16 files changed, 124 insertions, 94 deletions

diff --git a/arch/arm/include/asm/dma-mapping.h b/arch/arm/include/asm/dma-mapping.h
index 28b7ee8d7398..cb3b7c981c4b 100644
--- a/arch/arm/include/asm/dma-mapping.h
+++ b/arch/arm/include/asm/dma-mapping.h
@@ -205,6 +205,13 @@ extern void *dma_alloc_writecombine(struct device *, size_t, dma_addr_t *,
 int dma_mmap_writecombine(struct device *, struct vm_area_struct *,
                 void *, dma_addr_t, size_t);
 
+/*
+ * This can be called during boot to increase the size of the consistent
+ * DMA region above it's default value of 2MB. It must be called before the
+ * memory allocator is initialised, i.e. before any core_initcall.
+ */
+extern void __init init_consistent_dma_size(unsigned long size);
+
 
 #ifdef CONFIG_DMABOUNCE
 /*
diff --git a/arch/arm/include/asm/entry-macro-multi.S b/arch/arm/include/asm/entry-macro-multi.S
index 2f1e2098dfe7..88d61815f0c0 100644
--- a/arch/arm/include/asm/entry-macro-multi.S
+++ b/arch/arm/include/asm/entry-macro-multi.S
@@ -25,13 +25,6 @@
         movne   r1, sp
         adrne   lr, BSYM(1b)
         bne     do_IPI
-
-#ifdef CONFIG_LOCAL_TIMERS
-        test_for_ltirq r0, r2, r6, lr
-        movne   r0, sp
-        adrne   lr, BSYM(1b)
-        bne     do_local_timer
-#endif
 #endif
 9997:
         .endm
diff --git a/arch/arm/include/asm/hardirq.h b/arch/arm/include/asm/hardirq.h
index 89ad1805e579..ddf07a92a6c8 100644
--- a/arch/arm/include/asm/hardirq.h
+++ b/arch/arm/include/asm/hardirq.h
@@ -9,9 +9,6 @@
 
 typedef struct {
         unsigned int __softirq_pending;
-#ifdef CONFIG_LOCAL_TIMERS
-        unsigned int local_timer_irqs;
-#endif
 #ifdef CONFIG_SMP
         unsigned int ipi_irqs[NR_IPI];
 #endif
diff --git a/arch/arm/include/asm/hardware/entry-macro-gic.S b/arch/arm/include/asm/hardware/entry-macro-gic.S
index c115b82fe80a..74ebc803904d 100644
--- a/arch/arm/include/asm/hardware/entry-macro-gic.S
+++ b/arch/arm/include/asm/hardware/entry-macro-gic.S
@@ -22,15 +22,11 @@
  * interrupt controller spec.  To wit:
  *
  * Interrupts 0-15 are IPI
- * 16-28 are reserved
- * 29-31 are local.  We allow 30 to be used for the watchdog.
+ * 16-31 are local.  We allow 30 to be used for the watchdog.
  * 32-1020 are global
  * 1021-1022 are reserved
  * 1023 is "spurious" (no interrupt)
  *
- * For now, we ignore all local interrupts so only return an interrupt if it's
- * between 30 and 1020.  The test_for_ipi routine below will pick up on IPIs.
- *
  * A simple read from the controller will tell us the number of the highest
  * priority enabled interrupt.  We then just need to check whether it is in the
  * valid range for an IRQ (30-1020 inclusive).
@@ -43,7 +39,7 @@
 
         ldr     \tmp, =1021
         bic     \irqnr, \irqstat, #0x1c00
-        cmp     \irqnr, #29
+        cmp     \irqnr, #15
         cmpcc   \irqnr, \irqnr
         cmpne   \irqnr, \tmp
         cmpcs   \irqnr, \irqnr
@@ -62,14 +58,3 @@
         strcc   \irqstat, [\base, #GIC_CPU_EOI]
         cmpcs   \irqnr, \irqnr
         .endm
-
-/* As above, this assumes that irqstat and base are preserved.. */
-
-        .macro test_for_ltirq, irqnr, irqstat, base, tmp
-        bic     \irqnr, \irqstat, #0x1c00
-        mov     \tmp, #0
-        cmp     \irqnr, #29
-        moveq   \tmp, #1
-        streq   \irqstat, [\base, #GIC_CPU_EOI]
-        cmp     \tmp, #0
-        .endm
diff --git a/arch/arm/include/asm/hardware/gic.h b/arch/arm/include/asm/hardware/gic.h
index 435d3f86c708..14867e12f205 100644
--- a/arch/arm/include/asm/hardware/gic.h
+++ b/arch/arm/include/asm/hardware/gic.h
@@ -40,12 +40,19 @@ void gic_init(unsigned int, unsigned int, void __iomem *, void __iomem *);
 void gic_secondary_init(unsigned int);
 void gic_cascade_irq(unsigned int gic_nr, unsigned int irq);
 void gic_raise_softirq(const struct cpumask *mask, unsigned int irq);
-void gic_enable_ppi(unsigned int);
 
 struct gic_chip_data {
         unsigned int irq_offset;
         void __iomem *dist_base;
         void __iomem *cpu_base;
+#ifdef CONFIG_CPU_PM
+        u32 saved_spi_enable[DIV_ROUND_UP(1020, 32)];
+        u32 saved_spi_conf[DIV_ROUND_UP(1020, 16)];
+        u32 saved_spi_target[DIV_ROUND_UP(1020, 4)];
+        u32 __percpu *saved_ppi_enable;
+        u32 __percpu *saved_ppi_conf;
+#endif
+        unsigned int gic_irqs;
 };
 #endif
 
diff --git a/arch/arm/include/asm/hw_breakpoint.h b/arch/arm/include/asm/hw_breakpoint.h
index f389b2704d82..c190bc992f0e 100644
--- a/arch/arm/include/asm/hw_breakpoint.h
+++ b/arch/arm/include/asm/hw_breakpoint.h
@@ -50,6 +50,7 @@ static inline void decode_ctrl_reg(u32 reg,
 #define ARM_DEBUG_ARCH_V6_1     2
 #define ARM_DEBUG_ARCH_V7_ECP14 3
 #define ARM_DEBUG_ARCH_V7_MM    4
+#define ARM_DEBUG_ARCH_V7_1     5
 
 /* Breakpoint */
 #define ARM_BREAKPOINT_EXECUTE  0
@@ -57,6 +58,7 @@ static inline void decode_ctrl_reg(u32 reg,
 /* Watchpoints */
 #define ARM_BREAKPOINT_LOAD     1
 #define ARM_BREAKPOINT_STORE    2
+#define ARM_FSR_ACCESS_MASK     (1 << 11)
 
 /* Privilege Levels */
 #define ARM_BREAKPOINT_PRIV     1
diff --git a/arch/arm/include/asm/localtimer.h b/arch/arm/include/asm/localtimer.h
index 6fd955d34c65..c6a18424888e 100644
--- a/arch/arm/include/asm/localtimer.h
+++ b/arch/arm/include/asm/localtimer.h
@@ -11,6 +11,7 @@
 #define __ASM_ARM_LOCALTIMER_H
 
 #include <linux/errno.h>
+#include <linux/interrupt.h>
 
 struct clock_event_device;
 
@@ -19,31 +20,20 @@ struct clock_event_device;
  */
 void percpu_timer_setup(void);
 
-/*
- * Called from assembly, this is the local timer IRQ handler
- */
-asmlinkage void do_local_timer(struct pt_regs *);
-
-/*
- * Called from C code
- */
-void handle_local_timer(struct pt_regs *);
-
 #ifdef CONFIG_LOCAL_TIMERS
 
 #ifdef CONFIG_HAVE_ARM_TWD
 
 #include "smp_twd.h"
 
-#define local_timer_ack()       twd_timer_ack()
+#define local_timer_stop(c)     twd_timer_stop((c))
 
 #else
 
 /*
- * Platform provides this to acknowledge a local timer IRQ.
- * Returns true if the local timer IRQ is to be processed.
+ * Stop the local timer
  */
-int local_timer_ack(void);
+void local_timer_stop(struct clock_event_device *);
 
 #endif
 
@@ -58,6 +48,10 @@ static inline int local_timer_setup(struct clock_event_device *evt)
 {
         return -ENXIO;
 }
+
+static inline void local_timer_stop(struct clock_event_device *evt)
+{
+}
 #endif
 
 #endif
diff --git a/arch/arm/include/asm/mach/arch.h b/arch/arm/include/asm/mach/arch.h
index c5699987fa98..7d19425dd496 100644
--- a/arch/arm/include/asm/mach/arch.h
+++ b/arch/arm/include/asm/mach/arch.h
@@ -17,7 +17,7 @@ struct sys_timer;
 struct machine_desc {
         unsigned int            nr;             /* architecture number  */
         const char              *name;          /* architecture name    */
-        unsigned long           boot_params;    /* tagged list          */
+        unsigned long           atag_offset;    /* tagged list (relative) */
         const char              **dt_compat;    /* array of device tree
                                                  * 'compatible' strings */
 
diff --git a/arch/arm/include/asm/mach/map.h b/arch/arm/include/asm/mach/map.h
index d2fedb5aeb1f..b36f3654bf54 100644
--- a/arch/arm/include/asm/mach/map.h
+++ b/arch/arm/include/asm/mach/map.h
@@ -29,6 +29,7 @@ struct map_desc {
 #define MT_MEMORY_NONCACHED     11
 #define MT_MEMORY_DTCM          12
 #define MT_MEMORY_ITCM          13
+#define MT_MEMORY_SO            14
 
 #ifdef CONFIG_MMU
 extern void iotable_init(struct map_desc *, int);
diff --git a/arch/arm/include/asm/memory.h b/arch/arm/include/asm/memory.h
index 441fc4fe8263..a8997d71084e 100644
--- a/arch/arm/include/asm/memory.h
+++ b/arch/arm/include/asm/memory.h
@@ -16,9 +16,12 @@
 #include <linux/compiler.h>
 #include <linux/const.h>
 #include <linux/types.h>
-#include <mach/memory.h>
 #include <asm/sizes.h>
 
+#ifdef CONFIG_NEED_MACH_MEMORY_H
+#include <mach/memory.h>
+#endif
+
 /*
  * Allow for constants defined here to be used from assembly code
  * by prepending the UL suffix only with actual C code compilation.
@@ -77,16 +80,7 @@
  */
 #define IOREMAP_MAX_ORDER       24
 
-/*
- * Size of DMA-consistent memory region.  Must be multiple of 2M,
- * between 2MB and 14MB inclusive.
- */
-#ifndef CONSISTENT_DMA_SIZE
-#define CONSISTENT_DMA_SIZE     SZ_2M
-#endif
-
 #define CONSISTENT_END          (0xffe00000UL)
-#define CONSISTENT_BASE         (CONSISTENT_END - CONSISTENT_DMA_SIZE)
 
 #else /* CONFIG_MMU */
 
@@ -193,7 +187,11 @@ static inline unsigned long __phys_to_virt(unsigned long x)
 #endif
 
 #ifndef PHYS_OFFSET
+#ifdef PLAT_PHYS_OFFSET
 #define PHYS_OFFSET     PLAT_PHYS_OFFSET
+#else
+#define PHYS_OFFSET     UL(CONFIG_PHYS_OFFSET)
+#endif
 #endif
 
 /*
diff --git a/arch/arm/include/asm/pgtable.h b/arch/arm/include/asm/pgtable.h
index 8ade1840c6f2..9451dce3a553 100644
--- a/arch/arm/include/asm/pgtable.h
+++ b/arch/arm/include/asm/pgtable.h
@@ -101,6 +101,9 @@ extern pgprot_t		pgprot_kernel;
 #define pgprot_writecombine(prot) \
         __pgprot_modify(prot, L_PTE_MT_MASK, L_PTE_MT_BUFFERABLE)
 
+#define pgprot_stronglyordered(prot) \
+        __pgprot_modify(prot, L_PTE_MT_MASK, L_PTE_MT_UNCACHED)
+
 #ifdef CONFIG_ARM_DMA_MEM_BUFFERABLE
 #define pgprot_dmacoherent(prot) \
         __pgprot_modify(prot, L_PTE_MT_MASK, L_PTE_MT_BUFFERABLE | L_PTE_XN)
diff --git a/arch/arm/include/asm/pmu.h b/arch/arm/include/asm/pmu.h
index b7e82c4aced6..71d99b83cdb9 100644
--- a/arch/arm/include/asm/pmu.h
+++ b/arch/arm/include/asm/pmu.h
@@ -13,7 +13,12 @@
 #define __ARM_PMU_H__
 
 #include <linux/interrupt.h>
+#include <linux/perf_event.h>
 
+/*
+ * Types of PMUs that can be accessed directly and require mutual
+ * exclusion between profiling tools.
+ */
 enum arm_pmu_type {
         ARM_PMU_DEVICE_CPU      = 0,
         ARM_NUM_PMU_DEVICES,
@@ -37,21 +42,17 @@ struct arm_pmu_platdata {
  * reserve_pmu() - reserve the hardware performance counters
  *
  * Reserve the hardware performance counters in the system for exclusive use.
- * The platform_device for the system is returned on success, ERR_PTR()
- * encoded error on failure.
+ * Returns 0 on success or -EBUSY if the lock is already held.
  */
-extern struct platform_device *
+extern int
 reserve_pmu(enum arm_pmu_type type);
 
 /**
  * release_pmu() - Relinquish control of the performance counters
  *
  * Release the performance counters and allow someone else to use them.
- * Callers must have disabled the counters and released IRQs before calling
- * this. The platform_device returned from reserve_pmu() must be passed as
- * a cookie.
  */
-extern int
+extern void
 release_pmu(enum arm_pmu_type type);
 
 /**
@@ -68,24 +69,78 @@ init_pmu(enum arm_pmu_type type);
 
 #include <linux/err.h>
 
-static inline struct platform_device *
-reserve_pmu(enum arm_pmu_type type)
-{
-        return ERR_PTR(-ENODEV);
-}
-
 static inline int
-release_pmu(enum arm_pmu_type type)
+reserve_pmu(enum arm_pmu_type type)
 {
         return -ENODEV;
 }
 
-static inline int
-init_pmu(enum arm_pmu_type type)
-{
-        return -ENODEV;
-}
+static inline void
+release_pmu(enum arm_pmu_type type)     { }
 
 #endif /* CONFIG_CPU_HAS_PMU */
 
+#ifdef CONFIG_HW_PERF_EVENTS
+
+/* The events for a given PMU register set. */
+struct pmu_hw_events {
+        /*
+         * The events that are active on the PMU for the given index.
+         */
+        struct perf_event       **events;
+
+        /*
+         * A 1 bit for an index indicates that the counter is being used for
+         * an event. A 0 means that the counter can be used.
+         */
+        unsigned long           *used_mask;
+
+        /*
+         * Hardware lock to serialize accesses to PMU registers. Needed for the
+         * read/modify/write sequences.
+         */
+        raw_spinlock_t          pmu_lock;
+};
+
+struct arm_pmu {
+        struct pmu      pmu;
+        enum arm_perf_pmu_ids id;
+        enum arm_pmu_type type;
+        cpumask_t       active_irqs;
+        const char      *name;
+        irqreturn_t     (*handle_irq)(int irq_num, void *dev);
+        void            (*enable)(struct hw_perf_event *evt, int idx);
+        void            (*disable)(struct hw_perf_event *evt, int idx);
+        int             (*get_event_idx)(struct pmu_hw_events *hw_events,
+                                         struct hw_perf_event *hwc);
+        int             (*set_event_filter)(struct hw_perf_event *evt,
+                                            struct perf_event_attr *attr);
+        u32             (*read_counter)(int idx);
+        void            (*write_counter)(int idx, u32 val);
+        void            (*start)(void);
+        void            (*stop)(void);
+        void            (*reset)(void *);
+        int             (*map_event)(struct perf_event *event);
+        int             num_events;
+        atomic_t        active_events;
+        struct mutex    reserve_mutex;
+        u64             max_period;
+        struct platform_device  *plat_device;
+        struct pmu_hw_events    *(*get_hw_events)(void);
+};
+
+#define to_arm_pmu(p) (container_of(p, struct arm_pmu, pmu))
+
+int __init armpmu_register(struct arm_pmu *armpmu, char *name, int type);
+
+u64 armpmu_event_update(struct perf_event *event,
+                        struct hw_perf_event *hwc,
+                        int idx, int overflow);
+
+int armpmu_event_set_period(struct perf_event *event,
+                            struct hw_perf_event *hwc,
+                            int idx);
+
+#endif /* CONFIG_HW_PERF_EVENTS */
+
 #endif /* __ARM_PMU_H__ */
diff --git a/arch/arm/include/asm/proc-fns.h b/arch/arm/include/asm/proc-fns.h
index 633d1cb84d87..9e92cb205e65 100644
--- a/arch/arm/include/asm/proc-fns.h
+++ b/arch/arm/include/asm/proc-fns.h
@@ -81,6 +81,10 @@ extern void cpu_dcache_clean_area(void *, int);
 extern void cpu_do_switch_mm(unsigned long pgd_phys, struct mm_struct *mm);
 extern void cpu_set_pte_ext(pte_t *ptep, pte_t pte, unsigned int ext);
 extern void cpu_reset(unsigned long addr) __attribute__((noreturn));
+
+/* These three are private to arch/arm/kernel/suspend.c */
+extern void cpu_do_suspend(void *);
+extern void cpu_do_resume(void *);
 #else
 #define cpu_proc_init                   processor._proc_init
 #define cpu_proc_fin                    processor._proc_fin
@@ -89,6 +93,10 @@ extern void cpu_reset(unsigned long addr) __attribute__((noreturn));
 #define cpu_dcache_clean_area           processor.dcache_clean_area
 #define cpu_set_pte_ext                 processor.set_pte_ext
 #define cpu_do_switch_mm                processor.switch_mm
+
+/* These three are private to arch/arm/kernel/suspend.c */
+#define cpu_do_suspend                  processor.do_suspend
+#define cpu_do_resume                   processor.do_resume
 #endif
 
 extern void cpu_resume(void);
diff --git a/arch/arm/include/asm/smp.h b/arch/arm/include/asm/smp.h
index 0a17b62538c2..1e5717afc4ac 100644
--- a/arch/arm/include/asm/smp.h
+++ b/arch/arm/include/asm/smp.h
@@ -99,9 +99,4 @@ extern void platform_cpu_enable(unsigned int cpu);
 extern void arch_send_call_function_single_ipi(int cpu);
 extern void arch_send_call_function_ipi_mask(const struct cpumask *mask);
 
-/*
- * show local interrupt info
- */
-extern void show_local_irqs(struct seq_file *, int);
-
 #endif /* ifndef __ASM_ARM_SMP_H */
diff --git a/arch/arm/include/asm/smp_twd.h b/arch/arm/include/asm/smp_twd.h
index fed9981fba08..ef9ffba97ad8 100644
--- a/arch/arm/include/asm/smp_twd.h
+++ b/arch/arm/include/asm/smp_twd.h
@@ -22,7 +22,7 @@ struct clock_event_device;
 
 extern void __iomem *twd_base;
 
-int twd_timer_ack(void);
 void twd_timer_setup(struct clock_event_device *);
+void twd_timer_stop(struct clock_event_device *);
 
 #endif
diff --git a/arch/arm/include/asm/suspend.h b/arch/arm/include/asm/suspend.h
index b0e4e1a02318..1c0a551ae375 100644
--- a/arch/arm/include/asm/suspend.h
+++ b/arch/arm/include/asm/suspend.h
@@ -1,22 +1,7 @@
 #ifndef __ASM_ARM_SUSPEND_H
 #define __ASM_ARM_SUSPEND_H
 
-#include <asm/memory.h>
-#include <asm/tlbflush.h>
-
 extern void cpu_resume(void);
-
-/*
- * Hide the first two arguments to __cpu_suspend - these are an implementation
- * detail which platform code shouldn't have to know about.
- */
-static inline int cpu_suspend(unsigned long arg, int (*fn)(unsigned long))
-{
-        extern int __cpu_suspend(int, long, unsigned long,
-                                 int (*)(unsigned long));
-        int ret = __cpu_suspend(0, PHYS_OFFSET - PAGE_OFFSET, arg, fn);
-        flush_tlb_all();
-        return ret;
-}
+extern int cpu_suspend(unsigned long, int (*)(unsigned long));
 
 #endif