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| author | Julien Thierry <julien.thierry@arm.com> | 2019-01-31 14:58:56 +0000 |
|---|---|---|
| committer | Catalin Marinas <catalin.marinas@arm.com> | 2019-02-06 10:05:21 +0000 |
| commit | b334481ab76b2a9031aef5393b07de6d21a08244 (patch) | |
| tree | 276acabef4127dc9b982ec9255f31df7a2c3debe /arch/arm64 | |
| parent | e79321883842ca7b77d8a58fe8303e8da35c085e (diff) | |
| download | linux-0-day-b334481ab76b2a9031aef5393b07de6d21a08244.tar.gz linux-0-day-b334481ab76b2a9031aef5393b07de6d21a08244.tar.xz | |
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 <julien.thierry@arm.com>
Suggested-by: Daniel Thompson <daniel.thompson@linaro.org>
Acked-by: Marc Zyngier <marc.zyngier@arm.com>
Cc: Marc Zyngier <marc.zyngier@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
Diffstat (limited to 'arch/arm64')
| -rw-r--r-- | arch/arm64/include/asm/arch_gicv3.h | 8 |
1 files changed, 4 insertions, 4 deletions
diff --git a/arch/arm64/include/asm/arch_gicv3.h b/arch/arm64/include/asm/arch_gicv3.h index b5f8142bf8021..14b41ddc68bac 100644 --- a/arch/arm64/include/asm/arch_gicv3.h +++ b/arch/arm64/include/asm/arch_gicv3.h @@ -22,6 +22,7 @@ #ifndef __ASSEMBLY__ +#include <linux/irqchip/arm-gic-common.h> #include <linux/stringify.h> #include <asm/barrier.h> #include <asm/cacheflush.h> @@ -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__ */ |