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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#include "amdgpu.h"
24#include "amdgpu_atombios.h"
25#include "nbio_v2_3.h"
26
27#include "nbio/nbio_2_3_default.h"
28#include "nbio/nbio_2_3_offset.h"
29#include "nbio/nbio_2_3_sh_mask.h"
30#include <uapi/linux/kfd_ioctl.h>
31#include <linux/device.h>
32#include <linux/pci.h>
33
34#define smnPCIE_CONFIG_CNTL 0x11180044
35#define smnCPM_CONTROL 0x11180460
36#define smnPCIE_CNTL2 0x11180070
37#define smnPCIE_LC_CNTL 0x11140280
38#define smnPCIE_LC_CNTL3 0x111402d4
39#define smnPCIE_LC_CNTL6 0x111402ec
40#define smnPCIE_LC_CNTL7 0x111402f0
41#define smnBIF_CFG_DEV0_EPF0_DEVICE_CNTL2 0x1014008c
42#define smnRCC_EP_DEV0_0_EP_PCIE_TX_LTR_CNTL 0x10123538
43#define smnBIF_CFG_DEV0_EPF0_PCIE_LTR_CAP 0x10140324
44#define smnPSWUSP0_PCIE_LC_CNTL2 0x111402c4
45#define smnNBIF_MGCG_CTRL_LCLK 0x1013a21c
46
47#define mmBIF_SDMA2_DOORBELL_RANGE 0x01d6
48#define mmBIF_SDMA2_DOORBELL_RANGE_BASE_IDX 2
49#define mmBIF_SDMA3_DOORBELL_RANGE 0x01d7
50#define mmBIF_SDMA3_DOORBELL_RANGE_BASE_IDX 2
51
52#define mmBIF_MMSCH1_DOORBELL_RANGE 0x01d8
53#define mmBIF_MMSCH1_DOORBELL_RANGE_BASE_IDX 2
54
55#define smnPCIE_LC_LINK_WIDTH_CNTL 0x11140288
56
57#define GPU_HDP_FLUSH_DONE__RSVD_ENG0_MASK 0x00001000L /* Don't use. Firmware uses this bit internally */
58#define GPU_HDP_FLUSH_DONE__RSVD_ENG1_MASK 0x00002000L
59#define GPU_HDP_FLUSH_DONE__RSVD_ENG2_MASK 0x00004000L
60#define GPU_HDP_FLUSH_DONE__RSVD_ENG3_MASK 0x00008000L
61#define GPU_HDP_FLUSH_DONE__RSVD_ENG4_MASK 0x00010000L
62#define GPU_HDP_FLUSH_DONE__RSVD_ENG5_MASK 0x00020000L
63#define GPU_HDP_FLUSH_DONE__RSVD_ENG6_MASK 0x00040000L
64#define GPU_HDP_FLUSH_DONE__RSVD_ENG7_MASK 0x00080000L
65#define GPU_HDP_FLUSH_DONE__RSVD_ENG8_MASK 0x00100000L
66
67static void nbio_v2_3_remap_hdp_registers(struct amdgpu_device *adev)
68{
69 WREG32_SOC15(NBIO, 0, mmREMAP_HDP_MEM_FLUSH_CNTL,
70 adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_MEM_FLUSH_CNTL);
71 WREG32_SOC15(NBIO, 0, mmREMAP_HDP_REG_FLUSH_CNTL,
72 adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_REG_FLUSH_CNTL);
73}
74
75static u32 nbio_v2_3_get_rev_id(struct amdgpu_device *adev)
76{
77 u32 tmp;
78
79 /*
80 * guest vm gets 0xffffffff when reading RCC_DEV0_EPF0_STRAP0,
81 * therefore we force rev_id to 0 (which is the default value)
82 */
83 if (amdgpu_sriov_vf(adev)) {
84 return 0;
85 }
86
87 tmp = RREG32_SOC15(NBIO, 0, mmRCC_DEV0_EPF0_STRAP0);
88 tmp &= RCC_DEV0_EPF0_STRAP0__STRAP_ATI_REV_ID_DEV0_F0_MASK;
89 tmp >>= RCC_DEV0_EPF0_STRAP0__STRAP_ATI_REV_ID_DEV0_F0__SHIFT;
90
91 return tmp;
92}
93
94static void nbio_v2_3_mc_access_enable(struct amdgpu_device *adev, bool enable)
95{
96 if (enable)
97 WREG32_SOC15(NBIO, 0, mmBIF_FB_EN,
98 BIF_FB_EN__FB_READ_EN_MASK |
99 BIF_FB_EN__FB_WRITE_EN_MASK);
100 else
101 WREG32_SOC15(NBIO, 0, mmBIF_FB_EN, 0);
102}
103
104static u32 nbio_v2_3_get_memsize(struct amdgpu_device *adev)
105{
106 return RREG32_SOC15(NBIO, 0, mmRCC_DEV0_EPF0_RCC_CONFIG_MEMSIZE);
107}
108
109static void nbio_v2_3_sdma_doorbell_range(struct amdgpu_device *adev, int instance,
110 bool use_doorbell, int doorbell_index,
111 int doorbell_size)
112{
113 u32 reg = instance == 0 ? SOC15_REG_OFFSET(NBIO, 0, mmBIF_SDMA0_DOORBELL_RANGE) :
114 instance == 1 ? SOC15_REG_OFFSET(NBIO, 0, mmBIF_SDMA1_DOORBELL_RANGE) :
115 instance == 2 ? SOC15_REG_OFFSET(NBIO, 0, mmBIF_SDMA2_DOORBELL_RANGE) :
116 SOC15_REG_OFFSET(NBIO, 0, mmBIF_SDMA3_DOORBELL_RANGE);
117
118 u32 doorbell_range = RREG32(reg);
119
120 if (use_doorbell) {
121 doorbell_range = REG_SET_FIELD(doorbell_range,
122 BIF_SDMA0_DOORBELL_RANGE, OFFSET,
123 doorbell_index);
124 doorbell_range = REG_SET_FIELD(doorbell_range,
125 BIF_SDMA0_DOORBELL_RANGE, SIZE,
126 doorbell_size);
127 } else
128 doorbell_range = REG_SET_FIELD(doorbell_range,
129 BIF_SDMA0_DOORBELL_RANGE, SIZE,
130 0);
131
132 WREG32(reg, doorbell_range);
133}
134
135static void nbio_v2_3_vcn_doorbell_range(struct amdgpu_device *adev, bool use_doorbell,
136 int doorbell_index, int instance)
137{
138 u32 reg = instance ? SOC15_REG_OFFSET(NBIO, 0, mmBIF_MMSCH1_DOORBELL_RANGE) :
139 SOC15_REG_OFFSET(NBIO, 0, mmBIF_MMSCH0_DOORBELL_RANGE);
140
141 u32 doorbell_range = RREG32(reg);
142
143 if (use_doorbell) {
144 doorbell_range = REG_SET_FIELD(doorbell_range,
145 BIF_MMSCH0_DOORBELL_RANGE, OFFSET,
146 doorbell_index);
147 doorbell_range = REG_SET_FIELD(doorbell_range,
148 BIF_MMSCH0_DOORBELL_RANGE, SIZE, 8);
149 } else
150 doorbell_range = REG_SET_FIELD(doorbell_range,
151 BIF_MMSCH0_DOORBELL_RANGE, SIZE, 0);
152
153 WREG32(reg, doorbell_range);
154}
155
156static void nbio_v2_3_enable_doorbell_aperture(struct amdgpu_device *adev,
157 bool enable)
158{
159 WREG32_FIELD15(NBIO, 0, RCC_DEV0_EPF0_RCC_DOORBELL_APER_EN, BIF_DOORBELL_APER_EN,
160 enable ? 1 : 0);
161}
162
163static void nbio_v2_3_enable_doorbell_selfring_aperture(struct amdgpu_device *adev,
164 bool enable)
165{
166 u32 tmp = 0;
167
168 if (enable) {
169 tmp = REG_SET_FIELD(tmp, BIF_BX_PF_DOORBELL_SELFRING_GPA_APER_CNTL,
170 DOORBELL_SELFRING_GPA_APER_EN, 1) |
171 REG_SET_FIELD(tmp, BIF_BX_PF_DOORBELL_SELFRING_GPA_APER_CNTL,
172 DOORBELL_SELFRING_GPA_APER_MODE, 1) |
173 REG_SET_FIELD(tmp, BIF_BX_PF_DOORBELL_SELFRING_GPA_APER_CNTL,
174 DOORBELL_SELFRING_GPA_APER_SIZE, 0);
175
176 WREG32_SOC15(NBIO, 0, mmBIF_BX_PF_DOORBELL_SELFRING_GPA_APER_BASE_LOW,
177 lower_32_bits(adev->doorbell.base));
178 WREG32_SOC15(NBIO, 0, mmBIF_BX_PF_DOORBELL_SELFRING_GPA_APER_BASE_HIGH,
179 upper_32_bits(adev->doorbell.base));
180 }
181
182 WREG32_SOC15(NBIO, 0, mmBIF_BX_PF_DOORBELL_SELFRING_GPA_APER_CNTL,
183 tmp);
184}
185
186
187static void nbio_v2_3_ih_doorbell_range(struct amdgpu_device *adev,
188 bool use_doorbell, int doorbell_index)
189{
190 u32 ih_doorbell_range = RREG32_SOC15(NBIO, 0, mmBIF_IH_DOORBELL_RANGE);
191
192 if (use_doorbell) {
193 ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range,
194 BIF_IH_DOORBELL_RANGE, OFFSET,
195 doorbell_index);
196 ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range,
197 BIF_IH_DOORBELL_RANGE, SIZE,
198 2);
199 } else
200 ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range,
201 BIF_IH_DOORBELL_RANGE, SIZE,
202 0);
203
204 WREG32_SOC15(NBIO, 0, mmBIF_IH_DOORBELL_RANGE, ih_doorbell_range);
205}
206
207static void nbio_v2_3_ih_control(struct amdgpu_device *adev)
208{
209 u32 interrupt_cntl;
210
211 /* setup interrupt control */
212 WREG32_SOC15(NBIO, 0, mmINTERRUPT_CNTL2, adev->dummy_page_addr >> 8);
213
214 interrupt_cntl = RREG32_SOC15(NBIO, 0, mmINTERRUPT_CNTL);
215 /*
216 * INTERRUPT_CNTL__IH_DUMMY_RD_OVERRIDE_MASK=0 - dummy read disabled with msi, enabled without msi
217 * INTERRUPT_CNTL__IH_DUMMY_RD_OVERRIDE_MASK=1 - dummy read controlled by IH_DUMMY_RD_EN
218 */
219 interrupt_cntl = REG_SET_FIELD(interrupt_cntl, INTERRUPT_CNTL,
220 IH_DUMMY_RD_OVERRIDE, 0);
221
222 /* INTERRUPT_CNTL__IH_REQ_NONSNOOP_EN_MASK=1 if ring is in non-cacheable memory, e.g., vram */
223 interrupt_cntl = REG_SET_FIELD(interrupt_cntl, INTERRUPT_CNTL,
224 IH_REQ_NONSNOOP_EN, 0);
225
226 WREG32_SOC15(NBIO, 0, mmINTERRUPT_CNTL, interrupt_cntl);
227}
228
229static void nbio_v2_3_update_medium_grain_clock_gating(struct amdgpu_device *adev,
230 bool enable)
231{
232 uint32_t def, data;
233
234 if (!(adev->cg_flags & AMD_CG_SUPPORT_BIF_MGCG))
235 return;
236
237 def = data = RREG32_PCIE(smnCPM_CONTROL);
238 if (enable) {
239 data |= (CPM_CONTROL__LCLK_DYN_GATE_ENABLE_MASK |
240 CPM_CONTROL__TXCLK_DYN_GATE_ENABLE_MASK |
241 CPM_CONTROL__TXCLK_LCNT_GATE_ENABLE_MASK |
242 CPM_CONTROL__TXCLK_REGS_GATE_ENABLE_MASK |
243 CPM_CONTROL__TXCLK_PRBS_GATE_ENABLE_MASK |
244 CPM_CONTROL__REFCLK_REGS_GATE_ENABLE_MASK);
245 } else {
246 data &= ~(CPM_CONTROL__LCLK_DYN_GATE_ENABLE_MASK |
247 CPM_CONTROL__TXCLK_DYN_GATE_ENABLE_MASK |
248 CPM_CONTROL__TXCLK_LCNT_GATE_ENABLE_MASK |
249 CPM_CONTROL__TXCLK_REGS_GATE_ENABLE_MASK |
250 CPM_CONTROL__TXCLK_PRBS_GATE_ENABLE_MASK |
251 CPM_CONTROL__REFCLK_REGS_GATE_ENABLE_MASK);
252 }
253
254 if (def != data)
255 WREG32_PCIE(smnCPM_CONTROL, data);
256}
257
258static void nbio_v2_3_update_medium_grain_light_sleep(struct amdgpu_device *adev,
259 bool enable)
260{
261 uint32_t def, data;
262
263 if (!(adev->cg_flags & AMD_CG_SUPPORT_BIF_LS))
264 return;
265
266 def = data = RREG32_PCIE(smnPCIE_CNTL2);
267 if (enable) {
268 data |= (PCIE_CNTL2__SLV_MEM_LS_EN_MASK |
269 PCIE_CNTL2__MST_MEM_LS_EN_MASK |
270 PCIE_CNTL2__REPLAY_MEM_LS_EN_MASK);
271 } else {
272 data &= ~(PCIE_CNTL2__SLV_MEM_LS_EN_MASK |
273 PCIE_CNTL2__MST_MEM_LS_EN_MASK |
274 PCIE_CNTL2__REPLAY_MEM_LS_EN_MASK);
275 }
276
277 if (def != data)
278 WREG32_PCIE(smnPCIE_CNTL2, data);
279}
280
281static void nbio_v2_3_get_clockgating_state(struct amdgpu_device *adev,
282 u64 *flags)
283{
284 int data;
285
286 /* AMD_CG_SUPPORT_BIF_MGCG */
287 data = RREG32_PCIE(smnCPM_CONTROL);
288 if (data & CPM_CONTROL__LCLK_DYN_GATE_ENABLE_MASK)
289 *flags |= AMD_CG_SUPPORT_BIF_MGCG;
290
291 /* AMD_CG_SUPPORT_BIF_LS */
292 data = RREG32_PCIE(smnPCIE_CNTL2);
293 if (data & PCIE_CNTL2__SLV_MEM_LS_EN_MASK)
294 *flags |= AMD_CG_SUPPORT_BIF_LS;
295}
296
297static u32 nbio_v2_3_get_hdp_flush_req_offset(struct amdgpu_device *adev)
298{
299 return SOC15_REG_OFFSET(NBIO, 0, mmBIF_BX_PF_GPU_HDP_FLUSH_REQ);
300}
301
302static u32 nbio_v2_3_get_hdp_flush_done_offset(struct amdgpu_device *adev)
303{
304 return SOC15_REG_OFFSET(NBIO, 0, mmBIF_BX_PF_GPU_HDP_FLUSH_DONE);
305}
306
307static u32 nbio_v2_3_get_pcie_index_offset(struct amdgpu_device *adev)
308{
309 return SOC15_REG_OFFSET(NBIO, 0, mmPCIE_INDEX2);
310}
311
312static u32 nbio_v2_3_get_pcie_data_offset(struct amdgpu_device *adev)
313{
314 return SOC15_REG_OFFSET(NBIO, 0, mmPCIE_DATA2);
315}
316
317const struct nbio_hdp_flush_reg nbio_v2_3_hdp_flush_reg = {
318 .ref_and_mask_cp0 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP0_MASK,
319 .ref_and_mask_cp1 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP1_MASK,
320 .ref_and_mask_cp2 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP2_MASK,
321 .ref_and_mask_cp3 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP3_MASK,
322 .ref_and_mask_cp4 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP4_MASK,
323 .ref_and_mask_cp5 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP5_MASK,
324 .ref_and_mask_cp6 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP6_MASK,
325 .ref_and_mask_cp7 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP7_MASK,
326 .ref_and_mask_cp8 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP8_MASK,
327 .ref_and_mask_cp9 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP9_MASK,
328 .ref_and_mask_sdma0 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__SDMA0_MASK,
329 .ref_and_mask_sdma1 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__SDMA1_MASK,
330};
331
332static void nbio_v2_3_init_registers(struct amdgpu_device *adev)
333{
334 uint32_t def, data;
335
336 def = data = RREG32_PCIE(smnPCIE_CONFIG_CNTL);
337 data = REG_SET_FIELD(data, PCIE_CONFIG_CNTL, CI_SWUS_MAX_READ_REQUEST_SIZE_MODE, 1);
338 data = REG_SET_FIELD(data, PCIE_CONFIG_CNTL, CI_SWUS_MAX_READ_REQUEST_SIZE_PRIV, 1);
339
340 if (def != data)
341 WREG32_PCIE(smnPCIE_CONFIG_CNTL, data);
342
343 if (amdgpu_sriov_vf(adev))
344 adev->rmmio_remap.reg_offset = SOC15_REG_OFFSET(NBIO, 0,
345 mmBIF_BX_DEV0_EPF0_VF0_HDP_MEM_COHERENCY_FLUSH_CNTL) << 2;
346}
347
348#define NAVI10_PCIE__LC_L0S_INACTIVITY_DEFAULT 0x00000000 // off by default, no gains over L1
349#define NAVI10_PCIE__LC_L1_INACTIVITY_DEFAULT 0x0000000A // 1=1us, 9=1ms, 10=4ms
350#define NAVI10_PCIE__LC_L1_INACTIVITY_TBT_DEFAULT 0x0000000E // 400ms
351
352static void nbio_v2_3_enable_aspm(struct amdgpu_device *adev,
353 bool enable)
354{
355 uint32_t def, data;
356
357 def = data = RREG32_PCIE(smnPCIE_LC_CNTL);
358
359 if (enable) {
360 /* Disable ASPM L0s/L1 first */
361 data &= ~(PCIE_LC_CNTL__LC_L0S_INACTIVITY_MASK | PCIE_LC_CNTL__LC_L1_INACTIVITY_MASK);
362
363 data |= NAVI10_PCIE__LC_L0S_INACTIVITY_DEFAULT << PCIE_LC_CNTL__LC_L0S_INACTIVITY__SHIFT;
364
365 if (dev_is_removable(&adev->pdev->dev))
366 data |= NAVI10_PCIE__LC_L1_INACTIVITY_TBT_DEFAULT << PCIE_LC_CNTL__LC_L1_INACTIVITY__SHIFT;
367 else
368 data |= NAVI10_PCIE__LC_L1_INACTIVITY_DEFAULT << PCIE_LC_CNTL__LC_L1_INACTIVITY__SHIFT;
369
370 data &= ~PCIE_LC_CNTL__LC_PMI_TO_L1_DIS_MASK;
371 } else {
372 /* Disbale ASPM L1 */
373 data &= ~PCIE_LC_CNTL__LC_L1_INACTIVITY_MASK;
374 /* Disable ASPM TxL0s */
375 data &= ~PCIE_LC_CNTL__LC_L0S_INACTIVITY_MASK;
376 /* Disable ACPI L1 */
377 data |= PCIE_LC_CNTL__LC_PMI_TO_L1_DIS_MASK;
378 }
379
380 if (def != data)
381 WREG32_PCIE(smnPCIE_LC_CNTL, data);
382}
383
384#ifdef CONFIG_PCIEASPM
385static void nbio_v2_3_program_ltr(struct amdgpu_device *adev)
386{
387 uint32_t def, data;
388
389 WREG32_PCIE(smnRCC_EP_DEV0_0_EP_PCIE_TX_LTR_CNTL, 0x75EB);
390
391 def = data = RREG32_SOC15(NBIO, 0, mmRCC_BIF_STRAP2);
392 data &= ~RCC_BIF_STRAP2__STRAP_LTR_IN_ASPML1_DIS_MASK;
393 if (def != data)
394 WREG32_SOC15(NBIO, 0, mmRCC_BIF_STRAP2, data);
395
396 def = data = RREG32_PCIE(smnRCC_EP_DEV0_0_EP_PCIE_TX_LTR_CNTL);
397 data &= ~EP_PCIE_TX_LTR_CNTL__LTR_PRIV_MSG_DIS_IN_PM_NON_D0_MASK;
398 if (def != data)
399 WREG32_PCIE(smnRCC_EP_DEV0_0_EP_PCIE_TX_LTR_CNTL, data);
400
401 def = data = RREG32_PCIE(smnBIF_CFG_DEV0_EPF0_DEVICE_CNTL2);
402 data |= BIF_CFG_DEV0_EPF0_DEVICE_CNTL2__LTR_EN_MASK;
403 if (def != data)
404 WREG32_PCIE(smnBIF_CFG_DEV0_EPF0_DEVICE_CNTL2, data);
405}
406#endif
407
408static void nbio_v2_3_program_aspm(struct amdgpu_device *adev)
409{
410#ifdef CONFIG_PCIEASPM
411 uint32_t def, data;
412
413 def = data = RREG32_PCIE(smnPCIE_LC_CNTL);
414 data &= ~PCIE_LC_CNTL__LC_L1_INACTIVITY_MASK;
415 data &= ~PCIE_LC_CNTL__LC_L0S_INACTIVITY_MASK;
416 data |= PCIE_LC_CNTL__LC_PMI_TO_L1_DIS_MASK;
417 if (def != data)
418 WREG32_PCIE(smnPCIE_LC_CNTL, data);
419
420 def = data = RREG32_PCIE(smnPCIE_LC_CNTL7);
421 data |= PCIE_LC_CNTL7__LC_NBIF_ASPM_INPUT_EN_MASK;
422 if (def != data)
423 WREG32_PCIE(smnPCIE_LC_CNTL7, data);
424
425 def = data = RREG32_PCIE(smnNBIF_MGCG_CTRL_LCLK);
426 data |= NBIF_MGCG_CTRL_LCLK__NBIF_MGCG_REG_DIS_LCLK_MASK;
427 if (def != data)
428 WREG32_PCIE(smnNBIF_MGCG_CTRL_LCLK, data);
429
430 def = data = RREG32_PCIE(smnPCIE_LC_CNTL3);
431 data |= PCIE_LC_CNTL3__LC_DSC_DONT_ENTER_L23_AFTER_PME_ACK_MASK;
432 if (def != data)
433 WREG32_PCIE(smnPCIE_LC_CNTL3, data);
434
435 def = data = RREG32_SOC15(NBIO, 0, mmRCC_BIF_STRAP3);
436 data &= ~RCC_BIF_STRAP3__STRAP_VLINK_ASPM_IDLE_TIMER_MASK;
437 data &= ~RCC_BIF_STRAP3__STRAP_VLINK_PM_L1_ENTRY_TIMER_MASK;
438 if (def != data)
439 WREG32_SOC15(NBIO, 0, mmRCC_BIF_STRAP3, data);
440
441 def = data = RREG32_SOC15(NBIO, 0, mmRCC_BIF_STRAP5);
442 data &= ~RCC_BIF_STRAP5__STRAP_VLINK_LDN_ENTRY_TIMER_MASK;
443 if (def != data)
444 WREG32_SOC15(NBIO, 0, mmRCC_BIF_STRAP5, data);
445
446 def = data = RREG32_PCIE(smnBIF_CFG_DEV0_EPF0_DEVICE_CNTL2);
447 data &= ~BIF_CFG_DEV0_EPF0_DEVICE_CNTL2__LTR_EN_MASK;
448 if (def != data)
449 WREG32_PCIE(smnBIF_CFG_DEV0_EPF0_DEVICE_CNTL2, data);
450
451 WREG32_PCIE(smnBIF_CFG_DEV0_EPF0_PCIE_LTR_CAP, 0x10011001);
452
453 def = data = RREG32_PCIE(smnPSWUSP0_PCIE_LC_CNTL2);
454 data |= PSWUSP0_PCIE_LC_CNTL2__LC_ALLOW_PDWN_IN_L1_MASK |
455 PSWUSP0_PCIE_LC_CNTL2__LC_ALLOW_PDWN_IN_L23_MASK;
456 data &= ~PSWUSP0_PCIE_LC_CNTL2__LC_RCV_L0_TO_RCV_L0S_DIS_MASK;
457 if (def != data)
458 WREG32_PCIE(smnPSWUSP0_PCIE_LC_CNTL2, data);
459
460 def = data = RREG32_PCIE(smnPCIE_LC_CNTL6);
461 data |= PCIE_LC_CNTL6__LC_L1_POWERDOWN_MASK |
462 PCIE_LC_CNTL6__LC_RX_L0S_STANDBY_EN_MASK;
463 if (def != data)
464 WREG32_PCIE(smnPCIE_LC_CNTL6, data);
465
466 /* Don't bother about LTR if LTR is not enabled
467 * in the path */
468 if (adev->pdev->ltr_path)
469 nbio_v2_3_program_ltr(adev);
470
471 def = data = RREG32_SOC15(NBIO, 0, mmRCC_BIF_STRAP3);
472 data |= 0x5DE0 << RCC_BIF_STRAP3__STRAP_VLINK_ASPM_IDLE_TIMER__SHIFT;
473 data |= 0x0010 << RCC_BIF_STRAP3__STRAP_VLINK_PM_L1_ENTRY_TIMER__SHIFT;
474 if (def != data)
475 WREG32_SOC15(NBIO, 0, mmRCC_BIF_STRAP3, data);
476
477 def = data = RREG32_SOC15(NBIO, 0, mmRCC_BIF_STRAP5);
478 data |= 0x0010 << RCC_BIF_STRAP5__STRAP_VLINK_LDN_ENTRY_TIMER__SHIFT;
479 if (def != data)
480 WREG32_SOC15(NBIO, 0, mmRCC_BIF_STRAP5, data);
481
482 def = data = RREG32_PCIE(smnPCIE_LC_CNTL);
483 data |= NAVI10_PCIE__LC_L0S_INACTIVITY_DEFAULT << PCIE_LC_CNTL__LC_L0S_INACTIVITY__SHIFT;
484 if (dev_is_removable(&adev->pdev->dev))
485 data |= NAVI10_PCIE__LC_L1_INACTIVITY_TBT_DEFAULT << PCIE_LC_CNTL__LC_L1_INACTIVITY__SHIFT;
486 else
487 data |= NAVI10_PCIE__LC_L1_INACTIVITY_DEFAULT << PCIE_LC_CNTL__LC_L1_INACTIVITY__SHIFT;
488 data &= ~PCIE_LC_CNTL__LC_PMI_TO_L1_DIS_MASK;
489 if (def != data)
490 WREG32_PCIE(smnPCIE_LC_CNTL, data);
491
492 def = data = RREG32_PCIE(smnPCIE_LC_CNTL3);
493 data &= ~PCIE_LC_CNTL3__LC_DSC_DONT_ENTER_L23_AFTER_PME_ACK_MASK;
494 if (def != data)
495 WREG32_PCIE(smnPCIE_LC_CNTL3, data);
496#endif
497}
498
499static void nbio_v2_3_apply_lc_spc_mode_wa(struct amdgpu_device *adev)
500{
501 uint32_t reg_data = 0;
502 uint32_t link_width = 0;
503
504 if (!((adev->asic_type >= CHIP_NAVI10) &&
505 (adev->asic_type <= CHIP_NAVI12)))
506 return;
507
508 reg_data = RREG32_PCIE(smnPCIE_LC_LINK_WIDTH_CNTL);
509 link_width = (reg_data & PCIE_LC_LINK_WIDTH_CNTL__LC_LINK_WIDTH_RD_MASK)
510 >> PCIE_LC_LINK_WIDTH_CNTL__LC_LINK_WIDTH_RD__SHIFT;
511
512 /*
513 * Program PCIE_LC_CNTL6.LC_SPC_MODE_8GT to 0x2 (4 symbols per clock data)
514 * if link_width is 0x3 (x4)
515 */
516 if (0x3 == link_width) {
517 reg_data = RREG32_PCIE(smnPCIE_LC_CNTL6);
518 reg_data &= ~PCIE_LC_CNTL6__LC_SPC_MODE_8GT_MASK;
519 reg_data |= (0x2 << PCIE_LC_CNTL6__LC_SPC_MODE_8GT__SHIFT);
520 WREG32_PCIE(smnPCIE_LC_CNTL6, reg_data);
521 }
522}
523
524static void nbio_v2_3_apply_l1_link_width_reconfig_wa(struct amdgpu_device *adev)
525{
526 uint32_t reg_data = 0;
527
528 if (adev->asic_type != CHIP_NAVI10)
529 return;
530
531 reg_data = RREG32_PCIE(smnPCIE_LC_LINK_WIDTH_CNTL);
532 reg_data |= PCIE_LC_LINK_WIDTH_CNTL__LC_L1_RECONFIG_EN_MASK;
533 WREG32_PCIE(smnPCIE_LC_LINK_WIDTH_CNTL, reg_data);
534}
535
536static void nbio_v2_3_clear_doorbell_interrupt(struct amdgpu_device *adev)
537{
538 uint32_t reg, reg_data;
539
540 if (amdgpu_ip_version(adev, NBIO_HWIP, 0) != IP_VERSION(3, 3, 0))
541 return;
542
543 reg = RREG32_SOC15(NBIO, 0, mmBIF_RB_CNTL);
544
545 /* Clear Interrupt Status
546 */
547 if ((reg & BIF_RB_CNTL__RB_ENABLE_MASK) == 0) {
548 reg = RREG32_SOC15(NBIO, 0, mmBIF_DOORBELL_INT_CNTL);
549 if (reg & BIF_DOORBELL_INT_CNTL__DOORBELL_INTERRUPT_STATUS_MASK) {
550 reg_data = 1 << BIF_DOORBELL_INT_CNTL__DOORBELL_INTERRUPT_CLEAR__SHIFT;
551 WREG32_SOC15(NBIO, 0, mmBIF_DOORBELL_INT_CNTL, reg_data);
552 }
553 }
554}
555
556const struct amdgpu_nbio_funcs nbio_v2_3_funcs = {
557 .get_hdp_flush_req_offset = nbio_v2_3_get_hdp_flush_req_offset,
558 .get_hdp_flush_done_offset = nbio_v2_3_get_hdp_flush_done_offset,
559 .get_pcie_index_offset = nbio_v2_3_get_pcie_index_offset,
560 .get_pcie_data_offset = nbio_v2_3_get_pcie_data_offset,
561 .get_rev_id = nbio_v2_3_get_rev_id,
562 .mc_access_enable = nbio_v2_3_mc_access_enable,
563 .get_memsize = nbio_v2_3_get_memsize,
564 .sdma_doorbell_range = nbio_v2_3_sdma_doorbell_range,
565 .vcn_doorbell_range = nbio_v2_3_vcn_doorbell_range,
566 .enable_doorbell_aperture = nbio_v2_3_enable_doorbell_aperture,
567 .enable_doorbell_selfring_aperture = nbio_v2_3_enable_doorbell_selfring_aperture,
568 .ih_doorbell_range = nbio_v2_3_ih_doorbell_range,
569 .update_medium_grain_clock_gating = nbio_v2_3_update_medium_grain_clock_gating,
570 .update_medium_grain_light_sleep = nbio_v2_3_update_medium_grain_light_sleep,
571 .get_clockgating_state = nbio_v2_3_get_clockgating_state,
572 .ih_control = nbio_v2_3_ih_control,
573 .init_registers = nbio_v2_3_init_registers,
574 .remap_hdp_registers = nbio_v2_3_remap_hdp_registers,
575 .enable_aspm = nbio_v2_3_enable_aspm,
576 .program_aspm = nbio_v2_3_program_aspm,
577 .apply_lc_spc_mode_wa = nbio_v2_3_apply_lc_spc_mode_wa,
578 .apply_l1_link_width_reconfig_wa = nbio_v2_3_apply_l1_link_width_reconfig_wa,
579 .clear_doorbell_interrupt = nbio_v2_3_clear_doorbell_interrupt,
580};
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#include "amdgpu.h"
24#include "amdgpu_atombios.h"
25#include "nbio_v2_3.h"
26
27#include "nbio/nbio_2_3_default.h"
28#include "nbio/nbio_2_3_offset.h"
29#include "nbio/nbio_2_3_sh_mask.h"
30#include <uapi/linux/kfd_ioctl.h>
31#include <linux/pci.h>
32
33#define smnPCIE_CONFIG_CNTL 0x11180044
34#define smnCPM_CONTROL 0x11180460
35#define smnPCIE_CNTL2 0x11180070
36#define smnPCIE_LC_CNTL 0x11140280
37#define smnPCIE_LC_CNTL3 0x111402d4
38#define smnPCIE_LC_CNTL6 0x111402ec
39#define smnPCIE_LC_CNTL7 0x111402f0
40#define smnBIF_CFG_DEV0_EPF0_DEVICE_CNTL2 0x1014008c
41#define smnRCC_EP_DEV0_0_EP_PCIE_TX_LTR_CNTL 0x10123538
42#define smnBIF_CFG_DEV0_EPF0_PCIE_LTR_CAP 0x10140324
43#define smnPSWUSP0_PCIE_LC_CNTL2 0x111402c4
44#define smnNBIF_MGCG_CTRL_LCLK 0x1013a21c
45
46#define mmBIF_SDMA2_DOORBELL_RANGE 0x01d6
47#define mmBIF_SDMA2_DOORBELL_RANGE_BASE_IDX 2
48#define mmBIF_SDMA3_DOORBELL_RANGE 0x01d7
49#define mmBIF_SDMA3_DOORBELL_RANGE_BASE_IDX 2
50
51#define mmBIF_MMSCH1_DOORBELL_RANGE 0x01d8
52#define mmBIF_MMSCH1_DOORBELL_RANGE_BASE_IDX 2
53
54#define smnPCIE_LC_LINK_WIDTH_CNTL 0x11140288
55
56static void nbio_v2_3_remap_hdp_registers(struct amdgpu_device *adev)
57{
58 WREG32_SOC15(NBIO, 0, mmREMAP_HDP_MEM_FLUSH_CNTL,
59 adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_MEM_FLUSH_CNTL);
60 WREG32_SOC15(NBIO, 0, mmREMAP_HDP_REG_FLUSH_CNTL,
61 adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_REG_FLUSH_CNTL);
62}
63
64static u32 nbio_v2_3_get_rev_id(struct amdgpu_device *adev)
65{
66 u32 tmp;
67
68 /*
69 * guest vm gets 0xffffffff when reading RCC_DEV0_EPF0_STRAP0,
70 * therefore we force rev_id to 0 (which is the default value)
71 */
72 if (amdgpu_sriov_vf(adev)) {
73 return 0;
74 }
75
76 tmp = RREG32_SOC15(NBIO, 0, mmRCC_DEV0_EPF0_STRAP0);
77 tmp &= RCC_DEV0_EPF0_STRAP0__STRAP_ATI_REV_ID_DEV0_F0_MASK;
78 tmp >>= RCC_DEV0_EPF0_STRAP0__STRAP_ATI_REV_ID_DEV0_F0__SHIFT;
79
80 return tmp;
81}
82
83static void nbio_v2_3_mc_access_enable(struct amdgpu_device *adev, bool enable)
84{
85 if (enable)
86 WREG32_SOC15(NBIO, 0, mmBIF_FB_EN,
87 BIF_FB_EN__FB_READ_EN_MASK |
88 BIF_FB_EN__FB_WRITE_EN_MASK);
89 else
90 WREG32_SOC15(NBIO, 0, mmBIF_FB_EN, 0);
91}
92
93static u32 nbio_v2_3_get_memsize(struct amdgpu_device *adev)
94{
95 return RREG32_SOC15(NBIO, 0, mmRCC_DEV0_EPF0_RCC_CONFIG_MEMSIZE);
96}
97
98static void nbio_v2_3_sdma_doorbell_range(struct amdgpu_device *adev, int instance,
99 bool use_doorbell, int doorbell_index,
100 int doorbell_size)
101{
102 u32 reg = instance == 0 ? SOC15_REG_OFFSET(NBIO, 0, mmBIF_SDMA0_DOORBELL_RANGE) :
103 instance == 1 ? SOC15_REG_OFFSET(NBIO, 0, mmBIF_SDMA1_DOORBELL_RANGE) :
104 instance == 2 ? SOC15_REG_OFFSET(NBIO, 0, mmBIF_SDMA2_DOORBELL_RANGE) :
105 SOC15_REG_OFFSET(NBIO, 0, mmBIF_SDMA3_DOORBELL_RANGE);
106
107 u32 doorbell_range = RREG32(reg);
108
109 if (use_doorbell) {
110 doorbell_range = REG_SET_FIELD(doorbell_range,
111 BIF_SDMA0_DOORBELL_RANGE, OFFSET,
112 doorbell_index);
113 doorbell_range = REG_SET_FIELD(doorbell_range,
114 BIF_SDMA0_DOORBELL_RANGE, SIZE,
115 doorbell_size);
116 } else
117 doorbell_range = REG_SET_FIELD(doorbell_range,
118 BIF_SDMA0_DOORBELL_RANGE, SIZE,
119 0);
120
121 WREG32(reg, doorbell_range);
122}
123
124static void nbio_v2_3_vcn_doorbell_range(struct amdgpu_device *adev, bool use_doorbell,
125 int doorbell_index, int instance)
126{
127 u32 reg = instance ? SOC15_REG_OFFSET(NBIO, 0, mmBIF_MMSCH1_DOORBELL_RANGE) :
128 SOC15_REG_OFFSET(NBIO, 0, mmBIF_MMSCH0_DOORBELL_RANGE);
129
130 u32 doorbell_range = RREG32(reg);
131
132 if (use_doorbell) {
133 doorbell_range = REG_SET_FIELD(doorbell_range,
134 BIF_MMSCH0_DOORBELL_RANGE, OFFSET,
135 doorbell_index);
136 doorbell_range = REG_SET_FIELD(doorbell_range,
137 BIF_MMSCH0_DOORBELL_RANGE, SIZE, 8);
138 } else
139 doorbell_range = REG_SET_FIELD(doorbell_range,
140 BIF_MMSCH0_DOORBELL_RANGE, SIZE, 0);
141
142 WREG32(reg, doorbell_range);
143}
144
145static void nbio_v2_3_enable_doorbell_aperture(struct amdgpu_device *adev,
146 bool enable)
147{
148 WREG32_FIELD15(NBIO, 0, RCC_DEV0_EPF0_RCC_DOORBELL_APER_EN, BIF_DOORBELL_APER_EN,
149 enable ? 1 : 0);
150}
151
152static void nbio_v2_3_enable_doorbell_selfring_aperture(struct amdgpu_device *adev,
153 bool enable)
154{
155 u32 tmp = 0;
156
157 if (enable) {
158 tmp = REG_SET_FIELD(tmp, BIF_BX_PF_DOORBELL_SELFRING_GPA_APER_CNTL,
159 DOORBELL_SELFRING_GPA_APER_EN, 1) |
160 REG_SET_FIELD(tmp, BIF_BX_PF_DOORBELL_SELFRING_GPA_APER_CNTL,
161 DOORBELL_SELFRING_GPA_APER_MODE, 1) |
162 REG_SET_FIELD(tmp, BIF_BX_PF_DOORBELL_SELFRING_GPA_APER_CNTL,
163 DOORBELL_SELFRING_GPA_APER_SIZE, 0);
164
165 WREG32_SOC15(NBIO, 0, mmBIF_BX_PF_DOORBELL_SELFRING_GPA_APER_BASE_LOW,
166 lower_32_bits(adev->doorbell.base));
167 WREG32_SOC15(NBIO, 0, mmBIF_BX_PF_DOORBELL_SELFRING_GPA_APER_BASE_HIGH,
168 upper_32_bits(adev->doorbell.base));
169 }
170
171 WREG32_SOC15(NBIO, 0, mmBIF_BX_PF_DOORBELL_SELFRING_GPA_APER_CNTL,
172 tmp);
173}
174
175
176static void nbio_v2_3_ih_doorbell_range(struct amdgpu_device *adev,
177 bool use_doorbell, int doorbell_index)
178{
179 u32 ih_doorbell_range = RREG32_SOC15(NBIO, 0, mmBIF_IH_DOORBELL_RANGE);
180
181 if (use_doorbell) {
182 ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range,
183 BIF_IH_DOORBELL_RANGE, OFFSET,
184 doorbell_index);
185 ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range,
186 BIF_IH_DOORBELL_RANGE, SIZE,
187 2);
188 } else
189 ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range,
190 BIF_IH_DOORBELL_RANGE, SIZE,
191 0);
192
193 WREG32_SOC15(NBIO, 0, mmBIF_IH_DOORBELL_RANGE, ih_doorbell_range);
194}
195
196static void nbio_v2_3_ih_control(struct amdgpu_device *adev)
197{
198 u32 interrupt_cntl;
199
200 /* setup interrupt control */
201 WREG32_SOC15(NBIO, 0, mmINTERRUPT_CNTL2, adev->dummy_page_addr >> 8);
202
203 interrupt_cntl = RREG32_SOC15(NBIO, 0, mmINTERRUPT_CNTL);
204 /*
205 * INTERRUPT_CNTL__IH_DUMMY_RD_OVERRIDE_MASK=0 - dummy read disabled with msi, enabled without msi
206 * INTERRUPT_CNTL__IH_DUMMY_RD_OVERRIDE_MASK=1 - dummy read controlled by IH_DUMMY_RD_EN
207 */
208 interrupt_cntl = REG_SET_FIELD(interrupt_cntl, INTERRUPT_CNTL,
209 IH_DUMMY_RD_OVERRIDE, 0);
210
211 /* INTERRUPT_CNTL__IH_REQ_NONSNOOP_EN_MASK=1 if ring is in non-cacheable memory, e.g., vram */
212 interrupt_cntl = REG_SET_FIELD(interrupt_cntl, INTERRUPT_CNTL,
213 IH_REQ_NONSNOOP_EN, 0);
214
215 WREG32_SOC15(NBIO, 0, mmINTERRUPT_CNTL, interrupt_cntl);
216}
217
218static void nbio_v2_3_update_medium_grain_clock_gating(struct amdgpu_device *adev,
219 bool enable)
220{
221 uint32_t def, data;
222
223 if (!(adev->cg_flags & AMD_CG_SUPPORT_BIF_MGCG))
224 return;
225
226 def = data = RREG32_PCIE(smnCPM_CONTROL);
227 if (enable) {
228 data |= (CPM_CONTROL__LCLK_DYN_GATE_ENABLE_MASK |
229 CPM_CONTROL__TXCLK_DYN_GATE_ENABLE_MASK |
230 CPM_CONTROL__TXCLK_LCNT_GATE_ENABLE_MASK |
231 CPM_CONTROL__TXCLK_REGS_GATE_ENABLE_MASK |
232 CPM_CONTROL__TXCLK_PRBS_GATE_ENABLE_MASK |
233 CPM_CONTROL__REFCLK_REGS_GATE_ENABLE_MASK);
234 } else {
235 data &= ~(CPM_CONTROL__LCLK_DYN_GATE_ENABLE_MASK |
236 CPM_CONTROL__TXCLK_DYN_GATE_ENABLE_MASK |
237 CPM_CONTROL__TXCLK_LCNT_GATE_ENABLE_MASK |
238 CPM_CONTROL__TXCLK_REGS_GATE_ENABLE_MASK |
239 CPM_CONTROL__TXCLK_PRBS_GATE_ENABLE_MASK |
240 CPM_CONTROL__REFCLK_REGS_GATE_ENABLE_MASK);
241 }
242
243 if (def != data)
244 WREG32_PCIE(smnCPM_CONTROL, data);
245}
246
247static void nbio_v2_3_update_medium_grain_light_sleep(struct amdgpu_device *adev,
248 bool enable)
249{
250 uint32_t def, data;
251
252 if (!(adev->cg_flags & AMD_CG_SUPPORT_BIF_LS))
253 return;
254
255 def = data = RREG32_PCIE(smnPCIE_CNTL2);
256 if (enable) {
257 data |= (PCIE_CNTL2__SLV_MEM_LS_EN_MASK |
258 PCIE_CNTL2__MST_MEM_LS_EN_MASK |
259 PCIE_CNTL2__REPLAY_MEM_LS_EN_MASK);
260 } else {
261 data &= ~(PCIE_CNTL2__SLV_MEM_LS_EN_MASK |
262 PCIE_CNTL2__MST_MEM_LS_EN_MASK |
263 PCIE_CNTL2__REPLAY_MEM_LS_EN_MASK);
264 }
265
266 if (def != data)
267 WREG32_PCIE(smnPCIE_CNTL2, data);
268}
269
270static void nbio_v2_3_get_clockgating_state(struct amdgpu_device *adev,
271 u32 *flags)
272{
273 int data;
274
275 /* AMD_CG_SUPPORT_BIF_MGCG */
276 data = RREG32_PCIE(smnCPM_CONTROL);
277 if (data & CPM_CONTROL__LCLK_DYN_GATE_ENABLE_MASK)
278 *flags |= AMD_CG_SUPPORT_BIF_MGCG;
279
280 /* AMD_CG_SUPPORT_BIF_LS */
281 data = RREG32_PCIE(smnPCIE_CNTL2);
282 if (data & PCIE_CNTL2__SLV_MEM_LS_EN_MASK)
283 *flags |= AMD_CG_SUPPORT_BIF_LS;
284}
285
286static u32 nbio_v2_3_get_hdp_flush_req_offset(struct amdgpu_device *adev)
287{
288 return SOC15_REG_OFFSET(NBIO, 0, mmBIF_BX_PF_GPU_HDP_FLUSH_REQ);
289}
290
291static u32 nbio_v2_3_get_hdp_flush_done_offset(struct amdgpu_device *adev)
292{
293 return SOC15_REG_OFFSET(NBIO, 0, mmBIF_BX_PF_GPU_HDP_FLUSH_DONE);
294}
295
296static u32 nbio_v2_3_get_pcie_index_offset(struct amdgpu_device *adev)
297{
298 return SOC15_REG_OFFSET(NBIO, 0, mmPCIE_INDEX2);
299}
300
301static u32 nbio_v2_3_get_pcie_data_offset(struct amdgpu_device *adev)
302{
303 return SOC15_REG_OFFSET(NBIO, 0, mmPCIE_DATA2);
304}
305
306const struct nbio_hdp_flush_reg nbio_v2_3_hdp_flush_reg = {
307 .ref_and_mask_cp0 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP0_MASK,
308 .ref_and_mask_cp1 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP1_MASK,
309 .ref_and_mask_cp2 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP2_MASK,
310 .ref_and_mask_cp3 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP3_MASK,
311 .ref_and_mask_cp4 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP4_MASK,
312 .ref_and_mask_cp5 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP5_MASK,
313 .ref_and_mask_cp6 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP6_MASK,
314 .ref_and_mask_cp7 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP7_MASK,
315 .ref_and_mask_cp8 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP8_MASK,
316 .ref_and_mask_cp9 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__CP9_MASK,
317 .ref_and_mask_sdma0 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__SDMA0_MASK,
318 .ref_and_mask_sdma1 = BIF_BX_PF_GPU_HDP_FLUSH_DONE__SDMA1_MASK,
319};
320
321static void nbio_v2_3_init_registers(struct amdgpu_device *adev)
322{
323 uint32_t def, data;
324
325 def = data = RREG32_PCIE(smnPCIE_CONFIG_CNTL);
326 data = REG_SET_FIELD(data, PCIE_CONFIG_CNTL, CI_SWUS_MAX_READ_REQUEST_SIZE_MODE, 1);
327 data = REG_SET_FIELD(data, PCIE_CONFIG_CNTL, CI_SWUS_MAX_READ_REQUEST_SIZE_PRIV, 1);
328
329 if (def != data)
330 WREG32_PCIE(smnPCIE_CONFIG_CNTL, data);
331}
332
333#define NAVI10_PCIE__LC_L0S_INACTIVITY_DEFAULT 0x00000000 // off by default, no gains over L1
334#define NAVI10_PCIE__LC_L1_INACTIVITY_DEFAULT 0x00000009 // 1=1us, 9=1ms
335#define NAVI10_PCIE__LC_L1_INACTIVITY_TBT_DEFAULT 0x0000000E // 4ms
336
337static void nbio_v2_3_enable_aspm(struct amdgpu_device *adev,
338 bool enable)
339{
340 uint32_t def, data;
341
342 def = data = RREG32_PCIE(smnPCIE_LC_CNTL);
343
344 if (enable) {
345 /* Disable ASPM L0s/L1 first */
346 data &= ~(PCIE_LC_CNTL__LC_L0S_INACTIVITY_MASK | PCIE_LC_CNTL__LC_L1_INACTIVITY_MASK);
347
348 data |= NAVI10_PCIE__LC_L0S_INACTIVITY_DEFAULT << PCIE_LC_CNTL__LC_L0S_INACTIVITY__SHIFT;
349
350 if (pci_is_thunderbolt_attached(adev->pdev))
351 data |= NAVI10_PCIE__LC_L1_INACTIVITY_TBT_DEFAULT << PCIE_LC_CNTL__LC_L1_INACTIVITY__SHIFT;
352 else
353 data |= NAVI10_PCIE__LC_L1_INACTIVITY_DEFAULT << PCIE_LC_CNTL__LC_L1_INACTIVITY__SHIFT;
354
355 data &= ~PCIE_LC_CNTL__LC_PMI_TO_L1_DIS_MASK;
356 } else {
357 /* Disbale ASPM L1 */
358 data &= ~PCIE_LC_CNTL__LC_L1_INACTIVITY_MASK;
359 /* Disable ASPM TxL0s */
360 data &= ~PCIE_LC_CNTL__LC_L0S_INACTIVITY_MASK;
361 /* Disable ACPI L1 */
362 data |= PCIE_LC_CNTL__LC_PMI_TO_L1_DIS_MASK;
363 }
364
365 if (def != data)
366 WREG32_PCIE(smnPCIE_LC_CNTL, data);
367}
368
369static void nbio_v2_3_program_ltr(struct amdgpu_device *adev)
370{
371 uint32_t def, data;
372
373 WREG32_PCIE(smnRCC_EP_DEV0_0_EP_PCIE_TX_LTR_CNTL, 0x75EB);
374
375 def = data = RREG32_SOC15(NBIO, 0, mmRCC_BIF_STRAP2);
376 data &= ~RCC_BIF_STRAP2__STRAP_LTR_IN_ASPML1_DIS_MASK;
377 if (def != data)
378 WREG32_SOC15(NBIO, 0, mmRCC_BIF_STRAP2, data);
379
380 def = data = RREG32_PCIE(smnRCC_EP_DEV0_0_EP_PCIE_TX_LTR_CNTL);
381 data &= ~EP_PCIE_TX_LTR_CNTL__LTR_PRIV_MSG_DIS_IN_PM_NON_D0_MASK;
382 if (def != data)
383 WREG32_PCIE(smnRCC_EP_DEV0_0_EP_PCIE_TX_LTR_CNTL, data);
384
385 def = data = RREG32_PCIE(smnBIF_CFG_DEV0_EPF0_DEVICE_CNTL2);
386 data |= BIF_CFG_DEV0_EPF0_DEVICE_CNTL2__LTR_EN_MASK;
387 if (def != data)
388 WREG32_PCIE(smnBIF_CFG_DEV0_EPF0_DEVICE_CNTL2, data);
389}
390
391static void nbio_v2_3_program_aspm(struct amdgpu_device *adev)
392{
393 uint32_t def, data;
394
395 def = data = RREG32_PCIE(smnPCIE_LC_CNTL);
396 data &= ~PCIE_LC_CNTL__LC_L1_INACTIVITY_MASK;
397 data &= ~PCIE_LC_CNTL__LC_L0S_INACTIVITY_MASK;
398 data |= PCIE_LC_CNTL__LC_PMI_TO_L1_DIS_MASK;
399 if (def != data)
400 WREG32_PCIE(smnPCIE_LC_CNTL, data);
401
402 def = data = RREG32_PCIE(smnPCIE_LC_CNTL7);
403 data |= PCIE_LC_CNTL7__LC_NBIF_ASPM_INPUT_EN_MASK;
404 if (def != data)
405 WREG32_PCIE(smnPCIE_LC_CNTL7, data);
406
407 def = data = RREG32_PCIE(smnNBIF_MGCG_CTRL_LCLK);
408 data |= NBIF_MGCG_CTRL_LCLK__NBIF_MGCG_REG_DIS_LCLK_MASK;
409 if (def != data)
410 WREG32_PCIE(smnNBIF_MGCG_CTRL_LCLK, data);
411
412 def = data = RREG32_PCIE(smnPCIE_LC_CNTL3);
413 data |= PCIE_LC_CNTL3__LC_DSC_DONT_ENTER_L23_AFTER_PME_ACK_MASK;
414 if (def != data)
415 WREG32_PCIE(smnPCIE_LC_CNTL3, data);
416
417 def = data = RREG32_SOC15(NBIO, 0, mmRCC_BIF_STRAP3);
418 data &= ~RCC_BIF_STRAP3__STRAP_VLINK_ASPM_IDLE_TIMER_MASK;
419 data &= ~RCC_BIF_STRAP3__STRAP_VLINK_PM_L1_ENTRY_TIMER_MASK;
420 if (def != data)
421 WREG32_SOC15(NBIO, 0, mmRCC_BIF_STRAP3, data);
422
423 def = data = RREG32_SOC15(NBIO, 0, mmRCC_BIF_STRAP5);
424 data &= ~RCC_BIF_STRAP5__STRAP_VLINK_LDN_ENTRY_TIMER_MASK;
425 if (def != data)
426 WREG32_SOC15(NBIO, 0, mmRCC_BIF_STRAP5, data);
427
428 def = data = RREG32_PCIE(smnBIF_CFG_DEV0_EPF0_DEVICE_CNTL2);
429 data &= ~BIF_CFG_DEV0_EPF0_DEVICE_CNTL2__LTR_EN_MASK;
430 if (def != data)
431 WREG32_PCIE(smnBIF_CFG_DEV0_EPF0_DEVICE_CNTL2, data);
432
433 WREG32_PCIE(smnBIF_CFG_DEV0_EPF0_PCIE_LTR_CAP, 0x10011001);
434
435 def = data = RREG32_PCIE(smnPSWUSP0_PCIE_LC_CNTL2);
436 data |= PSWUSP0_PCIE_LC_CNTL2__LC_ALLOW_PDWN_IN_L1_MASK |
437 PSWUSP0_PCIE_LC_CNTL2__LC_ALLOW_PDWN_IN_L23_MASK;
438 data &= ~PSWUSP0_PCIE_LC_CNTL2__LC_RCV_L0_TO_RCV_L0S_DIS_MASK;
439 if (def != data)
440 WREG32_PCIE(smnPSWUSP0_PCIE_LC_CNTL2, data);
441
442 def = data = RREG32_PCIE(smnPCIE_LC_CNTL6);
443 data |= PCIE_LC_CNTL6__LC_L1_POWERDOWN_MASK |
444 PCIE_LC_CNTL6__LC_RX_L0S_STANDBY_EN_MASK;
445 if (def != data)
446 WREG32_PCIE(smnPCIE_LC_CNTL6, data);
447
448 nbio_v2_3_program_ltr(adev);
449
450 def = data = RREG32_SOC15(NBIO, 0, mmRCC_BIF_STRAP3);
451 data |= 0x5DE0 << RCC_BIF_STRAP3__STRAP_VLINK_ASPM_IDLE_TIMER__SHIFT;
452 data |= 0x0010 << RCC_BIF_STRAP3__STRAP_VLINK_PM_L1_ENTRY_TIMER__SHIFT;
453 if (def != data)
454 WREG32_SOC15(NBIO, 0, mmRCC_BIF_STRAP3, data);
455
456 def = data = RREG32_SOC15(NBIO, 0, mmRCC_BIF_STRAP5);
457 data |= 0x0010 << RCC_BIF_STRAP5__STRAP_VLINK_LDN_ENTRY_TIMER__SHIFT;
458 if (def != data)
459 WREG32_SOC15(NBIO, 0, mmRCC_BIF_STRAP5, data);
460
461 def = data = RREG32_PCIE(smnPCIE_LC_CNTL);
462 data &= ~PCIE_LC_CNTL__LC_L0S_INACTIVITY_MASK;
463 data |= 0x9 << PCIE_LC_CNTL__LC_L1_INACTIVITY__SHIFT;
464 data |= 0x1 << PCIE_LC_CNTL__LC_PMI_TO_L1_DIS__SHIFT;
465 if (def != data)
466 WREG32_PCIE(smnPCIE_LC_CNTL, data);
467
468 def = data = RREG32_PCIE(smnPCIE_LC_CNTL3);
469 data &= ~PCIE_LC_CNTL3__LC_DSC_DONT_ENTER_L23_AFTER_PME_ACK_MASK;
470 if (def != data)
471 WREG32_PCIE(smnPCIE_LC_CNTL3, data);
472}
473
474static void nbio_v2_3_apply_lc_spc_mode_wa(struct amdgpu_device *adev)
475{
476 uint32_t reg_data = 0;
477 uint32_t link_width = 0;
478
479 if (!((adev->asic_type >= CHIP_NAVI10) &&
480 (adev->asic_type <= CHIP_NAVI12)))
481 return;
482
483 reg_data = RREG32_PCIE(smnPCIE_LC_LINK_WIDTH_CNTL);
484 link_width = (reg_data & PCIE_LC_LINK_WIDTH_CNTL__LC_LINK_WIDTH_RD_MASK)
485 >> PCIE_LC_LINK_WIDTH_CNTL__LC_LINK_WIDTH_RD__SHIFT;
486
487 /*
488 * Program PCIE_LC_CNTL6.LC_SPC_MODE_8GT to 0x2 (4 symbols per clock data)
489 * if link_width is 0x3 (x4)
490 */
491 if (0x3 == link_width) {
492 reg_data = RREG32_PCIE(smnPCIE_LC_CNTL6);
493 reg_data &= ~PCIE_LC_CNTL6__LC_SPC_MODE_8GT_MASK;
494 reg_data |= (0x2 << PCIE_LC_CNTL6__LC_SPC_MODE_8GT__SHIFT);
495 WREG32_PCIE(smnPCIE_LC_CNTL6, reg_data);
496 }
497}
498
499static void nbio_v2_3_apply_l1_link_width_reconfig_wa(struct amdgpu_device *adev)
500{
501 uint32_t reg_data = 0;
502
503 if (adev->asic_type != CHIP_NAVI10)
504 return;
505
506 reg_data = RREG32_PCIE(smnPCIE_LC_LINK_WIDTH_CNTL);
507 reg_data |= PCIE_LC_LINK_WIDTH_CNTL__LC_L1_RECONFIG_EN_MASK;
508 WREG32_PCIE(smnPCIE_LC_LINK_WIDTH_CNTL, reg_data);
509}
510
511const struct amdgpu_nbio_funcs nbio_v2_3_funcs = {
512 .get_hdp_flush_req_offset = nbio_v2_3_get_hdp_flush_req_offset,
513 .get_hdp_flush_done_offset = nbio_v2_3_get_hdp_flush_done_offset,
514 .get_pcie_index_offset = nbio_v2_3_get_pcie_index_offset,
515 .get_pcie_data_offset = nbio_v2_3_get_pcie_data_offset,
516 .get_rev_id = nbio_v2_3_get_rev_id,
517 .mc_access_enable = nbio_v2_3_mc_access_enable,
518 .get_memsize = nbio_v2_3_get_memsize,
519 .sdma_doorbell_range = nbio_v2_3_sdma_doorbell_range,
520 .vcn_doorbell_range = nbio_v2_3_vcn_doorbell_range,
521 .enable_doorbell_aperture = nbio_v2_3_enable_doorbell_aperture,
522 .enable_doorbell_selfring_aperture = nbio_v2_3_enable_doorbell_selfring_aperture,
523 .ih_doorbell_range = nbio_v2_3_ih_doorbell_range,
524 .update_medium_grain_clock_gating = nbio_v2_3_update_medium_grain_clock_gating,
525 .update_medium_grain_light_sleep = nbio_v2_3_update_medium_grain_light_sleep,
526 .get_clockgating_state = nbio_v2_3_get_clockgating_state,
527 .ih_control = nbio_v2_3_ih_control,
528 .init_registers = nbio_v2_3_init_registers,
529 .remap_hdp_registers = nbio_v2_3_remap_hdp_registers,
530 .enable_aspm = nbio_v2_3_enable_aspm,
531 .program_aspm = nbio_v2_3_program_aspm,
532 .apply_lc_spc_mode_wa = nbio_v2_3_apply_lc_spc_mode_wa,
533 .apply_l1_link_width_reconfig_wa = nbio_v2_3_apply_l1_link_width_reconfig_wa,
534};