100 lines
3.2 KiB
C
100 lines
3.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (c) 2019 MediaTek Inc.
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*/
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#ifndef _MTK_DRM_GEM_H_
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#define _MTK_DRM_GEM_H_
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#include <drm/drm_gem.h>
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#if defined(CONFIG_MTK_IOMMU_V2)
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#include "ion_drv.h"
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#include "ion_priv.h"
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#include <soc/mediatek/smi.h>
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#include "mtk_iommu_ext.h"
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#include "pseudo_m4u.h"
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#endif
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/*
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* mtk drm buffer structure.
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*
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* @base: a gem object.
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* - a new handle to this gem object would be created
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* by drm_gem_handle_create().
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* @cookie: the return value of dma_alloc_attrs(), keep it for dma_free_attrs()
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* @kvaddr: kernel virtual address of gem buffer.
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* @dma_addr: dma address of gem buffer.
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* @dma_attrs: dma attributes of gem buffer.
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*
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* P.S. this object would be transferred to user as kms_bo.handle so
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* user can access the buffer through kms_bo.handle.
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*/
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struct mtk_drm_gem_obj {
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struct drm_gem_object base;
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void *cookie;
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void *kvaddr;
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dma_addr_t dma_addr;
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size_t size;
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unsigned long dma_attrs;
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struct sg_table *sg;
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#if defined(CONFIG_MTK_IOMMU_V2)
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struct ion_handle *handle;
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#endif
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bool sec;
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bool is_dumb;
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int sec_id;
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};
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#define to_mtk_gem_obj(x) container_of(x, struct mtk_drm_gem_obj, base)
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void mtk_drm_gem_free_object(struct drm_gem_object *gem);
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struct mtk_drm_gem_obj *mtk_drm_gem_create(struct drm_device *dev, size_t size,
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bool alloc_kmap);
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int mtk_drm_gem_dumb_create(struct drm_file *file_priv, struct drm_device *dev,
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struct drm_mode_create_dumb *args);
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int mtk_drm_gem_dumb_map_offset(struct drm_file *file_priv,
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struct drm_device *dev, uint32_t handle,
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uint64_t *offset);
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int mtk_drm_gem_mmap(struct file *filp, struct vm_area_struct *vma);
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int mtk_drm_gem_mmap_buf(struct drm_gem_object *obj,
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struct vm_area_struct *vma);
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#if defined(CONFIG_MTK_IOMMU_V2)
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struct ion_client *mtk_drm_gem_ion_create_client(const char *name);
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void mtk_drm_gem_ion_destroy_client(struct ion_client *client);
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void mtk_drm_gem_ion_free_handle(struct ion_client *client,
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struct ion_handle *handle, const char *name, int line);
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struct ion_handle *mtk_drm_gem_ion_import_handle(struct ion_client *client,
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int fd);
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#endif
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struct drm_gem_object *
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mtk_gem_prime_import(struct drm_device *dev, struct dma_buf *dma_buf);
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struct sg_table *mtk_gem_prime_get_sg_table(struct drm_gem_object *obj);
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struct drm_gem_object *
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mtk_gem_prime_import_sg_table(struct drm_device *dev,
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struct dma_buf_attachment *attach,
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struct sg_table *sg);
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/*
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* request gem object creation and buffer allocation as the size
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* that it is calculated with framebuffer information such as width,
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* height and bpp.
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*/
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int mtk_gem_create_ioctl(struct drm_device *dev, void *data,
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struct drm_file *file_priv);
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/* get buffer offset to map to user space. */
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int mtk_gem_map_offset_ioctl(struct drm_device *dev, void *data,
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struct drm_file *file_priv);
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/* submit buffer and return fence */
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int mtk_gem_submit_ioctl(struct drm_device *dev, void *data,
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struct drm_file *file_priv);
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int mtk_drm_sec_hnd_to_gem_hnd(struct drm_device *dev, void *data,
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struct drm_file *file_priv);
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struct mtk_drm_gem_obj *mtk_drm_fb_gem_insert(struct drm_device *dev,
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size_t size, phys_addr_t fb_base,
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unsigned int vramsize);
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void mtk_drm_fb_gem_release(struct drm_device *dev);
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#endif
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