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/debugfs.h> 30 #include <linux/pci.h> 31 #include <linux/seq_file.h> 32 #include <linux/slab.h> 33 34 #include <drm/drm_device.h> 35 #include <drm/drm_file.h> 36 37 #include "atom.h" 38 #include "r100d.h" 39 #include "r420_reg_safe.h" 40 #include "r420d.h" 41 #include "radeon.h" 42 #include "radeon_asic.h" 43 #include "radeon_reg.h" 44 45 void r420_pm_init_profile(struct radeon_device *rdev) 46 { 47 /* default */ 48 rdev->pm.profiles[PM_PROFILE_DEFAULT_IDX].dpms_off_ps_idx = rdev->pm.default_power_state_index; 49 rdev->pm.profiles[PM_PROFILE_DEFAULT_IDX].dpms_on_ps_idx = rdev->pm.default_power_state_index; 50 rdev->pm.profiles[PM_PROFILE_DEFAULT_IDX].dpms_off_cm_idx = 0; 51 rdev->pm.profiles[PM_PROFILE_DEFAULT_IDX].dpms_on_cm_idx = 0; 52 /* low sh */ 53 rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_off_ps_idx = 0; 54 rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_on_ps_idx = 0; 55 rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_off_cm_idx = 0; 56 rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_on_cm_idx = 0; 57 /* mid sh */ 58 rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_off_ps_idx = 0; 59 rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_on_ps_idx = 1; 60 rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_off_cm_idx = 0; 61 rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_on_cm_idx = 0; 62 /* high sh */ 63 rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_off_ps_idx = 0; 64 rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_on_ps_idx = rdev->pm.default_power_state_index; 65 rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_off_cm_idx = 0; 66 rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_on_cm_idx = 0; 67 /* low mh */ 68 rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_off_ps_idx = 0; 69 rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_on_ps_idx = rdev->pm.default_power_state_index; 70 rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_off_cm_idx = 0; 71 rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_on_cm_idx = 0; 72 /* mid mh */ 73 rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_off_ps_idx = 0; 74 rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_on_ps_idx = rdev->pm.default_power_state_index; 75 rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_off_cm_idx = 0; 76 rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_on_cm_idx = 0; 77 /* high mh */ 78 rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_off_ps_idx = 0; 79 rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_on_ps_idx = rdev->pm.default_power_state_index; 80 rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_off_cm_idx = 0; 81 rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_on_cm_idx = 0; 82 } 83 84 static void r420_set_reg_safe(struct radeon_device *rdev) 85 { 86 rdev->config.r300.reg_safe_bm = r420_reg_safe_bm; 87 rdev->config.r300.reg_safe_bm_size = ARRAY_SIZE(r420_reg_safe_bm); 88 } 89 90 void r420_pipes_init(struct radeon_device *rdev) 91 { 92 unsigned tmp; 93 unsigned gb_pipe_select; 94 unsigned num_pipes; 95 96 /* GA_ENHANCE workaround TCL deadlock issue */ 97 WREG32(R300_GA_ENHANCE, R300_GA_DEADLOCK_CNTL | R300_GA_FASTSYNC_CNTL | 98 (1 << 2) | (1 << 3)); 99 /* add idle wait as per freedesktop.org bug 24041 */ 100 if (r100_gui_wait_for_idle(rdev)) { 101 pr_warn("Failed to wait GUI idle while programming pipes. Bad things might happen.\n"); 102 } 103 /* get max number of pipes */ 104 gb_pipe_select = RREG32(R400_GB_PIPE_SELECT); 105 num_pipes = ((gb_pipe_select >> 12) & 3) + 1; 106 107 /* SE chips have 1 pipe */ 108 if ((rdev->pdev->device == 0x5e4c) || 109 (rdev->pdev->device == 0x5e4f)) 110 num_pipes = 1; 111 112 rdev->num_gb_pipes = num_pipes; 113 tmp = 0; 114 switch (num_pipes) { 115 default: 116 /* force to 1 pipe */ 117 num_pipes = 1; 118 fallthrough; 119 case 1: 120 tmp = (0 << 1); 121 break; 122 case 2: 123 tmp = (3 << 1); 124 break; 125 case 3: 126 tmp = (6 << 1); 127 break; 128 case 4: 129 tmp = (7 << 1); 130 break; 131 } 132 WREG32(R500_SU_REG_DEST, (1 << num_pipes) - 1); 133 /* Sub pixel 1/12 so we can have 4K rendering according to doc */ 134 tmp |= R300_TILE_SIZE_16 | R300_ENABLE_TILING; 135 WREG32(R300_GB_TILE_CONFIG, tmp); 136 if (r100_gui_wait_for_idle(rdev)) { 137 pr_warn("Failed to wait GUI idle while programming pipes. Bad things might happen.\n"); 138 } 139 140 tmp = RREG32(R300_DST_PIPE_CONFIG); 141 WREG32(R300_DST_PIPE_CONFIG, tmp | R300_PIPE_AUTO_CONFIG); 142 143 WREG32(R300_RB2D_DSTCACHE_MODE, 144 RREG32(R300_RB2D_DSTCACHE_MODE) | 145 R300_DC_AUTOFLUSH_ENABLE | 146 R300_DC_DC_DISABLE_IGNORE_PE); 147 148 if (r100_gui_wait_for_idle(rdev)) { 149 pr_warn("Failed to wait GUI idle while programming pipes. Bad things might happen.\n"); 150 } 151 152 if (rdev->family == CHIP_RV530) { 153 tmp = RREG32(RV530_GB_PIPE_SELECT2); 154 if ((tmp & 3) == 3) 155 rdev->num_z_pipes = 2; 156 else 157 rdev->num_z_pipes = 1; 158 } else 159 rdev->num_z_pipes = 1; 160 161 DRM_INFO("radeon: %d quad pipes, %d z pipes initialized.\n", 162 rdev->num_gb_pipes, rdev->num_z_pipes); 163 } 164 165 u32 r420_mc_rreg(struct radeon_device *rdev, u32 reg) 166 { 167 unsigned long flags; 168 u32 r; 169 170 spin_lock_irqsave(&rdev->mc_idx_lock, flags); 171 WREG32(R_0001F8_MC_IND_INDEX, S_0001F8_MC_IND_ADDR(reg)); 172 r = RREG32(R_0001FC_MC_IND_DATA); 173 spin_unlock_irqrestore(&rdev->mc_idx_lock, flags); 174 return r; 175 } 176 177 void r420_mc_wreg(struct radeon_device *rdev, u32 reg, u32 v) 178 { 179 unsigned long flags; 180 181 spin_lock_irqsave(&rdev->mc_idx_lock, flags); 182 WREG32(R_0001F8_MC_IND_INDEX, S_0001F8_MC_IND_ADDR(reg) | 183 S_0001F8_MC_IND_WR_EN(1)); 184 WREG32(R_0001FC_MC_IND_DATA, v); 185 spin_unlock_irqrestore(&rdev->mc_idx_lock, flags); 186 } 187 188 static void r420_debugfs(struct radeon_device *rdev) 189 { 190 r100_debugfs_rbbm_init(rdev); 191 r420_debugfs_pipes_info_init(rdev); 192 } 193 194 static void r420_clock_resume(struct radeon_device *rdev) 195 { 196 u32 sclk_cntl; 197 198 if (radeon_dynclks != -1 && radeon_dynclks) 199 radeon_atom_set_clock_gating(rdev, 1); 200 sclk_cntl = RREG32_PLL(R_00000D_SCLK_CNTL); 201 sclk_cntl |= S_00000D_FORCE_CP(1) | S_00000D_FORCE_VIP(1); 202 if (rdev->family == CHIP_R420) 203 sclk_cntl |= S_00000D_FORCE_PX(1) | S_00000D_FORCE_TX(1); 204 WREG32_PLL(R_00000D_SCLK_CNTL, sclk_cntl); 205 } 206 207 static void r420_cp_errata_init(struct radeon_device *rdev) 208 { 209 int r; 210 struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX]; 211 212 /* RV410 and R420 can lock up if CP DMA to host memory happens 213 * while the 2D engine is busy. 214 * 215 * The proper workaround is to queue a RESYNC at the beginning 216 * of the CP init, apparently. 217 */ 218 radeon_scratch_get(rdev, &rdev->config.r300.resync_scratch); 219 r = radeon_ring_lock(rdev, ring, 8); 220 WARN_ON(r); 221 radeon_ring_write(ring, PACKET0(R300_CP_RESYNC_ADDR, 1)); 222 radeon_ring_write(ring, rdev->config.r300.resync_scratch); 223 radeon_ring_write(ring, 0xDEADBEEF); 224 radeon_ring_unlock_commit(rdev, ring, false); 225 } 226 227 static void r420_cp_errata_fini(struct radeon_device *rdev) 228 { 229 int r; 230 struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX]; 231 232 /* Catch the RESYNC we dispatched all the way back, 233 * at the very beginning of the CP init. 234 */ 235 r = radeon_ring_lock(rdev, ring, 8); 236 WARN_ON(r); 237 radeon_ring_write(ring, PACKET0(R300_RB3D_DSTCACHE_CTLSTAT, 0)); 238 radeon_ring_write(ring, R300_RB3D_DC_FINISH); 239 radeon_ring_unlock_commit(rdev, ring, false); 240 radeon_scratch_free(rdev, rdev->config.r300.resync_scratch); 241 } 242 243 static int r420_startup(struct radeon_device *rdev) 244 { 245 int r; 246 247 /* set common regs */ 248 r100_set_common_regs(rdev); 249 /* program mc */ 250 r300_mc_program(rdev); 251 /* Resume clock */ 252 r420_clock_resume(rdev); 253 /* Initialize GART (initialize after TTM so we can allocate 254 * memory through TTM but finalize after TTM) */ 255 if (rdev->flags & RADEON_IS_PCIE) { 256 r = rv370_pcie_gart_enable(rdev); 257 if (r) 258 return r; 259 } 260 if (rdev->flags & RADEON_IS_PCI) { 261 r = r100_pci_gart_enable(rdev); 262 if (r) 263 return r; 264 } 265 r420_pipes_init(rdev); 266 267 /* allocate wb buffer */ 268 r = radeon_wb_init(rdev); 269 if (r) 270 return r; 271 272 r = radeon_fence_driver_start_ring(rdev, RADEON_RING_TYPE_GFX_INDEX); 273 if (r) { 274 dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r); 275 return r; 276 } 277 278 /* Enable IRQ */ 279 if (!rdev->irq.installed) { 280 r = radeon_irq_kms_init(rdev); 281 if (r) 282 return r; 283 } 284 285 r100_irq_set(rdev); 286 rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL); 287 /* 1M ring buffer */ 288 r = r100_cp_init(rdev, 1024 * 1024); 289 if (r) { 290 dev_err(rdev->dev, "failed initializing CP (%d).\n", r); 291 return r; 292 } 293 r420_cp_errata_init(rdev); 294 295 r = radeon_ib_pool_init(rdev); 296 if (r) { 297 dev_err(rdev->dev, "IB initialization failed (%d).\n", r); 298 return r; 299 } 300 301 return 0; 302 } 303 304 int r420_resume(struct radeon_device *rdev) 305 { 306 int r; 307 308 /* Make sur GART are not working */ 309 if (rdev->flags & RADEON_IS_PCIE) 310 rv370_pcie_gart_disable(rdev); 311 if (rdev->flags & RADEON_IS_PCI) 312 r100_pci_gart_disable(rdev); 313 /* Resume clock before doing reset */ 314 r420_clock_resume(rdev); 315 /* Reset gpu before posting otherwise ATOM will enter infinite loop */ 316 if (radeon_asic_reset(rdev)) { 317 dev_warn(rdev->dev, "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n", 318 RREG32(R_000E40_RBBM_STATUS), 319 RREG32(R_0007C0_CP_STAT)); 320 } 321 /* check if cards are posted or not */ 322 if (rdev->is_atom_bios) { 323 atom_asic_init(rdev->mode_info.atom_context); 324 } else { 325 radeon_combios_asic_init(rdev_to_drm(rdev)); 326 } 327 /* Resume clock after posting */ 328 r420_clock_resume(rdev); 329 /* Initialize surface registers */ 330 radeon_surface_init(rdev); 331 332 rdev->accel_working = true; 333 r = r420_startup(rdev); 334 if (r) { 335 rdev->accel_working = false; 336 } 337 return r; 338 } 339 340 int r420_suspend(struct radeon_device *rdev) 341 { 342 radeon_pm_suspend(rdev); 343 r420_cp_errata_fini(rdev); 344 r100_cp_disable(rdev); 345 radeon_wb_disable(rdev); 346 r100_irq_disable(rdev); 347 if (rdev->flags & RADEON_IS_PCIE) 348 rv370_pcie_gart_disable(rdev); 349 if (rdev->flags & RADEON_IS_PCI) 350 r100_pci_gart_disable(rdev); 351 return 0; 352 } 353 354 void r420_fini(struct radeon_device *rdev) 355 { 356 radeon_pm_fini(rdev); 357 r100_cp_fini(rdev); 358 radeon_wb_fini(rdev); 359 radeon_ib_pool_fini(rdev); 360 radeon_gem_fini(rdev); 361 if (rdev->flags & RADEON_IS_PCIE) 362 rv370_pcie_gart_fini(rdev); 363 if (rdev->flags & RADEON_IS_PCI) 364 r100_pci_gart_fini(rdev); 365 radeon_agp_fini(rdev); 366 radeon_irq_kms_fini(rdev); 367 radeon_fence_driver_fini(rdev); 368 radeon_bo_fini(rdev); 369 if (rdev->is_atom_bios) { 370 radeon_atombios_fini(rdev); 371 } else { 372 radeon_combios_fini(rdev); 373 } 374 kfree(rdev->bios); 375 rdev->bios = NULL; 376 } 377 378 int r420_init(struct radeon_device *rdev) 379 { 380 int r; 381 382 /* Initialize scratch registers */ 383 radeon_scratch_init(rdev); 384 /* Initialize surface registers */ 385 radeon_surface_init(rdev); 386 /* TODO: disable VGA need to use VGA request */ 387 /* restore some register to sane defaults */ 388 r100_restore_sanity(rdev); 389 /* BIOS*/ 390 if (!radeon_get_bios(rdev)) { 391 if (ASIC_IS_AVIVO(rdev)) 392 return -EINVAL; 393 } 394 if (rdev->is_atom_bios) { 395 r = radeon_atombios_init(rdev); 396 if (r) { 397 return r; 398 } 399 } else { 400 r = radeon_combios_init(rdev); 401 if (r) { 402 return r; 403 } 404 } 405 /* Reset gpu before posting otherwise ATOM will enter infinite loop */ 406 if (radeon_asic_reset(rdev)) { 407 dev_warn(rdev->dev, 408 "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n", 409 RREG32(R_000E40_RBBM_STATUS), 410 RREG32(R_0007C0_CP_STAT)); 411 } 412 /* check if cards are posted or not */ 413 if (radeon_boot_test_post_card(rdev) == false) 414 return -EINVAL; 415 416 /* Initialize clocks */ 417 radeon_get_clock_info(rdev_to_drm(rdev)); 418 /* initialize AGP */ 419 if (rdev->flags & RADEON_IS_AGP) { 420 r = radeon_agp_init(rdev); 421 if (r) { 422 radeon_agp_disable(rdev); 423 } 424 } 425 /* initialize memory controller */ 426 r300_mc_init(rdev); 427 r420_debugfs(rdev); 428 /* Fence driver */ 429 radeon_fence_driver_init(rdev); 430 /* Memory manager */ 431 r = radeon_bo_init(rdev); 432 if (r) { 433 return r; 434 } 435 if (rdev->family == CHIP_R420) 436 r100_enable_bm(rdev); 437 438 if (rdev->flags & RADEON_IS_PCIE) { 439 r = rv370_pcie_gart_init(rdev); 440 if (r) 441 return r; 442 } 443 if (rdev->flags & RADEON_IS_PCI) { 444 r = r100_pci_gart_init(rdev); 445 if (r) 446 return r; 447 } 448 r420_set_reg_safe(rdev); 449 450 /* Initialize power management */ 451 radeon_pm_init(rdev); 452 453 rdev->accel_working = true; 454 r = r420_startup(rdev); 455 if (r) { 456 /* Somethings want wront with the accel init stop accel */ 457 dev_err(rdev->dev, "Disabling GPU acceleration\n"); 458 r100_cp_fini(rdev); 459 radeon_wb_fini(rdev); 460 radeon_ib_pool_fini(rdev); 461 radeon_irq_kms_fini(rdev); 462 if (rdev->flags & RADEON_IS_PCIE) 463 rv370_pcie_gart_fini(rdev); 464 if (rdev->flags & RADEON_IS_PCI) 465 r100_pci_gart_fini(rdev); 466 radeon_agp_fini(rdev); 467 rdev->accel_working = false; 468 } 469 return 0; 470 } 471 472 /* 473 * Debugfs info 474 */ 475 #if defined(CONFIG_DEBUG_FS) 476 static int r420_debugfs_pipes_info_show(struct seq_file *m, void *unused) 477 { 478 struct radeon_device *rdev = m->private; 479 uint32_t tmp; 480 481 tmp = RREG32(R400_GB_PIPE_SELECT); 482 seq_printf(m, "GB_PIPE_SELECT 0x%08x\n", tmp); 483 tmp = RREG32(R300_GB_TILE_CONFIG); 484 seq_printf(m, "GB_TILE_CONFIG 0x%08x\n", tmp); 485 tmp = RREG32(R300_DST_PIPE_CONFIG); 486 seq_printf(m, "DST_PIPE_CONFIG 0x%08x\n", tmp); 487 return 0; 488 } 489 490 DEFINE_SHOW_ATTRIBUTE(r420_debugfs_pipes_info); 491 #endif 492 493 void r420_debugfs_pipes_info_init(struct radeon_device *rdev) 494 { 495 #if defined(CONFIG_DEBUG_FS) 496 struct dentry *root = rdev_to_drm(rdev)->primary->debugfs_root; 497 498 debugfs_create_file("r420_pipes_info", 0444, root, rdev, 499 &r420_debugfs_pipes_info_fops); 500 #endif 501 } 502