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 "gmc_v6_0.h"
31#include "amdgpu_ucode.h"
32#include "amdgpu_gem.h"
33
34#include "bif/bif_3_0_d.h"
35#include "bif/bif_3_0_sh_mask.h"
36#include "oss/oss_1_0_d.h"
37#include "oss/oss_1_0_sh_mask.h"
38#include "gmc/gmc_6_0_d.h"
39#include "gmc/gmc_6_0_sh_mask.h"
40#include "dce/dce_6_0_d.h"
41#include "dce/dce_6_0_sh_mask.h"
42#include "si_enums.h"
43
44static void gmc_v6_0_set_gmc_funcs(struct amdgpu_device *adev);
45static void gmc_v6_0_set_irq_funcs(struct amdgpu_device *adev);
46static int gmc_v6_0_wait_for_idle(void *handle);
47
48MODULE_FIRMWARE("amdgpu/tahiti_mc.bin");
49MODULE_FIRMWARE("amdgpu/pitcairn_mc.bin");
50MODULE_FIRMWARE("amdgpu/verde_mc.bin");
51MODULE_FIRMWARE("amdgpu/oland_mc.bin");
52MODULE_FIRMWARE("amdgpu/hainan_mc.bin");
53MODULE_FIRMWARE("amdgpu/si58_mc.bin");
54
55#define MC_SEQ_MISC0__MT__MASK 0xf0000000
56#define MC_SEQ_MISC0__MT__GDDR1 0x10000000
57#define MC_SEQ_MISC0__MT__DDR2 0x20000000
58#define MC_SEQ_MISC0__MT__GDDR3 0x30000000
59#define MC_SEQ_MISC0__MT__GDDR4 0x40000000
60#define MC_SEQ_MISC0__MT__GDDR5 0x50000000
61#define MC_SEQ_MISC0__MT__HBM 0x60000000
62#define MC_SEQ_MISC0__MT__DDR3 0xB0000000
63
64static void gmc_v6_0_mc_stop(struct amdgpu_device *adev)
65{
66 u32 blackout;
67
68 gmc_v6_0_wait_for_idle(handle: (void *)adev);
69
70 blackout = RREG32(mmMC_SHARED_BLACKOUT_CNTL);
71 if (REG_GET_FIELD(blackout, MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE) != 1) {
72 /* Block CPU access */
73 WREG32(mmBIF_FB_EN, 0);
74 /* blackout the MC */
75 blackout = REG_SET_FIELD(blackout,
76 MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE, 0);
77 WREG32(mmMC_SHARED_BLACKOUT_CNTL, blackout | 1);
78 }
79 /* wait for the MC to settle */
80 udelay(100);
81
82}
83
84static void gmc_v6_0_mc_resume(struct amdgpu_device *adev)
85{
86 u32 tmp;
87
88 /* unblackout the MC */
89 tmp = RREG32(mmMC_SHARED_BLACKOUT_CNTL);
90 tmp = REG_SET_FIELD(tmp, MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE, 0);
91 WREG32(mmMC_SHARED_BLACKOUT_CNTL, tmp);
92 /* allow CPU access */
93 tmp = REG_SET_FIELD(0, BIF_FB_EN, FB_READ_EN, 1);
94 tmp = REG_SET_FIELD(tmp, BIF_FB_EN, FB_WRITE_EN, 1);
95 WREG32(mmBIF_FB_EN, tmp);
96}
97
98static int gmc_v6_0_init_microcode(struct amdgpu_device *adev)
99{
100 const char *chip_name;
101 char fw_name[30];
102 int err;
103 bool is_58_fw = false;
104
105 DRM_DEBUG("\n");
106
107 switch (adev->asic_type) {
108 case CHIP_TAHITI:
109 chip_name = "tahiti";
110 break;
111 case CHIP_PITCAIRN:
112 chip_name = "pitcairn";
113 break;
114 case CHIP_VERDE:
115 chip_name = "verde";
116 break;
117 case CHIP_OLAND:
118 chip_name = "oland";
119 break;
120 case CHIP_HAINAN:
121 chip_name = "hainan";
122 break;
123 default:
124 BUG();
125 }
126
127 /* this memory configuration requires special firmware */
128 if (((RREG32(mmMC_SEQ_MISC0) & 0xff000000) >> 24) == 0x58)
129 is_58_fw = true;
130
131 if (is_58_fw)
132 snprintf(buf: fw_name, size: sizeof(fw_name), fmt: "amdgpu/si58_mc.bin");
133 else
134 snprintf(buf: fw_name, size: sizeof(fw_name), fmt: "amdgpu/%s_mc.bin", chip_name);
135 err = amdgpu_ucode_request(adev, fw: &adev->gmc.fw, fw_name);
136 if (err) {
137 dev_err(adev->dev,
138 "si_mc: Failed to load firmware \"%s\"\n",
139 fw_name);
140 amdgpu_ucode_release(fw: &adev->gmc.fw);
141 }
142 return err;
143}
144
145static int gmc_v6_0_mc_load_microcode(struct amdgpu_device *adev)
146{
147 const __le32 *new_fw_data = NULL;
148 u32 running;
149 const __le32 *new_io_mc_regs = NULL;
150 int i, regs_size, ucode_size;
151 const struct mc_firmware_header_v1_0 *hdr;
152
153 if (!adev->gmc.fw)
154 return -EINVAL;
155
156 hdr = (const struct mc_firmware_header_v1_0 *)adev->gmc.fw->data;
157
158 amdgpu_ucode_print_mc_hdr(hdr: &hdr->header);
159
160 adev->gmc.fw_version = le32_to_cpu(hdr->header.ucode_version);
161 regs_size = le32_to_cpu(hdr->io_debug_size_bytes) / (4 * 2);
162 new_io_mc_regs = (const __le32 *)
163 (adev->gmc.fw->data + le32_to_cpu(hdr->io_debug_array_offset_bytes));
164 ucode_size = le32_to_cpu(hdr->header.ucode_size_bytes) / 4;
165 new_fw_data = (const __le32 *)
166 (adev->gmc.fw->data + le32_to_cpu(hdr->header.ucode_array_offset_bytes));
167
168 running = RREG32(mmMC_SEQ_SUP_CNTL) & MC_SEQ_SUP_CNTL__RUN_MASK;
169
170 if (running == 0) {
171
172 /* reset the engine and set to writable */
173 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000008);
174 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000010);
175
176 /* load mc io regs */
177 for (i = 0; i < regs_size; i++) {
178 WREG32(mmMC_SEQ_IO_DEBUG_INDEX, le32_to_cpup(new_io_mc_regs++));
179 WREG32(mmMC_SEQ_IO_DEBUG_DATA, le32_to_cpup(new_io_mc_regs++));
180 }
181 /* load the MC ucode */
182 for (i = 0; i < ucode_size; i++)
183 WREG32(mmMC_SEQ_SUP_PGM, le32_to_cpup(new_fw_data++));
184
185 /* put the engine back into the active state */
186 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000008);
187 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000004);
188 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000001);
189
190 /* wait for training to complete */
191 for (i = 0; i < adev->usec_timeout; i++) {
192 if (RREG32(mmMC_SEQ_TRAIN_WAKEUP_CNTL) & MC_SEQ_TRAIN_WAKEUP_CNTL__TRAIN_DONE_D0_MASK)
193 break;
194 udelay(1);
195 }
196 for (i = 0; i < adev->usec_timeout; i++) {
197 if (RREG32(mmMC_SEQ_TRAIN_WAKEUP_CNTL) & MC_SEQ_TRAIN_WAKEUP_CNTL__TRAIN_DONE_D1_MASK)
198 break;
199 udelay(1);
200 }
201
202 }
203
204 return 0;
205}
206
207static void gmc_v6_0_vram_gtt_location(struct amdgpu_device *adev,
208 struct amdgpu_gmc *mc)
209{
210 u64 base = RREG32(mmMC_VM_FB_LOCATION) & 0xFFFF;
211
212 base <<= 24;
213
214 amdgpu_gmc_vram_location(adev, mc, base);
215 amdgpu_gmc_gart_location(adev, mc, gart_placement: AMDGPU_GART_PLACEMENT_BEST_FIT);
216}
217
218static void gmc_v6_0_mc_program(struct amdgpu_device *adev)
219{
220 int i, j;
221
222 /* Initialize HDP */
223 for (i = 0, j = 0; i < 32; i++, j += 0x6) {
224 WREG32((0xb05 + j), 0x00000000);
225 WREG32((0xb06 + j), 0x00000000);
226 WREG32((0xb07 + j), 0x00000000);
227 WREG32((0xb08 + j), 0x00000000);
228 WREG32((0xb09 + j), 0x00000000);
229 }
230 WREG32(mmHDP_REG_COHERENCY_FLUSH_CNTL, 0);
231
232 if (gmc_v6_0_wait_for_idle(handle: (void *)adev))
233 dev_warn(adev->dev, "Wait for MC idle timedout !\n");
234
235 if (adev->mode_info.num_crtc) {
236 u32 tmp;
237
238 /* Lockout access through VGA aperture*/
239 tmp = RREG32(mmVGA_HDP_CONTROL);
240 tmp |= VGA_HDP_CONTROL__VGA_MEMORY_DISABLE_MASK;
241 WREG32(mmVGA_HDP_CONTROL, tmp);
242
243 /* disable VGA render */
244 tmp = RREG32(mmVGA_RENDER_CONTROL);
245 tmp &= ~VGA_VSTATUS_CNTL;
246 WREG32(mmVGA_RENDER_CONTROL, tmp);
247 }
248 /* Update configuration */
249 WREG32(mmMC_VM_SYSTEM_APERTURE_LOW_ADDR,
250 adev->gmc.vram_start >> 12);
251 WREG32(mmMC_VM_SYSTEM_APERTURE_HIGH_ADDR,
252 adev->gmc.vram_end >> 12);
253 WREG32(mmMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR,
254 adev->mem_scratch.gpu_addr >> 12);
255 WREG32(mmMC_VM_AGP_BASE, 0);
256 WREG32(mmMC_VM_AGP_TOP, adev->gmc.agp_end >> 22);
257 WREG32(mmMC_VM_AGP_BOT, adev->gmc.agp_start >> 22);
258
259 if (gmc_v6_0_wait_for_idle(handle: (void *)adev))
260 dev_warn(adev->dev, "Wait for MC idle timedout !\n");
261}
262
263static int gmc_v6_0_mc_init(struct amdgpu_device *adev)
264{
265
266 u32 tmp;
267 int chansize, numchan;
268 int r;
269
270 tmp = RREG32(mmMC_ARB_RAMCFG);
271 if (tmp & (1 << 11))
272 chansize = 16;
273 else if (tmp & MC_ARB_RAMCFG__CHANSIZE_MASK)
274 chansize = 64;
275 else
276 chansize = 32;
277
278 tmp = RREG32(mmMC_SHARED_CHMAP);
279 switch ((tmp & MC_SHARED_CHMAP__NOOFCHAN_MASK) >> MC_SHARED_CHMAP__NOOFCHAN__SHIFT) {
280 case 0:
281 default:
282 numchan = 1;
283 break;
284 case 1:
285 numchan = 2;
286 break;
287 case 2:
288 numchan = 4;
289 break;
290 case 3:
291 numchan = 8;
292 break;
293 case 4:
294 numchan = 3;
295 break;
296 case 5:
297 numchan = 6;
298 break;
299 case 6:
300 numchan = 10;
301 break;
302 case 7:
303 numchan = 12;
304 break;
305 case 8:
306 numchan = 16;
307 break;
308 }
309 adev->gmc.vram_width = numchan * chansize;
310 /* size in MB on si */
311 adev->gmc.mc_vram_size = RREG32(mmCONFIG_MEMSIZE) * 1024ULL * 1024ULL;
312 adev->gmc.real_vram_size = RREG32(mmCONFIG_MEMSIZE) * 1024ULL * 1024ULL;
313
314 if (!(adev->flags & AMD_IS_APU)) {
315 r = amdgpu_device_resize_fb_bar(adev);
316 if (r)
317 return r;
318 }
319 adev->gmc.aper_base = pci_resource_start(adev->pdev, 0);
320 adev->gmc.aper_size = pci_resource_len(adev->pdev, 0);
321 adev->gmc.visible_vram_size = adev->gmc.aper_size;
322
323 /* set the gart size */
324 if (amdgpu_gart_size == -1) {
325 switch (adev->asic_type) {
326 case CHIP_HAINAN: /* no MM engines */
327 default:
328 adev->gmc.gart_size = 256ULL << 20;
329 break;
330 case CHIP_VERDE: /* UVD, VCE do not support GPUVM */
331 case CHIP_TAHITI: /* UVD, VCE do not support GPUVM */
332 case CHIP_PITCAIRN: /* UVD, VCE do not support GPUVM */
333 case CHIP_OLAND: /* UVD, VCE do not support GPUVM */
334 adev->gmc.gart_size = 1024ULL << 20;
335 break;
336 }
337 } else {
338 adev->gmc.gart_size = (u64)amdgpu_gart_size << 20;
339 }
340
341 adev->gmc.gart_size += adev->pm.smu_prv_buffer_size;
342 gmc_v6_0_vram_gtt_location(adev, mc: &adev->gmc);
343
344 return 0;
345}
346
347static void gmc_v6_0_flush_gpu_tlb(struct amdgpu_device *adev, uint32_t vmid,
348 uint32_t vmhub, uint32_t flush_type)
349{
350 WREG32(mmVM_INVALIDATE_REQUEST, 1 << vmid);
351}
352
353static uint64_t gmc_v6_0_emit_flush_gpu_tlb(struct amdgpu_ring *ring,
354 unsigned int vmid, uint64_t pd_addr)
355{
356 uint32_t reg;
357
358 /* write new base address */
359 if (vmid < 8)
360 reg = mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + vmid;
361 else
362 reg = mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + (vmid - 8);
363 amdgpu_ring_emit_wreg(ring, reg, pd_addr >> 12);
364
365 /* bits 0-15 are the VM contexts0-15 */
366 amdgpu_ring_emit_wreg(ring, mmVM_INVALIDATE_REQUEST, 1 << vmid);
367
368 return pd_addr;
369}
370
371static void gmc_v6_0_get_vm_pde(struct amdgpu_device *adev, int level,
372 uint64_t *addr, uint64_t *flags)
373{
374 BUG_ON(*addr & 0xFFFFFF0000000FFFULL);
375}
376
377static void gmc_v6_0_get_vm_pte(struct amdgpu_device *adev,
378 struct amdgpu_bo_va_mapping *mapping,
379 uint64_t *flags)
380{
381 *flags &= ~AMDGPU_PTE_EXECUTABLE;
382 *flags &= ~AMDGPU_PTE_PRT;
383}
384
385static void gmc_v6_0_set_fault_enable_default(struct amdgpu_device *adev,
386 bool value)
387{
388 u32 tmp;
389
390 tmp = RREG32(mmVM_CONTEXT1_CNTL);
391 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
392 RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
393 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
394 DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
395 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
396 PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, value);
397 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
398 VALID_PROTECTION_FAULT_ENABLE_DEFAULT, value);
399 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
400 READ_PROTECTION_FAULT_ENABLE_DEFAULT, value);
401 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
402 WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
403 WREG32(mmVM_CONTEXT1_CNTL, tmp);
404}
405
406 /**
407 * gmc_v8_0_set_prt() - set PRT VM fault
408 *
409 * @adev: amdgpu_device pointer
410 * @enable: enable/disable VM fault handling for PRT
411 */
412static void gmc_v6_0_set_prt(struct amdgpu_device *adev, bool enable)
413{
414 u32 tmp;
415
416 if (enable && !adev->gmc.prt_warning) {
417 dev_warn(adev->dev, "Disabling VM faults because of PRT request!\n");
418 adev->gmc.prt_warning = true;
419 }
420
421 tmp = RREG32(mmVM_PRT_CNTL);
422 tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
423 CB_DISABLE_FAULT_ON_UNMAPPED_ACCESS,
424 enable);
425 tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
426 TC_DISABLE_FAULT_ON_UNMAPPED_ACCESS,
427 enable);
428 tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
429 L2_CACHE_STORE_INVALID_ENTRIES,
430 enable);
431 tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
432 L1_TLB_STORE_INVALID_ENTRIES,
433 enable);
434 WREG32(mmVM_PRT_CNTL, tmp);
435
436 if (enable) {
437 uint32_t low = AMDGPU_VA_RESERVED_SIZE >> AMDGPU_GPU_PAGE_SHIFT;
438 uint32_t high = adev->vm_manager.max_pfn -
439 (AMDGPU_VA_RESERVED_SIZE >> AMDGPU_GPU_PAGE_SHIFT);
440
441 WREG32(mmVM_PRT_APERTURE0_LOW_ADDR, low);
442 WREG32(mmVM_PRT_APERTURE1_LOW_ADDR, low);
443 WREG32(mmVM_PRT_APERTURE2_LOW_ADDR, low);
444 WREG32(mmVM_PRT_APERTURE3_LOW_ADDR, low);
445 WREG32(mmVM_PRT_APERTURE0_HIGH_ADDR, high);
446 WREG32(mmVM_PRT_APERTURE1_HIGH_ADDR, high);
447 WREG32(mmVM_PRT_APERTURE2_HIGH_ADDR, high);
448 WREG32(mmVM_PRT_APERTURE3_HIGH_ADDR, high);
449 } else {
450 WREG32(mmVM_PRT_APERTURE0_LOW_ADDR, 0xfffffff);
451 WREG32(mmVM_PRT_APERTURE1_LOW_ADDR, 0xfffffff);
452 WREG32(mmVM_PRT_APERTURE2_LOW_ADDR, 0xfffffff);
453 WREG32(mmVM_PRT_APERTURE3_LOW_ADDR, 0xfffffff);
454 WREG32(mmVM_PRT_APERTURE0_HIGH_ADDR, 0x0);
455 WREG32(mmVM_PRT_APERTURE1_HIGH_ADDR, 0x0);
456 WREG32(mmVM_PRT_APERTURE2_HIGH_ADDR, 0x0);
457 WREG32(mmVM_PRT_APERTURE3_HIGH_ADDR, 0x0);
458 }
459}
460
461static int gmc_v6_0_gart_enable(struct amdgpu_device *adev)
462{
463 uint64_t table_addr;
464 u32 field;
465 int i;
466
467 if (adev->gart.bo == NULL) {
468 dev_err(adev->dev, "No VRAM object for PCIE GART.\n");
469 return -EINVAL;
470 }
471 amdgpu_gtt_mgr_recover(mgr: &adev->mman.gtt_mgr);
472
473 table_addr = amdgpu_bo_gpu_offset(bo: adev->gart.bo);
474
475 /* Setup TLB control */
476 WREG32(mmMC_VM_MX_L1_TLB_CNTL,
477 (0xA << 7) |
478 MC_VM_MX_L1_TLB_CNTL__ENABLE_L1_TLB_MASK |
479 MC_VM_MX_L1_TLB_CNTL__ENABLE_L1_FRAGMENT_PROCESSING_MASK |
480 MC_VM_MX_L1_TLB_CNTL__SYSTEM_ACCESS_MODE_MASK |
481 MC_VM_MX_L1_TLB_CNTL__ENABLE_ADVANCED_DRIVER_MODEL_MASK |
482 (0UL << MC_VM_MX_L1_TLB_CNTL__SYSTEM_APERTURE_UNMAPPED_ACCESS__SHIFT));
483 /* Setup L2 cache */
484 WREG32(mmVM_L2_CNTL,
485 VM_L2_CNTL__ENABLE_L2_CACHE_MASK |
486 VM_L2_CNTL__ENABLE_L2_FRAGMENT_PROCESSING_MASK |
487 VM_L2_CNTL__ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE_MASK |
488 VM_L2_CNTL__ENABLE_L2_PDE0_CACHE_LRU_UPDATE_BY_WRITE_MASK |
489 (7UL << VM_L2_CNTL__EFFECTIVE_L2_QUEUE_SIZE__SHIFT) |
490 (1UL << VM_L2_CNTL__CONTEXT1_IDENTITY_ACCESS_MODE__SHIFT));
491 WREG32(mmVM_L2_CNTL2,
492 VM_L2_CNTL2__INVALIDATE_ALL_L1_TLBS_MASK |
493 VM_L2_CNTL2__INVALIDATE_L2_CACHE_MASK);
494
495 field = adev->vm_manager.fragment_size;
496 WREG32(mmVM_L2_CNTL3,
497 VM_L2_CNTL3__L2_CACHE_BIGK_ASSOCIATIVITY_MASK |
498 (field << VM_L2_CNTL3__BANK_SELECT__SHIFT) |
499 (field << VM_L2_CNTL3__L2_CACHE_BIGK_FRAGMENT_SIZE__SHIFT));
500 /* setup context0 */
501 WREG32(mmVM_CONTEXT0_PAGE_TABLE_START_ADDR, adev->gmc.gart_start >> 12);
502 WREG32(mmVM_CONTEXT0_PAGE_TABLE_END_ADDR, adev->gmc.gart_end >> 12);
503 WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR, table_addr >> 12);
504 WREG32(mmVM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR,
505 (u32)(adev->dummy_page_addr >> 12));
506 WREG32(mmVM_CONTEXT0_CNTL2, 0);
507 WREG32(mmVM_CONTEXT0_CNTL,
508 VM_CONTEXT0_CNTL__ENABLE_CONTEXT_MASK |
509 (0UL << VM_CONTEXT0_CNTL__PAGE_TABLE_DEPTH__SHIFT) |
510 VM_CONTEXT0_CNTL__RANGE_PROTECTION_FAULT_ENABLE_DEFAULT_MASK);
511
512 WREG32(0x575, 0);
513 WREG32(0x576, 0);
514 WREG32(0x577, 0);
515
516 /* empty context1-15 */
517 /* set vm size, must be a multiple of 4 */
518 WREG32(mmVM_CONTEXT1_PAGE_TABLE_START_ADDR, 0);
519 WREG32(mmVM_CONTEXT1_PAGE_TABLE_END_ADDR, adev->vm_manager.max_pfn - 1);
520 /* Assign the pt base to something valid for now; the pts used for
521 * the VMs are determined by the application and setup and assigned
522 * on the fly in the vm part of radeon_gart.c
523 */
524 for (i = 1; i < AMDGPU_NUM_VMID; i++) {
525 if (i < 8)
526 WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + i,
527 table_addr >> 12);
528 else
529 WREG32(mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + i - 8,
530 table_addr >> 12);
531 }
532
533 /* enable context1-15 */
534 WREG32(mmVM_CONTEXT1_PROTECTION_FAULT_DEFAULT_ADDR,
535 (u32)(adev->dummy_page_addr >> 12));
536 WREG32(mmVM_CONTEXT1_CNTL2, 4);
537 WREG32(mmVM_CONTEXT1_CNTL,
538 VM_CONTEXT1_CNTL__ENABLE_CONTEXT_MASK |
539 (1UL << VM_CONTEXT1_CNTL__PAGE_TABLE_DEPTH__SHIFT) |
540 ((adev->vm_manager.block_size - 9)
541 << VM_CONTEXT1_CNTL__PAGE_TABLE_BLOCK_SIZE__SHIFT));
542 if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_ALWAYS)
543 gmc_v6_0_set_fault_enable_default(adev, value: false);
544 else
545 gmc_v6_0_set_fault_enable_default(adev, value: true);
546
547 gmc_v6_0_flush_gpu_tlb(adev, vmid: 0, vmhub: 0, flush_type: 0);
548 dev_info(adev->dev, "PCIE GART of %uM enabled (table at 0x%016llX).\n",
549 (unsigned int)(adev->gmc.gart_size >> 20),
550 (unsigned long long)table_addr);
551 return 0;
552}
553
554static int gmc_v6_0_gart_init(struct amdgpu_device *adev)
555{
556 int r;
557
558 if (adev->gart.bo) {
559 dev_warn(adev->dev, "gmc_v6_0 PCIE GART already initialized\n");
560 return 0;
561 }
562 r = amdgpu_gart_init(adev);
563 if (r)
564 return r;
565 adev->gart.table_size = adev->gart.num_gpu_pages * 8;
566 adev->gart.gart_pte_flags = 0;
567 return amdgpu_gart_table_vram_alloc(adev);
568}
569
570static void gmc_v6_0_gart_disable(struct amdgpu_device *adev)
571{
572 /*unsigned i;
573
574 for (i = 1; i < 16; ++i) {
575 uint32_t reg;
576 if (i < 8)
577 reg = VM_CONTEXT0_PAGE_TABLE_BASE_ADDR + i ;
578 else
579 reg = VM_CONTEXT8_PAGE_TABLE_BASE_ADDR + (i - 8);
580 adev->vm_manager.saved_table_addr[i] = RREG32(reg);
581 }*/
582
583 /* Disable all tables */
584 WREG32(mmVM_CONTEXT0_CNTL, 0);
585 WREG32(mmVM_CONTEXT1_CNTL, 0);
586 /* Setup TLB control */
587 WREG32(mmMC_VM_MX_L1_TLB_CNTL,
588 MC_VM_MX_L1_TLB_CNTL__SYSTEM_ACCESS_MODE_MASK |
589 (0UL << MC_VM_MX_L1_TLB_CNTL__SYSTEM_APERTURE_UNMAPPED_ACCESS__SHIFT));
590 /* Setup L2 cache */
591 WREG32(mmVM_L2_CNTL,
592 VM_L2_CNTL__ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE_MASK |
593 VM_L2_CNTL__ENABLE_L2_PDE0_CACHE_LRU_UPDATE_BY_WRITE_MASK |
594 (7UL << VM_L2_CNTL__EFFECTIVE_L2_QUEUE_SIZE__SHIFT) |
595 (1UL << VM_L2_CNTL__CONTEXT1_IDENTITY_ACCESS_MODE__SHIFT));
596 WREG32(mmVM_L2_CNTL2, 0);
597 WREG32(mmVM_L2_CNTL3,
598 VM_L2_CNTL3__L2_CACHE_BIGK_ASSOCIATIVITY_MASK |
599 (0UL << VM_L2_CNTL3__L2_CACHE_BIGK_FRAGMENT_SIZE__SHIFT));
600}
601
602static void gmc_v6_0_vm_decode_fault(struct amdgpu_device *adev,
603 u32 status, u32 addr, u32 mc_client)
604{
605 u32 mc_id;
606 u32 vmid = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS, VMID);
607 u32 protections = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
608 PROTECTIONS);
609 char block[5] = { mc_client >> 24, (mc_client >> 16) & 0xff,
610 (mc_client >> 8) & 0xff, mc_client & 0xff, 0 };
611
612 mc_id = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
613 MEMORY_CLIENT_ID);
614
615 dev_err(adev->dev, "VM fault (0x%02x, vmid %d) at page %u, %s from '%s' (0x%08x) (%d)\n",
616 protections, vmid, addr,
617 REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
618 MEMORY_CLIENT_RW) ?
619 "write" : "read", block, mc_client, mc_id);
620}
621
622/*
623static const u32 mc_cg_registers[] = {
624 MC_HUB_MISC_HUB_CG,
625 MC_HUB_MISC_SIP_CG,
626 MC_HUB_MISC_VM_CG,
627 MC_XPB_CLK_GAT,
628 ATC_MISC_CG,
629 MC_CITF_MISC_WR_CG,
630 MC_CITF_MISC_RD_CG,
631 MC_CITF_MISC_VM_CG,
632 VM_L2_CG,
633};
634
635static const u32 mc_cg_ls_en[] = {
636 MC_HUB_MISC_HUB_CG__MEM_LS_ENABLE_MASK,
637 MC_HUB_MISC_SIP_CG__MEM_LS_ENABLE_MASK,
638 MC_HUB_MISC_VM_CG__MEM_LS_ENABLE_MASK,
639 MC_XPB_CLK_GAT__MEM_LS_ENABLE_MASK,
640 ATC_MISC_CG__MEM_LS_ENABLE_MASK,
641 MC_CITF_MISC_WR_CG__MEM_LS_ENABLE_MASK,
642 MC_CITF_MISC_RD_CG__MEM_LS_ENABLE_MASK,
643 MC_CITF_MISC_VM_CG__MEM_LS_ENABLE_MASK,
644 VM_L2_CG__MEM_LS_ENABLE_MASK,
645};
646
647static const u32 mc_cg_en[] = {
648 MC_HUB_MISC_HUB_CG__ENABLE_MASK,
649 MC_HUB_MISC_SIP_CG__ENABLE_MASK,
650 MC_HUB_MISC_VM_CG__ENABLE_MASK,
651 MC_XPB_CLK_GAT__ENABLE_MASK,
652 ATC_MISC_CG__ENABLE_MASK,
653 MC_CITF_MISC_WR_CG__ENABLE_MASK,
654 MC_CITF_MISC_RD_CG__ENABLE_MASK,
655 MC_CITF_MISC_VM_CG__ENABLE_MASK,
656 VM_L2_CG__ENABLE_MASK,
657};
658
659static void gmc_v6_0_enable_mc_ls(struct amdgpu_device *adev,
660 bool enable)
661{
662 int i;
663 u32 orig, data;
664
665 for (i = 0; i < ARRAY_SIZE(mc_cg_registers); i++) {
666 orig = data = RREG32(mc_cg_registers[i]);
667 if (enable && (adev->cg_flags & AMDGPU_CG_SUPPORT_MC_LS))
668 data |= mc_cg_ls_en[i];
669 else
670 data &= ~mc_cg_ls_en[i];
671 if (data != orig)
672 WREG32(mc_cg_registers[i], data);
673 }
674}
675
676static void gmc_v6_0_enable_mc_mgcg(struct amdgpu_device *adev,
677 bool enable)
678{
679 int i;
680 u32 orig, data;
681
682 for (i = 0; i < ARRAY_SIZE(mc_cg_registers); i++) {
683 orig = data = RREG32(mc_cg_registers[i]);
684 if (enable && (adev->cg_flags & AMDGPU_CG_SUPPORT_MC_MGCG))
685 data |= mc_cg_en[i];
686 else
687 data &= ~mc_cg_en[i];
688 if (data != orig)
689 WREG32(mc_cg_registers[i], data);
690 }
691}
692
693static void gmc_v6_0_enable_bif_mgls(struct amdgpu_device *adev,
694 bool enable)
695{
696 u32 orig, data;
697
698 orig = data = RREG32_PCIE(ixPCIE_CNTL2);
699
700 if (enable && (adev->cg_flags & AMDGPU_CG_SUPPORT_BIF_LS)) {
701 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_LS_EN, 1);
702 data = REG_SET_FIELD(data, PCIE_CNTL2, MST_MEM_LS_EN, 1);
703 data = REG_SET_FIELD(data, PCIE_CNTL2, REPLAY_MEM_LS_EN, 1);
704 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_AGGRESSIVE_LS_EN, 1);
705 } else {
706 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_LS_EN, 0);
707 data = REG_SET_FIELD(data, PCIE_CNTL2, MST_MEM_LS_EN, 0);
708 data = REG_SET_FIELD(data, PCIE_CNTL2, REPLAY_MEM_LS_EN, 0);
709 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_AGGRESSIVE_LS_EN, 0);
710 }
711
712 if (orig != data)
713 WREG32_PCIE(ixPCIE_CNTL2, data);
714}
715
716static void gmc_v6_0_enable_hdp_mgcg(struct amdgpu_device *adev,
717 bool enable)
718{
719 u32 orig, data;
720
721 orig = data = RREG32(mmHDP_HOST_PATH_CNTL);
722
723 if (enable && (adev->cg_flags & AMDGPU_CG_SUPPORT_HDP_MGCG))
724 data = REG_SET_FIELD(data, HDP_HOST_PATH_CNTL, CLOCK_GATING_DIS, 0);
725 else
726 data = REG_SET_FIELD(data, HDP_HOST_PATH_CNTL, CLOCK_GATING_DIS, 1);
727
728 if (orig != data)
729 WREG32(mmHDP_HOST_PATH_CNTL, data);
730}
731
732static void gmc_v6_0_enable_hdp_ls(struct amdgpu_device *adev,
733 bool enable)
734{
735 u32 orig, data;
736
737 orig = data = RREG32(mmHDP_MEM_POWER_LS);
738
739 if (enable && (adev->cg_flags & AMDGPU_CG_SUPPORT_HDP_LS))
740 data = REG_SET_FIELD(data, HDP_MEM_POWER_LS, LS_ENABLE, 1);
741 else
742 data = REG_SET_FIELD(data, HDP_MEM_POWER_LS, LS_ENABLE, 0);
743
744 if (orig != data)
745 WREG32(mmHDP_MEM_POWER_LS, data);
746}
747*/
748
749static int gmc_v6_0_convert_vram_type(int mc_seq_vram_type)
750{
751 switch (mc_seq_vram_type) {
752 case MC_SEQ_MISC0__MT__GDDR1:
753 return AMDGPU_VRAM_TYPE_GDDR1;
754 case MC_SEQ_MISC0__MT__DDR2:
755 return AMDGPU_VRAM_TYPE_DDR2;
756 case MC_SEQ_MISC0__MT__GDDR3:
757 return AMDGPU_VRAM_TYPE_GDDR3;
758 case MC_SEQ_MISC0__MT__GDDR4:
759 return AMDGPU_VRAM_TYPE_GDDR4;
760 case MC_SEQ_MISC0__MT__GDDR5:
761 return AMDGPU_VRAM_TYPE_GDDR5;
762 case MC_SEQ_MISC0__MT__DDR3:
763 return AMDGPU_VRAM_TYPE_DDR3;
764 default:
765 return AMDGPU_VRAM_TYPE_UNKNOWN;
766 }
767}
768
769static int gmc_v6_0_early_init(void *handle)
770{
771 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
772
773 gmc_v6_0_set_gmc_funcs(adev);
774 gmc_v6_0_set_irq_funcs(adev);
775
776 return 0;
777}
778
779static int gmc_v6_0_late_init(void *handle)
780{
781 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
782
783 if (amdgpu_vm_fault_stop != AMDGPU_VM_FAULT_STOP_ALWAYS)
784 return amdgpu_irq_get(adev, src: &adev->gmc.vm_fault, type: 0);
785 else
786 return 0;
787}
788
789static unsigned int gmc_v6_0_get_vbios_fb_size(struct amdgpu_device *adev)
790{
791 u32 d1vga_control = RREG32(mmD1VGA_CONTROL);
792 unsigned int size;
793
794 if (REG_GET_FIELD(d1vga_control, D1VGA_CONTROL, D1VGA_MODE_ENABLE)) {
795 size = AMDGPU_VBIOS_VGA_ALLOCATION;
796 } else {
797 u32 viewport = RREG32(mmVIEWPORT_SIZE);
798
799 size = (REG_GET_FIELD(viewport, VIEWPORT_SIZE, VIEWPORT_HEIGHT) *
800 REG_GET_FIELD(viewport, VIEWPORT_SIZE, VIEWPORT_WIDTH) *
801 4);
802 }
803 return size;
804}
805
806static int gmc_v6_0_sw_init(void *handle)
807{
808 int r;
809 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
810
811 set_bit(AMDGPU_GFXHUB(0), addr: adev->vmhubs_mask);
812
813 if (adev->flags & AMD_IS_APU) {
814 adev->gmc.vram_type = AMDGPU_VRAM_TYPE_UNKNOWN;
815 } else {
816 u32 tmp = RREG32(mmMC_SEQ_MISC0);
817
818 tmp &= MC_SEQ_MISC0__MT__MASK;
819 adev->gmc.vram_type = gmc_v6_0_convert_vram_type(mc_seq_vram_type: tmp);
820 }
821
822 r = amdgpu_irq_add_id(adev, AMDGPU_IRQ_CLIENTID_LEGACY, src_id: 146, source: &adev->gmc.vm_fault);
823 if (r)
824 return r;
825
826 r = amdgpu_irq_add_id(adev, AMDGPU_IRQ_CLIENTID_LEGACY, src_id: 147, source: &adev->gmc.vm_fault);
827 if (r)
828 return r;
829
830 amdgpu_vm_adjust_size(adev, min_vm_size: 64, fragment_size_default: 9, max_level: 1, max_bits: 40);
831
832 adev->gmc.mc_mask = 0xffffffffffULL;
833
834 r = dma_set_mask_and_coherent(dev: adev->dev, DMA_BIT_MASK(40));
835 if (r) {
836 dev_warn(adev->dev, "No suitable DMA available.\n");
837 return r;
838 }
839 adev->need_swiotlb = drm_need_swiotlb(dma_bits: 40);
840
841 r = gmc_v6_0_init_microcode(adev);
842 if (r) {
843 dev_err(adev->dev, "Failed to load mc firmware!\n");
844 return r;
845 }
846
847 r = gmc_v6_0_mc_init(adev);
848 if (r)
849 return r;
850
851 amdgpu_gmc_get_vbios_allocations(adev);
852
853 r = amdgpu_bo_init(adev);
854 if (r)
855 return r;
856
857 r = gmc_v6_0_gart_init(adev);
858 if (r)
859 return r;
860
861 /*
862 * number of VMs
863 * VMID 0 is reserved for System
864 * amdgpu graphics/compute will use VMIDs 1-7
865 * amdkfd will use VMIDs 8-15
866 */
867 adev->vm_manager.first_kfd_vmid = 8;
868 amdgpu_vm_manager_init(adev);
869
870 /* base offset of vram pages */
871 if (adev->flags & AMD_IS_APU) {
872 u64 tmp = RREG32(mmMC_VM_FB_OFFSET);
873
874 tmp <<= 22;
875 adev->vm_manager.vram_base_offset = tmp;
876 } else {
877 adev->vm_manager.vram_base_offset = 0;
878 }
879
880 return 0;
881}
882
883static int gmc_v6_0_sw_fini(void *handle)
884{
885 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
886
887 amdgpu_gem_force_release(adev);
888 amdgpu_vm_manager_fini(adev);
889 amdgpu_gart_table_vram_free(adev);
890 amdgpu_bo_fini(adev);
891 amdgpu_ucode_release(fw: &adev->gmc.fw);
892
893 return 0;
894}
895
896static int gmc_v6_0_hw_init(void *handle)
897{
898 int r;
899 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
900
901 gmc_v6_0_mc_program(adev);
902
903 if (!(adev->flags & AMD_IS_APU)) {
904 r = gmc_v6_0_mc_load_microcode(adev);
905 if (r) {
906 dev_err(adev->dev, "Failed to load MC firmware!\n");
907 return r;
908 }
909 }
910
911 r = gmc_v6_0_gart_enable(adev);
912 if (r)
913 return r;
914
915 if (amdgpu_emu_mode == 1)
916 return amdgpu_gmc_vram_checking(adev);
917 else
918 return r;
919}
920
921static int gmc_v6_0_hw_fini(void *handle)
922{
923 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
924
925 amdgpu_irq_put(adev, src: &adev->gmc.vm_fault, type: 0);
926 gmc_v6_0_gart_disable(adev);
927
928 return 0;
929}
930
931static int gmc_v6_0_suspend(void *handle)
932{
933 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
934
935 gmc_v6_0_hw_fini(handle: adev);
936
937 return 0;
938}
939
940static int gmc_v6_0_resume(void *handle)
941{
942 int r;
943 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
944
945 r = gmc_v6_0_hw_init(handle: adev);
946 if (r)
947 return r;
948
949 amdgpu_vmid_reset_all(adev);
950
951 return 0;
952}
953
954static bool gmc_v6_0_is_idle(void *handle)
955{
956 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
957 u32 tmp = RREG32(mmSRBM_STATUS);
958
959 if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
960 SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK | SRBM_STATUS__VMC_BUSY_MASK))
961 return false;
962
963 return true;
964}
965
966static int gmc_v6_0_wait_for_idle(void *handle)
967{
968 unsigned int i;
969 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
970
971 for (i = 0; i < adev->usec_timeout; i++) {
972 if (gmc_v6_0_is_idle(handle))
973 return 0;
974 udelay(1);
975 }
976 return -ETIMEDOUT;
977
978}
979
980static int gmc_v6_0_soft_reset(void *handle)
981{
982 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
983 u32 srbm_soft_reset = 0;
984 u32 tmp = RREG32(mmSRBM_STATUS);
985
986 if (tmp & SRBM_STATUS__VMC_BUSY_MASK)
987 srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset,
988 SRBM_SOFT_RESET, SOFT_RESET_VMC, 1);
989
990 if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
991 SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK)) {
992 if (!(adev->flags & AMD_IS_APU))
993 srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset,
994 SRBM_SOFT_RESET, SOFT_RESET_MC, 1);
995 }
996
997 if (srbm_soft_reset) {
998 gmc_v6_0_mc_stop(adev);
999 if (gmc_v6_0_wait_for_idle(handle: adev))
1000 dev_warn(adev->dev, "Wait for GMC idle timed out !\n");
1001
1002 tmp = RREG32(mmSRBM_SOFT_RESET);
1003 tmp |= srbm_soft_reset;
1004 dev_info(adev->dev, "SRBM_SOFT_RESET=0x%08X\n", tmp);
1005 WREG32(mmSRBM_SOFT_RESET, tmp);
1006 tmp = RREG32(mmSRBM_SOFT_RESET);
1007
1008 udelay(50);
1009
1010 tmp &= ~srbm_soft_reset;
1011 WREG32(mmSRBM_SOFT_RESET, tmp);
1012 tmp = RREG32(mmSRBM_SOFT_RESET);
1013
1014 udelay(50);
1015
1016 gmc_v6_0_mc_resume(adev);
1017 udelay(50);
1018 }
1019
1020 return 0;
1021}
1022
1023static int gmc_v6_0_vm_fault_interrupt_state(struct amdgpu_device *adev,
1024 struct amdgpu_irq_src *src,
1025 unsigned int type,
1026 enum amdgpu_interrupt_state state)
1027{
1028 u32 tmp;
1029 u32 bits = (VM_CONTEXT1_CNTL__RANGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1030 VM_CONTEXT1_CNTL__DUMMY_PAGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1031 VM_CONTEXT1_CNTL__PDE0_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1032 VM_CONTEXT1_CNTL__VALID_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1033 VM_CONTEXT1_CNTL__READ_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1034 VM_CONTEXT1_CNTL__WRITE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK);
1035
1036 switch (state) {
1037 case AMDGPU_IRQ_STATE_DISABLE:
1038 tmp = RREG32(mmVM_CONTEXT0_CNTL);
1039 tmp &= ~bits;
1040 WREG32(mmVM_CONTEXT0_CNTL, tmp);
1041 tmp = RREG32(mmVM_CONTEXT1_CNTL);
1042 tmp &= ~bits;
1043 WREG32(mmVM_CONTEXT1_CNTL, tmp);
1044 break;
1045 case AMDGPU_IRQ_STATE_ENABLE:
1046 tmp = RREG32(mmVM_CONTEXT0_CNTL);
1047 tmp |= bits;
1048 WREG32(mmVM_CONTEXT0_CNTL, tmp);
1049 tmp = RREG32(mmVM_CONTEXT1_CNTL);
1050 tmp |= bits;
1051 WREG32(mmVM_CONTEXT1_CNTL, tmp);
1052 break;
1053 default:
1054 break;
1055 }
1056
1057 return 0;
1058}
1059
1060static int gmc_v6_0_process_interrupt(struct amdgpu_device *adev,
1061 struct amdgpu_irq_src *source,
1062 struct amdgpu_iv_entry *entry)
1063{
1064 u32 addr, status;
1065
1066 addr = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_ADDR);
1067 status = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_STATUS);
1068 WREG32_P(mmVM_CONTEXT1_CNTL2, 1, ~1);
1069
1070 if (!addr && !status)
1071 return 0;
1072
1073 if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_FIRST)
1074 gmc_v6_0_set_fault_enable_default(adev, value: false);
1075
1076 if (printk_ratelimit()) {
1077 dev_err(adev->dev, "GPU fault detected: %d 0x%08x\n",
1078 entry->src_id, entry->src_data[0]);
1079 dev_err(adev->dev, " VM_CONTEXT1_PROTECTION_FAULT_ADDR 0x%08X\n",
1080 addr);
1081 dev_err(adev->dev, " VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n",
1082 status);
1083 gmc_v6_0_vm_decode_fault(adev, status, addr, mc_client: 0);
1084 }
1085
1086 return 0;
1087}
1088
1089static int gmc_v6_0_set_clockgating_state(void *handle,
1090 enum amd_clockgating_state state)
1091{
1092 return 0;
1093}
1094
1095static int gmc_v6_0_set_powergating_state(void *handle,
1096 enum amd_powergating_state state)
1097{
1098 return 0;
1099}
1100
1101static const struct amd_ip_funcs gmc_v6_0_ip_funcs = {
1102 .name = "gmc_v6_0",
1103 .early_init = gmc_v6_0_early_init,
1104 .late_init = gmc_v6_0_late_init,
1105 .sw_init = gmc_v6_0_sw_init,
1106 .sw_fini = gmc_v6_0_sw_fini,
1107 .hw_init = gmc_v6_0_hw_init,
1108 .hw_fini = gmc_v6_0_hw_fini,
1109 .suspend = gmc_v6_0_suspend,
1110 .resume = gmc_v6_0_resume,
1111 .is_idle = gmc_v6_0_is_idle,
1112 .wait_for_idle = gmc_v6_0_wait_for_idle,
1113 .soft_reset = gmc_v6_0_soft_reset,
1114 .set_clockgating_state = gmc_v6_0_set_clockgating_state,
1115 .set_powergating_state = gmc_v6_0_set_powergating_state,
1116};
1117
1118static const struct amdgpu_gmc_funcs gmc_v6_0_gmc_funcs = {
1119 .flush_gpu_tlb = gmc_v6_0_flush_gpu_tlb,
1120 .emit_flush_gpu_tlb = gmc_v6_0_emit_flush_gpu_tlb,
1121 .set_prt = gmc_v6_0_set_prt,
1122 .get_vm_pde = gmc_v6_0_get_vm_pde,
1123 .get_vm_pte = gmc_v6_0_get_vm_pte,
1124 .get_vbios_fb_size = gmc_v6_0_get_vbios_fb_size,
1125};
1126
1127static const struct amdgpu_irq_src_funcs gmc_v6_0_irq_funcs = {
1128 .set = gmc_v6_0_vm_fault_interrupt_state,
1129 .process = gmc_v6_0_process_interrupt,
1130};
1131
1132static void gmc_v6_0_set_gmc_funcs(struct amdgpu_device *adev)
1133{
1134 adev->gmc.gmc_funcs = &gmc_v6_0_gmc_funcs;
1135}
1136
1137static void gmc_v6_0_set_irq_funcs(struct amdgpu_device *adev)
1138{
1139 adev->gmc.vm_fault.num_types = 1;
1140 adev->gmc.vm_fault.funcs = &gmc_v6_0_irq_funcs;
1141}
1142
1143const struct amdgpu_ip_block_version gmc_v6_0_ip_block = {
1144 .type = AMD_IP_BLOCK_TYPE_GMC,
1145 .major = 6,
1146 .minor = 0,
1147 .rev = 0,
1148 .funcs = &gmc_v6_0_ip_funcs,
1149};
1150

source code of linux/drivers/gpu/drm/amd/amdgpu/gmc_v6_0.c