1/*
2 * Copyright 2023 Advanced Micro Devices, Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 */
23#include <linux/firmware.h>
24#include <linux/pci.h>
25
26#include <drm/drm_cache.h>
27
28#include "amdgpu.h"
29#include "amdgpu_atomfirmware.h"
30#include "gmc_v12_0.h"
31#include "athub/athub_4_1_0_sh_mask.h"
32#include "athub/athub_4_1_0_offset.h"
33#include "oss/osssys_7_0_0_offset.h"
34#include "ivsrcid/vmc/irqsrcs_vmc_1_0.h"
35#include "soc24_enum.h"
36#include "soc24.h"
37#include "soc15d.h"
38#include "soc15_common.h"
39#include "nbif_v6_3_1.h"
40#include "gfxhub_v12_0.h"
41#include "mmhub_v4_1_0.h"
42#include "athub_v4_1_0.h"
43#include "umc_v8_14.h"
44
45static int gmc_v12_0_ecc_interrupt_state(struct amdgpu_device *adev,
46 struct amdgpu_irq_src *src,
47 unsigned type,
48 enum amdgpu_interrupt_state state)
49{
50 return 0;
51}
52
53static int gmc_v12_0_vm_fault_interrupt_state(struct amdgpu_device *adev,
54 struct amdgpu_irq_src *src, unsigned type,
55 enum amdgpu_interrupt_state state)
56{
57 switch (state) {
58 case AMDGPU_IRQ_STATE_DISABLE:
59 /* MM HUB */
60 amdgpu_gmc_set_vm_fault_masks(adev, AMDGPU_MMHUB0(0), enable: false);
61 /* GFX HUB */
62 /* This works because this interrupt is only
63 * enabled at init/resume and disabled in
64 * fini/suspend, so the overall state doesn't
65 * change over the course of suspend/resume.
66 */
67 if (!adev->in_s0ix)
68 amdgpu_gmc_set_vm_fault_masks(adev, AMDGPU_GFXHUB(0), enable: false);
69 break;
70 case AMDGPU_IRQ_STATE_ENABLE:
71 /* MM HUB */
72 amdgpu_gmc_set_vm_fault_masks(adev, AMDGPU_MMHUB0(0), enable: true);
73 /* GFX HUB */
74 /* This works because this interrupt is only
75 * enabled at init/resume and disabled in
76 * fini/suspend, so the overall state doesn't
77 * change over the course of suspend/resume.
78 */
79 if (!adev->in_s0ix)
80 amdgpu_gmc_set_vm_fault_masks(adev, AMDGPU_GFXHUB(0), enable: true);
81 break;
82 default:
83 break;
84 }
85
86 return 0;
87}
88
89static int gmc_v12_0_process_interrupt(struct amdgpu_device *adev,
90 struct amdgpu_irq_src *source,
91 struct amdgpu_iv_entry *entry)
92{
93 struct amdgpu_vmhub *hub;
94 bool retry_fault = !!(entry->src_data[1] &
95 AMDGPU_GMC9_FAULT_SOURCE_DATA_RETRY);
96 bool write_fault = !!(entry->src_data[1] &
97 AMDGPU_GMC9_FAULT_SOURCE_DATA_WRITE);
98 uint32_t status = 0;
99 u64 addr;
100
101 addr = (u64)entry->src_data[0] << 12;
102 addr |= ((u64)entry->src_data[1] & 0xf) << 44;
103
104 if (entry->client_id == SOC21_IH_CLIENTID_VMC)
105 hub = &adev->vmhub[AMDGPU_MMHUB0(0)];
106 else
107 hub = &adev->vmhub[AMDGPU_GFXHUB(0)];
108
109 if (retry_fault) {
110 /* Returning 1 here also prevents sending the IV to the KFD */
111
112 /* Process it only if it's the first fault for this address */
113 if (entry->ih != &adev->irq.ih_soft &&
114 amdgpu_gmc_filter_faults(adev, ih: entry->ih, addr, pasid: entry->pasid,
115 timestamp: entry->timestamp))
116 return 1;
117
118 /* Delegate it to a different ring if the hardware hasn't
119 * already done it.
120 */
121 if (entry->ih == &adev->irq.ih) {
122 amdgpu_irq_delegate(adev, entry, num_dw: 8);
123 return 1;
124 }
125
126 /* Try to handle the recoverable page faults by filling page
127 * tables
128 */
129 if (amdgpu_vm_handle_fault(adev, pasid: entry->pasid, vmid: 0, node_id: 0, addr,
130 ts: entry->timestamp, write_fault))
131 return 1;
132 }
133
134 if (!amdgpu_sriov_vf(adev)) {
135 /*
136 * Issue a dummy read to wait for the status register to
137 * be updated to avoid reading an incorrect value due to
138 * the new fast GRBM interface.
139 */
140 if (entry->vmid_src == AMDGPU_GFXHUB(0))
141 RREG32(hub->vm_l2_pro_fault_status);
142
143 status = RREG32(hub->vm_l2_pro_fault_status);
144 WREG32_P(hub->vm_l2_pro_fault_cntl, 1, ~1);
145
146 amdgpu_vm_update_fault_cache(adev, pasid: entry->pasid, addr, status,
147 vmhub: entry->vmid_src ? AMDGPU_MMHUB0(0) : AMDGPU_GFXHUB(0));
148 }
149
150 if (printk_ratelimit()) {
151 struct amdgpu_task_info *task_info;
152
153 dev_err(adev->dev,
154 "[%s] page fault (src_id:%u ring:%u vmid:%u pasid:%u)\n",
155 entry->vmid_src ? "mmhub" : "gfxhub",
156 entry->src_id, entry->ring_id, entry->vmid, entry->pasid);
157 task_info = amdgpu_vm_get_task_info_pasid(adev, pasid: entry->pasid);
158 if (task_info) {
159 amdgpu_vm_print_task_info(adev, task_info);
160 amdgpu_vm_put_task_info(task_info);
161 }
162
163 dev_err(adev->dev, " in page starting at address 0x%016llx from client %d\n",
164 addr, entry->client_id);
165
166 /* Only print L2 fault status if the status register could be read and
167 * contains useful information
168 */
169 if (status != 0)
170 hub->vmhub_funcs->print_l2_protection_fault_status(adev, status);
171 }
172
173 return 0;
174}
175
176static const struct amdgpu_irq_src_funcs gmc_v12_0_irq_funcs = {
177 .set = gmc_v12_0_vm_fault_interrupt_state,
178 .process = gmc_v12_0_process_interrupt,
179};
180
181static const struct amdgpu_irq_src_funcs gmc_v12_0_ecc_funcs = {
182 .set = gmc_v12_0_ecc_interrupt_state,
183 .process = amdgpu_umc_process_ecc_irq,
184};
185
186static void gmc_v12_0_set_irq_funcs(struct amdgpu_device *adev)
187{
188 adev->gmc.vm_fault.num_types = 1;
189 adev->gmc.vm_fault.funcs = &gmc_v12_0_irq_funcs;
190
191 if (!amdgpu_sriov_vf(adev)) {
192 adev->gmc.ecc_irq.num_types = 1;
193 adev->gmc.ecc_irq.funcs = &gmc_v12_0_ecc_funcs;
194 }
195}
196
197/**
198 * gmc_v12_0_use_invalidate_semaphore - judge whether to use semaphore
199 *
200 * @adev: amdgpu_device pointer
201 * @vmhub: vmhub type
202 *
203 */
204static bool gmc_v12_0_use_invalidate_semaphore(struct amdgpu_device *adev,
205 uint32_t vmhub)
206{
207 return ((vmhub == AMDGPU_MMHUB0(0)) &&
208 (!amdgpu_sriov_vf(adev)));
209}
210
211static bool gmc_v12_0_get_vmid_pasid_mapping_info(
212 struct amdgpu_device *adev,
213 uint8_t vmid, uint16_t *p_pasid)
214{
215 *p_pasid = RREG32(SOC15_REG_OFFSET(OSSSYS, 0, regIH_VMID_0_LUT) + vmid) & 0xffff;
216
217 return !!(*p_pasid);
218}
219
220/*
221 * GART
222 * VMID 0 is the physical GPU addresses as used by the kernel.
223 * VMIDs 1-15 are used for userspace clients and are handled
224 * by the amdgpu vm/hsa code.
225 */
226
227static void gmc_v12_0_flush_vm_hub(struct amdgpu_device *adev, uint32_t vmid,
228 unsigned int vmhub, uint32_t flush_type)
229{
230 bool use_semaphore = gmc_v12_0_use_invalidate_semaphore(adev, vmhub);
231 struct amdgpu_vmhub *hub = &adev->vmhub[vmhub];
232 u32 inv_req = hub->vmhub_funcs->get_invalidate_req(vmid, flush_type);
233 u32 tmp;
234 /* Use register 17 for GART */
235 const unsigned eng = 17;
236 unsigned int i;
237 unsigned char hub_ip = 0;
238
239 hub_ip = (vmhub == AMDGPU_GFXHUB(0)) ?
240 GC_HWIP : MMHUB_HWIP;
241
242 spin_lock(lock: &adev->gmc.invalidate_lock);
243 /*
244 * It may lose gpuvm invalidate acknowldege state across power-gating
245 * off cycle, add semaphore acquire before invalidation and semaphore
246 * release after invalidation to avoid entering power gated state
247 * to WA the Issue
248 */
249
250 /* TODO: It needs to continue working on debugging with semaphore for GFXHUB as well. */
251 if (use_semaphore) {
252 for (i = 0; i < adev->usec_timeout; i++) {
253 /* a read return value of 1 means semaphore acuqire */
254 tmp = RREG32_RLC_NO_KIQ(hub->vm_inv_eng0_sem +
255 hub->eng_distance * eng, hub_ip);
256 if (tmp & 0x1)
257 break;
258 udelay(usec: 1);
259 }
260
261 if (i >= adev->usec_timeout)
262 dev_err(adev->dev,
263 "Timeout waiting for sem acquire in VM flush!\n");
264 }
265
266 WREG32_RLC_NO_KIQ(hub->vm_inv_eng0_req + hub->eng_distance * eng, inv_req, hub_ip);
267
268 /* Wait for ACK with a delay.*/
269 for (i = 0; i < adev->usec_timeout; i++) {
270 tmp = RREG32_RLC_NO_KIQ(hub->vm_inv_eng0_ack +
271 hub->eng_distance * eng, hub_ip);
272 tmp &= 1 << vmid;
273 if (tmp)
274 break;
275
276 udelay(usec: 1);
277 }
278
279 /* TODO: It needs to continue working on debugging with semaphore for GFXHUB as well. */
280 if (use_semaphore)
281 /*
282 * add semaphore release after invalidation,
283 * write with 0 means semaphore release
284 */
285 WREG32_RLC_NO_KIQ(hub->vm_inv_eng0_sem +
286 hub->eng_distance * eng, 0, hub_ip);
287
288 /* Issue additional private vm invalidation to MMHUB */
289 if ((vmhub != AMDGPU_GFXHUB(0)) &&
290 (hub->vm_l2_bank_select_reserved_cid2) &&
291 !amdgpu_sriov_vf(adev)) {
292 inv_req = RREG32_NO_KIQ(hub->vm_l2_bank_select_reserved_cid2);
293 /* bit 25: RSERVED_CACHE_PRIVATE_INVALIDATION */
294 inv_req |= (1 << 25);
295 /* Issue private invalidation */
296 WREG32_NO_KIQ(hub->vm_l2_bank_select_reserved_cid2, inv_req);
297 /* Read back to ensure invalidation is done*/
298 RREG32_NO_KIQ(hub->vm_l2_bank_select_reserved_cid2);
299 }
300
301 spin_unlock(lock: &adev->gmc.invalidate_lock);
302
303 if (i < adev->usec_timeout)
304 return;
305
306 dev_err(adev->dev, "Timeout waiting for VM flush ACK!\n");
307}
308
309/**
310 * gmc_v12_0_flush_gpu_tlb - gart tlb flush callback
311 *
312 * @adev: amdgpu_device pointer
313 * @vmid: vm instance to flush
314 * @vmhub: which hub to flush
315 * @flush_type: the flush type
316 *
317 * Flush the TLB for the requested page table.
318 */
319static void gmc_v12_0_flush_gpu_tlb(struct amdgpu_device *adev, uint32_t vmid,
320 uint32_t vmhub, uint32_t flush_type)
321{
322 if ((vmhub == AMDGPU_GFXHUB(0)) && !adev->gfx.is_poweron)
323 return;
324
325 /* flush hdp cache */
326 amdgpu_device_flush_hdp(adev, NULL);
327
328 /* This is necessary for SRIOV as well as for GFXOFF to function
329 * properly under bare metal
330 */
331 if ((adev->gfx.kiq[0].ring.sched.ready || adev->mes.ring[0].sched.ready) &&
332 (amdgpu_sriov_runtime(adev) || !amdgpu_sriov_vf(adev))) {
333 struct amdgpu_vmhub *hub = &adev->vmhub[vmhub];
334 const unsigned eng = 17;
335 u32 inv_req = hub->vmhub_funcs->get_invalidate_req(vmid, flush_type);
336 u32 req = hub->vm_inv_eng0_req + hub->eng_distance * eng;
337 u32 ack = hub->vm_inv_eng0_ack + hub->eng_distance * eng;
338
339 amdgpu_gmc_fw_reg_write_reg_wait(adev, reg0: req, reg1: ack, ref: inv_req,
340 mask: 1 << vmid, GET_INST(GC, 0));
341 return;
342 }
343
344 gmc_v12_0_flush_vm_hub(adev, vmid, vmhub, flush_type: 0);
345 return;
346}
347
348/**
349 * gmc_v12_0_flush_gpu_tlb_pasid - tlb flush via pasid
350 *
351 * @adev: amdgpu_device pointer
352 * @pasid: pasid to be flush
353 * @flush_type: the flush type
354 * @all_hub: flush all hubs
355 * @inst: is used to select which instance of KIQ to use for the invalidation
356 *
357 * Flush the TLB for the requested pasid.
358 */
359static void gmc_v12_0_flush_gpu_tlb_pasid(struct amdgpu_device *adev,
360 uint16_t pasid, uint32_t flush_type,
361 bool all_hub, uint32_t inst)
362{
363 uint16_t queried;
364 int vmid, i;
365
366 if (adev->enable_uni_mes && adev->mes.ring[AMDGPU_MES_SCHED_PIPE].sched.ready &&
367 (adev->mes.sched_version & AMDGPU_MES_VERSION_MASK) >= 0x84) {
368 struct mes_inv_tlbs_pasid_input input = {0};
369 input.pasid = pasid;
370 input.flush_type = flush_type;
371 input.hub_id = AMDGPU_GFXHUB(0);
372 /* MES will invalidate all gc_hub for the device from master */
373 adev->mes.funcs->invalidate_tlbs_pasid(&adev->mes, &input);
374 if (all_hub) {
375 /* Only need to invalidate mm_hub now, gfx12 only support one mmhub */
376 input.hub_id = AMDGPU_MMHUB0(0);
377 adev->mes.funcs->invalidate_tlbs_pasid(&adev->mes, &input);
378 }
379 return;
380 }
381
382 for (vmid = 1; vmid < 16; vmid++) {
383 bool valid;
384
385 valid = gmc_v12_0_get_vmid_pasid_mapping_info(adev, vmid,
386 p_pasid: &queried);
387 if (!valid || queried != pasid)
388 continue;
389
390 if (all_hub) {
391 for_each_set_bit(i, adev->vmhubs_mask,
392 AMDGPU_MAX_VMHUBS)
393 gmc_v12_0_flush_gpu_tlb(adev, vmid, vmhub: i,
394 flush_type);
395 } else {
396 gmc_v12_0_flush_gpu_tlb(adev, vmid, AMDGPU_GFXHUB(0),
397 flush_type);
398 }
399 }
400}
401
402static uint64_t gmc_v12_0_emit_flush_gpu_tlb(struct amdgpu_ring *ring,
403 unsigned vmid, uint64_t pd_addr)
404{
405 bool use_semaphore = gmc_v12_0_use_invalidate_semaphore(adev: ring->adev, vmhub: ring->vm_hub);
406 struct amdgpu_vmhub *hub = &ring->adev->vmhub[ring->vm_hub];
407 uint32_t req = hub->vmhub_funcs->get_invalidate_req(vmid, 0);
408 unsigned eng = ring->vm_inv_eng;
409
410 /*
411 * It may lose gpuvm invalidate acknowldege state across power-gating
412 * off cycle, add semaphore acquire before invalidation and semaphore
413 * release after invalidation to avoid entering power gated state
414 * to WA the Issue
415 */
416
417 /* TODO: It needs to continue working on debugging with semaphore for GFXHUB as well. */
418 if (use_semaphore)
419 /* a read return value of 1 means semaphore acuqire */
420 amdgpu_ring_emit_reg_wait(ring,
421 hub->vm_inv_eng0_sem +
422 hub->eng_distance * eng, 0x1, 0x1);
423
424 amdgpu_ring_emit_wreg(ring, hub->ctx0_ptb_addr_lo32 +
425 (hub->ctx_addr_distance * vmid),
426 lower_32_bits(pd_addr));
427
428 amdgpu_ring_emit_wreg(ring, hub->ctx0_ptb_addr_hi32 +
429 (hub->ctx_addr_distance * vmid),
430 upper_32_bits(pd_addr));
431
432 amdgpu_ring_emit_reg_write_reg_wait(ring, hub->vm_inv_eng0_req +
433 hub->eng_distance * eng,
434 hub->vm_inv_eng0_ack +
435 hub->eng_distance * eng,
436 req, 1 << vmid);
437
438 /* TODO: It needs to continue working on debugging with semaphore for GFXHUB as well. */
439 if (use_semaphore)
440 /*
441 * add semaphore release after invalidation,
442 * write with 0 means semaphore release
443 */
444 amdgpu_ring_emit_wreg(ring, hub->vm_inv_eng0_sem +
445 hub->eng_distance * eng, 0);
446
447 return pd_addr;
448}
449
450static void gmc_v12_0_emit_pasid_mapping(struct amdgpu_ring *ring, unsigned vmid,
451 unsigned pasid)
452{
453 struct amdgpu_device *adev = ring->adev;
454 uint32_t reg;
455
456 if (ring->vm_hub == AMDGPU_GFXHUB(0))
457 reg = SOC15_REG_OFFSET(OSSSYS, 0, regIH_VMID_0_LUT) + vmid;
458 else
459 reg = SOC15_REG_OFFSET(OSSSYS, 0, regIH_VMID_0_LUT_MM) + vmid;
460
461 amdgpu_ring_emit_wreg(ring, reg, pasid);
462}
463
464/*
465 * PTE format:
466 * 63 P
467 * 62:59 reserved
468 * 58 D
469 * 57 G
470 * 56 T
471 * 55:54 M
472 * 53:52 SW
473 * 51:48 reserved for future
474 * 47:12 4k physical page base address
475 * 11:7 fragment
476 * 6 write
477 * 5 read
478 * 4 exe
479 * 3 Z
480 * 2 snooped
481 * 1 system
482 * 0 valid
483 *
484 * PDE format:
485 * 63 P
486 * 62:58 block fragment size
487 * 57 reserved
488 * 56 A
489 * 55:54 M
490 * 53:52 reserved
491 * 51:48 reserved for future
492 * 47:6 physical base address of PD or PTE
493 * 5:3 reserved
494 * 2 C
495 * 1 system
496 * 0 valid
497 */
498
499static void gmc_v12_0_get_vm_pde(struct amdgpu_device *adev, int level,
500 uint64_t *addr, uint64_t *flags)
501{
502 if (!(*flags & AMDGPU_PDE_PTE_GFX12) && !(*flags & AMDGPU_PTE_SYSTEM))
503 *addr = adev->vm_manager.vram_base_offset + *addr -
504 adev->gmc.vram_start;
505 BUG_ON(*addr & 0xFFFF00000000003FULL);
506
507 if (!adev->gmc.translate_further)
508 return;
509
510 if (level == AMDGPU_VM_PDB1) {
511 /* Set the block fragment size */
512 if (!(*flags & AMDGPU_PDE_PTE_GFX12))
513 *flags |= AMDGPU_PDE_BFS_GFX12(0x9);
514
515 } else if (level == AMDGPU_VM_PDB0) {
516 if (*flags & AMDGPU_PDE_PTE_GFX12)
517 *flags &= ~AMDGPU_PDE_PTE_GFX12;
518 }
519}
520
521static void gmc_v12_0_get_vm_pte(struct amdgpu_device *adev,
522 struct amdgpu_vm *vm,
523 struct amdgpu_bo *bo,
524 uint32_t vm_flags,
525 uint64_t *flags)
526{
527 if (vm_flags & AMDGPU_VM_PAGE_EXECUTABLE)
528 *flags |= AMDGPU_PTE_EXECUTABLE;
529 else
530 *flags &= ~AMDGPU_PTE_EXECUTABLE;
531
532 switch (vm_flags & AMDGPU_VM_MTYPE_MASK) {
533 case AMDGPU_VM_MTYPE_DEFAULT:
534 *flags = AMDGPU_PTE_MTYPE_GFX12(*flags, MTYPE_NC);
535 break;
536 case AMDGPU_VM_MTYPE_NC:
537 default:
538 *flags = AMDGPU_PTE_MTYPE_GFX12(*flags, MTYPE_NC);
539 break;
540 case AMDGPU_VM_MTYPE_UC:
541 *flags = AMDGPU_PTE_MTYPE_GFX12(*flags, MTYPE_UC);
542 break;
543 }
544
545 if (vm_flags & AMDGPU_VM_PAGE_NOALLOC)
546 *flags |= AMDGPU_PTE_NOALLOC;
547 else
548 *flags &= ~AMDGPU_PTE_NOALLOC;
549
550 if (vm_flags & AMDGPU_VM_PAGE_PRT) {
551 *flags |= AMDGPU_PTE_PRT_GFX12;
552 *flags |= AMDGPU_PTE_SNOOPED;
553 *flags |= AMDGPU_PTE_SYSTEM;
554 *flags |= AMDGPU_PTE_IS_PTE;
555 *flags &= ~AMDGPU_PTE_VALID;
556 }
557
558 if (bo && bo->flags & AMDGPU_GEM_CREATE_GFX12_DCC)
559 *flags |= AMDGPU_PTE_DCC;
560
561 if (bo && bo->flags & AMDGPU_GEM_CREATE_UNCACHED)
562 *flags = AMDGPU_PTE_MTYPE_GFX12(*flags, MTYPE_UC);
563}
564
565static unsigned gmc_v12_0_get_vbios_fb_size(struct amdgpu_device *adev)
566{
567 return 0;
568}
569
570static unsigned int gmc_v12_0_get_dcc_alignment(struct amdgpu_device *adev)
571{
572 unsigned int max_tex_channel_caches, alignment;
573
574 if (amdgpu_ip_version(adev, ip: GC_HWIP, inst: 0) != IP_VERSION(12, 0, 0) &&
575 amdgpu_ip_version(adev, ip: GC_HWIP, inst: 0) != IP_VERSION(12, 0, 1))
576 return 0;
577
578 max_tex_channel_caches = adev->gfx.config.max_texture_channel_caches;
579 if (is_power_of_2(n: max_tex_channel_caches))
580 alignment = (unsigned int)(max_tex_channel_caches / SZ_4);
581 else
582 alignment = roundup_pow_of_two(max_tex_channel_caches);
583
584 return (unsigned int)(alignment * max_tex_channel_caches * SZ_1K);
585}
586
587static const struct amdgpu_gmc_funcs gmc_v12_0_gmc_funcs = {
588 .flush_gpu_tlb = gmc_v12_0_flush_gpu_tlb,
589 .flush_gpu_tlb_pasid = gmc_v12_0_flush_gpu_tlb_pasid,
590 .emit_flush_gpu_tlb = gmc_v12_0_emit_flush_gpu_tlb,
591 .emit_pasid_mapping = gmc_v12_0_emit_pasid_mapping,
592 .get_vm_pde = gmc_v12_0_get_vm_pde,
593 .get_vm_pte = gmc_v12_0_get_vm_pte,
594 .get_vbios_fb_size = gmc_v12_0_get_vbios_fb_size,
595 .get_dcc_alignment = gmc_v12_0_get_dcc_alignment,
596};
597
598static void gmc_v12_0_set_gmc_funcs(struct amdgpu_device *adev)
599{
600 adev->gmc.gmc_funcs = &gmc_v12_0_gmc_funcs;
601}
602
603static void gmc_v12_0_set_umc_funcs(struct amdgpu_device *adev)
604{
605 switch (amdgpu_ip_version(adev, ip: UMC_HWIP, inst: 0)) {
606 case IP_VERSION(8, 14, 0):
607 adev->umc.channel_inst_num = UMC_V8_14_CHANNEL_INSTANCE_NUM;
608 adev->umc.umc_inst_num = UMC_V8_14_UMC_INSTANCE_NUM(adev);
609 adev->umc.node_inst_num = 0;
610 adev->umc.max_ras_err_cnt_per_query = UMC_V8_14_TOTAL_CHANNEL_NUM(adev);
611 adev->umc.channel_offs = UMC_V8_14_PER_CHANNEL_OFFSET;
612 adev->umc.ras = &umc_v8_14_ras;
613 break;
614 default:
615 break;
616 }
617}
618
619
620static void gmc_v12_0_set_mmhub_funcs(struct amdgpu_device *adev)
621{
622 switch (amdgpu_ip_version(adev, ip: MMHUB_HWIP, inst: 0)) {
623 case IP_VERSION(4, 1, 0):
624 adev->mmhub.funcs = &mmhub_v4_1_0_funcs;
625 break;
626 default:
627 break;
628 }
629}
630
631static void gmc_v12_0_set_gfxhub_funcs(struct amdgpu_device *adev)
632{
633 switch (amdgpu_ip_version(adev, ip: GC_HWIP, inst: 0)) {
634 case IP_VERSION(12, 0, 0):
635 case IP_VERSION(12, 0, 1):
636 adev->gfxhub.funcs = &gfxhub_v12_0_funcs;
637 break;
638 default:
639 break;
640 }
641}
642
643static int gmc_v12_0_early_init(struct amdgpu_ip_block *ip_block)
644{
645 struct amdgpu_device *adev = ip_block->adev;
646
647 gmc_v12_0_set_gfxhub_funcs(adev);
648 gmc_v12_0_set_mmhub_funcs(adev);
649 gmc_v12_0_set_gmc_funcs(adev);
650 gmc_v12_0_set_irq_funcs(adev);
651 gmc_v12_0_set_umc_funcs(adev);
652
653 adev->gmc.shared_aperture_start = 0x2000000000000000ULL;
654 adev->gmc.shared_aperture_end =
655 adev->gmc.shared_aperture_start + (4ULL << 30) - 1;
656 adev->gmc.private_aperture_start = 0x1000000000000000ULL;
657 adev->gmc.private_aperture_end =
658 adev->gmc.private_aperture_start + (4ULL << 30) - 1;
659
660 return 0;
661}
662
663static int gmc_v12_0_late_init(struct amdgpu_ip_block *ip_block)
664{
665 struct amdgpu_device *adev = ip_block->adev;
666 int r;
667
668 r = amdgpu_gmc_allocate_vm_inv_eng(adev);
669 if (r)
670 return r;
671
672 r = amdgpu_gmc_ras_late_init(adev);
673 if (r)
674 return r;
675
676 return amdgpu_irq_get(adev, src: &adev->gmc.vm_fault, type: 0);
677}
678
679static void gmc_v12_0_vram_gtt_location(struct amdgpu_device *adev,
680 struct amdgpu_gmc *mc)
681{
682 u64 base = 0;
683
684 base = adev->mmhub.funcs->get_fb_location(adev);
685
686 amdgpu_gmc_set_agp_default(adev, mc);
687 amdgpu_gmc_vram_location(adev, mc: &adev->gmc, base);
688 amdgpu_gmc_gart_location(adev, mc, gart_placement: AMDGPU_GART_PLACEMENT_LOW);
689 if (!amdgpu_sriov_vf(adev) && (amdgpu_agp == 1))
690 amdgpu_gmc_agp_location(adev, mc);
691
692 /* base offset of vram pages */
693 if (amdgpu_sriov_vf(adev))
694 adev->vm_manager.vram_base_offset = 0;
695 else
696 adev->vm_manager.vram_base_offset = adev->mmhub.funcs->get_mc_fb_offset(adev);
697}
698
699/**
700 * gmc_v12_0_mc_init - initialize the memory controller driver params
701 *
702 * @adev: amdgpu_device pointer
703 *
704 * Look up the amount of vram, vram width, and decide how to place
705 * vram and gart within the GPU's physical address space.
706 * Returns 0 for success.
707 */
708static int gmc_v12_0_mc_init(struct amdgpu_device *adev)
709{
710 int r;
711
712 /* size in MB on si */
713 adev->gmc.mc_vram_size =
714 adev->nbio.funcs->get_memsize(adev) * 1024ULL * 1024ULL;
715 adev->gmc.real_vram_size = adev->gmc.mc_vram_size;
716
717 if (!(adev->flags & AMD_IS_APU)) {
718 r = amdgpu_device_resize_fb_bar(adev);
719 if (r)
720 return r;
721 }
722
723 adev->gmc.aper_base = pci_resource_start(adev->pdev, 0);
724 adev->gmc.aper_size = pci_resource_len(adev->pdev, 0);
725
726#ifdef CONFIG_X86_64
727 if ((adev->flags & AMD_IS_APU) && !amdgpu_passthrough(adev)) {
728 adev->gmc.aper_base = adev->mmhub.funcs->get_mc_fb_offset(adev);
729 adev->gmc.aper_size = adev->gmc.real_vram_size;
730 }
731#endif
732 /* In case the PCI BAR is larger than the actual amount of vram */
733 adev->gmc.visible_vram_size = adev->gmc.aper_size;
734 if (adev->gmc.visible_vram_size > adev->gmc.real_vram_size)
735 adev->gmc.visible_vram_size = adev->gmc.real_vram_size;
736
737 /* set the gart size */
738 if (amdgpu_gart_size == -1) {
739 adev->gmc.gart_size = 512ULL << 20;
740 } else
741 adev->gmc.gart_size = (u64)amdgpu_gart_size << 20;
742
743 gmc_v12_0_vram_gtt_location(adev, mc: &adev->gmc);
744
745 return 0;
746}
747
748static int gmc_v12_0_gart_init(struct amdgpu_device *adev)
749{
750 int r;
751
752 if (adev->gart.bo) {
753 WARN(1, "PCIE GART already initialized\n");
754 return 0;
755 }
756
757 /* Initialize common gart structure */
758 r = amdgpu_gart_init(adev);
759 if (r)
760 return r;
761
762 adev->gart.table_size = adev->gart.num_gpu_pages * 8;
763 adev->gart.gart_pte_flags = AMDGPU_PTE_MTYPE_GFX12(0ULL, MTYPE_UC) |
764 AMDGPU_PTE_EXECUTABLE |
765 AMDGPU_PTE_IS_PTE;
766
767 return amdgpu_gart_table_vram_alloc(adev);
768}
769
770static int gmc_v12_0_sw_init(struct amdgpu_ip_block *ip_block)
771{
772 int r, vram_width = 0, vram_type = 0, vram_vendor = 0;
773 struct amdgpu_device *adev = ip_block->adev;
774
775 adev->mmhub.funcs->init(adev);
776
777 adev->gfxhub.funcs->init(adev);
778
779 spin_lock_init(&adev->gmc.invalidate_lock);
780
781 r = amdgpu_atomfirmware_get_vram_info(adev,
782 vram_width: &vram_width, vram_type: &vram_type, vram_vendor: &vram_vendor);
783 adev->gmc.vram_width = vram_width;
784
785 adev->gmc.vram_type = vram_type;
786 adev->gmc.vram_vendor = vram_vendor;
787
788 switch (amdgpu_ip_version(adev, ip: GC_HWIP, inst: 0)) {
789 case IP_VERSION(12, 0, 0):
790 case IP_VERSION(12, 0, 1):
791 set_bit(AMDGPU_GFXHUB(0), addr: adev->vmhubs_mask);
792 set_bit(AMDGPU_MMHUB0(0), addr: adev->vmhubs_mask);
793 /*
794 * To fulfill 4-level page support,
795 * vm size is 256TB (48bit), maximum size,
796 * block size 512 (9bit)
797 */
798 amdgpu_vm_adjust_size(adev, min_vm_size: 256 * 1024, fragment_size_default: 9, max_level: 3, max_bits: 48);
799 break;
800 default:
801 break;
802 }
803
804 /* This interrupt is VMC page fault.*/
805 r = amdgpu_irq_add_id(adev, client_id: SOC21_IH_CLIENTID_VMC,
806 VMC_1_0__SRCID__VM_FAULT,
807 source: &adev->gmc.vm_fault);
808
809 if (r)
810 return r;
811
812 r = amdgpu_irq_add_id(adev, client_id: SOC21_IH_CLIENTID_GFX,
813 UTCL2_1_0__SRCID__FAULT,
814 source: &adev->gmc.vm_fault);
815 if (r)
816 return r;
817
818 if (!amdgpu_sriov_vf(adev)) {
819 /* interrupt sent to DF. */
820 r = amdgpu_irq_add_id(adev, client_id: SOC21_IH_CLIENTID_DF, src_id: 0,
821 source: &adev->gmc.ecc_irq);
822 if (r)
823 return r;
824 }
825
826 /*
827 * Set the internal MC address mask This is the max address of the GPU's
828 * internal address space.
829 */
830 adev->gmc.mc_mask = 0xffffffffffffULL; /* 48 bit MC */
831
832 r = dma_set_mask_and_coherent(dev: adev->dev, DMA_BIT_MASK(44));
833 if (r) {
834 printk(KERN_WARNING "amdgpu: No suitable DMA available.\n");
835 return r;
836 }
837
838 adev->need_swiotlb = drm_need_swiotlb(dma_bits: 44);
839
840 r = gmc_v12_0_mc_init(adev);
841 if (r)
842 return r;
843
844 amdgpu_gmc_get_vbios_allocations(adev);
845
846 /* Memory manager */
847 r = amdgpu_bo_init(adev);
848 if (r)
849 return r;
850
851 r = gmc_v12_0_gart_init(adev);
852 if (r)
853 return r;
854
855 /*
856 * number of VMs
857 * VMID 0 is reserved for System
858 * amdgpu graphics/compute will use VMIDs 1-7
859 * amdkfd will use VMIDs 8-15
860 */
861 adev->vm_manager.first_kfd_vmid = adev->gfx.disable_kq ? 1 : 8;
862
863 amdgpu_vm_manager_init(adev);
864
865 r = amdgpu_gmc_ras_sw_init(adev);
866 if (r)
867 return r;
868
869 return 0;
870}
871
872/**
873 * gmc_v12_0_gart_fini - vm fini callback
874 *
875 * @adev: amdgpu_device pointer
876 *
877 * Tears down the driver GART/VM setup (CIK).
878 */
879static void gmc_v12_0_gart_fini(struct amdgpu_device *adev)
880{
881 amdgpu_gart_table_vram_free(adev);
882}
883
884static int gmc_v12_0_sw_fini(struct amdgpu_ip_block *ip_block)
885{
886 struct amdgpu_device *adev = ip_block->adev;
887
888 amdgpu_vm_manager_fini(adev);
889 gmc_v12_0_gart_fini(adev);
890 amdgpu_gem_force_release(adev);
891 amdgpu_bo_fini(adev);
892
893 return 0;
894}
895
896static void gmc_v12_0_init_golden_registers(struct amdgpu_device *adev)
897{
898}
899
900/**
901 * gmc_v12_0_gart_enable - gart enable
902 *
903 * @adev: amdgpu_device pointer
904 */
905static int gmc_v12_0_gart_enable(struct amdgpu_device *adev)
906{
907 int r;
908 bool value;
909
910 if (adev->gart.bo == NULL) {
911 dev_err(adev->dev, "No VRAM object for PCIE GART.\n");
912 return -EINVAL;
913 }
914
915 amdgpu_gtt_mgr_recover(mgr: &adev->mman.gtt_mgr);
916
917 r = adev->mmhub.funcs->gart_enable(adev);
918 if (r)
919 return r;
920
921 /* Flush HDP after it is initialized */
922 amdgpu_device_flush_hdp(adev, NULL);
923
924 value = amdgpu_vm_fault_stop != AMDGPU_VM_FAULT_STOP_ALWAYS;
925
926 adev->mmhub.funcs->set_fault_enable_default(adev, value);
927 gmc_v12_0_flush_gpu_tlb(adev, vmid: 0, AMDGPU_MMHUB0(0), flush_type: 0);
928
929 dev_info(adev->dev, "PCIE GART of %uM enabled (table at 0x%016llX).\n",
930 (unsigned)(adev->gmc.gart_size >> 20),
931 (unsigned long long)amdgpu_bo_gpu_offset(adev->gart.bo));
932
933 return 0;
934}
935
936static int gmc_v12_0_hw_init(struct amdgpu_ip_block *ip_block)
937{
938 int r;
939 struct amdgpu_device *adev = ip_block->adev;
940
941 /* The sequence of these two function calls matters.*/
942 gmc_v12_0_init_golden_registers(adev);
943
944 r = gmc_v12_0_gart_enable(adev);
945 if (r)
946 return r;
947
948 if (adev->umc.funcs && adev->umc.funcs->init_registers)
949 adev->umc.funcs->init_registers(adev);
950
951 return 0;
952}
953
954/**
955 * gmc_v12_0_gart_disable - gart disable
956 *
957 * @adev: amdgpu_device pointer
958 *
959 * This disables all VM page table.
960 */
961static void gmc_v12_0_gart_disable(struct amdgpu_device *adev)
962{
963 adev->mmhub.funcs->gart_disable(adev);
964}
965
966static int gmc_v12_0_hw_fini(struct amdgpu_ip_block *ip_block)
967{
968 struct amdgpu_device *adev = ip_block->adev;
969
970 if (amdgpu_sriov_vf(adev)) {
971 /* full access mode, so don't touch any GMC register */
972 DRM_DEBUG("For SRIOV client, shouldn't do anything.\n");
973 return 0;
974 }
975
976 amdgpu_irq_put(adev, src: &adev->gmc.vm_fault, type: 0);
977
978 if (adev->gmc.ecc_irq.funcs &&
979 amdgpu_ras_is_supported(adev, block: AMDGPU_RAS_BLOCK__UMC))
980 amdgpu_irq_put(adev, src: &adev->gmc.ecc_irq, type: 0);
981
982 gmc_v12_0_gart_disable(adev);
983
984 return 0;
985}
986
987static int gmc_v12_0_suspend(struct amdgpu_ip_block *ip_block)
988{
989 gmc_v12_0_hw_fini(ip_block);
990
991 return 0;
992}
993
994static int gmc_v12_0_resume(struct amdgpu_ip_block *ip_block)
995{
996 int r;
997
998 r = gmc_v12_0_hw_init(ip_block);
999 if (r)
1000 return r;
1001
1002 amdgpu_vmid_reset_all(adev: ip_block->adev);
1003
1004 return 0;
1005}
1006
1007static bool gmc_v12_0_is_idle(struct amdgpu_ip_block *ip_block)
1008{
1009 /* MC is always ready in GMC v11.*/
1010 return true;
1011}
1012
1013static int gmc_v12_0_wait_for_idle(struct amdgpu_ip_block *ip_block)
1014{
1015 /* There is no need to wait for MC idle in GMC v11.*/
1016 return 0;
1017}
1018
1019static int gmc_v12_0_set_clockgating_state(struct amdgpu_ip_block *ip_block,
1020 enum amd_clockgating_state state)
1021{
1022 int r;
1023 struct amdgpu_device *adev = ip_block->adev;
1024
1025 r = adev->mmhub.funcs->set_clockgating(adev, state);
1026 if (r)
1027 return r;
1028
1029 return athub_v4_1_0_set_clockgating(adev, state);
1030}
1031
1032static void gmc_v12_0_get_clockgating_state(struct amdgpu_ip_block *ip_block, u64 *flags)
1033{
1034 struct amdgpu_device *adev = ip_block->adev;
1035
1036 adev->mmhub.funcs->get_clockgating(adev, flags);
1037
1038 athub_v4_1_0_get_clockgating(adev, flags);
1039}
1040
1041static int gmc_v12_0_set_powergating_state(struct amdgpu_ip_block *ip_block,
1042 enum amd_powergating_state state)
1043{
1044 return 0;
1045}
1046
1047const struct amd_ip_funcs gmc_v12_0_ip_funcs = {
1048 .name = "gmc_v12_0",
1049 .early_init = gmc_v12_0_early_init,
1050 .sw_init = gmc_v12_0_sw_init,
1051 .hw_init = gmc_v12_0_hw_init,
1052 .late_init = gmc_v12_0_late_init,
1053 .sw_fini = gmc_v12_0_sw_fini,
1054 .hw_fini = gmc_v12_0_hw_fini,
1055 .suspend = gmc_v12_0_suspend,
1056 .resume = gmc_v12_0_resume,
1057 .is_idle = gmc_v12_0_is_idle,
1058 .wait_for_idle = gmc_v12_0_wait_for_idle,
1059 .set_clockgating_state = gmc_v12_0_set_clockgating_state,
1060 .set_powergating_state = gmc_v12_0_set_powergating_state,
1061 .get_clockgating_state = gmc_v12_0_get_clockgating_state,
1062};
1063
1064const struct amdgpu_ip_block_version gmc_v12_0_ip_block = {
1065 .type = AMD_IP_BLOCK_TYPE_GMC,
1066 .major = 12,
1067 .minor = 0,
1068 .rev = 0,
1069 .funcs = &gmc_v12_0_ip_funcs,
1070};
1071

source code of linux/drivers/gpu/drm/amd/amdgpu/gmc_v12_0.c