[PATCH v4 0/5] drm/xe: xe-only patches from the multi-device GPUSVM series

[Thomas Hellström]

A collection of misc patches that are prerequisites for the multi-device GPUSVM
series but that are xe-only and can be merged separately.

Patch 1
- Improved conditional compilation for the Xe GPUSVM support
Patch 2
- Fix a pontential UAF
Patch 3
- Adds a bo remove callback. In addition to GPUSVM this will improve
  on our device unbind support.
Patch 4
- A small fix for multi-gpu-svm support
Patch 5
- A change in implicit UAPI and needed for multi-gpu-svm support.

v2:
- Address review comments for Patch 3 (Matthew Auld)
- Fix system memory atomic access in Patch 5 (Intel CI)
v3:
- Fix compilation errors on i386 with Patch 1.
- Don't introduce an additional pinned.external_evicted list
  in Patch 3 (Matthew Auld)
- Avoid the UAPI change in Patch 5.
v4:
- Rework the pinned kernel bo dma unmapping in Patch 5.

Thomas Hellström (5):
  drm/xe: Introduce CONFIG_DRM_XE_GPUSVM
  drm/xe/svm: Fix a potential bo UAF
  drm/xe/bo: Add a bo remove callback
  drm/xe/migrate: Allow xe_migrate_vram() also on non-pagefault capable
    devices
  drm/xe: Make the PT code handle placement per PTE rather than per vma
    / range

Thomas Hellström (5):
  drm/xe: Introduce CONFIG_DRM_XE_GPUSVM
  drm/xe/svm: Fix a potential bo UAF
  drm/xe/bo: Add a bo remove callback
  drm/xe/migrate: Allow xe_migrate_vram() also on non-pagefault capable
    devices
  drm/xe: Make the PT code handle placement per PTE rather than per vma
    / range

 drivers/gpu/drm/xe/Kconfig           |  16 +++-
 drivers/gpu/drm/xe/Makefile          |   2 +-
 drivers/gpu/drm/xe/xe_bo.c           |  66 +++++++++++---
 drivers/gpu/drm/xe/xe_bo.h           |   2 +
 drivers/gpu/drm/xe/xe_bo_evict.c     |  84 +++++++++++++++++-
 drivers/gpu/drm/xe/xe_bo_evict.h     |   3 +
 drivers/gpu/drm/xe/xe_device.c       |  10 ++-
 drivers/gpu/drm/xe/xe_device_types.h |  10 ++-
 drivers/gpu/drm/xe/xe_migrate.c      |   8 +-
 drivers/gpu/drm/xe/xe_pt.c           | 126 ++++++++++++++-------------
 drivers/gpu/drm/xe/xe_query.c        |   2 +-
 drivers/gpu/drm/xe/xe_svm.c          |  22 ++++-
 drivers/gpu/drm/xe/xe_svm.h          |  73 +++++++++++-----
 drivers/gpu/drm/xe/xe_vm.c           |   2 +-
 14 files changed, 316 insertions(+), 110 deletions(-)

-- 
2.48.1