linux/drivers/video/ps3fb.c
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   1/*
   2 *  linux/drivers/video/ps3fb.c -- PS3 GPU frame buffer device
   3 *
   4 *      Copyright (C) 2006 Sony Computer Entertainment Inc.
   5 *      Copyright 2006, 2007 Sony Corporation
   6 *
   7 *  This file is based on :
   8 *
   9 *  linux/drivers/video/vfb.c -- Virtual frame buffer device
  10 *
  11 *      Copyright (C) 2002 James Simmons
  12 *
  13 *      Copyright (C) 1997 Geert Uytterhoeven
  14 *
  15 *  This file is subject to the terms and conditions of the GNU General Public
  16 *  License. See the file COPYING in the main directory of this archive for
  17 *  more details.
  18 */
  19
  20#include <linux/module.h>
  21#include <linux/kernel.h>
  22#include <linux/errno.h>
  23#include <linux/string.h>
  24#include <linux/mm.h>
  25#include <linux/interrupt.h>
  26#include <linux/console.h>
  27#include <linux/ioctl.h>
  28#include <linux/kthread.h>
  29#include <linux/freezer.h>
  30#include <linux/uaccess.h>
  31#include <linux/fb.h>
  32#include <linux/init.h>
  33
  34#include <asm/cell-regs.h>
  35#include <asm/lv1call.h>
  36#include <asm/ps3av.h>
  37#include <asm/ps3fb.h>
  38#include <asm/ps3.h>
  39#include <asm/ps3gpu.h>
  40
  41
  42#define DEVICE_NAME             "ps3fb"
  43
  44#define GPU_CMD_BUF_SIZE                        (2 * 1024 * 1024)
  45#define GPU_FB_START                            (64 * 1024)
  46#define GPU_IOIF                                (0x0d000000UL)
  47#define GPU_ALIGN_UP(x)                         _ALIGN_UP((x), 64)
  48#define GPU_MAX_LINE_LENGTH                     (65536 - 64)
  49
  50#define GPU_INTR_STATUS_VSYNC_0                 0       /* vsync on head A */
  51#define GPU_INTR_STATUS_VSYNC_1                 1       /* vsync on head B */
  52#define GPU_INTR_STATUS_FLIP_0                  3       /* flip head A */
  53#define GPU_INTR_STATUS_FLIP_1                  4       /* flip head B */
  54#define GPU_INTR_STATUS_QUEUE_0                 5       /* queue head A */
  55#define GPU_INTR_STATUS_QUEUE_1                 6       /* queue head B */
  56
  57#define GPU_DRIVER_INFO_VERSION                 0x211
  58
  59/* gpu internals */
  60struct display_head {
  61        u64 be_time_stamp;
  62        u32 status;
  63        u32 offset;
  64        u32 res1;
  65        u32 res2;
  66        u32 field;
  67        u32 reserved1;
  68
  69        u64 res3;
  70        u32 raster;
  71
  72        u64 vblank_count;
  73        u32 field_vsync;
  74        u32 reserved2;
  75};
  76
  77struct gpu_irq {
  78        u32 irq_outlet;
  79        u32 status;
  80        u32 mask;
  81        u32 video_cause;
  82        u32 graph_cause;
  83        u32 user_cause;
  84
  85        u32 res1;
  86        u64 res2;
  87
  88        u32 reserved[4];
  89};
  90
  91struct gpu_driver_info {
  92        u32 version_driver;
  93        u32 version_gpu;
  94        u32 memory_size;
  95        u32 hardware_channel;
  96
  97        u32 nvcore_frequency;
  98        u32 memory_frequency;
  99
 100        u32 reserved[1063];
 101        struct display_head display_head[8];
 102        struct gpu_irq irq;
 103};
 104
 105struct ps3fb_priv {
 106        unsigned int irq_no;
 107
 108        u64 context_handle, memory_handle;
 109        struct gpu_driver_info *dinfo;
 110
 111        u64 vblank_count;       /* frame count */
 112        wait_queue_head_t wait_vsync;
 113
 114        atomic_t ext_flip;      /* on/off flip with vsync */
 115        atomic_t f_count;       /* fb_open count */
 116        int is_blanked;
 117        int is_kicked;
 118        struct task_struct *task;
 119};
 120static struct ps3fb_priv ps3fb;
 121
 122struct ps3fb_par {
 123        u32 pseudo_palette[16];
 124        int mode_id, new_mode_id;
 125        unsigned int num_frames;        /* num of frame buffers */
 126        unsigned int width;
 127        unsigned int height;
 128        unsigned int ddr_line_length;
 129        unsigned int ddr_frame_size;
 130        unsigned int xdr_frame_size;
 131        unsigned int full_offset;       /* start of fullscreen DDR fb */
 132        unsigned int fb_offset;         /* start of actual DDR fb */
 133        unsigned int pan_offset;
 134};
 135
 136
 137#define FIRST_NATIVE_MODE_INDEX 10
 138
 139static const struct fb_videomode ps3fb_modedb[] = {
 140    /* 60 Hz broadcast modes (modes "1" to "5") */
 141    {
 142        /* 480i */
 143        "480i", 60, 576, 384, 74074, 130, 89, 78, 57, 63, 6,
 144        FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
 145    },    {
 146        /* 480p */
 147        "480p", 60, 576, 384, 37037, 130, 89, 78, 57, 63, 6,
 148        FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 149    },    {
 150        /* 720p */
 151        "720p", 60, 1124, 644, 13481, 298, 148, 57, 44, 80, 5,
 152        FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 153    },    {
 154        /* 1080i */
 155        "1080i", 60, 1688, 964, 13481, 264, 160, 94, 62, 88, 5,
 156        FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
 157    },    {
 158        /* 1080p */
 159        "1080p", 60, 1688, 964, 6741, 264, 160, 94, 62, 88, 5,
 160        FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 161    },
 162
 163    /* 50 Hz broadcast modes (modes "6" to "10") */
 164    {
 165        /* 576i */
 166        "576i", 50, 576, 460, 74074, 142, 83, 97, 63, 63, 5,
 167        FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
 168    },    {
 169        /* 576p */
 170        "576p", 50, 576, 460, 37037, 142, 83, 97, 63, 63, 5,
 171        FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 172    },    {
 173        /* 720p */
 174        "720p", 50, 1124, 644, 13468, 298, 478, 57, 44, 80, 5,
 175        FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 176    },    {
 177        /* 1080i */
 178        "1080i", 50, 1688, 964, 13468, 264, 600, 94, 62, 88, 5,
 179        FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
 180    },    {
 181        /* 1080p */
 182        "1080p", 50, 1688, 964, 6734, 264, 600, 94, 62, 88, 5,
 183        FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 184    },
 185
 186    [FIRST_NATIVE_MODE_INDEX] =
 187    /* 60 Hz broadcast modes (full resolution versions of modes "1" to "5") */
 188    {
 189        /* 480if */
 190        "480if", 60, 720, 480, 74074, 58, 17, 30, 9, 63, 6,
 191        FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
 192    }, {
 193        /* 480pf */
 194        "480pf", 60, 720, 480, 37037, 58, 17, 30, 9, 63, 6,
 195        FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 196    }, {
 197        /* 720pf */
 198        "720pf", 60, 1280, 720, 13481, 220, 70, 19, 6, 80, 5,
 199        FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 200    }, {
 201        /* 1080if */
 202        "1080if", 60, 1920, 1080, 13481, 148, 44, 36, 4, 88, 5,
 203        FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
 204    }, {
 205        /* 1080pf */
 206        "1080pf", 60, 1920, 1080, 6741, 148, 44, 36, 4, 88, 5,
 207        FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 208    },
 209
 210    /* 50 Hz broadcast modes (full resolution versions of modes "6" to "10") */
 211    {
 212        /* 576if */
 213        "576if", 50, 720, 576, 74074, 70, 11, 39, 5, 63, 5,
 214        FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
 215    }, {
 216        /* 576pf */
 217        "576pf", 50, 720, 576, 37037, 70, 11, 39, 5, 63, 5,
 218        FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 219    }, {
 220        /* 720pf */
 221        "720pf", 50, 1280, 720, 13468, 220, 400, 19, 6, 80, 5,
 222        FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 223    }, {
 224        /* 1080if */
 225        "1080if", 50, 1920, 1080, 13468, 148, 484, 36, 4, 88, 5,
 226        FB_SYNC_BROADCAST, FB_VMODE_INTERLACED
 227    }, {
 228        /* 1080pf */
 229        "1080pf", 50, 1920, 1080, 6734, 148, 484, 36, 4, 88, 5,
 230        FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED
 231    },
 232
 233    /* VESA modes (modes "11" to "13") */
 234    {
 235        /* WXGA */
 236        "wxga", 60, 1280, 768, 12924, 160, 24, 29, 3, 136, 6,
 237        0, FB_VMODE_NONINTERLACED,
 238        FB_MODE_IS_VESA
 239    }, {
 240        /* SXGA */
 241        "sxga", 60, 1280, 1024, 9259, 248, 48, 38, 1, 112, 3,
 242        FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED,
 243        FB_MODE_IS_VESA
 244    }, {
 245        /* WUXGA */
 246        "wuxga", 60, 1920, 1200, 6494, 80, 48, 26, 3, 32, 6,
 247        FB_SYNC_HOR_HIGH_ACT, FB_VMODE_NONINTERLACED,
 248        FB_MODE_IS_VESA
 249    }
 250};
 251
 252
 253#define HEAD_A
 254#define HEAD_B
 255
 256#define BPP             4                       /* number of bytes per pixel */
 257
 258
 259static int ps3fb_mode;
 260module_param(ps3fb_mode, int, 0);
 261
 262static char *mode_option;
 263
 264static int ps3fb_cmp_mode(const struct fb_videomode *vmode,
 265                          const struct fb_var_screeninfo *var)
 266{
 267        long xres, yres, left_margin, right_margin, upper_margin, lower_margin;
 268        long dx, dy;
 269
 270        /* maximum values */
 271        if (var->xres > vmode->xres || var->yres > vmode->yres ||
 272            var->pixclock > vmode->pixclock ||
 273            var->hsync_len > vmode->hsync_len ||
 274            var->vsync_len > vmode->vsync_len)
 275                return -1;
 276
 277        /* progressive/interlaced must match */
 278        if ((var->vmode & FB_VMODE_MASK) != vmode->vmode)
 279                return -1;
 280
 281        /* minimum resolution */
 282        xres = max(var->xres, 1U);
 283        yres = max(var->yres, 1U);
 284
 285        /* minimum margins */
 286        left_margin = max(var->left_margin, vmode->left_margin);
 287        right_margin = max(var->right_margin, vmode->right_margin);
 288        upper_margin = max(var->upper_margin, vmode->upper_margin);
 289        lower_margin = max(var->lower_margin, vmode->lower_margin);
 290
 291        /* resolution + margins may not exceed native parameters */
 292        dx = ((long)vmode->left_margin + (long)vmode->xres +
 293              (long)vmode->right_margin) -
 294             (left_margin + xres + right_margin);
 295        if (dx < 0)
 296                return -1;
 297
 298        dy = ((long)vmode->upper_margin + (long)vmode->yres +
 299              (long)vmode->lower_margin) -
 300             (upper_margin + yres + lower_margin);
 301        if (dy < 0)
 302                return -1;
 303
 304        /* exact match */
 305        if (!dx && !dy)
 306                return 0;
 307
 308        /* resolution difference */
 309        return (vmode->xres - xres) * (vmode->yres - yres);
 310}
 311
 312static const struct fb_videomode *ps3fb_native_vmode(enum ps3av_mode_num id)
 313{
 314        return &ps3fb_modedb[FIRST_NATIVE_MODE_INDEX + id - 1];
 315}
 316
 317static const struct fb_videomode *ps3fb_vmode(int id)
 318{
 319        u32 mode = id & PS3AV_MODE_MASK;
 320
 321        if (mode < PS3AV_MODE_480I || mode > PS3AV_MODE_WUXGA)
 322                return NULL;
 323
 324        if (mode <= PS3AV_MODE_1080P50 && !(id & PS3AV_MODE_FULL)) {
 325                /* Non-fullscreen broadcast mode */
 326                return &ps3fb_modedb[mode - 1];
 327        }
 328
 329        return ps3fb_native_vmode(mode);
 330}
 331
 332static unsigned int ps3fb_find_mode(struct fb_var_screeninfo *var,
 333                                    u32 *ddr_line_length, u32 *xdr_line_length)
 334{
 335        unsigned int id, best_id;
 336        int diff, best_diff;
 337        const struct fb_videomode *vmode;
 338        long gap;
 339
 340        best_id = 0;
 341        best_diff = INT_MAX;
 342        pr_debug("%s: wanted %u [%u] %u x %u [%u] %u\n", __func__,
 343                 var->left_margin, var->xres, var->right_margin,
 344                 var->upper_margin, var->yres, var->lower_margin);
 345        for (id = PS3AV_MODE_480I; id <= PS3AV_MODE_WUXGA; id++) {
 346                vmode = ps3fb_native_vmode(id);
 347                diff = ps3fb_cmp_mode(vmode, var);
 348                pr_debug("%s: mode %u: %u [%u] %u x %u [%u] %u: diff = %d\n",
 349                         __func__, id, vmode->left_margin, vmode->xres,
 350                         vmode->right_margin, vmode->upper_margin,
 351                         vmode->yres, vmode->lower_margin, diff);
 352                if (diff < 0)
 353                        continue;
 354                if (diff < best_diff) {
 355                        best_id = id;
 356                        if (!diff)
 357                                break;
 358                        best_diff = diff;
 359                }
 360        }
 361
 362        if (!best_id) {
 363                pr_debug("%s: no suitable mode found\n", __func__);
 364                return 0;
 365        }
 366
 367        id = best_id;
 368        vmode = ps3fb_native_vmode(id);
 369
 370        *ddr_line_length = vmode->xres * BPP;
 371
 372        /* minimum resolution */
 373        if (!var->xres)
 374                var->xres = 1;
 375        if (!var->yres)
 376                var->yres = 1;
 377
 378        /* minimum virtual resolution */
 379        if (var->xres_virtual < var->xres)
 380                var->xres_virtual = var->xres;
 381        if (var->yres_virtual < var->yres)
 382                var->yres_virtual = var->yres;
 383
 384        /* minimum margins */
 385        if (var->left_margin < vmode->left_margin)
 386                var->left_margin = vmode->left_margin;
 387        if (var->right_margin < vmode->right_margin)
 388                var->right_margin = vmode->right_margin;
 389        if (var->upper_margin < vmode->upper_margin)
 390                var->upper_margin = vmode->upper_margin;
 391        if (var->lower_margin < vmode->lower_margin)
 392                var->lower_margin = vmode->lower_margin;
 393
 394        /* extra margins */
 395        gap = ((long)vmode->left_margin + (long)vmode->xres +
 396               (long)vmode->right_margin) -
 397              ((long)var->left_margin + (long)var->xres +
 398               (long)var->right_margin);
 399        if (gap > 0) {
 400                var->left_margin += gap/2;
 401                var->right_margin += (gap+1)/2;
 402                pr_debug("%s: rounded up H to %u [%u] %u\n", __func__,
 403                         var->left_margin, var->xres, var->right_margin);
 404        }
 405
 406        gap = ((long)vmode->upper_margin + (long)vmode->yres +
 407               (long)vmode->lower_margin) -
 408              ((long)var->upper_margin + (long)var->yres +
 409               (long)var->lower_margin);
 410        if (gap > 0) {
 411                var->upper_margin += gap/2;
 412                var->lower_margin += (gap+1)/2;
 413                pr_debug("%s: rounded up V to %u [%u] %u\n", __func__,
 414                         var->upper_margin, var->yres, var->lower_margin);
 415        }
 416
 417        /* fixed fields */
 418        var->pixclock = vmode->pixclock;
 419        var->hsync_len = vmode->hsync_len;
 420        var->vsync_len = vmode->vsync_len;
 421        var->sync = vmode->sync;
 422
 423        if (ps3_compare_firmware_version(1, 9, 0) >= 0) {
 424                *xdr_line_length = GPU_ALIGN_UP(var->xres_virtual * BPP);
 425                if (*xdr_line_length > GPU_MAX_LINE_LENGTH)
 426                        *xdr_line_length = GPU_MAX_LINE_LENGTH;
 427        } else
 428                *xdr_line_length = *ddr_line_length;
 429
 430        if (vmode->sync & FB_SYNC_BROADCAST) {
 431                /* Full broadcast modes have the full mode bit set */
 432                if (vmode->xres == var->xres && vmode->yres == var->yres)
 433                        id |= PS3AV_MODE_FULL;
 434        }
 435
 436        pr_debug("%s: mode %u\n", __func__, id);
 437        return id;
 438}
 439
 440static void ps3fb_sync_image(struct device *dev, u64 frame_offset,
 441                             u64 dst_offset, u64 src_offset, u32 width,
 442                             u32 height, u32 dst_line_length,
 443                             u32 src_line_length)
 444{
 445        int status;
 446        u64 line_length;
 447
 448        line_length = dst_line_length;
 449        if (src_line_length != dst_line_length)
 450                line_length |= (u64)src_line_length << 32;
 451
 452        src_offset += GPU_FB_START;
 453
 454        mutex_lock(&ps3_gpu_mutex);
 455        status = lv1_gpu_fb_blit(ps3fb.context_handle, dst_offset,
 456                                 GPU_IOIF + src_offset,
 457                                 L1GPU_FB_BLIT_WAIT_FOR_COMPLETION |
 458                                 (width << 16) | height,
 459                                 line_length);
 460        mutex_unlock(&ps3_gpu_mutex);
 461
 462        if (status)
 463                dev_err(dev, "%s: lv1_gpu_fb_blit failed: %d\n", __func__,
 464                        status);
 465#ifdef HEAD_A
 466        status = lv1_gpu_display_flip(ps3fb.context_handle, 0, frame_offset);
 467        if (status)
 468                dev_err(dev, "%s: lv1_gpu_display_flip failed: %d\n", __func__,
 469                        status);
 470#endif
 471#ifdef HEAD_B
 472        status = lv1_gpu_display_flip(ps3fb.context_handle, 1, frame_offset);
 473        if (status)
 474                dev_err(dev, "%s: lv1_gpu_display_flip failed: %d\n", __func__,
 475                        status);
 476#endif
 477}
 478
 479static int ps3fb_sync(struct fb_info *info, u32 frame)
 480{
 481        struct ps3fb_par *par = info->par;
 482        int error = 0;
 483        u64 ddr_base, xdr_base;
 484
 485        if (frame > par->num_frames - 1) {
 486                dev_dbg(info->device, "%s: invalid frame number (%u)\n",
 487                        __func__, frame);
 488                error = -EINVAL;
 489                goto out;
 490        }
 491
 492        xdr_base = frame * par->xdr_frame_size;
 493        ddr_base = frame * par->ddr_frame_size;
 494
 495        ps3fb_sync_image(info->device, ddr_base + par->full_offset,
 496                         ddr_base + par->fb_offset, xdr_base + par->pan_offset,
 497                         par->width, par->height, par->ddr_line_length,
 498                         info->fix.line_length);
 499
 500out:
 501        return error;
 502}
 503
 504static int ps3fb_open(struct fb_info *info, int user)
 505{
 506        atomic_inc(&ps3fb.f_count);
 507        return 0;
 508}
 509
 510static int ps3fb_release(struct fb_info *info, int user)
 511{
 512        if (atomic_dec_and_test(&ps3fb.f_count)) {
 513                if (atomic_read(&ps3fb.ext_flip)) {
 514                        atomic_set(&ps3fb.ext_flip, 0);
 515                        if (console_trylock()) {
 516                                ps3fb_sync(info, 0);    /* single buffer */
 517                                console_unlock();
 518                        }
 519                }
 520        }
 521        return 0;
 522}
 523
 524    /*
 525     *  Setting the video mode has been split into two parts.
 526     *  First part, xxxfb_check_var, must not write anything
 527     *  to hardware, it should only verify and adjust var.
 528     *  This means it doesn't alter par but it does use hardware
 529     *  data from it to check this var.
 530     */
 531
 532static int ps3fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
 533{
 534        u32 xdr_line_length, ddr_line_length;
 535        int mode;
 536
 537        mode = ps3fb_find_mode(var, &ddr_line_length, &xdr_line_length);
 538        if (!mode)
 539                return -EINVAL;
 540
 541        /* Virtual screen */
 542        if (var->xres_virtual > xdr_line_length / BPP) {
 543                dev_dbg(info->device,
 544                        "Horizontal virtual screen size too large\n");
 545                return -EINVAL;
 546        }
 547
 548        if (var->xoffset + var->xres > var->xres_virtual ||
 549            var->yoffset + var->yres > var->yres_virtual) {
 550                dev_dbg(info->device, "panning out-of-range\n");
 551                return -EINVAL;
 552        }
 553
 554        /* We support ARGB8888 only */
 555        if (var->bits_per_pixel > 32 || var->grayscale ||
 556            var->red.offset > 16 || var->green.offset > 8 ||
 557            var->blue.offset > 0 || var->transp.offset > 24 ||
 558            var->red.length > 8 || var->green.length > 8 ||
 559            var->blue.length > 8 || var->transp.length > 8 ||
 560            var->red.msb_right || var->green.msb_right ||
 561            var->blue.msb_right || var->transp.msb_right || var->nonstd) {
 562                dev_dbg(info->device, "We support ARGB8888 only\n");
 563                return -EINVAL;
 564        }
 565
 566        var->bits_per_pixel = 32;
 567        var->red.offset = 16;
 568        var->green.offset = 8;
 569        var->blue.offset = 0;
 570        var->transp.offset = 24;
 571        var->red.length = 8;
 572        var->green.length = 8;
 573        var->blue.length = 8;
 574        var->transp.length = 8;
 575        var->red.msb_right = 0;
 576        var->green.msb_right = 0;
 577        var->blue.msb_right = 0;
 578        var->transp.msb_right = 0;
 579
 580        /* Rotation is not supported */
 581        if (var->rotate) {
 582                dev_dbg(info->device, "Rotation is not supported\n");
 583                return -EINVAL;
 584        }
 585
 586        /* Memory limit */
 587        if (var->yres_virtual * xdr_line_length > info->fix.smem_len) {
 588                dev_dbg(info->device, "Not enough memory\n");
 589                return -ENOMEM;
 590        }
 591
 592        var->height = -1;
 593        var->width = -1;
 594
 595        return 0;
 596}
 597
 598    /*
 599     * This routine actually sets the video mode.
 600     */
 601
 602static int ps3fb_set_par(struct fb_info *info)
 603{
 604        struct ps3fb_par *par = info->par;
 605        unsigned int mode, ddr_line_length, xdr_line_length, lines, maxlines;
 606        unsigned int ddr_xoff, ddr_yoff, offset;
 607        const struct fb_videomode *vmode;
 608        u64 dst;
 609
 610        mode = ps3fb_find_mode(&info->var, &ddr_line_length, &xdr_line_length);
 611        if (!mode)
 612                return -EINVAL;
 613
 614        vmode = ps3fb_native_vmode(mode & PS3AV_MODE_MASK);
 615
 616        info->fix.xpanstep = info->var.xres_virtual > info->var.xres ? 1 : 0;
 617        info->fix.ypanstep = info->var.yres_virtual > info->var.yres ? 1 : 0;
 618        info->fix.line_length = xdr_line_length;
 619
 620        par->ddr_line_length = ddr_line_length;
 621        par->ddr_frame_size = vmode->yres * ddr_line_length;
 622        par->xdr_frame_size = info->var.yres_virtual * xdr_line_length;
 623
 624        par->num_frames = info->fix.smem_len /
 625                          max(par->ddr_frame_size, par->xdr_frame_size);
 626
 627        /* Keep the special bits we cannot set using fb_var_screeninfo */
 628        par->new_mode_id = (par->new_mode_id & ~PS3AV_MODE_MASK) | mode;
 629
 630        par->width = info->var.xres;
 631        par->height = info->var.yres;
 632
 633        /* Start of the virtual frame buffer (relative to fullscreen) */
 634        ddr_xoff = info->var.left_margin - vmode->left_margin;
 635        ddr_yoff = info->var.upper_margin - vmode->upper_margin;
 636        offset = ddr_yoff * ddr_line_length + ddr_xoff * BPP;
 637
 638        par->fb_offset = GPU_ALIGN_UP(offset);
 639        par->full_offset = par->fb_offset - offset;
 640        par->pan_offset = info->var.yoffset * xdr_line_length +
 641                          info->var.xoffset * BPP;
 642
 643        if (par->new_mode_id != par->mode_id) {
 644                if (ps3av_set_video_mode(par->new_mode_id)) {
 645                        par->new_mode_id = par->mode_id;
 646                        return -EINVAL;
 647                }
 648                par->mode_id = par->new_mode_id;
 649        }
 650
 651        /* Clear XDR frame buffer memory */
 652        memset((void __force *)info->screen_base, 0, info->fix.smem_len);
 653
 654        /* Clear DDR frame buffer memory */
 655        lines = vmode->yres * par->num_frames;
 656        if (par->full_offset)
 657                lines++;
 658        maxlines = info->fix.smem_len / ddr_line_length;
 659        for (dst = 0; lines; dst += maxlines * ddr_line_length) {
 660                unsigned int l = min(lines, maxlines);
 661                ps3fb_sync_image(info->device, 0, dst, 0, vmode->xres, l,
 662                                 ddr_line_length, ddr_line_length);
 663                lines -= l;
 664        }
 665
 666        return 0;
 667}
 668
 669    /*
 670     *  Set a single color register. The values supplied are already
 671     *  rounded down to the hardware's capabilities (according to the
 672     *  entries in the var structure). Return != 0 for invalid regno.
 673     */
 674
 675static int ps3fb_setcolreg(unsigned int regno, unsigned int red,
 676                           unsigned int green, unsigned int blue,
 677                           unsigned int transp, struct fb_info *info)
 678{
 679        if (regno >= 16)
 680                return 1;
 681
 682        red >>= 8;
 683        green >>= 8;
 684        blue >>= 8;
 685        transp >>= 8;
 686
 687        ((u32 *)info->pseudo_palette)[regno] = transp << 24 | red << 16 |
 688                                               green << 8 | blue;
 689        return 0;
 690}
 691
 692static int ps3fb_pan_display(struct fb_var_screeninfo *var,
 693                             struct fb_info *info)
 694{
 695        struct ps3fb_par *par = info->par;
 696
 697        par->pan_offset = var->yoffset * info->fix.line_length +
 698                          var->xoffset * BPP;
 699        return 0;
 700}
 701
 702    /*
 703     *  As we have a virtual frame buffer, we need our own mmap function
 704     */
 705
 706static int ps3fb_mmap(struct fb_info *info, struct vm_area_struct *vma)
 707{
 708        unsigned long size, offset;
 709
 710        size = vma->vm_end - vma->vm_start;
 711        offset = vma->vm_pgoff << PAGE_SHIFT;
 712        if (offset + size > info->fix.smem_len)
 713                return -EINVAL;
 714
 715        offset += info->fix.smem_start;
 716        if (remap_pfn_range(vma, vma->vm_start, offset >> PAGE_SHIFT,
 717                            size, vma->vm_page_prot))
 718                return -EAGAIN;
 719
 720        dev_dbg(info->device, "ps3fb: mmap framebuffer P(%lx)->V(%lx)\n",
 721                offset, vma->vm_start);
 722        return 0;
 723}
 724
 725    /*
 726     * Blank the display
 727     */
 728
 729static int ps3fb_blank(int blank, struct fb_info *info)
 730{
 731        int retval;
 732
 733        dev_dbg(info->device, "%s: blank:%d\n", __func__, blank);
 734        switch (blank) {
 735        case FB_BLANK_POWERDOWN:
 736        case FB_BLANK_HSYNC_SUSPEND:
 737        case FB_BLANK_VSYNC_SUSPEND:
 738        case FB_BLANK_NORMAL:
 739                retval = ps3av_video_mute(1);   /* mute on */
 740                if (!retval)
 741                        ps3fb.is_blanked = 1;
 742                break;
 743
 744        default:                /* unblank */
 745                retval = ps3av_video_mute(0);   /* mute off */
 746                if (!retval)
 747                        ps3fb.is_blanked = 0;
 748                break;
 749        }
 750        return retval;
 751}
 752
 753static int ps3fb_get_vblank(struct fb_vblank *vblank)
 754{
 755        memset(vblank, 0, sizeof(*vblank));
 756        vblank->flags = FB_VBLANK_HAVE_VSYNC;
 757        return 0;
 758}
 759
 760static int ps3fb_wait_for_vsync(u32 crtc)
 761{
 762        int ret;
 763        u64 count;
 764
 765        count = ps3fb.vblank_count;
 766        ret = wait_event_interruptible_timeout(ps3fb.wait_vsync,
 767                                               count != ps3fb.vblank_count,
 768                                               HZ / 10);
 769        if (!ret)
 770                return -ETIMEDOUT;
 771
 772        return 0;
 773}
 774
 775
 776    /*
 777     * ioctl
 778     */
 779
 780static int ps3fb_ioctl(struct fb_info *info, unsigned int cmd,
 781                       unsigned long arg)
 782{
 783        void __user *argp = (void __user *)arg;
 784        u32 val;
 785        int retval = -EFAULT;
 786
 787        switch (cmd) {
 788        case FBIOGET_VBLANK:
 789                {
 790                        struct fb_vblank vblank;
 791                        dev_dbg(info->device, "FBIOGET_VBLANK:\n");
 792                        retval = ps3fb_get_vblank(&vblank);
 793                        if (retval)
 794                                break;
 795
 796                        if (copy_to_user(argp, &vblank, sizeof(vblank)))
 797                                retval = -EFAULT;
 798                        break;
 799                }
 800
 801        case FBIO_WAITFORVSYNC:
 802                {
 803                        u32 crt;
 804                        dev_dbg(info->device, "FBIO_WAITFORVSYNC:\n");
 805                        if (get_user(crt, (u32 __user *) arg))
 806                                break;
 807
 808                        retval = ps3fb_wait_for_vsync(crt);
 809                        break;
 810                }
 811
 812        case PS3FB_IOCTL_SETMODE:
 813                {
 814                        struct ps3fb_par *par = info->par;
 815                        const struct fb_videomode *vmode;
 816                        struct fb_var_screeninfo var;
 817
 818                        if (copy_from_user(&val, argp, sizeof(val)))
 819                                break;
 820
 821                        if (!(val & PS3AV_MODE_MASK)) {
 822                                u32 id = ps3av_get_auto_mode();
 823                                if (id > 0)
 824                                        val = (val & ~PS3AV_MODE_MASK) | id;
 825                        }
 826                        dev_dbg(info->device, "PS3FB_IOCTL_SETMODE:%x\n", val);
 827                        retval = -EINVAL;
 828                        vmode = ps3fb_vmode(val);
 829                        if (vmode) {
 830                                var = info->var;
 831                                fb_videomode_to_var(&var, vmode);
 832                                console_lock();
 833                                info->flags |= FBINFO_MISC_USEREVENT;
 834                                /* Force, in case only special bits changed */
 835                                var.activate |= FB_ACTIVATE_FORCE;
 836                                par->new_mode_id = val;
 837                                retval = fb_set_var(info, &var);
 838                                info->flags &= ~FBINFO_MISC_USEREVENT;
 839                                console_unlock();
 840                        }
 841                        break;
 842                }
 843
 844        case PS3FB_IOCTL_GETMODE:
 845                val = ps3av_get_mode();
 846                dev_dbg(info->device, "PS3FB_IOCTL_GETMODE:%x\n", val);
 847                if (!copy_to_user(argp, &val, sizeof(val)))
 848                        retval = 0;
 849                break;
 850
 851        case PS3FB_IOCTL_SCREENINFO:
 852                {
 853                        struct ps3fb_par *par = info->par;
 854                        struct ps3fb_ioctl_res res;
 855                        dev_dbg(info->device, "PS3FB_IOCTL_SCREENINFO:\n");
 856                        res.xres = info->fix.line_length / BPP;
 857                        res.yres = info->var.yres_virtual;
 858                        res.xoff = (res.xres - info->var.xres) / 2;
 859                        res.yoff = (res.yres - info->var.yres) / 2;
 860                        res.num_frames = par->num_frames;
 861                        if (!copy_to_user(argp, &res, sizeof(res)))
 862                                retval = 0;
 863                        break;
 864                }
 865
 866        case PS3FB_IOCTL_ON:
 867                dev_dbg(info->device, "PS3FB_IOCTL_ON:\n");
 868                atomic_inc(&ps3fb.ext_flip);
 869                retval = 0;
 870                break;
 871
 872        case PS3FB_IOCTL_OFF:
 873                dev_dbg(info->device, "PS3FB_IOCTL_OFF:\n");
 874                atomic_dec_if_positive(&ps3fb.ext_flip);
 875                retval = 0;
 876                break;
 877
 878        case PS3FB_IOCTL_FSEL:
 879                if (copy_from_user(&val, argp, sizeof(val)))
 880                        break;
 881
 882                dev_dbg(info->device, "PS3FB_IOCTL_FSEL:%d\n", val);
 883                console_lock();
 884                retval = ps3fb_sync(info, val);
 885                console_unlock();
 886                break;
 887
 888        default:
 889                retval = -ENOIOCTLCMD;
 890                break;
 891        }
 892        return retval;
 893}
 894
 895static int ps3fbd(void *arg)
 896{
 897        struct fb_info *info = arg;
 898
 899        set_freezable();
 900        while (!kthread_should_stop()) {
 901                try_to_freeze();
 902                set_current_state(TASK_INTERRUPTIBLE);
 903                if (ps3fb.is_kicked) {
 904                        ps3fb.is_kicked = 0;
 905                        console_lock();
 906                        ps3fb_sync(info, 0);    /* single buffer */
 907                        console_unlock();
 908                }
 909                schedule();
 910        }
 911        return 0;
 912}
 913
 914static irqreturn_t ps3fb_vsync_interrupt(int irq, void *ptr)
 915{
 916        struct device *dev = ptr;
 917        u64 v1;
 918        int status;
 919        struct display_head *head = &ps3fb.dinfo->display_head[1];
 920
 921        status = lv1_gpu_context_intr(ps3fb.context_handle, &v1);
 922        if (status) {
 923                dev_err(dev, "%s: lv1_gpu_context_intr failed: %d\n", __func__,
 924                        status);
 925                return IRQ_NONE;
 926        }
 927
 928        if (v1 & (1 << GPU_INTR_STATUS_VSYNC_1)) {
 929                /* VSYNC */
 930                ps3fb.vblank_count = head->vblank_count;
 931                if (ps3fb.task && !ps3fb.is_blanked &&
 932                    !atomic_read(&ps3fb.ext_flip)) {
 933                        ps3fb.is_kicked = 1;
 934                        wake_up_process(ps3fb.task);
 935                }
 936                wake_up_interruptible(&ps3fb.wait_vsync);
 937        }
 938
 939        return IRQ_HANDLED;
 940}
 941
 942
 943static struct fb_ops ps3fb_ops = {
 944        .fb_open        = ps3fb_open,
 945        .fb_release     = ps3fb_release,
 946        .fb_read        = fb_sys_read,
 947        .fb_write       = fb_sys_write,
 948        .fb_check_var   = ps3fb_check_var,
 949        .fb_set_par     = ps3fb_set_par,
 950        .fb_setcolreg   = ps3fb_setcolreg,
 951        .fb_pan_display = ps3fb_pan_display,
 952        .fb_fillrect    = sys_fillrect,
 953        .fb_copyarea    = sys_copyarea,
 954        .fb_imageblit   = sys_imageblit,
 955        .fb_mmap        = ps3fb_mmap,
 956        .fb_blank       = ps3fb_blank,
 957        .fb_ioctl       = ps3fb_ioctl,
 958        .fb_compat_ioctl = ps3fb_ioctl
 959};
 960
 961static struct fb_fix_screeninfo ps3fb_fix __initdata = {
 962        .id =           DEVICE_NAME,
 963        .type =         FB_TYPE_PACKED_PIXELS,
 964        .visual =       FB_VISUAL_TRUECOLOR,
 965        .accel =        FB_ACCEL_NONE,
 966};
 967
 968static int ps3fb_probe(struct ps3_system_bus_device *dev)
 969{
 970        struct fb_info *info;
 971        struct ps3fb_par *par;
 972        int retval;
 973        u64 ddr_lpar = 0;
 974        u64 lpar_dma_control = 0;
 975        u64 lpar_driver_info = 0;
 976        u64 lpar_reports = 0;
 977        u64 lpar_reports_size = 0;
 978        u64 xdr_lpar;
 979        struct gpu_driver_info *dinfo;
 980        void *fb_start;
 981        int status;
 982        struct task_struct *task;
 983        unsigned long max_ps3fb_size;
 984
 985        if (ps3fb_videomemory.size < GPU_CMD_BUF_SIZE) {
 986                dev_err(&dev->core, "%s: Not enough video memory\n", __func__);
 987                return -ENOMEM;
 988        }
 989
 990        retval = ps3_open_hv_device(dev);
 991        if (retval) {
 992                dev_err(&dev->core, "%s: ps3_open_hv_device failed\n",
 993                        __func__);
 994                goto err;
 995        }
 996
 997        if (!ps3fb_mode)
 998                ps3fb_mode = ps3av_get_mode();
 999        dev_dbg(&dev->core, "ps3fb_mode: %d\n", ps3fb_mode);
1000
1001        atomic_set(&ps3fb.f_count, -1); /* fbcon opens ps3fb */
1002        atomic_set(&ps3fb.ext_flip, 0); /* for flip with vsync */
1003        init_waitqueue_head(&ps3fb.wait_vsync);
1004
1005#ifdef HEAD_A
1006        status = lv1_gpu_display_sync(0x0, 0, L1GPU_DISPLAY_SYNC_VSYNC);
1007        if (status) {
1008                dev_err(&dev->core, "%s: lv1_gpu_display_sync failed: %d\n",
1009                        __func__, status);
1010                retval = -ENODEV;
1011                goto err_close_device;
1012        }
1013#endif
1014#ifdef HEAD_B
1015        status = lv1_gpu_display_sync(0x0, 1, L1GPU_DISPLAY_SYNC_VSYNC);
1016        if (status) {
1017                dev_err(&dev->core, "%s: lv1_gpu_display_sync failed: %d\n",
1018                        __func__, status);
1019                retval = -ENODEV;
1020                goto err_close_device;
1021        }
1022#endif
1023
1024        max_ps3fb_size = _ALIGN_UP(GPU_IOIF, 256*1024*1024) - GPU_IOIF;
1025        if (ps3fb_videomemory.size > max_ps3fb_size) {
1026                dev_info(&dev->core, "Limiting ps3fb mem size to %lu bytes\n",
1027                         max_ps3fb_size);
1028                ps3fb_videomemory.size = max_ps3fb_size;
1029        }
1030
1031        /* get gpu context handle */
1032        status = lv1_gpu_memory_allocate(ps3fb_videomemory.size, 0, 0, 0, 0,
1033                                         &ps3fb.memory_handle, &ddr_lpar);
1034        if (status) {
1035                dev_err(&dev->core, "%s: lv1_gpu_memory_allocate failed: %d\n",
1036                        __func__, status);
1037                retval = -ENOMEM;
1038                goto err_close_device;
1039        }
1040        dev_dbg(&dev->core, "ddr:lpar:0x%llx\n", ddr_lpar);
1041
1042        status = lv1_gpu_context_allocate(ps3fb.memory_handle, 0,
1043                                          &ps3fb.context_handle,
1044                                          &lpar_dma_control, &lpar_driver_info,
1045                                          &lpar_reports, &lpar_reports_size);
1046        if (status) {
1047                dev_err(&dev->core,
1048                        "%s: lv1_gpu_context_allocate failed: %d\n", __func__,
1049                        status);
1050                retval = -ENOMEM;
1051                goto err_gpu_memory_free;
1052        }
1053
1054        /* vsync interrupt */
1055        dinfo = (void __force *)ioremap(lpar_driver_info, 128 * 1024);
1056        if (!dinfo) {
1057                dev_err(&dev->core, "%s: ioremap failed\n", __func__);
1058                retval = -ENOMEM;
1059                goto err_gpu_context_free;
1060        }
1061
1062        ps3fb.dinfo = dinfo;
1063        dev_dbg(&dev->core, "version_driver:%x\n", dinfo->version_driver);
1064        dev_dbg(&dev->core, "irq outlet:%x\n", dinfo->irq.irq_outlet);
1065        dev_dbg(&dev->core, "version_gpu: %x memory_size: %x ch: %x "
1066                "core_freq: %d mem_freq:%d\n", dinfo->version_gpu,
1067                dinfo->memory_size, dinfo->hardware_channel,
1068                dinfo->nvcore_frequency/1000000,
1069                dinfo->memory_frequency/1000000);
1070
1071        if (dinfo->version_driver != GPU_DRIVER_INFO_VERSION) {
1072                dev_err(&dev->core, "%s: version_driver err:%x\n", __func__,
1073                        dinfo->version_driver);
1074                retval = -EINVAL;
1075                goto err_iounmap_dinfo;
1076        }
1077
1078        retval = ps3_irq_plug_setup(PS3_BINDING_CPU_ANY, dinfo->irq.irq_outlet,
1079                                    &ps3fb.irq_no);
1080        if (retval) {
1081                dev_err(&dev->core, "%s: ps3_alloc_irq failed %d\n", __func__,
1082                        retval);
1083                goto err_iounmap_dinfo;
1084        }
1085
1086        retval = request_irq(ps3fb.irq_no, ps3fb_vsync_interrupt,
1087                             0, DEVICE_NAME, &dev->core);
1088        if (retval) {
1089                dev_err(&dev->core, "%s: request_irq failed %d\n", __func__,
1090                        retval);
1091                goto err_destroy_plug;
1092        }
1093
1094        dinfo->irq.mask = (1 << GPU_INTR_STATUS_VSYNC_1) |
1095                          (1 << GPU_INTR_STATUS_FLIP_1);
1096
1097        /* Clear memory to prevent kernel info leakage into userspace */
1098        memset(ps3fb_videomemory.address, 0, ps3fb_videomemory.size);
1099
1100        xdr_lpar = ps3_mm_phys_to_lpar(__pa(ps3fb_videomemory.address));
1101
1102        status = lv1_gpu_context_iomap(ps3fb.context_handle, GPU_IOIF,
1103                                       xdr_lpar, ps3fb_videomemory.size,
1104                                       CBE_IOPTE_PP_W | CBE_IOPTE_PP_R |
1105                                       CBE_IOPTE_M);
1106        if (status) {
1107                dev_err(&dev->core, "%s: lv1_gpu_context_iomap failed: %d\n",
1108                        __func__, status);
1109                retval =  -ENXIO;
1110                goto err_free_irq;
1111        }
1112
1113        dev_dbg(&dev->core, "video:%p ioif:%lx lpar:%llx size:%lx\n",
1114                ps3fb_videomemory.address, GPU_IOIF, xdr_lpar,
1115                ps3fb_videomemory.size);
1116
1117        status = lv1_gpu_fb_setup(ps3fb.context_handle, xdr_lpar,
1118                                  GPU_CMD_BUF_SIZE, GPU_IOIF);
1119        if (status) {
1120                dev_err(&dev->core, "%s: lv1_gpu_fb_setup failed: %d\n",
1121                        __func__, status);
1122                retval = -ENXIO;
1123                goto err_context_unmap;
1124        }
1125
1126        info = framebuffer_alloc(sizeof(struct ps3fb_par), &dev->core);
1127        if (!info) {
1128                retval = -ENOMEM;
1129                goto err_context_fb_close;
1130        }
1131
1132        par = info->par;
1133        par->mode_id = ~ps3fb_mode;     /* != ps3fb_mode, to trigger change */
1134        par->new_mode_id = ps3fb_mode;
1135        par->num_frames = 1;
1136
1137        info->fbops = &ps3fb_ops;
1138        info->fix = ps3fb_fix;
1139
1140        /*
1141         * The GPU command buffer is at the start of video memory
1142         * As we don't use the full command buffer, we can put the actual
1143         * frame buffer at offset GPU_FB_START and save some precious XDR
1144         * memory
1145         */
1146        fb_start = ps3fb_videomemory.address + GPU_FB_START;
1147        info->screen_base = (char __force __iomem *)fb_start;
1148        info->fix.smem_start = __pa(fb_start);
1149        info->fix.smem_len = ps3fb_videomemory.size - GPU_FB_START;
1150
1151        info->pseudo_palette = par->pseudo_palette;
1152        info->flags = FBINFO_DEFAULT | FBINFO_READS_FAST |
1153                      FBINFO_HWACCEL_XPAN | FBINFO_HWACCEL_YPAN;
1154
1155        retval = fb_alloc_cmap(&info->cmap, 256, 0);
1156        if (retval < 0)
1157                goto err_framebuffer_release;
1158
1159        if (!fb_find_mode(&info->var, info, mode_option, ps3fb_modedb,
1160                          ARRAY_SIZE(ps3fb_modedb),
1161                          ps3fb_vmode(par->new_mode_id), 32)) {
1162                retval = -EINVAL;
1163                goto err_fb_dealloc;
1164        }
1165
1166        fb_videomode_to_modelist(ps3fb_modedb, ARRAY_SIZE(ps3fb_modedb),
1167                                 &info->modelist);
1168
1169        retval = register_framebuffer(info);
1170        if (retval < 0)
1171                goto err_fb_dealloc;
1172
1173        ps3_system_bus_set_drvdata(dev, info);
1174
1175        dev_info(info->device, "%s %s, using %u KiB of video memory\n",
1176                 dev_driver_string(info->dev), dev_name(info->dev),
1177                 info->fix.smem_len >> 10);
1178
1179        task = kthread_run(ps3fbd, info, DEVICE_NAME);
1180        if (IS_ERR(task)) {
1181                retval = PTR_ERR(task);
1182                goto err_unregister_framebuffer;
1183        }
1184
1185        ps3fb.task = task;
1186
1187        return 0;
1188
1189err_unregister_framebuffer:
1190        unregister_framebuffer(info);
1191err_fb_dealloc:
1192        fb_dealloc_cmap(&info->cmap);
1193err_framebuffer_release:
1194        framebuffer_release(info);
1195err_context_fb_close:
1196        lv1_gpu_fb_close(ps3fb.context_handle);
1197err_context_unmap:
1198        lv1_gpu_context_iomap(ps3fb.context_handle, GPU_IOIF, xdr_lpar,
1199                              ps3fb_videomemory.size, CBE_IOPTE_M);
1200err_free_irq:
1201        free_irq(ps3fb.irq_no, &dev->core);
1202err_destroy_plug:
1203        ps3_irq_plug_destroy(ps3fb.irq_no);
1204err_iounmap_dinfo:
1205        iounmap((u8 __force __iomem *)ps3fb.dinfo);
1206err_gpu_context_free:
1207        lv1_gpu_context_free(ps3fb.context_handle);
1208err_gpu_memory_free:
1209        lv1_gpu_memory_free(ps3fb.memory_handle);
1210err_close_device:
1211        ps3_close_hv_device(dev);
1212err:
1213        return retval;
1214}
1215
1216static int ps3fb_shutdown(struct ps3_system_bus_device *dev)
1217{
1218        struct fb_info *info = ps3_system_bus_get_drvdata(dev);
1219        u64 xdr_lpar = ps3_mm_phys_to_lpar(__pa(ps3fb_videomemory.address));
1220
1221        dev_dbg(&dev->core, " -> %s:%d\n", __func__, __LINE__);
1222
1223        atomic_inc(&ps3fb.ext_flip);    /* flip off */
1224        ps3fb.dinfo->irq.mask = 0;
1225
1226        if (ps3fb.task) {
1227                struct task_struct *task = ps3fb.task;
1228                ps3fb.task = NULL;
1229                kthread_stop(task);
1230        }
1231        if (ps3fb.irq_no) {
1232                free_irq(ps3fb.irq_no, &dev->core);
1233                ps3_irq_plug_destroy(ps3fb.irq_no);
1234        }
1235        if (info) {
1236                unregister_framebuffer(info);
1237                fb_dealloc_cmap(&info->cmap);
1238                framebuffer_release(info);
1239                ps3_system_bus_set_drvdata(dev, NULL);
1240        }
1241        iounmap((u8 __force __iomem *)ps3fb.dinfo);
1242        lv1_gpu_fb_close(ps3fb.context_handle);
1243        lv1_gpu_context_iomap(ps3fb.context_handle, GPU_IOIF, xdr_lpar,
1244                              ps3fb_videomemory.size, CBE_IOPTE_M);
1245        lv1_gpu_context_free(ps3fb.context_handle);
1246        lv1_gpu_memory_free(ps3fb.memory_handle);
1247        ps3_close_hv_device(dev);
1248        dev_dbg(&dev->core, " <- %s:%d\n", __func__, __LINE__);
1249
1250        return 0;
1251}
1252
1253static struct ps3_system_bus_driver ps3fb_driver = {
1254        .match_id       = PS3_MATCH_ID_GPU,
1255        .match_sub_id   = PS3_MATCH_SUB_ID_GPU_FB,
1256        .core.name      = DEVICE_NAME,
1257        .core.owner     = THIS_MODULE,
1258        .probe          = ps3fb_probe,
1259        .remove         = ps3fb_shutdown,
1260        .shutdown       = ps3fb_shutdown,
1261};
1262
1263static int __init ps3fb_setup(void)
1264{
1265        char *options;
1266
1267#ifdef MODULE
1268        return 0;
1269#endif
1270
1271        if (fb_get_options(DEVICE_NAME, &options))
1272                return -ENXIO;
1273
1274        if (!options || !*options)
1275                return 0;
1276
1277        while (1) {
1278                char *this_opt = strsep(&options, ",");
1279
1280                if (!this_opt)
1281                        break;
1282                if (!*this_opt)
1283                        continue;
1284                if (!strncmp(this_opt, "mode:", 5))
1285                        ps3fb_mode = simple_strtoul(this_opt + 5, NULL, 0);
1286                else
1287                        mode_option = this_opt;
1288        }
1289        return 0;
1290}
1291
1292static int __init ps3fb_init(void)
1293{
1294        if (!ps3fb_videomemory.address ||  ps3fb_setup())
1295                return -ENXIO;
1296
1297        return ps3_system_bus_driver_register(&ps3fb_driver);
1298}
1299
1300static void __exit ps3fb_exit(void)
1301{
1302        pr_debug(" -> %s:%d\n", __func__, __LINE__);
1303        ps3_system_bus_driver_unregister(&ps3fb_driver);
1304        pr_debug(" <- %s:%d\n", __func__, __LINE__);
1305}
1306
1307module_init(ps3fb_init);
1308module_exit(ps3fb_exit);
1309
1310MODULE_LICENSE("GPL");
1311MODULE_DESCRIPTION("PS3 GPU Frame Buffer Driver");
1312MODULE_AUTHOR("Sony Computer Entertainment Inc.");
1313MODULE_ALIAS(PS3_MODULE_ALIAS_GPU_FB);
1314
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