drm/amdgpu:impl RREG32 no kiq version
some registers are PF & VF copy, and we can safely use mmio method to access them. and sometime we are forbid to use kiq to access registers for example in INTR context. we need a MACRO that always disable KIQ for regs accessing Signed-off-by: NMonk Liu <Monk.Liu@amd.com> Reviewed-by: NAlex Deucher <alexander.deucher@amd.com> Reviewed-by: NXiangliang Yu <Xiangliang.Yu@amd.com> Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>
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