91 lines
2.2 KiB
C
91 lines
2.2 KiB
C
#ifndef _ASM_SCORE_SYSTEM_H
|
|
#define _ASM_SCORE_SYSTEM_H
|
|
|
|
#include <linux/types.h>
|
|
#include <linux/irqflags.h>
|
|
|
|
struct pt_regs;
|
|
struct task_struct;
|
|
|
|
extern void *resume(void *last, void *next, void *next_ti);
|
|
|
|
#define switch_to(prev, next, last) \
|
|
do { \
|
|
(last) = resume(prev, next, task_thread_info(next)); \
|
|
} while (0)
|
|
|
|
#define finish_arch_switch(prev) do {} while (0)
|
|
|
|
typedef void (*vi_handler_t)(void);
|
|
extern unsigned long arch_align_stack(unsigned long sp);
|
|
|
|
#define mb() barrier()
|
|
#define rmb() barrier()
|
|
#define wmb() barrier()
|
|
#define smp_mb() barrier()
|
|
#define smp_rmb() barrier()
|
|
#define smp_wmb() barrier()
|
|
|
|
#define read_barrier_depends() do {} while (0)
|
|
#define smp_read_barrier_depends() do {} while (0)
|
|
|
|
#define set_mb(var, value) do {var = value; wmb(); } while (0)
|
|
|
|
#define __HAVE_ARCH_CMPXCHG 1
|
|
|
|
#include <asm-generic/cmpxchg-local.h>
|
|
|
|
#ifndef __ASSEMBLY__
|
|
|
|
struct __xchg_dummy { unsigned long a[100]; };
|
|
#define __xg(x) ((struct __xchg_dummy *)(x))
|
|
|
|
static inline
|
|
unsigned long __xchg(volatile unsigned long *m, unsigned long val)
|
|
{
|
|
unsigned long retval;
|
|
unsigned long flags;
|
|
|
|
local_irq_save(flags);
|
|
retval = *m;
|
|
*m = val;
|
|
local_irq_restore(flags);
|
|
return retval;
|
|
}
|
|
|
|
#define xchg(ptr, v) \
|
|
((__typeof__(*(ptr))) __xchg((unsigned long *)(ptr), \
|
|
(unsigned long)(v)))
|
|
|
|
static inline unsigned long __cmpxchg(volatile unsigned long *m,
|
|
unsigned long old, unsigned long new)
|
|
{
|
|
unsigned long retval;
|
|
unsigned long flags;
|
|
|
|
local_irq_save(flags);
|
|
retval = *m;
|
|
if (retval == old)
|
|
*m = new;
|
|
local_irq_restore(flags);
|
|
return retval;
|
|
}
|
|
|
|
#define cmpxchg(ptr, o, n) \
|
|
((__typeof__(*(ptr))) __cmpxchg((unsigned long *)(ptr), \
|
|
(unsigned long)(o), \
|
|
(unsigned long)(n)))
|
|
|
|
extern void __die(const char *, struct pt_regs *, const char *,
|
|
const char *, unsigned long) __attribute__((noreturn));
|
|
extern void __die_if_kernel(const char *, struct pt_regs *, const char *,
|
|
const char *, unsigned long);
|
|
|
|
#define die(msg, regs) \
|
|
__die(msg, regs, __FILE__ ":", __func__, __LINE__)
|
|
#define die_if_kernel(msg, regs) \
|
|
__die_if_kernel(msg, regs, __FILE__ ":", __func__, __LINE__)
|
|
|
|
#endif /* !__ASSEMBLY__ */
|
|
#endif /* _ASM_SCORE_SYSTEM_H */
|