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authorJulien Thierry <julien.thierry@arm.com>2019-01-31 17:58:56 +0300
committerCatalin Marinas <catalin.marinas@arm.com>2019-02-06 13:05:21 +0300
commitb334481ab76b2a9031aef5393b07de6d21a08244 (patch)
tree276acabef4127dc9b982ec9255f31df7a2c3debe /arch/arm64/include/asm/arch_gicv3.h
parente79321883842ca7b77d8a58fe8303e8da35c085e (diff)
downloadlinux-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/include/asm/arch_gicv3.h')
-rw-r--r--arch/arm64/include/asm/arch_gicv3.h8
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 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 <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__ */