drm/radeon/kms: add dpm support for sumo asics (v2)

This adds dpm support for sumo asics.  This includes:
- clockgating
- powergating
- dynamic engine clock scaling
- dynamic voltage scaling

set radeon.dpm=1 to enable it.

v2: fix indention

Signed-off-by: Alex Deucher <alexander.deucher@amd.com>
Reviewed-by: Jerome Glisse <jglisse@redhat.com>

1 files changed, 1677 insertions, 0 deletions

diff --git a/drivers/gpu/drm/radeon/sumo_dpm.c b/drivers/gpu/drm/radeon/sumo_dpm.c
new file mode 100644
index 00000000000..fa2a72e17d0
--- /dev/null
+++ b/drivers/gpu/drm/radeon/sumo_dpm.c
@@ -0,0 +1,1677 @@
+/*
+ * Copyright 2012 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.
+ *
+ */
+
+#include "drmP.h"
+#include "radeon.h"
+#include "sumod.h"
+#include "r600_dpm.h"
+#include "cypress_dpm.h"
+#include "sumo_dpm.h"
+#include "atom.h"
+
+#define SUMO_MAX_DEEPSLEEP_DIVIDER_ID 5
+#define SUMO_MINIMUM_ENGINE_CLOCK 800
+#define BOOST_DPM_LEVEL 7
+
+static const u32 sumo_utc[SUMO_PM_NUMBER_OF_TC] =
+{
+	SUMO_UTC_DFLT_00,
+	SUMO_UTC_DFLT_01,
+	SUMO_UTC_DFLT_02,
+	SUMO_UTC_DFLT_03,
+	SUMO_UTC_DFLT_04,
+	SUMO_UTC_DFLT_05,
+	SUMO_UTC_DFLT_06,
+	SUMO_UTC_DFLT_07,
+	SUMO_UTC_DFLT_08,
+	SUMO_UTC_DFLT_09,
+	SUMO_UTC_DFLT_10,
+	SUMO_UTC_DFLT_11,
+	SUMO_UTC_DFLT_12,
+	SUMO_UTC_DFLT_13,
+	SUMO_UTC_DFLT_14,
+};
+
+static const u32 sumo_dtc[SUMO_PM_NUMBER_OF_TC] =
+{
+	SUMO_DTC_DFLT_00,
+	SUMO_DTC_DFLT_01,
+	SUMO_DTC_DFLT_02,
+	SUMO_DTC_DFLT_03,
+	SUMO_DTC_DFLT_04,
+	SUMO_DTC_DFLT_05,
+	SUMO_DTC_DFLT_06,
+	SUMO_DTC_DFLT_07,
+	SUMO_DTC_DFLT_08,
+	SUMO_DTC_DFLT_09,
+	SUMO_DTC_DFLT_10,
+	SUMO_DTC_DFLT_11,
+	SUMO_DTC_DFLT_12,
+	SUMO_DTC_DFLT_13,
+	SUMO_DTC_DFLT_14,
+};
+
+struct sumo_ps *sumo_get_ps(struct radeon_ps *rps)
+{
+	struct sumo_ps *ps = rps->ps_priv;
+
+	return ps;
+}
+
+struct sumo_power_info *sumo_get_pi(struct radeon_device *rdev)
+{
+	struct sumo_power_info *pi = rdev->pm.dpm.priv;
+
+	return pi;
+}
+
+u32 sumo_get_xclk(struct radeon_device *rdev)
+{
+	return rdev->clock.spll.reference_freq;
+}
+
+static void sumo_gfx_clockgating_enable(struct radeon_device *rdev, bool enable)
+{
+	if (enable)
+		WREG32_P(SCLK_PWRMGT_CNTL, DYN_GFX_CLK_OFF_EN, ~DYN_GFX_CLK_OFF_EN);
+	else {
+		WREG32_P(SCLK_PWRMGT_CNTL, 0, ~DYN_GFX_CLK_OFF_EN);
+		WREG32_P(SCLK_PWRMGT_CNTL, GFX_CLK_FORCE_ON, ~GFX_CLK_FORCE_ON);
+		WREG32_P(SCLK_PWRMGT_CNTL, 0, ~GFX_CLK_FORCE_ON);
+		RREG32(GB_ADDR_CONFIG);
+	}
+}
+
+#define CGCG_CGTT_LOCAL0_MASK 0xE5BFFFFF
+#define CGCG_CGTT_LOCAL1_MASK 0xEFFF07FF
+
+static void sumo_mg_clockgating_enable(struct radeon_device *rdev, bool enable)
+{
+	u32 local0;
+	u32 local1;
+
+	local0 = RREG32(CG_CGTT_LOCAL_0);
+	local1 = RREG32(CG_CGTT_LOCAL_1);
+
+	if (enable) {
+		WREG32(CG_CGTT_LOCAL_0, (0 & CGCG_CGTT_LOCAL0_MASK) | (local0 & ~CGCG_CGTT_LOCAL0_MASK) );
+		WREG32(CG_CGTT_LOCAL_1, (0 & CGCG_CGTT_LOCAL1_MASK) | (local1 & ~CGCG_CGTT_LOCAL1_MASK) );
+	} else {
+		WREG32(CG_CGTT_LOCAL_0, (0xFFFFFFFF & CGCG_CGTT_LOCAL0_MASK) | (local0 & ~CGCG_CGTT_LOCAL0_MASK) );
+		WREG32(CG_CGTT_LOCAL_1, (0xFFFFCFFF & CGCG_CGTT_LOCAL1_MASK) | (local1 & ~CGCG_CGTT_LOCAL1_MASK) );
+	}
+}
+
+static void sumo_program_git(struct radeon_device *rdev)
+{
+	u32 p, u;
+	u32 xclk = sumo_get_xclk(rdev);
+
+	r600_calculate_u_and_p(SUMO_GICST_DFLT,
+			       xclk, 16, &p, &u);
+
+	WREG32_P(CG_GIT, CG_GICST(p), ~CG_GICST_MASK);
+}
+
+static void sumo_program_grsd(struct radeon_device *rdev)
+{
+	u32 p, u;
+	u32 xclk = sumo_get_xclk(rdev);
+	u32 grs = 256 * 25 / 100;
+
+	r600_calculate_u_and_p(1, xclk, 14, &p, &u);
+
+	WREG32(CG_GCOOR, PHC(grs) | SDC(p) | SU(u));
+}
+
+static void sumo_gfx_clockgating_initialize(struct radeon_device *rdev)
+{
+	sumo_program_git(rdev);
+	sumo_program_grsd(rdev);
+}
+
+static void sumo_gfx_powergating_initialize(struct radeon_device *rdev)
+{
+	u32 rcu_pwr_gating_cntl;
+	u32 p, u;
+	u32 p_c, p_p, d_p;
+	u32 r_t, i_t;
+	u32 xclk = sumo_get_xclk(rdev);
+
+	if (rdev->family == CHIP_PALM) {
+		p_c = 4;
+		d_p = 10;
+		r_t = 10;
+		i_t = 4;
+		p_p = 50 + 1000/200 + 6 * 32;
+	} else {
+		p_c = 16;
+		d_p = 50;
+		r_t = 50;
+		i_t  = 50;
+		p_p = 113;
+	}
+
+	WREG32(CG_SCRATCH2, 0x01B60A17);
+
+	r600_calculate_u_and_p(SUMO_GFXPOWERGATINGT_DFLT,
+			       xclk, 16, &p, &u);
+
+	WREG32_P(CG_PWR_GATING_CNTL, PGP(p) | PGU(u),
+		 ~(PGP_MASK | PGU_MASK));
+
+	r600_calculate_u_and_p(SUMO_VOLTAGEDROPT_DFLT,
+			       xclk, 16, &p, &u);
+
+	WREG32_P(CG_CG_VOLTAGE_CNTL, PGP(p) | PGU(u),
+		 ~(PGP_MASK | PGU_MASK));
+
+	if (rdev->family == CHIP_PALM) {
+		WREG32_RCU(RCU_PWR_GATING_SEQ0, 0x10103210);
+		WREG32_RCU(RCU_PWR_GATING_SEQ1, 0x10101010);
+	} else {
+		WREG32_RCU(RCU_PWR_GATING_SEQ0, 0x76543210);
+		WREG32_RCU(RCU_PWR_GATING_SEQ1, 0xFEDCBA98);
+	}
+
+	rcu_pwr_gating_cntl = RREG32_RCU(RCU_PWR_GATING_CNTL);
+	rcu_pwr_gating_cntl &=
+		~(RSVD_MASK | PCV_MASK | PGS_MASK);
+	rcu_pwr_gating_cntl |= PCV(p_c) | PGS(1) | PWR_GATING_EN;
+	if (rdev->family == CHIP_PALM) {
+		rcu_pwr_gating_cntl &= ~PCP_MASK;
+		rcu_pwr_gating_cntl |= PCP(0x77);
+	}
+	WREG32_RCU(RCU_PWR_GATING_CNTL, rcu_pwr_gating_cntl);
+
+	rcu_pwr_gating_cntl = RREG32_RCU(RCU_PWR_GATING_CNTL_2);
+	rcu_pwr_gating_cntl &= ~(MPPU_MASK | MPPD_MASK);
+	rcu_pwr_gating_cntl |= MPPU(p_p) | MPPD(50);
+	WREG32_RCU(RCU_PWR_GATING_CNTL_2, rcu_pwr_gating_cntl);
+
+	rcu_pwr_gating_cntl = RREG32_RCU(RCU_PWR_GATING_CNTL_3);
+	rcu_pwr_gating_cntl &= ~(DPPU_MASK | DPPD_MASK);
+	rcu_pwr_gating_cntl |= DPPU(d_p) | DPPD(50);
+	WREG32_RCU(RCU_PWR_GATING_CNTL_3, rcu_pwr_gating_cntl);
+
+	rcu_pwr_gating_cntl = RREG32_RCU(RCU_PWR_GATING_CNTL_4);
+	rcu_pwr_gating_cntl &= ~(RT_MASK | IT_MASK);
+	rcu_pwr_gating_cntl |= RT(r_t) | IT(i_t);
+	WREG32_RCU(RCU_PWR_GATING_CNTL_4, rcu_pwr_gating_cntl);
+
+	if (rdev->family == CHIP_PALM)
+		WREG32_RCU(RCU_PWR_GATING_CNTL_5, 0xA02);
+
+	sumo_smu_pg_init(rdev);
+
+	rcu_pwr_gating_cntl = RREG32_RCU(RCU_PWR_GATING_CNTL);
+	rcu_pwr_gating_cntl &=
+		~(RSVD_MASK | PCV_MASK | PGS_MASK);
+	rcu_pwr_gating_cntl |= PCV(p_c) | PGS(4) | PWR_GATING_EN;
+	if (rdev->family == CHIP_PALM) {
+		rcu_pwr_gating_cntl &= ~PCP_MASK;
+		rcu_pwr_gating_cntl |= PCP(0x77);
+	}
+	WREG32_RCU(RCU_PWR_GATING_CNTL, rcu_pwr_gating_cntl);
+
+	if (rdev->family == CHIP_PALM) {
+		rcu_pwr_gating_cntl = RREG32_RCU(RCU_PWR_GATING_CNTL_2);
+		rcu_pwr_gating_cntl &= ~(MPPU_MASK | MPPD_MASK);
+		rcu_pwr_gating_cntl |= MPPU(113) | MPPD(50);
+		WREG32_RCU(RCU_PWR_GATING_CNTL_2, rcu_pwr_gating_cntl);
+
+		rcu_pwr_gating_cntl = RREG32_RCU(RCU_PWR_GATING_CNTL_3);
+		rcu_pwr_gating_cntl &= ~(DPPU_MASK | DPPD_MASK);
+		rcu_pwr_gating_cntl |= DPPU(16) | DPPD(50);
+		WREG32_RCU(RCU_PWR_GATING_CNTL_3, rcu_pwr_gating_cntl);
+	}
+
+	sumo_smu_pg_init(rdev);
+
+	rcu_pwr_gating_cntl = RREG32_RCU(RCU_PWR_GATING_CNTL);
+	rcu_pwr_gating_cntl &=
+		~(RSVD_MASK | PCV_MASK | PGS_MASK);
+	rcu_pwr_gating_cntl |= PGS(5) | PWR_GATING_EN;
+
+	if (rdev->family == CHIP_PALM) {
+		rcu_pwr_gating_cntl |= PCV(4);
+		rcu_pwr_gating_cntl &= ~PCP_MASK;
+		rcu_pwr_gating_cntl |= PCP(0x77);
+	} else
+		rcu_pwr_gating_cntl |= PCV(11);
+	WREG32_RCU(RCU_PWR_GATING_CNTL, rcu_pwr_gating_cntl);
+
+	if (rdev->family == CHIP_PALM) {
+		rcu_pwr_gating_cntl = RREG32_RCU(RCU_PWR_GATING_CNTL_2);
+		rcu_pwr_gating_cntl &= ~(MPPU_MASK | MPPD_MASK);
+		rcu_pwr_gating_cntl |= MPPU(113) | MPPD(50);
+		WREG32_RCU(RCU_PWR_GATING_CNTL_2, rcu_pwr_gating_cntl);
+
+		rcu_pwr_gating_cntl = RREG32_RCU(RCU_PWR_GATING_CNTL_3);
+		rcu_pwr_gating_cntl &= ~(DPPU_MASK | DPPD_MASK);
+		rcu_pwr_gating_cntl |= DPPU(22) | DPPD(50);
+		WREG32_RCU(RCU_PWR_GATING_CNTL_3, rcu_pwr_gating_cntl);
+	}
+
+	sumo_smu_pg_init(rdev);
+}
+
+static void sumo_gfx_powergating_enable(struct radeon_device *rdev, bool enable)
+{
+	if (enable)
+		WREG32_P(CG_PWR_GATING_CNTL, DYN_PWR_DOWN_EN, ~DYN_PWR_DOWN_EN);
+	else {
+		WREG32_P(CG_PWR_GATING_CNTL, 0, ~DYN_PWR_DOWN_EN);
+		RREG32(GB_ADDR_CONFIG);
+	}
+}
+
+static int sumo_enable_clock_power_gating(struct radeon_device *rdev)
+{
+	struct sumo_power_info *pi = sumo_get_pi(rdev);
+
+	if (pi->enable_gfx_clock_gating)
+		sumo_gfx_clockgating_initialize(rdev);
+	if (pi->enable_gfx_power_gating)
+		sumo_gfx_powergating_initialize(rdev);
+	if (pi->enable_mg_clock_gating)
+		sumo_mg_clockgating_enable(rdev, true);
+	if (pi->enable_gfx_clock_gating)
+		sumo_gfx_clockgating_enable(rdev, true);
+	if (pi->enable_gfx_power_gating)
+		sumo_gfx_powergating_enable(rdev, true);
+
+	return 0;
+}
+
+static void sumo_disable_clock_power_gating(struct radeon_device *rdev)
+{
+	struct sumo_power_info *pi = sumo_get_pi(rdev);
+
+	if (pi->enable_gfx_clock_gating)
+		sumo_gfx_clockgating_enable(rdev, false);
+	if (pi->enable_gfx_power_gating)
+		sumo_gfx_powergating_enable(rdev, false);
+	if (pi->enable_mg_clock_gating)
+		sumo_mg_clockgating_enable(rdev, false);
+}
+
+static void sumo_calculate_bsp(struct radeon_device *rdev,
+			       u32 high_clk)
+{
+	struct sumo_power_info *pi = sumo_get_pi(rdev);
+	u32 xclk = sumo_get_xclk(rdev);
+
+	pi->pasi = 65535 * 100 / high_clk;
+	pi->asi = 65535 * 100 / high_clk;
+
+	r600_calculate_u_and_p(pi->asi,
+			       xclk, 16, &pi->bsp, &pi->bsu);
+
+	r600_calculate_u_and_p(pi->pasi,
+			       xclk, 16, &pi->pbsp, &pi->pbsu);
+
+	pi->dsp = BSP(pi->bsp) | BSU(pi->bsu);
+	pi->psp = BSP(pi->pbsp) | BSU(pi->pbsu);
+}
+
+static void sumo_init_bsp(struct radeon_device *rdev)
+{
+	struct sumo_power_info *pi = sumo_get_pi(rdev);
+
+	WREG32(CG_BSP_0, pi->psp);
+}
+
+
+static void sumo_program_bsp(struct radeon_device *rdev)
+{
+	struct sumo_power_info *pi = sumo_get_pi(rdev);
+	struct sumo_ps *ps = sumo_get_ps(rdev->pm.dpm.requested_ps);
+	u32 i;
+	u32 highest_engine_clock = ps->levels[ps->num_levels - 1].sclk;
+
+	if (ps->flags & SUMO_POWERSTATE_FLAGS_BOOST_STATE)
+		highest_engine_clock = pi->boost_pl.sclk;
+
+	sumo_calculate_bsp(rdev, highest_engine_clock);
+
+	for (i = 0; i < ps->num_levels - 1; i++)
+		WREG32(CG_BSP_0 + (i * 4), pi->dsp);
+
+	WREG32(CG_BSP_0 + (i * 4), pi->psp);
+
+	if (ps->flags & SUMO_POWERSTATE_FLAGS_BOOST_STATE)
+		WREG32(CG_BSP_0 + (BOOST_DPM_LEVEL * 4), pi->psp);
+}
+
+static void sumo_write_at(struct radeon_device *rdev,
+			  u32 index, u32 value)
+{
+	if (index == 0)
+		WREG32(CG_AT_0, value);
+	else if (index == 1)
+		WREG32(CG_AT_1, value);
+	else if (index == 2)
+		WREG32(CG_AT_2, value);
+	else if (index == 3)
+		WREG32(CG_AT_3, value);
+	else if (index == 4)
+		WREG32(CG_AT_4, value);
+	else if (index == 5)
+		WREG32(CG_AT_5, value);
+	else if (index == 6)
+		WREG32(CG_AT_6, value);
+	else if (index == 7)
+		WREG32(CG_AT_7, value);
+}
+
+static void sumo_program_at(struct radeon_device *rdev)
+{
+	struct sumo_power_info *pi = sumo_get_pi(rdev);
+	struct sumo_ps *ps = sumo_get_ps(rdev->pm.dpm.requested_ps);
+	u32 asi;
+	u32 i;
+	u32 m_a;
+	u32 a_t;
+	u32 r[SUMO_MAX_HARDWARE_POWERLEVELS];
+	u32 l[SUMO_MAX_HARDWARE_POWERLEVELS];
+
+	r[0] = SUMO_R_DFLT0;
+	r[1] = SUMO_R_DFLT1;
+	r[2] = SUMO_R_DFLT2;
+	r[3] = SUMO_R_DFLT3;
+	r[4] = SUMO_R_DFLT4;
+
+	l[0] = SUMO_L_DFLT0;
+	l[1] = SUMO_L_DFLT1;
+	l[2] = SUMO_L_DFLT2;
+	l[3] = SUMO_L_DFLT3;
+	l[4] = SUMO_L_DFLT4;
+
+	for (i = 0; i < ps->num_levels; i++) {
+		asi = (i == ps->num_levels - 1) ? pi->pasi : pi->asi;
+
+		m_a = asi * ps->levels[i].sclk / 100;
+
+		a_t = CG_R(m_a * r[i] / 100) | CG_L(m_a * l[i] / 100);
+
+		sumo_write_at(rdev, i, a_t);
+	}
+
+	if (ps->flags & SUMO_POWERSTATE_FLAGS_BOOST_STATE) {
+		asi = pi->pasi;
+
+		m_a = asi * pi->boost_pl.sclk / 100;
+
+		a_t = CG_R(m_a * r[ps->num_levels - 1] / 100) |
+			CG_L(m_a * l[ps->num_levels - 1] / 100);
+
+		sumo_write_at(rdev, BOOST_DPM_LEVEL, a_t);
+	}
+}
+
+static void sumo_program_tp(struct radeon_device *rdev)
+{
+	int i;
+	enum r600_td td = R600_TD_DFLT;
+
+	for (i = 0; i < SUMO_PM_NUMBER_OF_TC; i++) {
+		WREG32_P(CG_FFCT_0 + (i * 4), UTC_0(sumo_utc[i]), ~UTC_0_MASK);
+		WREG32_P(CG_FFCT_0 + (i * 4), DTC_0(sumo_dtc[i]), ~DTC_0_MASK);
+	}
+
+	if (td == R600_TD_AUTO)
+		WREG32_P(SCLK_PWRMGT_CNTL, 0, ~FIR_FORCE_TREND_SEL);
+	else
+		WREG32_P(SCLK_PWRMGT_CNTL, FIR_FORCE_TREND_SEL, ~FIR_FORCE_TREND_SEL);
+
+	if (td == R600_TD_UP)
+		WREG32_P(SCLK_PWRMGT_CNTL, 0, ~FIR_TREND_MODE);
+
+	if (td == R600_TD_DOWN)
+		WREG32_P(SCLK_PWRMGT_CNTL, FIR_TREND_MODE, ~FIR_TREND_MODE);
+}
+
+static void sumo_program_vc(struct radeon_device *rdev)
+{
+	WREG32(CG_FTV, SUMO_VRC_DFLT);
+}
+
+static void sumo_clear_vc(struct radeon_device *rdev)
+{
+	WREG32(CG_FTV, 0);
+}
+
+static void sumo_program_sstp(struct radeon_device *rdev)
+{
+	u32 p, u;
+	u32 xclk = sumo_get_xclk(rdev);
+
+	r600_calculate_u_and_p(SUMO_SST_DFLT,
+			       xclk, 16, &p, &u);
+
+	WREG32(CG_SSP, SSTU(u) | SST(p));
+}
+
+static void sumo_set_divider_value(struct radeon_device *rdev,
+				   u32 index, u32 divider)
+{
+	u32 reg_index = index / 4;
+	u32 field_index = index % 4;
+
+	if (field_index == 0)
+		WREG32_P(CG_SCLK_DPM_CTRL + (reg_index * 4),
+			 SCLK_FSTATE_0_DIV(divider), ~SCLK_FSTATE_0_DIV_MASK);
+	else if (field_index == 1)
+		WREG32_P(CG_SCLK_DPM_CTRL + (reg_index * 4),
+			 SCLK_FSTATE_1_DIV(divider), ~SCLK_FSTATE_1_DIV_MASK);
+	else if (field_index == 2)
+		WREG32_P(CG_SCLK_DPM_CTRL + (reg_index * 4),
+			 SCLK_FSTATE_2_DIV(divider), ~SCLK_FSTATE_2_DIV_MASK);
+	else if (field_index == 3)
+		WREG32_P(CG_SCLK_DPM_CTRL + (reg_index * 4),
+			 SCLK_FSTATE_3_DIV(divider), ~SCLK_FSTATE_3_DIV_MASK);
+}
+
+static void sumo_set_ds_dividers(struct radeon_device *rdev,
+				 u32 index, u32 divider)
+{
+	struct sumo_power_info *pi = sumo_get_pi(rdev);
+
+	if (pi->enable_sclk_ds) {
+		u32 dpm_ctrl = RREG32(CG_SCLK_DPM_CTRL_6);
+
+		dpm_ctrl &= ~(0x7 << (index * 3));
+		dpm_ctrl |= (divider << (index * 3));
+		WREG32(CG_SCLK_DPM_CTRL_6, dpm_ctrl);
+	}
+}
+
+static void sumo_set_ss_dividers(struct radeon_device *rdev,
+				 u32 index, u32 divider)
+{
+	struct sumo_power_info *pi = sumo_get_pi(rdev);
+
+	if (pi->enable_sclk_ds) {
+		u32 dpm_ctrl = RREG32(CG_SCLK_DPM_CTRL_11);
+
+		dpm_ctrl &= ~(0x7 << (index * 3));
+		dpm_ctrl |= (divider << (index * 3));
+		WREG32(CG_SCLK_DPM_CTRL_11, dpm_ctrl);
+	}
+}
+
+static void sumo_set_vid(struct radeon_device *rdev, u32 index, u32 vid)
+{
+	u32 voltage_cntl = RREG32(CG_DPM_VOLTAGE_CNTL);
+
+	voltage_cntl &= ~(DPM_STATE0_LEVEL_MASK << (index * 2));
+	voltage_cntl |= (vid << (DPM_STATE0_LEVEL_SHIFT + index * 2));
+	WREG32(CG_DPM_VOLTAGE_CNTL, voltage_cntl);
+}
+
+static void sumo_set_allos_gnb_slow(struct radeon_device *rdev, u32 index, u32 gnb_slow)
+{
+	struct sumo_power_info *pi = sumo_get_pi(rdev);
+	u32 temp = gnb_slow;
+	u32 cg_sclk_dpm_ctrl_3;
+
+	if (pi->driver_nbps_policy_disable)
+		temp = 1;
+
+	cg_sclk_dpm_ctrl_3 = RREG32(CG_SCLK_DPM_CTRL_3);
+	cg_sclk_dpm_ctrl_3 &= ~(GNB_SLOW_FSTATE_0_MASK << index);
+	cg_sclk_dpm_ctrl_3 |= (temp << (GNB_SLOW_FSTATE_0_SHIFT + index));
+
+	WREG32(CG_SCLK_DPM_CTRL_3, cg_sclk_dpm_ctrl_3);
+}
+
+static void sumo_program_power_level(struct radeon_device *rdev,
+				     struct sumo_pl *pl, u32 index)
+{
+	struct sumo_power_info *pi = sumo_get_pi(rdev);
+	int ret;
+	struct atom_clock_dividers dividers;
+	u32 ds_en = RREG32(DEEP_SLEEP_CNTL) & ENABLE_DS;
+
+	ret = radeon_atom_get_clock_dividers(rdev, COMPUTE_ENGINE_PLL_PARAM,
+					     pl->sclk, false, &dividers);
+	if (ret)
+		return;
+
+	sumo_set_divider_value(rdev, index, dividers.post_div);
+
+	sumo_set_vid(rdev, index, pl->vddc_index);
+
+	if (pl->ss_divider_index == 0 || pl->ds_divider_index == 0) {
+		if (ds_en)
+			WREG32_P(DEEP_SLEEP_CNTL, 0, ~ENABLE_DS);
+	} else {
+		sumo_set_ss_dividers(rdev, index, pl->ss_divider_index);
+		sumo_set_ds_dividers(rdev, index, pl->ds_divider_index);
+
+		if (!ds_en)
+			WREG32_P(DEEP_SLEEP_CNTL, ENABLE_DS, ~ENABLE_DS);
+	}
+
+	sumo_set_allos_gnb_slow(rdev, index, pl->allow_gnb_slow);
+
+	if (pi->enable_boost)
+		sumo_set_tdp_limit(rdev, index, pl->sclk_dpm_tdp_limit);
+}
+
+static void sumo_power_level_enable(struct radeon_device *rdev, u32 index, bool enable)
+{
+	u32 reg_index = index / 4;
+	u32 field_index = index % 4;
+
+	if (field_index == 0)
+		WREG32_P(CG_SCLK_DPM_CTRL + (reg_index * 4),
+			 enable ? SCLK_FSTATE_0_VLD : 0, ~SCLK_FSTATE_0_VLD);
+	else if (field_index == 1)
+		WREG32_P(CG_SCLK_DPM_CTRL + (reg_index * 4),
+			 enable ? SCLK_FSTATE_1_VLD : 0, ~SCLK_FSTATE_1_VLD);
+	else if (field_index == 2)
+		WREG32_P(CG_SCLK_DPM_CTRL + (reg_index * 4),
+			 enable ? SCLK_FSTATE_2_VLD : 0, ~SCLK_FSTATE_2_VLD);
+	else if (field_index == 3)
+		WREG32_P(CG_SCLK_DPM_CTRL + (reg_index * 4),
+			 enable ? SCLK_FSTATE_3_VLD : 0, ~SCLK_FSTATE_3_VLD);
+}
+
+static bool sumo_dpm_enabled(struct radeon_device *rdev)
+{
+	if (RREG32(CG_SCLK_DPM_CTRL_3) & DPM_SCLK_ENABLE)
+		return true;
+	else
+		return false;
+}
+
+static void sumo_start_dpm(struct radeon_device *rdev)
+{
+	WREG32_P(CG_SCLK_DPM_CTRL_3, DPM_SCLK_ENABLE, ~DPM_SCLK_ENABLE);
+}
+
+static void sumo_stop_dpm(struct radeon_device *rdev)
+{
+	WREG32_P(CG_SCLK_DPM_CTRL_3, 0, ~DPM_SCLK_ENABLE);
+}
+
+static void sumo_set_forced_mode(struct radeon_device *rdev, bool enable)
+{
+	if (enable)
+		WREG32_P(CG_SCLK_DPM_CTRL_3, FORCE_SCLK_STATE_EN, ~FORCE_SCLK_STATE_EN);
+	else
+		WREG32_P(CG_SCLK_DPM_CTRL_3, 0, ~FORCE_SCLK_STATE_EN);
+}
+
+static void sumo_set_forced_mode_enabled(struct radeon_device *rdev)
+{
+	int i;
+
+	sumo_set_forced_mode(rdev, true);
+	for (i = 0; i < rdev->usec_timeout; i++) {
+		if (RREG32(CG_SCLK_STATUS) & SCLK_OVERCLK_DETECT)
+			break;
+		udelay(1);
+	}
+}
+
+static void sumo_wait_for_level_0(struct radeon_device *rdev)
+{
+	int i;
+
+	for (i = 0; i < rdev->usec_timeout; i++) {
+		if ((RREG32(TARGET_AND_CURRENT_PROFILE_INDEX) & CURR_SCLK_INDEX_MASK) == 0)
+			break;
+		udelay(1);
+	}
+	for (i = 0; i < rdev->usec_timeout; i++) {
+		if ((RREG32(TARGET_AND_CURRENT_PROFILE_INDEX) & CURR_INDEX_MASK) == 0)
+			break;
+		udelay(1);
+	}
+}
+
+static void sumo_set_forced_mode_disabled(struct radeon_device *rdev)
+{
+	sumo_set_forced_mode(rdev, false);
+}
+
+static void sumo_enable_power_level_0(struct radeon_device *rdev)
+{
+	sumo_power_level_enable(rdev, 0, true);
+}
+
+static void sumo_patch_boost_state(struct radeon_device *rdev)
+{
+	struct sumo_power_info *pi = sumo_get_pi(rdev);
+	struct sumo_ps *new_ps = sumo_get_ps(rdev->pm.dpm.requested_ps);
+
+	if (new_ps->flags & SUMO_POWERSTATE_FLAGS_BOOST_STATE) {
+		pi->boost_pl = new_ps->levels[new_ps->num_levels - 1];
+		pi->boost_pl.sclk = pi->sys_info.boost_sclk;
+		pi->boost_pl.vddc_index = pi->sys_info.boost_vid_2bit;
+		pi->boost_pl.sclk_dpm_tdp_limit = pi->sys_info.sclk_dpm_tdp_limit_boost;
+	}
+}
+
+static void sumo_pre_notify_alt_vddnb_change(struct radeon_device *rdev)
+{
+	struct sumo_ps *new_ps = sumo_get_ps(rdev->pm.dpm.requested_ps);
+	struct sumo_ps *old_ps = sumo_get_ps(rdev->pm.dpm.current_ps);
+	u32 nbps1_old = 0;
+	u32 nbps1_new = 0;
+
+	if (old_ps != NULL)
+		nbps1_old = (old_ps->flags & SUMO_POWERSTATE_FLAGS_FORCE_NBPS1_STATE) ? 1 : 0;
+
+	nbps1_new = (new_ps->flags & SUMO_POWERSTATE_FLAGS_FORCE_NBPS1_STATE) ? 1 : 0;
+
+	if (nbps1_old == 1 && nbps1_new == 0)
+		sumo_smu_notify_alt_vddnb_change(rdev, 0, 0);
+}
+
+static void sumo_post_notify_alt_vddnb_change(struct radeon_device *rdev)
+{
+	struct sumo_ps *new_ps = sumo_get_ps(rdev->pm.dpm.requested_ps);
+	struct sumo_ps *old_ps = sumo_get_ps(rdev->pm.dpm.current_ps);
+	u32 nbps1_old = 0;
+	u32 nbps1_new = 0;
+
+	if (old_ps != NULL)
+		nbps1_old = (old_ps->flags & SUMO_POWERSTATE_FLAGS_FORCE_NBPS1_STATE)? 1 : 0;
+
+	nbps1_new = (new_ps->flags & SUMO_POWERSTATE_FLAGS_FORCE_NBPS1_STATE)? 1 : 0;
+
+	if (nbps1_old == 0 && nbps1_new == 1)
+		sumo_smu_notify_alt_vddnb_change(rdev, 1, 1);
+}
+
+static void sumo_enable_boost(struct radeon_device *rdev, bool enable)
+{
+	struct sumo_ps *new_ps = sumo_get_ps(rdev->pm.dpm.requested_ps);
+
+	if (enable) {
+		if (new_ps->flags & SUMO_POWERSTATE_FLAGS_BOOST_STATE)
+			sumo_boost_state_enable(rdev, true);
+	} else
+		sumo_boost_state_enable(rdev, false);
+}
+
+static void sumo_update_current_power_levels(struct radeon_device *rdev)
+{
+	struct sumo_ps *new_ps = sumo_get_ps(rdev->pm.dpm.requested_ps);
+	struct sumo_power_info *pi = sumo_get_pi(rdev);
+
+	pi->current_ps = *new_ps;
+}
+
+static void sumo_set_forced_level(struct radeon_device *rdev, u32 index)
+{
+	WREG32_P(CG_SCLK_DPM_CTRL_3, FORCE_SCLK_STATE(index), ~FORCE_SCLK_STATE_MASK);
+}
+
+static void sumo_set_forced_level_0(struct radeon_device *rdev)
+{
+	sumo_set_forced_level(rdev, 0);
+}
+
+static void sumo_program_wl(struct radeon_device *rdev)
+{
+	struct sumo_ps *new_ps = sumo_get_ps(rdev->pm.dpm.requested_ps);
+	u32 dpm_ctrl4 = RREG32(CG_SCLK_DPM_CTRL_4);
+
+	dpm_ctrl4 &= 0xFFFFFF00;
+	dpm_ctrl4 |= (1 << (new_ps->num_levels - 1));
+
+	if (new_ps->flags & SUMO_POWERSTATE_FLAGS_BOOST_STATE)
+		dpm_ctrl4 |= (1 << BOOST_DPM_LEVEL);
+
+	WREG32(CG_SCLK_DPM_CTRL_4, dpm_ctrl4);
+}
+
+static void sumo_program_power_levels_0_to_n(struct radeon_device *rdev)
+{
+	struct sumo_power_info *pi = sumo_get_pi(rdev);
+	struct sumo_ps *new_ps = sumo_get_ps(rdev->pm.dpm.requested_ps);
+	struct sumo_ps *old_ps = sumo_get_ps(rdev->pm.dpm.current_ps);
+	u32 i;
+	u32 n_current_state_levels = (old_ps == NULL) ? 1 : old_ps->num_levels;
+
+	for (i = 0; i < new_ps->num_levels; i++) {
+		sumo_program_power_level(rdev, &new_ps->levels[i], i);
+		sumo_power_level_enable(rdev, i, true);
+	}
+
+	for (i = new_ps->num_levels; i < n_current_state_levels; i++)
+		sumo_power_level_enable(rdev, i, false);
+
+	if (new_ps->flags & SUMO_POWERSTATE_FLAGS_BOOST_STATE)
+		sumo_program_power_level(rdev, &pi->boost_pl, BOOST_DPM_LEVEL);
+}
+
+static void sumo_enable_acpi_pm(struct radeon_device *rdev)
+{
+	WREG32_P(GENERAL_PWRMGT, STATIC_PM_EN, ~STATIC_PM_EN);
+}
+
+static void sumo_program_power_level_enter_state(struct radeon_device *rdev)
+{
+	WREG32_P(CG_SCLK_DPM_CTRL_5, SCLK_FSTATE_BOOTUP(0), ~SCLK_FSTATE_BOOTUP_MASK);
+}
+
+static void sumo_program_acpi_power_level(struct radeon_device *rdev)
+{
+	struct sumo_power_info *pi = sumo_get_pi(rdev);
+	struct atom_clock_dividers dividers;
+	int ret;
+
+        ret = radeon_atom_get_clock_dividers(rdev, COMPUTE_ENGINE_PLL_PARAM,
+                                             pi->acpi_pl.sclk,
+					     false, &dividers);
+	if (ret)
+		return;
+
+	WREG32_P(CG_ACPI_CNTL, SCLK_ACPI_DIV(dividers.post_div), ~SCLK_ACPI_DIV_MASK);
+	WREG32_P(CG_ACPI_VOLTAGE_CNTL, 0, ~ACPI_VOLTAGE_EN);
+}
+
+static void sumo_program_bootup_state(struct radeon_device *rdev)
+{
+	struct sumo_power_info *pi = sumo_get_pi(rdev);
+	u32 dpm_ctrl4 = RREG32(CG_SCLK_DPM_CTRL_4);
+	u32 i;
+
+	sumo_program_power_level(rdev, &pi->boot_pl, 0);
+
+	dpm_ctrl4 &= 0xFFFFFF00;
+	WREG32(CG_SCLK_DPM_CTRL_4, dpm_ctrl4);
+
+	for (i = 1; i < 8; i++)
+		sumo_power_level_enable(rdev, i, false);
+}
+
+static void sumo_take_smu_control(struct radeon_device *rdev, bool enable)
+{
+	u32 v = RREG32(DOUT_SCRATCH3);
+
+	if (enable)
+		v |= 0x4;
+	else
+		v &= 0xFFFFFFFB;
+
+	WREG32(DOUT_SCRATCH3, v);
+}
+
+static void sumo_enable_sclk_ds(struct radeon_device *rdev, bool enable)
+{
+	if (enable) {
+		u32 deep_sleep_cntl = RREG32(DEEP_SLEEP_CNTL);
+		u32 deep_sleep_cntl2 = RREG32(DEEP_SLEEP_CNTL2);
+		u32 t = 1;
+
+		deep_sleep_cntl &= ~R_DIS;
+		deep_sleep_cntl &= ~HS_MASK;
+		deep_sleep_cntl |= HS(t > 4095 ? 4095 : t);
+
+		deep_sleep_cntl2 |= LB_UFP_EN;
+		deep_sleep_cntl2 &= INOUT_C_MASK;
+		deep_sleep_cntl2 |= INOUT_C(0xf);
+
+		WREG32(DEEP_SLEEP_CNTL2, deep_sleep_cntl2);
+		WREG32(DEEP_SLEEP_CNTL, deep_sleep_cntl);
+	} else
+		WREG32_P(DEEP_SLEEP_CNTL, 0, ~ENABLE_DS);
+}
+
+static void sumo_program_bootup_at(struct radeon_device *rdev)
+{
+	WREG32_P(CG_AT_0, CG_R(0xffff), ~CG_R_MASK);
+	WREG32_P(CG_AT_0, CG_L(0), ~CG_L_MASK);
+}
+
+static void sumo_reset_am(struct radeon_device *rdev)
+{
+	WREG32_P(SCLK_PWRMGT_CNTL, FIR_RESET, ~FIR_RESET);
+}
+
+static void sumo_start_am(struct radeon_device *rdev)
+{
+	WREG32_P(SCLK_PWRMGT_CNTL, 0, ~FIR_RESET);
+}
+
+static void sumo_program_ttp(struct radeon_device *rdev)
+{
+	u32 xclk = sumo_get_xclk(rdev);
+	u32 p, u;
+	u32 cg_sclk_dpm_ctrl_5 = RREG32(CG_SCLK_DPM_CTRL_5);
+
+	r600_calculate_u_and_p(1000,
+			       xclk, 16, &p, &u);
+
+	cg_sclk_dpm_ctrl_5 &= ~(TT_TP_MASK | TT_TU_MASK);
+	cg_sclk_dpm_ctrl_5 |= TT_TP(p) | TT_TU(u);
+
+	WREG32(CG_SCLK_DPM_CTRL_5, cg_sclk_dpm_ctrl_5);
+}
+
+static void sumo_program_ttt(struct radeon_device *rdev)
+{
+	u32 cg_sclk_dpm_ctrl_3 = RREG32(CG_SCLK_DPM_CTRL_3);
+	struct sumo_power_info *pi = sumo_get_pi(rdev);
+
+	cg_sclk_dpm_ctrl_3 &= ~(GNB_TT_MASK | GNB_THERMTHRO_MASK);
+	cg_sclk_dpm_ctrl_3 |= GNB_TT(pi->thermal_auto_throttling + 49);
+
+	WREG32(CG_SCLK_DPM_CTRL_3, cg_sclk_dpm_ctrl_3);
+}
+
+
+static void sumo_enable_voltage_scaling(struct radeon_device *rdev, bool enable)
+{
+	if (enable) {
+		WREG32_P(CG_DPM_VOLTAGE_CNTL, DPM_VOLTAGE_EN, ~DPM_VOLTAGE_EN);
+		WREG32_P(CG_CG_VOLTAGE_CNTL, 0, ~CG_VOLTAGE_EN);
+	} else {
+		WREG32_P(CG_CG_VOLTAGE_CNTL, CG_VOLTAGE_EN, ~CG_VOLTAGE_EN);
+		WREG32_P(CG_DPM_VOLTAGE_CNTL, 0, ~DPM_VOLTAGE_EN);
+	}
+}
+
+static void sumo_override_cnb_thermal_events(struct radeon_device *rdev)
+{
+	WREG32_P(CG_SCLK_DPM_CTRL_3, CNB_THERMTHRO_MASK_SCLK,
+		 ~CNB_THERMTHRO_MASK_SCLK);
+}
+
+static void sumo_program_dc_hto(struct radeon_device *rdev)
+{
+	u32 cg_sclk_dpm_ctrl_4 = RREG32(CG_SCLK_DPM_CTRL_4);
+	u32 p, u;
+	u32 xclk = sumo_get_xclk(rdev);
+
+	r600_calculate_u_and_p(100000,
+			       xclk, 14, &p, &u);
+
+	cg_sclk_dpm_ctrl_4 &= ~(DC_HDC_MASK | DC_HU_MASK);
+	cg_sclk_dpm_ctrl_4 |= DC_HDC(p) | DC_HU(u);
+
+	WREG32(CG_SCLK_DPM_CTRL_4, cg_sclk_dpm_ctrl_4);
+}
+
+static void sumo_force_nbp_state(struct radeon_device *rdev)
+{
+	struct sumo_power_info *pi = sumo_get_pi(rdev);
+	struct sumo_ps *new_ps = sumo_get_ps(rdev->pm.dpm.requested_ps);
+
+	if (!pi->driver_nbps_policy_disable) {
+		if (new_ps->flags & SUMO_POWERSTATE_FLAGS_FORCE_NBPS1_STATE)
+			WREG32_P(CG_SCLK_DPM_CTRL_3, FORCE_NB_PSTATE_1, ~FORCE_NB_PSTATE_1);
+		else
+			WREG32_P(CG_SCLK_DPM_CTRL_3, 0, ~FORCE_NB_PSTATE_1);
+	}
+}
+
+static u32 sumo_get_sleep_divider_from_id(u32 id)
+{
+	return 1 << id;
+}
+
+static u32 sumo_get_sleep_divider_id_from_clock(struct radeon_device *rdev,
+						u32 sclk,
+						u32 min_sclk_in_sr)
+{
+	struct sumo_power_info *pi = sumo_get_pi(rdev);
+	u32 i;
+	u32 temp;
+	u32 min = (min_sclk_in_sr > SUMO_MINIMUM_ENGINE_CLOCK) ?
+		min_sclk_in_sr : SUMO_MINIMUM_ENGINE_CLOCK;
+
+	if (sclk < min)
+		return 0;
+
+	if (!pi->enable_sclk_ds)
+		return 0;
+
+	for (i = SUMO_MAX_DEEPSLEEP_DIVIDER_ID;  ; i--) {
+		temp = sclk / sumo_get_sleep_divider_from_id(i);
+
+		if (temp >= min || i == 0)
+			break;
+	}
+	return i;
+}
+
+static u32 sumo_get_valid_engine_clock(struct radeon_device *rdev,
+				       u32 lower_limit)
+{
+	struct sumo_power_info *pi = sumo_get_pi(rdev);
+	u32 i;
+
+	for (i = 0; i < pi->sys_info.sclk_voltage_mapping_table.num_max_dpm_entries; i++) {
+		if (pi->sys_info.sclk_voltage_mapping_table.entries[i].sclk_frequency >= lower_limit)
+			return pi->sys_info.sclk_voltage_mapping_table.entries[i].sclk_frequency;
+	}
+
+	return pi->sys_info.sclk_voltage_mapping_table.entries[pi->sys_info.sclk_voltage_mapping_table.num_max_dpm_entries - 1].sclk_frequency;
+}
+
+static void sumo_patch_thermal_state(struct radeon_device *rdev,
+				     struct sumo_ps *ps,
+				     struct sumo_ps *current_ps)
+{
+	struct sumo_power_info *pi = sumo_get_pi(rdev);
+	u32 sclk_in_sr = pi->sys_info.min_sclk; /* ??? */
+	u32 current_vddc;
+	u32 current_sclk;
+	u32 current_index = 0;
+
+	if (current_ps) {
+		current_vddc = current_ps->levels[current_index].vddc_index;
+		current_sclk = current_ps->levels[current_index].sclk;
+	} else {
+		current_vddc = pi->boot_pl.vddc_index;
+		current_sclk = pi->boot_pl.sclk;
+	}
+
+	ps->levels[0].vddc_index = current_vddc;
+
+	if (ps->levels[0].sclk > current_sclk)
+		ps->levels[0].sclk = current_sclk;
+
+	ps->levels[0].ss_divider_index =
+		sumo_get_sleep_divider_id_from_clock(rdev, ps->levels[0].sclk, sclk_in_sr);
+
+	ps->levels[0].ds_divider_index =
+		sumo_get_sleep_divider_id_from_clock(rdev, ps->levels[0].sclk, SUMO_MINIMUM_ENGINE_CLOCK);
+
+	if (ps->levels[0].ds_divider_index > ps->levels[0].ss_divider_index + 1)
+		ps->levels[0].ds_divider_index = ps->levels[0].ss_divider_index + 1;
+
+	if (ps->levels[0].ss_divider_index == ps->levels[0].ds_divider_index) {
+		if (ps->levels[0].ss_divider_index > 1)
+			ps->levels[0].ss_divider_index = ps->levels[0].ss_divider_index - 1;
+	}
+
+	if (ps->levels[0].ss_divider_index == 0)
+		ps->levels[0].ds_divider_index = 0;
+
+	if (ps->levels[0].ds_divider_index == 0)
+		ps->levels[0].ss_divider_index = 0;
+}
+
+static void sumo_apply_state_adjust_rules(struct radeon_device *rdev)
+{
+	struct radeon_ps *rps = rdev->pm.dpm.requested_ps;
+	struct sumo_ps *ps = sumo_get_ps(rps);
+	struct sumo_ps *current_ps = sumo_get_ps(rdev->pm.dpm.current_ps);
+	struct sumo_power_info *pi = sumo_get_pi(rdev);
+	u32 min_voltage = 0; /* ??? */
+	u32 min_sclk = pi->sys_info.min_sclk; /* XXX check against disp reqs */
+	u32 sclk_in_sr = pi->sys_info.min_sclk; /* ??? */
+	u32 i;
+
+	if (rps->class & ATOM_PPLIB_CLASSIFICATION_THERMAL)
+		return sumo_patch_thermal_state(rdev, ps, current_ps);
+
+	if (pi->enable_boost) {
+		if (rps->class & ATOM_PPLIB_CLASSIFICATION_UI_PERFORMANCE)
+			ps->flags |= SUMO_POWERSTATE_FLAGS_BOOST_STATE;
+	}
+
+	if ((rps->class & ATOM_PPLIB_CLASSIFICATION_UI_BATTERY) ||
+	    (rps->class & ATOM_PPLIB_CLASSIFICATION_SDSTATE) ||
+	    (rps->class & ATOM_PPLIB_CLASSIFICATION_HDSTATE))
+		ps->flags |= SUMO_POWERSTATE_FLAGS_FORCE_NBPS1_STATE;
+
+	for (i = 0; i < ps->num_levels; i++) {
+		if (ps->levels[i].vddc_index < min_voltage)
+			ps->levels[i].vddc_index = min_voltage;
+
+		if (ps->levels[i].sclk < min_sclk)
+			ps->levels[i].sclk =
+				sumo_get_valid_engine_clock(rdev, min_sclk);
+
+		ps->levels[i].ss_divider_index =
+			sumo_get_sleep_divider_id_from_clock(rdev, ps->levels[i].sclk, sclk_in_sr);
+
+		ps->levels[i].ds_divider_index =
+			sumo_get_sleep_divider_id_from_clock(rdev, ps->levels[i].sclk, SUMO_MINIMUM_ENGINE_CLOCK);
+
+		if (ps->levels[i].ds_divider_index > ps->levels[i].ss_divider_index + 1)
+			ps->levels[i].ds_divider_index = ps->levels[i].ss_divider_index + 1;
+
+		if (ps->levels[i].ss_divider_index == ps->levels[i].ds_divider_index) {
+			if (ps->levels[i].ss_divider_index > 1)
+				ps->levels[i].ss_divider_index = ps->levels[i].ss_divider_index - 1;
+		}
+
+		if (ps->levels[i].ss_divider_index == 0)
+			ps->levels[i].ds_divider_index = 0;
+
+		if (ps->levels[i].ds_divider_index == 0)
+			ps->levels[i].ss_divider_index = 0;
+
+		if (ps->flags & SUMO_POWERSTATE_FLAGS_FORCE_NBPS1_STATE)
+			ps->levels[i].allow_gnb_slow = 1;
+		else if ((rps->class & ATOM_PPLIB_CLASSIFICATION_UVDSTATE) ||
+			 (rps->class2 & ATOM_PPLIB_CLASSIFICATION2_MVC))
+			ps->levels[i].allow_gnb_slow = 0;
+		else if (i == ps->num_levels - 1)
+			ps->levels[i].allow_gnb_slow = 0;
+		else
+			ps->levels[i].allow_gnb_slow = 1;
+	}
+}
+
+static void sumo_cleanup_asic(struct radeon_device *rdev)
+{
+	sumo_take_smu_control(rdev, false);
+}
+
+static int sumo_set_thermal_temperature_range(struct radeon_device *rdev,
+					      int min_temp, int max_temp)
+{
+	int low_temp = 0 * 1000;
+	int high_temp = 255 * 1000;
+
+	if (low_temp < min_temp)
+		low_temp = min_temp;
+	if (high_temp > max_temp)
+		high_temp = max_temp;
+	if (high_temp < low_temp) {
+		DRM_ERROR("invalid thermal range: %d - %d\n", low_temp, high_temp);
+		return -EINVAL;
+	}
+
+	WREG32_P(CG_THERMAL_INT, DIG_THERM_INTH(49 + (high_temp / 1000)), ~DIG_THERM_INTH_MASK);
+	WREG32_P(CG_THERMAL_INT, DIG_THERM_INTL(49 + (low_temp / 1000)), ~DIG_THERM_INTL_MASK);
+
+	rdev->pm.dpm.thermal.min_temp = low_temp;
+	rdev->pm.dpm.thermal.max_temp = high_temp;
+
+	return 0;
+}
+
+int sumo_dpm_enable(struct radeon_device *rdev)
+{
+	struct sumo_power_info *pi = sumo_get_pi(rdev);
+
+	if (sumo_dpm_enabled(rdev))
+		return -EINVAL;
+
+	sumo_enable_clock_power_gating(rdev);
+	sumo_program_bootup_state(rdev);
+	sumo_init_bsp(rdev);
+	sumo_reset_am(rdev);
+	sumo_program_tp(rdev);
+	sumo_program_bootup_at(rdev);
+	sumo_start_am(rdev);
+	if (pi->enable_auto_thermal_throttling) {
+		sumo_program_ttp(rdev);
+		sumo_program_ttt(rdev);
+	}
+	sumo_program_dc_hto(rdev);
+	sumo_program_power_level_enter_state(rdev);
+	sumo_enable_voltage_scaling(rdev, true);
+	sumo_program_sstp(rdev);
+	sumo_program_vc(rdev);
+	sumo_override_cnb_thermal_events(rdev);
+	sumo_start_dpm(rdev);
+	sumo_wait_for_level_0(rdev);
+	if (pi->enable_sclk_ds)
+		sumo_enable_sclk_ds(rdev, true);
+	if (pi->enable_boost)
+		sumo_enable_boost_timer(rdev);
+
+	if (rdev->irq.installed &&
+	    r600_is_internal_thermal_sensor(rdev->pm.int_thermal_type)) {
+		sumo_set_thermal_temperature_range(rdev, R600_TEMP_RANGE_MIN, R600_TEMP_RANGE_MAX);
+		rdev->irq.dpm_thermal = true;
+		radeon_irq_set(rdev);
+	}
+
+	return 0;
+}
+
+void sumo_dpm_disable(struct radeon_device *rdev)
+{
+	struct sumo_power_info *pi = sumo_get_pi(rdev);
+
+	if (!sumo_dpm_enabled(rdev))
+		return;
+	sumo_disable_clock_power_gating(rdev);
+	if (pi->enable_sclk_ds)
+		sumo_enable_sclk_ds(rdev, false);
+	sumo_clear_vc(rdev);
+	sumo_wait_for_level_0(rdev);
+	sumo_stop_dpm(rdev);
+	sumo_enable_voltage_scaling(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);
+	}
+}
+
+int sumo_dpm_set_power_state(struct radeon_device *rdev)
+{
+	struct sumo_power_info *pi = sumo_get_pi(rdev);
+
+	if (pi->enable_dynamic_patch_ps)
+		sumo_apply_state_adjust_rules(rdev);
+	sumo_update_current_power_levels(rdev);
+	if (pi->enable_boost) {
+		sumo_enable_boost(rdev, false);
+		sumo_patch_boost_state(rdev);
+	}
+	if (pi->enable_dpm) {
+		sumo_pre_notify_alt_vddnb_change(rdev);
+		sumo_enable_power_level_0(rdev);
+		sumo_set_forced_level_0(rdev);
+		sumo_set_forced_mode_enabled(rdev);
+		sumo_wait_for_level_0(rdev);
+		sumo_program_power_levels_0_to_n(rdev);
+		sumo_program_wl(rdev);
+		sumo_program_bsp(rdev);
+		sumo_program_at(rdev);
+		sumo_force_nbp_state(rdev);
+		sumo_set_forced_mode_disabled(rdev);
+		sumo_set_forced_mode_enabled(rdev);
+		sumo_set_forced_mode_disabled(rdev);
+		sumo_post_notify_alt_vddnb_change(rdev);
+	}
+	if (pi->enable_boost)
+		sumo_enable_boost(rdev, true);
+
+	return 0;
+}
+
+void sumo_dpm_reset_asic(struct radeon_device *rdev)
+{
+	sumo_program_bootup_state(rdev);
+	sumo_enable_power_level_0(rdev);
+	sumo_set_forced_level_0(rdev);
+	sumo_set_forced_mode_enabled(rdev);
+	sumo_wait_for_level_0(rdev);
+	sumo_set_forced_mode_disabled(rdev);
+	sumo_set_forced_mode_enabled(rdev);
+	sumo_set_forced_mode_disabled(rdev);
+}
+
+void sumo_dpm_setup_asic(struct radeon_device *rdev)
+{
+	struct sumo_power_info *pi = sumo_get_pi(rdev);
+
+	sumo_initialize_m3_arb(rdev);
+	pi->fw_version = sumo_get_running_fw_version(rdev);
+	DRM_INFO("Found smc ucode version: 0x%08x\n", pi->fw_version);
+	sumo_program_acpi_power_level(rdev);
+	sumo_enable_acpi_pm(rdev);
+	sumo_take_smu_control(rdev, true);
+}
+
+void sumo_dpm_display_configuration_changed(struct radeon_device *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 sumo_patch_boot_state(struct radeon_device *rdev,
+				  struct sumo_ps *ps)
+{
+	struct sumo_power_info *pi = sumo_get_pi(rdev);
+
+	ps->num_levels = 1;
+	ps->flags = 0;
+	ps->levels[0] = pi->boot_pl;
+}
+
+static void sumo_parse_pplib_non_clock_info(struct radeon_device *rdev,
+					    struct radeon_ps *rps,
+					    struct _ATOM_PPLIB_NONCLOCK_INFO *non_clock_info,
+					    u8 table_rev)
+{
+	struct sumo_ps *ps = sumo_get_ps(rps);
+
+	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 {
+		rps->vclk = 0;
+		rps->dclk = 0;
+	}
+
+	if (rps->class & ATOM_PPLIB_CLASSIFICATION_BOOT) {
+		rdev->pm.dpm.boot_ps = rps;
+		sumo_patch_boot_state(rdev, ps);
+	}
+	if (rps->class & ATOM_PPLIB_CLASSIFICATION_UVDSTATE)
+		rdev->pm.dpm.uvd_ps = rps;
+}
+
+static void sumo_parse_pplib_clock_info(struct radeon_device *rdev,
+					struct radeon_ps *rps, int index,
+					union pplib_clock_info *clock_info)
+{
+	struct sumo_power_info *pi = sumo_get_pi(rdev);
+	struct sumo_ps *ps = sumo_get_ps(rps);
+	struct sumo_pl *pl = &ps->levels[index];
+	u32 sclk;
+
+	sclk = le16_to_cpu(clock_info->sumo.usEngineClockLow);
+	sclk |= clock_info->sumo.ucEngineClockHigh << 16;
+	pl->sclk = sclk;
+	pl->vddc_index = clock_info->sumo.vddcIndex;
+	pl->sclk_dpm_tdp_limit = clock_info->sumo.tdpLimit;
+
+	ps->num_levels = index + 1;
+
+	if (pi->enable_sclk_ds) {
+		pl->ds_divider_index = 5;
+		pl->ss_divider_index = 4;
+	}
+}
+
+static int sumo_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, k, non_clock_array_index, clock_array_index;
+	union pplib_clock_info *clock_info;
+	struct _StateArray *state_array;
+	struct _ClockInfoArray *clock_info_array;
+	struct _NonClockInfoArray *non_clock_info_array;
+	union power_info *power_info;
+	int index = GetIndexIntoMasterTable(DATA, PowerPlayInfo);
+        u16 data_offset;
+	u8 frev, crev;
+	u8 *power_state_offset;
+	struct sumo_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);
+
+	state_array = (struct _StateArray *)
+		(mode_info->atom_context->bios + data_offset +
+		 le16_to_cpu(power_info->pplib.usStateArrayOffset));
+	clock_info_array = (struct _ClockInfoArray *)
+		(mode_info->atom_context->bios + data_offset +
+		 le16_to_cpu(power_info->pplib.usClockInfoArrayOffset));
+	non_clock_info_array = (struct _NonClockInfoArray *)
+		(mode_info->atom_context->bios + data_offset +
+		 le16_to_cpu(power_info->pplib.usNonClockInfoArrayOffset));
+
+	rdev->pm.dpm.ps = kzalloc(sizeof(struct radeon_ps) *
+				  state_array->ucNumEntries, GFP_KERNEL);
+	if (!rdev->pm.dpm.ps)
+		return -ENOMEM;
+	power_state_offset = (u8 *)state_array->states;
+	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 < state_array->ucNumEntries; i++) {
+		power_state = (union pplib_power_state *)power_state_offset;
+		non_clock_array_index = power_state->v2.nonClockInfoIndex;
+		non_clock_info = (struct _ATOM_PPLIB_NONCLOCK_INFO *)
+			&non_clock_info_array->nonClockInfo[non_clock_array_index];
+		if (!rdev->pm.power_state[i].clock_info)
+			return -EINVAL;
+		ps = kzalloc(sizeof(struct sumo_ps), GFP_KERNEL);
+		if (ps == NULL) {
+			kfree(rdev->pm.dpm.ps);
+			return -ENOMEM;
+		}
+		rdev->pm.dpm.ps[i].ps_priv = ps;
+		k = 0;
+		for (j = 0; j < power_state->v2.ucNumDPMLevels; j++) {
+			clock_array_index = power_state->v2.clockInfoIndex[j];
+			if (k >= SUMO_MAX_HARDWARE_POWERLEVELS)
+				break;
+			clock_info = (union pplib_clock_info *)
+				&clock_info_array->clockInfo[clock_array_index * clock_info_array->ucEntrySize];
+			sumo_parse_pplib_clock_info(rdev,
+						    &rdev->pm.dpm.ps[i], k,
+						    clock_info);
+			k++;
+		}
+		sumo_parse_pplib_non_clock_info(rdev, &rdev->pm.dpm.ps[i],
+						non_clock_info,
+						non_clock_info_array->ucEntrySize);
+		power_state_offset += 2 + power_state->v2.ucNumDPMLevels;
+	}
+	rdev->pm.dpm.num_ps = state_array->ucNumEntries;
+	return 0;
+}
+
+static u32 sumo_convert_vid2_to_vid7(struct radeon_device *rdev, u32 vid_2bit)
+{
+	struct sumo_power_info *pi = sumo_get_pi(rdev);
+	u32 i;
+
+	for (i = 0; i < pi->sys_info.vid_mapping_table.num_entries; i++) {
+		if (pi->sys_info.vid_mapping_table.entries[i].vid_2bit == vid_2bit)
+			return pi->sys_info.vid_mapping_table.entries[i].vid_7bit;
+	}
+
+	return pi->sys_info.vid_mapping_table.entries[pi->sys_info.vid_mapping_table.num_entries - 1].vid_7bit;
+}
+
+static u16 sumo_convert_voltage_index_to_value(struct radeon_device *rdev,
+					       u32 vid_2bit)
+{
+	u32 vid_7bit = sumo_convert_vid2_to_vid7(rdev, vid_2bit);
+
+	if (vid_7bit > 0x7C)
+		return 0;
+
+	return (15500 - vid_7bit * 125 + 5) / 10;
+}
+
+static void sumo_construct_display_voltage_mapping_table(struct radeon_device *rdev,
+							 ATOM_CLK_VOLT_CAPABILITY *table)
+{
+	struct sumo_power_info *pi = sumo_get_pi(rdev);
+	u32 i;
+
+	for (i = 0; i < SUMO_MAX_NUMBER_VOLTAGES; i++) {
+		if (table[i].ulMaximumSupportedCLK == 0)
+			break;
+
+		pi->sys_info.disp_clk_voltage_mapping_table.display_clock_frequency[i] =
+			table[i].ulMaximumSupportedCLK;
+	}
+
+	pi->sys_info.disp_clk_voltage_mapping_table.num_max_voltage_levels = i;
+
+	if (pi->sys_info.disp_clk_voltage_mapping_table.num_max_voltage_levels == 0) {
+		pi->sys_info.disp_clk_voltage_mapping_table.display_clock_frequency[0] = 80000;
+		pi->sys_info.disp_clk_voltage_mapping_table.num_max_voltage_levels = 1;
+	}
+}
+
+static void sumo_construct_sclk_voltage_mapping_table(struct radeon_device *rdev,
+						      ATOM_AVAILABLE_SCLK_LIST *table)
+{
+	struct sumo_power_info *pi = sumo_get_pi(rdev);
+	u32 i;
+	u32 n = 0;
+	u32 prev_sclk = 0;
+
+	for (i = 0; i < SUMO_MAX_HARDWARE_POWERLEVELS; i++) {
+		if (table[i].ulSupportedSCLK > prev_sclk) {
+			pi->sys_info.sclk_voltage_mapping_table.entries[n].sclk_frequency =
+				table[i].ulSupportedSCLK;
+			pi->sys_info.sclk_voltage_mapping_table.entries[n].vid_2bit =
+				table[i].usVoltageIndex;
+			prev_sclk = table[i].ulSupportedSCLK;
+			n++;
+		}
+	}
+
+	pi->sys_info.sclk_voltage_mapping_table.num_max_dpm_entries = n;
+}
+
+static void sumo_construct_vid_mapping_table(struct radeon_device *rdev,
+					     ATOM_AVAILABLE_SCLK_LIST *table)
+{
+	struct sumo_power_info *pi = sumo_get_pi(rdev);
+	u32 i, j;
+
+	for (i = 0; i < SUMO_MAX_HARDWARE_POWERLEVELS; i++) {
+		if (table[i].ulSupportedSCLK != 0) {
+			pi->sys_info.vid_mapping_table.entries[table[i].usVoltageIndex].vid_7bit =
+				table[i].usVoltageID;
+			pi->sys_info.vid_mapping_table.entries[table[i].usVoltageIndex].vid_2bit =
+				table[i].usVoltageIndex;
+		}
+	}
+
+	for (i = 0; i < SUMO_MAX_NUMBER_VOLTAGES; i++) {
+		if (pi->sys_info.vid_mapping_table.entries[i].vid_7bit == 0) {
+			for (j = i + 1; j < SUMO_MAX_NUMBER_VOLTAGES; j++) {
+				if (pi->sys_info.vid_mapping_table.entries[j].vid_7bit != 0) {
+					pi->sys_info.vid_mapping_table.entries[i] =
+						pi->sys_info.vid_mapping_table.entries[j];
+					pi->sys_info.vid_mapping_table.entries[j].vid_7bit = 0;
+					break;
+				}
+			}
+
+			if (j == SUMO_MAX_NUMBER_VOLTAGES)
+				break;
+		}
+	}
+
+	pi->sys_info.vid_mapping_table.num_entries = i;
+}
+
+union igp_info {
+	struct _ATOM_INTEGRATED_SYSTEM_INFO info;
+	struct _ATOM_INTEGRATED_SYSTEM_INFO_V2 info_2;
+	struct _ATOM_INTEGRATED_SYSTEM_INFO_V5 info_5;
+	struct _ATOM_INTEGRATED_SYSTEM_INFO_V6 info_6;
+};
+
+static int sumo_parse_sys_info_table(struct radeon_device *rdev)
+{
+	struct sumo_power_info *pi = sumo_get_pi(rdev);
+	struct radeon_mode_info *mode_info = &rdev->mode_info;
+	int index = GetIndexIntoMasterTable(DATA, IntegratedSystemInfo);
+	union igp_info *igp_info;
+	u8 frev, crev;
+	u16 data_offset;
+	int i;
+
+	if (atom_parse_data_header(mode_info->atom_context, index, NULL,
+				   &frev, &crev, &data_offset)) {
+		igp_info = (union igp_info *)(mode_info->atom_context->bios +
+					      data_offset);
+
+		if (crev != 6) {
+			DRM_ERROR("Unsupported IGP table: %d %d\n", frev, crev);
+			return -EINVAL;
+		}
+		pi->sys_info.bootup_sclk = le32_to_cpu(igp_info->info_6.ulBootUpEngineClock);
+		pi->sys_info.min_sclk = le32_to_cpu(igp_info->info_6.ulMinEngineClock);
+		pi->sys_info.bootup_uma_clk = le32_to_cpu(igp_info->info_6.ulBootUpUMAClock);
+		pi->sys_info.bootup_nb_voltage_index =
+			le16_to_cpu(igp_info->info_6.usBootUpNBVoltage);
+		if (igp_info->info_6.ucHtcTmpLmt == 0)
+			pi->sys_info.htc_tmp_lmt = 203;
+		else
+			pi->sys_info.htc_tmp_lmt = igp_info->info_6.ucHtcTmpLmt;
+		if (igp_info->info_6.ucHtcHystLmt == 0)
+			pi->sys_info.htc_hyst_lmt = 5;
+		else
+			pi->sys_info.htc_hyst_lmt = igp_info->info_6.ucHtcHystLmt;
+		if (pi->sys_info.htc_tmp_lmt <= pi->sys_info.htc_hyst_lmt) {
+			DRM_ERROR("The htcTmpLmt should be larger than htcHystLmt.\n");
+		}
+		for (i = 0; i < NUMBER_OF_M3ARB_PARAM_SETS; i++) {
+			pi->sys_info.csr_m3_arb_cntl_default[i] =
+				le32_to_cpu(igp_info->info_6.ulCSR_M3_ARB_CNTL_DEFAULT[i]);
+			pi->sys_info.csr_m3_arb_cntl_uvd[i] =
+				le32_to_cpu(igp_info->info_6.ulCSR_M3_ARB_CNTL_UVD[i]);
+			pi->sys_info.csr_m3_arb_cntl_fs3d[i] =
+				le32_to_cpu(igp_info->info_6.ulCSR_M3_ARB_CNTL_FS3D[i]);
+		}
+		pi->sys_info.sclk_dpm_boost_margin =
+			le32_to_cpu(igp_info->info_6.SclkDpmBoostMargin);
+		pi->sys_info.sclk_dpm_throttle_margin =
+			le32_to_cpu(igp_info->info_6.SclkDpmThrottleMargin);
+		pi->sys_info.sclk_dpm_tdp_limit_pg =
+			le16_to_cpu(igp_info->info_6.SclkDpmTdpLimitPG);
+		pi->sys_info.gnb_tdp_limit = le16_to_cpu(igp_info->info_6.GnbTdpLimit);
+		pi->sys_info.sclk_dpm_tdp_limit_boost =
+			le16_to_cpu(igp_info->info_6.SclkDpmTdpLimitBoost);
+		pi->sys_info.boost_sclk = le32_to_cpu(igp_info->info_6.ulBoostEngineCLock);
+		pi->sys_info.boost_vid_2bit = igp_info->info_6.ulBoostVid_2bit;
+		if (igp_info->info_6.EnableBoost)
+			pi->sys_info.enable_boost = true;
+		else
+			pi->sys_info.enable_boost = false;
+		sumo_construct_display_voltage_mapping_table(rdev,
+							     igp_info->info_6.sDISPCLK_Voltage);
+		sumo_construct_sclk_voltage_mapping_table(rdev,
+							  igp_info->info_6.sAvail_SCLK);
+		sumo_construct_vid_mapping_table(rdev, igp_info->info_6.sAvail_SCLK);
+
+	}
+	return 0;
+}
+
+static void sumo_construct_boot_and_acpi_state(struct radeon_device *rdev)
+{
+	struct sumo_power_info *pi = sumo_get_pi(rdev);
+
+	pi->boot_pl.sclk = pi->sys_info.bootup_sclk;
+	pi->boot_pl.vddc_index = pi->sys_info.bootup_nb_voltage_index;
+	pi->boot_pl.ds_divider_index = 0;
+	pi->boot_pl.ss_divider_index = 0;
+	pi->boot_pl.allow_gnb_slow = 1;
+	pi->acpi_pl = pi->boot_pl;
+	pi->current_ps.num_levels = 1;
+	pi->current_ps.levels[0] = pi->boot_pl;
+}
+
+int sumo_dpm_init(struct radeon_device *rdev)
+{
+	struct sumo_power_info *pi;
+	u32 hw_rev = (RREG32(HW_REV) & ATI_REV_ID_MASK) >> ATI_REV_ID_SHIFT;
+	int ret;
+
+	pi = kzalloc(sizeof(struct sumo_power_info), GFP_KERNEL);
+	if (pi == NULL)
+		return -ENOMEM;
+	rdev->pm.dpm.priv = pi;
+
+	pi->driver_nbps_policy_disable = false;
+	if ((rdev->family == CHIP_PALM) && (hw_rev < 3))
+		pi->disable_gfx_power_gating_in_uvd = true;
+	else
+		pi->disable_gfx_power_gating_in_uvd = false;
+	pi->enable_alt_vddnb = true;
+	pi->enable_sclk_ds = true;
+	pi->enable_dynamic_m3_arbiter = false;
+	pi->enable_dynamic_patch_ps = true;
+	pi->enable_gfx_power_gating = true;
+	pi->enable_gfx_clock_gating = true;
+	pi->enable_mg_clock_gating = true;
+	pi->enable_auto_thermal_throttling = true;
+
+	ret = sumo_parse_sys_info_table(rdev);
+	if (ret)
+		return ret;
+
+	sumo_construct_boot_and_acpi_state(rdev);
+
+	ret = sumo_parse_power_table(rdev);
+	if (ret)
+		return ret;
+
+	pi->pasi = CYPRESS_HASI_DFLT;
+	pi->asi = RV770_ASI_DFLT;
+	pi->thermal_auto_throttling = pi->sys_info.htc_tmp_lmt;
+	pi->enable_boost = pi->sys_info.enable_boost;
+	pi->enable_dpm = true;
+
+	return 0;
+}
+
+void sumo_dpm_print_power_state(struct radeon_device *rdev,
+				struct radeon_ps *rps)
+{
+	int i;
+	struct sumo_ps *ps = sumo_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);
+	for (i = 0; i < ps->num_levels; i++) {
+		struct sumo_pl *pl = &ps->levels[i];
+		printk("\t\tpower level %d    sclk: %u vddc: %u\n",
+		       i, pl->sclk,
+		       sumo_convert_voltage_index_to_value(rdev, pl->vddc_index));
+	}
+	r600_dpm_print_ps_status(rdev, rps);
+}
+
+void sumo_dpm_fini(struct radeon_device *rdev)
+{
+	int i;
+
+	sumo_cleanup_asic(rdev); /* ??? */
+
+	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 sumo_dpm_get_sclk(struct radeon_device *rdev, bool low)
+{
+	struct sumo_ps *requested_state = sumo_get_ps(rdev->pm.dpm.requested_ps);
+
+	if (low)
+		return requested_state->levels[0].sclk;
+	else
+		return requested_state->levels[requested_state->num_levels - 1].sclk;
+}
+
+u32 sumo_dpm_get_mclk(struct radeon_device *rdev, bool low)
+{
+	struct sumo_power_info *pi = sumo_get_pi(rdev);
+
+	return pi->sys_info.bootup_uma_clk;
+}