1 /*
2 * Copyright 2014 Advanced Micro Devices, Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 */
23
24 #include <linux/firmware.h>
25 #include <linux/module.h>
26 #include <linux/pci.h>
27
28 #include <drm/drm_cache.h>
29 #include "amdgpu.h"
30 #include "cikd.h"
31 #include "cik.h"
32 #include "gmc_v7_0.h"
33 #include "amdgpu_ucode.h"
34 #include "amdgpu_amdkfd.h"
35 #include "amdgpu_gem.h"
36
37 #include "bif/bif_4_1_d.h"
38 #include "bif/bif_4_1_sh_mask.h"
39
40 #include "gmc/gmc_7_1_d.h"
41 #include "gmc/gmc_7_1_sh_mask.h"
42
43 #include "oss/oss_2_0_d.h"
44 #include "oss/oss_2_0_sh_mask.h"
45
46 #include "dce/dce_8_0_d.h"
47 #include "dce/dce_8_0_sh_mask.h"
48
49 #include "amdgpu_atombios.h"
50
51 #include "ivsrcid/ivsrcid_vislands30.h"
52
53 static void gmc_v7_0_set_gmc_funcs(struct amdgpu_device *adev);
54 static void gmc_v7_0_set_irq_funcs(struct amdgpu_device *adev);
55 static int gmc_v7_0_wait_for_idle(void *handle);
56
57 MODULE_FIRMWARE("amdgpu/bonaire_mc.bin");
58 MODULE_FIRMWARE("amdgpu/hawaii_mc.bin");
59 MODULE_FIRMWARE("amdgpu/topaz_mc.bin");
60
61 static const u32 golden_settings_iceland_a11[] =
62 {
63 mmVM_PRT_APERTURE0_LOW_ADDR, 0x0fffffff, 0x0fffffff,
64 mmVM_PRT_APERTURE1_LOW_ADDR, 0x0fffffff, 0x0fffffff,
65 mmVM_PRT_APERTURE2_LOW_ADDR, 0x0fffffff, 0x0fffffff,
66 mmVM_PRT_APERTURE3_LOW_ADDR, 0x0fffffff, 0x0fffffff
67 };
68
69 static const u32 iceland_mgcg_cgcg_init[] =
70 {
71 mmMC_MEM_POWER_LS, 0xffffffff, 0x00000104
72 };
73
gmc_v7_0_init_golden_registers(struct amdgpu_device * adev)74 static void gmc_v7_0_init_golden_registers(struct amdgpu_device *adev)
75 {
76 switch (adev->asic_type) {
77 case CHIP_TOPAZ:
78 amdgpu_device_program_register_sequence(adev,
79 iceland_mgcg_cgcg_init,
80 ARRAY_SIZE(iceland_mgcg_cgcg_init));
81 amdgpu_device_program_register_sequence(adev,
82 golden_settings_iceland_a11,
83 ARRAY_SIZE(golden_settings_iceland_a11));
84 break;
85 default:
86 break;
87 }
88 }
89
gmc_v7_0_mc_stop(struct amdgpu_device * adev)90 static void gmc_v7_0_mc_stop(struct amdgpu_device *adev)
91 {
92 u32 blackout;
93
94 gmc_v7_0_wait_for_idle((void *)adev);
95
96 blackout = RREG32(mmMC_SHARED_BLACKOUT_CNTL);
97 if (REG_GET_FIELD(blackout, MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE) != 1) {
98 /* Block CPU access */
99 WREG32(mmBIF_FB_EN, 0);
100 /* blackout the MC */
101 blackout = REG_SET_FIELD(blackout,
102 MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE, 0);
103 WREG32(mmMC_SHARED_BLACKOUT_CNTL, blackout | 1);
104 }
105 /* wait for the MC to settle */
106 udelay(100);
107 }
108
gmc_v7_0_mc_resume(struct amdgpu_device * adev)109 static void gmc_v7_0_mc_resume(struct amdgpu_device *adev)
110 {
111 u32 tmp;
112
113 /* unblackout the MC */
114 tmp = RREG32(mmMC_SHARED_BLACKOUT_CNTL);
115 tmp = REG_SET_FIELD(tmp, MC_SHARED_BLACKOUT_CNTL, BLACKOUT_MODE, 0);
116 WREG32(mmMC_SHARED_BLACKOUT_CNTL, tmp);
117 /* allow CPU access */
118 tmp = REG_SET_FIELD(0, BIF_FB_EN, FB_READ_EN, 1);
119 tmp = REG_SET_FIELD(tmp, BIF_FB_EN, FB_WRITE_EN, 1);
120 WREG32(mmBIF_FB_EN, tmp);
121 }
122
123 /**
124 * gmc_v7_0_init_microcode - load ucode images from disk
125 *
126 * @adev: amdgpu_device pointer
127 *
128 * Use the firmware interface to load the ucode images into
129 * the driver (not loaded into hw).
130 * Returns 0 on success, error on failure.
131 */
gmc_v7_0_init_microcode(struct amdgpu_device * adev)132 static int gmc_v7_0_init_microcode(struct amdgpu_device *adev)
133 {
134 const char *chip_name;
135 char fw_name[30];
136 int err;
137
138 DRM_DEBUG("\n");
139
140 switch (adev->asic_type) {
141 case CHIP_BONAIRE:
142 chip_name = "bonaire";
143 break;
144 case CHIP_HAWAII:
145 chip_name = "hawaii";
146 break;
147 case CHIP_TOPAZ:
148 chip_name = "topaz";
149 break;
150 case CHIP_KAVERI:
151 case CHIP_KABINI:
152 case CHIP_MULLINS:
153 return 0;
154 default: BUG();
155 }
156
157 snprintf(fw_name, sizeof(fw_name), "amdgpu/%s_mc.bin", chip_name);
158
159 err = request_firmware(&adev->gmc.fw, fw_name, adev->dev);
160 if (err)
161 goto out;
162 err = amdgpu_ucode_validate(adev->gmc.fw);
163
164 out:
165 if (err) {
166 pr_err("cik_mc: Failed to load firmware \"%s\"\n", fw_name);
167 release_firmware(adev->gmc.fw);
168 adev->gmc.fw = NULL;
169 }
170 return err;
171 }
172
173 /**
174 * gmc_v7_0_mc_load_microcode - load MC ucode into the hw
175 *
176 * @adev: amdgpu_device pointer
177 *
178 * Load the GDDR MC ucode into the hw (CIK).
179 * Returns 0 on success, error on failure.
180 */
gmc_v7_0_mc_load_microcode(struct amdgpu_device * adev)181 static int gmc_v7_0_mc_load_microcode(struct amdgpu_device *adev)
182 {
183 const struct mc_firmware_header_v1_0 *hdr;
184 const __le32 *fw_data = NULL;
185 const __le32 *io_mc_regs = NULL;
186 u32 running;
187 int i, ucode_size, regs_size;
188
189 if (!adev->gmc.fw)
190 return -EINVAL;
191
192 hdr = (const struct mc_firmware_header_v1_0 *)adev->gmc.fw->data;
193 amdgpu_ucode_print_mc_hdr(&hdr->header);
194
195 adev->gmc.fw_version = le32_to_cpu(hdr->header.ucode_version);
196 regs_size = le32_to_cpu(hdr->io_debug_size_bytes) / (4 * 2);
197 io_mc_regs = (const __le32 *)
198 (adev->gmc.fw->data + le32_to_cpu(hdr->io_debug_array_offset_bytes));
199 ucode_size = le32_to_cpu(hdr->header.ucode_size_bytes) / 4;
200 fw_data = (const __le32 *)
201 (adev->gmc.fw->data + le32_to_cpu(hdr->header.ucode_array_offset_bytes));
202
203 running = REG_GET_FIELD(RREG32(mmMC_SEQ_SUP_CNTL), MC_SEQ_SUP_CNTL, RUN);
204
205 if (running == 0) {
206 /* reset the engine and set to writable */
207 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000008);
208 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000010);
209
210 /* load mc io regs */
211 for (i = 0; i < regs_size; i++) {
212 WREG32(mmMC_SEQ_IO_DEBUG_INDEX, le32_to_cpup(io_mc_regs++));
213 WREG32(mmMC_SEQ_IO_DEBUG_DATA, le32_to_cpup(io_mc_regs++));
214 }
215 /* load the MC ucode */
216 for (i = 0; i < ucode_size; i++)
217 WREG32(mmMC_SEQ_SUP_PGM, le32_to_cpup(fw_data++));
218
219 /* put the engine back into the active state */
220 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000008);
221 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000004);
222 WREG32(mmMC_SEQ_SUP_CNTL, 0x00000001);
223
224 /* wait for training to complete */
225 for (i = 0; i < adev->usec_timeout; i++) {
226 if (REG_GET_FIELD(RREG32(mmMC_SEQ_TRAIN_WAKEUP_CNTL),
227 MC_SEQ_TRAIN_WAKEUP_CNTL, TRAIN_DONE_D0))
228 break;
229 udelay(1);
230 }
231 for (i = 0; i < adev->usec_timeout; i++) {
232 if (REG_GET_FIELD(RREG32(mmMC_SEQ_TRAIN_WAKEUP_CNTL),
233 MC_SEQ_TRAIN_WAKEUP_CNTL, TRAIN_DONE_D1))
234 break;
235 udelay(1);
236 }
237 }
238
239 return 0;
240 }
241
gmc_v7_0_vram_gtt_location(struct amdgpu_device * adev,struct amdgpu_gmc * mc)242 static void gmc_v7_0_vram_gtt_location(struct amdgpu_device *adev,
243 struct amdgpu_gmc *mc)
244 {
245 u64 base = RREG32(mmMC_VM_FB_LOCATION) & 0xFFFF;
246 base <<= 24;
247
248 amdgpu_gmc_vram_location(adev, mc, base);
249 amdgpu_gmc_gart_location(adev, mc);
250 }
251
252 /**
253 * gmc_v7_0_mc_program - program the GPU memory controller
254 *
255 * @adev: amdgpu_device pointer
256 *
257 * Set the location of vram, gart, and AGP in the GPU's
258 * physical address space (CIK).
259 */
gmc_v7_0_mc_program(struct amdgpu_device * adev)260 static void gmc_v7_0_mc_program(struct amdgpu_device *adev)
261 {
262 u32 tmp;
263 int i, j;
264
265 /* Initialize HDP */
266 for (i = 0, j = 0; i < 32; i++, j += 0x6) {
267 WREG32((0xb05 + j), 0x00000000);
268 WREG32((0xb06 + j), 0x00000000);
269 WREG32((0xb07 + j), 0x00000000);
270 WREG32((0xb08 + j), 0x00000000);
271 WREG32((0xb09 + j), 0x00000000);
272 }
273 WREG32(mmHDP_REG_COHERENCY_FLUSH_CNTL, 0);
274
275 if (gmc_v7_0_wait_for_idle((void *)adev)) {
276 dev_warn(adev->dev, "Wait for MC idle timedout !\n");
277 }
278 if (adev->mode_info.num_crtc) {
279 /* Lockout access through VGA aperture*/
280 tmp = RREG32(mmVGA_HDP_CONTROL);
281 tmp = REG_SET_FIELD(tmp, VGA_HDP_CONTROL, VGA_MEMORY_DISABLE, 1);
282 WREG32(mmVGA_HDP_CONTROL, tmp);
283
284 /* disable VGA render */
285 tmp = RREG32(mmVGA_RENDER_CONTROL);
286 tmp = REG_SET_FIELD(tmp, VGA_RENDER_CONTROL, VGA_VSTATUS_CNTL, 0);
287 WREG32(mmVGA_RENDER_CONTROL, tmp);
288 }
289 /* Update configuration */
290 WREG32(mmMC_VM_SYSTEM_APERTURE_LOW_ADDR,
291 adev->gmc.vram_start >> 12);
292 WREG32(mmMC_VM_SYSTEM_APERTURE_HIGH_ADDR,
293 adev->gmc.vram_end >> 12);
294 WREG32(mmMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR,
295 adev->vram_scratch.gpu_addr >> 12);
296 WREG32(mmMC_VM_AGP_BASE, 0);
297 WREG32(mmMC_VM_AGP_TOP, 0x0FFFFFFF);
298 WREG32(mmMC_VM_AGP_BOT, 0x0FFFFFFF);
299 if (gmc_v7_0_wait_for_idle((void *)adev)) {
300 dev_warn(adev->dev, "Wait for MC idle timedout !\n");
301 }
302
303 WREG32(mmBIF_FB_EN, BIF_FB_EN__FB_READ_EN_MASK | BIF_FB_EN__FB_WRITE_EN_MASK);
304
305 tmp = RREG32(mmHDP_MISC_CNTL);
306 tmp = REG_SET_FIELD(tmp, HDP_MISC_CNTL, FLUSH_INVALIDATE_CACHE, 0);
307 WREG32(mmHDP_MISC_CNTL, tmp);
308
309 tmp = RREG32(mmHDP_HOST_PATH_CNTL);
310 WREG32(mmHDP_HOST_PATH_CNTL, tmp);
311 }
312
313 /**
314 * gmc_v7_0_mc_init - initialize the memory controller driver params
315 *
316 * @adev: amdgpu_device pointer
317 *
318 * Look up the amount of vram, vram width, and decide how to place
319 * vram and gart within the GPU's physical address space (CIK).
320 * Returns 0 for success.
321 */
gmc_v7_0_mc_init(struct amdgpu_device * adev)322 static int gmc_v7_0_mc_init(struct amdgpu_device *adev)
323 {
324 int r;
325
326 adev->gmc.vram_width = amdgpu_atombios_get_vram_width(adev);
327 if (!adev->gmc.vram_width) {
328 u32 tmp;
329 int chansize, numchan;
330
331 /* Get VRAM informations */
332 tmp = RREG32(mmMC_ARB_RAMCFG);
333 if (REG_GET_FIELD(tmp, MC_ARB_RAMCFG, CHANSIZE)) {
334 chansize = 64;
335 } else {
336 chansize = 32;
337 }
338 tmp = RREG32(mmMC_SHARED_CHMAP);
339 switch (REG_GET_FIELD(tmp, MC_SHARED_CHMAP, NOOFCHAN)) {
340 case 0:
341 default:
342 numchan = 1;
343 break;
344 case 1:
345 numchan = 2;
346 break;
347 case 2:
348 numchan = 4;
349 break;
350 case 3:
351 numchan = 8;
352 break;
353 case 4:
354 numchan = 3;
355 break;
356 case 5:
357 numchan = 6;
358 break;
359 case 6:
360 numchan = 10;
361 break;
362 case 7:
363 numchan = 12;
364 break;
365 case 8:
366 numchan = 16;
367 break;
368 }
369 adev->gmc.vram_width = numchan * chansize;
370 }
371 /* size in MB on si */
372 adev->gmc.mc_vram_size = RREG32(mmCONFIG_MEMSIZE) * 1024ULL * 1024ULL;
373 adev->gmc.real_vram_size = RREG32(mmCONFIG_MEMSIZE) * 1024ULL * 1024ULL;
374
375 if (!(adev->flags & AMD_IS_APU)) {
376 r = amdgpu_device_resize_fb_bar(adev);
377 if (r)
378 return r;
379 }
380 adev->gmc.aper_base = pci_resource_start(adev->pdev, 0);
381 adev->gmc.aper_size = pci_resource_len(adev->pdev, 0);
382
383 #ifdef CONFIG_X86_64
384 if (adev->flags & AMD_IS_APU &&
385 adev->gmc.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 */
gmc_v7_0_flush_gpu_tlb_pasid(struct amdgpu_device * adev,uint16_t pasid,uint32_t flush_type,bool all_hub)433 static 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 */
gmc_v7_0_flush_gpu_tlb(struct amdgpu_device * adev,uint32_t vmid,uint32_t vmhub,uint32_t flush_type)474 static 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
gmc_v7_0_emit_flush_gpu_tlb(struct amdgpu_ring * ring,unsigned vmid,uint64_t pd_addr)481 static 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
gmc_v7_0_emit_pasid_mapping(struct amdgpu_ring * ring,unsigned vmid,unsigned pasid)498 static 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
gmc_v7_0_get_vm_pde(struct amdgpu_device * adev,int level,uint64_t * addr,uint64_t * flags)504 static 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
gmc_v7_0_get_vm_pte(struct amdgpu_device * adev,struct amdgpu_bo_va_mapping * mapping,uint64_t * flags)510 static 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_v8_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 */
gmc_v7_0_set_fault_enable_default(struct amdgpu_device * adev,bool value)524 static 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 */
gmc_v7_0_set_prt(struct amdgpu_device * adev,bool enable)551 static 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 */
gmc_v7_0_gart_enable(struct amdgpu_device * adev)613 static 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
gmc_v7_0_gart_init(struct amdgpu_device * adev)719 static 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 */
gmc_v7_0_gart_disable(struct amdgpu_device * adev)743 static 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 */
gmc_v7_0_vm_decode_fault(struct amdgpu_device * adev,u32 status,u32 addr,u32 mc_client,unsigned pasid)775 static 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
796 static 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
808 static 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
820 static 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
gmc_v7_0_enable_mc_ls(struct amdgpu_device * adev,bool enable)832 static 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
gmc_v7_0_enable_mc_mgcg(struct amdgpu_device * adev,bool enable)849 static 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
gmc_v7_0_enable_bif_mgls(struct amdgpu_device * adev,bool enable)866 static 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
gmc_v7_0_enable_hdp_mgcg(struct amdgpu_device * adev,bool enable)889 static 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
gmc_v7_0_enable_hdp_ls(struct amdgpu_device * adev,bool enable)905 static 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
gmc_v7_0_convert_vram_type(int mc_seq_vram_type)921 static 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
gmc_v7_0_early_init(void * handle)943 static 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
gmc_v7_0_late_init(void * handle)961 static 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
gmc_v7_0_get_vbios_fb_size(struct amdgpu_device * adev)971 static 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
gmc_v7_0_sw_init(void * handle)988 static 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
gmc_v7_0_sw_fini(void * handle)1079 static 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 amdgpu_gart_fini(adev);
1089 release_firmware(adev->gmc.fw);
1090 adev->gmc.fw = NULL;
1091
1092 return 0;
1093 }
1094
gmc_v7_0_hw_init(void * handle)1095 static int gmc_v7_0_hw_init(void *handle)
1096 {
1097 int r;
1098 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1099
1100 gmc_v7_0_init_golden_registers(adev);
1101
1102 gmc_v7_0_mc_program(adev);
1103
1104 if (!(adev->flags & AMD_IS_APU)) {
1105 r = gmc_v7_0_mc_load_microcode(adev);
1106 if (r) {
1107 DRM_ERROR("Failed to load MC firmware!\n");
1108 return r;
1109 }
1110 }
1111
1112 r = gmc_v7_0_gart_enable(adev);
1113 if (r)
1114 return r;
1115
1116 return r;
1117 }
1118
gmc_v7_0_hw_fini(void * handle)1119 static int gmc_v7_0_hw_fini(void *handle)
1120 {
1121 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1122
1123 amdgpu_irq_put(adev, &adev->gmc.vm_fault, 0);
1124 gmc_v7_0_gart_disable(adev);
1125
1126 return 0;
1127 }
1128
gmc_v7_0_suspend(void * handle)1129 static int gmc_v7_0_suspend(void *handle)
1130 {
1131 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1132
1133 gmc_v7_0_hw_fini(adev);
1134
1135 return 0;
1136 }
1137
gmc_v7_0_resume(void * handle)1138 static int gmc_v7_0_resume(void *handle)
1139 {
1140 int r;
1141 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1142
1143 r = gmc_v7_0_hw_init(adev);
1144 if (r)
1145 return r;
1146
1147 amdgpu_vmid_reset_all(adev);
1148
1149 return 0;
1150 }
1151
gmc_v7_0_is_idle(void * handle)1152 static bool gmc_v7_0_is_idle(void *handle)
1153 {
1154 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1155 u32 tmp = RREG32(mmSRBM_STATUS);
1156
1157 if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
1158 SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK | SRBM_STATUS__VMC_BUSY_MASK))
1159 return false;
1160
1161 return true;
1162 }
1163
gmc_v7_0_wait_for_idle(void * handle)1164 static int gmc_v7_0_wait_for_idle(void *handle)
1165 {
1166 unsigned i;
1167 u32 tmp;
1168 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1169
1170 for (i = 0; i < adev->usec_timeout; i++) {
1171 /* read MC_STATUS */
1172 tmp = RREG32(mmSRBM_STATUS) & (SRBM_STATUS__MCB_BUSY_MASK |
1173 SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
1174 SRBM_STATUS__MCC_BUSY_MASK |
1175 SRBM_STATUS__MCD_BUSY_MASK |
1176 SRBM_STATUS__VMC_BUSY_MASK);
1177 if (!tmp)
1178 return 0;
1179 udelay(1);
1180 }
1181 return -ETIMEDOUT;
1182
1183 }
1184
gmc_v7_0_soft_reset(void * handle)1185 static int gmc_v7_0_soft_reset(void *handle)
1186 {
1187 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1188 u32 srbm_soft_reset = 0;
1189 u32 tmp = RREG32(mmSRBM_STATUS);
1190
1191 if (tmp & SRBM_STATUS__VMC_BUSY_MASK)
1192 srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset,
1193 SRBM_SOFT_RESET, SOFT_RESET_VMC, 1);
1194
1195 if (tmp & (SRBM_STATUS__MCB_BUSY_MASK | SRBM_STATUS__MCB_NON_DISPLAY_BUSY_MASK |
1196 SRBM_STATUS__MCC_BUSY_MASK | SRBM_STATUS__MCD_BUSY_MASK)) {
1197 if (!(adev->flags & AMD_IS_APU))
1198 srbm_soft_reset = REG_SET_FIELD(srbm_soft_reset,
1199 SRBM_SOFT_RESET, SOFT_RESET_MC, 1);
1200 }
1201
1202 if (srbm_soft_reset) {
1203 gmc_v7_0_mc_stop(adev);
1204 if (gmc_v7_0_wait_for_idle((void *)adev)) {
1205 dev_warn(adev->dev, "Wait for GMC idle timed out !\n");
1206 }
1207
1208
1209 tmp = RREG32(mmSRBM_SOFT_RESET);
1210 tmp |= srbm_soft_reset;
1211 dev_info(adev->dev, "SRBM_SOFT_RESET=0x%08X\n", tmp);
1212 WREG32(mmSRBM_SOFT_RESET, tmp);
1213 tmp = RREG32(mmSRBM_SOFT_RESET);
1214
1215 udelay(50);
1216
1217 tmp &= ~srbm_soft_reset;
1218 WREG32(mmSRBM_SOFT_RESET, tmp);
1219 tmp = RREG32(mmSRBM_SOFT_RESET);
1220
1221 /* Wait a little for things to settle down */
1222 udelay(50);
1223
1224 gmc_v7_0_mc_resume(adev);
1225 udelay(50);
1226 }
1227
1228 return 0;
1229 }
1230
gmc_v7_0_vm_fault_interrupt_state(struct amdgpu_device * adev,struct amdgpu_irq_src * src,unsigned type,enum amdgpu_interrupt_state state)1231 static int gmc_v7_0_vm_fault_interrupt_state(struct amdgpu_device *adev,
1232 struct amdgpu_irq_src *src,
1233 unsigned type,
1234 enum amdgpu_interrupt_state state)
1235 {
1236 u32 tmp;
1237 u32 bits = (VM_CONTEXT1_CNTL__RANGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1238 VM_CONTEXT1_CNTL__DUMMY_PAGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1239 VM_CONTEXT1_CNTL__PDE0_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1240 VM_CONTEXT1_CNTL__VALID_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1241 VM_CONTEXT1_CNTL__READ_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
1242 VM_CONTEXT1_CNTL__WRITE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK);
1243
1244 switch (state) {
1245 case AMDGPU_IRQ_STATE_DISABLE:
1246 /* system context */
1247 tmp = RREG32(mmVM_CONTEXT0_CNTL);
1248 tmp &= ~bits;
1249 WREG32(mmVM_CONTEXT0_CNTL, tmp);
1250 /* VMs */
1251 tmp = RREG32(mmVM_CONTEXT1_CNTL);
1252 tmp &= ~bits;
1253 WREG32(mmVM_CONTEXT1_CNTL, tmp);
1254 break;
1255 case AMDGPU_IRQ_STATE_ENABLE:
1256 /* system context */
1257 tmp = RREG32(mmVM_CONTEXT0_CNTL);
1258 tmp |= bits;
1259 WREG32(mmVM_CONTEXT0_CNTL, tmp);
1260 /* VMs */
1261 tmp = RREG32(mmVM_CONTEXT1_CNTL);
1262 tmp |= bits;
1263 WREG32(mmVM_CONTEXT1_CNTL, tmp);
1264 break;
1265 default:
1266 break;
1267 }
1268
1269 return 0;
1270 }
1271
gmc_v7_0_process_interrupt(struct amdgpu_device * adev,struct amdgpu_irq_src * source,struct amdgpu_iv_entry * entry)1272 static int gmc_v7_0_process_interrupt(struct amdgpu_device *adev,
1273 struct amdgpu_irq_src *source,
1274 struct amdgpu_iv_entry *entry)
1275 {
1276 u32 addr, status, mc_client, vmid;
1277
1278 addr = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_ADDR);
1279 status = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_STATUS);
1280 mc_client = RREG32(mmVM_CONTEXT1_PROTECTION_FAULT_MCCLIENT);
1281 /* reset addr and status */
1282 WREG32_P(mmVM_CONTEXT1_CNTL2, 1, ~1);
1283
1284 if (!addr && !status)
1285 return 0;
1286
1287 if (amdgpu_vm_fault_stop == AMDGPU_VM_FAULT_STOP_FIRST)
1288 gmc_v7_0_set_fault_enable_default(adev, false);
1289
1290 if (printk_ratelimit()) {
1291 dev_err(adev->dev, "GPU fault detected: %d 0x%08x\n",
1292 entry->src_id, entry->src_data[0]);
1293 dev_err(adev->dev, " VM_CONTEXT1_PROTECTION_FAULT_ADDR 0x%08X\n",
1294 addr);
1295 dev_err(adev->dev, " VM_CONTEXT1_PROTECTION_FAULT_STATUS 0x%08X\n",
1296 status);
1297 gmc_v7_0_vm_decode_fault(adev, status, addr, mc_client,
1298 entry->pasid);
1299 }
1300
1301 vmid = REG_GET_FIELD(status, VM_CONTEXT1_PROTECTION_FAULT_STATUS,
1302 VMID);
1303 if (amdgpu_amdkfd_is_kfd_vmid(adev, vmid)
1304 && !atomic_read(&adev->gmc.vm_fault_info_updated)) {
1305 struct kfd_vm_fault_info *info = adev->gmc.vm_fault_info;
1306 u32 protections = REG_GET_FIELD(status,
1307 VM_CONTEXT1_PROTECTION_FAULT_STATUS,
1308 PROTECTIONS);
1309
1310 info->vmid = vmid;
1311 info->mc_id = REG_GET_FIELD(status,
1312 VM_CONTEXT1_PROTECTION_FAULT_STATUS,
1313 MEMORY_CLIENT_ID);
1314 info->status = status;
1315 info->page_addr = addr;
1316 info->prot_valid = protections & 0x7 ? true : false;
1317 info->prot_read = protections & 0x8 ? true : false;
1318 info->prot_write = protections & 0x10 ? true : false;
1319 info->prot_exec = protections & 0x20 ? true : false;
1320 mb();
1321 atomic_set(&adev->gmc.vm_fault_info_updated, 1);
1322 }
1323
1324 return 0;
1325 }
1326
gmc_v7_0_set_clockgating_state(void * handle,enum amd_clockgating_state state)1327 static int gmc_v7_0_set_clockgating_state(void *handle,
1328 enum amd_clockgating_state state)
1329 {
1330 bool gate = false;
1331 struct amdgpu_device *adev = (struct amdgpu_device *)handle;
1332
1333 if (state == AMD_CG_STATE_GATE)
1334 gate = true;
1335
1336 if (!(adev->flags & AMD_IS_APU)) {
1337 gmc_v7_0_enable_mc_mgcg(adev, gate);
1338 gmc_v7_0_enable_mc_ls(adev, gate);
1339 }
1340 gmc_v7_0_enable_bif_mgls(adev, gate);
1341 gmc_v7_0_enable_hdp_mgcg(adev, gate);
1342 gmc_v7_0_enable_hdp_ls(adev, gate);
1343
1344 return 0;
1345 }
1346
gmc_v7_0_set_powergating_state(void * handle,enum amd_powergating_state state)1347 static int gmc_v7_0_set_powergating_state(void *handle,
1348 enum amd_powergating_state state)
1349 {
1350 return 0;
1351 }
1352
1353 static const struct amd_ip_funcs gmc_v7_0_ip_funcs = {
1354 .name = "gmc_v7_0",
1355 .early_init = gmc_v7_0_early_init,
1356 .late_init = gmc_v7_0_late_init,
1357 .sw_init = gmc_v7_0_sw_init,
1358 .sw_fini = gmc_v7_0_sw_fini,
1359 .hw_init = gmc_v7_0_hw_init,
1360 .hw_fini = gmc_v7_0_hw_fini,
1361 .suspend = gmc_v7_0_suspend,
1362 .resume = gmc_v7_0_resume,
1363 .is_idle = gmc_v7_0_is_idle,
1364 .wait_for_idle = gmc_v7_0_wait_for_idle,
1365 .soft_reset = gmc_v7_0_soft_reset,
1366 .set_clockgating_state = gmc_v7_0_set_clockgating_state,
1367 .set_powergating_state = gmc_v7_0_set_powergating_state,
1368 };
1369
1370 static const struct amdgpu_gmc_funcs gmc_v7_0_gmc_funcs = {
1371 .flush_gpu_tlb = gmc_v7_0_flush_gpu_tlb,
1372 .flush_gpu_tlb_pasid = gmc_v7_0_flush_gpu_tlb_pasid,
1373 .emit_flush_gpu_tlb = gmc_v7_0_emit_flush_gpu_tlb,
1374 .emit_pasid_mapping = gmc_v7_0_emit_pasid_mapping,
1375 .set_prt = gmc_v7_0_set_prt,
1376 .get_vm_pde = gmc_v7_0_get_vm_pde,
1377 .get_vm_pte = gmc_v7_0_get_vm_pte,
1378 .get_vbios_fb_size = gmc_v7_0_get_vbios_fb_size,
1379 };
1380
1381 static const struct amdgpu_irq_src_funcs gmc_v7_0_irq_funcs = {
1382 .set = gmc_v7_0_vm_fault_interrupt_state,
1383 .process = gmc_v7_0_process_interrupt,
1384 };
1385
gmc_v7_0_set_gmc_funcs(struct amdgpu_device * adev)1386 static void gmc_v7_0_set_gmc_funcs(struct amdgpu_device *adev)
1387 {
1388 adev->gmc.gmc_funcs = &gmc_v7_0_gmc_funcs;
1389 }
1390
gmc_v7_0_set_irq_funcs(struct amdgpu_device * adev)1391 static void gmc_v7_0_set_irq_funcs(struct amdgpu_device *adev)
1392 {
1393 adev->gmc.vm_fault.num_types = 1;
1394 adev->gmc.vm_fault.funcs = &gmc_v7_0_irq_funcs;
1395 }
1396
1397 const struct amdgpu_ip_block_version gmc_v7_0_ip_block =
1398 {
1399 .type = AMD_IP_BLOCK_TYPE_GMC,
1400 .major = 7,
1401 .minor = 0,
1402 .rev = 0,
1403 .funcs = &gmc_v7_0_ip_funcs,
1404 };
1405
1406 const struct amdgpu_ip_block_version gmc_v7_4_ip_block =
1407 {
1408 .type = AMD_IP_BLOCK_TYPE_GMC,
1409 .major = 7,
1410 .minor = 4,
1411 .rev = 0,
1412 .funcs = &gmc_v7_0_ip_funcs,
1413 };
1414