redonkable/alistair23-linux
redonkable/alistair23-linux
1
0
Fork 0
Code Releases Activity

sh: Apply the sleazy FPU changes for SH-2A FPU as well.

Browse source 
This plugs in the fpu_counter manipulation for the SH-2A side also.

Signed-off-by: Paul Mundt <lethal@linux-sh.org>
This commit is contained in:
Paul Mundt 2009-11-24 17:56:17 +09:00
parent d3ea9fa0a5
commit 0f09e197a3
1 changed files with 12 additions and 4 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

16
arch/sh/kernel/cpu/sh2a/fpu.c
View file

@ -608,18 +608,18 @@ BUILD_TRAP_HANDLER(fpu_error)
force_sig(SIGFPE, tsk);
}
BUILD_TRAP_HANDLER(fpu_state_restore)
void fpu_state_restore(struct pt_regs *regs)
{
struct task_struct *tsk = current;
TRAP_HANDLER_DECL;
grab_fpu(regs);
if (!user_mode(regs)) {
if (unlikely(!user_mode(regs))) {
printk(KERN_ERR "BUG: FPU is used in kernel mode.\n");
BUG();
return;
}
if (used_math()) {
if (likely(used_math())) {
/* Using the FPU again. */
restore_fpu(tsk);
} else {
@ -628,4 +628,12 @@ BUILD_TRAP_HANDLER(fpu_state_restore)
set_used_math();
}
task_thread_info(tsk)->status |= TS_USEDFPU;
tsk->fpu_counter++;
}
BUILD_TRAP_HANDLER(fpu_state_restore)
{
TRAP_HANDLER_DECL;
fpu_state_restore(regs);
}