amdgpu: fix multi-process hang issue

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SWDEV-146499: hang during multi vulkan process testing

cause:
the second frame's PREAMBLE_IB have clear-state
and LOAD actions, those actions ruin the pipeline
that is still doing process in the previous frame's
work-load IB.

fix:
need insert pipeline sync if have context switch for
SRIOV (because only SRIOV will report PREEMPTION flag
to UMD)

Signed-off-by: Monk Liu <Monk.Liu@amd.com>
Signed-off-by: Emily Deng <Emily.Deng@amd.com>
Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Emily Deng 2018-08-22 20:18:25 +08:00 • committed by Alex Deucher

parent 9296435729

commit 4f0ecd36f2

1 changed files with 2 additions and 1 deletions

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

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