xref: /linux/drivers/video/fbdev/ps3fb.c (revision 0ea5c948cb64bab5bc7a5516774eb8536f05aa0d)
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 
ps3fb_cmp_mode(const struct fb_videomode * vmode,const struct fb_var_screeninfo * var)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 
ps3fb_native_vmode(enum ps3av_mode_num id)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 
ps3fb_vmode(int id)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 
ps3fb_find_mode(struct fb_var_screeninfo * var,u32 * ddr_line_length,u32 * xdr_line_length)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 
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)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(&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 
ps3fb_sync(struct fb_info * info,u32 frame)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(info->device, ddr_base + par->full_offset,
497 			 ddr_base + par->fb_offset, xdr_base + par->pan_offset,
498 			 par->width, par->height, par->ddr_line_length,
499 			 info->fix.line_length);
500 
501 out:
502 	return error;
503 }
504 
ps3fb_open(struct fb_info * info,int user)505 static int ps3fb_open(struct fb_info *info, int user)
506 {
507 	atomic_inc(&ps3fb.f_count);
508 	return 0;
509 }
510 
ps3fb_release(struct fb_info * info,int user)511 static int ps3fb_release(struct fb_info *info, int user)
512 {
513 	if (atomic_dec_and_test(&ps3fb.f_count)) {
514 		if (atomic_read(&ps3fb.ext_flip)) {
515 			atomic_set(&ps3fb.ext_flip, 0);
516 			if (console_trylock()) {
517 				ps3fb_sync(info, 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 
ps3fb_check_var(struct fb_var_screeninfo * var,struct fb_info * info)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, &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 
ps3fb_set_par(struct fb_info * info)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(&info->var, &ddr_line_length, &xdr_line_length);
612 	if (!mode)
613 		return -EINVAL;
614 
615 	vmode = ps3fb_native_vmode(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(info->device, 0, dst, 0, vmode->xres, l,
663 				 ddr_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 
ps3fb_setcolreg(unsigned int regno,unsigned int red,unsigned int green,unsigned int blue,unsigned int transp,struct fb_info * info)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 
ps3fb_pan_display(struct fb_var_screeninfo * var,struct fb_info * info)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 
ps3fb_mmap(struct fb_info * info,struct vm_area_struct * vma)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, info->fix.smem_start, 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 
ps3fb_blank(int blank,struct fb_info * info)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 
ps3fb_get_vblank(struct fb_vblank * vblank)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 
ps3fb_wait_for_vsync(u32 crtc)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 
ps3fb_ioctl(struct fb_info * info,unsigned int cmd,unsigned long arg)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);
790 			if (retval)
791 				break;
792 
793 			if (copy_to_user(argp, &vblank, 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(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(&val, argp, 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(val);
826 			if (vmode) {
827 				var = info->var;
828 				fb_videomode_to_var(&var, 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);
834 				if (!retval)
835 					fbcon_update_vcs(info, 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(argp, &val, 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(argp, &res, 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(&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(&ps3fb.ext_flip);
872 		retval = 0;
873 		break;
874 
875 	case PS3FB_IOCTL_FSEL:
876 		if (copy_from_user(&val, argp, sizeof(val)))
877 			break;
878 
879 		dev_dbg(info->device, "PS3FB_IOCTL_FSEL:%d\n", val);
880 		console_lock();
881 		retval = ps3fb_sync(info, val);
882 		console_unlock();
883 		break;
884 
885 	default:
886 		retval = -ENOIOCTLCMD;
887 		break;
888 	}
889 	return retval;
890 }
891 
ps3fbd(void * arg)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, 0);	/* single buffer */
904 			console_unlock();
905 		}
906 		schedule();
907 	}
908 	return 0;
909 }
910 
ps3fb_vsync_interrupt(int irq,void * ptr)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(&ps3fb.ext_flip)) {
930 			ps3fb.is_kicked = 1;
931 			wake_up_process(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 
ps3fb_probe(struct ps3_system_bus_device * dev)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(&ps3fb.f_count, -1);	/* fbcon opens ps3fb */
997 	atomic_set(&ps3fb.ext_flip, 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(lpar_driver_info, 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(ps3fb.irq_no, ps3fb_vsync_interrupt,
1082 			     0, DEVICE_NAME, &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(sizeof(struct ps3fb_par), &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(&info->cmap, 256, 0);
1151 	if (retval < 0)
1152 		goto err_framebuffer_release;
1153 
1154 	if (!fb_find_mode(&info->var, info, mode_option, ps3fb_modedb,
1155 			  ARRAY_SIZE(ps3fb_modedb),
1156 			  ps3fb_vmode(par->new_mode_id), 32)) {
1157 		retval = -EINVAL;
1158 		goto err_fb_dealloc;
1159 	}
1160 
1161 	fb_videomode_to_modelist(ps3fb_modedb, ARRAY_SIZE(ps3fb_modedb),
1162 				 &info->modelist);
1163 
1164 	retval = register_framebuffer(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(task)) {
1174 		retval = PTR_ERR(task);
1175 		goto err_unregister_framebuffer;
1176 	}
1177 
1178 	ps3fb.task = task;
1179 
1180 	return 0;
1181 
1182 err_unregister_framebuffer:
1183 	unregister_framebuffer(info);
1184 err_fb_dealloc:
1185 	fb_dealloc_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((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 
ps3fb_shutdown(struct ps3_system_bus_device * dev)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(&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(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(info);
1230 		fb_dealloc_cmap(&info->cmap);
1231 		framebuffer_release(info);
1232 		ps3_system_bus_set_drvdata(dev, NULL);
1233 	}
1234 	iounmap((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 
ps3fb_setup(void)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, &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 
ps3fb_init(void)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 
ps3fb_exit(void)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