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| author | Gabriel F. T. Gomes <gabriel@inconstante.eti.br> | 2017-12-19 15:18:07 -0200 |
|---|---|---|
| committer | Gabriel F. T. Gomes <gabriel@inconstante.eti.br> | 2017-12-19 15:18:07 -0200 |
| commit | 567785e2b50321d02d7682aae085f19dc3404f3d (patch) | |
| tree | 53e82c7e00c5a2e7674eeee7627ba17477316c58 /sysdeps/x86/cpu-features.h | |
| parent | 0f0074a4f1a3ebddb4d5acbbf71ba7c9a2182a47 (diff) | |
| parent | c5b38f2ecec6facf818e3c50ad014be05b52c179 (diff) | |
| download | glibc-ibm/2.24/master.tar glibc-ibm/2.24/master.tar.gz glibc-ibm/2.24/master.tar.bz2 glibc-ibm/2.24/master.zip | |
Merge branch release/2.24/master into ibm/2.24/masteribm/2.24/master
Diffstat (limited to 'sysdeps/x86/cpu-features.h')
| -rw-r--r-- | sysdeps/x86/cpu-features.h | 23 |
1 files changed, 18 insertions, 5 deletions
diff --git a/sysdeps/x86/cpu-features.h b/sysdeps/x86/cpu-features.h index 2609ac0999..507a141414 100644 --- a/sysdeps/x86/cpu-features.h +++ b/sysdeps/x86/cpu-features.h @@ -37,9 +37,8 @@ #define bit_arch_Prefer_No_VZEROUPPER (1 << 17) #define bit_arch_Fast_Unaligned_Copy (1 << 18) #define bit_arch_Prefer_ERMS (1 << 19) -#define bit_arch_Use_dl_runtime_resolve_opt (1 << 20) -#define bit_arch_Use_dl_runtime_resolve_slow (1 << 21) -#define bit_arch_Prefer_No_AVX512 (1 << 22) +#define bit_arch_Prefer_No_AVX512 (1 << 20) +#define bit_arch_XSAVEC_Usable (1 << 21) /* CPUID Feature flags. */ @@ -82,6 +81,15 @@ /* The current maximum size of the feature integer bit array. */ #define FEATURE_INDEX_MAX 1 +/* Offset for fxsave/xsave area used by _dl_runtime_resolve. Also need + space to preserve RCX, RDX, RSI, RDI, R8, R9 and RAX. It must be + aligned to 16 bytes for fxsave and 64 bytes for xsave. */ +#define STATE_SAVE_OFFSET (8 * 7 + 8) + +/* Save SSE, AVX, AVX512, mask and bound registers. */ +#define STATE_SAVE_MASK \ + ((1 << 1) | (1 << 2) | (1 << 3) | (1 << 5) | (1 << 6) | (1 << 7)) + #ifdef __ASSEMBLER__ # include <cpu-features-offsets.h> @@ -206,6 +214,12 @@ struct cpu_features } cpuid[COMMON_CPUID_INDEX_MAX]; unsigned int family; unsigned int model; + /* The type must be unsigned long int so that we use + + sub xsave_state_size_offset(%rip) %RSP_LP + + in _dl_runtime_resolve. */ + unsigned long int xsave_state_size; unsigned int feature[FEATURE_INDEX_MAX]; }; @@ -298,9 +312,8 @@ extern const struct cpu_features *__get_cpu_features (void) # define index_arch_Prefer_No_VZEROUPPER FEATURE_INDEX_1 # define index_arch_Fast_Unaligned_Copy FEATURE_INDEX_1 # define index_arch_Prefer_ERMS FEATURE_INDEX_1 -# define index_arch_Use_dl_runtime_resolve_opt FEATURE_INDEX_1 -# define index_arch_Use_dl_runtime_resolve_slow FEATURE_INDEX_1 # define index_arch_Prefer_No_AVX512 FEATURE_INDEX_1 +# define index_arch_XSAVEC_Usable FEATURE_INDEX_1 #endif /* !__ASSEMBLER__ */ |