diff options
Diffstat (limited to 'arch')
| -rw-r--r-- | arch/powerpc/kernel/cputable.c | 45 |
1 files changed, 24 insertions, 21 deletions
diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c index b03a442b7888..8662cf053fa0 100644 --- a/arch/powerpc/kernel/cputable.c +++ b/arch/powerpc/kernel/cputable.c @@ -71,7 +71,7 @@ extern void __restore_cpu_ppc970(void); #define COMMON_USER_BOOKE (PPC_FEATURE_32 | PPC_FEATURE_HAS_MMU | \ PPC_FEATURE_BOOKE) -static struct cpu_spec cpu_specs[] = { +static struct cpu_spec __initdata cpu_specs[] = { #ifdef CONFIG_PPC64 { /* Power3 */ .pvr_mask = 0xffff0000, @@ -327,14 +327,6 @@ static struct cpu_spec cpu_specs[] = { .cpu_user_features = COMMON_USER_POWER5_PLUS, .icache_bsize = 128, .dcache_bsize = 128, - .num_pmcs = 6, - .pmc_type = PPC_PMC_IBM, - .oprofile_cpu_type = "ppc64/power6", - .oprofile_type = PPC_OPROFILE_POWER4, - .oprofile_mmcra_sihv = POWER6_MMCRA_SIHV, - .oprofile_mmcra_sipr = POWER6_MMCRA_SIPR, - .oprofile_mmcra_clear = POWER6_MMCRA_THRM | - POWER6_MMCRA_OTHER, .platform = "power5+", }, { /* Power6 */ @@ -364,14 +356,6 @@ static struct cpu_spec cpu_specs[] = { .cpu_user_features = COMMON_USER_POWER6, .icache_bsize = 128, .dcache_bsize = 128, - .num_pmcs = 6, - .pmc_type = PPC_PMC_IBM, - .oprofile_cpu_type = "ppc64/power6", - .oprofile_type = PPC_OPROFILE_POWER4, - .oprofile_mmcra_sihv = POWER6_MMCRA_SIHV, - .oprofile_mmcra_sipr = POWER6_MMCRA_SIPR, - .oprofile_mmcra_clear = POWER6_MMCRA_THRM | - POWER6_MMCRA_OTHER, .platform = "power6", }, { /* Cell Broadband Engine */ @@ -1316,18 +1300,37 @@ static struct cpu_spec cpu_specs[] = { #endif /* CONFIG_PPC32 */ }; -struct cpu_spec *identify_cpu(unsigned long offset, unsigned int pvr) +static struct cpu_spec the_cpu_spec; + +struct cpu_spec * __init identify_cpu(unsigned long offset, unsigned int pvr) { struct cpu_spec *s = cpu_specs; - struct cpu_spec **cur = &cur_cpu_spec; + struct cpu_spec *t = &the_cpu_spec; int i; s = PTRRELOC(s); - cur = PTRRELOC(cur); + t = PTRRELOC(t); for (i = 0; i < ARRAY_SIZE(cpu_specs); i++,s++) if ((pvr & s->pvr_mask) == s->pvr_value) { - *cur = cpu_specs + i; + /* + * If we are overriding a previous value derived + * from the real PVR with a new value obtained + * using a logical PVR value, don't modify the + * performance monitor fields. + */ + if (t->num_pmcs && !s->num_pmcs) { + t->cpu_name = s->cpu_name; + t->cpu_features = s->cpu_features; + t->cpu_user_features = s->cpu_user_features; + t->icache_bsize = s->icache_bsize; + t->dcache_bsize = s->dcache_bsize; + t->cpu_setup = s->cpu_setup; + t->cpu_restore = s->cpu_restore; + t->platform = s->platform; + } else + *t = *s; + *PTRRELOC(&cur_cpu_spec) = &the_cpu_spec; #if defined(CONFIG_PPC64) || defined(CONFIG_BOOKE) /* ppc64 and booke expect identify_cpu to also call * setup_cpu for that processor. I will consolidate |