This RFC series is first implementation of some ideas expressed
earlier on dri-devel [1].
Some of the goals (open for much debate) are:
- Create common base structure (subclass) for memory regions (patch #1)
- Create common memory region types (patch #2)
- Create common set of memory_region function callbacks (based on
ttm_mem_type_manager_funcs and intel_memory_regions_ops)
- Create common helpers that operate on drm_mem_region to be leveraged
by both TTM drivers and i915, reducing code duplication
- Above might start with refactoring ttm_bo_manager.c as these are
helpers for using drm_mm's range allocator and could be made to
operate on DRM structures instead of TTM ones.
- Larger goal might be to make LRU management of GEM objects common, and
migrate those fields into drm_mem_region and drm_gem_object strucures.
Patches 1-2 implement the proposed struct drm_mem_region and adds
associated common set of definitions for memory region type.
Patch #3 is update to i915 and is based upon another series which is
in progress to add vram support to i915 [2].
[1] https://lists.freedesktop.org/archives/dri-devel/2019-June/224501.html
[2] https://lists.freedesktop.org/archives/intel-gfx/2019-June/203649.html
Brian Welty (3):
drm: introduce new struct drm_mem_region
drm: Introduce DRM_MEM defines for specifying type of drm_mem_region
drm/i915: Update intel_memory_region to use nested drm_mem_region
drivers/gpu/drm/i915/gem/i915_gem_object.c | 2 +-
drivers/gpu/drm/i915/gem/i915_gem_shmem.c | 2 +-
drivers/gpu/drm/i915/i915_gem_gtt.c | 10 +++---
drivers/gpu/drm/i915/i915_gpu_error.c | 2 +-
drivers/gpu/drm/i915/i915_query.c | 2 +-
drivers/gpu/drm/i915/intel_memory_region.c | 10 +++---
drivers/gpu/drm/i915/intel_memory_region.h | 19 +++-------
drivers/gpu/drm/i915/intel_region_lmem.c | 26 +++++++-------
.../drm/i915/selftests/intel_memory_region.c | 8 ++---
drivers/gpu/drm/ttm/ttm_bo.c | 34 ++++++++++--------
drivers/gpu/drm/ttm/ttm_bo_manager.c | 14 ++++----
drivers/gpu/drm/ttm/ttm_bo_util.c | 11 +++---
drivers/gpu/drm/vmwgfx/vmwgfx_gmrid_manager.c | 8 ++---
drivers/gpu/drm/vmwgfx/vmwgfx_ttm_buffer.c | 4 +--
include/drm/drm_mm.h | 35 +++++++++++++++++++
include/drm/ttm/ttm_bo_api.h | 2 +-
include/drm/ttm/ttm_bo_driver.h | 16 ++++-----
include/drm/ttm/ttm_placement.h | 8 ++---
18 files changed, 122 insertions(+), 91 deletions(-)
--
2.21.0
_______________________________________________
Intel-gfx mailing list
Intel-gfx@xxxxxxxxxxxxxxxxxxxxx
https://lists.freedesktop.org/mailman/listinfo/intel-gfx
