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drm/radeon/dpm/r6xx: properly catch errors in dpm setup
[deliverable/linux.git] / drivers / gpu / drm / radeon / rs780_dpm.c
CommitLineData
9d67006e
AD		 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 "rs780d.h"
28#include "r600_dpm.h"
29#include "rs780_dpm.h"
30#include "atom.h"
31
32static struct igp_ps *rs780_get_ps(struct radeon_ps *rps)
33{
34 struct igp_ps *ps = rps->ps_priv;
35
36 return ps;
37}
38
39static struct igp_power_info *rs780_get_pi(struct radeon_device *rdev)
40{
41 struct igp_power_info *pi = rdev->pm.dpm.priv;
42
43 return pi;
44}
45
46static void rs780_get_pm_mode_parameters(struct radeon_device *rdev)
47{
48 struct igp_power_info *pi = rs780_get_pi(rdev);
49 struct radeon_mode_info *minfo = &rdev->mode_info;
50 struct drm_crtc *crtc;
51 struct radeon_crtc *radeon_crtc;
52 int i;
53
54 /* defaults */
55 pi->crtc_id = 0;
56 pi->refresh_rate = 60;
57
58 for (i = 0; i < rdev->num_crtc; i++) {
59 crtc = (struct drm_crtc *)minfo->crtcs[i];
60 if (crtc && crtc->enabled) {
61 radeon_crtc = to_radeon_crtc(crtc);
62 pi->crtc_id = radeon_crtc->crtc_id;
63 if (crtc->mode.htotal && crtc->mode.vtotal)
64 pi->refresh_rate =
65 (crtc->mode.clock * 1000) /
66 (crtc->mode.htotal * crtc->mode.vtotal);
67 break;
68 }
69 }
70}
71
72static void rs780_voltage_scaling_enable(struct radeon_device *rdev, bool enable);
73
f5d73a80
AD		 74static int rs780_initialize_dpm_power_state(struct radeon_device *rdev,
75 struct radeon_ps *boot_ps)
9d67006e
AD		 76{
77 struct atom_clock_dividers dividers;
f5d73a80 78 struct igp_ps *default_state = rs780_get_ps(boot_ps);
9d67006e
AD		 79 int i, ret;
80
81 ret = radeon_atom_get_clock_dividers(rdev, COMPUTE_ENGINE_PLL_PARAM,
82 default_state->sclk_low, false, &dividers);
83 if (ret)
84 return ret;
85
86 r600_engine_clock_entry_set_reference_divider(rdev, 0, dividers.ref_div);
87 r600_engine_clock_entry_set_feedback_divider(rdev, 0, dividers.fb_div);
88 r600_engine_clock_entry_set_post_divider(rdev, 0, dividers.post_div);
89
90 if (dividers.enable_post_div)
91 r600_engine_clock_entry_enable_post_divider(rdev, 0, true);
92 else
93 r600_engine_clock_entry_enable_post_divider(rdev, 0, false);
94
95 r600_engine_clock_entry_set_step_time(rdev, 0, R600_SST_DFLT);
96 r600_engine_clock_entry_enable_pulse_skipping(rdev, 0, false);
97
98 r600_engine_clock_entry_enable(rdev, 0, true);
99 for (i = 1; i < R600_PM_NUMBER_OF_SCLKS; i++)
100 r600_engine_clock_entry_enable(rdev, i, false);
101
102 r600_enable_mclk_control(rdev, false);
103 r600_voltage_control_enable_pins(rdev, 0);
104
105 return 0;
106}
107
f5d73a80
AD		 108static int rs780_initialize_dpm_parameters(struct radeon_device *rdev,
109 struct radeon_ps *boot_ps)
9d67006e
AD		 110{
111 int ret = 0;
112 int i;
113
114 r600_set_bsp(rdev, R600_BSU_DFLT, R600_BSP_DFLT);
115
116 r600_set_at(rdev, 0, 0, 0, 0);
117
118 r600_set_git(rdev, R600_GICST_DFLT);
119
120 for (i = 0; i < R600_PM_NUMBER_OF_TC; i++)
121 r600_set_tc(rdev, i, 0, 0);
122
123 r600_select_td(rdev, R600_TD_DFLT);
124 r600_set_vrc(rdev, 0);
125
126 r600_set_tpu(rdev, R600_TPU_DFLT);
127 r600_set_tpc(rdev, R600_TPC_DFLT);
128
129 r600_set_sstu(rdev, R600_SSTU_DFLT);
130 r600_set_sst(rdev, R600_SST_DFLT);
131
132 r600_set_fctu(rdev, R600_FCTU_DFLT);
133 r600_set_fct(rdev, R600_FCT_DFLT);
134
135 r600_set_vddc3d_oorsu(rdev, R600_VDDC3DOORSU_DFLT);
136 r600_set_vddc3d_oorphc(rdev, R600_VDDC3DOORPHC_DFLT);
137 r600_set_vddc3d_oorsdc(rdev, R600_VDDC3DOORSDC_DFLT);
138 r600_set_ctxcgtt3d_rphc(rdev, R600_CTXCGTT3DRPHC_DFLT);
139 r600_set_ctxcgtt3d_rsdc(rdev, R600_CTXCGTT3DRSDC_DFLT);
140
141 r600_vid_rt_set_vru(rdev, R600_VRU_DFLT);
142 r600_vid_rt_set_vrt(rdev, R600_VOLTAGERESPONSETIME_DFLT);
143 r600_vid_rt_set_ssu(rdev, R600_SPLLSTEPUNIT_DFLT);
144
f5d73a80 145 ret = rs780_initialize_dpm_power_state(rdev, boot_ps);
9d67006e
AD		 146
147 r600_power_level_set_voltage_index(rdev, R600_POWER_LEVEL_LOW, 0);
148 r600_power_level_set_voltage_index(rdev, R600_POWER_LEVEL_MEDIUM, 0);
149 r600_power_level_set_voltage_index(rdev, R600_POWER_LEVEL_HIGH, 0);
150
151 r600_power_level_set_mem_clock_index(rdev, R600_POWER_LEVEL_LOW, 0);
152 r600_power_level_set_mem_clock_index(rdev, R600_POWER_LEVEL_MEDIUM, 0);
153 r600_power_level_set_mem_clock_index(rdev, R600_POWER_LEVEL_HIGH, 0);
154
155 r600_power_level_set_eng_clock_index(rdev, R600_POWER_LEVEL_LOW, 0);
156 r600_power_level_set_eng_clock_index(rdev, R600_POWER_LEVEL_MEDIUM, 0);
157 r600_power_level_set_eng_clock_index(rdev, R600_POWER_LEVEL_HIGH, 0);
158
159 r600_power_level_set_watermark_id(rdev, R600_POWER_LEVEL_LOW, R600_DISPLAY_WATERMARK_HIGH);
160 r600_power_level_set_watermark_id(rdev, R600_POWER_LEVEL_MEDIUM, R600_DISPLAY_WATERMARK_HIGH);
161 r600_power_level_set_watermark_id(rdev, R600_POWER_LEVEL_HIGH, R600_DISPLAY_WATERMARK_HIGH);
162
163 r600_power_level_enable(rdev, R600_POWER_LEVEL_CTXSW, false);
164 r600_power_level_enable(rdev, R600_POWER_LEVEL_HIGH, false);
165 r600_power_level_enable(rdev, R600_POWER_LEVEL_MEDIUM, false);
166 r600_power_level_enable(rdev, R600_POWER_LEVEL_LOW, true);
167
168 r600_power_level_set_enter_index(rdev, R600_POWER_LEVEL_LOW);
169
170 r600_set_vrc(rdev, RS780_CGFTV_DFLT);
171
172 return ret;
173}
174
175static void rs780_start_dpm(struct radeon_device *rdev)
176{
177 r600_enable_sclk_control(rdev, false);
178 r600_enable_mclk_control(rdev, false);
179
180 r600_dynamicpm_enable(rdev, true);
181
182 radeon_wait_for_vblank(rdev, 0);
183 radeon_wait_for_vblank(rdev, 1);
184
185 r600_enable_spll_bypass(rdev, true);
186 r600_wait_for_spll_change(rdev);
187 r600_enable_spll_bypass(rdev, false);
188 r600_wait_for_spll_change(rdev);
189
190 r600_enable_spll_bypass(rdev, true);
191 r600_wait_for_spll_change(rdev);
192 r600_enable_spll_bypass(rdev, false);
193 r600_wait_for_spll_change(rdev);
194
195 r600_enable_sclk_control(rdev, true);
196}
197
198
199static void rs780_preset_ranges_slow_clk_fbdiv_en(struct radeon_device *rdev)
200{
201 WREG32_P(FVTHROT_SLOW_CLK_FEEDBACK_DIV_REG1, RANGE_SLOW_CLK_FEEDBACK_DIV_EN,
202 ~RANGE_SLOW_CLK_FEEDBACK_DIV_EN);
203
204 WREG32_P(FVTHROT_SLOW_CLK_FEEDBACK_DIV_REG1,
205 RANGE0_SLOW_CLK_FEEDBACK_DIV(RS780_SLOWCLKFEEDBACKDIV_DFLT),
206 ~RANGE0_SLOW_CLK_FEEDBACK_DIV_MASK);
207}
208
209static void rs780_preset_starting_fbdiv(struct radeon_device *rdev)
210{
211 u32 fbdiv = (RREG32(CG_SPLL_FUNC_CNTL) & SPLL_FB_DIV_MASK) >> SPLL_FB_DIV_SHIFT;
212
213 WREG32_P(FVTHROT_FBDIV_REG1, STARTING_FEEDBACK_DIV(fbdiv),
214 ~STARTING_FEEDBACK_DIV_MASK);
215
216 WREG32_P(FVTHROT_FBDIV_REG2, FORCED_FEEDBACK_DIV(fbdiv),
217 ~FORCED_FEEDBACK_DIV_MASK);
218
219 WREG32_P(FVTHROT_FBDIV_REG1, FORCE_FEEDBACK_DIV, ~FORCE_FEEDBACK_DIV);
220}
221
222static void rs780_voltage_scaling_init(struct radeon_device *rdev)
223{
224 struct igp_power_info *pi = rs780_get_pi(rdev);
225 struct drm_device *dev = rdev->ddev;
226 u32 fv_throt_pwm_fb_div_range[3];
227 u32 fv_throt_pwm_range[4];
228
229 if (dev->pdev->device == 0x9614) {
230 fv_throt_pwm_fb_div_range[0] = RS780D_FVTHROTPWMFBDIVRANGEREG0_DFLT;
231 fv_throt_pwm_fb_div_range[1] = RS780D_FVTHROTPWMFBDIVRANGEREG1_DFLT;
232 fv_throt_pwm_fb_div_range[2] = RS780D_FVTHROTPWMFBDIVRANGEREG2_DFLT;
233 } else if ((dev->pdev->device == 0x9714) ||
234 (dev->pdev->device == 0x9715)) {
235 fv_throt_pwm_fb_div_range[0] = RS880D_FVTHROTPWMFBDIVRANGEREG0_DFLT;
236 fv_throt_pwm_fb_div_range[1] = RS880D_FVTHROTPWMFBDIVRANGEREG1_DFLT;
237 fv_throt_pwm_fb_div_range[2] = RS880D_FVTHROTPWMFBDIVRANGEREG2_DFLT;
238 } else {
239 fv_throt_pwm_fb_div_range[0] = RS780_FVTHROTPWMFBDIVRANGEREG0_DFLT;
240 fv_throt_pwm_fb_div_range[1] = RS780_FVTHROTPWMFBDIVRANGEREG1_DFLT;
241 fv_throt_pwm_fb_div_range[2] = RS780_FVTHROTPWMFBDIVRANGEREG2_DFLT;
242 }
243
244 if (pi->pwm_voltage_control) {
245 fv_throt_pwm_range[0] = pi->min_voltage;
246 fv_throt_pwm_range[1] = pi->min_voltage;
247 fv_throt_pwm_range[2] = pi->max_voltage;
248 fv_throt_pwm_range[3] = pi->max_voltage;
249 } else {
250 fv_throt_pwm_range[0] = pi->invert_pwm_required ?
251 RS780_FVTHROTPWMRANGE3_GPIO_DFLT : RS780_FVTHROTPWMRANGE0_GPIO_DFLT;
252 fv_throt_pwm_range[1] = pi->invert_pwm_required ?
253 RS780_FVTHROTPWMRANGE2_GPIO_DFLT : RS780_FVTHROTPWMRANGE1_GPIO_DFLT;
254 fv_throt_pwm_range[2] = pi->invert_pwm_required ?
255 RS780_FVTHROTPWMRANGE1_GPIO_DFLT : RS780_FVTHROTPWMRANGE2_GPIO_DFLT;
256 fv_throt_pwm_range[3] = pi->invert_pwm_required ?
257 RS780_FVTHROTPWMRANGE0_GPIO_DFLT : RS780_FVTHROTPWMRANGE3_GPIO_DFLT;
258 }
259
260 WREG32_P(FVTHROT_PWM_CTRL_REG0,
261 STARTING_PWM_HIGHTIME(pi->max_voltage),
262 ~STARTING_PWM_HIGHTIME_MASK);
263
264 WREG32_P(FVTHROT_PWM_CTRL_REG0,
265 NUMBER_OF_CYCLES_IN_PERIOD(pi->num_of_cycles_in_period),
266 ~NUMBER_OF_CYCLES_IN_PERIOD_MASK);
267
268 WREG32_P(FVTHROT_PWM_CTRL_REG0, FORCE_STARTING_PWM_HIGHTIME,
269 ~FORCE_STARTING_PWM_HIGHTIME);
270
271 if (pi->invert_pwm_required)
272 WREG32_P(FVTHROT_PWM_CTRL_REG0, INVERT_PWM_WAVEFORM, ~INVERT_PWM_WAVEFORM);
273 else
274 WREG32_P(FVTHROT_PWM_CTRL_REG0, 0, ~INVERT_PWM_WAVEFORM);
275
276 rs780_voltage_scaling_enable(rdev, true);
277
278 WREG32(FVTHROT_PWM_CTRL_REG1,
279 (MIN_PWM_HIGHTIME(pi->min_voltage) |
280 MAX_PWM_HIGHTIME(pi->max_voltage)));
281
282 WREG32(FVTHROT_PWM_US_REG0, RS780_FVTHROTPWMUSREG0_DFLT);
283 WREG32(FVTHROT_PWM_US_REG1, RS780_FVTHROTPWMUSREG1_DFLT);
284 WREG32(FVTHROT_PWM_DS_REG0, RS780_FVTHROTPWMDSREG0_DFLT);
285 WREG32(FVTHROT_PWM_DS_REG1, RS780_FVTHROTPWMDSREG1_DFLT);
286
287 WREG32_P(FVTHROT_PWM_FEEDBACK_DIV_REG1,
288 RANGE0_PWM_FEEDBACK_DIV(fv_throt_pwm_fb_div_range[0]),
289 ~RANGE0_PWM_FEEDBACK_DIV_MASK);
290
291 WREG32(FVTHROT_PWM_FEEDBACK_DIV_REG2,
292 (RANGE1_PWM_FEEDBACK_DIV(fv_throt_pwm_fb_div_range[1]) |
293 RANGE2_PWM_FEEDBACK_DIV(fv_throt_pwm_fb_div_range[2])));
294
295 WREG32(FVTHROT_PWM_FEEDBACK_DIV_REG3,
296 (RANGE0_PWM(fv_throt_pwm_range[1]) |
297 RANGE1_PWM(fv_throt_pwm_range[2])));
298 WREG32(FVTHROT_PWM_FEEDBACK_DIV_REG4,
299 (RANGE2_PWM(fv_throt_pwm_range[1]) |
300 RANGE3_PWM(fv_throt_pwm_range[2])));
301}
302
303static void rs780_clk_scaling_enable(struct radeon_device *rdev, bool enable)
304{
305 if (enable)
306 WREG32_P(FVTHROT_CNTRL_REG, ENABLE_FV_THROT | ENABLE_FV_UPDATE,
307 ~(ENABLE_FV_THROT | ENABLE_FV_UPDATE));
308 else
309 WREG32_P(FVTHROT_CNTRL_REG, 0,
310 ~(ENABLE_FV_THROT | ENABLE_FV_UPDATE));
311}
312
313static void rs780_voltage_scaling_enable(struct radeon_device *rdev, bool enable)
314{
315 if (enable)
316 WREG32_P(FVTHROT_CNTRL_REG, ENABLE_FV_THROT_IO, ~ENABLE_FV_THROT_IO);
317 else
318 WREG32_P(FVTHROT_CNTRL_REG, 0, ~ENABLE_FV_THROT_IO);
319}
320
321static void rs780_set_engine_clock_wfc(struct radeon_device *rdev)
322{
323 WREG32(FVTHROT_UTC0, RS780_FVTHROTUTC0_DFLT);
324 WREG32(FVTHROT_UTC1, RS780_FVTHROTUTC1_DFLT);
325 WREG32(FVTHROT_UTC2, RS780_FVTHROTUTC2_DFLT);
326 WREG32(FVTHROT_UTC3, RS780_FVTHROTUTC3_DFLT);
327 WREG32(FVTHROT_UTC4, RS780_FVTHROTUTC4_DFLT);
328
329 WREG32(FVTHROT_DTC0, RS780_FVTHROTDTC0_DFLT);
330 WREG32(FVTHROT_DTC1, RS780_FVTHROTDTC1_DFLT);
331 WREG32(FVTHROT_DTC2, RS780_FVTHROTDTC2_DFLT);
332 WREG32(FVTHROT_DTC3, RS780_FVTHROTDTC3_DFLT);
333 WREG32(FVTHROT_DTC4, RS780_FVTHROTDTC4_DFLT);
334}
335
336static void rs780_set_engine_clock_sc(struct radeon_device *rdev)
337{
338 WREG32_P(FVTHROT_FBDIV_REG2,
339 FB_DIV_TIMER_VAL(RS780_FBDIVTIMERVAL_DFLT),
340 ~FB_DIV_TIMER_VAL_MASK);
341
342 WREG32_P(FVTHROT_CNTRL_REG,
343 REFRESH_RATE_DIVISOR(0) | MINIMUM_CIP(0xf),
344 ~(REFRESH_RATE_DIVISOR_MASK | MINIMUM_CIP_MASK));
345}
346
347static void rs780_set_engine_clock_tdc(struct radeon_device *rdev)
348{
349 WREG32_P(FVTHROT_CNTRL_REG, 0, ~(FORCE_TREND_SEL | TREND_SEL_MODE));
350}
351
352static void rs780_set_engine_clock_ssc(struct radeon_device *rdev)
353{
354 WREG32(FVTHROT_FB_US_REG0, RS780_FVTHROTFBUSREG0_DFLT);
355 WREG32(FVTHROT_FB_US_REG1, RS780_FVTHROTFBUSREG1_DFLT);
356 WREG32(FVTHROT_FB_DS_REG0, RS780_FVTHROTFBDSREG0_DFLT);
357 WREG32(FVTHROT_FB_DS_REG1, RS780_FVTHROTFBDSREG1_DFLT);
358
359 WREG32_P(FVTHROT_FBDIV_REG1, MAX_FEEDBACK_STEP(1), ~MAX_FEEDBACK_STEP_MASK);
360}
361
362static void rs780_program_at(struct radeon_device *rdev)
363{
364 struct igp_power_info *pi = rs780_get_pi(rdev);
365
366 WREG32(FVTHROT_TARGET_REG, 30000000 / pi->refresh_rate);
367 WREG32(FVTHROT_CB1, 1000000 * 5 / pi->refresh_rate);
368 WREG32(FVTHROT_CB2, 1000000 * 10 / pi->refresh_rate);
369 WREG32(FVTHROT_CB3, 1000000 * 30 / pi->refresh_rate);
370 WREG32(FVTHROT_CB4, 1000000 * 50 / pi->refresh_rate);
371}
372
373static void rs780_disable_vbios_powersaving(struct radeon_device *rdev)
374{
375 WREG32_P(CG_INTGFX_MISC, 0, ~0xFFF00000);
376}
377
378static void rs780_force_voltage_to_high(struct radeon_device *rdev)
379{
380 struct igp_power_info *pi = rs780_get_pi(rdev);
381 struct igp_ps *current_state = rs780_get_ps(rdev->pm.dpm.current_ps);
382
383 if ((current_state->max_voltage == RS780_VDDC_LEVEL_HIGH) &&
384 (current_state->min_voltage == RS780_VDDC_LEVEL_HIGH))
385 return;
386
387 WREG32_P(GFX_MACRO_BYPASS_CNTL, SPLL_BYPASS_CNTL, ~SPLL_BYPASS_CNTL);
388
389 udelay(1);
390
391 WREG32_P(FVTHROT_PWM_CTRL_REG0,
392 STARTING_PWM_HIGHTIME(pi->max_voltage),
393 ~STARTING_PWM_HIGHTIME_MASK);
394
395 WREG32_P(FVTHROT_PWM_CTRL_REG0,
396 FORCE_STARTING_PWM_HIGHTIME, ~FORCE_STARTING_PWM_HIGHTIME);
397
398 WREG32_P(FVTHROT_PWM_FEEDBACK_DIV_REG1, 0,
399 ~RANGE_PWM_FEEDBACK_DIV_EN);
400
401 udelay(1);
402
403 WREG32_P(GFX_MACRO_BYPASS_CNTL, 0, ~SPLL_BYPASS_CNTL);
404}
405
f5d73a80
AD		 406static int rs780_set_engine_clock_scaling(struct radeon_device *rdev,
407 struct radeon_ps *new_ps,
408 struct radeon_ps *old_ps)
9d67006e
AD		 409{
410 struct atom_clock_dividers min_dividers, max_dividers, current_max_dividers;
f5d73a80
AD		 411 struct igp_ps *new_state = rs780_get_ps(new_ps);
412 struct igp_ps *old_state = rs780_get_ps(old_ps);
9d67006e
AD		 413 int ret;
414
415 if ((new_state->sclk_high == old_state->sclk_high) &&
416 (new_state->sclk_low == old_state->sclk_low))
417 return 0;
418
419 ret = radeon_atom_get_clock_dividers(rdev, COMPUTE_ENGINE_PLL_PARAM,
420 new_state->sclk_low, false, &min_dividers);
421 if (ret)
422 return ret;
423
424 ret = radeon_atom_get_clock_dividers(rdev, COMPUTE_ENGINE_PLL_PARAM,
425 new_state->sclk_high, false, &max_dividers);
426 if (ret)
427 return ret;
428
429 ret = radeon_atom_get_clock_dividers(rdev, COMPUTE_ENGINE_PLL_PARAM,
430 old_state->sclk_high, false, &current_max_dividers);
431 if (ret)
432 return ret;
433
434 WREG32_P(GFX_MACRO_BYPASS_CNTL, SPLL_BYPASS_CNTL, ~SPLL_BYPASS_CNTL);
435
436 WREG32_P(FVTHROT_FBDIV_REG2, FORCED_FEEDBACK_DIV(max_dividers.fb_div),
437 ~FORCED_FEEDBACK_DIV_MASK);
438 WREG32_P(FVTHROT_FBDIV_REG1, STARTING_FEEDBACK_DIV(max_dividers.fb_div),
439 ~STARTING_FEEDBACK_DIV_MASK);
440 WREG32_P(FVTHROT_FBDIV_REG1, FORCE_FEEDBACK_DIV, ~FORCE_FEEDBACK_DIV);
441
442 udelay(100);
443
444 WREG32_P(GFX_MACRO_BYPASS_CNTL, 0, ~SPLL_BYPASS_CNTL);
445
446 if (max_dividers.fb_div > min_dividers.fb_div) {
447 WREG32_P(FVTHROT_FBDIV_REG0,
448 MIN_FEEDBACK_DIV(min_dividers.fb_div) |
449 MAX_FEEDBACK_DIV(max_dividers.fb_div),
450 ~(MIN_FEEDBACK_DIV_MASK | MAX_FEEDBACK_DIV_MASK));
451
452 WREG32_P(FVTHROT_FBDIV_REG1, 0, ~FORCE_FEEDBACK_DIV);
453 }
454
455 return 0;
456}
457
f5d73a80
AD		 458static void rs780_set_engine_clock_spc(struct radeon_device *rdev,
459 struct radeon_ps *new_ps,
460 struct radeon_ps *old_ps)
9d67006e 461{
f5d73a80
AD		 462 struct igp_ps *new_state = rs780_get_ps(new_ps);
463 struct igp_ps *old_state = rs780_get_ps(old_ps);
9d67006e
AD		 464 struct igp_power_info *pi = rs780_get_pi(rdev);
465
466 if ((new_state->sclk_high == old_state->sclk_high) &&
467 (new_state->sclk_low == old_state->sclk_low))
468 return;
469
470 if (pi->crtc_id == 0)
471 WREG32_P(CG_INTGFX_MISC, 0, ~FVTHROT_VBLANK_SEL);
472 else
473 WREG32_P(CG_INTGFX_MISC, FVTHROT_VBLANK_SEL, ~FVTHROT_VBLANK_SEL);
474
475}
476
f5d73a80
AD		 477static void rs780_activate_engine_clk_scaling(struct radeon_device *rdev,
478 struct radeon_ps *new_ps,
479 struct radeon_ps *old_ps)
9d67006e 480{
f5d73a80
AD		 481 struct igp_ps *new_state = rs780_get_ps(new_ps);
482 struct igp_ps *old_state = rs780_get_ps(old_ps);
9d67006e
AD		 483
484 if ((new_state->sclk_high == old_state->sclk_high) &&
485 (new_state->sclk_low == old_state->sclk_low))
486 return;
487
488 rs780_clk_scaling_enable(rdev, true);
489}
490
491static u32 rs780_get_voltage_for_vddc_level(struct radeon_device *rdev,
492 enum rs780_vddc_level vddc)
493{
494 struct igp_power_info *pi = rs780_get_pi(rdev);
495
496 if (vddc == RS780_VDDC_LEVEL_HIGH)
497 return pi->max_voltage;
498 else if (vddc == RS780_VDDC_LEVEL_LOW)
499 return pi->min_voltage;
500 else
501 return pi->max_voltage;
502}
503
f5d73a80
AD		 504static void rs780_enable_voltage_scaling(struct radeon_device *rdev,
505 struct radeon_ps *new_ps)
9d67006e 506{
f5d73a80 507 struct igp_ps *new_state = rs780_get_ps(new_ps);
9d67006e
AD		 508 struct igp_power_info *pi = rs780_get_pi(rdev);
509 enum rs780_vddc_level vddc_high, vddc_low;
510
511 udelay(100);
512
513 if ((new_state->max_voltage == RS780_VDDC_LEVEL_HIGH) &&
514 (new_state->min_voltage == RS780_VDDC_LEVEL_HIGH))
515 return;
516
517 vddc_high = rs780_get_voltage_for_vddc_level(rdev,
518 new_state->max_voltage);
519 vddc_low = rs780_get_voltage_for_vddc_level(rdev,
520 new_state->min_voltage);
521
522 WREG32_P(GFX_MACRO_BYPASS_CNTL, SPLL_BYPASS_CNTL, ~SPLL_BYPASS_CNTL);
523
524 udelay(1);
525 if (vddc_high > vddc_low) {
526 WREG32_P(FVTHROT_PWM_FEEDBACK_DIV_REG1,
527 RANGE_PWM_FEEDBACK_DIV_EN, ~RANGE_PWM_FEEDBACK_DIV_EN);
528
529 WREG32_P(FVTHROT_PWM_CTRL_REG0, 0, ~FORCE_STARTING_PWM_HIGHTIME);
530 } else if (vddc_high == vddc_low) {
531 if (pi->max_voltage != vddc_high) {
532 WREG32_P(FVTHROT_PWM_CTRL_REG0,
533 STARTING_PWM_HIGHTIME(vddc_high),
534 ~STARTING_PWM_HIGHTIME_MASK);
535
536 WREG32_P(FVTHROT_PWM_CTRL_REG0,
537 FORCE_STARTING_PWM_HIGHTIME,
538 ~FORCE_STARTING_PWM_HIGHTIME);
539 }
540 }
541
542 WREG32_P(GFX_MACRO_BYPASS_CNTL, 0, ~SPLL_BYPASS_CNTL);
543}
544
545int rs780_dpm_enable(struct radeon_device *rdev)
546{
547 struct igp_power_info *pi = rs780_get_pi(rdev);
f5d73a80 548 struct radeon_ps *boot_ps = rdev->pm.dpm.boot_ps;
9d67006e
AD		 549
550 rs780_get_pm_mode_parameters(rdev);
551 rs780_disable_vbios_powersaving(rdev);
552
553 if (r600_dynamicpm_enabled(rdev))
554 return -EINVAL;
f5d73a80 555 if (rs780_initialize_dpm_parameters(rdev, boot_ps))
9d67006e
AD		 556 return -EINVAL;
557 rs780_start_dpm(rdev);
558
559 rs780_preset_ranges_slow_clk_fbdiv_en(rdev);
560 rs780_preset_starting_fbdiv(rdev);
561 if (pi->voltage_control)
562 rs780_voltage_scaling_init(rdev);
563 rs780_clk_scaling_enable(rdev, true);
564 rs780_set_engine_clock_sc(rdev);
565 rs780_set_engine_clock_wfc(rdev);
566 rs780_program_at(rdev);
567 rs780_set_engine_clock_tdc(rdev);
568 rs780_set_engine_clock_ssc(rdev);
569
570 if (pi->gfx_clock_gating)
571 r600_gfx_clockgating_enable(rdev, true);
572
4a6369e9
AD		 573 if (rdev->irq.installed && (rdev->pm.int_thermal_type == THERMAL_TYPE_RV6XX)) {
574 r600_set_thermal_temperature_range(rdev, R600_TEMP_RANGE_MIN, R600_TEMP_RANGE_MAX);
575 rdev->irq.dpm_thermal = true;
576 radeon_irq_set(rdev);
577 }
578
9d67006e
AD		 579 return 0;
580}
581
582void rs780_dpm_disable(struct radeon_device *rdev)
583{
584 struct igp_power_info *pi = rs780_get_pi(rdev);
585
586 r600_dynamicpm_enable(rdev, false);
587
588 rs780_clk_scaling_enable(rdev, false);
589 rs780_voltage_scaling_enable(rdev, false);
590
591 if (pi->gfx_clock_gating)
592 r600_gfx_clockgating_enable(rdev, false);
4a6369e9
AD		 593
594 if (rdev->irq.installed &&
595 (rdev->pm.int_thermal_type == THERMAL_TYPE_RV6XX)) {
596 rdev->irq.dpm_thermal = false;
597 radeon_irq_set(rdev);
598 }
9d67006e
AD		 599}
600
601int rs780_dpm_set_power_state(struct radeon_device *rdev)
602{
603 struct igp_power_info *pi = rs780_get_pi(rdev);
f5d73a80
AD		 604 struct radeon_ps *new_ps = rdev->pm.dpm.requested_ps;
605 struct radeon_ps *old_ps = rdev->pm.dpm.current_ps;
9d67006e
AD		 606
607 rs780_get_pm_mode_parameters(rdev);
608
609 if (pi->voltage_control) {
610 rs780_force_voltage_to_high(rdev);
611 mdelay(5);
612 }
613
f5d73a80
AD		 614 rs780_set_engine_clock_scaling(rdev, new_ps, old_ps);
615 rs780_set_engine_clock_spc(rdev, new_ps, old_ps);
9d67006e 616
f5d73a80 617 rs780_activate_engine_clk_scaling(rdev, new_ps, old_ps);
9d67006e
AD		 618
619 if (pi->voltage_control)
f5d73a80 620 rs780_enable_voltage_scaling(rdev, new_ps);
9d67006e
AD		 621
622 return 0;
623}
624
625void rs780_dpm_setup_asic(struct radeon_device *rdev)
626{
627
628}
629
630void rs780_dpm_display_configuration_changed(struct radeon_device *rdev)
631{
632 rs780_get_pm_mode_parameters(rdev);
633 rs780_program_at(rdev);
634}
635
636union igp_info {
637 struct _ATOM_INTEGRATED_SYSTEM_INFO info;
638 struct _ATOM_INTEGRATED_SYSTEM_INFO_V2 info_2;
639};
640
641union power_info {
642 struct _ATOM_POWERPLAY_INFO info;
643 struct _ATOM_POWERPLAY_INFO_V2 info_2;
644 struct _ATOM_POWERPLAY_INFO_V3 info_3;
645 struct _ATOM_PPLIB_POWERPLAYTABLE pplib;
646 struct _ATOM_PPLIB_POWERPLAYTABLE2 pplib2;
647 struct _ATOM_PPLIB_POWERPLAYTABLE3 pplib3;
648};
649
650union pplib_clock_info {
651 struct _ATOM_PPLIB_R600_CLOCK_INFO r600;
652 struct _ATOM_PPLIB_RS780_CLOCK_INFO rs780;
653 struct _ATOM_PPLIB_EVERGREEN_CLOCK_INFO evergreen;
654 struct _ATOM_PPLIB_SUMO_CLOCK_INFO sumo;
655};
656
657union pplib_power_state {
658 struct _ATOM_PPLIB_STATE v1;
659 struct _ATOM_PPLIB_STATE_V2 v2;
660};
661
662static void rs780_parse_pplib_non_clock_info(struct radeon_device *rdev,
663 struct radeon_ps *rps,
664 struct _ATOM_PPLIB_NONCLOCK_INFO *non_clock_info,
665 u8 table_rev)
666{
667 rps->caps = le32_to_cpu(non_clock_info->ulCapsAndSettings);
668 rps->class = le16_to_cpu(non_clock_info->usClassification);
669 rps->class2 = le16_to_cpu(non_clock_info->usClassification2);
670
671 if (ATOM_PPLIB_NONCLOCKINFO_VER1 < table_rev) {
672 rps->vclk = le32_to_cpu(non_clock_info->ulVCLK);
673 rps->dclk = le32_to_cpu(non_clock_info->ulDCLK);
674 } else if (r600_is_uvd_state(rps->class, rps->class2)) {
675 rps->vclk = RS780_DEFAULT_VCLK_FREQ;
676 rps->dclk = RS780_DEFAULT_DCLK_FREQ;
677 } else {
678 rps->vclk = 0;
679 rps->dclk = 0;
680 }
681
682 if (rps->class & ATOM_PPLIB_CLASSIFICATION_BOOT)
683 rdev->pm.dpm.boot_ps = rps;
684 if (rps->class & ATOM_PPLIB_CLASSIFICATION_UVDSTATE)
685 rdev->pm.dpm.uvd_ps = rps;
686}
687
688static void rs780_parse_pplib_clock_info(struct radeon_device *rdev,
689 struct radeon_ps *rps,
690 union pplib_clock_info *clock_info)
691{
692 struct igp_ps *ps = rs780_get_ps(rps);
693 u32 sclk;
694
695 sclk = le16_to_cpu(clock_info->rs780.usLowEngineClockLow);
696 sclk |= clock_info->rs780.ucLowEngineClockHigh << 16;
697 ps->sclk_low = sclk;
698 sclk = le16_to_cpu(clock_info->rs780.usHighEngineClockLow);
699 sclk |= clock_info->rs780.ucHighEngineClockHigh << 16;
700 ps->sclk_high = sclk;
701 switch (le16_to_cpu(clock_info->rs780.usVDDC)) {
702 case ATOM_PPLIB_RS780_VOLTAGE_NONE:
703 default:
704 ps->min_voltage = RS780_VDDC_LEVEL_UNKNOWN;
705 ps->max_voltage = RS780_VDDC_LEVEL_UNKNOWN;
706 break;
707 case ATOM_PPLIB_RS780_VOLTAGE_LOW:
708 ps->min_voltage = RS780_VDDC_LEVEL_LOW;
709 ps->max_voltage = RS780_VDDC_LEVEL_LOW;
710 break;
711 case ATOM_PPLIB_RS780_VOLTAGE_HIGH:
712 ps->min_voltage = RS780_VDDC_LEVEL_HIGH;
713 ps->max_voltage = RS780_VDDC_LEVEL_HIGH;
714 break;
715 case ATOM_PPLIB_RS780_VOLTAGE_VARIABLE:
716 ps->min_voltage = RS780_VDDC_LEVEL_LOW;
717 ps->max_voltage = RS780_VDDC_LEVEL_HIGH;
718 break;
719 }
720 ps->flags = le32_to_cpu(clock_info->rs780.ulFlags);
721
722 if (rps->class & ATOM_PPLIB_CLASSIFICATION_BOOT) {
723 ps->sclk_low = rdev->clock.default_sclk;
724 ps->sclk_high = rdev->clock.default_sclk;
725 ps->min_voltage = RS780_VDDC_LEVEL_HIGH;
726 ps->max_voltage = RS780_VDDC_LEVEL_HIGH;
727 }
728}
729
730static int rs780_parse_power_table(struct radeon_device *rdev)
731{
732 struct radeon_mode_info *mode_info = &rdev->mode_info;
733 struct _ATOM_PPLIB_NONCLOCK_INFO *non_clock_info;
734 union pplib_power_state *power_state;
735 int i;
736 union pplib_clock_info *clock_info;
737 union power_info *power_info;
738 int index = GetIndexIntoMasterTable(DATA, PowerPlayInfo);
739 u16 data_offset;
740 u8 frev, crev;
741 struct igp_ps *ps;
742
743 if (!atom_parse_data_header(mode_info->atom_context, index, NULL,
744 &frev, &crev, &data_offset))
745 return -EINVAL;
746 power_info = (union power_info *)(mode_info->atom_context->bios + data_offset);
747
748 rdev->pm.dpm.ps = kzalloc(sizeof(struct radeon_ps) *
749 power_info->pplib.ucNumStates, GFP_KERNEL);
750 if (!rdev->pm.dpm.ps)
751 return -ENOMEM;
752 rdev->pm.dpm.platform_caps = le32_to_cpu(power_info->pplib.ulPlatformCaps);
753 rdev->pm.dpm.backbias_response_time = le16_to_cpu(power_info->pplib.usBackbiasTime);
754 rdev->pm.dpm.voltage_response_time = le16_to_cpu(power_info->pplib.usVoltageTime);
755
756 for (i = 0; i < power_info->pplib.ucNumStates; i++) {
757 power_state = (union pplib_power_state *)
758 (mode_info->atom_context->bios + data_offset +
759 le16_to_cpu(power_info->pplib.usStateArrayOffset) +
760 i * power_info->pplib.ucStateEntrySize);
761 non_clock_info = (struct _ATOM_PPLIB_NONCLOCK_INFO *)
762 (mode_info->atom_context->bios + data_offset +
763 le16_to_cpu(power_info->pplib.usNonClockInfoArrayOffset) +
764 (power_state->v1.ucNonClockStateIndex *
765 power_info->pplib.ucNonClockSize));
766 if (power_info->pplib.ucStateEntrySize - 1) {
767 clock_info = (union pplib_clock_info *)
768 (mode_info->atom_context->bios + data_offset +
769 le16_to_cpu(power_info->pplib.usClockInfoArrayOffset) +
770 (power_state->v1.ucClockStateIndices[0] *
771 power_info->pplib.ucClockInfoSize));
772 ps = kzalloc(sizeof(struct igp_ps), GFP_KERNEL);
773 if (ps == NULL) {
774 kfree(rdev->pm.dpm.ps);
775 return -ENOMEM;
776 }
777 rdev->pm.dpm.ps[i].ps_priv = ps;
778 rs780_parse_pplib_non_clock_info(rdev, &rdev->pm.dpm.ps[i],
779 non_clock_info,
780 power_info->pplib.ucNonClockSize);
781 rs780_parse_pplib_clock_info(rdev,
782 &rdev->pm.dpm.ps[i],
783 clock_info);
784 }
785 }
786 rdev->pm.dpm.num_ps = power_info->pplib.ucNumStates;
787 return 0;
788}
789
790int rs780_dpm_init(struct radeon_device *rdev)
791{
792 struct igp_power_info *pi;
793 int index = GetIndexIntoMasterTable(DATA, IntegratedSystemInfo);
794 union igp_info *info;
795 u16 data_offset;
796 u8 frev, crev;
797 int ret;
798
799 pi = kzalloc(sizeof(struct igp_power_info), GFP_KERNEL);
800 if (pi == NULL)
801 return -ENOMEM;
802 rdev->pm.dpm.priv = pi;
803
804 ret = rs780_parse_power_table(rdev);
805 if (ret)
806 return ret;
807
808 pi->voltage_control = false;
809 pi->gfx_clock_gating = true;
810
811 if (atom_parse_data_header(rdev->mode_info.atom_context, index, NULL,
812 &frev, &crev, &data_offset)) {
813 info = (union igp_info *)(rdev->mode_info.atom_context->bios + data_offset);
814
815 /* Get various system informations from bios */
816 switch (crev) {
817 case 1:
818 pi->num_of_cycles_in_period =
819 info->info.ucNumberOfCyclesInPeriod;
820 pi->num_of_cycles_in_period |=
821 info->info.ucNumberOfCyclesInPeriodHi << 8;
822 pi->invert_pwm_required =
823 (pi->num_of_cycles_in_period & 0x8000) ? true : false;
824 pi->boot_voltage = info->info.ucStartingPWM_HighTime;
825 pi->max_voltage = info->info.ucMaxNBVoltage;
826 pi->max_voltage |= info->info.ucMaxNBVoltageHigh << 8;
827 pi->min_voltage = info->info.ucMinNBVoltage;
828 pi->min_voltage |= info->info.ucMinNBVoltageHigh << 8;
829 pi->inter_voltage_low =
830 le16_to_cpu(info->info.usInterNBVoltageLow);
831 pi->inter_voltage_high =
832 le16_to_cpu(info->info.usInterNBVoltageHigh);
833 pi->voltage_control = true;
834 pi->bootup_uma_clk = info->info.usK8MemoryClock * 100;
835 break;
836 case 2:
837 pi->num_of_cycles_in_period =
838 le16_to_cpu(info->info_2.usNumberOfCyclesInPeriod);
839 pi->invert_pwm_required =
840 (pi->num_of_cycles_in_period & 0x8000) ? true : false;
841 pi->boot_voltage =
842 le16_to_cpu(info->info_2.usBootUpNBVoltage);
843 pi->max_voltage =
844 le16_to_cpu(info->info_2.usMaxNBVoltage);
845 pi->min_voltage =
846 le16_to_cpu(info->info_2.usMinNBVoltage);
847 pi->system_config =
848 le32_to_cpu(info->info_2.ulSystemConfig);
849 pi->pwm_voltage_control =
850 (pi->system_config & 0x4) ? true : false;
851 pi->voltage_control = true;
852 pi->bootup_uma_clk = le32_to_cpu(info->info_2.ulBootUpUMAClock);
853 break;
854 default:
855 DRM_ERROR("No integrated system info for your GPU\n");
856 return -EINVAL;
857 }
858 if (pi->min_voltage > pi->max_voltage)
859 pi->voltage_control = false;
860 if (pi->pwm_voltage_control) {
861 if ((pi->num_of_cycles_in_period == 0) ||
862 (pi->max_voltage == 0) ||
863 (pi->min_voltage == 0))
864 pi->voltage_control = false;
865 } else {
866 if ((pi->num_of_cycles_in_period == 0) ||
867 (pi->max_voltage == 0))
868 pi->voltage_control = false;
869 }
870
871 return 0;
872 }
873 radeon_dpm_fini(rdev);
874 return -EINVAL;
875}
876
877void rs780_dpm_print_power_state(struct radeon_device *rdev,
878 struct radeon_ps *rps)
879{
880 struct igp_ps *ps = rs780_get_ps(rps);
881
882 r600_dpm_print_class_info(rps->class, rps->class2);
883 r600_dpm_print_cap_info(rps->caps);
884 printk("\tuvd vclk: %d dclk: %d\n", rps->vclk, rps->dclk);
885 printk("\t\tpower level 0 sclk: %u vddc_index: %d\n",
886 ps->sclk_low, ps->min_voltage);
887 printk("\t\tpower level 1 sclk: %u vddc_index: %d\n",
888 ps->sclk_high, ps->max_voltage);
889 r600_dpm_print_ps_status(rdev, rps);
890}
891
892void rs780_dpm_fini(struct radeon_device *rdev)
893{
894 int i;
895
896 for (i = 0; i < rdev->pm.dpm.num_ps; i++) {
897 kfree(rdev->pm.dpm.ps[i].ps_priv);
898 }
899 kfree(rdev->pm.dpm.ps);
900 kfree(rdev->pm.dpm.priv);
901}
902
903u32 rs780_dpm_get_sclk(struct radeon_device *rdev, bool low)
904{
905 struct igp_ps *requested_state = rs780_get_ps(rdev->pm.dpm.requested_ps);
906
907 if (low)
908 return requested_state->sclk_low;
909 else
910 return requested_state->sclk_high;
911}
912
913u32 rs780_dpm_get_mclk(struct radeon_device *rdev, bool low)
914{
915 struct igp_power_info *pi = rs780_get_pi(rdev);
916
917 return pi->bootup_uma_clk;
918}
Linux kernel - Deliverables
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