diff options
| author |   Madhavan Srinivasan <maddy@linux.vnet.ibm.com> | 2017-12-20 09:25:42 +0530 |
|---|---|---|
| committer |   Michael Ellerman <mpe@ellerman.id.au> | 2018-01-19 22:36:56 +1100 |
| commit | c2e480ba822718190e58849b79a76db13c3dac18 (patch) | |
| tree | f76fba08014065ce9ed6b17fc4d59a29424749ba /arch/powerpc/include/asm/hw_irq.h | |
| parent | powerpc: Hard wire PT_SOFTE value to 1 in ptrace & signals (diff) | |
| download | linux-dev-c2e480ba822718190e58849b79a76db13c3dac18.tar.xz linux-dev-c2e480ba822718190e58849b79a76db13c3dac18.zip | |
powerpc/64: Add #defines for paca->soft_enabled flags
Two #defines IRQS_ENABLED and IRQS_DISABLED are added to be used when
updating paca->soft_enabled. Replace the hardcoded values used when
updating paca->soft_enabled with IRQ_(EN|DIS)ABLED #define. No logic
change.
Reviewed-by: Nicholas Piggin <npiggin@gmail.com>
Signed-off-by: Madhavan Srinivasan <maddy@linux.vnet.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'arch/powerpc/include/asm/hw_irq.h')
| -rw-r--r-- | arch/powerpc/include/asm/hw_irq.h | 21 |
1 files changed, 14 insertions, 7 deletions
diff --git a/arch/powerpc/include/asm/hw_irq.h b/arch/powerpc/include/asm/hw_irq.h index 3818fa0164f0..7c2717dfd89a 100644 --- a/arch/powerpc/include/asm/hw_irq.h +++ b/arch/powerpc/include/asm/hw_irq.h @@ -28,6 +28,12 @@ #define PACA_IRQ_EE_EDGE 0x10 /* BookE only */ #define PACA_IRQ_HMI 0x20 +/* + * flags for paca->soft_enabled + */ +#define IRQS_ENABLED 1 +#define IRQS_DISABLED 0 + #endif /* CONFIG_PPC64 */ #ifndef __ASSEMBLY__ @@ -60,9 +66,10 @@ static inline unsigned long arch_local_irq_disable(void) unsigned long flags, zero; asm volatile( - "li %1,0; lbz %0,%2(13); stb %1,%2(13)" + "li %1,%3; lbz %0,%2(13); stb %1,%2(13)" : "=r" (flags), "=&r" (zero) - : "i" (offsetof(struct paca_struct, soft_enabled)) + : "i" (offsetof(struct paca_struct, soft_enabled)),\ + "i" (IRQS_DISABLED) : "memory"); return flags; @@ -72,7 +79,7 @@ extern void arch_local_irq_restore(unsigned long); static inline void arch_local_irq_enable(void) { - arch_local_irq_restore(1); + arch_local_irq_restore(IRQS_ENABLED); } static inline unsigned long arch_local_irq_save(void) @@ -82,7 +89,7 @@ static inline unsigned long arch_local_irq_save(void) static inline bool arch_irqs_disabled_flags(unsigned long flags) { - return flags == 0; + return flags == IRQS_DISABLED; } static inline bool arch_irqs_disabled(void) @@ -102,9 +109,9 @@ static inline bool arch_irqs_disabled(void) u8 _was_enabled; \ __hard_irq_disable(); \ _was_enabled = local_paca->soft_enabled; \ - local_paca->soft_enabled = 0; \ + local_paca->soft_enabled = IRQS_DISABLED;\ local_paca->irq_happened |= PACA_IRQ_HARD_DIS; \ - if (_was_enabled) \ + if (_was_enabled == IRQS_ENABLED) \ trace_hardirqs_off(); \ } while(0) @@ -127,7 +134,7 @@ static inline void may_hard_irq_enable(void) static inline bool arch_irq_disabled_regs(struct pt_regs *regs) { - return !regs->softe; + return (regs->softe == IRQS_DISABLED); } extern bool prep_irq_for_idle(void); |