ps3fb.c

   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 */
  61struct 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
  78struct 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
  92struct 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
 106struct 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};
 121static struct ps3fb_priv ps3fb;
 122
 123struct 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
 140static 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
 260static int ps3fb_mode;
 261module_param(ps3fb_mode, int, 0);
 262
 263static char *mode_option;
 264
 265static 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
 313static 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
 318static 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
 333static 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
 441static 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
 480static 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
 501out:
 502	return error;
 503}
 504
 505static int ps3fb_open(struct fb_info *info, int user)
 506{
 507	atomic_inc(&ps3fb.f_count);
 508	return 0;
 509}
 510
 511static 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
 533static 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
 603static 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
 676static 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
 693static 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
 707static 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
 726static 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
 750static 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
 757static 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
 777static 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
 892static 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
 911static 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
 940static 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
 956static 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
 963static 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
1182err_unregister_framebuffer:
1183	unregister_framebuffer(info);
1184err_fb_dealloc:
1185	fb_dealloc_cmap(&info->cmap);
1186err_framebuffer_release:
1187	framebuffer_release(info);
1188err_context_fb_close:
1189	lv1_gpu_fb_close(ps3fb.context_handle);
1190err_context_unmap:
1191	lv1_gpu_context_iomap(ps3fb.context_handle, GPU_IOIF, xdr_lpar,
1192			      ps3fb_videomemory.size, CBE_IOPTE_M);
1193err_free_irq:
1194	free_irq(ps3fb.irq_no, &dev->core);
1195err_destroy_plug:
1196	ps3_irq_plug_destroy(ps3fb.irq_no);
1197err_iounmap_dinfo:
1198	iounmap((u8 __force __iomem *)ps3fb.dinfo);
1199err_gpu_context_free:
1200	lv1_gpu_context_free(ps3fb.context_handle);
1201err_gpu_memory_free:
1202	lv1_gpu_memory_free(ps3fb.memory_handle);
1203err_close_device:
1204	ps3_close_hv_device(dev);
1205err:
1206	return retval;
1207}
1208
1209static 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
1244static 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
1254static 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
1283static 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
1291static 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
1298module_init(ps3fb_init);
1299module_exit(ps3fb_exit);
1300
1301MODULE_LICENSE("GPL");
1302MODULE_DESCRIPTION("PS3 GPU Frame Buffer Driver");
1303MODULE_AUTHOR("Sony Computer Entertainment Inc.");
1304MODULE_ALIAS(PS3_MODULE_ALIAS_GPU_FB);