tree 6b929ae350635634570b41c7119783b26efe547e
parent d00adcc8ae9e22eca9d8af5f66c59ad9a74c90ec
author Marek Olšák <marek.olsak@amd.com> 1387675080 +0100
committer Alex Deucher <alexander.deucher@amd.com> 1387811022 -0500

drm/radeon: fix render backend setup for SI and CIK

Only the render backends of the first shader engine were enabled. The others
were erroneously disabled. Enabling the other render backends improves
performance a lot.

Unigine Sanctuary on Bonaire:
  Before: 15 fps
  After:  90 fps

Judging from the fan noise, the GPU was also underclocked when the other
render backends were disabled, resulting in horrible performance. The fan is
a lot noisy under load now.

Signed-off-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Cc: stable@vger.kernel.org