summaryrefslogtreecommitdiffstats
path: root/drivers/video/ps3fb.c
blob: 4e292f29bf5dedb710085d291105c75f604e3e74 (plain)
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
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
842
843
844
845
846
847
848
849
850
851
852
853
854
855
856
857
858
859
860
861
862
863
864
865
866
867
868
869
870
871
872
873
874
875
876
877
878
879
880
881
882
883
884
885
886
887
888
889
890
891
892
893
894
895
896
897
898
899
900
901
902
903
904
905
906
907
908
909
910
911
912
913
914
915
916
917
918
919
920
921
922
923
924
925
926
927
928
929
930
931
932
933
934
935
936
937
938
939
940
941
942
943
944
945
946
947
948
949
950
951
952
953
954
955
956
957
958
959
960
961
962
963
964
965
966
967
968
969
970
971
972
973
974
975
976
977
978
979
980
981
982
983
984
985
986
987
988
989
990
991
992
993
994
995
996
997
998
999
1000
1001
1002
1003
1004
1005
1006
1007
1008
1009
1010
1011
1012
1013
1014
1015
1016
1017
1018
1019
1020
1021
1022
1023
1024
1025
1026
1027
1028
1029
1030
1031
1032
1033
1034
1035
1036
1037
1038
1039
1040
1041
1042
1043
1044
1045
1046
1047
1048
1049
1050
1051
1052
1053
1054
1055
1056
1057
1058
1059
1060
1061
1062
1063
1064
1065
1066
1067
1068
1069
1070
1071
1072
1073
1074
1075
1076
1077
1078
1079
1080
1081
1082
1083
1084
1085
1086
1087
1088
1089
1090
1091
1092
1093
1094
1095
1096
1097
1098
1099
1100
1101
1102
1103
1104
1105
1106
1107
1108
1109
1110
1111
1112
1113
1114
1115
1116
1117
1118
1119
1120
1121
1122
1123
1124
1125
1126
1127
1128
1129
1130
1131
1132
1133
1134
1135
1136
1137
1138
1139
1140
1141
1142
1143
1144
1145
1146
1147
1148
1149
1150
1151
1152
1153
1154
1155
1156
1157
1158
1159
1160
1161
1162
1163
1164
1165
1166
1167
1168
1169
1170
1171
1172
1173
1174
1175
1176
1177
1178
1179
1180
1181
1182
1183
1184
1185
1186
1187
1188
1189
1190
1191
1192
1193
1194
1195
1196
1197
1198
1199
1200
1201
1202
1203
1204
1205
1206
1207
1208
1209
1210
1211
1212
1213
1214
1215
1216
1217
1218
1219
1220
1221
1222
1223
1224
1225
1226
1227
1228
1229
1230
1231
1232
1233
1234
1235
1236
1237
1238
1239
1240
1241
1242
1243
1244
1245
1246
1247
1248
1249
1250
1251
1252
1253
1254
1255
1256
1257
1258
1259
1260
1261
1262
1263
1264
1265
1266
1267
1268
1269
1270
1271
1272
1273
1274
1275
1276
1277
1278
1279
1280
1281
1282
1283
1284
1285
1286
1287
1288
1289
1290
1291
1292
1293
1294
1295
1296
1297
1298
1299
1300
1301
1302
1303
1304
1305
1306
1307
1308
/*
 *  linux/drivers/video/ps3fb.c -- PS3 GPU frame buffer device
 *
 *	Copyright (C) 2006 Sony Computer Entertainment Inc.
 *	Copyright 2006, 2007 Sony Corporation
 *
 *  This file is based on :
 *
 *  linux/drivers/video/vfb.c -- Virtual frame buffer device
 *
 *	Copyright (C) 2002 James Simmons
 *
 *	Copyright (C) 1997 Geert Uytterhoeven
 *
 *  This file is subject to the terms and conditions of the GNU General Public
 *  License. See the file COPYING in the main directory of this archive for
 *  more details.
 */

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/errno.h>
#include <linux/string.h>
#include <linux/mm.h>
#include <linux/interrupt.h>
#include <linux/console.h>
#include <linux/ioctl.h>
#include <linux/kthread.h>
#include <linux/freezer.h>
#include <linux/uaccess.h>
#include <linux/fb.h>
#include <linux/init.h>

#include <asm/cell-regs.h>
#include <asm/lv1call.h>
#include <asm/ps3av.h>
#include <asm/ps3fb.h>
#include <asm/ps3.h>
#include <asm/ps3gpu.h>


#define DEVICE_NAME		"ps3fb"

#define GPU_CMD_BUF_SIZE			(2 * 1024 * 1024)
#define GPU_FB_START				(64 * 1024)
#define GPU_IOIF				(0x0d000000UL)
#define GPU_ALIGN_UP(x)				_ALIGN_UP((x), 64)
#define GPU_MAX_LINE_LENGTH			(65536 - 64)

#define GPU_INTR_STATUS_VSYNC_0			0	/* vsync on head A */
#define GPU_INTR_STATUS_VSYNC_1			1	/* vsync on head B */
#define GPU_INTR_STATUS_FLIP_0			3	/* flip head A */
#define GPU_INTR_STATUS_FLIP_1			4	/* flip head B */
#define GPU_INTR_STATUS_QUEUE_0			5	/* queue head A */
#define GPU_INTR_STATUS_QUEUE_1			6	/* queue head B */

#define GPU_DRIVER_INFO_VERSION			0x211

/* gpu internals */
struct display_head {
	u64 be_time_stamp;
	u32 status;
	u32 offset;
	u32 res1;
	u32 res2;
	u32 field;
	u32 reserved1;

	u64 res3;
	u32 raster;

	u64 vblank_count;
	u32 field_vsync;
	u32 reserved2;
};

struct gpu_irq {
	u32 irq_outlet;
	u32 status;
	u32 mask;
	u32 video_cause;
	u32 graph_cause;
	u32 user_cause;

	u32 res1;
	u64 res2;

	u32 reserved[4];
};

struct gpu_driver_info {
	u32 version_driver;
	u32 version_gpu;
	u32 memory_size;
	u32 hardware_channel;

	u32 nvcore_frequency;
	u32 memory_frequency;

	u32 reserved[1063];
	struct display_head display_head[8];
	struct gpu_irq irq;
};

struct ps3fb_priv {
	unsigned int irq_no;

	u64 context_handle, memory_handle;
	struct gpu_driver_info *dinfo;

	u64 vblank_count;	/* frame count */
	wait_queue_head_t wait_vsync;

	atomic_t ext_flip;	/* on/off flip with vsync */
	atomic_t f_count;	/* fb_open count */
	int is_blanked;
	int is_kicked;
	struct task_struct *task;
};
static struct ps3fb_priv ps3fb;

struct ps3fb_par {
	u32 pseudo_palette[16];
	int mode_id, new_mode_id;
	unsigned int num_frames;	/* num of frame buffers */
	unsigned int width;
	unsigned int height;
	unsigned int ddr_line_length;
	unsigned int ddr_frame_size;
	unsigned int xdr_frame_size;
	unsigned int full_offset;	/* start of fullscreen DDR fb */
	unsigned int fb_offset;		/* start of actual DDR fb */
	unsigned int pan_offset;
};


#define FIRST_NATIVE_MODE_INDEX	10

static const struct fb_videomode ps3fb_modedb[] = {
    /* 60 Hz broadcast modes (modes "1" to "5") */
    {
        /* 480i */
        "480i", 60, 576, 384, 74074, 130, 89, 78, 57, 63, 6,
        FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
    },    {
        /* 480p */
        "480p", 60, 576, 384, 37037, 130, 89, 78, 57, 63, 6,
        FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
    },    {
        /* 720p */
        "720p", 60, 1124, 644, 13481, 298, 148, 57, 44, 80, 5,
        FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
    },    {
        /* 1080i */
        "1080i", 60, 1688, 964, 13481, 264, 160, 94, 62, 88, 5,
        FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
    },    {
        /* 1080p */
        "1080p", 60, 1688, 964, 6741, 264, 160, 94, 62, 88, 5,
        FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
    },

    /* 50 Hz broadcast modes (modes "6" to "10") */
    {
        /* 576i */
        "576i", 50, 576, 460, 74074, 142, 83, 97, 63, 63, 5,
        FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
    },    {
        /* 576p */
        "576p", 50, 576, 460, 37037, 142, 83, 97, 63, 63, 5,
        FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
    },    {
        /* 720p */
        "720p", 50, 1124, 644, 13468, 298, 478, 57, 44, 80, 5,
        FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
    },    {
        /* 1080i */
        "1080i", 50, 1688, 964, 13468, 264, 600, 94, 62, 88, 5,
        FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
    },    {
        /* 1080p */
        "1080p", 50, 1688, 964, 6734, 264, 600, 94, 62, 88, 5,
        FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
    },

    [FIRST_NATIVE_MODE_INDEX] =
    /* 60 Hz broadcast modes (full resolution versions of modes "1" to "5") */
    {
	/* 480if */
	"480if", 60, 720, 480, 74074, 58, 17, 30, 9, 63, 6,
	FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
    }, {
	/* 480pf */
	"480pf", 60, 720, 480, 37037, 58, 17, 30, 9, 63, 6,
	FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
    }, {
	/* 720pf */
	"720pf", 60, 1280, 720, 13481, 220, 70, 19, 6, 80, 5,
	FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
    }, {
	/* 1080if */
	"1080if", 60, 1920, 1080, 13481, 148, 44, 36, 4, 88, 5,
	FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
    }, {
	/* 1080pf */
	"1080pf", 60, 1920, 1080, 6741, 148, 44, 36, 4, 88, 5,
	FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
    },

    /* 50 Hz broadcast modes (full resolution versions of modes "6" to "10") */
    {
	/* 576if */
	"576if", 50, 720, 576, 74074, 70, 11, 39, 5, 63, 5,
	FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
    }, {
	/* 576pf */
	"576pf", 50, 720, 576, 37037, 70, 11, 39, 5, 63, 5,
	FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
    }, {
	/* 720pf */
	"720pf", 50, 1280, 720, 13468, 220, 400, 19, 6, 80, 5,
	FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
    }, {
	/* 1080if */
	"1080if", 50, 1920, 1080, 13468, 148, 484, 36, 4, 88, 5,
	FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
    }, {
	/* 1080pf */
	"1080pf", 50, 1920, 1080, 6734, 148, 484, 36, 4, 88, 5,
	FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
    },

    /* VESA modes (modes "11" to "13") */
    {
	/* WXGA */
	"wxga", 60, 1280, 768, 12924, 160, 24, 29, 3, 136, 6,
	0, FB_VMODE_NONINTERLACED,
	FB_MODE_IS_VESA
    }, {
	/* SXGA */
	"sxga", 60, 1280, 1024, 9259, 248, 48, 38, 1, 112, 3,
	FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED,
	FB_MODE_IS_VESA
    }, {
	/* WUXGA */
	"wuxga", 60, 1920, 1200, 6494, 80, 48, 26, 3, 32, 6,
	FB_SYNC_HOR_HIGH_ACT, FB_VMODE_NONINTERLACED,
	FB_MODE_IS_VESA
    }
};


#define HEAD_A
#define HEAD_B

#define BPP		4			/* number of bytes per pixel */


static int ps3fb_mode;
module_param(ps3fb_mode, int, 0);

static char *mode_option __devinitdata;

static int ps3fb_cmp_mode(const struct fb_videomode *vmode,
			  const struct fb_var_screeninfo *var)
{
	long xres, yres, left_margin, right_margin, upper_margin, lower_margin;
	long dx, dy;

	/* maximum values */
	if (var->xres > vmode->xres || var->yres > vmode->yres ||
	    var->pixclock > vmode->pixclock ||
	    var->hsync_len > vmode->hsync_len ||
	    var->vsync_len > vmode->vsync_len)
		return -1;

	/* progressive/interlaced must match */
	if ((var->vmode & FB_VMODE_MASK) != vmode->vmode)
		return -1;

	/* minimum resolution */
	xres = max(var->xres, 1U);
	yres = max(var->yres, 1U);

	/* minimum margins */
	left_margin = max(var->left_margin, vmode->left_margin);
	right_margin = max(var->right_margin, vmode->right_margin);
	upper_margin = max(var->upper_margin, vmode->upper_margin);
	lower_margin = max(var->lower_margin, vmode->lower_margin);

	/* resolution + margins may not exceed native parameters */
	dx = ((long)vmode->left_margin + (long)vmode->xres +
	      (long)vmode->right_margin) -
	     (left_margin + xres + right_margin);
	if (dx < 0)
		return -1;

	dy = ((long)vmode->upper_margin + (long)vmode->yres +
	      (long)vmode->lower_margin) -
	     (upper_margin + yres + lower_margin);
	if (dy < 0)
		return -1;

	/* exact match */
	if (!dx && !dy)
		return 0;

	/* resolution difference */
	return (vmode->xres - xres) * (vmode->yres - yres);
}

static const struct fb_videomode *ps3fb_native_vmode(enum ps3av_mode_num id)
{
	return &ps3fb_modedb[FIRST_NATIVE_MODE_INDEX + id - 1];
}

static const struct fb_videomode *ps3fb_vmode(int id)
{
	u32 mode = id & PS3AV_MODE_MASK;

	if (mode < PS3AV_MODE_480I || mode > PS3AV_MODE_WUXGA)
		return NULL;

	if (mode <= PS3AV_MODE_1080P50 && !(id & PS3AV_MODE_FULL)) {
		/* Non-fullscreen broadcast mode */
		return &ps3fb_modedb[mode - 1];
	}

	return ps3fb_native_vmode(mode);
}

static unsigned int ps3fb_find_mode(struct fb_var_screeninfo *var,
				    u32 *ddr_line_length, u32 *xdr_line_length)
{
	unsigned int id, best_id;
	int diff, best_diff;
	const struct fb_videomode *vmode;
	long gap;

	best_id = 0;
	best_diff = INT_MAX;
	pr_debug("%s: wanted %u [%u] %u x %u [%u] %u\n", __func__,
		 var->left_margin, var->xres, var->right_margin,
		 var->upper_margin, var->yres, var->lower_margin);
	for (id = PS3AV_MODE_480I; id <= PS3AV_MODE_WUXGA; id++) {
		vmode = ps3fb_native_vmode(id);
		diff = ps3fb_cmp_mode(vmode, var);
		pr_debug("%s: mode %u: %u [%u] %u x %u [%u] %u: diff = %d\n",
			 __func__, id, vmode->left_margin, vmode->xres,
			 vmode->right_margin, vmode->upper_margin,
			 vmode->yres, vmode->lower_margin, diff);
		if (diff < 0)
			continue;
		if (diff < best_diff) {
			best_id = id;
			if (!diff)
				break;
			best_diff = diff;
		}
	}

	if (!best_id) {
		pr_debug("%s: no suitable mode found\n", __func__);
		return 0;
	}

	id = best_id;
	vmode = ps3fb_native_vmode(id);

	*ddr_line_length = vmode->xres * BPP;

	/* minimum resolution */
	if (!var->xres)
		var->xres = 1;
	if (!var->yres)
		var->yres = 1;

	/* minimum virtual resolution */
	if (var->xres_virtual < var->xres)
		var->xres_virtual = var->xres;
	if (var->yres_virtual < var->yres)
		var->yres_virtual = var->yres;

	/* minimum margins */
	if (var->left_margin < vmode->left_margin)
		var->left_margin = vmode->left_margin;
	if (var->right_margin < vmode->right_margin)
		var->right_margin = vmode->right_margin;
	if (var->upper_margin < vmode->upper_margin)
		var->upper_margin = vmode->upper_margin;
	if (var->lower_margin < vmode->lower_margin)
		var->lower_margin = vmode->lower_margin;

	/* extra margins */
	gap = ((long)vmode->left_margin + (long)vmode->xres +
	       (long)vmode->right_margin) -
	      ((long)var->left_margin + (long)var->xres +
	       (long)var->right_margin);
	if (gap > 0) {
		var->left_margin += gap/2;
		var->right_margin += (gap+1)/2;
		pr_debug("%s: rounded up H to %u [%u] %u\n", __func__,
			 var->left_margin, var->xres, var->right_margin);
	}

	gap = ((long)vmode->upper_margin + (long)vmode->yres +
	       (long)vmode->lower_margin) -
	      ((long)var->upper_margin + (long)var->yres +
	       (long)var->lower_margin);
	if (gap > 0) {
		var->upper_margin += gap/2;
		var->lower_margin += (gap+1)/2;
		pr_debug("%s: rounded up V to %u [%u] %u\n", __func__,
			 var->upper_margin, var->yres, var->lower_margin);
	}

	/* fixed fields */
	var->pixclock = vmode->pixclock;
	var->hsync_len = vmode->hsync_len;
	var->vsync_len = vmode->vsync_len;
	var->sync = vmode->sync;

	if (ps3_compare_firmware_version(1, 9, 0) >= 0) {
		*xdr_line_length = GPU_ALIGN_UP(var->xres_virtual * BPP);
		if (*xdr_line_length > GPU_MAX_LINE_LENGTH)
			*xdr_line_length = GPU_MAX_LINE_LENGTH;
	} else
		*xdr_line_length = *ddr_line_length;

	if (vmode->sync & FB_SYNC_BROADCAST) {
		/* Full broadcast modes have the full mode bit set */
		if (vmode->xres == var->xres && vmode->yres == var->yres)
			id |= PS3AV_MODE_FULL;
	}

	pr_debug("%s: mode %u\n", __func__, id);
	return id;
}

static void ps3fb_sync_image(struct device *dev, u64 frame_offset,
			     u64 dst_offset, u64 src_offset, u32 width,
			     u32 height, u32 dst_line_length,
			     u32 src_line_length)
{
	int status;
	u64 line_length;

	line_length = dst_line_length;
	if (src_line_length != dst_line_length)
		line_length |= (u64)src_line_length << 32;

	src_offset += GPU_FB_START;

	mutex_lock(&ps3_gpu_mutex);
	status = lv1_gpu_fb_blit(ps3fb.context_handle, dst_offset,
				 GPU_IOIF + src_offset,
				 L1GPU_FB_BLIT_WAIT_FOR_COMPLETION |
				 (width << 16) | height,
				 line_length);
	mutex_unlock(&ps3_gpu_mutex);

	if (status)
		dev_err(dev, "%s: lv1_gpu_fb_blit failed: %d\n", __func__,
			status);
#ifdef HEAD_A
	status = lv1_gpu_display_flip(ps3fb.context_handle, 0, frame_offset);
	if (status)
		dev_err(dev, "%s: lv1_gpu_display_flip failed: %d\n", __func__,
			status);
#endif
#ifdef HEAD_B
	status = lv1_gpu_display_flip(ps3fb.context_handle, 1, frame_offset);
	if (status)
		dev_err(dev, "%s: lv1_gpu_display_flip failed: %d\n", __func__,
			status);
#endif
}

static int ps3fb_sync(struct fb_info *info, u32 frame)
{
	struct ps3fb_par *par = info->par;
	int error = 0;
	u64 ddr_base, xdr_base;

	if (frame > par->num_frames - 1) {
		dev_dbg(info->device, "%s: invalid frame number (%u)\n",
			__func__, frame);
		error = -EINVAL;
		goto out;
	}

	xdr_base = frame * par->xdr_frame_size;
	ddr_base = frame * par->ddr_frame_size;

	ps3fb_sync_image(info->device, ddr_base + par->full_offset,
			 ddr_base + par->fb_offset, xdr_base + par->pan_offset,
			 par->width, par->height, par->ddr_line_length,
			 info->fix.line_length);

out:
	return error;
}

static int ps3fb_open(struct fb_info *info, int user)
{
	atomic_inc(&ps3fb.f_count);
	return 0;
}

static int ps3fb_release(struct fb_info *info, int user)
{
	if (atomic_dec_and_test(&ps3fb.f_count)) {
		if (atomic_read(&ps3fb.ext_flip)) {
			atomic_set(&ps3fb.ext_flip, 0);
			if (console_trylock()) {
				ps3fb_sync(info, 0);	/* single buffer */
				console_unlock();
			}
		}
	}
	return 0;
}

    /*
     *  Setting the video mode has been split into two parts.
     *  First part, xxxfb_check_var, must not write anything
     *  to hardware, it should only verify and adjust var.
     *  This means it doesn't alter par but it does use hardware
     *  data from it to check this var.
     */

static int ps3fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
{
	u32 xdr_line_length, ddr_line_length;
	int mode;

	mode = ps3fb_find_mode(var, &ddr_line_length, &xdr_line_length);
	if (!mode)
		return -EINVAL;

	/* Virtual screen */
	if (var->xres_virtual > xdr_line_length / BPP) {
		dev_dbg(info->device,
			"Horizontal virtual screen size too large\n");
		return -EINVAL;
	}

	if (var->xoffset + var->xres > var->xres_virtual ||
	    var->yoffset + var->yres > var->yres_virtual) {
		dev_dbg(info->device, "panning out-of-range\n");
		return -EINVAL;
	}

	/* We support ARGB8888 only */
	if (var->bits_per_pixel > 32 || var->grayscale ||
	    var->red.offset > 16 || var->green.offset > 8 ||
	    var->blue.offset > 0 || var->transp.offset > 24 ||
	    var->red.length > 8 || var->green.length > 8 ||
	    var->blue.length > 8 || var->transp.length > 8 ||
	    var->red.msb_right || var->green.msb_right ||
	    var->blue.msb_right || var->transp.msb_right || var->nonstd) {
		dev_dbg(info->device, "We support ARGB8888 only\n");
		return -EINVAL;
	}

	var->bits_per_pixel = 32;
	var->red.offset = 16;
	var->green.offset = 8;
	var->blue.offset = 0;
	var->transp.offset = 24;
	var->red.length = 8;
	var->green.length = 8;
	var->blue.length = 8;
	var->transp.length = 8;
	var->red.msb_right = 0;
	var->green.msb_right = 0;
	var->blue.msb_right = 0;
	var->transp.msb_right = 0;

	/* Rotation is not supported */
	if (var->rotate) {
		dev_dbg(info->device, "Rotation is not supported\n");
		return -EINVAL;
	}

	/* Memory limit */
	if (var->yres_virtual * xdr_line_length > info->fix.smem_len) {
		dev_dbg(info->device, "Not enough memory\n");
		return -ENOMEM;
	}

	var->height = -1;
	var->width = -1;

	return 0;
}

    /*
     * This routine actually sets the video mode.
     */

static int ps3fb_set_par(struct fb_info *info)
{
	struct ps3fb_par *par = info->par;
	unsigned int mode, ddr_line_length, xdr_line_length, lines, maxlines;
	unsigned int ddr_xoff, ddr_yoff, offset;
	const struct fb_videomode *vmode;
	u64 dst;

	mode = ps3fb_find_mode(&info->var, &ddr_line_length, &xdr_line_length);
	if (!mode)
		return -EINVAL;

	vmode = ps3fb_native_vmode(mode & PS3AV_MODE_MASK);

	info->fix.xpanstep = info->var.xres_virtual > info->var.xres ? 1 : 0;
	info->fix.ypanstep = info->var.yres_virtual > info->var.yres ? 1 : 0;
	info->fix.line_length = xdr_line_length;

	par->ddr_line_length = ddr_line_length;
	par->ddr_frame_size = vmode->yres * ddr_line_length;
	par->xdr_frame_size = info->var.yres_virtual * xdr_line_length;

	par->num_frames = info->fix.smem_len /
			  max(par->ddr_frame_size, par->xdr_frame_size);

	/* Keep the special bits we cannot set using fb_var_screeninfo */
	par->new_mode_id = (par->new_mode_id & ~PS3AV_MODE_MASK) | mode;

	par->width = info->var.xres;
	par->height = info->var.yres;

	/* Start of the virtual frame buffer (relative to fullscreen) */
	ddr_xoff = info->var.left_margin - vmode->left_margin;
	ddr_yoff = info->var.upper_margin - vmode->upper_margin;
	offset = ddr_yoff * ddr_line_length + ddr_xoff * BPP;

	par->fb_offset = GPU_ALIGN_UP(offset);
	par->full_offset = par->fb_offset - offset;
	par->pan_offset = info->var.yoffset * xdr_line_length +
			  info->var.xoffset * BPP;

	if (par->new_mode_id != par->mode_id) {
		if (ps3av_set_video_mode(par->new_mode_id)) {
			par->new_mode_id = par->mode_id;
			return -EINVAL;
		}
		par->mode_id = par->new_mode_id;
	}

	/* Clear XDR frame buffer memory */
	memset((void __force *)info->screen_base, 0, info->fix.smem_len);

	/* Clear DDR frame buffer memory */
	lines = vmode->yres * par->num_frames;
	if (par->full_offset)
		lines++;
	maxlines = info->fix.smem_len / ddr_line_length;
	for (dst = 0; lines; dst += maxlines * ddr_line_length) {
		unsigned int l = min(lines, maxlines);
		ps3fb_sync_image(info->device, 0, dst, 0, vmode->xres, l,
				 ddr_line_length, ddr_line_length);
		lines -= l;
	}

	return 0;
}

    /*
     *  Set a single color register. The values supplied are already
     *  rounded down to the hardware's capabilities (according to the
     *  entries in the var structure). Return != 0 for invalid regno.
     */

static int ps3fb_setcolreg(unsigned int regno, unsigned int red,
			   unsigned int green, unsigned int blue,
			   unsigned int transp, struct fb_info *info)
{
	if (regno >= 16)
		return 1;

	red >>= 8;
	green >>= 8;
	blue >>= 8;
	transp >>= 8;

	((u32 *)info->pseudo_palette)[regno] = transp << 24 | red << 16 |
					       green << 8 | blue;
	return 0;
}

static int ps3fb_pan_display(struct fb_var_screeninfo *var,
			     struct fb_info *info)
{
	struct ps3fb_par *par = info->par;

	par->pan_offset = var->yoffset * info->fix.line_length +
			  var->xoffset * BPP;
	return 0;
}

    /*
     *  As we have a virtual frame buffer, we need our own mmap function
     */

static int ps3fb_mmap(struct fb_info *info, struct vm_area_struct *vma)
{
	unsigned long size, offset;

	size = vma->vm_end - vma->vm_start;
	offset = vma->vm_pgoff << PAGE_SHIFT;
	if (offset + size > info->fix.smem_len)
		return -EINVAL;

	offset += info->fix.smem_start;
	if (remap_pfn_range(vma, vma->vm_start, offset >> PAGE_SHIFT,
			    size, vma->vm_page_prot))
		return -EAGAIN;

	dev_dbg(info->device, "ps3fb: mmap framebuffer P(%lx)->V(%lx)\n",
		offset, vma->vm_start);
	return 0;
}

    /*
     * Blank the display
     */

static int ps3fb_blank(int blank, struct fb_info *info)
{
	int retval;

	dev_dbg(info->device, "%s: blank:%d\n", __func__, blank);
	switch (blank) {
	case FB_BLANK_POWERDOWN:
	case FB_BLANK_HSYNC_SUSPEND:
	case FB_BLANK_VSYNC_SUSPEND:
	case FB_BLANK_NORMAL:
		retval = ps3av_video_mute(1);	/* mute on */
		if (!retval)
			ps3fb.is_blanked = 1;
		break;

	default:		/* unblank */
		retval = ps3av_video_mute(0);	/* mute off */
		if (!retval)
			ps3fb.is_blanked = 0;
		break;
	}
	return retval;
}

static int ps3fb_get_vblank(struct fb_vblank *vblank)
{
	memset(vblank, 0, sizeof(*vblank));
	vblank->flags = FB_VBLANK_HAVE_VSYNC;
	return 0;
}

static int ps3fb_wait_for_vsync(u32 crtc)
{
	int ret;
	u64 count;

	count = ps3fb.vblank_count;
	ret = wait_event_interruptible_timeout(ps3fb.wait_vsync,
					       count != ps3fb.vblank_count,
					       HZ / 10);
	if (!ret)
		return -ETIMEDOUT;

	return 0;
}


    /*
     * ioctl
     */

static int ps3fb_ioctl(struct fb_info *info, unsigned int cmd,
		       unsigned long arg)
{
	void __user *argp = (void __user *)arg;
	u32 val;
	int retval = -EFAULT;

	switch (cmd) {
	case FBIOGET_VBLANK:
		{
			struct fb_vblank vblank;
			dev_dbg(info->device, "FBIOGET_VBLANK:\n");
			retval = ps3fb_get_vblank(&vblank);
			if (retval)
				break;

			if (copy_to_user(argp, &vblank, sizeof(vblank)))
				retval = -EFAULT;
			break;
		}

	case FBIO_WAITFORVSYNC:
		{
			u32 crt;
			dev_dbg(info->device, "FBIO_WAITFORVSYNC:\n");
			if (get_user(crt, (u32 __user *) arg))
				break;

			retval = ps3fb_wait_for_vsync(crt);
			break;
		}

	case PS3FB_IOCTL_SETMODE:
		{
			struct ps3fb_par *par = info->par;
			const struct fb_videomode *vmode;
			struct fb_var_screeninfo var;

			if (copy_from_user(&val, argp, sizeof(val)))
				break;

			if (!(val & PS3AV_MODE_MASK)) {
				u32 id = ps3av_get_auto_mode();
				if (id > 0)
					val = (val & ~PS3AV_MODE_MASK) | id;
			}
			dev_dbg(info->device, "PS3FB_IOCTL_SETMODE:%x\n", val);
			retval = -EINVAL;
			vmode = ps3fb_vmode(val);
			if (vmode) {
				var = info->var;
				fb_videomode_to_var(&var, vmode);
				console_lock();
				info->flags |= FBINFO_MISC_USEREVENT;
				/* Force, in case only special bits changed */
				var.activate |= FB_ACTIVATE_FORCE;
				par->new_mode_id = val;
				retval = fb_set_var(info, &var);
				info->flags &= ~FBINFO_MISC_USEREVENT;
				console_unlock();
			}
			break;
		}

	case PS3FB_IOCTL_GETMODE:
		val = ps3av_get_mode();
		dev_dbg(info->device, "PS3FB_IOCTL_GETMODE:%x\n", val);
		if (!copy_to_user(argp, &val, sizeof(val)))
			retval = 0;
		break;

	case PS3FB_IOCTL_SCREENINFO:
		{
			struct ps3fb_par *par = info->par;
			struct ps3fb_ioctl_res res;
			dev_dbg(info->device, "PS3FB_IOCTL_SCREENINFO:\n");
			res.xres = info->fix.line_length / BPP;
			res.yres = info->var.yres_virtual;
			res.xoff = (res.xres - info->var.xres) / 2;
			res.yoff = (res.yres - info->var.yres) / 2;
			res.num_frames = par->num_frames;
			if (!copy_to_user(argp, &res, sizeof(res)))
				retval = 0;
			break;
		}

	case PS3FB_IOCTL_ON:
		dev_dbg(info->device, "PS3FB_IOCTL_ON:\n");
		atomic_inc(&ps3fb.ext_flip);
		retval = 0;
		break;

	case PS3FB_IOCTL_OFF:
		dev_dbg(info->device, "PS3FB_IOCTL_OFF:\n");
		atomic_dec_if_positive(&ps3fb.ext_flip);
		retval = 0;
		break;

	case PS3FB_IOCTL_FSEL:
		if (copy_from_user(&val, argp, sizeof(val)))
			break;

		dev_dbg(info->device, "PS3FB_IOCTL_FSEL:%d\n", val);
		console_lock();
		retval = ps3fb_sync(info, val);
		console_unlock();
		break;

	default:
		retval = -ENOIOCTLCMD;
		break;
	}
	return retval;
}

static int ps3fbd(void *arg)
{
	struct fb_info *info = arg;

	set_freezable();
	while (!kthread_should_stop()) {
		try_to_freeze();
		set_current_state(TASK_INTERRUPTIBLE);
		if (ps3fb.is_kicked) {
			ps3fb.is_kicked = 0;
			console_lock();
			ps3fb_sync(info, 0);	/* single buffer */
			console_unlock();
		}
		schedule();
	}
	return 0;
}

static irqreturn_t ps3fb_vsync_interrupt(int irq, void *ptr)
{
	struct device *dev = ptr;
	u64 v1;
	int status;
	struct display_head *head = &ps3fb.dinfo->display_head[1];

	status = lv1_gpu_context_intr(ps3fb.context_handle, &v1);
	if (status) {
		dev_err(dev, "%s: lv1_gpu_context_intr failed: %d\n", __func__,
			status);
		return IRQ_NONE;
	}

	if (v1 & (1 << GPU_INTR_STATUS_VSYNC_1)) {
		/* VSYNC */
		ps3fb.vblank_count = head->vblank_count;
		if (ps3fb.task && !ps3fb.is_blanked &&
		    !atomic_read(&ps3fb.ext_flip)) {
			ps3fb.is_kicked = 1;
			wake_up_process(ps3fb.task);
		}
		wake_up_interruptible(&ps3fb.wait_vsync);
	}

	return IRQ_HANDLED;
}


static struct fb_ops ps3fb_ops = {
	.fb_open	= ps3fb_open,
	.fb_release	= ps3fb_release,
	.fb_read        = fb_sys_read,
	.fb_write       = fb_sys_write,
	.fb_check_var	= ps3fb_check_var,
	.fb_set_par	= ps3fb_set_par,
	.fb_setcolreg	= ps3fb_setcolreg,
	.fb_pan_display	= ps3fb_pan_display,
	.fb_fillrect	= sys_fillrect,
	.fb_copyarea	= sys_copyarea,
	.fb_imageblit	= sys_imageblit,
	.fb_mmap	= ps3fb_mmap,
	.fb_blank	= ps3fb_blank,
	.fb_ioctl	= ps3fb_ioctl,
	.fb_compat_ioctl = ps3fb_ioctl
};

static struct fb_fix_screeninfo ps3fb_fix __initdata = {
	.id =		DEVICE_NAME,
	.type =		FB_TYPE_PACKED_PIXELS,
	.visual =	FB_VISUAL_TRUECOLOR,
	.accel =	FB_ACCEL_NONE,
};

static int __devinit ps3fb_probe(struct ps3_system_bus_device *dev)
{
	struct fb_info *info;
	struct ps3fb_par *par;
	int retval;
	u64 ddr_lpar = 0;
	u64 lpar_dma_control = 0;
	u64 lpar_driver_info = 0;
	u64 lpar_reports = 0;
	u64 lpar_reports_size = 0;
	u64 xdr_lpar;
	struct gpu_driver_info *dinfo;
	void *fb_start;
	int status;
	struct task_struct *task;
	unsigned long max_ps3fb_size;

	if (ps3fb_videomemory.size < GPU_CMD_BUF_SIZE) {
		dev_err(&dev->core, "%s: Not enough video memory\n", __func__);
		return -ENOMEM;
	}

	retval = ps3_open_hv_device(dev);
	if (retval) {
		dev_err(&dev->core, "%s: ps3_open_hv_device failed\n",
			__func__);
		goto err;
	}

	if (!ps3fb_mode)
		ps3fb_mode = ps3av_get_mode();
	dev_dbg(&dev->core, "ps3fb_mode: %d\n", ps3fb_mode);

	atomic_set(&ps3fb.f_count, -1);	/* fbcon opens ps3fb */
	atomic_set(&ps3fb.ext_flip, 0);	/* for flip with vsync */
	init_waitqueue_head(&ps3fb.wait_vsync);

#ifdef HEAD_A
	status = lv1_gpu_display_sync(0x0, 0, L1GPU_DISPLAY_SYNC_VSYNC);
	if (status) {
		dev_err(&dev->core, "%s: lv1_gpu_display_sync failed: %d\n",
			__func__, status);
		retval = -ENODEV;
		goto err_close_device;
	}
#endif
#ifdef HEAD_B
	status = lv1_gpu_display_sync(0x0, 1, L1GPU_DISPLAY_SYNC_VSYNC);
	if (status) {
		dev_err(&dev->core, "%s: lv1_gpu_display_sync failed: %d\n",
			__func__, status);
		retval = -ENODEV;
		goto err_close_device;
	}
#endif

	max_ps3fb_size = _ALIGN_UP(GPU_IOIF, 256*1024*1024) - GPU_IOIF;
	if (ps3fb_videomemory.size > max_ps3fb_size) {
		dev_info(&dev->core, "Limiting ps3fb mem size to %lu bytes\n",
			 max_ps3fb_size);
		ps3fb_videomemory.size = max_ps3fb_size;
	}

	/* get gpu context handle */
	status = lv1_gpu_memory_allocate(ps3fb_videomemory.size, 0, 0, 0, 0,
					 &ps3fb.memory_handle, &ddr_lpar);
	if (status) {
		dev_err(&dev->core, "%s: lv1_gpu_memory_allocate failed: %d\n",
			__func__, status);
		goto err_close_device;
	}
	dev_dbg(&dev->core, "ddr:lpar:0x%llx\n", ddr_lpar);

	status = lv1_gpu_context_allocate(ps3fb.memory_handle, 0,
					  &ps3fb.context_handle,
					  &lpar_dma_control, &lpar_driver_info,
					  &lpar_reports, &lpar_reports_size);
	if (status) {
		dev_err(&dev->core,
			"%s: lv1_gpu_context_allocate failed: %d\n", __func__,
			status);
		goto err_gpu_memory_free;
	}

	/* vsync interrupt */
	dinfo = (void __force *)ioremap(lpar_driver_info, 128 * 1024);
	if (!dinfo) {
		dev_err(&dev->core, "%s: ioremap failed\n", __func__);
		goto err_gpu_context_free;
	}

	ps3fb.dinfo = dinfo;
	dev_dbg(&dev->core, "version_driver:%x\n", dinfo->version_driver);
	dev_dbg(&dev->core, "irq outlet:%x\n", dinfo->irq.irq_outlet);
	dev_dbg(&dev->core, "version_gpu: %x memory_size: %x ch: %x "
		"core_freq: %d mem_freq:%d\n", dinfo->version_gpu,
		dinfo->memory_size, dinfo->hardware_channel,
		dinfo->nvcore_frequency/1000000,
		dinfo->memory_frequency/1000000);

	if (dinfo->version_driver != GPU_DRIVER_INFO_VERSION) {
		dev_err(&dev->core, "%s: version_driver err:%x\n", __func__,
			dinfo->version_driver);
		retval = -EINVAL;
		goto err_iounmap_dinfo;
	}

	retval = ps3_irq_plug_setup(PS3_BINDING_CPU_ANY, dinfo->irq.irq_outlet,
				    &ps3fb.irq_no);
	if (retval) {
		dev_err(&dev->core, "%s: ps3_alloc_irq failed %d\n", __func__,
			retval);
		goto err_iounmap_dinfo;
	}

	retval = request_irq(ps3fb.irq_no, ps3fb_vsync_interrupt,
			     0, DEVICE_NAME, &dev->core);
	if (retval) {
		dev_err(&dev->core, "%s: request_irq failed %d\n", __func__,
			retval);
		goto err_destroy_plug;
	}

	dinfo->irq.mask = (1 << GPU_INTR_STATUS_VSYNC_1) |
			  (1 << GPU_INTR_STATUS_FLIP_1);

	/* Clear memory to prevent kernel info leakage into userspace */
	memset(ps3fb_videomemory.address, 0, ps3fb_videomemory.size);

	xdr_lpar = ps3_mm_phys_to_lpar(__pa(ps3fb_videomemory.address));

	status = lv1_gpu_context_iomap(ps3fb.context_handle, GPU_IOIF,
				       xdr_lpar, ps3fb_videomemory.size,
				       CBE_IOPTE_PP_W | CBE_IOPTE_PP_R |
				       CBE_IOPTE_M);
	if (status) {
		dev_err(&dev->core, "%s: lv1_gpu_context_iomap failed: %d\n",
			__func__, status);
		retval =  -ENXIO;
		goto err_free_irq;
	}

	dev_dbg(&dev->core, "video:%p ioif:%lx lpar:%llx size:%lx\n",
		ps3fb_videomemory.address, GPU_IOIF, xdr_lpar,
		ps3fb_videomemory.size);

	status = lv1_gpu_fb_setup(ps3fb.context_handle, xdr_lpar,
				  GPU_CMD_BUF_SIZE, GPU_IOIF);
	if (status) {
		dev_err(&dev->core, "%s: lv1_gpu_fb_setup failed: %d\n",
			__func__, status);
		retval = -ENXIO;
		goto err_context_unmap;
	}

	info = framebuffer_alloc(sizeof(struct ps3fb_par), &dev->core);
	if (!info)
		goto err_context_fb_close;

	par = info->par;
	par->mode_id = ~ps3fb_mode;	/* != ps3fb_mode, to trigger change */
	par->new_mode_id = ps3fb_mode;
	par->num_frames = 1;

	info->fbops = &ps3fb_ops;
	info->fix = ps3fb_fix;

	/*
	 * The GPU command buffer is at the start of video memory
	 * As we don't use the full command buffer, we can put the actual
	 * frame buffer at offset GPU_FB_START and save some precious XDR
	 * memory
	 */
	fb_start = ps3fb_videomemory.address + GPU_FB_START;
	info->screen_base = (char __force __iomem *)fb_start;
	info->fix.smem_start = __pa(fb_start);
	info->fix.smem_len = ps3fb_videomemory.size - GPU_FB_START;

	info->pseudo_palette = par->pseudo_palette;
	info->flags = FBINFO_DEFAULT | FBINFO_READS_FAST |
		      FBINFO_HWACCEL_XPAN | FBINFO_HWACCEL_YPAN;

	retval = fb_alloc_cmap(&info->cmap, 256, 0);
	if (retval < 0)
		goto err_framebuffer_release;

	if (!fb_find_mode(&info->var, info, mode_option, ps3fb_modedb,
			  ARRAY_SIZE(ps3fb_modedb),
			  ps3fb_vmode(par->new_mode_id), 32)) {
		retval = -EINVAL;
		goto err_fb_dealloc;
	}

	fb_videomode_to_modelist(ps3fb_modedb, ARRAY_SIZE(ps3fb_modedb),
				 &info->modelist);

	retval = register_framebuffer(info);
	if (retval < 0)
		goto err_fb_dealloc;

	ps3_system_bus_set_drvdata(dev, info);

	dev_info(info->device, "%s %s, using %u KiB of video memory\n",
		 dev_driver_string(info->dev), dev_name(info->dev),
		 info->fix.smem_len >> 10);

	task = kthread_run(ps3fbd, info, DEVICE_NAME);
	if (IS_ERR(task)) {
		retval = PTR_ERR(task);
		goto err_unregister_framebuffer;
	}

	ps3fb.task = task;

	return 0;

err_unregister_framebuffer:
	unregister_framebuffer(info);
err_fb_dealloc:
	fb_dealloc_cmap(&info->cmap);
err_framebuffer_release:
	framebuffer_release(info);
err_context_fb_close:
	lv1_gpu_fb_close(ps3fb.context_handle);
err_context_unmap:
	lv1_gpu_context_iomap(ps3fb.context_handle, GPU_IOIF, xdr_lpar,
			      ps3fb_videomemory.size, CBE_IOPTE_M);
err_free_irq:
	free_irq(ps3fb.irq_no, &dev->core);
err_destroy_plug:
	ps3_irq_plug_destroy(ps3fb.irq_no);
err_iounmap_dinfo:
	iounmap((u8 __force __iomem *)ps3fb.dinfo);
err_gpu_context_free:
	lv1_gpu_context_free(ps3fb.context_handle);
err_gpu_memory_free:
	lv1_gpu_memory_free(ps3fb.memory_handle);
err_close_device:
	ps3_close_hv_device(dev);
err:
	return retval;
}

static int ps3fb_shutdown(struct ps3_system_bus_device *dev)
{
	struct fb_info *info = ps3_system_bus_get_drvdata(dev);
	u64 xdr_lpar = ps3_mm_phys_to_lpar(__pa(ps3fb_videomemory.address));

	dev_dbg(&dev->core, " -> %s:%d\n", __func__, __LINE__);

	atomic_inc(&ps3fb.ext_flip);	/* flip off */
	ps3fb.dinfo->irq.mask = 0;

	if (ps3fb.task) {
		struct task_struct *task = ps3fb.task;
		ps3fb.task = NULL;
		kthread_stop(task);
	}
	if (ps3fb.irq_no) {
		free_irq(ps3fb.irq_no, &dev->core);
		ps3_irq_plug_destroy(ps3fb.irq_no);
	}
	if (info) {
		unregister_framebuffer(info);
		fb_dealloc_cmap(&info->cmap);
		framebuffer_release(info);
		ps3_system_bus_set_drvdata(dev, NULL);
	}
	iounmap((u8 __force __iomem *)ps3fb.dinfo);
	lv1_gpu_fb_close(ps3fb.context_handle);
	lv1_gpu_context_iomap(ps3fb.context_handle, GPU_IOIF, xdr_lpar,
			      ps3fb_videomemory.size, CBE_IOPTE_M);
	lv1_gpu_context_free(ps3fb.context_handle);
	lv1_gpu_memory_free(ps3fb.memory_handle);
	ps3_close_hv_device(dev);
	dev_dbg(&dev->core, " <- %s:%d\n", __func__, __LINE__);

	return 0;
}

static struct ps3_system_bus_driver ps3fb_driver = {
	.match_id	= PS3_MATCH_ID_GPU,
	.match_sub_id	= PS3_MATCH_SUB_ID_GPU_FB,
	.core.name	= DEVICE_NAME,
	.core.owner	= THIS_MODULE,
	.probe		= ps3fb_probe,
	.remove		= ps3fb_shutdown,
	.shutdown	= ps3fb_shutdown,
};

static int __init ps3fb_setup(void)
{
	char *options;

#ifdef MODULE
	return 0;
#endif

	if (fb_get_options(DEVICE_NAME, &options))
		return -ENXIO;

	if (!options || !*options)
		return 0;

	while (1) {
		char *this_opt = strsep(&options, ",");

		if (!this_opt)
			break;
		if (!*this_opt)
			continue;
		if (!strncmp(this_opt, "mode:", 5))
			ps3fb_mode = simple_strtoul(this_opt + 5, NULL, 0);
		else
			mode_option = this_opt;
	}
	return 0;
}

static int __init ps3fb_init(void)
{
	if (!ps3fb_videomemory.address ||  ps3fb_setup())
		return -ENXIO;

	return ps3_system_bus_driver_register(&ps3fb_driver);
}

static void __exit ps3fb_exit(void)
{
	pr_debug(" -> %s:%d\n", __func__, __LINE__);
	ps3_system_bus_driver_unregister(&ps3fb_driver);
	pr_debug(" <- %s:%d\n", __func__, __LINE__);
}

module_init(ps3fb_init);
module_exit(ps3fb_exit);

MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("PS3 GPU Frame Buffer Driver");
MODULE_AUTHOR("Sony Computer Entertainment Inc.");
MODULE_ALIAS(PS3_MODULE_ALIAS_GPU_FB);
OpenPOWER on IntegriCloud