mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-12-09 23:26:39 +07:00
x86/fpu: Use 'struct fpu' in __fpu_save()
Migrate this function to pure 'struct fpu' usage. Reviewed-by: Borislav Petkov <bp@alien8.de> Cc: Andy Lutomirski <luto@amacapital.net> Cc: Dave Hansen <dave.hansen@linux.intel.com> Cc: Fenghua Yu <fenghua.yu@intel.com> Cc: H. Peter Anvin <hpa@zytor.com> Cc: Linus Torvalds <torvalds@linux-foundation.org> Cc: Oleg Nesterov <oleg@redhat.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Thomas Gleixner <tglx@linutronix.de> Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
parent
2d75bcf314
commit
a4d8fc2e06
@ -125,15 +125,15 @@ void __kernel_fpu_end(void)
|
||||
}
|
||||
EXPORT_SYMBOL(__kernel_fpu_end);
|
||||
|
||||
static void __save_fpu(struct task_struct *tsk)
|
||||
static void __save_fpu(struct fpu *fpu)
|
||||
{
|
||||
if (use_xsave()) {
|
||||
if (unlikely(system_state == SYSTEM_BOOTING))
|
||||
xsave_state_booting(&tsk->thread.fpu.state->xsave);
|
||||
xsave_state_booting(&fpu->state->xsave);
|
||||
else
|
||||
xsave_state(&tsk->thread.fpu.state->xsave);
|
||||
xsave_state(&fpu->state->xsave);
|
||||
} else {
|
||||
fpu_fxsave(&tsk->thread.fpu);
|
||||
fpu_fxsave(fpu);
|
||||
}
|
||||
}
|
||||
|
||||
@ -151,7 +151,7 @@ void fpu__save(struct task_struct *tsk)
|
||||
preempt_disable();
|
||||
if (fpu->has_fpu) {
|
||||
if (use_eager_fpu()) {
|
||||
__save_fpu(tsk);
|
||||
__save_fpu(fpu);
|
||||
} else {
|
||||
fpu_save_init(fpu);
|
||||
__thread_fpu_end(fpu);
|
||||
@ -231,17 +231,17 @@ EXPORT_SYMBOL_GPL(fpstate_free);
|
||||
*/
|
||||
static void fpu_copy(struct task_struct *dst, struct task_struct *src)
|
||||
{
|
||||
struct fpu *dst_fpu = &dst->thread.fpu;
|
||||
struct fpu *src_fpu = &src->thread.fpu;
|
||||
|
||||
WARN_ON(src != current);
|
||||
|
||||
if (use_eager_fpu()) {
|
||||
memset(&dst->thread.fpu.state->xsave, 0, xstate_size);
|
||||
__save_fpu(dst);
|
||||
__save_fpu(dst_fpu);
|
||||
} else {
|
||||
struct fpu *dfpu = &dst->thread.fpu;
|
||||
struct fpu *sfpu = &src->thread.fpu;
|
||||
|
||||
fpu__save(src);
|
||||
memcpy(dfpu->state, sfpu->state, xstate_size);
|
||||
memcpy(dst_fpu->state, src_fpu->state, xstate_size);
|
||||
}
|
||||
}
|
||||
|
||||
|
Loading…
Reference in New Issue
Block a user