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| author | H.J. Lu <hjl.tools@gmail.com> | 2018-12-03 05:54:43 -0800 |
|---|---|---|
| committer | H.J. Lu <hjl.tools@gmail.com> | 2018-12-03 05:54:56 -0800 |
| commit | c22e4c2a1431c5e77bf4288d35bf7629f2f093aa (patch) | |
| tree | 666ae70088b899ad87a250a08b3be7a24bbc0157 /ChangeLog | |
| parent | 7b36d26b22d147ffc347f427f9fd584700578a94 (diff) | |
| download | glibc-c22e4c2a1431c5e77bf4288d35bf7629f2f093aa.zip glibc-c22e4c2a1431c5e77bf4288d35bf7629f2f093aa.tar.gz glibc-c22e4c2a1431c5e77bf4288d35bf7629f2f093aa.tar.bz2 | |
x86: Extend CPUID support in struct cpu_features
Extend CPUID support for all feature bits from CPUID. Add a new macro,
CPU_FEATURE_USABLE, which can be used to check if a feature is usable at
run-time, instead of HAS_CPU_FEATURE and HAS_ARCH_FEATURE.
Add COMMON_CPUID_INDEX_D_ECX_1, COMMON_CPUID_INDEX_80000007 and
COMMON_CPUID_INDEX_80000008 to check CPU feature bits in them.
Tested on i686 and x86-64 as well as using build-many-glibcs.py with
x86 targets.
* sysdeps/x86/cacheinfo.c (intel_check_word): Updated for
cpu_features_basic.
(__cache_sysconf): Likewise.
(init_cacheinfo): Likewise.
* sysdeps/x86/cpu-features.c (get_extended_indeces): Also
populate COMMON_CPUID_INDEX_80000007 and
COMMON_CPUID_INDEX_80000008.
(get_common_indices): Also populate COMMON_CPUID_INDEX_D_ECX_1.
Use CPU_FEATURES_CPU_P (cpu_features, XSAVEC) to check if
XSAVEC is available. Set the bit_arch_XXX_Usable bits.
(init_cpu_features): Use _Static_assert on
index_arch_Fast_Unaligned_Load.
__get_cpuid_registers and __get_arch_feature. Updated for
cpu_features_basic. Set stepping in cpu_features.
* sysdeps/x86/cpu-features.h: (FEATURE_INDEX_1): Changed to enum.
(FEATURE_INDEX_2): New.
(FEATURE_INDEX_MAX): Changed to enum.
(COMMON_CPUID_INDEX_D_ECX_1): New.
(COMMON_CPUID_INDEX_80000007): Likewise.
(COMMON_CPUID_INDEX_80000008): Likewise.
(cpuid_registers): Likewise.
(cpu_features_basic): Likewise.
(CPU_FEATURE_USABLE): Likewise.
(bit_arch_XXX_Usable): Likewise.
(cpu_features): Use cpuid_registers and cpu_features_basic.
(bit_arch_XXX): Reweritten.
(bit_cpu_XXX): Likewise.
(index_cpu_XXX): Likewise.
(reg_XXX): Likewise.
* sysdeps/x86/tst-get-cpu-features.c: Include <stdio.h> and
<support/check.h>.
(CHECK_CPU_FEATURE): New.
(CHECK_CPU_FEATURE_USABLE): Likewise.
(cpu_kinds): Likewise.
(do_test): Print vendor, family, model and stepping. Check
HAS_CPU_FEATURE and CPU_FEATURE_USABLE.
(TEST_FUNCTION): Removed.
Include <support/test-driver.c> instead of
"../../test-skeleton.c".
* sysdeps/x86_64/multiarch/sched_cpucount.c (__sched_cpucount):
Check POPCNT instead of POPCOUNT.
* sysdeps/x86_64/multiarch/test-multiarch.c (do_test): Likewise.
Diffstat (limited to 'ChangeLog')
| -rw-r--r-- | ChangeLog | 45 |
1 files changed, 45 insertions, 0 deletions
@@ -1,3 +1,48 @@ +2018-12-03 H.J. Lu <hongjiu.lu@intel.com> + + * sysdeps/x86/cacheinfo.c (intel_check_word): Updated for + cpu_features_basic. + (__cache_sysconf): Likewise. + (init_cacheinfo): Likewise. + * sysdeps/x86/cpu-features.c (get_extended_indeces): Also + populate COMMON_CPUID_INDEX_80000007 and + COMMON_CPUID_INDEX_80000008. + (get_common_indices): Also populate COMMON_CPUID_INDEX_D_ECX_1. + Use CPU_FEATURES_CPU_P (cpu_features, XSAVEC) to check if + XSAVEC is available. Set the bit_arch_XXX_Usable bits. + (init_cpu_features): Use _Static_assert on + index_arch_Fast_Unaligned_Load. + __get_cpuid_registers and __get_arch_feature. Updated for + cpu_features_basic. Set stepping in cpu_features. + * sysdeps/x86/cpu-features.h: (FEATURE_INDEX_1): Changed to enum. + (FEATURE_INDEX_2): New. + (FEATURE_INDEX_MAX): Changed to enum. + (COMMON_CPUID_INDEX_D_ECX_1): New. + (COMMON_CPUID_INDEX_80000007): Likewise. + (COMMON_CPUID_INDEX_80000008): Likewise. + (cpuid_registers): Likewise. + (cpu_features_basic): Likewise. + (CPU_FEATURE_USABLE): Likewise. + (bit_arch_XXX_Usable): Likewise. + (cpu_features): Use cpuid_registers and cpu_features_basic. + (bit_arch_XXX): Reweritten. + (bit_cpu_XXX): Likewise. + (index_cpu_XXX): Likewise. + (reg_XXX): Likewise. + * sysdeps/x86/tst-get-cpu-features.c: Include <stdio.h> and + <support/check.h>. + (CHECK_CPU_FEATURE): New. + (CHECK_CPU_FEATURE_USABLE): Likewise. + (cpu_kinds): Likewise. + (do_test): Print vendor, family, model and stepping. Check + HAS_CPU_FEATURE and CPU_FEATURE_USABLE. + (TEST_FUNCTION): Removed. + Include <support/test-driver.c> instead of + "../../test-skeleton.c". + * sysdeps/x86_64/multiarch/sched_cpucount.c (__sched_cpucount): + Check POPCNT instead of POPCOUNT. + * sysdeps/x86_64/multiarch/test-multiarch.c (do_test): Likewise. + 2018-12-03 Samuel Thibault <samuel.thibault@ens-lyon.org> * scripts/gen-as-const.py (main): Avoid emitting empty line when |