mirror of https://github.com/PCSX2/pcsx2.git
ReorderingMTGS: Revise memcpy_amd_qwc for Linux.
git-svn-id: http://pcsx2.googlecode.com/svn/branches/ReorderingMTGS@3484 96395faa-99c1-11dd-bbfe-3dabce05a288
This commit is contained in:
arcum42
parent
d9477ab5f4
commit
6ded71561c
|
|
@ -23,7 +23,6 @@
|
|||
extern "C" u8 memcmp_mmx(const void* src1, const void* src2, int cmpsize);
|
||||
extern "C" void memxor_mmx(void* dst, const void* src1, int cmpsize);
|
||||
|
||||
#if 0
|
||||
// This can be moved later, but Linux doesn't even compile memcpyFast.cpp, so I figured I'd stick it here for now.
|
||||
// Quadword Copy! Count is in QWCs (128 bits). Neither source nor dest need to be aligned.
|
||||
static __forceinline void memcpy_amd_qwc(void *dest, const void *src, size_t qwc)
|
||||
|
|
@ -46,30 +45,30 @@
|
|||
__asm__
|
||||
(
|
||||
".intel_syntax noprefix\n"
|
||||
"mov ecx, [%[dest]]\n"
|
||||
"mov edx, [%[src]]\n"
|
||||
"mov eax, [%[qwc]]\n" // keep a copy of count
|
||||
"shr eax, 1\n"
|
||||
//"mov ecx, [%[dest]]\n"
|
||||
//"mov edx, [%[src]]\n"
|
||||
//"mov eax, [%[qwc]]\n" // keep a copy of count
|
||||
"shr %[qwc], 1\n"
|
||||
"jz memcpy_qwc_1\n" // only one 16 byte block to copy?
|
||||
|
||||
"cmp eax, 64\n" // "IN_CACHE_COPY/32"
|
||||
"cmp %[qwc], 64\n" // "IN_CACHE_COPY/32"
|
||||
"jb memcpy_qwc_loop1\n" // small copies should be cached (definite speedup --air)
|
||||
|
||||
"memcpy_qwc_loop2:\n" // 32-byte blocks, uncached copy
|
||||
"prefetchnta [edx + 568]\n" // start reading ahead (tested: it helps! --air)
|
||||
"prefetchnta [%[src] + 568]\n" // start reading ahead (tested: it helps! --air)
|
||||
|
||||
"movq mm0,[edx+0]\n" // read 64 bits
|
||||
"movq mm1,[edx+8]\n"
|
||||
"movq mm2,[edx+16]\n"
|
||||
"movntq [ecx+0], mm0\n" // write 64 bits, bypassing the cache
|
||||
"movntq [ecx+8], mm1\n"
|
||||
"movq mm3,[edx+24]\n"
|
||||
"movntq [ecx+16], mm2\n"
|
||||
"movntq [ecx+24], mm3\n"
|
||||
"movq mm0,[%[src]+0]\n" // read 64 bits
|
||||
"movq mm1,[%[src]+8]\n"
|
||||
"movq mm2,[%[src]+16]\n"
|
||||
"movntq [%[dest]+0], mm0\n" // write 64 bits, bypassing the cache
|
||||
"movntq [%[dest]+8], mm1\n"
|
||||
"movq mm3,[%[src]+24]\n"
|
||||
"movntq [%[dest]+16], mm2\n"
|
||||
"movntq [%[dest]+24], mm3\n"
|
||||
|
||||
"add edx,32\n" // update source pointer
|
||||
"add ecx,32\n" // update destination pointer
|
||||
"sub eax,1\n"
|
||||
"add %[src],32\n" // update source pointer
|
||||
"add %[dest],32\n" // update destination pointer
|
||||
"sub %[qwc],1\n"
|
||||
"jnz memcpy_qwc_loop2\n" // last 64-byte block?
|
||||
"sfence\n" // flush the write buffer
|
||||
"jmp memcpy_qwc_1\n"
|
||||
|
|
@ -79,39 +78,38 @@
|
|||
// results in noticable speed loss!
|
||||
|
||||
"memcpy_qwc_loop1:\n"
|
||||
"prefetchnta [edx + 568]\n" // start reading ahead (tested: it helps! --air)
|
||||
"prefetchnta [%[src] + 568]\n" // start reading ahead (tested: it helps! --air)
|
||||
|
||||
"movq mm0,[edx+0]\n" // read 64 bits
|
||||
"movq mm1,[edx+8]\n"
|
||||
"movq mm2,[edx+16]\n"
|
||||
"movq [ecx+0], mm0\n" // write 64 bits, bypassing the cache
|
||||
"movq [ecx+8], mm1\n"
|
||||
"movq mm3,[edx+24]\n"
|
||||
"movq [ecx+16], mm2\n"
|
||||
"movq [ecx+24], mm3\n"
|
||||
"movq mm0,[%[src]+0]\n" // read 64 bits
|
||||
"movq mm1,[%[src]+8]\n"
|
||||
"movq mm2,[%[src]+16]\n"
|
||||
"movq [%[dest]+0], mm0\n" // write 64 bits, bypassing the cache
|
||||
"movq [%[dest]+8], mm1\n"
|
||||
"movq mm3,[%[src]+24]\n"
|
||||
"movq [%[dest]+16], mm2\n"
|
||||
"movq [%[dest]+24], mm3\n"
|
||||
|
||||
"add edx,32\n" // update source pointer
|
||||
"add ecx,32\n" // update destination pointer
|
||||
"sub eax,1\n"
|
||||
"add %[src],32\n" // update source pointer
|
||||
"add %[dest],32\n" // update destination pointer
|
||||
"sub %[qwc],1\n"
|
||||
"jnz memcpy_qwc_loop1\n" // last 64-byte block?
|
||||
|
||||
"memcpy_qwc_1:\n"
|
||||
"test [%[qwc]],dword ptr 1\n"
|
||||
"jz memcpy_qwc_final\n"
|
||||
"movq mm0,[edx]\n"
|
||||
"movq mm1,[edx+8]\n"
|
||||
"movq [ecx], mm0\n"
|
||||
"movq [ecx+8], mm1\n"
|
||||
"movq mm0,[%[src]]\n"
|
||||
"movq mm1,[%[src]+8]\n"
|
||||
"movq [%[dest]], mm0\n"
|
||||
"movq [%[dest]+8], mm1\n"
|
||||
|
||||
"memcpy_qwc_final:\n"
|
||||
"emms\n" // clean up the MMX state
|
||||
".att_syntax\n"
|
||||
: "=r"(dest), "=r"(src), "=r"(qwc)
|
||||
: [dest]"r"(dest), [src]"r"(src), [qwc]"r"(qwc)
|
||||
//: Needs a clobber list here
|
||||
: "=&r"(dest), "=&r"(src), "=&r"(qwc)
|
||||
: [dest]"0"(dest), [src]"1"(src), [qwc]"2"(qwc)
|
||||
: "memory", "mm0", "mm1", "mm2", "mm3"
|
||||
);
|
||||
}
|
||||
#endif
|
||||
#else
|
||||
|
||||
# include "win_memzero.h"
|
||||
|
|
@ -131,10 +129,5 @@ void _memset16_unaligned( void* dest, u16 data, size_t size );
|
|||
#define memcpy_const memcpy_amd_ // Memcpy with constant size
|
||||
#define memcpy_constA memcpy_amd_ // Memcpy with constant size and 16-byte aligned
|
||||
|
||||
//#define memcpy_qwc(d,s,c) memcpy_amd_qwc(d,s,c)
|
||||
#ifndef __LINUX__
|
||||
#define memcpy_qwc(d,s,c) memcpy_amd_qwc(d,s,c)
|
||||
#else
|
||||
#define memcpy_qwc(d,s,c) memcpy_amd_(d,s,c*16)
|
||||
//#define memcpy_qwc(d,s,c) memcpy_amd_qwc(d,s,c)
|
||||
#endif
|
||||
//#define memcpy_qwc(d,s,c) memcpy_amd_(d,s,c*16)
|
||||
|
|
|
|||
Loading…
Reference in New Issue