1/*
2 * Copyright 2022 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 "amdgpu.h"
25#include "mmhub_v3_0_1.h"
26
27#include "mmhub/mmhub_3_0_1_offset.h"
28#include "mmhub/mmhub_3_0_1_sh_mask.h"
29#include "navi10_enum.h"
30
31#include "soc15_common.h"
32
33#define regMMVM_L2_CNTL3_DEFAULT 0x80100007
34#define regMMVM_L2_CNTL4_DEFAULT 0x000000c1
35#define regMMVM_L2_CNTL5_DEFAULT 0x00003fe0
36
37static const char *mmhub_client_ids_v3_0_1[][2] = {
38 [0][0] = "VMC",
39 [4][0] = "DCEDMC",
40 [5][0] = "DCEVGA",
41 [6][0] = "MP0",
42 [7][0] = "MP1",
43 [8][0] = "MPIO",
44 [16][0] = "HDP",
45 [17][0] = "LSDMA",
46 [18][0] = "JPEG",
47 [19][0] = "VCNU0",
48 [21][0] = "VSCH",
49 [22][0] = "VCNU1",
50 [23][0] = "VCN1",
51 [32+20][0] = "VCN0",
52 [2][1] = "DBGUNBIO",
53 [3][1] = "DCEDWB",
54 [4][1] = "DCEDMC",
55 [5][1] = "DCEVGA",
56 [6][1] = "MP0",
57 [7][1] = "MP1",
58 [8][1] = "MPIO",
59 [10][1] = "DBGU0",
60 [11][1] = "DBGU1",
61 [12][1] = "DBGU2",
62 [13][1] = "DBGU3",
63 [14][1] = "XDP",
64 [15][1] = "OSSSYS",
65 [16][1] = "HDP",
66 [17][1] = "LSDMA",
67 [18][1] = "JPEG",
68 [19][1] = "VCNU0",
69 [20][1] = "VCN0",
70 [21][1] = "VSCH",
71 [22][1] = "VCNU1",
72 [23][1] = "VCN1",
73};
74
75static uint32_t mmhub_v3_0_1_get_invalidate_req(unsigned int vmid,
76 uint32_t flush_type)
77{
78 u32 req = 0;
79
80 /* invalidate using legacy mode on vmid*/
81 req = REG_SET_FIELD(req, MMVM_INVALIDATE_ENG0_REQ,
82 PER_VMID_INVALIDATE_REQ, 1 << vmid);
83 req = REG_SET_FIELD(req, MMVM_INVALIDATE_ENG0_REQ, FLUSH_TYPE, flush_type);
84 req = REG_SET_FIELD(req, MMVM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PTES, 1);
85 req = REG_SET_FIELD(req, MMVM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PDE0, 1);
86 req = REG_SET_FIELD(req, MMVM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PDE1, 1);
87 req = REG_SET_FIELD(req, MMVM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PDE2, 1);
88 req = REG_SET_FIELD(req, MMVM_INVALIDATE_ENG0_REQ, INVALIDATE_L1_PTES, 1);
89 req = REG_SET_FIELD(req, MMVM_INVALIDATE_ENG0_REQ,
90 CLEAR_PROTECTION_FAULT_STATUS_ADDR, 0);
91
92 return req;
93}
94
95static void
96mmhub_v3_0_1_print_l2_protection_fault_status(struct amdgpu_device *adev,
97 uint32_t status)
98{
99 uint32_t cid, rw;
100 const char *mmhub_cid = NULL;
101
102 cid = REG_GET_FIELD(status,
103 MMVM_L2_PROTECTION_FAULT_STATUS, CID);
104 rw = REG_GET_FIELD(status,
105 MMVM_L2_PROTECTION_FAULT_STATUS, RW);
106
107 dev_err(adev->dev,
108 "MMVM_L2_PROTECTION_FAULT_STATUS:0x%08X\n",
109 status);
110
111 switch (amdgpu_ip_version(adev, ip: MMHUB_HWIP, inst: 0)) {
112 case IP_VERSION(3, 0, 1):
113 mmhub_cid = mmhub_client_ids_v3_0_1[cid][rw];
114 break;
115 default:
116 mmhub_cid = NULL;
117 break;
118 }
119
120 dev_err(adev->dev, "\t Faulty UTCL2 client ID: %s (0x%x)\n",
121 mmhub_cid ? mmhub_cid : "unknown", cid);
122 dev_err(adev->dev, "\t MORE_FAULTS: 0x%lx\n",
123 REG_GET_FIELD(status,
124 MMVM_L2_PROTECTION_FAULT_STATUS, MORE_FAULTS));
125 dev_err(adev->dev, "\t WALKER_ERROR: 0x%lx\n",
126 REG_GET_FIELD(status,
127 MMVM_L2_PROTECTION_FAULT_STATUS, WALKER_ERROR));
128 dev_err(adev->dev, "\t PERMISSION_FAULTS: 0x%lx\n",
129 REG_GET_FIELD(status,
130 MMVM_L2_PROTECTION_FAULT_STATUS, PERMISSION_FAULTS));
131 dev_err(adev->dev, "\t MAPPING_ERROR: 0x%lx\n",
132 REG_GET_FIELD(status,
133 MMVM_L2_PROTECTION_FAULT_STATUS, MAPPING_ERROR));
134 dev_err(adev->dev, "\t RW: 0x%x\n", rw);
135}
136
137static void mmhub_v3_0_1_setup_vm_pt_regs(struct amdgpu_device *adev,
138 uint32_t vmid,
139 uint64_t page_table_base)
140{
141 struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_MMHUB0(0)];
142
143 WREG32_SOC15_OFFSET(MMHUB, 0, regMMVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32,
144 hub->ctx_addr_distance * vmid,
145 lower_32_bits(page_table_base));
146
147 WREG32_SOC15_OFFSET(MMHUB, 0, regMMVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32,
148 hub->ctx_addr_distance * vmid,
149 upper_32_bits(page_table_base));
150}
151
152static void mmhub_v3_0_1_init_gart_aperture_regs(struct amdgpu_device *adev)
153{
154 uint64_t pt_base = amdgpu_gmc_pd_addr(bo: adev->gart.bo);
155
156 mmhub_v3_0_1_setup_vm_pt_regs(adev, vmid: 0, page_table_base: pt_base);
157
158 WREG32_SOC15(MMHUB, 0, regMMVM_CONTEXT0_PAGE_TABLE_START_ADDR_LO32,
159 (u32)(adev->gmc.gart_start >> 12));
160 WREG32_SOC15(MMHUB, 0, regMMVM_CONTEXT0_PAGE_TABLE_START_ADDR_HI32,
161 (u32)(adev->gmc.gart_start >> 44));
162
163 WREG32_SOC15(MMHUB, 0, regMMVM_CONTEXT0_PAGE_TABLE_END_ADDR_LO32,
164 (u32)(adev->gmc.gart_end >> 12));
165 WREG32_SOC15(MMHUB, 0, regMMVM_CONTEXT0_PAGE_TABLE_END_ADDR_HI32,
166 (u32)(adev->gmc.gart_end >> 44));
167}
168
169static void mmhub_v3_0_1_init_system_aperture_regs(struct amdgpu_device *adev)
170{
171 uint64_t value;
172 uint32_t tmp;
173
174 /* Program the AGP BAR */
175 WREG32_SOC15(MMHUB, 0, regMMMC_VM_AGP_BASE, 0);
176 WREG32_SOC15(MMHUB, 0, regMMMC_VM_AGP_BOT, adev->gmc.agp_start >> 24);
177 WREG32_SOC15(MMHUB, 0, regMMMC_VM_AGP_TOP, adev->gmc.agp_end >> 24);
178
179 /*
180 * the new L1 policy will block SRIOV guest from writing
181 * these regs, and they will be programed at host.
182 * so skip programing these regs.
183 */
184 /* Program the system aperture low logical page number. */
185 WREG32_SOC15(MMHUB, 0, regMMMC_VM_SYSTEM_APERTURE_LOW_ADDR,
186 min(adev->gmc.fb_start, adev->gmc.agp_start) >> 18);
187 WREG32_SOC15(MMHUB, 0, regMMMC_VM_SYSTEM_APERTURE_HIGH_ADDR,
188 max(adev->gmc.fb_end, adev->gmc.agp_end) >> 18);
189
190 /* Set default page address. */
191 value = amdgpu_gmc_vram_mc2pa(adev, mc_addr: adev->mem_scratch.gpu_addr);
192 WREG32_SOC15(MMHUB, 0, regMMMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR_LSB,
193 (u32)(value >> 12));
194 WREG32_SOC15(MMHUB, 0, regMMMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR_MSB,
195 (u32)(value >> 44));
196
197 /* Program "protection fault". */
198 WREG32_SOC15(MMHUB, 0, regMMVM_L2_PROTECTION_FAULT_DEFAULT_ADDR_LO32,
199 (u32)(adev->dummy_page_addr >> 12));
200 WREG32_SOC15(MMHUB, 0, regMMVM_L2_PROTECTION_FAULT_DEFAULT_ADDR_HI32,
201 (u32)((u64)adev->dummy_page_addr >> 44));
202
203 tmp = RREG32_SOC15(MMHUB, 0, regMMVM_L2_PROTECTION_FAULT_CNTL2);
204 tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL2,
205 ACTIVE_PAGE_MIGRATION_PTE_READ_RETRY, 1);
206 WREG32_SOC15(MMHUB, 0, regMMVM_L2_PROTECTION_FAULT_CNTL2, tmp);
207}
208
209static void mmhub_v3_0_1_init_tlb_regs(struct amdgpu_device *adev)
210{
211 uint32_t tmp;
212
213 /* Setup TLB control */
214 tmp = RREG32_SOC15(MMHUB, 0, regMMMC_VM_MX_L1_TLB_CNTL);
215
216 tmp = REG_SET_FIELD(tmp, MMMC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 1);
217 tmp = REG_SET_FIELD(tmp, MMMC_VM_MX_L1_TLB_CNTL, SYSTEM_ACCESS_MODE, 3);
218 tmp = REG_SET_FIELD(tmp, MMMC_VM_MX_L1_TLB_CNTL,
219 ENABLE_ADVANCED_DRIVER_MODEL, 1);
220 tmp = REG_SET_FIELD(tmp, MMMC_VM_MX_L1_TLB_CNTL,
221 SYSTEM_APERTURE_UNMAPPED_ACCESS, 0);
222 tmp = REG_SET_FIELD(tmp, MMMC_VM_MX_L1_TLB_CNTL, ECO_BITS, 0);
223 tmp = REG_SET_FIELD(tmp, MMMC_VM_MX_L1_TLB_CNTL,
224 MTYPE, MTYPE_UC); /* UC, uncached */
225
226 WREG32_SOC15(MMHUB, 0, regMMMC_VM_MX_L1_TLB_CNTL, tmp);
227}
228
229static void mmhub_v3_0_1_init_cache_regs(struct amdgpu_device *adev)
230{
231 uint32_t tmp;
232
233 /* Setup L2 cache */
234 tmp = RREG32_SOC15(MMHUB, 0, regMMVM_L2_CNTL);
235 tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL, ENABLE_L2_CACHE, 1);
236 tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL, ENABLE_L2_FRAGMENT_PROCESSING, 0);
237 tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL,
238 ENABLE_DEFAULT_PAGE_OUT_TO_SYSTEM_MEMORY, 1);
239 /* XXX for emulation, Refer to closed source code.*/
240 tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL, L2_PDE0_CACHE_TAG_GENERATION_MODE,
241 0);
242 tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL, PDE_FAULT_CLASSIFICATION, 0);
243 tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL, CONTEXT1_IDENTITY_ACCESS_MODE, 1);
244 tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL, IDENTITY_MODE_FRAGMENT_SIZE, 0);
245 WREG32_SOC15(MMHUB, 0, regMMVM_L2_CNTL, tmp);
246
247 tmp = RREG32_SOC15(MMHUB, 0, regMMVM_L2_CNTL2);
248 tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL2, INVALIDATE_ALL_L1_TLBS, 1);
249 tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL2, INVALIDATE_L2_CACHE, 1);
250 WREG32_SOC15(MMHUB, 0, regMMVM_L2_CNTL2, tmp);
251
252 tmp = regMMVM_L2_CNTL3_DEFAULT;
253 if (adev->gmc.translate_further) {
254 tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL3, BANK_SELECT, 12);
255 tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL3,
256 L2_CACHE_BIGK_FRAGMENT_SIZE, 9);
257 } else {
258 tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL3, BANK_SELECT, 9);
259 tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL3,
260 L2_CACHE_BIGK_FRAGMENT_SIZE, 6);
261 }
262 WREG32_SOC15(MMHUB, 0, regMMVM_L2_CNTL3, tmp);
263
264 tmp = regMMVM_L2_CNTL4_DEFAULT;
265 tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL4, VMC_TAP_PDE_REQUEST_PHYSICAL, 0);
266 tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL4, VMC_TAP_PTE_REQUEST_PHYSICAL, 0);
267 WREG32_SOC15(MMHUB, 0, regMMVM_L2_CNTL4, tmp);
268
269 tmp = regMMVM_L2_CNTL5_DEFAULT;
270 tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL5, L2_CACHE_SMALLK_FRAGMENT_SIZE, 0);
271 WREG32_SOC15(MMHUB, 0, regMMVM_L2_CNTL5, tmp);
272}
273
274static void mmhub_v3_0_1_enable_system_domain(struct amdgpu_device *adev)
275{
276 uint32_t tmp;
277
278 tmp = RREG32_SOC15(MMHUB, 0, regMMVM_CONTEXT0_CNTL);
279 tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT0_CNTL, ENABLE_CONTEXT, 1);
280 tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT0_CNTL, PAGE_TABLE_DEPTH, 0);
281 tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT0_CNTL,
282 RETRY_PERMISSION_OR_INVALID_PAGE_FAULT, 0);
283 WREG32_SOC15(MMHUB, 0, regMMVM_CONTEXT0_CNTL, tmp);
284}
285
286static void mmhub_v3_0_1_disable_identity_aperture(struct amdgpu_device *adev)
287{
288 WREG32_SOC15(MMHUB, 0,
289 regMMVM_L2_CONTEXT1_IDENTITY_APERTURE_LOW_ADDR_LO32,
290 0xFFFFFFFF);
291 WREG32_SOC15(MMHUB, 0,
292 regMMVM_L2_CONTEXT1_IDENTITY_APERTURE_LOW_ADDR_HI32,
293 0x0000000F);
294
295 WREG32_SOC15(MMHUB, 0,
296 regMMVM_L2_CONTEXT1_IDENTITY_APERTURE_HIGH_ADDR_LO32, 0);
297 WREG32_SOC15(MMHUB, 0,
298 regMMVM_L2_CONTEXT1_IDENTITY_APERTURE_HIGH_ADDR_HI32, 0);
299
300 WREG32_SOC15(MMHUB, 0, regMMVM_L2_CONTEXT_IDENTITY_PHYSICAL_OFFSET_LO32,
301 0);
302 WREG32_SOC15(MMHUB, 0, regMMVM_L2_CONTEXT_IDENTITY_PHYSICAL_OFFSET_HI32,
303 0);
304}
305
306static void mmhub_v3_0_1_setup_vmid_config(struct amdgpu_device *adev)
307{
308 struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_MMHUB0(0)];
309 int i;
310 uint32_t tmp;
311
312 for (i = 0; i <= 14; i++) {
313 tmp = RREG32_SOC15_OFFSET(MMHUB, 0, regMMVM_CONTEXT1_CNTL, i * hub->ctx_distance);
314 tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL, ENABLE_CONTEXT, 1);
315 tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL, PAGE_TABLE_DEPTH,
316 adev->vm_manager.num_level);
317 tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL,
318 RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
319 tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL,
320 DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT,
321 1);
322 tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL,
323 PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
324 tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL,
325 VALID_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
326 tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL,
327 READ_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
328 tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL,
329 WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
330 tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL,
331 EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
332 tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL,
333 PAGE_TABLE_BLOCK_SIZE,
334 adev->vm_manager.block_size - 9);
335 /* Send no-retry XNACK on fault to suppress VM fault storm. */
336 tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL,
337 RETRY_PERMISSION_OR_INVALID_PAGE_FAULT,
338 !amdgpu_noretry);
339 WREG32_SOC15_OFFSET(MMHUB, 0, regMMVM_CONTEXT1_CNTL,
340 i * hub->ctx_distance, tmp);
341 WREG32_SOC15_OFFSET(MMHUB, 0, regMMVM_CONTEXT1_PAGE_TABLE_START_ADDR_LO32,
342 i * hub->ctx_addr_distance, 0);
343 WREG32_SOC15_OFFSET(MMHUB, 0, regMMVM_CONTEXT1_PAGE_TABLE_START_ADDR_HI32,
344 i * hub->ctx_addr_distance, 0);
345 WREG32_SOC15_OFFSET(MMHUB, 0, regMMVM_CONTEXT1_PAGE_TABLE_END_ADDR_LO32,
346 i * hub->ctx_addr_distance,
347 lower_32_bits(adev->vm_manager.max_pfn - 1));
348 WREG32_SOC15_OFFSET(MMHUB, 0, regMMVM_CONTEXT1_PAGE_TABLE_END_ADDR_HI32,
349 i * hub->ctx_addr_distance,
350 upper_32_bits(adev->vm_manager.max_pfn - 1));
351 }
352
353 hub->vm_cntx_cntl = tmp;
354}
355
356static void mmhub_v3_0_1_program_invalidation(struct amdgpu_device *adev)
357{
358 struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_MMHUB0(0)];
359 unsigned i;
360
361 for (i = 0; i < 18; ++i) {
362 WREG32_SOC15_OFFSET(MMHUB, 0, regMMVM_INVALIDATE_ENG0_ADDR_RANGE_LO32,
363 i * hub->eng_addr_distance, 0xffffffff);
364 WREG32_SOC15_OFFSET(MMHUB, 0, regMMVM_INVALIDATE_ENG0_ADDR_RANGE_HI32,
365 i * hub->eng_addr_distance, 0x1f);
366 }
367}
368
369static int mmhub_v3_0_1_gart_enable(struct amdgpu_device *adev)
370{
371 /* GART Enable. */
372 mmhub_v3_0_1_init_gart_aperture_regs(adev);
373 mmhub_v3_0_1_init_system_aperture_regs(adev);
374 mmhub_v3_0_1_init_tlb_regs(adev);
375 mmhub_v3_0_1_init_cache_regs(adev);
376
377 mmhub_v3_0_1_enable_system_domain(adev);
378 mmhub_v3_0_1_disable_identity_aperture(adev);
379 mmhub_v3_0_1_setup_vmid_config(adev);
380 mmhub_v3_0_1_program_invalidation(adev);
381
382 return 0;
383}
384
385static void mmhub_v3_0_1_gart_disable(struct amdgpu_device *adev)
386{
387 struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_MMHUB0(0)];
388 u32 tmp;
389 u32 i;
390
391 /* Disable all tables */
392 for (i = 0; i < 16; i++)
393 WREG32_SOC15_OFFSET(MMHUB, 0, regMMVM_CONTEXT0_CNTL,
394 i * hub->ctx_distance, 0);
395
396 /* Setup TLB control */
397 tmp = RREG32_SOC15(MMHUB, 0, regMMMC_VM_MX_L1_TLB_CNTL);
398 tmp = REG_SET_FIELD(tmp, MMMC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 0);
399 tmp = REG_SET_FIELD(tmp, MMMC_VM_MX_L1_TLB_CNTL,
400 ENABLE_ADVANCED_DRIVER_MODEL, 0);
401 WREG32_SOC15(MMHUB, 0, regMMMC_VM_MX_L1_TLB_CNTL, tmp);
402
403 /* Setup L2 cache */
404 tmp = RREG32_SOC15(MMHUB, 0, regMMVM_L2_CNTL);
405 tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL, ENABLE_L2_CACHE, 0);
406 WREG32_SOC15(MMHUB, 0, regMMVM_L2_CNTL, tmp);
407 WREG32_SOC15(MMHUB, 0, regMMVM_L2_CNTL3, 0);
408}
409
410/**
411 * mmhub_v3_0_1_set_fault_enable_default - update GART/VM fault handling
412 *
413 * @adev: amdgpu_device pointer
414 * @value: true redirects VM faults to the default page
415 */
416static void mmhub_v3_0_1_set_fault_enable_default(struct amdgpu_device *adev,
417 bool value)
418{
419 u32 tmp;
420
421 tmp = RREG32_SOC15(MMHUB, 0, regMMVM_L2_PROTECTION_FAULT_CNTL);
422 tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
423 RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
424 tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
425 PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, value);
426 tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
427 PDE1_PROTECTION_FAULT_ENABLE_DEFAULT, value);
428 tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
429 PDE2_PROTECTION_FAULT_ENABLE_DEFAULT, value);
430 tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
431 TRANSLATE_FURTHER_PROTECTION_FAULT_ENABLE_DEFAULT,
432 value);
433 tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
434 NACK_PROTECTION_FAULT_ENABLE_DEFAULT, value);
435 tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
436 DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
437 tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
438 VALID_PROTECTION_FAULT_ENABLE_DEFAULT, value);
439 tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
440 READ_PROTECTION_FAULT_ENABLE_DEFAULT, value);
441 tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
442 WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
443 tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
444 EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
445 if (!value) {
446 tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
447 CRASH_ON_NO_RETRY_FAULT, 1);
448 tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
449 CRASH_ON_RETRY_FAULT, 1);
450 }
451 WREG32_SOC15(MMHUB, 0, regMMVM_L2_PROTECTION_FAULT_CNTL, tmp);
452}
453
454static const struct amdgpu_vmhub_funcs mmhub_v3_0_1_vmhub_funcs = {
455 .print_l2_protection_fault_status = mmhub_v3_0_1_print_l2_protection_fault_status,
456 .get_invalidate_req = mmhub_v3_0_1_get_invalidate_req,
457};
458
459static void mmhub_v3_0_1_init(struct amdgpu_device *adev)
460{
461 struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_MMHUB0(0)];
462
463 hub->ctx0_ptb_addr_lo32 =
464 SOC15_REG_OFFSET(MMHUB, 0,
465 regMMVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32);
466 hub->ctx0_ptb_addr_hi32 =
467 SOC15_REG_OFFSET(MMHUB, 0,
468 regMMVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32);
469 hub->vm_inv_eng0_sem =
470 SOC15_REG_OFFSET(MMHUB, 0, regMMVM_INVALIDATE_ENG0_SEM);
471 hub->vm_inv_eng0_req =
472 SOC15_REG_OFFSET(MMHUB, 0, regMMVM_INVALIDATE_ENG0_REQ);
473 hub->vm_inv_eng0_ack =
474 SOC15_REG_OFFSET(MMHUB, 0, regMMVM_INVALIDATE_ENG0_ACK);
475 hub->vm_context0_cntl =
476 SOC15_REG_OFFSET(MMHUB, 0, regMMVM_CONTEXT0_CNTL);
477 hub->vm_l2_pro_fault_status =
478 SOC15_REG_OFFSET(MMHUB, 0, regMMVM_L2_PROTECTION_FAULT_STATUS);
479 hub->vm_l2_pro_fault_cntl =
480 SOC15_REG_OFFSET(MMHUB, 0, regMMVM_L2_PROTECTION_FAULT_CNTL);
481
482 hub->ctx_distance = regMMVM_CONTEXT1_CNTL - regMMVM_CONTEXT0_CNTL;
483 hub->ctx_addr_distance = regMMVM_CONTEXT1_PAGE_TABLE_BASE_ADDR_LO32 -
484 regMMVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32;
485 hub->eng_distance = regMMVM_INVALIDATE_ENG1_REQ -
486 regMMVM_INVALIDATE_ENG0_REQ;
487 hub->eng_addr_distance = regMMVM_INVALIDATE_ENG1_ADDR_RANGE_LO32 -
488 regMMVM_INVALIDATE_ENG0_ADDR_RANGE_LO32;
489
490 hub->vm_cntx_cntl_vm_fault = MMVM_CONTEXT1_CNTL__RANGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
491 MMVM_CONTEXT1_CNTL__DUMMY_PAGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
492 MMVM_CONTEXT1_CNTL__PDE0_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
493 MMVM_CONTEXT1_CNTL__VALID_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
494 MMVM_CONTEXT1_CNTL__READ_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
495 MMVM_CONTEXT1_CNTL__WRITE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
496 MMVM_CONTEXT1_CNTL__EXECUTE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK;
497
498 hub->vmhub_funcs = &mmhub_v3_0_1_vmhub_funcs;
499}
500
501static u64 mmhub_v3_0_1_get_fb_location(struct amdgpu_device *adev)
502{
503 u64 base;
504
505 base = RREG32_SOC15(MMHUB, 0, regMMMC_VM_FB_LOCATION_BASE);
506 base &= MMMC_VM_FB_LOCATION_BASE__FB_BASE_MASK;
507 base <<= 24;
508
509 return base;
510}
511
512static u64 mmhub_v3_0_1_get_mc_fb_offset(struct amdgpu_device *adev)
513{
514 return (u64)RREG32_SOC15(MMHUB, 0, regMMMC_VM_FB_OFFSET) << 24;
515}
516
517static void mmhub_v3_0_1_update_medium_grain_clock_gating(struct amdgpu_device *adev,
518 bool enable)
519{
520 uint32_t def, data;
521
522 def = data = RREG32_SOC15(MMHUB, 0, regMM_ATC_L2_MISC_CG);
523
524 if (enable)
525 data |= MM_ATC_L2_MISC_CG__ENABLE_MASK;
526 else
527 data &= ~MM_ATC_L2_MISC_CG__ENABLE_MASK;
528
529 if (def != data)
530 WREG32_SOC15(MMHUB, 0, regMM_ATC_L2_MISC_CG, data);
531}
532
533static void mmhub_v3_0_1_update_medium_grain_light_sleep(struct amdgpu_device *adev,
534 bool enable)
535{
536 uint32_t def, data;
537
538 def = data = RREG32_SOC15(MMHUB, 0, regMM_ATC_L2_MISC_CG);
539
540 if (enable)
541 data |= MM_ATC_L2_MISC_CG__MEM_LS_ENABLE_MASK;
542 else
543 data &= ~MM_ATC_L2_MISC_CG__MEM_LS_ENABLE_MASK;
544
545 if (def != data)
546 WREG32_SOC15(MMHUB, 0, regMM_ATC_L2_MISC_CG, data);
547}
548
549static int mmhub_v3_0_1_set_clockgating(struct amdgpu_device *adev,
550 enum amd_clockgating_state state)
551{
552 if (amdgpu_sriov_vf(adev))
553 return 0;
554
555 mmhub_v3_0_1_update_medium_grain_clock_gating(adev,
556 enable: state == AMD_CG_STATE_GATE);
557 mmhub_v3_0_1_update_medium_grain_light_sleep(adev,
558 enable: state == AMD_CG_STATE_GATE);
559 return 0;
560}
561
562static void mmhub_v3_0_1_get_clockgating(struct amdgpu_device *adev, u64 *flags)
563{
564 int data;
565
566 if (amdgpu_sriov_vf(adev))
567 *flags = 0;
568
569 data = RREG32_SOC15(MMHUB, 0, regMM_ATC_L2_MISC_CG);
570
571 /* AMD_CG_SUPPORT_MC_MGCG */
572 if (data & MM_ATC_L2_MISC_CG__ENABLE_MASK)
573 *flags |= AMD_CG_SUPPORT_MC_MGCG;
574
575 /* AMD_CG_SUPPORT_MC_LS */
576 if (data & MM_ATC_L2_MISC_CG__MEM_LS_ENABLE_MASK)
577 *flags |= AMD_CG_SUPPORT_MC_LS;
578}
579
580const struct amdgpu_mmhub_funcs mmhub_v3_0_1_funcs = {
581 .init = mmhub_v3_0_1_init,
582 .get_fb_location = mmhub_v3_0_1_get_fb_location,
583 .get_mc_fb_offset = mmhub_v3_0_1_get_mc_fb_offset,
584 .gart_enable = mmhub_v3_0_1_gart_enable,
585 .set_fault_enable_default = mmhub_v3_0_1_set_fault_enable_default,
586 .gart_disable = mmhub_v3_0_1_gart_disable,
587 .set_clockgating = mmhub_v3_0_1_set_clockgating,
588 .get_clockgating = mmhub_v3_0_1_get_clockgating,
589 .setup_vm_pt_regs = mmhub_v3_0_1_setup_vm_pt_regs,
590};
591

source code of linux/drivers/gpu/drm/amd/amdgpu/mmhub_v3_0_1.c