Merge remote branch 'jwb/merge' into merge

4 files changed, 18 insertions, 12 deletions

diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c
index 65e2b4e10f97..1f9123f412ec 100644
--- a/arch/powerpc/kernel/cputable.c
+++ b/arch/powerpc/kernel/cputable.c
@@ -1826,7 +1826,6 @@ static struct cpu_spec __initdata cpu_specs[] = {
 		.cpu_features		= CPU_FTRS_47X,
 		.cpu_user_features	= COMMON_USER_BOOKE |
 			PPC_FEATURE_HAS_FPU,
-		.cpu_user_features	= COMMON_USER_BOOKE,
 		.mmu_features		= MMU_FTR_TYPE_47x |
 			MMU_FTR_USE_TLBIVAX_BCAST | MMU_FTR_LOCK_BCAST_INVAL,
 		.icache_bsize		= 32,
diff --git a/arch/powerpc/kernel/head_44x.S b/arch/powerpc/kernel/head_44x.S
index 5ab484ef06a7..562305b40a8e 100644
--- a/arch/powerpc/kernel/head_44x.S
+++ b/arch/powerpc/kernel/head_44x.S
@@ -113,6 +113,10 @@ _ENTRY(_start);
 	stw	r5, 0(r4)	/* Save abatron_pteptrs at a fixed location */
 	stw	r6, 0(r5)
 
+	/* Clear the Machine Check Syndrome Register */
+	li	r0,0
+	mtspr	SPRN_MCSR,r0
+
 	/* Let's move on */
 	lis	r4,start_kernel@h
 	ori	r4,r4,start_kernel@l
diff --git a/arch/powerpc/kernel/irq.c b/arch/powerpc/kernel/irq.c
index d3ce67cf03be..4a65386995d7 100644
--- a/arch/powerpc/kernel/irq.c
+++ b/arch/powerpc/kernel/irq.c
@@ -67,6 +67,7 @@
 #include <asm/machdep.h>
 #include <asm/udbg.h>
 #include <asm/dbell.h>
+#include <asm/smp.h>
 
 #ifdef CONFIG_PPC64
 #include <asm/paca.h>
@@ -446,22 +447,23 @@ struct thread_info *mcheckirq_ctx[NR_CPUS] __read_mostly;
 void exc_lvl_ctx_init(void)
 {
 	struct thread_info *tp;
-	int i;
+	int i, hw_cpu;
 
 	for_each_possible_cpu(i) {
-		memset((void *)critirq_ctx[i], 0, THREAD_SIZE);
-		tp = critirq_ctx[i];
+		hw_cpu = get_hard_smp_processor_id(i);
+		memset((void *)critirq_ctx[hw_cpu], 0, THREAD_SIZE);
+		tp = critirq_ctx[hw_cpu];
 		tp->cpu = i;
 		tp->preempt_count = 0;
 
 #ifdef CONFIG_BOOKE
-		memset((void *)dbgirq_ctx[i], 0, THREAD_SIZE);
-		tp = dbgirq_ctx[i];
+		memset((void *)dbgirq_ctx[hw_cpu], 0, THREAD_SIZE);
+		tp = dbgirq_ctx[hw_cpu];
 		tp->cpu = i;
 		tp->preempt_count = 0;
 
-		memset((void *)mcheckirq_ctx[i], 0, THREAD_SIZE);
-		tp = mcheckirq_ctx[i];
+		memset((void *)mcheckirq_ctx[hw_cpu], 0, THREAD_SIZE);
+		tp = mcheckirq_ctx[hw_cpu];
 		tp->cpu = i;
 		tp->preempt_count = HARDIRQ_OFFSET;
 #endif
diff --git a/arch/powerpc/kernel/setup_32.c b/arch/powerpc/kernel/setup_32.c
index a10ffc85ada7..93666f9cabf1 100644
--- a/arch/powerpc/kernel/setup_32.c
+++ b/arch/powerpc/kernel/setup_32.c
@@ -258,17 +258,18 @@ static void __init irqstack_early_init(void)
 #if defined(CONFIG_BOOKE) || defined(CONFIG_40x)
 static void __init exc_lvl_early_init(void)
 {
-	unsigned int i;
+	unsigned int i, hw_cpu;
 
 	/* interrupt stacks must be in lowmem, we get that for free on ppc32
 	 * as the memblock is limited to lowmem by MEMBLOCK_REAL_LIMIT */
 	for_each_possible_cpu(i) {
-		critirq_ctx[i] = (struct thread_info *)
+		hw_cpu = get_hard_smp_processor_id(i);
+		critirq_ctx[hw_cpu] = (struct thread_info *)
 			__va(memblock_alloc(THREAD_SIZE, THREAD_SIZE));
 #ifdef CONFIG_BOOKE
-		dbgirq_ctx[i] = (struct thread_info *)
+		dbgirq_ctx[hw_cpu] = (struct thread_info *)
 			__va(memblock_alloc(THREAD_SIZE, THREAD_SIZE));
-		mcheckirq_ctx[i] = (struct thread_info *)
+		mcheckirq_ctx[hw_cpu] = (struct thread_info *)
 			__va(memblock_alloc(THREAD_SIZE, THREAD_SIZE));
 #endif
 	}