[PATCH v4 0/7] Best effort contiguous VRAM allocation

[Philip Yang]

This patch series implement new KFD memory alloc flag for best effort contiguous
VRAM allocation, to support peer direct access RDMA device with limited scatter-gather
dma capability.

v2: rebase on patch ("drm/amdgpu: Modify the contiguous flags behaviour")
    to avoid adding the new GEM flag

v3: add patch 2 to handle sg segment size limit (Christian)

v4: remove the buddy block size limit from vram mgr because sg table creation already
    remove the limit, and resource uses u64 to handle block start, size (Christian)

Philip Yang (7):
  drm/amdgpu: Support contiguous VRAM allocation
  drm/amdgpu: Handle sg size limit for contiguous allocation
  drm/amdgpu: Evict BOs from same process for contiguous allocation
  drm/amdkfd: Evict BO itself for contiguous allocation
  drm/amdkfd: Increase KFD bo restore wait time
  drm/amdgpu: Skip dma map resource for null RDMA device
  drm/amdkfd: Bump kfd version for contiguous VRAM allocation

 .../gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c  | 20 ++++++++-
 drivers/gpu/drm/amd/amdgpu/amdgpu_ttm.c       |  3 +-
 drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c  | 45 ++++++++++---------
 drivers/gpu/drm/amd/amdkfd/kfd_priv.h         |  2 +-
 include/uapi/linux/kfd_ioctl.h                |  4 +-
 5 files changed, 50 insertions(+), 24 deletions(-)

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2.43.2