diff options
Diffstat (limited to 'sys/alpha/include/cpu.h')
| -rw-r--r-- | sys/alpha/include/cpu.h | 42 |
1 files changed, 13 insertions, 29 deletions
diff --git a/sys/alpha/include/cpu.h b/sys/alpha/include/cpu.h index 8ecaaf3..3e0696f 100644 --- a/sys/alpha/include/cpu.h +++ b/sys/alpha/include/cpu.h @@ -62,45 +62,29 @@ struct clockframe { struct trapframe cf_tf; }; -#define CLKF_USERMODE(framep) \ - (((framep)->cf_tf.tf_regs[FRAME_PS] & ALPHA_PSL_USERMODE) != 0) -#define CLKF_PC(framep) ((framep)->cf_tf.tf_regs[FRAME_PC]) -#define CLKF_INTR(framep) (curproc->p_intr_nesting_level >= 2) - -/* - * Preempt the current process if in interrupt from user mode, - * or after the current trap/syscall if in system mode. - */ -#define need_resched() do { want_resched = 1; aston(); } while (0) +#define TRAPF_USERMODE(framep) \ + (((framep)->tf_regs[FRAME_PS] & ALPHA_PSL_USERMODE) != 0) +#define TRAPF_PC(framep) ((framep)->tf_regs[FRAME_PC]) -#define resched_wanted() want_resched +#define CLKF_USERMODE(framep) TRAPF_USERMODE(&(framep)->cf_tf) +#define CLKF_PC(framep) TRAPF_PC(&(framep)->cf_tf) +#define CLKF_INTR(framep) (curproc->p_intr_nesting_level >= 2) /* - * Give a profiling tick to the current process when the user profiling - * buffer pages are invalid. On the hp300, request an ast to send us - * through trap, marking the proc as needing a profiling tick. + * Arrange to handle pending profiling ticks before returning to user mode. + * + * XXX this is now poorly named and implemented. It used to handle only a + * single tick and the PS_OWEUPC flag served as a counter. Now there is a + * counter in the proc table and flag isn't really necessary. */ #define need_proftick(p) do { \ - mtx_lock_spin(&sched_lock); \ + mtx_lock_spin(&sched_lock); \ (p)->p_sflag |= PS_OWEUPC; \ - mtx_unlock_spin(&sched_lock); \ aston(); \ + mtx_unlock_spin(&sched_lock); \ } while (0) /* - * Notify the current process (p) that it has a signal pending, - * process as soon as possible. - */ -#define signotify(p) aston() - -#define aston() PCPU_SET(astpending, 1) - -#ifdef _KERNEL -extern u_int32_t want_resched; /* resched() was called */ -#endif - - -/* * CTL_MACHDEP definitions. */ #define CPU_CONSDEV 1 /* dev_t: console terminal device */ |
