--- /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 "rv6xxd.h"
+#include "r600_dpm.h"
+#include "rv6xx_dpm.h"
+#include "atom.h"
+
+static u32 rv6xx_scale_count_given_unit(struct radeon_device *rdev,
+ u32 unscaled_count, u32 unit);
+
+static struct rv6xx_ps *rv6xx_get_ps(struct radeon_ps *rps)
+{
+ struct rv6xx_ps *ps = rps->ps_priv;
+
+ return ps;
+}
+
+static struct rv6xx_power_info *rv6xx_get_pi(struct radeon_device *rdev)
+{
+ struct rv6xx_power_info *pi = rdev->pm.dpm.priv;
+
+ return pi;
+}
+
+static void rv6xx_force_pcie_gen1(struct radeon_device *rdev)
+{
+ u32 tmp;
+ int i;
+
+ tmp = RREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL);
+ tmp &= LC_GEN2_EN;
+ WREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL, tmp);
+
+ tmp = RREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL);
+ tmp |= LC_INITIATE_LINK_SPEED_CHANGE;
+ WREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL, tmp);
+
+ for (i = 0; i < rdev->usec_timeout; i++) {
+ if (!(RREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL) & LC_CURRENT_DATA_RATE))
+ break;
+ udelay(1);
+ }
+
+ tmp = RREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL);
+ tmp &= ~LC_INITIATE_LINK_SPEED_CHANGE;
+ WREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL, tmp);
+}
+
+static void rv6xx_enable_pcie_gen2_support(struct radeon_device *rdev)
+{
+ u32 tmp;
+
+ tmp = RREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL);
+
+ if ((tmp & LC_OTHER_SIDE_EVER_SENT_GEN2) &&
+ (tmp & LC_OTHER_SIDE_SUPPORTS_GEN2)) {
+ tmp |= LC_GEN2_EN;
+ WREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL, tmp);
+ }
+}
+
+static void rv6xx_enable_bif_dynamic_pcie_gen2(struct radeon_device *rdev,
+ bool enable)
+{
+ u32 tmp;
+
+ tmp = RREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL) & ~LC_HW_VOLTAGE_IF_CONTROL_MASK;
+ if (enable)
+ tmp |= LC_HW_VOLTAGE_IF_CONTROL(1);
+ else
+ tmp |= LC_HW_VOLTAGE_IF_CONTROL(0);
+ WREG32_PCIE_PORT(PCIE_LC_SPEED_CNTL, tmp);
+}
+
+static void rv6xx_enable_l0s(struct radeon_device *rdev)
+{
+ u32 tmp;
+
+ tmp = RREG32_PCIE_PORT(PCIE_LC_CNTL) & ~LC_L0S_INACTIVITY_MASK;
+ tmp |= LC_L0S_INACTIVITY(3);
+ WREG32_PCIE_PORT(PCIE_LC_CNTL, tmp);
+}
+
+static void rv6xx_enable_l1(struct radeon_device *rdev)
+{
+ u32 tmp;
+
+ tmp = RREG32_PCIE_PORT(PCIE_LC_CNTL);
+ tmp &= ~LC_L1_INACTIVITY_MASK;
+ tmp |= LC_L1_INACTIVITY(4);
+ tmp &= ~LC_PMI_TO_L1_DIS;
+ tmp &= ~LC_ASPM_TO_L1_DIS;
+ WREG32_PCIE_PORT(PCIE_LC_CNTL, tmp);
+}
+
+static void rv6xx_enable_pll_sleep_in_l1(struct radeon_device *rdev)
+{
+ u32 tmp;
+
+ tmp = RREG32_PCIE_PORT(PCIE_LC_CNTL) & ~LC_L1_INACTIVITY_MASK;
+ tmp |= LC_L1_INACTIVITY(8);
+ WREG32_PCIE_PORT(PCIE_LC_CNTL, tmp);
+
+ /* NOTE, this is a PCIE indirect reg, not PCIE PORT */
+ tmp = RREG32_PCIE(PCIE_P_CNTL);
+ tmp |= P_PLL_PWRDN_IN_L1L23;
+ tmp &= ~P_PLL_BUF_PDNB;
+ tmp &= ~P_PLL_PDNB;
+ tmp |= P_ALLOW_PRX_FRONTEND_SHUTOFF;
+ WREG32_PCIE(PCIE_P_CNTL, tmp);
+}
+
+static int rv6xx_convert_clock_to_stepping(struct radeon_device *rdev,
+ u32 clock, struct rv6xx_sclk_stepping *step)
+{
+ int ret;
+ struct atom_clock_dividers dividers;
+
+ ret = radeon_atom_get_clock_dividers(rdev, COMPUTE_ENGINE_PLL_PARAM,
+ clock, false, ÷rs);
+ if (ret)
+ return ret;
+
+ if (dividers.enable_post_div)
+ step->post_divider = 2 + (dividers.post_div & 0xF) + (dividers.post_div >> 4);
+ else
+ step->post_divider = 1;
+
+ step->vco_frequency = clock * step->post_divider;
+
+ return 0;
+}
+
+static void rv6xx_output_stepping(struct radeon_device *rdev,
+ u32 step_index, struct rv6xx_sclk_stepping *step)
+{
+ struct rv6xx_power_info *pi = rv6xx_get_pi(rdev);
+ u32 ref_clk = rdev->clock.spll.reference_freq;
+ u32 fb_divider;
+ u32 spll_step_count = rv6xx_scale_count_given_unit(rdev,
+ R600_SPLLSTEPTIME_DFLT *
+ pi->spll_ref_div,
+ R600_SPLLSTEPUNIT_DFLT);
+
+ r600_engine_clock_entry_enable(rdev, step_index, true);
+ r600_engine_clock_entry_enable_pulse_skipping(rdev, step_index, false);
+
+ if (step->post_divider == 1)
+ r600_engine_clock_entry_enable_post_divider(rdev, step_index, false);
+ else {
+ u32 lo_len = (step->post_divider - 2) / 2;
+ u32 hi_len = step->post_divider - 2 - lo_len;
+
+ r600_engine_clock_entry_enable_post_divider(rdev, step_index, true);
+ r600_engine_clock_entry_set_post_divider(rdev, step_index, (hi_len << 4) | lo_len);
+ }
+
+ fb_divider = ((step->vco_frequency * pi->spll_ref_div) / ref_clk) >>
+ pi->fb_div_scale;
+
+ r600_engine_clock_entry_set_reference_divider(rdev, step_index,
+ pi->spll_ref_div - 1);
+ r600_engine_clock_entry_set_feedback_divider(rdev, step_index, fb_divider);
+ r600_engine_clock_entry_set_step_time(rdev, step_index, spll_step_count);
+
+}
+
+static struct rv6xx_sclk_stepping rv6xx_next_vco_step(struct radeon_device *rdev,
+ struct rv6xx_sclk_stepping *cur,
+ bool increasing_vco, u32 step_size)
+{
+ struct rv6xx_sclk_stepping next;
+
+ next.post_divider = cur->post_divider;
+
+ if (increasing_vco)
+ next.vco_frequency = (cur->vco_frequency * (100 + step_size)) / 100;
+ else
+ next.vco_frequency = (cur->vco_frequency * 100 + 99 + step_size) / (100 + step_size);
+
+ return next;
+}
+
+static bool rv6xx_can_step_post_div(struct radeon_device *rdev,
+ struct rv6xx_sclk_stepping *cur,
+ struct rv6xx_sclk_stepping *target)
+{
+ return (cur->post_divider > target->post_divider) &&
+ ((cur->vco_frequency * target->post_divider) <=
+ (target->vco_frequency * (cur->post_divider - 1)));
+}
+
+static struct rv6xx_sclk_stepping rv6xx_next_post_div_step(struct radeon_device *rdev,
+ struct rv6xx_sclk_stepping *cur,
+ struct rv6xx_sclk_stepping *target)
+{
+ struct rv6xx_sclk_stepping next = *cur;
+
+ while (rv6xx_can_step_post_div(rdev, &next, target))
+ next.post_divider--;
+
+ return next;
+}
+
+static bool rv6xx_reached_stepping_target(struct radeon_device *rdev,
+ struct rv6xx_sclk_stepping *cur,
+ struct rv6xx_sclk_stepping *target,
+ bool increasing_vco)
+{
+ return (increasing_vco && (cur->vco_frequency >= target->vco_frequency)) ||
+ (!increasing_vco && (cur->vco_frequency <= target->vco_frequency));
+}
+
+static void rv6xx_generate_steps(struct radeon_device *rdev,
+ u32 low, u32 high,
+ u32 start_index, u8 *end_index)
+{
+ struct rv6xx_sclk_stepping cur;
+ struct rv6xx_sclk_stepping target;
+ bool increasing_vco;
+ u32 step_index = start_index;
+
+ rv6xx_convert_clock_to_stepping(rdev, low, &cur);
+ rv6xx_convert_clock_to_stepping(rdev, high, &target);
+
+ rv6xx_output_stepping(rdev, step_index++, &cur);
+
+ increasing_vco = (target.vco_frequency >= cur.vco_frequency);
+
+ if (target.post_divider > cur.post_divider)
+ cur.post_divider = target.post_divider;
+
+ while (1) {
+ struct rv6xx_sclk_stepping next;
+
+ if (rv6xx_can_step_post_div(rdev, &cur, &target))
+ next = rv6xx_next_post_div_step(rdev, &cur, &target);
+ else
+ next = rv6xx_next_vco_step(rdev, &cur, increasing_vco, R600_VCOSTEPPCT_DFLT);
+
+ if (rv6xx_reached_stepping_target(rdev, &next, &target, increasing_vco)) {
+ struct rv6xx_sclk_stepping tiny =
+ rv6xx_next_vco_step(rdev, &target, !increasing_vco, R600_ENDINGVCOSTEPPCT_DFLT);
+ tiny.post_divider = next.post_divider;
+
+ if (!rv6xx_reached_stepping_target(rdev, &tiny, &cur, !increasing_vco))
+ rv6xx_output_stepping(rdev, step_index++, &tiny);
+
+ if ((next.post_divider != target.post_divider) &&
+ (next.vco_frequency != target.vco_frequency)) {
+ struct rv6xx_sclk_stepping final_vco;
+
+ final_vco.vco_frequency = target.vco_frequency;
+ final_vco.post_divider = next.post_divider;
+
+ rv6xx_output_stepping(rdev, step_index++, &final_vco);
+ }
+
+ rv6xx_output_stepping(rdev, step_index++, &target);
+ break;
+ } else
+ rv6xx_output_stepping(rdev, step_index++, &next);
+
+ cur = next;
+ }
+
+ *end_index = (u8)step_index - 1;
+
+}
+
+static void rv6xx_generate_single_step(struct radeon_device *rdev,
+ u32 clock, u32 index)
+{
+ struct rv6xx_sclk_stepping step;
+
+ rv6xx_convert_clock_to_stepping(rdev, clock, &step);
+ rv6xx_output_stepping(rdev, index, &step);
+}
+
+static void rv6xx_invalidate_intermediate_steps_range(struct radeon_device *rdev,
+ u32 start_index, u32 end_index)
+{
+ u32 step_index;
+
+ for (step_index = start_index + 1; step_index < end_index; step_index++)
+ r600_engine_clock_entry_enable(rdev, step_index, false);
+}
+
+static void rv6xx_set_engine_spread_spectrum_clk_s(struct radeon_device *rdev,
+ u32 index, u32 clk_s)
+{
+ WREG32_P(CG_SPLL_SPREAD_SPECTRUM_LOW + (index * 4),
+ CLKS(clk_s), ~CLKS_MASK);
+}
+
+static void rv6xx_set_engine_spread_spectrum_clk_v(struct radeon_device *rdev,
+ u32 index, u32 clk_v)
+{
+ WREG32_P(CG_SPLL_SPREAD_SPECTRUM_LOW + (index * 4),
+ CLKV(clk_v), ~CLKV_MASK);
+}
+
+static void rv6xx_enable_engine_spread_spectrum(struct radeon_device *rdev,
+ u32 index, bool enable)
+{
+ if (enable)
+ WREG32_P(CG_SPLL_SPREAD_SPECTRUM_LOW + (index * 4),
+ SSEN, ~SSEN);
+ else
+ WREG32_P(CG_SPLL_SPREAD_SPECTRUM_LOW + (index * 4),
+ 0, ~SSEN);
+}
+
+static void rv6xx_set_memory_spread_spectrum_clk_s(struct radeon_device *rdev,
+ u32 clk_s)
+{
+ WREG32_P(CG_MPLL_SPREAD_SPECTRUM, CLKS(clk_s), ~CLKS_MASK);
+}
+
+static void rv6xx_set_memory_spread_spectrum_clk_v(struct radeon_device *rdev,
+ u32 clk_v)
+{
+ WREG32_P(CG_MPLL_SPREAD_SPECTRUM, CLKV(clk_v), ~CLKV_MASK);
+}
+
+static void rv6xx_enable_memory_spread_spectrum(struct radeon_device *rdev,
+ bool enable)
+{
+ if (enable)
+ WREG32_P(CG_MPLL_SPREAD_SPECTRUM, SSEN, ~SSEN);
+ else
+ WREG32_P(CG_MPLL_SPREAD_SPECTRUM, 0, ~SSEN);
+}
+
+static void rv6xx_enable_dynamic_spread_spectrum(struct radeon_device *rdev,
+ bool enable)
+{
+ if (enable)
+ WREG32_P(GENERAL_PWRMGT, DYN_SPREAD_SPECTRUM_EN, ~DYN_SPREAD_SPECTRUM_EN);
+ else
+ WREG32_P(GENERAL_PWRMGT, 0, ~DYN_SPREAD_SPECTRUM_EN);
+}
+
+static void rv6xx_memory_clock_entry_enable_post_divider(struct radeon_device *rdev,
+ u32 index, bool enable)
+{
+ if (enable)
+ WREG32_P(MPLL_FREQ_LEVEL_0 + (index * 4),
+ LEVEL0_MPLL_DIV_EN, ~LEVEL0_MPLL_DIV_EN);
+ else
+ WREG32_P(MPLL_FREQ_LEVEL_0 + (index * 4), 0, ~LEVEL0_MPLL_DIV_EN);
+}
+
+static void rv6xx_memory_clock_entry_set_post_divider(struct radeon_device *rdev,
+ u32 index, u32 divider)
+{
+ WREG32_P(MPLL_FREQ_LEVEL_0 + (index * 4),
+ LEVEL0_MPLL_POST_DIV(divider), ~LEVEL0_MPLL_POST_DIV_MASK);
+}
+
+static void rv6xx_memory_clock_entry_set_feedback_divider(struct radeon_device *rdev,
+ u32 index, u32 divider)
+{
+ WREG32_P(MPLL_FREQ_LEVEL_0 + (index * 4), LEVEL0_MPLL_FB_DIV(divider),
+ ~LEVEL0_MPLL_FB_DIV_MASK);
+}
+
+static void rv6xx_memory_clock_entry_set_reference_divider(struct radeon_device *rdev,
+ u32 index, u32 divider)
+{
+ WREG32_P(MPLL_FREQ_LEVEL_0 + (index * 4),
+ LEVEL0_MPLL_REF_DIV(divider), ~LEVEL0_MPLL_REF_DIV_MASK);
+}
+
+static void rv6xx_vid_response_set_brt(struct radeon_device *rdev, u32 rt)
+{
+ WREG32_P(VID_RT, BRT(rt), ~BRT_MASK);
+}
+
+static void rv6xx_enable_engine_feedback_and_reference_sync(struct radeon_device *rdev)
+{
+ WREG32_P(SPLL_CNTL_MODE, SPLL_DIV_SYNC, ~SPLL_DIV_SYNC);
+}
+
+static u64 rv6xx_clocks_per_unit(u32 unit)
+{
+ u64 tmp = 1 << (2 * unit);
+
+ return tmp;
+}
+
+static u32 rv6xx_scale_count_given_unit(struct radeon_device *rdev,
+ u32 unscaled_count, u32 unit)
+{
+ u32 count_per_unit = (u32)rv6xx_clocks_per_unit(unit);
+
+ return (unscaled_count + count_per_unit - 1) / count_per_unit;
+}
+
+static u32 rv6xx_compute_count_for_delay(struct radeon_device *rdev,
+ u32 delay_us, u32 unit)
+{
+ u32 ref_clk = rdev->clock.spll.reference_freq;
+
+ return rv6xx_scale_count_given_unit(rdev, delay_us * (ref_clk / 100), unit);
+}
+
+static void rv6xx_calculate_engine_speed_stepping_parameters(struct radeon_device *rdev,
+ struct rv6xx_ps *state)
+{
+ struct rv6xx_power_info *pi = rv6xx_get_pi(rdev);
+
+ pi->hw.sclks[R600_POWER_LEVEL_LOW] =
+ state->low.sclk;
+ pi->hw.sclks[R600_POWER_LEVEL_MEDIUM] =
+ state->medium.sclk;
+ pi->hw.sclks[R600_POWER_LEVEL_HIGH] =
+ state->high.sclk;
+
+ pi->hw.low_sclk_index = R600_POWER_LEVEL_LOW;
+ pi->hw.medium_sclk_index = R600_POWER_LEVEL_MEDIUM;
+ pi->hw.high_sclk_index = R600_POWER_LEVEL_HIGH;
+}
+
+static void rv6xx_calculate_memory_clock_stepping_parameters(struct radeon_device *rdev,
+ struct rv6xx_ps *state)
+{
+ struct rv6xx_power_info *pi = rv6xx_get_pi(rdev);
+
+ pi->hw.mclks[R600_POWER_LEVEL_CTXSW] =
+ state->high.mclk;
+ pi->hw.mclks[R600_POWER_LEVEL_HIGH] =
+ state->high.mclk;
+ pi->hw.mclks[R600_POWER_LEVEL_MEDIUM] =
+ state->medium.mclk;
+ pi->hw.mclks[R600_POWER_LEVEL_LOW] =
+ state->low.mclk;
+
+ pi->hw.high_mclk_index = R600_POWER_LEVEL_HIGH;
+
+ if (state->high.mclk == state->medium.mclk)
+ pi->hw.medium_mclk_index =
+ pi->hw.high_mclk_index;
+ else
+ pi->hw.medium_mclk_index = R600_POWER_LEVEL_MEDIUM;
+
+
+ if (state->medium.mclk == state->low.mclk)
+ pi->hw.low_mclk_index =
+ pi->hw.medium_mclk_index;
+ else
+ pi->hw.low_mclk_index = R600_POWER_LEVEL_LOW;
+}
+
+static void rv6xx_calculate_voltage_stepping_parameters(struct radeon_device *rdev,
+ struct rv6xx_ps *state)
+{
+ struct rv6xx_power_info *pi = rv6xx_get_pi(rdev);
+
+ pi->hw.vddc[R600_POWER_LEVEL_CTXSW] = state->high.vddc;
+ pi->hw.vddc[R600_POWER_LEVEL_HIGH] = state->high.vddc;
+ pi->hw.vddc[R600_POWER_LEVEL_MEDIUM] = state->medium.vddc;
+ pi->hw.vddc[R600_POWER_LEVEL_LOW] = state->low.vddc;
+
+ pi->hw.backbias[R600_POWER_LEVEL_CTXSW] =
+ (state->high.flags & ATOM_PPLIB_R600_FLAGS_BACKBIASENABLE) ? true : false;
+ pi->hw.backbias[R600_POWER_LEVEL_HIGH] =
+ (state->high.flags & ATOM_PPLIB_R600_FLAGS_BACKBIASENABLE) ? true : false;
+ pi->hw.backbias[R600_POWER_LEVEL_MEDIUM] =
+ (state->medium.flags & ATOM_PPLIB_R600_FLAGS_BACKBIASENABLE) ? true : false;
+ pi->hw.backbias[R600_POWER_LEVEL_LOW] =
+ (state->low.flags & ATOM_PPLIB_R600_FLAGS_BACKBIASENABLE) ? true : false;
+
+ pi->hw.pcie_gen2[R600_POWER_LEVEL_HIGH] =
+ (state->high.flags & ATOM_PPLIB_R600_FLAGS_PCIEGEN2) ? true : false;
+ pi->hw.pcie_gen2[R600_POWER_LEVEL_MEDIUM] =
+ (state->medium.flags & ATOM_PPLIB_R600_FLAGS_PCIEGEN2) ? true : false;
+ pi->hw.pcie_gen2[R600_POWER_LEVEL_LOW] =
+ (state->low.flags & ATOM_PPLIB_R600_FLAGS_PCIEGEN2) ? true : false;
+
+ pi->hw.high_vddc_index = R600_POWER_LEVEL_HIGH;
+
+ if ((state->high.vddc == state->medium.vddc) &&
+ ((state->high.flags & ATOM_PPLIB_R600_FLAGS_BACKBIASENABLE) ==
+ (state->medium.flags & ATOM_PPLIB_R600_FLAGS_BACKBIASENABLE)))
+ pi->hw.medium_vddc_index =
+ pi->hw.high_vddc_index;
+ else
+ pi->hw.medium_vddc_index = R600_POWER_LEVEL_MEDIUM;
+
+ if ((state->medium.vddc == state->low.vddc) &&
+ ((state->medium.flags & ATOM_PPLIB_R600_FLAGS_BACKBIASENABLE) ==
+ (state->low.flags & ATOM_PPLIB_R600_FLAGS_BACKBIASENABLE)))
+ pi->hw.low_vddc_index =
+ pi->hw.medium_vddc_index;
+ else
+ pi->hw.medium_vddc_index = R600_POWER_LEVEL_LOW;
+}
+
+static inline u32 rv6xx_calculate_vco_frequency(u32 ref_clock,
+ struct atom_clock_dividers *dividers,
+ u32 fb_divider_scale)
+{
+ return ref_clock * ((dividers->fb_div & ~1) << fb_divider_scale) /
+ (dividers->ref_div + 1);
+}
+
+static inline u32 rv6xx_calculate_spread_spectrum_clk_v(u32 vco_freq, u32 ref_freq,
+ u32 ss_rate, u32 ss_percent,
+ u32 fb_divider_scale)
+{
+ u32 fb_divider = vco_freq / ref_freq;
+
+ return (ss_percent * ss_rate * 4 * (fb_divider * fb_divider) /
+ (5375 * ((vco_freq * 10) / (4096 >> fb_divider_scale))));
+}
+
+static inline u32 rv6xx_calculate_spread_spectrum_clk_s(u32 ss_rate, u32 ref_freq)
+{
+ return (((ref_freq * 10) / (ss_rate * 2)) - 1) / 4;
+}
+
+static void rv6xx_program_engine_spread_spectrum(struct radeon_device *rdev,
+ u32 clock, enum r600_power_level level)
+{
+ u32 ref_clk = rdev->clock.spll.reference_freq;
+ struct rv6xx_power_info *pi = rv6xx_get_pi(rdev);
+ struct atom_clock_dividers dividers;
+ struct radeon_atom_ss ss;
+ u32 vco_freq, clk_v, clk_s;
+
+ rv6xx_enable_engine_spread_spectrum(rdev, level, false);
+
+ if (clock && pi->sclk_ss) {
+ if (radeon_atom_get_clock_dividers(rdev, COMPUTE_ENGINE_PLL_PARAM, clock, false, ÷rs) == 0) {
+ vco_freq = rv6xx_calculate_vco_frequency(ref_clk, ÷rs,
+ pi->fb_div_scale);
+
+ if (radeon_atombios_get_asic_ss_info(rdev, &ss,
+ ASIC_INTERNAL_ENGINE_SS, vco_freq)) {
+ clk_v = rv6xx_calculate_spread_spectrum_clk_v(vco_freq,
+ (ref_clk / (dividers.ref_div + 1)),
+ ss.rate,
+ ss.percentage,
+ pi->fb_div_scale);
+
+ clk_s = rv6xx_calculate_spread_spectrum_clk_s(ss.rate,
+ (ref_clk / (dividers.ref_div + 1)));
+
+ rv6xx_set_engine_spread_spectrum_clk_v(rdev, level, clk_v);
+ rv6xx_set_engine_spread_spectrum_clk_s(rdev, level, clk_s);
+ rv6xx_enable_engine_spread_spectrum(rdev, level, true);
+ }
+ }
+ }
+}
+
+static void rv6xx_program_sclk_spread_spectrum_parameters_except_lowest_entry(struct radeon_device *rdev)
+{
+ struct rv6xx_power_info *pi = rv6xx_get_pi(rdev);
+
+ rv6xx_program_engine_spread_spectrum(rdev,
+ pi->hw.sclks[R600_POWER_LEVEL_HIGH],
+ R600_POWER_LEVEL_HIGH);
+
+ rv6xx_program_engine_spread_spectrum(rdev,
+ pi->hw.sclks[R600_POWER_LEVEL_MEDIUM],
+ R600_POWER_LEVEL_MEDIUM);
+
+}
+
+static int rv6xx_program_mclk_stepping_entry(struct radeon_device *rdev,
+ u32 entry, u32 clock)
+{
+ struct atom_clock_dividers dividers;
+
+ if (radeon_atom_get_clock_dividers(rdev, COMPUTE_MEMORY_PLL_PARAM, clock, false, ÷rs))
+ return -EINVAL;
+
+
+ rv6xx_memory_clock_entry_set_reference_divider(rdev, entry, dividers.ref_div);
+ rv6xx_memory_clock_entry_set_feedback_divider(rdev, entry, dividers.fb_div);
+ rv6xx_memory_clock_entry_set_post_divider(rdev, entry, dividers.post_div);
+
+ if (dividers.enable_post_div)
+ rv6xx_memory_clock_entry_enable_post_divider(rdev, entry, true);
+ else
+ rv6xx_memory_clock_entry_enable_post_divider(rdev, entry, false);
+
+ return 0;
+}
+
+static void rv6xx_program_mclk_stepping_parameters_except_lowest_entry(struct radeon_device *rdev)
+{
+ struct rv6xx_power_info *pi = rv6xx_get_pi(rdev);
+ int i;
+
+ for (i = 1; i < R600_PM_NUMBER_OF_MCLKS; i++) {
+ if (pi->hw.mclks[i])
+ rv6xx_program_mclk_stepping_entry(rdev, i,
+ pi->hw.mclks[i]);
+ }
+}
+
+static void rv6xx_find_memory_clock_with_highest_vco(struct radeon_device *rdev,
+ u32 requested_memory_clock,
+ u32 ref_clk,
+ struct atom_clock_dividers *dividers,
+ u32 *vco_freq)
+{
+ struct rv6xx_power_info *pi = rv6xx_get_pi(rdev);
+ struct atom_clock_dividers req_dividers;
+ u32 vco_freq_temp;
+
+ if (radeon_atom_get_clock_dividers(rdev, COMPUTE_MEMORY_PLL_PARAM,
+ requested_memory_clock, false, &req_dividers) == 0) {
+ vco_freq_temp = rv6xx_calculate_vco_frequency(ref_clk, &req_dividers,
+ pi->fb_div_scale);
+
+ if (vco_freq_temp > *vco_freq) {
+ *dividers = req_dividers;
+ *vco_freq = vco_freq_temp;
+ }
+ }
+}
+
+static void rv6xx_program_mclk_spread_spectrum_parameters(struct radeon_device *rdev)
+{
+ struct rv6xx_power_info *pi = rv6xx_get_pi(rdev);
+ u32 ref_clk = rdev->clock.mpll.reference_freq;
+ struct atom_clock_dividers dividers;
+ struct radeon_atom_ss ss;
+ u32 vco_freq = 0, clk_v, clk_s;
+
+ rv6xx_enable_memory_spread_spectrum(rdev, false);
+
+ if (pi->mclk_ss) {
+ rv6xx_find_memory_clock_with_highest_vco(rdev,
+ pi->hw.mclks[pi->hw.high_mclk_index],
+ ref_clk,
+ ÷rs,
+ &vco_freq);
+
+ rv6xx_find_memory_clock_with_highest_vco(rdev,
+ pi->hw.mclks[pi->hw.medium_mclk_index],
+ ref_clk,
+ ÷rs,
+ &vco_freq);
+
+ rv6xx_find_memory_clock_with_highest_vco(rdev,
+ pi->hw.mclks[pi->hw.low_mclk_index],
+ ref_clk,
+ ÷rs,
+ &vco_freq);
+
+ if (vco_freq) {
+ if (radeon_atombios_get_asic_ss_info(rdev, &ss,
+ ASIC_INTERNAL_MEMORY_SS, vco_freq)) {
+ clk_v = rv6xx_calculate_spread_spectrum_clk_v(vco_freq,
+ (ref_clk / (dividers.ref_div + 1)),
+ ss.rate,
+ ss.percentage,
+ pi->fb_div_scale);
+
+ clk_s = rv6xx_calculate_spread_spectrum_clk_s(ss.rate,
+ (ref_clk / (dividers.ref_div + 1)));
+
+ rv6xx_set_memory_spread_spectrum_clk_v(rdev, clk_v);
+ rv6xx_set_memory_spread_spectrum_clk_s(rdev, clk_s);
+ rv6xx_enable_memory_spread_spectrum(rdev, true);
+ }
+ }
+ }
+}
+
+static int rv6xx_program_voltage_stepping_entry(struct radeon_device *rdev,
+ u32 entry, u16 voltage)
+{
+ u32 mask, set_pins;
+ int ret;
+
+ ret = radeon_atom_get_voltage_gpio_settings(rdev, voltage,
+ SET_VOLTAGE_TYPE_ASIC_VDDC,
+ &set_pins, &mask);
+ if (ret)
+ return ret;
+
+ r600_voltage_control_program_voltages(rdev, entry, set_pins);
+
+ return 0;
+}
+
+static void rv6xx_program_voltage_stepping_parameters_except_lowest_entry(struct radeon_device *rdev)
+{
+ struct rv6xx_power_info *pi = rv6xx_get_pi(rdev);
+ int i;
+
+ for (i = 1; i < R600_PM_NUMBER_OF_VOLTAGE_LEVELS; i++)
+ rv6xx_program_voltage_stepping_entry(rdev, i,
+ pi->hw.vddc[i]);
+
+}
+
+static void rv6xx_program_backbias_stepping_parameters_except_lowest_entry(struct radeon_device *rdev)
+{
+ struct rv6xx_power_info *pi = rv6xx_get_pi(rdev);
+
+ if (pi->hw.backbias[1])
+ WREG32_P(VID_UPPER_GPIO_CNTL, MEDIUM_BACKBIAS_VALUE, ~MEDIUM_BACKBIAS_VALUE);
+ else
+ WREG32_P(VID_UPPER_GPIO_CNTL, 0, ~MEDIUM_BACKBIAS_VALUE);
+
+ if (pi->hw.backbias[2])
+ WREG32_P(VID_UPPER_GPIO_CNTL, HIGH_BACKBIAS_VALUE, ~HIGH_BACKBIAS_VALUE);
+ else
+ WREG32_P(VID_UPPER_GPIO_CNTL, 0, ~HIGH_BACKBIAS_VALUE);
+}
+
+static void rv6xx_program_sclk_spread_spectrum_parameters_lowest_entry(struct radeon_device *rdev)
+{
+ struct rv6xx_power_info *pi = rv6xx_get_pi(rdev);
+
+ rv6xx_program_engine_spread_spectrum(rdev,
+ pi->hw.sclks[R600_POWER_LEVEL_LOW],
+ R600_POWER_LEVEL_LOW);
+}
+
+static void rv6xx_program_mclk_stepping_parameters_lowest_entry(struct radeon_device *rdev)
+{
+ struct rv6xx_power_info *pi = rv6xx_get_pi(rdev);
+
+ if (pi->hw.mclks[0])
+ rv6xx_program_mclk_stepping_entry(rdev, 0,
+ pi->hw.mclks[0]);
+}
+
+static void rv6xx_program_voltage_stepping_parameters_lowest_entry(struct radeon_device *rdev)
+{
+ struct rv6xx_power_info *pi = rv6xx_get_pi(rdev);
+
+ rv6xx_program_voltage_stepping_entry(rdev, 0,
+ pi->hw.vddc[0]);
+
+}
+
+static void rv6xx_program_backbias_stepping_parameters_lowest_entry(struct radeon_device *rdev)
+{
+ struct rv6xx_power_info *pi = rv6xx_get_pi(rdev);
+
+ if (pi->hw.backbias[0])
+ WREG32_P(VID_UPPER_GPIO_CNTL, LOW_BACKBIAS_VALUE, ~LOW_BACKBIAS_VALUE);
+ else
+ WREG32_P(VID_UPPER_GPIO_CNTL, 0, ~LOW_BACKBIAS_VALUE);
+}
+
+static u32 calculate_memory_refresh_rate(struct radeon_device *rdev,
+ u32 engine_clock)
+{
+ u32 dram_rows, dram_refresh_rate;
+ u32 tmp;
+
+ tmp = (RREG32(RAMCFG) & NOOFROWS_MASK) >> NOOFROWS_SHIFT;
+ dram_rows = 1 << (tmp + 10);
+ dram_refresh_rate = 1 << ((RREG32(MC_SEQ_RESERVE_M) & 0x3) + 3);
+
+ return ((engine_clock * 10) * dram_refresh_rate / dram_rows - 32) / 64;
+}
+
+static void rv6xx_program_memory_timing_parameters(struct radeon_device *rdev)
+{
+ struct rv6xx_power_info *pi = rv6xx_get_pi(rdev);
+ u32 sqm_ratio;
+ u32 arb_refresh_rate;
+ u32 high_clock;
+
+ if (pi->hw.sclks[R600_POWER_LEVEL_HIGH] <
+ (pi->hw.sclks[R600_POWER_LEVEL_LOW] * 0xFF / 0x40))
+ high_clock = pi->hw.sclks[R600_POWER_LEVEL_HIGH];
+ else
+ high_clock =
+ pi->hw.sclks[R600_POWER_LEVEL_LOW] * 0xFF / 0x40;
+
+ radeon_atom_set_engine_dram_timings(rdev, high_clock, 0);
+
+ sqm_ratio = (STATE0(64 * high_clock / pi->hw.sclks[R600_POWER_LEVEL_LOW]) |
+ STATE1(64 * high_clock / pi->hw.sclks[R600_POWER_LEVEL_MEDIUM]) |
+ STATE2(64 * high_clock / pi->hw.sclks[R600_POWER_LEVEL_HIGH]) |
+ STATE3(64 * high_clock / pi->hw.sclks[R600_POWER_LEVEL_HIGH]));
+ WREG32(SQM_RATIO, sqm_ratio);
+
+ arb_refresh_rate =
+ (POWERMODE0(calculate_memory_refresh_rate(rdev,
+ pi->hw.sclks[R600_POWER_LEVEL_LOW])) |
+ POWERMODE1(calculate_memory_refresh_rate(rdev,
+ pi->hw.sclks[R600_POWER_LEVEL_MEDIUM])) |
+ POWERMODE2(calculate_memory_refresh_rate(rdev,
+ pi->hw.sclks[R600_POWER_LEVEL_MEDIUM])) |
+ POWERMODE3(calculate_memory_refresh_rate(rdev,
+ pi->hw.sclks[R600_POWER_LEVEL_HIGH])));
+ WREG32(ARB_RFSH_RATE, arb_refresh_rate);
+}
+
+static void rv6xx_program_mpll_timing_parameters(struct radeon_device *rdev)
+{
+ struct rv6xx_power_info *pi = rv6xx_get_pi(rdev);
+
+ r600_set_mpll_lock_time(rdev, R600_MPLLLOCKTIME_DFLT *
+ pi->mpll_ref_div);
+ r600_set_mpll_reset_time(rdev, R600_MPLLRESETTIME_DFLT);
+}
+
+static void rv6xx_program_bsp(struct radeon_device *rdev)
+{
+ struct rv6xx_power_info *pi = rv6xx_get_pi(rdev);
+ u32 ref_clk = rdev->clock.spll.reference_freq;
+
+ r600_calculate_u_and_p(R600_ASI_DFLT,
+ ref_clk, 16,
+ &pi->bsp,
+ &pi->bsu);
+
+ r600_set_bsp(rdev, pi->bsu, pi->bsp);
+}
+
+static void rv6xx_program_at(struct radeon_device *rdev)
+{
+ struct rv6xx_power_info *pi = rv6xx_get_pi(rdev);
+
+ r600_set_at(rdev,
+ (pi->hw.rp[0] * pi->bsp) / 200,
+ (pi->hw.rp[1] * pi->bsp) / 200,
+ (pi->hw.lp[2] * pi->bsp) / 200,
+ (pi->hw.lp[1] * pi->bsp) / 200);
+}
+
+static void rv6xx_program_git(struct radeon_device *rdev)
+{
+ r600_set_git(rdev, R600_GICST_DFLT);
+}
+
+static void rv6xx_program_tp(struct radeon_device *rdev)
+{
+ int i;
+
+ for (i = 0; i < R600_PM_NUMBER_OF_TC; i++)
+ r600_set_tc(rdev, i, r600_utc[i], r600_dtc[i]);
+
+ r600_select_td(rdev, R600_TD_DFLT);
+}
+
+static void rv6xx_program_vc(struct radeon_device *rdev)
+{
+ r600_set_vrc(rdev, R600_VRC_DFLT);
+}
+
+static void rv6xx_clear_vc(struct radeon_device *rdev)
+{
+ r600_set_vrc(rdev, 0);
+}
+
+static void rv6xx_program_tpp(struct radeon_device *rdev)
+{
+ r600_set_tpu(rdev, R600_TPU_DFLT);
+ r600_set_tpc(rdev, R600_TPC_DFLT);
+}
+
+static void rv6xx_program_sstp(struct radeon_device *rdev)
+{
+ r600_set_sstu(rdev, R600_SSTU_DFLT);
+ r600_set_sst(rdev, R600_SST_DFLT);
+}
+
+static void rv6xx_program_fcp(struct radeon_device *rdev)
+{
+ r600_set_fctu(rdev, R600_FCTU_DFLT);
+ r600_set_fct(rdev, R600_FCT_DFLT);
+}
+
+static void rv6xx_program_vddc3d_parameters(struct radeon_device *rdev)
+{
+ 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);
+}
+
+static void rv6xx_program_voltage_timing_parameters(struct radeon_device *rdev)
+{
+ u32 rt;
+
+ r600_vid_rt_set_vru(rdev, R600_VRU_DFLT);
+
+ r600_vid_rt_set_vrt(rdev,
+ rv6xx_compute_count_for_delay(rdev,
+ rdev->pm.dpm.voltage_response_time,
+ R600_VRU_DFLT));
+
+ rt = rv6xx_compute_count_for_delay(rdev,
+ rdev->pm.dpm.backbias_response_time,
+ R600_VRU_DFLT);
+
+ rv6xx_vid_response_set_brt(rdev, (rt + 0x1F) >> 5);
+}
+
+static void rv6xx_program_engine_speed_parameters(struct radeon_device *rdev)
+{
+ r600_vid_rt_set_ssu(rdev, R600_SPLLSTEPUNIT_DFLT);
+ rv6xx_enable_engine_feedback_and_reference_sync(rdev);
+}
+
+static u64 rv6xx_get_master_voltage_mask(struct radeon_device *rdev)
+{
+ struct rv6xx_power_info *pi = rv6xx_get_pi(rdev);
+ u64 master_mask = 0;
+ int i;
+
+ for (i = 0; i < R600_PM_NUMBER_OF_VOLTAGE_LEVELS; i++) {
+ u32 tmp_mask, tmp_set_pins;
+ int ret;
+
+ ret = radeon_atom_get_voltage_gpio_settings(rdev,
+ pi->hw.vddc[i],
+ SET_VOLTAGE_TYPE_ASIC_VDDC,
+ &tmp_set_pins, &tmp_mask);
+
+ if (ret == 0)
+ master_mask |= tmp_mask;
+ }
+
+ return master_mask;
+}
+
+static void rv6xx_program_voltage_gpio_pins(struct radeon_device *rdev)
+{
+ r600_voltage_control_enable_pins(rdev,
+ rv6xx_get_master_voltage_mask(rdev));
+}
+
+static void rv6xx_enable_static_voltage_control(struct radeon_device *rdev, bool enable)
+{
+ struct rv6xx_ps *new_state = rv6xx_get_ps(rdev->pm.dpm.requested_ps);
+
+ if (enable)
+ radeon_atom_set_voltage(rdev,
+ new_state->low.vddc,
+ SET_VOLTAGE_TYPE_ASIC_VDDC);
+ else
+ r600_voltage_control_deactivate_static_control(rdev,
+ rv6xx_get_master_voltage_mask(rdev));
+}
+
+static void rv6xx_enable_display_gap(struct radeon_device *rdev, bool enable)
+{
+ if (enable) {
+ u32 tmp = (DISP1_GAP(R600_PM_DISPLAY_GAP_VBLANK_OR_WM) |
+ DISP2_GAP(R600_PM_DISPLAY_GAP_VBLANK_OR_WM) |
+ DISP1_GAP_MCHG(R600_PM_DISPLAY_GAP_IGNORE) |
+ DISP2_GAP_MCHG(R600_PM_DISPLAY_GAP_IGNORE) |
+ VBI_TIMER_COUNT(0x3FFF) |
+ VBI_TIMER_UNIT(7));
+ WREG32(CG_DISPLAY_GAP_CNTL, tmp);
+
+ WREG32_P(MCLK_PWRMGT_CNTL, USE_DISPLAY_GAP, ~USE_DISPLAY_GAP);
+ } else
+ WREG32_P(MCLK_PWRMGT_CNTL, 0, ~USE_DISPLAY_GAP);
+}
+
+static void rv6xx_program_power_level_enter_state(struct radeon_device *rdev)
+{
+ r600_power_level_set_enter_index(rdev, R600_POWER_LEVEL_MEDIUM);
+}
+
+static void rv6xx_calculate_t(u32 l_f, u32 h_f, int h,
+ int d_l, int d_r, u8 *l, u8 *r)
+{
+ int a_n, a_d, h_r, l_r;
+
+ h_r = d_l;
+ l_r = 100 - d_r;
+
+ a_n = (int)h_f * d_l + (int)l_f * (h - d_r);
+ a_d = (int)l_f * l_r + (int)h_f * h_r;
+
+ if (a_d != 0) {
+ *l = d_l - h_r * a_n / a_d;
+ *r = d_r + l_r * a_n / a_d;
+ }
+}
+
+static void rv6xx_calculate_ap(struct radeon_device *rdev,
+ struct rv6xx_ps *state)
+{
+ struct rv6xx_power_info *pi = rv6xx_get_pi(rdev);
+
+ pi->hw.lp[0] = 0;
+ pi->hw.rp[R600_PM_NUMBER_OF_ACTIVITY_LEVELS - 1]
+ = 100;
+
+ rv6xx_calculate_t(state->low.sclk,
+ state->medium.sclk,
+ R600_AH_DFLT,
+ R600_LMP_DFLT,
+ R600_RLP_DFLT,
+ &pi->hw.lp[1],
+ &pi->hw.rp[0]);
+
+ rv6xx_calculate_t(state->medium.sclk,
+ state->high.sclk,
+ R600_AH_DFLT,
+ R600_LHP_DFLT,
+ R600_RMP_DFLT,
+ &pi->hw.lp[2],
+ &pi->hw.rp[1]);
+
+}
+
+static void rv6xx_calculate_stepping_parameters(struct radeon_device *rdev)
+{
+ struct rv6xx_ps *new_state = rv6xx_get_ps(rdev->pm.dpm.requested_ps);
+
+ rv6xx_calculate_engine_speed_stepping_parameters(rdev, new_state);
+ rv6xx_calculate_memory_clock_stepping_parameters(rdev, new_state);
+ rv6xx_calculate_voltage_stepping_parameters(rdev, new_state);
+ rv6xx_calculate_ap(rdev, new_state);
+}
+
+static void rv6xx_program_stepping_parameters_except_lowest_entry(struct radeon_device *rdev)
+{
+ struct rv6xx_power_info *pi = rv6xx_get_pi(rdev);
+
+ rv6xx_program_mclk_stepping_parameters_except_lowest_entry(rdev);
+ if (pi->voltage_control)
+ rv6xx_program_voltage_stepping_parameters_except_lowest_entry(rdev);
+ rv6xx_program_backbias_stepping_parameters_except_lowest_entry(rdev);
+ rv6xx_program_sclk_spread_spectrum_parameters_except_lowest_entry(rdev);
+ rv6xx_program_mclk_spread_spectrum_parameters(rdev);
+ rv6xx_program_memory_timing_parameters(rdev);
+}
+
+static void rv6xx_program_stepping_parameters_lowest_entry(struct radeon_device *rdev)
+{
+ struct rv6xx_power_info *pi = rv6xx_get_pi(rdev);
+
+ rv6xx_program_mclk_stepping_parameters_lowest_entry(rdev);
+ if (pi->voltage_control)
+ rv6xx_program_voltage_stepping_parameters_lowest_entry(rdev);
+ rv6xx_program_backbias_stepping_parameters_lowest_entry(rdev);
+ rv6xx_program_sclk_spread_spectrum_parameters_lowest_entry(rdev);
+}
+
+static void rv6xx_program_power_level_low(struct radeon_device *rdev)
+{
+ struct rv6xx_power_info *pi = rv6xx_get_pi(rdev);
+
+ r600_power_level_set_voltage_index(rdev, R600_POWER_LEVEL_LOW,
+ pi->hw.low_vddc_index);
+ r600_power_level_set_mem_clock_index(rdev, R600_POWER_LEVEL_LOW,
+ pi->hw.low_mclk_index);
+ r600_power_level_set_eng_clock_index(rdev, R600_POWER_LEVEL_LOW,
+ pi->hw.low_sclk_index);
+ r600_power_level_set_watermark_id(rdev, R600_POWER_LEVEL_LOW,
+ R600_DISPLAY_WATERMARK_LOW);
+ r600_power_level_set_pcie_gen2(rdev, R600_POWER_LEVEL_LOW,
+ pi->hw.pcie_gen2[R600_POWER_LEVEL_LOW]);
+}
+
+static void rv6xx_program_power_level_low_to_lowest_state(struct radeon_device *rdev)
+{
+ struct rv6xx_power_info *pi = rv6xx_get_pi(rdev);
+
+ r600_power_level_set_voltage_index(rdev, R600_POWER_LEVEL_LOW, 0);
+ r600_power_level_set_mem_clock_index(rdev, R600_POWER_LEVEL_LOW, 0);
+ r600_power_level_set_eng_clock_index(rdev, R600_POWER_LEVEL_LOW, 0);
+
+ r600_power_level_set_watermark_id(rdev, R600_POWER_LEVEL_LOW,
+ R600_DISPLAY_WATERMARK_LOW);
+
+ r600_power_level_set_pcie_gen2(rdev, R600_POWER_LEVEL_LOW,
+ pi->hw.pcie_gen2[R600_POWER_LEVEL_LOW]);
+
+}
+
+static void rv6xx_program_power_level_medium(struct radeon_device *rdev)
+{
+ struct rv6xx_power_info *pi = rv6xx_get_pi(rdev);
+
+ r600_power_level_set_voltage_index(rdev, R600_POWER_LEVEL_MEDIUM,
+ pi->hw.medium_vddc_index);
+ r600_power_level_set_mem_clock_index(rdev, R600_POWER_LEVEL_MEDIUM,
+ pi->hw.medium_mclk_index);
+ r600_power_level_set_eng_clock_index(rdev, R600_POWER_LEVEL_MEDIUM,
+ pi->hw.medium_sclk_index);
+ r600_power_level_set_watermark_id(rdev, R600_POWER_LEVEL_MEDIUM,
+ R600_DISPLAY_WATERMARK_LOW);
+ r600_power_level_set_pcie_gen2(rdev, R600_POWER_LEVEL_MEDIUM,
+ pi->hw.pcie_gen2[R600_POWER_LEVEL_MEDIUM]);
+}
+
+static void rv6xx_program_power_level_medium_for_transition(struct radeon_device *rdev)
+{
+ struct rv6xx_power_info *pi = rv6xx_get_pi(rdev);
+
+ rv6xx_program_mclk_stepping_entry(rdev,
+ R600_POWER_LEVEL_CTXSW,
+ pi->hw.mclks[pi->hw.low_mclk_index]);
+
+ r600_power_level_set_voltage_index(rdev, R600_POWER_LEVEL_MEDIUM, 1);
+
+ r600_power_level_set_mem_clock_index(rdev, R600_POWER_LEVEL_MEDIUM,
+ R600_POWER_LEVEL_CTXSW);
+ r600_power_level_set_eng_clock_index(rdev, R600_POWER_LEVEL_MEDIUM,
+ pi->hw.medium_sclk_index);
+
+ r600_power_level_set_watermark_id(rdev, R600_POWER_LEVEL_MEDIUM,
+ R600_DISPLAY_WATERMARK_LOW);
+
+ rv6xx_enable_engine_spread_spectrum(rdev, R600_POWER_LEVEL_MEDIUM, false);
+
+ r600_power_level_set_pcie_gen2(rdev, R600_POWER_LEVEL_MEDIUM,
+ pi->hw.pcie_gen2[R600_POWER_LEVEL_LOW]);
+}
+
+static void rv6xx_program_power_level_high(struct radeon_device *rdev)
+{
+ struct rv6xx_power_info *pi = rv6xx_get_pi(rdev);
+
+ r600_power_level_set_voltage_index(rdev, R600_POWER_LEVEL_HIGH,
+ pi->hw.high_vddc_index);
+ r600_power_level_set_mem_clock_index(rdev, R600_POWER_LEVEL_HIGH,
+ pi->hw.high_mclk_index);
+ r600_power_level_set_eng_clock_index(rdev, R600_POWER_LEVEL_HIGH,
+ pi->hw.high_sclk_index);
+
+ r600_power_level_set_watermark_id(rdev, R600_POWER_LEVEL_HIGH,
+ R600_DISPLAY_WATERMARK_HIGH);
+
+ r600_power_level_set_pcie_gen2(rdev, R600_POWER_LEVEL_HIGH,
+ pi->hw.pcie_gen2[R600_POWER_LEVEL_HIGH]);
+}
+
+static void rv6xx_enable_backbias(struct radeon_device *rdev, bool enable)
+{
+ if (enable)
+ WREG32_P(GENERAL_PWRMGT, BACKBIAS_PAD_EN | BACKBIAS_DPM_CNTL,
+ ~(BACKBIAS_PAD_EN | BACKBIAS_DPM_CNTL));
+ else
+ WREG32_P(GENERAL_PWRMGT, 0,
+ ~(BACKBIAS_VALUE | BACKBIAS_PAD_EN | BACKBIAS_DPM_CNTL));
+}
+
+static void rv6xx_program_display_gap(struct radeon_device *rdev)
+{
+ u32 tmp = RREG32(CG_DISPLAY_GAP_CNTL);
+
+ tmp &= ~(DISP1_GAP_MCHG_MASK | DISP2_GAP_MCHG_MASK);
+ if (RREG32(AVIVO_D1CRTC_CONTROL) & AVIVO_CRTC_EN) {
+ tmp |= DISP1_GAP_MCHG(R600_PM_DISPLAY_GAP_VBLANK);
+ tmp |= DISP2_GAP_MCHG(R600_PM_DISPLAY_GAP_IGNORE);
+ } else if (RREG32(AVIVO_D2CRTC_CONTROL) & AVIVO_CRTC_EN) {
+ tmp |= DISP1_GAP_MCHG(R600_PM_DISPLAY_GAP_IGNORE);
+ tmp |= DISP2_GAP_MCHG(R600_PM_DISPLAY_GAP_VBLANK);
+ } else {
+ tmp |= DISP1_GAP_MCHG(R600_PM_DISPLAY_GAP_IGNORE);
+ tmp |= DISP2_GAP_MCHG(R600_PM_DISPLAY_GAP_IGNORE);
+ }
+ WREG32(CG_DISPLAY_GAP_CNTL, tmp);
+}
+
+static void rv6xx_set_sw_voltage_to_safe(struct radeon_device *rdev)
+{
+ struct rv6xx_ps *new_state = rv6xx_get_ps(rdev->pm.dpm.requested_ps);
+ struct rv6xx_ps *old_state = rv6xx_get_ps(rdev->pm.dpm.current_ps);
+ u16 safe_voltage;
+
+ safe_voltage = (new_state->low.vddc >= old_state->low.vddc) ?
+ new_state->low.vddc : old_state->low.vddc;
+
+ rv6xx_program_voltage_stepping_entry(rdev, R600_POWER_LEVEL_CTXSW,
+ safe_voltage);
+
+ WREG32_P(GENERAL_PWRMGT, SW_GPIO_INDEX(R600_POWER_LEVEL_CTXSW),
+ ~SW_GPIO_INDEX_MASK);
+}
+
+static void rv6xx_set_sw_voltage_to_low(struct radeon_device *rdev)
+{
+ struct rv6xx_ps *old_state = rv6xx_get_ps(rdev->pm.dpm.current_ps);
+
+ rv6xx_program_voltage_stepping_entry(rdev, R600_POWER_LEVEL_CTXSW,
+ old_state->low.vddc);
+
+ WREG32_P(GENERAL_PWRMGT, SW_GPIO_INDEX(R600_POWER_LEVEL_CTXSW),
+ ~SW_GPIO_INDEX_MASK);
+}
+
+static void rv6xx_set_safe_backbias(struct radeon_device *rdev)
+{
+ struct rv6xx_ps *new_state = rv6xx_get_ps(rdev->pm.dpm.requested_ps);
+ struct rv6xx_ps *old_state = rv6xx_get_ps(rdev->pm.dpm.current_ps);
+
+ if ((new_state->low.flags & ATOM_PPLIB_R600_FLAGS_BACKBIASENABLE) &&
+ (old_state->low.flags & ATOM_PPLIB_R600_FLAGS_BACKBIASENABLE))
+ WREG32_P(GENERAL_PWRMGT, BACKBIAS_VALUE, ~BACKBIAS_VALUE);
+ else
+ WREG32_P(GENERAL_PWRMGT, 0, ~BACKBIAS_VALUE);
+}
+
+static void rv6xx_set_safe_pcie_gen2(struct radeon_device *rdev)
+{
+ struct rv6xx_ps *new_state = rv6xx_get_ps(rdev->pm.dpm.requested_ps);
+ struct rv6xx_ps *old_state = rv6xx_get_ps(rdev->pm.dpm.current_ps);
+
+ if ((new_state->low.flags & ATOM_PPLIB_R600_FLAGS_PCIEGEN2) !=
+ (old_state->low.flags & ATOM_PPLIB_R600_FLAGS_PCIEGEN2))
+ rv6xx_force_pcie_gen1(rdev);
+}
+
+static void rv6xx_enable_dynamic_voltage_control(struct radeon_device *rdev,
+ bool enable)
+{
+ if (enable)
+ WREG32_P(GENERAL_PWRMGT, VOLT_PWRMGT_EN, ~VOLT_PWRMGT_EN);
+ else
+ WREG32_P(GENERAL_PWRMGT, 0, ~VOLT_PWRMGT_EN);
+}
+
+static void rv6xx_enable_dynamic_backbias_control(struct radeon_device *rdev,
+ bool enable)
+{
+ if (enable)
+ WREG32_P(GENERAL_PWRMGT, BACKBIAS_DPM_CNTL, ~BACKBIAS_DPM_CNTL);
+ else
+ WREG32_P(GENERAL_PWRMGT, 0, ~BACKBIAS_DPM_CNTL);
+}
+
+static int rv6xx_step_sw_voltage(struct radeon_device *rdev,
+ u16 initial_voltage,
+ u16 target_voltage)
+{
+ u16 current_voltage;
+ u16 true_target_voltage;
+ u16 voltage_step;
+ int signed_voltage_step;
+
+ if ((radeon_atom_get_voltage_step(rdev, SET_VOLTAGE_TYPE_ASIC_VDDC,
+ &voltage_step)) ||
+ (radeon_atom_round_to_true_voltage(rdev, SET_VOLTAGE_TYPE_ASIC_VDDC,
+ initial_voltage, ¤t_voltage)) ||
+ (radeon_atom_round_to_true_voltage(rdev, SET_VOLTAGE_TYPE_ASIC_VDDC,
+ target_voltage, &true_target_voltage)))
+ return -EINVAL;
+
+ if (true_target_voltage < current_voltage)
+ signed_voltage_step = -(int)voltage_step;
+ else
+ signed_voltage_step = voltage_step;
+
+ while (current_voltage != true_target_voltage) {
+ current_voltage += signed_voltage_step;
+ rv6xx_program_voltage_stepping_entry(rdev, R600_POWER_LEVEL_CTXSW,
+ current_voltage);
+ msleep((rdev->pm.dpm.voltage_response_time + 999) / 1000);
+ }
+
+ return 0;
+}
+
+static int rv6xx_step_voltage_if_increasing(struct radeon_device *rdev)
+{
+ struct rv6xx_ps *new_state = rv6xx_get_ps(rdev->pm.dpm.requested_ps);
+ struct rv6xx_ps *old_state = rv6xx_get_ps(rdev->pm.dpm.current_ps);
+
+ if (new_state->low.vddc > old_state->low.vddc)
+ return rv6xx_step_sw_voltage(rdev,
+ old_state->low.vddc,
+ new_state->low.vddc);
+
+ return 0;
+}
+
+static int rv6xx_step_voltage_if_decreasing(struct radeon_device *rdev)
+{
+ struct rv6xx_ps *new_state = rv6xx_get_ps(rdev->pm.dpm.requested_ps);
+ struct rv6xx_ps *old_state = rv6xx_get_ps(rdev->pm.dpm.current_ps);
+
+ if (new_state->low.vddc < old_state->low.vddc)
+ return rv6xx_step_sw_voltage(rdev,
+ old_state->low.vddc,
+ new_state->low.vddc);
+ else
+ return 0;
+}
+
+static void rv6xx_enable_high(struct radeon_device *rdev)
+{
+ struct rv6xx_power_info *pi = rv6xx_get_pi(rdev);
+
+ if ((pi->restricted_levels < 1) ||
+ (pi->restricted_levels == 3))
+ r600_power_level_enable(rdev, R600_POWER_LEVEL_HIGH, true);
+}
+
+static void rv6xx_enable_medium(struct radeon_device *rdev)
+{
+ struct rv6xx_power_info *pi = rv6xx_get_pi(rdev);
+
+ if (pi->restricted_levels < 2)
+ r600_power_level_enable(rdev, R600_POWER_LEVEL_MEDIUM, true);
+}
+
+static void rv6xx_set_dpm_event_sources(struct radeon_device *rdev, u32 sources)
+{
+ struct rv6xx_power_info *pi = rv6xx_get_pi(rdev);
+ bool want_thermal_protection;
+ enum radeon_dpm_event_src dpm_event_src;
+
+ switch (sources) {
+ case 0:
+ default:
+ want_thermal_protection = false;
+ break;
+ case (1 << RADEON_DPM_AUTO_THROTTLE_SRC_THERMAL):
+ want_thermal_protection = true;
+ dpm_event_src = RADEON_DPM_EVENT_SRC_DIGITAL;
+ break;
+
+ case (1 << RADEON_DPM_AUTO_THROTTLE_SRC_EXTERNAL):
+ want_thermal_protection = true;
+ dpm_event_src = RADEON_DPM_EVENT_SRC_EXTERNAL;
+ break;
+
+ case ((1 << RADEON_DPM_AUTO_THROTTLE_SRC_EXTERNAL) |
+ (1 << RADEON_DPM_AUTO_THROTTLE_SRC_THERMAL)):
+ want_thermal_protection = true;
+ dpm_event_src = RADEON_DPM_EVENT_SRC_DIGIAL_OR_EXTERNAL;
+ break;
+ }
+
+ if (want_thermal_protection) {
+ WREG32_P(CG_THERMAL_CTRL, DPM_EVENT_SRC(dpm_event_src), ~DPM_EVENT_SRC_MASK);
+ if (pi->thermal_protection)
+ WREG32_P(GENERAL_PWRMGT, 0, ~THERMAL_PROTECTION_DIS);
+ } else {
+ WREG32_P(GENERAL_PWRMGT, THERMAL_PROTECTION_DIS, ~THERMAL_PROTECTION_DIS);
+ }
+}
+
+static void rv6xx_enable_auto_throttle_source(struct radeon_device *rdev,
+ enum radeon_dpm_auto_throttle_src source,
+ bool enable)
+{
+ struct rv6xx_power_info *pi = rv6xx_get_pi(rdev);
+
+ if (enable) {
+ if (!(pi->active_auto_throttle_sources & (1 << source))) {
+ pi->active_auto_throttle_sources |= 1 << source;
+ rv6xx_set_dpm_event_sources(rdev, pi->active_auto_throttle_sources);
+ }
+ } else {
+ if (pi->active_auto_throttle_sources & (1 << source)) {
+ pi->active_auto_throttle_sources &= ~(1 << source);
+ rv6xx_set_dpm_event_sources(rdev, pi->active_auto_throttle_sources);
+ }
+ }
+}
+
+
+static void rv6xx_enable_thermal_protection(struct radeon_device *rdev,
+ bool enable)
+{
+ struct rv6xx_power_info *pi = rv6xx_get_pi(rdev);
+
+ if (pi->active_auto_throttle_sources)
+ r600_enable_thermal_protection(rdev, enable);
+}
+
+static void rv6xx_generate_transition_stepping(struct radeon_device *rdev)
+{
+ struct rv6xx_ps *new_state = rv6xx_get_ps(rdev->pm.dpm.requested_ps);
+ struct rv6xx_ps *old_state = rv6xx_get_ps(rdev->pm.dpm.current_ps);
+ struct rv6xx_power_info *pi = rv6xx_get_pi(rdev);
+
+ rv6xx_generate_steps(rdev,
+ old_state->low.sclk,
+ new_state->low.sclk,
+ 0, &pi->hw.medium_sclk_index);
+}
+
+static void rv6xx_generate_low_step(struct radeon_device *rdev)
+{
+ struct rv6xx_ps *new_state = rv6xx_get_ps(rdev->pm.dpm.requested_ps);
+ struct rv6xx_power_info *pi = rv6xx_get_pi(rdev);
+
+ pi->hw.low_sclk_index = 0;
+ rv6xx_generate_single_step(rdev,
+ new_state->low.sclk,
+ 0);
+}
+
+static void rv6xx_invalidate_intermediate_steps(struct radeon_device *rdev)
+{
+ struct rv6xx_power_info *pi = rv6xx_get_pi(rdev);
+
+ rv6xx_invalidate_intermediate_steps_range(rdev, 0,
+ pi->hw.medium_sclk_index);
+}
+
+static void rv6xx_generate_stepping_table(struct radeon_device *rdev)
+{
+ struct rv6xx_ps *new_state = rv6xx_get_ps(rdev->pm.dpm.requested_ps);
+ struct rv6xx_power_info *pi = rv6xx_get_pi(rdev);
+
+ pi->hw.low_sclk_index = 0;
+
+ rv6xx_generate_steps(rdev,
+ new_state->low.sclk,
+ new_state->medium.sclk,
+ 0,
+ &pi->hw.medium_sclk_index);
+ rv6xx_generate_steps(rdev,
+ new_state->medium.sclk,
+ new_state->high.sclk,
+ pi->hw.medium_sclk_index,
+ &pi->hw.high_sclk_index);
+}
+
+static void rv6xx_enable_spread_spectrum(struct radeon_device *rdev,
+ bool enable)
+{
+ if (enable)
+ rv6xx_enable_dynamic_spread_spectrum(rdev, true);
+ else {
+ rv6xx_enable_engine_spread_spectrum(rdev, R600_POWER_LEVEL_LOW, false);
+ rv6xx_enable_engine_spread_spectrum(rdev, R600_POWER_LEVEL_MEDIUM, false);
+ rv6xx_enable_engine_spread_spectrum(rdev, R600_POWER_LEVEL_HIGH, false);
+ rv6xx_enable_dynamic_spread_spectrum(rdev, false);
+ rv6xx_enable_memory_spread_spectrum(rdev, false);
+ }
+}
+
+static void rv6xx_reset_lvtm_data_sync(struct radeon_device *rdev)
+{
+ if (ASIC_IS_DCE3(rdev))
+ WREG32_P(DCE3_LVTMA_DATA_SYNCHRONIZATION, LVTMA_PFREQCHG, ~LVTMA_PFREQCHG);
+ else
+ WREG32_P(LVTMA_DATA_SYNCHRONIZATION, LVTMA_PFREQCHG, ~LVTMA_PFREQCHG);
+}
+
+static void rv6xx_enable_dynamic_pcie_gen2(struct radeon_device *rdev,
+ bool enable)
+{
+ struct rv6xx_ps *new_state = rv6xx_get_ps(rdev->pm.dpm.requested_ps);
+
+ if (enable) {
+ rv6xx_enable_bif_dynamic_pcie_gen2(rdev, true);
+ rv6xx_enable_pcie_gen2_support(rdev);
+ r600_enable_dynamic_pcie_gen2(rdev, true);
+ } else {
+ if (!(new_state->low.flags & ATOM_PPLIB_R600_FLAGS_PCIEGEN2))
+ rv6xx_force_pcie_gen1(rdev);
+ rv6xx_enable_bif_dynamic_pcie_gen2(rdev, false);
+ r600_enable_dynamic_pcie_gen2(rdev, false);
+ }
+}
+
+int rv6xx_dpm_enable(struct radeon_device *rdev)
+{
+ struct rv6xx_power_info *pi = rv6xx_get_pi(rdev);
+
+ if (r600_dynamicpm_enabled(rdev))
+ return -EINVAL;
+
+ if (rdev->pm.dpm.platform_caps & ATOM_PP_PLATFORM_CAP_BACKBIAS)
+ rv6xx_enable_backbias(rdev, true);
+
+ if (pi->dynamic_ss)
+ rv6xx_enable_spread_spectrum(rdev, true);
+
+ rv6xx_program_mpll_timing_parameters(rdev);
+ rv6xx_program_bsp(rdev);
+ rv6xx_program_git(rdev);
+ rv6xx_program_tp(rdev);
+ rv6xx_program_tpp(rdev);
+ rv6xx_program_sstp(rdev);
+ rv6xx_program_fcp(rdev);
+ rv6xx_program_vddc3d_parameters(rdev);
+ rv6xx_program_voltage_timing_parameters(rdev);
+ rv6xx_program_engine_speed_parameters(rdev);
+
+ rv6xx_enable_display_gap(rdev, true);
+ if (pi->display_gap == false)
+ rv6xx_enable_display_gap(rdev, false);
+
+ rv6xx_program_power_level_enter_state(rdev);
+
+ rv6xx_calculate_stepping_parameters(rdev);
+
+ if (pi->voltage_control)
+ rv6xx_program_voltage_gpio_pins(rdev);
+
+ rv6xx_generate_stepping_table(rdev);
+
+ rv6xx_program_stepping_parameters_except_lowest_entry(rdev);
+ rv6xx_program_stepping_parameters_lowest_entry(rdev);
+
+ rv6xx_program_power_level_low(rdev);
+ rv6xx_program_power_level_medium(rdev);
+ rv6xx_program_power_level_high(rdev);
+ rv6xx_program_vc(rdev);
+ rv6xx_program_at(rdev);
+
+ r600_power_level_enable(rdev, R600_POWER_LEVEL_LOW, true);
+ r600_power_level_enable(rdev, R600_POWER_LEVEL_MEDIUM, true);
+ r600_power_level_enable(rdev, R600_POWER_LEVEL_HIGH, true);
+
+ if (rdev->irq.installed &&
+ r600_is_internal_thermal_sensor(rdev->pm.int_thermal_type)) {
+ r600_set_thermal_temperature_range(rdev, R600_TEMP_RANGE_MIN, R600_TEMP_RANGE_MAX);
+ rdev->irq.dpm_thermal = true;
+ radeon_irq_set(rdev);
+ }
+
+ rv6xx_enable_auto_throttle_source(rdev, RADEON_DPM_AUTO_THROTTLE_SRC_THERMAL, true);
+
+ r600_start_dpm(rdev);
+
+ if (pi->voltage_control)
+ rv6xx_enable_static_voltage_control(rdev, false);
+
+ if (pi->dynamic_pcie_gen2)
+ rv6xx_enable_dynamic_pcie_gen2(rdev, true);
+
+ if (pi->gfx_clock_gating)
+ r600_gfx_clockgating_enable(rdev, true);
+
+ return 0;
+}
+
+void rv6xx_dpm_disable(struct radeon_device *rdev)
+{
+ struct rv6xx_power_info *pi = rv6xx_get_pi(rdev);
+
+ if (!r600_dynamicpm_enabled(rdev))
+ return;
+
+ r600_power_level_enable(rdev, R600_POWER_LEVEL_LOW, true);
+ r600_power_level_enable(rdev, R600_POWER_LEVEL_MEDIUM, true);
+ rv6xx_enable_display_gap(rdev, false);
+ rv6xx_clear_vc(rdev);
+ r600_set_at(rdev, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF);
+
+ if (pi->thermal_protection)
+ r600_enable_thermal_protection(rdev, false);
+
+ r600_wait_for_power_level(rdev, R600_POWER_LEVEL_LOW);
+ r600_power_level_enable(rdev, R600_POWER_LEVEL_HIGH, false);
+ r600_power_level_enable(rdev, R600_POWER_LEVEL_MEDIUM, false);
+
+ if (rdev->pm.dpm.platform_caps & ATOM_PP_PLATFORM_CAP_BACKBIAS)
+ rv6xx_enable_backbias(rdev, false);
+
+ rv6xx_enable_spread_spectrum(rdev, false);
+
+ if (pi->voltage_control)
+ rv6xx_enable_static_voltage_control(rdev, true);
+
+ if (pi->dynamic_pcie_gen2)
+ rv6xx_enable_dynamic_pcie_gen2(rdev, false);
+
+ if (rdev->irq.installed &&
+ r600_is_internal_thermal_sensor(rdev->pm.int_thermal_type)) {
+ rdev->irq.dpm_thermal = false;
+ radeon_irq_set(rdev);
+ }
+
+ if (pi->gfx_clock_gating)
+ r600_gfx_clockgating_enable(rdev, false);
+
+ r600_stop_dpm(rdev);
+}
+
+int rv6xx_dpm_set_power_state(struct radeon_device *rdev)
+{
+ struct rv6xx_power_info *pi = rv6xx_get_pi(rdev);
+
+ rv6xx_clear_vc(rdev);
+ r600_power_level_enable(rdev, R600_POWER_LEVEL_LOW, true);
+ r600_set_at(rdev, 0xFFFF, 0xFFFF, 0xFFFF, 0xFFFF);
+
+ if (pi->thermal_protection)
+ r600_enable_thermal_protection(rdev, false);
+
+ r600_wait_for_power_level(rdev, R600_POWER_LEVEL_LOW);
+ r600_power_level_enable(rdev, R600_POWER_LEVEL_HIGH, false);
+ r600_power_level_enable(rdev, R600_POWER_LEVEL_MEDIUM, false);
+
+ rv6xx_generate_transition_stepping(rdev);
+ rv6xx_program_power_level_medium_for_transition(rdev);
+
+ if (pi->voltage_control) {
+ rv6xx_set_sw_voltage_to_safe(rdev);
+ if (rdev->pm.dpm.platform_caps & ATOM_PP_PLATFORM_CAP_STEPVDDC)
+ rv6xx_set_sw_voltage_to_low(rdev);
+ }
+
+ if (rdev->pm.dpm.platform_caps & ATOM_PP_PLATFORM_CAP_BACKBIAS)
+ rv6xx_set_safe_backbias(rdev);
+
+ if (pi->dynamic_pcie_gen2)
+ rv6xx_set_safe_pcie_gen2(rdev);
+
+ if (pi->voltage_control)
+ rv6xx_enable_dynamic_voltage_control(rdev, false);
+
+ if (rdev->pm.dpm.platform_caps & ATOM_PP_PLATFORM_CAP_BACKBIAS)
+ rv6xx_enable_dynamic_backbias_control(rdev, false);
+
+ if (pi->voltage_control) {
+ if (rdev->pm.dpm.platform_caps & ATOM_PP_PLATFORM_CAP_STEPVDDC)
+ rv6xx_step_voltage_if_increasing(rdev);
+ msleep((rdev->pm.dpm.voltage_response_time + 999) / 1000);
+ }
+
+ r600_power_level_enable(rdev, R600_POWER_LEVEL_MEDIUM, true);
+ r600_power_level_enable(rdev, R600_POWER_LEVEL_LOW, false);
+ r600_wait_for_power_level_unequal(rdev, R600_POWER_LEVEL_LOW);
+
+ rv6xx_generate_low_step(rdev);
+ rv6xx_invalidate_intermediate_steps(rdev);
+ rv6xx_calculate_stepping_parameters(rdev);
+ rv6xx_program_stepping_parameters_lowest_entry(rdev);
+ rv6xx_program_power_level_low_to_lowest_state(rdev);
+
+ r600_power_level_enable(rdev, R600_POWER_LEVEL_LOW, true);
+ r600_wait_for_power_level(rdev, R600_POWER_LEVEL_LOW);
+ r600_power_level_enable(rdev, R600_POWER_LEVEL_MEDIUM, false);
+
+ if (pi->voltage_control) {
+ if (rdev->pm.dpm.platform_caps & ATOM_PP_PLATFORM_CAP_STEPVDDC)
+ rv6xx_step_voltage_if_decreasing(rdev);
+ rv6xx_enable_dynamic_voltage_control(rdev, true);
+ }
+
+ if (rdev->pm.dpm.platform_caps & ATOM_PP_PLATFORM_CAP_BACKBIAS)
+ rv6xx_enable_dynamic_backbias_control(rdev, true);
+
+ if (pi->dynamic_pcie_gen2)
+ rv6xx_enable_dynamic_pcie_gen2(rdev, true);
+
+ rv6xx_reset_lvtm_data_sync(rdev);
+
+ rv6xx_generate_stepping_table(rdev);
+ rv6xx_program_stepping_parameters_except_lowest_entry(rdev);
+ rv6xx_program_power_level_low(rdev);
+ rv6xx_program_power_level_medium(rdev);
+ rv6xx_program_power_level_high(rdev);
+ rv6xx_enable_medium(rdev);
+ rv6xx_enable_high(rdev);
+
+ if (pi->thermal_protection)
+ rv6xx_enable_thermal_protection(rdev, true);
+ rv6xx_program_vc(rdev);
+ rv6xx_program_at(rdev);
+
+ return 0;
+}
+
+void rv6xx_setup_asic(struct radeon_device *rdev)
+{
+ r600_enable_acpi_pm(rdev);
+
+ if (rdev->pm.dpm.platform_caps & ATOM_PP_PLATFORM_CAP_ASPM_L0s)
+ rv6xx_enable_l0s(rdev);
+ if (rdev->pm.dpm.platform_caps & ATOM_PP_PLATFORM_CAP_ASPM_L1)
+ rv6xx_enable_l1(rdev);
+ if (rdev->pm.dpm.platform_caps & ATOM_PP_PLATFORM_CAP_TURNOFFPLL_ASPML1)
+ rv6xx_enable_pll_sleep_in_l1(rdev);
+}
+
+void rv6xx_dpm_display_configuration_changed(struct radeon_device *rdev)
+{
+ rv6xx_program_display_gap(rdev);
+}
+
+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 rv6xx_parse_pplib_non_clock_info(struct radeon_device *rdev,
+ struct radeon_ps *rps,
+ struct _ATOM_PPLIB_NONCLOCK_INFO *non_clock_info)
+{
+ 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 (r600_is_uvd_state(rps->class, rps->class2)) {
+ rps->vclk = RV6XX_DEFAULT_VCLK_FREQ;
+ rps->dclk = RV6XX_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 rv6xx_parse_pplib_clock_info(struct radeon_device *rdev,
+ struct radeon_ps *rps, int index,
+ union pplib_clock_info *clock_info)
+{
+ struct rv6xx_ps *ps = rv6xx_get_ps(rps);
+ u32 sclk, mclk;
+ u16 vddc;
+ struct rv6xx_pl *pl;
+
+ switch (index) {
+ case 0:
+ pl = &ps->low;
+ break;
+ case 1:
+ pl = &ps->medium;
+ break;
+ case 2:
+ default:
+ pl = &ps->high;
+ break;
+ }
+
+ sclk = le16_to_cpu(clock_info->r600.usEngineClockLow);
+ sclk |= clock_info->r600.ucEngineClockHigh << 16;
+ mclk = le16_to_cpu(clock_info->r600.usMemoryClockLow);
+ mclk |= clock_info->r600.ucMemoryClockHigh << 16;
+
+ pl->mclk = mclk;
+ pl->sclk = sclk;
+ pl->vddc = le16_to_cpu(clock_info->r600.usVDDC);
+ pl->flags = le32_to_cpu(clock_info->r600.ulFlags);
+
+ /* patch up vddc if necessary */
+ if (pl->vddc == 0xff01) {
+ if (radeon_atom_get_max_vddc(rdev, 0, 0, &vddc) == 0)
+ pl->vddc = vddc;
+ }
+
+ /* fix up pcie gen2 */
+ if (pl->flags & ATOM_PPLIB_R600_FLAGS_PCIEGEN2) {
+ if ((rdev->family == CHIP_RV610) || (rdev->family == CHIP_RV630)) {
+ if (pl->vddc < 1100)
+ pl->flags &= ~ATOM_PPLIB_R600_FLAGS_PCIEGEN2;
+ }
+ }
+
+ /* patch up boot state */
+ if (rps->class & ATOM_PPLIB_CLASSIFICATION_BOOT) {
+ u16 vddc, vddci;
+ radeon_atombios_get_default_voltages(rdev, &vddc, &vddci);
+ pl->mclk = rdev->clock.default_mclk;
+ pl->sclk = rdev->clock.default_sclk;
+ pl->vddc = vddc;
+ }
+}
+
+static int rv6xx_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, j;
+ union pplib_clock_info *clock_info;
+ union power_info *power_info;
+ int index = GetIndexIntoMasterTable(DATA, PowerPlayInfo);
+ u16 data_offset;
+ u8 frev, crev;
+ struct rv6xx_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) {
+ ps = kzalloc(sizeof(struct rv6xx_ps), GFP_KERNEL);
+ if (ps == NULL) {
+ kfree(rdev->pm.dpm.ps);
+ return -ENOMEM;
+ }
+ rdev->pm.dpm.ps[i].ps_priv = ps;
+ rv6xx_parse_pplib_non_clock_info(rdev, &rdev->pm.dpm.ps[i],
+ non_clock_info);
+ for (j = 0; j < (power_info->pplib.ucStateEntrySize - 1); j++) {
+ clock_info = (union pplib_clock_info *)
+ (mode_info->atom_context->bios + data_offset +
+ le16_to_cpu(power_info->pplib.usClockInfoArrayOffset) +
+ (power_state->v1.ucClockStateIndices[j] *
+ power_info->pplib.ucClockInfoSize));
+ rv6xx_parse_pplib_clock_info(rdev,
+ &rdev->pm.dpm.ps[i], j,
+ clock_info);
+ }
+ }
+ }
+ rdev->pm.dpm.num_ps = power_info->pplib.ucNumStates;
+ return 0;
+}
+
+int rv6xx_dpm_init(struct radeon_device *rdev)
+{
+ int index = GetIndexIntoMasterTable(DATA, ASIC_InternalSS_Info);
+ uint16_t data_offset, size;
+ uint8_t frev, crev;
+ struct atom_clock_dividers dividers;
+ struct rv6xx_power_info *pi;
+ int ret;
+
+ pi = kzalloc(sizeof(struct rv6xx_power_info), GFP_KERNEL);
+ if (pi == NULL)
+ return -ENOMEM;
+ rdev->pm.dpm.priv = pi;
+
+ ret = rv6xx_parse_power_table(rdev);
+ if (ret)
+ return ret;
+
+ if (rdev->pm.dpm.voltage_response_time == 0)
+ rdev->pm.dpm.voltage_response_time = R600_VOLTAGERESPONSETIME_DFLT;
+ if (rdev->pm.dpm.backbias_response_time == 0)
+ rdev->pm.dpm.backbias_response_time = R600_BACKBIASRESPONSETIME_DFLT;
+
+ ret = radeon_atom_get_clock_dividers(rdev, COMPUTE_ENGINE_PLL_PARAM,
+ 0, false, ÷rs);
+ if (ret)
+ pi->spll_ref_div = dividers.ref_div + 1;
+ else
+ pi->spll_ref_div = R600_REFERENCEDIVIDER_DFLT;
+
+ ret = radeon_atom_get_clock_dividers(rdev, COMPUTE_MEMORY_PLL_PARAM,
+ 0, false, ÷rs);
+ if (ret)
+ pi->mpll_ref_div = dividers.ref_div + 1;
+ else
+ pi->mpll_ref_div = R600_REFERENCEDIVIDER_DFLT;
+
+ if (rdev->family >= CHIP_RV670)
+ pi->fb_div_scale = 1;
+ else
+ pi->fb_div_scale = 0;
+
+ pi->voltage_control =
+ radeon_atom_is_voltage_gpio(rdev, SET_VOLTAGE_TYPE_ASIC_VDDC);
+
+ pi->gfx_clock_gating = true;
+
+ if (atom_parse_data_header(rdev->mode_info.atom_context, index, &size,
+ &frev, &crev, &data_offset)) {
+ pi->sclk_ss = true;
+ pi->mclk_ss = true;
+ pi->dynamic_ss = true;
+ } else {
+ pi->sclk_ss = false;
+ pi->mclk_ss = false;
+ pi->dynamic_ss = false;
+ }
+
+ pi->dynamic_pcie_gen2 = true;
+
+ if (pi->gfx_clock_gating &&
+ (rdev->pm.int_thermal_type != THERMAL_TYPE_NONE))
+ pi->thermal_protection = true;
+ else
+ pi->thermal_protection = false;
+
+ pi->display_gap = true;
+
+ return 0;
+}
+
+void rv6xx_dpm_print_power_state(struct radeon_device *rdev,
+ struct radeon_ps *rps)
+{
+ struct rv6xx_ps *ps = rv6xx_get_ps(rps);
+ struct rv6xx_pl *pl;
+
+ 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);
+ pl = &ps->low;
+ printk("\t\tpower level 0 sclk: %u mclk: %u vddc: %u\n",
+ pl->sclk, pl->mclk, pl->vddc);
+ pl = &ps->medium;
+ printk("\t\tpower level 1 sclk: %u mclk: %u vddc: %u\n",
+ pl->sclk, pl->mclk, pl->vddc);
+ pl = &ps->high;
+ printk("\t\tpower level 2 sclk: %u mclk: %u vddc: %u\n",
+ pl->sclk, pl->mclk, pl->vddc);
+ r600_dpm_print_ps_status(rdev, rps);
+}
+
+void rv6xx_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 rv6xx_dpm_get_sclk(struct radeon_device *rdev, bool low)
+{
+ struct rv6xx_ps *requested_state = rv6xx_get_ps(rdev->pm.dpm.requested_ps);
+
+ if (low)
+ return requested_state->low.sclk;
+ else
+ return requested_state->high.sclk;
+}
+
+u32 rv6xx_dpm_get_mclk(struct radeon_device *rdev, bool low)
+{
+ struct rv6xx_ps *requested_state = rv6xx_get_ps(rdev->pm.dpm.requested_ps);
+
+ if (low)
+ return requested_state->low.mclk;
+ else
+ return requested_state->high.mclk;
+}
projects / linux-beck.git / commitdiff