[PATCH v10 0/8] Preparatory patches for nova-core memory management

[Joel Fernandes <joelagnelf@nvidia.com>]

These are initial preparatory patches needed for nova-core memory management
support. The series moves the DRM buddy allocator one level up so it can be
shared across GPU subsystems, adds Rust FFI and clist bindings, and creates
Rust GPU buddy allocator bindings.

The clist/ffi patches are ready, reviewed by Gary and Danilo. Miguel, can you
pull those via the rust tree?

The non-Rust DRM buddy related patches are already being pulled into upstream
by Dave Airlie but I have included them here as they are needed for the rest of
the patches (thanks to Dave for reworking them so they applied).

I will post the nova-core memory management patches as a separate follow-up
series just after this one.

The git tree with all these patches can be found at:
git://git.kernel.org/pub/scm/linux/kernel/git/jfern/linux.git (tag: nova/mm)

Joel Fernandes (7):
  gpu: Move DRM buddy allocator one level up (part one)
  gpu: Move DRM buddy allocator one level up (part two)
  rust: ffi: Convert pub use to pub mod and create ffi module
  rust: clist: Add support to interface with C linked lists
  rust: gpu: Add GPU buddy allocator bindings
  nova-core: mm: Select GPU_BUDDY for VRAM allocation
  nova-core: Kconfig: Sort select statements alphabetically

Koen Koning (1):
  gpu: Fix uninitialized buddy for built-in drivers

 Documentation/gpu/drm-mm.rst                  |   10 +-
 MAINTAINERS                                   |   15 +-
 drivers/gpu/Kconfig                           |   13 +
 drivers/gpu/Makefile                          |    3 +-
 drivers/gpu/buddy.c                           | 1322 +++++++++++++++++
 drivers/gpu/drm/Kconfig                       |    5 +-
 drivers/gpu/drm/Kconfig.debug                 |    1 -
 drivers/gpu/drm/Makefile                      |    1 -
 drivers/gpu/drm/amd/amdgpu/amdgpu_ras.c       |    2 +-
 .../gpu/drm/amd/amdgpu/amdgpu_res_cursor.h    |   12 +-
 drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.c  |   79 +-
 drivers/gpu/drm/amd/amdgpu/amdgpu_vram_mgr.h  |   20 +-
 drivers/gpu/drm/drm_buddy.c                   | 1277 +---------------
 drivers/gpu/drm/i915/gem/i915_gem_ttm.c       |    2 +-
 drivers/gpu/drm/i915/i915_scatterlist.c       |   10 +-
 drivers/gpu/drm/i915/i915_ttm_buddy_manager.c |   55 +-
 drivers/gpu/drm/i915/i915_ttm_buddy_manager.h |    4 +-
 .../drm/i915/selftests/intel_memory_region.c  |   20 +-
 drivers/gpu/drm/tests/Makefile                |    1 -
 drivers/gpu/drm/tests/drm_exec_test.c         |    2 -
 drivers/gpu/drm/tests/drm_mm_test.c           |    2 -
 .../gpu/drm/ttm/tests/ttm_bo_validate_test.c  |    4 +-
 drivers/gpu/drm/ttm/tests/ttm_mock_manager.c  |   18 +-
 drivers/gpu/drm/ttm/tests/ttm_mock_manager.h  |    4 +-
 drivers/gpu/drm/xe/xe_res_cursor.h            |   34 +-
 drivers/gpu/drm/xe/xe_svm.c                   |   12 +-
 drivers/gpu/drm/xe/xe_ttm_vram_mgr.c          |   71 +-
 drivers/gpu/drm/xe/xe_ttm_vram_mgr_types.h    |    4 +-
 drivers/gpu/nova-core/Kconfig                 |    3 +-
 drivers/gpu/tests/Makefile                    |    4 +
 .../gpu_buddy_test.c}                         |  416 +++---
 .../lib/drm_random.c => tests/gpu_random.c}   |   18 +-
 .../lib/drm_random.h => tests/gpu_random.h}   |   18 +-
 drivers/video/Kconfig                         |    1 +
 include/drm/drm_buddy.h                       |  163 +-
 include/linux/gpu_buddy.h                     |  177 +++
 rust/bindings/bindings_helper.h               |   11 +
 rust/helpers/gpu.c                            |   23 +
 rust/helpers/helpers.c                        |    2 +
 rust/helpers/list.c                           |   17 +
 rust/kernel/ffi/clist.rs                      |  327 ++++
 rust/kernel/ffi/mod.rs                        |    9 +
 rust/kernel/gpu/buddy.rs                      |  537 +++++++
 rust/kernel/gpu/mod.rs                        |    5 +
 rust/kernel/lib.rs                            |    5 +-
 45 files changed, 2893 insertions(+), 1846 deletions(-)
 create mode 100644 drivers/gpu/Kconfig
 create mode 100644 drivers/gpu/buddy.c
 create mode 100644 drivers/gpu/tests/Makefile
 rename drivers/gpu/{drm/tests/drm_buddy_test.c => tests/gpu_buddy_test.c} (67%)
 rename drivers/gpu/{drm/lib/drm_random.c => tests/gpu_random.c} (59%)
 rename drivers/gpu/{drm/lib/drm_random.h => tests/gpu_random.h} (53%)
 create mode 100644 include/linux/gpu_buddy.h
 create mode 100644 rust/helpers/gpu.c
 create mode 100644 rust/helpers/list.c
 create mode 100644 rust/kernel/ffi/clist.rs
 create mode 100644 rust/kernel/ffi/mod.rs
 create mode 100644 rust/kernel/gpu/buddy.rs
 create mode 100644 rust/kernel/gpu/mod.rs

Cc: Nikola Djukic <ndjukic@nvidia.com>
base-commit: 2961f841b025fb234860bac26dfb7fa7cb0fb122
-- 
2.34.1