1305 lines · c
1/*2 * linux/drivers/video/ps3fb.c -- PS3 GPU frame buffer device3 *4 * Copyright (C) 2006 Sony Computer Entertainment Inc.5 * Copyright 2006, 2007 Sony Corporation6 *7 * This file is based on :8 *9 * linux/drivers/video/vfb.c -- Virtual frame buffer device10 *11 * Copyright (C) 2002 James Simmons12 *13 * Copyright (C) 1997 Geert Uytterhoeven14 *15 * This file is subject to the terms and conditions of the GNU General Public16 * License. See the file COPYING in the main directory of this archive for17 * more details.18 */19 20#include <linux/module.h>21#include <linux/kernel.h>22#include <linux/errno.h>23#include <linux/string.h>24#include <linux/mm.h>25#include <linux/interrupt.h>26#include <linux/console.h>27#include <linux/ioctl.h>28#include <linux/kthread.h>29#include <linux/freezer.h>30#include <linux/uaccess.h>31#include <linux/fb.h>32#include <linux/fbcon.h>33#include <linux/init.h>34 35#include <asm/cell-regs.h>36#include <asm/lv1call.h>37#include <asm/ps3av.h>38#include <asm/ps3fb.h>39#include <asm/ps3.h>40#include <asm/ps3gpu.h>41 42 43#define DEVICE_NAME "ps3fb"44 45#define GPU_CMD_BUF_SIZE (2 * 1024 * 1024)46#define GPU_FB_START (64 * 1024)47#define GPU_IOIF (0x0d000000UL)48#define GPU_ALIGN_UP(x) ALIGN((x), 64)49#define GPU_MAX_LINE_LENGTH (65536 - 64)50 51#define GPU_INTR_STATUS_VSYNC_0 0 /* vsync on head A */52#define GPU_INTR_STATUS_VSYNC_1 1 /* vsync on head B */53#define GPU_INTR_STATUS_FLIP_0 3 /* flip head A */54#define GPU_INTR_STATUS_FLIP_1 4 /* flip head B */55#define GPU_INTR_STATUS_QUEUE_0 5 /* queue head A */56#define GPU_INTR_STATUS_QUEUE_1 6 /* queue head B */57 58#define GPU_DRIVER_INFO_VERSION 0x21159 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 10139 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_INTERLACED146 }, {147 /* 480p */148 "480p", 60, 576, 384, 37037, 130, 89, 78, 57, 63, 6,149 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED150 }, {151 /* 720p */152 "720p", 60, 1124, 644, 13481, 298, 148, 57, 44, 80, 5,153 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED154 }, {155 /* 1080i */156 "1080i", 60, 1688, 964, 13481, 264, 160, 94, 62, 88, 5,157 FB_SYNC_BROADCAST, FB_VMODE_INTERLACED158 }, {159 /* 1080p */160 "1080p", 60, 1688, 964, 6741, 264, 160, 94, 62, 88, 5,161 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED162 },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_INTERLACED169 }, {170 /* 576p */171 "576p", 50, 576, 460, 37037, 142, 83, 97, 63, 63, 5,172 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED173 }, {174 /* 720p */175 "720p", 50, 1124, 644, 13468, 298, 478, 57, 44, 80, 5,176 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED177 }, {178 /* 1080i */179 "1080i", 50, 1688, 964, 13468, 264, 600, 94, 62, 88, 5,180 FB_SYNC_BROADCAST, FB_VMODE_INTERLACED181 }, {182 /* 1080p */183 "1080p", 50, 1688, 964, 6734, 264, 600, 94, 62, 88, 5,184 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED185 },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_INTERLACED193 }, {194 /* 480pf */195 "480pf", 60, 720, 480, 37037, 58, 17, 30, 9, 63, 6,196 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED197 }, {198 /* 720pf */199 "720pf", 60, 1280, 720, 13481, 220, 70, 19, 6, 80, 5,200 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED201 }, {202 /* 1080if */203 "1080if", 60, 1920, 1080, 13481, 148, 44, 36, 4, 88, 5,204 FB_SYNC_BROADCAST, FB_VMODE_INTERLACED205 }, {206 /* 1080pf */207 "1080pf", 60, 1920, 1080, 6741, 148, 44, 36, 4, 88, 5,208 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED209 },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_INTERLACED216 }, {217 /* 576pf */218 "576pf", 50, 720, 576, 37037, 70, 11, 39, 5, 63, 5,219 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED220 }, {221 /* 720pf */222 "720pf", 50, 1280, 720, 13468, 220, 400, 19, 6, 80, 5,223 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED224 }, {225 /* 1080if */226 "1080if", 50, 1920, 1080, 13468, 148, 484, 36, 4, 88, 5,227 FB_SYNC_BROADCAST, FB_VMODE_INTERLACED228 }, {229 /* 1080pf */230 "1080pf", 50, 1920, 1080, 6734, 148, 484, 36, 4, 88, 5,231 FB_SYNC_BROADCAST, FB_VMODE_NONINTERLACED232 },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_VESA240 }, {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_VESA245 }, {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_VESA250 }251};252 253 254#define HEAD_A255#define HEAD_B256 257#define BPP 4 /* number of bytes per pixel */258 259 260static int ps3fb_mode;261module_param(ps3fb_mode, int, 0);262 263static char *mode_option;264 265static int ps3fb_cmp_mode(const struct fb_videomode *vmode,266 const struct fb_var_screeninfo *var)267{268 long xres, yres, left_margin, right_margin, upper_margin, lower_margin;269 long dx, dy;270 271 /* maximum values */272 if (var->xres > vmode->xres || var->yres > vmode->yres ||273 var->pixclock > vmode->pixclock ||274 var->hsync_len > vmode->hsync_len ||275 var->vsync_len > vmode->vsync_len)276 return -1;277 278 /* progressive/interlaced must match */279 if ((var->vmode & FB_VMODE_MASK) != vmode->vmode)280 return -1;281 282 /* minimum resolution */283 xres = max(var->xres, 1U);284 yres = max(var->yres, 1U);285 286 /* minimum margins */287 left_margin = max(var->left_margin, vmode->left_margin);288 right_margin = max(var->right_margin, vmode->right_margin);289 upper_margin = max(var->upper_margin, vmode->upper_margin);290 lower_margin = max(var->lower_margin, vmode->lower_margin);291 292 /* resolution + margins may not exceed native parameters */293 dx = ((long)vmode->left_margin + (long)vmode->xres +294 (long)vmode->right_margin) -295 (left_margin + xres + right_margin);296 if (dx < 0)297 return -1;298 299 dy = ((long)vmode->upper_margin + (long)vmode->yres +300 (long)vmode->lower_margin) -301 (upper_margin + yres + lower_margin);302 if (dy < 0)303 return -1;304 305 /* exact match */306 if (!dx && !dy)307 return 0;308 309 /* resolution difference */310 return (vmode->xres - xres) * (vmode->yres - yres);311}312 313static const struct fb_videomode *ps3fb_native_vmode(enum ps3av_mode_num id)314{315 return &ps3fb_modedb[FIRST_NATIVE_MODE_INDEX + id - 1];316}317 318static const struct fb_videomode *ps3fb_vmode(int id)319{320 u32 mode = id & PS3AV_MODE_MASK;321 322 if (mode < PS3AV_MODE_480I || mode > PS3AV_MODE_WUXGA)323 return NULL;324 325 if (mode <= PS3AV_MODE_1080P50 && !(id & PS3AV_MODE_FULL)) {326 /* Non-fullscreen broadcast mode */327 return &ps3fb_modedb[mode - 1];328 }329 330 return ps3fb_native_vmode(mode);331}332 333static unsigned int ps3fb_find_mode(struct fb_var_screeninfo *var,334 u32 *ddr_line_length, u32 *xdr_line_length)335{336 unsigned int id, best_id;337 int diff, best_diff;338 const struct fb_videomode *vmode;339 long gap;340 341 best_id = 0;342 best_diff = INT_MAX;343 pr_debug("%s: wanted %u [%u] %u x %u [%u] %u\n", __func__,344 var->left_margin, var->xres, var->right_margin,345 var->upper_margin, var->yres, var->lower_margin);346 for (id = PS3AV_MODE_480I; id <= PS3AV_MODE_WUXGA; id++) {347 vmode = ps3fb_native_vmode(id);348 diff = ps3fb_cmp_mode(vmode, var);349 pr_debug("%s: mode %u: %u [%u] %u x %u [%u] %u: diff = %d\n",350 __func__, id, vmode->left_margin, vmode->xres,351 vmode->right_margin, vmode->upper_margin,352 vmode->yres, vmode->lower_margin, diff);353 if (diff < 0)354 continue;355 if (diff < best_diff) {356 best_id = id;357 if (!diff)358 break;359 best_diff = diff;360 }361 }362 363 if (!best_id) {364 pr_debug("%s: no suitable mode found\n", __func__);365 return 0;366 }367 368 id = best_id;369 vmode = ps3fb_native_vmode(id);370 371 *ddr_line_length = vmode->xres * BPP;372 373 /* minimum resolution */374 if (!var->xres)375 var->xres = 1;376 if (!var->yres)377 var->yres = 1;378 379 /* minimum virtual resolution */380 if (var->xres_virtual < var->xres)381 var->xres_virtual = var->xres;382 if (var->yres_virtual < var->yres)383 var->yres_virtual = var->yres;384 385 /* minimum margins */386 if (var->left_margin < vmode->left_margin)387 var->left_margin = vmode->left_margin;388 if (var->right_margin < vmode->right_margin)389 var->right_margin = vmode->right_margin;390 if (var->upper_margin < vmode->upper_margin)391 var->upper_margin = vmode->upper_margin;392 if (var->lower_margin < vmode->lower_margin)393 var->lower_margin = vmode->lower_margin;394 395 /* extra margins */396 gap = ((long)vmode->left_margin + (long)vmode->xres +397 (long)vmode->right_margin) -398 ((long)var->left_margin + (long)var->xres +399 (long)var->right_margin);400 if (gap > 0) {401 var->left_margin += gap/2;402 var->right_margin += (gap+1)/2;403 pr_debug("%s: rounded up H to %u [%u] %u\n", __func__,404 var->left_margin, var->xres, var->right_margin);405 }406 407 gap = ((long)vmode->upper_margin + (long)vmode->yres +408 (long)vmode->lower_margin) -409 ((long)var->upper_margin + (long)var->yres +410 (long)var->lower_margin);411 if (gap > 0) {412 var->upper_margin += gap/2;413 var->lower_margin += (gap+1)/2;414 pr_debug("%s: rounded up V to %u [%u] %u\n", __func__,415 var->upper_margin, var->yres, var->lower_margin);416 }417 418 /* fixed fields */419 var->pixclock = vmode->pixclock;420 var->hsync_len = vmode->hsync_len;421 var->vsync_len = vmode->vsync_len;422 var->sync = vmode->sync;423 424 if (ps3_compare_firmware_version(1, 9, 0) >= 0) {425 *xdr_line_length = GPU_ALIGN_UP(var->xres_virtual * BPP);426 if (*xdr_line_length > GPU_MAX_LINE_LENGTH)427 *xdr_line_length = GPU_MAX_LINE_LENGTH;428 } else429 *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_A467 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#endif472#ifdef HEAD_B473 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#endif478}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 anything528 * to hardware, it should only verify and adjust var.529 * This means it doesn't alter par but it does use hardware530 * data from it to check this var.531 */532 533static int ps3fb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)534{535 u32 xdr_line_length, ddr_line_length;536 int mode;537 538 mode = ps3fb_find_mode(var, &ddr_line_length, &xdr_line_length);539 if (!mode)540 return -EINVAL;541 542 /* Virtual screen */543 if (var->xres_virtual > xdr_line_length / BPP) {544 dev_dbg(info->device,545 "Horizontal virtual screen size too large\n");546 return -EINVAL;547 }548 549 if (var->xoffset + var->xres > var->xres_virtual ||550 var->yoffset + var->yres > var->yres_virtual) {551 dev_dbg(info->device, "panning out-of-range\n");552 return -EINVAL;553 }554 555 /* We support ARGB8888 only */556 if (var->bits_per_pixel > 32 || var->grayscale ||557 var->red.offset > 16 || var->green.offset > 8 ||558 var->blue.offset > 0 || var->transp.offset > 24 ||559 var->red.length > 8 || var->green.length > 8 ||560 var->blue.length > 8 || var->transp.length > 8 ||561 var->red.msb_right || var->green.msb_right ||562 var->blue.msb_right || var->transp.msb_right || var->nonstd) {563 dev_dbg(info->device, "We support ARGB8888 only\n");564 return -EINVAL;565 }566 567 var->bits_per_pixel = 32;568 var->red.offset = 16;569 var->green.offset = 8;570 var->blue.offset = 0;571 var->transp.offset = 24;572 var->red.length = 8;573 var->green.length = 8;574 var->blue.length = 8;575 var->transp.length = 8;576 var->red.msb_right = 0;577 var->green.msb_right = 0;578 var->blue.msb_right = 0;579 var->transp.msb_right = 0;580 581 /* Rotation is not supported */582 if (var->rotate) {583 dev_dbg(info->device, "Rotation is not supported\n");584 return -EINVAL;585 }586 587 /* Memory limit */588 if (var->yres_virtual * xdr_line_length > info->fix.smem_len) {589 dev_dbg(info->device, "Not enough memory\n");590 return -ENOMEM;591 }592 593 var->height = -1;594 var->width = -1;595 596 return 0;597}598 599 /*600 * This routine actually sets the video mode.601 */602 603static int ps3fb_set_par(struct fb_info *info)604{605 struct ps3fb_par *par = info->par;606 unsigned int mode, ddr_line_length, xdr_line_length, lines, maxlines;607 unsigned int ddr_xoff, ddr_yoff, offset;608 const struct fb_videomode *vmode;609 u64 dst;610 611 mode = ps3fb_find_mode(&info->var, &ddr_line_length, &xdr_line_length);612 if (!mode)613 return -EINVAL;614 615 vmode = ps3fb_native_vmode(mode & PS3AV_MODE_MASK);616 617 info->fix.xpanstep = info->var.xres_virtual > info->var.xres ? 1 : 0;618 info->fix.ypanstep = info->var.yres_virtual > info->var.yres ? 1 : 0;619 info->fix.line_length = xdr_line_length;620 621 par->ddr_line_length = ddr_line_length;622 par->ddr_frame_size = vmode->yres * ddr_line_length;623 par->xdr_frame_size = info->var.yres_virtual * xdr_line_length;624 625 par->num_frames = info->fix.smem_len /626 max(par->ddr_frame_size, par->xdr_frame_size);627 628 /* Keep the special bits we cannot set using fb_var_screeninfo */629 par->new_mode_id = (par->new_mode_id & ~PS3AV_MODE_MASK) | mode;630 631 par->width = info->var.xres;632 par->height = info->var.yres;633 634 /* Start of the virtual frame buffer (relative to fullscreen) */635 ddr_xoff = info->var.left_margin - vmode->left_margin;636 ddr_yoff = info->var.upper_margin - vmode->upper_margin;637 offset = ddr_yoff * ddr_line_length + ddr_xoff * BPP;638 639 par->fb_offset = GPU_ALIGN_UP(offset);640 par->full_offset = par->fb_offset - offset;641 par->pan_offset = info->var.yoffset * xdr_line_length +642 info->var.xoffset * BPP;643 644 if (par->new_mode_id != par->mode_id) {645 if (ps3av_set_video_mode(par->new_mode_id)) {646 par->new_mode_id = par->mode_id;647 return -EINVAL;648 }649 par->mode_id = par->new_mode_id;650 }651 652 /* Clear XDR frame buffer memory */653 memset(info->screen_buffer, 0, info->fix.smem_len);654 655 /* Clear DDR frame buffer memory */656 lines = vmode->yres * par->num_frames;657 if (par->full_offset)658 lines++;659 maxlines = info->fix.smem_len / ddr_line_length;660 for (dst = 0; lines; dst += maxlines * ddr_line_length) {661 unsigned int l = min(lines, maxlines);662 ps3fb_sync_image(info->device, 0, dst, 0, vmode->xres, l,663 ddr_line_length, ddr_line_length);664 lines -= l;665 }666 667 return 0;668}669 670 /*671 * Set a single color register. The values supplied are already672 * rounded down to the hardware's capabilities (according to the673 * 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 function705 */706 707static int ps3fb_mmap(struct fb_info *info, struct vm_area_struct *vma)708{709 int r;710 711 vma->vm_page_prot = pgprot_decrypted(vma->vm_page_prot);712 713 r = vm_iomap_memory(vma, info->fix.smem_start, info->fix.smem_len);714 715 dev_dbg(info->device, "ps3fb: mmap framebuffer P(%lx)->V(%lx)\n",716 info->fix.smem_start + (vma->vm_pgoff << PAGE_SHIFT),717 vma->vm_start);718 719 return r;720}721 722 /*723 * Blank the display724 */725 726static int ps3fb_blank(int blank, struct fb_info *info)727{728 int retval;729 730 dev_dbg(info->device, "%s: blank:%d\n", __func__, blank);731 switch (blank) {732 case FB_BLANK_POWERDOWN:733 case FB_BLANK_HSYNC_SUSPEND:734 case FB_BLANK_VSYNC_SUSPEND:735 case FB_BLANK_NORMAL:736 retval = ps3av_video_mute(1); /* mute on */737 if (!retval)738 ps3fb.is_blanked = 1;739 break;740 741 default: /* unblank */742 retval = ps3av_video_mute(0); /* mute off */743 if (!retval)744 ps3fb.is_blanked = 0;745 break;746 }747 return retval;748}749 750static int ps3fb_get_vblank(struct fb_vblank *vblank)751{752 memset(vblank, 0, sizeof(*vblank));753 vblank->flags = FB_VBLANK_HAVE_VSYNC;754 return 0;755}756 757static int ps3fb_wait_for_vsync(u32 crtc)758{759 int ret;760 u64 count;761 762 count = ps3fb.vblank_count;763 ret = wait_event_interruptible_timeout(ps3fb.wait_vsync,764 count != ps3fb.vblank_count,765 HZ / 10);766 if (!ret)767 return -ETIMEDOUT;768 769 return 0;770}771 772 773 /*774 * ioctl775 */776 777static int ps3fb_ioctl(struct fb_info *info, unsigned int cmd,778 unsigned long arg)779{780 void __user *argp = (void __user *)arg;781 u32 val;782 int retval = -EFAULT;783 784 switch (cmd) {785 case FBIOGET_VBLANK:786 {787 struct fb_vblank vblank;788 dev_dbg(info->device, "FBIOGET_VBLANK:\n");789 retval = ps3fb_get_vblank(&vblank);790 if (retval)791 break;792 793 if (copy_to_user(argp, &vblank, sizeof(vblank)))794 retval = -EFAULT;795 break;796 }797 798 case FBIO_WAITFORVSYNC:799 {800 u32 crt;801 dev_dbg(info->device, "FBIO_WAITFORVSYNC:\n");802 if (get_user(crt, (u32 __user *) arg))803 break;804 805 retval = ps3fb_wait_for_vsync(crt);806 break;807 }808 809 case PS3FB_IOCTL_SETMODE:810 {811 struct ps3fb_par *par = info->par;812 const struct fb_videomode *vmode;813 struct fb_var_screeninfo var;814 815 if (copy_from_user(&val, argp, sizeof(val)))816 break;817 818 if (!(val & PS3AV_MODE_MASK)) {819 u32 id = ps3av_get_auto_mode();820 if (id > 0)821 val = (val & ~PS3AV_MODE_MASK) | id;822 }823 dev_dbg(info->device, "PS3FB_IOCTL_SETMODE:%x\n", val);824 retval = -EINVAL;825 vmode = ps3fb_vmode(val);826 if (vmode) {827 var = info->var;828 fb_videomode_to_var(&var, vmode);829 console_lock();830 /* Force, in case only special bits changed */831 var.activate |= FB_ACTIVATE_FORCE;832 par->new_mode_id = val;833 retval = fb_set_var(info, &var);834 if (!retval)835 fbcon_update_vcs(info, var.activate & FB_ACTIVATE_ALL);836 console_unlock();837 }838 break;839 }840 841 case PS3FB_IOCTL_GETMODE:842 val = ps3av_get_mode();843 dev_dbg(info->device, "PS3FB_IOCTL_GETMODE:%x\n", val);844 if (!copy_to_user(argp, &val, sizeof(val)))845 retval = 0;846 break;847 848 case PS3FB_IOCTL_SCREENINFO:849 {850 struct ps3fb_par *par = info->par;851 struct ps3fb_ioctl_res res;852 dev_dbg(info->device, "PS3FB_IOCTL_SCREENINFO:\n");853 res.xres = info->fix.line_length / BPP;854 res.yres = info->var.yres_virtual;855 res.xoff = (res.xres - info->var.xres) / 2;856 res.yoff = (res.yres - info->var.yres) / 2;857 res.num_frames = par->num_frames;858 if (!copy_to_user(argp, &res, sizeof(res)))859 retval = 0;860 break;861 }862 863 case PS3FB_IOCTL_ON:864 dev_dbg(info->device, "PS3FB_IOCTL_ON:\n");865 atomic_inc(&ps3fb.ext_flip);866 retval = 0;867 break;868 869 case PS3FB_IOCTL_OFF:870 dev_dbg(info->device, "PS3FB_IOCTL_OFF:\n");871 atomic_dec_if_positive(&ps3fb.ext_flip);872 retval = 0;873 break;874 875 case PS3FB_IOCTL_FSEL:876 if (copy_from_user(&val, argp, sizeof(val)))877 break;878 879 dev_dbg(info->device, "PS3FB_IOCTL_FSEL:%d\n", val);880 console_lock();881 retval = ps3fb_sync(info, val);882 console_unlock();883 break;884 885 default:886 retval = -ENOIOCTLCMD;887 break;888 }889 return retval;890}891 892static int ps3fbd(void *arg)893{894 struct fb_info *info = arg;895 896 set_freezable();897 while (!kthread_should_stop()) {898 try_to_freeze();899 set_current_state(TASK_INTERRUPTIBLE);900 if (ps3fb.is_kicked) {901 ps3fb.is_kicked = 0;902 console_lock();903 ps3fb_sync(info, 0); /* single buffer */904 console_unlock();905 }906 schedule();907 }908 return 0;909}910 911static irqreturn_t ps3fb_vsync_interrupt(int irq, void *ptr)912{913 struct device *dev = ptr;914 u64 v1;915 int status;916 struct display_head *head = &ps3fb.dinfo->display_head[1];917 918 status = lv1_gpu_context_intr(ps3fb.context_handle, &v1);919 if (status) {920 dev_err(dev, "%s: lv1_gpu_context_intr failed: %d\n", __func__,921 status);922 return IRQ_NONE;923 }924 925 if (v1 & (1 << GPU_INTR_STATUS_VSYNC_1)) {926 /* VSYNC */927 ps3fb.vblank_count = head->vblank_count;928 if (ps3fb.task && !ps3fb.is_blanked &&929 !atomic_read(&ps3fb.ext_flip)) {930 ps3fb.is_kicked = 1;931 wake_up_process(ps3fb.task);932 }933 wake_up_interruptible(&ps3fb.wait_vsync);934 }935 936 return IRQ_HANDLED;937}938 939 940static const struct fb_ops ps3fb_ops = {941 .owner = THIS_MODULE,942 .fb_open = ps3fb_open,943 .fb_release = ps3fb_release,944 __FB_DEFAULT_SYSMEM_OPS_RDWR,945 .fb_check_var = ps3fb_check_var,946 .fb_set_par = ps3fb_set_par,947 .fb_setcolreg = ps3fb_setcolreg,948 .fb_pan_display = ps3fb_pan_display,949 __FB_DEFAULT_SYSMEM_OPS_DRAW,950 .fb_mmap = ps3fb_mmap,951 .fb_blank = ps3fb_blank,952 .fb_ioctl = ps3fb_ioctl,953 .fb_compat_ioctl = ps3fb_ioctl954};955 956static const struct fb_fix_screeninfo ps3fb_fix = {957 .id = DEVICE_NAME,958 .type = FB_TYPE_PACKED_PIXELS,959 .visual = FB_VISUAL_TRUECOLOR,960 .accel = FB_ACCEL_NONE,961};962 963static int ps3fb_probe(struct ps3_system_bus_device *dev)964{965 struct fb_info *info;966 struct ps3fb_par *par;967 int retval;968 u64 ddr_lpar = 0;969 u64 lpar_dma_control = 0;970 u64 lpar_driver_info = 0;971 u64 lpar_reports = 0;972 u64 lpar_reports_size = 0;973 u64 xdr_lpar;974 struct gpu_driver_info *dinfo;975 void *fb_start;976 int status;977 struct task_struct *task;978 unsigned long max_ps3fb_size;979 980 if (ps3fb_videomemory.size < GPU_CMD_BUF_SIZE) {981 dev_err(&dev->core, "%s: Not enough video memory\n", __func__);982 return -ENOMEM;983 }984 985 retval = ps3_open_hv_device(dev);986 if (retval) {987 dev_err(&dev->core, "%s: ps3_open_hv_device failed\n",988 __func__);989 goto err;990 }991 992 if (!ps3fb_mode)993 ps3fb_mode = ps3av_get_mode();994 dev_dbg(&dev->core, "ps3fb_mode: %d\n", ps3fb_mode);995 996 atomic_set(&ps3fb.f_count, -1); /* fbcon opens ps3fb */997 atomic_set(&ps3fb.ext_flip, 0); /* for flip with vsync */998 init_waitqueue_head(&ps3fb.wait_vsync);999 1000#ifdef HEAD_A1001 status = lv1_gpu_display_sync(0x0, 0, L1GPU_DISPLAY_SYNC_VSYNC);1002 if (status) {1003 dev_err(&dev->core, "%s: lv1_gpu_display_sync failed: %d\n",1004 __func__, status);1005 retval = -ENODEV;1006 goto err_close_device;1007 }1008#endif1009#ifdef HEAD_B1010 status = lv1_gpu_display_sync(0x0, 1, L1GPU_DISPLAY_SYNC_VSYNC);1011 if (status) {1012 dev_err(&dev->core, "%s: lv1_gpu_display_sync failed: %d\n",1013 __func__, status);1014 retval = -ENODEV;1015 goto err_close_device;1016 }1017#endif1018 1019 max_ps3fb_size = ALIGN(GPU_IOIF, 256*1024*1024) - GPU_IOIF;1020 if (ps3fb_videomemory.size > max_ps3fb_size) {1021 dev_info(&dev->core, "Limiting ps3fb mem size to %lu bytes\n",1022 max_ps3fb_size);1023 ps3fb_videomemory.size = max_ps3fb_size;1024 }1025 1026 /* get gpu context handle */1027 status = lv1_gpu_memory_allocate(ps3fb_videomemory.size, 0, 0, 0, 0,1028 &ps3fb.memory_handle, &ddr_lpar);1029 if (status) {1030 dev_err(&dev->core, "%s: lv1_gpu_memory_allocate failed: %d\n",1031 __func__, status);1032 retval = -ENOMEM;1033 goto err_close_device;1034 }1035 dev_dbg(&dev->core, "ddr:lpar:0x%llx\n", ddr_lpar);1036 1037 status = lv1_gpu_context_allocate(ps3fb.memory_handle, 0,1038 &ps3fb.context_handle,1039 &lpar_dma_control, &lpar_driver_info,1040 &lpar_reports, &lpar_reports_size);1041 if (status) {1042 dev_err(&dev->core,1043 "%s: lv1_gpu_context_allocate failed: %d\n", __func__,1044 status);1045 retval = -ENOMEM;1046 goto err_gpu_memory_free;1047 }1048 1049 /* vsync interrupt */1050 dinfo = (void __force *)ioremap(lpar_driver_info, 128 * 1024);1051 if (!dinfo) {1052 dev_err(&dev->core, "%s: ioremap failed\n", __func__);1053 retval = -ENOMEM;1054 goto err_gpu_context_free;1055 }1056 1057 ps3fb.dinfo = dinfo;1058 dev_dbg(&dev->core, "version_driver:%x\n", dinfo->version_driver);1059 dev_dbg(&dev->core, "irq outlet:%x\n", dinfo->irq.irq_outlet);1060 dev_dbg(&dev->core, "version_gpu: %x memory_size: %x ch: %x "1061 "core_freq: %d mem_freq:%d\n", dinfo->version_gpu,1062 dinfo->memory_size, dinfo->hardware_channel,1063 dinfo->nvcore_frequency/1000000,1064 dinfo->memory_frequency/1000000);1065 1066 if (dinfo->version_driver != GPU_DRIVER_INFO_VERSION) {1067 dev_err(&dev->core, "%s: version_driver err:%x\n", __func__,1068 dinfo->version_driver);1069 retval = -EINVAL;1070 goto err_iounmap_dinfo;1071 }1072 1073 retval = ps3_irq_plug_setup(PS3_BINDING_CPU_ANY, dinfo->irq.irq_outlet,1074 &ps3fb.irq_no);1075 if (retval) {1076 dev_err(&dev->core, "%s: ps3_alloc_irq failed %d\n", __func__,1077 retval);1078 goto err_iounmap_dinfo;1079 }1080 1081 retval = request_irq(ps3fb.irq_no, ps3fb_vsync_interrupt,1082 0, DEVICE_NAME, &dev->core);1083 if (retval) {1084 dev_err(&dev->core, "%s: request_irq failed %d\n", __func__,1085 retval);1086 goto err_destroy_plug;1087 }1088 1089 dinfo->irq.mask = (1 << GPU_INTR_STATUS_VSYNC_1) |1090 (1 << GPU_INTR_STATUS_FLIP_1);1091 1092 /* Clear memory to prevent kernel info leakage into userspace */1093 memset(ps3fb_videomemory.address, 0, ps3fb_videomemory.size);1094 1095 xdr_lpar = ps3_mm_phys_to_lpar(__pa(ps3fb_videomemory.address));1096 1097 status = lv1_gpu_context_iomap(ps3fb.context_handle, GPU_IOIF,1098 xdr_lpar, ps3fb_videomemory.size,1099 CBE_IOPTE_PP_W | CBE_IOPTE_PP_R |1100 CBE_IOPTE_M);1101 if (status) {1102 dev_err(&dev->core, "%s: lv1_gpu_context_iomap failed: %d\n",1103 __func__, status);1104 retval = -ENXIO;1105 goto err_free_irq;1106 }1107 1108 dev_dbg(&dev->core, "video:%p ioif:%lx lpar:%llx size:%lx\n",1109 ps3fb_videomemory.address, GPU_IOIF, xdr_lpar,1110 ps3fb_videomemory.size);1111 1112 status = lv1_gpu_fb_setup(ps3fb.context_handle, xdr_lpar,1113 GPU_CMD_BUF_SIZE, GPU_IOIF);1114 if (status) {1115 dev_err(&dev->core, "%s: lv1_gpu_fb_setup failed: %d\n",1116 __func__, status);1117 retval = -ENXIO;1118 goto err_context_unmap;1119 }1120 1121 info = framebuffer_alloc(sizeof(struct ps3fb_par), &dev->core);1122 if (!info) {1123 retval = -ENOMEM;1124 goto err_context_fb_close;1125 }1126 1127 par = info->par;1128 par->mode_id = ~ps3fb_mode; /* != ps3fb_mode, to trigger change */1129 par->new_mode_id = ps3fb_mode;1130 par->num_frames = 1;1131 1132 info->fbops = &ps3fb_ops;1133 info->fix = ps3fb_fix;1134 1135 /*1136 * The GPU command buffer is at the start of video memory1137 * As we don't use the full command buffer, we can put the actual1138 * frame buffer at offset GPU_FB_START and save some precious XDR1139 * memory1140 */1141 fb_start = ps3fb_videomemory.address + GPU_FB_START;1142 info->screen_buffer = fb_start;1143 info->fix.smem_start = __pa(fb_start);1144 info->fix.smem_len = ps3fb_videomemory.size - GPU_FB_START;1145 1146 info->pseudo_palette = par->pseudo_palette;1147 info->flags = FBINFO_VIRTFB | FBINFO_READS_FAST |1148 FBINFO_HWACCEL_XPAN | FBINFO_HWACCEL_YPAN;1149 1150 retval = fb_alloc_cmap(&info->cmap, 256, 0);1151 if (retval < 0)1152 goto err_framebuffer_release;1153 1154 if (!fb_find_mode(&info->var, info, mode_option, ps3fb_modedb,1155 ARRAY_SIZE(ps3fb_modedb),1156 ps3fb_vmode(par->new_mode_id), 32)) {1157 retval = -EINVAL;1158 goto err_fb_dealloc;1159 }1160 1161 fb_videomode_to_modelist(ps3fb_modedb, ARRAY_SIZE(ps3fb_modedb),1162 &info->modelist);1163 1164 retval = register_framebuffer(info);1165 if (retval < 0)1166 goto err_fb_dealloc;1167 1168 ps3_system_bus_set_drvdata(dev, info);1169 1170 fb_info(info, "using %u KiB of video memory\n", info->fix.smem_len >> 10);1171 1172 task = kthread_run(ps3fbd, info, DEVICE_NAME);1173 if (IS_ERR(task)) {1174 retval = PTR_ERR(task);1175 goto err_unregister_framebuffer;1176 }1177 1178 ps3fb.task = task;1179 1180 return 0;1181 1182err_unregister_framebuffer:1183 unregister_framebuffer(info);1184err_fb_dealloc:1185 fb_dealloc_cmap(&info->cmap);1186err_framebuffer_release:1187 framebuffer_release(info);1188err_context_fb_close:1189 lv1_gpu_fb_close(ps3fb.context_handle);1190err_context_unmap:1191 lv1_gpu_context_iomap(ps3fb.context_handle, GPU_IOIF, xdr_lpar,1192 ps3fb_videomemory.size, CBE_IOPTE_M);1193err_free_irq:1194 free_irq(ps3fb.irq_no, &dev->core);1195err_destroy_plug:1196 ps3_irq_plug_destroy(ps3fb.irq_no);1197err_iounmap_dinfo:1198 iounmap((u8 __force __iomem *)ps3fb.dinfo);1199err_gpu_context_free:1200 lv1_gpu_context_free(ps3fb.context_handle);1201err_gpu_memory_free:1202 lv1_gpu_memory_free(ps3fb.memory_handle);1203err_close_device:1204 ps3_close_hv_device(dev);1205err:1206 return retval;1207}1208 1209static void ps3fb_shutdown(struct ps3_system_bus_device *dev)1210{1211 struct fb_info *info = ps3_system_bus_get_drvdata(dev);1212 u64 xdr_lpar = ps3_mm_phys_to_lpar(__pa(ps3fb_videomemory.address));1213 1214 dev_dbg(&dev->core, " -> %s:%d\n", __func__, __LINE__);1215 1216 atomic_inc(&ps3fb.ext_flip); /* flip off */1217 ps3fb.dinfo->irq.mask = 0;1218 1219 if (ps3fb.task) {1220 struct task_struct *task = ps3fb.task;1221 ps3fb.task = NULL;1222 kthread_stop(task);1223 }1224 if (ps3fb.irq_no) {1225 free_irq(ps3fb.irq_no, &dev->core);1226 ps3_irq_plug_destroy(ps3fb.irq_no);1227 }1228 if (info) {1229 unregister_framebuffer(info);1230 fb_dealloc_cmap(&info->cmap);1231 framebuffer_release(info);1232 ps3_system_bus_set_drvdata(dev, NULL);1233 }1234 iounmap((u8 __force __iomem *)ps3fb.dinfo);1235 lv1_gpu_fb_close(ps3fb.context_handle);1236 lv1_gpu_context_iomap(ps3fb.context_handle, GPU_IOIF, xdr_lpar,1237 ps3fb_videomemory.size, CBE_IOPTE_M);1238 lv1_gpu_context_free(ps3fb.context_handle);1239 lv1_gpu_memory_free(ps3fb.memory_handle);1240 ps3_close_hv_device(dev);1241 dev_dbg(&dev->core, " <- %s:%d\n", __func__, __LINE__);1242}1243 1244static struct ps3_system_bus_driver ps3fb_driver = {1245 .match_id = PS3_MATCH_ID_GPU,1246 .match_sub_id = PS3_MATCH_SUB_ID_GPU_FB,1247 .core.name = DEVICE_NAME,1248 .core.owner = THIS_MODULE,1249 .probe = ps3fb_probe,1250 .remove = ps3fb_shutdown,1251 .shutdown = ps3fb_shutdown,1252};1253 1254static int __init ps3fb_setup(void)1255{1256 char *options;1257 1258#ifdef MODULE1259 return 0;1260#endif1261 1262 if (fb_get_options(DEVICE_NAME, &options))1263 return -ENXIO;1264 1265 if (!options || !*options)1266 return 0;1267 1268 while (1) {1269 char *this_opt = strsep(&options, ",");1270 1271 if (!this_opt)1272 break;1273 if (!*this_opt)1274 continue;1275 if (!strncmp(this_opt, "mode:", 5))1276 ps3fb_mode = simple_strtoul(this_opt + 5, NULL, 0);1277 else1278 mode_option = this_opt;1279 }1280 return 0;1281}1282 1283static int __init ps3fb_init(void)1284{1285 if (!ps3fb_videomemory.address || ps3fb_setup())1286 return -ENXIO;1287 1288 return ps3_system_bus_driver_register(&ps3fb_driver);1289}1290 1291static void __exit ps3fb_exit(void)1292{1293 pr_debug(" -> %s:%d\n", __func__, __LINE__);1294 ps3_system_bus_driver_unregister(&ps3fb_driver);1295 pr_debug(" <- %s:%d\n", __func__, __LINE__);1296}1297 1298module_init(ps3fb_init);1299module_exit(ps3fb_exit);1300 1301MODULE_LICENSE("GPL");1302MODULE_DESCRIPTION("PS3 GPU Frame Buffer Driver");1303MODULE_AUTHOR("Sony Computer Entertainment Inc.");1304MODULE_ALIAS(PS3_MODULE_ALIAS_GPU_FB);1305