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 29 #include <linux/pci.h> 30 31 #include "atom.h" 32 #include "radeon.h" 33 #include "radeon_asic.h" 34 #include "radeon_audio.h" 35 #include "rs690d.h" 36 37 int rs690_mc_wait_for_idle(struct radeon_device *rdev) 38 { 39 unsigned i; 40 uint32_t tmp; 41 42 for (i = 0; i < rdev->usec_timeout; i++) { 43 /* read MC_STATUS */ 44 tmp = RREG32_MC(R_000090_MC_SYSTEM_STATUS); 45 if (G_000090_MC_SYSTEM_IDLE(tmp)) 46 return 0; 47 udelay(1); 48 } 49 return -1; 50 } 51 52 static void rs690_gpu_init(struct radeon_device *rdev) 53 { 54 /* FIXME: is this correct ? */ 55 r420_pipes_init(rdev); 56 if (rs690_mc_wait_for_idle(rdev)) { 57 pr_warn("Failed to wait MC idle while programming pipes. Bad things might happen.\n"); 58 } 59 } 60 61 union igp_info { 62 struct _ATOM_INTEGRATED_SYSTEM_INFO info; 63 struct _ATOM_INTEGRATED_SYSTEM_INFO_V2 info_v2; 64 }; 65 66 void rs690_pm_info(struct radeon_device *rdev) 67 { 68 int index = GetIndexIntoMasterTable(DATA, IntegratedSystemInfo); 69 union igp_info *info; 70 uint16_t data_offset; 71 uint8_t frev, crev; 72 fixed20_12 tmp; 73 74 if (atom_parse_data_header(rdev->mode_info.atom_context, index, NULL, 75 &frev, &crev, &data_offset)) { 76 info = (union igp_info *)(rdev->mode_info.atom_context->bios + data_offset); 77 78 /* Get various system informations from bios */ 79 switch (crev) { 80 case 1: 81 tmp.full = dfixed_const(100); 82 rdev->pm.igp_sideport_mclk.full = dfixed_const(le32_to_cpu(info->info.ulBootUpMemoryClock)); 83 rdev->pm.igp_sideport_mclk.full = dfixed_div(rdev->pm.igp_sideport_mclk, tmp); 84 if (le16_to_cpu(info->info.usK8MemoryClock)) 85 rdev->pm.igp_system_mclk.full = dfixed_const(le16_to_cpu(info->info.usK8MemoryClock)); 86 else if (rdev->clock.default_mclk) { 87 rdev->pm.igp_system_mclk.full = dfixed_const(rdev->clock.default_mclk); 88 rdev->pm.igp_system_mclk.full = dfixed_div(rdev->pm.igp_system_mclk, tmp); 89 } else 90 rdev->pm.igp_system_mclk.full = dfixed_const(400); 91 rdev->pm.igp_ht_link_clk.full = dfixed_const(le16_to_cpu(info->info.usFSBClock)); 92 rdev->pm.igp_ht_link_width.full = dfixed_const(info->info.ucHTLinkWidth); 93 break; 94 case 2: 95 tmp.full = dfixed_const(100); 96 rdev->pm.igp_sideport_mclk.full = dfixed_const(le32_to_cpu(info->info_v2.ulBootUpSidePortClock)); 97 rdev->pm.igp_sideport_mclk.full = dfixed_div(rdev->pm.igp_sideport_mclk, tmp); 98 if (le32_to_cpu(info->info_v2.ulBootUpUMAClock)) 99 rdev->pm.igp_system_mclk.full = dfixed_const(le32_to_cpu(info->info_v2.ulBootUpUMAClock)); 100 else if (rdev->clock.default_mclk) 101 rdev->pm.igp_system_mclk.full = dfixed_const(rdev->clock.default_mclk); 102 else 103 rdev->pm.igp_system_mclk.full = dfixed_const(66700); 104 rdev->pm.igp_system_mclk.full = dfixed_div(rdev->pm.igp_system_mclk, tmp); 105 rdev->pm.igp_ht_link_clk.full = dfixed_const(le32_to_cpu(info->info_v2.ulHTLinkFreq)); 106 rdev->pm.igp_ht_link_clk.full = dfixed_div(rdev->pm.igp_ht_link_clk, tmp); 107 rdev->pm.igp_ht_link_width.full = dfixed_const(le16_to_cpu(info->info_v2.usMinHTLinkWidth)); 108 break; 109 default: 110 /* We assume the slower possible clock ie worst case */ 111 rdev->pm.igp_sideport_mclk.full = dfixed_const(200); 112 rdev->pm.igp_system_mclk.full = dfixed_const(200); 113 rdev->pm.igp_ht_link_clk.full = dfixed_const(1000); 114 rdev->pm.igp_ht_link_width.full = dfixed_const(8); 115 DRM_ERROR("No integrated system info for your GPU, using safe default\n"); 116 break; 117 } 118 } else { 119 /* We assume the slower possible clock ie worst case */ 120 rdev->pm.igp_sideport_mclk.full = dfixed_const(200); 121 rdev->pm.igp_system_mclk.full = dfixed_const(200); 122 rdev->pm.igp_ht_link_clk.full = dfixed_const(1000); 123 rdev->pm.igp_ht_link_width.full = dfixed_const(8); 124 DRM_ERROR("No integrated system info for your GPU, using safe default\n"); 125 } 126 /* Compute various bandwidth */ 127 /* k8_bandwidth = (memory_clk / 2) * 2 * 8 * 0.5 = memory_clk * 4 */ 128 tmp.full = dfixed_const(4); 129 rdev->pm.k8_bandwidth.full = dfixed_mul(rdev->pm.igp_system_mclk, tmp); 130 /* ht_bandwidth = ht_clk * 2 * ht_width / 8 * 0.8 131 * = ht_clk * ht_width / 5 132 */ 133 tmp.full = dfixed_const(5); 134 rdev->pm.ht_bandwidth.full = dfixed_mul(rdev->pm.igp_ht_link_clk, 135 rdev->pm.igp_ht_link_width); 136 rdev->pm.ht_bandwidth.full = dfixed_div(rdev->pm.ht_bandwidth, tmp); 137 if (tmp.full < rdev->pm.max_bandwidth.full) { 138 /* HT link is a limiting factor */ 139 rdev->pm.max_bandwidth.full = tmp.full; 140 } 141 /* sideport_bandwidth = (sideport_clk / 2) * 2 * 2 * 0.7 142 * = (sideport_clk * 14) / 10 143 */ 144 tmp.full = dfixed_const(14); 145 rdev->pm.sideport_bandwidth.full = dfixed_mul(rdev->pm.igp_sideport_mclk, tmp); 146 tmp.full = dfixed_const(10); 147 rdev->pm.sideport_bandwidth.full = dfixed_div(rdev->pm.sideport_bandwidth, tmp); 148 } 149 150 static void rs690_mc_init(struct radeon_device *rdev) 151 { 152 u64 base; 153 uint32_t h_addr, l_addr; 154 unsigned long long k8_addr; 155 156 rs400_gart_adjust_size(rdev); 157 rdev->mc.vram_is_ddr = true; 158 rdev->mc.vram_width = 128; 159 rdev->mc.real_vram_size = RREG32(RADEON_CONFIG_MEMSIZE); 160 rdev->mc.mc_vram_size = rdev->mc.real_vram_size; 161 rdev->mc.aper_base = pci_resource_start(rdev->pdev, 0); 162 rdev->mc.aper_size = pci_resource_len(rdev->pdev, 0); 163 rdev->mc.visible_vram_size = rdev->mc.aper_size; 164 base = RREG32_MC(R_000100_MCCFG_FB_LOCATION); 165 base = G_000100_MC_FB_START(base) << 16; 166 rdev->mc.igp_sideport_enabled = radeon_atombios_sideport_present(rdev); 167 /* Some boards seem to be configured for 128MB of sideport memory, 168 * but really only have 64MB. Just skip the sideport and use 169 * UMA memory. 170 */ 171 if (rdev->mc.igp_sideport_enabled && 172 (rdev->mc.real_vram_size == (384 * 1024 * 1024))) { 173 base += 128 * 1024 * 1024; 174 rdev->mc.real_vram_size -= 128 * 1024 * 1024; 175 rdev->mc.mc_vram_size = rdev->mc.real_vram_size; 176 } 177 178 /* Use K8 direct mapping for fast fb access. */ 179 rdev->fastfb_working = false; 180 h_addr = G_00005F_K8_ADDR_EXT(RREG32_MC(R_00005F_MC_MISC_UMA_CNTL)); 181 l_addr = RREG32_MC(R_00001E_K8_FB_LOCATION); 182 k8_addr = ((unsigned long long)h_addr) << 32 | l_addr; 183 #if defined(CONFIG_X86_32) && !defined(CONFIG_X86_PAE) 184 if (k8_addr + rdev->mc.visible_vram_size < 0x100000000ULL) 185 #endif 186 { 187 /* FastFB shall be used with UMA memory. Here it is simply disabled when sideport 188 * memory is present. 189 */ 190 if (!rdev->mc.igp_sideport_enabled && radeon_fastfb == 1) { 191 DRM_INFO("Direct mapping: aper base at 0x%llx, replaced by direct mapping base 0x%llx.\n", 192 (unsigned long long)rdev->mc.aper_base, k8_addr); 193 rdev->mc.aper_base = (resource_size_t)k8_addr; 194 rdev->fastfb_working = true; 195 } 196 } 197 198 rs690_pm_info(rdev); 199 radeon_vram_location(rdev, &rdev->mc, base); 200 rdev->mc.gtt_base_align = rdev->mc.gtt_size - 1; 201 radeon_gtt_location(rdev, &rdev->mc); 202 radeon_update_bandwidth_info(rdev); 203 } 204 205 void rs690_line_buffer_adjust(struct radeon_device *rdev, 206 struct drm_display_mode *mode1, 207 struct drm_display_mode *mode2) 208 { 209 u32 tmp; 210 211 /* Guess line buffer size to be 8192 pixels */ 212 u32 lb_size = 8192; 213 214 /* 215 * Line Buffer Setup 216 * There is a single line buffer shared by both display controllers. 217 * R_006520_DC_LB_MEMORY_SPLIT controls how that line buffer is shared between 218 * the display controllers. The paritioning can either be done 219 * manually or via one of four preset allocations specified in bits 1:0: 220 * 0 - line buffer is divided in half and shared between crtc 221 * 1 - D1 gets 3/4 of the line buffer, D2 gets 1/4 222 * 2 - D1 gets the whole buffer 223 * 3 - D1 gets 1/4 of the line buffer, D2 gets 3/4 224 * Setting bit 2 of R_006520_DC_LB_MEMORY_SPLIT controls switches to manual 225 * allocation mode. In manual allocation mode, D1 always starts at 0, 226 * D1 end/2 is specified in bits 14:4; D2 allocation follows D1. 227 */ 228 tmp = RREG32(R_006520_DC_LB_MEMORY_SPLIT) & C_006520_DC_LB_MEMORY_SPLIT; 229 tmp &= ~C_006520_DC_LB_MEMORY_SPLIT_MODE; 230 /* auto */ 231 if (mode1 && mode2) { 232 if (mode1->hdisplay > mode2->hdisplay) { 233 if (mode1->hdisplay > 2560) 234 tmp |= V_006520_DC_LB_MEMORY_SPLIT_D1_3Q_D2_1Q; 235 else 236 tmp |= V_006520_DC_LB_MEMORY_SPLIT_D1HALF_D2HALF; 237 } else if (mode2->hdisplay > mode1->hdisplay) { 238 if (mode2->hdisplay > 2560) 239 tmp |= V_006520_DC_LB_MEMORY_SPLIT_D1_1Q_D2_3Q; 240 else 241 tmp |= V_006520_DC_LB_MEMORY_SPLIT_D1HALF_D2HALF; 242 } else 243 tmp |= V_006520_DC_LB_MEMORY_SPLIT_D1HALF_D2HALF; 244 } else if (mode1) { 245 tmp |= V_006520_DC_LB_MEMORY_SPLIT_D1_ONLY; 246 } else if (mode2) { 247 tmp |= V_006520_DC_LB_MEMORY_SPLIT_D1_1Q_D2_3Q; 248 } 249 WREG32(R_006520_DC_LB_MEMORY_SPLIT, tmp); 250 251 /* Save number of lines the linebuffer leads before the scanout */ 252 if (mode1) 253 rdev->mode_info.crtcs[0]->lb_vblank_lead_lines = DIV_ROUND_UP(lb_size, mode1->crtc_hdisplay); 254 255 if (mode2) 256 rdev->mode_info.crtcs[1]->lb_vblank_lead_lines = DIV_ROUND_UP(lb_size, mode2->crtc_hdisplay); 257 } 258 259 struct rs690_watermark { 260 u32 lb_request_fifo_depth; 261 fixed20_12 num_line_pair; 262 fixed20_12 estimated_width; 263 fixed20_12 worst_case_latency; 264 fixed20_12 consumption_rate; 265 fixed20_12 active_time; 266 fixed20_12 dbpp; 267 fixed20_12 priority_mark_max; 268 fixed20_12 priority_mark; 269 fixed20_12 sclk; 270 }; 271 272 static void rs690_crtc_bandwidth_compute(struct radeon_device *rdev, 273 struct radeon_crtc *crtc, 274 struct rs690_watermark *wm, 275 bool low) 276 { 277 struct drm_display_mode *mode = &crtc->base.mode; 278 fixed20_12 a, b, c; 279 fixed20_12 pclk, request_fifo_depth, tolerable_latency, estimated_width; 280 fixed20_12 consumption_time, line_time, chunk_time, read_delay_latency; 281 fixed20_12 sclk, core_bandwidth, max_bandwidth; 282 u32 selected_sclk; 283 284 if (!crtc->base.enabled) { 285 /* FIXME: wouldn't it better to set priority mark to maximum */ 286 wm->lb_request_fifo_depth = 4; 287 return; 288 } 289 290 if (((rdev->family == CHIP_RS780) || (rdev->family == CHIP_RS880)) && 291 (rdev->pm.pm_method == PM_METHOD_DPM) && rdev->pm.dpm_enabled) 292 selected_sclk = radeon_dpm_get_sclk(rdev, low); 293 else 294 selected_sclk = rdev->pm.current_sclk; 295 296 /* sclk in Mhz */ 297 a.full = dfixed_const(100); 298 sclk.full = dfixed_const(selected_sclk); 299 sclk.full = dfixed_div(sclk, a); 300 301 /* core_bandwidth = sclk(Mhz) * 16 */ 302 a.full = dfixed_const(16); 303 core_bandwidth.full = dfixed_div(rdev->pm.sclk, a); 304 305 if (crtc->vsc.full > dfixed_const(2)) 306 wm->num_line_pair.full = dfixed_const(2); 307 else 308 wm->num_line_pair.full = dfixed_const(1); 309 310 b.full = dfixed_const(mode->crtc_hdisplay); 311 c.full = dfixed_const(256); 312 a.full = dfixed_div(b, c); 313 request_fifo_depth.full = dfixed_mul(a, wm->num_line_pair); 314 request_fifo_depth.full = dfixed_ceil(request_fifo_depth); 315 if (a.full < dfixed_const(4)) { 316 wm->lb_request_fifo_depth = 4; 317 } else { 318 wm->lb_request_fifo_depth = dfixed_trunc(request_fifo_depth); 319 } 320 321 /* Determine consumption rate 322 * pclk = pixel clock period(ns) = 1000 / (mode.clock / 1000) 323 * vtaps = number of vertical taps, 324 * vsc = vertical scaling ratio, defined as source/destination 325 * hsc = horizontal scaling ration, defined as source/destination 326 */ 327 a.full = dfixed_const(mode->clock); 328 b.full = dfixed_const(1000); 329 a.full = dfixed_div(a, b); 330 pclk.full = dfixed_div(b, a); 331 if (crtc->rmx_type != RMX_OFF) { 332 b.full = dfixed_const(2); 333 if (crtc->vsc.full > b.full) 334 b.full = crtc->vsc.full; 335 b.full = dfixed_mul(b, crtc->hsc); 336 c.full = dfixed_const(2); 337 b.full = dfixed_div(b, c); 338 consumption_time.full = dfixed_div(pclk, b); 339 } else { 340 consumption_time.full = pclk.full; 341 } 342 a.full = dfixed_const(1); 343 wm->consumption_rate.full = dfixed_div(a, consumption_time); 344 345 346 /* Determine line time 347 * LineTime = total time for one line of displayhtotal 348 * LineTime = total number of horizontal pixels 349 * pclk = pixel clock period(ns) 350 */ 351 a.full = dfixed_const(crtc->base.mode.crtc_htotal); 352 line_time.full = dfixed_mul(a, pclk); 353 354 /* Determine active time 355 * ActiveTime = time of active region of display within one line, 356 * hactive = total number of horizontal active pixels 357 * htotal = total number of horizontal pixels 358 */ 359 a.full = dfixed_const(crtc->base.mode.crtc_htotal); 360 b.full = dfixed_const(crtc->base.mode.crtc_hdisplay); 361 wm->active_time.full = dfixed_mul(line_time, b); 362 wm->active_time.full = dfixed_div(wm->active_time, a); 363 364 /* Maximun bandwidth is the minimun bandwidth of all component */ 365 max_bandwidth = core_bandwidth; 366 if (rdev->mc.igp_sideport_enabled) { 367 if (max_bandwidth.full > rdev->pm.sideport_bandwidth.full && 368 rdev->pm.sideport_bandwidth.full) 369 max_bandwidth = rdev->pm.sideport_bandwidth; 370 read_delay_latency.full = dfixed_const(370 * 800); 371 a.full = dfixed_const(1000); 372 b.full = dfixed_div(rdev->pm.igp_sideport_mclk, a); 373 read_delay_latency.full = dfixed_div(read_delay_latency, b); 374 read_delay_latency.full = dfixed_mul(read_delay_latency, a); 375 } else { 376 if (max_bandwidth.full > rdev->pm.k8_bandwidth.full && 377 rdev->pm.k8_bandwidth.full) 378 max_bandwidth = rdev->pm.k8_bandwidth; 379 if (max_bandwidth.full > rdev->pm.ht_bandwidth.full && 380 rdev->pm.ht_bandwidth.full) 381 max_bandwidth = rdev->pm.ht_bandwidth; 382 read_delay_latency.full = dfixed_const(5000); 383 } 384 385 /* sclk = system clocks(ns) = 1000 / max_bandwidth / 16 */ 386 a.full = dfixed_const(16); 387 sclk.full = dfixed_mul(max_bandwidth, a); 388 a.full = dfixed_const(1000); 389 sclk.full = dfixed_div(a, sclk); 390 /* Determine chunk time 391 * ChunkTime = the time it takes the DCP to send one chunk of data 392 * to the LB which consists of pipeline delay and inter chunk gap 393 * sclk = system clock(ns) 394 */ 395 a.full = dfixed_const(256 * 13); 396 chunk_time.full = dfixed_mul(sclk, a); 397 a.full = dfixed_const(10); 398 chunk_time.full = dfixed_div(chunk_time, a); 399 400 /* Determine the worst case latency 401 * NumLinePair = Number of line pairs to request(1=2 lines, 2=4 lines) 402 * WorstCaseLatency = worst case time from urgent to when the MC starts 403 * to return data 404 * READ_DELAY_IDLE_MAX = constant of 1us 405 * ChunkTime = time it takes the DCP to send one chunk of data to the LB 406 * which consists of pipeline delay and inter chunk gap 407 */ 408 if (dfixed_trunc(wm->num_line_pair) > 1) { 409 a.full = dfixed_const(3); 410 wm->worst_case_latency.full = dfixed_mul(a, chunk_time); 411 wm->worst_case_latency.full += read_delay_latency.full; 412 } else { 413 a.full = dfixed_const(2); 414 wm->worst_case_latency.full = dfixed_mul(a, chunk_time); 415 wm->worst_case_latency.full += read_delay_latency.full; 416 } 417 418 /* Determine the tolerable latency 419 * TolerableLatency = Any given request has only 1 line time 420 * for the data to be returned 421 * LBRequestFifoDepth = Number of chunk requests the LB can 422 * put into the request FIFO for a display 423 * LineTime = total time for one line of display 424 * ChunkTime = the time it takes the DCP to send one chunk 425 * of data to the LB which consists of 426 * pipeline delay and inter chunk gap 427 */ 428 if ((2+wm->lb_request_fifo_depth) >= dfixed_trunc(request_fifo_depth)) { 429 tolerable_latency.full = line_time.full; 430 } else { 431 tolerable_latency.full = dfixed_const(wm->lb_request_fifo_depth - 2); 432 tolerable_latency.full = request_fifo_depth.full - tolerable_latency.full; 433 tolerable_latency.full = dfixed_mul(tolerable_latency, chunk_time); 434 tolerable_latency.full = line_time.full - tolerable_latency.full; 435 } 436 /* We assume worst case 32bits (4 bytes) */ 437 wm->dbpp.full = dfixed_const(4 * 8); 438 439 /* Determine the maximum priority mark 440 * width = viewport width in pixels 441 */ 442 a.full = dfixed_const(16); 443 wm->priority_mark_max.full = dfixed_const(crtc->base.mode.crtc_hdisplay); 444 wm->priority_mark_max.full = dfixed_div(wm->priority_mark_max, a); 445 wm->priority_mark_max.full = dfixed_ceil(wm->priority_mark_max); 446 447 /* Determine estimated width */ 448 estimated_width.full = tolerable_latency.full - wm->worst_case_latency.full; 449 estimated_width.full = dfixed_div(estimated_width, consumption_time); 450 if (dfixed_trunc(estimated_width) > crtc->base.mode.crtc_hdisplay) { 451 wm->priority_mark.full = dfixed_const(10); 452 } else { 453 a.full = dfixed_const(16); 454 wm->priority_mark.full = dfixed_div(estimated_width, a); 455 wm->priority_mark.full = dfixed_ceil(wm->priority_mark); 456 wm->priority_mark.full = wm->priority_mark_max.full - wm->priority_mark.full; 457 } 458 } 459 460 static void rs690_compute_mode_priority(struct radeon_device *rdev, 461 struct rs690_watermark *wm0, 462 struct rs690_watermark *wm1, 463 struct drm_display_mode *mode0, 464 struct drm_display_mode *mode1, 465 u32 *d1mode_priority_a_cnt, 466 u32 *d2mode_priority_a_cnt) 467 { 468 fixed20_12 priority_mark02, priority_mark12, fill_rate; 469 fixed20_12 a, b; 470 471 *d1mode_priority_a_cnt = S_006548_D1MODE_PRIORITY_A_OFF(1); 472 *d2mode_priority_a_cnt = S_006548_D1MODE_PRIORITY_A_OFF(1); 473 474 if (mode0 && mode1) { 475 if (dfixed_trunc(wm0->dbpp) > 64) 476 a.full = dfixed_mul(wm0->dbpp, wm0->num_line_pair); 477 else 478 a.full = wm0->num_line_pair.full; 479 if (dfixed_trunc(wm1->dbpp) > 64) 480 b.full = dfixed_mul(wm1->dbpp, wm1->num_line_pair); 481 else 482 b.full = wm1->num_line_pair.full; 483 a.full += b.full; 484 fill_rate.full = dfixed_div(wm0->sclk, a); 485 if (wm0->consumption_rate.full > fill_rate.full) { 486 b.full = wm0->consumption_rate.full - fill_rate.full; 487 b.full = dfixed_mul(b, wm0->active_time); 488 a.full = dfixed_mul(wm0->worst_case_latency, 489 wm0->consumption_rate); 490 a.full = a.full + b.full; 491 b.full = dfixed_const(16 * 1000); 492 priority_mark02.full = dfixed_div(a, b); 493 } else { 494 a.full = dfixed_mul(wm0->worst_case_latency, 495 wm0->consumption_rate); 496 b.full = dfixed_const(16 * 1000); 497 priority_mark02.full = dfixed_div(a, b); 498 } 499 if (wm1->consumption_rate.full > fill_rate.full) { 500 b.full = wm1->consumption_rate.full - fill_rate.full; 501 b.full = dfixed_mul(b, wm1->active_time); 502 a.full = dfixed_mul(wm1->worst_case_latency, 503 wm1->consumption_rate); 504 a.full = a.full + b.full; 505 b.full = dfixed_const(16 * 1000); 506 priority_mark12.full = dfixed_div(a, b); 507 } else { 508 a.full = dfixed_mul(wm1->worst_case_latency, 509 wm1->consumption_rate); 510 b.full = dfixed_const(16 * 1000); 511 priority_mark12.full = dfixed_div(a, b); 512 } 513 if (wm0->priority_mark.full > priority_mark02.full) 514 priority_mark02.full = wm0->priority_mark.full; 515 if (wm0->priority_mark_max.full > priority_mark02.full) 516 priority_mark02.full = wm0->priority_mark_max.full; 517 if (wm1->priority_mark.full > priority_mark12.full) 518 priority_mark12.full = wm1->priority_mark.full; 519 if (wm1->priority_mark_max.full > priority_mark12.full) 520 priority_mark12.full = wm1->priority_mark_max.full; 521 *d1mode_priority_a_cnt = dfixed_trunc(priority_mark02); 522 *d2mode_priority_a_cnt = dfixed_trunc(priority_mark12); 523 if (rdev->disp_priority == 2) { 524 *d1mode_priority_a_cnt |= S_006548_D1MODE_PRIORITY_A_ALWAYS_ON(1); 525 *d2mode_priority_a_cnt |= S_006D48_D2MODE_PRIORITY_A_ALWAYS_ON(1); 526 } 527 } else if (mode0) { 528 if (dfixed_trunc(wm0->dbpp) > 64) 529 a.full = dfixed_mul(wm0->dbpp, wm0->num_line_pair); 530 else 531 a.full = wm0->num_line_pair.full; 532 fill_rate.full = dfixed_div(wm0->sclk, a); 533 if (wm0->consumption_rate.full > fill_rate.full) { 534 b.full = wm0->consumption_rate.full - fill_rate.full; 535 b.full = dfixed_mul(b, wm0->active_time); 536 a.full = dfixed_mul(wm0->worst_case_latency, 537 wm0->consumption_rate); 538 a.full = a.full + b.full; 539 b.full = dfixed_const(16 * 1000); 540 priority_mark02.full = dfixed_div(a, b); 541 } else { 542 a.full = dfixed_mul(wm0->worst_case_latency, 543 wm0->consumption_rate); 544 b.full = dfixed_const(16 * 1000); 545 priority_mark02.full = dfixed_div(a, b); 546 } 547 if (wm0->priority_mark.full > priority_mark02.full) 548 priority_mark02.full = wm0->priority_mark.full; 549 if (wm0->priority_mark_max.full > priority_mark02.full) 550 priority_mark02.full = wm0->priority_mark_max.full; 551 *d1mode_priority_a_cnt = dfixed_trunc(priority_mark02); 552 if (rdev->disp_priority == 2) 553 *d1mode_priority_a_cnt |= S_006548_D1MODE_PRIORITY_A_ALWAYS_ON(1); 554 } else if (mode1) { 555 if (dfixed_trunc(wm1->dbpp) > 64) 556 a.full = dfixed_mul(wm1->dbpp, wm1->num_line_pair); 557 else 558 a.full = wm1->num_line_pair.full; 559 fill_rate.full = dfixed_div(wm1->sclk, a); 560 if (wm1->consumption_rate.full > fill_rate.full) { 561 b.full = wm1->consumption_rate.full - fill_rate.full; 562 b.full = dfixed_mul(b, wm1->active_time); 563 a.full = dfixed_mul(wm1->worst_case_latency, 564 wm1->consumption_rate); 565 a.full = a.full + b.full; 566 b.full = dfixed_const(16 * 1000); 567 priority_mark12.full = dfixed_div(a, b); 568 } else { 569 a.full = dfixed_mul(wm1->worst_case_latency, 570 wm1->consumption_rate); 571 b.full = dfixed_const(16 * 1000); 572 priority_mark12.full = dfixed_div(a, b); 573 } 574 if (wm1->priority_mark.full > priority_mark12.full) 575 priority_mark12.full = wm1->priority_mark.full; 576 if (wm1->priority_mark_max.full > priority_mark12.full) 577 priority_mark12.full = wm1->priority_mark_max.full; 578 *d2mode_priority_a_cnt = dfixed_trunc(priority_mark12); 579 if (rdev->disp_priority == 2) 580 *d2mode_priority_a_cnt |= S_006D48_D2MODE_PRIORITY_A_ALWAYS_ON(1); 581 } 582 } 583 584 void rs690_bandwidth_update(struct radeon_device *rdev) 585 { 586 struct drm_display_mode *mode0 = NULL; 587 struct drm_display_mode *mode1 = NULL; 588 struct rs690_watermark wm0_high, wm0_low; 589 struct rs690_watermark wm1_high, wm1_low; 590 u32 tmp; 591 u32 d1mode_priority_a_cnt, d1mode_priority_b_cnt; 592 u32 d2mode_priority_a_cnt, d2mode_priority_b_cnt; 593 594 if (!rdev->mode_info.mode_config_initialized) 595 return; 596 597 radeon_update_display_priority(rdev); 598 599 if (rdev->mode_info.crtcs[0]->base.enabled) 600 mode0 = &rdev->mode_info.crtcs[0]->base.mode; 601 if (rdev->mode_info.crtcs[1]->base.enabled) 602 mode1 = &rdev->mode_info.crtcs[1]->base.mode; 603 /* 604 * Set display0/1 priority up in the memory controller for 605 * modes if the user specifies HIGH for displaypriority 606 * option. 607 */ 608 if ((rdev->disp_priority == 2) && 609 ((rdev->family == CHIP_RS690) || (rdev->family == CHIP_RS740))) { 610 tmp = RREG32_MC(R_000104_MC_INIT_MISC_LAT_TIMER); 611 tmp &= C_000104_MC_DISP0R_INIT_LAT; 612 tmp &= C_000104_MC_DISP1R_INIT_LAT; 613 if (mode0) 614 tmp |= S_000104_MC_DISP0R_INIT_LAT(1); 615 if (mode1) 616 tmp |= S_000104_MC_DISP1R_INIT_LAT(1); 617 WREG32_MC(R_000104_MC_INIT_MISC_LAT_TIMER, tmp); 618 } 619 rs690_line_buffer_adjust(rdev, mode0, mode1); 620 621 if ((rdev->family == CHIP_RS690) || (rdev->family == CHIP_RS740)) 622 WREG32(R_006C9C_DCP_CONTROL, 0); 623 if ((rdev->family == CHIP_RS780) || (rdev->family == CHIP_RS880)) 624 WREG32(R_006C9C_DCP_CONTROL, 2); 625 626 rs690_crtc_bandwidth_compute(rdev, rdev->mode_info.crtcs[0], &wm0_high, false); 627 rs690_crtc_bandwidth_compute(rdev, rdev->mode_info.crtcs[1], &wm1_high, false); 628 629 rs690_crtc_bandwidth_compute(rdev, rdev->mode_info.crtcs[0], &wm0_low, true); 630 rs690_crtc_bandwidth_compute(rdev, rdev->mode_info.crtcs[1], &wm1_low, true); 631 632 tmp = (wm0_high.lb_request_fifo_depth - 1); 633 tmp |= (wm1_high.lb_request_fifo_depth - 1) << 16; 634 WREG32(R_006D58_LB_MAX_REQ_OUTSTANDING, tmp); 635 636 rs690_compute_mode_priority(rdev, 637 &wm0_high, &wm1_high, 638 mode0, mode1, 639 &d1mode_priority_a_cnt, &d2mode_priority_a_cnt); 640 rs690_compute_mode_priority(rdev, 641 &wm0_low, &wm1_low, 642 mode0, mode1, 643 &d1mode_priority_b_cnt, &d2mode_priority_b_cnt); 644 645 WREG32(R_006548_D1MODE_PRIORITY_A_CNT, d1mode_priority_a_cnt); 646 WREG32(R_00654C_D1MODE_PRIORITY_B_CNT, d1mode_priority_b_cnt); 647 WREG32(R_006D48_D2MODE_PRIORITY_A_CNT, d2mode_priority_a_cnt); 648 WREG32(R_006D4C_D2MODE_PRIORITY_B_CNT, d2mode_priority_b_cnt); 649 } 650 651 uint32_t rs690_mc_rreg(struct radeon_device *rdev, uint32_t reg) 652 { 653 unsigned long flags; 654 uint32_t r; 655 656 spin_lock_irqsave(&rdev->mc_idx_lock, flags); 657 WREG32(R_000078_MC_INDEX, S_000078_MC_IND_ADDR(reg)); 658 r = RREG32(R_00007C_MC_DATA); 659 WREG32(R_000078_MC_INDEX, ~C_000078_MC_IND_ADDR); 660 spin_unlock_irqrestore(&rdev->mc_idx_lock, flags); 661 return r; 662 } 663 664 void rs690_mc_wreg(struct radeon_device *rdev, uint32_t reg, uint32_t v) 665 { 666 unsigned long flags; 667 668 spin_lock_irqsave(&rdev->mc_idx_lock, flags); 669 WREG32(R_000078_MC_INDEX, S_000078_MC_IND_ADDR(reg) | 670 S_000078_MC_IND_WR_EN(1)); 671 WREG32(R_00007C_MC_DATA, v); 672 WREG32(R_000078_MC_INDEX, 0x7F); 673 spin_unlock_irqrestore(&rdev->mc_idx_lock, flags); 674 } 675 676 static void rs690_mc_program(struct radeon_device *rdev) 677 { 678 struct rv515_mc_save save; 679 680 /* Stops all mc clients */ 681 rv515_mc_stop(rdev, &save); 682 683 /* Wait for mc idle */ 684 if (rs690_mc_wait_for_idle(rdev)) 685 dev_warn(rdev->dev, "Wait MC idle timeout before updating MC.\n"); 686 /* Program MC, should be a 32bits limited address space */ 687 WREG32_MC(R_000100_MCCFG_FB_LOCATION, 688 S_000100_MC_FB_START(rdev->mc.vram_start >> 16) | 689 S_000100_MC_FB_TOP(rdev->mc.vram_end >> 16)); 690 WREG32(R_000134_HDP_FB_LOCATION, 691 S_000134_HDP_FB_START(rdev->mc.vram_start >> 16)); 692 693 rv515_mc_resume(rdev, &save); 694 } 695 696 static int rs690_startup(struct radeon_device *rdev) 697 { 698 int r; 699 700 rs690_mc_program(rdev); 701 /* Resume clock */ 702 rv515_clock_startup(rdev); 703 /* Initialize GPU configuration (# pipes, ...) */ 704 rs690_gpu_init(rdev); 705 /* Initialize GART (initialize after TTM so we can allocate 706 * memory through TTM but finalize after TTM) */ 707 r = rs400_gart_enable(rdev); 708 if (r) 709 return r; 710 711 /* allocate wb buffer */ 712 r = radeon_wb_init(rdev); 713 if (r) 714 return r; 715 716 r = radeon_fence_driver_start_ring(rdev, RADEON_RING_TYPE_GFX_INDEX); 717 if (r) { 718 dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r); 719 return r; 720 } 721 722 /* Enable IRQ */ 723 if (!rdev->irq.installed) { 724 r = radeon_irq_kms_init(rdev); 725 if (r) 726 return r; 727 } 728 729 rs600_irq_set(rdev); 730 rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL); 731 /* 1M ring buffer */ 732 r = r100_cp_init(rdev, 1024 * 1024); 733 if (r) { 734 dev_err(rdev->dev, "failed initializing CP (%d).\n", r); 735 return r; 736 } 737 738 r = radeon_ib_pool_init(rdev); 739 if (r) { 740 dev_err(rdev->dev, "IB initialization failed (%d).\n", r); 741 return r; 742 } 743 744 r = radeon_audio_init(rdev); 745 if (r) { 746 dev_err(rdev->dev, "failed initializing audio\n"); 747 return r; 748 } 749 750 return 0; 751 } 752 753 int rs690_resume(struct radeon_device *rdev) 754 { 755 int r; 756 757 /* Make sur GART are not working */ 758 rs400_gart_disable(rdev); 759 /* Resume clock before doing reset */ 760 rv515_clock_startup(rdev); 761 /* Reset gpu before posting otherwise ATOM will enter infinite loop */ 762 if (radeon_asic_reset(rdev)) { 763 dev_warn(rdev->dev, "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n", 764 RREG32(R_000E40_RBBM_STATUS), 765 RREG32(R_0007C0_CP_STAT)); 766 } 767 /* post */ 768 atom_asic_init(rdev->mode_info.atom_context); 769 /* Resume clock after posting */ 770 rv515_clock_startup(rdev); 771 /* Initialize surface registers */ 772 radeon_surface_init(rdev); 773 774 rdev->accel_working = true; 775 r = rs690_startup(rdev); 776 if (r) { 777 rdev->accel_working = false; 778 } 779 return r; 780 } 781 782 int rs690_suspend(struct radeon_device *rdev) 783 { 784 radeon_pm_suspend(rdev); 785 radeon_audio_fini(rdev); 786 r100_cp_disable(rdev); 787 radeon_wb_disable(rdev); 788 rs600_irq_disable(rdev); 789 rs400_gart_disable(rdev); 790 return 0; 791 } 792 793 void rs690_fini(struct radeon_device *rdev) 794 { 795 radeon_pm_fini(rdev); 796 radeon_audio_fini(rdev); 797 r100_cp_fini(rdev); 798 radeon_wb_fini(rdev); 799 radeon_ib_pool_fini(rdev); 800 radeon_gem_fini(rdev); 801 rs400_gart_fini(rdev); 802 radeon_irq_kms_fini(rdev); 803 radeon_fence_driver_fini(rdev); 804 radeon_bo_fini(rdev); 805 radeon_atombios_fini(rdev); 806 kfree(rdev->bios); 807 rdev->bios = NULL; 808 } 809 810 int rs690_init(struct radeon_device *rdev) 811 { 812 int r; 813 814 /* Disable VGA */ 815 rv515_vga_render_disable(rdev); 816 /* Initialize scratch registers */ 817 radeon_scratch_init(rdev); 818 /* Initialize surface registers */ 819 radeon_surface_init(rdev); 820 /* restore some register to sane defaults */ 821 r100_restore_sanity(rdev); 822 /* TODO: disable VGA need to use VGA request */ 823 /* BIOS*/ 824 if (!radeon_get_bios(rdev)) { 825 if (ASIC_IS_AVIVO(rdev)) 826 return -EINVAL; 827 } 828 if (rdev->is_atom_bios) { 829 r = radeon_atombios_init(rdev); 830 if (r) 831 return r; 832 } else { 833 dev_err(rdev->dev, "Expecting atombios for RV515 GPU\n"); 834 return -EINVAL; 835 } 836 /* Reset gpu before posting otherwise ATOM will enter infinite loop */ 837 if (radeon_asic_reset(rdev)) { 838 dev_warn(rdev->dev, 839 "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n", 840 RREG32(R_000E40_RBBM_STATUS), 841 RREG32(R_0007C0_CP_STAT)); 842 } 843 /* check if cards are posted or not */ 844 if (radeon_boot_test_post_card(rdev) == false) 845 return -EINVAL; 846 847 /* Initialize clocks */ 848 radeon_get_clock_info(rdev->ddev); 849 /* initialize memory controller */ 850 rs690_mc_init(rdev); 851 rv515_debugfs(rdev); 852 /* Fence driver */ 853 radeon_fence_driver_init(rdev); 854 /* Memory manager */ 855 r = radeon_bo_init(rdev); 856 if (r) 857 return r; 858 r = rs400_gart_init(rdev); 859 if (r) 860 return r; 861 rs600_set_safe_registers(rdev); 862 863 /* Initialize power management */ 864 radeon_pm_init(rdev); 865 866 rdev->accel_working = true; 867 r = rs690_startup(rdev); 868 if (r) { 869 /* Somethings want wront with the accel init stop accel */ 870 dev_err(rdev->dev, "Disabling GPU acceleration\n"); 871 r100_cp_fini(rdev); 872 radeon_wb_fini(rdev); 873 radeon_ib_pool_fini(rdev); 874 rs400_gart_fini(rdev); 875 radeon_irq_kms_fini(rdev); 876 rdev->accel_working = false; 877 } 878 return 0; 879 } 880