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v6.8
   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
  53static void gmc_v7_0_set_gmc_funcs(struct amdgpu_device *adev);
  54static void gmc_v7_0_set_irq_funcs(struct amdgpu_device *adev);
  55static int gmc_v7_0_wait_for_idle(void *handle);
  56
  57MODULE_FIRMWARE("amdgpu/bonaire_mc.bin");
  58MODULE_FIRMWARE("amdgpu/hawaii_mc.bin");
  59MODULE_FIRMWARE("amdgpu/topaz_mc.bin");
  60
  61static const u32 golden_settings_iceland_a11[] = {
 
  62	mmVM_PRT_APERTURE0_LOW_ADDR, 0x0fffffff, 0x0fffffff,
  63	mmVM_PRT_APERTURE1_LOW_ADDR, 0x0fffffff, 0x0fffffff,
  64	mmVM_PRT_APERTURE2_LOW_ADDR, 0x0fffffff, 0x0fffffff,
  65	mmVM_PRT_APERTURE3_LOW_ADDR, 0x0fffffff, 0x0fffffff
  66};
  67
  68static const u32 iceland_mgcg_cgcg_init[] = {
 
  69	mmMC_MEM_POWER_LS, 0xffffffff, 0x00000104
  70};
  71
  72static void gmc_v7_0_init_golden_registers(struct amdgpu_device *adev)
  73{
  74	switch (adev->asic_type) {
  75	case CHIP_TOPAZ:
  76		amdgpu_device_program_register_sequence(adev,
  77							iceland_mgcg_cgcg_init,
  78							ARRAY_SIZE(iceland_mgcg_cgcg_init));
  79		amdgpu_device_program_register_sequence(adev,
  80							golden_settings_iceland_a11,
  81							ARRAY_SIZE(golden_settings_iceland_a11));
  82		break;
  83	default:
  84		break;
  85	}
  86}
  87
  88static void gmc_v7_0_mc_stop(struct amdgpu_device *adev)
  89{
  90	u32 blackout;
  91
  92	gmc_v7_0_wait_for_idle((void *)adev);
  93
  94	blackout = RREG32(mmMC_SHARED_BLACKOUT_CNTL);
  95	if (REG_GET_FIELD(blackout, MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE) != 1) {
  96		/* Block CPU access */
  97		WREG32(mmBIF_FB_EN, 0);
  98		/* blackout the MC */
  99		blackout = REG_SET_FIELD(blackout,
 100					 MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE, 0);
 101		WREG32(mmMC_SHARED_BLACKOUT_CNTL, blackout | 1);
 102	}
 103	/* wait for the MC to settle */
 104	udelay(100);
 105}
 106
 107static void gmc_v7_0_mc_resume(struct amdgpu_device *adev)
 108{
 109	u32 tmp;
 110
 111	/* unblackout the MC */
 112	tmp = RREG32(mmMC_SHARED_BLACKOUT_CNTL);
 113	tmp = REG_SET_FIELD(tmp, MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE, 0);
 114	WREG32(mmMC_SHARED_BLACKOUT_CNTL, tmp);
 115	/* allow CPU access */
 116	tmp = REG_SET_FIELD(0, BIF_FB_EN, FB_READ_EN, 1);
 117	tmp = REG_SET_FIELD(tmp, BIF_FB_EN, FB_WRITE_EN, 1);
 118	WREG32(mmBIF_FB_EN, tmp);
 119}
 120
 121/**
 122 * gmc_v7_0_init_microcode - load ucode images from disk
 123 *
 124 * @adev: amdgpu_device pointer
 125 *
 126 * Use the firmware interface to load the ucode images into
 127 * the driver (not loaded into hw).
 128 * Returns 0 on success, error on failure.
 129 */
 130static int gmc_v7_0_init_microcode(struct amdgpu_device *adev)
 131{
 132	const char *chip_name;
 133	char fw_name[30];
 134	int err;
 135
 136	DRM_DEBUG("\n");
 137
 138	switch (adev->asic_type) {
 139	case CHIP_BONAIRE:
 140		chip_name = "bonaire";
 141		break;
 142	case CHIP_HAWAII:
 143		chip_name = "hawaii";
 144		break;
 145	case CHIP_TOPAZ:
 146		chip_name = "topaz";
 147		break;
 148	case CHIP_KAVERI:
 149	case CHIP_KABINI:
 150	case CHIP_MULLINS:
 151		return 0;
 152	default:
 153		return -EINVAL;
 154	}
 155
 156	snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_mc.bin", chip_name);
 157
 158	err = amdgpu_ucode_request(adev, &adev->gmc.fw, fw_name);
 
 
 
 
 
 159	if (err) {
 160		pr_err("cik_mc: Failed to load firmware \"%s\"\n", fw_name);
 161		amdgpu_ucode_release(&adev->gmc.fw);
 
 162	}
 163	return err;
 164}
 165
 166/**
 167 * gmc_v7_0_mc_load_microcode - load MC ucode into the hw
 168 *
 169 * @adev: amdgpu_device pointer
 170 *
 171 * Load the GDDR MC ucode into the hw (CIK).
 172 * Returns 0 on success, error on failure.
 173 */
 174static int gmc_v7_0_mc_load_microcode(struct amdgpu_device *adev)
 175{
 176	const struct mc_firmware_header_v1_0 *hdr;
 177	const __le32 *fw_data = NULL;
 178	const __le32 *io_mc_regs = NULL;
 179	u32 running;
 180	int i, ucode_size, regs_size;
 181
 182	if (!adev->gmc.fw)
 183		return -EINVAL;
 184
 185	hdr = (const struct mc_firmware_header_v1_0 *)adev->gmc.fw->data;
 186	amdgpu_ucode_print_mc_hdr(&hdr->header);
 187
 188	adev->gmc.fw_version = le32_to_cpu(hdr->header.ucode_version);
 189	regs_size = le32_to_cpu(hdr->io_debug_size_bytes) / (4 * 2);
 190	io_mc_regs = (const __le32 *)
 191		(adev->gmc.fw->data + le32_to_cpu(hdr->io_debug_array_offset_bytes));
 192	ucode_size = le32_to_cpu(hdr->header.ucode_size_bytes) / 4;
 193	fw_data = (const __le32 *)
 194		(adev->gmc.fw->data + le32_to_cpu(hdr->header.ucode_array_offset_bytes));
 195
 196	running = REG_GET_FIELD(RREG32(mmMC_SEQ_SUP_CNTL), MC_SEQ_SUP_CNTL, RUN);
 197
 198	if (running == 0) {
 199		/* reset the engine and set to writable */
 200		WREG32(mmMC_SEQ_SUP_CNTL, 0x00000008);
 201		WREG32(mmMC_SEQ_SUP_CNTL, 0x00000010);
 202
 203		/* load mc io regs */
 204		for (i = 0; i < regs_size; i++) {
 205			WREG32(mmMC_SEQ_IO_DEBUG_INDEX, le32_to_cpup(io_mc_regs++));
 206			WREG32(mmMC_SEQ_IO_DEBUG_DATA, le32_to_cpup(io_mc_regs++));
 207		}
 208		/* load the MC ucode */
 209		for (i = 0; i < ucode_size; i++)
 210			WREG32(mmMC_SEQ_SUP_PGM, le32_to_cpup(fw_data++));
 211
 212		/* put the engine back into the active state */
 213		WREG32(mmMC_SEQ_SUP_CNTL, 0x00000008);
 214		WREG32(mmMC_SEQ_SUP_CNTL, 0x00000004);
 215		WREG32(mmMC_SEQ_SUP_CNTL, 0x00000001);
 216
 217		/* wait for training to complete */
 218		for (i = 0; i < adev->usec_timeout; i++) {
 219			if (REG_GET_FIELD(RREG32(mmMC_SEQ_TRAIN_WAKEUP_CNTL),
 220					  MC_SEQ_TRAIN_WAKEUP_CNTL, TRAIN_DONE_D0))
 221				break;
 222			udelay(1);
 223		}
 224		for (i = 0; i < adev->usec_timeout; i++) {
 225			if (REG_GET_FIELD(RREG32(mmMC_SEQ_TRAIN_WAKEUP_CNTL),
 226					  MC_SEQ_TRAIN_WAKEUP_CNTL, TRAIN_DONE_D1))
 227				break;
 228			udelay(1);
 229		}
 230	}
 231
 232	return 0;
 233}
 234
 235static void gmc_v7_0_vram_gtt_location(struct amdgpu_device *adev,
 236				       struct amdgpu_gmc *mc)
 237{
 238	u64 base = RREG32(mmMC_VM_FB_LOCATION) & 0xFFFF;
 239
 240	base <<= 24;
 241
 242	amdgpu_gmc_set_agp_default(adev, mc);
 243	amdgpu_gmc_vram_location(adev, mc, base);
 244	amdgpu_gmc_gart_location(adev, mc, AMDGPU_GART_PLACEMENT_BEST_FIT);
 245}
 246
 247/**
 248 * gmc_v7_0_mc_program - program the GPU memory controller
 249 *
 250 * @adev: amdgpu_device pointer
 251 *
 252 * Set the location of vram, gart, and AGP in the GPU's
 253 * physical address space (CIK).
 254 */
 255static void gmc_v7_0_mc_program(struct amdgpu_device *adev)
 256{
 257	u32 tmp;
 258	int i, j;
 259
 260	/* Initialize HDP */
 261	for (i = 0, j = 0; i < 32; i++, j += 0x6) {
 262		WREG32((0xb05 + j), 0x00000000);
 263		WREG32((0xb06 + j), 0x00000000);
 264		WREG32((0xb07 + j), 0x00000000);
 265		WREG32((0xb08 + j), 0x00000000);
 266		WREG32((0xb09 + j), 0x00000000);
 267	}
 268	WREG32(mmHDP_REG_COHERENCY_FLUSH_CNTL, 0);
 269
 270	if (gmc_v7_0_wait_for_idle((void *)adev))
 271		dev_warn(adev->dev, "Wait for MC idle timedout !\n");
 272
 273	if (adev->mode_info.num_crtc) {
 274		/* Lockout access through VGA aperture*/
 275		tmp = RREG32(mmVGA_HDP_CONTROL);
 276		tmp = REG_SET_FIELD(tmp, VGA_HDP_CONTROL, VGA_MEMORY_DISABLE, 1);
 277		WREG32(mmVGA_HDP_CONTROL, tmp);
 278
 279		/* disable VGA render */
 280		tmp = RREG32(mmVGA_RENDER_CONTROL);
 281		tmp = REG_SET_FIELD(tmp, VGA_RENDER_CONTROL, VGA_VSTATUS_CNTL, 0);
 282		WREG32(mmVGA_RENDER_CONTROL, tmp);
 283	}
 284	/* Update configuration */
 285	WREG32(mmMC_VM_SYSTEM_APERTURE_LOW_ADDR,
 286	       adev->gmc.vram_start >> 12);
 287	WREG32(mmMC_VM_SYSTEM_APERTURE_HIGH_ADDR,
 288	       adev->gmc.vram_end >> 12);
 289	WREG32(mmMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR,
 290	       adev->mem_scratch.gpu_addr >> 12);
 291	WREG32(mmMC_VM_AGP_BASE, 0);
 292	WREG32(mmMC_VM_AGP_TOP, adev->gmc.agp_end >> 22);
 293	WREG32(mmMC_VM_AGP_BOT, adev->gmc.agp_start >> 22);
 294	if (gmc_v7_0_wait_for_idle((void *)adev))
 295		dev_warn(adev->dev, "Wait for MC idle timedout !\n");
 
 296
 297	WREG32(mmBIF_FB_EN, BIF_FB_EN__FB_READ_EN_MASK | BIF_FB_EN__FB_WRITE_EN_MASK);
 298
 299	tmp = RREG32(mmHDP_MISC_CNTL);
 300	tmp = REG_SET_FIELD(tmp, HDP_MISC_CNTL, FLUSH_INVALIDATE_CACHE, 0);
 301	WREG32(mmHDP_MISC_CNTL, tmp);
 302
 303	tmp = RREG32(mmHDP_HOST_PATH_CNTL);
 304	WREG32(mmHDP_HOST_PATH_CNTL, tmp);
 305}
 306
 307/**
 308 * gmc_v7_0_mc_init - initialize the memory controller driver params
 309 *
 310 * @adev: amdgpu_device pointer
 311 *
 312 * Look up the amount of vram, vram width, and decide how to place
 313 * vram and gart within the GPU's physical address space (CIK).
 314 * Returns 0 for success.
 315 */
 316static int gmc_v7_0_mc_init(struct amdgpu_device *adev)
 317{
 318	int r;
 319
 320	adev->gmc.vram_width = amdgpu_atombios_get_vram_width(adev);
 321	if (!adev->gmc.vram_width) {
 322		u32 tmp;
 323		int chansize, numchan;
 324
 325		/* Get VRAM informations */
 326		tmp = RREG32(mmMC_ARB_RAMCFG);
 327		if (REG_GET_FIELD(tmp, MC_ARB_RAMCFG, CHANSIZE))
 328			chansize = 64;
 329		else
 330			chansize = 32;
 331
 332		tmp = RREG32(mmMC_SHARED_CHMAP);
 333		switch (REG_GET_FIELD(tmp, MC_SHARED_CHMAP, NOOFCHAN)) {
 334		case 0:
 335		default:
 336			numchan = 1;
 337			break;
 338		case 1:
 339			numchan = 2;
 340			break;
 341		case 2:
 342			numchan = 4;
 343			break;
 344		case 3:
 345			numchan = 8;
 346			break;
 347		case 4:
 348			numchan = 3;
 349			break;
 350		case 5:
 351			numchan = 6;
 352			break;
 353		case 6:
 354			numchan = 10;
 355			break;
 356		case 7:
 357			numchan = 12;
 358			break;
 359		case 8:
 360			numchan = 16;
 361			break;
 362		}
 363		adev->gmc.vram_width = numchan * chansize;
 364	}
 365	/* size in MB on si */
 366	adev->gmc.mc_vram_size = RREG32(mmCONFIG_MEMSIZE) * 1024ULL * 1024ULL;
 367	adev->gmc.real_vram_size = RREG32(mmCONFIG_MEMSIZE) * 1024ULL * 1024ULL;
 368
 369	if (!(adev->flags & AMD_IS_APU)) {
 370		r = amdgpu_device_resize_fb_bar(adev);
 371		if (r)
 372			return r;
 373	}
 374	adev->gmc.aper_base = pci_resource_start(adev->pdev, 0);
 375	adev->gmc.aper_size = pci_resource_len(adev->pdev, 0);
 376
 377#ifdef CONFIG_X86_64
 378	if ((adev->flags & AMD_IS_APU) &&
 379	    adev->gmc.real_vram_size > adev->gmc.aper_size &&
 380	    !amdgpu_passthrough(adev)) {
 381		adev->gmc.aper_base = ((u64)RREG32(mmMC_VM_FB_OFFSET)) << 22;
 382		adev->gmc.aper_size = adev->gmc.real_vram_size;
 383	}
 384#endif
 385
 
 386	adev->gmc.visible_vram_size = adev->gmc.aper_size;
 
 
 387
 388	/* set the gart size */
 389	if (amdgpu_gart_size == -1) {
 390		switch (adev->asic_type) {
 391		case CHIP_TOPAZ:     /* no MM engines */
 392		default:
 393			adev->gmc.gart_size = 256ULL << 20;
 394			break;
 395#ifdef CONFIG_DRM_AMDGPU_CIK
 396		case CHIP_BONAIRE: /* UVD, VCE do not support GPUVM */
 397		case CHIP_HAWAII:  /* UVD, VCE do not support GPUVM */
 398		case CHIP_KAVERI:  /* UVD, VCE do not support GPUVM */
 399		case CHIP_KABINI:  /* UVD, VCE do not support GPUVM */
 400		case CHIP_MULLINS: /* UVD, VCE do not support GPUVM */
 401			adev->gmc.gart_size = 1024ULL << 20;
 402			break;
 403#endif
 404		}
 405	} else {
 406		adev->gmc.gart_size = (u64)amdgpu_gart_size << 20;
 407	}
 408
 409	adev->gmc.gart_size += adev->pm.smu_prv_buffer_size;
 410	gmc_v7_0_vram_gtt_location(adev, &adev->gmc);
 411
 412	return 0;
 413}
 414
 415/**
 416 * gmc_v7_0_flush_gpu_tlb_pasid - tlb flush via pasid
 417 *
 418 * @adev: amdgpu_device pointer
 419 * @pasid: pasid to be flush
 420 * @flush_type: type of flush
 421 * @all_hub: flush all hubs
 422 * @inst: is used to select which instance of KIQ to use for the invalidation
 423 *
 424 * Flush the TLB for the requested pasid.
 425 */
 426static void gmc_v7_0_flush_gpu_tlb_pasid(struct amdgpu_device *adev,
 427					 uint16_t pasid, uint32_t flush_type,
 428					 bool all_hub, uint32_t inst)
 429{
 430	u32 mask = 0x0;
 431	int vmid;
 
 
 
 
 432
 433	for (vmid = 1; vmid < 16; vmid++) {
 434		u32 tmp = RREG32(mmATC_VMID0_PASID_MAPPING + vmid);
 435
 
 436		if ((tmp & ATC_VMID0_PASID_MAPPING__VALID_MASK) &&
 437		    (tmp & ATC_VMID0_PASID_MAPPING__PASID_MASK) == pasid)
 438			mask |= 1 << vmid;
 
 
 
 439	}
 440
 441	WREG32(mmVM_INVALIDATE_REQUEST, mask);
 442	RREG32(mmVM_INVALIDATE_RESPONSE);
 443}
 444
 445/*
 446 * GART
 447 * VMID 0 is the physical GPU addresses as used by the kernel.
 448 * VMIDs 1-15 are used for userspace clients and are handled
 449 * by the amdgpu vm/hsa code.
 450 */
 451
 452/**
 453 * gmc_v7_0_flush_gpu_tlb - gart tlb flush callback
 454 *
 455 * @adev: amdgpu_device pointer
 456 * @vmid: vm instance to flush
 457 * @vmhub: which hub to flush
 458 * @flush_type: type of flush
 459 * *
 460 * Flush the TLB for the requested page table (CIK).
 461 */
 462static void gmc_v7_0_flush_gpu_tlb(struct amdgpu_device *adev, uint32_t vmid,
 463					uint32_t vmhub, uint32_t flush_type)
 464{
 465	/* bits 0-15 are the VM contexts0-15 */
 466	WREG32(mmVM_INVALIDATE_REQUEST, 1 << vmid);
 467}
 468
 469static uint64_t gmc_v7_0_emit_flush_gpu_tlb(struct amdgpu_ring *ring,
 470					    unsigned int vmid, uint64_t pd_addr)
 471{
 472	uint32_t reg;
 473
 474	if (vmid < 8)
 475		reg = mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + vmid;
 476	else
 477		reg = mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + vmid - 8;
 478	amdgpu_ring_emit_wreg(ring, reg, pd_addr >> 12);
 479
 480	/* bits 0-15 are the VM contexts0-15 */
 481	amdgpu_ring_emit_wreg(ring, mmVM_INVALIDATE_REQUEST, 1 << vmid);
 482
 483	return pd_addr;
 484}
 485
 486static void gmc_v7_0_emit_pasid_mapping(struct amdgpu_ring *ring, unsigned int vmid,
 487					unsigned int pasid)
 488{
 489	amdgpu_ring_emit_wreg(ring, mmIH_VMID_0_LUT + vmid, pasid);
 490}
 491
 492static void gmc_v7_0_get_vm_pde(struct amdgpu_device *adev, int level,
 493				uint64_t *addr, uint64_t *flags)
 494{
 495	BUG_ON(*addr & 0xFFFFFF0000000FFFULL);
 496}
 497
 498static void gmc_v7_0_get_vm_pte(struct amdgpu_device *adev,
 499				struct amdgpu_bo_va_mapping *mapping,
 500				uint64_t *flags)
 501{
 502	*flags &= ~AMDGPU_PTE_EXECUTABLE;
 503	*flags &= ~AMDGPU_PTE_PRT;
 504}
 505
 506/**
 507 * gmc_v7_0_set_fault_enable_default - update VM fault handling
 508 *
 509 * @adev: amdgpu_device pointer
 510 * @value: true redirects VM faults to the default page
 511 */
 512static void gmc_v7_0_set_fault_enable_default(struct amdgpu_device *adev,
 513					      bool value)
 514{
 515	u32 tmp;
 516
 517	tmp = RREG32(mmVM_CONTEXT1_CNTL);
 518	tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 519			    RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 520	tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 521			    DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 522	tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 523			    PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 524	tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 525			    VALID_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 526	tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 527			    READ_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 528	tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 529			    WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 530	WREG32(mmVM_CONTEXT1_CNTL, tmp);
 531}
 532
 533/**
 534 * gmc_v7_0_set_prt - set PRT VM fault
 535 *
 536 * @adev: amdgpu_device pointer
 537 * @enable: enable/disable VM fault handling for PRT
 538 */
 539static void gmc_v7_0_set_prt(struct amdgpu_device *adev, bool enable)
 540{
 541	uint32_t tmp;
 542
 543	if (enable && !adev->gmc.prt_warning) {
 544		dev_warn(adev->dev, "Disabling VM faults because of PRT request!\n");
 545		adev->gmc.prt_warning = true;
 546	}
 547
 548	tmp = RREG32(mmVM_PRT_CNTL);
 549	tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 550			    CB_DISABLE_READ_FAULT_ON_UNMAPPED_ACCESS, enable);
 551	tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 552			    CB_DISABLE_WRITE_FAULT_ON_UNMAPPED_ACCESS, enable);
 553	tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 554			    TC_DISABLE_READ_FAULT_ON_UNMAPPED_ACCESS, enable);
 555	tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 556			    TC_DISABLE_WRITE_FAULT_ON_UNMAPPED_ACCESS, enable);
 557	tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 558			    L2_CACHE_STORE_INVALID_ENTRIES, enable);
 559	tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 560			    L1_TLB_STORE_INVALID_ENTRIES, enable);
 561	tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 562			    MASK_PDE0_FAULT, enable);
 563	WREG32(mmVM_PRT_CNTL, tmp);
 564
 565	if (enable) {
 566		uint32_t low = AMDGPU_VA_RESERVED_SIZE >> AMDGPU_GPU_PAGE_SHIFT;
 567		uint32_t high = adev->vm_manager.max_pfn -
 568			(AMDGPU_VA_RESERVED_SIZE >> AMDGPU_GPU_PAGE_SHIFT);
 569
 570		WREG32(mmVM_PRT_APERTURE0_LOW_ADDR, low);
 571		WREG32(mmVM_PRT_APERTURE1_LOW_ADDR, low);
 572		WREG32(mmVM_PRT_APERTURE2_LOW_ADDR, low);
 573		WREG32(mmVM_PRT_APERTURE3_LOW_ADDR, low);
 574		WREG32(mmVM_PRT_APERTURE0_HIGH_ADDR, high);
 575		WREG32(mmVM_PRT_APERTURE1_HIGH_ADDR, high);
 576		WREG32(mmVM_PRT_APERTURE2_HIGH_ADDR, high);
 577		WREG32(mmVM_PRT_APERTURE3_HIGH_ADDR, high);
 578	} else {
 579		WREG32(mmVM_PRT_APERTURE0_LOW_ADDR, 0xfffffff);
 580		WREG32(mmVM_PRT_APERTURE1_LOW_ADDR, 0xfffffff);
 581		WREG32(mmVM_PRT_APERTURE2_LOW_ADDR, 0xfffffff);
 582		WREG32(mmVM_PRT_APERTURE3_LOW_ADDR, 0xfffffff);
 583		WREG32(mmVM_PRT_APERTURE0_HIGH_ADDR, 0x0);
 584		WREG32(mmVM_PRT_APERTURE1_HIGH_ADDR, 0x0);
 585		WREG32(mmVM_PRT_APERTURE2_HIGH_ADDR, 0x0);
 586		WREG32(mmVM_PRT_APERTURE3_HIGH_ADDR, 0x0);
 587	}
 588}
 589
 590/**
 591 * gmc_v7_0_gart_enable - gart enable
 592 *
 593 * @adev: amdgpu_device pointer
 594 *
 595 * This sets up the TLBs, programs the page tables for VMID0,
 596 * sets up the hw for VMIDs 1-15 which are allocated on
 597 * demand, and sets up the global locations for the LDS, GDS,
 598 * and GPUVM for FSA64 clients (CIK).
 599 * Returns 0 for success, errors for failure.
 600 */
 601static int gmc_v7_0_gart_enable(struct amdgpu_device *adev)
 602{
 603	uint64_t table_addr;
 
 604	u32 tmp, field;
 605	int i;
 606
 607	if (adev->gart.bo == NULL) {
 608		dev_err(adev->dev, "No VRAM object for PCIE GART.\n");
 609		return -EINVAL;
 610	}
 611	amdgpu_gtt_mgr_recover(&adev->mman.gtt_mgr);
 
 
 
 612	table_addr = amdgpu_bo_gpu_offset(adev->gart.bo);
 613
 614	/* Setup TLB control */
 615	tmp = RREG32(mmMC_VM_MX_L1_TLB_CNTL);
 616	tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 1);
 617	tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_FRAGMENT_PROCESSING, 1);
 618	tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, SYSTEM_ACCESS_MODE, 3);
 619	tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_ADVANCED_DRIVER_MODEL, 1);
 620	tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, SYSTEM_APERTURE_UNMAPPED_ACCESS, 0);
 621	WREG32(mmMC_VM_MX_L1_TLB_CNTL, tmp);
 622	/* Setup L2 cache */
 623	tmp = RREG32(mmVM_L2_CNTL);
 624	tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_CACHE, 1);
 625	tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_FRAGMENT_PROCESSING, 1);
 626	tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE, 1);
 627	tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_PDE0_CACHE_LRU_UPDATE_BY_WRITE, 1);
 628	tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, EFFECTIVE_L2_QUEUE_SIZE, 7);
 629	tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, CONTEXT1_IDENTITY_ACCESS_MODE, 1);
 630	tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_DEFAULT_PAGE_OUT_TO_SYSTEM_MEMORY, 1);
 631	WREG32(mmVM_L2_CNTL, tmp);
 632	tmp = REG_SET_FIELD(0, VM_L2_CNTL2, INVALIDATE_ALL_L1_TLBS, 1);
 633	tmp = REG_SET_FIELD(tmp, VM_L2_CNTL2, INVALIDATE_L2_CACHE, 1);
 634	WREG32(mmVM_L2_CNTL2, tmp);
 635
 636	field = adev->vm_manager.fragment_size;
 637	tmp = RREG32(mmVM_L2_CNTL3);
 638	tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, L2_CACHE_BIGK_ASSOCIATIVITY, 1);
 639	tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, BANK_SELECT, field);
 640	tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, L2_CACHE_BIGK_FRAGMENT_SIZE, field);
 641	WREG32(mmVM_L2_CNTL3, tmp);
 642	/* setup context0 */
 643	WREG32(mmVM_CONTEXT0_PAGE_TABLE_START_ADDR, adev->gmc.gart_start >> 12);
 644	WREG32(mmVM_CONTEXT0_PAGE_TABLE_END_ADDR, adev->gmc.gart_end >> 12);
 645	WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR, table_addr >> 12);
 646	WREG32(mmVM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR,
 647			(u32)(adev->dummy_page_addr >> 12));
 648	WREG32(mmVM_CONTEXT0_CNTL2, 0);
 649	tmp = RREG32(mmVM_CONTEXT0_CNTL);
 650	tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, ENABLE_CONTEXT, 1);
 651	tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, PAGE_TABLE_DEPTH, 0);
 652	tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 653	WREG32(mmVM_CONTEXT0_CNTL, tmp);
 654
 655	WREG32(0x575, 0);
 656	WREG32(0x576, 0);
 657	WREG32(0x577, 0);
 658
 659	/* empty context1-15 */
 660	/* FIXME start with 4G, once using 2 level pt switch to full
 661	 * vm size space
 662	 */
 663	/* set vm size, must be a multiple of 4 */
 664	WREG32(mmVM_CONTEXT1_PAGE_TABLE_START_ADDR, 0);
 665	WREG32(mmVM_CONTEXT1_PAGE_TABLE_END_ADDR, adev->vm_manager.max_pfn - 1);
 666	for (i = 1; i < AMDGPU_NUM_VMID; i++) {
 667		if (i < 8)
 668			WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + i,
 669			       table_addr >> 12);
 670		else
 671			WREG32(mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + i - 8,
 672			       table_addr >> 12);
 673	}
 674
 675	/* enable context1-15 */
 676	WREG32(mmVM_CONTEXT1_PROTECTION_FAULT_DEFAULT_ADDR,
 677	       (u32)(adev->dummy_page_addr >> 12));
 678	WREG32(mmVM_CONTEXT1_CNTL2, 4);
 679	tmp = RREG32(mmVM_CONTEXT1_CNTL);
 680	tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, ENABLE_CONTEXT, 1);
 681	tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, PAGE_TABLE_DEPTH, 1);
 682	tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, PAGE_TABLE_BLOCK_SIZE,
 683			    adev->vm_manager.block_size - 9);
 684	WREG32(mmVM_CONTEXT1_CNTL, tmp);
 685	if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_ALWAYS)
 686		gmc_v7_0_set_fault_enable_default(adev, false);
 687	else
 688		gmc_v7_0_set_fault_enable_default(adev, true);
 689
 690	if (adev->asic_type == CHIP_KAVERI) {
 691		tmp = RREG32(mmCHUB_CONTROL);
 692		tmp &= ~BYPASS_VM;
 693		WREG32(mmCHUB_CONTROL, tmp);
 694	}
 695
 696	gmc_v7_0_flush_gpu_tlb(adev, 0, 0, 0);
 697	DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n",
 698		 (unsigned int)(adev->gmc.gart_size >> 20),
 699		 (unsigned long long)table_addr);
 
 700	return 0;
 701}
 702
 703static int gmc_v7_0_gart_init(struct amdgpu_device *adev)
 704{
 705	int r;
 706
 707	if (adev->gart.bo) {
 708		WARN(1, "R600 PCIE GART already initialized\n");
 709		return 0;
 710	}
 711	/* Initialize common gart structure */
 712	r = amdgpu_gart_init(adev);
 713	if (r)
 714		return r;
 715	adev->gart.table_size = adev->gart.num_gpu_pages * 8;
 716	adev->gart.gart_pte_flags = 0;
 717	return amdgpu_gart_table_vram_alloc(adev);
 718}
 719
 720/**
 721 * gmc_v7_0_gart_disable - gart disable
 722 *
 723 * @adev: amdgpu_device pointer
 724 *
 725 * This disables all VM page table (CIK).
 726 */
 727static void gmc_v7_0_gart_disable(struct amdgpu_device *adev)
 728{
 729	u32 tmp;
 730
 731	/* Disable all tables */
 732	WREG32(mmVM_CONTEXT0_CNTL, 0);
 733	WREG32(mmVM_CONTEXT1_CNTL, 0);
 734	/* Setup TLB control */
 735	tmp = RREG32(mmMC_VM_MX_L1_TLB_CNTL);
 736	tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 0);
 737	tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_FRAGMENT_PROCESSING, 0);
 738	tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_ADVANCED_DRIVER_MODEL, 0);
 739	WREG32(mmMC_VM_MX_L1_TLB_CNTL, tmp);
 740	/* Setup L2 cache */
 741	tmp = RREG32(mmVM_L2_CNTL);
 742	tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_CACHE, 0);
 743	WREG32(mmVM_L2_CNTL, tmp);
 744	WREG32(mmVM_L2_CNTL2, 0);
 
 745}
 746
 747/**
 748 * gmc_v7_0_vm_decode_fault - print human readable fault info
 749 *
 750 * @adev: amdgpu_device pointer
 751 * @status: VM_CONTEXT1_PROTECTION_FAULT_STATUS register value
 752 * @addr: VM_CONTEXT1_PROTECTION_FAULT_ADDR register value
 753 * @mc_client: VM_CONTEXT1_PROTECTION_FAULT_MCCLIENT register value
 754 * @pasid: debug logging only - no functional use
 755 *
 756 * Print human readable fault information (CIK).
 757 */
 758static void gmc_v7_0_vm_decode_fault(struct amdgpu_device *adev, u32 status,
 759				     u32 addr, u32 mc_client, unsigned int pasid)
 760{
 761	u32 vmid = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS, VMID);
 762	u32 protections = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
 763					PROTECTIONS);
 764	char block[5] = { mc_client >> 24, (mc_client >> 16) & 0xff,
 765		(mc_client >> 8) & 0xff, mc_client & 0xff, 0 };
 766	u32 mc_id;
 767
 768	mc_id = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
 769			      MEMORY_CLIENT_ID);
 770
 771	dev_err(adev->dev, "VM fault (0x%02x, vmid %d, pasid %d) at page %u, %s from '%s' (0x%08x) (%d)\n",
 772	       protections, vmid, pasid, addr,
 773	       REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
 774			     MEMORY_CLIENT_RW) ?
 775	       "write" : "read", block, mc_client, mc_id);
 776}
 777
 778
 779static const u32 mc_cg_registers[] = {
 780	mmMC_HUB_MISC_HUB_CG,
 781	mmMC_HUB_MISC_SIP_CG,
 782	mmMC_HUB_MISC_VM_CG,
 783	mmMC_XPB_CLK_GAT,
 784	mmATC_MISC_CG,
 785	mmMC_CITF_MISC_WR_CG,
 786	mmMC_CITF_MISC_RD_CG,
 787	mmMC_CITF_MISC_VM_CG,
 788	mmVM_L2_CG,
 789};
 790
 791static const u32 mc_cg_ls_en[] = {
 792	MC_HUB_MISC_HUB_CG__MEM_LS_ENABLE_MASK,
 793	MC_HUB_MISC_SIP_CG__MEM_LS_ENABLE_MASK,
 794	MC_HUB_MISC_VM_CG__MEM_LS_ENABLE_MASK,
 795	MC_XPB_CLK_GAT__MEM_LS_ENABLE_MASK,
 796	ATC_MISC_CG__MEM_LS_ENABLE_MASK,
 797	MC_CITF_MISC_WR_CG__MEM_LS_ENABLE_MASK,
 798	MC_CITF_MISC_RD_CG__MEM_LS_ENABLE_MASK,
 799	MC_CITF_MISC_VM_CG__MEM_LS_ENABLE_MASK,
 800	VM_L2_CG__MEM_LS_ENABLE_MASK,
 801};
 802
 803static const u32 mc_cg_en[] = {
 804	MC_HUB_MISC_HUB_CG__ENABLE_MASK,
 805	MC_HUB_MISC_SIP_CG__ENABLE_MASK,
 806	MC_HUB_MISC_VM_CG__ENABLE_MASK,
 807	MC_XPB_CLK_GAT__ENABLE_MASK,
 808	ATC_MISC_CG__ENABLE_MASK,
 809	MC_CITF_MISC_WR_CG__ENABLE_MASK,
 810	MC_CITF_MISC_RD_CG__ENABLE_MASK,
 811	MC_CITF_MISC_VM_CG__ENABLE_MASK,
 812	VM_L2_CG__ENABLE_MASK,
 813};
 814
 815static void gmc_v7_0_enable_mc_ls(struct amdgpu_device *adev,
 816				  bool enable)
 817{
 818	int i;
 819	u32 orig, data;
 820
 821	for (i = 0; i < ARRAY_SIZE(mc_cg_registers); i++) {
 822		orig = data = RREG32(mc_cg_registers[i]);
 823		if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_LS))
 824			data |= mc_cg_ls_en[i];
 825		else
 826			data &= ~mc_cg_ls_en[i];
 827		if (data != orig)
 828			WREG32(mc_cg_registers[i], data);
 829	}
 830}
 831
 832static void gmc_v7_0_enable_mc_mgcg(struct amdgpu_device *adev,
 833				    bool enable)
 834{
 835	int i;
 836	u32 orig, data;
 837
 838	for (i = 0; i < ARRAY_SIZE(mc_cg_registers); i++) {
 839		orig = data = RREG32(mc_cg_registers[i]);
 840		if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_MGCG))
 841			data |= mc_cg_en[i];
 842		else
 843			data &= ~mc_cg_en[i];
 844		if (data != orig)
 845			WREG32(mc_cg_registers[i], data);
 846	}
 847}
 848
 849static void gmc_v7_0_enable_bif_mgls(struct amdgpu_device *adev,
 850				     bool enable)
 851{
 852	u32 orig, data;
 853
 854	orig = data = RREG32_PCIE(ixPCIE_CNTL2);
 855
 856	if (enable && (adev->cg_flags & AMD_CG_SUPPORT_BIF_LS)) {
 857		data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_LS_EN, 1);
 858		data = REG_SET_FIELD(data, PCIE_CNTL2, MST_MEM_LS_EN, 1);
 859		data = REG_SET_FIELD(data, PCIE_CNTL2, REPLAY_MEM_LS_EN, 1);
 860		data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_AGGRESSIVE_LS_EN, 1);
 861	} else {
 862		data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_LS_EN, 0);
 863		data = REG_SET_FIELD(data, PCIE_CNTL2, MST_MEM_LS_EN, 0);
 864		data = REG_SET_FIELD(data, PCIE_CNTL2, REPLAY_MEM_LS_EN, 0);
 865		data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_AGGRESSIVE_LS_EN, 0);
 866	}
 867
 868	if (orig != data)
 869		WREG32_PCIE(ixPCIE_CNTL2, data);
 870}
 871
 872static void gmc_v7_0_enable_hdp_mgcg(struct amdgpu_device *adev,
 873				     bool enable)
 874{
 875	u32 orig, data;
 876
 877	orig = data = RREG32(mmHDP_HOST_PATH_CNTL);
 878
 879	if (enable && (adev->cg_flags & AMD_CG_SUPPORT_HDP_MGCG))
 880		data = REG_SET_FIELD(data, HDP_HOST_PATH_CNTL, CLOCK_GATING_DIS, 0);
 881	else
 882		data = REG_SET_FIELD(data, HDP_HOST_PATH_CNTL, CLOCK_GATING_DIS, 1);
 883
 884	if (orig != data)
 885		WREG32(mmHDP_HOST_PATH_CNTL, data);
 886}
 887
 888static void gmc_v7_0_enable_hdp_ls(struct amdgpu_device *adev,
 889				   bool enable)
 890{
 891	u32 orig, data;
 892
 893	orig = data = RREG32(mmHDP_MEM_POWER_LS);
 894
 895	if (enable && (adev->cg_flags & AMD_CG_SUPPORT_HDP_LS))
 896		data = REG_SET_FIELD(data, HDP_MEM_POWER_LS, LS_ENABLE, 1);
 897	else
 898		data = REG_SET_FIELD(data, HDP_MEM_POWER_LS, LS_ENABLE, 0);
 899
 900	if (orig != data)
 901		WREG32(mmHDP_MEM_POWER_LS, data);
 902}
 903
 904static int gmc_v7_0_convert_vram_type(int mc_seq_vram_type)
 905{
 906	switch (mc_seq_vram_type) {
 907	case MC_SEQ_MISC0__MT__GDDR1:
 908		return AMDGPU_VRAM_TYPE_GDDR1;
 909	case MC_SEQ_MISC0__MT__DDR2:
 910		return AMDGPU_VRAM_TYPE_DDR2;
 911	case MC_SEQ_MISC0__MT__GDDR3:
 912		return AMDGPU_VRAM_TYPE_GDDR3;
 913	case MC_SEQ_MISC0__MT__GDDR4:
 914		return AMDGPU_VRAM_TYPE_GDDR4;
 915	case MC_SEQ_MISC0__MT__GDDR5:
 916		return AMDGPU_VRAM_TYPE_GDDR5;
 917	case MC_SEQ_MISC0__MT__HBM:
 918		return AMDGPU_VRAM_TYPE_HBM;
 919	case MC_SEQ_MISC0__MT__DDR3:
 920		return AMDGPU_VRAM_TYPE_DDR3;
 921	default:
 922		return AMDGPU_VRAM_TYPE_UNKNOWN;
 923	}
 924}
 925
 926static int gmc_v7_0_early_init(void *handle)
 927{
 928	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 929
 930	gmc_v7_0_set_gmc_funcs(adev);
 931	gmc_v7_0_set_irq_funcs(adev);
 932
 933	adev->gmc.shared_aperture_start = 0x2000000000000000ULL;
 934	adev->gmc.shared_aperture_end =
 935		adev->gmc.shared_aperture_start + (4ULL << 30) - 1;
 936	adev->gmc.private_aperture_start =
 937		adev->gmc.shared_aperture_end + 1;
 938	adev->gmc.private_aperture_end =
 939		adev->gmc.private_aperture_start + (4ULL << 30) - 1;
 940	adev->gmc.noretry_flags = AMDGPU_VM_NORETRY_FLAGS_TF;
 941
 942	return 0;
 943}
 944
 945static int gmc_v7_0_late_init(void *handle)
 946{
 947	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 948
 949	if (amdgpu_vm_fault_stop != AMDGPU_VM_FAULT_STOP_ALWAYS)
 950		return amdgpu_irq_get(adev, &adev->gmc.vm_fault, 0);
 951	else
 952		return 0;
 953}
 954
 955static unsigned int gmc_v7_0_get_vbios_fb_size(struct amdgpu_device *adev)
 956{
 957	u32 d1vga_control = RREG32(mmD1VGA_CONTROL);
 958	unsigned int size;
 959
 960	if (REG_GET_FIELD(d1vga_control, D1VGA_CONTROL, D1VGA_MODE_ENABLE)) {
 961		size = AMDGPU_VBIOS_VGA_ALLOCATION;
 962	} else {
 963		u32 viewport = RREG32(mmVIEWPORT_SIZE);
 964
 965		size = (REG_GET_FIELD(viewport, VIEWPORT_SIZE, VIEWPORT_HEIGHT) *
 966			REG_GET_FIELD(viewport, VIEWPORT_SIZE, VIEWPORT_WIDTH) *
 967			4);
 968	}
 969
 970	return size;
 971}
 972
 973static int gmc_v7_0_sw_init(void *handle)
 974{
 975	int r;
 976	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 977
 978	set_bit(AMDGPU_GFXHUB(0), adev->vmhubs_mask);
 979
 980	if (adev->flags & AMD_IS_APU) {
 981		adev->gmc.vram_type = AMDGPU_VRAM_TYPE_UNKNOWN;
 982	} else {
 983		u32 tmp = RREG32(mmMC_SEQ_MISC0);
 984
 985		tmp &= MC_SEQ_MISC0__MT__MASK;
 986		adev->gmc.vram_type = gmc_v7_0_convert_vram_type(tmp);
 987	}
 988
 989	r = amdgpu_irq_add_id(adev, AMDGPU_IRQ_CLIENTID_LEGACY, VISLANDS30_IV_SRCID_GFX_PAGE_INV_FAULT, &adev->gmc.vm_fault);
 990	if (r)
 991		return r;
 992
 993	r = amdgpu_irq_add_id(adev, AMDGPU_IRQ_CLIENTID_LEGACY, VISLANDS30_IV_SRCID_GFX_MEM_PROT_FAULT, &adev->gmc.vm_fault);
 994	if (r)
 995		return r;
 996
 997	/* Adjust VM size here.
 998	 * Currently set to 4GB ((1 << 20) 4k pages).
 999	 * Max GPUVM size for cayman and SI is 40 bits.
1000	 */
1001	amdgpu_vm_adjust_size(adev, 64, 9, 1, 40);
1002
1003	/* Set the internal MC address mask
1004	 * This is the max address of the GPU's
1005	 * internal address space.
1006	 */
1007	adev->gmc.mc_mask = 0xffffffffffULL; /* 40 bit MC */
1008
1009	r = dma_set_mask_and_coherent(adev->dev, DMA_BIT_MASK(40));
1010	if (r) {
1011		pr_warn("No suitable DMA available\n");
1012		return r;
1013	}
1014	adev->need_swiotlb = drm_need_swiotlb(40);
1015
1016	r = gmc_v7_0_init_microcode(adev);
1017	if (r) {
1018		DRM_ERROR("Failed to load mc firmware!\n");
1019		return r;
1020	}
1021
1022	r = gmc_v7_0_mc_init(adev);
1023	if (r)
1024		return r;
1025
1026	amdgpu_gmc_get_vbios_allocations(adev);
1027
1028	/* Memory manager */
1029	r = amdgpu_bo_init(adev);
1030	if (r)
1031		return r;
1032
1033	r = gmc_v7_0_gart_init(adev);
1034	if (r)
1035		return r;
1036
1037	/*
1038	 * number of VMs
1039	 * VMID 0 is reserved for System
1040	 * amdgpu graphics/compute will use VMIDs 1-7
1041	 * amdkfd will use VMIDs 8-15
1042	 */
1043	adev->vm_manager.first_kfd_vmid = 8;
1044	amdgpu_vm_manager_init(adev);
1045
1046	/* base offset of vram pages */
1047	if (adev->flags & AMD_IS_APU) {
1048		u64 tmp = RREG32(mmMC_VM_FB_OFFSET);
1049
1050		tmp <<= 22;
1051		adev->vm_manager.vram_base_offset = tmp;
1052	} else {
1053		adev->vm_manager.vram_base_offset = 0;
1054	}
1055
1056	adev->gmc.vm_fault_info = kmalloc(sizeof(struct kfd_vm_fault_info),
1057					GFP_KERNEL);
1058	if (!adev->gmc.vm_fault_info)
1059		return -ENOMEM;
1060	atomic_set(&adev->gmc.vm_fault_info_updated, 0);
1061
1062	return 0;
1063}
1064
1065static int gmc_v7_0_sw_fini(void *handle)
1066{
1067	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1068
1069	amdgpu_gem_force_release(adev);
1070	amdgpu_vm_manager_fini(adev);
1071	kfree(adev->gmc.vm_fault_info);
1072	amdgpu_gart_table_vram_free(adev);
1073	amdgpu_bo_fini(adev);
1074	amdgpu_ucode_release(&adev->gmc.fw);
 
1075
1076	return 0;
1077}
1078
1079static int gmc_v7_0_hw_init(void *handle)
1080{
1081	int r;
1082	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1083
1084	gmc_v7_0_init_golden_registers(adev);
1085
1086	gmc_v7_0_mc_program(adev);
1087
1088	if (!(adev->flags & AMD_IS_APU)) {
1089		r = gmc_v7_0_mc_load_microcode(adev);
1090		if (r) {
1091			DRM_ERROR("Failed to load MC firmware!\n");
1092			return r;
1093		}
1094	}
1095
1096	r = gmc_v7_0_gart_enable(adev);
1097	if (r)
1098		return r;
1099
1100	if (amdgpu_emu_mode == 1)
1101		return amdgpu_gmc_vram_checking(adev);
1102
1103	return 0;
1104}
1105
1106static int gmc_v7_0_hw_fini(void *handle)
1107{
1108	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1109
1110	amdgpu_irq_put(adev, &adev->gmc.vm_fault, 0);
1111	gmc_v7_0_gart_disable(adev);
1112
1113	return 0;
1114}
1115
1116static int gmc_v7_0_suspend(void *handle)
1117{
1118	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1119
1120	gmc_v7_0_hw_fini(adev);
1121
1122	return 0;
1123}
1124
1125static int gmc_v7_0_resume(void *handle)
1126{
1127	int r;
1128	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1129
1130	r = gmc_v7_0_hw_init(adev);
1131	if (r)
1132		return r;
1133
1134	amdgpu_vmid_reset_all(adev);
1135
1136	return 0;
1137}
1138
1139static bool gmc_v7_0_is_idle(void *handle)
1140{
1141	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1142	u32 tmp = RREG32(mmSRBM_STATUS);
1143
1144	if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
1145		   SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK | SRBM_STATUS__VMC_BUSY_MASK))
1146		return false;
1147
1148	return true;
1149}
1150
1151static int gmc_v7_0_wait_for_idle(void *handle)
1152{
1153	unsigned int i;
1154	u32 tmp;
1155	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1156
1157	for (i = 0; i < adev->usec_timeout; i++) {
1158		/* read MC_STATUS */
1159		tmp = RREG32(mmSRBM_STATUS) & (SRBM_STATUS__MCB_BUSY_MASK |
1160					       SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
1161					       SRBM_STATUS__MCC_BUSY_MASK |
1162					       SRBM_STATUS__MCD_BUSY_MASK |
1163					       SRBM_STATUS__VMC_BUSY_MASK);
1164		if (!tmp)
1165			return 0;
1166		udelay(1);
1167	}
1168	return -ETIMEDOUT;
1169
1170}
1171
1172static int gmc_v7_0_soft_reset(void *handle)
1173{
1174	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1175	u32 srbm_soft_reset = 0;
1176	u32 tmp = RREG32(mmSRBM_STATUS);
1177
1178	if (tmp & SRBM_STATUS__VMC_BUSY_MASK)
1179		srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset,
1180						SRBM_SOFT_RESET, SOFT_RESET_VMC, 1);
1181
1182	if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
1183		   SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK)) {
1184		if (!(adev->flags & AMD_IS_APU))
1185			srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset,
1186							SRBM_SOFT_RESET, SOFT_RESET_MC, 1);
1187	}
1188
1189	if (srbm_soft_reset) {
1190		gmc_v7_0_mc_stop(adev);
1191		if (gmc_v7_0_wait_for_idle((void *)adev))
1192			dev_warn(adev->dev, "Wait for GMC idle timed out !\n");
 
 
1193
1194		tmp = RREG32(mmSRBM_SOFT_RESET);
1195		tmp |= srbm_soft_reset;
1196		dev_info(adev->dev, "SRBM_SOFT_RESET=0x%08X\n", tmp);
1197		WREG32(mmSRBM_SOFT_RESET, tmp);
1198		tmp = RREG32(mmSRBM_SOFT_RESET);
1199
1200		udelay(50);
1201
1202		tmp &= ~srbm_soft_reset;
1203		WREG32(mmSRBM_SOFT_RESET, tmp);
1204		tmp = RREG32(mmSRBM_SOFT_RESET);
1205
1206		/* Wait a little for things to settle down */
1207		udelay(50);
1208
1209		gmc_v7_0_mc_resume(adev);
1210		udelay(50);
1211	}
1212
1213	return 0;
1214}
1215
1216static int gmc_v7_0_vm_fault_interrupt_state(struct amdgpu_device *adev,
1217					     struct amdgpu_irq_src *src,
1218					     unsigned int type,
1219					     enum amdgpu_interrupt_state state)
1220{
1221	u32 tmp;
1222	u32 bits = (VM_CONTEXT1_CNTL__RANGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1223		    VM_CONTEXT1_CNTL__DUMMY_PAGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1224		    VM_CONTEXT1_CNTL__PDE0_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1225		    VM_CONTEXT1_CNTL__VALID_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1226		    VM_CONTEXT1_CNTL__READ_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1227		    VM_CONTEXT1_CNTL__WRITE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK);
1228
1229	switch (state) {
1230	case AMDGPU_IRQ_STATE_DISABLE:
1231		/* system context */
1232		tmp = RREG32(mmVM_CONTEXT0_CNTL);
1233		tmp &= ~bits;
1234		WREG32(mmVM_CONTEXT0_CNTL, tmp);
1235		/* VMs */
1236		tmp = RREG32(mmVM_CONTEXT1_CNTL);
1237		tmp &= ~bits;
1238		WREG32(mmVM_CONTEXT1_CNTL, tmp);
1239		break;
1240	case AMDGPU_IRQ_STATE_ENABLE:
1241		/* system context */
1242		tmp = RREG32(mmVM_CONTEXT0_CNTL);
1243		tmp |= bits;
1244		WREG32(mmVM_CONTEXT0_CNTL, tmp);
1245		/* VMs */
1246		tmp = RREG32(mmVM_CONTEXT1_CNTL);
1247		tmp |= bits;
1248		WREG32(mmVM_CONTEXT1_CNTL, tmp);
1249		break;
1250	default:
1251		break;
1252	}
1253
1254	return 0;
1255}
1256
1257static int gmc_v7_0_process_interrupt(struct amdgpu_device *adev,
1258				      struct amdgpu_irq_src *source,
1259				      struct amdgpu_iv_entry *entry)
1260{
1261	u32 addr, status, mc_client, vmid;
1262
1263	addr = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_ADDR);
1264	status = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_STATUS);
1265	mc_client = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_MCCLIENT);
1266	/* reset addr and status */
1267	WREG32_P(mmVM_CONTEXT1_CNTL2, 1, ~1);
1268
1269	if (!addr && !status)
1270		return 0;
1271
1272	amdgpu_vm_update_fault_cache(adev, entry->pasid,
1273				     ((u64)addr) << AMDGPU_GPU_PAGE_SHIFT, status, AMDGPU_GFXHUB(0));
1274
1275	if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_FIRST)
1276		gmc_v7_0_set_fault_enable_default(adev, false);
1277
1278	if (printk_ratelimit()) {
1279		dev_err(adev->dev, "GPU fault detected: %d 0x%08x\n",
1280			entry->src_id, entry->src_data[0]);
1281		dev_err(adev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_ADDR   0x%08X\n",
1282			addr);
1283		dev_err(adev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n",
1284			status);
1285		gmc_v7_0_vm_decode_fault(adev, status, addr, mc_client,
1286					 entry->pasid);
1287	}
1288
1289	vmid = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
1290			     VMID);
1291	if (amdgpu_amdkfd_is_kfd_vmid(adev, vmid)
1292		&& !atomic_read(&adev->gmc.vm_fault_info_updated)) {
1293		struct kfd_vm_fault_info *info = adev->gmc.vm_fault_info;
1294		u32 protections = REG_GET_FIELD(status,
1295					VM_CONTEXT1_PROTECTION_FAULT_STATUS,
1296					PROTECTIONS);
1297
1298		info->vmid = vmid;
1299		info->mc_id = REG_GET_FIELD(status,
1300					    VM_CONTEXT1_PROTECTION_FAULT_STATUS,
1301					    MEMORY_CLIENT_ID);
1302		info->status = status;
1303		info->page_addr = addr;
1304		info->prot_valid = protections & 0x7 ? true : false;
1305		info->prot_read = protections & 0x8 ? true : false;
1306		info->prot_write = protections & 0x10 ? true : false;
1307		info->prot_exec = protections & 0x20 ? true : false;
1308		mb();
1309		atomic_set(&adev->gmc.vm_fault_info_updated, 1);
1310	}
1311
1312	return 0;
1313}
1314
1315static int gmc_v7_0_set_clockgating_state(void *handle,
1316					  enum amd_clockgating_state state)
1317{
1318	bool gate = false;
1319	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1320
1321	if (state == AMD_CG_STATE_GATE)
1322		gate = true;
1323
1324	if (!(adev->flags & AMD_IS_APU)) {
1325		gmc_v7_0_enable_mc_mgcg(adev, gate);
1326		gmc_v7_0_enable_mc_ls(adev, gate);
1327	}
1328	gmc_v7_0_enable_bif_mgls(adev, gate);
1329	gmc_v7_0_enable_hdp_mgcg(adev, gate);
1330	gmc_v7_0_enable_hdp_ls(adev, gate);
1331
1332	return 0;
1333}
1334
1335static int gmc_v7_0_set_powergating_state(void *handle,
1336					  enum amd_powergating_state state)
1337{
1338	return 0;
1339}
1340
1341static const struct amd_ip_funcs gmc_v7_0_ip_funcs = {
1342	.name = "gmc_v7_0",
1343	.early_init = gmc_v7_0_early_init,
1344	.late_init = gmc_v7_0_late_init,
1345	.sw_init = gmc_v7_0_sw_init,
1346	.sw_fini = gmc_v7_0_sw_fini,
1347	.hw_init = gmc_v7_0_hw_init,
1348	.hw_fini = gmc_v7_0_hw_fini,
1349	.suspend = gmc_v7_0_suspend,
1350	.resume = gmc_v7_0_resume,
1351	.is_idle = gmc_v7_0_is_idle,
1352	.wait_for_idle = gmc_v7_0_wait_for_idle,
1353	.soft_reset = gmc_v7_0_soft_reset,
1354	.set_clockgating_state = gmc_v7_0_set_clockgating_state,
1355	.set_powergating_state = gmc_v7_0_set_powergating_state,
1356};
1357
1358static const struct amdgpu_gmc_funcs gmc_v7_0_gmc_funcs = {
1359	.flush_gpu_tlb = gmc_v7_0_flush_gpu_tlb,
1360	.flush_gpu_tlb_pasid = gmc_v7_0_flush_gpu_tlb_pasid,
1361	.emit_flush_gpu_tlb = gmc_v7_0_emit_flush_gpu_tlb,
1362	.emit_pasid_mapping = gmc_v7_0_emit_pasid_mapping,
1363	.set_prt = gmc_v7_0_set_prt,
1364	.get_vm_pde = gmc_v7_0_get_vm_pde,
1365	.get_vm_pte = gmc_v7_0_get_vm_pte,
1366	.get_vbios_fb_size = gmc_v7_0_get_vbios_fb_size,
1367};
1368
1369static const struct amdgpu_irq_src_funcs gmc_v7_0_irq_funcs = {
1370	.set = gmc_v7_0_vm_fault_interrupt_state,
1371	.process = gmc_v7_0_process_interrupt,
1372};
1373
1374static void gmc_v7_0_set_gmc_funcs(struct amdgpu_device *adev)
1375{
1376	adev->gmc.gmc_funcs = &gmc_v7_0_gmc_funcs;
1377}
1378
1379static void gmc_v7_0_set_irq_funcs(struct amdgpu_device *adev)
1380{
1381	adev->gmc.vm_fault.num_types = 1;
1382	adev->gmc.vm_fault.funcs = &gmc_v7_0_irq_funcs;
1383}
1384
1385const struct amdgpu_ip_block_version gmc_v7_0_ip_block = {
 
1386	.type = AMD_IP_BLOCK_TYPE_GMC,
1387	.major = 7,
1388	.minor = 0,
1389	.rev = 0,
1390	.funcs = &gmc_v7_0_ip_funcs,
1391};
1392
1393const struct amdgpu_ip_block_version gmc_v7_4_ip_block = {
 
1394	.type = AMD_IP_BLOCK_TYPE_GMC,
1395	.major = 7,
1396	.minor = 4,
1397	.rev = 0,
1398	.funcs = &gmc_v7_0_ip_funcs,
1399};
v5.14.15
   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
  53static void gmc_v7_0_set_gmc_funcs(struct amdgpu_device *adev);
  54static void gmc_v7_0_set_irq_funcs(struct amdgpu_device *adev);
  55static int gmc_v7_0_wait_for_idle(void *handle);
  56
  57MODULE_FIRMWARE("amdgpu/bonaire_mc.bin");
  58MODULE_FIRMWARE("amdgpu/hawaii_mc.bin");
  59MODULE_FIRMWARE("amdgpu/topaz_mc.bin");
  60
  61static 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
  69static const u32 iceland_mgcg_cgcg_init[] =
  70{
  71	mmMC_MEM_POWER_LS, 0xffffffff, 0x00000104
  72};
  73
  74static 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
  90static 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
 109static 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 */
 132static 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
 164out:
 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 */
 181static 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
 242static 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 */
 260static 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 */
 322static 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.real_vram_size > adev->gmc.aper_size) {
 
 386		adev->gmc.aper_base = ((u64)RREG32(mmMC_VM_FB_OFFSET)) << 22;
 387		adev->gmc.aper_size = adev->gmc.real_vram_size;
 388	}
 389#endif
 390
 391	/* In case the PCI BAR is larger than the actual amount of vram */
 392	adev->gmc.visible_vram_size = adev->gmc.aper_size;
 393	if (adev->gmc.visible_vram_size > adev->gmc.real_vram_size)
 394		adev->gmc.visible_vram_size = adev->gmc.real_vram_size;
 395
 396	/* set the gart size */
 397	if (amdgpu_gart_size == -1) {
 398		switch (adev->asic_type) {
 399		case CHIP_TOPAZ:     /* no MM engines */
 400		default:
 401			adev->gmc.gart_size = 256ULL << 20;
 402			break;
 403#ifdef CONFIG_DRM_AMDGPU_CIK
 404		case CHIP_BONAIRE: /* UVD, VCE do not support GPUVM */
 405		case CHIP_HAWAII:  /* UVD, VCE do not support GPUVM */
 406		case CHIP_KAVERI:  /* UVD, VCE do not support GPUVM */
 407		case CHIP_KABINI:  /* UVD, VCE do not support GPUVM */
 408		case CHIP_MULLINS: /* UVD, VCE do not support GPUVM */
 409			adev->gmc.gart_size = 1024ULL << 20;
 410			break;
 411#endif
 412		}
 413	} else {
 414		adev->gmc.gart_size = (u64)amdgpu_gart_size << 20;
 415	}
 416
 417	adev->gmc.gart_size += adev->pm.smu_prv_buffer_size;
 418	gmc_v7_0_vram_gtt_location(adev, &adev->gmc);
 419
 420	return 0;
 421}
 422
 423/**
 424 * gmc_v7_0_flush_gpu_tlb_pasid - tlb flush via pasid
 425 *
 426 * @adev: amdgpu_device pointer
 427 * @pasid: pasid to be flush
 428 * @flush_type: type of flush
 429 * @all_hub: flush all hubs
 
 430 *
 431 * Flush the TLB for the requested pasid.
 432 */
 433static int gmc_v7_0_flush_gpu_tlb_pasid(struct amdgpu_device *adev,
 434					uint16_t pasid, uint32_t flush_type,
 435					bool all_hub)
 436{
 
 437	int vmid;
 438	unsigned int tmp;
 439
 440	if (amdgpu_in_reset(adev))
 441		return -EIO;
 442
 443	for (vmid = 1; vmid < 16; vmid++) {
 
 444
 445		tmp = RREG32(mmATC_VMID0_PASID_MAPPING + vmid);
 446		if ((tmp & ATC_VMID0_PASID_MAPPING__VALID_MASK) &&
 447			(tmp & ATC_VMID0_PASID_MAPPING__PASID_MASK) == pasid) {
 448			WREG32(mmVM_INVALIDATE_REQUEST, 1 << vmid);
 449			RREG32(mmVM_INVALIDATE_RESPONSE);
 450			break;
 451		}
 452	}
 453
 454	return 0;
 
 455}
 456
 457/*
 458 * GART
 459 * VMID 0 is the physical GPU addresses as used by the kernel.
 460 * VMIDs 1-15 are used for userspace clients and are handled
 461 * by the amdgpu vm/hsa code.
 462 */
 463
 464/**
 465 * gmc_v7_0_flush_gpu_tlb - gart tlb flush callback
 466 *
 467 * @adev: amdgpu_device pointer
 468 * @vmid: vm instance to flush
 469 * @vmhub: which hub to flush
 470 * @flush_type: type of flush
 471 * *
 472 * Flush the TLB for the requested page table (CIK).
 473 */
 474static void gmc_v7_0_flush_gpu_tlb(struct amdgpu_device *adev, uint32_t vmid,
 475					uint32_t vmhub, uint32_t flush_type)
 476{
 477	/* bits 0-15 are the VM contexts0-15 */
 478	WREG32(mmVM_INVALIDATE_REQUEST, 1 << vmid);
 479}
 480
 481static uint64_t gmc_v7_0_emit_flush_gpu_tlb(struct amdgpu_ring *ring,
 482					    unsigned vmid, uint64_t pd_addr)
 483{
 484	uint32_t reg;
 485
 486	if (vmid < 8)
 487		reg = mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + vmid;
 488	else
 489		reg = mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + vmid - 8;
 490	amdgpu_ring_emit_wreg(ring, reg, pd_addr >> 12);
 491
 492	/* bits 0-15 are the VM contexts0-15 */
 493	amdgpu_ring_emit_wreg(ring, mmVM_INVALIDATE_REQUEST, 1 << vmid);
 494
 495	return pd_addr;
 496}
 497
 498static void gmc_v7_0_emit_pasid_mapping(struct amdgpu_ring *ring, unsigned vmid,
 499					unsigned pasid)
 500{
 501	amdgpu_ring_emit_wreg(ring, mmIH_VMID_0_LUT + vmid, pasid);
 502}
 503
 504static void gmc_v7_0_get_vm_pde(struct amdgpu_device *adev, int level,
 505				uint64_t *addr, uint64_t *flags)
 506{
 507	BUG_ON(*addr & 0xFFFFFF0000000FFFULL);
 508}
 509
 510static void gmc_v7_0_get_vm_pte(struct amdgpu_device *adev,
 511				struct amdgpu_bo_va_mapping *mapping,
 512				uint64_t *flags)
 513{
 514	*flags &= ~AMDGPU_PTE_EXECUTABLE;
 515	*flags &= ~AMDGPU_PTE_PRT;
 516}
 517
 518/**
 519 * gmc_v7_0_set_fault_enable_default - update VM fault handling
 520 *
 521 * @adev: amdgpu_device pointer
 522 * @value: true redirects VM faults to the default page
 523 */
 524static void gmc_v7_0_set_fault_enable_default(struct amdgpu_device *adev,
 525					      bool value)
 526{
 527	u32 tmp;
 528
 529	tmp = RREG32(mmVM_CONTEXT1_CNTL);
 530	tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 531			    RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 532	tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 533			    DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 534	tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 535			    PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 536	tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 537			    VALID_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 538	tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 539			    READ_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 540	tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 541			    WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 542	WREG32(mmVM_CONTEXT1_CNTL, tmp);
 543}
 544
 545/**
 546 * gmc_v7_0_set_prt - set PRT VM fault
 547 *
 548 * @adev: amdgpu_device pointer
 549 * @enable: enable/disable VM fault handling for PRT
 550 */
 551static void gmc_v7_0_set_prt(struct amdgpu_device *adev, bool enable)
 552{
 553	uint32_t tmp;
 554
 555	if (enable && !adev->gmc.prt_warning) {
 556		dev_warn(adev->dev, "Disabling VM faults because of PRT request!\n");
 557		adev->gmc.prt_warning = true;
 558	}
 559
 560	tmp = RREG32(mmVM_PRT_CNTL);
 561	tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 562			    CB_DISABLE_READ_FAULT_ON_UNMAPPED_ACCESS, enable);
 563	tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 564			    CB_DISABLE_WRITE_FAULT_ON_UNMAPPED_ACCESS, enable);
 565	tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 566			    TC_DISABLE_READ_FAULT_ON_UNMAPPED_ACCESS, enable);
 567	tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 568			    TC_DISABLE_WRITE_FAULT_ON_UNMAPPED_ACCESS, enable);
 569	tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 570			    L2_CACHE_STORE_INVALID_ENTRIES, enable);
 571	tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 572			    L1_TLB_STORE_INVALID_ENTRIES, enable);
 573	tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
 574			    MASK_PDE0_FAULT, enable);
 575	WREG32(mmVM_PRT_CNTL, tmp);
 576
 577	if (enable) {
 578		uint32_t low = AMDGPU_VA_RESERVED_SIZE >> AMDGPU_GPU_PAGE_SHIFT;
 579		uint32_t high = adev->vm_manager.max_pfn -
 580			(AMDGPU_VA_RESERVED_SIZE >> AMDGPU_GPU_PAGE_SHIFT);
 581
 582		WREG32(mmVM_PRT_APERTURE0_LOW_ADDR, low);
 583		WREG32(mmVM_PRT_APERTURE1_LOW_ADDR, low);
 584		WREG32(mmVM_PRT_APERTURE2_LOW_ADDR, low);
 585		WREG32(mmVM_PRT_APERTURE3_LOW_ADDR, low);
 586		WREG32(mmVM_PRT_APERTURE0_HIGH_ADDR, high);
 587		WREG32(mmVM_PRT_APERTURE1_HIGH_ADDR, high);
 588		WREG32(mmVM_PRT_APERTURE2_HIGH_ADDR, high);
 589		WREG32(mmVM_PRT_APERTURE3_HIGH_ADDR, high);
 590	} else {
 591		WREG32(mmVM_PRT_APERTURE0_LOW_ADDR, 0xfffffff);
 592		WREG32(mmVM_PRT_APERTURE1_LOW_ADDR, 0xfffffff);
 593		WREG32(mmVM_PRT_APERTURE2_LOW_ADDR, 0xfffffff);
 594		WREG32(mmVM_PRT_APERTURE3_LOW_ADDR, 0xfffffff);
 595		WREG32(mmVM_PRT_APERTURE0_HIGH_ADDR, 0x0);
 596		WREG32(mmVM_PRT_APERTURE1_HIGH_ADDR, 0x0);
 597		WREG32(mmVM_PRT_APERTURE2_HIGH_ADDR, 0x0);
 598		WREG32(mmVM_PRT_APERTURE3_HIGH_ADDR, 0x0);
 599	}
 600}
 601
 602/**
 603 * gmc_v7_0_gart_enable - gart enable
 604 *
 605 * @adev: amdgpu_device pointer
 606 *
 607 * This sets up the TLBs, programs the page tables for VMID0,
 608 * sets up the hw for VMIDs 1-15 which are allocated on
 609 * demand, and sets up the global locations for the LDS, GDS,
 610 * and GPUVM for FSA64 clients (CIK).
 611 * Returns 0 for success, errors for failure.
 612 */
 613static int gmc_v7_0_gart_enable(struct amdgpu_device *adev)
 614{
 615	uint64_t table_addr;
 616	int r, i;
 617	u32 tmp, field;
 
 618
 619	if (adev->gart.bo == NULL) {
 620		dev_err(adev->dev, "No VRAM object for PCIE GART.\n");
 621		return -EINVAL;
 622	}
 623	r = amdgpu_gart_table_vram_pin(adev);
 624	if (r)
 625		return r;
 626
 627	table_addr = amdgpu_bo_gpu_offset(adev->gart.bo);
 628
 629	/* Setup TLB control */
 630	tmp = RREG32(mmMC_VM_MX_L1_TLB_CNTL);
 631	tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 1);
 632	tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_FRAGMENT_PROCESSING, 1);
 633	tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, SYSTEM_ACCESS_MODE, 3);
 634	tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_ADVANCED_DRIVER_MODEL, 1);
 635	tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, SYSTEM_APERTURE_UNMAPPED_ACCESS, 0);
 636	WREG32(mmMC_VM_MX_L1_TLB_CNTL, tmp);
 637	/* Setup L2 cache */
 638	tmp = RREG32(mmVM_L2_CNTL);
 639	tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_CACHE, 1);
 640	tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_FRAGMENT_PROCESSING, 1);
 641	tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE, 1);
 642	tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_PDE0_CACHE_LRU_UPDATE_BY_WRITE, 1);
 643	tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, EFFECTIVE_L2_QUEUE_SIZE, 7);
 644	tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, CONTEXT1_IDENTITY_ACCESS_MODE, 1);
 645	tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_DEFAULT_PAGE_OUT_TO_SYSTEM_MEMORY, 1);
 646	WREG32(mmVM_L2_CNTL, tmp);
 647	tmp = REG_SET_FIELD(0, VM_L2_CNTL2, INVALIDATE_ALL_L1_TLBS, 1);
 648	tmp = REG_SET_FIELD(tmp, VM_L2_CNTL2, INVALIDATE_L2_CACHE, 1);
 649	WREG32(mmVM_L2_CNTL2, tmp);
 650
 651	field = adev->vm_manager.fragment_size;
 652	tmp = RREG32(mmVM_L2_CNTL3);
 653	tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, L2_CACHE_BIGK_ASSOCIATIVITY, 1);
 654	tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, BANK_SELECT, field);
 655	tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, L2_CACHE_BIGK_FRAGMENT_SIZE, field);
 656	WREG32(mmVM_L2_CNTL3, tmp);
 657	/* setup context0 */
 658	WREG32(mmVM_CONTEXT0_PAGE_TABLE_START_ADDR, adev->gmc.gart_start >> 12);
 659	WREG32(mmVM_CONTEXT0_PAGE_TABLE_END_ADDR, adev->gmc.gart_end >> 12);
 660	WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR, table_addr >> 12);
 661	WREG32(mmVM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR,
 662			(u32)(adev->dummy_page_addr >> 12));
 663	WREG32(mmVM_CONTEXT0_CNTL2, 0);
 664	tmp = RREG32(mmVM_CONTEXT0_CNTL);
 665	tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, ENABLE_CONTEXT, 1);
 666	tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, PAGE_TABLE_DEPTH, 0);
 667	tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 668	WREG32(mmVM_CONTEXT0_CNTL, tmp);
 669
 670	WREG32(0x575, 0);
 671	WREG32(0x576, 0);
 672	WREG32(0x577, 0);
 673
 674	/* empty context1-15 */
 675	/* FIXME start with 4G, once using 2 level pt switch to full
 676	 * vm size space
 677	 */
 678	/* set vm size, must be a multiple of 4 */
 679	WREG32(mmVM_CONTEXT1_PAGE_TABLE_START_ADDR, 0);
 680	WREG32(mmVM_CONTEXT1_PAGE_TABLE_END_ADDR, adev->vm_manager.max_pfn - 1);
 681	for (i = 1; i < AMDGPU_NUM_VMID; i++) {
 682		if (i < 8)
 683			WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + i,
 684			       table_addr >> 12);
 685		else
 686			WREG32(mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + i - 8,
 687			       table_addr >> 12);
 688	}
 689
 690	/* enable context1-15 */
 691	WREG32(mmVM_CONTEXT1_PROTECTION_FAULT_DEFAULT_ADDR,
 692	       (u32)(adev->dummy_page_addr >> 12));
 693	WREG32(mmVM_CONTEXT1_CNTL2, 4);
 694	tmp = RREG32(mmVM_CONTEXT1_CNTL);
 695	tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, ENABLE_CONTEXT, 1);
 696	tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, PAGE_TABLE_DEPTH, 1);
 697	tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, PAGE_TABLE_BLOCK_SIZE,
 698			    adev->vm_manager.block_size - 9);
 699	WREG32(mmVM_CONTEXT1_CNTL, tmp);
 700	if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_ALWAYS)
 701		gmc_v7_0_set_fault_enable_default(adev, false);
 702	else
 703		gmc_v7_0_set_fault_enable_default(adev, true);
 704
 705	if (adev->asic_type == CHIP_KAVERI) {
 706		tmp = RREG32(mmCHUB_CONTROL);
 707		tmp &= ~BYPASS_VM;
 708		WREG32(mmCHUB_CONTROL, tmp);
 709	}
 710
 711	gmc_v7_0_flush_gpu_tlb(adev, 0, 0, 0);
 712	DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n",
 713		 (unsigned)(adev->gmc.gart_size >> 20),
 714		 (unsigned long long)table_addr);
 715	adev->gart.ready = true;
 716	return 0;
 717}
 718
 719static int gmc_v7_0_gart_init(struct amdgpu_device *adev)
 720{
 721	int r;
 722
 723	if (adev->gart.bo) {
 724		WARN(1, "R600 PCIE GART already initialized\n");
 725		return 0;
 726	}
 727	/* Initialize common gart structure */
 728	r = amdgpu_gart_init(adev);
 729	if (r)
 730		return r;
 731	adev->gart.table_size = adev->gart.num_gpu_pages * 8;
 732	adev->gart.gart_pte_flags = 0;
 733	return amdgpu_gart_table_vram_alloc(adev);
 734}
 735
 736/**
 737 * gmc_v7_0_gart_disable - gart disable
 738 *
 739 * @adev: amdgpu_device pointer
 740 *
 741 * This disables all VM page table (CIK).
 742 */
 743static void gmc_v7_0_gart_disable(struct amdgpu_device *adev)
 744{
 745	u32 tmp;
 746
 747	/* Disable all tables */
 748	WREG32(mmVM_CONTEXT0_CNTL, 0);
 749	WREG32(mmVM_CONTEXT1_CNTL, 0);
 750	/* Setup TLB control */
 751	tmp = RREG32(mmMC_VM_MX_L1_TLB_CNTL);
 752	tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 0);
 753	tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_FRAGMENT_PROCESSING, 0);
 754	tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_ADVANCED_DRIVER_MODEL, 0);
 755	WREG32(mmMC_VM_MX_L1_TLB_CNTL, tmp);
 756	/* Setup L2 cache */
 757	tmp = RREG32(mmVM_L2_CNTL);
 758	tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_CACHE, 0);
 759	WREG32(mmVM_L2_CNTL, tmp);
 760	WREG32(mmVM_L2_CNTL2, 0);
 761	amdgpu_gart_table_vram_unpin(adev);
 762}
 763
 764/**
 765 * gmc_v7_0_vm_decode_fault - print human readable fault info
 766 *
 767 * @adev: amdgpu_device pointer
 768 * @status: VM_CONTEXT1_PROTECTION_FAULT_STATUS register value
 769 * @addr: VM_CONTEXT1_PROTECTION_FAULT_ADDR register value
 770 * @mc_client: VM_CONTEXT1_PROTECTION_FAULT_MCCLIENT register value
 771 * @pasid: debug logging only - no functional use
 772 *
 773 * Print human readable fault information (CIK).
 774 */
 775static void gmc_v7_0_vm_decode_fault(struct amdgpu_device *adev, u32 status,
 776				     u32 addr, u32 mc_client, unsigned pasid)
 777{
 778	u32 vmid = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS, VMID);
 779	u32 protections = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
 780					PROTECTIONS);
 781	char block[5] = { mc_client >> 24, (mc_client >> 16) & 0xff,
 782		(mc_client >> 8) & 0xff, mc_client & 0xff, 0 };
 783	u32 mc_id;
 784
 785	mc_id = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
 786			      MEMORY_CLIENT_ID);
 787
 788	dev_err(adev->dev, "VM fault (0x%02x, vmid %d, pasid %d) at page %u, %s from '%s' (0x%08x) (%d)\n",
 789	       protections, vmid, pasid, addr,
 790	       REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
 791			     MEMORY_CLIENT_RW) ?
 792	       "write" : "read", block, mc_client, mc_id);
 793}
 794
 795
 796static const u32 mc_cg_registers[] = {
 797	mmMC_HUB_MISC_HUB_CG,
 798	mmMC_HUB_MISC_SIP_CG,
 799	mmMC_HUB_MISC_VM_CG,
 800	mmMC_XPB_CLK_GAT,
 801	mmATC_MISC_CG,
 802	mmMC_CITF_MISC_WR_CG,
 803	mmMC_CITF_MISC_RD_CG,
 804	mmMC_CITF_MISC_VM_CG,
 805	mmVM_L2_CG,
 806};
 807
 808static const u32 mc_cg_ls_en[] = {
 809	MC_HUB_MISC_HUB_CG__MEM_LS_ENABLE_MASK,
 810	MC_HUB_MISC_SIP_CG__MEM_LS_ENABLE_MASK,
 811	MC_HUB_MISC_VM_CG__MEM_LS_ENABLE_MASK,
 812	MC_XPB_CLK_GAT__MEM_LS_ENABLE_MASK,
 813	ATC_MISC_CG__MEM_LS_ENABLE_MASK,
 814	MC_CITF_MISC_WR_CG__MEM_LS_ENABLE_MASK,
 815	MC_CITF_MISC_RD_CG__MEM_LS_ENABLE_MASK,
 816	MC_CITF_MISC_VM_CG__MEM_LS_ENABLE_MASK,
 817	VM_L2_CG__MEM_LS_ENABLE_MASK,
 818};
 819
 820static const u32 mc_cg_en[] = {
 821	MC_HUB_MISC_HUB_CG__ENABLE_MASK,
 822	MC_HUB_MISC_SIP_CG__ENABLE_MASK,
 823	MC_HUB_MISC_VM_CG__ENABLE_MASK,
 824	MC_XPB_CLK_GAT__ENABLE_MASK,
 825	ATC_MISC_CG__ENABLE_MASK,
 826	MC_CITF_MISC_WR_CG__ENABLE_MASK,
 827	MC_CITF_MISC_RD_CG__ENABLE_MASK,
 828	MC_CITF_MISC_VM_CG__ENABLE_MASK,
 829	VM_L2_CG__ENABLE_MASK,
 830};
 831
 832static void gmc_v7_0_enable_mc_ls(struct amdgpu_device *adev,
 833				  bool enable)
 834{
 835	int i;
 836	u32 orig, data;
 837
 838	for (i = 0; i < ARRAY_SIZE(mc_cg_registers); i++) {
 839		orig = data = RREG32(mc_cg_registers[i]);
 840		if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_LS))
 841			data |= mc_cg_ls_en[i];
 842		else
 843			data &= ~mc_cg_ls_en[i];
 844		if (data != orig)
 845			WREG32(mc_cg_registers[i], data);
 846	}
 847}
 848
 849static void gmc_v7_0_enable_mc_mgcg(struct amdgpu_device *adev,
 850				    bool enable)
 851{
 852	int i;
 853	u32 orig, data;
 854
 855	for (i = 0; i < ARRAY_SIZE(mc_cg_registers); i++) {
 856		orig = data = RREG32(mc_cg_registers[i]);
 857		if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_MGCG))
 858			data |= mc_cg_en[i];
 859		else
 860			data &= ~mc_cg_en[i];
 861		if (data != orig)
 862			WREG32(mc_cg_registers[i], data);
 863	}
 864}
 865
 866static void gmc_v7_0_enable_bif_mgls(struct amdgpu_device *adev,
 867				     bool enable)
 868{
 869	u32 orig, data;
 870
 871	orig = data = RREG32_PCIE(ixPCIE_CNTL2);
 872
 873	if (enable && (adev->cg_flags & AMD_CG_SUPPORT_BIF_LS)) {
 874		data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_LS_EN, 1);
 875		data = REG_SET_FIELD(data, PCIE_CNTL2, MST_MEM_LS_EN, 1);
 876		data = REG_SET_FIELD(data, PCIE_CNTL2, REPLAY_MEM_LS_EN, 1);
 877		data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_AGGRESSIVE_LS_EN, 1);
 878	} else {
 879		data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_LS_EN, 0);
 880		data = REG_SET_FIELD(data, PCIE_CNTL2, MST_MEM_LS_EN, 0);
 881		data = REG_SET_FIELD(data, PCIE_CNTL2, REPLAY_MEM_LS_EN, 0);
 882		data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_AGGRESSIVE_LS_EN, 0);
 883	}
 884
 885	if (orig != data)
 886		WREG32_PCIE(ixPCIE_CNTL2, data);
 887}
 888
 889static void gmc_v7_0_enable_hdp_mgcg(struct amdgpu_device *adev,
 890				     bool enable)
 891{
 892	u32 orig, data;
 893
 894	orig = data = RREG32(mmHDP_HOST_PATH_CNTL);
 895
 896	if (enable && (adev->cg_flags & AMD_CG_SUPPORT_HDP_MGCG))
 897		data = REG_SET_FIELD(data, HDP_HOST_PATH_CNTL, CLOCK_GATING_DIS, 0);
 898	else
 899		data = REG_SET_FIELD(data, HDP_HOST_PATH_CNTL, CLOCK_GATING_DIS, 1);
 900
 901	if (orig != data)
 902		WREG32(mmHDP_HOST_PATH_CNTL, data);
 903}
 904
 905static void gmc_v7_0_enable_hdp_ls(struct amdgpu_device *adev,
 906				   bool enable)
 907{
 908	u32 orig, data;
 909
 910	orig = data = RREG32(mmHDP_MEM_POWER_LS);
 911
 912	if (enable && (adev->cg_flags & AMD_CG_SUPPORT_HDP_LS))
 913		data = REG_SET_FIELD(data, HDP_MEM_POWER_LS, LS_ENABLE, 1);
 914	else
 915		data = REG_SET_FIELD(data, HDP_MEM_POWER_LS, LS_ENABLE, 0);
 916
 917	if (orig != data)
 918		WREG32(mmHDP_MEM_POWER_LS, data);
 919}
 920
 921static int gmc_v7_0_convert_vram_type(int mc_seq_vram_type)
 922{
 923	switch (mc_seq_vram_type) {
 924	case MC_SEQ_MISC0__MT__GDDR1:
 925		return AMDGPU_VRAM_TYPE_GDDR1;
 926	case MC_SEQ_MISC0__MT__DDR2:
 927		return AMDGPU_VRAM_TYPE_DDR2;
 928	case MC_SEQ_MISC0__MT__GDDR3:
 929		return AMDGPU_VRAM_TYPE_GDDR3;
 930	case MC_SEQ_MISC0__MT__GDDR4:
 931		return AMDGPU_VRAM_TYPE_GDDR4;
 932	case MC_SEQ_MISC0__MT__GDDR5:
 933		return AMDGPU_VRAM_TYPE_GDDR5;
 934	case MC_SEQ_MISC0__MT__HBM:
 935		return AMDGPU_VRAM_TYPE_HBM;
 936	case MC_SEQ_MISC0__MT__DDR3:
 937		return AMDGPU_VRAM_TYPE_DDR3;
 938	default:
 939		return AMDGPU_VRAM_TYPE_UNKNOWN;
 940	}
 941}
 942
 943static int gmc_v7_0_early_init(void *handle)
 944{
 945	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 946
 947	gmc_v7_0_set_gmc_funcs(adev);
 948	gmc_v7_0_set_irq_funcs(adev);
 949
 950	adev->gmc.shared_aperture_start = 0x2000000000000000ULL;
 951	adev->gmc.shared_aperture_end =
 952		adev->gmc.shared_aperture_start + (4ULL << 30) - 1;
 953	adev->gmc.private_aperture_start =
 954		adev->gmc.shared_aperture_end + 1;
 955	adev->gmc.private_aperture_end =
 956		adev->gmc.private_aperture_start + (4ULL << 30) - 1;
 
 957
 958	return 0;
 959}
 960
 961static int gmc_v7_0_late_init(void *handle)
 962{
 963	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 964
 965	if (amdgpu_vm_fault_stop != AMDGPU_VM_FAULT_STOP_ALWAYS)
 966		return amdgpu_irq_get(adev, &adev->gmc.vm_fault, 0);
 967	else
 968		return 0;
 969}
 970
 971static unsigned gmc_v7_0_get_vbios_fb_size(struct amdgpu_device *adev)
 972{
 973	u32 d1vga_control = RREG32(mmD1VGA_CONTROL);
 974	unsigned size;
 975
 976	if (REG_GET_FIELD(d1vga_control, D1VGA_CONTROL, D1VGA_MODE_ENABLE)) {
 977		size = AMDGPU_VBIOS_VGA_ALLOCATION;
 978	} else {
 979		u32 viewport = RREG32(mmVIEWPORT_SIZE);
 
 980		size = (REG_GET_FIELD(viewport, VIEWPORT_SIZE, VIEWPORT_HEIGHT) *
 981			REG_GET_FIELD(viewport, VIEWPORT_SIZE, VIEWPORT_WIDTH) *
 982			4);
 983	}
 984
 985	return size;
 986}
 987
 988static int gmc_v7_0_sw_init(void *handle)
 989{
 990	int r;
 991	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 992
 993	adev->num_vmhubs = 1;
 994
 995	if (adev->flags & AMD_IS_APU) {
 996		adev->gmc.vram_type = AMDGPU_VRAM_TYPE_UNKNOWN;
 997	} else {
 998		u32 tmp = RREG32(mmMC_SEQ_MISC0);
 
 999		tmp &= MC_SEQ_MISC0__MT__MASK;
1000		adev->gmc.vram_type = gmc_v7_0_convert_vram_type(tmp);
1001	}
1002
1003	r = amdgpu_irq_add_id(adev, AMDGPU_IRQ_CLIENTID_LEGACY, VISLANDS30_IV_SRCID_GFX_PAGE_INV_FAULT, &adev->gmc.vm_fault);
1004	if (r)
1005		return r;
1006
1007	r = amdgpu_irq_add_id(adev, AMDGPU_IRQ_CLIENTID_LEGACY, VISLANDS30_IV_SRCID_GFX_MEM_PROT_FAULT, &adev->gmc.vm_fault);
1008	if (r)
1009		return r;
1010
1011	/* Adjust VM size here.
1012	 * Currently set to 4GB ((1 << 20) 4k pages).
1013	 * Max GPUVM size for cayman and SI is 40 bits.
1014	 */
1015	amdgpu_vm_adjust_size(adev, 64, 9, 1, 40);
1016
1017	/* Set the internal MC address mask
1018	 * This is the max address of the GPU's
1019	 * internal address space.
1020	 */
1021	adev->gmc.mc_mask = 0xffffffffffULL; /* 40 bit MC */
1022
1023	r = dma_set_mask_and_coherent(adev->dev, DMA_BIT_MASK(40));
1024	if (r) {
1025		pr_warn("No suitable DMA available\n");
1026		return r;
1027	}
1028	adev->need_swiotlb = drm_need_swiotlb(40);
1029
1030	r = gmc_v7_0_init_microcode(adev);
1031	if (r) {
1032		DRM_ERROR("Failed to load mc firmware!\n");
1033		return r;
1034	}
1035
1036	r = gmc_v7_0_mc_init(adev);
1037	if (r)
1038		return r;
1039
1040	amdgpu_gmc_get_vbios_allocations(adev);
1041
1042	/* Memory manager */
1043	r = amdgpu_bo_init(adev);
1044	if (r)
1045		return r;
1046
1047	r = gmc_v7_0_gart_init(adev);
1048	if (r)
1049		return r;
1050
1051	/*
1052	 * number of VMs
1053	 * VMID 0 is reserved for System
1054	 * amdgpu graphics/compute will use VMIDs 1-7
1055	 * amdkfd will use VMIDs 8-15
1056	 */
1057	adev->vm_manager.first_kfd_vmid = 8;
1058	amdgpu_vm_manager_init(adev);
1059
1060	/* base offset of vram pages */
1061	if (adev->flags & AMD_IS_APU) {
1062		u64 tmp = RREG32(mmMC_VM_FB_OFFSET);
1063
1064		tmp <<= 22;
1065		adev->vm_manager.vram_base_offset = tmp;
1066	} else {
1067		adev->vm_manager.vram_base_offset = 0;
1068	}
1069
1070	adev->gmc.vm_fault_info = kmalloc(sizeof(struct kfd_vm_fault_info),
1071					GFP_KERNEL);
1072	if (!adev->gmc.vm_fault_info)
1073		return -ENOMEM;
1074	atomic_set(&adev->gmc.vm_fault_info_updated, 0);
1075
1076	return 0;
1077}
1078
1079static int gmc_v7_0_sw_fini(void *handle)
1080{
1081	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1082
1083	amdgpu_gem_force_release(adev);
1084	amdgpu_vm_manager_fini(adev);
1085	kfree(adev->gmc.vm_fault_info);
1086	amdgpu_gart_table_vram_free(adev);
1087	amdgpu_bo_fini(adev);
1088	release_firmware(adev->gmc.fw);
1089	adev->gmc.fw = NULL;
1090
1091	return 0;
1092}
1093
1094static int gmc_v7_0_hw_init(void *handle)
1095{
1096	int r;
1097	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1098
1099	gmc_v7_0_init_golden_registers(adev);
1100
1101	gmc_v7_0_mc_program(adev);
1102
1103	if (!(adev->flags & AMD_IS_APU)) {
1104		r = gmc_v7_0_mc_load_microcode(adev);
1105		if (r) {
1106			DRM_ERROR("Failed to load MC firmware!\n");
1107			return r;
1108		}
1109	}
1110
1111	r = gmc_v7_0_gart_enable(adev);
1112	if (r)
1113		return r;
1114
1115	return r;
 
 
 
1116}
1117
1118static int gmc_v7_0_hw_fini(void *handle)
1119{
1120	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1121
1122	amdgpu_irq_put(adev, &adev->gmc.vm_fault, 0);
1123	gmc_v7_0_gart_disable(adev);
1124
1125	return 0;
1126}
1127
1128static int gmc_v7_0_suspend(void *handle)
1129{
1130	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1131
1132	gmc_v7_0_hw_fini(adev);
1133
1134	return 0;
1135}
1136
1137static int gmc_v7_0_resume(void *handle)
1138{
1139	int r;
1140	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1141
1142	r = gmc_v7_0_hw_init(adev);
1143	if (r)
1144		return r;
1145
1146	amdgpu_vmid_reset_all(adev);
1147
1148	return 0;
1149}
1150
1151static bool gmc_v7_0_is_idle(void *handle)
1152{
1153	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1154	u32 tmp = RREG32(mmSRBM_STATUS);
1155
1156	if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
1157		   SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK | SRBM_STATUS__VMC_BUSY_MASK))
1158		return false;
1159
1160	return true;
1161}
1162
1163static int gmc_v7_0_wait_for_idle(void *handle)
1164{
1165	unsigned i;
1166	u32 tmp;
1167	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1168
1169	for (i = 0; i < adev->usec_timeout; i++) {
1170		/* read MC_STATUS */
1171		tmp = RREG32(mmSRBM_STATUS) & (SRBM_STATUS__MCB_BUSY_MASK |
1172					       SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
1173					       SRBM_STATUS__MCC_BUSY_MASK |
1174					       SRBM_STATUS__MCD_BUSY_MASK |
1175					       SRBM_STATUS__VMC_BUSY_MASK);
1176		if (!tmp)
1177			return 0;
1178		udelay(1);
1179	}
1180	return -ETIMEDOUT;
1181
1182}
1183
1184static int gmc_v7_0_soft_reset(void *handle)
1185{
1186	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1187	u32 srbm_soft_reset = 0;
1188	u32 tmp = RREG32(mmSRBM_STATUS);
1189
1190	if (tmp & SRBM_STATUS__VMC_BUSY_MASK)
1191		srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset,
1192						SRBM_SOFT_RESET, SOFT_RESET_VMC, 1);
1193
1194	if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
1195		   SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK)) {
1196		if (!(adev->flags & AMD_IS_APU))
1197			srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset,
1198							SRBM_SOFT_RESET, SOFT_RESET_MC, 1);
1199	}
1200
1201	if (srbm_soft_reset) {
1202		gmc_v7_0_mc_stop(adev);
1203		if (gmc_v7_0_wait_for_idle((void *)adev)) {
1204			dev_warn(adev->dev, "Wait for GMC idle timed out !\n");
1205		}
1206
1207
1208		tmp = RREG32(mmSRBM_SOFT_RESET);
1209		tmp |= srbm_soft_reset;
1210		dev_info(adev->dev, "SRBM_SOFT_RESET=0x%08X\n", tmp);
1211		WREG32(mmSRBM_SOFT_RESET, tmp);
1212		tmp = RREG32(mmSRBM_SOFT_RESET);
1213
1214		udelay(50);
1215
1216		tmp &= ~srbm_soft_reset;
1217		WREG32(mmSRBM_SOFT_RESET, tmp);
1218		tmp = RREG32(mmSRBM_SOFT_RESET);
1219
1220		/* Wait a little for things to settle down */
1221		udelay(50);
1222
1223		gmc_v7_0_mc_resume(adev);
1224		udelay(50);
1225	}
1226
1227	return 0;
1228}
1229
1230static int gmc_v7_0_vm_fault_interrupt_state(struct amdgpu_device *adev,
1231					     struct amdgpu_irq_src *src,
1232					     unsigned type,
1233					     enum amdgpu_interrupt_state state)
1234{
1235	u32 tmp;
1236	u32 bits = (VM_CONTEXT1_CNTL__RANGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1237		    VM_CONTEXT1_CNTL__DUMMY_PAGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1238		    VM_CONTEXT1_CNTL__PDE0_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1239		    VM_CONTEXT1_CNTL__VALID_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1240		    VM_CONTEXT1_CNTL__READ_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1241		    VM_CONTEXT1_CNTL__WRITE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK);
1242
1243	switch (state) {
1244	case AMDGPU_IRQ_STATE_DISABLE:
1245		/* system context */
1246		tmp = RREG32(mmVM_CONTEXT0_CNTL);
1247		tmp &= ~bits;
1248		WREG32(mmVM_CONTEXT0_CNTL, tmp);
1249		/* VMs */
1250		tmp = RREG32(mmVM_CONTEXT1_CNTL);
1251		tmp &= ~bits;
1252		WREG32(mmVM_CONTEXT1_CNTL, tmp);
1253		break;
1254	case AMDGPU_IRQ_STATE_ENABLE:
1255		/* system context */
1256		tmp = RREG32(mmVM_CONTEXT0_CNTL);
1257		tmp |= bits;
1258		WREG32(mmVM_CONTEXT0_CNTL, tmp);
1259		/* VMs */
1260		tmp = RREG32(mmVM_CONTEXT1_CNTL);
1261		tmp |= bits;
1262		WREG32(mmVM_CONTEXT1_CNTL, tmp);
1263		break;
1264	default:
1265		break;
1266	}
1267
1268	return 0;
1269}
1270
1271static int gmc_v7_0_process_interrupt(struct amdgpu_device *adev,
1272				      struct amdgpu_irq_src *source,
1273				      struct amdgpu_iv_entry *entry)
1274{
1275	u32 addr, status, mc_client, vmid;
1276
1277	addr = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_ADDR);
1278	status = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_STATUS);
1279	mc_client = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_MCCLIENT);
1280	/* reset addr and status */
1281	WREG32_P(mmVM_CONTEXT1_CNTL2, 1, ~1);
1282
1283	if (!addr && !status)
1284		return 0;
1285
 
 
 
1286	if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_FIRST)
1287		gmc_v7_0_set_fault_enable_default(adev, false);
1288
1289	if (printk_ratelimit()) {
1290		dev_err(adev->dev, "GPU fault detected: %d 0x%08x\n",
1291			entry->src_id, entry->src_data[0]);
1292		dev_err(adev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_ADDR   0x%08X\n",
1293			addr);
1294		dev_err(adev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n",
1295			status);
1296		gmc_v7_0_vm_decode_fault(adev, status, addr, mc_client,
1297					 entry->pasid);
1298	}
1299
1300	vmid = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
1301			     VMID);
1302	if (amdgpu_amdkfd_is_kfd_vmid(adev, vmid)
1303		&& !atomic_read(&adev->gmc.vm_fault_info_updated)) {
1304		struct kfd_vm_fault_info *info = adev->gmc.vm_fault_info;
1305		u32 protections = REG_GET_FIELD(status,
1306					VM_CONTEXT1_PROTECTION_FAULT_STATUS,
1307					PROTECTIONS);
1308
1309		info->vmid = vmid;
1310		info->mc_id = REG_GET_FIELD(status,
1311					    VM_CONTEXT1_PROTECTION_FAULT_STATUS,
1312					    MEMORY_CLIENT_ID);
1313		info->status = status;
1314		info->page_addr = addr;
1315		info->prot_valid = protections & 0x7 ? true : false;
1316		info->prot_read = protections & 0x8 ? true : false;
1317		info->prot_write = protections & 0x10 ? true : false;
1318		info->prot_exec = protections & 0x20 ? true : false;
1319		mb();
1320		atomic_set(&adev->gmc.vm_fault_info_updated, 1);
1321	}
1322
1323	return 0;
1324}
1325
1326static int gmc_v7_0_set_clockgating_state(void *handle,
1327					  enum amd_clockgating_state state)
1328{
1329	bool gate = false;
1330	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1331
1332	if (state == AMD_CG_STATE_GATE)
1333		gate = true;
1334
1335	if (!(adev->flags & AMD_IS_APU)) {
1336		gmc_v7_0_enable_mc_mgcg(adev, gate);
1337		gmc_v7_0_enable_mc_ls(adev, gate);
1338	}
1339	gmc_v7_0_enable_bif_mgls(adev, gate);
1340	gmc_v7_0_enable_hdp_mgcg(adev, gate);
1341	gmc_v7_0_enable_hdp_ls(adev, gate);
1342
1343	return 0;
1344}
1345
1346static int gmc_v7_0_set_powergating_state(void *handle,
1347					  enum amd_powergating_state state)
1348{
1349	return 0;
1350}
1351
1352static const struct amd_ip_funcs gmc_v7_0_ip_funcs = {
1353	.name = "gmc_v7_0",
1354	.early_init = gmc_v7_0_early_init,
1355	.late_init = gmc_v7_0_late_init,
1356	.sw_init = gmc_v7_0_sw_init,
1357	.sw_fini = gmc_v7_0_sw_fini,
1358	.hw_init = gmc_v7_0_hw_init,
1359	.hw_fini = gmc_v7_0_hw_fini,
1360	.suspend = gmc_v7_0_suspend,
1361	.resume = gmc_v7_0_resume,
1362	.is_idle = gmc_v7_0_is_idle,
1363	.wait_for_idle = gmc_v7_0_wait_for_idle,
1364	.soft_reset = gmc_v7_0_soft_reset,
1365	.set_clockgating_state = gmc_v7_0_set_clockgating_state,
1366	.set_powergating_state = gmc_v7_0_set_powergating_state,
1367};
1368
1369static const struct amdgpu_gmc_funcs gmc_v7_0_gmc_funcs = {
1370	.flush_gpu_tlb = gmc_v7_0_flush_gpu_tlb,
1371	.flush_gpu_tlb_pasid = gmc_v7_0_flush_gpu_tlb_pasid,
1372	.emit_flush_gpu_tlb = gmc_v7_0_emit_flush_gpu_tlb,
1373	.emit_pasid_mapping = gmc_v7_0_emit_pasid_mapping,
1374	.set_prt = gmc_v7_0_set_prt,
1375	.get_vm_pde = gmc_v7_0_get_vm_pde,
1376	.get_vm_pte = gmc_v7_0_get_vm_pte,
1377	.get_vbios_fb_size = gmc_v7_0_get_vbios_fb_size,
1378};
1379
1380static const struct amdgpu_irq_src_funcs gmc_v7_0_irq_funcs = {
1381	.set = gmc_v7_0_vm_fault_interrupt_state,
1382	.process = gmc_v7_0_process_interrupt,
1383};
1384
1385static void gmc_v7_0_set_gmc_funcs(struct amdgpu_device *adev)
1386{
1387	adev->gmc.gmc_funcs = &gmc_v7_0_gmc_funcs;
1388}
1389
1390static void gmc_v7_0_set_irq_funcs(struct amdgpu_device *adev)
1391{
1392	adev->gmc.vm_fault.num_types = 1;
1393	adev->gmc.vm_fault.funcs = &gmc_v7_0_irq_funcs;
1394}
1395
1396const struct amdgpu_ip_block_version gmc_v7_0_ip_block =
1397{
1398	.type = AMD_IP_BLOCK_TYPE_GMC,
1399	.major = 7,
1400	.minor = 0,
1401	.rev = 0,
1402	.funcs = &gmc_v7_0_ip_funcs,
1403};
1404
1405const struct amdgpu_ip_block_version gmc_v7_4_ip_block =
1406{
1407	.type = AMD_IP_BLOCK_TYPE_GMC,
1408	.major = 7,
1409	.minor = 4,
1410	.rev = 0,
1411	.funcs = &gmc_v7_0_ip_funcs,
1412};