patch-2.4.21 linux-2.4.21/arch/sparc/kernel/entry.S

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Lines: 579
Date: 2003-06-13 07:51:32.000000000 -0700
Orig file: linux-2.4.20/arch/sparc/kernel/entry.S
Orig date: 2001-11-13 09:16:05.000000000 -0800

diff -urN linux-2.4.20/arch/sparc/kernel/entry.S linux-2.4.21/arch/sparc/kernel/entry.S
@@ -38,6 +38,14 @@
 
 #define NR_SYSCALLS 256      /* Each OS is different... */
 
+/* These are just handy. */
+#define _SV	save	%sp, -STACKFRAME_SZ, %sp
+#define _RS     restore 
+
+#define FLUSH_ALL_KERNEL_WINDOWS \
+	_SV; _SV; _SV; _SV; _SV; _SV; _SV; \
+	_RS; _RS; _RS; _RS; _RS; _RS; _RS;
+
 /* First, KGDB low level things.  This is a rewrite
  * of the routines found in the sparc-stub.c asm() statement
  * from the gdb distribution.  This is also dual-purpose
@@ -70,11 +78,11 @@
 	/* Make sure kgdb sees the same state we just saved. */
 	LOAD_PT_GLOBALS(sp)
 	LOAD_PT_INS(sp)
-	ld	[%sp + REGWIN_SZ + PT_Y], %l4
-	ld	[%sp + REGWIN_SZ + PT_WIM], %l3
-	ld	[%sp + REGWIN_SZ + PT_PSR], %l0
-	ld	[%sp + REGWIN_SZ + PT_PC], %l1
-	ld	[%sp + REGWIN_SZ + PT_NPC], %l2
+	ld	[%sp + STACKFRAME_SZ + PT_Y], %l4
+	ld	[%sp + STACKFRAME_SZ + PT_WIM], %l3
+	ld	[%sp + STACKFRAME_SZ + PT_PSR], %l0
+	ld	[%sp + STACKFRAME_SZ + PT_PC], %l1
+	ld	[%sp + STACKFRAME_SZ + PT_NPC], %l2
 	rd	%tbr, %l5	/* Never changes... */
 
 	/* Make kgdb exception frame. */	
@@ -94,7 +102,7 @@
 	WRITE_PAUSE
 
 	call	C_LABEL(handle_exception)
-	 add	%sp, REGWIN_SZ, %o0	! Pass address of registers
+	 add	%sp, STACKFRAME_SZ, %o0	! Pass address of registers
 
 	/* Load new kgdb register set. */
 	LOAD_KGDB_GLOBALS(sp)
@@ -263,7 +271,7 @@
 	mov	11, %o0			! floppy irq level (unused anyway)
 	mov	%g0, %o1		! devid is not used in fast interrupts
 	call	C_LABEL(sparc_floppy_irq)
-	 add	%sp, REGWIN_SZ, %o2	! struct pt_regs *regs
+	 add	%sp, STACKFRAME_SZ, %o2	! struct pt_regs *regs
 
 	RESTORE_ALL
 	
@@ -312,7 +320,7 @@
 	mov	%l7, %o0		! irq level
 patch_handler_irq:
 	call	C_LABEL(handler_irq)
-	 add	%sp, REGWIN_SZ, %o1	! pt_regs ptr
+	 add	%sp, STACKFRAME_SZ, %o1	! pt_regs ptr
 	or	%l0, PSR_PIL, %g2	! restore PIL after handler_irq
 	wr	%g2, PSR_ET, %psr	! keep ET up
 	WRITE_PAUSE
@@ -329,7 +337,7 @@
 	wr	%g2, PSR_ET, %psr
 	WRITE_PAUSE
 	call	C_LABEL(smp4m_percpu_timer_interrupt)
-	 add	%sp, REGWIN_SZ, %o0
+	 add	%sp, STACKFRAME_SZ, %o0
 	wr	%l0, PSR_ET, %psr
 	WRITE_PAUSE
 	RESTORE_ALL
@@ -436,7 +444,7 @@
 	wr	%g2, PSR_ET, %psr
 	WRITE_PAUSE
 	call	C_LABEL(smp4d_percpu_timer_interrupt)
-	 add	%sp, REGWIN_SZ, %o0
+	 add	%sp, STACKFRAME_SZ, %o0
 	wr	%l0, PSR_ET, %psr
 	WRITE_PAUSE
 	RESTORE_ALL
@@ -498,7 +506,7 @@
 	wr	%l0, PSR_ET, %psr		! re-enable traps
 	WRITE_PAUSE
 
-	add	%sp, REGWIN_SZ, %o0
+	add	%sp, STACKFRAME_SZ, %o0
 	mov	%l1, %o1
 	mov	%l2, %o2
 	call	C_LABEL(do_illegal_instruction)
@@ -518,7 +526,7 @@
 	wr	%l0, PSR_ET, %psr
 	WRITE_PAUSE
 
-	add	%sp, REGWIN_SZ, %o0
+	add	%sp, STACKFRAME_SZ, %o0
 	mov	%l1, %o1
 	mov	%l2, %o2
 	call	C_LABEL(do_priv_instruction)
@@ -541,7 +549,7 @@
 
 	ld	[%l1], %o1
 	call	C_LABEL(kernel_unaligned_trap)
-	 add	%sp, REGWIN_SZ, %o0
+	 add	%sp, STACKFRAME_SZ, %o0
 
 	RESTORE_ALL
 
@@ -553,7 +561,7 @@
 
 	ld	[%l1], %o1
 	call	C_LABEL(user_unaligned_trap)
-	 add	%sp, REGWIN_SZ, %o0
+	 add	%sp, STACKFRAME_SZ, %o0
 
 	RESTORE_ALL
 
@@ -566,7 +574,7 @@
 	wr	%l0, PSR_ET, %psr		! re-enable traps
 	WRITE_PAUSE
 
-	add	%sp, REGWIN_SZ, %o0
+	add	%sp, STACKFRAME_SZ, %o0
 	mov	%l1, %o1
 	mov	%l2, %o2
 	call	C_LABEL(do_fpd_trap)
@@ -605,7 +613,7 @@
 	wr	%l0, PSR_ET, %psr		! re-enable traps
 	WRITE_PAUSE
 
-	add	%sp, REGWIN_SZ, %o0
+	add	%sp, STACKFRAME_SZ, %o0
 	mov	%l1, %o1
 	mov	%l2, %o2
 	call	C_LABEL(do_fpe_trap)
@@ -622,7 +630,7 @@
 	wr	%l0, PSR_ET, %psr		! re-enable traps
 	WRITE_PAUSE
 
-	add	%sp, REGWIN_SZ, %o0
+	add	%sp, STACKFRAME_SZ, %o0
 	mov	%l1, %o1
 	mov	%l2, %o2
 	call	C_LABEL(handle_tag_overflow)
@@ -639,7 +647,7 @@
 	wr	%l0, PSR_ET, %psr		! re-enable traps
 	WRITE_PAUSE
 
-	add	%sp, REGWIN_SZ, %o0
+	add	%sp, STACKFRAME_SZ, %o0
 	mov	%l1, %o1
 	mov	%l2, %o2
 	call	C_LABEL(handle_watchpoint)
@@ -656,7 +664,7 @@
 	wr	%l0, PSR_ET, %psr		! re-enable traps
 	WRITE_PAUSE
 
-	add	%sp, REGWIN_SZ, %o0
+	add	%sp, STACKFRAME_SZ, %o0
 	mov	%l1, %o1
 	mov	%l2, %o2
 	call	C_LABEL(handle_reg_access)
@@ -673,7 +681,7 @@
 	wr	%l0, PSR_ET, %psr		! re-enable traps
 	WRITE_PAUSE
 
-	add	%sp, REGWIN_SZ, %o0
+	add	%sp, STACKFRAME_SZ, %o0
 	mov	%l1, %o1
 	mov	%l2, %o2
 	call	C_LABEL(handle_cp_disabled)
@@ -690,7 +698,7 @@
 	wr	%l0, PSR_ET, %psr		! re-enable traps
 	WRITE_PAUSE
 
-	add	%sp, REGWIN_SZ, %o0
+	add	%sp, STACKFRAME_SZ, %o0
 	mov	%l1, %o1
 	mov	%l2, %o2
 	call	C_LABEL(handle_cp_exception)
@@ -707,7 +715,7 @@
 	wr	%l0, PSR_ET, %psr		! re-enable traps
 	WRITE_PAUSE
 
-	add	%sp, REGWIN_SZ, %o0
+	add	%sp, STACKFRAME_SZ, %o0
 	mov	%l1, %o1
 	mov	%l2, %o2
 	call	C_LABEL(handle_hw_divzero)
@@ -731,10 +739,10 @@
 	 nop
 
 	/* Advance over the trap instruction. */
-	ld	[%sp + REGWIN_SZ + PT_NPC], %l1
+	ld	[%sp + STACKFRAME_SZ + PT_NPC], %l1
 	add	%l1, 0x4, %l2
-	st	%l1, [%sp + REGWIN_SZ + PT_PC]
-	st	%l2, [%sp + REGWIN_SZ + PT_NPC]
+	st	%l1, [%sp + STACKFRAME_SZ + PT_PC]
+	st	%l2, [%sp + STACKFRAME_SZ + PT_NPC]
 
 	RESTORE_ALL
 
@@ -746,10 +754,10 @@
 	FLUSH_ALL_KERNEL_WINDOWS
 
 	/* Advance over the trap instruction. */
-	ld	[%sp + REGWIN_SZ + PT_NPC], %l1
+	ld	[%sp + STACKFRAME_SZ + PT_NPC], %l1
 	add	%l1, 0x4, %l2
-	st	%l1, [%sp + REGWIN_SZ + PT_PC]
-	st	%l2, [%sp + REGWIN_SZ + PT_NPC]
+	st	%l1, [%sp + STACKFRAME_SZ + PT_PC]
+	st	%l2, [%sp + STACKFRAME_SZ + PT_NPC]
 
 	RESTORE_ALL
 
@@ -818,7 +826,7 @@
 	sub	%o0, 0x4, %o0
 	lda	[%o0] ASI_CONTROL, %o3	! async error
 	call	C_LABEL(sparc_lvl15_nmi)
-	 add	%sp, REGWIN_SZ, %o0
+	 add	%sp, STACKFRAME_SZ, %o0
 
 	RESTORE_ALL
 
@@ -1152,7 +1160,7 @@
 	WRITE_PAUSE
 
 	call	C_LABEL(do_sun4c_fault)
-	 add	%sp, REGWIN_SZ, %o0	! arg1 = pt_regs ptr
+	 add	%sp, STACKFRAME_SZ, %o0	! arg1 = pt_regs ptr
 
 	RESTORE_ALL
 
@@ -1186,7 +1194,7 @@
 	WRITE_PAUSE
 
 	call	C_LABEL(do_sparc_fault)
-	 add	%sp, REGWIN_SZ, %o0	! arg1 = pt_regs ptr
+	 add	%sp, STACKFRAME_SZ, %o0	! arg1 = pt_regs ptr
 
 	RESTORE_ALL
 
@@ -1224,7 +1232,7 @@
 	.globl	C_LABEL(sys_nis_syscall)
 C_LABEL(sys_nis_syscall):
 	mov	%o7, %l5
-	add	%sp, REGWIN_SZ, %o0		! pt_regs *regs arg
+	add	%sp, STACKFRAME_SZ, %o0		! pt_regs *regs arg
 	call	C_LABEL(c_sys_nis_syscall)
 	 mov	%l5, %o7
 
@@ -1232,7 +1240,7 @@
 	.globl	C_LABEL(sys_ptrace)
 C_LABEL(sys_ptrace):
 	call	C_LABEL(do_ptrace)
-	 add	%sp, REGWIN_SZ, %o0
+	 add	%sp, STACKFRAME_SZ, %o0
 
 	ld	[%curptr + AOFF_task_ptrace], %l5
 	andcc	%l5, 0x02, %g0
@@ -1249,7 +1257,7 @@
 	.globl	C_LABEL(sys_execve)
 C_LABEL(sys_execve):
 	mov	%o7, %l5
-	add	%sp, REGWIN_SZ, %o0		! pt_regs *regs arg
+	add	%sp, STACKFRAME_SZ, %o0		! pt_regs *regs arg
 	call	C_LABEL(sparc_execve)
 	 mov	%l5, %o7
 
@@ -1257,7 +1265,7 @@
 	.globl	C_LABEL(sys_pipe)
 C_LABEL(sys_pipe):
 	mov	%o7, %l5
-	add	%sp, REGWIN_SZ, %o0		! pt_regs *regs arg
+	add	%sp, STACKFRAME_SZ, %o0		! pt_regs *regs arg
 	call	C_LABEL(sparc_pipe)
 	 mov	%l5, %o7
 
@@ -1282,7 +1290,7 @@
 C_LABEL(sys_sigpause):
 	/* Note: %o0 already has correct value... */
 	call	C_LABEL(do_sigpause)
-	 add	%sp, REGWIN_SZ, %o1
+	 add	%sp, STACKFRAME_SZ, %o1
 
 	ld	[%curptr + AOFF_task_ptrace], %l5
 	andcc	%l5, 0x02, %g0
@@ -1300,7 +1308,7 @@
 	.globl	C_LABEL(sys_sigsuspend)
 C_LABEL(sys_sigsuspend):
 	call	C_LABEL(do_sigsuspend)
-	 add	%sp, REGWIN_SZ, %o0
+	 add	%sp, STACKFRAME_SZ, %o0
 
 	ld	[%curptr + AOFF_task_ptrace], %l5
 	andcc	%l5, 0x02, %g0
@@ -1319,7 +1327,7 @@
 C_LABEL(sys_rt_sigsuspend):
 	/* Note: %o0, %o1 already have correct value... */
 	call	C_LABEL(do_rt_sigsuspend)
-	 add	%sp, REGWIN_SZ, %o2
+	 add	%sp, STACKFRAME_SZ, %o2
 
 	ld	[%curptr + AOFF_task_ptrace], %l5
 	andcc	%l5, 0x02, %g0
@@ -1337,7 +1345,7 @@
 	.globl	C_LABEL(sys_sigreturn)
 C_LABEL(sys_sigreturn):
 	call	C_LABEL(do_sigreturn)
-	 add	%sp, REGWIN_SZ, %o0
+	 add	%sp, STACKFRAME_SZ, %o0
 
 	ld	[%curptr + AOFF_task_ptrace], %l5
 	andcc	%l5, 0x02, %g0
@@ -1357,7 +1365,7 @@
 	.globl	C_LABEL(sys_rt_sigreturn)
 C_LABEL(sys_rt_sigreturn):
 	call	C_LABEL(do_rt_sigreturn)
-	 add	%sp, REGWIN_SZ, %o0
+	 add	%sp, STACKFRAME_SZ, %o0
 
 	ld	[%curptr + AOFF_task_ptrace], %l5
 	andcc	%l5, 0x02, %g0
@@ -1391,7 +1399,7 @@
 	WRITE_PAUSE
 	mov	%fp, %o1			! arg1:	usp
 	std	%g4, [%curptr + AOFF_task_thread + AOFF_thread_fork_kpsr]
-	add	%sp, REGWIN_SZ, %o2		! arg2:	pt_regs ptr
+	add	%sp, STACKFRAME_SZ, %o2		! arg2:	pt_regs ptr
 	mov	0, %o3
 	call	C_LABEL(do_fork)
 	 mov	%l5, %o7
@@ -1414,7 +1422,7 @@
 	andn	%o1, 7, %o1			! no, align to 8 bytes
 1:
 	std	%g4, [%curptr + AOFF_task_thread + AOFF_thread_fork_kpsr]
-	add	%sp, REGWIN_SZ, %o2		! arg2:	pt_regs ptr
+	add	%sp, STACKFRAME_SZ, %o2		! arg2:	pt_regs ptr
 	mov	0, %o3
 	call	C_LABEL(do_fork)
 	 mov	%l5, %o7
@@ -1435,7 +1443,7 @@
 	sethi	%hi(C_LABEL(do_fork)), %l1
 	mov	0, %o3
 	jmpl	%l1 + %lo(C_LABEL(do_fork)), %g0
-	 add	%sp, REGWIN_SZ, %o2
+	 add	%sp, STACKFRAME_SZ, %o2
 
         .align  4
 linux_sparc_ni_syscall:
@@ -1466,7 +1474,7 @@
 	call	schedule_tail
 	 mov	%g3, %o0
 	b	C_LABEL(ret_sys_call)
-	 ld	[%sp + REGWIN_SZ + PT_I0], %o0
+	 ld	[%sp + STACKFRAME_SZ + PT_I0], %o0
 
 	/* Linux native and SunOS system calls enter here... */
 	.align	4
@@ -1501,13 +1509,13 @@
 	call	%l7
 	 mov	%i5, %o5
 
-	st	%o0, [%sp + REGWIN_SZ + PT_I0]
+	st	%o0, [%sp + STACKFRAME_SZ + PT_I0]
 
 	.globl	C_LABEL(ret_sys_call)
 C_LABEL(ret_sys_call):
 	ld	[%curptr + AOFF_task_ptrace], %l6
 	cmp	%o0, -ENOIOCTLCMD
-	ld	[%sp + REGWIN_SZ + PT_PSR], %g3
+	ld	[%sp + STACKFRAME_SZ + PT_PSR], %g3
 	set	PSR_C, %g2
 	bgeu	1f
 	 andcc	%l6, 0x02, %l6	
@@ -1515,35 +1523,35 @@
 	/* System call success, clear Carry condition code. */
 	andn	%g3, %g2, %g3
 	clr	%l6
-	st	%g3, [%sp + REGWIN_SZ + PT_PSR]	
+	st	%g3, [%sp + STACKFRAME_SZ + PT_PSR]	
 	bne	linux_syscall_trace2
-	 ld	[%sp + REGWIN_SZ + PT_NPC], %l1 /* pc = npc */
+	 ld	[%sp + STACKFRAME_SZ + PT_NPC], %l1 /* pc = npc */
 	add	%l1, 0x4, %l2			/* npc = npc+4 */
-	st	%l1, [%sp + REGWIN_SZ + PT_PC]
+	st	%l1, [%sp + STACKFRAME_SZ + PT_PC]
 	b	ret_trap_entry
-	 st	%l2, [%sp + REGWIN_SZ + PT_NPC]
+	 st	%l2, [%sp + STACKFRAME_SZ + PT_NPC]
 1:
 	/* System call failure, set Carry condition code.
 	 * Also, get abs(errno) to return to the process.
 	 */
 	sub	%g0, %o0, %o0
 	or	%g3, %g2, %g3
-	st	%o0, [%sp + REGWIN_SZ + PT_I0]
+	st	%o0, [%sp + STACKFRAME_SZ + PT_I0]
 	mov	1, %l6
-	st	%g3, [%sp + REGWIN_SZ + PT_PSR]
+	st	%g3, [%sp + STACKFRAME_SZ + PT_PSR]
 	bne	linux_syscall_trace2
-	 ld	[%sp + REGWIN_SZ + PT_NPC], %l1 /* pc = npc */
+	 ld	[%sp + STACKFRAME_SZ + PT_NPC], %l1 /* pc = npc */
 	add	%l1, 0x4, %l2			/* npc = npc+4 */
-	st	%l1, [%sp + REGWIN_SZ + PT_PC]
+	st	%l1, [%sp + STACKFRAME_SZ + PT_PC]
 	b	ret_trap_entry
-	 st	%l2, [%sp + REGWIN_SZ + PT_NPC]
+	 st	%l2, [%sp + STACKFRAME_SZ + PT_NPC]
 
 linux_syscall_trace2:
 	call	C_LABEL(syscall_trace)
 	 add	%l1, 0x4, %l2			/* npc = npc+4 */
-	st	%l1, [%sp + REGWIN_SZ + PT_PC]
+	st	%l1, [%sp + STACKFRAME_SZ + PT_PC]
 	b	ret_trap_entry
-	 st	%l2, [%sp + REGWIN_SZ + PT_NPC]
+	 st	%l2, [%sp + STACKFRAME_SZ + PT_NPC]
 
 
 	/*
@@ -1581,19 +1589,19 @@
 	mov	%i0, %l5
 
 	call	C_LABEL(do_solaris_syscall)
-	 add	%sp, REGWIN_SZ, %o0
+	 add	%sp, STACKFRAME_SZ, %o0
 
-	st	%o0, [%sp + REGWIN_SZ + PT_I0]
+	st	%o0, [%sp + STACKFRAME_SZ + PT_I0]
 	set	PSR_C, %g2
 	cmp	%o0, -ENOIOCTLCMD
 	bgeu	1f
-	 ld	[%sp + REGWIN_SZ + PT_PSR], %g3
+	 ld	[%sp + STACKFRAME_SZ + PT_PSR], %g3
 
 	/* System call success, clear Carry condition code. */		
 	andn	%g3, %g2, %g3
 	clr	%l6
 	b	2f
-	 st	%g3, [%sp + REGWIN_SZ + PT_PSR]	
+	 st	%g3, [%sp + STACKFRAME_SZ + PT_PSR]	
 
 1:
 	/* System call failure, set Carry condition code.
@@ -1601,9 +1609,9 @@
 	 */
 	sub	%g0, %o0, %o0
 	mov	1, %l6
-	st	%o0, [%sp + REGWIN_SZ + PT_I0]
+	st	%o0, [%sp + STACKFRAME_SZ + PT_I0]
 	or	%g3, %g2, %g3
-	st	%g3, [%sp + REGWIN_SZ + PT_PSR]
+	st	%g3, [%sp + STACKFRAME_SZ + PT_PSR]
 
 	/* Advance the pc and npc over the trap instruction.
 	 * If the npc is unaligned (has a 1 in the lower byte), it means
@@ -1612,19 +1620,19 @@
 	 * nPC (setcontext).
 	 */
 2:
-	ld	[%sp + REGWIN_SZ + PT_NPC], %l1	/* pc  = npc   */
+	ld	[%sp + STACKFRAME_SZ + PT_NPC], %l1	/* pc  = npc   */
 	andcc	%l1, 1, %g0
 	bne	1f
 	 add	%l1, 0x4, %l2			/* npc = npc+4 */
-	st	%l1, [%sp + REGWIN_SZ + PT_PC]
+	st	%l1, [%sp + STACKFRAME_SZ + PT_PC]
 	b	ret_trap_entry
-	 st	%l2, [%sp + REGWIN_SZ + PT_NPC]
+	 st	%l2, [%sp + STACKFRAME_SZ + PT_NPC]
 
 	/* kernel knows what it is doing, fixup npc and continue */
 1:
 	sub	%l1, 1, %l1
  	b	ret_trap_entry	
-	 st	%l1, [%sp + REGWIN_SZ + PT_NPC]
+	 st	%l1, [%sp + STACKFRAME_SZ + PT_NPC]
 
 #ifndef CONFIG_SUNOS_EMUL
 	.align	4
@@ -1637,7 +1645,7 @@
 	nop
 	mov	%i0, %l5
 	call	C_LABEL(do_sunos_syscall)
-	 add	%sp, REGWIN_SZ, %o0
+	 add	%sp, STACKFRAME_SZ, %o0
 #endif
 
 	/* {net, open}bsd system calls enter here... */
@@ -1674,17 +1682,17 @@
 	call	%l7
 	 mov	%i5, %o5
 
-	st	%o0, [%sp + REGWIN_SZ + PT_I0]
+	st	%o0, [%sp + STACKFRAME_SZ + PT_I0]
 	set	PSR_C, %g2
 	cmp	%o0, -ENOIOCTLCMD
 	bgeu	1f
-	 ld	[%sp + REGWIN_SZ + PT_PSR], %g3
+	 ld	[%sp + STACKFRAME_SZ + PT_PSR], %g3
 
 	/* System call success, clear Carry condition code. */		
 	andn	%g3, %g2, %g3
 	clr	%l6
 	b	2f
-	 st	%g3, [%sp + REGWIN_SZ + PT_PSR]	
+	 st	%g3, [%sp + STACKFRAME_SZ + PT_PSR]	
 
 1:
 	/* System call failure, set Carry condition code.
@@ -1698,17 +1706,17 @@
 	ld	[%o3 + %o0], %o0
 #endif
 	mov	1, %l6
-	st	%o0, [%sp + REGWIN_SZ + PT_I0]
+	st	%o0, [%sp + STACKFRAME_SZ + PT_I0]
 	or	%g3, %g2, %g3
-	st	%g3, [%sp + REGWIN_SZ + PT_PSR]
+	st	%g3, [%sp + STACKFRAME_SZ + PT_PSR]
 
 	/* Advance the pc and npc over the trap instruction. */
 2:
-	ld	[%sp + REGWIN_SZ + PT_NPC], %l1	/* pc  = npc   */
+	ld	[%sp + STACKFRAME_SZ + PT_NPC], %l1	/* pc  = npc   */
 	add	%l1, 0x4, %l2			/* npc = npc+4 */
-	st	%l1, [%sp + REGWIN_SZ + PT_PC]
+	st	%l1, [%sp + STACKFRAME_SZ + PT_PC]
 	b	ret_trap_entry
-	 st	%l2, [%sp + REGWIN_SZ + PT_NPC]
+	 st	%l2, [%sp + STACKFRAME_SZ + PT_NPC]
 
 /* Saving and restoring the FPU state is best done from lowlevel code.
  *
@@ -1794,13 +1802,23 @@
 	retl
 	 nop
 
+	.globl	C_LABEL(ndelay)
+C_LABEL(ndelay):
+	save	%sp, -STACKFRAME_SZ, %sp
+	mov	%i0, %o0
+	call	.umul
+	 mov	5, %o1
+	ba	delay_continue
+	 nop
+
 	.globl	C_LABEL(udelay)
 C_LABEL(udelay):
-	save	%sp, -REGWIN_SZ, %sp
+	save	%sp, -STACKFRAME_SZ, %sp
 	mov	%i0, %o0
 	sethi	%hi(0x10c6), %o1
 	call	.umul
 	 or	%o1, %lo(0x10c6), %o1
+delay_continue:
 #ifndef CONFIG_SMP
 	sethi	%hi(C_LABEL(loops_per_jiffy)), %o3
 	call	.umul
@@ -1832,9 +1850,9 @@
 	wr 	%l0, PSR_ET, %psr
 	WRITE_PAUSE
 
-	st	%i0, [%sp + REGWIN_SZ + PT_G0] ! for restarting syscalls
+	st	%i0, [%sp + STACKFRAME_SZ + PT_G0] ! for restarting syscalls
 	call	C_LABEL(sparc_breakpoint)
-	 add	%sp, REGWIN_SZ, %o0
+	 add	%sp, STACKFRAME_SZ, %o0
 
 	RESTORE_ALL
 
@@ -1928,7 +1946,7 @@
 	WRITE_PAUSE
 
 	call	C_LABEL(pcic_nmi)
-	 add	%sp, REGWIN_SZ, %o1	! struct pt_regs *regs
+	 add	%sp, STACKFRAME_SZ, %o1	! struct pt_regs *regs
 	RESTORE_ALL
 
 	.globl	C_LABEL(pcic_nmi_trap_patch)
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TCL-scripts by Sam Shen (who was at: slshen@lbl.gov)