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