drivers/video/via/accel.c

   1 /*
   2  * Copyright 1998-2008 VIA Technologies, Inc. All Rights Reserved.
   3  * Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved.
   4
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public
   7  * License as published by the Free Software Foundation;
   8  * either version 2, or (at your option) any later version.
   9
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTIES OR REPRESENTATIONS; without even
  12  * the implied warranty of MERCHANTABILITY or FITNESS FOR
  13  * A PARTICULAR PURPOSE.See the GNU General Public License
  14  * for more details.
  15
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc.,
  19  * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  20  */
  21 #include "global.h"
  22
  23 static int hw_bitblt_1(void __iomem *engine, u8 op, u32 width, u32 height,
  24         u8 dst_bpp, u32 dst_addr, u32 dst_pitch, u32 dst_x, u32 dst_y,
  25         u32 *src_mem, u32 src_addr, u32 src_pitch, u32 src_x, u32 src_y,
  26         u32 fg_color, u32 bg_color, u8 fill_rop)
  27 {
  28         u32 ge_cmd = 0, tmp, i;
  29
  30         if (!op || op > 3) {
  31                 printk(KERN_WARNING "hw_bitblt_1: Invalid operation: %d\n", op);
  32                 return -EINVAL;
  33         }
  34
  35         if (op != VIA_BITBLT_FILL && !src_mem && src_addr == dst_addr) {
  36                 if (src_x < dst_x) {
  37                         ge_cmd |= 0x00008000;
  38                         src_x += width - 1;
  39                         dst_x += width - 1;
  40                 }
  41                 if (src_y < dst_y) {
  42                         ge_cmd |= 0x00004000;
  43                         src_y += height - 1;
  44                         dst_y += height - 1;
  45                 }
  46         }
  47
  48         if (op == VIA_BITBLT_FILL) {
  49                 switch (fill_rop) {
  50                 case 0x00: /* blackness */
  51                 case 0x5A: /* pattern inversion */
  52                 case 0xF0: /* pattern copy */
  53                 case 0xFF: /* whiteness */
  54                         break;
  55                 default:
  56                         printk(KERN_WARNING "hw_bitblt_1: Invalid fill rop: "
  57                                 "%u\n", fill_rop);
  58                         return -EINVAL;
  59                 }
  60         }
  61
  62         switch (dst_bpp) {
  63         case 8:
  64                 tmp = 0x00000000;
  65                 break;
  66         case 16:
  67                 tmp = 0x00000100;
  68                 break;
  69         case 32:
  70                 tmp = 0x00000300;
  71                 break;
  72         default:
  73                 printk(KERN_WARNING "hw_bitblt_1: Unsupported bpp %d\n",
  74                         dst_bpp);
  75                 return -EINVAL;
  76         }
  77         writel(tmp, engine + 0x04);
  78
  79         if (op != VIA_BITBLT_FILL) {
  80                 if (src_x & (op == VIA_BITBLT_MONO ? 0xFFFF8000 : 0xFFFFF000)
  81                         || src_y & 0xFFFFF000) {
  82                         printk(KERN_WARNING "hw_bitblt_1: Unsupported source "
  83                                 "x/y %d %d\n", src_x, src_y);
  84                         return -EINVAL;
  85                 }
  86                 tmp = src_x | (src_y << 16);
  87                 writel(tmp, engine + 0x08);
  88         }
  89
  90         if (dst_x & 0xFFFFF000 || dst_y & 0xFFFFF000) {
  91                 printk(KERN_WARNING "hw_bitblt_1: Unsupported destination x/y "
  92                         "%d %d\n", dst_x, dst_y);
  93                 return -EINVAL;
  94         }
  95         tmp = dst_x | (dst_y << 16);
  96         writel(tmp, engine + 0x0C);
  97
  98         if ((width - 1) & 0xFFFFF000 || (height - 1) & 0xFFFFF000) {
  99                 printk(KERN_WARNING "hw_bitblt_1: Unsupported width/height "
 100                         "%d %d\n", width, height);
 101                 return -EINVAL;
 102         }
 103         tmp = (width - 1) | ((height - 1) << 16);
 104         writel(tmp, engine + 0x10);
 105
 106         if (op != VIA_BITBLT_COLOR)
 107                 writel(fg_color, engine + 0x18);
 108
 109         if (op == VIA_BITBLT_MONO)
 110                 writel(bg_color, engine + 0x1C);
 111
 112         if (op != VIA_BITBLT_FILL) {
 113                 tmp = src_mem ? 0 : src_addr;
 114                 if (dst_addr & 0xE0000007) {
 115                         printk(KERN_WARNING "hw_bitblt_1: Unsupported source "
 116                                 "address %X\n", tmp);
 117                         return -EINVAL;
 118                 }
 119                 tmp >>= 3;
 120                 writel(tmp, engine + 0x30);
 121         }
 122
 123         if (dst_addr & 0xE0000007) {
 124                 printk(KERN_WARNING "hw_bitblt_1: Unsupported destination "
 125                         "address %X\n", dst_addr);
 126                 return -EINVAL;
 127         }
 128         tmp = dst_addr >> 3;
 129         writel(tmp, engine + 0x34);
 130
 131         if (op == VIA_BITBLT_FILL)
 132                 tmp = 0;
 133         else
 134                 tmp = src_pitch;
 135         if (tmp & 0xFFFFC007 || dst_pitch & 0xFFFFC007) {
 136                 printk(KERN_WARNING "hw_bitblt_1: Unsupported pitch %X %X\n",
 137                         tmp, dst_pitch);
 138                 return -EINVAL;
 139         }
 140         tmp = (tmp >> 3) | (dst_pitch << (16 - 3));
 141         writel(tmp, engine + 0x38);
 142
 143         if (op == VIA_BITBLT_FILL)
 144                 ge_cmd |= fill_rop << 24 | 0x00002000 | 0x00000001;
 145         else {
 146                 ge_cmd |= 0xCC000000; /* ROP=SRCCOPY */
 147                 if (src_mem)
 148                         ge_cmd |= 0x00000040;
 149                 if (op == VIA_BITBLT_MONO)
 150                         ge_cmd |= 0x00000002 | 0x00000100 | 0x00020000;
 151                 else
 152                         ge_cmd |= 0x00000001;
 153         }
 154         writel(ge_cmd, engine);
 155
 156         if (op == VIA_BITBLT_FILL || !src_mem)
 157                 return 0;
 158
 159         tmp = (width * height * (op == VIA_BITBLT_MONO ? 1 : (dst_bpp >> 3)) +
 160                 3) >> 2;
 161
 162         for (i = 0; i < tmp; i++)
 163                 writel(src_mem[i], engine + VIA_MMIO_BLTBASE);
 164
 165         return 0;
 166 }
 167
 168 static int hw_bitblt_2(void __iomem *engine, u8 op, u32 width, u32 height,
 169         u8 dst_bpp, u32 dst_addr, u32 dst_pitch, u32 dst_x, u32 dst_y,
 170         u32 *src_mem, u32 src_addr, u32 src_pitch, u32 src_x, u32 src_y,
 171         u32 fg_color, u32 bg_color, u8 fill_rop)
 172 {
 173         u32 ge_cmd = 0, tmp, i;
 174
 175         if (!op || op > 3) {
 176                 printk(KERN_WARNING "hw_bitblt_2: Invalid operation: %d\n", op);
 177                 return -EINVAL;
 178         }
 179
 180         if (op != VIA_BITBLT_FILL && !src_mem && src_addr == dst_addr) {
 181                 if (src_x < dst_x) {
 182                         ge_cmd |= 0x00008000;
 183                         src_x += width - 1;
 184                         dst_x += width - 1;
 185                 }
 186                 if (src_y < dst_y) {
 187                         ge_cmd |= 0x00004000;
 188                         src_y += height - 1;
 189                         dst_y += height - 1;
 190                 }
 191         }
 192
 193         if (op == VIA_BITBLT_FILL) {
 194                 switch (fill_rop) {
 195                 case 0x00: /* blackness */
 196                 case 0x5A: /* pattern inversion */
 197                 case 0xF0: /* pattern copy */
 198                 case 0xFF: /* whiteness */
 199                         break;
 200                 default:
 201                         printk(KERN_WARNING "hw_bitblt_2: Invalid fill rop: "
 202                                 "%u\n", fill_rop);
 203                         return -EINVAL;
 204                 }
 205         }
 206
 207         switch (dst_bpp) {
 208         case 8:
 209                 tmp = 0x00000000;
 210                 break;
 211         case 16:
 212                 tmp = 0x00000100;
 213                 break;
 214         case 32:
 215                 tmp = 0x00000300;
 216                 break;
 217         default:
 218                 printk(KERN_WARNING "hw_bitblt_2: Unsupported bpp %d\n",
 219                         dst_bpp);
 220                 return -EINVAL;
 221         }
 222         writel(tmp, engine + 0x04);
 223
 224         if (op == VIA_BITBLT_FILL)
 225                 tmp = 0;
 226         else
 227                 tmp = src_pitch;
 228         if (tmp & 0xFFFFC007 || dst_pitch & 0xFFFFC007) {
 229                 printk(KERN_WARNING "hw_bitblt_2: Unsupported pitch %X %X\n",
 230                         tmp, dst_pitch);
 231                 return -EINVAL;
 232         }
 233         tmp = (tmp >> 3) | (dst_pitch << (16 - 3));
 234         writel(tmp, engine + 0x08);
 235
 236         if ((width - 1) & 0xFFFFF000 || (height - 1) & 0xFFFFF000) {
 237                 printk(KERN_WARNING "hw_bitblt_2: Unsupported width/height "
 238                         "%d %d\n", width, height);
 239                 return -EINVAL;
 240         }
 241         tmp = (width - 1) | ((height - 1) << 16);
 242         writel(tmp, engine + 0x0C);
 243
 244         if (dst_x & 0xFFFFF000 || dst_y & 0xFFFFF000) {
 245                 printk(KERN_WARNING "hw_bitblt_2: Unsupported destination x/y "
 246                         "%d %d\n", dst_x, dst_y);
 247                 return -EINVAL;
 248         }
 249         tmp = dst_x | (dst_y << 16);
 250         writel(tmp, engine + 0x10);
 251
 252         if (dst_addr & 0xE0000007) {
 253                 printk(KERN_WARNING "hw_bitblt_2: Unsupported destination "
 254                         "address %X\n", dst_addr);
 255                 return -EINVAL;
 256         }
 257         tmp = dst_addr >> 3;
 258         writel(tmp, engine + 0x14);
 259
 260         if (op != VIA_BITBLT_FILL) {
 261                 if (src_x & (op == VIA_BITBLT_MONO ? 0xFFFF8000 : 0xFFFFF000)
 262                         || src_y & 0xFFFFF000) {
 263                         printk(KERN_WARNING "hw_bitblt_2: Unsupported source "
 264                                 "x/y %d %d\n", src_x, src_y);
 265                         return -EINVAL;
 266                 }
 267                 tmp = src_x | (src_y << 16);
 268                 writel(tmp, engine + 0x18);
 269
 270                 tmp = src_mem ? 0 : src_addr;
 271                 if (dst_addr & 0xE0000007) {
 272                         printk(KERN_WARNING "hw_bitblt_2: Unsupported source "
 273                                 "address %X\n", tmp);
 274                         return -EINVAL;
 275                 }
 276                 tmp >>= 3;
 277                 writel(tmp, engine + 0x1C);
 278         }
 279
 280         if (op != VIA_BITBLT_COLOR)
 281                 writel(fg_color, engine + 0x4C);
 282
 283         if (op == VIA_BITBLT_MONO)
 284                 writel(bg_color, engine + 0x50);
 285
 286         if (op == VIA_BITBLT_FILL)
 287                 ge_cmd |= fill_rop << 24 | 0x00002000 | 0x00000001;
 288         else {
 289                 ge_cmd |= 0xCC000000; /* ROP=SRCCOPY */
 290                 if (src_mem)
 291                         ge_cmd |= 0x00000040;
 292                 if (op == VIA_BITBLT_MONO)
 293                         ge_cmd |= 0x00000002 | 0x00000100 | 0x00020000;
 294                 else
 295                         ge_cmd |= 0x00000001;
 296         }
 297         writel(ge_cmd, engine);
 298
 299         if (op == VIA_BITBLT_FILL || !src_mem)
 300                 return 0;
 301
 302         tmp = (width * height * (op == VIA_BITBLT_MONO ? 1 : (dst_bpp >> 3)) +
 303                 3) >> 2;
 304
 305         for (i = 0; i < tmp; i++)
 306                 writel(src_mem[i], engine + VIA_MMIO_BLTBASE);
 307
 308         return 0;
 309 }
 310
 311 int viafb_init_engine(struct fb_info *info)
 312 {
 313         struct viafb_par *viapar = info->par;
 314         void __iomem *engine;
 315         u32 vq_start_addr, vq_end_addr, vq_start_low, vq_end_low, vq_high,
 316                 vq_len, chip_name = viapar->shared->chip_info.gfx_chip_name;
 317
 318         engine = ioremap_nocache(info->fix.mmio_start, info->fix.mmio_len);
 319         viapar->shared->engine_mmio = engine;
 320         if (!engine) {
 321                 printk(KERN_WARNING "viafb_init_accel: ioremap failed, "
 322                         "hardware acceleration disabled\n");
 323                 return -ENOMEM;
 324         }
 325
 326         switch (chip_name) {
 327         case UNICHROME_CLE266:
 328         case UNICHROME_K400:
 329         case UNICHROME_K800:
 330         case UNICHROME_PM800:
 331         case UNICHROME_CN700:
 332         case UNICHROME_CX700:
 333         case UNICHROME_CN750:
 334         case UNICHROME_K8M890:
 335         case UNICHROME_P4M890:
 336         case UNICHROME_P4M900:
 337                 viapar->shared->hw_bitblt = hw_bitblt_1;
 338                 break;
 339         case UNICHROME_VX800:
 340         case UNICHROME_VX855:
 341                 viapar->shared->hw_bitblt = hw_bitblt_2;
 342                 break;
 343         default:
 344                 viapar->shared->hw_bitblt = NULL;
 345         }
 346
 347         viapar->fbmem_free -= CURSOR_SIZE;
 348         viapar->shared->cursor_vram_addr = viapar->fbmem_free;
 349         viapar->fbmem_used += CURSOR_SIZE;
 350
 351         viapar->fbmem_free -= VQ_SIZE;
 352         viapar->shared->vq_vram_addr = viapar->fbmem_free;
 353         viapar->fbmem_used += VQ_SIZE;
 354
 355         /* Init AGP and VQ regs */
 356         switch (chip_name) {
 357         case UNICHROME_K8M890:
 358         case UNICHROME_P4M900:
 359                 writel(0x00100000, engine + VIA_REG_CR_TRANSET);
 360                 writel(0x680A0000, engine + VIA_REG_CR_TRANSPACE);
 361                 writel(0x02000000, engine + VIA_REG_CR_TRANSPACE);
 362                 break;
 363
 364         default:
 365                 writel(0x00100000, engine + VIA_REG_TRANSET);
 366                 writel(0x00000000, engine + VIA_REG_TRANSPACE);
 367                 writel(0x00333004, engine + VIA_REG_TRANSPACE);
 368                 writel(0x60000000, engine + VIA_REG_TRANSPACE);
 369                 writel(0x61000000, engine + VIA_REG_TRANSPACE);
 370                 writel(0x62000000, engine + VIA_REG_TRANSPACE);
 371                 writel(0x63000000, engine + VIA_REG_TRANSPACE);
 372                 writel(0x64000000, engine + VIA_REG_TRANSPACE);
 373                 writel(0x7D000000, engine + VIA_REG_TRANSPACE);
 374
 375                 writel(0xFE020000, engine + VIA_REG_TRANSET);
 376                 writel(0x00000000, engine + VIA_REG_TRANSPACE);
 377                 break;
 378         }
 379
 380         /* Enable VQ */
 381         vq_start_addr = viapar->shared->vq_vram_addr;
 382         vq_end_addr = viapar->shared->vq_vram_addr + VQ_SIZE - 1;
 383
 384         vq_start_low = 0x50000000 | (vq_start_addr & 0xFFFFFF);
 385         vq_end_low = 0x51000000 | (vq_end_addr & 0xFFFFFF);
 386         vq_high = 0x52000000 | ((vq_start_addr & 0xFF000000) >> 24) |
 387                 ((vq_end_addr & 0xFF000000) >> 16);
 388         vq_len = 0x53000000 | (VQ_SIZE >> 3);
 389
 390         switch (chip_name) {
 391         case UNICHROME_K8M890:
 392         case UNICHROME_P4M900:
 393                 vq_start_low |= 0x20000000;
 394                 vq_end_low |= 0x20000000;
 395                 vq_high |= 0x20000000;
 396                 vq_len |= 0x20000000;
 397
 398                 writel(0x00100000, engine + VIA_REG_CR_TRANSET);
 399                 writel(vq_high, engine + VIA_REG_CR_TRANSPACE);
 400                 writel(vq_start_low, engine + VIA_REG_CR_TRANSPACE);
 401                 writel(vq_end_low, engine + VIA_REG_CR_TRANSPACE);
 402                 writel(vq_len, engine + VIA_REG_CR_TRANSPACE);
 403                 writel(0x74301001, engine + VIA_REG_CR_TRANSPACE);
 404                 writel(0x00000000, engine + VIA_REG_CR_TRANSPACE);
 405                 break;
 406         default:
 407                 writel(0x00FE0000, engine + VIA_REG_TRANSET);
 408                 writel(0x080003FE, engine + VIA_REG_TRANSPACE);
 409                 writel(0x0A00027C, engine + VIA_REG_TRANSPACE);
 410                 writel(0x0B000260, engine + VIA_REG_TRANSPACE);
 411                 writel(0x0C000274, engine + VIA_REG_TRANSPACE);
 412                 writel(0x0D000264, engine + VIA_REG_TRANSPACE);
 413                 writel(0x0E000000, engine + VIA_REG_TRANSPACE);
 414                 writel(0x0F000020, engine + VIA_REG_TRANSPACE);
 415                 writel(0x1000027E, engine + VIA_REG_TRANSPACE);
 416                 writel(0x110002FE, engine + VIA_REG_TRANSPACE);
 417                 writel(0x200F0060, engine + VIA_REG_TRANSPACE);
 418
 419                 writel(0x00000006, engine + VIA_REG_TRANSPACE);
 420                 writel(0x40008C0F, engine + VIA_REG_TRANSPACE);
 421                 writel(0x44000000, engine + VIA_REG_TRANSPACE);
 422                 writel(0x45080C04, engine + VIA_REG_TRANSPACE);
 423                 writel(0x46800408, engine + VIA_REG_TRANSPACE);
 424
 425                 writel(vq_high, engine + VIA_REG_TRANSPACE);
 426                 writel(vq_start_low, engine + VIA_REG_TRANSPACE);
 427                 writel(vq_end_low, engine + VIA_REG_TRANSPACE);
 428                 writel(vq_len, engine + VIA_REG_TRANSPACE);
 429                 break;
 430         }
 431
 432         /* Set Cursor Image Base Address */
 433         writel(viapar->shared->cursor_vram_addr, engine + VIA_REG_CURSOR_MODE);
 434         writel(0x0, engine + VIA_REG_CURSOR_POS);
 435         writel(0x0, engine + VIA_REG_CURSOR_ORG);
 436         writel(0x0, engine + VIA_REG_CURSOR_BG);
 437         writel(0x0, engine + VIA_REG_CURSOR_FG);
 438         return 0;
 439 }
 440
 441 void viafb_show_hw_cursor(struct fb_info *info, int Status)
 442 {
 443         struct viafb_par *viapar = info->par;
 444         u32 temp, iga_path = viapar->iga_path;
 445
 446         temp = readl(viapar->shared->engine_mmio + VIA_REG_CURSOR_MODE);
 447         switch (Status) {
 448         case HW_Cursor_ON:
 449                 temp |= 0x1;
 450                 break;
 451         case HW_Cursor_OFF:
 452                 temp &= 0xFFFFFFFE;
 453                 break;
 454         }
 455         switch (iga_path) {
 456         case IGA2:
 457                 temp |= 0x80000000;
 458                 break;
 459         case IGA1:
 460         default:
 461                 temp &= 0x7FFFFFFF;
 462         }
 463         writel(temp, viapar->shared->engine_mmio + VIA_REG_CURSOR_MODE);
 464 }
 465
 466 void viafb_wait_engine_idle(struct fb_info *info)
 467 {
 468         struct viafb_par *viapar = info->par;
 469         int loop = 0;
 470
 471         while (!(readl(viapar->shared->engine_mmio + VIA_REG_STATUS) &
 472                         VIA_VR_QUEUE_BUSY) && (loop < MAXLOOP)) {
 473                 loop++;
 474                 cpu_relax();
 475         }
 476
 477         while ((readl(viapar->shared->engine_mmio + VIA_REG_STATUS) &
 478                     (VIA_CMD_RGTR_BUSY | VIA_2D_ENG_BUSY | VIA_3D_ENG_BUSY)) &&
 479                     (loop < MAXLOOP)) {
 480                 loop++;
 481                 cpu_relax();
 482         }
 483
 484         if (loop >= MAXLOOP)
 485                 printk(KERN_ERR "viafb_wait_engine_idle: not syncing\n");
 486 }