arm64: percpu: implement optimised pcpu access using tpidr_el1
authorWill Deacon <will.deacon@arm.com>
Tue, 5 Nov 2013 18:10:47 +0000 (18:10 +0000)
committerMark Brown <broonie@linaro.org>
Fri, 16 May 2014 15:38:55 +0000 (16:38 +0100)
commitedf0cf19ba3b6c750871b391c5edcb679c02daad
tree76c177c3b50d3f9540c005cf17e9ba7295ac50f4
parent6b8b8223b534f121c546d3f9d1605ee75fac1f85
arm64: percpu: implement optimised pcpu access using tpidr_el1

This patch implements optimised percpu variable accesses using the
el1 r/w thread register (tpidr_el1) along the same lines as arch/arm/.

Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
(cherry picked from commit 7158627686f02319c50c8d9d78f75d4c8d126ff2)
Signed-off-by: Mark Brown <broonie@linaro.org>
arch/arm64/include/asm/Kbuild
arch/arm64/include/asm/percpu.h [new file with mode: 0644]
arch/arm64/kernel/setup.c
arch/arm64/kernel/smp.c