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#define SWSMU_CODE_LAYER_L3
24
25#include <linux/firmware.h>
26#include "amdgpu.h"
27#include "amdgpu_smu.h"
28#include "atomfirmware.h"
29#include "amdgpu_atomfirmware.h"
30#include "amdgpu_atombios.h"
31#include "smu_v12_0.h"
32#include "soc15_common.h"
33#include "atom.h"
34#include "smu_cmn.h"
35
36#include "asic_reg/mp/mp_12_0_0_offset.h"
37#include "asic_reg/mp/mp_12_0_0_sh_mask.h"
38#include "asic_reg/smuio/smuio_12_0_0_offset.h"
39#include "asic_reg/smuio/smuio_12_0_0_sh_mask.h"
40
41/*
42 * DO NOT use these for err/warn/info/debug messages.
43 * Use dev_err, dev_warn, dev_info and dev_dbg instead.
44 * They are more MGPU friendly.
45 */
46#undef pr_err
47#undef pr_warn
48#undef pr_info
49#undef pr_debug
50
51// because some SMU12 based ASICs use older ip offset tables
52// we should undefine this register from the smuio12 header
53// to prevent confusion down the road
54#undef mmPWR_MISC_CNTL_STATUS
55
56#define smnMP1_FIRMWARE_FLAGS 0x3010024
57
58int smu_v12_0_check_fw_status(struct smu_context *smu)
59{
60 struct amdgpu_device *adev = smu->adev;
61 uint32_t mp1_fw_flags;
62
63 mp1_fw_flags = RREG32_PCIE(MP1_Public |
64 (smnMP1_FIRMWARE_FLAGS & 0xffffffff));
65
66 if ((mp1_fw_flags & MP1_FIRMWARE_FLAGS__INTERRUPTS_ENABLED_MASK) >>
67 MP1_FIRMWARE_FLAGS__INTERRUPTS_ENABLED__SHIFT)
68 return 0;
69
70 return -EIO;
71}
72
73int smu_v12_0_check_fw_version(struct smu_context *smu)
74{
75 struct amdgpu_device *adev = smu->adev;
76 uint32_t if_version = 0xff, smu_version = 0xff;
77 uint8_t smu_program, smu_major, smu_minor, smu_debug;
78 int ret = 0;
79
80 ret = smu_cmn_get_smc_version(smu, if_version: &if_version, smu_version: &smu_version);
81 if (ret)
82 return ret;
83
84 smu_program = (smu_version >> 24) & 0xff;
85 smu_major = (smu_version >> 16) & 0xff;
86 smu_minor = (smu_version >> 8) & 0xff;
87 smu_debug = (smu_version >> 0) & 0xff;
88 if (smu->is_apu)
89 adev->pm.fw_version = smu_version;
90
91 /*
92 * 1. if_version mismatch is not critical as our fw is designed
93 * to be backward compatible.
94 * 2. New fw usually brings some optimizations. But that's visible
95 * only on the paired driver.
96 * Considering above, we just leave user a verbal message instead
97 * of halt driver loading.
98 */
99 if (if_version != smu->smc_driver_if_version) {
100 dev_info(smu->adev->dev, "smu driver if version = 0x%08x, smu fw if version = 0x%08x, "
101 "smu fw program = %d, smu fw version = 0x%08x (%d.%d.%d)\n",
102 smu->smc_driver_if_version, if_version,
103 smu_program, smu_version, smu_major, smu_minor, smu_debug);
104 dev_info(smu->adev->dev, "SMU driver if version not matched\n");
105 }
106
107 return ret;
108}
109
110int smu_v12_0_powergate_sdma(struct smu_context *smu, bool gate)
111{
112 if (!smu->is_apu)
113 return 0;
114
115 if (gate)
116 return smu_cmn_send_smc_msg(smu, msg: SMU_MSG_PowerDownSdma, NULL);
117 else
118 return smu_cmn_send_smc_msg(smu, msg: SMU_MSG_PowerUpSdma, NULL);
119}
120
121int smu_v12_0_set_gfx_cgpg(struct smu_context *smu, bool enable)
122{
123 /* Until now the SMU12 only implemented for Renoir series so here neen't do APU check. */
124 if (!(smu->adev->pg_flags & AMD_PG_SUPPORT_GFX_PG) || smu->adev->in_s0ix)
125 return 0;
126
127 return smu_cmn_send_smc_msg_with_param(smu,
128 msg: SMU_MSG_SetGfxCGPG,
129 param: enable ? 1 : 0,
130 NULL);
131}
132
133/**
134 * smu_v12_0_get_gfxoff_status - get gfxoff status
135 *
136 * @smu: amdgpu_device pointer
137 *
138 * This function will be used to get gfxoff status
139 *
140 * Returns 0=GFXOFF(default).
141 * Returns 1=Transition out of GFX State.
142 * Returns 2=Not in GFXOFF.
143 * Returns 3=Transition into GFXOFF.
144 */
145uint32_t smu_v12_0_get_gfxoff_status(struct smu_context *smu)
146{
147 uint32_t reg;
148 uint32_t gfxOff_Status = 0;
149 struct amdgpu_device *adev = smu->adev;
150
151 reg = RREG32_SOC15(SMUIO, 0, mmSMUIO_GFX_MISC_CNTL);
152 gfxOff_Status = (reg & SMUIO_GFX_MISC_CNTL__PWR_GFXOFF_STATUS_MASK)
153 >> SMUIO_GFX_MISC_CNTL__PWR_GFXOFF_STATUS__SHIFT;
154
155 return gfxOff_Status;
156}
157
158int smu_v12_0_gfx_off_control(struct smu_context *smu, bool enable)
159{
160 int ret = 0, timeout = 500;
161
162 if (enable) {
163 ret = smu_cmn_send_smc_msg(smu, msg: SMU_MSG_AllowGfxOff, NULL);
164
165 } else {
166 ret = smu_cmn_send_smc_msg(smu, msg: SMU_MSG_DisallowGfxOff, NULL);
167
168 /* confirm gfx is back to "on" state, timeout is 0.5 second */
169 while (!(smu_v12_0_get_gfxoff_status(smu) == 2)) {
170 msleep(msecs: 1);
171 timeout--;
172 if (timeout == 0) {
173 DRM_ERROR("disable gfxoff timeout and failed!\n");
174 break;
175 }
176 }
177 }
178
179 return ret;
180}
181
182int smu_v12_0_fini_smc_tables(struct smu_context *smu)
183{
184 struct smu_table_context *smu_table = &smu->smu_table;
185
186 kfree(objp: smu_table->clocks_table);
187 smu_table->clocks_table = NULL;
188
189 kfree(objp: smu_table->metrics_table);
190 smu_table->metrics_table = NULL;
191
192 kfree(objp: smu_table->watermarks_table);
193 smu_table->watermarks_table = NULL;
194
195 kfree(objp: smu_table->gpu_metrics_table);
196 smu_table->gpu_metrics_table = NULL;
197
198 return 0;
199}
200
201int smu_v12_0_set_default_dpm_tables(struct smu_context *smu)
202{
203 struct smu_table_context *smu_table = &smu->smu_table;
204
205 return smu_cmn_update_table(smu, table_index: SMU_TABLE_DPMCLOCKS, argument: 0, table_data: smu_table->clocks_table, drv2smu: false);
206}
207
208int smu_v12_0_mode2_reset(struct smu_context *smu)
209{
210 return smu_cmn_send_smc_msg_with_param(smu, msg: SMU_MSG_GfxDeviceDriverReset, param: SMU_RESET_MODE_2, NULL);
211}
212
213int smu_v12_0_set_soft_freq_limited_range(struct smu_context *smu, enum smu_clk_type clk_type,
214 uint32_t min, uint32_t max, bool automatic)
215{
216 int ret = 0;
217
218 if (!smu_cmn_clk_dpm_is_enabled(smu, clk_type))
219 return 0;
220
221 switch (clk_type) {
222 case SMU_GFXCLK:
223 case SMU_SCLK:
224 ret = smu_cmn_send_smc_msg_with_param(smu, msg: SMU_MSG_SetHardMinGfxClk, param: min, NULL);
225 if (ret)
226 return ret;
227
228 ret = smu_cmn_send_smc_msg_with_param(smu, msg: SMU_MSG_SetSoftMaxGfxClk, param: max, NULL);
229 if (ret)
230 return ret;
231 break;
232 case SMU_FCLK:
233 case SMU_MCLK:
234 case SMU_UCLK:
235 ret = smu_cmn_send_smc_msg_with_param(smu, msg: SMU_MSG_SetHardMinFclkByFreq, param: min, NULL);
236 if (ret)
237 return ret;
238
239 ret = smu_cmn_send_smc_msg_with_param(smu, msg: SMU_MSG_SetSoftMaxFclkByFreq, param: max, NULL);
240 if (ret)
241 return ret;
242 break;
243 case SMU_SOCCLK:
244 ret = smu_cmn_send_smc_msg_with_param(smu, msg: SMU_MSG_SetHardMinSocclkByFreq, param: min, NULL);
245 if (ret)
246 return ret;
247
248 ret = smu_cmn_send_smc_msg_with_param(smu, msg: SMU_MSG_SetSoftMaxSocclkByFreq, param: max, NULL);
249 if (ret)
250 return ret;
251 break;
252 case SMU_VCLK:
253 ret = smu_cmn_send_smc_msg_with_param(smu, msg: SMU_MSG_SetHardMinVcn, param: min, NULL);
254 if (ret)
255 return ret;
256
257 ret = smu_cmn_send_smc_msg_with_param(smu, msg: SMU_MSG_SetSoftMaxVcn, param: max, NULL);
258 if (ret)
259 return ret;
260 break;
261 default:
262 return -EINVAL;
263 }
264
265 return ret;
266}
267
268int smu_v12_0_set_driver_table_location(struct smu_context *smu)
269{
270 struct smu_table *driver_table = &smu->smu_table.driver_table;
271 int ret = 0;
272
273 if (driver_table->mc_address) {
274 ret = smu_cmn_send_smc_msg_with_param(smu,
275 msg: SMU_MSG_SetDriverDramAddrHigh,
276 upper_32_bits(driver_table->mc_address),
277 NULL);
278 if (!ret)
279 ret = smu_cmn_send_smc_msg_with_param(smu,
280 msg: SMU_MSG_SetDriverDramAddrLow,
281 lower_32_bits(driver_table->mc_address),
282 NULL);
283 }
284
285 return ret;
286}
287
288static int smu_v12_0_atom_get_smu_clockinfo(struct amdgpu_device *adev,
289 uint8_t clk_id,
290 uint8_t syspll_id,
291 uint32_t *clk_freq)
292{
293 struct atom_get_smu_clock_info_parameters_v3_1 input = {0};
294 struct atom_get_smu_clock_info_output_parameters_v3_1 *output;
295 int ret, index;
296
297 input.clk_id = clk_id;
298 input.syspll_id = syspll_id;
299 input.command = GET_SMU_CLOCK_INFO_V3_1_GET_CLOCK_FREQ;
300 index = get_index_into_master_table(atom_master_list_of_command_functions_v2_1,
301 getsmuclockinfo);
302
303 ret = amdgpu_atom_execute_table(ctx: adev->mode_info.atom_context, index,
304 params: (uint32_t *)&input, params_size: sizeof(input));
305 if (ret)
306 return -EINVAL;
307
308 output = (struct atom_get_smu_clock_info_output_parameters_v3_1 *)&input;
309 *clk_freq = le32_to_cpu(output->atom_smu_outputclkfreq.smu_clock_freq_hz) / 10000;
310
311 return 0;
312}
313
314int smu_v12_0_get_vbios_bootup_values(struct smu_context *smu)
315{
316 int ret, index;
317 uint16_t size;
318 uint8_t frev, crev;
319 struct atom_common_table_header *header;
320 struct atom_firmware_info_v3_1 *v_3_1;
321 struct atom_firmware_info_v3_3 *v_3_3;
322
323 index = get_index_into_master_table(atom_master_list_of_data_tables_v2_1,
324 firmwareinfo);
325
326 ret = amdgpu_atombios_get_data_table(adev: smu->adev, table: index, size: &size, frev: &frev, crev: &crev,
327 addr: (uint8_t **)&header);
328 if (ret)
329 return ret;
330
331 if (header->format_revision != 3) {
332 dev_err(smu->adev->dev, "unknown atom_firmware_info version! for smu12\n");
333 return -EINVAL;
334 }
335
336 switch (header->content_revision) {
337 case 0:
338 case 1:
339 case 2:
340 v_3_1 = (struct atom_firmware_info_v3_1 *)header;
341 smu->smu_table.boot_values.revision = v_3_1->firmware_revision;
342 smu->smu_table.boot_values.gfxclk = v_3_1->bootup_sclk_in10khz;
343 smu->smu_table.boot_values.uclk = v_3_1->bootup_mclk_in10khz;
344 smu->smu_table.boot_values.socclk = 0;
345 smu->smu_table.boot_values.dcefclk = 0;
346 smu->smu_table.boot_values.vddc = v_3_1->bootup_vddc_mv;
347 smu->smu_table.boot_values.vddci = v_3_1->bootup_vddci_mv;
348 smu->smu_table.boot_values.mvddc = v_3_1->bootup_mvddc_mv;
349 smu->smu_table.boot_values.vdd_gfx = v_3_1->bootup_vddgfx_mv;
350 smu->smu_table.boot_values.cooling_id = v_3_1->coolingsolution_id;
351 smu->smu_table.boot_values.pp_table_id = 0;
352 smu->smu_table.boot_values.firmware_caps = v_3_1->firmware_capability;
353 break;
354 case 3:
355 case 4:
356 default:
357 v_3_3 = (struct atom_firmware_info_v3_3 *)header;
358 smu->smu_table.boot_values.revision = v_3_3->firmware_revision;
359 smu->smu_table.boot_values.gfxclk = v_3_3->bootup_sclk_in10khz;
360 smu->smu_table.boot_values.uclk = v_3_3->bootup_mclk_in10khz;
361 smu->smu_table.boot_values.socclk = 0;
362 smu->smu_table.boot_values.dcefclk = 0;
363 smu->smu_table.boot_values.vddc = v_3_3->bootup_vddc_mv;
364 smu->smu_table.boot_values.vddci = v_3_3->bootup_vddci_mv;
365 smu->smu_table.boot_values.mvddc = v_3_3->bootup_mvddc_mv;
366 smu->smu_table.boot_values.vdd_gfx = v_3_3->bootup_vddgfx_mv;
367 smu->smu_table.boot_values.cooling_id = v_3_3->coolingsolution_id;
368 smu->smu_table.boot_values.pp_table_id = v_3_3->pplib_pptable_id;
369 smu->smu_table.boot_values.firmware_caps = v_3_3->firmware_capability;
370 }
371
372 smu->smu_table.boot_values.format_revision = header->format_revision;
373 smu->smu_table.boot_values.content_revision = header->content_revision;
374
375 smu_v12_0_atom_get_smu_clockinfo(adev: smu->adev,
376 clk_id: (uint8_t)SMU12_SYSPLL0_SOCCLK_ID,
377 syspll_id: (uint8_t)SMU12_SYSPLL0_ID,
378 clk_freq: &smu->smu_table.boot_values.socclk);
379
380 smu_v12_0_atom_get_smu_clockinfo(adev: smu->adev,
381 clk_id: (uint8_t)SMU12_SYSPLL1_DCFCLK_ID,
382 syspll_id: (uint8_t)SMU12_SYSPLL1_ID,
383 clk_freq: &smu->smu_table.boot_values.dcefclk);
384
385 smu_v12_0_atom_get_smu_clockinfo(adev: smu->adev,
386 clk_id: (uint8_t)SMU12_SYSPLL0_VCLK_ID,
387 syspll_id: (uint8_t)SMU12_SYSPLL0_ID,
388 clk_freq: &smu->smu_table.boot_values.vclk);
389
390 smu_v12_0_atom_get_smu_clockinfo(adev: smu->adev,
391 clk_id: (uint8_t)SMU12_SYSPLL0_DCLK_ID,
392 syspll_id: (uint8_t)SMU12_SYSPLL0_ID,
393 clk_freq: &smu->smu_table.boot_values.dclk);
394
395 if ((smu->smu_table.boot_values.format_revision == 3) &&
396 (smu->smu_table.boot_values.content_revision >= 2))
397 smu_v12_0_atom_get_smu_clockinfo(adev: smu->adev,
398 clk_id: (uint8_t)SMU12_SYSPLL3_0_FCLK_ID,
399 syspll_id: (uint8_t)SMU12_SYSPLL3_0_ID,
400 clk_freq: &smu->smu_table.boot_values.fclk);
401
402 smu_v12_0_atom_get_smu_clockinfo(adev: smu->adev,
403 clk_id: (uint8_t)SMU12_SYSPLL0_LCLK_ID,
404 syspll_id: (uint8_t)SMU12_SYSPLL0_ID,
405 clk_freq: &smu->smu_table.boot_values.lclk);
406
407 return 0;
408}
409

source code of linux/drivers/gpu/drm/amd/pm/swsmu/smu12/smu_v12_0.c