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[mirror_ubuntu-artful-kernel.git] / drivers / gpu / drm / radeon / rv770_dpm.c
1 /*
2 * Copyright 2011 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 * Authors: Alex Deucher
23 */
24
25 #include "drmP.h"
26 #include "radeon.h"
27 #include "radeon_asic.h"
28 #include "rv770d.h"
29 #include "r600_dpm.h"
30 #include "rv770_dpm.h"
31 #include "cypress_dpm.h"
32 #include "atom.h"
33 #include <linux/seq_file.h>
34
35 #define MC_CG_ARB_FREQ_F0 0x0a
36 #define MC_CG_ARB_FREQ_F1 0x0b
37 #define MC_CG_ARB_FREQ_F2 0x0c
38 #define MC_CG_ARB_FREQ_F3 0x0d
39
40 #define MC_CG_SEQ_DRAMCONF_S0 0x05
41 #define MC_CG_SEQ_DRAMCONF_S1 0x06
42
43 #define PCIE_BUS_CLK 10000
44 #define TCLK (PCIE_BUS_CLK / 10)
45
46 #define SMC_RAM_END 0xC000
47
48 struct rv7xx_ps *rv770_get_ps(struct radeon_ps *rps)
49 {
50 struct rv7xx_ps *ps = rps->ps_priv;
51
52 return ps;
53 }
54
55 struct rv7xx_power_info *rv770_get_pi(struct radeon_device *rdev)
56 {
57 struct rv7xx_power_info *pi = rdev->pm.dpm.priv;
58
59 return pi;
60 }
61
62 struct evergreen_power_info *evergreen_get_pi(struct radeon_device *rdev)
63 {
64 struct evergreen_power_info *pi = rdev->pm.dpm.priv;
65
66 return pi;
67 }
68
69 static void rv770_enable_bif_dynamic_pcie_gen2(struct radeon_device *rdev,
70 bool enable)
71 {
72 struct rv7xx_power_info *pi = rv770_get_pi(rdev);
73 u32 tmp;
74
75 tmp = RREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL);
76 if (enable) {
77 tmp &= ~LC_HW_VOLTAGE_IF_CONTROL_MASK;
78 tmp |= LC_HW_VOLTAGE_IF_CONTROL(1);
79 tmp |= LC_GEN2_EN_STRAP;
80 } else {
81 if (!pi->boot_in_gen2) {
82 tmp &= ~LC_HW_VOLTAGE_IF_CONTROL_MASK;
83 tmp &= ~LC_GEN2_EN_STRAP;
84 }
85 }
86 if ((tmp & LC_OTHER_SIDE_EVER_SENT_GEN2) ||
87 (tmp & LC_OTHER_SIDE_SUPPORTS_GEN2))
88 WREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL, tmp);
89
90 }
91
92 static void rv770_enable_l0s(struct radeon_device *rdev)
93 {
94 u32 tmp;
95
96 tmp = RREG32_PCIE_PORT(PCIE_LC_CNTL) & ~LC_L0S_INACTIVITY_MASK;
97 tmp |= LC_L0S_INACTIVITY(3);
98 WREG32_PCIE_PORT(PCIE_LC_CNTL, tmp);
99 }
100
101 static void rv770_enable_l1(struct radeon_device *rdev)
102 {
103 u32 tmp;
104
105 tmp = RREG32_PCIE_PORT(PCIE_LC_CNTL);
106 tmp &= ~LC_L1_INACTIVITY_MASK;
107 tmp |= LC_L1_INACTIVITY(4);
108 tmp &= ~LC_PMI_TO_L1_DIS;
109 tmp &= ~LC_ASPM_TO_L1_DIS;
110 WREG32_PCIE_PORT(PCIE_LC_CNTL, tmp);
111 }
112
113 static void rv770_enable_pll_sleep_in_l1(struct radeon_device *rdev)
114 {
115 u32 tmp;
116
117 tmp = RREG32_PCIE_PORT(PCIE_LC_CNTL) & ~LC_L1_INACTIVITY_MASK;
118 tmp |= LC_L1_INACTIVITY(8);
119 WREG32_PCIE_PORT(PCIE_LC_CNTL, tmp);
120
121 /* NOTE, this is a PCIE indirect reg, not PCIE PORT */
122 tmp = RREG32_PCIE(PCIE_P_CNTL);
123 tmp |= P_PLL_PWRDN_IN_L1L23;
124 tmp &= ~P_PLL_BUF_PDNB;
125 tmp &= ~P_PLL_PDNB;
126 tmp |= P_ALLOW_PRX_FRONTEND_SHUTOFF;
127 WREG32_PCIE(PCIE_P_CNTL, tmp);
128 }
129
130 static void rv770_gfx_clock_gating_enable(struct radeon_device *rdev,
131 bool enable)
132 {
133 if (enable)
134 WREG32_P(SCLK_PWRMGT_CNTL, DYN_GFX_CLK_OFF_EN, ~DYN_GFX_CLK_OFF_EN);
135 else {
136 WREG32_P(SCLK_PWRMGT_CNTL, 0, ~DYN_GFX_CLK_OFF_EN);
137 WREG32_P(SCLK_PWRMGT_CNTL, GFX_CLK_FORCE_ON, ~GFX_CLK_FORCE_ON);
138 WREG32_P(SCLK_PWRMGT_CNTL, 0, ~GFX_CLK_FORCE_ON);
139 RREG32(GB_TILING_CONFIG);
140 }
141 }
142
143 static void rv770_mg_clock_gating_enable(struct radeon_device *rdev,
144 bool enable)
145 {
146 struct rv7xx_power_info *pi = rv770_get_pi(rdev);
147
148 if (enable) {
149 u32 mgcg_cgtt_local0;
150
151 if (rdev->family == CHIP_RV770)
152 mgcg_cgtt_local0 = RV770_MGCGTTLOCAL0_DFLT;
153 else
154 mgcg_cgtt_local0 = RV7XX_MGCGTTLOCAL0_DFLT;
155
156 WREG32(CG_CGTT_LOCAL_0, mgcg_cgtt_local0);
157 WREG32(CG_CGTT_LOCAL_1, (RV770_MGCGTTLOCAL1_DFLT & 0xFFFFCFFF));
158
159 if (pi->mgcgtssm)
160 WREG32(CGTS_SM_CTRL_REG, RV770_MGCGCGTSSMCTRL_DFLT);
161 } else {
162 WREG32(CG_CGTT_LOCAL_0, 0xFFFFFFFF);
163 WREG32(CG_CGTT_LOCAL_1, 0xFFFFCFFF);
164 }
165 }
166
167 void rv770_restore_cgcg(struct radeon_device *rdev)
168 {
169 bool dpm_en = false, cg_en = false;
170
171 if (RREG32(GENERAL_PWRMGT) & GLOBAL_PWRMGT_EN)
172 dpm_en = true;
173 if (RREG32(SCLK_PWRMGT_CNTL) & DYN_GFX_CLK_OFF_EN)
174 cg_en = true;
175
176 if (dpm_en && !cg_en)
177 WREG32_P(SCLK_PWRMGT_CNTL, DYN_GFX_CLK_OFF_EN, ~DYN_GFX_CLK_OFF_EN);
178 }
179
180 static void rv770_start_dpm(struct radeon_device *rdev)
181 {
182 WREG32_P(SCLK_PWRMGT_CNTL, 0, ~SCLK_PWRMGT_OFF);
183
184 WREG32_P(MCLK_PWRMGT_CNTL, 0, ~MPLL_PWRMGT_OFF);
185
186 WREG32_P(GENERAL_PWRMGT, GLOBAL_PWRMGT_EN, ~GLOBAL_PWRMGT_EN);
187 }
188
189 void rv770_stop_dpm(struct radeon_device *rdev)
190 {
191 PPSMC_Result result;
192
193 result = rv770_send_msg_to_smc(rdev, PPSMC_MSG_TwoLevelsDisabled);
194
195 if (result != PPSMC_Result_OK)
196 DRM_DEBUG("Could not force DPM to low.\n");
197
198 WREG32_P(GENERAL_PWRMGT, 0, ~GLOBAL_PWRMGT_EN);
199
200 WREG32_P(SCLK_PWRMGT_CNTL, SCLK_PWRMGT_OFF, ~SCLK_PWRMGT_OFF);
201
202 WREG32_P(MCLK_PWRMGT_CNTL, MPLL_PWRMGT_OFF, ~MPLL_PWRMGT_OFF);
203 }
204
205 bool rv770_dpm_enabled(struct radeon_device *rdev)
206 {
207 if (RREG32(GENERAL_PWRMGT) & GLOBAL_PWRMGT_EN)
208 return true;
209 else
210 return false;
211 }
212
213 void rv770_enable_thermal_protection(struct radeon_device *rdev,
214 bool enable)
215 {
216 if (enable)
217 WREG32_P(GENERAL_PWRMGT, 0, ~THERMAL_PROTECTION_DIS);
218 else
219 WREG32_P(GENERAL_PWRMGT, THERMAL_PROTECTION_DIS, ~THERMAL_PROTECTION_DIS);
220 }
221
222 void rv770_enable_acpi_pm(struct radeon_device *rdev)
223 {
224 WREG32_P(GENERAL_PWRMGT, STATIC_PM_EN, ~STATIC_PM_EN);
225 }
226
227 u8 rv770_get_seq_value(struct radeon_device *rdev,
228 struct rv7xx_pl *pl)
229 {
230 return (pl->flags & ATOM_PPLIB_R600_FLAGS_LOWPOWER) ?
231 MC_CG_SEQ_DRAMCONF_S0 : MC_CG_SEQ_DRAMCONF_S1;
232 }
233
234 #if 0
235 int rv770_read_smc_soft_register(struct radeon_device *rdev,
236 u16 reg_offset, u32 *value)
237 {
238 struct rv7xx_power_info *pi = rv770_get_pi(rdev);
239
240 return rv770_read_smc_sram_dword(rdev,
241 pi->soft_regs_start + reg_offset,
242 value, pi->sram_end);
243 }
244 #endif
245
246 int rv770_write_smc_soft_register(struct radeon_device *rdev,
247 u16 reg_offset, u32 value)
248 {
249 struct rv7xx_power_info *pi = rv770_get_pi(rdev);
250
251 return rv770_write_smc_sram_dword(rdev,
252 pi->soft_regs_start + reg_offset,
253 value, pi->sram_end);
254 }
255
256 int rv770_populate_smc_t(struct radeon_device *rdev,
257 struct radeon_ps *radeon_state,
258 RV770_SMC_SWSTATE *smc_state)
259 {
260 struct rv7xx_ps *state = rv770_get_ps(radeon_state);
261 struct rv7xx_power_info *pi = rv770_get_pi(rdev);
262 int i;
263 int a_n;
264 int a_d;
265 u8 l[RV770_SMC_PERFORMANCE_LEVELS_PER_SWSTATE];
266 u8 r[RV770_SMC_PERFORMANCE_LEVELS_PER_SWSTATE];
267 u32 a_t;
268
269 l[0] = 0;
270 r[2] = 100;
271
272 a_n = (int)state->medium.sclk * pi->lmp +
273 (int)state->low.sclk * (R600_AH_DFLT - pi->rlp);
274 a_d = (int)state->low.sclk * (100 - (int)pi->rlp) +
275 (int)state->medium.sclk * pi->lmp;
276
277 l[1] = (u8)(pi->lmp - (int)pi->lmp * a_n / a_d);
278 r[0] = (u8)(pi->rlp + (100 - (int)pi->rlp) * a_n / a_d);
279
280 a_n = (int)state->high.sclk * pi->lhp + (int)state->medium.sclk *
281 (R600_AH_DFLT - pi->rmp);
282 a_d = (int)state->medium.sclk * (100 - (int)pi->rmp) +
283 (int)state->high.sclk * pi->lhp;
284
285 l[2] = (u8)(pi->lhp - (int)pi->lhp * a_n / a_d);
286 r[1] = (u8)(pi->rmp + (100 - (int)pi->rmp) * a_n / a_d);
287
288 for (i = 0; i < (RV770_SMC_PERFORMANCE_LEVELS_PER_SWSTATE - 1); i++) {
289 a_t = CG_R(r[i] * pi->bsp / 200) | CG_L(l[i] * pi->bsp / 200);
290 smc_state->levels[i].aT = cpu_to_be32(a_t);
291 }
292
293 a_t = CG_R(r[RV770_SMC_PERFORMANCE_LEVELS_PER_SWSTATE - 1] * pi->pbsp / 200) |
294 CG_L(l[RV770_SMC_PERFORMANCE_LEVELS_PER_SWSTATE - 1] * pi->pbsp / 200);
295
296 smc_state->levels[RV770_SMC_PERFORMANCE_LEVELS_PER_SWSTATE - 1].aT =
297 cpu_to_be32(a_t);
298
299 return 0;
300 }
301
302 int rv770_populate_smc_sp(struct radeon_device *rdev,
303 struct radeon_ps *radeon_state,
304 RV770_SMC_SWSTATE *smc_state)
305 {
306 struct rv7xx_power_info *pi = rv770_get_pi(rdev);
307 int i;
308
309 for (i = 0; i < (RV770_SMC_PERFORMANCE_LEVELS_PER_SWSTATE - 1); i++)
310 smc_state->levels[i].bSP = cpu_to_be32(pi->dsp);
311
312 smc_state->levels[RV770_SMC_PERFORMANCE_LEVELS_PER_SWSTATE - 1].bSP =
313 cpu_to_be32(pi->psp);
314
315 return 0;
316 }
317
318 static void rv770_calculate_fractional_mpll_feedback_divider(u32 memory_clock,
319 u32 reference_clock,
320 bool gddr5,
321 struct atom_clock_dividers *dividers,
322 u32 *clkf,
323 u32 *clkfrac)
324 {
325 u32 post_divider, reference_divider, feedback_divider8;
326 u32 fyclk;
327
328 if (gddr5)
329 fyclk = (memory_clock * 8) / 2;
330 else
331 fyclk = (memory_clock * 4) / 2;
332
333 post_divider = dividers->post_div;
334 reference_divider = dividers->ref_div;
335
336 feedback_divider8 =
337 (8 * fyclk * reference_divider * post_divider) / reference_clock;
338
339 *clkf = feedback_divider8 / 8;
340 *clkfrac = feedback_divider8 % 8;
341 }
342
343 static int rv770_encode_yclk_post_div(u32 postdiv, u32 *encoded_postdiv)
344 {
345 int ret = 0;
346
347 switch (postdiv) {
348 case 1:
349 *encoded_postdiv = 0;
350 break;
351 case 2:
352 *encoded_postdiv = 1;
353 break;
354 case 4:
355 *encoded_postdiv = 2;
356 break;
357 case 8:
358 *encoded_postdiv = 3;
359 break;
360 case 16:
361 *encoded_postdiv = 4;
362 break;
363 default:
364 ret = -EINVAL;
365 break;
366 }
367
368 return ret;
369 }
370
371 u32 rv770_map_clkf_to_ibias(struct radeon_device *rdev, u32 clkf)
372 {
373 if (clkf <= 0x10)
374 return 0x4B;
375 if (clkf <= 0x19)
376 return 0x5B;
377 if (clkf <= 0x21)
378 return 0x2B;
379 if (clkf <= 0x27)
380 return 0x6C;
381 if (clkf <= 0x31)
382 return 0x9D;
383 return 0xC6;
384 }
385
386 static int rv770_populate_mclk_value(struct radeon_device *rdev,
387 u32 engine_clock, u32 memory_clock,
388 RV7XX_SMC_MCLK_VALUE *mclk)
389 {
390 struct rv7xx_power_info *pi = rv770_get_pi(rdev);
391 u8 encoded_reference_dividers[] = { 0, 16, 17, 20, 21 };
392 u32 mpll_ad_func_cntl =
393 pi->clk_regs.rv770.mpll_ad_func_cntl;
394 u32 mpll_ad_func_cntl_2 =
395 pi->clk_regs.rv770.mpll_ad_func_cntl_2;
396 u32 mpll_dq_func_cntl =
397 pi->clk_regs.rv770.mpll_dq_func_cntl;
398 u32 mpll_dq_func_cntl_2 =
399 pi->clk_regs.rv770.mpll_dq_func_cntl_2;
400 u32 mclk_pwrmgt_cntl =
401 pi->clk_regs.rv770.mclk_pwrmgt_cntl;
402 u32 dll_cntl = pi->clk_regs.rv770.dll_cntl;
403 struct atom_clock_dividers dividers;
404 u32 reference_clock = rdev->clock.mpll.reference_freq;
405 u32 clkf, clkfrac;
406 u32 postdiv_yclk;
407 u32 ibias;
408 int ret;
409
410 ret = radeon_atom_get_clock_dividers(rdev, COMPUTE_MEMORY_PLL_PARAM,
411 memory_clock, false, &dividers);
412 if (ret)
413 return ret;
414
415 if ((dividers.ref_div < 1) || (dividers.ref_div > 5))
416 return -EINVAL;
417
418 rv770_calculate_fractional_mpll_feedback_divider(memory_clock, reference_clock,
419 pi->mem_gddr5,
420 &dividers, &clkf, &clkfrac);
421
422 ret = rv770_encode_yclk_post_div(dividers.post_div, &postdiv_yclk);
423 if (ret)
424 return ret;
425
426 ibias = rv770_map_clkf_to_ibias(rdev, clkf);
427
428 mpll_ad_func_cntl &= ~(CLKR_MASK |
429 YCLK_POST_DIV_MASK |
430 CLKF_MASK |
431 CLKFRAC_MASK |
432 IBIAS_MASK);
433 mpll_ad_func_cntl |= CLKR(encoded_reference_dividers[dividers.ref_div - 1]);
434 mpll_ad_func_cntl |= YCLK_POST_DIV(postdiv_yclk);
435 mpll_ad_func_cntl |= CLKF(clkf);
436 mpll_ad_func_cntl |= CLKFRAC(clkfrac);
437 mpll_ad_func_cntl |= IBIAS(ibias);
438
439 if (dividers.vco_mode)
440 mpll_ad_func_cntl_2 |= VCO_MODE;
441 else
442 mpll_ad_func_cntl_2 &= ~VCO_MODE;
443
444 if (pi->mem_gddr5) {
445 rv770_calculate_fractional_mpll_feedback_divider(memory_clock,
446 reference_clock,
447 pi->mem_gddr5,
448 &dividers, &clkf, &clkfrac);
449
450 ibias = rv770_map_clkf_to_ibias(rdev, clkf);
451
452 ret = rv770_encode_yclk_post_div(dividers.post_div, &postdiv_yclk);
453 if (ret)
454 return ret;
455
456 mpll_dq_func_cntl &= ~(CLKR_MASK |
457 YCLK_POST_DIV_MASK |
458 CLKF_MASK |
459 CLKFRAC_MASK |
460 IBIAS_MASK);
461 mpll_dq_func_cntl |= CLKR(encoded_reference_dividers[dividers.ref_div - 1]);
462 mpll_dq_func_cntl |= YCLK_POST_DIV(postdiv_yclk);
463 mpll_dq_func_cntl |= CLKF(clkf);
464 mpll_dq_func_cntl |= CLKFRAC(clkfrac);
465 mpll_dq_func_cntl |= IBIAS(ibias);
466
467 if (dividers.vco_mode)
468 mpll_dq_func_cntl_2 |= VCO_MODE;
469 else
470 mpll_dq_func_cntl_2 &= ~VCO_MODE;
471 }
472
473 mclk->mclk770.mclk_value = cpu_to_be32(memory_clock);
474 mclk->mclk770.vMPLL_AD_FUNC_CNTL = cpu_to_be32(mpll_ad_func_cntl);
475 mclk->mclk770.vMPLL_AD_FUNC_CNTL_2 = cpu_to_be32(mpll_ad_func_cntl_2);
476 mclk->mclk770.vMPLL_DQ_FUNC_CNTL = cpu_to_be32(mpll_dq_func_cntl);
477 mclk->mclk770.vMPLL_DQ_FUNC_CNTL_2 = cpu_to_be32(mpll_dq_func_cntl_2);
478 mclk->mclk770.vMCLK_PWRMGT_CNTL = cpu_to_be32(mclk_pwrmgt_cntl);
479 mclk->mclk770.vDLL_CNTL = cpu_to_be32(dll_cntl);
480
481 return 0;
482 }
483
484 static int rv770_populate_sclk_value(struct radeon_device *rdev,
485 u32 engine_clock,
486 RV770_SMC_SCLK_VALUE *sclk)
487 {
488 struct rv7xx_power_info *pi = rv770_get_pi(rdev);
489 struct atom_clock_dividers dividers;
490 u32 spll_func_cntl =
491 pi->clk_regs.rv770.cg_spll_func_cntl;
492 u32 spll_func_cntl_2 =
493 pi->clk_regs.rv770.cg_spll_func_cntl_2;
494 u32 spll_func_cntl_3 =
495 pi->clk_regs.rv770.cg_spll_func_cntl_3;
496 u32 cg_spll_spread_spectrum =
497 pi->clk_regs.rv770.cg_spll_spread_spectrum;
498 u32 cg_spll_spread_spectrum_2 =
499 pi->clk_regs.rv770.cg_spll_spread_spectrum_2;
500 u64 tmp;
501 u32 reference_clock = rdev->clock.spll.reference_freq;
502 u32 reference_divider, post_divider;
503 u32 fbdiv;
504 int ret;
505
506 ret = radeon_atom_get_clock_dividers(rdev, COMPUTE_ENGINE_PLL_PARAM,
507 engine_clock, false, &dividers);
508 if (ret)
509 return ret;
510
511 reference_divider = 1 + dividers.ref_div;
512
513 if (dividers.enable_post_div)
514 post_divider = (0x0f & (dividers.post_div >> 4)) + (0x0f & dividers.post_div) + 2;
515 else
516 post_divider = 1;
517
518 tmp = (u64) engine_clock * reference_divider * post_divider * 16384;
519 do_div(tmp, reference_clock);
520 fbdiv = (u32) tmp;
521
522 if (dividers.enable_post_div)
523 spll_func_cntl |= SPLL_DIVEN;
524 else
525 spll_func_cntl &= ~SPLL_DIVEN;
526 spll_func_cntl &= ~(SPLL_HILEN_MASK | SPLL_LOLEN_MASK | SPLL_REF_DIV_MASK);
527 spll_func_cntl |= SPLL_REF_DIV(dividers.ref_div);
528 spll_func_cntl |= SPLL_HILEN((dividers.post_div >> 4) & 0xf);
529 spll_func_cntl |= SPLL_LOLEN(dividers.post_div & 0xf);
530
531 spll_func_cntl_2 &= ~SCLK_MUX_SEL_MASK;
532 spll_func_cntl_2 |= SCLK_MUX_SEL(2);
533
534 spll_func_cntl_3 &= ~SPLL_FB_DIV_MASK;
535 spll_func_cntl_3 |= SPLL_FB_DIV(fbdiv);
536 spll_func_cntl_3 |= SPLL_DITHEN;
537
538 if (pi->sclk_ss) {
539 struct radeon_atom_ss ss;
540 u32 vco_freq = engine_clock * post_divider;
541
542 if (radeon_atombios_get_asic_ss_info(rdev, &ss,
543 ASIC_INTERNAL_ENGINE_SS, vco_freq)) {
544 u32 clk_s = reference_clock * 5 / (reference_divider * ss.rate);
545 u32 clk_v = ss.percentage * fbdiv / (clk_s * 10000);
546
547 cg_spll_spread_spectrum &= ~CLKS_MASK;
548 cg_spll_spread_spectrum |= CLKS(clk_s);
549 cg_spll_spread_spectrum |= SSEN;
550
551 cg_spll_spread_spectrum_2 &= ~CLKV_MASK;
552 cg_spll_spread_spectrum_2 |= CLKV(clk_v);
553 }
554 }
555
556 sclk->sclk_value = cpu_to_be32(engine_clock);
557 sclk->vCG_SPLL_FUNC_CNTL = cpu_to_be32(spll_func_cntl);
558 sclk->vCG_SPLL_FUNC_CNTL_2 = cpu_to_be32(spll_func_cntl_2);
559 sclk->vCG_SPLL_FUNC_CNTL_3 = cpu_to_be32(spll_func_cntl_3);
560 sclk->vCG_SPLL_SPREAD_SPECTRUM = cpu_to_be32(cg_spll_spread_spectrum);
561 sclk->vCG_SPLL_SPREAD_SPECTRUM_2 = cpu_to_be32(cg_spll_spread_spectrum_2);
562
563 return 0;
564 }
565
566 int rv770_populate_vddc_value(struct radeon_device *rdev, u16 vddc,
567 RV770_SMC_VOLTAGE_VALUE *voltage)
568 {
569 struct rv7xx_power_info *pi = rv770_get_pi(rdev);
570 int i;
571
572 if (!pi->voltage_control) {
573 voltage->index = 0;
574 voltage->value = 0;
575 return 0;
576 }
577
578 for (i = 0; i < pi->valid_vddc_entries; i++) {
579 if (vddc <= pi->vddc_table[i].vddc) {
580 voltage->index = pi->vddc_table[i].vddc_index;
581 voltage->value = cpu_to_be16(vddc);
582 break;
583 }
584 }
585
586 if (i == pi->valid_vddc_entries)
587 return -EINVAL;
588
589 return 0;
590 }
591
592 int rv770_populate_mvdd_value(struct radeon_device *rdev, u32 mclk,
593 RV770_SMC_VOLTAGE_VALUE *voltage)
594 {
595 struct rv7xx_power_info *pi = rv770_get_pi(rdev);
596
597 if (!pi->mvdd_control) {
598 voltage->index = MVDD_HIGH_INDEX;
599 voltage->value = cpu_to_be16(MVDD_HIGH_VALUE);
600 return 0;
601 }
602
603 if (mclk <= pi->mvdd_split_frequency) {
604 voltage->index = MVDD_LOW_INDEX;
605 voltage->value = cpu_to_be16(MVDD_LOW_VALUE);
606 } else {
607 voltage->index = MVDD_HIGH_INDEX;
608 voltage->value = cpu_to_be16(MVDD_HIGH_VALUE);
609 }
610
611 return 0;
612 }
613
614 static int rv770_convert_power_level_to_smc(struct radeon_device *rdev,
615 struct rv7xx_pl *pl,
616 RV770_SMC_HW_PERFORMANCE_LEVEL *level,
617 u8 watermark_level)
618 {
619 struct rv7xx_power_info *pi = rv770_get_pi(rdev);
620 int ret;
621
622 level->gen2PCIE = pi->pcie_gen2 ?
623 ((pl->flags & ATOM_PPLIB_R600_FLAGS_PCIEGEN2) ? 1 : 0) : 0;
624 level->gen2XSP = (pl->flags & ATOM_PPLIB_R600_FLAGS_PCIEGEN2) ? 1 : 0;
625 level->backbias = (pl->flags & ATOM_PPLIB_R600_FLAGS_BACKBIASENABLE) ? 1 : 0;
626 level->displayWatermark = watermark_level;
627
628 if (rdev->family == CHIP_RV740)
629 ret = rv740_populate_sclk_value(rdev, pl->sclk,
630 &level->sclk);
631 else if ((rdev->family == CHIP_RV730) || (rdev->family == CHIP_RV710))
632 ret = rv730_populate_sclk_value(rdev, pl->sclk,
633 &level->sclk);
634 else
635 ret = rv770_populate_sclk_value(rdev, pl->sclk,
636 &level->sclk);
637 if (ret)
638 return ret;
639
640 if (rdev->family == CHIP_RV740) {
641 if (pi->mem_gddr5) {
642 if (pl->mclk <= pi->mclk_strobe_mode_threshold)
643 level->strobeMode =
644 rv740_get_mclk_frequency_ratio(pl->mclk) | 0x10;
645 else
646 level->strobeMode = 0;
647
648 if (pl->mclk > pi->mclk_edc_enable_threshold)
649 level->mcFlags = SMC_MC_EDC_RD_FLAG | SMC_MC_EDC_WR_FLAG;
650 else
651 level->mcFlags = 0;
652 }
653 ret = rv740_populate_mclk_value(rdev, pl->sclk,
654 pl->mclk, &level->mclk);
655 } else if ((rdev->family == CHIP_RV730) || (rdev->family == CHIP_RV710))
656 ret = rv730_populate_mclk_value(rdev, pl->sclk,
657 pl->mclk, &level->mclk);
658 else
659 ret = rv770_populate_mclk_value(rdev, pl->sclk,
660 pl->mclk, &level->mclk);
661 if (ret)
662 return ret;
663
664 ret = rv770_populate_vddc_value(rdev, pl->vddc,
665 &level->vddc);
666 if (ret)
667 return ret;
668
669 ret = rv770_populate_mvdd_value(rdev, pl->mclk, &level->mvdd);
670
671 return ret;
672 }
673
674 static int rv770_convert_power_state_to_smc(struct radeon_device *rdev,
675 struct radeon_ps *radeon_state,
676 RV770_SMC_SWSTATE *smc_state)
677 {
678 struct rv7xx_ps *state = rv770_get_ps(radeon_state);
679 int ret;
680
681 if (!(radeon_state->caps & ATOM_PPLIB_DISALLOW_ON_DC))
682 smc_state->flags |= PPSMC_SWSTATE_FLAG_DC;
683
684 ret = rv770_convert_power_level_to_smc(rdev,
685 &state->low,
686 &smc_state->levels[0],
687 PPSMC_DISPLAY_WATERMARK_LOW);
688 if (ret)
689 return ret;
690
691 ret = rv770_convert_power_level_to_smc(rdev,
692 &state->medium,
693 &smc_state->levels[1],
694 PPSMC_DISPLAY_WATERMARK_LOW);
695 if (ret)
696 return ret;
697
698 ret = rv770_convert_power_level_to_smc(rdev,
699 &state->high,
700 &smc_state->levels[2],
701 PPSMC_DISPLAY_WATERMARK_HIGH);
702 if (ret)
703 return ret;
704
705 smc_state->levels[0].arbValue = MC_CG_ARB_FREQ_F1;
706 smc_state->levels[1].arbValue = MC_CG_ARB_FREQ_F2;
707 smc_state->levels[2].arbValue = MC_CG_ARB_FREQ_F3;
708
709 smc_state->levels[0].seqValue = rv770_get_seq_value(rdev,
710 &state->low);
711 smc_state->levels[1].seqValue = rv770_get_seq_value(rdev,
712 &state->medium);
713 smc_state->levels[2].seqValue = rv770_get_seq_value(rdev,
714 &state->high);
715
716 rv770_populate_smc_sp(rdev, radeon_state, smc_state);
717
718 return rv770_populate_smc_t(rdev, radeon_state, smc_state);
719
720 }
721
722 u32 rv770_calculate_memory_refresh_rate(struct radeon_device *rdev,
723 u32 engine_clock)
724 {
725 u32 dram_rows;
726 u32 dram_refresh_rate;
727 u32 mc_arb_rfsh_rate;
728 u32 tmp;
729
730 tmp = (RREG32(MC_ARB_RAMCFG) & NOOFROWS_MASK) >> NOOFROWS_SHIFT;
731 dram_rows = 1 << (tmp + 10);
732 tmp = RREG32(MC_SEQ_MISC0) & 3;
733 dram_refresh_rate = 1 << (tmp + 3);
734 mc_arb_rfsh_rate = ((engine_clock * 10) * dram_refresh_rate / dram_rows - 32) / 64;
735
736 return mc_arb_rfsh_rate;
737 }
738
739 static void rv770_program_memory_timing_parameters(struct radeon_device *rdev,
740 struct radeon_ps *radeon_state)
741 {
742 struct rv7xx_ps *state = rv770_get_ps(radeon_state);
743 struct rv7xx_power_info *pi = rv770_get_pi(rdev);
744 u32 sqm_ratio;
745 u32 arb_refresh_rate;
746 u32 high_clock;
747
748 if (state->high.sclk < (state->low.sclk * 0xFF / 0x40))
749 high_clock = state->high.sclk;
750 else
751 high_clock = (state->low.sclk * 0xFF / 0x40);
752
753 radeon_atom_set_engine_dram_timings(rdev, high_clock,
754 state->high.mclk);
755
756 sqm_ratio =
757 STATE0(64 * high_clock / pi->boot_sclk) |
758 STATE1(64 * high_clock / state->low.sclk) |
759 STATE2(64 * high_clock / state->medium.sclk) |
760 STATE3(64 * high_clock / state->high.sclk);
761 WREG32(MC_ARB_SQM_RATIO, sqm_ratio);
762
763 arb_refresh_rate =
764 POWERMODE0(rv770_calculate_memory_refresh_rate(rdev, pi->boot_sclk)) |
765 POWERMODE1(rv770_calculate_memory_refresh_rate(rdev, state->low.sclk)) |
766 POWERMODE2(rv770_calculate_memory_refresh_rate(rdev, state->medium.sclk)) |
767 POWERMODE3(rv770_calculate_memory_refresh_rate(rdev, state->high.sclk));
768 WREG32(MC_ARB_RFSH_RATE, arb_refresh_rate);
769 }
770
771 void rv770_enable_backbias(struct radeon_device *rdev,
772 bool enable)
773 {
774 if (enable)
775 WREG32_P(GENERAL_PWRMGT, BACKBIAS_PAD_EN, ~BACKBIAS_PAD_EN);
776 else
777 WREG32_P(GENERAL_PWRMGT, 0, ~(BACKBIAS_VALUE | BACKBIAS_PAD_EN));
778 }
779
780 static void rv770_enable_spread_spectrum(struct radeon_device *rdev,
781 bool enable)
782 {
783 struct rv7xx_power_info *pi = rv770_get_pi(rdev);
784
785 if (enable) {
786 if (pi->sclk_ss)
787 WREG32_P(GENERAL_PWRMGT, DYN_SPREAD_SPECTRUM_EN, ~DYN_SPREAD_SPECTRUM_EN);
788
789 if (pi->mclk_ss) {
790 if (rdev->family == CHIP_RV740)
791 rv740_enable_mclk_spread_spectrum(rdev, true);
792 }
793 } else {
794 WREG32_P(CG_SPLL_SPREAD_SPECTRUM, 0, ~SSEN);
795
796 WREG32_P(GENERAL_PWRMGT, 0, ~DYN_SPREAD_SPECTRUM_EN);
797
798 WREG32_P(CG_MPLL_SPREAD_SPECTRUM, 0, ~SSEN);
799
800 if (rdev->family == CHIP_RV740)
801 rv740_enable_mclk_spread_spectrum(rdev, false);
802 }
803 }
804
805 static void rv770_program_mpll_timing_parameters(struct radeon_device *rdev)
806 {
807 struct rv7xx_power_info *pi = rv770_get_pi(rdev);
808
809 if ((rdev->family == CHIP_RV770) && !pi->mem_gddr5) {
810 WREG32(MPLL_TIME,
811 (MPLL_LOCK_TIME(R600_MPLLLOCKTIME_DFLT * pi->ref_div) |
812 MPLL_RESET_TIME(R600_MPLLRESETTIME_DFLT)));
813 }
814 }
815
816 void rv770_setup_bsp(struct radeon_device *rdev)
817 {
818 struct rv7xx_power_info *pi = rv770_get_pi(rdev);
819 u32 xclk = radeon_get_xclk(rdev);
820
821 r600_calculate_u_and_p(pi->asi,
822 xclk,
823 16,
824 &pi->bsp,
825 &pi->bsu);
826
827 r600_calculate_u_and_p(pi->pasi,
828 xclk,
829 16,
830 &pi->pbsp,
831 &pi->pbsu);
832
833 pi->dsp = BSP(pi->bsp) | BSU(pi->bsu);
834 pi->psp = BSP(pi->pbsp) | BSU(pi->pbsu);
835
836 WREG32(CG_BSP, pi->dsp);
837
838 }
839
840 void rv770_program_git(struct radeon_device *rdev)
841 {
842 WREG32_P(CG_GIT, CG_GICST(R600_GICST_DFLT), ~CG_GICST_MASK);
843 }
844
845 void rv770_program_tp(struct radeon_device *rdev)
846 {
847 int i;
848 enum r600_td td = R600_TD_DFLT;
849
850 for (i = 0; i < R600_PM_NUMBER_OF_TC; i++)
851 WREG32(CG_FFCT_0 + (i * 4), (UTC_0(r600_utc[i]) | DTC_0(r600_dtc[i])));
852
853 if (td == R600_TD_AUTO)
854 WREG32_P(SCLK_PWRMGT_CNTL, 0, ~FIR_FORCE_TREND_SEL);
855 else
856 WREG32_P(SCLK_PWRMGT_CNTL, FIR_FORCE_TREND_SEL, ~FIR_FORCE_TREND_SEL);
857 if (td == R600_TD_UP)
858 WREG32_P(SCLK_PWRMGT_CNTL, 0, ~FIR_TREND_MODE);
859 if (td == R600_TD_DOWN)
860 WREG32_P(SCLK_PWRMGT_CNTL, FIR_TREND_MODE, ~FIR_TREND_MODE);
861 }
862
863 void rv770_program_tpp(struct radeon_device *rdev)
864 {
865 WREG32(CG_TPC, R600_TPC_DFLT);
866 }
867
868 void rv770_program_sstp(struct radeon_device *rdev)
869 {
870 WREG32(CG_SSP, (SSTU(R600_SSTU_DFLT) | SST(R600_SST_DFLT)));
871 }
872
873 void rv770_program_engine_speed_parameters(struct radeon_device *rdev)
874 {
875 WREG32_P(SPLL_CNTL_MODE, SPLL_DIV_SYNC, ~SPLL_DIV_SYNC);
876 }
877
878 static void rv770_enable_display_gap(struct radeon_device *rdev)
879 {
880 u32 tmp = RREG32(CG_DISPLAY_GAP_CNTL);
881
882 tmp &= ~(DISP1_GAP_MCHG_MASK | DISP2_GAP_MCHG_MASK);
883 tmp |= (DISP1_GAP_MCHG(R600_PM_DISPLAY_GAP_IGNORE) |
884 DISP2_GAP_MCHG(R600_PM_DISPLAY_GAP_IGNORE));
885 WREG32(CG_DISPLAY_GAP_CNTL, tmp);
886 }
887
888 void rv770_program_vc(struct radeon_device *rdev)
889 {
890 struct rv7xx_power_info *pi = rv770_get_pi(rdev);
891
892 WREG32(CG_FTV, pi->vrc);
893 }
894
895 void rv770_clear_vc(struct radeon_device *rdev)
896 {
897 WREG32(CG_FTV, 0);
898 }
899
900 int rv770_upload_firmware(struct radeon_device *rdev)
901 {
902 struct rv7xx_power_info *pi = rv770_get_pi(rdev);
903 int ret;
904
905 rv770_reset_smc(rdev);
906 rv770_stop_smc_clock(rdev);
907
908 ret = rv770_load_smc_ucode(rdev, pi->sram_end);
909 if (ret)
910 return ret;
911
912 return 0;
913 }
914
915 static int rv770_populate_smc_acpi_state(struct radeon_device *rdev,
916 RV770_SMC_STATETABLE *table)
917 {
918 struct rv7xx_power_info *pi = rv770_get_pi(rdev);
919
920 u32 mpll_ad_func_cntl =
921 pi->clk_regs.rv770.mpll_ad_func_cntl;
922 u32 mpll_ad_func_cntl_2 =
923 pi->clk_regs.rv770.mpll_ad_func_cntl_2;
924 u32 mpll_dq_func_cntl =
925 pi->clk_regs.rv770.mpll_dq_func_cntl;
926 u32 mpll_dq_func_cntl_2 =
927 pi->clk_regs.rv770.mpll_dq_func_cntl_2;
928 u32 spll_func_cntl =
929 pi->clk_regs.rv770.cg_spll_func_cntl;
930 u32 spll_func_cntl_2 =
931 pi->clk_regs.rv770.cg_spll_func_cntl_2;
932 u32 spll_func_cntl_3 =
933 pi->clk_regs.rv770.cg_spll_func_cntl_3;
934 u32 mclk_pwrmgt_cntl;
935 u32 dll_cntl;
936
937 table->ACPIState = table->initialState;
938
939 table->ACPIState.flags &= ~PPSMC_SWSTATE_FLAG_DC;
940
941 if (pi->acpi_vddc) {
942 rv770_populate_vddc_value(rdev, pi->acpi_vddc,
943 &table->ACPIState.levels[0].vddc);
944 if (pi->pcie_gen2) {
945 if (pi->acpi_pcie_gen2)
946 table->ACPIState.levels[0].gen2PCIE = 1;
947 else
948 table->ACPIState.levels[0].gen2PCIE = 0;
949 } else
950 table->ACPIState.levels[0].gen2PCIE = 0;
951 if (pi->acpi_pcie_gen2)
952 table->ACPIState.levels[0].gen2XSP = 1;
953 else
954 table->ACPIState.levels[0].gen2XSP = 0;
955 } else {
956 rv770_populate_vddc_value(rdev, pi->min_vddc_in_table,
957 &table->ACPIState.levels[0].vddc);
958 table->ACPIState.levels[0].gen2PCIE = 0;
959 }
960
961
962 mpll_ad_func_cntl_2 |= BIAS_GEN_PDNB | RESET_EN;
963
964 mpll_dq_func_cntl_2 |= BIAS_GEN_PDNB | RESET_EN;
965
966 mclk_pwrmgt_cntl = (MRDCKA0_RESET |
967 MRDCKA1_RESET |
968 MRDCKB0_RESET |
969 MRDCKB1_RESET |
970 MRDCKC0_RESET |
971 MRDCKC1_RESET |
972 MRDCKD0_RESET |
973 MRDCKD1_RESET);
974
975 dll_cntl = 0xff000000;
976
977 spll_func_cntl |= SPLL_RESET | SPLL_SLEEP | SPLL_BYPASS_EN;
978
979 spll_func_cntl_2 &= ~SCLK_MUX_SEL_MASK;
980 spll_func_cntl_2 |= SCLK_MUX_SEL(4);
981
982 table->ACPIState.levels[0].mclk.mclk770.vMPLL_AD_FUNC_CNTL = cpu_to_be32(mpll_ad_func_cntl);
983 table->ACPIState.levels[0].mclk.mclk770.vMPLL_AD_FUNC_CNTL_2 = cpu_to_be32(mpll_ad_func_cntl_2);
984 table->ACPIState.levels[0].mclk.mclk770.vMPLL_DQ_FUNC_CNTL = cpu_to_be32(mpll_dq_func_cntl);
985 table->ACPIState.levels[0].mclk.mclk770.vMPLL_DQ_FUNC_CNTL_2 = cpu_to_be32(mpll_dq_func_cntl_2);
986
987 table->ACPIState.levels[0].mclk.mclk770.vMCLK_PWRMGT_CNTL = cpu_to_be32(mclk_pwrmgt_cntl);
988 table->ACPIState.levels[0].mclk.mclk770.vDLL_CNTL = cpu_to_be32(dll_cntl);
989
990 table->ACPIState.levels[0].mclk.mclk770.mclk_value = 0;
991
992 table->ACPIState.levels[0].sclk.vCG_SPLL_FUNC_CNTL = cpu_to_be32(spll_func_cntl);
993 table->ACPIState.levels[0].sclk.vCG_SPLL_FUNC_CNTL_2 = cpu_to_be32(spll_func_cntl_2);
994 table->ACPIState.levels[0].sclk.vCG_SPLL_FUNC_CNTL_3 = cpu_to_be32(spll_func_cntl_3);
995
996 table->ACPIState.levels[0].sclk.sclk_value = 0;
997
998 rv770_populate_mvdd_value(rdev, 0, &table->ACPIState.levels[0].mvdd);
999
1000 table->ACPIState.levels[1] = table->ACPIState.levels[0];
1001 table->ACPIState.levels[2] = table->ACPIState.levels[0];
1002
1003 return 0;
1004 }
1005
1006 int rv770_populate_initial_mvdd_value(struct radeon_device *rdev,
1007 RV770_SMC_VOLTAGE_VALUE *voltage)
1008 {
1009 struct rv7xx_power_info *pi = rv770_get_pi(rdev);
1010
1011 if ((pi->s0_vid_lower_smio_cntl & pi->mvdd_mask_low) ==
1012 (pi->mvdd_low_smio[MVDD_LOW_INDEX] & pi->mvdd_mask_low) ) {
1013 voltage->index = MVDD_LOW_INDEX;
1014 voltage->value = cpu_to_be16(MVDD_LOW_VALUE);
1015 } else {
1016 voltage->index = MVDD_HIGH_INDEX;
1017 voltage->value = cpu_to_be16(MVDD_HIGH_VALUE);
1018 }
1019
1020 return 0;
1021 }
1022
1023 static int rv770_populate_smc_initial_state(struct radeon_device *rdev,
1024 struct radeon_ps *radeon_state,
1025 RV770_SMC_STATETABLE *table)
1026 {
1027 struct rv7xx_ps *initial_state = rv770_get_ps(radeon_state);
1028 struct rv7xx_power_info *pi = rv770_get_pi(rdev);
1029 u32 a_t;
1030
1031 table->initialState.levels[0].mclk.mclk770.vMPLL_AD_FUNC_CNTL =
1032 cpu_to_be32(pi->clk_regs.rv770.mpll_ad_func_cntl);
1033 table->initialState.levels[0].mclk.mclk770.vMPLL_AD_FUNC_CNTL_2 =
1034 cpu_to_be32(pi->clk_regs.rv770.mpll_ad_func_cntl_2);
1035 table->initialState.levels[0].mclk.mclk770.vMPLL_DQ_FUNC_CNTL =
1036 cpu_to_be32(pi->clk_regs.rv770.mpll_dq_func_cntl);
1037 table->initialState.levels[0].mclk.mclk770.vMPLL_DQ_FUNC_CNTL_2 =
1038 cpu_to_be32(pi->clk_regs.rv770.mpll_dq_func_cntl_2);
1039 table->initialState.levels[0].mclk.mclk770.vMCLK_PWRMGT_CNTL =
1040 cpu_to_be32(pi->clk_regs.rv770.mclk_pwrmgt_cntl);
1041 table->initialState.levels[0].mclk.mclk770.vDLL_CNTL =
1042 cpu_to_be32(pi->clk_regs.rv770.dll_cntl);
1043
1044 table->initialState.levels[0].mclk.mclk770.vMPLL_SS =
1045 cpu_to_be32(pi->clk_regs.rv770.mpll_ss1);
1046 table->initialState.levels[0].mclk.mclk770.vMPLL_SS2 =
1047 cpu_to_be32(pi->clk_regs.rv770.mpll_ss2);
1048
1049 table->initialState.levels[0].mclk.mclk770.mclk_value =
1050 cpu_to_be32(initial_state->low.mclk);
1051
1052 table->initialState.levels[0].sclk.vCG_SPLL_FUNC_CNTL =
1053 cpu_to_be32(pi->clk_regs.rv770.cg_spll_func_cntl);
1054 table->initialState.levels[0].sclk.vCG_SPLL_FUNC_CNTL_2 =
1055 cpu_to_be32(pi->clk_regs.rv770.cg_spll_func_cntl_2);
1056 table->initialState.levels[0].sclk.vCG_SPLL_FUNC_CNTL_3 =
1057 cpu_to_be32(pi->clk_regs.rv770.cg_spll_func_cntl_3);
1058 table->initialState.levels[0].sclk.vCG_SPLL_SPREAD_SPECTRUM =
1059 cpu_to_be32(pi->clk_regs.rv770.cg_spll_spread_spectrum);
1060 table->initialState.levels[0].sclk.vCG_SPLL_SPREAD_SPECTRUM_2 =
1061 cpu_to_be32(pi->clk_regs.rv770.cg_spll_spread_spectrum_2);
1062
1063 table->initialState.levels[0].sclk.sclk_value =
1064 cpu_to_be32(initial_state->low.sclk);
1065
1066 table->initialState.levels[0].arbValue = MC_CG_ARB_FREQ_F0;
1067
1068 table->initialState.levels[0].seqValue =
1069 rv770_get_seq_value(rdev, &initial_state->low);
1070
1071 rv770_populate_vddc_value(rdev,
1072 initial_state->low.vddc,
1073 &table->initialState.levels[0].vddc);
1074 rv770_populate_initial_mvdd_value(rdev,
1075 &table->initialState.levels[0].mvdd);
1076
1077 a_t = CG_R(0xffff) | CG_L(0);
1078 table->initialState.levels[0].aT = cpu_to_be32(a_t);
1079
1080 table->initialState.levels[0].bSP = cpu_to_be32(pi->dsp);
1081
1082 if (pi->boot_in_gen2)
1083 table->initialState.levels[0].gen2PCIE = 1;
1084 else
1085 table->initialState.levels[0].gen2PCIE = 0;
1086 if (initial_state->low.flags & ATOM_PPLIB_R600_FLAGS_PCIEGEN2)
1087 table->initialState.levels[0].gen2XSP = 1;
1088 else
1089 table->initialState.levels[0].gen2XSP = 0;
1090
1091 if (rdev->family == CHIP_RV740) {
1092 if (pi->mem_gddr5) {
1093 if (initial_state->low.mclk <= pi->mclk_strobe_mode_threshold)
1094 table->initialState.levels[0].strobeMode =
1095 rv740_get_mclk_frequency_ratio(initial_state->low.mclk) | 0x10;
1096 else
1097 table->initialState.levels[0].strobeMode = 0;
1098
1099 if (initial_state->low.mclk >= pi->mclk_edc_enable_threshold)
1100 table->initialState.levels[0].mcFlags = SMC_MC_EDC_RD_FLAG | SMC_MC_EDC_WR_FLAG;
1101 else
1102 table->initialState.levels[0].mcFlags = 0;
1103 }
1104 }
1105
1106 table->initialState.levels[1] = table->initialState.levels[0];
1107 table->initialState.levels[2] = table->initialState.levels[0];
1108
1109 table->initialState.flags |= PPSMC_SWSTATE_FLAG_DC;
1110
1111 return 0;
1112 }
1113
1114 static int rv770_populate_smc_vddc_table(struct radeon_device *rdev,
1115 RV770_SMC_STATETABLE *table)
1116 {
1117 struct rv7xx_power_info *pi = rv770_get_pi(rdev);
1118 int i;
1119
1120 for (i = 0; i < pi->valid_vddc_entries; i++) {
1121 table->highSMIO[pi->vddc_table[i].vddc_index] =
1122 pi->vddc_table[i].high_smio;
1123 table->lowSMIO[pi->vddc_table[i].vddc_index] =
1124 cpu_to_be32(pi->vddc_table[i].low_smio);
1125 }
1126
1127 table->voltageMaskTable.highMask[RV770_SMC_VOLTAGEMASK_VDDC] = 0;
1128 table->voltageMaskTable.lowMask[RV770_SMC_VOLTAGEMASK_VDDC] =
1129 cpu_to_be32(pi->vddc_mask_low);
1130
1131 for (i = 0;
1132 ((i < pi->valid_vddc_entries) &&
1133 (pi->max_vddc_in_table >
1134 pi->vddc_table[i].vddc));
1135 i++);
1136
1137 table->maxVDDCIndexInPPTable =
1138 pi->vddc_table[i].vddc_index;
1139
1140 return 0;
1141 }
1142
1143 static int rv770_populate_smc_mvdd_table(struct radeon_device *rdev,
1144 RV770_SMC_STATETABLE *table)
1145 {
1146 struct rv7xx_power_info *pi = rv770_get_pi(rdev);
1147
1148 if (pi->mvdd_control) {
1149 table->lowSMIO[MVDD_HIGH_INDEX] |=
1150 cpu_to_be32(pi->mvdd_low_smio[MVDD_HIGH_INDEX]);
1151 table->lowSMIO[MVDD_LOW_INDEX] |=
1152 cpu_to_be32(pi->mvdd_low_smio[MVDD_LOW_INDEX]);
1153
1154 table->voltageMaskTable.highMask[RV770_SMC_VOLTAGEMASK_MVDD] = 0;
1155 table->voltageMaskTable.lowMask[RV770_SMC_VOLTAGEMASK_MVDD] =
1156 cpu_to_be32(pi->mvdd_mask_low);
1157 }
1158
1159 return 0;
1160 }
1161
1162 static int rv770_init_smc_table(struct radeon_device *rdev,
1163 struct radeon_ps *radeon_boot_state)
1164 {
1165 struct rv7xx_power_info *pi = rv770_get_pi(rdev);
1166 struct rv7xx_ps *boot_state = rv770_get_ps(radeon_boot_state);
1167 RV770_SMC_STATETABLE *table = &pi->smc_statetable;
1168 int ret;
1169
1170 memset(table, 0, sizeof(RV770_SMC_STATETABLE));
1171
1172 pi->boot_sclk = boot_state->low.sclk;
1173
1174 rv770_populate_smc_vddc_table(rdev, table);
1175 rv770_populate_smc_mvdd_table(rdev, table);
1176
1177 switch (rdev->pm.int_thermal_type) {
1178 case THERMAL_TYPE_RV770:
1179 case THERMAL_TYPE_ADT7473_WITH_INTERNAL:
1180 table->thermalProtectType = PPSMC_THERMAL_PROTECT_TYPE_INTERNAL;
1181 break;
1182 case THERMAL_TYPE_NONE:
1183 table->thermalProtectType = PPSMC_THERMAL_PROTECT_TYPE_NONE;
1184 break;
1185 case THERMAL_TYPE_EXTERNAL_GPIO:
1186 default:
1187 table->thermalProtectType = PPSMC_THERMAL_PROTECT_TYPE_EXTERNAL;
1188 break;
1189 }
1190
1191 if (rdev->pm.dpm.platform_caps & ATOM_PP_PLATFORM_CAP_HARDWAREDC) {
1192 table->systemFlags |= PPSMC_SYSTEMFLAG_GPIO_DC;
1193
1194 if (rdev->pm.dpm.platform_caps & ATOM_PP_PLATFORM_CAP_DONT_WAIT_FOR_VBLANK_ON_ALERT)
1195 table->extraFlags |= PPSMC_EXTRAFLAGS_AC2DC_DONT_WAIT_FOR_VBLANK;
1196
1197 if (rdev->pm.dpm.platform_caps & ATOM_PP_PLATFORM_CAP_GOTO_BOOT_ON_ALERT)
1198 table->extraFlags |= PPSMC_EXTRAFLAGS_AC2DC_ACTION_GOTOINITIALSTATE;
1199 }
1200
1201 if (rdev->pm.dpm.platform_caps & ATOM_PP_PLATFORM_CAP_STEPVDDC)
1202 table->systemFlags |= PPSMC_SYSTEMFLAG_STEPVDDC;
1203
1204 if (pi->mem_gddr5)
1205 table->systemFlags |= PPSMC_SYSTEMFLAG_GDDR5;
1206
1207 if ((rdev->family == CHIP_RV730) || (rdev->family == CHIP_RV710))
1208 ret = rv730_populate_smc_initial_state(rdev, radeon_boot_state, table);
1209 else
1210 ret = rv770_populate_smc_initial_state(rdev, radeon_boot_state, table);
1211 if (ret)
1212 return ret;
1213
1214 if (rdev->family == CHIP_RV740)
1215 ret = rv740_populate_smc_acpi_state(rdev, table);
1216 else if ((rdev->family == CHIP_RV730) || (rdev->family == CHIP_RV710))
1217 ret = rv730_populate_smc_acpi_state(rdev, table);
1218 else
1219 ret = rv770_populate_smc_acpi_state(rdev, table);
1220 if (ret)
1221 return ret;
1222
1223 table->driverState = table->initialState;
1224
1225 return rv770_copy_bytes_to_smc(rdev,
1226 pi->state_table_start,
1227 (const u8 *)table,
1228 sizeof(RV770_SMC_STATETABLE),
1229 pi->sram_end);
1230 }
1231
1232 static int rv770_construct_vddc_table(struct radeon_device *rdev)
1233 {
1234 struct rv7xx_power_info *pi = rv770_get_pi(rdev);
1235 u16 min, max, step;
1236 u32 steps = 0;
1237 u8 vddc_index = 0;
1238 u32 i;
1239
1240 radeon_atom_get_min_voltage(rdev, SET_VOLTAGE_TYPE_ASIC_VDDC, &min);
1241 radeon_atom_get_max_voltage(rdev, SET_VOLTAGE_TYPE_ASIC_VDDC, &max);
1242 radeon_atom_get_voltage_step(rdev, SET_VOLTAGE_TYPE_ASIC_VDDC, &step);
1243
1244 steps = (max - min) / step + 1;
1245
1246 if (steps > MAX_NO_VREG_STEPS)
1247 return -EINVAL;
1248
1249 for (i = 0; i < steps; i++) {
1250 u32 gpio_pins, gpio_mask;
1251
1252 pi->vddc_table[i].vddc = (u16)(min + i * step);
1253 radeon_atom_get_voltage_gpio_settings(rdev,
1254 pi->vddc_table[i].vddc,
1255 SET_VOLTAGE_TYPE_ASIC_VDDC,
1256 &gpio_pins, &gpio_mask);
1257 pi->vddc_table[i].low_smio = gpio_pins & gpio_mask;
1258 pi->vddc_table[i].high_smio = 0;
1259 pi->vddc_mask_low = gpio_mask;
1260 if (i > 0) {
1261 if ((pi->vddc_table[i].low_smio !=
1262 pi->vddc_table[i - 1].low_smio ) ||
1263 (pi->vddc_table[i].high_smio !=
1264 pi->vddc_table[i - 1].high_smio))
1265 vddc_index++;
1266 }
1267 pi->vddc_table[i].vddc_index = vddc_index;
1268 }
1269
1270 pi->valid_vddc_entries = (u8)steps;
1271
1272 return 0;
1273 }
1274
1275 static u32 rv770_get_mclk_split_point(struct atom_memory_info *memory_info)
1276 {
1277 if (memory_info->mem_type == MEM_TYPE_GDDR3)
1278 return 30000;
1279
1280 return 0;
1281 }
1282
1283 static int rv770_get_mvdd_pin_configuration(struct radeon_device *rdev)
1284 {
1285 struct rv7xx_power_info *pi = rv770_get_pi(rdev);
1286 u32 gpio_pins, gpio_mask;
1287
1288 radeon_atom_get_voltage_gpio_settings(rdev,
1289 MVDD_HIGH_VALUE, SET_VOLTAGE_TYPE_ASIC_MVDDC,
1290 &gpio_pins, &gpio_mask);
1291 pi->mvdd_mask_low = gpio_mask;
1292 pi->mvdd_low_smio[MVDD_HIGH_INDEX] =
1293 gpio_pins & gpio_mask;
1294
1295 radeon_atom_get_voltage_gpio_settings(rdev,
1296 MVDD_LOW_VALUE, SET_VOLTAGE_TYPE_ASIC_MVDDC,
1297 &gpio_pins, &gpio_mask);
1298 pi->mvdd_low_smio[MVDD_LOW_INDEX] =
1299 gpio_pins & gpio_mask;
1300
1301 return 0;
1302 }
1303
1304 u8 rv770_get_memory_module_index(struct radeon_device *rdev)
1305 {
1306 return (u8) ((RREG32(BIOS_SCRATCH_4) >> 16) & 0xff);
1307 }
1308
1309 static int rv770_get_mvdd_configuration(struct radeon_device *rdev)
1310 {
1311 struct rv7xx_power_info *pi = rv770_get_pi(rdev);
1312 u8 memory_module_index;
1313 struct atom_memory_info memory_info;
1314
1315 memory_module_index = rv770_get_memory_module_index(rdev);
1316
1317 if (radeon_atom_get_memory_info(rdev, memory_module_index, &memory_info)) {
1318 pi->mvdd_control = false;
1319 return 0;
1320 }
1321
1322 pi->mvdd_split_frequency =
1323 rv770_get_mclk_split_point(&memory_info);
1324
1325 if (pi->mvdd_split_frequency == 0) {
1326 pi->mvdd_control = false;
1327 return 0;
1328 }
1329
1330 return rv770_get_mvdd_pin_configuration(rdev);
1331 }
1332
1333 void rv770_enable_voltage_control(struct radeon_device *rdev,
1334 bool enable)
1335 {
1336 if (enable)
1337 WREG32_P(GENERAL_PWRMGT, VOLT_PWRMGT_EN, ~VOLT_PWRMGT_EN);
1338 else
1339 WREG32_P(GENERAL_PWRMGT, 0, ~VOLT_PWRMGT_EN);
1340 }
1341
1342 static void rv770_program_display_gap(struct radeon_device *rdev)
1343 {
1344 u32 tmp = RREG32(CG_DISPLAY_GAP_CNTL);
1345
1346 tmp &= ~(DISP1_GAP_MCHG_MASK | DISP2_GAP_MCHG_MASK);
1347 if (rdev->pm.dpm.new_active_crtcs & 1) {
1348 tmp |= DISP1_GAP_MCHG(R600_PM_DISPLAY_GAP_VBLANK);
1349 tmp |= DISP2_GAP_MCHG(R600_PM_DISPLAY_GAP_IGNORE);
1350 } else if (rdev->pm.dpm.new_active_crtcs & 2) {
1351 tmp |= DISP1_GAP_MCHG(R600_PM_DISPLAY_GAP_IGNORE);
1352 tmp |= DISP2_GAP_MCHG(R600_PM_DISPLAY_GAP_VBLANK);
1353 } else {
1354 tmp |= DISP1_GAP_MCHG(R600_PM_DISPLAY_GAP_IGNORE);
1355 tmp |= DISP2_GAP_MCHG(R600_PM_DISPLAY_GAP_IGNORE);
1356 }
1357 WREG32(CG_DISPLAY_GAP_CNTL, tmp);
1358 }
1359
1360 static void rv770_enable_dynamic_pcie_gen2(struct radeon_device *rdev,
1361 bool enable)
1362 {
1363 rv770_enable_bif_dynamic_pcie_gen2(rdev, enable);
1364
1365 if (enable)
1366 WREG32_P(GENERAL_PWRMGT, ENABLE_GEN2PCIE, ~ENABLE_GEN2PCIE);
1367 else
1368 WREG32_P(GENERAL_PWRMGT, 0, ~ENABLE_GEN2PCIE);
1369 }
1370
1371 static void r7xx_program_memory_timing_parameters(struct radeon_device *rdev,
1372 struct radeon_ps *radeon_new_state)
1373 {
1374 if ((rdev->family == CHIP_RV730) ||
1375 (rdev->family == CHIP_RV710) ||
1376 (rdev->family == CHIP_RV740))
1377 rv730_program_memory_timing_parameters(rdev, radeon_new_state);
1378 else
1379 rv770_program_memory_timing_parameters(rdev, radeon_new_state);
1380 }
1381
1382 static int rv770_upload_sw_state(struct radeon_device *rdev,
1383 struct radeon_ps *radeon_new_state)
1384 {
1385 struct rv7xx_power_info *pi = rv770_get_pi(rdev);
1386 u16 address = pi->state_table_start +
1387 offsetof(RV770_SMC_STATETABLE, driverState);
1388 RV770_SMC_SWSTATE state = { 0 };
1389 int ret;
1390
1391 ret = rv770_convert_power_state_to_smc(rdev, radeon_new_state, &state);
1392 if (ret)
1393 return ret;
1394
1395 return rv770_copy_bytes_to_smc(rdev, address, (const u8 *)&state,
1396 sizeof(RV770_SMC_SWSTATE),
1397 pi->sram_end);
1398 }
1399
1400 int rv770_halt_smc(struct radeon_device *rdev)
1401 {
1402 if (rv770_send_msg_to_smc(rdev, PPSMC_MSG_Halt) != PPSMC_Result_OK)
1403 return -EINVAL;
1404
1405 if (rv770_wait_for_smc_inactive(rdev) != PPSMC_Result_OK)
1406 return -EINVAL;
1407
1408 return 0;
1409 }
1410
1411 int rv770_resume_smc(struct radeon_device *rdev)
1412 {
1413 if (rv770_send_msg_to_smc(rdev, PPSMC_MSG_Resume) != PPSMC_Result_OK)
1414 return -EINVAL;
1415 return 0;
1416 }
1417
1418 int rv770_set_sw_state(struct radeon_device *rdev)
1419 {
1420 if (rv770_send_msg_to_smc(rdev, PPSMC_MSG_SwitchToSwState) != PPSMC_Result_OK)
1421 DRM_DEBUG("rv770_set_sw_state failed\n");
1422 return 0;
1423 }
1424
1425 int rv770_set_boot_state(struct radeon_device *rdev)
1426 {
1427 if (rv770_send_msg_to_smc(rdev, PPSMC_MSG_SwitchToInitialState) != PPSMC_Result_OK)
1428 return -EINVAL;
1429 return 0;
1430 }
1431
1432 void rv770_set_uvd_clock_before_set_eng_clock(struct radeon_device *rdev,
1433 struct radeon_ps *new_ps,
1434 struct radeon_ps *old_ps)
1435 {
1436 struct rv7xx_ps *new_state = rv770_get_ps(new_ps);
1437 struct rv7xx_ps *current_state = rv770_get_ps(old_ps);
1438
1439 if ((new_ps->vclk == old_ps->vclk) &&
1440 (new_ps->dclk == old_ps->dclk))
1441 return;
1442
1443 if (new_state->high.sclk >= current_state->high.sclk)
1444 return;
1445
1446 radeon_set_uvd_clocks(rdev, new_ps->vclk, new_ps->dclk);
1447 }
1448
1449 void rv770_set_uvd_clock_after_set_eng_clock(struct radeon_device *rdev,
1450 struct radeon_ps *new_ps,
1451 struct radeon_ps *old_ps)
1452 {
1453 struct rv7xx_ps *new_state = rv770_get_ps(new_ps);
1454 struct rv7xx_ps *current_state = rv770_get_ps(old_ps);
1455
1456 if ((new_ps->vclk == old_ps->vclk) &&
1457 (new_ps->dclk == old_ps->dclk))
1458 return;
1459
1460 if (new_state->high.sclk < current_state->high.sclk)
1461 return;
1462
1463 radeon_set_uvd_clocks(rdev, new_ps->vclk, new_ps->dclk);
1464 }
1465
1466 int rv770_restrict_performance_levels_before_switch(struct radeon_device *rdev)
1467 {
1468 if (rv770_send_msg_to_smc(rdev, (PPSMC_Msg)(PPSMC_MSG_NoForcedLevel)) != PPSMC_Result_OK)
1469 return -EINVAL;
1470
1471 if (rv770_send_msg_to_smc(rdev, (PPSMC_Msg)(PPSMC_MSG_TwoLevelsDisabled)) != PPSMC_Result_OK)
1472 return -EINVAL;
1473
1474 return 0;
1475 }
1476
1477 int rv770_dpm_force_performance_level(struct radeon_device *rdev,
1478 enum radeon_dpm_forced_level level)
1479 {
1480 PPSMC_Msg msg;
1481
1482 if (level == RADEON_DPM_FORCED_LEVEL_HIGH) {
1483 if (rv770_send_msg_to_smc(rdev, PPSMC_MSG_ZeroLevelsDisabled) != PPSMC_Result_OK)
1484 return -EINVAL;
1485 msg = PPSMC_MSG_ForceHigh;
1486 } else if (level == RADEON_DPM_FORCED_LEVEL_LOW) {
1487 if (rv770_send_msg_to_smc(rdev, PPSMC_MSG_NoForcedLevel) != PPSMC_Result_OK)
1488 return -EINVAL;
1489 msg = (PPSMC_Msg)(PPSMC_MSG_TwoLevelsDisabled);
1490 } else {
1491 if (rv770_send_msg_to_smc(rdev, PPSMC_MSG_NoForcedLevel) != PPSMC_Result_OK)
1492 return -EINVAL;
1493 msg = (PPSMC_Msg)(PPSMC_MSG_ZeroLevelsDisabled);
1494 }
1495
1496 if (rv770_send_msg_to_smc(rdev, msg) != PPSMC_Result_OK)
1497 return -EINVAL;
1498
1499 rdev->pm.dpm.forced_level = level;
1500
1501 return 0;
1502 }
1503
1504 void r7xx_start_smc(struct radeon_device *rdev)
1505 {
1506 rv770_start_smc(rdev);
1507 rv770_start_smc_clock(rdev);
1508 }
1509
1510
1511 void r7xx_stop_smc(struct radeon_device *rdev)
1512 {
1513 rv770_reset_smc(rdev);
1514 rv770_stop_smc_clock(rdev);
1515 }
1516
1517 static void rv770_read_clock_registers(struct radeon_device *rdev)
1518 {
1519 struct rv7xx_power_info *pi = rv770_get_pi(rdev);
1520
1521 pi->clk_regs.rv770.cg_spll_func_cntl =
1522 RREG32(CG_SPLL_FUNC_CNTL);
1523 pi->clk_regs.rv770.cg_spll_func_cntl_2 =
1524 RREG32(CG_SPLL_FUNC_CNTL_2);
1525 pi->clk_regs.rv770.cg_spll_func_cntl_3 =
1526 RREG32(CG_SPLL_FUNC_CNTL_3);
1527 pi->clk_regs.rv770.cg_spll_spread_spectrum =
1528 RREG32(CG_SPLL_SPREAD_SPECTRUM);
1529 pi->clk_regs.rv770.cg_spll_spread_spectrum_2 =
1530 RREG32(CG_SPLL_SPREAD_SPECTRUM_2);
1531 pi->clk_regs.rv770.mpll_ad_func_cntl =
1532 RREG32(MPLL_AD_FUNC_CNTL);
1533 pi->clk_regs.rv770.mpll_ad_func_cntl_2 =
1534 RREG32(MPLL_AD_FUNC_CNTL_2);
1535 pi->clk_regs.rv770.mpll_dq_func_cntl =
1536 RREG32(MPLL_DQ_FUNC_CNTL);
1537 pi->clk_regs.rv770.mpll_dq_func_cntl_2 =
1538 RREG32(MPLL_DQ_FUNC_CNTL_2);
1539 pi->clk_regs.rv770.mclk_pwrmgt_cntl =
1540 RREG32(MCLK_PWRMGT_CNTL);
1541 pi->clk_regs.rv770.dll_cntl = RREG32(DLL_CNTL);
1542 }
1543
1544 static void r7xx_read_clock_registers(struct radeon_device *rdev)
1545 {
1546 if (rdev->family == CHIP_RV740)
1547 rv740_read_clock_registers(rdev);
1548 else if ((rdev->family == CHIP_RV730) || (rdev->family == CHIP_RV710))
1549 rv730_read_clock_registers(rdev);
1550 else
1551 rv770_read_clock_registers(rdev);
1552 }
1553
1554 void rv770_read_voltage_smio_registers(struct radeon_device *rdev)
1555 {
1556 struct rv7xx_power_info *pi = rv770_get_pi(rdev);
1557
1558 pi->s0_vid_lower_smio_cntl =
1559 RREG32(S0_VID_LOWER_SMIO_CNTL);
1560 }
1561
1562 void rv770_reset_smio_status(struct radeon_device *rdev)
1563 {
1564 struct rv7xx_power_info *pi = rv770_get_pi(rdev);
1565 u32 sw_smio_index, vid_smio_cntl;
1566
1567 sw_smio_index =
1568 (RREG32(GENERAL_PWRMGT) & SW_SMIO_INDEX_MASK) >> SW_SMIO_INDEX_SHIFT;
1569 switch (sw_smio_index) {
1570 case 3:
1571 vid_smio_cntl = RREG32(S3_VID_LOWER_SMIO_CNTL);
1572 break;
1573 case 2:
1574 vid_smio_cntl = RREG32(S2_VID_LOWER_SMIO_CNTL);
1575 break;
1576 case 1:
1577 vid_smio_cntl = RREG32(S1_VID_LOWER_SMIO_CNTL);
1578 break;
1579 case 0:
1580 return;
1581 default:
1582 vid_smio_cntl = pi->s0_vid_lower_smio_cntl;
1583 break;
1584 }
1585
1586 WREG32(S0_VID_LOWER_SMIO_CNTL, vid_smio_cntl);
1587 WREG32_P(GENERAL_PWRMGT, SW_SMIO_INDEX(0), ~SW_SMIO_INDEX_MASK);
1588 }
1589
1590 void rv770_get_memory_type(struct radeon_device *rdev)
1591 {
1592 struct rv7xx_power_info *pi = rv770_get_pi(rdev);
1593 u32 tmp;
1594
1595 tmp = RREG32(MC_SEQ_MISC0);
1596
1597 if (((tmp & MC_SEQ_MISC0_GDDR5_MASK) >> MC_SEQ_MISC0_GDDR5_SHIFT) ==
1598 MC_SEQ_MISC0_GDDR5_VALUE)
1599 pi->mem_gddr5 = true;
1600 else
1601 pi->mem_gddr5 = false;
1602
1603 }
1604
1605 void rv770_get_pcie_gen2_status(struct radeon_device *rdev)
1606 {
1607 struct rv7xx_power_info *pi = rv770_get_pi(rdev);
1608 u32 tmp;
1609
1610 tmp = RREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL);
1611
1612 if ((tmp & LC_OTHER_SIDE_EVER_SENT_GEN2) &&
1613 (tmp & LC_OTHER_SIDE_SUPPORTS_GEN2))
1614 pi->pcie_gen2 = true;
1615 else
1616 pi->pcie_gen2 = false;
1617
1618 if (pi->pcie_gen2) {
1619 if (tmp & LC_CURRENT_DATA_RATE)
1620 pi->boot_in_gen2 = true;
1621 else
1622 pi->boot_in_gen2 = false;
1623 } else
1624 pi->boot_in_gen2 = false;
1625 }
1626
1627 #if 0
1628 static int rv770_enter_ulp_state(struct radeon_device *rdev)
1629 {
1630 struct rv7xx_power_info *pi = rv770_get_pi(rdev);
1631
1632 if (pi->gfx_clock_gating) {
1633 WREG32_P(SCLK_PWRMGT_CNTL, 0, ~DYN_GFX_CLK_OFF_EN);
1634 WREG32_P(SCLK_PWRMGT_CNTL, GFX_CLK_FORCE_ON, ~GFX_CLK_FORCE_ON);
1635 WREG32_P(SCLK_PWRMGT_CNTL, 0, ~GFX_CLK_FORCE_ON);
1636 RREG32(GB_TILING_CONFIG);
1637 }
1638
1639 WREG32_P(SMC_MSG, HOST_SMC_MSG(PPSMC_MSG_SwitchToMinimumPower),
1640 ~HOST_SMC_MSG_MASK);
1641
1642 udelay(7000);
1643
1644 return 0;
1645 }
1646
1647 static int rv770_exit_ulp_state(struct radeon_device *rdev)
1648 {
1649 struct rv7xx_power_info *pi = rv770_get_pi(rdev);
1650 int i;
1651
1652 WREG32_P(SMC_MSG, HOST_SMC_MSG(PPSMC_MSG_ResumeFromMinimumPower),
1653 ~HOST_SMC_MSG_MASK);
1654
1655 udelay(7000);
1656
1657 for (i = 0; i < rdev->usec_timeout; i++) {
1658 if (((RREG32(SMC_MSG) & HOST_SMC_RESP_MASK) >> HOST_SMC_RESP_SHIFT) == 1)
1659 break;
1660 udelay(1000);
1661 }
1662
1663 if (pi->gfx_clock_gating)
1664 WREG32_P(SCLK_PWRMGT_CNTL, DYN_GFX_CLK_OFF_EN, ~DYN_GFX_CLK_OFF_EN);
1665
1666 return 0;
1667 }
1668 #endif
1669
1670 static void rv770_get_mclk_odt_threshold(struct radeon_device *rdev)
1671 {
1672 struct rv7xx_power_info *pi = rv770_get_pi(rdev);
1673 u8 memory_module_index;
1674 struct atom_memory_info memory_info;
1675
1676 pi->mclk_odt_threshold = 0;
1677
1678 if ((rdev->family == CHIP_RV730) || (rdev->family == CHIP_RV710)) {
1679 memory_module_index = rv770_get_memory_module_index(rdev);
1680
1681 if (radeon_atom_get_memory_info(rdev, memory_module_index, &memory_info))
1682 return;
1683
1684 if (memory_info.mem_type == MEM_TYPE_DDR2 ||
1685 memory_info.mem_type == MEM_TYPE_DDR3)
1686 pi->mclk_odt_threshold = 30000;
1687 }
1688 }
1689
1690 void rv770_get_max_vddc(struct radeon_device *rdev)
1691 {
1692 struct rv7xx_power_info *pi = rv770_get_pi(rdev);
1693 u16 vddc;
1694
1695 if (radeon_atom_get_max_vddc(rdev, 0, 0, &vddc))
1696 pi->max_vddc = 0;
1697 else
1698 pi->max_vddc = vddc;
1699 }
1700
1701 void rv770_program_response_times(struct radeon_device *rdev)
1702 {
1703 u32 voltage_response_time, backbias_response_time;
1704 u32 acpi_delay_time, vbi_time_out;
1705 u32 vddc_dly, bb_dly, acpi_dly, vbi_dly;
1706 u32 reference_clock;
1707
1708 voltage_response_time = (u32)rdev->pm.dpm.voltage_response_time;
1709 backbias_response_time = (u32)rdev->pm.dpm.backbias_response_time;
1710
1711 if (voltage_response_time == 0)
1712 voltage_response_time = 1000;
1713
1714 if (backbias_response_time == 0)
1715 backbias_response_time = 1000;
1716
1717 acpi_delay_time = 15000;
1718 vbi_time_out = 100000;
1719
1720 reference_clock = radeon_get_xclk(rdev);
1721
1722 vddc_dly = (voltage_response_time * reference_clock) / 1600;
1723 bb_dly = (backbias_response_time * reference_clock) / 1600;
1724 acpi_dly = (acpi_delay_time * reference_clock) / 1600;
1725 vbi_dly = (vbi_time_out * reference_clock) / 1600;
1726
1727 rv770_write_smc_soft_register(rdev,
1728 RV770_SMC_SOFT_REGISTER_delay_vreg, vddc_dly);
1729 rv770_write_smc_soft_register(rdev,
1730 RV770_SMC_SOFT_REGISTER_delay_bbias, bb_dly);
1731 rv770_write_smc_soft_register(rdev,
1732 RV770_SMC_SOFT_REGISTER_delay_acpi, acpi_dly);
1733 rv770_write_smc_soft_register(rdev,
1734 RV770_SMC_SOFT_REGISTER_mclk_chg_timeout, vbi_dly);
1735 #if 0
1736 /* XXX look up hw revision */
1737 if (WEKIVA_A21)
1738 rv770_write_smc_soft_register(rdev,
1739 RV770_SMC_SOFT_REGISTER_baby_step_timer,
1740 0x10);
1741 #endif
1742 }
1743
1744 static void rv770_program_dcodt_before_state_switch(struct radeon_device *rdev,
1745 struct radeon_ps *radeon_new_state,
1746 struct radeon_ps *radeon_current_state)
1747 {
1748 struct rv7xx_power_info *pi = rv770_get_pi(rdev);
1749 struct rv7xx_ps *new_state = rv770_get_ps(radeon_new_state);
1750 struct rv7xx_ps *current_state = rv770_get_ps(radeon_current_state);
1751 bool current_use_dc = false;
1752 bool new_use_dc = false;
1753
1754 if (pi->mclk_odt_threshold == 0)
1755 return;
1756
1757 if (current_state->high.mclk <= pi->mclk_odt_threshold)
1758 current_use_dc = true;
1759
1760 if (new_state->high.mclk <= pi->mclk_odt_threshold)
1761 new_use_dc = true;
1762
1763 if (current_use_dc == new_use_dc)
1764 return;
1765
1766 if (!current_use_dc && new_use_dc)
1767 return;
1768
1769 if ((rdev->family == CHIP_RV730) || (rdev->family == CHIP_RV710))
1770 rv730_program_dcodt(rdev, new_use_dc);
1771 }
1772
1773 static void rv770_program_dcodt_after_state_switch(struct radeon_device *rdev,
1774 struct radeon_ps *radeon_new_state,
1775 struct radeon_ps *radeon_current_state)
1776 {
1777 struct rv7xx_power_info *pi = rv770_get_pi(rdev);
1778 struct rv7xx_ps *new_state = rv770_get_ps(radeon_new_state);
1779 struct rv7xx_ps *current_state = rv770_get_ps(radeon_current_state);
1780 bool current_use_dc = false;
1781 bool new_use_dc = false;
1782
1783 if (pi->mclk_odt_threshold == 0)
1784 return;
1785
1786 if (current_state->high.mclk <= pi->mclk_odt_threshold)
1787 current_use_dc = true;
1788
1789 if (new_state->high.mclk <= pi->mclk_odt_threshold)
1790 new_use_dc = true;
1791
1792 if (current_use_dc == new_use_dc)
1793 return;
1794
1795 if (current_use_dc && !new_use_dc)
1796 return;
1797
1798 if ((rdev->family == CHIP_RV730) || (rdev->family == CHIP_RV710))
1799 rv730_program_dcodt(rdev, new_use_dc);
1800 }
1801
1802 static void rv770_retrieve_odt_values(struct radeon_device *rdev)
1803 {
1804 struct rv7xx_power_info *pi = rv770_get_pi(rdev);
1805
1806 if (pi->mclk_odt_threshold == 0)
1807 return;
1808
1809 if ((rdev->family == CHIP_RV730) || (rdev->family == CHIP_RV710))
1810 rv730_get_odt_values(rdev);
1811 }
1812
1813 static void rv770_set_dpm_event_sources(struct radeon_device *rdev, u32 sources)
1814 {
1815 struct rv7xx_power_info *pi = rv770_get_pi(rdev);
1816 bool want_thermal_protection;
1817 enum radeon_dpm_event_src dpm_event_src;
1818
1819 switch (sources) {
1820 case 0:
1821 default:
1822 want_thermal_protection = false;
1823 break;
1824 case (1 << RADEON_DPM_AUTO_THROTTLE_SRC_THERMAL):
1825 want_thermal_protection = true;
1826 dpm_event_src = RADEON_DPM_EVENT_SRC_DIGITAL;
1827 break;
1828
1829 case (1 << RADEON_DPM_AUTO_THROTTLE_SRC_EXTERNAL):
1830 want_thermal_protection = true;
1831 dpm_event_src = RADEON_DPM_EVENT_SRC_EXTERNAL;
1832 break;
1833
1834 case ((1 << RADEON_DPM_AUTO_THROTTLE_SRC_EXTERNAL) |
1835 (1 << RADEON_DPM_AUTO_THROTTLE_SRC_THERMAL)):
1836 want_thermal_protection = true;
1837 dpm_event_src = RADEON_DPM_EVENT_SRC_DIGIAL_OR_EXTERNAL;
1838 break;
1839 }
1840
1841 if (want_thermal_protection) {
1842 WREG32_P(CG_THERMAL_CTRL, DPM_EVENT_SRC(dpm_event_src), ~DPM_EVENT_SRC_MASK);
1843 if (pi->thermal_protection)
1844 WREG32_P(GENERAL_PWRMGT, 0, ~THERMAL_PROTECTION_DIS);
1845 } else {
1846 WREG32_P(GENERAL_PWRMGT, THERMAL_PROTECTION_DIS, ~THERMAL_PROTECTION_DIS);
1847 }
1848 }
1849
1850 void rv770_enable_auto_throttle_source(struct radeon_device *rdev,
1851 enum radeon_dpm_auto_throttle_src source,
1852 bool enable)
1853 {
1854 struct rv7xx_power_info *pi = rv770_get_pi(rdev);
1855
1856 if (enable) {
1857 if (!(pi->active_auto_throttle_sources & (1 << source))) {
1858 pi->active_auto_throttle_sources |= 1 << source;
1859 rv770_set_dpm_event_sources(rdev, pi->active_auto_throttle_sources);
1860 }
1861 } else {
1862 if (pi->active_auto_throttle_sources & (1 << source)) {
1863 pi->active_auto_throttle_sources &= ~(1 << source);
1864 rv770_set_dpm_event_sources(rdev, pi->active_auto_throttle_sources);
1865 }
1866 }
1867 }
1868
1869 static int rv770_set_thermal_temperature_range(struct radeon_device *rdev,
1870 int min_temp, int max_temp)
1871 {
1872 int low_temp = 0 * 1000;
1873 int high_temp = 255 * 1000;
1874
1875 if (low_temp < min_temp)
1876 low_temp = min_temp;
1877 if (high_temp > max_temp)
1878 high_temp = max_temp;
1879 if (high_temp < low_temp) {
1880 DRM_ERROR("invalid thermal range: %d - %d\n", low_temp, high_temp);
1881 return -EINVAL;
1882 }
1883
1884 WREG32_P(CG_THERMAL_INT, DIG_THERM_INTH(high_temp / 1000), ~DIG_THERM_INTH_MASK);
1885 WREG32_P(CG_THERMAL_INT, DIG_THERM_INTL(low_temp / 1000), ~DIG_THERM_INTL_MASK);
1886 WREG32_P(CG_THERMAL_CTRL, DIG_THERM_DPM(high_temp / 1000), ~DIG_THERM_DPM_MASK);
1887
1888 rdev->pm.dpm.thermal.min_temp = low_temp;
1889 rdev->pm.dpm.thermal.max_temp = high_temp;
1890
1891 return 0;
1892 }
1893
1894 int rv770_dpm_enable(struct radeon_device *rdev)
1895 {
1896 struct rv7xx_power_info *pi = rv770_get_pi(rdev);
1897 struct radeon_ps *boot_ps = rdev->pm.dpm.boot_ps;
1898 int ret;
1899
1900 if (pi->gfx_clock_gating)
1901 rv770_restore_cgcg(rdev);
1902
1903 if (rv770_dpm_enabled(rdev))
1904 return -EINVAL;
1905
1906 if (pi->voltage_control) {
1907 rv770_enable_voltage_control(rdev, true);
1908 ret = rv770_construct_vddc_table(rdev);
1909 if (ret) {
1910 DRM_ERROR("rv770_construct_vddc_table failed\n");
1911 return ret;
1912 }
1913 }
1914
1915 if (pi->dcodt)
1916 rv770_retrieve_odt_values(rdev);
1917
1918 if (pi->mvdd_control) {
1919 ret = rv770_get_mvdd_configuration(rdev);
1920 if (ret) {
1921 DRM_ERROR("rv770_get_mvdd_configuration failed\n");
1922 return ret;
1923 }
1924 }
1925
1926 if (rdev->pm.dpm.platform_caps & ATOM_PP_PLATFORM_CAP_BACKBIAS)
1927 rv770_enable_backbias(rdev, true);
1928
1929 rv770_enable_spread_spectrum(rdev, true);
1930
1931 if (pi->thermal_protection)
1932 rv770_enable_thermal_protection(rdev, true);
1933
1934 rv770_program_mpll_timing_parameters(rdev);
1935 rv770_setup_bsp(rdev);
1936 rv770_program_git(rdev);
1937 rv770_program_tp(rdev);
1938 rv770_program_tpp(rdev);
1939 rv770_program_sstp(rdev);
1940 rv770_program_engine_speed_parameters(rdev);
1941 rv770_enable_display_gap(rdev);
1942 rv770_program_vc(rdev);
1943
1944 if (pi->dynamic_pcie_gen2)
1945 rv770_enable_dynamic_pcie_gen2(rdev, true);
1946
1947 ret = rv770_upload_firmware(rdev);
1948 if (ret) {
1949 DRM_ERROR("rv770_upload_firmware failed\n");
1950 return ret;
1951 }
1952 ret = rv770_init_smc_table(rdev, boot_ps);
1953 if (ret) {
1954 DRM_ERROR("rv770_init_smc_table failed\n");
1955 return ret;
1956 }
1957
1958 rv770_program_response_times(rdev);
1959 r7xx_start_smc(rdev);
1960
1961 if ((rdev->family == CHIP_RV730) || (rdev->family == CHIP_RV710))
1962 rv730_start_dpm(rdev);
1963 else
1964 rv770_start_dpm(rdev);
1965
1966 if (pi->gfx_clock_gating)
1967 rv770_gfx_clock_gating_enable(rdev, true);
1968
1969 if (pi->mg_clock_gating)
1970 rv770_mg_clock_gating_enable(rdev, true);
1971
1972 rv770_enable_auto_throttle_source(rdev, RADEON_DPM_AUTO_THROTTLE_SRC_THERMAL, true);
1973
1974 return 0;
1975 }
1976
1977 int rv770_dpm_late_enable(struct radeon_device *rdev)
1978 {
1979 int ret;
1980
1981 if (rdev->irq.installed &&
1982 r600_is_internal_thermal_sensor(rdev->pm.int_thermal_type)) {
1983 PPSMC_Result result;
1984
1985 ret = rv770_set_thermal_temperature_range(rdev, R600_TEMP_RANGE_MIN, R600_TEMP_RANGE_MAX);
1986 if (ret)
1987 return ret;
1988 rdev->irq.dpm_thermal = true;
1989 radeon_irq_set(rdev);
1990 result = rv770_send_msg_to_smc(rdev, PPSMC_MSG_EnableThermalInterrupt);
1991
1992 if (result != PPSMC_Result_OK)
1993 DRM_DEBUG_KMS("Could not enable thermal interrupts.\n");
1994 }
1995
1996 return 0;
1997 }
1998
1999 void rv770_dpm_disable(struct radeon_device *rdev)
2000 {
2001 struct rv7xx_power_info *pi = rv770_get_pi(rdev);
2002
2003 if (!rv770_dpm_enabled(rdev))
2004 return;
2005
2006 rv770_clear_vc(rdev);
2007
2008 if (pi->thermal_protection)
2009 rv770_enable_thermal_protection(rdev, false);
2010
2011 rv770_enable_spread_spectrum(rdev, false);
2012
2013 if (pi->dynamic_pcie_gen2)
2014 rv770_enable_dynamic_pcie_gen2(rdev, false);
2015
2016 if (rdev->irq.installed &&
2017 r600_is_internal_thermal_sensor(rdev->pm.int_thermal_type)) {
2018 rdev->irq.dpm_thermal = false;
2019 radeon_irq_set(rdev);
2020 }
2021
2022 if (pi->gfx_clock_gating)
2023 rv770_gfx_clock_gating_enable(rdev, false);
2024
2025 if (pi->mg_clock_gating)
2026 rv770_mg_clock_gating_enable(rdev, false);
2027
2028 if ((rdev->family == CHIP_RV730) || (rdev->family == CHIP_RV710))
2029 rv730_stop_dpm(rdev);
2030 else
2031 rv770_stop_dpm(rdev);
2032
2033 r7xx_stop_smc(rdev);
2034 rv770_reset_smio_status(rdev);
2035 }
2036
2037 int rv770_dpm_set_power_state(struct radeon_device *rdev)
2038 {
2039 struct rv7xx_power_info *pi = rv770_get_pi(rdev);
2040 struct radeon_ps *new_ps = rdev->pm.dpm.requested_ps;
2041 struct radeon_ps *old_ps = rdev->pm.dpm.current_ps;
2042 int ret;
2043
2044 ret = rv770_restrict_performance_levels_before_switch(rdev);
2045 if (ret) {
2046 DRM_ERROR("rv770_restrict_performance_levels_before_switch failed\n");
2047 return ret;
2048 }
2049 rv770_set_uvd_clock_before_set_eng_clock(rdev, new_ps, old_ps);
2050 ret = rv770_halt_smc(rdev);
2051 if (ret) {
2052 DRM_ERROR("rv770_halt_smc failed\n");
2053 return ret;
2054 }
2055 ret = rv770_upload_sw_state(rdev, new_ps);
2056 if (ret) {
2057 DRM_ERROR("rv770_upload_sw_state failed\n");
2058 return ret;
2059 }
2060 r7xx_program_memory_timing_parameters(rdev, new_ps);
2061 if (pi->dcodt)
2062 rv770_program_dcodt_before_state_switch(rdev, new_ps, old_ps);
2063 ret = rv770_resume_smc(rdev);
2064 if (ret) {
2065 DRM_ERROR("rv770_resume_smc failed\n");
2066 return ret;
2067 }
2068 ret = rv770_set_sw_state(rdev);
2069 if (ret) {
2070 DRM_ERROR("rv770_set_sw_state failed\n");
2071 return ret;
2072 }
2073 if (pi->dcodt)
2074 rv770_program_dcodt_after_state_switch(rdev, new_ps, old_ps);
2075 rv770_set_uvd_clock_after_set_eng_clock(rdev, new_ps, old_ps);
2076
2077 return 0;
2078 }
2079
2080 #if 0
2081 void rv770_dpm_reset_asic(struct radeon_device *rdev)
2082 {
2083 struct rv7xx_power_info *pi = rv770_get_pi(rdev);
2084 struct radeon_ps *boot_ps = rdev->pm.dpm.boot_ps;
2085
2086 rv770_restrict_performance_levels_before_switch(rdev);
2087 if (pi->dcodt)
2088 rv770_program_dcodt_before_state_switch(rdev, boot_ps, boot_ps);
2089 rv770_set_boot_state(rdev);
2090 if (pi->dcodt)
2091 rv770_program_dcodt_after_state_switch(rdev, boot_ps, boot_ps);
2092 }
2093 #endif
2094
2095 void rv770_dpm_setup_asic(struct radeon_device *rdev)
2096 {
2097 struct rv7xx_power_info *pi = rv770_get_pi(rdev);
2098
2099 r7xx_read_clock_registers(rdev);
2100 rv770_read_voltage_smio_registers(rdev);
2101 rv770_get_memory_type(rdev);
2102 if (pi->dcodt)
2103 rv770_get_mclk_odt_threshold(rdev);
2104 rv770_get_pcie_gen2_status(rdev);
2105
2106 rv770_enable_acpi_pm(rdev);
2107
2108 if (radeon_aspm != 0) {
2109 if (rdev->pm.dpm.platform_caps & ATOM_PP_PLATFORM_CAP_ASPM_L0s)
2110 rv770_enable_l0s(rdev);
2111 if (rdev->pm.dpm.platform_caps & ATOM_PP_PLATFORM_CAP_ASPM_L1)
2112 rv770_enable_l1(rdev);
2113 if (rdev->pm.dpm.platform_caps & ATOM_PP_PLATFORM_CAP_TURNOFFPLL_ASPML1)
2114 rv770_enable_pll_sleep_in_l1(rdev);
2115 }
2116 }
2117
2118 void rv770_dpm_display_configuration_changed(struct radeon_device *rdev)
2119 {
2120 rv770_program_display_gap(rdev);
2121 }
2122
2123 union power_info {
2124 struct _ATOM_POWERPLAY_INFO info;
2125 struct _ATOM_POWERPLAY_INFO_V2 info_2;
2126 struct _ATOM_POWERPLAY_INFO_V3 info_3;
2127 struct _ATOM_PPLIB_POWERPLAYTABLE pplib;
2128 struct _ATOM_PPLIB_POWERPLAYTABLE2 pplib2;
2129 struct _ATOM_PPLIB_POWERPLAYTABLE3 pplib3;
2130 };
2131
2132 union pplib_clock_info {
2133 struct _ATOM_PPLIB_R600_CLOCK_INFO r600;
2134 struct _ATOM_PPLIB_RS780_CLOCK_INFO rs780;
2135 struct _ATOM_PPLIB_EVERGREEN_CLOCK_INFO evergreen;
2136 struct _ATOM_PPLIB_SUMO_CLOCK_INFO sumo;
2137 };
2138
2139 union pplib_power_state {
2140 struct _ATOM_PPLIB_STATE v1;
2141 struct _ATOM_PPLIB_STATE_V2 v2;
2142 };
2143
2144 static void rv7xx_parse_pplib_non_clock_info(struct radeon_device *rdev,
2145 struct radeon_ps *rps,
2146 struct _ATOM_PPLIB_NONCLOCK_INFO *non_clock_info,
2147 u8 table_rev)
2148 {
2149 rps->caps = le32_to_cpu(non_clock_info->ulCapsAndSettings);
2150 rps->class = le16_to_cpu(non_clock_info->usClassification);
2151 rps->class2 = le16_to_cpu(non_clock_info->usClassification2);
2152
2153 if (ATOM_PPLIB_NONCLOCKINFO_VER1 < table_rev) {
2154 rps->vclk = le32_to_cpu(non_clock_info->ulVCLK);
2155 rps->dclk = le32_to_cpu(non_clock_info->ulDCLK);
2156 } else {
2157 rps->vclk = 0;
2158 rps->dclk = 0;
2159 }
2160
2161 if (r600_is_uvd_state(rps->class, rps->class2)) {
2162 if ((rps->vclk == 0) || (rps->dclk == 0)) {
2163 rps->vclk = RV770_DEFAULT_VCLK_FREQ;
2164 rps->dclk = RV770_DEFAULT_DCLK_FREQ;
2165 }
2166 }
2167
2168 if (rps->class & ATOM_PPLIB_CLASSIFICATION_BOOT)
2169 rdev->pm.dpm.boot_ps = rps;
2170 if (rps->class & ATOM_PPLIB_CLASSIFICATION_UVDSTATE)
2171 rdev->pm.dpm.uvd_ps = rps;
2172 }
2173
2174 static void rv7xx_parse_pplib_clock_info(struct radeon_device *rdev,
2175 struct radeon_ps *rps, int index,
2176 union pplib_clock_info *clock_info)
2177 {
2178 struct rv7xx_power_info *pi = rv770_get_pi(rdev);
2179 struct evergreen_power_info *eg_pi = evergreen_get_pi(rdev);
2180 struct rv7xx_ps *ps = rv770_get_ps(rps);
2181 u32 sclk, mclk;
2182 struct rv7xx_pl *pl;
2183
2184 switch (index) {
2185 case 0:
2186 pl = &ps->low;
2187 break;
2188 case 1:
2189 pl = &ps->medium;
2190 break;
2191 case 2:
2192 default:
2193 pl = &ps->high;
2194 break;
2195 }
2196
2197 if (rdev->family >= CHIP_CEDAR) {
2198 sclk = le16_to_cpu(clock_info->evergreen.usEngineClockLow);
2199 sclk |= clock_info->evergreen.ucEngineClockHigh << 16;
2200 mclk = le16_to_cpu(clock_info->evergreen.usMemoryClockLow);
2201 mclk |= clock_info->evergreen.ucMemoryClockHigh << 16;
2202
2203 pl->vddc = le16_to_cpu(clock_info->evergreen.usVDDC);
2204 pl->vddci = le16_to_cpu(clock_info->evergreen.usVDDCI);
2205 pl->flags = le32_to_cpu(clock_info->evergreen.ulFlags);
2206 } else {
2207 sclk = le16_to_cpu(clock_info->r600.usEngineClockLow);
2208 sclk |= clock_info->r600.ucEngineClockHigh << 16;
2209 mclk = le16_to_cpu(clock_info->r600.usMemoryClockLow);
2210 mclk |= clock_info->r600.ucMemoryClockHigh << 16;
2211
2212 pl->vddc = le16_to_cpu(clock_info->r600.usVDDC);
2213 pl->flags = le32_to_cpu(clock_info->r600.ulFlags);
2214 }
2215
2216 pl->mclk = mclk;
2217 pl->sclk = sclk;
2218
2219 /* patch up vddc if necessary */
2220 if (pl->vddc == 0xff01) {
2221 if (pi->max_vddc)
2222 pl->vddc = pi->max_vddc;
2223 }
2224
2225 if (rps->class & ATOM_PPLIB_CLASSIFICATION_ACPI) {
2226 pi->acpi_vddc = pl->vddc;
2227 if (rdev->family >= CHIP_CEDAR)
2228 eg_pi->acpi_vddci = pl->vddci;
2229 if (ps->low.flags & ATOM_PPLIB_R600_FLAGS_PCIEGEN2)
2230 pi->acpi_pcie_gen2 = true;
2231 else
2232 pi->acpi_pcie_gen2 = false;
2233 }
2234
2235 if (rps->class2 & ATOM_PPLIB_CLASSIFICATION2_ULV) {
2236 if (rdev->family >= CHIP_BARTS) {
2237 eg_pi->ulv.supported = true;
2238 eg_pi->ulv.pl = pl;
2239 }
2240 }
2241
2242 if (pi->min_vddc_in_table > pl->vddc)
2243 pi->min_vddc_in_table = pl->vddc;
2244
2245 if (pi->max_vddc_in_table < pl->vddc)
2246 pi->max_vddc_in_table = pl->vddc;
2247
2248 /* patch up boot state */
2249 if (rps->class & ATOM_PPLIB_CLASSIFICATION_BOOT) {
2250 u16 vddc, vddci, mvdd;
2251 radeon_atombios_get_default_voltages(rdev, &vddc, &vddci, &mvdd);
2252 pl->mclk = rdev->clock.default_mclk;
2253 pl->sclk = rdev->clock.default_sclk;
2254 pl->vddc = vddc;
2255 pl->vddci = vddci;
2256 }
2257
2258 if ((rps->class & ATOM_PPLIB_CLASSIFICATION_UI_MASK) ==
2259 ATOM_PPLIB_CLASSIFICATION_UI_PERFORMANCE) {
2260 rdev->pm.dpm.dyn_state.max_clock_voltage_on_ac.sclk = pl->sclk;
2261 rdev->pm.dpm.dyn_state.max_clock_voltage_on_ac.mclk = pl->mclk;
2262 rdev->pm.dpm.dyn_state.max_clock_voltage_on_ac.vddc = pl->vddc;
2263 rdev->pm.dpm.dyn_state.max_clock_voltage_on_ac.vddci = pl->vddci;
2264 }
2265 }
2266
2267 int rv7xx_parse_power_table(struct radeon_device *rdev)
2268 {
2269 struct radeon_mode_info *mode_info = &rdev->mode_info;
2270 struct _ATOM_PPLIB_NONCLOCK_INFO *non_clock_info;
2271 union pplib_power_state *power_state;
2272 int i, j;
2273 union pplib_clock_info *clock_info;
2274 union power_info *power_info;
2275 int index = GetIndexIntoMasterTable(DATA, PowerPlayInfo);
2276 u16 data_offset;
2277 u8 frev, crev;
2278 struct rv7xx_ps *ps;
2279
2280 if (!atom_parse_data_header(mode_info->atom_context, index, NULL,
2281 &frev, &crev, &data_offset))
2282 return -EINVAL;
2283 power_info = (union power_info *)(mode_info->atom_context->bios + data_offset);
2284
2285 rdev->pm.dpm.ps = kzalloc(sizeof(struct radeon_ps) *
2286 power_info->pplib.ucNumStates, GFP_KERNEL);
2287 if (!rdev->pm.dpm.ps)
2288 return -ENOMEM;
2289
2290 for (i = 0; i < power_info->pplib.ucNumStates; i++) {
2291 power_state = (union pplib_power_state *)
2292 (mode_info->atom_context->bios + data_offset +
2293 le16_to_cpu(power_info->pplib.usStateArrayOffset) +
2294 i * power_info->pplib.ucStateEntrySize);
2295 non_clock_info = (struct _ATOM_PPLIB_NONCLOCK_INFO *)
2296 (mode_info->atom_context->bios + data_offset +
2297 le16_to_cpu(power_info->pplib.usNonClockInfoArrayOffset) +
2298 (power_state->v1.ucNonClockStateIndex *
2299 power_info->pplib.ucNonClockSize));
2300 if (power_info->pplib.ucStateEntrySize - 1) {
2301 u8 *idx;
2302 ps = kzalloc(sizeof(struct rv7xx_ps), GFP_KERNEL);
2303 if (ps == NULL) {
2304 kfree(rdev->pm.dpm.ps);
2305 return -ENOMEM;
2306 }
2307 rdev->pm.dpm.ps[i].ps_priv = ps;
2308 rv7xx_parse_pplib_non_clock_info(rdev, &rdev->pm.dpm.ps[i],
2309 non_clock_info,
2310 power_info->pplib.ucNonClockSize);
2311 idx = (u8 *)&power_state->v1.ucClockStateIndices[0];
2312 for (j = 0; j < (power_info->pplib.ucStateEntrySize - 1); j++) {
2313 clock_info = (union pplib_clock_info *)
2314 (mode_info->atom_context->bios + data_offset +
2315 le16_to_cpu(power_info->pplib.usClockInfoArrayOffset) +
2316 (idx[j] * power_info->pplib.ucClockInfoSize));
2317 rv7xx_parse_pplib_clock_info(rdev,
2318 &rdev->pm.dpm.ps[i], j,
2319 clock_info);
2320 }
2321 }
2322 }
2323 rdev->pm.dpm.num_ps = power_info->pplib.ucNumStates;
2324 return 0;
2325 }
2326
2327 void rv770_get_engine_memory_ss(struct radeon_device *rdev)
2328 {
2329 struct rv7xx_power_info *pi = rv770_get_pi(rdev);
2330 struct radeon_atom_ss ss;
2331
2332 pi->sclk_ss = radeon_atombios_get_asic_ss_info(rdev, &ss,
2333 ASIC_INTERNAL_ENGINE_SS, 0);
2334 pi->mclk_ss = radeon_atombios_get_asic_ss_info(rdev, &ss,
2335 ASIC_INTERNAL_MEMORY_SS, 0);
2336
2337 if (pi->sclk_ss || pi->mclk_ss)
2338 pi->dynamic_ss = true;
2339 else
2340 pi->dynamic_ss = false;
2341 }
2342
2343 int rv770_dpm_init(struct radeon_device *rdev)
2344 {
2345 struct rv7xx_power_info *pi;
2346 struct atom_clock_dividers dividers;
2347 int ret;
2348
2349 pi = kzalloc(sizeof(struct rv7xx_power_info), GFP_KERNEL);
2350 if (pi == NULL)
2351 return -ENOMEM;
2352 rdev->pm.dpm.priv = pi;
2353
2354 rv770_get_max_vddc(rdev);
2355
2356 pi->acpi_vddc = 0;
2357 pi->min_vddc_in_table = 0;
2358 pi->max_vddc_in_table = 0;
2359
2360 ret = r600_get_platform_caps(rdev);
2361 if (ret)
2362 return ret;
2363
2364 ret = rv7xx_parse_power_table(rdev);
2365 if (ret)
2366 return ret;
2367
2368 if (rdev->pm.dpm.voltage_response_time == 0)
2369 rdev->pm.dpm.voltage_response_time = R600_VOLTAGERESPONSETIME_DFLT;
2370 if (rdev->pm.dpm.backbias_response_time == 0)
2371 rdev->pm.dpm.backbias_response_time = R600_BACKBIASRESPONSETIME_DFLT;
2372
2373 ret = radeon_atom_get_clock_dividers(rdev, COMPUTE_ENGINE_PLL_PARAM,
2374 0, false, &dividers);
2375 if (ret)
2376 pi->ref_div = dividers.ref_div + 1;
2377 else
2378 pi->ref_div = R600_REFERENCEDIVIDER_DFLT;
2379
2380 pi->mclk_strobe_mode_threshold = 30000;
2381 pi->mclk_edc_enable_threshold = 30000;
2382
2383 pi->rlp = RV770_RLP_DFLT;
2384 pi->rmp = RV770_RMP_DFLT;
2385 pi->lhp = RV770_LHP_DFLT;
2386 pi->lmp = RV770_LMP_DFLT;
2387
2388 pi->voltage_control =
2389 radeon_atom_is_voltage_gpio(rdev, SET_VOLTAGE_TYPE_ASIC_VDDC, 0);
2390
2391 pi->mvdd_control =
2392 radeon_atom_is_voltage_gpio(rdev, SET_VOLTAGE_TYPE_ASIC_MVDDC, 0);
2393
2394 rv770_get_engine_memory_ss(rdev);
2395
2396 pi->asi = RV770_ASI_DFLT;
2397 pi->pasi = RV770_HASI_DFLT;
2398 pi->vrc = RV770_VRC_DFLT;
2399
2400 pi->power_gating = false;
2401
2402 pi->gfx_clock_gating = true;
2403
2404 pi->mg_clock_gating = true;
2405 pi->mgcgtssm = true;
2406
2407 pi->dynamic_pcie_gen2 = true;
2408
2409 if (rdev->pm.int_thermal_type != THERMAL_TYPE_NONE)
2410 pi->thermal_protection = true;
2411 else
2412 pi->thermal_protection = false;
2413
2414 pi->display_gap = true;
2415
2416 if (rdev->flags & RADEON_IS_MOBILITY)
2417 pi->dcodt = true;
2418 else
2419 pi->dcodt = false;
2420
2421 pi->ulps = true;
2422
2423 pi->mclk_stutter_mode_threshold = 0;
2424
2425 pi->sram_end = SMC_RAM_END;
2426 pi->state_table_start = RV770_SMC_TABLE_ADDRESS;
2427 pi->soft_regs_start = RV770_SMC_SOFT_REGISTERS_START;
2428
2429 return 0;
2430 }
2431
2432 void rv770_dpm_print_power_state(struct radeon_device *rdev,
2433 struct radeon_ps *rps)
2434 {
2435 struct rv7xx_ps *ps = rv770_get_ps(rps);
2436 struct rv7xx_pl *pl;
2437
2438 r600_dpm_print_class_info(rps->class, rps->class2);
2439 r600_dpm_print_cap_info(rps->caps);
2440 printk("\tuvd vclk: %d dclk: %d\n", rps->vclk, rps->dclk);
2441 if (rdev->family >= CHIP_CEDAR) {
2442 pl = &ps->low;
2443 printk("\t\tpower level 0 sclk: %u mclk: %u vddc: %u vddci: %u\n",
2444 pl->sclk, pl->mclk, pl->vddc, pl->vddci);
2445 pl = &ps->medium;
2446 printk("\t\tpower level 1 sclk: %u mclk: %u vddc: %u vddci: %u\n",
2447 pl->sclk, pl->mclk, pl->vddc, pl->vddci);
2448 pl = &ps->high;
2449 printk("\t\tpower level 2 sclk: %u mclk: %u vddc: %u vddci: %u\n",
2450 pl->sclk, pl->mclk, pl->vddc, pl->vddci);
2451 } else {
2452 pl = &ps->low;
2453 printk("\t\tpower level 0 sclk: %u mclk: %u vddc: %u\n",
2454 pl->sclk, pl->mclk, pl->vddc);
2455 pl = &ps->medium;
2456 printk("\t\tpower level 1 sclk: %u mclk: %u vddc: %u\n",
2457 pl->sclk, pl->mclk, pl->vddc);
2458 pl = &ps->high;
2459 printk("\t\tpower level 2 sclk: %u mclk: %u vddc: %u\n",
2460 pl->sclk, pl->mclk, pl->vddc);
2461 }
2462 r600_dpm_print_ps_status(rdev, rps);
2463 }
2464
2465 void rv770_dpm_debugfs_print_current_performance_level(struct radeon_device *rdev,
2466 struct seq_file *m)
2467 {
2468 struct radeon_ps *rps = rdev->pm.dpm.current_ps;
2469 struct rv7xx_ps *ps = rv770_get_ps(rps);
2470 struct rv7xx_pl *pl;
2471 u32 current_index =
2472 (RREG32(TARGET_AND_CURRENT_PROFILE_INDEX) & CURRENT_PROFILE_INDEX_MASK) >>
2473 CURRENT_PROFILE_INDEX_SHIFT;
2474
2475 if (current_index > 2) {
2476 seq_printf(m, "invalid dpm profile %d\n", current_index);
2477 } else {
2478 if (current_index == 0)
2479 pl = &ps->low;
2480 else if (current_index == 1)
2481 pl = &ps->medium;
2482 else /* current_index == 2 */
2483 pl = &ps->high;
2484 seq_printf(m, "uvd vclk: %d dclk: %d\n", rps->vclk, rps->dclk);
2485 if (rdev->family >= CHIP_CEDAR) {
2486 seq_printf(m, "power level %d sclk: %u mclk: %u vddc: %u vddci: %u\n",
2487 current_index, pl->sclk, pl->mclk, pl->vddc, pl->vddci);
2488 } else {
2489 seq_printf(m, "power level %d sclk: %u mclk: %u vddc: %u\n",
2490 current_index, pl->sclk, pl->mclk, pl->vddc);
2491 }
2492 }
2493 }
2494
2495 u32 rv770_dpm_get_current_sclk(struct radeon_device *rdev)
2496 {
2497 struct radeon_ps *rps = rdev->pm.dpm.current_ps;
2498 struct rv7xx_ps *ps = rv770_get_ps(rps);
2499 struct rv7xx_pl *pl;
2500 u32 current_index =
2501 (RREG32(TARGET_AND_CURRENT_PROFILE_INDEX) & CURRENT_PROFILE_INDEX_MASK) >>
2502 CURRENT_PROFILE_INDEX_SHIFT;
2503
2504 if (current_index > 2) {
2505 return 0;
2506 } else {
2507 if (current_index == 0)
2508 pl = &ps->low;
2509 else if (current_index == 1)
2510 pl = &ps->medium;
2511 else /* current_index == 2 */
2512 pl = &ps->high;
2513 return pl->sclk;
2514 }
2515 }
2516
2517 u32 rv770_dpm_get_current_mclk(struct radeon_device *rdev)
2518 {
2519 struct radeon_ps *rps = rdev->pm.dpm.current_ps;
2520 struct rv7xx_ps *ps = rv770_get_ps(rps);
2521 struct rv7xx_pl *pl;
2522 u32 current_index =
2523 (RREG32(TARGET_AND_CURRENT_PROFILE_INDEX) & CURRENT_PROFILE_INDEX_MASK) >>
2524 CURRENT_PROFILE_INDEX_SHIFT;
2525
2526 if (current_index > 2) {
2527 return 0;
2528 } else {
2529 if (current_index == 0)
2530 pl = &ps->low;
2531 else if (current_index == 1)
2532 pl = &ps->medium;
2533 else /* current_index == 2 */
2534 pl = &ps->high;
2535 return pl->mclk;
2536 }
2537 }
2538
2539 void rv770_dpm_fini(struct radeon_device *rdev)
2540 {
2541 int i;
2542
2543 for (i = 0; i < rdev->pm.dpm.num_ps; i++) {
2544 kfree(rdev->pm.dpm.ps[i].ps_priv);
2545 }
2546 kfree(rdev->pm.dpm.ps);
2547 kfree(rdev->pm.dpm.priv);
2548 }
2549
2550 u32 rv770_dpm_get_sclk(struct radeon_device *rdev, bool low)
2551 {
2552 struct rv7xx_ps *requested_state = rv770_get_ps(rdev->pm.dpm.requested_ps);
2553
2554 if (low)
2555 return requested_state->low.sclk;
2556 else
2557 return requested_state->high.sclk;
2558 }
2559
2560 u32 rv770_dpm_get_mclk(struct radeon_device *rdev, bool low)
2561 {
2562 struct rv7xx_ps *requested_state = rv770_get_ps(rdev->pm.dpm.requested_ps);
2563
2564 if (low)
2565 return requested_state->low.mclk;
2566 else
2567 return requested_state->high.mclk;
2568 }
2569
2570 bool rv770_dpm_vblank_too_short(struct radeon_device *rdev)
2571 {
2572 u32 vblank_time = r600_dpm_get_vblank_time(rdev);
2573 u32 switch_limit = 200; /* 300 */
2574
2575 /* RV770 */
2576 /* mclk switching doesn't seem to work reliably on desktop RV770s */
2577 if ((rdev->family == CHIP_RV770) &&
2578 !(rdev->flags & RADEON_IS_MOBILITY))
2579 switch_limit = 0xffffffff; /* disable mclk switching */
2580
2581 if (vblank_time < switch_limit)
2582 return true;
2583 else
2584 return false;
2585
2586 }
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