From b334481ab76b2a9031aef5393b07de6d21a08244 Mon Sep 17 00:00:00 2001 From: Julien Thierry Date: Thu, 31 Jan 2019 14:58:56 +0000 Subject: arm64: gic-v3: Implement arch support for priority masking Implement architecture specific primitive allowing the GICv3 driver to use priorities to mask interrupts. Signed-off-by: Julien Thierry Suggested-by: Daniel Thompson Acked-by: Marc Zyngier Cc: Marc Zyngier Cc: Will Deacon Signed-off-by: Catalin Marinas --- arch/arm64/include/asm/arch_gicv3.h | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) (limited to 'arch/arm64/include/asm/arch_gicv3.h') diff --git a/arch/arm64/include/asm/arch_gicv3.h b/arch/arm64/include/asm/arch_gicv3.h index b5f8142bf802..14b41ddc68ba 100644 --- a/arch/arm64/include/asm/arch_gicv3.h +++ b/arch/arm64/include/asm/arch_gicv3.h @@ -22,6 +22,7 @@ #ifndef __ASSEMBLY__ +#include #include #include #include @@ -162,14 +163,13 @@ static inline bool gic_prio_masking_enabled(void) static inline void gic_pmr_mask_irqs(void) { - /* Should not get called yet. */ - WARN_ON_ONCE(true); + BUILD_BUG_ON(GICD_INT_DEF_PRI <= GIC_PRIO_IRQOFF); + gic_write_pmr(GIC_PRIO_IRQOFF); } static inline void gic_arch_enable_irqs(void) { - /* Should not get called yet. */ - WARN_ON_ONCE(true); + asm volatile ("msr daifclr, #2" : : : "memory"); } #endif /* __ASSEMBLY__ */ -- cgit v1.2.3-59-g8ed1b