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/process.c | |
| parent | 304bceda6a18ae0b0240b8aac9a6bdf8ce2d2469 (diff) | |
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/process.c')
| -rw-r--r-- | arch/x86/kernel/process.c | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/arch/x86/kernel/process.c b/arch/x86/kernel/process.c index c21e30f8923b..dc3567e083f9 100644 --- a/arch/x86/kernel/process.c +++ b/arch/x86/kernel/process.c @@ -156,7 +156,7 @@ void flush_thread(void) * Free the FPU state for non xsave platforms. They get reallocated * lazily at the first use. */ - if (!use_xsave()) + if (!use_eager_fpu()) free_thread_xstate(tsk); } |