diff options
Diffstat (limited to 'arch/powerpc')
-rw-r--r-- | arch/powerpc/configs/pmac32_defconfig | 1 | ||||
-rw-r--r-- | arch/powerpc/configs/ppc6xx_defconfig | 1 | ||||
-rw-r--r-- | arch/powerpc/configs/pseries_defconfig | 1 | ||||
-rw-r--r-- | arch/powerpc/kernel/Makefile | 3 | ||||
-rw-r--r-- | arch/powerpc/kernel/module_64.c | 42 | ||||
-rw-r--r-- | arch/powerpc/mm/ptdump/ptdump.c | 2 | ||||
-rw-r--r-- | arch/powerpc/platforms/85xx/smp.c | 4 |
7 files changed, 38 insertions, 16 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/kernel/Makefile b/arch/powerpc/kernel/Makefile index 5fa68c2ef1f8..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 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/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/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); /* |