Merge branch 'linus' into tracing-v28-for-linus-v3

Conflicts:
	init/main.c
	kernel/module.c
	scripts/bootgraph.pl

1 files changed, 36 insertions, 33 deletions

diff --git a/arch/powerpc/kernel/entry_64.S b/arch/powerpc/kernel/entry_64.S
index 2d802e97097c..fd8b4bae9b04 100644
--- a/arch/powerpc/kernel/entry_64.S
+++ b/arch/powerpc/kernel/entry_64.S
@@ -512,31 +512,12 @@ _GLOBAL(ret_from_except_lite)
 #endif
 
 restore:
-	ld	r5,SOFTE(r1)
-#ifdef CONFIG_PPC_ISERIES
 BEGIN_FW_FTR_SECTION
-	cmpdi	0,r5,0
-	beq	4f
-	/* Check for pending interrupts (iSeries) */
-	ld	r3,PACALPPACAPTR(r13)
-	ld	r3,LPPACAANYINT(r3)
-	cmpdi	r3,0
-	beq+	4f			/* skip do_IRQ if no interrupts */
-
-	li	r3,0
-	stb	r3,PACASOFTIRQEN(r13)	/* ensure we are soft-disabled */
-#ifdef CONFIG_TRACE_IRQFLAGS
-	bl	.trace_hardirqs_off
-	mfmsr	r10
-#endif
-	ori	r10,r10,MSR_EE
-	mtmsrd	r10			/* hard-enable again */
-	addi	r3,r1,STACK_FRAME_OVERHEAD
-	bl	.do_IRQ
-	b	.ret_from_except_lite		/* loop back and handle more */
-4:
-END_FW_FTR_SECTION_IFSET(FW_FEATURE_ISERIES)
-#endif
+	ld	r5,SOFTE(r1)
+FW_FTR_SECTION_ELSE
+	b	iseries_check_pending_irqs
+ALT_FW_FTR_SECTION_END_IFCLR(FW_FEATURE_ISERIES)
+2:
 	TRACE_AND_RESTORE_IRQ(r5);
 
 	/* extract EE bit and use it to restore paca->hard_enabled */
@@ -592,6 +573,30 @@ END_FW_FTR_SECTION_IFSET(FW_FEATURE_ISERIES)
 	rfid
 	b	.	/* prevent speculative execution */
 
+iseries_check_pending_irqs:
+#ifdef CONFIG_PPC_ISERIES
+	ld	r5,SOFTE(r1)
+	cmpdi	0,r5,0
+	beq	2b
+	/* Check for pending interrupts (iSeries) */
+	ld	r3,PACALPPACAPTR(r13)
+	ld	r3,LPPACAANYINT(r3)
+	cmpdi	r3,0
+	beq+	2b			/* skip do_IRQ if no interrupts */
+
+	li	r3,0
+	stb	r3,PACASOFTIRQEN(r13)	/* ensure we are soft-disabled */
+#ifdef CONFIG_TRACE_IRQFLAGS
+	bl	.trace_hardirqs_off
+	mfmsr	r10
+#endif
+	ori	r10,r10,MSR_EE
+	mtmsrd	r10			/* hard-enable again */
+	addi	r3,r1,STACK_FRAME_OVERHEAD
+	bl	.do_IRQ
+	b	.ret_from_except_lite		/* loop back and handle more */
+#endif
+
 do_work:
 #ifdef CONFIG_PREEMPT
 	andi.	r0,r3,MSR_PR	/* Returning to user mode? */
@@ -685,10 +690,6 @@ _GLOBAL(enter_rtas)
 	std	r7,_DAR(r1)
 	mfdsisr	r8
 	std	r8,_DSISR(r1)
-	mfsrr0	r9
-	std	r9,_SRR0(r1)
-	mfsrr1	r10
-	std	r10,_SRR1(r1)
 
 	/* Temporary workaround to clear CR until RTAS can be modified to
 	 * ignore all bits.
@@ -749,6 +750,10 @@ _STATIC(rtas_return_loc)
 	mfspr	r4,SPRN_SPRG3	        /* Get PACA */
 	clrldi	r4,r4,2			/* convert to realmode address */
 
+	bcl	20,31,$+4
+0:	mflr	r3
+	ld	r3,(1f-0b)(r3)		/* get &.rtas_restore_regs */
+
 	mfmsr   r6
 	li	r0,MSR_RI
 	andc	r6,r6,r0
@@ -756,7 +761,6 @@ _STATIC(rtas_return_loc)
 	mtmsrd  r6
         
         ld	r1,PACAR1(r4)           /* Restore our SP */
-	LOAD_REG_IMMEDIATE(r3,.rtas_restore_regs)
         ld	r4,PACASAVEDMSR(r4)     /* Restore our MSR */
 
 	mtspr	SPRN_SRR0,r3
@@ -764,6 +768,9 @@ _STATIC(rtas_return_loc)
 	rfid
 	b	.	/* prevent speculative execution */
 
+	.align	3
+1:	.llong	.rtas_restore_regs
+
 _STATIC(rtas_restore_regs)
 	/* relocation is on at this point */
 	REST_GPR(2, r1)			/* Restore the TOC */
@@ -783,10 +790,6 @@ _STATIC(rtas_restore_regs)
 	mtdar	r7
 	ld	r8,_DSISR(r1)
 	mtdsisr	r8
-	ld	r9,_SRR0(r1)
-	mtsrr0	r9
-	ld	r10,_SRR1(r1)
-	mtsrr1	r10
 
         addi	r1,r1,RTAS_FRAME_SIZE	/* Unstack our frame */
 	ld	r0,16(r1)		/* get return address */