Merge branches 'imx/pata' and 'imx/sata' into next/driver

Conflicts:
	arch/arm/mach-mx5/clock-mx51-mx53.c
	arch/arm/mach-mx5/devices-imx53.h

5 files changed, 40 insertions, 17 deletions

diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c
index 9fb933248ab6..fa44ff538861 100644
--- a/arch/powerpc/kernel/cputable.c
+++ b/arch/powerpc/kernel/cputable.c
@@ -2051,7 +2051,8 @@ static struct cpu_spec __initdata cpu_specs[] = {
 
 static struct cpu_spec the_cpu_spec;
 
-static void __init setup_cpu_spec(unsigned long offset, struct cpu_spec *s)
+static struct cpu_spec * __init setup_cpu_spec(unsigned long offset,
+					       struct cpu_spec *s)
 {
 	struct cpu_spec *t = &the_cpu_spec;
 	struct cpu_spec old;
@@ -2114,6 +2115,8 @@ static void __init setup_cpu_spec(unsigned long offset, struct cpu_spec *s)
 		t->cpu_setup(offset, t);
 	}
 #endif /* CONFIG_PPC64 || CONFIG_BOOKE */
+
+	return t;
 }
 
 struct cpu_spec * __init identify_cpu(unsigned long offset, unsigned int pvr)
@@ -2124,10 +2127,8 @@ struct cpu_spec * __init identify_cpu(unsigned long offset, unsigned int pvr)
 	s = PTRRELOC(s);
 
 	for (i = 0; i < ARRAY_SIZE(cpu_specs); i++,s++) {
-		if ((pvr & s->pvr_mask) == s->pvr_value) {
-			setup_cpu_spec(offset, s);
-			return s;
-		}
+		if ((pvr & s->pvr_mask) == s->pvr_value)
+			return setup_cpu_spec(offset, s);
 	}
 
 	BUG();
diff --git a/arch/powerpc/kernel/iomap.c b/arch/powerpc/kernel/iomap.c
index 1577434f4088..b25f6325fc70 100644
--- a/arch/powerpc/kernel/iomap.c
+++ b/arch/powerpc/kernel/iomap.c
@@ -117,6 +117,7 @@ void ioport_unmap(void __iomem *addr)
 EXPORT_SYMBOL(ioport_map);
 EXPORT_SYMBOL(ioport_unmap);
 
+#ifdef CONFIG_PCI
 void __iomem *pci_iomap(struct pci_dev *dev, int bar, unsigned long max)
 {
 	resource_size_t start = pci_resource_start(dev, bar);
@@ -146,3 +147,4 @@ void pci_iounmap(struct pci_dev *dev, void __iomem *addr)
 
 EXPORT_SYMBOL(pci_iomap);
 EXPORT_SYMBOL(pci_iounmap);
+#endif /* CONFIG_PCI */
diff --git a/arch/powerpc/kernel/machine_kexec.c b/arch/powerpc/kernel/machine_kexec.c
index 6658a1589955..9ce1672afb59 100644
--- a/arch/powerpc/kernel/machine_kexec.c
+++ b/arch/powerpc/kernel/machine_kexec.c
@@ -136,12 +136,16 @@ void __init reserve_crashkernel(void)
 	crashk_res.start = KDUMP_KERNELBASE;
 #else
 	if (!crashk_res.start) {
+#ifdef CONFIG_PPC64
 		/*
-		 * unspecified address, choose a region of specified size
-		 * can overlap with initrd (ignoring corruption when retained)
-		 * ppc64 requires kernel and some stacks to be in first segemnt
+		 * On 64bit we split the RMO in half but cap it at half of
+		 * a small SLB (128MB) since the crash kernel needs to place
+		 * itself and some stacks to be in the first segment.
 		 */
+		crashk_res.start = min(0x80000000ULL, (ppc64_rma_size / 2));
+#else
 		crashk_res.start = KDUMP_KERNELBASE;
+#endif
 	}
 
 	crash_base = PAGE_ALIGN(crashk_res.start);
diff --git a/arch/powerpc/kernel/perf_callchain.c b/arch/powerpc/kernel/perf_callchain.c
index d05ae4204bbf..564c1d8bdb5c 100644
--- a/arch/powerpc/kernel/perf_callchain.c
+++ b/arch/powerpc/kernel/perf_callchain.c
@@ -154,8 +154,12 @@ static int read_user_stack_64(unsigned long __user *ptr, unsigned long *ret)
 	    ((unsigned long)ptr & 7))
 		return -EFAULT;
 
-	if (!__get_user_inatomic(*ret, ptr))
+	pagefault_disable();
+	if (!__get_user_inatomic(*ret, ptr)) {
+		pagefault_enable();
 		return 0;
+	}
+	pagefault_enable();
 
 	return read_user_stack_slow(ptr, ret, 8);
 }
@@ -166,8 +170,12 @@ static int read_user_stack_32(unsigned int __user *ptr, unsigned int *ret)
 	    ((unsigned long)ptr & 3))
 		return -EFAULT;
 
-	if (!__get_user_inatomic(*ret, ptr))
+	pagefault_disable();
+	if (!__get_user_inatomic(*ret, ptr)) {
+		pagefault_enable();
 		return 0;
+	}
+	pagefault_enable();
 
 	return read_user_stack_slow(ptr, ret, 4);
 }
@@ -294,11 +302,17 @@ static inline int current_is_64bit(void)
  */
 static int read_user_stack_32(unsigned int __user *ptr, unsigned int *ret)
 {
+	int rc;
+
 	if ((unsigned long)ptr > TASK_SIZE - sizeof(unsigned int) ||
 	    ((unsigned long)ptr & 3))
 		return -EFAULT;
 
-	return __get_user_inatomic(*ret, ptr);
+	pagefault_disable();
+	rc = __get_user_inatomic(*ret, ptr);
+	pagefault_enable();
+
+	return rc;
 }
 
 static inline void perf_callchain_user_64(struct perf_callchain_entry *entry,
diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index c016033ba78d..a909f4e9343b 100644
--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -1020,7 +1020,7 @@ static unsigned long __init alloc_up(unsigned long size, unsigned long align)
 	}
 	if (addr == 0)
 		return 0;
-	RELOC(alloc_bottom) = addr;
+	RELOC(alloc_bottom) = addr + size;
 
 	prom_debug(" -> %x\n", addr);
 	prom_debug("  alloc_bottom : %x\n", RELOC(alloc_bottom));
@@ -1830,11 +1830,13 @@ static void __init *make_room(unsigned long *mem_start, unsigned long *mem_end,
 		if (room > DEVTREE_CHUNK_SIZE)
 			room = DEVTREE_CHUNK_SIZE;
 		if (room < PAGE_SIZE)
-			prom_panic("No memory for flatten_device_tree (no room)");
+			prom_panic("No memory for flatten_device_tree "
+				   "(no room)\n");
 		chunk = alloc_up(room, 0);
 		if (chunk == 0)
-			prom_panic("No memory for flatten_device_tree (claim failed)");
-		*mem_end = RELOC(alloc_top);
+			prom_panic("No memory for flatten_device_tree "
+				   "(claim failed)\n");
+		*mem_end = chunk + room;
 	}
 
 	ret = (void *)*mem_start;
@@ -2042,7 +2044,7 @@ static void __init flatten_device_tree(void)
 
 	/*
 	 * Check how much room we have between alloc top & bottom (+/- a
-	 * few pages), crop to 4Mb, as this is our "chuck" size
+	 * few pages), crop to 1MB, as this is our "chunk" size
 	 */
 	room = RELOC(alloc_top) - RELOC(alloc_bottom) - 0x4000;
 	if (room > DEVTREE_CHUNK_SIZE)
@@ -2053,7 +2055,7 @@ static void __init flatten_device_tree(void)
 	mem_start = (unsigned long)alloc_up(room, PAGE_SIZE);
 	if (mem_start == 0)
 		prom_panic("Can't allocate initial device-tree chunk\n");
-	mem_end = RELOC(alloc_top);
+	mem_end = mem_start + room;
 
 	/* Get root of tree */
 	root = call_prom("peer", 1, 1, (phandle)0);