patch-2.3.35 linux/arch/sparc/mm/tsunami.S

• Lines: 92
• Date: Mon Dec 20 22:05:52 1999
• Orig file: v2.3.34/linux/arch/sparc/mm/tsunami.S
• Orig date: Tue Aug 31 17:29:13 1999

diff -u --recursive --new-file v2.3.34/linux/arch/sparc/mm/tsunami.S linux/arch/sparc/mm/tsunami.S
@@ -1,4 +1,4 @@
-/* $Id: tsunami.S,v 1.2 1999/08/14 03:51:48 anton Exp $
+/* $Id: tsunami.S,v 1.3 1999/10/09 05:32:19 zaitcev Exp $
  * tsunami.S: High speed MicroSparc-I mmu/cache operations.
  *
  * Copyright (C) 1997 David S. Miller (davem@caip.rutgers.edu)
@@ -44,11 +44,11 @@
 tsunami_flush_cache_all:
 	WINDOW_FLUSH(%g4, %g5)
 tsunami_flush_page_for_dma:
-	sta	%g0, [%g0] ASI_M_DC_FLCLEAR
 	sta	%g0, [%g0] ASI_M_IC_FLCLEAR
+tsunami_flush_chunk:
+	sta	%g0, [%g0] ASI_M_DC_FLCLEAR
 tsunami_flush_cache_out:
 tsunami_flush_page_to_ram:
-tsunami_flush_chunk:
 	retl
 	 nop
 
@@ -68,6 +68,11 @@
 tsunami_flush_tlb_all:
 	 mov	0x400, %o1
 	sta	%g0, [%o1] ASI_M_FLUSH_PROBE
+	nop
+	nop
+	nop
+	nop
+	nop
 tsunami_flush_tlb_out:
 	retl
 	 nop
@@ -85,6 +90,59 @@
 	 lda	[%g1] ASI_M_MMUREGS, %g5
 	sta	%o3, [%g1] ASI_M_MMUREGS
 	sta	%g0, [%o1] ASI_M_FLUSH_PROBE
+	nop
+	nop
+	nop
+	nop
+	nop
 tsunami_flush_tlb_page_out:
 	retl
 	 sta	%g5, [%g1] ASI_M_MMUREGS
+
+#define MIRROR_BLOCK(dst, src, offset, t0, t1, t2, t3) \
+	ldd	[src + offset + 0x18], t0; \
+	std	t0, [dst + offset + 0x18]; \
+	ldd	[src + offset + 0x10], t2; \
+	std	t2, [dst + offset + 0x10]; \
+	ldd	[src + offset + 0x08], t0; \
+	std	t0, [dst + offset + 0x08]; \
+	ldd	[src + offset + 0x00], t2; \
+	std	t2, [dst + offset + 0x00];
+
+	.globl	tsunami_copy_1page
+tsunami_copy_1page:
+/* NOTE: This routine has to be shorter than 70insns --jj */
+	or	%g0, (PAGE_SIZE >> 8), %g1
+1:
+	MIRROR_BLOCK(%o0, %o1, 0x00, %o2, %o3, %o4, %o5)
+	MIRROR_BLOCK(%o0, %o1, 0x20, %o2, %o3, %o4, %o5)
+	MIRROR_BLOCK(%o0, %o1, 0x40, %o2, %o3, %o4, %o5)
+	MIRROR_BLOCK(%o0, %o1, 0x60, %o2, %o3, %o4, %o5)
+	MIRROR_BLOCK(%o0, %o1, 0x80, %o2, %o3, %o4, %o5)
+	MIRROR_BLOCK(%o0, %o1, 0xa0, %o2, %o3, %o4, %o5)
+	MIRROR_BLOCK(%o0, %o1, 0xc0, %o2, %o3, %o4, %o5)
+	MIRROR_BLOCK(%o0, %o1, 0xe0, %o2, %o3, %o4, %o5)
+	subcc	%g1, 1, %g1
+	add	%o0, 0x100, %o0
+	bne	1b
+	 add	%o1, 0x100, %o1
+
+	.globl	tsunami_setup_blockops
+tsunami_setup_blockops:
+	sethi	%hi(__copy_1page), %o0
+	or	%o0, %lo(__copy_1page), %o0
+	sethi	%hi(tsunami_copy_1page), %o1
+	or	%o1, %lo(tsunami_copy_1page), %o1
+	sethi	%hi(tsunami_setup_blockops), %o2
+	or	%o2, %lo(tsunami_setup_blockops), %o2
+	ld	[%o1], %o4
+1:	add	%o1, 4, %o1
+	st	%o4, [%o0]
+	add	%o0, 4, %o0
+	cmp	%o1, %o2
+	bne	1b
+	ld	[%o1], %o4
+	sta	%g0, [%g0] ASI_M_IC_FLCLEAR
+	sta	%g0, [%g0] ASI_M_DC_FLCLEAR
+	retl
+	 nop