Merge commit 'kumar/next' into merge

22 files changed, 1045 insertions, 174 deletions

diff --git a/arch/powerpc/boot/dts/gef_ppc9a.dts b/arch/powerpc/boot/dts/gef_ppc9a.dts
index 977f260d5e64..83f4b79dff85 100644
--- a/arch/powerpc/boot/dts/gef_ppc9a.dts
+++ b/arch/powerpc/boot/dts/gef_ppc9a.dts
@@ -1,7 +1,7 @@
 /*
- * GE Fanuc PPC9A Device Tree Source
+ * GE PPC9A Device Tree Source
  *
- * Copyright 2008 GE Fanuc Intelligent Platforms Embedded Systems, Inc.
+ * Copyright 2008 GE Intelligent Platforms Embedded Systems, Inc.
  *
  * 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
diff --git a/arch/powerpc/boot/dts/gef_sbc310.dts b/arch/powerpc/boot/dts/gef_sbc310.dts
index 8e4efff3bda1..fc3a331dd392 100644
--- a/arch/powerpc/boot/dts/gef_sbc310.dts
+++ b/arch/powerpc/boot/dts/gef_sbc310.dts
@@ -1,7 +1,7 @@
 /*
- * GE Fanuc SBC310 Device Tree Source
+ * GE SBC310 Device Tree Source
  *
- * Copyright 2008 GE Fanuc Intelligent Platforms Embedded Systems, Inc.
+ * Copyright 2008 GE Intelligent Platforms Embedded Systems, Inc.
  *
  * 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
diff --git a/arch/powerpc/boot/dts/gef_sbc610.dts b/arch/powerpc/boot/dts/gef_sbc610.dts
index bb7060078fb4..c0671cc98125 100644
--- a/arch/powerpc/boot/dts/gef_sbc610.dts
+++ b/arch/powerpc/boot/dts/gef_sbc610.dts
@@ -1,7 +1,7 @@
 /*
- * GE Fanuc SBC610 Device Tree Source
+ * GE SBC610 Device Tree Source
  *
- * Copyright 2008 GE Fanuc Intelligent Platforms Embedded Systems, Inc.
+ * Copyright 2008 GE Intelligent Platforms Embedded Systems, Inc.
  *
  * 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
diff --git a/arch/powerpc/include/asm/perf_event.h b/arch/powerpc/include/asm/perf_event.h
index 3288ce3997e0..e6d4ce69b126 100644
--- a/arch/powerpc/include/asm/perf_event.h
+++ b/arch/powerpc/include/asm/perf_event.h
@@ -1,110 +1,23 @@
 /*
- * Performance event support - PowerPC-specific definitions.
+ * Performance event support - hardware-specific disambiguation
  *
- * Copyright 2008-2009 Paul Mackerras, IBM Corporation.
+ * For now this is a compile-time decision, but eventually it should be
+ * runtime.  This would allow multiplatform perf event support for e300 (fsl
+ * embedded perf counters) plus server/classic, and would accommodate
+ * devices other than the core which provide their own performance counters.
+ *
+ * Copyright 2010 Freescale Semiconductor, Inc.
  *
  * 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 <linux/types.h>
-
-#include <asm/hw_irq.h>
-
-#define MAX_HWEVENTS            8
-#define MAX_EVENT_ALTERNATIVES  8
-#define MAX_LIMITED_HWCOUNTERS  2
-
-/*
- * This struct provides the constants and functions needed to
- * describe the PMU on a particular POWER-family CPU.
- */
-struct power_pmu {
-        const char      *name;
-        int             n_counter;
-        int             max_alternatives;
-        unsigned long   add_fields;
-        unsigned long   test_adder;
-        int             (*compute_mmcr)(u64 events[], int n_ev,
-                                unsigned int hwc[], unsigned long mmcr[]);
-        int             (*get_constraint)(u64 event_id, unsigned long *mskp,
-                                unsigned long *valp);
-        int             (*get_alternatives)(u64 event_id, unsigned int flags,
-                                u64 alt[]);
-        void            (*disable_pmc)(unsigned int pmc, unsigned long mmcr[]);
-        int             (*limited_pmc_event)(u64 event_id);
-        u32             flags;
-        int             n_generic;
-        int             *generic_events;
-        int             (*cache_events)[PERF_COUNT_HW_CACHE_MAX]
-                               [PERF_COUNT_HW_CACHE_OP_MAX]
-                               [PERF_COUNT_HW_CACHE_RESULT_MAX];
-};
-
-/*
- * Values for power_pmu.flags
- */
-#define PPMU_LIMITED_PMC5_6     1       /* PMC5/6 have limited function */
-#define PPMU_ALT_SIPR           2       /* uses alternate posn for SIPR/HV */
-
-/*
- * Values for flags to get_alternatives()
- */
-#define PPMU_LIMITED_PMC_OK     1       /* can put this on a limited PMC */
-#define PPMU_LIMITED_PMC_REQD   2       /* have to put this on a limited PMC */
-#define PPMU_ONLY_COUNT_RUN     4       /* only counting in run state */
-
-extern int register_power_pmu(struct power_pmu *);
 
-struct pt_regs;
-extern unsigned long perf_misc_flags(struct pt_regs *regs);
-extern unsigned long perf_instruction_pointer(struct pt_regs *regs);
-
-#define PERF_EVENT_INDEX_OFFSET 1
-
-/*
- * Only override the default definitions in include/linux/perf_event.h
- * if we have hardware PMU support.
- */
 #ifdef CONFIG_PPC_PERF_CTRS
-#define perf_misc_flags(regs)   perf_misc_flags(regs)
+#include <asm/perf_event_server.h>
 #endif
 
-/*
- * The power_pmu.get_constraint function returns a 32/64-bit value and
- * a 32/64-bit mask that express the constraints between this event_id and
- * other events.
- *
- * The value and mask are divided up into (non-overlapping) bitfields
- * of three different types:
- *
- * Select field: this expresses the constraint that some set of bits
- * in MMCR* needs to be set to a specific value for this event_id.  For a
- * select field, the mask contains 1s in every bit of the field, and
- * the value contains a unique value for each possible setting of the
- * MMCR* bits.  The constraint checking code will ensure that two events
- * that set the same field in their masks have the same value in their
- * value dwords.
- *
- * Add field: this expresses the constraint that there can be at most
- * N events in a particular class.  A field of k bits can be used for
- * N <= 2^(k-1) - 1.  The mask has the most significant bit of the field
- * set (and the other bits 0), and the value has only the least significant
- * bit of the field set.  In addition, the 'add_fields' and 'test_adder'
- * in the struct power_pmu for this processor come into play.  The
- * add_fields value contains 1 in the LSB of the field, and the
- * test_adder contains 2^(k-1) - 1 - N in the field.
- *
- * NAND field: this expresses the constraint that you may not have events
- * in all of a set of classes.  (For example, on PPC970, you can't select
- * events from the FPU, ISU and IDU simultaneously, although any two are
- * possible.)  For N classes, the field is N+1 bits wide, and each class
- * is assigned one bit from the least-significant N bits.  The mask has
- * only the most-significant bit set, and the value has only the bit
- * for the event_id's class set.  The test_adder has the least significant
- * bit set in the field.
- *
- * If an event_id is not subject to the constraint expressed by a particular
- * field, then it will have 0 in both the mask and value for that field.
- */
+#ifdef CONFIG_FSL_EMB_PERF_EVENT
+#include <asm/perf_event_fsl_emb.h>
+#endif
diff --git a/arch/powerpc/include/asm/perf_event_fsl_emb.h b/arch/powerpc/include/asm/perf_event_fsl_emb.h
new file mode 100644
index 000000000000..718a9fa94e68
--- /dev/null
+++ b/arch/powerpc/include/asm/perf_event_fsl_emb.h
@@ -0,0 +1,50 @@
+/*
+ * Performance event support - Freescale embedded specific definitions.
+ *
+ * Copyright 2008-2009 Paul Mackerras, IBM Corporation.
+ * Copyright 2010 Freescale Semiconductor, Inc.
+ *
+ * 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 <linux/types.h>
+#include <asm/hw_irq.h>
+
+#define MAX_HWEVENTS 4
+
+/* event flags */
+#define FSL_EMB_EVENT_VALID      1
+#define FSL_EMB_EVENT_RESTRICTED 2
+
+/* upper half of event flags is PMLCb */
+#define FSL_EMB_EVENT_THRESHMUL  0x0000070000000000ULL
+#define FSL_EMB_EVENT_THRESH     0x0000003f00000000ULL
+
+struct fsl_emb_pmu {
+        const char      *name;
+        int             n_counter; /* total number of counters */
+
+        /*
+         * The number of contiguous counters starting at zero that
+         * can hold restricted events, or zero if there are no
+         * restricted events.
+         *
+         * This isn't a very flexible method of expressing constraints,
+         * but it's very simple and is adequate for existing chips.
+         */
+        int             n_restricted;
+
+        /* Returns event flags and PMLCb (FSL_EMB_EVENT_*) */
+        u64             (*xlate_event)(u64 event_id);
+
+        int             n_generic;
+        int             *generic_events;
+        int             (*cache_events)[PERF_COUNT_HW_CACHE_MAX]
+                               [PERF_COUNT_HW_CACHE_OP_MAX]
+                               [PERF_COUNT_HW_CACHE_RESULT_MAX];
+};
+
+int register_fsl_emb_pmu(struct fsl_emb_pmu *);
diff --git a/arch/powerpc/include/asm/perf_event_server.h b/arch/powerpc/include/asm/perf_event_server.h
new file mode 100644
index 000000000000..8f1df1208d23
--- /dev/null
+++ b/arch/powerpc/include/asm/perf_event_server.h
@@ -0,0 +1,110 @@
+/*
+ * Performance event support - PowerPC classic/server specific definitions.
+ *
+ * Copyright 2008-2009 Paul Mackerras, IBM Corporation.
+ *
+ * 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 <linux/types.h>
+#include <asm/hw_irq.h>
+
+#define MAX_HWEVENTS            8
+#define MAX_EVENT_ALTERNATIVES  8
+#define MAX_LIMITED_HWCOUNTERS  2
+
+/*
+ * This struct provides the constants and functions needed to
+ * describe the PMU on a particular POWER-family CPU.
+ */
+struct power_pmu {
+        const char      *name;
+        int             n_counter;
+        int             max_alternatives;
+        unsigned long   add_fields;
+        unsigned long   test_adder;
+        int             (*compute_mmcr)(u64 events[], int n_ev,
+                                unsigned int hwc[], unsigned long mmcr[]);
+        int             (*get_constraint)(u64 event_id, unsigned long *mskp,
+                                unsigned long *valp);
+        int             (*get_alternatives)(u64 event_id, unsigned int flags,
+                                u64 alt[]);
+        void            (*disable_pmc)(unsigned int pmc, unsigned long mmcr[]);
+        int             (*limited_pmc_event)(u64 event_id);
+        u32             flags;
+        int             n_generic;
+        int             *generic_events;
+        int             (*cache_events)[PERF_COUNT_HW_CACHE_MAX]
+                               [PERF_COUNT_HW_CACHE_OP_MAX]
+                               [PERF_COUNT_HW_CACHE_RESULT_MAX];
+};
+
+/*
+ * Values for power_pmu.flags
+ */
+#define PPMU_LIMITED_PMC5_6     1       /* PMC5/6 have limited function */
+#define PPMU_ALT_SIPR           2       /* uses alternate posn for SIPR/HV */
+
+/*
+ * Values for flags to get_alternatives()
+ */
+#define PPMU_LIMITED_PMC_OK     1       /* can put this on a limited PMC */
+#define PPMU_LIMITED_PMC_REQD   2       /* have to put this on a limited PMC */
+#define PPMU_ONLY_COUNT_RUN     4       /* only counting in run state */
+
+extern int register_power_pmu(struct power_pmu *);
+
+struct pt_regs;
+extern unsigned long perf_misc_flags(struct pt_regs *regs);
+extern unsigned long perf_instruction_pointer(struct pt_regs *regs);
+
+#define PERF_EVENT_INDEX_OFFSET 1
+
+/*
+ * Only override the default definitions in include/linux/perf_event.h
+ * if we have hardware PMU support.
+ */
+#ifdef CONFIG_PPC_PERF_CTRS
+#define perf_misc_flags(regs)   perf_misc_flags(regs)
+#endif
+
+/*
+ * The power_pmu.get_constraint function returns a 32/64-bit value and
+ * a 32/64-bit mask that express the constraints between this event_id and
+ * other events.
+ *
+ * The value and mask are divided up into (non-overlapping) bitfields
+ * of three different types:
+ *
+ * Select field: this expresses the constraint that some set of bits
+ * in MMCR* needs to be set to a specific value for this event_id.  For a
+ * select field, the mask contains 1s in every bit of the field, and
+ * the value contains a unique value for each possible setting of the
+ * MMCR* bits.  The constraint checking code will ensure that two events
+ * that set the same field in their masks have the same value in their
+ * value dwords.
+ *
+ * Add field: this expresses the constraint that there can be at most
+ * N events in a particular class.  A field of k bits can be used for
+ * N <= 2^(k-1) - 1.  The mask has the most significant bit of the field
+ * set (and the other bits 0), and the value has only the least significant
+ * bit of the field set.  In addition, the 'add_fields' and 'test_adder'
+ * in the struct power_pmu for this processor come into play.  The
+ * add_fields value contains 1 in the LSB of the field, and the
+ * test_adder contains 2^(k-1) - 1 - N in the field.
+ *
+ * NAND field: this expresses the constraint that you may not have events
+ * in all of a set of classes.  (For example, on PPC970, you can't select
+ * events from the FPU, ISU and IDU simultaneously, although any two are
+ * possible.)  For N classes, the field is N+1 bits wide, and each class
+ * is assigned one bit from the least-significant N bits.  The mask has
+ * only the most-significant bit set, and the value has only the bit
+ * for the event_id's class set.  The test_adder has the least significant
+ * bit set in the field.
+ *
+ * If an event_id is not subject to the constraint expressed by a particular
+ * field, then it will have 0 in both the mask and value for that field.
+ */
diff --git a/arch/powerpc/include/asm/reg_fsl_emb.h b/arch/powerpc/include/asm/reg_fsl_emb.h
index 0de404dfee8b..77bb71cfd991 100644
--- a/arch/powerpc/include/asm/reg_fsl_emb.h
+++ b/arch/powerpc/include/asm/reg_fsl_emb.h
@@ -31,7 +31,7 @@
 #define PMLCA_FCM0      0x08000000      /* Freeze when PMM==0 */
 #define PMLCA_CE        0x04000000      /* Condition Enable */
 
-#define PMLCA_EVENT_MASK 0x007f0000     /* Event field */
+#define PMLCA_EVENT_MASK 0x00ff0000     /* Event field */
 #define PMLCA_EVENT_SHIFT       16
 
 #define PMRN_PMLCB0     0x110   /* PM Local Control B0 */
diff --git a/arch/powerpc/kernel/Makefile b/arch/powerpc/kernel/Makefile
index c002b0410219..877326320e74 100644
--- a/arch/powerpc/kernel/Makefile
+++ b/arch/powerpc/kernel/Makefile
@@ -98,11 +98,16 @@ obj64-$(CONFIG_AUDIT)		+= compat_audit.o
 
 obj-$(CONFIG_DYNAMIC_FTRACE)    += ftrace.o
 obj-$(CONFIG_FUNCTION_GRAPH_TRACER)     += ftrace.o
-obj-$(CONFIG_PPC_PERF_CTRS)     += perf_event.o perf_callchain.o
+obj-$(CONFIG_PERF_EVENTS)       += perf_callchain.o
+
+obj-$(CONFIG_PPC_PERF_CTRS)     += perf_event.o
 obj64-$(CONFIG_PPC_PERF_CTRS)   += power4-pmu.o ppc970-pmu.o power5-pmu.o \
                                    power5+-pmu.o power6-pmu.o power7-pmu.o
 obj32-$(CONFIG_PPC_PERF_CTRS)   += mpc7450-pmu.o
 
+obj-$(CONFIG_FSL_EMB_PERF_EVENT) += perf_event_fsl_emb.o
+obj-$(CONFIG_FSL_EMB_PERF_EVENT_E500) += e500-pmu.o
+
 obj-$(CONFIG_8XX_MINIMAL_FPEMU) += softemu8xx.o
 
 ifneq ($(CONFIG_PPC_INDIRECT_IO),y)
diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c
index 2fc82bac3bbc..8af4949434b2 100644
--- a/arch/powerpc/kernel/cputable.c
+++ b/arch/powerpc/kernel/cputable.c
@@ -1808,7 +1808,7 @@ static struct cpu_spec __initdata cpu_specs[] = {
                 .icache_bsize           = 64,
                 .dcache_bsize           = 64,
                 .num_pmcs               = 4,
-                .oprofile_cpu_type      = "ppc/e500", /* xxx - galak, e500mc? */
+                .oprofile_cpu_type      = "ppc/e500mc",
                 .oprofile_type          = PPC_OPROFILE_FSL_EMB,
                 .cpu_setup              = __setup_cpu_e500mc,
                 .machine_check          = machine_check_e500,
diff --git a/arch/powerpc/kernel/e500-pmu.c b/arch/powerpc/kernel/e500-pmu.c
new file mode 100644
index 000000000000..7c07de0d8943
--- /dev/null
+++ b/arch/powerpc/kernel/e500-pmu.c
@@ -0,0 +1,129 @@
+/*
+ * Performance counter support for e500 family processors.
+ *
+ * Copyright 2008-2009 Paul Mackerras, IBM Corporation.
+ * Copyright 2010 Freescale Semiconductor, Inc.
+ *
+ * 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 <linux/string.h>
+#include <linux/perf_event.h>
+#include <asm/reg.h>
+#include <asm/cputable.h>
+
+/*
+ * Map of generic hardware event types to hardware events
+ * Zero if unsupported
+ */
+static int e500_generic_events[] = {
+        [PERF_COUNT_HW_CPU_CYCLES] = 1,
+        [PERF_COUNT_HW_INSTRUCTIONS] = 2,
+        [PERF_COUNT_HW_CACHE_MISSES] = 41, /* Data L1 cache reloads */
+        [PERF_COUNT_HW_BRANCH_INSTRUCTIONS] = 12,
+        [PERF_COUNT_HW_BRANCH_MISSES] = 15,
+};
+
+#define C(x)    PERF_COUNT_HW_CACHE_##x
+
+/*
+ * Table of generalized cache-related events.
+ * 0 means not supported, -1 means nonsensical, other values
+ * are event codes.
+ */
+static int e500_cache_events[C(MAX)][C(OP_MAX)][C(RESULT_MAX)] = {
+        /*
+         * D-cache misses are not split into read/write/prefetch;
+         * use raw event 41.
+         */
+        [C(L1D)] = {            /*      RESULT_ACCESS   RESULT_MISS */
+                [C(OP_READ)] = {        27,             0       },
+                [C(OP_WRITE)] = {       28,             0       },
+                [C(OP_PREFETCH)] = {    29,             0       },
+        },
+        [C(L1I)] = {            /*      RESULT_ACCESS   RESULT_MISS */
+                [C(OP_READ)] = {        2,              60      },
+                [C(OP_WRITE)] = {       -1,             -1      },
+                [C(OP_PREFETCH)] = {    0,              0       },
+        },
+        /*
+         * Assuming LL means L2, it's not a good match for this model.
+         * It allocates only on L1 castout or explicit prefetch, and
+         * does not have separate read/write events (but it does have
+         * separate instruction/data events).
+         */
+        [C(LL)] = {             /*      RESULT_ACCESS   RESULT_MISS */
+                [C(OP_READ)] = {        0,              0       },
+                [C(OP_WRITE)] = {       0,              0       },
+                [C(OP_PREFETCH)] = {    0,              0       },
+        },
+        /*
+         * There are data/instruction MMU misses, but that's a miss on
+         * the chip's internal level-one TLB which is probably not
+         * what the user wants.  Instead, unified level-two TLB misses
+         * are reported here.
+         */
+        [C(DTLB)] = {           /*      RESULT_ACCESS   RESULT_MISS */
+                [C(OP_READ)] = {        26,             66      },
+                [C(OP_WRITE)] = {       -1,             -1      },
+                [C(OP_PREFETCH)] = {    -1,             -1      },
+        },
+        [C(BPU)] = {            /*      RESULT_ACCESS   RESULT_MISS */
+                [C(OP_READ)] = {        12,             15      },
+                [C(OP_WRITE)] = {       -1,             -1      },
+                [C(OP_PREFETCH)] = {    -1,             -1      },
+        },
+};
+
+static int num_events = 128;
+
+/* Upper half of event id is PMLCb, for threshold events */
+static u64 e500_xlate_event(u64 event_id)
+{
+        u32 event_low = (u32)event_id;
+        u64 ret;
+
+        if (event_low >= num_events)
+                return 0;
+
+        ret = FSL_EMB_EVENT_VALID;
+
+        if (event_low >= 76 && event_low <= 81) {
+                ret |= FSL_EMB_EVENT_RESTRICTED;
+                ret |= event_id &
+                       (FSL_EMB_EVENT_THRESHMUL | FSL_EMB_EVENT_THRESH);
+        } else if (event_id &
+                   (FSL_EMB_EVENT_THRESHMUL | FSL_EMB_EVENT_THRESH)) {
+                /* Threshold requested on non-threshold event */
+                return 0;
+        }
+
+        return ret;
+}
+
+static struct fsl_emb_pmu e500_pmu = {
+        .name                   = "e500 family",
+        .n_counter              = 4,
+        .n_restricted           = 2,
+        .xlate_event            = e500_xlate_event,
+        .n_generic              = ARRAY_SIZE(e500_generic_events),
+        .generic_events         = e500_generic_events,
+        .cache_events           = &e500_cache_events,
+};
+
+static int init_e500_pmu(void)
+{
+        if (!cur_cpu_spec->oprofile_cpu_type)
+                return -ENODEV;
+
+        if (!strcmp(cur_cpu_spec->oprofile_cpu_type, "ppc/e500mc"))
+                num_events = 256;
+        else if (strcmp(cur_cpu_spec->oprofile_cpu_type, "ppc/e500"))
+                return -ENODEV;
+
+        return register_fsl_emb_pmu(&e500_pmu);
+}
+
+arch_initcall(init_e500_pmu);
diff --git a/arch/powerpc/kernel/perf_event_fsl_emb.c b/arch/powerpc/kernel/perf_event_fsl_emb.c
new file mode 100644
index 000000000000..369872f6cf78
--- /dev/null
+++ b/arch/powerpc/kernel/perf_event_fsl_emb.c
@@ -0,0 +1,654 @@
+/*
+ * Performance event support - Freescale Embedded Performance Monitor
+ *
+ * Copyright 2008-2009 Paul Mackerras, IBM Corporation.
+ * Copyright 2010 Freescale Semiconductor, Inc.
+ *
+ * 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 <linux/kernel.h>
+#include <linux/sched.h>
+#include <linux/perf_event.h>
+#include <linux/percpu.h>
+#include <linux/hardirq.h>
+#include <asm/reg_fsl_emb.h>
+#include <asm/pmc.h>
+#include <asm/machdep.h>
+#include <asm/firmware.h>
+#include <asm/ptrace.h>
+
+struct cpu_hw_events {
+        int n_events;
+        int disabled;
+        u8  pmcs_enabled;
+        struct perf_event *event[MAX_HWEVENTS];
+};
+static DEFINE_PER_CPU(struct cpu_hw_events, cpu_hw_events);
+
+static struct fsl_emb_pmu *ppmu;
+
+/* Number of perf_events counting hardware events */
+static atomic_t num_events;
+/* Used to avoid races in calling reserve/release_pmc_hardware */
+static DEFINE_MUTEX(pmc_reserve_mutex);
+
+/*
+ * If interrupts were soft-disabled when a PMU interrupt occurs, treat
+ * it as an NMI.
+ */
+static inline int perf_intr_is_nmi(struct pt_regs *regs)
+{
+#ifdef __powerpc64__
+        return !regs->softe;
+#else
+        return 0;
+#endif
+}
+
+static void perf_event_interrupt(struct pt_regs *regs);
+
+/*
+ * Read one performance monitor counter (PMC).
+ */
+static unsigned long read_pmc(int idx)
+{
+        unsigned long val;
+
+        switch (idx) {
+        case 0:
+                val = mfpmr(PMRN_PMC0);
+                break;
+        case 1:
+                val = mfpmr(PMRN_PMC1);
+                break;
+        case 2:
+                val = mfpmr(PMRN_PMC2);
+                break;
+        case 3:
+                val = mfpmr(PMRN_PMC3);
+                break;
+        default:
+                printk(KERN_ERR "oops trying to read PMC%d\n", idx);
+                val = 0;
+        }
+        return val;
+}
+
+/*
+ * Write one PMC.
+ */
+static void write_pmc(int idx, unsigned long val)
+{
+        switch (idx) {
+        case 0:
+                mtpmr(PMRN_PMC0, val);
+                break;
+        case 1:
+                mtpmr(PMRN_PMC1, val);
+                break;
+        case 2:
+                mtpmr(PMRN_PMC2, val);
+                break;
+        case 3:
+                mtpmr(PMRN_PMC3, val);
+                break;
+        default:
+                printk(KERN_ERR "oops trying to write PMC%d\n", idx);
+        }
+
+        isync();
+}
+
+/*
+ * Write one local control A register
+ */
+static void write_pmlca(int idx, unsigned long val)
+{
+        switch (idx) {
+        case 0:
+                mtpmr(PMRN_PMLCA0, val);
+                break;
+        case 1:
+                mtpmr(PMRN_PMLCA1, val);
+                break;
+        case 2:
+                mtpmr(PMRN_PMLCA2, val);
+                break;
+        case 3:
+                mtpmr(PMRN_PMLCA3, val);
+                break;
+        default:
+                printk(KERN_ERR "oops trying to write PMLCA%d\n", idx);
+        }
+
+        isync();
+}
+
+/*
+ * Write one local control B register
+ */
+static void write_pmlcb(int idx, unsigned long val)
+{
+        switch (idx) {
+        case 0:
+                mtpmr(PMRN_PMLCB0, val);
+                break;
+        case 1:
+                mtpmr(PMRN_PMLCB1, val);
+                break;
+        case 2:
+                mtpmr(PMRN_PMLCB2, val);
+                break;
+        case 3:
+                mtpmr(PMRN_PMLCB3, val);
+                break;
+        default:
+                printk(KERN_ERR "oops trying to write PMLCB%d\n", idx);
+        }
+
+        isync();
+}
+
+static void fsl_emb_pmu_read(struct perf_event *event)
+{
+        s64 val, delta, prev;
+
+        /*
+         * Performance monitor interrupts come even when interrupts
+         * are soft-disabled, as long as interrupts are hard-enabled.
+         * Therefore we treat them like NMIs.
+         */
+        do {
+                prev = atomic64_read(&event->hw.prev_count);
+                barrier();
+                val = read_pmc(event->hw.idx);
+        } while (atomic64_cmpxchg(&event->hw.prev_count, prev, val) != prev);
+
+        /* The counters are only 32 bits wide */
+        delta = (val - prev) & 0xfffffffful;
+        atomic64_add(delta, &event->count);
+        atomic64_sub(delta, &event->hw.period_left);
+}
+
+/*
+ * Disable all events to prevent PMU interrupts and to allow
+ * events to be added or removed.
+ */
+void hw_perf_disable(void)
+{
+        struct cpu_hw_events *cpuhw;
+        unsigned long flags;
+
+        local_irq_save(flags);
+        cpuhw = &__get_cpu_var(cpu_hw_events);
+
+        if (!cpuhw->disabled) {
+                cpuhw->disabled = 1;
+
+                /*
+                 * Check if we ever enabled the PMU on this cpu.
+                 */
+                if (!cpuhw->pmcs_enabled) {
+                        ppc_enable_pmcs();
+                        cpuhw->pmcs_enabled = 1;
+                }
+
+                if (atomic_read(&num_events)) {
+                        /*
+                         * Set the 'freeze all counters' bit, and disable
+                         * interrupts.  The barrier is to make sure the
+                         * mtpmr has been executed and the PMU has frozen
+                         * the events before we return.
+                         */
+
+                        mtpmr(PMRN_PMGC0, PMGC0_FAC);
+                        isync();
+                }
+        }
+        local_irq_restore(flags);
+}
+
+/*
+ * Re-enable all events if disable == 0.
+ * If we were previously disabled and events were added, then
+ * put the new config on the PMU.
+ */
+void hw_perf_enable(void)
+{
+        struct cpu_hw_events *cpuhw;
+        unsigned long flags;
+
+        local_irq_save(flags);
+        cpuhw = &__get_cpu_var(cpu_hw_events);
+        if (!cpuhw->disabled)
+                goto out;
+
+        cpuhw->disabled = 0;
+        ppc_set_pmu_inuse(cpuhw->n_events != 0);
+
+        if (cpuhw->n_events > 0) {
+                mtpmr(PMRN_PMGC0, PMGC0_PMIE | PMGC0_FCECE);
+                isync();
+        }
+
+ out:
+        local_irq_restore(flags);
+}
+
+static int collect_events(struct perf_event *group, int max_count,
+                          struct perf_event *ctrs[])
+{
+        int n = 0;
+        struct perf_event *event;
+
+        if (!is_software_event(group)) {
+                if (n >= max_count)
+                        return -1;
+                ctrs[n] = group;
+                n++;
+        }
+        list_for_each_entry(event, &group->sibling_list, group_entry) {
+                if (!is_software_event(event) &&
+                    event->state != PERF_EVENT_STATE_OFF) {
+                        if (n >= max_count)
+                                return -1;
+                        ctrs[n] = event;
+                        n++;
+                }
+        }
+        return n;
+}
+
+/* perf must be disabled, context locked on entry */
+static int fsl_emb_pmu_enable(struct perf_event *event)
+{
+        struct cpu_hw_events *cpuhw;
+        int ret = -EAGAIN;
+        int num_counters = ppmu->n_counter;
+        u64 val;
+        int i;
+
+        cpuhw = &get_cpu_var(cpu_hw_events);
+
+        if (event->hw.config & FSL_EMB_EVENT_RESTRICTED)
+                num_counters = ppmu->n_restricted;
+
+        /*
+         * Allocate counters from top-down, so that restricted-capable
+         * counters are kept free as long as possible.
+         */
+        for (i = num_counters - 1; i >= 0; i--) {
+                if (cpuhw->event[i])
+                        continue;
+
+                break;
+        }
+
+        if (i < 0)
+                goto out;
+
+        event->hw.idx = i;
+        cpuhw->event[i] = event;
+        ++cpuhw->n_events;
+
+        val = 0;
+        if (event->hw.sample_period) {
+                s64 left = atomic64_read(&event->hw.period_left);
+                if (left < 0x80000000L)
+                        val = 0x80000000L - left;
+        }
+        atomic64_set(&event->hw.prev_count, val);
+        write_pmc(i, val);
+        perf_event_update_userpage(event);
+
+        write_pmlcb(i, event->hw.config >> 32);
+        write_pmlca(i, event->hw.config_base);
+
+        ret = 0;
+ out:
+        put_cpu_var(cpu_hw_events);
+        return ret;
+}
+
+/* perf must be disabled, context locked on entry */
+static void fsl_emb_pmu_disable(struct perf_event *event)
+{
+        struct cpu_hw_events *cpuhw;
+        int i = event->hw.idx;
+
+        if (i < 0)
+                goto out;
+
+        fsl_emb_pmu_read(event);
+
+        cpuhw = &get_cpu_var(cpu_hw_events);
+
+        WARN_ON(event != cpuhw->event[event->hw.idx]);
+
+        write_pmlca(i, 0);
+        write_pmlcb(i, 0);
+        write_pmc(i, 0);
+
+        cpuhw->event[i] = NULL;
+        event->hw.idx = -1;
+
+        /*
+         * TODO: if at least one restricted event exists, and we
+         * just freed up a non-restricted-capable counter, and
+         * there is a restricted-capable counter occupied by
+         * a non-restricted event, migrate that event to the
+         * vacated counter.
+         */
+
+        cpuhw->n_events--;
+
+ out:
+        put_cpu_var(cpu_hw_events);
+}
+
+/*
+ * Re-enable interrupts on a event after they were throttled
+ * because they were coming too fast.
+ *
+ * Context is locked on entry, but perf is not disabled.
+ */
+static void fsl_emb_pmu_unthrottle(struct perf_event *event)
+{
+        s64 val, left;
+        unsigned long flags;
+
+        if (event->hw.idx < 0 || !event->hw.sample_period)
+                return;
+        local_irq_save(flags);
+        perf_disable();
+        fsl_emb_pmu_read(event);
+        left = event->hw.sample_period;
+        event->hw.last_period = left;
+        val = 0;
+        if (left < 0x80000000L)
+                val = 0x80000000L - left;
+        write_pmc(event->hw.idx, val);
+        atomic64_set(&event->hw.prev_count, val);
+        atomic64_set(&event->hw.period_left, left);
+        perf_event_update_userpage(event);
+        perf_enable();
+        local_irq_restore(flags);
+}
+
+static struct pmu fsl_emb_pmu = {
+        .enable         = fsl_emb_pmu_enable,
+        .disable        = fsl_emb_pmu_disable,
+        .read           = fsl_emb_pmu_read,
+        .unthrottle     = fsl_emb_pmu_unthrottle,
+};
+
+/*
+ * Release the PMU if this is the last perf_event.
+ */
+static void hw_perf_event_destroy(struct perf_event *event)
+{
+        if (!atomic_add_unless(&num_events, -1, 1)) {
+                mutex_lock(&pmc_reserve_mutex);
+                if (atomic_dec_return(&num_events) == 0)
+                        release_pmc_hardware();
+                mutex_unlock(&pmc_reserve_mutex);
+        }
+}
+
+/*
+ * Translate a generic cache event_id config to a raw event_id code.
+ */
+static int hw_perf_cache_event(u64 config, u64 *eventp)
+{
+        unsigned long type, op, result;
+        int ev;
+
+        if (!ppmu->cache_events)
+                return -EINVAL;
+
+        /* unpack config */
+        type = config & 0xff;
+        op = (config >> 8) & 0xff;
+        result = (config >> 16) & 0xff;
+
+        if (type >= PERF_COUNT_HW_CACHE_MAX ||
+            op >= PERF_COUNT_HW_CACHE_OP_MAX ||
+            result >= PERF_COUNT_HW_CACHE_RESULT_MAX)
+                return -EINVAL;
+
+        ev = (*ppmu->cache_events)[type][op][result];
+        if (ev == 0)
+                return -EOPNOTSUPP;
+        if (ev == -1)
+                return -EINVAL;
+        *eventp = ev;
+        return 0;
+}
+
+const struct pmu *hw_perf_event_init(struct perf_event *event)
+{
+        u64 ev;
+        struct perf_event *events[MAX_HWEVENTS];
+        int n;
+        int err;
+        int num_restricted;
+        int i;
+
+        switch (event->attr.type) {
+        case PERF_TYPE_HARDWARE:
+                ev = event->attr.config;
+                if (ev >= ppmu->n_generic || ppmu->generic_events[ev] == 0)
+                        return ERR_PTR(-EOPNOTSUPP);
+                ev = ppmu->generic_events[ev];
+                break;
+
+        case PERF_TYPE_HW_CACHE:
+                err = hw_perf_cache_event(event->attr.config, &ev);
+                if (err)
+                        return ERR_PTR(err);
+                break;
+
+        case PERF_TYPE_RAW:
+                ev = event->attr.config;
+                break;
+
+        default:
+                return ERR_PTR(-EINVAL);
+        }
+
+        event->hw.config = ppmu->xlate_event(ev);
+        if (!(event->hw.config & FSL_EMB_EVENT_VALID))
+                return ERR_PTR(-EINVAL);
+
+        /*
+         * If this is in a group, check if it can go on with all the
+         * other hardware events in the group.  We assume the event
+         * hasn't been linked into its leader's sibling list at this point.
+         */
+        n = 0;
+        if (event->group_leader != event) {
+                n = collect_events(event->group_leader,
+                                   ppmu->n_counter - 1, events);
+                if (n < 0)
+                        return ERR_PTR(-EINVAL);
+        }
+
+        if (event->hw.config & FSL_EMB_EVENT_RESTRICTED) {
+                num_restricted = 0;
+                for (i = 0; i < n; i++) {
+                        if (events[i]->hw.config & FSL_EMB_EVENT_RESTRICTED)
+                                num_restricted++;
+                }
+
+                if (num_restricted >= ppmu->n_restricted)
+                        return ERR_PTR(-EINVAL);
+        }
+
+        event->hw.idx = -1;
+
+        event->hw.config_base = PMLCA_CE | PMLCA_FCM1 |
+                                (u32)((ev << 16) & PMLCA_EVENT_MASK);
+
+        if (event->attr.exclude_user)
+                event->hw.config_base |= PMLCA_FCU;
+        if (event->attr.exclude_kernel)
+                event->hw.config_base |= PMLCA_FCS;
+        if (event->attr.exclude_idle)
+                return ERR_PTR(-ENOTSUPP);
+
+        event->hw.last_period = event->hw.sample_period;
+        atomic64_set(&event->hw.period_left, event->hw.last_period);
+
+        /*
+         * See if we need to reserve the PMU.
+         * If no events are currently in use, then we have to take a
+         * mutex to ensure that we don't race with another task doing
+         * reserve_pmc_hardware or release_pmc_hardware.
+         */
+        err = 0;
+        if (!atomic_inc_not_zero(&num_events)) {
+                mutex_lock(&pmc_reserve_mutex);
+                if (atomic_read(&num_events) == 0 &&
+                    reserve_pmc_hardware(perf_event_interrupt))
+                        err = -EBUSY;
+                else
+                        atomic_inc(&num_events);
+                mutex_unlock(&pmc_reserve_mutex);
+
+                mtpmr(PMRN_PMGC0, PMGC0_FAC);
+                isync();
+        }
+        event->destroy = hw_perf_event_destroy;
+
+        if (err)
+                return ERR_PTR(err);
+        return &fsl_emb_pmu;
+}
+
+/*
+ * A counter has overflowed; update its count and record
+ * things if requested.  Note that interrupts are hard-disabled
+ * here so there is no possibility of being interrupted.
+ */
+static void record_and_restart(struct perf_event *event, unsigned long val,
+                               struct pt_regs *regs, int nmi)
+{
+        u64 period = event->hw.sample_period;
+        s64 prev, delta, left;
+        int record = 0;
+
+        /* we don't have to worry about interrupts here */
+        prev = atomic64_read(&event->hw.prev_count);
+        delta = (val - prev) & 0xfffffffful;
+        atomic64_add(delta, &event->count);
+
+        /*
+         * See if the total period for this event has expired,
+         * and update for the next period.
+         */
+        val = 0;
+        left = atomic64_read(&event->hw.period_left) - delta;
+        if (period) {
+                if (left <= 0) {
+                        left += period;
+                        if (left <= 0)
+                                left = period;
+                        record = 1;
+                }
+                if (left < 0x80000000LL)
+                        val = 0x80000000LL - left;
+        }
+
+        /*
+         * Finally record data if requested.
+         */
+        if (record) {
+                struct perf_sample_data data = {
+                        .period = event->hw.last_period,
+                };
+
+                if (perf_event_overflow(event, nmi, &data, regs)) {
+                        /*
+                         * Interrupts are coming too fast - throttle them
+                         * by setting the event to 0, so it will be
+                         * at least 2^30 cycles until the next interrupt
+                         * (assuming each event counts at most 2 counts
+                         * per cycle).
+                         */
+                        val = 0;
+                        left = ~0ULL >> 1;
+                }
+        }
+
+        write_pmc(event->hw.idx, val);
+        atomic64_set(&event->hw.prev_count, val);
+        atomic64_set(&event->hw.period_left, left);
+        perf_event_update_userpage(event);
+}
+
+static void perf_event_interrupt(struct pt_regs *regs)
+{
+        int i;
+        struct cpu_hw_events *cpuhw = &__get_cpu_var(cpu_hw_events);
+        struct perf_event *event;
+        unsigned long val;
+        int found = 0;
+        int nmi;
+
+        nmi = perf_intr_is_nmi(regs);
+        if (nmi)
+                nmi_enter();
+        else
+                irq_enter();
+
+        for (i = 0; i < ppmu->n_counter; ++i) {
+                event = cpuhw->event[i];
+
+                val = read_pmc(i);
+                if ((int)val < 0) {
+                        if (event) {
+                                /* event has overflowed */
+                                found = 1;
+                                record_and_restart(event, val, regs, nmi);
+                        } else {
+                                /*
+                                 * Disabled counter is negative,
+                                 * reset it just in case.
+                                 */
+                                write_pmc(i, 0);
+                        }
+                }
+        }
+
+        /* PMM will keep counters frozen until we return from the interrupt. */
+        mtmsr(mfmsr() | MSR_PMM);
+        mtpmr(PMRN_PMGC0, PMGC0_PMIE | PMGC0_FCECE);
+        isync();
+
+        if (nmi)
+                nmi_exit();
+        else
+                irq_exit();
+}
+
+void hw_perf_event_setup(int cpu)
+{
+        struct cpu_hw_events *cpuhw = &per_cpu(cpu_hw_events, cpu);
+
+        memset(cpuhw, 0, sizeof(*cpuhw));
+}
+
+int register_fsl_emb_pmu(struct fsl_emb_pmu *pmu)
+{
+        if (ppmu)
+                return -EBUSY;          /* something's already registered */
+
+        ppmu = pmu;
+        pr_info("%s performance monitor hardware support registered\n",
+                pmu->name);
+
+        return 0;
+}
diff --git a/arch/powerpc/platforms/82xx/pq2ads-pci-pic.c b/arch/powerpc/platforms/82xx/pq2ads-pci-pic.c
index 9d962d7c72c1..d4a09f8705b5 100644
--- a/arch/powerpc/platforms/82xx/pq2ads-pci-pic.c
+++ b/arch/powerpc/platforms/82xx/pq2ads-pci-pic.c
@@ -24,7 +24,7 @@
 
 #include "pq2.h"
 
-static DEFINE_SPINLOCK(pci_pic_lock);
+static DEFINE_RAW_SPINLOCK(pci_pic_lock);
 
 struct pq2ads_pci_pic {
         struct device_node *node;
@@ -45,12 +45,12 @@ static void pq2ads_pci_mask_irq(unsigned int virq)
 
         if (irq != -1) {
                 unsigned long flags;
-                spin_lock_irqsave(&pci_pic_lock, flags);
+                raw_spin_lock_irqsave(&pci_pic_lock, flags);
 
                 setbits32(&priv->regs->mask, 1 << irq);
                 mb();
 
-                spin_unlock_irqrestore(&pci_pic_lock, flags);
+                raw_spin_unlock_irqrestore(&pci_pic_lock, flags);
         }
 }
 
@@ -62,9 +62,9 @@ static void pq2ads_pci_unmask_irq(unsigned int virq)
         if (irq != -1) {
                 unsigned long flags;
 
-                spin_lock_irqsave(&pci_pic_lock, flags);
+                raw_spin_lock_irqsave(&pci_pic_lock, flags);
                 clrbits32(&priv->regs->mask, 1 << irq);
-                spin_unlock_irqrestore(&pci_pic_lock, flags);
+                raw_spin_unlock_irqrestore(&pci_pic_lock, flags);
         }
 }
 
diff --git a/arch/powerpc/platforms/85xx/socrates_fpga_pic.c b/arch/powerpc/platforms/85xx/socrates_fpga_pic.c
index 42e87f08aa01..d48527ffc425 100644
--- a/arch/powerpc/platforms/85xx/socrates_fpga_pic.c
+++ b/arch/powerpc/platforms/85xx/socrates_fpga_pic.c
@@ -50,7 +50,7 @@ static struct socrates_fpga_irq_info fpga_irqs[SOCRATES_FPGA_NUM_IRQS] = {
 
 #define socrates_fpga_irq_to_hw(virq)    ((unsigned int)irq_map[virq].hwirq)
 
-static DEFINE_SPINLOCK(socrates_fpga_pic_lock);
+static DEFINE_RAW_SPINLOCK(socrates_fpga_pic_lock);
 
 static void __iomem *socrates_fpga_pic_iobase;
 static struct irq_host *socrates_fpga_pic_irq_host;
@@ -80,9 +80,9 @@ static inline unsigned int socrates_fpga_pic_get_irq(unsigned int irq)
         if (i == 3)
                 return NO_IRQ;
 
-        spin_lock_irqsave(&socrates_fpga_pic_lock, flags);
+        raw_spin_lock_irqsave(&socrates_fpga_pic_lock, flags);
         cause = socrates_fpga_pic_read(FPGA_PIC_IRQMASK(i));
-        spin_unlock_irqrestore(&socrates_fpga_pic_lock, flags);
+        raw_spin_unlock_irqrestore(&socrates_fpga_pic_lock, flags);
         for (i = SOCRATES_FPGA_NUM_IRQS - 1; i >= 0; i--) {
                 if (cause >> (i + 16))
                         break;
@@ -116,12 +116,12 @@ static void socrates_fpga_pic_ack(unsigned int virq)
         hwirq = socrates_fpga_irq_to_hw(virq);
 
         irq_line = fpga_irqs[hwirq].irq_line;
-        spin_lock_irqsave(&socrates_fpga_pic_lock, flags);
+        raw_spin_lock_irqsave(&socrates_fpga_pic_lock, flags);
         mask = socrates_fpga_pic_read(FPGA_PIC_IRQMASK(irq_line))
                 & SOCRATES_FPGA_IRQ_MASK;
         mask |= (1 << (hwirq + 16));
         socrates_fpga_pic_write(FPGA_PIC_IRQMASK(irq_line), mask);
-        spin_unlock_irqrestore(&socrates_fpga_pic_lock, flags);
+        raw_spin_unlock_irqrestore(&socrates_fpga_pic_lock, flags);
 }
 
 static void socrates_fpga_pic_mask(unsigned int virq)
@@ -134,12 +134,12 @@ static void socrates_fpga_pic_mask(unsigned int virq)
         hwirq = socrates_fpga_irq_to_hw(virq);
 
         irq_line = fpga_irqs[hwirq].irq_line;
-        spin_lock_irqsave(&socrates_fpga_pic_lock, flags);
+        raw_spin_lock_irqsave(&socrates_fpga_pic_lock, flags);
         mask = socrates_fpga_pic_read(FPGA_PIC_IRQMASK(irq_line))
                 & SOCRATES_FPGA_IRQ_MASK;
         mask &= ~(1 << hwirq);
         socrates_fpga_pic_write(FPGA_PIC_IRQMASK(irq_line), mask);
-        spin_unlock_irqrestore(&socrates_fpga_pic_lock, flags);
+        raw_spin_unlock_irqrestore(&socrates_fpga_pic_lock, flags);
 }
 
 static void socrates_fpga_pic_mask_ack(unsigned int virq)
@@ -152,13 +152,13 @@ static void socrates_fpga_pic_mask_ack(unsigned int virq)
         hwirq = socrates_fpga_irq_to_hw(virq);
 
         irq_line = fpga_irqs[hwirq].irq_line;
-        spin_lock_irqsave(&socrates_fpga_pic_lock, flags);
+        raw_spin_lock_irqsave(&socrates_fpga_pic_lock, flags);
         mask = socrates_fpga_pic_read(FPGA_PIC_IRQMASK(irq_line))
                 & SOCRATES_FPGA_IRQ_MASK;
         mask &= ~(1 << hwirq);
         mask |= (1 << (hwirq + 16));
         socrates_fpga_pic_write(FPGA_PIC_IRQMASK(irq_line), mask);
-        spin_unlock_irqrestore(&socrates_fpga_pic_lock, flags);
+        raw_spin_unlock_irqrestore(&socrates_fpga_pic_lock, flags);
 }
 
 static void socrates_fpga_pic_unmask(unsigned int virq)
@@ -171,12 +171,12 @@ static void socrates_fpga_pic_unmask(unsigned int virq)
         hwirq = socrates_fpga_irq_to_hw(virq);
 
         irq_line = fpga_irqs[hwirq].irq_line;
-        spin_lock_irqsave(&socrates_fpga_pic_lock, flags);
+        raw_spin_lock_irqsave(&socrates_fpga_pic_lock, flags);
         mask = socrates_fpga_pic_read(FPGA_PIC_IRQMASK(irq_line))
                 & SOCRATES_FPGA_IRQ_MASK;
         mask |= (1 << hwirq);
         socrates_fpga_pic_write(FPGA_PIC_IRQMASK(irq_line), mask);
-        spin_unlock_irqrestore(&socrates_fpga_pic_lock, flags);
+        raw_spin_unlock_irqrestore(&socrates_fpga_pic_lock, flags);
 }
 
 static void socrates_fpga_pic_eoi(unsigned int virq)
@@ -189,12 +189,12 @@ static void socrates_fpga_pic_eoi(unsigned int virq)
         hwirq = socrates_fpga_irq_to_hw(virq);
 
         irq_line = fpga_irqs[hwirq].irq_line;
-        spin_lock_irqsave(&socrates_fpga_pic_lock, flags);
+        raw_spin_lock_irqsave(&socrates_fpga_pic_lock, flags);
         mask = socrates_fpga_pic_read(FPGA_PIC_IRQMASK(irq_line))
                 & SOCRATES_FPGA_IRQ_MASK;
         mask |= (1 << (hwirq + 16));
         socrates_fpga_pic_write(FPGA_PIC_IRQMASK(irq_line), mask);
-        spin_unlock_irqrestore(&socrates_fpga_pic_lock, flags);
+        raw_spin_unlock_irqrestore(&socrates_fpga_pic_lock, flags);
 }
 
 static int socrates_fpga_pic_set_type(unsigned int virq,
@@ -220,14 +220,14 @@ static int socrates_fpga_pic_set_type(unsigned int virq,
         default:
                 return -EINVAL;
         }
-        spin_lock_irqsave(&socrates_fpga_pic_lock, flags);
+        raw_spin_lock_irqsave(&socrates_fpga_pic_lock, flags);
         mask = socrates_fpga_pic_read(FPGA_PIC_IRQCFG);
         if (polarity)
                 mask |= (1 << hwirq);
         else
                 mask &= ~(1 << hwirq);
         socrates_fpga_pic_write(FPGA_PIC_IRQCFG, mask);
-        spin_unlock_irqrestore(&socrates_fpga_pic_lock, flags);
+        raw_spin_unlock_irqrestore(&socrates_fpga_pic_lock, flags);
         return 0;
 }
 
@@ -314,14 +314,14 @@ void socrates_fpga_pic_init(struct device_node *pic)
 
         socrates_fpga_pic_iobase = of_iomap(pic, 0);
 
-        spin_lock_irqsave(&socrates_fpga_pic_lock, flags);
+        raw_spin_lock_irqsave(&socrates_fpga_pic_lock, flags);
         socrates_fpga_pic_write(FPGA_PIC_IRQMASK(0),
                         SOCRATES_FPGA_IRQ_MASK << 16);
         socrates_fpga_pic_write(FPGA_PIC_IRQMASK(1),
                         SOCRATES_FPGA_IRQ_MASK << 16);
         socrates_fpga_pic_write(FPGA_PIC_IRQMASK(2),
                         SOCRATES_FPGA_IRQ_MASK << 16);
-        spin_unlock_irqrestore(&socrates_fpga_pic_lock, flags);
+        raw_spin_unlock_irqrestore(&socrates_fpga_pic_lock, flags);
 
         pr_info("FPGA PIC: Setting up Socrates FPGA PIC\n");
 }
diff --git a/arch/powerpc/platforms/86xx/Kconfig b/arch/powerpc/platforms/86xx/Kconfig
index 2bbfd530d6d8..fbe9f3621424 100644
--- a/arch/powerpc/platforms/86xx/Kconfig
+++ b/arch/powerpc/platforms/86xx/Kconfig
@@ -33,32 +33,32 @@ config MPC8610_HPCD
           This option enables support for the MPC8610 HPCD board.
 
 config GEF_PPC9A
-        bool "GE Fanuc PPC9A"
+        bool "GE PPC9A"
         select DEFAULT_UIMAGE
         select MMIO_NVRAM
         select GENERIC_GPIO
         select ARCH_REQUIRE_GPIOLIB
         help
-          This option enables support for GE Fanuc's PPC9A.
+          This option enables support for the GE PPC9A.
 
 config GEF_SBC310
-        bool "GE Fanuc SBC310"
+        bool "GE SBC310"
         select DEFAULT_UIMAGE
         select MMIO_NVRAM
         select GENERIC_GPIO
         select ARCH_REQUIRE_GPIOLIB
         help
-          This option enables support for GE Fanuc's SBC310.
+          This option enables support for the GE SBC310.
 
 config GEF_SBC610
-        bool "GE Fanuc SBC610"
+        bool "GE SBC610"
         select DEFAULT_UIMAGE
         select MMIO_NVRAM
         select GENERIC_GPIO
         select ARCH_REQUIRE_GPIOLIB
         select HAS_RAPIDIO
         help
-          This option enables support for GE Fanuc's SBC610.
+          This option enables support for the GE SBC610.
 
 endif
 
diff --git a/arch/powerpc/platforms/86xx/gef_gpio.c b/arch/powerpc/platforms/86xx/gef_gpio.c
index b2ea8875adba..11f7b2b6f49e 100644
--- a/arch/powerpc/platforms/86xx/gef_gpio.c
+++ b/arch/powerpc/platforms/86xx/gef_gpio.c
@@ -1,9 +1,9 @@
 /*
- * Driver for GE Fanuc's FPGA based GPIO pins
+ * Driver for GE FPGA based GPIO
  *
- * Author: Martyn Welch <martyn.welch@gefanuc.com>
+ * Author: Martyn Welch <martyn.welch@ge.com>
  *
- * 2008 (c) GE Fanuc Intelligent Platforms Embedded Systems, Inc.
+ * 2008 (c) GE Intelligent Platforms Embedded Systems, Inc.
  *
  * This file is licensed under the terms of the GNU General Public License
  * version 2.  This program is licensed "as is" without any warranty of any
@@ -164,6 +164,6 @@ static int __init gef_gpio_init(void)
 };
 arch_initcall(gef_gpio_init);
 
-MODULE_DESCRIPTION("GE Fanuc I/O FPGA GPIO driver");
-MODULE_AUTHOR("Martyn Welch <martyn.welch@gefanuc.com");
+MODULE_DESCRIPTION("GE I/O FPGA GPIO driver");
+MODULE_AUTHOR("Martyn Welch <martyn.welch@ge.com");
 MODULE_LICENSE("GPL");
diff --git a/arch/powerpc/platforms/86xx/gef_pic.c b/arch/powerpc/platforms/86xx/gef_pic.c
index 0110a8736d33..6df9e2561c06 100644
--- a/arch/powerpc/platforms/86xx/gef_pic.c
+++ b/arch/powerpc/platforms/86xx/gef_pic.c
@@ -1,9 +1,9 @@
 /*
- * Interrupt handling for GE Fanuc's FPGA based PIC
+ * Interrupt handling for GE FPGA based PIC
  *
- * Author: Martyn Welch <martyn.welch@gefanuc.com>
+ * Author: Martyn Welch <martyn.welch@ge.com>
  *
- * 2008 (c) GE Fanuc Intelligent Platforms Embedded Systems, Inc.
+ * 2008 (c) GE Intelligent Platforms Embedded Systems, Inc.
  *
  * This file is licensed under the terms of the GNU General Public License
  * version 2.  This program is licensed "as is" without any warranty of any
@@ -49,7 +49,7 @@
 #define gef_irq_to_hw(virq)    ((unsigned int)irq_map[virq].hwirq)
 
 
-static DEFINE_SPINLOCK(gef_pic_lock);
+static DEFINE_RAW_SPINLOCK(gef_pic_lock);
 
 static void __iomem *gef_pic_irq_reg_base;
 static struct irq_host *gef_pic_irq_host;
@@ -118,11 +118,11 @@ static void gef_pic_mask(unsigned int virq)
 
         hwirq = gef_irq_to_hw(virq);
 
-        spin_lock_irqsave(&gef_pic_lock, flags);
+        raw_spin_lock_irqsave(&gef_pic_lock, flags);
         mask = in_be32(gef_pic_irq_reg_base + GEF_PIC_INTR_MASK(0));
         mask &= ~(1 << hwirq);
         out_be32(gef_pic_irq_reg_base + GEF_PIC_INTR_MASK(0), mask);
-        spin_unlock_irqrestore(&gef_pic_lock, flags);
+        raw_spin_unlock_irqrestore(&gef_pic_lock, flags);
 }
 
 static void gef_pic_mask_ack(unsigned int virq)
@@ -141,11 +141,11 @@ static void gef_pic_unmask(unsigned int virq)
 
         hwirq = gef_irq_to_hw(virq);
 
-        spin_lock_irqsave(&gef_pic_lock, flags);
+        raw_spin_lock_irqsave(&gef_pic_lock, flags);
         mask = in_be32(gef_pic_irq_reg_base + GEF_PIC_INTR_MASK(0));
         mask |= (1 << hwirq);
         out_be32(gef_pic_irq_reg_base + GEF_PIC_INTR_MASK(0), mask);
-        spin_unlock_irqrestore(&gef_pic_lock, flags);
+        raw_spin_unlock_irqrestore(&gef_pic_lock, flags);
 }
 
 static struct irq_chip gef_pic_chip = {
@@ -199,7 +199,7 @@ void __init gef_pic_init(struct device_node *np)
         /* Map the devices registers into memory */
         gef_pic_irq_reg_base = of_iomap(np, 0);
 
-        spin_lock_irqsave(&gef_pic_lock, flags);
+        raw_spin_lock_irqsave(&gef_pic_lock, flags);
 
         /* Initialise everything as masked. */
         out_be32(gef_pic_irq_reg_base + GEF_PIC_CPU0_INTR_MASK, 0);
@@ -208,7 +208,7 @@ void __init gef_pic_init(struct device_node *np)
         out_be32(gef_pic_irq_reg_base + GEF_PIC_CPU0_MCP_MASK, 0);
         out_be32(gef_pic_irq_reg_base + GEF_PIC_CPU1_MCP_MASK, 0);
 
-        spin_unlock_irqrestore(&gef_pic_lock, flags);
+        raw_spin_unlock_irqrestore(&gef_pic_lock, flags);
 
         /* Map controller */
         gef_pic_cascade_irq = irq_of_parse_and_map(np, 0);
diff --git a/arch/powerpc/platforms/86xx/gef_ppc9a.c b/arch/powerpc/platforms/86xx/gef_ppc9a.c
index a792e5d85813..60ce07e39100 100644
--- a/arch/powerpc/platforms/86xx/gef_ppc9a.c
+++ b/arch/powerpc/platforms/86xx/gef_ppc9a.c
@@ -1,9 +1,9 @@
 /*
- * GE Fanuc PPC9A board support
+ * GE PPC9A board support
  *
- * Author: Martyn Welch <martyn.welch@gefanuc.com>
+ * Author: Martyn Welch <martyn.welch@ge.com>
  *
- * Copyright 2008 GE Fanuc Intelligent Platforms Embedded Systems, Inc.
+ * Copyright 2008 GE Intelligent Platforms Embedded Systems, Inc.
  *
  * 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
@@ -82,7 +82,7 @@ static void __init gef_ppc9a_setup_arch(void)
         }
 #endif
 
-        printk(KERN_INFO "GE Fanuc Intelligent Platforms PPC9A 6U VME SBC\n");
+        printk(KERN_INFO "GE Intelligent Platforms PPC9A 6U VME SBC\n");
 
 #ifdef CONFIG_SMP
         mpc86xx_smp_init();
@@ -151,7 +151,7 @@ static void gef_ppc9a_show_cpuinfo(struct seq_file *m)
 {
         uint svid = mfspr(SPRN_SVR);
 
-        seq_printf(m, "Vendor\t\t: GE Fanuc Intelligent Platforms\n");
+        seq_printf(m, "Vendor\t\t: GE Intelligent Platforms\n");
 
         seq_printf(m, "Revision\t: %u%c\n", gef_ppc9a_get_pcb_rev(),
                 ('A' + gef_ppc9a_get_board_rev()));
@@ -235,7 +235,7 @@ static int __init declare_of_platform_devices(void)
 machine_device_initcall(gef_ppc9a, declare_of_platform_devices);
 
 define_machine(gef_ppc9a) {
-        .name                   = "GE Fanuc PPC9A",
+        .name                   = "GE PPC9A",
         .probe                  = gef_ppc9a_probe,
         .setup_arch             = gef_ppc9a_setup_arch,
         .init_IRQ               = gef_ppc9a_init_irq,
diff --git a/arch/powerpc/platforms/86xx/gef_sbc310.c b/arch/powerpc/platforms/86xx/gef_sbc310.c
index 6a1a613836c2..3ecee25bf3ed 100644
--- a/arch/powerpc/platforms/86xx/gef_sbc310.c
+++ b/arch/powerpc/platforms/86xx/gef_sbc310.c
@@ -1,9 +1,9 @@
 /*
- * GE Fanuc SBC310 board support
+ * GE SBC310 board support
  *
- * Author: Martyn Welch <martyn.welch@gefanuc.com>
+ * Author: Martyn Welch <martyn.welch@ge.com>
  *
- * Copyright 2008 GE Fanuc Intelligent Platforms Embedded Systems, Inc.
+ * Copyright 2008 GE Intelligent Platforms Embedded Systems, Inc.
  *
  * 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
@@ -82,7 +82,7 @@ static void __init gef_sbc310_setup_arch(void)
         }
 #endif
 
-        printk(KERN_INFO "GE Fanuc Intelligent Platforms SBC310 6U VPX SBC\n");
+        printk(KERN_INFO "GE Intelligent Platforms SBC310 6U VPX SBC\n");
 
 #ifdef CONFIG_SMP
         mpc86xx_smp_init();
@@ -142,7 +142,7 @@ static void gef_sbc310_show_cpuinfo(struct seq_file *m)
 {
         uint svid = mfspr(SPRN_SVR);
 
-        seq_printf(m, "Vendor\t\t: GE Fanuc Intelligent Platforms\n");
+        seq_printf(m, "Vendor\t\t: GE Intelligent Platforms\n");
 
         seq_printf(m, "Board ID\t: 0x%2.2x\n", gef_sbc310_get_board_id());
         seq_printf(m, "Revision\t: %u%c\n", gef_sbc310_get_pcb_rev(),
@@ -223,7 +223,7 @@ static int __init declare_of_platform_devices(void)
 machine_device_initcall(gef_sbc310, declare_of_platform_devices);
 
 define_machine(gef_sbc310) {
-        .name                   = "GE Fanuc SBC310",
+        .name                   = "GE SBC310",
         .probe                  = gef_sbc310_probe,
         .setup_arch             = gef_sbc310_setup_arch,
         .init_IRQ               = gef_sbc310_init_irq,
diff --git a/arch/powerpc/platforms/86xx/gef_sbc610.c b/arch/powerpc/platforms/86xx/gef_sbc610.c
index e10688a0fc4e..5090d608d9ee 100644
--- a/arch/powerpc/platforms/86xx/gef_sbc610.c
+++ b/arch/powerpc/platforms/86xx/gef_sbc610.c
@@ -1,9 +1,9 @@
 /*
- * GE Fanuc SBC610 board support
+ * GE SBC610 board support
  *
- * Author: Martyn Welch <martyn.welch@gefanuc.com>
+ * Author: Martyn Welch <martyn.welch@ge.com>
  *
- * Copyright 2008 GE Fanuc Intelligent Platforms Embedded Systems, Inc.
+ * Copyright 2008 GE Intelligent Platforms Embedded Systems, Inc.
  *
  * 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
@@ -82,7 +82,7 @@ static void __init gef_sbc610_setup_arch(void)
         }
 #endif
 
-        printk(KERN_INFO "GE Fanuc Intelligent Platforms SBC610 6U VPX SBC\n");
+        printk(KERN_INFO "GE Intelligent Platforms SBC610 6U VPX SBC\n");
 
 #ifdef CONFIG_SMP
         mpc86xx_smp_init();
@@ -133,7 +133,7 @@ static void gef_sbc610_show_cpuinfo(struct seq_file *m)
 {
         uint svid = mfspr(SPRN_SVR);
 
-        seq_printf(m, "Vendor\t\t: GE Fanuc Intelligent Platforms\n");
+        seq_printf(m, "Vendor\t\t: GE Intelligent Platforms\n");
 
         seq_printf(m, "Revision\t: %u%c\n", gef_sbc610_get_pcb_rev(),
                 ('A' + gef_sbc610_get_board_rev() - 1));
@@ -212,7 +212,7 @@ static int __init declare_of_platform_devices(void)
 machine_device_initcall(gef_sbc610, declare_of_platform_devices);
 
 define_machine(gef_sbc610) {
-        .name                   = "GE Fanuc SBC610",
+        .name                   = "GE SBC610",
         .probe                  = gef_sbc610_probe,
         .setup_arch             = gef_sbc610_setup_arch,
         .init_IRQ               = gef_sbc610_init_irq,
diff --git a/arch/powerpc/platforms/Kconfig.cputype b/arch/powerpc/platforms/Kconfig.cputype
index fa0f690d3867..a8aae0b54579 100644
--- a/arch/powerpc/platforms/Kconfig.cputype
+++ b/arch/powerpc/platforms/Kconfig.cputype
@@ -144,6 +144,16 @@ config FSL_EMB_PERFMON
           and some e300 cores (c3 and c4).  Select this only if your
           core supports the Embedded Performance Monitor APU
 
+config FSL_EMB_PERF_EVENT
+        bool
+        depends on FSL_EMB_PERFMON && PERF_EVENTS && !PPC_PERF_CTRS
+        default y
+
+config FSL_EMB_PERF_EVENT_E500
+        bool
+        depends on FSL_EMB_PERF_EVENT && E500
+        default y
+
 config 4xx
         bool
         depends on 40x || 44x
diff --git a/arch/powerpc/sysdev/cpm2_pic.h b/arch/powerpc/sysdev/cpm2_pic.h
index 30e5828a2781..2c5f70c24485 100644
--- a/arch/powerpc/sysdev/cpm2_pic.h
+++ b/arch/powerpc/sysdev/cpm2_pic.h
@@ -3,6 +3,6 @@
 
 extern unsigned int cpm2_get_irq(void);
 
-extern void cpm2_pic_init(struct device_node*);
+extern void cpm2_pic_init(struct device_node *);
 
 #endif /* _PPC_KERNEL_CPM2_H */
diff --git a/arch/powerpc/sysdev/qe_lib/qe_ic.c b/arch/powerpc/sysdev/qe_lib/qe_ic.c
index d927da893ec4..541ba9863647 100644
--- a/arch/powerpc/sysdev/qe_lib/qe_ic.c
+++ b/arch/powerpc/sysdev/qe_lib/qe_ic.c
@@ -33,7 +33,7 @@
 
 #include "qe_ic.h"
 
-static DEFINE_SPINLOCK(qe_ic_lock);
+static DEFINE_RAW_SPINLOCK(qe_ic_lock);
 
 static struct qe_ic_info qe_ic_info[] = {
         [1] = {
@@ -201,13 +201,13 @@ static void qe_ic_unmask_irq(unsigned int virq)
         unsigned long flags;
         u32 temp;
 
-        spin_lock_irqsave(&qe_ic_lock, flags);
+        raw_spin_lock_irqsave(&qe_ic_lock, flags);
 
         temp = qe_ic_read(qe_ic->regs, qe_ic_info[src].mask_reg);
         qe_ic_write(qe_ic->regs, qe_ic_info[src].mask_reg,
                     temp | qe_ic_info[src].mask);
 
-        spin_unlock_irqrestore(&qe_ic_lock, flags);
+        raw_spin_unlock_irqrestore(&qe_ic_lock, flags);
 }
 
 static void qe_ic_mask_irq(unsigned int virq)
@@ -217,7 +217,7 @@ static void qe_ic_mask_irq(unsigned int virq)
         unsigned long flags;
         u32 temp;
 
-        spin_lock_irqsave(&qe_ic_lock, flags);
+        raw_spin_lock_irqsave(&qe_ic_lock, flags);
 
         temp = qe_ic_read(qe_ic->regs, qe_ic_info[src].mask_reg);
         qe_ic_write(qe_ic->regs, qe_ic_info[src].mask_reg,
@@ -233,7 +233,7 @@ static void qe_ic_mask_irq(unsigned int virq)
          */
         mb();
 
-        spin_unlock_irqrestore(&qe_ic_lock, flags);
+        raw_spin_unlock_irqrestore(&qe_ic_lock, flags);
 }
 
 static struct irq_chip qe_ic_irq_chip = {