drm/amdgpu: drop legacy IO bar support

Browse source

It was leftover from radeon where it was required for some
specific old hardware.  It hasn't been required for ages
and the driver already falls back to MMIO when legacy IO
is not available.  Legacy IO also seems to be problematic on
on some thunderbolt devices.  Drop it.

Reviewed-by: Christian König <christian.koenig@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: Nicholas Johnson <nicholas.johnson-opensource@outlook.com.au>

...

This commit is contained in:

Alex Deucher 2021-03-15 11:14:40 -04:00

parent 5a613586c8

commit e99d2eaafd

5 changed files with 2 additions and 111 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

7

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

View file

43

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

View file

57

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

View file

4

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

View file

2

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

View file