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

* 'merge' of git://git.kernel.org/pub/scm/linux/kernel/git/benh/powerpc: (103 commits)
  powerpc: Fix bug in move of altivec code to vector.S
  powerpc: Add support for swiotlb on 32-bit
  powerpc/spufs: Remove unused error path
  powerpc: Fix warning when printing a resource_size_t
  powerpc/xmon: Remove unused variable in xmon.c
  powerpc/pseries: Fix warnings when printing resource_size_t
  powerpc: Shield code specific to 64-bit server processors
  powerpc: Separate PACA fields for server CPUs
  powerpc: Split exception handling out of head_64.S
  powerpc: Introduce CONFIG_PPC_BOOK3S
  powerpc: Move VMX and VSX asm code to vector.S
  powerpc: Set init_bootmem_done on NUMA platforms as well
  powerpc/mm: Fix a AB->BA deadlock scenario with nohash MMU context lock
  powerpc/mm: Fix some SMP issues with MMU context handling
  powerpc: Add PTRACE_SINGLEBLOCK support
  fbdev: Add PLB support and cleanup DCR in xilinxfb driver.
  powerpc/virtex: Add ml510 reference design device tree
  powerpc/virtex: Add Xilinx ML510 reference design support
  powerpc/virtex: refactor intc driver and add support for i8259 cascading
  powerpc/virtex: Add support for Xilinx PCI host bridge
  ...

5 files changed, 31 insertions, 12 deletions

diff --git a/arch/powerpc/mm/Makefile b/arch/powerpc/mm/Makefile
index b746f4ca420..c4bcf072cb3 100644
--- a/arch/powerpc/mm/Makefile
+++ b/arch/powerpc/mm/Makefile
@@ -11,10 +11,11 @@ obj-y				:= fault.o mem.o pgtable.o gup.o \
 				   pgtable_$(CONFIG_WORD_SIZE).o
 obj-$(CONFIG_PPC_MMU_NOHASH)	+= mmu_context_nohash.o tlb_nohash.o \
 				   tlb_nohash_low.o
-hash-$(CONFIG_PPC_NATIVE)	:= hash_native_64.o
-obj-$(CONFIG_PPC64)		+= hash_utils_64.o \
+obj-$(CONFIG_PPC64)		+= mmap_64.o
+hash64-$(CONFIG_PPC_NATIVE)	:= hash_native_64.o
+obj-$(CONFIG_PPC_STD_MMU_64)	+= hash_utils_64.o \
 				   slb_low.o slb.o stab.o \
-				   mmap_64.o $(hash-y)
+				   mmap_64.o $(hash64-y)
 obj-$(CONFIG_PPC_STD_MMU_32)	+= ppc_mmu_32.o
 obj-$(CONFIG_PPC_STD_MMU)	+= hash_low_$(CONFIG_WORD_SIZE).o \
 				   tlb_hash$(CONFIG_WORD_SIZE).o \
diff --git a/arch/powerpc/mm/hash_native_64.c b/arch/powerpc/mm/hash_native_64.c
index 34e5c0b219b..056d23a1b10 100644
--- a/arch/powerpc/mm/hash_native_64.c
+++ b/arch/powerpc/mm/hash_native_64.c
@@ -27,6 +27,7 @@
 #include <asm/cputable.h>
 #include <asm/udbg.h>
 #include <asm/kexec.h>
+#include <asm/ppc-opcode.h>
 
 #ifdef DEBUG_LOW
 #define DBG_LOW(fmt...) udbg_printf(fmt)
@@ -49,14 +50,21 @@ static inline void __tlbie(unsigned long va, int psize, int ssize)
 	case MMU_PAGE_4K:
 		va &= ~0xffful;
 		va |= ssize << 8;
-		asm volatile("tlbie %0,0" : : "r" (va) : "memory");
+		asm volatile(ASM_MMU_FTR_IFCLR("tlbie %0,0", PPC_TLBIE(%1,%0),
+					       %2)
+			     : : "r" (va), "r"(0), "i" (MMU_FTR_TLBIE_206)
+			     : "memory");
 		break;
 	default:
 		penc = mmu_psize_defs[psize].penc;
 		va &= ~((1ul << mmu_psize_defs[psize].shift) - 1);
 		va |= penc << 12;
 		va |= ssize << 8;
-		asm volatile("tlbie %0,1" : : "r" (va) : "memory");
+		va |= 1; /* L */
+		asm volatile(ASM_MMU_FTR_IFCLR("tlbie %0,1", PPC_TLBIE(%1,%0),
+					       %2)
+			     : : "r" (va), "r"(0), "i" (MMU_FTR_TLBIE_206)
+			     : "memory");
 		break;
 	}
 }
@@ -80,6 +88,7 @@ static inline void __tlbiel(unsigned long va, int psize, int ssize)
 		va &= ~((1ul << mmu_psize_defs[psize].shift) - 1);
 		va |= penc << 12;
 		va |= ssize << 8;
+		va |= 1; /* L */
 		asm volatile(".long 0x7c000224 | (%0 << 11) | (1 << 21)"
 			     : : "r"(va) : "memory");
 		break;
diff --git a/arch/powerpc/mm/init_64.c b/arch/powerpc/mm/init_64.c
index 3e6a6543f53..68a821add28 100644
--- a/arch/powerpc/mm/init_64.c
+++ b/arch/powerpc/mm/init_64.c
@@ -66,6 +66,7 @@
 
 #include "mmu_decl.h"
 
+#ifdef CONFIG_PPC_STD_MMU_64
 #if PGTABLE_RANGE > USER_VSID_RANGE
 #warning Limited user VSID range means pagetable space is wasted
 #endif
@@ -73,6 +74,7 @@
 #if (TASK_SIZE_USER64 < PGTABLE_RANGE) && (TASK_SIZE_USER64 < USER_VSID_RANGE)
 #warning TASK_SIZE is smaller than it needs to be.
 #endif
+#endif /* CONFIG_PPC_STD_MMU_64 */
 
 phys_addr_t memstart_addr = ~0;
 phys_addr_t kernstart_addr;
diff --git a/arch/powerpc/mm/mmu_context_nohash.c b/arch/powerpc/mm/mmu_context_nohash.c
index 030d0005b4d..8343986809c 100644
--- a/arch/powerpc/mm/mmu_context_nohash.c
+++ b/arch/powerpc/mm/mmu_context_nohash.c
@@ -46,7 +46,7 @@ static unsigned int next_context, nr_free_contexts;
 static unsigned long *context_map;
 static unsigned long *stale_map[NR_CPUS];
 static struct mm_struct **context_mm;
-static spinlock_t context_lock = SPIN_LOCK_UNLOCKED;
+static DEFINE_SPINLOCK(context_lock);
 
 #define CTX_MAP_SIZE	\
 	(sizeof(unsigned long) * (last_context / BITS_PER_LONG + 1))
@@ -73,7 +73,6 @@ static unsigned int steal_context_smp(unsigned int id)
 	struct mm_struct *mm;
 	unsigned int cpu, max;
 
- again:
 	max = last_context - first_context;
 
 	/* Attempt to free next_context first and then loop until we manage */
@@ -108,7 +107,9 @@ static unsigned int steal_context_smp(unsigned int id)
 	spin_unlock(&context_lock);
 	cpu_relax();
 	spin_lock(&context_lock);
-	goto again;
+
+	/* This will cause the caller to try again */
+	return MMU_NO_CONTEXT;
 }
 #endif  /* CONFIG_SMP */
 
@@ -194,6 +195,8 @@ void switch_mmu_context(struct mm_struct *prev, struct mm_struct *next)
 		WARN_ON(prev->context.active < 1);
 		prev->context.active--;
 	}
+
+ again:
 #endif /* CONFIG_SMP */
 
 	/* If we already have a valid assigned context, skip all that */
@@ -212,7 +215,8 @@ void switch_mmu_context(struct mm_struct *prev, struct mm_struct *next)
 #ifdef CONFIG_SMP
 		if (num_online_cpus() > 1) {
 			id = steal_context_smp(id);
-			goto stolen;
+			if (id == MMU_NO_CONTEXT)
+				goto again;
 		}
 #endif /* CONFIG_SMP */
 		id = steal_context_up(id);
@@ -272,6 +276,7 @@ int init_new_context(struct task_struct *t, struct mm_struct *mm)
  */
 void destroy_context(struct mm_struct *mm)
 {
+	unsigned long flags;
 	unsigned int id;
 
 	if (mm->context.id == MMU_NO_CONTEXT)
@@ -279,18 +284,18 @@ void destroy_context(struct mm_struct *mm)
 
 	WARN_ON(mm->context.active != 0);
 
-	spin_lock(&context_lock);
+	spin_lock_irqsave(&context_lock, flags);
 	id = mm->context.id;
 	if (id != MMU_NO_CONTEXT) {
 		__clear_bit(id, context_map);
 		mm->context.id = MMU_NO_CONTEXT;
 #ifdef DEBUG_MAP_CONSISTENCY
 		mm->context.active = 0;
-		context_mm[id] = NULL;
 #endif
+		context_mm[id] = NULL;
 		nr_free_contexts++;
 	}
-	spin_unlock(&context_lock);
+	spin_unlock_irqrestore(&context_lock, flags);
 }
 
 #ifdef CONFIG_SMP
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index 9047145095a..b037d95eead 100644
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -981,6 +981,8 @@ void __init do_init_bootmem(void)
 		mark_reserved_regions_for_nid(nid);
 		sparse_memory_present_with_active_regions(nid);
 	}
+
+	init_bootmem_done = 1;
 }
 
 void __init paging_init(void)