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ps3fb: make frame buffer offsets unsigned int
[linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git] / drivers / video / ps3fb.c
blobbe9f70cd0062157073f42ec26fe205bfaab20851
1 /*
2 * linux/drivers/video/ps3fb.c -- PS3 GPU frame buffer device
3 *
4 * Copyright (C) 2006 Sony Computer Entertainment Inc.
5 * Copyright 2006, 2007 Sony Corporation
6 *
7 * This file is based on :
8 *
9 * linux/drivers/video/vfb.c -- Virtual frame buffer device
10 *
11 * Copyright (C) 2002 James Simmons
12 *
13 * Copyright (C) 1997 Geert Uytterhoeven
14 *
15 * This file is subject to the terms and conditions of the GNU General Public
16 * License. See the file COPYING in the main directory of this archive for
17 * more details.
18 */
19
20 #include <linux/module.h>
21 #include <linux/kernel.h>
22 #include <linux/errno.h>
23 #include <linux/string.h>
24 #include <linux/mm.h>
25 #include <linux/interrupt.h>
26 #include <linux/console.h>
27 #include <linux/ioctl.h>
28 #include <linux/kthread.h>
29 #include <linux/freezer.h>
30 #include <linux/uaccess.h>
31 #include <linux/fb.h>
32 #include <linux/init.h>
33
34 #include <asm/abs_addr.h>
35 #include <asm/lv1call.h>
36 #include <asm/ps3av.h>
37 #include <asm/ps3fb.h>
38 #include <asm/ps3.h>
39
40
41 #define DEVICE_NAME "ps3fb"
42
43 #define L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_SYNC 0x101
44 #define L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_FLIP 0x102
45 #define L1GPU_CONTEXT_ATTRIBUTE_FB_SETUP 0x600
46 #define L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT 0x601
47 #define L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT_SYNC 0x602
48
49 #define L1GPU_FB_BLIT_WAIT_FOR_COMPLETION (1ULL << 32)
50
51 #define L1GPU_DISPLAY_SYNC_HSYNC 1
52 #define L1GPU_DISPLAY_SYNC_VSYNC 2
53
54 #define GPU_CMD_BUF_SIZE (2 * 1024 * 1024)
55 #define GPU_FB_START (64 * 1024)
56 #define GPU_IOIF (0x0d000000UL)
57 #define GPU_ALIGN_UP(x) _ALIGN_UP((x), 64)
58 #define GPU_MAX_LINE_LENGTH (65536 - 64)
59
60 #define GPU_INTR_STATUS_VSYNC_0 0 /* vsync on head A */
61 #define GPU_INTR_STATUS_VSYNC_1 1 /* vsync on head B */
62 #define GPU_INTR_STATUS_FLIP_0 3 /* flip head A */
63 #define GPU_INTR_STATUS_FLIP_1 4 /* flip head B */
64 #define GPU_INTR_STATUS_QUEUE_0 5 /* queue head A */
65 #define GPU_INTR_STATUS_QUEUE_1 6 /* queue head B */
66
67 #define GPU_DRIVER_INFO_VERSION 0x211
68
69 /* gpu internals */
70 struct display_head {
71 u64 be_time_stamp;
72 u32 status;
73 u32 offset;
74 u32 res1;
75 u32 res2;
76 u32 field;
77 u32 reserved1;
78
79 u64 res3;
80 u32 raster;
81
82 u64 vblank_count;
83 u32 field_vsync;
84 u32 reserved2;
85 };
86
87 struct gpu_irq {
88 u32 irq_outlet;
89 u32 status;
90 u32 mask;
91 u32 video_cause;
92 u32 graph_cause;
93 u32 user_cause;
94
95 u32 res1;
96 u64 res2;
97
98 u32 reserved[4];
99 };
100
101 struct gpu_driver_info {
102 u32 version_driver;
103 u32 version_gpu;
104 u32 memory_size;
105 u32 hardware_channel;
106
107 u32 nvcore_frequency;
108 u32 memory_frequency;
109
110 u32 reserved[1063];
111 struct display_head display_head[8];
112 struct gpu_irq irq;
113 };
114
115 struct ps3fb_priv {
116 unsigned int irq_no;
117
118 u64 context_handle, memory_handle;
119 void *xdr_ea;
120 size_t xdr_size;
121 struct gpu_driver_info *dinfo;
122
123 u64 vblank_count; /* frame count */
124 wait_queue_head_t wait_vsync;
125
126 atomic_t ext_flip; /* on/off flip with vsync */
127 atomic_t f_count; /* fb_open count */
128 int is_blanked;
129 int is_kicked;
130 struct task_struct *task;
131 };
132 static struct ps3fb_priv ps3fb;
133
134 struct ps3fb_par {
135 u32 pseudo_palette[16];
136 int mode_id, new_mode_id;
137 unsigned int num_frames; /* num of frame buffers */
138 unsigned int width;
139 unsigned int height;
140 unsigned int ddr_line_length;
141 unsigned int ddr_frame_size;
142 unsigned int xdr_frame_size;
143 unsigned int full_offset; /* start of fullscreen DDR fb */
144 unsigned int fb_offset; /* start of actual DDR fb */
145 unsigned int pan_offset;
146 };
147
148
149 static const struct fb_videomode ps3fb_modedb[] = {
150 /* 60 Hz broadcast modes (modes "1" to "5") */
151 {
152 /* 480i */
153 "480i", 60, 576, 384, 74074, 130, 89, 78, 57, 63, 6,
154 FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
155 }, {
156 /* 480p */
157 "480p", 60, 576, 384, 37037, 130, 89, 78, 57, 63, 6,
158 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
159 }, {
160 /* 720p */
161 "720p", 60, 1124, 644, 13481, 298, 148, 57, 44, 80, 5,
162 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
163 }, {
164 /* 1080i */
165 "1080i", 60, 1688, 964, 13481, 264, 160, 94, 62, 88, 5,
166 FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
167 }, {
168 /* 1080p */
169 "1080p", 60, 1688, 964, 6741, 264, 160, 94, 62, 88, 5,
170 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
171 },
172
173 /* 50 Hz broadcast modes (modes "6" to "10") */
174 {
175 /* 576i */
176 "576i", 50, 576, 460, 74074, 142, 83, 97, 63, 63, 5,
177 FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
178 }, {
179 /* 576p */
180 "576p", 50, 576, 460, 37037, 142, 83, 97, 63, 63, 5,
181 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
182 }, {
183 /* 720p */
184 "720p", 50, 1124, 644, 13468, 298, 478, 57, 44, 80, 5,
185 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
186 }, {
187 /* 1080 */
188 "1080i", 50, 1688, 964, 13468, 264, 600, 94, 62, 88, 5,
189 FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
190 }, {
191 /* 1080p */
192 "1080p", 50, 1688, 964, 6734, 264, 600, 94, 62, 88, 5,
193 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
194 },
195
196 /* VESA modes (modes "11" to "13") */
197 {
198 /* WXGA */
199 "wxga", 60, 1280, 768, 12924, 160, 24, 29, 3, 136, 6,
200 0, FB_VMODE_NONINTERLACED,
201 FB_MODE_IS_VESA
202 }, {
203 /* SXGA */
204 "sxga", 60, 1280, 1024, 9259, 248, 48, 38, 1, 112, 3,
205 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED,
206 FB_MODE_IS_VESA
207 }, {
208 /* WUXGA */
209 "wuxga", 60, 1920, 1200, 6494, 80, 48, 26, 3, 32, 6,
210 FB_SYNC_HOR_HIGH_ACT, FB_VMODE_NONINTERLACED,
211 FB_MODE_IS_VESA
212 },
213
214 /* 60 Hz broadcast modes (full resolution versions of modes "1" to "5") */
215 {
216 /* 480if */
217 "480if", 60, 720, 480, 74074, 58, 17, 30, 9, 63, 6,
218 FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
219 }, {
220 /* 480pf */
221 "480pf", 60, 720, 480, 37037, 58, 17, 30, 9, 63, 6,
222 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
223 }, {
224 /* 720pf */
225 "720pf", 60, 1280, 720, 13481, 220, 70, 19, 6, 80, 5,
226 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
227 }, {
228 /* 1080if */
229 "1080if", 60, 1920, 1080, 13481, 148, 44, 36, 4, 88, 5,
230 FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
231 }, {
232 /* 1080pf */
233 "1080pf", 60, 1920, 1080, 6741, 148, 44, 36, 4, 88, 5,
234 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
235 },
236
237 /* 50 Hz broadcast modes (full resolution versions of modes "6" to "10") */
238 {
239 /* 576if */
240 "576if", 50, 720, 576, 74074, 70, 11, 39, 5, 63, 5,
241 FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
242 }, {
243 /* 576pf */
244 "576pf", 50, 720, 576, 37037, 70, 11, 39, 5, 63, 5,
245 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
246 }, {
247 /* 720pf */
248 "720pf", 50, 1280, 720, 13468, 220, 400, 19, 6, 80, 5,
249 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
250 }, {
251 /* 1080if */
252 "1080f", 50, 1920, 1080, 13468, 148, 484, 36, 4, 88, 5,
253 FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
254 }, {
255 /* 1080pf */
256 "1080pf", 50, 1920, 1080, 6734, 148, 484, 36, 4, 88, 5,
257 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
258 }
259 };
260
261
262 #define HEAD_A
263 #define HEAD_B
264
265 #define BPP 4 /* number of bytes per pixel */
266
267
268 static int ps3fb_mode;
269 module_param(ps3fb_mode, int, 0);
270
271 static char *mode_option __devinitdata;
272
273 static unsigned int ps3fb_find_mode(const struct fb_var_screeninfo *var,
274 u32 *ddr_line_length, u32 *xdr_line_length)
275 {
276 unsigned int i, fi, mode;
277
278 for (i = 0; i < ARRAY_SIZE(ps3fb_modedb); i++)
279 if (var->xres == ps3fb_modedb[i].xres &&
280 var->yres == ps3fb_modedb[i].yres &&
281 var->pixclock == ps3fb_modedb[i].pixclock &&
282 var->hsync_len == ps3fb_modedb[i].hsync_len &&
283 var->vsync_len == ps3fb_modedb[i].vsync_len &&
284 var->left_margin == ps3fb_modedb[i].left_margin &&
285 var->right_margin == ps3fb_modedb[i].right_margin &&
286 var->upper_margin == ps3fb_modedb[i].upper_margin &&
287 var->lower_margin == ps3fb_modedb[i].lower_margin &&
288 var->sync == ps3fb_modedb[i].sync &&
289 (var->vmode & FB_VMODE_MASK) == ps3fb_modedb[i].vmode)
290 goto found;
291
292 pr_debug("ps3fb_find_mode: mode not found\n");
293 return 0;
294
295 found:
296 /* Cropped broadcast modes use the full line length */
297 fi = i < PS3AV_MODE_1080P50 ? i + PS3AV_MODE_WUXGA : i;
298 *ddr_line_length = ps3fb_modedb[fi].xres * BPP;
299
300 if (ps3_compare_firmware_version(1, 9, 0) >= 0) {
301 *xdr_line_length = GPU_ALIGN_UP(max(var->xres,
302 var->xres_virtual) * BPP);
303 if (*xdr_line_length > GPU_MAX_LINE_LENGTH)
304 *xdr_line_length = GPU_MAX_LINE_LENGTH;
305 } else
306 *xdr_line_length = *ddr_line_length;
307
308 /* Full broadcast modes have the full mode bit set */
309 mode = i+1;
310 if (mode > PS3AV_MODE_WUXGA)
311 mode = (mode - PS3AV_MODE_WUXGA) | PS3AV_MODE_FULL;
312
313 pr_debug("ps3fb_find_mode: mode %u\n", mode);
314
315 return mode;
316 }
317
318 static const struct fb_videomode *ps3fb_default_mode(int id)
319 {
320 u32 mode = id & PS3AV_MODE_MASK;
321 u32 flags;
322
323 if (mode < PS3AV_MODE_480I || mode > PS3AV_MODE_WUXGA)
324 return NULL;
325
326 flags = id & ~PS3AV_MODE_MASK;
327
328 if (mode <= PS3AV_MODE_1080P50 && flags & PS3AV_MODE_FULL) {
329 /* Full broadcast mode */
330 return &ps3fb_modedb[mode + PS3AV_MODE_WUXGA - 1];
331 }
332
333 return &ps3fb_modedb[mode - 1];
334 }
335
336 static void ps3fb_sync_image(struct device *dev, u64 frame_offset,
337 u64 dst_offset, u64 src_offset, u32 width,
338 u32 height, u32 dst_line_length,
339 u32 src_line_length)
340 {
341 int status;
342 u64 line_length;
343
344 line_length = dst_line_length;
345 if (src_line_length != dst_line_length)
346 line_length |= (u64)src_line_length << 32;
347
348 src_offset += GPU_FB_START;
349 status = lv1_gpu_context_attribute(ps3fb.context_handle,
350 L1GPU_CONTEXT_ATTRIBUTE_FB_BLIT,
351 dst_offset, GPU_IOIF + src_offset,
352 L1GPU_FB_BLIT_WAIT_FOR_COMPLETION |
353 (width << 16) | height,
354 line_length);
355 if (status)
356 dev_err(dev,
357 "%s: lv1_gpu_context_attribute FB_BLIT failed: %d\n",
358 __func__, status);
359 #ifdef HEAD_A
360 status = lv1_gpu_context_attribute(ps3fb.context_handle,
361 L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_FLIP,
362 0, frame_offset, 0, 0);
363 if (status)
364 dev_err(dev, "%s: lv1_gpu_context_attribute FLIP failed: %d\n",
365 __func__, status);
366 #endif
367 #ifdef HEAD_B
368 status = lv1_gpu_context_attribute(ps3fb.context_handle,
369 L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_FLIP,
370 1, frame_offset, 0, 0);
371 if (status)
372 dev_err(dev, "%s: lv1_gpu_context_attribute FLIP failed: %d\n",
373 __func__, status);
374 #endif
375 }
376
377 static int ps3fb_sync(struct fb_info *info, u32 frame)
378 {
379 struct ps3fb_par *par = info->par;
380 int error = 0;
381 u64 ddr_base, xdr_base;
382
383 if (frame > par->num_frames - 1) {
384 dev_dbg(info->device, "%s: invalid frame number (%u)\n",
385 __func__, frame);
386 error = -EINVAL;
387 goto out;
388 }
389
390 xdr_base = frame * par->xdr_frame_size;
391 ddr_base = frame * par->ddr_frame_size;
392
393 ps3fb_sync_image(info->device, ddr_base + par->full_offset,
394 ddr_base + par->fb_offset, xdr_base + par->pan_offset,
395 par->width, par->height, par->ddr_line_length,
396 info->fix.line_length);
397
398 out:
399 return error;
400 }
401
402 static int ps3fb_open(struct fb_info *info, int user)
403 {
404 atomic_inc(&ps3fb.f_count);
405 return 0;
406 }
407
408 static int ps3fb_release(struct fb_info *info, int user)
409 {
410 if (atomic_dec_and_test(&ps3fb.f_count)) {
411 if (atomic_read(&ps3fb.ext_flip)) {
412 atomic_set(&ps3fb.ext_flip, 0);
413 if (!try_acquire_console_sem()) {
414 ps3fb_sync(info, 0); /* single buffer */
415 release_console_sem();
416 }
417 }
418 }
419 return 0;
420 }
421
422 /*
423 * Setting the video mode has been split into two parts.
424 * First part, xxxfb_check_var, must not write anything
425 * to hardware, it should only verify and adjust var.
426 * This means it doesn't alter par but it does use hardware
427 * data from it to check this var.
428 */
429
430 static int ps3fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
431 {
432 u32 xdr_line_length, ddr_line_length;
433 int mode;
434
435 dev_dbg(info->device, "var->xres:%u info->var.xres:%u\n", var->xres,
436 info->var.xres);
437 dev_dbg(info->device, "var->yres:%u info->var.yres:%u\n", var->yres,
438 info->var.yres);
439
440 /* FIXME For now we do exact matches only */
441 mode = ps3fb_find_mode(var, &ddr_line_length, &xdr_line_length);
442 if (!mode)
443 return -EINVAL;
444
445 /* Virtual screen */
446 if (var->xres_virtual < var->xres)
447 var->xres_virtual = var->xres;
448 if (var->yres_virtual < var->yres)
449 var->yres_virtual = var->yres;
450
451 if (var->xres_virtual > xdr_line_length / BPP) {
452 dev_dbg(info->device,
453 "Horizontal virtual screen size too large\n");
454 return -EINVAL;
455 }
456
457 if (var->xoffset + var->xres > var->xres_virtual ||
458 var->yoffset + var->yres > var->yres_virtual) {
459 dev_dbg(info->device, "panning out-of-range\n");
460 return -EINVAL;
461 }
462
463 /* We support ARGB8888 only */
464 if (var->bits_per_pixel > 32 || var->grayscale ||
465 var->red.offset > 16 || var->green.offset > 8 ||
466 var->blue.offset > 0 || var->transp.offset > 24 ||
467 var->red.length > 8 || var->green.length > 8 ||
468 var->blue.length > 8 || var->transp.length > 8 ||
469 var->red.msb_right || var->green.msb_right ||
470 var->blue.msb_right || var->transp.msb_right || var->nonstd) {
471 dev_dbg(info->device, "We support ARGB8888 only\n");
472 return -EINVAL;
473 }
474
475 var->bits_per_pixel = 32;
476 var->red.offset = 16;
477 var->green.offset = 8;
478 var->blue.offset = 0;
479 var->transp.offset = 24;
480 var->red.length = 8;
481 var->green.length = 8;
482 var->blue.length = 8;
483 var->transp.length = 8;
484 var->red.msb_right = 0;
485 var->green.msb_right = 0;
486 var->blue.msb_right = 0;
487 var->transp.msb_right = 0;
488
489 /* Rotation is not supported */
490 if (var->rotate) {
491 dev_dbg(info->device, "Rotation is not supported\n");
492 return -EINVAL;
493 }
494
495 /* Memory limit */
496 if (var->yres_virtual * xdr_line_length > ps3fb.xdr_size) {
497 dev_dbg(info->device, "Not enough memory\n");
498 return -ENOMEM;
499 }
500
501 var->height = -1;
502 var->width = -1;
503
504 return 0;
505 }
506
507 /*
508 * This routine actually sets the video mode.
509 */
510
511 static int ps3fb_set_par(struct fb_info *info)
512 {
513 struct ps3fb_par *par = info->par;
514 unsigned int mode, ddr_line_length, xdr_line_length, lines, maxlines;
515 unsigned int ddr_xoff, ddr_yoff, offset;
516 const struct fb_videomode *vmode;
517 u64 dst;
518
519 dev_dbg(info->device, "xres:%d xv:%d yres:%d yv:%d clock:%d\n",
520 info->var.xres, info->var.xres_virtual,
521 info->var.yres, info->var.yres_virtual, info->var.pixclock);
522
523 mode = ps3fb_find_mode(&info->var, &ddr_line_length, &xdr_line_length);
524 if (!mode)
525 return -EINVAL;
526
527 vmode = ps3fb_default_mode(mode | PS3AV_MODE_FULL);
528
529 info->fix.smem_start = virt_to_abs(ps3fb.xdr_ea);
530 info->fix.smem_len = ps3fb.xdr_size;
531 info->fix.xpanstep = info->var.xres_virtual > info->var.xres ? 1 : 0;
532 info->fix.ypanstep = info->var.yres_virtual > info->var.yres ? 1 : 0;
533 info->fix.line_length = xdr_line_length;
534
535 info->screen_base = (char __iomem *)ps3fb.xdr_ea;
536
537 par->ddr_line_length = ddr_line_length;
538 par->ddr_frame_size = vmode->yres * ddr_line_length;
539 par->xdr_frame_size = info->var.yres_virtual * xdr_line_length;
540
541 par->num_frames = ps3fb.xdr_size /
542 max(par->ddr_frame_size, par->xdr_frame_size);
543
544 /* Keep the special bits we cannot set using fb_var_screeninfo */
545 par->new_mode_id = (par->new_mode_id & ~PS3AV_MODE_MASK) | mode;
546
547 par->width = info->var.xres;
548 par->height = info->var.yres;
549
550 /* Start of the virtual frame buffer (relative to fullscreen) */
551 ddr_xoff = info->var.left_margin - vmode->left_margin;
552 ddr_yoff = info->var.upper_margin - vmode->upper_margin;
553 offset = ddr_yoff * ddr_line_length + ddr_xoff * BPP;
554
555 par->fb_offset = GPU_ALIGN_UP(offset);
556 par->full_offset = par->fb_offset - offset;
557 par->pan_offset = info->var.yoffset * xdr_line_length +
558 info->var.xoffset * BPP;
559
560 if (par->new_mode_id != par->mode_id) {
561 if (ps3av_set_video_mode(par->new_mode_id)) {
562 par->new_mode_id = par->mode_id;
563 return -EINVAL;
564 }
565 par->mode_id = par->new_mode_id;
566 }
567
568 /* Clear XDR frame buffer memory */
569 memset(ps3fb.xdr_ea, 0, ps3fb.xdr_size);
570
571 /* Clear DDR frame buffer memory */
572 lines = vmode->yres * par->num_frames;
573 if (par->full_offset)
574 lines++;
575 maxlines = ps3fb.xdr_size / ddr_line_length;
576 for (dst = 0; lines; dst += maxlines * ddr_line_length) {
577 unsigned int l = min(lines, maxlines);
578 ps3fb_sync_image(info->device, 0, dst, 0, vmode->xres, l,
579 ddr_line_length, ddr_line_length);
580 lines -= l;
581 }
582
583 return 0;
584 }
585
586 /*
587 * Set a single color register. The values supplied are already
588 * rounded down to the hardware's capabilities (according to the
589 * entries in the var structure). Return != 0 for invalid regno.
590 */
591
592 static int ps3fb_setcolreg(unsigned int regno, unsigned int red,
593 unsigned int green, unsigned int blue,
594 unsigned int transp, struct fb_info *info)
595 {
596 if (regno >= 16)
597 return 1;
598
599 red >>= 8;
600 green >>= 8;
601 blue >>= 8;
602 transp >>= 8;
603
604 ((u32 *)info->pseudo_palette)[regno] = transp << 24 | red << 16 |
605 green << 8 | blue;
606 return 0;
607 }
608
609 static int ps3fb_pan_display(struct fb_var_screeninfo *var,
610 struct fb_info *info)
611 {
612 struct ps3fb_par *par = info->par;
613
614 par->pan_offset = var->yoffset * info->fix.line_length +
615 var->xoffset * BPP;
616 return 0;
617 }
618
619 /*
620 * As we have a virtual frame buffer, we need our own mmap function
621 */
622
623 static int ps3fb_mmap(struct fb_info *info, struct vm_area_struct *vma)
624 {
625 unsigned long size, offset;
626
627 size = vma->vm_end - vma->vm_start;
628 offset = vma->vm_pgoff << PAGE_SHIFT;
629 if (offset + size > info->fix.smem_len)
630 return -EINVAL;
631
632 offset += info->fix.smem_start;
633 if (remap_pfn_range(vma, vma->vm_start, offset >> PAGE_SHIFT,
634 size, vma->vm_page_prot))
635 return -EAGAIN;
636
637 dev_dbg(info->device, "ps3fb: mmap framebuffer P(%lx)->V(%lx)\n",
638 offset, vma->vm_start);
639 return 0;
640 }
641
642 /*
643 * Blank the display
644 */
645
646 static int ps3fb_blank(int blank, struct fb_info *info)
647 {
648 int retval;
649
650 dev_dbg(info->device, "%s: blank:%d\n", __func__, blank);
651 switch (blank) {
652 case FB_BLANK_POWERDOWN:
653 case FB_BLANK_HSYNC_SUSPEND:
654 case FB_BLANK_VSYNC_SUSPEND:
655 case FB_BLANK_NORMAL:
656 retval = ps3av_video_mute(1); /* mute on */
657 if (!retval)
658 ps3fb.is_blanked = 1;
659 break;
660
661 default: /* unblank */
662 retval = ps3av_video_mute(0); /* mute off */
663 if (!retval)
664 ps3fb.is_blanked = 0;
665 break;
666 }
667 return retval;
668 }
669
670 static int ps3fb_get_vblank(struct fb_vblank *vblank)
671 {
672 memset(vblank, 0, sizeof(*vblank));
673 vblank->flags = FB_VBLANK_HAVE_VSYNC;
674 return 0;
675 }
676
677 static int ps3fb_wait_for_vsync(u32 crtc)
678 {
679 int ret;
680 u64 count;
681
682 count = ps3fb.vblank_count;
683 ret = wait_event_interruptible_timeout(ps3fb.wait_vsync,
684 count != ps3fb.vblank_count,
685 HZ / 10);
686 if (!ret)
687 return -ETIMEDOUT;
688
689 return 0;
690 }
691
692 static void ps3fb_flip_ctl(int on, void *data)
693 {
694 struct ps3fb_priv *priv = data;
695 if (on)
696 atomic_dec_if_positive(&priv->ext_flip);
697 else
698 atomic_inc(&priv->ext_flip);
699 }
700
701
702 /*
703 * ioctl
704 */
705
706 static int ps3fb_ioctl(struct fb_info *info, unsigned int cmd,
707 unsigned long arg)
708 {
709 void __user *argp = (void __user *)arg;
710 u32 val;
711 int retval = -EFAULT;
712
713 switch (cmd) {
714 case FBIOGET_VBLANK:
715 {
716 struct fb_vblank vblank;
717 dev_dbg(info->device, "FBIOGET_VBLANK:\n");
718 retval = ps3fb_get_vblank(&vblank);
719 if (retval)
720 break;
721
722 if (copy_to_user(argp, &vblank, sizeof(vblank)))
723 retval = -EFAULT;
724 break;
725 }
726
727 case FBIO_WAITFORVSYNC:
728 {
729 u32 crt;
730 dev_dbg(info->device, "FBIO_WAITFORVSYNC:\n");
731 if (get_user(crt, (u32 __user *) arg))
732 break;
733
734 retval = ps3fb_wait_for_vsync(crt);
735 break;
736 }
737
738 case PS3FB_IOCTL_SETMODE:
739 {
740 struct ps3fb_par *par = info->par;
741 const struct fb_videomode *mode;
742 struct fb_var_screeninfo var;
743
744 if (copy_from_user(&val, argp, sizeof(val)))
745 break;
746
747 if (!(val & PS3AV_MODE_MASK)) {
748 u32 id = ps3av_get_auto_mode();
749 if (id > 0)
750 val = (val & ~PS3AV_MODE_MASK) | id;
751 }
752 dev_dbg(info->device, "PS3FB_IOCTL_SETMODE:%x\n", val);
753 retval = -EINVAL;
754 mode = ps3fb_default_mode(val);
755 if (mode) {
756 var = info->var;
757 fb_videomode_to_var(&var, mode);
758 acquire_console_sem();
759 info->flags |= FBINFO_MISC_USEREVENT;
760 /* Force, in case only special bits changed */
761 var.activate |= FB_ACTIVATE_FORCE;
762 par->new_mode_id = val;
763 retval = fb_set_var(info, &var);
764 info->flags &= ~FBINFO_MISC_USEREVENT;
765 release_console_sem();
766 }
767 break;
768 }
769
770 case PS3FB_IOCTL_GETMODE:
771 val = ps3av_get_mode();
772 dev_dbg(info->device, "PS3FB_IOCTL_GETMODE:%x\n", val);
773 if (!copy_to_user(argp, &val, sizeof(val)))
774 retval = 0;
775 break;
776
777 case PS3FB_IOCTL_SCREENINFO:
778 {
779 struct ps3fb_par *par = info->par;
780 struct ps3fb_ioctl_res res;
781 dev_dbg(info->device, "PS3FB_IOCTL_SCREENINFO:\n");
782 res.xres = info->fix.line_length / BPP;
783 res.yres = info->var.yres_virtual;
784 res.xoff = (res.xres - info->var.xres) / 2;
785 res.yoff = (res.yres - info->var.yres) / 2;
786 res.num_frames = par->num_frames;
787 if (!copy_to_user(argp, &res, sizeof(res)))
788 retval = 0;
789 break;
790 }
791
792 case PS3FB_IOCTL_ON:
793 dev_dbg(info->device, "PS3FB_IOCTL_ON:\n");
794 atomic_inc(&ps3fb.ext_flip);
795 retval = 0;
796 break;
797
798 case PS3FB_IOCTL_OFF:
799 dev_dbg(info->device, "PS3FB_IOCTL_OFF:\n");
800 atomic_dec_if_positive(&ps3fb.ext_flip);
801 retval = 0;
802 break;
803
804 case PS3FB_IOCTL_FSEL:
805 if (copy_from_user(&val, argp, sizeof(val)))
806 break;
807
808 dev_dbg(info->device, "PS3FB_IOCTL_FSEL:%d\n", val);
809 acquire_console_sem();
810 retval = ps3fb_sync(info, val);
811 release_console_sem();
812 break;
813
814 default:
815 retval = -ENOIOCTLCMD;
816 break;
817 }
818 return retval;
819 }
820
821 static int ps3fbd(void *arg)
822 {
823 struct fb_info *info = arg;
824
825 set_freezable();
826 while (!kthread_should_stop()) {
827 try_to_freeze();
828 set_current_state(TASK_INTERRUPTIBLE);
829 if (ps3fb.is_kicked) {
830 ps3fb.is_kicked = 0;
831 acquire_console_sem();
832 ps3fb_sync(info, 0); /* single buffer */
833 release_console_sem();
834 }
835 schedule();
836 }
837 return 0;
838 }
839
840 static irqreturn_t ps3fb_vsync_interrupt(int irq, void *ptr)
841 {
842 struct device *dev = ptr;
843 u64 v1;
844 int status;
845 struct display_head *head = &ps3fb.dinfo->display_head[1];
846
847 status = lv1_gpu_context_intr(ps3fb.context_handle, &v1);
848 if (status) {
849 dev_err(dev, "%s: lv1_gpu_context_intr failed: %d\n", __func__,
850 status);
851 return IRQ_NONE;
852 }
853
854 if (v1 & (1 << GPU_INTR_STATUS_VSYNC_1)) {
855 /* VSYNC */
856 ps3fb.vblank_count = head->vblank_count;
857 if (ps3fb.task && !ps3fb.is_blanked &&
858 !atomic_read(&ps3fb.ext_flip)) {
859 ps3fb.is_kicked = 1;
860 wake_up_process(ps3fb.task);
861 }
862 wake_up_interruptible(&ps3fb.wait_vsync);
863 }
864
865 return IRQ_HANDLED;
866 }
867
868
869 static int ps3fb_vsync_settings(struct gpu_driver_info *dinfo,
870 struct device *dev)
871 {
872 int error;
873
874 dev_dbg(dev, "version_driver:%x\n", dinfo->version_driver);
875 dev_dbg(dev, "irq outlet:%x\n", dinfo->irq.irq_outlet);
876 dev_dbg(dev,
877 "version_gpu: %x memory_size: %x ch: %x core_freq: %d "
878 "mem_freq:%d\n",
879 dinfo->version_gpu, dinfo->memory_size, dinfo->hardware_channel,
880 dinfo->nvcore_frequency/1000000, dinfo->memory_frequency/1000000);
881
882 if (dinfo->version_driver != GPU_DRIVER_INFO_VERSION) {
883 dev_err(dev, "%s: version_driver err:%x\n", __func__,
884 dinfo->version_driver);
885 return -EINVAL;
886 }
887
888 error = ps3_irq_plug_setup(PS3_BINDING_CPU_ANY, dinfo->irq.irq_outlet,
889 &ps3fb.irq_no);
890 if (error) {
891 dev_err(dev, "%s: ps3_alloc_irq failed %d\n", __func__, error);
892 return error;
893 }
894
895 error = request_irq(ps3fb.irq_no, ps3fb_vsync_interrupt, IRQF_DISABLED,
896 DEVICE_NAME, dev);
897 if (error) {
898 dev_err(dev, "%s: request_irq failed %d\n", __func__, error);
899 ps3_irq_plug_destroy(ps3fb.irq_no);
900 return error;
901 }
902
903 dinfo->irq.mask = (1 << GPU_INTR_STATUS_VSYNC_1) |
904 (1 << GPU_INTR_STATUS_FLIP_1);
905 return 0;
906 }
907
908 static int ps3fb_xdr_settings(u64 xdr_lpar, struct device *dev)
909 {
910 int status;
911
912 status = lv1_gpu_context_iomap(ps3fb.context_handle, GPU_IOIF,
913 xdr_lpar, ps3fb_videomemory.size, 0);
914 if (status) {
915 dev_err(dev, "%s: lv1_gpu_context_iomap failed: %d\n",
916 __func__, status);
917 return -ENXIO;
918 }
919 dev_dbg(dev,
920 "video:%p xdr_ea:%p ioif:%lx lpar:%lx phys:%lx size:%lx\n",
921 ps3fb_videomemory.address, ps3fb.xdr_ea, GPU_IOIF, xdr_lpar,
922 virt_to_abs(ps3fb.xdr_ea), ps3fb_videomemory.size);
923
924 status = lv1_gpu_context_attribute(ps3fb.context_handle,
925 L1GPU_CONTEXT_ATTRIBUTE_FB_SETUP,
926 xdr_lpar, GPU_CMD_BUF_SIZE,
927 GPU_IOIF, 0);
928 if (status) {
929 dev_err(dev,
930 "%s: lv1_gpu_context_attribute FB_SETUP failed: %d\n",
931 __func__, status);
932 return -ENXIO;
933 }
934 return 0;
935 }
936
937 static struct fb_ops ps3fb_ops = {
938 .fb_open = ps3fb_open,
939 .fb_release = ps3fb_release,
940 .fb_read = fb_sys_read,
941 .fb_write = fb_sys_write,
942 .fb_check_var = ps3fb_check_var,
943 .fb_set_par = ps3fb_set_par,
944 .fb_setcolreg = ps3fb_setcolreg,
945 .fb_pan_display = ps3fb_pan_display,
946 .fb_fillrect = sys_fillrect,
947 .fb_copyarea = sys_copyarea,
948 .fb_imageblit = sys_imageblit,
949 .fb_mmap = ps3fb_mmap,
950 .fb_blank = ps3fb_blank,
951 .fb_ioctl = ps3fb_ioctl,
952 .fb_compat_ioctl = ps3fb_ioctl
953 };
954
955 static struct fb_fix_screeninfo ps3fb_fix __initdata = {
956 .id = DEVICE_NAME,
957 .type = FB_TYPE_PACKED_PIXELS,
958 .visual = FB_VISUAL_TRUECOLOR,
959 .accel = FB_ACCEL_NONE,
960 };
961
962 static int ps3fb_set_sync(struct device *dev)
963 {
964 int status;
965
966 #ifdef HEAD_A
967 status = lv1_gpu_context_attribute(0x0,
968 L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_SYNC,
969 0, L1GPU_DISPLAY_SYNC_VSYNC, 0, 0);
970 if (status) {
971 dev_err(dev,
972 "%s: lv1_gpu_context_attribute DISPLAY_SYNC failed: "
973 "%d\n",
974 __func__, status);
975 return -1;
976 }
977 #endif
978 #ifdef HEAD_B
979 status = lv1_gpu_context_attribute(0x0,
980 L1GPU_CONTEXT_ATTRIBUTE_DISPLAY_SYNC,
981 1, L1GPU_DISPLAY_SYNC_VSYNC, 0, 0);
982
983 if (status) {
984 dev_err(dev,
985 "%s: lv1_gpu_context_attribute DISPLAY_SYNC failed: "
986 "%d\n",
987 __func__, status);
988 return -1;
989 }
990 #endif
991 return 0;
992 }
993
994 static int __devinit ps3fb_probe(struct ps3_system_bus_device *dev)
995 {
996 struct fb_info *info;
997 struct ps3fb_par *par;
998 int retval = -ENOMEM;
999 u64 ddr_lpar = 0;
1000 u64 lpar_dma_control = 0;
1001 u64 lpar_driver_info = 0;
1002 u64 lpar_reports = 0;
1003 u64 lpar_reports_size = 0;
1004 u64 xdr_lpar;
1005 int status;
1006 struct task_struct *task;
1007 unsigned long max_ps3fb_size;
1008
1009 if (ps3fb_videomemory.size < GPU_CMD_BUF_SIZE) {
1010 dev_err(&dev->core, "%s: Not enough video memory\n", __func__);
1011 return -ENOMEM;
1012 }
1013
1014 status = ps3_open_hv_device(dev);
1015 if (status) {
1016 dev_err(&dev->core, "%s: ps3_open_hv_device failed\n",
1017 __func__);
1018 goto err;
1019 }
1020
1021 if (!ps3fb_mode)
1022 ps3fb_mode = ps3av_get_mode();
1023 dev_dbg(&dev->core, "ps3fb_mode: %d\n", ps3fb_mode);
1024
1025 atomic_set(&ps3fb.f_count, -1); /* fbcon opens ps3fb */
1026 atomic_set(&ps3fb.ext_flip, 0); /* for flip with vsync */
1027 init_waitqueue_head(&ps3fb.wait_vsync);
1028
1029 ps3fb_set_sync(&dev->core);
1030
1031 max_ps3fb_size = _ALIGN_UP(GPU_IOIF, 256*1024*1024) - GPU_IOIF;
1032 if (ps3fb_videomemory.size > max_ps3fb_size) {
1033 dev_info(&dev->core, "Limiting ps3fb mem size to %lu bytes\n",
1034 max_ps3fb_size);
1035 ps3fb_videomemory.size = max_ps3fb_size;
1036 }
1037
1038 /* get gpu context handle */
1039 status = lv1_gpu_memory_allocate(ps3fb_videomemory.size, 0, 0, 0, 0,
1040 &ps3fb.memory_handle, &ddr_lpar);
1041 if (status) {
1042 dev_err(&dev->core, "%s: lv1_gpu_memory_allocate failed: %d\n",
1043 __func__, status);
1044 goto err;
1045 }
1046 dev_dbg(&dev->core, "ddr:lpar:0x%lx\n", ddr_lpar);
1047
1048 status = lv1_gpu_context_allocate(ps3fb.memory_handle, 0,
1049 &ps3fb.context_handle,
1050 &lpar_dma_control, &lpar_driver_info,
1051 &lpar_reports, &lpar_reports_size);
1052 if (status) {
1053 dev_err(&dev->core,
1054 "%s: lv1_gpu_context_attribute failed: %d\n", __func__,
1055 status);
1056 goto err_gpu_memory_free;
1057 }
1058
1059 /* vsync interrupt */
1060 ps3fb.dinfo = ioremap(lpar_driver_info, 128 * 1024);
1061 if (!ps3fb.dinfo) {
1062 dev_err(&dev->core, "%s: ioremap failed\n", __func__);
1063 goto err_gpu_context_free;
1064 }
1065
1066 retval = ps3fb_vsync_settings(ps3fb.dinfo, &dev->core);
1067 if (retval)
1068 goto err_iounmap_dinfo;
1069
1070 /* XDR frame buffer */
1071 ps3fb.xdr_ea = ps3fb_videomemory.address;
1072 xdr_lpar = ps3_mm_phys_to_lpar(__pa(ps3fb.xdr_ea));
1073
1074 /* Clear memory to prevent kernel info leakage into userspace */
1075 memset(ps3fb.xdr_ea, 0, ps3fb_videomemory.size);
1076
1077 /*
1078 * The GPU command buffer is at the start of video memory
1079 * As we don't use the full command buffer, we can put the actual
1080 * frame buffer at offset GPU_FB_START and save some precious XDR
1081 * memory
1082 */
1083 ps3fb.xdr_ea += GPU_FB_START;
1084 ps3fb.xdr_size = ps3fb_videomemory.size - GPU_FB_START;
1085
1086 retval = ps3fb_xdr_settings(xdr_lpar, &dev->core);
1087 if (retval)
1088 goto err_free_irq;
1089
1090 info = framebuffer_alloc(sizeof(struct ps3fb_par), &dev->core);
1091 if (!info)
1092 goto err_free_irq;
1093
1094 par = info->par;
1095 par->mode_id = ~ps3fb_mode; /* != ps3fb_mode, to trigger change */
1096 par->new_mode_id = ps3fb_mode;
1097 par->num_frames = 1;
1098
1099 info->screen_base = (char __iomem *)ps3fb.xdr_ea;
1100 info->fbops = &ps3fb_ops;
1101
1102 info->fix = ps3fb_fix;
1103 info->fix.smem_start = virt_to_abs(ps3fb.xdr_ea);
1104 info->fix.smem_len = ps3fb.xdr_size;
1105 info->pseudo_palette = par->pseudo_palette;
1106 info->flags = FBINFO_DEFAULT | FBINFO_READS_FAST |
1107 FBINFO_HWACCEL_XPAN | FBINFO_HWACCEL_YPAN;
1108
1109 retval = fb_alloc_cmap(&info->cmap, 256, 0);
1110 if (retval < 0)
1111 goto err_framebuffer_release;
1112
1113 if (!fb_find_mode(&info->var, info, mode_option, ps3fb_modedb,
1114 ARRAY_SIZE(ps3fb_modedb),
1115 ps3fb_default_mode(par->new_mode_id), 32)) {
1116 retval = -EINVAL;
1117 goto err_fb_dealloc;
1118 }
1119
1120 fb_videomode_to_modelist(ps3fb_modedb, ARRAY_SIZE(ps3fb_modedb),
1121 &info->modelist);
1122
1123 retval = register_framebuffer(info);
1124 if (retval < 0)
1125 goto err_fb_dealloc;
1126
1127 dev->core.driver_data = info;
1128
1129 dev_info(info->device, "%s %s, using %lu KiB of video memory\n",
1130 dev_driver_string(info->dev), info->dev->bus_id,
1131 ps3fb.xdr_size >> 10);
1132
1133 task = kthread_run(ps3fbd, info, DEVICE_NAME);
1134 if (IS_ERR(task)) {
1135 retval = PTR_ERR(task);
1136 goto err_unregister_framebuffer;
1137 }
1138
1139 ps3fb.task = task;
1140 ps3av_register_flip_ctl(ps3fb_flip_ctl, &ps3fb);
1141
1142 return 0;
1143
1144 err_unregister_framebuffer:
1145 unregister_framebuffer(info);
1146 err_fb_dealloc:
1147 fb_dealloc_cmap(&info->cmap);
1148 err_framebuffer_release:
1149 framebuffer_release(info);
1150 err_free_irq:
1151 free_irq(ps3fb.irq_no, &dev->core);
1152 ps3_irq_plug_destroy(ps3fb.irq_no);
1153 err_iounmap_dinfo:
1154 iounmap((u8 __iomem *)ps3fb.dinfo);
1155 err_gpu_context_free:
1156 lv1_gpu_context_free(ps3fb.context_handle);
1157 err_gpu_memory_free:
1158 lv1_gpu_memory_free(ps3fb.memory_handle);
1159 err:
1160 return retval;
1161 }
1162
1163 static int ps3fb_shutdown(struct ps3_system_bus_device *dev)
1164 {
1165 int status;
1166 struct fb_info *info = dev->core.driver_data;
1167
1168 dev_dbg(&dev->core, " -> %s:%d\n", __func__, __LINE__);
1169
1170 ps3fb_flip_ctl(0, &ps3fb); /* flip off */
1171 ps3fb.dinfo->irq.mask = 0;
1172
1173 ps3av_register_flip_ctl(NULL, NULL);
1174 if (ps3fb.task) {
1175 struct task_struct *task = ps3fb.task;
1176 ps3fb.task = NULL;
1177 kthread_stop(task);
1178 }
1179 if (ps3fb.irq_no) {
1180 free_irq(ps3fb.irq_no, &dev->core);
1181 ps3_irq_plug_destroy(ps3fb.irq_no);
1182 }
1183 if (info) {
1184 unregister_framebuffer(info);
1185 fb_dealloc_cmap(&info->cmap);
1186 framebuffer_release(info);
1187 info = dev->core.driver_data = NULL;
1188 }
1189 iounmap((u8 __iomem *)ps3fb.dinfo);
1190
1191 status = lv1_gpu_context_free(ps3fb.context_handle);
1192 if (status)
1193 dev_dbg(&dev->core, "lv1_gpu_context_free failed: %d\n",
1194 status);
1195
1196 status = lv1_gpu_memory_free(ps3fb.memory_handle);
1197 if (status)
1198 dev_dbg(&dev->core, "lv1_gpu_memory_free failed: %d\n",
1199 status);
1200
1201 ps3_close_hv_device(dev);
1202 dev_dbg(&dev->core, " <- %s:%d\n", __func__, __LINE__);
1203
1204 return 0;
1205 }
1206
1207 static struct ps3_system_bus_driver ps3fb_driver = {
1208 .match_id = PS3_MATCH_ID_GRAPHICS,
1209 .core.name = DEVICE_NAME,
1210 .core.owner = THIS_MODULE,
1211 .probe = ps3fb_probe,
1212 .remove = ps3fb_shutdown,
1213 .shutdown = ps3fb_shutdown,
1214 };
1215
1216 static int __init ps3fb_setup(void)
1217 {
1218 char *options;
1219
1220 #ifdef MODULE
1221 return 0;
1222 #endif
1223
1224 if (fb_get_options(DEVICE_NAME, &options))
1225 return -ENXIO;
1226
1227 if (!options || !*options)
1228 return 0;
1229
1230 while (1) {
1231 char *this_opt = strsep(&options, ",");
1232
1233 if (!this_opt)
1234 break;
1235 if (!*this_opt)
1236 continue;
1237 if (!strncmp(this_opt, "mode:", 5))
1238 ps3fb_mode = simple_strtoul(this_opt + 5, NULL, 0);
1239 else
1240 mode_option = this_opt;
1241 }
1242 return 0;
1243 }
1244
1245 static int __init ps3fb_init(void)
1246 {
1247 if (!ps3fb_videomemory.address || ps3fb_setup())
1248 return -ENXIO;
1249
1250 return ps3_system_bus_driver_register(&ps3fb_driver);
1251 }
1252
1253 static void __exit ps3fb_exit(void)
1254 {
1255 pr_debug(" -> %s:%d\n", __func__, __LINE__);
1256 ps3_system_bus_driver_unregister(&ps3fb_driver);
1257 pr_debug(" <- %s:%d\n", __func__, __LINE__);
1258 }
1259
1260 module_init(ps3fb_init);
1261 module_exit(ps3fb_exit);
1262
1263 MODULE_LICENSE("GPL");
1264 MODULE_DESCRIPTION("PS3 GPU Frame Buffer Driver");
1265 MODULE_AUTHOR("Sony Computer Entertainment Inc.");
1266 MODULE_ALIAS(PS3_MODULE_ALIAS_GRAPHICS);
Linux 2.6 ibm-acpi/thinkpad-acpi driver git tree