drivers/gpu/drm/amd/amdgpu/gmc_v7

/* [<][>][^][v][top][bottom][index][help] */
This source file includes following definitions.
gmc_v7_0_init_golden_registers
gmc_v7_0_mc_stop
gmc_v7_0_mc_resume
gmc_v7_0_init_microcode
gmc_v7_0_mc_load_microcode
gmc_v7_0_vram_gtt_location
gmc_v7_0_mc_program
gmc_v7_0_mc_init
gmc_v7_0_flush_gpu_tlb
gmc_v7_0_emit_flush_gpu_tlb
gmc_v7_0_emit_pasid_mapping
gmc_v7_0_get_vm_pte_flags
gmc_v7_0_get_vm_pde
gmc_v7_0_set_fault_enable_default
gmc_v7_0_set_prt
gmc_v7_0_gart_enable
gmc_v7_0_gart_init
gmc_v7_0_gart_disable
gmc_v7_0_vm_decode_fault
gmc_v7_0_enable_mc_ls
gmc_v7_0_enable_mc_mgcg
gmc_v7_0_enable_bif_mgls
gmc_v7_0_enable_hdp_mgcg
gmc_v7_0_enable_hdp_ls
gmc_v7_0_convert_vram_type
gmc_v7_0_early_init
gmc_v7_0_late_init
gmc_v7_0_get_vbios_fb_size
gmc_v7_0_sw_init
gmc_v7_0_sw_fini
gmc_v7_0_hw_init
gmc_v7_0_hw_fini
gmc_v7_0_suspend
gmc_v7_0_resume
gmc_v7_0_is_idle
gmc_v7_0_wait_for_idle
gmc_v7_0_soft_reset
gmc_v7_0_vm_fault_interrupt_state
gmc_v7_0_process_interrupt
gmc_v7_0_set_clockgating_state
gmc_v7_0_set_powergating_state
gmc_v7_0_set_gmc_funcs
gmc_v7_0_set_irq_funcs
   1 /*
   2  * Copyright 2014 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  */
  23 
  24 #include <linux/firmware.h>
  25 #include <linux/module.h>
  26 #include <linux/pci.h>
  27 
  28 #include <drm/drm_cache.h>
  29 #include "amdgpu.h"
  30 #include "cikd.h"
  31 #include "cik.h"
  32 #include "gmc_v7_0.h"
  33 #include "amdgpu_ucode.h"
  34 #include "amdgpu_amdkfd.h"
  35 #include "amdgpu_gem.h"
  36 
  37 #include "bif/bif_4_1_d.h"
  38 #include "bif/bif_4_1_sh_mask.h"
  39 
  40 #include "gmc/gmc_7_1_d.h"
  41 #include "gmc/gmc_7_1_sh_mask.h"
  42 
  43 #include "oss/oss_2_0_d.h"
  44 #include "oss/oss_2_0_sh_mask.h"
  45 
  46 #include "dce/dce_8_0_d.h"
  47 #include "dce/dce_8_0_sh_mask.h"
  48 
  49 #include "amdgpu_atombios.h"
  50 
  51 #include "ivsrcid/ivsrcid_vislands30.h"
  52 
  53 static void gmc_v7_0_set_gmc_funcs(struct amdgpu_device *adev);
  54 static void gmc_v7_0_set_irq_funcs(struct amdgpu_device *adev);
  55 static int gmc_v7_0_wait_for_idle(void *handle);
  56 
  57 MODULE_FIRMWARE("amdgpu/bonaire_mc.bin");
  58 MODULE_FIRMWARE("amdgpu/hawaii_mc.bin");
  59 MODULE_FIRMWARE("amdgpu/topaz_mc.bin");
  60 
  61 static const u32 golden_settings_iceland_a11[] =
  62 {
  63         mmVM_PRT_APERTURE0_LOW_ADDR, 0x0fffffff, 0x0fffffff,
  64         mmVM_PRT_APERTURE1_LOW_ADDR, 0x0fffffff, 0x0fffffff,
  65         mmVM_PRT_APERTURE2_LOW_ADDR, 0x0fffffff, 0x0fffffff,
  66         mmVM_PRT_APERTURE3_LOW_ADDR, 0x0fffffff, 0x0fffffff
  67 };
  68 
  69 static const u32 iceland_mgcg_cgcg_init[] =
  70 {
  71         mmMC_MEM_POWER_LS, 0xffffffff, 0x00000104
  72 };
  73 
  74 static void gmc_v7_0_init_golden_registers(struct amdgpu_device *adev)
  75 {
  76         switch (adev->asic_type) {
  77         case CHIP_TOPAZ:
  78                 amdgpu_device_program_register_sequence(adev,
  79                                                         iceland_mgcg_cgcg_init,
  80                                                         ARRAY_SIZE(iceland_mgcg_cgcg_init));
  81                 amdgpu_device_program_register_sequence(adev,
  82                                                         golden_settings_iceland_a11,
  83                                                         ARRAY_SIZE(golden_settings_iceland_a11));
  84                 break;
  85         default:
  86                 break;
  87         }
  88 }
  89 
  90 static void gmc_v7_0_mc_stop(struct amdgpu_device *adev)
  91 {
  92         u32 blackout;
  93 
  94         gmc_v7_0_wait_for_idle((void *)adev);
  95 
  96         blackout = RREG32(mmMC_SHARED_BLACKOUT_CNTL);
  97         if (REG_GET_FIELD(blackout, MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE) != 1) {
  98                 /* Block CPU access */
  99                 WREG32(mmBIF_FB_EN, 0);
 100                 /* blackout the MC */
 101                 blackout = REG_SET_FIELD(blackout,
 102                                          MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE, 0);
 103                 WREG32(mmMC_SHARED_BLACKOUT_CNTL, blackout | 1);
 104         }
 105         /* wait for the MC to settle */
 106         udelay(100);
 107 }
 108 
 109 static void gmc_v7_0_mc_resume(struct amdgpu_device *adev)
 110 {
 111         u32 tmp;
 112 
 113         /* unblackout the MC */
 114         tmp = RREG32(mmMC_SHARED_BLACKOUT_CNTL);
 115         tmp = REG_SET_FIELD(tmp, MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE, 0);
 116         WREG32(mmMC_SHARED_BLACKOUT_CNTL, tmp);
 117         /* allow CPU access */
 118         tmp = REG_SET_FIELD(0, BIF_FB_EN, FB_READ_EN, 1);
 119         tmp = REG_SET_FIELD(tmp, BIF_FB_EN, FB_WRITE_EN, 1);
 120         WREG32(mmBIF_FB_EN, tmp);
 121 }
 122 
 123 /**
 124  * gmc_v7_0_init_microcode - load ucode images from disk
 125  *
 126  * @adev: amdgpu_device pointer
 127  *
 128  * Use the firmware interface to load the ucode images into
 129  * the driver (not loaded into hw).
 130  * Returns 0 on success, error on failure.
 131  */
 132 static int gmc_v7_0_init_microcode(struct amdgpu_device *adev)
 133 {
 134         const char *chip_name;
 135         char fw_name[30];
 136         int err;
 137 
 138         DRM_DEBUG("\n");
 139 
 140         switch (adev->asic_type) {
 141         case CHIP_BONAIRE:
 142                 chip_name = "bonaire";
 143                 break;
 144         case CHIP_HAWAII:
 145                 chip_name = "hawaii";
 146                 break;
 147         case CHIP_TOPAZ:
 148                 chip_name = "topaz";
 149                 break;
 150         case CHIP_KAVERI:
 151         case CHIP_KABINI:
 152         case CHIP_MULLINS:
 153                 return 0;
 154         default: BUG();
 155         }
 156 
 157         snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_mc.bin", chip_name);
 158 
 159         err = request_firmware(&adev->gmc.fw, fw_name, adev->dev);
 160         if (err)
 161                 goto out;
 162         err = amdgpu_ucode_validate(adev->gmc.fw);
 163 
 164 out:
 165         if (err) {
 166                 pr_err("cik_mc: Failed to load firmware \"%s\"\n", fw_name);
 167                 release_firmware(adev->gmc.fw);
 168                 adev->gmc.fw = NULL;
 169         }
 170         return err;
 171 }
 172 
 173 /**
 174  * gmc_v7_0_mc_load_microcode - load MC ucode into the hw
 175  *
 176  * @adev: amdgpu_device pointer
 177  *
 178  * Load the GDDR MC ucode into the hw (CIK).
 179  * Returns 0 on success, error on failure.
 180  */
 181 static int gmc_v7_0_mc_load_microcode(struct amdgpu_device *adev)
 182 {
 183         const struct mc_firmware_header_v1_0 *hdr;
 184         const __le32 *fw_data = NULL;
 185         const __le32 *io_mc_regs = NULL;
 186         u32 running;
 187         int i, ucode_size, regs_size;
 188 
 189         if (!adev->gmc.fw)
 190                 return -EINVAL;
 191 
 192         hdr = (const struct mc_firmware_header_v1_0 *)adev->gmc.fw->data;
 193         amdgpu_ucode_print_mc_hdr(&hdr->header);
 194 
 195         adev->gmc.fw_version = le32_to_cpu(hdr->header.ucode_version);
 196         regs_size = le32_to_cpu(hdr->io_debug_size_bytes) / (4 * 2);
 197         io_mc_regs = (const __le32 *)
 198                 (adev->gmc.fw->data + le32_to_cpu(hdr->io_debug_array_offset_bytes));
 199         ucode_size = le32_to_cpu(hdr->header.ucode_size_bytes) / 4;
 200         fw_data = (const __le32 *)
 201                 (adev->gmc.fw->data + le32_to_cpu(hdr->header.ucode_array_offset_bytes));
 202 
 203         running = REG_GET_FIELD(RREG32(mmMC_SEQ_SUP_CNTL), MC_SEQ_SUP_CNTL, RUN);
 204 
 205         if (running == 0) {
 206                 /* reset the engine and set to writable */
 207                 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000008);
 208                 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000010);
 209 
 210                 /* load mc io regs */
 211                 for (i = 0; i < regs_size; i++) {
 212                         WREG32(mmMC_SEQ_IO_DEBUG_INDEX, le32_to_cpup(io_mc_regs++));
 213                         WREG32(mmMC_SEQ_IO_DEBUG_DATA, le32_to_cpup(io_mc_regs++));
 214                 }
 215                 /* load the MC ucode */
 216                 for (i = 0; i < ucode_size; i++)
 217                         WREG32(mmMC_SEQ_SUP_PGM, le32_to_cpup(fw_data++));
 218 
 219                 /* put the engine back into the active state */
 220                 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000008);
 221                 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000004);
 222                 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000001);
 223 
 224                 /* wait for training to complete */
 225                 for (i = 0; i < adev->usec_timeout; i++) {
 226                         if (REG_GET_FIELD(RREG32(mmMC_SEQ_TRAIN_WAKEUP_CNTL),
 227                                           MC_SEQ_TRAIN_WAKEUP_CNTL, TRAIN_DONE_D0))
 228                                 break;
 229                         udelay(1);
 230                 }
 231                 for (i = 0; i < adev->usec_timeout; i++) {
 232                         if (REG_GET_FIELD(RREG32(mmMC_SEQ_TRAIN_WAKEUP_CNTL),
 233                                           MC_SEQ_TRAIN_WAKEUP_CNTL, TRAIN_DONE_D1))
 234                                 break;
 235                         udelay(1);
 236                 }
 237         }
 238 
 239         return 0;
 240 }
 241 
 242 static void gmc_v7_0_vram_gtt_location(struct amdgpu_device *adev,
 243                                        struct amdgpu_gmc *mc)
 244 {
 245         u64 base = RREG32(mmMC_VM_FB_LOCATION) & 0xFFFF;
 246         base <<= 24;
 247 
 248         amdgpu_gmc_vram_location(adev, mc, base);
 249         amdgpu_gmc_gart_location(adev, mc);
 250 }
 251 
 252 /**
 253  * gmc_v7_0_mc_program - program the GPU memory controller
 254  *
 255  * @adev: amdgpu_device pointer
 256  *
 257  * Set the location of vram, gart, and AGP in the GPU's
 258  * physical address space (CIK).
 259  */
 260 static void gmc_v7_0_mc_program(struct amdgpu_device *adev)
 261 {
 262         u32 tmp;
 263         int i, j;
 264 
 265         /* Initialize HDP */
 266         for (i = 0, j = 0; i < 32; i++, j += 0x6) {
 267                 WREG32((0xb05 + j), 0x00000000);
 268                 WREG32((0xb06 + j), 0x00000000);
 269                 WREG32((0xb07 + j), 0x00000000);
 270                 WREG32((0xb08 + j), 0x00000000);
 271                 WREG32((0xb09 + j), 0x00000000);
 272         }
 273         WREG32(mmHDP_REG_COHERENCY_FLUSH_CNTL, 0);
 274 
 275         if (gmc_v7_0_wait_for_idle((void *)adev)) {
 276                 dev_warn(adev->dev, "Wait for MC idle timedout !\n");
 277         }
 278         if (adev->mode_info.num_crtc) {
 279                 /* Lockout access through VGA aperture*/
 280                 tmp = RREG32(mmVGA_HDP_CONTROL);
 281                 tmp = REG_SET_FIELD(tmp, VGA_HDP_CONTROL, VGA_MEMORY_DISABLE, 1);
 282                 WREG32(mmVGA_HDP_CONTROL, tmp);
 283 
 284                 /* disable VGA render */
 285                 tmp = RREG32(mmVGA_RENDER_CONTROL);
 286                 tmp = REG_SET_FIELD(tmp, VGA_RENDER_CONTROL, VGA_VSTATUS_CNTL, 0);
 287                 WREG32(mmVGA_RENDER_CONTROL, tmp);
 288         }
 289         /* Update configuration */
 290         WREG32(mmMC_VM_SYSTEM_APERTURE_LOW_ADDR,
 291                adev->gmc.vram_start >> 12);
 292         WREG32(mmMC_VM_SYSTEM_APERTURE_HIGH_ADDR,
 293                adev->gmc.vram_end >> 12);
 294         WREG32(mmMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR,
 295                adev->vram_scratch.gpu_addr >> 12);
 296         WREG32(mmMC_VM_AGP_BASE, 0);
 297         WREG32(mmMC_VM_AGP_TOP, 0x0FFFFFFF);
 298         WREG32(mmMC_VM_AGP_BOT, 0x0FFFFFFF);
 299         if (gmc_v7_0_wait_for_idle((void *)adev)) {
 300                 dev_warn(adev->dev, "Wait for MC idle timedout !\n");
 301         }
 302 
 303         WREG32(mmBIF_FB_EN, BIF_FB_EN__FB_READ_EN_MASK | BIF_FB_EN__FB_WRITE_EN_MASK);
 304 
 305         tmp = RREG32(mmHDP_MISC_CNTL);
 306         tmp = REG_SET_FIELD(tmp, HDP_MISC_CNTL, FLUSH_INVALIDATE_CACHE, 0);
 307         WREG32(mmHDP_MISC_CNTL, tmp);
 308 
 309         tmp = RREG32(mmHDP_HOST_PATH_CNTL);
 310         WREG32(mmHDP_HOST_PATH_CNTL, tmp);
 311 }
 312 
 313 /**
 314  * gmc_v7_0_mc_init - initialize the memory controller driver params
 315  *
 316  * @adev: amdgpu_device pointer
 317  *
 318  * Look up the amount of vram, vram width, and decide how to place
 319  * vram and gart within the GPU's physical address space (CIK).
 320  * Returns 0 for success.
 321  */
 322 static int gmc_v7_0_mc_init(struct amdgpu_device *adev)
 323 {
 324         int r;
 325 
 326         adev->gmc.vram_width = amdgpu_atombios_get_vram_width(adev);
 327         if (!adev->gmc.vram_width) {
 328                 u32 tmp;
 329                 int chansize, numchan;
 330 
 331                 /* Get VRAM informations */
 332                 tmp = RREG32(mmMC_ARB_RAMCFG);
 333                 if (REG_GET_FIELD(tmp, MC_ARB_RAMCFG, CHANSIZE)) {
 334                         chansize = 64;
 335                 } else {
 336                         chansize = 32;
 337                 }
 338                 tmp = RREG32(mmMC_SHARED_CHMAP);
 339                 switch (REG_GET_FIELD(tmp, MC_SHARED_CHMAP, NOOFCHAN)) {
 340                 case 0:
 341                 default:
 342                         numchan = 1;
 343                         break;
 344                 case 1:
 345                         numchan = 2;
 346                         break;
 347                 case 2:
 348                         numchan = 4;
 349                         break;
 350                 case 3:
 351                         numchan = 8;
 352                         break;
 353                 case 4:
 354                         numchan = 3;
 355                         break;
 356                 case 5:
 357                         numchan = 6;
 358                         break;
 359                 case 6:
 360                         numchan = 10;
 361                         break;
 362                 case 7:
 363                         numchan = 12;
 364                         break;
 365                 case 8:
 366                         numchan = 16;
 367                         break;
 368                 }
 369                 adev->gmc.vram_width = numchan * chansize;
 370         }
 371         /* size in MB on si */
 372         adev->gmc.mc_vram_size = RREG32(mmCONFIG_MEMSIZE) * 1024ULL * 1024ULL;
 373         adev->gmc.real_vram_size = RREG32(mmCONFIG_MEMSIZE) * 1024ULL * 1024ULL;
 374 
 375         if (!(adev->flags & AMD_IS_APU)) {
 376                 r = amdgpu_device_resize_fb_bar(adev);
 377                 if (r)
 378                         return r;
 379         }
 380         adev->gmc.aper_base = pci_resource_start(adev->pdev, 0);
 381         adev->gmc.aper_size = pci_resource_len(adev->pdev, 0);
 382 
 383 #ifdef CONFIG_X86_64
 384         if (adev->flags & AMD_IS_APU) {
 385                 adev->gmc.aper_base = ((u64)RREG32(mmMC_VM_FB_OFFSET)) << 22;
 386                 adev->gmc.aper_size = adev->gmc.real_vram_size;
 387         }
 388 #endif
 389 
 390         /* In case the PCI BAR is larger than the actual amount of vram */
 391         adev->gmc.visible_vram_size = adev->gmc.aper_size;
 392         if (adev->gmc.visible_vram_size > adev->gmc.real_vram_size)
 393                 adev->gmc.visible_vram_size = adev->gmc.real_vram_size;
 394 
 395         /* set the gart size */
 396         if (amdgpu_gart_size == -1) {
 397                 switch (adev->asic_type) {
 398                 case CHIP_TOPAZ:     /* no MM engines */
 399                 default:
 400                         adev->gmc.gart_size = 256ULL << 20;
 401                         break;
 402 #ifdef CONFIG_DRM_AMDGPU_CIK
 403                 case CHIP_BONAIRE: /* UVD, VCE do not support GPUVM */
 404                 case CHIP_HAWAII:  /* UVD, VCE do not support GPUVM */
 405                 case CHIP_KAVERI:  /* UVD, VCE do not support GPUVM */
 406                 case CHIP_KABINI:  /* UVD, VCE do not support GPUVM */
 407                 case CHIP_MULLINS: /* UVD, VCE do not support GPUVM */
 408                         adev->gmc.gart_size = 1024ULL << 20;
 409                         break;
 410 #endif
 411                 }
 412         } else {
 413                 adev->gmc.gart_size = (u64)amdgpu_gart_size << 20;
 414         }
 415 
 416         gmc_v7_0_vram_gtt_location(adev, &adev->gmc);
 417 
 418         return 0;
 419 }
 420 
 421 /*
 422  * GART
 423  * VMID 0 is the physical GPU addresses as used by the kernel.
 424  * VMIDs 1-15 are used for userspace clients and are handled
 425  * by the amdgpu vm/hsa code.
 426  */
 427 
 428 /**
 429  * gmc_v7_0_flush_gpu_tlb - gart tlb flush callback
 430  *
 431  * @adev: amdgpu_device pointer
 432  * @vmid: vm instance to flush
 433  *
 434  * Flush the TLB for the requested page table (CIK).
 435  */
 436 static void gmc_v7_0_flush_gpu_tlb(struct amdgpu_device *adev, uint32_t vmid,
 437                                         uint32_t vmhub, uint32_t flush_type)
 438 {
 439         /* bits 0-15 are the VM contexts0-15 */
 440         WREG32(mmVM_INVALIDATE_REQUEST, 1 << vmid);
 441 }
 442 
 443 static uint64_t gmc_v7_0_emit_flush_gpu_tlb(struct amdgpu_ring *ring,
 444                                             unsigned vmid, uint64_t pd_addr)
 445 {
 446         uint32_t reg;
 447 
 448         if (vmid < 8)
 449                 reg = mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + vmid;
 450         else
 451                 reg = mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + vmid - 8;
 452         amdgpu_ring_emit_wreg(ring, reg, pd_addr >> 12);
 453 
 454         /* bits 0-15 are the VM contexts0-15 */
 455         amdgpu_ring_emit_wreg(ring, mmVM_INVALIDATE_REQUEST, 1 << vmid);
 456 
 457         return pd_addr;
 458 }
 459 
 460 static void gmc_v7_0_emit_pasid_mapping(struct amdgpu_ring *ring, unsigned vmid,
 461                                         unsigned pasid)
 462 {
 463         amdgpu_ring_emit_wreg(ring, mmIH_VMID_0_LUT + vmid, pasid);
 464 }
 465 
 466 static uint64_t gmc_v7_0_get_vm_pte_flags(struct amdgpu_device *adev,
 467                                           uint32_t flags)
 468 {
 469         uint64_t pte_flag = 0;
 470 
 471         if (flags & AMDGPU_VM_PAGE_READABLE)
 472                 pte_flag |= AMDGPU_PTE_READABLE;
 473         if (flags & AMDGPU_VM_PAGE_WRITEABLE)
 474                 pte_flag |= AMDGPU_PTE_WRITEABLE;
 475         if (flags & AMDGPU_VM_PAGE_PRT)
 476                 pte_flag |= AMDGPU_PTE_PRT;
 477 
 478         return pte_flag;
 479 }
 480 
 481 static void gmc_v7_0_get_vm_pde(struct amdgpu_device *adev, int level,
 482                                 uint64_t *addr, uint64_t *flags)
 483 {
 484         BUG_ON(*addr & 0xFFFFFF0000000FFFULL);
 485 }
 486 
 487 /**
 488  * gmc_v8_0_set_fault_enable_default - update VM fault handling
 489  *
 490  * @adev: amdgpu_device pointer
 491  * @value: true redirects VM faults to the default page
 492  */
 493 static void gmc_v7_0_set_fault_enable_default(struct amdgpu_device *adev,
 494                                               bool value)
 495 {
 496         u32 tmp;
 497 
 498         tmp = RREG32(mmVM_CONTEXT1_CNTL);
 499         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 500                             RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 501         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 502                             DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 503         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 504                             PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 505         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 506                             VALID_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 507         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 508                             READ_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 509         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 510                             WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 511         WREG32(mmVM_CONTEXT1_CNTL, tmp);
 512 }
 513 
 514 /**
 515  * gmc_v7_0_set_prt - set PRT VM fault
 516  *
 517  * @adev: amdgpu_device pointer
 518  * @enable: enable/disable VM fault handling for PRT
 519  */
 520 static void gmc_v7_0_set_prt(struct amdgpu_device *adev, bool enable)
 521 {
 522         uint32_t tmp;
 523 
 524         if (enable && !adev->gmc.prt_warning) {
 525                 dev_warn(adev->dev, "Disabling VM faults because of PRT request!\n");
 526                 adev->gmc.prt_warning = true;
 527         }
 528 
 529         tmp = RREG32(mmVM_PRT_CNTL);
 530         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 531                             CB_DISABLE_READ_FAULT_ON_UNMAPPED_ACCESS, enable);
 532         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 533                             CB_DISABLE_WRITE_FAULT_ON_UNMAPPED_ACCESS, enable);
 534         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 535                             TC_DISABLE_READ_FAULT_ON_UNMAPPED_ACCESS, enable);
 536         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 537                             TC_DISABLE_WRITE_FAULT_ON_UNMAPPED_ACCESS, enable);
 538         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 539                             L2_CACHE_STORE_INVALID_ENTRIES, enable);
 540         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 541                             L1_TLB_STORE_INVALID_ENTRIES, enable);
 542         tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 543                             MASK_PDE0_FAULT, enable);
 544         WREG32(mmVM_PRT_CNTL, tmp);
 545 
 546         if (enable) {
 547                 uint32_t low = AMDGPU_VA_RESERVED_SIZE >> AMDGPU_GPU_PAGE_SHIFT;
 548                 uint32_t high = adev->vm_manager.max_pfn -
 549                         (AMDGPU_VA_RESERVED_SIZE >> AMDGPU_GPU_PAGE_SHIFT);
 550 
 551                 WREG32(mmVM_PRT_APERTURE0_LOW_ADDR, low);
 552                 WREG32(mmVM_PRT_APERTURE1_LOW_ADDR, low);
 553                 WREG32(mmVM_PRT_APERTURE2_LOW_ADDR, low);
 554                 WREG32(mmVM_PRT_APERTURE3_LOW_ADDR, low);
 555                 WREG32(mmVM_PRT_APERTURE0_HIGH_ADDR, high);
 556                 WREG32(mmVM_PRT_APERTURE1_HIGH_ADDR, high);
 557                 WREG32(mmVM_PRT_APERTURE2_HIGH_ADDR, high);
 558                 WREG32(mmVM_PRT_APERTURE3_HIGH_ADDR, high);
 559         } else {
 560                 WREG32(mmVM_PRT_APERTURE0_LOW_ADDR, 0xfffffff);
 561                 WREG32(mmVM_PRT_APERTURE1_LOW_ADDR, 0xfffffff);
 562                 WREG32(mmVM_PRT_APERTURE2_LOW_ADDR, 0xfffffff);
 563                 WREG32(mmVM_PRT_APERTURE3_LOW_ADDR, 0xfffffff);
 564                 WREG32(mmVM_PRT_APERTURE0_HIGH_ADDR, 0x0);
 565                 WREG32(mmVM_PRT_APERTURE1_HIGH_ADDR, 0x0);
 566                 WREG32(mmVM_PRT_APERTURE2_HIGH_ADDR, 0x0);
 567                 WREG32(mmVM_PRT_APERTURE3_HIGH_ADDR, 0x0);
 568         }
 569 }
 570 
 571 /**
 572  * gmc_v7_0_gart_enable - gart enable
 573  *
 574  * @adev: amdgpu_device pointer
 575  *
 576  * This sets up the TLBs, programs the page tables for VMID0,
 577  * sets up the hw for VMIDs 1-15 which are allocated on
 578  * demand, and sets up the global locations for the LDS, GDS,
 579  * and GPUVM for FSA64 clients (CIK).
 580  * Returns 0 for success, errors for failure.
 581  */
 582 static int gmc_v7_0_gart_enable(struct amdgpu_device *adev)
 583 {
 584         uint64_t table_addr;
 585         int r, i;
 586         u32 tmp, field;
 587 
 588         if (adev->gart.bo == NULL) {
 589                 dev_err(adev->dev, "No VRAM object for PCIE GART.\n");
 590                 return -EINVAL;
 591         }
 592         r = amdgpu_gart_table_vram_pin(adev);
 593         if (r)
 594                 return r;
 595 
 596         table_addr = amdgpu_bo_gpu_offset(adev->gart.bo);
 597 
 598         /* Setup TLB control */
 599         tmp = RREG32(mmMC_VM_MX_L1_TLB_CNTL);
 600         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 1);
 601         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_FRAGMENT_PROCESSING, 1);
 602         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, SYSTEM_ACCESS_MODE, 3);
 603         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_ADVANCED_DRIVER_MODEL, 1);
 604         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, SYSTEM_APERTURE_UNMAPPED_ACCESS, 0);
 605         WREG32(mmMC_VM_MX_L1_TLB_CNTL, tmp);
 606         /* Setup L2 cache */
 607         tmp = RREG32(mmVM_L2_CNTL);
 608         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_CACHE, 1);
 609         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_FRAGMENT_PROCESSING, 1);
 610         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE, 1);
 611         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_PDE0_CACHE_LRU_UPDATE_BY_WRITE, 1);
 612         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, EFFECTIVE_L2_QUEUE_SIZE, 7);
 613         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, CONTEXT1_IDENTITY_ACCESS_MODE, 1);
 614         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_DEFAULT_PAGE_OUT_TO_SYSTEM_MEMORY, 1);
 615         WREG32(mmVM_L2_CNTL, tmp);
 616         tmp = REG_SET_FIELD(0, VM_L2_CNTL2, INVALIDATE_ALL_L1_TLBS, 1);
 617         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL2, INVALIDATE_L2_CACHE, 1);
 618         WREG32(mmVM_L2_CNTL2, tmp);
 619 
 620         field = adev->vm_manager.fragment_size;
 621         tmp = RREG32(mmVM_L2_CNTL3);
 622         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, L2_CACHE_BIGK_ASSOCIATIVITY, 1);
 623         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, BANK_SELECT, field);
 624         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, L2_CACHE_BIGK_FRAGMENT_SIZE, field);
 625         WREG32(mmVM_L2_CNTL3, tmp);
 626         /* setup context0 */
 627         WREG32(mmVM_CONTEXT0_PAGE_TABLE_START_ADDR, adev->gmc.gart_start >> 12);
 628         WREG32(mmVM_CONTEXT0_PAGE_TABLE_END_ADDR, adev->gmc.gart_end >> 12);
 629         WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR, table_addr >> 12);
 630         WREG32(mmVM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR,
 631                         (u32)(adev->dummy_page_addr >> 12));
 632         WREG32(mmVM_CONTEXT0_CNTL2, 0);
 633         tmp = RREG32(mmVM_CONTEXT0_CNTL);
 634         tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, ENABLE_CONTEXT, 1);
 635         tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, PAGE_TABLE_DEPTH, 0);
 636         tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 637         WREG32(mmVM_CONTEXT0_CNTL, tmp);
 638 
 639         WREG32(0x575, 0);
 640         WREG32(0x576, 0);
 641         WREG32(0x577, 0);
 642 
 643         /* empty context1-15 */
 644         /* FIXME start with 4G, once using 2 level pt switch to full
 645          * vm size space
 646          */
 647         /* set vm size, must be a multiple of 4 */
 648         WREG32(mmVM_CONTEXT1_PAGE_TABLE_START_ADDR, 0);
 649         WREG32(mmVM_CONTEXT1_PAGE_TABLE_END_ADDR, adev->vm_manager.max_pfn - 1);
 650         for (i = 1; i < 16; i++) {
 651                 if (i < 8)
 652                         WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + i,
 653                                table_addr >> 12);
 654                 else
 655                         WREG32(mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + i - 8,
 656                                table_addr >> 12);
 657         }
 658 
 659         /* enable context1-15 */
 660         WREG32(mmVM_CONTEXT1_PROTECTION_FAULT_DEFAULT_ADDR,
 661                (u32)(adev->dummy_page_addr >> 12));
 662         WREG32(mmVM_CONTEXT1_CNTL2, 4);
 663         tmp = RREG32(mmVM_CONTEXT1_CNTL);
 664         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, ENABLE_CONTEXT, 1);
 665         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, PAGE_TABLE_DEPTH, 1);
 666         tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, PAGE_TABLE_BLOCK_SIZE,
 667                             adev->vm_manager.block_size - 9);
 668         WREG32(mmVM_CONTEXT1_CNTL, tmp);
 669         if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_ALWAYS)
 670                 gmc_v7_0_set_fault_enable_default(adev, false);
 671         else
 672                 gmc_v7_0_set_fault_enable_default(adev, true);
 673 
 674         if (adev->asic_type == CHIP_KAVERI) {
 675                 tmp = RREG32(mmCHUB_CONTROL);
 676                 tmp &= ~BYPASS_VM;
 677                 WREG32(mmCHUB_CONTROL, tmp);
 678         }
 679 
 680         gmc_v7_0_flush_gpu_tlb(adev, 0, 0, 0);
 681         DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n",
 682                  (unsigned)(adev->gmc.gart_size >> 20),
 683                  (unsigned long long)table_addr);
 684         adev->gart.ready = true;
 685         return 0;
 686 }
 687 
 688 static int gmc_v7_0_gart_init(struct amdgpu_device *adev)
 689 {
 690         int r;
 691 
 692         if (adev->gart.bo) {
 693                 WARN(1, "R600 PCIE GART already initialized\n");
 694                 return 0;
 695         }
 696         /* Initialize common gart structure */
 697         r = amdgpu_gart_init(adev);
 698         if (r)
 699                 return r;
 700         adev->gart.table_size = adev->gart.num_gpu_pages * 8;
 701         adev->gart.gart_pte_flags = 0;
 702         return amdgpu_gart_table_vram_alloc(adev);
 703 }
 704 
 705 /**
 706  * gmc_v7_0_gart_disable - gart disable
 707  *
 708  * @adev: amdgpu_device pointer
 709  *
 710  * This disables all VM page table (CIK).
 711  */
 712 static void gmc_v7_0_gart_disable(struct amdgpu_device *adev)
 713 {
 714         u32 tmp;
 715 
 716         /* Disable all tables */
 717         WREG32(mmVM_CONTEXT0_CNTL, 0);
 718         WREG32(mmVM_CONTEXT1_CNTL, 0);
 719         /* Setup TLB control */
 720         tmp = RREG32(mmMC_VM_MX_L1_TLB_CNTL);
 721         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 0);
 722         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_FRAGMENT_PROCESSING, 0);
 723         tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_ADVANCED_DRIVER_MODEL, 0);
 724         WREG32(mmMC_VM_MX_L1_TLB_CNTL, tmp);
 725         /* Setup L2 cache */
 726         tmp = RREG32(mmVM_L2_CNTL);
 727         tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_CACHE, 0);
 728         WREG32(mmVM_L2_CNTL, tmp);
 729         WREG32(mmVM_L2_CNTL2, 0);
 730         amdgpu_gart_table_vram_unpin(adev);
 731 }
 732 
 733 /**
 734  * gmc_v7_0_vm_decode_fault - print human readable fault info
 735  *
 736  * @adev: amdgpu_device pointer
 737  * @status: VM_CONTEXT1_PROTECTION_FAULT_STATUS register value
 738  * @addr: VM_CONTEXT1_PROTECTION_FAULT_ADDR register value
 739  *
 740  * Print human readable fault information (CIK).
 741  */
 742 static void gmc_v7_0_vm_decode_fault(struct amdgpu_device *adev, u32 status,
 743                                      u32 addr, u32 mc_client, unsigned pasid)
 744 {
 745         u32 vmid = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS, VMID);
 746         u32 protections = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
 747                                         PROTECTIONS);
 748         char block[5] = { mc_client >> 24, (mc_client >> 16) & 0xff,
 749                 (mc_client >> 8) & 0xff, mc_client & 0xff, 0 };
 750         u32 mc_id;
 751 
 752         mc_id = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
 753                               MEMORY_CLIENT_ID);
 754 
 755         dev_err(adev->dev, "VM fault (0x%02x, vmid %d, pasid %d) at page %u, %s from '%s' (0x%08x) (%d)\n",
 756                protections, vmid, pasid, addr,
 757                REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
 758                              MEMORY_CLIENT_RW) ?
 759                "write" : "read", block, mc_client, mc_id);
 760 }
 761 
 762 
 763 static const u32 mc_cg_registers[] = {
 764         mmMC_HUB_MISC_HUB_CG,
 765         mmMC_HUB_MISC_SIP_CG,
 766         mmMC_HUB_MISC_VM_CG,
 767         mmMC_XPB_CLK_GAT,
 768         mmATC_MISC_CG,
 769         mmMC_CITF_MISC_WR_CG,
 770         mmMC_CITF_MISC_RD_CG,
 771         mmMC_CITF_MISC_VM_CG,
 772         mmVM_L2_CG,
 773 };
 774 
 775 static const u32 mc_cg_ls_en[] = {
 776         MC_HUB_MISC_HUB_CG__MEM_LS_ENABLE_MASK,
 777         MC_HUB_MISC_SIP_CG__MEM_LS_ENABLE_MASK,
 778         MC_HUB_MISC_VM_CG__MEM_LS_ENABLE_MASK,
 779         MC_XPB_CLK_GAT__MEM_LS_ENABLE_MASK,
 780         ATC_MISC_CG__MEM_LS_ENABLE_MASK,
 781         MC_CITF_MISC_WR_CG__MEM_LS_ENABLE_MASK,
 782         MC_CITF_MISC_RD_CG__MEM_LS_ENABLE_MASK,
 783         MC_CITF_MISC_VM_CG__MEM_LS_ENABLE_MASK,
 784         VM_L2_CG__MEM_LS_ENABLE_MASK,
 785 };
 786 
 787 static const u32 mc_cg_en[] = {
 788         MC_HUB_MISC_HUB_CG__ENABLE_MASK,
 789         MC_HUB_MISC_SIP_CG__ENABLE_MASK,
 790         MC_HUB_MISC_VM_CG__ENABLE_MASK,
 791         MC_XPB_CLK_GAT__ENABLE_MASK,
 792         ATC_MISC_CG__ENABLE_MASK,
 793         MC_CITF_MISC_WR_CG__ENABLE_MASK,
 794         MC_CITF_MISC_RD_CG__ENABLE_MASK,
 795         MC_CITF_MISC_VM_CG__ENABLE_MASK,
 796         VM_L2_CG__ENABLE_MASK,
 797 };
 798 
 799 static void gmc_v7_0_enable_mc_ls(struct amdgpu_device *adev,
 800                                   bool enable)
 801 {
 802         int i;
 803         u32 orig, data;
 804 
 805         for (i = 0; i < ARRAY_SIZE(mc_cg_registers); i++) {
 806                 orig = data = RREG32(mc_cg_registers[i]);
 807                 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_LS))
 808                         data |= mc_cg_ls_en[i];
 809                 else
 810                         data &= ~mc_cg_ls_en[i];
 811                 if (data != orig)
 812                         WREG32(mc_cg_registers[i], data);
 813         }
 814 }
 815 
 816 static void gmc_v7_0_enable_mc_mgcg(struct amdgpu_device *adev,
 817                                     bool enable)
 818 {
 819         int i;
 820         u32 orig, data;
 821 
 822         for (i = 0; i < ARRAY_SIZE(mc_cg_registers); i++) {
 823                 orig = data = RREG32(mc_cg_registers[i]);
 824                 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_MGCG))
 825                         data |= mc_cg_en[i];
 826                 else
 827                         data &= ~mc_cg_en[i];
 828                 if (data != orig)
 829                         WREG32(mc_cg_registers[i], data);
 830         }
 831 }
 832 
 833 static void gmc_v7_0_enable_bif_mgls(struct amdgpu_device *adev,
 834                                      bool enable)
 835 {
 836         u32 orig, data;
 837 
 838         orig = data = RREG32_PCIE(ixPCIE_CNTL2);
 839 
 840         if (enable && (adev->cg_flags & AMD_CG_SUPPORT_BIF_LS)) {
 841                 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_LS_EN, 1);
 842                 data = REG_SET_FIELD(data, PCIE_CNTL2, MST_MEM_LS_EN, 1);
 843                 data = REG_SET_FIELD(data, PCIE_CNTL2, REPLAY_MEM_LS_EN, 1);
 844                 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_AGGRESSIVE_LS_EN, 1);
 845         } else {
 846                 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_LS_EN, 0);
 847                 data = REG_SET_FIELD(data, PCIE_CNTL2, MST_MEM_LS_EN, 0);
 848                 data = REG_SET_FIELD(data, PCIE_CNTL2, REPLAY_MEM_LS_EN, 0);
 849                 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_AGGRESSIVE_LS_EN, 0);
 850         }
 851 
 852         if (orig != data)
 853                 WREG32_PCIE(ixPCIE_CNTL2, data);
 854 }
 855 
 856 static void gmc_v7_0_enable_hdp_mgcg(struct amdgpu_device *adev,
 857                                      bool enable)
 858 {
 859         u32 orig, data;
 860 
 861         orig = data = RREG32(mmHDP_HOST_PATH_CNTL);
 862 
 863         if (enable && (adev->cg_flags & AMD_CG_SUPPORT_HDP_MGCG))
 864                 data = REG_SET_FIELD(data, HDP_HOST_PATH_CNTL, CLOCK_GATING_DIS, 0);
 865         else
 866                 data = REG_SET_FIELD(data, HDP_HOST_PATH_CNTL, CLOCK_GATING_DIS, 1);
 867 
 868         if (orig != data)
 869                 WREG32(mmHDP_HOST_PATH_CNTL, data);
 870 }
 871 
 872 static void gmc_v7_0_enable_hdp_ls(struct amdgpu_device *adev,
 873                                    bool enable)
 874 {
 875         u32 orig, data;
 876 
 877         orig = data = RREG32(mmHDP_MEM_POWER_LS);
 878 
 879         if (enable && (adev->cg_flags & AMD_CG_SUPPORT_HDP_LS))
 880                 data = REG_SET_FIELD(data, HDP_MEM_POWER_LS, LS_ENABLE, 1);
 881         else
 882                 data = REG_SET_FIELD(data, HDP_MEM_POWER_LS, LS_ENABLE, 0);
 883 
 884         if (orig != data)
 885                 WREG32(mmHDP_MEM_POWER_LS, data);
 886 }
 887 
 888 static int gmc_v7_0_convert_vram_type(int mc_seq_vram_type)
 889 {
 890         switch (mc_seq_vram_type) {
 891         case MC_SEQ_MISC0__MT__GDDR1:
 892                 return AMDGPU_VRAM_TYPE_GDDR1;
 893         case MC_SEQ_MISC0__MT__DDR2:
 894                 return AMDGPU_VRAM_TYPE_DDR2;
 895         case MC_SEQ_MISC0__MT__GDDR3:
 896                 return AMDGPU_VRAM_TYPE_GDDR3;
 897         case MC_SEQ_MISC0__MT__GDDR4:
 898                 return AMDGPU_VRAM_TYPE_GDDR4;
 899         case MC_SEQ_MISC0__MT__GDDR5:
 900                 return AMDGPU_VRAM_TYPE_GDDR5;
 901         case MC_SEQ_MISC0__MT__HBM:
 902                 return AMDGPU_VRAM_TYPE_HBM;
 903         case MC_SEQ_MISC0__MT__DDR3:
 904                 return AMDGPU_VRAM_TYPE_DDR3;
 905         default:
 906                 return AMDGPU_VRAM_TYPE_UNKNOWN;
 907         }
 908 }
 909 
 910 static int gmc_v7_0_early_init(void *handle)
 911 {
 912         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 913 
 914         gmc_v7_0_set_gmc_funcs(adev);
 915         gmc_v7_0_set_irq_funcs(adev);
 916 
 917         adev->gmc.shared_aperture_start = 0x2000000000000000ULL;
 918         adev->gmc.shared_aperture_end =
 919                 adev->gmc.shared_aperture_start + (4ULL << 30) - 1;
 920         adev->gmc.private_aperture_start =
 921                 adev->gmc.shared_aperture_end + 1;
 922         adev->gmc.private_aperture_end =
 923                 adev->gmc.private_aperture_start + (4ULL << 30) - 1;
 924 
 925         return 0;
 926 }
 927 
 928 static int gmc_v7_0_late_init(void *handle)
 929 {
 930         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 931 
 932         amdgpu_bo_late_init(adev);
 933 
 934         if (amdgpu_vm_fault_stop != AMDGPU_VM_FAULT_STOP_ALWAYS)
 935                 return amdgpu_irq_get(adev, &adev->gmc.vm_fault, 0);
 936         else
 937                 return 0;
 938 }
 939 
 940 static unsigned gmc_v7_0_get_vbios_fb_size(struct amdgpu_device *adev)
 941 {
 942         u32 d1vga_control = RREG32(mmD1VGA_CONTROL);
 943         unsigned size;
 944 
 945         if (REG_GET_FIELD(d1vga_control, D1VGA_CONTROL, D1VGA_MODE_ENABLE)) {
 946                 size = 9 * 1024 * 1024; /* reserve 8MB for vga emulator and 1 MB for FB */
 947         } else {
 948                 u32 viewport = RREG32(mmVIEWPORT_SIZE);
 949                 size = (REG_GET_FIELD(viewport, VIEWPORT_SIZE, VIEWPORT_HEIGHT) *
 950                         REG_GET_FIELD(viewport, VIEWPORT_SIZE, VIEWPORT_WIDTH) *
 951                         4);
 952         }
 953         /* return 0 if the pre-OS buffer uses up most of vram */
 954         if ((adev->gmc.real_vram_size - size) < (8 * 1024 * 1024))
 955                 return 0;
 956         return size;
 957 }
 958 
 959 static int gmc_v7_0_sw_init(void *handle)
 960 {
 961         int r;
 962         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 963 
 964         adev->num_vmhubs = 1;
 965 
 966         if (adev->flags & AMD_IS_APU) {
 967                 adev->gmc.vram_type = AMDGPU_VRAM_TYPE_UNKNOWN;
 968         } else {
 969                 u32 tmp = RREG32(mmMC_SEQ_MISC0);
 970                 tmp &= MC_SEQ_MISC0__MT__MASK;
 971                 adev->gmc.vram_type = gmc_v7_0_convert_vram_type(tmp);
 972         }
 973 
 974         r = amdgpu_irq_add_id(adev, AMDGPU_IRQ_CLIENTID_LEGACY, VISLANDS30_IV_SRCID_GFX_PAGE_INV_FAULT, &adev->gmc.vm_fault);
 975         if (r)
 976                 return r;
 977 
 978         r = amdgpu_irq_add_id(adev, AMDGPU_IRQ_CLIENTID_LEGACY, VISLANDS30_IV_SRCID_GFX_MEM_PROT_FAULT, &adev->gmc.vm_fault);
 979         if (r)
 980                 return r;
 981 
 982         /* Adjust VM size here.
 983          * Currently set to 4GB ((1 << 20) 4k pages).
 984          * Max GPUVM size for cayman and SI is 40 bits.
 985          */
 986         amdgpu_vm_adjust_size(adev, 64, 9, 1, 40);
 987 
 988         /* Set the internal MC address mask
 989          * This is the max address of the GPU's
 990          * internal address space.
 991          */
 992         adev->gmc.mc_mask = 0xffffffffffULL; /* 40 bit MC */
 993 
 994         r = dma_set_mask_and_coherent(adev->dev, DMA_BIT_MASK(40));
 995         if (r) {
 996                 pr_warn("amdgpu: No suitable DMA available\n");
 997                 return r;
 998         }
 999         adev->need_swiotlb = drm_need_swiotlb(40);
1000 
1001         r = gmc_v7_0_init_microcode(adev);
1002         if (r) {
1003                 DRM_ERROR("Failed to load mc firmware!\n");
1004                 return r;
1005         }
1006 
1007         r = gmc_v7_0_mc_init(adev);
1008         if (r)
1009                 return r;
1010 
1011         adev->gmc.stolen_size = gmc_v7_0_get_vbios_fb_size(adev);
1012 
1013         /* Memory manager */
1014         r = amdgpu_bo_init(adev);
1015         if (r)
1016                 return r;
1017 
1018         r = gmc_v7_0_gart_init(adev);
1019         if (r)
1020                 return r;
1021 
1022         /*
1023          * number of VMs
1024          * VMID 0 is reserved for System
1025          * amdgpu graphics/compute will use VMIDs 1-7
1026          * amdkfd will use VMIDs 8-15
1027          */
1028         adev->vm_manager.id_mgr[0].num_ids = AMDGPU_NUM_OF_VMIDS;
1029         amdgpu_vm_manager_init(adev);
1030 
1031         /* base offset of vram pages */
1032         if (adev->flags & AMD_IS_APU) {
1033                 u64 tmp = RREG32(mmMC_VM_FB_OFFSET);
1034 
1035                 tmp <<= 22;
1036                 adev->vm_manager.vram_base_offset = tmp;
1037         } else {
1038                 adev->vm_manager.vram_base_offset = 0;
1039         }
1040 
1041         adev->gmc.vm_fault_info = kmalloc(sizeof(struct kfd_vm_fault_info),
1042                                         GFP_KERNEL);
1043         if (!adev->gmc.vm_fault_info)
1044                 return -ENOMEM;
1045         atomic_set(&adev->gmc.vm_fault_info_updated, 0);
1046 
1047         return 0;
1048 }
1049 
1050 static int gmc_v7_0_sw_fini(void *handle)
1051 {
1052         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1053 
1054         amdgpu_gem_force_release(adev);
1055         amdgpu_vm_manager_fini(adev);
1056         kfree(adev->gmc.vm_fault_info);
1057         amdgpu_gart_table_vram_free(adev);
1058         amdgpu_bo_fini(adev);
1059         amdgpu_gart_fini(adev);
1060         release_firmware(adev->gmc.fw);
1061         adev->gmc.fw = NULL;
1062 
1063         return 0;
1064 }
1065 
1066 static int gmc_v7_0_hw_init(void *handle)
1067 {
1068         int r;
1069         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1070 
1071         gmc_v7_0_init_golden_registers(adev);
1072 
1073         gmc_v7_0_mc_program(adev);
1074 
1075         if (!(adev->flags & AMD_IS_APU)) {
1076                 r = gmc_v7_0_mc_load_microcode(adev);
1077                 if (r) {
1078                         DRM_ERROR("Failed to load MC firmware!\n");
1079                         return r;
1080                 }
1081         }
1082 
1083         r = gmc_v7_0_gart_enable(adev);
1084         if (r)
1085                 return r;
1086 
1087         return r;
1088 }
1089 
1090 static int gmc_v7_0_hw_fini(void *handle)
1091 {
1092         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1093 
1094         amdgpu_irq_put(adev, &adev->gmc.vm_fault, 0);
1095         gmc_v7_0_gart_disable(adev);
1096 
1097         return 0;
1098 }
1099 
1100 static int gmc_v7_0_suspend(void *handle)
1101 {
1102         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1103 
1104         gmc_v7_0_hw_fini(adev);
1105 
1106         return 0;
1107 }
1108 
1109 static int gmc_v7_0_resume(void *handle)
1110 {
1111         int r;
1112         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1113 
1114         r = gmc_v7_0_hw_init(adev);
1115         if (r)
1116                 return r;
1117 
1118         amdgpu_vmid_reset_all(adev);
1119 
1120         return 0;
1121 }
1122 
1123 static bool gmc_v7_0_is_idle(void *handle)
1124 {
1125         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1126         u32 tmp = RREG32(mmSRBM_STATUS);
1127 
1128         if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
1129                    SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK | SRBM_STATUS__VMC_BUSY_MASK))
1130                 return false;
1131 
1132         return true;
1133 }
1134 
1135 static int gmc_v7_0_wait_for_idle(void *handle)
1136 {
1137         unsigned i;
1138         u32 tmp;
1139         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1140 
1141         for (i = 0; i < adev->usec_timeout; i++) {
1142                 /* read MC_STATUS */
1143                 tmp = RREG32(mmSRBM_STATUS) & (SRBM_STATUS__MCB_BUSY_MASK |
1144                                                SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
1145                                                SRBM_STATUS__MCC_BUSY_MASK |
1146                                                SRBM_STATUS__MCD_BUSY_MASK |
1147                                                SRBM_STATUS__VMC_BUSY_MASK);
1148                 if (!tmp)
1149                         return 0;
1150                 udelay(1);
1151         }
1152         return -ETIMEDOUT;
1153 
1154 }
1155 
1156 static int gmc_v7_0_soft_reset(void *handle)
1157 {
1158         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1159         u32 srbm_soft_reset = 0;
1160         u32 tmp = RREG32(mmSRBM_STATUS);
1161 
1162         if (tmp & SRBM_STATUS__VMC_BUSY_MASK)
1163                 srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset,
1164                                                 SRBM_SOFT_RESET, SOFT_RESET_VMC, 1);
1165 
1166         if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
1167                    SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK)) {
1168                 if (!(adev->flags & AMD_IS_APU))
1169                         srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset,
1170                                                         SRBM_SOFT_RESET, SOFT_RESET_MC, 1);
1171         }
1172 
1173         if (srbm_soft_reset) {
1174                 gmc_v7_0_mc_stop(adev);
1175                 if (gmc_v7_0_wait_for_idle((void *)adev)) {
1176                         dev_warn(adev->dev, "Wait for GMC idle timed out !\n");
1177                 }
1178 
1179 
1180                 tmp = RREG32(mmSRBM_SOFT_RESET);
1181                 tmp |= srbm_soft_reset;
1182                 dev_info(adev->dev, "SRBM_SOFT_RESET=0x%08X\n", tmp);
1183                 WREG32(mmSRBM_SOFT_RESET, tmp);
1184                 tmp = RREG32(mmSRBM_SOFT_RESET);
1185 
1186                 udelay(50);
1187 
1188                 tmp &= ~srbm_soft_reset;
1189                 WREG32(mmSRBM_SOFT_RESET, tmp);
1190                 tmp = RREG32(mmSRBM_SOFT_RESET);
1191 
1192                 /* Wait a little for things to settle down */
1193                 udelay(50);
1194 
1195                 gmc_v7_0_mc_resume(adev);
1196                 udelay(50);
1197         }
1198 
1199         return 0;
1200 }
1201 
1202 static int gmc_v7_0_vm_fault_interrupt_state(struct amdgpu_device *adev,
1203                                              struct amdgpu_irq_src *src,
1204                                              unsigned type,
1205                                              enum amdgpu_interrupt_state state)
1206 {
1207         u32 tmp;
1208         u32 bits = (VM_CONTEXT1_CNTL__RANGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1209                     VM_CONTEXT1_CNTL__DUMMY_PAGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1210                     VM_CONTEXT1_CNTL__PDE0_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1211                     VM_CONTEXT1_CNTL__VALID_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1212                     VM_CONTEXT1_CNTL__READ_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1213                     VM_CONTEXT1_CNTL__WRITE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK);
1214 
1215         switch (state) {
1216         case AMDGPU_IRQ_STATE_DISABLE:
1217                 /* system context */
1218                 tmp = RREG32(mmVM_CONTEXT0_CNTL);
1219                 tmp &= ~bits;
1220                 WREG32(mmVM_CONTEXT0_CNTL, tmp);
1221                 /* VMs */
1222                 tmp = RREG32(mmVM_CONTEXT1_CNTL);
1223                 tmp &= ~bits;
1224                 WREG32(mmVM_CONTEXT1_CNTL, tmp);
1225                 break;
1226         case AMDGPU_IRQ_STATE_ENABLE:
1227                 /* system context */
1228                 tmp = RREG32(mmVM_CONTEXT0_CNTL);
1229                 tmp |= bits;
1230                 WREG32(mmVM_CONTEXT0_CNTL, tmp);
1231                 /* VMs */
1232                 tmp = RREG32(mmVM_CONTEXT1_CNTL);
1233                 tmp |= bits;
1234                 WREG32(mmVM_CONTEXT1_CNTL, tmp);
1235                 break;
1236         default:
1237                 break;
1238         }
1239 
1240         return 0;
1241 }
1242 
1243 static int gmc_v7_0_process_interrupt(struct amdgpu_device *adev,
1244                                       struct amdgpu_irq_src *source,
1245                                       struct amdgpu_iv_entry *entry)
1246 {
1247         u32 addr, status, mc_client, vmid;
1248 
1249         addr = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_ADDR);
1250         status = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_STATUS);
1251         mc_client = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_MCCLIENT);
1252         /* reset addr and status */
1253         WREG32_P(mmVM_CONTEXT1_CNTL2, 1, ~1);
1254 
1255         if (!addr && !status)
1256                 return 0;
1257 
1258         if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_FIRST)
1259                 gmc_v7_0_set_fault_enable_default(adev, false);
1260 
1261         if (printk_ratelimit()) {
1262                 dev_err(adev->dev, "GPU fault detected: %d 0x%08x\n",
1263                         entry->src_id, entry->src_data[0]);
1264                 dev_err(adev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_ADDR   0x%08X\n",
1265                         addr);
1266                 dev_err(adev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n",
1267                         status);
1268                 gmc_v7_0_vm_decode_fault(adev, status, addr, mc_client,
1269                                          entry->pasid);
1270         }
1271 
1272         vmid = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
1273                              VMID);
1274         if (amdgpu_amdkfd_is_kfd_vmid(adev, vmid)
1275                 && !atomic_read(&adev->gmc.vm_fault_info_updated)) {
1276                 struct kfd_vm_fault_info *info = adev->gmc.vm_fault_info;
1277                 u32 protections = REG_GET_FIELD(status,
1278                                         VM_CONTEXT1_PROTECTION_FAULT_STATUS,
1279                                         PROTECTIONS);
1280 
1281                 info->vmid = vmid;
1282                 info->mc_id = REG_GET_FIELD(status,
1283                                             VM_CONTEXT1_PROTECTION_FAULT_STATUS,
1284                                             MEMORY_CLIENT_ID);
1285                 info->status = status;
1286                 info->page_addr = addr;
1287                 info->prot_valid = protections & 0x7 ? true : false;
1288                 info->prot_read = protections & 0x8 ? true : false;
1289                 info->prot_write = protections & 0x10 ? true : false;
1290                 info->prot_exec = protections & 0x20 ? true : false;
1291                 mb();
1292                 atomic_set(&adev->gmc.vm_fault_info_updated, 1);
1293         }
1294 
1295         return 0;
1296 }
1297 
1298 static int gmc_v7_0_set_clockgating_state(void *handle,
1299                                           enum amd_clockgating_state state)
1300 {
1301         bool gate = false;
1302         struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1303 
1304         if (state == AMD_CG_STATE_GATE)
1305                 gate = true;
1306 
1307         if (!(adev->flags & AMD_IS_APU)) {
1308                 gmc_v7_0_enable_mc_mgcg(adev, gate);
1309                 gmc_v7_0_enable_mc_ls(adev, gate);
1310         }
1311         gmc_v7_0_enable_bif_mgls(adev, gate);
1312         gmc_v7_0_enable_hdp_mgcg(adev, gate);
1313         gmc_v7_0_enable_hdp_ls(adev, gate);
1314 
1315         return 0;
1316 }
1317 
1318 static int gmc_v7_0_set_powergating_state(void *handle,
1319                                           enum amd_powergating_state state)
1320 {
1321         return 0;
1322 }
1323 
1324 static const struct amd_ip_funcs gmc_v7_0_ip_funcs = {
1325         .name = "gmc_v7_0",
1326         .early_init = gmc_v7_0_early_init,
1327         .late_init = gmc_v7_0_late_init,
1328         .sw_init = gmc_v7_0_sw_init,
1329         .sw_fini = gmc_v7_0_sw_fini,
1330         .hw_init = gmc_v7_0_hw_init,
1331         .hw_fini = gmc_v7_0_hw_fini,
1332         .suspend = gmc_v7_0_suspend,
1333         .resume = gmc_v7_0_resume,
1334         .is_idle = gmc_v7_0_is_idle,
1335         .wait_for_idle = gmc_v7_0_wait_for_idle,
1336         .soft_reset = gmc_v7_0_soft_reset,
1337         .set_clockgating_state = gmc_v7_0_set_clockgating_state,
1338         .set_powergating_state = gmc_v7_0_set_powergating_state,
1339 };
1340 
1341 static const struct amdgpu_gmc_funcs gmc_v7_0_gmc_funcs = {
1342         .flush_gpu_tlb = gmc_v7_0_flush_gpu_tlb,
1343         .emit_flush_gpu_tlb = gmc_v7_0_emit_flush_gpu_tlb,
1344         .emit_pasid_mapping = gmc_v7_0_emit_pasid_mapping,
1345         .set_prt = gmc_v7_0_set_prt,
1346         .get_vm_pte_flags = gmc_v7_0_get_vm_pte_flags,
1347         .get_vm_pde = gmc_v7_0_get_vm_pde
1348 };
1349 
1350 static const struct amdgpu_irq_src_funcs gmc_v7_0_irq_funcs = {
1351         .set = gmc_v7_0_vm_fault_interrupt_state,
1352         .process = gmc_v7_0_process_interrupt,
1353 };
1354 
1355 static void gmc_v7_0_set_gmc_funcs(struct amdgpu_device *adev)
1356 {
1357         adev->gmc.gmc_funcs = &gmc_v7_0_gmc_funcs;
1358 }
1359 
1360 static void gmc_v7_0_set_irq_funcs(struct amdgpu_device *adev)
1361 {
1362         adev->gmc.vm_fault.num_types = 1;
1363         adev->gmc.vm_fault.funcs = &gmc_v7_0_irq_funcs;
1364 }
1365 
1366 const struct amdgpu_ip_block_version gmc_v7_0_ip_block =
1367 {
1368         .type = AMD_IP_BLOCK_TYPE_GMC,
1369         .major = 7,
1370         .minor = 0,
1371         .rev = 0,
1372         .funcs = &gmc_v7_0_ip_funcs,
1373 };
1374 
1375 const struct amdgpu_ip_block_version gmc_v7_4_ip_block =
1376 {
1377         .type = AMD_IP_BLOCK_TYPE_GMC,
1378         .major = 7,
1379         .minor = 4,
1380         .rev = 0,
1381         .funcs = &gmc_v7_0_ip_funcs,
1382 };
/* [<][>][^][v][top][bottom][index][help] */
root/drivers/gpu/drm/amd/amdgpu/gmc_v7_0.c

DEFINITIONS
