drm/amdgpu: Add support for resuming SDMA queues w/o HWS

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Save wptr in hqd_sdma_destroy, restore it in hqd_sdma_load. Also
read updated wptr from user mode when resuming an SDMA queue.

Signed-off-by: Jay Cornwall <Jay.Cornwall@amd.com>
Signed-off-by: Yong Zhao <yong.zhao@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Acked-by: Oded Gabbay <oded.gabbay@gmail.com>
Signed-off-by: Oded Gabbay <oded.gabbay@gmail.com>

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Felix Kuehling 2017-11-01 19:21:59 -04:00 • committed by Oded Gabbay

parent 7ce66118aa

commit fd0f0762dc

2 changed files with 23 additions and 14 deletions

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30

drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v7.c

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7

drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd_gfx_v8.c

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