arm/arm64: gic-v3: Add PMR and RPR accessors
Add helper functions to access system registers related to interrupt priorities: PMR and RPR. Signed-off-by: NJulien Thierry <julien.thierry@arm.com> Reviewed-by: NMark Rutland <mark.rutland@arm.com> Acked-by: NCatalin Marinas <catalin.marinas@arm.com> Reviewed-by: NMarc Zyngier <marc.zyngier@arm.com> Cc: Russell King <linux@armlinux.org.uk> Cc: Will Deacon <will.deacon@arm.com> Cc: Marc Zyngier <marc.zyngier@arm.com> Signed-off-by: NCatalin Marinas <catalin.marinas@arm.com>
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