tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * Copyright 2020 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_2.h"
26
27#include "nbio/nbio_7_2_0_offset.h"
28#include "nbio/nbio_7_2_0_sh_mask.h"
29#include <uapi/linux/kfd_ioctl.h>
30
31#define regRCC_STRAP0_RCC_DEV0_EPF0_STRAP0_YC 0x0015
32#define regRCC_STRAP0_RCC_DEV0_EPF0_STRAP0_YC_BASE_IDX 2
33#define regBIF_BX0_BIF_FB_EN_YC 0x0100
34#define regBIF_BX0_BIF_FB_EN_YC_BASE_IDX 2
35#define regBIF1_PCIE_MST_CTRL_3 0x4601c6
36#define regBIF1_PCIE_MST_CTRL_3_BASE_IDX 5
37#define BIF1_PCIE_MST_CTRL_3__CI_SWUS_MAX_READ_REQUEST_SIZE_MODE__SHIFT \
38 0x1b
39#define BIF1_PCIE_MST_CTRL_3__CI_SWUS_MAX_READ_REQUEST_SIZE_PRIV__SHIFT \
40 0x1c
41#define BIF1_PCIE_MST_CTRL_3__CI_SWUS_MAX_READ_REQUEST_SIZE_MODE_MASK \
42 0x08000000L
43#define BIF1_PCIE_MST_CTRL_3__CI_SWUS_MAX_READ_REQUEST_SIZE_PRIV_MASK \
44 0x30000000L
45#define regBIF1_PCIE_TX_POWER_CTRL_1 0x460187
46#define regBIF1_PCIE_TX_POWER_CTRL_1_BASE_IDX 5
47#define BIF1_PCIE_TX_POWER_CTRL_1__MST_MEM_LS_EN_MASK 0x00000001L
48#define BIF1_PCIE_TX_POWER_CTRL_1__REPLAY_MEM_LS_EN_MASK 0x00000008L
49
50static void nbio_v7_2_remap_hdp_registers(struct amdgpu_device *adev)
51{
52 WREG32_SOC15(NBIO, 0, regBIF_BX0_REMAP_HDP_MEM_FLUSH_CNTL,
53 adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_MEM_FLUSH_CNTL);
54 WREG32_SOC15(NBIO, 0, regBIF_BX0_REMAP_HDP_REG_FLUSH_CNTL,
55 adev->rmmio_remap.reg_offset + KFD_MMIO_REMAP_HDP_REG_FLUSH_CNTL);
56}
57
58static u32 nbio_v7_2_get_rev_id(struct amdgpu_device *adev)
59{
60 u32 tmp;
61
62 if (adev->asic_type == CHIP_YELLOW_CARP)
63 tmp = RREG32_SOC15(NBIO, 0, regRCC_STRAP0_RCC_DEV0_EPF0_STRAP0_YC);
64 else
65 tmp = RREG32_SOC15(NBIO, 0, regRCC_STRAP0_RCC_DEV0_EPF0_STRAP0);
66
67 tmp &= RCC_STRAP0_RCC_DEV0_EPF0_STRAP0__STRAP_ATI_REV_ID_DEV0_F0_MASK;
68 tmp >>= RCC_STRAP0_RCC_DEV0_EPF0_STRAP0__STRAP_ATI_REV_ID_DEV0_F0__SHIFT;
69
70 return tmp;
71}
72
73static void nbio_v7_2_mc_access_enable(struct amdgpu_device *adev, bool enable)
74{
75 if (enable)
76 if (adev->asic_type == CHIP_YELLOW_CARP)
77 WREG32_SOC15(NBIO, 0, regBIF_BX0_BIF_FB_EN_YC,
78 BIF_BX0_BIF_FB_EN__FB_READ_EN_MASK |
79 BIF_BX0_BIF_FB_EN__FB_WRITE_EN_MASK);
80 else
81 WREG32_SOC15(NBIO, 0, regBIF_BX0_BIF_FB_EN,
82 BIF_BX0_BIF_FB_EN__FB_READ_EN_MASK |
83 BIF_BX0_BIF_FB_EN__FB_WRITE_EN_MASK);
84 else
85 if (adev->asic_type == CHIP_YELLOW_CARP)
86 WREG32_SOC15(NBIO, 0, regBIF_BX0_BIF_FB_EN_YC, 0);
87 else
88 WREG32_SOC15(NBIO, 0, regBIF_BX0_BIF_FB_EN, 0);
89}
90
91static u32 nbio_v7_2_get_memsize(struct amdgpu_device *adev)
92{
93 return RREG32_SOC15(NBIO, 0, regRCC_DEV0_EPF0_0_RCC_CONFIG_MEMSIZE);
94}
95
96static void nbio_v7_2_sdma_doorbell_range(struct amdgpu_device *adev, int instance,
97 bool use_doorbell, int doorbell_index,
98 int doorbell_size)
99{
100 u32 reg = SOC15_REG_OFFSET(NBIO, 0, regGDC0_BIF_SDMA0_DOORBELL_RANGE);
101 u32 doorbell_range = RREG32_PCIE_PORT(reg);
102
103 if (use_doorbell) {
104 doorbell_range = REG_SET_FIELD(doorbell_range,
105 GDC0_BIF_SDMA0_DOORBELL_RANGE,
106 OFFSET, doorbell_index);
107 doorbell_range = REG_SET_FIELD(doorbell_range,
108 GDC0_BIF_SDMA0_DOORBELL_RANGE,
109 SIZE, doorbell_size);
110 } else {
111 doorbell_range = REG_SET_FIELD(doorbell_range,
112 GDC0_BIF_SDMA0_DOORBELL_RANGE,
113 SIZE, 0);
114 }
115
116 WREG32_PCIE_PORT(reg, doorbell_range);
117}
118
119static void nbio_v7_2_vcn_doorbell_range(struct amdgpu_device *adev, bool use_doorbell,
120 int doorbell_index, int instance)
121{
122 u32 reg = SOC15_REG_OFFSET(NBIO, 0, regGDC0_BIF_VCN0_DOORBELL_RANGE);
123 u32 doorbell_range = RREG32_PCIE_PORT(reg);
124
125 if (use_doorbell) {
126 doorbell_range = REG_SET_FIELD(doorbell_range,
127 GDC0_BIF_VCN0_DOORBELL_RANGE, OFFSET,
128 doorbell_index);
129 doorbell_range = REG_SET_FIELD(doorbell_range,
130 GDC0_BIF_VCN0_DOORBELL_RANGE, SIZE, 8);
131 } else {
132 doorbell_range = REG_SET_FIELD(doorbell_range,
133 GDC0_BIF_VCN0_DOORBELL_RANGE, SIZE, 0);
134 }
135
136 WREG32_PCIE_PORT(reg, doorbell_range);
137}
138
139static void nbio_v7_2_enable_doorbell_aperture(struct amdgpu_device *adev,
140 bool enable)
141{
142 u32 reg;
143
144 reg = RREG32_SOC15(NBIO, 0, regRCC_DEV0_EPF0_0_RCC_DOORBELL_APER_EN);
145 reg = REG_SET_FIELD(reg, RCC_DEV0_EPF0_0_RCC_DOORBELL_APER_EN,
146 BIF_DOORBELL_APER_EN, enable ? 1 : 0);
147
148 WREG32_SOC15(NBIO, 0, regRCC_DEV0_EPF0_0_RCC_DOORBELL_APER_EN, reg);
149}
150
151static void nbio_v7_2_enable_doorbell_selfring_aperture(struct amdgpu_device *adev,
152 bool enable)
153{
154 u32 tmp = 0;
155
156 if (enable) {
157 tmp = REG_SET_FIELD(tmp, BIF_BX_PF0_DOORBELL_SELFRING_GPA_APER_CNTL,
158 DOORBELL_SELFRING_GPA_APER_EN, 1) |
159 REG_SET_FIELD(tmp, BIF_BX_PF0_DOORBELL_SELFRING_GPA_APER_CNTL,
160 DOORBELL_SELFRING_GPA_APER_MODE, 1) |
161 REG_SET_FIELD(tmp, BIF_BX_PF0_DOORBELL_SELFRING_GPA_APER_CNTL,
162 DOORBELL_SELFRING_GPA_APER_SIZE, 0);
163
164 WREG32_SOC15(NBIO, 0,
165 regBIF_BX_PF0_DOORBELL_SELFRING_GPA_APER_BASE_LOW,
166 lower_32_bits(adev->doorbell.base));
167 WREG32_SOC15(NBIO, 0,
168 regBIF_BX_PF0_DOORBELL_SELFRING_GPA_APER_BASE_HIGH,
169 upper_32_bits(adev->doorbell.base));
170 }
171
172 WREG32_SOC15(NBIO, 0, regBIF_BX_PF0_DOORBELL_SELFRING_GPA_APER_CNTL,
173 tmp);
174}
175
176
177static void nbio_v7_2_ih_doorbell_range(struct amdgpu_device *adev,
178 bool use_doorbell, int doorbell_index)
179{
180 u32 ih_doorbell_range = RREG32_PCIE_PORT(SOC15_REG_OFFSET(NBIO, 0, regGDC0_BIF_IH_DOORBELL_RANGE));
181
182 if (use_doorbell) {
183 ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range,
184 GDC0_BIF_IH_DOORBELL_RANGE, OFFSET,
185 doorbell_index);
186 ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range,
187 GDC0_BIF_IH_DOORBELL_RANGE, SIZE,
188 2);
189 } else {
190 ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range,
191 GDC0_BIF_IH_DOORBELL_RANGE, SIZE,
192 0);
193 }
194
195 WREG32_PCIE_PORT(SOC15_REG_OFFSET(NBIO, 0, regGDC0_BIF_IH_DOORBELL_RANGE),
196 ih_doorbell_range);
197}
198
199static void nbio_v7_2_ih_control(struct amdgpu_device *adev)
200{
201 u32 interrupt_cntl;
202
203 /* setup interrupt control */
204 WREG32_SOC15(NBIO, 0, regBIF_BX0_INTERRUPT_CNTL2,
205 adev->dummy_page_addr >> 8);
206
207 interrupt_cntl = RREG32_SOC15(NBIO, 0, regBIF_BX0_INTERRUPT_CNTL);
208 /*
209 * INTERRUPT_CNTL__IH_DUMMY_RD_OVERRIDE_MASK=0 - dummy read disabled with msi, enabled without msi
210 * INTERRUPT_CNTL__IH_DUMMY_RD_OVERRIDE_MASK=1 - dummy read controlled by IH_DUMMY_RD_EN
211 */
212 interrupt_cntl = REG_SET_FIELD(interrupt_cntl, BIF_BX0_INTERRUPT_CNTL,
213 IH_DUMMY_RD_OVERRIDE, 0);
214
215 /* INTERRUPT_CNTL__IH_REQ_NONSNOOP_EN_MASK=1 if ring is in non-cacheable memory, e.g., vram */
216 interrupt_cntl = REG_SET_FIELD(interrupt_cntl, BIF_BX0_INTERRUPT_CNTL,
217 IH_REQ_NONSNOOP_EN, 0);
218
219 WREG32_SOC15(NBIO, 0, regBIF_BX0_INTERRUPT_CNTL, interrupt_cntl);
220}
221
222static void nbio_v7_2_update_medium_grain_clock_gating(struct amdgpu_device *adev,
223 bool enable)
224{
225 uint32_t def, data;
226
227 def = data = RREG32_PCIE_PORT(SOC15_REG_OFFSET(NBIO, 0, regCPM_CONTROL));
228 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_BIF_MGCG)) {
229 data |= (CPM_CONTROL__LCLK_DYN_GATE_ENABLE_MASK |
230 CPM_CONTROL__TXCLK_DYN_GATE_ENABLE_MASK |
231 CPM_CONTROL__TXCLK_LCNT_GATE_ENABLE_MASK |
232 CPM_CONTROL__TXCLK_REGS_GATE_ENABLE_MASK |
233 CPM_CONTROL__TXCLK_PRBS_GATE_ENABLE_MASK |
234 CPM_CONTROL__REFCLK_REGS_GATE_ENABLE_MASK);
235 } else {
236 data &= ~(CPM_CONTROL__LCLK_DYN_GATE_ENABLE_MASK |
237 CPM_CONTROL__TXCLK_DYN_GATE_ENABLE_MASK |
238 CPM_CONTROL__TXCLK_LCNT_GATE_ENABLE_MASK |
239 CPM_CONTROL__TXCLK_REGS_GATE_ENABLE_MASK |
240 CPM_CONTROL__TXCLK_PRBS_GATE_ENABLE_MASK |
241 CPM_CONTROL__REFCLK_REGS_GATE_ENABLE_MASK);
242 }
243
244 if (def != data)
245 WREG32_PCIE_PORT(SOC15_REG_OFFSET(NBIO, 0, regCPM_CONTROL), data);
246}
247
248static void nbio_v7_2_update_medium_grain_light_sleep(struct amdgpu_device *adev,
249 bool enable)
250{
251 uint32_t def, data;
252
253 if (adev->asic_type == CHIP_YELLOW_CARP) {
254 def = data = RREG32_PCIE_PORT(SOC15_REG_OFFSET(NBIO, 0, regPCIE_CNTL2));
255 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_BIF_LS))
256 data |= PCIE_CNTL2__SLV_MEM_LS_EN_MASK;
257 else
258 data &= ~PCIE_CNTL2__SLV_MEM_LS_EN_MASK;
259
260 if (def != data)
261 WREG32_PCIE_PORT(SOC15_REG_OFFSET(NBIO, 0, regPCIE_CNTL2), data);
262
263 data = RREG32_PCIE_PORT(SOC15_REG_OFFSET(NBIO, 0, regBIF1_PCIE_TX_POWER_CTRL_1));
264 def = data;
265 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_BIF_LS))
266 data |= (BIF1_PCIE_TX_POWER_CTRL_1__MST_MEM_LS_EN_MASK |
267 BIF1_PCIE_TX_POWER_CTRL_1__REPLAY_MEM_LS_EN_MASK);
268 else
269 data &= ~(BIF1_PCIE_TX_POWER_CTRL_1__MST_MEM_LS_EN_MASK |
270 BIF1_PCIE_TX_POWER_CTRL_1__REPLAY_MEM_LS_EN_MASK);
271
272 if (def != data)
273 WREG32_PCIE_PORT(SOC15_REG_OFFSET(NBIO, 0, regBIF1_PCIE_TX_POWER_CTRL_1),
274 data);
275 } else {
276 def = data = RREG32_PCIE_PORT(SOC15_REG_OFFSET(NBIO, 0, regPCIE_CNTL2));
277 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_BIF_LS))
278 data |= (PCIE_CNTL2__SLV_MEM_LS_EN_MASK |
279 PCIE_CNTL2__MST_MEM_LS_EN_MASK |
280 PCIE_CNTL2__REPLAY_MEM_LS_EN_MASK);
281 else
282 data &= ~(PCIE_CNTL2__SLV_MEM_LS_EN_MASK |
283 PCIE_CNTL2__MST_MEM_LS_EN_MASK |
284 PCIE_CNTL2__REPLAY_MEM_LS_EN_MASK);
285
286 if (def != data)
287 WREG32_PCIE_PORT(SOC15_REG_OFFSET(NBIO, 0, regPCIE_CNTL2), data);
288 }
289}
290
291static void nbio_v7_2_get_clockgating_state(struct amdgpu_device *adev,
292 u32 *flags)
293{
294 int data;
295
296 /* AMD_CG_SUPPORT_BIF_MGCG */
297 data = RREG32_PCIE_PORT(SOC15_REG_OFFSET(NBIO, 0, regCPM_CONTROL));
298 if (data & CPM_CONTROL__LCLK_DYN_GATE_ENABLE_MASK)
299 *flags |= AMD_CG_SUPPORT_BIF_MGCG;
300
301 /* AMD_CG_SUPPORT_BIF_LS */
302 data = RREG32_PCIE_PORT(SOC15_REG_OFFSET(NBIO, 0, regPCIE_CNTL2));
303 if (data & PCIE_CNTL2__SLV_MEM_LS_EN_MASK)
304 *flags |= AMD_CG_SUPPORT_BIF_LS;
305}
306
307static u32 nbio_v7_2_get_hdp_flush_req_offset(struct amdgpu_device *adev)
308{
309 return SOC15_REG_OFFSET(NBIO, 0, regBIF_BX_PF0_GPU_HDP_FLUSH_REQ);
310}
311
312static u32 nbio_v7_2_get_hdp_flush_done_offset(struct amdgpu_device *adev)
313{
314 return SOC15_REG_OFFSET(NBIO, 0, regBIF_BX_PF0_GPU_HDP_FLUSH_DONE);
315}
316
317static u32 nbio_v7_2_get_pcie_index_offset(struct amdgpu_device *adev)
318{
319 return SOC15_REG_OFFSET(NBIO, 0, regBIF_BX0_PCIE_INDEX2);
320}
321
322static u32 nbio_v7_2_get_pcie_data_offset(struct amdgpu_device *adev)
323{
324 return SOC15_REG_OFFSET(NBIO, 0, regBIF_BX0_PCIE_DATA2);
325}
326
327static u32 nbio_v7_2_get_pcie_port_index_offset(struct amdgpu_device *adev)
328{
329 return SOC15_REG_OFFSET(NBIO, 0, regBIF_BX_PF0_RSMU_INDEX);
330}
331
332static u32 nbio_v7_2_get_pcie_port_data_offset(struct amdgpu_device *adev)
333{
334 return SOC15_REG_OFFSET(NBIO, 0, regBIF_BX_PF0_RSMU_DATA);
335}
336
337const struct nbio_hdp_flush_reg nbio_v7_2_hdp_flush_reg = {
338 .ref_and_mask_cp0 = BIF_BX_PF0_GPU_HDP_FLUSH_DONE__CP0_MASK,
339 .ref_and_mask_cp1 = BIF_BX_PF0_GPU_HDP_FLUSH_DONE__CP1_MASK,
340 .ref_and_mask_cp2 = BIF_BX_PF0_GPU_HDP_FLUSH_DONE__CP2_MASK,
341 .ref_and_mask_cp3 = BIF_BX_PF0_GPU_HDP_FLUSH_DONE__CP3_MASK,
342 .ref_and_mask_cp4 = BIF_BX_PF0_GPU_HDP_FLUSH_DONE__CP4_MASK,
343 .ref_and_mask_cp5 = BIF_BX_PF0_GPU_HDP_FLUSH_DONE__CP5_MASK,
344 .ref_and_mask_cp6 = BIF_BX_PF0_GPU_HDP_FLUSH_DONE__CP6_MASK,
345 .ref_and_mask_cp7 = BIF_BX_PF0_GPU_HDP_FLUSH_DONE__CP7_MASK,
346 .ref_and_mask_cp8 = BIF_BX_PF0_GPU_HDP_FLUSH_DONE__CP8_MASK,
347 .ref_and_mask_cp9 = BIF_BX_PF0_GPU_HDP_FLUSH_DONE__CP9_MASK,
348 .ref_and_mask_sdma0 = BIF_BX_PF0_GPU_HDP_FLUSH_DONE__SDMA0_MASK,
349 .ref_and_mask_sdma1 = BIF_BX_PF0_GPU_HDP_FLUSH_DONE__SDMA1_MASK,
350};
351
352static void nbio_v7_2_init_registers(struct amdgpu_device *adev)
353{
354 uint32_t def, data;
355 if (adev->asic_type == CHIP_YELLOW_CARP) {
356 def = data = RREG32_PCIE_PORT(SOC15_REG_OFFSET(NBIO, 0, regBIF1_PCIE_MST_CTRL_3));
357 data = REG_SET_FIELD(data, BIF1_PCIE_MST_CTRL_3,
358 CI_SWUS_MAX_READ_REQUEST_SIZE_MODE, 1);
359 data = REG_SET_FIELD(data, BIF1_PCIE_MST_CTRL_3,
360 CI_SWUS_MAX_READ_REQUEST_SIZE_PRIV, 1);
361
362 if (def != data)
363 WREG32_PCIE_PORT(SOC15_REG_OFFSET(NBIO, 0, regBIF1_PCIE_MST_CTRL_3), data);
364 } else {
365 def = data = RREG32_PCIE_PORT(SOC15_REG_OFFSET(NBIO, 0, regPCIE_CONFIG_CNTL));
366 data = REG_SET_FIELD(data, PCIE_CONFIG_CNTL,
367 CI_SWUS_MAX_READ_REQUEST_SIZE_MODE, 1);
368 data = REG_SET_FIELD(data, PCIE_CONFIG_CNTL,
369 CI_SWUS_MAX_READ_REQUEST_SIZE_PRIV, 1);
370
371 if (def != data)
372 WREG32_PCIE_PORT(SOC15_REG_OFFSET(NBIO, 0, regPCIE_CONFIG_CNTL), data);
373 }
374}
375
376const struct amdgpu_nbio_funcs nbio_v7_2_funcs = {
377 .get_hdp_flush_req_offset = nbio_v7_2_get_hdp_flush_req_offset,
378 .get_hdp_flush_done_offset = nbio_v7_2_get_hdp_flush_done_offset,
379 .get_pcie_index_offset = nbio_v7_2_get_pcie_index_offset,
380 .get_pcie_data_offset = nbio_v7_2_get_pcie_data_offset,
381 .get_pcie_port_index_offset = nbio_v7_2_get_pcie_port_index_offset,
382 .get_pcie_port_data_offset = nbio_v7_2_get_pcie_port_data_offset,
383 .get_rev_id = nbio_v7_2_get_rev_id,
384 .mc_access_enable = nbio_v7_2_mc_access_enable,
385 .get_memsize = nbio_v7_2_get_memsize,
386 .sdma_doorbell_range = nbio_v7_2_sdma_doorbell_range,
387 .vcn_doorbell_range = nbio_v7_2_vcn_doorbell_range,
388 .enable_doorbell_aperture = nbio_v7_2_enable_doorbell_aperture,
389 .enable_doorbell_selfring_aperture = nbio_v7_2_enable_doorbell_selfring_aperture,
390 .ih_doorbell_range = nbio_v7_2_ih_doorbell_range,
391 .update_medium_grain_clock_gating = nbio_v7_2_update_medium_grain_clock_gating,
392 .update_medium_grain_light_sleep = nbio_v7_2_update_medium_grain_light_sleep,
393 .get_clockgating_state = nbio_v7_2_get_clockgating_state,
394 .ih_control = nbio_v7_2_ih_control,
395 .init_registers = nbio_v7_2_init_registers,
396 .remap_hdp_registers = nbio_v7_2_remap_hdp_registers,
397};