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/abs_addr.h>
  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_UP((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 __devinitdata;
 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((void __force *)info->screen_base, 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        unsigned long size, offset;
 710
 711        size = vma->vm_end - vma->vm_start;
 712        offset = vma->vm_pgoff << PAGE_SHIFT;
 713        if (offset + size > info->fix.smem_len)
 714                return -EINVAL;
 715
 716        offset += info->fix.smem_start;
 717        if (remap_pfn_range(vma, vma->vm_start, offset >> PAGE_SHIFT,
 718                            size, vma->vm_page_prot))
 719                return -EAGAIN;
 720
 721        dev_dbg(info->device, "ps3fb: mmap framebuffer P(%lx)->V(%lx)\n",
 722                offset, vma->vm_start);
 723        return 0;
 724}
 725
 726    /*
 727     * Blank the display
 728     */
 729
 730static int ps3fb_blank(int blank, struct fb_info *info)
 731{
 732        int retval;
 733
 734        dev_dbg(info->device, "%s: blank:%d\n", __func__, blank);
 735        switch (blank) {
 736        case FB_BLANK_POWERDOWN:
 737        case FB_BLANK_HSYNC_SUSPEND:
 738        case FB_BLANK_VSYNC_SUSPEND:
 739        case FB_BLANK_NORMAL:
 740                retval = ps3av_video_mute(1);   /* mute on */
 741                if (!retval)
 742                        ps3fb.is_blanked = 1;
 743                break;
 744
 745        default:                /* unblank */
 746                retval = ps3av_video_mute(0);   /* mute off */
 747                if (!retval)
 748                        ps3fb.is_blanked = 0;
 749                break;
 750        }
 751        return retval;
 752}
 753
 754static int ps3fb_get_vblank(struct fb_vblank *vblank)
 755{
 756        memset(vblank, 0, sizeof(*vblank));
 757        vblank->flags = FB_VBLANK_HAVE_VSYNC;
 758        return 0;
 759}
 760
 761static int ps3fb_wait_for_vsync(u32 crtc)
 762{
 763        int ret;
 764        u64 count;
 765
 766        count = ps3fb.vblank_count;
 767        ret = wait_event_interruptible_timeout(ps3fb.wait_vsync,
 768                                               count != ps3fb.vblank_count,
 769                                               HZ / 10);
 770        if (!ret)
 771                return -ETIMEDOUT;
 772
 773        return 0;
 774}
 775
 776
 777    /*
 778     * ioctl
 779     */
 780
 781static int ps3fb_ioctl(struct fb_info *info, unsigned int cmd,
 782                       unsigned long arg)
 783{
 784        void __user *argp = (void __user *)arg;
 785        u32 val;
 786        int retval = -EFAULT;
 787
 788        switch (cmd) {
 789        case FBIOGET_VBLANK:
 790                {
 791                        struct fb_vblank vblank;
 792                        dev_dbg(info->device, "FBIOGET_VBLANK:\n");
 793                        retval = ps3fb_get_vblank(&vblank);
 794                        if (retval)
 795                                break;
 796
 797                        if (copy_to_user(argp, &vblank, sizeof(vblank)))
 798                                retval = -EFAULT;
 799                        break;
 800                }
 801
 802        case FBIO_WAITFORVSYNC:
 803                {
 804                        u32 crt;
 805                        dev_dbg(info->device, "FBIO_WAITFORVSYNC:\n");
 806                        if (get_user(crt, (u32 __user *) arg))
 807                                break;
 808
 809                        retval = ps3fb_wait_for_vsync(crt);
 810                        break;
 811                }
 812
 813        case PS3FB_IOCTL_SETMODE:
 814                {
 815                        struct ps3fb_par *par = info->par;
 816                        const struct fb_videomode *vmode;
 817                        struct fb_var_screeninfo var;
 818
 819                        if (copy_from_user(&val, argp, sizeof(val)))
 820                                break;
 821
 822                        if (!(val & PS3AV_MODE_MASK)) {
 823                                u32 id = ps3av_get_auto_mode();
 824                                if (id > 0)
 825                                        val = (val & ~PS3AV_MODE_MASK) | id;
 826                        }
 827                        dev_dbg(info->device, "PS3FB_IOCTL_SETMODE:%x\n", val);
 828                        retval = -EINVAL;
 829                        vmode = ps3fb_vmode(val);
 830                        if (vmode) {
 831                                var = info->var;
 832                                fb_videomode_to_var(&var, vmode);
 833                                console_lock();
 834                                info->flags |= FBINFO_MISC_USEREVENT;
 835                                /* Force, in case only special bits changed */
 836                                var.activate |= FB_ACTIVATE_FORCE;
 837                                par->new_mode_id = val;
 838                                retval = fb_set_var(info, &var);
 839                                info->flags &= ~FBINFO_MISC_USEREVENT;
 840                                console_unlock();
 841                        }
 842                        break;
 843                }
 844
 845        case PS3FB_IOCTL_GETMODE:
 846                val = ps3av_get_mode();
 847                dev_dbg(info->device, "PS3FB_IOCTL_GETMODE:%x\n", val);
 848                if (!copy_to_user(argp, &val, sizeof(val)))
 849                        retval = 0;
 850                break;
 851
 852        case PS3FB_IOCTL_SCREENINFO:
 853                {
 854                        struct ps3fb_par *par = info->par;
 855                        struct ps3fb_ioctl_res res;
 856                        dev_dbg(info->device, "PS3FB_IOCTL_SCREENINFO:\n");
 857                        res.xres = info->fix.line_length / BPP;
 858                        res.yres = info->var.yres_virtual;
 859                        res.xoff = (res.xres - info->var.xres) / 2;
 860                        res.yoff = (res.yres - info->var.yres) / 2;
 861                        res.num_frames = par->num_frames;
 862                        if (!copy_to_user(argp, &res, sizeof(res)))
 863                                retval = 0;
 864                        break;
 865                }
 866
 867        case PS3FB_IOCTL_ON:
 868                dev_dbg(info->device, "PS3FB_IOCTL_ON:\n");
 869                atomic_inc(&ps3fb.ext_flip);
 870                retval = 0;
 871                break;
 872
 873        case PS3FB_IOCTL_OFF:
 874                dev_dbg(info->device, "PS3FB_IOCTL_OFF:\n");
 875                atomic_dec_if_positive(&ps3fb.ext_flip);
 876                retval = 0;
 877                break;
 878
 879        case PS3FB_IOCTL_FSEL:
 880                if (copy_from_user(&val, argp, sizeof(val)))
 881                        break;
 882
 883                dev_dbg(info->device, "PS3FB_IOCTL_FSEL:%d\n", val);
 884                console_lock();
 885                retval = ps3fb_sync(info, val);
 886                console_unlock();
 887                break;
 888
 889        default:
 890                retval = -ENOIOCTLCMD;
 891                break;
 892        }
 893        return retval;
 894}
 895
 896static int ps3fbd(void *arg)
 897{
 898        struct fb_info *info = arg;
 899
 900        set_freezable();
 901        while (!kthread_should_stop()) {
 902                try_to_freeze();
 903                set_current_state(TASK_INTERRUPTIBLE);
 904                if (ps3fb.is_kicked) {
 905                        ps3fb.is_kicked = 0;
 906                        console_lock();
 907                        ps3fb_sync(info, 0);    /* single buffer */
 908                        console_unlock();
 909                }
 910                schedule();
 911        }
 912        return 0;
 913}
 914
 915static irqreturn_t ps3fb_vsync_interrupt(int irq, void *ptr)
 916{
 917        struct device *dev = ptr;
 918        u64 v1;
 919        int status;
 920        struct display_head *head = &ps3fb.dinfo->display_head[1];
 921
 922        status = lv1_gpu_context_intr(ps3fb.context_handle, &v1);
 923        if (status) {
 924                dev_err(dev, "%s: lv1_gpu_context_intr failed: %d\n", __func__,
 925                        status);
 926                return IRQ_NONE;
 927        }
 928
 929        if (v1 & (1 << GPU_INTR_STATUS_VSYNC_1)) {
 930                /* VSYNC */
 931                ps3fb.vblank_count = head->vblank_count;
 932                if (ps3fb.task && !ps3fb.is_blanked &&
 933                    !atomic_read(&ps3fb.ext_flip)) {
 934                        ps3fb.is_kicked = 1;
 935                        wake_up_process(ps3fb.task);
 936                }
 937                wake_up_interruptible(&ps3fb.wait_vsync);
 938        }
 939
 940        return IRQ_HANDLED;
 941}
 942
 943
 944static struct fb_ops ps3fb_ops = {
 945        .fb_open        = ps3fb_open,
 946        .fb_release     = ps3fb_release,
 947        .fb_read        = fb_sys_read,
 948        .fb_write       = fb_sys_write,
 949        .fb_check_var   = ps3fb_check_var,
 950        .fb_set_par     = ps3fb_set_par,
 951        .fb_setcolreg   = ps3fb_setcolreg,
 952        .fb_pan_display = ps3fb_pan_display,
 953        .fb_fillrect    = sys_fillrect,
 954        .fb_copyarea    = sys_copyarea,
 955        .fb_imageblit   = sys_imageblit,
 956        .fb_mmap        = ps3fb_mmap,
 957        .fb_blank       = ps3fb_blank,
 958        .fb_ioctl       = ps3fb_ioctl,
 959        .fb_compat_ioctl = ps3fb_ioctl
 960};
 961
 962static struct fb_fix_screeninfo ps3fb_fix __initdata = {
 963        .id =           DEVICE_NAME,
 964        .type =         FB_TYPE_PACKED_PIXELS,
 965        .visual =       FB_VISUAL_TRUECOLOR,
 966        .accel =        FB_ACCEL_NONE,
 967};
 968
 969static int __devinit ps3fb_probe(struct ps3_system_bus_device *dev)
 970{
 971        struct fb_info *info;
 972        struct ps3fb_par *par;
 973        int retval;
 974        u64 ddr_lpar = 0;
 975        u64 lpar_dma_control = 0;
 976        u64 lpar_driver_info = 0;
 977        u64 lpar_reports = 0;
 978        u64 lpar_reports_size = 0;
 979        u64 xdr_lpar;
 980        struct gpu_driver_info *dinfo;
 981        void *fb_start;
 982        int status;
 983        struct task_struct *task;
 984        unsigned long max_ps3fb_size;
 985
 986        if (ps3fb_videomemory.size < GPU_CMD_BUF_SIZE) {
 987                dev_err(&dev->core, "%s: Not enough video memory\n", __func__);
 988                return -ENOMEM;
 989        }
 990
 991        retval = ps3_open_hv_device(dev);
 992        if (retval) {
 993                dev_err(&dev->core, "%s: ps3_open_hv_device failed\n",
 994                        __func__);
 995                goto err;
 996        }
 997
 998        if (!ps3fb_mode)
 999                ps3fb_mode = ps3av_get_mode();
1000        dev_dbg(&dev->core, "ps3fb_mode: %d\n", ps3fb_mode);
1001
1002        atomic_set(&ps3fb.f_count, -1); /* fbcon opens ps3fb */
1003        atomic_set(&ps3fb.ext_flip, 0); /* for flip with vsync */
1004        init_waitqueue_head(&ps3fb.wait_vsync);
1005
1006#ifdef HEAD_A
1007        status = lv1_gpu_display_sync(0x0, 0, L1GPU_DISPLAY_SYNC_VSYNC);
1008        if (status) {
1009                dev_err(&dev->core, "%s: lv1_gpu_display_sync failed: %d\n",
1010                        __func__, status);
1011                retval = -ENODEV;
1012                goto err_close_device;
1013        }
1014#endif
1015#ifdef HEAD_B
1016        status = lv1_gpu_display_sync(0x0, 1, L1GPU_DISPLAY_SYNC_VSYNC);
1017        if (status) {
1018                dev_err(&dev->core, "%s: lv1_gpu_display_sync failed: %d\n",
1019                        __func__, status);
1020                retval = -ENODEV;
1021                goto err_close_device;
1022        }
1023#endif
1024
1025        max_ps3fb_size = _ALIGN_UP(GPU_IOIF, 256*1024*1024) - GPU_IOIF;
1026        if (ps3fb_videomemory.size > max_ps3fb_size) {
1027                dev_info(&dev->core, "Limiting ps3fb mem size to %lu bytes\n",
1028                         max_ps3fb_size);
1029                ps3fb_videomemory.size = max_ps3fb_size;
1030        }
1031
1032        /* get gpu context handle */
1033        status = lv1_gpu_memory_allocate(ps3fb_videomemory.size, 0, 0, 0, 0,
1034                                         &ps3fb.memory_handle, &ddr_lpar);
1035        if (status) {
1036                dev_err(&dev->core, "%s: lv1_gpu_memory_allocate failed: %d\n",
1037                        __func__, status);
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                goto err_gpu_memory_free;
1051        }
1052
1053        /* vsync interrupt */
1054        dinfo = (void __force *)ioremap(lpar_driver_info, 128 * 1024);
1055        if (!dinfo) {
1056                dev_err(&dev->core, "%s: ioremap failed\n", __func__);
1057                goto err_gpu_context_free;
1058        }
1059
1060        ps3fb.dinfo = dinfo;
1061        dev_dbg(&dev->core, "version_driver:%x\n", dinfo->version_driver);
1062        dev_dbg(&dev->core, "irq outlet:%x\n", dinfo->irq.irq_outlet);
1063        dev_dbg(&dev->core, "version_gpu: %x memory_size: %x ch: %x "
1064                "core_freq: %d mem_freq:%d\n", dinfo->version_gpu,
1065                dinfo->memory_size, dinfo->hardware_channel,
1066                dinfo->nvcore_frequency/1000000,
1067                dinfo->memory_frequency/1000000);
1068
1069        if (dinfo->version_driver != GPU_DRIVER_INFO_VERSION) {
1070                dev_err(&dev->core, "%s: version_driver err:%x\n", __func__,
1071                        dinfo->version_driver);
1072                retval = -EINVAL;
1073                goto err_iounmap_dinfo;
1074        }
1075
1076        retval = ps3_irq_plug_setup(PS3_BINDING_CPU_ANY, dinfo->irq.irq_outlet,
1077                                    &ps3fb.irq_no);
1078        if (retval) {
1079                dev_err(&dev->core, "%s: ps3_alloc_irq failed %d\n", __func__,
1080                        retval);
1081                goto err_iounmap_dinfo;
1082        }
1083
1084        retval = request_irq(ps3fb.irq_no, ps3fb_vsync_interrupt,
1085                             0, DEVICE_NAME, &dev->core);
1086        if (retval) {
1087                dev_err(&dev->core, "%s: request_irq failed %d\n", __func__,
1088                        retval);
1089                goto err_destroy_plug;
1090        }
1091
1092        dinfo->irq.mask = (1 << GPU_INTR_STATUS_VSYNC_1) |
1093                          (1 << GPU_INTR_STATUS_FLIP_1);
1094
1095        /* Clear memory to prevent kernel info leakage into userspace */
1096        memset(ps3fb_videomemory.address, 0, ps3fb_videomemory.size);
1097
1098        xdr_lpar = ps3_mm_phys_to_lpar(__pa(ps3fb_videomemory.address));
1099
1100        status = lv1_gpu_context_iomap(ps3fb.context_handle, GPU_IOIF,
1101                                       xdr_lpar, ps3fb_videomemory.size,
1102                                       CBE_IOPTE_PP_W | CBE_IOPTE_PP_R |
1103                                       CBE_IOPTE_M);
1104        if (status) {
1105                dev_err(&dev->core, "%s: lv1_gpu_context_iomap failed: %d\n",
1106                        __func__, status);
1107                retval =  -ENXIO;
1108                goto err_free_irq;
1109        }
1110
1111        dev_dbg(&dev->core, "video:%p ioif:%lx lpar:%llx size:%lx\n",
1112                ps3fb_videomemory.address, GPU_IOIF, xdr_lpar,
1113                ps3fb_videomemory.size);
1114
1115        status = lv1_gpu_fb_setup(ps3fb.context_handle, xdr_lpar,
1116                                  GPU_CMD_BUF_SIZE, GPU_IOIF);
1117        if (status) {
1118                dev_err(&dev->core, "%s: lv1_gpu_fb_setup failed: %d\n",
1119                        __func__, status);
1120                retval = -ENXIO;
1121                goto err_context_unmap;
1122        }
1123
1124        info = framebuffer_alloc(sizeof(struct ps3fb_par), &dev->core);
1125        if (!info)
1126                goto err_context_fb_close;
1127
1128        par = info->par;
1129        par->mode_id = ~ps3fb_mode;     /* != ps3fb_mode, to trigger change */
1130        par->new_mode_id = ps3fb_mode;
1131        par->num_frames = 1;
1132
1133        info->fbops = &ps3fb_ops;
1134        info->fix = ps3fb_fix;
1135
1136        /*
1137         * The GPU command buffer is at the start of video memory
1138         * As we don't use the full command buffer, we can put the actual
1139         * frame buffer at offset GPU_FB_START and save some precious XDR
1140         * memory
1141         */
1142        fb_start = ps3fb_videomemory.address + GPU_FB_START;
1143        info->screen_base = (char __force __iomem *)fb_start;
1144        info->fix.smem_start = virt_to_abs(fb_start);
1145        info->fix.smem_len = ps3fb_videomemory.size - GPU_FB_START;
1146
1147        info->pseudo_palette = par->pseudo_palette;
1148        info->flags = FBINFO_DEFAULT | FBINFO_READS_FAST |
1149                      FBINFO_HWACCEL_XPAN | FBINFO_HWACCEL_YPAN;
1150
1151        retval = fb_alloc_cmap(&info->cmap, 256, 0);
1152        if (retval < 0)
1153                goto err_framebuffer_release;
1154
1155        if (!fb_find_mode(&info->var, info, mode_option, ps3fb_modedb,
1156                          ARRAY_SIZE(ps3fb_modedb),
1157                          ps3fb_vmode(par->new_mode_id), 32)) {
1158                retval = -EINVAL;
1159                goto err_fb_dealloc;
1160        }
1161
1162        fb_videomode_to_modelist(ps3fb_modedb, ARRAY_SIZE(ps3fb_modedb),
1163                                 &info->modelist);
1164
1165        retval = register_framebuffer(info);
1166        if (retval < 0)
1167                goto err_fb_dealloc;
1168
1169        ps3_system_bus_set_drvdata(dev, info);
1170
1171        dev_info(info->device, "%s %s, using %u KiB of video memory\n",
1172                 dev_driver_string(info->dev), dev_name(info->dev),
1173                 info->fix.smem_len >> 10);
1174
1175        task = kthread_run(ps3fbd, info, DEVICE_NAME);
1176        if (IS_ERR(task)) {
1177                retval = PTR_ERR(task);
1178                goto err_unregister_framebuffer;
1179        }
1180
1181        ps3fb.task = task;
1182
1183        return 0;
1184
1185err_unregister_framebuffer:
1186        unregister_framebuffer(info);
1187err_fb_dealloc:
1188        fb_dealloc_cmap(&info->cmap);
1189err_framebuffer_release:
1190        framebuffer_release(info);
1191err_context_fb_close:
1192        lv1_gpu_fb_close(ps3fb.context_handle);
1193err_context_unmap:
1194        lv1_gpu_context_iomap(ps3fb.context_handle, GPU_IOIF, xdr_lpar,
1195                              ps3fb_videomemory.size, CBE_IOPTE_M);
1196err_free_irq:
1197        free_irq(ps3fb.irq_no, &dev->core);
1198err_destroy_plug:
1199        ps3_irq_plug_destroy(ps3fb.irq_no);
1200err_iounmap_dinfo:
1201        iounmap((u8 __force __iomem *)ps3fb.dinfo);
1202err_gpu_context_free:
1203        lv1_gpu_context_free(ps3fb.context_handle);
1204err_gpu_memory_free:
1205        lv1_gpu_memory_free(ps3fb.memory_handle);
1206err_close_device:
1207        ps3_close_hv_device(dev);
1208err:
1209        return retval;
1210}
1211
1212static int ps3fb_shutdown(struct ps3_system_bus_device *dev)
1213{
1214        struct fb_info *info = ps3_system_bus_get_drvdata(dev);
1215        u64 xdr_lpar = ps3_mm_phys_to_lpar(__pa(ps3fb_videomemory.address));
1216
1217        dev_dbg(&dev->core, " -> %s:%d\n", __func__, __LINE__);
1218
1219        atomic_inc(&ps3fb.ext_flip);    /* flip off */
1220        ps3fb.dinfo->irq.mask = 0;
1221
1222        if (ps3fb.task) {
1223                struct task_struct *task = ps3fb.task;
1224                ps3fb.task = NULL;
1225                kthread_stop(task);
1226        }
1227        if (ps3fb.irq_no) {
1228                free_irq(ps3fb.irq_no, &dev->core);
1229                ps3_irq_plug_destroy(ps3fb.irq_no);
1230        }
1231        if (info) {
1232                unregister_framebuffer(info);
1233                fb_dealloc_cmap(&info->cmap);
1234                framebuffer_release(info);
1235                ps3_system_bus_set_drvdata(dev, NULL);
1236        }
1237        iounmap((u8 __force __iomem *)ps3fb.dinfo);
1238        lv1_gpu_fb_close(ps3fb.context_handle);
1239        lv1_gpu_context_iomap(ps3fb.context_handle, GPU_IOIF, xdr_lpar,
1240                              ps3fb_videomemory.size, CBE_IOPTE_M);
1241        lv1_gpu_context_free(ps3fb.context_handle);
1242        lv1_gpu_memory_free(ps3fb.memory_handle);
1243        ps3_close_hv_device(dev);
1244        dev_dbg(&dev->core, " <- %s:%d\n", __func__, __LINE__);
1245
1246        return 0;
1247}
1248
1249static struct ps3_system_bus_driver ps3fb_driver = {
1250        .match_id       = PS3_MATCH_ID_GPU,
1251        .match_sub_id   = PS3_MATCH_SUB_ID_GPU_FB,
1252        .core.name      = DEVICE_NAME,
1253        .core.owner     = THIS_MODULE,
1254        .probe          = ps3fb_probe,
1255        .remove         = ps3fb_shutdown,
1256        .shutdown       = ps3fb_shutdown,
1257};
1258
1259static int __init ps3fb_setup(void)
1260{
1261        char *options;
1262
1263#ifdef MODULE
1264        return 0;
1265#endif
1266
1267        if (fb_get_options(DEVICE_NAME, &options))
1268                return -ENXIO;
1269
1270        if (!options || !*options)
1271                return 0;
1272
1273        while (1) {
1274                char *this_opt = strsep(&options, ",");
1275
1276                if (!this_opt)
1277                        break;
1278                if (!*this_opt)
1279                        continue;
1280                if (!strncmp(this_opt, "mode:", 5))
1281                        ps3fb_mode = simple_strtoul(this_opt + 5, NULL, 0);
1282                else
1283                        mode_option = this_opt;
1284        }
1285        return 0;
1286}
1287
1288static int __init ps3fb_init(void)
1289{
1290        if (!ps3fb_videomemory.address ||  ps3fb_setup())
1291                return -ENXIO;
1292
1293        return ps3_system_bus_driver_register(&ps3fb_driver);
1294}
1295
1296static void __exit ps3fb_exit(void)
1297{
1298        pr_debug(" -> %s:%d\n", __func__, __LINE__);
1299        ps3_system_bus_driver_unregister(&ps3fb_driver);
1300        pr_debug(" <- %s:%d\n", __func__, __LINE__);
1301}
1302
1303module_init(ps3fb_init);
1304module_exit(ps3fb_exit);
1305
1306MODULE_LICENSE("GPL");
1307MODULE_DESCRIPTION("PS3 GPU Frame Buffer Driver");
1308MODULE_AUTHOR("Sony Computer Entertainment Inc.");
1309MODULE_ALIAS(PS3_MODULE_ALIAS_GPU_FB);
1310
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