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f8b5307074
Moving the driver-specific mmap code into a GEM object function allows for using DRM helpers for various mmap callbacks. The respective rockchip functions are being removed. The file_operations structure fops is now being created by the helper macro DEFINE_DRM_GEM_FOPS(). Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> [On rk3288 (pinky), rk3399 (gru-kevin, puma) and rk3328 (rock64)] Tested-by: Heiko Stuebner <heiko@sntech.de> [On RK3188/RK3066 (without iommu)] Tested-by: Alex Bee <knaerzche@gmail.com> Signed-off-by: Heiko Stuebner <heiko@sntech.de> Link: https://patchwork.freedesktop.org/patch/msgid/20210624095502.8945-1-tzimmermann@suse.de
46 lines
1.3 KiB
C
46 lines
1.3 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
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* Author:Mark Yao <mark.yao@rock-chips.com>
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*/
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#ifndef _ROCKCHIP_DRM_GEM_H
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#define _ROCKCHIP_DRM_GEM_H
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#define to_rockchip_obj(x) container_of(x, struct rockchip_gem_object, base)
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struct rockchip_gem_object {
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struct drm_gem_object base;
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unsigned int flags;
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void *kvaddr;
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dma_addr_t dma_addr;
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/* Used when IOMMU is disabled */
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unsigned long dma_attrs;
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/* Used when IOMMU is enabled */
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struct drm_mm_node mm;
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unsigned long num_pages;
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struct page **pages;
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struct sg_table *sgt;
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size_t size;
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};
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struct sg_table *rockchip_gem_prime_get_sg_table(struct drm_gem_object *obj);
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struct drm_gem_object *
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rockchip_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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int rockchip_gem_prime_vmap(struct drm_gem_object *obj, struct dma_buf_map *map);
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void rockchip_gem_prime_vunmap(struct drm_gem_object *obj, struct dma_buf_map *map);
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struct rockchip_gem_object *
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rockchip_gem_create_object(struct drm_device *drm, unsigned int size,
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bool alloc_kmap);
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void rockchip_gem_free_object(struct drm_gem_object *obj);
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int rockchip_gem_dumb_create(struct drm_file *file_priv,
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struct drm_device *dev,
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struct drm_mode_create_dumb *args);
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#endif /* _ROCKCHIP_DRM_GEM_H */
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