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| author | Avi Kivity <avi@redhat.com> | 2010-05-06 11:45:46 +0300 |
|---|---|---|
| committer | H. Peter Anvin <hpa@zytor.com> | 2010-05-10 10:48:55 -0700 |
| commit | 86603283326c9e95e5ad4e9fdddeec93cac5d9ad (patch) | |
| tree | 1a26a37434e920f9519b547814a1a9af35022de8 /arch/x86/math-emu | |
| parent | c9ad488289144ae5ef53b012e15895ef1f5e4bb6 (diff) | |
| download | op-kernel-dev-86603283326c9e95e5ad4e9fdddeec93cac5d9ad.zip op-kernel-dev-86603283326c9e95e5ad4e9fdddeec93cac5d9ad.tar.gz | |
x86: Introduce 'struct fpu' and related API
Currently all fpu state access is through tsk->thread.xstate. Since we wish
to generalize fpu access to non-task contexts, wrap the state in a new
'struct fpu' and convert existing access to use an fpu API.
Signal frame handlers are not converted to the API since they will remain
task context only things.
Signed-off-by: Avi Kivity <avi@redhat.com>
Acked-by: Suresh Siddha <suresh.b.siddha@intel.com>
LKML-Reference: <1273135546-29690-3-git-send-email-avi@redhat.com>
Signed-off-by: H. Peter Anvin <hpa@zytor.com>
Diffstat (limited to 'arch/x86/math-emu')
| -rw-r--r-- | arch/x86/math-emu/fpu_aux.c | 6 |
1 files changed, 3 insertions, 3 deletions
diff --git a/arch/x86/math-emu/fpu_aux.c b/arch/x86/math-emu/fpu_aux.c index aa09870..62797f9 100644 --- a/arch/x86/math-emu/fpu_aux.c +++ b/arch/x86/math-emu/fpu_aux.c @@ -30,10 +30,10 @@ static void fclex(void) } /* Needs to be externally visible */ -void finit_task(struct task_struct *tsk) +void finit_soft_fpu(struct i387_soft_struct *soft) { - struct i387_soft_struct *soft = &tsk->thread.xstate->soft; struct address *oaddr, *iaddr; + memset(soft, 0, sizeof(*soft)); soft->cwd = 0x037f; soft->swd = 0; soft->ftop = 0; /* We don't keep top in the status word internally. */ @@ -52,7 +52,7 @@ void finit_task(struct task_struct *tsk) void finit(void) { - finit_task(current); + finit_task(¤t->thread.fpu); } /* |
