1 /* SPDX-License-Identifier: GPL-2.0-only */
2 /*
3  * Copyright (C) 2011 Texas Instruments Incorporated - https://www.ti.com/
4  * Author: Rob Clark <rob@ti.com>
5  */
6 
7 #ifndef __OMAPDRM_DRV_H__
8 #define __OMAPDRM_DRV_H__
9 
10 #include <linux/module.h>
11 #include <linux/types.h>
12 #include <linux/workqueue.h>
13 
14 #include "dss/omapdss.h"
15 #include "dss/dss.h"
16 
17 #include <drm/drm_atomic.h>
18 #include <drm/drm_gem.h>
19 #include <drm/omap_drm.h>
20 
21 #include "omap_crtc.h"
22 #include "omap_encoder.h"
23 #include "omap_fb.h"
24 #include "omap_fbdev.h"
25 #include "omap_gem.h"
26 #include "omap_irq.h"
27 #include "omap_plane.h"
28 #include "omap_overlay.h"
29 
30 #define DBG(fmt, ...) DRM_DEBUG_DRIVER(fmt"\n", ##__VA_ARGS__)
31 #define VERB(fmt, ...) if (0) DRM_DEBUG_DRIVER(fmt, ##__VA_ARGS__) /* verbose debug */
32 
33 #define MODULE_NAME     "omapdrm"
34 
35 struct omap_drm_usergart;
36 
37 struct omap_drm_pipeline {
38 	struct drm_crtc *crtc;
39 	struct drm_encoder *encoder;
40 	struct drm_connector *connector;
41 	struct omap_dss_device *output;
42 	unsigned int alias_id;
43 };
44 
45 /*
46  * Global private object state for tracking resources that are shared across
47  * multiple kms objects (planes/crtcs/etc).
48  */
49 #define to_omap_global_state(x) container_of(x, struct omap_global_state, base)
50 
51 struct omap_global_state {
52 	struct drm_private_state base;
53 
54 	/* global atomic state of assignment between overlays and planes */
55 	struct drm_plane *hwoverlay_to_plane[8];
56 };
57 
58 struct omap_drm_private {
59 	struct drm_device *ddev;
60 	struct device *dev;
61 	u32 omaprev;
62 
63 	struct dss_device *dss;
64 	struct dispc_device *dispc;
65 
66 	bool irq_enabled;
67 
68 	unsigned int num_pipes;
69 	struct omap_drm_pipeline pipes[8];
70 	struct omap_drm_pipeline *channels[8];
71 
72 	unsigned int num_planes;
73 	struct drm_plane *planes[8];
74 
75 	unsigned int num_ovls;
76 	struct omap_hw_overlay *overlays[8];
77 
78 	struct drm_private_obj glob_obj;
79 
80 	struct drm_fb_helper *fbdev;
81 
82 	struct workqueue_struct *wq;
83 
84 	/* lock for obj_list below */
85 	struct mutex list_lock;
86 
87 	/* list of GEM objects: */
88 	struct list_head obj_list;
89 
90 	struct omap_drm_usergart *usergart;
91 	bool has_dmm;
92 
93 	/* properties: */
94 	struct drm_property *zorder_prop;
95 
96 	/* irq handling: */
97 	spinlock_t wait_lock;		/* protects the wait_list */
98 	struct list_head wait_list;	/* list of omap_irq_wait */
99 	u32 irq_mask;			/* enabled irqs in addition to wait_list */
100 
101 	/* memory bandwidth limit if it is needed on the platform */
102 	unsigned int max_bandwidth;
103 };
104 
105 
106 void omap_debugfs_init(struct drm_minor *minor);
107 
108 struct omap_global_state * __must_check omap_get_global_state(struct drm_atomic_state *s);
109 
110 struct omap_global_state *omap_get_existing_global_state(struct omap_drm_private *priv);
111 
112 #endif /* __OMAPDRM_DRV_H__ */
113