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authorVladimir Murzin <vladimir.murzin@arm.com>2016-09-12 15:49:21 +0100
committerChristoffer Dall <christoffer.dall@linaro.org>2016-09-22 13:22:05 +0200
commit163352eb6827e5b556b0860edc19327798fcc5ff (patch)
treecbf0560bda8d49ab34b771f2af56b0ac68c46564 /arch/arm/include
parentd7d0a11e44a1c6c1e61db7f305115f33be900704 (diff)
ARM: Introduce MPIDR_LEVEL_SHIFT macro
vgic-v3 driver uses architecture specific MPIDR_LEVEL_SHIFT macro to encode the affinity in a form compatible with ICC_SGI* registers. Unfortunately, that macro is missing on ARM, so let's add it. Cc: Russell King <rmk+kernel@armlinux.org.uk> Acked-by: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: Vladimir Murzin <vladimir.murzin@arm.com> Signed-off-by: Christoffer Dall <christoffer.dall@linaro.org>
Diffstat (limited to 'arch/arm/include')
-rw-r--r--arch/arm/include/asm/cputype.h1
1 files changed, 1 insertions, 0 deletions
diff --git a/arch/arm/include/asm/cputype.h b/arch/arm/include/asm/cputype.h
index 1ee94c716a7f..e2d94c1b07b8 100644
--- a/arch/arm/include/asm/cputype.h
+++ b/arch/arm/include/asm/cputype.h
@@ -55,6 +55,7 @@
#define MPIDR_LEVEL_BITS 8
#define MPIDR_LEVEL_MASK ((1 << MPIDR_LEVEL_BITS) - 1)
+#define MPIDR_LEVEL_SHIFT(level) (MPIDR_LEVEL_BITS * level)
#define MPIDR_AFFINITY_LEVEL(mpidr, level) \
((mpidr >> (MPIDR_LEVEL_BITS * level)) & MPIDR_LEVEL_MASK)