diff options
author | Christian König <christian.koenig@amd.com> | 2021-04-30 09:48:27 +0200 |
---|---|---|
committer | Christian König <christian.koenig@amd.com> | 2021-06-04 15:16:46 +0200 |
commit | cb1c81467af355829a4a9d8fa3f92ffab355d93c (patch) | |
tree | 3d24d197d2b3000d457198f733607e73d4b96685 /include | |
parent | d3bcb4b02fe977d6b7a82dbb6288e9223b5b6732 (diff) | |
download | linux-cb1c81467af355829a4a9d8fa3f92ffab355d93c.tar.bz2 |
drm/ttm: flip the switch for driver allocated resources v2
Instead of both driver and TTM allocating memory finalize embedding the
ttm_resource object as base into the driver backends.
v2: fix typo in vmwgfx grid mgr and double init in amdgpu_vram_mgr.c
Signed-off-by: Christian König <christian.koenig@amd.com>
Reviewed-by: Matthew Auld <matthew.auld@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/20210602100914.46246-10-christian.koenig@amd.com
Diffstat (limited to 'include')
-rw-r--r-- | include/drm/ttm/ttm_range_manager.h | 3 | ||||
-rw-r--r-- | include/drm/ttm/ttm_resource.h | 43 |
2 files changed, 18 insertions, 28 deletions
diff --git a/include/drm/ttm/ttm_range_manager.h b/include/drm/ttm/ttm_range_manager.h index 983f452ce54b..22b6fa42ac20 100644 --- a/include/drm/ttm/ttm_range_manager.h +++ b/include/drm/ttm/ttm_range_manager.h @@ -30,8 +30,7 @@ struct ttm_range_mgr_node { static inline struct ttm_range_mgr_node * to_ttm_range_mgr_node(struct ttm_resource *res) { - return container_of(res->mm_node, struct ttm_range_mgr_node, - mm_nodes[0]); + return container_of(res, struct ttm_range_mgr_node, base); } int ttm_range_man_init(struct ttm_device *bdev, diff --git a/include/drm/ttm/ttm_resource.h b/include/drm/ttm/ttm_resource.h index 803e4875d779..4abb95b9fd11 100644 --- a/include/drm/ttm/ttm_resource.h +++ b/include/drm/ttm/ttm_resource.h @@ -45,46 +45,38 @@ struct ttm_resource_manager_func { * * @man: Pointer to a memory type manager. * @bo: Pointer to the buffer object we're allocating space for. - * @placement: Placement details. - * @flags: Additional placement flags. - * @mem: Pointer to a struct ttm_resource to be filled in. + * @place: Placement details. + * @res: Resulting pointer to the ttm_resource. * * This function should allocate space in the memory type managed - * by @man. Placement details if - * applicable are given by @placement. If successful, - * @mem::mm_node should be set to a non-null value, and - * @mem::start should be set to a value identifying the beginning + * by @man. Placement details if applicable are given by @place. If + * successful, a filled in ttm_resource object should be returned in + * @res. @res::start should be set to a value identifying the beginning * of the range allocated, and the function should return zero. - * If the memory region accommodate the buffer object, @mem::mm_node - * should be set to NULL, and the function should return 0. + * If the manager can't fulfill the request -ENOSPC should be returned. * If a system error occurred, preventing the request to be fulfilled, * the function should return a negative error code. * - * Note that @mem::mm_node will only be dereferenced by - * struct ttm_resource_manager functions and optionally by the driver, - * which has knowledge of the underlying type. - * - * This function may not be called from within atomic context, so - * an implementation can and must use either a mutex or a spinlock to - * protect any data structures managing the space. + * This function may not be called from within atomic context and needs + * to take care of its own locking to protect any data structures + * managing the space. */ int (*alloc)(struct ttm_resource_manager *man, struct ttm_buffer_object *bo, const struct ttm_place *place, - struct ttm_resource *mem); + struct ttm_resource **res); /** * struct ttm_resource_manager_func member free * * @man: Pointer to a memory type manager. - * @mem: Pointer to a struct ttm_resource to be filled in. + * @res: Pointer to a struct ttm_resource to be freed. * - * This function frees memory type resources previously allocated - * and that are identified by @mem::mm_node and @mem::start. May not - * be called from within atomic context. + * This function frees memory type resources previously allocated. + * May not be called from within atomic context. */ void (*free)(struct ttm_resource_manager *man, - struct ttm_resource *mem); + struct ttm_resource *res); /** * struct ttm_resource_manager_func member debug @@ -158,9 +150,9 @@ struct ttm_bus_placement { /** * struct ttm_resource * - * @mm_node: Memory manager node. - * @size: Requested size of memory region. - * @num_pages: Actual size of memory region in pages. + * @start: Start of the allocation. + * @num_pages: Actual size of resource in pages. + * @mem_type: Resource type of the allocation. * @placement: Placement flags. * @bus: Placement on io bus accessible to the CPU * @@ -168,7 +160,6 @@ struct ttm_bus_placement { * buffer object. */ struct ttm_resource { - void *mm_node; unsigned long start; unsigned long num_pages; uint32_t mem_type; |