drivers/gpu/drm/radeon/ni.c

   1 /*
   2  * Copyright 2010 Advanced Micro Devices, Inc.
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice shall be included in
  12  * all copies or substantial portions of the Software.
  13  *
  14  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  15  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  16  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  17  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
  18  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
  19  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
  20  * OTHER DEALINGS IN THE SOFTWARE.
  21  *
  22  * Authors: Alex Deucher
  23  */
  24 #include <linux/firmware.h>
  25 #include <linux/platform_device.h>
  26 #include <linux/slab.h>
  27 #include <linux/module.h>
  28 #include <drm/drmP.h>
  29 #include "radeon.h"
  30 #include "radeon_asic.h"
  31 #include <drm/radeon_drm.h>
  32 #include "nid.h"
  33 #include "atom.h"
  34 #include "ni_reg.h"
  35 #include "cayman_blit_shaders.h"
  36
  37 extern bool evergreen_is_display_hung(struct radeon_device *rdev);
  38 extern void evergreen_print_gpu_status_regs(struct radeon_device *rdev);
  39 extern void evergreen_mc_stop(struct radeon_device *rdev, struct evergreen_mc_save *save);
  40 extern void evergreen_mc_resume(struct radeon_device *rdev, struct evergreen_mc_save *save);
  41 extern int evergreen_mc_wait_for_idle(struct radeon_device *rdev);
  42 extern void evergreen_mc_program(struct radeon_device *rdev);
  43 extern void evergreen_irq_suspend(struct radeon_device *rdev);
  44 extern int evergreen_mc_init(struct radeon_device *rdev);
  45 extern void evergreen_fix_pci_max_read_req_size(struct radeon_device *rdev);
  46 extern void evergreen_pcie_gen2_enable(struct radeon_device *rdev);
  47 extern void si_rlc_fini(struct radeon_device *rdev);
  48 extern int si_rlc_init(struct radeon_device *rdev);
  49
  50 #define EVERGREEN_PFP_UCODE_SIZE 1120
  51 #define EVERGREEN_PM4_UCODE_SIZE 1376
  52 #define EVERGREEN_RLC_UCODE_SIZE 768
  53 #define BTC_MC_UCODE_SIZE 6024
  54
  55 #define CAYMAN_PFP_UCODE_SIZE 2176
  56 #define CAYMAN_PM4_UCODE_SIZE 2176
  57 #define CAYMAN_RLC_UCODE_SIZE 1024
  58 #define CAYMAN_MC_UCODE_SIZE 6037
  59
  60 #define ARUBA_RLC_UCODE_SIZE 1536
  61
  62 /* Firmware Names */
  63 MODULE_FIRMWARE("radeon/BARTS_pfp.bin");
  64 MODULE_FIRMWARE("radeon/BARTS_me.bin");
  65 MODULE_FIRMWARE("radeon/BARTS_mc.bin");
  66 MODULE_FIRMWARE("radeon/BTC_rlc.bin");
  67 MODULE_FIRMWARE("radeon/TURKS_pfp.bin");
  68 MODULE_FIRMWARE("radeon/TURKS_me.bin");
  69 MODULE_FIRMWARE("radeon/TURKS_mc.bin");
  70 MODULE_FIRMWARE("radeon/CAICOS_pfp.bin");
  71 MODULE_FIRMWARE("radeon/CAICOS_me.bin");
  72 MODULE_FIRMWARE("radeon/CAICOS_mc.bin");
  73 MODULE_FIRMWARE("radeon/CAYMAN_pfp.bin");
  74 MODULE_FIRMWARE("radeon/CAYMAN_me.bin");
  75 MODULE_FIRMWARE("radeon/CAYMAN_mc.bin");
  76 MODULE_FIRMWARE("radeon/CAYMAN_rlc.bin");
  77 MODULE_FIRMWARE("radeon/ARUBA_pfp.bin");
  78 MODULE_FIRMWARE("radeon/ARUBA_me.bin");
  79 MODULE_FIRMWARE("radeon/ARUBA_rlc.bin");
  80
  81 #define BTC_IO_MC_REGS_SIZE 29
  82
  83 static const u32 barts_io_mc_regs[BTC_IO_MC_REGS_SIZE][2] = {
  84         {0x00000077, 0xff010100},
  85         {0x00000078, 0x00000000},
  86         {0x00000079, 0x00001434},
  87         {0x0000007a, 0xcc08ec08},
  88         {0x0000007b, 0x00040000},
  89         {0x0000007c, 0x000080c0},
  90         {0x0000007d, 0x09000000},
  91         {0x0000007e, 0x00210404},
  92         {0x00000081, 0x08a8e800},
  93         {0x00000082, 0x00030444},
  94         {0x00000083, 0x00000000},
  95         {0x00000085, 0x00000001},
  96         {0x00000086, 0x00000002},
  97         {0x00000087, 0x48490000},
  98         {0x00000088, 0x20244647},
  99         {0x00000089, 0x00000005},
 100         {0x0000008b, 0x66030000},
 101         {0x0000008c, 0x00006603},
 102         {0x0000008d, 0x00000100},
 103         {0x0000008f, 0x00001c0a},
 104         {0x00000090, 0xff000001},
 105         {0x00000094, 0x00101101},
 106         {0x00000095, 0x00000fff},
 107         {0x00000096, 0x00116fff},
 108         {0x00000097, 0x60010000},
 109         {0x00000098, 0x10010000},
 110         {0x00000099, 0x00006000},
 111         {0x0000009a, 0x00001000},
 112         {0x0000009f, 0x00946a00}
 113 };
 114
 115 static const u32 turks_io_mc_regs[BTC_IO_MC_REGS_SIZE][2] = {
 116         {0x00000077, 0xff010100},
 117         {0x00000078, 0x00000000},
 118         {0x00000079, 0x00001434},
 119         {0x0000007a, 0xcc08ec08},
 120         {0x0000007b, 0x00040000},
 121         {0x0000007c, 0x000080c0},
 122         {0x0000007d, 0x09000000},
 123         {0x0000007e, 0x00210404},
 124         {0x00000081, 0x08a8e800},
 125         {0x00000082, 0x00030444},
 126         {0x00000083, 0x00000000},
 127         {0x00000085, 0x00000001},
 128         {0x00000086, 0x00000002},
 129         {0x00000087, 0x48490000},
 130         {0x00000088, 0x20244647},
 131         {0x00000089, 0x00000005},
 132         {0x0000008b, 0x66030000},
 133         {0x0000008c, 0x00006603},
 134         {0x0000008d, 0x00000100},
 135         {0x0000008f, 0x00001c0a},
 136         {0x00000090, 0xff000001},
 137         {0x00000094, 0x00101101},
 138         {0x00000095, 0x00000fff},
 139         {0x00000096, 0x00116fff},
 140         {0x00000097, 0x60010000},
 141         {0x00000098, 0x10010000},
 142         {0x00000099, 0x00006000},
 143         {0x0000009a, 0x00001000},
 144         {0x0000009f, 0x00936a00}
 145 };
 146
 147 static const u32 caicos_io_mc_regs[BTC_IO_MC_REGS_SIZE][2] = {
 148         {0x00000077, 0xff010100},
 149         {0x00000078, 0x00000000},
 150         {0x00000079, 0x00001434},
 151         {0x0000007a, 0xcc08ec08},
 152         {0x0000007b, 0x00040000},
 153         {0x0000007c, 0x000080c0},
 154         {0x0000007d, 0x09000000},
 155         {0x0000007e, 0x00210404},
 156         {0x00000081, 0x08a8e800},
 157         {0x00000082, 0x00030444},
 158         {0x00000083, 0x00000000},
 159         {0x00000085, 0x00000001},
 160         {0x00000086, 0x00000002},
 161         {0x00000087, 0x48490000},
 162         {0x00000088, 0x20244647},
 163         {0x00000089, 0x00000005},
 164         {0x0000008b, 0x66030000},
 165         {0x0000008c, 0x00006603},
 166         {0x0000008d, 0x00000100},
 167         {0x0000008f, 0x00001c0a},
 168         {0x00000090, 0xff000001},
 169         {0x00000094, 0x00101101},
 170         {0x00000095, 0x00000fff},
 171         {0x00000096, 0x00116fff},
 172         {0x00000097, 0x60010000},
 173         {0x00000098, 0x10010000},
 174         {0x00000099, 0x00006000},
 175         {0x0000009a, 0x00001000},
 176         {0x0000009f, 0x00916a00}
 177 };
 178
 179 static const u32 cayman_io_mc_regs[BTC_IO_MC_REGS_SIZE][2] = {
 180         {0x00000077, 0xff010100},
 181         {0x00000078, 0x00000000},
 182         {0x00000079, 0x00001434},
 183         {0x0000007a, 0xcc08ec08},
 184         {0x0000007b, 0x00040000},
 185         {0x0000007c, 0x000080c0},
 186         {0x0000007d, 0x09000000},
 187         {0x0000007e, 0x00210404},
 188         {0x00000081, 0x08a8e800},
 189         {0x00000082, 0x00030444},
 190         {0x00000083, 0x00000000},
 191         {0x00000085, 0x00000001},
 192         {0x00000086, 0x00000002},
 193         {0x00000087, 0x48490000},
 194         {0x00000088, 0x20244647},
 195         {0x00000089, 0x00000005},
 196         {0x0000008b, 0x66030000},
 197         {0x0000008c, 0x00006603},
 198         {0x0000008d, 0x00000100},
 199         {0x0000008f, 0x00001c0a},
 200         {0x00000090, 0xff000001},
 201         {0x00000094, 0x00101101},
 202         {0x00000095, 0x00000fff},
 203         {0x00000096, 0x00116fff},
 204         {0x00000097, 0x60010000},
 205         {0x00000098, 0x10010000},
 206         {0x00000099, 0x00006000},
 207         {0x0000009a, 0x00001000},
 208         {0x0000009f, 0x00976b00}
 209 };
 210
 211 int ni_mc_load_microcode(struct radeon_device *rdev)
 212 {
 213         const __be32 *fw_data;
 214         u32 mem_type, running, blackout = 0;
 215         u32 *io_mc_regs;
 216         int i, ucode_size, regs_size;
 217
 218         if (!rdev->mc_fw)
 219                 return -EINVAL;
 220
 221         switch (rdev->family) {
 222         case CHIP_BARTS:
 223                 io_mc_regs = (u32 *)&barts_io_mc_regs;
 224                 ucode_size = BTC_MC_UCODE_SIZE;
 225                 regs_size = BTC_IO_MC_REGS_SIZE;
 226                 break;
 227         case CHIP_TURKS:
 228                 io_mc_regs = (u32 *)&turks_io_mc_regs;
 229                 ucode_size = BTC_MC_UCODE_SIZE;
 230                 regs_size = BTC_IO_MC_REGS_SIZE;
 231                 break;
 232         case CHIP_CAICOS:
 233         default:
 234                 io_mc_regs = (u32 *)&caicos_io_mc_regs;
 235                 ucode_size = BTC_MC_UCODE_SIZE;
 236                 regs_size = BTC_IO_MC_REGS_SIZE;
 237                 break;
 238         case CHIP_CAYMAN:
 239                 io_mc_regs = (u32 *)&cayman_io_mc_regs;
 240                 ucode_size = CAYMAN_MC_UCODE_SIZE;
 241                 regs_size = BTC_IO_MC_REGS_SIZE;
 242                 break;
 243         }
 244
 245         mem_type = (RREG32(MC_SEQ_MISC0) & MC_SEQ_MISC0_GDDR5_MASK) >> MC_SEQ_MISC0_GDDR5_SHIFT;
 246         running = RREG32(MC_SEQ_SUP_CNTL) & RUN_MASK;
 247
 248         if ((mem_type == MC_SEQ_MISC0_GDDR5_VALUE) && (running == 0)) {
 249                 if (running) {
 250                         blackout = RREG32(MC_SHARED_BLACKOUT_CNTL);
 251                         WREG32(MC_SHARED_BLACKOUT_CNTL, 1);
 252                 }
 253
 254                 /* reset the engine and set to writable */
 255                 WREG32(MC_SEQ_SUP_CNTL, 0x00000008);
 256                 WREG32(MC_SEQ_SUP_CNTL, 0x00000010);
 257
 258                 /* load mc io regs */
 259                 for (i = 0; i < regs_size; i++) {
 260                         WREG32(MC_SEQ_IO_DEBUG_INDEX, io_mc_regs[(i << 1)]);
 261                         WREG32(MC_SEQ_IO_DEBUG_DATA, io_mc_regs[(i << 1) + 1]);
 262                 }
 263                 /* load the MC ucode */
 264                 fw_data = (const __be32 *)rdev->mc_fw->data;
 265                 for (i = 0; i < ucode_size; i++)
 266                         WREG32(MC_SEQ_SUP_PGM, be32_to_cpup(fw_data++));
 267
 268                 /* put the engine back into the active state */
 269                 WREG32(MC_SEQ_SUP_CNTL, 0x00000008);
 270                 WREG32(MC_SEQ_SUP_CNTL, 0x00000004);
 271                 WREG32(MC_SEQ_SUP_CNTL, 0x00000001);
 272
 273                 /* wait for training to complete */
 274                 for (i = 0; i < rdev->usec_timeout; i++) {
 275                         if (RREG32(MC_IO_PAD_CNTL_D0) & MEM_FALL_OUT_CMD)
 276                                 break;
 277                         udelay(1);
 278                 }
 279
 280                 if (running)
 281                         WREG32(MC_SHARED_BLACKOUT_CNTL, blackout);
 282         }
 283
 284         return 0;
 285 }
 286
 287 int ni_init_microcode(struct radeon_device *rdev)
 288 {
 289         struct platform_device *pdev;
 290         const char *chip_name;
 291         const char *rlc_chip_name;
 292         size_t pfp_req_size, me_req_size, rlc_req_size, mc_req_size;
 293         char fw_name[30];
 294         int err;
 295
 296         DRM_DEBUG("\n");
 297
 298         pdev = platform_device_register_simple("radeon_cp", 0, NULL, 0);
 299         err = IS_ERR(pdev);
 300         if (err) {
 301                 printk(KERN_ERR "radeon_cp: Failed to register firmware\n");
 302                 return -EINVAL;
 303         }
 304
 305         switch (rdev->family) {
 306         case CHIP_BARTS:
 307                 chip_name = "BARTS";
 308                 rlc_chip_name = "BTC";
 309                 pfp_req_size = EVERGREEN_PFP_UCODE_SIZE * 4;
 310                 me_req_size = EVERGREEN_PM4_UCODE_SIZE * 4;
 311                 rlc_req_size = EVERGREEN_RLC_UCODE_SIZE * 4;
 312                 mc_req_size = BTC_MC_UCODE_SIZE * 4;
 313                 break;
 314         case CHIP_TURKS:
 315                 chip_name = "TURKS";
 316                 rlc_chip_name = "BTC";
 317                 pfp_req_size = EVERGREEN_PFP_UCODE_SIZE * 4;
 318                 me_req_size = EVERGREEN_PM4_UCODE_SIZE * 4;
 319                 rlc_req_size = EVERGREEN_RLC_UCODE_SIZE * 4;
 320                 mc_req_size = BTC_MC_UCODE_SIZE * 4;
 321                 break;
 322         case CHIP_CAICOS:
 323                 chip_name = "CAICOS";
 324                 rlc_chip_name = "BTC";
 325                 pfp_req_size = EVERGREEN_PFP_UCODE_SIZE * 4;
 326                 me_req_size = EVERGREEN_PM4_UCODE_SIZE * 4;
 327                 rlc_req_size = EVERGREEN_RLC_UCODE_SIZE * 4;
 328                 mc_req_size = BTC_MC_UCODE_SIZE * 4;
 329                 break;
 330         case CHIP_CAYMAN:
 331                 chip_name = "CAYMAN";
 332                 rlc_chip_name = "CAYMAN";
 333                 pfp_req_size = CAYMAN_PFP_UCODE_SIZE * 4;
 334                 me_req_size = CAYMAN_PM4_UCODE_SIZE * 4;
 335                 rlc_req_size = CAYMAN_RLC_UCODE_SIZE * 4;
 336                 mc_req_size = CAYMAN_MC_UCODE_SIZE * 4;
 337                 break;
 338         case CHIP_ARUBA:
 339                 chip_name = "ARUBA";
 340                 rlc_chip_name = "ARUBA";
 341                 /* pfp/me same size as CAYMAN */
 342                 pfp_req_size = CAYMAN_PFP_UCODE_SIZE * 4;
 343                 me_req_size = CAYMAN_PM4_UCODE_SIZE * 4;
 344                 rlc_req_size = ARUBA_RLC_UCODE_SIZE * 4;
 345                 mc_req_size = 0;
 346                 break;
 347         default: BUG();
 348         }
 349
 350         DRM_INFO("Loading %s Microcode\n", chip_name);
 351
 352         snprintf(fw_name, sizeof(fw_name), "radeon/%s_pfp.bin", chip_name);
 353         err = request_firmware(&rdev->pfp_fw, fw_name, &pdev->dev);
 354         if (err)
 355                 goto out;
 356         if (rdev->pfp_fw->size != pfp_req_size) {
 357                 printk(KERN_ERR
 358                        "ni_cp: Bogus length %zu in firmware \"%s\"\n",
 359                        rdev->pfp_fw->size, fw_name);
 360                 err = -EINVAL;
 361                 goto out;
 362         }
 363
 364         snprintf(fw_name, sizeof(fw_name), "radeon/%s_me.bin", chip_name);
 365         err = request_firmware(&rdev->me_fw, fw_name, &pdev->dev);
 366         if (err)
 367                 goto out;
 368         if (rdev->me_fw->size != me_req_size) {
 369                 printk(KERN_ERR
 370                        "ni_cp: Bogus length %zu in firmware \"%s\"\n",
 371                        rdev->me_fw->size, fw_name);
 372                 err = -EINVAL;
 373         }
 374
 375         snprintf(fw_name, sizeof(fw_name), "radeon/%s_rlc.bin", rlc_chip_name);
 376         err = request_firmware(&rdev->rlc_fw, fw_name, &pdev->dev);
 377         if (err)
 378                 goto out;
 379         if (rdev->rlc_fw->size != rlc_req_size) {
 380                 printk(KERN_ERR
 381                        "ni_rlc: Bogus length %zu in firmware \"%s\"\n",
 382                        rdev->rlc_fw->size, fw_name);
 383                 err = -EINVAL;
 384         }
 385
 386         /* no MC ucode on TN */
 387         if (!(rdev->flags & RADEON_IS_IGP)) {
 388                 snprintf(fw_name, sizeof(fw_name), "radeon/%s_mc.bin", chip_name);
 389                 err = request_firmware(&rdev->mc_fw, fw_name, &pdev->dev);
 390                 if (err)
 391                         goto out;
 392                 if (rdev->mc_fw->size != mc_req_size) {
 393                         printk(KERN_ERR
 394                                "ni_mc: Bogus length %zu in firmware \"%s\"\n",
 395                                rdev->mc_fw->size, fw_name);
 396                         err = -EINVAL;
 397                 }
 398         }
 399 out:
 400         platform_device_unregister(pdev);
 401
 402         if (err) {
 403                 if (err != -EINVAL)
 404                         printk(KERN_ERR
 405                                "ni_cp: Failed to load firmware \"%s\"\n",
 406                                fw_name);
 407                 release_firmware(rdev->pfp_fw);
 408                 rdev->pfp_fw = NULL;
 409                 release_firmware(rdev->me_fw);
 410                 rdev->me_fw = NULL;
 411                 release_firmware(rdev->rlc_fw);
 412                 rdev->rlc_fw = NULL;
 413                 release_firmware(rdev->mc_fw);
 414                 rdev->mc_fw = NULL;
 415         }
 416         return err;
 417 }
 418
 419 /*
 420  * Core functions
 421  */
 422 static void cayman_gpu_init(struct radeon_device *rdev)
 423 {
 424         u32 gb_addr_config = 0;
 425         u32 mc_shared_chmap, mc_arb_ramcfg;
 426         u32 cgts_tcc_disable;
 427         u32 sx_debug_1;
 428         u32 smx_dc_ctl0;
 429         u32 cgts_sm_ctrl_reg;
 430         u32 hdp_host_path_cntl;
 431         u32 tmp;
 432         u32 disabled_rb_mask;
 433         int i, j;
 434
 435         switch (rdev->family) {
 436         case CHIP_CAYMAN:
 437                 rdev->config.cayman.max_shader_engines = 2;
 438                 rdev->config.cayman.max_pipes_per_simd = 4;
 439                 rdev->config.cayman.max_tile_pipes = 8;
 440                 rdev->config.cayman.max_simds_per_se = 12;
 441                 rdev->config.cayman.max_backends_per_se = 4;
 442                 rdev->config.cayman.max_texture_channel_caches = 8;
 443                 rdev->config.cayman.max_gprs = 256;
 444                 rdev->config.cayman.max_threads = 256;
 445                 rdev->config.cayman.max_gs_threads = 32;
 446                 rdev->config.cayman.max_stack_entries = 512;
 447                 rdev->config.cayman.sx_num_of_sets = 8;
 448                 rdev->config.cayman.sx_max_export_size = 256;
 449                 rdev->config.cayman.sx_max_export_pos_size = 64;
 450                 rdev->config.cayman.sx_max_export_smx_size = 192;
 451                 rdev->config.cayman.max_hw_contexts = 8;
 452                 rdev->config.cayman.sq_num_cf_insts = 2;
 453
 454                 rdev->config.cayman.sc_prim_fifo_size = 0x100;
 455                 rdev->config.cayman.sc_hiz_tile_fifo_size = 0x30;
 456                 rdev->config.cayman.sc_earlyz_tile_fifo_size = 0x130;
 457                 gb_addr_config = CAYMAN_GB_ADDR_CONFIG_GOLDEN;
 458                 break;
 459         case CHIP_ARUBA:
 460         default:
 461                 rdev->config.cayman.max_shader_engines = 1;
 462                 rdev->config.cayman.max_pipes_per_simd = 4;
 463                 rdev->config.cayman.max_tile_pipes = 2;
 464                 if ((rdev->pdev->device == 0x9900) ||
 465                     (rdev->pdev->device == 0x9901) ||
 466                     (rdev->pdev->device == 0x9905) ||
 467                     (rdev->pdev->device == 0x9906) ||
 468                     (rdev->pdev->device == 0x9907) ||
 469                     (rdev->pdev->device == 0x9908) ||
 470                     (rdev->pdev->device == 0x9909) ||
 471                     (rdev->pdev->device == 0x9910) ||
 472                     (rdev->pdev->device == 0x9917)) {
 473                         rdev->config.cayman.max_simds_per_se = 6;
 474                         rdev->config.cayman.max_backends_per_se = 2;
 475                 } else if ((rdev->pdev->device == 0x9903) ||
 476                            (rdev->pdev->device == 0x9904) ||
 477                            (rdev->pdev->device == 0x990A) ||
 478                            (rdev->pdev->device == 0x9913) ||
 479                            (rdev->pdev->device == 0x9918)) {
 480                         rdev->config.cayman.max_simds_per_se = 4;
 481                         rdev->config.cayman.max_backends_per_se = 2;
 482                 } else if ((rdev->pdev->device == 0x9919) ||
 483                            (rdev->pdev->device == 0x9990) ||
 484                            (rdev->pdev->device == 0x9991) ||
 485                            (rdev->pdev->device == 0x9994) ||
 486                            (rdev->pdev->device == 0x99A0)) {
 487                         rdev->config.cayman.max_simds_per_se = 3;
 488                         rdev->config.cayman.max_backends_per_se = 1;
 489                 } else {
 490                         rdev->config.cayman.max_simds_per_se = 2;
 491                         rdev->config.cayman.max_backends_per_se = 1;
 492                 }
 493                 rdev->config.cayman.max_texture_channel_caches = 2;
 494                 rdev->config.cayman.max_gprs = 256;
 495                 rdev->config.cayman.max_threads = 256;
 496                 rdev->config.cayman.max_gs_threads = 32;
 497                 rdev->config.cayman.max_stack_entries = 512;
 498                 rdev->config.cayman.sx_num_of_sets = 8;
 499                 rdev->config.cayman.sx_max_export_size = 256;
 500                 rdev->config.cayman.sx_max_export_pos_size = 64;
 501                 rdev->config.cayman.sx_max_export_smx_size = 192;
 502                 rdev->config.cayman.max_hw_contexts = 8;
 503                 rdev->config.cayman.sq_num_cf_insts = 2;
 504
 505                 rdev->config.cayman.sc_prim_fifo_size = 0x40;
 506                 rdev->config.cayman.sc_hiz_tile_fifo_size = 0x30;
 507                 rdev->config.cayman.sc_earlyz_tile_fifo_size = 0x130;
 508                 gb_addr_config = ARUBA_GB_ADDR_CONFIG_GOLDEN;
 509                 break;
 510         }
 511
 512         /* Initialize HDP */
 513         for (i = 0, j = 0; i < 32; i++, j += 0x18) {
 514                 WREG32((0x2c14 + j), 0x00000000);
 515                 WREG32((0x2c18 + j), 0x00000000);
 516                 WREG32((0x2c1c + j), 0x00000000);
 517                 WREG32((0x2c20 + j), 0x00000000);
 518                 WREG32((0x2c24 + j), 0x00000000);
 519         }
 520
 521         WREG32(GRBM_CNTL, GRBM_READ_TIMEOUT(0xff));
 522
 523         evergreen_fix_pci_max_read_req_size(rdev);
 524
 525         mc_shared_chmap = RREG32(MC_SHARED_CHMAP);
 526         mc_arb_ramcfg = RREG32(MC_ARB_RAMCFG);
 527
 528         tmp = (mc_arb_ramcfg & NOOFCOLS_MASK) >> NOOFCOLS_SHIFT;
 529         rdev->config.cayman.mem_row_size_in_kb = (4 * (1 << (8 + tmp))) / 1024;
 530         if (rdev->config.cayman.mem_row_size_in_kb > 4)
 531                 rdev->config.cayman.mem_row_size_in_kb = 4;
 532         /* XXX use MC settings? */
 533         rdev->config.cayman.shader_engine_tile_size = 32;
 534         rdev->config.cayman.num_gpus = 1;
 535         rdev->config.cayman.multi_gpu_tile_size = 64;
 536
 537         tmp = (gb_addr_config & NUM_PIPES_MASK) >> NUM_PIPES_SHIFT;
 538         rdev->config.cayman.num_tile_pipes = (1 << tmp);
 539         tmp = (gb_addr_config & PIPE_INTERLEAVE_SIZE_MASK) >> PIPE_INTERLEAVE_SIZE_SHIFT;
 540         rdev->config.cayman.mem_max_burst_length_bytes = (tmp + 1) * 256;
 541         tmp = (gb_addr_config & NUM_SHADER_ENGINES_MASK) >> NUM_SHADER_ENGINES_SHIFT;
 542         rdev->config.cayman.num_shader_engines = tmp + 1;
 543         tmp = (gb_addr_config & NUM_GPUS_MASK) >> NUM_GPUS_SHIFT;
 544         rdev->config.cayman.num_gpus = tmp + 1;
 545         tmp = (gb_addr_config & MULTI_GPU_TILE_SIZE_MASK) >> MULTI_GPU_TILE_SIZE_SHIFT;
 546         rdev->config.cayman.multi_gpu_tile_size = 1 << tmp;
 547         tmp = (gb_addr_config & ROW_SIZE_MASK) >> ROW_SIZE_SHIFT;
 548         rdev->config.cayman.mem_row_size_in_kb = 1 << tmp;
 549
 550
 551         /* setup tiling info dword.  gb_addr_config is not adequate since it does
 552          * not have bank info, so create a custom tiling dword.
 553          * bits 3:0   num_pipes
 554          * bits 7:4   num_banks
 555          * bits 11:8  group_size
 556          * bits 15:12 row_size
 557          */
 558         rdev->config.cayman.tile_config = 0;
 559         switch (rdev->config.cayman.num_tile_pipes) {
 560         case 1:
 561         default:
 562                 rdev->config.cayman.tile_config |= (0 << 0);
 563                 break;
 564         case 2:
 565                 rdev->config.cayman.tile_config |= (1 << 0);
 566                 break;
 567         case 4:
 568                 rdev->config.cayman.tile_config |= (2 << 0);
 569                 break;
 570         case 8:
 571                 rdev->config.cayman.tile_config |= (3 << 0);
 572                 break;
 573         }
 574
 575         /* num banks is 8 on all fusion asics. 0 = 4, 1 = 8, 2 = 16 */
 576         if (rdev->flags & RADEON_IS_IGP)
 577                 rdev->config.cayman.tile_config |= 1 << 4;
 578         else {
 579                 switch ((mc_arb_ramcfg & NOOFBANK_MASK) >> NOOFBANK_SHIFT) {
 580                 case 0: /* four banks */
 581                         rdev->config.cayman.tile_config |= 0 << 4;
 582                         break;
 583                 case 1: /* eight banks */
 584                         rdev->config.cayman.tile_config |= 1 << 4;
 585                         break;
 586                 case 2: /* sixteen banks */
 587                 default:
 588                         rdev->config.cayman.tile_config |= 2 << 4;
 589                         break;
 590                 }
 591         }
 592         rdev->config.cayman.tile_config |=
 593                 ((gb_addr_config & PIPE_INTERLEAVE_SIZE_MASK) >> PIPE_INTERLEAVE_SIZE_SHIFT) << 8;
 594         rdev->config.cayman.tile_config |=
 595                 ((gb_addr_config & ROW_SIZE_MASK) >> ROW_SIZE_SHIFT) << 12;
 596
 597         tmp = 0;
 598         for (i = (rdev->config.cayman.max_shader_engines - 1); i >= 0; i--) {
 599                 u32 rb_disable_bitmap;
 600
 601                 WREG32(GRBM_GFX_INDEX, INSTANCE_BROADCAST_WRITES | SE_INDEX(i));
 602                 WREG32(RLC_GFX_INDEX, INSTANCE_BROADCAST_WRITES | SE_INDEX(i));
 603                 rb_disable_bitmap = (RREG32(CC_RB_BACKEND_DISABLE) & 0x00ff0000) >> 16;
 604                 tmp <<= 4;
 605                 tmp |= rb_disable_bitmap;
 606         }
 607         /* enabled rb are just the one not disabled :) */
 608         disabled_rb_mask = tmp;
 609
 610         WREG32(GRBM_GFX_INDEX, INSTANCE_BROADCAST_WRITES | SE_BROADCAST_WRITES);
 611         WREG32(RLC_GFX_INDEX, INSTANCE_BROADCAST_WRITES | SE_BROADCAST_WRITES);
 612
 613         WREG32(GB_ADDR_CONFIG, gb_addr_config);
 614         WREG32(DMIF_ADDR_CONFIG, gb_addr_config);
 615         WREG32(HDP_ADDR_CONFIG, gb_addr_config);
 616         WREG32(DMA_TILING_CONFIG + DMA0_REGISTER_OFFSET, gb_addr_config);
 617         WREG32(DMA_TILING_CONFIG + DMA1_REGISTER_OFFSET, gb_addr_config);
 618
 619         tmp = gb_addr_config & NUM_PIPES_MASK;
 620         tmp = r6xx_remap_render_backend(rdev, tmp,
 621                                         rdev->config.cayman.max_backends_per_se *
 622                                         rdev->config.cayman.max_shader_engines,
 623                                         CAYMAN_MAX_BACKENDS, disabled_rb_mask);
 624         WREG32(GB_BACKEND_MAP, tmp);
 625
 626         cgts_tcc_disable = 0xffff0000;
 627         for (i = 0; i < rdev->config.cayman.max_texture_channel_caches; i++)
 628                 cgts_tcc_disable &= ~(1 << (16 + i));
 629         WREG32(CGTS_TCC_DISABLE, cgts_tcc_disable);
 630         WREG32(CGTS_SYS_TCC_DISABLE, cgts_tcc_disable);
 631         WREG32(CGTS_USER_SYS_TCC_DISABLE, cgts_tcc_disable);
 632         WREG32(CGTS_USER_TCC_DISABLE, cgts_tcc_disable);
 633
 634         /* reprogram the shader complex */
 635         cgts_sm_ctrl_reg = RREG32(CGTS_SM_CTRL_REG);
 636         for (i = 0; i < 16; i++)
 637                 WREG32(CGTS_SM_CTRL_REG, OVERRIDE);
 638         WREG32(CGTS_SM_CTRL_REG, cgts_sm_ctrl_reg);
 639
 640         /* set HW defaults for 3D engine */
 641         WREG32(CP_MEQ_THRESHOLDS, MEQ1_START(0x30) | MEQ2_START(0x60));
 642
 643         sx_debug_1 = RREG32(SX_DEBUG_1);
 644         sx_debug_1 |= ENABLE_NEW_SMX_ADDRESS;
 645         WREG32(SX_DEBUG_1, sx_debug_1);
 646
 647         smx_dc_ctl0 = RREG32(SMX_DC_CTL0);
 648         smx_dc_ctl0 &= ~NUMBER_OF_SETS(0x1ff);
 649         smx_dc_ctl0 |= NUMBER_OF_SETS(rdev->config.cayman.sx_num_of_sets);
 650         WREG32(SMX_DC_CTL0, smx_dc_ctl0);
 651
 652         WREG32(SPI_CONFIG_CNTL_1, VTX_DONE_DELAY(4) | CRC_SIMD_ID_WADDR_DISABLE);
 653
 654         /* need to be explicitly zero-ed */
 655         WREG32(VGT_OFFCHIP_LDS_BASE, 0);
 656         WREG32(SQ_LSTMP_RING_BASE, 0);
 657         WREG32(SQ_HSTMP_RING_BASE, 0);
 658         WREG32(SQ_ESTMP_RING_BASE, 0);
 659         WREG32(SQ_GSTMP_RING_BASE, 0);
 660         WREG32(SQ_VSTMP_RING_BASE, 0);
 661         WREG32(SQ_PSTMP_RING_BASE, 0);
 662
 663         WREG32(TA_CNTL_AUX, DISABLE_CUBE_ANISO);
 664
 665         WREG32(SX_EXPORT_BUFFER_SIZES, (COLOR_BUFFER_SIZE((rdev->config.cayman.sx_max_export_size / 4) - 1) |
 666                                         POSITION_BUFFER_SIZE((rdev->config.cayman.sx_max_export_pos_size / 4) - 1) |
 667                                         SMX_BUFFER_SIZE((rdev->config.cayman.sx_max_export_smx_size / 4) - 1)));
 668
 669         WREG32(PA_SC_FIFO_SIZE, (SC_PRIM_FIFO_SIZE(rdev->config.cayman.sc_prim_fifo_size) |
 670                                  SC_HIZ_TILE_FIFO_SIZE(rdev->config.cayman.sc_hiz_tile_fifo_size) |
 671                                  SC_EARLYZ_TILE_FIFO_SIZE(rdev->config.cayman.sc_earlyz_tile_fifo_size)));
 672
 673
 674         WREG32(VGT_NUM_INSTANCES, 1);
 675
 676         WREG32(CP_PERFMON_CNTL, 0);
 677
 678         WREG32(SQ_MS_FIFO_SIZES, (CACHE_FIFO_SIZE(16 * rdev->config.cayman.sq_num_cf_insts) |
 679                                   FETCH_FIFO_HIWATER(0x4) |
 680                                   DONE_FIFO_HIWATER(0xe0) |
 681                                   ALU_UPDATE_FIFO_HIWATER(0x8)));
 682
 683         WREG32(SQ_GPR_RESOURCE_MGMT_1, NUM_CLAUSE_TEMP_GPRS(4));
 684         WREG32(SQ_CONFIG, (VC_ENABLE |
 685                            EXPORT_SRC_C |
 686                            GFX_PRIO(0) |
 687                            CS1_PRIO(0) |
 688                            CS2_PRIO(1)));
 689         WREG32(SQ_DYN_GPR_CNTL_PS_FLUSH_REQ, DYN_GPR_ENABLE);
 690
 691         WREG32(PA_SC_FORCE_EOV_MAX_CNTS, (FORCE_EOV_MAX_CLK_CNT(4095) |
 692                                           FORCE_EOV_MAX_REZ_CNT(255)));
 693
 694         WREG32(VGT_CACHE_INVALIDATION, CACHE_INVALIDATION(VC_AND_TC) |
 695                AUTO_INVLD_EN(ES_AND_GS_AUTO));
 696
 697         WREG32(VGT_GS_VERTEX_REUSE, 16);
 698         WREG32(PA_SC_LINE_STIPPLE_STATE, 0);
 699
 700         WREG32(CB_PERF_CTR0_SEL_0, 0);
 701         WREG32(CB_PERF_CTR0_SEL_1, 0);
 702         WREG32(CB_PERF_CTR1_SEL_0, 0);
 703         WREG32(CB_PERF_CTR1_SEL_1, 0);
 704         WREG32(CB_PERF_CTR2_SEL_0, 0);
 705         WREG32(CB_PERF_CTR2_SEL_1, 0);
 706         WREG32(CB_PERF_CTR3_SEL_0, 0);
 707         WREG32(CB_PERF_CTR3_SEL_1, 0);
 708
 709         tmp = RREG32(HDP_MISC_CNTL);
 710         tmp |= HDP_FLUSH_INVALIDATE_CACHE;
 711         WREG32(HDP_MISC_CNTL, tmp);
 712
 713         hdp_host_path_cntl = RREG32(HDP_HOST_PATH_CNTL);
 714         WREG32(HDP_HOST_PATH_CNTL, hdp_host_path_cntl);
 715
 716         WREG32(PA_CL_ENHANCE, CLIP_VTX_REORDER_ENA | NUM_CLIP_SEQ(3));
 717
 718         udelay(50);
 719 }
 720
 721 /*
 722  * GART
 723  */
 724 void cayman_pcie_gart_tlb_flush(struct radeon_device *rdev)
 725 {
 726         /* flush hdp cache */
 727         WREG32(HDP_MEM_COHERENCY_FLUSH_CNTL, 0x1);
 728
 729         /* bits 0-7 are the VM contexts0-7 */
 730         WREG32(VM_INVALIDATE_REQUEST, 1);
 731 }
 732
 733 static int cayman_pcie_gart_enable(struct radeon_device *rdev)
 734 {
 735         int i, r;
 736
 737         if (rdev->gart.robj == NULL) {
 738                 dev_err(rdev->dev, "No VRAM object for PCIE GART.\n");
 739                 return -EINVAL;
 740         }
 741         r = radeon_gart_table_vram_pin(rdev);
 742         if (r)
 743                 return r;
 744         radeon_gart_restore(rdev);
 745         /* Setup TLB control */
 746         WREG32(MC_VM_MX_L1_TLB_CNTL,
 747                (0xA << 7) |
 748                ENABLE_L1_TLB |
 749                ENABLE_L1_FRAGMENT_PROCESSING |
 750                SYSTEM_ACCESS_MODE_NOT_IN_SYS |
 751                ENABLE_ADVANCED_DRIVER_MODEL |
 752                SYSTEM_APERTURE_UNMAPPED_ACCESS_PASS_THRU);
 753         /* Setup L2 cache */
 754         WREG32(VM_L2_CNTL, ENABLE_L2_CACHE |
 755                ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE |
 756                ENABLE_L2_PDE0_CACHE_LRU_UPDATE_BY_WRITE |
 757                EFFECTIVE_L2_QUEUE_SIZE(7) |
 758                CONTEXT1_IDENTITY_ACCESS_MODE(1));
 759         WREG32(VM_L2_CNTL2, INVALIDATE_ALL_L1_TLBS | INVALIDATE_L2_CACHE);
 760         WREG32(VM_L2_CNTL3, L2_CACHE_BIGK_ASSOCIATIVITY |
 761                L2_CACHE_BIGK_FRAGMENT_SIZE(6));
 762         /* setup context0 */
 763         WREG32(VM_CONTEXT0_PAGE_TABLE_START_ADDR, rdev->mc.gtt_start >> 12);
 764         WREG32(VM_CONTEXT0_PAGE_TABLE_END_ADDR, rdev->mc.gtt_end >> 12);
 765         WREG32(VM_CONTEXT0_PAGE_TABLE_BASE_ADDR, rdev->gart.table_addr >> 12);
 766         WREG32(VM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR,
 767                         (u32)(rdev->dummy_page.addr >> 12));
 768         WREG32(VM_CONTEXT0_CNTL2, 0);
 769         WREG32(VM_CONTEXT0_CNTL, ENABLE_CONTEXT | PAGE_TABLE_DEPTH(0) |
 770                                 RANGE_PROTECTION_FAULT_ENABLE_DEFAULT);
 771
 772         WREG32(0x15D4, 0);
 773         WREG32(0x15D8, 0);
 774         WREG32(0x15DC, 0);
 775
 776         /* empty context1-7 */
 777         /* Assign the pt base to something valid for now; the pts used for
 778          * the VMs are determined by the application and setup and assigned
 779          * on the fly in the vm part of radeon_gart.c
 780          */
 781         for (i = 1; i < 8; i++) {
 782                 WREG32(VM_CONTEXT0_PAGE_TABLE_START_ADDR + (i << 2), 0);
 783                 WREG32(VM_CONTEXT0_PAGE_TABLE_END_ADDR + (i << 2), rdev->vm_manager.max_pfn);
 784                 WREG32(VM_CONTEXT0_PAGE_TABLE_BASE_ADDR + (i << 2),
 785                         rdev->gart.table_addr >> 12);
 786         }
 787
 788         /* enable context1-7 */
 789         WREG32(VM_CONTEXT1_PROTECTION_FAULT_DEFAULT_ADDR,
 790                (u32)(rdev->dummy_page.addr >> 12));
 791         WREG32(VM_CONTEXT1_CNTL2, 4);
 792         WREG32(VM_CONTEXT1_CNTL, ENABLE_CONTEXT | PAGE_TABLE_DEPTH(1) |
 793                                 RANGE_PROTECTION_FAULT_ENABLE_INTERRUPT |
 794                                 RANGE_PROTECTION_FAULT_ENABLE_DEFAULT |
 795                                 DUMMY_PAGE_PROTECTION_FAULT_ENABLE_INTERRUPT |
 796                                 DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT |
 797                                 PDE0_PROTECTION_FAULT_ENABLE_INTERRUPT |
 798                                 PDE0_PROTECTION_FAULT_ENABLE_DEFAULT |
 799                                 VALID_PROTECTION_FAULT_ENABLE_INTERRUPT |
 800                                 VALID_PROTECTION_FAULT_ENABLE_DEFAULT |
 801                                 READ_PROTECTION_FAULT_ENABLE_INTERRUPT |
 802                                 READ_PROTECTION_FAULT_ENABLE_DEFAULT |
 803                                 WRITE_PROTECTION_FAULT_ENABLE_INTERRUPT |
 804                                 WRITE_PROTECTION_FAULT_ENABLE_DEFAULT);
 805
 806         cayman_pcie_gart_tlb_flush(rdev);
 807         DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n",
 808                  (unsigned)(rdev->mc.gtt_size >> 20),
 809                  (unsigned long long)rdev->gart.table_addr);
 810         rdev->gart.ready = true;
 811         return 0;
 812 }
 813
 814 static void cayman_pcie_gart_disable(struct radeon_device *rdev)
 815 {
 816         /* Disable all tables */
 817         WREG32(VM_CONTEXT0_CNTL, 0);
 818         WREG32(VM_CONTEXT1_CNTL, 0);
 819         /* Setup TLB control */
 820         WREG32(MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_FRAGMENT_PROCESSING |
 821                SYSTEM_ACCESS_MODE_NOT_IN_SYS |
 822                SYSTEM_APERTURE_UNMAPPED_ACCESS_PASS_THRU);
 823         /* Setup L2 cache */
 824         WREG32(VM_L2_CNTL, ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE |
 825                ENABLE_L2_PDE0_CACHE_LRU_UPDATE_BY_WRITE |
 826                EFFECTIVE_L2_QUEUE_SIZE(7) |
 827                CONTEXT1_IDENTITY_ACCESS_MODE(1));
 828         WREG32(VM_L2_CNTL2, 0);
 829         WREG32(VM_L2_CNTL3, L2_CACHE_BIGK_ASSOCIATIVITY |
 830                L2_CACHE_BIGK_FRAGMENT_SIZE(6));
 831         radeon_gart_table_vram_unpin(rdev);
 832 }
 833
 834 static void cayman_pcie_gart_fini(struct radeon_device *rdev)
 835 {
 836         cayman_pcie_gart_disable(rdev);
 837         radeon_gart_table_vram_free(rdev);
 838         radeon_gart_fini(rdev);
 839 }
 840
 841 void cayman_cp_int_cntl_setup(struct radeon_device *rdev,
 842                               int ring, u32 cp_int_cntl)
 843 {
 844         u32 srbm_gfx_cntl = RREG32(SRBM_GFX_CNTL) & ~3;
 845
 846         WREG32(SRBM_GFX_CNTL, srbm_gfx_cntl | (ring & 3));
 847         WREG32(CP_INT_CNTL, cp_int_cntl);
 848 }
 849
 850 /*
 851  * CP.
 852  */
 853 void cayman_fence_ring_emit(struct radeon_device *rdev,
 854                             struct radeon_fence *fence)
 855 {
 856         struct radeon_ring *ring = &rdev->ring[fence->ring];
 857         u64 addr = rdev->fence_drv[fence->ring].gpu_addr;
 858
 859         /* flush read cache over gart for this vmid */
 860         radeon_ring_write(ring, PACKET3(PACKET3_SET_CONFIG_REG, 1));
 861         radeon_ring_write(ring, (CP_COHER_CNTL2 - PACKET3_SET_CONFIG_REG_START) >> 2);
 862         radeon_ring_write(ring, 0);
 863         radeon_ring_write(ring, PACKET3(PACKET3_SURFACE_SYNC, 3));
 864         radeon_ring_write(ring, PACKET3_TC_ACTION_ENA | PACKET3_SH_ACTION_ENA);
 865         radeon_ring_write(ring, 0xFFFFFFFF);
 866         radeon_ring_write(ring, 0);
 867         radeon_ring_write(ring, 10); /* poll interval */
 868         /* EVENT_WRITE_EOP - flush caches, send int */
 869         radeon_ring_write(ring, PACKET3(PACKET3_EVENT_WRITE_EOP, 4));
 870         radeon_ring_write(ring, EVENT_TYPE(CACHE_FLUSH_AND_INV_EVENT_TS) | EVENT_INDEX(5));
 871         radeon_ring_write(ring, addr & 0xffffffff);
 872         radeon_ring_write(ring, (upper_32_bits(addr) & 0xff) | DATA_SEL(1) | INT_SEL(2));
 873         radeon_ring_write(ring, fence->seq);
 874         radeon_ring_write(ring, 0);
 875 }
 876
 877 void cayman_ring_ib_execute(struct radeon_device *rdev, struct radeon_ib *ib)
 878 {
 879         struct radeon_ring *ring = &rdev->ring[ib->ring];
 880
 881         /* set to DX10/11 mode */
 882         radeon_ring_write(ring, PACKET3(PACKET3_MODE_CONTROL, 0));
 883         radeon_ring_write(ring, 1);
 884
 885         if (ring->rptr_save_reg) {
 886                 uint32_t next_rptr = ring->wptr + 3 + 4 + 8;
 887                 radeon_ring_write(ring, PACKET3(PACKET3_SET_CONFIG_REG, 1));
 888                 radeon_ring_write(ring, ((ring->rptr_save_reg -
 889                                           PACKET3_SET_CONFIG_REG_START) >> 2));
 890                 radeon_ring_write(ring, next_rptr);
 891         }
 892
 893         radeon_ring_write(ring, PACKET3(PACKET3_INDIRECT_BUFFER, 2));
 894         radeon_ring_write(ring,
 895 #ifdef __BIG_ENDIAN
 896                           (2 << 0) |
 897 #endif
 898                           (ib->gpu_addr & 0xFFFFFFFC));
 899         radeon_ring_write(ring, upper_32_bits(ib->gpu_addr) & 0xFF);
 900         radeon_ring_write(ring, ib->length_dw |
 901                           (ib->vm ? (ib->vm->id << 24) : 0));
 902
 903         /* flush read cache over gart for this vmid */
 904         radeon_ring_write(ring, PACKET3(PACKET3_SET_CONFIG_REG, 1));
 905         radeon_ring_write(ring, (CP_COHER_CNTL2 - PACKET3_SET_CONFIG_REG_START) >> 2);
 906         radeon_ring_write(ring, ib->vm ? ib->vm->id : 0);
 907         radeon_ring_write(ring, PACKET3(PACKET3_SURFACE_SYNC, 3));
 908         radeon_ring_write(ring, PACKET3_TC_ACTION_ENA | PACKET3_SH_ACTION_ENA);
 909         radeon_ring_write(ring, 0xFFFFFFFF);
 910         radeon_ring_write(ring, 0);
 911         radeon_ring_write(ring, 10); /* poll interval */
 912 }
 913
 914 static void cayman_cp_enable(struct radeon_device *rdev, bool enable)
 915 {
 916         if (enable)
 917                 WREG32(CP_ME_CNTL, 0);
 918         else {
 919                 radeon_ttm_set_active_vram_size(rdev, rdev->mc.visible_vram_size);
 920                 WREG32(CP_ME_CNTL, (CP_ME_HALT | CP_PFP_HALT));
 921                 WREG32(SCRATCH_UMSK, 0);
 922                 rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ready = false;
 923         }
 924 }
 925
 926 static int cayman_cp_load_microcode(struct radeon_device *rdev)
 927 {
 928         const __be32 *fw_data;
 929         int i;
 930
 931         if (!rdev->me_fw || !rdev->pfp_fw)
 932                 return -EINVAL;
 933
 934         cayman_cp_enable(rdev, false);
 935
 936         fw_data = (const __be32 *)rdev->pfp_fw->data;
 937         WREG32(CP_PFP_UCODE_ADDR, 0);
 938         for (i = 0; i < CAYMAN_PFP_UCODE_SIZE; i++)
 939                 WREG32(CP_PFP_UCODE_DATA, be32_to_cpup(fw_data++));
 940         WREG32(CP_PFP_UCODE_ADDR, 0);
 941
 942         fw_data = (const __be32 *)rdev->me_fw->data;
 943         WREG32(CP_ME_RAM_WADDR, 0);
 944         for (i = 0; i < CAYMAN_PM4_UCODE_SIZE; i++)
 945                 WREG32(CP_ME_RAM_DATA, be32_to_cpup(fw_data++));
 946
 947         WREG32(CP_PFP_UCODE_ADDR, 0);
 948         WREG32(CP_ME_RAM_WADDR, 0);
 949         WREG32(CP_ME_RAM_RADDR, 0);
 950         return 0;
 951 }
 952
 953 static int cayman_cp_start(struct radeon_device *rdev)
 954 {
 955         struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
 956         int r, i;
 957
 958         r = radeon_ring_lock(rdev, ring, 7);
 959         if (r) {
 960                 DRM_ERROR("radeon: cp failed to lock ring (%d).\n", r);
 961                 return r;
 962         }
 963         radeon_ring_write(ring, PACKET3(PACKET3_ME_INITIALIZE, 5));
 964         radeon_ring_write(ring, 0x1);
 965         radeon_ring_write(ring, 0x0);
 966         radeon_ring_write(ring, rdev->config.cayman.max_hw_contexts - 1);
 967         radeon_ring_write(ring, PACKET3_ME_INITIALIZE_DEVICE_ID(1));
 968         radeon_ring_write(ring, 0);
 969         radeon_ring_write(ring, 0);
 970         radeon_ring_unlock_commit(rdev, ring);
 971
 972         cayman_cp_enable(rdev, true);
 973
 974         r = radeon_ring_lock(rdev, ring, cayman_default_size + 19);
 975         if (r) {
 976                 DRM_ERROR("radeon: cp failed to lock ring (%d).\n", r);
 977                 return r;
 978         }
 979
 980         /* setup clear context state */
 981         radeon_ring_write(ring, PACKET3(PACKET3_PREAMBLE_CNTL, 0));
 982         radeon_ring_write(ring, PACKET3_PREAMBLE_BEGIN_CLEAR_STATE);
 983
 984         for (i = 0; i < cayman_default_size; i++)
 985                 radeon_ring_write(ring, cayman_default_state[i]);
 986
 987         radeon_ring_write(ring, PACKET3(PACKET3_PREAMBLE_CNTL, 0));
 988         radeon_ring_write(ring, PACKET3_PREAMBLE_END_CLEAR_STATE);
 989
 990         /* set clear context state */
 991         radeon_ring_write(ring, PACKET3(PACKET3_CLEAR_STATE, 0));
 992         radeon_ring_write(ring, 0);
 993
 994         /* SQ_VTX_BASE_VTX_LOC */
 995         radeon_ring_write(ring, 0xc0026f00);
 996         radeon_ring_write(ring, 0x00000000);
 997         radeon_ring_write(ring, 0x00000000);
 998         radeon_ring_write(ring, 0x00000000);
 999
1000         /* Clear consts */
1001         radeon_ring_write(ring, 0xc0036f00);
1002         radeon_ring_write(ring, 0x00000bc4);
1003         radeon_ring_write(ring, 0xffffffff);
1004         radeon_ring_write(ring, 0xffffffff);
1005         radeon_ring_write(ring, 0xffffffff);
1006
1007         radeon_ring_write(ring, 0xc0026900);
1008         radeon_ring_write(ring, 0x00000316);
1009         radeon_ring_write(ring, 0x0000000e); /* VGT_VERTEX_REUSE_BLOCK_CNTL */
1010         radeon_ring_write(ring, 0x00000010); /*  */
1011
1012         radeon_ring_unlock_commit(rdev, ring);
1013
1014         /* XXX init other rings */
1015
1016         return 0;
1017 }
1018
1019 static void cayman_cp_fini(struct radeon_device *rdev)
1020 {
1021         struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
1022         cayman_cp_enable(rdev, false);
1023         radeon_ring_fini(rdev, ring);
1024         radeon_scratch_free(rdev, ring->rptr_save_reg);
1025 }
1026
1027 static int cayman_cp_resume(struct radeon_device *rdev)
1028 {
1029         static const int ridx[] = {
1030                 RADEON_RING_TYPE_GFX_INDEX,
1031                 CAYMAN_RING_TYPE_CP1_INDEX,
1032                 CAYMAN_RING_TYPE_CP2_INDEX
1033         };
1034         static const unsigned cp_rb_cntl[] = {
1035                 CP_RB0_CNTL,
1036                 CP_RB1_CNTL,
1037                 CP_RB2_CNTL,
1038         };
1039         static const unsigned cp_rb_rptr_addr[] = {
1040                 CP_RB0_RPTR_ADDR,
1041                 CP_RB1_RPTR_ADDR,
1042                 CP_RB2_RPTR_ADDR
1043         };
1044         static const unsigned cp_rb_rptr_addr_hi[] = {
1045                 CP_RB0_RPTR_ADDR_HI,
1046                 CP_RB1_RPTR_ADDR_HI,
1047                 CP_RB2_RPTR_ADDR_HI
1048         };
1049         static const unsigned cp_rb_base[] = {
1050                 CP_RB0_BASE,
1051                 CP_RB1_BASE,
1052                 CP_RB2_BASE
1053         };
1054         struct radeon_ring *ring;
1055         int i, r;
1056
1057         /* Reset cp; if cp is reset, then PA, SH, VGT also need to be reset */
1058         WREG32(GRBM_SOFT_RESET, (SOFT_RESET_CP |
1059                                  SOFT_RESET_PA |
1060                                  SOFT_RESET_SH |
1061                                  SOFT_RESET_VGT |
1062                                  SOFT_RESET_SPI |
1063                                  SOFT_RESET_SX));
1064         RREG32(GRBM_SOFT_RESET);
1065         mdelay(15);
1066         WREG32(GRBM_SOFT_RESET, 0);
1067         RREG32(GRBM_SOFT_RESET);
1068
1069         WREG32(CP_SEM_WAIT_TIMER, 0x0);
1070         WREG32(CP_SEM_INCOMPLETE_TIMER_CNTL, 0x0);
1071
1072         /* Set the write pointer delay */
1073         WREG32(CP_RB_WPTR_DELAY, 0);
1074
1075         WREG32(CP_DEBUG, (1 << 27));
1076
1077         /* set the wb address whether it's enabled or not */
1078         WREG32(SCRATCH_ADDR, ((rdev->wb.gpu_addr + RADEON_WB_SCRATCH_OFFSET) >> 8) & 0xFFFFFFFF);
1079         WREG32(SCRATCH_UMSK, 0xff);
1080
1081         for (i = 0; i < 3; ++i) {
1082                 uint32_t rb_cntl;
1083                 uint64_t addr;
1084
1085                 /* Set ring buffer size */
1086                 ring = &rdev->ring[ridx[i]];
1087                 rb_cntl = drm_order(ring->ring_size / 8);
1088                 rb_cntl |= drm_order(RADEON_GPU_PAGE_SIZE/8) << 8;
1089 #ifdef __BIG_ENDIAN
1090                 rb_cntl |= BUF_SWAP_32BIT;
1091 #endif
1092                 WREG32(cp_rb_cntl[i], rb_cntl);
1093
1094                 /* set the wb address whether it's enabled or not */
1095                 addr = rdev->wb.gpu_addr + RADEON_WB_CP_RPTR_OFFSET;
1096                 WREG32(cp_rb_rptr_addr[i], addr & 0xFFFFFFFC);
1097                 WREG32(cp_rb_rptr_addr_hi[i], upper_32_bits(addr) & 0xFF);
1098         }
1099
1100         /* set the rb base addr, this causes an internal reset of ALL rings */
1101         for (i = 0; i < 3; ++i) {
1102                 ring = &rdev->ring[ridx[i]];
1103                 WREG32(cp_rb_base[i], ring->gpu_addr >> 8);
1104         }
1105
1106         for (i = 0; i < 3; ++i) {
1107                 /* Initialize the ring buffer's read and write pointers */
1108                 ring = &rdev->ring[ridx[i]];
1109                 WREG32_P(cp_rb_cntl[i], RB_RPTR_WR_ENA, ~RB_RPTR_WR_ENA);
1110
1111                 ring->rptr = ring->wptr = 0;
1112                 WREG32(ring->rptr_reg, ring->rptr);
1113                 WREG32(ring->wptr_reg, ring->wptr);
1114
1115                 mdelay(1);
1116                 WREG32_P(cp_rb_cntl[i], 0, ~RB_RPTR_WR_ENA);
1117         }
1118
1119         /* start the rings */
1120         cayman_cp_start(rdev);
1121         rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ready = true;
1122         rdev->ring[CAYMAN_RING_TYPE_CP1_INDEX].ready = false;
1123         rdev->ring[CAYMAN_RING_TYPE_CP2_INDEX].ready = false;
1124         /* this only test cp0 */
1125         r = radeon_ring_test(rdev, RADEON_RING_TYPE_GFX_INDEX, &rdev->ring[RADEON_RING_TYPE_GFX_INDEX]);
1126         if (r) {
1127                 rdev->ring[RADEON_RING_TYPE_GFX_INDEX].ready = false;
1128                 rdev->ring[CAYMAN_RING_TYPE_CP1_INDEX].ready = false;
1129                 rdev->ring[CAYMAN_RING_TYPE_CP2_INDEX].ready = false;
1130                 return r;
1131         }
1132
1133         return 0;
1134 }
1135
1136 /*
1137  * DMA
1138  * Starting with R600, the GPU has an asynchronous
1139  * DMA engine.  The programming model is very similar
1140  * to the 3D engine (ring buffer, IBs, etc.), but the
1141  * DMA controller has it's own packet format that is
1142  * different form the PM4 format used by the 3D engine.
1143  * It supports copying data, writing embedded data,
1144  * solid fills, and a number of other things.  It also
1145  * has support for tiling/detiling of buffers.
1146  * Cayman and newer support two asynchronous DMA engines.
1147  */
1148 /**
1149  * cayman_dma_ring_ib_execute - Schedule an IB on the DMA engine
1150  *
1151  * @rdev: radeon_device pointer
1152  * @ib: IB object to schedule
1153  *
1154  * Schedule an IB in the DMA ring (cayman-SI).
1155  */
1156 void cayman_dma_ring_ib_execute(struct radeon_device *rdev,
1157                                 struct radeon_ib *ib)
1158 {
1159         struct radeon_ring *ring = &rdev->ring[ib->ring];
1160
1161         if (rdev->wb.enabled) {
1162                 u32 next_rptr = ring->wptr + 4;
1163                 while ((next_rptr & 7) != 5)
1164                         next_rptr++;
1165                 next_rptr += 3;
1166                 radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_WRITE, 0, 0, 1));
1167                 radeon_ring_write(ring, ring->next_rptr_gpu_addr & 0xfffffffc);
1168                 radeon_ring_write(ring, upper_32_bits(ring->next_rptr_gpu_addr) & 0xff);
1169                 radeon_ring_write(ring, next_rptr);
1170         }
1171
1172         /* The indirect buffer packet must end on an 8 DW boundary in the DMA ring.
1173          * Pad as necessary with NOPs.
1174          */
1175         while ((ring->wptr & 7) != 5)
1176                 radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_NOP, 0, 0, 0));
1177         radeon_ring_write(ring, DMA_IB_PACKET(DMA_PACKET_INDIRECT_BUFFER, ib->vm ? ib->vm->id : 0, 0));
1178         radeon_ring_write(ring, (ib->gpu_addr & 0xFFFFFFE0));
1179         radeon_ring_write(ring, (ib->length_dw << 12) | (upper_32_bits(ib->gpu_addr) & 0xFF));
1180
1181 }
1182
1183 /**
1184  * cayman_dma_stop - stop the async dma engines
1185  *
1186  * @rdev: radeon_device pointer
1187  *
1188  * Stop the async dma engines (cayman-SI).
1189  */
1190 void cayman_dma_stop(struct radeon_device *rdev)
1191 {
1192         u32 rb_cntl;
1193
1194         radeon_ttm_set_active_vram_size(rdev, rdev->mc.visible_vram_size);
1195
1196         /* dma0 */
1197         rb_cntl = RREG32(DMA_RB_CNTL + DMA0_REGISTER_OFFSET);
1198         rb_cntl &= ~DMA_RB_ENABLE;
1199         WREG32(DMA_RB_CNTL + DMA0_REGISTER_OFFSET, rb_cntl);
1200
1201         /* dma1 */
1202         rb_cntl = RREG32(DMA_RB_CNTL + DMA1_REGISTER_OFFSET);
1203         rb_cntl &= ~DMA_RB_ENABLE;
1204         WREG32(DMA_RB_CNTL + DMA1_REGISTER_OFFSET, rb_cntl);
1205
1206         rdev->ring[R600_RING_TYPE_DMA_INDEX].ready = false;
1207         rdev->ring[CAYMAN_RING_TYPE_DMA1_INDEX].ready = false;
1208 }
1209
1210 /**
1211  * cayman_dma_resume - setup and start the async dma engines
1212  *
1213  * @rdev: radeon_device pointer
1214  *
1215  * Set up the DMA ring buffers and enable them. (cayman-SI).
1216  * Returns 0 for success, error for failure.
1217  */
1218 int cayman_dma_resume(struct radeon_device *rdev)
1219 {
1220         struct radeon_ring *ring;
1221         u32 rb_cntl, dma_cntl, ib_cntl;
1222         u32 rb_bufsz;
1223         u32 reg_offset, wb_offset;
1224         int i, r;
1225
1226         /* Reset dma */
1227         WREG32(SRBM_SOFT_RESET, SOFT_RESET_DMA | SOFT_RESET_DMA1);
1228         RREG32(SRBM_SOFT_RESET);
1229         udelay(50);
1230         WREG32(SRBM_SOFT_RESET, 0);
1231
1232         for (i = 0; i < 2; i++) {
1233                 if (i == 0) {
1234                         ring = &rdev->ring[R600_RING_TYPE_DMA_INDEX];
1235                         reg_offset = DMA0_REGISTER_OFFSET;
1236                         wb_offset = R600_WB_DMA_RPTR_OFFSET;
1237                 } else {
1238                         ring = &rdev->ring[CAYMAN_RING_TYPE_DMA1_INDEX];
1239                         reg_offset = DMA1_REGISTER_OFFSET;
1240                         wb_offset = CAYMAN_WB_DMA1_RPTR_OFFSET;
1241                 }
1242
1243                 WREG32(DMA_SEM_INCOMPLETE_TIMER_CNTL + reg_offset, 0);
1244                 WREG32(DMA_SEM_WAIT_FAIL_TIMER_CNTL + reg_offset, 0);
1245
1246                 /* Set ring buffer size in dwords */
1247                 rb_bufsz = drm_order(ring->ring_size / 4);
1248                 rb_cntl = rb_bufsz << 1;
1249 #ifdef __BIG_ENDIAN
1250                 rb_cntl |= DMA_RB_SWAP_ENABLE | DMA_RPTR_WRITEBACK_SWAP_ENABLE;
1251 #endif
1252                 WREG32(DMA_RB_CNTL + reg_offset, rb_cntl);
1253
1254                 /* Initialize the ring buffer's read and write pointers */
1255                 WREG32(DMA_RB_RPTR + reg_offset, 0);
1256                 WREG32(DMA_RB_WPTR + reg_offset, 0);
1257
1258                 /* set the wb address whether it's enabled or not */
1259                 WREG32(DMA_RB_RPTR_ADDR_HI + reg_offset,
1260                        upper_32_bits(rdev->wb.gpu_addr + wb_offset) & 0xFF);
1261                 WREG32(DMA_RB_RPTR_ADDR_LO + reg_offset,
1262                        ((rdev->wb.gpu_addr + wb_offset) & 0xFFFFFFFC));
1263
1264                 if (rdev->wb.enabled)
1265                         rb_cntl |= DMA_RPTR_WRITEBACK_ENABLE;
1266
1267                 WREG32(DMA_RB_BASE + reg_offset, ring->gpu_addr >> 8);
1268
1269                 /* enable DMA IBs */
1270                 ib_cntl = DMA_IB_ENABLE | CMD_VMID_FORCE;
1271 #ifdef __BIG_ENDIAN
1272                 ib_cntl |= DMA_IB_SWAP_ENABLE;
1273 #endif
1274                 WREG32(DMA_IB_CNTL + reg_offset, ib_cntl);
1275
1276                 dma_cntl = RREG32(DMA_CNTL + reg_offset);
1277                 dma_cntl &= ~CTXEMPTY_INT_ENABLE;
1278                 WREG32(DMA_CNTL + reg_offset, dma_cntl);
1279
1280                 ring->wptr = 0;
1281                 WREG32(DMA_RB_WPTR + reg_offset, ring->wptr << 2);
1282
1283                 ring->rptr = RREG32(DMA_RB_RPTR + reg_offset) >> 2;
1284
1285                 WREG32(DMA_RB_CNTL + reg_offset, rb_cntl | DMA_RB_ENABLE);
1286
1287                 ring->ready = true;
1288
1289                 r = radeon_ring_test(rdev, ring->idx, ring);
1290                 if (r) {
1291                         ring->ready = false;
1292                         return r;
1293                 }
1294         }
1295
1296         radeon_ttm_set_active_vram_size(rdev, rdev->mc.real_vram_size);
1297
1298         return 0;
1299 }
1300
1301 /**
1302  * cayman_dma_fini - tear down the async dma engines
1303  *
1304  * @rdev: radeon_device pointer
1305  *
1306  * Stop the async dma engines and free the rings (cayman-SI).
1307  */
1308 void cayman_dma_fini(struct radeon_device *rdev)
1309 {
1310         cayman_dma_stop(rdev);
1311         radeon_ring_fini(rdev, &rdev->ring[R600_RING_TYPE_DMA_INDEX]);
1312         radeon_ring_fini(rdev, &rdev->ring[CAYMAN_RING_TYPE_DMA1_INDEX]);
1313 }
1314
1315 static u32 cayman_gpu_check_soft_reset(struct radeon_device *rdev)
1316 {
1317         u32 reset_mask = 0;
1318         u32 tmp;
1319
1320         /* GRBM_STATUS */
1321         tmp = RREG32(GRBM_STATUS);
1322         if (tmp & (PA_BUSY | SC_BUSY |
1323                    SH_BUSY | SX_BUSY |
1324                    TA_BUSY | VGT_BUSY |
1325                    DB_BUSY | CB_BUSY |
1326                    GDS_BUSY | SPI_BUSY |
1327                    IA_BUSY | IA_BUSY_NO_DMA))
1328                 reset_mask |= RADEON_RESET_GFX;
1329
1330         if (tmp & (CF_RQ_PENDING | PF_RQ_PENDING |
1331                    CP_BUSY | CP_COHERENCY_BUSY))
1332                 reset_mask |= RADEON_RESET_CP;
1333
1334         if (tmp & GRBM_EE_BUSY)
1335                 reset_mask |= RADEON_RESET_GRBM | RADEON_RESET_GFX | RADEON_RESET_CP;
1336
1337         /* DMA_STATUS_REG 0 */
1338         tmp = RREG32(DMA_STATUS_REG + DMA0_REGISTER_OFFSET);
1339         if (!(tmp & DMA_IDLE))
1340                 reset_mask |= RADEON_RESET_DMA;
1341
1342         /* DMA_STATUS_REG 1 */
1343         tmp = RREG32(DMA_STATUS_REG + DMA1_REGISTER_OFFSET);
1344         if (!(tmp & DMA_IDLE))
1345                 reset_mask |= RADEON_RESET_DMA1;
1346
1347         /* SRBM_STATUS2 */
1348         tmp = RREG32(SRBM_STATUS2);
1349         if (tmp & DMA_BUSY)
1350                 reset_mask |= RADEON_RESET_DMA;
1351
1352         if (tmp & DMA1_BUSY)
1353                 reset_mask |= RADEON_RESET_DMA1;
1354
1355         /* SRBM_STATUS */
1356         tmp = RREG32(SRBM_STATUS);
1357         if (tmp & (RLC_RQ_PENDING | RLC_BUSY))
1358                 reset_mask |= RADEON_RESET_RLC;
1359
1360         if (tmp & IH_BUSY)
1361                 reset_mask |= RADEON_RESET_IH;
1362
1363         if (tmp & SEM_BUSY)
1364                 reset_mask |= RADEON_RESET_SEM;
1365
1366         if (tmp & GRBM_RQ_PENDING)
1367                 reset_mask |= RADEON_RESET_GRBM;
1368
1369         if (tmp & VMC_BUSY)
1370                 reset_mask |= RADEON_RESET_VMC;
1371
1372         if (tmp & (MCB_BUSY | MCB_NON_DISPLAY_BUSY |
1373                    MCC_BUSY | MCD_BUSY))
1374                 reset_mask |= RADEON_RESET_MC;
1375
1376         if (evergreen_is_display_hung(rdev))
1377                 reset_mask |= RADEON_RESET_DISPLAY;
1378
1379         /* VM_L2_STATUS */
1380         tmp = RREG32(VM_L2_STATUS);
1381         if (tmp & L2_BUSY)
1382                 reset_mask |= RADEON_RESET_VMC;
1383
1384         return reset_mask;
1385 }
1386
1387 static void cayman_gpu_soft_reset(struct radeon_device *rdev, u32 reset_mask)
1388 {
1389         struct evergreen_mc_save save;
1390         u32 grbm_soft_reset = 0, srbm_soft_reset = 0;
1391         u32 tmp;
1392
1393         if (reset_mask == 0)
1394                 return;
1395
1396         dev_info(rdev->dev, "GPU softreset: 0x%08X\n", reset_mask);
1397
1398         evergreen_print_gpu_status_regs(rdev);
1399         dev_info(rdev->dev, "  VM_CONTEXT0_PROTECTION_FAULT_ADDR   0x%08X\n",
1400                  RREG32(0x14F8));
1401         dev_info(rdev->dev, "  VM_CONTEXT0_PROTECTION_FAULT_STATUS 0x%08X\n",
1402                  RREG32(0x14D8));
1403         dev_info(rdev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_ADDR   0x%08X\n",
1404                  RREG32(0x14FC));
1405         dev_info(rdev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n",
1406                  RREG32(0x14DC));
1407
1408         /* Disable CP parsing/prefetching */
1409         WREG32(CP_ME_CNTL, CP_ME_HALT | CP_PFP_HALT);
1410
1411         if (reset_mask & RADEON_RESET_DMA) {
1412                 /* dma0 */
1413                 tmp = RREG32(DMA_RB_CNTL + DMA0_REGISTER_OFFSET);
1414                 tmp &= ~DMA_RB_ENABLE;
1415                 WREG32(DMA_RB_CNTL + DMA0_REGISTER_OFFSET, tmp);
1416         }
1417
1418         if (reset_mask & RADEON_RESET_DMA1) {
1419                 /* dma1 */
1420                 tmp = RREG32(DMA_RB_CNTL + DMA1_REGISTER_OFFSET);
1421                 tmp &= ~DMA_RB_ENABLE;
1422                 WREG32(DMA_RB_CNTL + DMA1_REGISTER_OFFSET, tmp);
1423         }
1424
1425         udelay(50);
1426
1427         evergreen_mc_stop(rdev, &save);
1428         if (evergreen_mc_wait_for_idle(rdev)) {
1429                 dev_warn(rdev->dev, "Wait for MC idle timedout !\n");
1430         }
1431
1432         if (reset_mask & (RADEON_RESET_GFX | RADEON_RESET_COMPUTE)) {
1433                 grbm_soft_reset = SOFT_RESET_CB |
1434                         SOFT_RESET_DB |
1435                         SOFT_RESET_GDS |
1436                         SOFT_RESET_PA |
1437                         SOFT_RESET_SC |
1438                         SOFT_RESET_SPI |
1439                         SOFT_RESET_SH |
1440                         SOFT_RESET_SX |
1441                         SOFT_RESET_TC |
1442                         SOFT_RESET_TA |
1443                         SOFT_RESET_VGT |
1444                         SOFT_RESET_IA;
1445         }
1446
1447         if (reset_mask & RADEON_RESET_CP) {
1448                 grbm_soft_reset |= SOFT_RESET_CP | SOFT_RESET_VGT;
1449
1450                 srbm_soft_reset |= SOFT_RESET_GRBM;
1451         }
1452
1453         if (reset_mask & RADEON_RESET_DMA)
1454                 srbm_soft_reset |= SOFT_RESET_DMA;
1455
1456         if (reset_mask & RADEON_RESET_DMA1)
1457                 srbm_soft_reset |= SOFT_RESET_DMA1;
1458
1459         if (reset_mask & RADEON_RESET_DISPLAY)
1460                 srbm_soft_reset |= SOFT_RESET_DC;
1461
1462         if (reset_mask & RADEON_RESET_RLC)
1463                 srbm_soft_reset |= SOFT_RESET_RLC;
1464
1465         if (reset_mask & RADEON_RESET_SEM)
1466                 srbm_soft_reset |= SOFT_RESET_SEM;
1467
1468         if (reset_mask & RADEON_RESET_IH)
1469                 srbm_soft_reset |= SOFT_RESET_IH;
1470
1471         if (reset_mask & RADEON_RESET_GRBM)
1472                 srbm_soft_reset |= SOFT_RESET_GRBM;
1473
1474         if (reset_mask & RADEON_RESET_VMC)
1475                 srbm_soft_reset |= SOFT_RESET_VMC;
1476
1477         if (reset_mask & RADEON_RESET_MC)
1478                 srbm_soft_reset |= SOFT_RESET_MC;
1479
1480         if (grbm_soft_reset) {
1481                 tmp = RREG32(GRBM_SOFT_RESET);
1482                 tmp |= grbm_soft_reset;
1483                 dev_info(rdev->dev, "GRBM_SOFT_RESET=0x%08X\n", tmp);
1484                 WREG32(GRBM_SOFT_RESET, tmp);
1485                 tmp = RREG32(GRBM_SOFT_RESET);
1486
1487                 udelay(50);
1488
1489                 tmp &= ~grbm_soft_reset;
1490                 WREG32(GRBM_SOFT_RESET, tmp);
1491                 tmp = RREG32(GRBM_SOFT_RESET);
1492         }
1493
1494         if (srbm_soft_reset) {
1495                 tmp = RREG32(SRBM_SOFT_RESET);
1496                 tmp |= srbm_soft_reset;
1497                 dev_info(rdev->dev, "SRBM_SOFT_RESET=0x%08X\n", tmp);
1498                 WREG32(SRBM_SOFT_RESET, tmp);
1499                 tmp = RREG32(SRBM_SOFT_RESET);
1500
1501                 udelay(50);
1502
1503                 tmp &= ~srbm_soft_reset;
1504                 WREG32(SRBM_SOFT_RESET, tmp);
1505                 tmp = RREG32(SRBM_SOFT_RESET);
1506         }
1507
1508         /* Wait a little for things to settle down */
1509         udelay(50);
1510
1511         evergreen_mc_resume(rdev, &save);
1512         udelay(50);
1513
1514         evergreen_print_gpu_status_regs(rdev);
1515 }
1516
1517 int cayman_asic_reset(struct radeon_device *rdev)
1518 {
1519         u32 reset_mask;
1520
1521         reset_mask = cayman_gpu_check_soft_reset(rdev);
1522
1523         if (reset_mask)
1524                 r600_set_bios_scratch_engine_hung(rdev, true);
1525
1526         cayman_gpu_soft_reset(rdev, reset_mask);
1527
1528         reset_mask = cayman_gpu_check_soft_reset(rdev);
1529
1530         if (!reset_mask)
1531                 r600_set_bios_scratch_engine_hung(rdev, false);
1532
1533         return 0;
1534 }
1535
1536 /**
1537  * cayman_gfx_is_lockup - Check if the GFX engine is locked up
1538  *
1539  * @rdev: radeon_device pointer
1540  * @ring: radeon_ring structure holding ring information
1541  *
1542  * Check if the GFX engine is locked up.
1543  * Returns true if the engine appears to be locked up, false if not.
1544  */
1545 bool cayman_gfx_is_lockup(struct radeon_device *rdev, struct radeon_ring *ring)
1546 {
1547         u32 reset_mask = cayman_gpu_check_soft_reset(rdev);
1548
1549         if (!(reset_mask & (RADEON_RESET_GFX |
1550                             RADEON_RESET_COMPUTE |
1551                             RADEON_RESET_CP))) {
1552                 radeon_ring_lockup_update(ring);
1553                 return false;
1554         }
1555         /* force CP activities */
1556         radeon_ring_force_activity(rdev, ring);
1557         return radeon_ring_test_lockup(rdev, ring);
1558 }
1559
1560 /**
1561  * cayman_dma_is_lockup - Check if the DMA engine is locked up
1562  *
1563  * @rdev: radeon_device pointer
1564  * @ring: radeon_ring structure holding ring information
1565  *
1566  * Check if the async DMA engine is locked up.
1567  * Returns true if the engine appears to be locked up, false if not.
1568  */
1569 bool cayman_dma_is_lockup(struct radeon_device *rdev, struct radeon_ring *ring)
1570 {
1571         u32 reset_mask = cayman_gpu_check_soft_reset(rdev);
1572         u32 mask;
1573
1574         if (ring->idx == R600_RING_TYPE_DMA_INDEX)
1575                 mask = RADEON_RESET_DMA;
1576         else
1577                 mask = RADEON_RESET_DMA1;
1578
1579         if (!(reset_mask & mask)) {
1580                 radeon_ring_lockup_update(ring);
1581                 return false;
1582         }
1583         /* force ring activities */
1584         radeon_ring_force_activity(rdev, ring);
1585         return radeon_ring_test_lockup(rdev, ring);
1586 }
1587
1588 static int cayman_startup(struct radeon_device *rdev)
1589 {
1590         struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
1591         int r;
1592
1593         /* enable pcie gen2 link */
1594         evergreen_pcie_gen2_enable(rdev);
1595
1596         if (rdev->flags & RADEON_IS_IGP) {
1597                 if (!rdev->me_fw || !rdev->pfp_fw || !rdev->rlc_fw) {
1598                         r = ni_init_microcode(rdev);
1599                         if (r) {
1600                                 DRM_ERROR("Failed to load firmware!\n");
1601                                 return r;
1602                         }
1603                 }
1604         } else {
1605                 if (!rdev->me_fw || !rdev->pfp_fw || !rdev->rlc_fw || !rdev->mc_fw) {
1606                         r = ni_init_microcode(rdev);
1607                         if (r) {
1608                                 DRM_ERROR("Failed to load firmware!\n");
1609                                 return r;
1610                         }
1611                 }
1612
1613                 r = ni_mc_load_microcode(rdev);
1614                 if (r) {
1615                         DRM_ERROR("Failed to load MC firmware!\n");
1616                         return r;
1617                 }
1618         }
1619
1620         r = r600_vram_scratch_init(rdev);
1621         if (r)
1622                 return r;
1623
1624         evergreen_mc_program(rdev);
1625         r = cayman_pcie_gart_enable(rdev);
1626         if (r)
1627                 return r;
1628         cayman_gpu_init(rdev);
1629
1630         r = evergreen_blit_init(rdev);
1631         if (r) {
1632                 r600_blit_fini(rdev);
1633                 rdev->asic->copy.copy = NULL;
1634                 dev_warn(rdev->dev, "failed blitter (%d) falling back to memcpy\n", r);
1635         }
1636
1637         /* allocate rlc buffers */
1638         if (rdev->flags & RADEON_IS_IGP) {
1639                 r = si_rlc_init(rdev);
1640                 if (r) {
1641                         DRM_ERROR("Failed to init rlc BOs!\n");
1642                         return r;
1643                 }
1644         }
1645
1646         /* allocate wb buffer */
1647         r = radeon_wb_init(rdev);
1648         if (r)
1649                 return r;
1650
1651         r = radeon_fence_driver_start_ring(rdev, RADEON_RING_TYPE_GFX_INDEX);
1652         if (r) {
1653                 dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r);
1654                 return r;
1655         }
1656
1657         r = radeon_fence_driver_start_ring(rdev, CAYMAN_RING_TYPE_CP1_INDEX);
1658         if (r) {
1659                 dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r);
1660                 return r;
1661         }
1662
1663         r = radeon_fence_driver_start_ring(rdev, CAYMAN_RING_TYPE_CP2_INDEX);
1664         if (r) {
1665                 dev_err(rdev->dev, "failed initializing CP fences (%d).\n", r);
1666                 return r;
1667         }
1668
1669         r = radeon_fence_driver_start_ring(rdev, R600_RING_TYPE_DMA_INDEX);
1670         if (r) {
1671                 dev_err(rdev->dev, "failed initializing DMA fences (%d).\n", r);
1672                 return r;
1673         }
1674
1675         r = radeon_fence_driver_start_ring(rdev, CAYMAN_RING_TYPE_DMA1_INDEX);
1676         if (r) {
1677                 dev_err(rdev->dev, "failed initializing DMA fences (%d).\n", r);
1678                 return r;
1679         }
1680
1681         /* Enable IRQ */
1682         r = r600_irq_init(rdev);
1683         if (r) {
1684                 DRM_ERROR("radeon: IH init failed (%d).\n", r);
1685                 radeon_irq_kms_fini(rdev);
1686                 return r;
1687         }
1688         evergreen_irq_set(rdev);
1689
1690         r = radeon_ring_init(rdev, ring, ring->ring_size, RADEON_WB_CP_RPTR_OFFSET,
1691                              CP_RB0_RPTR, CP_RB0_WPTR,
1692                              0, 0xfffff, RADEON_CP_PACKET2);
1693         if (r)
1694                 return r;
1695
1696         ring = &rdev->ring[R600_RING_TYPE_DMA_INDEX];
1697         r = radeon_ring_init(rdev, ring, ring->ring_size, R600_WB_DMA_RPTR_OFFSET,
1698                              DMA_RB_RPTR + DMA0_REGISTER_OFFSET,
1699                              DMA_RB_WPTR + DMA0_REGISTER_OFFSET,
1700                              2, 0x3fffc, DMA_PACKET(DMA_PACKET_NOP, 0, 0, 0));
1701         if (r)
1702                 return r;
1703
1704         ring = &rdev->ring[CAYMAN_RING_TYPE_DMA1_INDEX];
1705         r = radeon_ring_init(rdev, ring, ring->ring_size, CAYMAN_WB_DMA1_RPTR_OFFSET,
1706                              DMA_RB_RPTR + DMA1_REGISTER_OFFSET,
1707                              DMA_RB_WPTR + DMA1_REGISTER_OFFSET,
1708                              2, 0x3fffc, DMA_PACKET(DMA_PACKET_NOP, 0, 0, 0));
1709         if (r)
1710                 return r;
1711
1712         r = cayman_cp_load_microcode(rdev);
1713         if (r)
1714                 return r;
1715         r = cayman_cp_resume(rdev);
1716         if (r)
1717                 return r;
1718
1719         r = cayman_dma_resume(rdev);
1720         if (r)
1721                 return r;
1722
1723         r = radeon_ib_pool_init(rdev);
1724         if (r) {
1725                 dev_err(rdev->dev, "IB initialization failed (%d).\n", r);
1726                 return r;
1727         }
1728
1729         r = radeon_vm_manager_init(rdev);
1730         if (r) {
1731                 dev_err(rdev->dev, "vm manager initialization failed (%d).\n", r);
1732                 return r;
1733         }
1734
1735         r = r600_audio_init(rdev);
1736         if (r)
1737                 return r;
1738
1739         return 0;
1740 }
1741
1742 int cayman_resume(struct radeon_device *rdev)
1743 {
1744         int r;
1745
1746         /* Do not reset GPU before posting, on rv770 hw unlike on r500 hw,
1747          * posting will perform necessary task to bring back GPU into good
1748          * shape.
1749          */
1750         /* post card */
1751         atom_asic_init(rdev->mode_info.atom_context);
1752
1753         rdev->accel_working = true;
1754         r = cayman_startup(rdev);
1755         if (r) {
1756                 DRM_ERROR("cayman startup failed on resume\n");
1757                 rdev->accel_working = false;
1758                 return r;
1759         }
1760         return r;
1761 }
1762
1763 int cayman_suspend(struct radeon_device *rdev)
1764 {
1765         r600_audio_fini(rdev);
1766         cayman_cp_enable(rdev, false);
1767         cayman_dma_stop(rdev);
1768         evergreen_irq_suspend(rdev);
1769         radeon_wb_disable(rdev);
1770         cayman_pcie_gart_disable(rdev);
1771         return 0;
1772 }
1773
1774 /* Plan is to move initialization in that function and use
1775  * helper function so that radeon_device_init pretty much
1776  * do nothing more than calling asic specific function. This
1777  * should also allow to remove a bunch of callback function
1778  * like vram_info.
1779  */
1780 int cayman_init(struct radeon_device *rdev)
1781 {
1782         struct radeon_ring *ring = &rdev->ring[RADEON_RING_TYPE_GFX_INDEX];
1783         int r;
1784
1785         /* Read BIOS */
1786         if (!radeon_get_bios(rdev)) {
1787                 if (ASIC_IS_AVIVO(rdev))
1788                         return -EINVAL;
1789         }
1790         /* Must be an ATOMBIOS */
1791         if (!rdev->is_atom_bios) {
1792                 dev_err(rdev->dev, "Expecting atombios for cayman GPU\n");
1793                 return -EINVAL;
1794         }
1795         r = radeon_atombios_init(rdev);
1796         if (r)
1797                 return r;
1798
1799         /* Post card if necessary */
1800         if (!radeon_card_posted(rdev)) {
1801                 if (!rdev->bios) {
1802                         dev_err(rdev->dev, "Card not posted and no BIOS - ignoring\n");
1803                         return -EINVAL;
1804                 }
1805                 DRM_INFO("GPU not posted. posting now...\n");
1806                 atom_asic_init(rdev->mode_info.atom_context);
1807         }
1808         /* Initialize scratch registers */
1809         r600_scratch_init(rdev);
1810         /* Initialize surface registers */
1811         radeon_surface_init(rdev);
1812         /* Initialize clocks */
1813         radeon_get_clock_info(rdev->ddev);
1814         /* Fence driver */
1815         r = radeon_fence_driver_init(rdev);
1816         if (r)
1817                 return r;
1818         /* initialize memory controller */
1819         r = evergreen_mc_init(rdev);
1820         if (r)
1821                 return r;
1822         /* Memory manager */
1823         r = radeon_bo_init(rdev);
1824         if (r)
1825                 return r;
1826
1827         r = radeon_irq_kms_init(rdev);
1828         if (r)
1829                 return r;
1830
1831         ring->ring_obj = NULL;
1832         r600_ring_init(rdev, ring, 1024 * 1024);
1833
1834         ring = &rdev->ring[R600_RING_TYPE_DMA_INDEX];
1835         ring->ring_obj = NULL;
1836         r600_ring_init(rdev, ring, 64 * 1024);
1837
1838         ring = &rdev->ring[CAYMAN_RING_TYPE_DMA1_INDEX];
1839         ring->ring_obj = NULL;
1840         r600_ring_init(rdev, ring, 64 * 1024);
1841
1842         rdev->ih.ring_obj = NULL;
1843         r600_ih_ring_init(rdev, 64 * 1024);
1844
1845         r = r600_pcie_gart_init(rdev);
1846         if (r)
1847                 return r;
1848
1849         rdev->accel_working = true;
1850         r = cayman_startup(rdev);
1851         if (r) {
1852                 dev_err(rdev->dev, "disabling GPU acceleration\n");
1853                 cayman_cp_fini(rdev);
1854                 cayman_dma_fini(rdev);
1855                 r600_irq_fini(rdev);
1856                 if (rdev->flags & RADEON_IS_IGP)
1857                         si_rlc_fini(rdev);
1858                 radeon_wb_fini(rdev);
1859                 radeon_ib_pool_fini(rdev);
1860                 radeon_vm_manager_fini(rdev);
1861                 radeon_irq_kms_fini(rdev);
1862                 cayman_pcie_gart_fini(rdev);
1863                 rdev->accel_working = false;
1864         }
1865
1866         /* Don't start up if the MC ucode is missing.
1867          * The default clocks and voltages before the MC ucode
1868          * is loaded are not suffient for advanced operations.
1869          *
1870          * We can skip this check for TN, because there is no MC
1871          * ucode.
1872          */
1873         if (!rdev->mc_fw && !(rdev->flags & RADEON_IS_IGP)) {
1874                 DRM_ERROR("radeon: MC ucode required for NI+.\n");
1875                 return -EINVAL;
1876         }
1877
1878         return 0;
1879 }
1880
1881 void cayman_fini(struct radeon_device *rdev)
1882 {
1883         r600_blit_fini(rdev);
1884         cayman_cp_fini(rdev);
1885         cayman_dma_fini(rdev);
1886         r600_irq_fini(rdev);
1887         if (rdev->flags & RADEON_IS_IGP)
1888                 si_rlc_fini(rdev);
1889         radeon_wb_fini(rdev);
1890         radeon_vm_manager_fini(rdev);
1891         radeon_ib_pool_fini(rdev);
1892         radeon_irq_kms_fini(rdev);
1893         cayman_pcie_gart_fini(rdev);
1894         r600_vram_scratch_fini(rdev);
1895         radeon_gem_fini(rdev);
1896         radeon_fence_driver_fini(rdev);
1897         radeon_bo_fini(rdev);
1898         radeon_atombios_fini(rdev);
1899         kfree(rdev->bios);
1900         rdev->bios = NULL;
1901 }
1902
1903 /*
1904  * vm
1905  */
1906 int cayman_vm_init(struct radeon_device *rdev)
1907 {
1908         /* number of VMs */
1909         rdev->vm_manager.nvm = 8;
1910         /* base offset of vram pages */
1911         if (rdev->flags & RADEON_IS_IGP) {
1912                 u64 tmp = RREG32(FUS_MC_VM_FB_OFFSET);
1913                 tmp <<= 22;
1914                 rdev->vm_manager.vram_base_offset = tmp;
1915         } else
1916                 rdev->vm_manager.vram_base_offset = 0;
1917         return 0;
1918 }
1919
1920 void cayman_vm_fini(struct radeon_device *rdev)
1921 {
1922 }
1923
1924 #define R600_ENTRY_VALID   (1 << 0)
1925 #define R600_PTE_SYSTEM    (1 << 1)
1926 #define R600_PTE_SNOOPED   (1 << 2)
1927 #define R600_PTE_READABLE  (1 << 5)
1928 #define R600_PTE_WRITEABLE (1 << 6)
1929
1930 uint32_t cayman_vm_page_flags(struct radeon_device *rdev, uint32_t flags)
1931 {
1932         uint32_t r600_flags = 0;
1933         r600_flags |= (flags & RADEON_VM_PAGE_VALID) ? R600_ENTRY_VALID : 0;
1934         r600_flags |= (flags & RADEON_VM_PAGE_READABLE) ? R600_PTE_READABLE : 0;
1935         r600_flags |= (flags & RADEON_VM_PAGE_WRITEABLE) ? R600_PTE_WRITEABLE : 0;
1936         if (flags & RADEON_VM_PAGE_SYSTEM) {
1937                 r600_flags |= R600_PTE_SYSTEM;
1938                 r600_flags |= (flags & RADEON_VM_PAGE_SNOOPED) ? R600_PTE_SNOOPED : 0;
1939         }
1940         return r600_flags;
1941 }
1942
1943 /**
1944  * cayman_vm_set_page - update the page tables using the CP
1945  *
1946  * @rdev: radeon_device pointer
1947  * @pe: addr of the page entry
1948  * @addr: dst addr to write into pe
1949  * @count: number of page entries to update
1950  * @incr: increase next addr by incr bytes
1951  * @flags: access flags
1952  *
1953  * Update the page tables using the CP (cayman-si).
1954  */
1955 void cayman_vm_set_page(struct radeon_device *rdev, uint64_t pe,
1956                         uint64_t addr, unsigned count,
1957                         uint32_t incr, uint32_t flags)
1958 {
1959         struct radeon_ring *ring = &rdev->ring[rdev->asic->vm.pt_ring_index];
1960         uint32_t r600_flags = cayman_vm_page_flags(rdev, flags);
1961         uint64_t value;
1962         unsigned ndw;
1963
1964         if (rdev->asic->vm.pt_ring_index == RADEON_RING_TYPE_GFX_INDEX) {
1965                 while (count) {
1966                         ndw = 1 + count * 2;
1967                         if (ndw > 0x3FFF)
1968                                 ndw = 0x3FFF;
1969
1970                         radeon_ring_write(ring, PACKET3(PACKET3_ME_WRITE, ndw));
1971                         radeon_ring_write(ring, pe);
1972                         radeon_ring_write(ring, upper_32_bits(pe) & 0xff);
1973                         for (; ndw > 1; ndw -= 2, --count, pe += 8) {
1974                                 if (flags & RADEON_VM_PAGE_SYSTEM) {
1975                                         value = radeon_vm_map_gart(rdev, addr);
1976                                         value &= 0xFFFFFFFFFFFFF000ULL;
1977                                 } else if (flags & RADEON_VM_PAGE_VALID) {
1978                                         value = addr;
1979                                 } else {
1980                                         value = 0;
1981                                 }
1982                                 addr += incr;
1983                                 value |= r600_flags;
1984                                 radeon_ring_write(ring, value);
1985                                 radeon_ring_write(ring, upper_32_bits(value));
1986                         }
1987                 }
1988         } else {
1989                 while (count) {
1990                         ndw = count * 2;
1991                         if (ndw > 0xFFFFE)
1992                                 ndw = 0xFFFFE;
1993
1994                         /* for non-physically contiguous pages (system) */
1995                         radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_WRITE, 0, 0, ndw));
1996                         radeon_ring_write(ring, pe);
1997                         radeon_ring_write(ring, upper_32_bits(pe) & 0xff);
1998                         for (; ndw > 0; ndw -= 2, --count, pe += 8) {
1999                                 if (flags & RADEON_VM_PAGE_SYSTEM) {
2000                                         value = radeon_vm_map_gart(rdev, addr);
2001                                         value &= 0xFFFFFFFFFFFFF000ULL;
2002                                 } else if (flags & RADEON_VM_PAGE_VALID) {
2003                                         value = addr;
2004                                 } else {
2005                                         value = 0;
2006                                 }
2007                                 addr += incr;
2008                                 value |= r600_flags;
2009                                 radeon_ring_write(ring, value);
2010                                 radeon_ring_write(ring, upper_32_bits(value));
2011                         }
2012                 }
2013         }
2014 }
2015
2016 /**
2017  * cayman_vm_flush - vm flush using the CP
2018  *
2019  * @rdev: radeon_device pointer
2020  *
2021  * Update the page table base and flush the VM TLB
2022  * using the CP (cayman-si).
2023  */
2024 void cayman_vm_flush(struct radeon_device *rdev, int ridx, struct radeon_vm *vm)
2025 {
2026         struct radeon_ring *ring = &rdev->ring[ridx];
2027
2028         if (vm == NULL)
2029                 return;
2030
2031         radeon_ring_write(ring, PACKET0(VM_CONTEXT0_PAGE_TABLE_BASE_ADDR + (vm->id << 2), 0));
2032         radeon_ring_write(ring, vm->pd_gpu_addr >> 12);
2033
2034         /* flush hdp cache */
2035         radeon_ring_write(ring, PACKET0(HDP_MEM_COHERENCY_FLUSH_CNTL, 0));
2036         radeon_ring_write(ring, 0x1);
2037
2038         /* bits 0-7 are the VM contexts0-7 */
2039         radeon_ring_write(ring, PACKET0(VM_INVALIDATE_REQUEST, 0));
2040         radeon_ring_write(ring, 1 << vm->id);
2041
2042         /* sync PFP to ME, otherwise we might get invalid PFP reads */
2043         radeon_ring_write(ring, PACKET3(PACKET3_PFP_SYNC_ME, 0));
2044         radeon_ring_write(ring, 0x0);
2045 }
2046
2047 void cayman_dma_vm_flush(struct radeon_device *rdev, int ridx, struct radeon_vm *vm)
2048 {
2049         struct radeon_ring *ring = &rdev->ring[ridx];
2050
2051         if (vm == NULL)
2052                 return;
2053
2054         radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_SRBM_WRITE, 0, 0, 0));
2055         radeon_ring_write(ring, (0xf << 16) | ((VM_CONTEXT0_PAGE_TABLE_BASE_ADDR + (vm->id << 2)) >> 2));
2056         radeon_ring_write(ring, vm->pd_gpu_addr >> 12);
2057
2058         /* flush hdp cache */
2059         radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_SRBM_WRITE, 0, 0, 0));
2060         radeon_ring_write(ring, (0xf << 16) | (HDP_MEM_COHERENCY_FLUSH_CNTL >> 2));
2061         radeon_ring_write(ring, 1);
2062
2063         /* bits 0-7 are the VM contexts0-7 */
2064         radeon_ring_write(ring, DMA_PACKET(DMA_PACKET_SRBM_WRITE, 0, 0, 0));
2065         radeon_ring_write(ring, (0xf << 16) | (VM_INVALIDATE_REQUEST >> 2));
2066         radeon_ring_write(ring, 1 << vm->id);
2067 }
2068