1/*
2 * Copyright 2021 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_v7_11.h"
26
27#include "nbio/nbio_7_11_0_offset.h"
28#include "nbio/nbio_7_11_0_sh_mask.h"
29#include <uapi/linux/kfd_ioctl.h>
30
31static void nbio_v7_11_remap_hdp_registers(struct amdgpu_device *adev)
32{
33 WREG32_SOC15(NBIO, 0, regBIF_BX0_REMAP_HDP_MEM_FLUSH_CNTL,
34 adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_MEM_FLUSH_CNTL);
35 WREG32_SOC15(NBIO, 0, regBIF_BX0_REMAP_HDP_REG_FLUSH_CNTL,
36 adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_REG_FLUSH_CNTL);
37}
38
39static u32 nbio_v7_11_get_rev_id(struct amdgpu_device *adev)
40{
41 u32 tmp;
42
43 tmp = RREG32_SOC15(NBIO, 0, regRCC_STRAP1_RCC_DEV0_EPF0_STRAP0);
44 tmp &= RCC_STRAP0_RCC_DEV0_EPF0_STRAP0__STRAP_ATI_REV_ID_DEV0_F0_MASK;
45 tmp >>= RCC_STRAP0_RCC_DEV0_EPF0_STRAP0__STRAP_ATI_REV_ID_DEV0_F0__SHIFT;
46
47 return tmp;
48}
49
50static void nbio_v7_11_mc_access_enable(struct amdgpu_device *adev, bool enable)
51{
52 if (enable)
53 WREG32_SOC15(NBIO, 0, regBIF_BX1_BIF_FB_EN,
54 BIF_BX1_BIF_FB_EN__FB_READ_EN_MASK |
55 BIF_BX1_BIF_FB_EN__FB_WRITE_EN_MASK);
56 else
57 WREG32_SOC15(NBIO, 0, regBIF_BX1_BIF_FB_EN, 0);
58}
59
60static u32 nbio_v7_11_get_memsize(struct amdgpu_device *adev)
61{
62 return RREG32_SOC15(NBIO, 0, regRCC_DEV0_EPF0_0_RCC_CONFIG_MEMSIZE);
63}
64
65static void nbio_v7_11_sdma_doorbell_range(struct amdgpu_device *adev, int instance,
66 bool use_doorbell, int doorbell_index,
67 int doorbell_size)
68{
69 u32 reg = SOC15_REG_OFFSET(NBIO, 0, regGDC0_BIF_CSDMA_DOORBELL_RANGE);
70 u32 doorbell_range = RREG32_PCIE_PORT(reg);
71
72 if (use_doorbell) {
73 doorbell_range = REG_SET_FIELD(doorbell_range,
74 GDC0_BIF_CSDMA_DOORBELL_RANGE,
75 OFFSET, doorbell_index);
76 doorbell_range = REG_SET_FIELD(doorbell_range,
77 GDC0_BIF_CSDMA_DOORBELL_RANGE,
78 SIZE, doorbell_size);
79 } else {
80 doorbell_range = REG_SET_FIELD(doorbell_range,
81 GDC0_BIF_CSDMA_DOORBELL_RANGE,
82 SIZE, 0);
83 }
84
85 WREG32_PCIE_PORT(reg, doorbell_range);
86}
87
88static void nbio_v7_11_vpe_doorbell_range(struct amdgpu_device *adev, int instance,
89 bool use_doorbell, int doorbell_index,
90 int doorbell_size)
91{
92 u32 reg = instance == 0 ?
93 SOC15_REG_OFFSET(NBIO, 0, regGDC0_BIF_VPE_DOORBELL_RANGE) :
94 SOC15_REG_OFFSET(NBIO, 0, regGDC0_BIF_VPE1_DOORBELL_RANGE);
95 u32 doorbell_range = RREG32_PCIE_PORT(reg);
96
97 if (use_doorbell) {
98 doorbell_range = REG_SET_FIELD(doorbell_range,
99 GDC0_BIF_VPE_DOORBELL_RANGE,
100 OFFSET, doorbell_index);
101 doorbell_range = REG_SET_FIELD(doorbell_range,
102 GDC0_BIF_VPE_DOORBELL_RANGE,
103 SIZE, doorbell_size);
104 } else {
105 doorbell_range = REG_SET_FIELD(doorbell_range,
106 GDC0_BIF_VPE_DOORBELL_RANGE,
107 SIZE, 0);
108 }
109
110 WREG32_PCIE_PORT(reg, doorbell_range);
111}
112
113static void nbio_v7_11_vcn_doorbell_range(struct amdgpu_device *adev,
114 bool use_doorbell,
115 int doorbell_index, int instance)
116{
117 u32 reg = instance == 0 ?
118 SOC15_REG_OFFSET(NBIO, 0, regGDC0_BIF_VCN0_DOORBELL_RANGE):
119 SOC15_REG_OFFSET(NBIO, 0, regGDC0_BIF_VCN1_DOORBELL_RANGE);
120
121 u32 doorbell_range = RREG32_PCIE_PORT(reg);
122
123 if (use_doorbell) {
124 doorbell_range = REG_SET_FIELD(doorbell_range,
125 GDC0_BIF_VCN0_DOORBELL_RANGE, OFFSET,
126 doorbell_index);
127 doorbell_range = REG_SET_FIELD(doorbell_range,
128 GDC0_BIF_VCN0_DOORBELL_RANGE, SIZE, 8);
129 } else {
130 doorbell_range = REG_SET_FIELD(doorbell_range,
131 GDC0_BIF_VCN0_DOORBELL_RANGE, SIZE, 0);
132 }
133
134 WREG32_PCIE_PORT(reg, doorbell_range);
135}
136
137static void nbio_v7_11_enable_doorbell_aperture(struct amdgpu_device *adev,
138 bool enable)
139{
140 u32 reg;
141
142
143 reg = RREG32_SOC15(NBIO, 0, regRCC_DEV0_EPF0_0_RCC_DOORBELL_APER_EN);
144 reg = REG_SET_FIELD(reg, RCC_DEV0_EPF0_0_RCC_DOORBELL_APER_EN,
145 BIF_DOORBELL_APER_EN, enable ? 1 : 0);
146
147 WREG32_SOC15(NBIO, 0, regRCC_DEV0_EPF0_0_RCC_DOORBELL_APER_EN, reg);
148}
149
150static void nbio_v7_11_enable_doorbell_selfring_aperture(struct amdgpu_device *adev,
151 bool enable)
152{
153 u32 tmp = 0;
154
155 if (enable) {
156 tmp = REG_SET_FIELD(tmp, BIF_BX_PF1_DOORBELL_SELFRING_GPA_APER_CNTL,
157 DOORBELL_SELFRING_GPA_APER_EN, 1) |
158 REG_SET_FIELD(tmp, BIF_BX_PF1_DOORBELL_SELFRING_GPA_APER_CNTL,
159 DOORBELL_SELFRING_GPA_APER_MODE, 1) |
160 REG_SET_FIELD(tmp, BIF_BX_PF1_DOORBELL_SELFRING_GPA_APER_CNTL,
161 DOORBELL_SELFRING_GPA_APER_SIZE, 0);
162
163 WREG32_SOC15(NBIO, 0,
164 regBIF_BX_PF1_DOORBELL_SELFRING_GPA_APER_BASE_LOW,
165 lower_32_bits(adev->doorbell.base));
166 WREG32_SOC15(NBIO, 0,
167 regBIF_BX_PF1_DOORBELL_SELFRING_GPA_APER_BASE_HIGH,
168 upper_32_bits(adev->doorbell.base));
169 }
170
171 WREG32_SOC15(NBIO, 0, regBIF_BX_PF1_DOORBELL_SELFRING_GPA_APER_CNTL, tmp);
172}
173
174
175static void nbio_v7_11_ih_doorbell_range(struct amdgpu_device *adev,
176 bool use_doorbell, int doorbell_index)
177{
178 u32 ih_doorbell_range = RREG32_SOC15(NBIO, 0,regGDC0_BIF_IH_DOORBELL_RANGE);
179
180 if (use_doorbell) {
181 ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range,
182 GDC0_BIF_IH_DOORBELL_RANGE, OFFSET,
183 doorbell_index);
184 ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range,
185 GDC0_BIF_IH_DOORBELL_RANGE, SIZE,
186 2);
187 } else {
188 ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range,
189 GDC0_BIF_IH_DOORBELL_RANGE, SIZE,
190 0);
191 }
192
193 WREG32_SOC15(NBIO, 0, regGDC0_BIF_IH_DOORBELL_RANGE,
194 ih_doorbell_range);
195}
196
197static void nbio_v7_11_ih_control(struct amdgpu_device *adev)
198{
199 u32 interrupt_cntl;
200
201 /* setup interrupt control */
202 WREG32_SOC15(NBIO, 0, regBIF_BX1_INTERRUPT_CNTL2,
203 adev->dummy_page_addr >> 8);
204
205 interrupt_cntl = RREG32_SOC15(NBIO, 0, regBIF_BX1_INTERRUPT_CNTL);
206 /*
207 * INTERRUPT_CNTL__IH_DUMMY_RD_OVERRIDE_MASK=0 - dummy read disabled with msi, enabled without msi
208 * INTERRUPT_CNTL__IH_DUMMY_RD_OVERRIDE_MASK=1 - dummy read controlled by IH_DUMMY_RD_EN
209 */
210 interrupt_cntl = REG_SET_FIELD(interrupt_cntl, BIF_BX1_INTERRUPT_CNTL,
211 IH_DUMMY_RD_OVERRIDE, 0);
212
213 /* INTERRUPT_CNTL__IH_REQ_NONSNOOP_EN_MASK=1 if ring is in non-cacheable memory, e.g., vram */
214 interrupt_cntl = REG_SET_FIELD(interrupt_cntl, BIF_BX1_INTERRUPT_CNTL,
215 IH_REQ_NONSNOOP_EN, 0);
216
217 WREG32_SOC15(NBIO, 0, regBIF_BX1_INTERRUPT_CNTL, interrupt_cntl);
218}
219
220static u32 nbio_v7_11_get_hdp_flush_req_offset(struct amdgpu_device *adev)
221{
222 return SOC15_REG_OFFSET(NBIO, 0, regBIF_BX_PF1_GPU_HDP_FLUSH_REQ);
223}
224
225static u32 nbio_v7_11_get_hdp_flush_done_offset(struct amdgpu_device *adev)
226{
227 return SOC15_REG_OFFSET(NBIO, 0, regBIF_BX_PF1_GPU_HDP_FLUSH_DONE);
228}
229
230static u32 nbio_v7_11_get_pcie_index_offset(struct amdgpu_device *adev)
231{
232 return SOC15_REG_OFFSET(NBIO, 0, regBIF_BX1_PCIE_INDEX2);
233}
234
235static u32 nbio_v7_11_get_pcie_data_offset(struct amdgpu_device *adev)
236{
237 return SOC15_REG_OFFSET(NBIO, 0, regBIF_BX1_PCIE_DATA2);
238}
239
240static u32 nbio_v7_11_get_pcie_port_index_offset(struct amdgpu_device *adev)
241{
242 return SOC15_REG_OFFSET(NBIO, 0, regBIF_BX_PF1_RSMU_INDEX);
243}
244
245static u32 nbio_v7_11_get_pcie_port_data_offset(struct amdgpu_device *adev)
246{
247 return SOC15_REG_OFFSET(NBIO, 0, regBIF_BX_PF1_RSMU_DATA);
248}
249
250const struct nbio_hdp_flush_reg nbio_v7_11_hdp_flush_reg = {
251 .ref_and_mask_cp0 = BIF_BX_PF1_GPU_HDP_FLUSH_DONE__CP0_MASK,
252 .ref_and_mask_cp1 = BIF_BX_PF1_GPU_HDP_FLUSH_DONE__CP1_MASK,
253 .ref_and_mask_cp2 = BIF_BX_PF1_GPU_HDP_FLUSH_DONE__CP2_MASK,
254 .ref_and_mask_cp3 = BIF_BX_PF1_GPU_HDP_FLUSH_DONE__CP3_MASK,
255 .ref_and_mask_cp4 = BIF_BX_PF1_GPU_HDP_FLUSH_DONE__CP4_MASK,
256 .ref_and_mask_cp5 = BIF_BX_PF1_GPU_HDP_FLUSH_DONE__CP5_MASK,
257 .ref_and_mask_cp6 = BIF_BX_PF1_GPU_HDP_FLUSH_DONE__CP6_MASK,
258 .ref_and_mask_cp7 = BIF_BX_PF1_GPU_HDP_FLUSH_DONE__CP7_MASK,
259 .ref_and_mask_cp8 = BIF_BX_PF1_GPU_HDP_FLUSH_DONE__CP8_MASK,
260 .ref_and_mask_cp9 = BIF_BX_PF1_GPU_HDP_FLUSH_DONE__CP9_MASK,
261 .ref_and_mask_sdma0 = BIF_BX_PF1_GPU_HDP_FLUSH_DONE__SDMA0_MASK,
262 .ref_and_mask_sdma1 = BIF_BX_PF1_GPU_HDP_FLUSH_DONE__SDMA1_MASK,
263};
264
265static void nbio_v7_11_init_registers(struct amdgpu_device *adev)
266{
267 uint32_t def, data;
268
269 def = data = RREG32_SOC15(NBIO, 0, regBIF_BIF256_CI256_RC3X4_USB4_PCIE_MST_CTRL_3);
270 data = REG_SET_FIELD(data, BIF_BIF256_CI256_RC3X4_USB4_PCIE_MST_CTRL_3,
271 CI_SWUS_MAX_READ_REQUEST_SIZE_MODE, 1);
272 data = REG_SET_FIELD(data, BIF_BIF256_CI256_RC3X4_USB4_PCIE_MST_CTRL_3,
273 CI_SWUS_MAX_READ_REQUEST_SIZE_PRIV, 1);
274
275 if (def != data)
276 WREG32_SOC15(NBIO, 0, regBIF_BIF256_CI256_RC3X4_USB4_PCIE_MST_CTRL_3, data);
277
278}
279
280static void nbio_v7_11_update_medium_grain_clock_gating(struct amdgpu_device *adev,
281 bool enable)
282{
283 uint32_t def, data;
284
285 if (!(adev->cg_flags & AMD_CG_SUPPORT_BIF_MGCG))
286 return;
287
288 def = data = RREG32_SOC15(NBIO, 0, regBIF_BIF256_CI256_RC3X4_USB4_CPM_CONTROL);
289 if (enable) {
290 data |= (BIF_BIF256_CI256_RC3X4_USB4_CPM_CONTROL__LCLK_DYN_GATE_ENABLE_MASK |
291 BIF_BIF256_CI256_RC3X4_USB4_CPM_CONTROL__TXCLK_DYN_GATE_ENABLE_MASK |
292 BIF_BIF256_CI256_RC3X4_USB4_CPM_CONTROL__TXCLK_LCNT_GATE_ENABLE_MASK |
293 BIF_BIF256_CI256_RC3X4_USB4_CPM_CONTROL__TXCLK_REGS_GATE_ENABLE_MASK |
294 BIF_BIF256_CI256_RC3X4_USB4_CPM_CONTROL__TXCLK_PRBS_GATE_ENABLE_MASK |
295 BIF_BIF256_CI256_RC3X4_USB4_CPM_CONTROL__REFCLK_REGS_GATE_ENABLE_MASK);
296 } else {
297 data &= ~(BIF_BIF256_CI256_RC3X4_USB4_CPM_CONTROL__LCLK_DYN_GATE_ENABLE_MASK |
298 BIF_BIF256_CI256_RC3X4_USB4_CPM_CONTROL__TXCLK_DYN_GATE_ENABLE_MASK |
299 BIF_BIF256_CI256_RC3X4_USB4_CPM_CONTROL__TXCLK_LCNT_GATE_ENABLE_MASK |
300 BIF_BIF256_CI256_RC3X4_USB4_CPM_CONTROL__TXCLK_REGS_GATE_ENABLE_MASK |
301 BIF_BIF256_CI256_RC3X4_USB4_CPM_CONTROL__TXCLK_PRBS_GATE_ENABLE_MASK |
302 BIF_BIF256_CI256_RC3X4_USB4_CPM_CONTROL__REFCLK_REGS_GATE_ENABLE_MASK);
303 }
304
305 if (def != data)
306 WREG32_SOC15(NBIO, 0, regBIF_BIF256_CI256_RC3X4_USB4_CPM_CONTROL, data);
307}
308
309static void nbio_v7_11_update_medium_grain_light_sleep(struct amdgpu_device *adev,
310 bool enable)
311{
312 uint32_t def, data;
313
314 if (!(adev->cg_flags & AMD_CG_SUPPORT_BIF_LS))
315 return;
316
317 def = data = RREG32_SOC15(NBIO, 0, regBIF_BIF256_CI256_RC3X4_USB4_PCIE_CNTL2);
318 if (enable)
319 data |= BIF_BIF256_CI256_RC3X4_USB4_PCIE_CNTL2__SLV_MEM_LS_EN_MASK;
320 else
321 data &= ~BIF_BIF256_CI256_RC3X4_USB4_PCIE_CNTL2__SLV_MEM_LS_EN_MASK;
322
323 if (def != data)
324 WREG32_SOC15(NBIO, 0, regBIF_BIF256_CI256_RC3X4_USB4_PCIE_CNTL2, data);
325
326 def = data = RREG32_SOC15(NBIO, 0, regBIF_BIF256_CI256_RC3X4_USB4_PCIE_TX_POWER_CTRL_1);
327 if (enable) {
328 data |= (BIF_BIF256_CI256_RC3X4_USB4_PCIE_TX_POWER_CTRL_1__MST_MEM_LS_EN_MASK |
329 BIF_BIF256_CI256_RC3X4_USB4_PCIE_TX_POWER_CTRL_1__REPLAY_MEM_LS_EN_MASK);
330 } else {
331 data &= ~(BIF_BIF256_CI256_RC3X4_USB4_PCIE_TX_POWER_CTRL_1__MST_MEM_LS_EN_MASK |
332 BIF_BIF256_CI256_RC3X4_USB4_PCIE_TX_POWER_CTRL_1__REPLAY_MEM_LS_EN_MASK);
333 }
334
335 if (def != data)
336 WREG32_SOC15(NBIO, 0, regBIF_BIF256_CI256_RC3X4_USB4_PCIE_TX_POWER_CTRL_1, data);
337}
338
339static void nbio_v7_11_get_clockgating_state(struct amdgpu_device *adev,
340 u64 *flags)
341{
342 uint32_t data;
343
344 /* AMD_CG_SUPPORT_BIF_MGCG */
345 data = RREG32_SOC15(NBIO, 0, regBIF_BIF256_CI256_RC3X4_USB4_CPM_CONTROL);
346 if (data & BIF_BIF256_CI256_RC3X4_USB4_CPM_CONTROL__LCLK_DYN_GATE_ENABLE_MASK)
347 *flags |= AMD_CG_SUPPORT_BIF_MGCG;
348
349 /* AMD_CG_SUPPORT_BIF_LS */
350 data = RREG32_SOC15(NBIO, 0, regBIF_BIF256_CI256_RC3X4_USB4_PCIE_CNTL2);
351 if (data & BIF_BIF256_CI256_RC3X4_USB4_PCIE_CNTL2__SLV_MEM_LS_EN_MASK)
352 *flags |= AMD_CG_SUPPORT_BIF_LS;
353}
354
355const struct amdgpu_nbio_funcs nbio_v7_11_funcs = {
356 .get_hdp_flush_req_offset = nbio_v7_11_get_hdp_flush_req_offset,
357 .get_hdp_flush_done_offset = nbio_v7_11_get_hdp_flush_done_offset,
358 .get_pcie_index_offset = nbio_v7_11_get_pcie_index_offset,
359 .get_pcie_data_offset = nbio_v7_11_get_pcie_data_offset,
360 .get_pcie_port_index_offset = nbio_v7_11_get_pcie_port_index_offset,
361 .get_pcie_port_data_offset = nbio_v7_11_get_pcie_port_data_offset,
362 .get_rev_id = nbio_v7_11_get_rev_id,
363 .mc_access_enable = nbio_v7_11_mc_access_enable,
364 .get_memsize = nbio_v7_11_get_memsize,
365 .sdma_doorbell_range = nbio_v7_11_sdma_doorbell_range,
366 .vcn_doorbell_range = nbio_v7_11_vcn_doorbell_range,
367 .vpe_doorbell_range = nbio_v7_11_vpe_doorbell_range,
368 .enable_doorbell_aperture = nbio_v7_11_enable_doorbell_aperture,
369 .enable_doorbell_selfring_aperture = nbio_v7_11_enable_doorbell_selfring_aperture,
370 .ih_doorbell_range = nbio_v7_11_ih_doorbell_range,
371 .update_medium_grain_clock_gating = nbio_v7_11_update_medium_grain_clock_gating,
372 .update_medium_grain_light_sleep = nbio_v7_11_update_medium_grain_light_sleep,
373 .get_clockgating_state = nbio_v7_11_get_clockgating_state,
374 .ih_control = nbio_v7_11_ih_control,
375 .init_registers = nbio_v7_11_init_registers,
376 .remap_hdp_registers = nbio_v7_11_remap_hdp_registers,
377};
378

source code of linux/drivers/gpu/drm/amd/amdgpu/nbio_v7_11.c