diff options
Diffstat (limited to 'arch/powerpc')
| -rw-r--r-- | arch/powerpc/include/asm/cputable.h | 7 | ||||
| -rw-r--r-- | arch/powerpc/kernel/cputable.c | 6 | ||||
| -rw-r--r-- | arch/powerpc/kernel/dt_cpu_ftrs.c | 2 | ||||
| -rw-r--r-- | arch/powerpc/kernel/idle_book3s.S | 8 |
4 files changed, 12 insertions, 11 deletions
diff --git a/arch/powerpc/include/asm/cputable.h b/arch/powerpc/include/asm/cputable.h index 1ca26ca85ec6..04c31db5e7c3 100644 --- a/arch/powerpc/include/asm/cputable.h +++ b/arch/powerpc/include/asm/cputable.h @@ -215,7 +215,7 @@ enum { #define CPU_FTR_DABRX LONG_ASM_CONST(0x0800000000000000) #define CPU_FTR_PMAO_BUG LONG_ASM_CONST(0x1000000000000000) #define CPU_FTR_POWER9_DD1 LONG_ASM_CONST(0x4000000000000000) -#define CPU_FTR_POWER9_DD20 LONG_ASM_CONST(0x8000000000000000) +#define CPU_FTR_POWER9_DD2_1 LONG_ASM_CONST(0x8000000000000000) #ifndef __ASSEMBLY__ @@ -478,7 +478,8 @@ enum { CPU_FTR_ARCH_207S | CPU_FTR_TM_COMP | CPU_FTR_ARCH_300) #define CPU_FTRS_POWER9_DD1 ((CPU_FTRS_POWER9 | CPU_FTR_POWER9_DD1) & \ (~CPU_FTR_SAO)) -#define CPU_FTRS_POWER9_DD20 (CPU_FTRS_POWER9 | CPU_FTR_POWER9_DD20) +#define CPU_FTRS_POWER9_DD2_0 CPU_FTRS_POWER9 +#define CPU_FTRS_POWER9_DD2_1 (CPU_FTRS_POWER9 | CPU_FTR_POWER9_DD2_1) #define CPU_FTRS_CELL (CPU_FTR_USE_TB | CPU_FTR_LWSYNC | \ CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_CTRL | \ CPU_FTR_ALTIVEC_COMP | CPU_FTR_MMCRA | CPU_FTR_SMT | \ @@ -498,7 +499,7 @@ enum { 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 | CPU_FTRS_POWER9 | \ - CPU_FTRS_POWER9_DD1 | CPU_FTRS_POWER9_DD20) + CPU_FTRS_POWER9_DD1 | CPU_FTRS_POWER9_DD2_1) #endif #else enum { diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c index 171820190de7..1350f49d81a8 100644 --- a/arch/powerpc/kernel/cputable.c +++ b/arch/powerpc/kernel/cputable.c @@ -551,7 +551,7 @@ static struct cpu_spec __initdata cpu_specs[] = { .pvr_mask = 0xffffefff, .pvr_value = 0x004e0200, .cpu_name = "POWER9 (raw)", - .cpu_features = CPU_FTRS_POWER9_DD20, + .cpu_features = CPU_FTRS_POWER9_DD2_0, .cpu_user_features = COMMON_USER_POWER9, .cpu_user_features2 = COMMON_USER2_POWER9, .mmu_features = MMU_FTRS_POWER9, @@ -567,11 +567,11 @@ static struct cpu_spec __initdata cpu_specs[] = { .machine_check_early = __machine_check_early_realmode_p9, .platform = "power9", }, - { /* Power9 */ + { /* Power9 DD 2.1 or later (see DD2.0 above) */ .pvr_mask = 0xffff0000, .pvr_value = 0x004e0000, .cpu_name = "POWER9 (raw)", - .cpu_features = CPU_FTRS_POWER9, + .cpu_features = CPU_FTRS_POWER9_DD2_1, .cpu_user_features = COMMON_USER_POWER9, .cpu_user_features2 = COMMON_USER2_POWER9, .mmu_features = MMU_FTRS_POWER9, diff --git a/arch/powerpc/kernel/dt_cpu_ftrs.c b/arch/powerpc/kernel/dt_cpu_ftrs.c index 58e3b51de31c..602e0fde19b4 100644 --- a/arch/powerpc/kernel/dt_cpu_ftrs.c +++ b/arch/powerpc/kernel/dt_cpu_ftrs.c @@ -736,7 +736,7 @@ static __init void cpufeatures_cpu_quirks(void) if ((version & 0xffffff00) == 0x004e0100) cur_cpu_spec->cpu_features |= CPU_FTR_POWER9_DD1; else if ((version & 0xffffefff) == 0x004e0200) - cur_cpu_spec->cpu_features |= CPU_FTR_POWER9_DD20; + cur_cpu_spec->cpu_features &= ~CPU_FTR_POWER9_DD2_1; } static void __init cpufeatures_setup_finished(void) diff --git a/arch/powerpc/kernel/idle_book3s.S b/arch/powerpc/kernel/idle_book3s.S index 59657783d1d5..01e1c1997893 100644 --- a/arch/powerpc/kernel/idle_book3s.S +++ b/arch/powerpc/kernel/idle_book3s.S @@ -357,13 +357,13 @@ power_enter_stop: .Lhandle_esl_ec_set: BEGIN_FTR_SECTION /* - * POWER9 DD2 can incorrectly set PMAO when waking up after a - * state-loss idle. Saving and restoring MMCR0 over idle is a + * POWER9 DD2.0 or earlier can incorrectly set PMAO when waking up after + * a state-loss idle. Saving and restoring MMCR0 over idle is a * workaround. */ mfspr r4,SPRN_MMCR0 std r4,_MMCR0(r1) -END_FTR_SECTION_IFSET(CPU_FTR_POWER9_DD1 | CPU_FTR_POWER9_DD20) +END_FTR_SECTION_IFCLR(CPU_FTR_POWER9_DD2_1) /* * Check if the requested state is a deep idle state. @@ -554,7 +554,7 @@ BEGIN_FTR_SECTION ld r1,PACAR1(r13) ld r4,_MMCR0(r1) mtspr SPRN_MMCR0,r4 -END_FTR_SECTION_IFSET(CPU_FTR_POWER9_DD1 | CPU_FTR_POWER9_DD20) +END_FTR_SECTION_IFCLR(CPU_FTR_POWER9_DD2_1) mfspr r4,SPRN_MMCRA ori r4,r4,(1 << (63-60)) mtspr SPRN_MMCRA,r4 |