xref: /openbmc/linux/drivers/gpu/drm/radeon/r600_dpm.c (revision 0da85d1e)
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 "r600d.h"
29 #include "r600_dpm.h"
30 #include "atom.h"
31 
32 const u32 r600_utc[R600_PM_NUMBER_OF_TC] =
33 {
34 	R600_UTC_DFLT_00,
35 	R600_UTC_DFLT_01,
36 	R600_UTC_DFLT_02,
37 	R600_UTC_DFLT_03,
38 	R600_UTC_DFLT_04,
39 	R600_UTC_DFLT_05,
40 	R600_UTC_DFLT_06,
41 	R600_UTC_DFLT_07,
42 	R600_UTC_DFLT_08,
43 	R600_UTC_DFLT_09,
44 	R600_UTC_DFLT_10,
45 	R600_UTC_DFLT_11,
46 	R600_UTC_DFLT_12,
47 	R600_UTC_DFLT_13,
48 	R600_UTC_DFLT_14,
49 };
50 
51 const u32 r600_dtc[R600_PM_NUMBER_OF_TC] =
52 {
53 	R600_DTC_DFLT_00,
54 	R600_DTC_DFLT_01,
55 	R600_DTC_DFLT_02,
56 	R600_DTC_DFLT_03,
57 	R600_DTC_DFLT_04,
58 	R600_DTC_DFLT_05,
59 	R600_DTC_DFLT_06,
60 	R600_DTC_DFLT_07,
61 	R600_DTC_DFLT_08,
62 	R600_DTC_DFLT_09,
63 	R600_DTC_DFLT_10,
64 	R600_DTC_DFLT_11,
65 	R600_DTC_DFLT_12,
66 	R600_DTC_DFLT_13,
67 	R600_DTC_DFLT_14,
68 };
69 
70 void r600_dpm_print_class_info(u32 class, u32 class2)
71 {
72 	printk("\tui class: ");
73 	switch (class & ATOM_PPLIB_CLASSIFICATION_UI_MASK) {
74 	case ATOM_PPLIB_CLASSIFICATION_UI_NONE:
75 	default:
76 		printk("none\n");
77 		break;
78 	case ATOM_PPLIB_CLASSIFICATION_UI_BATTERY:
79 		printk("battery\n");
80 		break;
81 	case ATOM_PPLIB_CLASSIFICATION_UI_BALANCED:
82 		printk("balanced\n");
83 		break;
84 	case ATOM_PPLIB_CLASSIFICATION_UI_PERFORMANCE:
85 		printk("performance\n");
86 		break;
87 	}
88 	printk("\tinternal class: ");
89 	if (((class & ~ATOM_PPLIB_CLASSIFICATION_UI_MASK) == 0) &&
90 	    (class2 == 0))
91 		printk("none");
92 	else {
93 		if (class & ATOM_PPLIB_CLASSIFICATION_BOOT)
94 			printk("boot ");
95 		if (class & ATOM_PPLIB_CLASSIFICATION_THERMAL)
96 			printk("thermal ");
97 		if (class & ATOM_PPLIB_CLASSIFICATION_LIMITEDPOWERSOURCE)
98 			printk("limited_pwr ");
99 		if (class & ATOM_PPLIB_CLASSIFICATION_REST)
100 			printk("rest ");
101 		if (class & ATOM_PPLIB_CLASSIFICATION_FORCED)
102 			printk("forced ");
103 		if (class & ATOM_PPLIB_CLASSIFICATION_3DPERFORMANCE)
104 			printk("3d_perf ");
105 		if (class & ATOM_PPLIB_CLASSIFICATION_OVERDRIVETEMPLATE)
106 			printk("ovrdrv ");
107 		if (class & ATOM_PPLIB_CLASSIFICATION_UVDSTATE)
108 			printk("uvd ");
109 		if (class & ATOM_PPLIB_CLASSIFICATION_3DLOW)
110 			printk("3d_low ");
111 		if (class & ATOM_PPLIB_CLASSIFICATION_ACPI)
112 			printk("acpi ");
113 		if (class & ATOM_PPLIB_CLASSIFICATION_HD2STATE)
114 			printk("uvd_hd2 ");
115 		if (class & ATOM_PPLIB_CLASSIFICATION_HDSTATE)
116 			printk("uvd_hd ");
117 		if (class & ATOM_PPLIB_CLASSIFICATION_SDSTATE)
118 			printk("uvd_sd ");
119 		if (class2 & ATOM_PPLIB_CLASSIFICATION2_LIMITEDPOWERSOURCE_2)
120 			printk("limited_pwr2 ");
121 		if (class2 & ATOM_PPLIB_CLASSIFICATION2_ULV)
122 			printk("ulv ");
123 		if (class2 & ATOM_PPLIB_CLASSIFICATION2_MVC)
124 			printk("uvd_mvc ");
125 	}
126 	printk("\n");
127 }
128 
129 void r600_dpm_print_cap_info(u32 caps)
130 {
131 	printk("\tcaps: ");
132 	if (caps & ATOM_PPLIB_SINGLE_DISPLAY_ONLY)
133 		printk("single_disp ");
134 	if (caps & ATOM_PPLIB_SUPPORTS_VIDEO_PLAYBACK)
135 		printk("video ");
136 	if (caps & ATOM_PPLIB_DISALLOW_ON_DC)
137 		printk("no_dc ");
138 	printk("\n");
139 }
140 
141 void r600_dpm_print_ps_status(struct radeon_device *rdev,
142 			      struct radeon_ps *rps)
143 {
144 	printk("\tstatus: ");
145 	if (rps == rdev->pm.dpm.current_ps)
146 		printk("c ");
147 	if (rps == rdev->pm.dpm.requested_ps)
148 		printk("r ");
149 	if (rps == rdev->pm.dpm.boot_ps)
150 		printk("b ");
151 	printk("\n");
152 }
153 
154 u32 r600_dpm_get_vblank_time(struct radeon_device *rdev)
155 {
156 	struct drm_device *dev = rdev->ddev;
157 	struct drm_crtc *crtc;
158 	struct radeon_crtc *radeon_crtc;
159 	u32 line_time_us, vblank_lines;
160 	u32 vblank_time_us = 0xffffffff; /* if the displays are off, vblank time is max */
161 
162 	if (rdev->num_crtc && rdev->mode_info.mode_config_initialized) {
163 		list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
164 			radeon_crtc = to_radeon_crtc(crtc);
165 			if (crtc->enabled && radeon_crtc->enabled && radeon_crtc->hw_mode.clock) {
166 				line_time_us = (radeon_crtc->hw_mode.crtc_htotal * 1000) /
167 					radeon_crtc->hw_mode.clock;
168 				vblank_lines = radeon_crtc->hw_mode.crtc_vblank_end -
169 					radeon_crtc->hw_mode.crtc_vdisplay +
170 					(radeon_crtc->v_border * 2);
171 				vblank_time_us = vblank_lines * line_time_us;
172 				break;
173 			}
174 		}
175 	}
176 
177 	return vblank_time_us;
178 }
179 
180 u32 r600_dpm_get_vrefresh(struct radeon_device *rdev)
181 {
182 	struct drm_device *dev = rdev->ddev;
183 	struct drm_crtc *crtc;
184 	struct radeon_crtc *radeon_crtc;
185 	u32 vrefresh = 0;
186 
187 	if (rdev->num_crtc && rdev->mode_info.mode_config_initialized) {
188 		list_for_each_entry(crtc, &dev->mode_config.crtc_list, head) {
189 			radeon_crtc = to_radeon_crtc(crtc);
190 			if (crtc->enabled && radeon_crtc->enabled && radeon_crtc->hw_mode.clock) {
191 				vrefresh = drm_mode_vrefresh(&radeon_crtc->hw_mode);
192 				break;
193 			}
194 		}
195 	}
196 	return vrefresh;
197 }
198 
199 void r600_calculate_u_and_p(u32 i, u32 r_c, u32 p_b,
200 			    u32 *p, u32 *u)
201 {
202 	u32 b_c = 0;
203 	u32 i_c;
204 	u32 tmp;
205 
206 	i_c = (i * r_c) / 100;
207 	tmp = i_c >> p_b;
208 
209 	while (tmp) {
210 		b_c++;
211 		tmp >>= 1;
212 	}
213 
214 	*u = (b_c + 1) / 2;
215 	*p = i_c / (1 << (2 * (*u)));
216 }
217 
218 int r600_calculate_at(u32 t, u32 h, u32 fh, u32 fl, u32 *tl, u32 *th)
219 {
220 	u32 k, a, ah, al;
221 	u32 t1;
222 
223 	if ((fl == 0) || (fh == 0) || (fl > fh))
224 		return -EINVAL;
225 
226 	k = (100 * fh) / fl;
227 	t1 = (t * (k - 100));
228 	a = (1000 * (100 * h + t1)) / (10000 + (t1 / 100));
229 	a = (a + 5) / 10;
230 	ah = ((a * t) + 5000) / 10000;
231 	al = a - ah;
232 
233 	*th = t - ah;
234 	*tl = t + al;
235 
236 	return 0;
237 }
238 
239 void r600_gfx_clockgating_enable(struct radeon_device *rdev, bool enable)
240 {
241 	int i;
242 
243 	if (enable) {
244 		WREG32_P(SCLK_PWRMGT_CNTL, DYN_GFX_CLK_OFF_EN, ~DYN_GFX_CLK_OFF_EN);
245 	} else {
246 		WREG32_P(SCLK_PWRMGT_CNTL, 0, ~DYN_GFX_CLK_OFF_EN);
247 
248 		WREG32(CG_RLC_REQ_AND_RSP, 0x2);
249 
250 		for (i = 0; i < rdev->usec_timeout; i++) {
251 			if (((RREG32(CG_RLC_REQ_AND_RSP) & CG_RLC_RSP_TYPE_MASK) >> CG_RLC_RSP_TYPE_SHIFT) == 1)
252 				break;
253 			udelay(1);
254 		}
255 
256 		WREG32(CG_RLC_REQ_AND_RSP, 0x0);
257 
258 		WREG32(GRBM_PWR_CNTL, 0x1);
259 		RREG32(GRBM_PWR_CNTL);
260 	}
261 }
262 
263 void r600_dynamicpm_enable(struct radeon_device *rdev, bool enable)
264 {
265 	if (enable)
266 		WREG32_P(GENERAL_PWRMGT, GLOBAL_PWRMGT_EN, ~GLOBAL_PWRMGT_EN);
267 	else
268 		WREG32_P(GENERAL_PWRMGT, 0, ~GLOBAL_PWRMGT_EN);
269 }
270 
271 void r600_enable_thermal_protection(struct radeon_device *rdev, bool enable)
272 {
273 	if (enable)
274 		WREG32_P(GENERAL_PWRMGT, 0, ~THERMAL_PROTECTION_DIS);
275 	else
276 		WREG32_P(GENERAL_PWRMGT, THERMAL_PROTECTION_DIS, ~THERMAL_PROTECTION_DIS);
277 }
278 
279 void r600_enable_acpi_pm(struct radeon_device *rdev)
280 {
281 	WREG32_P(GENERAL_PWRMGT, STATIC_PM_EN, ~STATIC_PM_EN);
282 }
283 
284 void r600_enable_dynamic_pcie_gen2(struct radeon_device *rdev, bool enable)
285 {
286 	if (enable)
287 		WREG32_P(GENERAL_PWRMGT, ENABLE_GEN2PCIE, ~ENABLE_GEN2PCIE);
288 	else
289 		WREG32_P(GENERAL_PWRMGT, 0, ~ENABLE_GEN2PCIE);
290 }
291 
292 bool r600_dynamicpm_enabled(struct radeon_device *rdev)
293 {
294 	if (RREG32(GENERAL_PWRMGT) & GLOBAL_PWRMGT_EN)
295 		return true;
296 	else
297 		return false;
298 }
299 
300 void r600_enable_sclk_control(struct radeon_device *rdev, bool enable)
301 {
302 	if (enable)
303 		WREG32_P(SCLK_PWRMGT_CNTL, 0, ~SCLK_PWRMGT_OFF);
304 	else
305 		WREG32_P(SCLK_PWRMGT_CNTL, SCLK_PWRMGT_OFF, ~SCLK_PWRMGT_OFF);
306 }
307 
308 void r600_enable_mclk_control(struct radeon_device *rdev, bool enable)
309 {
310 	if (enable)
311 		WREG32_P(MCLK_PWRMGT_CNTL, 0, ~MPLL_PWRMGT_OFF);
312 	else
313 		WREG32_P(MCLK_PWRMGT_CNTL, MPLL_PWRMGT_OFF, ~MPLL_PWRMGT_OFF);
314 }
315 
316 void r600_enable_spll_bypass(struct radeon_device *rdev, bool enable)
317 {
318 	if (enable)
319 		WREG32_P(CG_SPLL_FUNC_CNTL, SPLL_BYPASS_EN, ~SPLL_BYPASS_EN);
320 	else
321 		WREG32_P(CG_SPLL_FUNC_CNTL, 0, ~SPLL_BYPASS_EN);
322 }
323 
324 void r600_wait_for_spll_change(struct radeon_device *rdev)
325 {
326 	int i;
327 
328 	for (i = 0; i < rdev->usec_timeout; i++) {
329 		if (RREG32(CG_SPLL_FUNC_CNTL) & SPLL_CHG_STATUS)
330 			break;
331 		udelay(1);
332 	}
333 }
334 
335 void r600_set_bsp(struct radeon_device *rdev, u32 u, u32 p)
336 {
337 	WREG32(CG_BSP, BSP(p) | BSU(u));
338 }
339 
340 void r600_set_at(struct radeon_device *rdev,
341 		 u32 l_to_m, u32 m_to_h,
342 		 u32 h_to_m, u32 m_to_l)
343 {
344 	WREG32(CG_RT, FLS(l_to_m) | FMS(m_to_h));
345 	WREG32(CG_LT, FHS(h_to_m) | FMS(m_to_l));
346 }
347 
348 void r600_set_tc(struct radeon_device *rdev,
349 		 u32 index, u32 u_t, u32 d_t)
350 {
351 	WREG32(CG_FFCT_0 + (index * 4), UTC_0(u_t) | DTC_0(d_t));
352 }
353 
354 void r600_select_td(struct radeon_device *rdev,
355 		    enum r600_td td)
356 {
357 	if (td == R600_TD_AUTO)
358 		WREG32_P(SCLK_PWRMGT_CNTL, 0, ~FIR_FORCE_TREND_SEL);
359 	else
360 		WREG32_P(SCLK_PWRMGT_CNTL, FIR_FORCE_TREND_SEL, ~FIR_FORCE_TREND_SEL);
361 	if (td == R600_TD_UP)
362 		WREG32_P(SCLK_PWRMGT_CNTL, 0, ~FIR_TREND_MODE);
363 	if (td == R600_TD_DOWN)
364 		WREG32_P(SCLK_PWRMGT_CNTL, FIR_TREND_MODE, ~FIR_TREND_MODE);
365 }
366 
367 void r600_set_vrc(struct radeon_device *rdev, u32 vrv)
368 {
369 	WREG32(CG_FTV, vrv);
370 }
371 
372 void r600_set_tpu(struct radeon_device *rdev, u32 u)
373 {
374 	WREG32_P(CG_TPC, TPU(u), ~TPU_MASK);
375 }
376 
377 void r600_set_tpc(struct radeon_device *rdev, u32 c)
378 {
379 	WREG32_P(CG_TPC, TPCC(c), ~TPCC_MASK);
380 }
381 
382 void r600_set_sstu(struct radeon_device *rdev, u32 u)
383 {
384 	WREG32_P(CG_SSP, CG_SSTU(u), ~CG_SSTU_MASK);
385 }
386 
387 void r600_set_sst(struct radeon_device *rdev, u32 t)
388 {
389 	WREG32_P(CG_SSP, CG_SST(t), ~CG_SST_MASK);
390 }
391 
392 void r600_set_git(struct radeon_device *rdev, u32 t)
393 {
394 	WREG32_P(CG_GIT, CG_GICST(t), ~CG_GICST_MASK);
395 }
396 
397 void r600_set_fctu(struct radeon_device *rdev, u32 u)
398 {
399 	WREG32_P(CG_FC_T, FC_TU(u), ~FC_TU_MASK);
400 }
401 
402 void r600_set_fct(struct radeon_device *rdev, u32 t)
403 {
404 	WREG32_P(CG_FC_T, FC_T(t), ~FC_T_MASK);
405 }
406 
407 void r600_set_ctxcgtt3d_rphc(struct radeon_device *rdev, u32 p)
408 {
409 	WREG32_P(CG_CTX_CGTT3D_R, PHC(p), ~PHC_MASK);
410 }
411 
412 void r600_set_ctxcgtt3d_rsdc(struct radeon_device *rdev, u32 s)
413 {
414 	WREG32_P(CG_CTX_CGTT3D_R, SDC(s), ~SDC_MASK);
415 }
416 
417 void r600_set_vddc3d_oorsu(struct radeon_device *rdev, u32 u)
418 {
419 	WREG32_P(CG_VDDC3D_OOR, SU(u), ~SU_MASK);
420 }
421 
422 void r600_set_vddc3d_oorphc(struct radeon_device *rdev, u32 p)
423 {
424 	WREG32_P(CG_VDDC3D_OOR, PHC(p), ~PHC_MASK);
425 }
426 
427 void r600_set_vddc3d_oorsdc(struct radeon_device *rdev, u32 s)
428 {
429 	WREG32_P(CG_VDDC3D_OOR, SDC(s), ~SDC_MASK);
430 }
431 
432 void r600_set_mpll_lock_time(struct radeon_device *rdev, u32 lock_time)
433 {
434 	WREG32_P(MPLL_TIME, MPLL_LOCK_TIME(lock_time), ~MPLL_LOCK_TIME_MASK);
435 }
436 
437 void r600_set_mpll_reset_time(struct radeon_device *rdev, u32 reset_time)
438 {
439 	WREG32_P(MPLL_TIME, MPLL_RESET_TIME(reset_time), ~MPLL_RESET_TIME_MASK);
440 }
441 
442 void r600_engine_clock_entry_enable(struct radeon_device *rdev,
443 				    u32 index, bool enable)
444 {
445 	if (enable)
446 		WREG32_P(SCLK_FREQ_SETTING_STEP_0_PART2 + (index * 4 * 2),
447 			 STEP_0_SPLL_ENTRY_VALID, ~STEP_0_SPLL_ENTRY_VALID);
448 	else
449 		WREG32_P(SCLK_FREQ_SETTING_STEP_0_PART2 + (index * 4 * 2),
450 			 0, ~STEP_0_SPLL_ENTRY_VALID);
451 }
452 
453 void r600_engine_clock_entry_enable_pulse_skipping(struct radeon_device *rdev,
454 						   u32 index, bool enable)
455 {
456 	if (enable)
457 		WREG32_P(SCLK_FREQ_SETTING_STEP_0_PART2 + (index * 4 * 2),
458 			 STEP_0_SPLL_STEP_ENABLE, ~STEP_0_SPLL_STEP_ENABLE);
459 	else
460 		WREG32_P(SCLK_FREQ_SETTING_STEP_0_PART2 + (index * 4 * 2),
461 			 0, ~STEP_0_SPLL_STEP_ENABLE);
462 }
463 
464 void r600_engine_clock_entry_enable_post_divider(struct radeon_device *rdev,
465 						 u32 index, bool enable)
466 {
467 	if (enable)
468 		WREG32_P(SCLK_FREQ_SETTING_STEP_0_PART2 + (index * 4 * 2),
469 			 STEP_0_POST_DIV_EN, ~STEP_0_POST_DIV_EN);
470 	else
471 		WREG32_P(SCLK_FREQ_SETTING_STEP_0_PART2 + (index * 4 * 2),
472 			 0, ~STEP_0_POST_DIV_EN);
473 }
474 
475 void r600_engine_clock_entry_set_post_divider(struct radeon_device *rdev,
476 					      u32 index, u32 divider)
477 {
478 	WREG32_P(SCLK_FREQ_SETTING_STEP_0_PART1 + (index * 4 * 2),
479 		 STEP_0_SPLL_POST_DIV(divider), ~STEP_0_SPLL_POST_DIV_MASK);
480 }
481 
482 void r600_engine_clock_entry_set_reference_divider(struct radeon_device *rdev,
483 						   u32 index, u32 divider)
484 {
485 	WREG32_P(SCLK_FREQ_SETTING_STEP_0_PART1 + (index * 4 * 2),
486 		 STEP_0_SPLL_REF_DIV(divider), ~STEP_0_SPLL_REF_DIV_MASK);
487 }
488 
489 void r600_engine_clock_entry_set_feedback_divider(struct radeon_device *rdev,
490 						  u32 index, u32 divider)
491 {
492 	WREG32_P(SCLK_FREQ_SETTING_STEP_0_PART1 + (index * 4 * 2),
493 		 STEP_0_SPLL_FB_DIV(divider), ~STEP_0_SPLL_FB_DIV_MASK);
494 }
495 
496 void r600_engine_clock_entry_set_step_time(struct radeon_device *rdev,
497 					   u32 index, u32 step_time)
498 {
499 	WREG32_P(SCLK_FREQ_SETTING_STEP_0_PART1 + (index * 4 * 2),
500 		 STEP_0_SPLL_STEP_TIME(step_time), ~STEP_0_SPLL_STEP_TIME_MASK);
501 }
502 
503 void r600_vid_rt_set_ssu(struct radeon_device *rdev, u32 u)
504 {
505 	WREG32_P(VID_RT, SSTU(u), ~SSTU_MASK);
506 }
507 
508 void r600_vid_rt_set_vru(struct radeon_device *rdev, u32 u)
509 {
510 	WREG32_P(VID_RT, VID_CRTU(u), ~VID_CRTU_MASK);
511 }
512 
513 void r600_vid_rt_set_vrt(struct radeon_device *rdev, u32 rt)
514 {
515 	WREG32_P(VID_RT, VID_CRT(rt), ~VID_CRT_MASK);
516 }
517 
518 void r600_voltage_control_enable_pins(struct radeon_device *rdev,
519 				      u64 mask)
520 {
521 	WREG32(LOWER_GPIO_ENABLE, mask & 0xffffffff);
522 	WREG32(UPPER_GPIO_ENABLE, upper_32_bits(mask));
523 }
524 
525 
526 void r600_voltage_control_program_voltages(struct radeon_device *rdev,
527 					   enum r600_power_level index, u64 pins)
528 {
529 	u32 tmp, mask;
530 	u32 ix = 3 - (3 & index);
531 
532 	WREG32(CTXSW_VID_LOWER_GPIO_CNTL + (ix * 4), pins & 0xffffffff);
533 
534 	mask = 7 << (3 * ix);
535 	tmp = RREG32(VID_UPPER_GPIO_CNTL);
536 	tmp = (tmp & ~mask) | ((pins >> (32 - (3 * ix))) & mask);
537 	WREG32(VID_UPPER_GPIO_CNTL, tmp);
538 }
539 
540 void r600_voltage_control_deactivate_static_control(struct radeon_device *rdev,
541 						    u64 mask)
542 {
543 	u32 gpio;
544 
545 	gpio = RREG32(GPIOPAD_MASK);
546 	gpio &= ~mask;
547 	WREG32(GPIOPAD_MASK, gpio);
548 
549 	gpio = RREG32(GPIOPAD_EN);
550 	gpio &= ~mask;
551 	WREG32(GPIOPAD_EN, gpio);
552 
553 	gpio = RREG32(GPIOPAD_A);
554 	gpio &= ~mask;
555 	WREG32(GPIOPAD_A, gpio);
556 }
557 
558 void r600_power_level_enable(struct radeon_device *rdev,
559 			     enum r600_power_level index, bool enable)
560 {
561 	u32 ix = 3 - (3 & index);
562 
563 	if (enable)
564 		WREG32_P(CTXSW_PROFILE_INDEX + (ix * 4), CTXSW_FREQ_STATE_ENABLE,
565 			 ~CTXSW_FREQ_STATE_ENABLE);
566 	else
567 		WREG32_P(CTXSW_PROFILE_INDEX + (ix * 4), 0,
568 			 ~CTXSW_FREQ_STATE_ENABLE);
569 }
570 
571 void r600_power_level_set_voltage_index(struct radeon_device *rdev,
572 					enum r600_power_level index, u32 voltage_index)
573 {
574 	u32 ix = 3 - (3 & index);
575 
576 	WREG32_P(CTXSW_PROFILE_INDEX + (ix * 4),
577 		 CTXSW_FREQ_VIDS_CFG_INDEX(voltage_index), ~CTXSW_FREQ_VIDS_CFG_INDEX_MASK);
578 }
579 
580 void r600_power_level_set_mem_clock_index(struct radeon_device *rdev,
581 					  enum r600_power_level index, u32 mem_clock_index)
582 {
583 	u32 ix = 3 - (3 & index);
584 
585 	WREG32_P(CTXSW_PROFILE_INDEX + (ix * 4),
586 		 CTXSW_FREQ_MCLK_CFG_INDEX(mem_clock_index), ~CTXSW_FREQ_MCLK_CFG_INDEX_MASK);
587 }
588 
589 void r600_power_level_set_eng_clock_index(struct radeon_device *rdev,
590 					  enum r600_power_level index, u32 eng_clock_index)
591 {
592 	u32 ix = 3 - (3 & index);
593 
594 	WREG32_P(CTXSW_PROFILE_INDEX + (ix * 4),
595 		 CTXSW_FREQ_SCLK_CFG_INDEX(eng_clock_index), ~CTXSW_FREQ_SCLK_CFG_INDEX_MASK);
596 }
597 
598 void r600_power_level_set_watermark_id(struct radeon_device *rdev,
599 				       enum r600_power_level index,
600 				       enum r600_display_watermark watermark_id)
601 {
602 	u32 ix = 3 - (3 & index);
603 	u32 tmp = 0;
604 
605 	if (watermark_id == R600_DISPLAY_WATERMARK_HIGH)
606 		tmp = CTXSW_FREQ_DISPLAY_WATERMARK;
607 	WREG32_P(CTXSW_PROFILE_INDEX + (ix * 4), tmp, ~CTXSW_FREQ_DISPLAY_WATERMARK);
608 }
609 
610 void r600_power_level_set_pcie_gen2(struct radeon_device *rdev,
611 				    enum r600_power_level index, bool compatible)
612 {
613 	u32 ix = 3 - (3 & index);
614 	u32 tmp = 0;
615 
616 	if (compatible)
617 		tmp = CTXSW_FREQ_GEN2PCIE_VOLT;
618 	WREG32_P(CTXSW_PROFILE_INDEX + (ix * 4), tmp, ~CTXSW_FREQ_GEN2PCIE_VOLT);
619 }
620 
621 enum r600_power_level r600_power_level_get_current_index(struct radeon_device *rdev)
622 {
623 	u32 tmp;
624 
625 	tmp = RREG32(TARGET_AND_CURRENT_PROFILE_INDEX) & CURRENT_PROFILE_INDEX_MASK;
626 	tmp >>= CURRENT_PROFILE_INDEX_SHIFT;
627 	return tmp;
628 }
629 
630 enum r600_power_level r600_power_level_get_target_index(struct radeon_device *rdev)
631 {
632 	u32 tmp;
633 
634 	tmp = RREG32(TARGET_AND_CURRENT_PROFILE_INDEX) & TARGET_PROFILE_INDEX_MASK;
635 	tmp >>= TARGET_PROFILE_INDEX_SHIFT;
636 	return tmp;
637 }
638 
639 void r600_power_level_set_enter_index(struct radeon_device *rdev,
640 				      enum r600_power_level index)
641 {
642 	WREG32_P(TARGET_AND_CURRENT_PROFILE_INDEX, DYN_PWR_ENTER_INDEX(index),
643 		 ~DYN_PWR_ENTER_INDEX_MASK);
644 }
645 
646 void r600_wait_for_power_level_unequal(struct radeon_device *rdev,
647 				       enum r600_power_level index)
648 {
649 	int i;
650 
651 	for (i = 0; i < rdev->usec_timeout; i++) {
652 		if (r600_power_level_get_target_index(rdev) != index)
653 			break;
654 		udelay(1);
655 	}
656 
657 	for (i = 0; i < rdev->usec_timeout; i++) {
658 		if (r600_power_level_get_current_index(rdev) != index)
659 			break;
660 		udelay(1);
661 	}
662 }
663 
664 void r600_wait_for_power_level(struct radeon_device *rdev,
665 			       enum r600_power_level index)
666 {
667 	int i;
668 
669 	for (i = 0; i < rdev->usec_timeout; i++) {
670 		if (r600_power_level_get_target_index(rdev) == index)
671 			break;
672 		udelay(1);
673 	}
674 
675 	for (i = 0; i < rdev->usec_timeout; i++) {
676 		if (r600_power_level_get_current_index(rdev) == index)
677 			break;
678 		udelay(1);
679 	}
680 }
681 
682 void r600_start_dpm(struct radeon_device *rdev)
683 {
684 	r600_enable_sclk_control(rdev, false);
685 	r600_enable_mclk_control(rdev, false);
686 
687 	r600_dynamicpm_enable(rdev, true);
688 
689 	radeon_wait_for_vblank(rdev, 0);
690 	radeon_wait_for_vblank(rdev, 1);
691 
692 	r600_enable_spll_bypass(rdev, true);
693 	r600_wait_for_spll_change(rdev);
694 	r600_enable_spll_bypass(rdev, false);
695 	r600_wait_for_spll_change(rdev);
696 
697 	r600_enable_spll_bypass(rdev, true);
698 	r600_wait_for_spll_change(rdev);
699 	r600_enable_spll_bypass(rdev, false);
700 	r600_wait_for_spll_change(rdev);
701 
702 	r600_enable_sclk_control(rdev, true);
703 	r600_enable_mclk_control(rdev, true);
704 }
705 
706 void r600_stop_dpm(struct radeon_device *rdev)
707 {
708 	r600_dynamicpm_enable(rdev, false);
709 }
710 
711 int r600_dpm_pre_set_power_state(struct radeon_device *rdev)
712 {
713 	return 0;
714 }
715 
716 void r600_dpm_post_set_power_state(struct radeon_device *rdev)
717 {
718 
719 }
720 
721 bool r600_is_uvd_state(u32 class, u32 class2)
722 {
723 	if (class & ATOM_PPLIB_CLASSIFICATION_UVDSTATE)
724 		return true;
725 	if (class & ATOM_PPLIB_CLASSIFICATION_HD2STATE)
726 		return true;
727 	if (class & ATOM_PPLIB_CLASSIFICATION_HDSTATE)
728 		return true;
729 	if (class & ATOM_PPLIB_CLASSIFICATION_SDSTATE)
730 		return true;
731 	if (class2 & ATOM_PPLIB_CLASSIFICATION2_MVC)
732 		return true;
733 	return false;
734 }
735 
736 static int r600_set_thermal_temperature_range(struct radeon_device *rdev,
737 					      int min_temp, int max_temp)
738 {
739 	int low_temp = 0 * 1000;
740 	int high_temp = 255 * 1000;
741 
742 	if (low_temp < min_temp)
743 		low_temp = min_temp;
744 	if (high_temp > max_temp)
745 		high_temp = max_temp;
746 	if (high_temp < low_temp) {
747 		DRM_ERROR("invalid thermal range: %d - %d\n", low_temp, high_temp);
748 		return -EINVAL;
749 	}
750 
751 	WREG32_P(CG_THERMAL_INT, DIG_THERM_INTH(high_temp / 1000), ~DIG_THERM_INTH_MASK);
752 	WREG32_P(CG_THERMAL_INT, DIG_THERM_INTL(low_temp / 1000), ~DIG_THERM_INTL_MASK);
753 	WREG32_P(CG_THERMAL_CTRL, DIG_THERM_DPM(high_temp / 1000), ~DIG_THERM_DPM_MASK);
754 
755 	rdev->pm.dpm.thermal.min_temp = low_temp;
756 	rdev->pm.dpm.thermal.max_temp = high_temp;
757 
758 	return 0;
759 }
760 
761 bool r600_is_internal_thermal_sensor(enum radeon_int_thermal_type sensor)
762 {
763 	switch (sensor) {
764 	case THERMAL_TYPE_RV6XX:
765 	case THERMAL_TYPE_RV770:
766 	case THERMAL_TYPE_EVERGREEN:
767 	case THERMAL_TYPE_SUMO:
768 	case THERMAL_TYPE_NI:
769 	case THERMAL_TYPE_SI:
770 	case THERMAL_TYPE_CI:
771 	case THERMAL_TYPE_KV:
772 		return true;
773 	case THERMAL_TYPE_ADT7473_WITH_INTERNAL:
774 	case THERMAL_TYPE_EMC2103_WITH_INTERNAL:
775 		return false; /* need special handling */
776 	case THERMAL_TYPE_NONE:
777 	case THERMAL_TYPE_EXTERNAL:
778 	case THERMAL_TYPE_EXTERNAL_GPIO:
779 	default:
780 		return false;
781 	}
782 }
783 
784 int r600_dpm_late_enable(struct radeon_device *rdev)
785 {
786 	int ret;
787 
788 	if (rdev->irq.installed &&
789 	    r600_is_internal_thermal_sensor(rdev->pm.int_thermal_type)) {
790 		ret = r600_set_thermal_temperature_range(rdev, R600_TEMP_RANGE_MIN, R600_TEMP_RANGE_MAX);
791 		if (ret)
792 			return ret;
793 		rdev->irq.dpm_thermal = true;
794 		radeon_irq_set(rdev);
795 	}
796 
797 	return 0;
798 }
799 
800 union power_info {
801 	struct _ATOM_POWERPLAY_INFO info;
802 	struct _ATOM_POWERPLAY_INFO_V2 info_2;
803 	struct _ATOM_POWERPLAY_INFO_V3 info_3;
804 	struct _ATOM_PPLIB_POWERPLAYTABLE pplib;
805 	struct _ATOM_PPLIB_POWERPLAYTABLE2 pplib2;
806 	struct _ATOM_PPLIB_POWERPLAYTABLE3 pplib3;
807 	struct _ATOM_PPLIB_POWERPLAYTABLE4 pplib4;
808 	struct _ATOM_PPLIB_POWERPLAYTABLE5 pplib5;
809 };
810 
811 union fan_info {
812 	struct _ATOM_PPLIB_FANTABLE fan;
813 	struct _ATOM_PPLIB_FANTABLE2 fan2;
814 	struct _ATOM_PPLIB_FANTABLE3 fan3;
815 };
816 
817 static int r600_parse_clk_voltage_dep_table(struct radeon_clock_voltage_dependency_table *radeon_table,
818 					    ATOM_PPLIB_Clock_Voltage_Dependency_Table *atom_table)
819 {
820 	u32 size = atom_table->ucNumEntries *
821 		sizeof(struct radeon_clock_voltage_dependency_entry);
822 	int i;
823 	ATOM_PPLIB_Clock_Voltage_Dependency_Record *entry;
824 
825 	radeon_table->entries = kzalloc(size, GFP_KERNEL);
826 	if (!radeon_table->entries)
827 		return -ENOMEM;
828 
829 	entry = &atom_table->entries[0];
830 	for (i = 0; i < atom_table->ucNumEntries; i++) {
831 		radeon_table->entries[i].clk = le16_to_cpu(entry->usClockLow) |
832 			(entry->ucClockHigh << 16);
833 		radeon_table->entries[i].v = le16_to_cpu(entry->usVoltage);
834 		entry = (ATOM_PPLIB_Clock_Voltage_Dependency_Record *)
835 			((u8 *)entry + sizeof(ATOM_PPLIB_Clock_Voltage_Dependency_Record));
836 	}
837 	radeon_table->count = atom_table->ucNumEntries;
838 
839 	return 0;
840 }
841 
842 int r600_get_platform_caps(struct radeon_device *rdev)
843 {
844 	struct radeon_mode_info *mode_info = &rdev->mode_info;
845 	union power_info *power_info;
846 	int index = GetIndexIntoMasterTable(DATA, PowerPlayInfo);
847         u16 data_offset;
848 	u8 frev, crev;
849 
850 	if (!atom_parse_data_header(mode_info->atom_context, index, NULL,
851 				   &frev, &crev, &data_offset))
852 		return -EINVAL;
853 	power_info = (union power_info *)(mode_info->atom_context->bios + data_offset);
854 
855 	rdev->pm.dpm.platform_caps = le32_to_cpu(power_info->pplib.ulPlatformCaps);
856 	rdev->pm.dpm.backbias_response_time = le16_to_cpu(power_info->pplib.usBackbiasTime);
857 	rdev->pm.dpm.voltage_response_time = le16_to_cpu(power_info->pplib.usVoltageTime);
858 
859 	return 0;
860 }
861 
862 /* sizeof(ATOM_PPLIB_EXTENDEDHEADER) */
863 #define SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V2 12
864 #define SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V3 14
865 #define SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V4 16
866 #define SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V5 18
867 #define SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V6 20
868 #define SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V7 22
869 
870 int r600_parse_extended_power_table(struct radeon_device *rdev)
871 {
872 	struct radeon_mode_info *mode_info = &rdev->mode_info;
873 	union power_info *power_info;
874 	union fan_info *fan_info;
875 	ATOM_PPLIB_Clock_Voltage_Dependency_Table *dep_table;
876 	int index = GetIndexIntoMasterTable(DATA, PowerPlayInfo);
877         u16 data_offset;
878 	u8 frev, crev;
879 	int ret, i;
880 
881 	if (!atom_parse_data_header(mode_info->atom_context, index, NULL,
882 				   &frev, &crev, &data_offset))
883 		return -EINVAL;
884 	power_info = (union power_info *)(mode_info->atom_context->bios + data_offset);
885 
886 	/* fan table */
887 	if (le16_to_cpu(power_info->pplib.usTableSize) >=
888 	    sizeof(struct _ATOM_PPLIB_POWERPLAYTABLE3)) {
889 		if (power_info->pplib3.usFanTableOffset) {
890 			fan_info = (union fan_info *)(mode_info->atom_context->bios + data_offset +
891 						      le16_to_cpu(power_info->pplib3.usFanTableOffset));
892 			rdev->pm.dpm.fan.t_hyst = fan_info->fan.ucTHyst;
893 			rdev->pm.dpm.fan.t_min = le16_to_cpu(fan_info->fan.usTMin);
894 			rdev->pm.dpm.fan.t_med = le16_to_cpu(fan_info->fan.usTMed);
895 			rdev->pm.dpm.fan.t_high = le16_to_cpu(fan_info->fan.usTHigh);
896 			rdev->pm.dpm.fan.pwm_min = le16_to_cpu(fan_info->fan.usPWMMin);
897 			rdev->pm.dpm.fan.pwm_med = le16_to_cpu(fan_info->fan.usPWMMed);
898 			rdev->pm.dpm.fan.pwm_high = le16_to_cpu(fan_info->fan.usPWMHigh);
899 			if (fan_info->fan.ucFanTableFormat >= 2)
900 				rdev->pm.dpm.fan.t_max = le16_to_cpu(fan_info->fan2.usTMax);
901 			else
902 				rdev->pm.dpm.fan.t_max = 10900;
903 			rdev->pm.dpm.fan.cycle_delay = 100000;
904 			if (fan_info->fan.ucFanTableFormat >= 3) {
905 				rdev->pm.dpm.fan.control_mode = fan_info->fan3.ucFanControlMode;
906 				rdev->pm.dpm.fan.default_max_fan_pwm =
907 					le16_to_cpu(fan_info->fan3.usFanPWMMax);
908 				rdev->pm.dpm.fan.default_fan_output_sensitivity = 4836;
909 				rdev->pm.dpm.fan.fan_output_sensitivity =
910 					le16_to_cpu(fan_info->fan3.usFanOutputSensitivity);
911 			}
912 			rdev->pm.dpm.fan.ucode_fan_control = true;
913 		}
914 	}
915 
916 	/* clock dependancy tables, shedding tables */
917 	if (le16_to_cpu(power_info->pplib.usTableSize) >=
918 	    sizeof(struct _ATOM_PPLIB_POWERPLAYTABLE4)) {
919 		if (power_info->pplib4.usVddcDependencyOnSCLKOffset) {
920 			dep_table = (ATOM_PPLIB_Clock_Voltage_Dependency_Table *)
921 				(mode_info->atom_context->bios + data_offset +
922 				 le16_to_cpu(power_info->pplib4.usVddcDependencyOnSCLKOffset));
923 			ret = r600_parse_clk_voltage_dep_table(&rdev->pm.dpm.dyn_state.vddc_dependency_on_sclk,
924 							       dep_table);
925 			if (ret)
926 				return ret;
927 		}
928 		if (power_info->pplib4.usVddciDependencyOnMCLKOffset) {
929 			dep_table = (ATOM_PPLIB_Clock_Voltage_Dependency_Table *)
930 				(mode_info->atom_context->bios + data_offset +
931 				 le16_to_cpu(power_info->pplib4.usVddciDependencyOnMCLKOffset));
932 			ret = r600_parse_clk_voltage_dep_table(&rdev->pm.dpm.dyn_state.vddci_dependency_on_mclk,
933 							       dep_table);
934 			if (ret) {
935 				kfree(rdev->pm.dpm.dyn_state.vddc_dependency_on_sclk.entries);
936 				return ret;
937 			}
938 		}
939 		if (power_info->pplib4.usVddcDependencyOnMCLKOffset) {
940 			dep_table = (ATOM_PPLIB_Clock_Voltage_Dependency_Table *)
941 				(mode_info->atom_context->bios + data_offset +
942 				 le16_to_cpu(power_info->pplib4.usVddcDependencyOnMCLKOffset));
943 			ret = r600_parse_clk_voltage_dep_table(&rdev->pm.dpm.dyn_state.vddc_dependency_on_mclk,
944 							       dep_table);
945 			if (ret) {
946 				kfree(rdev->pm.dpm.dyn_state.vddc_dependency_on_sclk.entries);
947 				kfree(rdev->pm.dpm.dyn_state.vddci_dependency_on_mclk.entries);
948 				return ret;
949 			}
950 		}
951 		if (power_info->pplib4.usMvddDependencyOnMCLKOffset) {
952 			dep_table = (ATOM_PPLIB_Clock_Voltage_Dependency_Table *)
953 				(mode_info->atom_context->bios + data_offset +
954 				 le16_to_cpu(power_info->pplib4.usMvddDependencyOnMCLKOffset));
955 			ret = r600_parse_clk_voltage_dep_table(&rdev->pm.dpm.dyn_state.mvdd_dependency_on_mclk,
956 							       dep_table);
957 			if (ret) {
958 				kfree(rdev->pm.dpm.dyn_state.vddc_dependency_on_sclk.entries);
959 				kfree(rdev->pm.dpm.dyn_state.vddci_dependency_on_mclk.entries);
960 				kfree(rdev->pm.dpm.dyn_state.vddc_dependency_on_mclk.entries);
961 				return ret;
962 			}
963 		}
964 		if (power_info->pplib4.usMaxClockVoltageOnDCOffset) {
965 			ATOM_PPLIB_Clock_Voltage_Limit_Table *clk_v =
966 				(ATOM_PPLIB_Clock_Voltage_Limit_Table *)
967 				(mode_info->atom_context->bios + data_offset +
968 				 le16_to_cpu(power_info->pplib4.usMaxClockVoltageOnDCOffset));
969 			if (clk_v->ucNumEntries) {
970 				rdev->pm.dpm.dyn_state.max_clock_voltage_on_dc.sclk =
971 					le16_to_cpu(clk_v->entries[0].usSclkLow) |
972 					(clk_v->entries[0].ucSclkHigh << 16);
973 				rdev->pm.dpm.dyn_state.max_clock_voltage_on_dc.mclk =
974 					le16_to_cpu(clk_v->entries[0].usMclkLow) |
975 					(clk_v->entries[0].ucMclkHigh << 16);
976 				rdev->pm.dpm.dyn_state.max_clock_voltage_on_dc.vddc =
977 					le16_to_cpu(clk_v->entries[0].usVddc);
978 				rdev->pm.dpm.dyn_state.max_clock_voltage_on_dc.vddci =
979 					le16_to_cpu(clk_v->entries[0].usVddci);
980 			}
981 		}
982 		if (power_info->pplib4.usVddcPhaseShedLimitsTableOffset) {
983 			ATOM_PPLIB_PhaseSheddingLimits_Table *psl =
984 				(ATOM_PPLIB_PhaseSheddingLimits_Table *)
985 				(mode_info->atom_context->bios + data_offset +
986 				 le16_to_cpu(power_info->pplib4.usVddcPhaseShedLimitsTableOffset));
987 			ATOM_PPLIB_PhaseSheddingLimits_Record *entry;
988 
989 			rdev->pm.dpm.dyn_state.phase_shedding_limits_table.entries =
990 				kzalloc(psl->ucNumEntries *
991 					sizeof(struct radeon_phase_shedding_limits_entry),
992 					GFP_KERNEL);
993 			if (!rdev->pm.dpm.dyn_state.phase_shedding_limits_table.entries) {
994 				r600_free_extended_power_table(rdev);
995 				return -ENOMEM;
996 			}
997 
998 			entry = &psl->entries[0];
999 			for (i = 0; i < psl->ucNumEntries; i++) {
1000 				rdev->pm.dpm.dyn_state.phase_shedding_limits_table.entries[i].sclk =
1001 					le16_to_cpu(entry->usSclkLow) | (entry->ucSclkHigh << 16);
1002 				rdev->pm.dpm.dyn_state.phase_shedding_limits_table.entries[i].mclk =
1003 					le16_to_cpu(entry->usMclkLow) | (entry->ucMclkHigh << 16);
1004 				rdev->pm.dpm.dyn_state.phase_shedding_limits_table.entries[i].voltage =
1005 					le16_to_cpu(entry->usVoltage);
1006 				entry = (ATOM_PPLIB_PhaseSheddingLimits_Record *)
1007 					((u8 *)entry + sizeof(ATOM_PPLIB_PhaseSheddingLimits_Record));
1008 			}
1009 			rdev->pm.dpm.dyn_state.phase_shedding_limits_table.count =
1010 				psl->ucNumEntries;
1011 		}
1012 	}
1013 
1014 	/* cac data */
1015 	if (le16_to_cpu(power_info->pplib.usTableSize) >=
1016 	    sizeof(struct _ATOM_PPLIB_POWERPLAYTABLE5)) {
1017 		rdev->pm.dpm.tdp_limit = le32_to_cpu(power_info->pplib5.ulTDPLimit);
1018 		rdev->pm.dpm.near_tdp_limit = le32_to_cpu(power_info->pplib5.ulNearTDPLimit);
1019 		rdev->pm.dpm.near_tdp_limit_adjusted = rdev->pm.dpm.near_tdp_limit;
1020 		rdev->pm.dpm.tdp_od_limit = le16_to_cpu(power_info->pplib5.usTDPODLimit);
1021 		if (rdev->pm.dpm.tdp_od_limit)
1022 			rdev->pm.dpm.power_control = true;
1023 		else
1024 			rdev->pm.dpm.power_control = false;
1025 		rdev->pm.dpm.tdp_adjustment = 0;
1026 		rdev->pm.dpm.sq_ramping_threshold = le32_to_cpu(power_info->pplib5.ulSQRampingThreshold);
1027 		rdev->pm.dpm.cac_leakage = le32_to_cpu(power_info->pplib5.ulCACLeakage);
1028 		rdev->pm.dpm.load_line_slope = le16_to_cpu(power_info->pplib5.usLoadLineSlope);
1029 		if (power_info->pplib5.usCACLeakageTableOffset) {
1030 			ATOM_PPLIB_CAC_Leakage_Table *cac_table =
1031 				(ATOM_PPLIB_CAC_Leakage_Table *)
1032 				(mode_info->atom_context->bios + data_offset +
1033 				 le16_to_cpu(power_info->pplib5.usCACLeakageTableOffset));
1034 			ATOM_PPLIB_CAC_Leakage_Record *entry;
1035 			u32 size = cac_table->ucNumEntries * sizeof(struct radeon_cac_leakage_table);
1036 			rdev->pm.dpm.dyn_state.cac_leakage_table.entries = kzalloc(size, GFP_KERNEL);
1037 			if (!rdev->pm.dpm.dyn_state.cac_leakage_table.entries) {
1038 				r600_free_extended_power_table(rdev);
1039 				return -ENOMEM;
1040 			}
1041 			entry = &cac_table->entries[0];
1042 			for (i = 0; i < cac_table->ucNumEntries; i++) {
1043 				if (rdev->pm.dpm.platform_caps & ATOM_PP_PLATFORM_CAP_EVV) {
1044 					rdev->pm.dpm.dyn_state.cac_leakage_table.entries[i].vddc1 =
1045 						le16_to_cpu(entry->usVddc1);
1046 					rdev->pm.dpm.dyn_state.cac_leakage_table.entries[i].vddc2 =
1047 						le16_to_cpu(entry->usVddc2);
1048 					rdev->pm.dpm.dyn_state.cac_leakage_table.entries[i].vddc3 =
1049 						le16_to_cpu(entry->usVddc3);
1050 				} else {
1051 					rdev->pm.dpm.dyn_state.cac_leakage_table.entries[i].vddc =
1052 						le16_to_cpu(entry->usVddc);
1053 					rdev->pm.dpm.dyn_state.cac_leakage_table.entries[i].leakage =
1054 						le32_to_cpu(entry->ulLeakageValue);
1055 				}
1056 				entry = (ATOM_PPLIB_CAC_Leakage_Record *)
1057 					((u8 *)entry + sizeof(ATOM_PPLIB_CAC_Leakage_Record));
1058 			}
1059 			rdev->pm.dpm.dyn_state.cac_leakage_table.count = cac_table->ucNumEntries;
1060 		}
1061 	}
1062 
1063 	/* ext tables */
1064 	if (le16_to_cpu(power_info->pplib.usTableSize) >=
1065 	    sizeof(struct _ATOM_PPLIB_POWERPLAYTABLE3)) {
1066 		ATOM_PPLIB_EXTENDEDHEADER *ext_hdr = (ATOM_PPLIB_EXTENDEDHEADER *)
1067 			(mode_info->atom_context->bios + data_offset +
1068 			 le16_to_cpu(power_info->pplib3.usExtendendedHeaderOffset));
1069 		if ((le16_to_cpu(ext_hdr->usSize) >= SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V2) &&
1070 			ext_hdr->usVCETableOffset) {
1071 			VCEClockInfoArray *array = (VCEClockInfoArray *)
1072 				(mode_info->atom_context->bios + data_offset +
1073                                  le16_to_cpu(ext_hdr->usVCETableOffset) + 1);
1074 			ATOM_PPLIB_VCE_Clock_Voltage_Limit_Table *limits =
1075 				(ATOM_PPLIB_VCE_Clock_Voltage_Limit_Table *)
1076 				(mode_info->atom_context->bios + data_offset +
1077 				 le16_to_cpu(ext_hdr->usVCETableOffset) + 1 +
1078 				 1 + array->ucNumEntries * sizeof(VCEClockInfo));
1079 			ATOM_PPLIB_VCE_State_Table *states =
1080 				(ATOM_PPLIB_VCE_State_Table *)
1081 				(mode_info->atom_context->bios + data_offset +
1082 				 le16_to_cpu(ext_hdr->usVCETableOffset) + 1 +
1083 				 1 + (array->ucNumEntries * sizeof (VCEClockInfo)) +
1084 				 1 + (limits->numEntries * sizeof(ATOM_PPLIB_VCE_Clock_Voltage_Limit_Record)));
1085 			ATOM_PPLIB_VCE_Clock_Voltage_Limit_Record *entry;
1086 			ATOM_PPLIB_VCE_State_Record *state_entry;
1087 			VCEClockInfo *vce_clk;
1088 			u32 size = limits->numEntries *
1089 				sizeof(struct radeon_vce_clock_voltage_dependency_entry);
1090 			rdev->pm.dpm.dyn_state.vce_clock_voltage_dependency_table.entries =
1091 				kzalloc(size, GFP_KERNEL);
1092 			if (!rdev->pm.dpm.dyn_state.vce_clock_voltage_dependency_table.entries) {
1093 				r600_free_extended_power_table(rdev);
1094 				return -ENOMEM;
1095 			}
1096 			rdev->pm.dpm.dyn_state.vce_clock_voltage_dependency_table.count =
1097 				limits->numEntries;
1098 			entry = &limits->entries[0];
1099 			state_entry = &states->entries[0];
1100 			for (i = 0; i < limits->numEntries; i++) {
1101 				vce_clk = (VCEClockInfo *)
1102 					((u8 *)&array->entries[0] +
1103 					 (entry->ucVCEClockInfoIndex * sizeof(VCEClockInfo)));
1104 				rdev->pm.dpm.dyn_state.vce_clock_voltage_dependency_table.entries[i].evclk =
1105 					le16_to_cpu(vce_clk->usEVClkLow) | (vce_clk->ucEVClkHigh << 16);
1106 				rdev->pm.dpm.dyn_state.vce_clock_voltage_dependency_table.entries[i].ecclk =
1107 					le16_to_cpu(vce_clk->usECClkLow) | (vce_clk->ucECClkHigh << 16);
1108 				rdev->pm.dpm.dyn_state.vce_clock_voltage_dependency_table.entries[i].v =
1109 					le16_to_cpu(entry->usVoltage);
1110 				entry = (ATOM_PPLIB_VCE_Clock_Voltage_Limit_Record *)
1111 					((u8 *)entry + sizeof(ATOM_PPLIB_VCE_Clock_Voltage_Limit_Record));
1112 			}
1113 			for (i = 0; i < states->numEntries; i++) {
1114 				if (i >= RADEON_MAX_VCE_LEVELS)
1115 					break;
1116 				vce_clk = (VCEClockInfo *)
1117 					((u8 *)&array->entries[0] +
1118 					 (state_entry->ucVCEClockInfoIndex * sizeof(VCEClockInfo)));
1119 				rdev->pm.dpm.vce_states[i].evclk =
1120 					le16_to_cpu(vce_clk->usEVClkLow) | (vce_clk->ucEVClkHigh << 16);
1121 				rdev->pm.dpm.vce_states[i].ecclk =
1122 					le16_to_cpu(vce_clk->usECClkLow) | (vce_clk->ucECClkHigh << 16);
1123 				rdev->pm.dpm.vce_states[i].clk_idx =
1124 					state_entry->ucClockInfoIndex & 0x3f;
1125 				rdev->pm.dpm.vce_states[i].pstate =
1126 					(state_entry->ucClockInfoIndex & 0xc0) >> 6;
1127 				state_entry = (ATOM_PPLIB_VCE_State_Record *)
1128 					((u8 *)state_entry + sizeof(ATOM_PPLIB_VCE_State_Record));
1129 			}
1130 		}
1131 		if ((le16_to_cpu(ext_hdr->usSize) >= SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V3) &&
1132 			ext_hdr->usUVDTableOffset) {
1133 			UVDClockInfoArray *array = (UVDClockInfoArray *)
1134 				(mode_info->atom_context->bios + data_offset +
1135 				 le16_to_cpu(ext_hdr->usUVDTableOffset) + 1);
1136 			ATOM_PPLIB_UVD_Clock_Voltage_Limit_Table *limits =
1137 				(ATOM_PPLIB_UVD_Clock_Voltage_Limit_Table *)
1138 				(mode_info->atom_context->bios + data_offset +
1139 				 le16_to_cpu(ext_hdr->usUVDTableOffset) + 1 +
1140 				 1 + (array->ucNumEntries * sizeof (UVDClockInfo)));
1141 			ATOM_PPLIB_UVD_Clock_Voltage_Limit_Record *entry;
1142 			u32 size = limits->numEntries *
1143 				sizeof(struct radeon_uvd_clock_voltage_dependency_entry);
1144 			rdev->pm.dpm.dyn_state.uvd_clock_voltage_dependency_table.entries =
1145 				kzalloc(size, GFP_KERNEL);
1146 			if (!rdev->pm.dpm.dyn_state.uvd_clock_voltage_dependency_table.entries) {
1147 				r600_free_extended_power_table(rdev);
1148 				return -ENOMEM;
1149 			}
1150 			rdev->pm.dpm.dyn_state.uvd_clock_voltage_dependency_table.count =
1151 				limits->numEntries;
1152 			entry = &limits->entries[0];
1153 			for (i = 0; i < limits->numEntries; i++) {
1154 				UVDClockInfo *uvd_clk = (UVDClockInfo *)
1155 					((u8 *)&array->entries[0] +
1156 					 (entry->ucUVDClockInfoIndex * sizeof(UVDClockInfo)));
1157 				rdev->pm.dpm.dyn_state.uvd_clock_voltage_dependency_table.entries[i].vclk =
1158 					le16_to_cpu(uvd_clk->usVClkLow) | (uvd_clk->ucVClkHigh << 16);
1159 				rdev->pm.dpm.dyn_state.uvd_clock_voltage_dependency_table.entries[i].dclk =
1160 					le16_to_cpu(uvd_clk->usDClkLow) | (uvd_clk->ucDClkHigh << 16);
1161 				rdev->pm.dpm.dyn_state.uvd_clock_voltage_dependency_table.entries[i].v =
1162 					le16_to_cpu(entry->usVoltage);
1163 				entry = (ATOM_PPLIB_UVD_Clock_Voltage_Limit_Record *)
1164 					((u8 *)entry + sizeof(ATOM_PPLIB_UVD_Clock_Voltage_Limit_Record));
1165 			}
1166 		}
1167 		if ((le16_to_cpu(ext_hdr->usSize) >= SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V4) &&
1168 			ext_hdr->usSAMUTableOffset) {
1169 			ATOM_PPLIB_SAMClk_Voltage_Limit_Table *limits =
1170 				(ATOM_PPLIB_SAMClk_Voltage_Limit_Table *)
1171 				(mode_info->atom_context->bios + data_offset +
1172 				 le16_to_cpu(ext_hdr->usSAMUTableOffset) + 1);
1173 			ATOM_PPLIB_SAMClk_Voltage_Limit_Record *entry;
1174 			u32 size = limits->numEntries *
1175 				sizeof(struct radeon_clock_voltage_dependency_entry);
1176 			rdev->pm.dpm.dyn_state.samu_clock_voltage_dependency_table.entries =
1177 				kzalloc(size, GFP_KERNEL);
1178 			if (!rdev->pm.dpm.dyn_state.samu_clock_voltage_dependency_table.entries) {
1179 				r600_free_extended_power_table(rdev);
1180 				return -ENOMEM;
1181 			}
1182 			rdev->pm.dpm.dyn_state.samu_clock_voltage_dependency_table.count =
1183 				limits->numEntries;
1184 			entry = &limits->entries[0];
1185 			for (i = 0; i < limits->numEntries; i++) {
1186 				rdev->pm.dpm.dyn_state.samu_clock_voltage_dependency_table.entries[i].clk =
1187 					le16_to_cpu(entry->usSAMClockLow) | (entry->ucSAMClockHigh << 16);
1188 				rdev->pm.dpm.dyn_state.samu_clock_voltage_dependency_table.entries[i].v =
1189 					le16_to_cpu(entry->usVoltage);
1190 				entry = (ATOM_PPLIB_SAMClk_Voltage_Limit_Record *)
1191 					((u8 *)entry + sizeof(ATOM_PPLIB_SAMClk_Voltage_Limit_Record));
1192 			}
1193 		}
1194 		if ((le16_to_cpu(ext_hdr->usSize) >= SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V5) &&
1195 		    ext_hdr->usPPMTableOffset) {
1196 			ATOM_PPLIB_PPM_Table *ppm = (ATOM_PPLIB_PPM_Table *)
1197 				(mode_info->atom_context->bios + data_offset +
1198 				 le16_to_cpu(ext_hdr->usPPMTableOffset));
1199 			rdev->pm.dpm.dyn_state.ppm_table =
1200 				kzalloc(sizeof(struct radeon_ppm_table), GFP_KERNEL);
1201 			if (!rdev->pm.dpm.dyn_state.ppm_table) {
1202 				r600_free_extended_power_table(rdev);
1203 				return -ENOMEM;
1204 			}
1205 			rdev->pm.dpm.dyn_state.ppm_table->ppm_design = ppm->ucPpmDesign;
1206 			rdev->pm.dpm.dyn_state.ppm_table->cpu_core_number =
1207 				le16_to_cpu(ppm->usCpuCoreNumber);
1208 			rdev->pm.dpm.dyn_state.ppm_table->platform_tdp =
1209 				le32_to_cpu(ppm->ulPlatformTDP);
1210 			rdev->pm.dpm.dyn_state.ppm_table->small_ac_platform_tdp =
1211 				le32_to_cpu(ppm->ulSmallACPlatformTDP);
1212 			rdev->pm.dpm.dyn_state.ppm_table->platform_tdc =
1213 				le32_to_cpu(ppm->ulPlatformTDC);
1214 			rdev->pm.dpm.dyn_state.ppm_table->small_ac_platform_tdc =
1215 				le32_to_cpu(ppm->ulSmallACPlatformTDC);
1216 			rdev->pm.dpm.dyn_state.ppm_table->apu_tdp =
1217 				le32_to_cpu(ppm->ulApuTDP);
1218 			rdev->pm.dpm.dyn_state.ppm_table->dgpu_tdp =
1219 				le32_to_cpu(ppm->ulDGpuTDP);
1220 			rdev->pm.dpm.dyn_state.ppm_table->dgpu_ulv_power =
1221 				le32_to_cpu(ppm->ulDGpuUlvPower);
1222 			rdev->pm.dpm.dyn_state.ppm_table->tj_max =
1223 				le32_to_cpu(ppm->ulTjmax);
1224 		}
1225 		if ((le16_to_cpu(ext_hdr->usSize) >= SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V6) &&
1226 			ext_hdr->usACPTableOffset) {
1227 			ATOM_PPLIB_ACPClk_Voltage_Limit_Table *limits =
1228 				(ATOM_PPLIB_ACPClk_Voltage_Limit_Table *)
1229 				(mode_info->atom_context->bios + data_offset +
1230 				 le16_to_cpu(ext_hdr->usACPTableOffset) + 1);
1231 			ATOM_PPLIB_ACPClk_Voltage_Limit_Record *entry;
1232 			u32 size = limits->numEntries *
1233 				sizeof(struct radeon_clock_voltage_dependency_entry);
1234 			rdev->pm.dpm.dyn_state.acp_clock_voltage_dependency_table.entries =
1235 				kzalloc(size, GFP_KERNEL);
1236 			if (!rdev->pm.dpm.dyn_state.acp_clock_voltage_dependency_table.entries) {
1237 				r600_free_extended_power_table(rdev);
1238 				return -ENOMEM;
1239 			}
1240 			rdev->pm.dpm.dyn_state.acp_clock_voltage_dependency_table.count =
1241 				limits->numEntries;
1242 			entry = &limits->entries[0];
1243 			for (i = 0; i < limits->numEntries; i++) {
1244 				rdev->pm.dpm.dyn_state.acp_clock_voltage_dependency_table.entries[i].clk =
1245 					le16_to_cpu(entry->usACPClockLow) | (entry->ucACPClockHigh << 16);
1246 				rdev->pm.dpm.dyn_state.acp_clock_voltage_dependency_table.entries[i].v =
1247 					le16_to_cpu(entry->usVoltage);
1248 				entry = (ATOM_PPLIB_ACPClk_Voltage_Limit_Record *)
1249 					((u8 *)entry + sizeof(ATOM_PPLIB_ACPClk_Voltage_Limit_Record));
1250 			}
1251 		}
1252 		if ((le16_to_cpu(ext_hdr->usSize) >= SIZE_OF_ATOM_PPLIB_EXTENDEDHEADER_V7) &&
1253 			ext_hdr->usPowerTuneTableOffset) {
1254 			u8 rev = *(u8 *)(mode_info->atom_context->bios + data_offset +
1255 					 le16_to_cpu(ext_hdr->usPowerTuneTableOffset));
1256 			ATOM_PowerTune_Table *pt;
1257 			rdev->pm.dpm.dyn_state.cac_tdp_table =
1258 				kzalloc(sizeof(struct radeon_cac_tdp_table), GFP_KERNEL);
1259 			if (!rdev->pm.dpm.dyn_state.cac_tdp_table) {
1260 				r600_free_extended_power_table(rdev);
1261 				return -ENOMEM;
1262 			}
1263 			if (rev > 0) {
1264 				ATOM_PPLIB_POWERTUNE_Table_V1 *ppt = (ATOM_PPLIB_POWERTUNE_Table_V1 *)
1265 					(mode_info->atom_context->bios + data_offset +
1266 					 le16_to_cpu(ext_hdr->usPowerTuneTableOffset));
1267 				rdev->pm.dpm.dyn_state.cac_tdp_table->maximum_power_delivery_limit =
1268 					le16_to_cpu(ppt->usMaximumPowerDeliveryLimit);
1269 				pt = &ppt->power_tune_table;
1270 			} else {
1271 				ATOM_PPLIB_POWERTUNE_Table *ppt = (ATOM_PPLIB_POWERTUNE_Table *)
1272 					(mode_info->atom_context->bios + data_offset +
1273 					 le16_to_cpu(ext_hdr->usPowerTuneTableOffset));
1274 				rdev->pm.dpm.dyn_state.cac_tdp_table->maximum_power_delivery_limit = 255;
1275 				pt = &ppt->power_tune_table;
1276 			}
1277 			rdev->pm.dpm.dyn_state.cac_tdp_table->tdp = le16_to_cpu(pt->usTDP);
1278 			rdev->pm.dpm.dyn_state.cac_tdp_table->configurable_tdp =
1279 				le16_to_cpu(pt->usConfigurableTDP);
1280 			rdev->pm.dpm.dyn_state.cac_tdp_table->tdc = le16_to_cpu(pt->usTDC);
1281 			rdev->pm.dpm.dyn_state.cac_tdp_table->battery_power_limit =
1282 				le16_to_cpu(pt->usBatteryPowerLimit);
1283 			rdev->pm.dpm.dyn_state.cac_tdp_table->small_power_limit =
1284 				le16_to_cpu(pt->usSmallPowerLimit);
1285 			rdev->pm.dpm.dyn_state.cac_tdp_table->low_cac_leakage =
1286 				le16_to_cpu(pt->usLowCACLeakage);
1287 			rdev->pm.dpm.dyn_state.cac_tdp_table->high_cac_leakage =
1288 				le16_to_cpu(pt->usHighCACLeakage);
1289 		}
1290 	}
1291 
1292 	return 0;
1293 }
1294 
1295 void r600_free_extended_power_table(struct radeon_device *rdev)
1296 {
1297 	struct radeon_dpm_dynamic_state *dyn_state = &rdev->pm.dpm.dyn_state;
1298 
1299 	kfree(dyn_state->vddc_dependency_on_sclk.entries);
1300 	kfree(dyn_state->vddci_dependency_on_mclk.entries);
1301 	kfree(dyn_state->vddc_dependency_on_mclk.entries);
1302 	kfree(dyn_state->mvdd_dependency_on_mclk.entries);
1303 	kfree(dyn_state->cac_leakage_table.entries);
1304 	kfree(dyn_state->phase_shedding_limits_table.entries);
1305 	kfree(dyn_state->ppm_table);
1306 	kfree(dyn_state->cac_tdp_table);
1307 	kfree(dyn_state->vce_clock_voltage_dependency_table.entries);
1308 	kfree(dyn_state->uvd_clock_voltage_dependency_table.entries);
1309 	kfree(dyn_state->samu_clock_voltage_dependency_table.entries);
1310 	kfree(dyn_state->acp_clock_voltage_dependency_table.entries);
1311 }
1312 
1313 enum radeon_pcie_gen r600_get_pcie_gen_support(struct radeon_device *rdev,
1314 					       u32 sys_mask,
1315 					       enum radeon_pcie_gen asic_gen,
1316 					       enum radeon_pcie_gen default_gen)
1317 {
1318 	switch (asic_gen) {
1319 	case RADEON_PCIE_GEN1:
1320 		return RADEON_PCIE_GEN1;
1321 	case RADEON_PCIE_GEN2:
1322 		return RADEON_PCIE_GEN2;
1323 	case RADEON_PCIE_GEN3:
1324 		return RADEON_PCIE_GEN3;
1325 	default:
1326 		if ((sys_mask & DRM_PCIE_SPEED_80) && (default_gen == RADEON_PCIE_GEN3))
1327 			return RADEON_PCIE_GEN3;
1328 		else if ((sys_mask & DRM_PCIE_SPEED_50) && (default_gen == RADEON_PCIE_GEN2))
1329 			return RADEON_PCIE_GEN2;
1330 		else
1331 			return RADEON_PCIE_GEN1;
1332 	}
1333 	return RADEON_PCIE_GEN1;
1334 }
1335 
1336 u16 r600_get_pcie_lane_support(struct radeon_device *rdev,
1337 			       u16 asic_lanes,
1338 			       u16 default_lanes)
1339 {
1340 	switch (asic_lanes) {
1341 	case 0:
1342 	default:
1343 		return default_lanes;
1344 	case 1:
1345 		return 1;
1346 	case 2:
1347 		return 2;
1348 	case 4:
1349 		return 4;
1350 	case 8:
1351 		return 8;
1352 	case 12:
1353 		return 12;
1354 	case 16:
1355 		return 16;
1356 	}
1357 }
1358 
1359 u8 r600_encode_pci_lane_width(u32 lanes)
1360 {
1361 	u8 encoded_lanes[] = { 0, 1, 2, 0, 3, 0, 0, 0, 4, 0, 0, 0, 5, 0, 0, 0, 6 };
1362 
1363 	if (lanes > 16)
1364 		return 0;
1365 
1366 	return encoded_lanes[lanes];
1367 }
1368