drivers/gpu/drm/radeon/rs690.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 "drmP.h"
  29 #include "radeon.h"
  30 #include "radeon_asic.h"
  31 #include "atom.h"
  32 #include "rs690d.h"
  33
  34 int rs690_mc_wait_for_idle(struct radeon_device *rdev)
  35 {
  36         unsigned i;
  37         uint32_t tmp;
  38
  39         for (i = 0; i < rdev->usec_timeout; i++) {
  40                 /* read MC_STATUS */
  41                 tmp = RREG32_MC(R_000090_MC_SYSTEM_STATUS);
  42                 if (G_000090_MC_SYSTEM_IDLE(tmp))
  43                         return 0;
  44                 udelay(1);
  45         }
  46         return -1;
  47 }
  48
  49 static void rs690_gpu_init(struct radeon_device *rdev)
  50 {
  51         /* FIXME: is this correct ? */
  52         r420_pipes_init(rdev);
  53         if (rs690_mc_wait_for_idle(rdev)) {
  54                 printk(KERN_WARNING "Failed to wait MC idle while "
  55                        "programming pipes. Bad things might happen.\n");
  56         }
  57 }
  58
  59 union igp_info {
  60         struct _ATOM_INTEGRATED_SYSTEM_INFO info;
  61         struct _ATOM_INTEGRATED_SYSTEM_INFO_V2 info_v2;
  62 };
  63
  64 void rs690_pm_info(struct radeon_device *rdev)
  65 {
  66         int index = GetIndexIntoMasterTable(DATA, IntegratedSystemInfo);
  67         union igp_info *info;
  68         uint16_t data_offset;
  69         uint8_t frev, crev;
  70         fixed20_12 tmp;
  71
  72         if (atom_parse_data_header(rdev->mode_info.atom_context, index, NULL,
  73                                    &frev, &crev, &data_offset)) {
  74                 info = (union igp_info *)(rdev->mode_info.atom_context->bios + data_offset);
  75
  76                 /* Get various system informations from bios */
  77                 switch (crev) {
  78                 case 1:
  79                         tmp.full = dfixed_const(100);
  80                         rdev->pm.igp_sideport_mclk.full = dfixed_const(le32_to_cpu(info->info.ulBootUpMemoryClock));
  81                         rdev->pm.igp_sideport_mclk.full = dfixed_div(rdev->pm.igp_sideport_mclk, tmp);
  82                         if (le16_to_cpu(info->info.usK8MemoryClock))
  83                                 rdev->pm.igp_system_mclk.full = dfixed_const(le16_to_cpu(info->info.usK8MemoryClock));
  84                         else if (rdev->clock.default_mclk) {
  85                                 rdev->pm.igp_system_mclk.full = dfixed_const(rdev->clock.default_mclk);
  86                                 rdev->pm.igp_system_mclk.full = dfixed_div(rdev->pm.igp_system_mclk, tmp);
  87                         } else
  88                                 rdev->pm.igp_system_mclk.full = dfixed_const(400);
  89                         rdev->pm.igp_ht_link_clk.full = dfixed_const(le16_to_cpu(info->info.usFSBClock));
  90                         rdev->pm.igp_ht_link_width.full = dfixed_const(info->info.ucHTLinkWidth);
  91                         break;
  92                 case 2:
  93                         tmp.full = dfixed_const(100);
  94                         rdev->pm.igp_sideport_mclk.full = dfixed_const(le32_to_cpu(info->info_v2.ulBootUpSidePortClock));
  95                         rdev->pm.igp_sideport_mclk.full = dfixed_div(rdev->pm.igp_sideport_mclk, tmp);
  96                         if (le32_to_cpu(info->info_v2.ulBootUpUMAClock))
  97                                 rdev->pm.igp_system_mclk.full = dfixed_const(le32_to_cpu(info->info_v2.ulBootUpUMAClock));
  98                         else if (rdev->clock.default_mclk)
  99                                 rdev->pm.igp_system_mclk.full = dfixed_const(rdev->clock.default_mclk);
 100                         else
 101                                 rdev->pm.igp_system_mclk.full = dfixed_const(66700);
 102                         rdev->pm.igp_system_mclk.full = dfixed_div(rdev->pm.igp_system_mclk, tmp);
 103                         rdev->pm.igp_ht_link_clk.full = dfixed_const(le32_to_cpu(info->info_v2.ulHTLinkFreq));
 104                         rdev->pm.igp_ht_link_clk.full = dfixed_div(rdev->pm.igp_ht_link_clk, tmp);
 105                         rdev->pm.igp_ht_link_width.full = dfixed_const(le16_to_cpu(info->info_v2.usMinHTLinkWidth));
 106                         break;
 107                 default:
 108                         /* We assume the slower possible clock ie worst case */
 109                         rdev->pm.igp_sideport_mclk.full = dfixed_const(200);
 110                         rdev->pm.igp_system_mclk.full = dfixed_const(200);
 111                         rdev->pm.igp_ht_link_clk.full = dfixed_const(1000);
 112                         rdev->pm.igp_ht_link_width.full = dfixed_const(8);
 113                         DRM_ERROR("No integrated system info for your GPU, using safe default\n");
 114                         break;
 115                 }
 116         } else {
 117                 /* We assume the slower possible clock ie worst case */
 118                 rdev->pm.igp_sideport_mclk.full = dfixed_const(200);
 119                 rdev->pm.igp_system_mclk.full = dfixed_const(200);
 120                 rdev->pm.igp_ht_link_clk.full = dfixed_const(1000);
 121                 rdev->pm.igp_ht_link_width.full = dfixed_const(8);
 122                 DRM_ERROR("No integrated system info for your GPU, using safe default\n");
 123         }
 124         /* Compute various bandwidth */
 125         /* k8_bandwidth = (memory_clk / 2) * 2 * 8 * 0.5 = memory_clk * 4  */
 126         tmp.full = dfixed_const(4);
 127         rdev->pm.k8_bandwidth.full = dfixed_mul(rdev->pm.igp_system_mclk, tmp);
 128         /* ht_bandwidth = ht_clk * 2 * ht_width / 8 * 0.8
 129          *              = ht_clk * ht_width / 5
 130          */
 131         tmp.full = dfixed_const(5);
 132         rdev->pm.ht_bandwidth.full = dfixed_mul(rdev->pm.igp_ht_link_clk,
 133                                                 rdev->pm.igp_ht_link_width);
 134         rdev->pm.ht_bandwidth.full = dfixed_div(rdev->pm.ht_bandwidth, tmp);
 135         if (tmp.full < rdev->pm.max_bandwidth.full) {
 136                 /* HT link is a limiting factor */
 137                 rdev->pm.max_bandwidth.full = tmp.full;
 138         }
 139         /* sideport_bandwidth = (sideport_clk / 2) * 2 * 2 * 0.7
 140          *                    = (sideport_clk * 14) / 10
 141          */
 142         tmp.full = dfixed_const(14);
 143         rdev->pm.sideport_bandwidth.full = dfixed_mul(rdev->pm.igp_sideport_mclk, tmp);
 144         tmp.full = dfixed_const(10);
 145         rdev->pm.sideport_bandwidth.full = dfixed_div(rdev->pm.sideport_bandwidth, tmp);
 146 }
 147
 148 void rs690_mc_init(struct radeon_device *rdev)
 149 {
 150         u64 base;
 151
 152         rs400_gart_adjust_size(rdev);
 153         rdev->mc.vram_is_ddr = true;
 154         rdev->mc.vram_width = 128;
 155         rdev->mc.real_vram_size = RREG32(RADEON_CONFIG_MEMSIZE);
 156         rdev->mc.mc_vram_size = rdev->mc.real_vram_size;
 157         rdev->mc.aper_base = pci_resource_start(rdev->pdev, 0);
 158         rdev->mc.aper_size = pci_resource_len(rdev->pdev, 0);
 159         rdev->mc.visible_vram_size = rdev->mc.aper_size;
 160         base = RREG32_MC(R_000100_MCCFG_FB_LOCATION);
 161         base = G_000100_MC_FB_START(base) << 16;
 162         rdev->mc.igp_sideport_enabled = radeon_atombios_sideport_present(rdev);
 163         rs690_pm_info(rdev);
 164         radeon_vram_location(rdev, &rdev->mc, base);
 165         rdev->mc.gtt_base_align = rdev->mc.gtt_size - 1;
 166         radeon_gtt_location(rdev, &rdev->mc);
 167         radeon_update_bandwidth_info(rdev);
 168 }
 169
 170 void rs690_line_buffer_adjust(struct radeon_device *rdev,
 171                               struct drm_display_mode *mode1,
 172                               struct drm_display_mode *mode2)
 173 {
 174         u32 tmp;
 175
 176         /*
 177          * Line Buffer Setup
 178          * There is a single line buffer shared by both display controllers.
 179          * R_006520_DC_LB_MEMORY_SPLIT controls how that line buffer is shared between
 180          * the display controllers.  The paritioning can either be done
 181          * manually or via one of four preset allocations specified in bits 1:0:
 182          *  0 - line buffer is divided in half and shared between crtc
 183          *  1 - D1 gets 3/4 of the line buffer, D2 gets 1/4
 184          *  2 - D1 gets the whole buffer
 185          *  3 - D1 gets 1/4 of the line buffer, D2 gets 3/4
 186          * Setting bit 2 of R_006520_DC_LB_MEMORY_SPLIT controls switches to manual
 187          * allocation mode. In manual allocation mode, D1 always starts at 0,
 188          * D1 end/2 is specified in bits 14:4; D2 allocation follows D1.
 189          */
 190         tmp = RREG32(R_006520_DC_LB_MEMORY_SPLIT) & C_006520_DC_LB_MEMORY_SPLIT;
 191         tmp &= ~C_006520_DC_LB_MEMORY_SPLIT_MODE;
 192         /* auto */
 193         if (mode1 && mode2) {
 194                 if (mode1->hdisplay > mode2->hdisplay) {
 195                         if (mode1->hdisplay > 2560)
 196                                 tmp |= V_006520_DC_LB_MEMORY_SPLIT_D1_3Q_D2_1Q;
 197                         else
 198                                 tmp |= V_006520_DC_LB_MEMORY_SPLIT_D1HALF_D2HALF;
 199                 } else if (mode2->hdisplay > mode1->hdisplay) {
 200                         if (mode2->hdisplay > 2560)
 201                                 tmp |= V_006520_DC_LB_MEMORY_SPLIT_D1_1Q_D2_3Q;
 202                         else
 203                                 tmp |= V_006520_DC_LB_MEMORY_SPLIT_D1HALF_D2HALF;
 204                 } else
 205                         tmp |= V_006520_DC_LB_MEMORY_SPLIT_D1HALF_D2HALF;
 206         } else if (mode1) {
 207                 tmp |= V_006520_DC_LB_MEMORY_SPLIT_D1_ONLY;
 208         } else if (mode2) {
 209                 tmp |= V_006520_DC_LB_MEMORY_SPLIT_D1_1Q_D2_3Q;
 210         }
 211         WREG32(R_006520_DC_LB_MEMORY_SPLIT, tmp);
 212 }
 213
 214 struct rs690_watermark {
 215         u32        lb_request_fifo_depth;
 216         fixed20_12 num_line_pair;
 217         fixed20_12 estimated_width;
 218         fixed20_12 worst_case_latency;
 219         fixed20_12 consumption_rate;
 220         fixed20_12 active_time;
 221         fixed20_12 dbpp;
 222         fixed20_12 priority_mark_max;
 223         fixed20_12 priority_mark;
 224         fixed20_12 sclk;
 225 };
 226
 227 void rs690_crtc_bandwidth_compute(struct radeon_device *rdev,
 228                                   struct radeon_crtc *crtc,
 229                                   struct rs690_watermark *wm)
 230 {
 231         struct drm_display_mode *mode = &crtc->base.mode;
 232         fixed20_12 a, b, c;
 233         fixed20_12 pclk, request_fifo_depth, tolerable_latency, estimated_width;
 234         fixed20_12 consumption_time, line_time, chunk_time, read_delay_latency;
 235
 236         if (!crtc->base.enabled) {
 237                 /* FIXME: wouldn't it better to set priority mark to maximum */
 238                 wm->lb_request_fifo_depth = 4;
 239                 return;
 240         }
 241
 242         if (crtc->vsc.full > dfixed_const(2))
 243                 wm->num_line_pair.full = dfixed_const(2);
 244         else
 245                 wm->num_line_pair.full = dfixed_const(1);
 246
 247         b.full = dfixed_const(mode->crtc_hdisplay);
 248         c.full = dfixed_const(256);
 249         a.full = dfixed_div(b, c);
 250         request_fifo_depth.full = dfixed_mul(a, wm->num_line_pair);
 251         request_fifo_depth.full = dfixed_ceil(request_fifo_depth);
 252         if (a.full < dfixed_const(4)) {
 253                 wm->lb_request_fifo_depth = 4;
 254         } else {
 255                 wm->lb_request_fifo_depth = dfixed_trunc(request_fifo_depth);
 256         }
 257
 258         /* Determine consumption rate
 259          *  pclk = pixel clock period(ns) = 1000 / (mode.clock / 1000)
 260          *  vtaps = number of vertical taps,
 261          *  vsc = vertical scaling ratio, defined as source/destination
 262          *  hsc = horizontal scaling ration, defined as source/destination
 263          */
 264         a.full = dfixed_const(mode->clock);
 265         b.full = dfixed_const(1000);
 266         a.full = dfixed_div(a, b);
 267         pclk.full = dfixed_div(b, a);
 268         if (crtc->rmx_type != RMX_OFF) {
 269                 b.full = dfixed_const(2);
 270                 if (crtc->vsc.full > b.full)
 271                         b.full = crtc->vsc.full;
 272                 b.full = dfixed_mul(b, crtc->hsc);
 273                 c.full = dfixed_const(2);
 274                 b.full = dfixed_div(b, c);
 275                 consumption_time.full = dfixed_div(pclk, b);
 276         } else {
 277                 consumption_time.full = pclk.full;
 278         }
 279         a.full = dfixed_const(1);
 280         wm->consumption_rate.full = dfixed_div(a, consumption_time);
 281
 282
 283         /* Determine line time
 284          *  LineTime = total time for one line of displayhtotal
 285          *  LineTime = total number of horizontal pixels
 286          *  pclk = pixel clock period(ns)
 287          */
 288         a.full = dfixed_const(crtc->base.mode.crtc_htotal);
 289         line_time.full = dfixed_mul(a, pclk);
 290
 291         /* Determine active time
 292          *  ActiveTime = time of active region of display within one line,
 293          *  hactive = total number of horizontal active pixels
 294          *  htotal = total number of horizontal pixels
 295          */
 296         a.full = dfixed_const(crtc->base.mode.crtc_htotal);
 297         b.full = dfixed_const(crtc->base.mode.crtc_hdisplay);
 298         wm->active_time.full = dfixed_mul(line_time, b);
 299         wm->active_time.full = dfixed_div(wm->active_time, a);
 300
 301         /* Maximun bandwidth is the minimun bandwidth of all component */
 302         rdev->pm.max_bandwidth = rdev->pm.core_bandwidth;
 303         if (rdev->mc.igp_sideport_enabled) {
 304                 if (rdev->pm.max_bandwidth.full > rdev->pm.sideport_bandwidth.full &&
 305                         rdev->pm.sideport_bandwidth.full)
 306                         rdev->pm.max_bandwidth = rdev->pm.sideport_bandwidth;
 307                 read_delay_latency.full = dfixed_const(370 * 800 * 1000);
 308                 read_delay_latency.full = dfixed_div(read_delay_latency,
 309                         rdev->pm.igp_sideport_mclk);
 310         } else {
 311                 if (rdev->pm.max_bandwidth.full > rdev->pm.k8_bandwidth.full &&
 312                         rdev->pm.k8_bandwidth.full)
 313                         rdev->pm.max_bandwidth = rdev->pm.k8_bandwidth;
 314                 if (rdev->pm.max_bandwidth.full > rdev->pm.ht_bandwidth.full &&
 315                         rdev->pm.ht_bandwidth.full)
 316                         rdev->pm.max_bandwidth = rdev->pm.ht_bandwidth;
 317                 read_delay_latency.full = dfixed_const(5000);
 318         }
 319
 320         /* sclk = system clocks(ns) = 1000 / max_bandwidth / 16 */
 321         a.full = dfixed_const(16);
 322         rdev->pm.sclk.full = dfixed_mul(rdev->pm.max_bandwidth, a);
 323         a.full = dfixed_const(1000);
 324         rdev->pm.sclk.full = dfixed_div(a, rdev->pm.sclk);
 325         /* Determine chunk time
 326          * ChunkTime = the time it takes the DCP to send one chunk of data
 327          * to the LB which consists of pipeline delay and inter chunk gap
 328          * sclk = system clock(ns)
 329          */
 330         a.full = dfixed_const(256 * 13);
 331         chunk_time.full = dfixed_mul(rdev->pm.sclk, a);
 332         a.full = dfixed_const(10);
 333         chunk_time.full = dfixed_div(chunk_time, a);
 334
 335         /* Determine the worst case latency
 336          * NumLinePair = Number of line pairs to request(1=2 lines, 2=4 lines)
 337          * WorstCaseLatency = worst case time from urgent to when the MC starts
 338          *                    to return data
 339          * READ_DELAY_IDLE_MAX = constant of 1us
 340          * ChunkTime = time it takes the DCP to send one chunk of data to the LB
 341          *             which consists of pipeline delay and inter chunk gap
 342          */
 343         if (dfixed_trunc(wm->num_line_pair) > 1) {
 344                 a.full = dfixed_const(3);
 345                 wm->worst_case_latency.full = dfixed_mul(a, chunk_time);
 346                 wm->worst_case_latency.full += read_delay_latency.full;
 347         } else {
 348                 a.full = dfixed_const(2);
 349                 wm->worst_case_latency.full = dfixed_mul(a, chunk_time);
 350                 wm->worst_case_latency.full += read_delay_latency.full;
 351         }
 352
 353         /* Determine the tolerable latency
 354          * TolerableLatency = Any given request has only 1 line time
 355          *                    for the data to be returned
 356          * LBRequestFifoDepth = Number of chunk requests the LB can
 357          *                      put into the request FIFO for a display
 358          *  LineTime = total time for one line of display
 359          *  ChunkTime = the time it takes the DCP to send one chunk
 360          *              of data to the LB which consists of
 361          *  pipeline delay and inter chunk gap
 362          */
 363         if ((2+wm->lb_request_fifo_depth) >= dfixed_trunc(request_fifo_depth)) {
 364                 tolerable_latency.full = line_time.full;
 365         } else {
 366                 tolerable_latency.full = dfixed_const(wm->lb_request_fifo_depth - 2);
 367                 tolerable_latency.full = request_fifo_depth.full - tolerable_latency.full;
 368                 tolerable_latency.full = dfixed_mul(tolerable_latency, chunk_time);
 369                 tolerable_latency.full = line_time.full - tolerable_latency.full;
 370         }
 371         /* We assume worst case 32bits (4 bytes) */
 372         wm->dbpp.full = dfixed_const(4 * 8);
 373
 374         /* Determine the maximum priority mark
 375          *  width = viewport width in pixels
 376          */
 377         a.full = dfixed_const(16);
 378         wm->priority_mark_max.full = dfixed_const(crtc->base.mode.crtc_hdisplay);
 379         wm->priority_mark_max.full = dfixed_div(wm->priority_mark_max, a);
 380         wm->priority_mark_max.full = dfixed_ceil(wm->priority_mark_max);
 381
 382         /* Determine estimated width */
 383         estimated_width.full = tolerable_latency.full - wm->worst_case_latency.full;
 384         estimated_width.full = dfixed_div(estimated_width, consumption_time);
 385         if (dfixed_trunc(estimated_width) > crtc->base.mode.crtc_hdisplay) {
 386                 wm->priority_mark.full = dfixed_const(10);
 387         } else {
 388                 a.full = dfixed_const(16);
 389                 wm->priority_mark.full = dfixed_div(estimated_width, a);
 390                 wm->priority_mark.full = dfixed_ceil(wm->priority_mark);
 391                 wm->priority_mark.full = wm->priority_mark_max.full - wm->priority_mark.full;
 392         }
 393 }
 394
 395 void rs690_bandwidth_update(struct radeon_device *rdev)
 396 {
 397         struct drm_display_mode *mode0 = NULL;
 398         struct drm_display_mode *mode1 = NULL;
 399         struct rs690_watermark wm0;
 400         struct rs690_watermark wm1;
 401         u32 tmp;
 402         u32 d1mode_priority_a_cnt = S_006548_D1MODE_PRIORITY_A_OFF(1);
 403         u32 d2mode_priority_a_cnt = S_006548_D1MODE_PRIORITY_A_OFF(1);
 404         fixed20_12 priority_mark02, priority_mark12, fill_rate;
 405         fixed20_12 a, b;
 406
 407         radeon_update_display_priority(rdev);
 408
 409         if (rdev->mode_info.crtcs[0]->base.enabled)
 410                 mode0 = &rdev->mode_info.crtcs[0]->base.mode;
 411         if (rdev->mode_info.crtcs[1]->base.enabled)
 412                 mode1 = &rdev->mode_info.crtcs[1]->base.mode;
 413         /*
 414          * Set display0/1 priority up in the memory controller for
 415          * modes if the user specifies HIGH for displaypriority
 416          * option.
 417          */
 418         if ((rdev->disp_priority == 2) &&
 419             ((rdev->family == CHIP_RS690) || (rdev->family == CHIP_RS740))) {
 420                 tmp = RREG32_MC(R_000104_MC_INIT_MISC_LAT_TIMER);
 421                 tmp &= C_000104_MC_DISP0R_INIT_LAT;
 422                 tmp &= C_000104_MC_DISP1R_INIT_LAT;
 423                 if (mode0)
 424                         tmp |= S_000104_MC_DISP0R_INIT_LAT(1);
 425                 if (mode1)
 426                         tmp |= S_000104_MC_DISP1R_INIT_LAT(1);
 427                 WREG32_MC(R_000104_MC_INIT_MISC_LAT_TIMER, tmp);
 428         }
 429         rs690_line_buffer_adjust(rdev, mode0, mode1);
 430
 431         if ((rdev->family == CHIP_RS690) || (rdev->family == CHIP_RS740))
 432                 WREG32(R_006C9C_DCP_CONTROL, 0);
 433         if ((rdev->family == CHIP_RS780) || (rdev->family == CHIP_RS880))
 434                 WREG32(R_006C9C_DCP_CONTROL, 2);
 435
 436         rs690_crtc_bandwidth_compute(rdev, rdev->mode_info.crtcs[0], &wm0);
 437         rs690_crtc_bandwidth_compute(rdev, rdev->mode_info.crtcs[1], &wm1);
 438
 439         tmp = (wm0.lb_request_fifo_depth - 1);
 440         tmp |= (wm1.lb_request_fifo_depth - 1) << 16;
 441         WREG32(R_006D58_LB_MAX_REQ_OUTSTANDING, tmp);
 442
 443         if (mode0 && mode1) {
 444                 if (dfixed_trunc(wm0.dbpp) > 64)
 445                         a.full = dfixed_mul(wm0.dbpp, wm0.num_line_pair);
 446                 else
 447                         a.full = wm0.num_line_pair.full;
 448                 if (dfixed_trunc(wm1.dbpp) > 64)
 449                         b.full = dfixed_mul(wm1.dbpp, wm1.num_line_pair);
 450                 else
 451                         b.full = wm1.num_line_pair.full;
 452                 a.full += b.full;
 453                 fill_rate.full = dfixed_div(wm0.sclk, a);
 454                 if (wm0.consumption_rate.full > fill_rate.full) {
 455                         b.full = wm0.consumption_rate.full - fill_rate.full;
 456                         b.full = dfixed_mul(b, wm0.active_time);
 457                         a.full = dfixed_mul(wm0.worst_case_latency,
 458                                                 wm0.consumption_rate);
 459                         a.full = a.full + b.full;
 460                         b.full = dfixed_const(16 * 1000);
 461                         priority_mark02.full = dfixed_div(a, b);
 462                 } else {
 463                         a.full = dfixed_mul(wm0.worst_case_latency,
 464                                                 wm0.consumption_rate);
 465                         b.full = dfixed_const(16 * 1000);
 466                         priority_mark02.full = dfixed_div(a, b);
 467                 }
 468                 if (wm1.consumption_rate.full > fill_rate.full) {
 469                         b.full = wm1.consumption_rate.full - fill_rate.full;
 470                         b.full = dfixed_mul(b, wm1.active_time);
 471                         a.full = dfixed_mul(wm1.worst_case_latency,
 472                                                 wm1.consumption_rate);
 473                         a.full = a.full + b.full;
 474                         b.full = dfixed_const(16 * 1000);
 475                         priority_mark12.full = dfixed_div(a, b);
 476                 } else {
 477                         a.full = dfixed_mul(wm1.worst_case_latency,
 478                                                 wm1.consumption_rate);
 479                         b.full = dfixed_const(16 * 1000);
 480                         priority_mark12.full = dfixed_div(a, b);
 481                 }
 482                 if (wm0.priority_mark.full > priority_mark02.full)
 483                         priority_mark02.full = wm0.priority_mark.full;
 484                 if (dfixed_trunc(priority_mark02) < 0)
 485                         priority_mark02.full = 0;
 486                 if (wm0.priority_mark_max.full > priority_mark02.full)
 487                         priority_mark02.full = wm0.priority_mark_max.full;
 488                 if (wm1.priority_mark.full > priority_mark12.full)
 489                         priority_mark12.full = wm1.priority_mark.full;
 490                 if (dfixed_trunc(priority_mark12) < 0)
 491                         priority_mark12.full = 0;
 492                 if (wm1.priority_mark_max.full > priority_mark12.full)
 493                         priority_mark12.full = wm1.priority_mark_max.full;
 494                 d1mode_priority_a_cnt = dfixed_trunc(priority_mark02);
 495                 d2mode_priority_a_cnt = dfixed_trunc(priority_mark12);
 496                 if (rdev->disp_priority == 2) {
 497                         d1mode_priority_a_cnt |= S_006548_D1MODE_PRIORITY_A_ALWAYS_ON(1);
 498                         d2mode_priority_a_cnt |= S_006D48_D2MODE_PRIORITY_A_ALWAYS_ON(1);
 499                 }
 500         } else if (mode0) {
 501                 if (dfixed_trunc(wm0.dbpp) > 64)
 502                         a.full = dfixed_mul(wm0.dbpp, wm0.num_line_pair);
 503                 else
 504                         a.full = wm0.num_line_pair.full;
 505                 fill_rate.full = dfixed_div(wm0.sclk, a);
 506                 if (wm0.consumption_rate.full > fill_rate.full) {
 507                         b.full = wm0.consumption_rate.full - fill_rate.full;
 508                         b.full = dfixed_mul(b, wm0.active_time);
 509                         a.full = dfixed_mul(wm0.worst_case_latency,
 510                                                 wm0.consumption_rate);
 511                         a.full = a.full + b.full;
 512                         b.full = dfixed_const(16 * 1000);
 513                         priority_mark02.full = dfixed_div(a, b);
 514                 } else {
 515                         a.full = dfixed_mul(wm0.worst_case_latency,
 516                                                 wm0.consumption_rate);
 517                         b.full = dfixed_const(16 * 1000);
 518                         priority_mark02.full = dfixed_div(a, b);
 519                 }
 520                 if (wm0.priority_mark.full > priority_mark02.full)
 521                         priority_mark02.full = wm0.priority_mark.full;
 522                 if (dfixed_trunc(priority_mark02) < 0)
 523                         priority_mark02.full = 0;
 524                 if (wm0.priority_mark_max.full > priority_mark02.full)
 525                         priority_mark02.full = wm0.priority_mark_max.full;
 526                 d1mode_priority_a_cnt = dfixed_trunc(priority_mark02);
 527                 if (rdev->disp_priority == 2)
 528                         d1mode_priority_a_cnt |= S_006548_D1MODE_PRIORITY_A_ALWAYS_ON(1);
 529         } else if (mode1) {
 530                 if (dfixed_trunc(wm1.dbpp) > 64)
 531                         a.full = dfixed_mul(wm1.dbpp, wm1.num_line_pair);
 532                 else
 533                         a.full = wm1.num_line_pair.full;
 534                 fill_rate.full = dfixed_div(wm1.sclk, a);
 535                 if (wm1.consumption_rate.full > fill_rate.full) {
 536                         b.full = wm1.consumption_rate.full - fill_rate.full;
 537                         b.full = dfixed_mul(b, wm1.active_time);
 538                         a.full = dfixed_mul(wm1.worst_case_latency,
 539                                                 wm1.consumption_rate);
 540                         a.full = a.full + b.full;
 541                         b.full = dfixed_const(16 * 1000);
 542                         priority_mark12.full = dfixed_div(a, b);
 543                 } else {
 544                         a.full = dfixed_mul(wm1.worst_case_latency,
 545                                                 wm1.consumption_rate);
 546                         b.full = dfixed_const(16 * 1000);
 547                         priority_mark12.full = dfixed_div(a, b);
 548                 }
 549                 if (wm1.priority_mark.full > priority_mark12.full)
 550                         priority_mark12.full = wm1.priority_mark.full;
 551                 if (dfixed_trunc(priority_mark12) < 0)
 552                         priority_mark12.full = 0;
 553                 if (wm1.priority_mark_max.full > priority_mark12.full)
 554                         priority_mark12.full = wm1.priority_mark_max.full;
 555                 d2mode_priority_a_cnt = dfixed_trunc(priority_mark12);
 556                 if (rdev->disp_priority == 2)
 557                         d2mode_priority_a_cnt |= S_006D48_D2MODE_PRIORITY_A_ALWAYS_ON(1);
 558         }
 559
 560         WREG32(R_006548_D1MODE_PRIORITY_A_CNT, d1mode_priority_a_cnt);
 561         WREG32(R_00654C_D1MODE_PRIORITY_B_CNT, d1mode_priority_a_cnt);
 562         WREG32(R_006D48_D2MODE_PRIORITY_A_CNT, d2mode_priority_a_cnt);
 563         WREG32(R_006D4C_D2MODE_PRIORITY_B_CNT, d2mode_priority_a_cnt);
 564 }
 565
 566 uint32_t rs690_mc_rreg(struct radeon_device *rdev, uint32_t reg)
 567 {
 568         uint32_t r;
 569
 570         WREG32(R_000078_MC_INDEX, S_000078_MC_IND_ADDR(reg));
 571         r = RREG32(R_00007C_MC_DATA);
 572         WREG32(R_000078_MC_INDEX, ~C_000078_MC_IND_ADDR);
 573         return r;
 574 }
 575
 576 void rs690_mc_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v)
 577 {
 578         WREG32(R_000078_MC_INDEX, S_000078_MC_IND_ADDR(reg) |
 579                 S_000078_MC_IND_WR_EN(1));
 580         WREG32(R_00007C_MC_DATA, v);
 581         WREG32(R_000078_MC_INDEX, 0x7F);
 582 }
 583
 584 void rs690_mc_program(struct radeon_device *rdev)
 585 {
 586         struct rv515_mc_save save;
 587
 588         /* Stops all mc clients */
 589         rv515_mc_stop(rdev, &save);
 590
 591         /* Wait for mc idle */
 592         if (rs690_mc_wait_for_idle(rdev))
 593                 dev_warn(rdev->dev, "Wait MC idle timeout before updating MC.\n");
 594         /* Program MC, should be a 32bits limited address space */
 595         WREG32_MC(R_000100_MCCFG_FB_LOCATION,
 596                         S_000100_MC_FB_START(rdev->mc.vram_start >> 16) |
 597                         S_000100_MC_FB_TOP(rdev->mc.vram_end >> 16));
 598         WREG32(R_000134_HDP_FB_LOCATION,
 599                 S_000134_HDP_FB_START(rdev->mc.vram_start >> 16));
 600
 601         rv515_mc_resume(rdev, &save);
 602 }
 603
 604 static int rs690_startup(struct radeon_device *rdev)
 605 {
 606         int r;
 607
 608         rs690_mc_program(rdev);
 609         /* Resume clock */
 610         rv515_clock_startup(rdev);
 611         /* Initialize GPU configuration (# pipes, ...) */
 612         rs690_gpu_init(rdev);
 613         /* Initialize GART (initialize after TTM so we can allocate
 614          * memory through TTM but finalize after TTM) */
 615         r = rs400_gart_enable(rdev);
 616         if (r)
 617                 return r;
 618
 619         /* allocate wb buffer */
 620         r = radeon_wb_init(rdev);
 621         if (r)
 622                 return r;
 623
 624         r = radeon_fence_driver_start_ring(rdev, RADEON_RING_TYPE_GFX_INDEX);
 625         if (r) {
 626                 dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r);
 627                 return r;
 628         }
 629
 630         /* Enable IRQ */
 631         rs600_irq_set(rdev);
 632         rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
 633         /* 1M ring buffer */
 634         r = r100_cp_init(rdev, 1024 * 1024);
 635         if (r) {
 636                 dev_err(rdev->dev, "failed initializing CP (%d).\n", r);
 637                 return r;
 638         }
 639
 640         r = radeon_ib_pool_start(rdev);
 641         if (r)
 642                 return r;
 643
 644         r = radeon_ib_ring_tests(rdev);
 645         if (r)
 646                 return r;
 647
 648         r = r600_audio_init(rdev);
 649         if (r) {
 650                 dev_err(rdev->dev, "failed initializing audio\n");
 651                 return r;
 652         }
 653
 654         return 0;
 655 }
 656
 657 int rs690_resume(struct radeon_device *rdev)
 658 {
 659         int r;
 660
 661         /* Make sur GART are not working */
 662         rs400_gart_disable(rdev);
 663         /* Resume clock before doing reset */
 664         rv515_clock_startup(rdev);
 665         /* Reset gpu before posting otherwise ATOM will enter infinite loop */
 666         if (radeon_asic_reset(rdev)) {
 667                 dev_warn(rdev->dev, "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
 668                         RREG32(R_000E40_RBBM_STATUS),
 669                         RREG32(R_0007C0_CP_STAT));
 670         }
 671         /* post */
 672         atom_asic_init(rdev->mode_info.atom_context);
 673         /* Resume clock after posting */
 674         rv515_clock_startup(rdev);
 675         /* Initialize surface registers */
 676         radeon_surface_init(rdev);
 677
 678         rdev->accel_working = true;
 679         r = rs690_startup(rdev);
 680         if (r) {
 681                 rdev->accel_working = false;
 682         }
 683         return r;
 684 }
 685
 686 int rs690_suspend(struct radeon_device *rdev)
 687 {
 688         radeon_ib_pool_suspend(rdev);
 689         r600_audio_fini(rdev);
 690         r100_cp_disable(rdev);
 691         radeon_wb_disable(rdev);
 692         rs600_irq_disable(rdev);
 693         rs400_gart_disable(rdev);
 694         return 0;
 695 }
 696
 697 void rs690_fini(struct radeon_device *rdev)
 698 {
 699         r600_audio_fini(rdev);
 700         r100_cp_fini(rdev);
 701         radeon_wb_fini(rdev);
 702         r100_ib_fini(rdev);
 703         radeon_gem_fini(rdev);
 704         rs400_gart_fini(rdev);
 705         radeon_irq_kms_fini(rdev);
 706         radeon_fence_driver_fini(rdev);
 707         radeon_bo_fini(rdev);
 708         radeon_atombios_fini(rdev);
 709         kfree(rdev->bios);
 710         rdev->bios = NULL;
 711 }
 712
 713 int rs690_init(struct radeon_device *rdev)
 714 {
 715         int r;
 716
 717         /* Disable VGA */
 718         rv515_vga_render_disable(rdev);
 719         /* Initialize scratch registers */
 720         radeon_scratch_init(rdev);
 721         /* Initialize surface registers */
 722         radeon_surface_init(rdev);
 723         /* restore some register to sane defaults */
 724         r100_restore_sanity(rdev);
 725         /* TODO: disable VGA need to use VGA request */
 726         /* BIOS*/
 727         if (!radeon_get_bios(rdev)) {
 728                 if (ASIC_IS_AVIVO(rdev))
 729                         return -EINVAL;
 730         }
 731         if (rdev->is_atom_bios) {
 732                 r = radeon_atombios_init(rdev);
 733                 if (r)
 734                         return r;
 735         } else {
 736                 dev_err(rdev->dev, "Expecting atombios for RV515 GPU\n");
 737                 return -EINVAL;
 738         }
 739         /* Reset gpu before posting otherwise ATOM will enter infinite loop */
 740         if (radeon_asic_reset(rdev)) {
 741                 dev_warn(rdev->dev,
 742                         "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
 743                         RREG32(R_000E40_RBBM_STATUS),
 744                         RREG32(R_0007C0_CP_STAT));
 745         }
 746         /* check if cards are posted or not */
 747         if (radeon_boot_test_post_card(rdev) == false)
 748                 return -EINVAL;
 749
 750         /* Initialize clocks */
 751         radeon_get_clock_info(rdev->ddev);
 752         /* initialize memory controller */
 753         rs690_mc_init(rdev);
 754         rv515_debugfs(rdev);
 755         /* Fence driver */
 756         r = radeon_fence_driver_init(rdev);
 757         if (r)
 758                 return r;
 759         r = radeon_irq_kms_init(rdev);
 760         if (r)
 761                 return r;
 762         /* Memory manager */
 763         r = radeon_bo_init(rdev);
 764         if (r)
 765                 return r;
 766         r = rs400_gart_init(rdev);
 767         if (r)
 768                 return r;
 769         rs600_set_safe_registers(rdev);
 770
 771         r = radeon_ib_pool_init(rdev);
 772         rdev->accel_working = true;
 773         if (r) {
 774                 dev_err(rdev->dev, "IB initialization failed (%d).\n", r);
 775                 rdev->accel_working = false;
 776         }
 777
 778         r = rs690_startup(rdev);
 779         if (r) {
 780                 /* Somethings want wront with the accel init stop accel */
 781                 dev_err(rdev->dev, "Disabling GPU acceleration\n");
 782                 r100_cp_fini(rdev);
 783                 radeon_wb_fini(rdev);
 784                 r100_ib_fini(rdev);
 785                 rs400_gart_fini(rdev);
 786                 radeon_irq_kms_fini(rdev);
 787                 rdev->accel_working = false;
 788         }
 789         return 0;
 790 }