diff options
Diffstat (limited to 'arch/powerpc')
51 files changed, 263 insertions, 450 deletions
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig index 9f2b75fe2c2d..5eb4d969afbf 100644 --- a/arch/powerpc/Kconfig +++ b/arch/powerpc/Kconfig @@ -197,6 +197,7 @@ config PPC select HAVE_IOREMAP_PROT select HAVE_IRQ_EXIT_ON_IRQ_STACK select HAVE_KERNEL_GZIP + select HAVE_KERNEL_XZ if PPC_BOOK3S select HAVE_KPROBES select HAVE_KPROBES_ON_FTRACE select HAVE_KRETPROBES diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile index bd06a3ccda31..2ea575cb3401 100644 --- a/arch/powerpc/Makefile +++ b/arch/powerpc/Makefile @@ -244,6 +244,7 @@ cpu-as-$(CONFIG_4xx) += -Wa,-m405 cpu-as-$(CONFIG_ALTIVEC) += $(call as-option,-Wa$(comma)-maltivec) cpu-as-$(CONFIG_E200) += -Wa,-me200 cpu-as-$(CONFIG_PPC_BOOK3S_64) += -Wa,-mpower4 +cpu-as-$(CONFIG_PPC_E500MC) += $(call as-option,-Wa$(comma)-me500mc) KBUILD_AFLAGS += $(cpu-as-y) KBUILD_CFLAGS += $(cpu-as-y) diff --git a/arch/powerpc/boot/dts/ac14xx.dts b/arch/powerpc/boot/dts/ac14xx.dts index 83bcfd865167..0be5c4f3265d 100644 --- a/arch/powerpc/boot/dts/ac14xx.dts +++ b/arch/powerpc/boot/dts/ac14xx.dts @@ -176,12 +176,12 @@ clock-frequency = <400000>; at24@30 { - compatible = "at24,24c01"; + compatible = "atmel,24c01"; reg = <0x30>; }; at24@31 { - compatible = "at24,24c01"; + compatible = "atmel,24c01"; reg = <0x31>; }; @@ -191,42 +191,42 @@ }; at24@50 { - compatible = "at24,24c01"; + compatible = "atmel,24c01"; reg = <0x50>; }; at24@51 { - compatible = "at24,24c01"; + compatible = "atmel,24c01"; reg = <0x51>; }; at24@52 { - compatible = "at24,24c01"; + compatible = "atmel,24c01"; reg = <0x52>; }; at24@53 { - compatible = "at24,24c01"; + compatible = "atmel,24c01"; reg = <0x53>; }; at24@54 { - compatible = "at24,24c01"; + compatible = "atmel,24c01"; reg = <0x54>; }; at24@55 { - compatible = "at24,24c01"; + compatible = "atmel,24c01"; reg = <0x55>; }; at24@56 { - compatible = "at24,24c01"; + compatible = "atmel,24c01"; reg = <0x56>; }; at24@57 { - compatible = "at24,24c01"; + compatible = "atmel,24c01"; reg = <0x57>; }; diff --git a/arch/powerpc/boot/dts/fsl/kmcent2.dts b/arch/powerpc/boot/dts/fsl/kmcent2.dts index 5922c1ea0e96..3094df05f5ea 100644 --- a/arch/powerpc/boot/dts/fsl/kmcent2.dts +++ b/arch/powerpc/boot/dts/fsl/kmcent2.dts @@ -130,7 +130,7 @@ #size-cells = <0>; eeprom@54 { - compatible = "24c02"; + compatible = "atmel,24c02"; reg = <0x54>; pagesize = <2>; read-only; diff --git a/arch/powerpc/boot/dts/pdm360ng.dts b/arch/powerpc/boot/dts/pdm360ng.dts index 445b88114009..df1283b63d9b 100644 --- a/arch/powerpc/boot/dts/pdm360ng.dts +++ b/arch/powerpc/boot/dts/pdm360ng.dts @@ -98,7 +98,7 @@ fsl,preserve-clocking; eeprom@50 { - compatible = "at,24c01"; + compatible = "atmel,24c01"; reg = <0x50>; }; diff --git a/arch/powerpc/include/asm/book3s/32/pgalloc.h b/arch/powerpc/include/asm/book3s/32/pgalloc.h index 6a6673907e45..82e44b1a00ae 100644 --- a/arch/powerpc/include/asm/book3s/32/pgalloc.h +++ b/arch/powerpc/include/asm/book3s/32/pgalloc.h @@ -108,6 +108,7 @@ static inline void pgtable_free(void *table, unsigned index_size) } #define check_pgt_cache() do { } while (0) +#define get_hugepd_cache_index(x) (x) #ifdef CONFIG_SMP static inline void pgtable_free_tlb(struct mmu_gather *tlb, @@ -137,7 +138,6 @@ static inline void pgtable_free_tlb(struct mmu_gather *tlb, static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t table, unsigned long address) { - pgtable_page_dtor(table); pgtable_free_tlb(tlb, page_address(table), 0); } #endif /* _ASM_POWERPC_BOOK3S_32_PGALLOC_H */ diff --git a/arch/powerpc/include/asm/book3s/64/pgtable-4k.h b/arch/powerpc/include/asm/book3s/64/pgtable-4k.h index af5f2baac80f..a069dfcac9a9 100644 --- a/arch/powerpc/include/asm/book3s/64/pgtable-4k.h +++ b/arch/powerpc/include/asm/book3s/64/pgtable-4k.h @@ -49,6 +49,27 @@ static inline int hugepd_ok(hugepd_t hpd) } #define is_hugepd(hpd) (hugepd_ok(hpd)) +/* + * 16M and 16G huge page directory tables are allocated from slab cache + * + */ +#define H_16M_CACHE_INDEX (PAGE_SHIFT + H_PTE_INDEX_SIZE + H_PMD_INDEX_SIZE - 24) +#define H_16G_CACHE_INDEX \ + (PAGE_SHIFT + H_PTE_INDEX_SIZE + H_PMD_INDEX_SIZE + H_PUD_INDEX_SIZE - 34) + +static inline int get_hugepd_cache_index(int index) +{ + switch (index) { + case H_16M_CACHE_INDEX: + return HTLB_16M_INDEX; + case H_16G_CACHE_INDEX: + return HTLB_16G_INDEX; + default: + BUG(); + } + /* should not reach */ +} + #else /* !CONFIG_HUGETLB_PAGE */ static inline int pmd_huge(pmd_t pmd) { return 0; } static inline int pud_huge(pud_t pud) { return 0; } diff --git a/arch/powerpc/include/asm/book3s/64/pgtable-64k.h b/arch/powerpc/include/asm/book3s/64/pgtable-64k.h index fb4b3ba52339..d7ee249d6890 100644 --- a/arch/powerpc/include/asm/book3s/64/pgtable-64k.h +++ b/arch/powerpc/include/asm/book3s/64/pgtable-64k.h @@ -45,8 +45,17 @@ static inline int hugepd_ok(hugepd_t hpd) { return 0; } + #define is_hugepd(pdep) 0 +/* + * This should never get called + */ +static inline int get_hugepd_cache_index(int index) +{ + BUG(); +} + #else /* !CONFIG_HUGETLB_PAGE */ static inline int pmd_huge(pmd_t pmd) { return 0; } static inline int pud_huge(pud_t pud) { return 0; } diff --git a/arch/powerpc/include/asm/book3s/64/pgtable.h b/arch/powerpc/include/asm/book3s/64/pgtable.h index d334e6b9a46d..676118743a06 100644 --- a/arch/powerpc/include/asm/book3s/64/pgtable.h +++ b/arch/powerpc/include/asm/book3s/64/pgtable.h @@ -287,6 +287,11 @@ enum pgtable_index { PMD_INDEX, PUD_INDEX, PGD_INDEX, + /* + * Below are used with 4k page size and hugetlb + */ + HTLB_16M_INDEX, + HTLB_16G_INDEX, }; extern unsigned long __vmalloc_start; diff --git a/arch/powerpc/include/asm/cputable.h b/arch/powerpc/include/asm/cputable.h index f980f91cad8a..82816a2043b9 100644 --- a/arch/powerpc/include/asm/cputable.h +++ b/arch/powerpc/include/asm/cputable.h @@ -451,7 +451,6 @@ static inline void cpu_feature_keys_init(void) { } CPU_FTR_DBELL | CPU_FTR_HAS_PPR | CPU_FTR_DAWR | \ CPU_FTR_ARCH_207S | CPU_FTR_TM_COMP | CPU_FTR_PKEY) #define CPU_FTRS_POWER8E (CPU_FTRS_POWER8 | CPU_FTR_PMAO_BUG) -#define CPU_FTRS_POWER8_DD1 (CPU_FTRS_POWER8 & ~CPU_FTR_DBELL) #define CPU_FTRS_POWER9 (CPU_FTR_LWSYNC | \ CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_CTRL | CPU_FTR_ARCH_206 |\ CPU_FTR_MMCRA | CPU_FTR_SMT | \ @@ -485,15 +484,15 @@ static inline void cpu_feature_keys_init(void) { } #ifdef CONFIG_CPU_LITTLE_ENDIAN #define CPU_FTRS_POSSIBLE \ (CPU_FTRS_POWER7 | CPU_FTRS_POWER8E | CPU_FTRS_POWER8 | \ - CPU_FTRS_POWER8_DD1 | CPU_FTR_ALTIVEC_COMP | CPU_FTR_VSX_COMP | \ - CPU_FTRS_POWER9 | CPU_FTRS_POWER9_DD2_1 | CPU_FTRS_POWER9_DD2_2) + CPU_FTR_ALTIVEC_COMP | CPU_FTR_VSX_COMP | CPU_FTRS_POWER9 | \ + CPU_FTRS_POWER9_DD2_1 | CPU_FTRS_POWER9_DD2_2) #else #define CPU_FTRS_POSSIBLE \ (CPU_FTRS_PPC970 | CPU_FTRS_POWER5 | \ CPU_FTRS_POWER6 | CPU_FTRS_POWER7 | CPU_FTRS_POWER8E | \ - CPU_FTRS_POWER8 | CPU_FTRS_POWER8_DD1 | CPU_FTRS_CELL | \ - CPU_FTRS_PA6T | CPU_FTR_VSX_COMP | CPU_FTR_ALTIVEC_COMP | \ - CPU_FTRS_POWER9 | CPU_FTRS_POWER9_DD2_1 | CPU_FTRS_POWER9_DD2_2) + CPU_FTRS_POWER8 | CPU_FTRS_CELL | CPU_FTRS_PA6T | \ + CPU_FTR_VSX_COMP | CPU_FTR_ALTIVEC_COMP | CPU_FTRS_POWER9 | \ + CPU_FTRS_POWER9_DD2_1 | CPU_FTRS_POWER9_DD2_2) #endif /* CONFIG_CPU_LITTLE_ENDIAN */ #endif #else @@ -561,17 +560,15 @@ enum { #ifdef CONFIG_CPU_LITTLE_ENDIAN #define CPU_FTRS_ALWAYS \ (CPU_FTRS_POSSIBLE & ~CPU_FTR_HVMODE & CPU_FTRS_POWER7 & \ - CPU_FTRS_POWER8E & CPU_FTRS_POWER8 & CPU_FTRS_POWER8_DD1 & \ - CPU_FTRS_POWER9 & CPU_FTRS_POWER9_DD2_1 & \ - CPU_FTRS_DT_CPU_BASE) + CPU_FTRS_POWER8E & CPU_FTRS_POWER8 & CPU_FTRS_POWER9 & \ + CPU_FTRS_POWER9_DD2_1 & CPU_FTRS_DT_CPU_BASE) #else #define CPU_FTRS_ALWAYS \ (CPU_FTRS_PPC970 & CPU_FTRS_POWER5 & \ CPU_FTRS_POWER6 & CPU_FTRS_POWER7 & CPU_FTRS_CELL & \ CPU_FTRS_PA6T & CPU_FTRS_POWER8 & CPU_FTRS_POWER8E & \ - CPU_FTRS_POWER8_DD1 & ~CPU_FTR_HVMODE & CPU_FTRS_POSSIBLE & \ - CPU_FTRS_POWER9 & CPU_FTRS_POWER9_DD2_1 & \ - CPU_FTRS_DT_CPU_BASE) + ~CPU_FTR_HVMODE & CPU_FTRS_POSSIBLE & CPU_FTRS_POWER9 & \ + CPU_FTRS_POWER9_DD2_1 & CPU_FTRS_DT_CPU_BASE) #endif /* CONFIG_CPU_LITTLE_ENDIAN */ #endif #else diff --git a/arch/powerpc/include/asm/eeh.h b/arch/powerpc/include/asm/eeh.h index 677102baf3cd..219637ea69a1 100644 --- a/arch/powerpc/include/asm/eeh.h +++ b/arch/powerpc/include/asm/eeh.h @@ -36,13 +36,14 @@ struct pci_dn; #ifdef CONFIG_EEH /* EEH subsystem flags */ -#define EEH_ENABLED 0x01 /* EEH enabled */ -#define EEH_FORCE_DISABLED 0x02 /* EEH disabled */ -#define EEH_PROBE_MODE_DEV 0x04 /* From PCI device */ -#define EEH_PROBE_MODE_DEVTREE 0x08 /* From device tree */ -#define EEH_VALID_PE_ZERO 0x10 /* PE#0 is valid */ -#define EEH_ENABLE_IO_FOR_LOG 0x20 /* Enable IO for log */ -#define EEH_EARLY_DUMP_LOG 0x40 /* Dump log immediately */ +#define EEH_ENABLED 0x01 /* EEH enabled */ +#define EEH_FORCE_DISABLED 0x02 /* EEH disabled */ +#define EEH_PROBE_MODE_DEV 0x04 /* From PCI device */ +#define EEH_PROBE_MODE_DEVTREE 0x08 /* From device tree */ +#define EEH_VALID_PE_ZERO 0x10 /* PE#0 is valid */ +#define EEH_ENABLE_IO_FOR_LOG 0x20 /* Enable IO for log */ +#define EEH_EARLY_DUMP_LOG 0x40 /* Dump log immediately */ +#define EEH_POSTPONED_PROBE 0x80 /* Powernv may postpone device probe */ /* * Delay for PE reset, all in ms diff --git a/arch/powerpc/include/asm/nmi.h b/arch/powerpc/include/asm/nmi.h index 0f571e0ebca1..bd9ba8defd72 100644 --- a/arch/powerpc/include/asm/nmi.h +++ b/arch/powerpc/include/asm/nmi.h @@ -8,7 +8,7 @@ extern void arch_touch_nmi_watchdog(void); static inline void arch_touch_nmi_watchdog(void) {} #endif -#if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_STACKTRACE) +#if defined(CONFIG_NMI_IPI) && defined(CONFIG_STACKTRACE) extern void arch_trigger_cpumask_backtrace(const cpumask_t *mask, bool exclude_self); #define arch_trigger_cpumask_backtrace arch_trigger_cpumask_backtrace diff --git a/arch/powerpc/include/asm/nohash/32/pgalloc.h b/arch/powerpc/include/asm/nohash/32/pgalloc.h index 1707781d2f20..8825953c225b 100644 --- a/arch/powerpc/include/asm/nohash/32/pgalloc.h +++ b/arch/powerpc/include/asm/nohash/32/pgalloc.h @@ -109,6 +109,7 @@ static inline void pgtable_free(void *table, unsigned index_size) } #define check_pgt_cache() do { } while (0) +#define get_hugepd_cache_index(x) (x) #ifdef CONFIG_SMP static inline void pgtable_free_tlb(struct mmu_gather *tlb, @@ -139,7 +140,6 @@ static inline void __pte_free_tlb(struct mmu_gather *tlb, pgtable_t table, unsigned long address) { tlb_flush_pgtable(tlb, address); - pgtable_page_dtor(table); pgtable_free_tlb(tlb, page_address(table), 0); } #endif /* _ASM_POWERPC_PGALLOC_32_H */ diff --git a/arch/powerpc/include/asm/nohash/64/pgalloc.h b/arch/powerpc/include/asm/nohash/64/pgalloc.h index 0e693f322cb2..e2d62d033708 100644 --- a/arch/powerpc/include/asm/nohash/64/pgalloc.h +++ b/arch/powerpc/include/asm/nohash/64/pgalloc.h @@ -141,6 +141,7 @@ static inline void pgtable_free(void *table, int shift) } } +#define get_hugepd_cache_index(x) (x) #ifdef CONFIG_SMP static inline void pgtable_free_tlb(struct mmu_gather *tlb, void *table, int shift) { diff --git a/arch/powerpc/include/asm/pnv-pci.h b/arch/powerpc/include/asm/pnv-pci.h index d2d8c28db336..7f627e3f4da4 100644 --- a/arch/powerpc/include/asm/pnv-pci.h +++ b/arch/powerpc/include/asm/pnv-pci.h @@ -50,13 +50,6 @@ int pnv_cxl_alloc_hwirq_ranges(struct cxl_irq_ranges *irqs, struct pci_dev *dev, int num); void pnv_cxl_release_hwirq_ranges(struct cxl_irq_ranges *irqs, struct pci_dev *dev); - -/* Support for the cxl kernel api on the real PHB (instead of vPHB) */ -int pnv_cxl_enable_phb_kernel_api(struct pci_controller *hose, bool enable); -bool pnv_pci_on_cxl_phb(struct pci_dev *dev); -struct cxl_afu *pnv_cxl_phb_to_afu(struct pci_controller *hose); -void pnv_cxl_phb_set_peer_afu(struct pci_dev *dev, struct cxl_afu *afu); - #endif struct pnv_php_slot { diff --git a/arch/powerpc/include/asm/systbl.h b/arch/powerpc/include/asm/systbl.h index cfcf6a874cfa..01b5171ea189 100644 --- a/arch/powerpc/include/asm/systbl.h +++ b/arch/powerpc/include/asm/systbl.h @@ -393,3 +393,4 @@ SYSCALL(pkey_alloc) SYSCALL(pkey_free) SYSCALL(pkey_mprotect) SYSCALL(rseq) +COMPAT_SYS(io_pgetevents) diff --git a/arch/powerpc/include/asm/unistd.h b/arch/powerpc/include/asm/unistd.h index 1e9708632dce..c19379f0a32e 100644 --- a/arch/powerpc/include/asm/unistd.h +++ b/arch/powerpc/include/asm/unistd.h @@ -12,7 +12,7 @@ #include <uapi/asm/unistd.h> -#define NR_syscalls 388 +#define NR_syscalls 389 #define __NR__exit __NR_exit diff --git a/arch/powerpc/include/uapi/asm/unistd.h b/arch/powerpc/include/uapi/asm/unistd.h index ac5ba55066dd..985534d0b448 100644 --- a/arch/powerpc/include/uapi/asm/unistd.h +++ b/arch/powerpc/include/uapi/asm/unistd.h @@ -399,5 +399,6 @@ #define __NR_pkey_free 385 #define __NR_pkey_mprotect 386 #define __NR_rseq 387 +#define __NR_io_pgetevents 388 #endif /* _UAPI_ASM_POWERPC_UNISTD_H_ */ diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c index bc75a2908a7e..2da01340c84c 100644 --- a/arch/powerpc/kernel/cputable.c +++ b/arch/powerpc/kernel/cputable.c @@ -447,25 +447,6 @@ static struct cpu_spec __initdata cpu_specs[] = { .machine_check_early = __machine_check_early_realmode_p8, .platform = "power8", }, - { /* Power8 DD1: Does not support doorbell IPIs */ - .pvr_mask = 0xffffff00, - .pvr_value = 0x004d0100, - .cpu_name = "POWER8 (raw)", - .cpu_features = CPU_FTRS_POWER8_DD1, - .cpu_user_features = COMMON_USER_POWER8, - .cpu_user_features2 = COMMON_USER2_POWER8, - .mmu_features = MMU_FTRS_POWER8, - .icache_bsize = 128, - .dcache_bsize = 128, - .num_pmcs = 6, - .pmc_type = PPC_PMC_IBM, - .oprofile_cpu_type = "ppc64/power8", - .oprofile_type = PPC_OPROFILE_INVALID, - .cpu_setup = __setup_cpu_power8, - .cpu_restore = __restore_cpu_power8, - .machine_check_early = __machine_check_early_realmode_p8, - .platform = "power8", - }, { /* Power8 */ .pvr_mask = 0xffff0000, .pvr_value = 0x004d0000, diff --git a/arch/powerpc/kernel/dt_cpu_ftrs.c b/arch/powerpc/kernel/dt_cpu_ftrs.c index 98c373a4c1cf..f432054234a4 100644 --- a/arch/powerpc/kernel/dt_cpu_ftrs.c +++ b/arch/powerpc/kernel/dt_cpu_ftrs.c @@ -709,7 +709,8 @@ static __init void cpufeatures_cpu_quirks(void) cur_cpu_spec->cpu_features |= CPU_FTR_P9_TM_HV_ASSIST; cur_cpu_spec->cpu_features |= CPU_FTR_P9_TM_XER_SO_BUG; cur_cpu_spec->cpu_features |= CPU_FTR_POWER9_DD2_1; - } else /* DD2.1 and up have DD2_1 */ + } else if ((version & 0xffff0000) == 0x004e0000) + /* DD2.1 and up have DD2_1 */ cur_cpu_spec->cpu_features |= CPU_FTR_POWER9_DD2_1; if ((version & 0xffff0000) == 0x004e0000) { diff --git a/arch/powerpc/kernel/eeh.c b/arch/powerpc/kernel/eeh.c index 5746809cfaad..6ebba3e48b01 100644 --- a/arch/powerpc/kernel/eeh.c +++ b/arch/powerpc/kernel/eeh.c @@ -1087,7 +1087,7 @@ static int eeh_init(void) if (eeh_enabled()) pr_info("EEH: PCI Enhanced I/O Error Handling Enabled\n"); - else + else if (!eeh_has_flag(EEH_POSTPONED_PROBE)) pr_info("EEH: No capable adapters found\n"); return ret; diff --git a/arch/powerpc/kernel/machine_kexec.c b/arch/powerpc/kernel/machine_kexec.c index 936c7e2d421e..b53401334e81 100644 --- a/arch/powerpc/kernel/machine_kexec.c +++ b/arch/powerpc/kernel/machine_kexec.c @@ -188,7 +188,12 @@ void __init reserve_crashkernel(void) (unsigned long)(crashk_res.start >> 20), (unsigned long)(memblock_phys_mem_size() >> 20)); - memblock_reserve(crashk_res.start, crash_size); + if (!memblock_is_region_memory(crashk_res.start, crash_size) || + memblock_reserve(crashk_res.start, crash_size)) { + pr_err("Failed to reserve memory for crashkernel!\n"); + crashk_res.start = crashk_res.end = 0; + return; + } } int overlaps_crashkernel(unsigned long start, unsigned long size) diff --git a/arch/powerpc/kernel/mce_power.c b/arch/powerpc/kernel/mce_power.c index 38c5b4764bfe..d6756af6ec78 100644 --- a/arch/powerpc/kernel/mce_power.c +++ b/arch/powerpc/kernel/mce_power.c @@ -257,12 +257,12 @@ static const struct mce_derror_table mce_p7_derror_table[] = { { 0x00000400, true, MCE_ERROR_TYPE_TLB, MCE_TLB_ERROR_MULTIHIT, MCE_INITIATOR_CPU, MCE_SEV_ERROR_SYNC, }, +{ 0x00000080, true, + MCE_ERROR_TYPE_SLB, MCE_SLB_ERROR_MULTIHIT, /* Before PARITY */ + MCE_INITIATOR_CPU, MCE_SEV_ERROR_SYNC, }, { 0x00000100, true, MCE_ERROR_TYPE_SLB, MCE_SLB_ERROR_PARITY, MCE_INITIATOR_CPU, MCE_SEV_ERROR_SYNC, }, -{ 0x00000080, true, - MCE_ERROR_TYPE_SLB, MCE_SLB_ERROR_MULTIHIT, - MCE_INITIATOR_CPU, MCE_SEV_ERROR_SYNC, }, { 0x00000040, true, MCE_ERROR_TYPE_SLB, MCE_SLB_ERROR_INDETERMINATE, /* BOTH */ MCE_INITIATOR_CPU, MCE_SEV_ERROR_SYNC, }, @@ -290,12 +290,12 @@ static const struct mce_derror_table mce_p8_derror_table[] = { { 0x00000200, true, MCE_ERROR_TYPE_ERAT, MCE_ERAT_ERROR_MULTIHIT, /* SECONDARY ERAT */ MCE_INITIATOR_CPU, MCE_SEV_ERROR_SYNC, }, +{ 0x00000080, true, + MCE_ERROR_TYPE_SLB, MCE_SLB_ERROR_MULTIHIT, /* Before PARITY */ + MCE_INITIATOR_CPU, MCE_SEV_ERROR_SYNC, }, { 0x00000100, true, MCE_ERROR_TYPE_SLB, MCE_SLB_ERROR_PARITY, MCE_INITIATOR_CPU, MCE_SEV_ERROR_SYNC, }, -{ 0x00000080, true, - MCE_ERROR_TYPE_SLB, MCE_SLB_ERROR_MULTIHIT, - MCE_INITIATOR_CPU, MCE_SEV_ERROR_SYNC, }, { 0, false, 0, 0, 0, 0 } }; static const struct mce_derror_table mce_p9_derror_table[] = { @@ -320,12 +320,12 @@ static const struct mce_derror_table mce_p9_derror_table[] = { { 0x00000200, false, MCE_ERROR_TYPE_USER, MCE_USER_ERROR_TLBIE, MCE_INITIATOR_CPU, MCE_SEV_ERROR_SYNC, }, +{ 0x00000080, true, + MCE_ERROR_TYPE_SLB, MCE_SLB_ERROR_MULTIHIT, /* Before PARITY */ + MCE_INITIATOR_CPU, MCE_SEV_ERROR_SYNC, }, { 0x00000100, true, MCE_ERROR_TYPE_SLB, MCE_SLB_ERROR_PARITY, MCE_INITIATOR_CPU, MCE_SEV_ERROR_SYNC, }, -{ 0x00000080, true, - MCE_ERROR_TYPE_SLB, MCE_SLB_ERROR_MULTIHIT, - MCE_INITIATOR_CPU, MCE_SEV_ERROR_SYNC, }, { 0x00000040, true, MCE_ERROR_TYPE_RA, MCE_RA_ERROR_LOAD, MCE_INITIATOR_CPU, MCE_SEV_ERROR_SYNC, }, diff --git a/arch/powerpc/kernel/pci-common.c b/arch/powerpc/kernel/pci-common.c index fe9733ffffaa..f9352167e619 100644 --- a/arch/powerpc/kernel/pci-common.c +++ b/arch/powerpc/kernel/pci-common.c @@ -366,9 +366,6 @@ static int pci_read_irq_line(struct pci_dev *pci_dev) pr_debug("PCI: Try to map irq for %s...\n", pci_name(pci_dev)); -#ifdef DEBUG - memset(&oirq, 0xff, sizeof(oirq)); -#endif /* Try to get a mapping from the device-tree */ virq = of_irq_parse_and_map_pci(pci_dev, 0, 0); if (virq <= 0) { diff --git a/arch/powerpc/kernel/pci_32.c b/arch/powerpc/kernel/pci_32.c index 4f861055a852..d63b488d34d7 100644 --- a/arch/powerpc/kernel/pci_32.c +++ b/arch/powerpc/kernel/pci_32.c @@ -285,9 +285,6 @@ pci_bus_to_hose(int bus) * Note that the returned IO or memory base is a physical address */ -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wpragmas" -#pragma GCC diagnostic ignored "-Wattribute-alias" SYSCALL_DEFINE3(pciconfig_iobase, long, which, unsigned long, bus, unsigned long, devfn) { @@ -313,4 +310,3 @@ SYSCALL_DEFINE3(pciconfig_iobase, long, which, return result; } -#pragma GCC diagnostic pop diff --git a/arch/powerpc/kernel/pci_64.c b/arch/powerpc/kernel/pci_64.c index 812171c09f42..dff28f903512 100644 --- a/arch/powerpc/kernel/pci_64.c +++ b/arch/powerpc/kernel/pci_64.c @@ -203,9 +203,6 @@ void pcibios_setup_phb_io_space(struct pci_controller *hose) #define IOBASE_ISA_IO 3 #define IOBASE_ISA_MEM 4 -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wpragmas" -#pragma GCC diagnostic ignored "-Wattribute-alias" SYSCALL_DEFINE3(pciconfig_iobase, long, which, unsigned long, in_bus, unsigned long, in_devfn) { @@ -259,7 +256,6 @@ SYSCALL_DEFINE3(pciconfig_iobase, long, which, unsigned long, in_bus, return -EOPNOTSUPP; } -#pragma GCC diagnostic pop #ifdef CONFIG_NUMA int pcibus_to_node(struct pci_bus *bus) diff --git a/arch/powerpc/kernel/rtas.c b/arch/powerpc/kernel/rtas.c index 7fb9f83dcde8..8afd146bc9c7 100644 --- a/arch/powerpc/kernel/rtas.c +++ b/arch/powerpc/kernel/rtas.c @@ -1051,9 +1051,6 @@ struct pseries_errorlog *get_pseries_errorlog(struct rtas_error_log *log, } /* We assume to be passed big endian arguments */ -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wpragmas" -#pragma GCC diagnostic ignored "-Wattribute-alias" SYSCALL_DEFINE1(rtas, struct rtas_args __user *, uargs) { struct rtas_args args; @@ -1140,7 +1137,6 @@ SYSCALL_DEFINE1(rtas, struct rtas_args __user *, uargs) return 0; } -#pragma GCC diagnostic pop /* * Call early during boot, before mem init, to retrieve the RTAS diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c index 62b1a40d8957..40b44bb53a4e 100644 --- a/arch/powerpc/kernel/setup-common.c +++ b/arch/powerpc/kernel/setup-common.c @@ -701,11 +701,18 @@ static int ppc_panic_event(struct notifier_block *this, unsigned long event, void *ptr) { /* + * panic does a local_irq_disable, but we really + * want interrupts to be hard disabled. + */ + hard_irq_disable(); + + /* * If firmware-assisted dump has been registered then trigger * firmware-assisted dump and let firmware handle everything else. */ crash_fadump(NULL, ptr); - ppc_md.panic(ptr); /* May not return */ + if (ppc_md.panic) + ppc_md.panic(ptr); /* May not return */ return NOTIFY_DONE; } @@ -716,7 +723,8 @@ static struct notifier_block ppc_panic_block = { void __init setup_panic(void) { - if (!ppc_md.panic) + /* PPC64 always does a hard irq disable in its panic handler */ + if (!IS_ENABLED(CONFIG_PPC64) && !ppc_md.panic) return; atomic_notifier_chain_register(&panic_notifier_list, &ppc_panic_block); } diff --git a/arch/powerpc/kernel/setup_64.c b/arch/powerpc/kernel/setup_64.c index 7a7ce8ad455e..225bc5f91049 100644 --- a/arch/powerpc/kernel/setup_64.c +++ b/arch/powerpc/kernel/setup_64.c @@ -387,6 +387,14 @@ void early_setup_secondary(void) #endif /* CONFIG_SMP */ +void panic_smp_self_stop(void) +{ + hard_irq_disable(); + spin_begin(); + while (1) + spin_cpu_relax(); +} + #if defined(CONFIG_SMP) || defined(CONFIG_KEXEC_CORE) static bool use_spinloop(void) { diff --git a/arch/powerpc/kernel/signal.c b/arch/powerpc/kernel/signal.c index 17fe4339ba59..b3e8db376ecd 100644 --- a/arch/powerpc/kernel/signal.c +++ b/arch/powerpc/kernel/signal.c @@ -134,7 +134,7 @@ static void do_signal(struct task_struct *tsk) /* Re-enable the breakpoints for the signal stack */ thread_change_pc(tsk, tsk->thread.regs); - rseq_signal_deliver(tsk->thread.regs); + rseq_signal_deliver(&ksig, tsk->thread.regs); if (is32) { if (ksig.ka.sa.sa_flags & SA_SIGINFO) @@ -170,7 +170,7 @@ void do_notify_resume(struct pt_regs *regs, unsigned long thread_info_flags) if (thread_info_flags & _TIF_NOTIFY_RESUME) { clear_thread_flag(TIF_NOTIFY_RESUME); tracehook_notify_resume(regs); - rseq_handle_notify_resume(regs); + rseq_handle_notify_resume(NULL, regs); } user_enter(); diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c index 5eedbb282d42..e6474a45cef5 100644 --- a/arch/powerpc/kernel/signal_32.c +++ b/arch/powerpc/kernel/signal_32.c @@ -1038,9 +1038,6 @@ static int do_setcontext_tm(struct ucontext __user *ucp, } #endif -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wpragmas" -#pragma GCC diagnostic ignored "-Wattribute-alias" #ifdef CONFIG_PPC64 COMPAT_SYSCALL_DEFINE3(swapcontext, struct ucontext __user *, old_ctx, struct ucontext __user *, new_ctx, int, ctx_size) @@ -1134,7 +1131,6 @@ SYSCALL_DEFINE3(swapcontext, struct ucontext __user *, old_ctx, set_thread_flag(TIF_RESTOREALL); return 0; } -#pragma GCC diagnostic pop #ifdef CONFIG_PPC64 COMPAT_SYSCALL_DEFINE0(rt_sigreturn) @@ -1231,9 +1227,6 @@ SYSCALL_DEFINE0(rt_sigreturn) return 0; } -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wpragmas" -#pragma GCC diagnostic ignored "-Wattribute-alias" #ifdef CONFIG_PPC32 SYSCALL_DEFINE3(debug_setcontext, struct ucontext __user *, ctx, int, ndbg, struct sig_dbg_op __user *, dbg) @@ -1337,7 +1330,6 @@ SYSCALL_DEFINE3(debug_setcontext, struct ucontext __user *, ctx, return 0; } #endif -#pragma GCC diagnostic pop /* * OK, we're invoking a handler diff --git a/arch/powerpc/kernel/signal_64.c b/arch/powerpc/kernel/signal_64.c index d42b60020389..83d51bf586c7 100644 --- a/arch/powerpc/kernel/signal_64.c +++ b/arch/powerpc/kernel/signal_64.c @@ -625,9 +625,6 @@ static long setup_trampoline(unsigned int syscall, unsigned int __user *tramp) /* * Handle {get,set,swap}_context operations */ -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wpragmas" -#pragma GCC diagnostic ignored "-Wattribute-alias" SYSCALL_DEFINE3(swapcontext, struct ucontext __user *, old_ctx, struct ucontext __user *, new_ctx, long, ctx_size) { @@ -693,7 +690,6 @@ SYSCALL_DEFINE3(swapcontext, struct ucontext __user *, old_ctx, set_thread_flag(TIF_RESTOREALL); return 0; } -#pragma GCC diagnostic pop /* diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c index 5eadfffabe35..4794d6b4f4d2 100644 --- a/arch/powerpc/kernel/smp.c +++ b/arch/powerpc/kernel/smp.c @@ -600,9 +600,6 @@ static void nmi_stop_this_cpu(struct pt_regs *regs) nmi_ipi_busy_count--; nmi_ipi_unlock(); - /* Remove this CPU */ - set_cpu_online(smp_processor_id(), false); - spin_begin(); while (1) spin_cpu_relax(); @@ -617,9 +614,6 @@ void smp_send_stop(void) static void stop_this_cpu(void *dummy) { - /* Remove this CPU */ - set_cpu_online(smp_processor_id(), false); - hard_irq_disable(); spin_begin(); while (1) diff --git a/arch/powerpc/kernel/stacktrace.c b/arch/powerpc/kernel/stacktrace.c index 07e97f289c52..e2c50b55138f 100644 --- a/arch/powerpc/kernel/stacktrace.c +++ b/arch/powerpc/kernel/stacktrace.c @@ -196,7 +196,7 @@ save_stack_trace_tsk_reliable(struct task_struct *tsk, EXPORT_SYMBOL_GPL(save_stack_trace_tsk_reliable); #endif /* CONFIG_HAVE_RELIABLE_STACKTRACE */ -#ifdef CONFIG_PPC_BOOK3S_64 +#if defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_NMI_IPI) static void handle_backtrace_ipi(struct pt_regs *regs) { nmi_cpu_backtrace(regs); @@ -242,4 +242,4 @@ void arch_trigger_cpumask_backtrace(const cpumask_t *mask, bool exclude_self) { nmi_trigger_cpumask_backtrace(mask, exclude_self, raise_backtrace_ipi); } -#endif /* CONFIG_PPC64 */ +#endif /* defined(CONFIG_PPC_BOOK3S_64) && defined(CONFIG_NMI_IPI) */ diff --git a/arch/powerpc/kernel/syscalls.c b/arch/powerpc/kernel/syscalls.c index 083fa06962fd..466216506eb2 100644 --- a/arch/powerpc/kernel/syscalls.c +++ b/arch/powerpc/kernel/syscalls.c @@ -62,9 +62,6 @@ out: return ret; } -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wpragmas" -#pragma GCC diagnostic ignored "-Wattribute-alias" SYSCALL_DEFINE6(mmap2, unsigned long, addr, size_t, len, unsigned long, prot, unsigned long, flags, unsigned long, fd, unsigned long, pgoff) @@ -78,7 +75,6 @@ SYSCALL_DEFINE6(mmap, unsigned long, addr, size_t, len, { return do_mmap2(addr, len, prot, flags, fd, offset, PAGE_SHIFT); } -#pragma GCC diagnostic pop #ifdef CONFIG_PPC32 /* diff --git a/arch/powerpc/mm/hugetlbpage.c b/arch/powerpc/mm/hugetlbpage.c index ec7538a802f9..f425b5b37d58 100644 --- a/arch/powerpc/mm/hugetlbpage.c +++ b/arch/powerpc/mm/hugetlbpage.c @@ -337,7 +337,8 @@ static void free_hugepd_range(struct mmu_gather *tlb, hugepd_t *hpdp, int pdshif if (shift >= pdshift) hugepd_free(tlb, hugepte); else - pgtable_free_tlb(tlb, hugepte, pdshift - shift); + pgtable_free_tlb(tlb, hugepte, + get_hugepd_cache_index(pdshift - shift)); } static void hugetlb_free_pmd_range(struct mmu_gather *tlb, pud_t *pud, diff --git a/arch/powerpc/mm/pgtable-book3s64.c b/arch/powerpc/mm/pgtable-book3s64.c index c1f4ca45c93a..4afbfbb64bfd 100644 --- a/arch/powerpc/mm/pgtable-book3s64.c +++ b/arch/powerpc/mm/pgtable-book3s64.c @@ -409,6 +409,18 @@ static inline void pgtable_free(void *table, int index) case PUD_INDEX: kmem_cache_free(PGT_CACHE(PUD_CACHE_INDEX), table); break; +#if defined(CONFIG_PPC_4K_PAGES) && defined(CONFIG_HUGETLB_PAGE) + /* 16M hugepd directory at pud level */ + case HTLB_16M_INDEX: + BUILD_BUG_ON(H_16M_CACHE_INDEX <= 0); + kmem_cache_free(PGT_CACHE(H_16M_CACHE_INDEX), table); + break; + /* 16G hugepd directory at the pgd level */ + case HTLB_16G_INDEX: + BUILD_BUG_ON(H_16G_CACHE_INDEX <= 0); + kmem_cache_free(PGT_CACHE(H_16G_CACHE_INDEX), table); + break; +#endif /* We don't free pgd table via RCU callback */ default: BUG(); diff --git a/arch/powerpc/mm/subpage-prot.c b/arch/powerpc/mm/subpage-prot.c index 75cb646a79c3..9d16ee251fc0 100644 --- a/arch/powerpc/mm/subpage-prot.c +++ b/arch/powerpc/mm/subpage-prot.c @@ -186,9 +186,6 @@ static void subpage_mark_vma_nohuge(struct mm_struct *mm, unsigned long addr, * in a 2-bit field won't allow writes to a page that is otherwise * write-protected. */ -#pragma GCC diagnostic push -#pragma GCC diagnostic ignored "-Wpragmas" -#pragma GCC diagnostic ignored "-Wattribute-alias" SYSCALL_DEFINE3(subpage_prot, unsigned long, addr, unsigned long, len, u32 __user *, map) { @@ -272,4 +269,3 @@ SYSCALL_DEFINE3(subpage_prot, unsigned long, addr, up_write(&mm->mmap_sem); return err; } -#pragma GCC diagnostic pop diff --git a/arch/powerpc/mm/tlb-radix.c b/arch/powerpc/mm/tlb-radix.c index 902767b8a9c1..fef3e1eb3a19 100644 --- a/arch/powerpc/mm/tlb-radix.c +++ b/arch/powerpc/mm/tlb-radix.c @@ -689,22 +689,17 @@ EXPORT_SYMBOL(radix__flush_tlb_kernel_range); static unsigned long tlb_single_page_flush_ceiling __read_mostly = 33; static unsigned long tlb_local_single_page_flush_ceiling __read_mostly = POWER9_TLB_SETS_RADIX * 2; -void radix__flush_tlb_range(struct vm_area_struct *vma, unsigned long start, - unsigned long end) +static inline void __radix__flush_tlb_range(struct mm_struct *mm, + unsigned long start, unsigned long end, + bool flush_all_sizes) { - struct mm_struct *mm = vma->vm_mm; unsigned long pid; unsigned int page_shift = mmu_psize_defs[mmu_virtual_psize].shift; unsigned long page_size = 1UL << page_shift; unsigned long nr_pages = (end - start) >> page_shift; bool local, full; -#ifdef CONFIG_HUGETLB_PAGE - if (is_vm_hugetlb_page(vma)) - return radix__flush_hugetlb_tlb_range(vma, start, end); -#endif - pid = mm->context.id; if (unlikely(pid == MMU_NO_CONTEXT)) return; @@ -738,37 +733,64 @@ is_local: _tlbie_pid(pid, RIC_FLUSH_TLB); } } else { - bool hflush = false; + bool hflush = flush_all_sizes; + bool gflush = flush_all_sizes; unsigned long hstart, hend; + unsigned long gstart, gend; -#ifdef CONFIG_TRANSPARENT_HUGEPAGE - hstart = (start + HPAGE_PMD_SIZE - 1) >> HPAGE_PMD_SHIFT; - hend = end >> HPAGE_PMD_SHIFT; - if (hstart < hend) { - hstart <<= HPAGE_PMD_SHIFT; - hend <<= HPAGE_PMD_SHIFT; + if (IS_ENABLED(CONFIG_TRANSPARENT_HUGEPAGE)) hflush = true; + + if (hflush) { + hstart = (start + PMD_SIZE - 1) & PMD_MASK; + hend = end & PMD_MASK; + if (hstart == hend) + hflush = false; + } + + if (gflush) { + gstart = (start + PUD_SIZE - 1) & PUD_MASK; + gend = end & PUD_MASK; + if (gstart == gend) + gflush = false; } -#endif asm volatile("ptesync": : :"memory"); if (local) { __tlbiel_va_range(start, end, pid, page_size, mmu_virtual_psize); if (hflush) __tlbiel_va_range(hstart, hend, pid, - HPAGE_PMD_SIZE, MMU_PAGE_2M); + PMD_SIZE, MMU_PAGE_2M); + if (gflush) + __tlbiel_va_range(gstart, gend, pid, + PUD_SIZE, MMU_PAGE_1G); asm volatile("ptesync": : :"memory"); } else { __tlbie_va_range(start, end, pid, page_size, mmu_virtual_psize); if (hflush) __tlbie_va_range(hstart, hend, pid, - HPAGE_PMD_SIZE, MMU_PAGE_2M); + PMD_SIZE, MMU_PAGE_2M); + if (gflush) + __tlbie_va_range(gstart, gend, pid, + PUD_SIZE, MMU_PAGE_1G); fixup_tlbie(); asm volatile("eieio; tlbsync; ptesync": : :"memory"); } } preempt_enable(); } + +void radix__flush_tlb_range(struct vm_area_struct *vma, unsigned long start, + unsigned long end) + +{ +#ifdef CONFIG_HUGETLB_PAGE + if (is_vm_hugetlb_page(vma)) + return radix__flush_hugetlb_tlb_range(vma, start, end); +#endif + + __radix__flush_tlb_range(vma->vm_mm, start, end, false); +} EXPORT_SYMBOL(radix__flush_tlb_range); static int radix_get_mmu_psize(int page_size) @@ -837,6 +859,8 @@ void radix__tlb_flush(struct mmu_gather *tlb) int psize = 0; struct mm_struct *mm = tlb->mm; int page_size = tlb->page_size; + unsigned long start = tlb->start; + unsigned long end = tlb->end; /* * if page size is not something we understand, do a full mm flush @@ -847,15 +871,45 @@ void radix__tlb_flush(struct mmu_gather *tlb) */ if (tlb->fullmm) { __flush_all_mm(mm, true); +#if defined(CONFIG_TRANSPARENT_HUGEPAGE) || defined(CONFIG_HUGETLB_PAGE) + } else if (mm_tlb_flush_nested(mm)) { + /* + * If there is a concurrent invalidation that is clearing ptes, + * then it's possible this invalidation will miss one of those + * cleared ptes and miss flushing the TLB. If this invalidate + * returns before the other one flushes TLBs, that can result + * in it returning while there are still valid TLBs inside the + * range to be invalidated. + * + * See mm/memory.c:tlb_finish_mmu() for more details. + * + * The solution to this is ensure the entire range is always + * flushed here. The problem for powerpc is that the flushes + * are page size specific, so this "forced flush" would not + * do the right thing if there are a mix of page sizes in + * the range to be invalidated. So use __flush_tlb_range + * which invalidates all possible page sizes in the range. + * + * PWC flush probably is not be required because the core code + * shouldn't free page tables in this path, but accounting + * for the possibility makes us a bit more robust. + * + * need_flush_all is an uncommon case because page table + * teardown should be done with exclusive locks held (but + * after locks are dropped another invalidate could come + * in), it could be optimized further if necessary. + */ + if (!tlb->need_flush_all) + __radix__flush_tlb_range(mm, start, end, true); + else + radix__flush_all_mm(mm); +#endif } else if ( (psize = radix_get_mmu_psize(page_size)) == -1) { if (!tlb->need_flush_all) radix__flush_tlb_mm(mm); else radix__flush_all_mm(mm); } else { - unsigned long start = tlb->start; - unsigned long end = tlb->end; - if (!tlb->need_flush_all) radix__flush_tlb_range_psize(mm, start, end, psize); else @@ -1025,6 +1079,8 @@ extern void radix_kvm_prefetch_workaround(struct mm_struct *mm) for (; sib <= cpu_last_thread_sibling(cpu) && !flush; sib++) { if (sib == cpu) continue; + if (!cpu_possible(sib)) + continue; if (paca_ptrs[sib]->kvm_hstate.kvm_vcpu) flush = true; } diff --git a/arch/powerpc/platforms/52xx/mpc52xx_pm.c b/arch/powerpc/platforms/52xx/mpc52xx_pm.c index 31d3515672f3..b1d208ded981 100644 --- a/arch/powerpc/platforms/52xx/mpc52xx_pm.c +++ b/arch/powerpc/platforms/52xx/mpc52xx_pm.c @@ -117,7 +117,10 @@ int mpc52xx_pm_enter(suspend_state_t state) u32 intr_main_mask; void __iomem * irq_0x500 = (void __iomem *)CONFIG_KERNEL_START + 0x500; unsigned long irq_0x500_stop = (unsigned long)irq_0x500 + mpc52xx_ds_cached_size; - char saved_0x500[mpc52xx_ds_cached_size]; + char saved_0x500[0x600-0x500]; + + if (WARN_ON(mpc52xx_ds_cached_size > sizeof(saved_0x500))) + return -ENOMEM; /* disable all interrupts in PIC */ intr_main_mask = in_be32(&intr->main_mask); diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype index e6a1de521319..e93d6186de6e 100644 --- a/arch/powerpc/platforms/Kconfig.cputype +++ b/arch/powerpc/platforms/Kconfig.cputype @@ -74,7 +74,6 @@ config PPC_BOOK3S_64 select HAVE_ARCH_TRANSPARENT_HUGEPAGE select ARCH_SUPPORTS_NUMA_BALANCING select IRQ_WORK - select HAVE_KERNEL_XZ config PPC_BOOK3E_64 bool "Embedded processors" diff --git a/arch/powerpc/platforms/embedded6xx/wii.c b/arch/powerpc/platforms/embedded6xx/wii.c index 8bb46dcbebd8..403523c061ba 100644 --- a/arch/powerpc/platforms/embedded6xx/wii.c +++ b/arch/powerpc/platforms/embedded6xx/wii.c @@ -67,16 +67,6 @@ void __init wii_memory_fixups(void) { struct memblock_region *p = memblock.memory.regions; - /* - * This is part of a workaround to allow the use of two - * discontinuous RAM ranges on the Wii, even if this is - * currently unsupported on 32-bit PowerPC Linux. - * - * We coalesce the two memory ranges of the Wii into a - * single range, then create a reservation for the "hole" - * between both ranges. - */ - BUG_ON(memblock.memory.cnt != 2); BUG_ON(!page_aligned(p[0].base) || !page_aligned(p[1].base)); diff --git a/arch/powerpc/platforms/powermac/time.c b/arch/powerpc/platforms/powermac/time.c index 7c968e46736f..12e6e4d30602 100644 --- a/arch/powerpc/platforms/powermac/time.c +++ b/arch/powerpc/platforms/powermac/time.c @@ -42,7 +42,11 @@ #define DBG(x...) #endif -/* Apparently the RTC stores seconds since 1 Jan 1904 */ +/* + * Offset between Unix time (1970-based) and Mac time (1904-based). Cuda and PMU + * times wrap in 2040. If we need to handle later times, the read_time functions + * need to be changed to interpret wrapped times as post-2040. + */ #define RTC_OFFSET 2082844800 /* @@ -97,8 +101,11 @@ static time64_t cuda_get_time(void) if (req.reply_len != 7) printk(KERN_ERR "cuda_get_time: got %d byte reply\n", req.reply_len); - now = (req.reply[3] << 24) + (req.reply[4] << 16) - + (req.reply[5] << 8) + req.reply[6]; + now = (u32)((req.reply[3] << 24) + (req.reply[4] << 16) + + (req.reply[5] << 8) + req.reply[6]); + /* it's either after year 2040, or the RTC has gone backwards */ + WARN_ON(now < RTC_OFFSET); + return now - RTC_OFFSET; } @@ -106,10 +113,10 @@ static time64_t cuda_get_time(void) static int cuda_set_rtc_time(struct rtc_time *tm) { - time64_t nowtime; + u32 nowtime; struct adb_request req; - nowtime = rtc_tm_to_time64(tm) + RTC_OFFSET; + nowtime = lower_32_bits(rtc_tm_to_time64(tm) + RTC_OFFSET); if (cuda_request(&req, NULL, 6, CUDA_PACKET, CUDA_SET_TIME, nowtime >> 24, nowtime >> 16, nowtime >> 8, nowtime) < 0) @@ -140,8 +147,12 @@ static time64_t pmu_get_time(void) if (req.reply_len != 4) printk(KERN_ERR "pmu_get_time: got %d byte reply from PMU\n", req.reply_len); - now = (req.reply[0] << 24) + (req.reply[1] << 16) - + (req.reply[2] << 8) + req.reply[3]; + now = (u32)((req.reply[0] << 24) + (req.reply[1] << 16) + + (req.reply[2] << 8) + req.reply[3]); + + /* it's either after year 2040, or the RTC has gone backwards */ + WARN_ON(now < RTC_OFFSET); + return now - RTC_OFFSET; } @@ -149,10 +160,10 @@ static time64_t pmu_get_time(void) static int pmu_set_rtc_time(struct rtc_time *tm) { - time64_t nowtime; + u32 nowtime; struct adb_request req; - nowtime = rtc_tm_to_time64(tm) + RTC_OFFSET; + nowtime = lower_32_bits(rtc_tm_to_time64(tm) + RTC_OFFSET); if (pmu_request(&req, NULL, 5, PMU_SET_RTC, nowtime >> 24, nowtime >> 16, nowtime >> 8, nowtime) < 0) return -ENXIO; diff --git a/arch/powerpc/platforms/powernv/eeh-powernv.c b/arch/powerpc/platforms/powernv/eeh-powernv.c index ddfc3544d285..3c1beae29f2d 100644 --- a/arch/powerpc/platforms/powernv/eeh-powernv.c +++ b/arch/powerpc/platforms/powernv/eeh-powernv.c @@ -223,6 +223,14 @@ int pnv_eeh_post_init(void) eeh_probe_devices(); eeh_addr_cache_build(); + if (eeh_has_flag(EEH_POSTPONED_PROBE)) { + eeh_clear_flag(EEH_POSTPONED_PROBE); + if (eeh_enabled()) + pr_info("EEH: PCI Enhanced I/O Error Handling Enabled\n"); + else + pr_info("EEH: No capable adapters found\n"); + } + /* Register OPAL event notifier */ eeh_event_irq = opal_event_request(ilog2(OPAL_EVENT_PCI_ERROR)); if (eeh_event_irq < 0) { @@ -384,8 +392,10 @@ static void *pnv_eeh_probe(struct pci_dn *pdn, void *data) return NULL; /* Skip if we haven't probed yet */ - if (phb->ioda.pe_rmap[config_addr] == IODA_INVALID_PE) + if (phb->ioda.pe_rmap[config_addr] == IODA_INVALID_PE) { + eeh_add_flag(EEH_POSTPONED_PROBE); return NULL; + } /* Initialize eeh device */ edev->class_code = pdn->class_code; diff --git a/arch/powerpc/platforms/powernv/memtrace.c b/arch/powerpc/platforms/powernv/memtrace.c index b99283df8584..f73101119eba 100644 --- a/arch/powerpc/platforms/powernv/memtrace.c +++ b/arch/powerpc/platforms/powernv/memtrace.c @@ -47,38 +47,9 @@ static ssize_t memtrace_read(struct file *filp, char __user *ubuf, return simple_read_from_buffer(ubuf, count, ppos, ent->mem, ent->size); } -static bool valid_memtrace_range(struct memtrace_entry *dev, - unsigned long start, unsigned long size) -{ - if ((start >= dev->start) && - ((start + size) <= (dev->start + dev->size))) - return true; - - return false; -} - -static int memtrace_mmap(struct file *filp, struct vm_area_struct *vma) -{ - unsigned long size = vma->vm_end - vma->vm_start; - struct memtrace_entry *dev = filp->private_data; - - if (!valid_memtrace_range(dev, vma->vm_pgoff << PAGE_SHIFT, size)) - return -EINVAL; - - vma->vm_page_prot = pgprot_noncached(vma->vm_page_prot); - - if (remap_pfn_range(vma, vma->vm_start, - vma->vm_pgoff + (dev->start >> PAGE_SHIFT), - size, vma->vm_page_prot)) - return -EAGAIN; - - return 0; -} - static const struct file_operations memtrace_fops = { .llseek = default_llseek, .read = memtrace_read, - .mmap = memtrace_mmap, .open = simple_open, }; diff --git a/arch/powerpc/platforms/powernv/pci-cxl.c b/arch/powerpc/platforms/powernv/pci-cxl.c index cee003de63af..1b18111453d7 100644 --- a/arch/powerpc/platforms/powernv/pci-cxl.c +++ b/arch/powerpc/platforms/powernv/pci-cxl.c @@ -8,11 +8,8 @@ */ #include <linux/module.h> -#include <linux/msi.h> -#include <asm/pci-bridge.h> #include <asm/pnv-pci.h> #include <asm/opal.h> -#include <misc/cxl.h> #include "pci.h" @@ -179,199 +176,3 @@ static inline int get_cxl_module(void) #else static inline int get_cxl_module(void) { return 0; } #endif - -/* - * Sets flags and switches the controller ops to enable the cxl kernel api. - * Originally the cxl kernel API operated on a virtual PHB, but certain cards - * such as the Mellanox CX4 use a peer model instead and for these cards the - * cxl kernel api will operate on the real PHB. - */ -int pnv_cxl_enable_phb_kernel_api(struct pci_controller *hose, bool enable) -{ - struct pnv_phb *phb = hose->private_data; - int rc; - - if (!enable) { - /* - * Once cxl mode is enabled on the PHB, there is currently no - * known safe method to disable it again, and trying risks a - * checkstop. If we can find a way to safely disable cxl mode - * in the future we can revisit this, but for now the only sane - * thing to do is to refuse to disable cxl mode: - */ - return -EPERM; - } - - /* - * Hold a reference to the cxl module since several PHB operations now - * depend on it, and it would be insane to allow it to be removed so - * long as we are in this mode (and since we can't safely disable this - * mode once enabled...). - */ - rc = get_cxl_module(); - if (rc) - return rc; - - phb->flags |= PNV_PHB_FLAG_CXL; - hose->controller_ops = pnv_cxl_cx4_ioda_controller_ops; - - return 0; -} -EXPORT_SYMBOL_GPL(pnv_cxl_enable_phb_kernel_api); - -bool pnv_pci_on_cxl_phb(struct pci_dev *dev) -{ - struct pci_controller *hose = pci_bus_to_host(dev->bus); - struct pnv_phb *phb = hose->private_data; - - return !!(phb->flags & PNV_PHB_FLAG_CXL); -} -EXPORT_SYMBOL_GPL(pnv_pci_on_cxl_phb); - -struct cxl_afu *pnv_cxl_phb_to_afu(struct pci_controller *hose) -{ - struct pnv_phb *phb = hose->private_data; - - return (struct cxl_afu *)phb->cxl_afu; -} -EXPORT_SYMBOL_GPL(pnv_cxl_phb_to_afu); - -void pnv_cxl_phb_set_peer_afu(struct pci_dev *dev, struct cxl_afu *afu) -{ - struct pci_controller *hose = pci_bus_to_host(dev->bus); - struct pnv_phb *phb = hose->private_data; - - phb->cxl_afu = afu; -} -EXPORT_SYMBOL_GPL(pnv_cxl_phb_set_peer_afu); - -/* - * In the peer cxl model, the XSL/PSL is physical function 0, and will be used - * by other functions on the device for memory access and interrupts. When the - * other functions are enabled we explicitly take a reference on the cxl - * function since they will use it, and allocate a default context associated - * with that function just like the vPHB model of the cxl kernel API. - */ -bool pnv_cxl_enable_device_hook(struct pci_dev *dev) -{ - struct pci_controller *hose = pci_bus_to_host(dev->bus); - struct pnv_phb *phb = hose->private_data; - struct cxl_afu *afu = phb->cxl_afu; - - if (!pnv_pci_enable_device_hook(dev)) - return false; - - - /* No special handling for the cxl function, which is always PF 0 */ - if (PCI_FUNC(dev->devfn) == 0) - return true; - - if (!afu) { - dev_WARN(&dev->dev, "Attempted to enable function > 0 on CXL PHB without a peer AFU\n"); - return false; - } - - dev_info(&dev->dev, "Enabling function on CXL enabled PHB with peer AFU\n"); - - /* Make sure the peer AFU can't go away while this device is active */ - cxl_afu_get(afu); - - return cxl_pci_associate_default_context(dev, afu); -} - -void pnv_cxl_disable_device(struct pci_dev *dev) -{ - struct pci_controller *hose = pci_bus_to_host(dev->bus); - struct pnv_phb *phb = hose->private_data; - struct cxl_afu *afu = phb->cxl_afu; - - /* No special handling for cxl function: */ - if (PCI_FUNC(dev->devfn) == 0) - return; - - cxl_pci_disable_device(dev); - cxl_afu_put(afu); -} - -/* - * This is a special version of pnv_setup_msi_irqs for cards in cxl mode. This - * function handles setting up the IVTE entries for the XSL to use. - * - * We are currently not filling out the MSIX table, since the only currently - * supported adapter (CX4) uses a custom MSIX table format in cxl mode and it - * is up to their driver to fill that out. In the future we may fill out the - * MSIX table (and change the IVTE entries to be an index to the MSIX table) - * for adapters implementing the Full MSI-X mode described in the CAIA. - */ -int pnv_cxl_cx4_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type) -{ - struct pci_controller *hose = pci_bus_to_host(pdev->bus); - struct pnv_phb *phb = hose->private_data; - struct msi_desc *entry; - struct cxl_context *ctx = NULL; - unsigned int virq; - int hwirq; - int afu_irq = 0; - int rc; - - if (WARN_ON(!phb) || !phb->msi_bmp.bitmap) - return -ENODEV; - - if (pdev->no_64bit_msi && !phb->msi32_support) - return -ENODEV; - - rc = cxl_cx4_setup_msi_irqs(pdev, nvec, type); - if (rc) - return rc; - - for_each_pci_msi_entry(entry, pdev) { - if (!entry->msi_attrib.is_64 && !phb->msi32_support) { - pr_warn("%s: Supports only 64-bit MSIs\n", - pci_name(pdev)); - return -ENXIO; - } - - hwirq = cxl_next_msi_hwirq(pdev, &ctx, &afu_irq); - if (WARN_ON(hwirq <= 0)) - return (hwirq ? hwirq : -ENOMEM); - - virq = irq_create_mapping(NULL, hwirq); - if (!virq) { - pr_warn("%s: Failed to map cxl mode MSI to linux irq\n", - pci_name(pdev)); - return -ENOMEM; - } - - rc = pnv_cxl_ioda_msi_setup(pdev, hwirq, virq); - if (rc) { - pr_warn("%s: Failed to setup cxl mode MSI\n", pci_name(pdev)); - irq_dispose_mapping(virq); - return rc; - } - - irq_set_msi_desc(virq, entry); - } - - return 0; -} - -void pnv_cxl_cx4_teardown_msi_irqs(struct pci_dev *pdev) -{ - struct pci_controller *hose = pci_bus_to_host(pdev->bus); - struct pnv_phb *phb = hose->private_data; - struct msi_desc *entry; - irq_hw_number_t hwirq; - - if (WARN_ON(!phb)) - return; - - for_each_pci_msi_entry(entry, pdev) { - if (!entry->irq) - continue; - hwirq = virq_to_hw(entry->irq); - irq_set_msi_desc(entry->irq, NULL); - irq_dispose_mapping(entry->irq); - } - - cxl_cx4_teardown_msi_irqs(pdev); -} diff --git a/arch/powerpc/platforms/powernv/pci-ioda.c b/arch/powerpc/platforms/powernv/pci-ioda.c index b4475f71a0b4..cb5d8ee23acb 100644 --- a/arch/powerpc/platforms/powernv/pci-ioda.c +++ b/arch/powerpc/platforms/powernv/pci-ioda.c @@ -2785,7 +2785,7 @@ static unsigned long pnv_ioda_parse_tce_sizes(struct pnv_phb *phb) /* Add 16M for POWER8 by default */ if (cpu_has_feature(CPU_FTR_ARCH_207S) && !cpu_has_feature(CPU_FTR_ARCH_300)) - mask |= SZ_16M; + mask |= SZ_16M | SZ_256M; return mask; } @@ -3435,7 +3435,7 @@ static resource_size_t pnv_pci_iov_resource_alignment(struct pci_dev *pdev, /* Prevent enabling devices for which we couldn't properly * assign a PE */ -bool pnv_pci_enable_device_hook(struct pci_dev *dev) +static bool pnv_pci_enable_device_hook(struct pci_dev *dev) { struct pci_controller *hose = pci_bus_to_host(dev->bus); struct pnv_phb *phb = hose->private_data; @@ -3703,26 +3703,6 @@ static const struct pci_controller_ops pnv_npu_ocapi_ioda_controller_ops = { .shutdown = pnv_pci_ioda_shutdown, }; -#ifdef CONFIG_CXL_BASE -const struct pci_controller_ops pnv_cxl_cx4_ioda_controller_ops = { - .dma_dev_setup = pnv_pci_dma_dev_setup, - .dma_bus_setup = pnv_pci_dma_bus_setup, -#ifdef CONFIG_PCI_MSI - .setup_msi_irqs = pnv_cxl_cx4_setup_msi_irqs, - .teardown_msi_irqs = pnv_cxl_cx4_teardown_msi_irqs, -#endif - .enable_device_hook = pnv_cxl_enable_device_hook, - .disable_device = pnv_cxl_disable_device, - .release_device = pnv_pci_release_device, - .window_alignment = pnv_pci_window_alignment, - .setup_bridge = pnv_pci_setup_bridge, - .reset_secondary_bus = pnv_pci_reset_secondary_bus, - .dma_set_mask = pnv_pci_ioda_dma_set_mask, - .dma_get_required_mask = pnv_pci_ioda_dma_get_required_mask, - .shutdown = pnv_pci_ioda_shutdown, -}; -#endif - static void __init pnv_pci_init_ioda_phb(struct device_node *np, u64 hub_id, int ioda_type) { diff --git a/arch/powerpc/platforms/powernv/pci.h b/arch/powerpc/platforms/powernv/pci.h index 0020937fc694..8b37b28e3831 100644 --- a/arch/powerpc/platforms/powernv/pci.h +++ b/arch/powerpc/platforms/powernv/pci.h @@ -88,7 +88,6 @@ struct pnv_ioda_pe { }; #define PNV_PHB_FLAG_EEH (1 << 0) -#define PNV_PHB_FLAG_CXL (1 << 1) /* Real PHB supporting the cxl kernel API */ struct pnv_phb { struct pci_controller *hose; @@ -194,9 +193,6 @@ struct pnv_phb { bool nmmu_flush; } npu; -#ifdef CONFIG_CXL_BASE - struct cxl_afu *cxl_afu; -#endif int p2p_target_count; }; @@ -223,7 +219,6 @@ extern int pnv_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type); extern void pnv_teardown_msi_irqs(struct pci_dev *pdev); extern struct pnv_ioda_pe *pnv_ioda_get_pe(struct pci_dev *dev); extern void pnv_set_msi_irq_chip(struct pnv_phb *phb, unsigned int virq); -extern bool pnv_pci_enable_device_hook(struct pci_dev *dev); extern void pnv_pci_ioda2_set_bypass(struct pnv_ioda_pe *pe, bool enable); extern int pnv_eeh_post_init(void); @@ -247,16 +242,6 @@ extern void pnv_npu_take_ownership(struct pnv_ioda_pe *npe); extern void pnv_npu_release_ownership(struct pnv_ioda_pe *npe); extern int pnv_npu2_init(struct pnv_phb *phb); -/* cxl functions */ -extern bool pnv_cxl_enable_device_hook(struct pci_dev *dev); -extern void pnv_cxl_disable_device(struct pci_dev *dev); -extern int pnv_cxl_cx4_setup_msi_irqs(struct pci_dev *pdev, int nvec, int type); -extern void pnv_cxl_cx4_teardown_msi_irqs(struct pci_dev *pdev); - - -/* phb ops (cxl switches these when enabling the kernel api on the phb) */ -extern const struct pci_controller_ops pnv_cxl_cx4_ioda_controller_ops; - /* pci-ioda-tce.c */ #define POWERNV_IOMMU_DEFAULT_LEVELS 1 #define POWERNV_IOMMU_MAX_LEVELS 5 diff --git a/arch/powerpc/sysdev/msi_bitmap.c b/arch/powerpc/sysdev/msi_bitmap.c index 6243a7e537d0..e64a411d1a00 100644 --- a/arch/powerpc/sysdev/msi_bitmap.c +++ b/arch/powerpc/sysdev/msi_bitmap.c @@ -225,22 +225,23 @@ static void __init test_of_node(void) struct device_node of_node; struct property prop; struct msi_bitmap bmp; - int size = 256; - DECLARE_BITMAP(expected, size); +#define SIZE_EXPECTED 256 + DECLARE_BITMAP(expected, SIZE_EXPECTED); /* There should really be a struct device_node allocator */ memset(&of_node, 0, sizeof(of_node)); of_node_init(&of_node); of_node.full_name = node_name; - WARN_ON(msi_bitmap_alloc(&bmp, size, &of_node)); + WARN_ON(msi_bitmap_alloc(&bmp, SIZE_EXPECTED, &of_node)); /* No msi-available-ranges, so expect > 0 */ WARN_ON(msi_bitmap_reserve_dt_hwirqs(&bmp) <= 0); /* Should all still be free */ - WARN_ON(bitmap_find_free_region(bmp.bitmap, size, get_count_order(size))); - bitmap_release_region(bmp.bitmap, 0, get_count_order(size)); + WARN_ON(bitmap_find_free_region(bmp.bitmap, SIZE_EXPECTED, + get_count_order(SIZE_EXPECTED))); + bitmap_release_region(bmp.bitmap, 0, get_count_order(SIZE_EXPECTED)); /* Now create a fake msi-available-ranges property */ @@ -256,8 +257,8 @@ static void __init test_of_node(void) WARN_ON(msi_bitmap_reserve_dt_hwirqs(&bmp)); /* Check we got the expected result */ - WARN_ON(bitmap_parselist(expected_str, expected, size)); - WARN_ON(!bitmap_equal(expected, bmp.bitmap, size)); + WARN_ON(bitmap_parselist(expected_str, expected, SIZE_EXPECTED)); + WARN_ON(!bitmap_equal(expected, bmp.bitmap, SIZE_EXPECTED)); msi_bitmap_free(&bmp); kfree(bmp.bitmap); diff --git a/arch/powerpc/sysdev/xive/native.c b/arch/powerpc/sysdev/xive/native.c index 311185b9960a..39ab5ad58297 100644 --- a/arch/powerpc/sysdev/xive/native.c +++ b/arch/powerpc/sysdev/xive/native.c @@ -109,7 +109,7 @@ int xive_native_configure_irq(u32 hw_irq, u32 target, u8 prio, u32 sw_irq) rc = opal_xive_set_irq_config(hw_irq, target, prio, sw_irq); if (rc != OPAL_BUSY) break; - msleep(1); + msleep(OPAL_BUSY_DELAY_MS); } return rc == 0 ? 0 : -ENXIO; } @@ -163,7 +163,7 @@ int xive_native_configure_queue(u32 vp_id, struct xive_q *q, u8 prio, rc = opal_xive_set_queue_info(vp_id, prio, qpage_phys, order, flags); if (rc != OPAL_BUSY) break; - msleep(1); + msleep(OPAL_BUSY_DELAY_MS); } if (rc) { pr_err("Error %lld setting queue for prio %d\n", rc, prio); @@ -190,7 +190,7 @@ static void __xive_native_disable_queue(u32 vp_id, struct xive_q *q, u8 prio) rc = opal_xive_set_queue_info(vp_id, prio, 0, 0, 0); if (rc != OPAL_BUSY) break; - msleep(1); + msleep(OPAL_BUSY_DELAY_MS); } if (rc) pr_err("Error %lld disabling queue for prio %d\n", rc, prio); @@ -253,7 +253,7 @@ static int xive_native_get_ipi(unsigned int cpu, struct xive_cpu *xc) for (;;) { irq = opal_xive_allocate_irq(chip_id); if (irq == OPAL_BUSY) { - msleep(1); + msleep(OPAL_BUSY_DELAY_MS); continue; } if (irq < 0) { @@ -275,7 +275,7 @@ u32 xive_native_alloc_irq(void) rc = opal_xive_allocate_irq(OPAL_XIVE_ANY_CHIP); if (rc != OPAL_BUSY) break; - msleep(1); + msleep(OPAL_BUSY_DELAY_MS); } if (rc < 0) return 0; @@ -289,7 +289,7 @@ void xive_native_free_irq(u32 irq) s64 rc = opal_xive_free_irq(irq); if (rc != OPAL_BUSY) break; - msleep(1); + msleep(OPAL_BUSY_DELAY_MS); } } EXPORT_SYMBOL_GPL(xive_native_free_irq); @@ -305,7 +305,7 @@ static void xive_native_put_ipi(unsigned int cpu, struct xive_cpu *xc) for (;;) { rc = opal_xive_free_irq(xc->hw_ipi); if (rc == OPAL_BUSY) { - msleep(1); + msleep(OPAL_BUSY_DELAY_MS); continue; } xc->hw_ipi = 0; @@ -400,7 +400,7 @@ static void xive_native_setup_cpu(unsigned int cpu, struct xive_cpu *xc) rc = opal_xive_set_vp_info(vp, OPAL_XIVE_VP_ENABLED, 0); if (rc != OPAL_BUSY) break; - msleep(1); + msleep(OPAL_BUSY_DELAY_MS); } if (rc) { pr_err("Failed to enable pool VP on CPU %d\n", cpu); @@ -444,7 +444,7 @@ static void xive_native_teardown_cpu(unsigned int cpu, struct xive_cpu *xc) rc = opal_xive_set_vp_info(vp, 0, 0); if (rc != OPAL_BUSY) break; - msleep(1); + msleep(OPAL_BUSY_DELAY_MS); } } @@ -645,7 +645,7 @@ u32 xive_native_alloc_vp_block(u32 max_vcpus) rc = opal_xive_alloc_vp_block(order); switch (rc) { case OPAL_BUSY: - msleep(1); + msleep(OPAL_BUSY_DELAY_MS); break; case OPAL_XIVE_PROVISIONING: if (!xive_native_provision_pages()) @@ -687,7 +687,7 @@ int xive_native_enable_vp(u32 vp_id, bool single_escalation) rc = opal_xive_set_vp_info(vp_id, flags, 0); if (rc != OPAL_BUSY) break; - msleep(1); + msleep(OPAL_BUSY_DELAY_MS); } return rc ? -EIO : 0; } @@ -701,7 +701,7 @@ int xive_native_disable_vp(u32 vp_id) rc = opal_xive_set_vp_info(vp_id, 0, 0); if (rc != OPAL_BUSY) break; - msleep(1); + msleep(OPAL_BUSY_DELAY_MS); } return rc ? -EIO : 0; } diff --git a/arch/powerpc/xmon/xmon.c b/arch/powerpc/xmon/xmon.c index 21119cfe8474..b7dd683b0470 100644 --- a/arch/powerpc/xmon/xmon.c +++ b/arch/powerpc/xmon/xmon.c @@ -918,13 +918,13 @@ static void remove_cpu_bpts(void) static void show_uptime(void) { - struct timespec uptime; + struct timespec64 uptime; if (setjmp(bus_error_jmp) == 0) { catch_memory_errors = 1; sync(); - get_monotonic_boottime(&uptime); + ktime_get_coarse_boottime_ts64(&uptime); printf("Uptime: %lu.%.2lu seconds\n", (unsigned long)uptime.tv_sec, ((unsigned long)uptime.tv_nsec / (NSEC_PER_SEC/100))); |