drivers/gpu/drm/radeon/rv515.c

   1 /*
   2  * Copyright 2008 Advanced Micro Devices, Inc.
   3  * Copyright 2008 Red Hat Inc.
   4  * Copyright 2009 Jerome Glisse.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  22  * OTHER DEALINGS IN THE SOFTWARE.
  23  *
  24  * Authors: Dave Airlie
  25  *          Alex Deucher
  26  *          Jerome Glisse
  27  */
  28 #include <linux/seq_file.h>
  29 #include <linux/slab.h>
  30 #include <drm/drmP.h>
  31 #include "rv515d.h"
  32 #include "radeon.h"
  33 #include "radeon_asic.h"
  34 #include "atom.h"
  35 #include "rv515_reg_safe.h"
  36
  37 /* This files gather functions specifics to: rv515 */
  38 static int rv515_debugfs_pipes_info_init(struct radeon_device *rdev);
  39 static int rv515_debugfs_ga_info_init(struct radeon_device *rdev);
  40 static void rv515_gpu_init(struct radeon_device *rdev);
  41 int rv515_mc_wait_for_idle(struct radeon_device *rdev);
  42
  43 static const u32 crtc_offsets[2] =
  44 {
  45         0,
  46         AVIVO_D2CRTC_H_TOTAL - AVIVO_D1CRTC_H_TOTAL
  47 };
  48
  49 void rv515_debugfs(struct radeon_device *rdev)
  50 {
  51         if (r100_debugfs_rbbm_init(rdev)) {
  52                 DRM_ERROR("Failed to register debugfs file for RBBM !\n");
  53         }
  54         if (rv515_debugfs_pipes_info_init(rdev)) {
  55                 DRM_ERROR("Failed to register debugfs file for pipes !\n");
  56         }
  57         if (rv515_debugfs_ga_info_init(rdev)) {
  58                 DRM_ERROR("Failed to register debugfs file for pipes !\n");
  59         }
  60 }
  61
  62 void rv515_ring_start(struct radeon_device *rdev, struct radeon_ring *ring)
  63 {
  64         int r;
  65
  66         r = radeon_ring_lock(rdev, ring, 64);
  67         if (r) {
  68                 return;
  69         }
  70         radeon_ring_write(ring, PACKET0(ISYNC_CNTL, 0));
  71         radeon_ring_write(ring,
  72                           ISYNC_ANY2D_IDLE3D |
  73                           ISYNC_ANY3D_IDLE2D |
  74                           ISYNC_WAIT_IDLEGUI |
  75                           ISYNC_CPSCRATCH_IDLEGUI);
  76         radeon_ring_write(ring, PACKET0(WAIT_UNTIL, 0));
  77         radeon_ring_write(ring, WAIT_2D_IDLECLEAN | WAIT_3D_IDLECLEAN);
  78         radeon_ring_write(ring, PACKET0(R300_DST_PIPE_CONFIG, 0));
  79         radeon_ring_write(ring, R300_PIPE_AUTO_CONFIG);
  80         radeon_ring_write(ring, PACKET0(GB_SELECT, 0));
  81         radeon_ring_write(ring, 0);
  82         radeon_ring_write(ring, PACKET0(GB_ENABLE, 0));
  83         radeon_ring_write(ring, 0);
  84         radeon_ring_write(ring, PACKET0(R500_SU_REG_DEST, 0));
  85         radeon_ring_write(ring, (1 << rdev->num_gb_pipes) - 1);
  86         radeon_ring_write(ring, PACKET0(VAP_INDEX_OFFSET, 0));
  87         radeon_ring_write(ring, 0);
  88         radeon_ring_write(ring, PACKET0(RB3D_DSTCACHE_CTLSTAT, 0));
  89         radeon_ring_write(ring, RB3D_DC_FLUSH | RB3D_DC_FREE);
  90         radeon_ring_write(ring, PACKET0(ZB_ZCACHE_CTLSTAT, 0));
  91         radeon_ring_write(ring, ZC_FLUSH | ZC_FREE);
  92         radeon_ring_write(ring, PACKET0(WAIT_UNTIL, 0));
  93         radeon_ring_write(ring, WAIT_2D_IDLECLEAN | WAIT_3D_IDLECLEAN);
  94         radeon_ring_write(ring, PACKET0(GB_AA_CONFIG, 0));
  95         radeon_ring_write(ring, 0);
  96         radeon_ring_write(ring, PACKET0(RB3D_DSTCACHE_CTLSTAT, 0));
  97         radeon_ring_write(ring, RB3D_DC_FLUSH | RB3D_DC_FREE);
  98         radeon_ring_write(ring, PACKET0(ZB_ZCACHE_CTLSTAT, 0));
  99         radeon_ring_write(ring, ZC_FLUSH | ZC_FREE);
 100         radeon_ring_write(ring, PACKET0(GB_MSPOS0, 0));
 101         radeon_ring_write(ring,
 102                           ((6 << MS_X0_SHIFT) |
 103                            (6 << MS_Y0_SHIFT) |
 104                            (6 << MS_X1_SHIFT) |
 105                            (6 << MS_Y1_SHIFT) |
 106                            (6 << MS_X2_SHIFT) |
 107                            (6 << MS_Y2_SHIFT) |
 108                            (6 << MSBD0_Y_SHIFT) |
 109                            (6 << MSBD0_X_SHIFT)));
 110         radeon_ring_write(ring, PACKET0(GB_MSPOS1, 0));
 111         radeon_ring_write(ring,
 112                           ((6 << MS_X3_SHIFT) |
 113                            (6 << MS_Y3_SHIFT) |
 114                            (6 << MS_X4_SHIFT) |
 115                            (6 << MS_Y4_SHIFT) |
 116                            (6 << MS_X5_SHIFT) |
 117                            (6 << MS_Y5_SHIFT) |
 118                            (6 << MSBD1_SHIFT)));
 119         radeon_ring_write(ring, PACKET0(GA_ENHANCE, 0));
 120         radeon_ring_write(ring, GA_DEADLOCK_CNTL | GA_FASTSYNC_CNTL);
 121         radeon_ring_write(ring, PACKET0(GA_POLY_MODE, 0));
 122         radeon_ring_write(ring, FRONT_PTYPE_TRIANGE | BACK_PTYPE_TRIANGE);
 123         radeon_ring_write(ring, PACKET0(GA_ROUND_MODE, 0));
 124         radeon_ring_write(ring, GEOMETRY_ROUND_NEAREST | COLOR_ROUND_NEAREST);
 125         radeon_ring_write(ring, PACKET0(0x20C8, 0));
 126         radeon_ring_write(ring, 0);
 127         radeon_ring_unlock_commit(rdev, ring);
 128 }
 129
 130 int rv515_mc_wait_for_idle(struct radeon_device *rdev)
 131 {
 132         unsigned i;
 133         uint32_t tmp;
 134
 135         for (i = 0; i < rdev->usec_timeout; i++) {
 136                 /* read MC_STATUS */
 137                 tmp = RREG32_MC(MC_STATUS);
 138                 if (tmp & MC_STATUS_IDLE) {
 139                         return 0;
 140                 }
 141                 DRM_UDELAY(1);
 142         }
 143         return -1;
 144 }
 145
 146 void rv515_vga_render_disable(struct radeon_device *rdev)
 147 {
 148         WREG32(R_000300_VGA_RENDER_CONTROL,
 149                 RREG32(R_000300_VGA_RENDER_CONTROL) & C_000300_VGA_VSTATUS_CNTL);
 150 }
 151
 152 static void rv515_gpu_init(struct radeon_device *rdev)
 153 {
 154         unsigned pipe_select_current, gb_pipe_select, tmp;
 155
 156         if (r100_gui_wait_for_idle(rdev)) {
 157                 printk(KERN_WARNING "Failed to wait GUI idle while "
 158                        "resetting GPU. Bad things might happen.\n");
 159         }
 160         rv515_vga_render_disable(rdev);
 161         r420_pipes_init(rdev);
 162         gb_pipe_select = RREG32(R400_GB_PIPE_SELECT);
 163         tmp = RREG32(R300_DST_PIPE_CONFIG);
 164         pipe_select_current = (tmp >> 2) & 3;
 165         tmp = (1 << pipe_select_current) |
 166               (((gb_pipe_select >> 8) & 0xF) << 4);
 167         WREG32_PLL(0x000D, tmp);
 168         if (r100_gui_wait_for_idle(rdev)) {
 169                 printk(KERN_WARNING "Failed to wait GUI idle while "
 170                        "resetting GPU. Bad things might happen.\n");
 171         }
 172         if (rv515_mc_wait_for_idle(rdev)) {
 173                 printk(KERN_WARNING "Failed to wait MC idle while "
 174                        "programming pipes. Bad things might happen.\n");
 175         }
 176 }
 177
 178 static void rv515_vram_get_type(struct radeon_device *rdev)
 179 {
 180         uint32_t tmp;
 181
 182         rdev->mc.vram_width = 128;
 183         rdev->mc.vram_is_ddr = true;
 184         tmp = RREG32_MC(RV515_MC_CNTL) & MEM_NUM_CHANNELS_MASK;
 185         switch (tmp) {
 186         case 0:
 187                 rdev->mc.vram_width = 64;
 188                 break;
 189         case 1:
 190                 rdev->mc.vram_width = 128;
 191                 break;
 192         default:
 193                 rdev->mc.vram_width = 128;
 194                 break;
 195         }
 196 }
 197
 198 static void rv515_mc_init(struct radeon_device *rdev)
 199 {
 200
 201         rv515_vram_get_type(rdev);
 202         r100_vram_init_sizes(rdev);
 203         radeon_vram_location(rdev, &rdev->mc, 0);
 204         rdev->mc.gtt_base_align = 0;
 205         if (!(rdev->flags & RADEON_IS_AGP))
 206                 radeon_gtt_location(rdev, &rdev->mc);
 207         radeon_update_bandwidth_info(rdev);
 208 }
 209
 210 uint32_t rv515_mc_rreg(struct radeon_device *rdev, uint32_t reg)
 211 {
 212         unsigned long flags;
 213         uint32_t r;
 214
 215         spin_lock_irqsave(&rdev->mc_idx_lock, flags);
 216         WREG32(MC_IND_INDEX, 0x7f0000 | (reg & 0xffff));
 217         r = RREG32(MC_IND_DATA);
 218         WREG32(MC_IND_INDEX, 0);
 219         spin_unlock_irqrestore(&rdev->mc_idx_lock, flags);
 220
 221         return r;
 222 }
 223
 224 void rv515_mc_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v)
 225 {
 226         unsigned long flags;
 227
 228         spin_lock_irqsave(&rdev->mc_idx_lock, flags);
 229         WREG32(MC_IND_INDEX, 0xff0000 | ((reg) & 0xffff));
 230         WREG32(MC_IND_DATA, (v));
 231         WREG32(MC_IND_INDEX, 0);
 232         spin_unlock_irqrestore(&rdev->mc_idx_lock, flags);
 233 }
 234
 235 #if defined(CONFIG_DEBUG_FS)
 236 static int rv515_debugfs_pipes_info(struct seq_file *m, void *data)
 237 {
 238         struct drm_info_node *node = (struct drm_info_node *) m->private;
 239         struct drm_device *dev = node->minor->dev;
 240         struct radeon_device *rdev = dev->dev_private;
 241         uint32_t tmp;
 242
 243         tmp = RREG32(GB_PIPE_SELECT);
 244         seq_printf(m, "GB_PIPE_SELECT 0x%08x\n", tmp);
 245         tmp = RREG32(SU_REG_DEST);
 246         seq_printf(m, "SU_REG_DEST 0x%08x\n", tmp);
 247         tmp = RREG32(GB_TILE_CONFIG);
 248         seq_printf(m, "GB_TILE_CONFIG 0x%08x\n", tmp);
 249         tmp = RREG32(DST_PIPE_CONFIG);
 250         seq_printf(m, "DST_PIPE_CONFIG 0x%08x\n", tmp);
 251         return 0;
 252 }
 253
 254 static int rv515_debugfs_ga_info(struct seq_file *m, void *data)
 255 {
 256         struct drm_info_node *node = (struct drm_info_node *) m->private;
 257         struct drm_device *dev = node->minor->dev;
 258         struct radeon_device *rdev = dev->dev_private;
 259         uint32_t tmp;
 260
 261         tmp = RREG32(0x2140);
 262         seq_printf(m, "VAP_CNTL_STATUS 0x%08x\n", tmp);
 263         radeon_asic_reset(rdev);
 264         tmp = RREG32(0x425C);
 265         seq_printf(m, "GA_IDLE 0x%08x\n", tmp);
 266         return 0;
 267 }
 268
 269 static struct drm_info_list rv515_pipes_info_list[] = {
 270         {"rv515_pipes_info", rv515_debugfs_pipes_info, 0, NULL},
 271 };
 272
 273 static struct drm_info_list rv515_ga_info_list[] = {
 274         {"rv515_ga_info", rv515_debugfs_ga_info, 0, NULL},
 275 };
 276 #endif
 277
 278 static int rv515_debugfs_pipes_info_init(struct radeon_device *rdev)
 279 {
 280 #if defined(CONFIG_DEBUG_FS)
 281         return radeon_debugfs_add_files(rdev, rv515_pipes_info_list, 1);
 282 #else
 283         return 0;
 284 #endif
 285 }
 286
 287 static int rv515_debugfs_ga_info_init(struct radeon_device *rdev)
 288 {
 289 #if defined(CONFIG_DEBUG_FS)
 290         return radeon_debugfs_add_files(rdev, rv515_ga_info_list, 1);
 291 #else
 292         return 0;
 293 #endif
 294 }
 295
 296 void rv515_mc_stop(struct radeon_device *rdev, struct rv515_mc_save *save)
 297 {
 298         u32 crtc_enabled, tmp, frame_count, blackout;
 299         int i, j;
 300
 301         save->vga_render_control = RREG32(R_000300_VGA_RENDER_CONTROL);
 302         save->vga_hdp_control = RREG32(R_000328_VGA_HDP_CONTROL);
 303
 304         /* disable VGA render */
 305         WREG32(R_000300_VGA_RENDER_CONTROL, 0);
 306         /* blank the display controllers */
 307         for (i = 0; i < rdev->num_crtc; i++) {
 308                 crtc_enabled = RREG32(AVIVO_D1CRTC_CONTROL + crtc_offsets[i]) & AVIVO_CRTC_EN;
 309                 if (crtc_enabled) {
 310                         save->crtc_enabled[i] = true;
 311                         tmp = RREG32(AVIVO_D1CRTC_CONTROL + crtc_offsets[i]);
 312                         if (!(tmp & AVIVO_CRTC_DISP_READ_REQUEST_DISABLE)) {
 313                                 radeon_wait_for_vblank(rdev, i);
 314                                 WREG32(AVIVO_D1CRTC_UPDATE_LOCK + crtc_offsets[i], 1);
 315                                 tmp |= AVIVO_CRTC_DISP_READ_REQUEST_DISABLE;
 316                                 WREG32(AVIVO_D1CRTC_CONTROL + crtc_offsets[i], tmp);
 317                                 WREG32(AVIVO_D1CRTC_UPDATE_LOCK + crtc_offsets[i], 0);
 318                         }
 319                         /* wait for the next frame */
 320                         frame_count = radeon_get_vblank_counter(rdev, i);
 321                         for (j = 0; j < rdev->usec_timeout; j++) {
 322                                 if (radeon_get_vblank_counter(rdev, i) != frame_count)
 323                                         break;
 324                                 udelay(1);
 325                         }
 326
 327                         /* XXX this is a hack to avoid strange behavior with EFI on certain systems */
 328                         WREG32(AVIVO_D1CRTC_UPDATE_LOCK + crtc_offsets[i], 1);
 329                         tmp = RREG32(AVIVO_D1CRTC_CONTROL + crtc_offsets[i]);
 330                         tmp &= ~AVIVO_CRTC_EN;
 331                         WREG32(AVIVO_D1CRTC_CONTROL + crtc_offsets[i], tmp);
 332                         WREG32(AVIVO_D1CRTC_UPDATE_LOCK + crtc_offsets[i], 0);
 333                         save->crtc_enabled[i] = false;
 334                         /* ***** */
 335                 } else {
 336                         save->crtc_enabled[i] = false;
 337                 }
 338         }
 339
 340         radeon_mc_wait_for_idle(rdev);
 341
 342         if (rdev->family >= CHIP_R600) {
 343                 if (rdev->family >= CHIP_RV770)
 344                         blackout = RREG32(R700_MC_CITF_CNTL);
 345                 else
 346                         blackout = RREG32(R600_CITF_CNTL);
 347                 if ((blackout & R600_BLACKOUT_MASK) != R600_BLACKOUT_MASK) {
 348                         /* Block CPU access */
 349                         WREG32(R600_BIF_FB_EN, 0);
 350                         /* blackout the MC */
 351                         blackout |= R600_BLACKOUT_MASK;
 352                         if (rdev->family >= CHIP_RV770)
 353                                 WREG32(R700_MC_CITF_CNTL, blackout);
 354                         else
 355                                 WREG32(R600_CITF_CNTL, blackout);
 356                 }
 357         }
 358         /* wait for the MC to settle */
 359         udelay(100);
 360
 361         /* lock double buffered regs */
 362         for (i = 0; i < rdev->num_crtc; i++) {
 363                 if (save->crtc_enabled[i]) {
 364                         tmp = RREG32(AVIVO_D1GRPH_UPDATE + crtc_offsets[i]);
 365                         if (!(tmp & AVIVO_D1GRPH_UPDATE_LOCK)) {
 366                                 tmp |= AVIVO_D1GRPH_UPDATE_LOCK;
 367                                 WREG32(AVIVO_D1GRPH_UPDATE + crtc_offsets[i], tmp);
 368                         }
 369                         tmp = RREG32(AVIVO_D1MODE_MASTER_UPDATE_LOCK + crtc_offsets[i]);
 370                         if (!(tmp & 1)) {
 371                                 tmp |= 1;
 372                                 WREG32(AVIVO_D1MODE_MASTER_UPDATE_LOCK + crtc_offsets[i], tmp);
 373                         }
 374                 }
 375         }
 376 }
 377
 378 void rv515_mc_resume(struct radeon_device *rdev, struct rv515_mc_save *save)
 379 {
 380         u32 tmp, frame_count;
 381         int i, j;
 382
 383         /* update crtc base addresses */
 384         for (i = 0; i < rdev->num_crtc; i++) {
 385                 if (rdev->family >= CHIP_RV770) {
 386                         if (i == 0) {
 387                                 WREG32(R700_D1GRPH_PRIMARY_SURFACE_ADDRESS_HIGH,
 388                                        upper_32_bits(rdev->mc.vram_start));
 389                                 WREG32(R700_D1GRPH_SECONDARY_SURFACE_ADDRESS_HIGH,
 390                                        upper_32_bits(rdev->mc.vram_start));
 391                         } else {
 392                                 WREG32(R700_D2GRPH_PRIMARY_SURFACE_ADDRESS_HIGH,
 393                                        upper_32_bits(rdev->mc.vram_start));
 394                                 WREG32(R700_D2GRPH_SECONDARY_SURFACE_ADDRESS_HIGH,
 395                                        upper_32_bits(rdev->mc.vram_start));
 396                         }
 397                 }
 398                 WREG32(R_006110_D1GRPH_PRIMARY_SURFACE_ADDRESS + crtc_offsets[i],
 399                        (u32)rdev->mc.vram_start);
 400                 WREG32(R_006118_D1GRPH_SECONDARY_SURFACE_ADDRESS + crtc_offsets[i],
 401                        (u32)rdev->mc.vram_start);
 402         }
 403         WREG32(R_000310_VGA_MEMORY_BASE_ADDRESS, (u32)rdev->mc.vram_start);
 404
 405         /* unlock regs and wait for update */
 406         for (i = 0; i < rdev->num_crtc; i++) {
 407                 if (save->crtc_enabled[i]) {
 408                         tmp = RREG32(AVIVO_D1MODE_MASTER_UPDATE_MODE + crtc_offsets[i]);
 409                         if ((tmp & 0x3) != 0) {
 410                                 tmp &= ~0x3;
 411                                 WREG32(AVIVO_D1MODE_MASTER_UPDATE_MODE + crtc_offsets[i], tmp);
 412                         }
 413                         tmp = RREG32(AVIVO_D1GRPH_UPDATE + crtc_offsets[i]);
 414                         if (tmp & AVIVO_D1GRPH_UPDATE_LOCK) {
 415                                 tmp &= ~AVIVO_D1GRPH_UPDATE_LOCK;
 416                                 WREG32(AVIVO_D1GRPH_UPDATE + crtc_offsets[i], tmp);
 417                         }
 418                         tmp = RREG32(AVIVO_D1MODE_MASTER_UPDATE_LOCK + crtc_offsets[i]);
 419                         if (tmp & 1) {
 420                                 tmp &= ~1;
 421                                 WREG32(AVIVO_D1MODE_MASTER_UPDATE_LOCK + crtc_offsets[i], tmp);
 422                         }
 423                         for (j = 0; j < rdev->usec_timeout; j++) {
 424                                 tmp = RREG32(AVIVO_D1GRPH_UPDATE + crtc_offsets[i]);
 425                                 if ((tmp & AVIVO_D1GRPH_SURFACE_UPDATE_PENDING) == 0)
 426                                         break;
 427                                 udelay(1);
 428                         }
 429                 }
 430         }
 431
 432         if (rdev->family >= CHIP_R600) {
 433                 /* unblackout the MC */
 434                 if (rdev->family >= CHIP_RV770)
 435                         tmp = RREG32(R700_MC_CITF_CNTL);
 436                 else
 437                         tmp = RREG32(R600_CITF_CNTL);
 438                 tmp &= ~R600_BLACKOUT_MASK;
 439                 if (rdev->family >= CHIP_RV770)
 440                         WREG32(R700_MC_CITF_CNTL, tmp);
 441                 else
 442                         WREG32(R600_CITF_CNTL, tmp);
 443                 /* allow CPU access */
 444                 WREG32(R600_BIF_FB_EN, R600_FB_READ_EN | R600_FB_WRITE_EN);
 445         }
 446
 447         for (i = 0; i < rdev->num_crtc; i++) {
 448                 if (save->crtc_enabled[i]) {
 449                         tmp = RREG32(AVIVO_D1CRTC_CONTROL + crtc_offsets[i]);
 450                         tmp &= ~AVIVO_CRTC_DISP_READ_REQUEST_DISABLE;
 451                         WREG32(AVIVO_D1CRTC_CONTROL + crtc_offsets[i], tmp);
 452                         /* wait for the next frame */
 453                         frame_count = radeon_get_vblank_counter(rdev, i);
 454                         for (j = 0; j < rdev->usec_timeout; j++) {
 455                                 if (radeon_get_vblank_counter(rdev, i) != frame_count)
 456                                         break;
 457                                 udelay(1);
 458                         }
 459                 }
 460         }
 461         /* Unlock vga access */
 462         WREG32(R_000328_VGA_HDP_CONTROL, save->vga_hdp_control);
 463         mdelay(1);
 464         WREG32(R_000300_VGA_RENDER_CONTROL, save->vga_render_control);
 465 }
 466
 467 static void rv515_mc_program(struct radeon_device *rdev)
 468 {
 469         struct rv515_mc_save save;
 470
 471         /* Stops all mc clients */
 472         rv515_mc_stop(rdev, &save);
 473
 474         /* Wait for mc idle */
 475         if (rv515_mc_wait_for_idle(rdev))
 476                 dev_warn(rdev->dev, "Wait MC idle timeout before updating MC.\n");
 477         /* Write VRAM size in case we are limiting it */
 478         WREG32(R_0000F8_CONFIG_MEMSIZE, rdev->mc.real_vram_size);
 479         /* Program MC, should be a 32bits limited address space */
 480         WREG32_MC(R_000001_MC_FB_LOCATION,
 481                         S_000001_MC_FB_START(rdev->mc.vram_start >> 16) |
 482                         S_000001_MC_FB_TOP(rdev->mc.vram_end >> 16));
 483         WREG32(R_000134_HDP_FB_LOCATION,
 484                 S_000134_HDP_FB_START(rdev->mc.vram_start >> 16));
 485         if (rdev->flags & RADEON_IS_AGP) {
 486                 WREG32_MC(R_000002_MC_AGP_LOCATION,
 487                         S_000002_MC_AGP_START(rdev->mc.gtt_start >> 16) |
 488                         S_000002_MC_AGP_TOP(rdev->mc.gtt_end >> 16));
 489                 WREG32_MC(R_000003_MC_AGP_BASE, lower_32_bits(rdev->mc.agp_base));
 490                 WREG32_MC(R_000004_MC_AGP_BASE_2,
 491                         S_000004_AGP_BASE_ADDR_2(upper_32_bits(rdev->mc.agp_base)));
 492         } else {
 493                 WREG32_MC(R_000002_MC_AGP_LOCATION, 0xFFFFFFFF);
 494                 WREG32_MC(R_000003_MC_AGP_BASE, 0);
 495                 WREG32_MC(R_000004_MC_AGP_BASE_2, 0);
 496         }
 497
 498         rv515_mc_resume(rdev, &save);
 499 }
 500
 501 void rv515_clock_startup(struct radeon_device *rdev)
 502 {
 503         if (radeon_dynclks != -1 && radeon_dynclks)
 504                 radeon_atom_set_clock_gating(rdev, 1);
 505         /* We need to force on some of the block */
 506         WREG32_PLL(R_00000F_CP_DYN_CNTL,
 507                 RREG32_PLL(R_00000F_CP_DYN_CNTL) | S_00000F_CP_FORCEON(1));
 508         WREG32_PLL(R_000011_E2_DYN_CNTL,
 509                 RREG32_PLL(R_000011_E2_DYN_CNTL) | S_000011_E2_FORCEON(1));
 510         WREG32_PLL(R_000013_IDCT_DYN_CNTL,
 511                 RREG32_PLL(R_000013_IDCT_DYN_CNTL) | S_000013_IDCT_FORCEON(1));
 512 }
 513
 514 static int rv515_startup(struct radeon_device *rdev)
 515 {
 516         int r;
 517
 518         rv515_mc_program(rdev);
 519         /* Resume clock */
 520         rv515_clock_startup(rdev);
 521         /* Initialize GPU configuration (# pipes, ...) */
 522         rv515_gpu_init(rdev);
 523         /* Initialize GART (initialize after TTM so we can allocate
 524          * memory through TTM but finalize after TTM) */
 525         if (rdev->flags & RADEON_IS_PCIE) {
 526                 r = rv370_pcie_gart_enable(rdev);
 527                 if (r)
 528                         return r;
 529         }
 530
 531         /* allocate wb buffer */
 532         r = radeon_wb_init(rdev);
 533         if (r)
 534                 return r;
 535
 536         r = radeon_fence_driver_start_ring(rdev, RADEON_RING_TYPE_GFX_INDEX);
 537         if (r) {
 538                 dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r);
 539                 return r;
 540         }
 541
 542         /* Enable IRQ */
 543         if (!rdev->irq.installed) {
 544                 r = radeon_irq_kms_init(rdev);
 545                 if (r)
 546                         return r;
 547         }
 548
 549         rs600_irq_set(rdev);
 550         rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
 551         /* 1M ring buffer */
 552         r = r100_cp_init(rdev, 1024 * 1024);
 553         if (r) {
 554                 dev_err(rdev->dev, "failed initializing CP (%d).\n", r);
 555                 return r;
 556         }
 557
 558         r = radeon_ib_pool_init(rdev);
 559         if (r) {
 560                 dev_err(rdev->dev, "IB initialization failed (%d).\n", r);
 561                 return r;
 562         }
 563
 564         return 0;
 565 }
 566
 567 int rv515_resume(struct radeon_device *rdev)
 568 {
 569         int r;
 570
 571         /* Make sur GART are not working */
 572         if (rdev->flags & RADEON_IS_PCIE)
 573                 rv370_pcie_gart_disable(rdev);
 574         /* Resume clock before doing reset */
 575         rv515_clock_startup(rdev);
 576         /* Reset gpu before posting otherwise ATOM will enter infinite loop */
 577         if (radeon_asic_reset(rdev)) {
 578                 dev_warn(rdev->dev, "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
 579                         RREG32(R_000E40_RBBM_STATUS),
 580                         RREG32(R_0007C0_CP_STAT));
 581         }
 582         /* post */
 583         atom_asic_init(rdev->mode_info.atom_context);
 584         /* Resume clock after posting */
 585         rv515_clock_startup(rdev);
 586         /* Initialize surface registers */
 587         radeon_surface_init(rdev);
 588
 589         rdev->accel_working = true;
 590         r =  rv515_startup(rdev);
 591         if (r) {
 592                 rdev->accel_working = false;
 593         }
 594         return r;
 595 }
 596
 597 int rv515_suspend(struct radeon_device *rdev)
 598 {
 599         radeon_pm_suspend(rdev);
 600         r100_cp_disable(rdev);
 601         radeon_wb_disable(rdev);
 602         rs600_irq_disable(rdev);
 603         if (rdev->flags & RADEON_IS_PCIE)
 604                 rv370_pcie_gart_disable(rdev);
 605         return 0;
 606 }
 607
 608 void rv515_set_safe_registers(struct radeon_device *rdev)
 609 {
 610         rdev->config.r300.reg_safe_bm = rv515_reg_safe_bm;
 611         rdev->config.r300.reg_safe_bm_size = ARRAY_SIZE(rv515_reg_safe_bm);
 612 }
 613
 614 void rv515_fini(struct radeon_device *rdev)
 615 {
 616         radeon_pm_fini(rdev);
 617         r100_cp_fini(rdev);
 618         radeon_wb_fini(rdev);
 619         radeon_ib_pool_fini(rdev);
 620         radeon_gem_fini(rdev);
 621         rv370_pcie_gart_fini(rdev);
 622         radeon_agp_fini(rdev);
 623         radeon_irq_kms_fini(rdev);
 624         radeon_fence_driver_fini(rdev);
 625         radeon_bo_fini(rdev);
 626         radeon_atombios_fini(rdev);
 627         kfree(rdev->bios);
 628         rdev->bios = NULL;
 629 }
 630
 631 int rv515_init(struct radeon_device *rdev)
 632 {
 633         int r;
 634
 635         /* Initialize scratch registers */
 636         radeon_scratch_init(rdev);
 637         /* Initialize surface registers */
 638         radeon_surface_init(rdev);
 639         /* TODO: disable VGA need to use VGA request */
 640         /* restore some register to sane defaults */
 641         r100_restore_sanity(rdev);
 642         /* BIOS*/
 643         if (!radeon_get_bios(rdev)) {
 644                 if (ASIC_IS_AVIVO(rdev))
 645                         return -EINVAL;
 646         }
 647         if (rdev->is_atom_bios) {
 648                 r = radeon_atombios_init(rdev);
 649                 if (r)
 650                         return r;
 651         } else {
 652                 dev_err(rdev->dev, "Expecting atombios for RV515 GPU\n");
 653                 return -EINVAL;
 654         }
 655         /* Reset gpu before posting otherwise ATOM will enter infinite loop */
 656         if (radeon_asic_reset(rdev)) {
 657                 dev_warn(rdev->dev,
 658                         "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
 659                         RREG32(R_000E40_RBBM_STATUS),
 660                         RREG32(R_0007C0_CP_STAT));
 661         }
 662         /* check if cards are posted or not */
 663         if (radeon_boot_test_post_card(rdev) == false)
 664                 return -EINVAL;
 665         /* Initialize clocks */
 666         radeon_get_clock_info(rdev->ddev);
 667         /* initialize AGP */
 668         if (rdev->flags & RADEON_IS_AGP) {
 669                 r = radeon_agp_init(rdev);
 670                 if (r) {
 671                         radeon_agp_disable(rdev);
 672                 }
 673         }
 674         /* initialize memory controller */
 675         rv515_mc_init(rdev);
 676         rv515_debugfs(rdev);
 677         /* Fence driver */
 678         r = radeon_fence_driver_init(rdev);
 679         if (r)
 680                 return r;
 681         /* Memory manager */
 682         r = radeon_bo_init(rdev);
 683         if (r)
 684                 return r;
 685         r = rv370_pcie_gart_init(rdev);
 686         if (r)
 687                 return r;
 688         rv515_set_safe_registers(rdev);
 689
 690         /* Initialize power management */
 691         radeon_pm_init(rdev);
 692
 693         rdev->accel_working = true;
 694         r = rv515_startup(rdev);
 695         if (r) {
 696                 /* Somethings want wront with the accel init stop accel */
 697                 dev_err(rdev->dev, "Disabling GPU acceleration\n");
 698                 r100_cp_fini(rdev);
 699                 radeon_wb_fini(rdev);
 700                 radeon_ib_pool_fini(rdev);
 701                 radeon_irq_kms_fini(rdev);
 702                 rv370_pcie_gart_fini(rdev);
 703                 radeon_agp_fini(rdev);
 704                 rdev->accel_working = false;
 705         }
 706         return 0;
 707 }
 708
 709 void atom_rv515_force_tv_scaler(struct radeon_device *rdev, struct radeon_crtc *crtc)
 710 {
 711         int index_reg = 0x6578 + crtc->crtc_offset;
 712         int data_reg = 0x657c + crtc->crtc_offset;
 713
 714         WREG32(0x659C + crtc->crtc_offset, 0x0);
 715         WREG32(0x6594 + crtc->crtc_offset, 0x705);
 716         WREG32(0x65A4 + crtc->crtc_offset, 0x10001);
 717         WREG32(0x65D8 + crtc->crtc_offset, 0x0);
 718         WREG32(0x65B0 + crtc->crtc_offset, 0x0);
 719         WREG32(0x65C0 + crtc->crtc_offset, 0x0);
 720         WREG32(0x65D4 + crtc->crtc_offset, 0x0);
 721         WREG32(index_reg, 0x0);
 722         WREG32(data_reg, 0x841880A8);
 723         WREG32(index_reg, 0x1);
 724         WREG32(data_reg, 0x84208680);
 725         WREG32(index_reg, 0x2);
 726         WREG32(data_reg, 0xBFF880B0);
 727         WREG32(index_reg, 0x100);
 728         WREG32(data_reg, 0x83D88088);
 729         WREG32(index_reg, 0x101);
 730         WREG32(data_reg, 0x84608680);
 731         WREG32(index_reg, 0x102);
 732         WREG32(data_reg, 0xBFF080D0);
 733         WREG32(index_reg, 0x200);
 734         WREG32(data_reg, 0x83988068);
 735         WREG32(index_reg, 0x201);
 736         WREG32(data_reg, 0x84A08680);
 737         WREG32(index_reg, 0x202);
 738         WREG32(data_reg, 0xBFF080F8);
 739         WREG32(index_reg, 0x300);
 740         WREG32(data_reg, 0x83588058);
 741         WREG32(index_reg, 0x301);
 742         WREG32(data_reg, 0x84E08660);
 743         WREG32(index_reg, 0x302);
 744         WREG32(data_reg, 0xBFF88120);
 745         WREG32(index_reg, 0x400);
 746         WREG32(data_reg, 0x83188040);
 747         WREG32(index_reg, 0x401);
 748         WREG32(data_reg, 0x85008660);
 749         WREG32(index_reg, 0x402);
 750         WREG32(data_reg, 0xBFF88150);
 751         WREG32(index_reg, 0x500);
 752         WREG32(data_reg, 0x82D88030);
 753         WREG32(index_reg, 0x501);
 754         WREG32(data_reg, 0x85408640);
 755         WREG32(index_reg, 0x502);
 756         WREG32(data_reg, 0xBFF88180);
 757         WREG32(index_reg, 0x600);
 758         WREG32(data_reg, 0x82A08018);
 759         WREG32(index_reg, 0x601);
 760         WREG32(data_reg, 0x85808620);
 761         WREG32(index_reg, 0x602);
 762         WREG32(data_reg, 0xBFF081B8);
 763         WREG32(index_reg, 0x700);
 764         WREG32(data_reg, 0x82608010);
 765         WREG32(index_reg, 0x701);
 766         WREG32(data_reg, 0x85A08600);
 767         WREG32(index_reg, 0x702);
 768         WREG32(data_reg, 0x800081F0);
 769         WREG32(index_reg, 0x800);
 770         WREG32(data_reg, 0x8228BFF8);
 771         WREG32(index_reg, 0x801);
 772         WREG32(data_reg, 0x85E085E0);
 773         WREG32(index_reg, 0x802);
 774         WREG32(data_reg, 0xBFF88228);
 775         WREG32(index_reg, 0x10000);
 776         WREG32(data_reg, 0x82A8BF00);
 777         WREG32(index_reg, 0x10001);
 778         WREG32(data_reg, 0x82A08CC0);
 779         WREG32(index_reg, 0x10002);
 780         WREG32(data_reg, 0x8008BEF8);
 781         WREG32(index_reg, 0x10100);
 782         WREG32(data_reg, 0x81F0BF28);
 783         WREG32(index_reg, 0x10101);
 784         WREG32(data_reg, 0x83608CA0);
 785         WREG32(index_reg, 0x10102);
 786         WREG32(data_reg, 0x8018BED0);
 787         WREG32(index_reg, 0x10200);
 788         WREG32(data_reg, 0x8148BF38);
 789         WREG32(index_reg, 0x10201);
 790         WREG32(data_reg, 0x84408C80);
 791         WREG32(index_reg, 0x10202);
 792         WREG32(data_reg, 0x8008BEB8);
 793         WREG32(index_reg, 0x10300);
 794         WREG32(data_reg, 0x80B0BF78);
 795         WREG32(index_reg, 0x10301);
 796         WREG32(data_reg, 0x85008C20);
 797         WREG32(index_reg, 0x10302);
 798         WREG32(data_reg, 0x8020BEA0);
 799         WREG32(index_reg, 0x10400);
 800         WREG32(data_reg, 0x8028BF90);
 801         WREG32(index_reg, 0x10401);
 802         WREG32(data_reg, 0x85E08BC0);
 803         WREG32(index_reg, 0x10402);
 804         WREG32(data_reg, 0x8018BE90);
 805         WREG32(index_reg, 0x10500);
 806         WREG32(data_reg, 0xBFB8BFB0);
 807         WREG32(index_reg, 0x10501);
 808         WREG32(data_reg, 0x86C08B40);
 809         WREG32(index_reg, 0x10502);
 810         WREG32(data_reg, 0x8010BE90);
 811         WREG32(index_reg, 0x10600);
 812         WREG32(data_reg, 0xBF58BFC8);
 813         WREG32(index_reg, 0x10601);
 814         WREG32(data_reg, 0x87A08AA0);
 815         WREG32(index_reg, 0x10602);
 816         WREG32(data_reg, 0x8010BE98);
 817         WREG32(index_reg, 0x10700);
 818         WREG32(data_reg, 0xBF10BFF0);
 819         WREG32(index_reg, 0x10701);
 820         WREG32(data_reg, 0x886089E0);
 821         WREG32(index_reg, 0x10702);
 822         WREG32(data_reg, 0x8018BEB0);
 823         WREG32(index_reg, 0x10800);
 824         WREG32(data_reg, 0xBED8BFE8);
 825         WREG32(index_reg, 0x10801);
 826         WREG32(data_reg, 0x89408940);
 827         WREG32(index_reg, 0x10802);
 828         WREG32(data_reg, 0xBFE8BED8);
 829         WREG32(index_reg, 0x20000);
 830         WREG32(data_reg, 0x80008000);
 831         WREG32(index_reg, 0x20001);
 832         WREG32(data_reg, 0x90008000);
 833         WREG32(index_reg, 0x20002);
 834         WREG32(data_reg, 0x80008000);
 835         WREG32(index_reg, 0x20003);
 836         WREG32(data_reg, 0x80008000);
 837         WREG32(index_reg, 0x20100);
 838         WREG32(data_reg, 0x80108000);
 839         WREG32(index_reg, 0x20101);
 840         WREG32(data_reg, 0x8FE0BF70);
 841         WREG32(index_reg, 0x20102);
 842         WREG32(data_reg, 0xBFE880C0);
 843         WREG32(index_reg, 0x20103);
 844         WREG32(data_reg, 0x80008000);
 845         WREG32(index_reg, 0x20200);
 846         WREG32(data_reg, 0x8018BFF8);
 847         WREG32(index_reg, 0x20201);
 848         WREG32(data_reg, 0x8F80BF08);
 849         WREG32(index_reg, 0x20202);
 850         WREG32(data_reg, 0xBFD081A0);
 851         WREG32(index_reg, 0x20203);
 852         WREG32(data_reg, 0xBFF88000);
 853         WREG32(index_reg, 0x20300);
 854         WREG32(data_reg, 0x80188000);
 855         WREG32(index_reg, 0x20301);
 856         WREG32(data_reg, 0x8EE0BEC0);
 857         WREG32(index_reg, 0x20302);
 858         WREG32(data_reg, 0xBFB082A0);
 859         WREG32(index_reg, 0x20303);
 860         WREG32(data_reg, 0x80008000);
 861         WREG32(index_reg, 0x20400);
 862         WREG32(data_reg, 0x80188000);
 863         WREG32(index_reg, 0x20401);
 864         WREG32(data_reg, 0x8E00BEA0);
 865         WREG32(index_reg, 0x20402);
 866         WREG32(data_reg, 0xBF8883C0);
 867         WREG32(index_reg, 0x20403);
 868         WREG32(data_reg, 0x80008000);
 869         WREG32(index_reg, 0x20500);
 870         WREG32(data_reg, 0x80188000);
 871         WREG32(index_reg, 0x20501);
 872         WREG32(data_reg, 0x8D00BE90);
 873         WREG32(index_reg, 0x20502);
 874         WREG32(data_reg, 0xBF588500);
 875         WREG32(index_reg, 0x20503);
 876         WREG32(data_reg, 0x80008008);
 877         WREG32(index_reg, 0x20600);
 878         WREG32(data_reg, 0x80188000);
 879         WREG32(index_reg, 0x20601);
 880         WREG32(data_reg, 0x8BC0BE98);
 881         WREG32(index_reg, 0x20602);
 882         WREG32(data_reg, 0xBF308660);
 883         WREG32(index_reg, 0x20603);
 884         WREG32(data_reg, 0x80008008);
 885         WREG32(index_reg, 0x20700);
 886         WREG32(data_reg, 0x80108000);
 887         WREG32(index_reg, 0x20701);
 888         WREG32(data_reg, 0x8A80BEB0);
 889         WREG32(index_reg, 0x20702);
 890         WREG32(data_reg, 0xBF0087C0);
 891         WREG32(index_reg, 0x20703);
 892         WREG32(data_reg, 0x80008008);
 893         WREG32(index_reg, 0x20800);
 894         WREG32(data_reg, 0x80108000);
 895         WREG32(index_reg, 0x20801);
 896         WREG32(data_reg, 0x8920BED0);
 897         WREG32(index_reg, 0x20802);
 898         WREG32(data_reg, 0xBED08920);
 899         WREG32(index_reg, 0x20803);
 900         WREG32(data_reg, 0x80008010);
 901         WREG32(index_reg, 0x30000);
 902         WREG32(data_reg, 0x90008000);
 903         WREG32(index_reg, 0x30001);
 904         WREG32(data_reg, 0x80008000);
 905         WREG32(index_reg, 0x30100);
 906         WREG32(data_reg, 0x8FE0BF90);
 907         WREG32(index_reg, 0x30101);
 908         WREG32(data_reg, 0xBFF880A0);
 909         WREG32(index_reg, 0x30200);
 910         WREG32(data_reg, 0x8F60BF40);
 911         WREG32(index_reg, 0x30201);
 912         WREG32(data_reg, 0xBFE88180);
 913         WREG32(index_reg, 0x30300);
 914         WREG32(data_reg, 0x8EC0BF00);
 915         WREG32(index_reg, 0x30301);
 916         WREG32(data_reg, 0xBFC88280);
 917         WREG32(index_reg, 0x30400);
 918         WREG32(data_reg, 0x8DE0BEE0);
 919         WREG32(index_reg, 0x30401);
 920         WREG32(data_reg, 0xBFA083A0);
 921         WREG32(index_reg, 0x30500);
 922         WREG32(data_reg, 0x8CE0BED0);
 923         WREG32(index_reg, 0x30501);
 924         WREG32(data_reg, 0xBF7884E0);
 925         WREG32(index_reg, 0x30600);
 926         WREG32(data_reg, 0x8BA0BED8);
 927         WREG32(index_reg, 0x30601);
 928         WREG32(data_reg, 0xBF508640);
 929         WREG32(index_reg, 0x30700);
 930         WREG32(data_reg, 0x8A60BEE8);
 931         WREG32(index_reg, 0x30701);
 932         WREG32(data_reg, 0xBF2087A0);
 933         WREG32(index_reg, 0x30800);
 934         WREG32(data_reg, 0x8900BF00);
 935         WREG32(index_reg, 0x30801);
 936         WREG32(data_reg, 0xBF008900);
 937 }
 938
 939 struct rv515_watermark {
 940         u32        lb_request_fifo_depth;
 941         fixed20_12 num_line_pair;
 942         fixed20_12 estimated_width;
 943         fixed20_12 worst_case_latency;
 944         fixed20_12 consumption_rate;
 945         fixed20_12 active_time;
 946         fixed20_12 dbpp;
 947         fixed20_12 priority_mark_max;
 948         fixed20_12 priority_mark;
 949         fixed20_12 sclk;
 950 };
 951
 952 static void rv515_crtc_bandwidth_compute(struct radeon_device *rdev,
 953                                          struct radeon_crtc *crtc,
 954                                          struct rv515_watermark *wm,
 955                                          bool low)
 956 {
 957         struct drm_display_mode *mode = &crtc->base.mode;
 958         fixed20_12 a, b, c;
 959         fixed20_12 pclk, request_fifo_depth, tolerable_latency, estimated_width;
 960         fixed20_12 consumption_time, line_time, chunk_time, read_delay_latency;
 961         fixed20_12 sclk;
 962         u32 selected_sclk;
 963
 964         if (!crtc->base.enabled) {
 965                 /* FIXME: wouldn't it better to set priority mark to maximum */
 966                 wm->lb_request_fifo_depth = 4;
 967                 return;
 968         }
 969
 970         /* rv6xx, rv7xx */
 971         if ((rdev->family >= CHIP_RV610) &&
 972             (rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled)
 973                 selected_sclk = radeon_dpm_get_sclk(rdev, low);
 974         else
 975                 selected_sclk = rdev->pm.current_sclk;
 976
 977         /* sclk in Mhz */
 978         a.full = dfixed_const(100);
 979         sclk.full = dfixed_const(selected_sclk);
 980         sclk.full = dfixed_div(sclk, a);
 981
 982         if (crtc->vsc.full > dfixed_const(2))
 983                 wm->num_line_pair.full = dfixed_const(2);
 984         else
 985                 wm->num_line_pair.full = dfixed_const(1);
 986
 987         b.full = dfixed_const(mode->crtc_hdisplay);
 988         c.full = dfixed_const(256);
 989         a.full = dfixed_div(b, c);
 990         request_fifo_depth.full = dfixed_mul(a, wm->num_line_pair);
 991         request_fifo_depth.full = dfixed_ceil(request_fifo_depth);
 992         if (a.full < dfixed_const(4)) {
 993                 wm->lb_request_fifo_depth = 4;
 994         } else {
 995                 wm->lb_request_fifo_depth = dfixed_trunc(request_fifo_depth);
 996         }
 997
 998         /* Determine consumption rate
 999          *  pclk = pixel clock period(ns) = 1000 / (mode.clock / 1000)
1000          *  vtaps = number of vertical taps,
1001          *  vsc = vertical scaling ratio, defined as source/destination
1002          *  hsc = horizontal scaling ration, defined as source/destination
1003          */
1004         a.full = dfixed_const(mode->clock);
1005         b.full = dfixed_const(1000);
1006         a.full = dfixed_div(a, b);
1007         pclk.full = dfixed_div(b, a);
1008         if (crtc->rmx_type != RMX_OFF) {
1009                 b.full = dfixed_const(2);
1010                 if (crtc->vsc.full > b.full)
1011                         b.full = crtc->vsc.full;
1012                 b.full = dfixed_mul(b, crtc->hsc);
1013                 c.full = dfixed_const(2);
1014                 b.full = dfixed_div(b, c);
1015                 consumption_time.full = dfixed_div(pclk, b);
1016         } else {
1017                 consumption_time.full = pclk.full;
1018         }
1019         a.full = dfixed_const(1);
1020         wm->consumption_rate.full = dfixed_div(a, consumption_time);
1021
1022
1023         /* Determine line time
1024          *  LineTime = total time for one line of displayhtotal
1025          *  LineTime = total number of horizontal pixels
1026          *  pclk = pixel clock period(ns)
1027          */
1028         a.full = dfixed_const(crtc->base.mode.crtc_htotal);
1029         line_time.full = dfixed_mul(a, pclk);
1030
1031         /* Determine active time
1032          *  ActiveTime = time of active region of display within one line,
1033          *  hactive = total number of horizontal active pixels
1034          *  htotal = total number of horizontal pixels
1035          */
1036         a.full = dfixed_const(crtc->base.mode.crtc_htotal);
1037         b.full = dfixed_const(crtc->base.mode.crtc_hdisplay);
1038         wm->active_time.full = dfixed_mul(line_time, b);
1039         wm->active_time.full = dfixed_div(wm->active_time, a);
1040
1041         /* Determine chunk time
1042          * ChunkTime = the time it takes the DCP to send one chunk of data
1043          * to the LB which consists of pipeline delay and inter chunk gap
1044          * sclk = system clock(Mhz)
1045          */
1046         a.full = dfixed_const(600 * 1000);
1047         chunk_time.full = dfixed_div(a, sclk);
1048         read_delay_latency.full = dfixed_const(1000);
1049
1050         /* Determine the worst case latency
1051          * NumLinePair = Number of line pairs to request(1=2 lines, 2=4 lines)
1052          * WorstCaseLatency = worst case time from urgent to when the MC starts
1053          *                    to return data
1054          * READ_DELAY_IDLE_MAX = constant of 1us
1055          * ChunkTime = time it takes the DCP to send one chunk of data to the LB
1056          *             which consists of pipeline delay and inter chunk gap
1057          */
1058         if (dfixed_trunc(wm->num_line_pair) > 1) {
1059                 a.full = dfixed_const(3);
1060                 wm->worst_case_latency.full = dfixed_mul(a, chunk_time);
1061                 wm->worst_case_latency.full += read_delay_latency.full;
1062         } else {
1063                 wm->worst_case_latency.full = chunk_time.full + read_delay_latency.full;
1064         }
1065
1066         /* Determine the tolerable latency
1067          * TolerableLatency = Any given request has only 1 line time
1068          *                    for the data to be returned
1069          * LBRequestFifoDepth = Number of chunk requests the LB can
1070          *                      put into the request FIFO for a display
1071          *  LineTime = total time for one line of display
1072          *  ChunkTime = the time it takes the DCP to send one chunk
1073          *              of data to the LB which consists of
1074          *  pipeline delay and inter chunk gap
1075          */
1076         if ((2+wm->lb_request_fifo_depth) >= dfixed_trunc(request_fifo_depth)) {
1077                 tolerable_latency.full = line_time.full;
1078         } else {
1079                 tolerable_latency.full = dfixed_const(wm->lb_request_fifo_depth - 2);
1080                 tolerable_latency.full = request_fifo_depth.full - tolerable_latency.full;
1081                 tolerable_latency.full = dfixed_mul(tolerable_latency, chunk_time);
1082                 tolerable_latency.full = line_time.full - tolerable_latency.full;
1083         }
1084         /* We assume worst case 32bits (4 bytes) */
1085         wm->dbpp.full = dfixed_const(2 * 16);
1086
1087         /* Determine the maximum priority mark
1088          *  width = viewport width in pixels
1089          */
1090         a.full = dfixed_const(16);
1091         wm->priority_mark_max.full = dfixed_const(crtc->base.mode.crtc_hdisplay);
1092         wm->priority_mark_max.full = dfixed_div(wm->priority_mark_max, a);
1093         wm->priority_mark_max.full = dfixed_ceil(wm->priority_mark_max);
1094
1095         /* Determine estimated width */
1096         estimated_width.full = tolerable_latency.full - wm->worst_case_latency.full;
1097         estimated_width.full = dfixed_div(estimated_width, consumption_time);
1098         if (dfixed_trunc(estimated_width) > crtc->base.mode.crtc_hdisplay) {
1099                 wm->priority_mark.full = wm->priority_mark_max.full;
1100         } else {
1101                 a.full = dfixed_const(16);
1102                 wm->priority_mark.full = dfixed_div(estimated_width, a);
1103                 wm->priority_mark.full = dfixed_ceil(wm->priority_mark);
1104                 wm->priority_mark.full = wm->priority_mark_max.full - wm->priority_mark.full;
1105         }
1106 }
1107
1108 static void rv515_compute_mode_priority(struct radeon_device *rdev,
1109                                         struct rv515_watermark *wm0,
1110                                         struct rv515_watermark *wm1,
1111                                         struct drm_display_mode *mode0,
1112                                         struct drm_display_mode *mode1,
1113                                         u32 *d1mode_priority_a_cnt,
1114                                         u32 *d2mode_priority_a_cnt)
1115 {
1116         fixed20_12 priority_mark02, priority_mark12, fill_rate;
1117         fixed20_12 a, b;
1118
1119         *d1mode_priority_a_cnt = MODE_PRIORITY_OFF;
1120         *d2mode_priority_a_cnt = MODE_PRIORITY_OFF;
1121
1122         if (mode0 && mode1) {
1123                 if (dfixed_trunc(wm0->dbpp) > 64)
1124                         a.full = dfixed_div(wm0->dbpp, wm0->num_line_pair);
1125                 else
1126                         a.full = wm0->num_line_pair.full;
1127                 if (dfixed_trunc(wm1->dbpp) > 64)
1128                         b.full = dfixed_div(wm1->dbpp, wm1->num_line_pair);
1129                 else
1130                         b.full = wm1->num_line_pair.full;
1131                 a.full += b.full;
1132                 fill_rate.full = dfixed_div(wm0->sclk, a);
1133                 if (wm0->consumption_rate.full > fill_rate.full) {
1134                         b.full = wm0->consumption_rate.full - fill_rate.full;
1135                         b.full = dfixed_mul(b, wm0->active_time);
1136                         a.full = dfixed_const(16);
1137                         b.full = dfixed_div(b, a);
1138                         a.full = dfixed_mul(wm0->worst_case_latency,
1139                                                 wm0->consumption_rate);
1140                         priority_mark02.full = a.full + b.full;
1141                 } else {
1142                         a.full = dfixed_mul(wm0->worst_case_latency,
1143                                                 wm0->consumption_rate);
1144                         b.full = dfixed_const(16 * 1000);
1145                         priority_mark02.full = dfixed_div(a, b);
1146                 }
1147                 if (wm1->consumption_rate.full > fill_rate.full) {
1148                         b.full = wm1->consumption_rate.full - fill_rate.full;
1149                         b.full = dfixed_mul(b, wm1->active_time);
1150                         a.full = dfixed_const(16);
1151                         b.full = dfixed_div(b, a);
1152                         a.full = dfixed_mul(wm1->worst_case_latency,
1153                                                 wm1->consumption_rate);
1154                         priority_mark12.full = a.full + b.full;
1155                 } else {
1156                         a.full = dfixed_mul(wm1->worst_case_latency,
1157                                                 wm1->consumption_rate);
1158                         b.full = dfixed_const(16 * 1000);
1159                         priority_mark12.full = dfixed_div(a, b);
1160                 }
1161                 if (wm0->priority_mark.full > priority_mark02.full)
1162                         priority_mark02.full = wm0->priority_mark.full;
1163                 if (wm0->priority_mark_max.full > priority_mark02.full)
1164                         priority_mark02.full = wm0->priority_mark_max.full;
1165                 if (wm1->priority_mark.full > priority_mark12.full)
1166                         priority_mark12.full = wm1->priority_mark.full;
1167                 if (wm1->priority_mark_max.full > priority_mark12.full)
1168                         priority_mark12.full = wm1->priority_mark_max.full;
1169                 *d1mode_priority_a_cnt = dfixed_trunc(priority_mark02);
1170                 *d2mode_priority_a_cnt = dfixed_trunc(priority_mark12);
1171                 if (rdev->disp_priority == 2) {
1172                         *d1mode_priority_a_cnt |= MODE_PRIORITY_ALWAYS_ON;
1173                         *d2mode_priority_a_cnt |= MODE_PRIORITY_ALWAYS_ON;
1174                 }
1175         } else if (mode0) {
1176                 if (dfixed_trunc(wm0->dbpp) > 64)
1177                         a.full = dfixed_div(wm0->dbpp, wm0->num_line_pair);
1178                 else
1179                         a.full = wm0->num_line_pair.full;
1180                 fill_rate.full = dfixed_div(wm0->sclk, a);
1181                 if (wm0->consumption_rate.full > fill_rate.full) {
1182                         b.full = wm0->consumption_rate.full - fill_rate.full;
1183                         b.full = dfixed_mul(b, wm0->active_time);
1184                         a.full = dfixed_const(16);
1185                         b.full = dfixed_div(b, a);
1186                         a.full = dfixed_mul(wm0->worst_case_latency,
1187                                                 wm0->consumption_rate);
1188                         priority_mark02.full = a.full + b.full;
1189                 } else {
1190                         a.full = dfixed_mul(wm0->worst_case_latency,
1191                                                 wm0->consumption_rate);
1192                         b.full = dfixed_const(16);
1193                         priority_mark02.full = dfixed_div(a, b);
1194                 }
1195                 if (wm0->priority_mark.full > priority_mark02.full)
1196                         priority_mark02.full = wm0->priority_mark.full;
1197                 if (wm0->priority_mark_max.full > priority_mark02.full)
1198                         priority_mark02.full = wm0->priority_mark_max.full;
1199                 *d1mode_priority_a_cnt = dfixed_trunc(priority_mark02);
1200                 if (rdev->disp_priority == 2)
1201                         *d1mode_priority_a_cnt |= MODE_PRIORITY_ALWAYS_ON;
1202         } else if (mode1) {
1203                 if (dfixed_trunc(wm1->dbpp) > 64)
1204                         a.full = dfixed_div(wm1->dbpp, wm1->num_line_pair);
1205                 else
1206                         a.full = wm1->num_line_pair.full;
1207                 fill_rate.full = dfixed_div(wm1->sclk, a);
1208                 if (wm1->consumption_rate.full > fill_rate.full) {
1209                         b.full = wm1->consumption_rate.full - fill_rate.full;
1210                         b.full = dfixed_mul(b, wm1->active_time);
1211                         a.full = dfixed_const(16);
1212                         b.full = dfixed_div(b, a);
1213                         a.full = dfixed_mul(wm1->worst_case_latency,
1214                                                 wm1->consumption_rate);
1215                         priority_mark12.full = a.full + b.full;
1216                 } else {
1217                         a.full = dfixed_mul(wm1->worst_case_latency,
1218                                                 wm1->consumption_rate);
1219                         b.full = dfixed_const(16 * 1000);
1220                         priority_mark12.full = dfixed_div(a, b);
1221                 }
1222                 if (wm1->priority_mark.full > priority_mark12.full)
1223                         priority_mark12.full = wm1->priority_mark.full;
1224                 if (wm1->priority_mark_max.full > priority_mark12.full)
1225                         priority_mark12.full = wm1->priority_mark_max.full;
1226                 *d2mode_priority_a_cnt = dfixed_trunc(priority_mark12);
1227                 if (rdev->disp_priority == 2)
1228                         *d2mode_priority_a_cnt |= MODE_PRIORITY_ALWAYS_ON;
1229         }
1230 }
1231
1232 void rv515_bandwidth_avivo_update(struct radeon_device *rdev)
1233 {
1234         struct drm_display_mode *mode0 = NULL;
1235         struct drm_display_mode *mode1 = NULL;
1236         struct rv515_watermark wm0_high, wm0_low;
1237         struct rv515_watermark wm1_high, wm1_low;
1238         u32 tmp;
1239         u32 d1mode_priority_a_cnt, d1mode_priority_b_cnt;
1240         u32 d2mode_priority_a_cnt, d2mode_priority_b_cnt;
1241
1242         if (rdev->mode_info.crtcs[0]->base.enabled)
1243                 mode0 = &rdev->mode_info.crtcs[0]->base.mode;
1244         if (rdev->mode_info.crtcs[1]->base.enabled)
1245                 mode1 = &rdev->mode_info.crtcs[1]->base.mode;
1246         rs690_line_buffer_adjust(rdev, mode0, mode1);
1247
1248         rv515_crtc_bandwidth_compute(rdev, rdev->mode_info.crtcs[0], &wm0_high, false);
1249         rv515_crtc_bandwidth_compute(rdev, rdev->mode_info.crtcs[1], &wm1_high, false);
1250
1251         rv515_crtc_bandwidth_compute(rdev, rdev->mode_info.crtcs[0], &wm0_low, false);
1252         rv515_crtc_bandwidth_compute(rdev, rdev->mode_info.crtcs[1], &wm1_low, false);
1253
1254         tmp = wm0_high.lb_request_fifo_depth;
1255         tmp |= wm1_high.lb_request_fifo_depth << 16;
1256         WREG32(LB_MAX_REQ_OUTSTANDING, tmp);
1257
1258         rv515_compute_mode_priority(rdev,
1259                                     &wm0_high, &wm1_high,
1260                                     mode0, mode1,
1261                                     &d1mode_priority_a_cnt, &d2mode_priority_a_cnt);
1262         rv515_compute_mode_priority(rdev,
1263                                     &wm0_low, &wm1_low,
1264                                     mode0, mode1,
1265                                     &d1mode_priority_b_cnt, &d2mode_priority_b_cnt);
1266
1267         WREG32(D1MODE_PRIORITY_A_CNT, d1mode_priority_a_cnt);
1268         WREG32(D1MODE_PRIORITY_B_CNT, d1mode_priority_b_cnt);
1269         WREG32(D2MODE_PRIORITY_A_CNT, d2mode_priority_a_cnt);
1270         WREG32(D2MODE_PRIORITY_B_CNT, d2mode_priority_b_cnt);
1271 }
1272
1273 void rv515_bandwidth_update(struct radeon_device *rdev)
1274 {
1275         uint32_t tmp;
1276         struct drm_display_mode *mode0 = NULL;
1277         struct drm_display_mode *mode1 = NULL;
1278
1279         radeon_update_display_priority(rdev);
1280
1281         if (rdev->mode_info.crtcs[0]->base.enabled)
1282                 mode0 = &rdev->mode_info.crtcs[0]->base.mode;
1283         if (rdev->mode_info.crtcs[1]->base.enabled)
1284                 mode1 = &rdev->mode_info.crtcs[1]->base.mode;
1285         /*
1286          * Set display0/1 priority up in the memory controller for
1287          * modes if the user specifies HIGH for displaypriority
1288          * option.
1289          */
1290         if ((rdev->disp_priority == 2) &&
1291             (rdev->family == CHIP_RV515)) {
1292                 tmp = RREG32_MC(MC_MISC_LAT_TIMER);
1293                 tmp &= ~MC_DISP1R_INIT_LAT_MASK;
1294                 tmp &= ~MC_DISP0R_INIT_LAT_MASK;
1295                 if (mode1)
1296                         tmp |= (1 << MC_DISP1R_INIT_LAT_SHIFT);
1297                 if (mode0)
1298                         tmp |= (1 << MC_DISP0R_INIT_LAT_SHIFT);
1299                 WREG32_MC(MC_MISC_LAT_TIMER, tmp);
1300         }
1301         rv515_bandwidth_avivo_update(rdev);
1302 }