1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
|
/*
* Copyright (C) 2014 Red Hat
* Copyright (C) 2014 Intel Corp.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
* OTHER DEALINGS IN THE SOFTWARE.
*
* Authors:
* Rob Clark <robdclark@gmail.com>
* Daniel Vetter <daniel.vetter@ffwll.ch>
*/
#ifndef DRM_ATOMIC_H_
#define DRM_ATOMIC_H_
#include <drm/drm_crtc.h>
void drm_crtc_commit_put(struct drm_crtc_commit *commit);
static inline void drm_crtc_commit_get(struct drm_crtc_commit *commit)
{
kref_get(&commit->ref);
}
struct drm_atomic_state * __must_check
drm_atomic_state_alloc(struct drm_device *dev);
void drm_atomic_state_clear(struct drm_atomic_state *state);
void drm_atomic_state_free(struct drm_atomic_state *state);
int __must_check
drm_atomic_state_init(struct drm_device *dev, struct drm_atomic_state *state);
void drm_atomic_state_default_clear(struct drm_atomic_state *state);
void drm_atomic_state_default_release(struct drm_atomic_state *state);
struct drm_crtc_state * __must_check
drm_atomic_get_crtc_state(struct drm_atomic_state *state,
struct drm_crtc *crtc);
int drm_atomic_crtc_set_property(struct drm_crtc *crtc,
struct drm_crtc_state *state, struct drm_property *property,
uint64_t val);
struct drm_plane_state * __must_check
drm_atomic_get_plane_state(struct drm_atomic_state *state,
struct drm_plane *plane);
int drm_atomic_plane_set_property(struct drm_plane *plane,
struct drm_plane_state *state, struct drm_property *property,
uint64_t val);
struct drm_connector_state * __must_check
drm_atomic_get_connector_state(struct drm_atomic_state *state,
struct drm_connector *connector);
int drm_atomic_connector_set_property(struct drm_connector *connector,
struct drm_connector_state *state, struct drm_property *property,
uint64_t val);
/**
* drm_atomic_get_existing_crtc_state - get crtc state, if it exists
* @state: global atomic state object
* @crtc: crtc to grab
*
* This function returns the crtc state for the given crtc, or NULL
* if the crtc is not part of the global atomic state.
*/
static inline struct drm_crtc_state *
drm_atomic_get_existing_crtc_state(struct drm_atomic_state *state,
struct drm_crtc *crtc)
{
return state->crtcs[drm_crtc_index(crtc)].state;
}
/**
* drm_atomic_get_existing_plane_state - get plane state, if it exists
* @state: global atomic state object
* @plane: plane to grab
*
* This function returns the plane state for the given plane, or NULL
* if the plane is not part of the global atomic state.
*/
static inline struct drm_plane_state *
drm_atomic_get_existing_plane_state(struct drm_atomic_state *state,
struct drm_plane *plane)
{
return state->planes[drm_plane_index(plane)].state;
}
/**
* drm_atomic_get_existing_connector_state - get connector state, if it exists
* @state: global atomic state object
* @connector: connector to grab
*
* This function returns the connector state for the given connector,
* or NULL if the connector is not part of the global atomic state.
*/
static inline struct drm_connector_state *
drm_atomic_get_existing_connector_state(struct drm_atomic_state *state,
struct drm_connector *connector)
{
int index = drm_connector_index(connector);
if (index >= state->num_connector)
return NULL;
return state->connectors[index].state;
}
/**
* __drm_atomic_get_current_plane_state - get current plane state
* @state: global atomic state object
* @plane: plane to grab
*
* This function returns the plane state for the given plane, either from
* @state, or if the plane isn't part of the atomic state update, from @plane.
* This is useful in atomic check callbacks, when drivers need to peek at, but
* not change, state of other planes, since it avoids threading an error code
* back up the call chain.
*
* WARNING:
*
* Note that this function is in general unsafe since it doesn't check for the
* required locking for access state structures. Drivers must ensure that it is
* safe to access the returned state structure through other means. One common
* example is when planes are fixed to a single CRTC, and the driver knows that
* the CRTC lock is held already. In that case holding the CRTC lock gives a
* read-lock on all planes connected to that CRTC. But if planes can be
* reassigned things get more tricky. In that case it's better to use
* drm_atomic_get_plane_state and wire up full error handling.
*
* Returns:
*
* Read-only pointer to the current plane state.
*/
static inline const struct drm_plane_state *
__drm_atomic_get_current_plane_state(struct drm_atomic_state *state,
struct drm_plane *plane)
{
if (state->planes[drm_plane_index(plane)].state)
return state->planes[drm_plane_index(plane)].state;
return plane->state;
}
int __must_check
drm_atomic_set_mode_for_crtc(struct drm_crtc_state *state,
struct drm_display_mode *mode);
int __must_check
drm_atomic_set_mode_prop_for_crtc(struct drm_crtc_state *state,
struct drm_property_blob *blob);
int __must_check
drm_atomic_set_crtc_for_plane(struct drm_plane_state *plane_state,
struct drm_crtc *crtc);
void drm_atomic_set_fb_for_plane(struct drm_plane_state *plane_state,
struct drm_framebuffer *fb);
int __must_check
drm_atomic_set_crtc_for_connector(struct drm_connector_state *conn_state,
struct drm_crtc *crtc);
int __must_check
drm_atomic_add_affected_connectors(struct drm_atomic_state *state,
struct drm_crtc *crtc);
int __must_check
drm_atomic_add_affected_planes(struct drm_atomic_state *state,
struct drm_crtc *crtc);
void drm_atomic_legacy_backoff(struct drm_atomic_state *state);
void
drm_atomic_clean_old_fb(struct drm_device *dev, unsigned plane_mask, int ret);
int __must_check drm_atomic_check_only(struct drm_atomic_state *state);
int __must_check drm_atomic_commit(struct drm_atomic_state *state);
int __must_check drm_atomic_nonblocking_commit(struct drm_atomic_state *state);
#define for_each_connector_in_state(__state, connector, connector_state, __i) \
for ((__i) = 0; \
(__i) < (__state)->num_connector && \
((connector) = (__state)->connectors[__i].ptr, \
(connector_state) = (__state)->connectors[__i].state, 1); \
(__i)++) \
for_each_if (connector)
#define for_each_crtc_in_state(__state, crtc, crtc_state, __i) \
for ((__i) = 0; \
(__i) < (__state)->dev->mode_config.num_crtc && \
((crtc) = (__state)->crtcs[__i].ptr, \
(crtc_state) = (__state)->crtcs[__i].state, 1); \
(__i)++) \
for_each_if (crtc_state)
#define for_each_plane_in_state(__state, plane, plane_state, __i) \
for ((__i) = 0; \
(__i) < (__state)->dev->mode_config.num_total_plane && \
((plane) = (__state)->planes[__i].ptr, \
(plane_state) = (__state)->planes[__i].state, 1); \
(__i)++) \
for_each_if (plane_state)
/**
* drm_atomic_crtc_needs_modeset - compute combined modeset need
* @state: &drm_crtc_state for the CRTC
*
* To give drivers flexibility struct &drm_crtc_state has 3 booleans to track
* whether the state CRTC changed enough to need a full modeset cycle:
* connectors_changed, mode_changed and active_change. This helper simply
* combines these three to compute the overall need for a modeset for @state.
*/
static inline bool
drm_atomic_crtc_needs_modeset(struct drm_crtc_state *state)
{
return state->mode_changed || state->active_changed ||
state->connectors_changed;
}
#endif /* DRM_ATOMIC_H_ */
|
