drivers/gpu/drm/radeon/r420.c

   1 /*
   2  * Copyright 2008 Advanced Micro Devices, Inc.
   3  * Copyright 2008 Red Hat Inc.
   4  * Copyright 2009 Jerome Glisse.
   5  *
   6  * Permission is hereby granted, free of charge, to any person obtaining a
   7  * copy of this software and associated documentation files (the "Software"),
   8  * to deal in the Software without restriction, including without limitation
   9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
  10  * and/or sell copies of the Software, and to permit persons to whom the
  11  * Software is furnished to do so, subject to the following conditions:
  12  *
  13  * The above copyright notice and this permission notice shall be included in
  14  * all copies or substantial portions of the Software.
  15  *
  16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  19  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  22  * OTHER DEALINGS IN THE SOFTWARE.
  23  *
  24  * Authors: Dave Airlie
  25  *          Alex Deucher
  26  *          Jerome Glisse
  27  */
  28 #include <linux/seq_file.h>
  29 #include <linux/slab.h>
  30 #include <drm/drmP.h>
  31 #include "radeon_reg.h"
  32 #include "radeon.h"
  33 #include "radeon_asic.h"
  34 #include "atom.h"
  35 #include "r100d.h"
  36 #include "r420d.h"
  37 #include "r420_reg_safe.h"
  38
  39 void r420_pm_init_profile(struct radeon_device *rdev)
  40 {
  41         /* default */
  42         rdev->pm.profiles[PM_PROFILE_DEFAULT_IDX].dpms_off_ps_idx = rdev->pm.default_power_state_index;
  43         rdev->pm.profiles[PM_PROFILE_DEFAULT_IDX].dpms_on_ps_idx = rdev->pm.default_power_state_index;
  44         rdev->pm.profiles[PM_PROFILE_DEFAULT_IDX].dpms_off_cm_idx = 0;
  45         rdev->pm.profiles[PM_PROFILE_DEFAULT_IDX].dpms_on_cm_idx = 0;
  46         /* low sh */
  47         rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_off_ps_idx = 0;
  48         rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_on_ps_idx = 0;
  49         rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_off_cm_idx = 0;
  50         rdev->pm.profiles[PM_PROFILE_LOW_SH_IDX].dpms_on_cm_idx = 0;
  51         /* mid sh */
  52         rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_off_ps_idx = 0;
  53         rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_on_ps_idx = 1;
  54         rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_off_cm_idx = 0;
  55         rdev->pm.profiles[PM_PROFILE_MID_SH_IDX].dpms_on_cm_idx = 0;
  56         /* high sh */
  57         rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_off_ps_idx = 0;
  58         rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_on_ps_idx = rdev->pm.default_power_state_index;
  59         rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_off_cm_idx = 0;
  60         rdev->pm.profiles[PM_PROFILE_HIGH_SH_IDX].dpms_on_cm_idx = 0;
  61         /* low mh */
  62         rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_off_ps_idx = 0;
  63         rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_on_ps_idx = rdev->pm.default_power_state_index;
  64         rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_off_cm_idx = 0;
  65         rdev->pm.profiles[PM_PROFILE_LOW_MH_IDX].dpms_on_cm_idx = 0;
  66         /* mid mh */
  67         rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_off_ps_idx = 0;
  68         rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_on_ps_idx = rdev->pm.default_power_state_index;
  69         rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_off_cm_idx = 0;
  70         rdev->pm.profiles[PM_PROFILE_MID_MH_IDX].dpms_on_cm_idx = 0;
  71         /* high mh */
  72         rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_off_ps_idx = 0;
  73         rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_on_ps_idx = rdev->pm.default_power_state_index;
  74         rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_off_cm_idx = 0;
  75         rdev->pm.profiles[PM_PROFILE_HIGH_MH_IDX].dpms_on_cm_idx = 0;
  76 }
  77
  78 static void r420_set_reg_safe(struct radeon_device *rdev)
  79 {
  80         rdev->config.r300.reg_safe_bm = r420_reg_safe_bm;
  81         rdev->config.r300.reg_safe_bm_size = ARRAY_SIZE(r420_reg_safe_bm);
  82 }
  83
  84 void r420_pipes_init(struct radeon_device *rdev)
  85 {
  86         unsigned tmp;
  87         unsigned gb_pipe_select;
  88         unsigned num_pipes;
  89
  90         /* GA_ENHANCE workaround TCL deadlock issue */
  91         WREG32(R300_GA_ENHANCE, R300_GA_DEADLOCK_CNTL | R300_GA_FASTSYNC_CNTL |
  92                (1 << 2) | (1 << 3));
  93         /* add idle wait as per freedesktop.org bug 24041 */
  94         if (r100_gui_wait_for_idle(rdev)) {
  95                 printk(KERN_WARNING "Failed to wait GUI idle while "
  96                        "programming pipes. Bad things might happen.\n");
  97         }
  98         /* get max number of pipes */
  99         gb_pipe_select = RREG32(R400_GB_PIPE_SELECT);
 100         num_pipes = ((gb_pipe_select >> 12) & 3) + 1;
 101
 102         /* SE chips have 1 pipe */
 103         if ((rdev->pdev->device == 0x5e4c) ||
 104             (rdev->pdev->device == 0x5e4f))
 105                 num_pipes = 1;
 106
 107         rdev->num_gb_pipes = num_pipes;
 108         tmp = 0;
 109         switch (num_pipes) {
 110         default:
 111                 /* force to 1 pipe */
 112                 num_pipes = 1;
 113         case 1:
 114                 tmp = (0 << 1);
 115                 break;
 116         case 2:
 117                 tmp = (3 << 1);
 118                 break;
 119         case 3:
 120                 tmp = (6 << 1);
 121                 break;
 122         case 4:
 123                 tmp = (7 << 1);
 124                 break;
 125         }
 126         WREG32(R500_SU_REG_DEST, (1 << num_pipes) - 1);
 127         /* Sub pixel 1/12 so we can have 4K rendering according to doc */
 128         tmp |= R300_TILE_SIZE_16 | R300_ENABLE_TILING;
 129         WREG32(R300_GB_TILE_CONFIG, tmp);
 130         if (r100_gui_wait_for_idle(rdev)) {
 131                 printk(KERN_WARNING "Failed to wait GUI idle while "
 132                        "programming pipes. Bad things might happen.\n");
 133         }
 134
 135         tmp = RREG32(R300_DST_PIPE_CONFIG);
 136         WREG32(R300_DST_PIPE_CONFIG, tmp | R300_PIPE_AUTO_CONFIG);
 137
 138         WREG32(R300_RB2D_DSTCACHE_MODE,
 139                RREG32(R300_RB2D_DSTCACHE_MODE) |
 140                R300_DC_AUTOFLUSH_ENABLE |
 141                R300_DC_DC_DISABLE_IGNORE_PE);
 142
 143         if (r100_gui_wait_for_idle(rdev)) {
 144                 printk(KERN_WARNING "Failed to wait GUI idle while "
 145                        "programming pipes. Bad things might happen.\n");
 146         }
 147
 148         if (rdev->family == CHIP_RV530) {
 149                 tmp = RREG32(RV530_GB_PIPE_SELECT2);
 150                 if ((tmp & 3) == 3)
 151                         rdev->num_z_pipes = 2;
 152                 else
 153                         rdev->num_z_pipes = 1;
 154         } else
 155                 rdev->num_z_pipes = 1;
 156
 157         DRM_INFO("radeon: %d quad pipes, %d z pipes initialized.\n",
 158                  rdev->num_gb_pipes, rdev->num_z_pipes);
 159 }
 160
 161 u32 r420_mc_rreg(struct radeon_device *rdev, u32 reg)
 162 {
 163         unsigned long flags;
 164         u32 r;
 165
 166         spin_lock_irqsave(&rdev->mc_idx_lock, flags);
 167         WREG32(R_0001F8_MC_IND_INDEX, S_0001F8_MC_IND_ADDR(reg));
 168         r = RREG32(R_0001FC_MC_IND_DATA);
 169         spin_unlock_irqrestore(&rdev->mc_idx_lock, flags);
 170         return r;
 171 }
 172
 173 void r420_mc_wreg(struct radeon_device *rdev, u32 reg, u32 v)
 174 {
 175         unsigned long flags;
 176
 177         spin_lock_irqsave(&rdev->mc_idx_lock, flags);
 178         WREG32(R_0001F8_MC_IND_INDEX, S_0001F8_MC_IND_ADDR(reg) |
 179                 S_0001F8_MC_IND_WR_EN(1));
 180         WREG32(R_0001FC_MC_IND_DATA, v);
 181         spin_unlock_irqrestore(&rdev->mc_idx_lock, flags);
 182 }
 183
 184 static void r420_debugfs(struct radeon_device *rdev)
 185 {
 186         if (r100_debugfs_rbbm_init(rdev)) {
 187                 DRM_ERROR("Failed to register debugfs file for RBBM !\n");
 188         }
 189         if (r420_debugfs_pipes_info_init(rdev)) {
 190                 DRM_ERROR("Failed to register debugfs file for pipes !\n");
 191         }
 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         struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
 210
 211         /* RV410 and R420 can lock up if CP DMA to host memory happens
 212          * while the 2D engine is busy.
 213          *
 214          * The proper workaround is to queue a RESYNC at the beginning
 215          * of the CP init, apparently.
 216          */
 217         radeon_scratch_get(rdev, &rdev->config.r300.resync_scratch);
 218         radeon_ring_lock(rdev, ring, 8);
 219         radeon_ring_write(ring, PACKET0(R300_CP_RESYNC_ADDR, 1));
 220         radeon_ring_write(ring, rdev->config.r300.resync_scratch);
 221         radeon_ring_write(ring, 0xDEADBEEF);
 222         radeon_ring_unlock_commit(rdev, ring, false);
 223 }
 224
 225 static void r420_cp_errata_fini(struct radeon_device *rdev)
 226 {
 227         struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
 228
 229         /* Catch the RESYNC we dispatched all the way back,
 230          * at the very beginning of the CP init.
 231          */
 232         radeon_ring_lock(rdev, ring, 8);
 233         radeon_ring_write(ring, PACKET0(R300_RB3D_DSTCACHE_CTLSTAT, 0));
 234         radeon_ring_write(ring, R300_RB3D_DC_FINISH);
 235         radeon_ring_unlock_commit(rdev, ring, false);
 236         radeon_scratch_free(rdev, rdev->config.r300.resync_scratch);
 237 }
 238
 239 static int r420_startup(struct radeon_device *rdev)
 240 {
 241         int r;
 242
 243         /* set common regs */
 244         r100_set_common_regs(rdev);
 245         /* program mc */
 246         r300_mc_program(rdev);
 247         /* Resume clock */
 248         r420_clock_resume(rdev);
 249         /* Initialize GART (initialize after TTM so we can allocate
 250          * memory through TTM but finalize after TTM) */
 251         if (rdev->flags & RADEON_IS_PCIE) {
 252                 r = rv370_pcie_gart_enable(rdev);
 253                 if (r)
 254                         return r;
 255         }
 256         if (rdev->flags & RADEON_IS_PCI) {
 257                 r = r100_pci_gart_enable(rdev);
 258                 if (r)
 259                         return r;
 260         }
 261         r420_pipes_init(rdev);
 262
 263         /* allocate wb buffer */
 264         r = radeon_wb_init(rdev);
 265         if (r)
 266                 return r;
 267
 268         r = radeon_fence_driver_start_ring(rdev, RADEON_RING_TYPE_GFX_INDEX);
 269         if (r) {
 270                 dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r);
 271                 return r;
 272         }
 273
 274         /* Enable IRQ */
 275         if (!rdev->irq.installed) {
 276                 r = radeon_irq_kms_init(rdev);
 277                 if (r)
 278                         return r;
 279         }
 280
 281         r100_irq_set(rdev);
 282         rdev->config.r300.hdp_cntl = RREG32(RADEON_HOST_PATH_CNTL);
 283         /* 1M ring buffer */
 284         r = r100_cp_init(rdev, 1024 * 1024);
 285         if (r) {
 286                 dev_err(rdev->dev, "failed initializing CP (%d).\n", r);
 287                 return r;
 288         }
 289         r420_cp_errata_init(rdev);
 290
 291         r = radeon_ib_pool_init(rdev);
 292         if (r) {
 293                 dev_err(rdev->dev, "IB initialization failed (%d).\n", r);
 294                 return r;
 295         }
 296
 297         return 0;
 298 }
 299
 300 int r420_resume(struct radeon_device *rdev)
 301 {
 302         int r;
 303
 304         /* Make sur GART are not working */
 305         if (rdev->flags & RADEON_IS_PCIE)
 306                 rv370_pcie_gart_disable(rdev);
 307         if (rdev->flags & RADEON_IS_PCI)
 308                 r100_pci_gart_disable(rdev);
 309         /* Resume clock before doing reset */
 310         r420_clock_resume(rdev);
 311         /* Reset gpu before posting otherwise ATOM will enter infinite loop */
 312         if (radeon_asic_reset(rdev)) {
 313                 dev_warn(rdev->dev, "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
 314                         RREG32(R_000E40_RBBM_STATUS),
 315                         RREG32(R_0007C0_CP_STAT));
 316         }
 317         /* check if cards are posted or not */
 318         if (rdev->is_atom_bios) {
 319                 atom_asic_init(rdev->mode_info.atom_context);
 320         } else {
 321                 radeon_combios_asic_init(rdev->ddev);
 322         }
 323         /* Resume clock after posting */
 324         r420_clock_resume(rdev);
 325         /* Initialize surface registers */
 326         radeon_surface_init(rdev);
 327
 328         rdev->accel_working = true;
 329         r = r420_startup(rdev);
 330         if (r) {
 331                 rdev->accel_working = false;
 332         }
 333         return r;
 334 }
 335
 336 int r420_suspend(struct radeon_device *rdev)
 337 {
 338         radeon_pm_suspend(rdev);
 339         r420_cp_errata_fini(rdev);
 340         r100_cp_disable(rdev);
 341         radeon_wb_disable(rdev);
 342         r100_irq_disable(rdev);
 343         if (rdev->flags & RADEON_IS_PCIE)
 344                 rv370_pcie_gart_disable(rdev);
 345         if (rdev->flags & RADEON_IS_PCI)
 346                 r100_pci_gart_disable(rdev);
 347         return 0;
 348 }
 349
 350 void r420_fini(struct radeon_device *rdev)
 351 {
 352         radeon_pm_fini(rdev);
 353         r100_cp_fini(rdev);
 354         radeon_wb_fini(rdev);
 355         radeon_ib_pool_fini(rdev);
 356         radeon_gem_fini(rdev);
 357         if (rdev->flags & RADEON_IS_PCIE)
 358                 rv370_pcie_gart_fini(rdev);
 359         if (rdev->flags & RADEON_IS_PCI)
 360                 r100_pci_gart_fini(rdev);
 361         radeon_agp_fini(rdev);
 362         radeon_irq_kms_fini(rdev);
 363         radeon_fence_driver_fini(rdev);
 364         radeon_bo_fini(rdev);
 365         if (rdev->is_atom_bios) {
 366                 radeon_atombios_fini(rdev);
 367         } else {
 368                 radeon_combios_fini(rdev);
 369         }
 370         kfree(rdev->bios);
 371         rdev->bios = NULL;
 372 }
 373
 374 int r420_init(struct radeon_device *rdev)
 375 {
 376         int r;
 377
 378         /* Initialize scratch registers */
 379         radeon_scratch_init(rdev);
 380         /* Initialize surface registers */
 381         radeon_surface_init(rdev);
 382         /* TODO: disable VGA need to use VGA request */
 383         /* restore some register to sane defaults */
 384         r100_restore_sanity(rdev);
 385         /* BIOS*/
 386         if (!radeon_get_bios(rdev)) {
 387                 if (ASIC_IS_AVIVO(rdev))
 388                         return -EINVAL;
 389         }
 390         if (rdev->is_atom_bios) {
 391                 r = radeon_atombios_init(rdev);
 392                 if (r) {
 393                         return r;
 394                 }
 395         } else {
 396                 r = radeon_combios_init(rdev);
 397                 if (r) {
 398                         return r;
 399                 }
 400         }
 401         /* Reset gpu before posting otherwise ATOM will enter infinite loop */
 402         if (radeon_asic_reset(rdev)) {
 403                 dev_warn(rdev->dev,
 404                         "GPU reset failed ! (0xE40=0x%08X, 0x7C0=0x%08X)\n",
 405                         RREG32(R_000E40_RBBM_STATUS),
 406                         RREG32(R_0007C0_CP_STAT));
 407         }
 408         /* check if cards are posted or not */
 409         if (radeon_boot_test_post_card(rdev) == false)
 410                 return -EINVAL;
 411
 412         /* Initialize clocks */
 413         radeon_get_clock_info(rdev->ddev);
 414         /* initialize AGP */
 415         if (rdev->flags & RADEON_IS_AGP) {
 416                 r = radeon_agp_init(rdev);
 417                 if (r) {
 418                         radeon_agp_disable(rdev);
 419                 }
 420         }
 421         /* initialize memory controller */
 422         r300_mc_init(rdev);
 423         r420_debugfs(rdev);
 424         /* Fence driver */
 425         r = radeon_fence_driver_init(rdev);
 426         if (r) {
 427                 return r;
 428         }
 429         /* Memory manager */
 430         r = radeon_bo_init(rdev);
 431         if (r) {
 432                 return r;
 433         }
 434         if (rdev->family == CHIP_R420)
 435                 r100_enable_bm(rdev);
 436
 437         if (rdev->flags & RADEON_IS_PCIE) {
 438                 r = rv370_pcie_gart_init(rdev);
 439                 if (r)
 440                         return r;
 441         }
 442         if (rdev->flags & RADEON_IS_PCI) {
 443                 r = r100_pci_gart_init(rdev);
 444                 if (r)
 445                         return r;
 446         }
 447         r420_set_reg_safe(rdev);
 448
 449         /* Initialize power management */
 450         radeon_pm_init(rdev);
 451
 452         rdev->accel_working = true;
 453         r = r420_startup(rdev);
 454         if (r) {
 455                 /* Somethings want wront with the accel init stop accel */
 456                 dev_err(rdev->dev, "Disabling GPU acceleration\n");
 457                 r100_cp_fini(rdev);
 458                 radeon_wb_fini(rdev);
 459                 radeon_ib_pool_fini(rdev);
 460                 radeon_irq_kms_fini(rdev);
 461                 if (rdev->flags & RADEON_IS_PCIE)
 462                         rv370_pcie_gart_fini(rdev);
 463                 if (rdev->flags & RADEON_IS_PCI)
 464                         r100_pci_gart_fini(rdev);
 465                 radeon_agp_fini(rdev);
 466                 rdev->accel_working = false;
 467         }
 468         return 0;
 469 }
 470
 471 /*
 472  * Debugfs info
 473  */
 474 #if defined(CONFIG_DEBUG_FS)
 475 static int r420_debugfs_pipes_info(struct seq_file *m, void *data)
 476 {
 477         struct drm_info_node *node = (struct drm_info_node *) m->private;
 478         struct drm_device *dev = node->minor->dev;
 479         struct radeon_device *rdev = dev->dev_private;
 480         uint32_t tmp;
 481
 482         tmp = RREG32(R400_GB_PIPE_SELECT);
 483         seq_printf(m, "GB_PIPE_SELECT 0x%08x\n", tmp);
 484         tmp = RREG32(R300_GB_TILE_CONFIG);
 485         seq_printf(m, "GB_TILE_CONFIG 0x%08x\n", tmp);
 486         tmp = RREG32(R300_DST_PIPE_CONFIG);
 487         seq_printf(m, "DST_PIPE_CONFIG 0x%08x\n", tmp);
 488         return 0;
 489 }
 490
 491 static struct drm_info_list r420_pipes_info_list[] = {
 492         {"r420_pipes_info", r420_debugfs_pipes_info, 0, NULL},
 493 };
 494 #endif
 495
 496 int r420_debugfs_pipes_info_init(struct radeon_device *rdev)
 497 {
 498 #if defined(CONFIG_DEBUG_FS)
 499         return radeon_debugfs_add_files(rdev, r420_pipes_info_list, 1);
 500 #else
 501         return 0;
 502 #endif
 503 }