X-Git-Url: http://git.onelab.eu/?p=linux-2.6.git;a=blobdiff_plain;f=arch%2Fpowerpc%2Fkernel%2Fentry_32.S;fp=arch%2Fpowerpc%2Fkernel%2Fentry_32.S;h=c03e829fee3c17a2f3d29cc2fe51e93167fbc3b9;hp=4827ca1ec89b74dfc782b47d921e30172a76200a;hb=97bf2856c6014879bd04983a3e9dfcdac1e7fe85;hpb=76828883507a47dae78837ab5dec5a5b4513c667

diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S
index 4827ca1ec..c03e829fe 100644
--- a/arch/powerpc/kernel/entry_32.S
+++ b/arch/powerpc/kernel/entry_32.S
@@ -19,7 +19,6 @@
  *
  */
 
-#include <linux/config.h>
 #include <linux/errno.h>
 #include <linux/sys.h>
 #include <linux/threads.h>
@@ -128,45 +127,48 @@ transfer_to_handler:
 	stw	r12,4(r11)
 #endif
 	b	3f
+
 2:	/* if from kernel, check interrupted DOZE/NAP mode and
          * check for stack overflow
          */
+	lwz	r9,THREAD_INFO-THREAD(r12)
+	cmplw	r1,r9			/* if r1 <= current->thread_info */
+	ble-	stack_ovf		/* then the kernel stack overflowed */
+5:
 #ifdef CONFIG_6xx
-	mfspr	r11,SPRN_HID0
-	mtcr	r11
-BEGIN_FTR_SECTION
-	bt-	8,power_save_6xx_restore	/* Check DOZE */
-END_FTR_SECTION_IFSET(CPU_FTR_CAN_DOZE)
-BEGIN_FTR_SECTION
-	bt-	9,power_save_6xx_restore	/* Check NAP */
-END_FTR_SECTION_IFSET(CPU_FTR_CAN_NAP)
+	tophys(r9,r9)			/* check local flags */
+	lwz	r12,TI_LOCAL_FLAGS(r9)
+	mtcrf	0x01,r12
+	bt-	31-TLF_NAPPING,4f
 #endif /* CONFIG_6xx */
 	.globl transfer_to_handler_cont
 transfer_to_handler_cont:
-	lwz	r11,THREAD_INFO-THREAD(r12)
-	cmplw	r1,r11			/* if r1 <= current->thread_info */
-	ble-	stack_ovf		/* then the kernel stack overflowed */
 3:
 	mflr	r9
 	lwz	r11,0(r9)		/* virtual address of handler */
 	lwz	r9,4(r9)		/* where to go when done */
-	FIX_SRR1(r10,r12)
 	mtspr	SPRN_SRR0,r11
 	mtspr	SPRN_SRR1,r10
 	mtlr	r9
 	SYNC
 	RFI				/* jump to handler, enable MMU */
 
+#ifdef CONFIG_6xx
+4:	rlwinm	r12,r12,0,~_TLF_NAPPING
+	stw	r12,TI_LOCAL_FLAGS(r9)
+	b	power_save_6xx_restore
+#endif
+
 /*
  * On kernel stack overflow, load up an initial stack pointer
  * and call StackOverflow(regs), which should not return.
  */
 stack_ovf:
 	/* sometimes we use a statically-allocated stack, which is OK. */
-	lis	r11,_end@h
-	ori	r11,r11,_end@l
-	cmplw	r1,r11
-	ble	3b			/* r1 <= &_end is OK */
+	lis	r12,_end@h
+	ori	r12,r12,_end@l
+	cmplw	r1,r12
+	ble	5b			/* r1 <= &_end is OK */
 	SAVE_NVGPRS(r11)
 	addi	r3,r1,STACK_FRAME_OVERHEAD
 	lis	r1,init_thread_union@ha