patch-2.1.29 linux/arch/sparc64/lib/blockops.S

• Lines: 96
• Date: Wed Mar 5 17:04:31 1997
• Orig file: v2.1.28/linux/arch/sparc64/lib/blockops.S
• Orig date: Mon Dec 30 01:59:59 1996

diff -u --recursive --new-file v2.1.28/linux/arch/sparc64/lib/blockops.S linux/arch/sparc64/lib/blockops.S
@@ -1,4 +1,4 @@
-/* $Id: blockops.S,v 1.1 1996/12/22 07:42:15 davem Exp $
+/* $Id: blockops.S,v 1.3 1997/02/25 20:00:10 jj Exp $
  * arch/sparc64/lib/blockops.S: UltraSparc block zero optimized routines.
  *
  * Copyright (C) 1996 David S. Miller ([email protected])
@@ -6,16 +6,15 @@
 
 #include <asm/asi.h>
 
-	/* Zero out 64 bytes of memory at (buf + offset). */
+/* FIXME: Write this. */
+#define BZERO_TEST
+
+	/* Zero out 256 bytes of memory at (buf + offset). */
 #define BLAST_BLOCK(buf, offset)				\
-	stx		%g0, [buf + offset + 0x38];		\
-	stx		%g0, [buf + offset + 0x30];		\
-	stx		%g0, [buf + offset + 0x28];		\
-	stx		%g0, [buf + offset + 0x20];		\
-	stx		%g0, [buf + offset + 0x18];		\
-	stx		%g0, [buf + offset + 0x10];		\
-	stx		%g0, [buf + offset + 0x08];		\
-	stx		%g0, [buf + offset + 0x00];
+	stda		%f48, [buf + offset + 0x00] %asi;	\
+	stda		%f48, [buf + offset + 0x40] %asi;	\
+	stda		%f48, [buf + offset + 0x80] %asi;	\
+	stda		%f48, [buf + offset + 0xc0] %asi;	\
 
 	/* Copy 32 bytes of memory at (src + offset) to
 	 * (dst + offset).
@@ -33,41 +32,45 @@
 	.text
 	.align	4
 
-	.globl	C_LABEL(bzero_2page), C_LABEL(bzero_1page)
-C_LABEL(bzero_2page):
+	.globl		bzero_2page, bzero_1page
+bzero_2page:
 	/* %o0 = buf */
-	or		%o0, %g0, %o1
-	or		%g0, 0x40, %g2
+	mov		%o0, %o1
+	wr		%g0, ASI_BLK_P, %asi
+	mov		0x10, %g2
+	BZERO_TEST
 1:
-	BLAST_BLOCK(%o0, 0x00)
-	BLAST_BLOCK(%o0, 0x40)
-	BLAST_BLOCK(%o0, 0x80)
-	BLAST_BLOCK(%o0, 0xc0)
+	BLAST_BLOCK(%o0, 0x000)
+	BLAST_BLOCK(%o0, 0x100)
+	BLAST_BLOCK(%o0, 0x200)
+	BLAST_BLOCK(%o0, 0x300)
 	subcc		%g2, 1, %g2
 	bne,pt		%icc, 1b
-	 add		%o0, 0x100, %o0
+	 add		%o0, 0x400, %o0
 
 	retl
 	 mov		%o1, %o0
 
-C_LABEL(bzero_1page):
+bzero_1page:
 	/* %o0 = buf */
-	or		%o0, %g0, %o1
-	or		%g0, 0x20, %g2
+	mov		%o0, %o1
+	wr		%g0, ASI_BLK_P, %asi
+	mov		0x08, %g2
+	BZERO_TEST
 1:
-	BLAST_BLOCK(%o0, 0x00)
-	BLAST_BLOCK(%o0, 0x40)
-	BLAST_BLOCK(%o0, 0x80)
-	BLAST_BLOCK(%o0, 0xc0)
+	BLAST_BLOCK(%o0, 0x000)
+	BLAST_BLOCK(%o0, 0x100)
+	BLAST_BLOCK(%o0, 0x200)
+	BLAST_BLOCK(%o0, 0x300)
 	subcc		%g2, 1, %g2
 	bne,pt		%icc, 1b
-	 add		%o0, 0x100, %o0
+	 add		%o0, 0x400, %o0
 
 	retl
 	 mov		%o1, %o0
 
-	.globl	C_LABEL(__copy_1page)
-C_LABEL(__copy_1page):
+	.globl		__copy_1page
+__copy_1page:
 	/* %o0 = dst, %o1 = src */
 	or		%g0, 0x10, %g1
 1: