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v4.10.11
   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#include <linux/firmware.h>
  24#include "drmP.h"
 
 
 
  25#include "amdgpu.h"
  26#include "cikd.h"
  27#include "cik.h"
  28#include "gmc_v7_0.h"
  29#include "amdgpu_ucode.h"
 
 
  30
  31#include "bif/bif_4_1_d.h"
  32#include "bif/bif_4_1_sh_mask.h"
  33
  34#include "gmc/gmc_7_1_d.h"
  35#include "gmc/gmc_7_1_sh_mask.h"
  36
  37#include "oss/oss_2_0_d.h"
  38#include "oss/oss_2_0_sh_mask.h"
  39
  40static void gmc_v7_0_set_gart_funcs(struct amdgpu_device *adev);
 
 
 
 
 
 
 
  41static void gmc_v7_0_set_irq_funcs(struct amdgpu_device *adev);
  42static int gmc_v7_0_wait_for_idle(void *handle);
  43
  44MODULE_FIRMWARE("radeon/bonaire_mc.bin");
  45MODULE_FIRMWARE("radeon/hawaii_mc.bin");
  46MODULE_FIRMWARE("amdgpu/topaz_mc.bin");
  47
  48static const u32 golden_settings_iceland_a11[] =
  49{
  50	mmVM_PRT_APERTURE0_LOW_ADDR, 0x0fffffff, 0x0fffffff,
  51	mmVM_PRT_APERTURE1_LOW_ADDR, 0x0fffffff, 0x0fffffff,
  52	mmVM_PRT_APERTURE2_LOW_ADDR, 0x0fffffff, 0x0fffffff,
  53	mmVM_PRT_APERTURE3_LOW_ADDR, 0x0fffffff, 0x0fffffff
  54};
  55
  56static const u32 iceland_mgcg_cgcg_init[] =
  57{
  58	mmMC_MEM_POWER_LS, 0xffffffff, 0x00000104
  59};
  60
  61static void gmc_v7_0_init_golden_registers(struct amdgpu_device *adev)
  62{
  63	switch (adev->asic_type) {
  64	case CHIP_TOPAZ:
  65		amdgpu_program_register_sequence(adev,
  66						 iceland_mgcg_cgcg_init,
  67						 (const u32)ARRAY_SIZE(iceland_mgcg_cgcg_init));
  68		amdgpu_program_register_sequence(adev,
  69						 golden_settings_iceland_a11,
  70						 (const u32)ARRAY_SIZE(golden_settings_iceland_a11));
  71		break;
  72	default:
  73		break;
  74	}
  75}
  76
  77static void gmc_v7_0_mc_stop(struct amdgpu_device *adev,
  78			     struct amdgpu_mode_mc_save *save)
  79{
  80	u32 blackout;
  81
  82	if (adev->mode_info.num_crtc)
  83		amdgpu_display_stop_mc_access(adev, save);
  84
  85	gmc_v7_0_wait_for_idle((void *)adev);
  86
  87	blackout = RREG32(mmMC_SHARED_BLACKOUT_CNTL);
  88	if (REG_GET_FIELD(blackout, MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE) != 1) {
  89		/* Block CPU access */
  90		WREG32(mmBIF_FB_EN, 0);
  91		/* blackout the MC */
  92		blackout = REG_SET_FIELD(blackout,
  93					 MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE, 0);
  94		WREG32(mmMC_SHARED_BLACKOUT_CNTL, blackout | 1);
  95	}
  96	/* wait for the MC to settle */
  97	udelay(100);
  98}
  99
 100static void gmc_v7_0_mc_resume(struct amdgpu_device *adev,
 101			       struct amdgpu_mode_mc_save *save)
 102{
 103	u32 tmp;
 104
 105	/* unblackout the MC */
 106	tmp = RREG32(mmMC_SHARED_BLACKOUT_CNTL);
 107	tmp = REG_SET_FIELD(tmp, MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE, 0);
 108	WREG32(mmMC_SHARED_BLACKOUT_CNTL, tmp);
 109	/* allow CPU access */
 110	tmp = REG_SET_FIELD(0, BIF_FB_EN, FB_READ_EN, 1);
 111	tmp = REG_SET_FIELD(tmp, BIF_FB_EN, FB_WRITE_EN, 1);
 112	WREG32(mmBIF_FB_EN, tmp);
 113
 114	if (adev->mode_info.num_crtc)
 115		amdgpu_display_resume_mc_access(adev, save);
 116}
 117
 118/**
 119 * gmc_v7_0_init_microcode - load ucode images from disk
 120 *
 121 * @adev: amdgpu_device pointer
 122 *
 123 * Use the firmware interface to load the ucode images into
 124 * the driver (not loaded into hw).
 125 * Returns 0 on success, error on failure.
 126 */
 127static int gmc_v7_0_init_microcode(struct amdgpu_device *adev)
 128{
 129	const char *chip_name;
 130	char fw_name[30];
 131	int err;
 132
 133	DRM_DEBUG("\n");
 134
 135	switch (adev->asic_type) {
 136	case CHIP_BONAIRE:
 137		chip_name = "bonaire";
 138		break;
 139	case CHIP_HAWAII:
 140		chip_name = "hawaii";
 141		break;
 142	case CHIP_TOPAZ:
 143		chip_name = "topaz";
 144		break;
 145	case CHIP_KAVERI:
 146	case CHIP_KABINI:
 147	case CHIP_MULLINS:
 148		return 0;
 149	default: BUG();
 150	}
 151
 152	if (adev->asic_type == CHIP_TOPAZ)
 153		snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_mc.bin", chip_name);
 154	else
 155		snprintf(fw_name, sizeof(fw_name), "radeon/%s_mc.bin", chip_name);
 156
 157	err = request_firmware(&adev->mc.fw, fw_name, adev->dev);
 158	if (err)
 159		goto out;
 160	err = amdgpu_ucode_validate(adev->mc.fw);
 161
 162out:
 163	if (err) {
 164		printk(KERN_ERR
 165		       "cik_mc: Failed to load firmware \"%s\"\n",
 166		       fw_name);
 167		release_firmware(adev->mc.fw);
 168		adev->mc.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->mc.fw)
 190		return -EINVAL;
 191
 192	hdr = (const struct mc_firmware_header_v1_0 *)adev->mc.fw->data;
 193	amdgpu_ucode_print_mc_hdr(&hdr->header);
 194
 195	adev->mc.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->mc.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->mc.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_mc *mc)
 244{
 245	if (mc->mc_vram_size > 0xFFC0000000ULL) {
 246		/* leave room for at least 1024M GTT */
 247		dev_warn(adev->dev, "limiting VRAM\n");
 248		mc->real_vram_size = 0xFFC0000000ULL;
 249		mc->mc_vram_size = 0xFFC0000000ULL;
 250	}
 251	amdgpu_vram_location(adev, &adev->mc, 0);
 252	adev->mc.gtt_base_align = 0;
 253	amdgpu_gtt_location(adev, mc);
 254}
 255
 256/**
 257 * gmc_v7_0_mc_program - program the GPU memory controller
 258 *
 259 * @adev: amdgpu_device pointer
 260 *
 261 * Set the location of vram, gart, and AGP in the GPU's
 262 * physical address space (CIK).
 263 */
 264static void gmc_v7_0_mc_program(struct amdgpu_device *adev)
 265{
 266	struct amdgpu_mode_mc_save save;
 267	u32 tmp;
 268	int i, j;
 269
 270	/* Initialize HDP */
 271	for (i = 0, j = 0; i < 32; i++, j += 0x6) {
 272		WREG32((0xb05 + j), 0x00000000);
 273		WREG32((0xb06 + j), 0x00000000);
 274		WREG32((0xb07 + j), 0x00000000);
 275		WREG32((0xb08 + j), 0x00000000);
 276		WREG32((0xb09 + j), 0x00000000);
 277	}
 278	WREG32(mmHDP_REG_COHERENCY_FLUSH_CNTL, 0);
 279
 280	if (adev->mode_info.num_crtc)
 281		amdgpu_display_set_vga_render_state(adev, false);
 282
 283	gmc_v7_0_mc_stop(adev, &save);
 284	if (gmc_v7_0_wait_for_idle((void *)adev)) {
 285		dev_warn(adev->dev, "Wait for MC idle timedout !\n");
 286	}
 
 
 
 
 
 
 
 
 
 
 
 287	/* Update configuration */
 288	WREG32(mmMC_VM_SYSTEM_APERTURE_LOW_ADDR,
 289	       adev->mc.vram_start >> 12);
 290	WREG32(mmMC_VM_SYSTEM_APERTURE_HIGH_ADDR,
 291	       adev->mc.vram_end >> 12);
 292	WREG32(mmMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR,
 293	       adev->vram_scratch.gpu_addr >> 12);
 294	tmp = ((adev->mc.vram_end >> 24) & 0xFFFF) << 16;
 295	tmp |= ((adev->mc.vram_start >> 24) & 0xFFFF);
 296	WREG32(mmMC_VM_FB_LOCATION, tmp);
 297	/* XXX double check these! */
 298	WREG32(mmHDP_NONSURFACE_BASE, (adev->mc.vram_start >> 8));
 299	WREG32(mmHDP_NONSURFACE_INFO, (2 << 7) | (1 << 30));
 300	WREG32(mmHDP_NONSURFACE_SIZE, 0x3FFFFFFF);
 301	WREG32(mmMC_VM_AGP_BASE, 0);
 302	WREG32(mmMC_VM_AGP_TOP, 0x0FFFFFFF);
 303	WREG32(mmMC_VM_AGP_BOT, 0x0FFFFFFF);
 304	if (gmc_v7_0_wait_for_idle((void *)adev)) {
 305		dev_warn(adev->dev, "Wait for MC idle timedout !\n");
 306	}
 307	gmc_v7_0_mc_resume(adev, &save);
 308
 309	WREG32(mmBIF_FB_EN, BIF_FB_EN__FB_READ_EN_MASK | BIF_FB_EN__FB_WRITE_EN_MASK);
 310
 311	tmp = RREG32(mmHDP_MISC_CNTL);
 312	tmp = REG_SET_FIELD(tmp, HDP_MISC_CNTL, FLUSH_INVALIDATE_CACHE, 0);
 313	WREG32(mmHDP_MISC_CNTL, tmp);
 314
 315	tmp = RREG32(mmHDP_HOST_PATH_CNTL);
 316	WREG32(mmHDP_HOST_PATH_CNTL, tmp);
 317}
 318
 319/**
 320 * gmc_v7_0_mc_init - initialize the memory controller driver params
 321 *
 322 * @adev: amdgpu_device pointer
 323 *
 324 * Look up the amount of vram, vram width, and decide how to place
 325 * vram and gart within the GPU's physical address space (CIK).
 326 * Returns 0 for success.
 327 */
 328static int gmc_v7_0_mc_init(struct amdgpu_device *adev)
 329{
 330	u32 tmp;
 331	int chansize, numchan;
 332
 333	/* Get VRAM informations */
 334	tmp = RREG32(mmMC_ARB_RAMCFG);
 335	if (REG_GET_FIELD(tmp, MC_ARB_RAMCFG, CHANSIZE)) {
 336		chansize = 64;
 337	} else {
 338		chansize = 32;
 339	}
 340	tmp = RREG32(mmMC_SHARED_CHMAP);
 341	switch (REG_GET_FIELD(tmp, MC_SHARED_CHMAP, NOOFCHAN)) {
 342	case 0:
 343	default:
 344		numchan = 1;
 345		break;
 346	case 1:
 347		numchan = 2;
 348		break;
 349	case 2:
 350		numchan = 4;
 351		break;
 352	case 3:
 353		numchan = 8;
 354		break;
 355	case 4:
 356		numchan = 3;
 357		break;
 358	case 5:
 359		numchan = 6;
 360		break;
 361	case 6:
 362		numchan = 10;
 363		break;
 364	case 7:
 365		numchan = 12;
 366		break;
 367	case 8:
 368		numchan = 16;
 369		break;
 
 
 
 
 
 
 
 370	}
 371	adev->mc.vram_width = numchan * chansize;
 372	/* Could aper size report 0 ? */
 373	adev->mc.aper_base = pci_resource_start(adev->pdev, 0);
 374	adev->mc.aper_size = pci_resource_len(adev->pdev, 0);
 375	/* size in MB on si */
 376	adev->mc.mc_vram_size = RREG32(mmCONFIG_MEMSIZE) * 1024ULL * 1024ULL;
 377	adev->mc.real_vram_size = RREG32(mmCONFIG_MEMSIZE) * 1024ULL * 1024ULL;
 378	adev->mc.visible_vram_size = adev->mc.aper_size;
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 379
 380	/* In case the PCI BAR is larger than the actual amount of vram */
 381	if (adev->mc.visible_vram_size > adev->mc.real_vram_size)
 382		adev->mc.visible_vram_size = adev->mc.real_vram_size;
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 383
 384	/* unless the user had overridden it, set the gart
 385	 * size equal to the 1024 or vram, whichever is larger.
 386	 */
 387	if (amdgpu_gart_size == -1)
 388		adev->mc.gtt_size = max((1024ULL << 20), adev->mc.mc_vram_size);
 389	else
 390		adev->mc.gtt_size = (uint64_t)amdgpu_gart_size << 20;
 391
 392	gmc_v7_0_vram_gtt_location(adev, &adev->mc);
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 393
 394	return 0;
 395}
 396
 397/*
 398 * GART
 399 * VMID 0 is the physical GPU addresses as used by the kernel.
 400 * VMIDs 1-15 are used for userspace clients and are handled
 401 * by the amdgpu vm/hsa code.
 402 */
 403
 404/**
 405 * gmc_v7_0_gart_flush_gpu_tlb - gart tlb flush callback
 406 *
 407 * @adev: amdgpu_device pointer
 408 * @vmid: vm instance to flush
 409 *
 
 
 410 * Flush the TLB for the requested page table (CIK).
 411 */
 412static void gmc_v7_0_gart_flush_gpu_tlb(struct amdgpu_device *adev,
 413					uint32_t vmid)
 414{
 415	/* flush hdp cache */
 416	WREG32(mmHDP_MEM_COHERENCY_FLUSH_CNTL, 0);
 417
 418	/* bits 0-15 are the VM contexts0-15 */
 419	WREG32(mmVM_INVALIDATE_REQUEST, 1 << vmid);
 420}
 421
 422/**
 423 * gmc_v7_0_gart_set_pte_pde - update the page tables using MMIO
 424 *
 425 * @adev: amdgpu_device pointer
 426 * @cpu_pt_addr: cpu address of the page table
 427 * @gpu_page_idx: entry in the page table to update
 428 * @addr: dst addr to write into pte/pde
 429 * @flags: access flags
 430 *
 431 * Update the page tables using the CPU.
 432 */
 433static int gmc_v7_0_gart_set_pte_pde(struct amdgpu_device *adev,
 434				     void *cpu_pt_addr,
 435				     uint32_t gpu_page_idx,
 436				     uint64_t addr,
 437				     uint32_t flags)
 438{
 439	void __iomem *ptr = (void *)cpu_pt_addr;
 440	uint64_t value;
 441
 442	value = addr & 0xFFFFFFFFFFFFF000ULL;
 443	value |= flags;
 444	writeq(value, ptr + (gpu_page_idx * 8));
 445
 446	return 0;
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 447}
 448
 449/**
 450 * gmc_v8_0_set_fault_enable_default - update VM fault handling
 451 *
 452 * @adev: amdgpu_device pointer
 453 * @value: true redirects VM faults to the default page
 454 */
 455static void gmc_v7_0_set_fault_enable_default(struct amdgpu_device *adev,
 456					      bool value)
 457{
 458	u32 tmp;
 459
 460	tmp = RREG32(mmVM_CONTEXT1_CNTL);
 461	tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 462			    RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 463	tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 464			    DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 465	tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 466			    PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 467	tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 468			    VALID_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 469	tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 470			    READ_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 471	tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
 472			    WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
 473	WREG32(mmVM_CONTEXT1_CNTL, tmp);
 474}
 475
 476/**
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 477 * gmc_v7_0_gart_enable - gart enable
 478 *
 479 * @adev: amdgpu_device pointer
 480 *
 481 * This sets up the TLBs, programs the page tables for VMID0,
 482 * sets up the hw for VMIDs 1-15 which are allocated on
 483 * demand, and sets up the global locations for the LDS, GDS,
 484 * and GPUVM for FSA64 clients (CIK).
 485 * Returns 0 for success, errors for failure.
 486 */
 487static int gmc_v7_0_gart_enable(struct amdgpu_device *adev)
 488{
 
 489	int r, i;
 490	u32 tmp;
 491
 492	if (adev->gart.robj == NULL) {
 493		dev_err(adev->dev, "No VRAM object for PCIE GART.\n");
 494		return -EINVAL;
 495	}
 496	r = amdgpu_gart_table_vram_pin(adev);
 497	if (r)
 498		return r;
 
 
 
 499	/* Setup TLB control */
 500	tmp = RREG32(mmMC_VM_MX_L1_TLB_CNTL);
 501	tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 1);
 502	tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_FRAGMENT_PROCESSING, 1);
 503	tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, SYSTEM_ACCESS_MODE, 3);
 504	tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_ADVANCED_DRIVER_MODEL, 1);
 505	tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, SYSTEM_APERTURE_UNMAPPED_ACCESS, 0);
 506	WREG32(mmMC_VM_MX_L1_TLB_CNTL, tmp);
 507	/* Setup L2 cache */
 508	tmp = RREG32(mmVM_L2_CNTL);
 509	tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_CACHE, 1);
 510	tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_FRAGMENT_PROCESSING, 1);
 511	tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE, 1);
 512	tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_PDE0_CACHE_LRU_UPDATE_BY_WRITE, 1);
 513	tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, EFFECTIVE_L2_QUEUE_SIZE, 7);
 514	tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, CONTEXT1_IDENTITY_ACCESS_MODE, 1);
 515	tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_DEFAULT_PAGE_OUT_TO_SYSTEM_MEMORY, 1);
 516	WREG32(mmVM_L2_CNTL, tmp);
 517	tmp = REG_SET_FIELD(0, VM_L2_CNTL2, INVALIDATE_ALL_L1_TLBS, 1);
 518	tmp = REG_SET_FIELD(tmp, VM_L2_CNTL2, INVALIDATE_L2_CACHE, 1);
 519	WREG32(mmVM_L2_CNTL2, tmp);
 
 
 520	tmp = RREG32(mmVM_L2_CNTL3);
 521	tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, L2_CACHE_BIGK_ASSOCIATIVITY, 1);
 522	tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, BANK_SELECT, 4);
 523	tmp = REG_SET_FIELD(tmp, VM_L2_CNTL3, L2_CACHE_BIGK_FRAGMENT_SIZE, 4);
 524	WREG32(mmVM_L2_CNTL3, tmp);
 525	/* setup context0 */
 526	WREG32(mmVM_CONTEXT0_PAGE_TABLE_START_ADDR, adev->mc.gtt_start >> 12);
 527	WREG32(mmVM_CONTEXT0_PAGE_TABLE_END_ADDR, adev->mc.gtt_end >> 12);
 528	WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR, adev->gart.table_addr >> 12);
 529	WREG32(mmVM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR,
 530			(u32)(adev->dummy_page.addr >> 12));
 531	WREG32(mmVM_CONTEXT0_CNTL2, 0);
 532	tmp = RREG32(mmVM_CONTEXT0_CNTL);
 533	tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, ENABLE_CONTEXT, 1);
 534	tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, PAGE_TABLE_DEPTH, 0);
 535	tmp = REG_SET_FIELD(tmp, VM_CONTEXT0_CNTL, RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
 536	WREG32(mmVM_CONTEXT0_CNTL, tmp);
 537
 538	WREG32(0x575, 0);
 539	WREG32(0x576, 0);
 540	WREG32(0x577, 0);
 541
 542	/* empty context1-15 */
 543	/* FIXME start with 4G, once using 2 level pt switch to full
 544	 * vm size space
 545	 */
 546	/* set vm size, must be a multiple of 4 */
 547	WREG32(mmVM_CONTEXT1_PAGE_TABLE_START_ADDR, 0);
 548	WREG32(mmVM_CONTEXT1_PAGE_TABLE_END_ADDR, adev->vm_manager.max_pfn - 1);
 549	for (i = 1; i < 16; i++) {
 550		if (i < 8)
 551			WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + i,
 552			       adev->gart.table_addr >> 12);
 553		else
 554			WREG32(mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + i - 8,
 555			       adev->gart.table_addr >> 12);
 556	}
 557
 558	/* enable context1-15 */
 559	WREG32(mmVM_CONTEXT1_PROTECTION_FAULT_DEFAULT_ADDR,
 560	       (u32)(adev->dummy_page.addr >> 12));
 561	WREG32(mmVM_CONTEXT1_CNTL2, 4);
 562	tmp = RREG32(mmVM_CONTEXT1_CNTL);
 563	tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, ENABLE_CONTEXT, 1);
 564	tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, PAGE_TABLE_DEPTH, 1);
 565	tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL, PAGE_TABLE_BLOCK_SIZE,
 566			    amdgpu_vm_block_size - 9);
 567	WREG32(mmVM_CONTEXT1_CNTL, tmp);
 568	if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_ALWAYS)
 569		gmc_v7_0_set_fault_enable_default(adev, false);
 570	else
 571		gmc_v7_0_set_fault_enable_default(adev, true);
 572
 573	if (adev->asic_type == CHIP_KAVERI) {
 574		tmp = RREG32(mmCHUB_CONTROL);
 575		tmp &= ~BYPASS_VM;
 576		WREG32(mmCHUB_CONTROL, tmp);
 577	}
 578
 579	gmc_v7_0_gart_flush_gpu_tlb(adev, 0);
 580	DRM_INFO("PCIE GART of %uM enabled (table at 0x%016llX).\n",
 581		 (unsigned)(adev->mc.gtt_size >> 20),
 582		 (unsigned long long)adev->gart.table_addr);
 583	adev->gart.ready = true;
 584	return 0;
 585}
 586
 587static int gmc_v7_0_gart_init(struct amdgpu_device *adev)
 588{
 589	int r;
 590
 591	if (adev->gart.robj) {
 592		WARN(1, "R600 PCIE GART already initialized\n");
 593		return 0;
 594	}
 595	/* Initialize common gart structure */
 596	r = amdgpu_gart_init(adev);
 597	if (r)
 598		return r;
 599	adev->gart.table_size = adev->gart.num_gpu_pages * 8;
 
 600	return amdgpu_gart_table_vram_alloc(adev);
 601}
 602
 603/**
 604 * gmc_v7_0_gart_disable - gart disable
 605 *
 606 * @adev: amdgpu_device pointer
 607 *
 608 * This disables all VM page table (CIK).
 609 */
 610static void gmc_v7_0_gart_disable(struct amdgpu_device *adev)
 611{
 612	u32 tmp;
 613
 614	/* Disable all tables */
 615	WREG32(mmVM_CONTEXT0_CNTL, 0);
 616	WREG32(mmVM_CONTEXT1_CNTL, 0);
 617	/* Setup TLB control */
 618	tmp = RREG32(mmMC_VM_MX_L1_TLB_CNTL);
 619	tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 0);
 620	tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_L1_FRAGMENT_PROCESSING, 0);
 621	tmp = REG_SET_FIELD(tmp, MC_VM_MX_L1_TLB_CNTL, ENABLE_ADVANCED_DRIVER_MODEL, 0);
 622	WREG32(mmMC_VM_MX_L1_TLB_CNTL, tmp);
 623	/* Setup L2 cache */
 624	tmp = RREG32(mmVM_L2_CNTL);
 625	tmp = REG_SET_FIELD(tmp, VM_L2_CNTL, ENABLE_L2_CACHE, 0);
 626	WREG32(mmVM_L2_CNTL, tmp);
 627	WREG32(mmVM_L2_CNTL2, 0);
 628	amdgpu_gart_table_vram_unpin(adev);
 629}
 630
 631/**
 632 * gmc_v7_0_gart_fini - vm fini callback
 633 *
 634 * @adev: amdgpu_device pointer
 635 *
 636 * Tears down the driver GART/VM setup (CIK).
 637 */
 638static void gmc_v7_0_gart_fini(struct amdgpu_device *adev)
 639{
 640	amdgpu_gart_table_vram_free(adev);
 641	amdgpu_gart_fini(adev);
 642}
 643
 644/*
 645 * vm
 646 * VMID 0 is the physical GPU addresses as used by the kernel.
 647 * VMIDs 1-15 are used for userspace clients and are handled
 648 * by the amdgpu vm/hsa code.
 649 */
 650/**
 651 * gmc_v7_0_vm_init - cik vm init callback
 652 *
 653 * @adev: amdgpu_device pointer
 654 *
 655 * Inits cik specific vm parameters (number of VMs, base of vram for
 656 * VMIDs 1-15) (CIK).
 657 * Returns 0 for success.
 658 */
 659static int gmc_v7_0_vm_init(struct amdgpu_device *adev)
 660{
 661	/*
 662	 * number of VMs
 663	 * VMID 0 is reserved for System
 664	 * amdgpu graphics/compute will use VMIDs 1-7
 665	 * amdkfd will use VMIDs 8-15
 666	 */
 667	adev->vm_manager.num_ids = AMDGPU_NUM_OF_VMIDS;
 668	amdgpu_vm_manager_init(adev);
 669
 670	/* base offset of vram pages */
 671	if (adev->flags & AMD_IS_APU) {
 672		u64 tmp = RREG32(mmMC_VM_FB_OFFSET);
 673		tmp <<= 22;
 674		adev->vm_manager.vram_base_offset = tmp;
 675	} else
 676		adev->vm_manager.vram_base_offset = 0;
 677
 678	return 0;
 679}
 680
 681/**
 682 * gmc_v7_0_vm_fini - cik vm fini callback
 683 *
 684 * @adev: amdgpu_device pointer
 685 *
 686 * Tear down any asic specific VM setup (CIK).
 687 */
 688static void gmc_v7_0_vm_fini(struct amdgpu_device *adev)
 689{
 690}
 691
 692/**
 693 * gmc_v7_0_vm_decode_fault - print human readable fault info
 694 *
 695 * @adev: amdgpu_device pointer
 696 * @status: VM_CONTEXT1_PROTECTION_FAULT_STATUS register value
 697 * @addr: VM_CONTEXT1_PROTECTION_FAULT_ADDR register value
 
 
 698 *
 699 * Print human readable fault information (CIK).
 700 */
 701static void gmc_v7_0_vm_decode_fault(struct amdgpu_device *adev,
 702				     u32 status, u32 addr, u32 mc_client)
 703{
 704	u32 mc_id;
 705	u32 vmid = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS, VMID);
 706	u32 protections = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
 707					PROTECTIONS);
 708	char block[5] = { mc_client >> 24, (mc_client >> 16) & 0xff,
 709		(mc_client >> 8) & 0xff, mc_client & 0xff, 0 };
 
 710
 711	mc_id = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
 712			      MEMORY_CLIENT_ID);
 713
 714	dev_err(adev->dev, "VM fault (0x%02x, vmid %d) at page %u, %s from '%s' (0x%08x) (%d)\n",
 715	       protections, vmid, addr,
 716	       REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
 717			     MEMORY_CLIENT_RW) ?
 718	       "write" : "read", block, mc_client, mc_id);
 719}
 720
 721
 722static const u32 mc_cg_registers[] = {
 723	mmMC_HUB_MISC_HUB_CG,
 724	mmMC_HUB_MISC_SIP_CG,
 725	mmMC_HUB_MISC_VM_CG,
 726	mmMC_XPB_CLK_GAT,
 727	mmATC_MISC_CG,
 728	mmMC_CITF_MISC_WR_CG,
 729	mmMC_CITF_MISC_RD_CG,
 730	mmMC_CITF_MISC_VM_CG,
 731	mmVM_L2_CG,
 732};
 733
 734static const u32 mc_cg_ls_en[] = {
 735	MC_HUB_MISC_HUB_CG__MEM_LS_ENABLE_MASK,
 736	MC_HUB_MISC_SIP_CG__MEM_LS_ENABLE_MASK,
 737	MC_HUB_MISC_VM_CG__MEM_LS_ENABLE_MASK,
 738	MC_XPB_CLK_GAT__MEM_LS_ENABLE_MASK,
 739	ATC_MISC_CG__MEM_LS_ENABLE_MASK,
 740	MC_CITF_MISC_WR_CG__MEM_LS_ENABLE_MASK,
 741	MC_CITF_MISC_RD_CG__MEM_LS_ENABLE_MASK,
 742	MC_CITF_MISC_VM_CG__MEM_LS_ENABLE_MASK,
 743	VM_L2_CG__MEM_LS_ENABLE_MASK,
 744};
 745
 746static const u32 mc_cg_en[] = {
 747	MC_HUB_MISC_HUB_CG__ENABLE_MASK,
 748	MC_HUB_MISC_SIP_CG__ENABLE_MASK,
 749	MC_HUB_MISC_VM_CG__ENABLE_MASK,
 750	MC_XPB_CLK_GAT__ENABLE_MASK,
 751	ATC_MISC_CG__ENABLE_MASK,
 752	MC_CITF_MISC_WR_CG__ENABLE_MASK,
 753	MC_CITF_MISC_RD_CG__ENABLE_MASK,
 754	MC_CITF_MISC_VM_CG__ENABLE_MASK,
 755	VM_L2_CG__ENABLE_MASK,
 756};
 757
 758static void gmc_v7_0_enable_mc_ls(struct amdgpu_device *adev,
 759				  bool enable)
 760{
 761	int i;
 762	u32 orig, data;
 763
 764	for (i = 0; i < ARRAY_SIZE(mc_cg_registers); i++) {
 765		orig = data = RREG32(mc_cg_registers[i]);
 766		if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_LS))
 767			data |= mc_cg_ls_en[i];
 768		else
 769			data &= ~mc_cg_ls_en[i];
 770		if (data != orig)
 771			WREG32(mc_cg_registers[i], data);
 772	}
 773}
 774
 775static void gmc_v7_0_enable_mc_mgcg(struct amdgpu_device *adev,
 776				    bool enable)
 777{
 778	int i;
 779	u32 orig, data;
 780
 781	for (i = 0; i < ARRAY_SIZE(mc_cg_registers); i++) {
 782		orig = data = RREG32(mc_cg_registers[i]);
 783		if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_MGCG))
 784			data |= mc_cg_en[i];
 785		else
 786			data &= ~mc_cg_en[i];
 787		if (data != orig)
 788			WREG32(mc_cg_registers[i], data);
 789	}
 790}
 791
 792static void gmc_v7_0_enable_bif_mgls(struct amdgpu_device *adev,
 793				     bool enable)
 794{
 795	u32 orig, data;
 796
 797	orig = data = RREG32_PCIE(ixPCIE_CNTL2);
 798
 799	if (enable && (adev->cg_flags & AMD_CG_SUPPORT_BIF_LS)) {
 800		data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_LS_EN, 1);
 801		data = REG_SET_FIELD(data, PCIE_CNTL2, MST_MEM_LS_EN, 1);
 802		data = REG_SET_FIELD(data, PCIE_CNTL2, REPLAY_MEM_LS_EN, 1);
 803		data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_AGGRESSIVE_LS_EN, 1);
 804	} else {
 805		data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_LS_EN, 0);
 806		data = REG_SET_FIELD(data, PCIE_CNTL2, MST_MEM_LS_EN, 0);
 807		data = REG_SET_FIELD(data, PCIE_CNTL2, REPLAY_MEM_LS_EN, 0);
 808		data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_AGGRESSIVE_LS_EN, 0);
 809	}
 810
 811	if (orig != data)
 812		WREG32_PCIE(ixPCIE_CNTL2, data);
 813}
 814
 815static void gmc_v7_0_enable_hdp_mgcg(struct amdgpu_device *adev,
 816				     bool enable)
 817{
 818	u32 orig, data;
 819
 820	orig = data = RREG32(mmHDP_HOST_PATH_CNTL);
 821
 822	if (enable && (adev->cg_flags & AMD_CG_SUPPORT_HDP_MGCG))
 823		data = REG_SET_FIELD(data, HDP_HOST_PATH_CNTL, CLOCK_GATING_DIS, 0);
 824	else
 825		data = REG_SET_FIELD(data, HDP_HOST_PATH_CNTL, CLOCK_GATING_DIS, 1);
 826
 827	if (orig != data)
 828		WREG32(mmHDP_HOST_PATH_CNTL, data);
 829}
 830
 831static void gmc_v7_0_enable_hdp_ls(struct amdgpu_device *adev,
 832				   bool enable)
 833{
 834	u32 orig, data;
 835
 836	orig = data = RREG32(mmHDP_MEM_POWER_LS);
 837
 838	if (enable && (adev->cg_flags & AMD_CG_SUPPORT_HDP_LS))
 839		data = REG_SET_FIELD(data, HDP_MEM_POWER_LS, LS_ENABLE, 1);
 840	else
 841		data = REG_SET_FIELD(data, HDP_MEM_POWER_LS, LS_ENABLE, 0);
 842
 843	if (orig != data)
 844		WREG32(mmHDP_MEM_POWER_LS, data);
 845}
 846
 847static int gmc_v7_0_convert_vram_type(int mc_seq_vram_type)
 848{
 849	switch (mc_seq_vram_type) {
 850	case MC_SEQ_MISC0__MT__GDDR1:
 851		return AMDGPU_VRAM_TYPE_GDDR1;
 852	case MC_SEQ_MISC0__MT__DDR2:
 853		return AMDGPU_VRAM_TYPE_DDR2;
 854	case MC_SEQ_MISC0__MT__GDDR3:
 855		return AMDGPU_VRAM_TYPE_GDDR3;
 856	case MC_SEQ_MISC0__MT__GDDR4:
 857		return AMDGPU_VRAM_TYPE_GDDR4;
 858	case MC_SEQ_MISC0__MT__GDDR5:
 859		return AMDGPU_VRAM_TYPE_GDDR5;
 860	case MC_SEQ_MISC0__MT__HBM:
 861		return AMDGPU_VRAM_TYPE_HBM;
 862	case MC_SEQ_MISC0__MT__DDR3:
 863		return AMDGPU_VRAM_TYPE_DDR3;
 864	default:
 865		return AMDGPU_VRAM_TYPE_UNKNOWN;
 866	}
 867}
 868
 869static int gmc_v7_0_early_init(void *handle)
 870{
 871	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 872
 873	gmc_v7_0_set_gart_funcs(adev);
 874	gmc_v7_0_set_irq_funcs(adev);
 875
 
 
 
 
 
 
 
 
 876	return 0;
 877}
 878
 879static int gmc_v7_0_late_init(void *handle)
 880{
 881	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 882
 883	if (amdgpu_vm_fault_stop != AMDGPU_VM_FAULT_STOP_ALWAYS)
 884		return amdgpu_irq_get(adev, &adev->mc.vm_fault, 0);
 885	else
 886		return 0;
 887}
 888
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 889static int gmc_v7_0_sw_init(void *handle)
 890{
 891	int r;
 892	int dma_bits;
 893	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 894
 
 
 895	if (adev->flags & AMD_IS_APU) {
 896		adev->mc.vram_type = AMDGPU_VRAM_TYPE_UNKNOWN;
 897	} else {
 898		u32 tmp = RREG32(mmMC_SEQ_MISC0);
 899		tmp &= MC_SEQ_MISC0__MT__MASK;
 900		adev->mc.vram_type = gmc_v7_0_convert_vram_type(tmp);
 901	}
 902
 903	r = amdgpu_irq_add_id(adev, 146, &adev->mc.vm_fault);
 904	if (r)
 905		return r;
 906
 907	r = amdgpu_irq_add_id(adev, 147, &adev->mc.vm_fault);
 908	if (r)
 909		return r;
 910
 911	/* Adjust VM size here.
 912	 * Currently set to 4GB ((1 << 20) 4k pages).
 913	 * Max GPUVM size for cayman and SI is 40 bits.
 914	 */
 915	adev->vm_manager.max_pfn = amdgpu_vm_size << 18;
 916
 917	/* Set the internal MC address mask
 918	 * This is the max address of the GPU's
 919	 * internal address space.
 920	 */
 921	adev->mc.mc_mask = 0xffffffffffULL; /* 40 bit MC */
 922
 923	/* set DMA mask + need_dma32 flags.
 924	 * PCIE - can handle 40-bits.
 925	 * IGP - can handle 40-bits
 926	 * PCI - dma32 for legacy pci gart, 40 bits on newer asics
 927	 */
 928	adev->need_dma32 = false;
 929	dma_bits = adev->need_dma32 ? 32 : 40;
 930	r = pci_set_dma_mask(adev->pdev, DMA_BIT_MASK(dma_bits));
 931	if (r) {
 932		adev->need_dma32 = true;
 933		dma_bits = 32;
 934		printk(KERN_WARNING "amdgpu: No suitable DMA available.\n");
 935	}
 936	r = pci_set_consistent_dma_mask(adev->pdev, DMA_BIT_MASK(dma_bits));
 937	if (r) {
 938		pci_set_consistent_dma_mask(adev->pdev, DMA_BIT_MASK(32));
 939		printk(KERN_WARNING "amdgpu: No coherent DMA available.\n");
 940	}
 
 941
 942	r = gmc_v7_0_init_microcode(adev);
 943	if (r) {
 944		DRM_ERROR("Failed to load mc firmware!\n");
 945		return r;
 946	}
 947
 948	r = gmc_v7_0_mc_init(adev);
 949	if (r)
 950		return r;
 951
 
 
 952	/* Memory manager */
 953	r = amdgpu_bo_init(adev);
 954	if (r)
 955		return r;
 956
 957	r = gmc_v7_0_gart_init(adev);
 958	if (r)
 959		return r;
 960
 961	if (!adev->vm_manager.enabled) {
 962		r = gmc_v7_0_vm_init(adev);
 963		if (r) {
 964			dev_err(adev->dev, "vm manager initialization failed (%d).\n", r);
 965			return r;
 966		}
 967		adev->vm_manager.enabled = true;
 
 
 
 
 
 
 
 
 
 
 968	}
 969
 970	return r;
 
 
 
 
 
 
 971}
 972
 973static int gmc_v7_0_sw_fini(void *handle)
 974{
 975	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 976
 977	if (adev->vm_manager.enabled) {
 978		amdgpu_vm_manager_fini(adev);
 979		gmc_v7_0_vm_fini(adev);
 980		adev->vm_manager.enabled = false;
 981	}
 982	gmc_v7_0_gart_fini(adev);
 983	amdgpu_gem_force_release(adev);
 
 
 
 984	amdgpu_bo_fini(adev);
 
 
 985
 986	return 0;
 987}
 988
 989static int gmc_v7_0_hw_init(void *handle)
 990{
 991	int r;
 992	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
 993
 994	gmc_v7_0_init_golden_registers(adev);
 995
 996	gmc_v7_0_mc_program(adev);
 997
 998	if (!(adev->flags & AMD_IS_APU)) {
 999		r = gmc_v7_0_mc_load_microcode(adev);
1000		if (r) {
1001			DRM_ERROR("Failed to load MC firmware!\n");
1002			return r;
1003		}
1004	}
1005
1006	r = gmc_v7_0_gart_enable(adev);
1007	if (r)
1008		return r;
1009
1010	return r;
1011}
1012
1013static int gmc_v7_0_hw_fini(void *handle)
1014{
1015	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1016
1017	amdgpu_irq_put(adev, &adev->mc.vm_fault, 0);
1018	gmc_v7_0_gart_disable(adev);
1019
1020	return 0;
1021}
1022
1023static int gmc_v7_0_suspend(void *handle)
1024{
1025	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1026
1027	if (adev->vm_manager.enabled) {
1028		gmc_v7_0_vm_fini(adev);
1029		adev->vm_manager.enabled = false;
1030	}
1031	gmc_v7_0_hw_fini(adev);
1032
1033	return 0;
1034}
1035
1036static int gmc_v7_0_resume(void *handle)
1037{
1038	int r;
1039	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1040
1041	r = gmc_v7_0_hw_init(adev);
1042	if (r)
1043		return r;
1044
1045	if (!adev->vm_manager.enabled) {
1046		r = gmc_v7_0_vm_init(adev);
1047		if (r) {
1048			dev_err(adev->dev, "vm manager initialization failed (%d).\n", r);
1049			return r;
1050		}
1051		adev->vm_manager.enabled = true;
1052	}
1053
1054	return r;
1055}
1056
1057static bool gmc_v7_0_is_idle(void *handle)
1058{
1059	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1060	u32 tmp = RREG32(mmSRBM_STATUS);
1061
1062	if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
1063		   SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK | SRBM_STATUS__VMC_BUSY_MASK))
1064		return false;
1065
1066	return true;
1067}
1068
1069static int gmc_v7_0_wait_for_idle(void *handle)
1070{
1071	unsigned i;
1072	u32 tmp;
1073	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1074
1075	for (i = 0; i < adev->usec_timeout; i++) {
1076		/* read MC_STATUS */
1077		tmp = RREG32(mmSRBM_STATUS) & (SRBM_STATUS__MCB_BUSY_MASK |
1078					       SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
1079					       SRBM_STATUS__MCC_BUSY_MASK |
1080					       SRBM_STATUS__MCD_BUSY_MASK |
1081					       SRBM_STATUS__VMC_BUSY_MASK);
1082		if (!tmp)
1083			return 0;
1084		udelay(1);
1085	}
1086	return -ETIMEDOUT;
1087
1088}
1089
1090static int gmc_v7_0_soft_reset(void *handle)
1091{
1092	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1093	struct amdgpu_mode_mc_save save;
1094	u32 srbm_soft_reset = 0;
1095	u32 tmp = RREG32(mmSRBM_STATUS);
1096
1097	if (tmp & SRBM_STATUS__VMC_BUSY_MASK)
1098		srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset,
1099						SRBM_SOFT_RESET, SOFT_RESET_VMC, 1);
1100
1101	if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
1102		   SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK)) {
1103		if (!(adev->flags & AMD_IS_APU))
1104			srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset,
1105							SRBM_SOFT_RESET, SOFT_RESET_MC, 1);
1106	}
1107
1108	if (srbm_soft_reset) {
1109		gmc_v7_0_mc_stop(adev, &save);
1110		if (gmc_v7_0_wait_for_idle((void *)adev)) {
1111			dev_warn(adev->dev, "Wait for GMC idle timed out !\n");
1112		}
1113
1114
1115		tmp = RREG32(mmSRBM_SOFT_RESET);
1116		tmp |= srbm_soft_reset;
1117		dev_info(adev->dev, "SRBM_SOFT_RESET=0x%08X\n", tmp);
1118		WREG32(mmSRBM_SOFT_RESET, tmp);
1119		tmp = RREG32(mmSRBM_SOFT_RESET);
1120
1121		udelay(50);
1122
1123		tmp &= ~srbm_soft_reset;
1124		WREG32(mmSRBM_SOFT_RESET, tmp);
1125		tmp = RREG32(mmSRBM_SOFT_RESET);
1126
1127		/* Wait a little for things to settle down */
1128		udelay(50);
1129
1130		gmc_v7_0_mc_resume(adev, &save);
1131		udelay(50);
1132	}
1133
1134	return 0;
1135}
1136
1137static int gmc_v7_0_vm_fault_interrupt_state(struct amdgpu_device *adev,
1138					     struct amdgpu_irq_src *src,
1139					     unsigned type,
1140					     enum amdgpu_interrupt_state state)
1141{
1142	u32 tmp;
1143	u32 bits = (VM_CONTEXT1_CNTL__RANGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1144		    VM_CONTEXT1_CNTL__DUMMY_PAGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1145		    VM_CONTEXT1_CNTL__PDE0_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1146		    VM_CONTEXT1_CNTL__VALID_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1147		    VM_CONTEXT1_CNTL__READ_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1148		    VM_CONTEXT1_CNTL__WRITE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK);
1149
1150	switch (state) {
1151	case AMDGPU_IRQ_STATE_DISABLE:
1152		/* system context */
1153		tmp = RREG32(mmVM_CONTEXT0_CNTL);
1154		tmp &= ~bits;
1155		WREG32(mmVM_CONTEXT0_CNTL, tmp);
1156		/* VMs */
1157		tmp = RREG32(mmVM_CONTEXT1_CNTL);
1158		tmp &= ~bits;
1159		WREG32(mmVM_CONTEXT1_CNTL, tmp);
1160		break;
1161	case AMDGPU_IRQ_STATE_ENABLE:
1162		/* system context */
1163		tmp = RREG32(mmVM_CONTEXT0_CNTL);
1164		tmp |= bits;
1165		WREG32(mmVM_CONTEXT0_CNTL, tmp);
1166		/* VMs */
1167		tmp = RREG32(mmVM_CONTEXT1_CNTL);
1168		tmp |= bits;
1169		WREG32(mmVM_CONTEXT1_CNTL, tmp);
1170		break;
1171	default:
1172		break;
1173	}
1174
1175	return 0;
1176}
1177
1178static int gmc_v7_0_process_interrupt(struct amdgpu_device *adev,
1179				      struct amdgpu_irq_src *source,
1180				      struct amdgpu_iv_entry *entry)
1181{
1182	u32 addr, status, mc_client;
1183
1184	addr = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_ADDR);
1185	status = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_STATUS);
1186	mc_client = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_MCCLIENT);
1187	/* reset addr and status */
1188	WREG32_P(mmVM_CONTEXT1_CNTL2, 1, ~1);
1189
1190	if (!addr && !status)
1191		return 0;
1192
1193	if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_FIRST)
1194		gmc_v7_0_set_fault_enable_default(adev, false);
1195
1196	if (printk_ratelimit()) {
1197		dev_err(adev->dev, "GPU fault detected: %d 0x%08x\n",
1198			entry->src_id, entry->src_data);
1199		dev_err(adev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_ADDR   0x%08X\n",
1200			addr);
1201		dev_err(adev->dev, "  VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n",
1202			status);
1203		gmc_v7_0_vm_decode_fault(adev, status, addr, mc_client);
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
1204	}
1205
1206	return 0;
1207}
1208
1209static int gmc_v7_0_set_clockgating_state(void *handle,
1210					  enum amd_clockgating_state state)
1211{
1212	bool gate = false;
1213	struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1214
1215	if (state == AMD_CG_STATE_GATE)
1216		gate = true;
1217
1218	if (!(adev->flags & AMD_IS_APU)) {
1219		gmc_v7_0_enable_mc_mgcg(adev, gate);
1220		gmc_v7_0_enable_mc_ls(adev, gate);
1221	}
1222	gmc_v7_0_enable_bif_mgls(adev, gate);
1223	gmc_v7_0_enable_hdp_mgcg(adev, gate);
1224	gmc_v7_0_enable_hdp_ls(adev, gate);
1225
1226	return 0;
1227}
1228
1229static int gmc_v7_0_set_powergating_state(void *handle,
1230					  enum amd_powergating_state state)
1231{
1232	return 0;
1233}
1234
1235static const struct amd_ip_funcs gmc_v7_0_ip_funcs = {
1236	.name = "gmc_v7_0",
1237	.early_init = gmc_v7_0_early_init,
1238	.late_init = gmc_v7_0_late_init,
1239	.sw_init = gmc_v7_0_sw_init,
1240	.sw_fini = gmc_v7_0_sw_fini,
1241	.hw_init = gmc_v7_0_hw_init,
1242	.hw_fini = gmc_v7_0_hw_fini,
1243	.suspend = gmc_v7_0_suspend,
1244	.resume = gmc_v7_0_resume,
1245	.is_idle = gmc_v7_0_is_idle,
1246	.wait_for_idle = gmc_v7_0_wait_for_idle,
1247	.soft_reset = gmc_v7_0_soft_reset,
1248	.set_clockgating_state = gmc_v7_0_set_clockgating_state,
1249	.set_powergating_state = gmc_v7_0_set_powergating_state,
1250};
1251
1252static const struct amdgpu_gart_funcs gmc_v7_0_gart_funcs = {
1253	.flush_gpu_tlb = gmc_v7_0_gart_flush_gpu_tlb,
1254	.set_pte_pde = gmc_v7_0_gart_set_pte_pde,
 
 
 
 
 
 
1255};
1256
1257static const struct amdgpu_irq_src_funcs gmc_v7_0_irq_funcs = {
1258	.set = gmc_v7_0_vm_fault_interrupt_state,
1259	.process = gmc_v7_0_process_interrupt,
1260};
1261
1262static void gmc_v7_0_set_gart_funcs(struct amdgpu_device *adev)
1263{
1264	if (adev->gart.gart_funcs == NULL)
1265		adev->gart.gart_funcs = &gmc_v7_0_gart_funcs;
1266}
1267
1268static void gmc_v7_0_set_irq_funcs(struct amdgpu_device *adev)
1269{
1270	adev->mc.vm_fault.num_types = 1;
1271	adev->mc.vm_fault.funcs = &gmc_v7_0_irq_funcs;
1272}
1273
1274const struct amdgpu_ip_block_version gmc_v7_0_ip_block =
1275{
1276	.type = AMD_IP_BLOCK_TYPE_GMC,
1277	.major = 7,
1278	.minor = 0,
1279	.rev = 0,
1280	.funcs = &gmc_v7_0_ip_funcs,
1281};
1282
1283const struct amdgpu_ip_block_version gmc_v7_4_ip_block =
1284{
1285	.type = AMD_IP_BLOCK_TYPE_GMC,
1286	.major = 7,
1287	.minor = 4,
1288	.rev = 0,
1289	.funcs = &gmc_v7_0_ip_funcs,
1290};
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};