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
24#include "amdgpu.h"
25#include "mmhub_v4_1_0.h"
26
27#include "mmhub/mmhub_4_1_0_offset.h"
28#include "mmhub/mmhub_4_1_0_sh_mask.h"
29
30#include "soc15_common.h"
31#include "soc24_enum.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_v4_1_0[][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_v4_1_0_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 /* Only use legacy inv on mmhub side */
84 req = REG_SET_FIELD(req, MMVM_INVALIDATE_ENG0_REQ, FLUSH_TYPE, 0);
85 req = REG_SET_FIELD(req, MMVM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PTES, 1);
86 req = REG_SET_FIELD(req, MMVM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PDE0, 1);
87 req = REG_SET_FIELD(req, MMVM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PDE1, 1);
88 req = REG_SET_FIELD(req, MMVM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PDE2, 1);
89 req = REG_SET_FIELD(req, MMVM_INVALIDATE_ENG0_REQ, INVALIDATE_L1_PTES, 1);
90 req = REG_SET_FIELD(req, MMVM_INVALIDATE_ENG0_REQ,
91 CLEAR_PROTECTION_FAULT_STATUS_ADDR, 0);
92
93 return req;
94}
95
96static void
97mmhub_v4_1_0_print_l2_protection_fault_status(struct amdgpu_device *adev,
98 uint32_t status)
99{
100 uint32_t cid, rw;
101 const char *mmhub_cid = NULL;
102
103 cid = REG_GET_FIELD(status,
104 MMVM_L2_PROTECTION_FAULT_STATUS_LO32, CID);
105 rw = REG_GET_FIELD(status,
106 MMVM_L2_PROTECTION_FAULT_STATUS_LO32, RW);
107
108 dev_err(adev->dev,
109 "MMVM_L2_PROTECTION_FAULT_STATUS_LO32:0x%08X\n",
110 status);
111 switch (amdgpu_ip_version(adev, ip: MMHUB_HWIP, inst: 0)) {
112 case IP_VERSION(4, 1, 0):
113 mmhub_cid = mmhub_client_ids_v4_1_0[cid][rw];
114 break;
115 default:
116 mmhub_cid = NULL;
117 break;
118 }
119 dev_err(adev->dev, "\t Faulty UTCL2 client ID: %s (0x%x)\n",
120 mmhub_cid ? mmhub_cid : "unknown", cid);
121 dev_err(adev->dev, "\t MORE_FAULTS: 0x%lx\n",
122 REG_GET_FIELD(status,
123 MMVM_L2_PROTECTION_FAULT_STATUS_LO32, MORE_FAULTS));
124 dev_err(adev->dev, "\t WALKER_ERROR: 0x%lx\n",
125 REG_GET_FIELD(status,
126 MMVM_L2_PROTECTION_FAULT_STATUS_LO32, WALKER_ERROR));
127 dev_err(adev->dev, "\t PERMISSION_FAULTS: 0x%lx\n",
128 REG_GET_FIELD(status,
129 MMVM_L2_PROTECTION_FAULT_STATUS_LO32, PERMISSION_FAULTS));
130 dev_err(adev->dev, "\t MAPPING_ERROR: 0x%lx\n",
131 REG_GET_FIELD(status,
132 MMVM_L2_PROTECTION_FAULT_STATUS_LO32, MAPPING_ERROR));
133 dev_err(adev->dev, "\t RW: 0x%x\n", rw);
134}
135
136static void mmhub_v4_1_0_setup_vm_pt_regs(struct amdgpu_device *adev,
137 uint32_t vmid, uint64_t page_table_base)
138{
139 struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_MMHUB0(0)];
140
141 WREG32_SOC15_OFFSET(MMHUB, 0, regMMVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32,
142 hub->ctx_addr_distance * vmid,
143 lower_32_bits(page_table_base));
144
145 WREG32_SOC15_OFFSET(MMHUB, 0, regMMVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32,
146 hub->ctx_addr_distance * vmid,
147 upper_32_bits(page_table_base));
148}
149
150static void mmhub_v4_1_0_init_gart_aperture_regs(struct amdgpu_device *adev)
151{
152 uint64_t pt_base = amdgpu_gmc_pd_addr(bo: adev->gart.bo);
153
154 mmhub_v4_1_0_setup_vm_pt_regs(adev, vmid: 0, page_table_base: pt_base);
155
156 WREG32_SOC15(MMHUB, 0, regMMVM_CONTEXT0_PAGE_TABLE_START_ADDR_LO32,
157 (u32)(adev->gmc.gart_start >> 12));
158 WREG32_SOC15(MMHUB, 0, regMMVM_CONTEXT0_PAGE_TABLE_START_ADDR_HI32,
159 (u32)(adev->gmc.gart_start >> 44));
160
161 WREG32_SOC15(MMHUB, 0, regMMVM_CONTEXT0_PAGE_TABLE_END_ADDR_LO32,
162 (u32)(adev->gmc.gart_end >> 12));
163 WREG32_SOC15(MMHUB, 0, regMMVM_CONTEXT0_PAGE_TABLE_END_ADDR_HI32,
164 (u32)(adev->gmc.gart_end >> 44));
165}
166
167static void mmhub_v4_1_0_init_system_aperture_regs(struct amdgpu_device *adev)
168{
169 uint64_t value;
170 uint32_t tmp;
171
172 /*
173 * the new L1 policy will block SRIOV guest from writing
174 * these regs, and they will be programed at host.
175 * so skip programing these regs.
176 */
177 if (amdgpu_sriov_vf(adev))
178 return;
179
180 /* Program the AGP BAR */
181 WREG32_SOC15(MMHUB, 0, regMMMC_VM_AGP_BASE, 0);
182 WREG32_SOC15(MMHUB, 0, regMMMC_VM_AGP_BOT, adev->gmc.agp_start >> 24);
183 WREG32_SOC15(MMHUB, 0, regMMMC_VM_AGP_TOP, adev->gmc.agp_end >> 24);
184
185 /* Program the system aperture low logical page number. */
186 WREG32_SOC15(MMHUB, 0, regMMMC_VM_SYSTEM_APERTURE_LOW_ADDR,
187 min(adev->gmc.fb_start, adev->gmc.agp_start) >> 18);
188 WREG32_SOC15(MMHUB, 0, regMMMC_VM_SYSTEM_APERTURE_HIGH_ADDR,
189 max(adev->gmc.fb_end, adev->gmc.agp_end) >> 18);
190
191 /* Set default page address. */
192 value = adev->mem_scratch.gpu_addr - adev->gmc.vram_start +
193 adev->vm_manager.vram_base_offset;
194 WREG32_SOC15(MMHUB, 0, regMMMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR_LSB,
195 (u32)(value >> 12));
196 WREG32_SOC15(MMHUB, 0, regMMMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR_MSB,
197 (u32)(value >> 44));
198
199 /* Program "protection fault". */
200 WREG32_SOC15(MMHUB, 0, regMMVM_L2_PROTECTION_FAULT_DEFAULT_ADDR_LO32,
201 (u32)(adev->dummy_page_addr >> 12));
202 WREG32_SOC15(MMHUB, 0, regMMVM_L2_PROTECTION_FAULT_DEFAULT_ADDR_HI32,
203 (u32)((u64)adev->dummy_page_addr >> 44));
204
205 tmp = RREG32_SOC15(MMHUB, 0, regMMVM_L2_PROTECTION_FAULT_CNTL2);
206 tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL2,
207 ACTIVE_PAGE_MIGRATION_PTE_READ_RETRY, 1);
208 WREG32_SOC15(MMHUB, 0, regMMVM_L2_PROTECTION_FAULT_CNTL2, tmp);
209}
210
211static void mmhub_v4_1_0_init_tlb_regs(struct amdgpu_device *adev)
212{
213 uint32_t tmp;
214
215 /* Setup TLB control */
216 tmp = RREG32_SOC15(MMHUB, 0, regMMMC_VM_MX_L1_TLB_CNTL);
217
218 tmp = REG_SET_FIELD(tmp, MMMC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 1);
219 tmp = REG_SET_FIELD(tmp, MMMC_VM_MX_L1_TLB_CNTL, SYSTEM_ACCESS_MODE, 3);
220 tmp = REG_SET_FIELD(tmp, MMMC_VM_MX_L1_TLB_CNTL,
221 ENABLE_ADVANCED_DRIVER_MODEL, 1);
222 tmp = REG_SET_FIELD(tmp, MMMC_VM_MX_L1_TLB_CNTL,
223 SYSTEM_APERTURE_UNMAPPED_ACCESS, 0);
224 tmp = REG_SET_FIELD(tmp, MMMC_VM_MX_L1_TLB_CNTL, ECO_BITS, 0);
225 tmp = REG_SET_FIELD(tmp, MMMC_VM_MX_L1_TLB_CNTL,
226 MTYPE, MTYPE_UC); /* UC, uncached */
227
228 WREG32_SOC15(MMHUB, 0, regMMMC_VM_MX_L1_TLB_CNTL, tmp);
229}
230
231static void mmhub_v4_1_0_init_cache_regs(struct amdgpu_device *adev)
232{
233 uint32_t tmp;
234
235 /* These registers are not accessible to VF-SRIOV.
236 * The PF will program them instead.
237 */
238 if (amdgpu_sriov_vf(adev))
239 return;
240
241 /* Setup L2 cache */
242 tmp = RREG32_SOC15(MMHUB, 0, regMMVM_L2_CNTL);
243 tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL, ENABLE_L2_CACHE, 1);
244 tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL, ENABLE_L2_FRAGMENT_PROCESSING, 0);
245 tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL,
246 ENABLE_DEFAULT_PAGE_OUT_TO_SYSTEM_MEMORY, 1);
247 /* XXX for emulation, Refer to closed source code.*/
248 tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL, L2_PDE0_CACHE_TAG_GENERATION_MODE,
249 0);
250 tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL, PDE_FAULT_CLASSIFICATION, 0);
251 tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL, CONTEXT1_IDENTITY_ACCESS_MODE, 1);
252 tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL, IDENTITY_MODE_FRAGMENT_SIZE, 0);
253 WREG32_SOC15(MMHUB, 0, regMMVM_L2_CNTL, tmp);
254
255 tmp = RREG32_SOC15(MMHUB, 0, regMMVM_L2_CNTL2);
256 tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL2, INVALIDATE_ALL_L1_TLBS, 1);
257 tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL2, INVALIDATE_L2_CACHE, 1);
258 WREG32_SOC15(MMHUB, 0, regMMVM_L2_CNTL2, tmp);
259
260 tmp = regMMVM_L2_CNTL3_DEFAULT;
261 if (adev->gmc.translate_further) {
262 tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL3, BANK_SELECT, 12);
263 tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL3,
264 L2_CACHE_BIGK_FRAGMENT_SIZE, 9);
265 } else {
266 tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL3, BANK_SELECT, 9);
267 tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL3,
268 L2_CACHE_BIGK_FRAGMENT_SIZE, 6);
269 }
270 WREG32_SOC15(MMHUB, 0, regMMVM_L2_CNTL3, tmp);
271
272 tmp = regMMVM_L2_CNTL4_DEFAULT;
273 tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL4, VMC_TAP_PDE_REQUEST_PHYSICAL, 0);
274 tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL4, VMC_TAP_PTE_REQUEST_PHYSICAL, 0);
275 WREG32_SOC15(MMHUB, 0, regMMVM_L2_CNTL4, tmp);
276
277 tmp = regMMVM_L2_CNTL5_DEFAULT;
278 tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL5, L2_CACHE_SMALLK_FRAGMENT_SIZE, 0);
279 WREG32_SOC15(MMHUB, 0, regMMVM_L2_CNTL5, tmp);
280}
281
282static void mmhub_v4_1_0_enable_system_domain(struct amdgpu_device *adev)
283{
284 uint32_t tmp;
285
286 tmp = RREG32_SOC15(MMHUB, 0, regMMVM_CONTEXT0_CNTL);
287 tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT0_CNTL, ENABLE_CONTEXT, 1);
288 tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT0_CNTL, PAGE_TABLE_DEPTH, 0);
289 tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT0_CNTL,
290 RETRY_PERMISSION_OR_INVALID_PAGE_FAULT, 0);
291 WREG32_SOC15(MMHUB, 0, regMMVM_CONTEXT0_CNTL, tmp);
292}
293
294static void mmhub_v4_1_0_disable_identity_aperture(struct amdgpu_device *adev)
295{
296 /* These registers are not accessible to VF-SRIOV.
297 * The PF will program them instead.
298 */
299 if (amdgpu_sriov_vf(adev))
300 return;
301
302 WREG32_SOC15(MMHUB, 0,
303 regMMVM_L2_CONTEXT1_IDENTITY_APERTURE_LOW_ADDR_LO32,
304 0xFFFFFFFF);
305 WREG32_SOC15(MMHUB, 0,
306 regMMVM_L2_CONTEXT1_IDENTITY_APERTURE_LOW_ADDR_HI32,
307 0x0000000F);
308
309 WREG32_SOC15(MMHUB, 0,
310 regMMVM_L2_CONTEXT1_IDENTITY_APERTURE_HIGH_ADDR_LO32, 0);
311 WREG32_SOC15(MMHUB, 0,
312 regMMVM_L2_CONTEXT1_IDENTITY_APERTURE_HIGH_ADDR_HI32, 0);
313
314 WREG32_SOC15(MMHUB, 0, regMMVM_L2_CONTEXT_IDENTITY_PHYSICAL_OFFSET_LO32,
315 0);
316 WREG32_SOC15(MMHUB, 0, regMMVM_L2_CONTEXT_IDENTITY_PHYSICAL_OFFSET_HI32,
317 0);
318}
319
320static void mmhub_v4_1_0_setup_vmid_config(struct amdgpu_device *adev)
321{
322 struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_MMHUB0(0)];
323 int i;
324 uint32_t tmp;
325
326 for (i = 0; i <= 14; i++) {
327 tmp = RREG32_SOC15_OFFSET(MMHUB, 0, regMMVM_CONTEXT1_CNTL, i);
328 tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL, ENABLE_CONTEXT, 1);
329 tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL, PAGE_TABLE_DEPTH,
330 adev->vm_manager.num_level);
331 tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL,
332 RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
333 tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL,
334 DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT,
335 1);
336 tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL,
337 PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
338 tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL,
339 VALID_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
340 tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL,
341 READ_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
342 tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL,
343 WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
344 tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL,
345 EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
346 tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL,
347 PAGE_TABLE_BLOCK_SIZE,
348 adev->vm_manager.block_size - 9);
349 /* Send no-retry XNACK on fault to suppress VM fault storm. */
350 tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL,
351 RETRY_PERMISSION_OR_INVALID_PAGE_FAULT,
352 !amdgpu_noretry);
353 WREG32_SOC15_OFFSET(MMHUB, 0, regMMVM_CONTEXT1_CNTL,
354 i * hub->ctx_distance, tmp);
355 WREG32_SOC15_OFFSET(MMHUB, 0, regMMVM_CONTEXT1_PAGE_TABLE_START_ADDR_LO32,
356 i * hub->ctx_addr_distance, 0);
357 WREG32_SOC15_OFFSET(MMHUB, 0, regMMVM_CONTEXT1_PAGE_TABLE_START_ADDR_HI32,
358 i * hub->ctx_addr_distance, 0);
359 WREG32_SOC15_OFFSET(MMHUB, 0, regMMVM_CONTEXT1_PAGE_TABLE_END_ADDR_LO32,
360 i * hub->ctx_addr_distance,
361 lower_32_bits(adev->vm_manager.max_pfn - 1));
362 WREG32_SOC15_OFFSET(MMHUB, 0, regMMVM_CONTEXT1_PAGE_TABLE_END_ADDR_HI32,
363 i * hub->ctx_addr_distance,
364 upper_32_bits(adev->vm_manager.max_pfn - 1));
365 }
366
367 hub->vm_cntx_cntl = tmp;
368}
369
370static void mmhub_v4_1_0_program_invalidation(struct amdgpu_device *adev)
371{
372 struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_MMHUB0(0)];
373 unsigned i;
374
375 for (i = 0; i < 18; ++i) {
376 WREG32_SOC15_OFFSET(MMHUB, 0, regMMVM_INVALIDATE_ENG0_ADDR_RANGE_LO32,
377 i * hub->eng_addr_distance, 0xffffffff);
378 WREG32_SOC15_OFFSET(MMHUB, 0, regMMVM_INVALIDATE_ENG0_ADDR_RANGE_HI32,
379 i * hub->eng_addr_distance, 0x1f);
380 }
381}
382
383static int mmhub_v4_1_0_gart_enable(struct amdgpu_device *adev)
384{
385 /* GART Enable. */
386 mmhub_v4_1_0_init_gart_aperture_regs(adev);
387 mmhub_v4_1_0_init_system_aperture_regs(adev);
388 mmhub_v4_1_0_init_tlb_regs(adev);
389 mmhub_v4_1_0_init_cache_regs(adev);
390
391 mmhub_v4_1_0_enable_system_domain(adev);
392 mmhub_v4_1_0_disable_identity_aperture(adev);
393 mmhub_v4_1_0_setup_vmid_config(adev);
394 mmhub_v4_1_0_program_invalidation(adev);
395
396 return 0;
397}
398
399static void mmhub_v4_1_0_gart_disable(struct amdgpu_device *adev)
400{
401 struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_MMHUB0(0)];
402 u32 tmp;
403 u32 i;
404
405 /* Disable all tables */
406 for (i = 0; i < 16; i++)
407 WREG32_SOC15_OFFSET(MMHUB, 0, regMMVM_CONTEXT0_CNTL,
408 i * hub->ctx_distance, 0);
409
410 /* Setup TLB control */
411 tmp = RREG32_SOC15(MMHUB, 0, regMMMC_VM_MX_L1_TLB_CNTL);
412 tmp = REG_SET_FIELD(tmp, MMMC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 0);
413 tmp = REG_SET_FIELD(tmp, MMMC_VM_MX_L1_TLB_CNTL,
414 ENABLE_ADVANCED_DRIVER_MODEL, 0);
415 WREG32_SOC15(MMHUB, 0, regMMMC_VM_MX_L1_TLB_CNTL, tmp);
416
417 /* Setup L2 cache */
418 tmp = RREG32_SOC15(MMHUB, 0, regMMVM_L2_CNTL);
419 tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL, ENABLE_L2_CACHE, 0);
420 WREG32_SOC15(MMHUB, 0, regMMVM_L2_CNTL, tmp);
421 WREG32_SOC15(MMHUB, 0, regMMVM_L2_CNTL3, 0);
422}
423
424/**
425 * mmhub_v4_1_0_set_fault_enable_default - update GART/VM fault handling
426 *
427 * @adev: amdgpu_device pointer
428 * @value: true redirects VM faults to the default page
429 */
430static void
431mmhub_v4_1_0_set_fault_enable_default(struct amdgpu_device *adev, bool value)
432{
433 u32 tmp;
434
435 /* These registers are not accessible to VF-SRIOV.
436 * The PF will program them instead.
437 */
438 if (amdgpu_sriov_vf(adev))
439 return;
440
441 tmp = RREG32_SOC15(MMHUB, 0, regMMVM_L2_PROTECTION_FAULT_CNTL);
442 tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
443 RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
444 tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
445 PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, value);
446 tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
447 PDE1_PROTECTION_FAULT_ENABLE_DEFAULT, value);
448 tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
449 PDE2_PROTECTION_FAULT_ENABLE_DEFAULT, value);
450 tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
451 TRANSLATE_FURTHER_PROTECTION_FAULT_ENABLE_DEFAULT,
452 value);
453 tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
454 NACK_PROTECTION_FAULT_ENABLE_DEFAULT, value);
455 tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
456 DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
457 tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
458 VALID_PROTECTION_FAULT_ENABLE_DEFAULT, value);
459 tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
460 READ_PROTECTION_FAULT_ENABLE_DEFAULT, value);
461 tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
462 WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
463 tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
464 EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
465 if (!value) {
466 tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
467 CRASH_ON_NO_RETRY_FAULT, 1);
468 tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
469 CRASH_ON_RETRY_FAULT, 1);
470 }
471 WREG32_SOC15(MMHUB, 0, regMMVM_L2_PROTECTION_FAULT_CNTL, tmp);
472}
473
474static const struct amdgpu_vmhub_funcs mmhub_v4_1_0_vmhub_funcs = {
475 .print_l2_protection_fault_status = mmhub_v4_1_0_print_l2_protection_fault_status,
476 .get_invalidate_req = mmhub_v4_1_0_get_invalidate_req,
477};
478
479static void mmhub_v4_1_0_init(struct amdgpu_device *adev)
480{
481 struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_MMHUB0(0)];
482
483 hub->ctx0_ptb_addr_lo32 =
484 SOC15_REG_OFFSET(MMHUB, 0,
485 regMMVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32);
486 hub->ctx0_ptb_addr_hi32 =
487 SOC15_REG_OFFSET(MMHUB, 0,
488 regMMVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32);
489 hub->vm_inv_eng0_sem =
490 SOC15_REG_OFFSET(MMHUB, 0, regMMVM_INVALIDATE_ENG0_SEM);
491 hub->vm_inv_eng0_req =
492 SOC15_REG_OFFSET(MMHUB, 0, regMMVM_INVALIDATE_ENG0_REQ);
493 hub->vm_inv_eng0_ack =
494 SOC15_REG_OFFSET(MMHUB, 0, regMMVM_INVALIDATE_ENG0_ACK);
495 hub->vm_context0_cntl =
496 SOC15_REG_OFFSET(MMHUB, 0, regMMVM_CONTEXT0_CNTL);
497 hub->vm_l2_pro_fault_status =
498 SOC15_REG_OFFSET(MMHUB, 0, regMMVM_L2_PROTECTION_FAULT_STATUS_LO32);
499 hub->vm_l2_pro_fault_cntl =
500 SOC15_REG_OFFSET(MMHUB, 0, regMMVM_L2_PROTECTION_FAULT_CNTL);
501
502 hub->ctx_distance = regMMVM_CONTEXT1_CNTL - regMMVM_CONTEXT0_CNTL;
503 hub->ctx_addr_distance = regMMVM_CONTEXT1_PAGE_TABLE_BASE_ADDR_LO32 -
504 regMMVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32;
505 hub->eng_distance = regMMVM_INVALIDATE_ENG1_REQ -
506 regMMVM_INVALIDATE_ENG0_REQ;
507 hub->eng_addr_distance = regMMVM_INVALIDATE_ENG1_ADDR_RANGE_LO32 -
508 regMMVM_INVALIDATE_ENG0_ADDR_RANGE_LO32;
509
510 hub->vm_cntx_cntl_vm_fault = MMVM_CONTEXT1_CNTL__RANGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
511 MMVM_CONTEXT1_CNTL__DUMMY_PAGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
512 MMVM_CONTEXT1_CNTL__PDE0_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
513 MMVM_CONTEXT1_CNTL__VALID_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
514 MMVM_CONTEXT1_CNTL__READ_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
515 MMVM_CONTEXT1_CNTL__WRITE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
516 MMVM_CONTEXT1_CNTL__EXECUTE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK;
517
518 hub->vm_l2_bank_select_reserved_cid2 =
519 SOC15_REG_OFFSET(MMHUB, 0, regMMVM_L2_BANK_SELECT_RESERVED_CID2);
520
521 hub->vm_contexts_disable =
522 SOC15_REG_OFFSET(MMHUB, 0, regMMVM_CONTEXTS_DISABLE);
523
524 hub->vmhub_funcs = &mmhub_v4_1_0_vmhub_funcs;
525}
526
527static u64 mmhub_v4_1_0_get_fb_location(struct amdgpu_device *adev)
528{
529 u64 base;
530
531 base = RREG32_SOC15(MMHUB, 0, regMMMC_VM_FB_LOCATION_BASE);
532
533 base &= MMMC_VM_FB_LOCATION_BASE__FB_BASE_MASK;
534 base <<= 24;
535
536 return base;
537}
538
539static u64 mmhub_v4_1_0_get_mc_fb_offset(struct amdgpu_device *adev)
540{
541 return (u64)RREG32_SOC15(MMHUB, 0, regMMMC_VM_FB_OFFSET) << 24;
542}
543
544static void
545mmhub_v4_1_0_update_medium_grain_clock_gating(struct amdgpu_device *adev,
546 bool enable)
547{
548#if 0
549 uint32_t def, data;
550#endif
551 uint32_t def1, data1, def2 = 0, data2 = 0;
552#if 0
553 def = data = RREG32_SOC15(MMHUB, 0, regMM_ATC_L2_MISC_CG);
554#endif
555 def1 = data1 = RREG32_SOC15(MMHUB, 0, regDAGB0_CNTL_MISC2);
556 def2 = data2 = RREG32_SOC15(MMHUB, 0, regDAGB1_CNTL_MISC2);
557
558 if (enable) {
559#if 0
560 data |= MM_ATC_L2_MISC_CG__ENABLE_MASK;
561#endif
562 data1 &= ~(DAGB0_CNTL_MISC2__DISABLE_RDRET_TAP_CHAIN_FGCG_MASK |
563 DAGB0_CNTL_MISC2__DISABLE_WRRET_TAP_CHAIN_FGCG_MASK);
564
565 data2 &= ~(DAGB1_CNTL_MISC2__DISABLE_RDRET_TAP_CHAIN_FGCG_MASK |
566 DAGB1_CNTL_MISC2__DISABLE_WRRET_TAP_CHAIN_FGCG_MASK);
567 } else {
568#if 0
569 data &= ~MM_ATC_L2_MISC_CG__ENABLE_MASK;
570#endif
571 data1 |= (DAGB0_CNTL_MISC2__DISABLE_RDRET_TAP_CHAIN_FGCG_MASK |
572 DAGB0_CNTL_MISC2__DISABLE_WRRET_TAP_CHAIN_FGCG_MASK);
573
574 data2 |= (DAGB1_CNTL_MISC2__DISABLE_RDRET_TAP_CHAIN_FGCG_MASK |
575 DAGB1_CNTL_MISC2__DISABLE_WRRET_TAP_CHAIN_FGCG_MASK);
576 }
577
578#if 0
579 if (def != data)
580 WREG32_SOC15(MMHUB, 0, regMM_ATC_L2_MISC_CG, data);
581#endif
582 if (def1 != data1)
583 WREG32_SOC15(MMHUB, 0, regDAGB0_CNTL_MISC2, data1);
584
585 if (def2 != data2)
586 WREG32_SOC15(MMHUB, 0, regDAGB1_CNTL_MISC2, data2);
587}
588
589static void
590mmhub_v4_1_0_update_medium_grain_light_sleep(struct amdgpu_device *adev,
591 bool enable)
592{
593#if 0
594 uint32_t def, data;
595
596 def = data = RREG32_SOC15(MMHUB, 0, regMM_ATC_L2_MISC_CG);
597
598 if (enable)
599 data |= MM_ATC_L2_MISC_CG__MEM_LS_ENABLE_MASK;
600 else
601 data &= ~MM_ATC_L2_MISC_CG__MEM_LS_ENABLE_MASK;
602
603 if (def != data)
604 WREG32_SOC15(MMHUB, 0, regMM_ATC_L2_MISC_CG, data);
605#endif
606}
607
608static int mmhub_v4_1_0_set_clockgating(struct amdgpu_device *adev,
609 enum amd_clockgating_state state)
610{
611 if (amdgpu_sriov_vf(adev))
612 return 0;
613
614 if (adev->cg_flags & AMD_CG_SUPPORT_MC_MGCG)
615 mmhub_v4_1_0_update_medium_grain_clock_gating(adev,
616 enable: state == AMD_CG_STATE_GATE);
617
618 if (adev->cg_flags & AMD_CG_SUPPORT_MC_LS)
619 mmhub_v4_1_0_update_medium_grain_light_sleep(adev,
620 enable: state == AMD_CG_STATE_GATE);
621
622 return 0;
623}
624
625static void mmhub_v4_1_0_get_clockgating(struct amdgpu_device *adev, u64 *flags)
626{
627#if 0
628 int data;
629
630 if (amdgpu_sriov_vf(adev))
631 *flags = 0;
632
633 data = RREG32_SOC15(MMHUB, 0, regMM_ATC_L2_MISC_CG);
634
635 /* AMD_CG_SUPPORT_MC_MGCG */
636 if (data & MM_ATC_L2_MISC_CG__ENABLE_MASK)
637 *flags |= AMD_CG_SUPPORT_MC_MGCG;
638
639 /* AMD_CG_SUPPORT_MC_LS */
640 if (data & MM_ATC_L2_MISC_CG__MEM_LS_ENABLE_MASK)
641 *flags |= AMD_CG_SUPPORT_MC_LS;
642#endif
643}
644
645const struct amdgpu_mmhub_funcs mmhub_v4_1_0_funcs = {
646 .init = mmhub_v4_1_0_init,
647 .get_fb_location = mmhub_v4_1_0_get_fb_location,
648 .get_mc_fb_offset = mmhub_v4_1_0_get_mc_fb_offset,
649 .gart_enable = mmhub_v4_1_0_gart_enable,
650 .set_fault_enable_default = mmhub_v4_1_0_set_fault_enable_default,
651 .gart_disable = mmhub_v4_1_0_gart_disable,
652 .set_clockgating = mmhub_v4_1_0_set_clockgating,
653 .get_clockgating = mmhub_v4_1_0_get_clockgating,
654 .setup_vm_pt_regs = mmhub_v4_1_0_setup_vm_pt_regs,
655};
656

source code of linux/drivers/gpu/drm/amd/amdgpu/mmhub_v4_1_0.c