2 * Copyright (C) Fuzhou Rockchip Electronics Co.Ltd
3 * Author:Mark Yao <mark.yao@rock-chips.com>
5 * based on exynos_drm_drv.h
7 * This software is licensed under the terms of the GNU General Public
8 * License version 2, as published by the Free Software Foundation, and
9 * may be copied, distributed, and modified under those terms.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
17 #ifndef _ROCKCHIP_DRM_DRV_H
18 #define _ROCKCHIP_DRM_DRV_H
20 #include <drm/drm_fb_helper.h>
21 #include <drm/drm_atomic_helper.h>
22 #include <drm/drm_gem.h>
24 #include <linux/module.h>
25 #include <linux/component.h>
27 #define ROCKCHIP_MAX_FB_BUFFER 3
28 #define ROCKCHIP_MAX_CONNECTOR 2
29 #define ROCKCHIP_MAX_CRTC 2
36 * Rockchip drm private crtc funcs.
37 * @loader_protect: protect loader logo crtc's power
38 * @enable_vblank: enable crtc vblank irq.
39 * @disable_vblank: disable crtc vblank irq.
41 struct rockchip_crtc_funcs {
42 int (*loader_protect)(struct drm_crtc *crtc, bool on);
43 int (*enable_vblank)(struct drm_crtc *crtc);
44 void (*disable_vblank)(struct drm_crtc *crtc);
45 void (*wait_for_update)(struct drm_crtc *crtc);
46 void (*cancel_pending_vblank)(struct drm_crtc *crtc, struct drm_file *file_priv);
47 int (*debugfs_dump)(struct drm_crtc *crtc, struct seq_file *s);
48 enum drm_mode_status (*mode_valid)(struct drm_crtc *crtc,
49 const struct drm_display_mode *mode,
53 struct drm_rockchip_subdrv {
54 struct list_head list;
56 struct drm_device *drm_dev;
58 int (*open)(struct drm_device *drm_dev, struct device *dev,
59 struct drm_file *file);
60 void (*close)(struct drm_device *drm_dev, struct device *dev,
61 struct drm_file *file);
64 struct rockchip_atomic_commit {
65 struct work_struct work;
66 struct drm_atomic_state *state;
67 struct drm_device *dev;
71 struct rockchip_crtc_state {
72 struct drm_crtc_state base;
89 #define to_rockchip_crtc_state(s) \
90 container_of(s, struct rockchip_crtc_state, base)
93 * Rockchip drm_file private structure.
95 * @gem_cpu_acquire_list: list of GEM objects we hold acquires on
97 struct rockchip_drm_file_private {
98 struct list_head gem_cpu_acquire_list;
99 struct rockchip_drm_rga_private *rga_priv;
102 struct rockchip_logo {
103 struct sg_table *sgt;
104 struct drm_mm_node mm;
108 size_t iommu_map_size;
113 * Rockchip drm private structure.
115 * @crtc: array of enabled CRTCs, used to map from "pipe" to drm_crtc.
116 * @num_pipe: number of pipes for this device.
117 * @cpu_fence_context: fence context used for CPU acquire/release
118 * @cpu_fence_seqno: fence sequence number
120 struct rockchip_drm_private {
121 struct rockchip_logo *logo;
122 struct drm_fb_helper *fbdev_helper;
123 struct drm_gem_object *fbdev_bo;
124 const struct rockchip_crtc_funcs *crtc_funcs[ROCKCHIP_MAX_CRTC];
125 struct drm_atomic_state *state;
127 struct rockchip_atomic_commit commit;
128 struct iommu_domain *domain;
129 #ifdef CONFIG_DRM_DMA_SYNC
130 unsigned int cpu_fence_context;
131 atomic_t cpu_fence_seqno;
133 /* protect drm_mm on multi-threads */
134 struct mutex mm_lock;
138 void rockchip_drm_atomic_work(struct work_struct *work);
139 int rockchip_register_crtc_funcs(struct drm_crtc *crtc,
140 const struct rockchip_crtc_funcs *crtc_funcs);
141 void rockchip_unregister_crtc_funcs(struct drm_crtc *crtc);
142 int rockchip_drm_dma_attach_device(struct drm_device *drm_dev,
144 void rockchip_drm_dma_detach_device(struct drm_device *drm_dev,
146 int rockchip_drm_wait_line_flag(struct drm_crtc *crtc, unsigned int line_num,
147 unsigned int mstimeout);
149 int rockchip_drm_register_subdrv(struct drm_rockchip_subdrv *subdrv);
150 int rockchip_drm_unregister_subdrv(struct drm_rockchip_subdrv *subdrv);
152 #endif /* _ROCKCHIP_DRM_DRV_H_ */