From 119f5173628aa7a0c3cf9db83460d40709e8241d Mon Sep 17 00:00:00 2001 From: CK Hu Date: Mon, 4 Jan 2016 18:36:34 +0100 Subject: drm/mediatek: Add DRM Driver for Mediatek SoC MT8173. This patch adds an initial DRM driver for the Mediatek MT8173 DISP subsystem. It currently supports two fixed output streams from the OVL0/OVL1 sources to the DSI0/DPI0 sinks, respectively. Signed-off-by: CK Hu Signed-off-by: YT Shen Signed-off-by: Daniel Kurtz Signed-off-by: Bibby Hsieh Signed-off-by: Mao Huang Signed-off-by: Philipp Zabel --- drivers/gpu/drm/mediatek/mtk_drm_gem.h | 59 ++++++++++++++++++++++++++++++++++ 1 file changed, 59 insertions(+) create mode 100644 drivers/gpu/drm/mediatek/mtk_drm_gem.h (limited to 'drivers/gpu/drm/mediatek/mtk_drm_gem.h') diff --git a/drivers/gpu/drm/mediatek/mtk_drm_gem.h b/drivers/gpu/drm/mediatek/mtk_drm_gem.h new file mode 100644 index 000000000000..3a2a5624a1cb --- /dev/null +++ b/drivers/gpu/drm/mediatek/mtk_drm_gem.h @@ -0,0 +1,59 @@ +/* + * Copyright (c) 2015 MediaTek Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License version 2 as + * published by the Free Software Foundation. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + */ + +#ifndef _MTK_DRM_GEM_H_ +#define _MTK_DRM_GEM_H_ + +#include + +/* + * mtk drm buffer structure. + * + * @base: a gem object. + * - a new handle to this gem object would be created + * by drm_gem_handle_create(). + * @cookie: the return value of dma_alloc_attrs(), keep it for dma_free_attrs() + * @kvaddr: kernel virtual address of gem buffer. + * @dma_addr: dma address of gem buffer. + * @dma_attrs: dma attributes of gem buffer. + * + * P.S. this object would be transferred to user as kms_bo.handle so + * user can access the buffer through kms_bo.handle. + */ +struct mtk_drm_gem_obj { + struct drm_gem_object base; + void *cookie; + void *kvaddr; + dma_addr_t dma_addr; + struct dma_attrs dma_attrs; + struct sg_table *sg; +}; + +#define to_mtk_gem_obj(x) container_of(x, struct mtk_drm_gem_obj, base) + +void mtk_drm_gem_free_object(struct drm_gem_object *gem); +struct mtk_drm_gem_obj *mtk_drm_gem_create(struct drm_device *dev, size_t size, + bool alloc_kmap); +int mtk_drm_gem_dumb_create(struct drm_file *file_priv, struct drm_device *dev, + struct drm_mode_create_dumb *args); +int mtk_drm_gem_dumb_map_offset(struct drm_file *file_priv, + struct drm_device *dev, uint32_t handle, + uint64_t *offset); +int mtk_drm_gem_mmap(struct file *filp, struct vm_area_struct *vma); +int mtk_drm_gem_mmap_buf(struct drm_gem_object *obj, + struct vm_area_struct *vma); +struct sg_table *mtk_gem_prime_get_sg_table(struct drm_gem_object *obj); +struct drm_gem_object *mtk_gem_prime_import_sg_table(struct drm_device *dev, + struct dma_buf_attachment *attach, struct sg_table *sg); + +#endif -- cgit v1.2.3