diff options
| author |   Peter Zijlstra <peterz@infradead.org> | 2021-11-15 17:46:39 +0100 |
|---|---|---|
| committer | Peter Zijlstra <peterz@infradead.org> | 2021-12-11 09:09:45 +0100 |
| commit | c6dbd3e5e69cf3ca47a3864115d4cbdd44619243 (patch) | |
| tree | 1b0c415e73a50ff8f0e036856c325ceccf0db483 /arch/x86/include/asm/mmx.h | |
| parent | bitfield.h: Fix "type of reg too small for mask" test (diff) | |
| download | wireguard-linux-c6dbd3e5e69cf3ca47a3864115d4cbdd44619243.tar.xz wireguard-linux-c6dbd3e5e69cf3ca47a3864115d4cbdd44619243.zip | |
x86/mmx_32: Remove X86_USE_3DNOW
This code puts an exception table entry on the PREFETCH instruction to
overwrite it with a JMP.d8 when it triggers an exception. Except of
course, our code is no longer writable, also SMP.
Instead of fixing this broken mess, simply take it out.
Signed-off-by: Peter Zijlstra (Intel) <peterz@infradead.org>
Acked-by: Borislav Petkov <bp@suse.de>
Link: https://lkml.kernel.org/r/YZKQzUmeNuwyvZpk@hirez.programming.kicks-ass.net
Diffstat (limited to 'arch/x86/include/asm/mmx.h')
| -rw-r--r-- | arch/x86/include/asm/mmx.h | 15 |
1 files changed, 0 insertions, 15 deletions
diff --git a/arch/x86/include/asm/mmx.h b/arch/x86/include/asm/mmx.h index f572d0f944bb..e69de29bb2d1 100644 --- a/arch/x86/include/asm/mmx.h +++ b/arch/x86/include/asm/mmx.h @@ -1,15 +0,0 @@ -/* SPDX-License-Identifier: GPL-2.0 */ -#ifndef _ASM_X86_MMX_H -#define _ASM_X86_MMX_H - -/* - * MMX 3Dnow! helper operations - */ - -#include <linux/types.h> - -extern void *_mmx_memcpy(void *to, const void *from, size_t size); -extern void mmx_clear_page(void *page); -extern void mmx_copy_page(void *to, void *from); - -#endif /* _ASM_X86_MMX_H */ |