-/*****************************************************************************/
-/*
- * interrupt control
- * - "disabled": run in IM1/2
- * - level 0 - GDB stub
- * - level 1 - virtual serial DMA (if present)
- * - level 5 - normal interrupt priority
- * - level 6 - timer interrupt
- * - "enabled": run in IM7
- */
-#ifdef CONFIG_MN10300_TTYSM
-#define MN10300_CLI_LEVEL EPSW_IM_2
-#else
-#define MN10300_CLI_LEVEL EPSW_IM_1
-#endif
-
-#define local_save_flags(x) \
-do { \
- typecheck(unsigned long, x); \
- asm volatile( \
- " mov epsw,%0 \n" \
- : "=d"(x) \
- ); \
-} while (0)
-
-#define local_irq_disable() \
-do { \
- asm volatile( \
- " and %0,epsw \n" \
- " or %1,epsw \n" \
- " nop \n" \
- " nop \n" \
- " nop \n" \
- : \
- : "i"(~EPSW_IM), "i"(EPSW_IE | MN10300_CLI_LEVEL) \
- ); \
-} while (0)
-
-#define local_irq_save(x) \
-do { \
- local_save_flags(x); \
- local_irq_disable(); \
-} while (0)
-
-/*
- * we make sure local_irq_enable() doesn't cause priority inversion
- */
-#ifndef __ASSEMBLY__
-
-extern unsigned long __mn10300_irq_enabled_epsw;
-
-#endif
-
-#define local_irq_enable() \
-do { \
- unsigned long tmp; \
- \
- asm volatile( \
- " mov epsw,%0 \n" \
- " and %1,%0 \n" \
- " or %2,%0 \n" \
- " mov %0,epsw \n" \
- : "=&d"(tmp) \
- : "i"(~EPSW_IM), "r"(__mn10300_irq_enabled_epsw) \
- : "cc" \
- ); \
-} while (0)
-
-#define local_irq_restore(x) \
-do { \
- typecheck(unsigned long, x); \
- asm volatile( \
- " mov %0,epsw \n" \
- " nop \n" \
- " nop \n" \
- " nop \n" \
- : \
- : "d"(x) \
- : "memory", "cc" \
- ); \
-} while (0)
-
-#define irqs_disabled() \
-({ \
- unsigned long flags; \
- local_save_flags(flags); \
- (flags & EPSW_IM) <= MN10300_CLI_LEVEL; \
-})
-
-/* hook to save power by halting the CPU
- * - called from the idle loop
- * - must reenable interrupts (which takes three instruction cycles to complete)
- */
-#define safe_halt() \
-do { \
- asm volatile(" or %0,epsw \n" \
- " nop \n" \
- " nop \n" \
- " bset %2,(%1) \n" \
- : \
- : "i"(EPSW_IE|EPSW_IM), "n"(&CPUM), "i"(CPUM_SLEEP)\
- : "cc" \
- ); \
-} while (0)
-
-#define STI or EPSW_IE|EPSW_IM,epsw
-#define CLI and ~EPSW_IM,epsw; or EPSW_IE|MN10300_CLI_LEVEL,epsw; nop; nop; nop
-