53 files changed, 671 insertions, 154 deletions

diff --git a/Documentation/kernel-parameters.txt b/Documentation/kernel-parameters.txt
index cdd2a6e8a3b7..69bb6a9c871a 100644
--- a/Documentation/kernel-parameters.txt
+++ b/Documentation/kernel-parameters.txt
@@ -403,6 +403,10 @@ and is between 256 and 4096 characters. It is defined in the file
         bttv.pll=       See Documentation/video4linux/bttv/Insmod-options
         bttv.tuner=     and Documentation/video4linux/bttv/CARDLIST
 
+        bulk_remove=off [PPC]  This parameter disables the use of the pSeries
+                        firmware feature for flushing multiple hpte entries
+                        at a time.
+
         c101=           [NET] Moxa C101 synchronous serial card
 
         cachesize=      [BUGS=X86-32] Override level 2 CPU cache size detection.
@@ -1490,6 +1494,10 @@ and is between 256 and 4096 characters. It is defined in the file
         mtdparts=       [MTD]
                         See drivers/mtd/cmdlinepart.c.
 
+        multitce=off    [PPC]  This parameter disables the use of the pSeries
+                        firmware feature for updating multiple TCE entries
+                        at a time.
+
         onenand.bdry=   [HW,MTD] Flex-OneNAND Boundary Configuration
 
                         Format: [die0_boundary][,die0_lock][,die1_boundary][,die1_lock]
diff --git a/Documentation/powerpc/booting-without-of.txt b/Documentation/powerpc/booting-without-of.txt
index 302db5da49b3..3272ed59dec7 100644
--- a/Documentation/powerpc/booting-without-of.txt
+++ b/Documentation/powerpc/booting-without-of.txt
@@ -131,7 +131,7 @@ order to avoid the degeneration that had become the ppc32 kernel entry
 point and the way a new platform should be added to the kernel. The
 legacy iSeries platform breaks those rules as it predates this scheme,
 but no new board support will be accepted in the main tree that
-doesn't follows them properly.  In addition, since the advent of the
+doesn't follow them properly.  In addition, since the advent of the
 arch/powerpc merged architecture for ppc32 and ppc64, new 32-bit
 platforms and 32-bit platforms which move into arch/powerpc will be
 required to use these rules as well.
@@ -1025,7 +1025,7 @@ dtc source code can be found at
 
 WARNING: This version is still in early development stage; the
 resulting device-tree "blobs" have not yet been validated with the
-kernel. The current generated bloc lacks a useful reserve map (it will
+kernel. The current generated block lacks a useful reserve map (it will
 be fixed to generate an empty one, it's up to the bootloader to fill
 it up) among others. The error handling needs work, bugs are lurking,
 etc...
diff --git a/arch/powerpc/Kconfig b/arch/powerpc/Kconfig
index e625e9e034ae..06d742c3fbcf 100644
--- a/arch/powerpc/Kconfig
+++ b/arch/powerpc/Kconfig
@@ -20,6 +20,9 @@ config WORD_SIZE
 config ARCH_PHYS_ADDR_T_64BIT
        def_bool PPC64 || PHYS_64BIT
 
+config ARCH_DMA_ADDR_T_64BIT
+        def_bool ARCH_PHYS_ADDR_T_64BIT
+
 config MMU
         bool
         default y
diff --git a/arch/powerpc/include/asm/bitops.h b/arch/powerpc/include/asm/bitops.h
index 30964ae2d096..8a7e9314c68a 100644
--- a/arch/powerpc/include/asm/bitops.h
+++ b/arch/powerpc/include/asm/bitops.h
@@ -267,7 +267,16 @@ static __inline__ int fls64(__u64 x)
 #include <asm-generic/bitops/fls64.h>
 #endif /* __powerpc64__ */
 
+#ifdef CONFIG_PPC64
+unsigned int __arch_hweight8(unsigned int w);
+unsigned int __arch_hweight16(unsigned int w);
+unsigned int __arch_hweight32(unsigned int w);
+unsigned long __arch_hweight64(__u64 w);
+#include <asm-generic/bitops/const_hweight.h>
+#else
 #include <asm-generic/bitops/hweight.h>
+#endif
+
 #include <asm-generic/bitops/find.h>
 
 /* Little-endian versions */
diff --git a/arch/powerpc/include/asm/cputable.h b/arch/powerpc/include/asm/cputable.h
index f3a1fdd9cf08..f0a211d96923 100644
--- a/arch/powerpc/include/asm/cputable.h
+++ b/arch/powerpc/include/asm/cputable.h
@@ -199,6 +199,8 @@ extern const char *powerpc_base_platform;
 #define CPU_FTR_UNALIGNED_LD_STD        LONG_ASM_CONST(0x0080000000000000)
 #define CPU_FTR_ASYM_SMT                LONG_ASM_CONST(0x0100000000000000)
 #define CPU_FTR_STCX_CHECKS_ADDRESS     LONG_ASM_CONST(0x0200000000000000)
+#define CPU_FTR_POPCNTB                 LONG_ASM_CONST(0x0400000000000000)
+#define CPU_FTR_POPCNTD                 LONG_ASM_CONST(0x0800000000000000)
 
 #ifndef __ASSEMBLY__
 
@@ -403,21 +405,22 @@ extern const char *powerpc_base_platform;
             CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_CTRL | \
             CPU_FTR_MMCRA | CPU_FTR_SMT | \
             CPU_FTR_COHERENT_ICACHE | CPU_FTR_LOCKLESS_TLBIE | \
-            CPU_FTR_PURR | CPU_FTR_STCX_CHECKS_ADDRESS)
+            CPU_FTR_PURR | CPU_FTR_STCX_CHECKS_ADDRESS | \
+            CPU_FTR_POPCNTB)
 #define CPU_FTRS_POWER6 (CPU_FTR_USE_TB | CPU_FTR_LWSYNC | \
             CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_CTRL | \
             CPU_FTR_MMCRA | CPU_FTR_SMT | \
             CPU_FTR_COHERENT_ICACHE | CPU_FTR_LOCKLESS_TLBIE | \
             CPU_FTR_PURR | CPU_FTR_SPURR | CPU_FTR_REAL_LE | \
             CPU_FTR_DSCR | CPU_FTR_UNALIGNED_LD_STD | \
-            CPU_FTR_STCX_CHECKS_ADDRESS)
+            CPU_FTR_STCX_CHECKS_ADDRESS | CPU_FTR_POPCNTB)
 #define CPU_FTRS_POWER7 (CPU_FTR_USE_TB | CPU_FTR_LWSYNC | \
             CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_CTRL | \
             CPU_FTR_MMCRA | CPU_FTR_SMT | \
             CPU_FTR_COHERENT_ICACHE | CPU_FTR_LOCKLESS_TLBIE | \
             CPU_FTR_PURR | CPU_FTR_SPURR | CPU_FTR_REAL_LE | \
             CPU_FTR_DSCR | CPU_FTR_SAO  | CPU_FTR_ASYM_SMT | \
-            CPU_FTR_STCX_CHECKS_ADDRESS)
+            CPU_FTR_STCX_CHECKS_ADDRESS | CPU_FTR_POPCNTB | CPU_FTR_POPCNTD)
 #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/cputhreads.h b/arch/powerpc/include/asm/cputhreads.h
index a8e18447c62b..f71bb4c118b4 100644
--- a/arch/powerpc/include/asm/cputhreads.h
+++ b/arch/powerpc/include/asm/cputhreads.h
@@ -61,22 +61,25 @@ static inline cpumask_t cpu_online_cores_map(void)
         return cpu_thread_mask_to_cores(cpu_online_map);
 }
 
-static inline int cpu_thread_to_core(int cpu)
-{
-        return cpu >> threads_shift;
-}
+#ifdef CONFIG_SMP
+int cpu_core_index_of_thread(int cpu);
+int cpu_first_thread_of_core(int core);
+#else
+static inline int cpu_core_index_of_thread(int cpu) { return cpu; }
+static inline int cpu_first_thread_of_core(int core) { return core; }
+#endif
 
 static inline int cpu_thread_in_core(int cpu)
 {
         return cpu & (threads_per_core - 1);
 }
 
-static inline int cpu_first_thread_in_core(int cpu)
+static inline int cpu_first_thread_sibling(int cpu)
 {
         return cpu & ~(threads_per_core - 1);
 }
 
-static inline int cpu_last_thread_in_core(int cpu)
+static inline int cpu_last_thread_sibling(int cpu)
 {
         return cpu | (threads_per_core - 1);
 }
diff --git a/arch/powerpc/include/asm/device.h b/arch/powerpc/include/asm/device.h
index a3954e4fcbe2..16d25c0974be 100644
--- a/arch/powerpc/include/asm/device.h
+++ b/arch/powerpc/include/asm/device.h
@@ -9,6 +9,12 @@
 struct dma_map_ops;
 struct device_node;
 
+/*
+ * Arch extensions to struct device.
+ *
+ * When adding fields, consider macio_add_one_device in
+ * drivers/macintosh/macio_asic.c
+ */
 struct dev_archdata {
         /* DMA operations on that device */
         struct dma_map_ops      *dma_ops;
diff --git a/arch/powerpc/include/asm/firmware.h b/arch/powerpc/include/asm/firmware.h
index 20778a405d7a..4ef662e4a31d 100644
--- a/arch/powerpc/include/asm/firmware.h
+++ b/arch/powerpc/include/asm/firmware.h
@@ -46,6 +46,7 @@
 #define FW_FEATURE_PS3_LV1      ASM_CONST(0x0000000000800000)
 #define FW_FEATURE_BEAT         ASM_CONST(0x0000000001000000)
 #define FW_FEATURE_CMO          ASM_CONST(0x0000000002000000)
+#define FW_FEATURE_VPHN         ASM_CONST(0x0000000004000000)
 
 #ifndef __ASSEMBLY__
 
@@ -59,7 +60,7 @@ enum {
                 FW_FEATURE_VIO | FW_FEATURE_RDMA | FW_FEATURE_LLAN |
                 FW_FEATURE_BULK_REMOVE | FW_FEATURE_XDABR |
                 FW_FEATURE_MULTITCE | FW_FEATURE_SPLPAR | FW_FEATURE_LPAR |
-                FW_FEATURE_CMO,
+                FW_FEATURE_CMO | FW_FEATURE_VPHN,
         FW_FEATURE_PSERIES_ALWAYS = 0,
         FW_FEATURE_ISERIES_POSSIBLE = FW_FEATURE_ISERIES | FW_FEATURE_LPAR,
         FW_FEATURE_ISERIES_ALWAYS = FW_FEATURE_ISERIES | FW_FEATURE_LPAR,
diff --git a/arch/powerpc/include/asm/hvcall.h b/arch/powerpc/include/asm/hvcall.h
index de03ca58db5d..ec089acfa56b 100644
--- a/arch/powerpc/include/asm/hvcall.h
+++ b/arch/powerpc/include/asm/hvcall.h
@@ -232,7 +232,9 @@
 #define H_GET_EM_PARMS          0x2B8
 #define H_SET_MPP               0x2D0
 #define H_GET_MPP               0x2D4
-#define MAX_HCALL_OPCODE        H_GET_MPP
+#define H_HOME_NODE_ASSOCIATIVITY 0x2EC
+#define H_BEST_ENERGY           0x2F4
+#define MAX_HCALL_OPCODE        H_BEST_ENERGY
 
 #ifndef __ASSEMBLY__
 
diff --git a/arch/powerpc/include/asm/mmzone.h b/arch/powerpc/include/asm/mmzone.h
index aac87cbceb57..fd3fd58bad84 100644
--- a/arch/powerpc/include/asm/mmzone.h
+++ b/arch/powerpc/include/asm/mmzone.h
@@ -33,6 +33,9 @@ extern int numa_cpu_lookup_table[];
 extern cpumask_var_t node_to_cpumask_map[];
 #ifdef CONFIG_MEMORY_HOTPLUG
 extern unsigned long max_pfn;
+u64 memory_hotplug_max(void);
+#else
+#define memory_hotplug_max() memblock_end_of_DRAM()
 #endif
 
 /*
@@ -42,6 +45,8 @@ extern unsigned long max_pfn;
 #define node_start_pfn(nid)     (NODE_DATA(nid)->node_start_pfn)
 #define node_end_pfn(nid)       (NODE_DATA(nid)->node_end_pfn)
 
+#else
+#define memory_hotplug_max() memblock_end_of_DRAM()
 #endif /* CONFIG_NEED_MULTIPLE_NODES */
 
 #endif /* __KERNEL__ */
diff --git a/arch/powerpc/include/asm/processor.h b/arch/powerpc/include/asm/processor.h
index 4c14187ba02d..de1967a1ff57 100644
--- a/arch/powerpc/include/asm/processor.h
+++ b/arch/powerpc/include/asm/processor.h
@@ -122,7 +122,6 @@ extern struct task_struct *last_task_used_spe;
                 TASK_UNMAPPED_BASE_USER32 : TASK_UNMAPPED_BASE_USER64 )
 #endif
 
-#ifdef __KERNEL__
 #ifdef __powerpc64__
 
 #define STACK_TOP_USER64 TASK_SIZE_USER64
@@ -139,7 +138,6 @@ extern struct task_struct *last_task_used_spe;
 #define STACK_TOP_MAX   STACK_TOP
 
 #endif /* __powerpc64__ */
-#endif /* __KERNEL__ */
 
 typedef struct {
         unsigned long seg;
diff --git a/arch/powerpc/include/asm/vdso_datapage.h b/arch/powerpc/include/asm/vdso_datapage.h
index 08679c5319b8..25e39220e89c 100644
--- a/arch/powerpc/include/asm/vdso_datapage.h
+++ b/arch/powerpc/include/asm/vdso_datapage.h
@@ -116,9 +116,7 @@ struct vdso_data {
 
 #endif /* CONFIG_PPC64 */
 
-#ifdef __KERNEL__
 extern struct vdso_data *vdso_data;
-#endif
 
 #endif /* __ASSEMBLY__ */
 
diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
index 36c30f31ec93..3bb2a3e6a337 100644
--- a/arch/powerpc/kernel/Makefile
+++ b/arch/powerpc/kernel/Makefile
@@ -29,8 +29,10 @@ endif
 obj-y                           := cputable.o ptrace.o syscalls.o \
                                    irq.o align.o signal_32.o pmc.o vdso.o \
                                    init_task.o process.o systbl.o idle.o \
-                                   signal.o sysfs.o cacheinfo.o
-obj-y                           += vdso32/
+                                   signal.o sysfs.o cacheinfo.o time.o \
+                                   prom.o traps.o setup-common.o \
+                                   udbg.o misc.o io.o dma.o \
+                                   misc_$(CONFIG_WORD_SIZE).o vdso32/
 obj-$(CONFIG_PPC64)             += setup_64.o sys_ppc32.o \
                                    signal_64.o ptrace32.o \
                                    paca.o nvram_64.o firmware.o
@@ -80,9 +82,6 @@ extra-$(CONFIG_FSL_BOOKE)	:= head_fsl_booke.o
 extra-$(CONFIG_8xx)             := head_8xx.o
 extra-y                         += vmlinux.lds
 
-obj-y                           += time.o prom.o traps.o setup-common.o \
-                                   udbg.o misc.o io.o dma.o \
-                                   misc_$(CONFIG_WORD_SIZE).o
 obj-$(CONFIG_PPC32)             += entry_32.o setup_32.o
 obj-$(CONFIG_PPC64)             += dma-iommu.o iommu.o
 obj-$(CONFIG_KGDB)              += kgdb.o
diff --git a/arch/powerpc/kernel/asm-offsets.c b/arch/powerpc/kernel/asm-offsets.c
index bd0df2e6aa8f..23e6a93145ab 100644
--- a/arch/powerpc/kernel/asm-offsets.c
+++ b/arch/powerpc/kernel/asm-offsets.c
@@ -209,7 +209,6 @@ int main(void)
         DEFINE(RTASENTRY, offsetof(struct rtas_t, entry));
 
         /* Interrupt register frame */
-        DEFINE(STACK_FRAME_OVERHEAD, STACK_FRAME_OVERHEAD);
         DEFINE(INT_FRAME_SIZE, STACK_INT_FRAME_SIZE);
         DEFINE(SWITCH_FRAME_SIZE, STACK_FRAME_OVERHEAD + sizeof(struct pt_regs));
 #ifdef CONFIG_PPC64
diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c
index 96a908f1cd87..be5ab18b03b5 100644
--- a/arch/powerpc/kernel/cputable.c
+++ b/arch/powerpc/kernel/cputable.c
@@ -457,16 +457,26 @@ static struct cpu_spec __initdata cpu_specs[] = {
                 .dcache_bsize           = 128,
                 .num_pmcs               = 6,
                 .pmc_type               = PPC_PMC_IBM,
-                .cpu_setup              = __setup_cpu_power7,
-                .cpu_restore            = __restore_cpu_power7,
                 .oprofile_cpu_type      = "ppc64/power7",
                 .oprofile_type          = PPC_OPROFILE_POWER4,
-                .oprofile_mmcra_sihv    = POWER6_MMCRA_SIHV,
-                .oprofile_mmcra_sipr    = POWER6_MMCRA_SIPR,
-                .oprofile_mmcra_clear   = POWER6_MMCRA_THRM |
-                        POWER6_MMCRA_OTHER,
                 .platform               = "power7",
         },
+        {       /* Power7+ */
+                .pvr_mask               = 0xffff0000,
+                .pvr_value              = 0x004A0000,
+                .cpu_name               = "POWER7+ (raw)",
+                .cpu_features           = CPU_FTRS_POWER7,
+                .cpu_user_features      = COMMON_USER_POWER7,
+                .mmu_features           = MMU_FTR_HPTE_TABLE |
+                        MMU_FTR_TLBIE_206,
+                .icache_bsize           = 128,
+                .dcache_bsize           = 128,
+                .num_pmcs               = 6,
+                .pmc_type               = PPC_PMC_IBM,
+                .oprofile_cpu_type      = "ppc64/power7",
+                .oprofile_type          = PPC_OPROFILE_POWER4,
+                .platform               = "power7+",
+        },
         {       /* Cell Broadband Engine */
                 .pvr_mask               = 0xffff0000,
                 .pvr_value              = 0x00700000,
diff --git a/arch/powerpc/kernel/crash_dump.c b/arch/powerpc/kernel/crash_dump.c
index 8e05c16344e4..0a2af50243cb 100644
--- a/arch/powerpc/kernel/crash_dump.c
+++ b/arch/powerpc/kernel/crash_dump.c
@@ -19,6 +19,7 @@
 #include <asm/prom.h>
 #include <asm/firmware.h>
 #include <asm/uaccess.h>
+#include <asm/rtas.h>
 
 #ifdef DEBUG
 #include <asm/udbg.h>
@@ -141,3 +142,35 @@ ssize_t copy_oldmem_page(unsigned long pfn, char *buf,
 
         return csize;
 }
+
+#ifdef CONFIG_PPC_RTAS
+/*
+ * The crashkernel region will almost always overlap the RTAS region, so
+ * we have to be careful when shrinking the crashkernel region.
+ */
+void crash_free_reserved_phys_range(unsigned long begin, unsigned long end)
+{
+        unsigned long addr;
+        const u32 *basep, *sizep;
+        unsigned int rtas_start = 0, rtas_end = 0;
+
+        basep = of_get_property(rtas.dev, "linux,rtas-base", NULL);
+        sizep = of_get_property(rtas.dev, "rtas-size", NULL);
+
+        if (basep && sizep) {
+                rtas_start = *basep;
+                rtas_end = *basep + *sizep;
+        }
+
+        for (addr = begin; addr < end; addr += PAGE_SIZE) {
+                /* Does this page overlap with the RTAS region? */
+                if (addr <= rtas_end && ((addr + PAGE_SIZE) > rtas_start))
+                        continue;
+
+                ClearPageReserved(pfn_to_page(addr >> PAGE_SHIFT));
+                init_page_count(pfn_to_page(addr >> PAGE_SHIFT));
+                free_page((unsigned long)__va(addr));
+                totalram_pages++;
+        }
+}
+#endif
diff --git a/arch/powerpc/kernel/entry_32.S b/arch/powerpc/kernel/entry_32.S
index ed4aeb96398b..c22dc1ec1c94 100644
--- a/arch/powerpc/kernel/entry_32.S
+++ b/arch/powerpc/kernel/entry_32.S
@@ -31,6 +31,7 @@
 #include <asm/asm-offsets.h>
 #include <asm/unistd.h>
 #include <asm/ftrace.h>
+#include <asm/ptrace.h>
 
 #undef SHOW_SYSCALLS
 #undef SHOW_SYSCALLS_TASK
diff --git a/arch/powerpc/kernel/exceptions-64s.S b/arch/powerpc/kernel/exceptions-64s.S
index 9f8b01d6466f..8a817995b4cd 100644
--- a/arch/powerpc/kernel/exceptions-64s.S
+++ b/arch/powerpc/kernel/exceptions-64s.S
@@ -13,6 +13,7 @@
  */
 
 #include <asm/exception-64s.h>
+#include <asm/ptrace.h>
 
 /*
  * We layout physical memory as follows:
diff --git a/arch/powerpc/kernel/fpu.S b/arch/powerpc/kernel/fpu.S
index e86c040ae585..de369558bf0a 100644
--- a/arch/powerpc/kernel/fpu.S
+++ b/arch/powerpc/kernel/fpu.S
@@ -23,6 +23,7 @@
 #include <asm/thread_info.h>
 #include <asm/ppc_asm.h>
 #include <asm/asm-offsets.h>
+#include <asm/ptrace.h>
 
 #ifdef CONFIG_VSX
 #define REST_32FPVSRS(n,c,base)                                         \
diff --git a/arch/powerpc/kernel/head_40x.S b/arch/powerpc/kernel/head_40x.S
index 8278e8bad5a0..9dd21a8c4d52 100644
--- a/arch/powerpc/kernel/head_40x.S
+++ b/arch/powerpc/kernel/head_40x.S
@@ -40,6 +40,7 @@
 #include <asm/thread_info.h>
 #include <asm/ppc_asm.h>
 #include <asm/asm-offsets.h>
+#include <asm/ptrace.h>
 
 /* As with the other PowerPC ports, it is expected that when code
  * execution begins here, the following registers contain valid, yet
diff --git a/arch/powerpc/kernel/head_44x.S b/arch/powerpc/kernel/head_44x.S
index 562305b40a8e..cbb3436b592d 100644
--- a/arch/powerpc/kernel/head_44x.S
+++ b/arch/powerpc/kernel/head_44x.S
@@ -37,6 +37,7 @@
 #include <asm/thread_info.h>
 #include <asm/ppc_asm.h>
 #include <asm/asm-offsets.h>
+#include <asm/ptrace.h>
 #include <asm/synch.h>
 #include "head_booke.h"
 
diff --git a/arch/powerpc/kernel/head_64.S b/arch/powerpc/kernel/head_64.S
index f0dd577e4a5b..ce41b97eb512 100644
--- a/arch/powerpc/kernel/head_64.S
+++ b/arch/powerpc/kernel/head_64.S
@@ -38,6 +38,7 @@
 #include <asm/page_64.h>
 #include <asm/irqflags.h>
 #include <asm/kvm_book3s_asm.h>
+#include <asm/ptrace.h>
 
 /* The physical memory is layed out such that the secondary processor
  * spin code sits at 0x0000...0x00ff. On server, the vectors follow
diff --git a/arch/powerpc/kernel/head_8xx.S b/arch/powerpc/kernel/head_8xx.S
index 1f1a04b5c2a4..1cbf64e6b416 100644
--- a/arch/powerpc/kernel/head_8xx.S
+++ b/arch/powerpc/kernel/head_8xx.S
@@ -29,6 +29,7 @@
 #include <asm/thread_info.h>
 #include <asm/ppc_asm.h>
 #include <asm/asm-offsets.h>
+#include <asm/ptrace.h>
 
 /* Macro to make the code more readable. */
 #ifdef CONFIG_8xx_CPU6
diff --git a/arch/powerpc/kernel/head_fsl_booke.S b/arch/powerpc/kernel/head_fsl_booke.S
index 529b817f473b..3e02710d9562 100644
--- a/arch/powerpc/kernel/head_fsl_booke.S
+++ b/arch/powerpc/kernel/head_fsl_booke.S
@@ -41,6 +41,7 @@
 #include <asm/ppc_asm.h>
 #include <asm/asm-offsets.h>
 #include <asm/cache.h>
+#include <asm/ptrace.h>
 #include "head_booke.h"
 
 /* As with the other PowerPC ports, it is expected that when code
diff --git a/arch/powerpc/kernel/misc.S b/arch/powerpc/kernel/misc.S
index 2d29752cbe16..b69463ec2010 100644
--- a/arch/powerpc/kernel/misc.S
+++ b/arch/powerpc/kernel/misc.S
@@ -122,8 +122,3 @@ _GLOBAL(longjmp)
         mtlr    r0
         mr      r3,r4
         blr
-
-_GLOBAL(__setup_cpu_power7)
-_GLOBAL(__restore_cpu_power7)
-        /* place holder */
-        blr
diff --git a/arch/powerpc/kernel/misc_32.S b/arch/powerpc/kernel/misc_32.S
index a7a570dcdd57..094bd9821ad4 100644
--- a/arch/powerpc/kernel/misc_32.S
+++ b/arch/powerpc/kernel/misc_32.S
@@ -30,6 +30,7 @@
 #include <asm/processor.h>
 #include <asm/kexec.h>
 #include <asm/bug.h>
+#include <asm/ptrace.h>
 
         .text
 
diff --git a/arch/powerpc/kernel/misc_64.S b/arch/powerpc/kernel/misc_64.S
index e5144906a56d..206a321a71d3 100644
--- a/arch/powerpc/kernel/misc_64.S
+++ b/arch/powerpc/kernel/misc_64.S
@@ -25,6 +25,7 @@
 #include <asm/cputable.h>
 #include <asm/thread_info.h>
 #include <asm/kexec.h>
+#include <asm/ptrace.h>
 
         .text
 
diff --git a/arch/powerpc/kernel/ppc_ksyms.c b/arch/powerpc/kernel/ppc_ksyms.c
index ab3e392ac63c..ef3ef566235e 100644
--- a/arch/powerpc/kernel/ppc_ksyms.c
+++ b/arch/powerpc/kernel/ppc_ksyms.c
@@ -186,3 +186,10 @@ EXPORT_SYMBOL(__mtdcr);
 EXPORT_SYMBOL(__mfdcr);
 #endif
 EXPORT_SYMBOL(empty_zero_page);
+
+#ifdef CONFIG_PPC64
+EXPORT_SYMBOL(__arch_hweight8);
+EXPORT_SYMBOL(__arch_hweight16);
+EXPORT_SYMBOL(__arch_hweight32);
+EXPORT_SYMBOL(__arch_hweight64);
+#endif
diff --git a/arch/powerpc/kernel/ppc_save_regs.S b/arch/powerpc/kernel/ppc_save_regs.S
index 5113bd2285e1..e83ba3f078e4 100644
--- a/arch/powerpc/kernel/ppc_save_regs.S
+++ b/arch/powerpc/kernel/ppc_save_regs.S
@@ -11,6 +11,7 @@
 #include <asm/processor.h>
 #include <asm/ppc_asm.h>
 #include <asm/asm-offsets.h>
+#include <asm/ptrace.h>
 
 /*
  * Grab the register values as they are now.
diff --git a/arch/powerpc/kernel/smp.c b/arch/powerpc/kernel/smp.c
index 68034bbf2e4f..981360509172 100644
--- a/arch/powerpc/kernel/smp.c
+++ b/arch/powerpc/kernel/smp.c
@@ -466,7 +466,20 @@ out:
         return id;
 }
 
-/* Must be called when no change can occur to cpu_present_mask,
+/* Helper routines for cpu to core mapping */
+int cpu_core_index_of_thread(int cpu)
+{
+        return cpu >> threads_shift;
+}
+EXPORT_SYMBOL_GPL(cpu_core_index_of_thread);
+
+int cpu_first_thread_of_core(int core)
+{
+        return core << threads_shift;
+}
+EXPORT_SYMBOL_GPL(cpu_first_thread_of_core);
+
+/* Must be called when no change can occur to cpu_present_map,
  * i.e. during cpu online or offline.
  */
 static struct device_node *cpu_to_l2cache(int cpu)
@@ -514,7 +527,7 @@ int __devinit start_secondary(void *unused)
         notify_cpu_starting(cpu);
         set_cpu_online(cpu, true);
         /* Update sibling maps */
-        base = cpu_first_thread_in_core(cpu);
+        base = cpu_first_thread_sibling(cpu);
         for (i = 0; i < threads_per_core; i++) {
                 if (cpu_is_offline(base + i))
                         continue;
@@ -600,7 +613,7 @@ int __cpu_disable(void)
                 return err;
 
         /* Update sibling maps */
-        base = cpu_first_thread_in_core(cpu);
+        base = cpu_first_thread_sibling(cpu);
         for (i = 0; i < threads_per_core; i++) {
                 cpumask_clear_cpu(cpu, cpu_sibling_mask(base + i));
                 cpumask_clear_cpu(base + i, cpu_sibling_mask(cpu));
diff --git a/arch/powerpc/kernel/vector.S b/arch/powerpc/kernel/vector.S
index fe460482fa68..9de6f396cf85 100644
--- a/arch/powerpc/kernel/vector.S
+++ b/arch/powerpc/kernel/vector.S
@@ -5,6 +5,7 @@
 #include <asm/cputable.h>
 #include <asm/thread_info.h>
 #include <asm/page.h>
+#include <asm/ptrace.h>
 
 /*
  * load_up_altivec(unused, unused, tsk)
diff --git a/arch/powerpc/kernel/vio.c b/arch/powerpc/kernel/vio.c
index 441d2a722f06..b2654058f2e4 100644
--- a/arch/powerpc/kernel/vio.c
+++ b/arch/powerpc/kernel/vio.c
@@ -600,6 +600,11 @@ static void vio_dma_iommu_unmap_sg(struct device *dev,
         vio_cmo_dealloc(viodev, alloc_size);
 }
 
+static int vio_dma_iommu_dma_supported(struct device *dev, u64 mask)
+{
+        return dma_iommu_ops.dma_supported(dev, mask);
+}
+
 struct dma_map_ops vio_dma_mapping_ops = {
         .alloc_coherent = vio_dma_iommu_alloc_coherent,
         .free_coherent  = vio_dma_iommu_free_coherent,
@@ -607,6 +612,7 @@ struct dma_map_ops vio_dma_mapping_ops = {
         .unmap_sg       = vio_dma_iommu_unmap_sg,
         .map_page       = vio_dma_iommu_map_page,
         .unmap_page     = vio_dma_iommu_unmap_page,
+        .dma_supported  = vio_dma_iommu_dma_supported,
 
 };
 
@@ -858,8 +864,7 @@ static void vio_cmo_bus_remove(struct vio_dev *viodev)
 
 static void vio_cmo_set_dma_ops(struct vio_dev *viodev)
 {
-        vio_dma_mapping_ops.dma_supported = dma_iommu_ops.dma_supported;
-        viodev->dev.archdata.dma_ops = &vio_dma_mapping_ops;
+        set_dma_ops(&viodev->dev, &vio_dma_mapping_ops);
 }
 
 /**
@@ -1244,7 +1249,7 @@ struct vio_dev *vio_register_device_node(struct device_node *of_node)
         if (firmware_has_feature(FW_FEATURE_CMO))
                 vio_cmo_set_dma_ops(viodev);
         else
-                viodev->dev.archdata.dma_ops = &dma_iommu_ops;
+                set_dma_ops(&viodev->dev, &dma_iommu_ops);
         set_iommu_table_base(&viodev->dev, vio_build_iommu_table(viodev));
         set_dev_node(&viodev->dev, of_node_to_nid(of_node));
 
diff --git a/arch/powerpc/lib/Makefile b/arch/powerpc/lib/Makefile
index 889f2bc106dd..166a6a0ad544 100644
--- a/arch/powerpc/lib/Makefile
+++ b/arch/powerpc/lib/Makefile
@@ -16,7 +16,7 @@ obj-$(CONFIG_HAS_IOMEM)	+= devres.o
 
 obj-$(CONFIG_PPC64)     += copypage_64.o copyuser_64.o \
                            memcpy_64.o usercopy_64.o mem_64.o string.o \
-                           checksum_wrappers_64.o
+                           checksum_wrappers_64.o hweight_64.o
 obj-$(CONFIG_XMON)      += sstep.o ldstfp.o
 obj-$(CONFIG_KPROBES)   += sstep.o ldstfp.o
 obj-$(CONFIG_HAVE_HW_BREAKPOINT)        += sstep.o ldstfp.o
diff --git a/arch/powerpc/lib/hweight_64.S b/arch/powerpc/lib/hweight_64.S
new file mode 100644
index 000000000000..ee2320bb5ddf
--- /dev/null
+++ b/arch/powerpc/lib/hweight_64.S
@@ -0,0 +1,110 @@
+/*
+ * 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.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ * Copyright (C) IBM Corporation, 2010
+ *
+ * Author: Anton Blanchard <anton@au.ibm.com>
+ */
+#include <asm/processor.h>
+#include <asm/ppc_asm.h>
+
+/* Note: This code relies on -mminimal-toc */
+
+_GLOBAL(__arch_hweight8)
+BEGIN_FTR_SECTION
+        b .__sw_hweight8
+        nop
+        nop
+FTR_SECTION_ELSE
+        popcntb r3,r3
+        clrldi  r3,r3,64-8
+        blr
+ALT_FTR_SECTION_END_IFCLR(CPU_FTR_POPCNTB)
+
+_GLOBAL(__arch_hweight16)
+BEGIN_FTR_SECTION
+        b .__sw_hweight16
+        nop
+        nop
+        nop
+        nop
+FTR_SECTION_ELSE
+  BEGIN_FTR_SECTION_NESTED(50)
+        popcntb r3,r3
+        srdi    r4,r3,8
+        add     r3,r4,r3
+        clrldi  r3,r3,64-8
+        blr
+  FTR_SECTION_ELSE_NESTED(50)
+        clrlwi  r3,r3,16
+        popcntw r3,r3
+        clrldi  r3,r3,64-8
+        blr
+  ALT_FTR_SECTION_END_NESTED_IFCLR(CPU_FTR_POPCNTD, 50)
+ALT_FTR_SECTION_END_IFCLR(CPU_FTR_POPCNTB)
+
+_GLOBAL(__arch_hweight32)
+BEGIN_FTR_SECTION
+        b .__sw_hweight32
+        nop
+        nop
+        nop
+        nop
+        nop
+        nop
+FTR_SECTION_ELSE
+  BEGIN_FTR_SECTION_NESTED(51)
+        popcntb r3,r3
+        srdi    r4,r3,16
+        add     r3,r4,r3
+        srdi    r4,r3,8
+        add     r3,r4,r3
+        clrldi  r3,r3,64-8
+        blr
+  FTR_SECTION_ELSE_NESTED(51)
+        popcntw r3,r3
+        clrldi  r3,r3,64-8
+        blr
+  ALT_FTR_SECTION_END_NESTED_IFCLR(CPU_FTR_POPCNTD, 51)
+ALT_FTR_SECTION_END_IFCLR(CPU_FTR_POPCNTB)
+
+_GLOBAL(__arch_hweight64)
+BEGIN_FTR_SECTION
+        b .__sw_hweight64
+        nop
+        nop
+        nop
+        nop
+        nop
+        nop
+        nop
+        nop
+FTR_SECTION_ELSE
+  BEGIN_FTR_SECTION_NESTED(52)
+        popcntb r3,r3
+        srdi    r4,r3,32
+        add     r3,r4,r3
+        srdi    r4,r3,16
+        add     r3,r4,r3
+        srdi    r4,r3,8
+        add     r3,r4,r3
+        clrldi  r3,r3,64-8
+        blr
+  FTR_SECTION_ELSE_NESTED(52)
+        popcntd r3,r3
+        clrldi  r3,r3,64-8
+        blr
+  ALT_FTR_SECTION_END_NESTED_IFCLR(CPU_FTR_POPCNTD, 52)
+ALT_FTR_SECTION_END_IFCLR(CPU_FTR_POPCNTB)
diff --git a/arch/powerpc/mm/hash_utils_64.c b/arch/powerpc/mm/hash_utils_64.c
index 5e9584405c45..a5991facddce 100644
--- a/arch/powerpc/mm/hash_utils_64.c
+++ b/arch/powerpc/mm/hash_utils_64.c
@@ -1070,7 +1070,7 @@ void hash_preload(struct mm_struct *mm, unsigned long ea,
                   unsigned long access, unsigned long trap)
 {
         unsigned long vsid;
-        void *pgdir;
+        pgd_t *pgdir;
         pte_t *ptep;
         unsigned long flags;
         int rc, ssize, local = 0;
diff --git a/arch/powerpc/mm/mmu_context_nohash.c b/arch/powerpc/mm/mmu_context_nohash.c
index 5ce99848d91e..c0aab52da3a5 100644
--- a/arch/powerpc/mm/mmu_context_nohash.c
+++ b/arch/powerpc/mm/mmu_context_nohash.c
@@ -111,8 +111,8 @@ static unsigned int steal_context_smp(unsigned int id)
                  * a core map instead but this will do for now.
                  */
                 for_each_cpu(cpu, mm_cpumask(mm)) {
-                        for (i = cpu_first_thread_in_core(cpu);
-                             i <= cpu_last_thread_in_core(cpu); i++)
+                        for (i = cpu_first_thread_sibling(cpu);
+                             i <= cpu_last_thread_sibling(cpu); i++)
                                 __set_bit(id, stale_map[i]);
                         cpu = i - 1;
                 }
@@ -264,14 +264,14 @@ void switch_mmu_context(struct mm_struct *prev, struct mm_struct *next)
          */
         if (test_bit(id, stale_map[cpu])) {
                 pr_hardcont(" | stale flush %d [%d..%d]",
-                            id, cpu_first_thread_in_core(cpu),
-                            cpu_last_thread_in_core(cpu));
+                            id, cpu_first_thread_sibling(cpu),
+                            cpu_last_thread_sibling(cpu));
 
                 local_flush_tlb_mm(next);
 
                 /* XXX This clear should ultimately be part of local_flush_tlb_mm */
-                for (i = cpu_first_thread_in_core(cpu);
-                     i <= cpu_last_thread_in_core(cpu); i++) {
+                for (i = cpu_first_thread_sibling(cpu);
+                     i <= cpu_last_thread_sibling(cpu); i++) {
                         __clear_bit(id, stale_map[i]);
                 }
         }
diff --git a/arch/powerpc/mm/numa.c b/arch/powerpc/mm/numa.c
index 74505b245374..8c0944c465f6 100644
--- a/arch/powerpc/mm/numa.c
+++ b/arch/powerpc/mm/numa.c
@@ -1247,4 +1247,30 @@ int hot_add_scn_to_nid(unsigned long scn_addr)
         return nid;
 }
 
+static u64 hot_add_drconf_memory_max(void)
+{
+        struct device_node *memory = NULL;
+        unsigned int drconf_cell_cnt = 0;
+        u64 lmb_size = 0;
+        const u32 *dm = 0;
+
+        memory = of_find_node_by_path("/ibm,dynamic-reconfiguration-memory");
+        if (memory) {
+                drconf_cell_cnt = of_get_drconf_memory(memory, &dm);
+                lmb_size = of_get_lmb_size(memory);
+                of_node_put(memory);
+        }
+        return lmb_size * drconf_cell_cnt;
+}
+
+/*
+ * memory_hotplug_max - return max address of memory that may be added
+ *
+ * This is currently only used on systems that support drconfig memory
+ * hotplug.
+ */
+u64 memory_hotplug_max(void)
+{
+        return max(hot_add_drconf_memory_max(), memblock_end_of_DRAM());
+}
 #endif /* CONFIG_MEMORY_HOTPLUG */
diff --git a/arch/powerpc/platforms/cell/beat_iommu.c b/arch/powerpc/platforms/cell/beat_iommu.c
index beec405eb6f8..3ce685568935 100644
--- a/arch/powerpc/platforms/cell/beat_iommu.c
+++ b/arch/powerpc/platforms/cell/beat_iommu.c
@@ -76,7 +76,7 @@ static void __init celleb_init_direct_mapping(void)
 
 static void celleb_dma_dev_setup(struct device *dev)
 {
-        dev->archdata.dma_ops = get_pci_dma_ops();
+        set_dma_ops(dev, &dma_direct_ops);
         set_dma_offset(dev, celleb_dma_direct_offset);
 }
 
@@ -106,7 +106,6 @@ static struct notifier_block celleb_of_bus_notifier = {
 static int __init celleb_init_iommu(void)
 {
         celleb_init_direct_mapping();
-        set_pci_dma_ops(&dma_direct_ops);
         ppc_md.pci_dma_dev_setup = celleb_pci_dma_dev_setup;
         bus_register_notifier(&platform_bus_type, &celleb_of_bus_notifier);
 
diff --git a/arch/powerpc/platforms/cell/spufs/lscsa_alloc.c b/arch/powerpc/platforms/cell/spufs/lscsa_alloc.c
index a101abf17504..3b894f585280 100644
--- a/arch/powerpc/platforms/cell/spufs/lscsa_alloc.c
+++ b/arch/powerpc/platforms/cell/spufs/lscsa_alloc.c
@@ -36,10 +36,9 @@ static int spu_alloc_lscsa_std(struct spu_state *csa)
         struct spu_lscsa *lscsa;
         unsigned char *p;
 
-        lscsa = vmalloc(sizeof(struct spu_lscsa));
+        lscsa = vzalloc(sizeof(struct spu_lscsa));
         if (!lscsa)
                 return -ENOMEM;
-        memset(lscsa, 0, sizeof(struct spu_lscsa));
         csa->lscsa = lscsa;
 
         /* Set LS pages reserved to allow for user-space mapping. */
diff --git a/arch/powerpc/platforms/iseries/mf.c b/arch/powerpc/platforms/iseries/mf.c
index 42d0a886de05..b5e026bdca21 100644
--- a/arch/powerpc/platforms/iseries/mf.c
+++ b/arch/powerpc/platforms/iseries/mf.c
@@ -1045,71 +1045,9 @@ static const struct file_operations mf_side_proc_fops = {
         .write          = mf_side_proc_write,
 };
 
-#if 0
-static void mf_getSrcHistory(char *buffer, int size)
-{
-        struct IplTypeReturnStuff return_stuff;
-        struct pending_event *ev = new_pending_event();
-        int rc = 0;
-        char *pages[4];
-
-        pages[0] = kmalloc(4096, GFP_ATOMIC);
-        pages[1] = kmalloc(4096, GFP_ATOMIC);
-        pages[2] = kmalloc(4096, GFP_ATOMIC);
-        pages[3] = kmalloc(4096, GFP_ATOMIC);
-        if ((ev == NULL) || (pages[0] == NULL) || (pages[1] == NULL)
-                         || (pages[2] == NULL) || (pages[3] == NULL))
-                return -ENOMEM;
-
-        return_stuff.xType = 0;
-        return_stuff.xRc = 0;
-        return_stuff.xDone = 0;
-        ev->event.hp_lp_event.xSubtype = 6;
-        ev->event.hp_lp_event.x.xSubtypeData =
-                subtype_data('M', 'F', 'V', 'I');
-        ev->event.data.vsp_cmd.xEvent = &return_stuff;
-        ev->event.data.vsp_cmd.cmd = 4;
-        ev->event.data.vsp_cmd.lp_index = HvLpConfig_getLpIndex();
-        ev->event.data.vsp_cmd.result_code = 0xFF;
-        ev->event.data.vsp_cmd.reserved = 0;
-        ev->event.data.vsp_cmd.sub_data.page[0] = iseries_hv_addr(pages[0]);
-        ev->event.data.vsp_cmd.sub_data.page[1] = iseries_hv_addr(pages[1]);
-        ev->event.data.vsp_cmd.sub_data.page[2] = iseries_hv_addr(pages[2]);
-        ev->event.data.vsp_cmd.sub_data.page[3] = iseries_hv_addr(pages[3]);
-        mb();
-        if (signal_event(ev) != 0)
-                return;
-
-        while (return_stuff.xDone != 1)
-                udelay(10);
-        if (return_stuff.xRc == 0)
-                memcpy(buffer, pages[0], size);
-        kfree(pages[0]);
-        kfree(pages[1]);
-        kfree(pages[2]);
-        kfree(pages[3]);
-}
-#endif
-
 static int mf_src_proc_show(struct seq_file *m, void *v)
 {
-#if 0
-        int len;
-
-        mf_getSrcHistory(page, count);
-        len = count;
-        len -= off;
-        if (len < count) {
-                *eof = 1;
-                if (len <= 0)
-                        return 0;
-        } else
-                len = count;
-        *start = page + off;
-        return len;
-#else
         return 0;
-#endif
 }
 
 static int mf_src_proc_open(struct inode *inode, struct file *file)
diff --git a/arch/powerpc/platforms/pasemi/iommu.c b/arch/powerpc/platforms/pasemi/iommu.c
index 1f9fb2c57761..14943ef01918 100644
--- a/arch/powerpc/platforms/pasemi/iommu.c
+++ b/arch/powerpc/platforms/pasemi/iommu.c
@@ -156,20 +156,12 @@ static void iommu_table_iobmap_setup(void)
 
 static void pci_dma_bus_setup_pasemi(struct pci_bus *bus)
 {
-        struct device_node *dn;
-
         pr_debug("pci_dma_bus_setup, bus %p, bus->self %p\n", bus, bus->self);
 
         if (!iommu_table_iobmap_inited) {
                 iommu_table_iobmap_inited = 1;
                 iommu_table_iobmap_setup();
         }
-
-        dn = pci_bus_to_OF_node(bus);
-
-        if (dn)
-                PCI_DN(dn)->iommu_table = &iommu_table_iobmap;
-
 }
 
 
@@ -192,9 +184,6 @@ static void pci_dma_dev_setup_pasemi(struct pci_dev *dev)
         set_iommu_table_base(&dev->dev, &iommu_table_iobmap);
 }
 
-static void pci_dma_bus_setup_null(struct pci_bus *b) { }
-static void pci_dma_dev_setup_null(struct pci_dev *d) { }
-
 int __init iob_init(struct device_node *dn)
 {
         unsigned long tmp;
@@ -251,14 +240,8 @@ void __init iommu_init_early_pasemi(void)
         iommu_off = of_chosen &&
                         of_get_property(of_chosen, "linux,iommu-off", NULL);
 #endif
-        if (iommu_off) {
-                /* Direct I/O, IOMMU off */
-                ppc_md.pci_dma_dev_setup = pci_dma_dev_setup_null;
-                ppc_md.pci_dma_bus_setup = pci_dma_bus_setup_null;
-                set_pci_dma_ops(&dma_direct_ops);
-
+        if (iommu_off)
                 return;
-        }
 
         iob_init(NULL);
 
diff --git a/arch/powerpc/platforms/pseries/Kconfig b/arch/powerpc/platforms/pseries/Kconfig
index 3139814f6439..5d1b743dbe7e 100644
--- a/arch/powerpc/platforms/pseries/Kconfig
+++ b/arch/powerpc/platforms/pseries/Kconfig
@@ -33,6 +33,16 @@ config PSERIES_MSI
        depends on PCI_MSI && EEH
        default y
 
+config PSERIES_ENERGY
+        tristate "pSeries energy management capabilities driver"
+        depends on PPC_PSERIES
+        default y
+        help
+          Provides interface to platform energy management capabilities
+          on supported PSERIES platforms.
+          Provides: /sys/devices/system/cpu/pseries_(de)activation_hint_list
+          and /sys/devices/system/cpu/cpuN/pseries_(de)activation_hint
+
 config SCANLOG
         tristate "Scanlog dump interface"
         depends on RTAS_PROC && PPC_PSERIES
diff --git a/arch/powerpc/platforms/pseries/Makefile b/arch/powerpc/platforms/pseries/Makefile
index 59eb8bdaa79d..fc5237810ece 100644
--- a/arch/powerpc/platforms/pseries/Makefile
+++ b/arch/powerpc/platforms/pseries/Makefile
@@ -11,6 +11,7 @@ obj-$(CONFIG_EEH)	+= eeh.o eeh_cache.o eeh_driver.o eeh_event.o eeh_sysfs.o
 obj-$(CONFIG_KEXEC)     += kexec.o
 obj-$(CONFIG_PCI)       += pci.o pci_dlpar.o
 obj-$(CONFIG_PSERIES_MSI)       += msi.o
+obj-$(CONFIG_PSERIES_ENERGY)    += pseries_energy.o
 
 obj-$(CONFIG_HOTPLUG_CPU)       += hotplug-cpu.o
 obj-$(CONFIG_MEMORY_HOTPLUG)    += hotplug-memory.o
diff --git a/arch/powerpc/platforms/pseries/firmware.c b/arch/powerpc/platforms/pseries/firmware.c
index 0a14d8cd314f..0b0eff0cce35 100644
--- a/arch/powerpc/platforms/pseries/firmware.c
+++ b/arch/powerpc/platforms/pseries/firmware.c
@@ -55,6 +55,7 @@ firmware_features_table[FIRMWARE_MAX_FEATURES] = {
         {FW_FEATURE_XDABR,              "hcall-xdabr"},
         {FW_FEATURE_MULTITCE,           "hcall-multi-tce"},
         {FW_FEATURE_SPLPAR,             "hcall-splpar"},
+        {FW_FEATURE_VPHN,               "hcall-vphn"},
 };
 
 /* Build up the firmware features bitmask using the contents of
diff --git a/arch/powerpc/platforms/pseries/hvCall.S b/arch/powerpc/platforms/pseries/hvCall.S
index 48d20573e4de..fd05fdee576a 100644
--- a/arch/powerpc/platforms/pseries/hvCall.S
+++ b/arch/powerpc/platforms/pseries/hvCall.S
@@ -11,6 +11,7 @@
 #include <asm/processor.h>
 #include <asm/ppc_asm.h>
 #include <asm/asm-offsets.h>
+#include <asm/ptrace.h>
         
 #define STK_PARM(i)     (48 + ((i)-3)*8)
 
diff --git a/arch/powerpc/platforms/pseries/iommu.c b/arch/powerpc/platforms/pseries/iommu.c
index a77bcaed80af..9fecb313a4c9 100644
--- a/arch/powerpc/platforms/pseries/iommu.c
+++ b/arch/powerpc/platforms/pseries/iommu.c
@@ -140,7 +140,7 @@ static int tce_build_pSeriesLP(struct iommu_table *tbl, long tcenum,
         return ret;
 }
 
-static DEFINE_PER_CPU(u64 *, tce_page) = NULL;
+static DEFINE_PER_CPU(u64 *, tce_page);
 
 static int tce_buildmulti_pSeriesLP(struct iommu_table *tbl, long tcenum,
                                      long npages, unsigned long uaddr,
@@ -589,13 +589,8 @@ static struct notifier_block iommu_reconfig_nb = {
 /* These are called very early. */
 void iommu_init_early_pSeries(void)
 {
-        if (of_chosen && of_get_property(of_chosen, "linux,iommu-off", NULL)) {
-                /* Direct I/O, IOMMU off */
-                ppc_md.pci_dma_dev_setup = NULL;
-                ppc_md.pci_dma_bus_setup = NULL;
-                set_pci_dma_ops(&dma_direct_ops);
+        if (of_chosen && of_get_property(of_chosen, "linux,iommu-off", NULL))
                 return;
-        }
 
         if (firmware_has_feature(FW_FEATURE_LPAR)) {
                 if (firmware_has_feature(FW_FEATURE_MULTITCE)) {
@@ -622,3 +617,17 @@ void iommu_init_early_pSeries(void)
         set_pci_dma_ops(&dma_iommu_ops);
 }
 
+static int __init disable_multitce(char *str)
+{
+        if (strcmp(str, "off") == 0 &&
+            firmware_has_feature(FW_FEATURE_LPAR) &&
+            firmware_has_feature(FW_FEATURE_MULTITCE)) {
+                printk(KERN_INFO "Disabling MULTITCE firmware feature\n");
+                ppc_md.tce_build = tce_build_pSeriesLP;
+                ppc_md.tce_free  = tce_free_pSeriesLP;
+                powerpc_firmware_features &= ~FW_FEATURE_MULTITCE;
+        }
+        return 1;
+}
+
+__setup("multitce=", disable_multitce);
diff --git a/arch/powerpc/platforms/pseries/lpar.c b/arch/powerpc/platforms/pseries/lpar.c
index f129040d974c..5d3ea9f60dd7 100644
--- a/arch/powerpc/platforms/pseries/lpar.c
+++ b/arch/powerpc/platforms/pseries/lpar.c
@@ -627,6 +627,18 @@ static void pSeries_lpar_flush_hash_range(unsigned long number, int local)
                 spin_unlock_irqrestore(&pSeries_lpar_tlbie_lock, flags);
 }
 
+static int __init disable_bulk_remove(char *str)
+{
+        if (strcmp(str, "off") == 0 &&
+            firmware_has_feature(FW_FEATURE_BULK_REMOVE)) {
+                        printk(KERN_INFO "Disabling BULK_REMOVE firmware feature");
+                        powerpc_firmware_features &= ~FW_FEATURE_BULK_REMOVE;
+        }
+        return 1;
+}
+
+__setup("bulk_remove=", disable_bulk_remove);
+
 void __init hpte_init_lpar(void)
 {
         ppc_md.hpte_invalidate  = pSeries_lpar_hpte_invalidate;
diff --git a/arch/powerpc/platforms/pseries/pseries_energy.c b/arch/powerpc/platforms/pseries/pseries_energy.c
new file mode 100644
index 000000000000..c8b3c69fe891
--- /dev/null
+++ b/arch/powerpc/platforms/pseries/pseries_energy.c
@@ -0,0 +1,326 @@
+/*
+ * POWER platform energy management driver
+ * Copyright (C) 2010 IBM Corporation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * version 2 as published by the Free Software Foundation.
+ *
+ * This pseries platform device driver provides access to
+ * platform energy management capabilities.
+ */
+
+#include <linux/module.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/init.h>
+#include <linux/seq_file.h>
+#include <linux/sysdev.h>
+#include <linux/cpu.h>
+#include <linux/of.h>
+#include <asm/cputhreads.h>
+#include <asm/page.h>
+#include <asm/hvcall.h>
+
+
+#define MODULE_VERS "1.0"
+#define MODULE_NAME "pseries_energy"
+
+/* Driver flags */
+
+static int sysfs_entries;
+
+/* Helper routines */
+
+/*
+ * Routine to detect firmware support for hcall
+ * return 1 if H_BEST_ENERGY is supported
+ * else return 0
+ */
+
+static int check_for_h_best_energy(void)
+{
+        struct device_node *rtas = NULL;
+        const char *hypertas, *s;
+        int length;
+        int rc = 0;
+
+        rtas = of_find_node_by_path("/rtas");
+        if (!rtas)
+                return 0;
+
+        hypertas = of_get_property(rtas, "ibm,hypertas-functions", &length);
+        if (!hypertas) {
+                of_node_put(rtas);
+                return 0;
+        }
+
+        /* hypertas will have list of strings with hcall names */
+        for (s = hypertas; s < hypertas + length; s += strlen(s) + 1) {
+                if (!strncmp("hcall-best-energy-1", s, 19)) {
+                        rc = 1; /* Found the string */
+                        break;
+                }
+        }
+        of_node_put(rtas);
+        return rc;
+}
+
+/* Helper Routines to convert between drc_index to cpu numbers */
+
+static u32 cpu_to_drc_index(int cpu)
+{
+        struct device_node *dn = NULL;
+        const int *indexes;
+        int i;
+        int rc = 1;
+        u32 ret = 0;
+
+        dn = of_find_node_by_path("/cpus");
+        if (dn == NULL)
+                goto err;
+        indexes = of_get_property(dn, "ibm,drc-indexes", NULL);
+        if (indexes == NULL)
+                goto err_of_node_put;
+        /* Convert logical cpu number to core number */
+        i = cpu_core_index_of_thread(cpu);
+        /*
+         * The first element indexes[0] is the number of drc_indexes
+         * returned in the list.  Hence i+1 will get the drc_index
+         * corresponding to core number i.
+         */
+        WARN_ON(i > indexes[0]);
+        ret = indexes[i + 1];
+        rc = 0;
+
+err_of_node_put:
+        of_node_put(dn);
+err:
+        if (rc)
+                printk(KERN_WARNING "cpu_to_drc_index(%d) failed", cpu);
+        return ret;
+}
+
+static int drc_index_to_cpu(u32 drc_index)
+{
+        struct device_node *dn = NULL;
+        const int *indexes;
+        int i, cpu = 0;
+        int rc = 1;
+
+        dn = of_find_node_by_path("/cpus");
+        if (dn == NULL)
+                goto err;
+        indexes = of_get_property(dn, "ibm,drc-indexes", NULL);
+        if (indexes == NULL)
+                goto err_of_node_put;
+        /*
+         * First element in the array is the number of drc_indexes
+         * returned.  Search through the list to find the matching
+         * drc_index and get the core number
+         */
+        for (i = 0; i < indexes[0]; i++) {
+                if (indexes[i + 1] == drc_index)
+                        break;
+        }
+        /* Convert core number to logical cpu number */
+        cpu = cpu_first_thread_of_core(i);
+        rc = 0;
+
+err_of_node_put:
+        of_node_put(dn);
+err:
+        if (rc)
+                printk(KERN_WARNING "drc_index_to_cpu(%d) failed", drc_index);
+        return cpu;
+}
+
+/*
+ * pseries hypervisor call H_BEST_ENERGY provides hints to OS on
+ * preferred logical cpus to activate or deactivate for optimized
+ * energy consumption.
+ */
+
+#define FLAGS_MODE1     0x004E200000080E01
+#define FLAGS_MODE2     0x004E200000080401
+#define FLAGS_ACTIVATE  0x100
+
+static ssize_t get_best_energy_list(char *page, int activate)
+{
+        int rc, cnt, i, cpu;
+        unsigned long retbuf[PLPAR_HCALL9_BUFSIZE];
+        unsigned long flags = 0;
+        u32 *buf_page;
+        char *s = page;
+
+        buf_page = (u32 *) get_zeroed_page(GFP_KERNEL);
+        if (!buf_page)
+                return -ENOMEM;
+
+        flags = FLAGS_MODE1;
+        if (activate)
+                flags |= FLAGS_ACTIVATE;
+
+        rc = plpar_hcall9(H_BEST_ENERGY, retbuf, flags, 0, __pa(buf_page),
+                                0, 0, 0, 0, 0, 0);
+        if (rc != H_SUCCESS) {
+                free_page((unsigned long) buf_page);
+                return -EINVAL;
+        }
+
+        cnt = retbuf[0];
+        for (i = 0; i < cnt; i++) {
+                cpu = drc_index_to_cpu(buf_page[2*i+1]);
+                if ((cpu_online(cpu) && !activate) ||
+                    (!cpu_online(cpu) && activate))
+                        s += sprintf(s, "%d,", cpu);
+        }
+        if (s > page) { /* Something to show */
+                s--; /* Suppress last comma */
+                s += sprintf(s, "\n");
+        }
+
+        free_page((unsigned long) buf_page);
+        return s-page;
+}
+
+static ssize_t get_best_energy_data(struct sys_device *dev,
+                                        char *page, int activate)
+{
+        int rc;
+        unsigned long retbuf[PLPAR_HCALL9_BUFSIZE];
+        unsigned long flags = 0;
+
+        flags = FLAGS_MODE2;
+        if (activate)
+                flags |= FLAGS_ACTIVATE;
+
+        rc = plpar_hcall9(H_BEST_ENERGY, retbuf, flags,
+                                cpu_to_drc_index(dev->id),
+                                0, 0, 0, 0, 0, 0, 0);
+
+        if (rc != H_SUCCESS)
+                return -EINVAL;
+
+        return sprintf(page, "%lu\n", retbuf[1] >> 32);
+}
+
+/* Wrapper functions */
+
+static ssize_t cpu_activate_hint_list_show(struct sysdev_class *class,
+                        struct sysdev_class_attribute *attr, char *page)
+{
+        return get_best_energy_list(page, 1);
+}
+
+static ssize_t cpu_deactivate_hint_list_show(struct sysdev_class *class,
+                        struct sysdev_class_attribute *attr, char *page)
+{
+        return get_best_energy_list(page, 0);
+}
+
+static ssize_t percpu_activate_hint_show(struct sys_device *dev,
+                        struct sysdev_attribute *attr, char *page)
+{
+        return get_best_energy_data(dev, page, 1);
+}
+
+static ssize_t percpu_deactivate_hint_show(struct sys_device *dev,
+                        struct sysdev_attribute *attr, char *page)
+{
+        return get_best_energy_data(dev, page, 0);
+}
+
+/*
+ * Create sysfs interface:
+ * /sys/devices/system/cpu/pseries_activate_hint_list
+ * /sys/devices/system/cpu/pseries_deactivate_hint_list
+ *      Comma separated list of cpus to activate or deactivate
+ * /sys/devices/system/cpu/cpuN/pseries_activate_hint
+ * /sys/devices/system/cpu/cpuN/pseries_deactivate_hint
+ *      Per-cpu value of the hint
+ */
+
+struct sysdev_class_attribute attr_cpu_activate_hint_list =
+                _SYSDEV_CLASS_ATTR(pseries_activate_hint_list, 0444,
+                cpu_activate_hint_list_show, NULL);
+
+struct sysdev_class_attribute attr_cpu_deactivate_hint_list =
+                _SYSDEV_CLASS_ATTR(pseries_deactivate_hint_list, 0444,
+                cpu_deactivate_hint_list_show, NULL);
+
+struct sysdev_attribute attr_percpu_activate_hint =
+                _SYSDEV_ATTR(pseries_activate_hint, 0444,
+                percpu_activate_hint_show, NULL);
+
+struct sysdev_attribute attr_percpu_deactivate_hint =
+                _SYSDEV_ATTR(pseries_deactivate_hint, 0444,
+                percpu_deactivate_hint_show, NULL);
+
+static int __init pseries_energy_init(void)
+{
+        int cpu, err;
+        struct sys_device *cpu_sys_dev;
+
+        if (!check_for_h_best_energy()) {
+                printk(KERN_INFO "Hypercall H_BEST_ENERGY not supported\n");
+                return 0;
+        }
+        /* Create the sysfs files */
+        err = sysfs_create_file(&cpu_sysdev_class.kset.kobj,
+                                &attr_cpu_activate_hint_list.attr);
+        if (!err)
+                err = sysfs_create_file(&cpu_sysdev_class.kset.kobj,
+                                &attr_cpu_deactivate_hint_list.attr);
+
+        if (err)
+                return err;
+        for_each_possible_cpu(cpu) {
+                cpu_sys_dev = get_cpu_sysdev(cpu);
+                err = sysfs_create_file(&cpu_sys_dev->kobj,
+                                &attr_percpu_activate_hint.attr);
+                if (err)
+                        break;
+                err = sysfs_create_file(&cpu_sys_dev->kobj,
+                                &attr_percpu_deactivate_hint.attr);
+                if (err)
+                        break;
+        }
+
+        if (err)
+                return err;
+
+        sysfs_entries = 1; /* Removed entries on cleanup */
+        return 0;
+
+}
+
+static void __exit pseries_energy_cleanup(void)
+{
+        int cpu;
+        struct sys_device *cpu_sys_dev;
+
+        if (!sysfs_entries)
+                return;
+
+        /* Remove the sysfs files */
+        sysfs_remove_file(&cpu_sysdev_class.kset.kobj,
+                                &attr_cpu_activate_hint_list.attr);
+
+        sysfs_remove_file(&cpu_sysdev_class.kset.kobj,
+                                &attr_cpu_deactivate_hint_list.attr);
+
+        for_each_possible_cpu(cpu) {
+                cpu_sys_dev = get_cpu_sysdev(cpu);
+                sysfs_remove_file(&cpu_sys_dev->kobj,
+                                &attr_percpu_activate_hint.attr);
+                sysfs_remove_file(&cpu_sys_dev->kobj,
+                                &attr_percpu_deactivate_hint.attr);
+        }
+}
+
+module_init(pseries_energy_init);
+module_exit(pseries_energy_cleanup);
+MODULE_DESCRIPTION("Driver for pSeries platform energy management");
+MODULE_AUTHOR("Vaidyanathan Srinivasan");
+MODULE_LICENSE("GPL");
diff --git a/arch/powerpc/sysdev/dart_iommu.c b/arch/powerpc/sysdev/dart_iommu.c
index 17cf15ec38be..8e9e06a7ca59 100644
--- a/arch/powerpc/sysdev/dart_iommu.c
+++ b/arch/powerpc/sysdev/dart_iommu.c
@@ -312,17 +312,10 @@ static void pci_dma_dev_setup_dart(struct pci_dev *dev)
 
 static void pci_dma_bus_setup_dart(struct pci_bus *bus)
 {
-        struct device_node *dn;
-
         if (!iommu_table_dart_inited) {
                 iommu_table_dart_inited = 1;
                 iommu_table_dart_setup();
         }
-
-        dn = pci_bus_to_OF_node(bus);
-
-        if (dn)
-                PCI_DN(dn)->iommu_table = &iommu_table_dart;
 }
 
 static bool dart_device_on_pcie(struct device *dev)
@@ -373,7 +366,7 @@ void __init iommu_init_early_dart(void)
         if (dn == NULL) {
                 dn = of_find_compatible_node(NULL, "dart", "u4-dart");
                 if (dn == NULL)
-                        goto bail;
+                        return; /* use default direct_dma_ops */
                 dart_is_u4 = 1;
         }
 
diff --git a/drivers/char/hvc_vio.c b/drivers/char/hvc_vio.c
index 27370e99c66f..5e2f52b33327 100644
--- a/drivers/char/hvc_vio.c
+++ b/drivers/char/hvc_vio.c
@@ -39,7 +39,7 @@
 
 #include "hvc_console.h"
 
-char hvc_driver_name[] = "hvc_console";
+static const char hvc_driver_name[] = "hvc_console";
 
 static struct vio_device_id hvc_driver_table[] __devinitdata = {
         {"serial", "hvterm1"},
diff --git a/drivers/macintosh/macio_asic.c b/drivers/macintosh/macio_asic.c
index b6e7ddc09d76..4daf9e5a7736 100644
--- a/drivers/macintosh/macio_asic.c
+++ b/drivers/macintosh/macio_asic.c
@@ -387,11 +387,10 @@ static struct macio_dev * macio_add_one_device(struct macio_chip *chip,
         /* Set the DMA ops to the ones from the PCI device, this could be
          * fishy if we didn't know that on PowerMac it's always direct ops
          * or iommu ops that will work fine
+         *
+         * To get all the fields, copy all archdata
          */
-        dev->ofdev.dev.archdata.dma_ops =
-                chip->lbus.pdev->dev.archdata.dma_ops;
-        dev->ofdev.dev.archdata.dma_data =
-                chip->lbus.pdev->dev.archdata.dma_data;
+        dev->ofdev.dev.archdata = chip->lbus.pdev->dev.archdata;
 #endif /* CONFIG_PCI */
 
 #ifdef DEBUG
diff --git a/drivers/ps3/Makefile b/drivers/ps3/Makefile
index ccea15c11c19..50cb1e1b4a12 100644
--- a/drivers/ps3/Makefile
+++ b/drivers/ps3/Makefile
@@ -1,6 +1,6 @@
 obj-$(CONFIG_PS3_VUART) += ps3-vuart.o
 obj-$(CONFIG_PS3_PS3AV) += ps3av_mod.o
-ps3av_mod-objs          += ps3av.o ps3av_cmd.o
+ps3av_mod-y             := ps3av.o ps3av_cmd.o
 obj-$(CONFIG_PPC_PS3) += sys-manager-core.o
 obj-$(CONFIG_PS3_SYS_MANAGER) += ps3-sys-manager.o
 obj-$(CONFIG_PS3_STORAGE) += ps3stor_lib.o
diff --git a/drivers/rtc/rtc-cmos.c b/drivers/rtc/rtc-cmos.c
index 5856167a0c90..7e6ce626b7f1 100644
--- a/drivers/rtc/rtc-cmos.c
+++ b/drivers/rtc/rtc-cmos.c
@@ -687,7 +687,8 @@ cmos_do_probe(struct device *dev, struct resource *ports, int rtc_irq)
 #if     defined(CONFIG_ATARI)
         address_space = 64;
 #elif defined(__i386__) || defined(__x86_64__) || defined(__arm__) \
-                        || defined(__sparc__) || defined(__mips__)
+                        || defined(__sparc__) || defined(__mips__) \
+                        || defined(__powerpc__)
         address_space = 128;
 #else
 #warning Assuming 128 bytes of RTC+NVRAM address space, not 64 bytes.