Commit 18272370 authored by Daniel Hellstrom's avatar Daniel Hellstrom Committed by David S. Miller
Browse files

sparc32: removed unused code, implemented by generic code 



Signed-off-by: default avatarDaniel Hellstrom <daniel@gaisler.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent eb485d64

arch/sparc/lib/Makefile

+0 −1
Original line number Diff line number Diff line
@@ -15,7 +15,6 @@ lib-$(CONFIG_SPARC32) += divdi3.o udivdi3.o 
lib-$(CONFIG_SPARC32) += copy_user.o locks.o

lib-y                 += atomic_$(BITS).o

lib-$(CONFIG_SPARC32) += lshrdi3.o ashldi3.o

lib-$(CONFIG_SPARC32) += rwsem_32.o

lib-$(CONFIG_SPARC32) += muldi3.o bitext.o cmpdi2.o



lib-$(CONFIG_SPARC64) += copy_page.o clear_page.o bzero.o

arch/sparc/lib/rwsem_32.S

deleted100644 → 0
+0 −204
Original line number Diff line number Diff line 
/*

 * Assembly part of rw semaphores.

 *

 * Copyright (C) 1999 Jakub Jelinek (jakub@redhat.com)

 */



#include <asm/ptrace.h>

#include <asm/psr.h>



	.section .sched.text, "ax"

	.align	4



	.globl		___down_read

___down_read:

	rd		%psr, %g3

	nop

	nop

	nop

	or		%g3, PSR_PIL, %g7

	wr		%g7, 0, %psr

	nop

	nop

	nop

#ifdef CONFIG_SMP

1:	ldstub		[%g1 + 4], %g7

	tst		%g7

	bne		1b

	 ld		[%g1], %g7

	sub		%g7, 1, %g7

	st		%g7, [%g1]

	stb		%g0, [%g1 + 4]

#else

	ld		[%g1], %g7

	sub		%g7, 1, %g7

	st		%g7, [%g1]

#endif

	wr		%g3, 0, %psr

	add		%g7, 1, %g7

	nop

	nop

	subcc		%g7, 1, %g7

	bneg		3f

	 nop

2:	jmpl		%o7, %g0

	 mov		%g4, %o7

3:	save		%sp, -64, %sp

	mov		%g1, %l1

	mov		%g4, %l4

	bcs		4f

	 mov		%g5, %l5

	call		down_read_failed

	 mov		%l1, %o0

	mov		%l1, %g1

	mov		%l4, %g4

	ba		___down_read

	 restore	%l5, %g0, %g5

4:	call		down_read_failed_biased

	 mov		%l1, %o0

	mov		%l1, %g1

	mov		%l4, %g4

	ba		2b

	 restore	%l5, %g0, %g5



	.globl		___down_write

___down_write:

	rd		%psr, %g3

	nop

	nop

	nop

	or		%g3, PSR_PIL, %g7

	wr		%g7, 0, %psr

	sethi		%hi(0x01000000), %g2

	nop

	nop

#ifdef CONFIG_SMP

1:	ldstub		[%g1 + 4], %g7

	tst		%g7

	bne		1b

	 ld		[%g1], %g7

	sub		%g7, %g2, %g7

	st		%g7, [%g1]

	stb		%g0, [%g1 + 4]

#else

	ld		[%g1], %g7

	sub		%g7, %g2, %g7

	st		%g7, [%g1]

#endif

	wr		%g3, 0, %psr

	add		%g7, %g2, %g7

	nop

	nop

	subcc		%g7, %g2, %g7

	bne		3f

	 nop

2:	jmpl		%o7, %g0

	 mov		%g4, %o7

3:	save		%sp, -64, %sp

	mov		%g1, %l1

	mov		%g4, %l4

	bcs		4f

	 mov		%g5, %l5

	call		down_write_failed

	 mov		%l1, %o0

	mov		%l1, %g1

	mov		%l4, %g4

	ba		___down_write

	 restore	%l5, %g0, %g5

4:	call		down_write_failed_biased

	 mov		%l1, %o0

	mov		%l1, %g1

	mov		%l4, %g4

	ba		2b

	 restore	%l5, %g0, %g5



	.text

	.globl		___up_read

___up_read:

	rd		%psr, %g3

	nop

	nop

	nop

	or		%g3, PSR_PIL, %g7

	wr		%g7, 0, %psr

	nop

	nop

	nop

#ifdef CONFIG_SMP

1:	ldstub		[%g1 + 4], %g7

	tst		%g7

	bne		1b

	 ld		[%g1], %g7

	add		%g7, 1, %g7

	st		%g7, [%g1]

	stb		%g0, [%g1 + 4]

#else

	ld		[%g1], %g7

	add		%g7, 1, %g7

	st		%g7, [%g1]

#endif

	wr		%g3, 0, %psr

	nop

	nop

	nop

	cmp		%g7, 0

	be		3f

	 nop

2:	jmpl		%o7, %g0

	 mov		%g4, %o7

3:	save		%sp, -64, %sp

	mov		%g1, %l1

	mov		%g4, %l4

	mov		%g5, %l5

	clr		%o1

	call		__rwsem_wake

	 mov		%l1, %o0

	mov		%l1, %g1

	mov		%l4, %g4

	ba		2b

	 restore	%l5, %g0, %g5



	.globl		___up_write

___up_write:

	rd		%psr, %g3

	nop

	nop

	nop

	or		%g3, PSR_PIL, %g7

	wr		%g7, 0, %psr

	sethi		%hi(0x01000000), %g2

	nop

	nop

#ifdef CONFIG_SMP

1:	ldstub		[%g1 + 4], %g7

	tst		%g7

	bne		1b

	 ld		[%g1], %g7

	add		%g7, %g2, %g7

	st		%g7, [%g1]

	stb		%g0, [%g1 + 4]

#else

	ld		[%g1], %g7

	add		%g7, %g2, %g7

	st		%g7, [%g1]

#endif

	wr		%g3, 0, %psr

	sub		%g7, %g2, %g7

	nop

	nop

	addcc		%g7, %g2, %g7

	bcs		3f

	 nop

2:	jmpl		%o7, %g0

	 mov		%g4, %o7

3:	save		%sp, -64, %sp

	mov		%g1, %l1

	mov		%g4, %l4

	mov		%g5, %l5

	mov		%g7, %o1

	call		__rwsem_wake

	 mov		%l1, %o0

	mov		%l1, %g1

	mov		%l4, %g4

	ba		2b

	 restore	%l5, %g0, %g5