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(struct amdgpu_ip_block *ip_block);
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 struct amdgpu_ip_block *ip_block;
68
69 ip_block = amdgpu_device_ip_get_ip_block(adev, type: AMD_IP_BLOCK_TYPE_GMC);
70 if (!ip_block)
71 return;
72
73 gmc_v6_0_wait_for_idle(ip_block);
74
75 blackout = RREG32(mmMC_SHARED_BLACKOUT_CNTL);
76 if (REG_GET_FIELD(blackout, MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE) != 1) {
77 /* Block CPU access */
78 WREG32(mmBIF_FB_EN, 0);
79 /* blackout the MC */
80 blackout = REG_SET_FIELD(blackout,
81 MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE, 0);
82 WREG32(mmMC_SHARED_BLACKOUT_CNTL, blackout | 1);
83 }
84 /* wait for the MC to settle */
85 udelay(usec: 100);
86
87}
88
89static void gmc_v6_0_mc_resume(struct amdgpu_device *adev)
90{
91 u32 tmp;
92
93 /* unblackout the MC */
94 tmp = RREG32(mmMC_SHARED_BLACKOUT_CNTL);
95 tmp = REG_SET_FIELD(tmp, MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE, 0);
96 WREG32(mmMC_SHARED_BLACKOUT_CNTL, tmp);
97 /* allow CPU access */
98 tmp = REG_SET_FIELD(0, BIF_FB_EN, FB_READ_EN, 1);
99 tmp = REG_SET_FIELD(tmp, BIF_FB_EN, FB_WRITE_EN, 1);
100 WREG32(mmBIF_FB_EN, tmp);
101}
102
103static int gmc_v6_0_init_microcode(struct amdgpu_device *adev)
104{
105 const char *chip_name;
106 int err;
107
108 DRM_DEBUG("\n");
109
110 switch (adev->asic_type) {
111 case CHIP_TAHITI:
112 chip_name = "tahiti";
113 break;
114 case CHIP_PITCAIRN:
115 chip_name = "pitcairn";
116 break;
117 case CHIP_VERDE:
118 chip_name = "verde";
119 break;
120 case CHIP_OLAND:
121 chip_name = "oland";
122 break;
123 case CHIP_HAINAN:
124 chip_name = "hainan";
125 break;
126 default:
127 BUG();
128 }
129
130 /* this memory configuration requires special firmware */
131 if (((RREG32(mmMC_SEQ_MISC0) & 0xff000000) >> 24) == 0x58)
132 chip_name = "si58";
133
134 err = amdgpu_ucode_request(adev, fw: &adev->gmc.fw, required: AMDGPU_UCODE_REQUIRED,
135 fmt: "amdgpu/%s_mc.bin", chip_name);
136 if (err) {
137 dev_err(adev->dev,
138 "si_mc: Failed to load firmware \"%s_mc.bin\"\n",
139 chip_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(usec: 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(usec: 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_set_agp_default(adev, mc);
215 amdgpu_gmc_vram_location(adev, mc, base);
216 amdgpu_gmc_gart_location(adev, mc, gart_placement: AMDGPU_GART_PLACEMENT_LOW);
217}
218
219static void gmc_v6_0_mc_program(struct amdgpu_device *adev)
220{
221 int i, j;
222 struct amdgpu_ip_block *ip_block;
223
224
225 /* Initialize HDP */
226 for (i = 0, j = 0; i < 32; i++, j += 0x6) {
227 WREG32((0xb05 + j), 0x00000000);
228 WREG32((0xb06 + j), 0x00000000);
229 WREG32((0xb07 + j), 0x00000000);
230 WREG32((0xb08 + j), 0x00000000);
231 WREG32((0xb09 + j), 0x00000000);
232 }
233 WREG32(mmHDP_REG_COHERENCY_FLUSH_CNTL, 0);
234
235 ip_block = amdgpu_device_ip_get_ip_block(adev, type: AMD_IP_BLOCK_TYPE_GMC);
236 if (!ip_block)
237 return;
238
239 if (gmc_v6_0_wait_for_idle(ip_block))
240 dev_warn(adev->dev, "Wait for MC idle timedout !\n");
241
242 if (adev->mode_info.num_crtc) {
243 u32 tmp;
244
245 /* Lockout access through VGA aperture*/
246 tmp = RREG32(mmVGA_HDP_CONTROL);
247 tmp |= VGA_HDP_CONTROL__VGA_MEMORY_DISABLE_MASK;
248 WREG32(mmVGA_HDP_CONTROL, tmp);
249
250 /* disable VGA render */
251 tmp = RREG32(mmVGA_RENDER_CONTROL);
252 tmp &= VGA_RENDER_CONTROL__VGA_VSTATUS_CNTL_MASK;
253 WREG32(mmVGA_RENDER_CONTROL, tmp);
254 }
255 /* Update configuration */
256 WREG32(mmMC_VM_SYSTEM_APERTURE_LOW_ADDR,
257 adev->gmc.vram_start >> 12);
258 WREG32(mmMC_VM_SYSTEM_APERTURE_HIGH_ADDR,
259 adev->gmc.vram_end >> 12);
260 WREG32(mmMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR,
261 adev->mem_scratch.gpu_addr >> 12);
262 WREG32(mmMC_VM_AGP_BASE, 0);
263 WREG32(mmMC_VM_AGP_TOP, adev->gmc.agp_end >> 22);
264 WREG32(mmMC_VM_AGP_BOT, adev->gmc.agp_start >> 22);
265
266 if (gmc_v6_0_wait_for_idle(ip_block))
267 dev_warn(adev->dev, "Wait for MC idle timedout !\n");
268}
269
270static int gmc_v6_0_mc_init(struct amdgpu_device *adev)
271{
272
273 u32 tmp;
274 int chansize, numchan;
275 int r;
276
277 tmp = RREG32(mmMC_ARB_RAMCFG);
278 if (tmp & (1 << 11))
279 chansize = 16;
280 else if (tmp & MC_ARB_RAMCFG__CHANSIZE_MASK)
281 chansize = 64;
282 else
283 chansize = 32;
284
285 tmp = RREG32(mmMC_SHARED_CHMAP);
286 switch ((tmp & MC_SHARED_CHMAP__NOOFCHAN_MASK) >> MC_SHARED_CHMAP__NOOFCHAN__SHIFT) {
287 case 0:
288 default:
289 numchan = 1;
290 break;
291 case 1:
292 numchan = 2;
293 break;
294 case 2:
295 numchan = 4;
296 break;
297 case 3:
298 numchan = 8;
299 break;
300 case 4:
301 numchan = 3;
302 break;
303 case 5:
304 numchan = 6;
305 break;
306 case 6:
307 numchan = 10;
308 break;
309 case 7:
310 numchan = 12;
311 break;
312 case 8:
313 numchan = 16;
314 break;
315 }
316 adev->gmc.vram_width = numchan * chansize;
317 /* size in MB on si */
318 adev->gmc.mc_vram_size = RREG32(mmCONFIG_MEMSIZE) * 1024ULL * 1024ULL;
319 adev->gmc.real_vram_size = RREG32(mmCONFIG_MEMSIZE) * 1024ULL * 1024ULL;
320
321 if (!(adev->flags & AMD_IS_APU)) {
322 r = amdgpu_device_resize_fb_bar(adev);
323 if (r)
324 return r;
325 }
326 adev->gmc.aper_base = pci_resource_start(adev->pdev, 0);
327 adev->gmc.aper_size = pci_resource_len(adev->pdev, 0);
328 adev->gmc.visible_vram_size = adev->gmc.aper_size;
329
330 /* set the gart size */
331 if (amdgpu_gart_size == -1) {
332 switch (adev->asic_type) {
333 case CHIP_HAINAN: /* no MM engines */
334 default:
335 adev->gmc.gart_size = 256ULL << 20;
336 break;
337 case CHIP_VERDE: /* UVD, VCE do not support GPUVM */
338 case CHIP_TAHITI: /* UVD, VCE do not support GPUVM */
339 case CHIP_PITCAIRN: /* UVD, VCE do not support GPUVM */
340 case CHIP_OLAND: /* UVD, VCE do not support GPUVM */
341 adev->gmc.gart_size = 1024ULL << 20;
342 break;
343 }
344 } else {
345 adev->gmc.gart_size = (u64)amdgpu_gart_size << 20;
346 }
347
348 adev->gmc.gart_size += adev->pm.smu_prv_buffer_size;
349 gmc_v6_0_vram_gtt_location(adev, mc: &adev->gmc);
350
351 return 0;
352}
353
354static void gmc_v6_0_flush_gpu_tlb(struct amdgpu_device *adev, uint32_t vmid,
355 uint32_t vmhub, uint32_t flush_type)
356{
357 WREG32(mmVM_INVALIDATE_REQUEST, 1 << vmid);
358}
359
360static uint64_t gmc_v6_0_emit_flush_gpu_tlb(struct amdgpu_ring *ring,
361 unsigned int vmid, uint64_t pd_addr)
362{
363 uint32_t reg;
364
365 /* write new base address */
366 if (vmid < 8)
367 reg = mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + vmid;
368 else
369 reg = mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + (vmid - 8);
370 amdgpu_ring_emit_wreg(ring, reg, pd_addr >> 12);
371
372 /* bits 0-15 are the VM contexts0-15 */
373 amdgpu_ring_emit_wreg(ring, mmVM_INVALIDATE_REQUEST, 1 << vmid);
374
375 return pd_addr;
376}
377
378static void gmc_v6_0_get_vm_pde(struct amdgpu_device *adev, int level,
379 uint64_t *addr, uint64_t *flags)
380{
381 BUG_ON(*addr & 0xFFFFFF0000000FFFULL);
382}
383
384static void gmc_v6_0_get_vm_pte(struct amdgpu_device *adev,
385 struct amdgpu_vm *vm,
386 struct amdgpu_bo *bo,
387 uint32_t vm_flags,
388 uint64_t *flags)
389{
390 *flags &= ~AMDGPU_PTE_EXECUTABLE;
391 *flags &= ~AMDGPU_PTE_PRT;
392}
393
394static void gmc_v6_0_set_fault_enable_default(struct amdgpu_device *adev,
395 bool value)
396{
397 u32 tmp;
398
399 tmp = RREG32(mmVM_CONTEXT1_CNTL);
400 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
401 RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
402 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
403 DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
404 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
405 PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, value);
406 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
407 VALID_PROTECTION_FAULT_ENABLE_DEFAULT, value);
408 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
409 READ_PROTECTION_FAULT_ENABLE_DEFAULT, value);
410 tmp = REG_SET_FIELD(tmp, VM_CONTEXT1_CNTL,
411 WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
412 WREG32(mmVM_CONTEXT1_CNTL, tmp);
413}
414
415 /**
416 * gmc_v8_0_set_prt() - set PRT VM fault
417 *
418 * @adev: amdgpu_device pointer
419 * @enable: enable/disable VM fault handling for PRT
420 */
421static void gmc_v6_0_set_prt(struct amdgpu_device *adev, bool enable)
422{
423 u32 tmp;
424
425 if (enable && !adev->gmc.prt_warning) {
426 dev_warn(adev->dev, "Disabling VM faults because of PRT request!\n");
427 adev->gmc.prt_warning = true;
428 }
429
430 tmp = RREG32(mmVM_PRT_CNTL);
431 tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
432 CB_DISABLE_FAULT_ON_UNMAPPED_ACCESS,
433 enable);
434 tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
435 TC_DISABLE_FAULT_ON_UNMAPPED_ACCESS,
436 enable);
437 tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
438 L2_CACHE_STORE_INVALID_ENTRIES,
439 enable);
440 tmp = REG_SET_FIELD(tmp, VM_PRT_CNTL,
441 L1_TLB_STORE_INVALID_ENTRIES,
442 enable);
443 WREG32(mmVM_PRT_CNTL, tmp);
444
445 if (enable) {
446 uint32_t low = AMDGPU_VA_RESERVED_BOTTOM >>
447 AMDGPU_GPU_PAGE_SHIFT;
448 uint32_t high = adev->vm_manager.max_pfn -
449 (AMDGPU_VA_RESERVED_TOP >> AMDGPU_GPU_PAGE_SHIFT);
450
451 WREG32(mmVM_PRT_APERTURE0_LOW_ADDR, low);
452 WREG32(mmVM_PRT_APERTURE1_LOW_ADDR, low);
453 WREG32(mmVM_PRT_APERTURE2_LOW_ADDR, low);
454 WREG32(mmVM_PRT_APERTURE3_LOW_ADDR, low);
455 WREG32(mmVM_PRT_APERTURE0_HIGH_ADDR, high);
456 WREG32(mmVM_PRT_APERTURE1_HIGH_ADDR, high);
457 WREG32(mmVM_PRT_APERTURE2_HIGH_ADDR, high);
458 WREG32(mmVM_PRT_APERTURE3_HIGH_ADDR, high);
459 } else {
460 WREG32(mmVM_PRT_APERTURE0_LOW_ADDR, 0xfffffff);
461 WREG32(mmVM_PRT_APERTURE1_LOW_ADDR, 0xfffffff);
462 WREG32(mmVM_PRT_APERTURE2_LOW_ADDR, 0xfffffff);
463 WREG32(mmVM_PRT_APERTURE3_LOW_ADDR, 0xfffffff);
464 WREG32(mmVM_PRT_APERTURE0_HIGH_ADDR, 0x0);
465 WREG32(mmVM_PRT_APERTURE1_HIGH_ADDR, 0x0);
466 WREG32(mmVM_PRT_APERTURE2_HIGH_ADDR, 0x0);
467 WREG32(mmVM_PRT_APERTURE3_HIGH_ADDR, 0x0);
468 }
469}
470
471static int gmc_v6_0_gart_enable(struct amdgpu_device *adev)
472{
473 uint64_t table_addr;
474 u32 field;
475 int i;
476
477 if (adev->gart.bo == NULL) {
478 dev_err(adev->dev, "No VRAM object for PCIE GART.\n");
479 return -EINVAL;
480 }
481 amdgpu_gtt_mgr_recover(mgr: &adev->mman.gtt_mgr);
482
483 table_addr = amdgpu_bo_gpu_offset(bo: adev->gart.bo);
484
485 /* Setup TLB control */
486 WREG32(mmMC_VM_MX_L1_TLB_CNTL,
487 (0xA << 7) |
488 MC_VM_MX_L1_TLB_CNTL__ENABLE_L1_TLB_MASK |
489 MC_VM_MX_L1_TLB_CNTL__ENABLE_L1_FRAGMENT_PROCESSING_MASK |
490 MC_VM_MX_L1_TLB_CNTL__SYSTEM_ACCESS_MODE_MASK |
491 MC_VM_MX_L1_TLB_CNTL__ENABLE_ADVANCED_DRIVER_MODEL_MASK |
492 (0UL << MC_VM_MX_L1_TLB_CNTL__SYSTEM_APERTURE_UNMAPPED_ACCESS__SHIFT));
493 /* Setup L2 cache */
494 WREG32(mmVM_L2_CNTL,
495 VM_L2_CNTL__ENABLE_L2_CACHE_MASK |
496 VM_L2_CNTL__ENABLE_L2_FRAGMENT_PROCESSING_MASK |
497 VM_L2_CNTL__ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE_MASK |
498 VM_L2_CNTL__ENABLE_L2_PDE0_CACHE_LRU_UPDATE_BY_WRITE_MASK |
499 (7UL << VM_L2_CNTL__EFFECTIVE_L2_QUEUE_SIZE__SHIFT) |
500 (1UL << VM_L2_CNTL__CONTEXT1_IDENTITY_ACCESS_MODE__SHIFT));
501 WREG32(mmVM_L2_CNTL2,
502 VM_L2_CNTL2__INVALIDATE_ALL_L1_TLBS_MASK |
503 VM_L2_CNTL2__INVALIDATE_L2_CACHE_MASK);
504
505 field = adev->vm_manager.fragment_size;
506 WREG32(mmVM_L2_CNTL3,
507 VM_L2_CNTL3__L2_CACHE_BIGK_ASSOCIATIVITY_MASK |
508 (field << VM_L2_CNTL3__BANK_SELECT__SHIFT) |
509 (field << VM_L2_CNTL3__L2_CACHE_BIGK_FRAGMENT_SIZE__SHIFT));
510 /* setup context0 */
511 WREG32(mmVM_CONTEXT0_PAGE_TABLE_START_ADDR, adev->gmc.gart_start >> 12);
512 WREG32(mmVM_CONTEXT0_PAGE_TABLE_END_ADDR, adev->gmc.gart_end >> 12);
513 WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR, table_addr >> 12);
514 WREG32(mmVM_CONTEXT0_PROTECTION_FAULT_DEFAULT_ADDR,
515 (u32)(adev->dummy_page_addr >> 12));
516 WREG32(mmVM_CONTEXT0_CNTL2, 0);
517 WREG32(mmVM_CONTEXT0_CNTL,
518 VM_CONTEXT0_CNTL__ENABLE_CONTEXT_MASK |
519 (0UL << VM_CONTEXT0_CNTL__PAGE_TABLE_DEPTH__SHIFT) |
520 VM_CONTEXT0_CNTL__RANGE_PROTECTION_FAULT_ENABLE_DEFAULT_MASK);
521
522 WREG32(0x575, 0);
523 WREG32(0x576, 0);
524 WREG32(0x577, 0);
525
526 /* empty context1-15 */
527 /* set vm size, must be a multiple of 4 */
528 WREG32(mmVM_CONTEXT1_PAGE_TABLE_START_ADDR, 0);
529 WREG32(mmVM_CONTEXT1_PAGE_TABLE_END_ADDR, adev->vm_manager.max_pfn - 1);
530 /* Assign the pt base to something valid for now; the pts used for
531 * the VMs are determined by the application and setup and assigned
532 * on the fly in the vm part of radeon_gart.c
533 */
534 for (i = 1; i < AMDGPU_NUM_VMID; i++) {
535 if (i < 8)
536 WREG32(mmVM_CONTEXT0_PAGE_TABLE_BASE_ADDR + i,
537 table_addr >> 12);
538 else
539 WREG32(mmVM_CONTEXT8_PAGE_TABLE_BASE_ADDR + i - 8,
540 table_addr >> 12);
541 }
542
543 /* enable context1-15 */
544 WREG32(mmVM_CONTEXT1_PROTECTION_FAULT_DEFAULT_ADDR,
545 (u32)(adev->dummy_page_addr >> 12));
546 WREG32(mmVM_CONTEXT1_CNTL2, 4);
547 WREG32(mmVM_CONTEXT1_CNTL,
548 VM_CONTEXT1_CNTL__ENABLE_CONTEXT_MASK |
549 (1UL << VM_CONTEXT1_CNTL__PAGE_TABLE_DEPTH__SHIFT) |
550 ((adev->vm_manager.block_size - 9)
551 << VM_CONTEXT1_CNTL__PAGE_TABLE_BLOCK_SIZE__SHIFT));
552 if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_ALWAYS)
553 gmc_v6_0_set_fault_enable_default(adev, value: false);
554 else
555 gmc_v6_0_set_fault_enable_default(adev, value: true);
556
557 gmc_v6_0_flush_gpu_tlb(adev, vmid: 0, vmhub: 0, flush_type: 0);
558 dev_info(adev->dev, "PCIE GART of %uM enabled (table at 0x%016llX).\n",
559 (unsigned int)(adev->gmc.gart_size >> 20),
560 (unsigned long long)table_addr);
561 return 0;
562}
563
564static int gmc_v6_0_gart_init(struct amdgpu_device *adev)
565{
566 int r;
567
568 if (adev->gart.bo) {
569 dev_warn(adev->dev, "gmc_v6_0 PCIE GART already initialized\n");
570 return 0;
571 }
572 r = amdgpu_gart_init(adev);
573 if (r)
574 return r;
575 adev->gart.table_size = adev->gart.num_gpu_pages * 8;
576 adev->gart.gart_pte_flags = 0;
577 return amdgpu_gart_table_vram_alloc(adev);
578}
579
580static void gmc_v6_0_gart_disable(struct amdgpu_device *adev)
581{
582 /*unsigned i;
583
584 for (i = 1; i < 16; ++i) {
585 uint32_t reg;
586 if (i < 8)
587 reg = VM_CONTEXT0_PAGE_TABLE_BASE_ADDR + i ;
588 else
589 reg = VM_CONTEXT8_PAGE_TABLE_BASE_ADDR + (i - 8);
590 adev->vm_manager.saved_table_addr[i] = RREG32(reg);
591 }*/
592
593 /* Disable all tables */
594 WREG32(mmVM_CONTEXT0_CNTL, 0);
595 WREG32(mmVM_CONTEXT1_CNTL, 0);
596 /* Setup TLB control */
597 WREG32(mmMC_VM_MX_L1_TLB_CNTL,
598 MC_VM_MX_L1_TLB_CNTL__SYSTEM_ACCESS_MODE_MASK |
599 (0UL << MC_VM_MX_L1_TLB_CNTL__SYSTEM_APERTURE_UNMAPPED_ACCESS__SHIFT));
600 /* Setup L2 cache */
601 WREG32(mmVM_L2_CNTL,
602 VM_L2_CNTL__ENABLE_L2_PTE_CACHE_LRU_UPDATE_BY_WRITE_MASK |
603 VM_L2_CNTL__ENABLE_L2_PDE0_CACHE_LRU_UPDATE_BY_WRITE_MASK |
604 (7UL << VM_L2_CNTL__EFFECTIVE_L2_QUEUE_SIZE__SHIFT) |
605 (1UL << VM_L2_CNTL__CONTEXT1_IDENTITY_ACCESS_MODE__SHIFT));
606 WREG32(mmVM_L2_CNTL2, 0);
607 WREG32(mmVM_L2_CNTL3,
608 VM_L2_CNTL3__L2_CACHE_BIGK_ASSOCIATIVITY_MASK |
609 (0UL << VM_L2_CNTL3__L2_CACHE_BIGK_FRAGMENT_SIZE__SHIFT));
610}
611
612static void gmc_v6_0_vm_decode_fault(struct amdgpu_device *adev,
613 u32 status, u32 addr)
614{
615 u32 mc_id;
616 u32 vmid = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS, VMID);
617 u32 protections = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
618 PROTECTIONS);
619
620 mc_id = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
621 MEMORY_CLIENT_ID);
622
623 dev_err(adev->dev, "VM fault (0x%02x, vmid %d) at page %u, %s from %d\n",
624 protections, vmid, addr,
625 REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
626 MEMORY_CLIENT_RW) ?
627 "write" : "read", mc_id);
628}
629
630static const u32 mc_cg_registers[] = {
631 mmMC_HUB_MISC_HUB_CG,
632 mmMC_HUB_MISC_SIP_CG,
633 mmMC_HUB_MISC_VM_CG,
634 mmMC_XPB_CLK_GAT,
635 mmATC_MISC_CG,
636 mmMC_CITF_MISC_WR_CG,
637 mmMC_CITF_MISC_RD_CG,
638 mmMC_CITF_MISC_VM_CG,
639 mmVM_L2_CG,
640};
641
642static const u32 mc_cg_ls_en[] = {
643 MC_HUB_MISC_HUB_CG__MEM_LS_ENABLE_MASK,
644 MC_HUB_MISC_SIP_CG__MEM_LS_ENABLE_MASK,
645 MC_HUB_MISC_VM_CG__MEM_LS_ENABLE_MASK,
646 MC_XPB_CLK_GAT__MEM_LS_ENABLE_MASK,
647 ATC_MISC_CG__MEM_LS_ENABLE_MASK,
648 MC_CITF_MISC_WR_CG__MEM_LS_ENABLE_MASK,
649 MC_CITF_MISC_RD_CG__MEM_LS_ENABLE_MASK,
650 MC_CITF_MISC_VM_CG__MEM_LS_ENABLE_MASK,
651 VM_L2_CG__MEM_LS_ENABLE_MASK,
652};
653
654static const u32 mc_cg_en[] = {
655 MC_HUB_MISC_HUB_CG__ENABLE_MASK,
656 MC_HUB_MISC_SIP_CG__ENABLE_MASK,
657 MC_HUB_MISC_VM_CG__ENABLE_MASK,
658 MC_XPB_CLK_GAT__ENABLE_MASK,
659 ATC_MISC_CG__ENABLE_MASK,
660 MC_CITF_MISC_WR_CG__ENABLE_MASK,
661 MC_CITF_MISC_RD_CG__ENABLE_MASK,
662 MC_CITF_MISC_VM_CG__ENABLE_MASK,
663 VM_L2_CG__ENABLE_MASK,
664};
665
666static void gmc_v6_0_enable_mc_ls(struct amdgpu_device *adev,
667 bool enable)
668{
669 int i;
670 u32 orig, data;
671
672 for (i = 0; i < ARRAY_SIZE(mc_cg_registers); i++) {
673 orig = data = RREG32(mc_cg_registers[i]);
674 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_LS))
675 data |= mc_cg_ls_en[i];
676 else
677 data &= ~mc_cg_ls_en[i];
678 if (data != orig)
679 WREG32(mc_cg_registers[i], data);
680 }
681}
682
683static void gmc_v6_0_enable_mc_mgcg(struct amdgpu_device *adev,
684 bool enable)
685{
686 int i;
687 u32 orig, data;
688
689 for (i = 0; i < ARRAY_SIZE(mc_cg_registers); i++) {
690 orig = data = RREG32(mc_cg_registers[i]);
691 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_MGCG))
692 data |= mc_cg_en[i];
693 else
694 data &= ~mc_cg_en[i];
695 if (data != orig)
696 WREG32(mc_cg_registers[i], data);
697 }
698}
699
700static void gmc_v6_0_enable_bif_mgls(struct amdgpu_device *adev,
701 bool enable)
702{
703 u32 orig, data;
704
705 orig = data = RREG32_PCIE(ixPCIE_CNTL2);
706
707 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_BIF_LS)) {
708 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_LS_EN, 1);
709 data = REG_SET_FIELD(data, PCIE_CNTL2, MST_MEM_LS_EN, 1);
710 data = REG_SET_FIELD(data, PCIE_CNTL2, REPLAY_MEM_LS_EN, 1);
711 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_AGGRESSIVE_LS_EN, 1);
712 } else {
713 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_LS_EN, 0);
714 data = REG_SET_FIELD(data, PCIE_CNTL2, MST_MEM_LS_EN, 0);
715 data = REG_SET_FIELD(data, PCIE_CNTL2, REPLAY_MEM_LS_EN, 0);
716 data = REG_SET_FIELD(data, PCIE_CNTL2, SLV_MEM_AGGRESSIVE_LS_EN, 0);
717 }
718
719 if (orig != data)
720 WREG32_PCIE(ixPCIE_CNTL2, data);
721}
722
723static void gmc_v6_0_enable_hdp_mgcg(struct amdgpu_device *adev,
724 bool enable)
725{
726 u32 orig, data;
727
728 orig = data = RREG32(mmHDP_HOST_PATH_CNTL);
729
730 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_HDP_MGCG))
731 data = REG_SET_FIELD(data, HDP_HOST_PATH_CNTL, CLOCK_GATING_DIS, 0);
732 else
733 data = REG_SET_FIELD(data, HDP_HOST_PATH_CNTL, CLOCK_GATING_DIS, 1);
734
735 if (orig != data)
736 WREG32(mmHDP_HOST_PATH_CNTL, data);
737}
738
739static void gmc_v6_0_enable_hdp_ls(struct amdgpu_device *adev,
740 bool enable)
741{
742 u32 orig, data;
743
744 orig = data = RREG32(mmHDP_MEM_POWER_LS);
745
746 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_HDP_LS))
747 data = REG_SET_FIELD(data, HDP_MEM_POWER_LS, LS_ENABLE, 1);
748 else
749 data = REG_SET_FIELD(data, HDP_MEM_POWER_LS, LS_ENABLE, 0);
750
751 if (orig != data)
752 WREG32(mmHDP_MEM_POWER_LS, data);
753}
754
755static int gmc_v6_0_convert_vram_type(int mc_seq_vram_type)
756{
757 switch (mc_seq_vram_type) {
758 case MC_SEQ_MISC0__MT__GDDR1:
759 return AMDGPU_VRAM_TYPE_GDDR1;
760 case MC_SEQ_MISC0__MT__DDR2:
761 return AMDGPU_VRAM_TYPE_DDR2;
762 case MC_SEQ_MISC0__MT__GDDR3:
763 return AMDGPU_VRAM_TYPE_GDDR3;
764 case MC_SEQ_MISC0__MT__GDDR4:
765 return AMDGPU_VRAM_TYPE_GDDR4;
766 case MC_SEQ_MISC0__MT__GDDR5:
767 return AMDGPU_VRAM_TYPE_GDDR5;
768 case MC_SEQ_MISC0__MT__DDR3:
769 return AMDGPU_VRAM_TYPE_DDR3;
770 default:
771 return AMDGPU_VRAM_TYPE_UNKNOWN;
772 }
773}
774
775static int gmc_v6_0_early_init(struct amdgpu_ip_block *ip_block)
776{
777 struct amdgpu_device *adev = ip_block->adev;
778
779 gmc_v6_0_set_gmc_funcs(adev);
780 gmc_v6_0_set_irq_funcs(adev);
781
782 return 0;
783}
784
785static int gmc_v6_0_late_init(struct amdgpu_ip_block *ip_block)
786{
787 struct amdgpu_device *adev = ip_block->adev;
788
789 if (amdgpu_vm_fault_stop != AMDGPU_VM_FAULT_STOP_ALWAYS)
790 return amdgpu_irq_get(adev, src: &adev->gmc.vm_fault, type: 0);
791 else
792 return 0;
793}
794
795static unsigned int gmc_v6_0_get_vbios_fb_size(struct amdgpu_device *adev)
796{
797 u32 d1vga_control = RREG32(mmD1VGA_CONTROL);
798 unsigned int size;
799
800 if (REG_GET_FIELD(d1vga_control, D1VGA_CONTROL, D1VGA_MODE_ENABLE)) {
801 size = AMDGPU_VBIOS_VGA_ALLOCATION;
802 } else {
803 u32 viewport = RREG32(mmVIEWPORT_SIZE);
804
805 size = (REG_GET_FIELD(viewport, VIEWPORT_SIZE, VIEWPORT_HEIGHT) *
806 REG_GET_FIELD(viewport, VIEWPORT_SIZE, VIEWPORT_WIDTH) *
807 4);
808 }
809 return size;
810}
811
812static int gmc_v6_0_sw_init(struct amdgpu_ip_block *ip_block)
813{
814 int r;
815 struct amdgpu_device *adev = ip_block->adev;
816
817 set_bit(AMDGPU_GFXHUB(0), addr: adev->vmhubs_mask);
818
819 if (adev->flags & AMD_IS_APU) {
820 adev->gmc.vram_type = AMDGPU_VRAM_TYPE_UNKNOWN;
821 } else {
822 u32 tmp = RREG32(mmMC_SEQ_MISC0);
823
824 tmp &= MC_SEQ_MISC0__MT__MASK;
825 adev->gmc.vram_type = gmc_v6_0_convert_vram_type(mc_seq_vram_type: tmp);
826 }
827
828 r = amdgpu_irq_add_id(adev, AMDGPU_IRQ_CLIENTID_LEGACY, src_id: 146, source: &adev->gmc.vm_fault);
829 if (r)
830 return r;
831
832 r = amdgpu_irq_add_id(adev, AMDGPU_IRQ_CLIENTID_LEGACY, src_id: 147, source: &adev->gmc.vm_fault);
833 if (r)
834 return r;
835
836 amdgpu_vm_adjust_size(adev, min_vm_size: 64, fragment_size_default: 9, max_level: 1, max_bits: 40);
837
838 adev->gmc.mc_mask = 0xffffffffffULL;
839
840 r = dma_set_mask_and_coherent(dev: adev->dev, DMA_BIT_MASK(40));
841 if (r) {
842 dev_warn(adev->dev, "No suitable DMA available.\n");
843 return r;
844 }
845 adev->need_swiotlb = drm_need_swiotlb(dma_bits: 40);
846
847 r = gmc_v6_0_init_microcode(adev);
848 if (r) {
849 dev_err(adev->dev, "Failed to load mc firmware!\n");
850 return r;
851 }
852
853 r = gmc_v6_0_mc_init(adev);
854 if (r)
855 return r;
856
857 amdgpu_gmc_get_vbios_allocations(adev);
858
859 r = amdgpu_bo_init(adev);
860 if (r)
861 return r;
862
863 r = gmc_v6_0_gart_init(adev);
864 if (r)
865 return r;
866
867 /*
868 * number of VMs
869 * VMID 0 is reserved for System
870 * amdgpu graphics/compute will use VMIDs 1-7
871 * amdkfd will use VMIDs 8-15
872 */
873 adev->vm_manager.first_kfd_vmid = 8;
874 amdgpu_vm_manager_init(adev);
875
876 /* base offset of vram pages */
877 if (adev->flags & AMD_IS_APU) {
878 u64 tmp = RREG32(mmMC_VM_FB_OFFSET);
879
880 tmp <<= 22;
881 adev->vm_manager.vram_base_offset = tmp;
882 } else {
883 adev->vm_manager.vram_base_offset = 0;
884 }
885
886 return 0;
887}
888
889static int gmc_v6_0_sw_fini(struct amdgpu_ip_block *ip_block)
890{
891 struct amdgpu_device *adev = ip_block->adev;
892
893 amdgpu_gem_force_release(adev);
894 amdgpu_vm_manager_fini(adev);
895 amdgpu_gart_table_vram_free(adev);
896 amdgpu_bo_fini(adev);
897 amdgpu_ucode_release(fw: &adev->gmc.fw);
898
899 return 0;
900}
901
902static int gmc_v6_0_hw_init(struct amdgpu_ip_block *ip_block)
903{
904 int r;
905 struct amdgpu_device *adev = ip_block->adev;
906
907 gmc_v6_0_mc_program(adev);
908
909 if (!(adev->flags & AMD_IS_APU)) {
910 r = gmc_v6_0_mc_load_microcode(adev);
911 if (r) {
912 dev_err(adev->dev, "Failed to load MC firmware!\n");
913 return r;
914 }
915 }
916
917 r = gmc_v6_0_gart_enable(adev);
918 if (r)
919 return r;
920
921 if (amdgpu_emu_mode == 1)
922 return amdgpu_gmc_vram_checking(adev);
923
924 return 0;
925}
926
927static int gmc_v6_0_hw_fini(struct amdgpu_ip_block *ip_block)
928{
929 struct amdgpu_device *adev = ip_block->adev;
930
931 amdgpu_irq_put(adev, src: &adev->gmc.vm_fault, type: 0);
932 gmc_v6_0_gart_disable(adev);
933
934 return 0;
935}
936
937static int gmc_v6_0_suspend(struct amdgpu_ip_block *ip_block)
938{
939 gmc_v6_0_hw_fini(ip_block);
940
941 return 0;
942}
943
944static int gmc_v6_0_resume(struct amdgpu_ip_block *ip_block)
945{
946 int r;
947 struct amdgpu_device *adev = ip_block->adev;
948
949 r = gmc_v6_0_hw_init(ip_block);
950 if (r)
951 return r;
952
953 amdgpu_vmid_reset_all(adev);
954
955 return 0;
956}
957
958static bool gmc_v6_0_is_idle(struct amdgpu_ip_block *ip_block)
959{
960 struct amdgpu_device *adev = ip_block->adev;
961
962 u32 tmp = RREG32(mmSRBM_STATUS);
963
964 if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
965 SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK | SRBM_STATUS__VMC_BUSY_MASK))
966 return false;
967
968 return true;
969}
970
971static int gmc_v6_0_wait_for_idle(struct amdgpu_ip_block *ip_block)
972{
973 unsigned int i;
974 struct amdgpu_device *adev = ip_block->adev;
975
976 for (i = 0; i < adev->usec_timeout; i++) {
977 if (gmc_v6_0_is_idle(ip_block))
978 return 0;
979 udelay(usec: 1);
980 }
981 return -ETIMEDOUT;
982
983}
984
985static int gmc_v6_0_soft_reset(struct amdgpu_ip_block *ip_block)
986{
987 struct amdgpu_device *adev = ip_block->adev;
988
989 u32 srbm_soft_reset = 0;
990 u32 tmp = RREG32(mmSRBM_STATUS);
991
992 if (tmp & SRBM_STATUS__VMC_BUSY_MASK)
993 srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset,
994 SRBM_SOFT_RESET, SOFT_RESET_VMC, 1);
995
996 if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
997 SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK)) {
998 if (!(adev->flags & AMD_IS_APU))
999 srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset,
1000 SRBM_SOFT_RESET, SOFT_RESET_MC, 1);
1001 }
1002
1003 if (srbm_soft_reset) {
1004 gmc_v6_0_mc_stop(adev);
1005
1006 if (gmc_v6_0_wait_for_idle(ip_block))
1007 dev_warn(adev->dev, "Wait for GMC idle timed out !\n");
1008
1009 tmp = RREG32(mmSRBM_SOFT_RESET);
1010 tmp |= srbm_soft_reset;
1011 dev_info(adev->dev, "SRBM_SOFT_RESET=0x%08X\n", tmp);
1012 WREG32(mmSRBM_SOFT_RESET, tmp);
1013 tmp = RREG32(mmSRBM_SOFT_RESET);
1014
1015 udelay(usec: 50);
1016
1017 tmp &= ~srbm_soft_reset;
1018 WREG32(mmSRBM_SOFT_RESET, tmp);
1019 tmp = RREG32(mmSRBM_SOFT_RESET);
1020
1021 udelay(usec: 50);
1022
1023 gmc_v6_0_mc_resume(adev);
1024 udelay(usec: 50);
1025 }
1026
1027 return 0;
1028}
1029
1030static int gmc_v6_0_vm_fault_interrupt_state(struct amdgpu_device *adev,
1031 struct amdgpu_irq_src *src,
1032 unsigned int type,
1033 enum amdgpu_interrupt_state state)
1034{
1035 u32 tmp;
1036 u32 bits = (VM_CONTEXT1_CNTL__RANGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1037 VM_CONTEXT1_CNTL__DUMMY_PAGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1038 VM_CONTEXT1_CNTL__PDE0_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1039 VM_CONTEXT1_CNTL__VALID_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1040 VM_CONTEXT1_CNTL__READ_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1041 VM_CONTEXT1_CNTL__WRITE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK);
1042
1043 switch (state) {
1044 case AMDGPU_IRQ_STATE_DISABLE:
1045 tmp = RREG32(mmVM_CONTEXT0_CNTL);
1046 tmp &= ~bits;
1047 WREG32(mmVM_CONTEXT0_CNTL, tmp);
1048 tmp = RREG32(mmVM_CONTEXT1_CNTL);
1049 tmp &= ~bits;
1050 WREG32(mmVM_CONTEXT1_CNTL, tmp);
1051 break;
1052 case AMDGPU_IRQ_STATE_ENABLE:
1053 tmp = RREG32(mmVM_CONTEXT0_CNTL);
1054 tmp |= bits;
1055 WREG32(mmVM_CONTEXT0_CNTL, tmp);
1056 tmp = RREG32(mmVM_CONTEXT1_CNTL);
1057 tmp |= bits;
1058 WREG32(mmVM_CONTEXT1_CNTL, tmp);
1059 break;
1060 default:
1061 break;
1062 }
1063
1064 return 0;
1065}
1066
1067static int gmc_v6_0_process_interrupt(struct amdgpu_device *adev,
1068 struct amdgpu_irq_src *source,
1069 struct amdgpu_iv_entry *entry)
1070{
1071 u32 addr, status;
1072
1073 /* Delegate to the soft IRQ handler ring */
1074 if (adev->irq.ih_soft.enabled && entry->ih != &adev->irq.ih_soft) {
1075 amdgpu_irq_delegate(adev, entry, num_dw: 4);
1076 return 1;
1077 }
1078
1079 addr = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_ADDR);
1080 status = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_STATUS);
1081 WREG32_P(mmVM_CONTEXT1_CNTL2, 1, ~1);
1082
1083 if (!addr && !status)
1084 return 0;
1085
1086 amdgpu_vm_update_fault_cache(adev, pasid: entry->pasid,
1087 addr: ((u64)addr) << AMDGPU_GPU_PAGE_SHIFT,
1088 status, AMDGPU_GFXHUB(0));
1089
1090 if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_FIRST)
1091 gmc_v6_0_set_fault_enable_default(adev, value: false);
1092
1093 if (printk_ratelimit()) {
1094 dev_err(adev->dev, "GPU fault detected: %d 0x%08x\n",
1095 entry->src_id, entry->src_data[0]);
1096 dev_err(adev->dev, " VM_CONTEXT1_PROTECTION_FAULT_ADDR 0x%08X\n",
1097 addr);
1098 dev_err(adev->dev, " VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n",
1099 status);
1100 gmc_v6_0_vm_decode_fault(adev, status, addr);
1101 }
1102
1103 return 0;
1104}
1105
1106static int gmc_v6_0_set_clockgating_state(struct amdgpu_ip_block *ip_block,
1107 enum amd_clockgating_state state)
1108{
1109 struct amdgpu_device *adev = ip_block->adev;
1110 bool gate = false;
1111
1112 if (state == AMD_CG_STATE_GATE)
1113 gate = true;
1114
1115 if (!(adev->flags & AMD_IS_APU)) {
1116 gmc_v6_0_enable_mc_mgcg(adev, enable: gate);
1117 gmc_v6_0_enable_mc_ls(adev, enable: gate);
1118 }
1119 gmc_v6_0_enable_bif_mgls(adev, enable: gate);
1120 gmc_v6_0_enable_hdp_mgcg(adev, enable: gate);
1121 gmc_v6_0_enable_hdp_ls(adev, enable: gate);
1122
1123 return 0;
1124}
1125
1126static int gmc_v6_0_set_powergating_state(struct amdgpu_ip_block *ip_block,
1127 enum amd_powergating_state state)
1128{
1129 return 0;
1130}
1131
1132static const struct amd_ip_funcs gmc_v6_0_ip_funcs = {
1133 .name = "gmc_v6_0",
1134 .early_init = gmc_v6_0_early_init,
1135 .late_init = gmc_v6_0_late_init,
1136 .sw_init = gmc_v6_0_sw_init,
1137 .sw_fini = gmc_v6_0_sw_fini,
1138 .hw_init = gmc_v6_0_hw_init,
1139 .hw_fini = gmc_v6_0_hw_fini,
1140 .suspend = gmc_v6_0_suspend,
1141 .resume = gmc_v6_0_resume,
1142 .is_idle = gmc_v6_0_is_idle,
1143 .wait_for_idle = gmc_v6_0_wait_for_idle,
1144 .soft_reset = gmc_v6_0_soft_reset,
1145 .set_clockgating_state = gmc_v6_0_set_clockgating_state,
1146 .set_powergating_state = gmc_v6_0_set_powergating_state,
1147};
1148
1149static const struct amdgpu_gmc_funcs gmc_v6_0_gmc_funcs = {
1150 .flush_gpu_tlb = gmc_v6_0_flush_gpu_tlb,
1151 .emit_flush_gpu_tlb = gmc_v6_0_emit_flush_gpu_tlb,
1152 .set_prt = gmc_v6_0_set_prt,
1153 .get_vm_pde = gmc_v6_0_get_vm_pde,
1154 .get_vm_pte = gmc_v6_0_get_vm_pte,
1155 .get_vbios_fb_size = gmc_v6_0_get_vbios_fb_size,
1156};
1157
1158static const struct amdgpu_irq_src_funcs gmc_v6_0_irq_funcs = {
1159 .set = gmc_v6_0_vm_fault_interrupt_state,
1160 .process = gmc_v6_0_process_interrupt,
1161};
1162
1163static void gmc_v6_0_set_gmc_funcs(struct amdgpu_device *adev)
1164{
1165 adev->gmc.gmc_funcs = &gmc_v6_0_gmc_funcs;
1166}
1167
1168static void gmc_v6_0_set_irq_funcs(struct amdgpu_device *adev)
1169{
1170 adev->gmc.vm_fault.num_types = 1;
1171 adev->gmc.vm_fault.funcs = &gmc_v6_0_irq_funcs;
1172}
1173
1174const struct amdgpu_ip_block_version gmc_v6_0_ip_block = {
1175 .type = AMD_IP_BLOCK_TYPE_GMC,
1176 .major = 6,
1177 .minor = 0,
1178 .rev = 0,
1179 .funcs = &gmc_v6_0_ip_funcs,
1180};
1181

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