diff options
| author | Madhavan Srinivasan <maddy@linux.vnet.ibm.com> | 2017-12-20 09:25:47 +0530 |
|---|---|---|
| committer | Michael Ellerman <mpe@ellerman.id.au> | 2018-01-19 22:36:59 +1100 |
| commit | a67c543aacb247a74e9d48fd9fde6d8369cea10b (patch) | |
| tree | cbd5aaa0986a4372c725c943f5ddc449883d59f0 /arch/powerpc/include/asm/hw_irq.h | |
| parent | e0b5687bed13ddbf99985d77910b9adfd429bf12 (diff) | |
powerpc/64: Implement and use soft_enabled_set_return API
Add a new wrapper function, soft_enabled_set_return(), added to do the
paca->soft_enabled updates requiring a set-return.
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 | 25 |
1 files changed, 15 insertions, 10 deletions
diff --git a/arch/powerpc/include/asm/hw_irq.h b/arch/powerpc/include/asm/hw_irq.h index f9791884af08..c1764fabf181 100644 --- a/arch/powerpc/include/asm/hw_irq.h +++ b/arch/powerpc/include/asm/hw_irq.h @@ -76,6 +76,20 @@ static inline notrace void soft_enabled_set(unsigned long enable) : "memory"); } +static inline notrace unsigned long soft_enabled_set_return(unsigned long enable) +{ + unsigned long flags; + + asm volatile( + "lbz %0,%1(13); stb %2,%1(13)" + : "=&r" (flags) + : "i" (offsetof(struct paca_struct, soft_enabled)), + "r" (enable) + : "memory"); + + return flags; +} + static inline unsigned long arch_local_save_flags(void) { return soft_enabled_return(); @@ -95,16 +109,7 @@ static inline void arch_local_irq_enable(void) static inline unsigned long arch_local_irq_save(void) { - unsigned long flags; - - asm volatile( - "lbz %0,%1(13); stb %2,%1(13)" - : "=&r" (flags) - : "i" (offsetof(struct paca_struct, soft_enabled)), - "r" (IRQS_DISABLED) - : "memory"); - - return flags; + return soft_enabled_set_return(IRQS_DISABLED); } static inline bool arch_irqs_disabled_flags(unsigned long flags) |