100 lines
2.4 KiB
C
100 lines
2.4 KiB
C
/* SPDX-License-Identifier: GPL-2.0+ */
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/*
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* Copyright (C) 2023 Loongson Technology Corporation Limited
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*/
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#ifndef __LSDC_TTM_H__
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#define __LSDC_TTM_H__
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#include <linux/container_of.h>
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#include <linux/iosys-map.h>
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#include <linux/list.h>
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#include <drm/drm_gem.h>
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#include <drm/ttm/ttm_bo.h>
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#include <drm/ttm/ttm_placement.h>
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#include <drm/ttm/ttm_range_manager.h>
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#include <drm/ttm/ttm_tt.h>
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#define LSDC_GEM_DOMAIN_SYSTEM 0x1
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#define LSDC_GEM_DOMAIN_GTT 0x2
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#define LSDC_GEM_DOMAIN_VRAM 0x4
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struct lsdc_bo {
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struct ttm_buffer_object tbo;
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/* Protected by gem.mutex */
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struct list_head list;
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struct iosys_map map;
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unsigned int vmap_count;
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/* cross device driver sharing reference count */
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unsigned int sharing_count;
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struct ttm_bo_kmap_obj kmap;
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void *kptr;
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bool is_iomem;
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size_t size;
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u32 initial_domain;
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struct ttm_placement placement;
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struct ttm_place placements[4];
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};
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static inline struct ttm_buffer_object *to_ttm_bo(struct drm_gem_object *gem)
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{
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return container_of(gem, struct ttm_buffer_object, base);
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}
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static inline struct lsdc_bo *to_lsdc_bo(struct ttm_buffer_object *tbo)
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{
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return container_of(tbo, struct lsdc_bo, tbo);
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}
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static inline struct lsdc_bo *gem_to_lsdc_bo(struct drm_gem_object *gem)
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{
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return container_of(gem, struct lsdc_bo, tbo.base);
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}
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const char *lsdc_mem_type_to_str(uint32_t mem_type);
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const char *lsdc_domain_to_str(u32 domain);
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struct lsdc_bo *lsdc_bo_create(struct drm_device *ddev,
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u32 domain,
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size_t size,
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bool kernel,
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struct sg_table *sg,
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struct dma_resv *resv);
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struct lsdc_bo *lsdc_bo_create_kernel_pinned(struct drm_device *ddev,
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u32 domain,
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size_t size);
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void lsdc_bo_free_kernel_pinned(struct lsdc_bo *lbo);
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int lsdc_bo_reserve(struct lsdc_bo *lbo);
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void lsdc_bo_unreserve(struct lsdc_bo *lbo);
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int lsdc_bo_pin(struct lsdc_bo *lbo, u32 domain, u64 *gpu_addr);
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void lsdc_bo_unpin(struct lsdc_bo *lbo);
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void lsdc_bo_ref(struct lsdc_bo *lbo);
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void lsdc_bo_unref(struct lsdc_bo *lbo);
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u64 lsdc_bo_gpu_offset(struct lsdc_bo *lbo);
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size_t lsdc_bo_size(struct lsdc_bo *lbo);
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int lsdc_bo_kmap(struct lsdc_bo *lbo);
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void lsdc_bo_kunmap(struct lsdc_bo *lbo);
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void lsdc_bo_clear(struct lsdc_bo *lbo);
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int lsdc_bo_evict_vram(struct drm_device *ddev);
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int lsdc_ttm_init(struct lsdc_device *ldev);
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void lsdc_ttm_debugfs_init(struct lsdc_device *ldev);
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#endif
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