diff --git a/arch/powerpc/include/asm/hw_irq.h b/arch/powerpc/include/asm/hw_irq.h index c7d82ff62a3346eb6b807d0bbbd06a5c85a760e4..eba60416536ec0955ff4a4131b4d788db2f25f9c 100644 --- a/arch/powerpc/include/asm/hw_irq.h +++ b/arch/powerpc/include/asm/hw_irq.h @@ -155,6 +155,8 @@ static inline unsigned long arch_local_irq_save(void) unsigned long flags = arch_local_save_flags(); #ifdef CONFIG_BOOKE asm volatile("wrteei 0" : : : "memory"); +#elif defined(CONFIG_PPC_8xx) + wrtspr(SPRN_EID); #else SET_MSR_EE(flags & ~MSR_EE); #endif @@ -165,6 +167,8 @@ static inline void arch_local_irq_disable(void) { #ifdef CONFIG_BOOKE asm volatile("wrteei 0" : : : "memory"); +#elif defined(CONFIG_PPC_8xx) + wrtspr(SPRN_EID); #else arch_local_irq_save(); #endif @@ -174,6 +178,8 @@ static inline void arch_local_irq_enable(void) { #ifdef CONFIG_BOOKE asm volatile("wrteei 1" : : : "memory"); +#elif defined(CONFIG_PPC_8xx) + wrtspr(SPRN_EIE); #else unsigned long msr = mfmsr(); SET_MSR_EE(msr | MSR_EE); diff --git a/arch/powerpc/include/asm/reg.h b/arch/powerpc/include/asm/reg.h index 9dddabc2fcedd1a61713f0a03fa3e10f25f601a5..b320c8fb045000553414978d726b74c10b6e64a0 100644 --- a/arch/powerpc/include/asm/reg.h +++ b/arch/powerpc/include/asm/reg.h @@ -1249,6 +1249,8 @@ static inline void mtmsr_isync(unsigned long val) : "r" ((unsigned long)(v)) \ : "memory") #endif +#define wrtspr(rn) asm volatile("mtspr " __stringify(rn) ",0" : \ + : : "memory") extern void msr_check_and_set(unsigned long bits); extern bool strict_msr_control; diff --git a/arch/powerpc/include/asm/reg_8xx.h b/arch/powerpc/include/asm/reg_8xx.h index 94d01f81e66877646faba091187ae981bfa0a457..0197e12f7d482512c2d7be8f8ee76c1c3935df73 100644 --- a/arch/powerpc/include/asm/reg_8xx.h +++ b/arch/powerpc/include/asm/reg_8xx.h @@ -25,6 +25,10 @@ #define SPRN_MD_RAM0 825 #define SPRN_MD_RAM1 826 +/* Special MSR manipulation registers */ +#define SPRN_EIE 80 /* External interrupt enable (EE=1, RI=1) */ +#define SPRN_EID 81 /* External interrupt disable (EE=0, RI=1) */ + /* Commands. Only the first few are available to the instruction cache. */ #define IDC_ENABLE 0x02000000 /* Cache enable */