[00/11] Enable integration of KFD with DRM GEM_VA ioctl

Message

Felix Kuehling Oct. 17, 2023, 9:13 p.m. UTC

This patch series enables better integration of KFD memory management with
the DRM GEM ioctl API. It allow managing virtual address mappings in
compute VMs with the GEM_VA ioctl after importing DMABufs exported from
KFD into libdrm.

This will enable more flexible virtual address management for ROCm user
mode, better interoperability between compute and graphics, as well as
sharing of memory between processes using DMABufs.

Felix Kuehling (11):
  drm/amdgpu: Fix possible null pointer dereference
  drm/amdgpu: Reserve fences for VM update
  drm/amdkfd: Improve amdgpu_vm_handle_moved
  drm/amdgpu: Attach eviction fence on alloc
  drm/amdgpu: update mappings not managed by KFD
  drm/amdkfd: Move TLB flushing logic into amdgpu
  drm/amdgpu: New VM state for evicted user BOs
  drm/amdgpu: Auto-validate DMABuf imports in compute VMs
  drm/amdkfd: Export DMABufs from KFD using GEM handles
  drm/amdkfd: Import DMABufs for interop through DRM
  drm/amdkfd: Bump KFD ioctl version

 drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.c    |  40 +---
 drivers/gpu/drm/amd/amdgpu/amdgpu_amdkfd.h    |  22 +-
 .../gpu/drm/amd/amdgpu/amdgpu_amdkfd_gpuvm.c  | 207 ++++++++++++------
 drivers/gpu/drm/amd/amdgpu/amdgpu_cs.c        |  22 +-
 drivers/gpu/drm/amd/amdgpu/amdgpu_dma_buf.c   |  11 +-
 drivers/gpu/drm/amd/amdgpu/amdgpu_gem.c       |  26 +++
 drivers/gpu/drm/amd/amdgpu/amdgpu_vm.c        | 198 ++++++++++++++++-
 drivers/gpu/drm/amd/amdgpu/amdgpu_vm.h        |  17 +-
 drivers/gpu/drm/amd/amdkfd/kfd_chardev.c      |  19 +-
 drivers/gpu/drm/amd/amdkfd/kfd_priv.h         |  10 +-
 drivers/gpu/drm/amd/amdkfd/kfd_process.c      |  31 ---
 include/uapi/linux/kfd_ioctl.h                |   3 +-
 12 files changed, 424 insertions(+), 182 deletions(-)