2 * Copyright 2019 Advanced Micro Devices, Inc.
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:
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
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.
25 #include "gfxhub_v2_0.h"
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"
32 #include "soc15_common.h"
34 u64 gfxhub_v2_0_get_fb_location(struct amdgpu_device *adev)
36 u64 base = RREG32_SOC15(GC, 0, mmGCMC_VM_FB_LOCATION_BASE);
38 base &= GCMC_VM_FB_LOCATION_BASE__FB_BASE_MASK;
44 u64 gfxhub_v2_0_get_mc_fb_offset(struct amdgpu_device *adev)
46 return (u64)RREG32_SOC15(GC, 0, mmGCMC_VM_FB_OFFSET) << 24;
49 void gfxhub_v2_0_setup_vm_pt_regs(struct amdgpu_device *adev, uint32_t vmid,
50 uint64_t page_table_base)
52 /* two registers distance between mmGCVM_CONTEXT0_* to mmGCVM_CONTEXT1_* */
53 int offset = mmGCVM_CONTEXT1_PAGE_TABLE_BASE_ADDR_LO32
54 - mmGCVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32;
56 WREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32,
57 offset * vmid, lower_32_bits(page_table_base));
59 WREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32,
60 offset * vmid, upper_32_bits(page_table_base));
63 static void gfxhub_v2_0_init_gart_aperture_regs(struct amdgpu_device *adev)
65 uint64_t pt_base = amdgpu_gmc_pd_addr(adev->gart.bo);
67 gfxhub_v2_0_setup_vm_pt_regs(adev, 0, pt_base);
69 WREG32_SOC15(GC, 0, mmGCVM_CONTEXT0_PAGE_TABLE_START_ADDR_LO32,
70 (u32)(adev->gmc.gart_start >> 12));
71 WREG32_SOC15(GC, 0, mmGCVM_CONTEXT0_PAGE_TABLE_START_ADDR_HI32,
72 (u32)(adev->gmc.gart_start >> 44));
74 WREG32_SOC15(GC, 0, mmGCVM_CONTEXT0_PAGE_TABLE_END_ADDR_LO32,
75 (u32)(adev->gmc.gart_end >> 12));
76 WREG32_SOC15(GC, 0, mmGCVM_CONTEXT0_PAGE_TABLE_END_ADDR_HI32,
77 (u32)(adev->gmc.gart_end >> 44));
80 static void gfxhub_v2_0_init_system_aperture_regs(struct amdgpu_device *adev)
84 if (!amdgpu_sriov_vf(adev)) {
86 * the new L1 policy will block SRIOV guest from writing
87 * these regs, and they will be programed at host.
88 * so skip programing these regs.
91 WREG32_SOC15(GC, 0, mmGCMC_VM_AGP_BASE, 0);
92 WREG32_SOC15(GC, 0, mmGCMC_VM_AGP_TOP, 0);
93 WREG32_SOC15(GC, 0, mmGCMC_VM_AGP_BOT, 0x00FFFFFF);
95 /* Program the system aperture low logical page number. */
96 WREG32_SOC15(GC, 0, mmGCMC_VM_SYSTEM_APERTURE_LOW_ADDR,
97 adev->gmc.vram_start >> 18);
98 WREG32_SOC15(GC, 0, mmGCMC_VM_SYSTEM_APERTURE_HIGH_ADDR,
99 adev->gmc.vram_end >> 18);
101 /* Set default page address. */
102 value = adev->vram_scratch.gpu_addr - adev->gmc.vram_start
103 + adev->vm_manager.vram_base_offset;
104 WREG32_SOC15(GC, 0, mmGCMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR_LSB,
106 WREG32_SOC15(GC, 0, mmGCMC_VM_SYSTEM_APERTURE_DEFAULT_ADDR_MSB,
110 /* Program "protection fault". */
111 WREG32_SOC15(GC, 0, mmGCVM_L2_PROTECTION_FAULT_DEFAULT_ADDR_LO32,
112 (u32)(adev->dummy_page_addr >> 12));
113 WREG32_SOC15(GC, 0, mmGCVM_L2_PROTECTION_FAULT_DEFAULT_ADDR_HI32,
114 (u32)((u64)adev->dummy_page_addr >> 44));
116 WREG32_FIELD15(GC, 0, GCVM_L2_PROTECTION_FAULT_CNTL2,
117 ACTIVE_PAGE_MIGRATION_PTE_READ_RETRY, 1);
121 static void gfxhub_v2_0_init_tlb_regs(struct amdgpu_device *adev)
125 /* Setup TLB control */
126 tmp = RREG32_SOC15(GC, 0, mmGCMC_VM_MX_L1_TLB_CNTL);
128 tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 1);
129 tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL, SYSTEM_ACCESS_MODE, 3);
130 tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL,
131 ENABLE_ADVANCED_DRIVER_MODEL, 1);
132 tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL,
133 SYSTEM_APERTURE_UNMAPPED_ACCESS, 0);
134 tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL, ECO_BITS, 0);
135 tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL,
136 MTYPE, MTYPE_UC); /* UC, uncached */
138 WREG32_SOC15(GC, 0, mmGCMC_VM_MX_L1_TLB_CNTL, tmp);
141 static void gfxhub_v2_0_init_cache_regs(struct amdgpu_device *adev)
145 /* These regs are not accessible for VF, PF will program these in SRIOV */
146 if (amdgpu_sriov_vf(adev))
150 tmp = RREG32_SOC15(GC, 0, mmGCVM_L2_CNTL);
151 tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL, ENABLE_L2_CACHE, 1);
152 tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL, ENABLE_L2_FRAGMENT_PROCESSING, 0);
153 tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL,
154 ENABLE_DEFAULT_PAGE_OUT_TO_SYSTEM_MEMORY, 1);
155 /* XXX for emulation, Refer to closed source code.*/
156 tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL,
157 L2_PDE0_CACHE_TAG_GENERATION_MODE, 0);
158 tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL, PDE_FAULT_CLASSIFICATION, 0);
159 tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL, CONTEXT1_IDENTITY_ACCESS_MODE, 1);
160 tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL, IDENTITY_MODE_FRAGMENT_SIZE, 0);
161 WREG32_SOC15(GC, 0, mmGCVM_L2_CNTL, tmp);
163 tmp = RREG32_SOC15(GC, 0, mmGCVM_L2_CNTL2);
164 tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL2, INVALIDATE_ALL_L1_TLBS, 1);
165 tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL2, INVALIDATE_L2_CACHE, 1);
166 WREG32_SOC15(GC, 0, mmGCVM_L2_CNTL2, tmp);
168 tmp = mmGCVM_L2_CNTL3_DEFAULT;
169 if (adev->gmc.translate_further) {
170 tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL3, BANK_SELECT, 12);
171 tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL3,
172 L2_CACHE_BIGK_FRAGMENT_SIZE, 9);
174 tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL3, BANK_SELECT, 9);
175 tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL3,
176 L2_CACHE_BIGK_FRAGMENT_SIZE, 6);
178 WREG32_SOC15(GC, 0, mmGCVM_L2_CNTL3, tmp);
180 tmp = mmGCVM_L2_CNTL4_DEFAULT;
181 tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL4, VMC_TAP_PDE_REQUEST_PHYSICAL, 0);
182 tmp = REG_SET_FIELD(tmp, GCVM_L2_CNTL4, VMC_TAP_PTE_REQUEST_PHYSICAL, 0);
183 WREG32_SOC15(GC, 0, mmGCVM_L2_CNTL4, tmp);
186 static void gfxhub_v2_0_enable_system_domain(struct amdgpu_device *adev)
190 tmp = RREG32_SOC15(GC, 0, mmGCVM_CONTEXT0_CNTL);
191 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT0_CNTL, ENABLE_CONTEXT, 1);
192 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT0_CNTL, PAGE_TABLE_DEPTH, 0);
193 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT0_CNTL,
194 RETRY_PERMISSION_OR_INVALID_PAGE_FAULT, 0);
195 WREG32_SOC15(GC, 0, mmGCVM_CONTEXT0_CNTL, tmp);
198 static void gfxhub_v2_0_disable_identity_aperture(struct amdgpu_device *adev)
200 WREG32_SOC15(GC, 0, mmGCVM_L2_CONTEXT1_IDENTITY_APERTURE_LOW_ADDR_LO32,
202 WREG32_SOC15(GC, 0, mmGCVM_L2_CONTEXT1_IDENTITY_APERTURE_LOW_ADDR_HI32,
205 WREG32_SOC15(GC, 0, mmGCVM_L2_CONTEXT1_IDENTITY_APERTURE_HIGH_ADDR_LO32,
207 WREG32_SOC15(GC, 0, mmGCVM_L2_CONTEXT1_IDENTITY_APERTURE_HIGH_ADDR_HI32,
210 WREG32_SOC15(GC, 0, mmGCVM_L2_CONTEXT_IDENTITY_PHYSICAL_OFFSET_LO32, 0);
211 WREG32_SOC15(GC, 0, mmGCVM_L2_CONTEXT_IDENTITY_PHYSICAL_OFFSET_HI32, 0);
215 static void gfxhub_v2_0_setup_vmid_config(struct amdgpu_device *adev)
220 for (i = 0; i <= 14; i++) {
221 tmp = RREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT1_CNTL, i);
222 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL, ENABLE_CONTEXT, 1);
223 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL, PAGE_TABLE_DEPTH,
224 adev->vm_manager.num_level);
225 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,
226 RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
227 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,
228 DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
229 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,
230 PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
231 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,
232 VALID_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
233 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,
234 READ_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
235 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,
236 WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
237 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,
238 EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT, 1);
239 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,
240 PAGE_TABLE_BLOCK_SIZE,
241 adev->vm_manager.block_size - 9);
242 /* Send no-retry XNACK on fault to suppress VM fault storm. */
243 tmp = REG_SET_FIELD(tmp, GCVM_CONTEXT1_CNTL,
244 RETRY_PERMISSION_OR_INVALID_PAGE_FAULT,
246 WREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT1_CNTL, i, tmp);
247 WREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT1_PAGE_TABLE_START_ADDR_LO32, i*2, 0);
248 WREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT1_PAGE_TABLE_START_ADDR_HI32, i*2, 0);
249 WREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT1_PAGE_TABLE_END_ADDR_LO32, i*2,
250 lower_32_bits(adev->vm_manager.max_pfn - 1));
251 WREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT1_PAGE_TABLE_END_ADDR_HI32, i*2,
252 upper_32_bits(adev->vm_manager.max_pfn - 1));
256 static void gfxhub_v2_0_program_invalidation(struct amdgpu_device *adev)
260 for (i = 0 ; i < 18; ++i) {
261 WREG32_SOC15_OFFSET(GC, 0, mmGCVM_INVALIDATE_ENG0_ADDR_RANGE_LO32,
263 WREG32_SOC15_OFFSET(GC, 0, mmGCVM_INVALIDATE_ENG0_ADDR_RANGE_HI32,
268 int gfxhub_v2_0_gart_enable(struct amdgpu_device *adev)
271 gfxhub_v2_0_init_gart_aperture_regs(adev);
272 gfxhub_v2_0_init_system_aperture_regs(adev);
273 gfxhub_v2_0_init_tlb_regs(adev);
274 gfxhub_v2_0_init_cache_regs(adev);
276 gfxhub_v2_0_enable_system_domain(adev);
277 gfxhub_v2_0_disable_identity_aperture(adev);
278 gfxhub_v2_0_setup_vmid_config(adev);
279 gfxhub_v2_0_program_invalidation(adev);
284 void gfxhub_v2_0_gart_disable(struct amdgpu_device *adev)
289 /* Disable all tables */
290 for (i = 0; i < 16; i++)
291 WREG32_SOC15_OFFSET(GC, 0, mmGCVM_CONTEXT0_CNTL, i, 0);
293 /* Setup TLB control */
294 tmp = RREG32_SOC15(GC, 0, mmGCMC_VM_MX_L1_TLB_CNTL);
295 tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL, ENABLE_L1_TLB, 0);
296 tmp = REG_SET_FIELD(tmp, GCMC_VM_MX_L1_TLB_CNTL,
297 ENABLE_ADVANCED_DRIVER_MODEL, 0);
298 WREG32_SOC15(GC, 0, mmGCMC_VM_MX_L1_TLB_CNTL, tmp);
300 if (!amdgpu_sriov_vf(adev)) {
302 WREG32_FIELD15(GC, 0, GCVM_L2_CNTL, ENABLE_L2_CACHE, 0);
303 WREG32_SOC15(GC, 0, mmGCVM_L2_CNTL3, 0);
308 * gfxhub_v2_0_set_fault_enable_default - update GART/VM fault handling
310 * @adev: amdgpu_device pointer
311 * @value: true redirects VM faults to the default page
313 void gfxhub_v2_0_set_fault_enable_default(struct amdgpu_device *adev,
317 tmp = RREG32_SOC15(GC, 0, mmGCVM_L2_PROTECTION_FAULT_CNTL);
318 tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
319 RANGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
320 tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
321 PDE0_PROTECTION_FAULT_ENABLE_DEFAULT, value);
322 tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
323 PDE1_PROTECTION_FAULT_ENABLE_DEFAULT, value);
324 tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
325 PDE2_PROTECTION_FAULT_ENABLE_DEFAULT, value);
326 tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
327 TRANSLATE_FURTHER_PROTECTION_FAULT_ENABLE_DEFAULT,
329 tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
330 NACK_PROTECTION_FAULT_ENABLE_DEFAULT, value);
331 tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
332 DUMMY_PAGE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
333 tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
334 VALID_PROTECTION_FAULT_ENABLE_DEFAULT, value);
335 tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
336 READ_PROTECTION_FAULT_ENABLE_DEFAULT, value);
337 tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
338 WRITE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
339 tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
340 EXECUTE_PROTECTION_FAULT_ENABLE_DEFAULT, value);
342 tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
343 CRASH_ON_NO_RETRY_FAULT, 1);
344 tmp = REG_SET_FIELD(tmp, GCVM_L2_PROTECTION_FAULT_CNTL,
345 CRASH_ON_RETRY_FAULT, 1);
347 WREG32_SOC15(GC, 0, mmGCVM_L2_PROTECTION_FAULT_CNTL, tmp);
350 void gfxhub_v2_0_init(struct amdgpu_device *adev)
352 struct amdgpu_vmhub *hub = &adev->vmhub[AMDGPU_GFXHUB_0];
354 hub->ctx0_ptb_addr_lo32 =
355 SOC15_REG_OFFSET(GC, 0,
356 mmGCVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_LO32);
357 hub->ctx0_ptb_addr_hi32 =
358 SOC15_REG_OFFSET(GC, 0,
359 mmGCVM_CONTEXT0_PAGE_TABLE_BASE_ADDR_HI32);
360 hub->vm_inv_eng0_sem =
361 SOC15_REG_OFFSET(GC, 0, mmGCVM_INVALIDATE_ENG0_SEM);
362 hub->vm_inv_eng0_req =
363 SOC15_REG_OFFSET(GC, 0, mmGCVM_INVALIDATE_ENG0_REQ);
364 hub->vm_inv_eng0_ack =
365 SOC15_REG_OFFSET(GC, 0, mmGCVM_INVALIDATE_ENG0_ACK);
366 hub->vm_context0_cntl =
367 SOC15_REG_OFFSET(GC, 0, mmGCVM_CONTEXT0_CNTL);
368 hub->vm_l2_pro_fault_status =
369 SOC15_REG_OFFSET(GC, 0, mmGCVM_L2_PROTECTION_FAULT_STATUS);
370 hub->vm_l2_pro_fault_cntl =
371 SOC15_REG_OFFSET(GC, 0, mmGCVM_L2_PROTECTION_FAULT_CNTL);