X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=arch%2Fx86_64%2Flib%2Fmemcpy.S;fp=arch%2Fx86_64%2Flib%2Fmemcpy.S;h=5554948b55549e2c7837264ce9bcae6b552e5a94;hb=43bc926fffd92024b46cafaf7350d669ba9ca884;hp=c6c46494fef50bec9f061ce6a679d017e90ac921;hpb=cee37fe97739d85991964371c1f3a745c00dd236;p=linux-2.6.git

diff --git a/arch/x86_64/lib/memcpy.S b/arch/x86_64/lib/memcpy.S
index c6c46494f..5554948b5 100644
--- a/arch/x86_64/lib/memcpy.S
+++ b/arch/x86_64/lib/memcpy.S
@@ -24,11 +24,11 @@ memcpy:
 	movl %edx,%ecx
 	shrl $6,%ecx
 	jz .Lhandle_tail
-	
+
 	.p2align 4
 .Lloop_64:
 	decl %ecx
-	
+
 	movq (%rsi),%r11
 	movq 8(%rsi),%r8
 
@@ -40,7 +40,7 @@ memcpy:
 
 	movq %r9,2*8(%rdi)
 	movq %r10,3*8(%rdi)
-		
+
 	movq 4*8(%rsi),%r11
 	movq 5*8(%rsi),%r8
 
@@ -63,10 +63,10 @@ memcpy:
 	shrl $3,%ecx
 	jz   .Lhandle_7
 	.p2align 4
-.Lloop_8: 
+.Lloop_8:
 	decl %ecx
 	movq (%rsi),%r8
-	movq %r8,(%rdi) 
+	movq %r8,(%rdi)
 	leaq 8(%rdi),%rdi
 	leaq 8(%rsi),%rsi
 	jnz  .Lloop_8
@@ -78,34 +78,34 @@ memcpy:
 	.p2align 4
 .Lloop_1:
 	movb (%rsi),%r8b
-	movb %r8b,(%rdi) 
+	movb %r8b,(%rdi)
 	incq %rdi
 	incq %rsi
 	decl %ecx
 	jnz .Lloop_1
-	
-.Lende: 	
+
+.Lende:
 	popq %rbx
 	ret
 .Lfinal:
-	
-	/* C stepping K8 run faster using the string copy instructions.
+
+	/* Some CPUs run faster using the string copy instructions.
 	   It is also a lot simpler. Use this when possible */
-	
+
 	.section .altinstructions,"a"
 	.align 8
 	.quad  memcpy
 	.quad  memcpy_c
-	.byte  X86_FEATURE_K8_C
+	.byte  X86_FEATURE_REP_GOOD
 	.byte  .Lfinal-memcpy
-	.byte  memcpy_c_end-memcpy_c	
+	.byte  memcpy_c_end-memcpy_c
 	.previous
 
 	.section .altinstr_replacement,"ax"
  /* rdi	destination
   * rsi source
   * rdx count
-  */			
+  */
 memcpy_c:
 	movq %rdi,%rax
 	movl %edx,%ecx