do { \
if (cpu_has_dsp) \
__save_dsp(prev); \
- (last) = resume(prev, next, next->thread_info); \
+ (last) = resume(prev, next, task_thread_info(next)); \
if (cpu_has_dsp) \
__restore_dsp(current); \
} while(0)
-#define ROT_IN_PIECES \
- " .set noreorder \n" \
- " .set reorder \n"
+/*
+ * On SMP systems, when the scheduler does migration-cost autodetection,
+ * it needs a way to flush as much of the CPU's caches as possible.
+ *
+ * TODO: fill this in!
+ */
+static inline void sched_cacheflush(void)
+{
+}
static inline unsigned long __xchg_u32(volatile int * m, unsigned int val)
{
" .set mips3 \n"
" sc %2, %1 \n"
" beqzl %2, 1b \n"
- ROT_IN_PIECES
#ifdef CONFIG_SMP
" sync \n"
#endif
" move %2, %z4 \n"
" scd %2, %1 \n"
" beqzl %2, 1b \n"
- ROT_IN_PIECES
#ifdef CONFIG_SMP
" sync \n"
#endif
static inline unsigned long __xchg(unsigned long x, volatile void * ptr, int size)
{
switch (size) {
- case 4:
- return __xchg_u32(ptr, x);
- case 8:
- return __xchg_u64(ptr, x);
+ case 4:
+ return __xchg_u32(ptr, x);
+ case 8:
+ return __xchg_u64(ptr, x);
}
__xchg_called_with_bad_pointer();
return x;
" .set mips3 \n"
"1: ll %0, %2 # __cmpxchg_u32 \n"
" bne %0, %z3, 2f \n"
+ " .set mips0 \n"
" move $1, %z4 \n"
+ " .set mips3 \n"
" sc $1, %1 \n"
" beqzl $1, 1b \n"
- ROT_IN_PIECES
#ifdef CONFIG_SMP
" sync \n"
#endif
"2: \n"
" .set pop \n"
- : "=&r" (retval), "=m" (*m)
+ : "=&r" (retval), "=R" (*m)
: "R" (*m), "Jr" (old), "Jr" (new)
: "memory");
} else if (cpu_has_llsc) {
" .set mips3 \n"
"1: ll %0, %2 # __cmpxchg_u32 \n"
" bne %0, %z3, 2f \n"
+ " .set mips0 \n"
" move $1, %z4 \n"
+ " .set mips3 \n"
" sc $1, %1 \n"
" beqz $1, 1b \n"
#ifdef CONFIG_SMP
#endif
"2: \n"
" .set pop \n"
- : "=&r" (retval), "=m" (*m)
+ : "=&r" (retval), "=R" (*m)
: "R" (*m), "Jr" (old), "Jr" (new)
: "memory");
} else {
" move $1, %z4 \n"
" scd $1, %1 \n"
" beqzl $1, 1b \n"
- ROT_IN_PIECES
#ifdef CONFIG_SMP
" sync \n"
#endif
"2: \n"
" .set pop \n"
- : "=&r" (retval), "=m" (*m)
+ : "=&r" (retval), "=R" (*m)
: "R" (*m), "Jr" (old), "Jr" (new)
: "memory");
} else if (cpu_has_llsc) {
#endif
"2: \n"
" .set pop \n"
- : "=&r" (retval), "=m" (*m)
+ : "=&r" (retval), "=R" (*m)
: "R" (*m), "Jr" (old), "Jr" (new)
: "memory");
} else {
extern void *set_except_vector(int n, void *addr);
extern void per_cpu_trap_init(void);
-extern NORET_TYPE void __die(const char *, struct pt_regs *, const char *file,
- const char *func, unsigned long line) ATTRIB_NORET;
-extern void __die_if_kernel(const char *, struct pt_regs *, const char *file,
- const char *func, unsigned long line);
+extern NORET_TYPE void die(const char *, struct pt_regs *);
-#define die(msg, regs) \
- __die(msg, regs, __FILE__ ":", __FUNCTION__, __LINE__)
-#define die_if_kernel(msg, regs) \
- __die_if_kernel(msg, regs, __FILE__ ":", __FUNCTION__, __LINE__)
+static inline void die_if_kernel(const char *str, struct pt_regs *regs)
+{
+ if (unlikely(!user_mode(regs)))
+ die(str, regs);
+}
extern int stop_a_enabled;