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https://github.com/AuxXxilium/linux_dsm_epyc7002.git
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9f876d6766
The current implementation of __save_fpu():
if (use_xsave()) {
xsave_state(&fpu->state.xsave);
} else {
fpu_fxsave(fpu);
}
Is actually a simplified version of copy_fpregs_to_fpstate(),
if use_eager_fpu() is true.
But all call sites of __save_fpu() call it only it when use_eager_fpu()
is true.
So we can eliminate __save_fpu() altogether and use the standard
copy_fpregs_to_fpstate() function. This cleans up the code
by making it use fewer variants of FPU register saving.
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>
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|---|---|---|
| .. | ||
| bugs.c | ||
| core.c | ||
| init.c | ||
| Makefile | ||
| xsave.c | ||