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authorLinus Torvalds <torvalds@linux-foundation.org>2010-05-18 08:58:16 -0700
committerLinus Torvalds <torvalds@linux-foundation.org>2010-05-18 08:58:16 -0700
commit41d59102e146a4423a490b8eca68a5860af4fe1c (patch)
tree739ed4113ccdaeb33d1723a6beab09c1e18d7048 /arch/x86/math-emu
parent3e1dd193edefd2a806a0ba6cf0879cf1a95217da (diff)
parentc9775b4cc522e5f1b40b1366a993f0f05f600f39 (diff)
downloadlinux-2.6.34-ux500-41d59102e146a4423a490b8eca68a5860af4fe1c.tar.gz
Merge branch 'x86-fpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip
* 'x86-fpu-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/linux-2.6-tip: x86, fpu: Use static_cpu_has() to implement use_xsave() x86: Add new static_cpu_has() function using alternatives x86, fpu: Use the proper asm constraint in use_xsave() x86, fpu: Unbreak FPU emulation x86: Introduce 'struct fpu' and related API x86: Eliminate TS_XSAVE x86-32: Don't set ignore_fpu_irq in simd exception x86: Merge kernel_math_error() into math_error() x86: Merge simd_math_error() into math_error() x86-32: Rework cache flush denied handler Fix trivial conflict in arch/x86/kernel/process.c
Diffstat (limited to 'arch/x86/math-emu')
-rw-r--r--arch/x86/math-emu/fpu_aux.c6
-rw-r--r--arch/x86/math-emu/fpu_entry.c4
-rw-r--r--arch/x86/math-emu/fpu_system.h2
3 files changed, 6 insertions, 6 deletions
diff --git a/arch/x86/math-emu/fpu_aux.c b/arch/x86/math-emu/fpu_aux.c
index aa098708877..dc8adad10a2 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_soft_fpu(&current->thread.fpu.state->soft);
}
/*
diff --git a/arch/x86/math-emu/fpu_entry.c b/arch/x86/math-emu/fpu_entry.c
index 5d87f586f8d..7718541541d 100644
--- a/arch/x86/math-emu/fpu_entry.c
+++ b/arch/x86/math-emu/fpu_entry.c
@@ -681,7 +681,7 @@ int fpregs_soft_set(struct task_struct *target,
unsigned int pos, unsigned int count,
const void *kbuf, const void __user *ubuf)
{
- struct i387_soft_struct *s387 = &target->thread.xstate->soft;
+ struct i387_soft_struct *s387 = &target->thread.fpu.state->soft;
void *space = s387->st_space;
int ret;
int offset, other, i, tags, regnr, tag, newtop;
@@ -733,7 +733,7 @@ int fpregs_soft_get(struct task_struct *target,
unsigned int pos, unsigned int count,
void *kbuf, void __user *ubuf)
{
- struct i387_soft_struct *s387 = &target->thread.xstate->soft;
+ struct i387_soft_struct *s387 = &target->thread.fpu.state->soft;
const void *space = s387->st_space;
int ret;
int offset = (S387->ftop & 7) * 10, other = 80 - offset;
diff --git a/arch/x86/math-emu/fpu_system.h b/arch/x86/math-emu/fpu_system.h
index 50fa0ec2c8a..2c614410a5f 100644
--- a/arch/x86/math-emu/fpu_system.h
+++ b/arch/x86/math-emu/fpu_system.h
@@ -31,7 +31,7 @@
#define SEG_EXPAND_DOWN(s) (((s).b & ((1 << 11) | (1 << 10))) \
== (1 << 10))
-#define I387 (current->thread.xstate)
+#define I387 (current->thread.fpu.state)
#define FPU_info (I387->soft.info)
#define FPU_CS (*(unsigned short *) &(FPU_info->regs->cs))