diff options
| author | Ingo Molnar <mingo@kernel.org> | 2015-04-28 10:11:24 +0200 |
|---|---|---|
| committer | Ingo Molnar <mingo@kernel.org> | 2015-05-19 15:47:57 +0200 |
| commit | 70d51eb65ddf53a00e6801c2ee541a7219e5685a (patch) | |
| tree | a8cf8ebbf48c772bbbbba7dab4c61d80065a478c /fs/drop_caches.c | |
| parent | x86/fpu, crypto x86/camellia_aesni_avx: Simplify the camellia_aesni_init() xf... (diff) | |
| download | linux-70d51eb65ddf53a00e6801c2ee541a7219e5685a.tar.xz linux-70d51eb65ddf53a00e6801c2ee541a7219e5685a.zip | |
x86/fpu, crypto x86/sha256_ssse3: Simplify the sha256_ssse3_mod_init() xfeature checks
Use the new 'cpu_has_xfeatures()' function to query AVX CPU support.
This has the following advantages to the driver:
- Decouples the driver from FPU internals: it's now only using <asm/fpu/api.h>.
- Removes detection complexity from the driver, no more raw XGETBV instruction
- Shrinks the code a bit.
- Standardizes feature name error message printouts across drivers
There are also advantages to the x86 FPU code: once all drivers
are decoupled from internals we can move them out of common
headers and we'll also be able to remove xcr.h.
Cc: Andy Lutomirski <luto@amacapital.net>
Cc: Borislav Petkov <bp@alien8.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Fenghua Yu <fenghua.yu@intel.com>
Cc: H. Peter Anvin <hpa@zytor.com>
Cc: Linus Torvalds <torvalds@linux-foundation.org>
Cc: Oleg Nesterov <oleg@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Ingo Molnar <mingo@kernel.org>
Diffstat (limited to 'fs/drop_caches.c')
0 files changed, 0 insertions, 0 deletions