diff options
Diffstat (limited to 'arch/powerpc/kernel/cputable.c')
| -rw-r--r-- | arch/powerpc/kernel/cputable.c | 40 |
1 files changed, 37 insertions, 3 deletions
diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c index e79b9daa873c..6f849832a669 100644 --- a/arch/powerpc/kernel/cputable.c +++ b/arch/powerpc/kernel/cputable.c @@ -23,7 +23,9 @@ #include <asm/mmu.h> #include <asm/setup.h> -struct cpu_spec* cur_cpu_spec = NULL; +static struct cpu_spec the_cpu_spec __read_mostly; + +struct cpu_spec* cur_cpu_spec __read_mostly = NULL; EXPORT_SYMBOL(cur_cpu_spec); /* The platform string corresponding to the real PVR */ @@ -122,7 +124,8 @@ extern void __restore_cpu_e6500(void); #define COMMON_USER_POWER9 COMMON_USER_POWER8 #define COMMON_USER2_POWER9 (COMMON_USER2_POWER8 | \ PPC_FEATURE2_ARCH_3_00 | \ - PPC_FEATURE2_HAS_IEEE128) + PPC_FEATURE2_HAS_IEEE128 | \ + PPC_FEATURE2_DARN ) #ifdef CONFIG_PPC_BOOK3E_64 #define COMMON_USER_BOOKE (COMMON_USER_PPC64 | PPC_FEATURE_BOOKE) @@ -2179,7 +2182,15 @@ static struct cpu_spec __initdata cpu_specs[] = { #endif /* CONFIG_E500 */ }; -static struct cpu_spec the_cpu_spec; +void __init set_cur_cpu_spec(struct cpu_spec *s) +{ + struct cpu_spec *t = &the_cpu_spec; + + t = PTRRELOC(t); + *t = *s; + + *PTRRELOC(&cur_cpu_spec) = &the_cpu_spec; +} static struct cpu_spec * __init setup_cpu_spec(unsigned long offset, struct cpu_spec *s) @@ -2266,6 +2277,29 @@ struct cpu_spec * __init identify_cpu(unsigned long offset, unsigned int pvr) return NULL; } +/* + * Used by cpufeatures to get the name for CPUs with a PVR table. + * If they don't hae a PVR table, cpufeatures gets the name from + * cpu device-tree node. + */ +void __init identify_cpu_name(unsigned int pvr) +{ + struct cpu_spec *s = cpu_specs; + struct cpu_spec *t = &the_cpu_spec; + int i; + + s = PTRRELOC(s); + t = PTRRELOC(t); + + for (i = 0; i < ARRAY_SIZE(cpu_specs); i++,s++) { + if ((pvr & s->pvr_mask) == s->pvr_value) { + t->cpu_name = s->cpu_name; + return; + } + } +} + + #ifdef CONFIG_JUMP_LABEL_FEATURE_CHECKS struct static_key_true cpu_feature_keys[NUM_CPU_FTR_KEYS] = { [0 ... NUM_CPU_FTR_KEYS - 1] = STATIC_KEY_TRUE_INIT |