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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/gem/i915_gem_ttm.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/gem/i915_gem_ttm.h')
-rw-r--r-- | drivers/gpu/drm/i915/gem/i915_gem_ttm.h | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/drivers/gpu/drm/i915/gem/i915_gem_ttm.h b/drivers/gpu/drm/i915/gem/i915_gem_ttm.h new file mode 100644 index 0000000000..67347e62e2 --- /dev/null +++ b/drivers/gpu/drm/i915/gem/i915_gem_ttm.h @@ -0,0 +1,107 @@ +/* SPDX-License-Identifier: MIT */ +/* + * Copyright © 2021 Intel Corporation + */ +#ifndef _I915_GEM_TTM_H_ +#define _I915_GEM_TTM_H_ + +#include <drm/ttm/ttm_placement.h> + +#include "gem/i915_gem_object_types.h" + +/** + * i915_gem_to_ttm - Convert a struct drm_i915_gem_object to a + * struct ttm_buffer_object. + * @obj: Pointer to the gem object. + * + * Return: Pointer to the embedded struct ttm_buffer_object. + */ +static inline struct ttm_buffer_object * +i915_gem_to_ttm(struct drm_i915_gem_object *obj) +{ + return &obj->__do_not_access; +} + +/* + * i915 ttm gem object destructor. Internal use only. + */ +void i915_ttm_bo_destroy(struct ttm_buffer_object *bo); + +/** + * i915_ttm_is_ghost_object - Check if the ttm bo is a ghost object. + * @bo: Pointer to the ttm buffer object + * + * Return: True if the ttm bo is not a i915 object but a ghost ttm object, + * False otherwise. + */ +static inline bool i915_ttm_is_ghost_object(struct ttm_buffer_object *bo) +{ + return bo->destroy != i915_ttm_bo_destroy; +} + +/** + * i915_ttm_to_gem - Convert a struct ttm_buffer_object to an embedding + * struct drm_i915_gem_object. + * @bo: Pointer to the ttm buffer object + * + * Return: Pointer to the embedding struct drm_i915_gem_object. + */ +static inline struct drm_i915_gem_object * +i915_ttm_to_gem(struct ttm_buffer_object *bo) +{ + return container_of(bo, struct drm_i915_gem_object, __do_not_access); +} + +int __i915_gem_ttm_object_init(struct intel_memory_region *mem, + struct drm_i915_gem_object *obj, + resource_size_t offset, + resource_size_t size, + resource_size_t page_size, + unsigned int flags); + +/* Internal I915 TTM declarations and definitions below. */ + +#define I915_PL_LMEM0 TTM_PL_PRIV +#define I915_PL_SYSTEM TTM_PL_SYSTEM +#define I915_PL_STOLEN TTM_PL_VRAM +#define I915_PL_GGTT TTM_PL_TT + +struct ttm_placement *i915_ttm_sys_placement(void); + +void i915_ttm_free_cached_io_rsgt(struct drm_i915_gem_object *obj); + +struct i915_refct_sgt * +i915_ttm_resource_get_st(struct drm_i915_gem_object *obj, + struct ttm_resource *res); + +void i915_ttm_adjust_lru(struct drm_i915_gem_object *obj); + +int i915_ttm_purge(struct drm_i915_gem_object *obj); + +/** + * i915_ttm_gtt_binds_lmem - Should the memory be viewed as LMEM by the GTT? + * @mem: struct ttm_resource representing the memory. + * + * Return: true if memory should be viewed as LMEM for GTT binding purposes, + * false otherwise. + */ +static inline bool i915_ttm_gtt_binds_lmem(struct ttm_resource *mem) +{ + return mem->mem_type != I915_PL_SYSTEM; +} + +/** + * i915_ttm_cpu_maps_iomem - Should the memory be viewed as IOMEM by the CPU? + * @mem: struct ttm_resource representing the memory. + * + * Return: true if memory should be viewed as IOMEM for CPU mapping purposes. + */ +static inline bool i915_ttm_cpu_maps_iomem(struct ttm_resource *mem) +{ + /* Once / if we support GGTT, this is also false for cached ttm_tts */ + return mem && mem->mem_type != I915_PL_SYSTEM; +} + +bool i915_ttm_resource_mappable(struct ttm_resource *res); + +#endif |