[PATCH 00/12] Improve PX support in radeon and amdgpu

[Alex Deucher]

This patch set cleans up and attempts to make runtime pm more
reliable in radeon and amdgpu on PX systems.  If you have a PX
system that requires setting the runpm=0 module parameter for
stability, please try this patch set.

The main fix is that a minimum of 200ms of delay is required between
a dGPU power down and a power up.

This patch also properly handles the detection of the ATPX dGPU
power control method properly and handles dGPU power control for
platforms that do not support the ATPX dGPU power control method.

Alex Deucher (12):
  drm/amdgpu: disable power control on hybrid laptops
  drm/amdgpu: clean up atpx power control handling
  drm/amdgpu: add a delay after ATPX dGPU power off
  drm/amdgpu/atpx: add a query for ATPX dGPU power control
  drm/amdgpu: use PCI_D3hot for PX systems without dGPU power control
  drm/amdgpu/atpx: drop forcing of dGPU power control
  drm/radeon: disable power control on hybrid laptops
  drm/radeon: clean up atpx power control handling
  drm/radeon: add a delay after ATPX dGPU power off
  drm/radeon/atpx: add a query for ATPX dGPU power control
  drm/radeon: use PCI_D3hot for PX systems without dGPU power control
  drm/radeon/atpx: drop forcing of dGPU power control

 drivers/gpu/drm/amd/amdgpu/amdgpu.h              |  2 +
 drivers/gpu/drm/amd/amdgpu/amdgpu_atpx_handler.c | 50 ++++++++++++++++--------
 drivers/gpu/drm/amd/amdgpu/amdgpu_drv.c          |  5 ++-
 drivers/gpu/drm/radeon/radeon_atpx_handler.c     | 49 +++++++++++++++--------
 drivers/gpu/drm/radeon/radeon_drv.c              |  7 +++-
 5 files changed, 77 insertions(+), 36 deletions(-)

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2.5.5