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#include "amdgpu.h"
24#include "nbio_v7_9.h"
25#include "amdgpu_ras.h"
26
27#include "nbio/nbio_7_9_0_offset.h"
28#include "nbio/nbio_7_9_0_sh_mask.h"
29#include "ivsrcid/nbio/irqsrcs_nbif_7_4.h"
30#include <uapi/linux/kfd_ioctl.h>
31
32#define NPS_MODE_MASK 0x000000FFL
33
34static void nbio_v7_9_remap_hdp_registers(struct amdgpu_device *adev)
35{
36 WREG32_SOC15(NBIO, 0, regBIF_BX0_REMAP_HDP_MEM_FLUSH_CNTL,
37 adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_MEM_FLUSH_CNTL);
38 WREG32_SOC15(NBIO, 0, regBIF_BX0_REMAP_HDP_REG_FLUSH_CNTL,
39 adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_REG_FLUSH_CNTL);
40}
41
42static u32 nbio_v7_9_get_rev_id(struct amdgpu_device *adev)
43{
44 u32 rev_id;
45
46 /*
47 * fetch the sub-revision field from the IP-discovery table
48 * (returns zero if the table entry is not populated).
49 */
50 if (amdgpu_sriov_vf(adev)) {
51 rev_id = IP_VERSION_SUBREV(amdgpu_ip_version_full(adev, NBIO_HWIP, 0));
52 } else {
53 rev_id = RREG32_SOC15(NBIO, 0, regRCC_STRAP0_RCC_DEV0_EPF0_STRAP0);
54 rev_id = REG_GET_FIELD(rev_id, RCC_STRAP0_RCC_DEV0_EPF0_STRAP0,
55 STRAP_ATI_REV_ID_DEV0_F0);
56 }
57
58 return rev_id;
59}
60
61static void nbio_v7_9_mc_access_enable(struct amdgpu_device *adev, bool enable)
62{
63 if (enable)
64 WREG32_SOC15(NBIO, 0, regBIF_BX0_BIF_FB_EN,
65 BIF_BX0_BIF_FB_EN__FB_READ_EN_MASK | BIF_BX0_BIF_FB_EN__FB_WRITE_EN_MASK);
66 else
67 WREG32_SOC15(NBIO, 0, regBIF_BX0_BIF_FB_EN, 0);
68}
69
70static u32 nbio_v7_9_get_memsize(struct amdgpu_device *adev)
71{
72 return RREG32_SOC15(NBIO, 0, regRCC_DEV0_EPF0_RCC_CONFIG_MEMSIZE);
73}
74
75static void nbio_v7_9_sdma_doorbell_range(struct amdgpu_device *adev, int instance,
76 bool use_doorbell, int doorbell_index, int doorbell_size)
77{
78 u32 doorbell_range = 0, doorbell_ctrl = 0;
79 int aid_id, dev_inst;
80
81 dev_inst = GET_INST(SDMA0, instance);
82 aid_id = adev->sdma.instance[instance].aid_id;
83
84 if (use_doorbell == false)
85 return;
86
87 doorbell_range =
88 REG_SET_FIELD(doorbell_range, DOORBELL0_CTRL_ENTRY_0,
89 BIF_DOORBELL0_RANGE_OFFSET_ENTRY, doorbell_index);
90 doorbell_range =
91 REG_SET_FIELD(doorbell_range, DOORBELL0_CTRL_ENTRY_0,
92 BIF_DOORBELL0_RANGE_SIZE_ENTRY, doorbell_size);
93 doorbell_ctrl =
94 REG_SET_FIELD(doorbell_ctrl, S2A_DOORBELL_ENTRY_1_CTRL,
95 S2A_DOORBELL_PORT1_ENABLE, 1);
96 doorbell_ctrl =
97 REG_SET_FIELD(doorbell_ctrl, S2A_DOORBELL_ENTRY_1_CTRL,
98 S2A_DOORBELL_PORT1_RANGE_SIZE, doorbell_size);
99
100 switch (dev_inst % adev->sdma.num_inst_per_aid) {
101 case 0:
102 WREG32_SOC15_OFFSET(NBIO, 0, regDOORBELL0_CTRL_ENTRY_1,
103 4 * aid_id, doorbell_range);
104
105 doorbell_ctrl = REG_SET_FIELD(doorbell_ctrl,
106 S2A_DOORBELL_ENTRY_1_CTRL,
107 S2A_DOORBELL_PORT1_AWID, 0xe);
108 doorbell_ctrl = REG_SET_FIELD(doorbell_ctrl,
109 S2A_DOORBELL_ENTRY_1_CTRL,
110 S2A_DOORBELL_PORT1_RANGE_OFFSET, 0xe);
111 doorbell_ctrl = REG_SET_FIELD(doorbell_ctrl,
112 S2A_DOORBELL_ENTRY_1_CTRL,
113 S2A_DOORBELL_PORT1_AWADDR_31_28_VALUE,
114 0x1);
115 WREG32_SOC15_EXT(NBIO, aid_id, regS2A_DOORBELL_ENTRY_1_CTRL,
116 aid_id, doorbell_ctrl);
117 break;
118 case 1:
119 WREG32_SOC15_OFFSET(NBIO, 0, regDOORBELL0_CTRL_ENTRY_2,
120 4 * aid_id, doorbell_range);
121
122 doorbell_ctrl = REG_SET_FIELD(doorbell_ctrl,
123 S2A_DOORBELL_ENTRY_1_CTRL,
124 S2A_DOORBELL_PORT1_AWID, 0x8);
125 doorbell_ctrl = REG_SET_FIELD(doorbell_ctrl,
126 S2A_DOORBELL_ENTRY_1_CTRL,
127 S2A_DOORBELL_PORT1_RANGE_OFFSET, 0x8);
128 doorbell_ctrl = REG_SET_FIELD(doorbell_ctrl,
129 S2A_DOORBELL_ENTRY_1_CTRL,
130 S2A_DOORBELL_PORT1_AWADDR_31_28_VALUE,
131 0x2);
132 WREG32_SOC15_EXT(NBIO, aid_id, regS2A_DOORBELL_ENTRY_2_CTRL,
133 aid_id, doorbell_ctrl);
134 break;
135 case 2:
136 WREG32_SOC15_OFFSET(NBIO, 0, regDOORBELL0_CTRL_ENTRY_3,
137 4 * aid_id, doorbell_range);
138
139 doorbell_ctrl = REG_SET_FIELD(doorbell_ctrl,
140 S2A_DOORBELL_ENTRY_1_CTRL,
141 S2A_DOORBELL_PORT1_AWID, 0x9);
142 doorbell_ctrl = REG_SET_FIELD(doorbell_ctrl,
143 S2A_DOORBELL_ENTRY_1_CTRL,
144 S2A_DOORBELL_PORT1_RANGE_OFFSET, 0x9);
145 doorbell_ctrl = REG_SET_FIELD(doorbell_ctrl,
146 S2A_DOORBELL_ENTRY_1_CTRL,
147 S2A_DOORBELL_PORT1_AWADDR_31_28_VALUE,
148 0x8);
149 WREG32_SOC15_EXT(NBIO, aid_id, regS2A_DOORBELL_ENTRY_5_CTRL,
150 aid_id, doorbell_ctrl);
151 break;
152 case 3:
153 WREG32_SOC15_OFFSET(NBIO, 0, regDOORBELL0_CTRL_ENTRY_4,
154 4 * aid_id, doorbell_range);
155
156 doorbell_ctrl = REG_SET_FIELD(doorbell_ctrl,
157 S2A_DOORBELL_ENTRY_1_CTRL,
158 S2A_DOORBELL_PORT1_AWID, 0xa);
159 doorbell_ctrl = REG_SET_FIELD(doorbell_ctrl,
160 S2A_DOORBELL_ENTRY_1_CTRL,
161 S2A_DOORBELL_PORT1_RANGE_OFFSET, 0xa);
162 doorbell_ctrl = REG_SET_FIELD(doorbell_ctrl,
163 S2A_DOORBELL_ENTRY_1_CTRL,
164 S2A_DOORBELL_PORT1_AWADDR_31_28_VALUE,
165 0x9);
166 WREG32_SOC15_EXT(NBIO, aid_id, regS2A_DOORBELL_ENTRY_6_CTRL,
167 aid_id, doorbell_ctrl);
168 break;
169 default:
170 break;
171 }
172}
173
174static void nbio_v7_9_vcn_doorbell_range(struct amdgpu_device *adev, bool use_doorbell,
175 int doorbell_index, int instance)
176{
177 u32 doorbell_range = 0, doorbell_ctrl = 0;
178 u32 aid_id = instance;
179 u32 range_size;
180
181 if (use_doorbell) {
182 range_size = (amdgpu_ip_version(adev, ip: GC_HWIP, inst: 0) ==
183 IP_VERSION(9, 5, 0)) ?
184 0xb : 0x9;
185 doorbell_range = REG_SET_FIELD(doorbell_range,
186 DOORBELL0_CTRL_ENTRY_0,
187 BIF_DOORBELL0_RANGE_OFFSET_ENTRY,
188 doorbell_index);
189 doorbell_range = REG_SET_FIELD(doorbell_range,
190 DOORBELL0_CTRL_ENTRY_0,
191 BIF_DOORBELL0_RANGE_SIZE_ENTRY,
192 range_size);
193 if (aid_id)
194 doorbell_range = REG_SET_FIELD(doorbell_range,
195 DOORBELL0_CTRL_ENTRY_0,
196 DOORBELL0_FENCE_ENABLE_ENTRY,
197 0x4);
198
199 doorbell_ctrl = REG_SET_FIELD(doorbell_ctrl,
200 S2A_DOORBELL_ENTRY_1_CTRL,
201 S2A_DOORBELL_PORT1_ENABLE, 1);
202 doorbell_ctrl = REG_SET_FIELD(doorbell_ctrl,
203 S2A_DOORBELL_ENTRY_1_CTRL,
204 S2A_DOORBELL_PORT1_AWID, 0x4);
205 doorbell_ctrl = REG_SET_FIELD(doorbell_ctrl,
206 S2A_DOORBELL_ENTRY_1_CTRL,
207 S2A_DOORBELL_PORT1_RANGE_OFFSET, 0x4);
208 doorbell_ctrl = REG_SET_FIELD(doorbell_ctrl,
209 S2A_DOORBELL_ENTRY_1_CTRL,
210 S2A_DOORBELL_PORT1_RANGE_SIZE, range_size);
211 doorbell_ctrl = REG_SET_FIELD(doorbell_ctrl,
212 S2A_DOORBELL_ENTRY_1_CTRL,
213 S2A_DOORBELL_PORT1_AWADDR_31_28_VALUE, 0x4);
214
215 WREG32_SOC15_OFFSET(NBIO, 0, regDOORBELL0_CTRL_ENTRY_17,
216 aid_id, doorbell_range);
217 WREG32_SOC15_EXT(NBIO, aid_id, regS2A_DOORBELL_ENTRY_4_CTRL,
218 aid_id, doorbell_ctrl);
219 } else {
220 doorbell_range = REG_SET_FIELD(doorbell_range,
221 DOORBELL0_CTRL_ENTRY_0,
222 BIF_DOORBELL0_RANGE_SIZE_ENTRY, 0);
223 doorbell_ctrl = REG_SET_FIELD(doorbell_ctrl,
224 S2A_DOORBELL_ENTRY_1_CTRL,
225 S2A_DOORBELL_PORT1_RANGE_SIZE, 0);
226
227 WREG32_SOC15_OFFSET(NBIO, 0, regDOORBELL0_CTRL_ENTRY_17,
228 aid_id, doorbell_range);
229 WREG32_SOC15_EXT(NBIO, aid_id, regS2A_DOORBELL_ENTRY_4_CTRL,
230 aid_id, doorbell_ctrl);
231 }
232}
233
234static void nbio_v7_9_enable_doorbell_aperture(struct amdgpu_device *adev,
235 bool enable)
236{
237 /* Enable to allow doorbell pass thru on pre-silicon bare-metal */
238 WREG32_SOC15(NBIO, 0, regBIFC_DOORBELL_ACCESS_EN_PF, 0xfffff);
239 WREG32_FIELD15_PREREG(NBIO, 0, RCC_DEV0_EPF0_RCC_DOORBELL_APER_EN,
240 BIF_DOORBELL_APER_EN, enable ? 1 : 0);
241}
242
243static void nbio_v7_9_enable_doorbell_selfring_aperture(struct amdgpu_device *adev,
244 bool enable)
245{
246 u32 tmp = 0;
247
248 if (enable) {
249 tmp = REG_SET_FIELD(tmp, BIF_BX_PF0_DOORBELL_SELFRING_GPA_APER_CNTL,
250 DOORBELL_SELFRING_GPA_APER_EN, 1) |
251 REG_SET_FIELD(tmp, BIF_BX_PF0_DOORBELL_SELFRING_GPA_APER_CNTL,
252 DOORBELL_SELFRING_GPA_APER_MODE, 1) |
253 REG_SET_FIELD(tmp, BIF_BX_PF0_DOORBELL_SELFRING_GPA_APER_CNTL,
254 DOORBELL_SELFRING_GPA_APER_SIZE, 0);
255
256 WREG32_SOC15(NBIO, 0, regBIF_BX_PF0_DOORBELL_SELFRING_GPA_APER_BASE_LOW,
257 lower_32_bits(adev->doorbell.base));
258 WREG32_SOC15(NBIO, 0, regBIF_BX_PF0_DOORBELL_SELFRING_GPA_APER_BASE_HIGH,
259 upper_32_bits(adev->doorbell.base));
260 }
261
262 WREG32_SOC15(NBIO, 0, regBIF_BX_PF0_DOORBELL_SELFRING_GPA_APER_CNTL, tmp);
263}
264
265static void nbio_v7_9_ih_doorbell_range(struct amdgpu_device *adev,
266 bool use_doorbell, int doorbell_index)
267{
268 u32 ih_doorbell_range = 0, ih_doorbell_ctrl = 0;
269
270 if (use_doorbell) {
271 ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range,
272 DOORBELL0_CTRL_ENTRY_0,
273 BIF_DOORBELL0_RANGE_OFFSET_ENTRY,
274 doorbell_index);
275 ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range,
276 DOORBELL0_CTRL_ENTRY_0,
277 BIF_DOORBELL0_RANGE_SIZE_ENTRY,
278 0x8);
279
280 ih_doorbell_ctrl = REG_SET_FIELD(ih_doorbell_ctrl,
281 S2A_DOORBELL_ENTRY_1_CTRL,
282 S2A_DOORBELL_PORT1_ENABLE, 1);
283 ih_doorbell_ctrl = REG_SET_FIELD(ih_doorbell_ctrl,
284 S2A_DOORBELL_ENTRY_1_CTRL,
285 S2A_DOORBELL_PORT1_AWID, 0);
286 ih_doorbell_ctrl = REG_SET_FIELD(ih_doorbell_ctrl,
287 S2A_DOORBELL_ENTRY_1_CTRL,
288 S2A_DOORBELL_PORT1_RANGE_OFFSET, 0);
289 ih_doorbell_ctrl = REG_SET_FIELD(ih_doorbell_ctrl,
290 S2A_DOORBELL_ENTRY_1_CTRL,
291 S2A_DOORBELL_PORT1_RANGE_SIZE, 0x8);
292 ih_doorbell_ctrl = REG_SET_FIELD(ih_doorbell_ctrl,
293 S2A_DOORBELL_ENTRY_1_CTRL,
294 S2A_DOORBELL_PORT1_AWADDR_31_28_VALUE, 0);
295 } else {
296 ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range,
297 DOORBELL0_CTRL_ENTRY_0,
298 BIF_DOORBELL0_RANGE_SIZE_ENTRY, 0);
299 ih_doorbell_ctrl = REG_SET_FIELD(ih_doorbell_ctrl,
300 S2A_DOORBELL_ENTRY_1_CTRL,
301 S2A_DOORBELL_PORT1_RANGE_SIZE, 0);
302 }
303
304 WREG32_SOC15(NBIO, 0, regDOORBELL0_CTRL_ENTRY_0, ih_doorbell_range);
305 WREG32_SOC15(NBIO, 0, regS2A_DOORBELL_ENTRY_3_CTRL, ih_doorbell_ctrl);
306}
307
308
309static void nbio_v7_9_update_medium_grain_clock_gating(struct amdgpu_device *adev,
310 bool enable)
311{
312}
313
314static void nbio_v7_9_update_medium_grain_light_sleep(struct amdgpu_device *adev,
315 bool enable)
316{
317}
318
319static void nbio_v7_9_get_clockgating_state(struct amdgpu_device *adev,
320 u64 *flags)
321{
322}
323
324static void nbio_v7_9_ih_control(struct amdgpu_device *adev)
325{
326 u32 interrupt_cntl;
327
328 /* setup interrupt control */
329 WREG32_SOC15(NBIO, 0, regBIF_BX0_INTERRUPT_CNTL2, adev->dummy_page_addr >> 8);
330 interrupt_cntl = RREG32_SOC15(NBIO, 0, regBIF_BX0_INTERRUPT_CNTL);
331 /* INTERRUPT_CNTL__IH_DUMMY_RD_OVERRIDE_MASK=0 - dummy read disabled with msi, enabled without msi
332 * INTERRUPT_CNTL__IH_DUMMY_RD_OVERRIDE_MASK=1 - dummy read controlled by IH_DUMMY_RD_EN
333 */
334 interrupt_cntl =
335 REG_SET_FIELD(interrupt_cntl, BIF_BX0_INTERRUPT_CNTL, IH_DUMMY_RD_OVERRIDE, 0);
336 /* INTERRUPT_CNTL__IH_REQ_NONSNOOP_EN_MASK=1 if ring is in non-cacheable memory, e.g., vram */
337 interrupt_cntl =
338 REG_SET_FIELD(interrupt_cntl, BIF_BX0_INTERRUPT_CNTL, IH_REQ_NONSNOOP_EN, 0);
339 WREG32_SOC15(NBIO, 0, regBIF_BX0_INTERRUPT_CNTL, interrupt_cntl);
340}
341
342static u32 nbio_v7_9_get_hdp_flush_req_offset(struct amdgpu_device *adev)
343{
344 return SOC15_REG_OFFSET(NBIO, 0, regBIF_BX_PF0_GPU_HDP_FLUSH_REQ);
345}
346
347static u32 nbio_v7_9_get_hdp_flush_done_offset(struct amdgpu_device *adev)
348{
349 return SOC15_REG_OFFSET(NBIO, 0, regBIF_BX_PF0_GPU_HDP_FLUSH_DONE);
350}
351
352static u32 nbio_v7_9_get_pcie_index_offset(struct amdgpu_device *adev)
353{
354 return SOC15_REG_OFFSET(NBIO, 0, regBIF_BX0_PCIE_INDEX2);
355}
356
357static u32 nbio_v7_9_get_pcie_data_offset(struct amdgpu_device *adev)
358{
359 return SOC15_REG_OFFSET(NBIO, 0, regBIF_BX0_PCIE_DATA2);
360}
361
362static u32 nbio_v7_9_get_pcie_index_hi_offset(struct amdgpu_device *adev)
363{
364 return SOC15_REG_OFFSET(NBIO, 0, regBIF_BX0_PCIE_INDEX2_HI);
365}
366
367const struct nbio_hdp_flush_reg nbio_v7_9_hdp_flush_reg = {
368 .ref_and_mask_cp0 = BIF_BX_PF0_GPU_HDP_FLUSH_DONE__CP0_MASK,
369 .ref_and_mask_cp1 = BIF_BX_PF0_GPU_HDP_FLUSH_DONE__CP1_MASK,
370 .ref_and_mask_cp2 = BIF_BX_PF0_GPU_HDP_FLUSH_DONE__CP2_MASK,
371 .ref_and_mask_cp3 = BIF_BX_PF0_GPU_HDP_FLUSH_DONE__CP3_MASK,
372 .ref_and_mask_cp4 = BIF_BX_PF0_GPU_HDP_FLUSH_DONE__CP4_MASK,
373 .ref_and_mask_cp5 = BIF_BX_PF0_GPU_HDP_FLUSH_DONE__CP5_MASK,
374 .ref_and_mask_cp6 = BIF_BX_PF0_GPU_HDP_FLUSH_DONE__CP6_MASK,
375 .ref_and_mask_cp7 = BIF_BX_PF0_GPU_HDP_FLUSH_DONE__CP7_MASK,
376 .ref_and_mask_cp8 = BIF_BX_PF0_GPU_HDP_FLUSH_DONE__CP8_MASK,
377 .ref_and_mask_cp9 = BIF_BX_PF0_GPU_HDP_FLUSH_DONE__CP9_MASK,
378 .ref_and_mask_sdma0 = BIF_BX_PF0_GPU_HDP_FLUSH_DONE__SDMA0_MASK,
379 .ref_and_mask_sdma1 = BIF_BX_PF0_GPU_HDP_FLUSH_DONE__SDMA1_MASK,
380 .ref_and_mask_sdma2 = BIF_BX_PF0_GPU_HDP_FLUSH_DONE__RSVD_ENG0_MASK,
381 .ref_and_mask_sdma3 = BIF_BX_PF0_GPU_HDP_FLUSH_DONE__RSVD_ENG1_MASK,
382 .ref_and_mask_sdma4 = BIF_BX_PF0_GPU_HDP_FLUSH_DONE__RSVD_ENG2_MASK,
383 .ref_and_mask_sdma5 = BIF_BX_PF0_GPU_HDP_FLUSH_DONE__RSVD_ENG3_MASK,
384 .ref_and_mask_sdma6 = BIF_BX_PF0_GPU_HDP_FLUSH_DONE__RSVD_ENG4_MASK,
385 .ref_and_mask_sdma7 = BIF_BX_PF0_GPU_HDP_FLUSH_DONE__RSVD_ENG5_MASK,
386};
387
388static void nbio_v7_9_enable_doorbell_interrupt(struct amdgpu_device *adev,
389 bool enable)
390{
391 WREG32_FIELD15_PREREG(NBIO, 0, BIF_BX0_BIF_DOORBELL_INT_CNTL,
392 DOORBELL_INTERRUPT_DISABLE, enable ? 0 : 1);
393}
394
395static int nbio_v7_9_get_compute_partition_mode(struct amdgpu_device *adev)
396{
397 u32 tmp, px;
398
399 tmp = RREG32_SOC15(NBIO, 0, regBIF_BX_PF0_PARTITION_COMPUTE_STATUS);
400 px = REG_GET_FIELD(tmp, BIF_BX_PF0_PARTITION_COMPUTE_STATUS,
401 PARTITION_MODE);
402
403 return px;
404}
405
406static bool nbio_v7_9_is_nps_switch_requested(struct amdgpu_device *adev)
407{
408 u32 tmp;
409
410 tmp = RREG32_SOC15(NBIO, 0, regBIF_BX_PF0_PARTITION_MEM_STATUS);
411 tmp = REG_GET_FIELD(tmp, BIF_BX_PF0_PARTITION_MEM_STATUS,
412 CHANGE_STATUE);
413
414 /* 0x8 - NPS switch requested */
415 return (tmp == 0x8);
416}
417static u32 nbio_v7_9_get_memory_partition_mode(struct amdgpu_device *adev,
418 u32 *supp_modes)
419{
420 u32 tmp;
421
422 tmp = RREG32_SOC15(NBIO, 0, regBIF_BX_PF0_PARTITION_MEM_STATUS);
423 tmp = REG_GET_FIELD(tmp, BIF_BX_PF0_PARTITION_MEM_STATUS, NPS_MODE);
424
425 if (supp_modes) {
426 *supp_modes =
427 RREG32_SOC15(NBIO, 0, regBIF_BX_PF0_PARTITION_MEM_CAP);
428 }
429
430 return ffs(tmp);
431}
432
433static void nbio_v7_9_init_registers(struct amdgpu_device *adev)
434{
435 u32 inst_mask;
436 int i;
437
438 WREG32_SOC15(NBIO, 0, regXCC_DOORBELL_FENCE,
439 0xff & ~(adev->gfx.xcc_mask));
440
441 WREG32_SOC15(NBIO, 0, regBIFC_GFX_INT_MONITOR_MASK, 0x7ff);
442
443 inst_mask = adev->aid_mask & ~1U;
444 for_each_inst(i, inst_mask) {
445 WREG32_SOC15_EXT(NBIO, i, regXCC_DOORBELL_FENCE, i,
446 XCC_DOORBELL_FENCE__SHUB_SLV_MODE_MASK);
447
448 }
449
450 if (!amdgpu_sriov_vf(adev)) {
451 u32 baco_cntl;
452 for_each_inst(i, adev->aid_mask) {
453 baco_cntl = RREG32_SOC15(NBIO, i, regBIF_BX0_BACO_CNTL);
454 if (baco_cntl & (BIF_BX0_BACO_CNTL__BACO_DUMMY_EN_MASK |
455 BIF_BX0_BACO_CNTL__BACO_EN_MASK)) {
456 baco_cntl &= ~(
457 BIF_BX0_BACO_CNTL__BACO_DUMMY_EN_MASK |
458 BIF_BX0_BACO_CNTL__BACO_EN_MASK);
459 dev_dbg(adev->dev,
460 "Unsetting baco dummy mode %x",
461 baco_cntl);
462 WREG32_SOC15(NBIO, i, regBIF_BX0_BACO_CNTL,
463 baco_cntl);
464 }
465 }
466 }
467}
468
469#define MMIO_REG_HOLE_OFFSET 0x1A000
470
471static void nbio_v7_9_set_reg_remap(struct amdgpu_device *adev)
472{
473 if (!amdgpu_sriov_vf(adev) && (PAGE_SIZE <= 4096)) {
474 adev->rmmio_remap.reg_offset = MMIO_REG_HOLE_OFFSET;
475 adev->rmmio_remap.bus_addr = adev->rmmio_base + MMIO_REG_HOLE_OFFSET;
476 } else {
477 adev->rmmio_remap.reg_offset =
478 SOC15_REG_OFFSET(
479 NBIO, 0,
480 regBIF_BX_DEV0_EPF0_VF0_HDP_MEM_COHERENCY_FLUSH_CNTL)
481 << 2;
482 adev->rmmio_remap.bus_addr = 0;
483 }
484}
485
486const struct amdgpu_nbio_funcs nbio_v7_9_funcs = {
487 .get_hdp_flush_req_offset = nbio_v7_9_get_hdp_flush_req_offset,
488 .get_hdp_flush_done_offset = nbio_v7_9_get_hdp_flush_done_offset,
489 .get_pcie_index_offset = nbio_v7_9_get_pcie_index_offset,
490 .get_pcie_data_offset = nbio_v7_9_get_pcie_data_offset,
491 .get_pcie_index_hi_offset = nbio_v7_9_get_pcie_index_hi_offset,
492 .get_rev_id = nbio_v7_9_get_rev_id,
493 .mc_access_enable = nbio_v7_9_mc_access_enable,
494 .get_memsize = nbio_v7_9_get_memsize,
495 .sdma_doorbell_range = nbio_v7_9_sdma_doorbell_range,
496 .vcn_doorbell_range = nbio_v7_9_vcn_doorbell_range,
497 .enable_doorbell_aperture = nbio_v7_9_enable_doorbell_aperture,
498 .enable_doorbell_selfring_aperture = nbio_v7_9_enable_doorbell_selfring_aperture,
499 .ih_doorbell_range = nbio_v7_9_ih_doorbell_range,
500 .enable_doorbell_interrupt = nbio_v7_9_enable_doorbell_interrupt,
501 .update_medium_grain_clock_gating = nbio_v7_9_update_medium_grain_clock_gating,
502 .update_medium_grain_light_sleep = nbio_v7_9_update_medium_grain_light_sleep,
503 .get_clockgating_state = nbio_v7_9_get_clockgating_state,
504 .ih_control = nbio_v7_9_ih_control,
505 .remap_hdp_registers = nbio_v7_9_remap_hdp_registers,
506 .get_compute_partition_mode = nbio_v7_9_get_compute_partition_mode,
507 .get_memory_partition_mode = nbio_v7_9_get_memory_partition_mode,
508 .is_nps_switch_requested = nbio_v7_9_is_nps_switch_requested,
509 .init_registers = nbio_v7_9_init_registers,
510 .set_reg_remap = nbio_v7_9_set_reg_remap,
511};
512
513static void nbio_v7_9_query_ras_error_count(struct amdgpu_device *adev,
514 void *ras_error_status)
515{
516}
517
518static void nbio_v7_9_handle_ras_controller_intr_no_bifring(struct amdgpu_device *adev)
519{
520 uint32_t bif_doorbell_intr_cntl;
521 struct ras_manager *obj = amdgpu_ras_find_obj(adev, head: adev->nbio.ras_if);
522 struct ras_err_data err_data;
523 struct amdgpu_ras *ras = amdgpu_ras_get_context(adev);
524
525 if (amdgpu_ras_error_data_init(err_data: &err_data))
526 return;
527
528 bif_doorbell_intr_cntl = RREG32_SOC15(NBIO, 0, regBIF_BX0_BIF_DOORBELL_INT_CNTL);
529
530 if (REG_GET_FIELD(bif_doorbell_intr_cntl,
531 BIF_BX0_BIF_DOORBELL_INT_CNTL, RAS_CNTLR_INTERRUPT_STATUS)) {
532 /* driver has to clear the interrupt status when bif ring is disabled */
533 bif_doorbell_intr_cntl = REG_SET_FIELD(bif_doorbell_intr_cntl,
534 BIF_BX0_BIF_DOORBELL_INT_CNTL,
535 RAS_CNTLR_INTERRUPT_CLEAR, 1);
536 WREG32_SOC15(NBIO, 0, regBIF_BX0_BIF_DOORBELL_INT_CNTL, bif_doorbell_intr_cntl);
537
538 if (!ras->disable_ras_err_cnt_harvest) {
539 /*
540 * clear error status after ras_controller_intr
541 * according to hw team and count ue number
542 * for query
543 */
544 nbio_v7_9_query_ras_error_count(adev, ras_error_status: &err_data);
545
546 /* logging on error cnt and printing for awareness */
547 obj->err_data.ue_count += err_data.ue_count;
548 obj->err_data.ce_count += err_data.ce_count;
549
550 if (err_data.ce_count)
551 dev_info(adev->dev, "%ld correctable hardware "
552 "errors detected in %s block\n",
553 obj->err_data.ce_count,
554 get_ras_block_str(adev->nbio.ras_if));
555
556 if (err_data.ue_count)
557 dev_info(adev->dev, "%ld uncorrectable hardware "
558 "errors detected in %s block\n",
559 obj->err_data.ue_count,
560 get_ras_block_str(adev->nbio.ras_if));
561 }
562
563 dev_info(adev->dev, "RAS controller interrupt triggered "
564 "by NBIF error\n");
565 }
566
567 amdgpu_ras_error_data_fini(err_data: &err_data);
568}
569
570static void nbio_v7_9_handle_ras_err_event_athub_intr_no_bifring(struct amdgpu_device *adev)
571{
572 uint32_t bif_doorbell_intr_cntl;
573
574 bif_doorbell_intr_cntl = RREG32_SOC15(NBIO, 0, regBIF_BX0_BIF_DOORBELL_INT_CNTL);
575
576 if (REG_GET_FIELD(bif_doorbell_intr_cntl,
577 BIF_BX0_BIF_DOORBELL_INT_CNTL, RAS_ATHUB_ERR_EVENT_INTERRUPT_STATUS)) {
578 /* driver has to clear the interrupt status when bif ring is disabled */
579 bif_doorbell_intr_cntl = REG_SET_FIELD(bif_doorbell_intr_cntl,
580 BIF_BX0_BIF_DOORBELL_INT_CNTL,
581 RAS_ATHUB_ERR_EVENT_INTERRUPT_CLEAR, 1);
582
583 WREG32_SOC15(NBIO, 0, regBIF_BX0_BIF_DOORBELL_INT_CNTL, bif_doorbell_intr_cntl);
584
585 amdgpu_ras_global_ras_isr(adev);
586 }
587}
588
589static int nbio_v7_9_set_ras_controller_irq_state(struct amdgpu_device *adev,
590 struct amdgpu_irq_src *src,
591 unsigned type,
592 enum amdgpu_interrupt_state state)
593{
594 /* Dummy function, there is no initialization operation in driver */
595
596 return 0;
597}
598
599static int nbio_v7_9_process_ras_controller_irq(struct amdgpu_device *adev,
600 struct amdgpu_irq_src *source,
601 struct amdgpu_iv_entry *entry)
602{
603 /* By design, the ih cookie for ras_controller_irq should be written
604 * to BIFring instead of general iv ring. However, due to known bif ring
605 * hw bug, it has to be disabled. There is no chance the process function
606 * will be involked. Just left it as a dummy one.
607 */
608 return 0;
609}
610
611static int nbio_v7_9_set_ras_err_event_athub_irq_state(struct amdgpu_device *adev,
612 struct amdgpu_irq_src *src,
613 unsigned type,
614 enum amdgpu_interrupt_state state)
615{
616 /* Dummy function, there is no initialization operation in driver */
617
618 return 0;
619}
620
621static int nbio_v7_9_process_err_event_athub_irq(struct amdgpu_device *adev,
622 struct amdgpu_irq_src *source,
623 struct amdgpu_iv_entry *entry)
624{
625 /* By design, the ih cookie for err_event_athub_irq should be written
626 * to BIFring instead of general iv ring. However, due to known bif ring
627 * hw bug, it has to be disabled. There is no chance the process function
628 * will be involked. Just left it as a dummy one.
629 */
630 return 0;
631}
632
633static const struct amdgpu_irq_src_funcs nbio_v7_9_ras_controller_irq_funcs = {
634 .set = nbio_v7_9_set_ras_controller_irq_state,
635 .process = nbio_v7_9_process_ras_controller_irq,
636};
637
638static const struct amdgpu_irq_src_funcs nbio_v7_9_ras_err_event_athub_irq_funcs = {
639 .set = nbio_v7_9_set_ras_err_event_athub_irq_state,
640 .process = nbio_v7_9_process_err_event_athub_irq,
641};
642
643static int nbio_v7_9_init_ras_controller_interrupt (struct amdgpu_device *adev)
644{
645 int r;
646
647 /* init the irq funcs */
648 adev->nbio.ras_controller_irq.funcs =
649 &nbio_v7_9_ras_controller_irq_funcs;
650 adev->nbio.ras_controller_irq.num_types = 1;
651
652 /* register ras controller interrupt */
653 r = amdgpu_irq_add_id(adev, client_id: SOC15_IH_CLIENTID_BIF,
654 NBIF_7_4__SRCID__RAS_CONTROLLER_INTERRUPT,
655 source: &adev->nbio.ras_controller_irq);
656
657 return r;
658}
659
660static int nbio_v7_9_init_ras_err_event_athub_interrupt (struct amdgpu_device *adev)
661{
662
663 int r;
664
665 /* init the irq funcs */
666 adev->nbio.ras_err_event_athub_irq.funcs =
667 &nbio_v7_9_ras_err_event_athub_irq_funcs;
668 adev->nbio.ras_err_event_athub_irq.num_types = 1;
669
670 /* register ras err event athub interrupt */
671 r = amdgpu_irq_add_id(adev, client_id: SOC15_IH_CLIENTID_BIF,
672 NBIF_7_4__SRCID__ERREVENT_ATHUB_INTERRUPT,
673 source: &adev->nbio.ras_err_event_athub_irq);
674
675 return r;
676}
677
678const struct amdgpu_ras_block_hw_ops nbio_v7_9_ras_hw_ops = {
679 .query_ras_error_count = nbio_v7_9_query_ras_error_count,
680};
681
682struct amdgpu_nbio_ras nbio_v7_9_ras = {
683 .ras_block = {
684 .ras_comm = {
685 .name = "pcie_bif",
686 .block = AMDGPU_RAS_BLOCK__PCIE_BIF,
687 .type = AMDGPU_RAS_ERROR__MULTI_UNCORRECTABLE,
688 },
689 .hw_ops = &nbio_v7_9_ras_hw_ops,
690 .ras_late_init = amdgpu_nbio_ras_late_init,
691 },
692 .handle_ras_controller_intr_no_bifring = nbio_v7_9_handle_ras_controller_intr_no_bifring,
693 .handle_ras_err_event_athub_intr_no_bifring = nbio_v7_9_handle_ras_err_event_athub_intr_no_bifring,
694 .init_ras_controller_interrupt = nbio_v7_9_init_ras_controller_interrupt,
695 .init_ras_err_event_athub_interrupt = nbio_v7_9_init_ras_err_event_athub_interrupt,
696};
697

source code of linux/drivers/gpu/drm/amd/amdgpu/nbio_v7_9.c