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 "gfxhub_v2_0.h"
26 
27 #include "gc/gc_10_1_0_offset.h"
28 #include "gc/gc_10_1_0_sh_mask.h"
29 #include "gc/gc_10_1_0_default.h"
30 #include "navi10_enum.h"
31 
32 #include "soc15_common.h"
33 
34 static const char *gfxhub_client_ids[] = {
35 	"CB/DB",
36 	"Reserved",
37 	"GE1",
38 	"GE2",
39 	"CPF",
40 	"CPC",
41 	"CPG",
42 	"RLC",
43 	"TCP",
44 	"SQC (inst)",
45 	"SQC (data)",
46 	"SQG",
47 	"Reserved",
48 	"SDMA0",
49 	"SDMA1",
50 	"GCR",
51 	"SDMA2",
52 	"SDMA3",
53 };
54 
55 static uint32_t gfxhub_v2_0_get_invalidate_req(unsigned int vmid,
56 					       uint32_t flush_type)
57 {
58 	u32 req = 0;
59 
60 	/* invalidate using legacy mode on vmid*/
61 	req = REG_SET_FIELD(req, GCVM_INVALIDATE_ENG0_REQ,
62 			    PER_VMID_INVALIDATE_REQ, 1 << vmid);
63 	req = REG_SET_FIELD(req, GCVM_INVALIDATE_ENG0_REQ, FLUSH_TYPE, flush_type);
64 	req = REG_SET_FIELD(req, GCVM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PTES, 1);
65 	req = REG_SET_FIELD(req, GCVM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PDE0, 1);
66 	req = REG_SET_FIELD(req, GCVM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PDE1, 1);
67 	req = REG_SET_FIELD(req, GCVM_INVALIDATE_ENG0_REQ, INVALIDATE_L2_PDE2, 1);
68 	req = REG_SET_FIELD(req, GCVM_INVALIDATE_ENG0_REQ, INVALIDATE_L1_PTES, 1);
69 	req = REG_SET_FIELD(req, GCVM_INVALIDATE_ENG0_REQ,
70 			    CLEAR_PROTECTION_FAULT_STATUS_ADDR,	0);
71 
72 	return req;
73 }
74 
75 static void
76 gfxhub_v2_0_print_l2_protection_fault_status(struct amdgpu_device *adev,
77 					     uint32_t status)
78 {
79 	u32 cid = REG_GET_FIELD(status,
80 				GCVM_L2_PROTECTION_FAULT_STATUS, CID);
81 
82 	dev_err(adev->dev,
83 		"GCVM_L2_PROTECTION_FAULT_STATUS:0x%08X\n",
84 		status);
85 	dev_err(adev->dev, "\t Faulty UTCL2 client ID: %s (0x%x)\n",
86 		cid >= ARRAY_SIZE(gfxhub_client_ids) ? "unknown" : gfxhub_client_ids[cid],
87 		cid);
88 	dev_err(adev->dev, "\t MORE_FAULTS: 0x%lx\n",
89 		REG_GET_FIELD(status,
90 		GCVM_L2_PROTECTION_FAULT_STATUS, MORE_FAULTS));
91 	dev_err(adev->dev, "\t WALKER_ERROR: 0x%lx\n",
92 		REG_GET_FIELD(status,
93 		GCVM_L2_PROTECTION_FAULT_STATUS, WALKER_ERROR));
94 	dev_err(adev->dev, "\t PERMISSION_FAULTS: 0x%lx\n",
95 		REG_GET_FIELD(status,
96 		GCVM_L2_PROTECTION_FAULT_STATUS, PERMISSION_FAULTS));
97 	dev_err(adev->dev, "\t MAPPING_ERROR: 0x%lx\n",
98 		REG_GET_FIELD(status,
99 		GCVM_L2_PROTECTION_FAULT_STATUS, MAPPING_ERROR));
100 	dev_err(adev->dev, "\t RW: 0x%lx\n",
101 		REG_GET_FIELD(status,
102 		GCVM_L2_PROTECTION_FAULT_STATUS, RW));
103 }
104 
105 static u64 gfxhub_v2_0_get_fb_location(struct amdgpu_device *adev)
106 {
107 	u64 base = RREG32_SOC15(GC, 0, mmGCMC_VM_FB_LOCATION_BASE);
108 
109 	base &= GCMC_VM_FB_LOCATION_BASE__FB_BASE_MASK;
110 	base <<= 24;
111 
112 	return base;
113 }
114 
115 static u64 gfxhub_v2_0_get_mc_fb_offset(struct amdgpu_device *adev)
116 {
117 	return (u64)RREG32_SOC15(GC, 0, mmGCMC_VM_FB_OFFSET) << 24;
118 }
119 
120 static void gfxhub_v2_0_setup_vm_pt_regs(struct amdgpu_device *adev, uint32_t vmid,
121 				uint64_t page_table_base)
122 {
123 	struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_GFXHUB_0];
124 
125 	WREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32,
126 			    hub->ctx_addr_distance * vmid,
127 			    lower_32_bits(page_table_base));
128 
129 	WREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32,
130 			    hub->ctx_addr_distance * vmid,
131 			    upper_32_bits(page_table_base));
132 }
133 
134 static void gfxhub_v2_0_init_gart_aperture_regs(struct amdgpu_device *adev)
135 {
136 	uint64_t pt_base = amdgpu_gmc_pd_addr(adev->gart.bo);
137 
138 	gfxhub_v2_0_setup_vm_pt_regs(adev, 0, pt_base);
139 
140 	WREG32_SOC15(GC, 0, mmGCVM_CONTEXT0_PAGE_TABLE_START_ADDR_LO32,
141 		     (u32)(adev->gmc.gart_start >> 12));
142 	WREG32_SOC15(GC, 0, mmGCVM_CONTEXT0_PAGE_TABLE_START_ADDR_HI32,
143 		     (u32)(adev->gmc.gart_start >> 44));
144 
145 	WREG32_SOC15(GC, 0, mmGCVM_CONTEXT0_PAGE_TABLE_END_ADDR_LO32,
146 		     (u32)(adev->gmc.gart_end >> 12));
147 	WREG32_SOC15(GC, 0, mmGCVM_CONTEXT0_PAGE_TABLE_END_ADDR_HI32,
148 		     (u32)(adev->gmc.gart_end >> 44));
149 }
150 
151 static void gfxhub_v2_0_init_system_aperture_regs(struct amdgpu_device *adev)
152 {
153 	uint64_t value;
154 
155 	if (!amdgpu_sriov_vf(adev)) {
156 		/* Program the AGP BAR */
157 		WREG32_SOC15(GC, 0, mmGCMC_VM_AGP_BASE, 0);
158 		WREG32_SOC15(GC, 0, mmGCMC_VM_AGP_BOT, adev->gmc.agp_start >> 24);
159 		WREG32_SOC15(GC, 0, mmGCMC_VM_AGP_TOP, adev->gmc.agp_end >> 24);
160 
161 		/* Program the system aperture low logical page number. */
162 		WREG32_SOC15(GC, 0, mmGCMC_VM_SYSTEM_APERTURE_LOW_ADDR,
163 			     min(adev->gmc.fb_start, adev->gmc.agp_start) >> 18);
164 		WREG32_SOC15(GC, 0, mmGCMC_VM_SYSTEM_APERTURE_HIGH_ADDR,
165 			     max(adev->gmc.fb_end, adev->gmc.agp_end) >> 18);
166 
167 		/* Set default page address. */
168 		value = amdgpu_gmc_vram_mc2pa(adev, adev->vram_scratch.gpu_addr);
169 		WREG32_SOC15(GC, 0, mmGCMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR_LSB,
170 			     (u32)(value >> 12));
171 		WREG32_SOC15(GC, 0, mmGCMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR_MSB,
172 			     (u32)(value >> 44));
173 	}
174 
175 	/* Program "protection fault". */
176 	WREG32_SOC15(GC, 0, mmGCVM_L2_PROTECTION_FAULT_DEFAULT_ADDR_LO32,
177 		     (u32)(adev->dummy_page_addr >> 12));
178 	WREG32_SOC15(GC, 0, mmGCVM_L2_PROTECTION_FAULT_DEFAULT_ADDR_HI32,
179 		     (u32)((u64)adev->dummy_page_addr >> 44));
180 
181 	WREG32_FIELD15(GC, 0, GCVM_L2_PROTECTION_FAULT_CNTL2,
182 		       ACTIVE_PAGE_MIGRATION_PTE_READ_RETRY, 1);
183 }
184 
185 
186 static void gfxhub_v2_0_init_tlb_regs(struct amdgpu_device *adev)
187 {
188 	uint32_t tmp;
189 
190 	/* Setup TLB control */
191 	tmp = RREG32_SOC15(GC, 0, mmGCMC_VM_MX_L1_TLB_CNTL);
192 
193 	tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 1);
194 	tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL, SYSTEM_ACCESS_MODE, 3);
195 	tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL,
196 			    ENABLE_ADVANCED_DRIVER_MODEL, 1);
197 	tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL,
198 			    SYSTEM_APERTURE_UNMAPPED_ACCESS, 0);
199 	tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL,
200 			    MTYPE, MTYPE_UC); /* UC, uncached */
201 
202 	WREG32_SOC15(GC, 0, mmGCMC_VM_MX_L1_TLB_CNTL, tmp);
203 }
204 
205 static void gfxhub_v2_0_init_cache_regs(struct amdgpu_device *adev)
206 {
207 	uint32_t tmp;
208 
209 	/* These regs are not accessible for VF, PF will program these in SRIOV */
210 	if (amdgpu_sriov_vf(adev))
211 		return;
212 
213 	/* Setup L2 cache */
214 	tmp = RREG32_SOC15(GC, 0, mmGCVM_L2_CNTL);
215 	tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL, ENABLE_L2_CACHE, 1);
216 	tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL, ENABLE_L2_FRAGMENT_PROCESSING, 0);
217 	tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL,
218 			    ENABLE_DEFAULT_PAGE_OUT_TO_SYSTEM_MEMORY, 1);
219 	/* XXX for emulation, Refer to closed source code.*/
220 	tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL,
221 			    L2_PDE0_CACHE_TAG_GENERATION_MODE, 0);
222 	tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL, PDE_FAULT_CLASSIFICATION, 0);
223 	tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL, CONTEXT1_IDENTITY_ACCESS_MODE, 1);
224 	tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL, IDENTITY_MODE_FRAGMENT_SIZE, 0);
225 	WREG32_SOC15(GC, 0, mmGCVM_L2_CNTL, tmp);
226 
227 	tmp = RREG32_SOC15(GC, 0, mmGCVM_L2_CNTL2);
228 	tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL2, INVALIDATE_ALL_L1_TLBS, 1);
229 	tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL2, INVALIDATE_L2_CACHE, 1);
230 	WREG32_SOC15(GC, 0, mmGCVM_L2_CNTL2, tmp);
231 
232 	tmp = mmGCVM_L2_CNTL3_DEFAULT;
233 	if (adev->gmc.translate_further) {
234 		tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL3, BANK_SELECT, 12);
235 		tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL3,
236 				    L2_CACHE_BIGK_FRAGMENT_SIZE, 9);
237 	} else {
238 		tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL3, BANK_SELECT, 9);
239 		tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL3,
240 				    L2_CACHE_BIGK_FRAGMENT_SIZE, 6);
241 	}
242 	WREG32_SOC15(GC, 0, mmGCVM_L2_CNTL3, tmp);
243 
244 	tmp = mmGCVM_L2_CNTL4_DEFAULT;
245 	tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL4, VMC_TAP_PDE_REQUEST_PHYSICAL, 0);
246 	tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL4, VMC_TAP_PTE_REQUEST_PHYSICAL, 0);
247 	WREG32_SOC15(GC, 0, mmGCVM_L2_CNTL4, tmp);
248 
249 	tmp = mmGCVM_L2_CNTL5_DEFAULT;
250 	tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL5, L2_CACHE_SMALLK_FRAGMENT_SIZE, 0);
251 	WREG32_SOC15(GC, 0, mmGCVM_L2_CNTL5, tmp);
252 }
253 
254 static void gfxhub_v2_0_enable_system_domain(struct amdgpu_device *adev)
255 {
256 	uint32_t tmp;
257 
258 	tmp = RREG32_SOC15(GC, 0, mmGCVM_CONTEXT0_CNTL);
259 	tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT0_CNTL, ENABLE_CONTEXT, 1);
260 	tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT0_CNTL, PAGE_TABLE_DEPTH, 0);
261 	tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT0_CNTL,
262 			    RETRY_PERMISSION_OR_INVALID_PAGE_FAULT, 0);
263 	WREG32_SOC15(GC, 0, mmGCVM_CONTEXT0_CNTL, tmp);
264 }
265 
266 static void gfxhub_v2_0_disable_identity_aperture(struct amdgpu_device *adev)
267 {
268 	WREG32_SOC15(GC, 0, mmGCVM_L2_CONTEXT1_IDENTITY_APERTURE_LOW_ADDR_LO32,
269 		     0xFFFFFFFF);
270 	WREG32_SOC15(GC, 0, mmGCVM_L2_CONTEXT1_IDENTITY_APERTURE_LOW_ADDR_HI32,
271 		     0x0000000F);
272 
273 	WREG32_SOC15(GC, 0, mmGCVM_L2_CONTEXT1_IDENTITY_APERTURE_HIGH_ADDR_LO32,
274 		     0);
275 	WREG32_SOC15(GC, 0, mmGCVM_L2_CONTEXT1_IDENTITY_APERTURE_HIGH_ADDR_HI32,
276 		     0);
277 
278 	WREG32_SOC15(GC, 0, mmGCVM_L2_CONTEXT_IDENTITY_PHYSICAL_OFFSET_LO32, 0);
279 	WREG32_SOC15(GC, 0, mmGCVM_L2_CONTEXT_IDENTITY_PHYSICAL_OFFSET_HI32, 0);
280 
281 }
282 
283 static void gfxhub_v2_0_setup_vmid_config(struct amdgpu_device *adev)
284 {
285 	struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_GFXHUB_0];
286 	int i;
287 	uint32_t tmp;
288 
289 	for (i = 0; i <= 14; i++) {
290 		tmp = RREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT1_CNTL, i);
291 		tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL, ENABLE_CONTEXT, 1);
292 		tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL, PAGE_TABLE_DEPTH,
293 				    adev->vm_manager.num_level);
294 		tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,
295 				RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
296 		tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,
297 				DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
298 		tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,
299 				PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
300 		tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,
301 				VALID_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
302 		tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,
303 				READ_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
304 		tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,
305 				WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
306 		tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,
307 				EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
308 		tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,
309 				PAGE_TABLE_BLOCK_SIZE,
310 				adev->vm_manager.block_size - 9);
311 		/* Send no-retry XNACK on fault to suppress VM fault storm. */
312 		tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,
313 				    RETRY_PERMISSION_OR_INVALID_PAGE_FAULT,
314 				    !adev->gmc.noretry);
315 		WREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT1_CNTL,
316 				    i * hub->ctx_distance, tmp);
317 		WREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT1_PAGE_TABLE_START_ADDR_LO32,
318 				    i * hub->ctx_addr_distance, 0);
319 		WREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT1_PAGE_TABLE_START_ADDR_HI32,
320 				    i * hub->ctx_addr_distance, 0);
321 		WREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT1_PAGE_TABLE_END_ADDR_LO32,
322 				    i * hub->ctx_addr_distance,
323 				    lower_32_bits(adev->vm_manager.max_pfn - 1));
324 		WREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT1_PAGE_TABLE_END_ADDR_HI32,
325 				    i * hub->ctx_addr_distance,
326 				    upper_32_bits(adev->vm_manager.max_pfn - 1));
327 	}
328 
329 	hub->vm_cntx_cntl = tmp;
330 }
331 
332 static void gfxhub_v2_0_program_invalidation(struct amdgpu_device *adev)
333 {
334 	struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_GFXHUB_0];
335 	unsigned i;
336 
337 	for (i = 0 ; i < 18; ++i) {
338 		WREG32_SOC15_OFFSET(GC, 0, mmGCVM_INVALIDATE_ENG0_ADDR_RANGE_LO32,
339 				    i * hub->eng_addr_distance, 0xffffffff);
340 		WREG32_SOC15_OFFSET(GC, 0, mmGCVM_INVALIDATE_ENG0_ADDR_RANGE_HI32,
341 				    i * hub->eng_addr_distance, 0x1f);
342 	}
343 }
344 
345 static int gfxhub_v2_0_gart_enable(struct amdgpu_device *adev)
346 {
347 	/* GART Enable. */
348 	gfxhub_v2_0_init_gart_aperture_regs(adev);
349 	gfxhub_v2_0_init_system_aperture_regs(adev);
350 	gfxhub_v2_0_init_tlb_regs(adev);
351 	gfxhub_v2_0_init_cache_regs(adev);
352 
353 	gfxhub_v2_0_enable_system_domain(adev);
354 	gfxhub_v2_0_disable_identity_aperture(adev);
355 	gfxhub_v2_0_setup_vmid_config(adev);
356 	gfxhub_v2_0_program_invalidation(adev);
357 
358 	return 0;
359 }
360 
361 static void gfxhub_v2_0_gart_disable(struct amdgpu_device *adev)
362 {
363 	struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_GFXHUB_0];
364 	u32 tmp;
365 	u32 i;
366 
367 	/* Disable all tables */
368 	for (i = 0; i < 16; i++)
369 		WREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT0_CNTL,
370 				    i * hub->ctx_distance, 0);
371 
372 	/* Setup TLB control */
373 	tmp = RREG32_SOC15(GC, 0, mmGCMC_VM_MX_L1_TLB_CNTL);
374 	tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 0);
375 	tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL,
376 			    ENABLE_ADVANCED_DRIVER_MODEL, 0);
377 	WREG32_SOC15(GC, 0, mmGCMC_VM_MX_L1_TLB_CNTL, tmp);
378 
379 	if (!amdgpu_sriov_vf(adev)) {
380 		/* Setup L2 cache */
381 		WREG32_FIELD15(GC, 0, GCVM_L2_CNTL, ENABLE_L2_CACHE, 0);
382 		WREG32_SOC15(GC, 0, mmGCVM_L2_CNTL3, 0);
383 	}
384 }
385 
386 /**
387  * gfxhub_v2_0_set_fault_enable_default - update GART/VM fault handling
388  *
389  * @adev: amdgpu_device pointer
390  * @value: true redirects VM faults to the default page
391  */
392 static void gfxhub_v2_0_set_fault_enable_default(struct amdgpu_device *adev,
393 					  bool value)
394 {
395 	u32 tmp;
396 	tmp = RREG32_SOC15(GC, 0, mmGCVM_L2_PROTECTION_FAULT_CNTL);
397 	tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
398 			    RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
399 	tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
400 			    PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, value);
401 	tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
402 			    PDE1_PROTECTION_FAULT_ENABLE_DEFAULT, value);
403 	tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
404 			    PDE2_PROTECTION_FAULT_ENABLE_DEFAULT, value);
405 	tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
406 			    TRANSLATE_FURTHER_PROTECTION_FAULT_ENABLE_DEFAULT,
407 			    value);
408 	tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
409 			    NACK_PROTECTION_FAULT_ENABLE_DEFAULT, value);
410 	tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
411 			    DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
412 	tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
413 			    VALID_PROTECTION_FAULT_ENABLE_DEFAULT, value);
414 	tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
415 			    READ_PROTECTION_FAULT_ENABLE_DEFAULT, value);
416 	tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
417 			    WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
418 	tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
419 			    EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
420 	if (!value) {
421 		tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
422 				CRASH_ON_NO_RETRY_FAULT, 1);
423 		tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
424 				CRASH_ON_RETRY_FAULT, 1);
425 	}
426 	WREG32_SOC15(GC, 0, mmGCVM_L2_PROTECTION_FAULT_CNTL, tmp);
427 }
428 
429 static const struct amdgpu_vmhub_funcs gfxhub_v2_0_vmhub_funcs = {
430 	.print_l2_protection_fault_status = gfxhub_v2_0_print_l2_protection_fault_status,
431 	.get_invalidate_req = gfxhub_v2_0_get_invalidate_req,
432 };
433 
434 static void gfxhub_v2_0_init(struct amdgpu_device *adev)
435 {
436 	struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_GFXHUB_0];
437 
438 	hub->ctx0_ptb_addr_lo32 =
439 		SOC15_REG_OFFSET(GC, 0,
440 				 mmGCVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32);
441 	hub->ctx0_ptb_addr_hi32 =
442 		SOC15_REG_OFFSET(GC, 0,
443 				 mmGCVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32);
444 	hub->vm_inv_eng0_sem =
445 		SOC15_REG_OFFSET(GC, 0, mmGCVM_INVALIDATE_ENG0_SEM);
446 	hub->vm_inv_eng0_req =
447 		SOC15_REG_OFFSET(GC, 0, mmGCVM_INVALIDATE_ENG0_REQ);
448 	hub->vm_inv_eng0_ack =
449 		SOC15_REG_OFFSET(GC, 0, mmGCVM_INVALIDATE_ENG0_ACK);
450 	hub->vm_context0_cntl =
451 		SOC15_REG_OFFSET(GC, 0, mmGCVM_CONTEXT0_CNTL);
452 	hub->vm_l2_pro_fault_status =
453 		SOC15_REG_OFFSET(GC, 0, mmGCVM_L2_PROTECTION_FAULT_STATUS);
454 	hub->vm_l2_pro_fault_cntl =
455 		SOC15_REG_OFFSET(GC, 0, mmGCVM_L2_PROTECTION_FAULT_CNTL);
456 
457 	hub->ctx_distance = mmGCVM_CONTEXT1_CNTL - mmGCVM_CONTEXT0_CNTL;
458 	hub->ctx_addr_distance = mmGCVM_CONTEXT1_PAGE_TABLE_BASE_ADDR_LO32 -
459 		mmGCVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32;
460 	hub->eng_distance = mmGCVM_INVALIDATE_ENG1_REQ -
461 		mmGCVM_INVALIDATE_ENG0_REQ;
462 	hub->eng_addr_distance = mmGCVM_INVALIDATE_ENG1_ADDR_RANGE_LO32 -
463 		mmGCVM_INVALIDATE_ENG0_ADDR_RANGE_LO32;
464 
465 	hub->vm_cntx_cntl_vm_fault = GCVM_CONTEXT1_CNTL__RANGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
466 		GCVM_CONTEXT1_CNTL__DUMMY_PAGE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
467 		GCVM_CONTEXT1_CNTL__PDE0_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
468 		GCVM_CONTEXT1_CNTL__VALID_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
469 		GCVM_CONTEXT1_CNTL__READ_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
470 		GCVM_CONTEXT1_CNTL__WRITE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK |
471 		GCVM_CONTEXT1_CNTL__EXECUTE_PROTECTION_FAULT_ENABLE_INTERRUPT_MASK;
472 
473 	hub->vmhub_funcs = &gfxhub_v2_0_vmhub_funcs;
474 }
475 
476 const struct amdgpu_gfxhub_funcs gfxhub_v2_0_funcs = {
477 	.get_fb_location = gfxhub_v2_0_get_fb_location,
478 	.get_mc_fb_offset = gfxhub_v2_0_get_mc_fb_offset,
479 	.setup_vm_pt_regs = gfxhub_v2_0_setup_vm_pt_regs,
480 	.gart_enable = gfxhub_v2_0_gart_enable,
481 	.gart_disable = gfxhub_v2_0_gart_disable,
482 	.set_fault_enable_default = gfxhub_v2_0_set_fault_enable_default,
483 	.init = gfxhub_v2_0_init,
484 };
485