Merge branch 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/paulus/powerpc:
  [POWERPC] Silence an annoying boot message
  [POWERPC] Fix early btext debug on PowerMac
  [POWERPC] Demote clockevent printk to KERN_DEBUG
  [POWERPC] Fix CONFIG_SMP=n build error on ppc64
  [POWERPC] Avoid unpaired stwcx. on some processors
  [POWERPC] Fix oops related to 4xx flush_tlb_page modification
  [POWERPC] cpm: Fix a couple minor issues in cpm_common.c.
  [POWERPC] Add -mno-spe for ARCH=powerpc builds

8 files changed, 24 insertions, 19 deletions

diff --git a/arch/powerpc/Makefile b/arch/powerpc/Makefile
index 4e165342210..bd87626c1f6 100644
--- a/arch/powerpc/Makefile
+++ b/arch/powerpc/Makefile
@@ -107,6 +107,9 @@ endif
 # No AltiVec instruction when building kernel
 KBUILD_CFLAGS += $(call cc-option,-mno-altivec)
 
+# No SPE instruction when building kernel
+KBUILD_CFLAGS += $(call cc-option,-mno-spe)
+
 # Enable unit-at-a-time mode when possible. It shrinks the
 # kernel considerably.
 KBUILD_CFLAGS += $(call cc-option,-funit-at-a-time)
diff --git a/arch/powerpc/kernel/btext.c b/arch/powerpc/kernel/btext.c
index 3ef51fb6f10..9c74fdf29ee 100644
--- a/arch/powerpc/kernel/btext.c
+++ b/arch/powerpc/kernel/btext.c
@@ -186,7 +186,9 @@ int btext_initialize(struct device_node *np)
 		pitch = *prop;
 	if (pitch == 1)
 		pitch = 0x1000;
-	prop = of_get_property(np, "address", NULL);
+	prop = of_get_property(np, "linux,bootx-addr", NULL);
+	if (prop == NULL)
+		prop = of_get_property(np, "address", NULL);
 	if (prop)
 		address = *prop;
 
diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S
index a7572cf464b..69a91bd4611 100644
--- a/arch/powerpc/kernel/entry_32.S
+++ b/arch/powerpc/kernel/entry_32.S
@@ -251,6 +251,9 @@ syscall_exit_cont:
 	bne-	2f
 1:
 #endif /* CONFIG_44x */
+BEGIN_FTR_SECTION
+	lwarx	r7,0,r1
+END_FTR_SECTION_IFSET(CPU_FTR_NEED_PAIRED_STWCX)
 	stwcx.	r0,0,r1			/* to clear the reservation */
 	lwz	r4,_LINK(r1)
 	lwz	r5,_CCR(r1)
@@ -717,6 +720,9 @@ restore:
 	mtctr	r11
 
 	PPC405_ERR77(0,r1)
+BEGIN_FTR_SECTION
+	lwarx	r11,0,r1
+END_FTR_SECTION_IFSET(CPU_FTR_NEED_PAIRED_STWCX)
 	stwcx.	r0,0,r1			/* to clear the reservation */
 
 #if !(defined(CONFIG_4xx) || defined(CONFIG_BOOKE))
diff --git a/arch/powerpc/kernel/time.c b/arch/powerpc/kernel/time.c
index 4beb6329dfb..c0d77723ba1 100644
--- a/arch/powerpc/kernel/time.c
+++ b/arch/powerpc/kernel/time.c
@@ -829,7 +829,7 @@ static void register_decrementer_clockevent(int cpu)
 	*dec = decrementer_clockevent;
 	dec->cpumask = cpumask_of_cpu(cpu);
 
-	printk(KERN_INFO "clockevent: %s mult[%lx] shift[%d] cpu[%d]\n",
+	printk(KERN_DEBUG "clockevent: %s mult[%lx] shift[%d] cpu[%d]\n",
 	       dec->name, dec->mult, dec->shift, cpu);
 
 	clockevents_register_device(dec);
diff --git a/arch/powerpc/mm/init_64.c b/arch/powerpc/mm/init_64.c
index d9c82d3d648..c0f5cff7703 100644
--- a/arch/powerpc/mm/init_64.c
+++ b/arch/powerpc/mm/init_64.c
@@ -19,8 +19,6 @@
  *
  */
 
-#undef DEBUG
-
 #include <linux/signal.h>
 #include <linux/sched.h>
 #include <linux/kernel.h>
@@ -66,12 +64,6 @@
 
 #include "mmu_decl.h"
 
-#ifdef DEBUG
-#define DBG(fmt...) printk(fmt)
-#else
-#define DBG(fmt...)
-#endif
-
 #if PGTABLE_RANGE > USER_VSID_RANGE
 #warning Limited user VSID range means pagetable space is wasted
 #endif
@@ -175,8 +167,8 @@ void pgtable_cache_init(void)
 		int size = pgtable_cache_size[i];
 		const char *name = pgtable_cache_name[i];
 
-		DBG("Allocating page table cache %s (#%d) "
-		    "for size: %08x...\n", name, i, size);
+		pr_debug("Allocating page table cache %s (#%d) "
+			"for size: %08x...\n", name, i, size);
 		pgtable_cache[i] = kmem_cache_create(name,
 						     size, size,
 						     SLAB_PANIC,
@@ -239,8 +231,8 @@ int __meminit vmemmap_populate(struct page *start_page,
 		if (!p)
 			return -ENOMEM;
 
-		printk(KERN_WARNING "vmemmap %08lx allocated at %p, "
-		                    "physical %08lx.\n", start, p, __pa(p));
+		pr_debug("vmemmap %08lx allocated at %p, physical %08lx.\n",
+			start, p, __pa(p));
 
 		mapped = htab_bolt_mapping(start, start + page_size,
 					__pa(p), mode_rw, mmu_linear_psize,
diff --git a/arch/powerpc/mm/tlb_64.c b/arch/powerpc/mm/tlb_64.c
index eafbca52bff..e2d867ce1c7 100644
--- a/arch/powerpc/mm/tlb_64.c
+++ b/arch/powerpc/mm/tlb_64.c
@@ -54,12 +54,10 @@ unsigned long pte_freelist_forced_free;
 	((PAGE_SIZE - sizeof(struct pte_freelist_batch)) \
 	  / sizeof(pgtable_free_t))
 
-#ifdef CONFIG_SMP
 static void pte_free_smp_sync(void *arg)
 {
 	/* Do nothing, just ensure we sync with all CPUs */
 }
-#endif
 
 /* This is only called when we are critically out of memory
  * (and fail to get a page in pte_free_tlb).
diff --git a/arch/powerpc/sysdev/cpm_common.c b/arch/powerpc/sysdev/cpm_common.c
index 66c8ad4cfce..165981c8778 100644
--- a/arch/powerpc/sysdev/cpm_common.c
+++ b/arch/powerpc/sysdev/cpm_common.c
@@ -77,8 +77,6 @@ int __init cpm_muram_init(void)
 	int i = 0;
 	int ret = 0;
 
-	printk("cpm_muram_init\n");
-
 	spin_lock_init(&cpm_muram_lock);
 	/* initialize the info header */
 	rh_init(&cpm_muram_info, 1,
@@ -193,7 +191,7 @@ void __iomem *cpm_muram_addr(unsigned long offset)
 EXPORT_SYMBOL(cpm_muram_addr);
 
 /**
- * cpm_muram_phys - turn a muram virtual address into a DMA address
+ * cpm_muram_dma - turn a muram virtual address into a DMA address
  * @offset: virtual address from cpm_muram_addr() to convert
  */
 dma_addr_t cpm_muram_dma(void __iomem *addr)
diff --git a/arch/ppc/kernel/entry.S b/arch/ppc/kernel/entry.S
index b19bfef2034..59e77eb6333 100644
--- a/arch/ppc/kernel/entry.S
+++ b/arch/ppc/kernel/entry.S
@@ -251,6 +251,9 @@ syscall_exit_cont:
 	bne-	2f
 1:
 #endif /* CONFIG_44x */
+BEGIN_FTR_SECTION
+	lwarx	r7,0,r1
+END_FTR_SECTION_IFSET(CPU_FTR_NEED_PAIRED_STWCX)
 	stwcx.	r0,0,r1			/* to clear the reservation */
 	lwz	r4,_LINK(r1)
 	lwz	r5,_CCR(r1)
@@ -713,6 +716,9 @@ restore:
 	mtctr	r11
 
 	PPC405_ERR77(0,r1)
+BEGIN_FTR_SECTION
+	lwarx	r11,0,r1
+END_FTR_SECTION_IFSET(CPU_FTR_NEED_PAIRED_STWCX)
 	stwcx.	r0,0,r1			/* to clear the reservation */
 
 #if !(defined(CONFIG_4xx) || defined(CONFIG_BOOKE))