---

yaml
---
r: 86896
b: refs/heads/master
c: f0e98c3
h: refs/heads/master
v: v3

[refs]

@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 9a4a668240e2f9564d12347c50c3d9c5f1686a85
+refs/heads/master: f0e98c387e61de00646be31fab4c2fa0224e1efb

trunk/arch/sparc/kernel/Makefile

@@ -1,4 +1,4 @@
-# $Id: Makefile,v 1.62 2000/12/15 00:41:17 davem Exp $
+#
 # Makefile for the linux kernel.
 #
 
@@ -12,7 +12,8 @@ obj-y    := entry.o wof.o wuf.o etrap.o rtrap.o traps.o $(IRQ_OBJS) \
 	    sys_sparc.o sunos_asm.o systbls.o \
 	    time.o windows.o cpu.o devices.o sclow.o \
 	    tadpole.o tick14.o ptrace.o sys_solaris.o \
-	    unaligned.o muldiv.o semaphore.o prom.o of_device.o devres.o
+	    unaligned.o una_asm.o muldiv.o semaphore.o \
+	    prom.o of_device.o devres.o
 
 devres-y = ../../../kernel/irq/devres.o
 

trunk/arch/sparc/kernel/una_asm.S

@@ -0,0 +1,153 @@
+/* una_asm.S: Kernel unaligned trap assembler helpers.
+ *
+ * Copyright (C) 1996,2005,2008 David S. Miller (davem@davemloft.net)
+ * Copyright (C) 1996,1997 Jakub Jelinek (jj@sunsite.mff.cuni.cz)
+ */
+
+#include <linux/errno.h>
+
+	.text
+
+retl_efault:
+	retl
+	 mov	-EFAULT, %o0
+
+	/* int __do_int_store(unsigned long *dst_addr, int size,
+	 *                    unsigned long *src_val)
+	 *
+	 * %o0 = dest_addr
+	 * %o1 = size
+	 * %o2 = src_val
+	 *
+	 * Return '0' on success, -EFAULT on failure.
+	 */
+	.globl	__do_int_store
+__do_int_store:
+	ld	[%o2], %g1
+	cmp	%1, 2
+	be	2f
+	 cmp	%1, 4
+	be	1f
+	 srl	%g1, 24, %g2
+	srl	%g1, 16, %g7
+4:	stb	%g2, [%o0]
+	srl	%g1, 8, %g2
+5:	stb	%g7, [%o0 + 1]
+	ld	[%o2 + 4], %g7
+6:	stb	%g2, [%o0 + 2]
+	srl	%g7, 24, %g2
+7:	stb	%g1, [%o0 + 3]
+	srl	%g7, 16, %g1
+8:	stb	%g2, [%o0 + 4]
+	srl	%g7, 8, %g2
+9:	stb	%g1, [%o0 + 5]
+10:	stb	%g2, [%o0 + 6]
+	b	0f
+11:	 stb	%g7, [%o0 + 7]
+1:	srl	%g1, 16, %g7
+12:	stb	%g2, [%o0]
+	srl	%g1, 8, %g2
+13:	stb	%g7, [%o0 + 1]
+14:	stb	%g2, [%o0 + 2]
+	b	0f
+15:	 stb	%g1, [%o0 + 3]
+2:	srl	%g1, 8, %g2
+16:	stb	%g2, [%o0]
+17:	stb	%g1, [%o0 + 1]
+0:	retl
+	 mov	0, %o0
+
+	.section __ex_table,#alloc
+	.word	4b, retl_efault
+	.word	5b, retl_efault
+	.word	6b, retl_efault
+	.word	7b, retl_efault
+	.word	8b, retl_efault
+	.word	9b, retl_efault
+	.word	10b, retl_efault
+	.word	11b, retl_efault
+	.word	12b, retl_efault
+	.word	13b, retl_efault
+	.word	14b, retl_efault
+	.word	15b, retl_efault
+	.word	16b, retl_efault
+	.word	17b, retl_efault
+	.previous
+
+	/* int do_int_load(unsigned long *dest_reg, int size,
+	 *                 unsigned long *saddr, int is_signed)
+	 *
+	 * %o0 = dest_reg
+	 * %o1 = size
+	 * %o2 = saddr
+	 * %o3 = is_signed
+	 *
+	 * Return '0' on success, -EFAULT on failure.
+	 */
+	.globl	do_int_load
+do_int_load:
+	cmp	%o1, 8
+	be	9f
+	 cmp	%o1, 4
+	be	6f
+4:	 ldub	[%o2], %g1
+5:	ldub	[%o2 + 1], %g2
+	sll	%g1, 8, %g1
+	tst	%o3
+	be	3f
+	 or	%g1, %g2, %g1
+	sll	%g1, 16, %g1
+	sra	%g1, 16, %g1
+3:	b	0f
+	 st	%g1, [%o0]
+6:	ldub	[%o2 + 1], %g2
+	sll	%g1, 24, %g1
+7:	ldub	[%o2 + 2], %g7
+	sll	%g2, 16, %g2
+8:	ldub	[%o2 + 3], %g3
+	sll	%g7, 8, %g7
+	or	%g3, %g2, %g3
+	or	%g7, %g3, %g7
+	or	%g1, %g7, %g1
+	b	0f
+	 st	%g1, [%o0]
+9:	ldub	[%o2], %g1
+10:	ldub	[%o2 + 1], %g2
+	sll	%g1, 24, %g1
+11:	ldub	[%o2 + 2], %g7
+	sll	%g2, 16, %g2
+12:	ldub	[%o2 + 3], %g3
+	sll	%g7, 8, %g7
+	or	%g1, %g2, %g1
+	or	%g7, %g3, %g7
+	or	%g1, %g7, %g7
+13:	ldub	[%o2 + 4], %g1
+	st	%g7, [%o0]
+14:	ldub	[%o2 + 5], %g2
+	sll	%g1, 24, %g1
+15:	ldub	[%o2 + 6], %g7
+	sll	%g2, 16, %g2
+16:	ldub	[%o2 + 7], %g3
+	sll	%g7, 8, %g7
+	or	%g1, %g2, %g1
+	or	%g7, %g3, %g7
+	or	%g1, %g7, %g7
+	st	%g7, [%o0 + 4]
+0:	retl
+	 mov	0, %o0
+
+	.section __ex_table,#alloc
+	.word	4b, retl_efault
+	.word	5b, retl_efault
+	.word	6b, retl_efault
+	.word	7b, retl_efault
+	.word	8b, retl_efault
+	.word	9b, retl_efault
+	.word	10b, retl_efault
+	.word	11b, retl_efault
+	.word	12b, retl_efault
+	.word	13b, retl_efault
+	.word	14b, retl_efault
+	.word	15b, retl_efault
+	.word	16b, retl_efault
+	.previous