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/fbcon.h> |
33 | #include <linux/init.h> |
34 | |
35 | #include <asm/cell-regs.h> |
36 | #include <asm/lv1call.h> |
37 | #include <asm/ps3av.h> |
38 | #include <asm/ps3fb.h> |
39 | #include <asm/ps3.h> |
40 | #include <asm/ps3gpu.h> |
41 | |
42 | |
43 | #define DEVICE_NAME "ps3fb" |
44 | |
45 | #define GPU_CMD_BUF_SIZE (2 * 1024 * 1024) |
46 | #define GPU_FB_START (64 * 1024) |
47 | #define GPU_IOIF (0x0d000000UL) |
48 | #define GPU_ALIGN_UP(x) ALIGN((x), 64) |
49 | #define GPU_MAX_LINE_LENGTH (65536 - 64) |
50 | |
51 | #define GPU_INTR_STATUS_VSYNC_0 0 /* vsync on head A */ |
52 | #define GPU_INTR_STATUS_VSYNC_1 1 /* vsync on head B */ |
53 | #define GPU_INTR_STATUS_FLIP_0 3 /* flip head A */ |
54 | #define GPU_INTR_STATUS_FLIP_1 4 /* flip head B */ |
55 | #define GPU_INTR_STATUS_QUEUE_0 5 /* queue head A */ |
56 | #define GPU_INTR_STATUS_QUEUE_1 6 /* queue head B */ |
57 | |
58 | #define GPU_DRIVER_INFO_VERSION 0x211 |
59 | |
60 | /* gpu internals */ |
61 | struct display_head { |
62 | u64 be_time_stamp; |
63 | u32 status; |
64 | u32 offset; |
65 | u32 res1; |
66 | u32 res2; |
67 | u32 field; |
68 | u32 reserved1; |
69 | |
70 | u64 res3; |
71 | u32 raster; |
72 | |
73 | u64 vblank_count; |
74 | u32 field_vsync; |
75 | u32 reserved2; |
76 | }; |
77 | |
78 | struct gpu_irq { |
79 | u32 irq_outlet; |
80 | u32 status; |
81 | u32 mask; |
82 | u32 video_cause; |
83 | u32 graph_cause; |
84 | u32 user_cause; |
85 | |
86 | u32 res1; |
87 | u64 res2; |
88 | |
89 | u32 reserved[4]; |
90 | }; |
91 | |
92 | struct gpu_driver_info { |
93 | u32 version_driver; |
94 | u32 version_gpu; |
95 | u32 memory_size; |
96 | u32 hardware_channel; |
97 | |
98 | u32 nvcore_frequency; |
99 | u32 memory_frequency; |
100 | |
101 | u32 reserved[1063]; |
102 | struct display_head display_head[8]; |
103 | struct gpu_irq irq; |
104 | }; |
105 | |
106 | struct ps3fb_priv { |
107 | unsigned int irq_no; |
108 | |
109 | u64 context_handle, memory_handle; |
110 | struct gpu_driver_info *dinfo; |
111 | |
112 | u64 vblank_count; /* frame count */ |
113 | wait_queue_head_t wait_vsync; |
114 | |
115 | atomic_t ext_flip; /* on/off flip with vsync */ |
116 | atomic_t f_count; /* fb_open count */ |
117 | int is_blanked; |
118 | int is_kicked; |
119 | struct task_struct *task; |
120 | }; |
121 | static struct ps3fb_priv ps3fb; |
122 | |
123 | struct ps3fb_par { |
124 | u32 pseudo_palette[16]; |
125 | int mode_id, new_mode_id; |
126 | unsigned int num_frames; /* num of frame buffers */ |
127 | unsigned int width; |
128 | unsigned int height; |
129 | unsigned int ddr_line_length; |
130 | unsigned int ddr_frame_size; |
131 | unsigned int xdr_frame_size; |
132 | unsigned int full_offset; /* start of fullscreen DDR fb */ |
133 | unsigned int fb_offset; /* start of actual DDR fb */ |
134 | unsigned int pan_offset; |
135 | }; |
136 | |
137 | |
138 | #define FIRST_NATIVE_MODE_INDEX 10 |
139 | |
140 | static const struct fb_videomode ps3fb_modedb[] = { |
141 | /* 60 Hz broadcast modes (modes "1" to "5") */ |
142 | { |
143 | /* 480i */ |
144 | "480i" , 60, 576, 384, 74074, 130, 89, 78, 57, 63, 6, |
145 | FB_SYNC_BROADCAST, FB_VMODE_INTERLACED |
146 | }, { |
147 | /* 480p */ |
148 | "480p" , 60, 576, 384, 37037, 130, 89, 78, 57, 63, 6, |
149 | FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED |
150 | }, { |
151 | /* 720p */ |
152 | "720p" , 60, 1124, 644, 13481, 298, 148, 57, 44, 80, 5, |
153 | FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED |
154 | }, { |
155 | /* 1080i */ |
156 | "1080i" , 60, 1688, 964, 13481, 264, 160, 94, 62, 88, 5, |
157 | FB_SYNC_BROADCAST, FB_VMODE_INTERLACED |
158 | }, { |
159 | /* 1080p */ |
160 | "1080p" , 60, 1688, 964, 6741, 264, 160, 94, 62, 88, 5, |
161 | FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED |
162 | }, |
163 | |
164 | /* 50 Hz broadcast modes (modes "6" to "10") */ |
165 | { |
166 | /* 576i */ |
167 | "576i" , 50, 576, 460, 74074, 142, 83, 97, 63, 63, 5, |
168 | FB_SYNC_BROADCAST, FB_VMODE_INTERLACED |
169 | }, { |
170 | /* 576p */ |
171 | "576p" , 50, 576, 460, 37037, 142, 83, 97, 63, 63, 5, |
172 | FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED |
173 | }, { |
174 | /* 720p */ |
175 | "720p" , 50, 1124, 644, 13468, 298, 478, 57, 44, 80, 5, |
176 | FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED |
177 | }, { |
178 | /* 1080i */ |
179 | "1080i" , 50, 1688, 964, 13468, 264, 600, 94, 62, 88, 5, |
180 | FB_SYNC_BROADCAST, FB_VMODE_INTERLACED |
181 | }, { |
182 | /* 1080p */ |
183 | "1080p" , 50, 1688, 964, 6734, 264, 600, 94, 62, 88, 5, |
184 | FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED |
185 | }, |
186 | |
187 | [FIRST_NATIVE_MODE_INDEX] = |
188 | /* 60 Hz broadcast modes (full resolution versions of modes "1" to "5") */ |
189 | { |
190 | /* 480if */ |
191 | "480if" , 60, 720, 480, 74074, 58, 17, 30, 9, 63, 6, |
192 | FB_SYNC_BROADCAST, FB_VMODE_INTERLACED |
193 | }, { |
194 | /* 480pf */ |
195 | "480pf" , 60, 720, 480, 37037, 58, 17, 30, 9, 63, 6, |
196 | FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED |
197 | }, { |
198 | /* 720pf */ |
199 | "720pf" , 60, 1280, 720, 13481, 220, 70, 19, 6, 80, 5, |
200 | FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED |
201 | }, { |
202 | /* 1080if */ |
203 | "1080if" , 60, 1920, 1080, 13481, 148, 44, 36, 4, 88, 5, |
204 | FB_SYNC_BROADCAST, FB_VMODE_INTERLACED |
205 | }, { |
206 | /* 1080pf */ |
207 | "1080pf" , 60, 1920, 1080, 6741, 148, 44, 36, 4, 88, 5, |
208 | FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED |
209 | }, |
210 | |
211 | /* 50 Hz broadcast modes (full resolution versions of modes "6" to "10") */ |
212 | { |
213 | /* 576if */ |
214 | "576if" , 50, 720, 576, 74074, 70, 11, 39, 5, 63, 5, |
215 | FB_SYNC_BROADCAST, FB_VMODE_INTERLACED |
216 | }, { |
217 | /* 576pf */ |
218 | "576pf" , 50, 720, 576, 37037, 70, 11, 39, 5, 63, 5, |
219 | FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED |
220 | }, { |
221 | /* 720pf */ |
222 | "720pf" , 50, 1280, 720, 13468, 220, 400, 19, 6, 80, 5, |
223 | FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED |
224 | }, { |
225 | /* 1080if */ |
226 | "1080if" , 50, 1920, 1080, 13468, 148, 484, 36, 4, 88, 5, |
227 | FB_SYNC_BROADCAST, FB_VMODE_INTERLACED |
228 | }, { |
229 | /* 1080pf */ |
230 | "1080pf" , 50, 1920, 1080, 6734, 148, 484, 36, 4, 88, 5, |
231 | FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED |
232 | }, |
233 | |
234 | /* VESA modes (modes "11" to "13") */ |
235 | { |
236 | /* WXGA */ |
237 | "wxga" , 60, 1280, 768, 12924, 160, 24, 29, 3, 136, 6, |
238 | 0, FB_VMODE_NONINTERLACED, |
239 | FB_MODE_IS_VESA |
240 | }, { |
241 | /* SXGA */ |
242 | "sxga" , 60, 1280, 1024, 9259, 248, 48, 38, 1, 112, 3, |
243 | FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED, |
244 | FB_MODE_IS_VESA |
245 | }, { |
246 | /* WUXGA */ |
247 | "wuxga" , 60, 1920, 1200, 6494, 80, 48, 26, 3, 32, 6, |
248 | FB_SYNC_HOR_HIGH_ACT, FB_VMODE_NONINTERLACED, |
249 | FB_MODE_IS_VESA |
250 | } |
251 | }; |
252 | |
253 | |
254 | #define HEAD_A |
255 | #define HEAD_B |
256 | |
257 | #define BPP 4 /* number of bytes per pixel */ |
258 | |
259 | |
260 | static int ps3fb_mode; |
261 | module_param(ps3fb_mode, int, 0); |
262 | |
263 | static char *mode_option; |
264 | |
265 | static int ps3fb_cmp_mode(const struct fb_videomode *vmode, |
266 | const struct fb_var_screeninfo *var) |
267 | { |
268 | long xres, yres, left_margin, right_margin, upper_margin, lower_margin; |
269 | long dx, dy; |
270 | |
271 | /* maximum values */ |
272 | if (var->xres > vmode->xres || var->yres > vmode->yres || |
273 | var->pixclock > vmode->pixclock || |
274 | var->hsync_len > vmode->hsync_len || |
275 | var->vsync_len > vmode->vsync_len) |
276 | return -1; |
277 | |
278 | /* progressive/interlaced must match */ |
279 | if ((var->vmode & FB_VMODE_MASK) != vmode->vmode) |
280 | return -1; |
281 | |
282 | /* minimum resolution */ |
283 | xres = max(var->xres, 1U); |
284 | yres = max(var->yres, 1U); |
285 | |
286 | /* minimum margins */ |
287 | left_margin = max(var->left_margin, vmode->left_margin); |
288 | right_margin = max(var->right_margin, vmode->right_margin); |
289 | upper_margin = max(var->upper_margin, vmode->upper_margin); |
290 | lower_margin = max(var->lower_margin, vmode->lower_margin); |
291 | |
292 | /* resolution + margins may not exceed native parameters */ |
293 | dx = ((long)vmode->left_margin + (long)vmode->xres + |
294 | (long)vmode->right_margin) - |
295 | (left_margin + xres + right_margin); |
296 | if (dx < 0) |
297 | return -1; |
298 | |
299 | dy = ((long)vmode->upper_margin + (long)vmode->yres + |
300 | (long)vmode->lower_margin) - |
301 | (upper_margin + yres + lower_margin); |
302 | if (dy < 0) |
303 | return -1; |
304 | |
305 | /* exact match */ |
306 | if (!dx && !dy) |
307 | return 0; |
308 | |
309 | /* resolution difference */ |
310 | return (vmode->xres - xres) * (vmode->yres - yres); |
311 | } |
312 | |
313 | static const struct fb_videomode *ps3fb_native_vmode(enum ps3av_mode_num id) |
314 | { |
315 | return &ps3fb_modedb[FIRST_NATIVE_MODE_INDEX + id - 1]; |
316 | } |
317 | |
318 | static const struct fb_videomode *ps3fb_vmode(int id) |
319 | { |
320 | u32 mode = id & PS3AV_MODE_MASK; |
321 | |
322 | if (mode < PS3AV_MODE_480I || mode > PS3AV_MODE_WUXGA) |
323 | return NULL; |
324 | |
325 | if (mode <= PS3AV_MODE_1080P50 && !(id & PS3AV_MODE_FULL)) { |
326 | /* Non-fullscreen broadcast mode */ |
327 | return &ps3fb_modedb[mode - 1]; |
328 | } |
329 | |
330 | return ps3fb_native_vmode(mode); |
331 | } |
332 | |
333 | static unsigned int ps3fb_find_mode(struct fb_var_screeninfo *var, |
334 | u32 *ddr_line_length, u32 *xdr_line_length) |
335 | { |
336 | unsigned int id, best_id; |
337 | int diff, best_diff; |
338 | const struct fb_videomode *vmode; |
339 | long gap; |
340 | |
341 | best_id = 0; |
342 | best_diff = INT_MAX; |
343 | pr_debug("%s: wanted %u [%u] %u x %u [%u] %u\n" , __func__, |
344 | var->left_margin, var->xres, var->right_margin, |
345 | var->upper_margin, var->yres, var->lower_margin); |
346 | for (id = PS3AV_MODE_480I; id <= PS3AV_MODE_WUXGA; id++) { |
347 | vmode = ps3fb_native_vmode(id); |
348 | diff = ps3fb_cmp_mode(vmode, var); |
349 | pr_debug("%s: mode %u: %u [%u] %u x %u [%u] %u: diff = %d\n" , |
350 | __func__, id, vmode->left_margin, vmode->xres, |
351 | vmode->right_margin, vmode->upper_margin, |
352 | vmode->yres, vmode->lower_margin, diff); |
353 | if (diff < 0) |
354 | continue; |
355 | if (diff < best_diff) { |
356 | best_id = id; |
357 | if (!diff) |
358 | break; |
359 | best_diff = diff; |
360 | } |
361 | } |
362 | |
363 | if (!best_id) { |
364 | pr_debug("%s: no suitable mode found\n" , __func__); |
365 | return 0; |
366 | } |
367 | |
368 | id = best_id; |
369 | vmode = ps3fb_native_vmode(id); |
370 | |
371 | *ddr_line_length = vmode->xres * BPP; |
372 | |
373 | /* minimum resolution */ |
374 | if (!var->xres) |
375 | var->xres = 1; |
376 | if (!var->yres) |
377 | var->yres = 1; |
378 | |
379 | /* minimum virtual resolution */ |
380 | if (var->xres_virtual < var->xres) |
381 | var->xres_virtual = var->xres; |
382 | if (var->yres_virtual < var->yres) |
383 | var->yres_virtual = var->yres; |
384 | |
385 | /* minimum margins */ |
386 | if (var->left_margin < vmode->left_margin) |
387 | var->left_margin = vmode->left_margin; |
388 | if (var->right_margin < vmode->right_margin) |
389 | var->right_margin = vmode->right_margin; |
390 | if (var->upper_margin < vmode->upper_margin) |
391 | var->upper_margin = vmode->upper_margin; |
392 | if (var->lower_margin < vmode->lower_margin) |
393 | var->lower_margin = vmode->lower_margin; |
394 | |
395 | /* extra margins */ |
396 | gap = ((long)vmode->left_margin + (long)vmode->xres + |
397 | (long)vmode->right_margin) - |
398 | ((long)var->left_margin + (long)var->xres + |
399 | (long)var->right_margin); |
400 | if (gap > 0) { |
401 | var->left_margin += gap/2; |
402 | var->right_margin += (gap+1)/2; |
403 | pr_debug("%s: rounded up H to %u [%u] %u\n" , __func__, |
404 | var->left_margin, var->xres, var->right_margin); |
405 | } |
406 | |
407 | gap = ((long)vmode->upper_margin + (long)vmode->yres + |
408 | (long)vmode->lower_margin) - |
409 | ((long)var->upper_margin + (long)var->yres + |
410 | (long)var->lower_margin); |
411 | if (gap > 0) { |
412 | var->upper_margin += gap/2; |
413 | var->lower_margin += (gap+1)/2; |
414 | pr_debug("%s: rounded up V to %u [%u] %u\n" , __func__, |
415 | var->upper_margin, var->yres, var->lower_margin); |
416 | } |
417 | |
418 | /* fixed fields */ |
419 | var->pixclock = vmode->pixclock; |
420 | var->hsync_len = vmode->hsync_len; |
421 | var->vsync_len = vmode->vsync_len; |
422 | var->sync = vmode->sync; |
423 | |
424 | if (ps3_compare_firmware_version(1, 9, 0) >= 0) { |
425 | *xdr_line_length = GPU_ALIGN_UP(var->xres_virtual * BPP); |
426 | if (*xdr_line_length > GPU_MAX_LINE_LENGTH) |
427 | *xdr_line_length = GPU_MAX_LINE_LENGTH; |
428 | } else |
429 | *xdr_line_length = *ddr_line_length; |
430 | |
431 | if (vmode->sync & FB_SYNC_BROADCAST) { |
432 | /* Full broadcast modes have the full mode bit set */ |
433 | if (vmode->xres == var->xres && vmode->yres == var->yres) |
434 | id |= PS3AV_MODE_FULL; |
435 | } |
436 | |
437 | pr_debug("%s: mode %u\n" , __func__, id); |
438 | return id; |
439 | } |
440 | |
441 | static void ps3fb_sync_image(struct device *dev, u64 frame_offset, |
442 | u64 dst_offset, u64 src_offset, u32 width, |
443 | u32 height, u32 dst_line_length, |
444 | u32 src_line_length) |
445 | { |
446 | int status; |
447 | u64 line_length; |
448 | |
449 | line_length = dst_line_length; |
450 | if (src_line_length != dst_line_length) |
451 | line_length |= (u64)src_line_length << 32; |
452 | |
453 | src_offset += GPU_FB_START; |
454 | |
455 | mutex_lock(&ps3_gpu_mutex); |
456 | status = lv1_gpu_fb_blit(ps3fb.context_handle, dst_offset, |
457 | GPU_IOIF + src_offset, |
458 | L1GPU_FB_BLIT_WAIT_FOR_COMPLETION | |
459 | (width << 16) | height, |
460 | line_length); |
461 | mutex_unlock(lock: &ps3_gpu_mutex); |
462 | |
463 | if (status) |
464 | dev_err(dev, "%s: lv1_gpu_fb_blit failed: %d\n" , __func__, |
465 | status); |
466 | #ifdef HEAD_A |
467 | status = lv1_gpu_display_flip(ps3fb.context_handle, 0, frame_offset); |
468 | if (status) |
469 | dev_err(dev, "%s: lv1_gpu_display_flip failed: %d\n" , __func__, |
470 | status); |
471 | #endif |
472 | #ifdef HEAD_B |
473 | status = lv1_gpu_display_flip(ps3fb.context_handle, 1, frame_offset); |
474 | if (status) |
475 | dev_err(dev, "%s: lv1_gpu_display_flip failed: %d\n" , __func__, |
476 | status); |
477 | #endif |
478 | } |
479 | |
480 | static int ps3fb_sync(struct fb_info *info, u32 frame) |
481 | { |
482 | struct ps3fb_par *par = info->par; |
483 | int error = 0; |
484 | u64 ddr_base, xdr_base; |
485 | |
486 | if (frame > par->num_frames - 1) { |
487 | dev_dbg(info->device, "%s: invalid frame number (%u)\n" , |
488 | __func__, frame); |
489 | error = -EINVAL; |
490 | goto out; |
491 | } |
492 | |
493 | xdr_base = frame * par->xdr_frame_size; |
494 | ddr_base = frame * par->ddr_frame_size; |
495 | |
496 | ps3fb_sync_image(dev: info->device, frame_offset: ddr_base + par->full_offset, |
497 | dst_offset: ddr_base + par->fb_offset, src_offset: xdr_base + par->pan_offset, |
498 | width: par->width, height: par->height, dst_line_length: par->ddr_line_length, |
499 | src_line_length: info->fix.line_length); |
500 | |
501 | out: |
502 | return error; |
503 | } |
504 | |
505 | static int ps3fb_open(struct fb_info *info, int user) |
506 | { |
507 | atomic_inc(v: &ps3fb.f_count); |
508 | return 0; |
509 | } |
510 | |
511 | static int ps3fb_release(struct fb_info *info, int user) |
512 | { |
513 | if (atomic_dec_and_test(v: &ps3fb.f_count)) { |
514 | if (atomic_read(v: &ps3fb.ext_flip)) { |
515 | atomic_set(v: &ps3fb.ext_flip, i: 0); |
516 | if (console_trylock()) { |
517 | ps3fb_sync(info, frame: 0); /* single buffer */ |
518 | console_unlock(); |
519 | } |
520 | } |
521 | } |
522 | return 0; |
523 | } |
524 | |
525 | /* |
526 | * Setting the video mode has been split into two parts. |
527 | * First part, xxxfb_check_var, must not write anything |
528 | * to hardware, it should only verify and adjust var. |
529 | * This means it doesn't alter par but it does use hardware |
530 | * data from it to check this var. |
531 | */ |
532 | |
533 | static int ps3fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) |
534 | { |
535 | u32 xdr_line_length, ddr_line_length; |
536 | int mode; |
537 | |
538 | mode = ps3fb_find_mode(var, ddr_line_length: &ddr_line_length, xdr_line_length: &xdr_line_length); |
539 | if (!mode) |
540 | return -EINVAL; |
541 | |
542 | /* Virtual screen */ |
543 | if (var->xres_virtual > xdr_line_length / BPP) { |
544 | dev_dbg(info->device, |
545 | "Horizontal virtual screen size too large\n" ); |
546 | return -EINVAL; |
547 | } |
548 | |
549 | if (var->xoffset + var->xres > var->xres_virtual || |
550 | var->yoffset + var->yres > var->yres_virtual) { |
551 | dev_dbg(info->device, "panning out-of-range\n" ); |
552 | return -EINVAL; |
553 | } |
554 | |
555 | /* We support ARGB8888 only */ |
556 | if (var->bits_per_pixel > 32 || var->grayscale || |
557 | var->red.offset > 16 || var->green.offset > 8 || |
558 | var->blue.offset > 0 || var->transp.offset > 24 || |
559 | var->red.length > 8 || var->green.length > 8 || |
560 | var->blue.length > 8 || var->transp.length > 8 || |
561 | var->red.msb_right || var->green.msb_right || |
562 | var->blue.msb_right || var->transp.msb_right || var->nonstd) { |
563 | dev_dbg(info->device, "We support ARGB8888 only\n" ); |
564 | return -EINVAL; |
565 | } |
566 | |
567 | var->bits_per_pixel = 32; |
568 | var->red.offset = 16; |
569 | var->green.offset = 8; |
570 | var->blue.offset = 0; |
571 | var->transp.offset = 24; |
572 | var->red.length = 8; |
573 | var->green.length = 8; |
574 | var->blue.length = 8; |
575 | var->transp.length = 8; |
576 | var->red.msb_right = 0; |
577 | var->green.msb_right = 0; |
578 | var->blue.msb_right = 0; |
579 | var->transp.msb_right = 0; |
580 | |
581 | /* Rotation is not supported */ |
582 | if (var->rotate) { |
583 | dev_dbg(info->device, "Rotation is not supported\n" ); |
584 | return -EINVAL; |
585 | } |
586 | |
587 | /* Memory limit */ |
588 | if (var->yres_virtual * xdr_line_length > info->fix.smem_len) { |
589 | dev_dbg(info->device, "Not enough memory\n" ); |
590 | return -ENOMEM; |
591 | } |
592 | |
593 | var->height = -1; |
594 | var->width = -1; |
595 | |
596 | return 0; |
597 | } |
598 | |
599 | /* |
600 | * This routine actually sets the video mode. |
601 | */ |
602 | |
603 | static int ps3fb_set_par(struct fb_info *info) |
604 | { |
605 | struct ps3fb_par *par = info->par; |
606 | unsigned int mode, ddr_line_length, xdr_line_length, lines, maxlines; |
607 | unsigned int ddr_xoff, ddr_yoff, offset; |
608 | const struct fb_videomode *vmode; |
609 | u64 dst; |
610 | |
611 | mode = ps3fb_find_mode(var: &info->var, ddr_line_length: &ddr_line_length, xdr_line_length: &xdr_line_length); |
612 | if (!mode) |
613 | return -EINVAL; |
614 | |
615 | vmode = ps3fb_native_vmode(id: mode & PS3AV_MODE_MASK); |
616 | |
617 | info->fix.xpanstep = info->var.xres_virtual > info->var.xres ? 1 : 0; |
618 | info->fix.ypanstep = info->var.yres_virtual > info->var.yres ? 1 : 0; |
619 | info->fix.line_length = xdr_line_length; |
620 | |
621 | par->ddr_line_length = ddr_line_length; |
622 | par->ddr_frame_size = vmode->yres * ddr_line_length; |
623 | par->xdr_frame_size = info->var.yres_virtual * xdr_line_length; |
624 | |
625 | par->num_frames = info->fix.smem_len / |
626 | max(par->ddr_frame_size, par->xdr_frame_size); |
627 | |
628 | /* Keep the special bits we cannot set using fb_var_screeninfo */ |
629 | par->new_mode_id = (par->new_mode_id & ~PS3AV_MODE_MASK) | mode; |
630 | |
631 | par->width = info->var.xres; |
632 | par->height = info->var.yres; |
633 | |
634 | /* Start of the virtual frame buffer (relative to fullscreen) */ |
635 | ddr_xoff = info->var.left_margin - vmode->left_margin; |
636 | ddr_yoff = info->var.upper_margin - vmode->upper_margin; |
637 | offset = ddr_yoff * ddr_line_length + ddr_xoff * BPP; |
638 | |
639 | par->fb_offset = GPU_ALIGN_UP(offset); |
640 | par->full_offset = par->fb_offset - offset; |
641 | par->pan_offset = info->var.yoffset * xdr_line_length + |
642 | info->var.xoffset * BPP; |
643 | |
644 | if (par->new_mode_id != par->mode_id) { |
645 | if (ps3av_set_video_mode(par->new_mode_id)) { |
646 | par->new_mode_id = par->mode_id; |
647 | return -EINVAL; |
648 | } |
649 | par->mode_id = par->new_mode_id; |
650 | } |
651 | |
652 | /* Clear XDR frame buffer memory */ |
653 | memset(info->screen_buffer, 0, info->fix.smem_len); |
654 | |
655 | /* Clear DDR frame buffer memory */ |
656 | lines = vmode->yres * par->num_frames; |
657 | if (par->full_offset) |
658 | lines++; |
659 | maxlines = info->fix.smem_len / ddr_line_length; |
660 | for (dst = 0; lines; dst += maxlines * ddr_line_length) { |
661 | unsigned int l = min(lines, maxlines); |
662 | ps3fb_sync_image(dev: info->device, frame_offset: 0, dst_offset: dst, src_offset: 0, width: vmode->xres, height: l, |
663 | dst_line_length: ddr_line_length, src_line_length: ddr_line_length); |
664 | lines -= l; |
665 | } |
666 | |
667 | return 0; |
668 | } |
669 | |
670 | /* |
671 | * Set a single color register. The values supplied are already |
672 | * rounded down to the hardware's capabilities (according to the |
673 | * entries in the var structure). Return != 0 for invalid regno. |
674 | */ |
675 | |
676 | static int ps3fb_setcolreg(unsigned int regno, unsigned int red, |
677 | unsigned int green, unsigned int blue, |
678 | unsigned int transp, struct fb_info *info) |
679 | { |
680 | if (regno >= 16) |
681 | return 1; |
682 | |
683 | red >>= 8; |
684 | green >>= 8; |
685 | blue >>= 8; |
686 | transp >>= 8; |
687 | |
688 | ((u32 *)info->pseudo_palette)[regno] = transp << 24 | red << 16 | |
689 | green << 8 | blue; |
690 | return 0; |
691 | } |
692 | |
693 | static int ps3fb_pan_display(struct fb_var_screeninfo *var, |
694 | struct fb_info *info) |
695 | { |
696 | struct ps3fb_par *par = info->par; |
697 | |
698 | par->pan_offset = var->yoffset * info->fix.line_length + |
699 | var->xoffset * BPP; |
700 | return 0; |
701 | } |
702 | |
703 | /* |
704 | * As we have a virtual frame buffer, we need our own mmap function |
705 | */ |
706 | |
707 | static int ps3fb_mmap(struct fb_info *info, struct vm_area_struct *vma) |
708 | { |
709 | int r; |
710 | |
711 | vma->vm_page_prot = pgprot_decrypted(vma->vm_page_prot); |
712 | |
713 | r = vm_iomap_memory(vma, start: info->fix.smem_start, len: info->fix.smem_len); |
714 | |
715 | dev_dbg(info->device, "ps3fb: mmap framebuffer P(%lx)->V(%lx)\n" , |
716 | info->fix.smem_start + (vma->vm_pgoff << PAGE_SHIFT), |
717 | vma->vm_start); |
718 | |
719 | return r; |
720 | } |
721 | |
722 | /* |
723 | * Blank the display |
724 | */ |
725 | |
726 | static int ps3fb_blank(int blank, struct fb_info *info) |
727 | { |
728 | int retval; |
729 | |
730 | dev_dbg(info->device, "%s: blank:%d\n" , __func__, blank); |
731 | switch (blank) { |
732 | case FB_BLANK_POWERDOWN: |
733 | case FB_BLANK_HSYNC_SUSPEND: |
734 | case FB_BLANK_VSYNC_SUSPEND: |
735 | case FB_BLANK_NORMAL: |
736 | retval = ps3av_video_mute(1); /* mute on */ |
737 | if (!retval) |
738 | ps3fb.is_blanked = 1; |
739 | break; |
740 | |
741 | default: /* unblank */ |
742 | retval = ps3av_video_mute(0); /* mute off */ |
743 | if (!retval) |
744 | ps3fb.is_blanked = 0; |
745 | break; |
746 | } |
747 | return retval; |
748 | } |
749 | |
750 | static int ps3fb_get_vblank(struct fb_vblank *vblank) |
751 | { |
752 | memset(vblank, 0, sizeof(*vblank)); |
753 | vblank->flags = FB_VBLANK_HAVE_VSYNC; |
754 | return 0; |
755 | } |
756 | |
757 | static int ps3fb_wait_for_vsync(u32 crtc) |
758 | { |
759 | int ret; |
760 | u64 count; |
761 | |
762 | count = ps3fb.vblank_count; |
763 | ret = wait_event_interruptible_timeout(ps3fb.wait_vsync, |
764 | count != ps3fb.vblank_count, |
765 | HZ / 10); |
766 | if (!ret) |
767 | return -ETIMEDOUT; |
768 | |
769 | return 0; |
770 | } |
771 | |
772 | |
773 | /* |
774 | * ioctl |
775 | */ |
776 | |
777 | static int ps3fb_ioctl(struct fb_info *info, unsigned int cmd, |
778 | unsigned long arg) |
779 | { |
780 | void __user *argp = (void __user *)arg; |
781 | u32 val; |
782 | int retval = -EFAULT; |
783 | |
784 | switch (cmd) { |
785 | case FBIOGET_VBLANK: |
786 | { |
787 | struct fb_vblank vblank; |
788 | dev_dbg(info->device, "FBIOGET_VBLANK:\n" ); |
789 | retval = ps3fb_get_vblank(vblank: &vblank); |
790 | if (retval) |
791 | break; |
792 | |
793 | if (copy_to_user(to: argp, from: &vblank, n: sizeof(vblank))) |
794 | retval = -EFAULT; |
795 | break; |
796 | } |
797 | |
798 | case FBIO_WAITFORVSYNC: |
799 | { |
800 | u32 crt; |
801 | dev_dbg(info->device, "FBIO_WAITFORVSYNC:\n" ); |
802 | if (get_user(crt, (u32 __user *) arg)) |
803 | break; |
804 | |
805 | retval = ps3fb_wait_for_vsync(crtc: crt); |
806 | break; |
807 | } |
808 | |
809 | case PS3FB_IOCTL_SETMODE: |
810 | { |
811 | struct ps3fb_par *par = info->par; |
812 | const struct fb_videomode *vmode; |
813 | struct fb_var_screeninfo var; |
814 | |
815 | if (copy_from_user(to: &val, from: argp, n: sizeof(val))) |
816 | break; |
817 | |
818 | if (!(val & PS3AV_MODE_MASK)) { |
819 | u32 id = ps3av_get_auto_mode(); |
820 | if (id > 0) |
821 | val = (val & ~PS3AV_MODE_MASK) | id; |
822 | } |
823 | dev_dbg(info->device, "PS3FB_IOCTL_SETMODE:%x\n" , val); |
824 | retval = -EINVAL; |
825 | vmode = ps3fb_vmode(id: val); |
826 | if (vmode) { |
827 | var = info->var; |
828 | fb_videomode_to_var(var: &var, mode: vmode); |
829 | console_lock(); |
830 | /* Force, in case only special bits changed */ |
831 | var.activate |= FB_ACTIVATE_FORCE; |
832 | par->new_mode_id = val; |
833 | retval = fb_set_var(info, var: &var); |
834 | if (!retval) |
835 | fbcon_update_vcs(info, all: var.activate & FB_ACTIVATE_ALL); |
836 | console_unlock(); |
837 | } |
838 | break; |
839 | } |
840 | |
841 | case PS3FB_IOCTL_GETMODE: |
842 | val = ps3av_get_mode(); |
843 | dev_dbg(info->device, "PS3FB_IOCTL_GETMODE:%x\n" , val); |
844 | if (!copy_to_user(to: argp, from: &val, n: sizeof(val))) |
845 | retval = 0; |
846 | break; |
847 | |
848 | case PS3FB_IOCTL_SCREENINFO: |
849 | { |
850 | struct ps3fb_par *par = info->par; |
851 | struct ps3fb_ioctl_res res; |
852 | dev_dbg(info->device, "PS3FB_IOCTL_SCREENINFO:\n" ); |
853 | res.xres = info->fix.line_length / BPP; |
854 | res.yres = info->var.yres_virtual; |
855 | res.xoff = (res.xres - info->var.xres) / 2; |
856 | res.yoff = (res.yres - info->var.yres) / 2; |
857 | res.num_frames = par->num_frames; |
858 | if (!copy_to_user(to: argp, from: &res, n: sizeof(res))) |
859 | retval = 0; |
860 | break; |
861 | } |
862 | |
863 | case PS3FB_IOCTL_ON: |
864 | dev_dbg(info->device, "PS3FB_IOCTL_ON:\n" ); |
865 | atomic_inc(v: &ps3fb.ext_flip); |
866 | retval = 0; |
867 | break; |
868 | |
869 | case PS3FB_IOCTL_OFF: |
870 | dev_dbg(info->device, "PS3FB_IOCTL_OFF:\n" ); |
871 | atomic_dec_if_positive(v: &ps3fb.ext_flip); |
872 | retval = 0; |
873 | break; |
874 | |
875 | case PS3FB_IOCTL_FSEL: |
876 | if (copy_from_user(to: &val, from: argp, n: sizeof(val))) |
877 | break; |
878 | |
879 | dev_dbg(info->device, "PS3FB_IOCTL_FSEL:%d\n" , val); |
880 | console_lock(); |
881 | retval = ps3fb_sync(info, frame: val); |
882 | console_unlock(); |
883 | break; |
884 | |
885 | default: |
886 | retval = -ENOIOCTLCMD; |
887 | break; |
888 | } |
889 | return retval; |
890 | } |
891 | |
892 | static int ps3fbd(void *arg) |
893 | { |
894 | struct fb_info *info = arg; |
895 | |
896 | set_freezable(); |
897 | while (!kthread_should_stop()) { |
898 | try_to_freeze(); |
899 | set_current_state(TASK_INTERRUPTIBLE); |
900 | if (ps3fb.is_kicked) { |
901 | ps3fb.is_kicked = 0; |
902 | console_lock(); |
903 | ps3fb_sync(info, frame: 0); /* single buffer */ |
904 | console_unlock(); |
905 | } |
906 | schedule(); |
907 | } |
908 | return 0; |
909 | } |
910 | |
911 | static irqreturn_t ps3fb_vsync_interrupt(int irq, void *ptr) |
912 | { |
913 | struct device *dev = ptr; |
914 | u64 v1; |
915 | int status; |
916 | struct display_head *head = &ps3fb.dinfo->display_head[1]; |
917 | |
918 | status = lv1_gpu_context_intr(ps3fb.context_handle, &v1); |
919 | if (status) { |
920 | dev_err(dev, "%s: lv1_gpu_context_intr failed: %d\n" , __func__, |
921 | status); |
922 | return IRQ_NONE; |
923 | } |
924 | |
925 | if (v1 & (1 << GPU_INTR_STATUS_VSYNC_1)) { |
926 | /* VSYNC */ |
927 | ps3fb.vblank_count = head->vblank_count; |
928 | if (ps3fb.task && !ps3fb.is_blanked && |
929 | !atomic_read(v: &ps3fb.ext_flip)) { |
930 | ps3fb.is_kicked = 1; |
931 | wake_up_process(tsk: ps3fb.task); |
932 | } |
933 | wake_up_interruptible(&ps3fb.wait_vsync); |
934 | } |
935 | |
936 | return IRQ_HANDLED; |
937 | } |
938 | |
939 | |
940 | static const struct fb_ops ps3fb_ops = { |
941 | .owner = THIS_MODULE, |
942 | .fb_open = ps3fb_open, |
943 | .fb_release = ps3fb_release, |
944 | __FB_DEFAULT_SYSMEM_OPS_RDWR, |
945 | .fb_check_var = ps3fb_check_var, |
946 | .fb_set_par = ps3fb_set_par, |
947 | .fb_setcolreg = ps3fb_setcolreg, |
948 | .fb_pan_display = ps3fb_pan_display, |
949 | __FB_DEFAULT_SYSMEM_OPS_DRAW, |
950 | .fb_mmap = ps3fb_mmap, |
951 | .fb_blank = ps3fb_blank, |
952 | .fb_ioctl = ps3fb_ioctl, |
953 | .fb_compat_ioctl = ps3fb_ioctl |
954 | }; |
955 | |
956 | static const struct fb_fix_screeninfo ps3fb_fix = { |
957 | .id = DEVICE_NAME, |
958 | .type = FB_TYPE_PACKED_PIXELS, |
959 | .visual = FB_VISUAL_TRUECOLOR, |
960 | .accel = FB_ACCEL_NONE, |
961 | }; |
962 | |
963 | static int ps3fb_probe(struct ps3_system_bus_device *dev) |
964 | { |
965 | struct fb_info *info; |
966 | struct ps3fb_par *par; |
967 | int retval; |
968 | u64 ddr_lpar = 0; |
969 | u64 lpar_dma_control = 0; |
970 | u64 lpar_driver_info = 0; |
971 | u64 lpar_reports = 0; |
972 | u64 lpar_reports_size = 0; |
973 | u64 xdr_lpar; |
974 | struct gpu_driver_info *dinfo; |
975 | void *fb_start; |
976 | int status; |
977 | struct task_struct *task; |
978 | unsigned long max_ps3fb_size; |
979 | |
980 | if (ps3fb_videomemory.size < GPU_CMD_BUF_SIZE) { |
981 | dev_err(&dev->core, "%s: Not enough video memory\n" , __func__); |
982 | return -ENOMEM; |
983 | } |
984 | |
985 | retval = ps3_open_hv_device(dev); |
986 | if (retval) { |
987 | dev_err(&dev->core, "%s: ps3_open_hv_device failed\n" , |
988 | __func__); |
989 | goto err; |
990 | } |
991 | |
992 | if (!ps3fb_mode) |
993 | ps3fb_mode = ps3av_get_mode(); |
994 | dev_dbg(&dev->core, "ps3fb_mode: %d\n" , ps3fb_mode); |
995 | |
996 | atomic_set(v: &ps3fb.f_count, i: -1); /* fbcon opens ps3fb */ |
997 | atomic_set(v: &ps3fb.ext_flip, i: 0); /* for flip with vsync */ |
998 | init_waitqueue_head(&ps3fb.wait_vsync); |
999 | |
1000 | #ifdef HEAD_A |
1001 | status = lv1_gpu_display_sync(0x0, 0, L1GPU_DISPLAY_SYNC_VSYNC); |
1002 | if (status) { |
1003 | dev_err(&dev->core, "%s: lv1_gpu_display_sync failed: %d\n" , |
1004 | __func__, status); |
1005 | retval = -ENODEV; |
1006 | goto err_close_device; |
1007 | } |
1008 | #endif |
1009 | #ifdef HEAD_B |
1010 | status = lv1_gpu_display_sync(0x0, 1, L1GPU_DISPLAY_SYNC_VSYNC); |
1011 | if (status) { |
1012 | dev_err(&dev->core, "%s: lv1_gpu_display_sync failed: %d\n" , |
1013 | __func__, status); |
1014 | retval = -ENODEV; |
1015 | goto err_close_device; |
1016 | } |
1017 | #endif |
1018 | |
1019 | max_ps3fb_size = ALIGN(GPU_IOIF, 256*1024*1024) - GPU_IOIF; |
1020 | if (ps3fb_videomemory.size > max_ps3fb_size) { |
1021 | dev_info(&dev->core, "Limiting ps3fb mem size to %lu bytes\n" , |
1022 | max_ps3fb_size); |
1023 | ps3fb_videomemory.size = max_ps3fb_size; |
1024 | } |
1025 | |
1026 | /* get gpu context handle */ |
1027 | status = lv1_gpu_memory_allocate(ps3fb_videomemory.size, 0, 0, 0, 0, |
1028 | &ps3fb.memory_handle, &ddr_lpar); |
1029 | if (status) { |
1030 | dev_err(&dev->core, "%s: lv1_gpu_memory_allocate failed: %d\n" , |
1031 | __func__, status); |
1032 | retval = -ENOMEM; |
1033 | goto err_close_device; |
1034 | } |
1035 | dev_dbg(&dev->core, "ddr:lpar:0x%llx\n" , ddr_lpar); |
1036 | |
1037 | status = lv1_gpu_context_allocate(ps3fb.memory_handle, 0, |
1038 | &ps3fb.context_handle, |
1039 | &lpar_dma_control, &lpar_driver_info, |
1040 | &lpar_reports, &lpar_reports_size); |
1041 | if (status) { |
1042 | dev_err(&dev->core, |
1043 | "%s: lv1_gpu_context_allocate failed: %d\n" , __func__, |
1044 | status); |
1045 | retval = -ENOMEM; |
1046 | goto err_gpu_memory_free; |
1047 | } |
1048 | |
1049 | /* vsync interrupt */ |
1050 | dinfo = (void __force *)ioremap(offset: lpar_driver_info, size: 128 * 1024); |
1051 | if (!dinfo) { |
1052 | dev_err(&dev->core, "%s: ioremap failed\n" , __func__); |
1053 | retval = -ENOMEM; |
1054 | goto err_gpu_context_free; |
1055 | } |
1056 | |
1057 | ps3fb.dinfo = dinfo; |
1058 | dev_dbg(&dev->core, "version_driver:%x\n" , dinfo->version_driver); |
1059 | dev_dbg(&dev->core, "irq outlet:%x\n" , dinfo->irq.irq_outlet); |
1060 | dev_dbg(&dev->core, "version_gpu: %x memory_size: %x ch: %x " |
1061 | "core_freq: %d mem_freq:%d\n" , dinfo->version_gpu, |
1062 | dinfo->memory_size, dinfo->hardware_channel, |
1063 | dinfo->nvcore_frequency/1000000, |
1064 | dinfo->memory_frequency/1000000); |
1065 | |
1066 | if (dinfo->version_driver != GPU_DRIVER_INFO_VERSION) { |
1067 | dev_err(&dev->core, "%s: version_driver err:%x\n" , __func__, |
1068 | dinfo->version_driver); |
1069 | retval = -EINVAL; |
1070 | goto err_iounmap_dinfo; |
1071 | } |
1072 | |
1073 | retval = ps3_irq_plug_setup(PS3_BINDING_CPU_ANY, dinfo->irq.irq_outlet, |
1074 | &ps3fb.irq_no); |
1075 | if (retval) { |
1076 | dev_err(&dev->core, "%s: ps3_alloc_irq failed %d\n" , __func__, |
1077 | retval); |
1078 | goto err_iounmap_dinfo; |
1079 | } |
1080 | |
1081 | retval = request_irq(irq: ps3fb.irq_no, handler: ps3fb_vsync_interrupt, |
1082 | flags: 0, DEVICE_NAME, dev: &dev->core); |
1083 | if (retval) { |
1084 | dev_err(&dev->core, "%s: request_irq failed %d\n" , __func__, |
1085 | retval); |
1086 | goto err_destroy_plug; |
1087 | } |
1088 | |
1089 | dinfo->irq.mask = (1 << GPU_INTR_STATUS_VSYNC_1) | |
1090 | (1 << GPU_INTR_STATUS_FLIP_1); |
1091 | |
1092 | /* Clear memory to prevent kernel info leakage into userspace */ |
1093 | memset(ps3fb_videomemory.address, 0, ps3fb_videomemory.size); |
1094 | |
1095 | xdr_lpar = ps3_mm_phys_to_lpar(__pa(ps3fb_videomemory.address)); |
1096 | |
1097 | status = lv1_gpu_context_iomap(ps3fb.context_handle, GPU_IOIF, |
1098 | xdr_lpar, ps3fb_videomemory.size, |
1099 | CBE_IOPTE_PP_W | CBE_IOPTE_PP_R | |
1100 | CBE_IOPTE_M); |
1101 | if (status) { |
1102 | dev_err(&dev->core, "%s: lv1_gpu_context_iomap failed: %d\n" , |
1103 | __func__, status); |
1104 | retval = -ENXIO; |
1105 | goto err_free_irq; |
1106 | } |
1107 | |
1108 | dev_dbg(&dev->core, "video:%p ioif:%lx lpar:%llx size:%lx\n" , |
1109 | ps3fb_videomemory.address, GPU_IOIF, xdr_lpar, |
1110 | ps3fb_videomemory.size); |
1111 | |
1112 | status = lv1_gpu_fb_setup(ps3fb.context_handle, xdr_lpar, |
1113 | GPU_CMD_BUF_SIZE, GPU_IOIF); |
1114 | if (status) { |
1115 | dev_err(&dev->core, "%s: lv1_gpu_fb_setup failed: %d\n" , |
1116 | __func__, status); |
1117 | retval = -ENXIO; |
1118 | goto err_context_unmap; |
1119 | } |
1120 | |
1121 | info = framebuffer_alloc(size: sizeof(struct ps3fb_par), dev: &dev->core); |
1122 | if (!info) { |
1123 | retval = -ENOMEM; |
1124 | goto err_context_fb_close; |
1125 | } |
1126 | |
1127 | par = info->par; |
1128 | par->mode_id = ~ps3fb_mode; /* != ps3fb_mode, to trigger change */ |
1129 | par->new_mode_id = ps3fb_mode; |
1130 | par->num_frames = 1; |
1131 | |
1132 | info->fbops = &ps3fb_ops; |
1133 | info->fix = ps3fb_fix; |
1134 | |
1135 | /* |
1136 | * The GPU command buffer is at the start of video memory |
1137 | * As we don't use the full command buffer, we can put the actual |
1138 | * frame buffer at offset GPU_FB_START and save some precious XDR |
1139 | * memory |
1140 | */ |
1141 | fb_start = ps3fb_videomemory.address + GPU_FB_START; |
1142 | info->screen_buffer = fb_start; |
1143 | info->fix.smem_start = __pa(fb_start); |
1144 | info->fix.smem_len = ps3fb_videomemory.size - GPU_FB_START; |
1145 | |
1146 | info->pseudo_palette = par->pseudo_palette; |
1147 | info->flags = FBINFO_VIRTFB | FBINFO_READS_FAST | |
1148 | FBINFO_HWACCEL_XPAN | FBINFO_HWACCEL_YPAN; |
1149 | |
1150 | retval = fb_alloc_cmap(cmap: &info->cmap, len: 256, transp: 0); |
1151 | if (retval < 0) |
1152 | goto err_framebuffer_release; |
1153 | |
1154 | if (!fb_find_mode(var: &info->var, info, mode_option, db: ps3fb_modedb, |
1155 | ARRAY_SIZE(ps3fb_modedb), |
1156 | default_mode: ps3fb_vmode(id: par->new_mode_id), default_bpp: 32)) { |
1157 | retval = -EINVAL; |
1158 | goto err_fb_dealloc; |
1159 | } |
1160 | |
1161 | fb_videomode_to_modelist(modedb: ps3fb_modedb, ARRAY_SIZE(ps3fb_modedb), |
1162 | head: &info->modelist); |
1163 | |
1164 | retval = register_framebuffer(fb_info: info); |
1165 | if (retval < 0) |
1166 | goto err_fb_dealloc; |
1167 | |
1168 | ps3_system_bus_set_drvdata(dev, info); |
1169 | |
1170 | fb_info(info, "using %u KiB of video memory\n" , info->fix.smem_len >> 10); |
1171 | |
1172 | task = kthread_run(ps3fbd, info, DEVICE_NAME); |
1173 | if (IS_ERR(ptr: task)) { |
1174 | retval = PTR_ERR(ptr: task); |
1175 | goto err_unregister_framebuffer; |
1176 | } |
1177 | |
1178 | ps3fb.task = task; |
1179 | |
1180 | return 0; |
1181 | |
1182 | err_unregister_framebuffer: |
1183 | unregister_framebuffer(fb_info: info); |
1184 | err_fb_dealloc: |
1185 | fb_dealloc_cmap(cmap: &info->cmap); |
1186 | err_framebuffer_release: |
1187 | framebuffer_release(info); |
1188 | err_context_fb_close: |
1189 | lv1_gpu_fb_close(ps3fb.context_handle); |
1190 | err_context_unmap: |
1191 | lv1_gpu_context_iomap(ps3fb.context_handle, GPU_IOIF, xdr_lpar, |
1192 | ps3fb_videomemory.size, CBE_IOPTE_M); |
1193 | err_free_irq: |
1194 | free_irq(ps3fb.irq_no, &dev->core); |
1195 | err_destroy_plug: |
1196 | ps3_irq_plug_destroy(ps3fb.irq_no); |
1197 | err_iounmap_dinfo: |
1198 | iounmap(addr: (u8 __force __iomem *)ps3fb.dinfo); |
1199 | err_gpu_context_free: |
1200 | lv1_gpu_context_free(ps3fb.context_handle); |
1201 | err_gpu_memory_free: |
1202 | lv1_gpu_memory_free(ps3fb.memory_handle); |
1203 | err_close_device: |
1204 | ps3_close_hv_device(dev); |
1205 | err: |
1206 | return retval; |
1207 | } |
1208 | |
1209 | static void ps3fb_shutdown(struct ps3_system_bus_device *dev) |
1210 | { |
1211 | struct fb_info *info = ps3_system_bus_get_drvdata(dev); |
1212 | u64 xdr_lpar = ps3_mm_phys_to_lpar(__pa(ps3fb_videomemory.address)); |
1213 | |
1214 | dev_dbg(&dev->core, " -> %s:%d\n" , __func__, __LINE__); |
1215 | |
1216 | atomic_inc(v: &ps3fb.ext_flip); /* flip off */ |
1217 | ps3fb.dinfo->irq.mask = 0; |
1218 | |
1219 | if (ps3fb.task) { |
1220 | struct task_struct *task = ps3fb.task; |
1221 | ps3fb.task = NULL; |
1222 | kthread_stop(k: task); |
1223 | } |
1224 | if (ps3fb.irq_no) { |
1225 | free_irq(ps3fb.irq_no, &dev->core); |
1226 | ps3_irq_plug_destroy(ps3fb.irq_no); |
1227 | } |
1228 | if (info) { |
1229 | unregister_framebuffer(fb_info: info); |
1230 | fb_dealloc_cmap(cmap: &info->cmap); |
1231 | framebuffer_release(info); |
1232 | ps3_system_bus_set_drvdata(dev, NULL); |
1233 | } |
1234 | iounmap(addr: (u8 __force __iomem *)ps3fb.dinfo); |
1235 | lv1_gpu_fb_close(ps3fb.context_handle); |
1236 | lv1_gpu_context_iomap(ps3fb.context_handle, GPU_IOIF, xdr_lpar, |
1237 | ps3fb_videomemory.size, CBE_IOPTE_M); |
1238 | lv1_gpu_context_free(ps3fb.context_handle); |
1239 | lv1_gpu_memory_free(ps3fb.memory_handle); |
1240 | ps3_close_hv_device(dev); |
1241 | dev_dbg(&dev->core, " <- %s:%d\n" , __func__, __LINE__); |
1242 | } |
1243 | |
1244 | static struct ps3_system_bus_driver ps3fb_driver = { |
1245 | .match_id = PS3_MATCH_ID_GPU, |
1246 | .match_sub_id = PS3_MATCH_SUB_ID_GPU_FB, |
1247 | .core.name = DEVICE_NAME, |
1248 | .core.owner = THIS_MODULE, |
1249 | .probe = ps3fb_probe, |
1250 | .remove = ps3fb_shutdown, |
1251 | .shutdown = ps3fb_shutdown, |
1252 | }; |
1253 | |
1254 | static int __init ps3fb_setup(void) |
1255 | { |
1256 | char *options; |
1257 | |
1258 | #ifdef MODULE |
1259 | return 0; |
1260 | #endif |
1261 | |
1262 | if (fb_get_options(DEVICE_NAME, option: &options)) |
1263 | return -ENXIO; |
1264 | |
1265 | if (!options || !*options) |
1266 | return 0; |
1267 | |
1268 | while (1) { |
1269 | char *this_opt = strsep(&options, "," ); |
1270 | |
1271 | if (!this_opt) |
1272 | break; |
1273 | if (!*this_opt) |
1274 | continue; |
1275 | if (!strncmp(this_opt, "mode:" , 5)) |
1276 | ps3fb_mode = simple_strtoul(this_opt + 5, NULL, 0); |
1277 | else |
1278 | mode_option = this_opt; |
1279 | } |
1280 | return 0; |
1281 | } |
1282 | |
1283 | static int __init ps3fb_init(void) |
1284 | { |
1285 | if (!ps3fb_videomemory.address || ps3fb_setup()) |
1286 | return -ENXIO; |
1287 | |
1288 | return ps3_system_bus_driver_register(&ps3fb_driver); |
1289 | } |
1290 | |
1291 | static void __exit ps3fb_exit(void) |
1292 | { |
1293 | pr_debug(" -> %s:%d\n" , __func__, __LINE__); |
1294 | ps3_system_bus_driver_unregister(&ps3fb_driver); |
1295 | pr_debug(" <- %s:%d\n" , __func__, __LINE__); |
1296 | } |
1297 | |
1298 | module_init(ps3fb_init); |
1299 | module_exit(ps3fb_exit); |
1300 | |
1301 | MODULE_LICENSE("GPL" ); |
1302 | MODULE_DESCRIPTION("PS3 GPU Frame Buffer Driver" ); |
1303 | MODULE_AUTHOR("Sony Computer Entertainment Inc." ); |
1304 | MODULE_ALIAS(PS3_MODULE_ALIAS_GPU_FB); |
1305 | |