diff options
| author | Mike Frysinger <vapier.adi@gmail.com> | 2008-11-18 17:48:22 +0800 |
|---|---|---|
| committer | Bryan Wu <cooloney@kernel.org> | 2008-11-18 17:48:22 +0800 |
| commit | b60705765a635728187e5cea5f36914886675013 (patch) | |
| tree | 400a8fd966f117140511bf4606f96084c208c14f /arch/blackfin/include/asm/irq.h | |
| parent | b1271d31a59e73a70284c2cdcbe2b0589f6479c7 (diff) | |
Blackfin arch: move out irq related functions
move irq related functions into asm/irq.h and out of the mondo asm/system.h
Signed-off-by: Mike Frysinger <vapier.adi@gmail.com>
Signed-off-by: Bryan Wu <cooloney@kernel.org>
Diffstat (limited to 'arch/blackfin/include/asm/irq.h')
| -rw-r--r-- | arch/blackfin/include/asm/irq.h | 92 |
1 files changed, 91 insertions, 1 deletions
diff --git a/arch/blackfin/include/asm/irq.h b/arch/blackfin/include/asm/irq.h index 9377816fa18..e43c20583fc 100644 --- a/arch/blackfin/include/asm/irq.h +++ b/arch/blackfin/include/asm/irq.h @@ -19,11 +19,101 @@ /* SYS_IRQS and NR_IRQS are defined in <mach-bf5xx/irq.h>*/ #include <mach/irq.h> -#include <asm/ptrace.h> +#include <asm/pda.h> +#include <asm/processor.h> static __inline__ int irq_canonicalize(int irq) { return irq; } +/* + * Interrupt configuring macros. + */ +#define local_irq_disable() \ + do { \ + int __tmp_dummy; \ + __asm__ __volatile__( \ + "cli %0;" \ + : "=d" (__tmp_dummy) \ + ); \ + } while (0) + +#if ANOMALY_05000244 && defined(CONFIG_BFIN_ICACHE) +# define NOP_PAD_ANOMALY_05000244 "nop; nop;" +#else +# define NOP_PAD_ANOMALY_05000244 +#endif + +#ifdef CONFIG_SMP +/* Forward decl needed due to cdef inter dependencies */ +static inline uint32_t __pure bfin_dspid(void); +# define blackfin_core_id() (bfin_dspid() & 0xff) +# define irq_flags cpu_pda[blackfin_core_id()].imask +#else +extern unsigned long irq_flags; +#endif + +#define local_irq_enable() \ + __asm__ __volatile__( \ + "sti %0;" \ + : \ + : "d" (irq_flags) \ + ) + +#define idle_with_irq_disabled() \ + __asm__ __volatile__( \ + NOP_PAD_ANOMALY_05000244 \ + ".align 8;" \ + "sti %0;" \ + "idle;" \ + : \ + : "d" (irq_flags) \ + ) + +#ifdef CONFIG_DEBUG_HWERR +# define __save_and_cli(x) \ + __asm__ __volatile__( \ + "cli %0;" \ + "sti %1;" \ + : "=&d" (x) \ + : "d" (0x3F) \ + ) +#else +# define __save_and_cli(x) \ + __asm__ __volatile__( \ + "cli %0;" \ + : "=&d" (x) \ + ) +#endif + +#define local_save_flags(x) \ + __asm__ __volatile__( \ + "cli %0;" \ + "sti %0;" \ + : "=d" (x) \ + ) + +#ifdef CONFIG_DEBUG_HWERR +#define irqs_enabled_from_flags(x) (((x) & ~0x3f) != 0) +#else +#define irqs_enabled_from_flags(x) ((x) != 0x1f) +#endif + +#define local_irq_restore(x) \ + do { \ + if (irqs_enabled_from_flags(x)) \ + local_irq_enable(); \ + } while (0) + +/* For spinlocks etc */ +#define local_irq_save(x) __save_and_cli(x) + +#define irqs_disabled() \ +({ \ + unsigned long flags; \ + local_save_flags(flags); \ + !irqs_enabled_from_flags(flags); \ +}) + #endif /* _BFIN_IRQ_H_ */ |