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2023-12-08 01573e231f18eb2d99162747186f59511f56b64d

 kernel/drivers/gpu/drm/rockchip/ebc-dev/bufmanage/buf_manage.c
..
..
@@ -28,10 +28,8 @@
28
28
 	struct buf_list_s *dsp_buf_list; /* dispplay buffer list. */
29
29
 	int dsp_buf_list_status;
30
30
 	struct ebc_buf_s *osd_buf;
31
-	struct buf_list_s *osd_buf_list; /* dispplay buffer list. */
32
-	struct mutex osd_buf_lock;
33
-	struct mutex dsp_buf_lock;
34
-	struct mutex ebc_buf_lock;
31
+
32
+	struct mutex dsp_lock;
35
33
 };
36
34
 
37
35
 static struct buf_info_s ebc_buf_info;
..
..
@@ -56,106 +54,84 @@
56
54
 	return BUF_SUCCESS;
57
55
 }
58
56
 
59
-static void do_dsp_buf_list(struct ebc_buf_s *dsp_buf)
57
+int ebc_remove_from_dsp_buf_list(struct ebc_buf_s *remove_buf)
60
58
 {
61
-	struct ebc_buf_s *temp_buf;
62
-	int temp_pos;
63
-
64
-	if (ebc_buf_info.dsp_buf_list->nb_elt > 0) {
65
-		temp_pos = ebc_buf_info.dsp_buf_list->nb_elt;
66
-		while (temp_pos) {
67
-			temp_pos--;
68
-			temp_buf = (struct ebc_buf_s *)buf_list_get(ebc_buf_info.dsp_buf_list, temp_pos);
69
-			if (temp_buf->needpic) {
70
-				continue;
71
-			} else {
72
-				buf_list_remove(ebc_buf_info.dsp_buf_list, temp_pos);
73
-				ebc_buf_release(temp_buf);
74
-			}
75
-		}
76
-	}
77
-}
78
-
79
-int ebc_drop_one_dsp_buf(void)
80
-{
81
-	struct ebc_buf_s *temp_buf;
82
-	int temp_pos;
83
-
84
-	mutex_lock(&ebc_buf_info.dsp_buf_lock);
59
+	mutex_lock(&ebc_buf_info.dsp_lock);
85
60
 	if (ebc_buf_info.dsp_buf_list) {
86
-		if (ebc_buf_info.dsp_buf_list->nb_elt > 0) {
87
-			temp_pos = ebc_buf_info.dsp_buf_list->nb_elt - 1;
88
-			temp_buf = (struct ebc_buf_s *)buf_list_get(ebc_buf_info.dsp_buf_list, temp_pos);
89
-			if (temp_buf->needpic == 2) {
90
-				buf_list_remove(ebc_buf_info.dsp_buf_list, temp_pos);
91
-				ebc_buf_release(temp_buf);
92
-				mutex_unlock(&ebc_buf_info.dsp_buf_lock);
93
-				return BUF_SUCCESS;
94
-			}
95
-		}
61
+		int pos;
62
+
63
+		pos = buf_list_get_pos(ebc_buf_info.dsp_buf_list, (int *)remove_buf);
64
+		buf_list_remove(ebc_buf_info.dsp_buf_list, pos);
96
65
 	}
97
-	mutex_unlock(&ebc_buf_info.dsp_buf_lock);
98
-
99
-	return BUF_ERROR;
100
-}
101
-
102
-int ebc_add_to_dsp_buf_list(struct ebc_buf_s *dsp_buf)
103
-{
104
-	mutex_lock(&ebc_buf_info.dsp_buf_lock);
105
-	if (ebc_buf_info.dsp_buf_list) {
106
-		do_dsp_buf_list(dsp_buf);
107
-
108
-		if (-1 == buf_list_add(ebc_buf_info.dsp_buf_list, (int *)dsp_buf, -1)) {
109
-			ebc_buf_release(dsp_buf);
110
-			mutex_unlock(&ebc_buf_info.dsp_buf_lock);
111
-			return BUF_ERROR;
112
-		}
113
-
114
-		if (dsp_buf->status != buf_osd)
115
-			dsp_buf->status = buf_dsp;
116
-	}
117
-	mutex_unlock(&ebc_buf_info.dsp_buf_lock);
66
+	mutex_unlock(&ebc_buf_info.dsp_lock);
118
67
 
119
68
 	return BUF_SUCCESS;
120
69
 }
121
70
 
122
-int ebc_add_to_osd_buf_list(struct ebc_buf_s *dsp_buf)
71
+int ebc_add_to_dsp_buf_list(struct ebc_buf_s *dsp_buf)
123
72
 {
124
-	int ret = BUF_SUCCESS;
73
+	struct ebc_buf_s *temp_buf;
74
+	int temp_pos;
75
+	int is_full_mode = 0;
125
76
 
126
-	mutex_lock(&ebc_buf_info.osd_buf_lock);
127
-	if (ebc_buf_info.osd_buf_list) {
128
-		if (-1 == buf_list_add(ebc_buf_info.osd_buf_list, (int *)dsp_buf, -1)) {
129
-			ebc_buf_release(dsp_buf);
130
-			ret = BUF_ERROR;
77
+	mutex_lock(&ebc_buf_info.dsp_lock);
78
+	if (ebc_buf_info.dsp_buf_list) {
79
+		switch (dsp_buf->buf_mode) {
80
+		case EPD_DU:
81
+		case EPD_SUSPEND:
82
+		case EPD_RESUME:
83
+		case EPD_POWER_OFF:
84
+		case EPD_OVERLAY:
85
+		case EPD_RESET:
86
+			break;
87
+
88
+		default:
89
+			if (ebc_buf_info.dsp_buf_list->nb_elt > 1) {
90
+				temp_pos = ebc_buf_info.dsp_buf_list->nb_elt;
91
+				while (--temp_pos) {
92
+					temp_buf = (struct ebc_buf_s *)buf_list_get(ebc_buf_info.dsp_buf_list, temp_pos);
93
+					if ((temp_buf->buf_mode != EPD_FULL_GC16) &&
94
+					    (temp_buf->buf_mode != EPD_FULL_GL16) &&
95
+					    (temp_buf->buf_mode != EPD_FULL_GLR16) &&
96
+					    (temp_buf->buf_mode != EPD_FULL_GLD16) &&
97
+					    (temp_buf->buf_mode != EPD_FULL_GCC16) &&
98
+					    (temp_buf->buf_mode != EPD_OVERLAY) &&
99
+					    (temp_buf->buf_mode != EPD_DU) &&
100
+					    (temp_buf->buf_mode != EPD_SUSPEND) &&
101
+					    (temp_buf->buf_mode != EPD_RESUME) &&
102
+					    (temp_buf->buf_mode != EPD_POWER_OFF)) {
103
+						buf_list_remove(ebc_buf_info.dsp_buf_list, temp_pos);
104
+						ebc_buf_release(temp_buf);
105
+					} else if ((1 == is_full_mode) &&
106
+						   (temp_buf->buf_mode != EPD_DU) &&
107
+						   (temp_buf->buf_mode != EPD_OVERLAY) &&
108
+						   (temp_buf->buf_mode != EPD_SUSPEND) &&
109
+						   (temp_buf->buf_mode != EPD_RESUME) &&
110
+						   (temp_buf->buf_mode != EPD_POWER_OFF)) {
111
+						buf_list_remove(ebc_buf_info.dsp_buf_list, temp_pos);
112
+						ebc_buf_release(temp_buf);
113
+					} else {
114
+						is_full_mode = 1;
115
+					}
116
+				}
117
+			}
118
+			break;
119
+		}
120
+
121
+		dsp_buf->status = buf_dsp;
122
+		if (-1 == buf_list_add(ebc_buf_info.dsp_buf_list, (int *)dsp_buf, -1)) {
123
+			mutex_unlock(&ebc_buf_info.dsp_lock);
124
+			return BUF_ERROR;
131
125
 		}
132
126
 	}
133
-	mutex_unlock(&ebc_buf_info.osd_buf_lock);
134
-	return ret;
135
-}
127
+	mutex_unlock(&ebc_buf_info.dsp_lock);
136
128
 
137
-struct ebc_buf_s *ebc_osd_buf_get(void)
138
-{
139
-	struct ebc_buf_s *buf = NULL;
140
-
141
-	mutex_lock(&ebc_buf_info.osd_buf_lock);
142
-	if (ebc_buf_info.osd_buf_list && (ebc_buf_info.osd_buf_list->nb_elt > 0)) {
143
-		buf = (struct ebc_buf_s *)buf_list_get(ebc_buf_info.osd_buf_list, 0);
144
-		buf_list_remove(ebc_buf_info.osd_buf_list, 0);
145
-	}
146
-	mutex_unlock(&ebc_buf_info.osd_buf_lock);
147
-
148
-	return buf;
129
+	return BUF_SUCCESS;
149
130
 }
150
131
 
151
132
 int ebc_get_dsp_list_enum_num(void)
152
133
 {
153
134
 	return ebc_buf_info.dsp_buf_list->nb_elt;
154
-}
155
-
156
-int ebc_get_osd_list_enum_num(void)
157
-{
158
-	return ebc_buf_info.osd_buf_list->nb_elt;
159
135
 }
160
136
 
161
137
 struct ebc_buf_s *ebc_find_buf_by_phy_addr(unsigned long phy_addr)
..
..
@@ -179,17 +155,15 @@
179
155
 {
180
156
 	struct ebc_buf_s *buf = NULL;
181
157
 
182
-	mutex_lock(&ebc_buf_info.dsp_buf_lock);
183
-	if (ebc_buf_info.dsp_buf_list && (ebc_buf_info.dsp_buf_list->nb_elt > 0)) {
158
+	mutex_lock(&ebc_buf_info.dsp_lock);
159
+	if (ebc_buf_info.dsp_buf_list && (ebc_buf_info.dsp_buf_list->nb_elt > 0))
184
160
 		buf = (struct ebc_buf_s *)buf_list_get(ebc_buf_info.dsp_buf_list, 0);
185
-		buf_list_remove(ebc_buf_info.dsp_buf_list, 0);
186
-	}
187
-	mutex_unlock(&ebc_buf_info.dsp_buf_lock);
161
+	mutex_unlock(&ebc_buf_info.dsp_lock);
188
162
 
189
163
 	return buf;
190
164
 }
191
165
 
192
-struct ebc_buf_s *ebc_empty_osd_buf_get(void)
166
+struct ebc_buf_s *ebc_osd_buf_get(void)
193
167
 {
194
168
 	if (ebc_buf_info.osd_buf)
195
169
 		return ebc_buf_info.osd_buf;
..
..
@@ -211,13 +185,12 @@
211
185
 	return temp_buf;
212
186
 }
213
187
 
214
-struct ebc_buf_s *ebc_empty_buf_get(const char *tid_name)
188
+struct ebc_buf_s *ebc_empty_buf_get(void)
215
189
 {
216
-	struct ebc_buf_s *temp_buf = NULL;
190
+	struct ebc_buf_s *temp_buf;
217
191
 	int temp_pos;
218
192
 
219
-	mutex_lock(&ebc_buf_info.ebc_buf_lock);
220
-	while (ebc_buf_info.buf_list) {
193
+	if (ebc_buf_info.buf_list) {
221
194
 		temp_pos = 0;
222
195
 
223
196
 		while (temp_pos < ebc_buf_info.buf_list->nb_elt) {
..
..
@@ -225,23 +198,23 @@
225
198
 			if (temp_buf) {
226
199
 				if (temp_buf->status == buf_idle) {
227
200
 					temp_buf->status = buf_user;
228
-					memcpy(temp_buf->tid_name, tid_name, TASK_COMM_LEN - 1); //store user thread name
229
-					goto OUT;
201
+					memcpy(temp_buf->tid_name, current->comm, TASK_COMM_LEN); //store user thread name
202
+					return temp_buf;
230
203
 				}
231
204
 				// one tid only can get one buf at one time
232
-				else if ((temp_buf->status == buf_user) && (!strncmp(temp_buf->tid_name, tid_name, TASK_COMM_LEN - 1))) {
233
-					printk("[%s]: one tid only can get one buf at one time\n", tid_name);
234
-					goto OUT;
205
+				else if ((temp_buf->status == buf_user) && (!strncmp(temp_buf->tid_name, current->comm, TASK_COMM_LEN - 7))) {
206
+					return temp_buf;
235
207
 				}
236
208
 			}
237
209
 		}
238
210
 		ebc_buf_info.use_buf_is_empty = 1;
211
+
239
212
 		wait_event_interruptible(ebc_buf_wq, ebc_buf_info.use_buf_is_empty != 1);
213
+
214
+		return ebc_empty_buf_get();
240
215
 	}
241
216
 
242
-OUT:
243
-	mutex_unlock(&ebc_buf_info.ebc_buf_lock);
244
-	return temp_buf;
217
+	return NULL;
245
218
 }
246
219
 
247
220
 unsigned long ebc_phy_buf_base_get(void)
..
..
@@ -252,23 +225,6 @@
252
225
 char *ebc_virt_buf_base_get(void)
253
226
 {
254
227
 	return ebc_buf_info.virt_mem_base;
255
-}
256
-
257
-int ebc_buf_state_show(char *buf)
258
-{
259
-	int i;
260
-	int ret = 0;
261
-	struct ebc_buf_s *temp_buf;
262
-
263
-	ret += sprintf(buf, "dsp_buf num = %d\n", ebc_buf_info.dsp_buf_list->nb_elt);
264
-	if (ebc_buf_info.buf_list) {
265
-		for (i = 0; i < ebc_buf_info.buf_list->nb_elt; i++) {
266
-			temp_buf = (struct ebc_buf_s *)buf_list_get(ebc_buf_info.buf_list, i);
267
-			ret += sprintf(buf + ret, "ebc_buf[%d]: s = %d, m = %d, tid = %s\n", i, temp_buf->status, temp_buf->buf_mode, temp_buf->tid_name);
268
-		}
269
-	}
270
-
271
-	return ret;
272
228
 }
273
229
 
274
230
 int ebc_buf_uninit(void)
..
..
@@ -304,21 +260,14 @@
304
260
 	if (NULL == mem_start)
305
261
 		return BUF_ERROR;
306
262
 
307
-	mutex_init(&ebc_buf_info.dsp_buf_lock);
308
-	mutex_init(&ebc_buf_info.ebc_buf_lock);
309
-	mutex_init(&ebc_buf_info.osd_buf_lock);
263
+	mutex_init(&ebc_buf_info.dsp_lock);
310
264
 
311
265
 	if (buf_list_init(&ebc_buf_info.buf_list, BUF_LIST_MAX_NUMBER))
312
266
 		return BUF_ERROR;
313
267
 
314
268
 	if (buf_list_init(&ebc_buf_info.dsp_buf_list, BUF_LIST_MAX_NUMBER)) {
315
269
 		res = BUF_ERROR;
316
-		goto dsp_list_err;
317
-	}
318
-
319
-	if (buf_list_init(&ebc_buf_info.osd_buf_list, BUF_LIST_MAX_NUMBER)) {
320
-		res = BUF_ERROR;
321
-		goto osd_list_err;
270
+		goto buf_list_err;
322
271
 	}
323
272
 
324
273
 	ebc_buf_info.buf_total_num = 0;
..
..
@@ -368,13 +317,10 @@
368
317
 	}
369
318
 
370
319
 	return BUF_SUCCESS;
371
-
372
320
 exit:
373
321
 	ebc_buf_uninit();
374
-	buf_list_uninit(ebc_buf_info.osd_buf_list);
375
-osd_list_err:
376
322
 	buf_list_uninit(ebc_buf_info.dsp_buf_list);
377
-dsp_list_err:
323
+buf_list_err:
378
324
 	buf_list_uninit(ebc_buf_info.buf_list);
379
325
 
380
326
 	return res;