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 "atom.h"
  31 #include "rs690d.h"
  32
  33 static int rs690_mc_wait_for_idle(struct radeon_device *rdev)
  34 {
  35         unsigned i;
  36         uint32_t tmp;
  37
  38         for (i = 0; i < rdev->usec_timeout; i++) {
  39                 /* read MC_STATUS */
  40                 tmp = RREG32_MC(R_000090_MC_SYSTEM_STATUS);
  41                 if (G_000090_MC_SYSTEM_IDLE(tmp))
  42                         return 0;
  43                 udelay(1);
  44         }
  45         return -1;
  46 }
  47
  48 static void rs690_gpu_init(struct radeon_device *rdev)
  49 {
  50         /* FIXME: HDP same place on rs690 ? */
  51         r100_hdp_reset(rdev);
  52         /* FIXME: is this correct ? */
  53         r420_pipes_init(rdev);
  54         if (rs690_mc_wait_for_idle(rdev)) {
  55                 printk(KERN_WARNING "Failed to wait MC idle while "
  56                        "programming pipes. Bad things might happen.\n");
  57         }
  58 }
  59
  60 void rs690_pm_info(struct radeon_device *rdev)
  61 {
  62         int index = GetIndexIntoMasterTable(DATA, IntegratedSystemInfo);
  63         struct _ATOM_INTEGRATED_SYSTEM_INFO *info;
  64         struct _ATOM_INTEGRATED_SYSTEM_INFO_V2 *info_v2;
  65         void *ptr;
  66         uint16_t data_offset;
  67         uint8_t frev, crev;
  68         fixed20_12 tmp;
  69
  70         atom_parse_data_header(rdev->mode_info.atom_context, index, NULL,
  71                                &frev, &crev, &data_offset);
  72         ptr = rdev->mode_info.atom_context->bios + data_offset;
  73         info = (struct _ATOM_INTEGRATED_SYSTEM_INFO *)ptr;
  74         info_v2 = (struct _ATOM_INTEGRATED_SYSTEM_INFO_V2 *)ptr;
  75         /* Get various system informations from bios */
  76         switch (crev) {
  77         case 1:
  78                 tmp.full = rfixed_const(100);
  79                 rdev->pm.igp_sideport_mclk.full = rfixed_const(info->ulBootUpMemoryClock);
  80                 rdev->pm.igp_sideport_mclk.full = rfixed_div(rdev->pm.igp_sideport_mclk, tmp);
  81                 rdev->pm.igp_system_mclk.full = rfixed_const(le16_to_cpu(info->usK8MemoryClock));
  82                 rdev->pm.igp_ht_link_clk.full = rfixed_const(le16_to_cpu(info->usFSBClock));
  83                 rdev->pm.igp_ht_link_width.full = rfixed_const(info->ucHTLinkWidth);
  84                 break;
  85         case 2:
  86                 tmp.full = rfixed_const(100);
  87                 rdev->pm.igp_sideport_mclk.full = rfixed_const(info_v2->ulBootUpSidePortClock);
  88                 rdev->pm.igp_sideport_mclk.full = rfixed_div(rdev->pm.igp_sideport_mclk, tmp);
  89                 rdev->pm.igp_system_mclk.full = rfixed_const(info_v2->ulBootUpUMAClock);
  90                 rdev->pm.igp_system_mclk.full = rfixed_div(rdev->pm.igp_system_mclk, tmp);
  91                 rdev->pm.igp_ht_link_clk.full = rfixed_const(info_v2->ulHTLinkFreq);
  92                 rdev->pm.igp_ht_link_clk.full = rfixed_div(rdev->pm.igp_ht_link_clk, tmp);
  93                 rdev->pm.igp_ht_link_width.full = rfixed_const(le16_to_cpu(info_v2->usMinHTLinkWidth));
  94                 break;
  95         default:
  96                 tmp.full = rfixed_const(100);
  97                 /* We assume the slower possible clock ie worst case */
  98                 /* DDR 333Mhz */
  99                 rdev->pm.igp_sideport_mclk.full = rfixed_const(333);
 100                 /* FIXME: system clock ? */
 101                 rdev->pm.igp_system_mclk.full = rfixed_const(100);
 102                 rdev->pm.igp_system_mclk.full = rfixed_div(rdev->pm.igp_system_mclk, tmp);
 103                 rdev->pm.igp_ht_link_clk.full = rfixed_const(200);
 104                 rdev->pm.igp_ht_link_width.full = rfixed_const(8);
 105                 DRM_ERROR("No integrated system info for your GPU, using safe default\n");
 106                 break;
 107         }
 108         /* Compute various bandwidth */
 109         /* k8_bandwidth = (memory_clk / 2) * 2 * 8 * 0.5 = memory_clk * 4  */
 110         tmp.full = rfixed_const(4);
 111         rdev->pm.k8_bandwidth.full = rfixed_mul(rdev->pm.igp_system_mclk, tmp);
 112         /* ht_bandwidth = ht_clk * 2 * ht_width / 8 * 0.8
 113          *              = ht_clk * ht_width / 5
 114          */
 115         tmp.full = rfixed_const(5);
 116         rdev->pm.ht_bandwidth.full = rfixed_mul(rdev->pm.igp_ht_link_clk,
 117                                                 rdev->pm.igp_ht_link_width);
 118         rdev->pm.ht_bandwidth.full = rfixed_div(rdev->pm.ht_bandwidth, tmp);
 119         if (tmp.full < rdev->pm.max_bandwidth.full) {
 120                 /* HT link is a limiting factor */
 121                 rdev->pm.max_bandwidth.full = tmp.full;
 122         }
 123         /* sideport_bandwidth = (sideport_clk / 2) * 2 * 2 * 0.7
 124          *                    = (sideport_clk * 14) / 10
 125          */
 126         tmp.full = rfixed_const(14);
 127         rdev->pm.sideport_bandwidth.full = rfixed_mul(rdev->pm.igp_sideport_mclk, tmp);
 128         tmp.full = rfixed_const(10);
 129         rdev->pm.sideport_bandwidth.full = rfixed_div(rdev->pm.sideport_bandwidth, tmp);
 130 }
 131
 132 void rs690_vram_info(struct radeon_device *rdev)
 133 {
 134         fixed20_12 a;
 135
 136         rs400_gart_adjust_size(rdev);
 137
 138         rdev->mc.vram_is_ddr = true;
 139         rdev->mc.vram_width = 128;
 140
 141         rdev->mc.real_vram_size = RREG32(RADEON_CONFIG_MEMSIZE);
 142         rdev->mc.mc_vram_size = rdev->mc.real_vram_size;
 143
 144         rdev->mc.aper_base = drm_get_resource_start(rdev->ddev, 0);
 145         rdev->mc.aper_size = drm_get_resource_len(rdev->ddev, 0);
 146
 147         if (rdev->mc.mc_vram_size > rdev->mc.aper_size)
 148                 rdev->mc.mc_vram_size = rdev->mc.aper_size;
 149
 150         if (rdev->mc.real_vram_size > rdev->mc.aper_size)
 151                 rdev->mc.real_vram_size = rdev->mc.aper_size;
 152
 153         rs690_pm_info(rdev);
 154         /* FIXME: we should enforce default clock in case GPU is not in
 155          * default setup
 156          */
 157         a.full = rfixed_const(100);
 158         rdev->pm.sclk.full = rfixed_const(rdev->clock.default_sclk);
 159         rdev->pm.sclk.full = rfixed_div(rdev->pm.sclk, a);
 160         a.full = rfixed_const(16);
 161         /* core_bandwidth = sclk(Mhz) * 16 */
 162         rdev->pm.core_bandwidth.full = rfixed_div(rdev->pm.sclk, a);
 163 }
 164
 165 static int rs690_mc_init(struct radeon_device *rdev)
 166 {
 167         int r;
 168         u32 tmp;
 169
 170         /* Setup GPU memory space */
 171         tmp = RREG32_MC(R_000100_MCCFG_FB_LOCATION);
 172         rdev->mc.vram_location = G_000100_MC_FB_START(tmp) << 16;
 173         rdev->mc.gtt_location = 0xFFFFFFFFUL;
 174         r = radeon_mc_setup(rdev);
 175         if (r)
 176                 return r;
 177         return 0;
 178 }
 179
 180 void rs690_line_buffer_adjust(struct radeon_device *rdev,
 181                               struct drm_display_mode *mode1,
 182                               struct drm_display_mode *mode2)
 183 {
 184         u32 tmp;
 185
 186         /*
 187          * Line Buffer Setup
 188          * There is a single line buffer shared by both display controllers.
 189          * R_006520_DC_LB_MEMORY_SPLIT controls how that line buffer is shared between
 190          * the display controllers.  The paritioning can either be done
 191          * manually or via one of four preset allocations specified in bits 1:0:
 192          *  0 - line buffer is divided in half and shared between crtc
 193          *  1 - D1 gets 3/4 of the line buffer, D2 gets 1/4
 194          *  2 - D1 gets the whole buffer
 195          *  3 - D1 gets 1/4 of the line buffer, D2 gets 3/4
 196          * Setting bit 2 of R_006520_DC_LB_MEMORY_SPLIT controls switches to manual
 197          * allocation mode. In manual allocation mode, D1 always starts at 0,
 198          * D1 end/2 is specified in bits 14:4; D2 allocation follows D1.
 199          */
 200         tmp = RREG32(R_006520_DC_LB_MEMORY_SPLIT) & C_006520_DC_LB_MEMORY_SPLIT;
 201         tmp &= ~C_006520_DC_LB_MEMORY_SPLIT_MODE;
 202         /* auto */
 203         if (mode1 && mode2) {
 204                 if (mode1->hdisplay > mode2->hdisplay) {
 205                         if (mode1->hdisplay > 2560)
 206                                 tmp |= V_006520_DC_LB_MEMORY_SPLIT_D1_3Q_D2_1Q;
 207                         else
 208                                 tmp |= V_006520_DC_LB_MEMORY_SPLIT_D1HALF_D2HALF;
 209                 } else if (mode2->hdisplay > mode1->hdisplay) {
 210                         if (mode2->hdisplay > 2560)
 211                                 tmp |= V_006520_DC_LB_MEMORY_SPLIT_D1_1Q_D2_3Q;
 212                         else
 213                                 tmp |= V_006520_DC_LB_MEMORY_SPLIT_D1HALF_D2HALF;
 214                 } else
 215                         tmp |= V_006520_DC_LB_MEMORY_SPLIT_D1HALF_D2HALF;
 216         } else if (mode1) {
 217                 tmp |= V_006520_DC_LB_MEMORY_SPLIT_D1_ONLY;
 218         } else if (mode2) {
 219                 tmp |= V_006520_DC_LB_MEMORY_SPLIT_D1_1Q_D2_3Q;
 220         }
 221         WREG32(R_006520_DC_LB_MEMORY_SPLIT, tmp);
 222 }
 223
 224 struct rs690_watermark {
 225         u32        lb_request_fifo_depth;
 226         fixed20_12 num_line_pair;
 227         fixed20_12 estimated_width;
 228         fixed20_12 worst_case_latency;
 229         fixed20_12 consumption_rate;
 230         fixed20_12 active_time;
 231         fixed20_12 dbpp;
 232         fixed20_12 priority_mark_max;
 233         fixed20_12 priority_mark;
 234         fixed20_12 sclk;
 235 };
 236
 237 void rs690_crtc_bandwidth_compute(struct radeon_device *rdev,
 238                                   struct radeon_crtc *crtc,
 239                                   struct rs690_watermark *wm)
 240 {
 241         struct drm_display_mode *mode = &crtc->base.mode;
 242         fixed20_12 a, b, c;
 243         fixed20_12 pclk, request_fifo_depth, tolerable_latency, estimated_width;
 244         fixed20_12 consumption_time, line_time, chunk_time, read_delay_latency;
 245         /* FIXME: detect IGP with sideport memory, i don't think there is any
 246          * such product available
 247          */
 248         bool sideport = false;
 249
 250         if (!crtc->base.enabled) {
 251                 /* FIXME: wouldn't it better to set priority mark to maximum */
 252                 wm->lb_request_fifo_depth = 4;
 253                 return;
 254         }
 255
 256         if (crtc->vsc.full > rfixed_const(2))
 257                 wm->num_line_pair.full = rfixed_const(2);
 258         else
 259                 wm->num_line_pair.full = rfixed_const(1);
 260
 261         b.full = rfixed_const(mode->crtc_hdisplay);
 262         c.full = rfixed_const(256);
 263         a.full = rfixed_div(b, c);
 264         request_fifo_depth.full = rfixed_mul(a, wm->num_line_pair);
 265         request_fifo_depth.full = rfixed_ceil(request_fifo_depth);
 266         if (a.full < rfixed_const(4)) {
 267                 wm->lb_request_fifo_depth = 4;
 268         } else {
 269                 wm->lb_request_fifo_depth = rfixed_trunc(request_fifo_depth);
 270         }
 271
 272         /* Determine consumption rate
 273          *  pclk = pixel clock period(ns) = 1000 / (mode.clock / 1000)
 274          *  vtaps = number of vertical taps,
 275          *  vsc = vertical scaling ratio, defined as source/destination
 276          *  hsc = horizontal scaling ration, defined as source/destination
 277          */
 278         a.full = rfixed_const(mode->clock);
 279         b.full = rfixed_const(1000);
 280         a.full = rfixed_div(a, b);
 281         pclk.full = rfixed_div(b, a);
 282         if (crtc->rmx_type != RMX_OFF) {
 283                 b.full = rfixed_const(2);
 284                 if (crtc->vsc.full > b.full)
 285                         b.full = crtc->vsc.full;
 286                 b.full = rfixed_mul(b, crtc->hsc);
 287                 c.full = rfixed_const(2);
 288                 b.full = rfixed_div(b, c);
 289                 consumption_time.full = rfixed_div(pclk, b);
 290         } else {
 291                 consumption_time.full = pclk.full;
 292         }
 293         a.full = rfixed_const(1);
 294         wm->consumption_rate.full = rfixed_div(a, consumption_time);
 295
 296
 297         /* Determine line time
 298          *  LineTime = total time for one line of displayhtotal
 299          *  LineTime = total number of horizontal pixels
 300          *  pclk = pixel clock period(ns)
 301          */
 302         a.full = rfixed_const(crtc->base.mode.crtc_htotal);
 303         line_time.full = rfixed_mul(a, pclk);
 304
 305         /* Determine active time
 306          *  ActiveTime = time of active region of display within one line,
 307          *  hactive = total number of horizontal active pixels
 308          *  htotal = total number of horizontal pixels
 309          */
 310         a.full = rfixed_const(crtc->base.mode.crtc_htotal);
 311         b.full = rfixed_const(crtc->base.mode.crtc_hdisplay);
 312         wm->active_time.full = rfixed_mul(line_time, b);
 313         wm->active_time.full = rfixed_div(wm->active_time, a);
 314
 315         /* Maximun bandwidth is the minimun bandwidth of all component */
 316         rdev->pm.max_bandwidth = rdev->pm.core_bandwidth;
 317         if (sideport) {
 318                 if (rdev->pm.max_bandwidth.full > rdev->pm.sideport_bandwidth.full &&
 319                         rdev->pm.sideport_bandwidth.full)
 320                         rdev->pm.max_bandwidth = rdev->pm.sideport_bandwidth;
 321                 read_delay_latency.full = rfixed_const(370 * 800 * 1000);
 322                 read_delay_latency.full = rfixed_div(read_delay_latency,
 323                         rdev->pm.igp_sideport_mclk);
 324         } else {
 325                 if (rdev->pm.max_bandwidth.full > rdev->pm.k8_bandwidth.full &&
 326                         rdev->pm.k8_bandwidth.full)
 327                         rdev->pm.max_bandwidth = rdev->pm.k8_bandwidth;
 328                 if (rdev->pm.max_bandwidth.full > rdev->pm.ht_bandwidth.full &&
 329                         rdev->pm.ht_bandwidth.full)
 330                         rdev->pm.max_bandwidth = rdev->pm.ht_bandwidth;
 331                 read_delay_latency.full = rfixed_const(5000);
 332         }
 333
 334         /* sclk = system clocks(ns) = 1000 / max_bandwidth / 16 */
 335         a.full = rfixed_const(16);
 336         rdev->pm.sclk.full = rfixed_mul(rdev->pm.max_bandwidth, a);
 337         a.full = rfixed_const(1000);
 338         rdev->pm.sclk.full = rfixed_div(a, rdev->pm.sclk);
 339         /* Determine chunk time
 340          * ChunkTime = the time it takes the DCP to send one chunk of data
 341          * to the LB which consists of pipeline delay and inter chunk gap
 342          * sclk = system clock(ns)
 343          */
 344         a.full = rfixed_const(256 * 13);
 345         chunk_time.full = rfixed_mul(rdev->pm.sclk, a);
 346         a.full = rfixed_const(10);
 347         chunk_time.full = rfixed_div(chunk_time, a);
 348
 349         /* Determine the worst case latency
 350          * NumLinePair = Number of line pairs to request(1=2 lines, 2=4 lines)
 351          * WorstCaseLatency = worst case time from urgent to when the MC starts
 352          *                    to return data
 353          * READ_DELAY_IDLE_MAX = constant of 1us
 354          * ChunkTime = time it takes the DCP to send one chunk of data to the LB
 355          *             which consists of pipeline delay and inter chunk gap
 356          */
 357         if (rfixed_trunc(wm->num_line_pair) > 1) {
 358                 a.full = rfixed_const(3);
 359                 wm->worst_case_latency.full = rfixed_mul(a, chunk_time);
 360                 wm->worst_case_latency.full += read_delay_latency.full;
 361         } else {
 362                 a.full = rfixed_const(2);
 363                 wm->worst_case_latency.full = rfixed_mul(a, chunk_time);
 364                 wm->worst_case_latency.full += read_delay_latency.full;
 365         }
 366
 367         /* Determine the tolerable latency
 368          * TolerableLatency = Any given request has only 1 line time
 369          *                    for the data to be returned
 370          * LBRequestFifoDepth = Number of chunk requests the LB can
 371          *                      put into the request FIFO for a display
 372          *  LineTime = total time for one line of display
 373          *  ChunkTime = the time it takes the DCP to send one chunk
 374          *              of data to the LB which consists of
 375          *  pipeline delay and inter chunk gap
 376          */
 377         if ((2+wm->lb_request_fifo_depth) >= rfixed_trunc(request_fifo_depth)) {
 378                 tolerable_latency.full = line_time.full;
 379         } else {
 380                 tolerable_latency.full = rfixed_const(wm->lb_request_fifo_depth - 2);
 381                 tolerable_latency.full = request_fifo_depth.full - tolerable_latency.full;
 382                 tolerable_latency.full = rfixed_mul(tolerable_latency, chunk_time);
 383                 tolerable_latency.full = line_time.full - tolerable_latency.full;
 384         }
 385         /* We assume worst case 32bits (4 bytes) */
 386         wm->dbpp.full = rfixed_const(4 * 8);
 387
 388         /* Determine the maximum priority mark
 389          *  width = viewport width in pixels
 390          */
 391         a.full = rfixed_const(16);
 392         wm->priority_mark_max.full = rfixed_const(crtc->base.mode.crtc_hdisplay);
 393         wm->priority_mark_max.full = rfixed_div(wm->priority_mark_max, a);
 394         wm->priority_mark_max.full = rfixed_ceil(wm->priority_mark_max);
 395
 396         /* Determine estimated width */
 397         estimated_width.full = tolerable_latency.full - wm->worst_case_latency.full;
 398         estimated_width.full = rfixed_div(estimated_width, consumption_time);
 399         if (rfixed_trunc(estimated_width) > crtc->base.mode.crtc_hdisplay) {
 400                 wm->priority_mark.full = rfixed_const(10);
 401         } else {
 402                 a.full = rfixed_const(16);
 403                 wm->priority_mark.full = rfixed_div(estimated_width, a);
 404                 wm->priority_mark.full = rfixed_ceil(wm->priority_mark);
 405                 wm->priority_mark.full = wm->priority_mark_max.full - wm->priority_mark.full;
 406         }
 407 }
 408
 409 void rs690_bandwidth_update(struct radeon_device *rdev)
 410 {
 411         struct drm_display_mode *mode0 = NULL;
 412         struct drm_display_mode *mode1 = NULL;
 413         struct rs690_watermark wm0;
 414         struct rs690_watermark wm1;
 415         u32 tmp;
 416         fixed20_12 priority_mark02, priority_mark12, fill_rate;
 417         fixed20_12 a, b;
 418
 419         if (rdev->mode_info.crtcs[0]->base.enabled)
 420                 mode0 = &rdev->mode_info.crtcs[0]->base.mode;
 421         if (rdev->mode_info.crtcs[1]->base.enabled)
 422                 mode1 = &rdev->mode_info.crtcs[1]->base.mode;
 423         /*
 424          * Set display0/1 priority up in the memory controller for
 425          * modes if the user specifies HIGH for displaypriority
 426          * option.
 427          */
 428         if (rdev->disp_priority == 2) {
 429                 tmp = RREG32_MC(R_000104_MC_INIT_MISC_LAT_TIMER);
 430                 tmp &= C_000104_MC_DISP0R_INIT_LAT;
 431                 tmp &= C_000104_MC_DISP1R_INIT_LAT;
 432                 if (mode0)
 433                         tmp |= S_000104_MC_DISP0R_INIT_LAT(1);
 434                 if (mode1)
 435                         tmp |= S_000104_MC_DISP1R_INIT_LAT(1);
 436                 WREG32_MC(R_000104_MC_INIT_MISC_LAT_TIMER, tmp);
 437         }
 438         rs690_line_buffer_adjust(rdev, mode0, mode1);
 439
 440         if ((rdev->family == CHIP_RS690) || (rdev->family == CHIP_RS740))
 441                 WREG32(R_006C9C_DCP_CONTROL, 0);
 442         if ((rdev->family == CHIP_RS780) || (rdev->family == CHIP_RS880))
 443                 WREG32(R_006C9C_DCP_CONTROL, 2);
 444
 445         rs690_crtc_bandwidth_compute(rdev, rdev->mode_info.crtcs[0], &wm0);
 446         rs690_crtc_bandwidth_compute(rdev, rdev->mode_info.crtcs[1], &wm1);
 447
 448         tmp = (wm0.lb_request_fifo_depth - 1);
 449         tmp |= (wm1.lb_request_fifo_depth - 1) << 16;
 450         WREG32(R_006D58_LB_MAX_REQ_OUTSTANDING, tmp);
 451
 452         if (mode0 && mode1) {
 453                 if (rfixed_trunc(wm0.dbpp) > 64)
 454                         a.full = rfixed_mul(wm0.dbpp, wm0.num_line_pair);
 455                 else
 456                         a.full = wm0.num_line_pair.full;
 457                 if (rfixed_trunc(wm1.dbpp) > 64)
 458                         b.full = rfixed_mul(wm1.dbpp, wm1.num_line_pair);
 459                 else
 460                         b.full = wm1.num_line_pair.full;
 461                 a.full += b.full;
 462                 fill_rate.full = rfixed_div(wm0.sclk, a);
 463                 if (wm0.consumption_rate.full > fill_rate.full) {
 464                         b.full = wm0.consumption_rate.full - fill_rate.full;
 465                         b.full = rfixed_mul(b, wm0.active_time);
 466                         a.full = rfixed_mul(wm0.worst_case_latency,
 467                                                 wm0.consumption_rate);
 468                         a.full = a.full + b.full;
 469                         b.full = rfixed_const(16 * 1000);
 470                         priority_mark02.full = rfixed_div(a, b);
 471                 } else {
 472                         a.full = rfixed_mul(wm0.worst_case_latency,
 473                                                 wm0.consumption_rate);
 474                         b.full = rfixed_const(16 * 1000);
 475                         priority_mark02.full = rfixed_div(a, b);
 476                 }
 477                 if (wm1.consumption_rate.full > fill_rate.full) {
 478                         b.full = wm1.consumption_rate.full - fill_rate.full;
 479                         b.full = rfixed_mul(b, wm1.active_time);
 480                         a.full = rfixed_mul(wm1.worst_case_latency,
 481                                                 wm1.consumption_rate);
 482                         a.full = a.full + b.full;
 483                         b.full = rfixed_const(16 * 1000);
 484                         priority_mark12.full = rfixed_div(a, b);
 485                 } else {
 486                         a.full = rfixed_mul(wm1.worst_case_latency,
 487                                                 wm1.consumption_rate);
 488                         b.full = rfixed_const(16 * 1000);
 489                         priority_mark12.full = rfixed_div(a, b);
 490                 }
 491                 if (wm0.priority_mark.full > priority_mark02.full)
 492                         priority_mark02.full = wm0.priority_mark.full;
 493                 if (rfixed_trunc(priority_mark02) < 0)
 494                         priority_mark02.full = 0;
 495                 if (wm0.priority_mark_max.full > priority_mark02.full)
 496                         priority_mark02.full = wm0.priority_mark_max.full;
 497                 if (wm1.priority_mark.full > priority_mark12.full)
 498                         priority_mark12.full = wm1.priority_mark.full;
 499                 if (rfixed_trunc(priority_mark12) < 0)
 500                         priority_mark12.full = 0;
 501                 if (wm1.priority_mark_max.full > priority_mark12.full)
 502                         priority_mark12.full = wm1.priority_mark_max.full;
 503                 WREG32(R_006548_D1MODE_PRIORITY_A_CNT, rfixed_trunc(priority_mark02));
 504                 WREG32(R_00654C_D1MODE_PRIORITY_B_CNT, rfixed_trunc(priority_mark02));
 505                 WREG32(R_006D48_D2MODE_PRIORITY_A_CNT, rfixed_trunc(priority_mark12));
 506                 WREG32(R_006D4C_D2MODE_PRIORITY_B_CNT, rfixed_trunc(priority_mark12));
 507         } else if (mode0) {
 508                 if (rfixed_trunc(wm0.dbpp) > 64)
 509                         a.full = rfixed_mul(wm0.dbpp, wm0.num_line_pair);
 510                 else
 511                         a.full = wm0.num_line_pair.full;
 512                 fill_rate.full = rfixed_div(wm0.sclk, a);
 513                 if (wm0.consumption_rate.full > fill_rate.full) {
 514                         b.full = wm0.consumption_rate.full - fill_rate.full;
 515                         b.full = rfixed_mul(b, wm0.active_time);
 516                         a.full = rfixed_mul(wm0.worst_case_latency,
 517                                                 wm0.consumption_rate);
 518                         a.full = a.full + b.full;
 519                         b.full = rfixed_const(16 * 1000);
 520                         priority_mark02.full = rfixed_div(a, b);
 521                 } else {
 522                         a.full = rfixed_mul(wm0.worst_case_latency,
 523                                                 wm0.consumption_rate);
 524                         b.full = rfixed_const(16 * 1000);
 525                         priority_mark02.full = rfixed_div(a, b);
 526                 }
 527                 if (wm0.priority_mark.full > priority_mark02.full)
 528                         priority_mark02.full = wm0.priority_mark.full;
 529                 if (rfixed_trunc(priority_mark02) < 0)
 530                         priority_mark02.full = 0;
 531                 if (wm0.priority_mark_max.full > priority_mark02.full)
 532                         priority_mark02.full = wm0.priority_mark_max.full;
 533                 WREG32(R_006548_D1MODE_PRIORITY_A_CNT, rfixed_trunc(priority_mark02));
 534                 WREG32(R_00654C_D1MODE_PRIORITY_B_CNT, rfixed_trunc(priority_mark02));
 535                 WREG32(R_006D48_D2MODE_PRIORITY_A_CNT,
 536                         S_006D48_D2MODE_PRIORITY_A_OFF(1));
 537                 WREG32(R_006D4C_D2MODE_PRIORITY_B_CNT,
 538                         S_006D4C_D2MODE_PRIORITY_B_OFF(1));
 539         } else {
 540                 if (rfixed_trunc(wm1.dbpp) > 64)
 541                         a.full = rfixed_mul(wm1.dbpp, wm1.num_line_pair);
 542                 else
 543                         a.full = wm1.num_line_pair.full;
 544                 fill_rate.full = rfixed_div(wm1.sclk, a);
 545                 if (wm1.consumption_rate.full > fill_rate.full) {
 546                         b.full = wm1.consumption_rate.full - fill_rate.full;
 547                         b.full = rfixed_mul(b, wm1.active_time);
 548                         a.full = rfixed_mul(wm1.worst_case_latency,
 549                                                 wm1.consumption_rate);
 550                         a.full = a.full + b.full;
 551                         b.full = rfixed_const(16 * 1000);
 552                         priority_mark12.full = rfixed_div(a, b);
 553                 } else {
 554                         a.full = rfixed_mul(wm1.worst_case_latency,
 555                                                 wm1.consumption_rate);
 556                         b.full = rfixed_const(16 * 1000);
 557                         priority_mark12.full = rfixed_div(a, b);
 558                 }
 559                 if (wm1.priority_mark.full > priority_mark12.full)
 560                         priority_mark12.full = wm1.priority_mark.full;
 561                 if (rfixed_trunc(priority_mark12) < 0)
 562                         priority_mark12.full = 0;
 563                 if (wm1.priority_mark_max.full > priority_mark12.full)
 564                         priority_mark12.full = wm1.priority_mark_max.full;
 565                 WREG32(R_006548_D1MODE_PRIORITY_A_CNT,
 566                         S_006548_D1MODE_PRIORITY_A_OFF(1));
 567                 WREG32(R_00654C_D1MODE_PRIORITY_B_CNT,
 568                         S_00654C_D1MODE_PRIORITY_B_OFF(1));
 569                 WREG32(R_006D48_D2MODE_PRIORITY_A_CNT, rfixed_trunc(priority_mark12));
 570                 WREG32(R_006D4C_D2MODE_PRIORITY_B_CNT, rfixed_trunc(priority_mark12));
 571         }
 572 }
 573
 574 uint32_t rs690_mc_rreg(struct radeon_device *rdev, uint32_t reg)
 575 {
 576         uint32_t r;
 577
 578         WREG32(R_000078_MC_INDEX, S_000078_MC_IND_ADDR(reg));
 579         r = RREG32(R_00007C_MC_DATA);
 580         WREG32(R_000078_MC_INDEX, ~C_000078_MC_IND_ADDR);
 581         return r;
 582 }
 583
 584 void rs690_mc_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v)
 585 {
 586         WREG32(R_000078_MC_INDEX, S_000078_MC_IND_ADDR(reg) |
 587                 S_000078_MC_IND_WR_EN(1));
 588         WREG32(R_00007C_MC_DATA, v);
 589         WREG32(R_000078_MC_INDEX, 0x7F);
 590 }
 591
 592 void rs690_mc_program(struct radeon_device *rdev)
 593 {
 594         struct rv515_mc_save save;
 595
 596         /* Stops all mc clients */
 597         rv515_mc_stop(rdev, &save);
 598
 599         /* Wait for mc idle */
 600         if (rs690_mc_wait_for_idle(rdev))
 601                 dev_warn(rdev->dev, "Wait MC idle timeout before updating MC.\n");
 602         /* Program MC, should be a 32bits limited address space */
 603         WREG32_MC(R_000100_MCCFG_FB_LOCATION,
 604                         S_000100_MC_FB_START(rdev->mc.vram_start >> 16) |
 605                         S_000100_MC_FB_TOP(rdev->mc.vram_end >> 16));
 606         WREG32(R_000134_HDP_FB_LOCATION,
 607                 S_000134_HDP_FB_START(rdev->mc.vram_start >> 16));
 608
 609         rv515_mc_resume(rdev, &save);
 610 }
 611
 612 static int rs690_startup(struct radeon_device *rdev)
 613 {
 614         int r;
 615
 616         rs690_mc_program(rdev);
 617         /* Resume clock */
 618         rv515_clock_startup(rdev);
 619         /* Initialize GPU configuration (# pipes, ...) */
 620         rs690_gpu_init(rdev);
 621         /* Initialize GART (initialize after TTM so we can allocate
 622          * memory through TTM but finalize after TTM) */
 623         r = rs400_gart_enable(rdev);
 624         if (r)
 625                 return r;
 626         /* Enable IRQ */
 627         rs600_irq_set(rdev);
 628         /* 1M ring buffer */
 629         r = r100_cp_init(rdev, 1024 * 1024);
 630         if (r) {
 631                 dev_err(rdev->dev, "failled initializing CP (%d).\n", r);
 632                 return r;
 633         }
 634         r = r100_wb_init(rdev);
 635         if (r)
 636                 dev_err(rdev->dev, "failled initializing WB (%d).\n", r);
 637         r = r100_ib_init(rdev);
 638         if (r) {
 639                 dev_err(rdev->dev, "failled initializing IB (%d).\n", r);
 640                 return r;
 641         }
 642         return 0;
 643 }
 644
 645 int rs690_resume(struct radeon_device *rdev)
 646 {
 647         /* Make sur GART are not working */
 648         rs400_gart_disable(rdev);
 649         /* Resume clock before doing reset */
 650         rv515_clock_startup(rdev);
 651         /* Reset gpu before posting otherwise ATOM will enter infinite loop */
 652         if (radeon_gpu_reset(rdev)) {
 653                 dev_warn(rdev->dev, "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
 654                         RREG32(R_000E40_RBBM_STATUS),
 655                         RREG32(R_0007C0_CP_STAT));
 656         }
 657         /* post */
 658         atom_asic_init(rdev->mode_info.atom_context);
 659         /* Resume clock after posting */
 660         rv515_clock_startup(rdev);
 661         /* Initialize surface registers */
 662         radeon_surface_init(rdev);
 663         return rs690_startup(rdev);
 664 }
 665
 666 int rs690_suspend(struct radeon_device *rdev)
 667 {
 668         r100_cp_disable(rdev);
 669         r100_wb_disable(rdev);
 670         rs600_irq_disable(rdev);
 671         rs400_gart_disable(rdev);
 672         return 0;
 673 }
 674
 675 void rs690_fini(struct radeon_device *rdev)
 676 {
 677         rs690_suspend(rdev);
 678         r100_cp_fini(rdev);
 679         r100_wb_fini(rdev);
 680         r100_ib_fini(rdev);
 681         radeon_gem_fini(rdev);
 682         rs400_gart_fini(rdev);
 683         radeon_irq_kms_fini(rdev);
 684         radeon_fence_driver_fini(rdev);
 685         radeon_bo_fini(rdev);
 686         radeon_atombios_fini(rdev);
 687         kfree(rdev->bios);
 688         rdev->bios = NULL;
 689 }
 690
 691 int rs690_init(struct radeon_device *rdev)
 692 {
 693         int r;
 694
 695         /* Disable VGA */
 696         rv515_vga_render_disable(rdev);
 697         /* Initialize scratch registers */
 698         radeon_scratch_init(rdev);
 699         /* Initialize surface registers */
 700         radeon_surface_init(rdev);
 701         /* TODO: disable VGA need to use VGA request */
 702         /* BIOS*/
 703         if (!radeon_get_bios(rdev)) {
 704                 if (ASIC_IS_AVIVO(rdev))
 705                         return -EINVAL;
 706         }
 707         if (rdev->is_atom_bios) {
 708                 r = radeon_atombios_init(rdev);
 709                 if (r)
 710                         return r;
 711         } else {
 712                 dev_err(rdev->dev, "Expecting atombios for RV515 GPU\n");
 713                 return -EINVAL;
 714         }
 715         /* Reset gpu before posting otherwise ATOM will enter infinite loop */
 716         if (radeon_gpu_reset(rdev)) {
 717                 dev_warn(rdev->dev,
 718                         "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
 719                         RREG32(R_000E40_RBBM_STATUS),
 720                         RREG32(R_0007C0_CP_STAT));
 721         }
 722         /* check if cards are posted or not */
 723         if (radeon_boot_test_post_card(rdev) == false)
 724                 return -EINVAL;
 725
 726         /* Initialize clocks */
 727         radeon_get_clock_info(rdev->ddev);
 728         /* Initialize power management */
 729         radeon_pm_init(rdev);
 730         /* Get vram informations */
 731         rs690_vram_info(rdev);
 732         /* Initialize memory controller (also test AGP) */
 733         r = rs690_mc_init(rdev);
 734         if (r)
 735                 return r;
 736         rv515_debugfs(rdev);
 737         /* Fence driver */
 738         r = radeon_fence_driver_init(rdev);
 739         if (r)
 740                 return r;
 741         r = radeon_irq_kms_init(rdev);
 742         if (r)
 743                 return r;
 744         /* Memory manager */
 745         r = radeon_bo_init(rdev);
 746         if (r)
 747                 return r;
 748         r = rs400_gart_init(rdev);
 749         if (r)
 750                 return r;
 751         rs600_set_safe_registers(rdev);
 752         rdev->accel_working = true;
 753         r = rs690_startup(rdev);
 754         if (r) {
 755                 /* Somethings want wront with the accel init stop accel */
 756                 dev_err(rdev->dev, "Disabling GPU acceleration\n");
 757                 rs690_suspend(rdev);
 758                 r100_cp_fini(rdev);
 759                 r100_wb_fini(rdev);
 760                 r100_ib_fini(rdev);
 761                 rs400_gart_fini(rdev);
 762                 radeon_irq_kms_fini(rdev);
 763                 rdev->accel_working = false;
 764         }
 765         return 0;
 766 }