patch-2.1.127 linux/arch/sparc64/lib/locks.S

• Lines: 77
• Date: Wed Dec 31 16:00:00 1969
• Orig file: v2.1.126/linux/arch/sparc64/lib/locks.S
• Orig date: Sat Aug 16 09:51:09 1997

diff -u --recursive --new-file v2.1.126/linux/arch/sparc64/lib/locks.S linux/arch/sparc64/lib/locks.S
@@ -1,76 +0,0 @@
-/* $Id: locks.S,v 1.5 1997/07/31 05:28:16 davem Exp $
- * locks.S: SMP low-level lock primitives on Sparc64.
- *
- * Copyright (C) 1996 David S. Miller (davem@caip.rutgers.edu)
- */
-
-#include <asm/asm_offsets.h>
-#include <asm/ptrace.h>
-#include <asm/smp.h>
-
-	.text
-	.align		32
-
-___lk_busy_spin:
-	ldub		[%g1 + 0], %g2
-	brnz,pt		%g2, ___lk_busy_spin
-	 membar		#LoadLoad
-	b,pt		%xcc, 1f
-	 ldstub		[%g1 + 0], %g2
-
-	.globl		___lock_kernel
-___lock_kernel:
-	addcc		%g2, -1, %g2
-	rdpr		%pil, %g3
-	bcs,a,pn	%icc, 9f
-	 stw		%g2, [%g6 + AOFF_task_lock_depth]
-	wrpr		%g0, 15, %pil
-	ldstub		[%g1 + 0], %g2
-1:	brnz,pn		%g2, ___lk_busy_spin
-	 membar		#StoreLoad | #StoreStore
-	lduw		[%g6 + AOFF_task_processor], %g2
-	stb		%g2, [%g1 + 1]
-2:	mov		-1, %g2
-	stw		%g2, [%g6 + AOFF_task_lock_depth]
-	wrpr		%g3, 0, %pil
-9:	jmpl		%o7 + 0x8, %g0
-	 mov		%g5, %o7
-
-	.globl		___lock_reacquire_kernel
-___lock_reacquire_kernel:
-	rdpr		%pil, %g3
-	wrpr		%g0, 15, %pil
-	stw		%g2, [%g6 + AOFF_task_lock_depth]
-	ldstub		[%g1 + 0], %g2
-1:	brz,pt		%g2, 3f
-	 membar		#StoreLoad | #StoreStore
-2:	ldub		[%g1 + 0], %g2
-	brnz,pt		%g2, 2b
-	 membar		#LoadLoad
-	b,pt		%xcc, 1b
-	 ldstub		[%g1 + 0], %g2
-3:	lduw		[%g6 + AOFF_task_processor], %g2
-	stb		%g2, [%g1 + 1]
-	wrpr		%g3, 0, %pil
-	jmpl		%o7 + 0x8, %g0
-	 mov		%g5, %o7
-
-#undef NO_PROC_ID
-#define NO_PROC_ID	0xff
-
-	.globl		___unlock_kernel
-___unlock_kernel:
-	addcc		%g2, 1, %g2
-	rdpr		%pil, %g3
-	bne,a,pn	%icc, 1f
-	 stw		%g2, [%g6 + AOFF_task_lock_depth]
-	wrpr		15, %pil
-	mov		NO_PROC_ID, %g2
-	stb		%g2, [%g1 + 1]
-	membar		#StoreStore | #LoadStore
-	stb		%g0, [%g1 + 0]
-	stw		%g0, [%g6 + AOFF_task_lock_depth]
-	wrpr		%g3, 0, %pil
-1:	jmpl		%o7 + 0x8, %g0
-	 mov		%g5, %o7
-