86 lines
2.6 KiB
C
86 lines
2.6 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
|
|
/*
|
|
* Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
|
|
* Author:Mark Yao <mark.yao@rock-chips.com>
|
|
*/
|
|
|
|
#ifndef _ROCKCHIP_DRM_GEM_H
|
|
#define _ROCKCHIP_DRM_GEM_H
|
|
|
|
#include <linux/dma-direction.h>
|
|
|
|
#define to_rockchip_obj(x) container_of(x, struct rockchip_gem_object, base)
|
|
|
|
enum rockchip_gem_buf_type {
|
|
ROCKCHIP_GEM_BUF_TYPE_CMA,
|
|
ROCKCHIP_GEM_BUF_TYPE_SHMEM,
|
|
ROCKCHIP_GEM_BUF_TYPE_SECURE,
|
|
};
|
|
|
|
struct rockchip_gem_object {
|
|
struct drm_gem_object base;
|
|
unsigned int flags;
|
|
enum rockchip_gem_buf_type buf_type;
|
|
|
|
void *kvaddr;
|
|
dma_addr_t dma_addr; /* iova if iommu enable, otherwise physical address */
|
|
dma_addr_t dma_handle; /* physical address */
|
|
/* Used when IOMMU is disabled */
|
|
unsigned long dma_attrs;
|
|
|
|
/* Used when IOMMU is enabled */
|
|
struct drm_mm_node mm;
|
|
unsigned long num_pages;
|
|
struct page **pages;
|
|
struct sg_table *sgt;
|
|
size_t size;
|
|
};
|
|
|
|
struct sg_table *rockchip_gem_prime_get_sg_table(struct drm_gem_object *obj);
|
|
struct drm_gem_object *
|
|
rockchip_gem_prime_import_sg_table(struct drm_device *dev,
|
|
struct dma_buf_attachment *attach,
|
|
struct sg_table *sg);
|
|
void *rockchip_gem_prime_vmap(struct drm_gem_object *obj);
|
|
void rockchip_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr);
|
|
|
|
/* drm driver mmap file operations */
|
|
int rockchip_gem_mmap(struct file *filp, struct vm_area_struct *vma);
|
|
|
|
/* mmap a gem object to userspace. */
|
|
int rockchip_gem_mmap_buf(struct drm_gem_object *obj,
|
|
struct vm_area_struct *vma);
|
|
|
|
struct rockchip_gem_object *
|
|
rockchip_gem_create_object(struct drm_device *drm, unsigned int size,
|
|
bool alloc_kmap, unsigned int flags);
|
|
|
|
void rockchip_gem_free_object(struct drm_gem_object *obj);
|
|
|
|
int rockchip_gem_dumb_create(struct drm_file *file_priv,
|
|
struct drm_device *dev,
|
|
struct drm_mode_create_dumb *args);
|
|
/*
|
|
* request gem object creation and buffer allocation as the size
|
|
* that it is calculated with framebuffer information such as width,
|
|
* height and bpp.
|
|
*/
|
|
int rockchip_gem_create_ioctl(struct drm_device *dev, void *data,
|
|
struct drm_file *file_priv);
|
|
|
|
/* get buffer offset to map to user space. */
|
|
int rockchip_gem_map_offset_ioctl(struct drm_device *dev, void *data,
|
|
struct drm_file *file_priv);
|
|
|
|
int rockchip_gem_get_phys_ioctl(struct drm_device *dev, void *data,
|
|
struct drm_file *file_priv);
|
|
|
|
int rockchip_gem_prime_begin_cpu_access(struct drm_gem_object *obj,
|
|
enum dma_data_direction dir);
|
|
|
|
int rockchip_gem_prime_end_cpu_access(struct drm_gem_object *obj,
|
|
enum dma_data_direction dir);
|
|
|
|
void rockchip_gem_get_ddr_info(void);
|
|
#endif /* _ROCKCHIP_DRM_GEM_H */
|