drm/amdgpu: bypass lru touch for KIQ ring submission
authorPixel Ding <Pixel.Ding@amd.com>
Wed, 8 Nov 2017 02:20:01 +0000 (10:20 +0800)
committerAlex Deucher <alexander.deucher@amd.com>
Wed, 8 Nov 2017 22:55:14 +0000 (17:55 -0500)
commitdce1e131dd4dc68099ff1b70aa03cd2d0acf8639
treebf4a0efb026336ea7e4fa40c96829d75839bf12b
parent78aa02c713fcf19e9bc8511ab61a5fd6c877cc01
drm/amdgpu: bypass lru touch for KIQ ring submission

KIQ ring submission is used for register accessing on SRIOV
VF that could happen both in irq enabled and irq disabled cases.
Inversion lock could happen on adev->ring_lru_list_lock, while
this operation is useless and just adds overhead in this use
case.

Signed-off-by: Pixel Ding <Pixel.Ding@amd.com>
Reviewed-by: Monk Liu <Monk.Liu@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drivers/gpu/drm/amd/amdgpu/amdgpu_ring.c