diff options
| author |   Suresh Siddha <suresh.b.siddha@intel.com> | 2012-09-06 14:58:52 -0700 |
|---|---|---|
| committer |   H. Peter Anvin <hpa@linux.intel.com> | 2012-09-18 15:52:22 -0700 |
| commit | 5d2bd7009f306c82afddd1ca4d9763ad8473c216 (patch) | |
| tree | 772bc888c48766b892e216c19e938c82657e2b0e /arch/x86/kernel/cpu/common.c | |
| parent | x86, fpu: use non-lazy fpu restore for processors supporting xsave (diff) | |
| download | linux-dev-5d2bd7009f306c82afddd1ca4d9763ad8473c216.tar.xz linux-dev-5d2bd7009f306c82afddd1ca4d9763ad8473c216.zip | |
x86, fpu: decouple non-lazy/eager fpu restore from xsave
Decouple non-lazy/eager fpu restore policy from the existence of the xsave
feature. Introduce a synthetic CPUID flag to represent the eagerfpu
policy. "eagerfpu=on" boot paramter will enable the policy.
Requested-by: H. Peter Anvin <hpa@zytor.com>
Requested-by: Linus Torvalds <torvalds@linux-foundation.org>
Signed-off-by: Suresh Siddha <suresh.b.siddha@intel.com>
Link: http://lkml.kernel.org/r/1347300665-6209-2-git-send-email-suresh.b.siddha@intel.com
Signed-off-by: H. Peter Anvin <hpa@linux.intel.com>
Diffstat (limited to 'arch/x86/kernel/cpu/common.c')
| -rw-r--r-- | arch/x86/kernel/cpu/common.c | 2 |
1 files changed, 0 insertions, 2 deletions
diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c index a5fbc3c5fccc..b0fe078614d8 100644 --- a/arch/x86/kernel/cpu/common.c +++ b/arch/x86/kernel/cpu/common.c @@ -1297,7 +1297,6 @@ void __cpuinit cpu_init(void) dbg_restore_debug_regs(); fpu_init(); - xsave_init(); raw_local_save_flags(kernel_eflags); @@ -1352,6 +1351,5 @@ void __cpuinit cpu_init(void) dbg_restore_debug_regs(); fpu_init(); - xsave_init(); } #endif |