diff options
Diffstat (limited to '')
31 files changed, 128 insertions, 161 deletions
diff --git a/arch/powerpc/configs/pmac32_defconfig b/arch/powerpc/configs/pmac32_defconfig index 7aefac5afab0..13885ec563d1 100644 --- a/arch/powerpc/configs/pmac32_defconfig +++ b/arch/powerpc/configs/pmac32_defconfig @@ -169,7 +169,6 @@ CONFIG_USB_USBNET=m CONFIG_B43=m CONFIG_B43LEGACY=m CONFIG_P54_COMMON=m -CONFIG_PRISM54=m CONFIG_INPUT_EVDEV=y # CONFIG_KEYBOARD_ATKBD is not set # CONFIG_MOUSE_PS2 is not set diff --git a/arch/powerpc/configs/ppc6xx_defconfig b/arch/powerpc/configs/ppc6xx_defconfig index 6697c5e6682f..bb549cb1c3e3 100644 --- a/arch/powerpc/configs/ppc6xx_defconfig +++ b/arch/powerpc/configs/ppc6xx_defconfig @@ -1022,7 +1022,6 @@ CONFIG_NFSD=m CONFIG_NFSD_V3_ACL=y CONFIG_NFSD_V4=y CONFIG_CIFS=m -CONFIG_CIFS_WEAK_PW_HASH=y CONFIG_CIFS_UPCALL=y CONFIG_CIFS_XATTR=y CONFIG_CIFS_POSIX=y diff --git a/arch/powerpc/configs/pseries_defconfig b/arch/powerpc/configs/pseries_defconfig index de7641adb899..e64f2242abe1 100644 --- a/arch/powerpc/configs/pseries_defconfig +++ b/arch/powerpc/configs/pseries_defconfig @@ -189,7 +189,6 @@ CONFIG_HVCS=m CONFIG_VIRTIO_CONSOLE=m CONFIG_IBM_BSR=m CONFIG_RAW_DRIVER=y -CONFIG_MAX_RAW_DEVS=1024 CONFIG_I2C_CHARDEV=y CONFIG_FB=y CONFIG_FIRMWARE_EDID=y diff --git a/arch/powerpc/crypto/sha1-spe-glue.c b/arch/powerpc/crypto/sha1-spe-glue.c index 88e8ea73bfa7..9170892a8557 100644 --- a/arch/powerpc/crypto/sha1-spe-glue.c +++ b/arch/powerpc/crypto/sha1-spe-glue.c @@ -13,6 +13,7 @@ #include <linux/mm.h> #include <linux/types.h> #include <crypto/sha1.h> +#include <crypto/sha1_base.h> #include <asm/byteorder.h> #include <asm/switch_to.h> #include <linux/hardirq.h> @@ -55,20 +56,6 @@ static inline void ppc_sha1_clear_context(struct sha1_state *sctx) do { *ptr++ = 0; } while (--count); } -static int ppc_spe_sha1_init(struct shash_desc *desc) -{ - struct sha1_state *sctx = shash_desc_ctx(desc); - - sctx->state[0] = SHA1_H0; - sctx->state[1] = SHA1_H1; - sctx->state[2] = SHA1_H2; - sctx->state[3] = SHA1_H3; - sctx->state[4] = SHA1_H4; - sctx->count = 0; - - return 0; -} - static int ppc_spe_sha1_update(struct shash_desc *desc, const u8 *data, unsigned int len) { @@ -168,7 +155,7 @@ static int ppc_spe_sha1_import(struct shash_desc *desc, const void *in) static struct shash_alg alg = { .digestsize = SHA1_DIGEST_SIZE, - .init = ppc_spe_sha1_init, + .init = sha1_base_init, .update = ppc_spe_sha1_update, .final = ppc_spe_sha1_final, .export = ppc_spe_sha1_export, diff --git a/arch/powerpc/crypto/sha1.c b/arch/powerpc/crypto/sha1.c index 7a55d790cdb1..f283bbd3f121 100644 --- a/arch/powerpc/crypto/sha1.c +++ b/arch/powerpc/crypto/sha1.c @@ -18,21 +18,11 @@ #include <linux/mm.h> #include <linux/types.h> #include <crypto/sha1.h> +#include <crypto/sha1_base.h> #include <asm/byteorder.h> void powerpc_sha_transform(u32 *state, const u8 *src); -static int powerpc_sha1_init(struct shash_desc *desc) -{ - struct sha1_state *sctx = shash_desc_ctx(desc); - - *sctx = (struct sha1_state){ - .state = { SHA1_H0, SHA1_H1, SHA1_H2, SHA1_H3, SHA1_H4 }, - }; - - return 0; -} - static int powerpc_sha1_update(struct shash_desc *desc, const u8 *data, unsigned int len) { @@ -114,7 +104,7 @@ static int powerpc_sha1_import(struct shash_desc *desc, const void *in) static struct shash_alg alg = { .digestsize = SHA1_DIGEST_SIZE, - .init = powerpc_sha1_init, + .init = sha1_base_init, .update = powerpc_sha1_update, .final = powerpc_sha1_final, .export = powerpc_sha1_export, diff --git a/arch/powerpc/crypto/sha256-spe-glue.c b/arch/powerpc/crypto/sha256-spe-glue.c index ffedea7e4bef..2997d13236e0 100644 --- a/arch/powerpc/crypto/sha256-spe-glue.c +++ b/arch/powerpc/crypto/sha256-spe-glue.c @@ -14,6 +14,7 @@ #include <linux/mm.h> #include <linux/types.h> #include <crypto/sha2.h> +#include <crypto/sha256_base.h> #include <asm/byteorder.h> #include <asm/switch_to.h> #include <linux/hardirq.h> @@ -56,40 +57,6 @@ static inline void ppc_sha256_clear_context(struct sha256_state *sctx) do { *ptr++ = 0; } while (--count); } -static int ppc_spe_sha256_init(struct shash_desc *desc) -{ - struct sha256_state *sctx = shash_desc_ctx(desc); - - sctx->state[0] = SHA256_H0; - sctx->state[1] = SHA256_H1; - sctx->state[2] = SHA256_H2; - sctx->state[3] = SHA256_H3; - sctx->state[4] = SHA256_H4; - sctx->state[5] = SHA256_H5; - sctx->state[6] = SHA256_H6; - sctx->state[7] = SHA256_H7; - sctx->count = 0; - - return 0; -} - -static int ppc_spe_sha224_init(struct shash_desc *desc) -{ - struct sha256_state *sctx = shash_desc_ctx(desc); - - sctx->state[0] = SHA224_H0; - sctx->state[1] = SHA224_H1; - sctx->state[2] = SHA224_H2; - sctx->state[3] = SHA224_H3; - sctx->state[4] = SHA224_H4; - sctx->state[5] = SHA224_H5; - sctx->state[6] = SHA224_H6; - sctx->state[7] = SHA224_H7; - sctx->count = 0; - - return 0; -} - static int ppc_spe_sha256_update(struct shash_desc *desc, const u8 *data, unsigned int len) { @@ -214,7 +181,7 @@ static int ppc_spe_sha256_import(struct shash_desc *desc, const void *in) static struct shash_alg algs[2] = { { .digestsize = SHA256_DIGEST_SIZE, - .init = ppc_spe_sha256_init, + .init = sha256_base_init, .update = ppc_spe_sha256_update, .final = ppc_spe_sha256_final, .export = ppc_spe_sha256_export, @@ -230,7 +197,7 @@ static struct shash_alg algs[2] = { { } }, { .digestsize = SHA224_DIGEST_SIZE, - .init = ppc_spe_sha224_init, + .init = sha224_base_init, .update = ppc_spe_sha256_update, .final = ppc_spe_sha224_final, .export = ppc_spe_sha256_export, diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile index 0e3640e14eb1..b039877c743d 100644 --- a/arch/powerpc/kernel/Makefile +++ b/arch/powerpc/kernel/Makefile @@ -47,7 +47,7 @@ obj-y := cputable.o syscalls.o \ udbg.o misc.o io.o misc_$(BITS).o \ of_platform.o prom_parse.o firmware.o \ hw_breakpoint_constraints.o interrupt.o \ - kdebugfs.o + kdebugfs.o stacktrace.o obj-y += ptrace/ obj-$(CONFIG_PPC64) += setup_64.o \ paca.o nvram_64.o note.o @@ -116,7 +116,6 @@ obj-$(CONFIG_OPTPROBES) += optprobes.o optprobes_head.o obj-$(CONFIG_KPROBES_ON_FTRACE) += kprobes-ftrace.o obj-$(CONFIG_UPROBES) += uprobes.o obj-$(CONFIG_PPC_UDBG_16550) += legacy_serial.o udbg_16550.o -obj-$(CONFIG_STACKTRACE) += stacktrace.o obj-$(CONFIG_SWIOTLB) += dma-swiotlb.o obj-$(CONFIG_ARCH_HAS_DMA_SET_MASK) += dma-mask.o @@ -196,3 +195,6 @@ clean-files := vmlinux.lds # Force dependency (incbin is bad) $(obj)/vdso32_wrapper.o : $(obj)/vdso32/vdso32.so.dbg $(obj)/vdso64_wrapper.o : $(obj)/vdso64/vdso64.so.dbg + +# for cleaning +subdir- += vdso32 vdso64 diff --git a/arch/powerpc/kernel/head_32.h b/arch/powerpc/kernel/head_32.h index 6b1ec9e3541b..349c4a820231 100644 --- a/arch/powerpc/kernel/head_32.h +++ b/arch/powerpc/kernel/head_32.h @@ -202,11 +202,11 @@ vmap_stack_overflow: mfspr r1, SPRN_SPRG_THREAD lwz r1, TASK_CPU - THREAD(r1) slwi r1, r1, 3 - addis r1, r1, emergency_ctx@ha + addis r1, r1, emergency_ctx-PAGE_OFFSET@ha #else - lis r1, emergency_ctx@ha + lis r1, emergency_ctx-PAGE_OFFSET@ha #endif - lwz r1, emergency_ctx@l(r1) + lwz r1, emergency_ctx-PAGE_OFFSET@l(r1) addi r1, r1, THREAD_SIZE - INT_FRAME_SIZE EXCEPTION_PROLOG_2 0 vmap_stack_overflow prepare_transfer_to_handler diff --git a/arch/powerpc/kernel/head_8xx.S b/arch/powerpc/kernel/head_8xx.S index 2d596881b70e..0d073b9fd52c 100644 --- a/arch/powerpc/kernel/head_8xx.S +++ b/arch/powerpc/kernel/head_8xx.S @@ -733,6 +733,7 @@ _GLOBAL(mmu_pin_tlb) #ifdef CONFIG_PIN_TLB_DATA LOAD_REG_IMMEDIATE(r6, PAGE_OFFSET) LOAD_REG_IMMEDIATE(r7, MI_SVALID | MI_PS8MEG | _PMD_ACCESSED) + li r8, 0 #ifdef CONFIG_PIN_TLB_IMMR li r0, 3 #else @@ -741,26 +742,26 @@ _GLOBAL(mmu_pin_tlb) mtctr r0 cmpwi r4, 0 beq 4f - LOAD_REG_IMMEDIATE(r8, 0xf0 | _PAGE_RO | _PAGE_SPS | _PAGE_SH | _PAGE_PRESENT) LOAD_REG_ADDR(r9, _sinittext) 2: ori r0, r6, MD_EVALID + ori r12, r8, 0xf0 | _PAGE_RO | _PAGE_SPS | _PAGE_SH | _PAGE_PRESENT mtspr SPRN_MD_CTR, r5 mtspr SPRN_MD_EPN, r0 mtspr SPRN_MD_TWC, r7 - mtspr SPRN_MD_RPN, r8 + mtspr SPRN_MD_RPN, r12 addi r5, r5, 0x100 addis r6, r6, SZ_8M@h addis r8, r8, SZ_8M@h cmplw r6, r9 bdnzt lt, 2b - -4: LOAD_REG_IMMEDIATE(r8, 0xf0 | _PAGE_DIRTY | _PAGE_SPS | _PAGE_SH | _PAGE_PRESENT) +4: 2: ori r0, r6, MD_EVALID + ori r12, r8, 0xf0 | _PAGE_DIRTY | _PAGE_SPS | _PAGE_SH | _PAGE_PRESENT mtspr SPRN_MD_CTR, r5 mtspr SPRN_MD_EPN, r0 mtspr SPRN_MD_TWC, r7 - mtspr SPRN_MD_RPN, r8 + mtspr SPRN_MD_RPN, r12 addi r5, r5, 0x100 addis r6, r6, SZ_8M@h addis r8, r8, SZ_8M@h @@ -781,7 +782,7 @@ _GLOBAL(mmu_pin_tlb) #endif #if defined(CONFIG_PIN_TLB_IMMR) || defined(CONFIG_PIN_TLB_DATA) lis r0, (MD_RSV4I | MD_TWAM)@h - mtspr SPRN_MI_CTR, r0 + mtspr SPRN_MD_CTR, r0 #endif mtspr SPRN_SRR1, r10 mtspr SPRN_SRR0, r11 diff --git a/arch/powerpc/kernel/interrupt.c b/arch/powerpc/kernel/interrupt.c index 835b626cd476..563ebfcd16e2 100644 --- a/arch/powerpc/kernel/interrupt.c +++ b/arch/powerpc/kernel/interrupt.c @@ -148,7 +148,7 @@ notrace long system_call_exception(long r3, long r4, long r5, */ if (IS_ENABLED(CONFIG_PPC_TRANSACTIONAL_MEM) && unlikely(MSR_TM_TRANSACTIONAL(regs->msr))) - current_thread_info()->flags |= _TIF_RESTOREALL; + set_bits(_TIF_RESTOREALL, ¤t_thread_info()->flags); /* * If the system call was made with a transaction active, doom it and @@ -181,7 +181,7 @@ notrace long system_call_exception(long r3, long r4, long r5, local_irq_enable(); - if (unlikely(current_thread_info()->flags & _TIF_SYSCALL_DOTRACE)) { + if (unlikely(read_thread_flags() & _TIF_SYSCALL_DOTRACE)) { if (unlikely(trap_is_unsupported_scv(regs))) { /* Unsupported scv vector */ _exception(SIGILL, regs, ILL_ILLOPC, regs->nip); @@ -343,7 +343,7 @@ interrupt_exit_user_prepare_main(unsigned long ret, struct pt_regs *regs) unsigned long ti_flags; again: - ti_flags = READ_ONCE(current_thread_info()->flags); + ti_flags = read_thread_flags(); while (unlikely(ti_flags & (_TIF_USER_WORK_MASK & ~_TIF_RESTORE_TM))) { local_irq_enable(); if (ti_flags & _TIF_NEED_RESCHED) { @@ -359,7 +359,7 @@ again: do_notify_resume(regs, ti_flags); } local_irq_disable(); - ti_flags = READ_ONCE(current_thread_info()->flags); + ti_flags = read_thread_flags(); } if (IS_ENABLED(CONFIG_PPC_BOOK3S_64) && IS_ENABLED(CONFIG_PPC_FPU)) { @@ -437,7 +437,7 @@ notrace unsigned long syscall_exit_prepare(unsigned long r3, /* Check whether the syscall is issued inside a restartable sequence */ rseq_syscall(regs); - ti_flags = current_thread_info()->flags; + ti_flags = read_thread_flags(); if (unlikely(r3 >= (unsigned long)-MAX_ERRNO) && is_not_scv) { if (likely(!(ti_flags & (_TIF_NOERROR | _TIF_RESTOREALL)))) { @@ -532,8 +532,7 @@ notrace unsigned long interrupt_exit_kernel_prepare(struct pt_regs *regs) unsigned long flags; unsigned long ret = 0; unsigned long kuap; - bool stack_store = current_thread_info()->flags & - _TIF_EMULATE_STACK_STORE; + bool stack_store = read_thread_flags() & _TIF_EMULATE_STACK_STORE; if (regs_is_unrecoverable(regs)) unrecoverable_exception(regs); @@ -554,7 +553,7 @@ notrace unsigned long interrupt_exit_kernel_prepare(struct pt_regs *regs) again: if (IS_ENABLED(CONFIG_PREEMPT)) { /* Return to preemptible kernel context */ - if (unlikely(current_thread_info()->flags & _TIF_NEED_RESCHED)) { + if (unlikely(read_thread_flags() & _TIF_NEED_RESCHED)) { if (preempt_count() == 0) preempt_schedule_irq(); } diff --git a/arch/powerpc/kernel/module_64.c b/arch/powerpc/kernel/module_64.c index 6baa676e7cb6..5d77d3f5fbb5 100644 --- a/arch/powerpc/kernel/module_64.c +++ b/arch/powerpc/kernel/module_64.c @@ -422,11 +422,17 @@ static inline int create_stub(const Elf64_Shdr *sechdrs, const char *name) { long reladdr; + func_desc_t desc; + int i; if (is_mprofile_ftrace_call(name)) return create_ftrace_stub(entry, addr, me); - memcpy(entry->jump, ppc64_stub_insns, sizeof(ppc64_stub_insns)); + for (i = 0; i < sizeof(ppc64_stub_insns) / sizeof(u32); i++) { + if (patch_instruction(&entry->jump[i], + ppc_inst(ppc64_stub_insns[i]))) + return 0; + } /* Stub uses address relative to r2. */ reladdr = (unsigned long)entry - my_r2(sechdrs, me); @@ -437,10 +443,24 @@ static inline int create_stub(const Elf64_Shdr *sechdrs, } pr_debug("Stub %p get data from reladdr %li\n", entry, reladdr); - entry->jump[0] |= PPC_HA(reladdr); - entry->jump[1] |= PPC_LO(reladdr); - entry->funcdata = func_desc(addr); - entry->magic = STUB_MAGIC; + if (patch_instruction(&entry->jump[0], + ppc_inst(entry->jump[0] | PPC_HA(reladdr)))) + return 0; + + if (patch_instruction(&entry->jump[1], + ppc_inst(entry->jump[1] | PPC_LO(reladdr)))) + return 0; + + // func_desc_t is 8 bytes if ABIv2, else 16 bytes + desc = func_desc(addr); + for (i = 0; i < sizeof(func_desc_t) / sizeof(u32); i++) { + if (patch_instruction(((u32 *)&entry->funcdata) + i, + ppc_inst(((u32 *)(&desc))[i]))) + return 0; + } + + if (patch_instruction(&entry->magic, ppc_inst(STUB_MAGIC))) + return 0; return 1; } @@ -495,8 +515,11 @@ static int restore_r2(const char *name, u32 *instruction, struct module *me) me->name, *instruction, instruction); return 0; } + /* ld r2,R2_STACK_OFFSET(r1) */ - *instruction = PPC_INST_LD_TOC; + if (patch_instruction(instruction, ppc_inst(PPC_INST_LD_TOC))) + return 0; + return 1; } @@ -636,9 +659,12 @@ int apply_relocate_add(Elf64_Shdr *sechdrs, } /* Only replace bits 2 through 26 */ - *(uint32_t *)location - = (*(uint32_t *)location & ~0x03fffffc) + value = (*(uint32_t *)location & ~0x03fffffc) | (value & 0x03fffffc); + + if (patch_instruction((u32 *)location, ppc_inst(value))) + return -EFAULT; + break; case R_PPC64_REL64: diff --git a/arch/powerpc/kernel/ptrace/ptrace.c b/arch/powerpc/kernel/ptrace/ptrace.c index 7c7093c17c45..c43f77e2ac31 100644 --- a/arch/powerpc/kernel/ptrace/ptrace.c +++ b/arch/powerpc/kernel/ptrace/ptrace.c @@ -260,8 +260,7 @@ long do_syscall_trace_enter(struct pt_regs *regs) { u32 flags; - flags = READ_ONCE(current_thread_info()->flags) & - (_TIF_SYSCALL_EMU | _TIF_SYSCALL_TRACE); + flags = read_thread_flags() & (_TIF_SYSCALL_EMU | _TIF_SYSCALL_TRACE); if (flags) { int rc = tracehook_report_syscall_entry(regs); diff --git a/arch/powerpc/kernel/signal.h b/arch/powerpc/kernel/signal.h index 1f07317964e4..618aeccdf691 100644 --- a/arch/powerpc/kernel/signal.h +++ b/arch/powerpc/kernel/signal.h @@ -25,8 +25,14 @@ static inline int __get_user_sigset(sigset_t *dst, const sigset_t __user *src) return __get_user(dst->sig[0], (u64 __user *)&src->sig[0]); } -#define unsafe_get_user_sigset(dst, src, label) \ - unsafe_get_user((dst)->sig[0], (u64 __user *)&(src)->sig[0], label) +#define unsafe_get_user_sigset(dst, src, label) do { \ + sigset_t *__dst = dst; \ + const sigset_t __user *__src = src; \ + int i; \ + \ + for (i = 0; i < _NSIG_WORDS; i++) \ + unsafe_get_user(__dst->sig[i], &__src->sig[i], label); \ +} while (0) #ifdef CONFIG_VSX extern unsigned long copy_vsx_to_user(void __user *to, diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c index 00a9c9cd6d42..3e053e2fd6b6 100644 --- a/arch/powerpc/kernel/signal_32.c +++ b/arch/powerpc/kernel/signal_32.c @@ -1063,7 +1063,7 @@ SYSCALL_DEFINE3(swapcontext, struct ucontext __user *, old_ctx, * We kill the task with a SIGSEGV in this situation. */ if (do_setcontext(new_ctx, regs, 0)) { - force_fatal_sig(SIGSEGV); + force_exit_sig(SIGSEGV); return -EFAULT; } diff --git a/arch/powerpc/kernel/signal_64.c b/arch/powerpc/kernel/signal_64.c index ef518535d436..d1e1fc0acbea 100644 --- a/arch/powerpc/kernel/signal_64.c +++ b/arch/powerpc/kernel/signal_64.c @@ -704,7 +704,7 @@ SYSCALL_DEFINE3(swapcontext, struct ucontext __user *, old_ctx, */ if (__get_user_sigset(&set, &new_ctx->uc_sigmask)) { - force_fatal_sig(SIGSEGV); + force_exit_sig(SIGSEGV); return -EFAULT; } set_current_blocked(&set); @@ -713,7 +713,7 @@ SYSCALL_DEFINE3(swapcontext, struct ucontext __user *, old_ctx, return -EFAULT; if (__unsafe_restore_sigcontext(current, NULL, 0, &new_ctx->uc_mcontext)) { user_read_access_end(); - force_fatal_sig(SIGSEGV); + force_exit_sig(SIGSEGV); return -EFAULT; } user_read_access_end(); diff --git a/arch/powerpc/kernel/syscalls/syscall.tbl b/arch/powerpc/kernel/syscalls/syscall.tbl index 7bef917cc84e..15109af9d075 100644 --- a/arch/powerpc/kernel/syscalls/syscall.tbl +++ b/arch/powerpc/kernel/syscalls/syscall.tbl @@ -528,3 +528,4 @@ 446 common landlock_restrict_self sys_landlock_restrict_self # 447 reserved for memfd_secret 448 common process_mrelease sys_process_mrelease +449 common futex_waitv sys_futex_waitv diff --git a/arch/powerpc/kernel/watchdog.c b/arch/powerpc/kernel/watchdog.c index f9ea0e5357f9..3fa6d240bade 100644 --- a/arch/powerpc/kernel/watchdog.c +++ b/arch/powerpc/kernel/watchdog.c @@ -187,6 +187,12 @@ static void watchdog_smp_panic(int cpu, u64 tb) if (sysctl_hardlockup_all_cpu_backtrace) trigger_allbutself_cpu_backtrace(); + /* + * Force flush any remote buffers that might be stuck in IRQ context + * and therefore could not run their irq_work. + */ + printk_trigger_flush(); + if (hardlockup_panic) nmi_panic(NULL, "Hard LOCKUP"); diff --git a/arch/powerpc/kvm/book3s_hv_builtin.c b/arch/powerpc/kvm/book3s_hv_builtin.c index fcf4760a3a0e..70b7a8f97153 100644 --- a/arch/powerpc/kvm/book3s_hv_builtin.c +++ b/arch/powerpc/kvm/book3s_hv_builtin.c @@ -695,6 +695,7 @@ static void flush_guest_tlb(struct kvm *kvm) "r" (0) : "memory"); } asm volatile("ptesync": : :"memory"); + // POWER9 congruence-class TLBIEL leaves ERAT. Flush it now. asm volatile(PPC_RADIX_INVALIDATE_ERAT_GUEST : : :"memory"); } else { for (set = 0; set < kvm->arch.tlb_sets; ++set) { @@ -705,7 +706,9 @@ static void flush_guest_tlb(struct kvm *kvm) rb += PPC_BIT(51); /* increment set number */ } asm volatile("ptesync": : :"memory"); - asm volatile(PPC_ISA_3_0_INVALIDATE_ERAT : : :"memory"); + // POWER9 congruence-class TLBIEL leaves ERAT. Flush it now. + if (cpu_has_feature(CPU_FTR_ARCH_300)) + asm volatile(PPC_ISA_3_0_INVALIDATE_ERAT : : :"memory"); } } diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S index eb776d0c5d8e..32a4b4d412b9 100644 --- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S +++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S @@ -2005,7 +2005,7 @@ hcall_real_table: .globl hcall_real_table_end hcall_real_table_end: -_GLOBAL(kvmppc_h_set_xdabr) +_GLOBAL_TOC(kvmppc_h_set_xdabr) EXPORT_SYMBOL_GPL(kvmppc_h_set_xdabr) andi. r0, r5, DABRX_USER | DABRX_KERNEL beq 6f @@ -2015,7 +2015,7 @@ EXPORT_SYMBOL_GPL(kvmppc_h_set_xdabr) 6: li r3, H_PARAMETER blr -_GLOBAL(kvmppc_h_set_dabr) +_GLOBAL_TOC(kvmppc_h_set_dabr) EXPORT_SYMBOL_GPL(kvmppc_h_set_dabr) li r5, DABRX_USER | DABRX_KERNEL 3: diff --git a/arch/powerpc/kvm/powerpc.c b/arch/powerpc/kvm/powerpc.c index 35e9cccdeef9..a72920f4f221 100644 --- a/arch/powerpc/kvm/powerpc.c +++ b/arch/powerpc/kvm/powerpc.c @@ -641,9 +641,9 @@ int kvm_vm_ioctl_check_extension(struct kvm *kvm, long ext) * implementations just count online CPUs. */ if (hv_enabled) - r = num_present_cpus(); + r = min_t(unsigned int, num_present_cpus(), KVM_MAX_VCPUS); else - r = num_online_cpus(); + r = min_t(unsigned int, num_online_cpus(), KVM_MAX_VCPUS); break; case KVM_CAP_MAX_VCPUS: r = KVM_MAX_VCPUS; diff --git a/arch/powerpc/mm/nohash/kaslr_booke.c b/arch/powerpc/mm/nohash/kaslr_booke.c index 8fc49b1b4a91..6ec978967da0 100644 --- a/arch/powerpc/mm/nohash/kaslr_booke.c +++ b/arch/powerpc/mm/nohash/kaslr_booke.c @@ -314,7 +314,7 @@ static unsigned long __init kaslr_choose_location(void *dt_ptr, phys_addr_t size pr_warn("KASLR: No safe seed for randomizing the kernel base.\n"); ram = min_t(phys_addr_t, __max_low_memory, size); - ram = map_mem_in_cams(ram, CONFIG_LOWMEM_CAM_NUM, true, false); + ram = map_mem_in_cams(ram, CONFIG_LOWMEM_CAM_NUM, true, true); linear_sz = min_t(unsigned long, ram, SZ_512M); /* If the linear size is smaller than 64M, do not randmize */ diff --git a/arch/powerpc/mm/nohash/tlb.c b/arch/powerpc/mm/nohash/tlb.c index 89353d4f5604..647bf454a0fa 100644 --- a/arch/powerpc/mm/nohash/tlb.c +++ b/arch/powerpc/mm/nohash/tlb.c @@ -645,7 +645,7 @@ static void early_init_this_mmu(void) if (map) linear_map_top = map_mem_in_cams(linear_map_top, - num_cams, true, true); + num_cams, false, true); } #endif @@ -766,7 +766,7 @@ void setup_initial_memory_limit(phys_addr_t first_memblock_base, num_cams = (mfspr(SPRN_TLB1CFG) & TLBnCFG_N_ENTRY) / 4; linear_sz = map_mem_in_cams(first_memblock_size, num_cams, - false, true); + true, true); ppc64_rma_size = min_t(u64, linear_sz, 0x40000000); } else diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c index 6f14c8fb6359..59d3cfcd7887 100644 --- a/arch/powerpc/mm/numa.c +++ b/arch/powerpc/mm/numa.c @@ -376,9 +376,9 @@ static void initialize_form2_numa_distance_lookup_table(void) { int i, j; struct device_node *root; - const __u8 *numa_dist_table; + const __u8 *form2_distances; const __be32 *numa_lookup_index; - int numa_dist_table_length; + int form2_distances_length; int max_numa_index, distance_index; if (firmware_has_feature(FW_FEATURE_OPAL)) @@ -392,45 +392,41 @@ static void initialize_form2_numa_distance_lookup_table(void) max_numa_index = of_read_number(&numa_lookup_index[0], 1); /* first element of the array is the size and is encode-int */ - numa_dist_table = of_get_property(root, "ibm,numa-distance-table", NULL); - numa_dist_table_length = of_read_number((const __be32 *)&numa_dist_table[0], 1); + form2_distances = of_get_property(root, "ibm,numa-distance-table", NULL); + form2_distances_length = of_read_number((const __be32 *)&form2_distances[0], 1); /* Skip the size which is encoded int */ - numa_dist_table += sizeof(__be32); + form2_distances += sizeof(__be32); - pr_debug("numa_dist_table_len = %d, numa_dist_indexes_len = %d\n", - numa_dist_table_length, max_numa_index); + pr_debug("form2_distances_len = %d, numa_dist_indexes_len = %d\n", + form2_distances_length, max_numa_index); for (i = 0; i < max_numa_index; i++) /* +1 skip the max_numa_index in the property */ numa_id_index_table[i] = of_read_number(&numa_lookup_index[i + 1], 1); - if (numa_dist_table_length != max_numa_index * max_numa_index) { + if (form2_distances_length != max_numa_index * max_numa_index) { WARN(1, "Wrong NUMA distance information\n"); - /* consider everybody else just remote. */ - for (i = 0; i < max_numa_index; i++) { - for (j = 0; j < max_numa_index; j++) { - int nodeA = numa_id_index_table[i]; - int nodeB = numa_id_index_table[j]; - - if (nodeA == nodeB) - numa_distance_table[nodeA][nodeB] = LOCAL_DISTANCE; - else - numa_distance_table[nodeA][nodeB] = REMOTE_DISTANCE; - } - } + form2_distances = NULL; // don't use it } - distance_index = 0; for (i = 0; i < max_numa_index; i++) { for (j = 0; j < max_numa_index; j++) { int nodeA = numa_id_index_table[i]; int nodeB = numa_id_index_table[j]; - - numa_distance_table[nodeA][nodeB] = numa_dist_table[distance_index++]; - pr_debug("dist[%d][%d]=%d ", nodeA, nodeB, numa_distance_table[nodeA][nodeB]); + int dist; + + if (form2_distances) + dist = form2_distances[distance_index++]; + else if (nodeA == nodeB) + dist = LOCAL_DISTANCE; + else + dist = REMOTE_DISTANCE; + numa_distance_table[nodeA][nodeB] = dist; + pr_debug("dist[%d][%d]=%d ", nodeA, nodeB, dist); } } + of_node_put(root); } diff --git a/arch/powerpc/mm/ptdump/ptdump.c b/arch/powerpc/mm/ptdump/ptdump.c index bf251191e78d..32bfb215c485 100644 --- a/arch/powerpc/mm/ptdump/ptdump.c +++ b/arch/powerpc/mm/ptdump/ptdump.c @@ -183,7 +183,7 @@ static void note_prot_wx(struct pg_state *st, unsigned long addr) { pte_t pte = __pte(st->current_flags); - if (!IS_ENABLED(CONFIG_PPC_DEBUG_WX) || !st->check_wx) + if (!IS_ENABLED(CONFIG_DEBUG_WX) || !st->check_wx) return; if (!pte_write(pte) || !pte_exec(pte)) diff --git a/arch/powerpc/net/bpf_jit_comp32.c b/arch/powerpc/net/bpf_jit_comp32.c index 0da31d41d413..8a4faa05f9e4 100644 --- a/arch/powerpc/net/bpf_jit_comp32.c +++ b/arch/powerpc/net/bpf_jit_comp32.c @@ -221,13 +221,13 @@ static int bpf_jit_emit_tail_call(u32 *image, struct codegen_context *ctx, u32 o PPC_BCC(COND_GE, out); /* - * if (tail_call_cnt > MAX_TAIL_CALL_CNT) + * if (tail_call_cnt >= MAX_TAIL_CALL_CNT) * goto out; */ EMIT(PPC_RAW_CMPLWI(_R0, MAX_TAIL_CALL_CNT)); /* tail_call_cnt++; */ EMIT(PPC_RAW_ADDIC(_R0, _R0, 1)); - PPC_BCC(COND_GT, out); + PPC_BCC(COND_GE, out); /* prog = array->ptrs[index]; */ EMIT(PPC_RAW_RLWINM(_R3, b2p_index, 2, 0, 29)); diff --git a/arch/powerpc/net/bpf_jit_comp64.c b/arch/powerpc/net/bpf_jit_comp64.c index 8b5157ccfeba..8571aafcc9e1 100644 --- a/arch/powerpc/net/bpf_jit_comp64.c +++ b/arch/powerpc/net/bpf_jit_comp64.c @@ -228,12 +228,12 @@ static int bpf_jit_emit_tail_call(u32 *image, struct codegen_context *ctx, u32 o PPC_BCC(COND_GE, out); /* - * if (tail_call_cnt > MAX_TAIL_CALL_CNT) + * if (tail_call_cnt >= MAX_TAIL_CALL_CNT) * goto out; */ PPC_BPF_LL(b2p[TMP_REG_1], 1, bpf_jit_stack_tailcallcnt(ctx)); EMIT(PPC_RAW_CMPLWI(b2p[TMP_REG_1], MAX_TAIL_CALL_CNT)); - PPC_BCC(COND_GT, out); + PPC_BCC(COND_GE, out); /* * tail_call_cnt++; diff --git a/arch/powerpc/platforms/83xx/mcu_mpc8349emitx.c b/arch/powerpc/platforms/83xx/mcu_mpc8349emitx.c index bb789f33c70e..a38372f9ac12 100644 --- a/arch/powerpc/platforms/83xx/mcu_mpc8349emitx.c +++ b/arch/powerpc/platforms/83xx/mcu_mpc8349emitx.c @@ -186,7 +186,6 @@ err: static int mcu_remove(struct i2c_client *client) { struct mcu *mcu = i2c_get_clientdata(client); - int ret; kthread_stop(shutdown_thread); diff --git a/arch/powerpc/platforms/85xx/smp.c b/arch/powerpc/platforms/85xx/smp.c index 83f4a6389a28..d7081e9af65c 100644 --- a/arch/powerpc/platforms/85xx/smp.c +++ b/arch/powerpc/platforms/85xx/smp.c @@ -220,7 +220,7 @@ static int smp_85xx_start_cpu(int cpu) local_irq_save(flags); hard_irq_disable(); - if (qoriq_pm_ops) + if (qoriq_pm_ops && qoriq_pm_ops->cpu_up_prepare) qoriq_pm_ops->cpu_up_prepare(cpu); /* if cpu is not spinning, reset it */ @@ -292,7 +292,7 @@ static int smp_85xx_kick_cpu(int nr) booting_thread_hwid = cpu_thread_in_core(nr); primary = cpu_first_thread_sibling(nr); - if (qoriq_pm_ops) + if (qoriq_pm_ops && qoriq_pm_ops->cpu_up_prepare) qoriq_pm_ops->cpu_up_prepare(nr); /* diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c index 49b401536d29..8f998e55735b 100644 --- a/arch/powerpc/platforms/pseries/iommu.c +++ b/arch/powerpc/platforms/pseries/iommu.c @@ -1094,15 +1094,6 @@ static phys_addr_t ddw_memory_hotplug_max(void) phys_addr_t max_addr = memory_hotplug_max(); struct device_node *memory; - /* - * The "ibm,pmemory" can appear anywhere in the address space. - * Assuming it is still backed by page structs, set the upper limit - * for the huge DMA window as MAX_PHYSMEM_BITS. - */ - if (of_find_node_by_type(NULL, "ibm,pmemory")) - return (sizeof(phys_addr_t) * 8 <= MAX_PHYSMEM_BITS) ? - (phys_addr_t) -1 : (1ULL << MAX_PHYSMEM_BITS); - for_each_node_by_type(memory, "memory") { unsigned long start, size; int n_mem_addr_cells, n_mem_size_cells, len; @@ -1238,7 +1229,6 @@ static bool enable_ddw(struct pci_dev *dev, struct device_node *pdn) u32 ddw_avail[DDW_APPLICABLE_SIZE]; struct dma_win *window; struct property *win64; - bool ddw_enabled = false; struct failed_ddw_pdn *fpdn; bool default_win_removed = false, direct_mapping = false; bool pmem_present; @@ -1253,7 +1243,6 @@ static bool enable_ddw(struct pci_dev *dev, struct device_node *pdn) if (find_existing_ddw(pdn, &dev->dev.archdata.dma_offset, &len)) { direct_mapping = (len >= max_ram_len); - ddw_enabled = true; goto out_unlock; } @@ -1367,8 +1356,10 @@ static bool enable_ddw(struct pci_dev *dev, struct device_node *pdn) len = order_base_2(query.largest_available_block << page_shift); win_name = DMA64_PROPNAME; } else { - direct_mapping = true; - win_name = DIRECT64_PROPNAME; + direct_mapping = !default_win_removed || + (len == MAX_PHYSMEM_BITS) || + (!pmem_present && (len == max_ram_len)); + win_name = direct_mapping ? DIRECT64_PROPNAME : DMA64_PROPNAME; } ret = create_ddw(dev, ddw_avail, &create, page_shift, len); @@ -1406,8 +1397,8 @@ static bool enable_ddw(struct pci_dev *dev, struct device_node *pdn) dev_info(&dev->dev, "failed to map DMA window for %pOF: %d\n", dn, ret); - /* Make sure to clean DDW if any TCE was set*/ - clean_dma_window(pdn, win64->value); + /* Make sure to clean DDW if any TCE was set*/ + clean_dma_window(pdn, win64->value); goto out_del_list; } } else { @@ -1454,7 +1445,6 @@ static bool enable_ddw(struct pci_dev *dev, struct device_node *pdn) spin_unlock(&dma_win_list_lock); dev->dev.archdata.dma_offset = win_addr; - ddw_enabled = true; goto out_unlock; out_del_list: @@ -1490,10 +1480,10 @@ out_unlock: * as RAM, then we failed to create a window to cover persistent * memory and need to set the DMA limit. */ - if (pmem_present && ddw_enabled && direct_mapping && len == max_ram_len) + if (pmem_present && direct_mapping && len == max_ram_len) dev->dev.bus_dma_limit = dev->dev.archdata.dma_offset + (1ULL << len); - return ddw_enabled && direct_mapping; + return direct_mapping; } static void pci_dma_dev_setup_pSeriesLP(struct pci_dev *dev) diff --git a/arch/powerpc/sysdev/xive/Kconfig b/arch/powerpc/sysdev/xive/Kconfig index 97796c6b63f0..785c292d104b 100644 --- a/arch/powerpc/sysdev/xive/Kconfig +++ b/arch/powerpc/sysdev/xive/Kconfig @@ -3,7 +3,6 @@ config PPC_XIVE bool select PPC_SMP_MUXED_IPI select HARDIRQS_SW_RESEND - select IRQ_DOMAIN_NOMAP config PPC_XIVE_NATIVE bool diff --git a/arch/powerpc/sysdev/xive/common.c b/arch/powerpc/sysdev/xive/common.c index c5d75c02ad8b..7b69299c2912 100644 --- a/arch/powerpc/sysdev/xive/common.c +++ b/arch/powerpc/sysdev/xive/common.c @@ -1443,8 +1443,7 @@ static const struct irq_domain_ops xive_irq_domain_ops = { static void __init xive_init_host(struct device_node *np) { - xive_irq_domain = irq_domain_add_nomap(np, XIVE_MAX_IRQ, - &xive_irq_domain_ops, NULL); + xive_irq_domain = irq_domain_add_tree(np, &xive_irq_domain_ops, NULL); if (WARN_ON(xive_irq_domain == NULL)) return; irq_set_default_host(xive_irq_domain); |