drm/amdgpu: avoid KIQ clashing with compute or KFD queues v2

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Instead of picking an arbitrary queue for KIQ, search for one according
to policy. The queue must be unused.

Also report the KIQ as an unavailable resource to KFD.

In testing I ran into KCQ initialization issues when using pipes 2/3 of
MEC2 for the KIQ. Therefore the policy disallows grabbing one of these.

v2: fix (ring.me + 1) to (ring.me -1) in amdgpu_amdkfd_device_init

Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Andres Rodriguez <andresx7@gmail.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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This commit is contained in:

Andres Rodriguez 2017-04-06 00:10:53 -04:00 • committed by Alex Deucher

parent de65513af1

commit 7b2124a5dd

4 changed files with 98 additions and 18 deletions

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23

drivers/gpu/drm/amd/amdgpu/amdgpu.h

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8

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

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43

drivers/gpu/drm/amd/amdgpu/gfx_v8_0.c

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42

drivers/gpu/drm/amd/amdgpu/gfx_v9_0.c

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