[RFC PATCH 0/2] drm/amdgpu: CIK UVD initialization fixes

[John Olender <john.olender@gmail.com>]

This patchset addresses two issues affecting UVD initialization on CIK
hardware:
 
* Patch #1 fixes init with <256M vram:
(https://gitlab.freedesktop.org/drm/amd/-/issues/3448)
 
* Patch #2 fixes init with >256M vram:
(https://gitlab.freedesktop.org/drm/amd/-/issues/3851)
Includes a whitespace fix for the version on the issue tracker.
 
[Request for Testing]

Patch #2 tries to preserve the existing vcpu bo allocation behavior for
UVD 5.0+.  However, I don't have any UVD 5.0+ hardware available for
regression testing.
 
If someone with a GCN3-5 card can confirm this patchset does not break
UVD 5.0+ init, it'd be greatly appreciated.

John Olender (2):
  drm/amdgpu: amdgpu_vram_mgr_new(): Clamp lpfn to total vram
  drm/amdgpu/uvd: Ensure vcpu bos are within the uvd segment

 drivers/gpu/drm/amd/amdgpu/amdgpu_uvd.c      | 36 ++++++++++++--------
 drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c |  2 +-
 2 files changed, 22 insertions(+), 16 deletions(-)


base-commit: 092f0316dd74beba6685b5c65ff7d25c4870e842
-- 
2.47.2