Mark Rutland 7aff4a2dd3 arm64: sysreg: allow write_sysreg to use XZR ... Currently write_sysreg has to allocate a temporary register to write zero to a system register, which is unfortunate given that the MSR instruction accepts XZR as an operand. Allow XZR to be used when appropriate by fiddling with the assembly constraints. Cc: Catalin Marinas <catalin.marinas@arm.com> Cc: Marc Zyngier <marc.zyngier@arm.com> Cc: Suzuki K Poulose <suzuki.poulose@arm.com> Reviewed-by: Robin Murphy <robin.murphy@arm.com> Signed-off-by: Mark Rutland <mark.rutland@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com>		2016-09-09 11:40:39 +01:00
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asm	arm64: sysreg: allow write_sysreg to use XZR	2016-09-09 11:40:39 +01:00
uapi/asm	arm64 fixes:	2016-08-06 08:58:59 -04:00