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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
commit | ace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch) | |
tree | b2d64bc10158fdd5497876388cd68142ca374ed3 /drivers/gpu/drm/i915/i915_ttm_buddy_manager.h | |
parent | Initial commit. (diff) | |
download | linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip |
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'drivers/gpu/drm/i915/i915_ttm_buddy_manager.h')
-rw-r--r-- | drivers/gpu/drm/i915/i915_ttm_buddy_manager.h | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/i915_ttm_buddy_manager.h b/drivers/gpu/drm/i915/i915_ttm_buddy_manager.h new file mode 100644 index 0000000000..d646207128 --- /dev/null +++ b/drivers/gpu/drm/i915/i915_ttm_buddy_manager.h @@ -0,0 +1,72 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright © 2021 Intel Corporation + */ + +#ifndef __I915_TTM_BUDDY_MANAGER_H__ +#define __I915_TTM_BUDDY_MANAGER_H__ + +#include <linux/list.h> +#include <linux/types.h> + +#include <drm/ttm/ttm_resource.h> + +struct ttm_device; +struct ttm_resource_manager; +struct drm_buddy; + +/** + * struct i915_ttm_buddy_resource + * + * @base: struct ttm_resource base class we extend + * @blocks: the list of struct i915_buddy_block for this resource/allocation + * @flags: DRM_BUDDY_*_ALLOCATION flags + * @used_visible_size: How much of this resource, if any, uses the CPU visible + * portion, in pages. + * @mm: the struct i915_buddy_mm for this resource + * + * Extends the struct ttm_resource to manage an address space allocation with + * one or more struct i915_buddy_block. + */ +struct i915_ttm_buddy_resource { + struct ttm_resource base; + struct list_head blocks; + unsigned long flags; + unsigned long used_visible_size; + struct drm_buddy *mm; +}; + +/** + * to_ttm_buddy_resource + * + * @res: the resource to upcast + * + * Upcast the struct ttm_resource object into a struct i915_ttm_buddy_resource. + */ +static inline struct i915_ttm_buddy_resource * +to_ttm_buddy_resource(struct ttm_resource *res) +{ + return container_of(res, struct i915_ttm_buddy_resource, base); +} + +int i915_ttm_buddy_man_init(struct ttm_device *bdev, + unsigned type, bool use_tt, + u64 size, u64 visible_size, + u64 default_page_size, u64 chunk_size); +int i915_ttm_buddy_man_fini(struct ttm_device *bdev, + unsigned int type); + +int i915_ttm_buddy_man_reserve(struct ttm_resource_manager *man, + u64 start, u64 size); + +u64 i915_ttm_buddy_man_visible_size(struct ttm_resource_manager *man); + +void i915_ttm_buddy_man_avail(struct ttm_resource_manager *man, + u64 *avail, u64 *avail_visible); + +#if IS_ENABLED(CONFIG_DRM_I915_SELFTEST) +void i915_ttm_buddy_man_force_visible_size(struct ttm_resource_manager *man, + u64 size); +#endif + +#endif |