#define _ASM_POWERPC_SYSTEM_H
#include <linux/kernel.h>
+#include <linux/irqflags.h>
#include <asm/hw_irq.h>
*
* 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 eieio barrier on
- * SMP since it is only used to order updates to system memory.
+ * 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.
*/
#define mb() __asm__ __volatile__ ("sync" : : : "memory")
-#define rmb() __asm__ __volatile__ (__stringify(LWSYNC) : : : "memory")
+#define rmb() __asm__ __volatile__ ("sync" : : : "memory")
#define wmb() __asm__ __volatile__ ("sync" : : : "memory")
#define read_barrier_depends() do { } while(0)
#define set_mb(var, value) do { var = value; mb(); } while (0)
#ifdef __KERNEL__
+#define AT_VECTOR_SIZE_ARCH 6 /* entries in ARCH_DLINFO */
#ifdef CONFIG_SMP
+
+#ifdef __SUBARCH_HAS_LWSYNC
+# define SMPWMB lwsync
+#else
+# define SMPWMB eieio
+#endif
+
#define smp_mb() mb()
#define smp_rmb() rmb()
-#define smp_wmb() eieio()
+#define smp_wmb() __asm__ __volatile__ (__stringify(SMPWMB) : : :"memory")
#define smp_read_barrier_depends() read_barrier_depends()
#else
#define smp_mb() barrier()
struct task_struct;
struct pt_regs;
-#ifdef CONFIG_DEBUGGER
+#if defined(CONFIG_DEBUGGER) || defined(CONFIG_KEXEC)
extern int (*__debugger)(struct pt_regs *regs);
extern int (*__debugger_ipi)(struct pt_regs *regs);
extern void giveup_altivec(struct task_struct *);
extern void load_up_altivec(struct task_struct *);
extern int emulate_altivec(struct pt_regs *);
+extern void __giveup_vsx(struct task_struct *);
+extern void giveup_vsx(struct task_struct *);
extern void enable_kernel_spe(void);
extern void giveup_spe(struct task_struct *);
extern void load_up_spe(struct task_struct *);
}
#endif
+#ifdef CONFIG_VSX
+extern void flush_vsx_to_thread(struct task_struct *);
+#else
+static inline void flush_vsx_to_thread(struct task_struct *t)
+{
+}
+#endif
+
#ifdef CONFIG_SPE
extern void flush_spe_to_thread(struct task_struct *);
#else
extern void bad_page_fault(struct pt_regs *, unsigned long, int);
extern int die(const char *, struct pt_regs *, long);
extern void _exception(int, struct pt_regs *, int, unsigned long);
+extern void _nmask_and_or_msr(unsigned long nmask, unsigned long or_val);
+
#ifdef CONFIG_BOOKE_WDT
extern u32 booke_wdt_enabled;
extern u32 booke_wdt_period;
extern unsigned int rtas_data;
extern int mem_init_done; /* set on boot once kmalloc can be called */
+extern int init_bootmem_done; /* set on !NUMA once bootmem is available */
extern unsigned long memory_limit;
extern unsigned long klimit;
+extern void *alloc_maybe_bootmem(size_t size, gfp_t mask);
+extern void *zalloc_maybe_bootmem(size_t size, gfp_t mask);
+
extern int powersave_nap; /* set if nap mode can be used in idle loop */
/*
* Changes the memory location '*ptr' to be val and returns
* the previous value stored there.
*/
-static __inline__ unsigned long
+static __always_inline unsigned long
__xchg_u32(volatile void *p, unsigned long val)
{
unsigned long prev;
* Changes the memory location '*ptr' to be val and returns
* the previous value stored there.
*/
-static __inline__ unsigned long
+static __always_inline unsigned long
__xchg_u32_local(volatile void *p, unsigned long val)
{
unsigned long prev;
}
#ifdef CONFIG_PPC64
-static __inline__ unsigned long
+static __always_inline unsigned long
__xchg_u64(volatile void *p, unsigned long val)
{
unsigned long prev;
return prev;
}
-static __inline__ unsigned long
+static __always_inline unsigned long
__xchg_u64_local(volatile void *p, unsigned long val)
{
unsigned long prev;
*/
extern void __xchg_called_with_bad_pointer(void);
-static __inline__ unsigned long
+static __always_inline unsigned long
__xchg(volatile void *ptr, unsigned long x, unsigned int size)
{
switch (size) {
return x;
}
-static __inline__ unsigned long
+static __always_inline unsigned long
__xchg_local(volatile void *ptr, unsigned long x, unsigned int size)
{
switch (size) {
*/
#define __HAVE_ARCH_CMPXCHG 1
-static __inline__ unsigned long
+static __always_inline unsigned long
__cmpxchg_u32(volatile unsigned int *p, unsigned long old, unsigned long new)
{
unsigned int prev;
return prev;
}
-static __inline__ unsigned long
+static __always_inline unsigned long
__cmpxchg_u32_local(volatile unsigned int *p, unsigned long old,
unsigned long new)
{
}
#ifdef CONFIG_PPC64
-static __inline__ unsigned long
+static __always_inline unsigned long
__cmpxchg_u64(volatile unsigned long *p, unsigned long old, unsigned long new)
{
unsigned long prev;
return prev;
}
-static __inline__ unsigned long
+static __always_inline unsigned long
__cmpxchg_u64_local(volatile unsigned long *p, unsigned long old,
unsigned long new)
{
if something tries to do an invalid cmpxchg(). */
extern void __cmpxchg_called_with_bad_pointer(void);
-static __inline__ unsigned long
+static __always_inline unsigned long
__cmpxchg(volatile void *ptr, unsigned long old, unsigned long new,
unsigned int size)
{
return old;
}
-static __inline__ unsigned long
+static __always_inline unsigned long
__cmpxchg_local(volatile void *ptr, unsigned long old, unsigned long new,
unsigned int size)
{
return old;
}
-#define cmpxchg(ptr,o,n) \
+#define cmpxchg(ptr, o, n) \
({ \
__typeof__(*(ptr)) _o_ = (o); \
__typeof__(*(ptr)) _n_ = (n); \
})
-#define cmpxchg_local(ptr,o,n) \
+#define cmpxchg_local(ptr, o, n) \
({ \
__typeof__(*(ptr)) _o_ = (o); \
__typeof__(*(ptr)) _n_ = (n); \
*/
#define NET_IP_ALIGN 0
#define NET_SKB_PAD L1_CACHE_BYTES
+
+#define cmpxchg64(ptr, o, n) \
+ ({ \
+ BUILD_BUG_ON(sizeof(*(ptr)) != 8); \
+ cmpxchg((ptr), (o), (n)); \
+ })
+#define cmpxchg64_local(ptr, o, n) \
+ ({ \
+ BUILD_BUG_ON(sizeof(*(ptr)) != 8); \
+ cmpxchg_local((ptr), (o), (n)); \
+ })
+#else
+#include <asm-generic/cmpxchg-local.h>
+#define cmpxchg64_local(ptr, o, n) __cmpxchg64_local_generic((ptr), (o), (n))
#endif
#define arch_align_stack(x) (x)
#define PTRRELOC(x) ((typeof(x)) add_reloc_offset((unsigned long)(x)))
-static inline void create_instruction(unsigned long addr, unsigned int instr)
-{
- unsigned int *p;
- p = (unsigned int *)addr;
- *p = instr;
- asm ("dcbst 0, %0; sync; icbi 0,%0; sync; isync" : : "r" (p));
-}
-
-/* Flags for create_branch:
- * "b" == create_branch(addr, target, 0);
- * "ba" == create_branch(addr, target, BRANCH_ABSOLUTE);
- * "bl" == create_branch(addr, target, BRANCH_SET_LINK);
- * "bla" == create_branch(addr, target, BRANCH_ABSOLUTE | BRANCH_SET_LINK);
- */
-#define BRANCH_SET_LINK 0x1
-#define BRANCH_ABSOLUTE 0x2
-
-static inline void create_branch(unsigned long addr,
- unsigned long target, int flags)
-{
- unsigned int instruction;
-
- if (! (flags & BRANCH_ABSOLUTE))
- target = target - addr;
-
- /* Mask out the flags and target, so they don't step on each other. */
- instruction = 0x48000000 | (flags & 0x3) | (target & 0x03FFFFFC);
-
- create_instruction(addr, instruction);
-}
-
-static inline void create_function_call(unsigned long addr, void * func)
-{
- unsigned long func_addr;
-
-#ifdef CONFIG_PPC64
- /*
- * On PPC64 the function pointer actually points to the function's
- * descriptor. The first entry in the descriptor is the address
- * of the function text.
- */
- func_addr = *(unsigned long *)func;
-#else
- func_addr = (unsigned long)func;
-#endif
- create_branch(addr, func_addr, BRANCH_SET_LINK);
-}
-
#ifdef CONFIG_VIRT_CPU_ACCOUNTING
extern void account_system_vtime(struct task_struct *);
#endif
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff