drm/amdgpu: Add use_xgmi_p2p module parameter

Browse source

This parameter controls xGMI p2p communication, which is enabled by
default. However, it can be disabled by setting it to 0. In case xGMI
p2p is disabled in a dGPU, PCIe p2p interface will be used instead.
This parameter is ignored in GPUs that do not support xGMI
p2p configuration.

Signed-off-by: Alex Sierra <alex.sierra@amd.com>
Acked-by: Luben Tuikov <luben.tuikov@amd.com>
Acked-by: Harish Kasiviswanathan <Harish.Kasiviswanathan@amd.com>
Reviewed-by: Felix Kuehling <Felix.Kuehling@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

...

This commit is contained in:

Alex Sierra 2022-02-23 11:34:51 -06:00 • committed by Alex Deucher

parent 0bb319e7a1

commit 158a05a0b8

3 changed files with 11 additions and 1 deletions

Show all changes Ignore whitespace when comparing lines Ignore changes in amount of whitespace Ignore changes in whitespace at EOL

Download patch file Download diff file Expand all files Collapse all files

1

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

View file

8

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

View file

3

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

View file