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| author | Marc Zyngier | 2016-12-20 16:20:38 +0100 |
|---|---|---|
| committer | Marc Zyngier | 2017-08-31 16:31:38 +0200 |
| commit | f6a91da7c788ac7345305ee291d0b205d2f5a70f (patch) | |
| tree | 559000b999db33baa125b9ea604757058ec62f9c /arch/arm/include/asm/arch_gicv3.h | |
| parent | irqchip/gic-v3-its: Add VPE affinity changes (diff) | |
| download | kernel-qcow2-linux-f6a91da7c788ac7345305ee291d0b205d2f5a70f.tar.gz kernel-qcow2-linux-f6a91da7c788ac7345305ee291d0b205d2f5a70f.tar.xz kernel-qcow2-linux-f6a91da7c788ac7345305ee291d0b205d2f5a70f.zip | |
irqchip/gic-v3-its: Add VPE interrupt masking
When masking/unmasking a doorbell interrupt, it is necessary
to issue an invalidation to the corresponding redistributor.
We use the DirectLPI feature by writting directly to the corresponding
redistributor.
Reviewed-by: Thomas Gleixner <tglx@linutronix.de>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>
Diffstat (limited to 'arch/arm/include/asm/arch_gicv3.h')
| -rw-r--r-- | arch/arm/include/asm/arch_gicv3.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/arch/arm/include/asm/arch_gicv3.h b/arch/arm/include/asm/arch_gicv3.h index 8d45e88feac9..eee269321923 100644 --- a/arch/arm/include/asm/arch_gicv3.h +++ b/arch/arm/include/asm/arch_gicv3.h @@ -276,6 +276,12 @@ static inline u64 __gic_readq_nonatomic(const volatile void __iomem *addr) #define gicr_write_pendbaser(v, c) __gic_writeq_nonatomic(v, c) /* + * GICR_xLPIR - only the lower bits are significant + */ +#define gic_read_lpir(c) readl_relaxed(c) +#define gic_write_lpir(v, c) writel_relaxed(lower_32_bits(v), c) + +/* * GITS_TYPER is an ID register and doesn't need atomicity. */ #define gits_read_typer(c) __gic_readq_nonatomic(c) |