drivers/gpu/drm/radeon/rs780_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 <linux/pci.h>
  26 #include <linux/seq_file.h>
  27
  28 #include "atom.h"
  29 #include "r600_dpm.h"
  30 #include "radeon.h"
  31 #include "radeon_asic.h"
  32 #include "rs780_dpm.h"
  33 #include "rs780d.h"
  34
  35 static struct igp_ps *rs780_get_ps(struct radeon_ps *rps)
  36 {
  37         struct igp_ps *ps = rps->ps_priv;
  38
  39         return ps;
  40 }
  41
  42 static struct igp_power_info *rs780_get_pi(struct radeon_device *rdev)
  43 {
  44         struct igp_power_info *pi = rdev->pm.dpm.priv;
  45
  46         return pi;
  47 }
  48
  49 static void rs780_get_pm_mode_parameters(struct radeon_device *rdev)
  50 {
  51         struct igp_power_info *pi = rs780_get_pi(rdev);
  52         struct radeon_mode_info *minfo = &rdev->mode_info;
  53         struct drm_crtc *crtc;
  54         struct radeon_crtc *radeon_crtc;
  55         int i;
  56
  57         /* defaults */
  58         pi->crtc_id = 0;
  59         pi->refresh_rate = 60;
  60
  61         for (i = 0; i < rdev->num_crtc; i++) {
  62                 crtc = (struct drm_crtc *)minfo->crtcs[i];
  63                 if (crtc && crtc->enabled) {
  64                         radeon_crtc = to_radeon_crtc(crtc);
  65                         pi->crtc_id = radeon_crtc->crtc_id;
  66                         if (crtc->mode.htotal && crtc->mode.vtotal)
  67                                 pi->refresh_rate = drm_mode_vrefresh(&crtc->mode);
  68                         break;
  69                 }
  70         }
  71 }
  72
  73 static void rs780_voltage_scaling_enable(struct radeon_device *rdev, bool enable);
  74
  75 static int rs780_initialize_dpm_power_state(struct radeon_device *rdev,
  76                                             struct radeon_ps *boot_ps)
  77 {
  78         struct atom_clock_dividers dividers;
  79         struct igp_ps *default_state = rs780_get_ps(boot_ps);
  80         int i, ret;
  81
  82         ret = radeon_atom_get_clock_dividers(rdev, COMPUTE_ENGINE_PLL_PARAM,
  83                                              default_state->sclk_low, false, &dividers);
  84         if (ret)
  85                 return ret;
  86
  87         r600_engine_clock_entry_set_reference_divider(rdev, 0, dividers.ref_div);
  88         r600_engine_clock_entry_set_feedback_divider(rdev, 0, dividers.fb_div);
  89         r600_engine_clock_entry_set_post_divider(rdev, 0, dividers.post_div);
  90
  91         if (dividers.enable_post_div)
  92                 r600_engine_clock_entry_enable_post_divider(rdev, 0, true);
  93         else
  94                 r600_engine_clock_entry_enable_post_divider(rdev, 0, false);
  95
  96         r600_engine_clock_entry_set_step_time(rdev, 0, R600_SST_DFLT);
  97         r600_engine_clock_entry_enable_pulse_skipping(rdev, 0, false);
  98
  99         r600_engine_clock_entry_enable(rdev, 0, true);
 100         for (i = 1; i < R600_PM_NUMBER_OF_SCLKS; i++)
 101                 r600_engine_clock_entry_enable(rdev, i, false);
 102
 103         r600_enable_mclk_control(rdev, false);
 104         r600_voltage_control_enable_pins(rdev, 0);
 105
 106         return 0;
 107 }
 108
 109 static int rs780_initialize_dpm_parameters(struct radeon_device *rdev,
 110                                            struct radeon_ps *boot_ps)
 111 {
 112         int ret = 0;
 113         int i;
 114
 115         r600_set_bsp(rdev, R600_BSU_DFLT, R600_BSP_DFLT);
 116
 117         r600_set_at(rdev, 0, 0, 0, 0);
 118
 119         r600_set_git(rdev, R600_GICST_DFLT);
 120
 121         for (i = 0; i < R600_PM_NUMBER_OF_TC; i++)
 122                 r600_set_tc(rdev, i, 0, 0);
 123
 124         r600_select_td(rdev, R600_TD_DFLT);
 125         r600_set_vrc(rdev, 0);
 126
 127         r600_set_tpu(rdev, R600_TPU_DFLT);
 128         r600_set_tpc(rdev, R600_TPC_DFLT);
 129
 130         r600_set_sstu(rdev, R600_SSTU_DFLT);
 131         r600_set_sst(rdev, R600_SST_DFLT);
 132
 133         r600_set_fctu(rdev, R600_FCTU_DFLT);
 134         r600_set_fct(rdev, R600_FCT_DFLT);
 135
 136         r600_set_vddc3d_oorsu(rdev, R600_VDDC3DOORSU_DFLT);
 137         r600_set_vddc3d_oorphc(rdev, R600_VDDC3DOORPHC_DFLT);
 138         r600_set_vddc3d_oorsdc(rdev, R600_VDDC3DOORSDC_DFLT);
 139         r600_set_ctxcgtt3d_rphc(rdev, R600_CTXCGTT3DRPHC_DFLT);
 140         r600_set_ctxcgtt3d_rsdc(rdev, R600_CTXCGTT3DRSDC_DFLT);
 141
 142         r600_vid_rt_set_vru(rdev, R600_VRU_DFLT);
 143         r600_vid_rt_set_vrt(rdev, R600_VOLTAGERESPONSETIME_DFLT);
 144         r600_vid_rt_set_ssu(rdev, R600_SPLLSTEPUNIT_DFLT);
 145
 146         ret = rs780_initialize_dpm_power_state(rdev, boot_ps);
 147
 148         r600_power_level_set_voltage_index(rdev, R600_POWER_LEVEL_LOW,     0);
 149         r600_power_level_set_voltage_index(rdev, R600_POWER_LEVEL_MEDIUM,  0);
 150         r600_power_level_set_voltage_index(rdev, R600_POWER_LEVEL_HIGH,    0);
 151
 152         r600_power_level_set_mem_clock_index(rdev, R600_POWER_LEVEL_LOW,    0);
 153         r600_power_level_set_mem_clock_index(rdev, R600_POWER_LEVEL_MEDIUM, 0);
 154         r600_power_level_set_mem_clock_index(rdev, R600_POWER_LEVEL_HIGH,   0);
 155
 156         r600_power_level_set_eng_clock_index(rdev, R600_POWER_LEVEL_LOW,    0);
 157         r600_power_level_set_eng_clock_index(rdev, R600_POWER_LEVEL_MEDIUM, 0);
 158         r600_power_level_set_eng_clock_index(rdev, R600_POWER_LEVEL_HIGH,   0);
 159
 160         r600_power_level_set_watermark_id(rdev, R600_POWER_LEVEL_LOW,    R600_DISPLAY_WATERMARK_HIGH);
 161         r600_power_level_set_watermark_id(rdev, R600_POWER_LEVEL_MEDIUM, R600_DISPLAY_WATERMARK_HIGH);
 162         r600_power_level_set_watermark_id(rdev, R600_POWER_LEVEL_HIGH,   R600_DISPLAY_WATERMARK_HIGH);
 163
 164         r600_power_level_enable(rdev, R600_POWER_LEVEL_CTXSW, false);
 165         r600_power_level_enable(rdev, R600_POWER_LEVEL_HIGH, false);
 166         r600_power_level_enable(rdev, R600_POWER_LEVEL_MEDIUM, false);
 167         r600_power_level_enable(rdev, R600_POWER_LEVEL_LOW, true);
 168
 169         r600_power_level_set_enter_index(rdev, R600_POWER_LEVEL_LOW);
 170
 171         r600_set_vrc(rdev, RS780_CGFTV_DFLT);
 172
 173         return ret;
 174 }
 175
 176 static void rs780_start_dpm(struct radeon_device *rdev)
 177 {
 178         r600_enable_sclk_control(rdev, false);
 179         r600_enable_mclk_control(rdev, false);
 180
 181         r600_dynamicpm_enable(rdev, true);
 182
 183         radeon_wait_for_vblank(rdev, 0);
 184         radeon_wait_for_vblank(rdev, 1);
 185
 186         r600_enable_spll_bypass(rdev, true);
 187         r600_wait_for_spll_change(rdev);
 188         r600_enable_spll_bypass(rdev, false);
 189         r600_wait_for_spll_change(rdev);
 190
 191         r600_enable_spll_bypass(rdev, true);
 192         r600_wait_for_spll_change(rdev);
 193         r600_enable_spll_bypass(rdev, false);
 194         r600_wait_for_spll_change(rdev);
 195
 196         r600_enable_sclk_control(rdev, true);
 197 }
 198
 199
 200 static void rs780_preset_ranges_slow_clk_fbdiv_en(struct radeon_device *rdev)
 201 {
 202         WREG32_P(FVTHROT_SLOW_CLK_FEEDBACK_DIV_REG1, RANGE_SLOW_CLK_FEEDBACK_DIV_EN,
 203                  ~RANGE_SLOW_CLK_FEEDBACK_DIV_EN);
 204
 205         WREG32_P(FVTHROT_SLOW_CLK_FEEDBACK_DIV_REG1,
 206                  RANGE0_SLOW_CLK_FEEDBACK_DIV(RS780_SLOWCLKFEEDBACKDIV_DFLT),
 207                  ~RANGE0_SLOW_CLK_FEEDBACK_DIV_MASK);
 208 }
 209
 210 static void rs780_preset_starting_fbdiv(struct radeon_device *rdev)
 211 {
 212         u32 fbdiv = (RREG32(CG_SPLL_FUNC_CNTL) & SPLL_FB_DIV_MASK) >> SPLL_FB_DIV_SHIFT;
 213
 214         WREG32_P(FVTHROT_FBDIV_REG1, STARTING_FEEDBACK_DIV(fbdiv),
 215                  ~STARTING_FEEDBACK_DIV_MASK);
 216
 217         WREG32_P(FVTHROT_FBDIV_REG2, FORCED_FEEDBACK_DIV(fbdiv),
 218                  ~FORCED_FEEDBACK_DIV_MASK);
 219
 220         WREG32_P(FVTHROT_FBDIV_REG1, FORCE_FEEDBACK_DIV, ~FORCE_FEEDBACK_DIV);
 221 }
 222
 223 static void rs780_voltage_scaling_init(struct radeon_device *rdev)
 224 {
 225         struct igp_power_info *pi = rs780_get_pi(rdev);
 226         u32 fv_throt_pwm_fb_div_range[3];
 227         u32 fv_throt_pwm_range[4];
 228
 229         if (rdev->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 ((rdev->pdev->device == 0x9714) ||
 234                    (rdev->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
 303 static 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
 313 static 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
 321 static 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
 336 static 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
 347 static 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
 352 static 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
 362 static 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
 373 static void rs780_disable_vbios_powersaving(struct radeon_device *rdev)
 374 {
 375         WREG32_P(CG_INTGFX_MISC, 0, ~0xFFF00000);
 376 }
 377
 378 static void rs780_force_voltage(struct radeon_device *rdev, u16 voltage)
 379 {
 380         struct igp_ps *current_state = rs780_get_ps(rdev->pm.dpm.current_ps);
 381
 382         if ((current_state->max_voltage == RS780_VDDC_LEVEL_HIGH) &&
 383             (current_state->min_voltage == RS780_VDDC_LEVEL_HIGH))
 384                 return;
 385
 386         WREG32_P(GFX_MACRO_BYPASS_CNTL, SPLL_BYPASS_CNTL, ~SPLL_BYPASS_CNTL);
 387
 388         udelay(1);
 389
 390         WREG32_P(FVTHROT_PWM_CTRL_REG0,
 391                  STARTING_PWM_HIGHTIME(voltage),
 392                  ~STARTING_PWM_HIGHTIME_MASK);
 393
 394         WREG32_P(FVTHROT_PWM_CTRL_REG0,
 395                  FORCE_STARTING_PWM_HIGHTIME, ~FORCE_STARTING_PWM_HIGHTIME);
 396
 397         WREG32_P(FVTHROT_PWM_FEEDBACK_DIV_REG1, 0,
 398                 ~RANGE_PWM_FEEDBACK_DIV_EN);
 399
 400         udelay(1);
 401
 402         WREG32_P(GFX_MACRO_BYPASS_CNTL, 0, ~SPLL_BYPASS_CNTL);
 403 }
 404
 405 static void rs780_force_fbdiv(struct radeon_device *rdev, u32 fb_div)
 406 {
 407         struct igp_ps *current_state = rs780_get_ps(rdev->pm.dpm.current_ps);
 408
 409         if (current_state->sclk_low == current_state->sclk_high)
 410                 return;
 411
 412         WREG32_P(GFX_MACRO_BYPASS_CNTL, SPLL_BYPASS_CNTL, ~SPLL_BYPASS_CNTL);
 413
 414         WREG32_P(FVTHROT_FBDIV_REG2, FORCED_FEEDBACK_DIV(fb_div),
 415                  ~FORCED_FEEDBACK_DIV_MASK);
 416         WREG32_P(FVTHROT_FBDIV_REG1, STARTING_FEEDBACK_DIV(fb_div),
 417                  ~STARTING_FEEDBACK_DIV_MASK);
 418         WREG32_P(FVTHROT_FBDIV_REG1, FORCE_FEEDBACK_DIV, ~FORCE_FEEDBACK_DIV);
 419
 420         udelay(100);
 421
 422         WREG32_P(GFX_MACRO_BYPASS_CNTL, 0, ~SPLL_BYPASS_CNTL);
 423 }
 424
 425 static int rs780_set_engine_clock_scaling(struct radeon_device *rdev,
 426                                           struct radeon_ps *new_ps,
 427                                           struct radeon_ps *old_ps)
 428 {
 429         struct atom_clock_dividers min_dividers, max_dividers, current_max_dividers;
 430         struct igp_ps *new_state = rs780_get_ps(new_ps);
 431         struct igp_ps *old_state = rs780_get_ps(old_ps);
 432         int ret;
 433
 434         if ((new_state->sclk_high == old_state->sclk_high) &&
 435             (new_state->sclk_low == old_state->sclk_low))
 436                 return 0;
 437
 438         ret = radeon_atom_get_clock_dividers(rdev, COMPUTE_ENGINE_PLL_PARAM,
 439                                              new_state->sclk_low, false, &min_dividers);
 440         if (ret)
 441                 return ret;
 442
 443         ret = radeon_atom_get_clock_dividers(rdev, COMPUTE_ENGINE_PLL_PARAM,
 444                                              new_state->sclk_high, false, &max_dividers);
 445         if (ret)
 446                 return ret;
 447
 448         ret = radeon_atom_get_clock_dividers(rdev, COMPUTE_ENGINE_PLL_PARAM,
 449                                              old_state->sclk_high, false, &current_max_dividers);
 450         if (ret)
 451                 return ret;
 452
 453         if ((min_dividers.ref_div != max_dividers.ref_div) ||
 454             (min_dividers.post_div != max_dividers.post_div) ||
 455             (max_dividers.ref_div != current_max_dividers.ref_div) ||
 456             (max_dividers.post_div != current_max_dividers.post_div))
 457                 return -EINVAL;
 458
 459         rs780_force_fbdiv(rdev, max_dividers.fb_div);
 460
 461         if (max_dividers.fb_div > min_dividers.fb_div) {
 462                 WREG32_P(FVTHROT_FBDIV_REG0,
 463                          MIN_FEEDBACK_DIV(min_dividers.fb_div) |
 464                          MAX_FEEDBACK_DIV(max_dividers.fb_div),
 465                          ~(MIN_FEEDBACK_DIV_MASK | MAX_FEEDBACK_DIV_MASK));
 466
 467                 WREG32_P(FVTHROT_FBDIV_REG1, 0, ~FORCE_FEEDBACK_DIV);
 468         }
 469
 470         return 0;
 471 }
 472
 473 static void rs780_set_engine_clock_spc(struct radeon_device *rdev,
 474                                        struct radeon_ps *new_ps,
 475                                        struct radeon_ps *old_ps)
 476 {
 477         struct igp_ps *new_state = rs780_get_ps(new_ps);
 478         struct igp_ps *old_state = rs780_get_ps(old_ps);
 479         struct igp_power_info *pi = rs780_get_pi(rdev);
 480
 481         if ((new_state->sclk_high == old_state->sclk_high) &&
 482             (new_state->sclk_low == old_state->sclk_low))
 483                 return;
 484
 485         if (pi->crtc_id == 0)
 486                 WREG32_P(CG_INTGFX_MISC, 0, ~FVTHROT_VBLANK_SEL);
 487         else
 488                 WREG32_P(CG_INTGFX_MISC, FVTHROT_VBLANK_SEL, ~FVTHROT_VBLANK_SEL);
 489
 490 }
 491
 492 static void rs780_activate_engine_clk_scaling(struct radeon_device *rdev,
 493                                               struct radeon_ps *new_ps,
 494                                               struct radeon_ps *old_ps)
 495 {
 496         struct igp_ps *new_state = rs780_get_ps(new_ps);
 497         struct igp_ps *old_state = rs780_get_ps(old_ps);
 498
 499         if ((new_state->sclk_high == old_state->sclk_high) &&
 500             (new_state->sclk_low == old_state->sclk_low))
 501                 return;
 502
 503         if (new_state->sclk_high == new_state->sclk_low)
 504                 return;
 505
 506         rs780_clk_scaling_enable(rdev, true);
 507 }
 508
 509 static u32 rs780_get_voltage_for_vddc_level(struct radeon_device *rdev,
 510                                             enum rs780_vddc_level vddc)
 511 {
 512         struct igp_power_info *pi = rs780_get_pi(rdev);
 513
 514         if (vddc == RS780_VDDC_LEVEL_HIGH)
 515                 return pi->max_voltage;
 516         else if (vddc == RS780_VDDC_LEVEL_LOW)
 517                 return pi->min_voltage;
 518         else
 519                 return pi->max_voltage;
 520 }
 521
 522 static void rs780_enable_voltage_scaling(struct radeon_device *rdev,
 523                                          struct radeon_ps *new_ps)
 524 {
 525         struct igp_ps *new_state = rs780_get_ps(new_ps);
 526         struct igp_power_info *pi = rs780_get_pi(rdev);
 527         enum rs780_vddc_level vddc_high, vddc_low;
 528
 529         udelay(100);
 530
 531         if ((new_state->max_voltage == RS780_VDDC_LEVEL_HIGH) &&
 532             (new_state->min_voltage == RS780_VDDC_LEVEL_HIGH))
 533                 return;
 534
 535         vddc_high = rs780_get_voltage_for_vddc_level(rdev,
 536                                                      new_state->max_voltage);
 537         vddc_low = rs780_get_voltage_for_vddc_level(rdev,
 538                                                     new_state->min_voltage);
 539
 540         WREG32_P(GFX_MACRO_BYPASS_CNTL, SPLL_BYPASS_CNTL, ~SPLL_BYPASS_CNTL);
 541
 542         udelay(1);
 543         if (vddc_high > vddc_low) {
 544                 WREG32_P(FVTHROT_PWM_FEEDBACK_DIV_REG1,
 545                          RANGE_PWM_FEEDBACK_DIV_EN, ~RANGE_PWM_FEEDBACK_DIV_EN);
 546
 547                 WREG32_P(FVTHROT_PWM_CTRL_REG0, 0, ~FORCE_STARTING_PWM_HIGHTIME);
 548         } else if (vddc_high == vddc_low) {
 549                 if (pi->max_voltage != vddc_high) {
 550                         WREG32_P(FVTHROT_PWM_CTRL_REG0,
 551                                  STARTING_PWM_HIGHTIME(vddc_high),
 552                                  ~STARTING_PWM_HIGHTIME_MASK);
 553
 554                         WREG32_P(FVTHROT_PWM_CTRL_REG0,
 555                                  FORCE_STARTING_PWM_HIGHTIME,
 556                                  ~FORCE_STARTING_PWM_HIGHTIME);
 557                 }
 558         }
 559
 560         WREG32_P(GFX_MACRO_BYPASS_CNTL, 0, ~SPLL_BYPASS_CNTL);
 561 }
 562
 563 static void rs780_set_uvd_clock_before_set_eng_clock(struct radeon_device *rdev,
 564                                                      struct radeon_ps *new_ps,
 565                                                      struct radeon_ps *old_ps)
 566 {
 567         struct igp_ps *new_state = rs780_get_ps(new_ps);
 568         struct igp_ps *current_state = rs780_get_ps(old_ps);
 569
 570         if ((new_ps->vclk == old_ps->vclk) &&
 571             (new_ps->dclk == old_ps->dclk))
 572                 return;
 573
 574         if (new_state->sclk_high >= current_state->sclk_high)
 575                 return;
 576
 577         radeon_set_uvd_clocks(rdev, new_ps->vclk, new_ps->dclk);
 578 }
 579
 580 static void rs780_set_uvd_clock_after_set_eng_clock(struct radeon_device *rdev,
 581                                                     struct radeon_ps *new_ps,
 582                                                     struct radeon_ps *old_ps)
 583 {
 584         struct igp_ps *new_state = rs780_get_ps(new_ps);
 585         struct igp_ps *current_state = rs780_get_ps(old_ps);
 586
 587         if ((new_ps->vclk == old_ps->vclk) &&
 588             (new_ps->dclk == old_ps->dclk))
 589                 return;
 590
 591         if (new_state->sclk_high < current_state->sclk_high)
 592                 return;
 593
 594         radeon_set_uvd_clocks(rdev, new_ps->vclk, new_ps->dclk);
 595 }
 596
 597 int rs780_dpm_enable(struct radeon_device *rdev)
 598 {
 599         struct igp_power_info *pi = rs780_get_pi(rdev);
 600         struct radeon_ps *boot_ps = rdev->pm.dpm.boot_ps;
 601         int ret;
 602
 603         rs780_get_pm_mode_parameters(rdev);
 604         rs780_disable_vbios_powersaving(rdev);
 605
 606         if (r600_dynamicpm_enabled(rdev))
 607                 return -EINVAL;
 608         ret = rs780_initialize_dpm_parameters(rdev, boot_ps);
 609         if (ret)
 610                 return ret;
 611         rs780_start_dpm(rdev);
 612
 613         rs780_preset_ranges_slow_clk_fbdiv_en(rdev);
 614         rs780_preset_starting_fbdiv(rdev);
 615         if (pi->voltage_control)
 616                 rs780_voltage_scaling_init(rdev);
 617         rs780_clk_scaling_enable(rdev, true);
 618         rs780_set_engine_clock_sc(rdev);
 619         rs780_set_engine_clock_wfc(rdev);
 620         rs780_program_at(rdev);
 621         rs780_set_engine_clock_tdc(rdev);
 622         rs780_set_engine_clock_ssc(rdev);
 623
 624         if (pi->gfx_clock_gating)
 625                 r600_gfx_clockgating_enable(rdev, true);
 626
 627         return 0;
 628 }
 629
 630 void rs780_dpm_disable(struct radeon_device *rdev)
 631 {
 632         struct igp_power_info *pi = rs780_get_pi(rdev);
 633
 634         r600_dynamicpm_enable(rdev, false);
 635
 636         rs780_clk_scaling_enable(rdev, false);
 637         rs780_voltage_scaling_enable(rdev, false);
 638
 639         if (pi->gfx_clock_gating)
 640                 r600_gfx_clockgating_enable(rdev, false);
 641
 642         if (rdev->irq.installed &&
 643             (rdev->pm.int_thermal_type == THERMAL_TYPE_RV6XX)) {
 644                 rdev->irq.dpm_thermal = false;
 645                 radeon_irq_set(rdev);
 646         }
 647 }
 648
 649 int rs780_dpm_set_power_state(struct radeon_device *rdev)
 650 {
 651         struct igp_power_info *pi = rs780_get_pi(rdev);
 652         struct radeon_ps *new_ps = rdev->pm.dpm.requested_ps;
 653         struct radeon_ps *old_ps = rdev->pm.dpm.current_ps;
 654         int ret;
 655
 656         rs780_get_pm_mode_parameters(rdev);
 657
 658         rs780_set_uvd_clock_before_set_eng_clock(rdev, new_ps, old_ps);
 659
 660         if (pi->voltage_control) {
 661                 rs780_force_voltage(rdev, pi->max_voltage);
 662                 mdelay(5);
 663         }
 664
 665         ret = rs780_set_engine_clock_scaling(rdev, new_ps, old_ps);
 666         if (ret)
 667                 return ret;
 668         rs780_set_engine_clock_spc(rdev, new_ps, old_ps);
 669
 670         rs780_activate_engine_clk_scaling(rdev, new_ps, old_ps);
 671
 672         if (pi->voltage_control)
 673                 rs780_enable_voltage_scaling(rdev, new_ps);
 674
 675         rs780_set_uvd_clock_after_set_eng_clock(rdev, new_ps, old_ps);
 676
 677         return 0;
 678 }
 679
 680 void rs780_dpm_setup_asic(struct radeon_device *rdev)
 681 {
 682
 683 }
 684
 685 void rs780_dpm_display_configuration_changed(struct radeon_device *rdev)
 686 {
 687         rs780_get_pm_mode_parameters(rdev);
 688         rs780_program_at(rdev);
 689 }
 690
 691 union igp_info {
 692         struct _ATOM_INTEGRATED_SYSTEM_INFO info;
 693         struct _ATOM_INTEGRATED_SYSTEM_INFO_V2 info_2;
 694 };
 695
 696 union power_info {
 697         struct _ATOM_POWERPLAY_INFO info;
 698         struct _ATOM_POWERPLAY_INFO_V2 info_2;
 699         struct _ATOM_POWERPLAY_INFO_V3 info_3;
 700         struct _ATOM_PPLIB_POWERPLAYTABLE pplib;
 701         struct _ATOM_PPLIB_POWERPLAYTABLE2 pplib2;
 702         struct _ATOM_PPLIB_POWERPLAYTABLE3 pplib3;
 703 };
 704
 705 union pplib_clock_info {
 706         struct _ATOM_PPLIB_R600_CLOCK_INFO r600;
 707         struct _ATOM_PPLIB_RS780_CLOCK_INFO rs780;
 708         struct _ATOM_PPLIB_EVERGREEN_CLOCK_INFO evergreen;
 709         struct _ATOM_PPLIB_SUMO_CLOCK_INFO sumo;
 710 };
 711
 712 union pplib_power_state {
 713         struct _ATOM_PPLIB_STATE v1;
 714         struct _ATOM_PPLIB_STATE_V2 v2;
 715 };
 716
 717 static void rs780_parse_pplib_non_clock_info(struct radeon_device *rdev,
 718                                              struct radeon_ps *rps,
 719                                              struct _ATOM_PPLIB_NONCLOCK_INFO *non_clock_info,
 720                                              u8 table_rev)
 721 {
 722         rps->caps = le32_to_cpu(non_clock_info->ulCapsAndSettings);
 723         rps->class = le16_to_cpu(non_clock_info->usClassification);
 724         rps->class2 = le16_to_cpu(non_clock_info->usClassification2);
 725
 726         if (ATOM_PPLIB_NONCLOCKINFO_VER1 < table_rev) {
 727                 rps->vclk = le32_to_cpu(non_clock_info->ulVCLK);
 728                 rps->dclk = le32_to_cpu(non_clock_info->ulDCLK);
 729         } else {
 730                 rps->vclk = 0;
 731                 rps->dclk = 0;
 732         }
 733
 734         if (r600_is_uvd_state(rps->class, rps->class2)) {
 735                 if ((rps->vclk == 0) || (rps->dclk == 0)) {
 736                         rps->vclk = RS780_DEFAULT_VCLK_FREQ;
 737                         rps->dclk = RS780_DEFAULT_DCLK_FREQ;
 738                 }
 739         }
 740
 741         if (rps->class & ATOM_PPLIB_CLASSIFICATION_BOOT)
 742                 rdev->pm.dpm.boot_ps = rps;
 743         if (rps->class & ATOM_PPLIB_CLASSIFICATION_UVDSTATE)
 744                 rdev->pm.dpm.uvd_ps = rps;
 745 }
 746
 747 static void rs780_parse_pplib_clock_info(struct radeon_device *rdev,
 748                                          struct radeon_ps *rps,
 749                                          union pplib_clock_info *clock_info)
 750 {
 751         struct igp_ps *ps = rs780_get_ps(rps);
 752         u32 sclk;
 753
 754         sclk = le16_to_cpu(clock_info->rs780.usLowEngineClockLow);
 755         sclk |= clock_info->rs780.ucLowEngineClockHigh << 16;
 756         ps->sclk_low = sclk;
 757         sclk = le16_to_cpu(clock_info->rs780.usHighEngineClockLow);
 758         sclk |= clock_info->rs780.ucHighEngineClockHigh << 16;
 759         ps->sclk_high = sclk;
 760         switch (le16_to_cpu(clock_info->rs780.usVDDC)) {
 761         case ATOM_PPLIB_RS780_VOLTAGE_NONE:
 762         default:
 763                 ps->min_voltage = RS780_VDDC_LEVEL_UNKNOWN;
 764                 ps->max_voltage = RS780_VDDC_LEVEL_UNKNOWN;
 765                 break;
 766         case ATOM_PPLIB_RS780_VOLTAGE_LOW:
 767                 ps->min_voltage = RS780_VDDC_LEVEL_LOW;
 768                 ps->max_voltage = RS780_VDDC_LEVEL_LOW;
 769                 break;
 770         case ATOM_PPLIB_RS780_VOLTAGE_HIGH:
 771                 ps->min_voltage = RS780_VDDC_LEVEL_HIGH;
 772                 ps->max_voltage = RS780_VDDC_LEVEL_HIGH;
 773                 break;
 774         case ATOM_PPLIB_RS780_VOLTAGE_VARIABLE:
 775                 ps->min_voltage = RS780_VDDC_LEVEL_LOW;
 776                 ps->max_voltage = RS780_VDDC_LEVEL_HIGH;
 777                 break;
 778         }
 779         ps->flags = le32_to_cpu(clock_info->rs780.ulFlags);
 780
 781         if (rps->class & ATOM_PPLIB_CLASSIFICATION_BOOT) {
 782                 ps->sclk_low = rdev->clock.default_sclk;
 783                 ps->sclk_high = rdev->clock.default_sclk;
 784                 ps->min_voltage = RS780_VDDC_LEVEL_HIGH;
 785                 ps->max_voltage = RS780_VDDC_LEVEL_HIGH;
 786         }
 787 }
 788
 789 static int rs780_parse_power_table(struct radeon_device *rdev)
 790 {
 791         struct radeon_mode_info *mode_info = &rdev->mode_info;
 792         struct _ATOM_PPLIB_NONCLOCK_INFO *non_clock_info;
 793         union pplib_power_state *power_state;
 794         int i;
 795         union pplib_clock_info *clock_info;
 796         union power_info *power_info;
 797         int index = GetIndexIntoMasterTable(DATA, PowerPlayInfo);
 798         u16 data_offset;
 799         u8 frev, crev;
 800         struct igp_ps *ps;
 801
 802         if (!atom_parse_data_header(mode_info->atom_context, index, NULL,
 803                                    &frev, &crev, &data_offset))
 804                 return -EINVAL;
 805         power_info = (union power_info *)(mode_info->atom_context->bios + data_offset);
 806
 807         rdev->pm.dpm.ps = kcalloc(power_info->pplib.ucNumStates,
 808                                   sizeof(struct radeon_ps),
 809                                   GFP_KERNEL);
 810         if (!rdev->pm.dpm.ps)
 811                 return -ENOMEM;
 812
 813         for (i = 0; i < power_info->pplib.ucNumStates; i++) {
 814                 power_state = (union pplib_power_state *)
 815                         (mode_info->atom_context->bios + data_offset +
 816                          le16_to_cpu(power_info->pplib.usStateArrayOffset) +
 817                          i * power_info->pplib.ucStateEntrySize);
 818                 non_clock_info = (struct _ATOM_PPLIB_NONCLOCK_INFO *)
 819                         (mode_info->atom_context->bios + data_offset +
 820                          le16_to_cpu(power_info->pplib.usNonClockInfoArrayOffset) +
 821                          (power_state->v1.ucNonClockStateIndex *
 822                           power_info->pplib.ucNonClockSize));
 823                 if (power_info->pplib.ucStateEntrySize - 1) {
 824                         clock_info = (union pplib_clock_info *)
 825                                 (mode_info->atom_context->bios + data_offset +
 826                                  le16_to_cpu(power_info->pplib.usClockInfoArrayOffset) +
 827                                  (power_state->v1.ucClockStateIndices[0] *
 828                                   power_info->pplib.ucClockInfoSize));
 829                         ps = kzalloc(sizeof(struct igp_ps), GFP_KERNEL);
 830                         if (ps == NULL) {
 831                                 kfree(rdev->pm.dpm.ps);
 832                                 return -ENOMEM;
 833                         }
 834                         rdev->pm.dpm.ps[i].ps_priv = ps;
 835                         rs780_parse_pplib_non_clock_info(rdev, &rdev->pm.dpm.ps[i],
 836                                                          non_clock_info,
 837                                                          power_info->pplib.ucNonClockSize);
 838                         rs780_parse_pplib_clock_info(rdev,
 839                                                      &rdev->pm.dpm.ps[i],
 840                                                      clock_info);
 841                 }
 842         }
 843         rdev->pm.dpm.num_ps = power_info->pplib.ucNumStates;
 844         return 0;
 845 }
 846
 847 int rs780_dpm_init(struct radeon_device *rdev)
 848 {
 849         struct igp_power_info *pi;
 850         int index = GetIndexIntoMasterTable(DATA, IntegratedSystemInfo);
 851         union igp_info *info;
 852         u16 data_offset;
 853         u8 frev, crev;
 854         int ret;
 855
 856         pi = kzalloc(sizeof(struct igp_power_info), GFP_KERNEL);
 857         if (pi == NULL)
 858                 return -ENOMEM;
 859         rdev->pm.dpm.priv = pi;
 860
 861         ret = r600_get_platform_caps(rdev);
 862         if (ret)
 863                 return ret;
 864
 865         ret = rs780_parse_power_table(rdev);
 866         if (ret)
 867                 return ret;
 868
 869         pi->voltage_control = false;
 870         pi->gfx_clock_gating = true;
 871
 872         if (atom_parse_data_header(rdev->mode_info.atom_context, index, NULL,
 873                                    &frev, &crev, &data_offset)) {
 874                 info = (union igp_info *)(rdev->mode_info.atom_context->bios + data_offset);
 875
 876                 /* Get various system informations from bios */
 877                 switch (crev) {
 878                 case 1:
 879                         pi->num_of_cycles_in_period =
 880                                 info->info.ucNumberOfCyclesInPeriod;
 881                         pi->num_of_cycles_in_period |=
 882                                 info->info.ucNumberOfCyclesInPeriodHi << 8;
 883                         pi->invert_pwm_required =
 884                                 (pi->num_of_cycles_in_period & 0x8000) ? true : false;
 885                         pi->boot_voltage = info->info.ucStartingPWM_HighTime;
 886                         pi->max_voltage = info->info.ucMaxNBVoltage;
 887                         pi->max_voltage |= info->info.ucMaxNBVoltageHigh << 8;
 888                         pi->min_voltage = info->info.ucMinNBVoltage;
 889                         pi->min_voltage |= info->info.ucMinNBVoltageHigh << 8;
 890                         pi->inter_voltage_low =
 891                                 le16_to_cpu(info->info.usInterNBVoltageLow);
 892                         pi->inter_voltage_high =
 893                                 le16_to_cpu(info->info.usInterNBVoltageHigh);
 894                         pi->voltage_control = true;
 895                         pi->bootup_uma_clk = info->info.usK8MemoryClock * 100;
 896                         break;
 897                 case 2:
 898                         pi->num_of_cycles_in_period =
 899                                 le16_to_cpu(info->info_2.usNumberOfCyclesInPeriod);
 900                         pi->invert_pwm_required =
 901                                 (pi->num_of_cycles_in_period & 0x8000) ? true : false;
 902                         pi->boot_voltage =
 903                                 le16_to_cpu(info->info_2.usBootUpNBVoltage);
 904                         pi->max_voltage =
 905                                 le16_to_cpu(info->info_2.usMaxNBVoltage);
 906                         pi->min_voltage =
 907                                 le16_to_cpu(info->info_2.usMinNBVoltage);
 908                         pi->system_config =
 909                                 le32_to_cpu(info->info_2.ulSystemConfig);
 910                         pi->pwm_voltage_control =
 911                                 (pi->system_config & 0x4) ? true : false;
 912                         pi->voltage_control = true;
 913                         pi->bootup_uma_clk = le32_to_cpu(info->info_2.ulBootUpUMAClock);
 914                         break;
 915                 default:
 916                         DRM_ERROR("No integrated system info for your GPU\n");
 917                         return -EINVAL;
 918                 }
 919                 if (pi->min_voltage > pi->max_voltage)
 920                         pi->voltage_control = false;
 921                 if (pi->pwm_voltage_control) {
 922                         if ((pi->num_of_cycles_in_period == 0) ||
 923                             (pi->max_voltage == 0) ||
 924                             (pi->min_voltage == 0))
 925                                 pi->voltage_control = false;
 926                 } else {
 927                         if ((pi->num_of_cycles_in_period == 0) ||
 928                             (pi->max_voltage == 0))
 929                                 pi->voltage_control = false;
 930                 }
 931
 932                 return 0;
 933         }
 934         radeon_dpm_fini(rdev);
 935         return -EINVAL;
 936 }
 937
 938 void rs780_dpm_print_power_state(struct radeon_device *rdev,
 939                                  struct radeon_ps *rps)
 940 {
 941         struct igp_ps *ps = rs780_get_ps(rps);
 942
 943         r600_dpm_print_class_info(rps->class, rps->class2);
 944         r600_dpm_print_cap_info(rps->caps);
 945         printk("\tuvd    vclk: %d dclk: %d\n", rps->vclk, rps->dclk);
 946         printk("\t\tpower level 0    sclk: %u vddc_index: %d\n",
 947                ps->sclk_low, ps->min_voltage);
 948         printk("\t\tpower level 1    sclk: %u vddc_index: %d\n",
 949                ps->sclk_high, ps->max_voltage);
 950         r600_dpm_print_ps_status(rdev, rps);
 951 }
 952
 953 void rs780_dpm_fini(struct radeon_device *rdev)
 954 {
 955         int i;
 956
 957         for (i = 0; i < rdev->pm.dpm.num_ps; i++) {
 958                 kfree(rdev->pm.dpm.ps[i].ps_priv);
 959         }
 960         kfree(rdev->pm.dpm.ps);
 961         kfree(rdev->pm.dpm.priv);
 962 }
 963
 964 u32 rs780_dpm_get_sclk(struct radeon_device *rdev, bool low)
 965 {
 966         struct igp_ps *requested_state = rs780_get_ps(rdev->pm.dpm.requested_ps);
 967
 968         if (low)
 969                 return requested_state->sclk_low;
 970         else
 971                 return requested_state->sclk_high;
 972 }
 973
 974 u32 rs780_dpm_get_mclk(struct radeon_device *rdev, bool low)
 975 {
 976         struct igp_power_info *pi = rs780_get_pi(rdev);
 977
 978         return pi->bootup_uma_clk;
 979 }
 980
 981 void rs780_dpm_debugfs_print_current_performance_level(struct radeon_device *rdev,
 982                                                        struct seq_file *m)
 983 {
 984         struct radeon_ps *rps = rdev->pm.dpm.current_ps;
 985         struct igp_ps *ps = rs780_get_ps(rps);
 986         u32 current_fb_div = RREG32(FVTHROT_STATUS_REG0) & CURRENT_FEEDBACK_DIV_MASK;
 987         u32 func_cntl = RREG32(CG_SPLL_FUNC_CNTL);
 988         u32 ref_div = ((func_cntl & SPLL_REF_DIV_MASK) >> SPLL_REF_DIV_SHIFT) + 1;
 989         u32 post_div = ((func_cntl & SPLL_SW_HILEN_MASK) >> SPLL_SW_HILEN_SHIFT) + 1 +
 990                 ((func_cntl & SPLL_SW_LOLEN_MASK) >> SPLL_SW_LOLEN_SHIFT) + 1;
 991         u32 sclk = (rdev->clock.spll.reference_freq * current_fb_div) /
 992                 (post_div * ref_div);
 993
 994         seq_printf(m, "uvd    vclk: %d dclk: %d\n", rps->vclk, rps->dclk);
 995
 996         /* guess based on the current sclk */
 997         if (sclk < (ps->sclk_low + 500))
 998                 seq_printf(m, "power level 0    sclk: %u vddc_index: %d\n",
 999                            ps->sclk_low, ps->min_voltage);
1000         else
1001                 seq_printf(m, "power level 1    sclk: %u vddc_index: %d\n",
1002                            ps->sclk_high, ps->max_voltage);
1003 }
1004
1005 /* get the current sclk in 10 khz units */
1006 u32 rs780_dpm_get_current_sclk(struct radeon_device *rdev)
1007 {
1008         u32 current_fb_div = RREG32(FVTHROT_STATUS_REG0) & CURRENT_FEEDBACK_DIV_MASK;
1009         u32 func_cntl = RREG32(CG_SPLL_FUNC_CNTL);
1010         u32 ref_div = ((func_cntl & SPLL_REF_DIV_MASK) >> SPLL_REF_DIV_SHIFT) + 1;
1011         u32 post_div = ((func_cntl & SPLL_SW_HILEN_MASK) >> SPLL_SW_HILEN_SHIFT) + 1 +
1012                 ((func_cntl & SPLL_SW_LOLEN_MASK) >> SPLL_SW_LOLEN_SHIFT) + 1;
1013         u32 sclk = (rdev->clock.spll.reference_freq * current_fb_div) /
1014                 (post_div * ref_div);
1015
1016         return sclk;
1017 }
1018
1019 /* get the current mclk in 10 khz units */
1020 u32 rs780_dpm_get_current_mclk(struct radeon_device *rdev)
1021 {
1022         struct igp_power_info *pi = rs780_get_pi(rdev);
1023
1024         return pi->bootup_uma_clk;
1025 }
1026
1027 int rs780_dpm_force_performance_level(struct radeon_device *rdev,
1028                                       enum radeon_dpm_forced_level level)
1029 {
1030         struct igp_power_info *pi = rs780_get_pi(rdev);
1031         struct radeon_ps *rps = rdev->pm.dpm.current_ps;
1032         struct igp_ps *ps = rs780_get_ps(rps);
1033         struct atom_clock_dividers dividers;
1034         int ret;
1035
1036         rs780_clk_scaling_enable(rdev, false);
1037         rs780_voltage_scaling_enable(rdev, false);
1038
1039         if (level == RADEON_DPM_FORCED_LEVEL_HIGH) {
1040                 if (pi->voltage_control)
1041                         rs780_force_voltage(rdev, pi->max_voltage);
1042
1043                 ret = radeon_atom_get_clock_dividers(rdev, COMPUTE_ENGINE_PLL_PARAM,
1044                                                      ps->sclk_high, false, &dividers);
1045                 if (ret)
1046                         return ret;
1047
1048                 rs780_force_fbdiv(rdev, dividers.fb_div);
1049         } else if (level == RADEON_DPM_FORCED_LEVEL_LOW) {
1050                 ret = radeon_atom_get_clock_dividers(rdev, COMPUTE_ENGINE_PLL_PARAM,
1051                                                      ps->sclk_low, false, &dividers);
1052                 if (ret)
1053                         return ret;
1054
1055                 rs780_force_fbdiv(rdev, dividers.fb_div);
1056
1057                 if (pi->voltage_control)
1058                         rs780_force_voltage(rdev, pi->min_voltage);
1059         } else {
1060                 if (pi->voltage_control)
1061                         rs780_force_voltage(rdev, pi->max_voltage);
1062
1063                 if (ps->sclk_high != ps->sclk_low) {
1064                         WREG32_P(FVTHROT_FBDIV_REG1, 0, ~FORCE_FEEDBACK_DIV);
1065                         rs780_clk_scaling_enable(rdev, true);
1066                 }
1067
1068                 if (pi->voltage_control) {
1069                         rs780_voltage_scaling_enable(rdev, true);
1070                         rs780_enable_voltage_scaling(rdev, rps);
1071                 }
1072         }
1073
1074         rdev->pm.dpm.forced_level = level;
1075
1076         return 0;
1077 }