drm/amdkfd: Query vmid pasid mapping through stored info for non HWS
authorYong Zhao <Yong.Zhao@amd.com>
Wed, 25 Sep 2019 21:06:12 +0000 (17:06 -0400)
committerAlex Deucher <alexander.deucher@amd.com>
Thu, 3 Oct 2019 14:11:03 +0000 (09:11 -0500)
commit3fe023d42ea82be7d32ad26ab9409d970c1d361f
treeccb24804431d6cd433aa47c75960f99338c8af4e
parentd9d4623c87e9318549e0c85133c38909d9e8c47a
drm/amdkfd: Query vmid pasid mapping through stored info for non HWS

Because we record the mapping under non HWS mode in the software,
we can query pasid through vmid using the stored mapping instead of
reading from ATC registers.

This also prepares for the defeatured ATC block in future ASICs.

Signed-off-by: Yong Zhao <Yong.Zhao@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
drivers/gpu/drm/amd/amdkfd/kfd_int_process_v9.c