diff options
Diffstat (limited to 'include/asm-s390/system.h')
| -rw-r--r-- | include/asm-s390/system.h | 38 |
1 files changed, 17 insertions, 21 deletions
diff --git a/include/asm-s390/system.h b/include/asm-s390/system.h index 81514d76edcf..864cae7e1fd6 100644 --- a/include/asm-s390/system.h +++ b/include/asm-s390/system.h @@ -16,6 +16,7 @@ #include <asm/types.h> #include <asm/ptrace.h> #include <asm/setup.h> +#include <asm/processor.h> #ifdef __KERNEL__ @@ -103,29 +104,16 @@ static inline void restore_access_regs(unsigned int *acrs) prev = __switch_to(prev,next); \ } while (0) -#define prepare_arch_switch(rq, next) do { } while(0) -#define task_running(rq, p) ((rq)->curr == (p)) - #ifdef CONFIG_VIRT_CPU_ACCOUNTING extern void account_user_vtime(struct task_struct *); extern void account_system_vtime(struct task_struct *); +#endif -#define finish_arch_switch(rq, prev) do { \ +#define finish_arch_switch(prev) do { \ set_fs(current->thread.mm_segment); \ - spin_unlock(&(rq)->lock); \ account_system_vtime(prev); \ - local_irq_enable(); \ } while (0) -#else - -#define finish_arch_switch(rq, prev) do { \ - set_fs(current->thread.mm_segment); \ - spin_unlock_irq(&(rq)->lock); \ -} while (0) - -#endif - #define nop() __asm__ __volatile__ ("nop") #define xchg(ptr,x) \ @@ -331,9 +319,6 @@ __cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size) #ifdef __s390x__ -#define __load_psw(psw) \ - __asm__ __volatile__("lpswe 0(%0)" : : "a" (&psw), "m" (psw) : "cc" ); - #define __ctl_load(array, low, high) ({ \ typedef struct { char _[sizeof(array)]; } addrtype; \ __asm__ __volatile__ ( \ @@ -390,9 +375,6 @@ __cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size) #else /* __s390x__ */ -#define __load_psw(psw) \ - __asm__ __volatile__("lpsw 0(%0)" : : "a" (&psw) : "cc" ); - #define __ctl_load(array, low, high) ({ \ typedef struct { char _[sizeof(array)]; } addrtype; \ __asm__ __volatile__ ( \ @@ -451,6 +433,20 @@ __cmpxchg(volatile void *ptr, unsigned long old, unsigned long new, int size) /* For spinlocks etc */ #define local_irq_save(x) ((x) = local_irq_disable()) +/* + * Use to set psw mask except for the first byte which + * won't be changed by this function. + */ +static inline void +__set_psw_mask(unsigned long mask) +{ + local_save_flags(mask); + __load_psw_mask(mask); +} + +#define local_mcck_enable() __set_psw_mask(PSW_KERNEL_BITS) +#define local_mcck_disable() __set_psw_mask(PSW_KERNEL_BITS & ~PSW_MASK_MCHECK) + #ifdef CONFIG_SMP extern void smp_ctl_set_bit(int cr, int bit); |
