diff options
| -rw-r--r-- | arch/sparc/Kconfig.debug | 4 | ||||
| -rw-r--r-- | arch/sparc/kernel/irq.c | 12 | ||||
| -rw-r--r-- | include/asm-sparc/irqflags.h | 39 | ||||
| -rw-r--r-- | include/asm-sparc/system.h | 22 |
4 files changed, 51 insertions, 26 deletions
diff --git a/arch/sparc/Kconfig.debug b/arch/sparc/Kconfig.debug index 120f6b52934..87dd496f15e 100644 --- a/arch/sparc/Kconfig.debug +++ b/arch/sparc/Kconfig.debug @@ -1,5 +1,9 @@ menu "Kernel hacking" +config TRACE_IRQFLAGS_SUPPORT + bool + default y + source "lib/Kconfig.debug" config DEBUG_STACK_USAGE diff --git a/arch/sparc/kernel/irq.c b/arch/sparc/kernel/irq.c index b76dc03fc31..722d67d3296 100644 --- a/arch/sparc/kernel/irq.c +++ b/arch/sparc/kernel/irq.c @@ -56,7 +56,7 @@ #define SMP_NOP2 #define SMP_NOP3 #endif /* SMP */ -unsigned long __local_irq_save(void) +unsigned long __raw_local_irq_save(void) { unsigned long retval; unsigned long tmp; @@ -74,7 +74,7 @@ unsigned long __local_irq_save(void) return retval; } -void local_irq_enable(void) +void raw_local_irq_enable(void) { unsigned long tmp; @@ -89,7 +89,7 @@ void local_irq_enable(void) : "memory"); } -void local_irq_restore(unsigned long old_psr) +void raw_local_irq_restore(unsigned long old_psr) { unsigned long tmp; @@ -105,9 +105,9 @@ void local_irq_restore(unsigned long old_psr) : "memory"); } -EXPORT_SYMBOL(__local_irq_save); -EXPORT_SYMBOL(local_irq_enable); -EXPORT_SYMBOL(local_irq_restore); +EXPORT_SYMBOL(__raw_local_irq_save); +EXPORT_SYMBOL(raw_local_irq_enable); +EXPORT_SYMBOL(raw_local_irq_restore); /* * Dave Redman (djhr@tadpole.co.uk) diff --git a/include/asm-sparc/irqflags.h b/include/asm-sparc/irqflags.h new file mode 100644 index 00000000000..db398fb3282 --- /dev/null +++ b/include/asm-sparc/irqflags.h @@ -0,0 +1,39 @@ +/* + * include/asm-sparc/irqflags.h + * + * IRQ flags handling + * + * This file gets included from lowlevel asm headers too, to provide + * wrapped versions of the local_irq_*() APIs, based on the + * raw_local_irq_*() functions from the lowlevel headers. + */ +#ifndef _ASM_IRQFLAGS_H +#define _ASM_IRQFLAGS_H + +#ifndef __ASSEMBLY__ + +extern void raw_local_irq_restore(unsigned long); +extern unsigned long __raw_local_irq_save(void); +extern void raw_local_irq_enable(void); + +static inline unsigned long getipl(void) +{ + unsigned long retval; + + __asm__ __volatile__("rd %%psr, %0" : "=r" (retval)); + return retval; +} + +#define raw_local_save_flags(flags) ((flags) = getipl()) +#define raw_local_irq_save(flags) ((flags) = __raw_local_irq_save()) +#define raw_local_irq_disable() ((void) __raw_local_irq_save()) +#define raw_irqs_disabled() ((getipl() & PSR_PIL) != 0) + +static inline int raw_irqs_disabled_flags(unsigned long flags) +{ + return ((flags & PSR_PIL) != 0); +} + +#endif /* (__ASSEMBLY__) */ + +#endif /* !(_ASM_IRQFLAGS_H) */ diff --git a/include/asm-sparc/system.h b/include/asm-sparc/system.h index d1a2572e3f5..8c259de0261 100644 --- a/include/asm-sparc/system.h +++ b/include/asm-sparc/system.h @@ -15,6 +15,8 @@ #ifndef __ASSEMBLY__ +#include <linux/irqflags.h> + /* * Sparc (general) CPU types */ @@ -164,26 +166,6 @@ extern void fpsave(unsigned long *fpregs, unsigned long *fsr, "o0", "o1", "o2", "o3", "o7"); \ } while(0) -/* - * Changing the IRQ level on the Sparc. - */ -extern void local_irq_restore(unsigned long); -extern unsigned long __local_irq_save(void); -extern void local_irq_enable(void); - -static inline unsigned long getipl(void) -{ - unsigned long retval; - - __asm__ __volatile__("rd %%psr, %0" : "=r" (retval)); - return retval; -} - -#define local_save_flags(flags) ((flags) = getipl()) -#define local_irq_save(flags) ((flags) = __local_irq_save()) -#define local_irq_disable() ((void) __local_irq_save()) -#define irqs_disabled() ((getipl() & PSR_PIL) != 0) - /* XXX Change this if we ever use a PSO mode kernel. */ #define mb() __asm__ __volatile__ ("" : : : "memory") #define rmb() mb() |