[tip:x86/fpu] x86, fpu: Unbreak FPU emulation

From: tip-bot for H. Peter Anvin
Date: Mon May 10 2010 - 16:40:38 EST


Commit-ID: c3f8978ea332cd4be88e12574452a025892ac9af
Gitweb: http://git.kernel.org/tip/c3f8978ea332cd4be88e12574452a025892ac9af
Author: H. Peter Anvin <hpa@xxxxxxxxx>
AuthorDate: Mon, 10 May 2010 13:37:16 -0700
Committer: H. Peter Anvin <hpa@xxxxxxxxx>
CommitDate: Mon, 10 May 2010 13:37:16 -0700

x86, fpu: Unbreak FPU emulation

Unbreak FPU emulation, broken by checkin
86603283326c9e95e5ad4e9fdddeec93cac5d9ad:
x86: Introduce 'struct fpu' and related API

Signed-off-by: H. Peter Anvin <hpa@xxxxxxxxx>
Cc: Avi Kivity <avi@xxxxxxxxxx>
Cc: Suresh Siddha <suresh.b.siddha@xxxxxxxxx>
LKML-Reference: <1273135546-29690-3-git-send-email-avi@xxxxxxxxxx>
---
arch/x86/math-emu/fpu_aux.c | 2 +-
arch/x86/math-emu/fpu_entry.c | 4 ++--
arch/x86/math-emu/fpu_system.h | 2 +-
3 files changed, 4 insertions(+), 4 deletions(-)

diff --git a/arch/x86/math-emu/fpu_aux.c b/arch/x86/math-emu/fpu_aux.c
index 62797f9..dc8adad 100644
--- a/arch/x86/math-emu/fpu_aux.c
+++ b/arch/x86/math-emu/fpu_aux.c
@@ -52,7 +52,7 @@ void finit_soft_fpu(struct i387_soft_struct *soft)

void finit(void)
{
- finit_task(&current->thread.fpu);
+ 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 5d87f58..7718541 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 50fa0ec..2c61441 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))
--
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