X-Git-Url: http://git.onelab.eu/?a=blobdiff_plain;f=arch%2Fparisc%2Fkernel%2Freal2.S;h=789061f6ceb4827b6b28c1c8fb4fa8355220d1bf;hb=refs%2Fheads%2Fvserver;hp=03ed8aabcf0415371d36bae8b3b790e515eb0617;hpb=5273a3df6485dc2ad6aa7ddd441b9a21970f003b;p=linux-2.6.git

diff --git a/arch/parisc/kernel/real2.S b/arch/parisc/kernel/real2.S
index 03ed8aabc..789061f6c 100644
--- a/arch/parisc/kernel/real2.S
+++ b/arch/parisc/kernel/real2.S
@@ -7,16 +7,21 @@
  * Copyright (C) 2000 Hewlett Packard (Paul Bame bame@puffin.external.hp.com)
  *
  */
-#include <asm/assembly.h>
+
 #include <asm/psw.h>
+#include <asm/assembly.h>
 
 	.section	.bss
 	.export real_stack
+	.export real32_stack
+	.export real64_stack
 	.align	64
 real_stack:
+real32_stack:
+real64_stack:
 	.block	8192
 
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 #  define REG_SZ 8
 #else
 #  define REG_SZ 4
@@ -26,6 +31,7 @@ real_stack:
 
 save_cr_space:
 	.block	REG_SZ * N_SAVED_REGS
+save_cr_end:
 
 
 /************************ 32-bit real-mode calls ***********************/
@@ -45,7 +51,7 @@ save_cr_space:
 
 real32_call_asm:
 	STREG	%rp, -RP_OFFSET(%sp)	/* save RP */
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 	callee_save
 	ldo	2*REG_SZ(%sp), %sp	/* room for a couple more saves */
 	STREG	%r27, -1*REG_SZ(%sp)
@@ -72,16 +78,15 @@ real32_call_asm:
 	b,l	save_control_regs,%r2		/* modifies r1, r2, r28 */
 	nop
 
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 	rsm	PSW_SM_W, %r0		/* go narrow */
 #endif
 
-	ldil	L%PA(ric_ret), %r2
-	ldo	R%PA(ric_ret)(%r2), %r2
+	load32	PA(ric_ret), %r2
 	bv	0(%r31)
 	nop
 ric_ret:
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 	ssm	PSW_SM_W, %r0		/* go wide */
 #endif
 	/* restore CRs before going virtual in case we page fault */
@@ -93,7 +98,7 @@ ric_ret:
 
 	tovirt_r1 %sp
 	LDREG	-REG_SZ(%sp), %sp	/* restore SP */
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 	LDREG	-1*REG_SZ(%sp), %r27
 	LDREG	-2*REG_SZ(%sp), %r29
 	ldo	-2*REG_SZ(%sp), %sp
@@ -123,7 +128,7 @@ save_control_regs:
 	nop
 
 restore_control_regs:
-	load32	PA(save_cr_space+(N_SAVED_REGS*REG_SZ)), %r26
+	load32	PA(save_cr_end), %r26
 	POP_CR(%cr15, %r26)
 	POP_CR(%cr31, %r26)
 	POP_CR(%cr30, %r26)
@@ -139,24 +144,21 @@ restore_control_regs:
 /* rfi_virt2real() and rfi_real2virt() could perhaps be adapted for
  * more general-purpose use by the several places which need RFIs
  */
-	.align 128
 	.text
+	.align 128
 rfi_virt2real:
 	/* switch to real mode... */
-	ssm		0,0		/* See "relied upon translation" */
-	nop				/* comment in interruption.S */
-	nop
-	nop
+	rsm		PSW_SM_I,%r0
+	load32		PA(rfi_v2r_1), %r1
 	nop
 	nop
 	nop
 	nop
 	nop
 	
-	rsm             (PSW_SM_Q|PSW_SM_I),%r0  /* disable Q & I bits to load iia queue */
+	rsm             PSW_SM_Q,%r0  /* disable Q & I bits to load iia queue */
 	mtctl		%r0, %cr17	/* Clear IIASQ tail */
 	mtctl		%r0, %cr17	/* Clear IIASQ head */
-	load32		PA(rfi_v2r_1), %r1
 	mtctl		%r1, %cr18	/* IIAOQ head */
 	ldo		4(%r1), %r1
 	mtctl		%r1, %cr18	/* IIAOQ tail */
@@ -180,10 +182,8 @@ rfi_v2r_1:
 	.text
 	.align 128
 rfi_real2virt:
-	ssm		0,0		/* See "relied upon translation" */
-	nop				/* comment in interruption.S */
-	nop
-	nop
+	rsm		PSW_SM_I,%r0
+	load32		(rfi_r2v_1), %r1
 	nop
 	nop
 	nop
@@ -193,7 +193,6 @@ rfi_real2virt:
 	rsm             PSW_SM_Q,%r0    /* disable Q bit to load iia queue */
 	mtctl		%r0, %cr17	/* Clear IIASQ tail */
 	mtctl		%r0, %cr17	/* Clear IIASQ head */
-	load32		(rfi_r2v_1), %r1
 	mtctl		%r1, %cr18	/* IIAOQ head */
 	ldo		4(%r1), %r1
 	mtctl		%r1, %cr18	/* IIAOQ tail */
@@ -214,7 +213,7 @@ rfi_r2v_1:
 	bv	0(%r2)
 	nop
 
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 
 /************************ 64-bit real-mode calls ***********************/
 /* This is only usable in wide kernels right now and will probably stay so */
@@ -276,15 +275,6 @@ r64_ret:
 
 #endif
 
-	.export pc_in_user_space
-	.text
-	/* Doesn't belong here but I couldn't find a nicer spot. */
-	/* Should never get called, only used by profile stuff in time.c */
-pc_in_user_space:
-	bv,n	0(%rp)
-	nop
-
-
 	.export __canonicalize_funcptr_for_compare
 	.text
 	/* http://lists.parisc-linux.org/hypermail/parisc-linux/10916.html
@@ -292,7 +282,7 @@ pc_in_user_space:
 	**	comparing function pointers.
 	*/
 __canonicalize_funcptr_for_compare:
-#ifdef __LP64__
+#ifdef CONFIG_64BIT
 	bve (%r2)
 #else
 	bv %r0(%r2)