Merge tag 'v3.16-rc7' into perf/core, to merge in the latest fixes before applying new changes

Signed-off-by: Ingo Molnar <mingo@kernel.org>

47 files changed, 208 insertions, 602 deletions

diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index bd6dd6ed3a9f..80b94b0add1f 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -145,6 +145,7 @@ config PPC
 	select HAVE_IRQ_EXIT_ON_IRQ_STACK
 	select ARCH_USE_CMPXCHG_LOCKREF if PPC64
 	select HAVE_ARCH_AUDITSYSCALL
+	select ARCH_SUPPORTS_ATOMIC_RMW
 
 config GENERIC_CSUM
 	def_bool CPU_LITTLE_ENDIAN
@@ -414,7 +415,7 @@ config KEXEC
 config CRASH_DUMP
 	bool "Build a kdump crash kernel"
 	depends on PPC64 || 6xx || FSL_BOOKE || (44x && !SMP)
-	select RELOCATABLE if PPC64 || 44x || FSL_BOOKE
+	select RELOCATABLE if (PPC64 && !COMPILE_TEST) || 44x || FSL_BOOKE
 	help
 	  Build a kernel suitable for use as a kdump capture kernel.
 	  The same kernel binary can be used as production kernel and dump
@@ -1017,6 +1018,7 @@ endmenu
 if PPC64
 config RELOCATABLE
 	bool "Build a relocatable kernel"
+	depends on !COMPILE_TEST
 	select NONSTATIC_KERNEL
 	help
 	  This builds a kernel image that is capable of running anywhere
diff --git a/arch/powerpc/Kconfig.debug b/arch/powerpc/Kconfig.debug
index 790352f93700..35d16bd2760b 100644
--- a/arch/powerpc/Kconfig.debug
+++ b/arch/powerpc/Kconfig.debug
@@ -303,7 +303,6 @@ config PPC_EARLY_DEBUG_OPAL_VTERMNO
 	  This correspond to which /dev/hvcN you want to use for early
 	  debug.
 
-	  On OPAL v1 (takeover) this should always be 0
 	  On OPAL v2, this will be 0 for network console and 1 or 2 for
 	  the machine built-in serial ports.
 
diff --git a/arch/powerpc/include/asm/code-patching.h b/arch/powerpc/include/asm/code-patching.h
index 37991e154ef8..840a5509b3f1 100644
--- a/arch/powerpc/include/asm/code-patching.h
+++ b/arch/powerpc/include/asm/code-patching.h
@@ -88,4 +88,15 @@ static inline unsigned long ppc_function_entry(void *func)
 #endif
 }
 
+static inline unsigned long ppc_global_function_entry(void *func)
+{
+#if defined(CONFIG_PPC64) && defined(_CALL_ELF) && _CALL_ELF == 2
+	/* PPC64 ABIv2 the global entry point is at the address */
+	return (unsigned long)func;
+#else
+	/* All other cases there is no change vs ppc_function_entry() */
+	return ppc_function_entry(func);
+#endif
+}
+
 #endif /* _ASM_POWERPC_CODE_PATCHING_H */
diff --git a/arch/powerpc/include/asm/cputable.h b/arch/powerpc/include/asm/cputable.h
index bc2347774f0a..0fdd7eece6d9 100644
--- a/arch/powerpc/include/asm/cputable.h
+++ b/arch/powerpc/include/asm/cputable.h
@@ -447,6 +447,7 @@ extern const char *powerpc_base_platform;
 	    CPU_FTR_DBELL | CPU_FTR_HAS_PPR | CPU_FTR_DAWR | \
 	    CPU_FTR_ARCH_207S | CPU_FTR_TM_COMP)
 #define CPU_FTRS_POWER8E (CPU_FTRS_POWER8 | CPU_FTR_PMAO_BUG)
+#define CPU_FTRS_POWER8_DD1 (CPU_FTRS_POWER8 & ~CPU_FTR_DBELL)
 #define CPU_FTRS_CELL	(CPU_FTR_USE_TB | CPU_FTR_LWSYNC | \
 	    CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_CTRL | \
 	    CPU_FTR_ALTIVEC_COMP | CPU_FTR_MMCRA | CPU_FTR_SMT | \
diff --git a/arch/powerpc/include/asm/kvm_book3s_64.h b/arch/powerpc/include/asm/kvm_book3s_64.h
index fddb72b48ce9..d645428a65a4 100644
--- a/arch/powerpc/include/asm/kvm_book3s_64.h
+++ b/arch/powerpc/include/asm/kvm_book3s_64.h
@@ -198,8 +198,10 @@ static inline unsigned long compute_tlbie_rb(unsigned long v, unsigned long r,
 	return rb;
 }
 
-static inline unsigned long hpte_page_size(unsigned long h, unsigned long l)
+static inline unsigned long __hpte_page_size(unsigned long h, unsigned long l,
+					     bool is_base_size)
 {
+
 	int size, a_psize;
 	/* Look at the 8 bit LP value */
 	unsigned int lp = (l >> LP_SHIFT) & ((1 << LP_BITS) - 1);
@@ -214,14 +216,27 @@ static inline unsigned long hpte_page_size(unsigned long h, unsigned long l)
 				continue;
 
 			a_psize = __hpte_actual_psize(lp, size);
-			if (a_psize != -1)
+			if (a_psize != -1) {
+				if (is_base_size)
+					return 1ul << mmu_psize_defs[size].shift;
 				return 1ul << mmu_psize_defs[a_psize].shift;
+			}
 		}
 
 	}
 	return 0;
 }
 
+static inline unsigned long hpte_page_size(unsigned long h, unsigned long l)
+{
+	return __hpte_page_size(h, l, 0);
+}
+
+static inline unsigned long hpte_base_page_size(unsigned long h, unsigned long l)
+{
+	return __hpte_page_size(h, l, 1);
+}
+
 static inline unsigned long hpte_rpn(unsigned long ptel, unsigned long psize)
 {
 	return ((ptel & HPTE_R_RPN) & ~(psize - 1)) >> PAGE_SHIFT;
diff --git a/arch/powerpc/include/asm/mmu-hash64.h b/arch/powerpc/include/asm/mmu-hash64.h
index 807014dde821..c2b4dcf23d03 100644
--- a/arch/powerpc/include/asm/mmu-hash64.h
+++ b/arch/powerpc/include/asm/mmu-hash64.h
@@ -22,6 +22,7 @@
  */
 #include <asm/pgtable-ppc64.h>
 #include <asm/bug.h>
+#include <asm/processor.h>
 
 /*
  * Segment table
@@ -496,7 +497,7 @@ extern void slb_set_size(u16 size);
  */
 struct subpage_prot_table {
 	unsigned long maxaddr;	/* only addresses < this are protected */
-	unsigned int **protptrs[2];
+	unsigned int **protptrs[(TASK_SIZE_USER64 >> 43)];
 	unsigned int *low_prot[4];
 };
 
diff --git a/arch/powerpc/include/asm/mmu.h b/arch/powerpc/include/asm/mmu.h
index f8d1d6dcf7db..e61f24ed4e65 100644
--- a/arch/powerpc/include/asm/mmu.h
+++ b/arch/powerpc/include/asm/mmu.h
@@ -19,8 +19,7 @@
 #define MMU_FTR_TYPE_40x		ASM_CONST(0x00000004)
 #define MMU_FTR_TYPE_44x		ASM_CONST(0x00000008)
 #define MMU_FTR_TYPE_FSL_E		ASM_CONST(0x00000010)
-#define MMU_FTR_TYPE_3E			ASM_CONST(0x00000020)
-#define MMU_FTR_TYPE_47x		ASM_CONST(0x00000040)
+#define MMU_FTR_TYPE_47x		ASM_CONST(0x00000020)
 
 /*
  * This is individual features
@@ -106,13 +105,6 @@
 				MMU_FTR_CI_LARGE_PAGE
 #define MMU_FTRS_PA6T		MMU_FTRS_DEFAULT_HPTE_ARCH_V2 | \
 				MMU_FTR_CI_LARGE_PAGE | MMU_FTR_NO_SLBIE_B
-#define MMU_FTRS_A2		MMU_FTR_TYPE_3E | MMU_FTR_USE_TLBILX | \
-				MMU_FTR_USE_TLBIVAX_BCAST | \
-				MMU_FTR_LOCK_BCAST_INVAL | \
-				MMU_FTR_USE_TLBRSRV | \
-				MMU_FTR_USE_PAIRED_MAS | \
-				MMU_FTR_TLBIEL | \
-				MMU_FTR_16M_PAGE
 #ifndef __ASSEMBLY__
 #include <asm/cputable.h>
 
diff --git a/arch/powerpc/include/asm/opal.h b/arch/powerpc/include/asm/opal.h
index 460018889ba9..0da1dbd42e02 100644
--- a/arch/powerpc/include/asm/opal.h
+++ b/arch/powerpc/include/asm/opal.h
@@ -12,27 +12,7 @@
 #ifndef __OPAL_H
 #define __OPAL_H
 
-/****** Takeover interface ********/
-
-/* PAPR H-Call used to querty the HAL existence and/or instanciate
- * it from within pHyp (tech preview only).
- *
- * This is exclusively used in prom_init.c
- */
-
 #ifndef __ASSEMBLY__
-
-struct opal_takeover_args {
-	u64	k_image;		/* r4 */
-	u64	k_size;			/* r5 */
-	u64	k_entry;		/* r6 */
-	u64	k_entry2;		/* r7 */
-	u64	hal_addr;		/* r8 */
-	u64	rd_image;		/* r9 */
-	u64	rd_size;		/* r10 */
-	u64	rd_loc;			/* r11 */
-};
-
 /*
  * SG entry
  *
@@ -55,15 +35,6 @@ struct opal_sg_list {
 /* We calculate number of sg entries based on PAGE_SIZE */
 #define SG_ENTRIES_PER_NODE ((PAGE_SIZE - 16) / sizeof(struct opal_sg_entry))
 
-extern long opal_query_takeover(u64 *hal_size, u64 *hal_align);
-
-extern long opal_do_takeover(struct opal_takeover_args *args);
-
-struct rtas_args;
-extern int opal_enter_rtas(struct rtas_args *args,
-			   unsigned long data,
-			   unsigned long entry);
-
 #endif /* __ASSEMBLY__ */
 
 /****** OPAL APIs ******/
diff --git a/arch/powerpc/include/asm/perf_event_server.h b/arch/powerpc/include/asm/perf_event_server.h
index 9ed737146dbb..b3e936027b26 100644
--- a/arch/powerpc/include/asm/perf_event_server.h
+++ b/arch/powerpc/include/asm/perf_event_server.h
@@ -61,8 +61,7 @@ struct power_pmu {
 #define PPMU_SIAR_VALID		0x00000010 /* Processor has SIAR Valid bit */
 #define PPMU_HAS_SSLOT		0x00000020 /* Has sampled slot in MMCRA */
 #define PPMU_HAS_SIER		0x00000040 /* Has SIER */
-#define PPMU_BHRB		0x00000080 /* has BHRB feature enabled */
-#define PPMU_EBB		0x00000100 /* supports event based branch */
+#define PPMU_ARCH_207S		0x00000080 /* PMC is architecture v2.07S */
 
 /*
  * Values for flags to get_alternatives()
diff --git a/arch/powerpc/include/asm/ppc_asm.h b/arch/powerpc/include/asm/ppc_asm.h
index 9ea266eae33e..7e4612528546 100644
--- a/arch/powerpc/include/asm/ppc_asm.h
+++ b/arch/powerpc/include/asm/ppc_asm.h
@@ -277,6 +277,8 @@ n:
 	.globl n;	\
 n:
 
+#define _GLOBAL_TOC(name) _GLOBAL(name)
+
 #define _KPROBE(n)	\
 	.section ".kprobes.text","a";	\
 	.globl	n;	\
diff --git a/arch/powerpc/include/asm/swab.h b/arch/powerpc/include/asm/swab.h
index b9bd1ca944d0..96f59de61855 100644
--- a/arch/powerpc/include/asm/swab.h
+++ b/arch/powerpc/include/asm/swab.h
@@ -9,10 +9,6 @@
 
 #include <uapi/asm/swab.h>
 
-#ifdef __GNUC__
-#ifndef __powerpc64__
-#endif /* __powerpc64__ */
-
 static __inline__ __u16 ld_le16(const volatile __u16 *addr)
 {
 	__u16 val;
@@ -20,19 +16,12 @@ static __inline__ __u16 ld_le16(const volatile __u16 *addr)
 	__asm__ __volatile__ ("lhbrx %0,0,%1" : "=r" (val) : "r" (addr), "m" (*addr));
 	return val;
 }
-#define __arch_swab16p ld_le16
 
 static __inline__ void st_le16(volatile __u16 *addr, const __u16 val)
 {
 	__asm__ __volatile__ ("sthbrx %1,0,%2" : "=m" (*addr) : "r" (val), "r" (addr));
 }
 
-static inline void __arch_swab16s(__u16 *addr)
-{
-	st_le16(addr, *addr);
-}
-#define __arch_swab16s __arch_swab16s
-
 static __inline__ __u32 ld_le32(const volatile __u32 *addr)
 {
 	__u32 val;
@@ -40,42 +29,10 @@ static __inline__ __u32 ld_le32(const volatile __u32 *addr)
 	__asm__ __volatile__ ("lwbrx %0,0,%1" : "=r" (val) : "r" (addr), "m" (*addr));
 	return val;
 }
-#define __arch_swab32p ld_le32
 
 static __inline__ void st_le32(volatile __u32 *addr, const __u32 val)
 {
 	__asm__ __volatile__ ("stwbrx %1,0,%2" : "=m" (*addr) : "r" (val), "r" (addr));
 }
 
-static inline void __arch_swab32s(__u32 *addr)
-{
-	st_le32(addr, *addr);
-}
-#define __arch_swab32s __arch_swab32s
-
-static inline __attribute_const__ __u16 __arch_swab16(__u16 value)
-{
-	__u16 result;
-
-	__asm__("rlwimi %0,%1,8,16,23"
-	    : "=r" (result)
-	    : "r" (value), "0" (value >> 8));
-	return result;
-}
-#define __arch_swab16 __arch_swab16
-
-static inline __attribute_const__ __u32 __arch_swab32(__u32 value)
-{
-	__u32 result;
-
-	__asm__("rlwimi %0,%1,24,16,23\n\t"
-	    "rlwimi %0,%1,8,8,15\n\t"
-	    "rlwimi %0,%1,24,0,7"
-	    : "=r" (result)
-	    : "r" (value), "0" (value >> 24));
-	return result;
-}
-#define __arch_swab32 __arch_swab32
-
-#endif /* __GNUC__ */
 #endif /* _ASM_POWERPC_SWAB_H */
diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c
index 965291b4c2fa..0c157642c2a1 100644
--- a/arch/powerpc/kernel/cputable.c
+++ b/arch/powerpc/kernel/cputable.c
@@ -527,6 +527,26 @@ static struct cpu_spec __initdata cpu_specs[] = {
 		.machine_check_early	= __machine_check_early_realmode_p8,
 		.platform		= "power8",
 	},
+	{	/* Power8 DD1: Does not support doorbell IPIs */
+		.pvr_mask		= 0xffffff00,
+		.pvr_value		= 0x004d0100,
+		.cpu_name		= "POWER8 (raw)",
+		.cpu_features		= CPU_FTRS_POWER8_DD1,
+		.cpu_user_features	= COMMON_USER_POWER8,
+		.cpu_user_features2	= COMMON_USER2_POWER8,
+		.mmu_features		= MMU_FTRS_POWER8,
+		.icache_bsize		= 128,
+		.dcache_bsize		= 128,
+		.num_pmcs		= 6,
+		.pmc_type		= PPC_PMC_IBM,
+		.oprofile_cpu_type	= "ppc64/power8",
+		.oprofile_type		= PPC_OPROFILE_INVALID,
+		.cpu_setup		= __setup_cpu_power8,
+		.cpu_restore		= __restore_cpu_power8,
+		.flush_tlb		= __flush_tlb_power8,
+		.machine_check_early	= __machine_check_early_realmode_p8,
+		.platform		= "power8",
+	},
 	{	/* Power8 */
 		.pvr_mask		= 0xffff0000,
 		.pvr_value		= 0x004d0000,
diff --git a/arch/powerpc/kernel/ftrace.c b/arch/powerpc/kernel/ftrace.c
index f202d0731b06..d178834fe508 100644
--- a/arch/powerpc/kernel/ftrace.c
+++ b/arch/powerpc/kernel/ftrace.c
@@ -10,6 +10,8 @@
  *
  */
 
+#define pr_fmt(fmt) "ftrace-powerpc: " fmt
+
 #include <linux/spinlock.h>
 #include <linux/hardirq.h>
 #include <linux/uaccess.h>
@@ -105,7 +107,7 @@ __ftrace_make_nop(struct module *mod,
 		  struct dyn_ftrace *rec, unsigned long addr)
 {
 	unsigned int op;
-	unsigned long ptr;
+	unsigned long entry, ptr;
 	unsigned long ip = rec->ip;
 	void *tramp;
 
@@ -115,7 +117,7 @@ __ftrace_make_nop(struct module *mod,
 
 	/* Make sure that that this is still a 24bit jump */
 	if (!is_bl_op(op)) {
-		printk(KERN_ERR "Not expected bl: opcode is %x\n", op);
+		pr_err("Not expected bl: opcode is %x\n", op);
 		return -EINVAL;
 	}
 
@@ -125,21 +127,21 @@ __ftrace_make_nop(struct module *mod,
 	pr_devel("ip:%lx jumps to %p", ip, tramp);
 
 	if (!is_module_trampoline(tramp)) {
-		printk(KERN_ERR "Not a trampoline\n");
+		pr_err("Not a trampoline\n");
 		return -EINVAL;
 	}
 
 	if (module_trampoline_target(mod, tramp, &ptr)) {
-		printk(KERN_ERR "Failed to get trampoline target\n");
+		pr_err("Failed to get trampoline target\n");
 		return -EFAULT;
 	}
 
 	pr_devel("trampoline target %lx", ptr);
 
+	entry = ppc_global_function_entry((void *)addr);
 	/* This should match what was called */
-	if (ptr != ppc_function_entry((void *)addr)) {
-		printk(KERN_ERR "addr %lx does not match expected %lx\n",
-			ptr, ppc_function_entry((void *)addr));
+	if (ptr != entry) {
+		pr_err("addr %lx does not match expected %lx\n", ptr, entry);
 		return -EINVAL;
 	}
 
@@ -179,7 +181,7 @@ __ftrace_make_nop(struct module *mod,
 
 	/* Make sure that that this is still a 24bit jump */
 	if (!is_bl_op(op)) {
-		printk(KERN_ERR "Not expected bl: opcode is %x\n", op);
+		pr_err("Not expected bl: opcode is %x\n", op);
 		return -EINVAL;
 	}
 
@@ -198,7 +200,7 @@ __ftrace_make_nop(struct module *mod,
 
 	/* Find where the trampoline jumps to */
 	if (probe_kernel_read(jmp, (void *)tramp, sizeof(jmp))) {
-		printk(KERN_ERR "Failed to read %lx\n", tramp);
+		pr_err("Failed to read %lx\n", tramp);
 		return -EFAULT;
 	}
 
@@ -209,7 +211,7 @@ __ftrace_make_nop(struct module *mod,
 	    ((jmp[1] & 0xffff0000) != 0x398c0000) ||
 	    (jmp[2] != 0x7d8903a6) ||
 	    (jmp[3] != 0x4e800420)) {
-		printk(KERN_ERR "Not a trampoline\n");
+		pr_err("Not a trampoline\n");
 		return -EINVAL;
 	}
 
@@ -221,8 +223,7 @@ __ftrace_make_nop(struct module *mod,
 	pr_devel(" %lx ", tramp);
 
 	if (tramp != addr) {
-		printk(KERN_ERR
-		       "Trampoline location %08lx does not match addr\n",
+		pr_err("Trampoline location %08lx does not match addr\n",
 		       tramp);
 		return -EINVAL;
 	}
@@ -263,15 +264,13 @@ int ftrace_make_nop(struct module *mod,
 	 */
 	if (!rec->arch.mod) {
 		if (!mod) {
-			printk(KERN_ERR "No module loaded addr=%lx\n",
-			       addr);
+			pr_err("No module loaded addr=%lx\n", addr);
 			return -EFAULT;
 		}
 		rec->arch.mod = mod;
 	} else if (mod) {
 		if (mod != rec->arch.mod) {
-			printk(KERN_ERR
-			       "Record mod %p not equal to passed in mod %p\n",
+			pr_err("Record mod %p not equal to passed in mod %p\n",
 			       rec->arch.mod, mod);
 			return -EINVAL;
 		}
@@ -307,26 +306,25 @@ __ftrace_make_call(struct dyn_ftrace *rec, unsigned long addr)
 	 * The load offset is different depending on the ABI. For simplicity
 	 * just mask it out when doing the compare.
 	 */
-	if ((op[0] != 0x48000008) || ((op[1] & 0xffff00000) != 0xe8410000)) {
-		printk(KERN_ERR "Unexpected call sequence: %x %x\n",
-			op[0], op[1]);
+	if ((op[0] != 0x48000008) || ((op[1] & 0xffff0000) != 0xe8410000)) {
+		pr_err("Unexpected call sequence: %x %x\n", op[0], op[1]);
 		return -EINVAL;
 	}
 
 	/* If we never set up a trampoline to ftrace_caller, then bail */
 	if (!rec->arch.mod->arch.tramp) {
-		printk(KERN_ERR "No ftrace trampoline\n");
+		pr_err("No ftrace trampoline\n");
 		return -EINVAL;
 	}
 
 	/* Ensure branch is within 24 bits */
-	if (create_branch(ip, rec->arch.mod->arch.tramp, BRANCH_SET_LINK)) {
-		printk(KERN_ERR "Branch out of range");
+	if (!create_branch(ip, rec->arch.mod->arch.tramp, BRANCH_SET_LINK)) {
+		pr_err("Branch out of range\n");
 		return -EINVAL;
 	}
 
 	if (patch_branch(ip, rec->arch.mod->arch.tramp, BRANCH_SET_LINK)) {
-		printk(KERN_ERR "REL24 out of range!\n");
+		pr_err("REL24 out of range!\n");
 		return -EINVAL;
 	}
 
@@ -345,13 +343,13 @@ __ftrace_make_call(struct dyn_ftrace *rec, unsigned long addr)
 
 	/* It should be pointing to a nop */
 	if (op != PPC_INST_NOP) {
-		printk(KERN_ERR "Expected NOP but have %x\n", op);
+		pr_err("Expected NOP but have %x\n", op);
 		return -EINVAL;
 	}
 
 	/* If we never set up a trampoline to ftrace_caller, then bail */
 	if (!rec->arch.mod->arch.tramp) {
-		printk(KERN_ERR "No ftrace trampoline\n");
+		pr_err("No ftrace trampoline\n");
 		return -EINVAL;
 	}
 
@@ -359,7 +357,7 @@ __ftrace_make_call(struct dyn_ftrace *rec, unsigned long addr)
 	op = create_branch((unsigned int *)ip,
 			   rec->arch.mod->arch.tramp, BRANCH_SET_LINK);
 	if (!op) {
-		printk(KERN_ERR "REL24 out of range!\n");
+		pr_err("REL24 out of range!\n");
 		return -EINVAL;
 	}
 
@@ -397,7 +395,7 @@ int ftrace_make_call(struct dyn_ftrace *rec, unsigned long addr)
 	 * already have a module defined.
 	 */
 	if (!rec->arch.mod) {
-		printk(KERN_ERR "No module loaded\n");
+		pr_err("No module loaded\n");
 		return -EINVAL;
 	}
 
diff --git a/arch/powerpc/kernel/idle_power7.S b/arch/powerpc/kernel/idle_power7.S
index 2480256272d4..5cf3d367190d 100644
--- a/arch/powerpc/kernel/idle_power7.S
+++ b/arch/powerpc/kernel/idle_power7.S
@@ -131,7 +131,7 @@ _GLOBAL(power7_nap)
 
 _GLOBAL(power7_sleep)
 	li	r3,1
-	li	r4,0
+	li	r4,1
 	b	power7_powersave_common
 	/* No return */
 
diff --git a/arch/powerpc/kernel/iomap.c b/arch/powerpc/kernel/iomap.c
index b82227e7e21b..12e48d56f771 100644
--- a/arch/powerpc/kernel/iomap.c
+++ b/arch/powerpc/kernel/iomap.c
@@ -23,7 +23,7 @@ unsigned int ioread16(void __iomem *addr)
 }
 unsigned int ioread16be(void __iomem *addr)
 {
-	return in_be16(addr);
+	return readw_be(addr);
 }
 unsigned int ioread32(void __iomem *addr)
 {
@@ -31,7 +31,7 @@ unsigned int ioread32(void __iomem *addr)
 }
 unsigned int ioread32be(void __iomem *addr)
 {
-	return in_be32(addr);
+	return readl_be(addr);
 }
 EXPORT_SYMBOL(ioread8);
 EXPORT_SYMBOL(ioread16);
@@ -49,7 +49,7 @@ void iowrite16(u16 val, void __iomem *addr)
 }
 void iowrite16be(u16 val, void __iomem *addr)
 {
-	out_be16(addr, val);
+	writew_be(val, addr);
 }
 void iowrite32(u32 val, void __iomem *addr)
 {
@@ -57,7 +57,7 @@ void iowrite32(u32 val, void __iomem *addr)
 }
 void iowrite32be(u32 val, void __iomem *addr)
 {
-	out_be32(addr, val);
+	writel_be(val, addr);
 }
 EXPORT_SYMBOL(iowrite8);
 EXPORT_SYMBOL(iowrite16);
@@ -75,15 +75,15 @@ EXPORT_SYMBOL(iowrite32be);
  */
 void ioread8_rep(void __iomem *addr, void *dst, unsigned long count)
 {
-	_insb((u8 __iomem *) addr, dst, count);
+	readsb(addr, dst, count);
 }
 void ioread16_rep(void __iomem *addr, void *dst, unsigned long count)
 {
-	_insw_ns((u16 __iomem *) addr, dst, count);
+	readsw(addr, dst, count);
 }
 void ioread32_rep(void __iomem *addr, void *dst, unsigned long count)
 {
-	_insl_ns((u32 __iomem *) addr, dst, count);
+	readsl(addr, dst, count);
 }
 EXPORT_SYMBOL(ioread8_rep);
 EXPORT_SYMBOL(ioread16_rep);
@@ -91,15 +91,15 @@ EXPORT_SYMBOL(ioread32_rep);
 
 void iowrite8_rep(void __iomem *addr, const void *src, unsigned long count)
 {
-	_outsb((u8 __iomem *) addr, src, count);
+	writesb(addr, src, count);
 }
 void iowrite16_rep(void __iomem *addr, const void *src, unsigned long count)
 {
-	_outsw_ns((u16 __iomem *) addr, src, count);
+	writesw(addr, src, count);
 }
 void iowrite32_rep(void __iomem *addr, const void *src, unsigned long count)
 {
-	_outsl_ns((u32 __iomem *) addr, src, count);
+	writesl(addr, src, count);
 }
 EXPORT_SYMBOL(iowrite8_rep);
 EXPORT_SYMBOL(iowrite16_rep);
diff --git a/arch/powerpc/kernel/kprobes.c b/arch/powerpc/kernel/kprobes.c
index 90fab64d911d..2f72af82513c 100644
--- a/arch/powerpc/kernel/kprobes.c
+++ b/arch/powerpc/kernel/kprobes.c
@@ -32,6 +32,7 @@
 #include <linux/module.h>
 #include <linux/kdebug.h>
 #include <linux/slab.h>
+#include <asm/code-patching.h>
 #include <asm/cacheflush.h>
 #include <asm/sstep.h>
 #include <asm/uaccess.h>
@@ -491,12 +492,10 @@ int __kprobes kprobe_exceptions_notify(struct notifier_block *self,
 	return ret;
 }
 
-#ifdef CONFIG_PPC64
 unsigned long arch_deref_entry_point(void *entry)
 {
-	return ((func_descr_t *)entry)->entry;
+	return ppc_global_function_entry(entry);
 }
-#endif
 
 int __kprobes setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs)
 {
@@ -508,8 +507,12 @@ int __kprobes setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs)
 	/* setup return addr to the jprobe handler routine */
 	regs->nip = arch_deref_entry_point(jp->entry);
 #ifdef CONFIG_PPC64
+#if defined(_CALL_ELF) && _CALL_ELF == 2
+	regs->gpr[12] = (unsigned long)jp->entry;
+#else
 	regs->gpr[2] = (unsigned long)(((func_descr_t *)jp->entry)->toc);
 #endif
+#endif
 
 	return 1;
 }
diff --git a/arch/powerpc/kernel/module_64.c b/arch/powerpc/kernel/module_64.c
index 077d2ce6c5a7..d807ee626af9 100644
--- a/arch/powerpc/kernel/module_64.c
+++ b/arch/powerpc/kernel/module_64.c
@@ -315,8 +315,17 @@ static void dedotify_versions(struct modversion_info *vers,
 	struct modversion_info *end;
 
 	for (end = (void *)vers + size; vers < end; vers++)
-		if (vers->name[0] == '.')
+		if (vers->name[0] == '.') {
 			memmove(vers->name, vers->name+1, strlen(vers->name));
+#ifdef ARCH_RELOCATES_KCRCTAB
+			/* The TOC symbol has no CRC computed. To avoid CRC
+			 * check failing, we must force it to the expected
+			 * value (see CRC check in module.c).
+			 */
+			if (!strcmp(vers->name, "TOC."))
+				vers->crc = -(unsigned long)reloc_start;
+#endif
+		}
 }
 
 /* Undefined symbols which refer to .funcname, hack to funcname (or .TOC.) */
diff --git a/arch/powerpc/kernel/prom.c b/arch/powerpc/kernel/prom.c
index 613a860a203c..b694b0730971 100644
--- a/arch/powerpc/kernel/prom.c
+++ b/arch/powerpc/kernel/prom.c
@@ -662,13 +662,6 @@ void __init early_init_devtree(void *params)
 	of_scan_flat_dt(early_init_dt_scan_fw_dump, NULL);
 #endif
 
-	/* Pre-initialize the cmd_line with the content of boot_commmand_line,
-	 * which will be empty except when the content of the variable has
-	 * been overriden by a bootloading mechanism. This happens typically
-	 * with HAL takeover
-	 */
-	strlcpy(cmd_line, boot_command_line, COMMAND_LINE_SIZE);
-
 	/* Retrieve various informations from the /chosen node of the
 	 * device-tree, including the platform type, initrd location and
 	 * size, TCE reserve, and more ...
diff --git a/arch/powerpc/kernel/prom_init.c b/arch/powerpc/kernel/prom_init.c
index 078145acf7fb..1a85d8f96739 100644
--- a/arch/powerpc/kernel/prom_init.c
+++ b/arch/powerpc/kernel/prom_init.c
@@ -1268,201 +1268,6 @@ static u64 __initdata prom_opal_base;
 static u64 __initdata prom_opal_entry;
 #endif
 
-#ifdef __BIG_ENDIAN__
-/* XXX Don't change this structure without updating opal-takeover.S */
-static struct opal_secondary_data {
-	s64				ack;	/*  0 */
-	u64				go;	/*  8 */
-	struct opal_takeover_args	args;	/* 16 */
-} opal_secondary_data;
-
-static u64 __initdata prom_opal_align;
-static u64 __initdata prom_opal_size;
-static int __initdata prom_rtas_start_cpu;
-static u64 __initdata prom_rtas_data;
-static u64 __initdata prom_rtas_entry;
-
-extern char opal_secondary_entry;
-
-static void __init prom_query_opal(void)
-{
-	long rc;
-
-	/* We must not query for OPAL presence on a machine that
-	 * supports TNK takeover (970 blades), as this uses the same
-	 * h-call with different arguments and will crash
-	 */
-	if (PHANDLE_VALID(call_prom("finddevice", 1, 1,
-				    ADDR("/tnk-memory-map")))) {
-		prom_printf("TNK takeover detected, skipping OPAL check\n");
-		return;
-	}
-
-	prom_printf("Querying for OPAL presence... ");
-
-	rc = opal_query_takeover(&prom_opal_size,
-				 &prom_opal_align);
-	prom_debug("(rc = %ld) ", rc);
-	if (rc != 0) {
-		prom_printf("not there.\n");
-		return;
-	}
-	of_platform = PLATFORM_OPAL;
-	prom_printf(" there !\n");
-	prom_debug("  opal_size  = 0x%lx\n", prom_opal_size);
-	prom_debug("  opal_align = 0x%lx\n", prom_opal_align);
-	if (prom_opal_align < 0x10000)
-		prom_opal_align = 0x10000;
-}
-
-static int __init prom_rtas_call(int token, int nargs, int nret,
-				 int *outputs, ...)
-{
-	struct rtas_args rtas_args;
-	va_list list;
-	int i;
-
-	rtas_args.token = token;
-	rtas_args.nargs = nargs;
-	rtas_args.nret  = nret;
-	rtas_args.rets  = (rtas_arg_t *)&(rtas_args.args[nargs]);
-	va_start(list, outputs);
-	for (i = 0; i < nargs; ++i)
-		rtas_args.args[i] = va_arg(list, rtas_arg_t);
-	va_end(list);
-
-	for (i = 0; i < nret; ++i)
-		rtas_args.rets[i] = 0;
-
-	opal_enter_rtas(&rtas_args, prom_rtas_data,
-			prom_rtas_entry);
-
-	if (nret > 1 && outputs != NULL)
-		for (i = 0; i < nret-1; ++i)
-			outputs[i] = rtas_args.rets[i+1];
-	return (nret > 0)? rtas_args.rets[0]: 0;
-}
-
-static void __init prom_opal_hold_cpus(void)
-{
-	int i, cnt, cpu, rc;
-	long j;
-	phandle node;
-	char type[64];
-	u32 servers[8];
-	void *entry = (unsigned long *)&opal_secondary_entry;
-	struct opal_secondary_data *data = &opal_secondary_data;
-
-	prom_debug("prom_opal_hold_cpus: start...\n");
-	prom_debug("    - entry       = 0x%x\n", entry);
-	prom_debug("    - data        = 0x%x\n", data);
-
-	data->ack = -1;
-	data->go = 0;
-
-	/* look for cpus */
-	for (node = 0; prom_next_node(&node); ) {
-		type[0] = 0;
-		prom_getprop(node, "device_type", type, sizeof(type));
-		if (strcmp(type, "cpu") != 0)
-			continue;
-
-		/* Skip non-configured cpus. */
-		if (prom_getprop(node, "status", type, sizeof(type)) > 0)
-			if (strcmp(type, "okay") != 0)
-				continue;
-
-		cnt = prom_getprop(node, "ibm,ppc-interrupt-server#s", servers,
-			     sizeof(servers));
-		if (cnt == PROM_ERROR)
-			break;
-		cnt >>= 2;
-		for (i = 0; i < cnt; i++) {
-			cpu = servers[i];
-			prom_debug("CPU %d ... ", cpu);
-			if (cpu == prom.cpu) {
-				prom_debug("booted !\n");
-				continue;
-			}
-			prom_debug("starting ... ");
-
-			/* Init the acknowledge var which will be reset by
-			 * the secondary cpu when it awakens from its OF
-			 * spinloop.
-			 */
-			data->ack = -1;
-			rc = prom_rtas_call(prom_rtas_start_cpu, 3, 1,
-					    NULL, cpu, entry, data);
-			prom_debug("rtas rc=%d ...", rc);
-
-			for (j = 0; j < 100000000 && data->ack == -1; j++) {
-				HMT_low();
-				mb();
-			}
-			HMT_medium();
-			if (data->ack != -1)
-				prom_debug("done, PIR=0x%x\n", data->ack);
-			else
-				prom_debug("timeout !\n");
-		}
-	}
-	prom_debug("prom_opal_hold_cpus: end...\n");
-}
-
-static void __init prom_opal_takeover(void)
-{
-	struct opal_secondary_data *data = &opal_secondary_data;
-	struct opal_takeover_args *args = &data->args;
-	u64 align = prom_opal_align;
-	u64 top_addr, opal_addr;
-
-	args->k_image	= (u64)_stext;
-	args->k_size	= _end - _stext;
-	args->k_entry	= 0;
-	args->k_entry2	= 0x60;
-
-	top_addr = _ALIGN_UP(args->k_size, align);
-
-	if (prom_initrd_start != 0) {
-		args->rd_image = prom_initrd_start;
-		args->rd_size = prom_initrd_end - args->rd_image;
-		args->rd_loc = top_addr;
-		top_addr = _ALIGN_UP(args->rd_loc + args->rd_size, align);
-	}
-
-	/* Pickup an address for the HAL. We want to go really high
-	 * up to avoid problem with future kexecs. On the other hand
-	 * we don't want to be all over the TCEs on P5IOC2 machines
-	 * which are going to be up there too. We assume the machine
-	 * has plenty of memory, and we ask for the HAL for now to
-	 * be just below the 1G point, or above the initrd
-	 */
-	opal_addr = _ALIGN_DOWN(0x40000000 - prom_opal_size, align);
-	if (opal_addr < top_addr)
-		opal_addr = top_addr;
-	args->hal_addr = opal_addr;
-
-	/* Copy the command line to the kernel image */
-	strlcpy(boot_command_line, prom_cmd_line,
-		COMMAND_LINE_SIZE);
-
-	prom_debug("  k_image    = 0x%lx\n", args->k_image);
-	prom_debug("  k_size     = 0x%lx\n", args->k_size);
-	prom_debug("  k_entry    = 0x%lx\n", args->k_entry);
-	prom_debug("  k_entry2   = 0x%lx\n", args->k_entry2);
-	prom_debug("  hal_addr   = 0x%lx\n", args->hal_addr);
-	prom_debug("  rd_image   = 0x%lx\n", args->rd_image);
-	prom_debug("  rd_size    = 0x%lx\n", args->rd_size);
-	prom_debug("  rd_loc     = 0x%lx\n", args->rd_loc);
-	prom_printf("Performing OPAL takeover,this can take a few minutes..\n");
-	prom_close_stdin();
-	mb();
-	data->go = 1;
-	for (;;)
-		opal_do_takeover(args);
-}
-#endif /* __BIG_ENDIAN__ */
-
 /*
  * Allocate room for and instantiate OPAL
  */
@@ -1597,12 +1402,6 @@ static void __init prom_instantiate_rtas(void)
 			 &val, sizeof(val)) != PROM_ERROR)
 		rtas_has_query_cpu_stopped = true;
 
-#if defined(CONFIG_PPC_POWERNV) && defined(__BIG_ENDIAN__)
-	/* PowerVN takeover hack */
-	prom_rtas_data = base;
-	prom_rtas_entry = entry;
-	prom_getprop(rtas_node, "start-cpu", &prom_rtas_start_cpu, 4);
-#endif
 	prom_debug("rtas base     = 0x%x\n", base);
 	prom_debug("rtas entry    = 0x%x\n", entry);
 	prom_debug("rtas size     = 0x%x\n", (long)size);
@@ -3027,16 +2826,6 @@ unsigned long __init prom_init(unsigned long r3, unsigned long r4,
 		prom_instantiate_rtas();
 
 #ifdef CONFIG_PPC_POWERNV
-#ifdef __BIG_ENDIAN__
-	/* Detect HAL and try instanciating it & doing takeover */
-	if (of_platform == PLATFORM_PSERIES_LPAR) {
-		prom_query_opal();
-		if (of_platform == PLATFORM_OPAL) {
-			prom_opal_hold_cpus();
-			prom_opal_takeover();
-		}
-	} else
-#endif /* __BIG_ENDIAN__ */
 	if (of_platform == PLATFORM_OPAL)
 		prom_instantiate_opal();
 #endif /* CONFIG_PPC_POWERNV */
diff --git a/arch/powerpc/kernel/prom_init_check.sh b/arch/powerpc/kernel/prom_init_check.sh
index 77aa1e95e904..fe8e54b9ef7d 100644
--- a/arch/powerpc/kernel/prom_init_check.sh
+++ b/arch/powerpc/kernel/prom_init_check.sh
@@ -21,9 +21,7 @@ _end enter_prom memcpy memset reloc_offset __secondary_hold
 __secondary_hold_acknowledge __secondary_hold_spinloop __start
 strcmp strcpy strlcpy strlen strncmp strstr logo_linux_clut224
 reloc_got2 kernstart_addr memstart_addr linux_banner _stext
-opal_query_takeover opal_do_takeover opal_enter_rtas opal_secondary_entry
-boot_command_line __prom_init_toc_start __prom_init_toc_end
-btext_setup_display TOC."
+__prom_init_toc_start __prom_init_toc_end btext_setup_display TOC."
 
 NM="$1"
 OBJ="$2"
diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
index e239df3768ac..e5b022c55ccd 100644
--- a/arch/powerpc/kernel/setup-common.c
+++ b/arch/powerpc/kernel/setup-common.c
@@ -469,9 +469,17 @@ void __init smp_setup_cpu_maps(void)
 		}
 
 		for (j = 0; j < nthreads && cpu < nr_cpu_ids; j++) {
+			bool avail;
+
 			DBG("    thread %d -> cpu %d (hard id %d)\n",
 			    j, cpu, be32_to_cpu(intserv[j]));
-			set_cpu_present(cpu, of_device_is_available(dn));
+
+			avail = of_device_is_available(dn);
+			if (!avail)
+				avail = !of_property_match_string(dn,
+						"enable-method", "spin-table");
+
+			set_cpu_present(cpu, avail);
 			set_hard_smp_processor_id(cpu, be32_to_cpu(intserv[j]));
 			set_cpu_possible(cpu, true);
 			cpu++;
diff --git a/arch/powerpc/kernel/signal_32.c b/arch/powerpc/kernel/signal_32.c
index 4e47db686b5d..1bc5a1755ed4 100644
--- a/arch/powerpc/kernel/signal_32.c
+++ b/arch/powerpc/kernel/signal_32.c
@@ -54,7 +54,6 @@
 
 #include "signal.h"
 
-#undef DEBUG_SIG
 
 #ifdef CONFIG_PPC64
 #define sys_rt_sigreturn	compat_sys_rt_sigreturn
@@ -1063,10 +1062,6 @@ int handle_rt_signal32(unsigned long sig, struct k_sigaction *ka,
 	return 1;
 
 badframe:
-#ifdef DEBUG_SIG
-	printk("badframe in handle_rt_signal, regs=%p frame=%p newsp=%lx\n",
-	       regs, frame, newsp);
-#endif
 	if (show_unhandled_signals)
 		printk_ratelimited(KERN_INFO
 				   "%s[%d]: bad frame in handle_rt_signal32: "
@@ -1484,10 +1479,6 @@ int handle_signal32(unsigned long sig, struct k_sigaction *ka,
 	return 1;
 
 badframe:
-#ifdef DEBUG_SIG
-	printk("badframe in handle_signal, regs=%p frame=%p newsp=%lx\n",
-	       regs, frame, newsp);
-#endif
 	if (show_unhandled_signals)
 		printk_ratelimited(KERN_INFO
 				   "%s[%d]: bad frame in handle_signal32: "
diff --git a/arch/powerpc/kernel/signal_64.c b/arch/powerpc/kernel/signal_64.c
index d501dc4dc3e6..97c1e4b683fc 100644
--- a/arch/powerpc/kernel/signal_64.c
+++ b/arch/powerpc/kernel/signal_64.c
@@ -38,7 +38,6 @@
 
 #include "signal.h"
 
-#define DEBUG_SIG 0
 
 #define GP_REGS_SIZE	min(sizeof(elf_gregset_t), sizeof(struct pt_regs))
 #define FP_REGS_SIZE	sizeof(elf_fpregset_t)
@@ -700,10 +699,6 @@ int sys_rt_sigreturn(unsigned long r3, unsigned long r4, unsigned long r5,
 	return 0;
 
 badframe:
-#if DEBUG_SIG
-	printk("badframe in sys_rt_sigreturn, regs=%p uc=%p &uc->uc_mcontext=%p\n",
-	       regs, uc, &uc->uc_mcontext);
-#endif
 	if (show_unhandled_signals)
 		printk_ratelimited(regs->msr & MSR_64BIT ? fmt64 : fmt32,
 				   current->comm, current->pid, "rt_sigreturn",
@@ -809,10 +804,6 @@ int handle_rt_signal64(int signr, struct k_sigaction *ka, siginfo_t *info,
 	return 1;
 
 badframe:
-#if DEBUG_SIG
-	printk("badframe in setup_rt_frame, regs=%p frame=%p newsp=%lx\n",
-	       regs, frame, newsp);
-#endif
 	if (show_unhandled_signals)
 		printk_ratelimited(regs->msr & MSR_64BIT ? fmt64 : fmt32,
 				   current->comm, current->pid, "setup_rt_frame",
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index 51a3ff78838a..1007fb802e6b 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -747,7 +747,7 @@ int setup_profiling_timer(unsigned int multiplier)
 
 #ifdef CONFIG_SCHED_SMT
 /* cpumask of CPUs with asymetric SMT dependancy */
-static const int powerpc_smt_flags(void)
+static int powerpc_smt_flags(void)
 {
 	int flags = SD_SHARE_CPUCAPACITY | SD_SHARE_PKG_RESOURCES;
 
diff --git a/arch/powerpc/kvm/book3s_64_mmu_hv.c b/arch/powerpc/kvm/book3s_64_mmu_hv.c
index 80561074078d..68468d695f12 100644
--- a/arch/powerpc/kvm/book3s_64_mmu_hv.c
+++ b/arch/powerpc/kvm/book3s_64_mmu_hv.c
@@ -1562,7 +1562,7 @@ static ssize_t kvm_htab_write(struct file *file, const char __user *buf,
 				goto out;
 			}
 			if (!rma_setup && is_vrma_hpte(v)) {
-				unsigned long psize = hpte_page_size(v, r);
+				unsigned long psize = hpte_base_page_size(v, r);
 				unsigned long senc = slb_pgsize_encoding(psize);
 				unsigned long lpcr;
 
diff --git a/arch/powerpc/kvm/book3s_hv_interrupts.S b/arch/powerpc/kvm/book3s_hv_interrupts.S
index 8c86422a1e37..731be7478b27 100644
--- a/arch/powerpc/kvm/book3s_hv_interrupts.S
+++ b/arch/powerpc/kvm/book3s_hv_interrupts.S
@@ -127,11 +127,6 @@ BEGIN_FTR_SECTION
 	stw	r10, HSTATE_PMC + 24(r13)
 	stw	r11, HSTATE_PMC + 28(r13)
 END_FTR_SECTION_IFSET(CPU_FTR_ARCH_201)
-BEGIN_FTR_SECTION
-	mfspr	r9, SPRN_SIER
-	std	r8, HSTATE_MMCR + 40(r13)
-	std	r9, HSTATE_MMCR + 48(r13)
-END_FTR_SECTION_IFSET(CPU_FTR_ARCH_207S)
 31:
 
 	/*
diff --git a/arch/powerpc/kvm/book3s_hv_rm_mmu.c b/arch/powerpc/kvm/book3s_hv_rm_mmu.c
index 6e6224318c36..5a24d3c2b6b8 100644
--- a/arch/powerpc/kvm/book3s_hv_rm_mmu.c
+++ b/arch/powerpc/kvm/book3s_hv_rm_mmu.c
@@ -814,13 +814,10 @@ long kvmppc_hv_find_lock_hpte(struct kvm *kvm, gva_t eaddr, unsigned long slb_v,
 			r = hpte[i+1];
 
 			/*
-			 * Check the HPTE again, including large page size
-			 * Since we don't currently allow any MPSS (mixed
-			 * page-size segment) page sizes, it is sufficient
-			 * to check against the actual page size.
+			 * Check the HPTE again, including base page size
 			 */
 			if ((v & valid) && (v & mask) == val &&
-			    hpte_page_size(v, r) == (1ul << pshift))
+			    hpte_base_page_size(v, r) == (1ul << pshift))
 				/* Return with the HPTE still locked */
 				return (hash << 3) + (i >> 1);
 
diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
index 868347ef09fd..558a67df8126 100644
--- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S
+++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
@@ -48,7 +48,7 @@
  *
  * LR = return address to continue at after eventually re-enabling MMU
  */
-_GLOBAL(kvmppc_hv_entry_trampoline)
+_GLOBAL_TOC(kvmppc_hv_entry_trampoline)
 	mflr	r0
 	std	r0, PPC_LR_STKOFF(r1)
 	stdu	r1, -112(r1)
diff --git a/arch/powerpc/kvm/book3s_interrupts.S b/arch/powerpc/kvm/book3s_interrupts.S
index e2c29e381dc7..d044b8b7c69d 100644
--- a/arch/powerpc/kvm/book3s_interrupts.S
+++ b/arch/powerpc/kvm/book3s_interrupts.S
@@ -25,7 +25,11 @@
 #include <asm/exception-64s.h>
 
 #if defined(CONFIG_PPC_BOOK3S_64)
+#if defined(_CALL_ELF) && _CALL_ELF == 2
+#define FUNC(name) 		name
+#else
 #define FUNC(name) 		GLUE(.,name)
+#endif
 #define GET_SHADOW_VCPU(reg)    addi	reg, r13, PACA_SVCPU
 
 #elif defined(CONFIG_PPC_BOOK3S_32)
diff --git a/arch/powerpc/kvm/book3s_rmhandlers.S b/arch/powerpc/kvm/book3s_rmhandlers.S
index 9eec675220e6..16c4d88ba27d 100644
--- a/arch/powerpc/kvm/book3s_rmhandlers.S
+++ b/arch/powerpc/kvm/book3s_rmhandlers.S
@@ -36,7 +36,11 @@
 
 #if defined(CONFIG_PPC_BOOK3S_64)
 
+#if defined(_CALL_ELF) && _CALL_ELF == 2
+#define FUNC(name) 		name
+#else
 #define FUNC(name) 		GLUE(.,name)
+#endif
 
 #elif defined(CONFIG_PPC_BOOK3S_32)
 
@@ -146,7 +150,7 @@ kvmppc_handler_skip_ins:
  * On entry, r4 contains the guest shadow MSR
  * MSR.EE has to be 0 when calling this function
  */
-_GLOBAL(kvmppc_entry_trampoline)
+_GLOBAL_TOC(kvmppc_entry_trampoline)
 	mfmsr	r5
 	LOAD_REG_ADDR(r7, kvmppc_handler_trampoline_enter)
 	toreal(r7)
diff --git a/arch/powerpc/kvm/book3s_rtas.c b/arch/powerpc/kvm/book3s_rtas.c
index edb14ba992b3..ef27fbd5d9c5 100644
--- a/arch/powerpc/kvm/book3s_rtas.c
+++ b/arch/powerpc/kvm/book3s_rtas.c
@@ -23,20 +23,20 @@ static void kvm_rtas_set_xive(struct kvm_vcpu *vcpu, struct rtas_args *args)
 	u32 irq, server, priority;
 	int rc;
 
-	if (args->nargs != 3 || args->nret != 1) {
+	if (be32_to_cpu(args->nargs) != 3 || be32_to_cpu(args->nret) != 1) {
 		rc = -3;
 		goto out;
 	}
 
-	irq = args->args[0];
-	server = args->args[1];
-	priority = args->args[2];
+	irq = be32_to_cpu(args->args[0]);
+	server = be32_to_cpu(args->args[1]);
+	priority = be32_to_cpu(args->args[2]);
 
 	rc = kvmppc_xics_set_xive(vcpu->kvm, irq, server, priority);
 	if (rc)
 		rc = -3;
 out:
-	args->rets[0] = rc;
+	args->rets[0] = cpu_to_be32(rc);
 }
 
 static void kvm_rtas_get_xive(struct kvm_vcpu *vcpu, struct rtas_args *args)
@@ -44,12 +44,12 @@ static void kvm_rtas_get_xive(struct kvm_vcpu *vcpu, struct rtas_args *args)
 	u32 irq, server, priority;
 	int rc;
 
-	if (args->nargs != 1 || args->nret != 3) {
+	if (be32_to_cpu(args->nargs) != 1 || be32_to_cpu(args->nret) != 3) {
 		rc = -3;
 		goto out;
 	}
 
-	irq = args->args[0];
+	irq = be32_to_cpu(args->args[0]);
 
 	server = priority = 0;
 	rc = kvmppc_xics_get_xive(vcpu->kvm, irq, &server, &priority);
@@ -58,10 +58,10 @@ static void kvm_rtas_get_xive(struct kvm_vcpu *vcpu, struct rtas_args *args)
 		goto out;
 	}
 
-	args->rets[1] = server;
-	args->rets[2] = priority;
+	args->rets[1] = cpu_to_be32(server);
+	args->rets[2] = cpu_to_be32(priority);
 out:
-	args->rets[0] = rc;
+	args->rets[0] = cpu_to_be32(rc);
 }
 
 static void kvm_rtas_int_off(struct kvm_vcpu *vcpu, struct rtas_args *args)
@@ -69,18 +69,18 @@ static void kvm_rtas_int_off(struct kvm_vcpu *vcpu, struct rtas_args *args)
 	u32 irq;
 	int rc;
 
-	if (args->nargs != 1 || args->nret != 1) {
+	if (be32_to_cpu(args->nargs) != 1 || be32_to_cpu(args->nret) != 1) {
 		rc = -3;
 		goto out;
 	}
 
-	irq = args->args[0];
+	irq = be32_to_cpu(args->args[0]);
 
 	rc = kvmppc_xics_int_off(vcpu->kvm, irq);
 	if (rc)
 		rc = -3;
 out:
-	args->rets[0] = rc;
+	args->rets[0] = cpu_to_be32(rc);
 }
 
 static void kvm_rtas_int_on(struct kvm_vcpu *vcpu, struct rtas_args *args)
@@ -88,18 +88,18 @@ static void kvm_rtas_int_on(struct kvm_vcpu *vcpu, struct rtas_args *args)
 	u32 irq;
 	int rc;
 
-	if (args->nargs != 1 || args->nret != 1) {
+	if (be32_to_cpu(args->nargs) != 1 || be32_to_cpu(args->nret) != 1) {
 		rc = -3;
 		goto out;
 	}
 
-	irq = args->args[0];
+	irq = be32_to_cpu(args->args[0]);
 
 	rc = kvmppc_xics_int_on(vcpu->kvm, irq);
 	if (rc)
 		rc = -3;
 out:
-	args->rets[0] = rc;
+	args->rets[0] = cpu_to_be32(rc);
 }
 #endif /* CONFIG_KVM_XICS */
 
@@ -205,32 +205,6 @@ int kvm_vm_ioctl_rtas_define_token(struct kvm *kvm, void __user *argp)
 	return rc;
 }
 
-static void kvmppc_rtas_swap_endian_in(struct rtas_args *args)
-{
-#ifdef __LITTLE_ENDIAN__
-	int i;
-
-	args->token = be32_to_cpu(args->token);
-	args->nargs = be32_to_cpu(args->nargs);
-	args->nret = be32_to_cpu(args->nret);
-	for (i = 0; i < args->nargs; i++)
-		args->args[i] = be32_to_cpu(args->args[i]);
-#endif
-}
-
-static void kvmppc_rtas_swap_endian_out(struct rtas_args *args)
-{
-#ifdef __LITTLE_ENDIAN__
-	int i;
-
-	for (i = 0; i < args->nret; i++)
-		args->args[i] = cpu_to_be32(args->args[i]);
-	args->token = cpu_to_be32(args->token);
-	args->nargs = cpu_to_be32(args->nargs);
-	args->nret = cpu_to_be32(args->nret);
-#endif
-}
-
 int kvmppc_rtas_hcall(struct kvm_vcpu *vcpu)
 {
 	struct rtas_token_definition *d;
@@ -249,8 +223,6 @@ int kvmppc_rtas_hcall(struct kvm_vcpu *vcpu)
 	if (rc)
 		goto fail;
 
-	kvmppc_rtas_swap_endian_in(&args);
-
 	/*
 	 * args->rets is a pointer into args->args. Now that we've
 	 * copied args we need to fix it up to point into our copy,
@@ -258,13 +230,13 @@ int kvmppc_rtas_hcall(struct kvm_vcpu *vcpu)
 	 * value so we can restore it on the way out.
 	 */
 	orig_rets = args.rets;
-	args.rets = &args.args[args.nargs];
+	args.rets = &args.args[be32_to_cpu(args.nargs)];
 
 	mutex_lock(&vcpu->kvm->lock);
 
 	rc = -ENOENT;
 	list_for_each_entry(d, &vcpu->kvm->arch.rtas_tokens, list) {
-		if (d->token == args.token) {
+		if (d->token == be32_to_cpu(args.token)) {
 			d->handler->handler(vcpu, &args);
 			rc = 0;
 			break;
@@ -275,7 +247,6 @@ int kvmppc_rtas_hcall(struct kvm_vcpu *vcpu)
 
 	if (rc == 0) {
 		args.rets = orig_rets;
-		kvmppc_rtas_swap_endian_out(&args);
 		rc = kvm_write_guest(vcpu->kvm, args_phys, &args, sizeof(args));
 		if (rc)
 			goto fail;
diff --git a/arch/powerpc/kvm/e500_mmu_host.c b/arch/powerpc/kvm/e500_mmu_host.c
index dd2cc03f406f..86903d3f5a03 100644
--- a/arch/powerpc/kvm/e500_mmu_host.c
+++ b/arch/powerpc/kvm/e500_mmu_host.c
@@ -473,7 +473,8 @@ static inline int kvmppc_e500_shadow_map(struct kvmppc_vcpu_e500 *vcpu_e500,
 		if (printk_ratelimit())
 			pr_err("%s: pte not present: gfn %lx, pfn %lx\n",
 				__func__, (long)gfn, pfn);
-		return -EINVAL;
+		ret = -EINVAL;
+		goto out;
 	}
 	kvmppc_e500_ref_setup(ref, gtlbe, pfn, wimg);
 
diff --git a/arch/powerpc/lib/mem_64.S b/arch/powerpc/lib/mem_64.S
index 0738f96befbf..43435c6892fb 100644
--- a/arch/powerpc/lib/mem_64.S
+++ b/arch/powerpc/lib/mem_64.S
@@ -77,7 +77,7 @@ _GLOBAL(memset)
 	stb	r4,0(r6)
 	blr
 
-_GLOBAL(memmove)
+_GLOBAL_TOC(memmove)
 	cmplw	0,r3,r4
 	bgt	backwards_memcpy
 	b	memcpy
diff --git a/arch/powerpc/lib/sstep.c b/arch/powerpc/lib/sstep.c
index 412dd46dd0b7..5c09f365c842 100644
--- a/arch/powerpc/lib/sstep.c
+++ b/arch/powerpc/lib/sstep.c
@@ -1198,7 +1198,7 @@ int __kprobes emulate_step(struct pt_regs *regs, unsigned int instr)
 			sh = regs->gpr[rb] & 0x3f;
 			ival = (signed int) regs->gpr[rd];
 			regs->gpr[ra] = ival >> (sh < 32 ? sh : 31);
-			if (ival < 0 && (sh >= 32 || (ival & ((1 << sh) - 1)) != 0))
+			if (ival < 0 && (sh >= 32 || (ival & ((1ul << sh) - 1)) != 0))
 				regs->xer |= XER_CA;
 			else
 				regs->xer &= ~XER_CA;
@@ -1208,7 +1208,7 @@ int __kprobes emulate_step(struct pt_regs *regs, unsigned int instr)
 			sh = rb;
 			ival = (signed int) regs->gpr[rd];
 			regs->gpr[ra] = ival >> sh;
-			if (ival < 0 && (ival & ((1 << sh) - 1)) != 0)
+			if (ival < 0 && (ival & ((1ul << sh) - 1)) != 0)
 				regs->xer |= XER_CA;
 			else
 				regs->xer &= ~XER_CA;
@@ -1216,7 +1216,7 @@ int __kprobes emulate_step(struct pt_regs *regs, unsigned int instr)
 
 #ifdef __powerpc64__
 		case 27:	/* sld */
-			sh = regs->gpr[rd] & 0x7f;
+			sh = regs->gpr[rb] & 0x7f;
 			if (sh < 64)
 				regs->gpr[ra] = regs->gpr[rd] << sh;
 			else
@@ -1235,7 +1235,7 @@ int __kprobes emulate_step(struct pt_regs *regs, unsigned int instr)
 			sh = regs->gpr[rb] & 0x7f;
 			ival = (signed long int) regs->gpr[rd];
 			regs->gpr[ra] = ival >> (sh < 64 ? sh : 63);
-			if (ival < 0 && (sh >= 64 || (ival & ((1 << sh) - 1)) != 0))
+			if (ival < 0 && (sh >= 64 || (ival & ((1ul << sh) - 1)) != 0))
 				regs->xer |= XER_CA;
 			else
 				regs->xer &= ~XER_CA;
@@ -1246,7 +1246,7 @@ int __kprobes emulate_step(struct pt_regs *regs, unsigned int instr)
 			sh = rb | ((instr & 2) << 4);
 			ival = (signed long int) regs->gpr[rd];
 			regs->gpr[ra] = ival >> sh;
-			if (ival < 0 && (ival & ((1 << sh) - 1)) != 0)
+			if (ival < 0 && (ival & ((1ul << sh) - 1)) != 0)
 				regs->xer |= XER_CA;
 			else
 				regs->xer &= ~XER_CA;
diff --git a/arch/powerpc/mm/mmu_context_nohash.c b/arch/powerpc/mm/mmu_context_nohash.c
index af3d78e19302..928ebe79668b 100644
--- a/arch/powerpc/mm/mmu_context_nohash.c
+++ b/arch/powerpc/mm/mmu_context_nohash.c
@@ -410,17 +410,7 @@ void __init mmu_context_init(void)
 	} else if (mmu_has_feature(MMU_FTR_TYPE_47x)) {
 		first_context = 1;
 		last_context = 65535;
-	} else
-#ifdef CONFIG_PPC_BOOK3E_MMU
-	if (mmu_has_feature(MMU_FTR_TYPE_3E)) {
-		u32 mmucfg = mfspr(SPRN_MMUCFG);
-		u32 pid_bits = (mmucfg & MMUCFG_PIDSIZE_MASK)
-				>> MMUCFG_PIDSIZE_SHIFT;
-		first_context = 1;
-		last_context = (1UL << (pid_bits + 1)) - 1;
-	} else
-#endif
-	{
+	} else {
 		first_context = 1;
 		last_context = 255;
 	}
diff --git a/arch/powerpc/net/bpf_jit_comp.c b/arch/powerpc/net/bpf_jit_comp.c
index 6dcdadefd8d0..82e82cadcde5 100644
--- a/arch/powerpc/net/bpf_jit_comp.c
+++ b/arch/powerpc/net/bpf_jit_comp.c
@@ -390,12 +390,16 @@ static int bpf_jit_build_body(struct sk_filter *fp, u32 *image,
 		case BPF_ANC | SKF_AD_VLAN_TAG:
 		case BPF_ANC | SKF_AD_VLAN_TAG_PRESENT:
 			BUILD_BUG_ON(FIELD_SIZEOF(struct sk_buff, vlan_tci) != 2);
+			BUILD_BUG_ON(VLAN_TAG_PRESENT != 0x1000);
+
 			PPC_LHZ_OFFS(r_A, r_skb, offsetof(struct sk_buff,
 							  vlan_tci));
-			if (code == (BPF_ANC | SKF_AD_VLAN_TAG))
-				PPC_ANDI(r_A, r_A, VLAN_VID_MASK);
-			else
+			if (code == (BPF_ANC | SKF_AD_VLAN_TAG)) {
+				PPC_ANDI(r_A, r_A, ~VLAN_TAG_PRESENT);
+			} else {
 				PPC_ANDI(r_A, r_A, VLAN_TAG_PRESENT);
+				PPC_SRWI(r_A, r_A, 12);
+			}
 			break;
 		case BPF_ANC | SKF_AD_QUEUE:
 			BUILD_BUG_ON(FIELD_SIZEOF(struct sk_buff,
diff --git a/arch/powerpc/perf/core-book3s.c b/arch/powerpc/perf/core-book3s.c
index 4520c9356b54..6b0641c3f03f 100644
--- a/arch/powerpc/perf/core-book3s.c
+++ b/arch/powerpc/perf/core-book3s.c
@@ -485,7 +485,7 @@ static bool is_ebb_event(struct perf_event *event)
 	 * check that the PMU supports EBB, meaning those that don't can still
 	 * use bit 63 of the event code for something else if they wish.
 	 */
-	return (ppmu->flags & PPMU_EBB) &&
+	return (ppmu->flags & PPMU_ARCH_207S) &&
 	       ((event->attr.config >> PERF_EVENT_CONFIG_EBB_SHIFT) & 1);
 }
 
@@ -777,7 +777,7 @@ void perf_event_print_debug(void)
 	if (ppmu->flags & PPMU_HAS_SIER)
 		sier = mfspr(SPRN_SIER);
 
-	if (ppmu->flags & PPMU_EBB) {
+	if (ppmu->flags & PPMU_ARCH_207S) {
 		pr_info("MMCR2: %016lx EBBHR: %016lx\n",
 			mfspr(SPRN_MMCR2), mfspr(SPRN_EBBHR));
 		pr_info("EBBRR: %016lx BESCR: %016lx\n",
@@ -996,7 +996,22 @@ static void power_pmu_read(struct perf_event *event)
 	} while (local64_cmpxchg(&event->hw.prev_count, prev, val) != prev);
 
 	local64_add(delta, &event->count);
-	local64_sub(delta, &event->hw.period_left);
+
+	/*
+	 * A number of places program the PMC with (0x80000000 - period_left).
+	 * We never want period_left to be less than 1 because we will program
+	 * the PMC with a value >= 0x800000000 and an edge detected PMC will
+	 * roll around to 0 before taking an exception. We have seen this
+	 * on POWER8.
+	 *
+	 * To fix this, clamp the minimum value of period_left to 1.
+	 */
+	do {
+		prev = local64_read(&event->hw.period_left);
+		val = prev - delta;
+		if (val < 1)
+			val = 1;
+	} while (local64_cmpxchg(&event->hw.period_left, prev, val) != prev);
 }
 
 /*
@@ -1300,6 +1315,9 @@ static void power_pmu_enable(struct pmu *pmu)
 
 	write_mmcr0(cpuhw, mmcr0);
 
+	if (ppmu->flags & PPMU_ARCH_207S)
+		mtspr(SPRN_MMCR2, 0);
+
 	/*
 	 * Enable instruction sampling if necessary
 	 */
@@ -1696,7 +1714,7 @@ static int power_pmu_event_init(struct perf_event *event)
 
 	if (has_branch_stack(event)) {
 	        /* PMU has BHRB enabled */
-		if (!(ppmu->flags & PPMU_BHRB))
+		if (!(ppmu->flags & PPMU_ARCH_207S))
 			return -EOPNOTSUPP;
 	}
 
diff --git a/arch/powerpc/perf/power8-pmu.c b/arch/powerpc/perf/power8-pmu.c
index fe2763b6e039..639cd9156585 100644
--- a/arch/powerpc/perf/power8-pmu.c
+++ b/arch/powerpc/perf/power8-pmu.c
@@ -792,7 +792,7 @@ static struct power_pmu power8_pmu = {
 	.get_constraint		= power8_get_constraint,
 	.get_alternatives	= power8_get_alternatives,
 	.disable_pmc		= power8_disable_pmc,
-	.flags			= PPMU_HAS_SSLOT | PPMU_HAS_SIER | PPMU_BHRB | PPMU_EBB,
+	.flags			= PPMU_HAS_SSLOT | PPMU_HAS_SIER | PPMU_ARCH_207S,
 	.n_generic		= ARRAY_SIZE(power8_generic_events),
 	.generic_events		= power8_generic_events,
 	.cache_events		= &power8_cache_events,
diff --git a/arch/powerpc/platforms/cell/cbe_thermal.c b/arch/powerpc/platforms/cell/cbe_thermal.c
index 94560db788bf..2c15ff094483 100644
--- a/arch/powerpc/platforms/cell/cbe_thermal.c
+++ b/arch/powerpc/platforms/cell/cbe_thermal.c
@@ -125,7 +125,7 @@ static ssize_t show_throttle(struct cbe_pmd_regs __iomem *pmd_regs, char *buf, i
 static ssize_t store_throttle(struct cbe_pmd_regs __iomem *pmd_regs, const char *buf, size_t size, int pos)
 {
 	u64 reg_value;
-	int temp;
+	unsigned int temp;
 	u64 new_value;
 	int ret;
 
diff --git a/arch/powerpc/platforms/cell/spu_syscalls.c b/arch/powerpc/platforms/cell/spu_syscalls.c
index 38e0a1a5cec3..5e6e0bad6db6 100644
--- a/arch/powerpc/platforms/cell/spu_syscalls.c
+++ b/arch/powerpc/platforms/cell/spu_syscalls.c
@@ -111,6 +111,7 @@ asmlinkage long sys_spu_run(int fd, __u32 __user *unpc, __u32 __user *ustatus)
 	return ret;
 }
 
+#ifdef CONFIG_COREDUMP
 int elf_coredump_extra_notes_size(void)
 {
 	struct spufs_calls *calls;
@@ -142,6 +143,7 @@ int elf_coredump_extra_notes_write(struct coredump_params *cprm)
 
 	return ret;
 }
+#endif
 
 void notify_spus_active(void)
 {
diff --git a/arch/powerpc/platforms/cell/spufs/Makefile b/arch/powerpc/platforms/cell/spufs/Makefile
index b9d5d678aa44..52a7d2596d30 100644
--- a/arch/powerpc/platforms/cell/spufs/Makefile
+++ b/arch/powerpc/platforms/cell/spufs/Makefile
@@ -1,8 +1,9 @@
 
 obj-$(CONFIG_SPU_FS) += spufs.o
-spufs-y += inode.o file.o context.o syscalls.o coredump.o
+spufs-y += inode.o file.o context.o syscalls.o
 spufs-y += sched.o backing_ops.o hw_ops.o run.o gang.o
 spufs-y += switch.o fault.o lscsa_alloc.o
+spufs-$(CONFIG_COREDUMP) += coredump.o
 
 # magic for the trace events
 CFLAGS_sched.o := -I$(src)
diff --git a/arch/powerpc/platforms/cell/spufs/syscalls.c b/arch/powerpc/platforms/cell/spufs/syscalls.c
index b045fdda4845..a87200a535fa 100644
--- a/arch/powerpc/platforms/cell/spufs/syscalls.c
+++ b/arch/powerpc/platforms/cell/spufs/syscalls.c
@@ -79,8 +79,10 @@ static long do_spu_create(const char __user *pathname, unsigned int flags,
 struct spufs_calls spufs_calls = {
 	.create_thread = do_spu_create,
 	.spu_run = do_spu_run,
-	.coredump_extra_notes_size = spufs_coredump_extra_notes_size,
-	.coredump_extra_notes_write = spufs_coredump_extra_notes_write,
 	.notify_spus_active = do_notify_spus_active,
 	.owner = THIS_MODULE,
+#ifdef CONFIG_COREDUMP
+	.coredump_extra_notes_size = spufs_coredump_extra_notes_size,
+	.coredump_extra_notes_write = spufs_coredump_extra_notes_write,
+#endif
 };
diff --git a/arch/powerpc/platforms/powernv/Makefile b/arch/powerpc/platforms/powernv/Makefile
index d55891f89a2c..4ad227d04c1a 100644
--- a/arch/powerpc/platforms/powernv/Makefile
+++ b/arch/powerpc/platforms/powernv/Makefile
@@ -1,4 +1,4 @@
-obj-y			+= setup.o opal-takeover.o opal-wrappers.o opal.o opal-async.o
+obj-y			+= setup.o opal-wrappers.o opal.o opal-async.o
 obj-y			+= opal-rtc.o opal-nvram.o opal-lpc.o opal-flash.o
 obj-y			+= rng.o opal-elog.o opal-dump.o opal-sysparam.o opal-sensor.o
 obj-y			+= opal-msglog.o
diff --git a/arch/powerpc/platforms/powernv/opal-takeover.S b/arch/powerpc/platforms/powernv/opal-takeover.S
deleted file mode 100644
index 11a3169ee583..000000000000
--- a/arch/powerpc/platforms/powernv/opal-takeover.S
+++ /dev/null
@@ -1,140 +0,0 @@
-/*
- * PowerNV OPAL takeover assembly code, for use by prom_init.c
- *
- * Copyright 2011 IBM Corp.
- *
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU General Public License
- * as published by the Free Software Foundation; either version
- * 2 of the License, or (at your option) any later version.
- */
-
-#include <asm/ppc_asm.h>
-#include <asm/hvcall.h>
-#include <asm/asm-offsets.h>
-#include <asm/opal.h>
-
-#define H_HAL_TAKEOVER			0x5124
-#define H_HAL_TAKEOVER_QUERY_MAGIC	-1
-
-	.text
-_GLOBAL(opal_query_takeover)
-	mfcr	r0
-	stw	r0,8(r1)
-	stdu	r1,-STACKFRAMESIZE(r1)
-	std	r3,STK_PARAM(R3)(r1)
-	std	r4,STK_PARAM(R4)(r1)
-	li	r3,H_HAL_TAKEOVER
-	li	r4,H_HAL_TAKEOVER_QUERY_MAGIC
-	HVSC
-	addi	r1,r1,STACKFRAMESIZE
-	ld	r10,STK_PARAM(R3)(r1)
-	std	r4,0(r10)
-	ld	r10,STK_PARAM(R4)(r1)
-	std	r5,0(r10)
-	lwz	r0,8(r1)
-	mtcrf	0xff,r0
-	blr
-
-_GLOBAL(opal_do_takeover)
-	mfcr	r0
-	stw	r0,8(r1)
-	mflr	r0
-	std	r0,16(r1)
-	bl	__opal_do_takeover
-	ld	r0,16(r1)
-	mtlr	r0
-	lwz	r0,8(r1)
-	mtcrf	0xff,r0
-	blr
-
-__opal_do_takeover:
-	ld	r4,0(r3)
-	ld	r5,0x8(r3)
-	ld	r6,0x10(r3)
-	ld	r7,0x18(r3)
-	ld	r8,0x20(r3)
-	ld	r9,0x28(r3)
-	ld	r10,0x30(r3)
-	ld	r11,0x38(r3)
-	li	r3,H_HAL_TAKEOVER
-	HVSC
-	blr
-
-	.globl opal_secondary_entry
-opal_secondary_entry:
-	mr	r31,r3
-	mfmsr	r11
-	li	r12,(MSR_SF | MSR_ISF)@highest
-	sldi	r12,r12,48
-	or	r11,r11,r12
-	mtmsrd	r11
-	isync
-	mfspr	r4,SPRN_PIR
-	std	r4,0(r3)
-1:	HMT_LOW
-	ld	r4,8(r3)
-	cmpli	cr0,r4,0
-	beq	1b
-	HMT_MEDIUM
-1:	addi	r3,r31,16
-	bl	__opal_do_takeover
-	b	1b
-
-_GLOBAL(opal_enter_rtas)
-	mflr	r0
-	std	r0,16(r1)
-        stdu	r1,-PROM_FRAME_SIZE(r1)	/* Save SP and create stack space */
-
-	/* Because PROM is running in 32b mode, it clobbers the high order half
-	 * of all registers that it saves.  We therefore save those registers
-	 * PROM might touch to the stack.  (r0, r3-r13 are caller saved)
-	*/
-	SAVE_GPR(2, r1)
-	SAVE_GPR(13, r1)
-	SAVE_8GPRS(14, r1)
-	SAVE_10GPRS(22, r1)
-	mfcr	r10
-	mfmsr	r11
-	std	r10,_CCR(r1)
-	std	r11,_MSR(r1)
-
-	/* Get the PROM entrypoint */
-	mtlr	r5
-
-	/* Switch MSR to 32 bits mode
-	 */
-        li      r12,1
-        rldicr  r12,r12,MSR_SF_LG,(63-MSR_SF_LG)
-        andc    r11,r11,r12
-        li      r12,1
-        rldicr  r12,r12,MSR_ISF_LG,(63-MSR_ISF_LG)
-        andc    r11,r11,r12
-        mtmsrd  r11
-        isync
-
-	/* Enter RTAS here... */
-	blrl
-
-	/* Just make sure that r1 top 32 bits didn't get
-	 * corrupt by OF
-	 */
-	rldicl	r1,r1,0,32
-
-	/* Restore the MSR (back to 64 bits) */
-	ld	r0,_MSR(r1)
-	MTMSRD(r0)
-        isync
-
-	/* Restore other registers */
-	REST_GPR(2, r1)
-	REST_GPR(13, r1)
-	REST_8GPRS(14, r1)
-	REST_10GPRS(22, r1)
-	ld	r4,_CCR(r1)
-	mtcr	r4
-
-        addi	r1,r1,PROM_FRAME_SIZE
-	ld	r0,16(r1)
-	mtlr    r0
-	blr
diff --git a/arch/powerpc/platforms/pseries/dlpar.c b/arch/powerpc/platforms/pseries/dlpar.c
index 022b38e6a80b..2d0b4d68a40a 100644
--- a/arch/powerpc/platforms/pseries/dlpar.c
+++ b/arch/powerpc/platforms/pseries/dlpar.c
@@ -86,6 +86,7 @@ static struct device_node *dlpar_parse_cc_node(struct cc_workarea *ccwa,
 	}
 
 	of_node_set_flag(dn, OF_DYNAMIC);
+	of_node_init(dn);
 
 	return dn;
 }
diff --git a/arch/powerpc/platforms/pseries/reconfig.c b/arch/powerpc/platforms/pseries/reconfig.c
index 0435bb65d0aa..1c0a60d98867 100644
--- a/arch/powerpc/platforms/pseries/reconfig.c
+++ b/arch/powerpc/platforms/pseries/reconfig.c
@@ -69,6 +69,7 @@ static int pSeries_reconfig_add_node(const char *path, struct property *proplist
 
 	np->properties = proplist;
 	of_node_set_flag(np, OF_DYNAMIC);
+	of_node_init(np);
 
 	np->parent = derive_parent(path);
 	if (IS_ERR(np->parent)) {
diff --git a/arch/powerpc/sysdev/dart_iommu.c b/arch/powerpc/sysdev/dart_iommu.c
index 62c47bb76517..9e5353ff6d1b 100644
--- a/arch/powerpc/sysdev/dart_iommu.c
+++ b/arch/powerpc/sysdev/dart_iommu.c
@@ -476,6 +476,11 @@ void __init alloc_dart_table(void)
 	 */
 	dart_tablebase = (unsigned long)
 		__va(memblock_alloc_base(1UL<<24, 1UL<<24, 0x80000000L));
+	/*
+	 * The DART space is later unmapped from the kernel linear mapping and
+	 * accessing dart_tablebase during kmemleak scanning will fault.
+	 */
+	kmemleak_no_scan((void *)dart_tablebase);
 
 	printk(KERN_INFO "DART table allocated at: %lx\n", dart_tablebase);
 }