diff options
Diffstat (limited to 'arch/powerpc/include')
-rw-r--r-- | arch/powerpc/include/asm/atomic.h | 18 | ||||
-rw-r--r-- | arch/powerpc/include/asm/byteorder.h | 38 | ||||
-rw-r--r-- | arch/powerpc/include/asm/cputable.h | 6 | ||||
-rw-r--r-- | arch/powerpc/include/asm/dma-mapping.h | 36 | ||||
-rw-r--r-- | arch/powerpc/include/asm/eeh.h | 8 | ||||
-rw-r--r-- | arch/powerpc/include/asm/local.h | 4 | ||||
-rw-r--r-- | arch/powerpc/include/asm/lppaca.h | 3 | ||||
-rw-r--r-- | arch/powerpc/include/asm/mutex.h | 135 | ||||
-rw-r--r-- | arch/powerpc/include/asm/pci-bridge.h | 4 | ||||
-rw-r--r-- | arch/powerpc/include/asm/pci.h | 11 | ||||
-rw-r--r-- | arch/powerpc/include/asm/ps3.h | 3 | ||||
-rw-r--r-- | arch/powerpc/include/asm/ps3av.h | 4 | ||||
-rw-r--r-- | arch/powerpc/include/asm/smp.h | 7 | ||||
-rw-r--r-- | arch/powerpc/include/asm/spinlock.h | 2 | ||||
-rw-r--r-- | arch/powerpc/include/asm/synch.h | 4 | ||||
-rw-r--r-- | arch/powerpc/include/asm/system.h | 24 | ||||
-rw-r--r-- | arch/powerpc/include/asm/time.h | 20 | ||||
-rw-r--r-- | arch/powerpc/include/asm/vdso_datapage.h | 3 |
18 files changed, 215 insertions, 115 deletions
diff --git a/arch/powerpc/include/asm/atomic.h b/arch/powerpc/include/asm/atomic.h index f3fc733758f..499be5bdd6f 100644 --- a/arch/powerpc/include/asm/atomic.h +++ b/arch/powerpc/include/asm/atomic.h @@ -111,7 +111,7 @@ static __inline__ void atomic_inc(atomic_t *v) bne- 1b" : "=&r" (t), "+m" (v->counter) : "r" (&v->counter) - : "cc"); + : "cc", "xer"); } static __inline__ int atomic_inc_return(atomic_t *v) @@ -128,7 +128,7 @@ static __inline__ int atomic_inc_return(atomic_t *v) ISYNC_ON_SMP : "=&r" (t) : "r" (&v->counter) - : "cc", "memory"); + : "cc", "xer", "memory"); return t; } @@ -155,7 +155,7 @@ static __inline__ void atomic_dec(atomic_t *v) bne- 1b" : "=&r" (t), "+m" (v->counter) : "r" (&v->counter) - : "cc"); + : "cc", "xer"); } static __inline__ int atomic_dec_return(atomic_t *v) @@ -172,7 +172,7 @@ static __inline__ int atomic_dec_return(atomic_t *v) ISYNC_ON_SMP : "=&r" (t) : "r" (&v->counter) - : "cc", "memory"); + : "cc", "xer", "memory"); return t; } @@ -346,7 +346,7 @@ static __inline__ void atomic64_inc(atomic64_t *v) bne- 1b" : "=&r" (t), "+m" (v->counter) : "r" (&v->counter) - : "cc"); + : "cc", "xer"); } static __inline__ long atomic64_inc_return(atomic64_t *v) @@ -362,7 +362,7 @@ static __inline__ long atomic64_inc_return(atomic64_t *v) ISYNC_ON_SMP : "=&r" (t) : "r" (&v->counter) - : "cc", "memory"); + : "cc", "xer", "memory"); return t; } @@ -388,7 +388,7 @@ static __inline__ void atomic64_dec(atomic64_t *v) bne- 1b" : "=&r" (t), "+m" (v->counter) : "r" (&v->counter) - : "cc"); + : "cc", "xer"); } static __inline__ long atomic64_dec_return(atomic64_t *v) @@ -404,7 +404,7 @@ static __inline__ long atomic64_dec_return(atomic64_t *v) ISYNC_ON_SMP : "=&r" (t) : "r" (&v->counter) - : "cc", "memory"); + : "cc", "xer", "memory"); return t; } @@ -431,7 +431,7 @@ static __inline__ long atomic64_dec_if_positive(atomic64_t *v) "\n\ 2:" : "=&r" (t) : "r" (&v->counter) - : "cc", "memory"); + : "cc", "xer", "memory"); return t; } diff --git a/arch/powerpc/include/asm/byteorder.h b/arch/powerpc/include/asm/byteorder.h index b37752214a1..d5de325472e 100644 --- a/arch/powerpc/include/asm/byteorder.h +++ b/arch/powerpc/include/asm/byteorder.h @@ -11,6 +11,8 @@ #include <asm/types.h> #include <linux/compiler.h> +#define __BIG_ENDIAN + #ifdef __GNUC__ #ifdef __KERNEL__ @@ -21,12 +23,19 @@ static __inline__ __u16 ld_le16(const volatile __u16 *addr) __asm__ __volatile__ ("lhbrx %0,0,%1" : "=r" (val) : "r" (addr), "m" (*addr)); return val; } +#define __arch_swab16p ld_le16 static __inline__ void st_le16(volatile __u16 *addr, const __u16 val) { __asm__ __volatile__ ("sthbrx %1,0,%2" : "=m" (*addr) : "r" (val), "r" (addr)); } +static inline void __arch_swab16s(__u16 *addr) +{ + st_le16(addr, *addr); +} +#define __arch_swab16s __arch_swab16s + static __inline__ __u32 ld_le32(const volatile __u32 *addr) { __u32 val; @@ -34,13 +43,20 @@ static __inline__ __u32 ld_le32(const volatile __u32 *addr) __asm__ __volatile__ ("lwbrx %0,0,%1" : "=r" (val) : "r" (addr), "m" (*addr)); return val; } +#define __arch_swab32p ld_le32 static __inline__ void st_le32(volatile __u32 *addr, const __u32 val) { __asm__ __volatile__ ("stwbrx %1,0,%2" : "=m" (*addr) : "r" (val), "r" (addr)); } -static __inline__ __attribute_const__ __u16 ___arch__swab16(__u16 value) +static inline void __arch_swab32s(__u32 *addr) +{ + st_le32(addr, *addr); +} +#define __arch_swab32s __arch_swab32s + +static inline __attribute_const__ __u16 __arch_swab16(__u16 value) { __u16 result; @@ -49,8 +65,9 @@ static __inline__ __attribute_const__ __u16 ___arch__swab16(__u16 value) : "r" (value), "0" (value >> 8)); return result; } +#define __arch_swab16 __arch_swab16 -static __inline__ __attribute_const__ __u32 ___arch__swab32(__u32 value) +static inline __attribute_const__ __u32 __arch_swab32(__u32 value) { __u32 result; @@ -61,29 +78,16 @@ static __inline__ __attribute_const__ __u32 ___arch__swab32(__u32 value) : "r" (value), "0" (value >> 24)); return result; } - -#define __arch__swab16(x) ___arch__swab16(x) -#define __arch__swab32(x) ___arch__swab32(x) - -/* The same, but returns converted value from the location pointer by addr. */ -#define __arch__swab16p(addr) ld_le16(addr) -#define __arch__swab32p(addr) ld_le32(addr) - -/* The same, but do the conversion in situ, ie. put the value back to addr. */ -#define __arch__swab16s(addr) st_le16(addr,*addr) -#define __arch__swab32s(addr) st_le32(addr,*addr) +#define __arch_swab32 __arch_swab32 #endif /* __KERNEL__ */ -#ifndef __STRICT_ANSI__ -#define __BYTEORDER_HAS_U64__ #ifndef __powerpc64__ #define __SWAB_64_THRU_32__ #endif /* __powerpc64__ */ -#endif /* __STRICT_ANSI__ */ #endif /* __GNUC__ */ -#include <linux/byteorder/big_endian.h> +#include <linux/byteorder.h> #endif /* _ASM_POWERPC_BYTEORDER_H */ diff --git a/arch/powerpc/include/asm/cputable.h b/arch/powerpc/include/asm/cputable.h index 1e94b07a020..803d174dae2 100644 --- a/arch/powerpc/include/asm/cputable.h +++ b/arch/powerpc/include/asm/cputable.h @@ -194,6 +194,7 @@ extern const char *powerpc_base_platform; #define CPU_FTR_VSX LONG_ASM_CONST(0x0010000000000000) #define CPU_FTR_SAO LONG_ASM_CONST(0x0020000000000000) #define CPU_FTR_CP_USE_DCBTZ LONG_ASM_CONST(0x0040000000000000) +#define CPU_FTR_UNALIGNED_LD_STD LONG_ASM_CONST(0x0080000000000000) #ifndef __ASSEMBLY__ @@ -404,7 +405,7 @@ extern const char *powerpc_base_platform; 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_DSCR | CPU_FTR_UNALIGNED_LD_STD) #define CPU_FTRS_POWER7 (CPU_FTR_USE_TB | CPU_FTR_LWSYNC | \ CPU_FTR_HPTE_TABLE | CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_CTRL | \ CPU_FTR_MMCRA | CPU_FTR_SMT | \ @@ -415,7 +416,8 @@ extern const char *powerpc_base_platform; CPU_FTR_HPTE_TABLE | CPU_FTR_PPCAS_ARCH_V2 | CPU_FTR_CTRL | \ CPU_FTR_ALTIVEC_COMP | CPU_FTR_MMCRA | CPU_FTR_SMT | \ CPU_FTR_PAUSE_ZERO | CPU_FTR_CI_LARGE_PAGE | \ - CPU_FTR_CELL_TB_BUG | CPU_FTR_CP_USE_DCBTZ) + CPU_FTR_CELL_TB_BUG | CPU_FTR_CP_USE_DCBTZ | \ + CPU_FTR_UNALIGNED_LD_STD) #define CPU_FTRS_PA6T (CPU_FTR_USE_TB | CPU_FTR_LWSYNC | \ CPU_FTR_HPTE_TABLE | CPU_FTR_PPCAS_ARCH_V2 | \ CPU_FTR_ALTIVEC_COMP | CPU_FTR_CI_LARGE_PAGE | \ diff --git a/arch/powerpc/include/asm/dma-mapping.h b/arch/powerpc/include/asm/dma-mapping.h index fddb229bd74..3c4a2c21d60 100644 --- a/arch/powerpc/include/asm/dma-mapping.h +++ b/arch/powerpc/include/asm/dma-mapping.h @@ -60,12 +60,6 @@ struct dma_mapping_ops { dma_addr_t *dma_handle, gfp_t flag); void (*free_coherent)(struct device *dev, size_t size, void *vaddr, dma_addr_t dma_handle); - dma_addr_t (*map_single)(struct device *dev, void *ptr, - size_t size, enum dma_data_direction direction, - struct dma_attrs *attrs); - void (*unmap_single)(struct device *dev, dma_addr_t dma_addr, - size_t size, enum dma_data_direction direction, - struct dma_attrs *attrs); int (*map_sg)(struct device *dev, struct scatterlist *sg, int nents, enum dma_data_direction direction, struct dma_attrs *attrs); @@ -149,10 +143,9 @@ static inline int dma_set_mask(struct device *dev, u64 dma_mask) } /* - * TODO: map_/unmap_single will ideally go away, to be completely - * replaced by map/unmap_page. Until then, we allow dma_ops to have - * one or the other, or both by checking to see if the specific - * function requested exists; and if not, falling back on the other set. + * map_/unmap_single actually call through to map/unmap_page now that all the + * dma_mapping_ops have been converted over. We just have to get the page and + * offset to pass through to map_page */ static inline dma_addr_t dma_map_single_attrs(struct device *dev, void *cpu_addr, @@ -164,10 +157,6 @@ static inline dma_addr_t dma_map_single_attrs(struct device *dev, BUG_ON(!dma_ops); - if (dma_ops->map_single) - return dma_ops->map_single(dev, cpu_addr, size, direction, - attrs); - return dma_ops->map_page(dev, virt_to_page(cpu_addr), (unsigned long)cpu_addr % PAGE_SIZE, size, direction, attrs); @@ -183,11 +172,6 @@ static inline void dma_unmap_single_attrs(struct device *dev, BUG_ON(!dma_ops); - if (dma_ops->unmap_single) { - dma_ops->unmap_single(dev, dma_addr, size, direction, attrs); - return; - } - dma_ops->unmap_page(dev, dma_addr, size, direction, attrs); } @@ -201,12 +185,7 @@ static inline dma_addr_t dma_map_page_attrs(struct device *dev, BUG_ON(!dma_ops); - if (dma_ops->map_page) - return dma_ops->map_page(dev, page, offset, size, direction, - attrs); - - return dma_ops->map_single(dev, page_address(page) + offset, size, - direction, attrs); + return dma_ops->map_page(dev, page, offset, size, direction, attrs); } static inline void dma_unmap_page_attrs(struct device *dev, @@ -219,12 +198,7 @@ static inline void dma_unmap_page_attrs(struct device *dev, BUG_ON(!dma_ops); - if (dma_ops->unmap_page) { - dma_ops->unmap_page(dev, dma_address, size, direction, attrs); - return; - } - - dma_ops->unmap_single(dev, dma_address, size, direction, attrs); + dma_ops->unmap_page(dev, dma_address, size, direction, attrs); } static inline int dma_map_sg_attrs(struct device *dev, struct scatterlist *sg, diff --git a/arch/powerpc/include/asm/eeh.h b/arch/powerpc/include/asm/eeh.h index b886bec6701..66ea9b8b95c 100644 --- a/arch/powerpc/include/asm/eeh.h +++ b/arch/powerpc/include/asm/eeh.h @@ -17,8 +17,8 @@ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA */ -#ifndef _PPC64_EEH_H -#define _PPC64_EEH_H +#ifndef _POWERPC_EEH_H +#define _POWERPC_EEH_H #ifdef __KERNEL__ #include <linux/init.h> @@ -110,6 +110,7 @@ static inline void eeh_remove_bus_device(struct pci_dev *dev) { } #define EEH_IO_ERROR_VALUE(size) (-1UL) #endif /* CONFIG_EEH */ +#ifdef CONFIG_PPC64 /* * MMIO read/write operations with EEH support. */ @@ -207,5 +208,6 @@ static inline void eeh_readsl(const volatile void __iomem *addr, void * buf, eeh_check_failure(addr, *(u32*)buf); } +#endif /* CONFIG_PPC64 */ #endif /* __KERNEL__ */ -#endif /* _PPC64_EEH_H */ +#endif /* _POWERPC_EEH_H */ diff --git a/arch/powerpc/include/asm/local.h b/arch/powerpc/include/asm/local.h index 612d8327665..84b457a3c1b 100644 --- a/arch/powerpc/include/asm/local.h +++ b/arch/powerpc/include/asm/local.h @@ -67,7 +67,7 @@ static __inline__ long local_inc_return(local_t *l) bne- 1b" : "=&r" (t) : "r" (&(l->a.counter)) - : "cc", "memory"); + : "cc", "xer", "memory"); return t; } @@ -94,7 +94,7 @@ static __inline__ long local_dec_return(local_t *l) bne- 1b" : "=&r" (t) : "r" (&(l->a.counter)) - : "cc", "memory"); + : "cc", "xer", "memory"); return t; } diff --git a/arch/powerpc/include/asm/lppaca.h b/arch/powerpc/include/asm/lppaca.h index 2fe268b1033..25aaa97facd 100644 --- a/arch/powerpc/include/asm/lppaca.h +++ b/arch/powerpc/include/asm/lppaca.h @@ -133,7 +133,8 @@ struct lppaca { //============================================================================= // CACHE_LINE_4-5 0x0180 - 0x027F Contains PMC interrupt data //============================================================================= - u8 pmc_save_area[256]; // PMC interrupt Area x00-xFF + u32 page_ins; // CMO Hint - # page ins by OS x00-x04 + u8 pmc_save_area[252]; // PMC interrupt Area x04-xFF } __attribute__((__aligned__(0x400))); extern struct lppaca lppaca[]; diff --git a/arch/powerpc/include/asm/mutex.h b/arch/powerpc/include/asm/mutex.h index 458c1f7fbc1..dabc01c727b 100644 --- a/arch/powerpc/include/asm/mutex.h +++ b/arch/powerpc/include/asm/mutex.h @@ -1,9 +1,134 @@ /* - * Pull in the generic implementation for the mutex fastpath. + * Optimised mutex implementation of include/asm-generic/mutex-dec.h algorithm + */ +#ifndef _ASM_POWERPC_MUTEX_H +#define _ASM_POWERPC_MUTEX_H + +static inline int __mutex_cmpxchg_lock(atomic_t *v, int old, int new) +{ + int t; + + __asm__ __volatile__ ( +"1: lwarx %0,0,%1 # mutex trylock\n\ + cmpw 0,%0,%2\n\ + bne- 2f\n" + PPC405_ERR77(0,%1) +" stwcx. %3,0,%1\n\ + bne- 1b" + ISYNC_ON_SMP + "\n\ +2:" + : "=&r" (t) + : "r" (&v->counter), "r" (old), "r" (new) + : "cc", "memory"); + + return t; +} + +static inline int __mutex_dec_return_lock(atomic_t *v) +{ + int t; + + __asm__ __volatile__( +"1: lwarx %0,0,%1 # mutex lock\n\ + addic %0,%0,-1\n" + PPC405_ERR77(0,%1) +" stwcx. %0,0,%1\n\ + bne- 1b" + ISYNC_ON_SMP + : "=&r" (t) + : "r" (&v->counter) + : "cc", "memory"); + + return t; +} + +static inline int __mutex_inc_return_unlock(atomic_t *v) +{ + int t; + + __asm__ __volatile__( + LWSYNC_ON_SMP +"1: lwarx %0,0,%1 # mutex unlock\n\ + addic %0,%0,1\n" + PPC405_ERR77(0,%1) +" stwcx. %0,0,%1 \n\ + bne- 1b" + : "=&r" (t) + : "r" (&v->counter) + : "cc", "memory"); + + return t; +} + +/** + * __mutex_fastpath_lock - try to take the lock by moving the count + * from 1 to a 0 value + * @count: pointer of type atomic_t + * @fail_fn: function to call if the original value was not 1 + * + * Change the count from 1 to a value lower than 1, and call <fail_fn> if + * it wasn't 1 originally. This function MUST leave the value lower than + * 1 even when the "1" assertion wasn't true. + */ +static inline void +__mutex_fastpath_lock(atomic_t *count, void (*fail_fn)(atomic_t *)) +{ + if (unlikely(__mutex_dec_return_lock(count) < 0)) + fail_fn(count); +} + +/** + * __mutex_fastpath_lock_retval - try to take the lock by moving the count + * from 1 to a 0 value + * @count: pointer of type atomic_t + * @fail_fn: function to call if the original value was not 1 + * + * Change the count from 1 to a value lower than 1, and call <fail_fn> if + * it wasn't 1 originally. This function returns 0 if the fastpath succeeds, + * or anything the slow path function returns. + */ +static inline int +__mutex_fastpath_lock_retval(atomic_t *count, int (*fail_fn)(atomic_t *)) +{ + if (unlikely(__mutex_dec_return_lock(count) < 0)) + return fail_fn(count); + return 0; +} + +/** + * __mutex_fastpath_unlock - try to promote the count from 0 to 1 + * @count: pointer of type atomic_t + * @fail_fn: function to call if the original value was not 0 + * + * Try to promote the count from 0 to 1. If it wasn't 0, call <fail_fn>. + * In the failure case, this function is allowed to either set the value to + * 1, or to set it to a value lower than 1. + */ +static inline void +__mutex_fastpath_unlock(atomic_t *count, void (*fail_fn)(atomic_t *)) +{ + if (unlikely(__mutex_inc_return_unlock(count) <= 0)) + fail_fn(count); +} + +#define __mutex_slowpath_needs_to_unlock() 1 + +/** + * __mutex_fastpath_trylock - try to acquire the mutex, without waiting + * + * @count: pointer of type atomic_t + * @fail_fn: fallback function * - * TODO: implement optimized primitives instead, or leave the generic - * implementation in place, or pick the atomic_xchg() based generic - * implementation. (see asm-generic/mutex-xchg.h for details) + * Change the count from 1 to 0, and return 1 (success), or if the count + * was not 1, then return 0 (failure). */ +static inline int +__mutex_fastpath_trylock(atomic_t *count, int (*fail_fn)(atomic_t *)) +{ + if (likely(__mutex_cmpxchg_lock(count, 1, 0) == 1)) + return 1; + return 0; +} -#include <asm-generic/mutex-dec.h> +#endif diff --git a/arch/powerpc/include/asm/pci-bridge.h b/arch/powerpc/include/asm/pci-bridge.h index 9047af7baa6..fa8b3b72443 100644 --- a/arch/powerpc/include/asm/pci-bridge.h +++ b/arch/powerpc/include/asm/pci-bridge.h @@ -241,9 +241,6 @@ extern void pcibios_remove_pci_devices(struct pci_bus *bus); /** Discover new pci devices under this bus, and add them */ extern void pcibios_add_pci_devices(struct pci_bus *bus); -extern void pcibios_fixup_new_pci_devices(struct pci_bus *bus); - -extern int pcibios_remove_root_bus(struct pci_controller *phb); static inline struct pci_controller *pci_bus_to_host(const struct pci_bus *bus) { @@ -290,6 +287,7 @@ extern void pci_process_bridge_OF_ranges(struct pci_controller *hose, /* Allocate & free a PCI host bridge structure */ extern struct pci_controller *pcibios_alloc_controller(struct device_node *dev); extern void pcibios_free_controller(struct pci_controller *phb); +extern void pcibios_setup_phb_resources(struct pci_controller *hose); #ifdef CONFIG_PCI extern unsigned long pci_address_to_pio(phys_addr_t address); diff --git a/arch/powerpc/include/asm/pci.h b/arch/powerpc/include/asm/pci.h index 57a2a494886..1c721a632d8 100644 --- a/arch/powerpc/include/asm/pci.h +++ b/arch/powerpc/include/asm/pci.h @@ -204,15 +204,14 @@ static inline struct resource *pcibios_select_root(struct pci_dev *pdev, return root; } -extern void pcibios_setup_new_device(struct pci_dev *dev); - extern void pcibios_claim_one_bus(struct pci_bus *b); -extern void pcibios_allocate_bus_resources(struct pci_bus *bus); +extern void pcibios_finish_adding_to_bus(struct pci_bus *bus); extern void pcibios_resource_survey(void); extern struct pci_controller *init_phb_dynamic(struct device_node *dn); +extern int remove_phb_dynamic(struct pci_controller *phb); extern struct pci_dev *of_create_pci_dev(struct device_node *node, struct pci_bus *bus, int devfn); @@ -221,6 +220,7 @@ extern void of_scan_pci_bridge(struct device_node *node, struct pci_dev *dev); extern void of_scan_bus(struct device_node *node, struct pci_bus *bus); +extern void of_rescan_bus(struct device_node *node, struct pci_bus *bus); extern int pci_read_irq_line(struct pci_dev *dev); @@ -235,9 +235,8 @@ extern void pci_resource_to_user(const struct pci_dev *dev, int bar, const struct resource *rsrc, resource_size_t *start, resource_size_t *end); -extern void pcibios_do_bus_setup(struct pci_bus *bus); -extern void pcibios_fixup_of_probed_bus(struct pci_bus *bus); - +extern void pcibios_setup_bus_devices(struct pci_bus *bus); +extern void pcibios_setup_bus_self(struct pci_bus *bus); #endif /* __KERNEL__ */ #endif /* __ASM_POWERPC_PCI_H */ diff --git a/arch/powerpc/include/asm/ps3.h b/arch/powerpc/include/asm/ps3.h index f9e34c493cb..4299365590d 100644 --- a/arch/powerpc/include/asm/ps3.h +++ b/arch/powerpc/include/asm/ps3.h @@ -516,4 +516,7 @@ void ps3_sync_irq(int node); u32 ps3_get_hw_thread_id(int cpu); u64 ps3_get_spe_id(void *arg); +/* mutex synchronizing GPU accesses and video mode changes */ +extern struct mutex ps3_gpu_mutex; + #endif diff --git a/arch/powerpc/include/asm/ps3av.h b/arch/powerpc/include/asm/ps3av.h index 5aa22cffdbd..cd24ac16660 100644 --- a/arch/powerpc/include/asm/ps3av.h +++ b/arch/powerpc/include/asm/ps3av.h @@ -740,8 +740,4 @@ extern int ps3av_audio_mute(int); extern int ps3av_audio_mute_analog(int); extern int ps3av_dev_open(void); extern int ps3av_dev_close(void); -extern void ps3av_register_flip_ctl(void (*flip_ctl)(int on, void *data), - void *flip_data); -extern void ps3av_flip_ctl(int on); - #endif /* _ASM_POWERPC_PS3AV_H_ */ diff --git a/arch/powerpc/include/asm/smp.h b/arch/powerpc/include/asm/smp.h index 1866cec4f96..c25f73d1d84 100644 --- a/arch/powerpc/include/asm/smp.h +++ b/arch/powerpc/include/asm/smp.h @@ -81,6 +81,13 @@ extern int cpu_to_core_id(int cpu); #define PPC_MSG_CALL_FUNC_SINGLE 2 #define PPC_MSG_DEBUGGER_BREAK 3 +/* + * irq controllers that have dedicated ipis per message and don't + * need additional code in the action handler may use this + */ +extern int smp_request_message_ipi(int virq, int message); +extern const char *smp_ipi_name[]; + void smp_init_iSeries(void); void smp_init_pSeries(void); void smp_init_cell(void); diff --git a/arch/powerpc/include/asm/spinlock.h b/arch/powerpc/include/asm/spinlock.h index f56a843f470..36864364e60 100644 --- a/arch/powerpc/include/asm/spinlock.h +++ b/arch/powerpc/include/asm/spinlock.h @@ -277,7 +277,7 @@ static inline void __raw_read_unlock(raw_rwlock_t *rw) bne- 1b" : "=&r"(tmp) : "r"(&rw->lock) - : "cr0", "memory"); + : "cr0", "xer", "memory"); } static inline void __raw_write_unlock(raw_rwlock_t *rw) diff --git a/arch/powerpc/include/asm/synch.h b/arch/powerpc/include/asm/synch.h index 45963e80f55..28f6ddbff4c 100644 --- a/arch/powerpc/include/asm/synch.h +++ b/arch/powerpc/include/asm/synch.h @@ -5,6 +5,10 @@ #include <linux/stringify.h> #include <asm/feature-fixups.h> +#if defined(__powerpc64__) || defined(CONFIG_PPC_E500MC) +#define __SUBARCH_HAS_LWSYNC +#endif + #ifndef __ASSEMBLY__ extern unsigned int __start___lwsync_fixup, __stop___lwsync_fixup; extern void do_lwsync_fixups(unsigned long value, void *fixup_start, diff --git a/arch/powerpc/include/asm/system.h b/arch/powerpc/include/asm/system.h index d6648c14332..2a4be19a92c 100644 --- a/arch/powerpc/include/asm/system.h +++ b/arch/powerpc/include/asm/system.h @@ -23,15 +23,17 @@ * read_barrier_depends() prevents data-dependent loads being reordered * across this point (nop on PPC). * - * We have to use the sync instructions for mb(), since lwsync doesn't - * order loads with respect to previous stores. Lwsync is fine for - * rmb(), though. Note that rmb() actually uses a sync on 32-bit - * architectures. + * *mb() variants without smp_ prefix must order all types of memory + * operations with one another. sync is the only instruction sufficient + * to do this. * - * For wmb(), we use sync since wmb is used in drivers to order - * stores to system memory with respect to writes to the device. - * However, smp_wmb() can be a lighter-weight lwsync or eieio barrier - * on SMP since it is only used to order updates to system memory. + * For the smp_ barriers, ordering is for cacheable memory operations + * only. We have to use the sync instruction for smp_mb(), since lwsync + * doesn't order loads with respect to previous stores. Lwsync can be + * used for smp_rmb() and smp_wmb(). + * + * However, on CPUs that don't support lwsync, lwsync actually maps to a + * heavy-weight sync, so smp_wmb() can be a lighter-weight eieio. */ #define mb() __asm__ __volatile__ ("sync" : : : "memory") #define rmb() __asm__ __volatile__ ("sync" : : : "memory") @@ -45,14 +47,14 @@ #ifdef CONFIG_SMP #ifdef __SUBARCH_HAS_LWSYNC -# define SMPWMB lwsync +# define SMPWMB LWSYNC #else # define SMPWMB eieio #endif #define smp_mb() mb() -#define smp_rmb() rmb() -#define smp_wmb() __asm__ __volatile__ (__stringify(SMPWMB) : : :"memory") +#define smp_rmb() __asm__ __volatile__ (stringify_in_c(LWSYNC) : : :"memory") +#define smp_wmb() __asm__ __volatile__ (stringify_in_c(SMPWMB) : : :"memory") #define smp_read_barrier_depends() read_barrier_depends() #else #define smp_mb() barrier() diff --git a/arch/powerpc/include/asm/time.h b/arch/powerpc/include/asm/time.h index febd581ec9b..27ccb764fda 100644 --- a/arch/powerpc/include/asm/time.h +++ b/arch/powerpc/include/asm/time.h @@ -48,26 +48,6 @@ extern unsigned long ppc_proc_freq; extern unsigned long ppc_tb_freq; #define DEFAULT_TB_FREQ 125000000UL -/* - * By putting all of this stuff into a single struct we - * reduce the number of cache lines touched by do_gettimeofday. - * Both by collecting all of the data in one cache line and - * by touching only one TOC entry on ppc64. - */ -struct gettimeofday_vars { - u64 tb_to_xs; - u64 stamp_xsec; - u64 tb_orig_stamp; -}; - -struct gettimeofday_struct { - unsigned long tb_ticks_per_sec; - struct gettimeofday_vars vars[2]; - struct gettimeofday_vars * volatile varp; - unsigned var_idx; - unsigned tb_to_us; -}; - struct div_result { u64 result_high; u64 result_low; diff --git a/arch/powerpc/include/asm/vdso_datapage.h b/arch/powerpc/include/asm/vdso_datapage.h index f01393224b5..13c2c283e17 100644 --- a/arch/powerpc/include/asm/vdso_datapage.h +++ b/arch/powerpc/include/asm/vdso_datapage.h @@ -39,6 +39,7 @@ #ifndef __ASSEMBLY__ #include <linux/unistd.h> +#include <linux/time.h> #define SYSCALL_MAP_SIZE ((__NR_syscalls + 31) / 32) @@ -83,6 +84,7 @@ struct vdso_data { __u32 icache_log_block_size; /* L1 i-cache log block size */ __s32 wtom_clock_sec; /* Wall to monotonic clock */ __s32 wtom_clock_nsec; + struct timespec stamp_xtime; /* xtime as at tb_orig_stamp */ __u32 syscall_map_64[SYSCALL_MAP_SIZE]; /* map of syscalls */ __u32 syscall_map_32[SYSCALL_MAP_SIZE]; /* map of syscalls */ }; @@ -102,6 +104,7 @@ struct vdso_data { __u32 tz_dsttime; /* Type of dst correction 0x5C */ __s32 wtom_clock_sec; /* Wall to monotonic clock */ __s32 wtom_clock_nsec; + struct timespec stamp_xtime; /* xtime as at tb_orig_stamp */ __u32 syscall_map_32[SYSCALL_MAP_SIZE]; /* map of syscalls */ __u32 dcache_block_size; /* L1 d-cache block size */ __u32 icache_block_size; /* L1 i-cache block size */ |