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
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
|
/* SPDX-License-Identifier: GPL-2.0-only */
/*
* Copyright (c) 2015-2018 The Linux Foundation. All rights reserved.
* Copyright (C) 2013 Red Hat
* Author: Rob Clark <robdclark@gmail.com>
*/
#ifndef _DPU_CRTC_H_
#define _DPU_CRTC_H_
#include <linux/kthread.h>
#include <drm/drm_crtc.h>
#include "dpu_kms.h"
#include "dpu_core_perf.h"
#include "dpu_hw_blk.h"
#define DPU_CRTC_NAME_SIZE 12
/* define the maximum number of in-flight frame events */
#define DPU_CRTC_FRAME_EVENT_SIZE 4
/**
* enum dpu_crtc_client_type: crtc client type
* @RT_CLIENT: RealTime client like video/cmd mode display
* voting through apps rsc
* @NRT_CLIENT: Non-RealTime client like WB display
* voting through apps rsc
*/
enum dpu_crtc_client_type {
RT_CLIENT,
NRT_CLIENT,
};
/**
* enum dpu_crtc_smmu_state: smmu state
* @ATTACHED: all the context banks are attached.
* @DETACHED: all the context banks are detached.
* @ATTACH_ALL_REQ: transient state of attaching context banks.
* @DETACH_ALL_REQ: transient state of detaching context banks.
*/
enum dpu_crtc_smmu_state {
ATTACHED = 0,
DETACHED,
ATTACH_ALL_REQ,
DETACH_ALL_REQ,
};
/**
* enum dpu_crtc_smmu_state_transition_type: state transition type
* @NONE: no pending state transitions
* @PRE_COMMIT: state transitions should be done before processing the commit
* @POST_COMMIT: state transitions to be done after processing the commit.
*/
enum dpu_crtc_smmu_state_transition_type {
NONE,
PRE_COMMIT,
POST_COMMIT
};
/**
* struct dpu_crtc_smmu_state_data: stores the smmu state and transition type
* @state: current state of smmu context banks
* @transition_type: transition request type
* @transition_error: whether there is error while transitioning the state
*/
struct dpu_crtc_smmu_state_data {
uint32_t state;
uint32_t transition_type;
uint32_t transition_error;
};
/**
* struct dpu_crtc_mixer: stores the map for each virtual pipeline in the CRTC
* @hw_lm: LM HW Driver context
* @lm_ctl: CTL Path HW driver context
* @lm_dspp: DSPP HW driver context
* @mixer_op_mode: mixer blending operation mode
* @flush_mask: mixer flush mask for ctl, mixer and pipe
*/
struct dpu_crtc_mixer {
struct dpu_hw_mixer *hw_lm;
struct dpu_hw_ctl *lm_ctl;
struct dpu_hw_dspp *hw_dspp;
u32 mixer_op_mode;
u32 flush_mask;
};
/**
* struct dpu_crtc_frame_event: stores crtc frame event for crtc processing
* @work: base work structure
* @crtc: Pointer to crtc handling this event
* @list: event list
* @ts: timestamp at queue entry
* @event: event identifier
*/
struct dpu_crtc_frame_event {
struct kthread_work work;
struct drm_crtc *crtc;
struct list_head list;
ktime_t ts;
u32 event;
};
/*
* Maximum number of free event structures to cache
*/
#define DPU_CRTC_MAX_EVENT_COUNT 16
/**
* struct dpu_crtc - virtualized CRTC data structure
* @base : Base drm crtc structure
* @name : ASCII description of this crtc
* @event : Pointer to last received drm vblank event. If there is a
* pending vblank event, this will be non-null.
* @vsync_count : Running count of received vsync events
* @drm_requested_vblank : Whether vblanks have been enabled in the encoder
* @property_info : Opaque structure for generic property support
* @property_defaults : Array of default values for generic property support
* @stage_cfg : H/w mixer stage configuration
* @debugfs_root : Parent of debugfs node
* @vblank_cb_count : count of vblank callback since last reset
* @play_count : frame count between crtc enable and disable
* @vblank_cb_time : ktime at vblank count reset
* @enabled : whether the DPU CRTC is currently enabled. updated in the
* commit-thread, not state-swap time which is earlier, so
* safe to make decisions on during VBLANK on/off work
* @feature_list : list of color processing features supported on a crtc
* @active_list : list of color processing features are active
* @dirty_list : list of color processing features are dirty
* @ad_dirty: list containing ad properties that are dirty
* @ad_active: list containing ad properties that are active
* @frame_pending : Whether or not an update is pending
* @frame_events : static allocation of in-flight frame events
* @frame_event_list : available frame event list
* @spin_lock : spin lock for frame event, transaction status, etc...
* @frame_done_comp : for frame_event_done synchronization
* @event_thread : Pointer to event handler thread
* @event_worker : Event worker queue
* @event_lock : Spinlock around event handling code
* @phandle: Pointer to power handler
* @cur_perf : current performance committed to clock/bandwidth driver
*/
struct dpu_crtc {
struct drm_crtc base;
char name[DPU_CRTC_NAME_SIZE];
struct drm_pending_vblank_event *event;
u32 vsync_count;
struct dpu_hw_stage_cfg stage_cfg;
struct dentry *debugfs_root;
u32 vblank_cb_count;
u64 play_count;
ktime_t vblank_cb_time;
bool enabled;
struct list_head feature_list;
struct list_head active_list;
struct list_head dirty_list;
struct list_head ad_dirty;
struct list_head ad_active;
atomic_t frame_pending;
struct dpu_crtc_frame_event frame_events[DPU_CRTC_FRAME_EVENT_SIZE];
struct list_head frame_event_list;
spinlock_t spin_lock;
struct completion frame_done_comp;
/* for handling internal event thread */
spinlock_t event_lock;
struct dpu_core_perf_params cur_perf;
struct dpu_crtc_smmu_state_data smmu_state;
};
#define to_dpu_crtc(x) container_of(x, struct dpu_crtc, base)
/**
* struct dpu_crtc_state - dpu container for atomic crtc state
* @base: Base drm crtc state structure
* @bw_control : true if bw/clk controlled by core bw/clk properties
* @bw_split_vote : true if bw controlled by llcc/dram bw properties
* @lm_bounds : LM boundaries based on current mode full resolution, no ROI.
* Origin top left of CRTC.
* @property_state: Local storage for msm_prop properties
* @property_values: Current crtc property values
* @input_fence_timeout_ns : Cached input fence timeout, in ns
* @new_perf: new performance state being requested
* @num_mixers : Number of mixers in use
* @mixers : List of active mixers
* @num_ctls : Number of ctl paths in use
* @hw_ctls : List of active ctl paths
*/
struct dpu_crtc_state {
struct drm_crtc_state base;
bool bw_control;
bool bw_split_vote;
struct drm_rect lm_bounds[CRTC_DUAL_MIXERS];
uint64_t input_fence_timeout_ns;
struct dpu_core_perf_params new_perf;
/* HW Resources reserved for the crtc */
u32 num_mixers;
struct dpu_crtc_mixer mixers[CRTC_DUAL_MIXERS];
u32 num_ctls;
struct dpu_hw_ctl *hw_ctls[CRTC_DUAL_MIXERS];
};
#define to_dpu_crtc_state(x) \
container_of(x, struct dpu_crtc_state, base)
/**
* dpu_crtc_frame_pending - retun the number of pending frames
* @crtc: Pointer to drm crtc object
*/
static inline int dpu_crtc_frame_pending(struct drm_crtc *crtc)
{
return crtc ? atomic_read(&to_dpu_crtc(crtc)->frame_pending) : -EINVAL;
}
/**
* dpu_crtc_vblank - enable or disable vblanks for this crtc
* @crtc: Pointer to drm crtc object
* @en: true to enable vblanks, false to disable
*/
int dpu_crtc_vblank(struct drm_crtc *crtc, bool en);
/**
* dpu_crtc_vblank_callback - called on vblank irq, issues completion events
* @crtc: Pointer to drm crtc object
*/
void dpu_crtc_vblank_callback(struct drm_crtc *crtc);
/**
* dpu_crtc_commit_kickoff - trigger kickoff of the commit for this crtc
* @crtc: Pointer to drm crtc object
*/
void dpu_crtc_commit_kickoff(struct drm_crtc *crtc);
/**
* dpu_crtc_complete_commit - callback signalling completion of current commit
* @crtc: Pointer to drm crtc object
*/
void dpu_crtc_complete_commit(struct drm_crtc *crtc);
/**
* dpu_crtc_init - create a new crtc object
* @dev: dpu device
* @plane: base plane
* @cursor: cursor plane
* @Return: new crtc object or error
*/
struct drm_crtc *dpu_crtc_init(struct drm_device *dev, struct drm_plane *plane,
struct drm_plane *cursor);
/**
* dpu_crtc_register_custom_event - api for enabling/disabling crtc event
* @kms: Pointer to dpu_kms
* @crtc_drm: Pointer to crtc object
* @event: Event that client is interested
* @en: Flag to enable/disable the event
*/
int dpu_crtc_register_custom_event(struct dpu_kms *kms,
struct drm_crtc *crtc_drm, u32 event, bool en);
/**
* dpu_crtc_get_intf_mode - get interface mode of the given crtc
* @crtc: Pointert to crtc
*/
enum dpu_intf_mode dpu_crtc_get_intf_mode(struct drm_crtc *crtc);
/**
* dpu_crtc_get_client_type - check the crtc type- rt, nrt etc.
* @crtc: Pointer to crtc
*/
static inline enum dpu_crtc_client_type dpu_crtc_get_client_type(
struct drm_crtc *crtc)
{
return crtc && crtc->state ? RT_CLIENT : NRT_CLIENT;
}
#endif /* _DPU_CRTC_H_ */
|
