diff options
Diffstat (limited to 'arch/powerpc/kernel/dt_cpu_ftrs.c')
| -rw-r--r-- | arch/powerpc/kernel/dt_cpu_ftrs.c | 52 |
1 files changed, 42 insertions, 10 deletions
diff --git a/arch/powerpc/kernel/dt_cpu_ftrs.c b/arch/powerpc/kernel/dt_cpu_ftrs.c index 3a409517c031..6f8c0c6b937a 100644 --- a/arch/powerpc/kernel/dt_cpu_ftrs.c +++ b/arch/powerpc/kernel/dt_cpu_ftrs.c @@ -24,7 +24,6 @@ /* Device-tree visible constants follow */ -#define ISA_V2_07B 2070 #define ISA_V3_0B 3000 #define ISA_V3_1 3100 @@ -67,6 +66,7 @@ struct dt_cpu_feature { extern long __machine_check_early_realmode_p8(struct pt_regs *regs); extern long __machine_check_early_realmode_p9(struct pt_regs *regs); +extern long __machine_check_early_realmode_p10(struct pt_regs *regs); static int hv_mode; @@ -337,6 +337,7 @@ static int __init feat_enable_mmu_radix(struct dt_cpu_feature *f) #ifdef CONFIG_PPC_RADIX_MMU cur_cpu_spec->mmu_features |= MMU_FTR_TYPE_RADIX; cur_cpu_spec->mmu_features |= MMU_FTRS_HASH_BASE; + cur_cpu_spec->mmu_features |= MMU_FTR_GTSE; cur_cpu_spec->cpu_user_features |= PPC_FEATURE_HAS_MMU; return 1; @@ -450,6 +451,39 @@ static int __init feat_enable_pmu_power9(struct dt_cpu_feature *f) return 1; } +static void init_pmu_power10(void) +{ + init_pmu_power9(); + + mtspr(SPRN_MMCR3, 0); + mtspr(SPRN_MMCRA, MMCRA_BHRB_DISABLE); +} + +static int __init feat_enable_pmu_power10(struct dt_cpu_feature *f) +{ + hfscr_pmu_enable(); + + init_pmu_power10(); + init_pmu_registers = init_pmu_power10; + + cur_cpu_spec->cpu_features |= CPU_FTR_MMCRA; + cur_cpu_spec->cpu_user_features |= PPC_FEATURE_PSERIES_PERFMON_COMPAT; + + cur_cpu_spec->num_pmcs = 6; + cur_cpu_spec->pmc_type = PPC_PMC_IBM; + cur_cpu_spec->oprofile_cpu_type = "ppc64/power10"; + + return 1; +} + +static int __init feat_enable_mce_power10(struct dt_cpu_feature *f) +{ + cur_cpu_spec->platform = "power10"; + cur_cpu_spec->machine_check_early = __machine_check_early_realmode_p10; + + return 1; +} + static int __init feat_enable_tm(struct dt_cpu_feature *f) { #ifdef CONFIG_PPC_TRANSACTIONAL_MEM @@ -587,6 +621,7 @@ static struct dt_cpu_feature_match __initdata {"little-endian", feat_enable_le, CPU_FTR_REAL_LE}, {"smt", feat_enable_smt, 0}, {"interrupt-facilities", feat_enable, 0}, + {"system-call-vectored", feat_enable, 0}, {"timer-facilities", feat_enable, 0}, {"timer-facilities-v3", feat_enable, 0}, {"debug-facilities", feat_enable, 0}, @@ -622,7 +657,7 @@ static struct dt_cpu_feature_match __initdata {"processor-control-facility-v3", feat_enable_dbell, CPU_FTR_DBELL}, {"processor-utilization-of-resources-register", feat_enable_purr, 0}, {"no-execute", feat_enable, 0}, - {"strong-access-ordering", feat_enable, CPU_FTR_SAO}, + /* strong-access-ordering is unused */ {"cache-inhibited-large-page", feat_enable_large_ci, 0}, {"coprocessor-icswx", feat_enable, 0}, {"hypervisor-virtualization-interrupt", feat_enable_hvi, 0}, @@ -638,7 +673,9 @@ static struct dt_cpu_feature_match __initdata {"group-start-register", feat_enable, 0}, {"pc-relative-addressing", feat_enable, 0}, {"machine-check-power9", feat_enable_mce_power9, 0}, + {"machine-check-power10", feat_enable_mce_power10, 0}, {"performance-monitor-power9", feat_enable_pmu_power9, 0}, + {"performance-monitor-power10", feat_enable_pmu_power10, 0}, {"event-based-branch-v3", feat_enable, 0}, {"random-number-generator", feat_enable, 0}, {"system-call-vectored", feat_disable, 0}, @@ -649,6 +686,7 @@ static struct dt_cpu_feature_match __initdata {"wait-v3", feat_enable, 0}, {"prefix-instructions", feat_enable, 0}, {"matrix-multiply-assist", feat_enable_mma, 0}, + {"debug-facilities-v31", feat_enable, CPU_FTR_DAWR1}, }; static bool __initdata using_dt_cpu_ftrs; @@ -674,12 +712,12 @@ static void __init cpufeatures_setup_start(u32 isa) { pr_info("setup for ISA %d\n", isa); - if (isa >= 3000) { + if (isa >= ISA_V3_0B) { cur_cpu_spec->cpu_features |= CPU_FTR_ARCH_300; cur_cpu_spec->cpu_user_features2 |= PPC_FEATURE2_ARCH_3_00; } - if (isa >= 3100) { + if (isa >= ISA_V3_1) { cur_cpu_spec->cpu_features |= CPU_FTR_ARCH_31; cur_cpu_spec->cpu_user_features2 |= PPC_FEATURE2_ARCH_3_1; } @@ -776,12 +814,6 @@ static __init void cpufeatures_cpu_quirks(void) } update_tlbie_feature_flag(version); - /* - * PKEY was not in the initial base or feature node - * specification, but it should become optional in the next - * cpu feature version sequence. - */ - cur_cpu_spec->cpu_features |= CPU_FTR_PKEY; } static void __init cpufeatures_setup_finished(void) |