patch-1.3.93 linux/arch/sparc/mm/s4ckflt.S

• Lines: 106
• Date: Thu Jan 1 02:00:00 1970
• Orig file: v1.3.92/linux/arch/sparc/mm/s4ckflt.S
• Orig date: Mon Mar 4 08:49:58 1996

diff -u --recursive --new-file v1.3.92/linux/arch/sparc/mm/s4ckflt.S linux/arch/sparc/mm/s4ckflt.S
@@ -1,105 +0,0 @@
-/* s4ckflt.S:  Quick in window kernel faults on the sun4c.
- *
- * Copyright (C) 1995 David S. Miller (davem@caipfs.rutgers.edu)
- */
-
-#include "s4clow.h"
-
-	.text
-	.align 8
-	.globl	sun4c_quick_kernel_fault
-sun4c_quick_kernel_fault:
-	sethi	%hi(REAL_PGDIR_MASK), %l5
-	and	%l7, %l5, %l7
-	sethi	%hi(C_LABEL(invalid_segment)), %l5
-	lduba	[%l7] 0x3, %l4
-	ld	[%l5 + %lo(C_LABEL(invalid_segment))], %l5
-	cmp	%l4, %l5
-	bne	segment_loaded
-	 nop
-
-	/* We need some breathing room to pull this off, save
-	 * away some globals.
-	 */
-	std	%g0, [REGSAVE_BASE + KFLTREGS + 0x00]
-	std	%g2, [REGSAVE_BASE + KFLTREGS + 0x08]
-	std	%g4, [REGSAVE_BASE + KFLTREGS + 0x10]
-	std	%g6, [REGSAVE_BASE + KFLTREGS + 0x18]
-	std	%l0, [REGSAVE_BASE + KFLTREGS + 0x20]
-	std	%l2, [REGSAVE_BASE + KFLTREGS + 0x28]
-
-	set	C_LABEL(sun4c_kfree_ring), %g1
-	ld	[%g1 + RING_NENTRIES], %g2
-	cmp	%g2, 0x0
-	be,a	pseg_steal
-	 nop
-
-	b	distribute_segmap
-	 ld	[%g1 + RING_RINGHD + MMU_ENTRY_NEXT], %g2
-
-pseg_steal:
-	/* This is the hard case. */	
-	set	C_LABEL(sun4c_kernel_ring), %g1
-	ld	[%g1 + RING_RINGHD + MMU_ENTRY_PREV], %g2
-	b	kernel_segment_cache_flush
-	 ld	[%g2 + MMU_ENTRY_VADDR], %l0
-
-pseg_steal_after_flush:
-	ld	[%g2 + MMU_ENTRY_VADDR], %l0
-	sethi	%hi(0x30000000), %l1
-	lduba	[%l1] 0x02, %g7
-	sethi	%hi(C_LABEL(num_contexts)), %g6
-	mov	0, %g5
-	ld	[%g6 + %lo(C_LABEL(num_contexts))], %g6
-1:
-	stba	%g5, [%l1] 0x02
-	add	%g5, 1, %g5
-	cmp	%g5, %g6
-	bl	1b
-	 stba	%l5, [%l0] 0x03
-
-	stba	%g7, [%l1] 0x02
-
-	
-
-distribute_segmap:
-	st	%l7, [%g2 + MMU_ENTRY_VADDR]
-	ldub	[%g2 + MMU_ENTRY_PSEG], %g3
-	sethi	%hi(0x30000000), %l0
-	lduba	[%l0] 0x02, %g7
-	sethi	%hi(C_LABEL(num_contexts)), %g6
-	mov	0, %g5
-	ld	[%g6 + %lo(C_LABEL(num_contexts))], %g6
-1:
-	stba	%g5, [%l0] 0x02
-	add	%g5, 1, %g5
-	cmp	%g5, %g6
-	bl	1b
-	 stba	%g3, [%l7] 0x03
-
-	stba	%g7, [%l0] 0x02
-
-segment_loaded:
-	sethi	%hi(VMALLOC_START), %l4
-	cmp	%l7, %l4
-	bge	vmalloc_kernel_fault
-	 nop
-
-
-
-
-
-vmalloc_kernel_fault:
-
-
-qkf_exit:
-	/* Fault serviced, return from trap, but reload
-	 * registers first.
-	 */
-	ldd	[REGSAVE_BASE + KFLTREGS + 0x00], %g0
-	ldd	[REGSAVE_BASE + KFLTREGS + 0x08], %g2
-	ldd	[REGSAVE_BASE + KFLTREGS + 0x10], %g4
-	ldd	[REGSAVE_BASE + KFLTREGS + 0x18], %g6
-	ldd	[REGSAVE_BASE + KFLTREGS + 0x20], %l0
-	ldd	[REGSAVE_BASE + KFLTREGS + 0x28], %l2
-