drm/amdgpu: Add KFD VRAM limit checking

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We don't want KFD processes evicting each other over VRAM usage.
Therefore prevent overcommitting VRAM among KFD applications with
a per-GPU limit. Also leave enough room for page tables on top
of the application memory usage.

Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
Reviewed-by: Eric Huang <JinHuiEric.Huang@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

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This commit is contained in:

Felix Kuehling 2018-11-19 20:05:54 -05:00 • committed by Alex Deucher

parent 5634e38cda

commit 611736d844

5 changed files with 75 additions and 54 deletions

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7

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

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52

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

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8

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

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60

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

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2

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

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