--- /dev/null
+/*
+ * Copyright 2011 Advanced Micro Devices, Inc.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be included in
+ * all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
+ * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
+ * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
+ * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
+ * OTHER DEALINGS IN THE SOFTWARE.
+ *
+ * Authors: Alex Deucher
+ */
+
+#include "drmP.h"
+#include "radeon.h"
+#include "rs780d.h"
+#include "r600_dpm.h"
+#include "rs780_dpm.h"
+#include "atom.h"
+
+static struct igp_ps *rs780_get_ps(struct radeon_ps *rps)
+{
+ struct igp_ps *ps = rps->ps_priv;
+
+ return ps;
+}
+
+static struct igp_power_info *rs780_get_pi(struct radeon_device *rdev)
+{
+ struct igp_power_info *pi = rdev->pm.dpm.priv;
+
+ return pi;
+}
+
+static void rs780_get_pm_mode_parameters(struct radeon_device *rdev)
+{
+ struct igp_power_info *pi = rs780_get_pi(rdev);
+ struct radeon_mode_info *minfo = &rdev->mode_info;
+ struct drm_crtc *crtc;
+ struct radeon_crtc *radeon_crtc;
+ int i;
+
+ /* defaults */
+ pi->crtc_id = 0;
+ pi->refresh_rate = 60;
+
+ for (i = 0; i < rdev->num_crtc; i++) {
+ crtc = (struct drm_crtc *)minfo->crtcs[i];
+ if (crtc && crtc->enabled) {
+ radeon_crtc = to_radeon_crtc(crtc);
+ pi->crtc_id = radeon_crtc->crtc_id;
+ if (crtc->mode.htotal && crtc->mode.vtotal)
+ pi->refresh_rate =
+ (crtc->mode.clock * 1000) /
+ (crtc->mode.htotal * crtc->mode.vtotal);
+ break;
+ }
+ }
+}
+
+static void rs780_voltage_scaling_enable(struct radeon_device *rdev, bool enable);
+
+static int rs780_initialize_dpm_power_state(struct radeon_device *rdev)
+{
+ struct atom_clock_dividers dividers;
+ struct igp_ps *default_state = rs780_get_ps(rdev->pm.dpm.boot_ps);
+ int i, ret;
+
+ ret = radeon_atom_get_clock_dividers(rdev, COMPUTE_ENGINE_PLL_PARAM,
+ default_state->sclk_low, false, ÷rs);
+ if (ret)
+ return ret;
+
+ r600_engine_clock_entry_set_reference_divider(rdev, 0, dividers.ref_div);
+ r600_engine_clock_entry_set_feedback_divider(rdev, 0, dividers.fb_div);
+ r600_engine_clock_entry_set_post_divider(rdev, 0, dividers.post_div);
+
+ if (dividers.enable_post_div)
+ r600_engine_clock_entry_enable_post_divider(rdev, 0, true);
+ else
+ r600_engine_clock_entry_enable_post_divider(rdev, 0, false);
+
+ r600_engine_clock_entry_set_step_time(rdev, 0, R600_SST_DFLT);
+ r600_engine_clock_entry_enable_pulse_skipping(rdev, 0, false);
+
+ r600_engine_clock_entry_enable(rdev, 0, true);
+ for (i = 1; i < R600_PM_NUMBER_OF_SCLKS; i++)
+ r600_engine_clock_entry_enable(rdev, i, false);
+
+ r600_enable_mclk_control(rdev, false);
+ r600_voltage_control_enable_pins(rdev, 0);
+
+ return 0;
+}
+
+static int rs780_initialize_dpm_parameters(struct radeon_device *rdev)
+{
+ int ret = 0;
+ int i;
+
+ r600_set_bsp(rdev, R600_BSU_DFLT, R600_BSP_DFLT);
+
+ r600_set_at(rdev, 0, 0, 0, 0);
+
+ r600_set_git(rdev, R600_GICST_DFLT);
+
+ for (i = 0; i < R600_PM_NUMBER_OF_TC; i++)
+ r600_set_tc(rdev, i, 0, 0);
+
+ r600_select_td(rdev, R600_TD_DFLT);
+ r600_set_vrc(rdev, 0);
+
+ r600_set_tpu(rdev, R600_TPU_DFLT);
+ r600_set_tpc(rdev, R600_TPC_DFLT);
+
+ r600_set_sstu(rdev, R600_SSTU_DFLT);
+ r600_set_sst(rdev, R600_SST_DFLT);
+
+ r600_set_fctu(rdev, R600_FCTU_DFLT);
+ r600_set_fct(rdev, R600_FCT_DFLT);
+
+ r600_set_vddc3d_oorsu(rdev, R600_VDDC3DOORSU_DFLT);
+ r600_set_vddc3d_oorphc(rdev, R600_VDDC3DOORPHC_DFLT);
+ r600_set_vddc3d_oorsdc(rdev, R600_VDDC3DOORSDC_DFLT);
+ r600_set_ctxcgtt3d_rphc(rdev, R600_CTXCGTT3DRPHC_DFLT);
+ r600_set_ctxcgtt3d_rsdc(rdev, R600_CTXCGTT3DRSDC_DFLT);
+
+ r600_vid_rt_set_vru(rdev, R600_VRU_DFLT);
+ r600_vid_rt_set_vrt(rdev, R600_VOLTAGERESPONSETIME_DFLT);
+ r600_vid_rt_set_ssu(rdev, R600_SPLLSTEPUNIT_DFLT);
+
+ ret = rs780_initialize_dpm_power_state(rdev);
+
+ r600_power_level_set_voltage_index(rdev, R600_POWER_LEVEL_LOW, 0);
+ r600_power_level_set_voltage_index(rdev, R600_POWER_LEVEL_MEDIUM, 0);
+ r600_power_level_set_voltage_index(rdev, R600_POWER_LEVEL_HIGH, 0);
+
+ r600_power_level_set_mem_clock_index(rdev, R600_POWER_LEVEL_LOW, 0);
+ r600_power_level_set_mem_clock_index(rdev, R600_POWER_LEVEL_MEDIUM, 0);
+ r600_power_level_set_mem_clock_index(rdev, R600_POWER_LEVEL_HIGH, 0);
+
+ r600_power_level_set_eng_clock_index(rdev, R600_POWER_LEVEL_LOW, 0);
+ r600_power_level_set_eng_clock_index(rdev, R600_POWER_LEVEL_MEDIUM, 0);
+ r600_power_level_set_eng_clock_index(rdev, R600_POWER_LEVEL_HIGH, 0);
+
+ r600_power_level_set_watermark_id(rdev, R600_POWER_LEVEL_LOW, R600_DISPLAY_WATERMARK_HIGH);
+ r600_power_level_set_watermark_id(rdev, R600_POWER_LEVEL_MEDIUM, R600_DISPLAY_WATERMARK_HIGH);
+ r600_power_level_set_watermark_id(rdev, R600_POWER_LEVEL_HIGH, R600_DISPLAY_WATERMARK_HIGH);
+
+ r600_power_level_enable(rdev, R600_POWER_LEVEL_CTXSW, false);
+ r600_power_level_enable(rdev, R600_POWER_LEVEL_HIGH, false);
+ r600_power_level_enable(rdev, R600_POWER_LEVEL_MEDIUM, false);
+ r600_power_level_enable(rdev, R600_POWER_LEVEL_LOW, true);
+
+ r600_power_level_set_enter_index(rdev, R600_POWER_LEVEL_LOW);
+
+ r600_set_vrc(rdev, RS780_CGFTV_DFLT);
+
+ return ret;
+}
+
+static void rs780_start_dpm(struct radeon_device *rdev)
+{
+ r600_enable_sclk_control(rdev, false);
+ r600_enable_mclk_control(rdev, false);
+
+ r600_dynamicpm_enable(rdev, true);
+
+ radeon_wait_for_vblank(rdev, 0);
+ radeon_wait_for_vblank(rdev, 1);
+
+ r600_enable_spll_bypass(rdev, true);
+ r600_wait_for_spll_change(rdev);
+ r600_enable_spll_bypass(rdev, false);
+ r600_wait_for_spll_change(rdev);
+
+ r600_enable_spll_bypass(rdev, true);
+ r600_wait_for_spll_change(rdev);
+ r600_enable_spll_bypass(rdev, false);
+ r600_wait_for_spll_change(rdev);
+
+ r600_enable_sclk_control(rdev, true);
+}
+
+
+static void rs780_preset_ranges_slow_clk_fbdiv_en(struct radeon_device *rdev)
+{
+ WREG32_P(FVTHROT_SLOW_CLK_FEEDBACK_DIV_REG1, RANGE_SLOW_CLK_FEEDBACK_DIV_EN,
+ ~RANGE_SLOW_CLK_FEEDBACK_DIV_EN);
+
+ WREG32_P(FVTHROT_SLOW_CLK_FEEDBACK_DIV_REG1,
+ RANGE0_SLOW_CLK_FEEDBACK_DIV(RS780_SLOWCLKFEEDBACKDIV_DFLT),
+ ~RANGE0_SLOW_CLK_FEEDBACK_DIV_MASK);
+}
+
+static void rs780_preset_starting_fbdiv(struct radeon_device *rdev)
+{
+ u32 fbdiv = (RREG32(CG_SPLL_FUNC_CNTL) & SPLL_FB_DIV_MASK) >> SPLL_FB_DIV_SHIFT;
+
+ WREG32_P(FVTHROT_FBDIV_REG1, STARTING_FEEDBACK_DIV(fbdiv),
+ ~STARTING_FEEDBACK_DIV_MASK);
+
+ WREG32_P(FVTHROT_FBDIV_REG2, FORCED_FEEDBACK_DIV(fbdiv),
+ ~FORCED_FEEDBACK_DIV_MASK);
+
+ WREG32_P(FVTHROT_FBDIV_REG1, FORCE_FEEDBACK_DIV, ~FORCE_FEEDBACK_DIV);
+}
+
+static void rs780_voltage_scaling_init(struct radeon_device *rdev)
+{
+ struct igp_power_info *pi = rs780_get_pi(rdev);
+ struct drm_device *dev = rdev->ddev;
+ u32 fv_throt_pwm_fb_div_range[3];
+ u32 fv_throt_pwm_range[4];
+
+ if (dev->pdev->device == 0x9614) {
+ fv_throt_pwm_fb_div_range[0] = RS780D_FVTHROTPWMFBDIVRANGEREG0_DFLT;
+ fv_throt_pwm_fb_div_range[1] = RS780D_FVTHROTPWMFBDIVRANGEREG1_DFLT;
+ fv_throt_pwm_fb_div_range[2] = RS780D_FVTHROTPWMFBDIVRANGEREG2_DFLT;
+ } else if ((dev->pdev->device == 0x9714) ||
+ (dev->pdev->device == 0x9715)) {
+ fv_throt_pwm_fb_div_range[0] = RS880D_FVTHROTPWMFBDIVRANGEREG0_DFLT;
+ fv_throt_pwm_fb_div_range[1] = RS880D_FVTHROTPWMFBDIVRANGEREG1_DFLT;
+ fv_throt_pwm_fb_div_range[2] = RS880D_FVTHROTPWMFBDIVRANGEREG2_DFLT;
+ } else {
+ fv_throt_pwm_fb_div_range[0] = RS780_FVTHROTPWMFBDIVRANGEREG0_DFLT;
+ fv_throt_pwm_fb_div_range[1] = RS780_FVTHROTPWMFBDIVRANGEREG1_DFLT;
+ fv_throt_pwm_fb_div_range[2] = RS780_FVTHROTPWMFBDIVRANGEREG2_DFLT;
+ }
+
+ if (pi->pwm_voltage_control) {
+ fv_throt_pwm_range[0] = pi->min_voltage;
+ fv_throt_pwm_range[1] = pi->min_voltage;
+ fv_throt_pwm_range[2] = pi->max_voltage;
+ fv_throt_pwm_range[3] = pi->max_voltage;
+ } else {
+ fv_throt_pwm_range[0] = pi->invert_pwm_required ?
+ RS780_FVTHROTPWMRANGE3_GPIO_DFLT : RS780_FVTHROTPWMRANGE0_GPIO_DFLT;
+ fv_throt_pwm_range[1] = pi->invert_pwm_required ?
+ RS780_FVTHROTPWMRANGE2_GPIO_DFLT : RS780_FVTHROTPWMRANGE1_GPIO_DFLT;
+ fv_throt_pwm_range[2] = pi->invert_pwm_required ?
+ RS780_FVTHROTPWMRANGE1_GPIO_DFLT : RS780_FVTHROTPWMRANGE2_GPIO_DFLT;
+ fv_throt_pwm_range[3] = pi->invert_pwm_required ?
+ RS780_FVTHROTPWMRANGE0_GPIO_DFLT : RS780_FVTHROTPWMRANGE3_GPIO_DFLT;
+ }
+
+ WREG32_P(FVTHROT_PWM_CTRL_REG0,
+ STARTING_PWM_HIGHTIME(pi->max_voltage),
+ ~STARTING_PWM_HIGHTIME_MASK);
+
+ WREG32_P(FVTHROT_PWM_CTRL_REG0,
+ NUMBER_OF_CYCLES_IN_PERIOD(pi->num_of_cycles_in_period),
+ ~NUMBER_OF_CYCLES_IN_PERIOD_MASK);
+
+ WREG32_P(FVTHROT_PWM_CTRL_REG0, FORCE_STARTING_PWM_HIGHTIME,
+ ~FORCE_STARTING_PWM_HIGHTIME);
+
+ if (pi->invert_pwm_required)
+ WREG32_P(FVTHROT_PWM_CTRL_REG0, INVERT_PWM_WAVEFORM, ~INVERT_PWM_WAVEFORM);
+ else
+ WREG32_P(FVTHROT_PWM_CTRL_REG0, 0, ~INVERT_PWM_WAVEFORM);
+
+ rs780_voltage_scaling_enable(rdev, true);
+
+ WREG32(FVTHROT_PWM_CTRL_REG1,
+ (MIN_PWM_HIGHTIME(pi->min_voltage) |
+ MAX_PWM_HIGHTIME(pi->max_voltage)));
+
+ WREG32(FVTHROT_PWM_US_REG0, RS780_FVTHROTPWMUSREG0_DFLT);
+ WREG32(FVTHROT_PWM_US_REG1, RS780_FVTHROTPWMUSREG1_DFLT);
+ WREG32(FVTHROT_PWM_DS_REG0, RS780_FVTHROTPWMDSREG0_DFLT);
+ WREG32(FVTHROT_PWM_DS_REG1, RS780_FVTHROTPWMDSREG1_DFLT);
+
+ WREG32_P(FVTHROT_PWM_FEEDBACK_DIV_REG1,
+ RANGE0_PWM_FEEDBACK_DIV(fv_throt_pwm_fb_div_range[0]),
+ ~RANGE0_PWM_FEEDBACK_DIV_MASK);
+
+ WREG32(FVTHROT_PWM_FEEDBACK_DIV_REG2,
+ (RANGE1_PWM_FEEDBACK_DIV(fv_throt_pwm_fb_div_range[1]) |
+ RANGE2_PWM_FEEDBACK_DIV(fv_throt_pwm_fb_div_range[2])));
+
+ WREG32(FVTHROT_PWM_FEEDBACK_DIV_REG3,
+ (RANGE0_PWM(fv_throt_pwm_range[1]) |
+ RANGE1_PWM(fv_throt_pwm_range[2])));
+ WREG32(FVTHROT_PWM_FEEDBACK_DIV_REG4,
+ (RANGE2_PWM(fv_throt_pwm_range[1]) |
+ RANGE3_PWM(fv_throt_pwm_range[2])));
+}
+
+static void rs780_clk_scaling_enable(struct radeon_device *rdev, bool enable)
+{
+ if (enable)
+ WREG32_P(FVTHROT_CNTRL_REG, ENABLE_FV_THROT | ENABLE_FV_UPDATE,
+ ~(ENABLE_FV_THROT | ENABLE_FV_UPDATE));
+ else
+ WREG32_P(FVTHROT_CNTRL_REG, 0,
+ ~(ENABLE_FV_THROT | ENABLE_FV_UPDATE));
+}
+
+static void rs780_voltage_scaling_enable(struct radeon_device *rdev, bool enable)
+{
+ if (enable)
+ WREG32_P(FVTHROT_CNTRL_REG, ENABLE_FV_THROT_IO, ~ENABLE_FV_THROT_IO);
+ else
+ WREG32_P(FVTHROT_CNTRL_REG, 0, ~ENABLE_FV_THROT_IO);
+}
+
+static void rs780_set_engine_clock_wfc(struct radeon_device *rdev)
+{
+ WREG32(FVTHROT_UTC0, RS780_FVTHROTUTC0_DFLT);
+ WREG32(FVTHROT_UTC1, RS780_FVTHROTUTC1_DFLT);
+ WREG32(FVTHROT_UTC2, RS780_FVTHROTUTC2_DFLT);
+ WREG32(FVTHROT_UTC3, RS780_FVTHROTUTC3_DFLT);
+ WREG32(FVTHROT_UTC4, RS780_FVTHROTUTC4_DFLT);
+
+ WREG32(FVTHROT_DTC0, RS780_FVTHROTDTC0_DFLT);
+ WREG32(FVTHROT_DTC1, RS780_FVTHROTDTC1_DFLT);
+ WREG32(FVTHROT_DTC2, RS780_FVTHROTDTC2_DFLT);
+ WREG32(FVTHROT_DTC3, RS780_FVTHROTDTC3_DFLT);
+ WREG32(FVTHROT_DTC4, RS780_FVTHROTDTC4_DFLT);
+}
+
+static void rs780_set_engine_clock_sc(struct radeon_device *rdev)
+{
+ WREG32_P(FVTHROT_FBDIV_REG2,
+ FB_DIV_TIMER_VAL(RS780_FBDIVTIMERVAL_DFLT),
+ ~FB_DIV_TIMER_VAL_MASK);
+
+ WREG32_P(FVTHROT_CNTRL_REG,
+ REFRESH_RATE_DIVISOR(0) | MINIMUM_CIP(0xf),
+ ~(REFRESH_RATE_DIVISOR_MASK | MINIMUM_CIP_MASK));
+}
+
+static void rs780_set_engine_clock_tdc(struct radeon_device *rdev)
+{
+ WREG32_P(FVTHROT_CNTRL_REG, 0, ~(FORCE_TREND_SEL | TREND_SEL_MODE));
+}
+
+static void rs780_set_engine_clock_ssc(struct radeon_device *rdev)
+{
+ WREG32(FVTHROT_FB_US_REG0, RS780_FVTHROTFBUSREG0_DFLT);
+ WREG32(FVTHROT_FB_US_REG1, RS780_FVTHROTFBUSREG1_DFLT);
+ WREG32(FVTHROT_FB_DS_REG0, RS780_FVTHROTFBDSREG0_DFLT);
+ WREG32(FVTHROT_FB_DS_REG1, RS780_FVTHROTFBDSREG1_DFLT);
+
+ WREG32_P(FVTHROT_FBDIV_REG1, MAX_FEEDBACK_STEP(1), ~MAX_FEEDBACK_STEP_MASK);
+}
+
+static void rs780_program_at(struct radeon_device *rdev)
+{
+ struct igp_power_info *pi = rs780_get_pi(rdev);
+
+ WREG32(FVTHROT_TARGET_REG, 30000000 / pi->refresh_rate);
+ WREG32(FVTHROT_CB1, 1000000 * 5 / pi->refresh_rate);
+ WREG32(FVTHROT_CB2, 1000000 * 10 / pi->refresh_rate);
+ WREG32(FVTHROT_CB3, 1000000 * 30 / pi->refresh_rate);
+ WREG32(FVTHROT_CB4, 1000000 * 50 / pi->refresh_rate);
+}
+
+static void rs780_disable_vbios_powersaving(struct radeon_device *rdev)
+{
+ WREG32_P(CG_INTGFX_MISC, 0, ~0xFFF00000);
+}
+
+static void rs780_force_voltage_to_high(struct radeon_device *rdev)
+{
+ struct igp_power_info *pi = rs780_get_pi(rdev);
+ struct igp_ps *current_state = rs780_get_ps(rdev->pm.dpm.current_ps);
+
+ if ((current_state->max_voltage == RS780_VDDC_LEVEL_HIGH) &&
+ (current_state->min_voltage == RS780_VDDC_LEVEL_HIGH))
+ return;
+
+ WREG32_P(GFX_MACRO_BYPASS_CNTL, SPLL_BYPASS_CNTL, ~SPLL_BYPASS_CNTL);
+
+ udelay(1);
+
+ WREG32_P(FVTHROT_PWM_CTRL_REG0,
+ STARTING_PWM_HIGHTIME(pi->max_voltage),
+ ~STARTING_PWM_HIGHTIME_MASK);
+
+ WREG32_P(FVTHROT_PWM_CTRL_REG0,
+ FORCE_STARTING_PWM_HIGHTIME, ~FORCE_STARTING_PWM_HIGHTIME);
+
+ WREG32_P(FVTHROT_PWM_FEEDBACK_DIV_REG1, 0,
+ ~RANGE_PWM_FEEDBACK_DIV_EN);
+
+ udelay(1);
+
+ WREG32_P(GFX_MACRO_BYPASS_CNTL, 0, ~SPLL_BYPASS_CNTL);
+}
+
+static int rs780_set_engine_clock_scaling(struct radeon_device *rdev)
+{
+ struct atom_clock_dividers min_dividers, max_dividers, current_max_dividers;
+ struct igp_ps *new_state = rs780_get_ps(rdev->pm.dpm.requested_ps);
+ struct igp_ps *old_state = rs780_get_ps(rdev->pm.dpm.current_ps);
+ int ret;
+
+ if ((new_state->sclk_high == old_state->sclk_high) &&
+ (new_state->sclk_low == old_state->sclk_low))
+ return 0;
+
+ ret = radeon_atom_get_clock_dividers(rdev, COMPUTE_ENGINE_PLL_PARAM,
+ new_state->sclk_low, false, &min_dividers);
+ if (ret)
+ return ret;
+
+ ret = radeon_atom_get_clock_dividers(rdev, COMPUTE_ENGINE_PLL_PARAM,
+ new_state->sclk_high, false, &max_dividers);
+ if (ret)
+ return ret;
+
+ ret = radeon_atom_get_clock_dividers(rdev, COMPUTE_ENGINE_PLL_PARAM,
+ old_state->sclk_high, false, ¤t_max_dividers);
+ if (ret)
+ return ret;
+
+ WREG32_P(GFX_MACRO_BYPASS_CNTL, SPLL_BYPASS_CNTL, ~SPLL_BYPASS_CNTL);
+
+ WREG32_P(FVTHROT_FBDIV_REG2, FORCED_FEEDBACK_DIV(max_dividers.fb_div),
+ ~FORCED_FEEDBACK_DIV_MASK);
+ WREG32_P(FVTHROT_FBDIV_REG1, STARTING_FEEDBACK_DIV(max_dividers.fb_div),
+ ~STARTING_FEEDBACK_DIV_MASK);
+ WREG32_P(FVTHROT_FBDIV_REG1, FORCE_FEEDBACK_DIV, ~FORCE_FEEDBACK_DIV);
+
+ udelay(100);
+
+ WREG32_P(GFX_MACRO_BYPASS_CNTL, 0, ~SPLL_BYPASS_CNTL);
+
+ if (max_dividers.fb_div > min_dividers.fb_div) {
+ WREG32_P(FVTHROT_FBDIV_REG0,
+ MIN_FEEDBACK_DIV(min_dividers.fb_div) |
+ MAX_FEEDBACK_DIV(max_dividers.fb_div),
+ ~(MIN_FEEDBACK_DIV_MASK | MAX_FEEDBACK_DIV_MASK));
+
+ WREG32_P(FVTHROT_FBDIV_REG1, 0, ~FORCE_FEEDBACK_DIV);
+ }
+
+ return 0;
+}
+
+static void rs780_set_engine_clock_spc(struct radeon_device *rdev)
+{
+ struct igp_ps *new_state = rs780_get_ps(rdev->pm.dpm.requested_ps);
+ struct igp_ps *old_state = rs780_get_ps(rdev->pm.dpm.current_ps);
+ struct igp_power_info *pi = rs780_get_pi(rdev);
+
+ if ((new_state->sclk_high == old_state->sclk_high) &&
+ (new_state->sclk_low == old_state->sclk_low))
+ return;
+
+ if (pi->crtc_id == 0)
+ WREG32_P(CG_INTGFX_MISC, 0, ~FVTHROT_VBLANK_SEL);
+ else
+ WREG32_P(CG_INTGFX_MISC, FVTHROT_VBLANK_SEL, ~FVTHROT_VBLANK_SEL);
+
+}
+
+static void rs780_activate_engine_clk_scaling(struct radeon_device *rdev)
+{
+ struct igp_ps *new_state = rs780_get_ps(rdev->pm.dpm.requested_ps);
+ struct igp_ps *old_state = rs780_get_ps(rdev->pm.dpm.current_ps);
+
+ if ((new_state->sclk_high == old_state->sclk_high) &&
+ (new_state->sclk_low == old_state->sclk_low))
+ return;
+
+ rs780_clk_scaling_enable(rdev, true);
+}
+
+static u32 rs780_get_voltage_for_vddc_level(struct radeon_device *rdev,
+ enum rs780_vddc_level vddc)
+{
+ struct igp_power_info *pi = rs780_get_pi(rdev);
+
+ if (vddc == RS780_VDDC_LEVEL_HIGH)
+ return pi->max_voltage;
+ else if (vddc == RS780_VDDC_LEVEL_LOW)
+ return pi->min_voltage;
+ else
+ return pi->max_voltage;
+}
+
+static void rs780_enable_voltage_scaling(struct radeon_device *rdev)
+{
+ struct igp_ps *new_state = rs780_get_ps(rdev->pm.dpm.requested_ps);
+ struct igp_power_info *pi = rs780_get_pi(rdev);
+ enum rs780_vddc_level vddc_high, vddc_low;
+
+ udelay(100);
+
+ if ((new_state->max_voltage == RS780_VDDC_LEVEL_HIGH) &&
+ (new_state->min_voltage == RS780_VDDC_LEVEL_HIGH))
+ return;
+
+ vddc_high = rs780_get_voltage_for_vddc_level(rdev,
+ new_state->max_voltage);
+ vddc_low = rs780_get_voltage_for_vddc_level(rdev,
+ new_state->min_voltage);
+
+ WREG32_P(GFX_MACRO_BYPASS_CNTL, SPLL_BYPASS_CNTL, ~SPLL_BYPASS_CNTL);
+
+ udelay(1);
+ if (vddc_high > vddc_low) {
+ WREG32_P(FVTHROT_PWM_FEEDBACK_DIV_REG1,
+ RANGE_PWM_FEEDBACK_DIV_EN, ~RANGE_PWM_FEEDBACK_DIV_EN);
+
+ WREG32_P(FVTHROT_PWM_CTRL_REG0, 0, ~FORCE_STARTING_PWM_HIGHTIME);
+ } else if (vddc_high == vddc_low) {
+ if (pi->max_voltage != vddc_high) {
+ WREG32_P(FVTHROT_PWM_CTRL_REG0,
+ STARTING_PWM_HIGHTIME(vddc_high),
+ ~STARTING_PWM_HIGHTIME_MASK);
+
+ WREG32_P(FVTHROT_PWM_CTRL_REG0,
+ FORCE_STARTING_PWM_HIGHTIME,
+ ~FORCE_STARTING_PWM_HIGHTIME);
+ }
+ }
+
+ WREG32_P(GFX_MACRO_BYPASS_CNTL, 0, ~SPLL_BYPASS_CNTL);
+}
+
+int rs780_dpm_enable(struct radeon_device *rdev)
+{
+ struct igp_power_info *pi = rs780_get_pi(rdev);
+
+ rs780_get_pm_mode_parameters(rdev);
+ rs780_disable_vbios_powersaving(rdev);
+
+ if (r600_dynamicpm_enabled(rdev))
+ return -EINVAL;
+ if (rs780_initialize_dpm_parameters(rdev))
+ return -EINVAL;
+ rs780_start_dpm(rdev);
+
+ rs780_preset_ranges_slow_clk_fbdiv_en(rdev);
+ rs780_preset_starting_fbdiv(rdev);
+ if (pi->voltage_control)
+ rs780_voltage_scaling_init(rdev);
+ rs780_clk_scaling_enable(rdev, true);
+ rs780_set_engine_clock_sc(rdev);
+ rs780_set_engine_clock_wfc(rdev);
+ rs780_program_at(rdev);
+ rs780_set_engine_clock_tdc(rdev);
+ rs780_set_engine_clock_ssc(rdev);
+
+ if (pi->gfx_clock_gating)
+ r600_gfx_clockgating_enable(rdev, true);
+
+ return 0;
+}
+
+void rs780_dpm_disable(struct radeon_device *rdev)
+{
+ struct igp_power_info *pi = rs780_get_pi(rdev);
+
+ r600_dynamicpm_enable(rdev, false);
+
+ rs780_clk_scaling_enable(rdev, false);
+ rs780_voltage_scaling_enable(rdev, false);
+
+ if (pi->gfx_clock_gating)
+ r600_gfx_clockgating_enable(rdev, false);
+}
+
+int rs780_dpm_set_power_state(struct radeon_device *rdev)
+{
+ struct igp_power_info *pi = rs780_get_pi(rdev);
+
+ rs780_get_pm_mode_parameters(rdev);
+
+ if (pi->voltage_control) {
+ rs780_force_voltage_to_high(rdev);
+ mdelay(5);
+ }
+
+ rs780_set_engine_clock_scaling(rdev);
+ rs780_set_engine_clock_spc(rdev);
+
+ rs780_activate_engine_clk_scaling(rdev);
+
+ if (pi->voltage_control)
+ rs780_enable_voltage_scaling(rdev);
+
+ return 0;
+}
+
+void rs780_dpm_setup_asic(struct radeon_device *rdev)
+{
+
+}
+
+void rs780_dpm_display_configuration_changed(struct radeon_device *rdev)
+{
+ rs780_get_pm_mode_parameters(rdev);
+ rs780_program_at(rdev);
+}
+
+union igp_info {
+ struct _ATOM_INTEGRATED_SYSTEM_INFO info;
+ struct _ATOM_INTEGRATED_SYSTEM_INFO_V2 info_2;
+};
+
+union power_info {
+ struct _ATOM_POWERPLAY_INFO info;
+ struct _ATOM_POWERPLAY_INFO_V2 info_2;
+ struct _ATOM_POWERPLAY_INFO_V3 info_3;
+ struct _ATOM_PPLIB_POWERPLAYTABLE pplib;
+ struct _ATOM_PPLIB_POWERPLAYTABLE2 pplib2;
+ struct _ATOM_PPLIB_POWERPLAYTABLE3 pplib3;
+};
+
+union pplib_clock_info {
+ struct _ATOM_PPLIB_R600_CLOCK_INFO r600;
+ struct _ATOM_PPLIB_RS780_CLOCK_INFO rs780;
+ struct _ATOM_PPLIB_EVERGREEN_CLOCK_INFO evergreen;
+ struct _ATOM_PPLIB_SUMO_CLOCK_INFO sumo;
+};
+
+union pplib_power_state {
+ struct _ATOM_PPLIB_STATE v1;
+ struct _ATOM_PPLIB_STATE_V2 v2;
+};
+
+static void rs780_parse_pplib_non_clock_info(struct radeon_device *rdev,
+ struct radeon_ps *rps,
+ struct _ATOM_PPLIB_NONCLOCK_INFO *non_clock_info,
+ u8 table_rev)
+{
+ rps->caps = le32_to_cpu(non_clock_info->ulCapsAndSettings);
+ rps->class = le16_to_cpu(non_clock_info->usClassification);
+ rps->class2 = le16_to_cpu(non_clock_info->usClassification2);
+
+ if (ATOM_PPLIB_NONCLOCKINFO_VER1 < table_rev) {
+ rps->vclk = le32_to_cpu(non_clock_info->ulVCLK);
+ rps->dclk = le32_to_cpu(non_clock_info->ulDCLK);
+ } else if (r600_is_uvd_state(rps->class, rps->class2)) {
+ rps->vclk = RS780_DEFAULT_VCLK_FREQ;
+ rps->dclk = RS780_DEFAULT_DCLK_FREQ;
+ } else {
+ rps->vclk = 0;
+ rps->dclk = 0;
+ }
+
+ if (rps->class & ATOM_PPLIB_CLASSIFICATION_BOOT)
+ rdev->pm.dpm.boot_ps = rps;
+ if (rps->class & ATOM_PPLIB_CLASSIFICATION_UVDSTATE)
+ rdev->pm.dpm.uvd_ps = rps;
+}
+
+static void rs780_parse_pplib_clock_info(struct radeon_device *rdev,
+ struct radeon_ps *rps,
+ union pplib_clock_info *clock_info)
+{
+ struct igp_ps *ps = rs780_get_ps(rps);
+ u32 sclk;
+
+ sclk = le16_to_cpu(clock_info->rs780.usLowEngineClockLow);
+ sclk |= clock_info->rs780.ucLowEngineClockHigh << 16;
+ ps->sclk_low = sclk;
+ sclk = le16_to_cpu(clock_info->rs780.usHighEngineClockLow);
+ sclk |= clock_info->rs780.ucHighEngineClockHigh << 16;
+ ps->sclk_high = sclk;
+ switch (le16_to_cpu(clock_info->rs780.usVDDC)) {
+ case ATOM_PPLIB_RS780_VOLTAGE_NONE:
+ default:
+ ps->min_voltage = RS780_VDDC_LEVEL_UNKNOWN;
+ ps->max_voltage = RS780_VDDC_LEVEL_UNKNOWN;
+ break;
+ case ATOM_PPLIB_RS780_VOLTAGE_LOW:
+ ps->min_voltage = RS780_VDDC_LEVEL_LOW;
+ ps->max_voltage = RS780_VDDC_LEVEL_LOW;
+ break;
+ case ATOM_PPLIB_RS780_VOLTAGE_HIGH:
+ ps->min_voltage = RS780_VDDC_LEVEL_HIGH;
+ ps->max_voltage = RS780_VDDC_LEVEL_HIGH;
+ break;
+ case ATOM_PPLIB_RS780_VOLTAGE_VARIABLE:
+ ps->min_voltage = RS780_VDDC_LEVEL_LOW;
+ ps->max_voltage = RS780_VDDC_LEVEL_HIGH;
+ break;
+ }
+ ps->flags = le32_to_cpu(clock_info->rs780.ulFlags);
+
+ if (rps->class & ATOM_PPLIB_CLASSIFICATION_BOOT) {
+ ps->sclk_low = rdev->clock.default_sclk;
+ ps->sclk_high = rdev->clock.default_sclk;
+ ps->min_voltage = RS780_VDDC_LEVEL_HIGH;
+ ps->max_voltage = RS780_VDDC_LEVEL_HIGH;
+ }
+}
+
+static int rs780_parse_power_table(struct radeon_device *rdev)
+{
+ struct radeon_mode_info *mode_info = &rdev->mode_info;
+ struct _ATOM_PPLIB_NONCLOCK_INFO *non_clock_info;
+ union pplib_power_state *power_state;
+ int i;
+ union pplib_clock_info *clock_info;
+ union power_info *power_info;
+ int index = GetIndexIntoMasterTable(DATA, PowerPlayInfo);
+ u16 data_offset;
+ u8 frev, crev;
+ struct igp_ps *ps;
+
+ if (!atom_parse_data_header(mode_info->atom_context, index, NULL,
+ &frev, &crev, &data_offset))
+ return -EINVAL;
+ power_info = (union power_info *)(mode_info->atom_context->bios + data_offset);
+
+ rdev->pm.dpm.ps = kzalloc(sizeof(struct radeon_ps) *
+ power_info->pplib.ucNumStates, GFP_KERNEL);
+ if (!rdev->pm.dpm.ps)
+ return -ENOMEM;
+ rdev->pm.dpm.platform_caps = le32_to_cpu(power_info->pplib.ulPlatformCaps);
+ rdev->pm.dpm.backbias_response_time = le16_to_cpu(power_info->pplib.usBackbiasTime);
+ rdev->pm.dpm.voltage_response_time = le16_to_cpu(power_info->pplib.usVoltageTime);
+
+ for (i = 0; i < power_info->pplib.ucNumStates; i++) {
+ power_state = (union pplib_power_state *)
+ (mode_info->atom_context->bios + data_offset +
+ le16_to_cpu(power_info->pplib.usStateArrayOffset) +
+ i * power_info->pplib.ucStateEntrySize);
+ non_clock_info = (struct _ATOM_PPLIB_NONCLOCK_INFO *)
+ (mode_info->atom_context->bios + data_offset +
+ le16_to_cpu(power_info->pplib.usNonClockInfoArrayOffset) +
+ (power_state->v1.ucNonClockStateIndex *
+ power_info->pplib.ucNonClockSize));
+ if (power_info->pplib.ucStateEntrySize - 1) {
+ clock_info = (union pplib_clock_info *)
+ (mode_info->atom_context->bios + data_offset +
+ le16_to_cpu(power_info->pplib.usClockInfoArrayOffset) +
+ (power_state->v1.ucClockStateIndices[0] *
+ power_info->pplib.ucClockInfoSize));
+ ps = kzalloc(sizeof(struct igp_ps), GFP_KERNEL);
+ if (ps == NULL) {
+ kfree(rdev->pm.dpm.ps);
+ return -ENOMEM;
+ }
+ rdev->pm.dpm.ps[i].ps_priv = ps;
+ rs780_parse_pplib_non_clock_info(rdev, &rdev->pm.dpm.ps[i],
+ non_clock_info,
+ power_info->pplib.ucNonClockSize);
+ rs780_parse_pplib_clock_info(rdev,
+ &rdev->pm.dpm.ps[i],
+ clock_info);
+ }
+ }
+ rdev->pm.dpm.num_ps = power_info->pplib.ucNumStates;
+ return 0;
+}
+
+int rs780_dpm_init(struct radeon_device *rdev)
+{
+ struct igp_power_info *pi;
+ int index = GetIndexIntoMasterTable(DATA, IntegratedSystemInfo);
+ union igp_info *info;
+ u16 data_offset;
+ u8 frev, crev;
+ int ret;
+
+ pi = kzalloc(sizeof(struct igp_power_info), GFP_KERNEL);
+ if (pi == NULL)
+ return -ENOMEM;
+ rdev->pm.dpm.priv = pi;
+
+ ret = rs780_parse_power_table(rdev);
+ if (ret)
+ return ret;
+
+ pi->voltage_control = false;
+ pi->gfx_clock_gating = true;
+
+ if (atom_parse_data_header(rdev->mode_info.atom_context, index, NULL,
+ &frev, &crev, &data_offset)) {
+ info = (union igp_info *)(rdev->mode_info.atom_context->bios + data_offset);
+
+ /* Get various system informations from bios */
+ switch (crev) {
+ case 1:
+ pi->num_of_cycles_in_period =
+ info->info.ucNumberOfCyclesInPeriod;
+ pi->num_of_cycles_in_period |=
+ info->info.ucNumberOfCyclesInPeriodHi << 8;
+ pi->invert_pwm_required =
+ (pi->num_of_cycles_in_period & 0x8000) ? true : false;
+ pi->boot_voltage = info->info.ucStartingPWM_HighTime;
+ pi->max_voltage = info->info.ucMaxNBVoltage;
+ pi->max_voltage |= info->info.ucMaxNBVoltageHigh << 8;
+ pi->min_voltage = info->info.ucMinNBVoltage;
+ pi->min_voltage |= info->info.ucMinNBVoltageHigh << 8;
+ pi->inter_voltage_low =
+ le16_to_cpu(info->info.usInterNBVoltageLow);
+ pi->inter_voltage_high =
+ le16_to_cpu(info->info.usInterNBVoltageHigh);
+ pi->voltage_control = true;
+ pi->bootup_uma_clk = info->info.usK8MemoryClock * 100;
+ break;
+ case 2:
+ pi->num_of_cycles_in_period =
+ le16_to_cpu(info->info_2.usNumberOfCyclesInPeriod);
+ pi->invert_pwm_required =
+ (pi->num_of_cycles_in_period & 0x8000) ? true : false;
+ pi->boot_voltage =
+ le16_to_cpu(info->info_2.usBootUpNBVoltage);
+ pi->max_voltage =
+ le16_to_cpu(info->info_2.usMaxNBVoltage);
+ pi->min_voltage =
+ le16_to_cpu(info->info_2.usMinNBVoltage);
+ pi->system_config =
+ le32_to_cpu(info->info_2.ulSystemConfig);
+ pi->pwm_voltage_control =
+ (pi->system_config & 0x4) ? true : false;
+ pi->voltage_control = true;
+ pi->bootup_uma_clk = le32_to_cpu(info->info_2.ulBootUpUMAClock);
+ break;
+ default:
+ DRM_ERROR("No integrated system info for your GPU\n");
+ return -EINVAL;
+ }
+ if (pi->min_voltage > pi->max_voltage)
+ pi->voltage_control = false;
+ if (pi->pwm_voltage_control) {
+ if ((pi->num_of_cycles_in_period == 0) ||
+ (pi->max_voltage == 0) ||
+ (pi->min_voltage == 0))
+ pi->voltage_control = false;
+ } else {
+ if ((pi->num_of_cycles_in_period == 0) ||
+ (pi->max_voltage == 0))
+ pi->voltage_control = false;
+ }
+
+ return 0;
+ }
+ radeon_dpm_fini(rdev);
+ return -EINVAL;
+}
+
+void rs780_dpm_print_power_state(struct radeon_device *rdev,
+ struct radeon_ps *rps)
+{
+ struct igp_ps *ps = rs780_get_ps(rps);
+
+ r600_dpm_print_class_info(rps->class, rps->class2);
+ r600_dpm_print_cap_info(rps->caps);
+ printk("\tuvd vclk: %d dclk: %d\n", rps->vclk, rps->dclk);
+ printk("\t\tpower level 0 sclk: %u vddc_index: %d\n",
+ ps->sclk_low, ps->min_voltage);
+ printk("\t\tpower level 1 sclk: %u vddc_index: %d\n",
+ ps->sclk_high, ps->max_voltage);
+ r600_dpm_print_ps_status(rdev, rps);
+}
+
+void rs780_dpm_fini(struct radeon_device *rdev)
+{
+ int i;
+
+ for (i = 0; i < rdev->pm.dpm.num_ps; i++) {
+ kfree(rdev->pm.dpm.ps[i].ps_priv);
+ }
+ kfree(rdev->pm.dpm.ps);
+ kfree(rdev->pm.dpm.priv);
+}
+
+u32 rs780_dpm_get_sclk(struct radeon_device *rdev, bool low)
+{
+ struct igp_ps *requested_state = rs780_get_ps(rdev->pm.dpm.requested_ps);
+
+ if (low)
+ return requested_state->sclk_low;
+ else
+ return requested_state->sclk_high;
+}
+
+u32 rs780_dpm_get_mclk(struct radeon_device *rdev, bool low)
+{
+ struct igp_power_info *pi = rs780_get_pi(rdev);
+
+ return pi->bootup_uma_clk;
+}
projects / karo-tx-linux.git / blobdiff