diff options
Diffstat (limited to 'arch/x86/include/asm/cpufeature.h')
| -rw-r--r-- | arch/x86/include/asm/cpufeature.h | 81 |
1 files changed, 5 insertions, 76 deletions
diff --git a/arch/x86/include/asm/cpufeature.h b/arch/x86/include/asm/cpufeature.h index de1ad09fe8d7..893cbca37fe9 100644 --- a/arch/x86/include/asm/cpufeature.h +++ b/arch/x86/include/asm/cpufeature.h @@ -4,11 +4,12 @@ #include <asm/processor.h> -#if defined(__KERNEL__) && !defined(__ASSEMBLY__) +#if defined(__KERNEL__) && !defined(__ASSEMBLER__) #include <asm/asm.h> #include <linux/bitops.h> #include <asm/alternative.h> +#include <asm/cpufeaturemasks.h> enum cpuid_leafs { @@ -37,92 +38,19 @@ enum cpuid_leafs NR_CPUID_WORDS, }; -#define X86_CAP_FMT_NUM "%d:%d" -#define x86_cap_flag_num(flag) ((flag) >> 5), ((flag) & 31) - extern const char * const x86_cap_flags[NCAPINTS*32]; extern const char * const x86_power_flags[32]; -#define X86_CAP_FMT "%s" -#define x86_cap_flag(flag) x86_cap_flags[flag] /* * In order to save room, we index into this array by doing * X86_BUG_<name> - NCAPINTS*32. */ extern const char * const x86_bug_flags[NBUGINTS*32]; +#define x86_bug_flag(flag) x86_bug_flags[flag] #define test_cpu_cap(c, bit) \ arch_test_bit(bit, (unsigned long *)((c)->x86_capability)) -/* - * There are 32 bits/features in each mask word. The high bits - * (selected with (bit>>5) give us the word number and the low 5 - * bits give us the bit/feature number inside the word. - * (1UL<<((bit)&31) gives us a mask for the feature_bit so we can - * see if it is set in the mask word. - */ -#define CHECK_BIT_IN_MASK_WORD(maskname, word, bit) \ - (((bit)>>5)==(word) && (1UL<<((bit)&31) & maskname##word )) - -/* - * {REQUIRED,DISABLED}_MASK_CHECK below may seem duplicated with the - * following BUILD_BUG_ON_ZERO() check but when NCAPINTS gets changed, all - * header macros which use NCAPINTS need to be changed. The duplicated macro - * use causes the compiler to issue errors for all headers so that all usage - * sites can be corrected. - */ -#define REQUIRED_MASK_BIT_SET(feature_bit) \ - ( CHECK_BIT_IN_MASK_WORD(REQUIRED_MASK, 0, feature_bit) || \ - CHECK_BIT_IN_MASK_WORD(REQUIRED_MASK, 1, feature_bit) || \ - CHECK_BIT_IN_MASK_WORD(REQUIRED_MASK, 2, feature_bit) || \ - CHECK_BIT_IN_MASK_WORD(REQUIRED_MASK, 3, feature_bit) || \ - CHECK_BIT_IN_MASK_WORD(REQUIRED_MASK, 4, feature_bit) || \ - CHECK_BIT_IN_MASK_WORD(REQUIRED_MASK, 5, feature_bit) || \ - CHECK_BIT_IN_MASK_WORD(REQUIRED_MASK, 6, feature_bit) || \ - CHECK_BIT_IN_MASK_WORD(REQUIRED_MASK, 7, feature_bit) || \ - CHECK_BIT_IN_MASK_WORD(REQUIRED_MASK, 8, feature_bit) || \ - CHECK_BIT_IN_MASK_WORD(REQUIRED_MASK, 9, feature_bit) || \ - CHECK_BIT_IN_MASK_WORD(REQUIRED_MASK, 10, feature_bit) || \ - CHECK_BIT_IN_MASK_WORD(REQUIRED_MASK, 11, feature_bit) || \ - CHECK_BIT_IN_MASK_WORD(REQUIRED_MASK, 12, feature_bit) || \ - CHECK_BIT_IN_MASK_WORD(REQUIRED_MASK, 13, feature_bit) || \ - CHECK_BIT_IN_MASK_WORD(REQUIRED_MASK, 14, feature_bit) || \ - CHECK_BIT_IN_MASK_WORD(REQUIRED_MASK, 15, feature_bit) || \ - CHECK_BIT_IN_MASK_WORD(REQUIRED_MASK, 16, feature_bit) || \ - CHECK_BIT_IN_MASK_WORD(REQUIRED_MASK, 17, feature_bit) || \ - CHECK_BIT_IN_MASK_WORD(REQUIRED_MASK, 18, feature_bit) || \ - CHECK_BIT_IN_MASK_WORD(REQUIRED_MASK, 19, feature_bit) || \ - CHECK_BIT_IN_MASK_WORD(REQUIRED_MASK, 20, feature_bit) || \ - CHECK_BIT_IN_MASK_WORD(REQUIRED_MASK, 21, feature_bit) || \ - REQUIRED_MASK_CHECK || \ - BUILD_BUG_ON_ZERO(NCAPINTS != 22)) - -#define DISABLED_MASK_BIT_SET(feature_bit) \ - ( CHECK_BIT_IN_MASK_WORD(DISABLED_MASK, 0, feature_bit) || \ - CHECK_BIT_IN_MASK_WORD(DISABLED_MASK, 1, feature_bit) || \ - CHECK_BIT_IN_MASK_WORD(DISABLED_MASK, 2, feature_bit) || \ - CHECK_BIT_IN_MASK_WORD(DISABLED_MASK, 3, feature_bit) || \ - CHECK_BIT_IN_MASK_WORD(DISABLED_MASK, 4, feature_bit) || \ - CHECK_BIT_IN_MASK_WORD(DISABLED_MASK, 5, feature_bit) || \ - CHECK_BIT_IN_MASK_WORD(DISABLED_MASK, 6, feature_bit) || \ - CHECK_BIT_IN_MASK_WORD(DISABLED_MASK, 7, feature_bit) || \ - CHECK_BIT_IN_MASK_WORD(DISABLED_MASK, 8, feature_bit) || \ - CHECK_BIT_IN_MASK_WORD(DISABLED_MASK, 9, feature_bit) || \ - CHECK_BIT_IN_MASK_WORD(DISABLED_MASK, 10, feature_bit) || \ - CHECK_BIT_IN_MASK_WORD(DISABLED_MASK, 11, feature_bit) || \ - CHECK_BIT_IN_MASK_WORD(DISABLED_MASK, 12, feature_bit) || \ - CHECK_BIT_IN_MASK_WORD(DISABLED_MASK, 13, feature_bit) || \ - CHECK_BIT_IN_MASK_WORD(DISABLED_MASK, 14, feature_bit) || \ - CHECK_BIT_IN_MASK_WORD(DISABLED_MASK, 15, feature_bit) || \ - CHECK_BIT_IN_MASK_WORD(DISABLED_MASK, 16, feature_bit) || \ - CHECK_BIT_IN_MASK_WORD(DISABLED_MASK, 17, feature_bit) || \ - CHECK_BIT_IN_MASK_WORD(DISABLED_MASK, 18, feature_bit) || \ - CHECK_BIT_IN_MASK_WORD(DISABLED_MASK, 19, feature_bit) || \ - CHECK_BIT_IN_MASK_WORD(DISABLED_MASK, 20, feature_bit) || \ - CHECK_BIT_IN_MASK_WORD(DISABLED_MASK, 21, feature_bit) || \ - DISABLED_MASK_CHECK || \ - BUILD_BUG_ON_ZERO(NCAPINTS != 22)) - #define cpu_has(c, bit) \ (__builtin_constant_p(bit) && REQUIRED_MASK_BIT_SET(bit) ? 1 : \ test_cpu_cap(c, bit)) @@ -149,6 +77,7 @@ extern const char * const x86_bug_flags[NBUGINTS*32]; extern void setup_clear_cpu_cap(unsigned int bit); extern void clear_cpu_cap(struct cpuinfo_x86 *c, unsigned int bit); +void check_cpufeature_deps(struct cpuinfo_x86 *c); #define setup_force_cpu_cap(bit) do { \ \ @@ -208,5 +137,5 @@ t_no: #define CPU_FEATURE_TYPEVAL boot_cpu_data.x86_vendor, boot_cpu_data.x86, \ boot_cpu_data.x86_model -#endif /* defined(__KERNEL__) && !defined(__ASSEMBLY__) */ +#endif /* defined(__KERNEL__) && !defined(__ASSEMBLER__) */ #endif /* _ASM_X86_CPUFEATURE_H */ |