patch-2.4.22 linux-2.4.22/arch/mips64/mm/tlb-glue-sb1.S

• Lines: 67
• Date: 2003-08-25 04:44:40.000000000 -0700
• Orig file: linux-2.4.21/arch/mips64/mm/tlb-glue-sb1.S
• Orig date: 1969-12-31 16:00:00.000000000 -0800

diff -urN linux-2.4.21/arch/mips64/mm/tlb-glue-sb1.S linux-2.4.22/arch/mips64/mm/tlb-glue-sb1.S
@@ -0,0 +1,66 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 1999 Ralf Baechle
+ * Copyright (C) 1999 Silicon Graphics, Inc.
+ */
+#include <linux/init.h>
+#include <asm/mipsregs.h>
+#include <asm/page.h>
+#include <asm/regdef.h>
+#include <asm/stackframe.h>
+#include <asm/war.h>
+
+	.macro	__BUILD_cli
+	CLI
+	.endm
+
+	.macro	__BUILD_sti
+	STI
+	.endm
+
+	.macro	__BUILD_kmode
+	KMODE
+	.endm
+
+	.macro	tlb_handler name interruptible writebit
+	NESTED(__\name, PT_SIZE, sp)
+	SAVE_ALL
+	dmfc0	a2, CP0_BADVADDR
+	__BUILD_\interruptible
+	li	a1, \writebit
+	sd	a2, PT_BVADDR(sp)
+	move	a0, sp
+	jal	do_page_fault
+	j	ret_from_exception
+	END(__\name)
+	.endm
+
+	.macro	tlb_handler_m3 name interruptible writebit
+	NESTED(__\name, PT_SIZE, sp)
+	dmfc0	k0, CP0_BADVADDR
+	dmfc0	k1, CP0_ENTRYHI
+	xor	k0, k1
+	dsrl	k0, k0, PAGE_SHIFT + 1
+	bnez	k0, 1f
+	SAVE_ALL
+	dmfc0	a2, CP0_BADVADDR
+	__BUILD_\interruptible
+	li	a1, \writebit
+	sd	a2, PT_BVADDR(sp)
+	move	a0, sp
+	jal	do_page_fault
+1:
+	j	ret_from_exception
+	END(__\name)
+	.endm
+
+	tlb_handler	xtlb_mod kmode 1
+#if BCM1250_M3_WAR
+	tlb_handler_m3	xtlb_tlbl kmode 0
+#else
+	tlb_handler	xtlb_tlbl kmode 0
+#endif
+	tlb_handler	xtlb_tlbs kmode 1