Merge branch 'topic/paca' into next

[linux-2.6-microblaze.git] / arch / powerpc / include / asm / paca.h

diff --git a/arch/powerpc/include/asm/paca.h b/arch/powerpc/include/asm/paca.h
index b62c310..4185f1c 100644 (file)
--- a/arch/powerpc/include/asm/paca.h
+++ b/arch/powerpc/include/asm/paca.h
@@ -32,6 +32,7 @@
 #include <asm/accounting.h>
 #include <asm/hmi.h>
 #include <asm/cpuidle.h>
+#include <asm/atomic.h>
 
 register struct paca_struct *local_paca asm("r13");
 
@@ -46,7 +47,10 @@ extern unsigned int debug_smp_processor_id(void); /* from linux/smp.h */
 #define get_paca()     local_paca
 #endif
 
+#ifdef CONFIG_PPC_PSERIES
 #define get_lppaca()   (get_paca()->lppaca_ptr)
+#endif
+
 #define get_slb_shadow()       (get_paca()->slb_shadow_ptr)
 
 struct task_struct;
@@ -58,7 +62,7 @@ struct task_struct;
  * processor.
  */
 struct paca_struct {
-#ifdef CONFIG_PPC_BOOK3S
+#ifdef CONFIG_PPC_PSERIES
        /*
         * Because hw_cpu_id, unlike other paca fields, is accessed
         * routinely from other CPUs (from the IRQ code), we stick to
@@ -67,7 +71,8 @@ struct paca_struct {
         */
 
        struct lppaca *lppaca_ptr;      /* Pointer to LpPaca for PLIC */
-#endif /* CONFIG_PPC_BOOK3S */
+#endif /* CONFIG_PPC_PSERIES */
+
        /*
         * MAGIC: the spinlock functions in arch/powerpc/lib/locks.c 
         * load lock_token and paca_index with a single lwz
@@ -141,7 +146,7 @@ struct paca_struct {
 #ifdef CONFIG_PPC_BOOK3S
        mm_context_id_t mm_ctx_id;
 #ifdef CONFIG_PPC_MM_SLICES
-       u64 mm_ctx_low_slices_psize;
+       unsigned char mm_ctx_low_slices_psize[BITS_PER_LONG / BITS_PER_BYTE];
        unsigned char mm_ctx_high_slices_psize[SLICE_ARRAY_SIZE];
        unsigned long mm_ctx_slb_addr_limit;
 #else
@@ -160,10 +165,14 @@ struct paca_struct {
        u64 saved_msr;                  /* MSR saved here by enter_rtas */
        u16 trap_save;                  /* Used when bad stack is encountered */
        u8 irq_soft_mask;               /* mask for irq soft masking */
+       u8 soft_enabled;                /* irq soft-enable flag */
        u8 irq_happened;                /* irq happened while soft-disabled */
        u8 io_sync;                     /* writel() needs spin_unlock sync */
        u8 irq_work_pending;            /* IRQ_WORK interrupt while soft-disable */
        u8 nap_state_lost;              /* NV GPR values lost in power7_idle */
+#ifdef CONFIG_KVM_BOOK3S_HV_POSSIBLE
+       u8 pmcregs_in_use;              /* pseries puts this in lppaca */
+#endif
        u64 sprg_vdso;                  /* Saved user-visible sprg */
 #ifdef CONFIG_PPC_TRANSACTIONAL_MEM
        u64 tm_scratch;                 /* TM scratch area for reclaim */
@@ -177,6 +186,8 @@ struct paca_struct {
        u8 thread_mask;
        /* Mask to denote subcore sibling threads */
        u8 subcore_sibling_mask;
+       /* Flag to request this thread not to stop */
+       atomic_t dont_stop;
        /*
         * Pointer to an array which contains pointer
         * to the sibling threads' paca.
@@ -241,18 +252,20 @@ struct paca_struct {
        void *rfi_flush_fallback_area;
        u64 l1d_flush_size;
 #endif
-};
+} ____cacheline_aligned;
 
 extern void copy_mm_to_paca(struct mm_struct *mm);
-extern struct paca_struct *paca;
+extern struct paca_struct **paca_ptrs;
 extern void initialise_paca(struct paca_struct *new_paca, int cpu);
 extern void setup_paca(struct paca_struct *new_paca);
-extern void allocate_pacas(void);
+extern void allocate_paca_ptrs(void);
+extern void allocate_paca(int cpu);
 extern void free_unused_pacas(void);
 
 #else /* CONFIG_PPC64 */
 
-static inline void allocate_pacas(void) { };
+static inline void allocate_paca_ptrs(void) { };
+static inline void allocate_paca(int cpu) { };
 static inline void free_unused_pacas(void) { };
 
 #endif /* CONFIG_PPC64 */