tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * Copyright 2016 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_0.h"
26
27#include "nbio/nbio_7_0_default.h"
28#include "nbio/nbio_7_0_offset.h"
29#include "nbio/nbio_7_0_sh_mask.h"
30#include "vega10_enum.h"
31
32#define smnNBIF_MGCG_CTRL_LCLK 0x1013a05c
33
34#define smnCPM_CONTROL 0x11180460
35#define smnPCIE_CNTL2 0x11180070
36
37/* vega20 */
38#define mmRCC_DEV0_EPF0_STRAP0_VG20 0x0011
39#define mmRCC_DEV0_EPF0_STRAP0_VG20_BASE_IDX 2
40
41static u32 nbio_v7_0_get_rev_id(struct amdgpu_device *adev)
42{
43 u32 tmp = RREG32_SOC15(NBIO, 0, mmRCC_DEV0_EPF0_STRAP0);
44
45 if (adev->asic_type == CHIP_VEGA20)
46 tmp = RREG32_SOC15(NBIO, 0, mmRCC_DEV0_EPF0_STRAP0_VG20);
47 else
48 tmp = RREG32_SOC15(NBIO, 0, mmRCC_DEV0_EPF0_STRAP0);
49
50 tmp &= RCC_DEV0_EPF0_STRAP0__STRAP_ATI_REV_ID_DEV0_F0_MASK;
51 tmp >>= RCC_DEV0_EPF0_STRAP0__STRAP_ATI_REV_ID_DEV0_F0__SHIFT;
52
53 return tmp;
54}
55
56static void nbio_v7_0_mc_access_enable(struct amdgpu_device *adev, bool enable)
57{
58 if (enable)
59 WREG32_SOC15(NBIO, 0, mmBIF_FB_EN,
60 BIF_FB_EN__FB_READ_EN_MASK | BIF_FB_EN__FB_WRITE_EN_MASK);
61 else
62 WREG32_SOC15(NBIO, 0, mmBIF_FB_EN, 0);
63}
64
65static void nbio_v7_0_hdp_flush(struct amdgpu_device *adev,
66 struct amdgpu_ring *ring)
67{
68 if (!ring || !ring->funcs->emit_wreg)
69 WREG32_SOC15_NO_KIQ(NBIO, 0, mmHDP_MEM_COHERENCY_FLUSH_CNTL, 0);
70 else
71 amdgpu_ring_emit_wreg(ring, SOC15_REG_OFFSET(
72 NBIO, 0, mmHDP_MEM_COHERENCY_FLUSH_CNTL), 0);
73}
74
75static u32 nbio_v7_0_get_memsize(struct amdgpu_device *adev)
76{
77 return RREG32_SOC15(NBIO, 0, mmRCC_CONFIG_MEMSIZE);
78}
79
80static void nbio_v7_0_sdma_doorbell_range(struct amdgpu_device *adev, int instance,
81 bool use_doorbell, int doorbell_index)
82{
83 u32 reg = instance == 0 ? SOC15_REG_OFFSET(NBIO, 0, mmBIF_SDMA0_DOORBELL_RANGE) :
84 SOC15_REG_OFFSET(NBIO, 0, mmBIF_SDMA1_DOORBELL_RANGE);
85
86 u32 doorbell_range = RREG32(reg);
87 u32 range = 2;
88
89 if (adev->asic_type == CHIP_VEGA20)
90 range = 8;
91
92 if (use_doorbell) {
93 doorbell_range = REG_SET_FIELD(doorbell_range, BIF_SDMA0_DOORBELL_RANGE, OFFSET, doorbell_index);
94 doorbell_range = REG_SET_FIELD(doorbell_range, BIF_SDMA0_DOORBELL_RANGE, SIZE, range);
95 } else
96 doorbell_range = REG_SET_FIELD(doorbell_range, BIF_SDMA0_DOORBELL_RANGE, SIZE, 0);
97
98 WREG32(reg, doorbell_range);
99}
100
101static void nbio_v7_0_enable_doorbell_aperture(struct amdgpu_device *adev,
102 bool enable)
103{
104 WREG32_FIELD15(NBIO, 0, RCC_DOORBELL_APER_EN, BIF_DOORBELL_APER_EN, enable ? 1 : 0);
105}
106
107static void nbio_v7_0_enable_doorbell_selfring_aperture(struct amdgpu_device *adev,
108 bool enable)
109{
110
111}
112
113static void nbio_v7_0_ih_doorbell_range(struct amdgpu_device *adev,
114 bool use_doorbell, int doorbell_index)
115{
116 u32 ih_doorbell_range = RREG32_SOC15(NBIO, 0 , mmBIF_IH_DOORBELL_RANGE);
117
118 if (use_doorbell) {
119 ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range, BIF_IH_DOORBELL_RANGE, OFFSET, doorbell_index);
120 ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range, BIF_IH_DOORBELL_RANGE, SIZE, 2);
121 } else
122 ih_doorbell_range = REG_SET_FIELD(ih_doorbell_range, BIF_IH_DOORBELL_RANGE, SIZE, 0);
123
124 WREG32_SOC15(NBIO, 0, mmBIF_IH_DOORBELL_RANGE, ih_doorbell_range);
125}
126
127static uint32_t nbio_7_0_read_syshub_ind_mmr(struct amdgpu_device *adev, uint32_t offset)
128{
129 uint32_t data;
130
131 WREG32_SOC15(NBIO, 0, mmSYSHUB_INDEX, offset);
132 data = RREG32_SOC15(NBIO, 0, mmSYSHUB_DATA);
133
134 return data;
135}
136
137static void nbio_7_0_write_syshub_ind_mmr(struct amdgpu_device *adev, uint32_t offset,
138 uint32_t data)
139{
140 WREG32_SOC15(NBIO, 0, mmSYSHUB_INDEX, offset);
141 WREG32_SOC15(NBIO, 0, mmSYSHUB_DATA, data);
142}
143
144static void nbio_v7_0_update_medium_grain_clock_gating(struct amdgpu_device *adev,
145 bool enable)
146{
147 uint32_t def, data;
148
149 if (adev->asic_type == CHIP_VEGA20)
150 return;
151
152 /* NBIF_MGCG_CTRL_LCLK */
153 def = data = RREG32_PCIE(smnNBIF_MGCG_CTRL_LCLK);
154
155 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_BIF_MGCG))
156 data |= NBIF_MGCG_CTRL_LCLK__NBIF_MGCG_EN_LCLK_MASK;
157 else
158 data &= ~NBIF_MGCG_CTRL_LCLK__NBIF_MGCG_EN_LCLK_MASK;
159
160 if (def != data)
161 WREG32_PCIE(smnNBIF_MGCG_CTRL_LCLK, data);
162
163 /* SYSHUB_MGCG_CTRL_SOCCLK */
164 def = data = nbio_7_0_read_syshub_ind_mmr(adev, ixSYSHUB_MMREG_IND_SYSHUB_MGCG_CTRL_SOCCLK);
165
166 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_BIF_MGCG))
167 data |= SYSHUB_MMREG_DIRECT_SYSHUB_MGCG_CTRL_SOCCLK__SYSHUB_MGCG_EN_SOCCLK_MASK;
168 else
169 data &= ~SYSHUB_MMREG_DIRECT_SYSHUB_MGCG_CTRL_SOCCLK__SYSHUB_MGCG_EN_SOCCLK_MASK;
170
171 if (def != data)
172 nbio_7_0_write_syshub_ind_mmr(adev, ixSYSHUB_MMREG_IND_SYSHUB_MGCG_CTRL_SOCCLK, data);
173
174 /* SYSHUB_MGCG_CTRL_SHUBCLK */
175 def = data = nbio_7_0_read_syshub_ind_mmr(adev, ixSYSHUB_MMREG_IND_SYSHUB_MGCG_CTRL_SHUBCLK);
176
177 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_BIF_MGCG))
178 data |= SYSHUB_MMREG_DIRECT_SYSHUB_MGCG_CTRL_SHUBCLK__SYSHUB_MGCG_EN_SHUBCLK_MASK;
179 else
180 data &= ~SYSHUB_MMREG_DIRECT_SYSHUB_MGCG_CTRL_SHUBCLK__SYSHUB_MGCG_EN_SHUBCLK_MASK;
181
182 if (def != data)
183 nbio_7_0_write_syshub_ind_mmr(adev, ixSYSHUB_MMREG_IND_SYSHUB_MGCG_CTRL_SHUBCLK, data);
184}
185
186static void nbio_v7_0_update_medium_grain_light_sleep(struct amdgpu_device *adev,
187 bool enable)
188{
189 uint32_t def, data;
190
191 def = data = RREG32_PCIE(smnPCIE_CNTL2);
192 if (enable && (adev->cg_flags & AMD_CG_SUPPORT_BIF_LS)) {
193 data |= (PCIE_CNTL2__SLV_MEM_LS_EN_MASK |
194 PCIE_CNTL2__MST_MEM_LS_EN_MASK |
195 PCIE_CNTL2__REPLAY_MEM_LS_EN_MASK);
196 } else {
197 data &= ~(PCIE_CNTL2__SLV_MEM_LS_EN_MASK |
198 PCIE_CNTL2__MST_MEM_LS_EN_MASK |
199 PCIE_CNTL2__REPLAY_MEM_LS_EN_MASK);
200 }
201
202 if (def != data)
203 WREG32_PCIE(smnPCIE_CNTL2, data);
204}
205
206static void nbio_v7_0_get_clockgating_state(struct amdgpu_device *adev,
207 u32 *flags)
208{
209 int data;
210
211 /* AMD_CG_SUPPORT_BIF_MGCG */
212 data = RREG32_PCIE(smnCPM_CONTROL);
213 if (data & CPM_CONTROL__LCLK_DYN_GATE_ENABLE_MASK)
214 *flags |= AMD_CG_SUPPORT_BIF_MGCG;
215
216 /* AMD_CG_SUPPORT_BIF_LS */
217 data = RREG32_PCIE(smnPCIE_CNTL2);
218 if (data & PCIE_CNTL2__SLV_MEM_LS_EN_MASK)
219 *flags |= AMD_CG_SUPPORT_BIF_LS;
220}
221
222static void nbio_v7_0_ih_control(struct amdgpu_device *adev)
223{
224 u32 interrupt_cntl;
225
226 /* setup interrupt control */
227 WREG32_SOC15(NBIO, 0, mmINTERRUPT_CNTL2, adev->dummy_page_addr >> 8);
228 interrupt_cntl = RREG32_SOC15(NBIO, 0, mmINTERRUPT_CNTL);
229 /* INTERRUPT_CNTL__IH_DUMMY_RD_OVERRIDE_MASK=0 - dummy read disabled with msi, enabled without msi
230 * INTERRUPT_CNTL__IH_DUMMY_RD_OVERRIDE_MASK=1 - dummy read controlled by IH_DUMMY_RD_EN
231 */
232 interrupt_cntl = REG_SET_FIELD(interrupt_cntl, INTERRUPT_CNTL, IH_DUMMY_RD_OVERRIDE, 0);
233 /* INTERRUPT_CNTL__IH_REQ_NONSNOOP_EN_MASK=1 if ring is in non-cacheable memory, e.g., vram */
234 interrupt_cntl = REG_SET_FIELD(interrupt_cntl, INTERRUPT_CNTL, IH_REQ_NONSNOOP_EN, 0);
235 WREG32_SOC15(NBIO, 0, mmINTERRUPT_CNTL, interrupt_cntl);
236}
237
238static u32 nbio_v7_0_get_hdp_flush_req_offset(struct amdgpu_device *adev)
239{
240 return SOC15_REG_OFFSET(NBIO, 0, mmGPU_HDP_FLUSH_REQ);
241}
242
243static u32 nbio_v7_0_get_hdp_flush_done_offset(struct amdgpu_device *adev)
244{
245 return SOC15_REG_OFFSET(NBIO, 0, mmGPU_HDP_FLUSH_DONE);
246}
247
248static u32 nbio_v7_0_get_pcie_index_offset(struct amdgpu_device *adev)
249{
250 return SOC15_REG_OFFSET(NBIO, 0, mmPCIE_INDEX2);
251}
252
253static u32 nbio_v7_0_get_pcie_data_offset(struct amdgpu_device *adev)
254{
255 return SOC15_REG_OFFSET(NBIO, 0, mmPCIE_DATA2);
256}
257
258const struct nbio_hdp_flush_reg nbio_v7_0_hdp_flush_reg = {
259 .ref_and_mask_cp0 = GPU_HDP_FLUSH_DONE__CP0_MASK,
260 .ref_and_mask_cp1 = GPU_HDP_FLUSH_DONE__CP1_MASK,
261 .ref_and_mask_cp2 = GPU_HDP_FLUSH_DONE__CP2_MASK,
262 .ref_and_mask_cp3 = GPU_HDP_FLUSH_DONE__CP3_MASK,
263 .ref_and_mask_cp4 = GPU_HDP_FLUSH_DONE__CP4_MASK,
264 .ref_and_mask_cp5 = GPU_HDP_FLUSH_DONE__CP5_MASK,
265 .ref_and_mask_cp6 = GPU_HDP_FLUSH_DONE__CP6_MASK,
266 .ref_and_mask_cp7 = GPU_HDP_FLUSH_DONE__CP7_MASK,
267 .ref_and_mask_cp8 = GPU_HDP_FLUSH_DONE__CP8_MASK,
268 .ref_and_mask_cp9 = GPU_HDP_FLUSH_DONE__CP9_MASK,
269 .ref_and_mask_sdma0 = GPU_HDP_FLUSH_DONE__SDMA0_MASK,
270 .ref_and_mask_sdma1 = GPU_HDP_FLUSH_DONE__SDMA1_MASK,
271};
272
273static void nbio_v7_0_detect_hw_virt(struct amdgpu_device *adev)
274{
275 if (is_virtual_machine()) /* passthrough mode exclus sriov mod */
276 adev->virt.caps |= AMDGPU_PASSTHROUGH_MODE;
277}
278
279static void nbio_v7_0_init_registers(struct amdgpu_device *adev)
280{
281
282}
283
284const struct amdgpu_nbio_funcs nbio_v7_0_funcs = {
285 .hdp_flush_reg = &nbio_v7_0_hdp_flush_reg,
286 .get_hdp_flush_req_offset = nbio_v7_0_get_hdp_flush_req_offset,
287 .get_hdp_flush_done_offset = nbio_v7_0_get_hdp_flush_done_offset,
288 .get_pcie_index_offset = nbio_v7_0_get_pcie_index_offset,
289 .get_pcie_data_offset = nbio_v7_0_get_pcie_data_offset,
290 .get_rev_id = nbio_v7_0_get_rev_id,
291 .mc_access_enable = nbio_v7_0_mc_access_enable,
292 .hdp_flush = nbio_v7_0_hdp_flush,
293 .get_memsize = nbio_v7_0_get_memsize,
294 .sdma_doorbell_range = nbio_v7_0_sdma_doorbell_range,
295 .enable_doorbell_aperture = nbio_v7_0_enable_doorbell_aperture,
296 .enable_doorbell_selfring_aperture = nbio_v7_0_enable_doorbell_selfring_aperture,
297 .ih_doorbell_range = nbio_v7_0_ih_doorbell_range,
298 .update_medium_grain_clock_gating = nbio_v7_0_update_medium_grain_clock_gating,
299 .update_medium_grain_light_sleep = nbio_v7_0_update_medium_grain_light_sleep,
300 .get_clockgating_state = nbio_v7_0_get_clockgating_state,
301 .ih_control = nbio_v7_0_ih_control,
302 .init_registers = nbio_v7_0_init_registers,
303 .detect_hw_virt = nbio_v7_0_detect_hw_virt,
304};