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| author | Dave Airlie <airlied@redhat.com> | 2025-01-11 07:20:22 +1000 |
|---|---|---|
| committer | Dave Airlie <airlied@redhat.com> | 2025-01-11 07:20:29 +1000 |
| commit | 39388d53c57be95eafb0ce1d81d0ec6bd2f6f42d (patch) | |
| tree | a3cb205af6b54c4b143b327247e99b390cac1128 /include/drm/ttm | |
| parent | f6001870edeabf0f7bc0460303d0cdbb9f0b3bc4 (diff) | |
| parent | dfe6aa163c3b3780add4392d93b686b399ceb591 (diff) | |
| download | lwn-39388d53c57be95eafb0ce1d81d0ec6bd2f6f42d.tar.gz lwn-39388d53c57be95eafb0ce1d81d0ec6bd2f6f42d.zip | |
Merge tag 'cgroup-dmem-drm-v2' of git://git.kernel.org/pub/scm/linux/kernel/git/mripard/linux into drm-next
DMEM cgroup pull request
This introduces a new cgroup controller to limit the device memory.
Notable users would be DRM, dma-buf heaps, or v4l2.
This pull request is based on the series developped by Maarten
Lankhorst, Friedrich Vock, and I:
https://lore.kernel.org/all/20241204134410.1161769-1-dev@lankhorst.se/
Signed-off-by: Dave Airlie <airlied@redhat.com>
From: Maxime Ripard <mripard@redhat.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20250110-cryptic-warm-mandrill-b71f5d@houat
Diffstat (limited to 'include/drm/ttm')
| -rw-r--r-- | include/drm/ttm/ttm_resource.h | 12 |
1 files changed, 11 insertions, 1 deletions
diff --git a/include/drm/ttm/ttm_resource.h b/include/drm/ttm/ttm_resource.h index be034be56ba1..ee688d0c029b 100644 --- a/include/drm/ttm/ttm_resource.h +++ b/include/drm/ttm/ttm_resource.h @@ -38,6 +38,7 @@ #define TTM_MAX_BO_PRIORITY 4U #define TTM_NUM_MEM_TYPES 8 +struct dmem_cgroup_device; struct ttm_device; struct ttm_resource_manager; struct ttm_resource; @@ -211,6 +212,11 @@ struct ttm_resource_manager { * bdev->lru_lock. */ uint64_t usage; + + /** + * @cg: &dmem_cgroup_region used for memory accounting, if not NULL. + */ + struct dmem_cgroup_region *cg; }; /** @@ -239,6 +245,7 @@ struct ttm_bus_placement { * @placement: Placement flags. * @bus: Placement on io bus accessible to the CPU * @bo: weak reference to the BO, protected by ttm_device::lru_lock + * @css: cgroup state this resource is charged to * * Structure indicating the placement and space resources used by a * buffer object. @@ -251,6 +258,8 @@ struct ttm_resource { struct ttm_bus_placement bus; struct ttm_buffer_object *bo; + struct dmem_cgroup_pool_state *css; + /** * @lru: Least recently used list, see &ttm_resource_manager.lru */ @@ -432,7 +441,8 @@ void ttm_resource_fini(struct ttm_resource_manager *man, int ttm_resource_alloc(struct ttm_buffer_object *bo, const struct ttm_place *place, - struct ttm_resource **res); + struct ttm_resource **res, + struct dmem_cgroup_pool_state **ret_limit_pool); void ttm_resource_free(struct ttm_buffer_object *bo, struct ttm_resource **res); bool ttm_resource_intersects(struct ttm_device *bdev, struct ttm_resource *res, |