1 /*
2  * Copyright 2019 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_v2_3.h"
26 
27 #include "mmhub/mmhub_2_3_0_offset.h"
28 #include "mmhub/mmhub_2_3_0_sh_mask.h"
29 #include "mmhub/mmhub_2_3_0_default.h"
30 #include "navi10_enum.h"
31 
32 #include "soc15_common.h"
33 
34 static const char *mmhub_client_ids_vangogh[][2] = {
35 	[0][0] = "MP0",
36 	[1][0] = "MP1",
37 	[2][0] = "DCEDMC",
38 	[3][0] = "DCEVGA",
39 	[13][0] = "UTCL2",
40 	[26][0] = "OSS",
41 	[27][0] = "HDP",
42 	[28][0] = "VCN",
43 	[29][0] = "VCNU",
44 	[30][0] = "JPEG",
45 	[0][1] = "MP0",
46 	[1][1] = "MP1",
47 	[2][1] = "DCEDMC",
48 	[3][1] = "DCEVGA",
49 	[4][1] = "DCEDWB",
50 	[5][1] = "XDP",
51 	[26][1] = "OSS",
52 	[27][1] = "HDP",
53 	[28][1] = "VCN",
54 	[29][1] = "VCNU",
55 	[30][1] = "JPEG",
56 };
57 
58 static uint32_t mmhub_v2_3_get_invalidate_req(unsigned int vmid,
59 					      uint32_t flush_type)
60 {
61 	u32 req = 0;
62 
63 	/* invalidate using legacy mode on vmid*/
64 	req = REG_SET_FIELD(req, MMVM_INVALIDATE_ENG0_REQ,
65 			    PER_VMID_INVALIDATE_REQ, 1 << vmid);
66 	req = REG_SET_FIELD(req, MMVM_INVALIDATE_ENG0_REQ, FLUSH_TYPE, flush_type);
67 	req = REG_SET_FIELD(req, MMVM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PTES, 1);
68 	req = REG_SET_FIELD(req, MMVM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PDE0, 1);
69 	req = REG_SET_FIELD(req, MMVM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PDE1, 1);
70 	req = REG_SET_FIELD(req, MMVM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PDE2, 1);
71 	req = REG_SET_FIELD(req, MMVM_INVALIDATE_ENG0_REQ, INVALIDATE_L1_PTES, 1);
72 	req = REG_SET_FIELD(req, MMVM_INVALIDATE_ENG0_REQ,
73 			    CLEAR_PROTECTION_FAULT_STATUS_ADDR,	0);
74 
75 	return req;
76 }
77 
78 static void
79 mmhub_v2_3_print_l2_protection_fault_status(struct amdgpu_device *adev,
80 					     uint32_t status)
81 {
82 	uint32_t cid, rw;
83 	const char *mmhub_cid = NULL;
84 
85 	cid = REG_GET_FIELD(status,
86 			    MMVM_L2_PROTECTION_FAULT_STATUS, CID);
87 	rw = REG_GET_FIELD(status,
88 			   MMVM_L2_PROTECTION_FAULT_STATUS, RW);
89 
90 	dev_err(adev->dev,
91 		"MMVM_L2_PROTECTION_FAULT_STATUS:0x%08X\n",
92 		status);
93 	switch (adev->ip_versions[MMHUB_HWIP][0]) {
94 	case IP_VERSION(2, 3, 0):
95 	case IP_VERSION(2, 4, 0):
96 	case IP_VERSION(2, 4, 1):
97 		mmhub_cid = mmhub_client_ids_vangogh[cid][rw];
98 		break;
99 	default:
100 		mmhub_cid = NULL;
101 		break;
102 	}
103 	dev_err(adev->dev, "\t Faulty UTCL2 client ID: %s (0x%x)\n",
104 		mmhub_cid ? mmhub_cid : "unknown", cid);
105 	dev_err(adev->dev, "\t MORE_FAULTS: 0x%lx\n",
106 		REG_GET_FIELD(status,
107 		MMVM_L2_PROTECTION_FAULT_STATUS, MORE_FAULTS));
108 	dev_err(adev->dev, "\t WALKER_ERROR: 0x%lx\n",
109 		REG_GET_FIELD(status,
110 		MMVM_L2_PROTECTION_FAULT_STATUS, WALKER_ERROR));
111 	dev_err(adev->dev, "\t PERMISSION_FAULTS: 0x%lx\n",
112 		REG_GET_FIELD(status,
113 		MMVM_L2_PROTECTION_FAULT_STATUS, PERMISSION_FAULTS));
114 	dev_err(adev->dev, "\t MAPPING_ERROR: 0x%lx\n",
115 		REG_GET_FIELD(status,
116 		MMVM_L2_PROTECTION_FAULT_STATUS, MAPPING_ERROR));
117 	dev_err(adev->dev, "\t RW: 0x%x\n", rw);
118 }
119 
120 static void mmhub_v2_3_setup_vm_pt_regs(struct amdgpu_device *adev,
121 					uint32_t vmid,
122 					uint64_t page_table_base)
123 {
124 	struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_MMHUB_0];
125 
126 	WREG32_SOC15_OFFSET(MMHUB, 0, mmMMVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32,
127 			    hub->ctx_addr_distance * vmid, lower_32_bits(page_table_base));
128 
129 	WREG32_SOC15_OFFSET(MMHUB, 0, mmMMVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32,
130 			    hub->ctx_addr_distance * vmid, upper_32_bits(page_table_base));
131 }
132 
133 static void mmhub_v2_3_init_gart_aperture_regs(struct amdgpu_device *adev)
134 {
135 	uint64_t pt_base = amdgpu_gmc_pd_addr(adev->gart.bo);
136 
137 	mmhub_v2_3_setup_vm_pt_regs(adev, 0, pt_base);
138 
139 	WREG32_SOC15(MMHUB, 0, mmMMVM_CONTEXT0_PAGE_TABLE_START_ADDR_LO32,
140 		     (u32)(adev->gmc.gart_start >> 12));
141 	WREG32_SOC15(MMHUB, 0, mmMMVM_CONTEXT0_PAGE_TABLE_START_ADDR_HI32,
142 		     (u32)(adev->gmc.gart_start >> 44));
143 
144 	WREG32_SOC15(MMHUB, 0, mmMMVM_CONTEXT0_PAGE_TABLE_END_ADDR_LO32,
145 		     (u32)(adev->gmc.gart_end >> 12));
146 	WREG32_SOC15(MMHUB, 0, mmMMVM_CONTEXT0_PAGE_TABLE_END_ADDR_HI32,
147 		     (u32)(adev->gmc.gart_end >> 44));
148 }
149 
150 static void mmhub_v2_3_init_system_aperture_regs(struct amdgpu_device *adev)
151 {
152 	uint64_t value;
153 	uint32_t tmp;
154 
155 	/* Disable AGP. */
156 	WREG32_SOC15(MMHUB, 0, mmMMMC_VM_AGP_BASE, 0);
157 	WREG32_SOC15(MMHUB, 0, mmMMMC_VM_AGP_BOT, adev->gmc.agp_start >> 24);
158 	WREG32_SOC15(MMHUB, 0, mmMMMC_VM_AGP_TOP, adev->gmc.agp_end >> 24);
159 
160 	/* Program the system aperture low logical page number. */
161 	WREG32_SOC15(MMHUB, 0, mmMMMC_VM_SYSTEM_APERTURE_LOW_ADDR,
162 		     min(adev->gmc.fb_start, adev->gmc.agp_start) >> 18);
163 	WREG32_SOC15(MMHUB, 0, mmMMMC_VM_SYSTEM_APERTURE_HIGH_ADDR,
164 		     max(adev->gmc.fb_end, adev->gmc.agp_end) >> 18);
165 
166 	/* Set default page address. */
167 	value = amdgpu_gmc_vram_mc2pa(adev, adev->vram_scratch.gpu_addr);
168 	WREG32_SOC15(MMHUB, 0, mmMMMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR_LSB,
169 		     (u32)(value >> 12));
170 	WREG32_SOC15(MMHUB, 0, mmMMMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR_MSB,
171 		     (u32)(value >> 44));
172 
173 	/* Program "protection fault". */
174 	WREG32_SOC15(MMHUB, 0, mmMMVM_L2_PROTECTION_FAULT_DEFAULT_ADDR_LO32,
175 		     (u32)(adev->dummy_page_addr >> 12));
176 	WREG32_SOC15(MMHUB, 0, mmMMVM_L2_PROTECTION_FAULT_DEFAULT_ADDR_HI32,
177 		     (u32)((u64)adev->dummy_page_addr >> 44));
178 
179 	tmp = RREG32_SOC15(MMHUB, 0, mmMMVM_L2_PROTECTION_FAULT_CNTL2);
180 	tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL2,
181 			    ACTIVE_PAGE_MIGRATION_PTE_READ_RETRY, 1);
182 	WREG32_SOC15(MMHUB, 0, mmMMVM_L2_PROTECTION_FAULT_CNTL2, tmp);
183 }
184 
185 static void mmhub_v2_3_init_tlb_regs(struct amdgpu_device *adev)
186 {
187 	uint32_t tmp;
188 
189 	/* Setup TLB control */
190 	tmp = RREG32_SOC15(MMHUB, 0, mmMMMC_VM_MX_L1_TLB_CNTL);
191 
192 	tmp = REG_SET_FIELD(tmp, MMMC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 1);
193 	tmp = REG_SET_FIELD(tmp, MMMC_VM_MX_L1_TLB_CNTL, SYSTEM_ACCESS_MODE, 3);
194 	tmp = REG_SET_FIELD(tmp, MMMC_VM_MX_L1_TLB_CNTL,
195 			    ENABLE_ADVANCED_DRIVER_MODEL, 1);
196 	tmp = REG_SET_FIELD(tmp, MMMC_VM_MX_L1_TLB_CNTL,
197 			    SYSTEM_APERTURE_UNMAPPED_ACCESS, 0);
198 	tmp = REG_SET_FIELD(tmp, MMMC_VM_MX_L1_TLB_CNTL,
199 			    MTYPE, MTYPE_UC); /* UC, uncached */
200 
201 	WREG32_SOC15(MMHUB, 0, mmMMMC_VM_MX_L1_TLB_CNTL, tmp);
202 }
203 
204 static void mmhub_v2_3_init_cache_regs(struct amdgpu_device *adev)
205 {
206 	uint32_t tmp;
207 
208 	/* Setup L2 cache */
209 	tmp = RREG32_SOC15(MMHUB, 0, mmMMVM_L2_CNTL);
210 	tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL, ENABLE_L2_CACHE, 1);
211 	tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL, ENABLE_L2_FRAGMENT_PROCESSING, 0);
212 	tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL,
213 			    ENABLE_DEFAULT_PAGE_OUT_TO_SYSTEM_MEMORY, 1);
214 	/* XXX for emulation, Refer to closed source code.*/
215 	tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL, L2_PDE0_CACHE_TAG_GENERATION_MODE,
216 			    0);
217 	tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL, PDE_FAULT_CLASSIFICATION, 0);
218 	tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL, CONTEXT1_IDENTITY_ACCESS_MODE, 1);
219 	tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL, IDENTITY_MODE_FRAGMENT_SIZE, 0);
220 	WREG32_SOC15(MMHUB, 0, mmMMVM_L2_CNTL, tmp);
221 
222 	tmp = RREG32_SOC15(MMHUB, 0, mmMMVM_L2_CNTL2);
223 	tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL2, INVALIDATE_ALL_L1_TLBS, 1);
224 	tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL2, INVALIDATE_L2_CACHE, 1);
225 	WREG32_SOC15(MMHUB, 0, mmMMVM_L2_CNTL2, tmp);
226 
227 	tmp = mmMMVM_L2_CNTL3_DEFAULT;
228 	if (adev->gmc.translate_further) {
229 		tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL3, BANK_SELECT, 12);
230 		tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL3,
231 				    L2_CACHE_BIGK_FRAGMENT_SIZE, 9);
232 	} else {
233 		tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL3, BANK_SELECT, 9);
234 		tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL3,
235 				    L2_CACHE_BIGK_FRAGMENT_SIZE, 6);
236 	}
237 	WREG32_SOC15(MMHUB, 0, mmMMVM_L2_CNTL3, tmp);
238 
239 	tmp = mmMMVM_L2_CNTL4_DEFAULT;
240 	tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL4, VMC_TAP_PDE_REQUEST_PHYSICAL, 0);
241 	tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL4, VMC_TAP_PTE_REQUEST_PHYSICAL, 0);
242 	WREG32_SOC15(MMHUB, 0, mmMMVM_L2_CNTL4, tmp);
243 
244 	tmp = mmMMVM_L2_CNTL5_DEFAULT;
245 	tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL5, L2_CACHE_SMALLK_FRAGMENT_SIZE, 0);
246 	WREG32_SOC15(MMHUB, 0, mmMMVM_L2_CNTL5, tmp);
247 }
248 
249 static void mmhub_v2_3_enable_system_domain(struct amdgpu_device *adev)
250 {
251 	uint32_t tmp;
252 
253 	tmp = RREG32_SOC15(MMHUB, 0, mmMMVM_CONTEXT0_CNTL);
254 	tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT0_CNTL, ENABLE_CONTEXT, 1);
255 	tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT0_CNTL, PAGE_TABLE_DEPTH, 0);
256 	tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT0_CNTL,
257 			    RETRY_PERMISSION_OR_INVALID_PAGE_FAULT, 0);
258 	WREG32_SOC15(MMHUB, 0, mmMMVM_CONTEXT0_CNTL, tmp);
259 }
260 
261 static void mmhub_v2_3_disable_identity_aperture(struct amdgpu_device *adev)
262 {
263 	WREG32_SOC15(MMHUB, 0,
264 		     mmMMVM_L2_CONTEXT1_IDENTITY_APERTURE_LOW_ADDR_LO32,
265 		     0xFFFFFFFF);
266 	WREG32_SOC15(MMHUB, 0,
267 		     mmMMVM_L2_CONTEXT1_IDENTITY_APERTURE_LOW_ADDR_HI32,
268 		     0x0000000F);
269 
270 	WREG32_SOC15(MMHUB, 0,
271 		     mmMMVM_L2_CONTEXT1_IDENTITY_APERTURE_HIGH_ADDR_LO32, 0);
272 	WREG32_SOC15(MMHUB, 0,
273 		     mmMMVM_L2_CONTEXT1_IDENTITY_APERTURE_HIGH_ADDR_HI32, 0);
274 
275 	WREG32_SOC15(MMHUB, 0, mmMMVM_L2_CONTEXT_IDENTITY_PHYSICAL_OFFSET_LO32,
276 		     0);
277 	WREG32_SOC15(MMHUB, 0, mmMMVM_L2_CONTEXT_IDENTITY_PHYSICAL_OFFSET_HI32,
278 		     0);
279 }
280 
281 static void mmhub_v2_3_setup_vmid_config(struct amdgpu_device *adev)
282 {
283 	struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_MMHUB_0];
284 	int i;
285 	uint32_t tmp;
286 
287 	for (i = 0; i <= 14; i++) {
288 		tmp = RREG32_SOC15_OFFSET(MMHUB, 0, mmMMVM_CONTEXT1_CNTL, i);
289 		tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL, ENABLE_CONTEXT, 1);
290 		tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL, PAGE_TABLE_DEPTH,
291 				    adev->vm_manager.num_level);
292 		tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL,
293 				    RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
294 		tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL,
295 				    DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT,
296 				    1);
297 		tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL,
298 				    PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
299 		tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL,
300 				    VALID_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
301 		tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL,
302 				    READ_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
303 		tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL,
304 				    WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
305 		tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL,
306 				    EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
307 		tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL,
308 				    PAGE_TABLE_BLOCK_SIZE,
309 				    adev->vm_manager.block_size - 9);
310 		/* Send no-retry XNACK on fault to suppress VM fault storm. */
311 		tmp = REG_SET_FIELD(tmp, MMVM_CONTEXT1_CNTL,
312 				    RETRY_PERMISSION_OR_INVALID_PAGE_FAULT,
313 				    !adev->gmc.noretry);
314 		WREG32_SOC15_OFFSET(MMHUB, 0, mmMMVM_CONTEXT1_CNTL,
315 				    i * hub->ctx_distance, tmp);
316 		WREG32_SOC15_OFFSET(MMHUB, 0, mmMMVM_CONTEXT1_PAGE_TABLE_START_ADDR_LO32,
317 				    i * hub->ctx_addr_distance, 0);
318 		WREG32_SOC15_OFFSET(MMHUB, 0, mmMMVM_CONTEXT1_PAGE_TABLE_START_ADDR_HI32,
319 				    i * hub->ctx_addr_distance, 0);
320 		WREG32_SOC15_OFFSET(MMHUB, 0, mmMMVM_CONTEXT1_PAGE_TABLE_END_ADDR_LO32,
321 				    i * hub->ctx_addr_distance,
322 				    lower_32_bits(adev->vm_manager.max_pfn - 1));
323 		WREG32_SOC15_OFFSET(MMHUB, 0, mmMMVM_CONTEXT1_PAGE_TABLE_END_ADDR_HI32,
324 				    i * hub->ctx_addr_distance,
325 				    upper_32_bits(adev->vm_manager.max_pfn - 1));
326 	}
327 
328 	hub->vm_cntx_cntl = tmp;
329 }
330 
331 static void mmhub_v2_3_program_invalidation(struct amdgpu_device *adev)
332 {
333 	struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_MMHUB_0];
334 	unsigned i;
335 
336 	for (i = 0; i < 18; ++i) {
337 		WREG32_SOC15_OFFSET(MMHUB, 0,
338 				    mmMMVM_INVALIDATE_ENG0_ADDR_RANGE_LO32,
339 				    i * hub->eng_addr_distance, 0xffffffff);
340 		WREG32_SOC15_OFFSET(MMHUB, 0,
341 				    mmMMVM_INVALIDATE_ENG0_ADDR_RANGE_HI32,
342 				    i * hub->eng_addr_distance, 0x1f);
343 	}
344 }
345 
346 static int mmhub_v2_3_gart_enable(struct amdgpu_device *adev)
347 {
348 	if (amdgpu_sriov_vf(adev)) {
349 		/*
350 		 * MMMC_VM_FB_LOCATION_BASE/TOP is NULL for VF, becuase they are
351 		 * VF copy registers so vbios post doesn't program them, for
352 		 * SRIOV driver need to program them
353 		 */
354 		WREG32_SOC15(MMHUB, 0, mmMMMC_VM_FB_LOCATION_BASE,
355 			     adev->gmc.vram_start >> 24);
356 		WREG32_SOC15(MMHUB, 0, mmMMMC_VM_FB_LOCATION_TOP,
357 			     adev->gmc.vram_end >> 24);
358 	}
359 
360 	/* GART Enable. */
361 	mmhub_v2_3_init_gart_aperture_regs(adev);
362 	mmhub_v2_3_init_system_aperture_regs(adev);
363 	mmhub_v2_3_init_tlb_regs(adev);
364 	mmhub_v2_3_init_cache_regs(adev);
365 
366 	mmhub_v2_3_enable_system_domain(adev);
367 	mmhub_v2_3_disable_identity_aperture(adev);
368 	mmhub_v2_3_setup_vmid_config(adev);
369 	mmhub_v2_3_program_invalidation(adev);
370 
371 	return 0;
372 }
373 
374 static void mmhub_v2_3_gart_disable(struct amdgpu_device *adev)
375 {
376 	struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_MMHUB_0];
377 	u32 tmp;
378 	u32 i;
379 
380 	/* Disable all tables */
381 	for (i = 0; i < AMDGPU_NUM_VMID; i++)
382 		WREG32_SOC15_OFFSET(MMHUB, 0, mmMMVM_CONTEXT0_CNTL,
383 				    i * hub->ctx_distance, 0);
384 
385 	/* Setup TLB control */
386 	tmp = RREG32_SOC15(MMHUB, 0, mmMMMC_VM_MX_L1_TLB_CNTL);
387 	tmp = REG_SET_FIELD(tmp, MMMC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 0);
388 	tmp = REG_SET_FIELD(tmp, MMMC_VM_MX_L1_TLB_CNTL,
389 			    ENABLE_ADVANCED_DRIVER_MODEL, 0);
390 	WREG32_SOC15(MMHUB, 0, mmMMMC_VM_MX_L1_TLB_CNTL, tmp);
391 
392 	/* Setup L2 cache */
393 	tmp = RREG32_SOC15(MMHUB, 0, mmMMVM_L2_CNTL);
394 	tmp = REG_SET_FIELD(tmp, MMVM_L2_CNTL, ENABLE_L2_CACHE, 0);
395 	WREG32_SOC15(MMHUB, 0, mmMMVM_L2_CNTL, tmp);
396 	WREG32_SOC15(MMHUB, 0, mmMMVM_L2_CNTL3, 0);
397 }
398 
399 /**
400  * mmhub_v2_3_set_fault_enable_default - update GART/VM fault handling
401  *
402  * @adev: amdgpu_device pointer
403  * @value: true redirects VM faults to the default page
404  */
405 static void mmhub_v2_3_set_fault_enable_default(struct amdgpu_device *adev,
406 						bool value)
407 {
408 	u32 tmp;
409 	tmp = RREG32_SOC15(MMHUB, 0, mmMMVM_L2_PROTECTION_FAULT_CNTL);
410 	tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
411 			    RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
412 	tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
413 			    PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, value);
414 	tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
415 			    PDE1_PROTECTION_FAULT_ENABLE_DEFAULT, value);
416 	tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
417 			    PDE2_PROTECTION_FAULT_ENABLE_DEFAULT, value);
418 	tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
419 			    TRANSLATE_FURTHER_PROTECTION_FAULT_ENABLE_DEFAULT,
420 			    value);
421 	tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
422 			    NACK_PROTECTION_FAULT_ENABLE_DEFAULT, value);
423 	tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
424 			    DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
425 	tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
426 			    VALID_PROTECTION_FAULT_ENABLE_DEFAULT, value);
427 	tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
428 			    READ_PROTECTION_FAULT_ENABLE_DEFAULT, value);
429 	tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
430 			    WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
431 	tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
432 			    EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
433 	if (!value) {
434 		tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
435 				CRASH_ON_NO_RETRY_FAULT, 1);
436 		tmp = REG_SET_FIELD(tmp, MMVM_L2_PROTECTION_FAULT_CNTL,
437 				CRASH_ON_RETRY_FAULT, 1);
438 	}
439 	WREG32_SOC15(MMHUB, 0, mmMMVM_L2_PROTECTION_FAULT_CNTL, tmp);
440 }
441 
442 static const struct amdgpu_vmhub_funcs mmhub_v2_3_vmhub_funcs = {
443 	.print_l2_protection_fault_status = mmhub_v2_3_print_l2_protection_fault_status,
444 	.get_invalidate_req = mmhub_v2_3_get_invalidate_req,
445 };
446 
447 static void mmhub_v2_3_init(struct amdgpu_device *adev)
448 {
449 	struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_MMHUB_0];
450 
451 	hub->ctx0_ptb_addr_lo32 =
452 		SOC15_REG_OFFSET(MMHUB, 0,
453 				 mmMMVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32);
454 	hub->ctx0_ptb_addr_hi32 =
455 		SOC15_REG_OFFSET(MMHUB, 0,
456 				 mmMMVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32);
457 	hub->vm_inv_eng0_sem =
458 		SOC15_REG_OFFSET(MMHUB, 0,
459 				 mmMMVM_INVALIDATE_ENG0_SEM);
460 	hub->vm_inv_eng0_req =
461 		SOC15_REG_OFFSET(MMHUB, 0, mmMMVM_INVALIDATE_ENG0_REQ);
462 	hub->vm_inv_eng0_ack =
463 		SOC15_REG_OFFSET(MMHUB, 0, mmMMVM_INVALIDATE_ENG0_ACK);
464 	hub->vm_context0_cntl =
465 		SOC15_REG_OFFSET(MMHUB, 0, mmMMVM_CONTEXT0_CNTL);
466 	hub->vm_l2_pro_fault_status =
467 		SOC15_REG_OFFSET(MMHUB, 0, mmMMVM_L2_PROTECTION_FAULT_STATUS);
468 	hub->vm_l2_pro_fault_cntl =
469 		SOC15_REG_OFFSET(MMHUB, 0, mmMMVM_L2_PROTECTION_FAULT_CNTL);
470 
471 	hub->ctx_distance = mmMMVM_CONTEXT1_CNTL - mmMMVM_CONTEXT0_CNTL;
472 	hub->ctx_addr_distance = mmMMVM_CONTEXT1_PAGE_TABLE_BASE_ADDR_LO32 -
473 		mmMMVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32;
474 	hub->eng_distance = mmMMVM_INVALIDATE_ENG1_REQ -
475 		mmMMVM_INVALIDATE_ENG0_REQ;
476 	hub->eng_addr_distance = mmMMVM_INVALIDATE_ENG1_ADDR_RANGE_LO32 -
477 		mmMMVM_INVALIDATE_ENG0_ADDR_RANGE_LO32;
478 
479 	hub->vm_cntx_cntl_vm_fault = MMVM_CONTEXT1_CNTL__RANGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
480 		MMVM_CONTEXT1_CNTL__DUMMY_PAGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
481 		MMVM_CONTEXT1_CNTL__PDE0_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
482 		MMVM_CONTEXT1_CNTL__VALID_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
483 		MMVM_CONTEXT1_CNTL__READ_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
484 		MMVM_CONTEXT1_CNTL__WRITE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
485 		MMVM_CONTEXT1_CNTL__EXECUTE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK;
486 
487 	hub->vmhub_funcs = &mmhub_v2_3_vmhub_funcs;
488 }
489 
490 static void
491 mmhub_v2_3_update_medium_grain_clock_gating(struct amdgpu_device *adev,
492 					    bool enable)
493 {
494 	uint32_t def, data, def1, data1;
495 
496 	def  = data  = RREG32_SOC15(MMHUB, 0, mmMM_ATC_L2_CGTT_CLK_CTRL);
497 	def1 = data1 = RREG32_SOC15(MMHUB, 0, mmDAGB0_CNTL_MISC2);
498 
499 	if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_MGCG)) {
500 		data &= ~MM_ATC_L2_CGTT_CLK_CTRL__SOFT_OVERRIDE_MASK;
501 		data1 &= ~(DAGB0_CNTL_MISC2__DISABLE_WRREQ_CG_MASK |
502 		           DAGB0_CNTL_MISC2__DISABLE_WRRET_CG_MASK |
503 		           DAGB0_CNTL_MISC2__DISABLE_RDREQ_CG_MASK |
504 		           DAGB0_CNTL_MISC2__DISABLE_RDRET_CG_MASK |
505 		           DAGB0_CNTL_MISC2__DISABLE_TLBWR_CG_MASK |
506 		           DAGB0_CNTL_MISC2__DISABLE_TLBRD_CG_MASK);
507 
508 	} else {
509 		data |= MM_ATC_L2_CGTT_CLK_CTRL__SOFT_OVERRIDE_MASK;
510 		data1 |= (DAGB0_CNTL_MISC2__DISABLE_WRREQ_CG_MASK |
511 			  DAGB0_CNTL_MISC2__DISABLE_WRRET_CG_MASK |
512 			  DAGB0_CNTL_MISC2__DISABLE_RDREQ_CG_MASK |
513 			  DAGB0_CNTL_MISC2__DISABLE_RDRET_CG_MASK |
514 			  DAGB0_CNTL_MISC2__DISABLE_TLBWR_CG_MASK |
515 			  DAGB0_CNTL_MISC2__DISABLE_TLBRD_CG_MASK);
516 	}
517 
518 	if (def != data)
519 		WREG32_SOC15(MMHUB, 0, mmMM_ATC_L2_CGTT_CLK_CTRL, data);
520 	if (def1 != data1)
521 		WREG32_SOC15(MMHUB, 0, mmDAGB0_CNTL_MISC2, data1);
522 }
523 
524 static void
525 mmhub_v2_3_update_medium_grain_light_sleep(struct amdgpu_device *adev,
526 					   bool enable)
527 {
528 	uint32_t def, data, def1, data1, def2, data2;
529 
530 	def  = data  = RREG32_SOC15(MMHUB, 0, mmMM_ATC_L2_CGTT_CLK_CTRL);
531 	def1 = data1 = RREG32_SOC15(MMHUB, 0, mmDAGB0_WR_CGTT_CLK_CTRL);
532 	def2 = data2 = RREG32_SOC15(MMHUB, 0, mmDAGB0_RD_CGTT_CLK_CTRL);
533 
534 	if (enable && (adev->cg_flags & AMD_CG_SUPPORT_MC_LS)) {
535 		data &= ~MM_ATC_L2_CGTT_CLK_CTRL__MGLS_OVERRIDE_MASK;
536 		data1 &= ~(DAGB0_WR_CGTT_CLK_CTRL__LS_OVERRIDE_MASK |
537 			DAGB0_WR_CGTT_CLK_CTRL__LS_OVERRIDE_WRITE_MASK |
538 			DAGB0_WR_CGTT_CLK_CTRL__LS_OVERRIDE_READ_MASK |
539 			DAGB0_WR_CGTT_CLK_CTRL__LS_OVERRIDE_RETURN_MASK |
540 			DAGB0_WR_CGTT_CLK_CTRL__LS_OVERRIDE_REGISTER_MASK);
541 		data2 &= ~(DAGB0_RD_CGTT_CLK_CTRL__LS_OVERRIDE_MASK |
542 			DAGB0_RD_CGTT_CLK_CTRL__LS_OVERRIDE_WRITE_MASK |
543 			DAGB0_RD_CGTT_CLK_CTRL__LS_OVERRIDE_READ_MASK |
544 			DAGB0_RD_CGTT_CLK_CTRL__LS_OVERRIDE_RETURN_MASK |
545 			DAGB0_RD_CGTT_CLK_CTRL__LS_OVERRIDE_REGISTER_MASK);
546 	} else {
547 		data |= MM_ATC_L2_CGTT_CLK_CTRL__MGLS_OVERRIDE_MASK;
548 		data1 |= (DAGB0_WR_CGTT_CLK_CTRL__LS_OVERRIDE_MASK |
549 			DAGB0_WR_CGTT_CLK_CTRL__LS_OVERRIDE_WRITE_MASK |
550 			DAGB0_WR_CGTT_CLK_CTRL__LS_OVERRIDE_READ_MASK |
551 			DAGB0_WR_CGTT_CLK_CTRL__LS_OVERRIDE_RETURN_MASK |
552 			DAGB0_WR_CGTT_CLK_CTRL__LS_OVERRIDE_REGISTER_MASK);
553 		data2 |= (DAGB0_RD_CGTT_CLK_CTRL__LS_OVERRIDE_MASK |
554 			DAGB0_RD_CGTT_CLK_CTRL__LS_OVERRIDE_WRITE_MASK |
555 			DAGB0_RD_CGTT_CLK_CTRL__LS_OVERRIDE_READ_MASK |
556 			DAGB0_RD_CGTT_CLK_CTRL__LS_OVERRIDE_RETURN_MASK |
557 			DAGB0_RD_CGTT_CLK_CTRL__LS_OVERRIDE_REGISTER_MASK);
558 	}
559 
560 	if (def != data)
561 		WREG32_SOC15(MMHUB, 0, mmMM_ATC_L2_CGTT_CLK_CTRL, data);
562 	if (def1 != data1)
563 		WREG32_SOC15(MMHUB, 0, mmDAGB0_WR_CGTT_CLK_CTRL, data1);
564 	if (def2 != data2)
565 		WREG32_SOC15(MMHUB, 0, mmDAGB0_RD_CGTT_CLK_CTRL, data2);
566 }
567 
568 static int mmhub_v2_3_set_clockgating(struct amdgpu_device *adev,
569 				      enum amd_clockgating_state state)
570 {
571 	if (amdgpu_sriov_vf(adev))
572 		return 0;
573 
574 	mmhub_v2_3_update_medium_grain_clock_gating(adev,
575 				state == AMD_CG_STATE_GATE);
576 	mmhub_v2_3_update_medium_grain_light_sleep(adev,
577 				state == AMD_CG_STATE_GATE);
578 
579 	return 0;
580 }
581 
582 static void mmhub_v2_3_get_clockgating(struct amdgpu_device *adev, u64 *flags)
583 {
584 	int data, data1, data2, data3;
585 
586 	if (amdgpu_sriov_vf(adev))
587 		*flags = 0;
588 
589 	data = RREG32_SOC15(MMHUB, 0, mmDAGB0_CNTL_MISC2);
590 	data1  = RREG32_SOC15(MMHUB, 0, mmMM_ATC_L2_CGTT_CLK_CTRL);
591 	data2 = RREG32_SOC15(MMHUB, 0, mmDAGB0_WR_CGTT_CLK_CTRL);
592 	data3 = RREG32_SOC15(MMHUB, 0, mmDAGB0_RD_CGTT_CLK_CTRL);
593 
594 	/* AMD_CG_SUPPORT_MC_MGCG */
595 	if (!(data & (DAGB0_CNTL_MISC2__DISABLE_WRREQ_CG_MASK |
596 		       DAGB0_CNTL_MISC2__DISABLE_WRRET_CG_MASK |
597 		       DAGB0_CNTL_MISC2__DISABLE_RDREQ_CG_MASK |
598 		       DAGB0_CNTL_MISC2__DISABLE_RDRET_CG_MASK |
599 		       DAGB0_CNTL_MISC2__DISABLE_TLBWR_CG_MASK |
600 		       DAGB0_CNTL_MISC2__DISABLE_TLBRD_CG_MASK))
601 		&& !(data1 & MM_ATC_L2_CGTT_CLK_CTRL__SOFT_OVERRIDE_MASK)) {
602 			*flags |= AMD_CG_SUPPORT_MC_MGCG;
603 	}
604 
605 	/* AMD_CG_SUPPORT_MC_LS */
606 	if (!(data1 & MM_ATC_L2_CGTT_CLK_CTRL__MGLS_OVERRIDE_MASK)
607 		&& !(data2 & (DAGB0_WR_CGTT_CLK_CTRL__LS_OVERRIDE_MASK |
608 				DAGB0_WR_CGTT_CLK_CTRL__LS_OVERRIDE_WRITE_MASK |
609 				DAGB0_WR_CGTT_CLK_CTRL__LS_OVERRIDE_READ_MASK |
610 				DAGB0_WR_CGTT_CLK_CTRL__LS_OVERRIDE_RETURN_MASK |
611 				DAGB0_WR_CGTT_CLK_CTRL__LS_OVERRIDE_REGISTER_MASK))
612 		&& !(data3 & (DAGB0_RD_CGTT_CLK_CTRL__LS_OVERRIDE_MASK |
613 				DAGB0_RD_CGTT_CLK_CTRL__LS_OVERRIDE_WRITE_MASK |
614 				DAGB0_RD_CGTT_CLK_CTRL__LS_OVERRIDE_READ_MASK |
615 				DAGB0_RD_CGTT_CLK_CTRL__LS_OVERRIDE_RETURN_MASK |
616 				DAGB0_RD_CGTT_CLK_CTRL__LS_OVERRIDE_REGISTER_MASK)))
617 		*flags |= AMD_CG_SUPPORT_MC_LS;
618 }
619 
620 const struct amdgpu_mmhub_funcs mmhub_v2_3_funcs = {
621 	.init = mmhub_v2_3_init,
622 	.gart_enable = mmhub_v2_3_gart_enable,
623 	.set_fault_enable_default = mmhub_v2_3_set_fault_enable_default,
624 	.gart_disable = mmhub_v2_3_gart_disable,
625 	.set_clockgating = mmhub_v2_3_set_clockgating,
626 	.get_clockgating = mmhub_v2_3_get_clockgating,
627 	.setup_vm_pt_regs = mmhub_v2_3_setup_vm_pt_regs,
628 };
629