linux/arch/arm64/include
Will Deacon 77ec462536 arm64: vdso: Avoid ISB after reading from cntvct_el0
We can avoid the expensive ISB instruction after reading the counter in
the vDSO gettime functions by creating a fake address hazard against a
dummy stack read, just like we do inside the kernel.

Signed-off-by: Will Deacon <will@kernel.org>
Reviewed-by: Vincenzo Frascino <vincenzo.frascino@arm.com>
Link: https://lore.kernel.org/r/20210318170738.7756-5-will@kernel.org
Signed-off-by: Catalin Marinas <catalin.marinas@arm.com>
2021-03-24 16:48:41 +00:00
..
asm arm64: vdso: Avoid ISB after reading from cntvct_el0 2021-03-24 16:48:41 +00:00
uapi/asm KVM: arm64: Move 'struct kvm_arch_memory_slot' out of uapi/ 2020-11-27 18:59:05 +00:00