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torvalds
GitHub Repository: torvalds/linux
 Path: blob/master/drivers/accel/ivpu/ivpu_gem.h
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/* SPDX-License-Identifier: GPL-2.0-only */

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/*

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 * Copyright (C) 2020-2023 Intel Corporation

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 */

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#ifndef __IVPU_GEM_H__

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#define __IVPU_GEM_H__

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#include <drm/drm_gem.h>

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#include <drm/drm_gem_shmem_helper.h>

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#include <drm/drm_mm.h>

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struct ivpu_file_priv;

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struct ivpu_bo {

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	struct drm_gem_shmem_object base;

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	struct ivpu_mmu_context *ctx;

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	struct list_head bo_list_node;

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	struct drm_mm_node mm_node;

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	u64 vpu_addr;

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	u32 flags;

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	u32 job_status; /* Valid only for command buffer */

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	u32 ctx_id;

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	bool mmu_mapped;

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};

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int ivpu_bo_pin(struct ivpu_bo *bo);

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void ivpu_bo_unbind_all_bos_from_context(struct ivpu_device *vdev, struct ivpu_mmu_context *ctx);

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struct drm_gem_object *ivpu_gem_create_object(struct drm_device *dev, size_t size);

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struct drm_gem_object *ivpu_gem_prime_import(struct drm_device *dev, struct dma_buf *dma_buf);

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struct ivpu_bo *ivpu_bo_create(struct ivpu_device *vdev, struct ivpu_mmu_context *ctx,

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			       struct ivpu_addr_range *range, u64 size, u32 flags);

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struct ivpu_bo *ivpu_bo_create_global(struct ivpu_device *vdev, u64 size, u32 flags);

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void ivpu_bo_free(struct ivpu_bo *bo);

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int ivpu_bo_create_ioctl(struct drm_device *dev, void *data, struct drm_file *file);

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int ivpu_bo_info_ioctl(struct drm_device *dev, void *data, struct drm_file *file);

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int ivpu_bo_wait_ioctl(struct drm_device *dev, void *data, struct drm_file *file);

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void ivpu_bo_list(struct drm_device *dev, struct drm_printer *p);

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void ivpu_bo_list_print(struct drm_device *dev);

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static inline struct ivpu_bo *to_ivpu_bo(struct drm_gem_object *obj)

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{

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	return container_of(obj, struct ivpu_bo, base.base);

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}

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static inline void *ivpu_bo_vaddr(struct ivpu_bo *bo)

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{

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	return bo->base.vaddr;

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}

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static inline size_t ivpu_bo_size(struct ivpu_bo *bo)

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{

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	return bo->base.base.size;

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}

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static inline u32 ivpu_bo_cache_mode(struct ivpu_bo *bo)

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{

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	return bo->flags & DRM_IVPU_BO_CACHE_MASK;

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}

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static inline struct ivpu_device *ivpu_bo_to_vdev(struct ivpu_bo *bo)

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{

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	return to_ivpu_device(bo->base.base.dev);

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}

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static inline bool ivpu_bo_is_snooped(struct ivpu_bo *bo)

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{

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	if (ivpu_is_force_snoop_enabled(ivpu_bo_to_vdev(bo)))

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		return true;

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	return ivpu_bo_cache_mode(bo) == DRM_IVPU_BO_CACHED;

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}

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static inline void *ivpu_to_cpu_addr(struct ivpu_bo *bo, u32 vpu_addr)

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{

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	if (vpu_addr < bo->vpu_addr)

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		return NULL;

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	if (vpu_addr >= (bo->vpu_addr + ivpu_bo_size(bo)))

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		return NULL;

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	return ivpu_bo_vaddr(bo) + (vpu_addr - bo->vpu_addr);

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}

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static inline u32 cpu_to_vpu_addr(struct ivpu_bo *bo, void *cpu_addr)

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{

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	if (cpu_addr < ivpu_bo_vaddr(bo))

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		return 0;

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	if (cpu_addr >= (ivpu_bo_vaddr(bo) + ivpu_bo_size(bo)))

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		return 0;

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	return bo->vpu_addr + (cpu_addr - ivpu_bo_vaddr(bo));

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}

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#endif /* __IVPU_GEM_H__ */

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