diff options
Diffstat (limited to 'arch')
679 files changed, 8246 insertions, 7617 deletions
diff --git a/arch/Kconfig b/arch/Kconfig index 98de654b79b3..516f2b05bd66 100644 --- a/arch/Kconfig +++ b/arch/Kconfig @@ -540,11 +540,17 @@ config HAVE_CONTEXT_TRACKING help Provide kernel/user boundaries probes necessary for subsystems that need it, such as userspace RCU extended quiescent state. - Syscalls need to be wrapped inside user_exit()-user_enter() through - the slow path using TIF_NOHZ flag. Exceptions handlers must be - wrapped as well. Irqs are already protected inside - rcu_irq_enter/rcu_irq_exit() but preemption or signal handling on - irq exit still need to be protected. + Syscalls need to be wrapped inside user_exit()-user_enter(), either + optimized behind static key or through the slow path using TIF_NOHZ + flag. Exceptions handlers must be wrapped as well. Irqs are already + protected inside rcu_irq_enter/rcu_irq_exit() but preemption or signal + handling on irq exit still need to be protected. + +config HAVE_TIF_NOHZ + bool + help + Arch relies on TIF_NOHZ and syscall slow path to implement context + tracking calls to user_enter()/user_exit(). config HAVE_VIRT_CPU_ACCOUNTING bool @@ -738,8 +744,9 @@ config HAVE_STACK_VALIDATION config HAVE_RELIABLE_STACKTRACE bool help - Architecture has a save_stack_trace_tsk_reliable() function which - only returns a stack trace if it can guarantee the trace is reliable. + Architecture has either save_stack_trace_tsk_reliable() or + arch_stack_walk_reliable() function which only returns a stack trace + if it can guarantee the trace is reliable. config HAVE_ARCH_HASH bool diff --git a/arch/alpha/include/asm/futex.h b/arch/alpha/include/asm/futex.h index bfd3c01038f8..da67afd578fd 100644 --- a/arch/alpha/include/asm/futex.h +++ b/arch/alpha/include/asm/futex.h @@ -31,7 +31,8 @@ static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval, { int oldval = 0, ret; - pagefault_disable(); + if (!access_ok(uaddr, sizeof(u32))) + return -EFAULT; switch (op) { case FUTEX_OP_SET: @@ -53,8 +54,6 @@ static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval, ret = -ENOSYS; } - pagefault_enable(); - if (!ret) *oval = oldval; diff --git a/arch/alpha/kernel/irq_alpha.c b/arch/alpha/kernel/irq_alpha.c index da3e10d5f7fe..d17e44c99df9 100644 --- a/arch/alpha/kernel/irq_alpha.c +++ b/arch/alpha/kernel/irq_alpha.c @@ -213,32 +213,13 @@ process_mcheck_info(unsigned long vector, unsigned long la_ptr, * The special RTC interrupt type. The interrupt itself was * processed by PALcode, and comes in via entInt vector 1. */ - -struct irqaction timer_irqaction = { - .handler = rtc_timer_interrupt, - .name = "timer", -}; - void __init -init_rtc_irq(void) +init_rtc_irq(irq_handler_t handler) { irq_set_chip_and_handler_name(RTC_IRQ, &dummy_irq_chip, handle_percpu_irq, "RTC"); - setup_irq(RTC_IRQ, &timer_irqaction); + if (!handler) + handler = rtc_timer_interrupt; + if (request_irq(RTC_IRQ, handler, 0, "timer", NULL)) + pr_err("Failed to register timer interrupt\n"); } - -/* Dummy irqactions. */ -struct irqaction isa_cascade_irqaction = { - .handler = no_action, - .name = "isa-cascade" -}; - -struct irqaction timer_cascade_irqaction = { - .handler = no_action, - .name = "timer-cascade" -}; - -struct irqaction halt_switch_irqaction = { - .handler = no_action, - .name = "halt-switch" -}; diff --git a/arch/alpha/kernel/irq_i8259.c b/arch/alpha/kernel/irq_i8259.c index 5d54c076a8ae..1dcf0d9038fd 100644 --- a/arch/alpha/kernel/irq_i8259.c +++ b/arch/alpha/kernel/irq_i8259.c @@ -82,11 +82,6 @@ struct irq_chip i8259a_irq_type = { void __init init_i8259a_irqs(void) { - static struct irqaction cascade = { - .handler = no_action, - .name = "cascade", - }; - long i; outb(0xff, 0x21); /* mask all of 8259A-1 */ @@ -96,7 +91,8 @@ init_i8259a_irqs(void) irq_set_chip_and_handler(i, &i8259a_irq_type, handle_level_irq); } - setup_irq(2, &cascade); + if (request_irq(2, no_action, 0, "cascade", NULL)) + pr_err("Failed to request irq 2 (cascade)\n"); } diff --git a/arch/alpha/kernel/irq_impl.h b/arch/alpha/kernel/irq_impl.h index 16f2b0276f3a..fbf21892e66d 100644 --- a/arch/alpha/kernel/irq_impl.h +++ b/arch/alpha/kernel/irq_impl.h @@ -21,14 +21,9 @@ extern void isa_no_iack_sc_device_interrupt(unsigned long); extern void srm_device_interrupt(unsigned long); extern void pyxis_device_interrupt(unsigned long); -extern struct irqaction timer_irqaction; -extern struct irqaction isa_cascade_irqaction; -extern struct irqaction timer_cascade_irqaction; -extern struct irqaction halt_switch_irqaction; - extern void init_srm_irqs(long, unsigned long); extern void init_pyxis_irqs(unsigned long); -extern void init_rtc_irq(void); +extern void init_rtc_irq(irq_handler_t handler); extern void common_init_isa_dma(void); diff --git a/arch/alpha/kernel/irq_pyxis.c b/arch/alpha/kernel/irq_pyxis.c index a968b10e687d..27070b5bd33e 100644 --- a/arch/alpha/kernel/irq_pyxis.c +++ b/arch/alpha/kernel/irq_pyxis.c @@ -107,5 +107,6 @@ init_pyxis_irqs(unsigned long ignore_mask) irq_set_status_flags(i, IRQ_LEVEL); } - setup_irq(16+7, &isa_cascade_irqaction); + if (request_irq(16 + 7, no_action, 0, "isa-cascade", NULL)) + pr_err("Failed to register isa-cascade interrupt\n"); } diff --git a/arch/alpha/kernel/sys_alcor.c b/arch/alpha/kernel/sys_alcor.c index e56efd5b855f..ce5430056f65 100644 --- a/arch/alpha/kernel/sys_alcor.c +++ b/arch/alpha/kernel/sys_alcor.c @@ -133,7 +133,8 @@ alcor_init_irq(void) init_i8259a_irqs(); common_init_isa_dma(); - setup_irq(16+31, &isa_cascade_irqaction); + if (request_irq(16 + 31, no_action, 0, "isa-cascade", NULL)) + pr_err("Failed to register isa-cascade interrupt\n"); } diff --git a/arch/alpha/kernel/sys_cabriolet.c b/arch/alpha/kernel/sys_cabriolet.c index 10bc46a4ec40..0aa6a27d0e2f 100644 --- a/arch/alpha/kernel/sys_cabriolet.c +++ b/arch/alpha/kernel/sys_cabriolet.c @@ -112,7 +112,8 @@ common_init_irq(void (*srm_dev_int)(unsigned long v)) } common_init_isa_dma(); - setup_irq(16+4, &isa_cascade_irqaction); + if (request_irq(16 + 4, no_action, 0, "isa-cascade", NULL)) + pr_err("Failed to register isa-cascade interrupt\n"); } #ifndef CONFIG_ALPHA_PC164 diff --git a/arch/alpha/kernel/sys_eb64p.c b/arch/alpha/kernel/sys_eb64p.c index 5251937ec1b4..1cdfe55fb987 100644 --- a/arch/alpha/kernel/sys_eb64p.c +++ b/arch/alpha/kernel/sys_eb64p.c @@ -123,7 +123,8 @@ eb64p_init_irq(void) } common_init_isa_dma(); - setup_irq(16+5, &isa_cascade_irqaction); + if (request_irq(16 + 5, no_action, 0, "isa-cascade", NULL)) + pr_err("Failed to register isa-cascade interrupt\n"); } /* diff --git a/arch/alpha/kernel/sys_marvel.c b/arch/alpha/kernel/sys_marvel.c index 8d34cf6e002a..533899a4a1a1 100644 --- a/arch/alpha/kernel/sys_marvel.c +++ b/arch/alpha/kernel/sys_marvel.c @@ -397,7 +397,7 @@ marvel_init_pci(void) static void __init marvel_init_rtc(void) { - init_rtc_irq(); + init_rtc_irq(NULL); } static void diff --git a/arch/alpha/kernel/sys_miata.c b/arch/alpha/kernel/sys_miata.c index 6fa07dc5339d..702292af2225 100644 --- a/arch/alpha/kernel/sys_miata.c +++ b/arch/alpha/kernel/sys_miata.c @@ -81,8 +81,10 @@ miata_init_irq(void) init_pyxis_irqs(0x63b0000); common_init_isa_dma(); - setup_irq(16+2, &halt_switch_irqaction); /* SRM only? */ - setup_irq(16+6, &timer_cascade_irqaction); + if (request_irq(16 + 2, no_action, 0, "halt-switch", NULL)) + pr_err("Failed to register halt-switch interrupt\n"); + if (request_irq(16 + 6, no_action, 0, "timer-cascade", NULL)) + pr_err("Failed to register timer-cascade interrupt\n"); } diff --git a/arch/alpha/kernel/sys_ruffian.c b/arch/alpha/kernel/sys_ruffian.c index 07830cccabf9..d33074011960 100644 --- a/arch/alpha/kernel/sys_ruffian.c +++ b/arch/alpha/kernel/sys_ruffian.c @@ -82,7 +82,8 @@ ruffian_init_rtc(void) outb(0x31, 0x42); outb(0x13, 0x42); - setup_irq(0, &timer_irqaction); + if (request_irq(0, rtc_timer_interrupt, 0, "timer", NULL)) + pr_err("Failed to request irq 0 (timer)\n"); } static void diff --git a/arch/alpha/kernel/sys_rx164.c b/arch/alpha/kernel/sys_rx164.c index a3db719d3c38..4d85eaeb44aa 100644 --- a/arch/alpha/kernel/sys_rx164.c +++ b/arch/alpha/kernel/sys_rx164.c @@ -106,7 +106,8 @@ rx164_init_irq(void) init_i8259a_irqs(); common_init_isa_dma(); - setup_irq(16+20, &isa_cascade_irqaction); + if (request_irq(16 + 20, no_action, 0, "isa-cascade", NULL)) + pr_err("Failed to register isa-cascade interrupt\n"); } diff --git a/arch/alpha/kernel/sys_sx164.c b/arch/alpha/kernel/sys_sx164.c index 1ec638a2746a..17cc203176c8 100644 --- a/arch/alpha/kernel/sys_sx164.c +++ b/arch/alpha/kernel/sys_sx164.c @@ -54,7 +54,8 @@ sx164_init_irq(void) else init_pyxis_irqs(0xff00003f0000UL); - setup_irq(16+6, &timer_cascade_irqaction); + if (request_irq(16 + 6, no_action, 0, "timer-cascade", NULL)) + pr_err("Failed to register timer-cascade interrupt\n"); } /* diff --git a/arch/alpha/kernel/sys_wildfire.c b/arch/alpha/kernel/sys_wildfire.c index 8e64052811ab..2191bde161fd 100644 --- a/arch/alpha/kernel/sys_wildfire.c +++ b/arch/alpha/kernel/sys_wildfire.c @@ -156,10 +156,6 @@ static void __init wildfire_init_irq_per_pca(int qbbno, int pcano) { int i, irq_bias; - static struct irqaction isa_enable = { - .handler = no_action, - .name = "isa_enable", - }; irq_bias = qbbno * (WILDFIRE_PCA_PER_QBB * WILDFIRE_IRQ_PER_PCA) + pcano * WILDFIRE_IRQ_PER_PCA; @@ -198,7 +194,8 @@ wildfire_init_irq_per_pca(int qbbno, int pcano) irq_set_status_flags(i + irq_bias, IRQ_LEVEL); } - setup_irq(32+irq_bias, &isa_enable); + if (request_irq(32 + irq_bias, no_action, 0, "isa_enable", NULL)) + pr_err("Failed to register isa_enable interrupt\n"); } static void __init diff --git a/arch/alpha/kernel/time.c b/arch/alpha/kernel/time.c index 0069360697ee..4d01c392ab14 100644 --- a/arch/alpha/kernel/time.c +++ b/arch/alpha/kernel/time.c @@ -242,7 +242,7 @@ common_init_rtc(void) outb(0x31, 0x42); outb(0x13, 0x42); - init_rtc_irq(); + init_rtc_irq(NULL); } @@ -396,9 +396,7 @@ time_init(void) if (alpha_using_qemu) { clocksource_register_hz(&qemu_cs, NSEC_PER_SEC); init_qemu_clockevent(); - - timer_irqaction.handler = qemu_timer_interrupt; - init_rtc_irq(); + init_rtc_irq(qemu_timer_interrupt); return; } diff --git a/arch/arc/Kconfig b/arch/arc/Kconfig index ff2a393b635c..7124ab82dfa3 100644 --- a/arch/arc/Kconfig +++ b/arch/arc/Kconfig @@ -154,7 +154,7 @@ config ARC_CPU_HS help Support for ARC HS38x Cores based on ARCv2 ISA The notable features are: - - SMP configurations of upto 4 core with coherency + - SMP configurations of up to 4 cores with coherency - Optional L2 Cache and IO-Coherency - Revised Interrupt Architecture (multiple priorites, reg banks, auto stack switch, auto regfile save/restore) @@ -192,7 +192,7 @@ config ARC_SMP_HALT_ON_RESET help In SMP configuration cores can be configured as Halt-on-reset or they could all start at same time. For Halt-on-reset, non - masters are parked until Master kicks them so they can start of + masters are parked until Master kicks them so they can start off at designated entry point. For other case, all jump to common entry point and spin wait for Master's signal. diff --git a/arch/arc/configs/nps_defconfig b/arch/arc/configs/nps_defconfig index 07f26ed39f02..f7a978dfdf1d 100644 --- a/arch/arc/configs/nps_defconfig +++ b/arch/arc/configs/nps_defconfig @@ -21,8 +21,6 @@ CONFIG_MODULES=y CONFIG_MODULE_FORCE_LOAD=y CONFIG_MODULE_UNLOAD=y # CONFIG_BLK_DEV_BSG is not set -# CONFIG_IOSCHED_DEADLINE is not set -# CONFIG_IOSCHED_CFQ is not set CONFIG_ARC_PLAT_EZNPS=y CONFIG_SMP=y CONFIG_NR_CPUS=4096 diff --git a/arch/arc/configs/nsimosci_defconfig b/arch/arc/configs/nsimosci_defconfig index 5dd470b6609e..bf39a0091679 100644 --- a/arch/arc/configs/nsimosci_defconfig +++ b/arch/arc/configs/nsimosci_defconfig @@ -20,8 +20,6 @@ CONFIG_ISA_ARCOMPACT=y CONFIG_KPROBES=y CONFIG_MODULES=y # CONFIG_BLK_DEV_BSG is not set -# CONFIG_IOSCHED_DEADLINE is not set -# CONFIG_IOSCHED_CFQ is not set CONFIG_ARC_BUILTIN_DTB_NAME="nsimosci" # CONFIG_COMPACTION is not set CONFIG_NET=y diff --git a/arch/arc/configs/nsimosci_hs_defconfig b/arch/arc/configs/nsimosci_hs_defconfig index 3532e86f7bff..7121bd71c543 100644 --- a/arch/arc/configs/nsimosci_hs_defconfig +++ b/arch/arc/configs/nsimosci_hs_defconfig @@ -19,8 +19,6 @@ CONFIG_PERF_EVENTS=y CONFIG_KPROBES=y CONFIG_MODULES=y # CONFIG_BLK_DEV_BSG is not set -# CONFIG_IOSCHED_DEADLINE is not set -# CONFIG_IOSCHED_CFQ is not set CONFIG_ISA_ARCV2=y CONFIG_ARC_BUILTIN_DTB_NAME="nsimosci_hs" # CONFIG_COMPACTION is not set diff --git a/arch/arc/configs/nsimosci_hs_smp_defconfig b/arch/arc/configs/nsimosci_hs_smp_defconfig index d90448bee064..f9863b294a70 100644 --- a/arch/arc/configs/nsimosci_hs_smp_defconfig +++ b/arch/arc/configs/nsimosci_hs_smp_defconfig @@ -14,8 +14,6 @@ CONFIG_PERF_EVENTS=y CONFIG_KPROBES=y CONFIG_MODULES=y # CONFIG_BLK_DEV_BSG is not set -# CONFIG_IOSCHED_DEADLINE is not set -# CONFIG_IOSCHED_CFQ is not set CONFIG_ISA_ARCV2=y CONFIG_SMP=y # CONFIG_ARC_TIMERS_64BIT is not set diff --git a/arch/arc/include/asm/fpu.h b/arch/arc/include/asm/fpu.h index 64347250fdf5..006bcf88a7a5 100644 --- a/arch/arc/include/asm/fpu.h +++ b/arch/arc/include/asm/fpu.h @@ -43,6 +43,8 @@ extern void fpu_init_task(struct pt_regs *regs); #endif /* !CONFIG_ISA_ARCOMPACT */ +struct task_struct; + extern void fpu_save_restore(struct task_struct *p, struct task_struct *n); #else /* !CONFIG_ARC_FPU_SAVE_RESTORE */ diff --git a/arch/arc/include/asm/futex.h b/arch/arc/include/asm/futex.h index 9d0d070e6c22..607d1c16d4dd 100644 --- a/arch/arc/include/asm/futex.h +++ b/arch/arc/include/asm/futex.h @@ -75,10 +75,12 @@ static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval, { int oldval = 0, ret; + if (!access_ok(uaddr, sizeof(u32))) + return -EFAULT; + #ifndef CONFIG_ARC_HAS_LLSC preempt_disable(); /* to guarantee atomic r-m-w of futex op */ #endif - pagefault_disable(); switch (op) { case FUTEX_OP_SET: @@ -101,7 +103,6 @@ static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval, ret = -ENOSYS; } - pagefault_enable(); #ifndef CONFIG_ARC_HAS_LLSC preempt_enable(); #endif diff --git a/arch/arc/include/asm/linkage.h b/arch/arc/include/asm/linkage.h index d9ee43c6b7db..fe19f1d412e7 100644 --- a/arch/arc/include/asm/linkage.h +++ b/arch/arc/include/asm/linkage.h @@ -29,6 +29,8 @@ .endm #define ASM_NL ` /* use '`' to mark new line in macro */ +#define __ALIGN .align 4 +#define __ALIGN_STR __stringify(__ALIGN) /* annotation for data we want in DCCM - if enabled in .config */ .macro ARCFP_DATA nm diff --git a/arch/arc/kernel/setup.c b/arch/arc/kernel/setup.c index e1c647490f00..aa41af6ef4ac 100644 --- a/arch/arc/kernel/setup.c +++ b/arch/arc/kernel/setup.c @@ -8,11 +8,11 @@ #include <linux/delay.h> #include <linux/root_dev.h> #include <linux/clk.h> -#include <linux/clk-provider.h> #include <linux/clocksource.h> #include <linux/console.h> #include <linux/module.h> #include <linux/cpu.h> +#include <linux/of_clk.h> #include <linux/of_fdt.h> #include <linux/of.h> #include <linux/cache.h> diff --git a/arch/arc/kernel/troubleshoot.c b/arch/arc/kernel/troubleshoot.c index b79886a6cec8..d2999503fb8a 100644 --- a/arch/arc/kernel/troubleshoot.c +++ b/arch/arc/kernel/troubleshoot.c @@ -104,8 +104,7 @@ static void show_faulting_vma(unsigned long address) if (IS_ERR(nm)) nm = "?"; } - pr_info(" @off 0x%lx in [%s]\n" - " VMA: 0x%08lx to 0x%08lx\n", + pr_info(" @off 0x%lx in [%s] VMA: 0x%08lx to 0x%08lx\n", vma->vm_start < TASK_UNMAPPED_BASE ? address : address - vma->vm_start, nm, vma->vm_start, vma->vm_end); @@ -120,8 +119,6 @@ static void show_ecr_verbose(struct pt_regs *regs) unsigned int vec, cause_code; unsigned long address; - pr_info("\n[ECR ]: 0x%08lx => ", regs->event); - /* For Data fault, this is data address not instruction addr */ address = current->thread.fault_address; @@ -130,10 +127,10 @@ static void show_ecr_verbose(struct pt_regs *regs) /* For DTLB Miss or ProtV, display the memory involved too */ if (vec == ECR_V_DTLB_MISS) { - pr_cont("Invalid %s @ 0x%08lx by insn @ 0x%08lx\n", + pr_cont("Invalid %s @ 0x%08lx by insn @ %pS\n", (cause_code == 0x01) ? "Read" : ((cause_code == 0x02) ? "Write" : "EX"), - address, regs->ret); + address, (void *)regs->ret); } else if (vec == ECR_V_ITLB_MISS) { pr_cont("Insn could not be fetched\n"); } else if (vec == ECR_V_MACH_CHK) { @@ -191,31 +188,31 @@ void show_regs(struct pt_regs *regs) show_ecr_verbose(regs); - pr_info("[EFA ]: 0x%08lx\n[BLINK ]: %pS\n[ERET ]: %pS\n", - current->thread.fault_address, - (void *)regs->blink, (void *)regs->ret); - if (user_mode(regs)) show_faulting_vma(regs->ret); /* faulting code, not data */ - pr_info("[STAT32]: 0x%08lx", regs->status32); + pr_info("ECR: 0x%08lx EFA: 0x%08lx ERET: 0x%08lx\n", + regs->event, current->thread.fault_address, regs->ret); + + pr_info("STAT32: 0x%08lx", regs->status32); #define STS_BIT(r, bit) r->status32 & STATUS_##bit##_MASK ? #bit" " : "" #ifdef CONFIG_ISA_ARCOMPACT - pr_cont(" : %2s%2s%2s%2s%2s%2s%2s\n", + pr_cont(" [%2s%2s%2s%2s%2s%2s%2s]", (regs->status32 & STATUS_U_MASK) ? "U " : "K ", STS_BIT(regs, DE), STS_BIT(regs, AE), STS_BIT(regs, A2), STS_BIT(regs, A1), STS_BIT(regs, E2), STS_BIT(regs, E1)); #else - pr_cont(" : %2s%2s%2s%2s\n", + pr_cont(" [%2s%2s%2s%2s]", STS_BIT(regs, IE), (regs->status32 & STATUS_U_MASK) ? "U " : "K ", STS_BIT(regs, DE), STS_BIT(regs, AE)); #endif - pr_info("BTA: 0x%08lx\t SP: 0x%08lx\t FP: 0x%08lx\n", - regs->bta, regs->sp, regs->fp); + pr_cont(" BTA: 0x%08lx\n", regs->bta); + pr_info("BLK: %pS\n SP: 0x%08lx FP: 0x%08lx\n", + (void *)regs->blink, regs->sp, regs->fp); pr_info("LPS: 0x%08lx\tLPE: 0x%08lx\tLPC: 0x%08lx\n", regs->lp_start, regs->lp_end, regs->lp_count); diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 97864aabc2a6..03bbfc312fe7 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -3,7 +3,6 @@ config ARM bool default y select ARCH_32BIT_OFF_T - select ARCH_CLOCKSOURCE_DATA select ARCH_HAS_BINFMT_FLAT select ARCH_HAS_DEBUG_VIRTUAL if MMU select ARCH_HAS_DEVMEM_IS_ALLOWED diff --git a/arch/arm/Makefile b/arch/arm/Makefile index db857d07114f..1fc32b611f8a 100644 --- a/arch/arm/Makefile +++ b/arch/arm/Makefile @@ -307,13 +307,15 @@ endif ifeq ($(CONFIG_STACKPROTECTOR_PER_TASK),y) prepare: stack_protector_prepare stack_protector_prepare: prepare0 - $(eval KBUILD_CFLAGS += \ + $(eval SSP_PLUGIN_CFLAGS := \ -fplugin-arg-arm_ssp_per_task_plugin-tso=$(shell \ awk '{if ($$2 == "THREAD_SZ_ORDER") print $$3;}'\ include/generated/asm-offsets.h) \ -fplugin-arg-arm_ssp_per_task_plugin-offset=$(shell \ awk '{if ($$2 == "TI_STACK_CANARY") print $$3;}'\ include/generated/asm-offsets.h)) + $(eval KBUILD_CFLAGS += $(SSP_PLUGIN_CFLAGS)) + $(eval GCC_PLUGINS_CFLAGS += $(SSP_PLUGIN_CFLAGS)) endif all: $(notdir $(KBUILD_IMAGE)) diff --git a/arch/arm/boot/compressed/Makefile b/arch/arm/boot/compressed/Makefile index da599c3a1193..9c11e7490292 100644 --- a/arch/arm/boot/compressed/Makefile +++ b/arch/arm/boot/compressed/Makefile @@ -101,7 +101,6 @@ clean-files += piggy_data lib1funcs.S ashldi3.S bswapsdi2.S \ $(libfdt) $(libfdt_hdrs) hyp-stub.S KBUILD_CFLAGS += -DDISABLE_BRANCH_PROFILING -KBUILD_CFLAGS += $(DISABLE_ARM_SSP_PER_TASK_PLUGIN) ifeq ($(CONFIG_FUNCTION_TRACER),y) ORIG_CFLAGS := $(KBUILD_CFLAGS) @@ -117,7 +116,8 @@ CFLAGS_fdt_ro.o := $(nossp-flags-y) CFLAGS_fdt_rw.o := $(nossp-flags-y) CFLAGS_fdt_wip.o := $(nossp-flags-y) -ccflags-y := -fpic $(call cc-option,-mno-single-pic-base,) -fno-builtin -I$(obj) +ccflags-y := -fpic $(call cc-option,-mno-single-pic-base,) -fno-builtin \ + -I$(obj) $(DISABLE_ARM_SSP_PER_TASK_PLUGIN) asflags-y := -DZIMAGE # Supply kernel BSS size to the decompressor via a linker symbol. diff --git a/arch/arm/boot/compressed/efi-header.S b/arch/arm/boot/compressed/efi-header.S index a5983588f96b..62286da318e7 100644 --- a/arch/arm/boot/compressed/efi-header.S +++ b/arch/arm/boot/compressed/efi-header.S @@ -60,7 +60,7 @@ optional_header: .long __pecoff_code_size @ SizeOfCode .long __pecoff_data_size @ SizeOfInitializedData .long 0 @ SizeOfUninitializedData - .long efi_stub_entry - start @ AddressOfEntryPoint + .long efi_entry - start @ AddressOfEntryPoint .long start_offset @ BaseOfCode .long __pecoff_data_start - start @ BaseOfData @@ -70,8 +70,8 @@ extra_header_fields: .long SZ_512 @ FileAlignment .short 0 @ MajorOsVersion .short 0 @ MinorOsVersion - .short 0 @ MajorImageVersion - .short 0 @ MinorImageVersion + .short LINUX_EFISTUB_MAJOR_VERSION @ MajorImageVersion + .short LINUX_EFISTUB_MINOR_VERSION @ MinorImageVersion .short 0 @ MajorSubsystemVersion .short 0 @ MinorSubsystemVersion .long 0 @ Win32VersionValue diff --git a/arch/arm/boot/compressed/head.S b/arch/arm/boot/compressed/head.S index 088b0a060876..04f77214f050 100644 --- a/arch/arm/boot/compressed/head.S +++ b/arch/arm/boot/compressed/head.S @@ -1437,29 +1437,25 @@ __enter_kernel: reloc_code_end: #ifdef CONFIG_EFI_STUB - .align 2 -_start: .long start - . - -ENTRY(efi_stub_entry) - @ allocate space on stack for passing current zImage address - @ and for the EFI stub to return of new entry point of - @ zImage, as EFI stub may copy the kernel. Pointer address - @ is passed in r2. r0 and r1 are passed through from the - @ EFI firmware to efi_entry - adr ip, _start - ldr r3, [ip] - add r3, r3, ip - stmfd sp!, {r3, lr} - mov r2, sp @ pass zImage address in r2 - bl efi_entry - - @ Check for error return from EFI stub. r0 has FDT address - @ or error code. - cmn r0, #1 - beq efi_load_fail - - @ Preserve return value of efi_entry() in r4 - mov r4, r0 +ENTRY(efi_enter_kernel) + mov r7, r0 @ preserve image base + mov r4, r1 @ preserve DT pointer + + mov r0, r4 @ DT start + add r1, r4, r2 @ DT end + bl cache_clean_flush + + mov r0, r7 @ relocated zImage + ldr r1, =_edata @ size of zImage + add r1, r1, r0 @ end of zImage + bl cache_clean_flush + + @ The PE/COFF loader might not have cleaned the code we are + @ running beyond the PoU, and so calling cache_off below from + @ inside the PE/COFF loader allocated region is unsafe unless + @ we explicitly clean it to the PoC. + adr r0, call_cache_fn @ region of code we will + adr r1, 0f @ run with MMU off bl cache_clean_flush bl cache_off @@ -1469,18 +1465,10 @@ ENTRY(efi_stub_entry) mov r0, #0 mov r1, #0xFFFFFFFF mov r2, r4 - - @ Branch to (possibly) relocated zImage that is in [sp] - ldr lr, [sp] - ldr ip, =start_offset - add lr, lr, ip - mov pc, lr @ no mode switch - -efi_load_fail: - @ Return EFI_LOAD_ERROR to EFI firmware on error. - ldr r0, =0x80000001 - ldmfd sp!, {ip, pc} -ENDPROC(efi_stub_entry) + add r7, r7, #(__efi_start - start) + mov pc, r7 @ no mode switch +ENDPROC(efi_enter_kernel) +0: #endif .align diff --git a/arch/arm/boot/dts/am437x-idk-evm.dts b/arch/arm/boot/dts/am437x-idk-evm.dts index f3ced6df0c9b..9f66f96d09c9 100644 --- a/arch/arm/boot/dts/am437x-idk-evm.dts +++ b/arch/arm/boot/dts/am437x-idk-evm.dts @@ -526,11 +526,11 @@ * Supply voltage supervisor on board will not allow opp50 so * disable it and set opp100 as suspend OPP. */ - opp50@300000000 { + opp50-300000000 { status = "disabled"; }; - opp100@600000000 { + opp100-600000000 { opp-suspend; }; }; diff --git a/arch/arm/boot/dts/aspeed-g4.dtsi b/arch/arm/boot/dts/aspeed-g4.dtsi index 807a0fc20670..8e04303e8514 100644 --- a/arch/arm/boot/dts/aspeed-g4.dtsi +++ b/arch/arm/boot/dts/aspeed-g4.dtsi @@ -164,6 +164,8 @@ reg = <0x1e6a0000 0x300>; interrupts = <5>; clocks = <&syscon ASPEED_CLK_GATE_USBPORT1CLK>; + aspeed,vhub-downstream-ports = <5>; + aspeed,vhub-generic-endpoints = <15>; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_usb2d_default>; status = "disabled"; diff --git a/arch/arm/boot/dts/aspeed-g5.dtsi b/arch/arm/boot/dts/aspeed-g5.dtsi index ebec0fa8baa7..f12ec04d3cbc 100644 --- a/arch/arm/boot/dts/aspeed-g5.dtsi +++ b/arch/arm/boot/dts/aspeed-g5.dtsi @@ -195,6 +195,8 @@ reg = <0x1e6a0000 0x300>; interrupts = <5>; clocks = <&syscon ASPEED_CLK_GATE_USBPORT1CLK>; + aspeed,vhub-downstream-ports = <5>; + aspeed,vhub-generic-endpoints = <15>; pinctrl-names = "default"; pinctrl-0 = <&pinctrl_usb2ad_default>; status = "disabled"; diff --git a/arch/arm/boot/dts/aspeed-g6-pinctrl.dtsi b/arch/arm/boot/dts/aspeed-g6-pinctrl.dtsi index 045ce66ca876..7028e21bdd98 100644 --- a/arch/arm/boot/dts/aspeed-g6-pinctrl.dtsi +++ b/arch/arm/boot/dts/aspeed-g6-pinctrl.dtsi @@ -1112,6 +1112,31 @@ groups = "UART9"; }; + pinctrl_usb2ah_default: usb2ah_default { + function = "USB2AH"; + groups = "USBA"; + }; + + pinctrl_usb2ad_default: usb2ad_default { + function = "USB2AD"; + groups = "USBA"; + }; + + pinctrl_usb2bh_default: usb2bh_default { + function = "USB2BH"; + groups = "USBB"; + }; + + pinctrl_usb2bd_default: usb2bd_default { + function = "USB2BD"; + groups = "USBB"; + }; + + pinctrl_usb11bhid_default: usb11bhid_default { + function = "USB11BHID"; + groups = "USBB"; + }; + pinctrl_vb_default: vb_default { function = "VB"; groups = "VB"; diff --git a/arch/arm/boot/dts/aspeed-g6.dtsi b/arch/arm/boot/dts/aspeed-g6.dtsi index 796976d275e1..0a29b3b57a9d 100644 --- a/arch/arm/boot/dts/aspeed-g6.dtsi +++ b/arch/arm/boot/dts/aspeed-g6.dtsi @@ -245,6 +245,51 @@ status = "disabled"; }; + ehci0: usb@1e6a1000 { + compatible = "aspeed,ast2600-ehci", "generic-ehci"; + reg = <0x1e6a1000 0x100>; + interrupts = <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&syscon ASPEED_CLK_GATE_USBPORT1CLK>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_usb2ah_default>; + status = "disabled"; + }; + + ehci1: usb@1e6a3000 { + compatible = "aspeed,ast2600-ehci", "generic-ehci"; + reg = <0x1e6a3000 0x100>; + interrupts = <GIC_SPI 9 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&syscon ASPEED_CLK_GATE_USBPORT2CLK>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_usb2bh_default>; + status = "disabled"; + }; + + uhci: usb@1e6b0000 { + compatible = "aspeed,ast2600-uhci", "generic-uhci"; + reg = <0x1e6b0000 0x100>; + interrupts = <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>; + #ports = <2>; + clocks = <&syscon ASPEED_CLK_GATE_USBUHCICLK>; + status = "disabled"; + /* + * No default pinmux, it will follow EHCI, use an + * explicit pinmux override if EHCI is not enabled. + */ + }; + + vhub: usb-vhub@1e6a0000 { + compatible = "aspeed,ast2600-usb-vhub"; + reg = <0x1e6a0000 0x350>; + interrupts = <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&syscon ASPEED_CLK_GATE_USBPORT1CLK>; + aspeed,vhub-downstream-ports = <7>; + aspeed,vhub-generic-endpoints = <21>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_usb2ad_default>; + status = "disabled"; + }; + apb { compatible = "simple-bus"; #address-cells = <1>; diff --git a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts index 1b5a835f66bd..efea891b1a76 100644 --- a/arch/arm/boot/dts/bcm2711-rpi-4-b.dts +++ b/arch/arm/boot/dts/bcm2711-rpi-4-b.dts @@ -21,6 +21,7 @@ aliases { ethernet0 = &genet; + pcie0 = &pcie0; }; leds { @@ -31,6 +32,8 @@ pwr { label = "PWR"; gpios = <&expgpio 2 GPIO_ACTIVE_LOW>; + default-state = "keep"; + linux,default-trigger = "default-on"; }; }; diff --git a/arch/arm/boot/dts/bcm2835-rpi-zero-w.dts b/arch/arm/boot/dts/bcm2835-rpi-zero-w.dts index b75af21069f9..4c3f606e5b8d 100644 --- a/arch/arm/boot/dts/bcm2835-rpi-zero-w.dts +++ b/arch/arm/boot/dts/bcm2835-rpi-zero-w.dts @@ -112,6 +112,7 @@ &sdhci { #address-cells = <1>; #size-cells = <0>; + pinctrl-names = "default"; pinctrl-0 = <&emmc_gpio34 &gpclk2_gpio43>; bus-width = <4>; mmc-pwrseq = <&wifi_pwrseq>; diff --git a/arch/arm/boot/dts/bcm2835-rpi.dtsi b/arch/arm/boot/dts/bcm2835-rpi.dtsi index 394c8a71b13b..fd2c766e0f71 100644 --- a/arch/arm/boot/dts/bcm2835-rpi.dtsi +++ b/arch/arm/boot/dts/bcm2835-rpi.dtsi @@ -15,6 +15,7 @@ firmware: firmware { compatible = "raspberrypi,bcm2835-firmware", "simple-bus"; mboxes = <&mailbox>; + dma-ranges; }; power: power { diff --git a/arch/arm/boot/dts/bcm2837-rpi-3-a-plus.dts b/arch/arm/boot/dts/bcm2837-rpi-3-a-plus.dts index 66ab35eccba7..28be0332c1c8 100644 --- a/arch/arm/boot/dts/bcm2837-rpi-3-a-plus.dts +++ b/arch/arm/boot/dts/bcm2837-rpi-3-a-plus.dts @@ -26,6 +26,8 @@ pwr { label = "PWR"; gpios = <&expgpio 2 GPIO_ACTIVE_LOW>; + default-state = "keep"; + linux,default-trigger = "default-on"; }; }; }; diff --git a/arch/arm/boot/dts/bcm2837-rpi-3-b-plus.dts b/arch/arm/boot/dts/bcm2837-rpi-3-b-plus.dts index 74ed6d047807..37343148643d 100644 --- a/arch/arm/boot/dts/bcm2837-rpi-3-b-plus.dts +++ b/arch/arm/boot/dts/bcm2837-rpi-3-b-plus.dts @@ -27,6 +27,8 @@ pwr { label = "PWR"; gpios = <&expgpio 2 GPIO_ACTIVE_LOW>; + default-state = "keep"; + linux,default-trigger = "default-on"; }; }; diff --git a/arch/arm/boot/dts/dm8148-evm.dts b/arch/arm/boot/dts/dm8148-evm.dts index 3931fb068ff0..91d1018ab75f 100644 --- a/arch/arm/boot/dts/dm8148-evm.dts +++ b/arch/arm/boot/dts/dm8148-evm.dts @@ -24,12 +24,12 @@ &cpsw_emac0 { phy-handle = <ðphy0>; - phy-mode = "rgmii"; + phy-mode = "rgmii-id"; }; &cpsw_emac1 { phy-handle = <ðphy1>; - phy-mode = "rgmii"; + phy-mode = "rgmii-id"; }; &davinci_mdio { diff --git a/arch/arm/boot/dts/dm8148-t410.dts b/arch/arm/boot/dts/dm8148-t410.dts index 9e43d5ec0bb2..79ccdd4470f4 100644 --- a/arch/arm/boot/dts/dm8148-t410.dts +++ b/arch/arm/boot/dts/dm8148-t410.dts @@ -33,12 +33,12 @@ &cpsw_emac0 { phy-handle = <ðphy0>; - phy-mode = "rgmii"; + phy-mode = "rgmii-id"; }; &cpsw_emac1 { phy-handle = <ðphy1>; - phy-mode = "rgmii"; + phy-mode = "rgmii-id"; }; &davinci_mdio { diff --git a/arch/arm/boot/dts/dra62x-j5eco-evm.dts b/arch/arm/boot/dts/dra62x-j5eco-evm.dts index 861ab90a3f3a..c16e183822be 100644 --- a/arch/arm/boot/dts/dra62x-j5eco-evm.dts +++ b/arch/arm/boot/dts/dra62x-j5eco-evm.dts @@ -24,12 +24,12 @@ &cpsw_emac0 { phy-handle = <ðphy0>; - phy-mode = "rgmii"; + phy-mode = "rgmii-id"; }; &cpsw_emac1 { phy-handle = <ðphy1>; - phy-mode = "rgmii"; + phy-mode = "rgmii-id"; }; &davinci_mdio { diff --git a/arch/arm/boot/dts/dra7-evm.dts b/arch/arm/boot/dts/dra7-evm.dts index de7f85efaa51..af06a55d1c5c 100644 --- a/arch/arm/boot/dts/dra7-evm.dts +++ b/arch/arm/boot/dts/dra7-evm.dts @@ -61,10 +61,10 @@ regulator-max-microvolt = <1800000>; }; - evm_3v3: fixedregulator-evm3v3 { + vsys_3v3: fixedregulator-vsys3v3 { /* Output of Cntlr A of TPS43351-Q1 on dra7-evm */ compatible = "regulator-fixed"; - regulator-name = "evm_3v3"; + regulator-name = "vsys_3v3"; regulator-min-microvolt = <3300000>; regulator-max-microvolt = <3300000>; vin-supply = <&evm_12v0>; diff --git a/arch/arm/boot/dts/dra7-l4.dtsi b/arch/arm/boot/dts/dra7-l4.dtsi index fc418834890d..2119a78e9c15 100644 --- a/arch/arm/boot/dts/dra7-l4.dtsi +++ b/arch/arm/boot/dts/dra7-l4.dtsi @@ -3474,6 +3474,7 @@ clocks = <&l4per3_clkctrl DRA7_L4PER3_TIMER13_CLKCTRL 24>; clock-names = "fck"; interrupts = <GIC_SPI 339 IRQ_TYPE_LEVEL_HIGH>; + ti,timer-pwm; }; }; @@ -3501,6 +3502,7 @@ clocks = <&l4per3_clkctrl DRA7_L4PER3_TIMER14_CLKCTRL 24>; clock-names = "fck"; interrupts = <GIC_SPI 340 IRQ_TYPE_LEVEL_HIGH>; + ti,timer-pwm; }; }; @@ -3528,6 +3530,7 @@ clocks = <&l4per3_clkctrl DRA7_L4PER3_TIMER15_CLKCTRL 24>; clock-names = "fck"; interrupts = <GIC_SPI 341 IRQ_TYPE_LEVEL_HIGH>; + ti,timer-pwm; }; }; @@ -3555,6 +3558,7 @@ clocks = <&l4per3_clkctrl DRA7_L4PER3_TIMER16_CLKCTRL 24>; clock-names = "fck"; interrupts = <GIC_SPI 342 IRQ_TYPE_LEVEL_HIGH>; + ti,timer-pwm; }; }; diff --git a/arch/arm/boot/dts/dra7.dtsi b/arch/arm/boot/dts/dra7.dtsi index d78b684e7fca..5f5ee16f07a3 100644 --- a/arch/arm/boot/dts/dra7.dtsi +++ b/arch/arm/boot/dts/dra7.dtsi @@ -148,6 +148,7 @@ #address-cells = <1>; #size-cells = <1>; ranges = <0x0 0x0 0x0 0xc0000000>; + dma-ranges = <0x80000000 0x0 0x80000000 0x80000000>; ti,hwmods = "l3_main_1", "l3_main_2"; reg = <0x0 0x44000000 0x0 0x1000000>, <0x0 0x45000000 0x0 0x1000>; @@ -184,6 +185,7 @@ device_type = "pci"; ranges = <0x81000000 0 0 0x03000 0 0x00010000 0x82000000 0 0x20013000 0x13000 0 0xffed000>; + dma-ranges = <0x02000000 0x0 0x00000000 0x00000000 0x1 0x00000000>; bus-range = <0x00 0xff>; #interrupt-cells = <1>; num-lanes = <1>; @@ -238,6 +240,7 @@ device_type = "pci"; ranges = <0x81000000 0 0 0x03000 0 0x00010000 0x82000000 0 0x30013000 0x13000 0 0xffed000>; + dma-ranges = <0x02000000 0x0 0x00000000 0x00000000 0x1 0x00000000>; bus-range = <0x00 0xff>; #interrupt-cells = <1>; num-lanes = <1>; diff --git a/arch/arm/boot/dts/dra76x.dtsi b/arch/arm/boot/dts/dra76x.dtsi index 2f7539afef2b..42b8a205b64f 100644 --- a/arch/arm/boot/dts/dra76x.dtsi +++ b/arch/arm/boot/dts/dra76x.dtsi @@ -128,3 +128,8 @@ &usb4_tm { status = "disabled"; }; + +&mmc3 { + /* dra76x is not affected by i887 */ + max-frequency = <96000000>; +}; diff --git a/arch/arm/boot/dts/dra7xx-clocks.dtsi b/arch/arm/boot/dts/dra7xx-clocks.dtsi index 55cef4cac5f1..dc0a93bccbf1 100644 --- a/arch/arm/boot/dts/dra7xx-clocks.dtsi +++ b/arch/arm/boot/dts/dra7xx-clocks.dtsi @@ -796,16 +796,6 @@ clock-div = <1>; }; - ipu1_gfclk_mux: ipu1_gfclk_mux@520 { - #clock-cells = <0>; - compatible = "ti,mux-clock"; - clocks = <&dpll_abe_m2x2_ck>, <&dpll_core_h22x2_ck>; - ti,bit-shift = <24>; - reg = <0x0520>; - assigned-clocks = <&ipu1_gfclk_mux>; - assigned-clock-parents = <&dpll_core_h22x2_ck>; - }; - dummy_ck: dummy_ck { #clock-cells = <0>; compatible = "fixed-clock"; @@ -1564,6 +1554,8 @@ compatible = "ti,clkctrl"; reg = <0x20 0x4>; #clock-cells = <2>; + assigned-clocks = <&ipu1_clkctrl DRA7_IPU1_MMU_IPU1_CLKCTRL 24>; + assigned-clock-parents = <&dpll_core_h22x2_ck>; }; ipu_clkctrl: ipu-clkctrl@50 { diff --git a/arch/arm/boot/dts/exynos4412-galaxy-s3.dtsi b/arch/arm/boot/dts/exynos4412-galaxy-s3.dtsi index 31719c079d67..44f97546dd0a 100644 --- a/arch/arm/boot/dts/exynos4412-galaxy-s3.dtsi +++ b/arch/arm/boot/dts/exynos4412-galaxy-s3.dtsi @@ -33,7 +33,7 @@ }; }; - lcd_vdd3_reg: voltage-regulator-6 { + lcd_vdd3_reg: voltage-regulator-7 { compatible = "regulator-fixed"; regulator-name = "LCD_VDD_2.2V"; regulator-min-microvolt = <2200000>; @@ -42,7 +42,7 @@ enable-active-high; }; - ps_als_reg: voltage-regulator-7 { + ps_als_reg: voltage-regulator-8 { compatible = "regulator-fixed"; regulator-name = "LED_A_3.0V"; regulator-min-microvolt = <3000000>; diff --git a/arch/arm/boot/dts/exynos4412-n710x.dts b/arch/arm/boot/dts/exynos4412-n710x.dts index 98cd1284cd90..4189e1fb204c 100644 --- a/arch/arm/boot/dts/exynos4412-n710x.dts +++ b/arch/arm/boot/dts/exynos4412-n710x.dts @@ -13,7 +13,7 @@ /* bootargs are passed in by bootloader */ - cam_vdda_reg: voltage-regulator-6 { + cam_vdda_reg: voltage-regulator-7 { compatible = "regulator-fixed"; regulator-name = "CAM_SENSOR_CORE_1.2V"; regulator-min-microvolt = <1200000>; diff --git a/arch/arm/boot/dts/imx6dl-colibri-eval-v3.dts b/arch/arm/boot/dts/imx6dl-colibri-eval-v3.dts index cd075621de52..84fcc203a2e4 100644 --- a/arch/arm/boot/dts/imx6dl-colibri-eval-v3.dts +++ b/arch/arm/boot/dts/imx6dl-colibri-eval-v3.dts @@ -275,7 +275,7 @@ /* SRAM on Colibri nEXT_CS0 */ sram@0,0 { - compatible = "cypress,cy7c1019dv33-10zsxi, mtd-ram"; + compatible = "cypress,cy7c1019dv33-10zsxi", "mtd-ram"; reg = <0 0 0x00010000>; #address-cells = <1>; #size-cells = <1>; @@ -286,7 +286,7 @@ /* SRAM on Colibri nEXT_CS1 */ sram@1,0 { - compatible = "cypress,cy7c1019dv33-10zsxi, mtd-ram"; + compatible = "cypress,cy7c1019dv33-10zsxi", "mtd-ram"; reg = <1 0 0x00010000>; #address-cells = <1>; #size-cells = <1>; diff --git a/arch/arm/boot/dts/imx6qdl-phytec-phycore-som.dtsi b/arch/arm/boot/dts/imx6qdl-phytec-phycore-som.dtsi index 978dc1c2ff1b..77d871340eb7 100644 --- a/arch/arm/boot/dts/imx6qdl-phytec-phycore-som.dtsi +++ b/arch/arm/boot/dts/imx6qdl-phytec-phycore-som.dtsi @@ -112,7 +112,7 @@ regulators { vdd_arm: buck1 { regulator-name = "vdd_arm"; - regulator-min-microvolt = <730000>; + regulator-min-microvolt = <925000>; regulator-max-microvolt = <1380000>; regulator-initial-mode = <DA9063_BUCK_MODE_SYNC>; regulator-always-on; @@ -120,7 +120,7 @@ vdd_soc: buck2 { regulator-name = "vdd_soc"; - regulator-min-microvolt = <730000>; + regulator-min-microvolt = <1150000>; regulator-max-microvolt = <1380000>; regulator-initial-mode = <DA9063_BUCK_MODE_SYNC>; regulator-always-on; @@ -192,7 +192,6 @@ pinctrl-0 = <&pinctrl_usdhc4>; bus-width = <8>; non-removable; - vmmc-supply = <&vdd_emmc_1p8>; status = "disabled"; }; diff --git a/arch/arm/boot/dts/imx7-colibri.dtsi b/arch/arm/boot/dts/imx7-colibri.dtsi index d05be3f0e2a7..04717cf69db0 100644 --- a/arch/arm/boot/dts/imx7-colibri.dtsi +++ b/arch/arm/boot/dts/imx7-colibri.dtsi @@ -336,7 +336,6 @@ assigned-clock-rates = <400000000>; bus-width = <8>; fsl,tuning-step = <2>; - max-frequency = <100000000>; vmmc-supply = <®_module_3v3>; vqmmc-supply = <®_DCDC3>; non-removable; diff --git a/arch/arm/boot/dts/imx7d.dtsi b/arch/arm/boot/dts/imx7d.dtsi index 92f6d0c2a74f..4c22828df55f 100644 --- a/arch/arm/boot/dts/imx7d.dtsi +++ b/arch/arm/boot/dts/imx7d.dtsi @@ -44,7 +44,7 @@ opp-hz = /bits/ 64 <792000000>; opp-microvolt = <1000000>; clock-latency-ns = <150000>; - opp-supported-hw = <0xd>, <0xf>; + opp-supported-hw = <0xd>, <0x7>; opp-suspend; }; @@ -52,7 +52,7 @@ opp-hz = /bits/ 64 <996000000>; opp-microvolt = <1100000>; clock-latency-ns = <150000>; - opp-supported-hw = <0xc>, <0xf>; + opp-supported-hw = <0xc>, <0x7>; opp-suspend; }; @@ -60,7 +60,7 @@ opp-hz = /bits/ 64 <1200000000>; opp-microvolt = <1225000>; clock-latency-ns = <150000>; - opp-supported-hw = <0x8>, <0xf>; + opp-supported-hw = <0x8>, <0x3>; opp-suspend; }; }; diff --git a/arch/arm/boot/dts/ls1021a.dtsi b/arch/arm/boot/dts/ls1021a.dtsi index 0855b1fe98e0..760a68c163c8 100644 --- a/arch/arm/boot/dts/ls1021a.dtsi +++ b/arch/arm/boot/dts/ls1021a.dtsi @@ -747,7 +747,7 @@ }; mdio0: mdio@2d24000 { - compatible = "fsl,etsec2-mdio"; + compatible = "gianfar"; device_type = "mdio"; #address-cells = <1>; #size-cells = <0>; @@ -756,7 +756,7 @@ }; mdio1: mdio@2d64000 { - compatible = "fsl,etsec2-mdio"; + compatible = "gianfar"; device_type = "mdio"; #address-cells = <1>; #size-cells = <0>; diff --git a/arch/arm/boot/dts/motorola-mapphone-common.dtsi b/arch/arm/boot/dts/motorola-mapphone-common.dtsi index 85665506f4f8..9067e0ef4240 100644 --- a/arch/arm/boot/dts/motorola-mapphone-common.dtsi +++ b/arch/arm/boot/dts/motorola-mapphone-common.dtsi @@ -182,6 +182,14 @@ pwm-names = "enable", "direction"; direction-duty-cycle-ns = <10000000>; }; + + backlight: backlight { + compatible = "led-backlight"; + + leds = <&backlight_led>; + brightness-levels = <31 63 95 127 159 191 223 255>; + default-brightness-level = <6>; + }; }; &dss { @@ -205,6 +213,8 @@ vddi-supply = <&lcd_regulator>; reset-gpios = <&gpio4 5 GPIO_ACTIVE_HIGH>; /* gpio101 */ + backlight = <&backlight>; + width-mm = <50>; height-mm = <89>; @@ -393,12 +403,11 @@ ramp-up-us = <1024>; ramp-down-us = <8193>; - led@0 { + backlight_led: led@0 { reg = <0>; led-sources = <2>; ti,led-mode = <0>; label = ":backlight"; - linux,default-trigger = "backlight"; }; led@1 { @@ -420,7 +429,7 @@ reset-gpios = <&gpio6 13 GPIO_ACTIVE_HIGH>; /* gpio173 */ /* gpio_183 with sys_nirq2 pad as wakeup */ - interrupts-extended = <&gpio6 23 IRQ_TYPE_EDGE_FALLING>, + interrupts-extended = <&gpio6 23 IRQ_TYPE_LEVEL_LOW>, <&omap4_pmx_core 0x160>; interrupt-names = "irq", "wakeup"; wakeup-source; diff --git a/arch/arm/boot/dts/omap3-n900.dts b/arch/arm/boot/dts/omap3-n900.dts index c3c6d7d04a76..4089d97405c9 100644 --- a/arch/arm/boot/dts/omap3-n900.dts +++ b/arch/arm/boot/dts/omap3-n900.dts @@ -854,34 +854,46 @@ compatible = "ti,omap2-onenand"; reg = <0 0 0x20000>; /* CS0, offset 0, IO size 128K */ + /* + * These timings are based on CONFIG_OMAP_GPMC_DEBUG=y reported + * bootloader set values when booted with v5.1 + * (OneNAND Manufacturer: Samsung): + * + * cs0 GPMC_CS_CONFIG1: 0xfb001202 + * cs0 GPMC_CS_CONFIG2: 0x00111100 + * cs0 GPMC_CS_CONFIG3: 0x00020200 + * cs0 GPMC_CS_CONFIG4: 0x11001102 + * cs0 GPMC_CS_CONFIG5: 0x03101616 + * cs0 GPMC_CS_CONFIG6: 0x90060000 + */ gpmc,sync-read; gpmc,sync-write; gpmc,burst-length = <16>; gpmc,burst-read; gpmc,burst-wrap; gpmc,burst-write; - gpmc,device-width = <2>; /* GPMC_DEVWIDTH_16BIT */ - gpmc,mux-add-data = <2>; /* GPMC_MUX_AD */ + gpmc,device-width = <2>; + gpmc,mux-add-data = <2>; gpmc,cs-on-ns = <0>; - gpmc,cs-rd-off-ns = <87>; - gpmc,cs-wr-off-ns = <87>; + gpmc,cs-rd-off-ns = <102>; + gpmc,cs-wr-off-ns = <102>; gpmc,adv-on-ns = <0>; - gpmc,adv-rd-off-ns = <10>; - gpmc,adv-wr-off-ns = <10>; - gpmc,oe-on-ns = <15>; - gpmc,oe-off-ns = <87>; + gpmc,adv-rd-off-ns = <12>; + gpmc,adv-wr-off-ns = <12>; + gpmc,oe-on-ns = <12>; + gpmc,oe-off-ns = <102>; gpmc,we-on-ns = <0>; - gpmc,we-off-ns = <87>; - gpmc,rd-cycle-ns = <112>; - gpmc,wr-cycle-ns = <112>; - gpmc,access-ns = <81>; - gpmc,page-burst-access-ns = <15>; + gpmc,we-off-ns = <102>; + gpmc,rd-cycle-ns = <132>; + gpmc,wr-cycle-ns = <132>; + gpmc,access-ns = <96>; + gpmc,page-burst-access-ns = <18>; gpmc,bus-turnaround-ns = <0>; gpmc,cycle2cycle-delay-ns = <0>; gpmc,wait-monitoring-ns = <0>; - gpmc,clk-activation-ns = <5>; - gpmc,wr-data-mux-bus-ns = <30>; - gpmc,wr-access-ns = <81>; + gpmc,clk-activation-ns = <6>; + gpmc,wr-data-mux-bus-ns = <36>; + gpmc,wr-access-ns = <96>; gpmc,sync-clk-ps = <15000>; /* diff --git a/arch/arm/boot/dts/omap5.dtsi b/arch/arm/boot/dts/omap5.dtsi index d0ecf54d5a23..a7562d3deb1a 100644 --- a/arch/arm/boot/dts/omap5.dtsi +++ b/arch/arm/boot/dts/omap5.dtsi @@ -143,6 +143,7 @@ #address-cells = <1>; #size-cells = <1>; ranges = <0 0 0 0xc0000000>; + dma-ranges = <0x80000000 0x0 0x80000000 0x80000000>; ti,hwmods = "l3_main_1", "l3_main_2", "l3_main_3"; reg = <0 0x44000000 0 0x2000>, <0 0x44800000 0 0x3000>, diff --git a/arch/arm/boot/dts/ox810se.dtsi b/arch/arm/boot/dts/ox810se.dtsi index 9f6c2b660ed3..0755e5864c4a 100644 --- a/arch/arm/boot/dts/ox810se.dtsi +++ b/arch/arm/boot/dts/ox810se.dtsi @@ -323,8 +323,8 @@ interrupt-controller; reg = <0 0x200>; #interrupt-cells = <1>; - valid-mask = <0xFFFFFFFF>; - clear-mask = <0>; + valid-mask = <0xffffffff>; + clear-mask = <0xffffffff>; }; timer0: timer@200 { diff --git a/arch/arm/boot/dts/ox820.dtsi b/arch/arm/boot/dts/ox820.dtsi index c9b327732063..90846a7655b4 100644 --- a/arch/arm/boot/dts/ox820.dtsi +++ b/arch/arm/boot/dts/ox820.dtsi @@ -240,8 +240,8 @@ reg = <0 0x200>; interrupts = <GIC_SPI 5 IRQ_TYPE_LEVEL_HIGH>; #interrupt-cells = <1>; - valid-mask = <0xFFFFFFFF>; - clear-mask = <0>; + valid-mask = <0xffffffff>; + clear-mask = <0xffffffff>; }; timer0: timer@200 { diff --git a/arch/arm/boot/dts/r8a7779.dtsi b/arch/arm/boot/dts/r8a7779.dtsi index beb9885e6ffc..c0999e27e9b1 100644 --- a/arch/arm/boot/dts/r8a7779.dtsi +++ b/arch/arm/boot/dts/r8a7779.dtsi @@ -377,7 +377,7 @@ }; sata: sata@fc600000 { - compatible = "renesas,sata-r8a7779", "renesas,rcar-sata"; + compatible = "renesas,sata-r8a7779"; reg = <0xfc600000 0x200000>; interrupts = <GIC_SPI 100 IRQ_TYPE_LEVEL_HIGH>; clocks = <&mstp1_clks R8A7779_CLK_SATA>; diff --git a/arch/arm/boot/dts/sun8i-a33.dtsi b/arch/arm/boot/dts/sun8i-a33.dtsi index 1532a0e59af4..a2c37adacf77 100644 --- a/arch/arm/boot/dts/sun8i-a33.dtsi +++ b/arch/arm/boot/dts/sun8i-a33.dtsi @@ -215,7 +215,7 @@ }; crypto: crypto-engine@1c15000 { - compatible = "allwinner,sun4i-a10-crypto"; + compatible = "allwinner,sun8i-a33-crypto"; reg = <0x01c15000 0x1000>; interrupts = <GIC_SPI 80 IRQ_TYPE_LEVEL_HIGH>; clocks = <&ccu CLK_BUS_SS>, <&ccu CLK_SS>; diff --git a/arch/arm/boot/dts/sun8i-a83t-tbs-a711.dts b/arch/arm/boot/dts/sun8i-a83t-tbs-a711.dts index 2fd31a0a0b34..e8b3669e0e5d 100644 --- a/arch/arm/boot/dts/sun8i-a83t-tbs-a711.dts +++ b/arch/arm/boot/dts/sun8i-a83t-tbs-a711.dts @@ -374,8 +374,8 @@ }; ®_dldo3 { - regulator-min-microvolt = <2800000>; - regulator-max-microvolt = <2800000>; + regulator-min-microvolt = <1800000>; + regulator-max-microvolt = <1800000>; regulator-name = "vdd-csi"; }; @@ -498,7 +498,8 @@ }; &usbphy { - usb0_id_det-gpios = <&pio 7 11 GPIO_ACTIVE_HIGH>; /* PH11 */ + usb0_id_det-gpios = <&pio 7 11 (GPIO_ACTIVE_HIGH | GPIO_PULL_UP)>; /* PH11 */ + usb0_vbus_power-supply = <&usb_power_supply>; usb0_vbus-supply = <®_drivevbus>; usb1_vbus-supply = <®_vmain>; usb2_vbus-supply = <®_vmain>; diff --git a/arch/arm/boot/dts/sun8i-a83t.dtsi b/arch/arm/boot/dts/sun8i-a83t.dtsi index 74ac7ee9383c..e7b9bef1be6b 100644 --- a/arch/arm/boot/dts/sun8i-a83t.dtsi +++ b/arch/arm/boot/dts/sun8i-a83t.dtsi @@ -1006,10 +1006,10 @@ reg = <0x01c30000 0x104>; interrupts = <GIC_SPI 82 IRQ_TYPE_LEVEL_HIGH>; interrupt-names = "macirq"; - resets = <&ccu CLK_BUS_EMAC>; - reset-names = "stmmaceth"; - clocks = <&ccu RST_BUS_EMAC>; + clocks = <&ccu CLK_BUS_EMAC>; clock-names = "stmmaceth"; + resets = <&ccu RST_BUS_EMAC>; + reset-names = "stmmaceth"; status = "disabled"; mdio: mdio { diff --git a/arch/arm/boot/dts/sun8i-r40.dtsi b/arch/arm/boot/dts/sun8i-r40.dtsi index 8f09a24b36ec..a9d5d6ddbd71 100644 --- a/arch/arm/boot/dts/sun8i-r40.dtsi +++ b/arch/arm/boot/dts/sun8i-r40.dtsi @@ -181,6 +181,32 @@ interrupts = <GIC_SPI 0 IRQ_TYPE_LEVEL_HIGH>; }; + spi0: spi@1c05000 { + compatible = "allwinner,sun8i-r40-spi", + "allwinner,sun8i-h3-spi"; + reg = <0x01c05000 0x1000>; + interrupts = <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&ccu CLK_BUS_SPI0>, <&ccu CLK_SPI0>; + clock-names = "ahb", "mod"; + resets = <&ccu RST_BUS_SPI0>; + status = "disabled"; + #address-cells = <1>; + #size-cells = <0>; + }; + + spi1: spi@1c06000 { + compatible = "allwinner,sun8i-r40-spi", + "allwinner,sun8i-h3-spi"; + reg = <0x01c06000 0x1000>; + interrupts = <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&ccu CLK_BUS_SPI1>, <&ccu CLK_SPI1>; + clock-names = "ahb", "mod"; + resets = <&ccu RST_BUS_SPI1>; + status = "disabled"; + #address-cells = <1>; + #size-cells = <0>; + }; + csi0: csi@1c09000 { compatible = "allwinner,sun8i-r40-csi0", "allwinner,sun7i-a20-csi0"; @@ -290,6 +316,29 @@ resets = <&ccu RST_BUS_CE>; }; + spi2: spi@1c17000 { + compatible = "allwinner,sun8i-r40-spi", + "allwinner,sun8i-h3-spi"; + reg = <0x01c17000 0x1000>; + interrupts = <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&ccu CLK_BUS_SPI2>, <&ccu CLK_SPI2>; + clock-names = "ahb", "mod"; + resets = <&ccu RST_BUS_SPI2>; + status = "disabled"; + #address-cells = <1>; + #size-cells = <0>; + }; + + ahci: sata@1c18000 { + compatible = "allwinner,sun8i-r40-ahci"; + reg = <0x01c18000 0x1000>; + interrupts = <GIC_SPI 56 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&ccu CLK_BUS_SATA>, <&ccu CLK_SATA>; + resets = <&ccu RST_BUS_SATA>; + reset-names = "ahci"; + status = "disabled"; + }; + ehci1: usb@1c19000 { compatible = "allwinner,sun8i-r40-ehci", "generic-ehci"; reg = <0x01c19000 0x100>; @@ -336,6 +385,19 @@ status = "disabled"; }; + spi3: spi@1c1f000 { + compatible = "allwinner,sun8i-r40-spi", + "allwinner,sun8i-h3-spi"; + reg = <0x01c1f000 0x1000>; + interrupts = <GIC_SPI 50 IRQ_TYPE_LEVEL_HIGH>; + clocks = <&ccu CLK_BUS_SPI3>, <&ccu CLK_SPI3>; + clock-names = "ahb", "mod"; + resets = <&ccu RST_BUS_SPI3>; + status = "disabled"; + #address-cells = <1>; + #size-cells = <0>; + }; + ccu: clock@1c20000 { compatible = "allwinner,sun8i-r40-ccu"; reg = <0x01c20000 0x400>; @@ -653,69 +715,6 @@ #size-cells = <0>; }; - spi0: spi@1c05000 { - compatible = "allwinner,sun8i-r40-spi", - "allwinner,sun8i-h3-spi"; - reg = <0x01c05000 0x1000>; - interrupts = <GIC_SPI 10 IRQ_TYPE_LEVEL_HIGH>; - clocks = <&ccu CLK_BUS_SPI0>, <&ccu CLK_SPI0>; - clock-names = "ahb", "mod"; - resets = <&ccu RST_BUS_SPI0>; - status = "disabled"; - #address-cells = <1>; - #size-cells = <0>; - }; - - spi1: spi@1c06000 { - compatible = "allwinner,sun8i-r40-spi", - "allwinner,sun8i-h3-spi"; - reg = <0x01c06000 0x1000>; - interrupts = <GIC_SPI 11 IRQ_TYPE_LEVEL_HIGH>; - clocks = <&ccu CLK_BUS_SPI1>, <&ccu CLK_SPI1>; - clock-names = "ahb", "mod"; - resets = <&ccu RST_BUS_SPI1>; - status = "disabled"; - #address-cells = <1>; - #size-cells = <0>; - }; - - spi2: spi@1c07000 { - compatible = "allwinner,sun8i-r40-spi", - "allwinner,sun8i-h3-spi"; - reg = <0x01c07000 0x1000>; - interrupts = <GIC_SPI 12 IRQ_TYPE_LEVEL_HIGH>; - clocks = <&ccu CLK_BUS_SPI2>, <&ccu CLK_SPI2>; - clock-names = "ahb", "mod"; - resets = <&ccu RST_BUS_SPI2>; - status = "disabled"; - #address-cells = <1>; - #size-cells = <0>; - }; - - spi3: spi@1c0f000 { - compatible = "allwinner,sun8i-r40-spi", - "allwinner,sun8i-h3-spi"; - reg = <0x01c0f000 0x1000>; - interrupts = <GIC_SPI 50 IRQ_TYPE_LEVEL_HIGH>; - clocks = <&ccu CLK_BUS_SPI3>, <&ccu CLK_SPI3>; - clock-names = "ahb", "mod"; - resets = <&ccu RST_BUS_SPI3>; - status = "disabled"; - #address-cells = <1>; - #size-cells = <0>; - }; - - ahci: sata@1c18000 { - compatible = "allwinner,sun8i-r40-ahci"; - reg = <0x01c18000 0x1000>; - interrupts = <GIC_SPI 56 IRQ_TYPE_LEVEL_HIGH>; - clocks = <&ccu CLK_BUS_SATA>, <&ccu CLK_SATA>; - resets = <&ccu RST_BUS_SATA>; - reset-names = "ahci"; - status = "disabled"; - - }; - gmac: ethernet@1c50000 { compatible = "allwinner,sun8i-r40-gmac"; syscon = <&ccu>; diff --git a/arch/arm/common/sa1111.c b/arch/arm/common/sa1111.c index 947ef7981d92..c98ebae1aeac 100644 --- a/arch/arm/common/sa1111.c +++ b/arch/arm/common/sa1111.c @@ -302,10 +302,13 @@ static int sa1111_retrigger_irq(struct irq_data *d) break; } - if (i == 8) + if (i == 8) { pr_err("Danger Will Robinson: failed to re-trigger IRQ%d\n", d->irq); - return i == 8 ? -1 : 0; + return 0; + } + + return 1; } static int sa1111_type_irq(struct irq_data *d, unsigned int flags) diff --git a/arch/arm/configs/bcm2835_defconfig b/arch/arm/configs/bcm2835_defconfig index 519ff58e67b3..0afcae9f7cf8 100644 --- a/arch/arm/configs/bcm2835_defconfig +++ b/arch/arm/configs/bcm2835_defconfig @@ -178,6 +178,7 @@ CONFIG_SCHED_TRACER=y CONFIG_STACK_TRACER=y CONFIG_FUNCTION_PROFILER=y CONFIG_TEST_KSTRTOX=y +CONFIG_DEBUG_FS=y CONFIG_KGDB=y CONFIG_KGDB_KDB=y CONFIG_STRICT_DEVMEM=y diff --git a/arch/arm/configs/omap2plus_defconfig b/arch/arm/configs/omap2plus_defconfig index c32c338f7704..847f9874ccc4 100644 --- a/arch/arm/configs/omap2plus_defconfig +++ b/arch/arm/configs/omap2plus_defconfig @@ -375,6 +375,7 @@ CONFIG_BACKLIGHT_GENERIC=m CONFIG_BACKLIGHT_PWM=m CONFIG_BACKLIGHT_PANDORA=m CONFIG_BACKLIGHT_GPIO=m +CONFIG_BACKLIGHT_LED=m CONFIG_FRAMEBUFFER_CONSOLE=y CONFIG_FRAMEBUFFER_CONSOLE_ROTATION=y CONFIG_LOGO=y diff --git a/arch/arm/configs/socfpga_defconfig b/arch/arm/configs/socfpga_defconfig index fe2e1e82e233..e73c97b0f5b0 100644 --- a/arch/arm/configs/socfpga_defconfig +++ b/arch/arm/configs/socfpga_defconfig @@ -157,6 +157,7 @@ CONFIG_NLS_ISO8859_1=y CONFIG_PRINTK_TIME=y CONFIG_DEBUG_INFO=y CONFIG_MAGIC_SYSRQ=y +CONFIG_DEBUG_FS=y CONFIG_DETECT_HUNG_TASK=y # CONFIG_SCHED_DEBUG is not set CONFIG_FUNCTION_TRACER=y diff --git a/arch/arm/include/asm/clocksource.h b/arch/arm/include/asm/clocksource.h index 0b350a7e26f3..13651c731a81 100644 --- a/arch/arm/include/asm/clocksource.h +++ b/arch/arm/include/asm/clocksource.h @@ -1,8 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0 */ #ifndef _ASM_CLOCKSOURCE_H #define _ASM_CLOCKSOURCE_H -struct arch_clocksource_data { - bool vdso_direct; /* Usable for direct VDSO access? */ -}; +#include <asm/vdso/clocksource.h> -#endif +#endif /* _ASM_CLOCKSOURCE_H */ diff --git a/arch/arm/include/asm/cp15.h b/arch/arm/include/asm/cp15.h index d2453e2d3f1f..a54230e65647 100644 --- a/arch/arm/include/asm/cp15.h +++ b/arch/arm/include/asm/cp15.h @@ -50,25 +50,7 @@ #ifdef CONFIG_CPU_CP15 -#define __ACCESS_CP15(CRn, Op1, CRm, Op2) \ - "mrc", "mcr", __stringify(p15, Op1, %0, CRn, CRm, Op2), u32 -#define __ACCESS_CP15_64(Op1, CRm) \ - "mrrc", "mcrr", __stringify(p15, Op1, %Q0, %R0, CRm), u64 - -#define __read_sysreg(r, w, c, t) ({ \ - t __val; \ - asm volatile(r " " c : "=r" (__val)); \ - __val; \ -}) -#define read_sysreg(...) __read_sysreg(__VA_ARGS__) - -#define __write_sysreg(v, r, w, c, t) asm volatile(w " " c : : "r" ((t)(v))) -#define write_sysreg(v, ...) __write_sysreg(v, __VA_ARGS__) - -#define BPIALL __ACCESS_CP15(c7, 0, c5, 6) -#define ICIALLU __ACCESS_CP15(c7, 0, c5, 0) - -#define CNTVCT __ACCESS_CP15_64(1, c14) +#include <asm/vdso/cp15.h> extern unsigned long cr_alignment; /* defined in entry-armv.S */ diff --git a/arch/arm/include/asm/floppy.h b/arch/arm/include/asm/floppy.h index f4fe4d02cef2..79fa327238e8 100644 --- a/arch/arm/include/asm/floppy.h +++ b/arch/arm/include/asm/floppy.h @@ -8,16 +8,18 @@ */ #ifndef __ASM_ARM_FLOPPY_H #define __ASM_ARM_FLOPPY_H -#if 0 -#include <mach/floppy.h> -#endif -#define fd_outb(val,port) \ - do { \ - if ((port) == (u32)FD_DOR) \ - fd_setdor((val)); \ - else \ - outb((val),(port)); \ +#define fd_outb(val,port) \ + do { \ + int new_val = (val); \ + if (((port) & 7) == FD_DOR) { \ + if (new_val & 0xf0) \ + new_val = (new_val & 0x0c) | \ + floppy_selects[new_val & 3]; \ + else \ + new_val &= 0x0c; \ + } \ + outb(new_val, (port)); \ } while(0) #define fd_inb(port) inb((port)) @@ -53,69 +55,7 @@ static inline int fd_dma_setup(void *data, unsigned int length, * to a non-zero track, and then restoring it to track 0. If an error occurs, * then there is no floppy drive present. [to be put back in again] */ -static unsigned char floppy_selects[2][4] = -{ - { 0x10, 0x21, 0x23, 0x33 }, - { 0x10, 0x21, 0x23, 0x33 } -}; - -#define fd_setdor(dor) \ -do { \ - int new_dor = (dor); \ - if (new_dor & 0xf0) \ - new_dor = (new_dor & 0x0c) | floppy_selects[fdc][new_dor & 3]; \ - else \ - new_dor &= 0x0c; \ - outb(new_dor, FD_DOR); \ -} while (0) - -/* - * Someday, we'll automatically detect which drives are present... - */ -static inline void fd_scandrives (void) -{ -#if 0 - int floppy, drive_count; - - fd_disable_irq(); - raw_cmd = &default_raw_cmd; - raw_cmd->flags = FD_RAW_SPIN | FD_RAW_NEED_SEEK; - raw_cmd->track = 0; - raw_cmd->rate = ?; - drive_count = 0; - for (floppy = 0; floppy < 4; floppy ++) { - current_drive = drive_count; - /* - * Turn on floppy motor - */ - if (start_motor(redo_fd_request)) - continue; - /* - * Set up FDC - */ - fdc_specify(); - /* - * Tell FDC to recalibrate - */ - output_byte(FD_RECALIBRATE); - LAST_OUT(UNIT(floppy)); - /* wait for command to complete */ - if (!successful) { - int i; - for (i = drive_count; i < 3; i--) - floppy_selects[fdc][i] = floppy_selects[fdc][i + 1]; - floppy_selects[fdc][3] = 0; - floppy -= 1; - } else - drive_count++; - } -#else - floppy_selects[0][0] = 0x10; - floppy_selects[0][1] = 0x21; - floppy_selects[0][2] = 0x23; - floppy_selects[0][3] = 0x33; -#endif -} +static unsigned char floppy_selects[4] = { 0x10, 0x21, 0x23, 0x33 }; #define FDC1 (0x3f0) @@ -135,9 +75,7 @@ static inline void fd_scandrives (void) */ static void driveswap(int *ints, int dummy, int dummy2) { - floppy_selects[0][0] ^= floppy_selects[0][1]; - floppy_selects[0][1] ^= floppy_selects[0][0]; - floppy_selects[0][0] ^= floppy_selects[0][1]; + swap(floppy_selects[0], floppy_selects[1]); } #define EXTRA_FLOPPY_PARAMS ,{ "driveswap", &driveswap, NULL, 0, 0 } diff --git a/arch/arm/include/asm/futex.h b/arch/arm/include/asm/futex.h index 83c391b597d4..e133da303a98 100644 --- a/arch/arm/include/asm/futex.h +++ b/arch/arm/include/asm/futex.h @@ -134,10 +134,12 @@ arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr) { int oldval = 0, ret, tmp; + if (!access_ok(uaddr, sizeof(u32))) + return -EFAULT; + #ifndef CONFIG_SMP preempt_disable(); #endif - pagefault_disable(); switch (op) { case FUTEX_OP_SET: @@ -159,7 +161,6 @@ arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr) ret = -ENOSYS; } - pagefault_enable(); #ifndef CONFIG_SMP preempt_enable(); #endif diff --git a/arch/arm/include/asm/processor.h b/arch/arm/include/asm/processor.h index 614bf829e454..b9241051e5cb 100644 --- a/arch/arm/include/asm/processor.h +++ b/arch/arm/include/asm/processor.h @@ -14,6 +14,7 @@ #include <asm/ptrace.h> #include <asm/types.h> #include <asm/unified.h> +#include <asm/vdso/processor.h> #ifdef __KERNEL__ #define STACK_TOP ((current->personality & ADDR_LIMIT_32BIT) ? \ @@ -85,16 +86,6 @@ extern void release_thread(struct task_struct *); unsigned long get_wchan(struct task_struct *p); -#if __LINUX_ARM_ARCH__ == 6 || defined(CONFIG_ARM_ERRATA_754327) -#define cpu_relax() \ - do { \ - smp_mb(); \ - __asm__ __volatile__("nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;"); \ - } while (0) -#else -#define cpu_relax() barrier() -#endif - #define task_pt_regs(p) \ ((struct pt_regs *)(THREAD_START_SP + task_stack_page(p)) - 1) diff --git a/arch/arm/include/asm/thread_info.h b/arch/arm/include/asm/thread_info.h index 0d0d5178e2c3..3609a6980c34 100644 --- a/arch/arm/include/asm/thread_info.h +++ b/arch/arm/include/asm/thread_info.h @@ -141,7 +141,6 @@ extern int vfp_restore_user_hwstate(struct user_vfp *, #define TIF_SYSCALL_TRACEPOINT 6 /* syscall tracepoint instrumentation */ #define TIF_SECCOMP 7 /* seccomp syscall filtering active */ -#define TIF_NOHZ 12 /* in adaptive nohz mode */ #define TIF_USING_IWMMXT 17 #define TIF_MEMDIE 18 /* is terminating due to OOM killer */ #define TIF_RESTORE_SIGMASK 20 diff --git a/arch/arm/include/asm/topology.h b/arch/arm/include/asm/topology.h index 8a0fae94d45e..435aba289fc5 100644 --- a/arch/arm/include/asm/topology.h +++ b/arch/arm/include/asm/topology.h @@ -16,6 +16,9 @@ /* Enable topology flag updates */ #define arch_update_cpu_topology topology_update_cpu_topology +/* Replace task scheduler's default thermal pressure retrieve API */ +#define arch_scale_thermal_pressure topology_get_thermal_pressure + #else static inline void init_cpu_topology(void) { } diff --git a/arch/arm/include/asm/vdso/clocksource.h b/arch/arm/include/asm/vdso/clocksource.h new file mode 100644 index 000000000000..50c0b19fb755 --- /dev/null +++ b/arch/arm/include/asm/vdso/clocksource.h @@ -0,0 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __ASM_VDSOCLOCKSOURCE_H +#define __ASM_VDSOCLOCKSOURCE_H + +#define VDSO_ARCH_CLOCKMODES \ + VDSO_CLOCKMODE_ARCHTIMER + +#endif /* __ASM_VDSOCLOCKSOURCE_H */ diff --git a/arch/arm/include/asm/vdso/cp15.h b/arch/arm/include/asm/vdso/cp15.h new file mode 100644 index 000000000000..bed16fa1865e --- /dev/null +++ b/arch/arm/include/asm/vdso/cp15.h @@ -0,0 +1,38 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (C) 2020 ARM Ltd. + */ +#ifndef __ASM_VDSO_CP15_H +#define __ASM_VDSO_CP15_H + +#ifndef __ASSEMBLY__ + +#ifdef CONFIG_CPU_CP15 + +#include <linux/stringify.h> + +#define __ACCESS_CP15(CRn, Op1, CRm, Op2) \ + "mrc", "mcr", __stringify(p15, Op1, %0, CRn, CRm, Op2), u32 +#define __ACCESS_CP15_64(Op1, CRm) \ + "mrrc", "mcrr", __stringify(p15, Op1, %Q0, %R0, CRm), u64 + +#define __read_sysreg(r, w, c, t) ({ \ + t __val; \ + asm volatile(r " " c : "=r" (__val)); \ + __val; \ +}) +#define read_sysreg(...) __read_sysreg(__VA_ARGS__) + +#define __write_sysreg(v, r, w, c, t) asm volatile(w " " c : : "r" ((t)(v))) +#define write_sysreg(v, ...) __write_sysreg(v, __VA_ARGS__) + +#define BPIALL __ACCESS_CP15(c7, 0, c5, 6) +#define ICIALLU __ACCESS_CP15(c7, 0, c5, 0) + +#define CNTVCT __ACCESS_CP15_64(1, c14) + +#endif /* CONFIG_CPU_CP15 */ + +#endif /* __ASSEMBLY__ */ + +#endif /* __ASM_VDSO_CP15_H */ diff --git a/arch/arm/include/asm/vdso/gettimeofday.h b/arch/arm/include/asm/vdso/gettimeofday.h index fe6e1f65932d..36dc18553ed8 100644 --- a/arch/arm/include/asm/vdso/gettimeofday.h +++ b/arch/arm/include/asm/vdso/gettimeofday.h @@ -7,9 +7,9 @@ #ifndef __ASSEMBLY__ -#include <asm/barrier.h> -#include <asm/cp15.h> +#include <asm/errno.h> #include <asm/unistd.h> +#include <asm/vdso/cp15.h> #include <uapi/linux/time.h> #define VDSO_HAS_CLOCK_GETRES 1 @@ -106,20 +106,32 @@ static __always_inline int clock_getres32_fallback( return ret; } +static inline bool arm_vdso_hres_capable(void) +{ + return IS_ENABLED(CONFIG_ARM_ARCH_TIMER); +} +#define __arch_vdso_hres_capable arm_vdso_hres_capable + static __always_inline u64 __arch_get_hw_counter(int clock_mode) { #ifdef CONFIG_ARM_ARCH_TIMER u64 cycle_now; - if (!clock_mode) - return -EINVAL; + /* + * Core checks for mode already, so this raced against a concurrent + * update. Return something. Core will do another round and then + * see the mode change and fallback to the syscall. + */ + if (clock_mode == VDSO_CLOCKMODE_NONE) + return 0; isb(); cycle_now = read_sysreg(CNTVCT); return cycle_now; #else - return -EINVAL; /* use fallback */ + /* Make GCC happy. This is compiled out anyway */ + return 0; #endif } diff --git a/arch/arm/include/asm/vdso/processor.h b/arch/arm/include/asm/vdso/processor.h new file mode 100644 index 000000000000..45efb3ff511c --- /dev/null +++ b/arch/arm/include/asm/vdso/processor.h @@ -0,0 +1,22 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (C) 2020 ARM Ltd. + */ +#ifndef __ASM_VDSO_PROCESSOR_H +#define __ASM_VDSO_PROCESSOR_H + +#ifndef __ASSEMBLY__ + +#if __LINUX_ARM_ARCH__ == 6 || defined(CONFIG_ARM_ERRATA_754327) +#define cpu_relax() \ + do { \ + smp_mb(); \ + __asm__ __volatile__("nop; nop; nop; nop; nop; nop; nop; nop; nop; nop;"); \ + } while (0) +#else +#define cpu_relax() barrier() +#endif + +#endif /* __ASSEMBLY__ */ + +#endif /* __ASM_VDSO_PROCESSOR_H */ diff --git a/arch/arm/include/asm/vdso/vsyscall.h b/arch/arm/include/asm/vdso/vsyscall.h index cff87d8d30da..47e41ae8ccd0 100644 --- a/arch/arm/include/asm/vdso/vsyscall.h +++ b/arch/arm/include/asm/vdso/vsyscall.h @@ -11,18 +11,6 @@ extern struct vdso_data *vdso_data; extern bool cntvct_ok; -static __always_inline -bool tk_is_cntvct(const struct timekeeper *tk) -{ - if (!IS_ENABLED(CONFIG_ARM_ARCH_TIMER)) - return false; - - if (!tk->tkr_mono.clock->archdata.vdso_direct) - return false; - - return true; -} - /* * Update the vDSO data page to keep in sync with kernel timekeeping. */ @@ -34,29 +22,6 @@ struct vdso_data *__arm_get_k_vdso_data(void) #define __arch_get_k_vdso_data __arm_get_k_vdso_data static __always_inline -bool __arm_update_vdso_data(void) -{ - return cntvct_ok; -} -#define __arch_update_vdso_data __arm_update_vdso_data - -static __always_inline -int __arm_get_clock_mode(struct timekeeper *tk) -{ - u32 __tk_is_cntvct = tk_is_cntvct(tk); - - return __tk_is_cntvct; -} -#define __arch_get_clock_mode __arm_get_clock_mode - -static __always_inline -int __arm_use_vsyscall(struct vdso_data *vdata) -{ - return vdata[CS_HRES_COARSE].clock_mode; -} -#define __arch_use_vsyscall __arm_use_vsyscall - -static __always_inline void __arm_sync_vdso_data(struct vdso_data *vdata) { flush_dcache_page(virt_to_page(vdata)); diff --git a/arch/arm/kernel/reboot.c b/arch/arm/kernel/reboot.c index bb18ed0539f4..0ce388f15422 100644 --- a/arch/arm/kernel/reboot.c +++ b/arch/arm/kernel/reboot.c @@ -88,11 +88,11 @@ void soft_restart(unsigned long addr) * to execute e.g. a RAM-based pin loop is not sufficient. This allows the * kexec'd kernel to use any and all RAM as it sees fit, without having to * avoid any code or data used by any SW CPU pin loop. The CPU hotplug - * functionality embodied in disable_nonboot_cpus() to achieve this. + * functionality embodied in smp_shutdown_nonboot_cpus() to achieve this. */ void machine_shutdown(void) { - disable_nonboot_cpus(); + smp_shutdown_nonboot_cpus(reboot_cpu); } /* diff --git a/arch/arm/kernel/vdso.c b/arch/arm/kernel/vdso.c index c89ac1b9d28b..e0330a25e1c6 100644 --- a/arch/arm/kernel/vdso.c +++ b/arch/arm/kernel/vdso.c @@ -95,6 +95,8 @@ static bool __init cntvct_functional(void) */ np = of_find_compatible_node(NULL, NULL, "arm,armv7-timer"); if (!np) + np = of_find_compatible_node(NULL, NULL, "arm,armv8-timer"); + if (!np) goto out_put; if (of_property_read_bool(np, "arm,cpu-registers-not-fw-configured")) diff --git a/arch/arm/lib/copy_from_user.S b/arch/arm/lib/copy_from_user.S index 95b2e1ce559c..f8016e3db65d 100644 --- a/arch/arm/lib/copy_from_user.S +++ b/arch/arm/lib/copy_from_user.S @@ -118,7 +118,7 @@ ENTRY(arm_copy_from_user) ENDPROC(arm_copy_from_user) - .pushsection .fixup,"ax" + .pushsection .text.fixup,"ax" .align 0 copy_abort_preamble ldmfd sp!, {r1, r2, r3} diff --git a/arch/arm/mach-imx/Makefile b/arch/arm/mach-imx/Makefile index 35ff620537e6..03506ce46149 100644 --- a/arch/arm/mach-imx/Makefile +++ b/arch/arm/mach-imx/Makefile @@ -91,6 +91,8 @@ AFLAGS_suspend-imx6.o :=-Wa,-march=armv7-a obj-$(CONFIG_SOC_IMX6) += suspend-imx6.o obj-$(CONFIG_SOC_IMX53) += suspend-imx53.o endif +AFLAGS_resume-imx6.o :=-Wa,-march=armv7-a +obj-$(CONFIG_SOC_IMX6) += resume-imx6.o obj-$(CONFIG_SOC_IMX6) += pm-imx6.o obj-$(CONFIG_SOC_IMX1) += mach-imx1.o diff --git a/arch/arm/mach-imx/common.h b/arch/arm/mach-imx/common.h index 912aeceb4ff8..5aa5796cff0e 100644 --- a/arch/arm/mach-imx/common.h +++ b/arch/arm/mach-imx/common.h @@ -109,17 +109,17 @@ void imx_cpu_die(unsigned int cpu); int imx_cpu_kill(unsigned int cpu); #ifdef CONFIG_SUSPEND -void v7_cpu_resume(void); void imx53_suspend(void __iomem *ocram_vbase); extern const u32 imx53_suspend_sz; void imx6_suspend(void __iomem *ocram_vbase); #else -static inline void v7_cpu_resume(void) {} static inline void imx53_suspend(void __iomem *ocram_vbase) {} static const u32 imx53_suspend_sz; static inline void imx6_suspend(void __iomem *ocram_vbase) {} #endif +void v7_cpu_resume(void); + void imx6_pm_ccm_init(const char *ccm_compat); void imx6q_pm_init(void); void imx6dl_pm_init(void); diff --git a/arch/arm/mach-imx/resume-imx6.S b/arch/arm/mach-imx/resume-imx6.S new file mode 100644 index 000000000000..5bd1ba7ef15b --- /dev/null +++ b/arch/arm/mach-imx/resume-imx6.S @@ -0,0 +1,24 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Copyright 2014 Freescale Semiconductor, Inc. + */ + +#include <linux/linkage.h> +#include <asm/assembler.h> +#include <asm/asm-offsets.h> +#include <asm/hardware/cache-l2x0.h> +#include "hardware.h" + +/* + * The following code must assume it is running from physical address + * where absolute virtual addresses to the data section have to be + * turned into relative ones. + */ + +ENTRY(v7_cpu_resume) + bl v7_invalidate_l1 +#ifdef CONFIG_CACHE_L2X0 + bl l2c310_early_resume +#endif + b cpu_resume +ENDPROC(v7_cpu_resume) diff --git a/arch/arm/mach-imx/suspend-imx6.S b/arch/arm/mach-imx/suspend-imx6.S index 062391ff13da..1eabf2d2834b 100644 --- a/arch/arm/mach-imx/suspend-imx6.S +++ b/arch/arm/mach-imx/suspend-imx6.S @@ -327,17 +327,3 @@ resume: ret lr ENDPROC(imx6_suspend) - -/* - * The following code must assume it is running from physical address - * where absolute virtual addresses to the data section have to be - * turned into relative ones. - */ - -ENTRY(v7_cpu_resume) - bl v7_invalidate_l1 -#ifdef CONFIG_CACHE_L2X0 - bl l2c310_early_resume -#endif - b cpu_resume -ENDPROC(v7_cpu_resume) diff --git a/arch/arm/mach-meson/Kconfig b/arch/arm/mach-meson/Kconfig index 01f0f4b765e0..75034fe197e3 100644 --- a/arch/arm/mach-meson/Kconfig +++ b/arch/arm/mach-meson/Kconfig @@ -9,7 +9,6 @@ menuconfig ARCH_MESON select CACHE_L2X0 select PINCTRL select PINCTRL_MESON - select COMMON_CLK select HAVE_ARM_SCU if SMP select HAVE_ARM_TWD if SMP diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile index e1135b9d67c6..5017a3be0ff0 100644 --- a/arch/arm/mach-omap2/Makefile +++ b/arch/arm/mach-omap2/Makefile @@ -16,7 +16,7 @@ hwmod-common = omap_hwmod.o omap_hwmod_reset.o \ clock-common = clock.o secure-common = omap-smc.o omap-secure.o -obj-$(CONFIG_ARCH_OMAP2) += $(omap-2-3-common) $(hwmod-common) $(secure-common) +obj-$(CONFIG_ARCH_OMAP2) += $(omap-2-3-common) $(hwmod-common) obj-$(CONFIG_ARCH_OMAP3) += $(omap-2-3-common) $(hwmod-common) $(secure-common) obj-$(CONFIG_ARCH_OMAP4) += $(hwmod-common) $(secure-common) obj-$(CONFIG_SOC_AM33XX) += $(hwmod-common) $(secure-common) diff --git a/arch/arm/mach-omap2/io.c b/arch/arm/mach-omap2/io.c index f28047233665..27608d1026cb 100644 --- a/arch/arm/mach-omap2/io.c +++ b/arch/arm/mach-omap2/io.c @@ -431,7 +431,6 @@ void __init omap2420_init_early(void) omap_hwmod_init_postsetup(); omap_clk_soc_init = omap2420_dt_clk_init; rate_table = omap2420_rate_table; - omap_secure_init(); } void __init omap2420_init_late(void) @@ -456,7 +455,6 @@ void __init omap2430_init_early(void) omap_hwmod_init_postsetup(); omap_clk_soc_init = omap2430_dt_clk_init; rate_table = omap2430_rate_table; - omap_secure_init(); } void __init omap2430_init_late(void) diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig index 0b30e884e088..6e41c4b62607 100644 --- a/arch/arm64/Kconfig +++ b/arch/arm64/Kconfig @@ -9,7 +9,6 @@ config ARM64 select ACPI_MCFG if (ACPI && PCI) select ACPI_SPCR_TABLE if ACPI select ACPI_PPTT if ACPI - select ARCH_CLOCKSOURCE_DATA select ARCH_HAS_DEBUG_VIRTUAL select ARCH_HAS_DEVMEM_IS_ALLOWED select ARCH_HAS_DMA_PREP_COHERENT @@ -118,6 +117,7 @@ config ARM64 select HAVE_ALIGNED_STRUCT_PAGE if SLUB select HAVE_ARCH_AUDITSYSCALL select HAVE_ARCH_BITREVERSE + select HAVE_ARCH_COMPILER_H select HAVE_ARCH_HUGE_VMAP select HAVE_ARCH_JUMP_LABEL select HAVE_ARCH_JUMP_LABEL_RELATIVE @@ -281,6 +281,9 @@ config ZONE_DMA32 config ARCH_ENABLE_MEMORY_HOTPLUG def_bool y +config ARCH_ENABLE_MEMORY_HOTREMOVE + def_bool y + config SMP def_bool y @@ -952,11 +955,11 @@ config HOTPLUG_CPU # Common NUMA Features config NUMA - bool "Numa Memory Allocation and Scheduler Support" + bool "NUMA Memory Allocation and Scheduler Support" select ACPI_NUMA if ACPI select OF_NUMA help - Enable NUMA (Non Uniform Memory Access) support. + Enable NUMA (Non-Uniform Memory Access) support. The kernel will try to allocate memory used by a CPU on the local memory of the CPU and add some more @@ -1498,6 +1501,9 @@ config ARM64_PTR_AUTH bool "Enable support for pointer authentication" default y depends on !KVM || ARM64_VHE + depends on (CC_HAS_SIGN_RETURN_ADDRESS || CC_HAS_BRANCH_PROT_PAC_RET) && AS_HAS_PAC + depends on CC_IS_GCC || (CC_IS_CLANG && AS_HAS_CFI_NEGATE_RA_STATE) + depends on (!FUNCTION_GRAPH_TRACER || DYNAMIC_FTRACE_WITH_REGS) help Pointer authentication (part of the ARMv8.3 Extensions) provides instructions for signing and authenticating pointers against secret @@ -1505,16 +1511,72 @@ config ARM64_PTR_AUTH and other attacks. This option enables these instructions at EL0 (i.e. for userspace). - Choosing this option will cause the kernel to initialise secret keys for each process at exec() time, with these keys being context-switched along with the process. + If the compiler supports the -mbranch-protection or + -msign-return-address flag (e.g. GCC 7 or later), then this option + will also cause the kernel itself to be compiled with return address + protection. In this case, and if the target hardware is known to + support pointer authentication, then CONFIG_STACKPROTECTOR can be + disabled with minimal loss of protection. + The feature is detected at runtime. If the feature is not present in hardware it will not be advertised to userspace/KVM guest nor will it be enabled. However, KVM guest also require VHE mode and hence CONFIG_ARM64_VHE=y option to use this feature. + If the feature is present on the boot CPU but not on a late CPU, then + the late CPU will be parked. Also, if the boot CPU does not have + address auth and the late CPU has then the late CPU will still boot + but with the feature disabled. On such a system, this option should + not be selected. + + This feature works with FUNCTION_GRAPH_TRACER option only if + DYNAMIC_FTRACE_WITH_REGS is enabled. + +config CC_HAS_BRANCH_PROT_PAC_RET + # GCC 9 or later, clang 8 or later + def_bool $(cc-option,-mbranch-protection=pac-ret+leaf) + +config CC_HAS_SIGN_RETURN_ADDRESS + # GCC 7, 8 + def_bool $(cc-option,-msign-return-address=all) + +config AS_HAS_PAC + def_bool $(as-option,-Wa$(comma)-march=armv8.3-a) + +config AS_HAS_CFI_NEGATE_RA_STATE + def_bool $(as-instr,.cfi_startproc\n.cfi_negate_ra_state\n.cfi_endproc\n) + +endmenu + +menu "ARMv8.4 architectural features" + +config ARM64_AMU_EXTN + bool "Enable support for the Activity Monitors Unit CPU extension" + default y + help + The activity monitors extension is an optional extension introduced + by the ARMv8.4 CPU architecture. This enables support for version 1 + of the activity monitors architecture, AMUv1. + + To enable the use of this extension on CPUs that implement it, say Y. + + Note that for architectural reasons, firmware _must_ implement AMU + support when running on CPUs that present the activity monitors + extension. The required support is present in: + * Version 1.5 and later of the ARM Trusted Firmware + + For kernels that have this configuration enabled but boot with broken + firmware, you may need to say N here until the firmware is fixed. + Otherwise you may experience firmware panics or lockups when + accessing the counter registers. Even if you are not observing these + symptoms, the values returned by the register reads might not + correctly reflect reality. Most commonly, the value read will be 0, + indicating that the counter is not enabled. + endmenu menu "ARMv8.5 architectural features" diff --git a/arch/arm64/Makefile b/arch/arm64/Makefile index dca1a97751ab..f15f92ba53e6 100644 --- a/arch/arm64/Makefile +++ b/arch/arm64/Makefile @@ -65,6 +65,17 @@ stack_protector_prepare: prepare0 include/generated/asm-offsets.h)) endif +ifeq ($(CONFIG_ARM64_PTR_AUTH),y) +branch-prot-flags-$(CONFIG_CC_HAS_SIGN_RETURN_ADDRESS) := -msign-return-address=all +branch-prot-flags-$(CONFIG_CC_HAS_BRANCH_PROT_PAC_RET) := -mbranch-protection=pac-ret+leaf +# -march=armv8.3-a enables the non-nops instructions for PAC, to avoid the +# compiler to generate them and consequently to break the single image contract +# we pass it only to the assembler. This option is utilized only in case of non +# integrated assemblers. +branch-prot-flags-$(CONFIG_AS_HAS_PAC) += -Wa,-march=armv8.3-a +KBUILD_CFLAGS += $(branch-prot-flags-y) +endif + ifeq ($(CONFIG_CPU_BIG_ENDIAN), y) KBUILD_CPPFLAGS += -mbig-endian CHECKFLAGS += -D__AARCH64EB__ diff --git a/arch/arm64/boot/dts/amlogic/meson-gxbb-kii-pro.dts b/arch/arm64/boot/dts/amlogic/meson-gxbb-kii-pro.dts index 2f1f829450a2..6c9cc45fb417 100644 --- a/arch/arm64/boot/dts/amlogic/meson-gxbb-kii-pro.dts +++ b/arch/arm64/boot/dts/amlogic/meson-gxbb-kii-pro.dts @@ -76,3 +76,7 @@ }; }; }; + +&ir { + linux,rc-map-name = "rc-videostrong-kii-pro"; +}; diff --git a/arch/arm64/boot/dts/amlogic/meson-gxm-khadas-vim2.dts b/arch/arm64/boot/dts/amlogic/meson-gxm-khadas-vim2.dts index f82f25c1a5f9..d5dc12878dfe 100644 --- a/arch/arm64/boot/dts/amlogic/meson-gxm-khadas-vim2.dts +++ b/arch/arm64/boot/dts/amlogic/meson-gxm-khadas-vim2.dts @@ -327,7 +327,7 @@ #size-cells = <0>; bus-width = <4>; - max-frequency = <50000000>; + max-frequency = <60000000>; non-removable; disable-wp; diff --git a/arch/arm64/boot/dts/amlogic/meson-sm1-sei610.dts b/arch/arm64/boot/dts/amlogic/meson-sm1-sei610.dts index a8bb3fa9fec9..cb1b48f5b8b1 100644 --- a/arch/arm64/boot/dts/amlogic/meson-sm1-sei610.dts +++ b/arch/arm64/boot/dts/amlogic/meson-sm1-sei610.dts @@ -593,6 +593,7 @@ compatible = "brcm,bcm43438-bt"; interrupt-parent = <&gpio_intc>; interrupts = <95 IRQ_TYPE_LEVEL_HIGH>; + interrupt-names = "host-wakeup"; shutdown-gpios = <&gpio GPIOX_17 GPIO_ACTIVE_HIGH>; max-speed = <2000000>; clocks = <&wifi32k>; diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi index 0bf375ec959b..55b71bb4baf8 100644 --- a/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi +++ b/arch/arm64/boot/dts/freescale/fsl-ls1028a.dtsi @@ -53,7 +53,7 @@ * PSCI node is not added default, U-boot will add missing * parts if it determines to use PSCI. */ - entry-method = "arm,psci"; + entry-method = "psci"; CPU_PW20: cpu-pw20 { compatible = "arm,idle-state"; diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1043-post.dtsi b/arch/arm64/boot/dts/freescale/fsl-ls1043-post.dtsi index 6082ae022136..d237162a8744 100644 --- a/arch/arm64/boot/dts/freescale/fsl-ls1043-post.dtsi +++ b/arch/arm64/boot/dts/freescale/fsl-ls1043-post.dtsi @@ -20,6 +20,8 @@ }; &fman0 { + fsl,erratum-a050385; + /* these aliases provide the FMan ports mapping */ enet0: ethernet@e0000 { }; diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1043a-rdb.dts b/arch/arm64/boot/dts/freescale/fsl-ls1043a-rdb.dts index 4223a2352d45..dde50c88f5e3 100644 --- a/arch/arm64/boot/dts/freescale/fsl-ls1043a-rdb.dts +++ b/arch/arm64/boot/dts/freescale/fsl-ls1043a-rdb.dts @@ -119,12 +119,12 @@ ethernet@e4000 { phy-handle = <&rgmii_phy1>; - phy-connection-type = "rgmii-txid"; + phy-connection-type = "rgmii-id"; }; ethernet@e6000 { phy-handle = <&rgmii_phy2>; - phy-connection-type = "rgmii-txid"; + phy-connection-type = "rgmii-id"; }; ethernet@e8000 { diff --git a/arch/arm64/boot/dts/freescale/fsl-ls1046a-rdb.dts b/arch/arm64/boot/dts/freescale/fsl-ls1046a-rdb.dts index dbc23d6cd3b4..d53ccc56bb63 100644 --- a/arch/arm64/boot/dts/freescale/fsl-ls1046a-rdb.dts +++ b/arch/arm64/boot/dts/freescale/fsl-ls1046a-rdb.dts @@ -131,12 +131,12 @@ &fman0 { ethernet@e4000 { phy-handle = <&rgmii_phy1>; - phy-connection-type = "rgmii"; + phy-connection-type = "rgmii-id"; }; ethernet@e6000 { phy-handle = <&rgmii_phy2>; - phy-connection-type = "rgmii"; + phy-connection-type = "rgmii-id"; }; ethernet@e8000 { diff --git a/arch/arm64/boot/dts/freescale/imx8qxp-mek.dts b/arch/arm64/boot/dts/freescale/imx8qxp-mek.dts index d3d26cca7d52..13460a360c6a 100644 --- a/arch/arm64/boot/dts/freescale/imx8qxp-mek.dts +++ b/arch/arm64/boot/dts/freescale/imx8qxp-mek.dts @@ -52,11 +52,6 @@ compatible = "ethernet-phy-ieee802.3-c22"; reg = <0>; }; - - ethphy1: ethernet-phy@1 { - compatible = "ethernet-phy-ieee802.3-c22"; - reg = <1>; - }; }; }; diff --git a/arch/arm64/boot/dts/intel/socfpga_agilex.dtsi b/arch/arm64/boot/dts/intel/socfpga_agilex.dtsi index e1d357eaad7c..d8c44d3ca15a 100644 --- a/arch/arm64/boot/dts/intel/socfpga_agilex.dtsi +++ b/arch/arm64/boot/dts/intel/socfpga_agilex.dtsi @@ -102,7 +102,7 @@ }; gmac0: ethernet@ff800000 { - compatible = "altr,socfpga-stmmac", "snps,dwmac-3.74a", "snps,dwmac"; + compatible = "altr,socfpga-stmmac-a10-s10", "snps,dwmac-3.74a", "snps,dwmac"; reg = <0xff800000 0x2000>; interrupts = <0 90 4>; interrupt-names = "macirq"; @@ -118,7 +118,7 @@ }; gmac1: ethernet@ff802000 { - compatible = "altr,socfpga-stmmac", "snps,dwmac-3.74a", "snps,dwmac"; + compatible = "altr,socfpga-stmmac-a10-s10", "snps,dwmac-3.74a", "snps,dwmac"; reg = <0xff802000 0x2000>; interrupts = <0 91 4>; interrupt-names = "macirq"; @@ -134,7 +134,7 @@ }; gmac2: ethernet@ff804000 { - compatible = "altr,socfpga-stmmac", "snps,dwmac-3.74a", "snps,dwmac"; + compatible = "altr,socfpga-stmmac-a10-s10", "snps,dwmac-3.74a", "snps,dwmac"; reg = <0xff804000 0x2000>; interrupts = <0 92 4>; interrupt-names = "macirq"; diff --git a/arch/arm64/boot/dts/sprd/sc9863a.dtsi b/arch/arm64/boot/dts/sprd/sc9863a.dtsi index cd80756c888d..2c590ca1d079 100644 --- a/arch/arm64/boot/dts/sprd/sc9863a.dtsi +++ b/arch/arm64/boot/dts/sprd/sc9863a.dtsi @@ -108,7 +108,7 @@ }; idle-states { - entry-method = "arm,psci"; + entry-method = "psci"; CORE_PD: core-pd { compatible = "arm,idle-state"; entry-latency-us = <4000>; diff --git a/arch/arm64/configs/defconfig b/arch/arm64/configs/defconfig index 905109f6814f..e7573289a66f 100644 --- a/arch/arm64/configs/defconfig +++ b/arch/arm64/configs/defconfig @@ -62,6 +62,7 @@ CONFIG_ARCH_ZX=y CONFIG_ARCH_ZYNQMP=y CONFIG_ARM64_VA_BITS_48=y CONFIG_SCHED_MC=y +CONFIG_SCHED_SMT=y CONFIG_NUMA=y CONFIG_SECCOMP=y CONFIG_KEXEC=y @@ -773,7 +774,7 @@ CONFIG_ARCH_R8A774A1=y CONFIG_ARCH_R8A774B1=y CONFIG_ARCH_R8A774C0=y CONFIG_ARCH_R8A7795=y -CONFIG_ARCH_R8A7796=y +CONFIG_ARCH_R8A77960=y CONFIG_ARCH_R8A77961=y CONFIG_ARCH_R8A77965=y CONFIG_ARCH_R8A77970=y diff --git a/arch/arm64/crypto/aes-ce.S b/arch/arm64/crypto/aes-ce.S index 45062553467f..1dc5bbbfeed2 100644 --- a/arch/arm64/crypto/aes-ce.S +++ b/arch/arm64/crypto/aes-ce.S @@ -9,8 +9,8 @@ #include <linux/linkage.h> #include <asm/assembler.h> -#define AES_ENTRY(func) SYM_FUNC_START(ce_ ## func) -#define AES_ENDPROC(func) SYM_FUNC_END(ce_ ## func) +#define AES_FUNC_START(func) SYM_FUNC_START(ce_ ## func) +#define AES_FUNC_END(func) SYM_FUNC_END(ce_ ## func) .arch armv8-a+crypto diff --git a/arch/arm64/crypto/aes-modes.S b/arch/arm64/crypto/aes-modes.S index 8a2faa42b57e..cf618d8f6cec 100644 --- a/arch/arm64/crypto/aes-modes.S +++ b/arch/arm64/crypto/aes-modes.S @@ -51,7 +51,7 @@ SYM_FUNC_END(aes_decrypt_block5x) * int blocks) */ -AES_ENTRY(aes_ecb_encrypt) +AES_FUNC_START(aes_ecb_encrypt) stp x29, x30, [sp, #-16]! mov x29, sp @@ -79,10 +79,10 @@ ST5( st1 {v4.16b}, [x0], #16 ) .Lecbencout: ldp x29, x30, [sp], #16 ret -AES_ENDPROC(aes_ecb_encrypt) +AES_FUNC_END(aes_ecb_encrypt) -AES_ENTRY(aes_ecb_decrypt) +AES_FUNC_START(aes_ecb_decrypt) stp x29, x30, [sp, #-16]! mov x29, sp @@ -110,7 +110,7 @@ ST5( st1 {v4.16b}, [x0], #16 ) .Lecbdecout: ldp x29, x30, [sp], #16 ret -AES_ENDPROC(aes_ecb_decrypt) +AES_FUNC_END(aes_ecb_decrypt) /* @@ -126,7 +126,7 @@ AES_ENDPROC(aes_ecb_decrypt) * u32 const rk2[]); */ -AES_ENTRY(aes_essiv_cbc_encrypt) +AES_FUNC_START(aes_essiv_cbc_encrypt) ld1 {v4.16b}, [x5] /* get iv */ mov w8, #14 /* AES-256: 14 rounds */ @@ -135,7 +135,7 @@ AES_ENTRY(aes_essiv_cbc_encrypt) enc_switch_key w3, x2, x6 b .Lcbcencloop4x -AES_ENTRY(aes_cbc_encrypt) +AES_FUNC_START(aes_cbc_encrypt) ld1 {v4.16b}, [x5] /* get iv */ enc_prepare w3, x2, x6 @@ -167,10 +167,10 @@ AES_ENTRY(aes_cbc_encrypt) .Lcbcencout: st1 {v4.16b}, [x5] /* return iv */ ret -AES_ENDPROC(aes_cbc_encrypt) -AES_ENDPROC(aes_essiv_cbc_encrypt) +AES_FUNC_END(aes_cbc_encrypt) +AES_FUNC_END(aes_essiv_cbc_encrypt) -AES_ENTRY(aes_essiv_cbc_decrypt) +AES_FUNC_START(aes_essiv_cbc_decrypt) stp x29, x30, [sp, #-16]! mov x29, sp @@ -181,7 +181,7 @@ AES_ENTRY(aes_essiv_cbc_decrypt) encrypt_block cbciv, w8, x6, x7, w9 b .Lessivcbcdecstart -AES_ENTRY(aes_cbc_decrypt) +AES_FUNC_START(aes_cbc_decrypt) stp x29, x30, [sp, #-16]! mov x29, sp @@ -238,8 +238,8 @@ ST5( st1 {v4.16b}, [x0], #16 ) st1 {cbciv.16b}, [x5] /* return iv */ ldp x29, x30, [sp], #16 ret -AES_ENDPROC(aes_cbc_decrypt) -AES_ENDPROC(aes_essiv_cbc_decrypt) +AES_FUNC_END(aes_cbc_decrypt) +AES_FUNC_END(aes_essiv_cbc_decrypt) /* @@ -249,7 +249,7 @@ AES_ENDPROC(aes_essiv_cbc_decrypt) * int rounds, int bytes, u8 const iv[]) */ -AES_ENTRY(aes_cbc_cts_encrypt) +AES_FUNC_START(aes_cbc_cts_encrypt) adr_l x8, .Lcts_permute_table sub x4, x4, #16 add x9, x8, #32 @@ -276,9 +276,9 @@ AES_ENTRY(aes_cbc_cts_encrypt) st1 {v0.16b}, [x4] /* overlapping stores */ st1 {v1.16b}, [x0] ret -AES_ENDPROC(aes_cbc_cts_encrypt) +AES_FUNC_END(aes_cbc_cts_encrypt) -AES_ENTRY(aes_cbc_cts_decrypt) +AES_FUNC_START(aes_cbc_cts_decrypt) adr_l x8, .Lcts_permute_table sub x4, x4, #16 add x9, x8, #32 @@ -305,7 +305,7 @@ AES_ENTRY(aes_cbc_cts_decrypt) st1 {v2.16b}, [x4] /* overlapping stores */ st1 {v0.16b}, [x0] ret -AES_ENDPROC(aes_cbc_cts_decrypt) +AES_FUNC_END(aes_cbc_cts_decrypt) .section ".rodata", "a" .align 6 @@ -324,7 +324,7 @@ AES_ENDPROC(aes_cbc_cts_decrypt) * int blocks, u8 ctr[]) */ -AES_ENTRY(aes_ctr_encrypt) +AES_FUNC_START(aes_ctr_encrypt) stp x29, x30, [sp, #-16]! mov x29, sp @@ -409,7 +409,7 @@ ST5( st1 {v4.16b}, [x0], #16 ) rev x7, x7 ins vctr.d[0], x7 b .Lctrcarrydone -AES_ENDPROC(aes_ctr_encrypt) +AES_FUNC_END(aes_ctr_encrypt) /* @@ -433,7 +433,7 @@ AES_ENDPROC(aes_ctr_encrypt) uzp1 xtsmask.4s, xtsmask.4s, \tmp\().4s .endm -AES_ENTRY(aes_xts_encrypt) +AES_FUNC_START(aes_xts_encrypt) stp x29, x30, [sp, #-16]! mov x29, sp @@ -518,9 +518,9 @@ AES_ENTRY(aes_xts_encrypt) st1 {v2.16b}, [x4] /* overlapping stores */ mov w4, wzr b .Lxtsencctsout -AES_ENDPROC(aes_xts_encrypt) +AES_FUNC_END(aes_xts_encrypt) -AES_ENTRY(aes_xts_decrypt) +AES_FUNC_START(aes_xts_decrypt) stp x29, x30, [sp, #-16]! mov x29, sp @@ -612,13 +612,13 @@ AES_ENTRY(aes_xts_decrypt) st1 {v2.16b}, [x4] /* overlapping stores */ mov w4, wzr b .Lxtsdecctsout -AES_ENDPROC(aes_xts_decrypt) +AES_FUNC_END(aes_xts_decrypt) /* * aes_mac_update(u8 const in[], u32 const rk[], int rounds, * int blocks, u8 dg[], int enc_before, int enc_after) */ -AES_ENTRY(aes_mac_update) +AES_FUNC_START(aes_mac_update) frame_push 6 mov x19, x0 @@ -676,4 +676,4 @@ AES_ENTRY(aes_mac_update) ld1 {v0.16b}, [x23] /* get dg */ enc_prepare w21, x20, x0 b .Lmacloop4x -AES_ENDPROC(aes_mac_update) +AES_FUNC_END(aes_mac_update) diff --git a/arch/arm64/crypto/aes-neon.S b/arch/arm64/crypto/aes-neon.S index 247d34ddaab0..e47d3ec2cfb4 100644 --- a/arch/arm64/crypto/aes-neon.S +++ b/arch/arm64/crypto/aes-neon.S @@ -8,8 +8,8 @@ #include <linux/linkage.h> #include <asm/assembler.h> -#define AES_ENTRY(func) SYM_FUNC_START(neon_ ## func) -#define AES_ENDPROC(func) SYM_FUNC_END(neon_ ## func) +#define AES_FUNC_START(func) SYM_FUNC_START(neon_ ## func) +#define AES_FUNC_END(func) SYM_FUNC_END(neon_ ## func) xtsmask .req v7 cbciv .req v7 diff --git a/arch/arm64/crypto/chacha-neon-glue.c b/arch/arm64/crypto/chacha-neon-glue.c index c1f9660d104c..37ca3e889848 100644 --- a/arch/arm64/crypto/chacha-neon-glue.c +++ b/arch/arm64/crypto/chacha-neon-glue.c @@ -55,10 +55,10 @@ static void chacha_doneon(u32 *state, u8 *dst, const u8 *src, break; } chacha_4block_xor_neon(state, dst, src, nrounds, l); - bytes -= CHACHA_BLOCK_SIZE * 5; - src += CHACHA_BLOCK_SIZE * 5; - dst += CHACHA_BLOCK_SIZE * 5; - state[12] += 5; + bytes -= l; + src += l; + dst += l; + state[12] += DIV_ROUND_UP(l, CHACHA_BLOCK_SIZE); } } diff --git a/arch/arm64/crypto/ghash-ce-core.S b/arch/arm64/crypto/ghash-ce-core.S index 084c6a30b03a..6b958dcdf136 100644 --- a/arch/arm64/crypto/ghash-ce-core.S +++ b/arch/arm64/crypto/ghash-ce-core.S @@ -587,20 +587,20 @@ CPU_LE( rev w8, w8 ) * struct ghash_key const *k, u64 dg[], u8 ctr[], * int rounds, u8 tag) */ -ENTRY(pmull_gcm_encrypt) +SYM_FUNC_START(pmull_gcm_encrypt) pmull_gcm_do_crypt 1 -ENDPROC(pmull_gcm_encrypt) +SYM_FUNC_END(pmull_gcm_encrypt) /* * void pmull_gcm_decrypt(int blocks, u8 dst[], const u8 src[], * struct ghash_key const *k, u64 dg[], u8 ctr[], * int rounds, u8 tag) */ -ENTRY(pmull_gcm_decrypt) +SYM_FUNC_START(pmull_gcm_decrypt) pmull_gcm_do_crypt 0 -ENDPROC(pmull_gcm_decrypt) +SYM_FUNC_END(pmull_gcm_decrypt) -pmull_gcm_ghash_4x: +SYM_FUNC_START_LOCAL(pmull_gcm_ghash_4x) movi MASK.16b, #0xe1 shl MASK.2d, MASK.2d, #57 @@ -681,9 +681,9 @@ pmull_gcm_ghash_4x: eor XL.16b, XL.16b, T2.16b ret -ENDPROC(pmull_gcm_ghash_4x) +SYM_FUNC_END(pmull_gcm_ghash_4x) -pmull_gcm_enc_4x: +SYM_FUNC_START_LOCAL(pmull_gcm_enc_4x) ld1 {KS0.16b}, [x5] // load upper counter sub w10, w8, #4 sub w11, w8, #3 @@ -746,7 +746,7 @@ pmull_gcm_enc_4x: eor INP3.16b, INP3.16b, KS3.16b ret -ENDPROC(pmull_gcm_enc_4x) +SYM_FUNC_END(pmull_gcm_enc_4x) .section ".rodata", "a" .align 6 diff --git a/arch/arm64/include/asm/alternative.h b/arch/arm64/include/asm/alternative.h index 324e7d5ab37e..5e5dc05d63a0 100644 --- a/arch/arm64/include/asm/alternative.h +++ b/arch/arm64/include/asm/alternative.h @@ -221,7 +221,7 @@ alternative_endif .macro user_alt, label, oldinstr, newinstr, cond 9999: alternative_insn "\oldinstr", "\newinstr", \cond - _ASM_EXTABLE 9999b, \label + _asm_extable 9999b, \label .endm /* diff --git a/arch/arm64/include/asm/asm_pointer_auth.h b/arch/arm64/include/asm/asm_pointer_auth.h new file mode 100644 index 000000000000..ce2a8486992b --- /dev/null +++ b/arch/arm64/include/asm/asm_pointer_auth.h @@ -0,0 +1,65 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __ASM_ASM_POINTER_AUTH_H +#define __ASM_ASM_POINTER_AUTH_H + +#include <asm/alternative.h> +#include <asm/asm-offsets.h> +#include <asm/cpufeature.h> +#include <asm/sysreg.h> + +#ifdef CONFIG_ARM64_PTR_AUTH +/* + * thread.keys_user.ap* as offset exceeds the #imm offset range + * so use the base value of ldp as thread.keys_user and offset as + * thread.keys_user.ap*. + */ + .macro ptrauth_keys_install_user tsk, tmp1, tmp2, tmp3 + mov \tmp1, #THREAD_KEYS_USER + add \tmp1, \tsk, \tmp1 +alternative_if_not ARM64_HAS_ADDRESS_AUTH + b .Laddr_auth_skip_\@ +alternative_else_nop_endif + ldp \tmp2, \tmp3, [\tmp1, #PTRAUTH_USER_KEY_APIA] + msr_s SYS_APIAKEYLO_EL1, \tmp2 + msr_s SYS_APIAKEYHI_EL1, \tmp3 + ldp \tmp2, \tmp3, [\tmp1, #PTRAUTH_USER_KEY_APIB] + msr_s SYS_APIBKEYLO_EL1, \tmp2 + msr_s SYS_APIBKEYHI_EL1, \tmp3 + ldp \tmp2, \tmp3, [\tmp1, #PTRAUTH_USER_KEY_APDA] + msr_s SYS_APDAKEYLO_EL1, \tmp2 + msr_s SYS_APDAKEYHI_EL1, \tmp3 + ldp \tmp2, \tmp3, [\tmp1, #PTRAUTH_USER_KEY_APDB] + msr_s SYS_APDBKEYLO_EL1, \tmp2 + msr_s SYS_APDBKEYHI_EL1, \tmp3 +.Laddr_auth_skip_\@: +alternative_if ARM64_HAS_GENERIC_AUTH + ldp \tmp2, \tmp3, [\tmp1, #PTRAUTH_USER_KEY_APGA] + msr_s SYS_APGAKEYLO_EL1, \tmp2 + msr_s SYS_APGAKEYHI_EL1, \tmp3 +alternative_else_nop_endif + .endm + + .macro ptrauth_keys_install_kernel tsk, sync, tmp1, tmp2, tmp3 +alternative_if ARM64_HAS_ADDRESS_AUTH + mov \tmp1, #THREAD_KEYS_KERNEL + add \tmp1, \tsk, \tmp1 + ldp \tmp2, \tmp3, [\tmp1, #PTRAUTH_KERNEL_KEY_APIA] + msr_s SYS_APIAKEYLO_EL1, \tmp2 + msr_s SYS_APIAKEYHI_EL1, \tmp3 + .if \sync == 1 + isb + .endif +alternative_else_nop_endif + .endm + +#else /* CONFIG_ARM64_PTR_AUTH */ + + .macro ptrauth_keys_install_user tsk, tmp1, tmp2, tmp3 + .endm + + .macro ptrauth_keys_install_kernel tsk, sync, tmp1, tmp2, tmp3 + .endm + +#endif /* CONFIG_ARM64_PTR_AUTH */ + +#endif /* __ASM_ASM_POINTER_AUTH_H */ diff --git a/arch/arm64/include/asm/assembler.h b/arch/arm64/include/asm/assembler.h index aca337d79d12..0bff325117b4 100644 --- a/arch/arm64/include/asm/assembler.h +++ b/arch/arm64/include/asm/assembler.h @@ -257,12 +257,6 @@ alternative_endif .endm /* - * mmid - get context id from mm pointer (mm->context.id) - */ - .macro mmid, rd, rn - ldr \rd, [\rn, #MM_CONTEXT_ID] - .endm -/* * read_ctr - read CTR_EL0. If the system has mismatched register fields, * provide the system wide safe value from arm64_ftr_reg_ctrel0.sys_val */ @@ -431,6 +425,16 @@ USER(\label, ic ivau, \tmp2) // invalidate I line PoU .endm /* + * reset_amuserenr_el0 - reset AMUSERENR_EL0 if AMUv1 present + */ + .macro reset_amuserenr_el0, tmpreg + mrs \tmpreg, id_aa64pfr0_el1 // Check ID_AA64PFR0_EL1 + ubfx \tmpreg, \tmpreg, #ID_AA64PFR0_AMU_SHIFT, #4 + cbz \tmpreg, .Lskip_\@ // Skip if no AMU present + msr_s SYS_AMUSERENR_EL0, xzr // Disable AMU access from EL0 +.Lskip_\@: + .endm +/* * copy_page - copy src to dest using temp registers t1-t8 */ .macro copy_page dest:req src:req t1:req t2:req t3:req t4:req t5:req t6:req t7:req t8:req diff --git a/arch/arm64/include/asm/checksum.h b/arch/arm64/include/asm/checksum.h index 8d2a7de39744..b6f7bc6da5fb 100644 --- a/arch/arm64/include/asm/checksum.h +++ b/arch/arm64/include/asm/checksum.h @@ -5,7 +5,12 @@ #ifndef __ASM_CHECKSUM_H #define __ASM_CHECKSUM_H -#include <linux/types.h> +#include <linux/in6.h> + +#define _HAVE_ARCH_IPV6_CSUM +__sum16 csum_ipv6_magic(const struct in6_addr *saddr, + const struct in6_addr *daddr, + __u32 len, __u8 proto, __wsum sum); static inline __sum16 csum_fold(__wsum csum) { diff --git a/arch/arm64/include/asm/clocksource.h b/arch/arm64/include/asm/clocksource.h index 0ece64a26c8c..482185566b0c 100644 --- a/arch/arm64/include/asm/clocksource.h +++ b/arch/arm64/include/asm/clocksource.h @@ -2,8 +2,6 @@ #ifndef _ASM_CLOCKSOURCE_H #define _ASM_CLOCKSOURCE_H -struct arch_clocksource_data { - bool vdso_direct; /* Usable for direct VDSO access? */ -}; +#include <asm/vdso/clocksource.h> #endif diff --git a/arch/arm64/include/asm/compiler.h b/arch/arm64/include/asm/compiler.h new file mode 100644 index 000000000000..eece20d2c55f --- /dev/null +++ b/arch/arm64/include/asm/compiler.h @@ -0,0 +1,24 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __ASM_COMPILER_H +#define __ASM_COMPILER_H + +#if defined(CONFIG_ARM64_PTR_AUTH) + +/* + * The EL0/EL1 pointer bits used by a pointer authentication code. + * This is dependent on TBI0/TBI1 being enabled, or bits 63:56 would also apply. + */ +#define ptrauth_user_pac_mask() GENMASK_ULL(54, vabits_actual) +#define ptrauth_kernel_pac_mask() GENMASK_ULL(63, vabits_actual) + +/* Valid for EL0 TTBR0 and EL1 TTBR1 instruction pointers */ +#define ptrauth_clear_pac(ptr) \ + ((ptr & BIT_ULL(55)) ? (ptr | ptrauth_kernel_pac_mask()) : \ + (ptr & ~ptrauth_user_pac_mask())) + +#define __builtin_return_address(val) \ + (void *)(ptrauth_clear_pac((unsigned long)__builtin_return_address(val))) + +#endif /* CONFIG_ARM64_PTR_AUTH */ + +#endif /* __ASM_COMPILER_H */ diff --git a/arch/arm64/include/asm/cpu_ops.h b/arch/arm64/include/asm/cpu_ops.h index 86aabf1e0199..d28e8f37d3b4 100644 --- a/arch/arm64/include/asm/cpu_ops.h +++ b/arch/arm64/include/asm/cpu_ops.h @@ -55,12 +55,12 @@ struct cpu_operations { #endif }; -extern const struct cpu_operations *cpu_ops[NR_CPUS]; -int __init cpu_read_ops(int cpu); +int __init init_cpu_ops(int cpu); +extern const struct cpu_operations *get_cpu_ops(int cpu); -static inline void __init cpu_read_bootcpu_ops(void) +static inline void __init init_bootcpu_ops(void) { - cpu_read_ops(0); + init_cpu_ops(0); } #endif /* ifndef __ASM_CPU_OPS_H */ diff --git a/arch/arm64/include/asm/cpucaps.h b/arch/arm64/include/asm/cpucaps.h index 865e0253fc1e..8eb5a088ae65 100644 --- a/arch/arm64/include/asm/cpucaps.h +++ b/arch/arm64/include/asm/cpucaps.h @@ -58,7 +58,10 @@ #define ARM64_WORKAROUND_SPECULATIVE_AT_NVHE 48 #define ARM64_HAS_E0PD 49 #define ARM64_HAS_RNG 50 +#define ARM64_HAS_AMU_EXTN 51 +#define ARM64_HAS_ADDRESS_AUTH 52 +#define ARM64_HAS_GENERIC_AUTH 53 -#define ARM64_NCAPS 51 +#define ARM64_NCAPS 54 #endif /* __ASM_CPUCAPS_H */ diff --git a/arch/arm64/include/asm/cpufeature.h b/arch/arm64/include/asm/cpufeature.h index 2a746b99e937..afe08251ff95 100644 --- a/arch/arm64/include/asm/cpufeature.h +++ b/arch/arm64/include/asm/cpufeature.h @@ -208,6 +208,10 @@ extern struct arm64_ftr_reg arm64_ftr_reg_ctrel0; * In some non-typical cases either both (a) and (b), or neither, * should be permitted. This can be described by including neither * or both flags in the capability's type field. + * + * In case of a conflict, the CPU is prevented from booting. If the + * ARM64_CPUCAP_PANIC_ON_CONFLICT flag is specified for the capability, + * then a kernel panic is triggered. */ @@ -240,6 +244,8 @@ extern struct arm64_ftr_reg arm64_ftr_reg_ctrel0; #define ARM64_CPUCAP_PERMITTED_FOR_LATE_CPU ((u16)BIT(4)) /* Is it safe for a late CPU to miss this capability when system has it */ #define ARM64_CPUCAP_OPTIONAL_FOR_LATE_CPU ((u16)BIT(5)) +/* Panic when a conflict is detected */ +#define ARM64_CPUCAP_PANIC_ON_CONFLICT ((u16)BIT(6)) /* * CPU errata workarounds that need to be enabled at boot time if one or @@ -279,9 +285,20 @@ extern struct arm64_ftr_reg arm64_ftr_reg_ctrel0; /* * CPU feature used early in the boot based on the boot CPU. All secondary - * CPUs must match the state of the capability as detected by the boot CPU. + * CPUs must match the state of the capability as detected by the boot CPU. In + * case of a conflict, a kernel panic is triggered. + */ +#define ARM64_CPUCAP_STRICT_BOOT_CPU_FEATURE \ + (ARM64_CPUCAP_SCOPE_BOOT_CPU | ARM64_CPUCAP_PANIC_ON_CONFLICT) + +/* + * CPU feature used early in the boot based on the boot CPU. It is safe for a + * late CPU to have this feature even though the boot CPU hasn't enabled it, + * although the feature will not be used by Linux in this case. If the boot CPU + * has enabled this feature already, then every late CPU must have it. */ -#define ARM64_CPUCAP_STRICT_BOOT_CPU_FEATURE ARM64_CPUCAP_SCOPE_BOOT_CPU +#define ARM64_CPUCAP_BOOT_CPU_FEATURE \ + (ARM64_CPUCAP_SCOPE_BOOT_CPU | ARM64_CPUCAP_PERMITTED_FOR_LATE_CPU) struct arm64_cpu_capabilities { const char *desc; @@ -340,18 +357,6 @@ static inline int cpucap_default_scope(const struct arm64_cpu_capabilities *cap) return cap->type & ARM64_CPUCAP_SCOPE_MASK; } -static inline bool -cpucap_late_cpu_optional(const struct arm64_cpu_capabilities *cap) -{ - return !!(cap->type & ARM64_CPUCAP_OPTIONAL_FOR_LATE_CPU); -} - -static inline bool -cpucap_late_cpu_permitted(const struct arm64_cpu_capabilities *cap) -{ - return !!(cap->type & ARM64_CPUCAP_PERMITTED_FOR_LATE_CPU); -} - /* * Generic helper for handling capabilties with multiple (match,enable) pairs * of call backs, sharing the same capability bit. @@ -390,14 +395,16 @@ unsigned long cpu_get_elf_hwcap2(void); #define cpu_set_named_feature(name) cpu_set_feature(cpu_feature(name)) #define cpu_have_named_feature(name) cpu_have_feature(cpu_feature(name)) -/* System capability check for constant caps */ -static __always_inline bool __cpus_have_const_cap(int num) +static __always_inline bool system_capabilities_finalized(void) { - if (num >= ARM64_NCAPS) - return false; - return static_branch_unlikely(&cpu_hwcap_keys[num]); + return static_branch_likely(&arm64_const_caps_ready); } +/* + * Test for a capability with a runtime check. + * + * Before the capability is detected, this returns false. + */ static inline bool cpus_have_cap(unsigned int num) { if (num >= ARM64_NCAPS) @@ -405,14 +412,53 @@ static inline bool cpus_have_cap(unsigned int num) return test_bit(num, cpu_hwcaps); } +/* + * Test for a capability without a runtime check. + * + * Before capabilities are finalized, this returns false. + * After capabilities are finalized, this is patched to avoid a runtime check. + * + * @num must be a compile-time constant. + */ +static __always_inline bool __cpus_have_const_cap(int num) +{ + if (num >= ARM64_NCAPS) + return false; + return static_branch_unlikely(&cpu_hwcap_keys[num]); +} + +/* + * Test for a capability, possibly with a runtime check. + * + * Before capabilities are finalized, this behaves as cpus_have_cap(). + * After capabilities are finalized, this is patched to avoid a runtime check. + * + * @num must be a compile-time constant. + */ static __always_inline bool cpus_have_const_cap(int num) { - if (static_branch_likely(&arm64_const_caps_ready)) + if (system_capabilities_finalized()) return __cpus_have_const_cap(num); else return cpus_have_cap(num); } +/* + * Test for a capability without a runtime check. + * + * Before capabilities are finalized, this will BUG(). + * After capabilities are finalized, this is patched to avoid a runtime check. + * + * @num must be a compile-time constant. + */ +static __always_inline bool cpus_have_final_cap(int num) +{ + if (system_capabilities_finalized()) + return __cpus_have_const_cap(num); + else + BUG(); +} + static inline void cpus_set_cap(unsigned int num) { if (num >= ARM64_NCAPS) { @@ -447,6 +493,29 @@ cpuid_feature_extract_unsigned_field(u64 features, int field) return cpuid_feature_extract_unsigned_field_width(features, field, 4); } +/* + * Fields that identify the version of the Performance Monitors Extension do + * not follow the standard ID scheme. See ARM DDI 0487E.a page D13-2825, + * "Alternative ID scheme used for the Performance Monitors Extension version". + */ +static inline u64 __attribute_const__ +cpuid_feature_cap_perfmon_field(u64 features, int field, u64 cap) +{ + u64 val = cpuid_feature_extract_unsigned_field(features, field); + u64 mask = GENMASK_ULL(field + 3, field); + + /* Treat IMPLEMENTATION DEFINED functionality as unimplemented */ + if (val == 0xf) + val = 0; + + if (val > cap) { + features &= ~mask; + features |= (cap << field) & mask; + } + + return features; +} + static inline u64 arm64_ftr_mask(const struct arm64_ftr_bits *ftrp) { return (u64)GENMASK(ftrp->shift + ftrp->width - 1, ftrp->shift); @@ -590,15 +659,13 @@ static __always_inline bool system_supports_cnp(void) static inline bool system_supports_address_auth(void) { return IS_ENABLED(CONFIG_ARM64_PTR_AUTH) && - (cpus_have_const_cap(ARM64_HAS_ADDRESS_AUTH_ARCH) || - cpus_have_const_cap(ARM64_HAS_ADDRESS_AUTH_IMP_DEF)); + cpus_have_const_cap(ARM64_HAS_ADDRESS_AUTH); } static inline bool system_supports_generic_auth(void) { return IS_ENABLED(CONFIG_ARM64_PTR_AUTH) && - (cpus_have_const_cap(ARM64_HAS_GENERIC_AUTH_ARCH) || - cpus_have_const_cap(ARM64_HAS_GENERIC_AUTH_IMP_DEF)); + cpus_have_const_cap(ARM64_HAS_GENERIC_AUTH); } static inline bool system_uses_irq_prio_masking(void) @@ -613,11 +680,6 @@ static inline bool system_has_prio_mask_debugging(void) system_uses_irq_prio_masking(); } -static inline bool system_capabilities_finalized(void) -{ - return static_branch_likely(&arm64_const_caps_ready); -} - #define ARM64_BP_HARDEN_UNKNOWN -1 #define ARM64_BP_HARDEN_WA_NEEDED 0 #define ARM64_BP_HARDEN_NOT_REQUIRED 1 @@ -678,6 +740,11 @@ static inline bool cpu_has_hw_af(void) ID_AA64MMFR1_HADBS_SHIFT); } +#ifdef CONFIG_ARM64_AMU_EXTN +/* Check whether the cpu supports the Activity Monitors Unit (AMU) */ +extern bool cpu_has_amu_feat(int cpu); +#endif + #endif /* __ASSEMBLY__ */ #endif diff --git a/arch/arm64/include/asm/efi.h b/arch/arm64/include/asm/efi.h index 44531a69d32b..45e821222774 100644 --- a/arch/arm64/include/asm/efi.h +++ b/arch/arm64/include/asm/efi.h @@ -58,13 +58,6 @@ efi_status_t __efi_rt_asm_wrapper(void *, const char *, ...); /* arch specific definitions used by the stub code */ /* - * AArch64 requires the DTB to be 8-byte aligned in the first 512MiB from - * start of kernel and may not cross a 2MiB boundary. We set alignment to - * 2MiB so we know it won't cross a 2MiB boundary. - */ -#define EFI_FDT_ALIGN SZ_2M /* used by allocate_new_fdt_and_exit_boot() */ - -/* * In some configurations (e.g. VMAP_STACK && 64K pages), stacks built into the * kernel need greater alignment than we require the segments to be padded to. */ @@ -107,9 +100,6 @@ static inline void free_screen_info(struct screen_info *si) { } -/* redeclare as 'hidden' so the compiler will generate relative references */ -extern struct screen_info screen_info __attribute__((__visibility__("hidden"))); - static inline void efifb_setup_from_dmi(struct screen_info *si, const char *opt) { } diff --git a/arch/arm64/include/asm/esr.h b/arch/arm64/include/asm/esr.h index cb29253ae86b..6a395a7e6707 100644 --- a/arch/arm64/include/asm/esr.h +++ b/arch/arm64/include/asm/esr.h @@ -60,7 +60,7 @@ #define ESR_ELx_EC_BKPT32 (0x38) /* Unallocated EC: 0x39 */ #define ESR_ELx_EC_VECTOR32 (0x3A) /* EL2 only */ -/* Unallocted EC: 0x3B */ +/* Unallocated EC: 0x3B */ #define ESR_ELx_EC_BRK64 (0x3C) /* Unallocated EC: 0x3D - 0x3F */ #define ESR_ELx_EC_MAX (0x3F) diff --git a/arch/arm64/include/asm/futex.h b/arch/arm64/include/asm/futex.h index 6cc26a127819..97f6a63810ec 100644 --- a/arch/arm64/include/asm/futex.h +++ b/arch/arm64/include/asm/futex.h @@ -48,7 +48,8 @@ arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *_uaddr) int oldval = 0, ret, tmp; u32 __user *uaddr = __uaccess_mask_ptr(_uaddr); - pagefault_disable(); + if (!access_ok(_uaddr, sizeof(u32))) + return -EFAULT; switch (op) { case FUTEX_OP_SET: @@ -75,8 +76,6 @@ arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *_uaddr) ret = -ENOSYS; } - pagefault_enable(); - if (!ret) *oval = oldval; diff --git a/arch/arm64/include/asm/kvm_arm.h b/arch/arm64/include/asm/kvm_arm.h index 6e5d839f42b5..51c1d9918999 100644 --- a/arch/arm64/include/asm/kvm_arm.h +++ b/arch/arm64/include/asm/kvm_arm.h @@ -267,6 +267,7 @@ /* Hyp Coprocessor Trap Register */ #define CPTR_EL2_TCPAC (1 << 31) +#define CPTR_EL2_TAM (1 << 30) #define CPTR_EL2_TTA (1 << 20) #define CPTR_EL2_TFP (1 << CPTR_EL2_TFP_SHIFT) #define CPTR_EL2_TZ (1 << 8) diff --git a/arch/arm64/include/asm/kvm_asm.h b/arch/arm64/include/asm/kvm_asm.h index 44a243754c1b..7c7eeeaab9fa 100644 --- a/arch/arm64/include/asm/kvm_asm.h +++ b/arch/arm64/include/asm/kvm_asm.h @@ -36,6 +36,8 @@ */ #define KVM_VECTOR_PREAMBLE (2 * AARCH64_INSN_SIZE) +#define __SMCCC_WORKAROUND_1_SMC_SZ 36 + #ifndef __ASSEMBLY__ #include <linux/mm.h> @@ -75,6 +77,8 @@ extern void __vgic_v3_init_lrs(void); extern u32 __kvm_get_mdcr_el2(void); +extern char __smccc_workaround_1_smc[__SMCCC_WORKAROUND_1_SMC_SZ]; + /* Home-grown __this_cpu_{ptr,read} variants that always work at HYP */ #define __hyp_this_cpu_ptr(sym) \ ({ \ diff --git a/arch/arm64/include/asm/kvm_mmu.h b/arch/arm64/include/asm/kvm_mmu.h index 785762860c63..30b0e8d6b895 100644 --- a/arch/arm64/include/asm/kvm_mmu.h +++ b/arch/arm64/include/asm/kvm_mmu.h @@ -481,7 +481,7 @@ static inline void *kvm_get_hyp_vector(void) int slot = -1; if (cpus_have_const_cap(ARM64_HARDEN_BRANCH_PREDICTOR) && data->fn) { - vect = kern_hyp_va(kvm_ksym_ref(__bp_harden_hyp_vecs_start)); + vect = kern_hyp_va(kvm_ksym_ref(__bp_harden_hyp_vecs)); slot = data->hyp_vectors_slot; } @@ -510,14 +510,13 @@ static inline int kvm_map_vectors(void) * HBP + HEL2 -> use hardened vertors and use exec mapping */ if (cpus_have_const_cap(ARM64_HARDEN_BRANCH_PREDICTOR)) { - __kvm_bp_vect_base = kvm_ksym_ref(__bp_harden_hyp_vecs_start); + __kvm_bp_vect_base = kvm_ksym_ref(__bp_harden_hyp_vecs); __kvm_bp_vect_base = kern_hyp_va(__kvm_bp_vect_base); } if (cpus_have_const_cap(ARM64_HARDEN_EL2_VECTORS)) { - phys_addr_t vect_pa = __pa_symbol(__bp_harden_hyp_vecs_start); - unsigned long size = (__bp_harden_hyp_vecs_end - - __bp_harden_hyp_vecs_start); + phys_addr_t vect_pa = __pa_symbol(__bp_harden_hyp_vecs); + unsigned long size = __BP_HARDEN_HYP_VECS_SZ; /* * Always allocate a spare vector slot, as we don't diff --git a/arch/arm64/include/asm/memory.h b/arch/arm64/include/asm/memory.h index 4d94676e5a8b..2be67b232499 100644 --- a/arch/arm64/include/asm/memory.h +++ b/arch/arm64/include/asm/memory.h @@ -54,6 +54,7 @@ #define MODULES_VADDR (BPF_JIT_REGION_END) #define MODULES_VSIZE (SZ_128M) #define VMEMMAP_START (-VMEMMAP_SIZE - SZ_2M) +#define VMEMMAP_END (VMEMMAP_START + VMEMMAP_SIZE) #define PCI_IO_END (VMEMMAP_START - SZ_2M) #define PCI_IO_START (PCI_IO_END - PCI_IO_SIZE) #define FIXADDR_TOP (PCI_IO_START - SZ_2M) diff --git a/arch/arm64/include/asm/mmu.h b/arch/arm64/include/asm/mmu.h index e4d862420bb4..68140fdd89d6 100644 --- a/arch/arm64/include/asm/mmu.h +++ b/arch/arm64/include/asm/mmu.h @@ -13,6 +13,7 @@ #define TTBR_ASID_MASK (UL(0xffff) << 48) #define BP_HARDEN_EL2_SLOTS 4 +#define __BP_HARDEN_HYP_VECS_SZ (BP_HARDEN_EL2_SLOTS * SZ_2K) #ifndef __ASSEMBLY__ @@ -23,17 +24,15 @@ typedef struct { } mm_context_t; /* - * This macro is only used by the TLBI code, which cannot race with an - * ASID change and therefore doesn't need to reload the counter using - * atomic64_read. + * This macro is only used by the TLBI and low-level switch_mm() code, + * neither of which can race with an ASID change. We therefore don't + * need to reload the counter using atomic64_read(). */ #define ASID(mm) ((mm)->context.id.counter & 0xffff) -extern bool arm64_use_ng_mappings; - static inline bool arm64_kernel_unmapped_at_el0(void) { - return arm64_use_ng_mappings; + return cpus_have_const_cap(ARM64_UNMAP_KERNEL_AT_EL0); } typedef void (*bp_hardening_cb_t)(void); @@ -45,7 +44,8 @@ struct bp_hardening_data { #if (defined(CONFIG_HARDEN_BRANCH_PREDICTOR) || \ defined(CONFIG_HARDEN_EL2_VECTORS)) -extern char __bp_harden_hyp_vecs_start[], __bp_harden_hyp_vecs_end[]; + +extern char __bp_harden_hyp_vecs[]; extern atomic_t arm64_el2_vector_last_slot; #endif /* CONFIG_HARDEN_BRANCH_PREDICTOR || CONFIG_HARDEN_EL2_VECTORS */ diff --git a/arch/arm64/include/asm/mmu_context.h b/arch/arm64/include/asm/mmu_context.h index 3827ff4040a3..ab46187c6300 100644 --- a/arch/arm64/include/asm/mmu_context.h +++ b/arch/arm64/include/asm/mmu_context.h @@ -46,6 +46,8 @@ static inline void cpu_set_reserved_ttbr0(void) isb(); } +void cpu_do_switch_mm(phys_addr_t pgd_phys, struct mm_struct *mm); + static inline void cpu_switch_mm(pgd_t *pgd, struct mm_struct *mm) { BUG_ON(pgd == swapper_pg_dir); diff --git a/arch/arm64/include/asm/page.h b/arch/arm64/include/asm/page.h index d39ddb258a04..75d6cd23a679 100644 --- a/arch/arm64/include/asm/page.h +++ b/arch/arm64/include/asm/page.h @@ -21,6 +21,10 @@ extern void __cpu_copy_user_page(void *to, const void *from, extern void copy_page(void *to, const void *from); extern void clear_page(void *to); +#define __alloc_zeroed_user_highpage(movableflags, vma, vaddr) \ + alloc_page_vma(GFP_HIGHUSER | __GFP_ZERO | movableflags, vma, vaddr) +#define __HAVE_ARCH_ALLOC_ZEROED_USER_HIGHPAGE + #define clear_user_page(addr,vaddr,pg) __cpu_clear_user_page(addr, vaddr) #define copy_user_page(to,from,vaddr,pg) __cpu_copy_user_page(to, from, vaddr) diff --git a/arch/arm64/include/asm/perf_event.h b/arch/arm64/include/asm/perf_event.h index 2bdbc79bbd01..e7765b62c712 100644 --- a/arch/arm64/include/asm/perf_event.h +++ b/arch/arm64/include/asm/perf_event.h @@ -176,9 +176,10 @@ #define ARMV8_PMU_PMCR_X (1 << 4) /* Export to ETM */ #define ARMV8_PMU_PMCR_DP (1 << 5) /* Disable CCNT if non-invasive debug*/ #define ARMV8_PMU_PMCR_LC (1 << 6) /* Overflow on 64 bit cycle counter */ +#define ARMV8_PMU_PMCR_LP (1 << 7) /* Long event counter enable */ #define ARMV8_PMU_PMCR_N_SHIFT 11 /* Number of counters supported */ #define ARMV8_PMU_PMCR_N_MASK 0x1f -#define ARMV8_PMU_PMCR_MASK 0x7f /* Mask for writable bits */ +#define ARMV8_PMU_PMCR_MASK 0xff /* Mask for writable bits */ /* * PMOVSR: counters overflow flag status reg diff --git a/arch/arm64/include/asm/pgtable-prot.h b/arch/arm64/include/asm/pgtable-prot.h index 6f87839f0249..1305e28225fc 100644 --- a/arch/arm64/include/asm/pgtable-prot.h +++ b/arch/arm64/include/asm/pgtable-prot.h @@ -23,11 +23,13 @@ #include <asm/pgtable-types.h> +extern bool arm64_use_ng_mappings; + #define _PROT_DEFAULT (PTE_TYPE_PAGE | PTE_AF | PTE_SHARED) #define _PROT_SECT_DEFAULT (PMD_TYPE_SECT | PMD_SECT_AF | PMD_SECT_S) -#define PTE_MAYBE_NG (arm64_kernel_unmapped_at_el0() ? PTE_NG : 0) -#define PMD_MAYBE_NG (arm64_kernel_unmapped_at_el0() ? PMD_SECT_NG : 0) +#define PTE_MAYBE_NG (arm64_use_ng_mappings ? PTE_NG : 0) +#define PMD_MAYBE_NG (arm64_use_ng_mappings ? PMD_SECT_NG : 0) #define PROT_DEFAULT (_PROT_DEFAULT | PTE_MAYBE_NG) #define PROT_SECT_DEFAULT (_PROT_SECT_DEFAULT | PMD_MAYBE_NG) diff --git a/arch/arm64/include/asm/pointer_auth.h b/arch/arm64/include/asm/pointer_auth.h index 7a24bad1a58b..70c47156e54b 100644 --- a/arch/arm64/include/asm/pointer_auth.h +++ b/arch/arm64/include/asm/pointer_auth.h @@ -22,7 +22,7 @@ struct ptrauth_key { * We give each process its own keys, which are shared by all threads. The keys * are inherited upon fork(), and reinitialised upon exec*(). */ -struct ptrauth_keys { +struct ptrauth_keys_user { struct ptrauth_key apia; struct ptrauth_key apib; struct ptrauth_key apda; @@ -30,7 +30,11 @@ struct ptrauth_keys { struct ptrauth_key apga; }; -static inline void ptrauth_keys_init(struct ptrauth_keys *keys) +struct ptrauth_keys_kernel { + struct ptrauth_key apia; +}; + +static inline void ptrauth_keys_init_user(struct ptrauth_keys_user *keys) { if (system_supports_address_auth()) { get_random_bytes(&keys->apia, sizeof(keys->apia)); @@ -50,48 +54,38 @@ do { \ write_sysreg_s(__pki_v.hi, SYS_ ## k ## KEYHI_EL1); \ } while (0) -static inline void ptrauth_keys_switch(struct ptrauth_keys *keys) +static __always_inline void ptrauth_keys_init_kernel(struct ptrauth_keys_kernel *keys) { - if (system_supports_address_auth()) { - __ptrauth_key_install(APIA, keys->apia); - __ptrauth_key_install(APIB, keys->apib); - __ptrauth_key_install(APDA, keys->apda); - __ptrauth_key_install(APDB, keys->apdb); - } + if (system_supports_address_auth()) + get_random_bytes(&keys->apia, sizeof(keys->apia)); +} - if (system_supports_generic_auth()) - __ptrauth_key_install(APGA, keys->apga); +static __always_inline void ptrauth_keys_switch_kernel(struct ptrauth_keys_kernel *keys) +{ + if (system_supports_address_auth()) + __ptrauth_key_install(APIA, keys->apia); } extern int ptrauth_prctl_reset_keys(struct task_struct *tsk, unsigned long arg); -/* - * The EL0 pointer bits used by a pointer authentication code. - * This is dependent on TBI0 being enabled, or bits 63:56 would also apply. - */ -#define ptrauth_user_pac_mask() GENMASK(54, vabits_actual) - -/* Only valid for EL0 TTBR0 instruction pointers */ static inline unsigned long ptrauth_strip_insn_pac(unsigned long ptr) { - return ptr & ~ptrauth_user_pac_mask(); + return ptrauth_clear_pac(ptr); } #define ptrauth_thread_init_user(tsk) \ -do { \ - struct task_struct *__ptiu_tsk = (tsk); \ - ptrauth_keys_init(&__ptiu_tsk->thread.keys_user); \ - ptrauth_keys_switch(&__ptiu_tsk->thread.keys_user); \ -} while (0) - -#define ptrauth_thread_switch(tsk) \ - ptrauth_keys_switch(&(tsk)->thread.keys_user) + ptrauth_keys_init_user(&(tsk)->thread.keys_user) +#define ptrauth_thread_init_kernel(tsk) \ + ptrauth_keys_init_kernel(&(tsk)->thread.keys_kernel) +#define ptrauth_thread_switch_kernel(tsk) \ + ptrauth_keys_switch_kernel(&(tsk)->thread.keys_kernel) #else /* CONFIG_ARM64_PTR_AUTH */ #define ptrauth_prctl_reset_keys(tsk, arg) (-EINVAL) #define ptrauth_strip_insn_pac(lr) (lr) #define ptrauth_thread_init_user(tsk) -#define ptrauth_thread_switch(tsk) +#define ptrauth_thread_init_kernel(tsk) +#define ptrauth_thread_switch_kernel(tsk) #endif /* CONFIG_ARM64_PTR_AUTH */ #endif /* __ASM_POINTER_AUTH_H */ diff --git a/arch/arm64/include/asm/proc-fns.h b/arch/arm64/include/asm/proc-fns.h index a2ce65a0c1fa..0d5d1f0525eb 100644 --- a/arch/arm64/include/asm/proc-fns.h +++ b/arch/arm64/include/asm/proc-fns.h @@ -13,11 +13,9 @@ #include <asm/page.h> -struct mm_struct; struct cpu_suspend_ctx; extern void cpu_do_idle(void); -extern void cpu_do_switch_mm(unsigned long pgd_phys, struct mm_struct *mm); extern void cpu_do_suspend(struct cpu_suspend_ctx *ptr); extern u64 cpu_do_resume(phys_addr_t ptr, u64 idmap_ttbr); diff --git a/arch/arm64/include/asm/processor.h b/arch/arm64/include/asm/processor.h index 5ba63204d078..240fe5e5b720 100644 --- a/arch/arm64/include/asm/processor.h +++ b/arch/arm64/include/asm/processor.h @@ -28,6 +28,8 @@ #include <linux/string.h> #include <linux/thread_info.h> +#include <vdso/processor.h> + #include <asm/alternative.h> #include <asm/cpufeature.h> #include <asm/hw_breakpoint.h> @@ -146,7 +148,8 @@ struct thread_struct { unsigned long fault_code; /* ESR_EL1 value */ struct debug_info debug; /* debugging */ #ifdef CONFIG_ARM64_PTR_AUTH - struct ptrauth_keys keys_user; + struct ptrauth_keys_user keys_user; + struct ptrauth_keys_kernel keys_kernel; #endif }; @@ -256,11 +259,6 @@ extern void release_thread(struct task_struct *); unsigned long get_wchan(struct task_struct *p); -static inline void cpu_relax(void) -{ - asm volatile("yield" ::: "memory"); -} - /* Thread switching */ extern struct task_struct *cpu_switch_to(struct task_struct *prev, struct task_struct *next); diff --git a/arch/arm64/include/asm/smp.h b/arch/arm64/include/asm/smp.h index a0c8a0b65259..40d5ba029615 100644 --- a/arch/arm64/include/asm/smp.h +++ b/arch/arm64/include/asm/smp.h @@ -23,6 +23,14 @@ #define CPU_STUCK_REASON_52_BIT_VA (UL(1) << CPU_STUCK_REASON_SHIFT) #define CPU_STUCK_REASON_NO_GRAN (UL(2) << CPU_STUCK_REASON_SHIFT) +/* Possible options for __cpu_setup */ +/* Option to setup primary cpu */ +#define ARM64_CPU_BOOT_PRIMARY (1) +/* Option to setup secondary cpus */ +#define ARM64_CPU_BOOT_SECONDARY (2) +/* Option to setup cpus for different cpu run time services */ +#define ARM64_CPU_RUNTIME (3) + #ifndef __ASSEMBLY__ #include <asm/percpu.h> @@ -30,6 +38,7 @@ #include <linux/threads.h> #include <linux/cpumask.h> #include <linux/thread_info.h> +#include <asm/pointer_auth.h> DECLARE_PER_CPU_READ_MOSTLY(int, cpu_number); @@ -87,6 +96,9 @@ asmlinkage void secondary_start_kernel(void); struct secondary_data { void *stack; struct task_struct *task; +#ifdef CONFIG_ARM64_PTR_AUTH + struct ptrauth_keys_kernel ptrauth_key; +#endif long status; }; diff --git a/arch/arm64/include/asm/stackprotector.h b/arch/arm64/include/asm/stackprotector.h index 5884a2b02827..7263e0bac680 100644 --- a/arch/arm64/include/asm/stackprotector.h +++ b/arch/arm64/include/asm/stackprotector.h @@ -15,6 +15,7 @@ #include <linux/random.h> #include <linux/version.h> +#include <asm/pointer_auth.h> extern unsigned long __stack_chk_guard; @@ -26,6 +27,7 @@ extern unsigned long __stack_chk_guard; */ static __always_inline void boot_init_stack_canary(void) { +#if defined(CONFIG_STACKPROTECTOR) unsigned long canary; /* Try to get a semi random initial value. */ @@ -36,6 +38,9 @@ static __always_inline void boot_init_stack_canary(void) current->stack_canary = canary; if (!IS_ENABLED(CONFIG_STACKPROTECTOR_PER_TASK)) __stack_chk_guard = current->stack_canary; +#endif + ptrauth_thread_init_kernel(current); + ptrauth_thread_switch_kernel(current); } #endif /* _ASM_STACKPROTECTOR_H */ diff --git a/arch/arm64/include/asm/sysreg.h b/arch/arm64/include/asm/sysreg.h index b91570ff9db1..ebc622432831 100644 --- a/arch/arm64/include/asm/sysreg.h +++ b/arch/arm64/include/asm/sysreg.h @@ -386,6 +386,42 @@ #define SYS_TPIDR_EL0 sys_reg(3, 3, 13, 0, 2) #define SYS_TPIDRRO_EL0 sys_reg(3, 3, 13, 0, 3) +/* Definitions for system register interface to AMU for ARMv8.4 onwards */ +#define SYS_AM_EL0(crm, op2) sys_reg(3, 3, 13, (crm), (op2)) +#define SYS_AMCR_EL0 SYS_AM_EL0(2, 0) +#define SYS_AMCFGR_EL0 SYS_AM_EL0(2, 1) +#define SYS_AMCGCR_EL0 SYS_AM_EL0(2, 2) +#define SYS_AMUSERENR_EL0 SYS_AM_EL0(2, 3) +#define SYS_AMCNTENCLR0_EL0 SYS_AM_EL0(2, 4) +#define SYS_AMCNTENSET0_EL0 SYS_AM_EL0(2, 5) +#define SYS_AMCNTENCLR1_EL0 SYS_AM_EL0(3, 0) +#define SYS_AMCNTENSET1_EL0 SYS_AM_EL0(3, 1) + +/* + * Group 0 of activity monitors (architected): + * op0 op1 CRn CRm op2 + * Counter: 11 011 1101 010:n<3> n<2:0> + * Type: 11 011 1101 011:n<3> n<2:0> + * n: 0-15 + * + * Group 1 of activity monitors (auxiliary): + * op0 op1 CRn CRm op2 + * Counter: 11 011 1101 110:n<3> n<2:0> + * Type: 11 011 1101 111:n<3> n<2:0> + * n: 0-15 + */ + +#define SYS_AMEVCNTR0_EL0(n) SYS_AM_EL0(4 + ((n) >> 3), (n) & 7) +#define SYS_AMEVTYPE0_EL0(n) SYS_AM_EL0(6 + ((n) >> 3), (n) & 7) +#define SYS_AMEVCNTR1_EL0(n) SYS_AM_EL0(12 + ((n) >> 3), (n) & 7) +#define SYS_AMEVTYPE1_EL0(n) SYS_AM_EL0(14 + ((n) >> 3), (n) & 7) + +/* AMU v1: Fixed (architecturally defined) activity monitors */ +#define SYS_AMEVCNTR0_CORE_EL0 SYS_AMEVCNTR0_EL0(0) +#define SYS_AMEVCNTR0_CONST_EL0 SYS_AMEVCNTR0_EL0(1) +#define SYS_AMEVCNTR0_INST_RET_EL0 SYS_AMEVCNTR0_EL0(2) +#define SYS_AMEVCNTR0_MEM_STALL SYS_AMEVCNTR0_EL0(3) + #define SYS_CNTFRQ_EL0 sys_reg(3, 3, 14, 0, 0) #define SYS_CNTP_TVAL_EL0 sys_reg(3, 3, 14, 2, 0) @@ -598,6 +634,7 @@ #define ID_AA64PFR0_CSV3_SHIFT 60 #define ID_AA64PFR0_CSV2_SHIFT 56 #define ID_AA64PFR0_DIT_SHIFT 48 +#define ID_AA64PFR0_AMU_SHIFT 44 #define ID_AA64PFR0_SVE_SHIFT 32 #define ID_AA64PFR0_RAS_SHIFT 28 #define ID_AA64PFR0_GIC_SHIFT 24 @@ -608,6 +645,7 @@ #define ID_AA64PFR0_EL1_SHIFT 4 #define ID_AA64PFR0_EL0_SHIFT 0 +#define ID_AA64PFR0_AMU 0x1 #define ID_AA64PFR0_SVE 0x1 #define ID_AA64PFR0_RAS_V1 0x1 #define ID_AA64PFR0_FP_NI 0xf @@ -702,6 +740,16 @@ #define ID_AA64DFR0_TRACEVER_SHIFT 4 #define ID_AA64DFR0_DEBUGVER_SHIFT 0 +#define ID_AA64DFR0_PMUVER_8_0 0x1 +#define ID_AA64DFR0_PMUVER_8_1 0x4 +#define ID_AA64DFR0_PMUVER_8_4 0x5 +#define ID_AA64DFR0_PMUVER_8_5 0x6 +#define ID_AA64DFR0_PMUVER_IMP_DEF 0xf + +#define ID_DFR0_PERFMON_SHIFT 24 + +#define ID_DFR0_PERFMON_8_1 0x4 + #define ID_ISAR5_RDM_SHIFT 24 #define ID_ISAR5_CRC32_SHIFT 16 #define ID_ISAR5_SHA2_SHIFT 12 diff --git a/arch/arm64/include/asm/thread_info.h b/arch/arm64/include/asm/thread_info.h index f0cec4160136..512174a8e789 100644 --- a/arch/arm64/include/asm/thread_info.h +++ b/arch/arm64/include/asm/thread_info.h @@ -63,7 +63,6 @@ void arch_release_task_struct(struct task_struct *tsk); #define TIF_FOREIGN_FPSTATE 3 /* CPU's FP state is not current's */ #define TIF_UPROBE 4 /* uprobe breakpoint or singlestep */ #define TIF_FSCHECK 5 /* Check FS is USER_DS on return */ -#define TIF_NOHZ 7 #define TIF_SYSCALL_TRACE 8 /* syscall trace active */ #define TIF_SYSCALL_AUDIT 9 /* syscall auditing */ #define TIF_SYSCALL_TRACEPOINT 10 /* syscall tracepoint for ftrace */ @@ -83,7 +82,6 @@ void arch_release_task_struct(struct task_struct *tsk); #define _TIF_NEED_RESCHED (1 << TIF_NEED_RESCHED) #define _TIF_NOTIFY_RESUME (1 << TIF_NOTIFY_RESUME) #define _TIF_FOREIGN_FPSTATE (1 << TIF_FOREIGN_FPSTATE) -#define _TIF_NOHZ (1 << TIF_NOHZ) #define _TIF_SYSCALL_TRACE (1 << TIF_SYSCALL_TRACE) #define _TIF_SYSCALL_AUDIT (1 << TIF_SYSCALL_AUDIT) #define _TIF_SYSCALL_TRACEPOINT (1 << TIF_SYSCALL_TRACEPOINT) @@ -100,7 +98,7 @@ void arch_release_task_struct(struct task_struct *tsk); #define _TIF_SYSCALL_WORK (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_AUDIT | \ _TIF_SYSCALL_TRACEPOINT | _TIF_SECCOMP | \ - _TIF_NOHZ | _TIF_SYSCALL_EMU) + _TIF_SYSCALL_EMU) #define INIT_THREAD_INFO(tsk) \ { \ diff --git a/arch/arm64/include/asm/topology.h b/arch/arm64/include/asm/topology.h index a4d945db95a2..0cc835ddfcd1 100644 --- a/arch/arm64/include/asm/topology.h +++ b/arch/arm64/include/asm/topology.h @@ -16,6 +16,15 @@ int pcibus_to_node(struct pci_bus *bus); #include <linux/arch_topology.h> +#ifdef CONFIG_ARM64_AMU_EXTN +/* + * Replace task scheduler's default counter-based + * frequency-invariance scale factor setting. + */ +void topology_scale_freq_tick(void); +#define arch_scale_freq_tick topology_scale_freq_tick +#endif /* CONFIG_ARM64_AMU_EXTN */ + /* Replace task scheduler's default frequency-invariant accounting */ #define arch_scale_freq_capacity topology_get_freq_scale @@ -25,6 +34,9 @@ int pcibus_to_node(struct pci_bus *bus); /* Enable topology flag updates */ #define arch_update_cpu_topology topology_update_cpu_topology +/* Replace task scheduler's default thermal pressure retrieve API */ +#define arch_scale_thermal_pressure topology_get_thermal_pressure + #include <asm-generic/topology.h> #endif /* _ASM_ARM_TOPOLOGY_H */ diff --git a/arch/arm64/include/asm/unistd.h b/arch/arm64/include/asm/unistd.h index 1dd22da1c3a9..803039d504de 100644 --- a/arch/arm64/include/asm/unistd.h +++ b/arch/arm64/include/asm/unistd.h @@ -25,8 +25,8 @@ #define __NR_compat_gettimeofday 78 #define __NR_compat_sigreturn 119 #define __NR_compat_rt_sigreturn 173 -#define __NR_compat_clock_getres 247 #define __NR_compat_clock_gettime 263 +#define __NR_compat_clock_getres 264 #define __NR_compat_clock_gettime64 403 #define __NR_compat_clock_getres_time64 406 diff --git a/arch/arm64/include/asm/vdso/clocksource.h b/arch/arm64/include/asm/vdso/clocksource.h new file mode 100644 index 000000000000..df6ea65c1dec --- /dev/null +++ b/arch/arm64/include/asm/vdso/clocksource.h @@ -0,0 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __ASM_VDSOCLOCKSOURCE_H +#define __ASM_VDSOCLOCKSOURCE_H + +#define VDSO_ARCH_CLOCKMODES \ + VDSO_CLOCKMODE_ARCHTIMER + +#endif diff --git a/arch/arm64/include/asm/vdso/compat_gettimeofday.h b/arch/arm64/include/asm/vdso/compat_gettimeofday.h index 537b1e695365..b6907ae78e53 100644 --- a/arch/arm64/include/asm/vdso/compat_gettimeofday.h +++ b/arch/arm64/include/asm/vdso/compat_gettimeofday.h @@ -8,12 +8,10 @@ #ifndef __ASSEMBLY__ #include <asm/unistd.h> -#include <uapi/linux/time.h> +#include <asm/errno.h> #include <asm/vdso/compat_barrier.h> -#define __VDSO_USE_SYSCALL ULLONG_MAX - #define VDSO_HAS_CLOCK_GETRES 1 #define BUILD_VDSO32 1 @@ -78,10 +76,6 @@ int clock_getres_fallback(clockid_t _clkid, struct __kernel_timespec *_ts) register long ret asm ("r0"); register long nr asm("r7") = __NR_compat_clock_getres_time64; - /* The checks below are required for ABI consistency with arm */ - if ((_clkid >= MAX_CLOCKS) && (_ts == NULL)) - return -EINVAL; - asm volatile( " swi #0\n" : "=r" (ret) @@ -99,10 +93,6 @@ int clock_getres32_fallback(clockid_t _clkid, struct old_timespec32 *_ts) register long ret asm ("r0"); register long nr asm("r7") = __NR_compat_clock_getres; - /* The checks below are required for ABI consistency with arm */ - if ((_clkid >= MAX_CLOCKS) && (_ts == NULL)) - return -EINVAL; - asm volatile( " swi #0\n" : "=r" (ret) @@ -117,11 +107,12 @@ static __always_inline u64 __arch_get_hw_counter(s32 clock_mode) u64 res; /* - * clock_mode == 0 implies that vDSO are enabled otherwise - * fallback on syscall. + * Core checks for mode already, so this raced against a concurrent + * update. Return something. Core will do another round and then + * see the mode change and fallback to the syscall. */ - if (clock_mode) - return __VDSO_USE_SYSCALL; + if (clock_mode == VDSO_CLOCKMODE_NONE) + return 0; /* * This isb() is required to prevent that the counter value diff --git a/arch/arm64/include/asm/vdso/gettimeofday.h b/arch/arm64/include/asm/vdso/gettimeofday.h index b08f476b72b4..afba6ba332f8 100644 --- a/arch/arm64/include/asm/vdso/gettimeofday.h +++ b/arch/arm64/include/asm/vdso/gettimeofday.h @@ -8,9 +8,6 @@ #ifndef __ASSEMBLY__ #include <asm/unistd.h> -#include <uapi/linux/time.h> - -#define __VDSO_USE_SYSCALL ULLONG_MAX #define VDSO_HAS_CLOCK_GETRES 1 @@ -71,11 +68,12 @@ static __always_inline u64 __arch_get_hw_counter(s32 clock_mode) u64 res; /* - * clock_mode == 0 implies that vDSO are enabled otherwise - * fallback on syscall. + * Core checks for mode already, so this raced against a concurrent + * update. Return something. Core will do another round and then + * see the mode change and fallback to the syscall. */ - if (clock_mode) - return __VDSO_USE_SYSCALL; + if (clock_mode == VDSO_CLOCKMODE_NONE) + return 0; /* * This isb() is required to prevent that the counter value diff --git a/arch/arm64/include/asm/vdso/processor.h b/arch/arm64/include/asm/vdso/processor.h new file mode 100644 index 000000000000..ff830b766ad2 --- /dev/null +++ b/arch/arm64/include/asm/vdso/processor.h @@ -0,0 +1,17 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (C) 2020 ARM Ltd. + */ +#ifndef __ASM_VDSO_PROCESSOR_H +#define __ASM_VDSO_PROCESSOR_H + +#ifndef __ASSEMBLY__ + +static inline void cpu_relax(void) +{ + asm volatile("yield" ::: "memory"); +} + +#endif /* __ASSEMBLY__ */ + +#endif /* __ASM_VDSO_PROCESSOR_H */ diff --git a/arch/arm64/include/asm/vdso/vsyscall.h b/arch/arm64/include/asm/vdso/vsyscall.h index 0c20a7c1bee5..f94b1457c117 100644 --- a/arch/arm64/include/asm/vdso/vsyscall.h +++ b/arch/arm64/include/asm/vdso/vsyscall.h @@ -22,15 +22,6 @@ struct vdso_data *__arm64_get_k_vdso_data(void) #define __arch_get_k_vdso_data __arm64_get_k_vdso_data static __always_inline -int __arm64_get_clock_mode(struct timekeeper *tk) -{ - u32 use_syscall = !tk->tkr_mono.clock->archdata.vdso_direct; - - return use_syscall; -} -#define __arch_get_clock_mode __arm64_get_clock_mode - -static __always_inline void __arm64_update_vsyscall(struct vdso_data *vdata, struct timekeeper *tk) { vdata[CS_HRES_COARSE].mask = VDSO_PRECISION_MASK; diff --git a/arch/arm64/kernel/Makefile b/arch/arm64/kernel/Makefile index fc6488660f64..4e5b8ee31442 100644 --- a/arch/arm64/kernel/Makefile +++ b/arch/arm64/kernel/Makefile @@ -21,7 +21,7 @@ obj-y := debug-monitors.o entry.o irq.o fpsimd.o \ smp.o smp_spin_table.o topology.o smccc-call.o \ syscall.o -extra-$(CONFIG_EFI) := efi-entry.o +targets += efi-entry.o OBJCOPYFLAGS := --prefix-symbols=__efistub_ $(obj)/%.stub.o: $(obj)/%.o FORCE diff --git a/arch/arm64/kernel/armv8_deprecated.c b/arch/arm64/kernel/armv8_deprecated.c index 7832b3216370..4cc581af2d96 100644 --- a/arch/arm64/kernel/armv8_deprecated.c +++ b/arch/arm64/kernel/armv8_deprecated.c @@ -630,7 +630,7 @@ static int __init armv8_deprecated_init(void) register_insn_emulation(&cp15_barrier_ops); if (IS_ENABLED(CONFIG_SETEND_EMULATION)) { - if(system_supports_mixed_endian_el0()) + if (system_supports_mixed_endian_el0()) register_insn_emulation(&setend_ops); else pr_info("setend instruction emulation is not supported on this system\n"); diff --git a/arch/arm64/kernel/asm-offsets.c b/arch/arm64/kernel/asm-offsets.c index a5bdce8af65b..9981a0a5a87f 100644 --- a/arch/arm64/kernel/asm-offsets.c +++ b/arch/arm64/kernel/asm-offsets.c @@ -40,6 +40,10 @@ int main(void) #endif BLANK(); DEFINE(THREAD_CPU_CONTEXT, offsetof(struct task_struct, thread.cpu_context)); +#ifdef CONFIG_ARM64_PTR_AUTH + DEFINE(THREAD_KEYS_USER, offsetof(struct task_struct, thread.keys_user)); + DEFINE(THREAD_KEYS_KERNEL, offsetof(struct task_struct, thread.keys_kernel)); +#endif BLANK(); DEFINE(S_X0, offsetof(struct pt_regs, regs[0])); DEFINE(S_X2, offsetof(struct pt_regs, regs[2])); @@ -88,6 +92,9 @@ int main(void) BLANK(); DEFINE(CPU_BOOT_STACK, offsetof(struct secondary_data, stack)); DEFINE(CPU_BOOT_TASK, offsetof(struct secondary_data, task)); +#ifdef CONFIG_ARM64_PTR_AUTH + DEFINE(CPU_BOOT_PTRAUTH_KEY, offsetof(struct secondary_data, ptrauth_key)); +#endif BLANK(); #ifdef CONFIG_KVM_ARM_HOST DEFINE(VCPU_CONTEXT, offsetof(struct kvm_vcpu, arch.ctxt)); @@ -128,5 +135,14 @@ int main(void) DEFINE(SDEI_EVENT_INTREGS, offsetof(struct sdei_registered_event, interrupted_regs)); DEFINE(SDEI_EVENT_PRIORITY, offsetof(struct sdei_registered_event, priority)); #endif +#ifdef CONFIG_ARM64_PTR_AUTH + DEFINE(PTRAUTH_USER_KEY_APIA, offsetof(struct ptrauth_keys_user, apia)); + DEFINE(PTRAUTH_USER_KEY_APIB, offsetof(struct ptrauth_keys_user, apib)); + DEFINE(PTRAUTH_USER_KEY_APDA, offsetof(struct ptrauth_keys_user, apda)); + DEFINE(PTRAUTH_USER_KEY_APDB, offsetof(struct ptrauth_keys_user, apdb)); + DEFINE(PTRAUTH_USER_KEY_APGA, offsetof(struct ptrauth_keys_user, apga)); + DEFINE(PTRAUTH_KERNEL_KEY_APIA, offsetof(struct ptrauth_keys_kernel, apia)); + BLANK(); +#endif return 0; } diff --git a/arch/arm64/kernel/cpu-reset.S b/arch/arm64/kernel/cpu-reset.S index 32c7bf858dd9..38087b4c0432 100644 --- a/arch/arm64/kernel/cpu-reset.S +++ b/arch/arm64/kernel/cpu-reset.S @@ -32,7 +32,7 @@ ENTRY(__cpu_soft_restart) /* Clear sctlr_el1 flags. */ mrs x12, sctlr_el1 - ldr x13, =SCTLR_ELx_FLAGS + mov_q x13, SCTLR_ELx_FLAGS bic x12, x12, x13 pre_disable_mmu_workaround msr sctlr_el1, x12 diff --git a/arch/arm64/kernel/cpu_errata.c b/arch/arm64/kernel/cpu_errata.c index 703ad0a84f99..df56d2295d16 100644 --- a/arch/arm64/kernel/cpu_errata.c +++ b/arch/arm64/kernel/cpu_errata.c @@ -11,6 +11,7 @@ #include <asm/cpu.h> #include <asm/cputype.h> #include <asm/cpufeature.h> +#include <asm/kvm_asm.h> #include <asm/smp_plat.h> static bool __maybe_unused @@ -113,13 +114,10 @@ atomic_t arm64_el2_vector_last_slot = ATOMIC_INIT(-1); DEFINE_PER_CPU_READ_MOSTLY(struct bp_hardening_data, bp_hardening_data); #ifdef CONFIG_KVM_INDIRECT_VECTORS -extern char __smccc_workaround_1_smc_start[]; -extern char __smccc_workaround_1_smc_end[]; - static void __copy_hyp_vect_bpi(int slot, const char *hyp_vecs_start, const char *hyp_vecs_end) { - void *dst = lm_alias(__bp_harden_hyp_vecs_start + slot * SZ_2K); + void *dst = lm_alias(__bp_harden_hyp_vecs + slot * SZ_2K); int i; for (i = 0; i < SZ_2K; i += 0x80) @@ -163,9 +161,6 @@ static void install_bp_hardening_cb(bp_hardening_cb_t fn, raw_spin_unlock(&bp_lock); } #else -#define __smccc_workaround_1_smc_start NULL -#define __smccc_workaround_1_smc_end NULL - static void install_bp_hardening_cb(bp_hardening_cb_t fn, const char *hyp_vecs_start, const char *hyp_vecs_end) @@ -176,7 +171,7 @@ static void install_bp_hardening_cb(bp_hardening_cb_t fn, #include <linux/arm-smccc.h> -static void call_smc_arch_workaround_1(void) +static void __maybe_unused call_smc_arch_workaround_1(void) { arm_smccc_1_1_smc(ARM_SMCCC_ARCH_WORKAROUND_1, NULL); } @@ -239,11 +234,14 @@ static int detect_harden_bp_fw(void) smccc_end = NULL; break; +#if IS_ENABLED(CONFIG_KVM_ARM_HOST) case SMCCC_CONDUIT_SMC: cb = call_smc_arch_workaround_1; - smccc_start = __smccc_workaround_1_smc_start; - smccc_end = __smccc_workaround_1_smc_end; + smccc_start = __smccc_workaround_1_smc; + smccc_end = __smccc_workaround_1_smc + + __SMCCC_WORKAROUND_1_SMC_SZ; break; +#endif default: return -1; diff --git a/arch/arm64/kernel/cpu_ops.c b/arch/arm64/kernel/cpu_ops.c index 7e07072757af..e133011f64b5 100644 --- a/arch/arm64/kernel/cpu_ops.c +++ b/arch/arm64/kernel/cpu_ops.c @@ -15,10 +15,12 @@ #include <asm/smp_plat.h> extern const struct cpu_operations smp_spin_table_ops; +#ifdef CONFIG_ARM64_ACPI_PARKING_PROTOCOL extern const struct cpu_operations acpi_parking_protocol_ops; +#endif extern const struct cpu_operations cpu_psci_ops; -const struct cpu_operations *cpu_ops[NR_CPUS] __ro_after_init; +static const struct cpu_operations *cpu_ops[NR_CPUS] __ro_after_init; static const struct cpu_operations *const dt_supported_cpu_ops[] __initconst = { &smp_spin_table_ops, @@ -94,7 +96,7 @@ static const char *__init cpu_read_enable_method(int cpu) /* * Read a cpu's enable method and record it in cpu_ops. */ -int __init cpu_read_ops(int cpu) +int __init init_cpu_ops(int cpu) { const char *enable_method = cpu_read_enable_method(cpu); @@ -109,3 +111,8 @@ int __init cpu_read_ops(int cpu) return 0; } + +const struct cpu_operations *get_cpu_ops(int cpu) +{ + return cpu_ops[cpu]; +} diff --git a/arch/arm64/kernel/cpufeature.c b/arch/arm64/kernel/cpufeature.c index 0b6715625cf6..9fac745aa7bb 100644 --- a/arch/arm64/kernel/cpufeature.c +++ b/arch/arm64/kernel/cpufeature.c @@ -116,6 +116,8 @@ cpufeature_pan_not_uao(const struct arm64_cpu_capabilities *entry, int __unused) static void cpu_enable_cnp(struct arm64_cpu_capabilities const *cap); +static bool __system_matches_cap(unsigned int n); + /* * NOTE: Any changes to the visibility of features should be kept in * sync with the documentation of the CPU feature register ABI. @@ -163,6 +165,7 @@ static const struct arm64_ftr_bits ftr_id_aa64pfr0[] = { ARM64_FTR_BITS(FTR_HIDDEN, FTR_NONSTRICT, FTR_LOWER_SAFE, ID_AA64PFR0_CSV3_SHIFT, 4, 0), ARM64_FTR_BITS(FTR_HIDDEN, FTR_NONSTRICT, FTR_LOWER_SAFE, ID_AA64PFR0_CSV2_SHIFT, 4, 0), ARM64_FTR_BITS(FTR_VISIBLE, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64PFR0_DIT_SHIFT, 4, 0), + ARM64_FTR_BITS(FTR_HIDDEN, FTR_NONSTRICT, FTR_LOWER_SAFE, ID_AA64PFR0_AMU_SHIFT, 4, 0), ARM64_FTR_BITS(FTR_VISIBLE_IF_IS_ENABLED(CONFIG_ARM64_SVE), FTR_STRICT, FTR_LOWER_SAFE, ID_AA64PFR0_SVE_SHIFT, 4, 0), ARM64_FTR_BITS(FTR_HIDDEN, FTR_STRICT, FTR_LOWER_SAFE, ID_AA64PFR0_RAS_SHIFT, 4, 0), @@ -551,7 +554,7 @@ static void __init init_cpu_ftr_reg(u32 sys_reg, u64 new) BUG_ON(!reg); - for (ftrp = reg->ftr_bits; ftrp->width; ftrp++) { + for (ftrp = reg->ftr_bits; ftrp->width; ftrp++) { u64 ftr_mask = arm64_ftr_mask(ftrp); s64 ftr_new = arm64_ftr_value(ftrp, new); @@ -1222,6 +1225,57 @@ static bool has_hw_dbm(const struct arm64_cpu_capabilities *cap, #endif +#ifdef CONFIG_ARM64_AMU_EXTN + +/* + * The "amu_cpus" cpumask only signals that the CPU implementation for the + * flagged CPUs supports the Activity Monitors Unit (AMU) but does not provide + * information regarding all the events that it supports. When a CPU bit is + * set in the cpumask, the user of this feature can only rely on the presence + * of the 4 fixed counters for that CPU. But this does not guarantee that the + * counters are enabled or access to these counters is enabled by code + * executed at higher exception levels (firmware). + */ +static struct cpumask amu_cpus __read_mostly; + +bool cpu_has_amu_feat(int cpu) +{ + return cpumask_test_cpu(cpu, &amu_cpus); +} + +/* Initialize the use of AMU counters for frequency invariance */ +extern void init_cpu_freq_invariance_counters(void); + +static void cpu_amu_enable(struct arm64_cpu_capabilities const *cap) +{ + if (has_cpuid_feature(cap, SCOPE_LOCAL_CPU)) { + pr_info("detected CPU%d: Activity Monitors Unit (AMU)\n", + smp_processor_id()); + cpumask_set_cpu(smp_processor_id(), &amu_cpus); + init_cpu_freq_invariance_counters(); + } +} + +static bool has_amu(const struct arm64_cpu_capabilities *cap, + int __unused) +{ + /* + * The AMU extension is a non-conflicting feature: the kernel can + * safely run a mix of CPUs with and without support for the + * activity monitors extension. Therefore, unconditionally enable + * the capability to allow any late CPU to use the feature. + * + * With this feature unconditionally enabled, the cpu_enable + * function will be called for all CPUs that match the criteria, + * including secondary and hotplugged, marking this feature as + * present on that respective CPU. The enable function will also + * print a detection message. + */ + + return true; +} +#endif + #ifdef CONFIG_ARM64_VHE static bool runs_at_el2(const struct arm64_cpu_capabilities *entry, int __unused) { @@ -1316,10 +1370,18 @@ static void cpu_clear_disr(const struct arm64_cpu_capabilities *__unused) #endif /* CONFIG_ARM64_RAS_EXTN */ #ifdef CONFIG_ARM64_PTR_AUTH -static void cpu_enable_address_auth(struct arm64_cpu_capabilities const *cap) +static bool has_address_auth(const struct arm64_cpu_capabilities *entry, + int __unused) { - sysreg_clear_set(sctlr_el1, 0, SCTLR_ELx_ENIA | SCTLR_ELx_ENIB | - SCTLR_ELx_ENDA | SCTLR_ELx_ENDB); + return __system_matches_cap(ARM64_HAS_ADDRESS_AUTH_ARCH) || + __system_matches_cap(ARM64_HAS_ADDRESS_AUTH_IMP_DEF); +} + +static bool has_generic_auth(const struct arm64_cpu_capabilities *entry, + int __unused) +{ + return __system_matches_cap(ARM64_HAS_GENERIC_AUTH_ARCH) || + __system_matches_cap(ARM64_HAS_GENERIC_AUTH_IMP_DEF); } #endif /* CONFIG_ARM64_PTR_AUTH */ @@ -1347,6 +1409,25 @@ static bool can_use_gic_priorities(const struct arm64_cpu_capabilities *entry, } #endif +/* Internal helper functions to match cpu capability type */ +static bool +cpucap_late_cpu_optional(const struct arm64_cpu_capabilities *cap) +{ + return !!(cap->type & ARM64_CPUCAP_OPTIONAL_FOR_LATE_CPU); +} + +static bool +cpucap_late_cpu_permitted(const struct arm64_cpu_capabilities *cap) +{ + return !!(cap->type & ARM64_CPUCAP_PERMITTED_FOR_LATE_CPU); +} + +static bool +cpucap_panic_on_conflict(const struct arm64_cpu_capabilities *cap) +{ + return !!(cap->type & ARM64_CPUCAP_PANIC_ON_CONFLICT); +} + static const struct arm64_cpu_capabilities arm64_features[] = { { .desc = "GIC system register CPU interface", @@ -1499,6 +1580,24 @@ static const struct arm64_cpu_capabilities arm64_features[] = { .cpu_enable = cpu_clear_disr, }, #endif /* CONFIG_ARM64_RAS_EXTN */ +#ifdef CONFIG_ARM64_AMU_EXTN + { + /* + * The feature is enabled by default if CONFIG_ARM64_AMU_EXTN=y. + * Therefore, don't provide .desc as we don't want the detection + * message to be shown until at least one CPU is detected to + * support the feature. + */ + .capability = ARM64_HAS_AMU_EXTN, + .type = ARM64_CPUCAP_WEAK_LOCAL_CPU_FEATURE, + .matches = has_amu, + .sys_reg = SYS_ID_AA64PFR0_EL1, + .sign = FTR_UNSIGNED, + .field_pos = ID_AA64PFR0_AMU_SHIFT, + .min_field_value = ID_AA64PFR0_AMU, + .cpu_enable = cpu_amu_enable, + }, +#endif /* CONFIG_ARM64_AMU_EXTN */ { .desc = "Data cache clean to the PoU not required for I/D coherence", .capability = ARM64_HAS_CACHE_IDC, @@ -1592,24 +1691,27 @@ static const struct arm64_cpu_capabilities arm64_features[] = { { .desc = "Address authentication (architected algorithm)", .capability = ARM64_HAS_ADDRESS_AUTH_ARCH, - .type = ARM64_CPUCAP_SYSTEM_FEATURE, + .type = ARM64_CPUCAP_BOOT_CPU_FEATURE, .sys_reg = SYS_ID_AA64ISAR1_EL1, .sign = FTR_UNSIGNED, .field_pos = ID_AA64ISAR1_APA_SHIFT, .min_field_value = ID_AA64ISAR1_APA_ARCHITECTED, .matches = has_cpuid_feature, - .cpu_enable = cpu_enable_address_auth, }, { .desc = "Address authentication (IMP DEF algorithm)", .capability = ARM64_HAS_ADDRESS_AUTH_IMP_DEF, - .type = ARM64_CPUCAP_SYSTEM_FEATURE, + .type = ARM64_CPUCAP_BOOT_CPU_FEATURE, .sys_reg = SYS_ID_AA64ISAR1_EL1, .sign = FTR_UNSIGNED, .field_pos = ID_AA64ISAR1_API_SHIFT, .min_field_value = ID_AA64ISAR1_API_IMP_DEF, .matches = has_cpuid_feature, - .cpu_enable = cpu_enable_address_auth, + }, + { + .capability = ARM64_HAS_ADDRESS_AUTH, + .type = ARM64_CPUCAP_BOOT_CPU_FEATURE, + .matches = has_address_auth, }, { .desc = "Generic authentication (architected algorithm)", @@ -1631,6 +1733,11 @@ static const struct arm64_cpu_capabilities arm64_features[] = { .min_field_value = ID_AA64ISAR1_GPI_IMP_DEF, .matches = has_cpuid_feature, }, + { + .capability = ARM64_HAS_GENERIC_AUTH, + .type = ARM64_CPUCAP_SYSTEM_FEATURE, + .matches = has_generic_auth, + }, #endif /* CONFIG_ARM64_PTR_AUTH */ #ifdef CONFIG_ARM64_PSEUDO_NMI { @@ -1980,10 +2087,8 @@ static void __init enable_cpu_capabilities(u16 scope_mask) * Run through the list of capabilities to check for conflicts. * If the system has already detected a capability, take necessary * action on this CPU. - * - * Returns "false" on conflicts. */ -static bool verify_local_cpu_caps(u16 scope_mask) +static void verify_local_cpu_caps(u16 scope_mask) { int i; bool cpu_has_cap, system_has_cap; @@ -2028,10 +2133,12 @@ static bool verify_local_cpu_caps(u16 scope_mask) pr_crit("CPU%d: Detected conflict for capability %d (%s), System: %d, CPU: %d\n", smp_processor_id(), caps->capability, caps->desc, system_has_cap, cpu_has_cap); - return false; - } - return true; + if (cpucap_panic_on_conflict(caps)) + cpu_panic_kernel(); + else + cpu_die_early(); + } } /* @@ -2041,12 +2148,8 @@ static bool verify_local_cpu_caps(u16 scope_mask) static void check_early_cpu_features(void) { verify_cpu_asid_bits(); - /* - * Early features are used by the kernel already. If there - * is a conflict, we cannot proceed further. - */ - if (!verify_local_cpu_caps(SCOPE_BOOT_CPU)) - cpu_panic_kernel(); + + verify_local_cpu_caps(SCOPE_BOOT_CPU); } static void @@ -2094,8 +2197,7 @@ static void verify_local_cpu_capabilities(void) * check_early_cpu_features(), as they need to be verified * on all secondary CPUs. */ - if (!verify_local_cpu_caps(SCOPE_ALL & ~SCOPE_BOOT_CPU)) - cpu_die_early(); + verify_local_cpu_caps(SCOPE_ALL & ~SCOPE_BOOT_CPU); verify_local_elf_hwcaps(arm64_elf_hwcaps); @@ -2146,6 +2248,23 @@ bool this_cpu_has_cap(unsigned int n) return false; } +/* + * This helper function is used in a narrow window when, + * - The system wide safe registers are set with all the SMP CPUs and, + * - The SYSTEM_FEATURE cpu_hwcaps may not have been set. + * In all other cases cpus_have_{const_}cap() should be used. + */ +static bool __system_matches_cap(unsigned int n) +{ + if (n < ARM64_NCAPS) { + const struct arm64_cpu_capabilities *cap = cpu_hwcaps_ptrs[n]; + + if (cap) + return cap->matches(cap, SCOPE_SYSTEM); + } + return false; +} + void cpu_set_feature(unsigned int num) { WARN_ON(num >= MAX_CPU_FEATURES); @@ -2218,7 +2337,7 @@ void __init setup_cpu_features(void) static bool __maybe_unused cpufeature_pan_not_uao(const struct arm64_cpu_capabilities *entry, int __unused) { - return (cpus_have_const_cap(ARM64_HAS_PAN) && !cpus_have_const_cap(ARM64_HAS_UAO)); + return (__system_matches_cap(ARM64_HAS_PAN) && !__system_matches_cap(ARM64_HAS_UAO)); } static void __maybe_unused cpu_enable_cnp(struct arm64_cpu_capabilities const *cap) diff --git a/arch/arm64/kernel/cpuidle.c b/arch/arm64/kernel/cpuidle.c index e4d6af2fdec7..b512b5503f6e 100644 --- a/arch/arm64/kernel/cpuidle.c +++ b/arch/arm64/kernel/cpuidle.c @@ -18,11 +18,11 @@ int arm_cpuidle_init(unsigned int cpu) { + const struct cpu_operations *ops = get_cpu_ops(cpu); int ret = -EOPNOTSUPP; - if (cpu_ops[cpu] && cpu_ops[cpu]->cpu_suspend && - cpu_ops[cpu]->cpu_init_idle) - ret = cpu_ops[cpu]->cpu_init_idle(cpu); + if (ops && ops->cpu_suspend && ops->cpu_init_idle) + ret = ops->cpu_init_idle(cpu); return ret; } @@ -37,8 +37,9 @@ int arm_cpuidle_init(unsigned int cpu) int arm_cpuidle_suspend(int index) { int cpu = smp_processor_id(); + const struct cpu_operations *ops = get_cpu_ops(cpu); - return cpu_ops[cpu]->cpu_suspend(index); + return ops->cpu_suspend(index); } #ifdef CONFIG_ACPI diff --git a/arch/arm64/kernel/efi-entry.S b/arch/arm64/kernel/efi-entry.S index 304d5b02ca67..1a03618df0df 100644 --- a/arch/arm64/kernel/efi-entry.S +++ b/arch/arm64/kernel/efi-entry.S @@ -10,81 +10,35 @@ #include <asm/assembler.h> -#define EFI_LOAD_ERROR 0x8000000000000001 - __INIT - /* - * We arrive here from the EFI boot manager with: - * - * * CPU in little-endian mode - * * MMU on with identity-mapped RAM - * * Icache and Dcache on - * - * We will most likely be running from some place other than where - * we want to be. The kernel image wants to be placed at TEXT_OFFSET - * from start of RAM. - */ -ENTRY(entry) - /* - * Create a stack frame to save FP/LR with extra space - * for image_addr variable passed to efi_entry(). - */ - stp x29, x30, [sp, #-32]! - mov x29, sp - - /* - * Call efi_entry to do the real work. - * x0 and x1 are already set up by firmware. Current runtime - * address of image is calculated and passed via *image_addr. - * - * unsigned long efi_entry(void *handle, - * efi_system_table_t *sys_table, - * unsigned long *image_addr) ; - */ - adr_l x8, _text - add x2, sp, 16 - str x8, [x2] - bl efi_entry - cmn x0, #1 - b.eq efi_load_fail - +SYM_CODE_START(efi_enter_kernel) /* * efi_entry() will have copied the kernel image if necessary and we - * return here with device tree address in x0 and the kernel entry - * point stored at *image_addr. Save those values in registers which - * are callee preserved. - */ - mov x20, x0 // DTB address - ldr x0, [sp, #16] // relocated _text address - ldr w21, =stext_offset - add x21, x0, x21 - - /* - * Calculate size of the kernel Image (same for original and copy). + * end up here with device tree address in x1 and the kernel entry + * point stored in x0. Save those values in registers which are + * callee preserved. */ - adr_l x1, _text - adr_l x2, _edata - sub x1, x2, x1 + ldr w2, =stext_offset + add x19, x0, x2 // relocated Image entrypoint + mov x20, x1 // DTB address /* - * Flush the copied Image to the PoC, and ensure it is not shadowed by + * Clean the copied Image to the PoC, and ensure it is not shadowed by * stale icache entries from before relocation. */ - bl __flush_dcache_area + ldr w1, =kernel_size + bl __clean_dcache_area_poc ic ialluis /* - * Ensure that the rest of this function (in the original Image) is - * visible when the caches are disabled. The I-cache can't have stale - * entries for the VA range of the current image, so no maintenance is - * necessary. + * Clean the remainder of this routine to the PoC + * so that we can safely disable the MMU and caches. */ - adr x0, entry - adr x1, entry_end - sub x1, x1, x0 - bl __flush_dcache_area - + adr x0, 0f + ldr w1, 3f + bl __clean_dcache_area_poc +0: /* Turn off Dcache and MMU */ mrs x0, CurrentEL cmp x0, #CurrentEL_EL2 @@ -109,12 +63,6 @@ ENTRY(entry) mov x1, xzr mov x2, xzr mov x3, xzr - br x21 - -efi_load_fail: - mov x0, #EFI_LOAD_ERROR - ldp x29, x30, [sp], #32 - ret - -entry_end: -ENDPROC(entry) + br x19 +SYM_CODE_END(efi_enter_kernel) +3: .long . - 0b diff --git a/arch/arm64/kernel/efi-header.S b/arch/arm64/kernel/efi-header.S index a7cfacce3e15..914999ccaf8a 100644 --- a/arch/arm64/kernel/efi-header.S +++ b/arch/arm64/kernel/efi-header.S @@ -27,7 +27,7 @@ optional_header: .long __initdata_begin - efi_header_end // SizeOfCode .long __pecoff_data_size // SizeOfInitializedData .long 0 // SizeOfUninitializedData - .long __efistub_entry - _head // AddressOfEntryPoint + .long __efistub_efi_entry - _head // AddressOfEntryPoint .long efi_header_end - _head // BaseOfCode extra_header_fields: @@ -36,8 +36,8 @@ extra_header_fields: .long PECOFF_FILE_ALIGNMENT // FileAlignment .short 0 // MajorOperatingSystemVersion .short 0 // MinorOperatingSystemVersion - .short 0 // MajorImageVersion - .short 0 // MinorImageVersion + .short LINUX_EFISTUB_MAJOR_VERSION // MajorImageVersion + .short LINUX_EFISTUB_MINOR_VERSION // MinorImageVersion .short 0 // MajorSubsystemVersion .short 0 // MinorSubsystemVersion .long 0 // Win32VersionValue diff --git a/arch/arm64/kernel/entry-common.c b/arch/arm64/kernel/entry-common.c index fde59981445c..c839b5bf1904 100644 --- a/arch/arm64/kernel/entry-common.c +++ b/arch/arm64/kernel/entry-common.c @@ -175,7 +175,7 @@ NOKPROBE_SYMBOL(el0_pc); static void notrace el0_sp(struct pt_regs *regs, unsigned long esr) { user_exit_irqoff(); - local_daif_restore(DAIF_PROCCTX_NOIRQ); + local_daif_restore(DAIF_PROCCTX); do_sp_pc_abort(regs->sp, esr, regs); } NOKPROBE_SYMBOL(el0_sp); diff --git a/arch/arm64/kernel/entry-ftrace.S b/arch/arm64/kernel/entry-ftrace.S index 7d02f9966d34..833d48c9acb5 100644 --- a/arch/arm64/kernel/entry-ftrace.S +++ b/arch/arm64/kernel/entry-ftrace.S @@ -75,27 +75,27 @@ add x29, sp, #S_STACKFRAME .endm -ENTRY(ftrace_regs_caller) +SYM_CODE_START(ftrace_regs_caller) ftrace_regs_entry 1 b ftrace_common -ENDPROC(ftrace_regs_caller) +SYM_CODE_END(ftrace_regs_caller) -ENTRY(ftrace_caller) +SYM_CODE_START(ftrace_caller) ftrace_regs_entry 0 b ftrace_common -ENDPROC(ftrace_caller) +SYM_CODE_END(ftrace_caller) -ENTRY(ftrace_common) +SYM_CODE_START(ftrace_common) sub x0, x30, #AARCH64_INSN_SIZE // ip (callsite's BL insn) mov x1, x9 // parent_ip (callsite's LR) ldr_l x2, function_trace_op // op mov x3, sp // regs -GLOBAL(ftrace_call) +SYM_INNER_LABEL(ftrace_call, SYM_L_GLOBAL) bl ftrace_stub #ifdef CONFIG_FUNCTION_GRAPH_TRACER -GLOBAL(ftrace_graph_call) // ftrace_graph_caller(); +SYM_INNER_LABEL(ftrace_graph_call, SYM_L_GLOBAL) // ftrace_graph_caller(); nop // If enabled, this will be replaced // "b ftrace_graph_caller" #endif @@ -122,17 +122,17 @@ ftrace_common_return: add sp, sp, #S_FRAME_SIZE + 16 ret x9 -ENDPROC(ftrace_common) +SYM_CODE_END(ftrace_common) #ifdef CONFIG_FUNCTION_GRAPH_TRACER -ENTRY(ftrace_graph_caller) +SYM_CODE_START(ftrace_graph_caller) ldr x0, [sp, #S_PC] sub x0, x0, #AARCH64_INSN_SIZE // ip (callsite's BL insn) add x1, sp, #S_LR // parent_ip (callsite's LR) ldr x2, [sp, #S_FRAME_SIZE] // parent fp (callsite's FP) bl prepare_ftrace_return b ftrace_common_return -ENDPROC(ftrace_graph_caller) +SYM_CODE_END(ftrace_graph_caller) #endif #else /* CONFIG_DYNAMIC_FTRACE_WITH_REGS */ @@ -218,7 +218,7 @@ ENDPROC(ftrace_graph_caller) * - tracer function to probe instrumented function's entry, * - ftrace_graph_caller to set up an exit hook */ -ENTRY(_mcount) +SYM_FUNC_START(_mcount) mcount_enter ldr_l x2, ftrace_trace_function @@ -242,7 +242,7 @@ skip_ftrace_call: // } b.ne ftrace_graph_caller // ftrace_graph_caller(); #endif /* CONFIG_FUNCTION_GRAPH_TRACER */ mcount_exit -ENDPROC(_mcount) +SYM_FUNC_END(_mcount) EXPORT_SYMBOL(_mcount) NOKPROBE(_mcount) @@ -253,9 +253,9 @@ NOKPROBE(_mcount) * and later on, NOP to branch to ftrace_caller() when enabled or branch to * NOP when disabled per-function base. */ -ENTRY(_mcount) +SYM_FUNC_START(_mcount) ret -ENDPROC(_mcount) +SYM_FUNC_END(_mcount) EXPORT_SYMBOL(_mcount) NOKPROBE(_mcount) @@ -268,24 +268,24 @@ NOKPROBE(_mcount) * - tracer function to probe instrumented function's entry, * - ftrace_graph_caller to set up an exit hook */ -ENTRY(ftrace_caller) +SYM_FUNC_START(ftrace_caller) mcount_enter mcount_get_pc0 x0 // function's pc mcount_get_lr x1 // function's lr -GLOBAL(ftrace_call) // tracer(pc, lr); +SYM_INNER_LABEL(ftrace_call, SYM_L_GLOBAL) // tracer(pc, lr); nop // This will be replaced with "bl xxx" // where xxx can be any kind of tracer. #ifdef CONFIG_FUNCTION_GRAPH_TRACER -GLOBAL(ftrace_graph_call) // ftrace_graph_caller(); +SYM_INNER_LABEL(ftrace_graph_call, SYM_L_GLOBAL) // ftrace_graph_caller(); nop // If enabled, this will be replaced // "b ftrace_graph_caller" #endif mcount_exit -ENDPROC(ftrace_caller) +SYM_FUNC_END(ftrace_caller) #endif /* CONFIG_DYNAMIC_FTRACE */ #ifdef CONFIG_FUNCTION_GRAPH_TRACER @@ -298,20 +298,20 @@ ENDPROC(ftrace_caller) * the call stack in order to intercept instrumented function's return path * and run return_to_handler() later on its exit. */ -ENTRY(ftrace_graph_caller) +SYM_FUNC_START(ftrace_graph_caller) mcount_get_pc x0 // function's pc mcount_get_lr_addr x1 // pointer to function's saved lr mcount_get_parent_fp x2 // parent's fp bl prepare_ftrace_return // prepare_ftrace_return(pc, &lr, fp) mcount_exit -ENDPROC(ftrace_graph_caller) +SYM_FUNC_END(ftrace_graph_caller) #endif /* CONFIG_FUNCTION_GRAPH_TRACER */ #endif /* CONFIG_DYNAMIC_FTRACE_WITH_REGS */ -ENTRY(ftrace_stub) +SYM_FUNC_START(ftrace_stub) ret -ENDPROC(ftrace_stub) +SYM_FUNC_END(ftrace_stub) #ifdef CONFIG_FUNCTION_GRAPH_TRACER /* @@ -320,7 +320,7 @@ ENDPROC(ftrace_stub) * Run ftrace_return_to_handler() before going back to parent. * @fp is checked against the value passed by ftrace_graph_caller(). */ -ENTRY(return_to_handler) +SYM_CODE_START(return_to_handler) /* save return value regs */ sub sp, sp, #64 stp x0, x1, [sp] @@ -340,5 +340,5 @@ ENTRY(return_to_handler) add sp, sp, #64 ret -END(return_to_handler) +SYM_CODE_END(return_to_handler) #endif /* CONFIG_FUNCTION_GRAPH_TRACER */ diff --git a/arch/arm64/kernel/entry.S b/arch/arm64/kernel/entry.S index 9461d812ae27..ddcde093c433 100644 --- a/arch/arm64/kernel/entry.S +++ b/arch/arm64/kernel/entry.S @@ -14,6 +14,7 @@ #include <asm/alternative.h> #include <asm/assembler.h> #include <asm/asm-offsets.h> +#include <asm/asm_pointer_auth.h> #include <asm/cpufeature.h> #include <asm/errno.h> #include <asm/esr.h> @@ -177,6 +178,7 @@ alternative_cb_end apply_ssbd 1, x22, x23 + ptrauth_keys_install_kernel tsk, 1, x20, x22, x23 .else add x21, sp, #S_FRAME_SIZE get_current_task tsk @@ -341,6 +343,9 @@ alternative_else_nop_endif msr cntkctl_el1, x1 4: #endif + /* No kernel C function calls after this as user keys are set. */ + ptrauth_keys_install_user tsk, x0, x1, x2 + apply_ssbd 0, x0, x1 .endif @@ -465,7 +470,7 @@ alternative_endif .pushsection ".entry.text", "ax" .align 11 -ENTRY(vectors) +SYM_CODE_START(vectors) kernel_ventry 1, sync_invalid // Synchronous EL1t kernel_ventry 1, irq_invalid // IRQ EL1t kernel_ventry 1, fiq_invalid // FIQ EL1t @@ -492,7 +497,7 @@ ENTRY(vectors) kernel_ventry 0, fiq_invalid, 32 // FIQ 32-bit EL0 kernel_ventry 0, error_invalid, 32 // Error 32-bit EL0 #endif -END(vectors) +SYM_CODE_END(vectors) #ifdef CONFIG_VMAP_STACK /* @@ -534,57 +539,57 @@ __bad_stack: ASM_BUG() .endm -el0_sync_invalid: +SYM_CODE_START_LOCAL(el0_sync_invalid) inv_entry 0, BAD_SYNC -ENDPROC(el0_sync_invalid) +SYM_CODE_END(el0_sync_invalid) -el0_irq_invalid: +SYM_CODE_START_LOCAL(el0_irq_invalid) inv_entry 0, BAD_IRQ -ENDPROC(el0_irq_invalid) +SYM_CODE_END(el0_irq_invalid) -el0_fiq_invalid: +SYM_CODE_START_LOCAL(el0_fiq_invalid) inv_entry 0, BAD_FIQ -ENDPROC(el0_fiq_invalid) +SYM_CODE_END(el0_fiq_invalid) -el0_error_invalid: +SYM_CODE_START_LOCAL(el0_error_invalid) inv_entry 0, BAD_ERROR -ENDPROC(el0_error_invalid) +SYM_CODE_END(el0_error_invalid) #ifdef CONFIG_COMPAT -el0_fiq_invalid_compat: +SYM_CODE_START_LOCAL(el0_fiq_invalid_compat) inv_entry 0, BAD_FIQ, 32 -ENDPROC(el0_fiq_invalid_compat) +SYM_CODE_END(el0_fiq_invalid_compat) #endif -el1_sync_invalid: +SYM_CODE_START_LOCAL(el1_sync_invalid) inv_entry 1, BAD_SYNC -ENDPROC(el1_sync_invalid) +SYM_CODE_END(el1_sync_invalid) -el1_irq_invalid: +SYM_CODE_START_LOCAL(el1_irq_invalid) inv_entry 1, BAD_IRQ -ENDPROC(el1_irq_invalid) +SYM_CODE_END(el1_irq_invalid) -el1_fiq_invalid: +SYM_CODE_START_LOCAL(el1_fiq_invalid) inv_entry 1, BAD_FIQ -ENDPROC(el1_fiq_invalid) +SYM_CODE_END(el1_fiq_invalid) -el1_error_invalid: +SYM_CODE_START_LOCAL(el1_error_invalid) inv_entry 1, BAD_ERROR -ENDPROC(el1_error_invalid) +SYM_CODE_END(el1_error_invalid) /* * EL1 mode handlers. */ .align 6 -el1_sync: +SYM_CODE_START_LOCAL_NOALIGN(el1_sync) kernel_entry 1 mov x0, sp bl el1_sync_handler kernel_exit 1 -ENDPROC(el1_sync) +SYM_CODE_END(el1_sync) .align 6 -el1_irq: +SYM_CODE_START_LOCAL_NOALIGN(el1_irq) kernel_entry 1 gic_prio_irq_setup pmr=x20, tmp=x1 enable_da_f @@ -639,42 +644,42 @@ alternative_else_nop_endif #endif kernel_exit 1 -ENDPROC(el1_irq) +SYM_CODE_END(el1_irq) /* * EL0 mode handlers. */ .align 6 -el0_sync: +SYM_CODE_START_LOCAL_NOALIGN(el0_sync) kernel_entry 0 mov x0, sp bl el0_sync_handler b ret_to_user -ENDPROC(el0_sync) +SYM_CODE_END(el0_sync) #ifdef CONFIG_COMPAT .align 6 -el0_sync_compat: +SYM_CODE_START_LOCAL_NOALIGN(el0_sync_compat) kernel_entry 0, 32 mov x0, sp bl el0_sync_compat_handler b ret_to_user -ENDPROC(el0_sync_compat) +SYM_CODE_END(el0_sync_compat) .align 6 -el0_irq_compat: +SYM_CODE_START_LOCAL_NOALIGN(el0_irq_compat) kernel_entry 0, 32 b el0_irq_naked -ENDPROC(el0_irq_compat) +SYM_CODE_END(el0_irq_compat) -el0_error_compat: +SYM_CODE_START_LOCAL_NOALIGN(el0_error_compat) kernel_entry 0, 32 b el0_error_naked -ENDPROC(el0_error_compat) +SYM_CODE_END(el0_error_compat) #endif .align 6 -el0_irq: +SYM_CODE_START_LOCAL_NOALIGN(el0_irq) kernel_entry 0 el0_irq_naked: gic_prio_irq_setup pmr=x20, tmp=x0 @@ -696,9 +701,9 @@ el0_irq_naked: bl trace_hardirqs_on #endif b ret_to_user -ENDPROC(el0_irq) +SYM_CODE_END(el0_irq) -el1_error: +SYM_CODE_START_LOCAL(el1_error) kernel_entry 1 mrs x1, esr_el1 gic_prio_kentry_setup tmp=x2 @@ -706,9 +711,9 @@ el1_error: mov x0, sp bl do_serror kernel_exit 1 -ENDPROC(el1_error) +SYM_CODE_END(el1_error) -el0_error: +SYM_CODE_START_LOCAL(el0_error) kernel_entry 0 el0_error_naked: mrs x25, esr_el1 @@ -720,7 +725,7 @@ el0_error_naked: bl do_serror enable_da_f b ret_to_user -ENDPROC(el0_error) +SYM_CODE_END(el0_error) /* * Ok, we need to do extra processing, enter the slow path. @@ -832,7 +837,7 @@ alternative_else_nop_endif .endm .align 11 -ENTRY(tramp_vectors) +SYM_CODE_START_NOALIGN(tramp_vectors) .space 0x400 tramp_ventry @@ -844,24 +849,24 @@ ENTRY(tramp_vectors) tramp_ventry 32 tramp_ventry 32 tramp_ventry 32 -END(tramp_vectors) +SYM_CODE_END(tramp_vectors) -ENTRY(tramp_exit_native) +SYM_CODE_START(tramp_exit_native) tramp_exit -END(tramp_exit_native) +SYM_CODE_END(tramp_exit_native) -ENTRY(tramp_exit_compat) +SYM_CODE_START(tramp_exit_compat) tramp_exit 32 -END(tramp_exit_compat) +SYM_CODE_END(tramp_exit_compat) .ltorg .popsection // .entry.tramp.text #ifdef CONFIG_RANDOMIZE_BASE .pushsection ".rodata", "a" .align PAGE_SHIFT - .globl __entry_tramp_data_start -__entry_tramp_data_start: +SYM_DATA_START(__entry_tramp_data_start) .quad vectors +SYM_DATA_END(__entry_tramp_data_start) .popsection // .rodata #endif /* CONFIG_RANDOMIZE_BASE */ #endif /* CONFIG_UNMAP_KERNEL_AT_EL0 */ @@ -874,7 +879,7 @@ __entry_tramp_data_start: * Previous and next are guaranteed not to be the same. * */ -ENTRY(cpu_switch_to) +SYM_FUNC_START(cpu_switch_to) mov x10, #THREAD_CPU_CONTEXT add x8, x0, x10 mov x9, sp @@ -895,21 +900,22 @@ ENTRY(cpu_switch_to) ldr lr, [x8] mov sp, x9 msr sp_el0, x1 + ptrauth_keys_install_kernel x1, 1, x8, x9, x10 ret -ENDPROC(cpu_switch_to) +SYM_FUNC_END(cpu_switch_to) NOKPROBE(cpu_switch_to) /* * This is how we return from a fork. */ -ENTRY(ret_from_fork) +SYM_CODE_START(ret_from_fork) bl schedule_tail cbz x19, 1f // not a kernel thread mov x0, x20 blr x19 1: get_current_task tsk b ret_to_user -ENDPROC(ret_from_fork) +SYM_CODE_END(ret_from_fork) NOKPROBE(ret_from_fork) #ifdef CONFIG_ARM_SDE_INTERFACE @@ -938,7 +944,7 @@ NOKPROBE(ret_from_fork) */ .ltorg .pushsection ".entry.tramp.text", "ax" -ENTRY(__sdei_asm_entry_trampoline) +SYM_CODE_START(__sdei_asm_entry_trampoline) mrs x4, ttbr1_el1 tbz x4, #USER_ASID_BIT, 1f @@ -960,7 +966,7 @@ ENTRY(__sdei_asm_entry_trampoline) ldr x4, =__sdei_asm_handler #endif br x4 -ENDPROC(__sdei_asm_entry_trampoline) +SYM_CODE_END(__sdei_asm_entry_trampoline) NOKPROBE(__sdei_asm_entry_trampoline) /* @@ -970,21 +976,22 @@ NOKPROBE(__sdei_asm_entry_trampoline) * x2: exit_mode * x4: struct sdei_registered_event argument from registration time. */ -ENTRY(__sdei_asm_exit_trampoline) +SYM_CODE_START(__sdei_asm_exit_trampoline) ldr x4, [x4, #(SDEI_EVENT_INTREGS + S_ORIG_ADDR_LIMIT)] cbnz x4, 1f tramp_unmap_kernel tmp=x4 1: sdei_handler_exit exit_mode=x2 -ENDPROC(__sdei_asm_exit_trampoline) +SYM_CODE_END(__sdei_asm_exit_trampoline) NOKPROBE(__sdei_asm_exit_trampoline) .ltorg .popsection // .entry.tramp.text #ifdef CONFIG_RANDOMIZE_BASE .pushsection ".rodata", "a" -__sdei_asm_trampoline_next_handler: +SYM_DATA_START(__sdei_asm_trampoline_next_handler) .quad __sdei_asm_handler +SYM_DATA_END(__sdei_asm_trampoline_next_handler) .popsection // .rodata #endif /* CONFIG_RANDOMIZE_BASE */ #endif /* CONFIG_UNMAP_KERNEL_AT_EL0 */ @@ -1002,7 +1009,7 @@ __sdei_asm_trampoline_next_handler: * follow SMC-CC. We save (or retrieve) all the registers as the handler may * want them. */ -ENTRY(__sdei_asm_handler) +SYM_CODE_START(__sdei_asm_handler) stp x2, x3, [x1, #SDEI_EVENT_INTREGS + S_PC] stp x4, x5, [x1, #SDEI_EVENT_INTREGS + 16 * 2] stp x6, x7, [x1, #SDEI_EVENT_INTREGS + 16 * 3] @@ -1085,6 +1092,6 @@ alternative_else_nop_endif tramp_alias dst=x5, sym=__sdei_asm_exit_trampoline br x5 #endif -ENDPROC(__sdei_asm_handler) +SYM_CODE_END(__sdei_asm_handler) NOKPROBE(__sdei_asm_handler) #endif /* CONFIG_ARM_SDE_INTERFACE */ diff --git a/arch/arm64/kernel/head.S b/arch/arm64/kernel/head.S index 989b1944cb71..57a91032b4c2 100644 --- a/arch/arm64/kernel/head.S +++ b/arch/arm64/kernel/head.S @@ -105,7 +105,7 @@ pe_header: * x24 __primary_switch() .. relocate_kernel() * current RELR displacement */ -ENTRY(stext) +SYM_CODE_START(stext) bl preserve_boot_args bl el2_setup // Drop to EL1, w0=cpu_boot_mode adrp x23, __PHYS_OFFSET @@ -118,14 +118,15 @@ ENTRY(stext) * On return, the CPU will be ready for the MMU to be turned on and * the TCR will have been set. */ + mov x0, #ARM64_CPU_BOOT_PRIMARY bl __cpu_setup // initialise processor b __primary_switch -ENDPROC(stext) +SYM_CODE_END(stext) /* * Preserve the arguments passed by the bootloader in x0 .. x3 */ -preserve_boot_args: +SYM_CODE_START_LOCAL(preserve_boot_args) mov x21, x0 // x21=FDT adr_l x0, boot_args // record the contents of @@ -137,7 +138,7 @@ preserve_boot_args: mov x1, #0x20 // 4 x 8 bytes b __inval_dcache_area // tail call -ENDPROC(preserve_boot_args) +SYM_CODE_END(preserve_boot_args) /* * Macro to create a table entry to the next page. @@ -275,7 +276,7 @@ ENDPROC(preserve_boot_args) * - first few MB of the kernel linear mapping to jump to once the MMU has * been enabled */ -__create_page_tables: +SYM_FUNC_START_LOCAL(__create_page_tables) mov x28, lr /* @@ -403,15 +404,14 @@ __create_page_tables: bl __inval_dcache_area ret x28 -ENDPROC(__create_page_tables) - .ltorg +SYM_FUNC_END(__create_page_tables) /* * The following fragment of code is executed with the MMU enabled. * * x0 = __PHYS_OFFSET */ -__primary_switched: +SYM_FUNC_START_LOCAL(__primary_switched) adrp x4, init_thread_union add sp, x4, #THREAD_SIZE adr_l x5, init_task @@ -456,7 +456,14 @@ __primary_switched: mov x29, #0 mov x30, #0 b start_kernel -ENDPROC(__primary_switched) +SYM_FUNC_END(__primary_switched) + + .pushsection ".rodata", "a" +SYM_DATA_START(kimage_vaddr) + .quad _text - TEXT_OFFSET +SYM_DATA_END(kimage_vaddr) +EXPORT_SYMBOL(kimage_vaddr) + .popsection /* * end early head section, begin head code that is also used for @@ -464,10 +471,6 @@ ENDPROC(__primary_switched) */ .section ".idmap.text","awx" -ENTRY(kimage_vaddr) - .quad _text - TEXT_OFFSET -EXPORT_SYMBOL(kimage_vaddr) - /* * If we're fortunate enough to boot at EL2, ensure that the world is * sane before dropping to EL1. @@ -475,7 +478,7 @@ EXPORT_SYMBOL(kimage_vaddr) * Returns either BOOT_CPU_MODE_EL1 or BOOT_CPU_MODE_EL2 in w0 if * booted in EL1 or EL2 respectively. */ -ENTRY(el2_setup) +SYM_FUNC_START(el2_setup) msr SPsel, #1 // We want to use SP_EL{1,2} mrs x0, CurrentEL cmp x0, #CurrentEL_EL2 @@ -599,7 +602,7 @@ set_hcr: isb ret -install_el2_stub: +SYM_INNER_LABEL(install_el2_stub, SYM_L_LOCAL) /* * When VHE is not in use, early init of EL2 and EL1 needs to be * done here. @@ -636,13 +639,13 @@ install_el2_stub: msr elr_el2, lr mov w0, #BOOT_CPU_MODE_EL2 // This CPU booted in EL2 eret -ENDPROC(el2_setup) +SYM_FUNC_END(el2_setup) /* * Sets the __boot_cpu_mode flag depending on the CPU boot mode passed * in w0. See arch/arm64/include/asm/virt.h for more info. */ -set_cpu_boot_mode_flag: +SYM_FUNC_START_LOCAL(set_cpu_boot_mode_flag) adr_l x1, __boot_cpu_mode cmp w0, #BOOT_CPU_MODE_EL2 b.ne 1f @@ -651,7 +654,7 @@ set_cpu_boot_mode_flag: dmb sy dc ivac, x1 // Invalidate potentially stale cache line ret -ENDPROC(set_cpu_boot_mode_flag) +SYM_FUNC_END(set_cpu_boot_mode_flag) /* * These values are written with the MMU off, but read with the MMU on. @@ -667,15 +670,17 @@ ENDPROC(set_cpu_boot_mode_flag) * This is not in .bss, because we set it sufficiently early that the boot-time * zeroing of .bss would clobber it. */ -ENTRY(__boot_cpu_mode) +SYM_DATA_START(__boot_cpu_mode) .long BOOT_CPU_MODE_EL2 .long BOOT_CPU_MODE_EL1 +SYM_DATA_END(__boot_cpu_mode) /* * The booting CPU updates the failed status @__early_cpu_boot_status, * with MMU turned off. */ -ENTRY(__early_cpu_boot_status) +SYM_DATA_START(__early_cpu_boot_status) .quad 0 +SYM_DATA_END(__early_cpu_boot_status) .popsection @@ -683,7 +688,7 @@ ENTRY(__early_cpu_boot_status) * This provides a "holding pen" for platforms to hold all secondary * cores are held until we're ready for them to initialise. */ -ENTRY(secondary_holding_pen) +SYM_FUNC_START(secondary_holding_pen) bl el2_setup // Drop to EL1, w0=cpu_boot_mode bl set_cpu_boot_mode_flag mrs x0, mpidr_el1 @@ -695,31 +700,32 @@ pen: ldr x4, [x3] b.eq secondary_startup wfe b pen -ENDPROC(secondary_holding_pen) +SYM_FUNC_END(secondary_holding_pen) /* * Secondary entry point that jumps straight into the kernel. Only to * be used where CPUs are brought online dynamically by the kernel. */ -ENTRY(secondary_entry) +SYM_FUNC_START(secondary_entry) bl el2_setup // Drop to EL1 bl set_cpu_boot_mode_flag b secondary_startup -ENDPROC(secondary_entry) +SYM_FUNC_END(secondary_entry) -secondary_startup: +SYM_FUNC_START_LOCAL(secondary_startup) /* * Common entry point for secondary CPUs. */ bl __cpu_secondary_check52bitva + mov x0, #ARM64_CPU_BOOT_SECONDARY bl __cpu_setup // initialise processor adrp x1, swapper_pg_dir bl __enable_mmu ldr x8, =__secondary_switched br x8 -ENDPROC(secondary_startup) +SYM_FUNC_END(secondary_startup) -__secondary_switched: +SYM_FUNC_START_LOCAL(__secondary_switched) adr_l x5, vectors msr vbar_el1, x5 isb @@ -734,13 +740,13 @@ __secondary_switched: mov x29, #0 mov x30, #0 b secondary_start_kernel -ENDPROC(__secondary_switched) +SYM_FUNC_END(__secondary_switched) -__secondary_too_slow: +SYM_FUNC_START_LOCAL(__secondary_too_slow) wfe wfi b __secondary_too_slow -ENDPROC(__secondary_too_slow) +SYM_FUNC_END(__secondary_too_slow) /* * The booting CPU updates the failed status @__early_cpu_boot_status, @@ -772,7 +778,7 @@ ENDPROC(__secondary_too_slow) * Checks if the selected granule size is supported by the CPU. * If it isn't, park the CPU */ -ENTRY(__enable_mmu) +SYM_FUNC_START(__enable_mmu) mrs x2, ID_AA64MMFR0_EL1 ubfx x2, x2, #ID_AA64MMFR0_TGRAN_SHIFT, 4 cmp x2, #ID_AA64MMFR0_TGRAN_SUPPORTED @@ -796,9 +802,9 @@ ENTRY(__enable_mmu) dsb nsh isb ret -ENDPROC(__enable_mmu) +SYM_FUNC_END(__enable_mmu) -ENTRY(__cpu_secondary_check52bitva) +SYM_FUNC_START(__cpu_secondary_check52bitva) #ifdef CONFIG_ARM64_VA_BITS_52 ldr_l x0, vabits_actual cmp x0, #52 @@ -816,9 +822,9 @@ ENTRY(__cpu_secondary_check52bitva) #endif 2: ret -ENDPROC(__cpu_secondary_check52bitva) +SYM_FUNC_END(__cpu_secondary_check52bitva) -__no_granule_support: +SYM_FUNC_START_LOCAL(__no_granule_support) /* Indicate that this CPU can't boot and is stuck in the kernel */ update_early_cpu_boot_status \ CPU_STUCK_IN_KERNEL | CPU_STUCK_REASON_NO_GRAN, x1, x2 @@ -826,10 +832,10 @@ __no_granule_support: wfe wfi b 1b -ENDPROC(__no_granule_support) +SYM_FUNC_END(__no_granule_support) #ifdef CONFIG_RELOCATABLE -__relocate_kernel: +SYM_FUNC_START_LOCAL(__relocate_kernel) /* * Iterate over each entry in the relocation table, and apply the * relocations in place. @@ -931,10 +937,10 @@ __relocate_kernel: #endif ret -ENDPROC(__relocate_kernel) +SYM_FUNC_END(__relocate_kernel) #endif -__primary_switch: +SYM_FUNC_START_LOCAL(__primary_switch) #ifdef CONFIG_RANDOMIZE_BASE mov x19, x0 // preserve new SCTLR_EL1 value mrs x20, sctlr_el1 // preserve old SCTLR_EL1 value @@ -977,4 +983,4 @@ __primary_switch: ldr x8, =__primary_switched adrp x0, __PHYS_OFFSET br x8 -ENDPROC(__primary_switch) +SYM_FUNC_END(__primary_switch) diff --git a/arch/arm64/kernel/hibernate-asm.S b/arch/arm64/kernel/hibernate-asm.S index 38bcd4d4e43b..6532105b3e32 100644 --- a/arch/arm64/kernel/hibernate-asm.S +++ b/arch/arm64/kernel/hibernate-asm.S @@ -110,8 +110,6 @@ ENTRY(swsusp_arch_suspend_exit) cbz x24, 3f /* Do we need to re-initialise EL2? */ hvc #0 3: ret - - .ltorg ENDPROC(swsusp_arch_suspend_exit) /* diff --git a/arch/arm64/kernel/hibernate.c b/arch/arm64/kernel/hibernate.c index 590963c9c609..5b73e92c99e3 100644 --- a/arch/arm64/kernel/hibernate.c +++ b/arch/arm64/kernel/hibernate.c @@ -166,14 +166,11 @@ int arch_hibernation_header_restore(void *addr) sleep_cpu = -EINVAL; return -EINVAL; } - if (!cpu_online(sleep_cpu)) { - pr_info("Hibernated on a CPU that is offline! Bringing CPU up.\n"); - ret = cpu_up(sleep_cpu); - if (ret) { - pr_err("Failed to bring hibernate-CPU up!\n"); - sleep_cpu = -EINVAL; - return ret; - } + + ret = bringup_hibernate_cpu(sleep_cpu); + if (ret) { + sleep_cpu = -EINVAL; + return ret; } resume_hdr = *hdr; diff --git a/arch/arm64/kernel/hyp-stub.S b/arch/arm64/kernel/hyp-stub.S index 73d46070b315..e473ead806ed 100644 --- a/arch/arm64/kernel/hyp-stub.S +++ b/arch/arm64/kernel/hyp-stub.S @@ -63,7 +63,7 @@ el1_sync: beq 9f // Nothing to reset! /* Someone called kvm_call_hyp() against the hyp-stub... */ - ldr x0, =HVC_STUB_ERR + mov_q x0, HVC_STUB_ERR eret 9: mov x0, xzr diff --git a/arch/arm64/kernel/image-vars.h b/arch/arm64/kernel/image-vars.h index 25a2a9b479c2..7f06ad93fc95 100644 --- a/arch/arm64/kernel/image-vars.h +++ b/arch/arm64/kernel/image-vars.h @@ -12,7 +12,9 @@ #ifdef CONFIG_EFI -__efistub_stext_offset = stext - _text; +__efistub_kernel_size = _edata - _text; +__efistub_stext_offset = stext - _text; + /* * The EFI stub has its own symbol namespace prefixed by __efistub_, to @@ -33,7 +35,7 @@ __efistub_strnlen = __pi_strnlen; __efistub_strcmp = __pi_strcmp; __efistub_strncmp = __pi_strncmp; __efistub_strrchr = __pi_strrchr; -__efistub___flush_dcache_area = __pi___flush_dcache_area; +__efistub___clean_dcache_area_poc = __pi___clean_dcache_area_poc; #ifdef CONFIG_KASAN __efistub___memcpy = __pi_memcpy; @@ -45,6 +47,7 @@ __efistub__text = _text; __efistub__end = _end; __efistub__edata = _edata; __efistub_screen_info = screen_info; +__efistub__ctype = _ctype; #endif diff --git a/arch/arm64/kernel/machine_kexec_file.c b/arch/arm64/kernel/machine_kexec_file.c index dd3ae8081b38..b40c3b0def92 100644 --- a/arch/arm64/kernel/machine_kexec_file.c +++ b/arch/arm64/kernel/machine_kexec_file.c @@ -121,7 +121,7 @@ static int setup_dtb(struct kimage *image, /* add kaslr-seed */ ret = fdt_delprop(dtb, off, FDT_PROP_KASLR_SEED); - if (ret == -FDT_ERR_NOTFOUND) + if (ret == -FDT_ERR_NOTFOUND) ret = 0; else if (ret) goto out; diff --git a/arch/arm64/kernel/perf_event.c b/arch/arm64/kernel/perf_event.c index e40b65645c86..4d7879484cec 100644 --- a/arch/arm64/kernel/perf_event.c +++ b/arch/arm64/kernel/perf_event.c @@ -285,6 +285,17 @@ static struct attribute_group armv8_pmuv3_format_attr_group = { #define ARMV8_IDX_COUNTER_LAST(cpu_pmu) \ (ARMV8_IDX_CYCLE_COUNTER + cpu_pmu->num_events - 1) + +/* + * We unconditionally enable ARMv8.5-PMU long event counter support + * (64-bit events) where supported. Indicate if this arm_pmu has long + * event counter support. + */ +static bool armv8pmu_has_long_event(struct arm_pmu *cpu_pmu) +{ + return (cpu_pmu->pmuver >= ID_AA64DFR0_PMUVER_8_5); +} + /* * We must chain two programmable counters for 64 bit events, * except when we have allocated the 64bit cycle counter (for CPU @@ -294,9 +305,11 @@ static struct attribute_group armv8_pmuv3_format_attr_group = { static inline bool armv8pmu_event_is_chained(struct perf_event *event) { int idx = event->hw.idx; + struct arm_pmu *cpu_pmu = to_arm_pmu(event->pmu); return !WARN_ON(idx < 0) && armv8pmu_event_is_64bit(event) && + !armv8pmu_has_long_event(cpu_pmu) && (idx != ARMV8_IDX_CYCLE_COUNTER); } @@ -345,7 +358,7 @@ static inline void armv8pmu_select_counter(int idx) isb(); } -static inline u32 armv8pmu_read_evcntr(int idx) +static inline u64 armv8pmu_read_evcntr(int idx) { armv8pmu_select_counter(idx); return read_sysreg(pmxevcntr_el0); @@ -362,6 +375,44 @@ static inline u64 armv8pmu_read_hw_counter(struct perf_event *event) return val; } +/* + * The cycle counter is always a 64-bit counter. When ARMV8_PMU_PMCR_LP + * is set the event counters also become 64-bit counters. Unless the + * user has requested a long counter (attr.config1) then we want to + * interrupt upon 32-bit overflow - we achieve this by applying a bias. + */ +static bool armv8pmu_event_needs_bias(struct perf_event *event) +{ + struct arm_pmu *cpu_pmu = to_arm_pmu(event->pmu); + struct hw_perf_event *hwc = &event->hw; + int idx = hwc->idx; + + if (armv8pmu_event_is_64bit(event)) + return false; + + if (armv8pmu_has_long_event(cpu_pmu) || + idx == ARMV8_IDX_CYCLE_COUNTER) + return true; + + return false; +} + +static u64 armv8pmu_bias_long_counter(struct perf_event *event, u64 value) +{ + if (armv8pmu_event_needs_bias(event)) + value |= GENMASK(63, 32); + + return value; +} + +static u64 armv8pmu_unbias_long_counter(struct perf_event *event, u64 value) +{ + if (armv8pmu_event_needs_bias(event)) + value &= ~GENMASK(63, 32); + + return value; +} + static u64 armv8pmu_read_counter(struct perf_event *event) { struct arm_pmu *cpu_pmu = to_arm_pmu(event->pmu); @@ -377,10 +428,10 @@ static u64 armv8pmu_read_counter(struct perf_event *event) else value = armv8pmu_read_hw_counter(event); - return value; + return armv8pmu_unbias_long_counter(event, value); } -static inline void armv8pmu_write_evcntr(int idx, u32 value) +static inline void armv8pmu_write_evcntr(int idx, u64 value) { armv8pmu_select_counter(idx); write_sysreg(value, pmxevcntr_el0); @@ -405,20 +456,14 @@ static void armv8pmu_write_counter(struct perf_event *event, u64 value) struct hw_perf_event *hwc = &event->hw; int idx = hwc->idx; + value = armv8pmu_bias_long_counter(event, value); + if (!armv8pmu_counter_valid(cpu_pmu, idx)) pr_err("CPU%u writing wrong counter %d\n", smp_processor_id(), idx); - else if (idx == ARMV8_IDX_CYCLE_COUNTER) { - /* - * The cycles counter is really a 64-bit counter. - * When treating it as a 32-bit counter, we only count - * the lower 32 bits, and set the upper 32-bits so that - * we get an interrupt upon 32-bit overflow. - */ - if (!armv8pmu_event_is_64bit(event)) - value |= 0xffffffff00000000ULL; + else if (idx == ARMV8_IDX_CYCLE_COUNTER) write_sysreg(value, pmccntr_el0); - } else + else armv8pmu_write_hw_counter(event, value); } @@ -450,86 +495,74 @@ static inline void armv8pmu_write_event_type(struct perf_event *event) } } -static inline int armv8pmu_enable_counter(int idx) +static u32 armv8pmu_event_cnten_mask(struct perf_event *event) { - u32 counter = ARMV8_IDX_TO_COUNTER(idx); - write_sysreg(BIT(counter), pmcntenset_el0); - return idx; + int counter = ARMV8_IDX_TO_COUNTER(event->hw.idx); + u32 mask = BIT(counter); + + if (armv8pmu_event_is_chained(event)) + mask |= BIT(counter - 1); + return mask; +} + +static inline void armv8pmu_enable_counter(u32 mask) +{ + write_sysreg(mask, pmcntenset_el0); } static inline void armv8pmu_enable_event_counter(struct perf_event *event) { struct perf_event_attr *attr = &event->attr; - int idx = event->hw.idx; - u32 counter_bits = BIT(ARMV8_IDX_TO_COUNTER(idx)); + u32 mask = armv8pmu_event_cnten_mask(event); - if (armv8pmu_event_is_chained(event)) - counter_bits |= BIT(ARMV8_IDX_TO_COUNTER(idx - 1)); - - kvm_set_pmu_events(counter_bits, attr); + kvm_set_pmu_events(mask, attr); /* We rely on the hypervisor switch code to enable guest counters */ - if (!kvm_pmu_counter_deferred(attr)) { - armv8pmu_enable_counter(idx); - if (armv8pmu_event_is_chained(event)) - armv8pmu_enable_counter(idx - 1); - } + if (!kvm_pmu_counter_deferred(attr)) + armv8pmu_enable_counter(mask); } -static inline int armv8pmu_disable_counter(int idx) +static inline void armv8pmu_disable_counter(u32 mask) { - u32 counter = ARMV8_IDX_TO_COUNTER(idx); - write_sysreg(BIT(counter), pmcntenclr_el0); - return idx; + write_sysreg(mask, pmcntenclr_el0); } static inline void armv8pmu_disable_event_counter(struct perf_event *event) { - struct hw_perf_event *hwc = &event->hw; struct perf_event_attr *attr = &event->attr; - int idx = hwc->idx; - u32 counter_bits = BIT(ARMV8_IDX_TO_COUNTER(idx)); - - if (armv8pmu_event_is_chained(event)) - counter_bits |= BIT(ARMV8_IDX_TO_COUNTER(idx - 1)); + u32 mask = armv8pmu_event_cnten_mask(event); - kvm_clr_pmu_events(counter_bits); + kvm_clr_pmu_events(mask); /* We rely on the hypervisor switch code to disable guest counters */ - if (!kvm_pmu_counter_deferred(attr)) { - if (armv8pmu_event_is_chained(event)) - armv8pmu_disable_counter(idx - 1); - armv8pmu_disable_counter(idx); - } + if (!kvm_pmu_counter_deferred(attr)) + armv8pmu_disable_counter(mask); } -static inline int armv8pmu_enable_intens(int idx) +static inline void armv8pmu_enable_intens(u32 mask) { - u32 counter = ARMV8_IDX_TO_COUNTER(idx); - write_sysreg(BIT(counter), pmintenset_el1); - return idx; + write_sysreg(mask, pmintenset_el1); } -static inline int armv8pmu_enable_event_irq(struct perf_event *event) +static inline void armv8pmu_enable_event_irq(struct perf_event *event) { - return armv8pmu_enable_intens(event->hw.idx); + u32 counter = ARMV8_IDX_TO_COUNTER(event->hw.idx); + armv8pmu_enable_intens(BIT(counter)); } -static inline int armv8pmu_disable_intens(int idx) +static inline void armv8pmu_disable_intens(u32 mask) { - u32 counter = ARMV8_IDX_TO_COUNTER(idx); - write_sysreg(BIT(counter), pmintenclr_el1); + write_sysreg(mask, pmintenclr_el1); isb(); /* Clear the overflow flag in case an interrupt is pending. */ - write_sysreg(BIT(counter), pmovsclr_el0); + write_sysreg(mask, pmovsclr_el0); isb(); - - return idx; } -static inline int armv8pmu_disable_event_irq(struct perf_event *event) +static inline void armv8pmu_disable_event_irq(struct perf_event *event) { - return armv8pmu_disable_intens(event->hw.idx); + u32 counter = ARMV8_IDX_TO_COUNTER(event->hw.idx); + armv8pmu_disable_intens(BIT(counter)); } static inline u32 armv8pmu_getreset_flags(void) @@ -743,7 +776,8 @@ static int armv8pmu_get_event_idx(struct pmu_hw_events *cpuc, /* * Otherwise use events counters */ - if (armv8pmu_event_is_64bit(event)) + if (armv8pmu_event_is_64bit(event) && + !armv8pmu_has_long_event(cpu_pmu)) return armv8pmu_get_chain_idx(cpuc, cpu_pmu); else return armv8pmu_get_single_idx(cpuc, cpu_pmu); @@ -815,13 +849,11 @@ static int armv8pmu_filter_match(struct perf_event *event) static void armv8pmu_reset(void *info) { struct arm_pmu *cpu_pmu = (struct arm_pmu *)info; - u32 idx, nb_cnt = cpu_pmu->num_events; + u32 pmcr; /* The counter and interrupt enable registers are unknown at reset. */ - for (idx = ARMV8_IDX_CYCLE_COUNTER; idx < nb_cnt; ++idx) { - armv8pmu_disable_counter(idx); - armv8pmu_disable_intens(idx); - } + armv8pmu_disable_counter(U32_MAX); + armv8pmu_disable_intens(U32_MAX); /* Clear the counters we flip at guest entry/exit */ kvm_clr_pmu_events(U32_MAX); @@ -830,8 +862,13 @@ static void armv8pmu_reset(void *info) * Initialize & Reset PMNC. Request overflow interrupt for * 64 bit cycle counter but cheat in armv8pmu_write_counter(). */ - armv8pmu_pmcr_write(ARMV8_PMU_PMCR_P | ARMV8_PMU_PMCR_C | - ARMV8_PMU_PMCR_LC); + pmcr = ARMV8_PMU_PMCR_P | ARMV8_PMU_PMCR_C | ARMV8_PMU_PMCR_LC; + + /* Enable long event counter support where available */ + if (armv8pmu_has_long_event(cpu_pmu)) + pmcr |= ARMV8_PMU_PMCR_LP; + + armv8pmu_pmcr_write(pmcr); } static int __armv8_pmuv3_map_event(struct perf_event *event, @@ -914,6 +951,7 @@ static void __armv8pmu_probe_pmu(void *info) if (pmuver == 0xf || pmuver == 0) return; + cpu_pmu->pmuver = pmuver; probe->present = true; /* Read the nb of CNTx counters supported from PMNC */ @@ -953,7 +991,10 @@ static int armv8pmu_probe_pmu(struct arm_pmu *cpu_pmu) return probe.present ? 0 : -ENODEV; } -static int armv8_pmu_init(struct arm_pmu *cpu_pmu) +static int armv8_pmu_init(struct arm_pmu *cpu_pmu, char *name, + int (*map_event)(struct perf_event *event), + const struct attribute_group *events, + const struct attribute_group *format) { int ret = armv8pmu_probe_pmu(cpu_pmu); if (ret) @@ -972,144 +1013,127 @@ static int armv8_pmu_init(struct arm_pmu *cpu_pmu) cpu_pmu->set_event_filter = armv8pmu_set_event_filter; cpu_pmu->filter_match = armv8pmu_filter_match; + cpu_pmu->name = name; + cpu_pmu->map_event = map_event; + cpu_pmu->attr_groups[ARMPMU_ATTR_GROUP_EVENTS] = events ? + events : &armv8_pmuv3_events_attr_group; + cpu_pmu->attr_groups[ARMPMU_ATTR_GROUP_FORMATS] = format ? + format : &armv8_pmuv3_format_attr_group; + return 0; } static int armv8_pmuv3_init(struct arm_pmu *cpu_pmu) { - int ret = armv8_pmu_init(cpu_pmu); - if (ret) - return ret; - - cpu_pmu->name = "armv8_pmuv3"; - cpu_pmu->map_event = armv8_pmuv3_map_event; - cpu_pmu->attr_groups[ARMPMU_ATTR_GROUP_EVENTS] = - &armv8_pmuv3_events_attr_group; - cpu_pmu->attr_groups[ARMPMU_ATTR_GROUP_FORMATS] = - &armv8_pmuv3_format_attr_group; + return armv8_pmu_init(cpu_pmu, "armv8_pmuv3", + armv8_pmuv3_map_event, NULL, NULL); +} - return 0; +static int armv8_a34_pmu_init(struct arm_pmu *cpu_pmu) +{ + return armv8_pmu_init(cpu_pmu, "armv8_cortex_a34", + armv8_pmuv3_map_event, NULL, NULL); } static int armv8_a35_pmu_init(struct arm_pmu *cpu_pmu) { - int ret = armv8_pmu_init(cpu_pmu); - if (ret) - return ret; - - cpu_pmu->name = "armv8_cortex_a35"; - cpu_pmu->map_event = armv8_a53_map_event; - cpu_pmu->attr_groups[ARMPMU_ATTR_GROUP_EVENTS] = - &armv8_pmuv3_events_attr_group; - cpu_pmu->attr_groups[ARMPMU_ATTR_GROUP_FORMATS] = - &armv8_pmuv3_format_attr_group; - - return 0; + return armv8_pmu_init(cpu_pmu, "armv8_cortex_a35", + armv8_a53_map_event, NULL, NULL); } static int armv8_a53_pmu_init(struct arm_pmu *cpu_pmu) { - int ret = armv8_pmu_init(cpu_pmu); - if (ret) - return ret; - - cpu_pmu->name = "armv8_cortex_a53"; - cpu_pmu->map_event = armv8_a53_map_event; - cpu_pmu->attr_groups[ARMPMU_ATTR_GROUP_EVENTS] = - &armv8_pmuv3_events_attr_group; - cpu_pmu->attr_groups[ARMPMU_ATTR_GROUP_FORMATS] = - &armv8_pmuv3_format_attr_group; + return armv8_pmu_init(cpu_pmu, "armv8_cortex_a53", + armv8_a53_map_event, NULL, NULL); +} - return 0; +static int armv8_a55_pmu_init(struct arm_pmu *cpu_pmu) +{ + return armv8_pmu_init(cpu_pmu, "armv8_cortex_a55", + armv8_pmuv3_map_event, NULL, NULL); } static int armv8_a57_pmu_init(struct arm_pmu *cpu_pmu) { - int ret = armv8_pmu_init(cpu_pmu); - if (ret) - return ret; - - cpu_pmu->name = "armv8_cortex_a57"; - cpu_pmu->map_event = armv8_a57_map_event; - cpu_pmu->attr_groups[ARMPMU_ATTR_GROUP_EVENTS] = - &armv8_pmuv3_events_attr_group; - cpu_pmu->attr_groups[ARMPMU_ATTR_GROUP_FORMATS] = - &armv8_pmuv3_format_attr_group; + return armv8_pmu_init(cpu_pmu, "armv8_cortex_a57", + armv8_a57_map_event, NULL, NULL); +} - return 0; +static int armv8_a65_pmu_init(struct arm_pmu *cpu_pmu) +{ + return armv8_pmu_init(cpu_pmu, "armv8_cortex_a65", + armv8_pmuv3_map_event, NULL, NULL); } static int armv8_a72_pmu_init(struct arm_pmu *cpu_pmu) { - int ret = armv8_pmu_init(cpu_pmu); - if (ret) - return ret; - - cpu_pmu->name = "armv8_cortex_a72"; - cpu_pmu->map_event = armv8_a57_map_event; - cpu_pmu->attr_groups[ARMPMU_ATTR_GROUP_EVENTS] = - &armv8_pmuv3_events_attr_group; - cpu_pmu->attr_groups[ARMPMU_ATTR_GROUP_FORMATS] = - &armv8_pmuv3_format_attr_group; - - return 0; + return armv8_pmu_init(cpu_pmu, "armv8_cortex_a72", + armv8_a57_map_event, NULL, NULL); } static int armv8_a73_pmu_init(struct arm_pmu *cpu_pmu) { - int ret = armv8_pmu_init(cpu_pmu); - if (ret) - return ret; - - cpu_pmu->name = "armv8_cortex_a73"; - cpu_pmu->map_event = armv8_a73_map_event; - cpu_pmu->attr_groups[ARMPMU_ATTR_GROUP_EVENTS] = - &armv8_pmuv3_events_attr_group; - cpu_pmu->attr_groups[ARMPMU_ATTR_GROUP_FORMATS] = - &armv8_pmuv3_format_attr_group; + return armv8_pmu_init(cpu_pmu, "armv8_cortex_a73", + armv8_a73_map_event, NULL, NULL); +} - return 0; +static int armv8_a75_pmu_init(struct arm_pmu *cpu_pmu) +{ + return armv8_pmu_init(cpu_pmu, "armv8_cortex_a75", + armv8_pmuv3_map_event, NULL, NULL); } -static int armv8_thunder_pmu_init(struct arm_pmu *cpu_pmu) +static int armv8_a76_pmu_init(struct arm_pmu *cpu_pmu) { - int ret = armv8_pmu_init(cpu_pmu); - if (ret) - return ret; + return armv8_pmu_init(cpu_pmu, "armv8_cortex_a76", + armv8_pmuv3_map_event, NULL, NULL); +} - cpu_pmu->name = "armv8_cavium_thunder"; - cpu_pmu->map_event = armv8_thunder_map_event; - cpu_pmu->attr_groups[ARMPMU_ATTR_GROUP_EVENTS] = - &armv8_pmuv3_events_attr_group; - cpu_pmu->attr_groups[ARMPMU_ATTR_GROUP_FORMATS] = - &armv8_pmuv3_format_attr_group; +static int armv8_a77_pmu_init(struct arm_pmu *cpu_pmu) +{ + return armv8_pmu_init(cpu_pmu, "armv8_cortex_a77", + armv8_pmuv3_map_event, NULL, NULL); +} - return 0; +static int armv8_e1_pmu_init(struct arm_pmu *cpu_pmu) +{ + return armv8_pmu_init(cpu_pmu, "armv8_neoverse_e1", + armv8_pmuv3_map_event, NULL, NULL); } -static int armv8_vulcan_pmu_init(struct arm_pmu *cpu_pmu) +static int armv8_n1_pmu_init(struct arm_pmu *cpu_pmu) { - int ret = armv8_pmu_init(cpu_pmu); - if (ret) - return ret; + return armv8_pmu_init(cpu_pmu, "armv8_neoverse_n1", + armv8_pmuv3_map_event, NULL, NULL); +} - cpu_pmu->name = "armv8_brcm_vulcan"; - cpu_pmu->map_event = armv8_vulcan_map_event; - cpu_pmu->attr_groups[ARMPMU_ATTR_GROUP_EVENTS] = - &armv8_pmuv3_events_attr_group; - cpu_pmu->attr_groups[ARMPMU_ATTR_GROUP_FORMATS] = - &armv8_pmuv3_format_attr_group; +static int armv8_thunder_pmu_init(struct arm_pmu *cpu_pmu) +{ + return armv8_pmu_init(cpu_pmu, "armv8_cavium_thunder", + armv8_thunder_map_event, NULL, NULL); +} - return 0; +static int armv8_vulcan_pmu_init(struct arm_pmu *cpu_pmu) +{ + return armv8_pmu_init(cpu_pmu, "armv8_brcm_vulcan", + armv8_vulcan_map_event, NULL, NULL); } static const struct of_device_id armv8_pmu_of_device_ids[] = { {.compatible = "arm,armv8-pmuv3", .data = armv8_pmuv3_init}, + {.compatible = "arm,cortex-a34-pmu", .data = armv8_a34_pmu_init}, {.compatible = "arm,cortex-a35-pmu", .data = armv8_a35_pmu_init}, {.compatible = "arm,cortex-a53-pmu", .data = armv8_a53_pmu_init}, + {.compatible = "arm,cortex-a55-pmu", .data = armv8_a55_pmu_init}, {.compatible = "arm,cortex-a57-pmu", .data = armv8_a57_pmu_init}, + {.compatible = "arm,cortex-a65-pmu", .data = armv8_a65_pmu_init}, {.compatible = "arm,cortex-a72-pmu", .data = armv8_a72_pmu_init}, {.compatible = "arm,cortex-a73-pmu", .data = armv8_a73_pmu_init}, + {.compatible = "arm,cortex-a75-pmu", .data = armv8_a75_pmu_init}, + {.compatible = "arm,cortex-a76-pmu", .data = armv8_a76_pmu_init}, + {.compatible = "arm,cortex-a77-pmu", .data = armv8_a77_pmu_init}, + {.compatible = "arm,neoverse-e1-pmu", .data = armv8_e1_pmu_init}, + {.compatible = "arm,neoverse-n1-pmu", .data = armv8_n1_pmu_init}, {.compatible = "cavium,thunder-pmu", .data = armv8_thunder_pmu_init}, {.compatible = "brcm,vulcan-pmu", .data = armv8_vulcan_pmu_init}, {}, diff --git a/arch/arm64/kernel/pointer_auth.c b/arch/arm64/kernel/pointer_auth.c index c507b584259d..1e77736a4f66 100644 --- a/arch/arm64/kernel/pointer_auth.c +++ b/arch/arm64/kernel/pointer_auth.c @@ -9,7 +9,7 @@ int ptrauth_prctl_reset_keys(struct task_struct *tsk, unsigned long arg) { - struct ptrauth_keys *keys = &tsk->thread.keys_user; + struct ptrauth_keys_user *keys = &tsk->thread.keys_user; unsigned long addr_key_mask = PR_PAC_APIAKEY | PR_PAC_APIBKEY | PR_PAC_APDAKEY | PR_PAC_APDBKEY; unsigned long key_mask = addr_key_mask | PR_PAC_APGAKEY; @@ -18,8 +18,7 @@ int ptrauth_prctl_reset_keys(struct task_struct *tsk, unsigned long arg) return -EINVAL; if (!arg) { - ptrauth_keys_init(keys); - ptrauth_keys_switch(keys); + ptrauth_keys_init_user(keys); return 0; } @@ -41,7 +40,5 @@ int ptrauth_prctl_reset_keys(struct task_struct *tsk, unsigned long arg) if (arg & PR_PAC_APGAKEY) get_random_bytes(&keys->apga, sizeof(keys->apga)); - ptrauth_keys_switch(keys); - return 0; } diff --git a/arch/arm64/kernel/process.c b/arch/arm64/kernel/process.c index 00626057a384..56be4cbf771f 100644 --- a/arch/arm64/kernel/process.c +++ b/arch/arm64/kernel/process.c @@ -141,11 +141,11 @@ void arch_cpu_idle_dead(void) * to execute e.g. a RAM-based pin loop is not sufficient. This allows the * kexec'd kernel to use any and all RAM as it sees fit, without having to * avoid any code or data used by any SW CPU pin loop. The CPU hotplug - * functionality embodied in disable_nonboot_cpus() to achieve this. + * functionality embodied in smpt_shutdown_nonboot_cpus() to achieve this. */ void machine_shutdown(void) { - disable_nonboot_cpus(); + smp_shutdown_nonboot_cpus(reboot_cpu); } /* @@ -262,7 +262,7 @@ void __show_regs(struct pt_regs *regs) if (!user_mode(regs)) { printk("pc : %pS\n", (void *)regs->pc); - printk("lr : %pS\n", (void *)lr); + printk("lr : %pS\n", (void *)ptrauth_strip_insn_pac(lr)); } else { printk("pc : %016llx\n", regs->pc); printk("lr : %016llx\n", lr); @@ -376,6 +376,8 @@ int copy_thread_tls(unsigned long clone_flags, unsigned long stack_start, */ fpsimd_flush_task_state(p); + ptrauth_thread_init_kernel(p); + if (likely(!(p->flags & PF_KTHREAD))) { *childregs = *current_pt_regs(); childregs->regs[0] = 0; @@ -512,7 +514,6 @@ __notrace_funcgraph struct task_struct *__switch_to(struct task_struct *prev, contextidr_thread_switch(next); entry_task_switch(next); uao_thread_switch(next); - ptrauth_thread_switch(next); ssbs_thread_switch(next); /* diff --git a/arch/arm64/kernel/ptrace.c b/arch/arm64/kernel/ptrace.c index cd6e5fa48b9c..b3d3005d9515 100644 --- a/arch/arm64/kernel/ptrace.c +++ b/arch/arm64/kernel/ptrace.c @@ -999,7 +999,7 @@ static struct ptrauth_key pac_key_from_user(__uint128_t ukey) } static void pac_address_keys_to_user(struct user_pac_address_keys *ukeys, - const struct ptrauth_keys *keys) + const struct ptrauth_keys_user *keys) { ukeys->apiakey = pac_key_to_user(&keys->apia); ukeys->apibkey = pac_key_to_user(&keys->apib); @@ -1007,7 +1007,7 @@ static void pac_address_keys_to_user(struct user_pac_address_keys *ukeys, ukeys->apdbkey = pac_key_to_user(&keys->apdb); } -static void pac_address_keys_from_user(struct ptrauth_keys *keys, +static void pac_address_keys_from_user(struct ptrauth_keys_user *keys, const struct user_pac_address_keys *ukeys) { keys->apia = pac_key_from_user(ukeys->apiakey); @@ -1021,7 +1021,7 @@ static int pac_address_keys_get(struct task_struct *target, unsigned int pos, unsigned int count, void *kbuf, void __user *ubuf) { - struct ptrauth_keys *keys = &target->thread.keys_user; + struct ptrauth_keys_user *keys = &target->thread.keys_user; struct user_pac_address_keys user_keys; if (!system_supports_address_auth()) @@ -1038,7 +1038,7 @@ static int pac_address_keys_set(struct task_struct *target, unsigned int pos, unsigned int count, const void *kbuf, const void __user *ubuf) { - struct ptrauth_keys *keys = &target->thread.keys_user; + struct ptrauth_keys_user *keys = &target->thread.keys_user; struct user_pac_address_keys user_keys; int ret; @@ -1056,12 +1056,12 @@ static int pac_address_keys_set(struct task_struct *target, } static void pac_generic_keys_to_user(struct user_pac_generic_keys *ukeys, - const struct ptrauth_keys *keys) + const struct ptrauth_keys_user *keys) { ukeys->apgakey = pac_key_to_user(&keys->apga); } -static void pac_generic_keys_from_user(struct ptrauth_keys *keys, +static void pac_generic_keys_from_user(struct ptrauth_keys_user *keys, const struct user_pac_generic_keys *ukeys) { keys->apga = pac_key_from_user(ukeys->apgakey); @@ -1072,7 +1072,7 @@ static int pac_generic_keys_get(struct task_struct *target, unsigned int pos, unsigned int count, void *kbuf, void __user *ubuf) { - struct ptrauth_keys *keys = &target->thread.keys_user; + struct ptrauth_keys_user *keys = &target->thread.keys_user; struct user_pac_generic_keys user_keys; if (!system_supports_generic_auth()) @@ -1089,7 +1089,7 @@ static int pac_generic_keys_set(struct task_struct *target, unsigned int pos, unsigned int count, const void *kbuf, const void __user *ubuf) { - struct ptrauth_keys *keys = &target->thread.keys_user; + struct ptrauth_keys_user *keys = &target->thread.keys_user; struct user_pac_generic_keys user_keys; int ret; diff --git a/arch/arm64/kernel/relocate_kernel.S b/arch/arm64/kernel/relocate_kernel.S index c1d7db71a726..c40ce496c78b 100644 --- a/arch/arm64/kernel/relocate_kernel.S +++ b/arch/arm64/kernel/relocate_kernel.S @@ -41,7 +41,7 @@ ENTRY(arm64_relocate_new_kernel) cmp x0, #CurrentEL_EL2 b.ne 1f mrs x0, sctlr_el2 - ldr x1, =SCTLR_ELx_FLAGS + mov_q x1, SCTLR_ELx_FLAGS bic x0, x0, x1 pre_disable_mmu_workaround msr sctlr_el2, x0 @@ -113,8 +113,6 @@ ENTRY(arm64_relocate_new_kernel) ENDPROC(arm64_relocate_new_kernel) -.ltorg - .align 3 /* To keep the 64-bit values below naturally aligned. */ .Lcopy_end: diff --git a/arch/arm64/kernel/setup.c b/arch/arm64/kernel/setup.c index a34890bf309f..3fd2c11c09fc 100644 --- a/arch/arm64/kernel/setup.c +++ b/arch/arm64/kernel/setup.c @@ -344,7 +344,7 @@ void __init setup_arch(char **cmdline_p) else psci_acpi_init(); - cpu_read_bootcpu_ops(); + init_bootcpu_ops(); smp_init_cpus(); smp_build_mpidr_hash(); @@ -371,8 +371,10 @@ void __init setup_arch(char **cmdline_p) static inline bool cpu_can_disable(unsigned int cpu) { #ifdef CONFIG_HOTPLUG_CPU - if (cpu_ops[cpu] && cpu_ops[cpu]->cpu_can_disable) - return cpu_ops[cpu]->cpu_can_disable(cpu); + const struct cpu_operations *ops = get_cpu_ops(cpu); + + if (ops && ops->cpu_can_disable) + return ops->cpu_can_disable(cpu); #endif return false; } diff --git a/arch/arm64/kernel/sleep.S b/arch/arm64/kernel/sleep.S index f5b04dd8a710..7b2f2e650c44 100644 --- a/arch/arm64/kernel/sleep.S +++ b/arch/arm64/kernel/sleep.S @@ -3,6 +3,7 @@ #include <linux/linkage.h> #include <asm/asm-offsets.h> #include <asm/assembler.h> +#include <asm/smp.h> .text /* @@ -99,6 +100,7 @@ ENDPROC(__cpu_suspend_enter) .pushsection ".idmap.text", "awx" ENTRY(cpu_resume) bl el2_setup // if in EL2 drop to EL1 cleanly + mov x0, #ARM64_CPU_RUNTIME bl __cpu_setup /* enable the MMU early - so we can access sleep_save_stash by va */ adrp x1, swapper_pg_dir diff --git a/arch/arm64/kernel/smp.c b/arch/arm64/kernel/smp.c index d4ed9a19d8fe..061f60fe452f 100644 --- a/arch/arm64/kernel/smp.c +++ b/arch/arm64/kernel/smp.c @@ -93,8 +93,10 @@ static inline int op_cpu_kill(unsigned int cpu) */ static int boot_secondary(unsigned int cpu, struct task_struct *idle) { - if (cpu_ops[cpu]->cpu_boot) - return cpu_ops[cpu]->cpu_boot(cpu); + const struct cpu_operations *ops = get_cpu_ops(cpu); + + if (ops->cpu_boot) + return ops->cpu_boot(cpu); return -EOPNOTSUPP; } @@ -112,63 +114,66 @@ int __cpu_up(unsigned int cpu, struct task_struct *idle) */ secondary_data.task = idle; secondary_data.stack = task_stack_page(idle) + THREAD_SIZE; +#if defined(CONFIG_ARM64_PTR_AUTH) + secondary_data.ptrauth_key.apia.lo = idle->thread.keys_kernel.apia.lo; + secondary_data.ptrauth_key.apia.hi = idle->thread.keys_kernel.apia.hi; +#endif update_cpu_boot_status(CPU_MMU_OFF); __flush_dcache_area(&secondary_data, sizeof(secondary_data)); - /* - * Now bring the CPU into our world. - */ + /* Now bring the CPU into our world */ ret = boot_secondary(cpu, idle); - if (ret == 0) { - /* - * CPU was successfully started, wait for it to come online or - * time out. - */ - wait_for_completion_timeout(&cpu_running, - msecs_to_jiffies(5000)); - - if (!cpu_online(cpu)) { - pr_crit("CPU%u: failed to come online\n", cpu); - ret = -EIO; - } - } else { + if (ret) { pr_err("CPU%u: failed to boot: %d\n", cpu, ret); return ret; } + /* + * CPU was successfully started, wait for it to come online or + * time out. + */ + wait_for_completion_timeout(&cpu_running, + msecs_to_jiffies(5000)); + if (cpu_online(cpu)) + return 0; + + pr_crit("CPU%u: failed to come online\n", cpu); secondary_data.task = NULL; secondary_data.stack = NULL; +#if defined(CONFIG_ARM64_PTR_AUTH) + secondary_data.ptrauth_key.apia.lo = 0; + secondary_data.ptrauth_key.apia.hi = 0; +#endif __flush_dcache_area(&secondary_data, sizeof(secondary_data)); status = READ_ONCE(secondary_data.status); - if (ret && status) { - - if (status == CPU_MMU_OFF) - status = READ_ONCE(__early_cpu_boot_status); + if (status == CPU_MMU_OFF) + status = READ_ONCE(__early_cpu_boot_status); - switch (status & CPU_BOOT_STATUS_MASK) { - default: - pr_err("CPU%u: failed in unknown state : 0x%lx\n", - cpu, status); - cpus_stuck_in_kernel++; - break; - case CPU_KILL_ME: - if (!op_cpu_kill(cpu)) { - pr_crit("CPU%u: died during early boot\n", cpu); - break; - } - pr_crit("CPU%u: may not have shut down cleanly\n", cpu); - /* Fall through */ - case CPU_STUCK_IN_KERNEL: - pr_crit("CPU%u: is stuck in kernel\n", cpu); - if (status & CPU_STUCK_REASON_52_BIT_VA) - pr_crit("CPU%u: does not support 52-bit VAs\n", cpu); - if (status & CPU_STUCK_REASON_NO_GRAN) - pr_crit("CPU%u: does not support %luK granule \n", cpu, PAGE_SIZE / SZ_1K); - cpus_stuck_in_kernel++; + switch (status & CPU_BOOT_STATUS_MASK) { + default: + pr_err("CPU%u: failed in unknown state : 0x%lx\n", + cpu, status); + cpus_stuck_in_kernel++; + break; + case CPU_KILL_ME: + if (!op_cpu_kill(cpu)) { + pr_crit("CPU%u: died during early boot\n", cpu); break; - case CPU_PANIC_KERNEL: - panic("CPU%u detected unsupported configuration\n", cpu); } + pr_crit("CPU%u: may not have shut down cleanly\n", cpu); + /* Fall through */ + case CPU_STUCK_IN_KERNEL: + pr_crit("CPU%u: is stuck in kernel\n", cpu); + if (status & CPU_STUCK_REASON_52_BIT_VA) + pr_crit("CPU%u: does not support 52-bit VAs\n", cpu); + if (status & CPU_STUCK_REASON_NO_GRAN) { + pr_crit("CPU%u: does not support %luK granule\n", + cpu, PAGE_SIZE / SZ_1K); + } + cpus_stuck_in_kernel++; + break; + case CPU_PANIC_KERNEL: + panic("CPU%u detected unsupported configuration\n", cpu); } return ret; @@ -196,6 +201,7 @@ asmlinkage notrace void secondary_start_kernel(void) { u64 mpidr = read_cpuid_mpidr() & MPIDR_HWID_BITMASK; struct mm_struct *mm = &init_mm; + const struct cpu_operations *ops; unsigned int cpu; cpu = task_cpu(current); @@ -227,8 +233,9 @@ asmlinkage notrace void secondary_start_kernel(void) */ check_local_cpu_capabilities(); - if (cpu_ops[cpu]->cpu_postboot) - cpu_ops[cpu]->cpu_postboot(); + ops = get_cpu_ops(cpu); + if (ops->cpu_postboot) + ops->cpu_postboot(); /* * Log the CPU info before it is marked online and might get read. @@ -266,19 +273,21 @@ asmlinkage notrace void secondary_start_kernel(void) #ifdef CONFIG_HOTPLUG_CPU static int op_cpu_disable(unsigned int cpu) { + const struct cpu_operations *ops = get_cpu_ops(cpu); + /* * If we don't have a cpu_die method, abort before we reach the point * of no return. CPU0 may not have an cpu_ops, so test for it. */ - if (!cpu_ops[cpu] || !cpu_ops[cpu]->cpu_die) + if (!ops || !ops->cpu_die) return -EOPNOTSUPP; /* * We may need to abort a hot unplug for some other mechanism-specific * reason. */ - if (cpu_ops[cpu]->cpu_disable) - return cpu_ops[cpu]->cpu_disable(cpu); + if (ops->cpu_disable) + return ops->cpu_disable(cpu); return 0; } @@ -314,15 +323,17 @@ int __cpu_disable(void) static int op_cpu_kill(unsigned int cpu) { + const struct cpu_operations *ops = get_cpu_ops(cpu); + /* * If we have no means of synchronising with the dying CPU, then assume * that it is really dead. We can only wait for an arbitrary length of * time and hope that it's dead, so let's skip the wait and just hope. */ - if (!cpu_ops[cpu]->cpu_kill) + if (!ops->cpu_kill) return 0; - return cpu_ops[cpu]->cpu_kill(cpu); + return ops->cpu_kill(cpu); } /* @@ -357,6 +368,7 @@ void __cpu_die(unsigned int cpu) void cpu_die(void) { unsigned int cpu = smp_processor_id(); + const struct cpu_operations *ops = get_cpu_ops(cpu); idle_task_exit(); @@ -370,12 +382,22 @@ void cpu_die(void) * mechanism must perform all required cache maintenance to ensure that * no dirty lines are lost in the process of shutting down the CPU. */ - cpu_ops[cpu]->cpu_die(cpu); + ops->cpu_die(cpu); BUG(); } #endif +static void __cpu_try_die(int cpu) +{ +#ifdef CONFIG_HOTPLUG_CPU + const struct cpu_operations *ops = get_cpu_ops(cpu); + + if (ops && ops->cpu_die) + ops->cpu_die(cpu); +#endif +} + /* * Kill the calling secondary CPU, early in bringup before it is turned * online. @@ -389,12 +411,11 @@ void cpu_die_early(void) /* Mark this CPU absent */ set_cpu_present(cpu, 0); -#ifdef CONFIG_HOTPLUG_CPU - update_cpu_boot_status(CPU_KILL_ME); - /* Check if we can park ourselves */ - if (cpu_ops[cpu] && cpu_ops[cpu]->cpu_die) - cpu_ops[cpu]->cpu_die(cpu); -#endif + if (IS_ENABLED(CONFIG_HOTPLUG_CPU)) { + update_cpu_boot_status(CPU_KILL_ME); + __cpu_try_die(cpu); + } + update_cpu_boot_status(CPU_STUCK_IN_KERNEL); cpu_park_loop(); @@ -488,10 +509,13 @@ static bool __init is_mpidr_duplicate(unsigned int cpu, u64 hwid) */ static int __init smp_cpu_setup(int cpu) { - if (cpu_read_ops(cpu)) + const struct cpu_operations *ops; + + if (init_cpu_ops(cpu)) return -ENODEV; - if (cpu_ops[cpu]->cpu_init(cpu)) + ops = get_cpu_ops(cpu); + if (ops->cpu_init(cpu)) return -ENODEV; set_cpu_possible(cpu, true); @@ -714,6 +738,7 @@ void __init smp_init_cpus(void) void __init smp_prepare_cpus(unsigned int max_cpus) { + const struct cpu_operations *ops; int err; unsigned int cpu; unsigned int this_cpu; @@ -744,10 +769,11 @@ void __init smp_prepare_cpus(unsigned int max_cpus) if (cpu == smp_processor_id()) continue; - if (!cpu_ops[cpu]) + ops = get_cpu_ops(cpu); + if (!ops) continue; - err = cpu_ops[cpu]->cpu_prepare(cpu); + err = ops->cpu_prepare(cpu); if (err) continue; @@ -863,10 +889,8 @@ static void ipi_cpu_crash_stop(unsigned int cpu, struct pt_regs *regs) local_irq_disable(); sdei_mask_local_cpu(); -#ifdef CONFIG_HOTPLUG_CPU - if (cpu_ops[cpu]->cpu_die) - cpu_ops[cpu]->cpu_die(cpu); -#endif + if (IS_ENABLED(CONFIG_HOTPLUG_CPU)) + __cpu_try_die(cpu); /* just in case */ cpu_park_loop(); @@ -958,11 +982,22 @@ void tick_broadcast(const struct cpumask *mask) } #endif +/* + * The number of CPUs online, not counting this CPU (which may not be + * fully online and so not counted in num_online_cpus()). + */ +static inline unsigned int num_other_online_cpus(void) +{ + unsigned int this_cpu_online = cpu_online(smp_processor_id()); + + return num_online_cpus() - this_cpu_online; +} + void smp_send_stop(void) { unsigned long timeout; - if (num_online_cpus() > 1) { + if (num_other_online_cpus()) { cpumask_t mask; cpumask_copy(&mask, cpu_online_mask); @@ -975,10 +1010,10 @@ void smp_send_stop(void) /* Wait up to one second for other CPUs to stop */ timeout = USEC_PER_SEC; - while (num_online_cpus() > 1 && timeout--) + while (num_other_online_cpus() && timeout--) udelay(1); - if (num_online_cpus() > 1) + if (num_other_online_cpus()) pr_warn("SMP: failed to stop secondary CPUs %*pbl\n", cpumask_pr_args(cpu_online_mask)); @@ -1001,7 +1036,11 @@ void crash_smp_send_stop(void) cpus_stopped = 1; - if (num_online_cpus() == 1) { + /* + * If this cpu is the only one alive at this point in time, online or + * not, there are no stop messages to be sent around, so just back out. + */ + if (num_other_online_cpus() == 0) { sdei_mask_local_cpu(); return; } @@ -1009,7 +1048,7 @@ void crash_smp_send_stop(void) cpumask_copy(&mask, cpu_online_mask); cpumask_clear_cpu(smp_processor_id(), &mask); - atomic_set(&waiting_for_crash_ipi, num_online_cpus() - 1); + atomic_set(&waiting_for_crash_ipi, num_other_online_cpus()); pr_crit("SMP: stopping secondary CPUs\n"); smp_cross_call(&mask, IPI_CPU_CRASH_STOP); @@ -1044,8 +1083,9 @@ static bool have_cpu_die(void) { #ifdef CONFIG_HOTPLUG_CPU int any_cpu = raw_smp_processor_id(); + const struct cpu_operations *ops = get_cpu_ops(any_cpu); - if (cpu_ops[any_cpu] && cpu_ops[any_cpu]->cpu_die) + if (ops && ops->cpu_die) return true; #endif return false; diff --git a/arch/arm64/kernel/stacktrace.c b/arch/arm64/kernel/stacktrace.c index a336cb124320..139679c745bf 100644 --- a/arch/arm64/kernel/stacktrace.c +++ b/arch/arm64/kernel/stacktrace.c @@ -14,6 +14,7 @@ #include <linux/stacktrace.h> #include <asm/irq.h> +#include <asm/pointer_auth.h> #include <asm/stack_pointer.h> #include <asm/stacktrace.h> @@ -86,7 +87,7 @@ int notrace unwind_frame(struct task_struct *tsk, struct stackframe *frame) #ifdef CONFIG_FUNCTION_GRAPH_TRACER if (tsk->ret_stack && - (frame->pc == (unsigned long)return_to_handler)) { + (ptrauth_strip_insn_pac(frame->pc) == (unsigned long)return_to_handler)) { struct ftrace_ret_stack *ret_stack; /* * This is a case where function graph tracer has @@ -101,6 +102,8 @@ int notrace unwind_frame(struct task_struct *tsk, struct stackframe *frame) } #endif /* CONFIG_FUNCTION_GRAPH_TRACER */ + frame->pc = ptrauth_strip_insn_pac(frame->pc); + /* * Frames created upon entry from EL0 have NULL FP and PC values, so * don't bother reporting these. Frames created by __noreturn functions diff --git a/arch/arm64/kernel/topology.c b/arch/arm64/kernel/topology.c index fa9528dfd0ce..0801a0f3c156 100644 --- a/arch/arm64/kernel/topology.c +++ b/arch/arm64/kernel/topology.c @@ -14,6 +14,7 @@ #include <linux/acpi.h> #include <linux/arch_topology.h> #include <linux/cacheinfo.h> +#include <linux/cpufreq.h> #include <linux/init.h> #include <linux/percpu.h> @@ -120,4 +121,183 @@ int __init parse_acpi_topology(void) } #endif +#ifdef CONFIG_ARM64_AMU_EXTN +#undef pr_fmt +#define pr_fmt(fmt) "AMU: " fmt + +static DEFINE_PER_CPU_READ_MOSTLY(unsigned long, arch_max_freq_scale); +static DEFINE_PER_CPU(u64, arch_const_cycles_prev); +static DEFINE_PER_CPU(u64, arch_core_cycles_prev); +static cpumask_var_t amu_fie_cpus; + +/* Initialize counter reference per-cpu variables for the current CPU */ +void init_cpu_freq_invariance_counters(void) +{ + this_cpu_write(arch_core_cycles_prev, + read_sysreg_s(SYS_AMEVCNTR0_CORE_EL0)); + this_cpu_write(arch_const_cycles_prev, + read_sysreg_s(SYS_AMEVCNTR0_CONST_EL0)); +} + +static int validate_cpu_freq_invariance_counters(int cpu) +{ + u64 max_freq_hz, ratio; + + if (!cpu_has_amu_feat(cpu)) { + pr_debug("CPU%d: counters are not supported.\n", cpu); + return -EINVAL; + } + + if (unlikely(!per_cpu(arch_const_cycles_prev, cpu) || + !per_cpu(arch_core_cycles_prev, cpu))) { + pr_debug("CPU%d: cycle counters are not enabled.\n", cpu); + return -EINVAL; + } + + /* Convert maximum frequency from KHz to Hz and validate */ + max_freq_hz = cpufreq_get_hw_max_freq(cpu) * 1000; + if (unlikely(!max_freq_hz)) { + pr_debug("CPU%d: invalid maximum frequency.\n", cpu); + return -EINVAL; + } + + /* + * Pre-compute the fixed ratio between the frequency of the constant + * counter and the maximum frequency of the CPU. + * + * const_freq + * arch_max_freq_scale = ---------------- * SCHED_CAPACITY_SCALE² + * cpuinfo_max_freq + * + * We use a factor of 2 * SCHED_CAPACITY_SHIFT -> SCHED_CAPACITY_SCALE² + * in order to ensure a good resolution for arch_max_freq_scale for + * very low arch timer frequencies (down to the KHz range which should + * be unlikely). + */ + ratio = (u64)arch_timer_get_rate() << (2 * SCHED_CAPACITY_SHIFT); + ratio = div64_u64(ratio, max_freq_hz); + if (!ratio) { + WARN_ONCE(1, "System timer frequency too low.\n"); + return -EINVAL; + } + + per_cpu(arch_max_freq_scale, cpu) = (unsigned long)ratio; + + return 0; +} + +static inline bool +enable_policy_freq_counters(int cpu, cpumask_var_t valid_cpus) +{ + struct cpufreq_policy *policy = cpufreq_cpu_get(cpu); + + if (!policy) { + pr_debug("CPU%d: No cpufreq policy found.\n", cpu); + return false; + } + + if (cpumask_subset(policy->related_cpus, valid_cpus)) + cpumask_or(amu_fie_cpus, policy->related_cpus, + amu_fie_cpus); + + cpufreq_cpu_put(policy); + + return true; +} + +static DEFINE_STATIC_KEY_FALSE(amu_fie_key); +#define amu_freq_invariant() static_branch_unlikely(&amu_fie_key) + +static int __init init_amu_fie(void) +{ + cpumask_var_t valid_cpus; + bool have_policy = false; + int ret = 0; + int cpu; + + if (!zalloc_cpumask_var(&valid_cpus, GFP_KERNEL)) + return -ENOMEM; + + if (!zalloc_cpumask_var(&amu_fie_cpus, GFP_KERNEL)) { + ret = -ENOMEM; + goto free_valid_mask; + } + + for_each_present_cpu(cpu) { + if (validate_cpu_freq_invariance_counters(cpu)) + continue; + cpumask_set_cpu(cpu, valid_cpus); + have_policy |= enable_policy_freq_counters(cpu, valid_cpus); + } + + /* + * If we are not restricted by cpufreq policies, we only enable + * the use of the AMU feature for FIE if all CPUs support AMU. + * Otherwise, enable_policy_freq_counters has already enabled + * policy cpus. + */ + if (!have_policy && cpumask_equal(valid_cpus, cpu_present_mask)) + cpumask_or(amu_fie_cpus, amu_fie_cpus, valid_cpus); + + if (!cpumask_empty(amu_fie_cpus)) { + pr_info("CPUs[%*pbl]: counters will be used for FIE.", + cpumask_pr_args(amu_fie_cpus)); + static_branch_enable(&amu_fie_key); + } + +free_valid_mask: + free_cpumask_var(valid_cpus); + + return ret; +} +late_initcall_sync(init_amu_fie); + +bool arch_freq_counters_available(struct cpumask *cpus) +{ + return amu_freq_invariant() && + cpumask_subset(cpus, amu_fie_cpus); +} + +void topology_scale_freq_tick(void) +{ + u64 prev_core_cnt, prev_const_cnt; + u64 core_cnt, const_cnt, scale; + int cpu = smp_processor_id(); + + if (!amu_freq_invariant()) + return; + + if (!cpumask_test_cpu(cpu, amu_fie_cpus)) + return; + + const_cnt = read_sysreg_s(SYS_AMEVCNTR0_CONST_EL0); + core_cnt = read_sysreg_s(SYS_AMEVCNTR0_CORE_EL0); + prev_const_cnt = this_cpu_read(arch_const_cycles_prev); + prev_core_cnt = this_cpu_read(arch_core_cycles_prev); + + if (unlikely(core_cnt <= prev_core_cnt || + const_cnt <= prev_const_cnt)) + goto store_and_exit; + + /* + * /\core arch_max_freq_scale + * scale = ------- * -------------------- + * /\const SCHED_CAPACITY_SCALE + * + * See validate_cpu_freq_invariance_counters() for details on + * arch_max_freq_scale and the use of SCHED_CAPACITY_SHIFT. + */ + scale = core_cnt - prev_core_cnt; + scale *= this_cpu_read(arch_max_freq_scale); + scale = div64_u64(scale >> SCHED_CAPACITY_SHIFT, + const_cnt - prev_const_cnt); + + scale = min_t(unsigned long, scale, SCHED_CAPACITY_SCALE); + this_cpu_write(freq_scale, (unsigned long)scale); + +store_and_exit: + this_cpu_write(arch_core_cycles_prev, core_cnt); + this_cpu_write(arch_const_cycles_prev, const_cnt); +} +#endif /* CONFIG_ARM64_AMU_EXTN */ diff --git a/arch/arm64/kernel/vdso/sigreturn.S b/arch/arm64/kernel/vdso/sigreturn.S index 0723aa398d6e..12324863d5c2 100644 --- a/arch/arm64/kernel/vdso/sigreturn.S +++ b/arch/arm64/kernel/vdso/sigreturn.S @@ -14,7 +14,7 @@ .text nop -ENTRY(__kernel_rt_sigreturn) +SYM_FUNC_START(__kernel_rt_sigreturn) .cfi_startproc .cfi_signal_frame .cfi_def_cfa x29, 0 @@ -23,4 +23,4 @@ ENTRY(__kernel_rt_sigreturn) mov x8, #__NR_rt_sigreturn svc #0 .cfi_endproc -ENDPROC(__kernel_rt_sigreturn) +SYM_FUNC_END(__kernel_rt_sigreturn) diff --git a/arch/arm64/kernel/vdso/vgettimeofday.c b/arch/arm64/kernel/vdso/vgettimeofday.c index 747635501a14..4236cf34d7d9 100644 --- a/arch/arm64/kernel/vdso/vgettimeofday.c +++ b/arch/arm64/kernel/vdso/vgettimeofday.c @@ -5,8 +5,6 @@ * Copyright (C) 2018 ARM Limited * */ -#include <linux/time.h> -#include <linux/types.h> int __kernel_clock_gettime(clockid_t clock, struct __kernel_timespec *ts) diff --git a/arch/arm64/kernel/vdso32/Makefile b/arch/arm64/kernel/vdso32/Makefile index 04df57b43cb1..3964738ebbde 100644 --- a/arch/arm64/kernel/vdso32/Makefile +++ b/arch/arm64/kernel/vdso32/Makefile @@ -10,7 +10,18 @@ include $(srctree)/lib/vdso/Makefile # Same as cc-*option, but using CC_COMPAT instead of CC ifeq ($(CONFIG_CC_IS_CLANG), y) +COMPAT_GCC_TOOLCHAIN_DIR := $(dir $(shell which $(CROSS_COMPILE_COMPAT)elfedit)) +COMPAT_GCC_TOOLCHAIN := $(realpath $(COMPAT_GCC_TOOLCHAIN_DIR)/..) + +CC_COMPAT_CLANG_FLAGS := --target=$(notdir $(CROSS_COMPILE_COMPAT:%-=%)) +CC_COMPAT_CLANG_FLAGS += --prefix=$(COMPAT_GCC_TOOLCHAIN_DIR) +CC_COMPAT_CLANG_FLAGS += -no-integrated-as -Qunused-arguments +ifneq ($(COMPAT_GCC_TOOLCHAIN),) +CC_COMPAT_CLANG_FLAGS += --gcc-toolchain=$(COMPAT_GCC_TOOLCHAIN) +endif + CC_COMPAT ?= $(CC) +CC_COMPAT += $(CC_COMPAT_CLANG_FLAGS) else CC_COMPAT ?= $(CROSS_COMPILE_COMPAT)gcc endif diff --git a/arch/arm64/kernel/vdso32/sigreturn.S b/arch/arm64/kernel/vdso32/sigreturn.S index 1a81277c2d09..620524969696 100644 --- a/arch/arm64/kernel/vdso32/sigreturn.S +++ b/arch/arm64/kernel/vdso32/sigreturn.S @@ -10,13 +10,6 @@ #include <asm/asm-offsets.h> #include <asm/unistd.h> -#define ARM_ENTRY(name) \ - ENTRY(name) - -#define ARM_ENDPROC(name) \ - .type name, %function; \ - END(name) - .text .arm @@ -24,39 +17,39 @@ .save {r0-r15} .pad #COMPAT_SIGFRAME_REGS_OFFSET nop -ARM_ENTRY(__kernel_sigreturn_arm) +SYM_FUNC_START(__kernel_sigreturn_arm) mov r7, #__NR_compat_sigreturn svc #0 .fnend -ARM_ENDPROC(__kernel_sigreturn_arm) +SYM_FUNC_END(__kernel_sigreturn_arm) .fnstart .save {r0-r15} .pad #COMPAT_RT_SIGFRAME_REGS_OFFSET nop -ARM_ENTRY(__kernel_rt_sigreturn_arm) +SYM_FUNC_START(__kernel_rt_sigreturn_arm) mov r7, #__NR_compat_rt_sigreturn svc #0 .fnend -ARM_ENDPROC(__kernel_rt_sigreturn_arm) +SYM_FUNC_END(__kernel_rt_sigreturn_arm) .thumb .fnstart .save {r0-r15} .pad #COMPAT_SIGFRAME_REGS_OFFSET nop -ARM_ENTRY(__kernel_sigreturn_thumb) +SYM_FUNC_START(__kernel_sigreturn_thumb) mov r7, #__NR_compat_sigreturn svc #0 .fnend -ARM_ENDPROC(__kernel_sigreturn_thumb) +SYM_FUNC_END(__kernel_sigreturn_thumb) .fnstart .save {r0-r15} .pad #COMPAT_RT_SIGFRAME_REGS_OFFSET nop -ARM_ENTRY(__kernel_rt_sigreturn_thumb) +SYM_FUNC_START(__kernel_rt_sigreturn_thumb) mov r7, #__NR_compat_rt_sigreturn svc #0 .fnend -ARM_ENDPROC(__kernel_rt_sigreturn_thumb) +SYM_FUNC_END(__kernel_rt_sigreturn_thumb) diff --git a/arch/arm64/kernel/vdso32/vgettimeofday.c b/arch/arm64/kernel/vdso32/vgettimeofday.c index 54fc1c2ce93f..5acff29c5991 100644 --- a/arch/arm64/kernel/vdso32/vgettimeofday.c +++ b/arch/arm64/kernel/vdso32/vgettimeofday.c @@ -5,26 +5,16 @@ * Copyright (C) 2018 ARM Limited * */ -#include <linux/time.h> -#include <linux/types.h> int __vdso_clock_gettime(clockid_t clock, struct old_timespec32 *ts) { - /* The checks below are required for ABI consistency with arm */ - if ((u32)ts >= TASK_SIZE_32) - return -EFAULT; - return __cvdso_clock_gettime32(clock, ts); } int __vdso_clock_gettime64(clockid_t clock, struct __kernel_timespec *ts) { - /* The checks below are required for ABI consistency with arm */ - if ((u32)ts >= TASK_SIZE_32) - return -EFAULT; - return __cvdso_clock_gettime(clock, ts); } @@ -37,10 +27,6 @@ int __vdso_gettimeofday(struct __kernel_old_timeval *tv, int __vdso_clock_getres(clockid_t clock_id, struct old_timespec32 *res) { - /* The checks below are required for ABI consistency with arm */ - if ((u32)res >= TASK_SIZE_32) - return -EFAULT; - return __cvdso_clock_getres_time32(clock_id, res); } diff --git a/arch/arm64/kvm/hyp-init.S b/arch/arm64/kvm/hyp-init.S index 160be2b4696d..6e6ed5581eed 100644 --- a/arch/arm64/kvm/hyp-init.S +++ b/arch/arm64/kvm/hyp-init.S @@ -18,7 +18,7 @@ .align 11 -ENTRY(__kvm_hyp_init) +SYM_CODE_START(__kvm_hyp_init) ventry __invalid // Synchronous EL2t ventry __invalid // IRQ EL2t ventry __invalid // FIQ EL2t @@ -60,7 +60,7 @@ alternative_else_nop_endif msr ttbr0_el2, x4 mrs x4, tcr_el1 - ldr x5, =TCR_EL2_MASK + mov_q x5, TCR_EL2_MASK and x4, x4, x5 mov x5, #TCR_EL2_RES1 orr x4, x4, x5 @@ -102,7 +102,7 @@ alternative_else_nop_endif * as well as the EE bit on BE. Drop the A flag since the compiler * is allowed to generate unaligned accesses. */ - ldr x4, =(SCTLR_EL2_RES1 | (SCTLR_ELx_FLAGS & ~SCTLR_ELx_A)) + mov_q x4, (SCTLR_EL2_RES1 | (SCTLR_ELx_FLAGS & ~SCTLR_ELx_A)) CPU_BE( orr x4, x4, #SCTLR_ELx_EE) msr sctlr_el2, x4 isb @@ -117,9 +117,9 @@ CPU_BE( orr x4, x4, #SCTLR_ELx_EE) /* Hello, World! */ eret -ENDPROC(__kvm_hyp_init) +SYM_CODE_END(__kvm_hyp_init) -ENTRY(__kvm_handle_stub_hvc) +SYM_CODE_START(__kvm_handle_stub_hvc) cmp x0, #HVC_SOFT_RESTART b.ne 1f @@ -142,7 +142,7 @@ reset: * case we coming via HVC_SOFT_RESTART. */ mrs x5, sctlr_el2 - ldr x6, =SCTLR_ELx_FLAGS + mov_q x6, SCTLR_ELx_FLAGS bic x5, x5, x6 // Clear SCTL_M and etc pre_disable_mmu_workaround msr sctlr_el2, x5 @@ -155,11 +155,9 @@ reset: eret 1: /* Bad stub call */ - ldr x0, =HVC_STUB_ERR + mov_q x0, HVC_STUB_ERR eret -ENDPROC(__kvm_handle_stub_hvc) - - .ltorg +SYM_CODE_END(__kvm_handle_stub_hvc) .popsection diff --git a/arch/arm64/kvm/hyp.S b/arch/arm64/kvm/hyp.S index c0094d520dff..3c79a1124af2 100644 --- a/arch/arm64/kvm/hyp.S +++ b/arch/arm64/kvm/hyp.S @@ -28,7 +28,7 @@ * and is used to implement hyp stubs in the same way as in * arch/arm64/kernel/hyp_stub.S. */ -ENTRY(__kvm_call_hyp) +SYM_FUNC_START(__kvm_call_hyp) hvc #0 ret -ENDPROC(__kvm_call_hyp) +SYM_FUNC_END(__kvm_call_hyp) diff --git a/arch/arm64/kvm/hyp/fpsimd.S b/arch/arm64/kvm/hyp/fpsimd.S index 78ff53225691..5b8ff517ff10 100644 --- a/arch/arm64/kvm/hyp/fpsimd.S +++ b/arch/arm64/kvm/hyp/fpsimd.S @@ -11,12 +11,12 @@ .text .pushsection .hyp.text, "ax" -ENTRY(__fpsimd_save_state) +SYM_FUNC_START(__fpsimd_save_state) fpsimd_save x0, 1 ret -ENDPROC(__fpsimd_save_state) +SYM_FUNC_END(__fpsimd_save_state) -ENTRY(__fpsimd_restore_state) +SYM_FUNC_START(__fpsimd_restore_state) fpsimd_restore x0, 1 ret -ENDPROC(__fpsimd_restore_state) +SYM_FUNC_END(__fpsimd_restore_state) diff --git a/arch/arm64/kvm/hyp/hyp-entry.S b/arch/arm64/kvm/hyp/hyp-entry.S index ffa68d5713f1..c2a13ab3c471 100644 --- a/arch/arm64/kvm/hyp/hyp-entry.S +++ b/arch/arm64/kvm/hyp/hyp-entry.S @@ -180,7 +180,7 @@ el2_error: eret sb -ENTRY(__hyp_do_panic) +SYM_FUNC_START(__hyp_do_panic) mov lr, #(PSR_F_BIT | PSR_I_BIT | PSR_A_BIT | PSR_D_BIT |\ PSR_MODE_EL1h) msr spsr_el2, lr @@ -188,18 +188,19 @@ ENTRY(__hyp_do_panic) msr elr_el2, lr eret sb -ENDPROC(__hyp_do_panic) +SYM_FUNC_END(__hyp_do_panic) -ENTRY(__hyp_panic) +SYM_CODE_START(__hyp_panic) get_host_ctxt x0, x1 b hyp_panic -ENDPROC(__hyp_panic) +SYM_CODE_END(__hyp_panic) .macro invalid_vector label, target = __hyp_panic .align 2 +SYM_CODE_START(\label) \label: b \target -ENDPROC(\label) +SYM_CODE_END(\label) .endm /* None of these should ever happen */ @@ -246,7 +247,7 @@ check_preamble_length 661b, 662b check_preamble_length 661b, 662b .endm -ENTRY(__kvm_hyp_vector) +SYM_CODE_START(__kvm_hyp_vector) invalid_vect el2t_sync_invalid // Synchronous EL2t invalid_vect el2t_irq_invalid // IRQ EL2t invalid_vect el2t_fiq_invalid // FIQ EL2t @@ -266,7 +267,7 @@ ENTRY(__kvm_hyp_vector) valid_vect el1_irq // IRQ 32-bit EL1 invalid_vect el1_fiq_invalid // FIQ 32-bit EL1 valid_vect el1_error // Error 32-bit EL1 -ENDPROC(__kvm_hyp_vector) +SYM_CODE_END(__kvm_hyp_vector) #ifdef CONFIG_KVM_INDIRECT_VECTORS .macro hyp_ventry @@ -311,15 +312,17 @@ alternative_cb_end .endm .align 11 -ENTRY(__bp_harden_hyp_vecs_start) +SYM_CODE_START(__bp_harden_hyp_vecs) .rept BP_HARDEN_EL2_SLOTS generate_vectors .endr -ENTRY(__bp_harden_hyp_vecs_end) +1: .org __bp_harden_hyp_vecs + __BP_HARDEN_HYP_VECS_SZ + .org 1b +SYM_CODE_END(__bp_harden_hyp_vecs) .popsection -ENTRY(__smccc_workaround_1_smc_start) +SYM_CODE_START(__smccc_workaround_1_smc) esb sub sp, sp, #(8 * 4) stp x2, x3, [sp, #(8 * 0)] @@ -329,5 +332,7 @@ ENTRY(__smccc_workaround_1_smc_start) ldp x2, x3, [sp, #(8 * 0)] ldp x0, x1, [sp, #(8 * 2)] add sp, sp, #(8 * 4) -ENTRY(__smccc_workaround_1_smc_end) +1: .org __smccc_workaround_1_smc + __SMCCC_WORKAROUND_1_SMC_SZ + .org 1b +SYM_CODE_END(__smccc_workaround_1_smc) #endif diff --git a/arch/arm64/kvm/hyp/switch.c b/arch/arm64/kvm/hyp/switch.c index 925086b46136..eaa05c3c7235 100644 --- a/arch/arm64/kvm/hyp/switch.c +++ b/arch/arm64/kvm/hyp/switch.c @@ -98,6 +98,18 @@ static void activate_traps_vhe(struct kvm_vcpu *vcpu) val = read_sysreg(cpacr_el1); val |= CPACR_EL1_TTA; val &= ~CPACR_EL1_ZEN; + + /* + * With VHE (HCR.E2H == 1), accesses to CPACR_EL1 are routed to + * CPTR_EL2. In general, CPACR_EL1 has the same layout as CPTR_EL2, + * except for some missing controls, such as TAM. + * In this case, CPTR_EL2.TAM has the same position with or without + * VHE (HCR.E2H == 1) which allows us to use here the CPTR_EL2.TAM + * shift value for trapping the AMU accesses. + */ + + val |= CPTR_EL2_TAM; + if (update_fp_enabled(vcpu)) { if (vcpu_has_sve(vcpu)) val |= CPACR_EL1_ZEN; @@ -119,7 +131,7 @@ static void __hyp_text __activate_traps_nvhe(struct kvm_vcpu *vcpu) __activate_traps_common(vcpu); val = CPTR_EL2_DEFAULT; - val |= CPTR_EL2_TTA | CPTR_EL2_TZ; + val |= CPTR_EL2_TTA | CPTR_EL2_TZ | CPTR_EL2_TAM; if (!update_fp_enabled(vcpu)) { val |= CPTR_EL2_TFP; __activate_traps_fpsimd32(vcpu); @@ -127,7 +139,7 @@ static void __hyp_text __activate_traps_nvhe(struct kvm_vcpu *vcpu) write_sysreg(val, cptr_el2); - if (cpus_have_const_cap(ARM64_WORKAROUND_SPECULATIVE_AT_NVHE)) { + if (cpus_have_final_cap(ARM64_WORKAROUND_SPECULATIVE_AT_NVHE)) { struct kvm_cpu_context *ctxt = &vcpu->arch.ctxt; isb(); @@ -146,12 +158,12 @@ static void __hyp_text __activate_traps(struct kvm_vcpu *vcpu) { u64 hcr = vcpu->arch.hcr_el2; - if (cpus_have_const_cap(ARM64_WORKAROUND_CAVIUM_TX2_219_TVM)) + if (cpus_have_final_cap(ARM64_WORKAROUND_CAVIUM_TX2_219_TVM)) hcr |= HCR_TVM; write_sysreg(hcr, hcr_el2); - if (cpus_have_const_cap(ARM64_HAS_RAS_EXTN) && (hcr & HCR_VSE)) + if (cpus_have_final_cap(ARM64_HAS_RAS_EXTN) && (hcr & HCR_VSE)) write_sysreg_s(vcpu->arch.vsesr_el2, SYS_VSESR_EL2); if (has_vhe()) @@ -181,7 +193,7 @@ static void __hyp_text __deactivate_traps_nvhe(void) { u64 mdcr_el2 = read_sysreg(mdcr_el2); - if (cpus_have_const_cap(ARM64_WORKAROUND_SPECULATIVE_AT_NVHE)) { + if (cpus_have_final_cap(ARM64_WORKAROUND_SPECULATIVE_AT_NVHE)) { u64 val; /* @@ -328,7 +340,7 @@ static bool __hyp_text __populate_fault_info(struct kvm_vcpu *vcpu) * resolve the IPA using the AT instruction. */ if (!(esr & ESR_ELx_S1PTW) && - (cpus_have_const_cap(ARM64_WORKAROUND_834220) || + (cpus_have_final_cap(ARM64_WORKAROUND_834220) || (esr & ESR_ELx_FSC_TYPE) == FSC_PERM)) { if (!__translate_far_to_hpfar(far, &hpfar)) return false; @@ -498,7 +510,7 @@ static bool __hyp_text fixup_guest_exit(struct kvm_vcpu *vcpu, u64 *exit_code) if (*exit_code != ARM_EXCEPTION_TRAP) goto exit; - if (cpus_have_const_cap(ARM64_WORKAROUND_CAVIUM_TX2_219_TVM) && + if (cpus_have_final_cap(ARM64_WORKAROUND_CAVIUM_TX2_219_TVM) && kvm_vcpu_trap_get_class(vcpu) == ESR_ELx_EC_SYS64 && handle_tx2_tvm(vcpu)) return true; @@ -555,7 +567,7 @@ exit: static inline bool __hyp_text __needs_ssbd_off(struct kvm_vcpu *vcpu) { - if (!cpus_have_const_cap(ARM64_SSBD)) + if (!cpus_have_final_cap(ARM64_SSBD)) return false; return !(vcpu->arch.workaround_flags & VCPU_WORKAROUND_2_FLAG); diff --git a/arch/arm64/kvm/hyp/sysreg-sr.c b/arch/arm64/kvm/hyp/sysreg-sr.c index 7672a978926c..75b1925763f1 100644 --- a/arch/arm64/kvm/hyp/sysreg-sr.c +++ b/arch/arm64/kvm/hyp/sysreg-sr.c @@ -71,7 +71,7 @@ static void __hyp_text __sysreg_save_el2_return_state(struct kvm_cpu_context *ct ctxt->gp_regs.regs.pc = read_sysreg_el2(SYS_ELR); ctxt->gp_regs.regs.pstate = read_sysreg_el2(SYS_SPSR); - if (cpus_have_const_cap(ARM64_HAS_RAS_EXTN)) + if (cpus_have_final_cap(ARM64_HAS_RAS_EXTN)) ctxt->sys_regs[DISR_EL1] = read_sysreg_s(SYS_VDISR_EL2); } @@ -118,7 +118,7 @@ static void __hyp_text __sysreg_restore_el1_state(struct kvm_cpu_context *ctxt) write_sysreg(ctxt->sys_regs[MPIDR_EL1], vmpidr_el2); write_sysreg(ctxt->sys_regs[CSSELR_EL1], csselr_el1); - if (!cpus_have_const_cap(ARM64_WORKAROUND_SPECULATIVE_AT_NVHE)) { + if (!cpus_have_final_cap(ARM64_WORKAROUND_SPECULATIVE_AT_NVHE)) { write_sysreg_el1(ctxt->sys_regs[SCTLR_EL1], SYS_SCTLR); write_sysreg_el1(ctxt->sys_regs[TCR_EL1], SYS_TCR); } else if (!ctxt->__hyp_running_vcpu) { @@ -149,7 +149,7 @@ static void __hyp_text __sysreg_restore_el1_state(struct kvm_cpu_context *ctxt) write_sysreg(ctxt->sys_regs[PAR_EL1], par_el1); write_sysreg(ctxt->sys_regs[TPIDR_EL1], tpidr_el1); - if (cpus_have_const_cap(ARM64_WORKAROUND_SPECULATIVE_AT_NVHE) && + if (cpus_have_final_cap(ARM64_WORKAROUND_SPECULATIVE_AT_NVHE) && ctxt->__hyp_running_vcpu) { /* * Must only be done for host registers, hence the context @@ -194,7 +194,7 @@ __sysreg_restore_el2_return_state(struct kvm_cpu_context *ctxt) write_sysreg_el2(ctxt->gp_regs.regs.pc, SYS_ELR); write_sysreg_el2(pstate, SYS_SPSR); - if (cpus_have_const_cap(ARM64_HAS_RAS_EXTN)) + if (cpus_have_final_cap(ARM64_HAS_RAS_EXTN)) write_sysreg_s(ctxt->sys_regs[DISR_EL1], SYS_VDISR_EL2); } diff --git a/arch/arm64/kvm/hyp/tlb.c b/arch/arm64/kvm/hyp/tlb.c index 92f560e3e1aa..ceaddbe4279f 100644 --- a/arch/arm64/kvm/hyp/tlb.c +++ b/arch/arm64/kvm/hyp/tlb.c @@ -23,7 +23,7 @@ static void __hyp_text __tlb_switch_to_guest_vhe(struct kvm *kvm, local_irq_save(cxt->flags); - if (cpus_have_const_cap(ARM64_WORKAROUND_SPECULATIVE_AT_VHE)) { + if (cpus_have_final_cap(ARM64_WORKAROUND_SPECULATIVE_AT_VHE)) { /* * For CPUs that are affected by ARM errata 1165522 or 1530923, * we cannot trust stage-1 to be in a correct state at that @@ -63,7 +63,7 @@ static void __hyp_text __tlb_switch_to_guest_vhe(struct kvm *kvm, static void __hyp_text __tlb_switch_to_guest_nvhe(struct kvm *kvm, struct tlb_inv_context *cxt) { - if (cpus_have_const_cap(ARM64_WORKAROUND_SPECULATIVE_AT_NVHE)) { + if (cpus_have_final_cap(ARM64_WORKAROUND_SPECULATIVE_AT_NVHE)) { u64 val; /* @@ -103,7 +103,7 @@ static void __hyp_text __tlb_switch_to_host_vhe(struct kvm *kvm, write_sysreg(HCR_HOST_VHE_FLAGS, hcr_el2); isb(); - if (cpus_have_const_cap(ARM64_WORKAROUND_SPECULATIVE_AT_VHE)) { + if (cpus_have_final_cap(ARM64_WORKAROUND_SPECULATIVE_AT_VHE)) { /* Restore the registers to what they were */ write_sysreg_el1(cxt->tcr, SYS_TCR); write_sysreg_el1(cxt->sctlr, SYS_SCTLR); @@ -117,7 +117,7 @@ static void __hyp_text __tlb_switch_to_host_nvhe(struct kvm *kvm, { write_sysreg(0, vttbr_el2); - if (cpus_have_const_cap(ARM64_WORKAROUND_SPECULATIVE_AT_NVHE)) { + if (cpus_have_final_cap(ARM64_WORKAROUND_SPECULATIVE_AT_NVHE)) { /* Ensure write of the host VMID */ isb(); /* Restore the host's TCR_EL1 */ diff --git a/arch/arm64/kvm/sys_regs.c b/arch/arm64/kvm/sys_regs.c index 3e909b117f0c..090f46d3add1 100644 --- a/arch/arm64/kvm/sys_regs.c +++ b/arch/arm64/kvm/sys_regs.c @@ -1003,6 +1003,20 @@ static bool access_pmuserenr(struct kvm_vcpu *vcpu, struct sys_reg_params *p, { SYS_DESC(SYS_PMEVTYPERn_EL0(n)), \ access_pmu_evtyper, reset_unknown, (PMEVTYPER0_EL0 + n), } +static bool access_amu(struct kvm_vcpu *vcpu, struct sys_reg_params *p, + const struct sys_reg_desc *r) +{ + kvm_inject_undefined(vcpu); + + return false; +} + +/* Macro to expand the AMU counter and type registers*/ +#define AMU_AMEVCNTR0_EL0(n) { SYS_DESC(SYS_AMEVCNTR0_EL0(n)), access_amu } +#define AMU_AMEVTYPE0_EL0(n) { SYS_DESC(SYS_AMEVTYPE0_EL0(n)), access_amu } +#define AMU_AMEVCNTR1_EL0(n) { SYS_DESC(SYS_AMEVCNTR1_EL0(n)), access_amu } +#define AMU_AMEVTYPE1_EL0(n) { SYS_DESC(SYS_AMEVTYPE1_EL0(n)), access_amu } + static bool trap_ptrauth(struct kvm_vcpu *vcpu, struct sys_reg_params *p, const struct sys_reg_desc *rd) @@ -1078,13 +1092,25 @@ static u64 read_id_reg(const struct kvm_vcpu *vcpu, (u32)r->CRn, (u32)r->CRm, (u32)r->Op2); u64 val = raz ? 0 : read_sanitised_ftr_reg(id); - if (id == SYS_ID_AA64PFR0_EL1 && !vcpu_has_sve(vcpu)) { - val &= ~(0xfUL << ID_AA64PFR0_SVE_SHIFT); + if (id == SYS_ID_AA64PFR0_EL1) { + if (!vcpu_has_sve(vcpu)) + val &= ~(0xfUL << ID_AA64PFR0_SVE_SHIFT); + val &= ~(0xfUL << ID_AA64PFR0_AMU_SHIFT); } else if (id == SYS_ID_AA64ISAR1_EL1 && !vcpu_has_ptrauth(vcpu)) { val &= ~((0xfUL << ID_AA64ISAR1_APA_SHIFT) | (0xfUL << ID_AA64ISAR1_API_SHIFT) | (0xfUL << ID_AA64ISAR1_GPA_SHIFT) | (0xfUL << ID_AA64ISAR1_GPI_SHIFT)); + } else if (id == SYS_ID_AA64DFR0_EL1) { + /* Limit guests to PMUv3 for ARMv8.1 */ + val = cpuid_feature_cap_perfmon_field(val, + ID_AA64DFR0_PMUVER_SHIFT, + ID_AA64DFR0_PMUVER_8_1); + } else if (id == SYS_ID_DFR0_EL1) { + /* Limit guests to PMUv3 for ARMv8.1 */ + val = cpuid_feature_cap_perfmon_field(val, + ID_DFR0_PERFMON_SHIFT, + ID_DFR0_PERFMON_8_1); } return val; @@ -1565,6 +1591,79 @@ static const struct sys_reg_desc sys_reg_descs[] = { { SYS_DESC(SYS_TPIDR_EL0), NULL, reset_unknown, TPIDR_EL0 }, { SYS_DESC(SYS_TPIDRRO_EL0), NULL, reset_unknown, TPIDRRO_EL0 }, + { SYS_DESC(SYS_AMCR_EL0), access_amu }, + { SYS_DESC(SYS_AMCFGR_EL0), access_amu }, + { SYS_DESC(SYS_AMCGCR_EL0), access_amu }, + { SYS_DESC(SYS_AMUSERENR_EL0), access_amu }, + { SYS_DESC(SYS_AMCNTENCLR0_EL0), access_amu }, + { SYS_DESC(SYS_AMCNTENSET0_EL0), access_amu }, + { SYS_DESC(SYS_AMCNTENCLR1_EL0), access_amu }, + { SYS_DESC(SYS_AMCNTENSET1_EL0), access_amu }, + AMU_AMEVCNTR0_EL0(0), + AMU_AMEVCNTR0_EL0(1), + AMU_AMEVCNTR0_EL0(2), + AMU_AMEVCNTR0_EL0(3), + AMU_AMEVCNTR0_EL0(4), + AMU_AMEVCNTR0_EL0(5), + AMU_AMEVCNTR0_EL0(6), + AMU_AMEVCNTR0_EL0(7), + AMU_AMEVCNTR0_EL0(8), + AMU_AMEVCNTR0_EL0(9), + AMU_AMEVCNTR0_EL0(10), + AMU_AMEVCNTR0_EL0(11), + AMU_AMEVCNTR0_EL0(12), + AMU_AMEVCNTR0_EL0(13), + AMU_AMEVCNTR0_EL0(14), + AMU_AMEVCNTR0_EL0(15), + AMU_AMEVTYPE0_EL0(0), + AMU_AMEVTYPE0_EL0(1), + AMU_AMEVTYPE0_EL0(2), + AMU_AMEVTYPE0_EL0(3), + AMU_AMEVTYPE0_EL0(4), + AMU_AMEVTYPE0_EL0(5), + AMU_AMEVTYPE0_EL0(6), + AMU_AMEVTYPE0_EL0(7), + AMU_AMEVTYPE0_EL0(8), + AMU_AMEVTYPE0_EL0(9), + AMU_AMEVTYPE0_EL0(10), + AMU_AMEVTYPE0_EL0(11), + AMU_AMEVTYPE0_EL0(12), + AMU_AMEVTYPE0_EL0(13), + AMU_AMEVTYPE0_EL0(14), + AMU_AMEVTYPE0_EL0(15), + AMU_AMEVCNTR1_EL0(0), + AMU_AMEVCNTR1_EL0(1), + AMU_AMEVCNTR1_EL0(2), + AMU_AMEVCNTR1_EL0(3), + AMU_AMEVCNTR1_EL0(4), + AMU_AMEVCNTR1_EL0(5), + AMU_AMEVCNTR1_EL0(6), + AMU_AMEVCNTR1_EL0(7), + AMU_AMEVCNTR1_EL0(8), + AMU_AMEVCNTR1_EL0(9), + AMU_AMEVCNTR1_EL0(10), + AMU_AMEVCNTR1_EL0(11), + AMU_AMEVCNTR1_EL0(12), + AMU_AMEVCNTR1_EL0(13), + AMU_AMEVCNTR1_EL0(14), + AMU_AMEVCNTR1_EL0(15), + AMU_AMEVTYPE1_EL0(0), + AMU_AMEVTYPE1_EL0(1), + AMU_AMEVTYPE1_EL0(2), + AMU_AMEVTYPE1_EL0(3), + AMU_AMEVTYPE1_EL0(4), + AMU_AMEVTYPE1_EL0(5), + AMU_AMEVTYPE1_EL0(6), + AMU_AMEVTYPE1_EL0(7), + AMU_AMEVTYPE1_EL0(8), + AMU_AMEVTYPE1_EL0(9), + AMU_AMEVTYPE1_EL0(10), + AMU_AMEVTYPE1_EL0(11), + AMU_AMEVTYPE1_EL0(12), + AMU_AMEVTYPE1_EL0(13), + AMU_AMEVTYPE1_EL0(14), + AMU_AMEVTYPE1_EL0(15), + { SYS_DESC(SYS_CNTP_TVAL_EL0), access_arch_timer }, { SYS_DESC(SYS_CNTP_CTL_EL0), access_arch_timer }, { SYS_DESC(SYS_CNTP_CVAL_EL0), access_arch_timer }, diff --git a/arch/arm64/lib/csum.c b/arch/arm64/lib/csum.c index 1f82c66b32ea..60eccae2abad 100644 --- a/arch/arm64/lib/csum.c +++ b/arch/arm64/lib/csum.c @@ -124,3 +124,30 @@ unsigned int do_csum(const unsigned char *buff, int len) return sum >> 16; } + +__sum16 csum_ipv6_magic(const struct in6_addr *saddr, + const struct in6_addr *daddr, + __u32 len, __u8 proto, __wsum csum) +{ + __uint128_t src, dst; + u64 sum = (__force u64)csum; + + src = *(const __uint128_t *)saddr->s6_addr; + dst = *(const __uint128_t *)daddr->s6_addr; + + sum += (__force u32)htonl(len); +#ifdef __LITTLE_ENDIAN + sum += (u32)proto << 24; +#else + sum += proto; +#endif + src += (src >> 64) | (src << 64); + dst += (dst >> 64) | (dst << 64); + + sum = accumulate(sum, src >> 64); + sum = accumulate(sum, dst >> 64); + + sum += ((sum >> 32) | (sum << 32)); + return csum_fold((__force __wsum)(sum >> 32)); +} +EXPORT_SYMBOL(csum_ipv6_magic); diff --git a/arch/arm64/lib/strcmp.S b/arch/arm64/lib/strcmp.S index 4767540d1b94..4e79566726c8 100644 --- a/arch/arm64/lib/strcmp.S +++ b/arch/arm64/lib/strcmp.S @@ -186,7 +186,7 @@ CPU_LE( rev data2, data2 ) * as carry-propagation can corrupt the upper bits if the trailing * bytes in the string contain 0x01. * However, if there is no NUL byte in the dword, we can generate - * the result directly. We ca not just subtract the bytes as the + * the result directly. We cannot just subtract the bytes as the * MSB might be significant. */ CPU_BE( cbnz has_nul, 1f ) diff --git a/arch/arm64/mm/context.c b/arch/arm64/mm/context.c index 8ef73e89d514..9b26f9a88724 100644 --- a/arch/arm64/mm/context.c +++ b/arch/arm64/mm/context.c @@ -6,6 +6,7 @@ * Copyright (C) 2012 ARM Ltd. */ +#include <linux/bitfield.h> #include <linux/bitops.h> #include <linux/sched.h> #include <linux/slab.h> @@ -254,20 +255,59 @@ switch_mm_fastpath: /* Errata workaround post TTBRx_EL1 update. */ asmlinkage void post_ttbr_update_workaround(void) { + if (!IS_ENABLED(CONFIG_CAVIUM_ERRATUM_27456)) + return; + asm(ALTERNATIVE("nop; nop; nop", "ic iallu; dsb nsh; isb", - ARM64_WORKAROUND_CAVIUM_27456, - CONFIG_CAVIUM_ERRATUM_27456)); + ARM64_WORKAROUND_CAVIUM_27456)); } -static int asids_init(void) +void cpu_do_switch_mm(phys_addr_t pgd_phys, struct mm_struct *mm) { - asid_bits = get_cpu_asid_bits(); + unsigned long ttbr1 = read_sysreg(ttbr1_el1); + unsigned long asid = ASID(mm); + unsigned long ttbr0 = phys_to_ttbr(pgd_phys); + + /* Skip CNP for the reserved ASID */ + if (system_supports_cnp() && asid) + ttbr0 |= TTBR_CNP_BIT; + + /* SW PAN needs a copy of the ASID in TTBR0 for entry */ + if (IS_ENABLED(CONFIG_ARM64_SW_TTBR0_PAN)) + ttbr0 |= FIELD_PREP(TTBR_ASID_MASK, asid); + + /* Set ASID in TTBR1 since TCR.A1 is set */ + ttbr1 &= ~TTBR_ASID_MASK; + ttbr1 |= FIELD_PREP(TTBR_ASID_MASK, asid); + + write_sysreg(ttbr1, ttbr1_el1); + isb(); + write_sysreg(ttbr0, ttbr0_el1); + isb(); + post_ttbr_update_workaround(); +} + +static int asids_update_limit(void) +{ + unsigned long num_available_asids = NUM_USER_ASIDS; + + if (arm64_kernel_unmapped_at_el0()) + num_available_asids /= 2; /* * Expect allocation after rollover to fail if we don't have at least * one more ASID than CPUs. ASID #0 is reserved for init_mm. */ - WARN_ON(NUM_USER_ASIDS - 1 <= num_possible_cpus()); + WARN_ON(num_available_asids - 1 <= num_possible_cpus()); + pr_info("ASID allocator initialised with %lu entries\n", + num_available_asids); + return 0; +} +arch_initcall(asids_update_limit); + +static int asids_init(void) +{ + asid_bits = get_cpu_asid_bits(); atomic64_set(&asid_generation, ASID_FIRST_VERSION); asid_map = kcalloc(BITS_TO_LONGS(NUM_USER_ASIDS), sizeof(*asid_map), GFP_KERNEL); @@ -282,8 +322,6 @@ static int asids_init(void) */ if (IS_ENABLED(CONFIG_UNMAP_KERNEL_AT_EL0)) set_kpti_asid_bits(); - - pr_info("ASID allocator initialised with %lu entries\n", NUM_USER_ASIDS); return 0; } early_initcall(asids_init); diff --git a/arch/arm64/mm/mmu.c b/arch/arm64/mm/mmu.c index 128f70852bf3..9b08f7c7e6f0 100644 --- a/arch/arm64/mm/mmu.c +++ b/arch/arm64/mm/mmu.c @@ -17,6 +17,7 @@ #include <linux/mman.h> #include <linux/nodemask.h> #include <linux/memblock.h> +#include <linux/memory.h> #include <linux/fs.h> #include <linux/io.h> #include <linux/mm.h> @@ -724,6 +725,312 @@ int kern_addr_valid(unsigned long addr) return pfn_valid(pte_pfn(pte)); } + +#ifdef CONFIG_MEMORY_HOTPLUG +static void free_hotplug_page_range(struct page *page, size_t size) +{ + WARN_ON(PageReserved(page)); + free_pages((unsigned long)page_address(page), get_order(size)); +} + +static void free_hotplug_pgtable_page(struct page *page) +{ + free_hotplug_page_range(page, PAGE_SIZE); +} + +static bool pgtable_range_aligned(unsigned long start, unsigned long end, + unsigned long floor, unsigned long ceiling, + unsigned long mask) +{ + start &= mask; + if (start < floor) + return false; + + if (ceiling) { + ceiling &= mask; + if (!ceiling) + return false; + } + + if (end - 1 > ceiling - 1) + return false; + return true; +} + +static void unmap_hotplug_pte_range(pmd_t *pmdp, unsigned long addr, + unsigned long end, bool free_mapped) +{ + pte_t *ptep, pte; + + do { + ptep = pte_offset_kernel(pmdp, addr); + pte = READ_ONCE(*ptep); + if (pte_none(pte)) + continue; + + WARN_ON(!pte_present(pte)); + pte_clear(&init_mm, addr, ptep); + flush_tlb_kernel_range(addr, addr + PAGE_SIZE); + if (free_mapped) + free_hotplug_page_range(pte_page(pte), PAGE_SIZE); + } while (addr += PAGE_SIZE, addr < end); +} + +static void unmap_hotplug_pmd_range(pud_t *pudp, unsigned long addr, + unsigned long end, bool free_mapped) +{ + unsigned long next; + pmd_t *pmdp, pmd; + + do { + next = pmd_addr_end(addr, end); + pmdp = pmd_offset(pudp, addr); + pmd = READ_ONCE(*pmdp); + if (pmd_none(pmd)) + continue; + + WARN_ON(!pmd_present(pmd)); + if (pmd_sect(pmd)) { + pmd_clear(pmdp); + + /* + * One TLBI should be sufficient here as the PMD_SIZE + * range is mapped with a single block entry. + */ + flush_tlb_kernel_range(addr, addr + PAGE_SIZE); + if (free_mapped) + free_hotplug_page_range(pmd_page(pmd), + PMD_SIZE); + continue; + } + WARN_ON(!pmd_table(pmd)); + unmap_hotplug_pte_range(pmdp, addr, next, free_mapped); + } while (addr = next, addr < end); +} + +static void unmap_hotplug_pud_range(p4d_t *p4dp, unsigned long addr, + unsigned long end, bool free_mapped) +{ + unsigned long next; + pud_t *pudp, pud; + + do { + next = pud_addr_end(addr, end); + pudp = pud_offset(p4dp, addr); + pud = READ_ONCE(*pudp); + if (pud_none(pud)) + continue; + + WARN_ON(!pud_present(pud)); + if (pud_sect(pud)) { + pud_clear(pudp); + + /* + * One TLBI should be sufficient here as the PUD_SIZE + * range is mapped with a single block entry. + */ + flush_tlb_kernel_range(addr, addr + PAGE_SIZE); + if (free_mapped) + free_hotplug_page_range(pud_page(pud), + PUD_SIZE); + continue; + } + WARN_ON(!pud_table(pud)); + unmap_hotplug_pmd_range(pudp, addr, next, free_mapped); + } while (addr = next, addr < end); +} + +static void unmap_hotplug_p4d_range(pgd_t *pgdp, unsigned long addr, + unsigned long end, bool free_mapped) +{ + unsigned long next; + p4d_t *p4dp, p4d; + + do { + next = p4d_addr_end(addr, end); + p4dp = p4d_offset(pgdp, addr); + p4d = READ_ONCE(*p4dp); + if (p4d_none(p4d)) + continue; + + WARN_ON(!p4d_present(p4d)); + unmap_hotplug_pud_range(p4dp, addr, next, free_mapped); + } while (addr = next, addr < end); +} + +static void unmap_hotplug_range(unsigned long addr, unsigned long end, + bool free_mapped) +{ + unsigned long next; + pgd_t *pgdp, pgd; + + do { + next = pgd_addr_end(addr, end); + pgdp = pgd_offset_k(addr); + pgd = READ_ONCE(*pgdp); + if (pgd_none(pgd)) + continue; + + WARN_ON(!pgd_present(pgd)); + unmap_hotplug_p4d_range(pgdp, addr, next, free_mapped); + } while (addr = next, addr < end); +} + +static void free_empty_pte_table(pmd_t *pmdp, unsigned long addr, + unsigned long end, unsigned long floor, + unsigned long ceiling) +{ + pte_t *ptep, pte; + unsigned long i, start = addr; + + do { + ptep = pte_offset_kernel(pmdp, addr); + pte = READ_ONCE(*ptep); + + /* + * This is just a sanity check here which verifies that + * pte clearing has been done by earlier unmap loops. + */ + WARN_ON(!pte_none(pte)); + } while (addr += PAGE_SIZE, addr < end); + + if (!pgtable_range_aligned(start, end, floor, ceiling, PMD_MASK)) + return; + + /* + * Check whether we can free the pte page if the rest of the + * entries are empty. Overlap with other regions have been + * handled by the floor/ceiling check. + */ + ptep = pte_offset_kernel(pmdp, 0UL); + for (i = 0; i < PTRS_PER_PTE; i++) { + if (!pte_none(READ_ONCE(ptep[i]))) + return; + } + + pmd_clear(pmdp); + __flush_tlb_kernel_pgtable(start); + free_hotplug_pgtable_page(virt_to_page(ptep)); +} + +static void free_empty_pmd_table(pud_t *pudp, unsigned long addr, + unsigned long end, unsigned long floor, + unsigned long ceiling) +{ + pmd_t *pmdp, pmd; + unsigned long i, next, start = addr; + + do { + next = pmd_addr_end(addr, end); + pmdp = pmd_offset(pudp, addr); + pmd = READ_ONCE(*pmdp); + if (pmd_none(pmd)) + continue; + + WARN_ON(!pmd_present(pmd) || !pmd_table(pmd) || pmd_sect(pmd)); + free_empty_pte_table(pmdp, addr, next, floor, ceiling); + } while (addr = next, addr < end); + + if (CONFIG_PGTABLE_LEVELS <= 2) + return; + + if (!pgtable_range_aligned(start, end, floor, ceiling, PUD_MASK)) + return; + + /* + * Check whether we can free the pmd page if the rest of the + * entries are empty. Overlap with other regions have been + * handled by the floor/ceiling check. + */ + pmdp = pmd_offset(pudp, 0UL); + for (i = 0; i < PTRS_PER_PMD; i++) { + if (!pmd_none(READ_ONCE(pmdp[i]))) + return; + } + + pud_clear(pudp); + __flush_tlb_kernel_pgtable(start); + free_hotplug_pgtable_page(virt_to_page(pmdp)); +} + +static void free_empty_pud_table(p4d_t *p4dp, unsigned long addr, + unsigned long end, unsigned long floor, + unsigned long ceiling) +{ + pud_t *pudp, pud; + unsigned long i, next, start = addr; + + do { + next = pud_addr_end(addr, end); + pudp = pud_offset(p4dp, addr); + pud = READ_ONCE(*pudp); + if (pud_none(pud)) + continue; + + WARN_ON(!pud_present(pud) || !pud_table(pud) || pud_sect(pud)); + free_empty_pmd_table(pudp, addr, next, floor, ceiling); + } while (addr = next, addr < end); + + if (CONFIG_PGTABLE_LEVELS <= 3) + return; + + if (!pgtable_range_aligned(start, end, floor, ceiling, PGDIR_MASK)) + return; + + /* + * Check whether we can free the pud page if the rest of the + * entries are empty. Overlap with other regions have been + * handled by the floor/ceiling check. + */ + pudp = pud_offset(p4dp, 0UL); + for (i = 0; i < PTRS_PER_PUD; i++) { + if (!pud_none(READ_ONCE(pudp[i]))) + return; + } + + p4d_clear(p4dp); + __flush_tlb_kernel_pgtable(start); + free_hotplug_pgtable_page(virt_to_page(pudp)); +} + +static void free_empty_p4d_table(pgd_t *pgdp, unsigned long addr, + unsigned long end, unsigned long floor, + unsigned long ceiling) +{ + unsigned long next; + p4d_t *p4dp, p4d; + + do { + next = p4d_addr_end(addr, end); + p4dp = p4d_offset(pgdp, addr); + p4d = READ_ONCE(*p4dp); + if (p4d_none(p4d)) + continue; + + WARN_ON(!p4d_present(p4d)); + free_empty_pud_table(p4dp, addr, next, floor, ceiling); + } while (addr = next, addr < end); +} + +static void free_empty_tables(unsigned long addr, unsigned long end, + unsigned long floor, unsigned long ceiling) +{ + unsigned long next; + pgd_t *pgdp, pgd; + + do { + next = pgd_addr_end(addr, end); + pgdp = pgd_offset_k(addr); + pgd = READ_ONCE(*pgdp); + if (pgd_none(pgd)) + continue; + + WARN_ON(!pgd_present(pgd)); + free_empty_p4d_table(pgdp, addr, next, floor, ceiling); + } while (addr = next, addr < end); +} +#endif + #ifdef CONFIG_SPARSEMEM_VMEMMAP #if !ARM64_SWAPPER_USES_SECTION_MAPS int __meminit vmemmap_populate(unsigned long start, unsigned long end, int node, @@ -771,6 +1078,12 @@ int __meminit vmemmap_populate(unsigned long start, unsigned long end, int node, void vmemmap_free(unsigned long start, unsigned long end, struct vmem_altmap *altmap) { +#ifdef CONFIG_MEMORY_HOTPLUG + WARN_ON((start < VMEMMAP_START) || (end > VMEMMAP_END)); + + unmap_hotplug_range(start, end, true); + free_empty_tables(start, end, VMEMMAP_START, VMEMMAP_END); +#endif } #endif /* CONFIG_SPARSEMEM_VMEMMAP */ @@ -1049,10 +1362,21 @@ int p4d_free_pud_page(p4d_t *p4d, unsigned long addr) } #ifdef CONFIG_MEMORY_HOTPLUG +static void __remove_pgd_mapping(pgd_t *pgdir, unsigned long start, u64 size) +{ + unsigned long end = start + size; + + WARN_ON(pgdir != init_mm.pgd); + WARN_ON((start < PAGE_OFFSET) || (end > PAGE_END)); + + unmap_hotplug_range(start, end, false); + free_empty_tables(start, end, PAGE_OFFSET, PAGE_END); +} + int arch_add_memory(int nid, u64 start, u64 size, struct mhp_restrictions *restrictions) { - int flags = 0; + int ret, flags = 0; if (rodata_full || debug_pagealloc_enabled()) flags = NO_BLOCK_MAPPINGS | NO_CONT_MAPPINGS; @@ -1062,22 +1386,59 @@ int arch_add_memory(int nid, u64 start, u64 size, memblock_clear_nomap(start, size); - return __add_pages(nid, start >> PAGE_SHIFT, size >> PAGE_SHIFT, + ret = __add_pages(nid, start >> PAGE_SHIFT, size >> PAGE_SHIFT, restrictions); + if (ret) + __remove_pgd_mapping(swapper_pg_dir, + __phys_to_virt(start), size); + return ret; } + void arch_remove_memory(int nid, u64 start, u64 size, struct vmem_altmap *altmap) { unsigned long start_pfn = start >> PAGE_SHIFT; unsigned long nr_pages = size >> PAGE_SHIFT; - /* - * FIXME: Cleanup page tables (also in arch_add_memory() in case - * adding fails). Until then, this function should only be used - * during memory hotplug (adding memory), not for memory - * unplug. ARCH_ENABLE_MEMORY_HOTREMOVE must not be - * unlocked yet. - */ __remove_pages(start_pfn, nr_pages, altmap); + __remove_pgd_mapping(swapper_pg_dir, __phys_to_virt(start), size); +} + +/* + * This memory hotplug notifier helps prevent boot memory from being + * inadvertently removed as it blocks pfn range offlining process in + * __offline_pages(). Hence this prevents both offlining as well as + * removal process for boot memory which is initially always online. + * In future if and when boot memory could be removed, this notifier + * should be dropped and free_hotplug_page_range() should handle any + * reserved pages allocated during boot. + */ +static int prevent_bootmem_remove_notifier(struct notifier_block *nb, + unsigned long action, void *data) +{ + struct mem_section *ms; + struct memory_notify *arg = data; + unsigned long end_pfn = arg->start_pfn + arg->nr_pages; + unsigned long pfn = arg->start_pfn; + + if (action != MEM_GOING_OFFLINE) + return NOTIFY_OK; + + for (; pfn < end_pfn; pfn += PAGES_PER_SECTION) { + ms = __pfn_to_section(pfn); + if (early_section(ms)) + return NOTIFY_BAD; + } + return NOTIFY_OK; +} + +static struct notifier_block prevent_bootmem_remove_nb = { + .notifier_call = prevent_bootmem_remove_notifier, +}; + +static int __init prevent_bootmem_remove_init(void) +{ + return register_memory_notifier(&prevent_bootmem_remove_nb); } +device_initcall(prevent_bootmem_remove_init); #endif diff --git a/arch/arm64/mm/proc.S b/arch/arm64/mm/proc.S index aafed6902411..197a9ba2d5ea 100644 --- a/arch/arm64/mm/proc.S +++ b/arch/arm64/mm/proc.S @@ -11,11 +11,13 @@ #include <linux/linkage.h> #include <asm/assembler.h> #include <asm/asm-offsets.h> +#include <asm/asm_pointer_auth.h> #include <asm/hwcap.h> #include <asm/pgtable.h> #include <asm/pgtable-hwdef.h> #include <asm/cpufeature.h> #include <asm/alternative.h> +#include <asm/smp.h> #ifdef CONFIG_ARM64_64K_PAGES #define TCR_TG_FLAGS TCR_TG0_64K | TCR_TG1_64K @@ -131,45 +133,19 @@ alternative_endif ubfx x11, x11, #1, #1 msr oslar_el1, x11 reset_pmuserenr_el0 x0 // Disable PMU access from EL0 + reset_amuserenr_el0 x0 // Disable AMU access from EL0 alternative_if ARM64_HAS_RAS_EXTN msr_s SYS_DISR_EL1, xzr alternative_else_nop_endif + ptrauth_keys_install_kernel x14, 0, x1, x2, x3 isb ret SYM_FUNC_END(cpu_do_resume) .popsection #endif -/* - * cpu_do_switch_mm(pgd_phys, tsk) - * - * Set the translation table base pointer to be pgd_phys. - * - * - pgd_phys - physical address of new TTB - */ -SYM_FUNC_START(cpu_do_switch_mm) - mrs x2, ttbr1_el1 - mmid x1, x1 // get mm->context.id - phys_to_ttbr x3, x0 - -alternative_if ARM64_HAS_CNP - cbz x1, 1f // skip CNP for reserved ASID - orr x3, x3, #TTBR_CNP_BIT -1: -alternative_else_nop_endif -#ifdef CONFIG_ARM64_SW_TTBR0_PAN - bfi x3, x1, #48, #16 // set the ASID field in TTBR0 -#endif - bfi x2, x1, #48, #16 // set the ASID - msr ttbr1_el1, x2 // in TTBR1 (since TCR.A1 is set) - isb - msr ttbr0_el1, x3 // now update TTBR0 - isb - b post_ttbr_update_workaround // Back to C code... -SYM_FUNC_END(cpu_do_switch_mm) - .pushsection ".idmap.text", "awx" .macro __idmap_cpu_set_reserved_ttbr1, tmp1, tmp2 @@ -408,35 +384,37 @@ SYM_FUNC_END(idmap_kpti_install_ng_mappings) /* * __cpu_setup * - * Initialise the processor for turning the MMU on. Return in x0 the - * value of the SCTLR_EL1 register. + * Initialise the processor for turning the MMU on. + * + * Input: + * x0 with a flag ARM64_CPU_BOOT_PRIMARY/ARM64_CPU_BOOT_SECONDARY/ARM64_CPU_RUNTIME. + * Output: + * Return in x0 the value of the SCTLR_EL1 register. */ .pushsection ".idmap.text", "awx" SYM_FUNC_START(__cpu_setup) tlbi vmalle1 // Invalidate local TLB dsb nsh - mov x0, #3 << 20 - msr cpacr_el1, x0 // Enable FP/ASIMD - mov x0, #1 << 12 // Reset mdscr_el1 and disable - msr mdscr_el1, x0 // access to the DCC from EL0 + mov x1, #3 << 20 + msr cpacr_el1, x1 // Enable FP/ASIMD + mov x1, #1 << 12 // Reset mdscr_el1 and disable + msr mdscr_el1, x1 // access to the DCC from EL0 isb // Unmask debug exceptions now, enable_dbg // since this is per-cpu - reset_pmuserenr_el0 x0 // Disable PMU access from EL0 + reset_pmuserenr_el0 x1 // Disable PMU access from EL0 + reset_amuserenr_el0 x1 // Disable AMU access from EL0 + /* * Memory region attributes */ mov_q x5, MAIR_EL1_SET msr mair_el1, x5 /* - * Prepare SCTLR - */ - mov_q x0, SCTLR_EL1_SET - /* * Set/prepare TCR and TTBR. We use 512GB (39-bit) address range for * both user and kernel. */ - ldr x10, =TCR_TxSZ(VA_BITS) | TCR_CACHE_FLAGS | TCR_SMP_FLAGS | \ + mov_q x10, TCR_TxSZ(VA_BITS) | TCR_CACHE_FLAGS | TCR_SMP_FLAGS | \ TCR_TG_FLAGS | TCR_KASLR_FLAGS | TCR_ASID16 | \ TCR_TBI0 | TCR_A1 | TCR_KASAN_FLAGS tcr_clear_errata_bits x10, x9, x5 @@ -468,5 +446,51 @@ SYM_FUNC_START(__cpu_setup) 1: #endif /* CONFIG_ARM64_HW_AFDBM */ msr tcr_el1, x10 + mov x1, x0 + /* + * Prepare SCTLR + */ + mov_q x0, SCTLR_EL1_SET + +#ifdef CONFIG_ARM64_PTR_AUTH + /* No ptrauth setup for run time cpus */ + cmp x1, #ARM64_CPU_RUNTIME + b.eq 3f + + /* Check if the CPU supports ptrauth */ + mrs x2, id_aa64isar1_el1 + ubfx x2, x2, #ID_AA64ISAR1_APA_SHIFT, #8 + cbz x2, 3f + + /* + * The primary cpu keys are reset here and can be + * re-initialised with some proper values later. + */ + msr_s SYS_APIAKEYLO_EL1, xzr + msr_s SYS_APIAKEYHI_EL1, xzr + + /* Just enable ptrauth for primary cpu */ + cmp x1, #ARM64_CPU_BOOT_PRIMARY + b.eq 2f + + /* if !system_supports_address_auth() then skip enable */ +alternative_if_not ARM64_HAS_ADDRESS_AUTH + b 3f +alternative_else_nop_endif + + /* Install ptrauth key for secondary cpus */ + adr_l x2, secondary_data + ldr x3, [x2, #CPU_BOOT_TASK] // get secondary_data.task + cbz x3, 2f // check for slow booting cpus + ldp x3, x4, [x2, #CPU_BOOT_PTRAUTH_KEY] + msr_s SYS_APIAKEYLO_EL1, x3 + msr_s SYS_APIAKEYHI_EL1, x4 + +2: /* Enable ptrauth instructions */ + ldr x2, =SCTLR_ELx_ENIA | SCTLR_ELx_ENIB | \ + SCTLR_ELx_ENDA | SCTLR_ELx_ENDB + orr x0, x0, x2 +3: +#endif ret // return to head.S SYM_FUNC_END(__cpu_setup) diff --git a/arch/arm64/mm/ptdump_debugfs.c b/arch/arm64/mm/ptdump_debugfs.c index 1f2eae3e988b..d29d722ec3ec 100644 --- a/arch/arm64/mm/ptdump_debugfs.c +++ b/arch/arm64/mm/ptdump_debugfs.c @@ -1,5 +1,6 @@ // SPDX-License-Identifier: GPL-2.0 #include <linux/debugfs.h> +#include <linux/memory_hotplug.h> #include <linux/seq_file.h> #include <asm/ptdump.h> @@ -7,7 +8,10 @@ static int ptdump_show(struct seq_file *m, void *v) { struct ptdump_info *info = m->private; + + get_online_mems(); ptdump_walk(m, info); + put_online_mems(); return 0; } DEFINE_SHOW_ATTRIBUTE(ptdump); diff --git a/arch/c6x/platforms/timer64.c b/arch/c6x/platforms/timer64.c index d98d94303498..661f4c7c6ef6 100644 --- a/arch/c6x/platforms/timer64.c +++ b/arch/c6x/platforms/timer64.c @@ -165,13 +165,6 @@ static irqreturn_t timer_interrupt(int irq, void *dev_id) return IRQ_HANDLED; } -static struct irqaction timer_iact = { - .name = "timer", - .flags = IRQF_TIMER, - .handler = timer_interrupt, - .dev_id = &t64_clockevent_device, -}; - void __init timer64_init(void) { struct clock_event_device *cd = &t64_clockevent_device; @@ -238,7 +231,9 @@ void __init timer64_init(void) cd->cpumask = cpumask_of(smp_processor_id()); clockevents_register_device(cd); - setup_irq(cd->irq, &timer_iact); + if (request_irq(cd->irq, timer_interrupt, IRQF_TIMER, "timer", + &t64_clockevent_device)) + pr_err("Failed to request irq %d (timer)\n", cd->irq); out: of_node_put(np); diff --git a/arch/csky/include/asm/uaccess.h b/arch/csky/include/asm/uaccess.h index eaa1c3403a42..abefa125b93c 100644 --- a/arch/csky/include/asm/uaccess.h +++ b/arch/csky/include/asm/uaccess.h @@ -11,7 +11,6 @@ #include <linux/errno.h> #include <linux/types.h> #include <linux/sched.h> -#include <linux/mm.h> #include <linux/string.h> #include <linux/version.h> #include <asm/segment.h> diff --git a/arch/hexagon/include/asm/futex.h b/arch/hexagon/include/asm/futex.h index 0191f7c7193e..6b9c554aee78 100644 --- a/arch/hexagon/include/asm/futex.h +++ b/arch/hexagon/include/asm/futex.h @@ -36,7 +36,8 @@ arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr) { int oldval = 0, ret; - pagefault_disable(); + if (!access_ok(uaddr, sizeof(u32))) + return -EFAULT; switch (op) { case FUTEX_OP_SET: @@ -62,8 +63,6 @@ arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr) ret = -ENOSYS; } - pagefault_enable(); - if (!ret) *oval = oldval; diff --git a/arch/hexagon/include/asm/uaccess.h b/arch/hexagon/include/asm/uaccess.h index 00cb38faad0c..c1019a736ff1 100644 --- a/arch/hexagon/include/asm/uaccess.h +++ b/arch/hexagon/include/asm/uaccess.h @@ -10,7 +10,6 @@ /* * User space memory access functions */ -#include <linux/mm.h> #include <asm/sections.h> /* diff --git a/arch/hexagon/kernel/smp.c b/arch/hexagon/kernel/smp.c index 0bbbe652a513..619c56420aa0 100644 --- a/arch/hexagon/kernel/smp.c +++ b/arch/hexagon/kernel/smp.c @@ -114,12 +114,6 @@ void send_ipi(const struct cpumask *cpumask, enum ipi_message_type msg) local_irq_restore(flags); } -static struct irqaction ipi_intdesc = { - .handler = handle_ipi, - .flags = IRQF_TRIGGER_RISING, - .name = "ipi_handler" -}; - void __init smp_prepare_boot_cpu(void) { } @@ -132,8 +126,8 @@ void __init smp_prepare_boot_cpu(void) void start_secondary(void) { - unsigned int cpu; unsigned long thread_ptr; + unsigned int cpu, irq; /* Calculate thread_info pointer from stack pointer */ __asm__ __volatile__( @@ -155,7 +149,10 @@ void start_secondary(void) cpu = smp_processor_id(); - setup_irq(BASE_IPI_IRQ + cpu, &ipi_intdesc); + irq = BASE_IPI_IRQ + cpu; + if (request_irq(irq, handle_ipi, IRQF_TRIGGER_RISING, "ipi_handler", + NULL)) + pr_err("Failed to request irq %u (ipi_handler)\n", irq); /* Register the clock_event dummy */ setup_percpu_clockdev(); @@ -201,7 +198,7 @@ void __init smp_cpus_done(unsigned int max_cpus) void __init smp_prepare_cpus(unsigned int max_cpus) { - int i; + int i, irq = BASE_IPI_IRQ; /* * should eventually have some sort of machine @@ -213,8 +210,11 @@ void __init smp_prepare_cpus(unsigned int max_cpus) set_cpu_present(i, true); /* Also need to register the interrupts for IPI */ - if (max_cpus > 1) - setup_irq(BASE_IPI_IRQ, &ipi_intdesc); + if (max_cpus > 1) { + if (request_irq(irq, handle_ipi, IRQF_TRIGGER_RISING, + "ipi_handler", NULL)) + pr_err("Failed to request irq %d (ipi_handler)\n", irq); + } } void smp_send_reschedule(int cpu) diff --git a/arch/hexagon/kernel/time.c b/arch/hexagon/kernel/time.c index f99e9257bed4..feffe527ac92 100644 --- a/arch/hexagon/kernel/time.c +++ b/arch/hexagon/kernel/time.c @@ -143,13 +143,6 @@ static irqreturn_t timer_interrupt(int irq, void *devid) return IRQ_HANDLED; } -/* This should also be pulled from devtree */ -static struct irqaction rtos_timer_intdesc = { - .handler = timer_interrupt, - .flags = IRQF_TIMER | IRQF_TRIGGER_RISING, - .name = "rtos_timer" -}; - /* * time_init_deferred - called by start_kernel to set up timer/clock source * @@ -163,6 +156,7 @@ void __init time_init_deferred(void) { struct resource *resource = NULL; struct clock_event_device *ce_dev = &hexagon_clockevent_dev; + unsigned long flag = IRQF_TIMER | IRQF_TRIGGER_RISING; ce_dev->cpumask = cpu_all_mask; @@ -195,7 +189,8 @@ void __init time_init_deferred(void) #endif clockevents_register_device(ce_dev); - setup_irq(ce_dev->irq, &rtos_timer_intdesc); + if (request_irq(ce_dev->irq, timer_interrupt, flag, "rtos_timer", NULL)) + pr_err("Failed to register rtos_timer interrupt\n"); } void __init time_init(void) diff --git a/arch/ia64/include/asm/futex.h b/arch/ia64/include/asm/futex.h index 2e106d462196..1db26b432d8c 100644 --- a/arch/ia64/include/asm/futex.h +++ b/arch/ia64/include/asm/futex.h @@ -50,7 +50,8 @@ arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr) { int oldval = 0, ret; - pagefault_disable(); + if (!access_ok(uaddr, sizeof(u32))) + return -EFAULT; switch (op) { case FUTEX_OP_SET: @@ -74,8 +75,6 @@ arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr) ret = -ENOSYS; } - pagefault_enable(); - if (!ret) *oval = oldval; diff --git a/arch/ia64/include/asm/hw_irq.h b/arch/ia64/include/asm/hw_irq.h index e6385c7bdeb0..f6ff95b4ecb1 100644 --- a/arch/ia64/include/asm/hw_irq.h +++ b/arch/ia64/include/asm/hw_irq.h @@ -113,7 +113,6 @@ extern struct irq_chip irq_type_ia64_lsapic; /* CPU-internal interrupt controlle #define ia64_register_ipi ia64_native_register_ipi #define assign_irq_vector ia64_native_assign_irq_vector #define free_irq_vector ia64_native_free_irq_vector -#define register_percpu_irq ia64_native_register_percpu_irq #define ia64_resend_irq ia64_native_resend_irq extern void ia64_native_register_ipi(void); @@ -123,7 +122,6 @@ extern void ia64_native_free_irq_vector (int vector); extern int reserve_irq_vector (int vector); extern void __setup_vector_irq(int cpu); extern void ia64_send_ipi (int cpu, int vector, int delivery_mode, int redirect); -extern void ia64_native_register_percpu_irq (ia64_vector vec, struct irqaction *action); extern void destroy_and_reserve_irq (unsigned int irq); #ifdef CONFIG_SMP diff --git a/arch/ia64/include/asm/uaccess.h b/arch/ia64/include/asm/uaccess.h index 89782ad3fb88..5c7e79eccaee 100644 --- a/arch/ia64/include/asm/uaccess.h +++ b/arch/ia64/include/asm/uaccess.h @@ -35,7 +35,6 @@ #include <linux/compiler.h> #include <linux/page-flags.h> -#include <linux/mm.h> #include <asm/intrinsics.h> #include <asm/pgtable.h> diff --git a/arch/ia64/kernel/efi.c b/arch/ia64/kernel/efi.c index 0a34dcc435c6..f69f3fe0532e 100644 --- a/arch/ia64/kernel/efi.c +++ b/arch/ia64/kernel/efi.c @@ -45,11 +45,21 @@ #define EFI_DEBUG 0 +#define ESI_TABLE_GUID \ + EFI_GUID(0x43EA58DC, 0xCF28, 0x4b06, 0xB3, \ + 0x91, 0xB7, 0x50, 0x59, 0x34, 0x2B, 0xD4) + +static unsigned long mps_phys = EFI_INVALID_TABLE_ADDR; static __initdata unsigned long palo_phys; +unsigned long __initdata esi_phys = EFI_INVALID_TABLE_ADDR; +unsigned long hcdp_phys = EFI_INVALID_TABLE_ADDR; unsigned long sal_systab_phys = EFI_INVALID_TABLE_ADDR; -static __initdata efi_config_table_type_t arch_tables[] = { +static const efi_config_table_type_t arch_tables[] __initconst = { + {ESI_TABLE_GUID, "ESI", &esi_phys}, + {HCDP_TABLE_GUID, "HCDP", &hcdp_phys}, + {MPS_TABLE_GUID, "MPS", &mps_phys}, {PROCESSOR_ABSTRACTION_LAYER_OVERWRITE_GUID, "PALO", &palo_phys}, {SAL_SYSTEM_TABLE_GUID, "SALsystab", &sal_systab_phys}, {NULL_GUID, NULL, 0}, @@ -474,11 +484,10 @@ efi_map_pal_code (void) void __init efi_init (void) { + const efi_system_table_t *efi_systab; void *efi_map_start, *efi_map_end; - efi_char16_t *c16; u64 efi_desc_size; - char *cp, vendor[100] = "unknown"; - int i; + char *cp; set_bit(EFI_BOOT, &efi.flags); set_bit(EFI_64BIT, &efi.flags); @@ -508,42 +517,29 @@ efi_init (void) printk(KERN_INFO "Ignoring memory above %lluMB\n", max_addr >> 20); - efi.systab = __va(ia64_boot_param->efi_systab); + efi_systab = __va(ia64_boot_param->efi_systab); /* * Verify the EFI Table */ - if (efi.systab == NULL) + if (efi_systab == NULL) panic("Whoa! Can't find EFI system table.\n"); - if (efi.systab->hdr.signature != EFI_SYSTEM_TABLE_SIGNATURE) + if (efi_systab_check_header(&efi_systab->hdr, 1)) panic("Whoa! EFI system table signature incorrect\n"); - if ((efi.systab->hdr.revision >> 16) == 0) - printk(KERN_WARNING "Warning: EFI system table version " - "%d.%02d, expected 1.00 or greater\n", - efi.systab->hdr.revision >> 16, - efi.systab->hdr.revision & 0xffff); - - /* Show what we know for posterity */ - c16 = __va(efi.systab->fw_vendor); - if (c16) { - for (i = 0;i < (int) sizeof(vendor) - 1 && *c16; ++i) - vendor[i] = *c16++; - vendor[i] = '\0'; - } - printk(KERN_INFO "EFI v%u.%.02u by %s:", - efi.systab->hdr.revision >> 16, - efi.systab->hdr.revision & 0xffff, vendor); + efi_systab_report_header(&efi_systab->hdr, efi_systab->fw_vendor); palo_phys = EFI_INVALID_TABLE_ADDR; - if (efi_config_init(arch_tables) != 0) + if (efi_config_parse_tables(__va(efi_systab->tables), + efi_systab->nr_tables, + arch_tables) != 0) return; if (palo_phys != EFI_INVALID_TABLE_ADDR) handle_palo(palo_phys); - runtime = __va(efi.systab->runtime); + runtime = __va(efi_systab->runtime); efi.get_time = phys_get_time; efi.set_time = phys_set_time; efi.get_wakeup_time = phys_get_wakeup_time; @@ -1351,3 +1347,12 @@ vmcore_find_descriptor_size (unsigned long address) return ret; } #endif + +char *efi_systab_show_arch(char *str) +{ + if (mps_phys != EFI_INVALID_TABLE_ADDR) + str += sprintf(str, "MPS=0x%lx\n", mps_phys); + if (hcdp_phys != EFI_INVALID_TABLE_ADDR) + str += sprintf(str, "HCDP=0x%lx\n", hcdp_phys); + return str; +} diff --git a/arch/ia64/kernel/esi.c b/arch/ia64/kernel/esi.c index cb514126ef7f..4df57c93e0a8 100644 --- a/arch/ia64/kernel/esi.c +++ b/arch/ia64/kernel/esi.c @@ -19,10 +19,6 @@ MODULE_LICENSE("GPL"); #define MODULE_NAME "esi" -#define ESI_TABLE_GUID \ - EFI_GUID(0x43EA58DC, 0xCF28, 0x4b06, 0xB3, \ - 0x91, 0xB7, 0x50, 0x59, 0x34, 0x2B, 0xD4) - enum esi_systab_entry_type { ESI_DESC_ENTRY_POINT = 0 }; @@ -48,27 +44,18 @@ struct pdesc { static struct ia64_sal_systab *esi_systab; +extern unsigned long esi_phys; + static int __init esi_init (void) { - efi_config_table_t *config_tables; struct ia64_sal_systab *systab; - unsigned long esi = 0; char *p; int i; - config_tables = __va(efi.systab->tables); - - for (i = 0; i < (int) efi.systab->nr_tables; ++i) { - if (efi_guidcmp(config_tables[i].guid, ESI_TABLE_GUID) == 0) { - esi = config_tables[i].table; - break; - } - } - - if (!esi) + if (esi_phys == EFI_INVALID_TABLE_ADDR) return -ENODEV; - systab = __va(esi); + systab = __va(esi_phys); if (strncmp(systab->signature, "ESIT", 4) != 0) { printk(KERN_ERR "bad signature in ESI system table!"); diff --git a/arch/ia64/kernel/irq.h b/arch/ia64/kernel/irq.h new file mode 100644 index 000000000000..4d16f3cbeb1d --- /dev/null +++ b/arch/ia64/kernel/irq.h @@ -0,0 +1,3 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +extern void register_percpu_irq(ia64_vector vec, irq_handler_t handler, + unsigned long flags, const char *name); diff --git a/arch/ia64/kernel/irq_ia64.c b/arch/ia64/kernel/irq_ia64.c index 8e91c86e8072..e7862e4cb1e7 100644 --- a/arch/ia64/kernel/irq_ia64.c +++ b/arch/ia64/kernel/irq_ia64.c @@ -351,11 +351,6 @@ static irqreturn_t smp_irq_move_cleanup_interrupt(int irq, void *dev_id) return IRQ_HANDLED; } -static struct irqaction irq_move_irqaction = { - .handler = smp_irq_move_cleanup_interrupt, - .name = "irq_move" -}; - static int __init parse_vector_domain(char *arg) { if (!arg) @@ -586,28 +581,15 @@ static irqreturn_t dummy_handler (int irq, void *dev_id) return IRQ_NONE; } -static struct irqaction ipi_irqaction = { - .handler = handle_IPI, - .name = "IPI" -}; - /* * KVM uses this interrupt to force a cpu out of guest mode */ -static struct irqaction resched_irqaction = { - .handler = dummy_handler, - .name = "resched" -}; - -static struct irqaction tlb_irqaction = { - .handler = dummy_handler, - .name = "tlb_flush" -}; #endif void -ia64_native_register_percpu_irq (ia64_vector vec, struct irqaction *action) +register_percpu_irq(ia64_vector vec, irq_handler_t handler, unsigned long flags, + const char *name) { unsigned int irq; @@ -615,8 +597,9 @@ ia64_native_register_percpu_irq (ia64_vector vec, struct irqaction *action) BUG_ON(bind_irq_vector(irq, vec, CPU_MASK_ALL)); irq_set_status_flags(irq, IRQ_PER_CPU); irq_set_chip(irq, &irq_type_ia64_lsapic); - if (action) - setup_irq(irq, action); + if (handler) + if (request_irq(irq, handler, flags, name, NULL)) + pr_err("Failed to request irq %u (%s)\n", irq, name); irq_set_handler(irq, handle_percpu_irq); } @@ -624,9 +607,10 @@ void __init ia64_native_register_ipi(void) { #ifdef CONFIG_SMP - register_percpu_irq(IA64_IPI_VECTOR, &ipi_irqaction); - register_percpu_irq(IA64_IPI_RESCHEDULE, &resched_irqaction); - register_percpu_irq(IA64_IPI_LOCAL_TLB_FLUSH, &tlb_irqaction); + register_percpu_irq(IA64_IPI_VECTOR, handle_IPI, 0, "IPI"); + register_percpu_irq(IA64_IPI_RESCHEDULE, dummy_handler, 0, "resched"); + register_percpu_irq(IA64_IPI_LOCAL_TLB_FLUSH, dummy_handler, 0, + "tlb_flush"); #endif } @@ -635,10 +619,13 @@ init_IRQ (void) { acpi_boot_init(); ia64_register_ipi(); - register_percpu_irq(IA64_SPURIOUS_INT_VECTOR, NULL); + register_percpu_irq(IA64_SPURIOUS_INT_VECTOR, NULL, 0, NULL); #ifdef CONFIG_SMP - if (vector_domain_type != VECTOR_DOMAIN_NONE) - register_percpu_irq(IA64_IRQ_MOVE_VECTOR, &irq_move_irqaction); + if (vector_domain_type != VECTOR_DOMAIN_NONE) { + register_percpu_irq(IA64_IRQ_MOVE_VECTOR, + smp_irq_move_cleanup_interrupt, 0, + "irq_move"); + } #endif #ifdef CONFIG_PERFMON pfm_init_percpu(); diff --git a/arch/ia64/kernel/mca.c b/arch/ia64/kernel/mca.c index bf2cb9294795..6fb54dfa1350 100644 --- a/arch/ia64/kernel/mca.c +++ b/arch/ia64/kernel/mca.c @@ -104,6 +104,7 @@ #include "mca_drv.h" #include "entry.h" +#include "irq.h" #if defined(IA64_MCA_DEBUG_INFO) # define IA64_MCA_DEBUG(fmt...) printk(fmt) @@ -1766,36 +1767,6 @@ ia64_mca_disable_cpe_polling(char *str) __setup("disable_cpe_poll", ia64_mca_disable_cpe_polling); -static struct irqaction cmci_irqaction = { - .handler = ia64_mca_cmc_int_handler, - .name = "cmc_hndlr" -}; - -static struct irqaction cmcp_irqaction = { - .handler = ia64_mca_cmc_int_caller, - .name = "cmc_poll" -}; - -static struct irqaction mca_rdzv_irqaction = { - .handler = ia64_mca_rendez_int_handler, - .name = "mca_rdzv" -}; - -static struct irqaction mca_wkup_irqaction = { - .handler = ia64_mca_wakeup_int_handler, - .name = "mca_wkup" -}; - -static struct irqaction mca_cpe_irqaction = { - .handler = ia64_mca_cpe_int_handler, - .name = "cpe_hndlr" -}; - -static struct irqaction mca_cpep_irqaction = { - .handler = ia64_mca_cpe_int_caller, - .name = "cpe_poll" -}; - /* Minimal format of the MCA/INIT stacks. The pseudo processes that run on * these stacks can never sleep, they cannot return from the kernel to user * space, they do not appear in a normal ps listing. So there is no need to @@ -2056,18 +2027,23 @@ void __init ia64_mca_irq_init(void) * Configure the CMCI/P vector and handler. Interrupts for CMC are * per-processor, so AP CMC interrupts are setup in smp_callin() (smpboot.c). */ - register_percpu_irq(IA64_CMC_VECTOR, &cmci_irqaction); - register_percpu_irq(IA64_CMCP_VECTOR, &cmcp_irqaction); + register_percpu_irq(IA64_CMC_VECTOR, ia64_mca_cmc_int_handler, 0, + "cmc_hndlr"); + register_percpu_irq(IA64_CMCP_VECTOR, ia64_mca_cmc_int_caller, 0, + "cmc_poll"); ia64_mca_cmc_vector_setup(); /* Setup vector on BSP */ /* Setup the MCA rendezvous interrupt vector */ - register_percpu_irq(IA64_MCA_RENDEZ_VECTOR, &mca_rdzv_irqaction); + register_percpu_irq(IA64_MCA_RENDEZ_VECTOR, ia64_mca_rendez_int_handler, + 0, "mca_rdzv"); /* Setup the MCA wakeup interrupt vector */ - register_percpu_irq(IA64_MCA_WAKEUP_VECTOR, &mca_wkup_irqaction); + register_percpu_irq(IA64_MCA_WAKEUP_VECTOR, ia64_mca_wakeup_int_handler, + 0, "mca_wkup"); /* Setup the CPEI/P handler */ - register_percpu_irq(IA64_CPEP_VECTOR, &mca_cpep_irqaction); + register_percpu_irq(IA64_CPEP_VECTOR, ia64_mca_cpe_int_caller, 0, + "cpe_poll"); } /* @@ -2108,7 +2084,9 @@ ia64_mca_late_init(void) if (irq > 0) { cpe_poll_enabled = 0; irq_set_status_flags(irq, IRQ_PER_CPU); - setup_irq(irq, &mca_cpe_irqaction); + if (request_irq(irq, ia64_mca_cpe_int_handler, + 0, "cpe_hndlr", NULL)) + pr_err("Failed to register cpe_hndlr interrupt\n"); ia64_cpe_irq = irq; ia64_mca_register_cpev(cpe_vector); IA64_MCA_DEBUG("%s: CPEI/P setup and enabled.\n", diff --git a/arch/ia64/kernel/perfmon.c b/arch/ia64/kernel/perfmon.c index a23c3938a1c4..df257002950e 100644 --- a/arch/ia64/kernel/perfmon.c +++ b/arch/ia64/kernel/perfmon.c @@ -57,6 +57,8 @@ #include <linux/uaccess.h> #include <asm/delay.h> +#include "irq.h" + #ifdef CONFIG_PERFMON /* * perfmon context state @@ -6313,11 +6315,6 @@ pfm_flush_pmds(struct task_struct *task, pfm_context_t *ctx) } } -static struct irqaction perfmon_irqaction = { - .handler = pfm_interrupt_handler, - .name = "perfmon" -}; - static void pfm_alt_save_pmu_state(void *data) { @@ -6591,7 +6588,8 @@ pfm_init_percpu (void) pfm_unfreeze_pmu(); if (first_time) { - register_percpu_irq(IA64_PERFMON_VECTOR, &perfmon_irqaction); + register_percpu_irq(IA64_PERFMON_VECTOR, pfm_interrupt_handler, + 0, "perfmon"); first_time=0; } diff --git a/arch/ia64/kernel/process.c b/arch/ia64/kernel/process.c index 968b5f33e725..10cb9382ab76 100644 --- a/arch/ia64/kernel/process.c +++ b/arch/ia64/kernel/process.c @@ -646,14 +646,8 @@ cpu_halt (void) void machine_shutdown(void) { -#ifdef CONFIG_HOTPLUG_CPU - int cpu; + smp_shutdown_nonboot_cpus(reboot_cpu); - for_each_online_cpu(cpu) { - if (cpu != smp_processor_id()) - cpu_down(cpu); - } -#endif #ifdef CONFIG_KEXEC kexec_disable_iosapic(); #endif @@ -681,3 +675,4 @@ machine_power_off (void) machine_halt(); } +EXPORT_SYMBOL(ia64_delay_loop); diff --git a/arch/ia64/kernel/time.c b/arch/ia64/kernel/time.c index 91b4024c9351..7abc5f37bfaf 100644 --- a/arch/ia64/kernel/time.c +++ b/arch/ia64/kernel/time.c @@ -32,6 +32,7 @@ #include <asm/sections.h> #include "fsyscall_gtod_data.h" +#include "irq.h" static u64 itc_get_cycles(struct clocksource *cs); @@ -380,13 +381,6 @@ static u64 itc_get_cycles(struct clocksource *cs) return now; } - -static struct irqaction timer_irqaction = { - .handler = timer_interrupt, - .flags = IRQF_IRQPOLL, - .name = "timer" -}; - void read_persistent_clock64(struct timespec64 *ts) { efi_gettimeofday(ts); @@ -395,7 +389,8 @@ void read_persistent_clock64(struct timespec64 *ts) void __init time_init (void) { - register_percpu_irq(IA64_TIMER_VECTOR, &timer_irqaction); + register_percpu_irq(IA64_TIMER_VECTOR, timer_interrupt, IRQF_IRQPOLL, + "timer"); ia64_init_itm(); } diff --git a/arch/ia64/mm/ioremap.c b/arch/ia64/mm/ioremap.c index a09cfa064536..55fd3eb753ff 100644 --- a/arch/ia64/mm/ioremap.c +++ b/arch/ia64/mm/ioremap.c @@ -8,6 +8,7 @@ #include <linux/module.h> #include <linux/efi.h> #include <linux/io.h> +#include <linux/mm.h> #include <linux/vmalloc.h> #include <asm/io.h> #include <asm/meminit.h> diff --git a/arch/m68k/Kconfig.bus b/arch/m68k/Kconfig.bus index 9d0a3a23d50e..f1be832e2b74 100644 --- a/arch/m68k/Kconfig.bus +++ b/arch/m68k/Kconfig.bus @@ -66,6 +66,6 @@ endif if !MMU config ISA_DMA_API - def_bool !M5272 + def_bool !M5272 endif diff --git a/arch/m68k/Kconfig.debug b/arch/m68k/Kconfig.debug index f43643111eaf..11b306bdd788 100644 --- a/arch/m68k/Kconfig.debug +++ b/arch/m68k/Kconfig.debug @@ -12,16 +12,16 @@ config EARLY_PRINTK bool "Early printk" depends on !(SUN3 || M68000 || COLDFIRE) help - Write kernel log output directly to a serial port. - Where implemented, output goes to the framebuffer as well. - PROM console functionality on Sun 3x is not affected by this option. + Write kernel log output directly to a serial port. + Where implemented, output goes to the framebuffer as well. + PROM console functionality on Sun 3x is not affected by this option. - Pass "earlyprintk" on the kernel command line to get a - boot console. + Pass "earlyprintk" on the kernel command line to get a + boot console. - This is useful for kernel debugging when your machine crashes very - early, i.e. before the normal console driver is loaded. - You should normally say N here, unless you want to debug such a crash. + This is useful for kernel debugging when your machine crashes very + early, i.e. before the normal console driver is loaded. + You should normally say N here, unless you want to debug such a crash. if !MMU diff --git a/arch/m68k/Kconfig.machine b/arch/m68k/Kconfig.machine index c01e103492fd..b23a66bac77f 100644 --- a/arch/m68k/Kconfig.machine +++ b/arch/m68k/Kconfig.machine @@ -269,10 +269,10 @@ config AMCORE Support for the Sysam AMCORE open-hardware generic board. config STMARK2 - bool "Sysam stmark2 board support" - depends on M5441x - help - Support for the Sysam stmark2 open-hardware generic board. + bool "Sysam stmark2 board support" + depends on M5441x + help + Support for the Sysam stmark2 open-hardware generic board. config FIREBEE bool "FireBee board support" diff --git a/arch/m68k/configs/amiga_defconfig b/arch/m68k/configs/amiga_defconfig index e1134c3e0b69..9818d0ed143e 100644 --- a/arch/m68k/configs/amiga_defconfig +++ b/arch/m68k/configs/amiga_defconfig @@ -173,7 +173,6 @@ CONFIG_NETFILTER_XT_MATCH_NFACCT=m CONFIG_NETFILTER_XT_MATCH_OSF=m CONFIG_NETFILTER_XT_MATCH_OWNER=m CONFIG_NETFILTER_XT_MATCH_POLICY=m -CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m CONFIG_NETFILTER_XT_MATCH_QUOTA=m CONFIG_NETFILTER_XT_MATCH_RATEEST=m @@ -369,6 +368,7 @@ CONFIG_TCM_FILEIO=m CONFIG_TCM_PSCSI=m CONFIG_NETDEVICES=y CONFIG_DUMMY=m +CONFIG_WIREGUARD=m CONFIG_EQUALIZER=m CONFIG_NET_TEAM=m CONFIG_NET_TEAM_MODE_BROADCAST=m @@ -613,9 +613,6 @@ CONFIG_CRYPTO_USER_API_HASH=m CONFIG_CRYPTO_USER_API_SKCIPHER=m CONFIG_CRYPTO_USER_API_RNG=m CONFIG_CRYPTO_USER_API_AEAD=m -CONFIG_CRYPTO_LIB_BLAKE2S=m -CONFIG_CRYPTO_LIB_CURVE25519=m -CONFIG_CRYPTO_LIB_CHACHA20POLY1305=m # CONFIG_CRYPTO_HW is not set CONFIG_CRC32_SELFTEST=m CONFIG_CRC64=m diff --git a/arch/m68k/configs/apollo_defconfig b/arch/m68k/configs/apollo_defconfig index 484cb1643df1..db2402c75300 100644 --- a/arch/m68k/configs/apollo_defconfig +++ b/arch/m68k/configs/apollo_defconfig @@ -169,7 +169,6 @@ CONFIG_NETFILTER_XT_MATCH_NFACCT=m CONFIG_NETFILTER_XT_MATCH_OSF=m CONFIG_NETFILTER_XT_MATCH_OWNER=m CONFIG_NETFILTER_XT_MATCH_POLICY=m -CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m CONFIG_NETFILTER_XT_MATCH_QUOTA=m CONFIG_NETFILTER_XT_MATCH_RATEEST=m @@ -348,6 +347,7 @@ CONFIG_TCM_FILEIO=m CONFIG_TCM_PSCSI=m CONFIG_NETDEVICES=y CONFIG_DUMMY=m +CONFIG_WIREGUARD=m CONFIG_EQUALIZER=m CONFIG_NET_TEAM=m CONFIG_NET_TEAM_MODE_BROADCAST=m @@ -569,9 +569,6 @@ CONFIG_CRYPTO_USER_API_HASH=m CONFIG_CRYPTO_USER_API_SKCIPHER=m CONFIG_CRYPTO_USER_API_RNG=m CONFIG_CRYPTO_USER_API_AEAD=m -CONFIG_CRYPTO_LIB_BLAKE2S=m -CONFIG_CRYPTO_LIB_CURVE25519=m -CONFIG_CRYPTO_LIB_CHACHA20POLY1305=m # CONFIG_CRYPTO_HW is not set CONFIG_CRC32_SELFTEST=m CONFIG_CRC64=m diff --git a/arch/m68k/configs/atari_defconfig b/arch/m68k/configs/atari_defconfig index eb6a46b6d135..07a28b48eb43 100644 --- a/arch/m68k/configs/atari_defconfig +++ b/arch/m68k/configs/atari_defconfig @@ -176,7 +176,6 @@ CONFIG_NETFILTER_XT_MATCH_NFACCT=m CONFIG_NETFILTER_XT_MATCH_OSF=m CONFIG_NETFILTER_XT_MATCH_OWNER=m CONFIG_NETFILTER_XT_MATCH_POLICY=m -CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m CONFIG_NETFILTER_XT_MATCH_QUOTA=m CONFIG_NETFILTER_XT_MATCH_RATEEST=m @@ -364,6 +363,7 @@ CONFIG_TCM_FILEIO=m CONFIG_TCM_PSCSI=m CONFIG_NETDEVICES=y CONFIG_DUMMY=m +CONFIG_WIREGUARD=m CONFIG_EQUALIZER=m CONFIG_NET_TEAM=m CONFIG_NET_TEAM_MODE_BROADCAST=m @@ -591,9 +591,6 @@ CONFIG_CRYPTO_USER_API_HASH=m CONFIG_CRYPTO_USER_API_SKCIPHER=m CONFIG_CRYPTO_USER_API_RNG=m CONFIG_CRYPTO_USER_API_AEAD=m -CONFIG_CRYPTO_LIB_BLAKE2S=m -CONFIG_CRYPTO_LIB_CURVE25519=m -CONFIG_CRYPTO_LIB_CHACHA20POLY1305=m # CONFIG_CRYPTO_HW is not set CONFIG_CRC32_SELFTEST=m CONFIG_CRC64=m diff --git a/arch/m68k/configs/bvme6000_defconfig b/arch/m68k/configs/bvme6000_defconfig index bee9263a409c..033589367cb1 100644 --- a/arch/m68k/configs/bvme6000_defconfig +++ b/arch/m68k/configs/bvme6000_defconfig @@ -166,7 +166,6 @@ CONFIG_NETFILTER_XT_MATCH_NFACCT=m CONFIG_NETFILTER_XT_MATCH_OSF=m CONFIG_NETFILTER_XT_MATCH_OWNER=m CONFIG_NETFILTER_XT_MATCH_POLICY=m -CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m CONFIG_NETFILTER_XT_MATCH_QUOTA=m CONFIG_NETFILTER_XT_MATCH_RATEEST=m @@ -346,6 +345,7 @@ CONFIG_TCM_FILEIO=m CONFIG_TCM_PSCSI=m CONFIG_NETDEVICES=y CONFIG_DUMMY=m +CONFIG_WIREGUARD=m CONFIG_EQUALIZER=m CONFIG_NET_TEAM=m CONFIG_NET_TEAM_MODE_BROADCAST=m @@ -562,9 +562,6 @@ CONFIG_CRYPTO_USER_API_HASH=m CONFIG_CRYPTO_USER_API_SKCIPHER=m CONFIG_CRYPTO_USER_API_RNG=m CONFIG_CRYPTO_USER_API_AEAD=m -CONFIG_CRYPTO_LIB_BLAKE2S=m -CONFIG_CRYPTO_LIB_CURVE25519=m -CONFIG_CRYPTO_LIB_CHACHA20POLY1305=m # CONFIG_CRYPTO_HW is not set CONFIG_CRC32_SELFTEST=m CONFIG_CRC64=m diff --git a/arch/m68k/configs/hp300_defconfig b/arch/m68k/configs/hp300_defconfig index c8847a8bcbd6..ee4d02a90214 100644 --- a/arch/m68k/configs/hp300_defconfig +++ b/arch/m68k/configs/hp300_defconfig @@ -168,7 +168,6 @@ CONFIG_NETFILTER_XT_MATCH_NFACCT=m CONFIG_NETFILTER_XT_MATCH_OSF=m CONFIG_NETFILTER_XT_MATCH_OWNER=m CONFIG_NETFILTER_XT_MATCH_POLICY=m -CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m CONFIG_NETFILTER_XT_MATCH_QUOTA=m CONFIG_NETFILTER_XT_MATCH_RATEEST=m @@ -347,6 +346,7 @@ CONFIG_TCM_FILEIO=m CONFIG_TCM_PSCSI=m CONFIG_NETDEVICES=y CONFIG_DUMMY=m +CONFIG_WIREGUARD=m CONFIG_EQUALIZER=m CONFIG_NET_TEAM=m CONFIG_NET_TEAM_MODE_BROADCAST=m @@ -571,9 +571,6 @@ CONFIG_CRYPTO_USER_API_HASH=m CONFIG_CRYPTO_USER_API_SKCIPHER=m CONFIG_CRYPTO_USER_API_RNG=m CONFIG_CRYPTO_USER_API_AEAD=m -CONFIG_CRYPTO_LIB_BLAKE2S=m -CONFIG_CRYPTO_LIB_CURVE25519=m -CONFIG_CRYPTO_LIB_CHACHA20POLY1305=m # CONFIG_CRYPTO_HW is not set CONFIG_CRC32_SELFTEST=m CONFIG_CRC64=m diff --git a/arch/m68k/configs/mac_defconfig b/arch/m68k/configs/mac_defconfig index 303ffafd9cad..442eed608ebc 100644 --- a/arch/m68k/configs/mac_defconfig +++ b/arch/m68k/configs/mac_defconfig @@ -167,7 +167,6 @@ CONFIG_NETFILTER_XT_MATCH_NFACCT=m CONFIG_NETFILTER_XT_MATCH_OSF=m CONFIG_NETFILTER_XT_MATCH_OWNER=m CONFIG_NETFILTER_XT_MATCH_POLICY=m -CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m CONFIG_NETFILTER_XT_MATCH_QUOTA=m CONFIG_NETFILTER_XT_MATCH_RATEEST=m @@ -363,6 +362,7 @@ CONFIG_INPUT_ADBHID=y CONFIG_MAC_EMUMOUSEBTN=y CONFIG_NETDEVICES=y CONFIG_DUMMY=m +CONFIG_WIREGUARD=m CONFIG_EQUALIZER=m CONFIG_NET_TEAM=m CONFIG_NET_TEAM_MODE_BROADCAST=m @@ -593,9 +593,6 @@ CONFIG_CRYPTO_USER_API_HASH=m CONFIG_CRYPTO_USER_API_SKCIPHER=m CONFIG_CRYPTO_USER_API_RNG=m CONFIG_CRYPTO_USER_API_AEAD=m -CONFIG_CRYPTO_LIB_BLAKE2S=m -CONFIG_CRYPTO_LIB_CURVE25519=m -CONFIG_CRYPTO_LIB_CHACHA20POLY1305=m # CONFIG_CRYPTO_HW is not set CONFIG_CRC32_SELFTEST=m CONFIG_CRC64=m diff --git a/arch/m68k/configs/multi_defconfig b/arch/m68k/configs/multi_defconfig index 89a704226cd9..1de7da7c1041 100644 --- a/arch/m68k/configs/multi_defconfig +++ b/arch/m68k/configs/multi_defconfig @@ -187,7 +187,6 @@ CONFIG_NETFILTER_XT_MATCH_NFACCT=m CONFIG_NETFILTER_XT_MATCH_OSF=m CONFIG_NETFILTER_XT_MATCH_OWNER=m CONFIG_NETFILTER_XT_MATCH_POLICY=m -CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m CONFIG_NETFILTER_XT_MATCH_QUOTA=m CONFIG_NETFILTER_XT_MATCH_RATEEST=m @@ -407,6 +406,7 @@ CONFIG_INPUT_ADBHID=y CONFIG_MAC_EMUMOUSEBTN=y CONFIG_NETDEVICES=y CONFIG_DUMMY=m +CONFIG_WIREGUARD=m CONFIG_EQUALIZER=m CONFIG_NET_TEAM=m CONFIG_NET_TEAM_MODE_BROADCAST=m @@ -679,9 +679,6 @@ CONFIG_CRYPTO_USER_API_HASH=m CONFIG_CRYPTO_USER_API_SKCIPHER=m CONFIG_CRYPTO_USER_API_RNG=m CONFIG_CRYPTO_USER_API_AEAD=m -CONFIG_CRYPTO_LIB_BLAKE2S=m -CONFIG_CRYPTO_LIB_CURVE25519=m -CONFIG_CRYPTO_LIB_CHACHA20POLY1305=m # CONFIG_CRYPTO_HW is not set CONFIG_CRC32_SELFTEST=m CONFIG_CRC64=m diff --git a/arch/m68k/configs/mvme147_defconfig b/arch/m68k/configs/mvme147_defconfig index f62c1f4d03a0..ced341e047db 100644 --- a/arch/m68k/configs/mvme147_defconfig +++ b/arch/m68k/configs/mvme147_defconfig @@ -165,7 +165,6 @@ CONFIG_NETFILTER_XT_MATCH_NFACCT=m CONFIG_NETFILTER_XT_MATCH_OSF=m CONFIG_NETFILTER_XT_MATCH_OWNER=m CONFIG_NETFILTER_XT_MATCH_POLICY=m -CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m CONFIG_NETFILTER_XT_MATCH_QUOTA=m CONFIG_NETFILTER_XT_MATCH_RATEEST=m @@ -345,6 +344,7 @@ CONFIG_TCM_FILEIO=m CONFIG_TCM_PSCSI=m CONFIG_NETDEVICES=y CONFIG_DUMMY=m +CONFIG_WIREGUARD=m CONFIG_EQUALIZER=m CONFIG_NET_TEAM=m CONFIG_NET_TEAM_MODE_BROADCAST=m @@ -561,9 +561,6 @@ CONFIG_CRYPTO_USER_API_HASH=m CONFIG_CRYPTO_USER_API_SKCIPHER=m CONFIG_CRYPTO_USER_API_RNG=m CONFIG_CRYPTO_USER_API_AEAD=m -CONFIG_CRYPTO_LIB_BLAKE2S=m -CONFIG_CRYPTO_LIB_CURVE25519=m -CONFIG_CRYPTO_LIB_CHACHA20POLY1305=m # CONFIG_CRYPTO_HW is not set CONFIG_CRC32_SELFTEST=m CONFIG_CRC64=m diff --git a/arch/m68k/configs/mvme16x_defconfig b/arch/m68k/configs/mvme16x_defconfig index 58dcad26a751..006188f1f063 100644 --- a/arch/m68k/configs/mvme16x_defconfig +++ b/arch/m68k/configs/mvme16x_defconfig @@ -166,7 +166,6 @@ CONFIG_NETFILTER_XT_MATCH_NFACCT=m CONFIG_NETFILTER_XT_MATCH_OSF=m CONFIG_NETFILTER_XT_MATCH_OWNER=m CONFIG_NETFILTER_XT_MATCH_POLICY=m -CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m CONFIG_NETFILTER_XT_MATCH_QUOTA=m CONFIG_NETFILTER_XT_MATCH_RATEEST=m @@ -346,6 +345,7 @@ CONFIG_TCM_FILEIO=m CONFIG_TCM_PSCSI=m CONFIG_NETDEVICES=y CONFIG_DUMMY=m +CONFIG_WIREGUARD=m CONFIG_EQUALIZER=m CONFIG_NET_TEAM=m CONFIG_NET_TEAM_MODE_BROADCAST=m @@ -562,9 +562,6 @@ CONFIG_CRYPTO_USER_API_HASH=m CONFIG_CRYPTO_USER_API_SKCIPHER=m CONFIG_CRYPTO_USER_API_RNG=m CONFIG_CRYPTO_USER_API_AEAD=m -CONFIG_CRYPTO_LIB_BLAKE2S=m -CONFIG_CRYPTO_LIB_CURVE25519=m -CONFIG_CRYPTO_LIB_CHACHA20POLY1305=m # CONFIG_CRYPTO_HW is not set CONFIG_CRC32_SELFTEST=m CONFIG_CRC64=m diff --git a/arch/m68k/configs/q40_defconfig b/arch/m68k/configs/q40_defconfig index 5d3c28d1d545..c65d985ee642 100644 --- a/arch/m68k/configs/q40_defconfig +++ b/arch/m68k/configs/q40_defconfig @@ -167,7 +167,6 @@ CONFIG_NETFILTER_XT_MATCH_NFACCT=m CONFIG_NETFILTER_XT_MATCH_OSF=m CONFIG_NETFILTER_XT_MATCH_OWNER=m CONFIG_NETFILTER_XT_MATCH_POLICY=m -CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m CONFIG_NETFILTER_XT_MATCH_QUOTA=m CONFIG_NETFILTER_XT_MATCH_RATEEST=m @@ -353,6 +352,7 @@ CONFIG_TCM_FILEIO=m CONFIG_TCM_PSCSI=m CONFIG_NETDEVICES=y CONFIG_DUMMY=m +CONFIG_WIREGUARD=m CONFIG_EQUALIZER=m CONFIG_NET_TEAM=m CONFIG_NET_TEAM_MODE_BROADCAST=m @@ -580,9 +580,6 @@ CONFIG_CRYPTO_USER_API_HASH=m CONFIG_CRYPTO_USER_API_SKCIPHER=m CONFIG_CRYPTO_USER_API_RNG=m CONFIG_CRYPTO_USER_API_AEAD=m -CONFIG_CRYPTO_LIB_BLAKE2S=m -CONFIG_CRYPTO_LIB_CURVE25519=m -CONFIG_CRYPTO_LIB_CHACHA20POLY1305=m # CONFIG_CRYPTO_HW is not set CONFIG_CRC32_SELFTEST=m CONFIG_CRC64=m diff --git a/arch/m68k/configs/sun3_defconfig b/arch/m68k/configs/sun3_defconfig index 5ef9e17dcd51..32905fe56cd7 100644 --- a/arch/m68k/configs/sun3_defconfig +++ b/arch/m68k/configs/sun3_defconfig @@ -163,7 +163,6 @@ CONFIG_NETFILTER_XT_MATCH_NFACCT=m CONFIG_NETFILTER_XT_MATCH_OSF=m CONFIG_NETFILTER_XT_MATCH_OWNER=m CONFIG_NETFILTER_XT_MATCH_POLICY=m -CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m CONFIG_NETFILTER_XT_MATCH_QUOTA=m CONFIG_NETFILTER_XT_MATCH_RATEEST=m @@ -343,6 +342,7 @@ CONFIG_TCM_FILEIO=m CONFIG_TCM_PSCSI=m CONFIG_NETDEVICES=y CONFIG_DUMMY=m +CONFIG_WIREGUARD=m CONFIG_EQUALIZER=m CONFIG_NET_TEAM=m CONFIG_NET_TEAM_MODE_BROADCAST=m @@ -564,9 +564,6 @@ CONFIG_CRYPTO_USER_API_HASH=m CONFIG_CRYPTO_USER_API_SKCIPHER=m CONFIG_CRYPTO_USER_API_RNG=m CONFIG_CRYPTO_USER_API_AEAD=m -CONFIG_CRYPTO_LIB_BLAKE2S=m -CONFIG_CRYPTO_LIB_CURVE25519=m -CONFIG_CRYPTO_LIB_CHACHA20POLY1305=m # CONFIG_CRYPTO_HW is not set CONFIG_CRC32_SELFTEST=m CONFIG_CRC64=m diff --git a/arch/m68k/configs/sun3x_defconfig b/arch/m68k/configs/sun3x_defconfig index 22e1accc60a3..32b0969668fe 100644 --- a/arch/m68k/configs/sun3x_defconfig +++ b/arch/m68k/configs/sun3x_defconfig @@ -163,7 +163,6 @@ CONFIG_NETFILTER_XT_MATCH_NFACCT=m CONFIG_NETFILTER_XT_MATCH_OSF=m CONFIG_NETFILTER_XT_MATCH_OWNER=m CONFIG_NETFILTER_XT_MATCH_POLICY=m -CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m CONFIG_NETFILTER_XT_MATCH_QUOTA=m CONFIG_NETFILTER_XT_MATCH_RATEEST=m @@ -343,6 +342,7 @@ CONFIG_TCM_FILEIO=m CONFIG_TCM_PSCSI=m CONFIG_NETDEVICES=y CONFIG_DUMMY=m +CONFIG_WIREGUARD=m CONFIG_EQUALIZER=m CONFIG_NET_TEAM=m CONFIG_NET_TEAM_MODE_BROADCAST=m @@ -563,9 +563,6 @@ CONFIG_CRYPTO_USER_API_HASH=m CONFIG_CRYPTO_USER_API_SKCIPHER=m CONFIG_CRYPTO_USER_API_RNG=m CONFIG_CRYPTO_USER_API_AEAD=m -CONFIG_CRYPTO_LIB_BLAKE2S=m -CONFIG_CRYPTO_LIB_CURVE25519=m -CONFIG_CRYPTO_LIB_CHACHA20POLY1305=m # CONFIG_CRYPTO_HW is not set CONFIG_CRC32_SELFTEST=m CONFIG_CRC64=m diff --git a/arch/m68k/emu/nfblock.c b/arch/m68k/emu/nfblock.c index 40712e49381b..c3a630440512 100644 --- a/arch/m68k/emu/nfblock.c +++ b/arch/m68k/emu/nfblock.c @@ -118,12 +118,11 @@ static int __init nfhd_init_one(int id, u32 blocks, u32 bsize) dev->bsize = bsize; dev->bshift = ffs(bsize) - 10; - dev->queue = blk_alloc_queue(GFP_KERNEL); + dev->queue = blk_alloc_queue(nfhd_make_request, NUMA_NO_NODE); if (dev->queue == NULL) goto free_dev; dev->queue->queuedata = dev; - blk_queue_make_request(dev->queue, nfhd_make_request); blk_queue_logical_block_size(dev->queue, bsize); dev->disk = alloc_disk(16); diff --git a/arch/m68k/include/asm/Kbuild b/arch/m68k/include/asm/Kbuild index 591d53b763b7..63f12afc4874 100644 --- a/arch/m68k/include/asm/Kbuild +++ b/arch/m68k/include/asm/Kbuild @@ -8,6 +8,7 @@ generic-y += emergency-restart.h generic-y += exec.h generic-y += extable.h generic-y += futex.h +generic-y += hardirq.h generic-y += hw_irq.h generic-y += irq_regs.h generic-y += irq_work.h diff --git a/arch/m68k/include/asm/hardirq.h b/arch/m68k/include/asm/hardirq.h deleted file mode 100644 index 11793165445d..000000000000 --- a/arch/m68k/include/asm/hardirq.h +++ /dev/null @@ -1,29 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef __M68K_HARDIRQ_H -#define __M68K_HARDIRQ_H - -#include <linux/threads.h> -#include <linux/cache.h> -#include <asm/irq.h> - -#ifdef CONFIG_MMU - -static inline void ack_bad_irq(unsigned int irq) -{ - pr_crit("unexpected IRQ trap at vector %02x\n", irq); -} - -/* entry.S is sensitive to the offsets of these fields */ -typedef struct { - unsigned int __softirq_pending; -} ____cacheline_aligned irq_cpustat_t; - -#include <linux/irq_cpustat.h> /* Standard mappings for irq_cpustat_t above */ - -#else - -#include <asm-generic/hardirq.h> - -#endif /* !CONFIG_MMU */ - -#endif diff --git a/arch/m68k/include/asm/mcf_pgalloc.h b/arch/m68k/include/asm/mcf_pgalloc.h index 82ec54c2eaa4..bc1228e00518 100644 --- a/arch/m68k/include/asm/mcf_pgalloc.h +++ b/arch/m68k/include/asm/mcf_pgalloc.h @@ -28,21 +28,22 @@ extern inline pmd_t *pmd_alloc_kernel(pgd_t *pgd, unsigned long address) return (pmd_t *) pgd; } -#define pmd_populate(mm, pmd, page) (pmd_val(*pmd) = \ - (unsigned long)(page_address(page))) +#define pmd_populate(mm, pmd, pte) (pmd_val(*pmd) = (unsigned long)(pte)) -#define pmd_populate_kernel(mm, pmd, pte) (pmd_val(*pmd) = (unsigned long)(pte)) +#define pmd_populate_kernel pmd_populate -#define pmd_pgtable(pmd) pmd_page(pmd) +#define pmd_pgtable(pmd) pfn_to_virt(pmd_val(pmd) >> PAGE_SHIFT) -static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t page, +static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t pgtable, unsigned long address) { + struct page *page = virt_to_page(pgtable); + pgtable_pte_page_dtor(page); __free_page(page); } -static inline struct page *pte_alloc_one(struct mm_struct *mm) +static inline pgtable_t pte_alloc_one(struct mm_struct *mm) { struct page *page = alloc_pages(GFP_DMA, 0); pte_t *pte; @@ -54,20 +55,16 @@ static inline struct page *pte_alloc_one(struct mm_struct *mm) return NULL; } - pte = kmap(page); - if (pte) { - clear_page(pte); - __flush_page_to_ram(pte); - flush_tlb_kernel_page(pte); - nocache_page(pte); - } - kunmap(page); + pte = page_address(page); + clear_page(pte); - return page; + return pte; } -static inline void pte_free(struct mm_struct *mm, struct page *page) +static inline void pte_free(struct mm_struct *mm, pgtable_t pgtable) { + struct page *page = virt_to_page(pgtable); + pgtable_pte_page_dtor(page); __free_page(page); } @@ -90,7 +87,7 @@ static inline pgd_t *pgd_alloc(struct mm_struct *mm) new_pgd = (pgd_t *)__get_free_page(GFP_DMA | __GFP_NOWARN); if (!new_pgd) return NULL; - memcpy(new_pgd, swapper_pg_dir, PAGE_SIZE); + memcpy(new_pgd, swapper_pg_dir, PTRS_PER_PGD * sizeof(pgd_t)); memset(new_pgd, 0, PAGE_OFFSET >> PGDIR_SHIFT); return new_pgd; } diff --git a/arch/m68k/include/asm/motorola_pgalloc.h b/arch/m68k/include/asm/motorola_pgalloc.h index ff9cc401ffd1..c66e42917912 100644 --- a/arch/m68k/include/asm/motorola_pgalloc.h +++ b/arch/m68k/include/asm/motorola_pgalloc.h @@ -5,93 +5,71 @@ #include <asm/tlb.h> #include <asm/tlbflush.h> -extern pmd_t *get_pointer_table(void); -extern int free_pointer_table(pmd_t *); +extern void mmu_page_ctor(void *page); +extern void mmu_page_dtor(void *page); -static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm) -{ - pte_t *pte; +enum m68k_table_types { + TABLE_PGD = 0, + TABLE_PMD = 0, /* same size as PGD */ + TABLE_PTE = 1, +}; - pte = (pte_t *)__get_free_page(GFP_KERNEL|__GFP_ZERO); - if (pte) { - __flush_page_to_ram(pte); - flush_tlb_kernel_page(pte); - nocache_page(pte); - } +extern void init_pointer_table(void *table, int type); +extern void *get_pointer_table(int type); +extern int free_pointer_table(void *table, int type); - return pte; +static inline pte_t *pte_alloc_one_kernel(struct mm_struct *mm) +{ + return get_pointer_table(TABLE_PTE); } static inline void pte_free_kernel(struct mm_struct *mm, pte_t *pte) { - cache_page(pte); - free_page((unsigned long) pte); + free_pointer_table(pte, TABLE_PTE); } static inline pgtable_t pte_alloc_one(struct mm_struct *mm) { - struct page *page; - pte_t *pte; - - page = alloc_pages(GFP_KERNEL|__GFP_ZERO, 0); - if(!page) - return NULL; - if (!pgtable_pte_page_ctor(page)) { - __free_page(page); - return NULL; - } - - pte = kmap(page); - __flush_page_to_ram(pte); - flush_tlb_kernel_page(pte); - nocache_page(pte); - kunmap(page); - return page; + return get_pointer_table(TABLE_PTE); } -static inline void pte_free(struct mm_struct *mm, pgtable_t page) +static inline void pte_free(struct mm_struct *mm, pgtable_t pgtable) { - pgtable_pte_page_dtor(page); - cache_page(kmap(page)); - kunmap(page); - __free_page(page); + free_pointer_table(pgtable, TABLE_PTE); } -static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t page, +static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t pgtable, unsigned long address) { - pgtable_pte_page_dtor(page); - cache_page(kmap(page)); - kunmap(page); - __free_page(page); + free_pointer_table(pgtable, TABLE_PTE); } static inline pmd_t *pmd_alloc_one(struct mm_struct *mm, unsigned long address) { - return get_pointer_table(); + return get_pointer_table(TABLE_PMD); } static inline int pmd_free(struct mm_struct *mm, pmd_t *pmd) { - return free_pointer_table(pmd); + return free_pointer_table(pmd, TABLE_PMD); } static inline int __pmd_free_tlb(struct mmu_gather *tlb, pmd_t *pmd, unsigned long address) { - return free_pointer_table(pmd); + return free_pointer_table(pmd, TABLE_PMD); } static inline void pgd_free(struct mm_struct *mm, pgd_t *pgd) { - pmd_free(mm, (pmd_t *)pgd); + free_pointer_table(pgd, TABLE_PGD); } static inline pgd_t *pgd_alloc(struct mm_struct *mm) { - return (pgd_t *)get_pointer_table(); + return get_pointer_table(TABLE_PGD); } @@ -102,9 +80,9 @@ static inline void pmd_populate_kernel(struct mm_struct *mm, pmd_t *pmd, pte_t * static inline void pmd_populate(struct mm_struct *mm, pmd_t *pmd, pgtable_t page) { - pmd_set(pmd, page_address(page)); + pmd_set(pmd, page); } -#define pmd_pgtable(pmd) pmd_page(pmd) +#define pmd_pgtable(pmd) ((pgtable_t)__pmd_page(pmd)) static inline void pud_populate(struct mm_struct *mm, pud_t *pud, pmd_t *pmd) { diff --git a/arch/m68k/include/asm/motorola_pgtable.h b/arch/m68k/include/asm/motorola_pgtable.h index 62bedc61f110..4b91a470ad58 100644 --- a/arch/m68k/include/asm/motorola_pgtable.h +++ b/arch/m68k/include/asm/motorola_pgtable.h @@ -23,7 +23,18 @@ #define _DESCTYPE_MASK 0x003 #define _CACHEMASK040 (~0x060) -#define _TABLE_MASK (0xfffffe00) + +/* + * Currently set to the minimum alignment of table pointers (256 bytes). + * The hardware only uses the low 4 bits for state: + * + * 3 - Used + * 2 - Write Protected + * 0,1 - Descriptor Type + * + * and has the rest of the bits reserved. + */ +#define _TABLE_MASK (0xffffff00) #define _PAGE_TABLE (_PAGE_SHORT) #define _PAGE_CHG_MASK (PAGE_MASK | _PAGE_ACCESSED | _PAGE_DIRTY | _PAGE_NOCACHE) @@ -108,13 +119,7 @@ static inline pte_t pte_modify(pte_t pte, pgprot_t newprot) static inline void pmd_set(pmd_t *pmdp, pte_t *ptep) { - unsigned long ptbl = virt_to_phys(ptep) | _PAGE_TABLE | _PAGE_ACCESSED; - unsigned long *ptr = pmdp->pmd; - short i = 16; - while (--i >= 0) { - *ptr++ = ptbl; - ptbl += (sizeof(pte_t)*PTRS_PER_PTE/16); - } + pmd_val(*pmdp) = virt_to_phys(ptep) | _PAGE_TABLE | _PAGE_ACCESSED; } static inline void pud_set(pud_t *pudp, pmd_t *pmdp) @@ -138,13 +143,14 @@ static inline void pud_set(pud_t *pudp, pmd_t *pmdp) #define pmd_none(pmd) (!pmd_val(pmd)) #define pmd_bad(pmd) ((pmd_val(pmd) & _DESCTYPE_MASK) != _PAGE_TABLE) #define pmd_present(pmd) (pmd_val(pmd) & _PAGE_TABLE) -#define pmd_clear(pmdp) ({ \ - unsigned long *__ptr = pmdp->pmd; \ - short __i = 16; \ - while (--__i >= 0) \ - *__ptr++ = 0; \ -}) -#define pmd_page(pmd) virt_to_page(__va(pmd_val(pmd))) +#define pmd_clear(pmdp) ({ pmd_val(*pmdp) = 0; }) + +/* + * m68k does not have huge pages (020/030 actually could), but generic code + * expects pmd_page() to exists, only to then DCE it all. Provide a dummy to + * make the compiler happy. + */ +#define pmd_page(pmd) NULL #define pud_none(pud) (!pud_val(pud)) diff --git a/arch/m68k/include/asm/page.h b/arch/m68k/include/asm/page.h index 05e1e1e77a9a..da546487e177 100644 --- a/arch/m68k/include/asm/page.h +++ b/arch/m68k/include/asm/page.h @@ -22,15 +22,25 @@ * These are used to make use of C type-checking.. */ #if !defined(CONFIG_MMU) || CONFIG_PGTABLE_LEVELS == 3 -typedef struct { unsigned long pmd[16]; } pmd_t; -#define pmd_val(x) ((&x)->pmd[0]) -#define __pmd(x) ((pmd_t) { { (x) }, }) +typedef struct { unsigned long pmd; } pmd_t; +#define pmd_val(x) ((&x)->pmd) +#define __pmd(x) ((pmd_t) { (x) } ) #endif typedef struct { unsigned long pte; } pte_t; typedef struct { unsigned long pgd; } pgd_t; typedef struct { unsigned long pgprot; } pgprot_t; + +#if defined(CONFIG_SUN3) +/* + * Sun3 still uses the asm-generic/pgalloc.h code and thus needs this + * definition. It would be possible to unify Sun3 and ColdFire pgalloc and have + * all of m68k use the same type. + */ typedef struct page *pgtable_t; +#else +typedef pte_t *pgtable_t; +#endif #define pte_val(x) ((x).pte) #define pgd_val(x) ((x).pgd) diff --git a/arch/m68k/include/asm/pgtable_mm.h b/arch/m68k/include/asm/pgtable_mm.h index 2bf5c3501e78..f0e5167de834 100644 --- a/arch/m68k/include/asm/pgtable_mm.h +++ b/arch/m68k/include/asm/pgtable_mm.h @@ -36,7 +36,7 @@ /* PMD_SHIFT determines the size of the area a second-level page table can map */ #if CONFIG_PGTABLE_LEVELS == 3 -#define PMD_SHIFT 22 +#define PMD_SHIFT 18 #endif #define PMD_SIZE (1UL << PMD_SHIFT) #define PMD_MASK (~(PMD_SIZE-1)) @@ -67,8 +67,8 @@ #define PTRS_PER_PMD 1 #define PTRS_PER_PGD 1024 #else -#define PTRS_PER_PTE 1024 -#define PTRS_PER_PMD 8 +#define PTRS_PER_PTE 64 +#define PTRS_PER_PMD 128 #define PTRS_PER_PGD 128 #endif #define USER_PTRS_PER_PGD (TASK_SIZE/PGDIR_SIZE) @@ -76,8 +76,8 @@ /* Virtual address region for use by kernel_map() */ #ifdef CONFIG_SUN3 -#define KMAP_START 0x0DC00000 -#define KMAP_END 0x0E000000 +#define KMAP_START 0x0dc00000 +#define KMAP_END 0x0e000000 #elif defined(CONFIG_COLDFIRE) #define KMAP_START 0xe0000000 #define KMAP_END 0xf0000000 diff --git a/arch/m68k/include/asm/uaccess_no.h b/arch/m68k/include/asm/uaccess_no.h index 6bc80c35726d..a24cfe4a0d32 100644 --- a/arch/m68k/include/asm/uaccess_no.h +++ b/arch/m68k/include/asm/uaccess_no.h @@ -5,7 +5,6 @@ /* * User space memory access functions */ -#include <linux/mm.h> #include <linux/string.h> #include <asm/segment.h> diff --git a/arch/m68k/mm/init.c b/arch/m68k/mm/init.c index 27c453f4fffe..b88d510d4fe3 100644 --- a/arch/m68k/mm/init.c +++ b/arch/m68k/mm/init.c @@ -40,11 +40,6 @@ void *empty_zero_page; EXPORT_SYMBOL(empty_zero_page); -#if !defined(CONFIG_SUN3) && !defined(CONFIG_COLDFIRE) -extern void init_pointer_table(unsigned long ptable); -extern pmd_t *zero_pgtable; -#endif - #ifdef CONFIG_MMU pg_data_t pg_data_map[MAX_NUMNODES]; @@ -125,20 +120,31 @@ void free_initmem(void) static inline void init_pointer_tables(void) { #if defined(CONFIG_MMU) && !defined(CONFIG_SUN3) && !defined(CONFIG_COLDFIRE) - int i; + int i, j; /* insert pointer tables allocated so far into the tablelist */ - init_pointer_table((unsigned long)kernel_pg_dir); + init_pointer_table(kernel_pg_dir, TABLE_PGD); for (i = 0; i < PTRS_PER_PGD; i++) { - pud_t *pud = (pud_t *)(&kernel_pg_dir[i]); + pud_t *pud = (pud_t *)&kernel_pg_dir[i]; + pmd_t *pmd_dir; - if (pud_present(*pud)) - init_pointer_table(pgd_page_vaddr(kernel_pg_dir[i])); - } + if (!pud_present(*pud)) + continue; + + pmd_dir = (pmd_t *)pgd_page_vaddr(kernel_pg_dir[i]); + init_pointer_table(pmd_dir, TABLE_PMD); - /* insert also pointer table that we used to unmap the zero page */ - if (zero_pgtable) - init_pointer_table((unsigned long)zero_pgtable); + for (j = 0; j < PTRS_PER_PMD; j++) { + pmd_t *pmd = &pmd_dir[j]; + pte_t *pte_dir; + + if (!pmd_present(*pmd)) + continue; + + pte_dir = (pte_t *)__pmd_page(*pmd); + init_pointer_table(pte_dir, TABLE_PTE); + } + } #endif } diff --git a/arch/m68k/mm/kmap.c b/arch/m68k/mm/kmap.c index 120030ad8dc4..14d31d216cef 100644 --- a/arch/m68k/mm/kmap.c +++ b/arch/m68k/mm/kmap.c @@ -24,8 +24,6 @@ #undef DEBUG -#define PTRTREESIZE (256*1024) - /* * For 040/060 we can use the virtual memory area like other architectures, * but for 020/030 we want to use early termination page descriptors and we @@ -50,7 +48,7 @@ static inline void free_io_area(void *addr) #else -#define IO_SIZE (256*1024) +#define IO_SIZE PMD_SIZE static struct vm_struct *iolist; @@ -81,14 +79,13 @@ static void __free_io_area(void *addr, unsigned long size) #if CONFIG_PGTABLE_LEVELS == 3 if (CPU_IS_020_OR_030) { - int pmd_off = (virtaddr/PTRTREESIZE) & 15; - int pmd_type = pmd_dir->pmd[pmd_off] & _DESCTYPE_MASK; + int pmd_type = pmd_val(*pmd_dir) & _DESCTYPE_MASK; if (pmd_type == _PAGE_PRESENT) { - pmd_dir->pmd[pmd_off] = 0; - virtaddr += PTRTREESIZE; - size -= PTRTREESIZE; - continue; + pmd_clear(pmd_dir); + virtaddr += PMD_SIZE; + size -= PMD_SIZE; + } else if (pmd_type == 0) continue; } @@ -249,7 +246,7 @@ void __iomem *__ioremap(unsigned long physaddr, unsigned long size, int cachefla while ((long)size > 0) { #ifdef DEBUG - if (!(virtaddr & (PTRTREESIZE-1))) + if (!(virtaddr & (PMD_SIZE-1))) printk ("\npa=%#lx va=%#lx ", physaddr, virtaddr); #endif pgd_dir = pgd_offset_k(virtaddr); @@ -263,10 +260,10 @@ void __iomem *__ioremap(unsigned long physaddr, unsigned long size, int cachefla #if CONFIG_PGTABLE_LEVELS == 3 if (CPU_IS_020_OR_030) { - pmd_dir->pmd[(virtaddr/PTRTREESIZE) & 15] = physaddr; - physaddr += PTRTREESIZE; - virtaddr += PTRTREESIZE; - size -= PTRTREESIZE; + pmd_val(*pmd_dir) = physaddr; + physaddr += PMD_SIZE; + virtaddr += PMD_SIZE; + size -= PMD_SIZE; } else #endif { @@ -367,13 +364,12 @@ void kernel_set_cachemode(void *addr, unsigned long size, int cmode) #if CONFIG_PGTABLE_LEVELS == 3 if (CPU_IS_020_OR_030) { - int pmd_off = (virtaddr/PTRTREESIZE) & 15; + unsigned long pmd = pmd_val(*pmd_dir); - if ((pmd_dir->pmd[pmd_off] & _DESCTYPE_MASK) == _PAGE_PRESENT) { - pmd_dir->pmd[pmd_off] = (pmd_dir->pmd[pmd_off] & - _CACHEMASK040) | cmode; - virtaddr += PTRTREESIZE; - size -= PTRTREESIZE; + if ((pmd & _DESCTYPE_MASK) == _PAGE_PRESENT) { + *pmd_dir = __pmd((pmd & _CACHEMASK040) | cmode); + virtaddr += PMD_SIZE; + size -= PMD_SIZE; continue; } } diff --git a/arch/m68k/mm/memory.c b/arch/m68k/mm/memory.c index 227c04fe60d2..65e0c4071912 100644 --- a/arch/m68k/mm/memory.c +++ b/arch/m68k/mm/memory.c @@ -22,109 +22,6 @@ #include <asm/machdep.h> -/* ++andreas: {get,free}_pointer_table rewritten to use unused fields from - struct page instead of separately kmalloced struct. Stolen from - arch/sparc/mm/srmmu.c ... */ - -typedef struct list_head ptable_desc; -static LIST_HEAD(ptable_list); - -#define PD_PTABLE(page) ((ptable_desc *)&(virt_to_page(page)->lru)) -#define PD_PAGE(ptable) (list_entry(ptable, struct page, lru)) -#define PD_MARKBITS(dp) (*(unsigned char *)&PD_PAGE(dp)->index) - -#define PTABLE_SIZE (PTRS_PER_PMD * sizeof(pmd_t)) - -void __init init_pointer_table(unsigned long ptable) -{ - ptable_desc *dp; - unsigned long page = ptable & PAGE_MASK; - unsigned char mask = 1 << ((ptable - page)/PTABLE_SIZE); - - dp = PD_PTABLE(page); - if (!(PD_MARKBITS(dp) & mask)) { - PD_MARKBITS(dp) = 0xff; - list_add(dp, &ptable_list); - } - - PD_MARKBITS(dp) &= ~mask; - pr_debug("init_pointer_table: %lx, %x\n", ptable, PD_MARKBITS(dp)); - - /* unreserve the page so it's possible to free that page */ - __ClearPageReserved(PD_PAGE(dp)); - init_page_count(PD_PAGE(dp)); - - return; -} - -pmd_t *get_pointer_table (void) -{ - ptable_desc *dp = ptable_list.next; - unsigned char mask = PD_MARKBITS (dp); - unsigned char tmp; - unsigned int off; - - /* - * For a pointer table for a user process address space, a - * table is taken from a page allocated for the purpose. Each - * page can hold 8 pointer tables. The page is remapped in - * virtual address space to be noncacheable. - */ - if (mask == 0) { - void *page; - ptable_desc *new; - - if (!(page = (void *)get_zeroed_page(GFP_KERNEL))) - return NULL; - - flush_tlb_kernel_page(page); - nocache_page(page); - - new = PD_PTABLE(page); - PD_MARKBITS(new) = 0xfe; - list_add_tail(new, dp); - - return (pmd_t *)page; - } - - for (tmp = 1, off = 0; (mask & tmp) == 0; tmp <<= 1, off += PTABLE_SIZE) - ; - PD_MARKBITS(dp) = mask & ~tmp; - if (!PD_MARKBITS(dp)) { - /* move to end of list */ - list_move_tail(dp, &ptable_list); - } - return (pmd_t *) (page_address(PD_PAGE(dp)) + off); -} - -int free_pointer_table (pmd_t *ptable) -{ - ptable_desc *dp; - unsigned long page = (unsigned long)ptable & PAGE_MASK; - unsigned char mask = 1 << (((unsigned long)ptable - page)/PTABLE_SIZE); - - dp = PD_PTABLE(page); - if (PD_MARKBITS (dp) & mask) - panic ("table already free!"); - - PD_MARKBITS (dp) |= mask; - - if (PD_MARKBITS(dp) == 0xff) { - /* all tables in page are free, free page */ - list_del(dp); - cache_page((void *)page); - free_page (page); - return 1; - } else if (ptable_list.next != dp) { - /* - * move this descriptor to the front of the list, since - * it has one or more free tables. - */ - list_move(dp, &ptable_list); - } - return 0; -} - /* invalidate page in both caches */ static inline void clear040(unsigned long paddr) { diff --git a/arch/m68k/mm/motorola.c b/arch/m68k/mm/motorola.c index 4857985b8080..fc16190ec2d6 100644 --- a/arch/m68k/mm/motorola.c +++ b/arch/m68k/mm/motorola.c @@ -45,34 +45,185 @@ unsigned long mm_cachebits; EXPORT_SYMBOL(mm_cachebits); #endif + +/* + * Motorola 680x0 user's manual recommends using uncached memory for address + * translation tables. + * + * Seeing how the MMU can be external on (some of) these chips, that seems like + * a very important recommendation to follow. Provide some helpers to combat + * 'variation' amongst the users of this. + */ + +void mmu_page_ctor(void *page) +{ + __flush_page_to_ram(page); + flush_tlb_kernel_page(page); + nocache_page(page); +} + +void mmu_page_dtor(void *page) +{ + cache_page(page); +} + +/* ++andreas: {get,free}_pointer_table rewritten to use unused fields from + struct page instead of separately kmalloced struct. Stolen from + arch/sparc/mm/srmmu.c ... */ + +typedef struct list_head ptable_desc; + +static struct list_head ptable_list[2] = { + LIST_HEAD_INIT(ptable_list[0]), + LIST_HEAD_INIT(ptable_list[1]), +}; + +#define PD_PTABLE(page) ((ptable_desc *)&(virt_to_page(page)->lru)) +#define PD_PAGE(ptable) (list_entry(ptable, struct page, lru)) +#define PD_MARKBITS(dp) (*(unsigned int *)&PD_PAGE(dp)->index) + +static const int ptable_shift[2] = { + 7+2, /* PGD, PMD */ + 6+2, /* PTE */ +}; + +#define ptable_size(type) (1U << ptable_shift[type]) +#define ptable_mask(type) ((1U << (PAGE_SIZE / ptable_size(type))) - 1) + +void __init init_pointer_table(void *table, int type) +{ + ptable_desc *dp; + unsigned long ptable = (unsigned long)table; + unsigned long page = ptable & PAGE_MASK; + unsigned int mask = 1U << ((ptable - page)/ptable_size(type)); + + dp = PD_PTABLE(page); + if (!(PD_MARKBITS(dp) & mask)) { + PD_MARKBITS(dp) = ptable_mask(type); + list_add(dp, &ptable_list[type]); + } + + PD_MARKBITS(dp) &= ~mask; + pr_debug("init_pointer_table: %lx, %x\n", ptable, PD_MARKBITS(dp)); + + /* unreserve the page so it's possible to free that page */ + __ClearPageReserved(PD_PAGE(dp)); + init_page_count(PD_PAGE(dp)); + + return; +} + +void *get_pointer_table(int type) +{ + ptable_desc *dp = ptable_list[type].next; + unsigned int mask = list_empty(&ptable_list[type]) ? 0 : PD_MARKBITS(dp); + unsigned int tmp, off; + + /* + * For a pointer table for a user process address space, a + * table is taken from a page allocated for the purpose. Each + * page can hold 8 pointer tables. The page is remapped in + * virtual address space to be noncacheable. + */ + if (mask == 0) { + void *page; + ptable_desc *new; + + if (!(page = (void *)get_zeroed_page(GFP_KERNEL))) + return NULL; + + if (type == TABLE_PTE) { + /* + * m68k doesn't have SPLIT_PTE_PTLOCKS for not having + * SMP. + */ + pgtable_pte_page_ctor(virt_to_page(page)); + } + + mmu_page_ctor(page); + + new = PD_PTABLE(page); + PD_MARKBITS(new) = ptable_mask(type) - 1; + list_add_tail(new, dp); + + return (pmd_t *)page; + } + + for (tmp = 1, off = 0; (mask & tmp) == 0; tmp <<= 1, off += ptable_size(type)) + ; + PD_MARKBITS(dp) = mask & ~tmp; + if (!PD_MARKBITS(dp)) { + /* move to end of list */ + list_move_tail(dp, &ptable_list[type]); + } + return page_address(PD_PAGE(dp)) + off; +} + +int free_pointer_table(void *table, int type) +{ + ptable_desc *dp; + unsigned long ptable = (unsigned long)table; + unsigned long page = ptable & PAGE_MASK; + unsigned int mask = 1U << ((ptable - page)/ptable_size(type)); + + dp = PD_PTABLE(page); + if (PD_MARKBITS (dp) & mask) + panic ("table already free!"); + + PD_MARKBITS (dp) |= mask; + + if (PD_MARKBITS(dp) == ptable_mask(type)) { + /* all tables in page are free, free page */ + list_del(dp); + mmu_page_dtor((void *)page); + if (type == TABLE_PTE) + pgtable_pte_page_dtor(virt_to_page(page)); + free_page (page); + return 1; + } else if (ptable_list[type].next != dp) { + /* + * move this descriptor to the front of the list, since + * it has one or more free tables. + */ + list_move(dp, &ptable_list[type]); + } + return 0; +} + /* size of memory already mapped in head.S */ extern __initdata unsigned long m68k_init_mapped_size; extern unsigned long availmem; +static pte_t *last_pte_table __initdata = NULL; + static pte_t * __init kernel_page_table(void) { - pte_t *ptablep; + pte_t *pte_table = last_pte_table; - ptablep = (pte_t *)memblock_alloc_low(PAGE_SIZE, PAGE_SIZE); - if (!ptablep) - panic("%s: Failed to allocate %lu bytes align=%lx\n", - __func__, PAGE_SIZE, PAGE_SIZE); + if (((unsigned long)last_pte_table & ~PAGE_MASK) == 0) { + pte_table = (pte_t *)memblock_alloc_low(PAGE_SIZE, PAGE_SIZE); + if (!pte_table) { + panic("%s: Failed to allocate %lu bytes align=%lx\n", + __func__, PAGE_SIZE, PAGE_SIZE); + } - clear_page(ptablep); - __flush_page_to_ram(ptablep); - flush_tlb_kernel_page(ptablep); - nocache_page(ptablep); + clear_page(pte_table); + mmu_page_ctor(pte_table); - return ptablep; + last_pte_table = pte_table; + } + + last_pte_table += PTRS_PER_PTE; + + return pte_table; } -static pmd_t *last_pgtable __initdata = NULL; -pmd_t *zero_pgtable __initdata = NULL; +static pmd_t *last_pmd_table __initdata = NULL; static pmd_t * __init kernel_ptr_table(void) { - if (!last_pgtable) { + if (!last_pmd_table) { unsigned long pmd, last; int i; @@ -91,33 +242,29 @@ static pmd_t * __init kernel_ptr_table(void) last = pmd; } - last_pgtable = (pmd_t *)last; + last_pmd_table = (pmd_t *)last; #ifdef DEBUG - printk("kernel_ptr_init: %p\n", last_pgtable); + printk("kernel_ptr_init: %p\n", last_pmd_table); #endif } - last_pgtable += PTRS_PER_PMD; - if (((unsigned long)last_pgtable & ~PAGE_MASK) == 0) { - last_pgtable = (pmd_t *)memblock_alloc_low(PAGE_SIZE, + last_pmd_table += PTRS_PER_PMD; + if (((unsigned long)last_pmd_table & ~PAGE_MASK) == 0) { + last_pmd_table = (pmd_t *)memblock_alloc_low(PAGE_SIZE, PAGE_SIZE); - if (!last_pgtable) + if (!last_pmd_table) panic("%s: Failed to allocate %lu bytes align=%lx\n", __func__, PAGE_SIZE, PAGE_SIZE); - clear_page(last_pgtable); - __flush_page_to_ram(last_pgtable); - flush_tlb_kernel_page(last_pgtable); - nocache_page(last_pgtable); + clear_page(last_pmd_table); + mmu_page_ctor(last_pmd_table); } - return last_pgtable; + return last_pmd_table; } static void __init map_node(int node) { -#define PTRTREESIZE (256*1024) -#define ROOTTREESIZE (32*1024*1024) unsigned long physaddr, virtaddr, size; pgd_t *pgd_dir; p4d_t *p4d_dir; @@ -135,21 +282,21 @@ static void __init map_node(int node) while (size > 0) { #ifdef DEBUG - if (!(virtaddr & (PTRTREESIZE-1))) + if (!(virtaddr & (PMD_SIZE-1))) printk ("\npa=%#lx va=%#lx ", physaddr & PAGE_MASK, virtaddr); #endif pgd_dir = pgd_offset_k(virtaddr); if (virtaddr && CPU_IS_020_OR_030) { - if (!(virtaddr & (ROOTTREESIZE-1)) && - size >= ROOTTREESIZE) { + if (!(virtaddr & (PGDIR_SIZE-1)) && + size >= PGDIR_SIZE) { #ifdef DEBUG printk ("[very early term]"); #endif pgd_val(*pgd_dir) = physaddr; - size -= ROOTTREESIZE; - virtaddr += ROOTTREESIZE; - physaddr += ROOTTREESIZE; + size -= PGDIR_SIZE; + virtaddr += PGDIR_SIZE; + physaddr += PGDIR_SIZE; continue; } } @@ -169,24 +316,23 @@ static void __init map_node(int node) #ifdef DEBUG printk ("[early term]"); #endif - pmd_dir->pmd[(virtaddr/PTRTREESIZE) & 15] = physaddr; - physaddr += PTRTREESIZE; + pmd_val(*pmd_dir) = physaddr; + physaddr += PMD_SIZE; } else { int i; #ifdef DEBUG printk ("[zero map]"); #endif - zero_pgtable = kernel_ptr_table(); - pte_dir = (pte_t *)zero_pgtable; - pmd_dir->pmd[0] = virt_to_phys(pte_dir) | - _PAGE_TABLE | _PAGE_ACCESSED; + pte_dir = kernel_page_table(); + pmd_set(pmd_dir, pte_dir); + pte_val(*pte_dir++) = 0; physaddr += PAGE_SIZE; - for (i = 1; i < 64; physaddr += PAGE_SIZE, i++) + for (i = 1; i < PTRS_PER_PTE; physaddr += PAGE_SIZE, i++) pte_val(*pte_dir++) = physaddr; } - size -= PTRTREESIZE; - virtaddr += PTRTREESIZE; + size -= PMD_SIZE; + virtaddr += PMD_SIZE; } else { if (!pmd_present(*pmd_dir)) { #ifdef DEBUG diff --git a/arch/microblaze/Kconfig b/arch/microblaze/Kconfig index 6a331bd57ea8..242f58ec086b 100644 --- a/arch/microblaze/Kconfig +++ b/arch/microblaze/Kconfig @@ -47,6 +47,8 @@ config MICROBLAZE select CPU_NO_EFFICIENT_FFS select MMU_GATHER_NO_RANGE if MMU select SPARSE_IRQ + select GENERIC_IRQ_MULTI_HANDLER + select HANDLE_DOMAIN_IRQ # Endianness selection choice diff --git a/arch/microblaze/include/asm/Kbuild b/arch/microblaze/include/asm/Kbuild index e5c9170a07fc..abb33619299b 100644 --- a/arch/microblaze/include/asm/Kbuild +++ b/arch/microblaze/include/asm/Kbuild @@ -1,6 +1,5 @@ # SPDX-License-Identifier: GPL-2.0 generated-y += syscall_table.h -generic-y += barrier.h generic-y += bitops.h generic-y += bug.h generic-y += bugs.h @@ -13,6 +12,7 @@ generic-y += exec.h generic-y += extable.h generic-y += fb.h generic-y += hardirq.h +generic-y += hw_irq.h generic-y += irq_regs.h generic-y += irq_work.h generic-y += kdebug.h @@ -31,8 +31,10 @@ generic-y += preempt.h generic-y += serial.h generic-y += shmparam.h generic-y += syscalls.h +generic-y += tlb.h generic-y += topology.h generic-y += trace_clock.h +generic-y += user.h generic-y += vga.h generic-y += word-at-a-time.h generic-y += xor.h diff --git a/arch/microblaze/include/asm/barrier.h b/arch/microblaze/include/asm/barrier.h new file mode 100644 index 000000000000..70b0a017781b --- /dev/null +++ b/arch/microblaze/include/asm/barrier.h @@ -0,0 +1,13 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +/* + * Copyright (c) 2015 - 2020 Xilinx, Inc. All rights reserved. + */ + +#ifndef _ASM_MICROBLAZE_BARRIER_H +#define _ASM_MICROBLAZE_BARRIER_H + +#define mb() __asm__ __volatile__ ("mbar 1" : : : "memory") + +#include <asm-generic/barrier.h> + +#endif /* _ASM_MICROBLAZE_BARRIER_H */ diff --git a/arch/microblaze/include/asm/cache.h b/arch/microblaze/include/asm/cache.h index 4efe96a036f7..a149b3e711ec 100644 --- a/arch/microblaze/include/asm/cache.h +++ b/arch/microblaze/include/asm/cache.h @@ -1,13 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Cache operations * * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu> * Copyright (C) 2007-2009 PetaLogix * Copyright (C) 2003 John Williams <jwilliams@itee.uq.edu.au> - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. */ #ifndef _ASM_MICROBLAZE_CACHE_H diff --git a/arch/microblaze/include/asm/cacheflush.h b/arch/microblaze/include/asm/cacheflush.h index b091de77b15b..11f56c85056b 100644 --- a/arch/microblaze/include/asm/cacheflush.h +++ b/arch/microblaze/include/asm/cacheflush.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu> * Copyright (C) 2007-2009 PetaLogix @@ -5,11 +6,6 @@ * based on v850 version which was * Copyright (C) 2001,02,03 NEC Electronics Corporation * Copyright (C) 2001,02,03 Miles Bader <miles@gnu.org> - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. - * */ #ifndef _ASM_MICROBLAZE_CACHEFLUSH_H diff --git a/arch/microblaze/include/asm/checksum.h b/arch/microblaze/include/asm/checksum.h index adeecebbb0d1..2e5ebd599943 100644 --- a/arch/microblaze/include/asm/checksum.h +++ b/arch/microblaze/include/asm/checksum.h @@ -1,10 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright (C) 2008 Michal Simek <monstr@monstr.eu> * Copyright (C) 2006 Atmark Techno, Inc. - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. */ #ifndef _ASM_MICROBLAZE_CHECKSUM_H diff --git a/arch/microblaze/include/asm/cmpxchg.h b/arch/microblaze/include/asm/cmpxchg.h index 596300c74509..3523b51aab36 100644 --- a/arch/microblaze/include/asm/cmpxchg.h +++ b/arch/microblaze/include/asm/cmpxchg.h @@ -2,42 +2,8 @@ #ifndef _ASM_MICROBLAZE_CMPXCHG_H #define _ASM_MICROBLAZE_CMPXCHG_H -#include <linux/irqflags.h> - -void __bad_xchg(volatile void *ptr, int size); - -static inline unsigned long __xchg(unsigned long x, volatile void *ptr, - int size) -{ - unsigned long ret; - unsigned long flags; - - switch (size) { - case 1: - local_irq_save(flags); - ret = *(volatile unsigned char *)ptr; - *(volatile unsigned char *)ptr = x; - local_irq_restore(flags); - break; - - case 4: - local_irq_save(flags); - ret = *(volatile unsigned long *)ptr; - *(volatile unsigned long *)ptr = x; - local_irq_restore(flags); - break; - default: - __bad_xchg(ptr, size), ret = 0; - break; - } - - return ret; -} - -#define xchg(ptr, x) \ - ((__typeof__(*(ptr))) __xchg((unsigned long)(x), (ptr), sizeof(*(ptr)))) - -#include <asm-generic/cmpxchg.h> -#include <asm-generic/cmpxchg-local.h> +#ifndef CONFIG_SMP +# include <asm-generic/cmpxchg.h> +#endif #endif /* _ASM_MICROBLAZE_CMPXCHG_H */ diff --git a/arch/microblaze/include/asm/cpuinfo.h b/arch/microblaze/include/asm/cpuinfo.h index 8f4996730552..786ffa669bf1 100644 --- a/arch/microblaze/include/asm/cpuinfo.h +++ b/arch/microblaze/include/asm/cpuinfo.h @@ -1,13 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Generic support for queying CPU info * * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu> * Copyright (C) 2007-2009 PetaLogix * Copyright (C) 2007 John Williams <jwilliams@itee.uq.edu.au> - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. */ #ifndef _ASM_MICROBLAZE_CPUINFO_H diff --git a/arch/microblaze/include/asm/cputable.h b/arch/microblaze/include/asm/cputable.h deleted file mode 100644 index 8b137891791f..000000000000 --- a/arch/microblaze/include/asm/cputable.h +++ /dev/null @@ -1 +0,0 @@ - diff --git a/arch/microblaze/include/asm/current.h b/arch/microblaze/include/asm/current.h index 29303ed825cc..a4bb45be30e6 100644 --- a/arch/microblaze/include/asm/current.h +++ b/arch/microblaze/include/asm/current.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu> * Copyright (C) 2008-2009 PetaLogix * Copyright (C) 2006 Atmark Techno, Inc. - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. */ #ifndef _ASM_MICROBLAZE_CURRENT_H diff --git a/arch/microblaze/include/asm/delay.h b/arch/microblaze/include/asm/delay.h index ea2a9cd9b159..05fe9e3e0039 100644 --- a/arch/microblaze/include/asm/delay.h +++ b/arch/microblaze/include/asm/delay.h @@ -1,10 +1,5 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* - * include/asm-microblaze/delay.h - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * * Copyright (C) 2008 Michal Simek * Copyright (C) 2007 John Williams * Copyright (C) 2006 Atmark Techno, Inc. diff --git a/arch/microblaze/include/asm/dma.h b/arch/microblaze/include/asm/dma.h index 0d73d0c6de37..e6cb6d0725af 100644 --- a/arch/microblaze/include/asm/dma.h +++ b/arch/microblaze/include/asm/dma.h @@ -1,9 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright (C) 2006 Atmark Techno, Inc. - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. */ #ifndef _ASM_MICROBLAZE_DMA_H diff --git a/arch/microblaze/include/asm/elf.h b/arch/microblaze/include/asm/elf.h index 659024449064..5331a8473a46 100644 --- a/arch/microblaze/include/asm/elf.h +++ b/arch/microblaze/include/asm/elf.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu> * Copyright (C) 2008-2009 PetaLogix * Copyright (C) 2006 Atmark Techno, Inc. - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. */ #ifndef _ASM_MICROBLAZE_ELF_H #define _ASM_MICROBLAZE_ELF_H diff --git a/arch/microblaze/include/asm/entry.h b/arch/microblaze/include/asm/entry.h index 596e485ae707..6c42bed41166 100644 --- a/arch/microblaze/include/asm/entry.h +++ b/arch/microblaze/include/asm/entry.h @@ -1,13 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Definitions used by low-level trap handlers * * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu> * Copyright (C) 2007-2009 PetaLogix * Copyright (C) 2007 John Williams <john.williams@petalogix.com> - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. */ #ifndef _ASM_MICROBLAZE_ENTRY_H diff --git a/arch/microblaze/include/asm/exceptions.h b/arch/microblaze/include/asm/exceptions.h index e6a8ddea1dca..d67e65b72215 100644 --- a/arch/microblaze/include/asm/exceptions.h +++ b/arch/microblaze/include/asm/exceptions.h @@ -1,13 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Preliminary support for HW exception handing for Microblaze * * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu> * Copyright (C) 2008-2009 PetaLogix * Copyright (C) 2005 John Williams <jwilliams@itee.uq.edu.au> - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. */ #ifndef _ASM_MICROBLAZE_EXCEPTIONS_H diff --git a/arch/microblaze/include/asm/fixmap.h b/arch/microblaze/include/asm/fixmap.h index 06c0e2b1883f..0379ce5229e3 100644 --- a/arch/microblaze/include/asm/fixmap.h +++ b/arch/microblaze/include/asm/fixmap.h @@ -1,10 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * fixmap.h: compile-time virtual memory allocation * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - * * Copyright (C) 1998 Ingo Molnar * * Copyright 2008 Freescale Semiconductor Inc. diff --git a/arch/microblaze/include/asm/flat.h b/arch/microblaze/include/asm/flat.h index 1ab86770eaee..79a749f4ad04 100644 --- a/arch/microblaze/include/asm/flat.h +++ b/arch/microblaze/include/asm/flat.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * uClinux flat-format executables * * Copyright (C) 2005 John Williams <jwilliams@itee.uq.edu.au> - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. */ #ifndef _ASM_MICROBLAZE_FLAT_H diff --git a/arch/microblaze/include/asm/futex.h b/arch/microblaze/include/asm/futex.h index 8c90357e5983..86131ed84c9a 100644 --- a/arch/microblaze/include/asm/futex.h +++ b/arch/microblaze/include/asm/futex.h @@ -34,7 +34,8 @@ arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr) { int oldval = 0, ret; - pagefault_disable(); + if (!access_ok(uaddr, sizeof(u32))) + return -EFAULT; switch (op) { case FUTEX_OP_SET: @@ -56,8 +57,6 @@ arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr) ret = -ENOSYS; } - pagefault_enable(); - if (!ret) *oval = oldval; diff --git a/arch/microblaze/include/asm/hw_irq.h b/arch/microblaze/include/asm/hw_irq.h deleted file mode 100644 index 8b137891791f..000000000000 --- a/arch/microblaze/include/asm/hw_irq.h +++ /dev/null @@ -1 +0,0 @@ - diff --git a/arch/microblaze/include/asm/io.h b/arch/microblaze/include/asm/io.h index d33c61737b8b..1dd6fae41897 100644 --- a/arch/microblaze/include/asm/io.h +++ b/arch/microblaze/include/asm/io.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu> * Copyright (C) 2007-2009 PetaLogix * Copyright (C) 2006 Atmark Techno, Inc. - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. */ #ifndef _ASM_MICROBLAZE_IO_H diff --git a/arch/microblaze/include/asm/irq.h b/arch/microblaze/include/asm/irq.h index eac2fb4b3fb9..cb6ab55d1d01 100644 --- a/arch/microblaze/include/asm/irq.h +++ b/arch/microblaze/include/asm/irq.h @@ -1,9 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright (C) 2006 Atmark Techno, Inc. - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. */ #ifndef _ASM_MICROBLAZE_IRQ_H @@ -14,7 +11,4 @@ struct pt_regs; extern void do_IRQ(struct pt_regs *regs); -/* should be defined in each interrupt controller driver */ -extern unsigned int xintc_get_irq(void); - #endif /* _ASM_MICROBLAZE_IRQ_H */ diff --git a/arch/microblaze/include/asm/irqflags.h b/arch/microblaze/include/asm/irqflags.h index c9a6262832c4..818c6c9f550d 100644 --- a/arch/microblaze/include/asm/irqflags.h +++ b/arch/microblaze/include/asm/irqflags.h @@ -1,9 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright (C) 2006 Atmark Techno, Inc. - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. */ #ifndef _ASM_MICROBLAZE_IRQFLAGS_H diff --git a/arch/microblaze/include/asm/mmu.h b/arch/microblaze/include/asm/mmu.h index 1f9edddf7f4b..97f1243101cc 100644 --- a/arch/microblaze/include/asm/mmu.h +++ b/arch/microblaze/include/asm/mmu.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu> * Copyright (C) 2008-2009 PetaLogix * Copyright (C) 2006 Atmark Techno, Inc. - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. */ #ifndef _ASM_MICROBLAZE_MMU_H diff --git a/arch/microblaze/include/asm/mmu_context_mm.h b/arch/microblaze/include/asm/mmu_context_mm.h index 97559fe0b953..a1c7dd48454c 100644 --- a/arch/microblaze/include/asm/mmu_context_mm.h +++ b/arch/microblaze/include/asm/mmu_context_mm.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu> * Copyright (C) 2008-2009 PetaLogix * Copyright (C) 2006 Atmark Techno, Inc. - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. */ #ifndef _ASM_MICROBLAZE_MMU_CONTEXT_H diff --git a/arch/microblaze/include/asm/module.h b/arch/microblaze/include/asm/module.h index 7be1347fce42..eda1c183b6c7 100644 --- a/arch/microblaze/include/asm/module.h +++ b/arch/microblaze/include/asm/module.h @@ -1,9 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright (C) 2006 Atmark Techno, Inc. - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. */ #ifndef _ASM_MICROBLAZE_MODULE_H diff --git a/arch/microblaze/include/asm/page.h b/arch/microblaze/include/asm/page.h index f4b44b24b02e..ae7215c94706 100644 --- a/arch/microblaze/include/asm/page.h +++ b/arch/microblaze/include/asm/page.h @@ -1,3 +1,4 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * VM ops * @@ -6,10 +7,6 @@ * Copyright (C) 2006 Atmark Techno, Inc. * Changes for MMU support: * Copyright (C) 2007 Xilinx, Inc. All rights reserved. - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. */ #ifndef _ASM_MICROBLAZE_PAGE_H diff --git a/arch/microblaze/include/asm/pgalloc.h b/arch/microblaze/include/asm/pgalloc.h index fcf1e23f2e0a..1d7a91252d03 100644 --- a/arch/microblaze/include/asm/pgalloc.h +++ b/arch/microblaze/include/asm/pgalloc.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu> * Copyright (C) 2008-2009 PetaLogix * Copyright (C) 2006 Atmark Techno, Inc. - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. */ #ifndef _ASM_MICROBLAZE_PGALLOC_H diff --git a/arch/microblaze/include/asm/pgtable.h b/arch/microblaze/include/asm/pgtable.h index 2def331f9e2c..45b30878fc17 100644 --- a/arch/microblaze/include/asm/pgtable.h +++ b/arch/microblaze/include/asm/pgtable.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu> * Copyright (C) 2008-2009 PetaLogix * Copyright (C) 2006 Atmark Techno, Inc. - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. */ #ifndef _ASM_MICROBLAZE_PGTABLE_H diff --git a/arch/microblaze/include/asm/processor.h b/arch/microblaze/include/asm/processor.h index 66b537b8d138..1ff5a82b76b6 100644 --- a/arch/microblaze/include/asm/processor.h +++ b/arch/microblaze/include/asm/processor.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu> * Copyright (C) 2008-2009 PetaLogix * Copyright (C) 2006 Atmark Techno, Inc. - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. */ #ifndef _ASM_MICROBLAZE_PROCESSOR_H diff --git a/arch/microblaze/include/asm/ptrace.h b/arch/microblaze/include/asm/ptrace.h index 5b18ec124e51..bfcb89df5e26 100644 --- a/arch/microblaze/include/asm/ptrace.h +++ b/arch/microblaze/include/asm/ptrace.h @@ -1,9 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright (C) 2006 Atmark Techno, Inc. - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. */ #ifndef _ASM_MICROBLAZE_PTRACE_H #define _ASM_MICROBLAZE_PTRACE_H diff --git a/arch/microblaze/include/asm/pvr.h b/arch/microblaze/include/asm/pvr.h index 4bbdb4c03b57..186ee8c3c818 100644 --- a/arch/microblaze/include/asm/pvr.h +++ b/arch/microblaze/include/asm/pvr.h @@ -1,13 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Support for the MicroBlaze PVR (Processor Version Register) * * Copyright (C) 2009 - 2011 Michal Simek <monstr@monstr.eu> * Copyright (C) 2007 John Williams <john.williams@petalogix.com> * Copyright (C) 2007 - 2011 PetaLogix - * - * This file is subject to the terms and conditions of the GNU General - * Public License. See the file COPYING in the main directory of this - * archive for more details. */ #ifndef _ASM_MICROBLAZE_PVR_H diff --git a/arch/microblaze/include/asm/registers.h b/arch/microblaze/include/asm/registers.h index 68c3afb73877..ee81e1cba008 100644 --- a/arch/microblaze/include/asm/registers.h +++ b/arch/microblaze/include/asm/registers.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu> * Copyright (C) 2008-2009 PetaLogix * Copyright (C) 2006 Atmark Techno, Inc. - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. */ #ifndef _ASM_MICROBLAZE_REGISTERS_H diff --git a/arch/microblaze/include/asm/sections.h b/arch/microblaze/include/asm/sections.h index 1b281d3ea734..a9311ad84a67 100644 --- a/arch/microblaze/include/asm/sections.h +++ b/arch/microblaze/include/asm/sections.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu> * Copyright (C) 2008-2009 PetaLogix * Copyright (C) 2006 Atmark Techno, Inc. - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. */ #ifndef _ASM_MICROBLAZE_SECTIONS_H diff --git a/arch/microblaze/include/asm/setup.h b/arch/microblaze/include/asm/setup.h index ce9b7b786156..be10da9d87cb 100644 --- a/arch/microblaze/include/asm/setup.h +++ b/arch/microblaze/include/asm/setup.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright (C) 2007-2009 Michal Simek <monstr@monstr.eu> * Copyright (C) 2007-2009 PetaLogix * Copyright (C) 2006 Atmark Techno, Inc. - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. */ #ifndef _ASM_MICROBLAZE_SETUP_H #define _ASM_MICROBLAZE_SETUP_H @@ -13,8 +10,6 @@ #include <uapi/asm/setup.h> # ifndef __ASSEMBLY__ -extern unsigned int boot_cpuid; /* move to smp.h */ - extern char cmd_line[COMMAND_LINE_SIZE]; extern char *klimit; diff --git a/arch/microblaze/include/asm/string.h b/arch/microblaze/include/asm/string.h index aec2f59298b8..34071a848b6a 100644 --- a/arch/microblaze/include/asm/string.h +++ b/arch/microblaze/include/asm/string.h @@ -1,9 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright (C) 2006 Atmark Techno, Inc. - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. */ #ifndef _ASM_MICROBLAZE_STRING_H diff --git a/arch/microblaze/include/asm/switch_to.h b/arch/microblaze/include/asm/switch_to.h index f45baa2c5e09..5afd6d9977b2 100644 --- a/arch/microblaze/include/asm/switch_to.h +++ b/arch/microblaze/include/asm/switch_to.h @@ -1,9 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright (C) 2006 Atmark Techno, Inc. - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. */ #ifndef _ASM_MICROBLAZE_SWITCH_TO_H diff --git a/arch/microblaze/include/asm/thread_info.h b/arch/microblaze/include/asm/thread_info.h index 9afe4b5bd6c8..ad8e8fcb90d3 100644 --- a/arch/microblaze/include/asm/thread_info.h +++ b/arch/microblaze/include/asm/thread_info.h @@ -1,9 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright (C) 2006 Atmark Techno, Inc. - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. */ #ifndef _ASM_MICROBLAZE_THREAD_INFO_H diff --git a/arch/microblaze/include/asm/timex.h b/arch/microblaze/include/asm/timex.h index befcf3de5532..e99cc29cbe57 100644 --- a/arch/microblaze/include/asm/timex.h +++ b/arch/microblaze/include/asm/timex.h @@ -1,9 +1,6 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright (C) 2006 Atmark Techno, Inc. - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. */ #ifndef _ASM_MICROBLAZE_TIMEX_H diff --git a/arch/microblaze/include/asm/tlb.h b/arch/microblaze/include/asm/tlb.h deleted file mode 100644 index 628a78ee0a72..000000000000 --- a/arch/microblaze/include/asm/tlb.h +++ /dev/null @@ -1,17 +0,0 @@ -/* - * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu> - * Copyright (C) 2008-2009 PetaLogix - * Copyright (C) 2006 Atmark Techno, Inc. - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. - */ - -#ifndef _ASM_MICROBLAZE_TLB_H -#define _ASM_MICROBLAZE_TLB_H - -#include <linux/pagemap.h> -#include <asm-generic/tlb.h> - -#endif /* _ASM_MICROBLAZE_TLB_H */ diff --git a/arch/microblaze/include/asm/tlbflush.h b/arch/microblaze/include/asm/tlbflush.h index 2e1353c2d18d..6f8f5c77a050 100644 --- a/arch/microblaze/include/asm/tlbflush.h +++ b/arch/microblaze/include/asm/tlbflush.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu> * Copyright (C) 2008-2009 PetaLogix * Copyright (C) 2006 Atmark Techno, Inc. - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. */ #ifndef _ASM_MICROBLAZE_TLBFLUSH_H diff --git a/arch/microblaze/include/asm/uaccess.h b/arch/microblaze/include/asm/uaccess.h index a1f206b90753..070ba6139a62 100644 --- a/arch/microblaze/include/asm/uaccess.h +++ b/arch/microblaze/include/asm/uaccess.h @@ -1,18 +1,14 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright (C) 2008-2009 Michal Simek <monstr@monstr.eu> * Copyright (C) 2008-2009 PetaLogix * Copyright (C) 2006 Atmark Techno, Inc. - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. */ #ifndef _ASM_MICROBLAZE_UACCESS_H #define _ASM_MICROBLAZE_UACCESS_H #include <linux/kernel.h> -#include <linux/mm.h> #include <asm/mmu.h> #include <asm/page.h> diff --git a/arch/microblaze/include/asm/unaligned.h b/arch/microblaze/include/asm/unaligned.h index b162ed880495..448299beab69 100644 --- a/arch/microblaze/include/asm/unaligned.h +++ b/arch/microblaze/include/asm/unaligned.h @@ -1,10 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright (C) 2008 Michal Simek <monstr@monstr.eu> * Copyright (C) 2006 Atmark Techno, Inc. - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. */ #ifndef _ASM_MICROBLAZE_UNALIGNED_H diff --git a/arch/microblaze/include/asm/unistd.h b/arch/microblaze/include/asm/unistd.h index d79d35ac6253..cfe3f888b432 100644 --- a/arch/microblaze/include/asm/unistd.h +++ b/arch/microblaze/include/asm/unistd.h @@ -1,10 +1,7 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Copyright (C) 2007-2008 Michal Simek <monstr@monstr.eu> * Copyright (C) 2006 Atmark Techno, Inc. - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. */ #ifndef _ASM_MICROBLAZE_UNISTD_H #define _ASM_MICROBLAZE_UNISTD_H diff --git a/arch/microblaze/include/asm/unwind.h b/arch/microblaze/include/asm/unwind.h index d248b7de4b13..c327d673622a 100644 --- a/arch/microblaze/include/asm/unwind.h +++ b/arch/microblaze/include/asm/unwind.h @@ -1,11 +1,8 @@ +/* SPDX-License-Identifier: GPL-2.0 */ /* * Backtrace support for Microblaze * * Copyright (C) 2010 Digital Design Corporation - * - * This file is subject to the terms and conditions of the GNU General Public - * License. See the file "COPYING" in the main directory of this archive - * for more details. */ #ifndef __MICROBLAZE_UNWIND_H diff --git a/arch/microblaze/include/asm/user.h b/arch/microblaze/include/asm/user.h deleted file mode 100644 index 8b137891791f..000000000000 --- a/arch/microblaze/include/asm/user.h +++ /dev/null @@ -1 +0,0 @@ - diff --git a/arch/microblaze/kernel/cpu/cpuinfo-pvr-full.c b/arch/microblaze/kernel/cpu/cpuinfo-pvr-full.c index a32daec96c12..c7ee51b0900e 100644 --- a/arch/microblaze/kernel/cpu/cpuinfo-pvr-full.c +++ b/arch/microblaze/kernel/cpu/cpuinfo-pvr-full.c @@ -22,13 +22,8 @@ #define CI(c, p) { ci->c = PVR_##p(pvr); } -#if defined(CONFIG_EARLY_PRINTK) && defined(CONFIG_SERIAL_UARTLITE_CONSOLE) #define err_printk(x) \ - early_printk("ERROR: Microblaze " x "-different for PVR and DTS\n"); -#else -#define err_printk(x) \ - pr_info("ERROR: Microblaze " x "-different for PVR and DTS\n"); -#endif + pr_err("ERROR: Microblaze " x "-different for PVR and DTS\n"); void set_cpuinfo_pvr_full(struct cpuinfo *ci, struct device_node *cpu) { diff --git a/arch/microblaze/kernel/cpu/pvr.c b/arch/microblaze/kernel/cpu/pvr.c index 8d0dc6db48cf..f139052a39bd 100644 --- a/arch/microblaze/kernel/cpu/pvr.c +++ b/arch/microblaze/kernel/cpu/pvr.c @@ -14,6 +14,7 @@ #include <linux/compiler.h> #include <asm/exceptions.h> #include <asm/pvr.h> +#include <linux/irqflags.h> /* * Until we get an assembler that knows about the pvr registers, diff --git a/arch/microblaze/kernel/entry.S b/arch/microblaze/kernel/entry.S index f6ded356394a..b179f8f6d287 100644 --- a/arch/microblaze/kernel/entry.S +++ b/arch/microblaze/kernel/entry.S @@ -958,6 +958,7 @@ ENTRY(_switch_to) nop ENTRY(_reset) + VM_OFF brai 0; /* Jump to reset vector */ /* These are compiled and loaded into high memory, then diff --git a/arch/microblaze/kernel/irq.c b/arch/microblaze/kernel/irq.c index 903dad822fad..0b37dde60a1e 100644 --- a/arch/microblaze/kernel/irq.c +++ b/arch/microblaze/kernel/irq.c @@ -20,29 +20,10 @@ #include <linux/irqchip.h> #include <linux/of_irq.h> -static u32 concurrent_irq; - void __irq_entry do_IRQ(struct pt_regs *regs) { - unsigned int irq; - struct pt_regs *old_regs = set_irq_regs(regs); trace_hardirqs_off(); - - irq_enter(); - irq = xintc_get_irq(); -next_irq: - BUG_ON(!irq); - generic_handle_irq(irq); - - irq = xintc_get_irq(); - if (irq != -1U) { - pr_debug("next irq: %d\n", irq); - ++concurrent_irq; - goto next_irq; - } - - irq_exit(); - set_irq_regs(old_regs); + handle_arch_irq(regs); trace_hardirqs_on(); } diff --git a/arch/microblaze/kernel/misc.S b/arch/microblaze/kernel/misc.S index 6759af688451..1228a09d8109 100644 --- a/arch/microblaze/kernel/misc.S +++ b/arch/microblaze/kernel/misc.S @@ -39,7 +39,7 @@ _tlbia_1: rsubi r11, r12, MICROBLAZE_TLB_SIZE - 1 bneid r11, _tlbia_1 /* loop for all entries */ addik r12, r12, 1 - /* sync */ + mbar 1 /* sync */ rtsd r15, 8 nop .size _tlbia, . - _tlbia @@ -58,6 +58,7 @@ _tlbie: blti r12, _tlbie_1 /* Check if found */ mts rtlbhi, r0 /* flush: ensure V is clear */ nop + mbar 1 /* sync */ _tlbie_1: rtsd r15, 8 nop diff --git a/arch/microblaze/kernel/setup.c b/arch/microblaze/kernel/setup.c index 511c1ab7f57f..dd121e33b8e3 100644 --- a/arch/microblaze/kernel/setup.c +++ b/arch/microblaze/kernel/setup.c @@ -41,7 +41,6 @@ DEFINE_PER_CPU(unsigned int, ENTRY_SP); /* Saved SP on kernel entry */ DEFINE_PER_CPU(unsigned int, R11_SAVE); /* Temp variable for entry */ DEFINE_PER_CPU(unsigned int, CURRENT_SAVE); /* Saved current pointer */ -unsigned int boot_cpuid; /* * Placed cmd_line to .data section because can be initialized from * ASM code. Default position is BSS section which is cleared @@ -54,7 +53,6 @@ void __init setup_arch(char **cmdline_p) *cmdline_p = boot_command_line; setup_memory(); - parse_early_param(); console_verbose(); diff --git a/arch/microblaze/kernel/timer.c b/arch/microblaze/kernel/timer.c index a6683484b3a1..f8832cf49384 100644 --- a/arch/microblaze/kernel/timer.c +++ b/arch/microblaze/kernel/timer.c @@ -161,13 +161,6 @@ static irqreturn_t timer_interrupt(int irq, void *dev_id) return IRQ_HANDLED; } -static struct irqaction timer_irqaction = { - .handler = timer_interrupt, - .flags = IRQF_TIMER, - .name = "timer", - .dev_id = &clockevent_xilinx_timer, -}; - static __init int xilinx_clockevent_init(void) { clockevent_xilinx_timer.mult = @@ -309,7 +302,8 @@ static int __init xilinx_timer_init(struct device_node *timer) freq_div_hz = timer_clock_freq / HZ; - ret = setup_irq(irq, &timer_irqaction); + ret = request_irq(irq, timer_interrupt, IRQF_TIMER, "timer", + &clockevent_xilinx_timer); if (ret) { pr_err("Failed to setup IRQ"); return ret; diff --git a/arch/microblaze/kernel/vmlinux.lds.S b/arch/microblaze/kernel/vmlinux.lds.S index 2c09fa3a8a01..df07b3d06cd6 100644 --- a/arch/microblaze/kernel/vmlinux.lds.S +++ b/arch/microblaze/kernel/vmlinux.lds.S @@ -13,6 +13,7 @@ ENTRY(microblaze_start) #define RO_EXCEPTION_TABLE_ALIGN 16 +#include <asm/cache.h> #include <asm/page.h> #include <asm-generic/vmlinux.lds.h> #include <asm/thread_info.h> @@ -89,6 +90,8 @@ SECTIONS { _KERNEL_SDA_BASE_ = _ssro + (_ssro_size / 2) ; } + PERCPU_SECTION(L1_CACHE_BYTES) + . = ALIGN(PAGE_SIZE); __init_begin = .; diff --git a/arch/microblaze/mm/init.c b/arch/microblaze/mm/init.c index 1056f1674065..1ffbfa96b9b8 100644 --- a/arch/microblaze/mm/init.c +++ b/arch/microblaze/mm/init.c @@ -201,18 +201,6 @@ void __init mem_init(void) #endif mem_init_print_info(NULL); -#ifdef CONFIG_MMU - pr_info("Kernel virtual memory layout:\n"); - pr_info(" * 0x%08lx..0x%08lx : fixmap\n", FIXADDR_START, FIXADDR_TOP); -#ifdef CONFIG_HIGHMEM - pr_info(" * 0x%08lx..0x%08lx : highmem PTEs\n", - PKMAP_BASE, PKMAP_ADDR(LAST_PKMAP)); -#endif /* CONFIG_HIGHMEM */ - pr_info(" * 0x%08lx..0x%08lx : early ioremap\n", - ioremap_bot, ioremap_base); - pr_info(" * 0x%08lx..0x%08lx : vmalloc & ioremap\n", - (unsigned long)VMALLOC_START, VMALLOC_END); -#endif mem_init_done = 1; } @@ -347,6 +335,8 @@ asmlinkage void __init mmu_init(void) * inside 768MB limit */ memblock_set_current_limit(memory_start + lowmem_size - 1); + parse_early_param(); + /* CMA initialization */ dma_contiguous_reserve(memory_start + lowmem_size - 1); } diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig index 797d7f1ad5fe..f8f3dbdd7ad5 100644 --- a/arch/mips/Kconfig +++ b/arch/mips/Kconfig @@ -4,7 +4,6 @@ config MIPS default y select ARCH_32BIT_OFF_T if !64BIT select ARCH_BINFMT_ELF_STATE if MIPS_FP_SUPPORT - select ARCH_CLOCKSOURCE_DATA select ARCH_HAS_FORTIFY_SOURCE select ARCH_HAS_KCOV select ARCH_HAS_PTE_SPECIAL if !(32BIT && CPU_HAS_RIXI) @@ -51,6 +50,7 @@ config MIPS select HAVE_ASM_MODVERSIONS select HAVE_CBPF_JIT if !64BIT && !CPU_MICROMIPS select HAVE_CONTEXT_TRACKING + select HAVE_TIF_NOHZ select HAVE_COPY_THREAD_TLS select HAVE_C_RECORDMCOUNT select HAVE_DEBUG_KMEMLEAK @@ -486,9 +486,11 @@ config MACH_LOONGSON64 select SYS_SUPPORTS_HIGHMEM select SYS_SUPPORTS_LITTLE_ENDIAN select SYS_SUPPORTS_ZBOOT - select LOONGSON_MC146818 select ZONE_DMA32 select NUMA + select COMMON_CLK + select USE_OF + select BUILTIN_DTB help This enables the support of Loongson-2/3 family of machines. @@ -973,6 +975,9 @@ config CAVIUM_OCTEON_SOC select SYS_HAS_EARLY_PRINTK select SYS_HAS_CPU_CAVIUM_OCTEON select HAVE_PCI + select HAVE_PLAT_DELAY + select HAVE_PLAT_FW_INIT_CMDLINE + select HAVE_PLAT_MEMCPY select ZONE_DMA32 select HOLES_IN_ZONE select GPIOLIB @@ -1229,6 +1234,15 @@ config GENERIC_ISA_DMA_SUPPORT_BROKEN bool select GENERIC_ISA_DMA +config HAVE_PLAT_DELAY + bool + +config HAVE_PLAT_FW_INIT_CMDLINE + bool + +config HAVE_PLAT_MEMCPY + bool + config ISA_DMA_API bool @@ -2676,7 +2690,7 @@ config NUMA Say Y to compile the kernel to support NUMA (Non-Uniform Memory Access). This option improves performance on systems with more than two nodes; on two node systems it is generally better to - leave it disabled; on single node systems disable this option + leave it disabled; on single node systems leave this option disabled. config SYS_SUPPORTS_NUMA @@ -2758,6 +2772,17 @@ config HW_PERF_EVENTS Enable hardware performance counter support for perf events. If disabled, perf events will use software events only. +config DMI + bool "Enable DMI scanning" + depends on MACH_LOONGSON64 + select DMI_SCAN_MACHINE_NON_EFI_FALLBACK + default y + help + Enabled scanning of DMI to identify machine quirks. Say Y + here unless you have verified that your setup is not + affected by entries in the DMI blacklist. Required by PNP + BIOS code. + config SMP bool "Multi-Processing support" depends on SYS_SUPPORTS_SMP @@ -3070,7 +3095,7 @@ endchoice choice prompt "Kernel command line type" if !CMDLINE_OVERRIDE default MIPS_CMDLINE_FROM_DTB if USE_OF && !ATH79 && !MACH_INGENIC && \ - !MIPS_MALTA && \ + !MACH_LOONGSON64 && !MIPS_MALTA && \ !CAVIUM_OCTEON_SOC default MIPS_CMDLINE_FROM_BOOTLOADER diff --git a/arch/mips/alchemy/common/time.c b/arch/mips/alchemy/common/time.c index 3a21a6a18da7..d794ffb67412 100644 --- a/arch/mips/alchemy/common/time.c +++ b/arch/mips/alchemy/common/time.c @@ -72,13 +72,6 @@ static struct clock_event_device au1x_rtcmatch2_clockdev = { .cpumask = cpu_possible_mask, }; -static struct irqaction au1x_rtcmatch2_irqaction = { - .handler = au1x_rtcmatch2_irq, - .flags = IRQF_TIMER, - .name = "timer", - .dev_id = &au1x_rtcmatch2_clockdev, -}; - static int __init alchemy_time_init(unsigned int m2int) { struct clock_event_device *cd = &au1x_rtcmatch2_clockdev; @@ -130,7 +123,9 @@ static int __init alchemy_time_init(unsigned int m2int) cd->min_delta_ns = clockevent_delta2ns(9, cd); cd->min_delta_ticks = 9; /* ~0.28ms */ clockevents_register_device(cd); - setup_irq(m2int, &au1x_rtcmatch2_irqaction); + if (request_irq(m2int, au1x_rtcmatch2_irq, IRQF_TIMER, "timer", + &au1x_rtcmatch2_clockdev)) + pr_err("Failed to register timer interrupt\n"); printk(KERN_INFO "Alchemy clocksource installed\n"); diff --git a/arch/mips/ar7/irq.c b/arch/mips/ar7/irq.c index 93a331fe0641..f0a7942d393e 100644 --- a/arch/mips/ar7/irq.c +++ b/arch/mips/ar7/irq.c @@ -83,12 +83,6 @@ static struct irq_chip ar7_sec_irq_type = { .irq_ack = ar7_ack_sec_irq, }; -static struct irqaction ar7_cascade_action = { - .handler = no_action, - .name = "AR7 cascade interrupt", - .flags = IRQF_NO_THREAD, -}; - static void __init ar7_irq_init(int base) { int i; @@ -116,8 +110,14 @@ static void __init ar7_irq_init(int base) handle_level_irq); } - setup_irq(2, &ar7_cascade_action); - setup_irq(ar7_irq_base, &ar7_cascade_action); + if (request_irq(2, no_action, IRQF_NO_THREAD, "AR7 cascade interrupt", + NULL)) + pr_err("Failed to request irq 2 (AR7 cascade interrupt)\n"); + if (request_irq(ar7_irq_base, no_action, IRQF_NO_THREAD, + "AR7 cascade interrupt", NULL)) { + pr_err("Failed to request irq %d (AR7 cascade interrupt)\n", + ar7_irq_base); + } set_c0_status(IE_IRQ0); } diff --git a/arch/mips/ath25/ar2315.c b/arch/mips/ath25/ar2315.c index 24f619199ee7..e7b53e3960c8 100644 --- a/arch/mips/ath25/ar2315.c +++ b/arch/mips/ath25/ar2315.c @@ -64,11 +64,6 @@ static irqreturn_t ar2315_ahb_err_handler(int cpl, void *dev_id) return IRQ_HANDLED; } -static struct irqaction ar2315_ahb_err_interrupt = { - .handler = ar2315_ahb_err_handler, - .name = "ar2315-ahb-error", -}; - static void ar2315_misc_irq_handler(struct irq_desc *desc) { u32 pending = ar2315_rst_reg_read(AR2315_ISR) & @@ -159,7 +154,9 @@ void __init ar2315_arch_init_irq(void) panic("Failed to add IRQ domain"); irq = irq_create_mapping(domain, AR2315_MISC_IRQ_AHB); - setup_irq(irq, &ar2315_ahb_err_interrupt); + if (request_irq(irq, ar2315_ahb_err_handler, 0, "ar2315-ahb-error", + NULL)) + pr_err("Failed to register ar2315-ahb-error interrupt\n"); irq_set_chained_handler_and_data(AR2315_IRQ_MISC, ar2315_misc_irq_handler, domain); diff --git a/arch/mips/ath25/ar5312.c b/arch/mips/ath25/ar5312.c index 47f3e98974fc..42bf2afb4765 100644 --- a/arch/mips/ath25/ar5312.c +++ b/arch/mips/ath25/ar5312.c @@ -68,11 +68,6 @@ static irqreturn_t ar5312_ahb_err_handler(int cpl, void *dev_id) return IRQ_HANDLED; } -static struct irqaction ar5312_ahb_err_interrupt = { - .handler = ar5312_ahb_err_handler, - .name = "ar5312-ahb-error", -}; - static void ar5312_misc_irq_handler(struct irq_desc *desc) { u32 pending = ar5312_rst_reg_read(AR5312_ISR) & @@ -154,7 +149,9 @@ void __init ar5312_arch_init_irq(void) panic("Failed to add IRQ domain"); irq = irq_create_mapping(domain, AR5312_MISC_IRQ_AHB_PROC); - setup_irq(irq, &ar5312_ahb_err_interrupt); + if (request_irq(irq, ar5312_ahb_err_handler, 0, "ar5312-ahb-error", + NULL)) + pr_err("Failed to register ar5312-ahb-error interrupt\n"); irq_set_chained_handler_and_data(AR5312_IRQ_MISC, ar5312_misc_irq_handler, domain); diff --git a/arch/mips/ath79/setup.c b/arch/mips/ath79/setup.c index 484ee28922a9..acb4fd647a30 100644 --- a/arch/mips/ath79/setup.c +++ b/arch/mips/ath79/setup.c @@ -15,7 +15,7 @@ #include <linux/memblock.h> #include <linux/err.h> #include <linux/clk.h> -#include <linux/clk-provider.h> +#include <linux/of_clk.h> #include <linux/of_fdt.h> #include <linux/irqchip.h> diff --git a/arch/mips/bcm63xx/irq.c b/arch/mips/bcm63xx/irq.c index ec694b9628c0..2548013442f6 100644 --- a/arch/mips/bcm63xx/irq.c +++ b/arch/mips/bcm63xx/irq.c @@ -399,26 +399,6 @@ static struct irq_chip bcm63xx_external_irq_chip = { .irq_set_type = bcm63xx_external_irq_set_type, }; -static struct irqaction cpu_ip2_cascade_action = { - .handler = no_action, - .name = "cascade_ip2", - .flags = IRQF_NO_THREAD, -}; - -#ifdef CONFIG_SMP -static struct irqaction cpu_ip3_cascade_action = { - .handler = no_action, - .name = "cascade_ip3", - .flags = IRQF_NO_THREAD, -}; -#endif - -static struct irqaction cpu_ext_cascade_action = { - .handler = no_action, - .name = "cascade_extirq", - .flags = IRQF_NO_THREAD, -}; - static void bcm63xx_init_irq(void) { int irq_bits; @@ -531,7 +511,7 @@ static void bcm63xx_init_irq(void) void __init arch_init_irq(void) { - int i; + int i, irq; bcm63xx_init_irq(); mips_cpu_irq_init(); @@ -544,14 +524,25 @@ void __init arch_init_irq(void) handle_edge_irq); if (!is_ext_irq_cascaded) { - for (i = 3; i < 3 + ext_irq_count; ++i) - setup_irq(MIPS_CPU_IRQ_BASE + i, &cpu_ext_cascade_action); + for (i = 3; i < 3 + ext_irq_count; ++i) { + irq = MIPS_CPU_IRQ_BASE + i; + if (request_irq(irq, no_action, IRQF_NO_THREAD, + "cascade_extirq", NULL)) { + pr_err("Failed to request irq %d (cascade_extirq)\n", + irq); + } + } } - setup_irq(MIPS_CPU_IRQ_BASE + 2, &cpu_ip2_cascade_action); + irq = MIPS_CPU_IRQ_BASE + 2; + if (request_irq(irq, no_action, IRQF_NO_THREAD, "cascade_ip2", NULL)) + pr_err("Failed to request irq %d (cascade_ip2)\n", irq); #ifdef CONFIG_SMP if (is_ext_irq_cascaded) { - setup_irq(MIPS_CPU_IRQ_BASE + 3, &cpu_ip3_cascade_action); + irq = MIPS_CPU_IRQ_BASE + 3; + if (request_irq(irq, no_action, IRQF_NO_THREAD, "cascade_ip3", + NULL)) + pr_err("Failed to request irq %d (cascade_ip3)\n", irq); bcm63xx_internal_irq_chip.irq_set_affinity = bcm63xx_internal_set_affinity; diff --git a/arch/mips/bmips/setup.c b/arch/mips/bmips/setup.c index 2f81a94c71a6..19308df5f577 100644 --- a/arch/mips/bmips/setup.c +++ b/arch/mips/bmips/setup.c @@ -10,11 +10,11 @@ #include <linux/init.h> #include <linux/bitops.h> #include <linux/memblock.h> -#include <linux/clk-provider.h> #include <linux/ioport.h> #include <linux/kernel.h> #include <linux/io.h> #include <linux/of.h> +#include <linux/of_clk.h> #include <linux/of_fdt.h> #include <linux/of_platform.h> #include <linux/libfdt.h> diff --git a/arch/mips/boot/dts/Makefile b/arch/mips/boot/dts/Makefile index 1e79cab8e269..d429a69bfe30 100644 --- a/arch/mips/boot/dts/Makefile +++ b/arch/mips/boot/dts/Makefile @@ -4,6 +4,7 @@ subdir-y += cavium-octeon subdir-y += img subdir-y += ingenic subdir-y += lantiq +subdir-y += loongson subdir-y += mscc subdir-y += mti subdir-y += netlogic diff --git a/arch/mips/boot/dts/ingenic/ci20.dts b/arch/mips/boot/dts/ingenic/ci20.dts index 37b93166bf22..db0ca250bd1a 100644 --- a/arch/mips/boot/dts/ingenic/ci20.dts +++ b/arch/mips/boot/dts/ingenic/ci20.dts @@ -4,6 +4,9 @@ #include "jz4780.dtsi" #include <dt-bindings/clock/ingenic,tcu.h> #include <dt-bindings/gpio/gpio.h> +#include <dt-bindings/input/input.h> +#include <dt-bindings/interrupt-controller/irq.h> +#include <dt-bindings/regulator/active-semi,8865-regulator.h> / { compatible = "img,ci20", "ingenic,jz4780"; @@ -25,6 +28,17 @@ 0x30000000 0x30000000>; }; + gpio-keys { + compatible = "gpio-keys"; + + sw1 { + label = "ci20:sw1"; + linux,code = <KEY_F13>; + gpios = <&gpd 17 GPIO_ACTIVE_HIGH>; + wakeup-source; + }; + }; + leds { compatible = "gpio-leds"; @@ -56,10 +70,17 @@ eth0_power: fixedregulator@0 { compatible = "regulator-fixed"; regulator-name = "eth0_power"; + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; gpio = <&gpb 25 GPIO_ACTIVE_LOW>; enable-active-high; }; + ir: ir { + compatible = "gpio-ir-receiver"; + gpios = <&gpe 3 GPIO_ACTIVE_LOW>; + }; + wlan0_power: fixedregulator@1 { compatible = "regulator-fixed"; regulator-name = "wlan0_power"; @@ -163,63 +184,71 @@ regulators { vddcore: SUDCDC1 { - regulator-name = "VDDCORE"; + regulator-name = "DCDC_REG1"; regulator-min-microvolt = <1100000>; regulator-max-microvolt = <1100000>; regulator-always-on; }; vddmem: SUDCDC2 { - regulator-name = "VDDMEM"; + regulator-name = "DCDC_REG2"; regulator-min-microvolt = <1500000>; regulator-max-microvolt = <1500000>; regulator-always-on; }; vcc_33: SUDCDC3 { - regulator-name = "VCC33"; + regulator-name = "DCDC_REG3"; regulator-min-microvolt = <3300000>; regulator-max-microvolt = <3300000>; regulator-always-on; }; vcc_50: SUDCDC4 { - regulator-name = "VCC50"; + regulator-name = "SUDCDC_REG4"; regulator-min-microvolt = <5000000>; regulator-max-microvolt = <5000000>; regulator-always-on; }; vcc_25: LDO_REG5 { - regulator-name = "VCC25"; + regulator-name = "LDO_REG5"; regulator-min-microvolt = <2500000>; regulator-max-microvolt = <2500000>; regulator-always-on; }; wifi_io: LDO_REG6 { - regulator-name = "WIFIIO"; + regulator-name = "LDO_REG6"; regulator-min-microvolt = <2500000>; regulator-max-microvolt = <2500000>; regulator-always-on; }; vcc_28: LDO_REG7 { - regulator-name = "VCC28"; + regulator-name = "LDO_REG7"; regulator-min-microvolt = <2800000>; regulator-max-microvolt = <2800000>; regulator-always-on; }; vcc_15: LDO_REG8 { - regulator-name = "VCC15"; + regulator-name = "LDO_REG8"; regulator-min-microvolt = <1500000>; regulator-max-microvolt = <1500000>; regulator-always-on; }; - vcc_18: LDO_REG9 { - regulator-name = "VCC18"; - regulator-min-microvolt = <1800000>; - regulator-max-microvolt = <1800000>; + vrtc_18: LDO_REG9 { + regulator-name = "LDO_REG9"; + /* Despite the datasheet stating 3.3V + * for REG9 and the driver expecting that, + * REG9 outputs 1.8V. + * Likely the CI20 uses a proprietary + * factory programmed chip variant. + * Since this is a simple on/off LDO the + * exact values do not matter. + */ + regulator-min-microvolt = <3300000>; + regulator-max-microvolt = <3300000>; regulator-always-on; }; vcc_11: LDO_REG10 { - regulator-name = "VCC11"; - regulator-min-microvolt = <1100000>; - regulator-max-microvolt = <1100000>; + regulator-name = "LDO_REG10"; + regulator-min-microvolt = <1200000>; + regulator-max-microvolt = <1200000>; regulator-always-on; }; }; @@ -261,7 +290,9 @@ rtc@51 { compatible = "nxp,pcf8563"; reg = <0x51>; - interrupts = <110>; + + interrupt-parent = <&gpf>; + interrupts = <30 IRQ_TYPE_LEVEL_LOW>; }; }; diff --git a/arch/mips/boot/dts/loongson/Makefile b/arch/mips/boot/dts/loongson/Makefile new file mode 100644 index 000000000000..56d379471262 --- /dev/null +++ b/arch/mips/boot/dts/loongson/Makefile @@ -0,0 +1,4 @@ +# SPDX_License_Identifier: GPL_2.0 +dtb-$(CONFIG_MACH_LOONGSON64) += loongson3_4core_rs780e.dtb loongson3_8core_rs780e.dtb + +obj-$(CONFIG_BUILTIN_DTB) += $(addsuffix .o, $(dtb-y)) diff --git a/arch/mips/boot/dts/loongson/loongson3-package.dtsi b/arch/mips/boot/dts/loongson/loongson3-package.dtsi new file mode 100644 index 000000000000..5bb876a4de52 --- /dev/null +++ b/arch/mips/boot/dts/loongson/loongson3-package.dtsi @@ -0,0 +1,64 @@ +// SPDX-License-Identifier: GPL-2.0 + +#include <dt-bindings/interrupt-controller/irq.h> + +/ { + #address-cells = <2>; + #size-cells = <2>; + + cpuintc: interrupt-controller { + #address-cells = <0>; + #interrupt-cells = <1>; + interrupt-controller; + compatible = "mti,cpu-interrupt-controller"; + }; + + package0: bus@1fe00000 { + compatible = "simple-bus"; + #address-cells = <2>; + #size-cells = <1>; + ranges = <0 0x1fe00000 0 0x1fe00000 0x100000 + 0 0x3ff00000 0 0x3ff00000 0x100000 + /* 3A HT Config Space */ + 0xefd 0xfb000000 0xefd 0xfb000000 0x10000000 + /* 3B HT Config Space */ + 0x1efd 0xfb000000 0x1efd 0xfb000000 0x10000000>; + + liointc: interrupt-controller@3ff01400 { + compatible = "loongson,liointc-1.0"; + reg = <0 0x3ff01400 0x64>; + + interrupt-controller; + #interrupt-cells = <2>; + + interrupt-parent = <&cpuintc>; + interrupts = <2>, <3>; + interrupt-names = "int0", "int1"; + + loongson,parent_int_map = <0xf0ffffff>, /* int0 */ + <0x0f000000>, /* int1 */ + <0x00000000>, /* int2 */ + <0x00000000>; /* int3 */ + + }; + + cpu_uart0: serial@1fe001e0 { + compatible = "ns16550a"; + reg = <0 0x1fe001e0 0x8>; + clock-frequency = <33000000>; + interrupt-parent = <&liointc>; + interrupts = <10 IRQ_TYPE_LEVEL_HIGH>; + no-loopback-test; + }; + + cpu_uart1: serial@1fe001e8 { + status = "disabled"; + compatible = "ns16550a"; + reg = <0 0x1fe001e8 0x8>; + clock-frequency = <33000000>; + interrupts = <10 IRQ_TYPE_LEVEL_HIGH>; + interrupt-parent = <&liointc>; + no-loopback-test; + }; + }; +}; diff --git a/arch/mips/boot/dts/loongson/loongson3_4core_rs780e.dts b/arch/mips/boot/dts/loongson/loongson3_4core_rs780e.dts new file mode 100644 index 000000000000..6b5694ca0f95 --- /dev/null +++ b/arch/mips/boot/dts/loongson/loongson3_4core_rs780e.dts @@ -0,0 +1,25 @@ +// SPDX-License-Identifier: GPL-2.0 + +/dts-v1/; + +#include "loongson3-package.dtsi" +#include "rs780e-pch.dtsi" + +/ { + compatible = "loongson,loongson3-4core-rs780e"; +}; + +&package0 { + htpic: interrupt-controller@efdfb000080 { + compatible = "loongson,htpic-1.0"; + reg = <0xefd 0xfb000080 0x40>; + interrupt-controller; + #interrupt-cells = <1>; + + interrupt-parent = <&liointc>; + interrupts = <24 IRQ_TYPE_LEVEL_HIGH>, + <25 IRQ_TYPE_LEVEL_HIGH>, + <26 IRQ_TYPE_LEVEL_HIGH>, + <27 IRQ_TYPE_LEVEL_HIGH>; + }; +}; diff --git a/arch/mips/boot/dts/loongson/loongson3_8core_rs780e.dts b/arch/mips/boot/dts/loongson/loongson3_8core_rs780e.dts new file mode 100644 index 000000000000..ffefa2f829b0 --- /dev/null +++ b/arch/mips/boot/dts/loongson/loongson3_8core_rs780e.dts @@ -0,0 +1,25 @@ +// SPDX-License-Identifier: GPL-2.0 + +/dts-v1/; + +#include "loongson3-package.dtsi" +#include "rs780e-pch.dtsi" + +/ { + compatible = "loongson,loongson3-8core-rs780e"; +}; + +&package0 { + htpic: interrupt-controller@1efdfb000080 { + compatible = "loongson,htpic-1.0"; + reg = <0x1efd 0xfb000080 0x40>; + interrupt-controller; + #interrupt-cells = <1>; + + interrupt-parent = <&liointc>; + interrupts = <24 IRQ_TYPE_LEVEL_HIGH>, + <25 IRQ_TYPE_LEVEL_HIGH>, + <26 IRQ_TYPE_LEVEL_HIGH>, + <27 IRQ_TYPE_LEVEL_HIGH>; + }; +}; diff --git a/arch/mips/boot/dts/loongson/rs780e-pch.dtsi b/arch/mips/boot/dts/loongson/rs780e-pch.dtsi new file mode 100644 index 000000000000..45c54d555fa4 --- /dev/null +++ b/arch/mips/boot/dts/loongson/rs780e-pch.dtsi @@ -0,0 +1,26 @@ +// SPDX-License-Identifier: GPL-2.0 + +/ { + bus@10000000 { + compatible = "simple-bus"; + #address-cells = <2>; + #size-cells = <2>; + ranges = <0 0x10000000 0 0x10000000 0 0x10000000 + 0 0x40000000 0 0x40000000 0 0x40000000 + 0xfd 0xfe000000 0xfd 0xfe000000 0 0x2000000 /* PCI Config Space */>; + + isa { + compatible = "isa"; + #address-cells = <2>; + #size-cells = <1>; + ranges = <1 0 0 0 0x1000>; + + rtc0: rtc@70 { + compatible = "motorola,mc146818"; + reg = <1 0x70 0x8>; + interrupts = <8>; + interrupt-parent = <&htpic>; + }; + }; + }; +}; diff --git a/arch/mips/cavium-octeon/executive/cvmx-helper-board.c b/arch/mips/cavium-octeon/executive/cvmx-helper-board.c index 2e2d45bc850d..abd11b7af22f 100644 --- a/arch/mips/cavium-octeon/executive/cvmx-helper-board.c +++ b/arch/mips/cavium-octeon/executive/cvmx-helper-board.c @@ -207,9 +207,9 @@ int cvmx_helper_board_get_mii_address(int ipd_port) * Returns The ports link status. If the link isn't fully resolved, this must * return zero. */ -cvmx_helper_link_info_t __cvmx_helper_board_link_get(int ipd_port) +union cvmx_helper_link_info __cvmx_helper_board_link_get(int ipd_port) { - cvmx_helper_link_info_t result; + union cvmx_helper_link_info result; WARN(!octeon_is_simulation(), "Using deprecated link status - please update your DT"); diff --git a/arch/mips/cavium-octeon/executive/cvmx-helper-rgmii.c b/arch/mips/cavium-octeon/executive/cvmx-helper-rgmii.c index e812ed9a03bb..c4b58598aa9d 100644 --- a/arch/mips/cavium-octeon/executive/cvmx-helper-rgmii.c +++ b/arch/mips/cavium-octeon/executive/cvmx-helper-rgmii.c @@ -261,7 +261,7 @@ int __cvmx_helper_rgmii_enable(int interface) * * Returns Link state */ -cvmx_helper_link_info_t __cvmx_helper_rgmii_link_get(int ipd_port) +union cvmx_helper_link_info __cvmx_helper_rgmii_link_get(int ipd_port) { int interface = cvmx_helper_get_interface_num(ipd_port); int index = cvmx_helper_get_interface_index_num(ipd_port); @@ -270,7 +270,7 @@ cvmx_helper_link_info_t __cvmx_helper_rgmii_link_get(int ipd_port) asxx_prt_loop.u64 = cvmx_read_csr(CVMX_ASXX_PRT_LOOP(interface)); if (asxx_prt_loop.s.int_loop & (1 << index)) { /* Force 1Gbps full duplex on internal loopback */ - cvmx_helper_link_info_t result; + union cvmx_helper_link_info result; result.u64 = 0; result.s.full_duplex = 1; result.s.link_up = 1; @@ -292,7 +292,7 @@ cvmx_helper_link_info_t __cvmx_helper_rgmii_link_get(int ipd_port) * Returns Zero on success, negative on failure */ int __cvmx_helper_rgmii_link_set(int ipd_port, - cvmx_helper_link_info_t link_info) + union cvmx_helper_link_info link_info) { int result = 0; int interface = cvmx_helper_get_interface_num(ipd_port); diff --git a/arch/mips/cavium-octeon/executive/cvmx-helper-sgmii.c b/arch/mips/cavium-octeon/executive/cvmx-helper-sgmii.c index f6ebf63dc84c..e07d8f15efba 100644 --- a/arch/mips/cavium-octeon/executive/cvmx-helper-sgmii.c +++ b/arch/mips/cavium-octeon/executive/cvmx-helper-sgmii.c @@ -200,7 +200,7 @@ static int __cvmx_helper_sgmii_hardware_init_link(int interface, int index) */ static int __cvmx_helper_sgmii_hardware_init_link_speed(int interface, int index, - cvmx_helper_link_info_t + union cvmx_helper_link_info link_info) { int is_enabled; @@ -394,9 +394,9 @@ int __cvmx_helper_sgmii_enable(int interface) * * Returns Link state */ -cvmx_helper_link_info_t __cvmx_helper_sgmii_link_get(int ipd_port) +union cvmx_helper_link_info __cvmx_helper_sgmii_link_get(int ipd_port) { - cvmx_helper_link_info_t result; + union cvmx_helper_link_info result; union cvmx_pcsx_miscx_ctl_reg pcs_misc_ctl_reg; int interface = cvmx_helper_get_interface_num(ipd_port); int index = cvmx_helper_get_interface_index_num(ipd_port); @@ -505,7 +505,7 @@ cvmx_helper_link_info_t __cvmx_helper_sgmii_link_get(int ipd_port) * Returns Zero on success, negative on failure */ int __cvmx_helper_sgmii_link_set(int ipd_port, - cvmx_helper_link_info_t link_info) + union cvmx_helper_link_info link_info) { int interface = cvmx_helper_get_interface_num(ipd_port); int index = cvmx_helper_get_interface_index_num(ipd_port); diff --git a/arch/mips/cavium-octeon/executive/cvmx-helper-spi.c b/arch/mips/cavium-octeon/executive/cvmx-helper-spi.c index 2a574d272671..525914e9b22d 100644 --- a/arch/mips/cavium-octeon/executive/cvmx-helper-spi.c +++ b/arch/mips/cavium-octeon/executive/cvmx-helper-spi.c @@ -140,9 +140,9 @@ int __cvmx_helper_spi_enable(int interface) * * Returns Link state */ -cvmx_helper_link_info_t __cvmx_helper_spi_link_get(int ipd_port) +union cvmx_helper_link_info __cvmx_helper_spi_link_get(int ipd_port) { - cvmx_helper_link_info_t result; + union cvmx_helper_link_info result; int interface = cvmx_helper_get_interface_num(ipd_port); int index = cvmx_helper_get_interface_index_num(ipd_port); result.u64 = 0; @@ -193,7 +193,7 @@ cvmx_helper_link_info_t __cvmx_helper_spi_link_get(int ipd_port) * * Returns Zero on success, negative on failure */ -int __cvmx_helper_spi_link_set(int ipd_port, cvmx_helper_link_info_t link_info) +int __cvmx_helper_spi_link_set(int ipd_port, union cvmx_helper_link_info link_info) { /* Nothing to do. If we have a SPI4000 then the setup was already performed by cvmx_spi4000_check_speed(). If not then there isn't any link diff --git a/arch/mips/cavium-octeon/executive/cvmx-helper-xaui.c b/arch/mips/cavium-octeon/executive/cvmx-helper-xaui.c index 93a498d05184..842990e8404f 100644 --- a/arch/mips/cavium-octeon/executive/cvmx-helper-xaui.c +++ b/arch/mips/cavium-octeon/executive/cvmx-helper-xaui.c @@ -259,13 +259,13 @@ int __cvmx_helper_xaui_enable(int interface) * * Returns Link state */ -cvmx_helper_link_info_t __cvmx_helper_xaui_link_get(int ipd_port) +union cvmx_helper_link_info __cvmx_helper_xaui_link_get(int ipd_port) { int interface = cvmx_helper_get_interface_num(ipd_port); union cvmx_gmxx_tx_xaui_ctl gmxx_tx_xaui_ctl; union cvmx_gmxx_rx_xaui_ctl gmxx_rx_xaui_ctl; union cvmx_pcsxx_status1_reg pcsxx_status1_reg; - cvmx_helper_link_info_t result; + union cvmx_helper_link_info result; gmxx_tx_xaui_ctl.u64 = cvmx_read_csr(CVMX_GMXX_TX_XAUI_CTL(interface)); gmxx_rx_xaui_ctl.u64 = cvmx_read_csr(CVMX_GMXX_RX_XAUI_CTL(interface)); @@ -299,7 +299,7 @@ cvmx_helper_link_info_t __cvmx_helper_xaui_link_get(int ipd_port) * * Returns Zero on success, negative on failure */ -int __cvmx_helper_xaui_link_set(int ipd_port, cvmx_helper_link_info_t link_info) +int __cvmx_helper_xaui_link_set(int ipd_port, union cvmx_helper_link_info link_info) { int interface = cvmx_helper_get_interface_num(ipd_port); union cvmx_gmxx_tx_xaui_ctl gmxx_tx_xaui_ctl; diff --git a/arch/mips/cavium-octeon/executive/cvmx-helper.c b/arch/mips/cavium-octeon/executive/cvmx-helper.c index de391541d6f7..6044ff471002 100644 --- a/arch/mips/cavium-octeon/executive/cvmx-helper.c +++ b/arch/mips/cavium-octeon/executive/cvmx-helper.c @@ -782,9 +782,9 @@ static int __cvmx_helper_errata_fix_ipd_ptr_alignment(void) #define INTERFACE(port) (port >> 4) #define INDEX(port) (port & 0xf) uint64_t *p64; - cvmx_pko_command_word0_t pko_command; + union cvmx_pko_command_word0 pko_command; union cvmx_buf_ptr g_buffer, pkt_buffer; - cvmx_wqe_t *work; + struct cvmx_wqe *work; int size, num_segs = 0, wqe_pcnt, pkt_pcnt; union cvmx_gmxx_prtx_cfg gmx_cfg; int retry_cnt; @@ -1075,9 +1075,9 @@ int cvmx_helper_initialize_packet_io_local(void) * * Returns Link state */ -cvmx_helper_link_info_t cvmx_helper_link_get(int ipd_port) +union cvmx_helper_link_info cvmx_helper_link_get(int ipd_port) { - cvmx_helper_link_info_t result; + union cvmx_helper_link_info result; int interface = cvmx_helper_get_interface_num(ipd_port); int index = cvmx_helper_get_interface_index_num(ipd_port); @@ -1136,7 +1136,7 @@ EXPORT_SYMBOL_GPL(cvmx_helper_link_get); * * Returns Zero on success, negative on failure */ -int cvmx_helper_link_set(int ipd_port, cvmx_helper_link_info_t link_info) +int cvmx_helper_link_set(int ipd_port, union cvmx_helper_link_info link_info) { int result = -1; int interface = cvmx_helper_get_interface_num(ipd_port); diff --git a/arch/mips/cavium-octeon/octeon-irq.c b/arch/mips/cavium-octeon/octeon-irq.c index 6bd1e97effdf..6501a842c41a 100644 --- a/arch/mips/cavium-octeon/octeon-irq.c +++ b/arch/mips/cavium-octeon/octeon-irq.c @@ -2199,6 +2199,9 @@ static int octeon_irq_cib_map(struct irq_domain *d, } cd = kzalloc(sizeof(*cd), GFP_KERNEL); + if (!cd) + return -ENOMEM; + cd->host_data = host_data; cd->bit = hw; diff --git a/arch/mips/cobalt/irq.c b/arch/mips/cobalt/irq.c index 965c777d3561..ead5ae41378d 100644 --- a/arch/mips/cobalt/irq.c +++ b/arch/mips/cobalt/irq.c @@ -45,18 +45,20 @@ asmlinkage void plat_irq_dispatch(void) spurious_interrupt(); } -static struct irqaction cascade = { - .handler = no_action, - .name = "cascade", - .flags = IRQF_NO_THREAD, -}; - void __init arch_init_irq(void) { mips_cpu_irq_init(); gt641xx_irq_init(); init_i8259_irqs(); - setup_irq(GT641XX_CASCADE_IRQ, &cascade); - setup_irq(I8259_CASCADE_IRQ, &cascade); + if (request_irq(GT641XX_CASCADE_IRQ, no_action, IRQF_NO_THREAD, + "cascade", NULL)) { + pr_err("Failed to request irq %d (cascade)\n", + GT641XX_CASCADE_IRQ); + } + if (request_irq(I8259_CASCADE_IRQ, no_action, IRQF_NO_THREAD, + "cascade", NULL)) { + pr_err("Failed to request irq %d (cascade)\n", + I8259_CASCADE_IRQ); + } } diff --git a/arch/mips/configs/ar7_defconfig b/arch/mips/configs/ar7_defconfig index cef2754bd408..cf9c6329b807 100644 --- a/arch/mips/configs/ar7_defconfig +++ b/arch/mips/configs/ar7_defconfig @@ -21,7 +21,6 @@ CONFIG_MODULE_UNLOAD=y # CONFIG_BLK_DEV_BSG is not set CONFIG_PARTITION_ADVANCED=y CONFIG_BSD_DISKLABEL=y -# CONFIG_IOSCHED_CFQ is not set CONFIG_NET=y CONFIG_PACKET=y CONFIG_UNIX=y diff --git a/arch/mips/configs/ath25_defconfig b/arch/mips/configs/ath25_defconfig index c35add2fd716..7143441f5476 100644 --- a/arch/mips/configs/ath25_defconfig +++ b/arch/mips/configs/ath25_defconfig @@ -22,7 +22,6 @@ CONFIG_HZ_100=y CONFIG_MODULES=y CONFIG_MODULE_UNLOAD=y # CONFIG_BLK_DEV_BSG is not set -# CONFIG_IOSCHED_CFQ is not set # CONFIG_COMPACTION is not set CONFIG_NET=y CONFIG_PACKET=y diff --git a/arch/mips/configs/ath79_defconfig b/arch/mips/configs/ath79_defconfig index 4ffc59cab436..3d14d67dc746 100644 --- a/arch/mips/configs/ath79_defconfig +++ b/arch/mips/configs/ath79_defconfig @@ -23,7 +23,6 @@ CONFIG_PCI=y CONFIG_MODULES=y CONFIG_MODULE_UNLOAD=y # CONFIG_BLK_DEV_BSG is not set -# CONFIG_IOSCHED_CFQ is not set CONFIG_NET=y CONFIG_PACKET=y CONFIG_UNIX=y diff --git a/arch/mips/configs/bcm63xx_defconfig b/arch/mips/configs/bcm63xx_defconfig index 54e2f9a659fb..861f680184b9 100644 --- a/arch/mips/configs/bcm63xx_defconfig +++ b/arch/mips/configs/bcm63xx_defconfig @@ -21,8 +21,6 @@ CONFIG_PCI=y CONFIG_PCCARD=y CONFIG_PCMCIA_BCM63XX=y # CONFIG_BLK_DEV_BSG is not set -# CONFIG_IOSCHED_DEADLINE is not set -# CONFIG_IOSCHED_CFQ is not set CONFIG_NET=y CONFIG_UNIX=y CONFIG_INET=y diff --git a/arch/mips/configs/bmips_be_defconfig b/arch/mips/configs/bmips_be_defconfig index f669a40e085b..032bb51defe8 100644 --- a/arch/mips/configs/bmips_be_defconfig +++ b/arch/mips/configs/bmips_be_defconfig @@ -12,8 +12,6 @@ CONFIG_NR_CPUS=4 # CONFIG_SECCOMP is not set CONFIG_MIPS_O32_FP64_SUPPORT=y # CONFIG_BLK_DEV_BSG is not set -# CONFIG_IOSCHED_DEADLINE is not set -# CONFIG_IOSCHED_CFQ is not set CONFIG_NET=y CONFIG_PACKET=y CONFIG_PACKET_DIAG=y diff --git a/arch/mips/configs/bmips_stb_defconfig b/arch/mips/configs/bmips_stb_defconfig index a0b775893dba..625bd2d7e685 100644 --- a/arch/mips/configs/bmips_stb_defconfig +++ b/arch/mips/configs/bmips_stb_defconfig @@ -21,8 +21,6 @@ CONFIG_CPU_FREQ_GOV_CONSERVATIVE=y CONFIG_CPU_FREQ_GOV_SCHEDUTIL=y CONFIG_BMIPS_CPUFREQ=y # CONFIG_BLK_DEV_BSG is not set -# CONFIG_IOSCHED_DEADLINE is not set -# CONFIG_IOSCHED_CFQ is not set CONFIG_NET=y CONFIG_PACKET=y CONFIG_PACKET_DIAG=y diff --git a/arch/mips/configs/ci20_defconfig b/arch/mips/configs/ci20_defconfig index be41df2a81fb..0db0088bbc1c 100644 --- a/arch/mips/configs/ci20_defconfig +++ b/arch/mips/configs/ci20_defconfig @@ -1,4 +1,5 @@ # CONFIG_LOCALVERSION_AUTO is not set +CONFIG_MODULES=y CONFIG_KERNEL_XZ=y CONFIG_SYSVIPC=y CONFIG_POSIX_MQUEUE=y @@ -88,12 +89,14 @@ CONFIG_I2C_JZ4780=y CONFIG_SPI=y CONFIG_SPI_GPIO=y CONFIG_GPIO_SYSFS=y +CONFIG_KEYBOARD_GPIO=m # CONFIG_HWMON is not set CONFIG_WATCHDOG=y CONFIG_JZ4740_WDT=y CONFIG_REGULATOR=y CONFIG_REGULATOR_DEBUG=y CONFIG_REGULATOR_FIXED_VOLTAGE=y +CONFIG_REGULATOR_ACT8865=y # CONFIG_VGA_CONSOLE is not set # CONFIG_HID is not set # CONFIG_USB_SUPPORT is not set @@ -166,3 +169,21 @@ CONFIG_STACKTRACE=y # CONFIG_FTRACE is not set CONFIG_CMDLINE_BOOL=y CONFIG_CMDLINE="earlycon console=ttyS4,115200 clk_ignore_unused" +CONFIG_LEDS_CLASS=y +CONFIG_LEDS_GPIO=y +CONFIG_LEDS_TRIGGERS=y +CONFIG_LEDS_TRIGGER_MTD=y +CONFIG_LEDS_TRIGGER_TIMER=y +CONFIG_LEDS_TRIGGER_ONESHOT=y +CONFIG_LEDS_TRIGGER_ONESHOT=y +CONFIG_LEDS_TRIGGER_HEARTBEAT=y +CONFIG_LEDS_TRIGGER_BACKLIGHT=m +CONFIG_LEDS_TRIGGER_CPU=y +CONFIG_LEDS_TRIGGER_DEFAULT_ON=y +CONFIG_LEDS_TRIGGER_TRANSIENT=y +CONFIG_LEDS_TRIGGER_CAMERA=m +CONFIG_LIRC=y +CONFIG_MEDIA_SUPPORT=m +CONFIG_RC_DEVICES=y +CONFIG_IR_GPIO_CIR=m +CONFIG_IR_GPIO_TX=m diff --git a/arch/mips/configs/db1xxx_defconfig b/arch/mips/configs/db1xxx_defconfig index bc9b6ae046b2..e6f3e8e3da39 100644 --- a/arch/mips/configs/db1xxx_defconfig +++ b/arch/mips/configs/db1xxx_defconfig @@ -28,7 +28,6 @@ CONFIG_PCMCIA_ALCHEMY_DEVBOARD=y CONFIG_FIRMWARE_MEMMAP=y CONFIG_BLK_DEV_BSGLIB=y CONFIG_PARTITION_ADVANCED=y -CONFIG_DEFAULT_NOOP=y CONFIG_CMA=y CONFIG_CMA_DEBUG=y CONFIG_NET=y diff --git a/arch/mips/configs/generic/board-ni169445.config b/arch/mips/configs/generic/board-ni169445.config index 1ed0d3e8715e..fc3580e4e6bc 100644 --- a/arch/mips/configs/generic/board-ni169445.config +++ b/arch/mips/configs/generic/board-ni169445.config @@ -19,7 +19,6 @@ CONFIG_MTD_NAND_ECC_SW_HAMMING=y CONFIG_MTD_NAND_ECC_SW_BCH=y CONFIG_MTD_RAW_NAND=y CONFIG_MTD_NAND_GPIO=y -CONFIG_MTD_NAND_IDS=y CONFIG_MTD_UBI=y CONFIG_MTD_UBI_BLOCK=y diff --git a/arch/mips/configs/jazz_defconfig b/arch/mips/configs/jazz_defconfig index 328d4dfeb4cb..92085df3e367 100644 --- a/arch/mips/configs/jazz_defconfig +++ b/arch/mips/configs/jazz_defconfig @@ -1,15 +1,17 @@ CONFIG_SYSVIPC=y CONFIG_POSIX_MQUEUE=y +CONFIG_NO_HZ=y +CONFIG_HIGH_RES_TIMERS=y CONFIG_PREEMPT_VOLUNTARY=y CONFIG_BSD_PROCESS_ACCT=y -CONFIG_IKCONFIG=y -CONFIG_IKCONFIG_PROC=y CONFIG_LOG_BUF_SHIFT=14 CONFIG_RELAY=y CONFIG_EXPERT=y CONFIG_SLAB=y CONFIG_MACH_JAZZ=y CONFIG_OLIVETTI_M700=y +CONFIG_MIPS_MAGNUM_4000=y +CONFIG_CPU_LITTLE_ENDIAN=y CONFIG_MODULES=y CONFIG_MODULE_UNLOAD=y CONFIG_MODVERSIONS=y @@ -18,168 +20,17 @@ CONFIG_BINFMT_MISC=m CONFIG_NET=y CONFIG_PACKET=m CONFIG_UNIX=y -CONFIG_NET_KEY=m -CONFIG_NET_KEY_MIGRATE=y CONFIG_INET=y CONFIG_IP_MULTICAST=y CONFIG_NET_IPIP=m -CONFIG_IP_MROUTE=y -CONFIG_IP_PIMSM_V1=y -CONFIG_IP_PIMSM_V2=y -CONFIG_INET_XFRM_MODE_TRANSPORT=m -CONFIG_INET_XFRM_MODE_TUNNEL=m -CONFIG_TCP_MD5SIG=y -CONFIG_IPV6_ROUTER_PREF=y -CONFIG_IPV6_ROUTE_INFO=y CONFIG_INET6_AH=m CONFIG_INET6_ESP=m CONFIG_INET6_IPCOMP=m -CONFIG_IPV6_TUNNEL=m -CONFIG_NETWORK_SECMARK=y -CONFIG_NETFILTER=y -CONFIG_NF_CONNTRACK=m -CONFIG_NF_CONNTRACK_SECMARK=y -CONFIG_NF_CONNTRACK_EVENTS=y -CONFIG_NF_CONNTRACK_AMANDA=m -CONFIG_NF_CONNTRACK_FTP=m -CONFIG_NF_CONNTRACK_H323=m -CONFIG_NF_CONNTRACK_IRC=m -CONFIG_NF_CONNTRACK_PPTP=m -CONFIG_NF_CONNTRACK_SANE=m -CONFIG_NF_CONNTRACK_SIP=m -CONFIG_NF_CONNTRACK_TFTP=m -CONFIG_NF_CT_NETLINK=m -CONFIG_NETFILTER_XT_TARGET_CLASSIFY=m -CONFIG_NETFILTER_XT_TARGET_CONNMARK=m -CONFIG_NETFILTER_XT_TARGET_MARK=m -CONFIG_NETFILTER_XT_TARGET_NFLOG=m -CONFIG_NETFILTER_XT_TARGET_NFQUEUE=m -CONFIG_NETFILTER_XT_TARGET_SECMARK=m -CONFIG_NETFILTER_XT_TARGET_TCPMSS=m -CONFIG_NETFILTER_XT_MATCH_COMMENT=m -CONFIG_NETFILTER_XT_MATCH_CONNBYTES=m -CONFIG_NETFILTER_XT_MATCH_CONNMARK=m -CONFIG_NETFILTER_XT_MATCH_CONNTRACK=m -CONFIG_NETFILTER_XT_MATCH_DCCP=m -CONFIG_NETFILTER_XT_MATCH_ESP=m -CONFIG_NETFILTER_XT_MATCH_HASHLIMIT=m -CONFIG_NETFILTER_XT_MATCH_HELPER=m -CONFIG_NETFILTER_XT_MATCH_LENGTH=m -CONFIG_NETFILTER_XT_MATCH_LIMIT=m -CONFIG_NETFILTER_XT_MATCH_MAC=m -CONFIG_NETFILTER_XT_MATCH_MARK=m -CONFIG_NETFILTER_XT_MATCH_MULTIPORT=m -CONFIG_NETFILTER_XT_MATCH_POLICY=m -CONFIG_NETFILTER_XT_MATCH_PHYSDEV=m -CONFIG_NETFILTER_XT_MATCH_PKTTYPE=m -CONFIG_NETFILTER_XT_MATCH_QUOTA=m -CONFIG_NETFILTER_XT_MATCH_REALM=m -CONFIG_NETFILTER_XT_MATCH_STATE=m -CONFIG_NETFILTER_XT_MATCH_STATISTIC=m -CONFIG_NETFILTER_XT_MATCH_STRING=m -CONFIG_NETFILTER_XT_MATCH_TCPMSS=m -CONFIG_IP_NF_IPTABLES=m -CONFIG_IP_NF_MATCH_AH=m -CONFIG_IP_NF_MATCH_ECN=m -CONFIG_IP_NF_MATCH_TTL=m -CONFIG_IP_NF_FILTER=m -CONFIG_IP_NF_TARGET_REJECT=m -CONFIG_IP_NF_MANGLE=m -CONFIG_IP_NF_TARGET_CLUSTERIP=m -CONFIG_IP_NF_TARGET_ECN=m -CONFIG_IP_NF_TARGET_TTL=m -CONFIG_IP_NF_RAW=m -CONFIG_IP_NF_ARPTABLES=m -CONFIG_IP_NF_ARPFILTER=m -CONFIG_IP_NF_ARP_MANGLE=m -CONFIG_IP6_NF_IPTABLES=m -CONFIG_IP6_NF_MATCH_AH=m -CONFIG_IP6_NF_MATCH_EUI64=m -CONFIG_IP6_NF_MATCH_FRAG=m -CONFIG_IP6_NF_MATCH_OPTS=m -CONFIG_IP6_NF_MATCH_HL=m -CONFIG_IP6_NF_MATCH_IPV6HEADER=m -CONFIG_IP6_NF_MATCH_MH=m -CONFIG_IP6_NF_MATCH_RT=m -CONFIG_IP6_NF_TARGET_HL=m -CONFIG_IP6_NF_FILTER=m -CONFIG_IP6_NF_TARGET_REJECT=m -CONFIG_IP6_NF_MANGLE=m -CONFIG_IP6_NF_RAW=m -CONFIG_DECNET_NF_GRABULATOR=m -CONFIG_BRIDGE_NF_EBTABLES=m -CONFIG_BRIDGE_EBT_BROUTE=m -CONFIG_BRIDGE_EBT_T_FILTER=m -CONFIG_BRIDGE_EBT_T_NAT=m -CONFIG_BRIDGE_EBT_802_3=m -CONFIG_BRIDGE_EBT_AMONG=m -CONFIG_BRIDGE_EBT_ARP=m -CONFIG_BRIDGE_EBT_IP=m -CONFIG_BRIDGE_EBT_LIMIT=m -CONFIG_BRIDGE_EBT_MARK=m -CONFIG_BRIDGE_EBT_PKTTYPE=m -CONFIG_BRIDGE_EBT_STP=m -CONFIG_BRIDGE_EBT_VLAN=m -CONFIG_BRIDGE_EBT_ARPREPLY=m -CONFIG_BRIDGE_EBT_DNAT=m -CONFIG_BRIDGE_EBT_MARK_T=m -CONFIG_BRIDGE_EBT_REDIRECT=m -CONFIG_BRIDGE_EBT_SNAT=m -CONFIG_BRIDGE_EBT_LOG=m -CONFIG_BRIDGE=m -CONFIG_DECNET=m -CONFIG_NET_SCHED=y -CONFIG_NET_SCH_CBQ=m -CONFIG_NET_SCH_HTB=m -CONFIG_NET_SCH_HFSC=m -CONFIG_NET_SCH_PRIO=m -CONFIG_NET_SCH_RED=m -CONFIG_NET_SCH_SFQ=m -CONFIG_NET_SCH_TEQL=m -CONFIG_NET_SCH_TBF=m -CONFIG_NET_SCH_GRED=m -CONFIG_NET_SCH_DSMARK=m -CONFIG_NET_SCH_NETEM=m -CONFIG_NET_CLS_BASIC=m -CONFIG_NET_CLS_TCINDEX=m -CONFIG_NET_CLS_ROUTE4=m -CONFIG_NET_CLS_FW=m -CONFIG_NET_CLS_U32=m -CONFIG_NET_CLS_RSVP=m -CONFIG_NET_CLS_RSVP6=m -CONFIG_HAMRADIO=y -CONFIG_AX25=m -CONFIG_NETROM=m -CONFIG_ROSE=m -CONFIG_MKISS=m -CONFIG_6PACK=m -CONFIG_BPQETHER=m -CONFIG_CONNECTOR=m CONFIG_PARPORT=m CONFIG_PARPORT_PC=m CONFIG_PARPORT_1284=y +CONFIG_DEVTMPFS=y CONFIG_BLK_DEV_FD=m -CONFIG_PARIDE=m -CONFIG_PARIDE_PD=m -CONFIG_PARIDE_PCD=m -CONFIG_PARIDE_PF=m -CONFIG_PARIDE_PT=m -CONFIG_PARIDE_PG=m -CONFIG_PARIDE_ATEN=m -CONFIG_PARIDE_BPCK=m -CONFIG_PARIDE_BPCK6=m -CONFIG_PARIDE_COMM=m -CONFIG_PARIDE_DSTR=m -CONFIG_PARIDE_FIT2=m -CONFIG_PARIDE_FIT3=m -CONFIG_PARIDE_EPAT=m -CONFIG_PARIDE_EPIA=m -CONFIG_PARIDE_FRIQ=m -CONFIG_PARIDE_FRPW=m -CONFIG_PARIDE_KBIC=m -CONFIG_PARIDE_KTTI=m -CONFIG_PARIDE_ON20=m -CONFIG_PARIDE_ON26=m CONFIG_BLK_DEV_LOOP=m CONFIG_BLK_DEV_CRYPTOLOOP=m CONFIG_BLK_DEV_NBD=m @@ -194,26 +45,12 @@ CONFIG_BLK_DEV_SR=m CONFIG_BLK_DEV_SR_VENDOR=y CONFIG_SCSI_CONSTANTS=y CONFIG_SCSI_SCAN_ASYNC=y -CONFIG_SCSI_FC_ATTRS=y -CONFIG_SCSI_SAS_ATTRS=m CONFIG_ISCSI_TCP=m CONFIG_SCSI_PPA=m CONFIG_SCSI_IMM=m CONFIG_JAZZ_ESP=y -CONFIG_MD=y -CONFIG_BLK_DEV_MD=m -CONFIG_MD_LINEAR=m -CONFIG_MD_RAID0=m -CONFIG_MD_RAID1=m -CONFIG_MD_RAID10=m -CONFIG_MD_RAID456=m -CONFIG_MD_MULTIPATH=m -CONFIG_MD_FAULTY=m -CONFIG_BLK_DEV_DM=m -CONFIG_DM_SNAPSHOT=m -CONFIG_DM_MIRROR=m -CONFIG_DM_ZERO=m -CONFIG_DM_MULTIPATH=m +CONFIG_ATA=y +CONFIG_PATA_LEGACY=y CONFIG_NETDEVICES=y CONFIG_BONDING=m CONFIG_DUMMY=m @@ -221,28 +58,18 @@ CONFIG_EQUALIZER=m CONFIG_TUN=m CONFIG_MIPS_JAZZ_SONIC=y CONFIG_NE2000=m -CONFIG_PHYLIB=m -CONFIG_CICADA_PHY=m -CONFIG_DAVICOM_PHY=m -CONFIG_LXT_PHY=m -CONFIG_MARVELL_PHY=m -CONFIG_QSEMI_PHY=m -CONFIG_SMSC_PHY=m -CONFIG_VITESSE_PHY=m -CONFIG_PLIP=m -CONFIG_INPUT_FF_MEMLESS=m CONFIG_SERIO_PARKBD=m CONFIG_SERIO_RAW=m CONFIG_VT_HW_CONSOLE_BINDING=y -CONFIG_SERIAL_8250=m +CONFIG_SERIAL_8250=y +CONFIG_SERIAL_8250_CONSOLE=y CONFIG_SERIAL_8250_EXTENDED=y CONFIG_SERIAL_8250_SHARE_IRQ=y CONFIG_SERIAL_8250_DETECT_IRQ=y CONFIG_SERIAL_8250_RSA=y -CONFIG_PRINTER=m -CONFIG_PPDEV=m -# CONFIG_HW_RANDOM is not set -CONFIG_W1=m +CONFIG_FB=y +CONFIG_FB_G364=y +CONFIG_FRAMEBUFFER_CONSOLE=y # CONFIG_HWMON is not set CONFIG_EXT2_FS=m CONFIG_EXT3_FS=y @@ -263,78 +90,8 @@ CONFIG_VFAT_FS=m CONFIG_NTFS_FS=m CONFIG_PROC_KCORE=y CONFIG_TMPFS=y -CONFIG_ADFS_FS=m -CONFIG_AFFS_FS=m -CONFIG_HFS_FS=m -CONFIG_BEFS_FS=m -CONFIG_BFS_FS=m -CONFIG_EFS_FS=m -CONFIG_CRAMFS=m -CONFIG_VXFS_FS=m -CONFIG_MINIX_FS=m -CONFIG_HPFS_FS=m -CONFIG_QNX4FS_FS=m -CONFIG_ROMFS_FS=m -CONFIG_SYSV_FS=m CONFIG_UFS_FS=m CONFIG_NFS_FS=m CONFIG_NFSD=m CONFIG_NFSD_V3=y CONFIG_CIFS=m -CONFIG_CODA_FS=m -CONFIG_AFS_FS=m -CONFIG_NLS_CODEPAGE_437=m -CONFIG_NLS_CODEPAGE_737=m -CONFIG_NLS_CODEPAGE_775=m -CONFIG_NLS_CODEPAGE_850=m -CONFIG_NLS_CODEPAGE_852=m -CONFIG_NLS_CODEPAGE_855=m -CONFIG_NLS_CODEPAGE_857=m -CONFIG_NLS_CODEPAGE_860=m -CONFIG_NLS_CODEPAGE_861=m -CONFIG_NLS_CODEPAGE_862=m -CONFIG_NLS_CODEPAGE_863=m -CONFIG_NLS_CODEPAGE_864=m -CONFIG_NLS_CODEPAGE_865=m -CONFIG_NLS_CODEPAGE_866=m -CONFIG_NLS_CODEPAGE_869=m -CONFIG_NLS_CODEPAGE_936=m -CONFIG_NLS_CODEPAGE_950=m -CONFIG_NLS_CODEPAGE_932=m -CONFIG_NLS_CODEPAGE_949=m -CONFIG_NLS_CODEPAGE_874=m -CONFIG_NLS_ISO8859_8=m -CONFIG_NLS_CODEPAGE_1250=m -CONFIG_NLS_CODEPAGE_1251=m -CONFIG_NLS_ASCII=m -CONFIG_NLS_ISO8859_1=m -CONFIG_NLS_ISO8859_2=m -CONFIG_NLS_ISO8859_3=m -CONFIG_NLS_ISO8859_4=m -CONFIG_NLS_ISO8859_5=m -CONFIG_NLS_ISO8859_6=m -CONFIG_NLS_ISO8859_7=m -CONFIG_NLS_ISO8859_9=m -CONFIG_NLS_ISO8859_13=m -CONFIG_NLS_ISO8859_14=m -CONFIG_NLS_ISO8859_15=m -CONFIG_NLS_KOI8_R=m -CONFIG_NLS_KOI8_U=m -CONFIG_NLS_UTF8=m -CONFIG_CRYPTO_LRW=m -CONFIG_CRYPTO_PCBC=m -CONFIG_CRYPTO_HMAC=y -CONFIG_CRYPTO_XCBC=m -CONFIG_CRYPTO_MICHAEL_MIC=m -CONFIG_CRYPTO_TGR192=m -CONFIG_CRYPTO_WP512=m -CONFIG_CRYPTO_ANUBIS=m -CONFIG_CRYPTO_BLOWFISH=m -CONFIG_CRYPTO_CAMELLIA=m -CONFIG_CRYPTO_CAST6=m -CONFIG_CRYPTO_FCRYPT=m -CONFIG_CRYPTO_KHAZAD=m -CONFIG_CRYPTO_SERPENT=m -CONFIG_CRYPTO_TEA=m -CONFIG_CRYPTO_TWOFISH=m -CONFIG_CRC_CCITT=m diff --git a/arch/mips/configs/lasat_defconfig b/arch/mips/configs/lasat_defconfig index c66ca3785655..00cf461db971 100644 --- a/arch/mips/configs/lasat_defconfig +++ b/arch/mips/configs/lasat_defconfig @@ -16,8 +16,6 @@ CONFIG_HZ_1000=y # CONFIG_SECCOMP is not set CONFIG_PCI=y # CONFIG_BLK_DEV_BSG is not set -# CONFIG_IOSCHED_DEADLINE is not set -# CONFIG_IOSCHED_CFQ is not set CONFIG_NET=y CONFIG_PACKET=y CONFIG_UNIX=y diff --git a/arch/mips/configs/lemote2f_defconfig b/arch/mips/configs/lemote2f_defconfig index f9f93427c9bd..8254d7d1396f 100644 --- a/arch/mips/configs/lemote2f_defconfig +++ b/arch/mips/configs/lemote2f_defconfig @@ -26,7 +26,7 @@ CONFIG_MODULES=y CONFIG_MODULE_UNLOAD=y CONFIG_MODVERSIONS=y CONFIG_BLK_DEV_INTEGRITY=y -CONFIG_IOSCHED_DEADLINE=m +CONFIG_MQ_IOSCHED_DEADLINE=m CONFIG_BINFMT_MISC=m CONFIG_NET=y CONFIG_PACKET=y diff --git a/arch/mips/configs/loongson3_defconfig b/arch/mips/configs/loongson3_defconfig index 360c6b2d397a..51675f5000d6 100644 --- a/arch/mips/configs/loongson3_defconfig +++ b/arch/mips/configs/loongson3_defconfig @@ -38,8 +38,9 @@ CONFIG_MODULE_UNLOAD=y CONFIG_MODULE_FORCE_UNLOAD=y CONFIG_MODVERSIONS=y CONFIG_PARTITION_ADVANCED=y -CONFIG_IOSCHED_DEADLINE=m -CONFIG_CFQ_GROUP_IOSCHED=y +CONFIG_MQ_IOSCHED_DEADLINE=m +CONFIG_IOSCHED_BFQ=y +CONFIG_BFQ_GROUP_IOSCHED=y CONFIG_BINFMT_MISC=m CONFIG_KSM=y CONFIG_NET=y diff --git a/arch/mips/configs/msp71xx_defconfig b/arch/mips/configs/msp71xx_defconfig index 0fdc03fda12e..6ad1a2381226 100644 --- a/arch/mips/configs/msp71xx_defconfig +++ b/arch/mips/configs/msp71xx_defconfig @@ -14,8 +14,6 @@ CONFIG_PCI=y CONFIG_MODULES=y CONFIG_MODULE_UNLOAD=y CONFIG_MODVERSIONS=y -# CONFIG_IOSCHED_DEADLINE is not set -# CONFIG_IOSCHED_CFQ is not set CONFIG_NET=y CONFIG_UNIX=y CONFIG_XFRM_USER=y diff --git a/arch/mips/configs/pnx8335_stb225_defconfig b/arch/mips/configs/pnx8335_stb225_defconfig index 738ba3b1374b..d06db6b87959 100644 --- a/arch/mips/configs/pnx8335_stb225_defconfig +++ b/arch/mips/configs/pnx8335_stb225_defconfig @@ -14,8 +14,6 @@ CONFIG_HZ_128=y CONFIG_MODULES=y CONFIG_MODULE_UNLOAD=y # CONFIG_BLK_DEV_BSG is not set -# CONFIG_IOSCHED_DEADLINE is not set -# CONFIG_IOSCHED_CFQ is not set CONFIG_NET=y CONFIG_PACKET=y CONFIG_UNIX=y diff --git a/arch/mips/configs/rb532_defconfig b/arch/mips/configs/rb532_defconfig index 5b947183852b..252d472387aa 100644 --- a/arch/mips/configs/rb532_defconfig +++ b/arch/mips/configs/rb532_defconfig @@ -23,7 +23,6 @@ CONFIG_MODULE_UNLOAD=y CONFIG_PARTITION_ADVANCED=y CONFIG_MAC_PARTITION=y CONFIG_BSD_DISKLABEL=y -# CONFIG_IOSCHED_CFQ is not set CONFIG_NET=y CONFIG_PACKET=y CONFIG_UNIX=y diff --git a/arch/mips/configs/rt305x_defconfig b/arch/mips/configs/rt305x_defconfig index 110948bc6b39..8c2ead53007a 100644 --- a/arch/mips/configs/rt305x_defconfig +++ b/arch/mips/configs/rt305x_defconfig @@ -21,7 +21,6 @@ CONFIG_MODULES=y CONFIG_MODULE_UNLOAD=y # CONFIG_BLK_DEV_BSG is not set CONFIG_PARTITION_ADVANCED=y -# CONFIG_IOSCHED_CFQ is not set # CONFIG_COREDUMP is not set # CONFIG_COMPACTION is not set CONFIG_NET=y diff --git a/arch/mips/configs/xway_defconfig b/arch/mips/configs/xway_defconfig index 49b5ea6eff62..9abbc0debc2a 100644 --- a/arch/mips/configs/xway_defconfig +++ b/arch/mips/configs/xway_defconfig @@ -23,7 +23,6 @@ CONFIG_MODULES=y CONFIG_MODULE_UNLOAD=y # CONFIG_BLK_DEV_BSG is not set CONFIG_PARTITION_ADVANCED=y -# CONFIG_IOSCHED_CFQ is not set # CONFIG_COREDUMP is not set # CONFIG_COMPACTION is not set CONFIG_NET=y diff --git a/arch/mips/dec/setup.c b/arch/mips/dec/setup.c index 61a0bf13e308..d4e868b828e5 100644 --- a/arch/mips/dec/setup.c +++ b/arch/mips/dec/setup.c @@ -103,28 +103,8 @@ int_ptr asic_mask_nr_tbl[DEC_MAX_ASIC_INTS][2] = { int cpu_fpu_mask = DEC_CPU_IRQ_MASK(DEC_CPU_INR_FPU); int *fpu_kstat_irq; -static struct irqaction ioirq = { - .handler = no_action, - .name = "cascade", - .flags = IRQF_NO_THREAD, -}; -static struct irqaction fpuirq = { - .handler = no_action, - .name = "fpu", - .flags = IRQF_NO_THREAD, -}; - -static struct irqaction busirq = { - .name = "bus error", - .flags = IRQF_NO_THREAD, -}; - -static struct irqaction haltirq = { - .handler = dec_intr_halt, - .name = "halt", - .flags = IRQF_NO_THREAD, -}; - +static irq_handler_t busirq_handler; +static unsigned int busirq_flags = IRQF_NO_THREAD; /* * Bus error (DBE/IBE exceptions and bus interrupts) handling setup. @@ -134,21 +114,21 @@ static void __init dec_be_init(void) switch (mips_machtype) { case MACH_DS23100: /* DS2100/DS3100 Pmin/Pmax */ board_be_handler = dec_kn01_be_handler; - busirq.handler = dec_kn01_be_interrupt; - busirq.flags |= IRQF_SHARED; + busirq_handler = dec_kn01_be_interrupt; + busirq_flags |= IRQF_SHARED; dec_kn01_be_init(); break; case MACH_DS5000_1XX: /* DS5000/1xx 3min */ case MACH_DS5000_XX: /* DS5000/xx Maxine */ board_be_handler = dec_kn02xa_be_handler; - busirq.handler = dec_kn02xa_be_interrupt; + busirq_handler = dec_kn02xa_be_interrupt; dec_kn02xa_be_init(); break; case MACH_DS5000_200: /* DS5000/200 3max */ case MACH_DS5000_2X0: /* DS5000/240 3max+ */ case MACH_DS5900: /* DS5900 bigmax */ board_be_handler = dec_ecc_be_handler; - busirq.handler = dec_ecc_be_interrupt; + busirq_handler = dec_ecc_be_interrupt; dec_ecc_be_init(); break; } @@ -764,20 +744,29 @@ void __init arch_init_irq(void) int irq_fpu; irq_fpu = dec_interrupt[DEC_IRQ_FPU]; - setup_irq(irq_fpu, &fpuirq); + if (request_irq(irq_fpu, no_action, IRQF_NO_THREAD, "fpu", + NULL)) + pr_err("Failed to register fpu interrupt\n"); desc_fpu = irq_to_desc(irq_fpu); fpu_kstat_irq = this_cpu_ptr(desc_fpu->kstat_irqs); } - if (dec_interrupt[DEC_IRQ_CASCADE] >= 0) - setup_irq(dec_interrupt[DEC_IRQ_CASCADE], &ioirq); - + if (dec_interrupt[DEC_IRQ_CASCADE] >= 0) { + if (request_irq(dec_interrupt[DEC_IRQ_CASCADE], no_action, + IRQF_NO_THREAD, "cascade", NULL)) + pr_err("Failed to register cascade interrupt\n"); + } /* Register the bus error interrupt. */ - if (dec_interrupt[DEC_IRQ_BUS] >= 0 && busirq.handler) - setup_irq(dec_interrupt[DEC_IRQ_BUS], &busirq); - + if (dec_interrupt[DEC_IRQ_BUS] >= 0 && busirq_handler) { + if (request_irq(dec_interrupt[DEC_IRQ_BUS], busirq_handler, + busirq_flags, "bus error", busirq_handler)) + pr_err("Failed to register bus error interrupt\n"); + } /* Register the HALT interrupt. */ - if (dec_interrupt[DEC_IRQ_HALT] >= 0) - setup_irq(dec_interrupt[DEC_IRQ_HALT], &haltirq); + if (dec_interrupt[DEC_IRQ_HALT] >= 0) { + if (request_irq(dec_interrupt[DEC_IRQ_HALT], dec_intr_halt, + IRQF_NO_THREAD, "halt", NULL)) + pr_err("Failed to register halt interrupt\n"); + } } asmlinkage unsigned int dec_irq_dispatch(unsigned int irq) diff --git a/arch/mips/emma/markeins/irq.c b/arch/mips/emma/markeins/irq.c index 09427a49e7ae..4aebf559be2e 100644 --- a/arch/mips/emma/markeins/irq.c +++ b/arch/mips/emma/markeins/irq.c @@ -153,14 +153,6 @@ void emma2rh_gpio_irq_init(void) handle_edge_irq, "edge"); } -static struct irqaction irq_cascade = { - .handler = no_action, - .flags = IRQF_NO_THREAD, - .name = "cascade", - .dev_id = NULL, - .next = NULL, -}; - /* * the first level int-handler will jump here if it is a emma2rh irq */ @@ -236,6 +228,7 @@ void emma2rh_irq_dispatch(void) void __init arch_init_irq(void) { u32 reg; + int irq; /* by default, interrupts are disabled. */ emma2rh_out32(EMMA2RH_BHIF_INT_EN_0, 0); @@ -272,9 +265,15 @@ void __init arch_init_irq(void) mips_cpu_irq_init(); /* setup cascade interrupts */ - setup_irq(EMMA2RH_IRQ_BASE + EMMA2RH_SW_CASCADE, &irq_cascade); - setup_irq(EMMA2RH_IRQ_BASE + EMMA2RH_GPIO_CASCADE, &irq_cascade); - setup_irq(MIPS_CPU_IRQ_BASE + 2, &irq_cascade); + irq = EMMA2RH_IRQ_BASE + EMMA2RH_SW_CASCADE; + if (request_irq(irq, no_action, IRQF_NO_THREAD, "cascade", NULL)) + pr_err("Failed to request irq %d (cascade)\n", irq); + irq = EMMA2RH_IRQ_BASE + EMMA2RH_GPIO_CASCADE; + if (request_irq(irq, no_action, IRQF_NO_THREAD, "cascade", NULL)) + pr_err("Failed to request irq %d (cascade)\n", irq); + irq = MIPS_CPU_IRQ_BASE + 2; + if (request_irq(irq, no_action, IRQF_NO_THREAD, "cascade", NULL)) + pr_err("Failed to request irq %d (cascade)\n", irq); } asmlinkage void plat_irq_dispatch(void) diff --git a/arch/mips/fw/lib/cmdline.c b/arch/mips/fw/lib/cmdline.c index 6ecda64ad184..f24cbb4a39b5 100644 --- a/arch/mips/fw/lib/cmdline.c +++ b/arch/mips/fw/lib/cmdline.c @@ -16,6 +16,7 @@ int fw_argc; int *_fw_argv; int *_fw_envp; +#ifndef CONFIG_HAVE_PLAT_FW_INIT_CMDLINE void __init fw_init_cmdline(void) { int i; @@ -41,6 +42,7 @@ void __init fw_init_cmdline(void) strlcat(arcs_cmdline, " ", COMMAND_LINE_SIZE); } } +#endif char * __init fw_getcmdline(void) { diff --git a/arch/mips/generic/init.c b/arch/mips/generic/init.c index 1de215b283d6..805d0135a9f4 100644 --- a/arch/mips/generic/init.c +++ b/arch/mips/generic/init.c @@ -5,10 +5,10 @@ */ #include <linux/clk.h> -#include <linux/clk-provider.h> #include <linux/clocksource.h> #include <linux/init.h> #include <linux/irqchip.h> +#include <linux/of_clk.h> #include <linux/of_fdt.h> #include <asm/bootinfo.h> diff --git a/arch/mips/include/asm/clocksource.h b/arch/mips/include/asm/clocksource.h index cab9ae9f1e14..2f1ebbea3d72 100644 --- a/arch/mips/include/asm/clocksource.h +++ b/arch/mips/include/asm/clocksource.h @@ -3,23 +3,9 @@ * Copyright (C) 2015 Imagination Technologies * Author: Alex Smith <alex.smith@imgtec.com> */ - #ifndef __ASM_CLOCKSOURCE_H #define __ASM_CLOCKSOURCE_H -#include <linux/types.h> - -/* VDSO clocksources. */ -#define VDSO_CLOCK_NONE 0 /* No suitable clocksource. */ -#define VDSO_CLOCK_R4K 1 /* Use the coprocessor 0 count. */ -#define VDSO_CLOCK_GIC 2 /* Use the GIC. */ - -/** - * struct arch_clocksource_data - Architecture-specific clocksource information. - * @vdso_clock_mode: Method the VDSO should use to access the clocksource. - */ -struct arch_clocksource_data { - u8 vdso_clock_mode; -}; +#include <asm/vdso/clocksource.h> #endif /* __ASM_CLOCKSOURCE_H */ diff --git a/arch/mips/include/asm/dmi.h b/arch/mips/include/asm/dmi.h new file mode 100644 index 000000000000..27415a288adf --- /dev/null +++ b/arch/mips/include/asm/dmi.h @@ -0,0 +1,20 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef _ASM_DMI_H +#define _ASM_DMI_H + +#include <linux/io.h> +#include <linux/memblock.h> + +#define dmi_early_remap(x, l) ioremap_cache(x, l) +#define dmi_early_unmap(x, l) iounmap(x) +#define dmi_remap(x, l) ioremap_cache(x, l) +#define dmi_unmap(x) iounmap(x) + +/* MIPS initialize DMI scan before SLAB is ready, so we use memblock here */ +#define dmi_alloc(l) memblock_alloc_low(l, PAGE_SIZE) + +#if defined(CONFIG_MACH_LOONGSON64) +#define SMBIOS_ENTRY_POINT_SCAN_START 0xFFFE000 +#endif + +#endif /* _ASM_DMI_H */ diff --git a/arch/mips/include/asm/elf.h b/arch/mips/include/asm/elf.h index f8f44b1a6cbb..5aa29ced6970 100644 --- a/arch/mips/include/asm/elf.h +++ b/arch/mips/include/asm/elf.h @@ -445,6 +445,9 @@ extern unsigned int elf_hwcap; #define ELF_PLATFORM __elf_platform extern const char *__elf_platform; +#define ELF_BASE_PLATFORM __elf_base_platform +extern const char *__elf_base_platform; + /* * See comments in asm-alpha/elf.h, this is the same thing * on the MIPS. diff --git a/arch/mips/include/asm/futex.h b/arch/mips/include/asm/futex.h index 110220705e97..2bf8f6014579 100644 --- a/arch/mips/include/asm/futex.h +++ b/arch/mips/include/asm/futex.h @@ -89,7 +89,8 @@ arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr) { int oldval = 0, ret; - pagefault_disable(); + if (!access_ok(uaddr, sizeof(u32))) + return -EFAULT; switch (op) { case FUTEX_OP_SET: @@ -116,8 +117,6 @@ arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr) ret = -ENOSYS; } - pagefault_enable(); - if (!ret) *oval = oldval; diff --git a/arch/mips/include/asm/i8259.h b/arch/mips/include/asm/i8259.h index 97a5e41ed1ab..a54b9649de22 100644 --- a/arch/mips/include/asm/i8259.h +++ b/arch/mips/include/asm/i8259.h @@ -36,6 +36,7 @@ extern raw_spinlock_t i8259A_lock; extern void make_8259A_irq(unsigned int irq); extern void init_i8259_irqs(void); +extern struct irq_domain *__init_i8259_irqs(struct device_node *node); /** * i8159_set_poll() - Override the i8259 polling function diff --git a/arch/mips/include/asm/mach-ar7/irq.h b/arch/mips/include/asm/mach-ar7/irq.h index 7ad10e379e2b..46bb730ea970 100644 --- a/arch/mips/include/asm/mach-ar7/irq.h +++ b/arch/mips/include/asm/mach-ar7/irq.h @@ -11,6 +11,6 @@ #define NR_IRQS 256 -#include_next <irq.h> +#include <asm/mach-generic/irq.h> #endif /* __ASM_AR7_IRQ_H */ diff --git a/arch/mips/include/asm/mach-ath79/irq.h b/arch/mips/include/asm/mach-ath79/irq.h index 2df1abf9e5af..882534be0715 100644 --- a/arch/mips/include/asm/mach-ath79/irq.h +++ b/arch/mips/include/asm/mach-ath79/irq.h @@ -27,6 +27,6 @@ #define ATH79_IP3_IRQ_COUNT 3 #define ATH79_IP3_IRQ(_x) (ATH79_IP3_IRQ_BASE + (_x)) -#include_next <irq.h> +#include <asm/mach-generic/irq.h> #endif /* __ASM_MACH_ATH79_IRQ_H */ diff --git a/arch/mips/include/asm/mach-au1x00/au1xxx_ide.h b/arch/mips/include/asm/mach-au1x00/au1xxx_ide.h deleted file mode 100644 index bb91b8923a49..000000000000 --- a/arch/mips/include/asm/mach-au1x00/au1xxx_ide.h +++ /dev/null @@ -1,178 +0,0 @@ -/* - * include/asm-mips/mach-au1x00/au1xxx_ide.h version 01.30.00 Aug. 02 2005 - * - * BRIEF MODULE DESCRIPTION - * AMD Alchemy Au1xxx IDE interface routines over the Static Bus - * - * Copyright (c) 2003-2005 AMD, Personal Connectivity Solutions - * - * This program is free software; you can redistribute it and/or modify it under - * the terms of the GNU General Public License as published by the Free Software - * Foundation; either version 2 of the License, or (at your option) any later - * version. - * - * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, - * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND - * FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR - * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR - * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF - * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS - * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN - * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) - * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE - * POSSIBILITY OF SUCH DAMAGE. - * - * You should have received a copy of the GNU General Public License along with - * this program; if not, write to the Free Software Foundation, Inc., - * 675 Mass Ave, Cambridge, MA 02139, USA. - * - * Note: for more information, please refer "AMD Alchemy Au1200/Au1550 IDE - * Interface and Linux Device Driver" Application Note. - */ - -#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA -#define DMA_WAIT_TIMEOUT 100 -#define NUM_DESCRIPTORS PRD_ENTRIES -#else /* CONFIG_BLK_DEV_IDE_AU1XXX_PIO_DBDMA */ -#define NUM_DESCRIPTORS 2 -#endif - -#ifndef AU1XXX_ATA_RQSIZE -#define AU1XXX_ATA_RQSIZE 128 -#endif - -/* Disable Burstable-Support for DBDMA */ -#ifndef CONFIG_BLK_DEV_IDE_AU1XXX_BURSTABLE_ON -#define CONFIG_BLK_DEV_IDE_AU1XXX_BURSTABLE_ON 0 -#endif - -typedef struct { - u32 tx_dev_id, rx_dev_id, target_dev_id; - u32 tx_chan, rx_chan; - void *tx_desc_head, *rx_desc_head; - ide_hwif_t *hwif; -#ifdef CONFIG_BLK_DEV_IDE_AU1XXX_MDMA2_DBDMA - ide_drive_t *drive; - struct dbdma_cmd *dma_table_cpu; - dma_addr_t dma_table_dma; -#endif - int irq; - u32 regbase; - int ddma_id; -} _auide_hwif; - -/******************************************************************************/ -/* PIO Mode timing calculation : */ -/* */ -/* Static Bus Spec ATA Spec */ -/* Tcsoe = t1 */ -/* Toecs = t9 */ -/* Twcs = t9 */ -/* Tcsh = t2i | t2 */ -/* Tcsoff = t2i | t2 */ -/* Twp = t2 */ -/* Tcsw = t1 */ -/* Tpm = 0 */ -/* Ta = t1+t2 */ -/******************************************************************************/ - -#define TCSOE_MASK (0x07 << 29) -#define TOECS_MASK (0x07 << 26) -#define TWCS_MASK (0x07 << 28) -#define TCSH_MASK (0x0F << 24) -#define TCSOFF_MASK (0x07 << 20) -#define TWP_MASK (0x3F << 14) -#define TCSW_MASK (0x0F << 10) -#define TPM_MASK (0x0F << 6) -#define TA_MASK (0x3F << 0) -#define TS_MASK (1 << 8) - -/* Timing parameters PIO mode 0 */ -#define SBC_IDE_PIO0_TCSOE (0x04 << 29) -#define SBC_IDE_PIO0_TOECS (0x01 << 26) -#define SBC_IDE_PIO0_TWCS (0x02 << 28) -#define SBC_IDE_PIO0_TCSH (0x08 << 24) -#define SBC_IDE_PIO0_TCSOFF (0x07 << 20) -#define SBC_IDE_PIO0_TWP (0x10 << 14) -#define SBC_IDE_PIO0_TCSW (0x04 << 10) -#define SBC_IDE_PIO0_TPM (0x00 << 6) -#define SBC_IDE_PIO0_TA (0x15 << 0) -/* Timing parameters PIO mode 1 */ -#define SBC_IDE_PIO1_TCSOE (0x03 << 29) -#define SBC_IDE_PIO1_TOECS (0x01 << 26) -#define SBC_IDE_PIO1_TWCS (0x01 << 28) -#define SBC_IDE_PIO1_TCSH (0x06 << 24) -#define SBC_IDE_PIO1_TCSOFF (0x06 << 20) -#define SBC_IDE_PIO1_TWP (0x08 << 14) -#define SBC_IDE_PIO1_TCSW (0x03 << 10) -#define SBC_IDE_PIO1_TPM (0x00 << 6) -#define SBC_IDE_PIO1_TA (0x0B << 0) -/* Timing parameters PIO mode 2 */ -#define SBC_IDE_PIO2_TCSOE (0x05 << 29) -#define SBC_IDE_PIO2_TOECS (0x01 << 26) -#define SBC_IDE_PIO2_TWCS (0x01 << 28) -#define SBC_IDE_PIO2_TCSH (0x07 << 24) -#define SBC_IDE_PIO2_TCSOFF (0x07 << 20) -#define SBC_IDE_PIO2_TWP (0x1F << 14) -#define SBC_IDE_PIO2_TCSW (0x05 << 10) -#define SBC_IDE_PIO2_TPM (0x00 << 6) -#define SBC_IDE_PIO2_TA (0x22 << 0) -/* Timing parameters PIO mode 3 */ -#define SBC_IDE_PIO3_TCSOE (0x05 << 29) -#define SBC_IDE_PIO3_TOECS (0x01 << 26) -#define SBC_IDE_PIO3_TWCS (0x01 << 28) -#define SBC_IDE_PIO3_TCSH (0x0D << 24) -#define SBC_IDE_PIO3_TCSOFF (0x0D << 20) -#define SBC_IDE_PIO3_TWP (0x15 << 14) -#define SBC_IDE_PIO3_TCSW (0x05 << 10) -#define SBC_IDE_PIO3_TPM (0x00 << 6) -#define SBC_IDE_PIO3_TA (0x1A << 0) -/* Timing parameters PIO mode 4 */ -#define SBC_IDE_PIO4_TCSOE (0x04 << 29) -#define SBC_IDE_PIO4_TOECS (0x01 << 26) -#define SBC_IDE_PIO4_TWCS (0x01 << 28) -#define SBC_IDE_PIO4_TCSH (0x04 << 24) -#define SBC_IDE_PIO4_TCSOFF (0x04 << 20) -#define SBC_IDE_PIO4_TWP (0x0D << 14) -#define SBC_IDE_PIO4_TCSW (0x03 << 10) -#define SBC_IDE_PIO4_TPM (0x00 << 6) -#define SBC_IDE_PIO4_TA (0x12 << 0) -/* Timing parameters MDMA mode 0 */ -#define SBC_IDE_MDMA0_TCSOE (0x03 << 29) -#define SBC_IDE_MDMA0_TOECS (0x01 << 26) -#define SBC_IDE_MDMA0_TWCS (0x01 << 28) -#define SBC_IDE_MDMA0_TCSH (0x07 << 24) -#define SBC_IDE_MDMA0_TCSOFF (0x07 << 20) -#define SBC_IDE_MDMA0_TWP (0x0C << 14) -#define SBC_IDE_MDMA0_TCSW (0x03 << 10) -#define SBC_IDE_MDMA0_TPM (0x00 << 6) -#define SBC_IDE_MDMA0_TA (0x0F << 0) -/* Timing parameters MDMA mode 1 */ -#define SBC_IDE_MDMA1_TCSOE (0x05 << 29) -#define SBC_IDE_MDMA1_TOECS (0x01 << 26) -#define SBC_IDE_MDMA1_TWCS (0x01 << 28) -#define SBC_IDE_MDMA1_TCSH (0x05 << 24) -#define SBC_IDE_MDMA1_TCSOFF (0x05 << 20) -#define SBC_IDE_MDMA1_TWP (0x0F << 14) -#define SBC_IDE_MDMA1_TCSW (0x05 << 10) -#define SBC_IDE_MDMA1_TPM (0x00 << 6) -#define SBC_IDE_MDMA1_TA (0x15 << 0) -/* Timing parameters MDMA mode 2 */ -#define SBC_IDE_MDMA2_TCSOE (0x04 << 29) -#define SBC_IDE_MDMA2_TOECS (0x01 << 26) -#define SBC_IDE_MDMA2_TWCS (0x01 << 28) -#define SBC_IDE_MDMA2_TCSH (0x04 << 24) -#define SBC_IDE_MDMA2_TCSOFF (0x04 << 20) -#define SBC_IDE_MDMA2_TWP (0x0D << 14) -#define SBC_IDE_MDMA2_TCSW (0x04 << 10) -#define SBC_IDE_MDMA2_TPM (0x00 << 6) -#define SBC_IDE_MDMA2_TA (0x12 << 0) - -#define SBC_IDE_TIMING(mode) \ - (SBC_IDE_##mode##_TWCS | \ - SBC_IDE_##mode##_TCSH | \ - SBC_IDE_##mode##_TCSOFF | \ - SBC_IDE_##mode##_TWP | \ - SBC_IDE_##mode##_TCSW | \ - SBC_IDE_##mode##_TPM | \ - SBC_IDE_##mode##_TA) diff --git a/arch/mips/include/asm/mach-emma2rh/irq.h b/arch/mips/include/asm/mach-emma2rh/irq.h index 2f7155dade29..d32736736bb3 100644 --- a/arch/mips/include/asm/mach-emma2rh/irq.h +++ b/arch/mips/include/asm/mach-emma2rh/irq.h @@ -10,6 +10,6 @@ #define NR_IRQS 256 -#include_next <irq.h> +#include <asm/mach-generic/irq.h> #endif /* __ASM_MACH_EMMA2RH_IRQ_H */ diff --git a/arch/mips/include/asm/mach-ip27/irq.h b/arch/mips/include/asm/mach-ip27/irq.h index fd91c58aaf7d..f45d7999fd73 100644 --- a/arch/mips/include/asm/mach-ip27/irq.h +++ b/arch/mips/include/asm/mach-ip27/irq.h @@ -12,7 +12,7 @@ #define NR_IRQS 256 -#include_next <irq.h> +#include <asm/mach-generic/irq.h> #define IP27_HUB_PEND0_IRQ (MIPS_CPU_IRQ_BASE + 2) #define IP27_HUB_PEND1_IRQ (MIPS_CPU_IRQ_BASE + 3) diff --git a/arch/mips/include/asm/mach-ip30/irq.h b/arch/mips/include/asm/mach-ip30/irq.h index e5c3dd965266..27ba899c95be 100644 --- a/arch/mips/include/asm/mach-ip30/irq.h +++ b/arch/mips/include/asm/mach-ip30/irq.h @@ -76,7 +76,7 @@ extern void __init ip30_install_ipi(void); */ #define IP30_POWER_IRQ HEART_L2_INT_POWER_BTN -#include_next <irq.h> +#include <asm/mach-generic/irq.h> #define IP30_HEART_L0_IRQ (MIPS_CPU_IRQ_BASE + 2) #define IP30_HEART_L1_IRQ (MIPS_CPU_IRQ_BASE + 3) diff --git a/arch/mips/include/asm/mach-lantiq/falcon/irq.h b/arch/mips/include/asm/mach-lantiq/falcon/irq.h index 91d2bc03c9fa..c14312fb0574 100644 --- a/arch/mips/include/asm/mach-lantiq/falcon/irq.h +++ b/arch/mips/include/asm/mach-lantiq/falcon/irq.h @@ -11,6 +11,6 @@ #define NR_IRQS 328 -#include_next <irq.h> +#include <asm/mach-generic/irq.h> #endif diff --git a/arch/mips/include/asm/mach-lantiq/xway/irq.h b/arch/mips/include/asm/mach-lantiq/xway/irq.h index 76ebbf6c50ef..2980e7771f83 100644 --- a/arch/mips/include/asm/mach-lantiq/xway/irq.h +++ b/arch/mips/include/asm/mach-lantiq/xway/irq.h @@ -11,6 +11,6 @@ #define NR_IRQS 256 -#include_next <irq.h> +#include <asm/mach-generic/irq.h> #endif diff --git a/arch/mips/include/asm/mach-lasat/irq.h b/arch/mips/include/asm/mach-lasat/irq.h index d79cbe075084..e8994921779e 100644 --- a/arch/mips/include/asm/mach-lasat/irq.h +++ b/arch/mips/include/asm/mach-lasat/irq.h @@ -9,6 +9,6 @@ #define NR_IRQS 24 -#include_next <irq.h> +#include <asm/mach-generic/irq.h> #endif /* _ASM_MACH_LASAT_IRQ_H */ diff --git a/arch/mips/include/asm/mach-loongson64/boot_param.h b/arch/mips/include/asm/mach-loongson64/boot_param.h index 8c286bedff3e..2ed483e32d8c 100644 --- a/arch/mips/include/asm/mach-loongson64/boot_param.h +++ b/arch/mips/include/asm/mach-loongson64/boot_param.h @@ -2,6 +2,8 @@ #ifndef __ASM_MACH_LOONGSON64_BOOT_PARAM_H_ #define __ASM_MACH_LOONGSON64_BOOT_PARAM_H_ +#include <linux/types.h> + #define SYSTEM_RAM_LOW 1 #define SYSTEM_RAM_HIGH 2 #define SYSTEM_RAM_RESERVED 3 diff --git a/arch/mips/include/asm/mach-loongson64/builtin_dtbs.h b/arch/mips/include/asm/mach-loongson64/builtin_dtbs.h new file mode 100644 index 000000000000..853c6d80887b --- /dev/null +++ b/arch/mips/include/asm/mach-loongson64/builtin_dtbs.h @@ -0,0 +1,13 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +/* + * Copyright (C) 2019 Jiaxun Yang <jiaxun.yang@flygoat.com> + * + * Built-in Generic dtbs for MACH_LOONGSON64 + */ + +#ifndef __ASM_MACH_LOONGSON64_BUILTIN_DTBS_H_ +#define __ASM_MACH_LOONGSON64_BUILTIN_DTBS_H_ + +extern u32 __dtb_loongson3_4core_rs780e_begin[]; +extern u32 __dtb_loongson3_8core_rs780e_begin[]; +#endif diff --git a/arch/mips/include/asm/mach-loongson64/irq.h b/arch/mips/include/asm/mach-loongson64/irq.h index 73a89913dc38..d41dc4a76e6d 100644 --- a/arch/mips/include/asm/mach-loongson64/irq.h +++ b/arch/mips/include/asm/mach-loongson64/irq.h @@ -7,34 +7,6 @@ /* cpu core interrupt numbers */ #define MIPS_CPU_IRQ_BASE 56 -#define LOONGSON_UART_IRQ (MIPS_CPU_IRQ_BASE + 2) /* UART */ -#define LOONGSON_BRIDGE_IRQ (MIPS_CPU_IRQ_BASE + 3) /* CASCADE */ -#define LOONGSON_TIMER_IRQ (MIPS_CPU_IRQ_BASE + 7) /* CPU Timer */ +#include <asm/mach-generic/irq.h> -#define LOONGSON_HT1_CFG_BASE loongson_sysconf.ht_control_base -#define LOONGSON_HT1_INT_VECTOR_BASE (LOONGSON_HT1_CFG_BASE + 0x80) -#define LOONGSON_HT1_INT_EN_BASE (LOONGSON_HT1_CFG_BASE + 0xa0) -#define LOONGSON_HT1_INT_VECTOR(n) \ - LOONGSON3_REG32(LOONGSON_HT1_INT_VECTOR_BASE, 4 * (n)) -#define LOONGSON_HT1_INTN_EN(n) \ - LOONGSON3_REG32(LOONGSON_HT1_INT_EN_BASE, 4 * (n)) - -#define LOONGSON_INT_ROUTER_OFFSET 0x1400 -#define LOONGSON_INT_ROUTER_INTEN \ - LOONGSON3_REG32(LOONGSON3_REG_BASE, LOONGSON_INT_ROUTER_OFFSET + 0x24) -#define LOONGSON_INT_ROUTER_INTENSET \ - LOONGSON3_REG32(LOONGSON3_REG_BASE, LOONGSON_INT_ROUTER_OFFSET + 0x28) -#define LOONGSON_INT_ROUTER_INTENCLR \ - LOONGSON3_REG32(LOONGSON3_REG_BASE, LOONGSON_INT_ROUTER_OFFSET + 0x2c) -#define LOONGSON_INT_ROUTER_ENTRY(n) \ - LOONGSON3_REG8(LOONGSON3_REG_BASE, LOONGSON_INT_ROUTER_OFFSET + n) -#define LOONGSON_INT_ROUTER_LPC LOONGSON_INT_ROUTER_ENTRY(0x0a) -#define LOONGSON_INT_ROUTER_HT1(n) LOONGSON_INT_ROUTER_ENTRY(n + 0x18) - -#define LOONGSON_INT_COREx_INTy(x, y) (1<<(x) | 1<<(y+4)) /* route to int y of core x */ - -extern void fixup_irqs(void); -extern void loongson3_ipi_interrupt(struct pt_regs *regs); - -#include_next <irq.h> #endif /* __ASM_MACH_LOONGSON64_IRQ_H_ */ diff --git a/arch/mips/include/asm/mach-loongson64/loongson.h b/arch/mips/include/asm/mach-loongson64/loongson.h index a8fce112a9b0..fde1b75c45ea 100644 --- a/arch/mips/include/asm/mach-loongson64/loongson.h +++ b/arch/mips/include/asm/mach-loongson64/loongson.h @@ -25,6 +25,7 @@ extern const struct plat_smp_ops loongson3_smp_ops; /* loongson-specific command line, env and memory initialization */ extern void __init prom_init_memory(void); extern void __init prom_init_env(void); +extern void *loongson_fdt_blob; /* irq operation functions */ extern void mach_irq_dispatch(unsigned int pending); diff --git a/arch/mips/include/asm/mach-malta/irq.h b/arch/mips/include/asm/mach-malta/irq.h index af9eeea250ed..e1bd4298b606 100644 --- a/arch/mips/include/asm/mach-malta/irq.h +++ b/arch/mips/include/asm/mach-malta/irq.h @@ -5,6 +5,6 @@ #define NR_IRQS 256 -#include_next <irq.h> +#include <asm/mach-generic/irq.h> #endif /* __ASM_MACH_MIPS_IRQ_H */ diff --git a/arch/mips/include/asm/mach-pic32/irq.h b/arch/mips/include/asm/mach-pic32/irq.h index d2396941ed2a..ddaf999bc650 100644 --- a/arch/mips/include/asm/mach-pic32/irq.h +++ b/arch/mips/include/asm/mach-pic32/irq.h @@ -9,6 +9,6 @@ #define NR_IRQS 256 #define MIPS_CPU_IRQ_BASE 0 -#include_next <irq.h> +#include <asm/mach-generic/irq.h> #endif /* __ASM_MACH_PIC32_IRQ_H */ diff --git a/arch/mips/include/asm/mach-pistachio/irq.h b/arch/mips/include/asm/mach-pistachio/irq.h index 93bc380f9536..74ac016503ad 100644 --- a/arch/mips/include/asm/mach-pistachio/irq.h +++ b/arch/mips/include/asm/mach-pistachio/irq.h @@ -10,6 +10,6 @@ #define NR_IRQS 256 -#include_next <irq.h> +#include <asm/mach-generic/irq.h> #endif /* __ASM_MACH_PISTACHIO_IRQ_H */ diff --git a/arch/mips/include/asm/mach-ralink/irq.h b/arch/mips/include/asm/mach-ralink/irq.h index 86473e3999aa..2262243d19c9 100644 --- a/arch/mips/include/asm/mach-ralink/irq.h +++ b/arch/mips/include/asm/mach-ralink/irq.h @@ -5,6 +5,6 @@ #define GIC_NUM_INTRS 64 #define NR_IRQS 256 -#include_next <irq.h> +#include <asm/mach-generic/irq.h> #endif diff --git a/arch/mips/include/asm/mach-rm/mc146818rtc.h b/arch/mips/include/asm/mach-rm/mc146818rtc.h index 145bce096fe9..a074f4f84f75 100644 --- a/arch/mips/include/asm/mach-rm/mc146818rtc.h +++ b/arch/mips/include/asm/mach-rm/mc146818rtc.h @@ -16,6 +16,6 @@ #define mc146818_decode_year(year) ((year) + 1980) #endif -#include_next <mc146818rtc.h> +#include <asm/mach-generic/mc146818rtc.h> #endif /* __ASM_MACH_RM_MC146818RTC_H */ diff --git a/arch/mips/include/asm/mach-vr41xx/irq.h b/arch/mips/include/asm/mach-vr41xx/irq.h index 3d63afae37a8..4281b2b9344d 100644 --- a/arch/mips/include/asm/mach-vr41xx/irq.h +++ b/arch/mips/include/asm/mach-vr41xx/irq.h @@ -4,6 +4,6 @@ #include <asm/vr41xx/irq.h> /* for MIPS_CPU_IRQ_BASE */ -#include_next <irq.h> +#include <asm/mach-generic/irq.h> #endif /* __ASM_MACH_VR41XX_IRQ_H */ diff --git a/arch/mips/include/asm/mach-xilfpga/irq.h b/arch/mips/include/asm/mach-xilfpga/irq.h index b8e93fa8adcf..15ad29ec1dee 100644 --- a/arch/mips/include/asm/mach-xilfpga/irq.h +++ b/arch/mips/include/asm/mach-xilfpga/irq.h @@ -9,6 +9,6 @@ #define NR_IRQS 32 -#include_next <irq.h> +#include <asm/mach-generic/irq.h> #endif /* __MIPS_ASM_MACH_XILFPGA_IRQ_H__ */ diff --git a/arch/mips/include/asm/octeon/cvmx-helper-board.h b/arch/mips/include/asm/octeon/cvmx-helper-board.h index d7fdcf0a0088..ce52aafe7a8d 100644 --- a/arch/mips/include/asm/octeon/cvmx-helper-board.h +++ b/arch/mips/include/asm/octeon/cvmx-helper-board.h @@ -93,7 +93,7 @@ extern int cvmx_helper_board_get_mii_address(int ipd_port); * Returns The ports link status. If the link isn't fully resolved, this must * return zero. */ -extern cvmx_helper_link_info_t __cvmx_helper_board_link_get(int ipd_port); +extern union cvmx_helper_link_info __cvmx_helper_board_link_get(int ipd_port); /** * This function is called by cvmx_helper_interface_probe() after it diff --git a/arch/mips/include/asm/octeon/cvmx-helper-rgmii.h b/arch/mips/include/asm/octeon/cvmx-helper-rgmii.h index ac42b5066bd9..3e79a7f898b6 100644 --- a/arch/mips/include/asm/octeon/cvmx-helper-rgmii.h +++ b/arch/mips/include/asm/octeon/cvmx-helper-rgmii.h @@ -74,7 +74,7 @@ extern int __cvmx_helper_rgmii_enable(int interface); * * Returns Link state */ -extern cvmx_helper_link_info_t __cvmx_helper_rgmii_link_get(int ipd_port); +extern union cvmx_helper_link_info __cvmx_helper_rgmii_link_get(int ipd_port); /** * Configure an IPD/PKO port for the specified link state. This @@ -88,6 +88,6 @@ extern cvmx_helper_link_info_t __cvmx_helper_rgmii_link_get(int ipd_port); * Returns Zero on success, negative on failure */ extern int __cvmx_helper_rgmii_link_set(int ipd_port, - cvmx_helper_link_info_t link_info); + union cvmx_helper_link_info link_info); #endif diff --git a/arch/mips/include/asm/octeon/cvmx-helper-sgmii.h b/arch/mips/include/asm/octeon/cvmx-helper-sgmii.h index 3a54dea58c0a..8aac90f1871f 100644 --- a/arch/mips/include/asm/octeon/cvmx-helper-sgmii.h +++ b/arch/mips/include/asm/octeon/cvmx-helper-sgmii.h @@ -68,7 +68,7 @@ extern int __cvmx_helper_sgmii_enable(int interface); * * Returns Link state */ -extern cvmx_helper_link_info_t __cvmx_helper_sgmii_link_get(int ipd_port); +extern union cvmx_helper_link_info __cvmx_helper_sgmii_link_get(int ipd_port); /** * Configure an IPD/PKO port for the specified link state. This @@ -82,6 +82,6 @@ extern cvmx_helper_link_info_t __cvmx_helper_sgmii_link_get(int ipd_port); * Returns Zero on success, negative on failure */ extern int __cvmx_helper_sgmii_link_set(int ipd_port, - cvmx_helper_link_info_t link_info); + union cvmx_helper_link_info link_info); #endif diff --git a/arch/mips/include/asm/octeon/cvmx-helper-spi.h b/arch/mips/include/asm/octeon/cvmx-helper-spi.h index d5adf8592773..bc8cab9367b8 100644 --- a/arch/mips/include/asm/octeon/cvmx-helper-spi.h +++ b/arch/mips/include/asm/octeon/cvmx-helper-spi.h @@ -65,7 +65,7 @@ extern int __cvmx_helper_spi_enable(int interface); * * Returns Link state */ -extern cvmx_helper_link_info_t __cvmx_helper_spi_link_get(int ipd_port); +extern union cvmx_helper_link_info __cvmx_helper_spi_link_get(int ipd_port); /** * Configure an IPD/PKO port for the specified link state. This @@ -79,6 +79,6 @@ extern cvmx_helper_link_info_t __cvmx_helper_spi_link_get(int ipd_port); * Returns Zero on success, negative on failure */ extern int __cvmx_helper_spi_link_set(int ipd_port, - cvmx_helper_link_info_t link_info); + union cvmx_helper_link_info link_info); #endif diff --git a/arch/mips/include/asm/octeon/cvmx-helper-util.h b/arch/mips/include/asm/octeon/cvmx-helper-util.h index e9a97e7ee604..97b27a07cfb0 100644 --- a/arch/mips/include/asm/octeon/cvmx-helper-util.h +++ b/arch/mips/include/asm/octeon/cvmx-helper-util.h @@ -123,7 +123,7 @@ static inline int cvmx_helper_get_last_ipd_port(int interface) * * @work: Work queue entry with packet to free */ -static inline void cvmx_helper_free_packet_data(cvmx_wqe_t *work) +static inline void cvmx_helper_free_packet_data(struct cvmx_wqe *work) { uint64_t number_buffers; union cvmx_buf_ptr buffer_ptr; diff --git a/arch/mips/include/asm/octeon/cvmx-helper-xaui.h b/arch/mips/include/asm/octeon/cvmx-helper-xaui.h index 51f45b495680..c18da2eba78e 100644 --- a/arch/mips/include/asm/octeon/cvmx-helper-xaui.h +++ b/arch/mips/include/asm/octeon/cvmx-helper-xaui.h @@ -68,7 +68,7 @@ extern int __cvmx_helper_xaui_enable(int interface); * * Returns Link state */ -extern cvmx_helper_link_info_t __cvmx_helper_xaui_link_get(int ipd_port); +extern union cvmx_helper_link_info __cvmx_helper_xaui_link_get(int ipd_port); /** * Configure an IPD/PKO port for the specified link state. This @@ -82,6 +82,6 @@ extern cvmx_helper_link_info_t __cvmx_helper_xaui_link_get(int ipd_port); * Returns Zero on success, negative on failure */ extern int __cvmx_helper_xaui_link_set(int ipd_port, - cvmx_helper_link_info_t link_info); + union cvmx_helper_link_info link_info); #endif diff --git a/arch/mips/include/asm/octeon/cvmx-helper.h b/arch/mips/include/asm/octeon/cvmx-helper.h index ba0e76f578e0..c6c99e28eefb 100644 --- a/arch/mips/include/asm/octeon/cvmx-helper.h +++ b/arch/mips/include/asm/octeon/cvmx-helper.h @@ -51,7 +51,7 @@ typedef enum { CVMX_HELPER_INTERFACE_MODE_LOOP, } cvmx_helper_interface_mode_t; -typedef union { +union cvmx_helper_link_info { uint64_t u64; struct { uint64_t reserved_20_63:44; @@ -59,7 +59,7 @@ typedef union { uint64_t full_duplex:1; /**< 1 if the link is full duplex */ uint64_t speed:18; /**< Speed of the link in Mbps */ } s; -} cvmx_helper_link_info_t; +}; #include <asm/octeon/cvmx-helper-errata.h> #include <asm/octeon/cvmx-helper-loop.h> @@ -145,7 +145,7 @@ extern cvmx_helper_interface_mode_t cvmx_helper_interface_get_mode(int * * Returns Link state */ -extern cvmx_helper_link_info_t cvmx_helper_link_get(int ipd_port); +extern union cvmx_helper_link_info cvmx_helper_link_get(int ipd_port); /** * Configure an IPD/PKO port for the specified link state. This @@ -159,7 +159,7 @@ extern cvmx_helper_link_info_t cvmx_helper_link_get(int ipd_port); * Returns Zero on success, negative on failure */ extern int cvmx_helper_link_set(int ipd_port, - cvmx_helper_link_info_t link_info); + union cvmx_helper_link_info link_info); /** * This function probes an interface to determine the actual diff --git a/arch/mips/include/asm/octeon/cvmx-pko.h b/arch/mips/include/asm/octeon/cvmx-pko.h index 20eb9c46a75a..5b0b982a36f7 100644 --- a/arch/mips/include/asm/octeon/cvmx-pko.h +++ b/arch/mips/include/asm/octeon/cvmx-pko.h @@ -169,7 +169,7 @@ typedef union { /** * Structure of the first packet output command word. */ -typedef union { +union cvmx_pko_command_word0 { uint64_t u64; struct { #ifdef __BIG_ENDIAN_BITFIELD @@ -261,7 +261,7 @@ typedef union { uint64_t size1:2; #endif } s; -} cvmx_pko_command_word0_t; +}; /* CSR typedefs have been moved to cvmx-csr-*.h */ @@ -394,7 +394,7 @@ static inline void cvmx_pko_send_packet_prepare(uint64_t port, uint64_t queue, CVMX_TAG_SW_BITS_INTERNAL << CVMX_TAG_SW_SHIFT | CVMX_TAG_SUBGROUP_PKO << CVMX_TAG_SUBGROUP_SHIFT | (CVMX_TAG_SUBGROUP_MASK & queue); - cvmx_pow_tag_sw_full((cvmx_wqe_t *) cvmx_phys_to_ptr(0x80), tag, + cvmx_pow_tag_sw_full((struct cvmx_wqe *) cvmx_phys_to_ptr(0x80), tag, CVMX_POW_TAG_TYPE_ATOMIC, 0); } } @@ -419,7 +419,7 @@ static inline void cvmx_pko_send_packet_prepare(uint64_t port, uint64_t queue, static inline cvmx_pko_status_t cvmx_pko_send_packet_finish( uint64_t port, uint64_t queue, - cvmx_pko_command_word0_t pko_command, + union cvmx_pko_command_word0 pko_command, union cvmx_buf_ptr packet, cvmx_pko_lock_t use_locking) { @@ -462,7 +462,7 @@ static inline cvmx_pko_status_t cvmx_pko_send_packet_finish( static inline cvmx_pko_status_t cvmx_pko_send_packet_finish3( uint64_t port, uint64_t queue, - cvmx_pko_command_word0_t pko_command, + union cvmx_pko_command_word0 pko_command, union cvmx_buf_ptr packet, uint64_t addr, cvmx_pko_lock_t use_locking) diff --git a/arch/mips/include/asm/octeon/cvmx-pow.h b/arch/mips/include/asm/octeon/cvmx-pow.h index 410bb70e5aac..ba366f4f3c3d 100644 --- a/arch/mips/include/asm/octeon/cvmx-pow.h +++ b/arch/mips/include/asm/octeon/cvmx-pow.h @@ -1283,7 +1283,7 @@ static inline cvmx_pow_tag_req_t cvmx_pow_get_current_tag(void) * * Returns WQE pointer */ -static inline cvmx_wqe_t *cvmx_pow_get_current_wqp(void) +static inline struct cvmx_wqe *cvmx_pow_get_current_wqp(void) { cvmx_pow_load_addr_t load_addr; cvmx_pow_tag_load_resp_t load_resp; @@ -1296,7 +1296,7 @@ static inline cvmx_wqe_t *cvmx_pow_get_current_wqp(void) load_addr.sstatus.get_cur = 1; load_addr.sstatus.get_wqp = 1; load_resp.u64 = cvmx_read_csr(load_addr.u64); - return (cvmx_wqe_t *) cvmx_phys_to_ptr(load_resp.s_sstatus4.wqp); + return (struct cvmx_wqe *) cvmx_phys_to_ptr(load_resp.s_sstatus4.wqp); } #ifndef CVMX_MF_CHORD @@ -1348,7 +1348,7 @@ static inline void cvmx_pow_tag_sw_wait(void) * Returns Returns the WQE pointer from POW. Returns NULL if no work * was available. */ -static inline cvmx_wqe_t *cvmx_pow_work_request_sync_nocheck(cvmx_pow_wait_t +static inline struct cvmx_wqe *cvmx_pow_work_request_sync_nocheck(cvmx_pow_wait_t wait) { cvmx_pow_load_addr_t ptr; @@ -1368,7 +1368,7 @@ static inline cvmx_wqe_t *cvmx_pow_work_request_sync_nocheck(cvmx_pow_wait_t if (result.s_work.no_work) return NULL; else - return (cvmx_wqe_t *) cvmx_phys_to_ptr(result.s_work.addr); + return (struct cvmx_wqe *) cvmx_phys_to_ptr(result.s_work.addr); } /** @@ -1382,7 +1382,7 @@ static inline cvmx_wqe_t *cvmx_pow_work_request_sync_nocheck(cvmx_pow_wait_t * Returns Returns the WQE pointer from POW. Returns NULL if no work * was available. */ -static inline cvmx_wqe_t *cvmx_pow_work_request_sync(cvmx_pow_wait_t wait) +static inline struct cvmx_wqe *cvmx_pow_work_request_sync(cvmx_pow_wait_t wait) { if (CVMX_ENABLE_POW_CHECKS) __cvmx_pow_warn_if_pending_switch(__func__); @@ -1485,7 +1485,7 @@ static inline void cvmx_pow_work_request_async(int scr_addr, * Returns Returns the WQE from the scratch register, or NULL if no * work was available. */ -static inline cvmx_wqe_t *cvmx_pow_work_response_async(int scr_addr) +static inline struct cvmx_wqe *cvmx_pow_work_response_async(int scr_addr) { cvmx_pow_tag_load_resp_t result; @@ -1495,7 +1495,7 @@ static inline cvmx_wqe_t *cvmx_pow_work_response_async(int scr_addr) if (result.s_work.no_work) return NULL; else - return (cvmx_wqe_t *) cvmx_phys_to_ptr(result.s_work.addr); + return (struct cvmx_wqe *) cvmx_phys_to_ptr(result.s_work.addr); } /** @@ -1508,7 +1508,7 @@ static inline cvmx_wqe_t *cvmx_pow_work_response_async(int scr_addr) * Returns 0 if pointer is valid * 1 if invalid (no work was returned) */ -static inline uint64_t cvmx_pow_work_invalid(cvmx_wqe_t *wqe_ptr) +static inline uint64_t cvmx_pow_work_invalid(struct cvmx_wqe *wqe_ptr) { return wqe_ptr == NULL; } @@ -1638,7 +1638,7 @@ static inline void cvmx_pow_tag_sw(uint32_t tag, * @tag_type: type of tag * @group: group value for the work queue entry. */ -static inline void cvmx_pow_tag_sw_full_nocheck(cvmx_wqe_t *wqp, uint32_t tag, +static inline void cvmx_pow_tag_sw_full_nocheck(struct cvmx_wqe *wqp, uint32_t tag, enum cvmx_pow_tag_type tag_type, uint64_t group) { @@ -1712,7 +1712,7 @@ static inline void cvmx_pow_tag_sw_full_nocheck(cvmx_wqe_t *wqp, uint32_t tag, * @tag_type: type of tag * @group: group value for the work queue entry. */ -static inline void cvmx_pow_tag_sw_full(cvmx_wqe_t *wqp, uint32_t tag, +static inline void cvmx_pow_tag_sw_full(struct cvmx_wqe *wqp, uint32_t tag, enum cvmx_pow_tag_type tag_type, uint64_t group) { @@ -1803,7 +1803,7 @@ static inline void cvmx_pow_tag_sw_null(void) * @qos: Input queue to add to. * @grp: group value for the work queue entry. */ -static inline void cvmx_pow_work_submit(cvmx_wqe_t *wqp, uint32_t tag, +static inline void cvmx_pow_work_submit(struct cvmx_wqe *wqp, uint32_t tag, enum cvmx_pow_tag_type tag_type, uint64_t qos, uint64_t grp) { diff --git a/arch/mips/include/asm/octeon/cvmx-wqe.h b/arch/mips/include/asm/octeon/cvmx-wqe.h index 0d697aa786d4..9cec2299b81b 100644 --- a/arch/mips/include/asm/octeon/cvmx-wqe.h +++ b/arch/mips/include/asm/octeon/cvmx-wqe.h @@ -547,7 +547,7 @@ union cvmx_wqe_word1 { * * must be 8-byte aligned */ -typedef struct { +struct cvmx_wqe { /***************************************************************** * WORD 0 @@ -593,9 +593,9 @@ typedef struct { * */ -} CVMX_CACHE_LINE_ALIGNED cvmx_wqe_t; +} CVMX_CACHE_LINE_ALIGNED; -static inline int cvmx_wqe_get_port(cvmx_wqe_t *work) +static inline int cvmx_wqe_get_port(struct cvmx_wqe *work) { int port; @@ -607,7 +607,7 @@ static inline int cvmx_wqe_get_port(cvmx_wqe_t *work) return port; } -static inline void cvmx_wqe_set_port(cvmx_wqe_t *work, int port) +static inline void cvmx_wqe_set_port(struct cvmx_wqe *work, int port) { if (octeon_has_feature(OCTEON_FEATURE_CN68XX_WQE)) work->word2.s_cn68xx.port = port; @@ -615,7 +615,7 @@ static inline void cvmx_wqe_set_port(cvmx_wqe_t *work, int port) work->word1.cn38xx.ipprt = port; } -static inline int cvmx_wqe_get_grp(cvmx_wqe_t *work) +static inline int cvmx_wqe_get_grp(struct cvmx_wqe *work) { int grp; @@ -627,7 +627,7 @@ static inline int cvmx_wqe_get_grp(cvmx_wqe_t *work) return grp; } -static inline void cvmx_wqe_set_grp(cvmx_wqe_t *work, int grp) +static inline void cvmx_wqe_set_grp(struct cvmx_wqe *work, int grp) { if (octeon_has_feature(OCTEON_FEATURE_CN68XX_WQE)) work->word1.cn68xx.grp = grp; @@ -635,7 +635,7 @@ static inline void cvmx_wqe_set_grp(cvmx_wqe_t *work, int grp) work->word1.cn38xx.grp = grp; } -static inline int cvmx_wqe_get_qos(cvmx_wqe_t *work) +static inline int cvmx_wqe_get_qos(struct cvmx_wqe *work) { int qos; @@ -647,7 +647,7 @@ static inline int cvmx_wqe_get_qos(cvmx_wqe_t *work) return qos; } -static inline void cvmx_wqe_set_qos(cvmx_wqe_t *work, int qos) +static inline void cvmx_wqe_set_qos(struct cvmx_wqe *work, int qos) { if (octeon_has_feature(OCTEON_FEATURE_CN68XX_WQE)) work->word1.cn68xx.qos = qos; diff --git a/arch/mips/include/asm/processor.h b/arch/mips/include/asm/processor.h index 7619ad319400..856e12f6063d 100644 --- a/arch/mips/include/asm/processor.h +++ b/arch/mips/include/asm/processor.h @@ -22,6 +22,7 @@ #include <asm/dsemul.h> #include <asm/mipsregs.h> #include <asm/prefetch.h> +#include <asm/vdso/processor.h> /* * System setup and hardware flags.. @@ -253,13 +254,13 @@ struct thread_struct { #ifdef CONFIG_MIPS_FP_SUPPORT /* Saved fpu/fpu emulator stuff. */ struct mips_fpu_struct fpu FPU_ALIGN; -#endif /* Assigned branch delay slot 'emulation' frame */ atomic_t bd_emu_frame; /* PC of the branch from a branch delay slot 'emulation' */ unsigned long bd_emu_branch_pc; /* PC to continue from following a branch delay slot 'emulation' */ unsigned long bd_emu_cont_pc; +#endif #ifdef CONFIG_MIPS_MT_FPAFF /* Emulated instruction count */ unsigned long emulated_fp; @@ -302,7 +303,11 @@ struct thread_struct { .fpr = {{{0,},},}, \ .fcr31 = 0, \ .msacsr = 0, \ - }, + }, \ + /* Delay slot emulation */ \ + .bd_emu_frame = ATOMIC_INIT(BD_EMUFRAME_NONE), \ + .bd_emu_branch_pc = 0, \ + .bd_emu_cont_pc = 0, #else # define FPU_INIT #endif @@ -334,10 +339,6 @@ struct thread_struct { * FPU affinity state (null if not FPAFF) \ */ \ FPAFF_INIT \ - /* Delay slot emulation */ \ - .bd_emu_frame = ATOMIC_INIT(BD_EMUFRAME_NONE), \ - .bd_emu_branch_pc = 0, \ - .bd_emu_cont_pc = 0, \ /* \ * Saved DSP stuff \ */ \ @@ -385,21 +386,6 @@ unsigned long get_wchan(struct task_struct *p); #define KSTK_ESP(tsk) (task_pt_regs(tsk)->regs[29]) #define KSTK_STATUS(tsk) (task_pt_regs(tsk)->cp0_status) -#ifdef CONFIG_CPU_LOONGSON64 -/* - * Loongson-3's SFB (Store-Fill-Buffer) may buffer writes indefinitely when a - * tight read loop is executed, because reads take priority over writes & the - * hardware (incorrectly) doesn't ensure that writes will eventually occur. - * - * Since spin loops of any kind should have a cpu_relax() in them, force an SFB - * flush from cpu_relax() such that any pending writes will become visible as - * expected. - */ -#define cpu_relax() smp_mb() -#else -#define cpu_relax() barrier() -#endif - /* * Return_address is a replacement for __builtin_return_address(count) * which on certain architectures cannot reasonably be implemented in GCC diff --git a/arch/mips/include/asm/sni.h b/arch/mips/include/asm/sni.h index a107201a2e1e..7dfa297ce597 100644 --- a/arch/mips/include/asm/sni.h +++ b/arch/mips/include/asm/sni.h @@ -11,6 +11,8 @@ #ifndef __ASM_SNI_H #define __ASM_SNI_H +#include <linux/irqreturn.h> + extern unsigned int sni_brd_type; #define SNI_BRD_10 2 @@ -239,6 +241,6 @@ static inline int sni_eisa_root_init(void) /* common irq stuff */ extern void (*sni_hwint)(void); -extern struct irqaction sni_isa_irq; +extern irqreturn_t sni_isa_irq_handler(int dummy, void *p); #endif /* __ASM_SNI_H */ diff --git a/arch/mips/include/asm/vdso/clocksource.h b/arch/mips/include/asm/vdso/clocksource.h new file mode 100644 index 000000000000..510e1671d898 --- /dev/null +++ b/arch/mips/include/asm/vdso/clocksource.h @@ -0,0 +1,9 @@ +/* SPDX-License-Identifier: GPL-2.0-or-later */ +#ifndef __ASM_VDSOCLOCKSOURCE_H +#define __ASM_VDSOCLOCKSOURCE_H + +#define VDSO_ARCH_CLOCKMODES \ + VDSO_CLOCKMODE_R4K, \ + VDSO_CLOCKMODE_GIC + +#endif /* __ASM_VDSOCLOCKSOURCE_H */ diff --git a/arch/mips/include/asm/vdso/gettimeofday.h b/arch/mips/include/asm/vdso/gettimeofday.h index a58687e26c5d..c63ddcaea54c 100644 --- a/arch/mips/include/asm/vdso/gettimeofday.h +++ b/arch/mips/include/asm/vdso/gettimeofday.h @@ -13,19 +13,13 @@ #ifndef __ASSEMBLY__ -#include <linux/compiler.h> -#include <linux/time.h> - #include <asm/vdso/vdso.h> #include <asm/clocksource.h> -#include <asm/io.h> #include <asm/unistd.h> #include <asm/vdso.h> #define VDSO_HAS_CLOCK_GETRES 1 -#define __VDSO_USE_SYSCALL ULLONG_MAX - static __always_inline long gettimeofday_fallback( struct __kernel_old_timeval *_tv, struct timezone *_tz) @@ -175,29 +169,28 @@ static __always_inline u64 read_gic_count(const struct vdso_data *data) static __always_inline u64 __arch_get_hw_counter(s32 clock_mode) { -#ifdef CONFIG_CLKSRC_MIPS_GIC - const struct vdso_data *data = get_vdso_data(); -#endif - u64 cycle_now; - - switch (clock_mode) { #ifdef CONFIG_CSRC_R4K - case VDSO_CLOCK_R4K: - cycle_now = read_r4k_count(); - break; + if (clock_mode == VDSO_CLOCKMODE_R4K) + return read_r4k_count(); #endif #ifdef CONFIG_CLKSRC_MIPS_GIC - case VDSO_CLOCK_GIC: - cycle_now = read_gic_count(data); - break; + if (clock_mode == VDSO_CLOCKMODE_GIC) + return read_gic_count(get_vdso_data()); #endif - default: - cycle_now = __VDSO_USE_SYSCALL; - break; - } + /* + * Core checks mode already. So this raced against a concurrent + * update. Return something. Core will do another round see the + * change and fallback to syscall. + */ + return 0; +} - return cycle_now; +static inline bool mips_vdso_hres_capable(void) +{ + return IS_ENABLED(CONFIG_CSRC_R4K) || + IS_ENABLED(CONFIG_CLKSRC_MIPS_GIC); } +#define __arch_vdso_hres_capable mips_vdso_hres_capable static __always_inline const struct vdso_data *__arch_get_vdso_data(void) { diff --git a/arch/mips/include/asm/vdso/processor.h b/arch/mips/include/asm/vdso/processor.h new file mode 100644 index 000000000000..511c95d735e6 --- /dev/null +++ b/arch/mips/include/asm/vdso/processor.h @@ -0,0 +1,27 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (C) 2020 ARM Ltd. + */ +#ifndef __ASM_VDSO_PROCESSOR_H +#define __ASM_VDSO_PROCESSOR_H + +#ifndef __ASSEMBLY__ + +#ifdef CONFIG_CPU_LOONGSON64 +/* + * Loongson-3's SFB (Store-Fill-Buffer) may buffer writes indefinitely when a + * tight read loop is executed, because reads take priority over writes & the + * hardware (incorrectly) doesn't ensure that writes will eventually occur. + * + * Since spin loops of any kind should have a cpu_relax() in them, force an SFB + * flush from cpu_relax() such that any pending writes will become visible as + * expected. + */ +#define cpu_relax() smp_mb() +#else +#define cpu_relax() barrier() +#endif + +#endif /* __ASSEMBLY__ */ + +#endif /* __ASM_VDSO_PROCESSOR_H */ diff --git a/arch/mips/include/asm/vdso/vsyscall.h b/arch/mips/include/asm/vdso/vsyscall.h index 00d41b94ba31..47168aaf1eff 100644 --- a/arch/mips/include/asm/vdso/vsyscall.h +++ b/arch/mips/include/asm/vdso/vsyscall.h @@ -19,15 +19,6 @@ struct vdso_data *__mips_get_k_vdso_data(void) } #define __arch_get_k_vdso_data __mips_get_k_vdso_data -static __always_inline -int __mips_get_clock_mode(struct timekeeper *tk) -{ - u32 clock_mode = tk->tkr_mono.clock->archdata.vdso_clock_mode; - - return clock_mode; -} -#define __arch_get_clock_mode __mips_get_clock_mode - /* The asm-generic header needs to be included after the definitions above */ #include <asm-generic/vdso/vsyscall.h> diff --git a/arch/mips/jazz/irq.c b/arch/mips/jazz/irq.c index 5d6828b2a750..04b9c4068493 100644 --- a/arch/mips/jazz/irq.c +++ b/arch/mips/jazz/irq.c @@ -125,24 +125,18 @@ static irqreturn_t r4030_timer_interrupt(int irq, void *dev_id) return IRQ_HANDLED; } -static struct irqaction r4030_timer_irqaction = { - .handler = r4030_timer_interrupt, - .flags = IRQF_TIMER, - .name = "R4030 timer", -}; - void __init plat_time_init(void) { struct clock_event_device *cd = &r4030_clockevent; - struct irqaction *action = &r4030_timer_irqaction; unsigned int cpu = smp_processor_id(); BUG_ON(HZ != 100); cd->cpumask = cpumask_of(cpu); clockevents_register_device(cd); - action->dev_id = cd; - setup_irq(JAZZ_TIMER_IRQ, action); + if (request_irq(JAZZ_TIMER_IRQ, r4030_timer_interrupt, IRQF_TIMER, + "R4030 timer", cd)) + pr_err("Failed to register R4030 timer interrupt\n"); /* * Set clock to 100Hz. diff --git a/arch/mips/jz4740/time.c b/arch/mips/jz4740/time.c index 5476899f0882..605a84a250bf 100644 --- a/arch/mips/jz4740/time.c +++ b/arch/mips/jz4740/time.c @@ -4,8 +4,8 @@ * JZ4740 platform time support */ -#include <linux/clk-provider.h> #include <linux/clocksource.h> +#include <linux/of_clk.h> #include <asm/mach-jz4740/timer.h> diff --git a/arch/mips/kernel/cevt-bcm1480.c b/arch/mips/kernel/cevt-bcm1480.c index b3e8c11a8fa5..d39a2963b451 100644 --- a/arch/mips/kernel/cevt-bcm1480.c +++ b/arch/mips/kernel/cevt-bcm1480.c @@ -91,16 +91,15 @@ static irqreturn_t sibyte_counter_handler(int irq, void *dev_id) } static DEFINE_PER_CPU(struct clock_event_device, sibyte_hpt_clockevent); -static DEFINE_PER_CPU(struct irqaction, sibyte_hpt_irqaction); static DEFINE_PER_CPU(char [18], sibyte_hpt_name); void sb1480_clockevent_init(void) { unsigned int cpu = smp_processor_id(); unsigned int irq = K_BCM1480_INT_TIMER_0 + cpu; - struct irqaction *action = &per_cpu(sibyte_hpt_irqaction, cpu); struct clock_event_device *cd = &per_cpu(sibyte_hpt_clockevent, cpu); unsigned char *name = per_cpu(sibyte_hpt_name, cpu); + unsigned long flags = IRQF_PERCPU | IRQF_TIMER; BUG_ON(cpu > 3); /* Only have 4 general purpose timers */ @@ -133,11 +132,7 @@ void sb1480_clockevent_init(void) bcm1480_unmask_irq(cpu, irq); - action->handler = sibyte_counter_handler; - action->flags = IRQF_PERCPU | IRQF_TIMER; - action->name = name; - action->dev_id = cd; - irq_set_affinity(irq, cpumask_of(cpu)); - setup_irq(irq, action); + if (request_irq(irq, sibyte_counter_handler, flags, name, cd)) + pr_err("Failed to request irq %d (%s)\n", irq, name); } diff --git a/arch/mips/kernel/cevt-ds1287.c b/arch/mips/kernel/cevt-ds1287.c index 1e1edab4a63f..9a47fbcd4638 100644 --- a/arch/mips/kernel/cevt-ds1287.c +++ b/arch/mips/kernel/cevt-ds1287.c @@ -100,14 +100,9 @@ static irqreturn_t ds1287_interrupt(int irq, void *dev_id) return IRQ_HANDLED; } -static struct irqaction ds1287_irqaction = { - .handler = ds1287_interrupt, - .flags = IRQF_PERCPU | IRQF_TIMER, - .name = "ds1287", -}; - int __init ds1287_clockevent_init(int irq) { + unsigned long flags = IRQF_PERCPU | IRQF_TIMER; struct clock_event_device *cd; cd = &ds1287_clockevent; @@ -122,5 +117,5 @@ int __init ds1287_clockevent_init(int irq) clockevents_register_device(&ds1287_clockevent); - return setup_irq(irq, &ds1287_irqaction); + return request_irq(irq, ds1287_interrupt, flags, "ds1287", NULL); } diff --git a/arch/mips/kernel/cevt-gt641xx.c b/arch/mips/kernel/cevt-gt641xx.c index eb53548d2538..5b132e8c51da 100644 --- a/arch/mips/kernel/cevt-gt641xx.c +++ b/arch/mips/kernel/cevt-gt641xx.c @@ -120,12 +120,6 @@ static irqreturn_t gt641xx_timer0_interrupt(int irq, void *dev_id) return IRQ_HANDLED; } -static struct irqaction gt641xx_timer0_irqaction = { - .handler = gt641xx_timer0_interrupt, - .flags = IRQF_PERCPU | IRQF_TIMER, - .name = "gt641xx_timer0", -}; - static int __init gt641xx_timer0_clockevent_init(void) { struct clock_event_device *cd; @@ -146,6 +140,7 @@ static int __init gt641xx_timer0_clockevent_init(void) clockevents_register_device(>641xx_timer0_clockevent); - return setup_irq(GT641XX_TIMER0_IRQ, >641xx_timer0_irqaction); + return request_irq(GT641XX_TIMER0_IRQ, gt641xx_timer0_interrupt, + IRQF_PERCPU | IRQF_TIMER, "gt641xx_timer0", NULL); } arch_initcall(gt641xx_timer0_clockevent_init); diff --git a/arch/mips/kernel/cevt-r4k.c b/arch/mips/kernel/cevt-r4k.c index dd6a18bc10ab..17a9cbb8b3df 100644 --- a/arch/mips/kernel/cevt-r4k.c +++ b/arch/mips/kernel/cevt-r4k.c @@ -252,6 +252,7 @@ unsigned int __weak get_c0_compare_int(void) int r4k_clockevent_init(void) { + unsigned long flags = IRQF_PERCPU | IRQF_TIMER | IRQF_SHARED; unsigned int cpu = smp_processor_id(); struct clock_event_device *cd; unsigned int irq, min_delta; @@ -291,7 +292,9 @@ int r4k_clockevent_init(void) cp0_timer_irq_installed = 1; - setup_irq(irq, &c0_compare_irqaction); + if (request_irq(irq, c0_compare_interrupt, flags, "timer", + c0_compare_interrupt)) + pr_err("Failed to request irq %d (timer)\n", irq); return 0; } diff --git a/arch/mips/kernel/cevt-sb1250.c b/arch/mips/kernel/cevt-sb1250.c index e1a08606c27e..0451273fab9f 100644 --- a/arch/mips/kernel/cevt-sb1250.c +++ b/arch/mips/kernel/cevt-sb1250.c @@ -90,16 +90,15 @@ static irqreturn_t sibyte_counter_handler(int irq, void *dev_id) } static DEFINE_PER_CPU(struct clock_event_device, sibyte_hpt_clockevent); -static DEFINE_PER_CPU(struct irqaction, sibyte_hpt_irqaction); static DEFINE_PER_CPU(char [18], sibyte_hpt_name); void sb1250_clockevent_init(void) { unsigned int cpu = smp_processor_id(); unsigned int irq = K_INT_TIMER_0 + cpu; - struct irqaction *action = &per_cpu(sibyte_hpt_irqaction, cpu); struct clock_event_device *cd = &per_cpu(sibyte_hpt_clockevent, cpu); unsigned char *name = per_cpu(sibyte_hpt_name, cpu); + unsigned long flags = IRQF_PERCPU | IRQF_TIMER; /* Only have 4 general purpose timers, and we use last one as hpt */ BUG_ON(cpu > 2); @@ -133,11 +132,7 @@ void sb1250_clockevent_init(void) sb1250_unmask_irq(cpu, irq); - action->handler = sibyte_counter_handler; - action->flags = IRQF_PERCPU | IRQF_TIMER; - action->name = name; - action->dev_id = cd; - irq_set_affinity(irq, cpumask_of(cpu)); - setup_irq(irq, action); + if (request_irq(irq, sibyte_counter_handler, flags, name, cd)) + pr_err("Failed to request irq %d (%s)\n", irq, name); } diff --git a/arch/mips/kernel/cevt-txx9.c b/arch/mips/kernel/cevt-txx9.c index 7b17c8f5009d..5709469c21ff 100644 --- a/arch/mips/kernel/cevt-txx9.c +++ b/arch/mips/kernel/cevt-txx9.c @@ -174,13 +174,6 @@ static irqreturn_t txx9tmr_interrupt(int irq, void *dev_id) return IRQ_HANDLED; } -static struct irqaction txx9tmr_irq = { - .handler = txx9tmr_interrupt, - .flags = IRQF_PERCPU | IRQF_TIMER, - .name = "txx9tmr", - .dev_id = &txx9_clock_event_device, -}; - void __init txx9_clockevent_init(unsigned long baseaddr, int irq, unsigned int imbusclk) { @@ -202,7 +195,9 @@ void __init txx9_clockevent_init(unsigned long baseaddr, int irq, cd->irq = irq; cd->cpumask = cpumask_of(0), clockevents_register_device(cd); - setup_irq(irq, &txx9tmr_irq); + if (request_irq(irq, txx9tmr_interrupt, IRQF_PERCPU | IRQF_TIMER, + "txx9tmr", &txx9_clock_event_device)) + pr_err("Failed to request irq %d (txx9tmr)\n", irq); printk(KERN_INFO "TXx9: clockevent device at 0x%lx, irq %d\n", baseaddr, irq); } diff --git a/arch/mips/kernel/cpu-probe.c b/arch/mips/kernel/cpu-probe.c index 6ab6b03d35ba..f21a2304401f 100644 --- a/arch/mips/kernel/cpu-probe.c +++ b/arch/mips/kernel/cpu-probe.c @@ -513,6 +513,13 @@ static inline void set_elf_platform(int cpu, const char *plat) __elf_platform = plat; } +static inline void set_elf_base_platform(const char *plat) +{ + if (__elf_base_platform == NULL) { + __elf_base_platform = plat; + } +} + static inline void cpu_probe_vmbits(struct cpuinfo_mips *c) { #ifdef __NEED_VMBITS_PROBE @@ -527,36 +534,46 @@ static void set_isa(struct cpuinfo_mips *c, unsigned int isa) switch (isa) { case MIPS_CPU_ISA_M64R2: c->isa_level |= MIPS_CPU_ISA_M32R2 | MIPS_CPU_ISA_M64R2; + set_elf_base_platform("mips64r2"); /* fall through */ case MIPS_CPU_ISA_M64R1: c->isa_level |= MIPS_CPU_ISA_M32R1 | MIPS_CPU_ISA_M64R1; + set_elf_base_platform("mips64"); /* fall through */ case MIPS_CPU_ISA_V: c->isa_level |= MIPS_CPU_ISA_V; + set_elf_base_platform("mips5"); /* fall through */ case MIPS_CPU_ISA_IV: c->isa_level |= MIPS_CPU_ISA_IV; + set_elf_base_platform("mips4"); /* fall through */ case MIPS_CPU_ISA_III: c->isa_level |= MIPS_CPU_ISA_II | MIPS_CPU_ISA_III; + set_elf_base_platform("mips3"); break; /* R6 incompatible with everything else */ case MIPS_CPU_ISA_M64R6: c->isa_level |= MIPS_CPU_ISA_M32R6 | MIPS_CPU_ISA_M64R6; + set_elf_base_platform("mips64r6"); /* fall through */ case MIPS_CPU_ISA_M32R6: c->isa_level |= MIPS_CPU_ISA_M32R6; + set_elf_base_platform("mips32r6"); /* Break here so we don't add incompatible ISAs */ break; case MIPS_CPU_ISA_M32R2: c->isa_level |= MIPS_CPU_ISA_M32R2; + set_elf_base_platform("mips32r2"); /* fall through */ case MIPS_CPU_ISA_M32R1: c->isa_level |= MIPS_CPU_ISA_M32R1; + set_elf_base_platform("mips32"); /* fall through */ case MIPS_CPU_ISA_II: c->isa_level |= MIPS_CPU_ISA_II; + set_elf_base_platform("mips2"); break; } } @@ -2113,6 +2130,7 @@ EXPORT_SYMBOL(__ua_limit); const char *__cpu_name[NR_CPUS]; const char *__elf_platform; +const char *__elf_base_platform; void cpu_probe(void) { diff --git a/arch/mips/kernel/csrc-r4k.c b/arch/mips/kernel/csrc-r4k.c index eed099f35bf1..437dda64fd7a 100644 --- a/arch/mips/kernel/csrc-r4k.c +++ b/arch/mips/kernel/csrc-r4k.c @@ -78,7 +78,7 @@ int __init init_r4k_clocksource(void) * by the VDSO (HWREna is configured by configure_hwrena()). */ if (cpu_has_mips_r2_r6 && rdhwr_count_usable()) - clocksource_mips.archdata.vdso_clock_mode = VDSO_CLOCK_R4K; + clocksource_mips.vdso_clock_mode = VDSO_CLOCKMODE_R4K; clocksource_register_hz(&clocksource_mips, mips_hpt_frequency); diff --git a/arch/mips/kernel/i8253.c b/arch/mips/kernel/i8253.c index df7ddd246eaa..ca21210e06b5 100644 --- a/arch/mips/kernel/i8253.c +++ b/arch/mips/kernel/i8253.c @@ -18,16 +18,13 @@ static irqreturn_t timer_interrupt(int irq, void *dev_id) return IRQ_HANDLED; } -static struct irqaction irq0 = { - .handler = timer_interrupt, - .flags = IRQF_NOBALANCING | IRQF_TIMER, - .name = "timer" -}; - void __init setup_pit_timer(void) { + unsigned long flags = IRQF_NOBALANCING | IRQF_TIMER; + clockevent_i8253_init(true); - setup_irq(0, &irq0); + if (request_irq(0, timer_interrupt, flags, "timer", NULL)) + pr_err("Failed to request irq 0 (timer)\n"); } static int __init init_pit_clocksource(void) diff --git a/arch/mips/kernel/process.c b/arch/mips/kernel/process.c index 339870ed92f7..b2a797557825 100644 --- a/arch/mips/kernel/process.c +++ b/arch/mips/kernel/process.c @@ -75,7 +75,9 @@ void start_thread(struct pt_regs * regs, unsigned long pc, unsigned long sp) lose_fpu(0); clear_thread_flag(TIF_MSA_CTX_LIVE); clear_used_math(); +#ifdef CONFIG_MIPS_FP_SUPPORT atomic_set(¤t->thread.bd_emu_frame, BD_EMUFRAME_NONE); +#endif init_dsp(); regs->cp0_epc = pc; regs->regs[29] = sp; @@ -176,7 +178,9 @@ int copy_thread_tls(unsigned long clone_flags, unsigned long usp, clear_tsk_thread_flag(p, TIF_FPUBOUND); #endif /* CONFIG_MIPS_MT_FPAFF */ +#ifdef CONFIG_MIPS_FP_SUPPORT atomic_set(&p->thread.bd_emu_frame, BD_EMUFRAME_NONE); +#endif if (clone_flags & CLONE_SETTLS) ti->tp_value = tls; @@ -650,8 +654,10 @@ unsigned long mips_stack_top(void) { unsigned long top = TASK_SIZE & PAGE_MASK; - /* One page for branch delay slot "emulation" */ - top -= PAGE_SIZE; + if (IS_ENABLED(CONFIG_MIPS_FP_SUPPORT)) { + /* One page for branch delay slot "emulation" */ + top -= PAGE_SIZE; + } /* Space for the VDSO, data page & GIC user page */ top -= PAGE_ALIGN(current->thread.abi->vdso->size); diff --git a/arch/mips/kernel/rtlx-mt.c b/arch/mips/kernel/rtlx-mt.c index cb95470e2e69..38c6925a1bea 100644 --- a/arch/mips/kernel/rtlx-mt.c +++ b/arch/mips/kernel/rtlx-mt.c @@ -51,11 +51,6 @@ static irqreturn_t rtlx_interrupt(int irq, void *dev_id) return IRQ_HANDLED; } -static struct irqaction rtlx_irq = { - .handler = rtlx_interrupt, - .name = "RTLX", -}; - static int rtlx_irq_num = MIPS_CPU_IRQ_BASE + MIPS_CPU_RTLX_IRQ; void _interrupt_sp(void) @@ -124,8 +119,7 @@ int __init rtlx_module_init(void) goto out_class; } - rtlx_irq.dev_id = rtlx; - err = setup_irq(rtlx_irq_num, &rtlx_irq); + err = request_irq(rtlx_irq_num, rtlx_interrupt, 0, "RTLX", rtlx); if (err) goto out_class; diff --git a/arch/mips/kernel/setup.c b/arch/mips/kernel/setup.c index 1ac2752fb791..10bef8f78e7c 100644 --- a/arch/mips/kernel/setup.c +++ b/arch/mips/kernel/setup.c @@ -28,6 +28,7 @@ #include <linux/decompress/generic.h> #include <linux/of_fdt.h> #include <linux/of_reserved_mem.h> +#include <linux/dmi.h> #include <asm/addrspace.h> #include <asm/bootinfo.h> @@ -605,7 +606,8 @@ static void __init bootcmdline_init(char **cmdline_p) * If we're configured to take boot arguments from DT, look for those * now. */ - if (IS_ENABLED(CONFIG_MIPS_CMDLINE_FROM_DTB)) + if (IS_ENABLED(CONFIG_MIPS_CMDLINE_FROM_DTB) || + IS_ENABLED(CONFIG_MIPS_CMDLINE_DTB_EXTEND)) of_scan_flat_dt(bootcmdline_scan_chosen, &dt_bootargs); #endif @@ -798,6 +800,7 @@ void __init setup_arch(char **cmdline_p) #endif arch_mem_init(cmdline_p); + dmi_setup(); resource_init(); plat_smp_setup(); diff --git a/arch/mips/kernel/smp.c b/arch/mips/kernel/smp.c index f510c00bda88..48d84d5fcc36 100644 --- a/arch/mips/kernel/smp.c +++ b/arch/mips/kernel/smp.c @@ -207,25 +207,13 @@ static irqreturn_t ipi_call_interrupt(int irq, void *dev_id) return IRQ_HANDLED; } -static struct irqaction irq_resched = { - .handler = ipi_resched_interrupt, - .flags = IRQF_PERCPU, - .name = "IPI resched" -}; - -static struct irqaction irq_call = { - .handler = ipi_call_interrupt, - .flags = IRQF_PERCPU, - .name = "IPI call" -}; - -static void smp_ipi_init_one(unsigned int virq, - struct irqaction *action) +static void smp_ipi_init_one(unsigned int virq, const char *name, + irq_handler_t handler) { int ret; irq_set_handler(virq, handle_percpu_irq); - ret = setup_irq(virq, action); + ret = request_irq(virq, handler, IRQF_PERCPU, name, NULL); BUG_ON(ret); } @@ -278,12 +266,15 @@ int mips_smp_ipi_allocate(const struct cpumask *mask) int cpu; for_each_cpu(cpu, mask) { - smp_ipi_init_one(call_virq + cpu, &irq_call); - smp_ipi_init_one(sched_virq + cpu, &irq_resched); + smp_ipi_init_one(call_virq + cpu, "IPI call", + ipi_call_interrupt); + smp_ipi_init_one(sched_virq + cpu, "IPI resched", + ipi_resched_interrupt); } } else { - smp_ipi_init_one(call_virq, &irq_call); - smp_ipi_init_one(sched_virq, &irq_resched); + smp_ipi_init_one(call_virq, "IPI call", ipi_call_interrupt); + smp_ipi_init_one(sched_virq, "IPI resched", + ipi_resched_interrupt); } return 0; @@ -311,8 +302,8 @@ int mips_smp_ipi_free(const struct cpumask *mask) int cpu; for_each_cpu(cpu, mask) { - remove_irq(call_virq + cpu, &irq_call); - remove_irq(sched_virq + cpu, &irq_resched); + free_irq(call_virq + cpu, NULL); + free_irq(sched_virq + cpu, NULL); } } irq_destroy_ipi(call_virq, mask); @@ -696,29 +687,22 @@ EXPORT_SYMBOL(flush_tlb_one); #ifdef CONFIG_GENERIC_CLOCKEVENTS_BROADCAST -static DEFINE_PER_CPU(atomic_t, tick_broadcast_count); static DEFINE_PER_CPU(call_single_data_t, tick_broadcast_csd); void tick_broadcast(const struct cpumask *mask) { - atomic_t *count; call_single_data_t *csd; int cpu; for_each_cpu(cpu, mask) { - count = &per_cpu(tick_broadcast_count, cpu); csd = &per_cpu(tick_broadcast_csd, cpu); - - if (atomic_inc_return(count) == 1) - smp_call_function_single_async(cpu, csd); + smp_call_function_single_async(cpu, csd); } } static void tick_broadcast_callee(void *info) { - int cpu = smp_processor_id(); tick_receive_broadcast(); - atomic_set(&per_cpu(tick_broadcast_count, cpu), 0); } static int __init tick_broadcast_init(void) diff --git a/arch/mips/kernel/vdso.c b/arch/mips/kernel/vdso.c index bc35f8499111..3adb7354bc01 100644 --- a/arch/mips/kernel/vdso.c +++ b/arch/mips/kernel/vdso.c @@ -71,10 +71,12 @@ subsys_initcall(init_vdso); static unsigned long vdso_base(void) { - unsigned long base; + unsigned long base = STACK_TOP; - /* Skip the delay slot emulation page */ - base = STACK_TOP + PAGE_SIZE; + if (IS_ENABLED(CONFIG_MIPS_FP_SUPPORT)) { + /* Skip the delay slot emulation page */ + base += PAGE_SIZE; + } if (current->flags & PF_RANDOMIZE) { base += get_random_int() & (VDSO_RANDOMIZE_SIZE - 1); @@ -95,14 +97,16 @@ int arch_setup_additional_pages(struct linux_binprm *bprm, int uses_interp) if (down_write_killable(&mm->mmap_sem)) return -EINTR; - /* Map delay slot emulation page */ - base = mmap_region(NULL, STACK_TOP, PAGE_SIZE, - VM_READ | VM_EXEC | - VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC, - 0, NULL); - if (IS_ERR_VALUE(base)) { - ret = base; - goto out; + if (IS_ENABLED(CONFIG_MIPS_FP_SUPPORT)) { + /* Map delay slot emulation page */ + base = mmap_region(NULL, STACK_TOP, PAGE_SIZE, + VM_READ | VM_EXEC | + VM_MAYREAD | VM_MAYWRITE | VM_MAYEXEC, + 0, NULL); + if (IS_ERR_VALUE(base)) { + ret = base; + goto out; + } } /* diff --git a/arch/mips/lasat/interrupt.c b/arch/mips/lasat/interrupt.c index 0f3a8975081d..7965bbd0d319 100644 --- a/arch/mips/lasat/interrupt.c +++ b/arch/mips/lasat/interrupt.c @@ -90,14 +90,9 @@ asmlinkage void plat_irq_dispatch(void) } } -static struct irqaction cascade = { - .handler = no_action, - .name = "cascade", - .flags = IRQF_NO_THREAD, -}; - void __init arch_init_irq(void) { + int irq = LASAT_CASCADE_IRQ; int i; if (IS_LASAT_200()) { @@ -119,5 +114,6 @@ void __init arch_init_irq(void) for (i = LASAT_IRQ_BASE; i <= LASAT_IRQ_END; i++) irq_set_chip_and_handler(i, &lasat_irq_type, handle_level_irq); - setup_irq(LASAT_CASCADE_IRQ, &cascade); + if (request_irq(irq, no_action, IRQF_NO_THREAD, "cascade", NULL)) + pr_err("Failed to request irq %d (cascade)\n", irq); } diff --git a/arch/mips/lib/delay.c b/arch/mips/lib/delay.c index 68c495ed71e3..2e8dfc1d59c8 100644 --- a/arch/mips/lib/delay.c +++ b/arch/mips/lib/delay.c @@ -24,6 +24,8 @@ #define GCC_DADDI_IMM_ASM() "r" #endif +#ifndef CONFIG_HAVE_PLAT_DELAY + void __delay(unsigned long loops) { __asm__ __volatile__ ( @@ -63,3 +65,5 @@ void __ndelay(unsigned long ns) __delay((ns * 0x00000005ull * HZ * lpj) >> 32); } EXPORT_SYMBOL(__ndelay); + +#endif diff --git a/arch/mips/lib/memcpy.S b/arch/mips/lib/memcpy.S index f7994d936505..88065ee433cd 100644 --- a/arch/mips/lib/memcpy.S +++ b/arch/mips/lib/memcpy.S @@ -598,6 +598,7 @@ SEXC(1) nop .endm +#ifndef CONFIG_HAVE_PLAT_MEMCPY .align 5 LEAF(memmove) EXPORT_SYMBOL(memmove) @@ -665,6 +666,8 @@ EXPORT_SYMBOL(__copy_user) /* Legacy Mode, user <-> user */ __BUILD_COPY_USER LEGACY_MODE USEROP USEROP +#endif + #ifdef CONFIG_EVA /* diff --git a/arch/mips/loongson2ef/common/bonito-irq.c b/arch/mips/loongson2ef/common/bonito-irq.c index 82352cc25e4c..c06ad412ee20 100644 --- a/arch/mips/loongson2ef/common/bonito-irq.c +++ b/arch/mips/loongson2ef/common/bonito-irq.c @@ -30,11 +30,6 @@ static struct irq_chip bonito_irq_type = { .irq_unmask = bonito_irq_enable, }; -static struct irqaction __maybe_unused dma_timeout_irqaction = { - .handler = no_action, - .name = "dma_timeout", -}; - void bonito_irq_init(void) { u32 i; @@ -44,6 +39,8 @@ void bonito_irq_init(void) handle_level_irq); #ifdef CONFIG_CPU_LOONGSON2E - setup_irq(LOONGSON_IRQ_BASE + 10, &dma_timeout_irqaction); + i = LOONGSON_IRQ_BASE + 10; + if (request_irq(i, no_action, 0, "dma_timeout", NULL)) + pr_err("Failed to request irq %d (dma_timeout)\n", i); #endif } diff --git a/arch/mips/loongson2ef/common/cs5536/cs5536_mfgpt.c b/arch/mips/loongson2ef/common/cs5536/cs5536_mfgpt.c index 30af1b7c7529..f21a540a1dd2 100644 --- a/arch/mips/loongson2ef/common/cs5536/cs5536_mfgpt.c +++ b/arch/mips/loongson2ef/common/cs5536/cs5536_mfgpt.c @@ -100,12 +100,6 @@ static irqreturn_t timer_interrupt(int irq, void *dev_id) return IRQ_HANDLED; } -static struct irqaction irq5 = { - .handler = timer_interrupt, - .flags = IRQF_NOBALANCING | IRQF_TIMER, - .name = "timer" -}; - /* * Initialize the conversion factor and the min/max deltas of the clock event * structure and register the clock event source with the framework. @@ -134,7 +128,9 @@ void __init setup_mfgpt0_timer(void) clockevents_register_device(cd); - setup_irq(CS5536_MFGPT_INTR, &irq5); + if (request_irq(CS5536_MFGPT_INTR, timer_interrupt, + IRQF_NOBALANCING | IRQF_TIMER, "timer", NULL)) + pr_err("Failed to register timer interrupt\n"); } /* diff --git a/arch/mips/loongson2ef/fuloong-2e/irq.c b/arch/mips/loongson2ef/fuloong-2e/irq.c index 32278e7bf85c..305aa2eb74ad 100644 --- a/arch/mips/loongson2ef/fuloong-2e/irq.c +++ b/arch/mips/loongson2ef/fuloong-2e/irq.c @@ -35,14 +35,10 @@ asmlinkage void mach_irq_dispatch(unsigned int pending) spurious_interrupt(); } -static struct irqaction cascade_irqaction = { - .handler = no_action, - .name = "cascade", - .flags = IRQF_NO_THREAD, -}; - void __init mach_init_irq(void) { + int irq; + /* init all controller * 0-15 ------> i8259 interrupt * 16-23 ------> mips cpu interrupt @@ -59,7 +55,11 @@ void __init mach_init_irq(void) bonito_irq_init(); /* bonito irq at IP2 */ - setup_irq(MIPS_CPU_IRQ_BASE + 2, &cascade_irqaction); + irq = MIPS_CPU_IRQ_BASE + 2; + if (request_irq(irq, no_action, IRQF_NO_THREAD, "cascade", NULL)) + pr_err("Failed to request irq %d (cascade)\n", irq); /* 8259 irq at IP5 */ - setup_irq(MIPS_CPU_IRQ_BASE + 5, &cascade_irqaction); + irq = MIPS_CPU_IRQ_BASE + 5; + if (request_irq(irq, no_action, IRQF_NO_THREAD, "cascade", NULL)) + pr_err("Failed to request irq %d (cascade)\n", irq); } diff --git a/arch/mips/loongson2ef/lemote-2f/irq.c b/arch/mips/loongson2ef/lemote-2f/irq.c index c58a044c6c07..6f00579971a3 100644 --- a/arch/mips/loongson2ef/lemote-2f/irq.c +++ b/arch/mips/loongson2ef/lemote-2f/irq.c @@ -90,18 +90,6 @@ static irqreturn_t ip6_action(int cpl, void *dev_id) return IRQ_HANDLED; } -static struct irqaction ip6_irqaction = { - .handler = ip6_action, - .name = "cascade", - .flags = IRQF_SHARED | IRQF_NO_THREAD, -}; - -static struct irqaction cascade_irqaction = { - .handler = no_action, - .name = "cascade", - .flags = IRQF_NO_THREAD | IRQF_NO_SUSPEND, -}; - void __init mach_init_irq(void) { /* init all controller @@ -120,7 +108,11 @@ void __init mach_init_irq(void) bonito_irq_init(); /* setup north bridge irq (bonito) */ - setup_irq(LOONGSON_NORTH_BRIDGE_IRQ, &ip6_irqaction); + if (request_irq(LOONGSON_NORTH_BRIDGE_IRQ, ip6_action, + IRQF_SHARED | IRQF_NO_THREAD, "cascade", ip6_action)) + pr_err("Failed to register north bridge cascade interrupt\n"); /* setup source bridge irq (i8259) */ - setup_irq(LOONGSON_SOUTH_BRIDGE_IRQ, &cascade_irqaction); + if (request_irq(LOONGSON_SOUTH_BRIDGE_IRQ, no_action, + IRQF_NO_THREAD | IRQF_NO_SUSPEND, "cascade", NULL)) + pr_err("Failed to register south bridge cascade interrupt\n"); } diff --git a/arch/mips/loongson32/common/irq.c b/arch/mips/loongson32/common/irq.c index 168d221d4178..9a50070f74f7 100644 --- a/arch/mips/loongson32/common/irq.c +++ b/arch/mips/loongson32/common/irq.c @@ -149,12 +149,6 @@ asmlinkage void plat_irq_dispatch(void) } -static struct irqaction cascade_irqaction = { - .handler = no_action, - .name = "cascade", - .flags = IRQF_NO_THREAD, -}; - static void __init ls1x_irq_init(int base) { int n; @@ -176,12 +170,17 @@ static void __init ls1x_irq_init(int base) handle_level_irq); } - setup_irq(INT0_IRQ, &cascade_irqaction); - setup_irq(INT1_IRQ, &cascade_irqaction); - setup_irq(INT2_IRQ, &cascade_irqaction); - setup_irq(INT3_IRQ, &cascade_irqaction); + if (request_irq(INT0_IRQ, no_action, IRQF_NO_THREAD, "cascade", NULL)) + pr_err("Failed to request irq %d (cascade)\n", INT0_IRQ); + if (request_irq(INT1_IRQ, no_action, IRQF_NO_THREAD, "cascade", NULL)) + pr_err("Failed to request irq %d (cascade)\n", INT1_IRQ); + if (request_irq(INT2_IRQ, no_action, IRQF_NO_THREAD, "cascade", NULL)) + pr_err("Failed to request irq %d (cascade)\n", INT2_IRQ); + if (request_irq(INT3_IRQ, no_action, IRQF_NO_THREAD, "cascade", NULL)) + pr_err("Failed to request irq %d (cascade)\n", INT3_IRQ); #if defined(CONFIG_LOONGSON1_LS1C) - setup_irq(INT4_IRQ, &cascade_irqaction); + if (request_irq(INT4_IRQ, no_action, IRQF_NO_THREAD, "cascade", NULL)) + pr_err("Failed to request irq %d (cascade)\n", INT4_IRQ); #endif } diff --git a/arch/mips/loongson32/common/time.c b/arch/mips/loongson32/common/time.c index 4cc73f7ac0d4..459b15c96d3b 100644 --- a/arch/mips/loongson32/common/time.c +++ b/arch/mips/loongson32/common/time.c @@ -176,13 +176,6 @@ static struct clock_event_device ls1x_clockevent = { .tick_resume = ls1x_clockevent_tick_resume, }; -static struct irqaction ls1x_pwmtimer_irqaction = { - .name = "ls1x-pwmtimer", - .handler = ls1x_clockevent_isr, - .dev_id = &ls1x_clockevent, - .flags = IRQF_PERCPU | IRQF_TIMER, -}; - static void __init ls1x_time_init(void) { struct clock_event_device *cd = &ls1x_clockevent; @@ -206,7 +199,10 @@ static void __init ls1x_time_init(void) if (ret) panic(KERN_ERR "Failed to register clocksource: %d\n", ret); - setup_irq(LS1X_TIMER_IRQ, &ls1x_pwmtimer_irqaction); + if (request_irq(LS1X_TIMER_IRQ, ls1x_clockevent_isr, + IRQF_PERCPU | IRQF_TIMER, "ls1x-pwmtimer", + &ls1x_clockevent)) + pr_err("Failed to register ls1x-pwmtimer interrupt\n"); } #endif /* CONFIG_CEVT_CSRC_LS1X */ diff --git a/arch/mips/loongson64/Makefile b/arch/mips/loongson64/Makefile index 7821891bc5d0..b7f40b179c71 100644 --- a/arch/mips/loongson64/Makefile +++ b/arch/mips/loongson64/Makefile @@ -2,7 +2,7 @@ # # Makefile for Loongson-3 family machines # -obj-$(CONFIG_MACH_LOONGSON64) += irq.o cop2-ex.o platform.o acpi_init.o dma.o \ +obj-$(CONFIG_MACH_LOONGSON64) += cop2-ex.o platform.o acpi_init.o dma.o \ setup.o init.o env.o time.o reset.o \ obj-$(CONFIG_SMP) += smp.o diff --git a/arch/mips/loongson64/env.c b/arch/mips/loongson64/env.c index 0daeb7bcf023..2554ef11170d 100644 --- a/arch/mips/loongson64/env.c +++ b/arch/mips/loongson64/env.c @@ -17,6 +17,7 @@ #include <asm/bootinfo.h> #include <loongson.h> #include <boot_param.h> +#include <builtin_dtbs.h> #include <workarounds.h> u32 cpu_clock_freq; @@ -120,6 +121,28 @@ void __init prom_init_env(void) loongson_sysconf.cores_per_node - 1) / loongson_sysconf.cores_per_node; + if ((read_c0_prid() & PRID_IMP_MASK) == PRID_IMP_LOONGSON_64C) { + switch (read_c0_prid() & PRID_REV_MASK) { + case PRID_REV_LOONGSON3A_R1: + case PRID_REV_LOONGSON3A_R2_0: + case PRID_REV_LOONGSON3A_R2_1: + case PRID_REV_LOONGSON3A_R3_0: + case PRID_REV_LOONGSON3A_R3_1: + loongson_fdt_blob = __dtb_loongson3_4core_rs780e_begin; + break; + case PRID_REV_LOONGSON3B_R1: + case PRID_REV_LOONGSON3B_R2: + loongson_fdt_blob = __dtb_loongson3_8core_rs780e_begin; + break; + default: + break; + } + } + + + if (!loongson_fdt_blob) + pr_err("Failed to determine built-in Loongson64 dtb\n"); + loongson_sysconf.pci_mem_start_addr = eirq_source->pci_mem_start_addr; loongson_sysconf.pci_mem_end_addr = eirq_source->pci_mem_end_addr; loongson_sysconf.pci_io_base = eirq_source->pci_io_start_addr; diff --git a/arch/mips/loongson64/hpet.c b/arch/mips/loongson64/hpet.c index ed15430ad64f..e4282592575b 100644 --- a/arch/mips/loongson64/hpet.c +++ b/arch/mips/loongson64/hpet.c @@ -187,12 +187,6 @@ static irqreturn_t hpet_irq_handler(int irq, void *data) return IRQ_NONE; } -static struct irqaction hpet_irq = { - .handler = hpet_irq_handler, - .flags = IRQF_NOBALANCING | IRQF_TIMER, - .name = "hpet", -}; - /* * hpet address assignation and irq setting should be done in bios. * but pmon don't do this, we just setup here directly. @@ -224,6 +218,7 @@ static void hpet_setup(void) void __init setup_hpet_timer(void) { + unsigned long flags = IRQF_NOBALANCING | IRQF_TIMER; unsigned int cpu = smp_processor_id(); struct clock_event_device *cd; @@ -247,7 +242,8 @@ void __init setup_hpet_timer(void) cd->min_delta_ticks = HPET_MIN_PROG_DELTA; clockevents_register_device(cd); - setup_irq(HPET_T0_IRQ, &hpet_irq); + if (request_irq(HPET_T0_IRQ, hpet_irq_handler, flags, "hpet", NULL)) + pr_err("Failed to request irq %d (hpet)\n", HPET_T0_IRQ); pr_info("hpet clock event device register\n"); } diff --git a/arch/mips/loongson64/init.c b/arch/mips/loongson64/init.c index 5ac1a0f35ca4..da38944471f4 100644 --- a/arch/mips/loongson64/init.c +++ b/arch/mips/loongson64/init.c @@ -4,6 +4,7 @@ * Author: Wu Zhangjin, wuzhangjin@gmail.com */ +#include <linux/irqchip.h> #include <linux/memblock.h> #include <asm/bootinfo.h> #include <asm/traps.h> @@ -44,3 +45,8 @@ void __init prom_init(void) void __init prom_free_prom_memory(void) { } + +void __init arch_init_irq(void) +{ + irqchip_init(); +} diff --git a/arch/mips/loongson64/irq.c b/arch/mips/loongson64/irq.c deleted file mode 100644 index 79ad797497e4..000000000000 --- a/arch/mips/loongson64/irq.c +++ /dev/null @@ -1,162 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -#include <loongson.h> -#include <irq.h> -#include <linux/interrupt.h> -#include <linux/init.h> - -#include <asm/irq_cpu.h> -#include <asm/i8259.h> -#include <asm/mipsregs.h> - -#include "smp.h" - -extern void loongson3_send_irq_by_ipi(int cpu, int irqs); - -unsigned int irq_cpu[16] = {[0 ... 15] = -1}; -unsigned int ht_irq[] = {0, 1, 3, 4, 5, 6, 7, 8, 12, 14, 15}; -unsigned int local_irq = 1<<0 | 1<<1 | 1<<2 | 1<<7 | 1<<8 | 1<<12; - -int plat_set_irq_affinity(struct irq_data *d, const struct cpumask *affinity, - bool force) -{ - unsigned int cpu; - struct cpumask new_affinity; - - /* I/O devices are connected on package-0 */ - cpumask_copy(&new_affinity, affinity); - for_each_cpu(cpu, affinity) - if (cpu_data[cpu].package > 0) - cpumask_clear_cpu(cpu, &new_affinity); - - if (cpumask_empty(&new_affinity)) - return -EINVAL; - - cpumask_copy(d->common->affinity, &new_affinity); - - return IRQ_SET_MASK_OK_NOCOPY; -} - -static void ht_irqdispatch(void) -{ - unsigned int i, irq; - struct irq_data *irqd; - struct cpumask affinity; - - irq = LOONGSON_HT1_INT_VECTOR(0); - LOONGSON_HT1_INT_VECTOR(0) = irq; /* Acknowledge the IRQs */ - - for (i = 0; i < ARRAY_SIZE(ht_irq); i++) { - if (!(irq & (0x1 << ht_irq[i]))) - continue; - - /* handled by local core */ - if (local_irq & (0x1 << ht_irq[i])) { - do_IRQ(ht_irq[i]); - continue; - } - - irqd = irq_get_irq_data(ht_irq[i]); - cpumask_and(&affinity, irqd->common->affinity, cpu_active_mask); - if (cpumask_empty(&affinity)) { - do_IRQ(ht_irq[i]); - continue; - } - - irq_cpu[ht_irq[i]] = cpumask_next(irq_cpu[ht_irq[i]], &affinity); - if (irq_cpu[ht_irq[i]] >= nr_cpu_ids) - irq_cpu[ht_irq[i]] = cpumask_first(&affinity); - - if (irq_cpu[ht_irq[i]] == 0) { - do_IRQ(ht_irq[i]); - continue; - } - - /* balanced by other cores */ - loongson3_send_irq_by_ipi(irq_cpu[ht_irq[i]], (0x1 << ht_irq[i])); - } -} - -#define UNUSED_IPS (CAUSEF_IP5 | CAUSEF_IP4 | CAUSEF_IP1 | CAUSEF_IP0) - -asmlinkage void plat_irq_dispatch(void) -{ - unsigned int pending; - - pending = read_c0_cause() & read_c0_status() & ST0_IM; - - if (pending & CAUSEF_IP7) - do_IRQ(LOONGSON_TIMER_IRQ); -#if defined(CONFIG_SMP) - if (pending & CAUSEF_IP6) - loongson3_ipi_interrupt(NULL); -#endif - if (pending & CAUSEF_IP3) - ht_irqdispatch(); - if (pending & CAUSEF_IP2) - do_IRQ(LOONGSON_UART_IRQ); - if (pending & UNUSED_IPS) { - pr_err("%s : spurious interrupt\n", __func__); - spurious_interrupt(); - } -} - -static inline void mask_loongson_irq(struct irq_data *d) { } -static inline void unmask_loongson_irq(struct irq_data *d) { } - - /* For MIPS IRQs which shared by all cores */ -static struct irq_chip loongson_irq_chip = { - .name = "Loongson", - .irq_ack = mask_loongson_irq, - .irq_mask = mask_loongson_irq, - .irq_mask_ack = mask_loongson_irq, - .irq_unmask = unmask_loongson_irq, - .irq_eoi = unmask_loongson_irq, -}; - -void irq_router_init(void) -{ - int i; - - /* route LPC int to cpu core0 int 0 */ - LOONGSON_INT_ROUTER_LPC = - LOONGSON_INT_COREx_INTy(loongson_sysconf.boot_cpu_id, 0); - /* route HT1 int0 ~ int7 to cpu core0 INT1*/ - for (i = 0; i < 8; i++) - LOONGSON_INT_ROUTER_HT1(i) = - LOONGSON_INT_COREx_INTy(loongson_sysconf.boot_cpu_id, 1); - /* enable HT1 interrupt */ - LOONGSON_HT1_INTN_EN(0) = 0xffffffff; - /* enable router interrupt intenset */ - LOONGSON_INT_ROUTER_INTENSET = - LOONGSON_INT_ROUTER_INTEN | (0xffff << 16) | 0x1 << 10; -} - -void __init arch_init_irq(void) -{ - struct irq_chip *chip; - - clear_c0_status(ST0_IM | ST0_BEV); - - irq_router_init(); - mips_cpu_irq_init(); - init_i8259_irqs(); - chip = irq_get_chip(I8259A_IRQ_BASE); - chip->irq_set_affinity = plat_set_irq_affinity; - - irq_set_chip_and_handler(LOONGSON_UART_IRQ, - &loongson_irq_chip, handle_percpu_irq); - irq_set_chip_and_handler(LOONGSON_BRIDGE_IRQ, - &loongson_irq_chip, handle_percpu_irq); - - set_c0_status(STATUSF_IP2 | STATUSF_IP3 | STATUSF_IP6); -} - -#ifdef CONFIG_HOTPLUG_CPU - -void fixup_irqs(void) -{ - irq_cpu_offline(); - clear_c0_status(ST0_IM); -} - -#endif diff --git a/arch/mips/loongson64/numa.c b/arch/mips/loongson64/numa.c index e5b40c5e3296..1ae072df4831 100644 --- a/arch/mips/loongson64/numa.c +++ b/arch/mips/loongson64/numa.c @@ -122,7 +122,7 @@ static unsigned long nid_to_addroffset(unsigned int nid) static void __init szmem(unsigned int node) { u32 i, mem_type; - static unsigned long num_physpages = 0; + static unsigned long num_physpages; u64 node_id, node_psize, start_pfn, end_pfn, mem_start, mem_size; /* Parse memory information and activate */ diff --git a/arch/mips/loongson64/setup.c b/arch/mips/loongson64/setup.c index 4fd27f4f90ed..6fe3ffffcaa6 100644 --- a/arch/mips/loongson64/setup.c +++ b/arch/mips/loongson64/setup.c @@ -8,9 +8,15 @@ #include <asm/wbflush.h> #include <asm/bootinfo.h> +#include <linux/libfdt.h> +#include <linux/of_fdt.h> + +#include <asm/prom.h> #include <loongson.h> +void *loongson_fdt_blob; + static void wbflush_loongson(void) { asm(".set\tpush\n\t" @@ -27,4 +33,14 @@ EXPORT_SYMBOL(__wbflush); void __init plat_mem_setup(void) { + if (loongson_fdt_blob) + __dt_setup_arch(loongson_fdt_blob); +} + +void __init device_tree_init(void) +{ + if (!initial_boot_params) + return; + + unflatten_and_copy_device_tree(); } diff --git a/arch/mips/loongson64/smp.c b/arch/mips/loongson64/smp.c index de8e0741ce2d..e1fe8bbb377d 100644 --- a/arch/mips/loongson64/smp.c +++ b/arch/mips/loongson64/smp.c @@ -4,6 +4,7 @@ * Author: Chen Huacai, chenhc@lemote.com */ +#include <irq.h> #include <linux/init.h> #include <linux/cpu.h> #include <linux/sched.h> @@ -25,6 +26,8 @@ DEFINE_PER_CPU(int, cpu_state); +#define LS_IPI_IRQ (MIPS_CPU_IRQ_BASE + 6) + static void *ipi_set0_regs[16]; static void *ipi_clear0_regs[16]; static void *ipi_status0_regs[16]; @@ -302,20 +305,13 @@ loongson3_send_ipi_mask(const struct cpumask *mask, unsigned int action) ipi_write_action(cpu_logical_map(i), (u32)action); } -#define IPI_IRQ_OFFSET 6 - -void loongson3_send_irq_by_ipi(int cpu, int irqs) -{ - ipi_write_action(cpu_logical_map(cpu), irqs << IPI_IRQ_OFFSET); -} -void loongson3_ipi_interrupt(struct pt_regs *regs) +static irqreturn_t loongson3_ipi_interrupt(int irq, void *dev_id) { int i, cpu = smp_processor_id(); - unsigned int action, c0count, irqs; + unsigned int action, c0count; action = ipi_read_clear(cpu); - irqs = action >> IPI_IRQ_OFFSET; if (action & SMP_RESCHEDULE_YOURSELF) scheduler_ipi(); @@ -335,13 +331,7 @@ void loongson3_ipi_interrupt(struct pt_regs *regs) __wbflush(); /* Let others see the result ASAP */ } - if (irqs) { - int irq; - while ((irq = ffs(irqs))) { - do_IRQ(irq-1); - irqs &= ~(1<<(irq-1)); - } - } + return IRQ_HANDLED; } #define MAX_LOOPS 800 @@ -438,6 +428,9 @@ static void __init loongson3_smp_setup(void) static void __init loongson3_prepare_cpus(unsigned int max_cpus) { + if (request_irq(LS_IPI_IRQ, loongson3_ipi_interrupt, + IRQF_PERCPU | IRQF_NO_SUSPEND, "SMP_IPI", NULL)) + pr_err("Failed to request IPI IRQ\n"); init_cpu_present(cpu_possible_mask); per_cpu(cpu_state, smp_processor_id()) = CPU_ONLINE; } @@ -484,7 +477,8 @@ static int loongson3_cpu_disable(void) set_cpu_online(cpu, false); calculate_cpu_foreign_map(); local_irq_save(flags); - fixup_irqs(); + irq_cpu_offline(); + clear_c0_status(ST0_IM); local_irq_restore(flags); local_flush_tlb_all(); diff --git a/arch/mips/mm/c-octeon.c b/arch/mips/mm/c-octeon.c index 8064821e9805..4baf965e6fe8 100644 --- a/arch/mips/mm/c-octeon.c +++ b/arch/mips/mm/c-octeon.c @@ -237,17 +237,17 @@ static void probe_octeon(void) c->dcache.sets = dcache_size / (c->dcache.linesz * c->dcache.ways); if (smp_processor_id() == 0) { - pr_notice("Primary instruction cache %ldkB, %s, %d way, " - "%d sets, linesize %d bytes.\n", - icache_size >> 10, - cpu_has_vtag_icache ? + pr_info("Primary instruction cache %ldkB, %s, %d way, " + "%d sets, linesize %d bytes.\n", + icache_size >> 10, + cpu_has_vtag_icache ? "virtually tagged" : "physically tagged", - c->icache.ways, c->icache.sets, c->icache.linesz); + c->icache.ways, c->icache.sets, c->icache.linesz); - pr_notice("Primary data cache %ldkB, %d-way, %d sets, " - "linesize %d bytes.\n", - dcache_size >> 10, c->dcache.ways, - c->dcache.sets, c->dcache.linesz); + pr_info("Primary data cache %ldkB, %d-way, %d sets, " + "linesize %d bytes.\n", + dcache_size >> 10, c->dcache.ways, + c->dcache.sets, c->dcache.linesz); } } diff --git a/arch/mips/mm/c-r3k.c b/arch/mips/mm/c-r3k.c index 15bb8cf59828..780dd2a567c1 100644 --- a/arch/mips/mm/c-r3k.c +++ b/arch/mips/mm/c-r3k.c @@ -316,9 +316,9 @@ void r3k_cache_init(void) _dma_cache_wback = r3k_dma_cache_wback_inv; _dma_cache_inv = r3k_dma_cache_wback_inv; - printk("Primary instruction cache %ldkB, linesize %ld bytes.\n", + pr_info("Primary instruction cache %ldkB, linesize %ld bytes.\n", icache_size >> 10, icache_lsize); - printk("Primary data cache %ldkB, linesize %ld bytes.\n", + pr_info("Primary data cache %ldkB, linesize %ld bytes.\n", dcache_size >> 10, dcache_lsize); build_clear_page(); diff --git a/arch/mips/mm/c-r4k.c b/arch/mips/mm/c-r4k.c index 5f3d0103b95d..36a311348739 100644 --- a/arch/mips/mm/c-r4k.c +++ b/arch/mips/mm/c-r4k.c @@ -901,6 +901,31 @@ static void r4k_dma_cache_wback_inv(unsigned long addr, unsigned long size) __sync(); } +static void prefetch_cache_inv(unsigned long addr, unsigned long size) +{ + unsigned int linesz = cpu_scache_line_size(); + unsigned long addr0 = addr, addr1; + + addr0 &= ~(linesz - 1); + addr1 = (addr0 + size - 1) & ~(linesz - 1); + + protected_writeback_scache_line(addr0); + if (likely(addr1 != addr0)) + protected_writeback_scache_line(addr1); + else + return; + + addr0 += linesz; + if (likely(addr1 != addr0)) + protected_writeback_scache_line(addr0); + else + return; + + addr1 -= linesz; + if (likely(addr1 > addr0)) + protected_writeback_scache_line(addr0); +} + static void r4k_dma_cache_inv(unsigned long addr, unsigned long size) { /* Catch bad driver code */ @@ -908,6 +933,10 @@ static void r4k_dma_cache_inv(unsigned long addr, unsigned long size) return; preempt_disable(); + + if (current_cpu_type() == CPU_BMIPS5000) + prefetch_cache_inv(addr, size); + if (cpu_has_inclusive_pcaches) { if (size >= scache_size) { if (current_cpu_type() != CPU_LOONGSON64) @@ -1467,17 +1496,17 @@ static void probe_pcache(void) c->icache.ways = 1; } - printk("Primary instruction cache %ldkB, %s, %s, linesize %d bytes.\n", - icache_size >> 10, - c->icache.flags & MIPS_CACHE_VTAG ? "VIVT" : "VIPT", - way_string[c->icache.ways], c->icache.linesz); + pr_info("Primary instruction cache %ldkB, %s, %s, linesize %d bytes.\n", + icache_size >> 10, + c->icache.flags & MIPS_CACHE_VTAG ? "VIVT" : "VIPT", + way_string[c->icache.ways], c->icache.linesz); - printk("Primary data cache %ldkB, %s, %s, %s, linesize %d bytes\n", - dcache_size >> 10, way_string[c->dcache.ways], - (c->dcache.flags & MIPS_CACHE_PINDEX) ? "PIPT" : "VIPT", - (c->dcache.flags & MIPS_CACHE_ALIASES) ? + pr_info("Primary data cache %ldkB, %s, %s, %s, linesize %d bytes\n", + dcache_size >> 10, way_string[c->dcache.ways], + (c->dcache.flags & MIPS_CACHE_PINDEX) ? "PIPT" : "VIPT", + (c->dcache.flags & MIPS_CACHE_ALIASES) ? "cache aliases" : "no aliases", - c->dcache.linesz); + c->dcache.linesz); } static void probe_vcache(void) diff --git a/arch/mips/mm/c-tx39.c b/arch/mips/mm/c-tx39.c index 686867270627..2d479cc7e66b 100644 --- a/arch/mips/mm/c-tx39.c +++ b/arch/mips/mm/c-tx39.c @@ -410,9 +410,9 @@ void tx39_cache_init(void) current_cpu_data.icache.waybit = 0; current_cpu_data.dcache.waybit = 0; - printk("Primary instruction cache %ldkB, linesize %d bytes\n", + pr_info("Primary instruction cache %ldkB, linesize %d bytes\n", icache_size >> 10, current_cpu_data.icache.linesz); - printk("Primary data cache %ldkB, linesize %d bytes\n", + pr_info("Primary data cache %ldkB, linesize %d bytes\n", dcache_size >> 10, current_cpu_data.dcache.linesz); build_clear_page(); diff --git a/arch/mips/mm/tlbex.c b/arch/mips/mm/tlbex.c index 344e6e9ea43b..da407cdc2135 100644 --- a/arch/mips/mm/tlbex.c +++ b/arch/mips/mm/tlbex.c @@ -1480,6 +1480,7 @@ static void build_r4000_tlb_refill_handler(void) static void setup_pw(void) { + unsigned int pwctl; unsigned long pgd_i, pgd_w; #ifndef __PAGETABLE_PMD_FOLDED unsigned long pmd_i, pmd_w; @@ -1506,6 +1507,7 @@ static void setup_pw(void) pte_i = ilog2(_PAGE_GLOBAL); pte_w = 0; + pwctl = 1 << 30; /* Set PWDirExt */ #ifndef __PAGETABLE_PMD_FOLDED write_c0_pwfield(pgd_i << 24 | pmd_i << 12 | pt_i << 6 | pte_i); @@ -1516,8 +1518,9 @@ static void setup_pw(void) #endif #ifdef CONFIG_MIPS_HUGE_TLB_SUPPORT - write_c0_pwctl(1 << 6 | psn); + pwctl |= (1 << 6 | psn); #endif + write_c0_pwctl(pwctl); write_c0_kpgd((long)swapper_pg_dir); kscratch_used_mask |= (1 << 7); /* KScratch6 is used for KPGD */ } diff --git a/arch/mips/mti-malta/malta-int.c b/arch/mips/mti-malta/malta-int.c index a840e0c1642c..03d85b2b3eea 100644 --- a/arch/mips/mti-malta/malta-int.c +++ b/arch/mips/mti-malta/malta-int.c @@ -144,12 +144,6 @@ static irqreturn_t corehi_handler(int irq, void *dev_id) return IRQ_HANDLED; } -static struct irqaction corehi_irqaction = { - .handler = corehi_handler, - .name = "CoreHi", - .flags = IRQF_NO_THREAD, -}; - static msc_irqmap_t msc_irqmap[] __initdata = { {MSC01C_INT_TMR, MSC01_IRQ_EDGE, 0}, {MSC01C_INT_PCI, MSC01_IRQ_LEVEL, 0}, @@ -223,5 +217,7 @@ void __init arch_init_irq(void) corehi_irq = MIPS_CPU_IRQ_BASE + MIPSCPU_INT_COREHI; } - setup_irq(corehi_irq, &corehi_irqaction); + if (request_irq(corehi_irq, corehi_handler, IRQF_NO_THREAD, "CoreHi", + NULL)) + pr_err("Failed to request irq %d (CoreHi)\n", corehi_irq); } diff --git a/arch/mips/netlogic/xlr/fmn.c b/arch/mips/netlogic/xlr/fmn.c index d428e8471eec..d7db1533889a 100644 --- a/arch/mips/netlogic/xlr/fmn.c +++ b/arch/mips/netlogic/xlr/fmn.c @@ -110,12 +110,6 @@ static irqreturn_t fmn_message_handler(int irq, void *data) return IRQ_HANDLED; } -struct irqaction fmn_irqaction = { - .handler = fmn_message_handler, - .flags = IRQF_PERCPU, - .name = "fmn", -}; - void xlr_percpu_fmn_init(void) { struct xlr_fmn_info *cpu_fmn_info; @@ -195,8 +189,9 @@ void nlm_setup_fmn_irq(void) { uint32_t flags; - /* setup irq only once */ - setup_irq(IRQ_FMN, &fmn_irqaction); + /* request irq only once */ + if (request_irq(IRQ_FMN, fmn_message_handler, IRQF_PERCPU, "fmn", NULL)) + pr_err("Failed to request irq %d (fmn)\n", IRQ_FMN); flags = nlm_cop2_enable_irqsave(); nlm_fmn_setup_intr(IRQ_FMN, (1 << nlm_threads_per_core) - 1); diff --git a/arch/mips/pic32/pic32mzda/time.c b/arch/mips/pic32/pic32mzda/time.c index 905ec1d86928..7174e9abbb1b 100644 --- a/arch/mips/pic32/pic32mzda/time.c +++ b/arch/mips/pic32/pic32mzda/time.c @@ -3,11 +3,11 @@ * Joshua Henderson <joshua.henderson@microchip.com> * Copyright (C) 2015 Microchip Technology Inc. All rights reserved. */ -#include <linux/clk-provider.h> #include <linux/clocksource.h> #include <linux/init.h> #include <linux/irqdomain.h> #include <linux/of.h> +#include <linux/of_clk.h> #include <linux/of_irq.h> #include <asm/time.h> @@ -23,7 +23,7 @@ static const struct of_device_id pic32_infra_match[] = { static unsigned int pic32_xlate_core_timer_irq(void) { - static struct device_node *node; + struct device_node *node; unsigned int irq; node = of_find_matching_node(NULL, pic32_infra_match); diff --git a/arch/mips/pistachio/time.c b/arch/mips/pistachio/time.c index 3c9235c7710a..de64751dec40 100644 --- a/arch/mips/pistachio/time.c +++ b/arch/mips/pistachio/time.c @@ -6,10 +6,10 @@ */ #include <linux/clk.h> -#include <linux/clk-provider.h> #include <linux/clocksource.h> #include <linux/init.h> #include <linux/of.h> +#include <linux/of_clk.h> #include <asm/mips-cps.h> #include <asm/time.h> diff --git a/arch/mips/pmcs-msp71xx/msp_irq.c b/arch/mips/pmcs-msp71xx/msp_irq.c index 8d53d7a2ed45..d525cc931d89 100644 --- a/arch/mips/pmcs-msp71xx/msp_irq.c +++ b/arch/mips/pmcs-msp71xx/msp_irq.c @@ -107,18 +107,6 @@ asmlinkage void plat_irq_dispatch(void) do_IRQ(MSP_INT_SW1); } -static struct irqaction cic_cascade_msp = { - .handler = no_action, - .name = "MSP CIC cascade", - .flags = IRQF_NO_THREAD, -}; - -static struct irqaction per_cascade_msp = { - .handler = no_action, - .name = "MSP PER cascade", - .flags = IRQF_NO_THREAD, -}; - void __init arch_init_irq(void) { /* assume we'll be using vectored interrupt mode except in UP mode*/ @@ -142,8 +130,12 @@ void __init arch_init_irq(void) #endif /* CONFIG_MIPS_MT_SMP */ #endif /* CONFIG_MIPS_MT */ /* setup the cascaded interrupts */ - setup_irq(MSP_INT_CIC, &cic_cascade_msp); - setup_irq(MSP_INT_PER, &per_cascade_msp); + if (request_irq(MSP_INT_CIC, no_action, IRQF_NO_THREAD, + "MSP CIC cascade", NULL)) + pr_err("Failed to register MSP CIC cascade interrupt\n"); + if (request_irq(MSP_INT_PER, no_action, IRQF_NO_THREAD, + "MSP PER cascade", NULL)) + pr_err("Failed to register MSP PER cascade interrupt\n"); #else /* @@ -153,7 +145,11 @@ void __init arch_init_irq(void) msp_slp_irq_init(); /* setup the cascaded SLP/PER interrupts */ - setup_irq(MSP_INT_SLP, &cic_cascade_msp); - setup_irq(MSP_INT_PER, &per_cascade_msp); + if (request_irq(MSP_INT_SLP, no_action, IRQF_NO_THREAD, + "MSP CIC cascade", NULL)) + pr_err("Failed to register MSP CIC cascade interrupt\n"); + if (request_irq(MSP_INT_PER, no_action, IRQF_NO_THREAD, + "MSP PER cascade", NULL)) + pr_err("Failed to register MSP PER cascade interrupt\n"); #endif } diff --git a/arch/mips/pmcs-msp71xx/msp_smp.c b/arch/mips/pmcs-msp71xx/msp_smp.c index 8f00d26f2a53..00092e2924ec 100644 --- a/arch/mips/pmcs-msp71xx/msp_smp.c +++ b/arch/mips/pmcs-msp71xx/msp_smp.c @@ -38,21 +38,10 @@ static irqreturn_t ipi_call_interrupt(int irq, void *dev_id) return IRQ_HANDLED; } -static struct irqaction irq_resched = { - .handler = ipi_resched_interrupt, - .flags = IRQF_PERCPU, - .name = "IPI_resched" -}; - -static struct irqaction irq_call = { - .handler = ipi_call_interrupt, - .flags = IRQF_PERCPU, - .name = "IPI_call" -}; - -void __init arch_init_ipiirq(int irq, struct irqaction *action) +void __init arch_init_ipiirq(int irq, const char *name, irq_handler_t handler) { - setup_irq(irq, action); + if (request_irq(irq, handler, IRQF_PERCPU, name, NULL)) + pr_err("Failed to request irq %d (%s)\n", irq, name); irq_set_handler(irq, handle_percpu_irq); } @@ -60,7 +49,8 @@ void __init msp_vsmp_int_init(void) { set_vi_handler(MIPS_CPU_IPI_RESCHED_IRQ, ipi_resched_dispatch); set_vi_handler(MIPS_CPU_IPI_CALL_IRQ, ipi_call_dispatch); - arch_init_ipiirq(MIPS_CPU_IPI_RESCHED_IRQ, &irq_resched); - arch_init_ipiirq(MIPS_CPU_IPI_CALL_IRQ, &irq_call); + arch_init_ipiirq(MIPS_CPU_IPI_RESCHED_IRQ, "IPI_resched", + ipi_resched_interrupt); + arch_init_ipiirq(MIPS_CPU_IPI_CALL_IRQ, "IPI_call", ipi_call_interrupt); } #endif /* CONFIG_MIPS_MT_SMP */ diff --git a/arch/mips/pmcs-msp71xx/msp_time.c b/arch/mips/pmcs-msp71xx/msp_time.c index d83de01f00b8..9c629829f447 100644 --- a/arch/mips/pmcs-msp71xx/msp_time.c +++ b/arch/mips/pmcs-msp71xx/msp_time.c @@ -27,7 +27,6 @@ #define get_current_vpe() \ ((read_c0_tcbind() >> TCBIND_CURVPE_SHIFT) & TCBIND_CURVPE) -static struct irqaction timer_vpe1; static int tim_installed; void __init plat_time_init(void) @@ -77,10 +76,13 @@ void __init plat_time_init(void) unsigned int get_c0_compare_int(void) { + unsigned long flags = IRQF_PERCPU | IRQF_TIMER | IRQF_SHARED; + /* MIPS_MT modes may want timer for second VPE */ if ((get_current_vpe()) && !tim_installed) { - memcpy(&timer_vpe1, &c0_compare_irqaction, sizeof(timer_vpe1)); - setup_irq(MSP_INT_VPE1_TIMER, &timer_vpe1); + if (request_irq(MSP_INT_VPE1_TIMER, c0_compare_interrupt, flags, + "timer", c0_compare_interrupt)) + pr_err("Failed to register timer interrupt\n"); tim_installed++; } diff --git a/arch/mips/ralink/Kconfig b/arch/mips/ralink/Kconfig index 94e9ce994494..35c2ebd8f094 100644 --- a/arch/mips/ralink/Kconfig +++ b/arch/mips/ralink/Kconfig @@ -52,6 +52,7 @@ choice select COMMON_CLK select CLKSRC_MIPS_GIC select HAVE_PCI if PCI_MT7621 + select SOC_BUS endchoice choice diff --git a/arch/mips/ralink/cevt-rt3352.c b/arch/mips/ralink/cevt-rt3352.c index 61a08943eb2f..269d4877d120 100644 --- a/arch/mips/ralink/cevt-rt3352.c +++ b/arch/mips/ralink/cevt-rt3352.c @@ -82,12 +82,6 @@ static struct systick_device systick = { }, }; -static struct irqaction systick_irqaction = { - .handler = systick_interrupt, - .flags = IRQF_PERCPU | IRQF_TIMER, - .dev_id = &systick.dev, -}; - static int systick_shutdown(struct clock_event_device *evt) { struct systick_device *sdev; @@ -95,7 +89,7 @@ static int systick_shutdown(struct clock_event_device *evt) sdev = container_of(evt, struct systick_device, dev); if (sdev->irq_requested) - free_irq(systick.dev.irq, &systick_irqaction); + free_irq(systick.dev.irq, &systick.dev); sdev->irq_requested = 0; iowrite32(0, systick.membase + SYSTICK_CONFIG); @@ -104,12 +98,17 @@ static int systick_shutdown(struct clock_event_device *evt) static int systick_set_oneshot(struct clock_event_device *evt) { + const char *name = systick.dev.name; struct systick_device *sdev; + int irq = systick.dev.irq; sdev = container_of(evt, struct systick_device, dev); - if (!sdev->irq_requested) - setup_irq(systick.dev.irq, &systick_irqaction); + if (!sdev->irq_requested) { + if (request_irq(irq, systick_interrupt, + IRQF_PERCPU | IRQF_TIMER, name, &systick.dev)) + pr_err("Failed to request irq %d (%s)\n", irq, name); + } sdev->irq_requested = 1; iowrite32(CFG_EXT_STK_EN | CFG_CNT_EN, systick.membase + SYSTICK_CONFIG); @@ -125,7 +124,6 @@ static int __init ralink_systick_init(struct device_node *np) if (!systick.membase) return -ENXIO; - systick_irqaction.name = np->name; systick.dev.name = np->name; clockevents_calc_mult_shift(&systick.dev, SYSTICK_FREQ, 60); systick.dev.max_delta_ns = clockevent_delta2ns(0x7fff, &systick.dev); diff --git a/arch/mips/ralink/mt7621.c b/arch/mips/ralink/mt7621.c index 9415be0d57b8..0accb80db709 100644 --- a/arch/mips/ralink/mt7621.c +++ b/arch/mips/ralink/mt7621.c @@ -7,6 +7,8 @@ #include <linux/kernel.h> #include <linux/init.h> +#include <linux/slab.h> +#include <linux/sys_soc.h> #include <asm/mipsregs.h> #include <asm/smp-ops.h> @@ -160,6 +162,33 @@ void __init ralink_of_remap(void) panic("Failed to remap core resources"); } +static void soc_dev_init(struct ralink_soc_info *soc_info, u32 rev) +{ + struct soc_device *soc_dev; + struct soc_device_attribute *soc_dev_attr; + + soc_dev_attr = kzalloc(sizeof(*soc_dev_attr), GFP_KERNEL); + if (!soc_dev_attr) + return; + + soc_dev_attr->soc_id = "mt7621"; + soc_dev_attr->family = "Ralink"; + + if (((rev >> CHIP_REV_VER_SHIFT) & CHIP_REV_VER_MASK) == 1 && + (rev & CHIP_REV_ECO_MASK) == 1) + soc_dev_attr->revision = "E2"; + else + soc_dev_attr->revision = "E1"; + + soc_dev_attr->data = soc_info; + + soc_dev = soc_device_register(soc_dev_attr); + if (IS_ERR(soc_dev)) { + kfree(soc_dev_attr); + return; + } +} + void prom_soc_init(struct ralink_soc_info *soc_info) { void __iomem *sysc = (void __iomem *) KSEG1ADDR(MT7621_SYSC_BASE); @@ -214,6 +243,7 @@ void prom_soc_init(struct ralink_soc_info *soc_info) rt2880_pinmux_data = mt7621_pinmux_data; + soc_dev_init(soc_info, rev); if (!register_cps_smp_ops()) return; diff --git a/arch/mips/ralink/timer-gic.c b/arch/mips/ralink/timer-gic.c index 944fbe0fc741..dcf2a44ac51e 100644 --- a/arch/mips/ralink/timer-gic.c +++ b/arch/mips/ralink/timer-gic.c @@ -8,7 +8,7 @@ #include <linux/init.h> #include <linux/of.h> -#include <linux/clk-provider.h> +#include <linux/of_clk.h> #include <linux/clocksource.h> #include "common.h" diff --git a/arch/mips/sgi-ip22/ip22-eisa.c b/arch/mips/sgi-ip22/ip22-eisa.c index a0a79222ce0b..f3b0e90e0135 100644 --- a/arch/mips/sgi-ip22/ip22-eisa.c +++ b/arch/mips/sgi-ip22/ip22-eisa.c @@ -92,11 +92,6 @@ static irqreturn_t ip22_eisa_intr(int irq, void *dev_id) return IRQ_NONE; } -static struct irqaction eisa_action = { - .handler = ip22_eisa_intr, - .name = "EISA", -}; - int __init ip22_eisa_init(void) { int i, c; @@ -136,9 +131,8 @@ int __init ip22_eisa_init(void) init_i8259_irqs(); - /* Cannot use request_irq because of kmalloc not being ready at such - * an early stage. Yes, I've been bitten... */ - setup_irq(SGI_EISA_IRQ, &eisa_action); + if (request_irq(SGI_EISA_IRQ, ip22_eisa_intr, 0, "EISA", NULL)) + pr_err("Failed to request irq %d (EISA)\n", SGI_EISA_IRQ); EISA_bus = 1; return 0; diff --git a/arch/mips/sgi-ip22/ip22-int.c b/arch/mips/sgi-ip22/ip22-int.c index 3804895fa697..96798a4ab2de 100644 --- a/arch/mips/sgi-ip22/ip22-int.c +++ b/arch/mips/sgi-ip22/ip22-int.c @@ -159,36 +159,7 @@ static void __irq_entry indy_buserror_irq(void) irq_exit(); } -static struct irqaction local0_cascade = { - .handler = no_action, - .flags = IRQF_NO_THREAD, - .name = "local0 cascade", -}; - -static struct irqaction local1_cascade = { - .handler = no_action, - .flags = IRQF_NO_THREAD, - .name = "local1 cascade", -}; - -static struct irqaction buserr = { - .handler = no_action, - .flags = IRQF_NO_THREAD, - .name = "Bus Error", -}; - -static struct irqaction map0_cascade = { - .handler = no_action, - .flags = IRQF_NO_THREAD, - .name = "mapable0 cascade", -}; - #ifdef USE_LIO3_IRQ -static struct irqaction map1_cascade = { - .handler = no_action, - .flags = IRQF_NO_THREAD, - .name = "mapable1 cascade", -}; #define SGI_INTERRUPTS SGINT_END #else #define SGI_INTERRUPTS SGINT_LOCAL3 @@ -322,14 +293,24 @@ void __init arch_init_irq(void) } /* vector handler. this register the IRQ as non-sharable */ - setup_irq(SGI_LOCAL_0_IRQ, &local0_cascade); - setup_irq(SGI_LOCAL_1_IRQ, &local1_cascade); - setup_irq(SGI_BUSERR_IRQ, &buserr); + if (request_irq(SGI_LOCAL_0_IRQ, no_action, IRQF_NO_THREAD, + "local0 cascade", NULL)) + pr_err("Failed to register local0 cascade interrupt\n"); + if (request_irq(SGI_LOCAL_1_IRQ, no_action, IRQF_NO_THREAD, + "local1 cascade", NULL)) + pr_err("Failed to register local1 cascade interrupt\n"); + if (request_irq(SGI_BUSERR_IRQ, no_action, IRQF_NO_THREAD, + "Bus Error", NULL)) + pr_err("Failed to register Bus Error interrupt\n"); /* cascade in cascade. i love Indy ;-) */ - setup_irq(SGI_MAP_0_IRQ, &map0_cascade); + if (request_irq(SGI_MAP_0_IRQ, no_action, IRQF_NO_THREAD, + "mapable0 cascade", NULL)) + pr_err("Failed to register mapable0 cascade interrupt\n"); #ifdef USE_LIO3_IRQ - setup_irq(SGI_MAP_1_IRQ, &map1_cascade); + if (request_irq(SGI_MAP_1_IRQ, no_action, IRQF_NO_THREAD, + "mapable1 cascade", NULL)) + pr_err("Failed to register mapable1 cascade interrupt\n"); #endif #ifdef CONFIG_EISA diff --git a/arch/mips/sgi-ip32/ip32-irq.c b/arch/mips/sgi-ip32/ip32-irq.c index a6a0ff7f5aed..1bbd5bfb5458 100644 --- a/arch/mips/sgi-ip32/ip32-irq.c +++ b/arch/mips/sgi-ip32/ip32-irq.c @@ -111,16 +111,6 @@ static inline void flush_mace_bus(void) extern irqreturn_t crime_memerr_intr(int irq, void *dev_id); extern irqreturn_t crime_cpuerr_intr(int irq, void *dev_id); -static struct irqaction memerr_irq = { - .handler = crime_memerr_intr, - .name = "CRIME memory error", -}; - -static struct irqaction cpuerr_irq = { - .handler = crime_cpuerr_intr, - .name = "CRIME CPU error", -}; - /* * This is for pure CRIME interrupts - ie not MACE. The advantage? * We get to split the register in half and do faster lookups. @@ -497,8 +487,12 @@ void __init arch_init_irq(void) break; } } - setup_irq(CRIME_MEMERR_IRQ, &memerr_irq); - setup_irq(CRIME_CPUERR_IRQ, &cpuerr_irq); + if (request_irq(CRIME_MEMERR_IRQ, crime_memerr_intr, 0, + "CRIME memory error", NULL)) + pr_err("Failed to register CRIME memory error interrupt\n"); + if (request_irq(CRIME_CPUERR_IRQ, crime_cpuerr_intr, 0, + "CRIME CPU error", NULL)) + pr_err("Failed to register CRIME CPU error interrupt\n"); #define ALLINTS (IE_IRQ0 | IE_IRQ1 | IE_IRQ2 | IE_IRQ3 | IE_IRQ4 | IE_IRQ5) change_c0_status(ST0_IM, ALLINTS); diff --git a/arch/mips/sni/a20r.c b/arch/mips/sni/a20r.c index f9407e170476..0ecffb65fd6d 100644 --- a/arch/mips/sni/a20r.c +++ b/arch/mips/sni/a20r.c @@ -222,7 +222,9 @@ void __init sni_a20r_irq_init(void) irq_set_chip_and_handler(i, &a20r_irq_type, handle_level_irq); sni_hwint = a20r_hwint; change_c0_status(ST0_IM, IE_IRQ0); - setup_irq(SNI_A20R_IRQ_BASE + 3, &sni_isa_irq); + if (request_irq(SNI_A20R_IRQ_BASE + 3, sni_isa_irq_handler, 0, "ISA", + NULL)) + pr_err("Failed to register ISA interrupt\n"); } void sni_a20r_init(void) diff --git a/arch/mips/sni/irq.c b/arch/mips/sni/irq.c index ac61b90bcc66..dec89afc9886 100644 --- a/arch/mips/sni/irq.c +++ b/arch/mips/sni/irq.c @@ -27,7 +27,7 @@ asmlinkage void plat_irq_dispatch(void) } /* ISA irq handler */ -static irqreturn_t sni_isa_irq_handler(int dummy, void *p) +irqreturn_t sni_isa_irq_handler(int dummy, void *p) { int irq; @@ -39,12 +39,6 @@ static irqreturn_t sni_isa_irq_handler(int dummy, void *p) return IRQ_HANDLED; } -struct irqaction sni_isa_irq = { - .handler = sni_isa_irq_handler, - .name = "ISA", - .flags = IRQF_SHARED -}; - /* * On systems with i8259-style interrupt controllers we assume for * driver compatibility reasons interrupts 0 - 15 to be the i8295 diff --git a/arch/mips/sni/pcit.c b/arch/mips/sni/pcit.c index 05bb51676e82..b331fe22c529 100644 --- a/arch/mips/sni/pcit.c +++ b/arch/mips/sni/pcit.c @@ -244,7 +244,9 @@ void __init sni_pcit_irq_init(void) *(volatile u32 *)SNI_PCIT_INT_REG = 0; sni_hwint = sni_pcit_hwint; change_c0_status(ST0_IM, IE_IRQ1); - setup_irq(SNI_PCIT_INT_START + 6, &sni_isa_irq); + if (request_irq(SNI_PCIT_INT_START + 6, sni_isa_irq_handler, 0, "ISA", + NULL)) + pr_err("Failed to register ISA interrupt\n"); } void __init sni_pcit_cplus_irq_init(void) @@ -257,7 +259,9 @@ void __init sni_pcit_cplus_irq_init(void) *(volatile u32 *)SNI_PCIT_INT_REG = 0x40000000; sni_hwint = sni_pcit_hwint_cplus; change_c0_status(ST0_IM, IE_IRQ0); - setup_irq(MIPS_CPU_IRQ_BASE + 3, &sni_isa_irq); + if (request_irq(MIPS_CPU_IRQ_BASE + 3, sni_isa_irq_handler, 0, "ISA", + NULL)) + pr_err("Failed to register ISA interrupt\n"); } void __init sni_pcit_init(void) diff --git a/arch/mips/sni/rm200.c b/arch/mips/sni/rm200.c index f6fa9afcbfd3..d84744ca871d 100644 --- a/arch/mips/sni/rm200.c +++ b/arch/mips/sni/rm200.c @@ -356,11 +356,6 @@ void sni_rm200_init_8259A(void) /* * IRQ2 is cascade interrupt to second interrupt controller */ -static struct irqaction sni_rm200_irq2 = { - .handler = no_action, - .name = "cascade", - .flags = IRQF_NO_THREAD, -}; static struct resource sni_rm200_pic1_resource = { .name = "onboard ISA pic1", @@ -389,12 +384,6 @@ static irqreturn_t sni_rm200_i8259A_irq_handler(int dummy, void *p) return IRQ_HANDLED; } -struct irqaction sni_rm200_i8259A_irq = { - .handler = sni_rm200_i8259A_irq_handler, - .name = "onboard ISA", - .flags = IRQF_SHARED -}; - void __init sni_rm200_i8259_irqs(void) { int i; @@ -417,7 +406,9 @@ void __init sni_rm200_i8259_irqs(void) irq_set_chip_and_handler(i, &sni_rm200_i8259A_chip, handle_level_irq); - setup_irq(RM200_I8259A_IRQ_BASE + PIC_CASCADE_IR, &sni_rm200_irq2); + if (request_irq(RM200_I8259A_IRQ_BASE + PIC_CASCADE_IR, no_action, + IRQF_NO_THREAD, "cascade", NULL)) + pr_err("Failed to register cascade interrupt\n"); } @@ -481,8 +472,12 @@ void __init sni_rm200_irq_init(void) irq_set_chip_and_handler(i, &rm200_irq_type, handle_level_irq); sni_hwint = sni_rm200_hwint; change_c0_status(ST0_IM, IE_IRQ0); - setup_irq(SNI_RM200_INT_START + 0, &sni_rm200_i8259A_irq); - setup_irq(SNI_RM200_INT_START + 1, &sni_isa_irq); + if (request_irq(SNI_RM200_INT_START + 0, sni_rm200_i8259A_irq_handler, + 0, "onboard ISA", NULL)) + pr_err("Failed to register onboard ISA interrupt\n"); + if (request_irq(SNI_RM200_INT_START + 1, sni_isa_irq_handler, 0, "ISA", + NULL)) + pr_err("Failed to register ISA interrupt\n"); } void __init sni_rm200_init(void) diff --git a/arch/mips/sni/time.c b/arch/mips/sni/time.c index dbace1f3e1a9..240bb68ec247 100644 --- a/arch/mips/sni/time.c +++ b/arch/mips/sni/time.c @@ -55,12 +55,6 @@ static irqreturn_t a20r_interrupt(int irq, void *dev_id) return IRQ_HANDLED; } -static struct irqaction a20r_irqaction = { - .handler = a20r_interrupt, - .flags = IRQF_PERCPU | IRQF_TIMER, - .name = "a20r-timer", -}; - /* * a20r platform uses 2 counters to divide the input frequency. * Counter 2 output is connected to Counter 0 & 1 input. @@ -68,13 +62,13 @@ static struct irqaction a20r_irqaction = { static void __init sni_a20r_timer_setup(void) { struct clock_event_device *cd = &a20r_clockevent_device; - struct irqaction *action = &a20r_irqaction; unsigned int cpu = smp_processor_id(); cd->cpumask = cpumask_of(cpu); clockevents_register_device(cd); - action->dev_id = cd; - setup_irq(SNI_A20R_IRQ_TIMER, &a20r_irqaction); + if (request_irq(SNI_A20R_IRQ_TIMER, a20r_interrupt, + IRQF_PERCPU | IRQF_TIMER, "a20r-timer", cd)) + pr_err("Failed to register a20r-timer interrupt\n"); } #define SNI_8254_TICK_RATE 1193182UL diff --git a/arch/mips/vr41xx/common/irq.c b/arch/mips/vr41xx/common/irq.c index 7a826fbf9060..8f68446ff2d9 100644 --- a/arch/mips/vr41xx/common/irq.c +++ b/arch/mips/vr41xx/common/irq.c @@ -17,12 +17,6 @@ typedef struct irq_cascade { static irq_cascade_t irq_cascade[NR_IRQS] __cacheline_aligned; -static struct irqaction cascade_irqaction = { - .handler = no_action, - .name = "cascade", - .flags = IRQF_NO_THREAD, -}; - int cascade_irq(unsigned int irq, int (*get_irq)(unsigned int)) { int retval = 0; @@ -36,7 +30,8 @@ int cascade_irq(unsigned int irq, int (*get_irq)(unsigned int)) irq_cascade[irq].get_irq = get_irq; if (get_irq != NULL) { - retval = setup_irq(irq, &cascade_irqaction); + retval = request_irq(irq, no_action, IRQF_NO_THREAD, + "cascade", NULL); if (retval < 0) irq_cascade[irq].get_irq = NULL; } diff --git a/arch/nds32/include/asm/futex.h b/arch/nds32/include/asm/futex.h index 5213c65c2e0b..4223f473bd36 100644 --- a/arch/nds32/include/asm/futex.h +++ b/arch/nds32/include/asm/futex.h @@ -66,8 +66,8 @@ arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr) { int oldval = 0, ret; - - pagefault_disable(); + if (!access_ok(uaddr, sizeof(u32))) + return -EFAULT; switch (op) { case FUTEX_OP_SET: __futex_atomic_op("move %0, %3", ret, oldval, tmp, uaddr, @@ -93,8 +93,6 @@ arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr) ret = -ENOSYS; } - pagefault_enable(); - if (!ret) *oval = oldval; diff --git a/arch/nds32/include/asm/uaccess.h b/arch/nds32/include/asm/uaccess.h index 8916ad9f9f13..3a9219f53ee0 100644 --- a/arch/nds32/include/asm/uaccess.h +++ b/arch/nds32/include/asm/uaccess.h @@ -11,7 +11,6 @@ #include <asm/errno.h> #include <asm/memory.h> #include <asm/types.h> -#include <linux/mm.h> #define __asmeq(x, y) ".ifnc " x "," y " ; .err ; .endif\n\t" diff --git a/arch/openrisc/include/asm/futex.h b/arch/openrisc/include/asm/futex.h index fe894e6331ae..865e9cd0d97b 100644 --- a/arch/openrisc/include/asm/futex.h +++ b/arch/openrisc/include/asm/futex.h @@ -35,7 +35,8 @@ arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr) { int oldval = 0, ret; - pagefault_disable(); + if (!access_ok(uaddr, sizeof(u32))) + return -EFAULT; switch (op) { case FUTEX_OP_SET: @@ -57,8 +58,6 @@ arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr) ret = -ENOSYS; } - pagefault_enable(); - if (!ret) *oval = oldval; diff --git a/arch/parisc/Kconfig b/arch/parisc/Kconfig index 71034b54d74e..3801a2ef9bca 100644 --- a/arch/parisc/Kconfig +++ b/arch/parisc/Kconfig @@ -79,6 +79,11 @@ config MMU config STACK_GROWSUP def_bool y +config ARCH_DEFCONFIG + string + default "arch/parisc/configs/generic-32bit_defconfig" if !64BIT + default "arch/parisc/configs/generic-64bit_defconfig" if 64BIT + config GENERIC_LOCKBREAK bool default y diff --git a/arch/parisc/Makefile b/arch/parisc/Makefile index dca8f2de8cf5..628cd8bb7ad8 100644 --- a/arch/parisc/Makefile +++ b/arch/parisc/Makefile @@ -34,6 +34,13 @@ CC_ARCHES = hppa hppa2.0 hppa1.1 LD_BFD := elf32-hppa-linux endif +# select defconfig based on actual architecture +ifeq ($(shell uname -m),parisc64) + KBUILD_DEFCONFIG := generic-64bit_defconfig +else + KBUILD_DEFCONFIG := generic-32bit_defconfig +endif + export LD_BFD ifneq ($(SUBARCH),$(UTS_MACHINE)) diff --git a/arch/parisc/include/asm/futex.h b/arch/parisc/include/asm/futex.h index d2c3e4106851..c459f656c8c3 100644 --- a/arch/parisc/include/asm/futex.h +++ b/arch/parisc/include/asm/futex.h @@ -40,7 +40,6 @@ arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr) u32 tmp; _futex_spin_lock_irqsave(uaddr, &flags); - pagefault_disable(); ret = -EFAULT; if (unlikely(get_user(oldval, uaddr) != 0)) @@ -73,7 +72,6 @@ arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr) ret = -EFAULT; out_pagefault_enable: - pagefault_enable(); _futex_spin_unlock_irqrestore(uaddr, &flags); if (!ret) diff --git a/arch/parisc/kernel/processor.c b/arch/parisc/kernel/processor.c index 13f771f74ee3..7f2d0c0ecc80 100644 --- a/arch/parisc/kernel/processor.c +++ b/arch/parisc/kernel/processor.c @@ -212,7 +212,7 @@ static int __init processor_probe(struct parisc_device *dev) #ifdef CONFIG_SMP if (cpuid) { set_cpu_present(cpuid, true); - cpu_up(cpuid); + add_cpu(cpuid); } #endif diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 497b7d0b2d7e..6f40af294685 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -182,6 +182,7 @@ config PPC select HAVE_STACKPROTECTOR if PPC64 && $(cc-option,-mstack-protector-guard=tls -mstack-protector-guard-reg=r13) select HAVE_STACKPROTECTOR if PPC32 && $(cc-option,-mstack-protector-guard=tls -mstack-protector-guard-reg=r2) select HAVE_CONTEXT_TRACKING if PPC64 + select HAVE_TIF_NOHZ if PPC64 select HAVE_COPY_THREAD_TLS select HAVE_DEBUG_KMEMLEAK select HAVE_DEBUG_STACKOVERFLOW diff --git a/arch/powerpc/include/asm/futex.h b/arch/powerpc/include/asm/futex.h index bc7d9d06a6d9..f187bb5e524e 100644 --- a/arch/powerpc/include/asm/futex.h +++ b/arch/powerpc/include/asm/futex.h @@ -35,8 +35,9 @@ static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval, { int oldval = 0, ret; + if (!access_ok(uaddr, sizeof(u32))) + return -EFAULT; allow_read_write_user(uaddr, uaddr, sizeof(*uaddr)); - pagefault_disable(); switch (op) { case FUTEX_OP_SET: @@ -58,8 +59,6 @@ static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval, ret = -ENOSYS; } - pagefault_enable(); - *oval = oldval; prevent_read_write_user(uaddr, uaddr, sizeof(*uaddr)); diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c index e745abc5457a..245be4fafe13 100644 --- a/arch/powerpc/kernel/cputable.c +++ b/arch/powerpc/kernel/cputable.c @@ -2193,11 +2193,13 @@ static struct cpu_spec * __init setup_cpu_spec(unsigned long offset, * oprofile_cpu_type already has a value, then we are * possibly overriding a real PVR with a logical one, * and, in that case, keep the current value for - * oprofile_cpu_type. + * oprofile_cpu_type. Futhermore, let's ensure that the + * fix for the PMAO bug is enabled on compatibility mode. */ if (old.oprofile_cpu_type != NULL) { t->oprofile_cpu_type = old.oprofile_cpu_type; t->oprofile_type = old.oprofile_type; + t->cpu_features |= old.cpu_features & CPU_FTR_PMAO_BUG; } } diff --git a/arch/powerpc/kernel/hw_breakpoint.c b/arch/powerpc/kernel/hw_breakpoint.c index 2462cd7c565c..d0854320bb50 100644 --- a/arch/powerpc/kernel/hw_breakpoint.c +++ b/arch/powerpc/kernel/hw_breakpoint.c @@ -331,11 +331,13 @@ int hw_breakpoint_handler(struct die_args *args) } info->type &= ~HW_BRK_TYPE_EXTRANEOUS_IRQ; - if (!dar_within_range(regs->dar, info)) - info->type |= HW_BRK_TYPE_EXTRANEOUS_IRQ; - - if (!IS_ENABLED(CONFIG_PPC_8xx) && !stepping_handler(regs, bp, info)) - goto out; + if (IS_ENABLED(CONFIG_PPC_8xx)) { + if (!dar_within_range(regs->dar, info)) + info->type |= HW_BRK_TYPE_EXTRANEOUS_IRQ; + } else { + if (!stepping_handler(regs, bp, info)) + goto out; + } /* * As a policy, the callback is invoked in a 'trigger-after-execute' diff --git a/arch/powerpc/kernel/vmlinux.lds.S b/arch/powerpc/kernel/vmlinux.lds.S index b4c89a1acebb..a32d478a7f41 100644 --- a/arch/powerpc/kernel/vmlinux.lds.S +++ b/arch/powerpc/kernel/vmlinux.lds.S @@ -303,6 +303,12 @@ SECTIONS *(.branch_lt) } +#ifdef CONFIG_DEBUG_INFO_BTF + .BTF : AT(ADDR(.BTF) - LOAD_OFFSET) { + *(.BTF) + } +#endif + .opd : AT(ADDR(.opd) - LOAD_OFFSET) { __start_opd = .; KEEP(*(.opd)) diff --git a/arch/powerpc/kexec/core_64.c b/arch/powerpc/kexec/core_64.c index 04a7cba58eff..b4184092172a 100644 --- a/arch/powerpc/kexec/core_64.c +++ b/arch/powerpc/kexec/core_64.c @@ -212,7 +212,7 @@ static void wake_offline_cpus(void) if (!cpu_online(cpu)) { printk(KERN_INFO "kexec: Waking offline cpu %d.\n", cpu); - WARN_ON(cpu_up(cpu)); + WARN_ON(add_cpu(cpu)); } } } diff --git a/arch/powerpc/kvm/book3s_pr.c b/arch/powerpc/kvm/book3s_pr.c index 729a0f12a752..db3a87319642 100644 --- a/arch/powerpc/kvm/book3s_pr.c +++ b/arch/powerpc/kvm/book3s_pr.c @@ -1817,6 +1817,7 @@ static void kvmppc_core_vcpu_free_pr(struct kvm_vcpu *vcpu) { struct kvmppc_vcpu_book3s *vcpu_book3s = to_book3s(vcpu); + kvmppc_mmu_destroy_pr(vcpu); free_page((unsigned long)vcpu->arch.shared & PAGE_MASK); #ifdef CONFIG_KVM_BOOK3S_32_HANDLER kfree(vcpu->arch.shadow_vcpu); diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c index 1af96fb5dc6f..302e9dccdd6d 100644 --- a/arch/powerpc/kvm/powerpc.c +++ b/arch/powerpc/kvm/powerpc.c @@ -759,7 +759,6 @@ int kvm_arch_vcpu_create(struct kvm_vcpu *vcpu) return 0; out_vcpu_uninit: - kvmppc_mmu_destroy(vcpu); kvmppc_subarch_vcpu_uninit(vcpu); return err; } @@ -792,7 +791,6 @@ void kvm_arch_vcpu_destroy(struct kvm_vcpu *vcpu) kvmppc_core_vcpu_free(vcpu); - kvmppc_mmu_destroy(vcpu); kvmppc_subarch_vcpu_uninit(vcpu); } diff --git a/arch/powerpc/mm/kasan/kasan_init_32.c b/arch/powerpc/mm/kasan/kasan_init_32.c index db5664dde5ff..d2bed3fcb719 100644 --- a/arch/powerpc/mm/kasan/kasan_init_32.c +++ b/arch/powerpc/mm/kasan/kasan_init_32.c @@ -120,12 +120,6 @@ static void __init kasan_unmap_early_shadow_vmalloc(void) unsigned long k_cur; phys_addr_t pa = __pa(kasan_early_shadow_page); - if (!early_mmu_has_feature(MMU_FTR_HPTE_TABLE)) { - int ret = kasan_init_shadow_page_tables(k_start, k_end); - - if (ret) - panic("kasan: kasan_init_shadow_page_tables() failed"); - } for (k_cur = k_start & PAGE_MASK; k_cur < k_end; k_cur += PAGE_SIZE) { pmd_t *pmd = pmd_offset(pud_offset(pgd_offset_k(k_cur), k_cur), k_cur); pte_t *ptep = pte_offset_kernel(pmd, k_cur); @@ -143,7 +137,8 @@ void __init kasan_mmu_init(void) int ret; struct memblock_region *reg; - if (early_mmu_has_feature(MMU_FTR_HPTE_TABLE)) { + if (early_mmu_has_feature(MMU_FTR_HPTE_TABLE) || + IS_ENABLED(CONFIG_KASAN_VMALLOC)) { ret = kasan_init_shadow_page_tables(KASAN_SHADOW_START, KASAN_SHADOW_END); if (ret) diff --git a/arch/powerpc/mm/mem.c b/arch/powerpc/mm/mem.c index ef7b1119b2e2..1c07d5a3f543 100644 --- a/arch/powerpc/mm/mem.c +++ b/arch/powerpc/mm/mem.c @@ -373,7 +373,9 @@ static inline bool flush_coherent_icache(unsigned long addr) */ if (cpu_has_feature(CPU_FTR_COHERENT_ICACHE)) { mb(); /* sync */ + allow_read_from_user((const void __user *)addr, L1_CACHE_BYTES); icbi((void *)addr); + prevent_read_from_user((const void __user *)addr, L1_CACHE_BYTES); mb(); /* sync */ isync(); return true; diff --git a/arch/powerpc/perf/core-book3s.c b/arch/powerpc/perf/core-book3s.c index 3086055bf681..3dcfecf858f3 100644 --- a/arch/powerpc/perf/core-book3s.c +++ b/arch/powerpc/perf/core-book3s.c @@ -518,6 +518,7 @@ static void power_pmu_bhrb_read(struct perf_event *event, struct cpu_hw_events * } } cpuhw->bhrb_stack.nr = u_index; + cpuhw->bhrb_stack.hw_idx = -1ULL; return; } diff --git a/arch/powerpc/platforms/ps3/device-init.c b/arch/powerpc/platforms/ps3/device-init.c index 2735ec90414d..e87360a0fb40 100644 --- a/arch/powerpc/platforms/ps3/device-init.c +++ b/arch/powerpc/platforms/ps3/device-init.c @@ -13,6 +13,7 @@ #include <linux/init.h> #include <linux/slab.h> #include <linux/reboot.h> +#include <linux/rcuwait.h> #include <asm/firmware.h> #include <asm/lv1call.h> @@ -670,7 +671,8 @@ struct ps3_notification_device { spinlock_t lock; u64 tag; u64 lv1_status; - struct completion done; + struct rcuwait wait; + bool done; }; enum ps3_notify_type { @@ -712,7 +714,8 @@ static irqreturn_t ps3_notification_interrupt(int irq, void *data) pr_debug("%s:%u: completed, status 0x%llx\n", __func__, __LINE__, status); dev->lv1_status = status; - complete(&dev->done); + dev->done = true; + rcuwait_wake_up(&dev->wait); } spin_unlock(&dev->lock); return IRQ_HANDLED; @@ -725,12 +728,12 @@ static int ps3_notification_read_write(struct ps3_notification_device *dev, unsigned long flags; int res; - init_completion(&dev->done); spin_lock_irqsave(&dev->lock, flags); res = write ? lv1_storage_write(dev->sbd.dev_id, 0, 0, 1, 0, lpar, &dev->tag) : lv1_storage_read(dev->sbd.dev_id, 0, 0, 1, 0, lpar, &dev->tag); + dev->done = false; spin_unlock_irqrestore(&dev->lock, flags); if (res) { pr_err("%s:%u: %s failed %d\n", __func__, __LINE__, op, res); @@ -738,14 +741,10 @@ static int ps3_notification_read_write(struct ps3_notification_device *dev, } pr_debug("%s:%u: notification %s issued\n", __func__, __LINE__, op); - res = wait_event_interruptible(dev->done.wait, - dev->done.done || kthread_should_stop()); + rcuwait_wait_event(&dev->wait, dev->done || kthread_should_stop(), TASK_IDLE); + if (kthread_should_stop()) res = -EINTR; - if (res) { - pr_debug("%s:%u: interrupted %s\n", __func__, __LINE__, op); - return res; - } if (dev->lv1_status) { pr_err("%s:%u: %s not completed, status 0x%llx\n", __func__, @@ -810,6 +809,7 @@ static int ps3_probe_thread(void *data) } spin_lock_init(&dev.lock); + rcuwait_init(&dev.wait); res = request_irq(irq, ps3_notification_interrupt, 0, "ps3_notification", &dev); diff --git a/arch/riscv/Kconfig b/arch/riscv/Kconfig index 73f029eae0cc..cd5db57bfd41 100644 --- a/arch/riscv/Kconfig +++ b/arch/riscv/Kconfig @@ -50,7 +50,6 @@ config RISCV select PCI_DOMAINS_GENERIC if PCI select PCI_MSI if PCI select RISCV_TIMER - select UACCESS_MEMCPY if !MMU select GENERIC_IRQ_MULTI_HANDLER select GENERIC_ARCH_TOPOLOGY if SMP select ARCH_HAS_PTE_SPECIAL @@ -121,6 +120,7 @@ config ARCH_FLATMEM_ENABLE config ARCH_SPARSEMEM_ENABLE def_bool y + depends on MMU select SPARSEMEM_VMEMMAP_ENABLE config ARCH_SELECT_MEMORY_MODEL diff --git a/arch/riscv/Kconfig.socs b/arch/riscv/Kconfig.socs index d325b67d00df..a131174a0a77 100644 --- a/arch/riscv/Kconfig.socs +++ b/arch/riscv/Kconfig.socs @@ -10,4 +10,14 @@ config SOC_SIFIVE help This enables support for SiFive SoC platform hardware. +config SOC_VIRT + bool "QEMU Virt Machine" + select POWER_RESET_SYSCON + select POWER_RESET_SYSCON_POWEROFF + select GOLDFISH + select RTC_DRV_GOLDFISH + select SIFIVE_PLIC + help + This enables support for QEMU Virt Machine. + endmenu diff --git a/arch/riscv/Makefile b/arch/riscv/Makefile index b9009a2fbaf5..259cb53d7f20 100644 --- a/arch/riscv/Makefile +++ b/arch/riscv/Makefile @@ -13,8 +13,10 @@ LDFLAGS_vmlinux := ifeq ($(CONFIG_DYNAMIC_FTRACE),y) LDFLAGS_vmlinux := --no-relax endif -KBUILD_AFLAGS_MODULE += -fPIC -KBUILD_CFLAGS_MODULE += -fPIC + +ifeq ($(CONFIG_64BIT)$(CONFIG_CMODEL_MEDLOW),yy) +KBUILD_CFLAGS_MODULE += -mcmodel=medany +endif export BITS ifeq ($(CONFIG_ARCH_RV64I),y) diff --git a/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts b/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts index 609198cb1163..4a2729f5ca3f 100644 --- a/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts +++ b/arch/riscv/boot/dts/sifive/hifive-unleashed-a00.dts @@ -2,6 +2,7 @@ /* Copyright (c) 2018-2019 SiFive, Inc */ #include "fu540-c000.dtsi" +#include <dt-bindings/gpio/gpio.h> /* Clock frequency (in Hz) of the PCB crystal for rtcclk */ #define RTCCLK_FREQ 1000000 @@ -41,6 +42,10 @@ clock-frequency = <RTCCLK_FREQ>; clock-output-names = "rtcclk"; }; + gpio-restart { + compatible = "gpio-restart"; + gpios = <&gpio 10 GPIO_ACTIVE_LOW>; + }; }; &uart0 { diff --git a/arch/riscv/configs/defconfig b/arch/riscv/configs/defconfig index e2ff95cb3390..2557c5372a25 100644 --- a/arch/riscv/configs/defconfig +++ b/arch/riscv/configs/defconfig @@ -15,6 +15,7 @@ CONFIG_BLK_DEV_INITRD=y CONFIG_EXPERT=y CONFIG_BPF_SYSCALL=y CONFIG_SOC_SIFIVE=y +CONFIG_SOC_VIRT=y CONFIG_SMP=y CONFIG_MODULES=y CONFIG_MODULE_UNLOAD=y @@ -63,6 +64,7 @@ CONFIG_HW_RANDOM_VIRTIO=y CONFIG_SPI=y CONFIG_SPI_SIFIVE=y # CONFIG_PTP_1588_CLOCK is not set +CONFIG_POWER_RESET=y CONFIG_DRM=y CONFIG_DRM_RADEON=y CONFIG_DRM_VIRTIO_GPU=y @@ -78,6 +80,7 @@ CONFIG_USB_STORAGE=y CONFIG_USB_UAS=y CONFIG_MMC=y CONFIG_MMC_SPI=y +CONFIG_RTC_CLASS=y CONFIG_VIRTIO_PCI=y CONFIG_VIRTIO_BALLOON=y CONFIG_VIRTIO_INPUT=y @@ -102,13 +105,13 @@ CONFIG_CRYPTO_DEV_VIRTIO=y CONFIG_PRINTK_TIME=y CONFIG_DEBUG_FS=y CONFIG_DEBUG_PAGEALLOC=y +CONFIG_SCHED_STACK_END_CHECK=y CONFIG_DEBUG_VM=y CONFIG_DEBUG_VM_PGFLAGS=y CONFIG_DEBUG_MEMORY_INIT=y CONFIG_DEBUG_PER_CPU_MAPS=y CONFIG_SOFTLOCKUP_DETECTOR=y CONFIG_WQ_WATCHDOG=y -CONFIG_SCHED_STACK_END_CHECK=y CONFIG_DEBUG_TIMEKEEPING=y CONFIG_DEBUG_RT_MUTEXES=y CONFIG_DEBUG_SPINLOCK=y diff --git a/arch/riscv/configs/rv32_defconfig b/arch/riscv/configs/rv32_defconfig index eb519407c841..0292879a9690 100644 --- a/arch/riscv/configs/rv32_defconfig +++ b/arch/riscv/configs/rv32_defconfig @@ -14,6 +14,7 @@ CONFIG_CHECKPOINT_RESTORE=y CONFIG_BLK_DEV_INITRD=y CONFIG_EXPERT=y CONFIG_BPF_SYSCALL=y +CONFIG_SOC_VIRT=y CONFIG_ARCH_RV32I=y CONFIG_SMP=y CONFIG_MODULES=y @@ -61,6 +62,7 @@ CONFIG_VIRTIO_CONSOLE=y CONFIG_HW_RANDOM=y CONFIG_HW_RANDOM_VIRTIO=y # CONFIG_PTP_1588_CLOCK is not set +CONFIG_POWER_RESET=y CONFIG_DRM=y CONFIG_DRM_RADEON=y CONFIG_DRM_VIRTIO_GPU=y @@ -74,13 +76,13 @@ CONFIG_USB_OHCI_HCD=y CONFIG_USB_OHCI_HCD_PLATFORM=y CONFIG_USB_STORAGE=y CONFIG_USB_UAS=y +CONFIG_RTC_CLASS=y CONFIG_VIRTIO_PCI=y CONFIG_VIRTIO_BALLOON=y CONFIG_VIRTIO_INPUT=y CONFIG_VIRTIO_MMIO=y CONFIG_RPMSG_CHAR=y CONFIG_RPMSG_VIRTIO=y -CONFIG_SIFIVE_PLIC=y CONFIG_EXT4_FS=y CONFIG_EXT4_FS_POSIX_ACL=y CONFIG_AUTOFS4_FS=y @@ -99,13 +101,13 @@ CONFIG_CRYPTO_DEV_VIRTIO=y CONFIG_PRINTK_TIME=y CONFIG_DEBUG_FS=y CONFIG_DEBUG_PAGEALLOC=y +CONFIG_SCHED_STACK_END_CHECK=y CONFIG_DEBUG_VM=y CONFIG_DEBUG_VM_PGFLAGS=y CONFIG_DEBUG_MEMORY_INIT=y CONFIG_DEBUG_PER_CPU_MAPS=y CONFIG_SOFTLOCKUP_DETECTOR=y CONFIG_WQ_WATCHDOG=y -CONFIG_SCHED_STACK_END_CHECK=y CONFIG_DEBUG_TIMEKEEPING=y CONFIG_DEBUG_RT_MUTEXES=y CONFIG_DEBUG_SPINLOCK=y diff --git a/arch/riscv/include/asm/clint.h b/arch/riscv/include/asm/clint.h index 6eaa2eedd694..a279b17a6aad 100644 --- a/arch/riscv/include/asm/clint.h +++ b/arch/riscv/include/asm/clint.h @@ -15,12 +15,12 @@ static inline void clint_send_ipi_single(unsigned long hartid) writel(1, clint_ipi_base + hartid); } -static inline void clint_send_ipi_mask(const struct cpumask *hartid_mask) +static inline void clint_send_ipi_mask(const struct cpumask *mask) { - int hartid; + int cpu; - for_each_cpu(hartid, hartid_mask) - clint_send_ipi_single(hartid); + for_each_cpu(cpu, mask) + clint_send_ipi_single(cpuid_to_hartid_map(cpu)); } static inline void clint_clear_ipi(unsigned long hartid) diff --git a/arch/riscv/include/asm/futex.h b/arch/riscv/include/asm/futex.h index fdfaf7f3df7c..1b00badb9f87 100644 --- a/arch/riscv/include/asm/futex.h +++ b/arch/riscv/include/asm/futex.h @@ -46,7 +46,8 @@ arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr) { int oldval = 0, ret = 0; - pagefault_disable(); + if (!access_ok(uaddr, sizeof(u32))) + return -EFAULT; switch (op) { case FUTEX_OP_SET: @@ -73,8 +74,6 @@ arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr) ret = -ENOSYS; } - pagefault_enable(); - if (!ret) *oval = oldval; diff --git a/arch/riscv/include/asm/pgtable.h b/arch/riscv/include/asm/pgtable.h index e43041519edd..393f2014dfee 100644 --- a/arch/riscv/include/asm/pgtable.h +++ b/arch/riscv/include/asm/pgtable.h @@ -19,6 +19,47 @@ #include <asm/tlbflush.h> #include <linux/mm_types.h> +#ifdef CONFIG_MMU + +#define VMALLOC_SIZE (KERN_VIRT_SIZE >> 1) +#define VMALLOC_END (PAGE_OFFSET - 1) +#define VMALLOC_START (PAGE_OFFSET - VMALLOC_SIZE) + +#define BPF_JIT_REGION_SIZE (SZ_128M) +#define BPF_JIT_REGION_START (PAGE_OFFSET - BPF_JIT_REGION_SIZE) +#define BPF_JIT_REGION_END (VMALLOC_END) + +/* + * Roughly size the vmemmap space to be large enough to fit enough + * struct pages to map half the virtual address space. Then + * position vmemmap directly below the VMALLOC region. + */ +#define VMEMMAP_SHIFT \ + (CONFIG_VA_BITS - PAGE_SHIFT - 1 + STRUCT_PAGE_MAX_SHIFT) +#define VMEMMAP_SIZE BIT(VMEMMAP_SHIFT) +#define VMEMMAP_END (VMALLOC_START - 1) +#define VMEMMAP_START (VMALLOC_START - VMEMMAP_SIZE) + +/* + * Define vmemmap for pfn_to_page & page_to_pfn calls. Needed if kernel + * is configured with CONFIG_SPARSEMEM_VMEMMAP enabled. + */ +#define vmemmap ((struct page *)VMEMMAP_START) + +#define PCI_IO_SIZE SZ_16M +#define PCI_IO_END VMEMMAP_START +#define PCI_IO_START (PCI_IO_END - PCI_IO_SIZE) + +#define FIXADDR_TOP PCI_IO_START +#ifdef CONFIG_64BIT +#define FIXADDR_SIZE PMD_SIZE +#else +#define FIXADDR_SIZE PGDIR_SIZE +#endif +#define FIXADDR_START (FIXADDR_TOP - FIXADDR_SIZE) + +#endif + #ifdef CONFIG_64BIT #include <asm/pgtable-64.h> #else @@ -90,31 +131,6 @@ extern pgd_t swapper_pg_dir[]; #define __S110 PAGE_SHARED_EXEC #define __S111 PAGE_SHARED_EXEC -#define VMALLOC_SIZE (KERN_VIRT_SIZE >> 1) -#define VMALLOC_END (PAGE_OFFSET - 1) -#define VMALLOC_START (PAGE_OFFSET - VMALLOC_SIZE) - -#define BPF_JIT_REGION_SIZE (SZ_128M) -#define BPF_JIT_REGION_START (PAGE_OFFSET - BPF_JIT_REGION_SIZE) -#define BPF_JIT_REGION_END (VMALLOC_END) - -/* - * Roughly size the vmemmap space to be large enough to fit enough - * struct pages to map half the virtual address space. Then - * position vmemmap directly below the VMALLOC region. - */ -#define VMEMMAP_SHIFT \ - (CONFIG_VA_BITS - PAGE_SHIFT - 1 + STRUCT_PAGE_MAX_SHIFT) -#define VMEMMAP_SIZE BIT(VMEMMAP_SHIFT) -#define VMEMMAP_END (VMALLOC_START - 1) -#define VMEMMAP_START (VMALLOC_START - VMEMMAP_SIZE) - -/* - * Define vmemmap for pfn_to_page & page_to_pfn calls. Needed if kernel - * is configured with CONFIG_SPARSEMEM_VMEMMAP enabled. - */ -#define vmemmap ((struct page *)VMEMMAP_START) - static inline int pmd_present(pmd_t pmd) { return (pmd_val(pmd) & (_PAGE_PRESENT | _PAGE_PROT_NONE)); @@ -432,18 +448,6 @@ static inline int ptep_clear_flush_young(struct vm_area_struct *vma, #define __pte_to_swp_entry(pte) ((swp_entry_t) { pte_val(pte) }) #define __swp_entry_to_pte(x) ((pte_t) { (x).val }) -#define PCI_IO_SIZE SZ_16M -#define PCI_IO_END VMEMMAP_START -#define PCI_IO_START (PCI_IO_END - PCI_IO_SIZE) - -#define FIXADDR_TOP PCI_IO_START -#ifdef CONFIG_64BIT -#define FIXADDR_SIZE PMD_SIZE -#else -#define FIXADDR_SIZE PGDIR_SIZE -#endif -#define FIXADDR_START (FIXADDR_TOP - FIXADDR_SIZE) - /* * Task size is 0x4000000000 for RV64 or 0x9fc00000 for RV32. * Note that PGDIR_SIZE must evenly divide TASK_SIZE. diff --git a/arch/riscv/include/asm/syscall.h b/arch/riscv/include/asm/syscall.h index 42347d0981e7..49350c8bd7b0 100644 --- a/arch/riscv/include/asm/syscall.h +++ b/arch/riscv/include/asm/syscall.h @@ -28,13 +28,6 @@ static inline int syscall_get_nr(struct task_struct *task, return regs->a7; } -static inline void syscall_set_nr(struct task_struct *task, - struct pt_regs *regs, - int sysno) -{ - regs->a7 = sysno; -} - static inline void syscall_rollback(struct task_struct *task, struct pt_regs *regs) { diff --git a/arch/riscv/include/asm/uaccess.h b/arch/riscv/include/asm/uaccess.h index f462a183a9c2..8ce9d607b53d 100644 --- a/arch/riscv/include/asm/uaccess.h +++ b/arch/riscv/include/asm/uaccess.h @@ -11,6 +11,24 @@ /* * User space memory access functions */ + +extern unsigned long __must_check __asm_copy_to_user(void __user *to, + const void *from, unsigned long n); +extern unsigned long __must_check __asm_copy_from_user(void *to, + const void __user *from, unsigned long n); + +static inline unsigned long +raw_copy_from_user(void *to, const void __user *from, unsigned long n) +{ + return __asm_copy_from_user(to, from, n); +} + +static inline unsigned long +raw_copy_to_user(void __user *to, const void *from, unsigned long n) +{ + return __asm_copy_to_user(to, from, n); +} + #ifdef CONFIG_MMU #include <linux/errno.h> #include <linux/compiler.h> @@ -367,24 +385,6 @@ do { \ -EFAULT; \ }) - -extern unsigned long __must_check __asm_copy_to_user(void __user *to, - const void *from, unsigned long n); -extern unsigned long __must_check __asm_copy_from_user(void *to, - const void __user *from, unsigned long n); - -static inline unsigned long -raw_copy_from_user(void *to, const void __user *from, unsigned long n) -{ - return __asm_copy_from_user(to, from, n); -} - -static inline unsigned long -raw_copy_to_user(void __user *to, const void *from, unsigned long n) -{ - return __asm_copy_to_user(to, from, n); -} - extern long strncpy_from_user(char *dest, const char __user *src, long count); extern long __must_check strlen_user(const char __user *str); diff --git a/arch/riscv/kernel/entry.S b/arch/riscv/kernel/entry.S index bad4d85b5e91..208702d8c18e 100644 --- a/arch/riscv/kernel/entry.S +++ b/arch/riscv/kernel/entry.S @@ -229,19 +229,12 @@ check_syscall_nr: li t0, __NR_syscalls la s0, sys_ni_syscall /* - * The tracer can change syscall number to valid/invalid value. - * We use syscall_set_nr helper in syscall_trace_enter thus we - * cannot trust the current value in a7 and have to reload from - * the current task pt_regs. - */ - REG_L a7, PT_A7(sp) - /* * Syscall number held in a7. * If syscall number is above allowed value, redirect to ni_syscall. */ bge a7, t0, 1f /* - * Check if syscall is rejected by tracer or seccomp, i.e., a7 == -1. + * Check if syscall is rejected by tracer, i.e., a7 == -1. * If yes, we pretend it was executed. */ li t1, -1 @@ -334,6 +327,7 @@ work_resched: handle_syscall_trace_enter: move a0, sp call do_syscall_trace_enter + move t0, a0 REG_L a0, PT_A0(sp) REG_L a1, PT_A1(sp) REG_L a2, PT_A2(sp) @@ -342,6 +336,7 @@ handle_syscall_trace_enter: REG_L a5, PT_A5(sp) REG_L a6, PT_A6(sp) REG_L a7, PT_A7(sp) + bnez t0, ret_from_syscall_rejected j check_syscall_nr handle_syscall_trace_exit: move a0, sp diff --git a/arch/riscv/kernel/module.c b/arch/riscv/kernel/module.c index b7401858d872..8bbe5dbe1341 100644 --- a/arch/riscv/kernel/module.c +++ b/arch/riscv/kernel/module.c @@ -8,6 +8,10 @@ #include <linux/err.h> #include <linux/errno.h> #include <linux/moduleloader.h> +#include <linux/vmalloc.h> +#include <linux/sizes.h> +#include <asm/pgtable.h> +#include <asm/sections.h> static int apply_r_riscv_32_rela(struct module *me, u32 *location, Elf_Addr v) { @@ -386,3 +390,15 @@ int apply_relocate_add(Elf_Shdr *sechdrs, const char *strtab, return 0; } + +#if defined(CONFIG_MMU) && defined(CONFIG_64BIT) +#define VMALLOC_MODULE_START \ + max(PFN_ALIGN((unsigned long)&_end - SZ_2G), VMALLOC_START) +void *module_alloc(unsigned long size) +{ + return __vmalloc_node_range(size, 1, VMALLOC_MODULE_START, + VMALLOC_END, GFP_KERNEL, + PAGE_KERNEL_EXEC, 0, NUMA_NO_NODE, + __builtin_return_address(0)); +} +#endif diff --git a/arch/riscv/kernel/ptrace.c b/arch/riscv/kernel/ptrace.c index 407464201b91..444dc7b0fd78 100644 --- a/arch/riscv/kernel/ptrace.c +++ b/arch/riscv/kernel/ptrace.c @@ -148,21 +148,19 @@ long arch_ptrace(struct task_struct *child, long request, * Allows PTRACE_SYSCALL to work. These are called from entry.S in * {handle,ret_from}_syscall. */ -__visible void do_syscall_trace_enter(struct pt_regs *regs) +__visible int do_syscall_trace_enter(struct pt_regs *regs) { if (test_thread_flag(TIF_SYSCALL_TRACE)) if (tracehook_report_syscall_entry(regs)) - syscall_set_nr(current, regs, -1); + return -1; /* * Do the secure computing after ptrace; failures should be fast. * If this fails we might have return value in a0 from seccomp * (via SECCOMP_RET_ERRNO/TRACE). */ - if (secure_computing() == -1) { - syscall_set_nr(current, regs, -1); - return; - } + if (secure_computing() == -1) + return -1; #ifdef CONFIG_HAVE_SYSCALL_TRACEPOINTS if (test_thread_flag(TIF_SYSCALL_TRACEPOINT)) @@ -170,6 +168,7 @@ __visible void do_syscall_trace_enter(struct pt_regs *regs) #endif audit_syscall_entry(regs->a7, regs->a0, regs->a1, regs->a2, regs->a3); + return 0; } __visible void do_syscall_trace_exit(struct pt_regs *regs) diff --git a/arch/riscv/kernel/smp.c b/arch/riscv/kernel/smp.c index eb878abcaaf8..e0a6293093f1 100644 --- a/arch/riscv/kernel/smp.c +++ b/arch/riscv/kernel/smp.c @@ -96,7 +96,7 @@ static void send_ipi_mask(const struct cpumask *mask, enum ipi_message_type op) if (IS_ENABLED(CONFIG_RISCV_SBI)) sbi_send_ipi(cpumask_bits(&hartid_mask)); else - clint_send_ipi_mask(&hartid_mask); + clint_send_ipi_mask(mask); } static void send_ipi_single(int cpu, enum ipi_message_type op) diff --git a/arch/riscv/kernel/traps.c b/arch/riscv/kernel/traps.c index ffb3d94bf0cc..55ea614d89bf 100644 --- a/arch/riscv/kernel/traps.c +++ b/arch/riscv/kernel/traps.c @@ -157,5 +157,5 @@ void __init trap_init(void) /* Set the exception vector address */ csr_write(CSR_TVEC, &handle_exception); /* Enable interrupts */ - csr_write(CSR_IE, IE_SIE | IE_EIE); + csr_write(CSR_IE, IE_SIE); } diff --git a/arch/riscv/lib/Makefile b/arch/riscv/lib/Makefile index 47e7a8204460..0d0db80800c4 100644 --- a/arch/riscv/lib/Makefile +++ b/arch/riscv/lib/Makefile @@ -2,5 +2,5 @@ lib-y += delay.o lib-y += memcpy.o lib-y += memset.o -lib-$(CONFIG_MMU) += uaccess.o +lib-y += uaccess.o lib-$(CONFIG_64BIT) += tishift.o diff --git a/arch/riscv/mm/init.c b/arch/riscv/mm/init.c index 965a8cf4829c..fab855963c73 100644 --- a/arch/riscv/mm/init.c +++ b/arch/riscv/mm/init.c @@ -131,7 +131,7 @@ void __init setup_bootmem(void) for_each_memblock(memory, reg) { phys_addr_t end = reg->base + reg->size; - if (reg->base <= vmlinux_end && vmlinux_end <= end) { + if (reg->base <= vmlinux_start && vmlinux_end <= end) { mem_size = min(reg->size, (phys_addr_t)-PAGE_OFFSET); /* diff --git a/arch/s390/include/asm/futex.h b/arch/s390/include/asm/futex.h index 5e97a4353147..26f9144562c9 100644 --- a/arch/s390/include/asm/futex.h +++ b/arch/s390/include/asm/futex.h @@ -29,7 +29,6 @@ static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval, mm_segment_t old_fs; old_fs = enable_sacf_uaccess(); - pagefault_disable(); switch (op) { case FUTEX_OP_SET: __futex_atomic_op("lr %2,%5\n", @@ -54,7 +53,6 @@ static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval, default: ret = -ENOSYS; } - pagefault_enable(); disable_sacf_uaccess(old_fs); if (!ret) diff --git a/arch/s390/include/asm/pgtable.h b/arch/s390/include/asm/pgtable.h index 137a3920ca36..6d7c3b7e9281 100644 --- a/arch/s390/include/asm/pgtable.h +++ b/arch/s390/include/asm/pgtable.h @@ -752,6 +752,12 @@ static inline int pmd_write(pmd_t pmd) return (pmd_val(pmd) & _SEGMENT_ENTRY_WRITE) != 0; } +#define pud_write pud_write +static inline int pud_write(pud_t pud) +{ + return (pud_val(pud) & _REGION3_ENTRY_WRITE) != 0; +} + static inline int pmd_dirty(pmd_t pmd) { return (pmd_val(pmd) & _SEGMENT_ENTRY_DIRTY) != 0; diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c index d7ff30e45589..c2e6d4ba4e23 100644 --- a/arch/s390/kvm/kvm-s390.c +++ b/arch/s390/kvm/kvm-s390.c @@ -3268,7 +3268,10 @@ static void kvm_arch_vcpu_ioctl_initial_reset(struct kvm_vcpu *vcpu) /* Initial reset is a superset of the normal reset */ kvm_arch_vcpu_ioctl_normal_reset(vcpu); - /* this equals initial cpu reset in pop, but we don't switch to ESA */ + /* + * This equals initial cpu reset in pop, but we don't switch to ESA. + * We do not only reset the internal data, but also ... + */ vcpu->arch.sie_block->gpsw.mask = 0; vcpu->arch.sie_block->gpsw.addr = 0; kvm_s390_set_prefix(vcpu, 0); @@ -3278,6 +3281,19 @@ static void kvm_arch_vcpu_ioctl_initial_reset(struct kvm_vcpu *vcpu) memset(vcpu->arch.sie_block->gcr, 0, sizeof(vcpu->arch.sie_block->gcr)); vcpu->arch.sie_block->gcr[0] = CR0_INITIAL_MASK; vcpu->arch.sie_block->gcr[14] = CR14_INITIAL_MASK; + + /* ... the data in sync regs */ + memset(vcpu->run->s.regs.crs, 0, sizeof(vcpu->run->s.regs.crs)); + vcpu->run->s.regs.ckc = 0; + vcpu->run->s.regs.crs[0] = CR0_INITIAL_MASK; + vcpu->run->s.regs.crs[14] = CR14_INITIAL_MASK; + vcpu->run->psw_addr = 0; + vcpu->run->psw_mask = 0; + vcpu->run->s.regs.todpr = 0; + vcpu->run->s.regs.cputm = 0; + vcpu->run->s.regs.ckc = 0; + vcpu->run->s.regs.pp = 0; + vcpu->run->s.regs.gbea = 1; vcpu->run->s.regs.fpc = 0; vcpu->arch.sie_block->gbea = 1; vcpu->arch.sie_block->pp = 0; diff --git a/arch/s390/pci/pci.c b/arch/s390/pci/pci.c index bc61ea18e88d..60716d18ce5a 100644 --- a/arch/s390/pci/pci.c +++ b/arch/s390/pci/pci.c @@ -424,7 +424,7 @@ static void zpci_map_resources(struct pci_dev *pdev) if (zpci_use_mio(zdev)) pdev->resource[i].start = - (resource_size_t __force) zdev->bars[i].mio_wb; + (resource_size_t __force) zdev->bars[i].mio_wt; else pdev->resource[i].start = (resource_size_t __force) pci_iomap_range_fh(pdev, i, 0, 0); @@ -531,7 +531,7 @@ static int zpci_setup_bus_resources(struct zpci_dev *zdev, flags |= IORESOURCE_MEM_64; if (zpci_use_mio(zdev)) - addr = (unsigned long) zdev->bars[i].mio_wb; + addr = (unsigned long) zdev->bars[i].mio_wt; else addr = ZPCI_ADDR(entry); size = 1UL << zdev->bars[i].size; diff --git a/arch/sh/boards/mach-cayman/irq.c b/arch/sh/boards/mach-cayman/irq.c index 3b6ea2d99013..0305d0b51730 100644 --- a/arch/sh/boards/mach-cayman/irq.c +++ b/arch/sh/boards/mach-cayman/irq.c @@ -40,16 +40,6 @@ static irqreturn_t cayman_interrupt_pci2(int irq, void *dev_id) return IRQ_NONE; } -static struct irqaction cayman_action_smsc = { - .name = "Cayman SMSC Mux", - .handler = cayman_interrupt_smsc, -}; - -static struct irqaction cayman_action_pci2 = { - .name = "Cayman PCI2 Mux", - .handler = cayman_interrupt_pci2, -}; - static void enable_cayman_irq(struct irq_data *data) { unsigned int irq = data->irq; @@ -149,6 +139,10 @@ void init_cayman_irq(void) } /* Setup the SMSC interrupt */ - setup_irq(SMSC_IRQ, &cayman_action_smsc); - setup_irq(PCI2_IRQ, &cayman_action_pci2); + if (request_irq(SMSC_IRQ, cayman_interrupt_smsc, 0, "Cayman SMSC Mux", + NULL)) + pr_err("Failed to register Cayman SMSC Mux interrupt\n"); + if (request_irq(PCI2_IRQ, cayman_interrupt_pci2, 0, "Cayman PCI2 Mux", + NULL)) + pr_err("Failed to register Cayman PCI2 Mux interrupt\n"); } diff --git a/arch/sh/drivers/dma/dma-pvr2.c b/arch/sh/drivers/dma/dma-pvr2.c index b5dbd1f75768..21c347543e19 100644 --- a/arch/sh/drivers/dma/dma-pvr2.c +++ b/arch/sh/drivers/dma/dma-pvr2.c @@ -64,11 +64,6 @@ static int pvr2_xfer_dma(struct dma_channel *chan) return 0; } -static struct irqaction pvr2_dma_irq = { - .name = "pvr2 DMA handler", - .handler = pvr2_dma_interrupt, -}; - static struct dma_ops pvr2_dma_ops = { .request = pvr2_request_dma, .get_residue = pvr2_get_dma_residue, @@ -84,7 +79,9 @@ static struct dma_info pvr2_dma_info = { static int __init pvr2_dma_init(void) { - setup_irq(HW_EVENT_PVR2_DMA, &pvr2_dma_irq); + if (request_irq(HW_EVENT_PVR2_DMA, pvr2_dma_interrupt, 0, + "pvr2 DMA handler", NULL)) + pr_err("Failed to register pvr2 DMA handler interrupt\n"); request_dma(PVR2_CASCADE_CHAN, "pvr2 cascade"); return register_dmac(&pvr2_dma_info); diff --git a/arch/sh/include/asm/futex.h b/arch/sh/include/asm/futex.h index 3190ec89df81..b39cda09fb95 100644 --- a/arch/sh/include/asm/futex.h +++ b/arch/sh/include/asm/futex.h @@ -34,8 +34,6 @@ static inline int arch_futex_atomic_op_inuser(int op, u32 oparg, int *oval, u32 oldval, newval, prev; int ret; - pagefault_disable(); - do { ret = get_user(oldval, uaddr); @@ -67,8 +65,6 @@ static inline int arch_futex_atomic_op_inuser(int op, u32 oparg, int *oval, ret = futex_atomic_cmpxchg_inatomic(&prev, uaddr, oldval, newval); } while (!ret && prev != oldval); - pagefault_enable(); - if (!ret) *oval = oldval; diff --git a/arch/sparc/Kconfig b/arch/sparc/Kconfig index c1dd6dd642f4..9cc9ab04bd99 100644 --- a/arch/sparc/Kconfig +++ b/arch/sparc/Kconfig @@ -71,6 +71,7 @@ config SPARC64 select HAVE_FTRACE_MCOUNT_RECORD select HAVE_SYSCALL_TRACEPOINTS select HAVE_CONTEXT_TRACKING + select HAVE_TIF_NOHZ select HAVE_DEBUG_KMEMLEAK select IOMMU_HELPER select SPARSE_IRQ diff --git a/arch/sparc/include/asm/futex_64.h b/arch/sparc/include/asm/futex_64.h index 0865ce77ec00..72de967318d7 100644 --- a/arch/sparc/include/asm/futex_64.h +++ b/arch/sparc/include/asm/futex_64.h @@ -38,8 +38,6 @@ static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval, if (unlikely((((unsigned long) uaddr) & 0x3UL))) return -EINVAL; - pagefault_disable(); - switch (op) { case FUTEX_OP_SET: __futex_cas_op("mov\t%4, %1", ret, oldval, uaddr, oparg); @@ -60,8 +58,6 @@ static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval, ret = -ENOSYS; } - pagefault_enable(); - if (!ret) *oval = oldval; diff --git a/arch/sparc/kernel/ds.c b/arch/sparc/kernel/ds.c index bbf59b3b4af8..75232cbd58bf 100644 --- a/arch/sparc/kernel/ds.c +++ b/arch/sparc/kernel/ds.c @@ -555,7 +555,7 @@ static int dr_cpu_configure(struct ds_info *dp, struct ds_cap_state *cp, printk(KERN_INFO "ds-%llu: Starting cpu %d...\n", dp->id, cpu); - err = cpu_up(cpu); + err = add_cpu(cpu); if (err) { __u32 res = DR_CPU_RES_FAILURE; __u32 stat = DR_CPU_STAT_UNCONFIGURED; @@ -611,7 +611,7 @@ static int dr_cpu_unconfigure(struct ds_info *dp, printk(KERN_INFO "ds-%llu: Shutting down cpu %d...\n", dp->id, cpu); - err = cpu_down(cpu); + err = remove_cpu(cpu); if (err) dr_cpu_mark(resp, cpu, ncpus, DR_CPU_RES_FAILURE, diff --git a/arch/unicore32/include/asm/io.h b/arch/unicore32/include/asm/io.h index 3ca74e1cde7d..bd4e7c332f85 100644 --- a/arch/unicore32/include/asm/io.h +++ b/arch/unicore32/include/asm/io.h @@ -27,7 +27,7 @@ extern void __uc32_iounmap(volatile void __iomem *addr); * ioremap and friends. * * ioremap takes a PCI memory address, as specified in - * Documentation/io-mapping.txt. + * Documentation/driver-api/io-mapping.rst. * */ #define ioremap(cookie, size) __uc32_ioremap(cookie, size) diff --git a/arch/unicore32/kernel/time.c b/arch/unicore32/kernel/time.c index 8b217a761bf0..c3a37edf4d40 100644 --- a/arch/unicore32/kernel/time.c +++ b/arch/unicore32/kernel/time.c @@ -72,13 +72,6 @@ static struct clocksource cksrc_puv3_oscr = { .flags = CLOCK_SOURCE_IS_CONTINUOUS, }; -static struct irqaction puv3_timer_irq = { - .name = "ost0", - .flags = IRQF_TIMER | IRQF_IRQPOLL, - .handler = puv3_ost0_interrupt, - .dev_id = &ckevt_puv3_osmr0, -}; - void __init time_init(void) { writel(0, OST_OIER); /* disable any timer interrupts */ @@ -94,7 +87,9 @@ void __init time_init(void) ckevt_puv3_osmr0.min_delta_ticks = MIN_OSCR_DELTA * 2; ckevt_puv3_osmr0.cpumask = cpumask_of(0); - setup_irq(IRQ_TIMER0, &puv3_timer_irq); + if (request_irq(IRQ_TIMER0, puv3_ost0_interrupt, + IRQF_TIMER | IRQF_IRQPOLL, "ost0", &ckevt_puv3_osmr0)) + pr_err("Failed to register ost0 interrupt\n"); clocksource_register_hz(&cksrc_puv3_oscr, CLOCK_TICK_RATE); clockevents_register_device(&ckevt_puv3_osmr0); diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig index beea77046f9b..ade80caafe6b 100644 --- a/arch/x86/Kconfig +++ b/arch/x86/Kconfig @@ -30,7 +30,6 @@ config X86_64 select MODULES_USE_ELF_RELA select NEED_DMA_MAP_STATE select SWIOTLB - select ARCH_HAS_SYSCALL_WRAPPER config FORCE_DYNAMIC_FTRACE def_bool y @@ -57,7 +56,6 @@ config X86 select ACPI_LEGACY_TABLES_LOOKUP if ACPI select ACPI_SYSTEM_POWER_STATES_SUPPORT if ACPI select ARCH_32BIT_OFF_T if X86_32 - select ARCH_CLOCKSOURCE_DATA select ARCH_CLOCKSOURCE_INIT select ARCH_HAS_ACPI_TABLE_UPGRADE if ACPI select ARCH_HAS_DEBUG_VIRTUAL @@ -80,6 +78,7 @@ config X86 select ARCH_HAS_STRICT_KERNEL_RWX select ARCH_HAS_STRICT_MODULE_RWX select ARCH_HAS_SYNC_CORE_BEFORE_USERMODE + select ARCH_HAS_SYSCALL_WRAPPER select ARCH_HAS_UBSAN_SANITIZE_ALL select ARCH_HAVE_NMI_SAFE_CMPXCHG select ARCH_MIGHT_HAVE_ACPI_PDC if ACPI @@ -128,6 +127,7 @@ config X86 select GENERIC_GETTIMEOFDAY select GENERIC_VDSO_TIME_NS select GUP_GET_PTE_LOW_HIGH if X86_PAE + select HARDIRQS_SW_RESEND select HARDLOCKUP_CHECK_TIMESTAMP if X86_64 select HAVE_ACPI_APEI if ACPI select HAVE_ACPI_APEI_NMI if ACPI @@ -1875,7 +1875,6 @@ config X86_SMAP config X86_UMIP def_bool y - depends on CPU_SUP_INTEL || CPU_SUP_AMD prompt "User Mode Instruction Prevention" if EXPERT ---help--- User Mode Instruction Prevention (UMIP) is a security feature in @@ -2418,7 +2417,7 @@ config CMDLINE config CMDLINE_OVERRIDE bool "Built-in command line overrides boot loader arguments" - depends on CMDLINE_BOOL + depends on CMDLINE_BOOL && CMDLINE != "" ---help--- Set this option to 'Y' to have the kernel ignore the boot loader command line, and use ONLY the built-in command line. diff --git a/arch/x86/Makefile b/arch/x86/Makefile index 94df0868804b..513a55562d75 100644 --- a/arch/x86/Makefile +++ b/arch/x86/Makefile @@ -194,9 +194,10 @@ avx2_instr :=$(call as-instr,vpbroadcastb %xmm0$(comma)%ymm1,-DCONFIG_AS_AVX2=1) avx512_instr :=$(call as-instr,vpmovm2b %k1$(comma)%zmm5,-DCONFIG_AS_AVX512=1) sha1_ni_instr :=$(call as-instr,sha1msg1 %xmm0$(comma)%xmm1,-DCONFIG_AS_SHA1_NI=1) sha256_ni_instr :=$(call as-instr,sha256msg1 %xmm0$(comma)%xmm1,-DCONFIG_AS_SHA256_NI=1) +adx_instr := $(call as-instr,adox %r10$(comma)%r10,-DCONFIG_AS_ADX=1) -KBUILD_AFLAGS += $(cfi) $(cfi-sigframe) $(cfi-sections) $(asinstr) $(avx_instr) $(avx2_instr) $(avx512_instr) $(sha1_ni_instr) $(sha256_ni_instr) -KBUILD_CFLAGS += $(cfi) $(cfi-sigframe) $(cfi-sections) $(asinstr) $(avx_instr) $(avx2_instr) $(avx512_instr) $(sha1_ni_instr) $(sha256_ni_instr) +KBUILD_AFLAGS += $(cfi) $(cfi-sigframe) $(cfi-sections) $(asinstr) $(avx_instr) $(avx2_instr) $(avx512_instr) $(sha1_ni_instr) $(sha256_ni_instr) $(adx_instr) +KBUILD_CFLAGS += $(cfi) $(cfi-sigframe) $(cfi-sections) $(asinstr) $(avx_instr) $(avx2_instr) $(avx512_instr) $(sha1_ni_instr) $(sha256_ni_instr) $(adx_instr) KBUILD_LDFLAGS := -m elf_$(UTS_MACHINE) diff --git a/arch/x86/boot/Makefile b/arch/x86/boot/Makefile index 012b82fc8617..e17be90ab312 100644 --- a/arch/x86/boot/Makefile +++ b/arch/x86/boot/Makefile @@ -68,6 +68,7 @@ clean-files += cpustr.h KBUILD_CFLAGS := $(REALMODE_CFLAGS) -D_SETUP KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__ KBUILD_CFLAGS += $(call cc-option,-fmacro-prefix-map=$(srctree)/=) +KBUILD_CFLAGS += -fno-asynchronous-unwind-tables GCOV_PROFILE := n UBSAN_SANITIZE := n @@ -88,7 +89,7 @@ $(obj)/vmlinux.bin: $(obj)/compressed/vmlinux FORCE SETUP_OBJS = $(addprefix $(obj)/,$(setup-y)) -sed-zoffset := -e 's/^\([0-9a-fA-F]*\) [a-zA-Z] \(startup_32\|startup_64\|efi32_stub_entry\|efi64_stub_entry\|efi_pe_entry\|input_data\|kernel_info\|_end\|_ehead\|_text\|z_.*\)$$/\#define ZO_\2 0x\1/p' +sed-zoffset := -e 's/^\([0-9a-fA-F]*\) [a-zA-Z] \(startup_32\|startup_64\|efi32_stub_entry\|efi64_stub_entry\|efi_pe_entry\|efi32_pe_entry\|input_data\|kernel_info\|_end\|_ehead\|_text\|z_.*\)$$/\#define ZO_\2 0x\1/p' quiet_cmd_zoffset = ZOFFSET $@ cmd_zoffset = $(NM) $< | sed -n $(sed-zoffset) > $@ diff --git a/arch/x86/boot/compressed/Makefile b/arch/x86/boot/compressed/Makefile index 26050ae0b27e..5f7c262bcc99 100644 --- a/arch/x86/boot/compressed/Makefile +++ b/arch/x86/boot/compressed/Makefile @@ -39,6 +39,7 @@ KBUILD_CFLAGS += $(call cc-disable-warning, address-of-packed-member) KBUILD_CFLAGS += $(call cc-disable-warning, gnu) KBUILD_CFLAGS += -Wno-pointer-sign KBUILD_CFLAGS += $(call cc-option,-fmacro-prefix-map=$(srctree)/=) +KBUILD_CFLAGS += -fno-asynchronous-unwind-tables KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__ GCOV_PROFILE := n @@ -87,10 +88,7 @@ endif vmlinux-objs-$(CONFIG_ACPI) += $(obj)/acpi.o -$(obj)/eboot.o: KBUILD_CFLAGS += -fshort-wchar -mno-red-zone - -vmlinux-objs-$(CONFIG_EFI_STUB) += $(obj)/eboot.o \ - $(objtree)/drivers/firmware/efi/libstub/lib.a +vmlinux-objs-$(CONFIG_EFI_STUB) += $(objtree)/drivers/firmware/efi/libstub/lib.a vmlinux-objs-$(CONFIG_EFI_MIXED) += $(obj)/efi_thunk_$(BITS).o # The compressed kernel is built with -fPIC/-fPIE so that a boot loader diff --git a/arch/x86/boot/compressed/eboot.c b/arch/x86/boot/compressed/eboot.c deleted file mode 100644 index 287393d725f0..000000000000 --- a/arch/x86/boot/compressed/eboot.c +++ /dev/null @@ -1,889 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0-only - -/* ----------------------------------------------------------------------- - * - * Copyright 2011 Intel Corporation; author Matt Fleming - * - * ----------------------------------------------------------------------- */ - -#pragma GCC visibility push(hidden) - -#include <linux/efi.h> -#include <linux/pci.h> - -#include <asm/efi.h> -#include <asm/e820/types.h> -#include <asm/setup.h> -#include <asm/desc.h> -#include <asm/boot.h> - -#include "../string.h" -#include "eboot.h" - -static efi_system_table_t *sys_table; -extern const bool efi_is64; - -__pure efi_system_table_t *efi_system_table(void) -{ - return sys_table; -} - -__attribute_const__ bool efi_is_64bit(void) -{ - if (IS_ENABLED(CONFIG_EFI_MIXED)) - return efi_is64; - return IS_ENABLED(CONFIG_X86_64); -} - -static efi_status_t -preserve_pci_rom_image(efi_pci_io_protocol_t *pci, struct pci_setup_rom **__rom) -{ - struct pci_setup_rom *rom = NULL; - efi_status_t status; - unsigned long size; - uint64_t romsize; - void *romimage; - - /* - * Some firmware images contain EFI function pointers at the place where - * the romimage and romsize fields are supposed to be. Typically the EFI - * code is mapped at high addresses, translating to an unrealistically - * large romsize. The UEFI spec limits the size of option ROMs to 16 - * MiB so we reject any ROMs over 16 MiB in size to catch this. - */ - romimage = efi_table_attr(pci, romimage); - romsize = efi_table_attr(pci, romsize); - if (!romimage || !romsize || romsize > SZ_16M) - return EFI_INVALID_PARAMETER; - - size = romsize + sizeof(*rom); - - status = efi_bs_call(allocate_pool, EFI_LOADER_DATA, size, - (void **)&rom); - if (status != EFI_SUCCESS) { - efi_printk("Failed to allocate memory for 'rom'\n"); - return status; - } - - memset(rom, 0, sizeof(*rom)); - - rom->data.type = SETUP_PCI; - rom->data.len = size - sizeof(struct setup_data); - rom->data.next = 0; - rom->pcilen = pci->romsize; - *__rom = rom; - - status = efi_call_proto(pci, pci.read, EfiPciIoWidthUint16, - PCI_VENDOR_ID, 1, &rom->vendor); - - if (status != EFI_SUCCESS) { - efi_printk("Failed to read rom->vendor\n"); - goto free_struct; - } - - status = efi_call_proto(pci, pci.read, EfiPciIoWidthUint16, - PCI_DEVICE_ID, 1, &rom->devid); - - if (status != EFI_SUCCESS) { - efi_printk("Failed to read rom->devid\n"); - goto free_struct; - } - - status = efi_call_proto(pci, get_location, &rom->segment, &rom->bus, - &rom->device, &rom->function); - - if (status != EFI_SUCCESS) - goto free_struct; - - memcpy(rom->romdata, romimage, romsize); - return status; - -free_struct: - efi_bs_call(free_pool, rom); - return status; -} - -/* - * There's no way to return an informative status from this function, - * because any analysis (and printing of error messages) needs to be - * done directly at the EFI function call-site. - * - * For example, EFI_INVALID_PARAMETER could indicate a bug or maybe we - * just didn't find any PCI devices, but there's no way to tell outside - * the context of the call. - */ -static void setup_efi_pci(struct boot_params *params) -{ - efi_status_t status; - void **pci_handle = NULL; - efi_guid_t pci_proto = EFI_PCI_IO_PROTOCOL_GUID; - unsigned long size = 0; - struct setup_data *data; - efi_handle_t h; - int i; - - status = efi_bs_call(locate_handle, EFI_LOCATE_BY_PROTOCOL, - &pci_proto, NULL, &size, pci_handle); - - if (status == EFI_BUFFER_TOO_SMALL) { - status = efi_bs_call(allocate_pool, EFI_LOADER_DATA, size, - (void **)&pci_handle); - - if (status != EFI_SUCCESS) { - efi_printk("Failed to allocate memory for 'pci_handle'\n"); - return; - } - - status = efi_bs_call(locate_handle, EFI_LOCATE_BY_PROTOCOL, - &pci_proto, NULL, &size, pci_handle); - } - - if (status != EFI_SUCCESS) - goto free_handle; - - data = (struct setup_data *)(unsigned long)params->hdr.setup_data; - - while (data && data->next) - data = (struct setup_data *)(unsigned long)data->next; - - for_each_efi_handle(h, pci_handle, size, i) { - efi_pci_io_protocol_t *pci = NULL; - struct pci_setup_rom *rom; - - status = efi_bs_call(handle_protocol, h, &pci_proto, - (void **)&pci); - if (status != EFI_SUCCESS || !pci) - continue; - - status = preserve_pci_rom_image(pci, &rom); - if (status != EFI_SUCCESS) - continue; - - if (data) - data->next = (unsigned long)rom; - else - params->hdr.setup_data = (unsigned long)rom; - - data = (struct setup_data *)rom; - } - -free_handle: - efi_bs_call(free_pool, pci_handle); -} - -static void retrieve_apple_device_properties(struct boot_params *boot_params) -{ - efi_guid_t guid = APPLE_PROPERTIES_PROTOCOL_GUID; - struct setup_data *data, *new; - efi_status_t status; - u32 size = 0; - apple_properties_protocol_t *p; - - status = efi_bs_call(locate_protocol, &guid, NULL, (void **)&p); - if (status != EFI_SUCCESS) - return; - - if (efi_table_attr(p, version) != 0x10000) { - efi_printk("Unsupported properties proto version\n"); - return; - } - - efi_call_proto(p, get_all, NULL, &size); - if (!size) - return; - - do { - status = efi_bs_call(allocate_pool, EFI_LOADER_DATA, - size + sizeof(struct setup_data), - (void **)&new); - if (status != EFI_SUCCESS) { - efi_printk("Failed to allocate memory for 'properties'\n"); - return; - } - - status = efi_call_proto(p, get_all, new->data, &size); - - if (status == EFI_BUFFER_TOO_SMALL) - efi_bs_call(free_pool, new); - } while (status == EFI_BUFFER_TOO_SMALL); - - new->type = SETUP_APPLE_PROPERTIES; - new->len = size; - new->next = 0; - - data = (struct setup_data *)(unsigned long)boot_params->hdr.setup_data; - if (!data) { - boot_params->hdr.setup_data = (unsigned long)new; - } else { - while (data->next) - data = (struct setup_data *)(unsigned long)data->next; - data->next = (unsigned long)new; - } -} - -static const efi_char16_t apple[] = L"Apple"; - -static void setup_quirks(struct boot_params *boot_params) -{ - efi_char16_t *fw_vendor = (efi_char16_t *)(unsigned long) - efi_table_attr(efi_system_table(), fw_vendor); - - if (!memcmp(fw_vendor, apple, sizeof(apple))) { - if (IS_ENABLED(CONFIG_APPLE_PROPERTIES)) - retrieve_apple_device_properties(boot_params); - } -} - -/* - * See if we have Universal Graphics Adapter (UGA) protocol - */ -static efi_status_t -setup_uga(struct screen_info *si, efi_guid_t *uga_proto, unsigned long size) -{ - efi_status_t status; - u32 width, height; - void **uga_handle = NULL; - efi_uga_draw_protocol_t *uga = NULL, *first_uga; - efi_handle_t handle; - int i; - - status = efi_bs_call(allocate_pool, EFI_LOADER_DATA, size, - (void **)&uga_handle); - if (status != EFI_SUCCESS) - return status; - - status = efi_bs_call(locate_handle, EFI_LOCATE_BY_PROTOCOL, - uga_proto, NULL, &size, uga_handle); - if (status != EFI_SUCCESS) - goto free_handle; - - height = 0; - width = 0; - - first_uga = NULL; - for_each_efi_handle(handle, uga_handle, size, i) { - efi_guid_t pciio_proto = EFI_PCI_IO_PROTOCOL_GUID; - u32 w, h, depth, refresh; - void *pciio; - - status = efi_bs_call(handle_protocol, handle, uga_proto, - (void **)&uga); - if (status != EFI_SUCCESS) - continue; - - pciio = NULL; - efi_bs_call(handle_protocol, handle, &pciio_proto, &pciio); - - status = efi_call_proto(uga, get_mode, &w, &h, &depth, &refresh); - if (status == EFI_SUCCESS && (!first_uga || pciio)) { - width = w; - height = h; - - /* - * Once we've found a UGA supporting PCIIO, - * don't bother looking any further. - */ - if (pciio) - break; - - first_uga = uga; - } - } - - if (!width && !height) - goto free_handle; - - /* EFI framebuffer */ - si->orig_video_isVGA = VIDEO_TYPE_EFI; - - si->lfb_depth = 32; - si->lfb_width = width; - si->lfb_height = height; - - si->red_size = 8; - si->red_pos = 16; - si->green_size = 8; - si->green_pos = 8; - si->blue_size = 8; - si->blue_pos = 0; - si->rsvd_size = 8; - si->rsvd_pos = 24; - -free_handle: - efi_bs_call(free_pool, uga_handle); - - return status; -} - -void setup_graphics(struct boot_params *boot_params) -{ - efi_guid_t graphics_proto = EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID; - struct screen_info *si; - efi_guid_t uga_proto = EFI_UGA_PROTOCOL_GUID; - efi_status_t status; - unsigned long size; - void **gop_handle = NULL; - void **uga_handle = NULL; - - si = &boot_params->screen_info; - memset(si, 0, sizeof(*si)); - - size = 0; - status = efi_bs_call(locate_handle, EFI_LOCATE_BY_PROTOCOL, - &graphics_proto, NULL, &size, gop_handle); - if (status == EFI_BUFFER_TOO_SMALL) - status = efi_setup_gop(si, &graphics_proto, size); - - if (status != EFI_SUCCESS) { - size = 0; - status = efi_bs_call(locate_handle, EFI_LOCATE_BY_PROTOCOL, - &uga_proto, NULL, &size, uga_handle); - if (status == EFI_BUFFER_TOO_SMALL) - setup_uga(si, &uga_proto, size); - } -} - -void startup_32(struct boot_params *boot_params); - -void __noreturn efi_stub_entry(efi_handle_t handle, - efi_system_table_t *sys_table_arg, - struct boot_params *boot_params); - -/* - * Because the x86 boot code expects to be passed a boot_params we - * need to create one ourselves (usually the bootloader would create - * one for us). - */ -efi_status_t __efiapi efi_pe_entry(efi_handle_t handle, - efi_system_table_t *sys_table_arg) -{ - struct boot_params *boot_params; - struct apm_bios_info *bi; - struct setup_header *hdr; - efi_loaded_image_t *image; - efi_guid_t proto = LOADED_IMAGE_PROTOCOL_GUID; - int options_size = 0; - efi_status_t status; - char *cmdline_ptr; - unsigned long ramdisk_addr; - unsigned long ramdisk_size; - - sys_table = sys_table_arg; - - /* Check if we were booted by the EFI firmware */ - if (sys_table->hdr.signature != EFI_SYSTEM_TABLE_SIGNATURE) - return EFI_INVALID_PARAMETER; - - status = efi_bs_call(handle_protocol, handle, &proto, (void *)&image); - if (status != EFI_SUCCESS) { - efi_printk("Failed to get handle for LOADED_IMAGE_PROTOCOL\n"); - return status; - } - - status = efi_low_alloc(0x4000, 1, (unsigned long *)&boot_params); - if (status != EFI_SUCCESS) { - efi_printk("Failed to allocate lowmem for boot params\n"); - return status; - } - - memset(boot_params, 0x0, 0x4000); - - hdr = &boot_params->hdr; - bi = &boot_params->apm_bios_info; - - /* Copy the second sector to boot_params */ - memcpy(&hdr->jump, image->image_base + 512, 512); - - /* - * Fill out some of the header fields ourselves because the - * EFI firmware loader doesn't load the first sector. - */ - hdr->root_flags = 1; - hdr->vid_mode = 0xffff; - hdr->boot_flag = 0xAA55; - - hdr->type_of_loader = 0x21; - - /* Convert unicode cmdline to ascii */ - cmdline_ptr = efi_convert_cmdline(image, &options_size); - if (!cmdline_ptr) - goto fail; - - hdr->cmd_line_ptr = (unsigned long)cmdline_ptr; - /* Fill in upper bits of command line address, NOP on 32 bit */ - boot_params->ext_cmd_line_ptr = (u64)(unsigned long)cmdline_ptr >> 32; - - hdr->ramdisk_image = 0; - hdr->ramdisk_size = 0; - - /* Clear APM BIOS info */ - memset(bi, 0, sizeof(*bi)); - - status = efi_parse_options(cmdline_ptr); - if (status != EFI_SUCCESS) - goto fail2; - - status = handle_cmdline_files(image, - (char *)(unsigned long)hdr->cmd_line_ptr, - "initrd=", hdr->initrd_addr_max, - &ramdisk_addr, &ramdisk_size); - - if (status != EFI_SUCCESS && - hdr->xloadflags & XLF_CAN_BE_LOADED_ABOVE_4G) { - efi_printk("Trying to load files to higher address\n"); - status = handle_cmdline_files(image, - (char *)(unsigned long)hdr->cmd_line_ptr, - "initrd=", -1UL, - &ramdisk_addr, &ramdisk_size); - } - - if (status != EFI_SUCCESS) - goto fail2; - hdr->ramdisk_image = ramdisk_addr & 0xffffffff; - hdr->ramdisk_size = ramdisk_size & 0xffffffff; - boot_params->ext_ramdisk_image = (u64)ramdisk_addr >> 32; - boot_params->ext_ramdisk_size = (u64)ramdisk_size >> 32; - - hdr->code32_start = (u32)(unsigned long)startup_32; - - efi_stub_entry(handle, sys_table, boot_params); - /* not reached */ - -fail2: - efi_free(options_size, hdr->cmd_line_ptr); -fail: - efi_free(0x4000, (unsigned long)boot_params); - - return status; -} - -static void add_e820ext(struct boot_params *params, - struct setup_data *e820ext, u32 nr_entries) -{ - struct setup_data *data; - - e820ext->type = SETUP_E820_EXT; - e820ext->len = nr_entries * sizeof(struct boot_e820_entry); - e820ext->next = 0; - - data = (struct setup_data *)(unsigned long)params->hdr.setup_data; - - while (data && data->next) - data = (struct setup_data *)(unsigned long)data->next; - - if (data) - data->next = (unsigned long)e820ext; - else - params->hdr.setup_data = (unsigned long)e820ext; -} - -static efi_status_t -setup_e820(struct boot_params *params, struct setup_data *e820ext, u32 e820ext_size) -{ - struct boot_e820_entry *entry = params->e820_table; - struct efi_info *efi = ¶ms->efi_info; - struct boot_e820_entry *prev = NULL; - u32 nr_entries; - u32 nr_desc; - int i; - - nr_entries = 0; - nr_desc = efi->efi_memmap_size / efi->efi_memdesc_size; - - for (i = 0; i < nr_desc; i++) { - efi_memory_desc_t *d; - unsigned int e820_type = 0; - unsigned long m = efi->efi_memmap; - -#ifdef CONFIG_X86_64 - m |= (u64)efi->efi_memmap_hi << 32; -#endif - - d = efi_early_memdesc_ptr(m, efi->efi_memdesc_size, i); - switch (d->type) { - case EFI_RESERVED_TYPE: - case EFI_RUNTIME_SERVICES_CODE: - case EFI_RUNTIME_SERVICES_DATA: - case EFI_MEMORY_MAPPED_IO: - case EFI_MEMORY_MAPPED_IO_PORT_SPACE: - case EFI_PAL_CODE: - e820_type = E820_TYPE_RESERVED; - break; - - case EFI_UNUSABLE_MEMORY: - e820_type = E820_TYPE_UNUSABLE; - break; - - case EFI_ACPI_RECLAIM_MEMORY: - e820_type = E820_TYPE_ACPI; - break; - - case EFI_LOADER_CODE: - case EFI_LOADER_DATA: - case EFI_BOOT_SERVICES_CODE: - case EFI_BOOT_SERVICES_DATA: - case EFI_CONVENTIONAL_MEMORY: - if (efi_soft_reserve_enabled() && - (d->attribute & EFI_MEMORY_SP)) - e820_type = E820_TYPE_SOFT_RESERVED; - else - e820_type = E820_TYPE_RAM; - break; - - case EFI_ACPI_MEMORY_NVS: - e820_type = E820_TYPE_NVS; - break; - - case EFI_PERSISTENT_MEMORY: - e820_type = E820_TYPE_PMEM; - break; - - default: - continue; - } - - /* Merge adjacent mappings */ - if (prev && prev->type == e820_type && - (prev->addr + prev->size) == d->phys_addr) { - prev->size += d->num_pages << 12; - continue; - } - - if (nr_entries == ARRAY_SIZE(params->e820_table)) { - u32 need = (nr_desc - i) * sizeof(struct e820_entry) + - sizeof(struct setup_data); - - if (!e820ext || e820ext_size < need) - return EFI_BUFFER_TOO_SMALL; - - /* boot_params map full, switch to e820 extended */ - entry = (struct boot_e820_entry *)e820ext->data; - } - - entry->addr = d->phys_addr; - entry->size = d->num_pages << PAGE_SHIFT; - entry->type = e820_type; - prev = entry++; - nr_entries++; - } - - if (nr_entries > ARRAY_SIZE(params->e820_table)) { - u32 nr_e820ext = nr_entries - ARRAY_SIZE(params->e820_table); - - add_e820ext(params, e820ext, nr_e820ext); - nr_entries -= nr_e820ext; - } - - params->e820_entries = (u8)nr_entries; - - return EFI_SUCCESS; -} - -static efi_status_t alloc_e820ext(u32 nr_desc, struct setup_data **e820ext, - u32 *e820ext_size) -{ - efi_status_t status; - unsigned long size; - - size = sizeof(struct setup_data) + - sizeof(struct e820_entry) * nr_desc; - - if (*e820ext) { - efi_bs_call(free_pool, *e820ext); - *e820ext = NULL; - *e820ext_size = 0; - } - - status = efi_bs_call(allocate_pool, EFI_LOADER_DATA, size, - (void **)e820ext); - if (status == EFI_SUCCESS) - *e820ext_size = size; - - return status; -} - -static efi_status_t allocate_e820(struct boot_params *params, - struct setup_data **e820ext, - u32 *e820ext_size) -{ - unsigned long map_size, desc_size, buff_size; - struct efi_boot_memmap boot_map; - efi_memory_desc_t *map; - efi_status_t status; - __u32 nr_desc; - - boot_map.map = ↦ - boot_map.map_size = &map_size; - boot_map.desc_size = &desc_size; - boot_map.desc_ver = NULL; - boot_map.key_ptr = NULL; - boot_map.buff_size = &buff_size; - - status = efi_get_memory_map(&boot_map); - if (status != EFI_SUCCESS) - return status; - - nr_desc = buff_size / desc_size; - - if (nr_desc > ARRAY_SIZE(params->e820_table)) { - u32 nr_e820ext = nr_desc - ARRAY_SIZE(params->e820_table); - - status = alloc_e820ext(nr_e820ext, e820ext, e820ext_size); - if (status != EFI_SUCCESS) - return status; - } - - return EFI_SUCCESS; -} - -struct exit_boot_struct { - struct boot_params *boot_params; - struct efi_info *efi; -}; - -static efi_status_t exit_boot_func(struct efi_boot_memmap *map, - void *priv) -{ - const char *signature; - struct exit_boot_struct *p = priv; - - signature = efi_is_64bit() ? EFI64_LOADER_SIGNATURE - : EFI32_LOADER_SIGNATURE; - memcpy(&p->efi->efi_loader_signature, signature, sizeof(__u32)); - - p->efi->efi_systab = (unsigned long)efi_system_table(); - p->efi->efi_memdesc_size = *map->desc_size; - p->efi->efi_memdesc_version = *map->desc_ver; - p->efi->efi_memmap = (unsigned long)*map->map; - p->efi->efi_memmap_size = *map->map_size; - -#ifdef CONFIG_X86_64 - p->efi->efi_systab_hi = (unsigned long)efi_system_table() >> 32; - p->efi->efi_memmap_hi = (unsigned long)*map->map >> 32; -#endif - - return EFI_SUCCESS; -} - -static efi_status_t exit_boot(struct boot_params *boot_params, void *handle) -{ - unsigned long map_sz, key, desc_size, buff_size; - efi_memory_desc_t *mem_map; - struct setup_data *e820ext = NULL; - __u32 e820ext_size = 0; - efi_status_t status; - __u32 desc_version; - struct efi_boot_memmap map; - struct exit_boot_struct priv; - - map.map = &mem_map; - map.map_size = &map_sz; - map.desc_size = &desc_size; - map.desc_ver = &desc_version; - map.key_ptr = &key; - map.buff_size = &buff_size; - priv.boot_params = boot_params; - priv.efi = &boot_params->efi_info; - - status = allocate_e820(boot_params, &e820ext, &e820ext_size); - if (status != EFI_SUCCESS) - return status; - - /* Might as well exit boot services now */ - status = efi_exit_boot_services(handle, &map, &priv, exit_boot_func); - if (status != EFI_SUCCESS) - return status; - - /* Historic? */ - boot_params->alt_mem_k = 32 * 1024; - - status = setup_e820(boot_params, e820ext, e820ext_size); - if (status != EFI_SUCCESS) - return status; - - return EFI_SUCCESS; -} - -/* - * On success we return a pointer to a boot_params structure, and NULL - * on failure. - */ -struct boot_params *efi_main(efi_handle_t handle, - efi_system_table_t *sys_table_arg, - struct boot_params *boot_params) -{ - struct desc_ptr *gdt = NULL; - struct setup_header *hdr = &boot_params->hdr; - efi_status_t status; - struct desc_struct *desc; - unsigned long cmdline_paddr; - - sys_table = sys_table_arg; - - /* Check if we were booted by the EFI firmware */ - if (sys_table->hdr.signature != EFI_SYSTEM_TABLE_SIGNATURE) - goto fail; - - /* - * make_boot_params() may have been called before efi_main(), in which - * case this is the second time we parse the cmdline. This is ok, - * parsing the cmdline multiple times does not have side-effects. - */ - cmdline_paddr = ((u64)hdr->cmd_line_ptr | - ((u64)boot_params->ext_cmd_line_ptr << 32)); - efi_parse_options((char *)cmdline_paddr); - - /* - * If the boot loader gave us a value for secure_boot then we use that, - * otherwise we ask the BIOS. - */ - if (boot_params->secure_boot == efi_secureboot_mode_unset) - boot_params->secure_boot = efi_get_secureboot(); - - /* Ask the firmware to clear memory on unclean shutdown */ - efi_enable_reset_attack_mitigation(); - - efi_random_get_seed(); - - efi_retrieve_tpm2_eventlog(); - - setup_graphics(boot_params); - - setup_efi_pci(boot_params); - - setup_quirks(boot_params); - - status = efi_bs_call(allocate_pool, EFI_LOADER_DATA, sizeof(*gdt), - (void **)&gdt); - if (status != EFI_SUCCESS) { - efi_printk("Failed to allocate memory for 'gdt' structure\n"); - goto fail; - } - - gdt->size = 0x800; - status = efi_low_alloc(gdt->size, 8, (unsigned long *)&gdt->address); - if (status != EFI_SUCCESS) { - efi_printk("Failed to allocate memory for 'gdt'\n"); - goto fail; - } - - /* - * If the kernel isn't already loaded at the preferred load - * address, relocate it. - */ - if (hdr->pref_address != hdr->code32_start) { - unsigned long bzimage_addr = hdr->code32_start; - status = efi_relocate_kernel(&bzimage_addr, - hdr->init_size, hdr->init_size, - hdr->pref_address, - hdr->kernel_alignment, - LOAD_PHYSICAL_ADDR); - if (status != EFI_SUCCESS) { - efi_printk("efi_relocate_kernel() failed!\n"); - goto fail; - } - - hdr->pref_address = hdr->code32_start; - hdr->code32_start = bzimage_addr; - } - - status = exit_boot(boot_params, handle); - if (status != EFI_SUCCESS) { - efi_printk("exit_boot() failed!\n"); - goto fail; - } - - memset((char *)gdt->address, 0x0, gdt->size); - desc = (struct desc_struct *)gdt->address; - - /* The first GDT is a dummy. */ - desc++; - - if (IS_ENABLED(CONFIG_X86_64)) { - /* __KERNEL32_CS */ - desc->limit0 = 0xffff; - desc->base0 = 0x0000; - desc->base1 = 0x0000; - desc->type = SEG_TYPE_CODE | SEG_TYPE_EXEC_READ; - desc->s = DESC_TYPE_CODE_DATA; - desc->dpl = 0; - desc->p = 1; - desc->limit1 = 0xf; - desc->avl = 0; - desc->l = 0; - desc->d = SEG_OP_SIZE_32BIT; - desc->g = SEG_GRANULARITY_4KB; - desc->base2 = 0x00; - - desc++; - } else { - /* Second entry is unused on 32-bit */ - desc++; - } - - /* __KERNEL_CS */ - desc->limit0 = 0xffff; - desc->base0 = 0x0000; - desc->base1 = 0x0000; - desc->type = SEG_TYPE_CODE | SEG_TYPE_EXEC_READ; - desc->s = DESC_TYPE_CODE_DATA; - desc->dpl = 0; - desc->p = 1; - desc->limit1 = 0xf; - desc->avl = 0; - - if (IS_ENABLED(CONFIG_X86_64)) { - desc->l = 1; - desc->d = 0; - } else { - desc->l = 0; - desc->d = SEG_OP_SIZE_32BIT; - } - desc->g = SEG_GRANULARITY_4KB; - desc->base2 = 0x00; - desc++; - - /* __KERNEL_DS */ - desc->limit0 = 0xffff; - desc->base0 = 0x0000; - desc->base1 = 0x0000; - desc->type = SEG_TYPE_DATA | SEG_TYPE_READ_WRITE; - desc->s = DESC_TYPE_CODE_DATA; - desc->dpl = 0; - desc->p = 1; - desc->limit1 = 0xf; - desc->avl = 0; - desc->l = 0; - desc->d = SEG_OP_SIZE_32BIT; - desc->g = SEG_GRANULARITY_4KB; - desc->base2 = 0x00; - desc++; - - if (IS_ENABLED(CONFIG_X86_64)) { - /* Task segment value */ - desc->limit0 = 0x0000; - desc->base0 = 0x0000; - desc->base1 = 0x0000; - desc->type = SEG_TYPE_TSS; - desc->s = 0; - desc->dpl = 0; - desc->p = 1; - desc->limit1 = 0x0; - desc->avl = 0; - desc->l = 0; - desc->d = 0; - desc->g = SEG_GRANULARITY_4KB; - desc->base2 = 0x00; - desc++; - } - - asm volatile("cli"); - asm volatile ("lgdt %0" : : "m" (*gdt)); - - return boot_params; -fail: - efi_printk("efi_main() failed!\n"); - - for (;;) - asm("hlt"); -} diff --git a/arch/x86/boot/compressed/eboot.h b/arch/x86/boot/compressed/eboot.h deleted file mode 100644 index 99f35343d443..000000000000 --- a/arch/x86/boot/compressed/eboot.h +++ /dev/null @@ -1,31 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef BOOT_COMPRESSED_EBOOT_H -#define BOOT_COMPRESSED_EBOOT_H - -#define SEG_TYPE_DATA (0 << 3) -#define SEG_TYPE_READ_WRITE (1 << 1) -#define SEG_TYPE_CODE (1 << 3) -#define SEG_TYPE_EXEC_READ (1 << 1) -#define SEG_TYPE_TSS ((1 << 3) | (1 << 0)) -#define SEG_OP_SIZE_32BIT (1 << 0) -#define SEG_GRANULARITY_4KB (1 << 0) - -#define DESC_TYPE_CODE_DATA (1 << 0) - -typedef union efi_uga_draw_protocol efi_uga_draw_protocol_t; - -union efi_uga_draw_protocol { - struct { - efi_status_t (__efiapi *get_mode)(efi_uga_draw_protocol_t *, - u32*, u32*, u32*, u32*); - void *set_mode; - void *blt; - }; - struct { - u32 get_mode; - u32 set_mode; - u32 blt; - } mixed_mode; -}; - -#endif /* BOOT_COMPRESSED_EBOOT_H */ diff --git a/arch/x86/boot/compressed/efi_thunk_64.S b/arch/x86/boot/compressed/efi_thunk_64.S index 8fb7f6799c52..2b2049259619 100644 --- a/arch/x86/boot/compressed/efi_thunk_64.S +++ b/arch/x86/boot/compressed/efi_thunk_64.S @@ -54,11 +54,16 @@ SYM_FUNC_START(__efi64_thunk) * Switch to gdt with 32-bit segments. This is the firmware GDT * that was installed when the kernel started executing. This * pointer was saved at the EFI stub entry point in head_64.S. + * + * Pass the saved DS selector to the 32-bit code, and use far return to + * restore the saved CS selector. */ leaq efi32_boot_gdt(%rip), %rax lgdt (%rax) - pushq $__KERNEL_CS + movzwl efi32_boot_ds(%rip), %edx + movzwq efi32_boot_cs(%rip), %rax + pushq %rax leaq efi_enter32(%rip), %rax pushq %rax lretq @@ -73,6 +78,10 @@ SYM_FUNC_START(__efi64_thunk) movl %ebx, %es pop %rbx movl %ebx, %ds + /* Clear out 32-bit selector from FS and GS */ + xorl %ebx, %ebx + movl %ebx, %fs + movl %ebx, %gs /* * Convert 32-bit status code into 64-bit. @@ -92,10 +101,12 @@ SYM_FUNC_END(__efi64_thunk) * The stack should represent the 32-bit calling convention. */ SYM_FUNC_START_LOCAL(efi_enter32) - movl $__KERNEL_DS, %eax - movl %eax, %ds - movl %eax, %es - movl %eax, %ss + /* Load firmware selector into data and stack segment registers */ + movl %edx, %ds + movl %edx, %es + movl %edx, %fs + movl %edx, %gs + movl %edx, %ss /* Reload pgtables */ movl %cr3, %eax @@ -157,6 +168,14 @@ SYM_DATA_START(efi32_boot_gdt) .quad 0 SYM_DATA_END(efi32_boot_gdt) +SYM_DATA_START(efi32_boot_cs) + .word 0 +SYM_DATA_END(efi32_boot_cs) + +SYM_DATA_START(efi32_boot_ds) + .word 0 +SYM_DATA_END(efi32_boot_ds) + SYM_DATA_START(efi_gdt64) .word efi_gdt64_end - efi_gdt64 .long 0 /* Filled out by user */ diff --git a/arch/x86/boot/compressed/head_32.S b/arch/x86/boot/compressed/head_32.S index 73f17d0544dd..ab3307036ba4 100644 --- a/arch/x86/boot/compressed/head_32.S +++ b/arch/x86/boot/compressed/head_32.S @@ -63,21 +63,7 @@ __HEAD SYM_FUNC_START(startup_32) cld - /* - * Test KEEP_SEGMENTS flag to see if the bootloader is asking - * us to not reload segments - */ - testb $KEEP_SEGMENTS, BP_loadflags(%esi) - jnz 1f - cli - movl $__BOOT_DS, %eax - movl %eax, %ds - movl %eax, %es - movl %eax, %fs - movl %eax, %gs - movl %eax, %ss -1: /* * Calculate the delta between where we were compiled to run @@ -89,32 +75,59 @@ SYM_FUNC_START(startup_32) */ leal (BP_scratch+4)(%esi), %esp call 1f -1: popl %ebp - subl $1b, %ebp +1: popl %edx + subl $1b, %edx + + /* Load new GDT */ + leal gdt(%edx), %eax + movl %eax, 2(%eax) + lgdt (%eax) + + /* Load segment registers with our descriptors */ + movl $__BOOT_DS, %eax + movl %eax, %ds + movl %eax, %es + movl %eax, %fs + movl %eax, %gs + movl %eax, %ss /* - * %ebp contains the address we are loaded at by the boot loader and %ebx + * %edx contains the address we are loaded at by the boot loader and %ebx * contains the address where we should move the kernel image temporarily - * for safe in-place decompression. + * for safe in-place decompression. %ebp contains the address that the kernel + * will be decompressed to. */ #ifdef CONFIG_RELOCATABLE - movl %ebp, %ebx + movl %edx, %ebx + +#ifdef CONFIG_EFI_STUB +/* + * If we were loaded via the EFI LoadImage service, startup_32() will be at an + * offset to the start of the space allocated for the image. efi_pe_entry() will + * set up image_offset to tell us where the image actually starts, so that we + * can use the full available buffer. + * image_offset = startup_32 - image_base + * Otherwise image_offset will be zero and has no effect on the calculations. + */ + subl image_offset(%edx), %ebx +#endif + movl BP_kernel_alignment(%esi), %eax decl %eax addl %eax, %ebx notl %eax andl %eax, %ebx cmpl $LOAD_PHYSICAL_ADDR, %ebx - jge 1f + jae 1f #endif movl $LOAD_PHYSICAL_ADDR, %ebx 1: + movl %ebx, %ebp // Save the output address for later /* Target address to relocate to for decompression */ - movl BP_init_size(%esi), %eax - subl $_end, %eax - addl %eax, %ebx + addl BP_init_size(%esi), %ebx + subl $_end, %ebx /* Set up the stack */ leal boot_stack_end(%ebx), %esp @@ -128,7 +141,7 @@ SYM_FUNC_START(startup_32) * where decompression in place becomes safe. */ pushl %esi - leal (_bss-4)(%ebp), %esi + leal (_bss-4)(%edx), %esi leal (_bss-4)(%ebx), %edi movl $(_bss - startup_32), %ecx shrl $2, %ecx @@ -137,6 +150,15 @@ SYM_FUNC_START(startup_32) cld popl %esi + /* + * The GDT may get overwritten either during the copy we just did or + * during extract_kernel below. To avoid any issues, repoint the GDTR + * to the new copy of the GDT. + */ + leal gdt(%ebx), %eax + movl %eax, 2(%eax) + lgdt (%eax) + /* * Jump to the relocated address. */ @@ -148,9 +170,8 @@ SYM_FUNC_END(startup_32) SYM_FUNC_START(efi32_stub_entry) SYM_FUNC_START_ALIAS(efi_stub_entry) add $0x4, %esp + movl 8(%esp), %esi /* save boot_params pointer */ call efi_main - movl %eax, %esi - movl BP_code32_start(%esi), %eax leal startup_32(%eax), %eax jmp *%eax SYM_FUNC_END(efi32_stub_entry) @@ -189,9 +210,7 @@ SYM_FUNC_START_LOCAL_NOALIGN(.Lrelocated) /* push arguments for extract_kernel: */ pushl $z_output_len /* decompressed length, end of relocs */ - leal _end(%ebx), %eax - subl BP_init_size(%esi), %eax - pushl %eax /* output address */ + pushl %ebp /* output address */ pushl $z_input_len /* input_len */ leal input_data(%ebx), %eax @@ -209,6 +228,21 @@ SYM_FUNC_START_LOCAL_NOALIGN(.Lrelocated) jmp *%eax SYM_FUNC_END(.Lrelocated) + .data + .balign 8 +SYM_DATA_START_LOCAL(gdt) + .word gdt_end - gdt - 1 + .long 0 + .word 0 + .quad 0x0000000000000000 /* Reserved */ + .quad 0x00cf9a000000ffff /* __KERNEL_CS */ + .quad 0x00cf92000000ffff /* __KERNEL_DS */ +SYM_DATA_END_LABEL(gdt, SYM_L_LOCAL, gdt_end) + +#ifdef CONFIG_EFI_STUB +SYM_DATA(image_offset, .long 0) +#endif + /* * Stack and heap for uncompression */ diff --git a/arch/x86/boot/compressed/head_64.S b/arch/x86/boot/compressed/head_64.S index 1f1f6c8139b3..4f7e6b84be07 100644 --- a/arch/x86/boot/compressed/head_64.S +++ b/arch/x86/boot/compressed/head_64.S @@ -53,19 +53,7 @@ SYM_FUNC_START(startup_32) * all need to be under the 4G limit. */ cld - /* - * Test KEEP_SEGMENTS flag to see if the bootloader is asking - * us to not reload segments - */ - testb $KEEP_SEGMENTS, BP_loadflags(%esi) - jnz 1f - cli - movl $(__BOOT_DS), %eax - movl %eax, %ds - movl %eax, %es - movl %eax, %ss -1: /* * Calculate the delta between where we were compiled to run @@ -80,10 +68,21 @@ SYM_FUNC_START(startup_32) 1: popl %ebp subl $1b, %ebp + /* Load new GDT with the 64bit segments using 32bit descriptor */ + leal gdt(%ebp), %eax + movl %eax, 2(%eax) + lgdt (%eax) + + /* Load segment registers with our descriptors */ + movl $__BOOT_DS, %eax + movl %eax, %ds + movl %eax, %es + movl %eax, %fs + movl %eax, %gs + movl %eax, %ss + /* setup a stack and make sure cpu supports long mode. */ - movl $boot_stack_end, %eax - addl %ebp, %eax - movl %eax, %esp + leal boot_stack_end(%ebp), %esp call verify_cpu testl %eax, %eax @@ -100,30 +99,38 @@ SYM_FUNC_START(startup_32) #ifdef CONFIG_RELOCATABLE movl %ebp, %ebx + +#ifdef CONFIG_EFI_STUB +/* + * If we were loaded via the EFI LoadImage service, startup_32 will be at an + * offset to the start of the space allocated for the image. efi_pe_entry will + * set up image_offset to tell us where the image actually starts, so that we + * can use the full available buffer. + * image_offset = startup_32 - image_base + * Otherwise image_offset will be zero and has no effect on the calculations. + */ + subl image_offset(%ebp), %ebx +#endif + movl BP_kernel_alignment(%esi), %eax decl %eax addl %eax, %ebx notl %eax andl %eax, %ebx cmpl $LOAD_PHYSICAL_ADDR, %ebx - jge 1f + jae 1f #endif movl $LOAD_PHYSICAL_ADDR, %ebx 1: /* Target address to relocate to for decompression */ - movl BP_init_size(%esi), %eax - subl $_end, %eax - addl %eax, %ebx + addl BP_init_size(%esi), %ebx + subl $_end, %ebx /* * Prepare for entering 64 bit mode */ - /* Load new GDT with the 64bit segments using 32bit descriptor */ - addl %ebp, gdt+2(%ebp) - lgdt gdt(%ebp) - /* Enable PAE mode */ movl %cr4, %eax orl $X86_CR4_PAE, %eax @@ -212,8 +219,13 @@ SYM_FUNC_START(startup_32) cmp $0, %edi jz 1f leal efi64_stub_entry(%ebp), %eax - movl %esi, %edx movl efi32_boot_args+4(%ebp), %esi + movl efi32_boot_args+8(%ebp), %edx // saved bootparams pointer + cmpl $0, %edx + jnz 1f + leal efi_pe_entry(%ebp), %eax + movl %edi, %ecx // MS calling convention + movl %esi, %edx 1: #endif pushl %eax @@ -238,11 +250,17 @@ SYM_FUNC_START(efi32_stub_entry) 1: pop %ebp subl $1b, %ebp + movl %esi, efi32_boot_args+8(%ebp) +SYM_INNER_LABEL(efi32_pe_stub_entry, SYM_L_LOCAL) movl %ecx, efi32_boot_args(%ebp) movl %edx, efi32_boot_args+4(%ebp) - sgdtl efi32_boot_gdt(%ebp) movb $0, efi_is64(%ebp) + /* Save firmware GDTR and code/data selectors */ + sgdtl efi32_boot_gdt(%ebp) + movw %cs, efi32_boot_cs(%ebp) + movw %ds, efi32_boot_ds(%ebp) + /* Disable paging */ movl %cr0, %eax btrl $X86_CR0_PG_BIT, %eax @@ -266,6 +284,9 @@ SYM_CODE_START(startup_64) * and command line. */ + cld + cli + /* Setup data segments. */ xorl %eax, %eax movl %eax, %ds @@ -290,13 +311,27 @@ SYM_CODE_START(startup_64) /* Start with the delta to where the kernel will run at. */ #ifdef CONFIG_RELOCATABLE leaq startup_32(%rip) /* - $startup_32 */, %rbp + +#ifdef CONFIG_EFI_STUB +/* + * If we were loaded via the EFI LoadImage service, startup_32 will be at an + * offset to the start of the space allocated for the image. efi_pe_entry will + * set up image_offset to tell us where the image actually starts, so that we + * can use the full available buffer. + * image_offset = startup_32 - image_base + * Otherwise image_offset will be zero and has no effect on the calculations. + */ + movl image_offset(%rip), %eax + subq %rax, %rbp +#endif + movl BP_kernel_alignment(%rsi), %eax decl %eax addq %rax, %rbp notq %rax andq %rax, %rbp cmpq $LOAD_PHYSICAL_ADDR, %rbp - jge 1f + jae 1f #endif movq $LOAD_PHYSICAL_ADDR, %rbp 1: @@ -354,9 +389,9 @@ SYM_CODE_START(startup_64) */ /* Make sure we have GDT with 32-bit code segment */ - leaq gdt(%rip), %rax - movq %rax, gdt64+2(%rip) - lgdt gdt64(%rip) + leaq gdt64(%rip), %rax + addq %rax, 2(%rax) + lgdt (%rax) /* * paging_prepare() sets up the trampoline and checks if we need to @@ -441,6 +476,16 @@ trampoline_return: cld popq %rsi + /* + * The GDT may get overwritten either during the copy we just did or + * during extract_kernel below. To avoid any issues, repoint the GDTR + * to the new copy of the GDT. + */ + leaq gdt64(%rbx), %rax + leaq gdt(%rbx), %rdx + movq %rdx, 2(%rax) + lgdt (%rax) + /* * Jump to the relocated address. */ @@ -453,9 +498,9 @@ SYM_CODE_END(startup_64) SYM_FUNC_START(efi64_stub_entry) SYM_FUNC_START_ALIAS(efi_stub_entry) and $~0xf, %rsp /* realign the stack */ + movq %rdx, %rbx /* save boot_params pointer */ call efi_main - movq %rax,%rsi - movl BP_code32_start(%esi), %eax + movq %rbx,%rsi leaq startup_64(%rax), %rax jmp *%rax SYM_FUNC_END(efi64_stub_entry) @@ -484,7 +529,7 @@ SYM_FUNC_START_LOCAL_NOALIGN(.Lrelocated) leaq input_data(%rip), %rdx /* input_data */ movl $z_input_len, %ecx /* input_len */ movq %rbp, %r8 /* output target address */ - movq $z_output_len, %r9 /* decompressed length, end of relocs */ + movl $z_output_len, %r9d /* decompressed length, end of relocs */ call extract_kernel /* returns kernel location in %rax */ popq %rsi @@ -613,13 +658,13 @@ SYM_FUNC_END(.Lno_longmode) .data SYM_DATA_START_LOCAL(gdt64) - .word gdt_end - gdt - .quad 0 + .word gdt_end - gdt - 1 + .quad gdt - gdt64 SYM_DATA_END(gdt64) .balign 8 SYM_DATA_START_LOCAL(gdt) - .word gdt_end - gdt - .long gdt + .word gdt_end - gdt - 1 + .long 0 .word 0 .quad 0x00cf9a000000ffff /* __KERNEL32_CS */ .quad 0x00af9a000000ffff /* __KERNEL_CS */ @@ -628,9 +673,97 @@ SYM_DATA_START_LOCAL(gdt) .quad 0x0000000000000000 /* TS continued */ SYM_DATA_END_LABEL(gdt, SYM_L_LOCAL, gdt_end) +#ifdef CONFIG_EFI_STUB +SYM_DATA(image_offset, .long 0) +#endif + #ifdef CONFIG_EFI_MIXED -SYM_DATA_LOCAL(efi32_boot_args, .long 0, 0) +SYM_DATA_LOCAL(efi32_boot_args, .long 0, 0, 0) SYM_DATA(efi_is64, .byte 1) + +#define ST32_boottime 60 // offsetof(efi_system_table_32_t, boottime) +#define BS32_handle_protocol 88 // offsetof(efi_boot_services_32_t, handle_protocol) +#define LI32_image_base 32 // offsetof(efi_loaded_image_32_t, image_base) + + .text + .code32 +SYM_FUNC_START(efi32_pe_entry) +/* + * efi_status_t efi32_pe_entry(efi_handle_t image_handle, + * efi_system_table_32_t *sys_table) + */ + + pushl %ebp + movl %esp, %ebp + pushl %eax // dummy push to allocate loaded_image + + pushl %ebx // save callee-save registers + pushl %edi + + call verify_cpu // check for long mode support + testl %eax, %eax + movl $0x80000003, %eax // EFI_UNSUPPORTED + jnz 2f + + call 1f +1: pop %ebx + subl $1b, %ebx + + /* Get the loaded image protocol pointer from the image handle */ + leal -4(%ebp), %eax + pushl %eax // &loaded_image + leal loaded_image_proto(%ebx), %eax + pushl %eax // pass the GUID address + pushl 8(%ebp) // pass the image handle + + /* + * Note the alignment of the stack frame. + * sys_table + * handle <-- 16-byte aligned on entry by ABI + * return address + * frame pointer + * loaded_image <-- local variable + * saved %ebx <-- 16-byte aligned here + * saved %edi + * &loaded_image + * &loaded_image_proto + * handle <-- 16-byte aligned for call to handle_protocol + */ + + movl 12(%ebp), %eax // sys_table + movl ST32_boottime(%eax), %eax // sys_table->boottime + call *BS32_handle_protocol(%eax) // sys_table->boottime->handle_protocol + addl $12, %esp // restore argument space + testl %eax, %eax + jnz 2f + + movl 8(%ebp), %ecx // image_handle + movl 12(%ebp), %edx // sys_table + movl -4(%ebp), %esi // loaded_image + movl LI32_image_base(%esi), %esi // loaded_image->image_base + movl %ebx, %ebp // startup_32 for efi32_pe_stub_entry + /* + * We need to set the image_offset variable here since startup_32() will + * use it before we get to the 64-bit efi_pe_entry() in C code. + */ + subl %esi, %ebx + movl %ebx, image_offset(%ebp) // save image_offset + jmp efi32_pe_stub_entry + +2: popl %edi // restore callee-save registers + popl %ebx + leave + ret +SYM_FUNC_END(efi32_pe_entry) + + .section ".rodata" + /* EFI loaded image protocol GUID */ + .balign 4 +SYM_DATA_START_LOCAL(loaded_image_proto) + .long 0x5b1b31a1 + .word 0x9562, 0x11d2 + .byte 0x8e, 0x3f, 0x00, 0xa0, 0xc9, 0x69, 0x72, 0x3b +SYM_DATA_END(loaded_image_proto) #endif /* @@ -647,7 +780,7 @@ SYM_DATA_END_LABEL(boot_stack, SYM_L_LOCAL, boot_stack_end) /* * Space for page tables (not in .bss so not zeroed) */ - .section ".pgtable","a",@nobits + .section ".pgtable","aw",@nobits .balign 4096 SYM_DATA_LOCAL(pgtable, .fill BOOT_PGT_SIZE, 1, 0) diff --git a/arch/x86/boot/compressed/misc.h b/arch/x86/boot/compressed/misc.h index c8181392f70d..726e264410ff 100644 --- a/arch/x86/boot/compressed/misc.h +++ b/arch/x86/boot/compressed/misc.h @@ -59,7 +59,7 @@ void __puthex(unsigned long value); static inline void debug_putstr(const char *s) { } -static inline void debug_puthex(const char *s) +static inline void debug_puthex(unsigned long value) { } #define debug_putaddr(x) /* */ diff --git a/arch/x86/boot/header.S b/arch/x86/boot/header.S index 97d9b6d6c1af..735ad7f21ab0 100644 --- a/arch/x86/boot/header.S +++ b/arch/x86/boot/header.S @@ -15,7 +15,7 @@ * hex while segment addresses are written as segment:offset. * */ - +#include <linux/pe.h> #include <asm/segment.h> #include <asm/boot.h> #include <asm/page_types.h> @@ -43,8 +43,7 @@ SYSSEG = 0x1000 /* historical load address >> 4 */ bootsect_start: #ifdef CONFIG_EFI_STUB # "MZ", MS-DOS header - .byte 0x4d - .byte 0x5a + .word MZ_MAGIC #endif # Normalize the start address @@ -97,39 +96,30 @@ bugger_off_msg: #ifdef CONFIG_EFI_STUB pe_header: - .ascii "PE" - .word 0 + .long PE_MAGIC coff_header: #ifdef CONFIG_X86_32 - .word 0x14c # i386 + .set image_file_add_flags, IMAGE_FILE_32BIT_MACHINE + .set pe_opt_magic, PE_OPT_MAGIC_PE32 + .word IMAGE_FILE_MACHINE_I386 #else - .word 0x8664 # x86-64 + .set image_file_add_flags, 0 + .set pe_opt_magic, PE_OPT_MAGIC_PE32PLUS + .word IMAGE_FILE_MACHINE_AMD64 #endif - .word 4 # nr_sections + .word section_count # nr_sections .long 0 # TimeDateStamp .long 0 # PointerToSymbolTable .long 1 # NumberOfSymbols .word section_table - optional_header # SizeOfOptionalHeader -#ifdef CONFIG_X86_32 - .word 0x306 # Characteristics. - # IMAGE_FILE_32BIT_MACHINE | - # IMAGE_FILE_DEBUG_STRIPPED | - # IMAGE_FILE_EXECUTABLE_IMAGE | - # IMAGE_FILE_LINE_NUMS_STRIPPED -#else - .word 0x206 # Characteristics - # IMAGE_FILE_DEBUG_STRIPPED | - # IMAGE_FILE_EXECUTABLE_IMAGE | - # IMAGE_FILE_LINE_NUMS_STRIPPED -#endif + .word IMAGE_FILE_EXECUTABLE_IMAGE | \ + image_file_add_flags | \ + IMAGE_FILE_DEBUG_STRIPPED | \ + IMAGE_FILE_LINE_NUMS_STRIPPED # Characteristics optional_header: -#ifdef CONFIG_X86_32 - .word 0x10b # PE32 format -#else - .word 0x20b # PE32+ format -#endif + .word pe_opt_magic .byte 0x02 # MajorLinkerVersion .byte 0x14 # MinorLinkerVersion @@ -148,17 +138,19 @@ optional_header: #endif extra_header_fields: + # PE specification requires ImageBase to be 64k aligned + .set image_base, (LOAD_PHYSICAL_ADDR + 0xffff) & ~0xffff #ifdef CONFIG_X86_32 - .long 0 # ImageBase + .long image_base # ImageBase #else - .quad 0 # ImageBase + .quad image_base # ImageBase #endif .long 0x20 # SectionAlignment .long 0x20 # FileAlignment .word 0 # MajorOperatingSystemVersion .word 0 # MinorOperatingSystemVersion - .word 0 # MajorImageVersion - .word 0 # MinorImageVersion + .word LINUX_EFISTUB_MAJOR_VERSION # MajorImageVersion + .word LINUX_EFISTUB_MINOR_VERSION # MinorImageVersion .word 0 # MajorSubsystemVersion .word 0 # MinorSubsystemVersion .long 0 # Win32VersionValue @@ -170,7 +162,7 @@ extra_header_fields: .long 0x200 # SizeOfHeaders .long 0 # CheckSum - .word 0xa # Subsystem (EFI application) + .word IMAGE_SUBSYSTEM_EFI_APPLICATION # Subsystem (EFI application) .word 0 # DllCharacteristics #ifdef CONFIG_X86_32 .long 0 # SizeOfStackReserve @@ -184,7 +176,7 @@ extra_header_fields: .quad 0 # SizeOfHeapCommit #endif .long 0 # LoaderFlags - .long 0x6 # NumberOfRvaAndSizes + .long (section_table - .) / 8 # NumberOfRvaAndSizes .quad 0 # ExportTable .quad 0 # ImportTable @@ -210,7 +202,10 @@ section_table: .long 0 # PointerToLineNumbers .word 0 # NumberOfRelocations .word 0 # NumberOfLineNumbers - .long 0x60500020 # Characteristics (section flags) + .long IMAGE_SCN_CNT_CODE | \ + IMAGE_SCN_MEM_READ | \ + IMAGE_SCN_MEM_EXECUTE | \ + IMAGE_SCN_ALIGN_16BYTES # Characteristics # # The EFI application loader requires a relocation section @@ -228,45 +223,53 @@ section_table: .long 0 # PointerToLineNumbers .word 0 # NumberOfRelocations .word 0 # NumberOfLineNumbers - .long 0x42100040 # Characteristics (section flags) + .long IMAGE_SCN_CNT_INITIALIZED_DATA | \ + IMAGE_SCN_MEM_READ | \ + IMAGE_SCN_MEM_DISCARDABLE | \ + IMAGE_SCN_ALIGN_1BYTES # Characteristics +#ifdef CONFIG_EFI_MIXED # # The offset & size fields are filled in by build.c. # - .ascii ".text" - .byte 0 - .byte 0 - .byte 0 + .asciz ".compat" .long 0 - .long 0x0 # startup_{32,64} + .long 0x0 .long 0 # Size of initialized data # on disk - .long 0x0 # startup_{32,64} + .long 0x0 .long 0 # PointerToRelocations .long 0 # PointerToLineNumbers .word 0 # NumberOfRelocations .word 0 # NumberOfLineNumbers - .long 0x60500020 # Characteristics (section flags) + .long IMAGE_SCN_CNT_INITIALIZED_DATA | \ + IMAGE_SCN_MEM_READ | \ + IMAGE_SCN_MEM_DISCARDABLE | \ + IMAGE_SCN_ALIGN_1BYTES # Characteristics +#endif # # The offset & size fields are filled in by build.c. # - .ascii ".bss" - .byte 0 + .ascii ".text" .byte 0 .byte 0 .byte 0 .long 0 - .long 0x0 + .long 0x0 # startup_{32,64} .long 0 # Size of initialized data # on disk - .long 0x0 + .long 0x0 # startup_{32,64} .long 0 # PointerToRelocations .long 0 # PointerToLineNumbers .word 0 # NumberOfRelocations .word 0 # NumberOfLineNumbers - .long 0xc8000080 # Characteristics (section flags) + .long IMAGE_SCN_CNT_CODE | \ + IMAGE_SCN_MEM_READ | \ + IMAGE_SCN_MEM_EXECUTE | \ + IMAGE_SCN_ALIGN_16BYTES # Characteristics + .set section_count, (. - section_table) / 40 #endif /* CONFIG_EFI_STUB */ # Kernel attributes; used by setup. This is part 1 of the diff --git a/arch/x86/boot/setup.ld b/arch/x86/boot/setup.ld index 3da1c37c6dd5..24c95522f231 100644 --- a/arch/x86/boot/setup.ld +++ b/arch/x86/boot/setup.ld @@ -52,7 +52,6 @@ SECTIONS _end = .; /DISCARD/ : { - *(.eh_frame) *(.note*) } diff --git a/arch/x86/boot/tools/build.c b/arch/x86/boot/tools/build.c index 55e669d29e54..8f8c8e386cea 100644 --- a/arch/x86/boot/tools/build.c +++ b/arch/x86/boot/tools/build.c @@ -53,11 +53,20 @@ u8 buf[SETUP_SECT_MAX*512]; #define PECOFF_RELOC_RESERVE 0x20 +#ifdef CONFIG_EFI_MIXED +#define PECOFF_COMPAT_RESERVE 0x20 +#else +#define PECOFF_COMPAT_RESERVE 0x0 +#endif + unsigned long efi32_stub_entry; unsigned long efi64_stub_entry; unsigned long efi_pe_entry; +unsigned long efi32_pe_entry; unsigned long kernel_info; unsigned long startup_64; +unsigned long _ehead; +unsigned long _end; /*----------------------------------------------------------------------*/ @@ -189,7 +198,10 @@ static void update_pecoff_section_header(char *section_name, u32 offset, u32 siz static void update_pecoff_setup_and_reloc(unsigned int size) { u32 setup_offset = 0x200; - u32 reloc_offset = size - PECOFF_RELOC_RESERVE; + u32 reloc_offset = size - PECOFF_RELOC_RESERVE - PECOFF_COMPAT_RESERVE; +#ifdef CONFIG_EFI_MIXED + u32 compat_offset = reloc_offset + PECOFF_RELOC_RESERVE; +#endif u32 setup_size = reloc_offset - setup_offset; update_pecoff_section_header(".setup", setup_offset, setup_size); @@ -201,43 +213,59 @@ static void update_pecoff_setup_and_reloc(unsigned int size) */ put_unaligned_le32(reloc_offset + 10, &buf[reloc_offset]); put_unaligned_le32(10, &buf[reloc_offset + 4]); + +#ifdef CONFIG_EFI_MIXED + update_pecoff_section_header(".compat", compat_offset, PECOFF_COMPAT_RESERVE); + + /* + * Put the IA-32 machine type (0x14c) and the associated entry point + * address in the .compat section, so loaders can figure out which other + * execution modes this image supports. + */ + buf[compat_offset] = 0x1; + buf[compat_offset + 1] = 0x8; + put_unaligned_le16(0x14c, &buf[compat_offset + 2]); + put_unaligned_le32(efi32_pe_entry + size, &buf[compat_offset + 4]); +#endif } -static void update_pecoff_text(unsigned int text_start, unsigned int file_sz) +static void update_pecoff_text(unsigned int text_start, unsigned int file_sz, + unsigned int init_sz) { unsigned int pe_header; unsigned int text_sz = file_sz - text_start; + unsigned int bss_sz = init_sz - file_sz; pe_header = get_unaligned_le32(&buf[0x3c]); /* + * The PE/COFF loader may load the image at an address which is + * misaligned with respect to the kernel_alignment field in the setup + * header. + * + * In order to avoid relocating the kernel to correct the misalignment, + * add slack to allow the buffer to be aligned within the declared size + * of the image. + */ + bss_sz += CONFIG_PHYSICAL_ALIGN; + init_sz += CONFIG_PHYSICAL_ALIGN; + + /* * Size of code: Subtract the size of the first sector (512 bytes) * which includes the header. */ - put_unaligned_le32(file_sz - 512, &buf[pe_header + 0x1c]); + put_unaligned_le32(file_sz - 512 + bss_sz, &buf[pe_header + 0x1c]); + + /* Size of image */ + put_unaligned_le32(init_sz, &buf[pe_header + 0x50]); /* * Address of entry point for PE/COFF executable */ put_unaligned_le32(text_start + efi_pe_entry, &buf[pe_header + 0x28]); - update_pecoff_section_header(".text", text_start, text_sz); -} - -static void update_pecoff_bss(unsigned int file_sz, unsigned int init_sz) -{ - unsigned int pe_header; - unsigned int bss_sz = init_sz - file_sz; - - pe_header = get_unaligned_le32(&buf[0x3c]); - - /* Size of uninitialized data */ - put_unaligned_le32(bss_sz, &buf[pe_header + 0x24]); - - /* Size of image */ - put_unaligned_le32(init_sz, &buf[pe_header + 0x50]); - - update_pecoff_section_header_fields(".bss", file_sz, bss_sz, 0, 0); + update_pecoff_section_header_fields(".text", text_start, text_sz + bss_sz, + text_sz, text_start); } static int reserve_pecoff_reloc_section(int c) @@ -278,9 +306,8 @@ static void efi_stub_entry_update(void) static inline void update_pecoff_setup_and_reloc(unsigned int size) {} static inline void update_pecoff_text(unsigned int text_start, - unsigned int file_sz) {} -static inline void update_pecoff_bss(unsigned int file_sz, - unsigned int init_sz) {} + unsigned int file_sz, + unsigned int init_sz) {} static inline void efi_stub_defaults(void) {} static inline void efi_stub_entry_update(void) {} @@ -290,6 +317,12 @@ static inline int reserve_pecoff_reloc_section(int c) } #endif /* CONFIG_EFI_STUB */ +static int reserve_pecoff_compat_section(int c) +{ + /* Reserve 0x20 bytes for .compat section */ + memset(buf+c, 0, PECOFF_COMPAT_RESERVE); + return PECOFF_COMPAT_RESERVE; +} /* * Parse zoffset.h and find the entry points. We could just #include zoffset.h @@ -322,8 +355,11 @@ static void parse_zoffset(char *fname) PARSE_ZOFS(p, efi32_stub_entry); PARSE_ZOFS(p, efi64_stub_entry); PARSE_ZOFS(p, efi_pe_entry); + PARSE_ZOFS(p, efi32_pe_entry); PARSE_ZOFS(p, kernel_info); PARSE_ZOFS(p, startup_64); + PARSE_ZOFS(p, _ehead); + PARSE_ZOFS(p, _end); p = strchr(p, '\n'); while (p && (*p == '\r' || *p == '\n')) @@ -365,6 +401,7 @@ int main(int argc, char ** argv) die("Boot block hasn't got boot flag (0xAA55)"); fclose(file); + c += reserve_pecoff_compat_section(c); c += reserve_pecoff_reloc_section(c); /* Pad unused space with zeros */ @@ -406,9 +443,28 @@ int main(int argc, char ** argv) buf[0x1f1] = setup_sectors-1; put_unaligned_le32(sys_size, &buf[0x1f4]); - update_pecoff_text(setup_sectors * 512, i + (sys_size * 16)); init_sz = get_unaligned_le32(&buf[0x260]); - update_pecoff_bss(i + (sys_size * 16), init_sz); +#ifdef CONFIG_EFI_STUB + /* + * The decompression buffer will start at ImageBase. When relocating + * the compressed kernel to its end, we must ensure that the head + * section does not get overwritten. The head section occupies + * [i, i + _ehead), and the destination is [init_sz - _end, init_sz). + * + * At present these should never overlap, because 'i' is at most 32k + * because of SETUP_SECT_MAX, '_ehead' is less than 1k, and the + * calculation of INIT_SIZE in boot/header.S ensures that + * 'init_sz - _end' is at least 64k. + * + * For future-proofing, increase init_sz if necessary. + */ + + if (init_sz - _end < i + _ehead) { + init_sz = (i + _ehead + _end + 4095) & ~4095; + put_unaligned_le32(init_sz, &buf[0x260]); + } +#endif + update_pecoff_text(setup_sectors * 512, i + (sys_size * 16), init_sz); efi_stub_entry_update(); diff --git a/arch/x86/configs/i386_defconfig b/arch/x86/configs/i386_defconfig index 59ce9ed58430..5b602beb0b72 100644 --- a/arch/x86/configs/i386_defconfig +++ b/arch/x86/configs/i386_defconfig @@ -125,7 +125,6 @@ CONFIG_IP6_NF_MANGLE=y CONFIG_NET_SCHED=y CONFIG_NET_EMATCH=y CONFIG_NET_CLS_ACT=y -CONFIG_HAMRADIO=y CONFIG_CFG80211=y CONFIG_MAC80211=y CONFIG_MAC80211_LEDS=y @@ -171,7 +170,6 @@ CONFIG_FORCEDETH=y CONFIG_8139TOO=y # CONFIG_8139TOO_PIO is not set CONFIG_R8169=y -CONFIG_FDDI=y CONFIG_INPUT_POLLDEV=y # CONFIG_INPUT_MOUSEDEV_PSAUX is not set CONFIG_INPUT_EVDEV=y diff --git a/arch/x86/configs/x86_64_defconfig b/arch/x86/configs/x86_64_defconfig index 0b9654c7a05c..f3d1f36103b1 100644 --- a/arch/x86/configs/x86_64_defconfig +++ b/arch/x86/configs/x86_64_defconfig @@ -123,7 +123,6 @@ CONFIG_IP6_NF_MANGLE=y CONFIG_NET_SCHED=y CONFIG_NET_EMATCH=y CONFIG_NET_CLS_ACT=y -CONFIG_HAMRADIO=y CONFIG_CFG80211=y CONFIG_MAC80211=y CONFIG_MAC80211_LEDS=y @@ -164,7 +163,6 @@ CONFIG_SKY2=y CONFIG_FORCEDETH=y CONFIG_8139TOO=y CONFIG_R8169=y -CONFIG_FDDI=y CONFIG_INPUT_POLLDEV=y # CONFIG_INPUT_MOUSEDEV_PSAUX is not set CONFIG_INPUT_EVDEV=y diff --git a/arch/x86/crypto/Makefile b/arch/x86/crypto/Makefile index b69e00bf20b8..8c2e9eadee8a 100644 --- a/arch/x86/crypto/Makefile +++ b/arch/x86/crypto/Makefile @@ -11,6 +11,7 @@ avx2_supported := $(call as-instr,vpgatherdd %ymm0$(comma)(%eax$(comma)%ymm1\ avx512_supported :=$(call as-instr,vpmovm2b %k1$(comma)%zmm5,yes,no) sha1_ni_supported :=$(call as-instr,sha1msg1 %xmm0$(comma)%xmm1,yes,no) sha256_ni_supported :=$(call as-instr,sha256msg1 %xmm0$(comma)%xmm1,yes,no) +adx_supported := $(call as-instr,adox %r10$(comma)%r10,yes,no) obj-$(CONFIG_CRYPTO_GLUE_HELPER_X86) += glue_helper.o @@ -39,7 +40,11 @@ obj-$(CONFIG_CRYPTO_AEGIS128_AESNI_SSE2) += aegis128-aesni.o obj-$(CONFIG_CRYPTO_NHPOLY1305_SSE2) += nhpoly1305-sse2.o obj-$(CONFIG_CRYPTO_NHPOLY1305_AVX2) += nhpoly1305-avx2.o -obj-$(CONFIG_CRYPTO_CURVE25519_X86) += curve25519-x86_64.o + +# These modules require the assembler to support ADX. +ifeq ($(adx_supported),yes) + obj-$(CONFIG_CRYPTO_CURVE25519_X86) += curve25519-x86_64.o +endif # These modules require assembler to support AVX. ifeq ($(avx_supported),yes) diff --git a/arch/x86/crypto/aesni-intel_glue.c b/arch/x86/crypto/aesni-intel_glue.c index bbbebbd35b5d..75b6ea20491e 100644 --- a/arch/x86/crypto/aesni-intel_glue.c +++ b/arch/x86/crypto/aesni-intel_glue.c @@ -1064,7 +1064,7 @@ static struct aead_alg aesni_aeads[0]; static struct simd_aead_alg *aesni_simd_aeads[ARRAY_SIZE(aesni_aeads)]; static const struct x86_cpu_id aesni_cpu_id[] = { - X86_FEATURE_MATCH(X86_FEATURE_AES), + X86_MATCH_FEATURE(X86_FEATURE_AES, NULL), {} }; MODULE_DEVICE_TABLE(x86cpu, aesni_cpu_id); diff --git a/arch/x86/crypto/crc32-pclmul_glue.c b/arch/x86/crypto/crc32-pclmul_glue.c index 418bd88acac8..7c4c7b2fbf05 100644 --- a/arch/x86/crypto/crc32-pclmul_glue.c +++ b/arch/x86/crypto/crc32-pclmul_glue.c @@ -170,7 +170,7 @@ static struct shash_alg alg = { }; static const struct x86_cpu_id crc32pclmul_cpu_id[] = { - X86_FEATURE_MATCH(X86_FEATURE_PCLMULQDQ), + X86_MATCH_FEATURE(X86_FEATURE_PCLMULQDQ, NULL), {} }; MODULE_DEVICE_TABLE(x86cpu, crc32pclmul_cpu_id); diff --git a/arch/x86/crypto/crc32c-intel_glue.c b/arch/x86/crypto/crc32c-intel_glue.c index c20d1b8a82c3..d2d069bd459b 100644 --- a/arch/x86/crypto/crc32c-intel_glue.c +++ b/arch/x86/crypto/crc32c-intel_glue.c @@ -221,7 +221,7 @@ static struct shash_alg alg = { }; static const struct x86_cpu_id crc32c_cpu_id[] = { - X86_FEATURE_MATCH(X86_FEATURE_XMM4_2), + X86_MATCH_FEATURE(X86_FEATURE_XMM4_2, NULL), {} }; MODULE_DEVICE_TABLE(x86cpu, crc32c_cpu_id); diff --git a/arch/x86/crypto/crct10dif-pclmul_glue.c b/arch/x86/crypto/crct10dif-pclmul_glue.c index 3c81e15b0873..71291d5af9f4 100644 --- a/arch/x86/crypto/crct10dif-pclmul_glue.c +++ b/arch/x86/crypto/crct10dif-pclmul_glue.c @@ -114,7 +114,7 @@ static struct shash_alg alg = { }; static const struct x86_cpu_id crct10dif_cpu_id[] = { - X86_FEATURE_MATCH(X86_FEATURE_PCLMULQDQ), + X86_MATCH_FEATURE(X86_FEATURE_PCLMULQDQ, NULL), {} }; MODULE_DEVICE_TABLE(x86cpu, crct10dif_cpu_id); diff --git a/arch/x86/crypto/ghash-clmulni-intel_glue.c b/arch/x86/crypto/ghash-clmulni-intel_glue.c index a4b728518e28..1f1a95f3dd0c 100644 --- a/arch/x86/crypto/ghash-clmulni-intel_glue.c +++ b/arch/x86/crypto/ghash-clmulni-intel_glue.c @@ -313,7 +313,7 @@ static struct ahash_alg ghash_async_alg = { }; static const struct x86_cpu_id pcmul_cpu_id[] = { - X86_FEATURE_MATCH(X86_FEATURE_PCLMULQDQ), /* Pickle-Mickle-Duck */ + X86_MATCH_FEATURE(X86_FEATURE_PCLMULQDQ, NULL), /* Pickle-Mickle-Duck */ {} }; MODULE_DEVICE_TABLE(x86cpu, pcmul_cpu_id); diff --git a/arch/x86/entry/Makefile b/arch/x86/entry/Makefile index 06fc70cf5433..85eb381259c2 100644 --- a/arch/x86/entry/Makefile +++ b/arch/x86/entry/Makefile @@ -14,4 +14,5 @@ obj-y += vdso/ obj-y += vsyscall/ obj-$(CONFIG_IA32_EMULATION) += entry_64_compat.o syscall_32.o +obj-$(CONFIG_X86_X32_ABI) += syscall_x32.o diff --git a/arch/x86/entry/common.c b/arch/x86/entry/common.c index 9747876980b5..76735ec813e6 100644 --- a/arch/x86/entry/common.c +++ b/arch/x86/entry/common.c @@ -34,6 +34,7 @@ #include <asm/fpu/api.h> #include <asm/nospec-branch.h> #include <asm/io_bitmap.h> +#include <asm/syscall.h> #define CREATE_TRACE_POINTS #include <trace/events/syscalls.h> @@ -333,20 +334,7 @@ static __always_inline void do_syscall_32_irqs_on(struct pt_regs *regs) if (likely(nr < IA32_NR_syscalls)) { nr = array_index_nospec(nr, IA32_NR_syscalls); -#ifdef CONFIG_IA32_EMULATION regs->ax = ia32_sys_call_table[nr](regs); -#else - /* - * It's possible that a 32-bit syscall implementation - * takes a 64-bit parameter but nonetheless assumes that - * the high bits are zero. Make sure we zero-extend all - * of the args. - */ - regs->ax = ia32_sys_call_table[nr]( - (unsigned int)regs->bx, (unsigned int)regs->cx, - (unsigned int)regs->dx, (unsigned int)regs->si, - (unsigned int)regs->di, (unsigned int)regs->bp); -#endif /* CONFIG_IA32_EMULATION */ } syscall_return_slowpath(regs); @@ -438,3 +426,8 @@ __visible long do_fast_syscall_32(struct pt_regs *regs) #endif } #endif + +SYSCALL_DEFINE0(ni_syscall) +{ + return -ENOSYS; +} diff --git a/arch/x86/entry/entry_32.S b/arch/x86/entry/entry_32.S index 7e0560442538..b67bae7091d7 100644 --- a/arch/x86/entry/entry_32.S +++ b/arch/x86/entry/entry_32.S @@ -1088,10 +1088,10 @@ SYM_FUNC_START(entry_INT80_32) STACKLEAK_ERASE restore_all: - TRACE_IRQS_IRET + TRACE_IRQS_ON SWITCH_TO_ENTRY_STACK CHECK_AND_APPLY_ESPFIX -.Lrestore_nocheck: + /* Switch back to user CR3 */ SWITCH_TO_USER_CR3 scratch_reg=%eax @@ -1290,7 +1290,7 @@ SYM_CODE_END(simd_coprocessor_error) SYM_CODE_START(device_not_available) ASM_CLAC - pushl $-1 # mark this as an int + pushl $0 pushl $do_device_not_available jmp common_exception SYM_CODE_END(device_not_available) @@ -1365,7 +1365,7 @@ SYM_CODE_END(divide_error) SYM_CODE_START(machine_check) ASM_CLAC pushl $0 - pushl machine_check_vector + pushl $do_mce jmp common_exception SYM_CODE_END(machine_check) #endif @@ -1531,7 +1531,7 @@ SYM_CODE_START(debug) * Entry from sysenter is now handled in common_exception */ ASM_CLAC - pushl $-1 # mark this as an int + pushl $0 pushl $do_debug jmp common_exception SYM_CODE_END(debug) @@ -1682,18 +1682,13 @@ SYM_CODE_END(nmi) SYM_CODE_START(int3) ASM_CLAC - pushl $-1 # mark this as an int - - SAVE_ALL switch_stacks=1 - ENCODE_FRAME_POINTER - TRACE_IRQS_OFF - xorl %edx, %edx # zero error code - movl %esp, %eax # pt_regs pointer - call do_int3 - jmp ret_from_exception + pushl $0 + pushl $do_int3 + jmp common_exception SYM_CODE_END(int3) SYM_CODE_START(general_protection) + ASM_CLAC pushl $do_general_protection jmp common_exception SYM_CODE_END(general_protection) diff --git a/arch/x86/entry/entry_64.S b/arch/x86/entry/entry_64.S index f2bb91e87877..0e9504fabe52 100644 --- a/arch/x86/entry/entry_64.S +++ b/arch/x86/entry/entry_64.S @@ -174,7 +174,7 @@ SYM_INNER_LABEL(entry_SYSCALL_64_after_hwframe, SYM_L_GLOBAL) movq %rsp, %rsi call do_syscall_64 /* returns with IRQs disabled */ - TRACE_IRQS_IRETQ /* we're about to change IF */ + TRACE_IRQS_ON /* return enables interrupts */ /* * Try to use SYSRET instead of IRET if we're returning to @@ -619,7 +619,7 @@ ret_from_intr: .Lretint_user: mov %rsp,%rdi call prepare_exit_to_usermode - TRACE_IRQS_IRETQ + TRACE_IRQS_ON SYM_INNER_LABEL(swapgs_restore_regs_and_return_to_usermode, SYM_L_GLOBAL) #ifdef CONFIG_DEBUG_ENTRY diff --git a/arch/x86/entry/syscall_32.c b/arch/x86/entry/syscall_32.c index 7d17b3addbbb..86eb0d89d46f 100644 --- a/arch/x86/entry/syscall_32.c +++ b/arch/x86/entry/syscall_32.c @@ -4,29 +4,22 @@ #include <linux/linkage.h> #include <linux/sys.h> #include <linux/cache.h> -#include <asm/asm-offsets.h> +#include <linux/syscalls.h> +#include <asm/unistd.h> #include <asm/syscall.h> -#ifdef CONFIG_IA32_EMULATION -/* On X86_64, we use struct pt_regs * to pass parameters to syscalls */ -#define __SYSCALL_I386(nr, sym, qual) extern asmlinkage long sym(const struct pt_regs *); -#define __sys_ni_syscall __ia32_sys_ni_syscall -#else /* CONFIG_IA32_EMULATION */ -#define __SYSCALL_I386(nr, sym, qual) extern asmlinkage long sym(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long); -extern asmlinkage long sys_ni_syscall(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long); -#define __sys_ni_syscall sys_ni_syscall -#endif /* CONFIG_IA32_EMULATION */ +#define __SYSCALL_I386(nr, sym) extern long __ia32_##sym(const struct pt_regs *); #include <asm/syscalls_32.h> #undef __SYSCALL_I386 -#define __SYSCALL_I386(nr, sym, qual) [nr] = sym, +#define __SYSCALL_I386(nr, sym) [nr] = __ia32_##sym, -__visible const sys_call_ptr_t ia32_sys_call_table[__NR_syscall_compat_max+1] = { +__visible const sys_call_ptr_t ia32_sys_call_table[__NR_ia32_syscall_max+1] = { /* * Smells like a compiler bug -- it doesn't work * when the & below is removed. */ - [0 ... __NR_syscall_compat_max] = &__sys_ni_syscall, + [0 ... __NR_ia32_syscall_max] = &__ia32_sys_ni_syscall, #include <asm/syscalls_32.h> }; diff --git a/arch/x86/entry/syscall_64.c b/arch/x86/entry/syscall_64.c index adf619a856e8..1594ec72bcbb 100644 --- a/arch/x86/entry/syscall_64.c +++ b/arch/x86/entry/syscall_64.c @@ -5,24 +5,17 @@ #include <linux/sys.h> #include <linux/cache.h> #include <linux/syscalls.h> -#include <asm/asm-offsets.h> +#include <asm/unistd.h> #include <asm/syscall.h> -extern asmlinkage long sys_ni_syscall(void); +#define __SYSCALL_X32(nr, sym) +#define __SYSCALL_COMMON(nr, sym) __SYSCALL_64(nr, sym) -SYSCALL_DEFINE0(ni_syscall) -{ - return sys_ni_syscall(); -} - -#define __SYSCALL_64(nr, sym, qual) extern asmlinkage long sym(const struct pt_regs *); -#define __SYSCALL_X32(nr, sym, qual) __SYSCALL_64(nr, sym, qual) +#define __SYSCALL_64(nr, sym) extern long __x64_##sym(const struct pt_regs *); #include <asm/syscalls_64.h> #undef __SYSCALL_64 -#undef __SYSCALL_X32 -#define __SYSCALL_64(nr, sym, qual) [nr] = sym, -#define __SYSCALL_X32(nr, sym, qual) +#define __SYSCALL_64(nr, sym) [nr] = __x64_##sym, asmlinkage const sys_call_ptr_t sys_call_table[__NR_syscall_max+1] = { /* @@ -32,25 +25,3 @@ asmlinkage const sys_call_ptr_t sys_call_table[__NR_syscall_max+1] = { [0 ... __NR_syscall_max] = &__x64_sys_ni_syscall, #include <asm/syscalls_64.h> }; - -#undef __SYSCALL_64 -#undef __SYSCALL_X32 - -#ifdef CONFIG_X86_X32_ABI - -#define __SYSCALL_64(nr, sym, qual) -#define __SYSCALL_X32(nr, sym, qual) [nr] = sym, - -asmlinkage const sys_call_ptr_t x32_sys_call_table[__NR_syscall_x32_max+1] = { - /* - * Smells like a compiler bug -- it doesn't work - * when the & below is removed. - */ - [0 ... __NR_syscall_x32_max] = &__x64_sys_ni_syscall, -#include <asm/syscalls_64.h> -}; - -#undef __SYSCALL_64 -#undef __SYSCALL_X32 - -#endif diff --git a/arch/x86/entry/syscall_x32.c b/arch/x86/entry/syscall_x32.c new file mode 100644 index 000000000000..3d8d70d3896c --- /dev/null +++ b/arch/x86/entry/syscall_x32.c @@ -0,0 +1,29 @@ +// SPDX-License-Identifier: GPL-2.0 +/* System call table for x32 ABI. */ + +#include <linux/linkage.h> +#include <linux/sys.h> +#include <linux/cache.h> +#include <linux/syscalls.h> +#include <asm/unistd.h> +#include <asm/syscall.h> + +#define __SYSCALL_64(nr, sym) + +#define __SYSCALL_X32(nr, sym) extern long __x32_##sym(const struct pt_regs *); +#define __SYSCALL_COMMON(nr, sym) extern long __x64_##sym(const struct pt_regs *); +#include <asm/syscalls_64.h> +#undef __SYSCALL_X32 +#undef __SYSCALL_COMMON + +#define __SYSCALL_X32(nr, sym) [nr] = __x32_##sym, +#define __SYSCALL_COMMON(nr, sym) [nr] = __x64_##sym, + +asmlinkage const sys_call_ptr_t x32_sys_call_table[__NR_x32_syscall_max+1] = { + /* + * Smells like a compiler bug -- it doesn't work + * when the & below is removed. + */ + [0 ... __NR_x32_syscall_max] = &__x64_sys_ni_syscall, +#include <asm/syscalls_64.h> +}; diff --git a/arch/x86/entry/syscalls/syscall_32.tbl b/arch/x86/entry/syscalls/syscall_32.tbl index c17cb77eb150..54581ac671b4 100644 --- a/arch/x86/entry/syscalls/syscall_32.tbl +++ b/arch/x86/entry/syscalls/syscall_32.tbl @@ -11,434 +11,434 @@ # # The abi is always "i386" for this file. # -0 i386 restart_syscall sys_restart_syscall __ia32_sys_restart_syscall -1 i386 exit sys_exit __ia32_sys_exit -2 i386 fork sys_fork __ia32_sys_fork -3 i386 read sys_read __ia32_sys_read -4 i386 write sys_write __ia32_sys_write -5 i386 open sys_open __ia32_compat_sys_open -6 i386 close sys_close __ia32_sys_close -7 i386 waitpid sys_waitpid __ia32_sys_waitpid -8 i386 creat sys_creat __ia32_sys_creat -9 i386 link sys_link __ia32_sys_link -10 i386 unlink sys_unlink __ia32_sys_unlink -11 i386 execve sys_execve __ia32_compat_sys_execve -12 i386 chdir sys_chdir __ia32_sys_chdir -13 i386 time sys_time32 __ia32_sys_time32 -14 i386 mknod sys_mknod __ia32_sys_mknod -15 i386 chmod sys_chmod __ia32_sys_chmod -16 i386 lchown sys_lchown16 __ia32_sys_lchown16 +0 i386 restart_syscall sys_restart_syscall +1 i386 exit sys_exit +2 i386 fork sys_fork +3 i386 read sys_read +4 i386 write sys_write +5 i386 open sys_open compat_sys_open +6 i386 close sys_close +7 i386 waitpid sys_waitpid +8 i386 creat sys_creat +9 i386 link sys_link +10 i386 unlink sys_unlink +11 i386 execve sys_execve compat_sys_execve +12 i386 chdir sys_chdir +13 i386 time sys_time32 +14 i386 mknod sys_mknod +15 i386 chmod sys_chmod +16 i386 lchown sys_lchown16 17 i386 break -18 i386 oldstat sys_stat __ia32_sys_stat -19 i386 lseek sys_lseek __ia32_compat_sys_lseek -20 i386 getpid sys_getpid __ia32_sys_getpid -21 i386 mount sys_mount __ia32_compat_sys_mount -22 i386 umount sys_oldumount __ia32_sys_oldumount -23 i386 setuid sys_setuid16 __ia32_sys_setuid16 -24 i386 getuid sys_getuid16 __ia32_sys_getuid16 -25 i386 stime sys_stime32 __ia32_sys_stime32 -26 i386 ptrace sys_ptrace __ia32_compat_sys_ptrace -27 i386 alarm sys_alarm __ia32_sys_alarm -28 i386 oldfstat sys_fstat __ia32_sys_fstat -29 i386 pause sys_pause __ia32_sys_pause -30 i386 utime sys_utime32 __ia32_sys_utime32 +18 i386 oldstat sys_stat +19 i386 lseek sys_lseek compat_sys_lseek +20 i386 getpid sys_getpid +21 i386 mount sys_mount compat_sys_mount +22 i386 umount sys_oldumount +23 i386 setuid sys_setuid16 +24 i386 getuid sys_getuid16 +25 i386 stime sys_stime32 +26 i386 ptrace sys_ptrace compat_sys_ptrace +27 i386 alarm sys_alarm +28 i386 oldfstat sys_fstat +29 i386 pause sys_pause +30 i386 utime sys_utime32 31 i386 stty 32 i386 gtty -33 i386 access sys_access __ia32_sys_access -34 i386 nice sys_nice __ia32_sys_nice +33 i386 access sys_access +34 i386 nice sys_nice 35 i386 ftime -36 i386 sync sys_sync __ia32_sys_sync -37 i386 kill sys_kill __ia32_sys_kill -38 i386 rename sys_rename __ia32_sys_rename -39 i386 mkdir sys_mkdir __ia32_sys_mkdir -40 i386 rmdir sys_rmdir __ia32_sys_rmdir -41 i386 dup sys_dup __ia32_sys_dup -42 i386 pipe sys_pipe __ia32_sys_pipe -43 i386 times sys_times __ia32_compat_sys_times +36 i386 sync sys_sync +37 i386 kill sys_kill +38 i386 rename sys_rename +39 i386 mkdir sys_mkdir +40 i386 rmdir sys_rmdir +41 i386 dup sys_dup +42 i386 pipe sys_pipe +43 i386 times sys_times compat_sys_times 44 i386 prof -45 i386 brk sys_brk __ia32_sys_brk -46 i386 setgid sys_setgid16 __ia32_sys_setgid16 -47 i386 getgid sys_getgid16 __ia32_sys_getgid16 -48 i386 signal sys_signal __ia32_sys_signal -49 i386 geteuid sys_geteuid16 __ia32_sys_geteuid16 -50 i386 getegid sys_getegid16 __ia32_sys_getegid16 -51 i386 acct sys_acct __ia32_sys_acct -52 i386 umount2 sys_umount __ia32_sys_umount +45 i386 brk sys_brk +46 i386 setgid sys_setgid16 +47 i386 getgid sys_getgid16 +48 i386 signal sys_signal +49 i386 geteuid sys_geteuid16 +50 i386 getegid sys_getegid16 +51 i386 acct sys_acct +52 i386 umount2 sys_umount 53 i386 lock -54 i386 ioctl sys_ioctl __ia32_compat_sys_ioctl -55 i386 fcntl sys_fcntl __ia32_compat_sys_fcntl64 +54 i386 ioctl sys_ioctl compat_sys_ioctl +55 i386 fcntl sys_fcntl compat_sys_fcntl64 56 i386 mpx -57 i386 setpgid sys_setpgid __ia32_sys_setpgid +57 i386 setpgid sys_setpgid 58 i386 ulimit -59 i386 oldolduname sys_olduname __ia32_sys_olduname -60 i386 umask sys_umask __ia32_sys_umask -61 i386 chroot sys_chroot __ia32_sys_chroot -62 i386 ustat sys_ustat __ia32_compat_sys_ustat -63 i386 dup2 sys_dup2 __ia32_sys_dup2 -64 i386 getppid sys_getppid __ia32_sys_getppid -65 i386 getpgrp sys_getpgrp __ia32_sys_getpgrp -66 i386 setsid sys_setsid __ia32_sys_setsid -67 i386 sigaction sys_sigaction __ia32_compat_sys_sigaction -68 i386 sgetmask sys_sgetmask __ia32_sys_sgetmask -69 i386 ssetmask sys_ssetmask __ia32_sys_ssetmask -70 i386 setreuid sys_setreuid16 __ia32_sys_setreuid16 -71 i386 setregid sys_setregid16 __ia32_sys_setregid16 -72 i386 sigsuspend sys_sigsuspend __ia32_sys_sigsuspend -73 i386 sigpending sys_sigpending __ia32_compat_sys_sigpending -74 i386 sethostname sys_sethostname __ia32_sys_sethostname -75 i386 setrlimit sys_setrlimit __ia32_compat_sys_setrlimit -76 i386 getrlimit sys_old_getrlimit __ia32_compat_sys_old_getrlimit -77 i386 getrusage sys_getrusage __ia32_compat_sys_getrusage -78 i386 gettimeofday sys_gettimeofday __ia32_compat_sys_gettimeofday -79 i386 settimeofday sys_settimeofday __ia32_compat_sys_settimeofday -80 i386 getgroups sys_getgroups16 __ia32_sys_getgroups16 -81 i386 setgroups sys_setgroups16 __ia32_sys_setgroups16 -82 i386 select sys_old_select __ia32_compat_sys_old_select -83 i386 symlink sys_symlink __ia32_sys_symlink -84 i386 oldlstat sys_lstat __ia32_sys_lstat -85 i386 readlink sys_readlink __ia32_sys_readlink -86 i386 uselib sys_uselib __ia32_sys_uselib -87 i386 swapon sys_swapon __ia32_sys_swapon -88 i386 reboot sys_reboot __ia32_sys_reboot -89 i386 readdir sys_old_readdir __ia32_compat_sys_old_readdir -90 i386 mmap sys_old_mmap __ia32_compat_sys_x86_mmap -91 i386 munmap sys_munmap __ia32_sys_munmap -92 i386 truncate sys_truncate __ia32_compat_sys_truncate -93 i386 ftruncate sys_ftruncate __ia32_compat_sys_ftruncate -94 i386 fchmod sys_fchmod __ia32_sys_fchmod -95 i386 fchown sys_fchown16 __ia32_sys_fchown16 -96 i386 getpriority sys_getpriority __ia32_sys_getpriority -97 i386 setpriority sys_setpriority __ia32_sys_setpriority +59 i386 oldolduname sys_olduname +60 i386 umask sys_umask +61 i386 chroot sys_chroot +62 i386 ustat sys_ustat compat_sys_ustat +63 i386 dup2 sys_dup2 +64 i386 getppid sys_getppid +65 i386 getpgrp sys_getpgrp +66 i386 setsid sys_setsid +67 i386 sigaction sys_sigaction compat_sys_sigaction +68 i386 sgetmask sys_sgetmask +69 i386 ssetmask sys_ssetmask +70 i386 setreuid sys_setreuid16 +71 i386 setregid sys_setregid16 +72 i386 sigsuspend sys_sigsuspend +73 i386 sigpending sys_sigpending compat_sys_sigpending +74 i386 sethostname sys_sethostname +75 i386 setrlimit sys_setrlimit compat_sys_setrlimit +76 i386 getrlimit sys_old_getrlimit compat_sys_old_getrlimit +77 i386 getrusage sys_getrusage compat_sys_getrusage +78 i386 gettimeofday sys_gettimeofday compat_sys_gettimeofday +79 i386 settimeofday sys_settimeofday compat_sys_settimeofday +80 i386 getgroups sys_getgroups16 +81 i386 setgroups sys_setgroups16 +82 i386 select sys_old_select compat_sys_old_select +83 i386 symlink sys_symlink +84 i386 oldlstat sys_lstat +85 i386 readlink sys_readlink +86 i386 uselib sys_uselib +87 i386 swapon sys_swapon +88 i386 reboot sys_reboot +89 i386 readdir sys_old_readdir compat_sys_old_readdir +90 i386 mmap sys_old_mmap compat_sys_ia32_mmap +91 i386 munmap sys_munmap +92 i386 truncate sys_truncate compat_sys_truncate +93 i386 ftruncate sys_ftruncate compat_sys_ftruncate +94 i386 fchmod sys_fchmod +95 i386 fchown sys_fchown16 +96 i386 getpriority sys_getpriority +97 i386 setpriority sys_setpriority 98 i386 profil -99 i386 statfs sys_statfs __ia32_compat_sys_statfs -100 i386 fstatfs sys_fstatfs __ia32_compat_sys_fstatfs -101 i386 ioperm sys_ioperm __ia32_sys_ioperm -102 i386 socketcall sys_socketcall __ia32_compat_sys_socketcall -103 i386 syslog sys_syslog __ia32_sys_syslog -104 i386 setitimer sys_setitimer __ia32_compat_sys_setitimer -105 i386 getitimer sys_getitimer __ia32_compat_sys_getitimer -106 i386 stat sys_newstat __ia32_compat_sys_newstat -107 i386 lstat sys_newlstat __ia32_compat_sys_newlstat -108 i386 fstat sys_newfstat __ia32_compat_sys_newfstat -109 i386 olduname sys_uname __ia32_sys_uname -110 i386 iopl sys_iopl __ia32_sys_iopl -111 i386 vhangup sys_vhangup __ia32_sys_vhangup +99 i386 statfs sys_statfs compat_sys_statfs +100 i386 fstatfs sys_fstatfs compat_sys_fstatfs +101 i386 ioperm sys_ioperm +102 i386 socketcall sys_socketcall compat_sys_socketcall +103 i386 syslog sys_syslog +104 i386 setitimer sys_setitimer compat_sys_setitimer +105 i386 getitimer sys_getitimer compat_sys_getitimer +106 i386 stat sys_newstat compat_sys_newstat +107 i386 lstat sys_newlstat compat_sys_newlstat +108 i386 fstat sys_newfstat compat_sys_newfstat +109 i386 olduname sys_uname +110 i386 iopl sys_iopl +111 i386 vhangup sys_vhangup 112 i386 idle -113 i386 vm86old sys_vm86old __ia32_sys_ni_syscall -114 i386 wait4 sys_wait4 __ia32_compat_sys_wait4 -115 i386 swapoff sys_swapoff __ia32_sys_swapoff -116 i386 sysinfo sys_sysinfo __ia32_compat_sys_sysinfo -117 i386 ipc sys_ipc __ia32_compat_sys_ipc -118 i386 fsync sys_fsync __ia32_sys_fsync -119 i386 sigreturn sys_sigreturn __ia32_compat_sys_sigreturn -120 i386 clone sys_clone __ia32_compat_sys_x86_clone -121 i386 setdomainname sys_setdomainname __ia32_sys_setdomainname -122 i386 uname sys_newuname __ia32_sys_newuname -123 i386 modify_ldt sys_modify_ldt __ia32_sys_modify_ldt -124 i386 adjtimex sys_adjtimex_time32 __ia32_sys_adjtimex_time32 -125 i386 mprotect sys_mprotect __ia32_sys_mprotect -126 i386 sigprocmask sys_sigprocmask __ia32_compat_sys_sigprocmask +113 i386 vm86old sys_vm86old sys_ni_syscall +114 i386 wait4 sys_wait4 compat_sys_wait4 +115 i386 swapoff sys_swapoff +116 i386 sysinfo sys_sysinfo compat_sys_sysinfo +117 i386 ipc sys_ipc compat_sys_ipc +118 i386 fsync sys_fsync +119 i386 sigreturn sys_sigreturn compat_sys_sigreturn +120 i386 clone sys_clone compat_sys_ia32_clone +121 i386 setdomainname sys_setdomainname +122 i386 uname sys_newuname +123 i386 modify_ldt sys_modify_ldt +124 i386 adjtimex sys_adjtimex_time32 +125 i386 mprotect sys_mprotect +126 i386 sigprocmask sys_sigprocmask compat_sys_sigprocmask 127 i386 create_module -128 i386 init_module sys_init_module __ia32_sys_init_module -129 i386 delete_module sys_delete_module __ia32_sys_delete_module +128 i386 init_module sys_init_module +129 i386 delete_module sys_delete_module 130 i386 get_kernel_syms -131 i386 quotactl sys_quotactl __ia32_compat_sys_quotactl32 -132 i386 getpgid sys_getpgid __ia32_sys_getpgid -133 i386 fchdir sys_fchdir __ia32_sys_fchdir -134 i386 bdflush sys_bdflush __ia32_sys_bdflush -135 i386 sysfs sys_sysfs __ia32_sys_sysfs -136 i386 personality sys_personality __ia32_sys_personality +131 i386 quotactl sys_quotactl compat_sys_quotactl32 +132 i386 getpgid sys_getpgid +133 i386 fchdir sys_fchdir +134 i386 bdflush sys_bdflush +135 i386 sysfs sys_sysfs +136 i386 personality sys_personality 137 i386 afs_syscall -138 i386 setfsuid sys_setfsuid16 __ia32_sys_setfsuid16 -139 i386 setfsgid sys_setfsgid16 __ia32_sys_setfsgid16 -140 i386 _llseek sys_llseek __ia32_sys_llseek -141 i386 getdents sys_getdents __ia32_compat_sys_getdents -142 i386 _newselect sys_select __ia32_compat_sys_select -143 i386 flock sys_flock __ia32_sys_flock -144 i386 msync sys_msync __ia32_sys_msync -145 i386 readv sys_readv __ia32_compat_sys_readv -146 i386 writev sys_writev __ia32_compat_sys_writev -147 i386 getsid sys_getsid __ia32_sys_getsid -148 i386 fdatasync sys_fdatasync __ia32_sys_fdatasync -149 i386 _sysctl sys_sysctl __ia32_compat_sys_sysctl -150 i386 mlock sys_mlock __ia32_sys_mlock -151 i386 munlock sys_munlock __ia32_sys_munlock -152 i386 mlockall sys_mlockall __ia32_sys_mlockall -153 i386 munlockall sys_munlockall __ia32_sys_munlockall -154 i386 sched_setparam sys_sched_setparam __ia32_sys_sched_setparam -155 i386 sched_getparam sys_sched_getparam __ia32_sys_sched_getparam -156 i386 sched_setscheduler sys_sched_setscheduler __ia32_sys_sched_setscheduler -157 i386 sched_getscheduler sys_sched_getscheduler __ia32_sys_sched_getscheduler -158 i386 sched_yield sys_sched_yield __ia32_sys_sched_yield -159 i386 sched_get_priority_max sys_sched_get_priority_max __ia32_sys_sched_get_priority_max -160 i386 sched_get_priority_min sys_sched_get_priority_min __ia32_sys_sched_get_priority_min -161 i386 sched_rr_get_interval sys_sched_rr_get_interval_time32 __ia32_sys_sched_rr_get_interval_time32 -162 i386 nanosleep sys_nanosleep_time32 __ia32_sys_nanosleep_time32 -163 i386 mremap sys_mremap __ia32_sys_mremap -164 i386 setresuid sys_setresuid16 __ia32_sys_setresuid16 -165 i386 getresuid sys_getresuid16 __ia32_sys_getresuid16 -166 i386 vm86 sys_vm86 __ia32_sys_ni_syscall +138 i386 setfsuid sys_setfsuid16 +139 i386 setfsgid sys_setfsgid16 +140 i386 _llseek sys_llseek +141 i386 getdents sys_getdents compat_sys_getdents +142 i386 _newselect sys_select compat_sys_select +143 i386 flock sys_flock +144 i386 msync sys_msync +145 i386 readv sys_readv compat_sys_readv +146 i386 writev sys_writev compat_sys_writev +147 i386 getsid sys_getsid +148 i386 fdatasync sys_fdatasync +149 i386 _sysctl sys_sysctl compat_sys_sysctl +150 i386 mlock sys_mlock +151 i386 munlock sys_munlock +152 i386 mlockall sys_mlockall +153 i386 munlockall sys_munlockall +154 i386 sched_setparam sys_sched_setparam +155 i386 sched_getparam sys_sched_getparam +156 i386 sched_setscheduler sys_sched_setscheduler +157 i386 sched_getscheduler sys_sched_getscheduler +158 i386 sched_yield sys_sched_yield +159 i386 sched_get_priority_max sys_sched_get_priority_max +160 i386 sched_get_priority_min sys_sched_get_priority_min +161 i386 sched_rr_get_interval sys_sched_rr_get_interval_time32 +162 i386 nanosleep sys_nanosleep_time32 +163 i386 mremap sys_mremap +164 i386 setresuid sys_setresuid16 +165 i386 getresuid sys_getresuid16 +166 i386 vm86 sys_vm86 sys_ni_syscall 167 i386 query_module -168 i386 poll sys_poll __ia32_sys_poll +168 i386 poll sys_poll 169 i386 nfsservctl -170 i386 setresgid sys_setresgid16 __ia32_sys_setresgid16 -171 i386 getresgid sys_getresgid16 __ia32_sys_getresgid16 -172 i386 prctl sys_prctl __ia32_sys_prctl -173 i386 rt_sigreturn sys_rt_sigreturn __ia32_compat_sys_rt_sigreturn -174 i386 rt_sigaction sys_rt_sigaction __ia32_compat_sys_rt_sigaction -175 i386 rt_sigprocmask sys_rt_sigprocmask __ia32_compat_sys_rt_sigprocmask -176 i386 rt_sigpending sys_rt_sigpending __ia32_compat_sys_rt_sigpending -177 i386 rt_sigtimedwait sys_rt_sigtimedwait_time32 __ia32_compat_sys_rt_sigtimedwait_time32 -178 i386 rt_sigqueueinfo sys_rt_sigqueueinfo __ia32_compat_sys_rt_sigqueueinfo -179 i386 rt_sigsuspend sys_rt_sigsuspend __ia32_compat_sys_rt_sigsuspend -180 i386 pread64 sys_pread64 __ia32_compat_sys_x86_pread -181 i386 pwrite64 sys_pwrite64 __ia32_compat_sys_x86_pwrite -182 i386 chown sys_chown16 __ia32_sys_chown16 -183 i386 getcwd sys_getcwd __ia32_sys_getcwd -184 i386 capget sys_capget __ia32_sys_capget -185 i386 capset sys_capset __ia32_sys_capset -186 i386 sigaltstack sys_sigaltstack __ia32_compat_sys_sigaltstack -187 i386 sendfile sys_sendfile __ia32_compat_sys_sendfile +170 i386 setresgid sys_setresgid16 +171 i386 getresgid sys_getresgid16 +172 i386 prctl sys_prctl +173 i386 rt_sigreturn sys_rt_sigreturn compat_sys_rt_sigreturn +174 i386 rt_sigaction sys_rt_sigaction compat_sys_rt_sigaction +175 i386 rt_sigprocmask sys_rt_sigprocmask compat_sys_rt_sigprocmask +176 i386 rt_sigpending sys_rt_sigpending compat_sys_rt_sigpending +177 i386 rt_sigtimedwait sys_rt_sigtimedwait_time32 compat_sys_rt_sigtimedwait_time32 +178 i386 rt_sigqueueinfo sys_rt_sigqueueinfo compat_sys_rt_sigqueueinfo +179 i386 rt_sigsuspend sys_rt_sigsuspend compat_sys_rt_sigsuspend +180 i386 pread64 sys_ia32_pread64 +181 i386 pwrite64 sys_ia32_pwrite64 +182 i386 chown sys_chown16 +183 i386 getcwd sys_getcwd +184 i386 capget sys_capget +185 i386 capset sys_capset +186 i386 sigaltstack sys_sigaltstack compat_sys_sigaltstack +187 i386 sendfile sys_sendfile compat_sys_sendfile 188 i386 getpmsg 189 i386 putpmsg -190 i386 vfork sys_vfork __ia32_sys_vfork -191 i386 ugetrlimit sys_getrlimit __ia32_compat_sys_getrlimit -192 i386 mmap2 sys_mmap_pgoff __ia32_sys_mmap_pgoff -193 i386 truncate64 sys_truncate64 __ia32_compat_sys_x86_truncate64 -194 i386 ftruncate64 sys_ftruncate64 __ia32_compat_sys_x86_ftruncate64 -195 i386 stat64 sys_stat64 __ia32_compat_sys_x86_stat64 -196 i386 lstat64 sys_lstat64 __ia32_compat_sys_x86_lstat64 -197 i386 fstat64 sys_fstat64 __ia32_compat_sys_x86_fstat64 -198 i386 lchown32 sys_lchown __ia32_sys_lchown -199 i386 getuid32 sys_getuid __ia32_sys_getuid -200 i386 getgid32 sys_getgid __ia32_sys_getgid -201 i386 geteuid32 sys_geteuid __ia32_sys_geteuid -202 i386 getegid32 sys_getegid __ia32_sys_getegid -203 i386 setreuid32 sys_setreuid __ia32_sys_setreuid -204 i386 setregid32 sys_setregid __ia32_sys_setregid -205 i386 getgroups32 sys_getgroups __ia32_sys_getgroups -206 i386 setgroups32 sys_setgroups __ia32_sys_setgroups -207 i386 fchown32 sys_fchown __ia32_sys_fchown -208 i386 setresuid32 sys_setresuid __ia32_sys_setresuid -209 i386 getresuid32 sys_getresuid __ia32_sys_getresuid -210 i386 setresgid32 sys_setresgid __ia32_sys_setresgid -211 i386 getresgid32 sys_getresgid __ia32_sys_getresgid -212 i386 chown32 sys_chown __ia32_sys_chown -213 i386 setuid32 sys_setuid __ia32_sys_setuid -214 i386 setgid32 sys_setgid __ia32_sys_setgid -215 i386 setfsuid32 sys_setfsuid __ia32_sys_setfsuid -216 i386 setfsgid32 sys_setfsgid __ia32_sys_setfsgid -217 i386 pivot_root sys_pivot_root __ia32_sys_pivot_root -218 i386 mincore sys_mincore __ia32_sys_mincore -219 i386 madvise sys_madvise __ia32_sys_madvise -220 i386 getdents64 sys_getdents64 __ia32_sys_getdents64 -221 i386 fcntl64 sys_fcntl64 __ia32_compat_sys_fcntl64 +190 i386 vfork sys_vfork +191 i386 ugetrlimit sys_getrlimit compat_sys_getrlimit +192 i386 mmap2 sys_mmap_pgoff +193 i386 truncate64 sys_ia32_truncate64 +194 i386 ftruncate64 sys_ia32_ftruncate64 +195 i386 stat64 sys_stat64 compat_sys_ia32_stat64 +196 i386 lstat64 sys_lstat64 compat_sys_ia32_lstat64 +197 i386 fstat64 sys_fstat64 compat_sys_ia32_fstat64 +198 i386 lchown32 sys_lchown +199 i386 getuid32 sys_getuid +200 i386 getgid32 sys_getgid +201 i386 geteuid32 sys_geteuid +202 i386 getegid32 sys_getegid +203 i386 setreuid32 sys_setreuid +204 i386 setregid32 sys_setregid +205 i386 getgroups32 sys_getgroups +206 i386 setgroups32 sys_setgroups +207 i386 fchown32 sys_fchown +208 i386 setresuid32 sys_setresuid +209 i386 getresuid32 sys_getresuid +210 i386 setresgid32 sys_setresgid +211 i386 getresgid32 sys_getresgid +212 i386 chown32 sys_chown +213 i386 setuid32 sys_setuid +214 i386 setgid32 sys_setgid +215 i386 setfsuid32 sys_setfsuid +216 i386 setfsgid32 sys_setfsgid +217 i386 pivot_root sys_pivot_root +218 i386 mincore sys_mincore +219 i386 madvise sys_madvise +220 i386 getdents64 sys_getdents64 +221 i386 fcntl64 sys_fcntl64 compat_sys_fcntl64 # 222 is unused # 223 is unused -224 i386 gettid sys_gettid __ia32_sys_gettid -225 i386 readahead sys_readahead __ia32_compat_sys_x86_readahead -226 i386 setxattr sys_setxattr __ia32_sys_setxattr -227 i386 lsetxattr sys_lsetxattr __ia32_sys_lsetxattr -228 i386 fsetxattr sys_fsetxattr __ia32_sys_fsetxattr -229 i386 getxattr sys_getxattr __ia32_sys_getxattr -230 i386 lgetxattr sys_lgetxattr __ia32_sys_lgetxattr -231 i386 fgetxattr sys_fgetxattr __ia32_sys_fgetxattr -232 i386 listxattr sys_listxattr __ia32_sys_listxattr -233 i386 llistxattr sys_llistxattr __ia32_sys_llistxattr -234 i386 flistxattr sys_flistxattr __ia32_sys_flistxattr -235 i386 removexattr sys_removexattr __ia32_sys_removexattr -236 i386 lremovexattr sys_lremovexattr __ia32_sys_lremovexattr -237 i386 fremovexattr sys_fremovexattr __ia32_sys_fremovexattr -238 i386 tkill sys_tkill __ia32_sys_tkill -239 i386 sendfile64 sys_sendfile64 __ia32_sys_sendfile64 -240 i386 futex sys_futex_time32 __ia32_sys_futex_time32 -241 i386 sched_setaffinity sys_sched_setaffinity __ia32_compat_sys_sched_setaffinity -242 i386 sched_getaffinity sys_sched_getaffinity __ia32_compat_sys_sched_getaffinity -243 i386 set_thread_area sys_set_thread_area __ia32_sys_set_thread_area -244 i386 get_thread_area sys_get_thread_area __ia32_sys_get_thread_area -245 i386 io_setup sys_io_setup __ia32_compat_sys_io_setup -246 i386 io_destroy sys_io_destroy __ia32_sys_io_destroy -247 i386 io_getevents sys_io_getevents_time32 __ia32_sys_io_getevents_time32 -248 i386 io_submit sys_io_submit __ia32_compat_sys_io_submit -249 i386 io_cancel sys_io_cancel __ia32_sys_io_cancel -250 i386 fadvise64 sys_fadvise64 __ia32_compat_sys_x86_fadvise64 +224 i386 gettid sys_gettid +225 i386 readahead sys_ia32_readahead +226 i386 setxattr sys_setxattr +227 i386 lsetxattr sys_lsetxattr +228 i386 fsetxattr sys_fsetxattr +229 i386 getxattr sys_getxattr +230 i386 lgetxattr sys_lgetxattr +231 i386 fgetxattr sys_fgetxattr +232 i386 listxattr sys_listxattr +233 i386 llistxattr sys_llistxattr +234 i386 flistxattr sys_flistxattr +235 i386 removexattr sys_removexattr +236 i386 lremovexattr sys_lremovexattr +237 i386 fremovexattr sys_fremovexattr +238 i386 tkill sys_tkill +239 i386 sendfile64 sys_sendfile64 +240 i386 futex sys_futex_time32 +241 i386 sched_setaffinity sys_sched_setaffinity compat_sys_sched_setaffinity +242 i386 sched_getaffinity sys_sched_getaffinity compat_sys_sched_getaffinity +243 i386 set_thread_area sys_set_thread_area +244 i386 get_thread_area sys_get_thread_area +245 i386 io_setup sys_io_setup compat_sys_io_setup +246 i386 io_destroy sys_io_destroy +247 i386 io_getevents sys_io_getevents_time32 +248 i386 io_submit sys_io_submit compat_sys_io_submit +249 i386 io_cancel sys_io_cancel +250 i386 fadvise64 sys_ia32_fadvise64 # 251 is available for reuse (was briefly sys_set_zone_reclaim) -252 i386 exit_group sys_exit_group __ia32_sys_exit_group -253 i386 lookup_dcookie sys_lookup_dcookie __ia32_compat_sys_lookup_dcookie -254 i386 epoll_create sys_epoll_create __ia32_sys_epoll_create -255 i386 epoll_ctl sys_epoll_ctl __ia32_sys_epoll_ctl -256 i386 epoll_wait sys_epoll_wait __ia32_sys_epoll_wait -257 i386 remap_file_pages sys_remap_file_pages __ia32_sys_remap_file_pages -258 i386 set_tid_address sys_set_tid_address __ia32_sys_set_tid_address -259 i386 timer_create sys_timer_create __ia32_compat_sys_timer_create -260 i386 timer_settime sys_timer_settime32 __ia32_sys_timer_settime32 -261 i386 timer_gettime sys_timer_gettime32 __ia32_sys_timer_gettime32 -262 i386 timer_getoverrun sys_timer_getoverrun __ia32_sys_timer_getoverrun -263 i386 timer_delete sys_timer_delete __ia32_sys_timer_delete -264 i386 clock_settime sys_clock_settime32 __ia32_sys_clock_settime32 -265 i386 clock_gettime sys_clock_gettime32 __ia32_sys_clock_gettime32 -266 i386 clock_getres sys_clock_getres_time32 __ia32_sys_clock_getres_time32 -267 i386 clock_nanosleep sys_clock_nanosleep_time32 __ia32_sys_clock_nanosleep_time32 -268 i386 statfs64 sys_statfs64 __ia32_compat_sys_statfs64 -269 i386 fstatfs64 sys_fstatfs64 __ia32_compat_sys_fstatfs64 -270 i386 tgkill sys_tgkill __ia32_sys_tgkill -271 i386 utimes sys_utimes_time32 __ia32_sys_utimes_time32 -272 i386 fadvise64_64 sys_fadvise64_64 __ia32_compat_sys_x86_fadvise64_64 +252 i386 exit_group sys_exit_group +253 i386 lookup_dcookie sys_lookup_dcookie compat_sys_lookup_dcookie +254 i386 epoll_create sys_epoll_create +255 i386 epoll_ctl sys_epoll_ctl +256 i386 epoll_wait sys_epoll_wait +257 i386 remap_file_pages sys_remap_file_pages +258 i386 set_tid_address sys_set_tid_address +259 i386 timer_create sys_timer_create compat_sys_timer_create +260 i386 timer_settime sys_timer_settime32 +261 i386 timer_gettime sys_timer_gettime32 +262 i386 timer_getoverrun sys_timer_getoverrun +263 i386 timer_delete sys_timer_delete +264 i386 clock_settime sys_clock_settime32 +265 i386 clock_gettime sys_clock_gettime32 +266 i386 clock_getres sys_clock_getres_time32 +267 i386 clock_nanosleep sys_clock_nanosleep_time32 +268 i386 statfs64 sys_statfs64 compat_sys_statfs64 +269 i386 fstatfs64 sys_fstatfs64 compat_sys_fstatfs64 +270 i386 tgkill sys_tgkill +271 i386 utimes sys_utimes_time32 +272 i386 fadvise64_64 sys_ia32_fadvise64_64 273 i386 vserver -274 i386 mbind sys_mbind __ia32_sys_mbind -275 i386 get_mempolicy sys_get_mempolicy __ia32_compat_sys_get_mempolicy -276 i386 set_mempolicy sys_set_mempolicy __ia32_sys_set_mempolicy -277 i386 mq_open sys_mq_open __ia32_compat_sys_mq_open -278 i386 mq_unlink sys_mq_unlink __ia32_sys_mq_unlink -279 i386 mq_timedsend sys_mq_timedsend_time32 __ia32_sys_mq_timedsend_time32 -280 i386 mq_timedreceive sys_mq_timedreceive_time32 __ia32_sys_mq_timedreceive_time32 -281 i386 mq_notify sys_mq_notify __ia32_compat_sys_mq_notify -282 i386 mq_getsetattr sys_mq_getsetattr __ia32_compat_sys_mq_getsetattr -283 i386 kexec_load sys_kexec_load __ia32_compat_sys_kexec_load -284 i386 waitid sys_waitid __ia32_compat_sys_waitid +274 i386 mbind sys_mbind +275 i386 get_mempolicy sys_get_mempolicy compat_sys_get_mempolicy +276 i386 set_mempolicy sys_set_mempolicy +277 i386 mq_open sys_mq_open compat_sys_mq_open +278 i386 mq_unlink sys_mq_unlink +279 i386 mq_timedsend sys_mq_timedsend_time32 +280 i386 mq_timedreceive sys_mq_timedreceive_time32 +281 i386 mq_notify sys_mq_notify compat_sys_mq_notify +282 i386 mq_getsetattr sys_mq_getsetattr compat_sys_mq_getsetattr +283 i386 kexec_load sys_kexec_load compat_sys_kexec_load +284 i386 waitid sys_waitid compat_sys_waitid # 285 sys_setaltroot -286 i386 add_key sys_add_key __ia32_sys_add_key -287 i386 request_key sys_request_key __ia32_sys_request_key -288 i386 keyctl sys_keyctl __ia32_compat_sys_keyctl -289 i386 ioprio_set sys_ioprio_set __ia32_sys_ioprio_set -290 i386 ioprio_get sys_ioprio_get __ia32_sys_ioprio_get -291 i386 inotify_init sys_inotify_init __ia32_sys_inotify_init -292 i386 inotify_add_watch sys_inotify_add_watch __ia32_sys_inotify_add_watch -293 i386 inotify_rm_watch sys_inotify_rm_watch __ia32_sys_inotify_rm_watch -294 i386 migrate_pages sys_migrate_pages __ia32_sys_migrate_pages -295 i386 openat sys_openat __ia32_compat_sys_openat -296 i386 mkdirat sys_mkdirat __ia32_sys_mkdirat -297 i386 mknodat sys_mknodat __ia32_sys_mknodat -298 i386 fchownat sys_fchownat __ia32_sys_fchownat -299 i386 futimesat sys_futimesat_time32 __ia32_sys_futimesat_time32 -300 i386 fstatat64 sys_fstatat64 __ia32_compat_sys_x86_fstatat -301 i386 unlinkat sys_unlinkat __ia32_sys_unlinkat -302 i386 renameat sys_renameat __ia32_sys_renameat -303 i386 linkat sys_linkat __ia32_sys_linkat -304 i386 symlinkat sys_symlinkat __ia32_sys_symlinkat -305 i386 readlinkat sys_readlinkat __ia32_sys_readlinkat -306 i386 fchmodat sys_fchmodat __ia32_sys_fchmodat -307 i386 faccessat sys_faccessat __ia32_sys_faccessat -308 i386 pselect6 sys_pselect6_time32 __ia32_compat_sys_pselect6_time32 -309 i386 ppoll sys_ppoll_time32 __ia32_compat_sys_ppoll_time32 -310 i386 unshare sys_unshare __ia32_sys_unshare -311 i386 set_robust_list sys_set_robust_list __ia32_compat_sys_set_robust_list -312 i386 get_robust_list sys_get_robust_list __ia32_compat_sys_get_robust_list -313 i386 splice sys_splice __ia32_sys_splice -314 i386 sync_file_range sys_sync_file_range __ia32_compat_sys_x86_sync_file_range -315 i386 tee sys_tee __ia32_sys_tee -316 i386 vmsplice sys_vmsplice __ia32_compat_sys_vmsplice -317 i386 move_pages sys_move_pages __ia32_compat_sys_move_pages -318 i386 getcpu sys_getcpu __ia32_sys_getcpu -319 i386 epoll_pwait sys_epoll_pwait __ia32_sys_epoll_pwait -320 i386 utimensat sys_utimensat_time32 __ia32_sys_utimensat_time32 -321 i386 signalfd sys_signalfd __ia32_compat_sys_signalfd -322 i386 timerfd_create sys_timerfd_create __ia32_sys_timerfd_create -323 i386 eventfd sys_eventfd __ia32_sys_eventfd -324 i386 fallocate sys_fallocate __ia32_compat_sys_x86_fallocate -325 i386 timerfd_settime sys_timerfd_settime32 __ia32_sys_timerfd_settime32 -326 i386 timerfd_gettime sys_timerfd_gettime32 __ia32_sys_timerfd_gettime32 -327 i386 signalfd4 sys_signalfd4 __ia32_compat_sys_signalfd4 -328 i386 eventfd2 sys_eventfd2 __ia32_sys_eventfd2 -329 i386 epoll_create1 sys_epoll_create1 __ia32_sys_epoll_create1 -330 i386 dup3 sys_dup3 __ia32_sys_dup3 -331 i386 pipe2 sys_pipe2 __ia32_sys_pipe2 -332 i386 inotify_init1 sys_inotify_init1 __ia32_sys_inotify_init1 -333 i386 preadv sys_preadv __ia32_compat_sys_preadv -334 i386 pwritev sys_pwritev __ia32_compat_sys_pwritev -335 i386 rt_tgsigqueueinfo sys_rt_tgsigqueueinfo __ia32_compat_sys_rt_tgsigqueueinfo -336 i386 perf_event_open sys_perf_event_open __ia32_sys_perf_event_open -337 i386 recvmmsg sys_recvmmsg_time32 __ia32_compat_sys_recvmmsg_time32 -338 i386 fanotify_init sys_fanotify_init __ia32_sys_fanotify_init -339 i386 fanotify_mark sys_fanotify_mark __ia32_compat_sys_fanotify_mark -340 i386 prlimit64 sys_prlimit64 __ia32_sys_prlimit64 -341 i386 name_to_handle_at sys_name_to_handle_at __ia32_sys_name_to_handle_at -342 i386 open_by_handle_at sys_open_by_handle_at __ia32_compat_sys_open_by_handle_at -343 i386 clock_adjtime sys_clock_adjtime32 __ia32_sys_clock_adjtime32 -344 i386 syncfs sys_syncfs __ia32_sys_syncfs -345 i386 sendmmsg sys_sendmmsg __ia32_compat_sys_sendmmsg -346 i386 setns sys_setns __ia32_sys_setns -347 i386 process_vm_readv sys_process_vm_readv __ia32_compat_sys_process_vm_readv -348 i386 process_vm_writev sys_process_vm_writev __ia32_compat_sys_process_vm_writev -349 i386 kcmp sys_kcmp __ia32_sys_kcmp -350 i386 finit_module sys_finit_module __ia32_sys_finit_module -351 i386 sched_setattr sys_sched_setattr __ia32_sys_sched_setattr -352 i386 sched_getattr sys_sched_getattr __ia32_sys_sched_getattr -353 i386 renameat2 sys_renameat2 __ia32_sys_renameat2 -354 i386 seccomp sys_seccomp __ia32_sys_seccomp -355 i386 getrandom sys_getrandom __ia32_sys_getrandom -356 i386 memfd_create sys_memfd_create __ia32_sys_memfd_create -357 i386 bpf sys_bpf __ia32_sys_bpf -358 i386 execveat sys_execveat __ia32_compat_sys_execveat -359 i386 socket sys_socket __ia32_sys_socket -360 i386 socketpair sys_socketpair __ia32_sys_socketpair -361 i386 bind sys_bind __ia32_sys_bind -362 i386 connect sys_connect __ia32_sys_connect -363 i386 listen sys_listen __ia32_sys_listen -364 i386 accept4 sys_accept4 __ia32_sys_accept4 -365 i386 getsockopt sys_getsockopt __ia32_compat_sys_getsockopt -366 i386 setsockopt sys_setsockopt __ia32_compat_sys_setsockopt -367 i386 getsockname sys_getsockname __ia32_sys_getsockname -368 i386 getpeername sys_getpeername __ia32_sys_getpeername -369 i386 sendto sys_sendto __ia32_sys_sendto -370 i386 sendmsg sys_sendmsg __ia32_compat_sys_sendmsg -371 i386 recvfrom sys_recvfrom __ia32_compat_sys_recvfrom -372 i386 recvmsg sys_recvmsg __ia32_compat_sys_recvmsg -373 i386 shutdown sys_shutdown __ia32_sys_shutdown -374 i386 userfaultfd sys_userfaultfd __ia32_sys_userfaultfd -375 i386 membarrier sys_membarrier __ia32_sys_membarrier -376 i386 mlock2 sys_mlock2 __ia32_sys_mlock2 -377 i386 copy_file_range sys_copy_file_range __ia32_sys_copy_file_range -378 i386 preadv2 sys_preadv2 __ia32_compat_sys_preadv2 -379 i386 pwritev2 sys_pwritev2 __ia32_compat_sys_pwritev2 -380 i386 pkey_mprotect sys_pkey_mprotect __ia32_sys_pkey_mprotect -381 i386 pkey_alloc sys_pkey_alloc __ia32_sys_pkey_alloc -382 i386 pkey_free sys_pkey_free __ia32_sys_pkey_free -383 i386 statx sys_statx __ia32_sys_statx -384 i386 arch_prctl sys_arch_prctl __ia32_compat_sys_arch_prctl -385 i386 io_pgetevents sys_io_pgetevents_time32 __ia32_compat_sys_io_pgetevents -386 i386 rseq sys_rseq __ia32_sys_rseq -393 i386 semget sys_semget __ia32_sys_semget -394 i386 semctl sys_semctl __ia32_compat_sys_semctl -395 i386 shmget sys_shmget __ia32_sys_shmget -396 i386 shmctl sys_shmctl __ia32_compat_sys_shmctl -397 i386 shmat sys_shmat __ia32_compat_sys_shmat -398 i386 shmdt sys_shmdt __ia32_sys_shmdt -399 i386 msgget sys_msgget __ia32_sys_msgget -400 i386 msgsnd sys_msgsnd __ia32_compat_sys_msgsnd -401 i386 msgrcv sys_msgrcv __ia32_compat_sys_msgrcv -402 i386 msgctl sys_msgctl __ia32_compat_sys_msgctl -403 i386 clock_gettime64 sys_clock_gettime __ia32_sys_clock_gettime -404 i386 clock_settime64 sys_clock_settime __ia32_sys_clock_settime -405 i386 clock_adjtime64 sys_clock_adjtime __ia32_sys_clock_adjtime -406 i386 clock_getres_time64 sys_clock_getres __ia32_sys_clock_getres -407 i386 clock_nanosleep_time64 sys_clock_nanosleep __ia32_sys_clock_nanosleep -408 i386 timer_gettime64 sys_timer_gettime __ia32_sys_timer_gettime -409 i386 timer_settime64 sys_timer_settime __ia32_sys_timer_settime -410 i386 timerfd_gettime64 sys_timerfd_gettime __ia32_sys_timerfd_gettime -411 i386 timerfd_settime64 sys_timerfd_settime __ia32_sys_timerfd_settime -412 i386 utimensat_time64 sys_utimensat __ia32_sys_utimensat -413 i386 pselect6_time64 sys_pselect6 __ia32_compat_sys_pselect6_time64 -414 i386 ppoll_time64 sys_ppoll __ia32_compat_sys_ppoll_time64 -416 i386 io_pgetevents_time64 sys_io_pgetevents __ia32_sys_io_pgetevents -417 i386 recvmmsg_time64 sys_recvmmsg __ia32_compat_sys_recvmmsg_time64 -418 i386 mq_timedsend_time64 sys_mq_timedsend __ia32_sys_mq_timedsend -419 i386 mq_timedreceive_time64 sys_mq_timedreceive __ia32_sys_mq_timedreceive -420 i386 semtimedop_time64 sys_semtimedop __ia32_sys_semtimedop -421 i386 rt_sigtimedwait_time64 sys_rt_sigtimedwait __ia32_compat_sys_rt_sigtimedwait_time64 -422 i386 futex_time64 sys_futex __ia32_sys_futex -423 i386 sched_rr_get_interval_time64 sys_sched_rr_get_interval __ia32_sys_sched_rr_get_interval -424 i386 pidfd_send_signal sys_pidfd_send_signal __ia32_sys_pidfd_send_signal -425 i386 io_uring_setup sys_io_uring_setup __ia32_sys_io_uring_setup -426 i386 io_uring_enter sys_io_uring_enter __ia32_sys_io_uring_enter -427 i386 io_uring_register sys_io_uring_register __ia32_sys_io_uring_register -428 i386 open_tree sys_open_tree __ia32_sys_open_tree -429 i386 move_mount sys_move_mount __ia32_sys_move_mount -430 i386 fsopen sys_fsopen __ia32_sys_fsopen -431 i386 fsconfig sys_fsconfig __ia32_sys_fsconfig -432 i386 fsmount sys_fsmount __ia32_sys_fsmount -433 i386 fspick sys_fspick __ia32_sys_fspick -434 i386 pidfd_open sys_pidfd_open __ia32_sys_pidfd_open -435 i386 clone3 sys_clone3 __ia32_sys_clone3 -437 i386 openat2 sys_openat2 __ia32_sys_openat2 -438 i386 pidfd_getfd sys_pidfd_getfd __ia32_sys_pidfd_getfd +286 i386 add_key sys_add_key +287 i386 request_key sys_request_key +288 i386 keyctl sys_keyctl compat_sys_keyctl +289 i386 ioprio_set sys_ioprio_set +290 i386 ioprio_get sys_ioprio_get +291 i386 inotify_init sys_inotify_init +292 i386 inotify_add_watch sys_inotify_add_watch +293 i386 inotify_rm_watch sys_inotify_rm_watch +294 i386 migrate_pages sys_migrate_pages +295 i386 openat sys_openat compat_sys_openat +296 i386 mkdirat sys_mkdirat +297 i386 mknodat sys_mknodat +298 i386 fchownat sys_fchownat +299 i386 futimesat sys_futimesat_time32 +300 i386 fstatat64 sys_fstatat64 compat_sys_ia32_fstatat64 +301 i386 unlinkat sys_unlinkat +302 i386 renameat sys_renameat +303 i386 linkat sys_linkat +304 i386 symlinkat sys_symlinkat +305 i386 readlinkat sys_readlinkat +306 i386 fchmodat sys_fchmodat +307 i386 faccessat sys_faccessat +308 i386 pselect6 sys_pselect6_time32 compat_sys_pselect6_time32 +309 i386 ppoll sys_ppoll_time32 compat_sys_ppoll_time32 +310 i386 unshare sys_unshare +311 i386 set_robust_list sys_set_robust_list compat_sys_set_robust_list +312 i386 get_robust_list sys_get_robust_list compat_sys_get_robust_list +313 i386 splice sys_splice +314 i386 sync_file_range sys_ia32_sync_file_range +315 i386 tee sys_tee +316 i386 vmsplice sys_vmsplice compat_sys_vmsplice +317 i386 move_pages sys_move_pages compat_sys_move_pages +318 i386 getcpu sys_getcpu +319 i386 epoll_pwait sys_epoll_pwait +320 i386 utimensat sys_utimensat_time32 +321 i386 signalfd sys_signalfd compat_sys_signalfd +322 i386 timerfd_create sys_timerfd_create +323 i386 eventfd sys_eventfd +324 i386 fallocate sys_ia32_fallocate +325 i386 timerfd_settime sys_timerfd_settime32 +326 i386 timerfd_gettime sys_timerfd_gettime32 +327 i386 signalfd4 sys_signalfd4 compat_sys_signalfd4 +328 i386 eventfd2 sys_eventfd2 +329 i386 epoll_create1 sys_epoll_create1 +330 i386 dup3 sys_dup3 +331 i386 pipe2 sys_pipe2 +332 i386 inotify_init1 sys_inotify_init1 +333 i386 preadv sys_preadv compat_sys_preadv +334 i386 pwritev sys_pwritev compat_sys_pwritev +335 i386 rt_tgsigqueueinfo sys_rt_tgsigqueueinfo compat_sys_rt_tgsigqueueinfo +336 i386 perf_event_open sys_perf_event_open +337 i386 recvmmsg sys_recvmmsg_time32 compat_sys_recvmmsg_time32 +338 i386 fanotify_init sys_fanotify_init +339 i386 fanotify_mark sys_fanotify_mark compat_sys_fanotify_mark +340 i386 prlimit64 sys_prlimit64 +341 i386 name_to_handle_at sys_name_to_handle_at +342 i386 open_by_handle_at sys_open_by_handle_at compat_sys_open_by_handle_at +343 i386 clock_adjtime sys_clock_adjtime32 +344 i386 syncfs sys_syncfs +345 i386 sendmmsg sys_sendmmsg compat_sys_sendmmsg +346 i386 setns sys_setns +347 i386 process_vm_readv sys_process_vm_readv compat_sys_process_vm_readv +348 i386 process_vm_writev sys_process_vm_writev compat_sys_process_vm_writev +349 i386 kcmp sys_kcmp +350 i386 finit_module sys_finit_module +351 i386 sched_setattr sys_sched_setattr +352 i386 sched_getattr sys_sched_getattr +353 i386 renameat2 sys_renameat2 +354 i386 seccomp sys_seccomp +355 i386 getrandom sys_getrandom +356 i386 memfd_create sys_memfd_create +357 i386 bpf sys_bpf +358 i386 execveat sys_execveat compat_sys_execveat +359 i386 socket sys_socket +360 i386 socketpair sys_socketpair +361 i386 bind sys_bind +362 i386 connect sys_connect +363 i386 listen sys_listen +364 i386 accept4 sys_accept4 +365 i386 getsockopt sys_getsockopt compat_sys_getsockopt +366 i386 setsockopt sys_setsockopt compat_sys_setsockopt +367 i386 getsockname sys_getsockname +368 i386 getpeername sys_getpeername +369 i386 sendto sys_sendto +370 i386 sendmsg sys_sendmsg compat_sys_sendmsg +371 i386 recvfrom sys_recvfrom compat_sys_recvfrom +372 i386 recvmsg sys_recvmsg compat_sys_recvmsg +373 i386 shutdown sys_shutdown +374 i386 userfaultfd sys_userfaultfd +375 i386 membarrier sys_membarrier +376 i386 mlock2 sys_mlock2 +377 i386 copy_file_range sys_copy_file_range +378 i386 preadv2 sys_preadv2 compat_sys_preadv2 +379 i386 pwritev2 sys_pwritev2 compat_sys_pwritev2 +380 i386 pkey_mprotect sys_pkey_mprotect +381 i386 pkey_alloc sys_pkey_alloc +382 i386 pkey_free sys_pkey_free +383 i386 statx sys_statx +384 i386 arch_prctl sys_arch_prctl compat_sys_arch_prctl +385 i386 io_pgetevents sys_io_pgetevents_time32 compat_sys_io_pgetevents +386 i386 rseq sys_rseq +393 i386 semget sys_semget +394 i386 semctl sys_semctl compat_sys_semctl +395 i386 shmget sys_shmget +396 i386 shmctl sys_shmctl compat_sys_shmctl +397 i386 shmat sys_shmat compat_sys_shmat +398 i386 shmdt sys_shmdt +399 i386 msgget sys_msgget +400 i386 msgsnd sys_msgsnd compat_sys_msgsnd +401 i386 msgrcv sys_msgrcv compat_sys_msgrcv +402 i386 msgctl sys_msgctl compat_sys_msgctl +403 i386 clock_gettime64 sys_clock_gettime +404 i386 clock_settime64 sys_clock_settime +405 i386 clock_adjtime64 sys_clock_adjtime +406 i386 clock_getres_time64 sys_clock_getres +407 i386 clock_nanosleep_time64 sys_clock_nanosleep +408 i386 timer_gettime64 sys_timer_gettime +409 i386 timer_settime64 sys_timer_settime +410 i386 timerfd_gettime64 sys_timerfd_gettime +411 i386 timerfd_settime64 sys_timerfd_settime +412 i386 utimensat_time64 sys_utimensat +413 i386 pselect6_time64 sys_pselect6 compat_sys_pselect6_time64 +414 i386 ppoll_time64 sys_ppoll compat_sys_ppoll_time64 +416 i386 io_pgetevents_time64 sys_io_pgetevents +417 i386 recvmmsg_time64 sys_recvmmsg compat_sys_recvmmsg_time64 +418 i386 mq_timedsend_time64 sys_mq_timedsend +419 i386 mq_timedreceive_time64 sys_mq_timedreceive +420 i386 semtimedop_time64 sys_semtimedop +421 i386 rt_sigtimedwait_time64 sys_rt_sigtimedwait compat_sys_rt_sigtimedwait_time64 +422 i386 futex_time64 sys_futex +423 i386 sched_rr_get_interval_time64 sys_sched_rr_get_interval +424 i386 pidfd_send_signal sys_pidfd_send_signal +425 i386 io_uring_setup sys_io_uring_setup +426 i386 io_uring_enter sys_io_uring_enter +427 i386 io_uring_register sys_io_uring_register +428 i386 open_tree sys_open_tree +429 i386 move_mount sys_move_mount +430 i386 fsopen sys_fsopen +431 i386 fsconfig sys_fsconfig +432 i386 fsmount sys_fsmount +433 i386 fspick sys_fspick +434 i386 pidfd_open sys_pidfd_open +435 i386 clone3 sys_clone3 +437 i386 openat2 sys_openat2 +438 i386 pidfd_getfd sys_pidfd_getfd diff --git a/arch/x86/entry/syscalls/syscall_64.tbl b/arch/x86/entry/syscalls/syscall_64.tbl index 44d510bc9b78..37b844f839bc 100644 --- a/arch/x86/entry/syscalls/syscall_64.tbl +++ b/arch/x86/entry/syscalls/syscall_64.tbl @@ -8,357 +8,357 @@ # # The abi is "common", "64" or "x32" for this file. # -0 common read __x64_sys_read -1 common write __x64_sys_write -2 common open __x64_sys_open -3 common close __x64_sys_close -4 common stat __x64_sys_newstat -5 common fstat __x64_sys_newfstat -6 common lstat __x64_sys_newlstat -7 common poll __x64_sys_poll -8 common lseek __x64_sys_lseek -9 common mmap __x64_sys_mmap -10 common mprotect __x64_sys_mprotect -11 common munmap __x64_sys_munmap -12 common brk __x64_sys_brk -13 64 rt_sigaction __x64_sys_rt_sigaction -14 common rt_sigprocmask __x64_sys_rt_sigprocmask -15 64 rt_sigreturn __x64_sys_rt_sigreturn/ptregs -16 64 ioctl __x64_sys_ioctl -17 common pread64 __x64_sys_pread64 -18 common pwrite64 __x64_sys_pwrite64 -19 64 readv __x64_sys_readv -20 64 writev __x64_sys_writev -21 common access __x64_sys_access -22 common pipe __x64_sys_pipe -23 common select __x64_sys_select -24 common sched_yield __x64_sys_sched_yield -25 common mremap __x64_sys_mremap -26 common msync __x64_sys_msync -27 common mincore __x64_sys_mincore -28 common madvise __x64_sys_madvise -29 common shmget __x64_sys_shmget -30 common shmat __x64_sys_shmat -31 common shmctl __x64_sys_shmctl -32 common dup __x64_sys_dup -33 common dup2 __x64_sys_dup2 -34 common pause __x64_sys_pause -35 common nanosleep __x64_sys_nanosleep -36 common getitimer __x64_sys_getitimer -37 common alarm __x64_sys_alarm -38 common setitimer __x64_sys_setitimer -39 common getpid __x64_sys_getpid -40 common sendfile __x64_sys_sendfile64 -41 common socket __x64_sys_socket -42 common connect __x64_sys_connect -43 common accept __x64_sys_accept -44 common sendto __x64_sys_sendto -45 64 recvfrom __x64_sys_recvfrom -46 64 sendmsg __x64_sys_sendmsg -47 64 recvmsg __x64_sys_recvmsg -48 common shutdown __x64_sys_shutdown -49 common bind __x64_sys_bind -50 common listen __x64_sys_listen -51 common getsockname __x64_sys_getsockname -52 common getpeername __x64_sys_getpeername -53 common socketpair __x64_sys_socketpair -54 64 setsockopt __x64_sys_setsockopt -55 64 getsockopt __x64_sys_getsockopt -56 common clone __x64_sys_clone/ptregs -57 common fork __x64_sys_fork/ptregs -58 common vfork __x64_sys_vfork/ptregs -59 64 execve __x64_sys_execve/ptregs -60 common exit __x64_sys_exit -61 common wait4 __x64_sys_wait4 -62 common kill __x64_sys_kill -63 common uname __x64_sys_newuname -64 common semget __x64_sys_semget -65 common semop __x64_sys_semop -66 common semctl __x64_sys_semctl -67 common shmdt __x64_sys_shmdt -68 common msgget __x64_sys_msgget -69 common msgsnd __x64_sys_msgsnd -70 common msgrcv __x64_sys_msgrcv -71 common msgctl __x64_sys_msgctl -72 common fcntl __x64_sys_fcntl -73 common flock __x64_sys_flock -74 common fsync __x64_sys_fsync -75 common fdatasync __x64_sys_fdatasync -76 common truncate __x64_sys_truncate -77 common ftruncate __x64_sys_ftruncate -78 common getdents __x64_sys_getdents -79 common getcwd __x64_sys_getcwd -80 common chdir __x64_sys_chdir -81 common fchdir __x64_sys_fchdir -82 common rename __x64_sys_rename -83 common mkdir __x64_sys_mkdir -84 common rmdir __x64_sys_rmdir -85 common creat __x64_sys_creat -86 common link __x64_sys_link -87 common unlink __x64_sys_unlink -88 common symlink __x64_sys_symlink -89 common readlink __x64_sys_readlink -90 common chmod __x64_sys_chmod -91 common fchmod __x64_sys_fchmod -92 common chown __x64_sys_chown -93 common fchown __x64_sys_fchown -94 common lchown __x64_sys_lchown -95 common umask __x64_sys_umask -96 common gettimeofday __x64_sys_gettimeofday -97 common getrlimit __x64_sys_getrlimit -98 common getrusage __x64_sys_getrusage -99 common sysinfo __x64_sys_sysinfo -100 common times __x64_sys_times -101 64 ptrace __x64_sys_ptrace -102 common getuid __x64_sys_getuid -103 common syslog __x64_sys_syslog -104 common getgid __x64_sys_getgid -105 common setuid __x64_sys_setuid -106 common setgid __x64_sys_setgid -107 common geteuid __x64_sys_geteuid -108 common getegid __x64_sys_getegid -109 common setpgid __x64_sys_setpgid -110 common getppid __x64_sys_getppid -111 common getpgrp __x64_sys_getpgrp -112 common setsid __x64_sys_setsid -113 common setreuid __x64_sys_setreuid -114 common setregid __x64_sys_setregid -115 common getgroups __x64_sys_getgroups -116 common setgroups __x64_sys_setgroups -117 common setresuid __x64_sys_setresuid -118 common getresuid __x64_sys_getresuid -119 common setresgid __x64_sys_setresgid -120 common getresgid __x64_sys_getresgid -121 common getpgid __x64_sys_getpgid -122 common setfsuid __x64_sys_setfsuid -123 common setfsgid __x64_sys_setfsgid -124 common getsid __x64_sys_getsid -125 common capget __x64_sys_capget -126 common capset __x64_sys_capset -127 64 rt_sigpending __x64_sys_rt_sigpending -128 64 rt_sigtimedwait __x64_sys_rt_sigtimedwait -129 64 rt_sigqueueinfo __x64_sys_rt_sigqueueinfo -130 common rt_sigsuspend __x64_sys_rt_sigsuspend -131 64 sigaltstack __x64_sys_sigaltstack -132 common utime __x64_sys_utime -133 common mknod __x64_sys_mknod +0 common read sys_read +1 common write sys_write +2 common open sys_open +3 common close sys_close +4 common stat sys_newstat +5 common fstat sys_newfstat +6 common lstat sys_newlstat +7 common poll sys_poll +8 common lseek sys_lseek +9 common mmap sys_mmap +10 common mprotect sys_mprotect +11 common munmap sys_munmap +12 common brk sys_brk +13 64 rt_sigaction sys_rt_sigaction +14 common rt_sigprocmask sys_rt_sigprocmask +15 64 rt_sigreturn sys_rt_sigreturn +16 64 ioctl sys_ioctl +17 common pread64 sys_pread64 +18 common pwrite64 sys_pwrite64 +19 64 readv sys_readv +20 64 writev sys_writev +21 common access sys_access +22 common pipe sys_pipe +23 common select sys_select +24 common sched_yield sys_sched_yield +25 common mremap sys_mremap +26 common msync sys_msync +27 common mincore sys_mincore +28 common madvise sys_madvise +29 common shmget sys_shmget +30 common shmat sys_shmat +31 common shmctl sys_shmctl +32 common dup sys_dup +33 common dup2 sys_dup2 +34 common pause sys_pause +35 common nanosleep sys_nanosleep +36 common getitimer sys_getitimer +37 common alarm sys_alarm +38 common setitimer sys_setitimer +39 common getpid sys_getpid +40 common sendfile sys_sendfile64 +41 common socket sys_socket +42 common connect sys_connect +43 common accept sys_accept +44 common sendto sys_sendto +45 64 recvfrom sys_recvfrom +46 64 sendmsg sys_sendmsg +47 64 recvmsg sys_recvmsg +48 common shutdown sys_shutdown +49 common bind sys_bind +50 common listen sys_listen +51 common getsockname sys_getsockname +52 common getpeername sys_getpeername +53 common socketpair sys_socketpair +54 64 setsockopt sys_setsockopt +55 64 getsockopt sys_getsockopt +56 common clone sys_clone +57 common fork sys_fork +58 common vfork sys_vfork +59 64 execve sys_execve +60 common exit sys_exit +61 common wait4 sys_wait4 +62 common kill sys_kill +63 common uname sys_newuname +64 common semget sys_semget +65 common semop sys_semop +66 common semctl sys_semctl +67 common shmdt sys_shmdt +68 common msgget sys_msgget +69 common msgsnd sys_msgsnd +70 common msgrcv sys_msgrcv +71 common msgctl sys_msgctl +72 common fcntl sys_fcntl +73 common flock sys_flock +74 common fsync sys_fsync +75 common fdatasync sys_fdatasync +76 common truncate sys_truncate +77 common ftruncate sys_ftruncate +78 common getdents sys_getdents +79 common getcwd sys_getcwd +80 common chdir sys_chdir +81 common fchdir sys_fchdir +82 common rename sys_rename +83 common mkdir sys_mkdir +84 common rmdir sys_rmdir +85 common creat sys_creat +86 common link sys_link +87 common unlink sys_unlink +88 common symlink sys_symlink +89 common readlink sys_readlink +90 common chmod sys_chmod +91 common fchmod sys_fchmod +92 common chown sys_chown +93 common fchown sys_fchown +94 common lchown sys_lchown +95 common umask sys_umask +96 common gettimeofday sys_gettimeofday +97 common getrlimit sys_getrlimit +98 common getrusage sys_getrusage +99 common sysinfo sys_sysinfo +100 common times sys_times +101 64 ptrace sys_ptrace +102 common getuid sys_getuid +103 common syslog sys_syslog +104 common getgid sys_getgid +105 common setuid sys_setuid +106 common setgid sys_setgid +107 common geteuid sys_geteuid +108 common getegid sys_getegid +109 common setpgid sys_setpgid +110 common getppid sys_getppid +111 common getpgrp sys_getpgrp +112 common setsid sys_setsid +113 common setreuid sys_setreuid +114 common setregid sys_setregid +115 common getgroups sys_getgroups +116 common setgroups sys_setgroups +117 common setresuid sys_setresuid +118 common getresuid sys_getresuid +119 common setresgid sys_setresgid +120 common getresgid sys_getresgid +121 common getpgid sys_getpgid +122 common setfsuid sys_setfsuid +123 common setfsgid sys_setfsgid +124 common getsid sys_getsid +125 common capget sys_capget +126 common capset sys_capset +127 64 rt_sigpending sys_rt_sigpending +128 64 rt_sigtimedwait sys_rt_sigtimedwait +129 64 rt_sigqueueinfo sys_rt_sigqueueinfo +130 common rt_sigsuspend sys_rt_sigsuspend +131 64 sigaltstack sys_sigaltstack +132 common utime sys_utime +133 common mknod sys_mknod 134 64 uselib -135 common personality __x64_sys_personality -136 common ustat __x64_sys_ustat -137 common statfs __x64_sys_statfs -138 common fstatfs __x64_sys_fstatfs -139 common sysfs __x64_sys_sysfs -140 common getpriority __x64_sys_getpriority -141 common setpriority __x64_sys_setpriority -142 common sched_setparam __x64_sys_sched_setparam -143 common sched_getparam __x64_sys_sched_getparam -144 common sched_setscheduler __x64_sys_sched_setscheduler -145 common sched_getscheduler __x64_sys_sched_getscheduler -146 common sched_get_priority_max __x64_sys_sched_get_priority_max -147 common sched_get_priority_min __x64_sys_sched_get_priority_min -148 common sched_rr_get_interval __x64_sys_sched_rr_get_interval -149 common mlock __x64_sys_mlock -150 common munlock __x64_sys_munlock -151 common mlockall __x64_sys_mlockall -152 common munlockall __x64_sys_munlockall -153 common vhangup __x64_sys_vhangup -154 common modify_ldt __x64_sys_modify_ldt -155 common pivot_root __x64_sys_pivot_root -156 64 _sysctl __x64_sys_sysctl -157 common prctl __x64_sys_prctl -158 common arch_prctl __x64_sys_arch_prctl -159 common adjtimex __x64_sys_adjtimex -160 common setrlimit __x64_sys_setrlimit -161 common chroot __x64_sys_chroot -162 common sync __x64_sys_sync -163 common acct __x64_sys_acct -164 common settimeofday __x64_sys_settimeofday -165 common mount __x64_sys_mount -166 common umount2 __x64_sys_umount -167 common swapon __x64_sys_swapon -168 common swapoff __x64_sys_swapoff -169 common reboot __x64_sys_reboot -170 common sethostname __x64_sys_sethostname -171 common setdomainname __x64_sys_setdomainname -172 common iopl __x64_sys_iopl/ptregs -173 common ioperm __x64_sys_ioperm +135 common personality sys_personality +136 common ustat sys_ustat +137 common statfs sys_statfs +138 common fstatfs sys_fstatfs +139 common sysfs sys_sysfs +140 common getpriority sys_getpriority +141 common setpriority sys_setpriority +142 common sched_setparam sys_sched_setparam +143 common sched_getparam sys_sched_getparam +144 common sched_setscheduler sys_sched_setscheduler +145 common sched_getscheduler sys_sched_getscheduler +146 common sched_get_priority_max sys_sched_get_priority_max +147 common sched_get_priority_min sys_sched_get_priority_min +148 common sched_rr_get_interval sys_sched_rr_get_interval +149 common mlock sys_mlock +150 common munlock sys_munlock +151 common mlockall sys_mlockall +152 common munlockall sys_munlockall +153 common vhangup sys_vhangup +154 common modify_ldt sys_modify_ldt +155 common pivot_root sys_pivot_root +156 64 _sysctl sys_sysctl +157 common prctl sys_prctl +158 common arch_prctl sys_arch_prctl +159 common adjtimex sys_adjtimex +160 common setrlimit sys_setrlimit +161 common chroot sys_chroot +162 common sync sys_sync +163 common acct sys_acct +164 common settimeofday sys_settimeofday +165 common mount sys_mount +166 common umount2 sys_umount +167 common swapon sys_swapon +168 common swapoff sys_swapoff +169 common reboot sys_reboot +170 common sethostname sys_sethostname +171 common setdomainname sys_setdomainname +172 common iopl sys_iopl +173 common ioperm sys_ioperm 174 64 create_module -175 common init_module __x64_sys_init_module -176 common delete_module __x64_sys_delete_module +175 common init_module sys_init_module +176 common delete_module sys_delete_module 177 64 get_kernel_syms 178 64 query_module -179 common quotactl __x64_sys_quotactl +179 common quotactl sys_quotactl 180 64 nfsservctl 181 common getpmsg 182 common putpmsg 183 common afs_syscall 184 common tuxcall 185 common security -186 common gettid __x64_sys_gettid -187 common readahead __x64_sys_readahead -188 common setxattr __x64_sys_setxattr -189 common lsetxattr __x64_sys_lsetxattr -190 common fsetxattr __x64_sys_fsetxattr -191 common getxattr __x64_sys_getxattr -192 common lgetxattr __x64_sys_lgetxattr -193 common fgetxattr __x64_sys_fgetxattr -194 common listxattr __x64_sys_listxattr -195 common llistxattr __x64_sys_llistxattr -196 common flistxattr __x64_sys_flistxattr -197 common removexattr __x64_sys_removexattr -198 common lremovexattr __x64_sys_lremovexattr -199 common fremovexattr __x64_sys_fremovexattr -200 common tkill __x64_sys_tkill -201 common time __x64_sys_time -202 common futex __x64_sys_futex -203 common sched_setaffinity __x64_sys_sched_setaffinity -204 common sched_getaffinity __x64_sys_sched_getaffinity +186 common gettid sys_gettid +187 common readahead sys_readahead +188 common setxattr sys_setxattr +189 common lsetxattr sys_lsetxattr +190 common fsetxattr sys_fsetxattr +191 common getxattr sys_getxattr +192 common lgetxattr sys_lgetxattr +193 common fgetxattr sys_fgetxattr +194 common listxattr sys_listxattr +195 common llistxattr sys_llistxattr +196 common flistxattr sys_flistxattr +197 common removexattr sys_removexattr +198 common lremovexattr sys_lremovexattr +199 common fremovexattr sys_fremovexattr +200 common tkill sys_tkill +201 common time sys_time +202 common futex sys_futex +203 common sched_setaffinity sys_sched_setaffinity +204 common sched_getaffinity sys_sched_getaffinity 205 64 set_thread_area -206 64 io_setup __x64_sys_io_setup -207 common io_destroy __x64_sys_io_destroy -208 common io_getevents __x64_sys_io_getevents -209 64 io_submit __x64_sys_io_submit -210 common io_cancel __x64_sys_io_cancel +206 64 io_setup sys_io_setup +207 common io_destroy sys_io_destroy +208 common io_getevents sys_io_getevents +209 64 io_submit sys_io_submit +210 common io_cancel sys_io_cancel 211 64 get_thread_area -212 common lookup_dcookie __x64_sys_lookup_dcookie -213 common epoll_create __x64_sys_epoll_create +212 common lookup_dcookie sys_lookup_dcookie +213 common epoll_create sys_epoll_create 214 64 epoll_ctl_old 215 64 epoll_wait_old -216 common remap_file_pages __x64_sys_remap_file_pages -217 common getdents64 __x64_sys_getdents64 -218 common set_tid_address __x64_sys_set_tid_address -219 common restart_syscall __x64_sys_restart_syscall -220 common semtimedop __x64_sys_semtimedop -221 common fadvise64 __x64_sys_fadvise64 -222 64 timer_create __x64_sys_timer_create -223 common timer_settime __x64_sys_timer_settime -224 common timer_gettime __x64_sys_timer_gettime -225 common timer_getoverrun __x64_sys_timer_getoverrun -226 common timer_delete __x64_sys_timer_delete -227 common clock_settime __x64_sys_clock_settime -228 common clock_gettime __x64_sys_clock_gettime -229 common clock_getres __x64_sys_clock_getres -230 common clock_nanosleep __x64_sys_clock_nanosleep -231 common exit_group __x64_sys_exit_group -232 common epoll_wait __x64_sys_epoll_wait -233 common epoll_ctl __x64_sys_epoll_ctl -234 common tgkill __x64_sys_tgkill -235 common utimes __x64_sys_utimes +216 common remap_file_pages sys_remap_file_pages +217 common getdents64 sys_getdents64 +218 common set_tid_address sys_set_tid_address +219 common restart_syscall sys_restart_syscall +220 common semtimedop sys_semtimedop +221 common fadvise64 sys_fadvise64 +222 64 timer_create sys_timer_create +223 common timer_settime sys_timer_settime +224 common timer_gettime sys_timer_gettime +225 common timer_getoverrun sys_timer_getoverrun +226 common timer_delete sys_timer_delete +227 common clock_settime sys_clock_settime +228 common clock_gettime sys_clock_gettime +229 common clock_getres sys_clock_getres +230 common clock_nanosleep sys_clock_nanosleep +231 common exit_group sys_exit_group +232 common epoll_wait sys_epoll_wait +233 common epoll_ctl sys_epoll_ctl +234 common tgkill sys_tgkill +235 common utimes sys_utimes 236 64 vserver -237 common mbind __x64_sys_mbind -238 common set_mempolicy __x64_sys_set_mempolicy -239 common get_mempolicy __x64_sys_get_mempolicy -240 common mq_open __x64_sys_mq_open -241 common mq_unlink __x64_sys_mq_unlink -242 common mq_timedsend __x64_sys_mq_timedsend -243 common mq_timedreceive __x64_sys_mq_timedreceive -244 64 mq_notify __x64_sys_mq_notify -245 common mq_getsetattr __x64_sys_mq_getsetattr -246 64 kexec_load __x64_sys_kexec_load -247 64 waitid __x64_sys_waitid -248 common add_key __x64_sys_add_key -249 common request_key __x64_sys_request_key -250 common keyctl __x64_sys_keyctl -251 common ioprio_set __x64_sys_ioprio_set -252 common ioprio_get __x64_sys_ioprio_get -253 common inotify_init __x64_sys_inotify_init -254 common inotify_add_watch __x64_sys_inotify_add_watch -255 common inotify_rm_watch __x64_sys_inotify_rm_watch -256 common migrate_pages __x64_sys_migrate_pages -257 common openat __x64_sys_openat -258 common mkdirat __x64_sys_mkdirat -259 common mknodat __x64_sys_mknodat -260 common fchownat __x64_sys_fchownat -261 common futimesat __x64_sys_futimesat -262 common newfstatat __x64_sys_newfstatat -263 common unlinkat __x64_sys_unlinkat -264 common renameat __x64_sys_renameat -265 common linkat __x64_sys_linkat -266 common symlinkat __x64_sys_symlinkat -267 common readlinkat __x64_sys_readlinkat -268 common fchmodat __x64_sys_fchmodat -269 common faccessat __x64_sys_faccessat -270 common pselect6 __x64_sys_pselect6 -271 common ppoll __x64_sys_ppoll -272 common unshare __x64_sys_unshare -273 64 set_robust_list __x64_sys_set_robust_list -274 64 get_robust_list __x64_sys_get_robust_list -275 common splice __x64_sys_splice -276 common tee __x64_sys_tee -277 common sync_file_range __x64_sys_sync_file_range -278 64 vmsplice __x64_sys_vmsplice -279 64 move_pages __x64_sys_move_pages -280 common utimensat __x64_sys_utimensat -281 common epoll_pwait __x64_sys_epoll_pwait -282 common signalfd __x64_sys_signalfd -283 common timerfd_create __x64_sys_timerfd_create -284 common eventfd __x64_sys_eventfd -285 common fallocate __x64_sys_fallocate -286 common timerfd_settime __x64_sys_timerfd_settime -287 common timerfd_gettime __x64_sys_timerfd_gettime -288 common accept4 __x64_sys_accept4 -289 common signalfd4 __x64_sys_signalfd4 -290 common eventfd2 __x64_sys_eventfd2 -291 common epoll_create1 __x64_sys_epoll_create1 -292 common dup3 __x64_sys_dup3 -293 common pipe2 __x64_sys_pipe2 -294 common inotify_init1 __x64_sys_inotify_init1 -295 64 preadv __x64_sys_preadv -296 64 pwritev __x64_sys_pwritev -297 64 rt_tgsigqueueinfo __x64_sys_rt_tgsigqueueinfo -298 common perf_event_open __x64_sys_perf_event_open -299 64 recvmmsg __x64_sys_recvmmsg -300 common fanotify_init __x64_sys_fanotify_init -301 common fanotify_mark __x64_sys_fanotify_mark -302 common prlimit64 __x64_sys_prlimit64 -303 common name_to_handle_at __x64_sys_name_to_handle_at -304 common open_by_handle_at __x64_sys_open_by_handle_at -305 common clock_adjtime __x64_sys_clock_adjtime -306 common syncfs __x64_sys_syncfs -307 64 sendmmsg __x64_sys_sendmmsg -308 common setns __x64_sys_setns -309 common getcpu __x64_sys_getcpu -310 64 process_vm_readv __x64_sys_process_vm_readv -311 64 process_vm_writev __x64_sys_process_vm_writev -312 common kcmp __x64_sys_kcmp -313 common finit_module __x64_sys_finit_module -314 common sched_setattr __x64_sys_sched_setattr -315 common sched_getattr __x64_sys_sched_getattr -316 common renameat2 __x64_sys_renameat2 -317 common seccomp __x64_sys_seccomp -318 common getrandom __x64_sys_getrandom -319 common memfd_create __x64_sys_memfd_create -320 common kexec_file_load __x64_sys_kexec_file_load -321 common bpf __x64_sys_bpf -322 64 execveat __x64_sys_execveat/ptregs -323 common userfaultfd __x64_sys_userfaultfd -324 common membarrier __x64_sys_membarrier -325 common mlock2 __x64_sys_mlock2 -326 common copy_file_range __x64_sys_copy_file_range -327 64 preadv2 __x64_sys_preadv2 -328 64 pwritev2 __x64_sys_pwritev2 -329 common pkey_mprotect __x64_sys_pkey_mprotect -330 common pkey_alloc __x64_sys_pkey_alloc -331 common pkey_free __x64_sys_pkey_free -332 common statx __x64_sys_statx -333 common io_pgetevents __x64_sys_io_pgetevents -334 common rseq __x64_sys_rseq +237 common mbind sys_mbind +238 common set_mempolicy sys_set_mempolicy +239 common get_mempolicy sys_get_mempolicy +240 common mq_open sys_mq_open +241 common mq_unlink sys_mq_unlink +242 common mq_timedsend sys_mq_timedsend +243 common mq_timedreceive sys_mq_timedreceive +244 64 mq_notify sys_mq_notify +245 common mq_getsetattr sys_mq_getsetattr +246 64 kexec_load sys_kexec_load +247 64 waitid sys_waitid +248 common add_key sys_add_key +249 common request_key sys_request_key +250 common keyctl sys_keyctl +251 common ioprio_set sys_ioprio_set +252 common ioprio_get sys_ioprio_get +253 common inotify_init sys_inotify_init +254 common inotify_add_watch sys_inotify_add_watch +255 common inotify_rm_watch sys_inotify_rm_watch +256 common migrate_pages sys_migrate_pages +257 common openat sys_openat +258 common mkdirat sys_mkdirat +259 common mknodat sys_mknodat +260 common fchownat sys_fchownat +261 common futimesat sys_futimesat +262 common newfstatat sys_newfstatat +263 common unlinkat sys_unlinkat +264 common renameat sys_renameat +265 common linkat sys_linkat +266 common symlinkat sys_symlinkat +267 common readlinkat sys_readlinkat +268 common fchmodat sys_fchmodat +269 common faccessat sys_faccessat +270 common pselect6 sys_pselect6 +271 common ppoll sys_ppoll +272 common unshare sys_unshare +273 64 set_robust_list sys_set_robust_list +274 64 get_robust_list sys_get_robust_list +275 common splice sys_splice +276 common tee sys_tee +277 common sync_file_range sys_sync_file_range +278 64 vmsplice sys_vmsplice +279 64 move_pages sys_move_pages +280 common utimensat sys_utimensat +281 common epoll_pwait sys_epoll_pwait +282 common signalfd sys_signalfd +283 common timerfd_create sys_timerfd_create +284 common eventfd sys_eventfd +285 common fallocate sys_fallocate +286 common timerfd_settime sys_timerfd_settime +287 common timerfd_gettime sys_timerfd_gettime +288 common accept4 sys_accept4 +289 common signalfd4 sys_signalfd4 +290 common eventfd2 sys_eventfd2 +291 common epoll_create1 sys_epoll_create1 +292 common dup3 sys_dup3 +293 common pipe2 sys_pipe2 +294 common inotify_init1 sys_inotify_init1 +295 64 preadv sys_preadv +296 64 pwritev sys_pwritev +297 64 rt_tgsigqueueinfo sys_rt_tgsigqueueinfo +298 common perf_event_open sys_perf_event_open +299 64 recvmmsg sys_recvmmsg +300 common fanotify_init sys_fanotify_init +301 common fanotify_mark sys_fanotify_mark +302 common prlimit64 sys_prlimit64 +303 common name_to_handle_at sys_name_to_handle_at +304 common open_by_handle_at sys_open_by_handle_at +305 common clock_adjtime sys_clock_adjtime +306 common syncfs sys_syncfs +307 64 sendmmsg sys_sendmmsg +308 common setns sys_setns +309 common getcpu sys_getcpu +310 64 process_vm_readv sys_process_vm_readv +311 64 process_vm_writev sys_process_vm_writev +312 common kcmp sys_kcmp +313 common finit_module sys_finit_module +314 common sched_setattr sys_sched_setattr +315 common sched_getattr sys_sched_getattr +316 common renameat2 sys_renameat2 +317 common seccomp sys_seccomp +318 common getrandom sys_getrandom +319 common memfd_create sys_memfd_create +320 common kexec_file_load sys_kexec_file_load +321 common bpf sys_bpf +322 64 execveat sys_execveat +323 common userfaultfd sys_userfaultfd +324 common membarrier sys_membarrier +325 common mlock2 sys_mlock2 +326 common copy_file_range sys_copy_file_range +327 64 preadv2 sys_preadv2 +328 64 pwritev2 sys_pwritev2 +329 common pkey_mprotect sys_pkey_mprotect +330 common pkey_alloc sys_pkey_alloc +331 common pkey_free sys_pkey_free +332 common statx sys_statx +333 common io_pgetevents sys_io_pgetevents +334 common rseq sys_rseq # don't use numbers 387 through 423, add new calls after the last # 'common' entry -424 common pidfd_send_signal __x64_sys_pidfd_send_signal -425 common io_uring_setup __x64_sys_io_uring_setup -426 common io_uring_enter __x64_sys_io_uring_enter -427 common io_uring_register __x64_sys_io_uring_register -428 common open_tree __x64_sys_open_tree -429 common move_mount __x64_sys_move_mount -430 common fsopen __x64_sys_fsopen -431 common fsconfig __x64_sys_fsconfig -432 common fsmount __x64_sys_fsmount -433 common fspick __x64_sys_fspick -434 common pidfd_open __x64_sys_pidfd_open -435 common clone3 __x64_sys_clone3/ptregs -437 common openat2 __x64_sys_openat2 -438 common pidfd_getfd __x64_sys_pidfd_getfd +424 common pidfd_send_signal sys_pidfd_send_signal +425 common io_uring_setup sys_io_uring_setup +426 common io_uring_enter sys_io_uring_enter +427 common io_uring_register sys_io_uring_register +428 common open_tree sys_open_tree +429 common move_mount sys_move_mount +430 common fsopen sys_fsopen +431 common fsconfig sys_fsconfig +432 common fsmount sys_fsmount +433 common fspick sys_fspick +434 common pidfd_open sys_pidfd_open +435 common clone3 sys_clone3 +437 common openat2 sys_openat2 +438 common pidfd_getfd sys_pidfd_getfd # # x32-specific system call numbers start at 512 to avoid cache impact @@ -366,39 +366,39 @@ # on-the-fly for compat_sys_*() compatibility system calls if X86_X32 # is defined. # -512 x32 rt_sigaction __x32_compat_sys_rt_sigaction -513 x32 rt_sigreturn sys32_x32_rt_sigreturn -514 x32 ioctl __x32_compat_sys_ioctl -515 x32 readv __x32_compat_sys_readv -516 x32 writev __x32_compat_sys_writev -517 x32 recvfrom __x32_compat_sys_recvfrom -518 x32 sendmsg __x32_compat_sys_sendmsg -519 x32 recvmsg __x32_compat_sys_recvmsg -520 x32 execve __x32_compat_sys_execve/ptregs -521 x32 ptrace __x32_compat_sys_ptrace -522 x32 rt_sigpending __x32_compat_sys_rt_sigpending -523 x32 rt_sigtimedwait __x32_compat_sys_rt_sigtimedwait_time64 -524 x32 rt_sigqueueinfo __x32_compat_sys_rt_sigqueueinfo -525 x32 sigaltstack __x32_compat_sys_sigaltstack -526 x32 timer_create __x32_compat_sys_timer_create -527 x32 mq_notify __x32_compat_sys_mq_notify -528 x32 kexec_load __x32_compat_sys_kexec_load -529 x32 waitid __x32_compat_sys_waitid -530 x32 set_robust_list __x32_compat_sys_set_robust_list -531 x32 get_robust_list __x32_compat_sys_get_robust_list -532 x32 vmsplice __x32_compat_sys_vmsplice -533 x32 move_pages __x32_compat_sys_move_pages -534 x32 preadv __x32_compat_sys_preadv64 -535 x32 pwritev __x32_compat_sys_pwritev64 -536 x32 rt_tgsigqueueinfo __x32_compat_sys_rt_tgsigqueueinfo -537 x32 recvmmsg __x32_compat_sys_recvmmsg_time64 -538 x32 sendmmsg __x32_compat_sys_sendmmsg -539 x32 process_vm_readv __x32_compat_sys_process_vm_readv -540 x32 process_vm_writev __x32_compat_sys_process_vm_writev -541 x32 setsockopt __x32_compat_sys_setsockopt -542 x32 getsockopt __x32_compat_sys_getsockopt -543 x32 io_setup __x32_compat_sys_io_setup -544 x32 io_submit __x32_compat_sys_io_submit -545 x32 execveat __x32_compat_sys_execveat/ptregs -546 x32 preadv2 __x32_compat_sys_preadv64v2 -547 x32 pwritev2 __x32_compat_sys_pwritev64v2 +512 x32 rt_sigaction compat_sys_rt_sigaction +513 x32 rt_sigreturn compat_sys_x32_rt_sigreturn +514 x32 ioctl compat_sys_ioctl +515 x32 readv compat_sys_readv +516 x32 writev compat_sys_writev +517 x32 recvfrom compat_sys_recvfrom +518 x32 sendmsg compat_sys_sendmsg +519 x32 recvmsg compat_sys_recvmsg +520 x32 execve compat_sys_execve +521 x32 ptrace compat_sys_ptrace +522 x32 rt_sigpending compat_sys_rt_sigpending +523 x32 rt_sigtimedwait compat_sys_rt_sigtimedwait_time64 +524 x32 rt_sigqueueinfo compat_sys_rt_sigqueueinfo +525 x32 sigaltstack compat_sys_sigaltstack +526 x32 timer_create compat_sys_timer_create +527 x32 mq_notify compat_sys_mq_notify +528 x32 kexec_load compat_sys_kexec_load +529 x32 waitid compat_sys_waitid +530 x32 set_robust_list compat_sys_set_robust_list +531 x32 get_robust_list compat_sys_get_robust_list +532 x32 vmsplice compat_sys_vmsplice +533 x32 move_pages compat_sys_move_pages +534 x32 preadv compat_sys_preadv64 +535 x32 pwritev compat_sys_pwritev64 +536 x32 rt_tgsigqueueinfo compat_sys_rt_tgsigqueueinfo +537 x32 recvmmsg compat_sys_recvmmsg_time64 +538 x32 sendmmsg compat_sys_sendmmsg +539 x32 process_vm_readv compat_sys_process_vm_readv +540 x32 process_vm_writev compat_sys_process_vm_writev +541 x32 setsockopt compat_sys_setsockopt +542 x32 getsockopt compat_sys_getsockopt +543 x32 io_setup compat_sys_io_setup +544 x32 io_submit compat_sys_io_submit +545 x32 execveat compat_sys_execveat +546 x32 preadv2 compat_sys_preadv64v2 +547 x32 pwritev2 compat_sys_pwritev64v2 diff --git a/arch/x86/entry/syscalls/syscallhdr.sh b/arch/x86/entry/syscalls/syscallhdr.sh index 12fbbcfe7ef3..cc1e63857427 100644 --- a/arch/x86/entry/syscalls/syscallhdr.sh +++ b/arch/x86/entry/syscalls/syscallhdr.sh @@ -15,14 +15,21 @@ grep -E "^[0-9A-Fa-fXx]+[[:space:]]+${my_abis}" "$in" | sort -n | ( echo "#define ${fileguard} 1" echo "" + max=0 while read nr abi name entry ; do if [ -z "$offset" ]; then echo "#define __NR_${prefix}${name} $nr" else echo "#define __NR_${prefix}${name} ($offset + $nr)" fi + + max=$nr done echo "" + echo "#ifdef __KERNEL__" + echo "#define __NR_${prefix}syscall_max $max" + echo "#endif" + echo "" echo "#endif /* ${fileguard} */" ) > "$out" diff --git a/arch/x86/entry/syscalls/syscalltbl.sh b/arch/x86/entry/syscalls/syscalltbl.sh index 1af2be39e7d9..929bde120d6b 100644 --- a/arch/x86/entry/syscalls/syscalltbl.sh +++ b/arch/x86/entry/syscalls/syscalltbl.sh @@ -9,15 +9,7 @@ syscall_macro() { local nr="$2" local entry="$3" - # Entry can be either just a function name or "function/qualifier" - real_entry="${entry%%/*}" - if [ "$entry" = "$real_entry" ]; then - qualifier= - else - qualifier=${entry#*/} - fi - - echo "__SYSCALL_${abi}($nr, $real_entry, $qualifier)" + echo "__SYSCALL_${abi}($nr, $entry)" } emit() { @@ -25,27 +17,15 @@ emit() { local nr="$2" local entry="$3" local compat="$4" - local umlentry="" if [ "$abi" != "I386" -a -n "$compat" ]; then echo "a compat entry ($abi: $compat) for a 64-bit syscall makes no sense" >&2 exit 1 fi - # For CONFIG_UML, we need to strip the __x64_sys prefix - if [ "$abi" = "64" -a "${entry}" != "${entry#__x64_sys}" ]; then - umlentry="sys${entry#__x64_sys}" - fi - if [ -z "$compat" ]; then - if [ -n "$entry" -a -z "$umlentry" ]; then - syscall_macro "$abi" "$nr" "$entry" - elif [ -n "$umlentry" ]; then # implies -n "$entry" - echo "#ifdef CONFIG_X86" + if [ -n "$entry" ]; then syscall_macro "$abi" "$nr" "$entry" - echo "#else /* CONFIG_UML */" - syscall_macro "$abi" "$nr" "$umlentry" - echo "#endif" fi else echo "#ifdef CONFIG_X86_32" @@ -61,24 +41,6 @@ emit() { grep '^[0-9]' "$in" | sort -n | ( while read nr abi name entry compat; do abi=`echo "$abi" | tr '[a-z]' '[A-Z]'` - if [ "$abi" = "COMMON" -o "$abi" = "64" ]; then - emit 64 "$nr" "$entry" "$compat" - if [ "$abi" = "COMMON" ]; then - # COMMON means that this syscall exists in the same form for - # 64-bit and X32. - echo "#ifdef CONFIG_X86_X32_ABI" - emit X32 "$nr" "$entry" "$compat" - echo "#endif" - fi - elif [ "$abi" = "X32" ]; then - echo "#ifdef CONFIG_X86_X32_ABI" - emit X32 "$nr" "$entry" "$compat" - echo "#endif" - elif [ "$abi" = "I386" ]; then - emit "$abi" "$nr" "$entry" "$compat" - else - echo "Unknown abi $abi" >&2 - exit 1 - fi + emit "$abi" "$nr" "$entry" "$compat" done ) > "$out" diff --git a/arch/x86/entry/thunk_32.S b/arch/x86/entry/thunk_32.S index e010d4ae11f1..3a07ce3ec70b 100644 --- a/arch/x86/entry/thunk_32.S +++ b/arch/x86/entry/thunk_32.S @@ -35,9 +35,9 @@ SYM_CODE_END(\name) #endif #ifdef CONFIG_PREEMPTION - THUNK ___preempt_schedule, preempt_schedule - THUNK ___preempt_schedule_notrace, preempt_schedule_notrace - EXPORT_SYMBOL(___preempt_schedule) - EXPORT_SYMBOL(___preempt_schedule_notrace) + THUNK preempt_schedule_thunk, preempt_schedule + THUNK preempt_schedule_notrace_thunk, preempt_schedule_notrace + EXPORT_SYMBOL(preempt_schedule_thunk) + EXPORT_SYMBOL(preempt_schedule_notrace_thunk) #endif diff --git a/arch/x86/entry/thunk_64.S b/arch/x86/entry/thunk_64.S index c5c3b6e86e62..dbe4493b534e 100644 --- a/arch/x86/entry/thunk_64.S +++ b/arch/x86/entry/thunk_64.S @@ -47,10 +47,10 @@ SYM_FUNC_END(\name) #endif #ifdef CONFIG_PREEMPTION - THUNK ___preempt_schedule, preempt_schedule - THUNK ___preempt_schedule_notrace, preempt_schedule_notrace - EXPORT_SYMBOL(___preempt_schedule) - EXPORT_SYMBOL(___preempt_schedule_notrace) + THUNK preempt_schedule_thunk, preempt_schedule + THUNK preempt_schedule_notrace_thunk, preempt_schedule_notrace + EXPORT_SYMBOL(preempt_schedule_thunk) + EXPORT_SYMBOL(preempt_schedule_notrace_thunk) #endif #if defined(CONFIG_TRACE_IRQFLAGS) \ diff --git a/arch/x86/entry/vdso/vdso-layout.lds.S b/arch/x86/entry/vdso/vdso-layout.lds.S index ea7e0155c604..4d152933547d 100644 --- a/arch/x86/entry/vdso/vdso-layout.lds.S +++ b/arch/x86/entry/vdso/vdso-layout.lds.S @@ -57,6 +57,13 @@ SECTIONS *(.gnu.linkonce.b.*) } :text + /* + * Discard .note.gnu.property sections which are unused and have + * different alignment requirement from vDSO note sections. + */ + /DISCARD/ : { + *(.note.gnu.property) + } .note : { *(.note.*) } :text :note .eh_frame_hdr : { *(.eh_frame_hdr) } :text :eh_frame_hdr diff --git a/arch/x86/entry/vdso/vdso32/vclock_gettime.c b/arch/x86/entry/vdso/vdso32/vclock_gettime.c index 9242b28418d5..1e82bd43286c 100644 --- a/arch/x86/entry/vdso/vdso32/vclock_gettime.c +++ b/arch/x86/entry/vdso/vdso32/vclock_gettime.c @@ -13,6 +13,7 @@ */ #undef CONFIG_64BIT #undef CONFIG_X86_64 +#undef CONFIG_COMPAT #undef CONFIG_PGTABLE_LEVELS #undef CONFIG_ILLEGAL_POINTER_VALUE #undef CONFIG_SPARSEMEM_VMEMMAP diff --git a/arch/x86/entry/vdso/vma.c b/arch/x86/entry/vdso/vma.c index c1b8496b5606..43428cc514c8 100644 --- a/arch/x86/entry/vdso/vma.c +++ b/arch/x86/entry/vdso/vma.c @@ -38,6 +38,8 @@ struct vdso_data *arch_get_vdso_data(void *vvar_page) } #undef EMIT_VVAR +unsigned int vclocks_used __read_mostly; + #if defined(CONFIG_X86_64) unsigned int __read_mostly vdso64_enabled = 1; #endif @@ -219,7 +221,7 @@ static vm_fault_t vvar_fault(const struct vm_special_mapping *sm, } else if (sym_offset == image->sym_pvclock_page) { struct pvclock_vsyscall_time_info *pvti = pvclock_get_pvti_cpu0_va(); - if (pvti && vclock_was_used(VCLOCK_PVCLOCK)) { + if (pvti && vclock_was_used(VDSO_CLOCKMODE_PVCLOCK)) { return vmf_insert_pfn_prot(vma, vmf->address, __pa(pvti) >> PAGE_SHIFT, pgprot_decrypted(vma->vm_page_prot)); @@ -227,7 +229,7 @@ static vm_fault_t vvar_fault(const struct vm_special_mapping *sm, } else if (sym_offset == image->sym_hvclock_page) { struct ms_hyperv_tsc_page *tsc_pg = hv_get_tsc_page(); - if (tsc_pg && vclock_was_used(VCLOCK_HVCLOCK)) + if (tsc_pg && vclock_was_used(VDSO_CLOCKMODE_HVCLOCK)) return vmf_insert_pfn(vma, vmf->address, virt_to_phys(tsc_pg) >> PAGE_SHIFT); } else if (sym_offset == image->sym_timens_page) { @@ -445,6 +447,8 @@ __setup("vdso=", vdso_setup); static int __init init_vdso(void) { + BUILD_BUG_ON(VDSO_CLOCKMODE_MAX >= 32); + init_vdso_image(&vdso_image_64); #ifdef CONFIG_X86_X32_ABI diff --git a/arch/x86/events/amd/power.c b/arch/x86/events/amd/power.c index abef51320e3a..43b09e9c93a2 100644 --- a/arch/x86/events/amd/power.c +++ b/arch/x86/events/amd/power.c @@ -259,7 +259,7 @@ static int power_cpu_init(unsigned int cpu) } static const struct x86_cpu_id cpu_match[] = { - { .vendor = X86_VENDOR_AMD, .family = 0x15 }, + X86_MATCH_VENDOR_FAM(AMD, 0x15, NULL), {}, }; diff --git a/arch/x86/events/amd/uncore.c b/arch/x86/events/amd/uncore.c index a6ea07f2aa84..76400c052b0e 100644 --- a/arch/x86/events/amd/uncore.c +++ b/arch/x86/events/amd/uncore.c @@ -180,6 +180,31 @@ static void amd_uncore_del(struct perf_event *event, int flags) hwc->idx = -1; } +/* + * Convert logical CPU number to L3 PMC Config ThreadMask format + */ +static u64 l3_thread_slice_mask(int cpu) +{ + u64 thread_mask, core = topology_core_id(cpu); + unsigned int shift, thread = 0; + + if (topology_smt_supported() && !topology_is_primary_thread(cpu)) + thread = 1; + + if (boot_cpu_data.x86 <= 0x18) { + shift = AMD64_L3_THREAD_SHIFT + 2 * (core % 4) + thread; + thread_mask = BIT_ULL(shift); + + return AMD64_L3_SLICE_MASK | thread_mask; + } + + core = (core << AMD64_L3_COREID_SHIFT) & AMD64_L3_COREID_MASK; + shift = AMD64_L3_THREAD_SHIFT + thread; + thread_mask = BIT_ULL(shift); + + return AMD64_L3_EN_ALL_SLICES | core | thread_mask; +} + static int amd_uncore_event_init(struct perf_event *event) { struct amd_uncore *uncore; @@ -190,15 +215,12 @@ static int amd_uncore_event_init(struct perf_event *event) /* * NB and Last level cache counters (MSRs) are shared across all cores - * that share the same NB / Last level cache. Interrupts can be directed - * to a single target core, however, event counts generated by processes - * running on other cores cannot be masked out. So we do not support - * sampling and per-thread events. + * that share the same NB / Last level cache. On family 16h and below, + * Interrupts can be directed to a single target core, however, event + * counts generated by processes running on other cores cannot be masked + * out. So we do not support sampling and per-thread events via + * CAP_NO_INTERRUPT, and we do not enable counter overflow interrupts: */ - if (is_sampling_event(event) || event->attach_state & PERF_ATTACH_TASK) - return -EINVAL; - - /* and we do not enable counter overflow interrupts */ hwc->config = event->attr.config & AMD64_RAW_EVENT_MASK_NB; hwc->idx = -1; @@ -206,18 +228,11 @@ static int amd_uncore_event_init(struct perf_event *event) return -EINVAL; /* - * SliceMask and ThreadMask need to be set for certain L3 events in - * Family 17h. For other events, the two fields do not affect the count. + * SliceMask and ThreadMask need to be set for certain L3 events. + * For other events, the two fields do not affect the count. */ - if (l3_mask && is_llc_event(event)) { - int thread = 2 * (cpu_data(event->cpu).cpu_core_id % 4); - - if (smp_num_siblings > 1) - thread += cpu_data(event->cpu).apicid & 1; - - hwc->config |= (1ULL << (AMD64_L3_THREAD_SHIFT + thread) & - AMD64_L3_THREAD_MASK) | AMD64_L3_SLICE_MASK; - } + if (l3_mask && is_llc_event(event)) + hwc->config |= l3_thread_slice_mask(event->cpu); uncore = event_to_amd_uncore(event); if (!uncore) @@ -306,7 +321,7 @@ static struct pmu amd_nb_pmu = { .start = amd_uncore_start, .stop = amd_uncore_stop, .read = amd_uncore_read, - .capabilities = PERF_PMU_CAP_NO_EXCLUDE, + .capabilities = PERF_PMU_CAP_NO_EXCLUDE | PERF_PMU_CAP_NO_INTERRUPT, }; static struct pmu amd_llc_pmu = { @@ -317,7 +332,7 @@ static struct pmu amd_llc_pmu = { .start = amd_uncore_start, .stop = amd_uncore_stop, .read = amd_uncore_read, - .capabilities = PERF_PMU_CAP_NO_EXCLUDE, + .capabilities = PERF_PMU_CAP_NO_EXCLUDE | PERF_PMU_CAP_NO_INTERRUPT, }; static struct amd_uncore *amd_uncore_alloc(unsigned int cpu) @@ -523,9 +538,9 @@ static int __init amd_uncore_init(void) if (!boot_cpu_has(X86_FEATURE_TOPOEXT)) return -ENODEV; - if (boot_cpu_data.x86 == 0x17 || boot_cpu_data.x86 == 0x18) { + if (boot_cpu_data.x86 >= 0x17) { /* - * For F17h or F18h, the Northbridge counters are + * For F17h and above, the Northbridge counters are * repurposed as Data Fabric counters. Also, L3 * counters are supported too. The PMUs are exported * based on family as either L2 or L3 and NB or DF. diff --git a/arch/x86/events/core.c b/arch/x86/events/core.c index 3bb738f5a472..a619763e96e1 100644 --- a/arch/x86/events/core.c +++ b/arch/x86/events/core.c @@ -2490,7 +2490,7 @@ perf_callchain_user32(struct pt_regs *regs, struct perf_callchain_entry_ctx *ent /* 32-bit process in 64-bit kernel. */ unsigned long ss_base, cs_base; struct stack_frame_ia32 frame; - const void __user *fp; + const struct stack_frame_ia32 __user *fp; if (!test_thread_flag(TIF_IA32)) return 0; @@ -2501,18 +2501,12 @@ perf_callchain_user32(struct pt_regs *regs, struct perf_callchain_entry_ctx *ent fp = compat_ptr(ss_base + regs->bp); pagefault_disable(); while (entry->nr < entry->max_stack) { - unsigned long bytes; - frame.next_frame = 0; - frame.return_address = 0; - if (!valid_user_frame(fp, sizeof(frame))) break; - bytes = __copy_from_user_nmi(&frame.next_frame, fp, 4); - if (bytes != 0) + if (__get_user(frame.next_frame, &fp->next_frame)) break; - bytes = __copy_from_user_nmi(&frame.return_address, fp+4, 4); - if (bytes != 0) + if (__get_user(frame.return_address, &fp->return_address)) break; perf_callchain_store(entry, cs_base + frame.return_address); @@ -2533,7 +2527,7 @@ void perf_callchain_user(struct perf_callchain_entry_ctx *entry, struct pt_regs *regs) { struct stack_frame frame; - const unsigned long __user *fp; + const struct stack_frame __user *fp; if (perf_guest_cbs && perf_guest_cbs->is_in_guest()) { /* TODO: We don't support guest os callchain now */ @@ -2546,7 +2540,7 @@ perf_callchain_user(struct perf_callchain_entry_ctx *entry, struct pt_regs *regs if (regs->flags & (X86_VM_MASK | PERF_EFLAGS_VM)) return; - fp = (unsigned long __user *)regs->bp; + fp = (void __user *)regs->bp; perf_callchain_store(entry, regs->ip); @@ -2558,19 +2552,12 @@ perf_callchain_user(struct perf_callchain_entry_ctx *entry, struct pt_regs *regs pagefault_disable(); while (entry->nr < entry->max_stack) { - unsigned long bytes; - - frame.next_frame = NULL; - frame.return_address = 0; - if (!valid_user_frame(fp, sizeof(frame))) break; - bytes = __copy_from_user_nmi(&frame.next_frame, fp, sizeof(*fp)); - if (bytes != 0) + if (__get_user(frame.next_frame, &fp->next_frame)) break; - bytes = __copy_from_user_nmi(&frame.return_address, fp + 1, sizeof(*fp)); - if (bytes != 0) + if (__get_user(frame.return_address, &fp->return_address)) break; perf_callchain_store(entry, frame.return_address); diff --git a/arch/x86/events/intel/core.c b/arch/x86/events/intel/core.c index dff6623804c2..332954cccece 100644 --- a/arch/x86/events/intel/core.c +++ b/arch/x86/events/intel/core.c @@ -1945,6 +1945,14 @@ static __initconst const u64 knl_hw_cache_extra_regs * intel_bts events don't coexist with intel PMU's BTS events because of * x86_add_exclusive(x86_lbr_exclusive_lbr); there's no need to keep them * disabled around intel PMU's event batching etc, only inside the PMI handler. + * + * Avoid PEBS_ENABLE MSR access in PMIs. + * The GLOBAL_CTRL has been disabled. All the counters do not count anymore. + * It doesn't matter if the PEBS is enabled or not. + * Usually, the PEBS status are not changed in PMIs. It's unnecessary to + * access PEBS_ENABLE MSR in disable_all()/enable_all(). + * However, there are some cases which may change PEBS status, e.g. PMI + * throttle. The PEBS_ENABLE should be updated where the status changes. */ static void __intel_pmu_disable_all(void) { @@ -1954,13 +1962,12 @@ static void __intel_pmu_disable_all(void) if (test_bit(INTEL_PMC_IDX_FIXED_BTS, cpuc->active_mask)) intel_pmu_disable_bts(); - - intel_pmu_pebs_disable_all(); } static void intel_pmu_disable_all(void) { __intel_pmu_disable_all(); + intel_pmu_pebs_disable_all(); intel_pmu_lbr_disable_all(); } @@ -1968,7 +1975,6 @@ static void __intel_pmu_enable_all(int added, bool pmi) { struct cpu_hw_events *cpuc = this_cpu_ptr(&cpu_hw_events); - intel_pmu_pebs_enable_all(); intel_pmu_lbr_enable_all(pmi); wrmsrl(MSR_CORE_PERF_GLOBAL_CTRL, x86_pmu.intel_ctrl & ~cpuc->intel_ctrl_guest_mask); @@ -1986,6 +1992,7 @@ static void __intel_pmu_enable_all(int added, bool pmi) static void intel_pmu_enable_all(int added) { + intel_pmu_pebs_enable_all(); __intel_pmu_enable_all(added, false); } @@ -2374,9 +2381,21 @@ static int handle_pmi_common(struct pt_regs *regs, u64 status) * PEBS overflow sets bit 62 in the global status register */ if (__test_and_clear_bit(62, (unsigned long *)&status)) { + u64 pebs_enabled = cpuc->pebs_enabled; + handled++; x86_pmu.drain_pebs(regs); status &= x86_pmu.intel_ctrl | GLOBAL_STATUS_TRACE_TOPAPMI; + + /* + * PMI throttle may be triggered, which stops the PEBS event. + * Although cpuc->pebs_enabled is updated accordingly, the + * MSR_IA32_PEBS_ENABLE is not updated. Because the + * cpuc->enabled has been forced to 0 in PMI. + * Update the MSR if pebs_enabled is changed. + */ + if (pebs_enabled != cpuc->pebs_enabled) + wrmsrl(MSR_IA32_PEBS_ENABLE, cpuc->pebs_enabled); } /* diff --git a/arch/x86/events/intel/cstate.c b/arch/x86/events/intel/cstate.c index 4814c964692c..e4aa20c0426f 100644 --- a/arch/x86/events/intel/cstate.c +++ b/arch/x86/events/intel/cstate.c @@ -594,63 +594,60 @@ static const struct cstate_model glm_cstates __initconst = { }; -#define X86_CSTATES_MODEL(model, states) \ - { X86_VENDOR_INTEL, 6, model, X86_FEATURE_ANY, (unsigned long) &(states) } - static const struct x86_cpu_id intel_cstates_match[] __initconst = { - X86_CSTATES_MODEL(INTEL_FAM6_NEHALEM, nhm_cstates), - X86_CSTATES_MODEL(INTEL_FAM6_NEHALEM_EP, nhm_cstates), - X86_CSTATES_MODEL(INTEL_FAM6_NEHALEM_EX, nhm_cstates), + X86_MATCH_INTEL_FAM6_MODEL(NEHALEM, &nhm_cstates), + X86_MATCH_INTEL_FAM6_MODEL(NEHALEM_EP, &nhm_cstates), + X86_MATCH_INTEL_FAM6_MODEL(NEHALEM_EX, &nhm_cstates), - X86_CSTATES_MODEL(INTEL_FAM6_WESTMERE, nhm_cstates), - X86_CSTATES_MODEL(INTEL_FAM6_WESTMERE_EP, nhm_cstates), - X86_CSTATES_MODEL(INTEL_FAM6_WESTMERE_EX, nhm_cstates), + X86_MATCH_INTEL_FAM6_MODEL(WESTMERE, &nhm_cstates), + X86_MATCH_INTEL_FAM6_MODEL(WESTMERE_EP, &nhm_cstates), + X86_MATCH_INTEL_FAM6_MODEL(WESTMERE_EX, &nhm_cstates), - X86_CSTATES_MODEL(INTEL_FAM6_SANDYBRIDGE, snb_cstates), - X86_CSTATES_MODEL(INTEL_FAM6_SANDYBRIDGE_X, snb_cstates), + X86_MATCH_INTEL_FAM6_MODEL(SANDYBRIDGE, &snb_cstates), + X86_MATCH_INTEL_FAM6_MODEL(SANDYBRIDGE_X, &snb_cstates), - X86_CSTATES_MODEL(INTEL_FAM6_IVYBRIDGE, snb_cstates), - X86_CSTATES_MODEL(INTEL_FAM6_IVYBRIDGE_X, snb_cstates), + X86_MATCH_INTEL_FAM6_MODEL(IVYBRIDGE, &snb_cstates), + X86_MATCH_INTEL_FAM6_MODEL(IVYBRIDGE_X, &snb_cstates), - X86_CSTATES_MODEL(INTEL_FAM6_HASWELL, snb_cstates), - X86_CSTATES_MODEL(INTEL_FAM6_HASWELL_X, snb_cstates), - X86_CSTATES_MODEL(INTEL_FAM6_HASWELL_G, snb_cstates), + X86_MATCH_INTEL_FAM6_MODEL(HASWELL, &snb_cstates), + X86_MATCH_INTEL_FAM6_MODEL(HASWELL_X, &snb_cstates), + X86_MATCH_INTEL_FAM6_MODEL(HASWELL_G, &snb_cstates), - X86_CSTATES_MODEL(INTEL_FAM6_HASWELL_L, hswult_cstates), + X86_MATCH_INTEL_FAM6_MODEL(HASWELL_L, &hswult_cstates), - X86_CSTATES_MODEL(INTEL_FAM6_ATOM_SILVERMONT, slm_cstates), - X86_CSTATES_MODEL(INTEL_FAM6_ATOM_SILVERMONT_D, slm_cstates), - X86_CSTATES_MODEL(INTEL_FAM6_ATOM_AIRMONT, slm_cstates), + X86_MATCH_INTEL_FAM6_MODEL(ATOM_SILVERMONT, &slm_cstates), + X86_MATCH_INTEL_FAM6_MODEL(ATOM_SILVERMONT_D, &slm_cstates), + X86_MATCH_INTEL_FAM6_MODEL(ATOM_AIRMONT, &slm_cstates), - X86_CSTATES_MODEL(INTEL_FAM6_BROADWELL, snb_cstates), - X86_CSTATES_MODEL(INTEL_FAM6_BROADWELL_D, snb_cstates), - X86_CSTATES_MODEL(INTEL_FAM6_BROADWELL_G, snb_cstates), - X86_CSTATES_MODEL(INTEL_FAM6_BROADWELL_X, snb_cstates), + X86_MATCH_INTEL_FAM6_MODEL(BROADWELL, &snb_cstates), + X86_MATCH_INTEL_FAM6_MODEL(BROADWELL_D, &snb_cstates), + X86_MATCH_INTEL_FAM6_MODEL(BROADWELL_G, &snb_cstates), + X86_MATCH_INTEL_FAM6_MODEL(BROADWELL_X, &snb_cstates), - X86_CSTATES_MODEL(INTEL_FAM6_SKYLAKE_L, snb_cstates), - X86_CSTATES_MODEL(INTEL_FAM6_SKYLAKE, snb_cstates), - X86_CSTATES_MODEL(INTEL_FAM6_SKYLAKE_X, snb_cstates), + X86_MATCH_INTEL_FAM6_MODEL(SKYLAKE_L, &snb_cstates), + X86_MATCH_INTEL_FAM6_MODEL(SKYLAKE, &snb_cstates), + X86_MATCH_INTEL_FAM6_MODEL(SKYLAKE_X, &snb_cstates), - X86_CSTATES_MODEL(INTEL_FAM6_KABYLAKE_L, hswult_cstates), - X86_CSTATES_MODEL(INTEL_FAM6_KABYLAKE, hswult_cstates), - X86_CSTATES_MODEL(INTEL_FAM6_COMETLAKE_L, hswult_cstates), - X86_CSTATES_MODEL(INTEL_FAM6_COMETLAKE, hswult_cstates), + X86_MATCH_INTEL_FAM6_MODEL(KABYLAKE_L, &hswult_cstates), + X86_MATCH_INTEL_FAM6_MODEL(KABYLAKE, &hswult_cstates), + X86_MATCH_INTEL_FAM6_MODEL(COMETLAKE_L, &hswult_cstates), + X86_MATCH_INTEL_FAM6_MODEL(COMETLAKE, &hswult_cstates), - X86_CSTATES_MODEL(INTEL_FAM6_CANNONLAKE_L, cnl_cstates), + X86_MATCH_INTEL_FAM6_MODEL(CANNONLAKE_L, &cnl_cstates), - X86_CSTATES_MODEL(INTEL_FAM6_XEON_PHI_KNL, knl_cstates), - X86_CSTATES_MODEL(INTEL_FAM6_XEON_PHI_KNM, knl_cstates), + X86_MATCH_INTEL_FAM6_MODEL(XEON_PHI_KNL, &knl_cstates), + X86_MATCH_INTEL_FAM6_MODEL(XEON_PHI_KNM, &knl_cstates), - X86_CSTATES_MODEL(INTEL_FAM6_ATOM_GOLDMONT, glm_cstates), - X86_CSTATES_MODEL(INTEL_FAM6_ATOM_GOLDMONT_D, glm_cstates), - X86_CSTATES_MODEL(INTEL_FAM6_ATOM_GOLDMONT_PLUS, glm_cstates), - X86_CSTATES_MODEL(INTEL_FAM6_ATOM_TREMONT_D, glm_cstates), - X86_CSTATES_MODEL(INTEL_FAM6_ATOM_TREMONT, glm_cstates), + X86_MATCH_INTEL_FAM6_MODEL(ATOM_GOLDMONT, &glm_cstates), + X86_MATCH_INTEL_FAM6_MODEL(ATOM_GOLDMONT_D, &glm_cstates), + X86_MATCH_INTEL_FAM6_MODEL(ATOM_GOLDMONT_PLUS, &glm_cstates), + X86_MATCH_INTEL_FAM6_MODEL(ATOM_TREMONT_D, &glm_cstates), + X86_MATCH_INTEL_FAM6_MODEL(ATOM_TREMONT, &glm_cstates), - X86_CSTATES_MODEL(INTEL_FAM6_ICELAKE_L, icl_cstates), - X86_CSTATES_MODEL(INTEL_FAM6_ICELAKE, icl_cstates), - X86_CSTATES_MODEL(INTEL_FAM6_TIGERLAKE_L, icl_cstates), - X86_CSTATES_MODEL(INTEL_FAM6_TIGERLAKE, icl_cstates), + X86_MATCH_INTEL_FAM6_MODEL(ICELAKE_L, &icl_cstates), + X86_MATCH_INTEL_FAM6_MODEL(ICELAKE, &icl_cstates), + X86_MATCH_INTEL_FAM6_MODEL(TIGERLAKE_L, &icl_cstates), + X86_MATCH_INTEL_FAM6_MODEL(TIGERLAKE, &icl_cstates), { }, }; MODULE_DEVICE_TABLE(x86cpu, intel_cstates_match); diff --git a/arch/x86/events/intel/lbr.c b/arch/x86/events/intel/lbr.c index 534c76606049..65113b16804a 100644 --- a/arch/x86/events/intel/lbr.c +++ b/arch/x86/events/intel/lbr.c @@ -585,6 +585,7 @@ static void intel_pmu_lbr_read_32(struct cpu_hw_events *cpuc) cpuc->lbr_entries[i].reserved = 0; } cpuc->lbr_stack.nr = i; + cpuc->lbr_stack.hw_idx = tos; } /* @@ -680,6 +681,7 @@ static void intel_pmu_lbr_read_64(struct cpu_hw_events *cpuc) out++; } cpuc->lbr_stack.nr = out; + cpuc->lbr_stack.hw_idx = tos; } void intel_pmu_lbr_read(void) @@ -1120,6 +1122,13 @@ void intel_pmu_store_pebs_lbrs(struct pebs_lbr *lbr) int i; cpuc->lbr_stack.nr = x86_pmu.lbr_nr; + + /* Cannot get TOS for large PEBS */ + if (cpuc->n_pebs == cpuc->n_large_pebs) + cpuc->lbr_stack.hw_idx = -1ULL; + else + cpuc->lbr_stack.hw_idx = intel_pmu_lbr_tos(); + for (i = 0; i < x86_pmu.lbr_nr; i++) { u64 info = lbr->lbr[i].info; struct perf_branch_entry *e = &cpuc->lbr_entries[i]; diff --git a/arch/x86/events/intel/rapl.c b/arch/x86/events/intel/rapl.c index 09913121e726..a5dbd25852cb 100644 --- a/arch/x86/events/intel/rapl.c +++ b/arch/x86/events/intel/rapl.c @@ -668,9 +668,6 @@ static int __init init_rapl_pmus(void) return 0; } -#define X86_RAPL_MODEL_MATCH(model, init) \ - { X86_VENDOR_INTEL, 6, model, X86_FEATURE_ANY, (unsigned long)&init } - static struct rapl_model model_snb = { .events = BIT(PERF_RAPL_PP0) | BIT(PERF_RAPL_PKG) | @@ -716,36 +713,35 @@ static struct rapl_model model_skl = { }; static const struct x86_cpu_id rapl_model_match[] __initconst = { - X86_RAPL_MODEL_MATCH(INTEL_FAM6_SANDYBRIDGE, model_snb), - X86_RAPL_MODEL_MATCH(INTEL_FAM6_SANDYBRIDGE_X, model_snbep), - X86_RAPL_MODEL_MATCH(INTEL_FAM6_IVYBRIDGE, model_snb), - X86_RAPL_MODEL_MATCH(INTEL_FAM6_IVYBRIDGE_X, model_snbep), - X86_RAPL_MODEL_MATCH(INTEL_FAM6_HASWELL, model_hsw), - X86_RAPL_MODEL_MATCH(INTEL_FAM6_HASWELL_X, model_hsx), - X86_RAPL_MODEL_MATCH(INTEL_FAM6_HASWELL_L, model_hsw), - X86_RAPL_MODEL_MATCH(INTEL_FAM6_HASWELL_G, model_hsw), - X86_RAPL_MODEL_MATCH(INTEL_FAM6_BROADWELL, model_hsw), - X86_RAPL_MODEL_MATCH(INTEL_FAM6_BROADWELL_G, model_hsw), - X86_RAPL_MODEL_MATCH(INTEL_FAM6_BROADWELL_X, model_hsx), - X86_RAPL_MODEL_MATCH(INTEL_FAM6_BROADWELL_D, model_hsx), - X86_RAPL_MODEL_MATCH(INTEL_FAM6_XEON_PHI_KNL, model_knl), - X86_RAPL_MODEL_MATCH(INTEL_FAM6_XEON_PHI_KNM, model_knl), - X86_RAPL_MODEL_MATCH(INTEL_FAM6_SKYLAKE_L, model_skl), - X86_RAPL_MODEL_MATCH(INTEL_FAM6_SKYLAKE, model_skl), - X86_RAPL_MODEL_MATCH(INTEL_FAM6_SKYLAKE_X, model_hsx), - X86_RAPL_MODEL_MATCH(INTEL_FAM6_KABYLAKE_L, model_skl), - X86_RAPL_MODEL_MATCH(INTEL_FAM6_KABYLAKE, model_skl), - X86_RAPL_MODEL_MATCH(INTEL_FAM6_CANNONLAKE_L, model_skl), - X86_RAPL_MODEL_MATCH(INTEL_FAM6_ATOM_GOLDMONT, model_hsw), - X86_RAPL_MODEL_MATCH(INTEL_FAM6_ATOM_GOLDMONT_D, model_hsw), - X86_RAPL_MODEL_MATCH(INTEL_FAM6_ATOM_GOLDMONT_PLUS, model_hsw), - X86_RAPL_MODEL_MATCH(INTEL_FAM6_ICELAKE_L, model_skl), - X86_RAPL_MODEL_MATCH(INTEL_FAM6_ICELAKE, model_skl), - X86_RAPL_MODEL_MATCH(INTEL_FAM6_COMETLAKE_L, model_skl), - X86_RAPL_MODEL_MATCH(INTEL_FAM6_COMETLAKE, model_skl), + X86_MATCH_INTEL_FAM6_MODEL(SANDYBRIDGE, &model_snb), + X86_MATCH_INTEL_FAM6_MODEL(SANDYBRIDGE_X, &model_snbep), + X86_MATCH_INTEL_FAM6_MODEL(IVYBRIDGE, &model_snb), + X86_MATCH_INTEL_FAM6_MODEL(IVYBRIDGE_X, &model_snbep), + X86_MATCH_INTEL_FAM6_MODEL(HASWELL, &model_hsw), + X86_MATCH_INTEL_FAM6_MODEL(HASWELL_X, &model_hsx), + X86_MATCH_INTEL_FAM6_MODEL(HASWELL_L, &model_hsw), + X86_MATCH_INTEL_FAM6_MODEL(HASWELL_G, &model_hsw), + X86_MATCH_INTEL_FAM6_MODEL(BROADWELL, &model_hsw), + X86_MATCH_INTEL_FAM6_MODEL(BROADWELL_G, &model_hsw), + X86_MATCH_INTEL_FAM6_MODEL(BROADWELL_X, &model_hsx), + X86_MATCH_INTEL_FAM6_MODEL(BROADWELL_D, &model_hsx), + X86_MATCH_INTEL_FAM6_MODEL(XEON_PHI_KNL, &model_knl), + X86_MATCH_INTEL_FAM6_MODEL(XEON_PHI_KNM, &model_knl), + X86_MATCH_INTEL_FAM6_MODEL(SKYLAKE_L, &model_skl), + X86_MATCH_INTEL_FAM6_MODEL(SKYLAKE, &model_skl), + X86_MATCH_INTEL_FAM6_MODEL(SKYLAKE_X, &model_hsx), + X86_MATCH_INTEL_FAM6_MODEL(KABYLAKE_L, &model_skl), + X86_MATCH_INTEL_FAM6_MODEL(KABYLAKE, &model_skl), + X86_MATCH_INTEL_FAM6_MODEL(CANNONLAKE_L, &model_skl), + X86_MATCH_INTEL_FAM6_MODEL(ATOM_GOLDMONT, &model_hsw), + X86_MATCH_INTEL_FAM6_MODEL(ATOM_GOLDMONT_D, &model_hsw), + X86_MATCH_INTEL_FAM6_MODEL(ATOM_GOLDMONT_PLUS, &model_hsw), + X86_MATCH_INTEL_FAM6_MODEL(ICELAKE_L, &model_skl), + X86_MATCH_INTEL_FAM6_MODEL(ICELAKE, &model_skl), + X86_MATCH_INTEL_FAM6_MODEL(COMETLAKE_L, &model_skl), + X86_MATCH_INTEL_FAM6_MODEL(COMETLAKE, &model_skl), {}, }; - MODULE_DEVICE_TABLE(x86cpu, rapl_model_match); static int __init rapl_pmu_init(void) diff --git a/arch/x86/events/intel/uncore.c b/arch/x86/events/intel/uncore.c index 86467f85c383..1ba72c563313 100644 --- a/arch/x86/events/intel/uncore.c +++ b/arch/x86/events/intel/uncore.c @@ -1392,10 +1392,6 @@ err: return ret; } - -#define X86_UNCORE_MODEL_MATCH(model, init) \ - { X86_VENDOR_INTEL, 6, model, X86_FEATURE_ANY, (unsigned long)&init } - struct intel_uncore_init_fun { void (*cpu_init)(void); int (*pci_init)(void); @@ -1470,6 +1466,16 @@ static const struct intel_uncore_init_fun icl_uncore_init __initconst = { .pci_init = skl_uncore_pci_init, }; +static const struct intel_uncore_init_fun tgl_uncore_init __initconst = { + .cpu_init = icl_uncore_cpu_init, + .mmio_init = tgl_uncore_mmio_init, +}; + +static const struct intel_uncore_init_fun tgl_l_uncore_init __initconst = { + .cpu_init = icl_uncore_cpu_init, + .mmio_init = tgl_l_uncore_mmio_init, +}; + static const struct intel_uncore_init_fun snr_uncore_init __initconst = { .cpu_init = snr_uncore_cpu_init, .pci_init = snr_uncore_pci_init, @@ -1477,38 +1483,39 @@ static const struct intel_uncore_init_fun snr_uncore_init __initconst = { }; static const struct x86_cpu_id intel_uncore_match[] __initconst = { - X86_UNCORE_MODEL_MATCH(INTEL_FAM6_NEHALEM_EP, nhm_uncore_init), - X86_UNCORE_MODEL_MATCH(INTEL_FAM6_NEHALEM, nhm_uncore_init), - X86_UNCORE_MODEL_MATCH(INTEL_FAM6_WESTMERE, nhm_uncore_init), - X86_UNCORE_MODEL_MATCH(INTEL_FAM6_WESTMERE_EP, nhm_uncore_init), - X86_UNCORE_MODEL_MATCH(INTEL_FAM6_SANDYBRIDGE, snb_uncore_init), - X86_UNCORE_MODEL_MATCH(INTEL_FAM6_IVYBRIDGE, ivb_uncore_init), - X86_UNCORE_MODEL_MATCH(INTEL_FAM6_HASWELL, hsw_uncore_init), - X86_UNCORE_MODEL_MATCH(INTEL_FAM6_HASWELL_L, hsw_uncore_init), - X86_UNCORE_MODEL_MATCH(INTEL_FAM6_HASWELL_G, hsw_uncore_init), - X86_UNCORE_MODEL_MATCH(INTEL_FAM6_BROADWELL, bdw_uncore_init), - X86_UNCORE_MODEL_MATCH(INTEL_FAM6_BROADWELL_G, bdw_uncore_init), - X86_UNCORE_MODEL_MATCH(INTEL_FAM6_SANDYBRIDGE_X, snbep_uncore_init), - X86_UNCORE_MODEL_MATCH(INTEL_FAM6_NEHALEM_EX, nhmex_uncore_init), - X86_UNCORE_MODEL_MATCH(INTEL_FAM6_WESTMERE_EX, nhmex_uncore_init), - X86_UNCORE_MODEL_MATCH(INTEL_FAM6_IVYBRIDGE_X, ivbep_uncore_init), - X86_UNCORE_MODEL_MATCH(INTEL_FAM6_HASWELL_X, hswep_uncore_init), - X86_UNCORE_MODEL_MATCH(INTEL_FAM6_BROADWELL_X, bdx_uncore_init), - X86_UNCORE_MODEL_MATCH(INTEL_FAM6_BROADWELL_D, bdx_uncore_init), - X86_UNCORE_MODEL_MATCH(INTEL_FAM6_XEON_PHI_KNL, knl_uncore_init), - X86_UNCORE_MODEL_MATCH(INTEL_FAM6_XEON_PHI_KNM, knl_uncore_init), - X86_UNCORE_MODEL_MATCH(INTEL_FAM6_SKYLAKE, skl_uncore_init), - X86_UNCORE_MODEL_MATCH(INTEL_FAM6_SKYLAKE_L, skl_uncore_init), - X86_UNCORE_MODEL_MATCH(INTEL_FAM6_SKYLAKE_X, skx_uncore_init), - X86_UNCORE_MODEL_MATCH(INTEL_FAM6_KABYLAKE_L, skl_uncore_init), - X86_UNCORE_MODEL_MATCH(INTEL_FAM6_KABYLAKE, skl_uncore_init), - X86_UNCORE_MODEL_MATCH(INTEL_FAM6_ICELAKE_L, icl_uncore_init), - X86_UNCORE_MODEL_MATCH(INTEL_FAM6_ICELAKE_NNPI, icl_uncore_init), - X86_UNCORE_MODEL_MATCH(INTEL_FAM6_ICELAKE, icl_uncore_init), - X86_UNCORE_MODEL_MATCH(INTEL_FAM6_ATOM_TREMONT_D, snr_uncore_init), + X86_MATCH_INTEL_FAM6_MODEL(NEHALEM_EP, &nhm_uncore_init), + X86_MATCH_INTEL_FAM6_MODEL(NEHALEM, &nhm_uncore_init), + X86_MATCH_INTEL_FAM6_MODEL(WESTMERE, &nhm_uncore_init), + X86_MATCH_INTEL_FAM6_MODEL(WESTMERE_EP, &nhm_uncore_init), + X86_MATCH_INTEL_FAM6_MODEL(SANDYBRIDGE, &snb_uncore_init), + X86_MATCH_INTEL_FAM6_MODEL(IVYBRIDGE, &ivb_uncore_init), + X86_MATCH_INTEL_FAM6_MODEL(HASWELL, &hsw_uncore_init), + X86_MATCH_INTEL_FAM6_MODEL(HASWELL_L, &hsw_uncore_init), + X86_MATCH_INTEL_FAM6_MODEL(HASWELL_G, &hsw_uncore_init), + X86_MATCH_INTEL_FAM6_MODEL(BROADWELL, &bdw_uncore_init), + X86_MATCH_INTEL_FAM6_MODEL(BROADWELL_G, &bdw_uncore_init), + X86_MATCH_INTEL_FAM6_MODEL(SANDYBRIDGE_X, &snbep_uncore_init), + X86_MATCH_INTEL_FAM6_MODEL(NEHALEM_EX, &nhmex_uncore_init), + X86_MATCH_INTEL_FAM6_MODEL(WESTMERE_EX, &nhmex_uncore_init), + X86_MATCH_INTEL_FAM6_MODEL(IVYBRIDGE_X, &ivbep_uncore_init), + X86_MATCH_INTEL_FAM6_MODEL(HASWELL_X, &hswep_uncore_init), + X86_MATCH_INTEL_FAM6_MODEL(BROADWELL_X, &bdx_uncore_init), + X86_MATCH_INTEL_FAM6_MODEL(BROADWELL_D, &bdx_uncore_init), + X86_MATCH_INTEL_FAM6_MODEL(XEON_PHI_KNL, &knl_uncore_init), + X86_MATCH_INTEL_FAM6_MODEL(XEON_PHI_KNM, &knl_uncore_init), + X86_MATCH_INTEL_FAM6_MODEL(SKYLAKE, &skl_uncore_init), + X86_MATCH_INTEL_FAM6_MODEL(SKYLAKE_L, &skl_uncore_init), + X86_MATCH_INTEL_FAM6_MODEL(SKYLAKE_X, &skx_uncore_init), + X86_MATCH_INTEL_FAM6_MODEL(KABYLAKE_L, &skl_uncore_init), + X86_MATCH_INTEL_FAM6_MODEL(KABYLAKE, &skl_uncore_init), + X86_MATCH_INTEL_FAM6_MODEL(ICELAKE_L, &icl_uncore_init), + X86_MATCH_INTEL_FAM6_MODEL(ICELAKE_NNPI, &icl_uncore_init), + X86_MATCH_INTEL_FAM6_MODEL(ICELAKE, &icl_uncore_init), + X86_MATCH_INTEL_FAM6_MODEL(TIGERLAKE_L, &tgl_l_uncore_init), + X86_MATCH_INTEL_FAM6_MODEL(TIGERLAKE, &tgl_uncore_init), + X86_MATCH_INTEL_FAM6_MODEL(ATOM_TREMONT_D, &snr_uncore_init), {}, }; - MODULE_DEVICE_TABLE(x86cpu, intel_uncore_match); static int __init intel_uncore_init(void) diff --git a/arch/x86/events/intel/uncore.h b/arch/x86/events/intel/uncore.h index bbfdaa720b45..b30429f8a53a 100644 --- a/arch/x86/events/intel/uncore.h +++ b/arch/x86/events/intel/uncore.h @@ -154,6 +154,7 @@ struct freerunning_counters { unsigned int box_offset; unsigned int num_counters; unsigned int bits; + unsigned *box_offsets; }; struct pci2phy_map { @@ -310,7 +311,9 @@ unsigned int uncore_freerunning_counter(struct intel_uncore_box *box, return pmu->type->freerunning[type].counter_base + pmu->type->freerunning[type].counter_offset * idx + - pmu->type->freerunning[type].box_offset * pmu->pmu_idx; + (pmu->type->freerunning[type].box_offsets ? + pmu->type->freerunning[type].box_offsets[pmu->pmu_idx] : + pmu->type->freerunning[type].box_offset * pmu->pmu_idx); } static inline @@ -527,6 +530,8 @@ void snb_uncore_cpu_init(void); void nhm_uncore_cpu_init(void); void skl_uncore_cpu_init(void); void icl_uncore_cpu_init(void); +void tgl_uncore_mmio_init(void); +void tgl_l_uncore_mmio_init(void); int snb_pci2phy_map_init(int devid); /* uncore_snbep.c */ diff --git a/arch/x86/events/intel/uncore_snb.c b/arch/x86/events/intel/uncore_snb.c index c37cb12d0ef6..3de1065eefc4 100644 --- a/arch/x86/events/intel/uncore_snb.c +++ b/arch/x86/events/intel/uncore_snb.c @@ -44,6 +44,11 @@ #define PCI_DEVICE_ID_INTEL_WHL_UD_IMC 0x3e35 #define PCI_DEVICE_ID_INTEL_ICL_U_IMC 0x8a02 #define PCI_DEVICE_ID_INTEL_ICL_U2_IMC 0x8a12 +#define PCI_DEVICE_ID_INTEL_TGL_U1_IMC 0x9a02 +#define PCI_DEVICE_ID_INTEL_TGL_U2_IMC 0x9a04 +#define PCI_DEVICE_ID_INTEL_TGL_U3_IMC 0x9a12 +#define PCI_DEVICE_ID_INTEL_TGL_U4_IMC 0x9a14 +#define PCI_DEVICE_ID_INTEL_TGL_H_IMC 0x9a36 /* SNB event control */ @@ -1002,3 +1007,157 @@ void nhm_uncore_cpu_init(void) } /* end of Nehalem uncore support */ + +/* Tiger Lake MMIO uncore support */ + +static const struct pci_device_id tgl_uncore_pci_ids[] = { + { /* IMC */ + PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_TGL_U1_IMC), + .driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0), + }, + { /* IMC */ + PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_TGL_U2_IMC), + .driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0), + }, + { /* IMC */ + PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_TGL_U3_IMC), + .driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0), + }, + { /* IMC */ + PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_TGL_U4_IMC), + .driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0), + }, + { /* IMC */ + PCI_DEVICE(PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_TGL_H_IMC), + .driver_data = UNCORE_PCI_DEV_DATA(SNB_PCI_UNCORE_IMC, 0), + }, + { /* end: all zeroes */ } +}; + +enum perf_tgl_uncore_imc_freerunning_types { + TGL_MMIO_UNCORE_IMC_DATA_TOTAL, + TGL_MMIO_UNCORE_IMC_DATA_READ, + TGL_MMIO_UNCORE_IMC_DATA_WRITE, + TGL_MMIO_UNCORE_IMC_FREERUNNING_TYPE_MAX +}; + +static struct freerunning_counters tgl_l_uncore_imc_freerunning[] = { + [TGL_MMIO_UNCORE_IMC_DATA_TOTAL] = { 0x5040, 0x0, 0x0, 1, 64 }, + [TGL_MMIO_UNCORE_IMC_DATA_READ] = { 0x5058, 0x0, 0x0, 1, 64 }, + [TGL_MMIO_UNCORE_IMC_DATA_WRITE] = { 0x50A0, 0x0, 0x0, 1, 64 }, +}; + +static struct freerunning_counters tgl_uncore_imc_freerunning[] = { + [TGL_MMIO_UNCORE_IMC_DATA_TOTAL] = { 0xd840, 0x0, 0x0, 1, 64 }, + [TGL_MMIO_UNCORE_IMC_DATA_READ] = { 0xd858, 0x0, 0x0, 1, 64 }, + [TGL_MMIO_UNCORE_IMC_DATA_WRITE] = { 0xd8A0, 0x0, 0x0, 1, 64 }, +}; + +static struct uncore_event_desc tgl_uncore_imc_events[] = { + INTEL_UNCORE_EVENT_DESC(data_total, "event=0xff,umask=0x10"), + INTEL_UNCORE_EVENT_DESC(data_total.scale, "6.103515625e-5"), + INTEL_UNCORE_EVENT_DESC(data_total.unit, "MiB"), + + INTEL_UNCORE_EVENT_DESC(data_read, "event=0xff,umask=0x20"), + INTEL_UNCORE_EVENT_DESC(data_read.scale, "6.103515625e-5"), + INTEL_UNCORE_EVENT_DESC(data_read.unit, "MiB"), + + INTEL_UNCORE_EVENT_DESC(data_write, "event=0xff,umask=0x30"), + INTEL_UNCORE_EVENT_DESC(data_write.scale, "6.103515625e-5"), + INTEL_UNCORE_EVENT_DESC(data_write.unit, "MiB"), + + { /* end: all zeroes */ } +}; + +static struct pci_dev *tgl_uncore_get_mc_dev(void) +{ + const struct pci_device_id *ids = tgl_uncore_pci_ids; + struct pci_dev *mc_dev = NULL; + + while (ids && ids->vendor) { + mc_dev = pci_get_device(PCI_VENDOR_ID_INTEL, ids->device, NULL); + if (mc_dev) + return mc_dev; + ids++; + } + + return mc_dev; +} + +#define TGL_UNCORE_MMIO_IMC_MEM_OFFSET 0x10000 + +static void tgl_uncore_imc_freerunning_init_box(struct intel_uncore_box *box) +{ + struct pci_dev *pdev = tgl_uncore_get_mc_dev(); + struct intel_uncore_pmu *pmu = box->pmu; + resource_size_t addr; + u32 mch_bar; + + if (!pdev) { + pr_warn("perf uncore: Cannot find matched IMC device.\n"); + return; + } + + pci_read_config_dword(pdev, SNB_UNCORE_PCI_IMC_BAR_OFFSET, &mch_bar); + /* MCHBAR is disabled */ + if (!(mch_bar & BIT(0))) { + pr_warn("perf uncore: MCHBAR is disabled. Failed to map IMC free-running counters.\n"); + return; + } + mch_bar &= ~BIT(0); + addr = (resource_size_t)(mch_bar + TGL_UNCORE_MMIO_IMC_MEM_OFFSET * pmu->pmu_idx); + +#ifdef CONFIG_PHYS_ADDR_T_64BIT + pci_read_config_dword(pdev, SNB_UNCORE_PCI_IMC_BAR_OFFSET + 4, &mch_bar); + addr |= ((resource_size_t)mch_bar << 32); +#endif + + box->io_addr = ioremap(addr, SNB_UNCORE_PCI_IMC_MAP_SIZE); +} + +static struct intel_uncore_ops tgl_uncore_imc_freerunning_ops = { + .init_box = tgl_uncore_imc_freerunning_init_box, + .exit_box = uncore_mmio_exit_box, + .read_counter = uncore_mmio_read_counter, + .hw_config = uncore_freerunning_hw_config, +}; + +static struct attribute *tgl_uncore_imc_formats_attr[] = { + &format_attr_event.attr, + &format_attr_umask.attr, + NULL +}; + +static const struct attribute_group tgl_uncore_imc_format_group = { + .name = "format", + .attrs = tgl_uncore_imc_formats_attr, +}; + +static struct intel_uncore_type tgl_uncore_imc_free_running = { + .name = "imc_free_running", + .num_counters = 3, + .num_boxes = 2, + .num_freerunning_types = TGL_MMIO_UNCORE_IMC_FREERUNNING_TYPE_MAX, + .freerunning = tgl_uncore_imc_freerunning, + .ops = &tgl_uncore_imc_freerunning_ops, + .event_descs = tgl_uncore_imc_events, + .format_group = &tgl_uncore_imc_format_group, +}; + +static struct intel_uncore_type *tgl_mmio_uncores[] = { + &tgl_uncore_imc_free_running, + NULL +}; + +void tgl_l_uncore_mmio_init(void) +{ + tgl_uncore_imc_free_running.freerunning = tgl_l_uncore_imc_freerunning; + uncore_mmio_uncores = tgl_mmio_uncores; +} + +void tgl_uncore_mmio_init(void) +{ + uncore_mmio_uncores = tgl_mmio_uncores; +} + +/* end of Tiger Lake MMIO uncore support */ diff --git a/arch/x86/events/intel/uncore_snbep.c b/arch/x86/events/intel/uncore_snbep.c index ad20220af303..01023f0d935b 100644 --- a/arch/x86/events/intel/uncore_snbep.c +++ b/arch/x86/events/intel/uncore_snbep.c @@ -4380,10 +4380,10 @@ static struct pci_dev *snr_uncore_get_mc_dev(int id) return mc_dev; } -static void snr_uncore_mmio_init_box(struct intel_uncore_box *box) +static void __snr_uncore_mmio_init_box(struct intel_uncore_box *box, + unsigned int box_ctl, int mem_offset) { struct pci_dev *pdev = snr_uncore_get_mc_dev(box->dieid); - unsigned int box_ctl = uncore_mmio_box_ctl(box); resource_size_t addr; u32 pci_dword; @@ -4393,7 +4393,7 @@ static void snr_uncore_mmio_init_box(struct intel_uncore_box *box) pci_read_config_dword(pdev, SNR_IMC_MMIO_BASE_OFFSET, &pci_dword); addr = (pci_dword & SNR_IMC_MMIO_BASE_MASK) << 23; - pci_read_config_dword(pdev, SNR_IMC_MMIO_MEM0_OFFSET, &pci_dword); + pci_read_config_dword(pdev, mem_offset, &pci_dword); addr |= (pci_dword & SNR_IMC_MMIO_MEM0_MASK) << 12; addr += box_ctl; @@ -4405,6 +4405,12 @@ static void snr_uncore_mmio_init_box(struct intel_uncore_box *box) writel(IVBEP_PMON_BOX_CTL_INT, box->io_addr); } +static void snr_uncore_mmio_init_box(struct intel_uncore_box *box) +{ + __snr_uncore_mmio_init_box(box, uncore_mmio_box_ctl(box), + SNR_IMC_MMIO_MEM0_OFFSET); +} + static void snr_uncore_mmio_disable_box(struct intel_uncore_box *box) { u32 config; diff --git a/arch/x86/ia32/Makefile b/arch/x86/ia32/Makefile index d13b352b2aa7..8e4d0391ff6c 100644 --- a/arch/x86/ia32/Makefile +++ b/arch/x86/ia32/Makefile @@ -3,7 +3,7 @@ # Makefile for the ia32 kernel emulation subsystem. # -obj-$(CONFIG_IA32_EMULATION) := sys_ia32.o ia32_signal.o +obj-$(CONFIG_IA32_EMULATION) := ia32_signal.o obj-$(CONFIG_IA32_AOUT) += ia32_aout.o diff --git a/arch/x86/ia32/ia32_signal.c b/arch/x86/ia32/ia32_signal.c index a3aefe9b9401..f9d8804144d0 100644 --- a/arch/x86/ia32/ia32_signal.c +++ b/arch/x86/ia32/ia32_signal.c @@ -36,70 +36,56 @@ #include <asm/sighandling.h> #include <asm/smap.h> +static inline void reload_segments(struct sigcontext_32 *sc) +{ + unsigned int cur; + + savesegment(gs, cur); + if ((sc->gs | 0x03) != cur) + load_gs_index(sc->gs | 0x03); + savesegment(fs, cur); + if ((sc->fs | 0x03) != cur) + loadsegment(fs, sc->fs | 0x03); + savesegment(ds, cur); + if ((sc->ds | 0x03) != cur) + loadsegment(ds, sc->ds | 0x03); + savesegment(es, cur); + if ((sc->es | 0x03) != cur) + loadsegment(es, sc->es | 0x03); +} + /* * Do a signal return; undo the signal stack. */ -#define loadsegment_gs(v) load_gs_index(v) -#define loadsegment_fs(v) loadsegment(fs, v) -#define loadsegment_ds(v) loadsegment(ds, v) -#define loadsegment_es(v) loadsegment(es, v) - -#define get_user_seg(seg) ({ unsigned int v; savesegment(seg, v); v; }) -#define set_user_seg(seg, v) loadsegment_##seg(v) - -#define COPY(x) { \ - get_user_ex(regs->x, &sc->x); \ -} - -#define GET_SEG(seg) ({ \ - unsigned short tmp; \ - get_user_ex(tmp, &sc->seg); \ - tmp; \ -}) - -#define COPY_SEG_CPL3(seg) do { \ - regs->seg = GET_SEG(seg) | 3; \ -} while (0) - -#define RELOAD_SEG(seg) { \ - unsigned int pre = (seg) | 3; \ - unsigned int cur = get_user_seg(seg); \ - if (pre != cur) \ - set_user_seg(seg, pre); \ -} - static int ia32_restore_sigcontext(struct pt_regs *regs, - struct sigcontext_32 __user *sc) + struct sigcontext_32 __user *usc) { - unsigned int tmpflags, err = 0; - u16 gs, fs, es, ds; - void __user *buf; - u32 tmp; + struct sigcontext_32 sc; /* Always make any pending restarted system calls return -EINTR */ current->restart_block.fn = do_no_restart_syscall; - get_user_try { - gs = GET_SEG(gs); - fs = GET_SEG(fs); - ds = GET_SEG(ds); - es = GET_SEG(es); - - COPY(di); COPY(si); COPY(bp); COPY(sp); COPY(bx); - COPY(dx); COPY(cx); COPY(ip); COPY(ax); - /* Don't touch extended registers */ - - COPY_SEG_CPL3(cs); - COPY_SEG_CPL3(ss); - - get_user_ex(tmpflags, &sc->flags); - regs->flags = (regs->flags & ~FIX_EFLAGS) | (tmpflags & FIX_EFLAGS); - /* disable syscall checks */ - regs->orig_ax = -1; + if (unlikely(copy_from_user(&sc, usc, sizeof(sc)))) + return -EFAULT; - get_user_ex(tmp, &sc->fpstate); - buf = compat_ptr(tmp); - } get_user_catch(err); + /* Get only the ia32 registers. */ + regs->bx = sc.bx; + regs->cx = sc.cx; + regs->dx = sc.dx; + regs->si = sc.si; + regs->di = sc.di; + regs->bp = sc.bp; + regs->ax = sc.ax; + regs->sp = sc.sp; + regs->ip = sc.ip; + + /* Get CS/SS and force CPL3 */ + regs->cs = sc.cs | 0x03; + regs->ss = sc.ss | 0x03; + + regs->flags = (regs->flags & ~FIX_EFLAGS) | (sc.flags & FIX_EFLAGS); + /* disable syscall checks */ + regs->orig_ax = -1; /* * Reload fs and gs if they have changed in the signal @@ -107,14 +93,8 @@ static int ia32_restore_sigcontext(struct pt_regs *regs, * the handler, but does not clobber them at least in the * normal case. */ - RELOAD_SEG(gs); - RELOAD_SEG(fs); - RELOAD_SEG(ds); - RELOAD_SEG(es); - - err |= fpu__restore_sig(buf, 1); - - return err; + reload_segments(&sc); + return fpu__restore_sig(compat_ptr(sc.fpstate), 1); } COMPAT_SYSCALL_DEFINE0(sigreturn) @@ -126,10 +106,7 @@ COMPAT_SYSCALL_DEFINE0(sigreturn) if (!access_ok(frame, sizeof(*frame))) goto badframe; if (__get_user(set.sig[0], &frame->sc.oldmask) - || (_COMPAT_NSIG_WORDS > 1 - && __copy_from_user((((char *) &set.sig) + 4), - &frame->extramask, - sizeof(frame->extramask)))) + || __get_user(((__u32 *)&set)[1], &frame->extramask[0])) goto badframe; set_current_blocked(&set); @@ -153,7 +130,7 @@ COMPAT_SYSCALL_DEFINE0(rt_sigreturn) if (!access_ok(frame, sizeof(*frame))) goto badframe; - if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set))) + if (__get_user(set.sig[0], (__u64 __user *)&frame->uc.uc_sigmask)) goto badframe; set_current_blocked(&set); @@ -175,44 +152,51 @@ badframe: * Set up a signal frame. */ -static int ia32_setup_sigcontext(struct sigcontext_32 __user *sc, - void __user *fpstate, - struct pt_regs *regs, unsigned int mask) +#define get_user_seg(seg) ({ unsigned int v; savesegment(seg, v); v; }) + +static __always_inline int +__unsafe_setup_sigcontext32(struct sigcontext_32 __user *sc, + void __user *fpstate, + struct pt_regs *regs, unsigned int mask) { - int err = 0; - - put_user_try { - put_user_ex(get_user_seg(gs), (unsigned int __user *)&sc->gs); - put_user_ex(get_user_seg(fs), (unsigned int __user *)&sc->fs); - put_user_ex(get_user_seg(ds), (unsigned int __user *)&sc->ds); - put_user_ex(get_user_seg(es), (unsigned int __user *)&sc->es); - - put_user_ex(regs->di, &sc->di); - put_user_ex(regs->si, &sc->si); - put_user_ex(regs->bp, &sc->bp); - put_user_ex(regs->sp, &sc->sp); - put_user_ex(regs->bx, &sc->bx); - put_user_ex(regs->dx, &sc->dx); - put_user_ex(regs->cx, &sc->cx); - put_user_ex(regs->ax, &sc->ax); - put_user_ex(current->thread.trap_nr, &sc->trapno); - put_user_ex(current->thread.error_code, &sc->err); - put_user_ex(regs->ip, &sc->ip); - put_user_ex(regs->cs, (unsigned int __user *)&sc->cs); - put_user_ex(regs->flags, &sc->flags); - put_user_ex(regs->sp, &sc->sp_at_signal); - put_user_ex(regs->ss, (unsigned int __user *)&sc->ss); - - put_user_ex(ptr_to_compat(fpstate), &sc->fpstate); - - /* non-iBCS2 extensions.. */ - put_user_ex(mask, &sc->oldmask); - put_user_ex(current->thread.cr2, &sc->cr2); - } put_user_catch(err); - - return err; + unsafe_put_user(get_user_seg(gs), (unsigned int __user *)&sc->gs, Efault); + unsafe_put_user(get_user_seg(fs), (unsigned int __user *)&sc->fs, Efault); + unsafe_put_user(get_user_seg(ds), (unsigned int __user *)&sc->ds, Efault); + unsafe_put_user(get_user_seg(es), (unsigned int __user *)&sc->es, Efault); + + unsafe_put_user(regs->di, &sc->di, Efault); + unsafe_put_user(regs->si, &sc->si, Efault); + unsafe_put_user(regs->bp, &sc->bp, Efault); + unsafe_put_user(regs->sp, &sc->sp, Efault); + unsafe_put_user(regs->bx, &sc->bx, Efault); + unsafe_put_user(regs->dx, &sc->dx, Efault); + unsafe_put_user(regs->cx, &sc->cx, Efault); + unsafe_put_user(regs->ax, &sc->ax, Efault); + unsafe_put_user(current->thread.trap_nr, &sc->trapno, Efault); + unsafe_put_user(current->thread.error_code, &sc->err, Efault); + unsafe_put_user(regs->ip, &sc->ip, Efault); + unsafe_put_user(regs->cs, (unsigned int __user *)&sc->cs, Efault); + unsafe_put_user(regs->flags, &sc->flags, Efault); + unsafe_put_user(regs->sp, &sc->sp_at_signal, Efault); + unsafe_put_user(regs->ss, (unsigned int __user *)&sc->ss, Efault); + + unsafe_put_user(ptr_to_compat(fpstate), &sc->fpstate, Efault); + + /* non-iBCS2 extensions.. */ + unsafe_put_user(mask, &sc->oldmask, Efault); + unsafe_put_user(current->thread.cr2, &sc->cr2, Efault); + return 0; + +Efault: + return -EFAULT; } +#define unsafe_put_sigcontext32(sc, fp, regs, set, label) \ +do { \ + if (__unsafe_setup_sigcontext32(sc, fp, regs, set->sig[0])) \ + goto label; \ +} while(0) + /* * Determine which stack to use.. */ @@ -252,8 +236,7 @@ int ia32_setup_frame(int sig, struct ksignal *ksig, { struct sigframe_ia32 __user *frame; void __user *restorer; - int err = 0; - void __user *fpstate = NULL; + void __user *fp = NULL; /* copy_to_user optimizes that into a single 8 byte store */ static const struct { @@ -266,22 +249,7 @@ int ia32_setup_frame(int sig, struct ksignal *ksig, 0x80cd, /* int $0x80 */ }; - frame = get_sigframe(ksig, regs, sizeof(*frame), &fpstate); - - if (!access_ok(frame, sizeof(*frame))) - return -EFAULT; - - if (__put_user(sig, &frame->sig)) - return -EFAULT; - - if (ia32_setup_sigcontext(&frame->sc, fpstate, regs, set->sig[0])) - return -EFAULT; - - if (_COMPAT_NSIG_WORDS > 1) { - if (__copy_to_user(frame->extramask, &set->sig[1], - sizeof(frame->extramask))) - return -EFAULT; - } + frame = get_sigframe(ksig, regs, sizeof(*frame), &fp); if (ksig->ka.sa.sa_flags & SA_RESTORER) { restorer = ksig->ka.sa.sa_restorer; @@ -294,19 +262,20 @@ int ia32_setup_frame(int sig, struct ksignal *ksig, restorer = &frame->retcode; } - put_user_try { - put_user_ex(ptr_to_compat(restorer), &frame->pretcode); - - /* - * These are actually not used anymore, but left because some - * gdb versions depend on them as a marker. - */ - put_user_ex(*((u64 *)&code), (u64 __user *)frame->retcode); - } put_user_catch(err); - - if (err) + if (!user_access_begin(frame, sizeof(*frame))) return -EFAULT; + unsafe_put_user(sig, &frame->sig, Efault); + unsafe_put_sigcontext32(&frame->sc, fp, regs, set, Efault); + unsafe_put_user(set->sig[1], &frame->extramask[0], Efault); + unsafe_put_user(ptr_to_compat(restorer), &frame->pretcode, Efault); + /* + * These are actually not used anymore, but left because some + * gdb versions depend on them as a marker. + */ + unsafe_put_user(*((u64 *)&code), (u64 __user *)frame->retcode, Efault); + user_access_end(); + /* Set up registers for signal handler */ regs->sp = (unsigned long) frame; regs->ip = (unsigned long) ksig->ka.sa.sa_handler; @@ -323,6 +292,9 @@ int ia32_setup_frame(int sig, struct ksignal *ksig, regs->ss = __USER32_DS; return 0; +Efault: + user_access_end(); + return -EFAULT; } int ia32_setup_rt_frame(int sig, struct ksignal *ksig, @@ -330,10 +302,9 @@ int ia32_setup_rt_frame(int sig, struct ksignal *ksig, { struct rt_sigframe_ia32 __user *frame; void __user *restorer; - int err = 0; - void __user *fpstate = NULL; + void __user *fp = NULL; - /* __copy_to_user optimizes that into a single 8 byte store */ + /* unsafe_put_user optimizes that into a single 8 byte store */ static const struct { u8 movl; u32 val; @@ -346,44 +317,40 @@ int ia32_setup_rt_frame(int sig, struct ksignal *ksig, 0, }; - frame = get_sigframe(ksig, regs, sizeof(*frame), &fpstate); + frame = get_sigframe(ksig, regs, sizeof(*frame), &fp); - if (!access_ok(frame, sizeof(*frame))) + if (!user_access_begin(frame, sizeof(*frame))) return -EFAULT; - put_user_try { - put_user_ex(sig, &frame->sig); - put_user_ex(ptr_to_compat(&frame->info), &frame->pinfo); - put_user_ex(ptr_to_compat(&frame->uc), &frame->puc); + unsafe_put_user(sig, &frame->sig, Efault); + unsafe_put_user(ptr_to_compat(&frame->info), &frame->pinfo, Efault); + unsafe_put_user(ptr_to_compat(&frame->uc), &frame->puc, Efault); - /* Create the ucontext. */ - if (static_cpu_has(X86_FEATURE_XSAVE)) - put_user_ex(UC_FP_XSTATE, &frame->uc.uc_flags); - else - put_user_ex(0, &frame->uc.uc_flags); - put_user_ex(0, &frame->uc.uc_link); - compat_save_altstack_ex(&frame->uc.uc_stack, regs->sp); + /* Create the ucontext. */ + if (static_cpu_has(X86_FEATURE_XSAVE)) + unsafe_put_user(UC_FP_XSTATE, &frame->uc.uc_flags, Efault); + else + unsafe_put_user(0, &frame->uc.uc_flags, Efault); + unsafe_put_user(0, &frame->uc.uc_link, Efault); + unsafe_compat_save_altstack(&frame->uc.uc_stack, regs->sp, Efault); - if (ksig->ka.sa.sa_flags & SA_RESTORER) - restorer = ksig->ka.sa.sa_restorer; - else - restorer = current->mm->context.vdso + - vdso_image_32.sym___kernel_rt_sigreturn; - put_user_ex(ptr_to_compat(restorer), &frame->pretcode); - - /* - * Not actually used anymore, but left because some gdb - * versions need it. - */ - put_user_ex(*((u64 *)&code), (u64 __user *)frame->retcode); - } put_user_catch(err); - - err |= __copy_siginfo_to_user32(&frame->info, &ksig->info, false); - err |= ia32_setup_sigcontext(&frame->uc.uc_mcontext, fpstate, - regs, set->sig[0]); - err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set)); - - if (err) + if (ksig->ka.sa.sa_flags & SA_RESTORER) + restorer = ksig->ka.sa.sa_restorer; + else + restorer = current->mm->context.vdso + + vdso_image_32.sym___kernel_rt_sigreturn; + unsafe_put_user(ptr_to_compat(restorer), &frame->pretcode, Efault); + + /* + * Not actually used anymore, but left because some gdb + * versions need it. + */ + unsafe_put_user(*((u64 *)&code), (u64 __user *)frame->retcode, Efault); + unsafe_put_sigcontext32(&frame->uc.uc_mcontext, fp, regs, set, Efault); + unsafe_put_user(*(__u64 *)set, (__u64 *)&frame->uc.uc_sigmask, Efault); + user_access_end(); + + if (__copy_siginfo_to_user32(&frame->info, &ksig->info, false)) return -EFAULT; /* Set up registers for signal handler */ @@ -402,4 +369,7 @@ int ia32_setup_rt_frame(int sig, struct ksignal *ksig, regs->ss = __USER32_DS; return 0; +Efault: + user_access_end(); + return -EFAULT; } diff --git a/arch/x86/include/asm/amd_nb.h b/arch/x86/include/asm/amd_nb.h index 1ae4e5791afa..c7df20e78b09 100644 --- a/arch/x86/include/asm/amd_nb.h +++ b/arch/x86/include/asm/amd_nb.h @@ -12,7 +12,6 @@ struct amd_nb_bus_dev_range { u8 dev_limit; }; -extern const struct pci_device_id amd_nb_misc_ids[]; extern const struct amd_nb_bus_dev_range amd_nb_bus_dev_ranges[]; extern bool early_is_amd_nb(u32 value); diff --git a/arch/x86/include/asm/asm.h b/arch/x86/include/asm/asm.h index cd339b88d5d4..0f63585edf5f 100644 --- a/arch/x86/include/asm/asm.h +++ b/arch/x86/include/asm/asm.h @@ -138,9 +138,6 @@ # define _ASM_EXTABLE_FAULT(from, to) \ _ASM_EXTABLE_HANDLE(from, to, ex_handler_fault) -# define _ASM_EXTABLE_EX(from, to) \ - _ASM_EXTABLE_HANDLE(from, to, ex_handler_ext) - # define _ASM_NOKPROBE(entry) \ .pushsection "_kprobe_blacklist","aw" ; \ _ASM_ALIGN ; \ @@ -166,9 +163,6 @@ # define _ASM_EXTABLE_FAULT(from, to) \ _ASM_EXTABLE_HANDLE(from, to, ex_handler_fault) -# define _ASM_EXTABLE_EX(from, to) \ - _ASM_EXTABLE_HANDLE(from, to, ex_handler_ext) - /* For C file, we already have NOKPROBE_SYMBOL macro */ #endif diff --git a/arch/x86/include/asm/clocksource.h b/arch/x86/include/asm/clocksource.h index dc4cfc888d6d..dc9dc7b3911a 100644 --- a/arch/x86/include/asm/clocksource.h +++ b/arch/x86/include/asm/clocksource.h @@ -4,14 +4,18 @@ #ifndef _ASM_X86_CLOCKSOURCE_H #define _ASM_X86_CLOCKSOURCE_H -#define VCLOCK_NONE 0 /* No vDSO clock available. */ -#define VCLOCK_TSC 1 /* vDSO should use vread_tsc. */ -#define VCLOCK_PVCLOCK 2 /* vDSO should use vread_pvclock. */ -#define VCLOCK_HVCLOCK 3 /* vDSO should use vread_hvclock. */ -#define VCLOCK_MAX 3 +#include <asm/vdso/clocksource.h> -struct arch_clocksource_data { - int vclock_mode; -}; +extern unsigned int vclocks_used; + +static inline bool vclock_was_used(int vclock) +{ + return READ_ONCE(vclocks_used) & (1U << vclock); +} + +static inline void vclocks_set_used(unsigned int which) +{ + WRITE_ONCE(vclocks_used, READ_ONCE(vclocks_used) | (1 << which)); +} #endif /* _ASM_X86_CLOCKSOURCE_H */ diff --git a/arch/x86/include/asm/cpu.h b/arch/x86/include/asm/cpu.h index adc6cc86b062..ff6f3ca649b3 100644 --- a/arch/x86/include/asm/cpu.h +++ b/arch/x86/include/asm/cpu.h @@ -40,4 +40,16 @@ int mwait_usable(const struct cpuinfo_x86 *); unsigned int x86_family(unsigned int sig); unsigned int x86_model(unsigned int sig); unsigned int x86_stepping(unsigned int sig); +#ifdef CONFIG_CPU_SUP_INTEL +extern void __init cpu_set_core_cap_bits(struct cpuinfo_x86 *c); +extern void switch_to_sld(unsigned long tifn); +extern bool handle_user_split_lock(struct pt_regs *regs, long error_code); +#else +static inline void __init cpu_set_core_cap_bits(struct cpuinfo_x86 *c) {} +static inline void switch_to_sld(unsigned long tifn) {} +static inline bool handle_user_split_lock(struct pt_regs *regs, long error_code) +{ + return false; +} +#endif #endif /* _ASM_X86_CPU_H */ diff --git a/arch/x86/include/asm/cpu_device_id.h b/arch/x86/include/asm/cpu_device_id.h index 31c379c1da41..cf3d621c6892 100644 --- a/arch/x86/include/asm/cpu_device_id.h +++ b/arch/x86/include/asm/cpu_device_id.h @@ -5,9 +5,139 @@ /* * Declare drivers belonging to specific x86 CPUs * Similar in spirit to pci_device_id and related PCI functions + * + * The wildcard initializers are in mod_devicetable.h because + * file2alias needs them. Sigh. */ - #include <linux/mod_devicetable.h> +/* Get the INTEL_FAM* model defines */ +#include <asm/intel-family.h> +/* And the X86_VENDOR_* ones */ +#include <asm/processor.h> + +/* Centaur FAM6 models */ +#define X86_CENTAUR_FAM6_C7_A 0xa +#define X86_CENTAUR_FAM6_C7_D 0xd +#define X86_CENTAUR_FAM6_NANO 0xf + +/** + * X86_MATCH_VENDOR_FAM_MODEL_FEATURE - Base macro for CPU matching + * @_vendor: The vendor name, e.g. INTEL, AMD, HYGON, ..., ANY + * The name is expanded to X86_VENDOR_@_vendor + * @_family: The family number or X86_FAMILY_ANY + * @_model: The model number, model constant or X86_MODEL_ANY + * @_feature: A X86_FEATURE bit or X86_FEATURE_ANY + * @_data: Driver specific data or NULL. The internal storage + * format is unsigned long. The supplied value, pointer + * etc. is casted to unsigned long internally. + * + * Use only if you need all selectors. Otherwise use one of the shorter + * macros of the X86_MATCH_* family. If there is no matching shorthand + * macro, consider to add one. If you really need to wrap one of the macros + * into another macro at the usage site for good reasons, then please + * start this local macro with X86_MATCH to allow easy grepping. + */ +#define X86_MATCH_VENDOR_FAM_MODEL_FEATURE(_vendor, _family, _model, \ + _feature, _data) { \ + .vendor = X86_VENDOR_##_vendor, \ + .family = _family, \ + .model = _model, \ + .feature = _feature, \ + .driver_data = (unsigned long) _data \ +} + +/** + * X86_MATCH_VENDOR_FAM_FEATURE - Macro for matching vendor, family and CPU feature + * @vendor: The vendor name, e.g. INTEL, AMD, HYGON, ..., ANY + * The name is expanded to X86_VENDOR_@vendor + * @family: The family number or X86_FAMILY_ANY + * @feature: A X86_FEATURE bit + * @data: Driver specific data or NULL. The internal storage + * format is unsigned long. The supplied value, pointer + * etc. is casted to unsigned long internally. + * + * All other missing arguments of X86_MATCH_VENDOR_FAM_MODEL_FEATURE() are + * set to wildcards. + */ +#define X86_MATCH_VENDOR_FAM_FEATURE(vendor, family, feature, data) \ + X86_MATCH_VENDOR_FAM_MODEL_FEATURE(vendor, family, \ + X86_MODEL_ANY, feature, data) + +/** + * X86_MATCH_VENDOR_FEATURE - Macro for matching vendor and CPU feature + * @vendor: The vendor name, e.g. INTEL, AMD, HYGON, ..., ANY + * The name is expanded to X86_VENDOR_@vendor + * @feature: A X86_FEATURE bit + * @data: Driver specific data or NULL. The internal storage + * format is unsigned long. The supplied value, pointer + * etc. is casted to unsigned long internally. + * + * All other missing arguments of X86_MATCH_VENDOR_FAM_MODEL_FEATURE() are + * set to wildcards. + */ +#define X86_MATCH_VENDOR_FEATURE(vendor, feature, data) \ + X86_MATCH_VENDOR_FAM_FEATURE(vendor, X86_FAMILY_ANY, feature, data) + +/** + * X86_MATCH_FEATURE - Macro for matching a CPU feature + * @feature: A X86_FEATURE bit + * @data: Driver specific data or NULL. The internal storage + * format is unsigned long. The supplied value, pointer + * etc. is casted to unsigned long internally. + * + * All other missing arguments of X86_MATCH_VENDOR_FAM_MODEL_FEATURE() are + * set to wildcards. + */ +#define X86_MATCH_FEATURE(feature, data) \ + X86_MATCH_VENDOR_FEATURE(ANY, feature, data) + +/** + * X86_MATCH_VENDOR_FAM_MODEL - Match vendor, family and model + * @vendor: The vendor name, e.g. INTEL, AMD, HYGON, ..., ANY + * The name is expanded to X86_VENDOR_@vendor + * @family: The family number or X86_FAMILY_ANY + * @model: The model number, model constant or X86_MODEL_ANY + * @data: Driver specific data or NULL. The internal storage + * format is unsigned long. The supplied value, pointer + * etc. is casted to unsigned long internally. + * + * All other missing arguments of X86_MATCH_VENDOR_FAM_MODEL_FEATURE() are + * set to wildcards. + */ +#define X86_MATCH_VENDOR_FAM_MODEL(vendor, family, model, data) \ + X86_MATCH_VENDOR_FAM_MODEL_FEATURE(vendor, family, model, \ + X86_FEATURE_ANY, data) + +/** + * X86_MATCH_VENDOR_FAM - Match vendor and family + * @vendor: The vendor name, e.g. INTEL, AMD, HYGON, ..., ANY + * The name is expanded to X86_VENDOR_@vendor + * @family: The family number or X86_FAMILY_ANY + * @data: Driver specific data or NULL. The internal storage + * format is unsigned long. The supplied value, pointer + * etc. is casted to unsigned long internally. + * + * All other missing arguments to X86_MATCH_VENDOR_FAM_MODEL_FEATURE() are + * set of wildcards. + */ +#define X86_MATCH_VENDOR_FAM(vendor, family, data) \ + X86_MATCH_VENDOR_FAM_MODEL(vendor, family, X86_MODEL_ANY, data) + +/** + * X86_MATCH_INTEL_FAM6_MODEL - Match vendor INTEL, family 6 and model + * @model: The model name without the INTEL_FAM6_ prefix or ANY + * The model name is expanded to INTEL_FAM6_@model internally + * @data: Driver specific data or NULL. The internal storage + * format is unsigned long. The supplied value, pointer + * etc. is casted to unsigned long internally. + * + * The vendor is set to INTEL, the family to 6 and all other missing + * arguments of X86_MATCH_VENDOR_FAM_MODEL_FEATURE() are set to wildcards. + * + * See X86_MATCH_VENDOR_FAM_MODEL_FEATURE() for further information. + */ +#define X86_MATCH_INTEL_FAM6_MODEL(model, data) \ + X86_MATCH_VENDOR_FAM_MODEL(INTEL, 6, INTEL_FAM6_##model, data) /* * Match specific microcode revisions. diff --git a/arch/x86/include/asm/cpufeatures.h b/arch/x86/include/asm/cpufeatures.h index f3327cb56edf..db189945e9b0 100644 --- a/arch/x86/include/asm/cpufeatures.h +++ b/arch/x86/include/asm/cpufeatures.h @@ -217,7 +217,7 @@ #define X86_FEATURE_IBRS ( 7*32+25) /* Indirect Branch Restricted Speculation */ #define X86_FEATURE_IBPB ( 7*32+26) /* Indirect Branch Prediction Barrier */ #define X86_FEATURE_STIBP ( 7*32+27) /* Single Thread Indirect Branch Predictors */ -#define X86_FEATURE_ZEN ( 7*32+28) /* "" CPU is AMD family 0x17 (Zen) */ +#define X86_FEATURE_ZEN ( 7*32+28) /* "" CPU is AMD family 0x17 or above (Zen) */ #define X86_FEATURE_L1TF_PTEINV ( 7*32+29) /* "" L1TF workaround PTE inversion */ #define X86_FEATURE_IBRS_ENHANCED ( 7*32+30) /* Enhanced IBRS */ #define X86_FEATURE_MSR_IA32_FEAT_CTL ( 7*32+31) /* "" MSR IA32_FEAT_CTL configured */ @@ -285,6 +285,7 @@ #define X86_FEATURE_CQM_MBM_LOCAL (11*32+ 3) /* LLC Local MBM monitoring */ #define X86_FEATURE_FENCE_SWAPGS_USER (11*32+ 4) /* "" LFENCE in user entry SWAPGS path */ #define X86_FEATURE_FENCE_SWAPGS_KERNEL (11*32+ 5) /* "" LFENCE in kernel entry SWAPGS path */ +#define X86_FEATURE_SPLIT_LOCK_DETECT (11*32+ 6) /* #AC for split lock */ /* Intel-defined CPU features, CPUID level 0x00000007:1 (EAX), word 12 */ #define X86_FEATURE_AVX512_BF16 (12*32+ 5) /* AVX512 BFLOAT16 instructions */ @@ -299,6 +300,7 @@ #define X86_FEATURE_AMD_IBRS (13*32+14) /* "" Indirect Branch Restricted Speculation */ #define X86_FEATURE_AMD_STIBP (13*32+15) /* "" Single Thread Indirect Branch Predictors */ #define X86_FEATURE_AMD_STIBP_ALWAYS_ON (13*32+17) /* "" Single Thread Indirect Branch Predictors always-on preferred */ +#define X86_FEATURE_AMD_PPIN (13*32+23) /* Protected Processor Inventory Number */ #define X86_FEATURE_AMD_SSBD (13*32+24) /* "" Speculative Store Bypass Disable */ #define X86_FEATURE_VIRT_SSBD (13*32+25) /* Virtualized Speculative Store Bypass Disable */ #define X86_FEATURE_AMD_SSB_NO (13*32+26) /* "" Speculative Store Bypass is fixed in hardware. */ @@ -367,6 +369,7 @@ #define X86_FEATURE_INTEL_STIBP (18*32+27) /* "" Single Thread Indirect Branch Predictors */ #define X86_FEATURE_FLUSH_L1D (18*32+28) /* Flush L1D cache */ #define X86_FEATURE_ARCH_CAPABILITIES (18*32+29) /* IA32_ARCH_CAPABILITIES MSR (Intel) */ +#define X86_FEATURE_CORE_CAPABILITIES (18*32+30) /* "" IA32_CORE_CAPABILITIES MSR */ #define X86_FEATURE_SPEC_CTRL_SSBD (18*32+31) /* "" Speculative Store Bypass Disable */ /* diff --git a/arch/x86/include/asm/dwarf2.h b/arch/x86/include/asm/dwarf2.h index ae391f609840..f71a0cce9373 100644 --- a/arch/x86/include/asm/dwarf2.h +++ b/arch/x86/include/asm/dwarf2.h @@ -42,8 +42,8 @@ * Emit CFI data in .debug_frame sections, not .eh_frame sections. * The latter we currently just discard since we don't do DWARF * unwinding at runtime. So only the offline DWARF information is - * useful to anyone. Note we should not use this directive if - * vmlinux.lds.S gets changed so it doesn't discard .eh_frame. + * useful to anyone. Note we should not use this directive if we + * ever decide to enable DWARF unwinding at runtime. */ .cfi_sections .debug_frame #else diff --git a/arch/x86/include/asm/efi.h b/arch/x86/include/asm/efi.h index 86169a24b0d8..cdcf48d52a12 100644 --- a/arch/x86/include/asm/efi.h +++ b/arch/x86/include/asm/efi.h @@ -10,6 +10,8 @@ #include <asm/mmu_context.h> #include <linux/build_bug.h> +extern unsigned long efi_fw_vendor, efi_config_table; + /* * We map the EFI regions needed for runtime services non-contiguously, * with preserved alignment on virtual addresses starting from -4G down @@ -34,8 +36,6 @@ static inline bool efi_have_uv1_memmap(void) #define EFI32_LOADER_SIGNATURE "EL32" #define EFI64_LOADER_SIGNATURE "EL64" -#define MAX_CMDLINE_ADDRESS UINT_MAX - #define ARCH_EFI_IRQ_FLAGS_MASK X86_EFLAGS_IF /* @@ -180,7 +180,6 @@ extern void __init efi_uv1_memmap_phys_epilog(pgd_t *save_pgd); struct efi_setup_data { u64 fw_vendor; - u64 runtime; u64 tables; u64 smbios; u64 reserved[8]; @@ -219,7 +218,8 @@ extern void efi_thunk_runtime_setup(void); efi_status_t efi_set_virtual_address_map(unsigned long memory_map_size, unsigned long descriptor_size, u32 descriptor_version, - efi_memory_desc_t *virtual_map); + efi_memory_desc_t *virtual_map, + unsigned long systab_phys); /* arch specific definitions used by the stub code */ @@ -270,6 +270,11 @@ static inline void *efi64_zero_upper(void *p) return p; } +static inline u32 efi64_convert_status(efi_status_t status) +{ + return (u32)(status | (u64)status >> 32); +} + #define __efi64_argmap_free_pages(addr, size) \ ((addr), 0, (size)) @@ -285,11 +290,21 @@ static inline void *efi64_zero_upper(void *p) #define __efi64_argmap_locate_protocol(protocol, reg, interface) \ ((protocol), (reg), efi64_zero_upper(interface)) +#define __efi64_argmap_locate_device_path(protocol, path, handle) \ + ((protocol), (path), efi64_zero_upper(handle)) + +#define __efi64_argmap_exit(handle, status, size, data) \ + ((handle), efi64_convert_status(status), (size), (data)) + /* PCI I/O */ #define __efi64_argmap_get_location(protocol, seg, bus, dev, func) \ ((protocol), efi64_zero_upper(seg), efi64_zero_upper(bus), \ efi64_zero_upper(dev), efi64_zero_upper(func)) +/* LoadFile */ +#define __efi64_argmap_load_file(protocol, path, policy, bufsize, buf) \ + ((protocol), (path), (policy), efi64_zero_upper(bufsize), (buf)) + /* * The macros below handle the plumbing for the argument mapping. To add a * mapping for a specific EFI method, simply define a macro diff --git a/arch/x86/include/asm/futex.h b/arch/x86/include/asm/futex.h index 13c83fe97988..f9c00110a69a 100644 --- a/arch/x86/include/asm/futex.h +++ b/arch/x86/include/asm/futex.h @@ -12,76 +12,103 @@ #include <asm/processor.h> #include <asm/smap.h> -#define __futex_atomic_op1(insn, ret, oldval, uaddr, oparg) \ - asm volatile("\t" ASM_STAC "\n" \ - "1:\t" insn "\n" \ - "2:\t" ASM_CLAC "\n" \ +#define unsafe_atomic_op1(insn, oval, uaddr, oparg, label) \ +do { \ + int oldval = 0, ret; \ + asm volatile("1:\t" insn "\n" \ + "2:\n" \ "\t.section .fixup,\"ax\"\n" \ "3:\tmov\t%3, %1\n" \ "\tjmp\t2b\n" \ "\t.previous\n" \ _ASM_EXTABLE_UA(1b, 3b) \ : "=r" (oldval), "=r" (ret), "+m" (*uaddr) \ - : "i" (-EFAULT), "0" (oparg), "1" (0)) + : "i" (-EFAULT), "0" (oparg), "1" (0)); \ + if (ret) \ + goto label; \ + *oval = oldval; \ +} while(0) -#define __futex_atomic_op2(insn, ret, oldval, uaddr, oparg) \ - asm volatile("\t" ASM_STAC "\n" \ - "1:\tmovl %2, %0\n" \ - "\tmovl\t%0, %3\n" \ + +#define unsafe_atomic_op2(insn, oval, uaddr, oparg, label) \ +do { \ + int oldval = 0, ret, tem; \ + asm volatile("1:\tmovl %2, %0\n" \ + "2:\tmovl\t%0, %3\n" \ "\t" insn "\n" \ - "2:\t" LOCK_PREFIX "cmpxchgl %3, %2\n" \ - "\tjnz\t1b\n" \ - "3:\t" ASM_CLAC "\n" \ + "3:\t" LOCK_PREFIX "cmpxchgl %3, %2\n" \ + "\tjnz\t2b\n" \ + "4:\n" \ "\t.section .fixup,\"ax\"\n" \ - "4:\tmov\t%5, %1\n" \ - "\tjmp\t3b\n" \ + "5:\tmov\t%5, %1\n" \ + "\tjmp\t4b\n" \ "\t.previous\n" \ - _ASM_EXTABLE_UA(1b, 4b) \ - _ASM_EXTABLE_UA(2b, 4b) \ + _ASM_EXTABLE_UA(1b, 5b) \ + _ASM_EXTABLE_UA(3b, 5b) \ : "=&a" (oldval), "=&r" (ret), \ "+m" (*uaddr), "=&r" (tem) \ - : "r" (oparg), "i" (-EFAULT), "1" (0)) + : "r" (oparg), "i" (-EFAULT), "1" (0)); \ + if (ret) \ + goto label; \ + *oval = oldval; \ +} while(0) -static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval, +static __always_inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval, u32 __user *uaddr) { - int oldval = 0, ret, tem; - - pagefault_disable(); + if (!user_access_begin(uaddr, sizeof(u32))) + return -EFAULT; switch (op) { case FUTEX_OP_SET: - __futex_atomic_op1("xchgl %0, %2", ret, oldval, uaddr, oparg); + unsafe_atomic_op1("xchgl %0, %2", oval, uaddr, oparg, Efault); break; case FUTEX_OP_ADD: - __futex_atomic_op1(LOCK_PREFIX "xaddl %0, %2", ret, oldval, - uaddr, oparg); + unsafe_atomic_op1(LOCK_PREFIX "xaddl %0, %2", oval, + uaddr, oparg, Efault); break; case FUTEX_OP_OR: - __futex_atomic_op2("orl %4, %3", ret, oldval, uaddr, oparg); + unsafe_atomic_op2("orl %4, %3", oval, uaddr, oparg, Efault); break; case FUTEX_OP_ANDN: - __futex_atomic_op2("andl %4, %3", ret, oldval, uaddr, ~oparg); + unsafe_atomic_op2("andl %4, %3", oval, uaddr, ~oparg, Efault); break; case FUTEX_OP_XOR: - __futex_atomic_op2("xorl %4, %3", ret, oldval, uaddr, oparg); + unsafe_atomic_op2("xorl %4, %3", oval, uaddr, oparg, Efault); break; default: - ret = -ENOSYS; + user_access_end(); + return -ENOSYS; } - - pagefault_enable(); - - if (!ret) - *oval = oldval; - - return ret; + user_access_end(); + return 0; +Efault: + user_access_end(); + return -EFAULT; } static inline int futex_atomic_cmpxchg_inatomic(u32 *uval, u32 __user *uaddr, u32 oldval, u32 newval) { - return user_atomic_cmpxchg_inatomic(uval, uaddr, oldval, newval); + int ret = 0; + + if (!user_access_begin(uaddr, sizeof(u32))) + return -EFAULT; + asm volatile("\n" + "1:\t" LOCK_PREFIX "cmpxchgl %4, %2\n" + "2:\n" + "\t.section .fixup, \"ax\"\n" + "3:\tmov %3, %0\n" + "\tjmp 2b\n" + "\t.previous\n" + _ASM_EXTABLE_UA(1b, 3b) + : "+r" (ret), "=a" (oldval), "+m" (*uaddr) + : "i" (-EFAULT), "r" (newval), "1" (oldval) + : "memory" + ); + user_access_end(); + *uval = oldval; + return ret; } #endif diff --git a/arch/x86/include/asm/intel-family.h b/arch/x86/include/asm/intel-family.h index 4981c293f926..8f1e94f29a16 100644 --- a/arch/x86/include/asm/intel-family.h +++ b/arch/x86/include/asm/intel-family.h @@ -35,6 +35,9 @@ * The #define line may optionally include a comment including platform names. */ +/* Wildcard match for FAM6 so X86_MATCH_INTEL_FAM6_MODEL(ANY) works */ +#define INTEL_FAM6_ANY X86_MODEL_ANY + #define INTEL_FAM6_CORE_YONAH 0x0E #define INTEL_FAM6_CORE2_MEROM 0x0F @@ -118,17 +121,7 @@ #define INTEL_FAM6_XEON_PHI_KNL 0x57 /* Knights Landing */ #define INTEL_FAM6_XEON_PHI_KNM 0x85 /* Knights Mill */ -/* Useful macros */ -#define INTEL_CPU_FAM_ANY(_family, _model, _driver_data) \ -{ \ - .vendor = X86_VENDOR_INTEL, \ - .family = _family, \ - .model = _model, \ - .feature = X86_FEATURE_ANY, \ - .driver_data = (kernel_ulong_t)&_driver_data \ -} - -#define INTEL_CPU_FAM6(_model, _driver_data) \ - INTEL_CPU_FAM_ANY(6, INTEL_FAM6_##_model, _driver_data) +/* Family 5 */ +#define INTEL_FAM5_QUARK_X1000 0x09 /* Quark X1000 SoC */ #endif /* _ASM_X86_INTEL_FAMILY_H */ diff --git a/arch/x86/include/asm/io_bitmap.h b/arch/x86/include/asm/io_bitmap.h index 02c6ef8f7667..07344d82e88e 100644 --- a/arch/x86/include/asm/io_bitmap.h +++ b/arch/x86/include/asm/io_bitmap.h @@ -19,7 +19,14 @@ struct task_struct; void io_bitmap_share(struct task_struct *tsk); void io_bitmap_exit(void); -void tss_update_io_bitmap(void); +void native_tss_update_io_bitmap(void); + +#ifdef CONFIG_PARAVIRT_XXL +#include <asm/paravirt.h> +#else +#define tss_update_io_bitmap native_tss_update_io_bitmap +#endif + #else static inline void io_bitmap_share(struct task_struct *tsk) { } static inline void io_bitmap_exit(void) { } diff --git a/arch/x86/include/asm/irq.h b/arch/x86/include/asm/irq.h index a176f6165d85..72fba0eeeb30 100644 --- a/arch/x86/include/asm/irq.h +++ b/arch/x86/include/asm/irq.h @@ -36,7 +36,7 @@ extern void native_init_IRQ(void); extern void handle_irq(struct irq_desc *desc, struct pt_regs *regs); -extern __visible unsigned int do_IRQ(struct pt_regs *regs); +extern __visible void do_IRQ(struct pt_regs *regs); extern void init_ISA_irqs(void); diff --git a/arch/x86/include/asm/kprobes.h b/arch/x86/include/asm/kprobes.h index 95b1f053bd96..073eb7ad2f56 100644 --- a/arch/x86/include/asm/kprobes.h +++ b/arch/x86/include/asm/kprobes.h @@ -36,6 +36,7 @@ typedef u8 kprobe_opcode_t; /* optinsn template addresses */ extern __visible kprobe_opcode_t optprobe_template_entry[]; +extern __visible kprobe_opcode_t optprobe_template_clac[]; extern __visible kprobe_opcode_t optprobe_template_val[]; extern __visible kprobe_opcode_t optprobe_template_call[]; extern __visible kprobe_opcode_t optprobe_template_end[]; diff --git a/arch/x86/include/asm/kvm_emulate.h b/arch/x86/include/asm/kvm_emulate.h index 2a8f2bd2e5cf..c06e8353efd3 100644 --- a/arch/x86/include/asm/kvm_emulate.h +++ b/arch/x86/include/asm/kvm_emulate.h @@ -360,7 +360,6 @@ struct x86_emulate_ctxt { u64 d; unsigned long _eip; struct operand memop; - /* Fields above regs are cleared together. */ unsigned long _regs[NR_VCPU_REGS]; struct operand *memopp; struct fetch_cache fetch; diff --git a/arch/x86/include/asm/mce.h b/arch/x86/include/asm/mce.h index 4359b955e0b7..f9cea081c05b 100644 --- a/arch/x86/include/asm/mce.h +++ b/arch/x86/include/asm/mce.h @@ -102,7 +102,7 @@ #define MCE_OVERFLOW 0 /* bit 0 in flags means overflow */ -#define MCE_LOG_LEN 32 +#define MCE_LOG_MIN_LEN 32U #define MCE_LOG_SIGNATURE "MACHINECHECK" /* AMD Scalable MCA */ @@ -135,11 +135,11 @@ */ struct mce_log_buffer { char signature[12]; /* "MACHINECHECK" */ - unsigned len; /* = MCE_LOG_LEN */ + unsigned len; /* = elements in .mce_entry[] */ unsigned next; unsigned flags; unsigned recordlen; /* length of struct mce */ - struct mce entry[MCE_LOG_LEN]; + struct mce entry[]; }; enum mce_notifier_prios { @@ -238,9 +238,6 @@ extern void mce_disable_bank(int bank); /* * Exception handler */ - -/* Call the installed machine check handler for this CPU setup. */ -extern void (*machine_check_vector)(struct pt_regs *, long error_code); void do_machine_check(struct pt_regs *, long); /* diff --git a/arch/x86/include/asm/mshyperv.h b/arch/x86/include/asm/mshyperv.h index 6b79515abb82..edc2c581704a 100644 --- a/arch/x86/include/asm/mshyperv.h +++ b/arch/x86/include/asm/mshyperv.h @@ -46,7 +46,9 @@ typedef int (*hyperv_fill_flush_list_func)( #define hv_set_reference_tsc(val) \ wrmsrl(HV_X64_MSR_REFERENCE_TSC, val) #define hv_set_clocksource_vdso(val) \ - ((val).archdata.vclock_mode = VCLOCK_HVCLOCK) + ((val).vdso_clock_mode = VDSO_CLOCKMODE_HVCLOCK) +#define hv_enable_vdso_clocksource() \ + vclocks_set_used(VDSO_CLOCKMODE_HVCLOCK); #define hv_get_raw_timer() rdtsc_ordered() void hyperv_callback_vector(void); diff --git a/arch/x86/include/asm/msr-index.h b/arch/x86/include/asm/msr-index.h index d5e517d1c3dd..12c9684d59ba 100644 --- a/arch/x86/include/asm/msr-index.h +++ b/arch/x86/include/asm/msr-index.h @@ -41,6 +41,10 @@ /* Intel MSRs. Some also available on other CPUs */ +#define MSR_TEST_CTRL 0x00000033 +#define MSR_TEST_CTRL_SPLIT_LOCK_DETECT_BIT 29 +#define MSR_TEST_CTRL_SPLIT_LOCK_DETECT BIT(MSR_TEST_CTRL_SPLIT_LOCK_DETECT_BIT) + #define MSR_IA32_SPEC_CTRL 0x00000048 /* Speculation Control */ #define SPEC_CTRL_IBRS BIT(0) /* Indirect Branch Restricted Speculation */ #define SPEC_CTRL_STIBP_SHIFT 1 /* Single Thread Indirect Branch Predictor (STIBP) bit */ @@ -70,6 +74,11 @@ */ #define MSR_IA32_UMWAIT_CONTROL_TIME_MASK (~0x03U) +/* Abbreviated from Intel SDM name IA32_CORE_CAPABILITIES */ +#define MSR_IA32_CORE_CAPS 0x000000cf +#define MSR_IA32_CORE_CAPS_SPLIT_LOCK_DETECT_BIT 5 +#define MSR_IA32_CORE_CAPS_SPLIT_LOCK_DETECT BIT(MSR_IA32_CORE_CAPS_SPLIT_LOCK_DETECT_BIT) + #define MSR_PKG_CST_CONFIG_CONTROL 0x000000e2 #define NHM_C3_AUTO_DEMOTE (1UL << 25) #define NHM_C1_AUTO_DEMOTE (1UL << 26) diff --git a/arch/x86/include/asm/mwait.h b/arch/x86/include/asm/mwait.h index 9d5252c9685c..b809f117f3f4 100644 --- a/arch/x86/include/asm/mwait.h +++ b/arch/x86/include/asm/mwait.h @@ -23,6 +23,8 @@ #define MWAITX_MAX_LOOPS ((u32)-1) #define MWAITX_DISABLE_CSTATES 0xf0 +u32 get_umwait_control_msr(void); + static inline void __monitor(const void *eax, unsigned long ecx, unsigned long edx) { diff --git a/arch/x86/include/asm/paravirt.h b/arch/x86/include/asm/paravirt.h index 86e7317eb31f..694d8daf4983 100644 --- a/arch/x86/include/asm/paravirt.h +++ b/arch/x86/include/asm/paravirt.h @@ -295,6 +295,13 @@ static inline void write_idt_entry(gate_desc *dt, int entry, const gate_desc *g) PVOP_VCALL3(cpu.write_idt_entry, dt, entry, g); } +#ifdef CONFIG_X86_IOPL_IOPERM +static inline void tss_update_io_bitmap(void) +{ + PVOP_VCALL0(cpu.update_io_bitmap); +} +#endif + static inline void paravirt_activate_mm(struct mm_struct *prev, struct mm_struct *next) { diff --git a/arch/x86/include/asm/paravirt_types.h b/arch/x86/include/asm/paravirt_types.h index 84812964d3dd..732f62e04ddb 100644 --- a/arch/x86/include/asm/paravirt_types.h +++ b/arch/x86/include/asm/paravirt_types.h @@ -140,6 +140,10 @@ struct pv_cpu_ops { void (*load_sp0)(unsigned long sp0); +#ifdef CONFIG_X86_IOPL_IOPERM + void (*update_io_bitmap)(void); +#endif + void (*wbinvd)(void); /* cpuid emulation, mostly so that caps bits can be disabled */ diff --git a/arch/x86/include/asm/perf_event.h b/arch/x86/include/asm/perf_event.h index 29964b0e1075..e855e9cf2c37 100644 --- a/arch/x86/include/asm/perf_event.h +++ b/arch/x86/include/asm/perf_event.h @@ -50,11 +50,22 @@ #define AMD64_L3_SLICE_SHIFT 48 #define AMD64_L3_SLICE_MASK \ - ((0xFULL) << AMD64_L3_SLICE_SHIFT) + (0xFULL << AMD64_L3_SLICE_SHIFT) +#define AMD64_L3_SLICEID_MASK \ + (0x7ULL << AMD64_L3_SLICE_SHIFT) #define AMD64_L3_THREAD_SHIFT 56 #define AMD64_L3_THREAD_MASK \ - ((0xFFULL) << AMD64_L3_THREAD_SHIFT) + (0xFFULL << AMD64_L3_THREAD_SHIFT) +#define AMD64_L3_F19H_THREAD_MASK \ + (0x3ULL << AMD64_L3_THREAD_SHIFT) + +#define AMD64_L3_EN_ALL_CORES BIT_ULL(47) +#define AMD64_L3_EN_ALL_SLICES BIT_ULL(46) + +#define AMD64_L3_COREID_SHIFT 42 +#define AMD64_L3_COREID_MASK \ + (0x7ULL << AMD64_L3_COREID_SHIFT) #define X86_RAW_EVENT_MASK \ (ARCH_PERFMON_EVENTSEL_EVENT | \ diff --git a/arch/x86/include/asm/pgtable.h b/arch/x86/include/asm/pgtable.h index 64a03f226ab7..afda66a6d325 100644 --- a/arch/x86/include/asm/pgtable.h +++ b/arch/x86/include/asm/pgtable.h @@ -595,12 +595,6 @@ static inline pmd_t pmd_mknotpresent(pmd_t pmd) __pgprot(pmd_flags(pmd) & ~(_PAGE_PRESENT|_PAGE_PROTNONE))); } -static inline pud_t pud_mknotpresent(pud_t pud) -{ - return pfn_pud(pud_pfn(pud), - __pgprot(pud_flags(pud) & ~(_PAGE_PRESENT|_PAGE_PROTNONE))); -} - static inline u64 flip_protnone_guard(u64 oldval, u64 val, u64 mask); static inline pte_t pte_modify(pte_t pte, pgprot_t newprot) diff --git a/arch/x86/include/asm/pkeys.h b/arch/x86/include/asm/pkeys.h index 19b137f1b3be..2ff9b98812b7 100644 --- a/arch/x86/include/asm/pkeys.h +++ b/arch/x86/include/asm/pkeys.h @@ -4,6 +4,11 @@ #define ARCH_DEFAULT_PKEY 0 +/* + * If more than 16 keys are ever supported, a thorough audit + * will be necessary to ensure that the types that store key + * numbers and masks have sufficient capacity. + */ #define arch_max_pkey() (boot_cpu_has(X86_FEATURE_OSPKE) ? 16 : 1) extern int arch_set_user_pkey_access(struct task_struct *tsk, int pkey, diff --git a/arch/x86/include/asm/preempt.h b/arch/x86/include/asm/preempt.h index 3d4cb83a8828..69485ca13665 100644 --- a/arch/x86/include/asm/preempt.h +++ b/arch/x86/include/asm/preempt.h @@ -103,14 +103,14 @@ static __always_inline bool should_resched(int preempt_offset) } #ifdef CONFIG_PREEMPTION - extern asmlinkage void ___preempt_schedule(void); + extern asmlinkage void preempt_schedule_thunk(void); # define __preempt_schedule() \ - asm volatile ("call ___preempt_schedule" : ASM_CALL_CONSTRAINT) + asm volatile ("call preempt_schedule_thunk" : ASM_CALL_CONSTRAINT) extern asmlinkage void preempt_schedule(void); - extern asmlinkage void ___preempt_schedule_notrace(void); + extern asmlinkage void preempt_schedule_notrace_thunk(void); # define __preempt_schedule_notrace() \ - asm volatile ("call ___preempt_schedule_notrace" : ASM_CALL_CONSTRAINT) + asm volatile ("call preempt_schedule_notrace_thunk" : ASM_CALL_CONSTRAINT) extern asmlinkage void preempt_schedule_notrace(void); #endif diff --git a/arch/x86/include/asm/processor.h b/arch/x86/include/asm/processor.h index 09705ccc393c..3bcf27caf6c9 100644 --- a/arch/x86/include/asm/processor.h +++ b/arch/x86/include/asm/processor.h @@ -26,6 +26,7 @@ struct vm86; #include <asm/fpu/types.h> #include <asm/unwind_hints.h> #include <asm/vmxfeatures.h> +#include <asm/vdso/processor.h> #include <linux/personality.h> #include <linux/cache.h> @@ -541,7 +542,6 @@ struct thread_struct { mm_segment_t addr_limit; unsigned int sig_on_uaccess_err:1; - unsigned int uaccess_err:1; /* uaccess failed */ /* Floating point and extended processor state */ struct fpu fpu; @@ -677,17 +677,6 @@ static inline unsigned int cpuid_edx(unsigned int op) return edx; } -/* REP NOP (PAUSE) is a good thing to insert into busy-wait loops. */ -static __always_inline void rep_nop(void) -{ - asm volatile("rep; nop" ::: "memory"); -} - -static __always_inline void cpu_relax(void) -{ - rep_nop(); -} - /* * This function forces the icache and prefetched instruction stream to * catch up with reality in two very specific cases: diff --git a/arch/x86/include/asm/sections.h b/arch/x86/include/asm/sections.h index 036c360910c5..a6e8373a5170 100644 --- a/arch/x86/include/asm/sections.h +++ b/arch/x86/include/asm/sections.h @@ -2,6 +2,8 @@ #ifndef _ASM_X86_SECTIONS_H #define _ASM_X86_SECTIONS_H +#define arch_is_kernel_initmem_freed arch_is_kernel_initmem_freed + #include <asm-generic/sections.h> #include <asm/extable.h> @@ -14,4 +16,22 @@ extern char __end_rodata_hpage_align[]; extern char __end_of_kernel_reserve[]; +extern unsigned long _brk_start, _brk_end; + +static inline bool arch_is_kernel_initmem_freed(unsigned long addr) +{ + /* + * If _brk_start has not been cleared, brk allocation is incomplete, + * and we can not make assumptions about its use. + */ + if (_brk_start) + return 0; + + /* + * After brk allocation is complete, space between _brk_end and _end + * is available for allocation. + */ + return addr >= _brk_end && addr < (unsigned long)&_end; +} + #endif /* _ASM_X86_SECTIONS_H */ diff --git a/arch/x86/include/asm/set_memory.h b/arch/x86/include/asm/set_memory.h index 64c3dce374e5..950532ccbc4a 100644 --- a/arch/x86/include/asm/set_memory.h +++ b/arch/x86/include/asm/set_memory.h @@ -46,6 +46,8 @@ int set_memory_4k(unsigned long addr, int numpages); int set_memory_encrypted(unsigned long addr, int numpages); int set_memory_decrypted(unsigned long addr, int numpages); int set_memory_np_noalias(unsigned long addr, int numpages); +int set_memory_nonglobal(unsigned long addr, int numpages); +int set_memory_global(unsigned long addr, int numpages); int set_pages_array_uc(struct page **pages, int addrinarray); int set_pages_array_wc(struct page **pages, int addrinarray); diff --git a/arch/x86/include/asm/sigframe.h b/arch/x86/include/asm/sigframe.h index f176114c04d4..84eab2724875 100644 --- a/arch/x86/include/asm/sigframe.h +++ b/arch/x86/include/asm/sigframe.h @@ -33,11 +33,7 @@ struct sigframe_ia32 { * legacy application accessing/modifying it. */ struct _fpstate_32 fpstate_unused; -#ifdef CONFIG_IA32_EMULATION - unsigned int extramask[_COMPAT_NSIG_WORDS-1]; -#else /* !CONFIG_IA32_EMULATION */ - unsigned long extramask[_NSIG_WORDS-1]; -#endif /* CONFIG_IA32_EMULATION */ + unsigned int extramask[1]; char retcode[8]; /* fp state follows here */ }; diff --git a/arch/x86/include/asm/sighandling.h b/arch/x86/include/asm/sighandling.h index 2fcbd6f33ef7..65e667279e0f 100644 --- a/arch/x86/include/asm/sighandling.h +++ b/arch/x86/include/asm/sighandling.h @@ -14,12 +14,5 @@ X86_EFLAGS_CF | X86_EFLAGS_RF) void signal_fault(struct pt_regs *regs, void __user *frame, char *where); -int setup_sigcontext(struct sigcontext __user *sc, void __user *fpstate, - struct pt_regs *regs, unsigned long mask); - - -#ifdef CONFIG_X86_X32_ABI -asmlinkage long sys32_x32_rt_sigreturn(void); -#endif #endif /* _ASM_X86_SIGHANDLING_H */ diff --git a/arch/x86/include/asm/syscall.h b/arch/x86/include/asm/syscall.h index 8db3fdb6102e..7cbf733d11af 100644 --- a/arch/x86/include/asm/syscall.h +++ b/arch/x86/include/asm/syscall.h @@ -13,23 +13,14 @@ #include <uapi/linux/audit.h> #include <linux/sched.h> #include <linux/err.h> -#include <asm/asm-offsets.h> /* For NR_syscalls */ #include <asm/thread_info.h> /* for TS_COMPAT */ #include <asm/unistd.h> -#ifdef CONFIG_X86_64 -typedef asmlinkage long (*sys_call_ptr_t)(const struct pt_regs *); -#else -typedef asmlinkage long (*sys_call_ptr_t)(unsigned long, unsigned long, - unsigned long, unsigned long, - unsigned long, unsigned long); -#endif /* CONFIG_X86_64 */ +typedef long (*sys_call_ptr_t)(const struct pt_regs *); extern const sys_call_ptr_t sys_call_table[]; #if defined(CONFIG_X86_32) #define ia32_sys_call_table sys_call_table -#define __NR_syscall_compat_max __NR_syscall_max -#define IA32_NR_syscalls NR_syscalls #endif #if defined(CONFIG_IA32_EMULATION) @@ -168,6 +159,11 @@ static inline int syscall_get_arch(struct task_struct *task) task->thread_info.status & TS_COMPAT) ? AUDIT_ARCH_I386 : AUDIT_ARCH_X86_64; } + +void do_syscall_64(unsigned long nr, struct pt_regs *regs); +void do_int80_syscall_32(struct pt_regs *regs); +long do_fast_syscall_32(struct pt_regs *regs); + #endif /* CONFIG_X86_32 */ #endif /* _ASM_X86_SYSCALL_H */ diff --git a/arch/x86/include/asm/syscall_wrapper.h b/arch/x86/include/asm/syscall_wrapper.h index e2389ce9bf58..a84333adeef2 100644 --- a/arch/x86/include/asm/syscall_wrapper.h +++ b/arch/x86/include/asm/syscall_wrapper.h @@ -8,6 +8,50 @@ struct pt_regs; +extern long __x64_sys_ni_syscall(const struct pt_regs *regs); +extern long __ia32_sys_ni_syscall(const struct pt_regs *regs); + +/* + * Instead of the generic __SYSCALL_DEFINEx() definition, the x86 version takes + * struct pt_regs *regs as the only argument of the syscall stub(s) named as: + * __x64_sys_*() - 64-bit native syscall + * __ia32_sys_*() - 32-bit native syscall or common compat syscall + * __ia32_compat_sys_*() - 32-bit compat syscall + * __x32_compat_sys_*() - 64-bit X32 compat syscall + * + * The registers are decoded according to the ABI: + * 64-bit: RDI, RSI, RDX, R10, R8, R9 + * 32-bit: EBX, ECX, EDX, ESI, EDI, EBP + * + * The stub then passes the decoded arguments to the __se_sys_*() wrapper to + * perform sign-extension (omitted for zero-argument syscalls). Finally the + * arguments are passed to the __do_sys_*() function which is the actual + * syscall. These wrappers are marked as inline so the compiler can optimize + * the functions where appropriate. + * + * Example assembly (slightly re-ordered for better readability): + * + * <__x64_sys_recv>: <-- syscall with 4 parameters + * callq <__fentry__> + * + * mov 0x70(%rdi),%rdi <-- decode regs->di + * mov 0x68(%rdi),%rsi <-- decode regs->si + * mov 0x60(%rdi),%rdx <-- decode regs->dx + * mov 0x38(%rdi),%rcx <-- decode regs->r10 + * + * xor %r9d,%r9d <-- clear %r9 + * xor %r8d,%r8d <-- clear %r8 + * + * callq __sys_recvfrom <-- do the actual work in __sys_recvfrom() + * which takes 6 arguments + * + * cltq <-- extend return value to 64-bit + * retq <-- return + * + * This approach avoids leaking random user-provided register content down + * the call chain. + */ + /* Mapping of registers to parameters for syscalls on x86-64 and x32 */ #define SC_X86_64_REGS_TO_ARGS(x, ...) \ __MAP(x,__SC_ARGS \ @@ -21,68 +65,96 @@ struct pt_regs; ,,(unsigned int)regs->dx,,(unsigned int)regs->si \ ,,(unsigned int)regs->di,,(unsigned int)regs->bp) -#ifdef CONFIG_IA32_EMULATION -/* - * For IA32 emulation, we need to handle "compat" syscalls *and* create - * additional wrappers (aptly named __ia32_sys_xyzzy) which decode the - * ia32 regs in the proper order for shared or "common" syscalls. As some - * syscalls may not be implemented, we need to expand COND_SYSCALL in - * kernel/sys_ni.c and SYS_NI in kernel/time/posix-stubs.c to cover this - * case as well. - */ -#define __IA32_COMPAT_SYS_STUB0(x, name) \ - asmlinkage long __ia32_compat_sys_##name(const struct pt_regs *regs);\ - ALLOW_ERROR_INJECTION(__ia32_compat_sys_##name, ERRNO); \ - asmlinkage long __ia32_compat_sys_##name(const struct pt_regs *regs)\ +#define __SYS_STUB0(abi, name) \ + long __##abi##_##name(const struct pt_regs *regs); \ + ALLOW_ERROR_INJECTION(__##abi##_##name, ERRNO); \ + long __##abi##_##name(const struct pt_regs *regs) \ + __alias(__do_##name); + +#define __SYS_STUBx(abi, name, ...) \ + long __##abi##_##name(const struct pt_regs *regs); \ + ALLOW_ERROR_INJECTION(__##abi##_##name, ERRNO); \ + long __##abi##_##name(const struct pt_regs *regs) \ { \ - return __se_compat_sys_##name(); \ + return __se_##name(__VA_ARGS__); \ } -#define __IA32_COMPAT_SYS_STUBx(x, name, ...) \ - asmlinkage long __ia32_compat_sys##name(const struct pt_regs *regs);\ - ALLOW_ERROR_INJECTION(__ia32_compat_sys##name, ERRNO); \ - asmlinkage long __ia32_compat_sys##name(const struct pt_regs *regs)\ +#define __COND_SYSCALL(abi, name) \ + __weak long __##abi##_##name(const struct pt_regs *__unused) \ { \ - return __se_compat_sys##name(SC_IA32_REGS_TO_ARGS(x,__VA_ARGS__));\ + return sys_ni_syscall(); \ } +#define __SYS_NI(abi, name) \ + SYSCALL_ALIAS(__##abi##_##name, sys_ni_posix_timers); + +#ifdef CONFIG_X86_64 +#define __X64_SYS_STUB0(name) \ + __SYS_STUB0(x64, sys_##name) + +#define __X64_SYS_STUBx(x, name, ...) \ + __SYS_STUBx(x64, sys##name, \ + SC_X86_64_REGS_TO_ARGS(x, __VA_ARGS__)) + +#define __X64_COND_SYSCALL(name) \ + __COND_SYSCALL(x64, sys_##name) + +#define __X64_SYS_NI(name) \ + __SYS_NI(x64, sys_##name) +#else /* CONFIG_X86_64 */ +#define __X64_SYS_STUB0(name) +#define __X64_SYS_STUBx(x, name, ...) +#define __X64_COND_SYSCALL(name) +#define __X64_SYS_NI(name) +#endif /* CONFIG_X86_64 */ + +#if defined(CONFIG_X86_32) || defined(CONFIG_IA32_EMULATION) +#define __IA32_SYS_STUB0(name) \ + __SYS_STUB0(ia32, sys_##name) + #define __IA32_SYS_STUBx(x, name, ...) \ - asmlinkage long __ia32_sys##name(const struct pt_regs *regs); \ - ALLOW_ERROR_INJECTION(__ia32_sys##name, ERRNO); \ - asmlinkage long __ia32_sys##name(const struct pt_regs *regs) \ - { \ - return __se_sys##name(SC_IA32_REGS_TO_ARGS(x,__VA_ARGS__));\ - } + __SYS_STUBx(ia32, sys##name, \ + SC_IA32_REGS_TO_ARGS(x, __VA_ARGS__)) + +#define __IA32_COND_SYSCALL(name) \ + __COND_SYSCALL(ia32, sys_##name) +#define __IA32_SYS_NI(name) \ + __SYS_NI(ia32, sys_##name) +#else /* CONFIG_X86_32 || CONFIG_IA32_EMULATION */ +#define __IA32_SYS_STUB0(name) +#define __IA32_SYS_STUBx(x, name, ...) +#define __IA32_COND_SYSCALL(name) +#define __IA32_SYS_NI(name) +#endif /* CONFIG_X86_32 || CONFIG_IA32_EMULATION */ + +#ifdef CONFIG_IA32_EMULATION /* - * To keep the naming coherent, re-define SYSCALL_DEFINE0 to create an alias - * named __ia32_sys_*() + * For IA32 emulation, we need to handle "compat" syscalls *and* create + * additional wrappers (aptly named __ia32_sys_xyzzy) which decode the + * ia32 regs in the proper order for shared or "common" syscalls. As some + * syscalls may not be implemented, we need to expand COND_SYSCALL in + * kernel/sys_ni.c and SYS_NI in kernel/time/posix-stubs.c to cover this + * case as well. */ +#define __IA32_COMPAT_SYS_STUB0(name) \ + __SYS_STUB0(ia32, compat_sys_##name) -#define SYSCALL_DEFINE0(sname) \ - SYSCALL_METADATA(_##sname, 0); \ - asmlinkage long __x64_sys_##sname(const struct pt_regs *__unused);\ - ALLOW_ERROR_INJECTION(__x64_sys_##sname, ERRNO); \ - SYSCALL_ALIAS(__ia32_sys_##sname, __x64_sys_##sname); \ - asmlinkage long __x64_sys_##sname(const struct pt_regs *__unused) +#define __IA32_COMPAT_SYS_STUBx(x, name, ...) \ + __SYS_STUBx(ia32, compat_sys##name, \ + SC_IA32_REGS_TO_ARGS(x, __VA_ARGS__)) -#define COND_SYSCALL(name) \ - asmlinkage __weak long __x64_sys_##name(const struct pt_regs *__unused) \ - { \ - return sys_ni_syscall(); \ - } \ - asmlinkage __weak long __ia32_sys_##name(const struct pt_regs *__unused)\ - { \ - return sys_ni_syscall(); \ - } +#define __IA32_COMPAT_COND_SYSCALL(name) \ + __COND_SYSCALL(ia32, compat_sys_##name) -#define SYS_NI(name) \ - SYSCALL_ALIAS(__x64_sys_##name, sys_ni_posix_timers); \ - SYSCALL_ALIAS(__ia32_sys_##name, sys_ni_posix_timers) +#define __IA32_COMPAT_SYS_NI(name) \ + __SYS_NI(ia32, compat_sys_##name) #else /* CONFIG_IA32_EMULATION */ +#define __IA32_COMPAT_SYS_STUB0(name) #define __IA32_COMPAT_SYS_STUBx(x, name, ...) -#define __IA32_SYS_STUBx(x, fullname, name, ...) +#define __IA32_COMPAT_COND_SYSCALL(name) +#define __IA32_COMPAT_SYS_NI(name) #endif /* CONFIG_IA32_EMULATION */ @@ -92,25 +164,23 @@ struct pt_regs; * of the x86-64-style parameter ordering of x32 syscalls. The syscalls common * with x86_64 obviously do not need such care. */ -#define __X32_COMPAT_SYS_STUB0(x, name, ...) \ - asmlinkage long __x32_compat_sys_##name(const struct pt_regs *regs);\ - ALLOW_ERROR_INJECTION(__x32_compat_sys_##name, ERRNO); \ - asmlinkage long __x32_compat_sys_##name(const struct pt_regs *regs)\ - { \ - return __se_compat_sys_##name();\ - } +#define __X32_COMPAT_SYS_STUB0(name) \ + __SYS_STUB0(x32, compat_sys_##name) #define __X32_COMPAT_SYS_STUBx(x, name, ...) \ - asmlinkage long __x32_compat_sys##name(const struct pt_regs *regs);\ - ALLOW_ERROR_INJECTION(__x32_compat_sys##name, ERRNO); \ - asmlinkage long __x32_compat_sys##name(const struct pt_regs *regs)\ - { \ - return __se_compat_sys##name(SC_X86_64_REGS_TO_ARGS(x,__VA_ARGS__));\ - } + __SYS_STUBx(x32, compat_sys##name, \ + SC_X86_64_REGS_TO_ARGS(x, __VA_ARGS__)) + +#define __X32_COMPAT_COND_SYSCALL(name) \ + __COND_SYSCALL(x32, compat_sys_##name) +#define __X32_COMPAT_SYS_NI(name) \ + __SYS_NI(x32, compat_sys_##name) #else /* CONFIG_X86_X32 */ -#define __X32_COMPAT_SYS_STUB0(x, name) +#define __X32_COMPAT_SYS_STUB0(name) #define __X32_COMPAT_SYS_STUBx(x, name, ...) +#define __X32_COMPAT_COND_SYSCALL(name) +#define __X32_COMPAT_SYS_NI(name) #endif /* CONFIG_X86_X32 */ @@ -121,15 +191,12 @@ struct pt_regs; * of them. */ #define COMPAT_SYSCALL_DEFINE0(name) \ - static long __se_compat_sys_##name(void); \ - static inline long __do_compat_sys_##name(void); \ - __IA32_COMPAT_SYS_STUB0(x, name) \ - __X32_COMPAT_SYS_STUB0(x, name) \ - static long __se_compat_sys_##name(void) \ - { \ - return __do_compat_sys_##name(); \ - } \ - static inline long __do_compat_sys_##name(void) + static long \ + __do_compat_sys_##name(const struct pt_regs *__unused); \ + __IA32_COMPAT_SYS_STUB0(name) \ + __X32_COMPAT_SYS_STUB0(name) \ + static long \ + __do_compat_sys_##name(const struct pt_regs *__unused) #define COMPAT_SYSCALL_DEFINEx(x, name, ...) \ static long __se_compat_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)); \ @@ -148,58 +215,19 @@ struct pt_regs; * kernel/time/posix-stubs.c to cover this case as well. */ #define COND_SYSCALL_COMPAT(name) \ - cond_syscall(__ia32_compat_sys_##name); \ - cond_syscall(__x32_compat_sys_##name) + __IA32_COMPAT_COND_SYSCALL(name) \ + __X32_COMPAT_COND_SYSCALL(name) #define COMPAT_SYS_NI(name) \ - SYSCALL_ALIAS(__ia32_compat_sys_##name, sys_ni_posix_timers); \ - SYSCALL_ALIAS(__x32_compat_sys_##name, sys_ni_posix_timers) + __IA32_COMPAT_SYS_NI(name) \ + __X32_COMPAT_SYS_NI(name) #endif /* CONFIG_COMPAT */ - -/* - * Instead of the generic __SYSCALL_DEFINEx() definition, this macro takes - * struct pt_regs *regs as the only argument of the syscall stub named - * __x64_sys_*(). It decodes just the registers it needs and passes them on to - * the __se_sys_*() wrapper performing sign extension and then to the - * __do_sys_*() function doing the actual job. These wrappers and functions - * are inlined (at least in very most cases), meaning that the assembly looks - * as follows (slightly re-ordered for better readability): - * - * <__x64_sys_recv>: <-- syscall with 4 parameters - * callq <__fentry__> - * - * mov 0x70(%rdi),%rdi <-- decode regs->di - * mov 0x68(%rdi),%rsi <-- decode regs->si - * mov 0x60(%rdi),%rdx <-- decode regs->dx - * mov 0x38(%rdi),%rcx <-- decode regs->r10 - * - * xor %r9d,%r9d <-- clear %r9 - * xor %r8d,%r8d <-- clear %r8 - * - * callq __sys_recvfrom <-- do the actual work in __sys_recvfrom() - * which takes 6 arguments - * - * cltq <-- extend return value to 64-bit - * retq <-- return - * - * This approach avoids leaking random user-provided register content down - * the call chain. - * - * If IA32_EMULATION is enabled, this macro generates an additional wrapper - * named __ia32_sys_*() which decodes the struct pt_regs *regs according - * to the i386 calling convention (bx, cx, dx, si, di, bp). - */ #define __SYSCALL_DEFINEx(x, name, ...) \ - asmlinkage long __x64_sys##name(const struct pt_regs *regs); \ - ALLOW_ERROR_INJECTION(__x64_sys##name, ERRNO); \ static long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)); \ static inline long __do_sys##name(__MAP(x,__SC_DECL,__VA_ARGS__));\ - asmlinkage long __x64_sys##name(const struct pt_regs *regs) \ - { \ - return __se_sys##name(SC_X86_64_REGS_TO_ARGS(x,__VA_ARGS__));\ - } \ + __X64_SYS_STUBx(x, name, __VA_ARGS__) \ __IA32_SYS_STUBx(x, name, __VA_ARGS__) \ static long __se_sys##name(__MAP(x,__SC_LONG,__VA_ARGS__)) \ { \ @@ -217,33 +245,28 @@ struct pt_regs; * SYSCALL_DEFINEx() -- which is essential for the COND_SYSCALL() and SYS_NI() * macros to work correctly. */ -#ifndef SYSCALL_DEFINE0 #define SYSCALL_DEFINE0(sname) \ SYSCALL_METADATA(_##sname, 0); \ - asmlinkage long __x64_sys_##sname(const struct pt_regs *__unused);\ - ALLOW_ERROR_INJECTION(__x64_sys_##sname, ERRNO); \ - asmlinkage long __x64_sys_##sname(const struct pt_regs *__unused) -#endif - -#ifndef COND_SYSCALL -#define COND_SYSCALL(name) \ - asmlinkage __weak long __x64_sys_##name(const struct pt_regs *__unused) \ - { \ - return sys_ni_syscall(); \ - } -#endif + static long __do_sys_##sname(const struct pt_regs *__unused); \ + __X64_SYS_STUB0(sname) \ + __IA32_SYS_STUB0(sname) \ + static long __do_sys_##sname(const struct pt_regs *__unused) + +#define COND_SYSCALL(name) \ + __X64_COND_SYSCALL(name) \ + __IA32_COND_SYSCALL(name) -#ifndef SYS_NI -#define SYS_NI(name) SYSCALL_ALIAS(__x64_sys_##name, sys_ni_posix_timers); -#endif +#define SYS_NI(name) \ + __X64_SYS_NI(name) \ + __IA32_SYS_NI(name) /* * For VSYSCALLS, we need to declare these three syscalls with the new * pt_regs-based calling convention for in-kernel use. */ -asmlinkage long __x64_sys_getcpu(const struct pt_regs *regs); -asmlinkage long __x64_sys_gettimeofday(const struct pt_regs *regs); -asmlinkage long __x64_sys_time(const struct pt_regs *regs); +long __x64_sys_getcpu(const struct pt_regs *regs); +long __x64_sys_gettimeofday(const struct pt_regs *regs); +long __x64_sys_time(const struct pt_regs *regs); #endif /* _ASM_X86_SYSCALL_WRAPPER_H */ diff --git a/arch/x86/include/asm/syscalls.h b/arch/x86/include/asm/syscalls.h index 91b7b6e1a115..6714a358235d 100644 --- a/arch/x86/include/asm/syscalls.h +++ b/arch/x86/include/asm/syscalls.h @@ -8,42 +8,8 @@ #ifndef _ASM_X86_SYSCALLS_H #define _ASM_X86_SYSCALLS_H -#include <linux/compiler.h> -#include <linux/linkage.h> -#include <linux/signal.h> -#include <linux/types.h> - /* Common in X86_32 and X86_64 */ /* kernel/ioport.c */ long ksys_ioperm(unsigned long from, unsigned long num, int turn_on); -#ifdef CONFIG_X86_32 -/* - * These definitions are only valid on pure 32-bit systems; x86-64 uses a - * different syscall calling convention - */ -asmlinkage long sys_ioperm(unsigned long, unsigned long, int); -asmlinkage long sys_iopl(unsigned int); - -/* kernel/ldt.c */ -asmlinkage long sys_modify_ldt(int, void __user *, unsigned long); - -/* kernel/signal.c */ -asmlinkage long sys_rt_sigreturn(void); - -/* kernel/tls.c */ -asmlinkage long sys_set_thread_area(struct user_desc __user *); -asmlinkage long sys_get_thread_area(struct user_desc __user *); - -/* X86_32 only */ - -/* kernel/signal.c */ -asmlinkage long sys_sigreturn(void); - -/* kernel/vm86_32.c */ -struct vm86_struct; -asmlinkage long sys_vm86old(struct vm86_struct __user *); -asmlinkage long sys_vm86(unsigned long, unsigned long); - -#endif /* CONFIG_X86_32 */ #endif /* _ASM_X86_SYSCALLS_H */ diff --git a/arch/x86/include/asm/thread_info.h b/arch/x86/include/asm/thread_info.h index cf4327986e98..8de8ceccb8bc 100644 --- a/arch/x86/include/asm/thread_info.h +++ b/arch/x86/include/asm/thread_info.h @@ -92,7 +92,7 @@ struct thread_info { #define TIF_NOCPUID 15 /* CPUID is not accessible in userland */ #define TIF_NOTSC 16 /* TSC is not accessible in userland */ #define TIF_IA32 17 /* IA32 compatibility process */ -#define TIF_NOHZ 19 /* in adaptive nohz mode */ +#define TIF_SLD 18 /* Restore split lock detection on context switch */ #define TIF_MEMDIE 20 /* is terminating due to OOM killer */ #define TIF_POLLING_NRFLAG 21 /* idle is polling for TIF_NEED_RESCHED */ #define TIF_IO_BITMAP 22 /* uses I/O bitmap */ @@ -122,7 +122,7 @@ struct thread_info { #define _TIF_NOCPUID (1 << TIF_NOCPUID) #define _TIF_NOTSC (1 << TIF_NOTSC) #define _TIF_IA32 (1 << TIF_IA32) -#define _TIF_NOHZ (1 << TIF_NOHZ) +#define _TIF_SLD (1 << TIF_SLD) #define _TIF_POLLING_NRFLAG (1 << TIF_POLLING_NRFLAG) #define _TIF_IO_BITMAP (1 << TIF_IO_BITMAP) #define _TIF_FORCED_TF (1 << TIF_FORCED_TF) @@ -133,19 +133,15 @@ struct thread_info { #define _TIF_X32 (1 << TIF_X32) #define _TIF_FSCHECK (1 << TIF_FSCHECK) -/* - * work to do in syscall_trace_enter(). Also includes TIF_NOHZ for - * enter_from_user_mode() - */ +/* Work to do before invoking the actual syscall. */ #define _TIF_WORK_SYSCALL_ENTRY \ (_TIF_SYSCALL_TRACE | _TIF_SYSCALL_EMU | _TIF_SYSCALL_AUDIT | \ - _TIF_SECCOMP | _TIF_SYSCALL_TRACEPOINT | \ - _TIF_NOHZ) + _TIF_SECCOMP | _TIF_SYSCALL_TRACEPOINT) /* flags to check in __switch_to() */ #define _TIF_WORK_CTXSW_BASE \ (_TIF_NOCPUID | _TIF_NOTSC | _TIF_BLOCKSTEP | \ - _TIF_SSBD | _TIF_SPEC_FORCE_UPDATE) + _TIF_SSBD | _TIF_SPEC_FORCE_UPDATE | _TIF_SLD) /* * Avoid calls to __switch_to_xtra() on UP as STIBP is not evaluated. diff --git a/arch/x86/include/asm/topology.h b/arch/x86/include/asm/topology.h index 4b14d2318251..79d8d5496330 100644 --- a/arch/x86/include/asm/topology.h +++ b/arch/x86/include/asm/topology.h @@ -193,4 +193,29 @@ static inline void sched_clear_itmt_support(void) } #endif /* CONFIG_SCHED_MC_PRIO */ +#ifdef CONFIG_SMP +#include <asm/cpufeature.h> + +DECLARE_STATIC_KEY_FALSE(arch_scale_freq_key); + +#define arch_scale_freq_invariant() static_branch_likely(&arch_scale_freq_key) + +DECLARE_PER_CPU(unsigned long, arch_freq_scale); + +static inline long arch_scale_freq_capacity(int cpu) +{ + return per_cpu(arch_freq_scale, cpu); +} +#define arch_scale_freq_capacity arch_scale_freq_capacity + +extern void arch_scale_freq_tick(void); +#define arch_scale_freq_tick arch_scale_freq_tick + +extern void arch_set_max_freq_ratio(bool turbo_disabled); +#else +static inline void arch_set_max_freq_ratio(bool turbo_disabled) +{ +} +#endif + #endif /* _ASM_X86_TOPOLOGY_H */ diff --git a/arch/x86/include/asm/traps.h b/arch/x86/include/asm/traps.h index ffa0dc8a535e..c26a7e1d8a2c 100644 --- a/arch/x86/include/asm/traps.h +++ b/arch/x86/include/asm/traps.h @@ -76,27 +76,24 @@ dotraplinkage void do_coprocessor_segment_overrun(struct pt_regs *regs, long err dotraplinkage void do_invalid_TSS(struct pt_regs *regs, long error_code); dotraplinkage void do_segment_not_present(struct pt_regs *regs, long error_code); dotraplinkage void do_stack_segment(struct pt_regs *regs, long error_code); -#ifdef CONFIG_X86_64 -dotraplinkage void do_double_fault(struct pt_regs *regs, long error_code, unsigned long address); -asmlinkage __visible notrace struct pt_regs *sync_regs(struct pt_regs *eregs); -asmlinkage __visible notrace -struct bad_iret_stack *fixup_bad_iret(struct bad_iret_stack *s); -void __init trap_init(void); -#endif dotraplinkage void do_general_protection(struct pt_regs *regs, long error_code); dotraplinkage void do_page_fault(struct pt_regs *regs, unsigned long error_code, unsigned long address); dotraplinkage void do_spurious_interrupt_bug(struct pt_regs *regs, long error_code); dotraplinkage void do_coprocessor_error(struct pt_regs *regs, long error_code); dotraplinkage void do_alignment_check(struct pt_regs *regs, long error_code); -#ifdef CONFIG_X86_MCE -dotraplinkage void do_machine_check(struct pt_regs *regs, long error_code); -#endif dotraplinkage void do_simd_coprocessor_error(struct pt_regs *regs, long error_code); #ifdef CONFIG_X86_32 dotraplinkage void do_iret_error(struct pt_regs *regs, long error_code); #endif dotraplinkage void do_mce(struct pt_regs *regs, long error_code); +#ifdef CONFIG_X86_64 +asmlinkage __visible notrace struct pt_regs *sync_regs(struct pt_regs *eregs); +asmlinkage __visible notrace +struct bad_iret_stack *fixup_bad_iret(struct bad_iret_stack *s); +void __init trap_init(void); +#endif + static inline int get_si_code(unsigned long condition) { if (condition & DR_STEP) diff --git a/arch/x86/include/asm/uaccess.h b/arch/x86/include/asm/uaccess.h index 61d93f062a36..c8247a84244b 100644 --- a/arch/x86/include/asm/uaccess.h +++ b/arch/x86/include/asm/uaccess.h @@ -193,23 +193,12 @@ __typeof__(__builtin_choose_expr(sizeof(x) > sizeof(0UL), 0ULL, 0UL)) : : "A" (x), "r" (addr) \ : : label) -#define __put_user_asm_ex_u64(x, addr) \ - asm volatile("\n" \ - "1: movl %%eax,0(%1)\n" \ - "2: movl %%edx,4(%1)\n" \ - "3:" \ - _ASM_EXTABLE_EX(1b, 2b) \ - _ASM_EXTABLE_EX(2b, 3b) \ - : : "A" (x), "r" (addr)) - #define __put_user_x8(x, ptr, __ret_pu) \ asm volatile("call __put_user_8" : "=a" (__ret_pu) \ : "A" ((typeof(*(ptr)))(x)), "c" (ptr) : "ebx") #else #define __put_user_goto_u64(x, ptr, label) \ __put_user_goto(x, ptr, "q", "", "er", label) -#define __put_user_asm_ex_u64(x, addr) \ - __put_user_asm_ex(x, addr, "q", "", "er") #define __put_user_x8(x, ptr, __ret_pu) __put_user_x(8, x, ptr, __ret_pu) #endif @@ -289,31 +278,6 @@ do { \ } \ } while (0) -/* - * This doesn't do __uaccess_begin/end - the exception handling - * around it must do that. - */ -#define __put_user_size_ex(x, ptr, size) \ -do { \ - __chk_user_ptr(ptr); \ - switch (size) { \ - case 1: \ - __put_user_asm_ex(x, ptr, "b", "b", "iq"); \ - break; \ - case 2: \ - __put_user_asm_ex(x, ptr, "w", "w", "ir"); \ - break; \ - case 4: \ - __put_user_asm_ex(x, ptr, "l", "k", "ir"); \ - break; \ - case 8: \ - __put_user_asm_ex_u64((__typeof__(*ptr))(x), ptr); \ - break; \ - default: \ - __put_user_bad(); \ - } \ -} while (0) - #ifdef CONFIG_X86_32 #define __get_user_asm_u64(x, ptr, retval, errret) \ ({ \ @@ -335,12 +299,9 @@ do { \ "i" (errret), "0" (retval)); \ }) -#define __get_user_asm_ex_u64(x, ptr) (x) = __get_user_bad() #else #define __get_user_asm_u64(x, ptr, retval, errret) \ __get_user_asm(x, ptr, retval, "q", "", "=r", errret) -#define __get_user_asm_ex_u64(x, ptr) \ - __get_user_asm_ex(x, ptr, "q", "", "=r") #endif #define __get_user_size(x, ptr, size, retval, errret) \ @@ -378,53 +339,6 @@ do { \ : "=r" (err), ltype(x) \ : "m" (__m(addr)), "i" (errret), "0" (err)) -#define __get_user_asm_nozero(x, addr, err, itype, rtype, ltype, errret) \ - asm volatile("\n" \ - "1: mov"itype" %2,%"rtype"1\n" \ - "2:\n" \ - ".section .fixup,\"ax\"\n" \ - "3: mov %3,%0\n" \ - " jmp 2b\n" \ - ".previous\n" \ - _ASM_EXTABLE_UA(1b, 3b) \ - : "=r" (err), ltype(x) \ - : "m" (__m(addr)), "i" (errret), "0" (err)) - -/* - * This doesn't do __uaccess_begin/end - the exception handling - * around it must do that. - */ -#define __get_user_size_ex(x, ptr, size) \ -do { \ - __chk_user_ptr(ptr); \ - switch (size) { \ - case 1: \ - __get_user_asm_ex(x, ptr, "b", "b", "=q"); \ - break; \ - case 2: \ - __get_user_asm_ex(x, ptr, "w", "w", "=r"); \ - break; \ - case 4: \ - __get_user_asm_ex(x, ptr, "l", "k", "=r"); \ - break; \ - case 8: \ - __get_user_asm_ex_u64(x, ptr); \ - break; \ - default: \ - (x) = __get_user_bad(); \ - } \ -} while (0) - -#define __get_user_asm_ex(x, addr, itype, rtype, ltype) \ - asm volatile("1: mov"itype" %1,%"rtype"0\n" \ - "2:\n" \ - ".section .fixup,\"ax\"\n" \ - "3:xor"itype" %"rtype"0,%"rtype"0\n" \ - " jmp 2b\n" \ - ".previous\n" \ - _ASM_EXTABLE_EX(1b, 3b) \ - : ltype(x) : "m" (__m(addr))) - #define __put_user_nocheck(x, ptr, size) \ ({ \ __label__ __pu_label; \ @@ -480,29 +394,6 @@ struct __large_struct { unsigned long buf[100]; }; retval = __put_user_failed(x, addr, itype, rtype, ltype, errret); \ } while (0) -#define __put_user_asm_ex(x, addr, itype, rtype, ltype) \ - asm volatile("1: mov"itype" %"rtype"0,%1\n" \ - "2:\n" \ - _ASM_EXTABLE_EX(1b, 2b) \ - : : ltype(x), "m" (__m(addr))) - -/* - * uaccess_try and catch - */ -#define uaccess_try do { \ - current->thread.uaccess_err = 0; \ - __uaccess_begin(); \ - barrier(); - -#define uaccess_try_nospec do { \ - current->thread.uaccess_err = 0; \ - __uaccess_begin_nospec(); \ - -#define uaccess_catch(err) \ - __uaccess_end(); \ - (err) |= (current->thread.uaccess_err ? -EFAULT : 0); \ -} while (0) - /** * __get_user - Get a simple variable from user space, with less checking. * @x: Variable to store result. @@ -552,28 +443,6 @@ struct __large_struct { unsigned long buf[100]; }; #define __put_user(x, ptr) \ __put_user_nocheck((__typeof__(*(ptr)))(x), (ptr), sizeof(*(ptr))) -/* - * {get|put}_user_try and catch - * - * get_user_try { - * get_user_ex(...); - * } get_user_catch(err) - */ -#define get_user_try uaccess_try_nospec -#define get_user_catch(err) uaccess_catch(err) - -#define get_user_ex(x, ptr) do { \ - unsigned long __gue_val; \ - __get_user_size_ex((__gue_val), (ptr), (sizeof(*(ptr)))); \ - (x) = (__force __typeof__(*(ptr)))__gue_val; \ -} while (0) - -#define put_user_try uaccess_try -#define put_user_catch(err) uaccess_catch(err) - -#define put_user_ex(x, ptr) \ - __put_user_size_ex((__typeof__(*(ptr)))(x), (ptr), sizeof(*(ptr))) - extern unsigned long copy_from_user_nmi(void *to, const void __user *from, unsigned long n); extern __must_check long @@ -584,99 +453,6 @@ extern __must_check long strnlen_user(const char __user *str, long n); unsigned long __must_check clear_user(void __user *mem, unsigned long len); unsigned long __must_check __clear_user(void __user *mem, unsigned long len); -extern void __cmpxchg_wrong_size(void) - __compiletime_error("Bad argument size for cmpxchg"); - -#define __user_atomic_cmpxchg_inatomic(uval, ptr, old, new, size) \ -({ \ - int __ret = 0; \ - __typeof__(*(ptr)) __old = (old); \ - __typeof__(*(ptr)) __new = (new); \ - __uaccess_begin_nospec(); \ - switch (size) { \ - case 1: \ - { \ - asm volatile("\n" \ - "1:\t" LOCK_PREFIX "cmpxchgb %4, %2\n" \ - "2:\n" \ - "\t.section .fixup, \"ax\"\n" \ - "3:\tmov %3, %0\n" \ - "\tjmp 2b\n" \ - "\t.previous\n" \ - _ASM_EXTABLE_UA(1b, 3b) \ - : "+r" (__ret), "=a" (__old), "+m" (*(ptr)) \ - : "i" (-EFAULT), "q" (__new), "1" (__old) \ - : "memory" \ - ); \ - break; \ - } \ - case 2: \ - { \ - asm volatile("\n" \ - "1:\t" LOCK_PREFIX "cmpxchgw %4, %2\n" \ - "2:\n" \ - "\t.section .fixup, \"ax\"\n" \ - "3:\tmov %3, %0\n" \ - "\tjmp 2b\n" \ - "\t.previous\n" \ - _ASM_EXTABLE_UA(1b, 3b) \ - : "+r" (__ret), "=a" (__old), "+m" (*(ptr)) \ - : "i" (-EFAULT), "r" (__new), "1" (__old) \ - : "memory" \ - ); \ - break; \ - } \ - case 4: \ - { \ - asm volatile("\n" \ - "1:\t" LOCK_PREFIX "cmpxchgl %4, %2\n" \ - "2:\n" \ - "\t.section .fixup, \"ax\"\n" \ - "3:\tmov %3, %0\n" \ - "\tjmp 2b\n" \ - "\t.previous\n" \ - _ASM_EXTABLE_UA(1b, 3b) \ - : "+r" (__ret), "=a" (__old), "+m" (*(ptr)) \ - : "i" (-EFAULT), "r" (__new), "1" (__old) \ - : "memory" \ - ); \ - break; \ - } \ - case 8: \ - { \ - if (!IS_ENABLED(CONFIG_X86_64)) \ - __cmpxchg_wrong_size(); \ - \ - asm volatile("\n" \ - "1:\t" LOCK_PREFIX "cmpxchgq %4, %2\n" \ - "2:\n" \ - "\t.section .fixup, \"ax\"\n" \ - "3:\tmov %3, %0\n" \ - "\tjmp 2b\n" \ - "\t.previous\n" \ - _ASM_EXTABLE_UA(1b, 3b) \ - : "+r" (__ret), "=a" (__old), "+m" (*(ptr)) \ - : "i" (-EFAULT), "r" (__new), "1" (__old) \ - : "memory" \ - ); \ - break; \ - } \ - default: \ - __cmpxchg_wrong_size(); \ - } \ - __uaccess_end(); \ - *(uval) = __old; \ - __ret; \ -}) - -#define user_atomic_cmpxchg_inatomic(uval, ptr, old, new) \ -({ \ - access_ok((ptr), sizeof(*(ptr))) ? \ - __user_atomic_cmpxchg_inatomic((uval), (ptr), \ - (old), (new), sizeof(*(ptr))) : \ - -EFAULT; \ -}) - /* * movsl can be slow when source and dest are not both 8-byte aligned */ @@ -695,15 +471,6 @@ extern struct movsl_mask { #endif /* - * We rely on the nested NMI work to allow atomic faults from the NMI path; the - * nested NMI paths are careful to preserve CR2. - * - * Caller must use pagefault_enable/disable, or run in interrupt context, - * and also do a uaccess_ok() check - */ -#define __copy_from_user_nmi __copy_from_user_inatomic - -/* * The "unsafe" user accesses aren't really "unsafe", but the naming * is a big fat warning: you have to not only do the access_ok() * checking before using them, but you have to surround them with the diff --git a/arch/x86/include/asm/uaccess_32.h b/arch/x86/include/asm/uaccess_32.h index ba2dc1930630..388a40660c7b 100644 --- a/arch/x86/include/asm/uaccess_32.h +++ b/arch/x86/include/asm/uaccess_32.h @@ -23,33 +23,6 @@ raw_copy_to_user(void __user *to, const void *from, unsigned long n) static __always_inline unsigned long raw_copy_from_user(void *to, const void __user *from, unsigned long n) { - if (__builtin_constant_p(n)) { - unsigned long ret; - - switch (n) { - case 1: - ret = 0; - __uaccess_begin_nospec(); - __get_user_asm_nozero(*(u8 *)to, from, ret, - "b", "b", "=q", 1); - __uaccess_end(); - return ret; - case 2: - ret = 0; - __uaccess_begin_nospec(); - __get_user_asm_nozero(*(u16 *)to, from, ret, - "w", "w", "=r", 2); - __uaccess_end(); - return ret; - case 4: - ret = 0; - __uaccess_begin_nospec(); - __get_user_asm_nozero(*(u32 *)to, from, ret, - "l", "k", "=r", 4); - __uaccess_end(); - return ret; - } - } return __copy_user_ll(to, (__force const void *)from, n); } diff --git a/arch/x86/include/asm/uaccess_64.h b/arch/x86/include/asm/uaccess_64.h index 5cd1caa8bc65..bc10e3dc64fe 100644 --- a/arch/x86/include/asm/uaccess_64.h +++ b/arch/x86/include/asm/uaccess_64.h @@ -65,117 +65,13 @@ copy_to_user_mcsafe(void *to, const void *from, unsigned len) static __always_inline __must_check unsigned long raw_copy_from_user(void *dst, const void __user *src, unsigned long size) { - int ret = 0; - - if (!__builtin_constant_p(size)) - return copy_user_generic(dst, (__force void *)src, size); - switch (size) { - case 1: - __uaccess_begin_nospec(); - __get_user_asm_nozero(*(u8 *)dst, (u8 __user *)src, - ret, "b", "b", "=q", 1); - __uaccess_end(); - return ret; - case 2: - __uaccess_begin_nospec(); - __get_user_asm_nozero(*(u16 *)dst, (u16 __user *)src, - ret, "w", "w", "=r", 2); - __uaccess_end(); - return ret; - case 4: - __uaccess_begin_nospec(); - __get_user_asm_nozero(*(u32 *)dst, (u32 __user *)src, - ret, "l", "k", "=r", 4); - __uaccess_end(); - return ret; - case 8: - __uaccess_begin_nospec(); - __get_user_asm_nozero(*(u64 *)dst, (u64 __user *)src, - ret, "q", "", "=r", 8); - __uaccess_end(); - return ret; - case 10: - __uaccess_begin_nospec(); - __get_user_asm_nozero(*(u64 *)dst, (u64 __user *)src, - ret, "q", "", "=r", 10); - if (likely(!ret)) - __get_user_asm_nozero(*(u16 *)(8 + (char *)dst), - (u16 __user *)(8 + (char __user *)src), - ret, "w", "w", "=r", 2); - __uaccess_end(); - return ret; - case 16: - __uaccess_begin_nospec(); - __get_user_asm_nozero(*(u64 *)dst, (u64 __user *)src, - ret, "q", "", "=r", 16); - if (likely(!ret)) - __get_user_asm_nozero(*(u64 *)(8 + (char *)dst), - (u64 __user *)(8 + (char __user *)src), - ret, "q", "", "=r", 8); - __uaccess_end(); - return ret; - default: - return copy_user_generic(dst, (__force void *)src, size); - } + return copy_user_generic(dst, (__force void *)src, size); } static __always_inline __must_check unsigned long raw_copy_to_user(void __user *dst, const void *src, unsigned long size) { - int ret = 0; - - if (!__builtin_constant_p(size)) - return copy_user_generic((__force void *)dst, src, size); - switch (size) { - case 1: - __uaccess_begin(); - __put_user_asm(*(u8 *)src, (u8 __user *)dst, - ret, "b", "b", "iq", 1); - __uaccess_end(); - return ret; - case 2: - __uaccess_begin(); - __put_user_asm(*(u16 *)src, (u16 __user *)dst, - ret, "w", "w", "ir", 2); - __uaccess_end(); - return ret; - case 4: - __uaccess_begin(); - __put_user_asm(*(u32 *)src, (u32 __user *)dst, - ret, "l", "k", "ir", 4); - __uaccess_end(); - return ret; - case 8: - __uaccess_begin(); - __put_user_asm(*(u64 *)src, (u64 __user *)dst, - ret, "q", "", "er", 8); - __uaccess_end(); - return ret; - case 10: - __uaccess_begin(); - __put_user_asm(*(u64 *)src, (u64 __user *)dst, - ret, "q", "", "er", 10); - if (likely(!ret)) { - asm("":::"memory"); - __put_user_asm(4[(u16 *)src], 4 + (u16 __user *)dst, - ret, "w", "w", "ir", 2); - } - __uaccess_end(); - return ret; - case 16: - __uaccess_begin(); - __put_user_asm(*(u64 *)src, (u64 __user *)dst, - ret, "q", "", "er", 16); - if (likely(!ret)) { - asm("":::"memory"); - __put_user_asm(1[(u64 *)src], 1 + (u64 __user *)dst, - ret, "q", "", "er", 8); - } - __uaccess_end(); - return ret; - default: - return copy_user_generic((__force void *)dst, src, size); - } + return copy_user_generic((__force void *)dst, src, size); } static __always_inline __must_check diff --git a/arch/x86/include/asm/unistd.h b/arch/x86/include/asm/unistd.h index a7dd080749ce..c1c3d31b15c0 100644 --- a/arch/x86/include/asm/unistd.h +++ b/arch/x86/include/asm/unistd.h @@ -13,10 +13,13 @@ # define __ARCH_WANT_SYS_OLD_MMAP # define __ARCH_WANT_SYS_OLD_SELECT +# define __NR_ia32_syscall_max __NR_syscall_max + # else # include <asm/unistd_64.h> # include <asm/unistd_64_x32.h> +# include <asm/unistd_32_ia32.h> # define __ARCH_WANT_SYS_TIME # define __ARCH_WANT_SYS_UTIME # define __ARCH_WANT_COMPAT_SYS_PREADV64 @@ -26,6 +29,10 @@ # endif +# define NR_syscalls (__NR_syscall_max + 1) +# define X32_NR_syscalls (__NR_x32_syscall_max + 1) +# define IA32_NR_syscalls (__NR_ia32_syscall_max + 1) + # define __ARCH_WANT_NEW_STAT # define __ARCH_WANT_OLD_READDIR # define __ARCH_WANT_OLD_STAT diff --git a/arch/x86/include/asm/uv/uv_bau.h b/arch/x86/include/asm/uv/uv_bau.h index 7803114aa140..13687bf0e0a9 100644 --- a/arch/x86/include/asm/uv/uv_bau.h +++ b/arch/x86/include/asm/uv/uv_bau.h @@ -858,4 +858,6 @@ static inline int atomic_inc_unless_ge(spinlock_t *lock, atomic_t *v, int u) return 1; } +void uv_bau_message_interrupt(struct pt_regs *regs); + #endif /* _ASM_X86_UV_UV_BAU_H */ diff --git a/arch/x86/include/asm/vdso/clocksource.h b/arch/x86/include/asm/vdso/clocksource.h new file mode 100644 index 000000000000..119ac8612d89 --- /dev/null +++ b/arch/x86/include/asm/vdso/clocksource.h @@ -0,0 +1,10 @@ +/* SPDX-License-Identifier: GPL-2.0 */ +#ifndef __ASM_VDSO_CLOCKSOURCE_H +#define __ASM_VDSO_CLOCKSOURCE_H + +#define VDSO_ARCH_CLOCKMODES \ + VDSO_CLOCKMODE_TSC, \ + VDSO_CLOCKMODE_PVCLOCK, \ + VDSO_CLOCKMODE_HVCLOCK + +#endif /* __ASM_VDSO_CLOCKSOURCE_H */ diff --git a/arch/x86/include/asm/vdso/gettimeofday.h b/arch/x86/include/asm/vdso/gettimeofday.h index 6ee1f7dba34b..9a6dc9b4ec99 100644 --- a/arch/x86/include/asm/vdso/gettimeofday.h +++ b/arch/x86/include/asm/vdso/gettimeofday.h @@ -243,7 +243,7 @@ static u64 vread_hvclock(void) static inline u64 __arch_get_hw_counter(s32 clock_mode) { - if (clock_mode == VCLOCK_TSC) + if (likely(clock_mode == VDSO_CLOCKMODE_TSC)) return (u64)rdtsc_ordered(); /* * For any memory-mapped vclock type, we need to make sure that gcc @@ -252,13 +252,13 @@ static inline u64 __arch_get_hw_counter(s32 clock_mode) * question isn't enabled, which will segfault. Hence the barriers. */ #ifdef CONFIG_PARAVIRT_CLOCK - if (clock_mode == VCLOCK_PVCLOCK) { + if (clock_mode == VDSO_CLOCKMODE_PVCLOCK) { barrier(); return vread_pvclock(); } #endif #ifdef CONFIG_HYPERV_TIMER - if (clock_mode == VCLOCK_HVCLOCK) { + if (clock_mode == VDSO_CLOCKMODE_HVCLOCK) { barrier(); return vread_hvclock(); } diff --git a/arch/x86/include/asm/vdso/processor.h b/arch/x86/include/asm/vdso/processor.h new file mode 100644 index 000000000000..57b1a7034c64 --- /dev/null +++ b/arch/x86/include/asm/vdso/processor.h @@ -0,0 +1,23 @@ +/* SPDX-License-Identifier: GPL-2.0-only */ +/* + * Copyright (C) 2020 ARM Ltd. + */ +#ifndef __ASM_VDSO_PROCESSOR_H +#define __ASM_VDSO_PROCESSOR_H + +#ifndef __ASSEMBLY__ + +/* REP NOP (PAUSE) is a good thing to insert into busy-wait loops. */ +static __always_inline void rep_nop(void) +{ + asm volatile("rep; nop" ::: "memory"); +} + +static __always_inline void cpu_relax(void) +{ + rep_nop(); +} + +#endif /* __ASSEMBLY__ */ + +#endif /* __ASM_VDSO_PROCESSOR_H */ diff --git a/arch/x86/include/asm/vdso/vsyscall.h b/arch/x86/include/asm/vdso/vsyscall.h index 0026ab2123ce..be199a9b2676 100644 --- a/arch/x86/include/asm/vdso/vsyscall.h +++ b/arch/x86/include/asm/vdso/vsyscall.h @@ -10,8 +10,6 @@ #include <asm/vgtod.h> #include <asm/vvar.h> -int vclocks_used __read_mostly; - DEFINE_VVAR(struct vdso_data, _vdso_data); /* * Update the vDSO data page to keep in sync with kernel timekeeping. @@ -23,19 +21,6 @@ struct vdso_data *__x86_get_k_vdso_data(void) } #define __arch_get_k_vdso_data __x86_get_k_vdso_data -static __always_inline -int __x86_get_clock_mode(struct timekeeper *tk) -{ - int vclock_mode = tk->tkr_mono.clock->archdata.vclock_mode; - - /* Mark the new vclock used. */ - BUILD_BUG_ON(VCLOCK_MAX >= 32); - WRITE_ONCE(vclocks_used, READ_ONCE(vclocks_used) | (1 << vclock_mode)); - - return vclock_mode; -} -#define __arch_get_clock_mode __x86_get_clock_mode - /* The asm-generic header needs to be included after the definitions above */ #include <asm-generic/vdso/vsyscall.h> diff --git a/arch/x86/include/asm/vgtod.h b/arch/x86/include/asm/vgtod.h index a2638c6124ed..7aa38b2ad8a9 100644 --- a/arch/x86/include/asm/vgtod.h +++ b/arch/x86/include/asm/vgtod.h @@ -2,6 +2,11 @@ #ifndef _ASM_X86_VGTOD_H #define _ASM_X86_VGTOD_H +/* + * This check is required to prevent ARCH=um to include + * unwanted headers. + */ +#ifdef CONFIG_GENERIC_GETTIMEOFDAY #include <linux/compiler.h> #include <asm/clocksource.h> #include <vdso/datapage.h> @@ -14,11 +19,6 @@ typedef u64 gtod_long_t; #else typedef unsigned long gtod_long_t; #endif - -extern int vclocks_used; -static inline bool vclock_was_used(int vclock) -{ - return READ_ONCE(vclocks_used) & (1 << vclock); -} +#endif /* CONFIG_GENERIC_GETTIMEOFDAY */ #endif /* _ASM_X86_VGTOD_H */ diff --git a/arch/x86/kernel/Makefile b/arch/x86/kernel/Makefile index 9b294c13809a..bb5abfef0256 100644 --- a/arch/x86/kernel/Makefile +++ b/arch/x86/kernel/Makefile @@ -28,7 +28,6 @@ KASAN_SANITIZE_dumpstack_$(BITS).o := n KASAN_SANITIZE_stacktrace.o := n KASAN_SANITIZE_paravirt.o := n -OBJECT_FILES_NON_STANDARD_relocate_kernel_$(BITS).o := y OBJECT_FILES_NON_STANDARD_test_nx.o := y OBJECT_FILES_NON_STANDARD_paravirt_patch.o := y @@ -53,6 +52,8 @@ obj-y += setup.o x86_init.o i8259.o irqinit.o obj-$(CONFIG_JUMP_LABEL) += jump_label.o obj-$(CONFIG_IRQ_WORK) += irq_work.o obj-y += probe_roms.o +obj-$(CONFIG_X86_32) += sys_ia32.o +obj-$(CONFIG_IA32_EMULATION) += sys_ia32.o obj-$(CONFIG_X86_64) += sys_x86_64.o obj-$(CONFIG_X86_ESPFIX64) += espfix_64.o obj-$(CONFIG_SYSFS) += ksysfs.o diff --git a/arch/x86/kernel/acpi/boot.c b/arch/x86/kernel/acpi/boot.c index 04205ce127a1..1ae5439a9a85 100644 --- a/arch/x86/kernel/acpi/boot.c +++ b/arch/x86/kernel/acpi/boot.c @@ -45,6 +45,7 @@ EXPORT_SYMBOL(acpi_disabled); #define PREFIX "ACPI: " int acpi_noirq; /* skip ACPI IRQ initialization */ +int acpi_nobgrt; /* skip ACPI BGRT */ int acpi_pci_disabled; /* skip ACPI PCI scan and IRQ initialization */ EXPORT_SYMBOL(acpi_pci_disabled); @@ -1619,7 +1620,7 @@ int __init acpi_boot_init(void) acpi_process_madt(); acpi_table_parse(ACPI_SIG_HPET, acpi_parse_hpet); - if (IS_ENABLED(CONFIG_ACPI_BGRT)) + if (IS_ENABLED(CONFIG_ACPI_BGRT) && !acpi_nobgrt) acpi_table_parse(ACPI_SIG_BGRT, acpi_parse_bgrt); if (!acpi_noirq) @@ -1671,6 +1672,13 @@ static int __init parse_acpi(char *arg) } early_param("acpi", parse_acpi); +static int __init parse_acpi_bgrt(char *arg) +{ + acpi_nobgrt = true; + return 0; +} +early_param("bgrt_disable", parse_acpi_bgrt); + /* FIXME: Using pci= for an ACPI parameter is a travesty. */ static int __init parse_pci(char *arg) { @@ -1740,7 +1748,7 @@ int __acpi_acquire_global_lock(unsigned int *lock) new = (((old & ~0x3) + 2) + ((old >> 1) & 0x1)); val = cmpxchg(lock, old, new); } while (unlikely (val != old)); - return (new < 3) ? -1 : 0; + return ((new & 0x3) < 3) ? -1 : 0; } int __acpi_release_global_lock(unsigned int *lock) diff --git a/arch/x86/kernel/acpi/sleep.c b/arch/x86/kernel/acpi/sleep.c index 26b7256f590f..ed3b04483972 100644 --- a/arch/x86/kernel/acpi/sleep.c +++ b/arch/x86/kernel/acpi/sleep.c @@ -43,7 +43,7 @@ unsigned long acpi_get_wakeup_address(void) * * Wrapper around acpi_enter_sleep_state() to be called by assmebly. */ -acpi_status asmlinkage __visible x86_acpi_enter_sleep_state(u8 state) +asmlinkage acpi_status __visible x86_acpi_enter_sleep_state(u8 state) { return acpi_enter_sleep_state(state); } diff --git a/arch/x86/kernel/acpi/sleep.h b/arch/x86/kernel/acpi/sleep.h index d06c2079b6c1..171a40c74db6 100644 --- a/arch/x86/kernel/acpi/sleep.h +++ b/arch/x86/kernel/acpi/sleep.h @@ -19,4 +19,4 @@ extern void do_suspend_lowlevel(void); extern int x86_acpi_suspend_lowlevel(void); -acpi_status asmlinkage x86_acpi_enter_sleep_state(u8 state); +asmlinkage acpi_status x86_acpi_enter_sleep_state(u8 state); diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c index 15ac0d5f4b40..7867dfb3963e 100644 --- a/arch/x86/kernel/alternative.c +++ b/arch/x86/kernel/alternative.c @@ -1167,8 +1167,8 @@ static void text_poke_bp_batch(struct text_poke_loc *tp, unsigned int nr_entries atomic_cond_read_acquire(&desc.refs, !VAL); } -void text_poke_loc_init(struct text_poke_loc *tp, void *addr, - const void *opcode, size_t len, const void *emulate) +static void text_poke_loc_init(struct text_poke_loc *tp, void *addr, + const void *opcode, size_t len, const void *emulate) { struct insn insn; diff --git a/arch/x86/kernel/amd_nb.c b/arch/x86/kernel/amd_nb.c index 69aed0ebbdfc..b6b3297851f3 100644 --- a/arch/x86/kernel/amd_nb.c +++ b/arch/x86/kernel/amd_nb.c @@ -36,10 +36,9 @@ static const struct pci_device_id amd_root_ids[] = { {} }; - #define PCI_DEVICE_ID_AMD_CNB17H_F4 0x1704 -const struct pci_device_id amd_nb_misc_ids[] = { +static const struct pci_device_id amd_nb_misc_ids[] = { { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_K8_NB_MISC) }, { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_10H_NB_MISC) }, { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_15H_NB_F3) }, @@ -56,7 +55,6 @@ const struct pci_device_id amd_nb_misc_ids[] = { { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_19H_DF_F3) }, {} }; -EXPORT_SYMBOL_GPL(amd_nb_misc_ids); static const struct pci_device_id amd_nb_link_ids[] = { { PCI_DEVICE(PCI_VENDOR_ID_AMD, PCI_DEVICE_ID_AMD_15H_NB_F4) }, diff --git a/arch/x86/kernel/apic/apic.c b/arch/x86/kernel/apic/apic.c index 5f973fed3c9f..81b9c63dae1b 100644 --- a/arch/x86/kernel/apic/apic.c +++ b/arch/x86/kernel/apic/apic.c @@ -546,12 +546,6 @@ static struct clock_event_device lapic_clockevent = { }; static DEFINE_PER_CPU(struct clock_event_device, lapic_events); -#define DEADLINE_MODEL_MATCH_FUNC(model, func) \ - { X86_VENDOR_INTEL, 6, model, X86_FEATURE_ANY, (unsigned long)&func } - -#define DEADLINE_MODEL_MATCH_REV(model, rev) \ - { X86_VENDOR_INTEL, 6, model, X86_FEATURE_ANY, (unsigned long)rev } - static u32 hsx_deadline_rev(void) { switch (boot_cpu_data.x86_stepping) { @@ -588,23 +582,23 @@ static u32 skx_deadline_rev(void) } static const struct x86_cpu_id deadline_match[] = { - DEADLINE_MODEL_MATCH_FUNC( INTEL_FAM6_HASWELL_X, hsx_deadline_rev), - DEADLINE_MODEL_MATCH_REV ( INTEL_FAM6_BROADWELL_X, 0x0b000020), - DEADLINE_MODEL_MATCH_FUNC( INTEL_FAM6_BROADWELL_D, bdx_deadline_rev), - DEADLINE_MODEL_MATCH_FUNC( INTEL_FAM6_SKYLAKE_X, skx_deadline_rev), + X86_MATCH_INTEL_FAM6_MODEL( HASWELL_X, &hsx_deadline_rev), + X86_MATCH_INTEL_FAM6_MODEL( BROADWELL_X, 0x0b000020), + X86_MATCH_INTEL_FAM6_MODEL( BROADWELL_D, &bdx_deadline_rev), + X86_MATCH_INTEL_FAM6_MODEL( SKYLAKE_X, &skx_deadline_rev), - DEADLINE_MODEL_MATCH_REV ( INTEL_FAM6_HASWELL, 0x22), - DEADLINE_MODEL_MATCH_REV ( INTEL_FAM6_HASWELL_L, 0x20), - DEADLINE_MODEL_MATCH_REV ( INTEL_FAM6_HASWELL_G, 0x17), + X86_MATCH_INTEL_FAM6_MODEL( HASWELL, 0x22), + X86_MATCH_INTEL_FAM6_MODEL( HASWELL_L, 0x20), + X86_MATCH_INTEL_FAM6_MODEL( HASWELL_G, 0x17), - DEADLINE_MODEL_MATCH_REV ( INTEL_FAM6_BROADWELL, 0x25), - DEADLINE_MODEL_MATCH_REV ( INTEL_FAM6_BROADWELL_G, 0x17), + X86_MATCH_INTEL_FAM6_MODEL( BROADWELL, 0x25), + X86_MATCH_INTEL_FAM6_MODEL( BROADWELL_G, 0x17), - DEADLINE_MODEL_MATCH_REV ( INTEL_FAM6_SKYLAKE_L, 0xb2), - DEADLINE_MODEL_MATCH_REV ( INTEL_FAM6_SKYLAKE, 0xb2), + X86_MATCH_INTEL_FAM6_MODEL( SKYLAKE_L, 0xb2), + X86_MATCH_INTEL_FAM6_MODEL( SKYLAKE, 0xb2), - DEADLINE_MODEL_MATCH_REV ( INTEL_FAM6_KABYLAKE_L, 0x52), - DEADLINE_MODEL_MATCH_REV ( INTEL_FAM6_KABYLAKE, 0x52), + X86_MATCH_INTEL_FAM6_MODEL( KABYLAKE_L, 0x52), + X86_MATCH_INTEL_FAM6_MODEL( KABYLAKE, 0x52), {}, }; diff --git a/arch/x86/kernel/apic/vector.c b/arch/x86/kernel/apic/vector.c index 2c5676b0a6e7..67768e54438b 100644 --- a/arch/x86/kernel/apic/vector.c +++ b/arch/x86/kernel/apic/vector.c @@ -557,6 +557,12 @@ static int x86_vector_alloc_irqs(struct irq_domain *domain, unsigned int virq, irqd->hwirq = virq + i; irqd_set_single_target(irqd); /* + * Prevent that any of these interrupts is invoked in + * non interrupt context via e.g. generic_handle_irq() + * as that can corrupt the affinity move state. + */ + irqd_set_handle_enforce_irqctx(irqd); + /* * Legacy vectors are already assigned when the IOAPIC * takes them over. They stay on the same vector. This is * required for check_timer() to work correctly as it might @@ -838,13 +844,15 @@ static void free_moved_vector(struct apic_chip_data *apicd) bool managed = apicd->is_managed; /* - * This should never happen. Managed interrupts are not - * migrated except on CPU down, which does not involve the - * cleanup vector. But try to keep the accounting correct - * nevertheless. + * Managed interrupts are usually not migrated away + * from an online CPU, but CPU isolation 'managed_irq' + * can make that happen. + * 1) Activation does not take the isolation into account + * to keep the code simple + * 2) Migration away from an isolated CPU can happen when + * a non-isolated CPU which is in the calculated + * affinity mask comes online. */ - WARN_ON_ONCE(managed); - trace_vector_free_moved(apicd->irq, cpu, vector, managed); irq_matrix_free(vector_matrix, cpu, vector, managed); per_cpu(vector_irq, cpu)[vector] = VECTOR_UNUSED; diff --git a/arch/x86/kernel/asm-offsets.c b/arch/x86/kernel/asm-offsets.c index 5c7ee3df4d0b..3ca07ad552ae 100644 --- a/arch/x86/kernel/asm-offsets.c +++ b/arch/x86/kernel/asm-offsets.c @@ -88,7 +88,6 @@ static void __used common(void) OFFSET(BP_kernel_alignment, boot_params, hdr.kernel_alignment); OFFSET(BP_init_size, boot_params, hdr.init_size); OFFSET(BP_pref_address, boot_params, hdr.pref_address); - OFFSET(BP_code32_start, boot_params, hdr.code32_start); BLANK(); DEFINE(PTREGS_SIZE, sizeof(struct pt_regs)); diff --git a/arch/x86/kernel/asm-offsets_32.c b/arch/x86/kernel/asm-offsets_32.c index 82826f2275cc..6e043f295a60 100644 --- a/arch/x86/kernel/asm-offsets_32.c +++ b/arch/x86/kernel/asm-offsets_32.c @@ -3,12 +3,9 @@ # error "Please do not build this file directly, build asm-offsets.c instead" #endif -#include <asm/ucontext.h> +#include <linux/efi.h> -#define __SYSCALL_I386(nr, sym, qual) [nr] = 1, -static char syscalls[] = { -#include <asm/syscalls_32.h> -}; +#include <asm/ucontext.h> /* workaround for a warning with -Wmissing-prototypes */ void foo(void); @@ -62,6 +59,5 @@ void foo(void) #endif BLANK(); - DEFINE(__NR_syscall_max, sizeof(syscalls) - 1); - DEFINE(NR_syscalls, sizeof(syscalls)); + DEFINE(EFI_svam, offsetof(efi_runtime_services_t, set_virtual_address_map)); } diff --git a/arch/x86/kernel/asm-offsets_64.c b/arch/x86/kernel/asm-offsets_64.c index 24d2fde30d00..c2a47016f243 100644 --- a/arch/x86/kernel/asm-offsets_64.c +++ b/arch/x86/kernel/asm-offsets_64.c @@ -5,30 +5,6 @@ #include <asm/ia32.h> -#define __SYSCALL_64(nr, sym, qual) [nr] = 1, -#define __SYSCALL_X32(nr, sym, qual) -static char syscalls_64[] = { -#include <asm/syscalls_64.h> -}; -#undef __SYSCALL_64 -#undef __SYSCALL_X32 - -#ifdef CONFIG_X86_X32_ABI -#define __SYSCALL_64(nr, sym, qual) -#define __SYSCALL_X32(nr, sym, qual) [nr] = 1, -static char syscalls_x32[] = { -#include <asm/syscalls_64.h> -}; -#undef __SYSCALL_64 -#undef __SYSCALL_X32 -#endif - -#define __SYSCALL_I386(nr, sym, qual) [nr] = 1, -static char syscalls_ia32[] = { -#include <asm/syscalls_32.h> -}; -#undef __SYSCALL_I386 - #if defined(CONFIG_KVM_GUEST) && defined(CONFIG_PARAVIRT_SPINLOCKS) #include <asm/kvm_para.h> #endif @@ -90,17 +66,5 @@ int main(void) DEFINE(stack_canary_offset, offsetof(struct fixed_percpu_data, stack_canary)); BLANK(); #endif - - DEFINE(__NR_syscall_max, sizeof(syscalls_64) - 1); - DEFINE(NR_syscalls, sizeof(syscalls_64)); - -#ifdef CONFIG_X86_X32_ABI - DEFINE(__NR_syscall_x32_max, sizeof(syscalls_x32) - 1); - DEFINE(X32_NR_syscalls, sizeof(syscalls_x32)); -#endif - - DEFINE(__NR_syscall_compat_max, sizeof(syscalls_ia32) - 1); - DEFINE(IA32_NR_syscalls, sizeof(syscalls_ia32)); - return 0; } diff --git a/arch/x86/kernel/cpu/amd.c b/arch/x86/kernel/cpu/amd.c index 1f875fbe1384..547ad7bbf0e0 100644 --- a/arch/x86/kernel/cpu/amd.c +++ b/arch/x86/kernel/cpu/amd.c @@ -394,6 +394,35 @@ static void amd_detect_cmp(struct cpuinfo_x86 *c) per_cpu(cpu_llc_id, cpu) = c->phys_proc_id; } +static void amd_detect_ppin(struct cpuinfo_x86 *c) +{ + unsigned long long val; + + if (!cpu_has(c, X86_FEATURE_AMD_PPIN)) + return; + + /* When PPIN is defined in CPUID, still need to check PPIN_CTL MSR */ + if (rdmsrl_safe(MSR_AMD_PPIN_CTL, &val)) + goto clear_ppin; + + /* PPIN is locked in disabled mode, clear feature bit */ + if ((val & 3UL) == 1UL) + goto clear_ppin; + + /* If PPIN is disabled, try to enable it */ + if (!(val & 2UL)) { + wrmsrl_safe(MSR_AMD_PPIN_CTL, val | 2UL); + rdmsrl_safe(MSR_AMD_PPIN_CTL, &val); + } + + /* If PPIN_EN bit is 1, return from here; otherwise fall through */ + if (val & 2UL) + return; + +clear_ppin: + clear_cpu_cap(c, X86_FEATURE_AMD_PPIN); +} + u16 amd_get_nb_id(int cpu) { return per_cpu(cpu_llc_id, cpu); @@ -926,7 +955,8 @@ static void init_amd(struct cpuinfo_x86 *c) case 0x12: init_amd_ln(c); break; case 0x15: init_amd_bd(c); break; case 0x16: init_amd_jg(c); break; - case 0x17: init_amd_zn(c); break; + case 0x17: fallthrough; + case 0x19: init_amd_zn(c); break; } /* @@ -941,6 +971,7 @@ static void init_amd(struct cpuinfo_x86 *c) amd_detect_cmp(c); amd_get_topology(c); srat_detect_node(c); + amd_detect_ppin(c); init_amd_cacheinfo(c); diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c index 52c9bfbbdb2a..bed0cb83fe24 100644 --- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86/kernel/cpu/common.c @@ -445,7 +445,7 @@ static __always_inline void setup_pku(struct cpuinfo_x86 *c) * cpuid bit to be set. We need to ensure that we * update that bit in this CPU's "cpu_info". */ - get_cpu_cap(c); + set_cpu_cap(c, X86_FEATURE_OSPKE); } #ifdef CONFIG_X86_INTEL_MEMORY_PROTECTION_KEYS @@ -1008,8 +1008,8 @@ static void identify_cpu_without_cpuid(struct cpuinfo_x86 *c) #define NO_ITLB_MULTIHIT BIT(7) #define NO_SPECTRE_V2 BIT(8) -#define VULNWL(_vendor, _family, _model, _whitelist) \ - { X86_VENDOR_##_vendor, _family, _model, X86_FEATURE_ANY, _whitelist } +#define VULNWL(vendor, family, model, whitelist) \ + X86_MATCH_VENDOR_FAM_MODEL(vendor, family, model, whitelist) #define VULNWL_INTEL(model, whitelist) \ VULNWL(INTEL, 6, INTEL_FAM6_##model, whitelist) @@ -1224,6 +1224,8 @@ static void __init early_identify_cpu(struct cpuinfo_x86 *c) cpu_set_bug_bits(c); + cpu_set_core_cap_bits(c); + fpu__init_system(c); #ifdef CONFIG_X86_32 diff --git a/arch/x86/kernel/cpu/feat_ctl.c b/arch/x86/kernel/cpu/feat_ctl.c index 0268185bef94..29a3bedabd06 100644 --- a/arch/x86/kernel/cpu/feat_ctl.c +++ b/arch/x86/kernel/cpu/feat_ctl.c @@ -5,6 +5,7 @@ #include <asm/msr-index.h> #include <asm/processor.h> #include <asm/vmx.h> +#include "cpu.h" #undef pr_fmt #define pr_fmt(fmt) "x86/cpu: " fmt diff --git a/arch/x86/kernel/cpu/intel.c b/arch/x86/kernel/cpu/intel.c index be82cd5841c3..9a26e972cdea 100644 --- a/arch/x86/kernel/cpu/intel.c +++ b/arch/x86/kernel/cpu/intel.c @@ -19,6 +19,8 @@ #include <asm/microcode_intel.h> #include <asm/hwcap2.h> #include <asm/elf.h> +#include <asm/cpu_device_id.h> +#include <asm/cmdline.h> #ifdef CONFIG_X86_64 #include <linux/topology.h> @@ -31,6 +33,20 @@ #include <asm/apic.h> #endif +enum split_lock_detect_state { + sld_off = 0, + sld_warn, + sld_fatal, +}; + +/* + * Default to sld_off because most systems do not support split lock detection + * split_lock_setup() will switch this to sld_warn on systems that support + * split lock detect, unless there is a command line override. + */ +static enum split_lock_detect_state sld_state __ro_after_init = sld_off; +static u64 msr_test_ctrl_cache __ro_after_init; + /* * Processors which have self-snooping capability can handle conflicting * memory type across CPUs by snooping its own cache. However, there exists @@ -570,6 +586,8 @@ static void init_intel_misc_features(struct cpuinfo_x86 *c) wrmsrl(MSR_MISC_FEATURES_ENABLES, msr); } +static void split_lock_init(void); + static void init_intel(struct cpuinfo_x86 *c) { early_init_intel(c); @@ -684,6 +702,8 @@ static void init_intel(struct cpuinfo_x86 *c) tsx_enable(); if (tsx_ctrl_state == TSX_CTRL_DISABLE) tsx_disable(); + + split_lock_init(); } #ifdef CONFIG_X86_32 @@ -945,3 +965,166 @@ static const struct cpu_dev intel_cpu_dev = { }; cpu_dev_register(intel_cpu_dev); + +#undef pr_fmt +#define pr_fmt(fmt) "x86/split lock detection: " fmt + +static const struct { + const char *option; + enum split_lock_detect_state state; +} sld_options[] __initconst = { + { "off", sld_off }, + { "warn", sld_warn }, + { "fatal", sld_fatal }, +}; + +static inline bool match_option(const char *arg, int arglen, const char *opt) +{ + int len = strlen(opt); + + return len == arglen && !strncmp(arg, opt, len); +} + +static bool split_lock_verify_msr(bool on) +{ + u64 ctrl, tmp; + + if (rdmsrl_safe(MSR_TEST_CTRL, &ctrl)) + return false; + if (on) + ctrl |= MSR_TEST_CTRL_SPLIT_LOCK_DETECT; + else + ctrl &= ~MSR_TEST_CTRL_SPLIT_LOCK_DETECT; + if (wrmsrl_safe(MSR_TEST_CTRL, ctrl)) + return false; + rdmsrl(MSR_TEST_CTRL, tmp); + return ctrl == tmp; +} + +static void __init split_lock_setup(void) +{ + enum split_lock_detect_state state = sld_warn; + char arg[20]; + int i, ret; + + if (!split_lock_verify_msr(false)) { + pr_info("MSR access failed: Disabled\n"); + return; + } + + ret = cmdline_find_option(boot_command_line, "split_lock_detect", + arg, sizeof(arg)); + if (ret >= 0) { + for (i = 0; i < ARRAY_SIZE(sld_options); i++) { + if (match_option(arg, ret, sld_options[i].option)) { + state = sld_options[i].state; + break; + } + } + } + + switch (state) { + case sld_off: + pr_info("disabled\n"); + return; + case sld_warn: + pr_info("warning about user-space split_locks\n"); + break; + case sld_fatal: + pr_info("sending SIGBUS on user-space split_locks\n"); + break; + } + + rdmsrl(MSR_TEST_CTRL, msr_test_ctrl_cache); + + if (!split_lock_verify_msr(true)) { + pr_info("MSR access failed: Disabled\n"); + return; + } + + sld_state = state; + setup_force_cpu_cap(X86_FEATURE_SPLIT_LOCK_DETECT); +} + +/* + * MSR_TEST_CTRL is per core, but we treat it like a per CPU MSR. Locking + * is not implemented as one thread could undo the setting of the other + * thread immediately after dropping the lock anyway. + */ +static void sld_update_msr(bool on) +{ + u64 test_ctrl_val = msr_test_ctrl_cache; + + if (on) + test_ctrl_val |= MSR_TEST_CTRL_SPLIT_LOCK_DETECT; + + wrmsrl(MSR_TEST_CTRL, test_ctrl_val); +} + +static void split_lock_init(void) +{ + split_lock_verify_msr(sld_state != sld_off); +} + +bool handle_user_split_lock(struct pt_regs *regs, long error_code) +{ + if ((regs->flags & X86_EFLAGS_AC) || sld_state == sld_fatal) + return false; + + pr_warn_ratelimited("#AC: %s/%d took a split_lock trap at address: 0x%lx\n", + current->comm, current->pid, regs->ip); + + /* + * Disable the split lock detection for this task so it can make + * progress and set TIF_SLD so the detection is re-enabled via + * switch_to_sld() when the task is scheduled out. + */ + sld_update_msr(false); + set_tsk_thread_flag(current, TIF_SLD); + return true; +} + +/* + * This function is called only when switching between tasks with + * different split-lock detection modes. It sets the MSR for the + * mode of the new task. This is right most of the time, but since + * the MSR is shared by hyperthreads on a physical core there can + * be glitches when the two threads need different modes. + */ +void switch_to_sld(unsigned long tifn) +{ + sld_update_msr(!(tifn & _TIF_SLD)); +} + +#define SPLIT_LOCK_CPU(model) {X86_VENDOR_INTEL, 6, model, X86_FEATURE_ANY} + +/* + * The following processors have the split lock detection feature. But + * since they don't have the IA32_CORE_CAPABILITIES MSR, the feature cannot + * be enumerated. Enable it by family and model matching on these + * processors. + */ +static const struct x86_cpu_id split_lock_cpu_ids[] __initconst = { + SPLIT_LOCK_CPU(INTEL_FAM6_ICELAKE_X), + SPLIT_LOCK_CPU(INTEL_FAM6_ICELAKE_L), + {} +}; + +void __init cpu_set_core_cap_bits(struct cpuinfo_x86 *c) +{ + u64 ia32_core_caps = 0; + + if (c->x86_vendor != X86_VENDOR_INTEL) + return; + if (cpu_has(c, X86_FEATURE_CORE_CAPABILITIES)) { + /* Enumerate features reported in IA32_CORE_CAPABILITIES MSR. */ + rdmsrl(MSR_IA32_CORE_CAPS, ia32_core_caps); + } else if (!boot_cpu_has(X86_FEATURE_HYPERVISOR)) { + /* Enumerate split lock detection by family and model. */ + if (x86_match_cpu(split_lock_cpu_ids)) + ia32_core_caps |= MSR_IA32_CORE_CAPS_SPLIT_LOCK_DETECT; + } + + if (ia32_core_caps & MSR_IA32_CORE_CAPS_SPLIT_LOCK_DETECT) + split_lock_setup(); +} diff --git a/arch/x86/kernel/cpu/match.c b/arch/x86/kernel/cpu/match.c index 6dd78d8235e4..d3482eb43ff3 100644 --- a/arch/x86/kernel/cpu/match.c +++ b/arch/x86/kernel/cpu/match.c @@ -16,12 +16,17 @@ * respective wildcard entries. * * A typical table entry would be to match a specific CPU - * { X86_VENDOR_INTEL, 6, 0x12 } - * or to match a specific CPU feature - * { X86_FEATURE_MATCH(X86_FEATURE_FOOBAR) } + * + * X86_MATCH_VENDOR_FAM_MODEL_FEATURE(INTEL, 6, INTEL_FAM6_BROADWELL, + * X86_FEATURE_ANY, NULL); * * Fields can be wildcarded with %X86_VENDOR_ANY, %X86_FAMILY_ANY, - * %X86_MODEL_ANY, %X86_FEATURE_ANY or 0 (except for vendor) + * %X86_MODEL_ANY, %X86_FEATURE_ANY (except for vendor) + * + * asm/cpu_device_id.h contains a set of useful macros which are shortcuts + * for various common selections. The above can be shortened to: + * + * X86_MATCH_INTEL_FAM6_MODEL(BROADWELL, NULL); * * Arrays used to match for this should also be declared using * MODULE_DEVICE_TABLE(x86cpu, ...) diff --git a/arch/x86/kernel/cpu/mce/core.c b/arch/x86/kernel/cpu/mce/core.c index 2c4f949611e4..54165f3569e8 100644 --- a/arch/x86/kernel/cpu/mce/core.c +++ b/arch/x86/kernel/cpu/mce/core.c @@ -142,6 +142,8 @@ void mce_setup(struct mce *m) if (this_cpu_has(X86_FEATURE_INTEL_PPIN)) rdmsrl(MSR_PPIN, m->ppin); + else if (this_cpu_has(X86_FEATURE_AMD_PPIN)) + rdmsrl(MSR_AMD_PPIN, m->ppin); m->microcode = boot_cpu_data.microcode; } @@ -1213,8 +1215,14 @@ static void __mc_scan_banks(struct mce *m, struct mce *final, * On Intel systems this is entered on all CPUs in parallel through * MCE broadcast. However some CPUs might be broken beyond repair, * so be always careful when synchronizing with others. + * + * Tracing and kprobes are disabled: if we interrupted a kernel context + * with IF=1, we need to minimize stack usage. There are also recursion + * issues: if the machine check was due to a failure of the memory + * backing the user stack, tracing that reads the user stack will cause + * potentially infinite recursion. */ -void do_machine_check(struct pt_regs *regs, long error_code) +void notrace do_machine_check(struct pt_regs *regs, long error_code) { DECLARE_BITMAP(valid_banks, MAX_NR_BANKS); DECLARE_BITMAP(toclear, MAX_NR_BANKS); @@ -1360,6 +1368,7 @@ out_ist: ist_exit(regs); } EXPORT_SYMBOL_GPL(do_machine_check); +NOKPROBE_SYMBOL(do_machine_check); #ifndef CONFIG_MEMORY_FAILURE int memory_failure(unsigned long pfn, int flags) @@ -1877,6 +1886,8 @@ bool filter_mce(struct mce *m) { if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD) return amd_filter_mce(m); + if (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL) + return intel_filter_mce(m); return false; } @@ -1892,10 +1903,11 @@ static void unexpected_machine_check(struct pt_regs *regs, long error_code) void (*machine_check_vector)(struct pt_regs *, long error_code) = unexpected_machine_check; -dotraplinkage void do_mce(struct pt_regs *regs, long error_code) +dotraplinkage notrace void do_mce(struct pt_regs *regs, long error_code) { machine_check_vector(regs, error_code); } +NOKPROBE_SYMBOL(do_mce); /* * Called for each booted CPU to set up machine checks. diff --git a/arch/x86/kernel/cpu/mce/dev-mcelog.c b/arch/x86/kernel/cpu/mce/dev-mcelog.c index 7c8958dee103..d089567a9ce8 100644 --- a/arch/x86/kernel/cpu/mce/dev-mcelog.c +++ b/arch/x86/kernel/cpu/mce/dev-mcelog.c @@ -29,11 +29,7 @@ static char *mce_helper_argv[2] = { mce_helper, NULL }; * separate MCEs from kernel messages to avoid bogus bug reports. */ -static struct mce_log_buffer mcelog = { - .signature = MCE_LOG_SIGNATURE, - .len = MCE_LOG_LEN, - .recordlen = sizeof(struct mce), -}; +static struct mce_log_buffer *mcelog; static DECLARE_WAIT_QUEUE_HEAD(mce_chrdev_wait); @@ -45,21 +41,21 @@ static int dev_mce_log(struct notifier_block *nb, unsigned long val, mutex_lock(&mce_chrdev_read_mutex); - entry = mcelog.next; + entry = mcelog->next; /* * When the buffer fills up discard new entries. Assume that the * earlier errors are the more interesting ones: */ - if (entry >= MCE_LOG_LEN) { - set_bit(MCE_OVERFLOW, (unsigned long *)&mcelog.flags); + if (entry >= mcelog->len) { + set_bit(MCE_OVERFLOW, (unsigned long *)&mcelog->flags); goto unlock; } - mcelog.next = entry + 1; + mcelog->next = entry + 1; - memcpy(mcelog.entry + entry, mce, sizeof(struct mce)); - mcelog.entry[entry].finished = 1; + memcpy(mcelog->entry + entry, mce, sizeof(struct mce)); + mcelog->entry[entry].finished = 1; /* wake processes polling /dev/mcelog */ wake_up_interruptible(&mce_chrdev_wait); @@ -214,21 +210,21 @@ static ssize_t mce_chrdev_read(struct file *filp, char __user *ubuf, /* Only supports full reads right now */ err = -EINVAL; - if (*off != 0 || usize < MCE_LOG_LEN*sizeof(struct mce)) + if (*off != 0 || usize < mcelog->len * sizeof(struct mce)) goto out; - next = mcelog.next; + next = mcelog->next; err = 0; for (i = 0; i < next; i++) { - struct mce *m = &mcelog.entry[i]; + struct mce *m = &mcelog->entry[i]; err |= copy_to_user(buf, m, sizeof(*m)); buf += sizeof(*m); } - memset(mcelog.entry, 0, next * sizeof(struct mce)); - mcelog.next = 0; + memset(mcelog->entry, 0, next * sizeof(struct mce)); + mcelog->next = 0; if (err) err = -EFAULT; @@ -242,7 +238,7 @@ out: static __poll_t mce_chrdev_poll(struct file *file, poll_table *wait) { poll_wait(file, &mce_chrdev_wait, wait); - if (READ_ONCE(mcelog.next)) + if (READ_ONCE(mcelog->next)) return EPOLLIN | EPOLLRDNORM; if (!mce_apei_read_done && apei_check_mce()) return EPOLLIN | EPOLLRDNORM; @@ -261,13 +257,13 @@ static long mce_chrdev_ioctl(struct file *f, unsigned int cmd, case MCE_GET_RECORD_LEN: return put_user(sizeof(struct mce), p); case MCE_GET_LOG_LEN: - return put_user(MCE_LOG_LEN, p); + return put_user(mcelog->len, p); case MCE_GETCLEAR_FLAGS: { unsigned flags; do { - flags = mcelog.flags; - } while (cmpxchg(&mcelog.flags, flags, 0) != flags); + flags = mcelog->flags; + } while (cmpxchg(&mcelog->flags, flags, 0) != flags); return put_user(flags, p); } @@ -339,8 +335,18 @@ static struct miscdevice mce_chrdev_device = { static __init int dev_mcelog_init_device(void) { + int mce_log_len; int err; + mce_log_len = max(MCE_LOG_MIN_LEN, num_online_cpus()); + mcelog = kzalloc(sizeof(*mcelog) + mce_log_len * sizeof(struct mce), GFP_KERNEL); + if (!mcelog) + return -ENOMEM; + + strncpy(mcelog->signature, MCE_LOG_SIGNATURE, sizeof(mcelog->signature)); + mcelog->len = mce_log_len; + mcelog->recordlen = sizeof(struct mce); + /* register character device /dev/mcelog */ err = misc_register(&mce_chrdev_device); if (err) { @@ -350,6 +356,7 @@ static __init int dev_mcelog_init_device(void) else pr_err("Unable to init device /dev/mcelog (rc: %d)\n", err); + kfree(mcelog); return err; } diff --git a/arch/x86/kernel/cpu/mce/intel.c b/arch/x86/kernel/cpu/mce/intel.c index 5627b1091b85..d8f9230d2034 100644 --- a/arch/x86/kernel/cpu/mce/intel.c +++ b/arch/x86/kernel/cpu/mce/intel.c @@ -493,17 +493,18 @@ static void intel_ppin_init(struct cpuinfo_x86 *c) return; if ((val & 3UL) == 1UL) { - /* PPIN available but disabled: */ + /* PPIN locked in disabled mode */ return; } - /* If PPIN is disabled, but not locked, try to enable: */ - if (!(val & 3UL)) { + /* If PPIN is disabled, try to enable */ + if (!(val & 2UL)) { wrmsrl_safe(MSR_PPIN_CTL, val | 2UL); rdmsrl_safe(MSR_PPIN_CTL, &val); } - if ((val & 3UL) == 2UL) + /* Is the enable bit set? */ + if (val & 2UL) set_cpu_cap(c, X86_FEATURE_INTEL_PPIN); } } @@ -520,3 +521,20 @@ void mce_intel_feature_clear(struct cpuinfo_x86 *c) { intel_clear_lmce(); } + +bool intel_filter_mce(struct mce *m) +{ + struct cpuinfo_x86 *c = &boot_cpu_data; + + /* MCE errata HSD131, HSM142, HSW131, BDM48, and HSM142 */ + if ((c->x86 == 6) && + ((c->x86_model == INTEL_FAM6_HASWELL) || + (c->x86_model == INTEL_FAM6_HASWELL_L) || + (c->x86_model == INTEL_FAM6_BROADWELL) || + (c->x86_model == INTEL_FAM6_HASWELL_G)) && + (m->bank == 0) && + ((m->status & 0xa0000000ffffffff) == 0x80000000000f0005)) + return true; + + return false; +} diff --git a/arch/x86/kernel/cpu/mce/internal.h b/arch/x86/kernel/cpu/mce/internal.h index b785c0d0b590..3b008172ad73 100644 --- a/arch/x86/kernel/cpu/mce/internal.h +++ b/arch/x86/kernel/cpu/mce/internal.h @@ -8,6 +8,9 @@ #include <linux/device.h> #include <asm/mce.h> +/* Pointer to the installed machine check handler for this CPU setup. */ +extern void (*machine_check_vector)(struct pt_regs *, long error_code); + enum severity_level { MCE_NO_SEVERITY, MCE_DEFERRED_SEVERITY, @@ -48,6 +51,7 @@ void cmci_disable_bank(int bank); void intel_init_cmci(void); void intel_init_lmce(void); void intel_clear_lmce(void); +bool intel_filter_mce(struct mce *m); #else # define cmci_intel_adjust_timer mce_adjust_timer_default static inline bool mce_intel_cmci_poll(void) { return false; } @@ -56,6 +60,7 @@ static inline void cmci_disable_bank(int bank) { } static inline void intel_init_cmci(void) { } static inline void intel_init_lmce(void) { } static inline void intel_clear_lmce(void) { } +static inline bool intel_filter_mce(struct mce *m) { return false; }; #endif void mce_timer_kick(unsigned long interval); diff --git a/arch/x86/kernel/cpu/mce/therm_throt.c b/arch/x86/kernel/cpu/mce/therm_throt.c index 58b4ee3cda77..f36dc0742085 100644 --- a/arch/x86/kernel/cpu/mce/therm_throt.c +++ b/arch/x86/kernel/cpu/mce/therm_throt.c @@ -486,9 +486,14 @@ static int thermal_throttle_offline(unsigned int cpu) { struct thermal_state *state = &per_cpu(thermal_state, cpu); struct device *dev = get_cpu_device(cpu); + u32 l; + + /* Mask the thermal vector before draining evtl. pending work */ + l = apic_read(APIC_LVTTHMR); + apic_write(APIC_LVTTHMR, l | APIC_LVT_MASKED); - cancel_delayed_work(&state->package_throttle.therm_work); - cancel_delayed_work(&state->core_throttle.therm_work); + cancel_delayed_work_sync(&state->package_throttle.therm_work); + cancel_delayed_work_sync(&state->core_throttle.therm_work); state->package_throttle.rate_control_active = false; state->core_throttle.rate_control_active = false; diff --git a/arch/x86/kernel/cpu/umwait.c b/arch/x86/kernel/cpu/umwait.c index c222f283b456..300e3fd5ade3 100644 --- a/arch/x86/kernel/cpu/umwait.c +++ b/arch/x86/kernel/cpu/umwait.c @@ -4,6 +4,7 @@ #include <linux/cpu.h> #include <asm/msr.h> +#include <asm/mwait.h> #define UMWAIT_C02_ENABLE 0 diff --git a/arch/x86/kernel/fpu/xstate.c b/arch/x86/kernel/fpu/xstate.c index a1806598aaa4..32b153d38748 100644 --- a/arch/x86/kernel/fpu/xstate.c +++ b/arch/x86/kernel/fpu/xstate.c @@ -120,11 +120,6 @@ static bool xfeature_is_supervisor(int xfeature_nr) return ecx & 1; } -static bool xfeature_is_user(int xfeature_nr) -{ - return !xfeature_is_supervisor(xfeature_nr); -} - /* * When executing XSAVEOPT (or other optimized XSAVE instructions), if * a processor implementation detects that an FPU state component is still @@ -265,21 +260,25 @@ static void __init setup_xstate_features(void) cpuid_count(XSTATE_CPUID, i, &eax, &ebx, &ecx, &edx); + xstate_sizes[i] = eax; + /* - * If an xfeature is supervisor state, the offset - * in EBX is invalid. We leave it to -1. + * If an xfeature is supervisor state, the offset in EBX is + * invalid, leave it to -1. */ - if (xfeature_is_user(i)) - xstate_offsets[i] = ebx; + if (xfeature_is_supervisor(i)) + continue; + + xstate_offsets[i] = ebx; - xstate_sizes[i] = eax; /* - * In our xstate size checks, we assume that the - * highest-numbered xstate feature has the - * highest offset in the buffer. Ensure it does. + * In our xstate size checks, we assume that the highest-numbered + * xstate feature has the highest offset in the buffer. Ensure + * it does. */ WARN_ONCE(last_good_offset > xstate_offsets[i], - "x86/fpu: misordered xstate at %d\n", last_good_offset); + "x86/fpu: misordered xstate at %d\n", last_good_offset); + last_good_offset = xstate_offsets[i]; } } @@ -326,6 +325,13 @@ static int xfeature_is_aligned(int xfeature_nr) u32 eax, ebx, ecx, edx; CHECK_XFEATURE(xfeature_nr); + + if (!xfeature_enabled(xfeature_nr)) { + WARN_ONCE(1, "Checking alignment of disabled xfeature %d\n", + xfeature_nr); + return 0; + } + cpuid_count(XSTATE_CPUID, xfeature_nr, &eax, &ebx, &ecx, &edx); /* * The value returned by ECX[1] indicates the alignment @@ -338,11 +344,11 @@ static int xfeature_is_aligned(int xfeature_nr) /* * This function sets up offsets and sizes of all extended states in * xsave area. This supports both standard format and compacted format - * of the xsave aread. + * of the xsave area. */ -static void __init setup_xstate_comp(void) +static void __init setup_xstate_comp_offsets(void) { - unsigned int xstate_comp_sizes[XFEATURE_MAX]; + unsigned int next_offset; int i; /* @@ -356,31 +362,23 @@ static void __init setup_xstate_comp(void) if (!boot_cpu_has(X86_FEATURE_XSAVES)) { for (i = FIRST_EXTENDED_XFEATURE; i < XFEATURE_MAX; i++) { - if (xfeature_enabled(i)) { + if (xfeature_enabled(i)) xstate_comp_offsets[i] = xstate_offsets[i]; - xstate_comp_sizes[i] = xstate_sizes[i]; - } } return; } - xstate_comp_offsets[FIRST_EXTENDED_XFEATURE] = - FXSAVE_SIZE + XSAVE_HDR_SIZE; + next_offset = FXSAVE_SIZE + XSAVE_HDR_SIZE; for (i = FIRST_EXTENDED_XFEATURE; i < XFEATURE_MAX; i++) { - if (xfeature_enabled(i)) - xstate_comp_sizes[i] = xstate_sizes[i]; - else - xstate_comp_sizes[i] = 0; + if (!xfeature_enabled(i)) + continue; - if (i > FIRST_EXTENDED_XFEATURE) { - xstate_comp_offsets[i] = xstate_comp_offsets[i-1] - + xstate_comp_sizes[i-1]; + if (xfeature_is_aligned(i)) + next_offset = ALIGN(next_offset, 64); - if (xfeature_is_aligned(i)) - xstate_comp_offsets[i] = - ALIGN(xstate_comp_offsets[i], 64); - } + xstate_comp_offsets[i] = next_offset; + next_offset += xstate_sizes[i]; } } @@ -774,7 +772,7 @@ void __init fpu__init_system_xstate(void) fpu__init_prepare_fx_sw_frame(); setup_init_fpu_buf(); - setup_xstate_comp(); + setup_xstate_comp_offsets(); print_xstate_offset_size(); pr_info("x86/fpu: Enabled xstate features 0x%llx, context size is %d bytes, using '%s' format.\n", @@ -897,8 +895,6 @@ const void *get_xsave_field_ptr(int xfeature_nr) #ifdef CONFIG_ARCH_HAS_PKEYS -#define NR_VALID_PKRU_BITS (CONFIG_NR_PROTECTION_KEYS * 2) -#define PKRU_VALID_MASK (NR_VALID_PKRU_BITS - 1) /* * This will go out and modify PKRU register to set the access * rights for @pkey to @init_val. @@ -917,6 +913,13 @@ int arch_set_user_pkey_access(struct task_struct *tsk, int pkey, if (!boot_cpu_has(X86_FEATURE_OSPKE)) return -EINVAL; + /* + * This code should only be called with valid 'pkey' + * values originating from in-kernel users. Complain + * if a bad value is observed. + */ + WARN_ON_ONCE(pkey >= arch_max_pkey()); + /* Set the bits we need in PKRU: */ if (init_val & PKEY_DISABLE_ACCESS) new_pkru_bits |= PKRU_AD_BIT; diff --git a/arch/x86/kernel/head_32.S b/arch/x86/kernel/head_32.S index 3923ab4630d7..f66a6b90f954 100644 --- a/arch/x86/kernel/head_32.S +++ b/arch/x86/kernel/head_32.S @@ -67,11 +67,6 @@ __HEAD SYM_CODE_START(startup_32) movl pa(initial_stack),%ecx - /* test KEEP_SEGMENTS flag to see if the bootloader is asking - us to not reload segments */ - testb $KEEP_SEGMENTS, BP_loadflags(%esi) - jnz 2f - /* * Set segments to known values. */ @@ -82,7 +77,6 @@ SYM_CODE_START(startup_32) movl %eax,%fs movl %eax,%gs movl %eax,%ss -2: leal -__PAGE_OFFSET(%ecx),%esp /* diff --git a/arch/x86/kernel/ima_arch.c b/arch/x86/kernel/ima_arch.c index 23054909c8dd..7dfb1e808928 100644 --- a/arch/x86/kernel/ima_arch.c +++ b/arch/x86/kernel/ima_arch.c @@ -17,7 +17,7 @@ static enum efi_secureboot_mode get_sb_mode(void) size = sizeof(secboot); - if (!efi_enabled(EFI_RUNTIME_SERVICES)) { + if (!efi_rt_services_supported(EFI_RT_SUPPORTED_GET_VARIABLE)) { pr_info("ima: secureboot mode unknown, no efi\n"); return efi_secureboot_mode_unknown; } diff --git a/arch/x86/kernel/ioport.c b/arch/x86/kernel/ioport.c index 8abeee0dd7bf..a53e7b4a7419 100644 --- a/arch/x86/kernel/ioport.c +++ b/arch/x86/kernel/ioport.c @@ -13,6 +13,7 @@ #include <asm/io_bitmap.h> #include <asm/desc.h> +#include <asm/syscalls.h> #ifdef CONFIG_X86_IOPL_IOPERM diff --git a/arch/x86/kernel/irq.c b/arch/x86/kernel/irq.c index 21efee32e2b1..c7965ff429c5 100644 --- a/arch/x86/kernel/irq.c +++ b/arch/x86/kernel/irq.c @@ -230,7 +230,7 @@ u64 arch_irq_stat(void) * SMP cross-CPU interrupts have their own specific * handlers). */ -__visible unsigned int __irq_entry do_IRQ(struct pt_regs *regs) +__visible void __irq_entry do_IRQ(struct pt_regs *regs) { struct pt_regs *old_regs = set_irq_regs(regs); struct irq_desc * desc; @@ -263,7 +263,6 @@ __visible unsigned int __irq_entry do_IRQ(struct pt_regs *regs) exiting_irq(); set_irq_regs(old_regs); - return 1; } #ifdef CONFIG_X86_LOCAL_APIC diff --git a/arch/x86/kernel/irqinit.c b/arch/x86/kernel/irqinit.c index 16919a9671fa..5aa523c2d573 100644 --- a/arch/x86/kernel/irqinit.c +++ b/arch/x86/kernel/irqinit.c @@ -44,15 +44,6 @@ * (these are usually mapped into the 0x30-0xff vector range) */ -/* - * IRQ2 is cascade interrupt to second interrupt controller - */ -static struct irqaction irq2 = { - .handler = no_action, - .name = "cascade", - .flags = IRQF_NO_THREAD, -}; - DEFINE_PER_CPU(vector_irq_t, vector_irq) = { [0 ... NR_VECTORS - 1] = VECTOR_UNUSED, }; @@ -84,7 +75,7 @@ void __init init_IRQ(void) * On cpu 0, Assign ISA_IRQ_VECTOR(irq) to IRQ 0..15. * If these IRQ's are handled by legacy interrupt-controllers like PIC, * then this configuration will likely be static after the boot. If - * these IRQ's are handled by more mordern controllers like IO-APIC, + * these IRQs are handled by more modern controllers like IO-APIC, * then this vector space can be freed and re-used dynamically as the * irq's migrate etc. */ @@ -104,6 +95,9 @@ void __init native_init_IRQ(void) idt_setup_apic_and_irq_gates(); lapic_assign_system_vectors(); - if (!acpi_ioapic && !of_ioapic && nr_legacy_irqs()) - setup_irq(2, &irq2); + if (!acpi_ioapic && !of_ioapic && nr_legacy_irqs()) { + /* IRQ2 is cascade interrupt to second interrupt controller */ + if (request_irq(2, no_action, IRQF_NO_THREAD, "cascade", NULL)) + pr_err("%s: request_irq() failed\n", "cascade"); + } } diff --git a/arch/x86/kernel/jump_label.c b/arch/x86/kernel/jump_label.c index 9c4498ea0b3c..5ba8477c2cb7 100644 --- a/arch/x86/kernel/jump_label.c +++ b/arch/x86/kernel/jump_label.c @@ -58,7 +58,7 @@ __jump_label_set_jump_code(struct jump_entry *entry, enum jump_label_type type, return code; } -static void inline __jump_label_transform(struct jump_entry *entry, +static inline void __jump_label_transform(struct jump_entry *entry, enum jump_label_type type, int init) { diff --git a/arch/x86/kernel/kexec-bzimage64.c b/arch/x86/kernel/kexec-bzimage64.c index f293d872602a..db6578d45157 100644 --- a/arch/x86/kernel/kexec-bzimage64.c +++ b/arch/x86/kernel/kexec-bzimage64.c @@ -141,9 +141,8 @@ prepare_add_efi_setup_data(struct boot_params *params, struct setup_data *sd = (void *)params + efi_setup_data_offset; struct efi_setup_data *esd = (void *)sd + sizeof(struct setup_data); - esd->fw_vendor = efi.fw_vendor; - esd->runtime = efi.runtime; - esd->tables = efi.config_table; + esd->fw_vendor = efi_fw_vendor; + esd->tables = efi_config_table; esd->smbios = efi.smbios; sd->type = SETUP_EFI; diff --git a/arch/x86/kernel/kprobes/opt.c b/arch/x86/kernel/kprobes/opt.c index 3f45b5c43a71..ea13f6888284 100644 --- a/arch/x86/kernel/kprobes/opt.c +++ b/arch/x86/kernel/kprobes/opt.c @@ -71,6 +71,21 @@ found: return (unsigned long)buf; } +static void synthesize_clac(kprobe_opcode_t *addr) +{ + /* + * Can't be static_cpu_has() due to how objtool treats this feature bit. + * This isn't a fast path anyway. + */ + if (!boot_cpu_has(X86_FEATURE_SMAP)) + return; + + /* Replace the NOP3 with CLAC */ + addr[0] = 0x0f; + addr[1] = 0x01; + addr[2] = 0xca; +} + /* Insert a move instruction which sets a pointer to eax/rdi (1st arg). */ static void synthesize_set_arg1(kprobe_opcode_t *addr, unsigned long val) { @@ -92,6 +107,9 @@ asm ( /* We don't bother saving the ss register */ " pushq %rsp\n" " pushfq\n" + ".global optprobe_template_clac\n" + "optprobe_template_clac:\n" + ASM_NOP3 SAVE_REGS_STRING " movq %rsp, %rsi\n" ".global optprobe_template_val\n" @@ -111,6 +129,9 @@ asm ( #else /* CONFIG_X86_32 */ " pushl %esp\n" " pushfl\n" + ".global optprobe_template_clac\n" + "optprobe_template_clac:\n" + ASM_NOP3 SAVE_REGS_STRING " movl %esp, %edx\n" ".global optprobe_template_val\n" @@ -134,6 +155,8 @@ asm ( void optprobe_template_func(void); STACK_FRAME_NON_STANDARD(optprobe_template_func); +#define TMPL_CLAC_IDX \ + ((long)optprobe_template_clac - (long)optprobe_template_entry) #define TMPL_MOVE_IDX \ ((long)optprobe_template_val - (long)optprobe_template_entry) #define TMPL_CALL_IDX \ @@ -389,6 +412,8 @@ int arch_prepare_optimized_kprobe(struct optimized_kprobe *op, op->optinsn.size = ret; len = TMPL_END_IDX + op->optinsn.size; + synthesize_clac(buf + TMPL_CLAC_IDX); + /* Set probe information */ synthesize_set_arg1(buf + TMPL_MOVE_IDX, (unsigned long)op); diff --git a/arch/x86/kernel/kvmclock.c b/arch/x86/kernel/kvmclock.c index 904494b924c1..34b18f6eeb2c 100644 --- a/arch/x86/kernel/kvmclock.c +++ b/arch/x86/kernel/kvmclock.c @@ -159,12 +159,19 @@ bool kvm_check_and_clear_guest_paused(void) return ret; } +static int kvm_cs_enable(struct clocksource *cs) +{ + vclocks_set_used(VDSO_CLOCKMODE_PVCLOCK); + return 0; +} + struct clocksource kvm_clock = { .name = "kvm-clock", .read = kvm_clock_get_cycles, .rating = 400, .mask = CLOCKSOURCE_MASK(64), .flags = CLOCK_SOURCE_IS_CONTINUOUS, + .enable = kvm_cs_enable, }; EXPORT_SYMBOL_GPL(kvm_clock); @@ -272,7 +279,7 @@ static int __init kvm_setup_vsyscall_timeinfo(void) if (!(flags & PVCLOCK_TSC_STABLE_BIT)) return 0; - kvm_clock.archdata.vclock_mode = VCLOCK_PVCLOCK; + kvm_clock.vdso_clock_mode = VDSO_CLOCKMODE_PVCLOCK; #endif kvmclock_init_mem(); diff --git a/arch/x86/kernel/ldt.c b/arch/x86/kernel/ldt.c index c57e1ca70fd1..84c3ba32f211 100644 --- a/arch/x86/kernel/ldt.c +++ b/arch/x86/kernel/ldt.c @@ -27,7 +27,6 @@ #include <asm/tlb.h> #include <asm/desc.h> #include <asm/mmu_context.h> -#include <asm/syscalls.h> #include <asm/pgtable_areas.h> /* This is a multiple of PAGE_SIZE. */ diff --git a/arch/x86/kernel/nmi.c b/arch/x86/kernel/nmi.c index 54c21d6abd5a..6407ea21fa1b 100644 --- a/arch/x86/kernel/nmi.c +++ b/arch/x86/kernel/nmi.c @@ -403,9 +403,9 @@ static void default_do_nmi(struct pt_regs *regs) * a 'real' unknown NMI. For example, while processing * a perf NMI another perf NMI comes in along with a * 'real' unknown NMI. These two NMIs get combined into - * one (as descibed above). When the next NMI gets + * one (as described above). When the next NMI gets * processed, it will be flagged by perf as handled, but - * noone will know that there was a 'real' unknown NMI sent + * no one will know that there was a 'real' unknown NMI sent * also. As a result it gets swallowed. Or if the first * perf NMI returns two events handled then the second * NMI will get eaten by the logic below, again losing a diff --git a/arch/x86/kernel/paravirt.c b/arch/x86/kernel/paravirt.c index 789f5e4f89de..c131ba4e70ef 100644 --- a/arch/x86/kernel/paravirt.c +++ b/arch/x86/kernel/paravirt.c @@ -30,6 +30,7 @@ #include <asm/timer.h> #include <asm/special_insns.h> #include <asm/tlb.h> +#include <asm/io_bitmap.h> /* * nop stub, which must not clobber anything *including the stack* to @@ -341,6 +342,10 @@ struct paravirt_patch_template pv_ops = { .cpu.iret = native_iret, .cpu.swapgs = native_swapgs, +#ifdef CONFIG_X86_IOPL_IOPERM + .cpu.update_io_bitmap = native_tss_update_io_bitmap, +#endif + .cpu.start_context_switch = paravirt_nop, .cpu.end_context_switch = paravirt_nop, diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c index 839b5244e3b7..9da70b279dad 100644 --- a/arch/x86/kernel/process.c +++ b/arch/x86/kernel/process.c @@ -28,7 +28,6 @@ #include <linux/hw_breakpoint.h> #include <asm/cpu.h> #include <asm/apic.h> -#include <asm/syscalls.h> #include <linux/uaccess.h> #include <asm/mwait.h> #include <asm/fpu/internal.h> @@ -374,7 +373,7 @@ static void tss_copy_io_bitmap(struct tss_struct *tss, struct io_bitmap *iobm) /** * tss_update_io_bitmap - Update I/O bitmap before exiting to usermode */ -void tss_update_io_bitmap(void) +void native_tss_update_io_bitmap(void) { struct tss_struct *tss = this_cpu_ptr(&cpu_tss_rw); struct thread_struct *t = ¤t->thread; @@ -650,6 +649,9 @@ void __switch_to_xtra(struct task_struct *prev_p, struct task_struct *next_p) /* Enforce MSR update to ensure consistent state */ __speculation_ctrl_update(~tifn, tifn); } + + if ((tifp ^ tifn) & _TIF_SLD) + switch_to_sld(tifn); } /* diff --git a/arch/x86/kernel/process_32.c b/arch/x86/kernel/process_32.c index 5052ced43373..954b013cc585 100644 --- a/arch/x86/kernel/process_32.c +++ b/arch/x86/kernel/process_32.c @@ -49,7 +49,6 @@ #include <asm/tlbflush.h> #include <asm/cpu.h> -#include <asm/syscalls.h> #include <asm/debugreg.h> #include <asm/switch_to.h> #include <asm/vm86.h> diff --git a/arch/x86/kernel/process_64.c b/arch/x86/kernel/process_64.c index ffd497804dbc..5ef9d8f25b0e 100644 --- a/arch/x86/kernel/process_64.c +++ b/arch/x86/kernel/process_64.c @@ -48,7 +48,6 @@ #include <asm/desc.h> #include <asm/proto.h> #include <asm/ia32.h> -#include <asm/syscalls.h> #include <asm/debugreg.h> #include <asm/switch_to.h> #include <asm/xen/hypervisor.h> diff --git a/arch/x86/kernel/pvclock.c b/arch/x86/kernel/pvclock.c index 10125358b9c4..11065dc03f5b 100644 --- a/arch/x86/kernel/pvclock.c +++ b/arch/x86/kernel/pvclock.c @@ -145,7 +145,7 @@ void pvclock_read_wallclock(struct pvclock_wall_clock *wall_clock, void pvclock_set_pvti_cpu0_va(struct pvclock_vsyscall_time_info *pvti) { - WARN_ON(vclock_was_used(VCLOCK_PVCLOCK)); + WARN_ON(vclock_was_used(VDSO_CLOCKMODE_PVCLOCK)); pvti_cpu0_va = pvti; } diff --git a/arch/x86/kernel/reboot.c b/arch/x86/kernel/reboot.c index 0cc7c0b106bb..3ca43be4f9cf 100644 --- a/arch/x86/kernel/reboot.c +++ b/arch/x86/kernel/reboot.c @@ -531,7 +531,7 @@ static void emergency_vmx_disable_all(void) /* * We need to disable VMX on all CPUs before rebooting, otherwise - * we risk hanging up the machine, because the CPU ignore INIT + * we risk hanging up the machine, because the CPU ignores INIT * signals when VMX is enabled. * * We can't take any locks and we may be on an inconsistent diff --git a/arch/x86/kernel/relocate_kernel_64.S b/arch/x86/kernel/relocate_kernel_64.S index ef3ba99068d3..a4d9a261425b 100644 --- a/arch/x86/kernel/relocate_kernel_64.S +++ b/arch/x86/kernel/relocate_kernel_64.S @@ -9,6 +9,8 @@ #include <asm/kexec.h> #include <asm/processor-flags.h> #include <asm/pgtable_types.h> +#include <asm/nospec-branch.h> +#include <asm/unwind_hints.h> /* * Must be relocatable PIC code callable as a C function @@ -39,6 +41,7 @@ .align PAGE_SIZE .code64 SYM_CODE_START_NOALIGN(relocate_kernel) + UNWIND_HINT_EMPTY /* * %rdi indirection_page * %rsi page_list @@ -105,6 +108,7 @@ SYM_CODE_START_NOALIGN(relocate_kernel) SYM_CODE_END(relocate_kernel) SYM_CODE_START_LOCAL_NOALIGN(identity_mapped) + UNWIND_HINT_EMPTY /* set return address to 0 if not preserving context */ pushq $0 /* store the start address on the stack */ @@ -192,14 +196,12 @@ SYM_CODE_START_LOCAL_NOALIGN(identity_mapped) 1: popq %rdx leaq PAGE_SIZE(%r10), %rsp + ANNOTATE_RETPOLINE_SAFE call *%rdx /* get the re-entry point of the peer system */ movq 0(%rsp), %rbp - call 1f -1: - popq %r8 - subq $(1b - relocate_kernel), %r8 + leaq relocate_kernel(%rip), %r8 movq CP_PA_SWAP_PAGE(%r8), %r10 movq CP_PA_BACKUP_PAGES_MAP(%r8), %rdi movq CP_PA_TABLE_PAGE(%r8), %rax @@ -212,6 +214,7 @@ SYM_CODE_START_LOCAL_NOALIGN(identity_mapped) SYM_CODE_END(identity_mapped) SYM_CODE_START_LOCAL_NOALIGN(virtual_mapped) + UNWIND_HINT_EMPTY movq RSP(%r8), %rsp movq CR4(%r8), %rax movq %rax, %cr4 @@ -233,6 +236,7 @@ SYM_CODE_END(virtual_mapped) /* Do the copies */ SYM_CODE_START_LOCAL_NOALIGN(swap_pages) + UNWIND_HINT_EMPTY movq %rdi, %rcx /* Put the page_list in %rcx */ xorl %edi, %edi xorl %esi, %esi diff --git a/arch/x86/kernel/setup.c b/arch/x86/kernel/setup.c index a74262c71484..e6b545047f38 100644 --- a/arch/x86/kernel/setup.c +++ b/arch/x86/kernel/setup.c @@ -64,7 +64,6 @@ RESERVE_BRK(dmi_alloc, 65536); * at link time, with RESERVE_BRK*() facility reserving additional * chunks. */ -static __initdata unsigned long _brk_start = (unsigned long)__brk_base; unsigned long _brk_end = (unsigned long)__brk_base; diff --git a/arch/x86/kernel/signal.c b/arch/x86/kernel/signal.c index 8a29573851a3..83b74fb38c8f 100644 --- a/arch/x86/kernel/signal.c +++ b/arch/x86/kernel/signal.c @@ -42,29 +42,9 @@ #endif /* CONFIG_X86_64 */ #include <asm/syscall.h> -#include <asm/syscalls.h> - #include <asm/sigframe.h> #include <asm/signal.h> -#define COPY(x) do { \ - get_user_ex(regs->x, &sc->x); \ -} while (0) - -#define GET_SEG(seg) ({ \ - unsigned short tmp; \ - get_user_ex(tmp, &sc->seg); \ - tmp; \ -}) - -#define COPY_SEG(seg) do { \ - regs->seg = GET_SEG(seg); \ -} while (0) - -#define COPY_SEG_CPL3(seg) do { \ - regs->seg = GET_SEG(seg) | 3; \ -} while (0) - #ifdef CONFIG_X86_64 /* * If regs->ss will cause an IRET fault, change it. Otherwise leave it @@ -92,53 +72,58 @@ static void force_valid_ss(struct pt_regs *regs) ar != (AR_DPL3 | AR_S | AR_P | AR_TYPE_RWDATA_EXPDOWN)) regs->ss = __USER_DS; } +# define CONTEXT_COPY_SIZE offsetof(struct sigcontext, reserved1) +#else +# define CONTEXT_COPY_SIZE sizeof(struct sigcontext) #endif static int restore_sigcontext(struct pt_regs *regs, - struct sigcontext __user *sc, + struct sigcontext __user *usc, unsigned long uc_flags) { - unsigned long buf_val; - void __user *buf; - unsigned int tmpflags; - unsigned int err = 0; + struct sigcontext sc; /* Always make any pending restarted system calls return -EINTR */ current->restart_block.fn = do_no_restart_syscall; - get_user_try { + if (copy_from_user(&sc, usc, CONTEXT_COPY_SIZE)) + return -EFAULT; #ifdef CONFIG_X86_32 - set_user_gs(regs, GET_SEG(gs)); - COPY_SEG(fs); - COPY_SEG(es); - COPY_SEG(ds); + set_user_gs(regs, sc.gs); + regs->fs = sc.fs; + regs->es = sc.es; + regs->ds = sc.ds; #endif /* CONFIG_X86_32 */ - COPY(di); COPY(si); COPY(bp); COPY(sp); COPY(bx); - COPY(dx); COPY(cx); COPY(ip); COPY(ax); + regs->bx = sc.bx; + regs->cx = sc.cx; + regs->dx = sc.dx; + regs->si = sc.si; + regs->di = sc.di; + regs->bp = sc.bp; + regs->ax = sc.ax; + regs->sp = sc.sp; + regs->ip = sc.ip; #ifdef CONFIG_X86_64 - COPY(r8); - COPY(r9); - COPY(r10); - COPY(r11); - COPY(r12); - COPY(r13); - COPY(r14); - COPY(r15); + regs->r8 = sc.r8; + regs->r9 = sc.r9; + regs->r10 = sc.r10; + regs->r11 = sc.r11; + regs->r12 = sc.r12; + regs->r13 = sc.r13; + regs->r14 = sc.r14; + regs->r15 = sc.r15; #endif /* CONFIG_X86_64 */ - COPY_SEG_CPL3(cs); - COPY_SEG_CPL3(ss); - - get_user_ex(tmpflags, &sc->flags); - regs->flags = (regs->flags & ~FIX_EFLAGS) | (tmpflags & FIX_EFLAGS); - regs->orig_ax = -1; /* disable syscall checks */ + /* Get CS/SS and force CPL3 */ + regs->cs = sc.cs | 0x03; + regs->ss = sc.ss | 0x03; - get_user_ex(buf_val, &sc->fpstate); - buf = (void __user *)buf_val; - } get_user_catch(err); + regs->flags = (regs->flags & ~FIX_EFLAGS) | (sc.flags & FIX_EFLAGS); + /* disable syscall checks */ + regs->orig_ax = -1; #ifdef CONFIG_X86_64 /* @@ -149,70 +134,78 @@ static int restore_sigcontext(struct pt_regs *regs, force_valid_ss(regs); #endif - err |= fpu__restore_sig(buf, IS_ENABLED(CONFIG_X86_32)); - - return err; + return fpu__restore_sig((void __user *)sc.fpstate, + IS_ENABLED(CONFIG_X86_32)); } -int setup_sigcontext(struct sigcontext __user *sc, void __user *fpstate, +static __always_inline int +__unsafe_setup_sigcontext(struct sigcontext __user *sc, void __user *fpstate, struct pt_regs *regs, unsigned long mask) { - int err = 0; - - put_user_try { - #ifdef CONFIG_X86_32 - put_user_ex(get_user_gs(regs), (unsigned int __user *)&sc->gs); - put_user_ex(regs->fs, (unsigned int __user *)&sc->fs); - put_user_ex(regs->es, (unsigned int __user *)&sc->es); - put_user_ex(regs->ds, (unsigned int __user *)&sc->ds); + unsafe_put_user(get_user_gs(regs), + (unsigned int __user *)&sc->gs, Efault); + unsafe_put_user(regs->fs, (unsigned int __user *)&sc->fs, Efault); + unsafe_put_user(regs->es, (unsigned int __user *)&sc->es, Efault); + unsafe_put_user(regs->ds, (unsigned int __user *)&sc->ds, Efault); #endif /* CONFIG_X86_32 */ - put_user_ex(regs->di, &sc->di); - put_user_ex(regs->si, &sc->si); - put_user_ex(regs->bp, &sc->bp); - put_user_ex(regs->sp, &sc->sp); - put_user_ex(regs->bx, &sc->bx); - put_user_ex(regs->dx, &sc->dx); - put_user_ex(regs->cx, &sc->cx); - put_user_ex(regs->ax, &sc->ax); + unsafe_put_user(regs->di, &sc->di, Efault); + unsafe_put_user(regs->si, &sc->si, Efault); + unsafe_put_user(regs->bp, &sc->bp, Efault); + unsafe_put_user(regs->sp, &sc->sp, Efault); + unsafe_put_user(regs->bx, &sc->bx, Efault); + unsafe_put_user(regs->dx, &sc->dx, Efault); + unsafe_put_user(regs->cx, &sc->cx, Efault); + unsafe_put_user(regs->ax, &sc->ax, Efault); #ifdef CONFIG_X86_64 - put_user_ex(regs->r8, &sc->r8); - put_user_ex(regs->r9, &sc->r9); - put_user_ex(regs->r10, &sc->r10); - put_user_ex(regs->r11, &sc->r11); - put_user_ex(regs->r12, &sc->r12); - put_user_ex(regs->r13, &sc->r13); - put_user_ex(regs->r14, &sc->r14); - put_user_ex(regs->r15, &sc->r15); + unsafe_put_user(regs->r8, &sc->r8, Efault); + unsafe_put_user(regs->r9, &sc->r9, Efault); + unsafe_put_user(regs->r10, &sc->r10, Efault); + unsafe_put_user(regs->r11, &sc->r11, Efault); + unsafe_put_user(regs->r12, &sc->r12, Efault); + unsafe_put_user(regs->r13, &sc->r13, Efault); + unsafe_put_user(regs->r14, &sc->r14, Efault); + unsafe_put_user(regs->r15, &sc->r15, Efault); #endif /* CONFIG_X86_64 */ - put_user_ex(current->thread.trap_nr, &sc->trapno); - put_user_ex(current->thread.error_code, &sc->err); - put_user_ex(regs->ip, &sc->ip); + unsafe_put_user(current->thread.trap_nr, &sc->trapno, Efault); + unsafe_put_user(current->thread.error_code, &sc->err, Efault); + unsafe_put_user(regs->ip, &sc->ip, Efault); #ifdef CONFIG_X86_32 - put_user_ex(regs->cs, (unsigned int __user *)&sc->cs); - put_user_ex(regs->flags, &sc->flags); - put_user_ex(regs->sp, &sc->sp_at_signal); - put_user_ex(regs->ss, (unsigned int __user *)&sc->ss); + unsafe_put_user(regs->cs, (unsigned int __user *)&sc->cs, Efault); + unsafe_put_user(regs->flags, &sc->flags, Efault); + unsafe_put_user(regs->sp, &sc->sp_at_signal, Efault); + unsafe_put_user(regs->ss, (unsigned int __user *)&sc->ss, Efault); #else /* !CONFIG_X86_32 */ - put_user_ex(regs->flags, &sc->flags); - put_user_ex(regs->cs, &sc->cs); - put_user_ex(0, &sc->gs); - put_user_ex(0, &sc->fs); - put_user_ex(regs->ss, &sc->ss); + unsafe_put_user(regs->flags, &sc->flags, Efault); + unsafe_put_user(regs->cs, &sc->cs, Efault); + unsafe_put_user(0, &sc->gs, Efault); + unsafe_put_user(0, &sc->fs, Efault); + unsafe_put_user(regs->ss, &sc->ss, Efault); #endif /* CONFIG_X86_32 */ - put_user_ex(fpstate, (unsigned long __user *)&sc->fpstate); - - /* non-iBCS2 extensions.. */ - put_user_ex(mask, &sc->oldmask); - put_user_ex(current->thread.cr2, &sc->cr2); - } put_user_catch(err); + unsafe_put_user(fpstate, (unsigned long __user *)&sc->fpstate, Efault); - return err; + /* non-iBCS2 extensions.. */ + unsafe_put_user(mask, &sc->oldmask, Efault); + unsafe_put_user(current->thread.cr2, &sc->cr2, Efault); + return 0; +Efault: + return -EFAULT; } +#define unsafe_put_sigcontext(sc, fp, regs, set, label) \ +do { \ + if (__unsafe_setup_sigcontext(sc, fp, regs, set->sig[0])) \ + goto label; \ +} while(0); + +#define unsafe_put_sigmask(set, frame, label) \ + unsafe_put_user(*(__u64 *)(set), \ + (__u64 __user *)&(frame)->uc.uc_sigmask, \ + label) + /* * Set up a signal frame. */ @@ -312,26 +305,16 @@ __setup_frame(int sig, struct ksignal *ksig, sigset_t *set, { struct sigframe __user *frame; void __user *restorer; - int err = 0; - void __user *fpstate = NULL; - - frame = get_sigframe(&ksig->ka, regs, sizeof(*frame), &fpstate); - - if (!access_ok(frame, sizeof(*frame))) - return -EFAULT; + void __user *fp = NULL; - if (__put_user(sig, &frame->sig)) - return -EFAULT; + frame = get_sigframe(&ksig->ka, regs, sizeof(*frame), &fp); - if (setup_sigcontext(&frame->sc, fpstate, regs, set->sig[0])) + if (!user_access_begin(frame, sizeof(*frame))) return -EFAULT; - if (_NSIG_WORDS > 1) { - if (__copy_to_user(&frame->extramask, &set->sig[1], - sizeof(frame->extramask))) - return -EFAULT; - } - + unsafe_put_user(sig, &frame->sig, Efault); + unsafe_put_sigcontext(&frame->sc, fp, regs, set, Efault); + unsafe_put_user(set->sig[1], &frame->extramask[0], Efault); if (current->mm->context.vdso) restorer = current->mm->context.vdso + vdso_image_32.sym___kernel_sigreturn; @@ -341,7 +324,7 @@ __setup_frame(int sig, struct ksignal *ksig, sigset_t *set, restorer = ksig->ka.sa.sa_restorer; /* Set up to return from userspace. */ - err |= __put_user(restorer, &frame->pretcode); + unsafe_put_user(restorer, &frame->pretcode, Efault); /* * This is popl %eax ; movl $__NR_sigreturn, %eax ; int $0x80 @@ -350,10 +333,8 @@ __setup_frame(int sig, struct ksignal *ksig, sigset_t *set, * reasons and because gdb uses it as a signature to notice * signal handler stack frames. */ - err |= __put_user(*((u64 *)&retcode), (u64 *)frame->retcode); - - if (err) - return -EFAULT; + unsafe_put_user(*((u64 *)&retcode), (u64 *)frame->retcode, Efault); + user_access_end(); /* Set up registers for signal handler */ regs->sp = (unsigned long)frame; @@ -368,6 +349,10 @@ __setup_frame(int sig, struct ksignal *ksig, sigset_t *set, regs->cs = __USER_CS; return 0; + +Efault: + user_access_end(); + return -EFAULT; } static int __setup_rt_frame(int sig, struct ksignal *ksig, @@ -375,50 +360,45 @@ static int __setup_rt_frame(int sig, struct ksignal *ksig, { struct rt_sigframe __user *frame; void __user *restorer; - int err = 0; - void __user *fpstate = NULL; + void __user *fp = NULL; - frame = get_sigframe(&ksig->ka, regs, sizeof(*frame), &fpstate); + frame = get_sigframe(&ksig->ka, regs, sizeof(*frame), &fp); - if (!access_ok(frame, sizeof(*frame))) + if (!user_access_begin(frame, sizeof(*frame))) return -EFAULT; - put_user_try { - put_user_ex(sig, &frame->sig); - put_user_ex(&frame->info, &frame->pinfo); - put_user_ex(&frame->uc, &frame->puc); + unsafe_put_user(sig, &frame->sig, Efault); + unsafe_put_user(&frame->info, &frame->pinfo, Efault); + unsafe_put_user(&frame->uc, &frame->puc, Efault); - /* Create the ucontext. */ - if (static_cpu_has(X86_FEATURE_XSAVE)) - put_user_ex(UC_FP_XSTATE, &frame->uc.uc_flags); - else - put_user_ex(0, &frame->uc.uc_flags); - put_user_ex(0, &frame->uc.uc_link); - save_altstack_ex(&frame->uc.uc_stack, regs->sp); + /* Create the ucontext. */ + if (static_cpu_has(X86_FEATURE_XSAVE)) + unsafe_put_user(UC_FP_XSTATE, &frame->uc.uc_flags, Efault); + else + unsafe_put_user(0, &frame->uc.uc_flags, Efault); + unsafe_put_user(0, &frame->uc.uc_link, Efault); + unsafe_save_altstack(&frame->uc.uc_stack, regs->sp, Efault); - /* Set up to return from userspace. */ - restorer = current->mm->context.vdso + - vdso_image_32.sym___kernel_rt_sigreturn; - if (ksig->ka.sa.sa_flags & SA_RESTORER) - restorer = ksig->ka.sa.sa_restorer; - put_user_ex(restorer, &frame->pretcode); + /* Set up to return from userspace. */ + restorer = current->mm->context.vdso + + vdso_image_32.sym___kernel_rt_sigreturn; + if (ksig->ka.sa.sa_flags & SA_RESTORER) + restorer = ksig->ka.sa.sa_restorer; + unsafe_put_user(restorer, &frame->pretcode, Efault); - /* - * This is movl $__NR_rt_sigreturn, %ax ; int $0x80 - * - * WE DO NOT USE IT ANY MORE! It's only left here for historical - * reasons and because gdb uses it as a signature to notice - * signal handler stack frames. - */ - put_user_ex(*((u64 *)&rt_retcode), (u64 *)frame->retcode); - } put_user_catch(err); + /* + * This is movl $__NR_rt_sigreturn, %ax ; int $0x80 + * + * WE DO NOT USE IT ANY MORE! It's only left here for historical + * reasons and because gdb uses it as a signature to notice + * signal handler stack frames. + */ + unsafe_put_user(*((u64 *)&rt_retcode), (u64 *)frame->retcode, Efault); + unsafe_put_sigcontext(&frame->uc.uc_mcontext, fp, regs, set, Efault); + unsafe_put_sigmask(set, frame, Efault); + user_access_end(); - err |= copy_siginfo_to_user(&frame->info, &ksig->info); - err |= setup_sigcontext(&frame->uc.uc_mcontext, fpstate, - regs, set->sig[0]); - err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set)); - - if (err) + if (copy_siginfo_to_user(&frame->info, &ksig->info)) return -EFAULT; /* Set up registers for signal handler */ @@ -434,6 +414,9 @@ static int __setup_rt_frame(int sig, struct ksignal *ksig, regs->cs = __USER_CS; return 0; +Efault: + user_access_end(); + return -EFAULT; } #else /* !CONFIG_X86_32 */ static unsigned long frame_uc_flags(struct pt_regs *regs) @@ -457,43 +440,34 @@ static int __setup_rt_frame(int sig, struct ksignal *ksig, struct rt_sigframe __user *frame; void __user *fp = NULL; unsigned long uc_flags; - int err = 0; + + /* x86-64 should always use SA_RESTORER. */ + if (!(ksig->ka.sa.sa_flags & SA_RESTORER)) + return -EFAULT; frame = get_sigframe(&ksig->ka, regs, sizeof(struct rt_sigframe), &fp); + uc_flags = frame_uc_flags(regs); - if (!access_ok(frame, sizeof(*frame))) + if (!user_access_begin(frame, sizeof(*frame))) return -EFAULT; + /* Create the ucontext. */ + unsafe_put_user(uc_flags, &frame->uc.uc_flags, Efault); + unsafe_put_user(0, &frame->uc.uc_link, Efault); + unsafe_save_altstack(&frame->uc.uc_stack, regs->sp, Efault); + + /* Set up to return from userspace. If provided, use a stub + already in userspace. */ + unsafe_put_user(ksig->ka.sa.sa_restorer, &frame->pretcode, Efault); + unsafe_put_sigcontext(&frame->uc.uc_mcontext, fp, regs, set, Efault); + unsafe_put_sigmask(set, frame, Efault); + user_access_end(); + if (ksig->ka.sa.sa_flags & SA_SIGINFO) { if (copy_siginfo_to_user(&frame->info, &ksig->info)) return -EFAULT; } - uc_flags = frame_uc_flags(regs); - - put_user_try { - /* Create the ucontext. */ - put_user_ex(uc_flags, &frame->uc.uc_flags); - put_user_ex(0, &frame->uc.uc_link); - save_altstack_ex(&frame->uc.uc_stack, regs->sp); - - /* Set up to return from userspace. If provided, use a stub - already in userspace. */ - /* x86-64 should always use SA_RESTORER. */ - if (ksig->ka.sa.sa_flags & SA_RESTORER) { - put_user_ex(ksig->ka.sa.sa_restorer, &frame->pretcode); - } else { - /* could use a vstub here */ - err |= -EFAULT; - } - } put_user_catch(err); - - err |= setup_sigcontext(&frame->uc.uc_mcontext, fp, regs, set->sig[0]); - err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set)); - - if (err) - return -EFAULT; - /* Set up registers for signal handler */ regs->di = sig; /* In case the signal handler was declared without prototypes */ @@ -530,6 +504,10 @@ static int __setup_rt_frame(int sig, struct ksignal *ksig, force_valid_ss(regs); return 0; + +Efault: + user_access_end(); + return -EFAULT; } #endif /* CONFIG_X86_32 */ @@ -541,44 +519,33 @@ static int x32_setup_rt_frame(struct ksignal *ksig, struct rt_sigframe_x32 __user *frame; unsigned long uc_flags; void __user *restorer; - int err = 0; - void __user *fpstate = NULL; - - frame = get_sigframe(&ksig->ka, regs, sizeof(*frame), &fpstate); + void __user *fp = NULL; - if (!access_ok(frame, sizeof(*frame))) + if (!(ksig->ka.sa.sa_flags & SA_RESTORER)) return -EFAULT; - if (ksig->ka.sa.sa_flags & SA_SIGINFO) { - if (__copy_siginfo_to_user32(&frame->info, &ksig->info, true)) - return -EFAULT; - } + frame = get_sigframe(&ksig->ka, regs, sizeof(*frame), &fp); uc_flags = frame_uc_flags(regs); - put_user_try { - /* Create the ucontext. */ - put_user_ex(uc_flags, &frame->uc.uc_flags); - put_user_ex(0, &frame->uc.uc_link); - compat_save_altstack_ex(&frame->uc.uc_stack, regs->sp); - put_user_ex(0, &frame->uc.uc__pad0); - - if (ksig->ka.sa.sa_flags & SA_RESTORER) { - restorer = ksig->ka.sa.sa_restorer; - } else { - /* could use a vstub here */ - restorer = NULL; - err |= -EFAULT; - } - put_user_ex(restorer, (unsigned long __user *)&frame->pretcode); - } put_user_catch(err); + if (!user_access_begin(frame, sizeof(*frame))) + return -EFAULT; - err |= setup_sigcontext(&frame->uc.uc_mcontext, fpstate, - regs, set->sig[0]); - err |= __copy_to_user(&frame->uc.uc_sigmask, set, sizeof(*set)); + /* Create the ucontext. */ + unsafe_put_user(uc_flags, &frame->uc.uc_flags, Efault); + unsafe_put_user(0, &frame->uc.uc_link, Efault); + unsafe_compat_save_altstack(&frame->uc.uc_stack, regs->sp, Efault); + unsafe_put_user(0, &frame->uc.uc__pad0, Efault); + restorer = ksig->ka.sa.sa_restorer; + unsafe_put_user(restorer, (unsigned long __user *)&frame->pretcode, Efault); + unsafe_put_sigcontext(&frame->uc.uc_mcontext, fp, regs, set, Efault); + unsafe_put_sigmask(set, frame, Efault); + user_access_end(); - if (err) - return -EFAULT; + if (ksig->ka.sa.sa_flags & SA_SIGINFO) { + if (__copy_siginfo_to_user32(&frame->info, &ksig->info, true)) + return -EFAULT; + } /* Set up registers for signal handler */ regs->sp = (unsigned long) frame; @@ -597,6 +564,11 @@ static int x32_setup_rt_frame(struct ksignal *ksig, #endif /* CONFIG_X86_X32_ABI */ return 0; +#ifdef CONFIG_X86_X32_ABI +Efault: + user_access_end(); + return -EFAULT; +#endif } /* @@ -613,9 +585,8 @@ SYSCALL_DEFINE0(sigreturn) if (!access_ok(frame, sizeof(*frame))) goto badframe; - if (__get_user(set.sig[0], &frame->sc.oldmask) || (_NSIG_WORDS > 1 - && __copy_from_user(&set.sig[1], &frame->extramask, - sizeof(frame->extramask)))) + if (__get_user(set.sig[0], &frame->sc.oldmask) || + __get_user(set.sig[1], &frame->extramask[0])) goto badframe; set_current_blocked(&set); @@ -645,7 +616,7 @@ SYSCALL_DEFINE0(rt_sigreturn) frame = (struct rt_sigframe __user *)(regs->sp - sizeof(long)); if (!access_ok(frame, sizeof(*frame))) goto badframe; - if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set))) + if (__get_user(*(__u64 *)&set, (__u64 __user *)&frame->uc.uc_sigmask)) goto badframe; if (__get_user(uc_flags, &frame->uc.uc_flags)) goto badframe; @@ -859,7 +830,7 @@ void signal_fault(struct pt_regs *regs, void __user *frame, char *where) } #ifdef CONFIG_X86_X32_ABI -asmlinkage long sys32_x32_rt_sigreturn(void) +COMPAT_SYSCALL_DEFINE0(x32_rt_sigreturn) { struct pt_regs *regs = current_pt_regs(); struct rt_sigframe_x32 __user *frame; @@ -870,7 +841,7 @@ asmlinkage long sys32_x32_rt_sigreturn(void) if (!access_ok(frame, sizeof(*frame))) goto badframe; - if (__copy_from_user(&set, &frame->uc.uc_sigmask, sizeof(set))) + if (__get_user(set.sig[0], (__u64 __user *)&frame->uc.uc_sigmask)) goto badframe; if (__get_user(uc_flags, &frame->uc.uc_flags)) goto badframe; diff --git a/arch/x86/kernel/smpboot.c b/arch/x86/kernel/smpboot.c index 69881b2d446c..fe3ab9632f3b 100644 --- a/arch/x86/kernel/smpboot.c +++ b/arch/x86/kernel/smpboot.c @@ -147,6 +147,8 @@ static inline void smpboot_restore_warm_reset_vector(void) *((volatile u32 *)phys_to_virt(TRAMPOLINE_PHYS_LOW)) = 0; } +static void init_freq_invariance(void); + /* * Report back to the Boot Processor during boot time or to the caller processor * during CPU online. @@ -183,6 +185,8 @@ static void smp_callin(void) */ set_cpu_sibling_map(raw_smp_processor_id()); + init_freq_invariance(); + /* * Get our bogomips. * Update loops_per_jiffy in cpu_data. Previous call to @@ -466,7 +470,7 @@ static bool match_smt(struct cpuinfo_x86 *c, struct cpuinfo_x86 *o) */ static const struct x86_cpu_id snc_cpu[] = { - { X86_VENDOR_INTEL, 6, INTEL_FAM6_SKYLAKE_X }, + X86_MATCH_INTEL_FAM6_MODEL(SKYLAKE_X, NULL), {} }; @@ -1337,7 +1341,7 @@ void __init native_smp_prepare_cpus(unsigned int max_cpus) set_sched_topology(x86_topology); set_cpu_sibling_map(0); - + init_freq_invariance(); smp_sanity_check(); switch (apic_intr_mode) { @@ -1434,7 +1438,7 @@ early_param("possible_cpus", _setup_possible_cpus); /* * cpu_possible_mask should be static, it cannot change as cpu's * are onlined, or offlined. The reason is per-cpu data-structures - * are allocated by some modules at init time, and dont expect to + * are allocated by some modules at init time, and don't expect to * do this dynamically on cpu arrival/departure. * cpu_present_mask on the other hand can change dynamically. * In case when cpu_hotplug is not compiled, then we resort to current @@ -1764,3 +1768,287 @@ void native_play_dead(void) } #endif + +/* + * APERF/MPERF frequency ratio computation. + * + * The scheduler wants to do frequency invariant accounting and needs a <1 + * ratio to account for the 'current' frequency, corresponding to + * freq_curr / freq_max. + * + * Since the frequency freq_curr on x86 is controlled by micro-controller and + * our P-state setting is little more than a request/hint, we need to observe + * the effective frequency 'BusyMHz', i.e. the average frequency over a time + * interval after discarding idle time. This is given by: + * + * BusyMHz = delta_APERF / delta_MPERF * freq_base + * + * where freq_base is the max non-turbo P-state. + * + * The freq_max term has to be set to a somewhat arbitrary value, because we + * can't know which turbo states will be available at a given point in time: + * it all depends on the thermal headroom of the entire package. We set it to + * the turbo level with 4 cores active. + * + * Benchmarks show that's a good compromise between the 1C turbo ratio + * (freq_curr/freq_max would rarely reach 1) and something close to freq_base, + * which would ignore the entire turbo range (a conspicuous part, making + * freq_curr/freq_max always maxed out). + * + * An exception to the heuristic above is the Atom uarch, where we choose the + * highest turbo level for freq_max since Atom's are generally oriented towards + * power efficiency. + * + * Setting freq_max to anything less than the 1C turbo ratio makes the ratio + * freq_curr / freq_max to eventually grow >1, in which case we clip it to 1. + */ + +DEFINE_STATIC_KEY_FALSE(arch_scale_freq_key); + +static DEFINE_PER_CPU(u64, arch_prev_aperf); +static DEFINE_PER_CPU(u64, arch_prev_mperf); +static u64 arch_turbo_freq_ratio = SCHED_CAPACITY_SCALE; +static u64 arch_max_freq_ratio = SCHED_CAPACITY_SCALE; + +void arch_set_max_freq_ratio(bool turbo_disabled) +{ + arch_max_freq_ratio = turbo_disabled ? SCHED_CAPACITY_SCALE : + arch_turbo_freq_ratio; +} + +static bool turbo_disabled(void) +{ + u64 misc_en; + int err; + + err = rdmsrl_safe(MSR_IA32_MISC_ENABLE, &misc_en); + if (err) + return false; + + return (misc_en & MSR_IA32_MISC_ENABLE_TURBO_DISABLE); +} + +static bool slv_set_max_freq_ratio(u64 *base_freq, u64 *turbo_freq) +{ + int err; + + err = rdmsrl_safe(MSR_ATOM_CORE_RATIOS, base_freq); + if (err) + return false; + + err = rdmsrl_safe(MSR_ATOM_CORE_TURBO_RATIOS, turbo_freq); + if (err) + return false; + + *base_freq = (*base_freq >> 16) & 0x3F; /* max P state */ + *turbo_freq = *turbo_freq & 0x3F; /* 1C turbo */ + + return true; +} + +#include <asm/cpu_device_id.h> +#include <asm/intel-family.h> + +#define ICPU(model) \ + {X86_VENDOR_INTEL, 6, model, X86_FEATURE_APERFMPERF, 0} + +static const struct x86_cpu_id has_knl_turbo_ratio_limits[] = { + ICPU(INTEL_FAM6_XEON_PHI_KNL), + ICPU(INTEL_FAM6_XEON_PHI_KNM), + {} +}; + +static const struct x86_cpu_id has_skx_turbo_ratio_limits[] = { + ICPU(INTEL_FAM6_SKYLAKE_X), + {} +}; + +static const struct x86_cpu_id has_glm_turbo_ratio_limits[] = { + ICPU(INTEL_FAM6_ATOM_GOLDMONT), + ICPU(INTEL_FAM6_ATOM_GOLDMONT_D), + ICPU(INTEL_FAM6_ATOM_GOLDMONT_PLUS), + {} +}; + +static bool knl_set_max_freq_ratio(u64 *base_freq, u64 *turbo_freq, + int num_delta_fratio) +{ + int fratio, delta_fratio, found; + int err, i; + u64 msr; + + if (!x86_match_cpu(has_knl_turbo_ratio_limits)) + return false; + + err = rdmsrl_safe(MSR_PLATFORM_INFO, base_freq); + if (err) + return false; + + *base_freq = (*base_freq >> 8) & 0xFF; /* max P state */ + + err = rdmsrl_safe(MSR_TURBO_RATIO_LIMIT, &msr); + if (err) + return false; + + fratio = (msr >> 8) & 0xFF; + i = 16; + found = 0; + do { + if (found >= num_delta_fratio) { + *turbo_freq = fratio; + return true; + } + + delta_fratio = (msr >> (i + 5)) & 0x7; + + if (delta_fratio) { + found += 1; + fratio -= delta_fratio; + } + + i += 8; + } while (i < 64); + + return true; +} + +static bool skx_set_max_freq_ratio(u64 *base_freq, u64 *turbo_freq, int size) +{ + u64 ratios, counts; + u32 group_size; + int err, i; + + err = rdmsrl_safe(MSR_PLATFORM_INFO, base_freq); + if (err) + return false; + + *base_freq = (*base_freq >> 8) & 0xFF; /* max P state */ + + err = rdmsrl_safe(MSR_TURBO_RATIO_LIMIT, &ratios); + if (err) + return false; + + err = rdmsrl_safe(MSR_TURBO_RATIO_LIMIT1, &counts); + if (err) + return false; + + for (i = 0; i < 64; i += 8) { + group_size = (counts >> i) & 0xFF; + if (group_size >= size) { + *turbo_freq = (ratios >> i) & 0xFF; + return true; + } + } + + return false; +} + +static bool core_set_max_freq_ratio(u64 *base_freq, u64 *turbo_freq) +{ + int err; + + err = rdmsrl_safe(MSR_PLATFORM_INFO, base_freq); + if (err) + return false; + + err = rdmsrl_safe(MSR_TURBO_RATIO_LIMIT, turbo_freq); + if (err) + return false; + + *base_freq = (*base_freq >> 8) & 0xFF; /* max P state */ + *turbo_freq = (*turbo_freq >> 24) & 0xFF; /* 4C turbo */ + + return true; +} + +static bool intel_set_max_freq_ratio(void) +{ + u64 base_freq, turbo_freq; + + if (slv_set_max_freq_ratio(&base_freq, &turbo_freq)) + goto out; + + if (x86_match_cpu(has_glm_turbo_ratio_limits) && + skx_set_max_freq_ratio(&base_freq, &turbo_freq, 1)) + goto out; + + if (knl_set_max_freq_ratio(&base_freq, &turbo_freq, 1)) + goto out; + + if (x86_match_cpu(has_skx_turbo_ratio_limits) && + skx_set_max_freq_ratio(&base_freq, &turbo_freq, 4)) + goto out; + + if (core_set_max_freq_ratio(&base_freq, &turbo_freq)) + goto out; + + return false; + +out: + arch_turbo_freq_ratio = div_u64(turbo_freq * SCHED_CAPACITY_SCALE, + base_freq); + arch_set_max_freq_ratio(turbo_disabled()); + return true; +} + +static void init_counter_refs(void *arg) +{ + u64 aperf, mperf; + + rdmsrl(MSR_IA32_APERF, aperf); + rdmsrl(MSR_IA32_MPERF, mperf); + + this_cpu_write(arch_prev_aperf, aperf); + this_cpu_write(arch_prev_mperf, mperf); +} + +static void init_freq_invariance(void) +{ + bool ret = false; + + if (smp_processor_id() != 0 || !boot_cpu_has(X86_FEATURE_APERFMPERF)) + return; + + if (boot_cpu_data.x86_vendor == X86_VENDOR_INTEL) + ret = intel_set_max_freq_ratio(); + + if (ret) { + on_each_cpu(init_counter_refs, NULL, 1); + static_branch_enable(&arch_scale_freq_key); + } else { + pr_debug("Couldn't determine max cpu frequency, necessary for scale-invariant accounting.\n"); + } +} + +DEFINE_PER_CPU(unsigned long, arch_freq_scale) = SCHED_CAPACITY_SCALE; + +void arch_scale_freq_tick(void) +{ + u64 freq_scale; + u64 aperf, mperf; + u64 acnt, mcnt; + + if (!arch_scale_freq_invariant()) + return; + + rdmsrl(MSR_IA32_APERF, aperf); + rdmsrl(MSR_IA32_MPERF, mperf); + + acnt = aperf - this_cpu_read(arch_prev_aperf); + mcnt = mperf - this_cpu_read(arch_prev_mperf); + if (!mcnt) + return; + + this_cpu_write(arch_prev_aperf, aperf); + this_cpu_write(arch_prev_mperf, mperf); + + acnt <<= 2*SCHED_CAPACITY_SHIFT; + mcnt *= arch_max_freq_ratio; + + freq_scale = div64_u64(acnt, mcnt); + + if (freq_scale > SCHED_CAPACITY_SCALE) + freq_scale = SCHED_CAPACITY_SCALE; + + this_cpu_write(arch_freq_scale, freq_scale); +} diff --git a/arch/x86/kernel/stacktrace.c b/arch/x86/kernel/stacktrace.c index 2d6898c2cb64..6ad43fc44556 100644 --- a/arch/x86/kernel/stacktrace.c +++ b/arch/x86/kernel/stacktrace.c @@ -96,7 +96,8 @@ struct stack_frame_user { }; static int -copy_stack_frame(const void __user *fp, struct stack_frame_user *frame) +copy_stack_frame(const struct stack_frame_user __user *fp, + struct stack_frame_user *frame) { int ret; @@ -105,7 +106,8 @@ copy_stack_frame(const void __user *fp, struct stack_frame_user *frame) ret = 1; pagefault_disable(); - if (__copy_from_user_inatomic(frame, fp, sizeof(*frame))) + if (__get_user(frame->next_fp, &fp->next_fp) || + __get_user(frame->ret_addr, &fp->ret_addr)) ret = 0; pagefault_enable(); diff --git a/arch/x86/ia32/sys_ia32.c b/arch/x86/kernel/sys_ia32.c index 21790307121e..ab03fede1422 100644 --- a/arch/x86/ia32/sys_ia32.c +++ b/arch/x86/kernel/sys_ia32.c @@ -51,20 +51,80 @@ #define AA(__x) ((unsigned long)(__x)) - -COMPAT_SYSCALL_DEFINE3(x86_truncate64, const char __user *, filename, - unsigned long, offset_low, unsigned long, offset_high) +SYSCALL_DEFINE3(ia32_truncate64, const char __user *, filename, + unsigned long, offset_low, unsigned long, offset_high) { return ksys_truncate(filename, ((loff_t) offset_high << 32) | offset_low); } -COMPAT_SYSCALL_DEFINE3(x86_ftruncate64, unsigned int, fd, - unsigned long, offset_low, unsigned long, offset_high) +SYSCALL_DEFINE3(ia32_ftruncate64, unsigned int, fd, + unsigned long, offset_low, unsigned long, offset_high) { return ksys_ftruncate(fd, ((loff_t) offset_high << 32) | offset_low); } +/* warning: next two assume little endian */ +SYSCALL_DEFINE5(ia32_pread64, unsigned int, fd, char __user *, ubuf, + u32, count, u32, poslo, u32, poshi) +{ + return ksys_pread64(fd, ubuf, count, + ((loff_t)AA(poshi) << 32) | AA(poslo)); +} + +SYSCALL_DEFINE5(ia32_pwrite64, unsigned int, fd, const char __user *, ubuf, + u32, count, u32, poslo, u32, poshi) +{ + return ksys_pwrite64(fd, ubuf, count, + ((loff_t)AA(poshi) << 32) | AA(poslo)); +} + + +/* + * Some system calls that need sign extended arguments. This could be + * done by a generic wrapper. + */ +SYSCALL_DEFINE6(ia32_fadvise64_64, int, fd, __u32, offset_low, + __u32, offset_high, __u32, len_low, __u32, len_high, + int, advice) +{ + return ksys_fadvise64_64(fd, + (((u64)offset_high)<<32) | offset_low, + (((u64)len_high)<<32) | len_low, + advice); +} + +SYSCALL_DEFINE4(ia32_readahead, int, fd, unsigned int, off_lo, + unsigned int, off_hi, size_t, count) +{ + return ksys_readahead(fd, ((u64)off_hi << 32) | off_lo, count); +} + +SYSCALL_DEFINE6(ia32_sync_file_range, int, fd, unsigned int, off_low, + unsigned int, off_hi, unsigned int, n_low, + unsigned int, n_hi, int, flags) +{ + return ksys_sync_file_range(fd, + ((u64)off_hi << 32) | off_low, + ((u64)n_hi << 32) | n_low, flags); +} + +SYSCALL_DEFINE5(ia32_fadvise64, int, fd, unsigned int, offset_lo, + unsigned int, offset_hi, size_t, len, int, advice) +{ + return ksys_fadvise64_64(fd, ((u64)offset_hi << 32) | offset_lo, + len, advice); +} + +SYSCALL_DEFINE6(ia32_fallocate, int, fd, int, mode, + unsigned int, offset_lo, unsigned int, offset_hi, + unsigned int, len_lo, unsigned int, len_hi) +{ + return ksys_fallocate(fd, mode, ((u64)offset_hi << 32) | offset_lo, + ((u64)len_hi << 32) | len_lo); +} + +#ifdef CONFIG_IA32_EMULATION /* * Another set for IA32/LFS -- x86_64 struct stat is different due to * support for 64bit inode numbers. @@ -97,7 +157,7 @@ static int cp_stat64(struct stat64 __user *ubuf, struct kstat *stat) return 0; } -COMPAT_SYSCALL_DEFINE2(x86_stat64, const char __user *, filename, +COMPAT_SYSCALL_DEFINE2(ia32_stat64, const char __user *, filename, struct stat64 __user *, statbuf) { struct kstat stat; @@ -108,7 +168,7 @@ COMPAT_SYSCALL_DEFINE2(x86_stat64, const char __user *, filename, return ret; } -COMPAT_SYSCALL_DEFINE2(x86_lstat64, const char __user *, filename, +COMPAT_SYSCALL_DEFINE2(ia32_lstat64, const char __user *, filename, struct stat64 __user *, statbuf) { struct kstat stat; @@ -118,7 +178,7 @@ COMPAT_SYSCALL_DEFINE2(x86_lstat64, const char __user *, filename, return ret; } -COMPAT_SYSCALL_DEFINE2(x86_fstat64, unsigned int, fd, +COMPAT_SYSCALL_DEFINE2(ia32_fstat64, unsigned int, fd, struct stat64 __user *, statbuf) { struct kstat stat; @@ -128,7 +188,7 @@ COMPAT_SYSCALL_DEFINE2(x86_fstat64, unsigned int, fd, return ret; } -COMPAT_SYSCALL_DEFINE4(x86_fstatat, unsigned int, dfd, +COMPAT_SYSCALL_DEFINE4(ia32_fstatat64, unsigned int, dfd, const char __user *, filename, struct stat64 __user *, statbuf, int, flag) { @@ -156,7 +216,7 @@ struct mmap_arg_struct32 { unsigned int offset; }; -COMPAT_SYSCALL_DEFINE1(x86_mmap, struct mmap_arg_struct32 __user *, arg) +COMPAT_SYSCALL_DEFINE1(ia32_mmap, struct mmap_arg_struct32 __user *, arg) { struct mmap_arg_struct32 a; @@ -170,70 +230,10 @@ COMPAT_SYSCALL_DEFINE1(x86_mmap, struct mmap_arg_struct32 __user *, arg) a.offset>>PAGE_SHIFT); } -/* warning: next two assume little endian */ -COMPAT_SYSCALL_DEFINE5(x86_pread, unsigned int, fd, char __user *, ubuf, - u32, count, u32, poslo, u32, poshi) -{ - return ksys_pread64(fd, ubuf, count, - ((loff_t)AA(poshi) << 32) | AA(poslo)); -} - -COMPAT_SYSCALL_DEFINE5(x86_pwrite, unsigned int, fd, const char __user *, ubuf, - u32, count, u32, poslo, u32, poshi) -{ - return ksys_pwrite64(fd, ubuf, count, - ((loff_t)AA(poshi) << 32) | AA(poslo)); -} - - -/* - * Some system calls that need sign extended arguments. This could be - * done by a generic wrapper. - */ -COMPAT_SYSCALL_DEFINE6(x86_fadvise64_64, int, fd, __u32, offset_low, - __u32, offset_high, __u32, len_low, __u32, len_high, - int, advice) -{ - return ksys_fadvise64_64(fd, - (((u64)offset_high)<<32) | offset_low, - (((u64)len_high)<<32) | len_low, - advice); -} - -COMPAT_SYSCALL_DEFINE4(x86_readahead, int, fd, unsigned int, off_lo, - unsigned int, off_hi, size_t, count) -{ - return ksys_readahead(fd, ((u64)off_hi << 32) | off_lo, count); -} - -COMPAT_SYSCALL_DEFINE6(x86_sync_file_range, int, fd, unsigned int, off_low, - unsigned int, off_hi, unsigned int, n_low, - unsigned int, n_hi, int, flags) -{ - return ksys_sync_file_range(fd, - ((u64)off_hi << 32) | off_low, - ((u64)n_hi << 32) | n_low, flags); -} - -COMPAT_SYSCALL_DEFINE5(x86_fadvise64, int, fd, unsigned int, offset_lo, - unsigned int, offset_hi, size_t, len, int, advice) -{ - return ksys_fadvise64_64(fd, ((u64)offset_hi << 32) | offset_lo, - len, advice); -} - -COMPAT_SYSCALL_DEFINE6(x86_fallocate, int, fd, int, mode, - unsigned int, offset_lo, unsigned int, offset_hi, - unsigned int, len_lo, unsigned int, len_hi) -{ - return ksys_fallocate(fd, mode, ((u64)offset_hi << 32) | offset_lo, - ((u64)len_hi << 32) | len_lo); -} - /* * The 32-bit clone ABI is CONFIG_CLONE_BACKWARDS */ -COMPAT_SYSCALL_DEFINE5(x86_clone, unsigned long, clone_flags, +COMPAT_SYSCALL_DEFINE5(ia32_clone, unsigned long, clone_flags, unsigned long, newsp, int __user *, parent_tidptr, unsigned long, tls_val, int __user *, child_tidptr) { @@ -252,3 +252,4 @@ COMPAT_SYSCALL_DEFINE5(x86_clone, unsigned long, clone_flags, return _do_fork(&args); } +#endif /* CONFIG_IA32_EMULATION */ diff --git a/arch/x86/kernel/sys_x86_64.c b/arch/x86/kernel/sys_x86_64.c index ca3c11a17b5a..504fa5425bce 100644 --- a/arch/x86/kernel/sys_x86_64.c +++ b/arch/x86/kernel/sys_x86_64.c @@ -21,7 +21,6 @@ #include <asm/elf.h> #include <asm/ia32.h> -#include <asm/syscalls.h> /* * Align a virtual address to avoid aliasing in the I$ on AMD F15h. diff --git a/arch/x86/kernel/time.c b/arch/x86/kernel/time.c index d8673d8a779b..106e7f87f534 100644 --- a/arch/x86/kernel/time.c +++ b/arch/x86/kernel/time.c @@ -62,19 +62,16 @@ static irqreturn_t timer_interrupt(int irq, void *dev_id) return IRQ_HANDLED; } -static struct irqaction irq0 = { - .handler = timer_interrupt, - .flags = IRQF_NOBALANCING | IRQF_IRQPOLL | IRQF_TIMER, - .name = "timer" -}; - static void __init setup_default_timer_irq(void) { + unsigned long flags = IRQF_NOBALANCING | IRQF_IRQPOLL | IRQF_TIMER; + /* - * Unconditionally register the legacy timer; even without legacy - * PIC/PIT we need this for the HPET0 in legacy replacement mode. + * Unconditionally register the legacy timer interrupt; even + * without legacy PIC/PIT we need this for the HPET0 in legacy + * replacement mode. */ - if (setup_irq(0, &irq0)) + if (request_irq(0, timer_interrupt, flags, "timer", NULL)) pr_info("Failed to register legacy timer interrupt\n"); } @@ -122,18 +119,12 @@ void __init time_init(void) */ void clocksource_arch_init(struct clocksource *cs) { - if (cs->archdata.vclock_mode == VCLOCK_NONE) + if (cs->vdso_clock_mode == VDSO_CLOCKMODE_NONE) return; - if (cs->archdata.vclock_mode > VCLOCK_MAX) { - pr_warn("clocksource %s registered with invalid vclock_mode %d. Disabling vclock.\n", - cs->name, cs->archdata.vclock_mode); - cs->archdata.vclock_mode = VCLOCK_NONE; - } - if (cs->mask != CLOCKSOURCE_MASK(64)) { - pr_warn("clocksource %s registered with invalid mask %016llx. Disabling vclock.\n", + pr_warn("clocksource %s registered with invalid mask %016llx for VDSO. Disabling VDSO support.\n", cs->name, cs->mask); - cs->archdata.vclock_mode = VCLOCK_NONE; + cs->vdso_clock_mode = VDSO_CLOCKMODE_NONE; } } diff --git a/arch/x86/kernel/topology.c b/arch/x86/kernel/topology.c index be5bc2e47c71..b8810ebbc8ae 100644 --- a/arch/x86/kernel/topology.c +++ b/arch/x86/kernel/topology.c @@ -59,39 +59,29 @@ __setup("cpu0_hotplug", enable_cpu0_hotplug); */ int _debug_hotplug_cpu(int cpu, int action) { - struct device *dev = get_cpu_device(cpu); int ret; if (!cpu_is_hotpluggable(cpu)) return -EINVAL; - lock_device_hotplug(); - switch (action) { case 0: - ret = cpu_down(cpu); - if (!ret) { + ret = remove_cpu(cpu); + if (!ret) pr_info("DEBUG_HOTPLUG_CPU0: CPU %u is now offline\n", cpu); - dev->offline = true; - kobject_uevent(&dev->kobj, KOBJ_OFFLINE); - } else + else pr_debug("Can't offline CPU%d.\n", cpu); break; case 1: - ret = cpu_up(cpu); - if (!ret) { - dev->offline = false; - kobject_uevent(&dev->kobj, KOBJ_ONLINE); - } else { + ret = add_cpu(cpu); + if (ret) pr_debug("Can't online CPU%d.\n", cpu); - } + break; default: ret = -EINVAL; } - unlock_device_hotplug(); - return ret; } diff --git a/arch/x86/kernel/traps.c b/arch/x86/kernel/traps.c index 6ef00eb6fbb9..d54cffdc7cac 100644 --- a/arch/x86/kernel/traps.c +++ b/arch/x86/kernel/traps.c @@ -46,6 +46,7 @@ #include <asm/traps.h> #include <asm/desc.h> #include <asm/fpu/internal.h> +#include <asm/cpu.h> #include <asm/cpu_entry_area.h> #include <asm/mce.h> #include <asm/fixmap.h> @@ -242,7 +243,6 @@ do_trap(int trapnr, int signr, char *str, struct pt_regs *regs, { struct task_struct *tsk = current; - if (!do_trap_no_signal(tsk, trapnr, str, regs, error_code)) return; @@ -288,9 +288,29 @@ DO_ERROR(X86_TRAP_OLD_MF, SIGFPE, 0, NULL, "coprocessor segment overru DO_ERROR(X86_TRAP_TS, SIGSEGV, 0, NULL, "invalid TSS", invalid_TSS) DO_ERROR(X86_TRAP_NP, SIGBUS, 0, NULL, "segment not present", segment_not_present) DO_ERROR(X86_TRAP_SS, SIGBUS, 0, NULL, "stack segment", stack_segment) -DO_ERROR(X86_TRAP_AC, SIGBUS, BUS_ADRALN, NULL, "alignment check", alignment_check) #undef IP +dotraplinkage void do_alignment_check(struct pt_regs *regs, long error_code) +{ + char *str = "alignment check"; + + RCU_LOCKDEP_WARN(!rcu_is_watching(), "entry code didn't wake RCU"); + + if (notify_die(DIE_TRAP, str, regs, error_code, X86_TRAP_AC, SIGBUS) == NOTIFY_STOP) + return; + + if (!user_mode(regs)) + die("Split lock detected\n", regs, error_code); + + local_irq_enable(); + + if (handle_user_split_lock(regs, error_code)) + return; + + do_trap(X86_TRAP_AC, SIGBUS, "alignment check", regs, + error_code, BUS_ADRALN, NULL); +} + #ifdef CONFIG_VMAP_STACK __visible void __noreturn handle_stack_overflow(const char *message, struct pt_regs *regs, @@ -572,14 +592,20 @@ dotraplinkage void notrace do_int3(struct pt_regs *regs, long error_code) return; /* - * Use ist_enter despite the fact that we don't use an IST stack. - * We can be called from a kprobe in non-CONTEXT_KERNEL kernel - * mode or even during context tracking state changes. + * Unlike any other non-IST entry, we can be called from a kprobe in + * non-CONTEXT_KERNEL kernel mode or even during context tracking + * state changes. Make sure that we wake up RCU even if we're coming + * from kernel code. * - * This means that we can't schedule. That's okay. + * This means that we can't schedule even if we came from a + * preemptible kernel context. That's okay. */ - ist_enter(regs); + if (!user_mode(regs)) { + rcu_nmi_enter(); + preempt_disable(); + } RCU_LOCKDEP_WARN(!rcu_is_watching(), "entry code didn't wake RCU"); + #ifdef CONFIG_KGDB_LOW_LEVEL_TRAP if (kgdb_ll_trap(DIE_INT3, "int3", regs, error_code, X86_TRAP_BP, SIGTRAP) == NOTIFY_STOP) @@ -600,7 +626,10 @@ dotraplinkage void notrace do_int3(struct pt_regs *regs, long error_code) cond_local_irq_disable(regs); exit: - ist_exit(regs); + if (!user_mode(regs)) { + preempt_enable_no_resched(); + rcu_nmi_exit(); + } } NOKPROBE_SYMBOL(do_int3); @@ -862,7 +891,25 @@ do_simd_coprocessor_error(struct pt_regs *regs, long error_code) dotraplinkage void do_spurious_interrupt_bug(struct pt_regs *regs, long error_code) { - cond_local_irq_enable(regs); + /* + * This addresses a Pentium Pro Erratum: + * + * PROBLEM: If the APIC subsystem is configured in mixed mode with + * Virtual Wire mode implemented through the local APIC, an + * interrupt vector of 0Fh (Intel reserved encoding) may be + * generated by the local APIC (Int 15). This vector may be + * generated upon receipt of a spurious interrupt (an interrupt + * which is removed before the system receives the INTA sequence) + * instead of the programmed 8259 spurious interrupt vector. + * + * IMPLICATION: The spurious interrupt vector programmed in the + * 8259 is normally handled by an operating system's spurious + * interrupt handler. However, a vector of 0Fh is unknown to some + * operating systems, which would crash if this erratum occurred. + * + * In theory this could be limited to 32bit, but the handler is not + * hurting and who knows which other CPUs suffer from this. + */ } dotraplinkage void diff --git a/arch/x86/kernel/tsc.c b/arch/x86/kernel/tsc.c index 7e322e2daaf5..fdd4c1078632 100644 --- a/arch/x86/kernel/tsc.c +++ b/arch/x86/kernel/tsc.c @@ -477,7 +477,7 @@ static unsigned long pit_calibrate_tsc(u32 latch, unsigned long ms, int loopmin) * transition from one expected value to another with a fairly * high accuracy, and we didn't miss any events. We can thus * use the TSC value at the transitions to calculate a pretty - * good value for the TSC frequencty. + * good value for the TSC frequency. */ static inline int pit_verify_msb(unsigned char val) { @@ -1108,17 +1108,24 @@ static void tsc_cs_tick_stable(struct clocksource *cs) sched_clock_tick_stable(); } +static int tsc_cs_enable(struct clocksource *cs) +{ + vclocks_set_used(VDSO_CLOCKMODE_TSC); + return 0; +} + /* * .mask MUST be CLOCKSOURCE_MASK(64). See comment above read_tsc() */ static struct clocksource clocksource_tsc_early = { - .name = "tsc-early", - .rating = 299, - .read = read_tsc, - .mask = CLOCKSOURCE_MASK(64), - .flags = CLOCK_SOURCE_IS_CONTINUOUS | + .name = "tsc-early", + .rating = 299, + .read = read_tsc, + .mask = CLOCKSOURCE_MASK(64), + .flags = CLOCK_SOURCE_IS_CONTINUOUS | CLOCK_SOURCE_MUST_VERIFY, - .archdata = { .vclock_mode = VCLOCK_TSC }, + .vdso_clock_mode = VDSO_CLOCKMODE_TSC, + .enable = tsc_cs_enable, .resume = tsc_resume, .mark_unstable = tsc_cs_mark_unstable, .tick_stable = tsc_cs_tick_stable, @@ -1131,14 +1138,15 @@ static struct clocksource clocksource_tsc_early = { * been found good. */ static struct clocksource clocksource_tsc = { - .name = "tsc", - .rating = 300, - .read = read_tsc, - .mask = CLOCKSOURCE_MASK(64), - .flags = CLOCK_SOURCE_IS_CONTINUOUS | + .name = "tsc", + .rating = 300, + .read = read_tsc, + .mask = CLOCKSOURCE_MASK(64), + .flags = CLOCK_SOURCE_IS_CONTINUOUS | CLOCK_SOURCE_VALID_FOR_HRES | CLOCK_SOURCE_MUST_VERIFY, - .archdata = { .vclock_mode = VCLOCK_TSC }, + .vdso_clock_mode = VDSO_CLOCKMODE_TSC, + .enable = tsc_cs_enable, .resume = tsc_resume, .mark_unstable = tsc_cs_mark_unstable, .tick_stable = tsc_cs_tick_stable, diff --git a/arch/x86/kernel/tsc_msr.c b/arch/x86/kernel/tsc_msr.c index e0cbe4f2af49..4fec6f3a1858 100644 --- a/arch/x86/kernel/tsc_msr.c +++ b/arch/x86/kernel/tsc_msr.c @@ -15,18 +15,46 @@ #include <asm/param.h> #include <asm/tsc.h> -#define MAX_NUM_FREQS 9 +#define MAX_NUM_FREQS 16 /* 4 bits to select the frequency */ + +/* + * The frequency numbers in the SDM are e.g. 83.3 MHz, which does not contain a + * lot of accuracy which leads to clock drift. As far as we know Bay Trail SoCs + * use a 25 MHz crystal and Cherry Trail uses a 19.2 MHz crystal, the crystal + * is the source clk for a root PLL which outputs 1600 and 100 MHz. It is + * unclear if the root PLL outputs are used directly by the CPU clock PLL or + * if there is another PLL in between. + * This does not matter though, we can model the chain of PLLs as a single PLL + * with a quotient equal to the quotients of all PLLs in the chain multiplied. + * So we can create a simplified model of the CPU clock setup using a reference + * clock of 100 MHz plus a quotient which gets us as close to the frequency + * from the SDM as possible. + * For the 83.3 MHz example from above this would give us 100 MHz * 5 / 6 = + * 83 and 1/3 MHz, which matches exactly what has been measured on actual hw. + */ +#define TSC_REFERENCE_KHZ 100000 + +struct muldiv { + u32 multiplier; + u32 divider; +}; /* * If MSR_PERF_STAT[31] is set, the maximum resolved bus ratio can be * read in MSR_PLATFORM_ID[12:8], otherwise in MSR_PERF_STAT[44:40]. * Unfortunately some Intel Atom SoCs aren't quite compliant to this, * so we need manually differentiate SoC families. This is what the - * field msr_plat does. + * field use_msr_plat does. */ struct freq_desc { - u8 msr_plat; /* 1: use MSR_PLATFORM_INFO, 0: MSR_IA32_PERF_STATUS */ + bool use_msr_plat; + struct muldiv muldiv[MAX_NUM_FREQS]; + /* + * Some CPU frequencies in the SDM do not map to known PLL freqs, in + * that case the muldiv array is empty and the freqs array is used. + */ u32 freqs[MAX_NUM_FREQS]; + u32 mask; }; /* @@ -35,41 +63,91 @@ struct freq_desc { * by MSR based on SDM. */ static const struct freq_desc freq_desc_pnw = { - 0, { 0, 0, 0, 0, 0, 99840, 0, 83200 } + .use_msr_plat = false, + .freqs = { 0, 0, 0, 0, 0, 99840, 0, 83200 }, + .mask = 0x07, }; static const struct freq_desc freq_desc_clv = { - 0, { 0, 133200, 0, 0, 0, 99840, 0, 83200 } + .use_msr_plat = false, + .freqs = { 0, 133200, 0, 0, 0, 99840, 0, 83200 }, + .mask = 0x07, }; +/* + * Bay Trail SDM MSR_FSB_FREQ frequencies simplified PLL model: + * 000: 100 * 5 / 6 = 83.3333 MHz + * 001: 100 * 1 / 1 = 100.0000 MHz + * 010: 100 * 4 / 3 = 133.3333 MHz + * 011: 100 * 7 / 6 = 116.6667 MHz + * 100: 100 * 4 / 5 = 80.0000 MHz + */ static const struct freq_desc freq_desc_byt = { - 1, { 83300, 100000, 133300, 116700, 80000, 0, 0, 0 } + .use_msr_plat = true, + .muldiv = { { 5, 6 }, { 1, 1 }, { 4, 3 }, { 7, 6 }, + { 4, 5 } }, + .mask = 0x07, }; +/* + * Cherry Trail SDM MSR_FSB_FREQ frequencies simplified PLL model: + * 0000: 100 * 5 / 6 = 83.3333 MHz + * 0001: 100 * 1 / 1 = 100.0000 MHz + * 0010: 100 * 4 / 3 = 133.3333 MHz + * 0011: 100 * 7 / 6 = 116.6667 MHz + * 0100: 100 * 4 / 5 = 80.0000 MHz + * 0101: 100 * 14 / 15 = 93.3333 MHz + * 0110: 100 * 9 / 10 = 90.0000 MHz + * 0111: 100 * 8 / 9 = 88.8889 MHz + * 1000: 100 * 7 / 8 = 87.5000 MHz + */ static const struct freq_desc freq_desc_cht = { - 1, { 83300, 100000, 133300, 116700, 80000, 93300, 90000, 88900, 87500 } + .use_msr_plat = true, + .muldiv = { { 5, 6 }, { 1, 1 }, { 4, 3 }, { 7, 6 }, + { 4, 5 }, { 14, 15 }, { 9, 10 }, { 8, 9 }, + { 7, 8 } }, + .mask = 0x0f, }; +/* + * Merriefield SDM MSR_FSB_FREQ frequencies simplified PLL model: + * 0001: 100 * 1 / 1 = 100.0000 MHz + * 0010: 100 * 4 / 3 = 133.3333 MHz + */ static const struct freq_desc freq_desc_tng = { - 1, { 0, 100000, 133300, 0, 0, 0, 0, 0 } + .use_msr_plat = true, + .muldiv = { { 0, 0 }, { 1, 1 }, { 4, 3 } }, + .mask = 0x07, }; +/* + * Moorefield SDM MSR_FSB_FREQ frequencies simplified PLL model: + * 0000: 100 * 5 / 6 = 83.3333 MHz + * 0001: 100 * 1 / 1 = 100.0000 MHz + * 0010: 100 * 4 / 3 = 133.3333 MHz + * 0011: 100 * 1 / 1 = 100.0000 MHz + */ static const struct freq_desc freq_desc_ann = { - 1, { 83300, 100000, 133300, 100000, 0, 0, 0, 0 } + .use_msr_plat = true, + .muldiv = { { 5, 6 }, { 1, 1 }, { 4, 3 }, { 1, 1 } }, + .mask = 0x0f, }; +/* 24 MHz crystal? : 24 * 13 / 4 = 78 MHz */ static const struct freq_desc freq_desc_lgm = { - 1, { 78000, 78000, 78000, 78000, 78000, 78000, 78000, 78000 } + .use_msr_plat = true, + .freqs = { 78000, 78000, 78000, 78000, 78000, 78000, 78000, 78000 }, + .mask = 0x0f, }; static const struct x86_cpu_id tsc_msr_cpu_ids[] = { - INTEL_CPU_FAM6(ATOM_SALTWELL_MID, freq_desc_pnw), - INTEL_CPU_FAM6(ATOM_SALTWELL_TABLET, freq_desc_clv), - INTEL_CPU_FAM6(ATOM_SILVERMONT, freq_desc_byt), - INTEL_CPU_FAM6(ATOM_SILVERMONT_MID, freq_desc_tng), - INTEL_CPU_FAM6(ATOM_AIRMONT, freq_desc_cht), - INTEL_CPU_FAM6(ATOM_AIRMONT_MID, freq_desc_ann), - INTEL_CPU_FAM6(ATOM_AIRMONT_NP, freq_desc_lgm), + X86_MATCH_INTEL_FAM6_MODEL(ATOM_SALTWELL_MID, &freq_desc_pnw), + X86_MATCH_INTEL_FAM6_MODEL(ATOM_SALTWELL_TABLET,&freq_desc_clv), + X86_MATCH_INTEL_FAM6_MODEL(ATOM_SILVERMONT, &freq_desc_byt), + X86_MATCH_INTEL_FAM6_MODEL(ATOM_SILVERMONT_MID, &freq_desc_tng), + X86_MATCH_INTEL_FAM6_MODEL(ATOM_AIRMONT, &freq_desc_cht), + X86_MATCH_INTEL_FAM6_MODEL(ATOM_AIRMONT_MID, &freq_desc_ann), + X86_MATCH_INTEL_FAM6_MODEL(ATOM_AIRMONT_NP, &freq_desc_lgm), {} }; @@ -81,17 +159,19 @@ static const struct x86_cpu_id tsc_msr_cpu_ids[] = { */ unsigned long cpu_khz_from_msr(void) { - u32 lo, hi, ratio, freq; + u32 lo, hi, ratio, freq, tscref; const struct freq_desc *freq_desc; const struct x86_cpu_id *id; + const struct muldiv *md; unsigned long res; + int index; id = x86_match_cpu(tsc_msr_cpu_ids); if (!id) return 0; freq_desc = (struct freq_desc *)id->driver_data; - if (freq_desc->msr_plat) { + if (freq_desc->use_msr_plat) { rdmsr(MSR_PLATFORM_INFO, lo, hi); ratio = (lo >> 8) & 0xff; } else { @@ -101,12 +181,28 @@ unsigned long cpu_khz_from_msr(void) /* Get FSB FREQ ID */ rdmsr(MSR_FSB_FREQ, lo, hi); + index = lo & freq_desc->mask; + md = &freq_desc->muldiv[index]; - /* Map CPU reference clock freq ID(0-7) to CPU reference clock freq(KHz) */ - freq = freq_desc->freqs[lo & 0x7]; + /* + * Note this also catches cases where the index points to an unpopulated + * part of muldiv, in that case the else will set freq and res to 0. + */ + if (md->divider) { + tscref = TSC_REFERENCE_KHZ * md->multiplier; + freq = DIV_ROUND_CLOSEST(tscref, md->divider); + /* + * Multiplying by ratio before the division has better + * accuracy than just calculating freq * ratio. + */ + res = DIV_ROUND_CLOSEST(tscref * ratio, md->divider); + } else { + freq = freq_desc->freqs[index]; + res = freq * ratio; + } - /* TSC frequency = maximum resolved freq * maximum resolved bus ratio */ - res = freq * ratio; + if (freq == 0) + pr_err("Error MSR_FSB_FREQ index %d is unknown\n", index); #ifdef CONFIG_X86_LOCAL_APIC lapic_timer_period = (freq * 1000) / HZ; diff --git a/arch/x86/kernel/tsc_sync.c b/arch/x86/kernel/tsc_sync.c index 32a818764e03..3d3c761eb74a 100644 --- a/arch/x86/kernel/tsc_sync.c +++ b/arch/x86/kernel/tsc_sync.c @@ -295,7 +295,7 @@ static cycles_t check_tsc_warp(unsigned int timeout) * But as the TSC is per-logical CPU and can potentially be modified wrongly * by the bios, TSC sync test for smaller duration should be able * to catch such errors. Also this will catch the condition where all the - * cores in the socket doesn't get reset at the same time. + * cores in the socket don't get reset at the same time. */ static inline unsigned int loop_timeout(int cpu) { diff --git a/arch/x86/kernel/vm86_32.c b/arch/x86/kernel/vm86_32.c index 91d55454e702..47a8676c7395 100644 --- a/arch/x86/kernel/vm86_32.c +++ b/arch/x86/kernel/vm86_32.c @@ -98,7 +98,6 @@ void save_v86_state(struct kernel_vm86_regs *regs, int retval) struct task_struct *tsk = current; struct vm86plus_struct __user *user; struct vm86 *vm86 = current->thread.vm86; - long err = 0; /* * This gets called from entry.S with interrupts disabled, but @@ -114,37 +113,30 @@ void save_v86_state(struct kernel_vm86_regs *regs, int retval) set_flags(regs->pt.flags, VEFLAGS, X86_EFLAGS_VIF | vm86->veflags_mask); user = vm86->user_vm86; - if (!access_ok(user, vm86->vm86plus.is_vm86pus ? + if (!user_access_begin(user, vm86->vm86plus.is_vm86pus ? sizeof(struct vm86plus_struct) : - sizeof(struct vm86_struct))) { - pr_alert("could not access userspace vm86 info\n"); - do_exit(SIGSEGV); - } - - put_user_try { - put_user_ex(regs->pt.bx, &user->regs.ebx); - put_user_ex(regs->pt.cx, &user->regs.ecx); - put_user_ex(regs->pt.dx, &user->regs.edx); - put_user_ex(regs->pt.si, &user->regs.esi); - put_user_ex(regs->pt.di, &user->regs.edi); - put_user_ex(regs->pt.bp, &user->regs.ebp); - put_user_ex(regs->pt.ax, &user->regs.eax); - put_user_ex(regs->pt.ip, &user->regs.eip); - put_user_ex(regs->pt.cs, &user->regs.cs); - put_user_ex(regs->pt.flags, &user->regs.eflags); - put_user_ex(regs->pt.sp, &user->regs.esp); - put_user_ex(regs->pt.ss, &user->regs.ss); - put_user_ex(regs->es, &user->regs.es); - put_user_ex(regs->ds, &user->regs.ds); - put_user_ex(regs->fs, &user->regs.fs); - put_user_ex(regs->gs, &user->regs.gs); - - put_user_ex(vm86->screen_bitmap, &user->screen_bitmap); - } put_user_catch(err); - if (err) { - pr_alert("could not access userspace vm86 info\n"); - do_exit(SIGSEGV); - } + sizeof(struct vm86_struct))) + goto Efault; + + unsafe_put_user(regs->pt.bx, &user->regs.ebx, Efault_end); + unsafe_put_user(regs->pt.cx, &user->regs.ecx, Efault_end); + unsafe_put_user(regs->pt.dx, &user->regs.edx, Efault_end); + unsafe_put_user(regs->pt.si, &user->regs.esi, Efault_end); + unsafe_put_user(regs->pt.di, &user->regs.edi, Efault_end); + unsafe_put_user(regs->pt.bp, &user->regs.ebp, Efault_end); + unsafe_put_user(regs->pt.ax, &user->regs.eax, Efault_end); + unsafe_put_user(regs->pt.ip, &user->regs.eip, Efault_end); + unsafe_put_user(regs->pt.cs, &user->regs.cs, Efault_end); + unsafe_put_user(regs->pt.flags, &user->regs.eflags, Efault_end); + unsafe_put_user(regs->pt.sp, &user->regs.esp, Efault_end); + unsafe_put_user(regs->pt.ss, &user->regs.ss, Efault_end); + unsafe_put_user(regs->es, &user->regs.es, Efault_end); + unsafe_put_user(regs->ds, &user->regs.ds, Efault_end); + unsafe_put_user(regs->fs, &user->regs.fs, Efault_end); + unsafe_put_user(regs->gs, &user->regs.gs, Efault_end); + unsafe_put_user(vm86->screen_bitmap, &user->screen_bitmap, Efault_end); + + user_access_end(); preempt_disable(); tsk->thread.sp0 = vm86->saved_sp0; @@ -159,6 +151,13 @@ void save_v86_state(struct kernel_vm86_regs *regs, int retval) lazy_load_gs(vm86->regs32.gs); regs->pt.ax = retval; + return; + +Efault_end: + user_access_end(); +Efault: + pr_alert("could not access userspace vm86 info\n"); + do_exit(SIGSEGV); } static void mark_screen_rdonly(struct mm_struct *mm) @@ -243,6 +242,7 @@ static long do_sys_vm86(struct vm86plus_struct __user *user_vm86, bool plus) struct kernel_vm86_regs vm86regs; struct pt_regs *regs = current_pt_regs(); unsigned long err = 0; + struct vm86_struct v; err = security_mmap_addr(0); if (err) { @@ -278,39 +278,32 @@ static long do_sys_vm86(struct vm86plus_struct __user *user_vm86, bool plus) if (vm86->saved_sp0) return -EPERM; - if (!access_ok(user_vm86, plus ? - sizeof(struct vm86_struct) : - sizeof(struct vm86plus_struct))) + if (copy_from_user(&v, user_vm86, + offsetof(struct vm86_struct, int_revectored))) return -EFAULT; memset(&vm86regs, 0, sizeof(vm86regs)); - get_user_try { - unsigned short seg; - get_user_ex(vm86regs.pt.bx, &user_vm86->regs.ebx); - get_user_ex(vm86regs.pt.cx, &user_vm86->regs.ecx); - get_user_ex(vm86regs.pt.dx, &user_vm86->regs.edx); - get_user_ex(vm86regs.pt.si, &user_vm86->regs.esi); - get_user_ex(vm86regs.pt.di, &user_vm86->regs.edi); - get_user_ex(vm86regs.pt.bp, &user_vm86->regs.ebp); - get_user_ex(vm86regs.pt.ax, &user_vm86->regs.eax); - get_user_ex(vm86regs.pt.ip, &user_vm86->regs.eip); - get_user_ex(seg, &user_vm86->regs.cs); - vm86regs.pt.cs = seg; - get_user_ex(vm86regs.pt.flags, &user_vm86->regs.eflags); - get_user_ex(vm86regs.pt.sp, &user_vm86->regs.esp); - get_user_ex(seg, &user_vm86->regs.ss); - vm86regs.pt.ss = seg; - get_user_ex(vm86regs.es, &user_vm86->regs.es); - get_user_ex(vm86regs.ds, &user_vm86->regs.ds); - get_user_ex(vm86regs.fs, &user_vm86->regs.fs); - get_user_ex(vm86regs.gs, &user_vm86->regs.gs); - - get_user_ex(vm86->flags, &user_vm86->flags); - get_user_ex(vm86->screen_bitmap, &user_vm86->screen_bitmap); - get_user_ex(vm86->cpu_type, &user_vm86->cpu_type); - } get_user_catch(err); - if (err) - return err; + + vm86regs.pt.bx = v.regs.ebx; + vm86regs.pt.cx = v.regs.ecx; + vm86regs.pt.dx = v.regs.edx; + vm86regs.pt.si = v.regs.esi; + vm86regs.pt.di = v.regs.edi; + vm86regs.pt.bp = v.regs.ebp; + vm86regs.pt.ax = v.regs.eax; + vm86regs.pt.ip = v.regs.eip; + vm86regs.pt.cs = v.regs.cs; + vm86regs.pt.flags = v.regs.eflags; + vm86regs.pt.sp = v.regs.esp; + vm86regs.pt.ss = v.regs.ss; + vm86regs.es = v.regs.es; + vm86regs.ds = v.regs.ds; + vm86regs.fs = v.regs.fs; + vm86regs.gs = v.regs.gs; + + vm86->flags = v.flags; + vm86->screen_bitmap = v.screen_bitmap; + vm86->cpu_type = v.cpu_type; if (copy_from_user(&vm86->int_revectored, &user_vm86->int_revectored, diff --git a/arch/x86/kernel/vmlinux.lds.S b/arch/x86/kernel/vmlinux.lds.S index e3296aa028fe..1bf7e312361f 100644 --- a/arch/x86/kernel/vmlinux.lds.S +++ b/arch/x86/kernel/vmlinux.lds.S @@ -21,6 +21,7 @@ #define LOAD_OFFSET __START_KERNEL_map #endif +#define RUNTIME_DISCARD_EXIT #define EMITS_PT_NOTE #define RO_EXCEPTION_TABLE_ALIGN 16 @@ -313,8 +314,8 @@ SECTIONS . = ALIGN(8); /* - * .exit.text is discard at runtime, not link time, to deal with - * references from .altinstructions and .eh_frame + * .exit.text is discarded at runtime, not link time, to deal with + * references from .altinstructions */ .exit.text : AT(ADDR(.exit.text) - LOAD_OFFSET) { EXIT_TEXT @@ -412,9 +413,6 @@ SECTIONS DWARF_DEBUG DISCARDS - /DISCARD/ : { - *(.eh_frame) - } } diff --git a/arch/x86/kvm/Kconfig b/arch/x86/kvm/Kconfig index 1bb4927030af..9fea0757db92 100644 --- a/arch/x86/kvm/Kconfig +++ b/arch/x86/kvm/Kconfig @@ -68,7 +68,7 @@ config KVM_WERROR depends on (X86_64 && !KASAN) || !COMPILE_TEST depends on EXPERT help - Add -Werror to the build flags for (and only for) i915.ko. + Add -Werror to the build flags for KVM. If in doubt, say "N". diff --git a/arch/x86/kvm/emulate.c b/arch/x86/kvm/emulate.c index dd19fb3539e0..bc00642e5d3b 100644 --- a/arch/x86/kvm/emulate.c +++ b/arch/x86/kvm/emulate.c @@ -5173,6 +5173,7 @@ int x86_decode_insn(struct x86_emulate_ctxt *ctxt, void *insn, int insn_len) ctxt->fetch.ptr = ctxt->fetch.data; ctxt->fetch.end = ctxt->fetch.data + insn_len; ctxt->opcode_len = 1; + ctxt->intercept = x86_intercept_none; if (insn_len > 0) memcpy(ctxt->fetch.data, insn, insn_len); else { diff --git a/arch/x86/kvm/ioapic.c b/arch/x86/kvm/ioapic.c index 7668fed1ce65..750ff0b29404 100644 --- a/arch/x86/kvm/ioapic.c +++ b/arch/x86/kvm/ioapic.c @@ -378,12 +378,15 @@ static void ioapic_write_indirect(struct kvm_ioapic *ioapic, u32 val) if (e->fields.delivery_mode == APIC_DM_FIXED) { struct kvm_lapic_irq irq; - irq.shorthand = APIC_DEST_NOSHORT; irq.vector = e->fields.vector; irq.delivery_mode = e->fields.delivery_mode << 8; - irq.dest_id = e->fields.dest_id; irq.dest_mode = kvm_lapic_irq_dest_mode(!!e->fields.dest_mode); + irq.level = false; + irq.trig_mode = e->fields.trig_mode; + irq.shorthand = APIC_DEST_NOSHORT; + irq.dest_id = e->fields.dest_id; + irq.msi_redir_hint = false; bitmap_zero(&vcpu_bitmap, 16); kvm_bitmap_or_dest_vcpus(ioapic->kvm, &irq, &vcpu_bitmap); diff --git a/arch/x86/kvm/lapic.c b/arch/x86/kvm/lapic.c index e3099c642fec..7356a56e6282 100644 --- a/arch/x86/kvm/lapic.c +++ b/arch/x86/kvm/lapic.c @@ -1445,6 +1445,8 @@ static void limit_periodic_timer_frequency(struct kvm_lapic *apic) } } +static void cancel_hv_timer(struct kvm_lapic *apic); + static void apic_update_lvtt(struct kvm_lapic *apic) { u32 timer_mode = kvm_lapic_get_reg(apic, APIC_LVTT) & @@ -1454,6 +1456,10 @@ static void apic_update_lvtt(struct kvm_lapic *apic) if (apic_lvtt_tscdeadline(apic) != (timer_mode == APIC_LVT_TIMER_TSCDEADLINE)) { hrtimer_cancel(&apic->lapic_timer.timer); + preempt_disable(); + if (apic->lapic_timer.hv_timer_in_use) + cancel_hv_timer(apic); + preempt_enable(); kvm_lapic_set_reg(apic, APIC_TMICT, 0); apic->lapic_timer.period = 0; apic->lapic_timer.tscdeadline = 0; @@ -1715,7 +1721,7 @@ static void start_sw_period(struct kvm_lapic *apic) hrtimer_start(&apic->lapic_timer.timer, apic->lapic_timer.target_expiration, - HRTIMER_MODE_ABS); + HRTIMER_MODE_ABS_HARD); } bool kvm_lapic_hv_timer_in_use(struct kvm_vcpu *vcpu) diff --git a/arch/x86/kvm/mmu/paging_tmpl.h b/arch/x86/kvm/mmu/paging_tmpl.h index e4c8a4cbf407..21a3320f166a 100644 --- a/arch/x86/kvm/mmu/paging_tmpl.h +++ b/arch/x86/kvm/mmu/paging_tmpl.h @@ -400,7 +400,7 @@ retry_walk: goto error; ptep_user = (pt_element_t __user *)((void *)host_addr + offset); - if (unlikely(__copy_from_user(&pte, ptep_user, sizeof(pte)))) + if (unlikely(__get_user(pte, ptep_user))) goto error; walker->ptep_user[walker->level - 1] = ptep_user; diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 24c0b2ba8fb9..216364cb65a3 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -48,6 +48,7 @@ #include <asm/kvm_para.h> #include <asm/irq_remapping.h> #include <asm/spec-ctrl.h> +#include <asm/cpu_device_id.h> #include <asm/virtext.h> #include "trace.h" @@ -59,7 +60,7 @@ MODULE_LICENSE("GPL"); #ifdef MODULE static const struct x86_cpu_id svm_cpu_id[] = { - X86_FEATURE_MATCH(X86_FEATURE_SVM), + X86_MATCH_FEATURE(X86_FEATURE_SVM, NULL), {} }; MODULE_DEVICE_TABLE(x86cpu, svm_cpu_id); @@ -1933,14 +1934,6 @@ static void sev_clflush_pages(struct page *pages[], unsigned long npages) static void __unregister_enc_region_locked(struct kvm *kvm, struct enc_region *region) { - /* - * The guest may change the memory encryption attribute from C=0 -> C=1 - * or vice versa for this memory range. Lets make sure caches are - * flushed to ensure that guest data gets written into memory with - * correct C-bit. - */ - sev_clflush_pages(region->pages, region->npages); - sev_unpin_memory(kvm, region->pages, region->npages); list_del(®ion->list); kfree(region); @@ -1971,6 +1964,13 @@ static void sev_vm_destroy(struct kvm *kvm) mutex_lock(&kvm->lock); /* + * Ensure that all guest tagged cache entries are flushed before + * releasing the pages back to the system for use. CLFLUSH will + * not do this, so issue a WBINVD. + */ + wbinvd_on_all_cpus(); + + /* * if userspace was terminated before unregistering the memory regions * then lets unpin all the registered memory. */ @@ -6312,7 +6312,8 @@ static void svm_handle_exit_irqoff(struct kvm_vcpu *vcpu, enum exit_fastpath_completion *exit_fastpath) { if (!is_guest_mode(vcpu) && - to_svm(vcpu)->vmcb->control.exit_code == EXIT_REASON_MSR_WRITE) + to_svm(vcpu)->vmcb->control.exit_code == SVM_EXIT_MSR && + to_svm(vcpu)->vmcb->control.exit_info_1) *exit_fastpath = handle_fastpath_set_msr_irqoff(vcpu); } @@ -7157,6 +7158,9 @@ static int svm_mem_enc_op(struct kvm *kvm, void __user *argp) if (!svm_sev_enabled()) return -ENOTTY; + if (!argp) + return 0; + if (copy_from_user(&sev_cmd, argp, sizeof(struct kvm_sev_cmd))) return -EFAULT; @@ -7284,6 +7288,13 @@ static int svm_unregister_enc_region(struct kvm *kvm, goto failed; } + /* + * Ensure that all guest tagged cache entries are flushed before + * releasing the pages back to the system for use. CLFLUSH will + * not do this, so issue a WBINVD. + */ + wbinvd_on_all_cpus(); + __unregister_enc_region_locked(kvm, region); mutex_unlock(&kvm->lock); diff --git a/arch/x86/kvm/trace.h b/arch/x86/kvm/trace.h index f194dd058470..cef5a344fedb 100644 --- a/arch/x86/kvm/trace.h +++ b/arch/x86/kvm/trace.h @@ -815,8 +815,8 @@ TRACE_EVENT(kvm_write_tsc_offset, #ifdef CONFIG_X86_64 #define host_clocks \ - {VCLOCK_NONE, "none"}, \ - {VCLOCK_TSC, "tsc"} \ + {VDSO_CLOCKMODE_NONE, "none"}, \ + {VDSO_CLOCKMODE_TSC, "tsc"} \ TRACE_EVENT(kvm_update_master_clock, TP_PROTO(bool use_master_clock, unsigned int host_clock, bool offset_matched), diff --git a/arch/x86/kvm/vmx/nested.c b/arch/x86/kvm/vmx/nested.c index e920d7834d73..9750e590c89d 100644 --- a/arch/x86/kvm/vmx/nested.c +++ b/arch/x86/kvm/vmx/nested.c @@ -224,7 +224,7 @@ static inline void nested_release_evmcs(struct kvm_vcpu *vcpu) return; kvm_vcpu_unmap(vcpu, &vmx->nested.hv_evmcs_map, true); - vmx->nested.hv_evmcs_vmptr = -1ull; + vmx->nested.hv_evmcs_vmptr = 0; vmx->nested.hv_evmcs = NULL; } @@ -1923,7 +1923,8 @@ static int nested_vmx_handle_enlightened_vmptrld(struct kvm_vcpu *vcpu, if (!nested_enlightened_vmentry(vcpu, &evmcs_gpa)) return 1; - if (unlikely(evmcs_gpa != vmx->nested.hv_evmcs_vmptr)) { + if (unlikely(!vmx->nested.hv_evmcs || + evmcs_gpa != vmx->nested.hv_evmcs_vmptr)) { if (!vmx->nested.hv_evmcs) vmx->nested.current_vmptr = -1ull; diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c index 40b1e6138cd5..458e684dfbdc 100644 --- a/arch/x86/kvm/vmx/vmx.c +++ b/arch/x86/kvm/vmx/vmx.c @@ -31,6 +31,7 @@ #include <asm/apic.h> #include <asm/asm.h> #include <asm/cpu.h> +#include <asm/cpu_device_id.h> #include <asm/debugreg.h> #include <asm/desc.h> #include <asm/fpu/internal.h> @@ -41,6 +42,7 @@ #include <asm/mce.h> #include <asm/mmu_context.h> #include <asm/mshyperv.h> +#include <asm/mwait.h> #include <asm/spec-ctrl.h> #include <asm/virtext.h> #include <asm/vmx.h> @@ -66,7 +68,7 @@ MODULE_LICENSE("GPL"); #ifdef MODULE static const struct x86_cpu_id vmx_cpu_id[] = { - X86_FEATURE_MATCH(X86_FEATURE_VMX), + X86_MATCH_FEATURE(X86_FEATURE_VMX, NULL), {} }; MODULE_DEVICE_TABLE(x86cpu, vmx_cpu_id); @@ -2338,6 +2340,17 @@ static void hardware_disable(void) kvm_cpu_vmxoff(); } +/* + * There is no X86_FEATURE for SGX yet, but anyway we need to query CPUID + * directly instead of going through cpu_has(), to ensure KVM is trapping + * ENCLS whenever it's supported in hardware. It does not matter whether + * the host OS supports or has enabled SGX. + */ +static bool cpu_has_sgx(void) +{ + return cpuid_eax(0) >= 0x12 && (cpuid_eax(0x12) & BIT(0)); +} + static __init int adjust_vmx_controls(u32 ctl_min, u32 ctl_opt, u32 msr, u32 *result) { @@ -2418,8 +2431,9 @@ static __init int setup_vmcs_config(struct vmcs_config *vmcs_conf, SECONDARY_EXEC_ENABLE_USR_WAIT_PAUSE | SECONDARY_EXEC_PT_USE_GPA | SECONDARY_EXEC_PT_CONCEAL_VMX | - SECONDARY_EXEC_ENABLE_VMFUNC | - SECONDARY_EXEC_ENCLS_EXITING; + SECONDARY_EXEC_ENABLE_VMFUNC; + if (cpu_has_sgx()) + opt2 |= SECONDARY_EXEC_ENCLS_EXITING; if (adjust_vmx_controls(min2, opt2, MSR_IA32_VMX_PROCBASED_CTLS2, &_cpu_based_2nd_exec_control) < 0) @@ -6275,7 +6289,7 @@ static void handle_external_interrupt_irqoff(struct kvm_vcpu *vcpu) #endif ASM_CALL_CONSTRAINT : - THUNK_TARGET(entry), + [thunk_target]"r"(entry), [ss]"i"(__KERNEL_DS), [cs]"i"(__KERNEL_CS) ); diff --git a/arch/x86/kvm/vmx/vmx.h b/arch/x86/kvm/vmx/vmx.h index e64da06c7009..0695ea177e22 100644 --- a/arch/x86/kvm/vmx/vmx.h +++ b/arch/x86/kvm/vmx/vmx.h @@ -14,8 +14,6 @@ extern const u32 vmx_msr_index[]; extern u64 host_efer; -extern u32 get_umwait_control_msr(void); - #define MSR_TYPE_R 1 #define MSR_TYPE_W 2 #define MSR_TYPE_RW 3 diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c index 5de200663f51..bf8564d73fc3 100644 --- a/arch/x86/kvm/x86.c +++ b/arch/x86/kvm/x86.c @@ -1554,7 +1554,10 @@ EXPORT_SYMBOL_GPL(kvm_emulate_wrmsr); */ static int handle_fastpath_set_x2apic_icr_irqoff(struct kvm_vcpu *vcpu, u64 data) { - if (lapic_in_kernel(vcpu) && apic_x2apic_mode(vcpu->arch.apic) && + if (!lapic_in_kernel(vcpu) || !apic_x2apic_mode(vcpu->arch.apic)) + return 1; + + if (((data & APIC_SHORT_MASK) == APIC_DEST_NOSHORT) && ((data & APIC_DEST_MASK) == APIC_DEST_PHYSICAL) && ((data & APIC_MODE_MASK) == APIC_DM_FIXED)) { @@ -1631,7 +1634,7 @@ static void update_pvclock_gtod(struct timekeeper *tk) write_seqcount_begin(&vdata->seq); /* copy pvclock gtod data */ - vdata->clock.vclock_mode = tk->tkr_mono.clock->archdata.vclock_mode; + vdata->clock.vclock_mode = tk->tkr_mono.clock->vdso_clock_mode; vdata->clock.cycle_last = tk->tkr_mono.cycle_last; vdata->clock.mask = tk->tkr_mono.mask; vdata->clock.mult = tk->tkr_mono.mult; @@ -1639,7 +1642,7 @@ static void update_pvclock_gtod(struct timekeeper *tk) vdata->clock.base_cycles = tk->tkr_mono.xtime_nsec; vdata->clock.offset = tk->tkr_mono.base; - vdata->raw_clock.vclock_mode = tk->tkr_raw.clock->archdata.vclock_mode; + vdata->raw_clock.vclock_mode = tk->tkr_raw.clock->vdso_clock_mode; vdata->raw_clock.cycle_last = tk->tkr_raw.cycle_last; vdata->raw_clock.mask = tk->tkr_raw.mask; vdata->raw_clock.mult = tk->tkr_raw.mult; @@ -1840,7 +1843,7 @@ static u64 compute_guest_tsc(struct kvm_vcpu *vcpu, s64 kernel_ns) static inline int gtod_is_based_on_tsc(int mode) { - return mode == VCLOCK_TSC || mode == VCLOCK_HVCLOCK; + return mode == VDSO_CLOCKMODE_TSC || mode == VDSO_CLOCKMODE_HVCLOCK; } static void kvm_track_tsc_matching(struct kvm_vcpu *vcpu) @@ -1933,7 +1936,7 @@ static inline bool kvm_check_tsc_unstable(void) * TSC is marked unstable when we're running on Hyper-V, * 'TSC page' clocksource is good. */ - if (pvclock_gtod_data.clock.vclock_mode == VCLOCK_HVCLOCK) + if (pvclock_gtod_data.clock.vclock_mode == VDSO_CLOCKMODE_HVCLOCK) return false; #endif return check_tsc_unstable(); @@ -2088,30 +2091,30 @@ static inline u64 vgettsc(struct pvclock_clock *clock, u64 *tsc_timestamp, u64 tsc_pg_val; switch (clock->vclock_mode) { - case VCLOCK_HVCLOCK: + case VDSO_CLOCKMODE_HVCLOCK: tsc_pg_val = hv_read_tsc_page_tsc(hv_get_tsc_page(), tsc_timestamp); if (tsc_pg_val != U64_MAX) { /* TSC page valid */ - *mode = VCLOCK_HVCLOCK; + *mode = VDSO_CLOCKMODE_HVCLOCK; v = (tsc_pg_val - clock->cycle_last) & clock->mask; } else { /* TSC page invalid */ - *mode = VCLOCK_NONE; + *mode = VDSO_CLOCKMODE_NONE; } break; - case VCLOCK_TSC: - *mode = VCLOCK_TSC; + case VDSO_CLOCKMODE_TSC: + *mode = VDSO_CLOCKMODE_TSC; *tsc_timestamp = read_tsc(); v = (*tsc_timestamp - clock->cycle_last) & clock->mask; break; default: - *mode = VCLOCK_NONE; + *mode = VDSO_CLOCKMODE_NONE; } - if (*mode == VCLOCK_NONE) + if (*mode == VDSO_CLOCKMODE_NONE) *tsc_timestamp = v = 0; return v * clock->mult; @@ -2444,7 +2447,6 @@ static int kvm_guest_time_update(struct kvm_vcpu *v) vcpu->hv_clock.tsc_timestamp = tsc_timestamp; vcpu->hv_clock.system_time = kernel_ns + v->kvm->arch.kvmclock_offset; vcpu->last_guest_tsc = tsc_timestamp; - WARN_ON((s64)vcpu->hv_clock.system_time < 0); /* If the host uses TSC clocksource, then it is stable */ pvclock_flags = 0; @@ -7195,10 +7197,12 @@ static void kvm_timer_init(void) cpu = get_cpu(); policy = cpufreq_cpu_get(cpu); - if (policy && policy->cpuinfo.max_freq) - max_tsc_khz = policy->cpuinfo.max_freq; + if (policy) { + if (policy->cpuinfo.max_freq) + max_tsc_khz = policy->cpuinfo.max_freq; + cpufreq_cpu_put(policy); + } put_cpu(); - cpufreq_cpu_put(policy); #endif cpufreq_register_notifier(&kvmclock_cpufreq_notifier_block, CPUFREQ_TRANSITION_NOTIFIER); diff --git a/arch/x86/lib/x86-opcode-map.txt b/arch/x86/lib/x86-opcode-map.txt index 53adc1762ec0..ec31f5b60323 100644 --- a/arch/x86/lib/x86-opcode-map.txt +++ b/arch/x86/lib/x86-opcode-map.txt @@ -366,7 +366,7 @@ AVXcode: 1 1b: BNDCN Gv,Ev (F2) | BNDMOV Ev,Gv (66) | BNDMK Gv,Ev (F3) | BNDSTX Ev,Gv 1c: Grp20 (1A),(1C) 1d: -1e: +1e: Grp21 (1A) 1f: NOP Ev # 0x0f 0x20-0x2f 20: MOV Rd,Cd @@ -803,8 +803,8 @@ f0: MOVBE Gy,My | MOVBE Gw,Mw (66) | CRC32 Gd,Eb (F2) | CRC32 Gd,Eb (66&F2) f1: MOVBE My,Gy | MOVBE Mw,Gw (66) | CRC32 Gd,Ey (F2) | CRC32 Gd,Ew (66&F2) f2: ANDN Gy,By,Ey (v) f3: Grp17 (1A) -f5: BZHI Gy,Ey,By (v) | PEXT Gy,By,Ey (F3),(v) | PDEP Gy,By,Ey (F2),(v) -f6: ADCX Gy,Ey (66) | ADOX Gy,Ey (F3) | MULX By,Gy,rDX,Ey (F2),(v) +f5: BZHI Gy,Ey,By (v) | PEXT Gy,By,Ey (F3),(v) | PDEP Gy,By,Ey (F2),(v) | WRUSSD/Q My,Gy (66) +f6: ADCX Gy,Ey (66) | ADOX Gy,Ey (F3) | MULX By,Gy,rDX,Ey (F2),(v) | WRSSD/Q My,Gy f7: BEXTR Gy,Ey,By (v) | SHLX Gy,Ey,By (66),(v) | SARX Gy,Ey,By (F3),(v) | SHRX Gy,Ey,By (F2),(v) f8: MOVDIR64B Gv,Mdqq (66) | ENQCMD Gv,Mdqq (F2) | ENQCMDS Gv,Mdqq (F3) f9: MOVDIRI My,Gy @@ -970,7 +970,7 @@ GrpTable: Grp7 2: LGDT Ms | XGETBV (000),(11B) | XSETBV (001),(11B) | VMFUNC (100),(11B) | XEND (101)(11B) | XTEST (110)(11B) | ENCLU (111),(11B) 3: LIDT Ms 4: SMSW Mw/Rv -5: rdpkru (110),(11B) | wrpkru (111),(11B) +5: rdpkru (110),(11B) | wrpkru (111),(11B) | SAVEPREVSSP (F3),(010),(11B) | RSTORSSP Mq (F3) | SETSSBSY (F3),(000),(11B) 6: LMSW Ew 7: INVLPG Mb | SWAPGS (o64),(000),(11B) | RDTSCP (001),(11B) EndTable @@ -1041,8 +1041,8 @@ GrpTable: Grp15 2: vldmxcsr Md (v1) | WRFSBASE Ry (F3),(11B) 3: vstmxcsr Md (v1) | WRGSBASE Ry (F3),(11B) 4: XSAVE | ptwrite Ey (F3),(11B) -5: XRSTOR | lfence (11B) -6: XSAVEOPT | clwb (66) | mfence (11B) | TPAUSE Rd (66),(11B) | UMONITOR Rv (F3),(11B) | UMWAIT Rd (F2),(11B) +5: XRSTOR | lfence (11B) | INCSSPD/Q Ry (F3),(11B) +6: XSAVEOPT | clwb (66) | mfence (11B) | TPAUSE Rd (66),(11B) | UMONITOR Rv (F3),(11B) | UMWAIT Rd (F2),(11B) | CLRSSBSY Mq (F3) 7: clflush | clflushopt (66) | sfence (11B) EndTable @@ -1077,6 +1077,11 @@ GrpTable: Grp20 0: cldemote Mb EndTable +GrpTable: Grp21 +1: RDSSPD/Q Ry (F3),(11B) +7: ENDBR64 (F3),(010),(11B) | ENDBR32 (F3),(011),(11B) +EndTable + # AMD's Prefetch Group GrpTable: GrpP 0: PREFETCH diff --git a/arch/x86/mm/dump_pagetables.c b/arch/x86/mm/dump_pagetables.c index 64229dad7eab..69309cd56fdf 100644 --- a/arch/x86/mm/dump_pagetables.c +++ b/arch/x86/mm/dump_pagetables.c @@ -363,13 +363,8 @@ static void ptdump_walk_pgd_level_core(struct seq_file *m, { const struct ptdump_range ptdump_ranges[] = { #ifdef CONFIG_X86_64 - -#define normalize_addr_shift (64 - (__VIRTUAL_MASK_SHIFT + 1)) -#define normalize_addr(u) ((signed long)((u) << normalize_addr_shift) >> \ - normalize_addr_shift) - {0, PTRS_PER_PGD * PGD_LEVEL_MULT / 2}, - {normalize_addr(PTRS_PER_PGD * PGD_LEVEL_MULT / 2), ~0UL}, + {GUARD_HOLE_END_ADDR, ~0UL}, #else {0, ~0UL}, #endif diff --git a/arch/x86/mm/extable.c b/arch/x86/mm/extable.c index 30bb0bd3b1b8..b991aa4bdfae 100644 --- a/arch/x86/mm/extable.c +++ b/arch/x86/mm/extable.c @@ -80,18 +80,6 @@ __visible bool ex_handler_uaccess(const struct exception_table_entry *fixup, } EXPORT_SYMBOL(ex_handler_uaccess); -__visible bool ex_handler_ext(const struct exception_table_entry *fixup, - struct pt_regs *regs, int trapnr, - unsigned long error_code, - unsigned long fault_addr) -{ - /* Special hack for uaccess_err */ - current->thread.uaccess_err = 1; - regs->ip = ex_fixup_addr(fixup); - return true; -} -EXPORT_SYMBOL(ex_handler_ext); - __visible bool ex_handler_rdmsr_unsafe(const struct exception_table_entry *fixup, struct pt_regs *regs, int trapnr, unsigned long error_code, diff --git a/arch/x86/mm/fault.c b/arch/x86/mm/fault.c index fa4ea09593ab..629fdf13f846 100644 --- a/arch/x86/mm/fault.c +++ b/arch/x86/mm/fault.c @@ -190,7 +190,7 @@ static inline pmd_t *vmalloc_sync_one(pgd_t *pgd, unsigned long address) return pmd_k; } -void vmalloc_sync_all(void) +static void vmalloc_sync(void) { unsigned long address; @@ -217,6 +217,16 @@ void vmalloc_sync_all(void) } } +void vmalloc_sync_mappings(void) +{ + vmalloc_sync(); +} + +void vmalloc_sync_unmappings(void) +{ + vmalloc_sync(); +} + /* * 32-bit: * @@ -319,11 +329,23 @@ out: #else /* CONFIG_X86_64: */ -void vmalloc_sync_all(void) +void vmalloc_sync_mappings(void) { + /* + * 64-bit mappings might allocate new p4d/pud pages + * that need to be propagated to all tasks' PGDs. + */ sync_global_pgds(VMALLOC_START & PGDIR_MASK, VMALLOC_END); } +void vmalloc_sync_unmappings(void) +{ + /* + * Unmappings never allocate or free p4d/pud pages. + * No work is required here. + */ +} + /* * 64-bit: * diff --git a/arch/x86/mm/ioremap.c b/arch/x86/mm/ioremap.c index 44e4beb4239f..18c637c0dc6f 100644 --- a/arch/x86/mm/ioremap.c +++ b/arch/x86/mm/ioremap.c @@ -106,6 +106,22 @@ static unsigned int __ioremap_check_encrypted(struct resource *res) return 0; } +/* + * The EFI runtime services data area is not covered by walk_mem_res(), but must + * be mapped encrypted when SEV is active. + */ +static void __ioremap_check_other(resource_size_t addr, struct ioremap_desc *desc) +{ + if (!sev_active()) + return; + + if (!IS_ENABLED(CONFIG_EFI)) + return; + + if (efi_mem_type(addr) == EFI_RUNTIME_SERVICES_DATA) + desc->flags |= IORES_MAP_ENCRYPTED; +} + static int __ioremap_collect_map_flags(struct resource *res, void *arg) { struct ioremap_desc *desc = arg; @@ -124,6 +140,9 @@ static int __ioremap_collect_map_flags(struct resource *res, void *arg) * To avoid multiple resource walks, this function walks resources marked as * IORESOURCE_MEM and IORESOURCE_BUSY and looking for system RAM and/or a * resource described not as IORES_DESC_NONE (e.g. IORES_DESC_ACPI_TABLES). + * + * After that, deal with misc other ranges in __ioremap_check_other() which do + * not fall into the above category. */ static void __ioremap_check_mem(resource_size_t addr, unsigned long size, struct ioremap_desc *desc) @@ -135,6 +154,8 @@ static void __ioremap_check_mem(resource_size_t addr, unsigned long size, memset(desc, 0, sizeof(struct ioremap_desc)); walk_mem_res(start, end, desc, __ioremap_collect_map_flags); + + __ioremap_check_other(addr, desc); } /* diff --git a/arch/x86/mm/mmio-mod.c b/arch/x86/mm/mmio-mod.c index 673de6063345..109325d77b3e 100644 --- a/arch/x86/mm/mmio-mod.c +++ b/arch/x86/mm/mmio-mod.c @@ -386,7 +386,7 @@ static void enter_uniprocessor(void) put_online_cpus(); for_each_cpu(cpu, downed_cpus) { - err = cpu_down(cpu); + err = remove_cpu(cpu); if (!err) pr_info("CPU%d is down.\n", cpu); else @@ -406,7 +406,7 @@ static void leave_uniprocessor(void) return; pr_notice("Re-enabling CPUs...\n"); for_each_cpu(cpu, downed_cpus) { - err = cpu_up(cpu); + err = add_cpu(cpu); if (!err) pr_info("enabled CPU%d.\n", cpu); else diff --git a/arch/x86/mm/numa_emulation.c b/arch/x86/mm/numa_emulation.c index 7f1d2034df1e..c5174b4e318b 100644 --- a/arch/x86/mm/numa_emulation.c +++ b/arch/x86/mm/numa_emulation.c @@ -324,7 +324,7 @@ static int __init split_nodes_size_interleave(struct numa_meminfo *ei, 0, NULL, NUMA_NO_NODE); } -int __init setup_emu2phys_nid(int *dfl_phys_nid) +static int __init setup_emu2phys_nid(int *dfl_phys_nid) { int i, max_emu_nid = 0; diff --git a/arch/x86/mm/pat/set_memory.c b/arch/x86/mm/pat/set_memory.c index c4aedd00c1ba..6d5424069e2b 100644 --- a/arch/x86/mm/pat/set_memory.c +++ b/arch/x86/mm/pat/set_memory.c @@ -15,6 +15,7 @@ #include <linux/gfp.h> #include <linux/pci.h> #include <linux/vmalloc.h> +#include <linux/libnvdimm.h> #include <asm/e820/api.h> #include <asm/processor.h> @@ -304,11 +305,13 @@ void clflush_cache_range(void *vaddr, unsigned int size) } EXPORT_SYMBOL_GPL(clflush_cache_range); +#ifdef CONFIG_ARCH_HAS_PMEM_API void arch_invalidate_pmem(void *addr, size_t size) { clflush_cache_range(addr, size); } EXPORT_SYMBOL_GPL(arch_invalidate_pmem); +#endif static void __cpa_flush_all(void *arg) { diff --git a/arch/x86/mm/pti.c b/arch/x86/mm/pti.c index 44a9f068eee0..843aa10a4cb6 100644 --- a/arch/x86/mm/pti.c +++ b/arch/x86/mm/pti.c @@ -39,6 +39,7 @@ #include <asm/tlbflush.h> #include <asm/desc.h> #include <asm/sections.h> +#include <asm/set_memory.h> #undef pr_fmt #define pr_fmt(fmt) "Kernel/User page tables isolation: " fmt @@ -555,13 +556,6 @@ static inline bool pti_kernel_image_global_ok(void) } /* - * This is the only user for these and it is not arch-generic - * like the other set_memory.h functions. Just extern them. - */ -extern int set_memory_nonglobal(unsigned long addr, int numpages); -extern int set_memory_global(unsigned long addr, int numpages); - -/* * For some configurations, map all of kernel text into the user page * tables. This reduces TLB misses, especially on non-PCID systems. */ diff --git a/arch/x86/net/bpf_jit_comp32.c b/arch/x86/net/bpf_jit_comp32.c index 393d251798c0..4d2a7a764602 100644 --- a/arch/x86/net/bpf_jit_comp32.c +++ b/arch/x86/net/bpf_jit_comp32.c @@ -2039,10 +2039,12 @@ static int do_jit(struct bpf_prog *bpf_prog, int *addrs, u8 *image, } /* and dreg_lo,sreg_lo */ EMIT2(0x23, add_2reg(0xC0, sreg_lo, dreg_lo)); - /* and dreg_hi,sreg_hi */ - EMIT2(0x23, add_2reg(0xC0, sreg_hi, dreg_hi)); - /* or dreg_lo,dreg_hi */ - EMIT2(0x09, add_2reg(0xC0, dreg_lo, dreg_hi)); + if (is_jmp64) { + /* and dreg_hi,sreg_hi */ + EMIT2(0x23, add_2reg(0xC0, sreg_hi, dreg_hi)); + /* or dreg_lo,dreg_hi */ + EMIT2(0x09, add_2reg(0xC0, dreg_lo, dreg_hi)); + } goto emit_cond_jmp; } case BPF_JMP | BPF_JSET | BPF_K: diff --git a/arch/x86/platform/atom/punit_atom_debug.c b/arch/x86/platform/atom/punit_atom_debug.c index ee6b0780bea1..f8ed5f66cd20 100644 --- a/arch/x86/platform/atom/punit_atom_debug.c +++ b/arch/x86/platform/atom/punit_atom_debug.c @@ -117,17 +117,16 @@ static void punit_dbgfs_unregister(void) debugfs_remove_recursive(punit_dbg_file); } -#define ICPU(model, drv_data) \ - { X86_VENDOR_INTEL, 6, model, X86_FEATURE_MWAIT,\ - (kernel_ulong_t)&drv_data } +#define X86_MATCH(model, data) \ + X86_MATCH_VENDOR_FAM_MODEL_FEATURE(INTEL, 6, INTEL_FAM6_##model, \ + X86_FEATURE_MWAIT, data) static const struct x86_cpu_id intel_punit_cpu_ids[] = { - ICPU(INTEL_FAM6_ATOM_SILVERMONT, punit_device_byt), - ICPU(INTEL_FAM6_ATOM_SILVERMONT_MID, punit_device_tng), - ICPU(INTEL_FAM6_ATOM_AIRMONT, punit_device_cht), + X86_MATCH(ATOM_SILVERMONT, &punit_device_byt), + X86_MATCH(ATOM_SILVERMONT_MID, &punit_device_tng), + X86_MATCH(ATOM_AIRMONT, &punit_device_cht), {} }; - MODULE_DEVICE_TABLE(x86cpu, intel_punit_cpu_ids); static int __init punit_atom_debug_init(void) diff --git a/arch/x86/platform/efi/efi.c b/arch/x86/platform/efi/efi.c index ae923ee8e2b4..1aae5302501d 100644 --- a/arch/x86/platform/efi/efi.c +++ b/arch/x86/platform/efi/efi.c @@ -54,10 +54,16 @@ #include <asm/x86_init.h> #include <asm/uv/uv.h> -static efi_system_table_t efi_systab __initdata; -static u64 efi_systab_phys __initdata; +static unsigned long efi_systab_phys __initdata; +static unsigned long prop_phys = EFI_INVALID_TABLE_ADDR; +static unsigned long uga_phys = EFI_INVALID_TABLE_ADDR; +static unsigned long efi_runtime, efi_nr_tables; -static efi_config_table_type_t arch_tables[] __initdata = { +unsigned long efi_fw_vendor, efi_config_table; + +static const efi_config_table_type_t arch_tables[] __initconst = { + {EFI_PROPERTIES_TABLE_GUID, "PROP", &prop_phys}, + {UGA_IO_PROTOCOL_GUID, "UGA", &uga_phys}, #ifdef CONFIG_X86_UV {UV_SYSTEM_TABLE_GUID, "UVsystab", &uv_systab_phys}, #endif @@ -65,26 +71,26 @@ static efi_config_table_type_t arch_tables[] __initdata = { }; static const unsigned long * const efi_tables[] = { - &efi.mps, &efi.acpi, &efi.acpi20, &efi.smbios, &efi.smbios3, - &efi.boot_info, - &efi.hcdp, - &efi.uga, + &uga_phys, #ifdef CONFIG_X86_UV &uv_systab_phys, #endif - &efi.fw_vendor, - &efi.runtime, - &efi.config_table, + &efi_fw_vendor, + &efi_runtime, + &efi_config_table, &efi.esrt, - &efi.properties_table, - &efi.mem_attr_table, + &prop_phys, + &efi_mem_attr_table, #ifdef CONFIG_EFI_RCI2_TABLE &rci2_table_phys, #endif + &efi.tpm_log, + &efi.tpm_final_log, + &efi_rng_seed, }; u64 efi_setup; /* efi setup_data physical address */ @@ -214,16 +220,13 @@ int __init efi_memblock_x86_reserve_range(void) if (efi_enabled(EFI_PARAVIRT)) return 0; -#ifdef CONFIG_X86_32 - /* Can't handle data above 4GB at this time */ - if (e->efi_memmap_hi) { + /* Can't handle firmware tables above 4GB on i386 */ + if (IS_ENABLED(CONFIG_X86_32) && e->efi_memmap_hi > 0) { pr_err("Memory map is above 4GB, disabling EFI.\n"); return -EINVAL; } - pmap = e->efi_memmap; -#else - pmap = (e->efi_memmap | ((__u64)e->efi_memmap_hi << 32)); -#endif + pmap = (phys_addr_t)(e->efi_memmap | ((u64)e->efi_memmap_hi << 32)); + data.phys_map = pmap; data.size = e->efi_memmap_size; data.desc_size = e->efi_memdesc_size; @@ -243,6 +246,7 @@ int __init efi_memblock_x86_reserve_range(void) efi.memmap.desc_version); memblock_reserve(pmap, efi.memmap.nr_map * efi.memmap.desc_size); + set_bit(EFI_PRESERVE_BS_REGIONS, &efi.flags); return 0; } @@ -305,11 +309,11 @@ static void __init efi_clean_memmap(void) if (n_removal > 0) { struct efi_memory_map_data data = { - .phys_map = efi.memmap.phys_map, - .desc_version = efi.memmap.desc_version, - .desc_size = efi.memmap.desc_size, - .size = efi.memmap.desc_size * (efi.memmap.nr_map - n_removal), - .flags = 0, + .phys_map = efi.memmap.phys_map, + .desc_version = efi.memmap.desc_version, + .desc_size = efi.memmap.desc_size, + .size = efi.memmap.desc_size * (efi.memmap.nr_map - n_removal), + .flags = 0, }; pr_warn("Removing %d invalid memory map entries.\n", n_removal); @@ -333,43 +337,32 @@ void __init efi_print_memmap(void) } } -static int __init efi_systab_init(u64 phys) +static int __init efi_systab_init(unsigned long phys) { int size = efi_enabled(EFI_64BIT) ? sizeof(efi_system_table_64_t) : sizeof(efi_system_table_32_t); + const efi_table_hdr_t *hdr; bool over4g = false; void *p; + int ret; - p = early_memremap_ro(phys, size); + hdr = p = early_memremap_ro(phys, size); if (p == NULL) { pr_err("Couldn't map the system table!\n"); return -ENOMEM; } + ret = efi_systab_check_header(hdr, 1); + if (ret) { + early_memunmap(p, size); + return ret; + } + if (efi_enabled(EFI_64BIT)) { const efi_system_table_64_t *systab64 = p; - efi_systab.hdr = systab64->hdr; - efi_systab.fw_vendor = systab64->fw_vendor; - efi_systab.fw_revision = systab64->fw_revision; - efi_systab.con_in_handle = systab64->con_in_handle; - efi_systab.con_in = systab64->con_in; - efi_systab.con_out_handle = systab64->con_out_handle; - efi_systab.con_out = (void *)(unsigned long)systab64->con_out; - efi_systab.stderr_handle = systab64->stderr_handle; - efi_systab.stderr = systab64->stderr; - efi_systab.runtime = (void *)(unsigned long)systab64->runtime; - efi_systab.boottime = (void *)(unsigned long)systab64->boottime; - efi_systab.nr_tables = systab64->nr_tables; - efi_systab.tables = systab64->tables; - - over4g = systab64->con_in_handle > U32_MAX || - systab64->con_in > U32_MAX || - systab64->con_out_handle > U32_MAX || - systab64->con_out > U32_MAX || - systab64->stderr_handle > U32_MAX || - systab64->stderr > U32_MAX || - systab64->boottime > U32_MAX; + efi_runtime = systab64->runtime; + over4g = systab64->runtime > U32_MAX; if (efi_setup) { struct efi_setup_data *data; @@ -380,38 +373,33 @@ static int __init efi_systab_init(u64 phys) return -ENOMEM; } - efi_systab.fw_vendor = (unsigned long)data->fw_vendor; - efi_systab.runtime = (void *)(unsigned long)data->runtime; - efi_systab.tables = (unsigned long)data->tables; + efi_fw_vendor = (unsigned long)data->fw_vendor; + efi_config_table = (unsigned long)data->tables; over4g |= data->fw_vendor > U32_MAX || - data->runtime > U32_MAX || data->tables > U32_MAX; early_memunmap(data, sizeof(*data)); } else { + efi_fw_vendor = systab64->fw_vendor; + efi_config_table = systab64->tables; + over4g |= systab64->fw_vendor > U32_MAX || - systab64->runtime > U32_MAX || systab64->tables > U32_MAX; } + efi_nr_tables = systab64->nr_tables; } else { const efi_system_table_32_t *systab32 = p; - efi_systab.hdr = systab32->hdr; - efi_systab.fw_vendor = systab32->fw_vendor; - efi_systab.fw_revision = systab32->fw_revision; - efi_systab.con_in_handle = systab32->con_in_handle; - efi_systab.con_in = systab32->con_in; - efi_systab.con_out_handle = systab32->con_out_handle; - efi_systab.con_out = (void *)(unsigned long)systab32->con_out; - efi_systab.stderr_handle = systab32->stderr_handle; - efi_systab.stderr = systab32->stderr; - efi_systab.runtime = (void *)(unsigned long)systab32->runtime; - efi_systab.boottime = (void *)(unsigned long)systab32->boottime; - efi_systab.nr_tables = systab32->nr_tables; - efi_systab.tables = systab32->tables; + efi_fw_vendor = systab32->fw_vendor; + efi_runtime = systab32->runtime; + efi_config_table = systab32->tables; + efi_nr_tables = systab32->nr_tables; } + efi.runtime_version = hdr->revision; + + efi_systab_report_header(hdr, efi_fw_vendor); early_memunmap(p, size); if (IS_ENABLED(CONFIG_X86_32) && over4g) { @@ -419,29 +407,40 @@ static int __init efi_systab_init(u64 phys) return -EINVAL; } - efi.systab = &efi_systab; + return 0; +} + +static int __init efi_config_init(const efi_config_table_type_t *arch_tables) +{ + void *config_tables; + int sz, ret; + + if (efi_nr_tables == 0) + return 0; + + if (efi_enabled(EFI_64BIT)) + sz = sizeof(efi_config_table_64_t); + else + sz = sizeof(efi_config_table_32_t); /* - * Verify the EFI Table + * Let's see what config tables the firmware passed to us. */ - if (efi.systab->hdr.signature != EFI_SYSTEM_TABLE_SIGNATURE) { - pr_err("System table signature incorrect!\n"); - return -EINVAL; + config_tables = early_memremap(efi_config_table, efi_nr_tables * sz); + if (config_tables == NULL) { + pr_err("Could not map Configuration table!\n"); + return -ENOMEM; } - if ((efi.systab->hdr.revision >> 16) == 0) - pr_err("Warning: System table version %d.%02d, expected 1.00 or greater!\n", - efi.systab->hdr.revision >> 16, - efi.systab->hdr.revision & 0xffff); - return 0; + ret = efi_config_parse_tables(config_tables, efi_nr_tables, + arch_tables); + + early_memunmap(config_tables, efi_nr_tables * sz); + return ret; } void __init efi_init(void) { - efi_char16_t *c16; - char vendor[100] = "unknown"; - int i = 0; - if (IS_ENABLED(CONFIG_X86_32) && (boot_params.efi_info.efi_systab_hi || boot_params.efi_info.efi_memmap_hi)) { @@ -455,29 +454,7 @@ void __init efi_init(void) if (efi_systab_init(efi_systab_phys)) return; - efi.config_table = (unsigned long)efi.systab->tables; - efi.fw_vendor = (unsigned long)efi.systab->fw_vendor; - efi.runtime = (unsigned long)efi.systab->runtime; - - /* - * Show what we know for posterity - */ - c16 = early_memremap_ro(efi.systab->fw_vendor, - sizeof(vendor) * sizeof(efi_char16_t)); - if (c16) { - for (i = 0; i < sizeof(vendor) - 1 && c16[i]; ++i) - vendor[i] = c16[i]; - vendor[i] = '\0'; - early_memunmap(c16, sizeof(vendor) * sizeof(efi_char16_t)); - } else { - pr_err("Could not map the firmware vendor!\n"); - } - - pr_info("EFI v%u.%.02u by %s\n", - efi.systab->hdr.revision >> 16, - efi.systab->hdr.revision & 0xffff, vendor); - - if (efi_reuse_config(efi.systab->tables, efi.systab->nr_tables)) + if (efi_reuse_config(efi_config_table, efi_nr_tables)) return; if (efi_config_init(arch_tables)) @@ -496,6 +473,22 @@ void __init efi_init(void) return; } + /* Parse the EFI Properties table if it exists */ + if (prop_phys != EFI_INVALID_TABLE_ADDR) { + efi_properties_table_t *tbl; + + tbl = early_memremap_ro(prop_phys, sizeof(*tbl)); + if (tbl == NULL) { + pr_err("Could not map Properties table!\n"); + } else { + if (tbl->memory_protection_attribute & + EFI_PROPERTIES_RUNTIME_MEMORY_PROTECTION_NON_EXECUTABLE_PE_DATA) + set_bit(EFI_NX_PE_DATA, &efi.flags); + + early_memunmap(tbl, sizeof(*tbl)); + } + } + set_bit(EFI_RUNTIME_SERVICES, &efi.flags); efi_clean_memmap(); @@ -602,20 +595,6 @@ static void __init efi_merge_regions(void) } } -static void __init get_systab_virt_addr(efi_memory_desc_t *md) -{ - unsigned long size; - u64 end, systab; - - size = md->num_pages << EFI_PAGE_SHIFT; - end = md->phys_addr + size; - systab = efi_systab_phys; - if (md->phys_addr <= systab && systab < end) { - systab += md->virt_addr - md->phys_addr; - efi.systab = (efi_system_table_t *)(unsigned long)systab; - } -} - static void *realloc_pages(void *old_memmap, int old_shift) { void *ret; @@ -771,7 +750,6 @@ static void * __init efi_map_regions(int *count, int *pg_shift) continue; efi_map_region(md); - get_systab_virt_addr(md); if (left < desc_size) { new_memmap = realloc_pages(new_memmap, *pg_shift); @@ -797,8 +775,6 @@ static void __init kexec_enter_virtual_mode(void) efi_memory_desc_t *md; unsigned int num_pages; - efi.systab = NULL; - /* * We don't do virtual mode, since we don't do runtime services, on * non-native EFI. With the UV1 memmap, we don't do runtime services in @@ -821,10 +797,8 @@ static void __init kexec_enter_virtual_mode(void) * Map efi regions which were passed via setup_data. The virt_addr is a * fixed addr which was used in first kernel of a kexec boot. */ - for_each_efi_memory_desc(md) { + for_each_efi_memory_desc(md) efi_map_region_fixed(md); /* FIXME: add error handling */ - get_systab_virt_addr(md); - } /* * Unregister the early EFI memmap from efi_init() and install @@ -839,8 +813,6 @@ static void __init kexec_enter_virtual_mode(void) return; } - BUG_ON(!efi.systab); - num_pages = ALIGN(efi.memmap.nr_map * efi.memmap.desc_size, PAGE_SIZE); num_pages >>= PAGE_SHIFT; @@ -850,15 +822,6 @@ static void __init kexec_enter_virtual_mode(void) } efi_sync_low_kernel_mappings(); - - /* - * Now that EFI is in virtual mode, update the function - * pointers in the runtime service table to the new virtual addresses. - * - * Call EFI services through wrapper functions. - */ - efi.runtime_version = efi_systab.hdr.revision; - efi_native_runtime_setup(); #endif } @@ -892,8 +855,6 @@ static void __init __efi_enter_virtual_mode(void) efi_status_t status; unsigned long pa; - efi.systab = NULL; - if (efi_alloc_page_tables()) { pr_err("Failed to allocate EFI page tables\n"); goto err; @@ -925,9 +886,6 @@ static void __init __efi_enter_virtual_mode(void) efi_print_memmap(); } - if (WARN_ON(!efi.systab)) - goto err; - if (efi_setup_page_tables(pa, 1 << pg_shift)) goto err; @@ -936,23 +894,17 @@ static void __init __efi_enter_virtual_mode(void) status = efi_set_virtual_address_map(efi.memmap.desc_size * count, efi.memmap.desc_size, efi.memmap.desc_version, - (efi_memory_desc_t *)pa); + (efi_memory_desc_t *)pa, + efi_systab_phys); if (status != EFI_SUCCESS) { pr_err("Unable to switch EFI into virtual mode (status=%lx)!\n", status); goto err; } + efi_check_for_embedded_firmwares(); efi_free_boot_services(); - /* - * Now that EFI is in virtual mode, update the function - * pointers in the runtime service table to the new virtual addresses. - * - * Call EFI services through wrapper functions. - */ - efi.runtime_version = efi_systab.hdr.revision; - if (!efi_is_mixed()) efi_native_runtime_setup(); else @@ -978,6 +930,8 @@ void __init efi_enter_virtual_mode(void) if (efi_enabled(EFI_PARAVIRT)) return; + efi.runtime = (efi_runtime_services_t *)efi_runtime; + if (efi_setup) kexec_enter_virtual_mode(); else @@ -999,3 +953,43 @@ bool efi_is_table_address(unsigned long phys_addr) return false; } + +char *efi_systab_show_arch(char *str) +{ + if (uga_phys != EFI_INVALID_TABLE_ADDR) + str += sprintf(str, "UGA=0x%lx\n", uga_phys); + return str; +} + +#define EFI_FIELD(var) efi_ ## var + +#define EFI_ATTR_SHOW(name) \ +static ssize_t name##_show(struct kobject *kobj, \ + struct kobj_attribute *attr, char *buf) \ +{ \ + return sprintf(buf, "0x%lx\n", EFI_FIELD(name)); \ +} + +EFI_ATTR_SHOW(fw_vendor); +EFI_ATTR_SHOW(runtime); +EFI_ATTR_SHOW(config_table); + +struct kobj_attribute efi_attr_fw_vendor = __ATTR_RO(fw_vendor); +struct kobj_attribute efi_attr_runtime = __ATTR_RO(runtime); +struct kobj_attribute efi_attr_config_table = __ATTR_RO(config_table); + +umode_t efi_attr_is_visible(struct kobject *kobj, struct attribute *attr, int n) +{ + if (attr == &efi_attr_fw_vendor.attr) { + if (efi_enabled(EFI_PARAVIRT) || + efi_fw_vendor == EFI_INVALID_TABLE_ADDR) + return 0; + } else if (attr == &efi_attr_runtime.attr) { + if (efi_runtime == EFI_INVALID_TABLE_ADDR) + return 0; + } else if (attr == &efi_attr_config_table.attr) { + if (efi_config_table == EFI_INVALID_TABLE_ADDR) + return 0; + } + return attr->mode; +} diff --git a/arch/x86/platform/efi/efi_32.c b/arch/x86/platform/efi/efi_32.c index 081d466002c9..c049c432745d 100644 --- a/arch/x86/platform/efi/efi_32.c +++ b/arch/x86/platform/efi/efi_32.c @@ -66,14 +66,16 @@ void __init efi_map_region(efi_memory_desc_t *md) void __init efi_map_region_fixed(efi_memory_desc_t *md) {} void __init parse_efi_setup(u64 phys_addr, u32 data_len) {} -efi_status_t efi_call_svam(efi_set_virtual_address_map_t *__efiapi *, - u32, u32, u32, void *); +efi_status_t efi_call_svam(efi_runtime_services_t * const *, + u32, u32, u32, void *, u32); efi_status_t __init efi_set_virtual_address_map(unsigned long memory_map_size, unsigned long descriptor_size, u32 descriptor_version, - efi_memory_desc_t *virtual_map) + efi_memory_desc_t *virtual_map, + unsigned long systab_phys) { + const efi_system_table_t *systab = (efi_system_table_t *)systab_phys; struct desc_ptr gdt_descr; efi_status_t status; unsigned long flags; @@ -90,9 +92,10 @@ efi_status_t __init efi_set_virtual_address_map(unsigned long memory_map_size, /* Disable interrupts around EFI calls: */ local_irq_save(flags); - status = efi_call_svam(&efi.systab->runtime->set_virtual_address_map, + status = efi_call_svam(&systab->runtime, memory_map_size, descriptor_size, - descriptor_version, virtual_map); + descriptor_version, virtual_map, + __pa(&efi.runtime)); local_irq_restore(flags); load_fixmap_gdt(0); diff --git a/arch/x86/platform/efi/efi_64.c b/arch/x86/platform/efi/efi_64.c index fa8506e76bbe..211bb9358b73 100644 --- a/arch/x86/platform/efi/efi_64.c +++ b/arch/x86/platform/efi/efi_64.c @@ -180,7 +180,7 @@ void efi_sync_low_kernel_mappings(void) static inline phys_addr_t virt_to_phys_or_null_size(void *va, unsigned long size) { - bool bad_size; + phys_addr_t pa; if (!va) return 0; @@ -188,16 +188,13 @@ virt_to_phys_or_null_size(void *va, unsigned long size) if (virt_addr_valid(va)) return virt_to_phys(va); - /* - * A fully aligned variable on the stack is guaranteed not to - * cross a page bounary. Try to catch strings on the stack by - * checking that 'size' is a power of two. - */ - bad_size = size > PAGE_SIZE || !is_power_of_2(size); + pa = slow_virt_to_phys(va); - WARN_ON(!IS_ALIGNED((unsigned long)va, size) || bad_size); + /* check if the object crosses a page boundary */ + if (WARN_ON((pa ^ (pa + size - 1)) & PAGE_MASK)) + return 0; - return slow_virt_to_phys(va); + return pa; } #define virt_to_phys_or_null(addr) \ @@ -500,12 +497,9 @@ static DEFINE_SPINLOCK(efi_runtime_lock); */ #define __efi_thunk(func, ...) \ ({ \ - efi_runtime_services_32_t *__rt; \ unsigned short __ds, __es; \ efi_status_t ____s; \ \ - __rt = (void *)(unsigned long)efi.systab->mixed_mode.runtime; \ - \ savesegment(ds, __ds); \ savesegment(es, __es); \ \ @@ -513,7 +507,7 @@ static DEFINE_SPINLOCK(efi_runtime_lock); loadsegment(ds, __KERNEL_DS); \ loadsegment(es, __KERNEL_DS); \ \ - ____s = efi64_thunk(__rt->func, __VA_ARGS__); \ + ____s = efi64_thunk(efi.runtime->mixed_mode.func, __VA_ARGS__); \ \ loadsegment(ds, __ds); \ loadsegment(es, __es); \ @@ -568,85 +562,25 @@ efi_thunk_set_virtual_address_map(unsigned long memory_map_size, static efi_status_t efi_thunk_get_time(efi_time_t *tm, efi_time_cap_t *tc) { - efi_status_t status; - u32 phys_tm, phys_tc; - unsigned long flags; - - spin_lock(&rtc_lock); - spin_lock_irqsave(&efi_runtime_lock, flags); - - phys_tm = virt_to_phys_or_null(tm); - phys_tc = virt_to_phys_or_null(tc); - - status = efi_thunk(get_time, phys_tm, phys_tc); - - spin_unlock_irqrestore(&efi_runtime_lock, flags); - spin_unlock(&rtc_lock); - - return status; + return EFI_UNSUPPORTED; } static efi_status_t efi_thunk_set_time(efi_time_t *tm) { - efi_status_t status; - u32 phys_tm; - unsigned long flags; - - spin_lock(&rtc_lock); - spin_lock_irqsave(&efi_runtime_lock, flags); - - phys_tm = virt_to_phys_or_null(tm); - - status = efi_thunk(set_time, phys_tm); - - spin_unlock_irqrestore(&efi_runtime_lock, flags); - spin_unlock(&rtc_lock); - - return status; + return EFI_UNSUPPORTED; } static efi_status_t efi_thunk_get_wakeup_time(efi_bool_t *enabled, efi_bool_t *pending, efi_time_t *tm) { - efi_status_t status; - u32 phys_enabled, phys_pending, phys_tm; - unsigned long flags; - - spin_lock(&rtc_lock); - spin_lock_irqsave(&efi_runtime_lock, flags); - - phys_enabled = virt_to_phys_or_null(enabled); - phys_pending = virt_to_phys_or_null(pending); - phys_tm = virt_to_phys_or_null(tm); - - status = efi_thunk(get_wakeup_time, phys_enabled, - phys_pending, phys_tm); - - spin_unlock_irqrestore(&efi_runtime_lock, flags); - spin_unlock(&rtc_lock); - - return status; + return EFI_UNSUPPORTED; } static efi_status_t efi_thunk_set_wakeup_time(efi_bool_t enabled, efi_time_t *tm) { - efi_status_t status; - u32 phys_tm; - unsigned long flags; - - spin_lock(&rtc_lock); - spin_lock_irqsave(&efi_runtime_lock, flags); - - phys_tm = virt_to_phys_or_null(tm); - - status = efi_thunk(set_wakeup_time, enabled, phys_tm); - - spin_unlock_irqrestore(&efi_runtime_lock, flags); - spin_unlock(&rtc_lock); - - return status; + return EFI_UNSUPPORTED; } static unsigned long efi_name_size(efi_char16_t *name) @@ -658,6 +592,8 @@ static efi_status_t efi_thunk_get_variable(efi_char16_t *name, efi_guid_t *vendor, u32 *attr, unsigned long *data_size, void *data) { + u8 buf[24] __aligned(8); + efi_guid_t *vnd = PTR_ALIGN((efi_guid_t *)buf, sizeof(*vnd)); efi_status_t status; u32 phys_name, phys_vendor, phys_attr; u32 phys_data_size, phys_data; @@ -665,14 +601,19 @@ efi_thunk_get_variable(efi_char16_t *name, efi_guid_t *vendor, spin_lock_irqsave(&efi_runtime_lock, flags); + *vnd = *vendor; + phys_data_size = virt_to_phys_or_null(data_size); - phys_vendor = virt_to_phys_or_null(vendor); + phys_vendor = virt_to_phys_or_null(vnd); phys_name = virt_to_phys_or_null_size(name, efi_name_size(name)); phys_attr = virt_to_phys_or_null(attr); phys_data = virt_to_phys_or_null_size(data, *data_size); - status = efi_thunk(get_variable, phys_name, phys_vendor, - phys_attr, phys_data_size, phys_data); + if (!phys_name || (data && !phys_data)) + status = EFI_INVALID_PARAMETER; + else + status = efi_thunk(get_variable, phys_name, phys_vendor, + phys_attr, phys_data_size, phys_data); spin_unlock_irqrestore(&efi_runtime_lock, flags); @@ -683,19 +624,25 @@ static efi_status_t efi_thunk_set_variable(efi_char16_t *name, efi_guid_t *vendor, u32 attr, unsigned long data_size, void *data) { + u8 buf[24] __aligned(8); + efi_guid_t *vnd = PTR_ALIGN((efi_guid_t *)buf, sizeof(*vnd)); u32 phys_name, phys_vendor, phys_data; efi_status_t status; unsigned long flags; spin_lock_irqsave(&efi_runtime_lock, flags); + *vnd = *vendor; + phys_name = virt_to_phys_or_null_size(name, efi_name_size(name)); - phys_vendor = virt_to_phys_or_null(vendor); + phys_vendor = virt_to_phys_or_null(vnd); phys_data = virt_to_phys_or_null_size(data, data_size); - /* If data_size is > sizeof(u32) we've got problems */ - status = efi_thunk(set_variable, phys_name, phys_vendor, - attr, data_size, phys_data); + if (!phys_name || !phys_data) + status = EFI_INVALID_PARAMETER; + else + status = efi_thunk(set_variable, phys_name, phys_vendor, + attr, data_size, phys_data); spin_unlock_irqrestore(&efi_runtime_lock, flags); @@ -707,6 +654,8 @@ efi_thunk_set_variable_nonblocking(efi_char16_t *name, efi_guid_t *vendor, u32 attr, unsigned long data_size, void *data) { + u8 buf[24] __aligned(8); + efi_guid_t *vnd = PTR_ALIGN((efi_guid_t *)buf, sizeof(*vnd)); u32 phys_name, phys_vendor, phys_data; efi_status_t status; unsigned long flags; @@ -714,13 +663,17 @@ efi_thunk_set_variable_nonblocking(efi_char16_t *name, efi_guid_t *vendor, if (!spin_trylock_irqsave(&efi_runtime_lock, flags)) return EFI_NOT_READY; + *vnd = *vendor; + phys_name = virt_to_phys_or_null_size(name, efi_name_size(name)); - phys_vendor = virt_to_phys_or_null(vendor); + phys_vendor = virt_to_phys_or_null(vnd); phys_data = virt_to_phys_or_null_size(data, data_size); - /* If data_size is > sizeof(u32) we've got problems */ - status = efi_thunk(set_variable, phys_name, phys_vendor, - attr, data_size, phys_data); + if (!phys_name || !phys_data) + status = EFI_INVALID_PARAMETER; + else + status = efi_thunk(set_variable, phys_name, phys_vendor, + attr, data_size, phys_data); spin_unlock_irqrestore(&efi_runtime_lock, flags); @@ -732,39 +685,36 @@ efi_thunk_get_next_variable(unsigned long *name_size, efi_char16_t *name, efi_guid_t *vendor) { + u8 buf[24] __aligned(8); + efi_guid_t *vnd = PTR_ALIGN((efi_guid_t *)buf, sizeof(*vnd)); efi_status_t status; u32 phys_name_size, phys_name, phys_vendor; unsigned long flags; spin_lock_irqsave(&efi_runtime_lock, flags); + *vnd = *vendor; + phys_name_size = virt_to_phys_or_null(name_size); - phys_vendor = virt_to_phys_or_null(vendor); + phys_vendor = virt_to_phys_or_null(vnd); phys_name = virt_to_phys_or_null_size(name, *name_size); - status = efi_thunk(get_next_variable, phys_name_size, - phys_name, phys_vendor); + if (!phys_name) + status = EFI_INVALID_PARAMETER; + else + status = efi_thunk(get_next_variable, phys_name_size, + phys_name, phys_vendor); spin_unlock_irqrestore(&efi_runtime_lock, flags); + *vendor = *vnd; return status; } static efi_status_t efi_thunk_get_next_high_mono_count(u32 *count) { - efi_status_t status; - u32 phys_count; - unsigned long flags; - - spin_lock_irqsave(&efi_runtime_lock, flags); - - phys_count = virt_to_phys_or_null(count); - status = efi_thunk(get_next_high_mono_count, phys_count); - - spin_unlock_irqrestore(&efi_runtime_lock, flags); - - return status; + return EFI_UNSUPPORTED; } static void @@ -886,8 +836,10 @@ efi_status_t __init __no_sanitize_address efi_set_virtual_address_map(unsigned long memory_map_size, unsigned long descriptor_size, u32 descriptor_version, - efi_memory_desc_t *virtual_map) + efi_memory_desc_t *virtual_map, + unsigned long systab_phys) { + const efi_system_table_t *systab = (efi_system_table_t *)systab_phys; efi_status_t status; unsigned long flags; pgd_t *save_pgd = NULL; @@ -910,13 +862,16 @@ efi_set_virtual_address_map(unsigned long memory_map_size, /* Disable interrupts around EFI calls: */ local_irq_save(flags); - status = efi_call(efi.systab->runtime->set_virtual_address_map, + status = efi_call(efi.runtime->set_virtual_address_map, memory_map_size, descriptor_size, descriptor_version, virtual_map); local_irq_restore(flags); kernel_fpu_end(); + /* grab the virtually remapped EFI runtime services table pointer */ + efi.runtime = READ_ONCE(systab->runtime); + if (save_pgd) efi_uv1_memmap_phys_epilog(save_pgd); else diff --git a/arch/x86/platform/efi/efi_stub_32.S b/arch/x86/platform/efi/efi_stub_32.S index 75c46e7a809f..09ec84f6ef51 100644 --- a/arch/x86/platform/efi/efi_stub_32.S +++ b/arch/x86/platform/efi/efi_stub_32.S @@ -8,14 +8,20 @@ #include <linux/linkage.h> #include <linux/init.h> +#include <asm/asm-offsets.h> #include <asm/page_types.h> __INIT SYM_FUNC_START(efi_call_svam) - push 8(%esp) - push 8(%esp) + push %ebp + movl %esp, %ebp + push %ebx + + push 16(%esp) + push 16(%esp) push %ecx push %edx + movl %eax, %ebx // &systab_phys->runtime /* * Switch to the flat mapped alias of this routine, by jumping to the @@ -35,15 +41,20 @@ SYM_FUNC_START(efi_call_svam) subl $__PAGE_OFFSET, %esp /* call the EFI routine */ - call *(%eax) + movl (%eax), %eax + call *EFI_svam(%eax) - /* convert ESP back to a kernel VA, and pop the outgoing args */ - addl $__PAGE_OFFSET + 16, %esp + /* grab the virtually remapped EFI runtime services table pointer */ + movl (%ebx), %ecx + movl 36(%esp), %edx // &efi.runtime + movl %ecx, (%edx) /* re-enable paging */ movl %cr0, %edx orl $0x80000000, %edx movl %edx, %cr0 + movl 16(%esp), %ebx + leave ret SYM_FUNC_END(efi_call_svam) diff --git a/arch/x86/platform/efi/quirks.c b/arch/x86/platform/efi/quirks.c index 88d32c06cffa..a5a469cdf5bf 100644 --- a/arch/x86/platform/efi/quirks.c +++ b/arch/x86/platform/efi/quirks.c @@ -410,6 +410,10 @@ void __init efi_free_boot_services(void) int num_entries = 0; void *new, *new_md; + /* Keep all regions for /sys/kernel/debug/efi */ + if (efi_enabled(EFI_DBG)) + return; + for_each_efi_memory_desc(md) { unsigned long long start = md->phys_addr; unsigned long long size = md->num_pages << EFI_PAGE_SHIFT; @@ -537,7 +541,7 @@ int __init efi_reuse_config(u64 tables, int nr_tables) goto out_memremap; } - for (i = 0; i < efi.systab->nr_tables; i++) { + for (i = 0; i < nr_tables; i++) { efi_guid_t guid; guid = ((efi_config_table_64_t *)p)->guid; @@ -659,12 +663,9 @@ static int qrk_capsule_setup_info(struct capsule_info *cap_info, void **pkbuff, return 1; } -#define ICPU(family, model, quirk_handler) \ - { X86_VENDOR_INTEL, family, model, X86_FEATURE_ANY, \ - (unsigned long)&quirk_handler } - static const struct x86_cpu_id efi_capsule_quirk_ids[] = { - ICPU(5, 9, qrk_capsule_setup_info), /* Intel Quark X1000 */ + X86_MATCH_VENDOR_FAM_MODEL(INTEL, 5, INTEL_FAM5_QUARK_X1000, + &qrk_capsule_setup_info), { } }; diff --git a/arch/x86/platform/intel-mid/device_libs/platform_bt.c b/arch/x86/platform/intel-mid/device_libs/platform_bt.c index e3f4bfc08f78..31dda18bb370 100644 --- a/arch/x86/platform/intel-mid/device_libs/platform_bt.c +++ b/arch/x86/platform/intel-mid/device_libs/platform_bt.c @@ -60,11 +60,8 @@ static struct bt_sfi_data tng_bt_sfi_data __initdata = { .setup = tng_bt_sfi_setup, }; -#define ICPU(model, ddata) \ - { X86_VENDOR_INTEL, 6, model, X86_FEATURE_ANY, (kernel_ulong_t)&ddata } - static const struct x86_cpu_id bt_sfi_cpu_ids[] = { - ICPU(INTEL_FAM6_ATOM_SILVERMONT_MID, tng_bt_sfi_data), + X86_MATCH_INTEL_FAM6_MODEL(ATOM_SILVERMONT_MID, &tng_bt_sfi_data), {} }; diff --git a/arch/x86/platform/intel-quark/imr.c b/arch/x86/platform/intel-quark/imr.c index e9d97d52475e..0286fe1b14b5 100644 --- a/arch/x86/platform/intel-quark/imr.c +++ b/arch/x86/platform/intel-quark/imr.c @@ -569,7 +569,7 @@ static void __init imr_fixup_memmap(struct imr_device *idev) } static const struct x86_cpu_id imr_ids[] __initconst = { - { X86_VENDOR_INTEL, 5, 9 }, /* Intel Quark SoC X1000. */ + X86_MATCH_VENDOR_FAM_MODEL(INTEL, 5, INTEL_FAM5_QUARK_X1000, NULL), {} }; diff --git a/arch/x86/platform/intel-quark/imr_selftest.c b/arch/x86/platform/intel-quark/imr_selftest.c index 4307830e1b6f..570e3062faac 100644 --- a/arch/x86/platform/intel-quark/imr_selftest.c +++ b/arch/x86/platform/intel-quark/imr_selftest.c @@ -105,7 +105,7 @@ static void __init imr_self_test(void) } static const struct x86_cpu_id imr_ids[] __initconst = { - { X86_VENDOR_INTEL, 5, 9 }, /* Intel Quark SoC X1000. */ + X86_MATCH_VENDOR_FAM_MODEL(INTEL, 5, INTEL_FAM5_QUARK_X1000, NULL), {} }; diff --git a/arch/x86/platform/intel/iosf_mbi.c b/arch/x86/platform/intel/iosf_mbi.c index 9e2444500428..526f70f27c1c 100644 --- a/arch/x86/platform/intel/iosf_mbi.c +++ b/arch/x86/platform/intel/iosf_mbi.c @@ -265,7 +265,7 @@ static void iosf_mbi_reset_semaphore(void) iosf_mbi_sem_address, 0, PUNIT_SEMAPHORE_BIT)) dev_err(&mbi_pdev->dev, "Error P-Unit semaphore reset failed\n"); - pm_qos_update_request(&iosf_mbi_pm_qos, PM_QOS_DEFAULT_VALUE); + cpu_latency_qos_update_request(&iosf_mbi_pm_qos, PM_QOS_DEFAULT_VALUE); blocking_notifier_call_chain(&iosf_mbi_pmic_bus_access_notifier, MBI_PMIC_BUS_ACCESS_END, NULL); @@ -301,8 +301,8 @@ static void iosf_mbi_reset_semaphore(void) * 4) When CPU cores enter C6 or C7 the P-Unit needs to talk to the PMIC * if this happens while the kernel itself is accessing the PMIC I2C bus * the SoC hangs. - * As the third step we call pm_qos_update_request() to disallow the CPU - * to enter C6 or C7. + * As the third step we call cpu_latency_qos_update_request() to disallow the + * CPU to enter C6 or C7. * * 5) The P-Unit has a PMIC bus semaphore which we can request to stop * autonomous P-Unit tasks from accessing the PMIC I2C bus while we hold it. @@ -338,7 +338,7 @@ int iosf_mbi_block_punit_i2c_access(void) * requires the P-Unit to talk to the PMIC and if this happens while * we're holding the semaphore, the SoC hangs. */ - pm_qos_update_request(&iosf_mbi_pm_qos, 0); + cpu_latency_qos_update_request(&iosf_mbi_pm_qos, 0); /* host driver writes to side band semaphore register */ ret = iosf_mbi_write(BT_MBI_UNIT_PMC, MBI_REG_WRITE, @@ -547,8 +547,7 @@ static int __init iosf_mbi_init(void) { iosf_debugfs_init(); - pm_qos_add_request(&iosf_mbi_pm_qos, PM_QOS_CPU_DMA_LATENCY, - PM_QOS_DEFAULT_VALUE); + cpu_latency_qos_add_request(&iosf_mbi_pm_qos, PM_QOS_DEFAULT_VALUE); return pci_register_driver(&iosf_mbi_pci_driver); } @@ -561,7 +560,7 @@ static void __exit iosf_mbi_exit(void) pci_dev_put(mbi_pdev); mbi_pdev = NULL; - pm_qos_remove_request(&iosf_mbi_pm_qos); + cpu_latency_qos_remove_request(&iosf_mbi_pm_qos); } module_init(iosf_mbi_init); diff --git a/arch/x86/power/cpu.c b/arch/x86/power/cpu.c index 915bb1639763..aaff9ed7ff45 100644 --- a/arch/x86/power/cpu.c +++ b/arch/x86/power/cpu.c @@ -475,20 +475,8 @@ static int msr_save_cpuid_features(const struct x86_cpu_id *c) } static const struct x86_cpu_id msr_save_cpu_table[] = { - { - .vendor = X86_VENDOR_AMD, - .family = 0x15, - .model = X86_MODEL_ANY, - .feature = X86_FEATURE_ANY, - .driver_data = (kernel_ulong_t)msr_save_cpuid_features, - }, - { - .vendor = X86_VENDOR_AMD, - .family = 0x16, - .model = X86_MODEL_ANY, - .feature = X86_FEATURE_ANY, - .driver_data = (kernel_ulong_t)msr_save_cpuid_features, - }, + X86_MATCH_VENDOR_FAM(AMD, 0x15, &msr_save_cpuid_features), + X86_MATCH_VENDOR_FAM(AMD, 0x16, &msr_save_cpuid_features), {} }; diff --git a/arch/x86/realmode/rm/Makefile b/arch/x86/realmode/rm/Makefile index 99b6332ba540..b11ec5d8f8ac 100644 --- a/arch/x86/realmode/rm/Makefile +++ b/arch/x86/realmode/rm/Makefile @@ -71,5 +71,6 @@ $(obj)/realmode.relocs: $(obj)/realmode.elf FORCE KBUILD_CFLAGS := $(REALMODE_CFLAGS) -D_SETUP -D_WAKEUP \ -I$(srctree)/arch/x86/boot KBUILD_AFLAGS := $(KBUILD_CFLAGS) -D__ASSEMBLY__ +KBUILD_CFLAGS += -fno-asynchronous-unwind-tables GCOV_PROFILE := n UBSAN_SANITIZE := n diff --git a/arch/x86/realmode/rm/realmode.lds.S b/arch/x86/realmode/rm/realmode.lds.S index 64d135d1ee63..63aa51875ba0 100644 --- a/arch/x86/realmode/rm/realmode.lds.S +++ b/arch/x86/realmode/rm/realmode.lds.S @@ -71,7 +71,6 @@ SECTIONS /DISCARD/ : { *(.note*) *(.debug*) - *(.eh_frame*) } #include "pasyms.h" diff --git a/arch/x86/um/Makefile b/arch/x86/um/Makefile index 33c51c064c77..77f70b969d14 100644 --- a/arch/x86/um/Makefile +++ b/arch/x86/um/Makefile @@ -21,6 +21,7 @@ obj-y += checksum_32.o syscalls_32.o obj-$(CONFIG_ELF_CORE) += elfcore.o subarch-y = ../lib/string_32.o ../lib/atomic64_32.o ../lib/atomic64_cx8_32.o +subarch-y += ../kernel/sys_ia32.o else diff --git a/arch/x86/um/sys_call_table_32.c b/arch/x86/um/sys_call_table_32.c index 9649b5ad2ca2..2ed81e581755 100644 --- a/arch/x86/um/sys_call_table_32.c +++ b/arch/x86/um/sys_call_table_32.c @@ -7,7 +7,7 @@ #include <linux/linkage.h> #include <linux/sys.h> #include <linux/cache.h> -#include <generated/user_constants.h> +#include <asm/unistd.h> #include <asm/syscall.h> #define __NO_STUBS @@ -26,11 +26,11 @@ #define old_mmap sys_old_mmap -#define __SYSCALL_I386(nr, sym, qual) extern asmlinkage long sym(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long) ; +#define __SYSCALL_I386(nr, sym) extern asmlinkage long sym(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long) ; #include <asm/syscalls_32.h> #undef __SYSCALL_I386 -#define __SYSCALL_I386(nr, sym, qual) [ nr ] = sym, +#define __SYSCALL_I386(nr, sym) [ nr ] = sym, extern asmlinkage long sys_ni_syscall(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long); diff --git a/arch/x86/um/sys_call_table_64.c b/arch/x86/um/sys_call_table_64.c index c8bc7fb8cbd6..2e8544dafbb0 100644 --- a/arch/x86/um/sys_call_table_64.c +++ b/arch/x86/um/sys_call_table_64.c @@ -7,7 +7,7 @@ #include <linux/linkage.h> #include <linux/sys.h> #include <linux/cache.h> -#include <generated/user_constants.h> +#include <asm/unistd.h> #include <asm/syscall.h> #define __NO_STUBS @@ -36,11 +36,14 @@ #define stub_execveat sys_execveat #define stub_rt_sigreturn sys_rt_sigreturn -#define __SYSCALL_64(nr, sym, qual) extern asmlinkage long sym(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long) ; +#define __SYSCALL_X32(nr, sym) +#define __SYSCALL_COMMON(nr, sym) __SYSCALL_64(nr, sym) + +#define __SYSCALL_64(nr, sym) extern asmlinkage long sym(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long) ; #include <asm/syscalls_64.h> #undef __SYSCALL_64 -#define __SYSCALL_64(nr, sym, qual) [ nr ] = sym, +#define __SYSCALL_64(nr, sym) [ nr ] = sym, extern asmlinkage long sys_ni_syscall(unsigned long, unsigned long, unsigned long, unsigned long, unsigned long, unsigned long); diff --git a/arch/x86/um/user-offsets.c b/arch/x86/um/user-offsets.c index 5b37b7f952dd..c51dd8363d25 100644 --- a/arch/x86/um/user-offsets.c +++ b/arch/x86/um/user-offsets.c @@ -9,18 +9,6 @@ #include <linux/ptrace.h> #include <asm/types.h> -#ifdef __i386__ -#define __SYSCALL_I386(nr, sym, qual) [nr] = 1, -static char syscalls[] = { -#include <asm/syscalls_32.h> -}; -#else -#define __SYSCALL_64(nr, sym, qual) [nr] = 1, -static char syscalls[] = { -#include <asm/syscalls_64.h> -}; -#endif - #define DEFINE(sym, val) \ asm volatile("\n->" #sym " %0 " #val : : "i" (val)) @@ -94,7 +82,4 @@ void foo(void) DEFINE(UM_PROT_READ, PROT_READ); DEFINE(UM_PROT_WRITE, PROT_WRITE); DEFINE(UM_PROT_EXEC, PROT_EXEC); - - DEFINE(__NR_syscall_max, sizeof(syscalls) - 1); - DEFINE(NR_syscalls, sizeof(syscalls)); } diff --git a/arch/x86/xen/enlighten_pv.c b/arch/x86/xen/enlighten_pv.c index 79409120a603..507f4fb88fa7 100644 --- a/arch/x86/xen/enlighten_pv.c +++ b/arch/x86/xen/enlighten_pv.c @@ -72,6 +72,9 @@ #include <asm/mwait.h> #include <asm/pci_x86.h> #include <asm/cpu.h> +#ifdef CONFIG_X86_IOPL_IOPERM +#include <asm/io_bitmap.h> +#endif #ifdef CONFIG_ACPI #include <linux/acpi.h> @@ -837,6 +840,25 @@ static void xen_load_sp0(unsigned long sp0) this_cpu_write(cpu_tss_rw.x86_tss.sp0, sp0); } +#ifdef CONFIG_X86_IOPL_IOPERM +static void xen_update_io_bitmap(void) +{ + struct physdev_set_iobitmap iobitmap; + struct tss_struct *tss = this_cpu_ptr(&cpu_tss_rw); + + native_tss_update_io_bitmap(); + + iobitmap.bitmap = (uint8_t *)(&tss->x86_tss) + + tss->x86_tss.io_bitmap_base; + if (tss->x86_tss.io_bitmap_base == IO_BITMAP_OFFSET_INVALID) + iobitmap.nr_ports = 0; + else + iobitmap.nr_ports = IO_BITMAP_BITS; + + HYPERVISOR_physdev_op(PHYSDEVOP_set_iobitmap, &iobitmap); +} +#endif + static void xen_io_delay(void) { } @@ -1047,6 +1069,9 @@ static const struct pv_cpu_ops xen_cpu_ops __initconst = { .write_idt_entry = xen_write_idt_entry, .load_sp0 = xen_load_sp0, +#ifdef CONFIG_X86_IOPL_IOPERM + .update_io_bitmap = xen_update_io_bitmap, +#endif .io_delay = xen_io_delay, /* Xen takes care of %gs when switching to usermode for us */ diff --git a/arch/x86/xen/smp.c b/arch/x86/xen/smp.c index 7a43b2ae19f1..2097fa0ebdb5 100644 --- a/arch/x86/xen/smp.c +++ b/arch/x86/xen/smp.c @@ -132,7 +132,7 @@ void __init xen_smp_cpus_done(unsigned int max_cpus) if (xen_vcpu_nr(cpu) < MAX_VIRT_CPUS) continue; - rc = cpu_down(cpu); + rc = remove_cpu(cpu); if (rc == 0) { /* diff --git a/arch/x86/xen/time.c b/arch/x86/xen/time.c index befbdd8b17f0..c8897aad13cd 100644 --- a/arch/x86/xen/time.c +++ b/arch/x86/xen/time.c @@ -145,12 +145,19 @@ static struct notifier_block xen_pvclock_gtod_notifier = { .notifier_call = xen_pvclock_gtod_notify, }; +static int xen_cs_enable(struct clocksource *cs) +{ + vclocks_set_used(VDSO_CLOCKMODE_PVCLOCK); + return 0; +} + static struct clocksource xen_clocksource __read_mostly = { - .name = "xen", - .rating = 400, - .read = xen_clocksource_get_cycles, - .mask = ~0, - .flags = CLOCK_SOURCE_IS_CONTINUOUS, + .name = "xen", + .rating = 400, + .read = xen_clocksource_get_cycles, + .mask = CLOCKSOURCE_MASK(64), + .flags = CLOCK_SOURCE_IS_CONTINUOUS, + .enable = xen_cs_enable, }; /* @@ -412,12 +419,13 @@ void xen_restore_time_memory_area(void) ret = HYPERVISOR_vcpu_op(VCPUOP_register_vcpu_time_memory_area, 0, &t); /* - * We don't disable VCLOCK_PVCLOCK entirely if it fails to register the - * secondary time info with Xen or if we migrated to a host without the - * necessary flags. On both of these cases what happens is either - * process seeing a zeroed out pvti or seeing no PVCLOCK_TSC_STABLE_BIT - * bit set. Userspace checks the latter and if 0, it discards the data - * in pvti and fallbacks to a system call for a reliable timestamp. + * We don't disable VDSO_CLOCKMODE_PVCLOCK entirely if it fails to + * register the secondary time info with Xen or if we migrated to a + * host without the necessary flags. On both of these cases what + * happens is either process seeing a zeroed out pvti or seeing no + * PVCLOCK_TSC_STABLE_BIT bit set. Userspace checks the latter and + * if 0, it discards the data in pvti and fallbacks to a system + * call for a reliable timestamp. */ if (ret != 0) pr_notice("Cannot restore secondary vcpu_time_info (err %d)", @@ -443,7 +451,7 @@ static void xen_setup_vsyscall_time_info(void) ret = HYPERVISOR_vcpu_op(VCPUOP_register_vcpu_time_memory_area, 0, &t); if (ret) { - pr_notice("xen: VCLOCK_PVCLOCK not supported (err %d)\n", ret); + pr_notice("xen: VDSO_CLOCKMODE_PVCLOCK not supported (err %d)\n", ret); free_page((unsigned long)ti); return; } @@ -460,14 +468,14 @@ static void xen_setup_vsyscall_time_info(void) if (!ret) free_page((unsigned long)ti); - pr_notice("xen: VCLOCK_PVCLOCK not supported (tsc unstable)\n"); + pr_notice("xen: VDSO_CLOCKMODE_PVCLOCK not supported (tsc unstable)\n"); return; } xen_clock = ti; pvclock_set_pvti_cpu0_va(xen_clock); - xen_clocksource.archdata.vclock_mode = VCLOCK_PVCLOCK; + xen_clocksource.vdso_clock_mode = VDSO_CLOCKMODE_PVCLOCK; } static void __init xen_time_init(void) diff --git a/arch/xtensa/include/asm/futex.h b/arch/xtensa/include/asm/futex.h index 964611083224..a1a27b2ea460 100644 --- a/arch/xtensa/include/asm/futex.h +++ b/arch/xtensa/include/asm/futex.h @@ -72,7 +72,8 @@ static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval, #if XCHAL_HAVE_S32C1I || XCHAL_HAVE_EXCLUSIVE int oldval = 0, ret; - pagefault_disable(); + if (!access_ok(uaddr, sizeof(u32))) + return -EFAULT; switch (op) { case FUTEX_OP_SET: @@ -99,8 +100,6 @@ static inline int arch_futex_atomic_op_inuser(int op, int oparg, int *oval, ret = -ENOSYS; } - pagefault_enable(); - if (!ret) *oval = oldval; diff --git a/arch/xtensa/platforms/iss/simdisk.c b/arch/xtensa/platforms/iss/simdisk.c index 833109880165..49322b66cda9 100644 --- a/arch/xtensa/platforms/iss/simdisk.c +++ b/arch/xtensa/platforms/iss/simdisk.c @@ -267,13 +267,12 @@ static int __init simdisk_setup(struct simdisk *dev, int which, spin_lock_init(&dev->lock); dev->users = 0; - dev->queue = blk_alloc_queue(GFP_KERNEL); + dev->queue = blk_alloc_queue(simdisk_make_request, NUMA_NO_NODE); if (dev->queue == NULL) { pr_err("blk_alloc_queue failed\n"); goto out_alloc_queue; } - blk_queue_make_request(dev->queue, simdisk_make_request); dev->queue->queuedata = dev; dev->gd = alloc_disk(SIMDISK_MINORS); |