drm/radeon/kms: add dpm support for rv7xx (v4)

This adds dpm support for rv7xx asics.  This includes:
- clockgating
- dynamic engine clock scaling
- dynamic memory clock scaling
- dynamic voltage scaling
- dynamic pcie gen1/gen2 switching

Set radeon.dpm=1 to enable.

v2: reduce stack usage
v3: fix 64 bit div
v4: fix state enable
Signed-off-by: NAlex Deucher <alexander.deucher@amd.com>

drivers/gpu/drm/radeon/Makefile

@@ -77,7 +77,8 @@ radeon-y += radeon_device.o radeon_asic.o radeon_kms.o \
 	evergreen_hdmi.o radeon_trace_points.o ni.o cayman_blit_shaders.o \
 	atombios_encoders.o radeon_semaphore.o radeon_sa.o atombios_i2c.o si.o \
 	si_blit_shaders.o radeon_prime.o radeon_uvd.o cik.o cik_blit_shaders.o \
-	r600_dpm.o rs780_dpm.o rv6xx_dpm.o
+	r600_dpm.o rs780_dpm.o rv6xx_dpm.o rv770_dpm.o rv730_dpm.o rv740_dpm.o \
+	rv770_smc.o
 
 radeon-$(CONFIG_COMPAT) += radeon_ioc32.o
 radeon-$(CONFIG_VGA_SWITCHEROO) += radeon_atpx_handler.o

drivers/gpu/drm/radeon/ppsmc.h

+/*
+ * 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.
+ *
+ */
+#ifndef PP_SMC_H
+#define PP_SMC_H
+
+#pragma pack(push, 1)
+
+#define PPSMC_SWSTATE_FLAG_DC                           0x01
+
+#define PPSMC_THERMAL_PROTECT_TYPE_INTERNAL             0x00
+#define PPSMC_THERMAL_PROTECT_TYPE_EXTERNAL             0x01
+#define PPSMC_THERMAL_PROTECT_TYPE_NONE                 0xff
+
+#define PPSMC_SYSTEMFLAG_GPIO_DC                        0x01
+#define PPSMC_SYSTEMFLAG_STEPVDDC                       0x02
+#define PPSMC_SYSTEMFLAG_GDDR5                          0x04
+#define PPSMC_SYSTEMFLAG_DISABLE_BABYSTEP               0x08
+#define PPSMC_SYSTEMFLAG_REGULATOR_HOT                  0x10
+
+#define PPSMC_EXTRAFLAGS_AC2DC_ACTION_MASK              0x07
+#define PPSMC_EXTRAFLAGS_AC2DC_DONT_WAIT_FOR_VBLANK     0x08
+#define PPSMC_EXTRAFLAGS_AC2DC_ACTION_GOTODPMLOWSTATE   0x00
+#define PPSMC_EXTRAFLAGS_AC2DC_ACTION_GOTOINITIALSTATE  0x01
+
+#define PPSMC_DISPLAY_WATERMARK_LOW                     0
+#define PPSMC_DISPLAY_WATERMARK_HIGH                    1
+
+#define PPSMC_STATEFLAG_AUTO_PULSE_SKIP    0x01
+
+#define PPSMC_Result_OK             ((uint8_t)0x01)
+#define PPSMC_Result_Failed         ((uint8_t)0xFF)
+
+typedef uint8_t PPSMC_Result;
+
+#define PPSMC_MSG_Halt                      ((uint8_t)0x10)
+#define PPSMC_MSG_Resume                    ((uint8_t)0x11)
+#define PPSMC_MSG_ZeroLevelsDisabled        ((uint8_t)0x13)
+#define PPSMC_MSG_OneLevelsDisabled         ((uint8_t)0x14)
+#define PPSMC_MSG_TwoLevelsDisabled         ((uint8_t)0x15)
+#define PPSMC_MSG_EnableThermalInterrupt    ((uint8_t)0x16)
+#define PPSMC_MSG_SwitchToSwState           ((uint8_t)0x20)
+#define PPSMC_MSG_SwitchToInitialState      ((uint8_t)0x40)
+#define PPSMC_MSG_NoForcedLevel             ((uint8_t)0x41)
+#define PPSMC_MSG_SwitchToMinimumPower      ((uint8_t)0x51)
+#define PPSMC_MSG_ResumeFromMinimumPower    ((uint8_t)0x52)
+#define PPSMC_MSG_NoDisplay                 ((uint8_t)0x5D)
+#define PPSMC_MSG_HasDisplay                ((uint8_t)0x5E)
+#define PPSMC_MSG_EnableULV                 ((uint8_t)0x62)
+#define PPSMC_MSG_DisableULV                ((uint8_t)0x63)
+#define PPSMC_MSG_EnterULV                  ((uint8_t)0x64)
+#define PPSMC_MSG_ExitULV                   ((uint8_t)0x65)
+#define PPSMC_MSG_ResetToDefaults           ((uint8_t)0x84)
+
+typedef uint8_t PPSMC_Msg;
+
+#pragma pack(pop)
+
+#endif

drivers/gpu/drm/radeon/r600.c

@@ -57,10 +57,14 @@ MODULE_FIRMWARE("radeon/RS780_pfp.bin");
 MODULE_FIRMWARE("radeon/RS780_me.bin");
 MODULE_FIRMWARE("radeon/RV770_pfp.bin");
 MODULE_FIRMWARE("radeon/RV770_me.bin");
+MODULE_FIRMWARE("radeon/RV770_smc.bin");
 MODULE_FIRMWARE("radeon/RV730_pfp.bin");
 MODULE_FIRMWARE("radeon/RV730_me.bin");
+MODULE_FIRMWARE("radeon/RV730_smc.bin");
+MODULE_FIRMWARE("radeon/RV740_smc.bin");
 MODULE_FIRMWARE("radeon/RV710_pfp.bin");
 MODULE_FIRMWARE("radeon/RV710_me.bin");
+MODULE_FIRMWARE("radeon/RV710_smc.bin");
 MODULE_FIRMWARE("radeon/R600_rlc.bin");
 MODULE_FIRMWARE("radeon/R700_rlc.bin");
 MODULE_FIRMWARE("radeon/CEDAR_pfp.bin");
@@ -2139,7 +2143,8 @@ int r600_init_microcode(struct radeon_device *rdev)
 	struct platform_device *pdev;
 	const char *chip_name;
 	const char *rlc_chip_name;
-	size_t pfp_req_size, me_req_size, rlc_req_size;
+	const char *smc_chip_name = "RV770";
+	size_t pfp_req_size, me_req_size, rlc_req_size, smc_req_size = 0;
 	char fw_name[30];
 	int err;
 
@@ -2185,15 +2190,26 @@ int r600_init_microcode(struct radeon_device *rdev)
 	case CHIP_RV770:
 		chip_name = "RV770";
 		rlc_chip_name = "R700";
+		smc_chip_name = "RV770";
+		smc_req_size = ALIGN(RV770_SMC_UCODE_SIZE, 4);
 		break;
 	case CHIP_RV730:
-	case CHIP_RV740:
 		chip_name = "RV730";
 		rlc_chip_name = "R700";
+		smc_chip_name = "RV730";
+		smc_req_size = ALIGN(RV730_SMC_UCODE_SIZE, 4);
 		break;
 	case CHIP_RV710:
 		chip_name = "RV710";
 		rlc_chip_name = "R700";
+		smc_chip_name = "RV710";
+		smc_req_size = ALIGN(RV710_SMC_UCODE_SIZE, 4);
+		break;
+	case CHIP_RV740:
+		chip_name = "RV730";
+		rlc_chip_name = "R700";
+		smc_chip_name = "RV740";
+		smc_req_size = ALIGN(RV740_SMC_UCODE_SIZE, 4);
 		break;
 	case CHIP_CEDAR:
 		chip_name = "CEDAR";
@@ -2277,6 +2293,19 @@ int r600_init_microcode(struct radeon_device *rdev)
 		err = -EINVAL;
 	}
 
+	if ((rdev->family >= CHIP_RV770) && (rdev->family <= CHIP_RV740)) {
+		snprintf(fw_name, sizeof(fw_name), "radeon/%s_smc.bin", smc_chip_name);
+		err = request_firmware(&rdev->smc_fw, fw_name, &pdev->dev);
+		if (err)
+			goto out;
+		if (rdev->smc_fw->size != smc_req_size) {
+			printk(KERN_ERR
+			       "smc: Bogus length %zu in firmware \"%s\"\n",
+			       rdev->smc_fw->size, fw_name);
+			err = -EINVAL;
+		}
+	}
+
 out:
 	platform_device_unregister(pdev);
 
@@ -2291,6 +2320,8 @@ int r600_init_microcode(struct radeon_device *rdev)
 		rdev->me_fw = NULL;
 		release_firmware(rdev->rlc_fw);
 		rdev->rlc_fw = NULL;
+		release_firmware(rdev->smc_fw);
+		rdev->smc_fw = NULL;
 	}
 	return err;
 }
@@ -4039,11 +4070,14 @@ int r600_irq_set(struct radeon_device *rdev)
 	if ((rdev->family > CHIP_R600) && (rdev->family < CHIP_RV770)) {
 		thermal_int = RREG32(CG_THERMAL_INT) &
 			~(THERM_INT_MASK_HIGH | THERM_INT_MASK_LOW);
+	} else if (rdev->family >= CHIP_RV770) {
+		thermal_int = RREG32(RV770_CG_THERMAL_INT) &
+			~(THERM_INT_MASK_HIGH | THERM_INT_MASK_LOW);
+	}
 	if (rdev->irq.dpm_thermal) {
 		DRM_DEBUG("dpm thermal\n");
 		thermal_int |= THERM_INT_MASK_HIGH | THERM_INT_MASK_LOW;
 	}
-	}
 
 	if (atomic_read(&rdev->irq.ring_int[RADEON_RING_TYPE_GFX_INDEX])) {
 		DRM_DEBUG("r600_irq_set: sw int\n");
@@ -4128,6 +4162,8 @@ int r600_irq_set(struct radeon_device *rdev)
 	}
 	if ((rdev->family > CHIP_R600) && (rdev->family < CHIP_RV770)) {
 		WREG32(CG_THERMAL_INT, thermal_int);
+	} else if (rdev->family >= CHIP_RV770) {
+		WREG32(RV770_CG_THERMAL_INT, thermal_int);
 	}
 
 	return 0;

drivers/gpu/drm/radeon/r600d.h

@@ -320,6 +320,8 @@
 #define 	THERM_INT_MASK_HIGH			(1 << 24)
 #define 	THERM_INT_MASK_LOW			(1 << 25)
 
+#define	RV770_CG_THERMAL_INT				0x734
+
 #define	HDP_HOST_PATH_CNTL				0x2C00
 #define	HDP_NONSURFACE_BASE				0x2C04
 #define	HDP_NONSURFACE_INFO				0x2C08

drivers/gpu/drm/radeon/radeon.h

@@ -1913,6 +1913,7 @@ struct radeon_device {
 	const struct firmware *uvd_fw;	/* UVD firmware */
 	const struct firmware *mec_fw;	/* CIK MEC firmware */
 	const struct firmware *sdma_fw;	/* CIK SDMA firmware */
+	const struct firmware *smc_fw;	/* SMC firmware */
 	struct r600_blit r600_blit;
 	struct r600_vram_scratch vram_scratch;
 	int msi_enabled; /* msi enabled */

drivers/gpu/drm/radeon/radeon_asic.c

@@ -1374,6 +1374,18 @@ static struct radeon_asic rv770_asic = {
 		.set_uvd_clocks = &rv770_set_uvd_clocks,
 		.get_temperature = &rv770_get_temp,
 	},
+	.dpm = {
+		.init = &rv770_dpm_init,
+		.setup_asic = &rv770_dpm_setup_asic,
+		.enable = &rv770_dpm_enable,
+		.disable = &rv770_dpm_disable,
+		.set_power_state = &rv770_dpm_set_power_state,
+		.display_configuration_changed = &rv770_dpm_display_configuration_changed,
+		.fini = &rv770_dpm_fini,
+		.get_sclk = &rv770_dpm_get_sclk,
+		.get_mclk = &rv770_dpm_get_mclk,
+		.print_power_state = &rv770_dpm_print_power_state,
+	},
 	.pflip = {
 		.pre_page_flip = &rs600_pre_page_flip,
 		.page_flip = &rv770_page_flip,

drivers/gpu/drm/radeon/radeon_asic.h

@@ -460,6 +460,18 @@ u32 rv770_get_xclk(struct radeon_device *rdev);
 int rv770_uvd_resume(struct radeon_device *rdev);
 int rv770_set_uvd_clocks(struct radeon_device *rdev, u32 vclk, u32 dclk);
 int rv770_get_temp(struct radeon_device *rdev);
+/* rv7xx pm */
+int rv770_dpm_init(struct radeon_device *rdev);
+int rv770_dpm_enable(struct radeon_device *rdev);
+void rv770_dpm_disable(struct radeon_device *rdev);
+int rv770_dpm_set_power_state(struct radeon_device *rdev);
+void rv770_dpm_setup_asic(struct radeon_device *rdev);
+void rv770_dpm_display_configuration_changed(struct radeon_device *rdev);
+void rv770_dpm_fini(struct radeon_device *rdev);
+u32 rv770_dpm_get_sclk(struct radeon_device *rdev, bool low);
+u32 rv770_dpm_get_mclk(struct radeon_device *rdev, bool low);
+void rv770_dpm_print_power_state(struct radeon_device *rdev,
+				 struct radeon_ps *ps);
 
 /*
  * evergreen

drivers/gpu/drm/radeon/radeon_pm.c

@@ -1037,6 +1037,10 @@ int radeon_pm_init(struct radeon_device *rdev)
 	case CHIP_RV670:
 	case CHIP_RS780:
 	case CHIP_RS880:
+	case CHIP_RV770:
+	case CHIP_RV730:
+	case CHIP_RV710:
+	case CHIP_RV740:
 		if (radeon_dpm == 1)
 			rdev->pm.pm_method = PM_METHOD_DPM;
 		else

drivers/gpu/drm/radeon/radeon_ucode.h

@@ -44,4 +44,25 @@
 #define BTC_MC_UCODE_SIZE            6024
 #define CAYMAN_MC_UCODE_SIZE         6037
 
+/* SMC */
+#define RV770_SMC_UCODE_START        0x0100
+#define RV770_SMC_UCODE_SIZE         0x410d
+#define RV770_SMC_INT_VECTOR_START   0xffc0
+#define RV770_SMC_INT_VECTOR_SIZE    0x0040
+
+#define RV730_SMC_UCODE_START        0x0100
+#define RV730_SMC_UCODE_SIZE         0x412c
+#define RV730_SMC_INT_VECTOR_START   0xffc0
+#define RV730_SMC_INT_VECTOR_SIZE    0x0040
+
+#define RV710_SMC_UCODE_START        0x0100
+#define RV710_SMC_UCODE_SIZE         0x3f1f
+#define RV710_SMC_INT_VECTOR_START   0xffc0
+#define RV710_SMC_INT_VECTOR_SIZE    0x0040
+
+#define RV740_SMC_UCODE_START        0x0100
+#define RV740_SMC_UCODE_SIZE         0x41c5
+#define RV740_SMC_INT_VECTOR_START   0xffc0
+#define RV740_SMC_INT_VECTOR_SIZE    0x0040
+
 #endif

drivers/gpu/drm/radeon/rv730_dpm.c

+/*
+ * 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 "rv730d.h"
+#include "r600_dpm.h"
+#include "rv770_dpm.h"
+#include "atom.h"
+
+#define MC_CG_ARB_FREQ_F0           0x0a
+#define MC_CG_ARB_FREQ_F1           0x0b
+#define MC_CG_ARB_FREQ_F2           0x0c
+#define MC_CG_ARB_FREQ_F3           0x0d
+
+struct rv7xx_ps *rv770_get_ps(struct radeon_ps *rps);
+struct rv7xx_power_info *rv770_get_pi(struct radeon_device *rdev);
+
+int rv730_populate_sclk_value(struct radeon_device *rdev,
+			      u32 engine_clock,
+			      RV770_SMC_SCLK_VALUE *sclk)
+{
+	struct rv7xx_power_info *pi = rv770_get_pi(rdev);
+	struct atom_clock_dividers dividers;
+	u32 spll_func_cntl = pi->clk_regs.rv730.cg_spll_func_cntl;
+	u32 spll_func_cntl_2 = pi->clk_regs.rv730.cg_spll_func_cntl_2;
+	u32 spll_func_cntl_3 = pi->clk_regs.rv730.cg_spll_func_cntl_3;
+	u32 cg_spll_spread_spectrum = pi->clk_regs.rv730.cg_spll_spread_spectrum;
+	u32 cg_spll_spread_spectrum_2 = pi->clk_regs.rv730.cg_spll_spread_spectrum_2;
+	u64 tmp;
+	u32 reference_clock = rdev->clock.spll.reference_freq;
+	u32 reference_divider, post_divider;
+	u32 fbdiv;
+	int ret;
+
+	ret = radeon_atom_get_clock_dividers(rdev, COMPUTE_ENGINE_PLL_PARAM,
+					     engine_clock, false, &dividers);
+	if (ret)
+		return ret;
+
+	reference_divider = 1 + dividers.ref_div;
+
+	if (dividers.enable_post_div)
+		post_divider = ((dividers.post_div >> 4) & 0xf) +
+			(dividers.post_div & 0xf) + 2;
+	else
+		post_divider = 1;
+
+	tmp = (u64) engine_clock * reference_divider * post_divider * 16384;
+	do_div(tmp, reference_clock);
+	fbdiv = (u32) tmp;
+
+	/* set up registers */
+	if (dividers.enable_post_div)
+		spll_func_cntl |= SPLL_DIVEN;
+	else
+		spll_func_cntl &= ~SPLL_DIVEN;
+	spll_func_cntl &= ~(SPLL_HILEN_MASK | SPLL_LOLEN_MASK | SPLL_REF_DIV_MASK);
+	spll_func_cntl |= SPLL_REF_DIV(dividers.ref_div);
+	spll_func_cntl |= SPLL_HILEN((dividers.post_div >> 4) & 0xf);
+	spll_func_cntl |= SPLL_LOLEN(dividers.post_div & 0xf);
+
+	spll_func_cntl_2 &= ~SCLK_MUX_SEL_MASK;
+	spll_func_cntl_2 |= SCLK_MUX_SEL(2);
+
+	spll_func_cntl_3 &= ~SPLL_FB_DIV_MASK;
+	spll_func_cntl_3 |= SPLL_FB_DIV(fbdiv);
+	spll_func_cntl_3 |= SPLL_DITHEN;
+
+	if (pi->sclk_ss) {
+		struct radeon_atom_ss ss;
+		u32 vco_freq = engine_clock * post_divider;
+
+		if (radeon_atombios_get_asic_ss_info(rdev, &ss,
+						     ASIC_INTERNAL_ENGINE_SS, vco_freq)) {
+			u32 clk_s = reference_clock * 5 / (reference_divider * ss.rate);
+			u32 clk_v = ss.percentage * fbdiv / (clk_s * 10000);
+
+			cg_spll_spread_spectrum &= ~CLK_S_MASK;
+			cg_spll_spread_spectrum |= CLK_S(clk_s);
+			cg_spll_spread_spectrum |= SSEN;
+
+			cg_spll_spread_spectrum_2 &= ~CLK_V_MASK;
+			cg_spll_spread_spectrum_2 |= CLK_V(clk_v);
+		}
+	}
+
+	sclk->sclk_value = cpu_to_be32(engine_clock);
+	sclk->vCG_SPLL_FUNC_CNTL = cpu_to_be32(spll_func_cntl);
+	sclk->vCG_SPLL_FUNC_CNTL_2 = cpu_to_be32(spll_func_cntl_2);
+	sclk->vCG_SPLL_FUNC_CNTL_3 = cpu_to_be32(spll_func_cntl_3);
+	sclk->vCG_SPLL_SPREAD_SPECTRUM = cpu_to_be32(cg_spll_spread_spectrum);
+	sclk->vCG_SPLL_SPREAD_SPECTRUM_2 = cpu_to_be32(cg_spll_spread_spectrum_2);
+
+	return 0;
+}
+
+int rv730_populate_mclk_value(struct radeon_device *rdev,
+			      u32 engine_clock, u32 memory_clock,
+			      LPRV7XX_SMC_MCLK_VALUE mclk)
+{
+	struct rv7xx_power_info *pi = rv770_get_pi(rdev);
+	u32 mclk_pwrmgt_cntl = pi->clk_regs.rv730.mclk_pwrmgt_cntl;
+	u32 dll_cntl = pi->clk_regs.rv730.dll_cntl;
+	u32 mpll_func_cntl = pi->clk_regs.rv730.mpll_func_cntl;
+	u32 mpll_func_cntl_2 = pi->clk_regs.rv730.mpll_func_cntl2;
+	u32 mpll_func_cntl_3 = pi->clk_regs.rv730.mpll_func_cntl3;
+	u32 mpll_ss = pi->clk_regs.rv730.mpll_ss;
+	u32 mpll_ss2 = pi->clk_regs.rv730.mpll_ss2;
+	struct atom_clock_dividers dividers;
+	u32 post_divider, reference_divider;
+	int ret;
+
+	ret = radeon_atom_get_clock_dividers(rdev, COMPUTE_MEMORY_PLL_PARAM,
+					     memory_clock, false, &dividers);
+	if (ret)
+		return ret;
+
+	reference_divider = dividers.ref_div + 1;
+
+	if (dividers.enable_post_div)
+		post_divider = ((dividers.post_div >> 4) & 0xf) +
+			(dividers.post_div & 0xf) + 2;
+	else
+		post_divider = 1;
+
+	/* setup the registers */
+	if (dividers.enable_post_div)
+		mpll_func_cntl |= MPLL_DIVEN;
+	else
+		mpll_func_cntl &= ~MPLL_DIVEN;
+
+	mpll_func_cntl &= ~(MPLL_REF_DIV_MASK | MPLL_HILEN_MASK | MPLL_LOLEN_MASK);
+	mpll_func_cntl |= MPLL_REF_DIV(dividers.ref_div);
+	mpll_func_cntl |= MPLL_HILEN((dividers.post_div >> 4) & 0xf);
+	mpll_func_cntl |= MPLL_LOLEN(dividers.post_div & 0xf);
+
+	mpll_func_cntl_3 &= ~MPLL_FB_DIV_MASK;
+	mpll_func_cntl_3 |= MPLL_FB_DIV(dividers.fb_div);
+	if (dividers.enable_dithen)
+		mpll_func_cntl_3 |= MPLL_DITHEN;
+	else
+		mpll_func_cntl_3 &= ~MPLL_DITHEN;
+
+	if (pi->mclk_ss) {
+		struct radeon_atom_ss ss;
+		u32 vco_freq = memory_clock * post_divider;
+
+		if (radeon_atombios_get_asic_ss_info(rdev, &ss,
+						     ASIC_INTERNAL_MEMORY_SS, vco_freq)) {
+			u32 reference_clock = rdev->clock.mpll.reference_freq;
+			u32 clk_s = reference_clock * 5 / (reference_divider * ss.rate);
+			u32 clk_v = ss.percentage * dividers.fb_div / (clk_s * 10000);
+
+			mpll_ss &= ~CLK_S_MASK;
+			mpll_ss |= CLK_S(clk_s);
+			mpll_ss |= SSEN;
+
+			mpll_ss2 &= ~CLK_V_MASK;
+			mpll_ss |= CLK_V(clk_v);
+		}
+	}
+
+
+	mclk->mclk730.vMCLK_PWRMGT_CNTL = cpu_to_be32(mclk_pwrmgt_cntl);
+	mclk->mclk730.vDLL_CNTL = cpu_to_be32(dll_cntl);
+	mclk->mclk730.mclk_value = cpu_to_be32(memory_clock);
+	mclk->mclk730.vMPLL_FUNC_CNTL = cpu_to_be32(mpll_func_cntl);
+	mclk->mclk730.vMPLL_FUNC_CNTL2 = cpu_to_be32(mpll_func_cntl_2);
+	mclk->mclk730.vMPLL_FUNC_CNTL3 = cpu_to_be32(mpll_func_cntl_3);
+	mclk->mclk730.vMPLL_SS = cpu_to_be32(mpll_ss);
+	mclk->mclk730.vMPLL_SS2 = cpu_to_be32(mpll_ss2);
+
+	return 0;
+}
+
+void rv730_read_clock_registers(struct radeon_device *rdev)
+{
+	struct rv7xx_power_info *pi = rv770_get_pi(rdev);
+
+	pi->clk_regs.rv730.cg_spll_func_cntl =
+		RREG32(CG_SPLL_FUNC_CNTL);
+	pi->clk_regs.rv730.cg_spll_func_cntl_2 =
+		RREG32(CG_SPLL_FUNC_CNTL_2);
+	pi->clk_regs.rv730.cg_spll_func_cntl_3 =
+		RREG32(CG_SPLL_FUNC_CNTL_3);
+	pi->clk_regs.rv730.cg_spll_spread_spectrum =
+		RREG32(CG_SPLL_SPREAD_SPECTRUM);
+	pi->clk_regs.rv730.cg_spll_spread_spectrum_2 =
+		RREG32(CG_SPLL_SPREAD_SPECTRUM_2);
+
+	pi->clk_regs.rv730.mclk_pwrmgt_cntl =
+		RREG32(TCI_MCLK_PWRMGT_CNTL);
+	pi->clk_regs.rv730.dll_cntl =
+		RREG32(TCI_DLL_CNTL);
+	pi->clk_regs.rv730.mpll_func_cntl =
+		RREG32(CG_MPLL_FUNC_CNTL);
+	pi->clk_regs.rv730.mpll_func_cntl2 =
+		RREG32(CG_MPLL_FUNC_CNTL_2);
+	pi->clk_regs.rv730.mpll_func_cntl3 =
+		RREG32(CG_MPLL_FUNC_CNTL_3);
+	pi->clk_regs.rv730.mpll_ss =
+		RREG32(CG_TCI_MPLL_SPREAD_SPECTRUM);
+	pi->clk_regs.rv730.mpll_ss2 =
+		RREG32(CG_TCI_MPLL_SPREAD_SPECTRUM_2);
+}
+
+int rv730_populate_smc_acpi_state(struct radeon_device *rdev,
+				  RV770_SMC_STATETABLE *table)
+{
+	struct rv7xx_power_info *pi = rv770_get_pi(rdev);
+	u32 mpll_func_cntl = 0;
+	u32 mpll_func_cntl_2 = 0 ;
+	u32 mpll_func_cntl_3 = 0;
+	u32 mclk_pwrmgt_cntl;
+	u32 dll_cntl;
+	u32 spll_func_cntl;
+	u32 spll_func_cntl_2;
+	u32 spll_func_cntl_3;
+
+	table->ACPIState = table->initialState;
+	table->ACPIState.flags &= ~PPSMC_SWSTATE_FLAG_DC;
+
+	if (pi->acpi_vddc) {
+		rv770_populate_vddc_value(rdev, pi->acpi_vddc,
+					  &table->ACPIState.levels[0].vddc);
+		table->ACPIState.levels[0].gen2PCIE = pi->pcie_gen2 ?
+			pi->acpi_pcie_gen2 : 0;
+		table->ACPIState.levels[0].gen2XSP =
+			pi->acpi_pcie_gen2;
+	} else {
+		rv770_populate_vddc_value(rdev, pi->min_vddc_in_table,
+					  &table->ACPIState.levels[0].vddc);
+		table->ACPIState.levels[0].gen2PCIE = 0;
+	}
+
+	mpll_func_cntl = pi->clk_regs.rv730.mpll_func_cntl;
+	mpll_func_cntl_2 = pi->clk_regs.rv730.mpll_func_cntl2;
+	mpll_func_cntl_3 = pi->clk_regs.rv730.mpll_func_cntl3;
+
+	mpll_func_cntl |= MPLL_RESET | MPLL_BYPASS_EN;
+	mpll_func_cntl &= ~MPLL_SLEEP;
+
+	mpll_func_cntl_2 &= ~MCLK_MUX_SEL_MASK;
+	mpll_func_cntl_2 |= MCLK_MUX_SEL(1);
+
+	mclk_pwrmgt_cntl = (MRDCKA_RESET |
+			    MRDCKB_RESET |
+			    MRDCKC_RESET |
+			    MRDCKD_RESET |
+			    MRDCKE_RESET |
+			    MRDCKF_RESET |
+			    MRDCKG_RESET |
+			    MRDCKH_RESET |
+			    MRDCKA_SLEEP |
+			    MRDCKB_SLEEP |
+			    MRDCKC_SLEEP |
+			    MRDCKD_SLEEP |
+			    MRDCKE_SLEEP |
+			    MRDCKF_SLEEP |
+			    MRDCKG_SLEEP |
+			    MRDCKH_SLEEP);
+
+	dll_cntl = 0xff000000;
+
+	spll_func_cntl = pi->clk_regs.rv730.cg_spll_func_cntl;
+	spll_func_cntl_2 = pi->clk_regs.rv730.cg_spll_func_cntl_2;
+	spll_func_cntl_3 = pi->clk_regs.rv730.cg_spll_func_cntl_3;
+
+	spll_func_cntl |= SPLL_RESET | SPLL_BYPASS_EN;
+	spll_func_cntl &= ~SPLL_SLEEP;
+
+	spll_func_cntl_2 &= ~SCLK_MUX_SEL_MASK;
+	spll_func_cntl_2 |= SCLK_MUX_SEL(4);
+
+	table->ACPIState.levels[0].mclk.mclk730.vMPLL_FUNC_CNTL = cpu_to_be32(mpll_func_cntl);
+	table->ACPIState.levels[0].mclk.mclk730.vMPLL_FUNC_CNTL2 = cpu_to_be32(mpll_func_cntl_2);
+	table->ACPIState.levels[0].mclk.mclk730.vMPLL_FUNC_CNTL3 = cpu_to_be32(mpll_func_cntl_3);
+	table->ACPIState.levels[0].mclk.mclk730.vMCLK_PWRMGT_CNTL = cpu_to_be32(mclk_pwrmgt_cntl);
+	table->ACPIState.levels[0].mclk.mclk730.vDLL_CNTL = cpu_to_be32(dll_cntl);
+
+	table->ACPIState.levels[0].mclk.mclk730.mclk_value = 0;
+
+	table->ACPIState.levels[0].sclk.vCG_SPLL_FUNC_CNTL = cpu_to_be32(spll_func_cntl);
+	table->ACPIState.levels[0].sclk.vCG_SPLL_FUNC_CNTL_2 = cpu_to_be32(spll_func_cntl_2);
+	table->ACPIState.levels[0].sclk.vCG_SPLL_FUNC_CNTL_3 = cpu_to_be32(spll_func_cntl_3);
+
+	table->ACPIState.levels[0].sclk.sclk_value = 0;
+
+	rv770_populate_mvdd_value(rdev, 0, &table->ACPIState.levels[0].mvdd);
+
+	table->ACPIState.levels[1] = table->ACPIState.levels[0];
+	table->ACPIState.levels[2] = table->ACPIState.levels[0];
+
+	return 0;
+}
+
+int rv730_populate_smc_initial_state(struct radeon_device *rdev,
+				     struct radeon_ps *radeon_state,
+				     RV770_SMC_STATETABLE *table)
+{
+	struct rv7xx_ps *initial_state = rv770_get_ps(radeon_state);
+	struct rv7xx_power_info *pi = rv770_get_pi(rdev);
+	u32 a_t;
+
+	table->initialState.levels[0].mclk.mclk730.vMPLL_FUNC_CNTL =
+		cpu_to_be32(pi->clk_regs.rv730.mpll_func_cntl);
+	table->initialState.levels[0].mclk.mclk730.vMPLL_FUNC_CNTL2 =
+		cpu_to_be32(pi->clk_regs.rv730.mpll_func_cntl2);
+	table->initialState.levels[0].mclk.mclk730.vMPLL_FUNC_CNTL3 =
+		cpu_to_be32(pi->clk_regs.rv730.mpll_func_cntl3);
+	table->initialState.levels[0].mclk.mclk730.vMCLK_PWRMGT_CNTL =
+		cpu_to_be32(pi->clk_regs.rv730.mclk_pwrmgt_cntl);
+	table->initialState.levels[0].mclk.mclk730.vDLL_CNTL =
+		cpu_to_be32(pi->clk_regs.rv730.dll_cntl);
+	table->initialState.levels[0].mclk.mclk730.vMPLL_SS =
+		cpu_to_be32(pi->clk_regs.rv730.mpll_ss);
+	table->initialState.levels[0].mclk.mclk730.vMPLL_SS2 =
+		cpu_to_be32(pi->clk_regs.rv730.mpll_ss2);
+
+	table->initialState.levels[0].mclk.mclk730.mclk_value =
+		cpu_to_be32(initial_state->low.mclk);
+
+	table->initialState.levels[0].sclk.vCG_SPLL_FUNC_CNTL =
+		cpu_to_be32(pi->clk_regs.rv730.cg_spll_func_cntl);
+	table->initialState.levels[0].sclk.vCG_SPLL_FUNC_CNTL_2 =
+		cpu_to_be32(pi->clk_regs.rv730.cg_spll_func_cntl_2);
+	table->initialState.levels[0].sclk.vCG_SPLL_FUNC_CNTL_3 =
+		cpu_to_be32(pi->clk_regs.rv730.cg_spll_func_cntl_3);
+	table->initialState.levels[0].sclk.vCG_SPLL_SPREAD_SPECTRUM =
+		cpu_to_be32(pi->clk_regs.rv730.cg_spll_spread_spectrum);
+	table->initialState.levels[0].sclk.vCG_SPLL_SPREAD_SPECTRUM_2 =
+		cpu_to_be32(pi->clk_regs.rv730.cg_spll_spread_spectrum_2);
+
+	table->initialState.levels[0].sclk.sclk_value =
+		cpu_to_be32(initial_state->low.sclk);
+
+	table->initialState.levels[0].arbValue = MC_CG_ARB_FREQ_F0;
+
+	table->initialState.levels[0].seqValue =
+		rv770_get_seq_value(rdev, &initial_state->low);
+
+	rv770_populate_vddc_value(rdev,
+				  initial_state->low.vddc,
+				  &table->initialState.levels[0].vddc);
+	rv770_populate_initial_mvdd_value(rdev,
+					  &table->initialState.levels[0].mvdd);
+
+	a_t = CG_R(0xffff) | CG_L(0);
+
+	table->initialState.levels[0].aT = cpu_to_be32(a_t);
+
+	table->initialState.levels[0].bSP = cpu_to_be32(pi->dsp);
+
+	if (pi->boot_in_gen2)
+		table->initialState.levels[0].gen2PCIE = 1;
+	else
+		table->initialState.levels[0].gen2PCIE = 0;
+	if (initial_state->low.flags & ATOM_PPLIB_R600_FLAGS_PCIEGEN2)
+		table->initialState.levels[0].gen2XSP = 1;
+	else
+		table->initialState.levels[0].gen2XSP = 0;
+
+	table->initialState.levels[1] = table->initialState.levels[0];
+	table->initialState.levels[2] = table->initialState.levels[0];
+
+	table->initialState.flags |= PPSMC_SWSTATE_FLAG_DC;
+
+	return 0;
+}
+
+void rv730_program_memory_timing_parameters(struct radeon_device *rdev,
+					    struct radeon_ps *radeon_state)
+{
+	struct rv7xx_ps *state = rv770_get_ps(radeon_state);
+	u32 arb_refresh_rate = 0;
+	u32 dram_timing = 0;
+	u32 dram_timing2 = 0;
+	u32 old_dram_timing = 0;
+	u32 old_dram_timing2 = 0;
+
+	arb_refresh_rate = RREG32(MC_ARB_RFSH_RATE) &
+		~(POWERMODE1_MASK | POWERMODE2_MASK | POWERMODE3_MASK);
+	arb_refresh_rate |=
+		(POWERMODE1(rv770_calculate_memory_refresh_rate(rdev, state->low.sclk)) |
+		 POWERMODE2(rv770_calculate_memory_refresh_rate(rdev, state->medium.sclk)) |
+		 POWERMODE3(rv770_calculate_memory_refresh_rate(rdev, state->high.sclk)));
+	WREG32(MC_ARB_RFSH_RATE, arb_refresh_rate);
+
+	/* save the boot dram timings */
+	old_dram_timing = RREG32(MC_ARB_DRAM_TIMING);
+	old_dram_timing2 = RREG32(MC_ARB_DRAM_TIMING2);
+
+	radeon_atom_set_engine_dram_timings(rdev,
+					    state->high.sclk,
+					    state->high.mclk);
+
+	dram_timing = RREG32(MC_ARB_DRAM_TIMING);
+	dram_timing2 = RREG32(MC_ARB_DRAM_TIMING2);
+
+	WREG32(MC_ARB_DRAM_TIMING_3, dram_timing);
+	WREG32(MC_ARB_DRAM_TIMING2_3, dram_timing2);
+
+	radeon_atom_set_engine_dram_timings(rdev,
+					    state->medium.sclk,
+					    state->medium.mclk);
+
+	dram_timing = RREG32(MC_ARB_DRAM_TIMING);
+	dram_timing2 = RREG32(MC_ARB_DRAM_TIMING2);
+
+	WREG32(MC_ARB_DRAM_TIMING_2, dram_timing);
+	WREG32(MC_ARB_DRAM_TIMING2_2, dram_timing2);
+
+	radeon_atom_set_engine_dram_timings(rdev,
+					    state->low.sclk,
+					    state->low.mclk);
+
+	dram_timing = RREG32(MC_ARB_DRAM_TIMING);
+	dram_timing2 = RREG32(MC_ARB_DRAM_TIMING2);
+
+	WREG32(MC_ARB_DRAM_TIMING_1, dram_timing);
+	WREG32(MC_ARB_DRAM_TIMING2_1, dram_timing2);
+
+	/* restore the boot dram timings */
+	WREG32(MC_ARB_DRAM_TIMING, old_dram_timing);
+	WREG32(MC_ARB_DRAM_TIMING2, old_dram_timing2);
+
+}
+
+void rv730_start_dpm(struct radeon_device *rdev)
+{
+	WREG32_P(SCLK_PWRMGT_CNTL, 0, ~SCLK_PWRMGT_OFF);
+
+	WREG32_P(TCI_MCLK_PWRMGT_CNTL, 0, ~MPLL_PWRMGT_OFF);
+
+	WREG32_P(GENERAL_PWRMGT, GLOBAL_PWRMGT_EN, ~GLOBAL_PWRMGT_EN);
+}
+
+void rv730_stop_dpm(struct radeon_device *rdev)
+{
+	PPSMC_Result result;
+
+	result = rv770_send_msg_to_smc(rdev, PPSMC_MSG_TwoLevelsDisabled);
+
+	if (result != PPSMC_Result_OK)
+		DRM_ERROR("Could not force DPM to low\n");
+
+	WREG32_P(GENERAL_PWRMGT, 0, ~GLOBAL_PWRMGT_EN);
+
+	WREG32_P(SCLK_PWRMGT_CNTL, SCLK_PWRMGT_OFF, ~SCLK_PWRMGT_OFF);
+
+	WREG32_P(TCI_MCLK_PWRMGT_CNTL, MPLL_PWRMGT_OFF, ~MPLL_PWRMGT_OFF);
+}
+
+void rv730_program_dcodt(struct radeon_device *rdev, bool use_dcodt)
+{
+	struct rv7xx_power_info *pi = rv770_get_pi(rdev);
+	u32 i = use_dcodt ? 0 : 1;
+	u32 mc4_io_pad_cntl;
+
+	mc4_io_pad_cntl = RREG32(MC4_IO_DQ_PAD_CNTL_D0_I0);
+	mc4_io_pad_cntl &= 0xFFFFFF00;
+	mc4_io_pad_cntl |= pi->odt_value_0[i];
+	WREG32(MC4_IO_DQ_PAD_CNTL_D0_I0, mc4_io_pad_cntl);
+	WREG32(MC4_IO_DQ_PAD_CNTL_D0_I1, mc4_io_pad_cntl);
+
+	mc4_io_pad_cntl = RREG32(MC4_IO_QS_PAD_CNTL_D0_I0);
+	mc4_io_pad_cntl &= 0xFFFFFF00;
+	mc4_io_pad_cntl |= pi->odt_value_1[i];
+	WREG32(MC4_IO_QS_PAD_CNTL_D0_I0, mc4_io_pad_cntl);
+	WREG32(MC4_IO_QS_PAD_CNTL_D0_I1, mc4_io_pad_cntl);
+}
+
+void rv730_get_odt_values(struct radeon_device *rdev)
+{
+	struct rv7xx_power_info *pi = rv770_get_pi(rdev);
+	u32 mc4_io_pad_cntl;
+
+	pi->odt_value_0[0] = (u8)0;
+	pi->odt_value_1[0] = (u8)0x80;
+
+	mc4_io_pad_cntl = RREG32(MC4_IO_DQ_PAD_CNTL_D0_I0);
+	pi->odt_value_0[1] = (u8)(mc4_io_pad_cntl & 0xff);
+
+	mc4_io_pad_cntl = RREG32(MC4_IO_QS_PAD_CNTL_D0_I0);
+	pi->odt_value_1[1] = (u8)(mc4_io_pad_cntl & 0xff);
+}

drivers/gpu/drm/radeon/rv730d.h

+/*
+ * 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.
+ *
+ */
+#ifndef RV730_H
+#define RV730_H
+
+#define	CG_SPLL_FUNC_CNTL				0x600
+#define		SPLL_RESET				(1 << 0)
+#define		SPLL_SLEEP				(1 << 1)
+#define		SPLL_DIVEN				(1 << 2)
+#define		SPLL_BYPASS_EN				(1 << 3)
+#define		SPLL_REF_DIV(x)				((x) << 4)
+#define		SPLL_REF_DIV_MASK			(0x3f << 4)
+#define		SPLL_HILEN(x)				((x) << 12)
+#define		SPLL_HILEN_MASK				(0xf << 12)
+#define		SPLL_LOLEN(x)				((x) << 16)
+#define		SPLL_LOLEN_MASK				(0xf << 16)
+#define	CG_SPLL_FUNC_CNTL_2				0x604
+#define		SCLK_MUX_SEL(x)				((x) << 0)
+#define		SCLK_MUX_SEL_MASK			(0x1ff << 0)
+#define	CG_SPLL_FUNC_CNTL_3				0x608
+#define		SPLL_FB_DIV(x)				((x) << 0)
+#define		SPLL_FB_DIV_MASK			(0x3ffffff << 0)
+#define		SPLL_DITHEN				(1 << 28)
+
+#define	CG_MPLL_FUNC_CNTL				0x624
+#define		MPLL_RESET				(1 << 0)
+#define		MPLL_SLEEP				(1 << 1)
+#define		MPLL_DIVEN				(1 << 2)
+#define		MPLL_BYPASS_EN				(1 << 3)
+#define		MPLL_REF_DIV(x)				((x) << 4)
+#define		MPLL_REF_DIV_MASK			(0x3f << 4)
+#define		MPLL_HILEN(x)				((x) << 12)
+#define		MPLL_HILEN_MASK				(0xf << 12)
+#define		MPLL_LOLEN(x)				((x) << 16)
+#define		MPLL_LOLEN_MASK				(0xf << 16)
+#define	CG_MPLL_FUNC_CNTL_2				0x628
+#define		MCLK_MUX_SEL(x)				((x) << 0)
+#define		MCLK_MUX_SEL_MASK			(0x1ff << 0)
+#define	CG_MPLL_FUNC_CNTL_3				0x62c
+#define		MPLL_FB_DIV(x)				((x) << 0)
+#define		MPLL_FB_DIV_MASK			(0x3ffffff << 0)
+#define		MPLL_DITHEN				(1 << 28)
+
+#define	CG_TCI_MPLL_SPREAD_SPECTRUM			0x634
+#define	CG_TCI_MPLL_SPREAD_SPECTRUM_2			0x638
+#define GENERAL_PWRMGT                                  0x63c
+#       define GLOBAL_PWRMGT_EN                         (1 << 0)
+#       define STATIC_PM_EN                             (1 << 1)
+#       define THERMAL_PROTECTION_DIS                   (1 << 2)
+#       define THERMAL_PROTECTION_TYPE                  (1 << 3)
+#       define ENABLE_GEN2PCIE                          (1 << 4)
+#       define ENABLE_GEN2XSP                           (1 << 5)
+#       define SW_SMIO_INDEX(x)                         ((x) << 6)
+#       define SW_SMIO_INDEX_MASK                       (3 << 6)
+#       define LOW_VOLT_D2_ACPI                         (1 << 8)
+#       define LOW_VOLT_D3_ACPI                         (1 << 9)
+#       define VOLT_PWRMGT_EN                           (1 << 10)
+#       define BACKBIAS_PAD_EN                          (1 << 18)
+#       define BACKBIAS_VALUE                           (1 << 19)
+#       define DYN_SPREAD_SPECTRUM_EN                   (1 << 23)
+#       define AC_DC_SW                                 (1 << 24)
+
+#define SCLK_PWRMGT_CNTL                                  0x644
+#       define SCLK_PWRMGT_OFF                            (1 << 0)
+#       define SCLK_LOW_D1                                (1 << 1)
+#       define FIR_RESET                                  (1 << 4)
+#       define FIR_FORCE_TREND_SEL                        (1 << 5)
+#       define FIR_TREND_MODE                             (1 << 6)
+#       define DYN_GFX_CLK_OFF_EN                         (1 << 7)
+#       define GFX_CLK_FORCE_ON                           (1 << 8)
+#       define GFX_CLK_REQUEST_OFF                        (1 << 9)
+#       define GFX_CLK_FORCE_OFF                          (1 << 10)
+#       define GFX_CLK_OFF_ACPI_D1                        (1 << 11)
+#       define GFX_CLK_OFF_ACPI_D2                        (1 << 12)
+#       define GFX_CLK_OFF_ACPI_D3                        (1 << 13)
+
+#define	TCI_MCLK_PWRMGT_CNTL				0x648
+#       define MPLL_PWRMGT_OFF                          (1 << 5)
+#       define DLL_READY                                (1 << 6)
+#       define MC_INT_CNTL                              (1 << 7)
+#       define MRDCKA_SLEEP                             (1 << 8)
+#       define MRDCKB_SLEEP                             (1 << 9)
+#       define MRDCKC_SLEEP                             (1 << 10)
+#       define MRDCKD_SLEEP                             (1 << 11)
+#       define MRDCKE_SLEEP                             (1 << 12)
+#       define MRDCKF_SLEEP                             (1 << 13)
+#       define MRDCKG_SLEEP                             (1 << 14)
+#       define MRDCKH_SLEEP                             (1 << 15)
+#       define MRDCKA_RESET                             (1 << 16)
+#       define MRDCKB_RESET                             (1 << 17)
+#       define MRDCKC_RESET                             (1 << 18)
+#       define MRDCKD_RESET                             (1 << 19)
+#       define MRDCKE_RESET                             (1 << 20)
+#       define MRDCKF_RESET                             (1 << 21)
+#       define MRDCKG_RESET                             (1 << 22)
+#       define MRDCKH_RESET                             (1 << 23)
+#       define DLL_READY_READ                           (1 << 24)
+#       define USE_DISPLAY_GAP                          (1 << 25)
+#       define USE_DISPLAY_URGENT_NORMAL                (1 << 26)
+#       define MPLL_TURNOFF_D2                          (1 << 28)
+#define	TCI_DLL_CNTL					0x64c
+
+#define	CG_PG_CNTL					0x858
+#       define PWRGATE_ENABLE                           (1 << 0)
+
+#define	CG_AT				                0x6d4
+#define		CG_R(x)					((x) << 0)
+#define		CG_R_MASK				(0xffff << 0)
+#define		CG_L(x)					((x) << 16)
+#define		CG_L_MASK				(0xffff << 16)
+
+#define	CG_SPLL_SPREAD_SPECTRUM				0x790
+#define		SSEN					(1 << 0)
+#define		CLK_S(x)				((x) << 4)
+#define		CLK_S_MASK				(0xfff << 4)
+#define	CG_SPLL_SPREAD_SPECTRUM_2			0x794
+#define		CLK_V(x)				((x) << 0)
+#define		CLK_V_MASK				(0x3ffffff << 0)
+
+#define	MC_ARB_DRAM_TIMING				0x2774
+#define	MC_ARB_DRAM_TIMING2				0x2778
+
+#define	MC_ARB_RFSH_RATE				0x27b0
+#define		POWERMODE0(x)				((x) << 0)
+#define		POWERMODE0_MASK				(0xff << 0)
+#define		POWERMODE1(x)				((x) << 8)
+#define		POWERMODE1_MASK				(0xff << 8)
+#define		POWERMODE2(x)				((x) << 16)
+#define		POWERMODE2_MASK				(0xff << 16)
+#define		POWERMODE3(x)				((x) << 24)
+#define		POWERMODE3_MASK				(0xff << 24)
+
+#define	MC_ARB_DRAM_TIMING_1				0x27f0
+#define	MC_ARB_DRAM_TIMING_2				0x27f4
+#define	MC_ARB_DRAM_TIMING_3				0x27f8
+#define	MC_ARB_DRAM_TIMING2_1				0x27fc
+#define	MC_ARB_DRAM_TIMING2_2				0x2800
+#define	MC_ARB_DRAM_TIMING2_3				0x2804
+
+#define	MC4_IO_DQ_PAD_CNTL_D0_I0			0x2978
+#define	MC4_IO_DQ_PAD_CNTL_D0_I1			0x297c
+#define	MC4_IO_QS_PAD_CNTL_D0_I0			0x2980
+#define	MC4_IO_QS_PAD_CNTL_D0_I1			0x2984
+
+#endif

drivers/gpu/drm/radeon/rv740_dpm.c

+/*
+ * 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 "rv740d.h"
+#include "r600_dpm.h"
+#include "rv770_dpm.h"
+#include "atom.h"
+
+struct rv7xx_ps *rv770_get_ps(struct radeon_ps *rps);
+struct rv7xx_power_info *rv770_get_pi(struct radeon_device *rdev);
+
+u32 rv740_get_decoded_reference_divider(u32 encoded_ref)
+{
+	u32 ref = 0;
+
+	switch (encoded_ref) {
+        case 0:
+		ref = 1;
+		break;
+        case 16:
+		ref = 2;
+		break;
+        case 17:
+		ref = 3;
+		break;
+        case 18:
+		ref = 2;
+		break;
+        case 19:
+		ref = 3;
+		break;
+        case 20:
+		ref = 4;
+		break;
+        case 21:
+		ref = 5;
+		break;
+        default:
+		DRM_ERROR("Invalid encoded Reference Divider\n");
+		ref = 0;
+		break;
+	}
+
+	return ref;
+}
+
+struct dll_speed_setting {
+	u16 min;
+	u16 max;
+	u32 dll_speed;
+};
+
+static struct dll_speed_setting dll_speed_table[16] =
+{
+	{ 270, 320, 0x0f },
+	{ 240, 270, 0x0e },
+	{ 200, 240, 0x0d },
+	{ 180, 200, 0x0c },
+	{ 160, 180, 0x0b },
+	{ 140, 160, 0x0a },
+	{ 120, 140, 0x09 },
+	{ 110, 120, 0x08 },
+	{  95, 110, 0x07 },
+	{  85,  95, 0x06 },
+	{  78,  85, 0x05 },
+	{  70,  78, 0x04 },
+	{  65,  70, 0x03 },
+	{  60,  65, 0x02 },
+	{  42,  60, 0x01 },
+	{  00,  42, 0x00 }
+};
+
+u32 rv740_get_dll_speed(bool is_gddr5, u32 memory_clock)
+{
+	int i;
+	u32 factor;
+	u16 data_rate;
+
+	if (is_gddr5)
+		factor = 4;
+	else
+		factor = 2;
+
+	data_rate = (u16)(memory_clock * factor / 1000);
+
+	if (data_rate < dll_speed_table[0].max) {
+		for (i = 0; i < 16; i++) {
+			if (data_rate > dll_speed_table[i].min &&
+			    data_rate <= dll_speed_table[i].max)
+				return dll_speed_table[i].dll_speed;
+		}
+	}
+
+	DRM_DEBUG_KMS("Target MCLK greater than largest MCLK in DLL speed table\n");
+
+	return 0x0f;
+}
+
+int rv740_populate_sclk_value(struct radeon_device *rdev, u32 engine_clock,
+			      RV770_SMC_SCLK_VALUE *sclk)
+{
+	struct rv7xx_power_info *pi = rv770_get_pi(rdev);
+	struct atom_clock_dividers dividers;
+	u32 spll_func_cntl = pi->clk_regs.rv770.cg_spll_func_cntl;
+	u32 spll_func_cntl_2 = pi->clk_regs.rv770.cg_spll_func_cntl_2;
+	u32 spll_func_cntl_3 = pi->clk_regs.rv770.cg_spll_func_cntl_3;
+	u32 cg_spll_spread_spectrum = pi->clk_regs.rv770.cg_spll_spread_spectrum;
+	u32 cg_spll_spread_spectrum_2 = pi->clk_regs.rv770.cg_spll_spread_spectrum_2;
+	u64 tmp;
+	u32 reference_clock = rdev->clock.spll.reference_freq;
+	u32 reference_divider;
+	u32 fbdiv;
+	int ret;
+
+	ret = radeon_atom_get_clock_dividers(rdev, COMPUTE_ENGINE_PLL_PARAM,
+					     engine_clock, false, &dividers);
+	if (ret)
+		return ret;
+
+	reference_divider = 1 + dividers.ref_div;
+
+	tmp = (u64) engine_clock * reference_divider * dividers.post_div * 16384;
+	do_div(tmp, reference_clock);
+	fbdiv = (u32) tmp;
+
+	spll_func_cntl &= ~(SPLL_PDIV_A_MASK | SPLL_REF_DIV_MASK);
+	spll_func_cntl |= SPLL_REF_DIV(dividers.ref_div);
+	spll_func_cntl |= SPLL_PDIV_A(dividers.post_div);
+
+	spll_func_cntl_2 &= ~SCLK_MUX_SEL_MASK;
+	spll_func_cntl_2 |= SCLK_MUX_SEL(2);
+
+	spll_func_cntl_3 &= ~SPLL_FB_DIV_MASK;
+	spll_func_cntl_3 |= SPLL_FB_DIV(fbdiv);
+	spll_func_cntl_3 |= SPLL_DITHEN;
+
+	if (pi->sclk_ss) {
+		struct radeon_atom_ss ss;
+		u32 vco_freq = engine_clock * dividers.post_div;
+
+		if (radeon_atombios_get_asic_ss_info(rdev, &ss,
+						     ASIC_INTERNAL_ENGINE_SS, vco_freq)) {
+			u32 clk_s = reference_clock * 5 / (reference_divider * ss.rate);
+			u32 clk_v = 4 * ss.percentage * fbdiv / (clk_s * 10000);
+
+			cg_spll_spread_spectrum &= ~CLK_S_MASK;
+			cg_spll_spread_spectrum |= CLK_S(clk_s);
+			cg_spll_spread_spectrum |= SSEN;
+
+			cg_spll_spread_spectrum_2 &= ~CLK_V_MASK;
+			cg_spll_spread_spectrum_2 |= CLK_V(clk_v);
+		}
+	}
+
+	sclk->sclk_value = cpu_to_be32(engine_clock);
+	sclk->vCG_SPLL_FUNC_CNTL = cpu_to_be32(spll_func_cntl);
+	sclk->vCG_SPLL_FUNC_CNTL_2 = cpu_to_be32(spll_func_cntl_2);
+	sclk->vCG_SPLL_FUNC_CNTL_3 = cpu_to_be32(spll_func_cntl_3);
+	sclk->vCG_SPLL_SPREAD_SPECTRUM = cpu_to_be32(cg_spll_spread_spectrum);
+	sclk->vCG_SPLL_SPREAD_SPECTRUM_2 = cpu_to_be32(cg_spll_spread_spectrum_2);
+
+	return 0;
+}
+
+int rv740_populate_mclk_value(struct radeon_device *rdev,
+			      u32 engine_clock, u32 memory_clock,
+			      RV7XX_SMC_MCLK_VALUE *mclk)
+{
+	struct rv7xx_power_info *pi = rv770_get_pi(rdev);
+	u32 mpll_ad_func_cntl = pi->clk_regs.rv770.mpll_ad_func_cntl;
+	u32 mpll_ad_func_cntl_2 = pi->clk_regs.rv770.mpll_ad_func_cntl_2;
+	u32 mpll_dq_func_cntl = pi->clk_regs.rv770.mpll_dq_func_cntl;
+	u32 mpll_dq_func_cntl_2 = pi->clk_regs.rv770.mpll_dq_func_cntl_2;
+	u32 mclk_pwrmgt_cntl = pi->clk_regs.rv770.mclk_pwrmgt_cntl;
+	u32 dll_cntl = pi->clk_regs.rv770.dll_cntl;
+	u32 mpll_ss1 = pi->clk_regs.rv770.mpll_ss1;
+	u32 mpll_ss2 = pi->clk_regs.rv770.mpll_ss2;
+	struct atom_clock_dividers dividers;
+	u32 ibias;
+	u32 dll_speed;
+	int ret;
+
+	ret = radeon_atom_get_clock_dividers(rdev, COMPUTE_MEMORY_PLL_PARAM,
+					     memory_clock, false, &dividers);
+	if (ret)
+		return ret;
+
+	ibias = rv770_map_clkf_to_ibias(rdev, dividers.whole_fb_div);
+
+	mpll_ad_func_cntl &= ~(CLKR_MASK |
+			       YCLK_POST_DIV_MASK |
+			       CLKF_MASK |
+			       CLKFRAC_MASK |
+			       IBIAS_MASK);
+	mpll_ad_func_cntl |= CLKR(dividers.ref_div);
+	mpll_ad_func_cntl |= YCLK_POST_DIV(dividers.post_div);
+	mpll_ad_func_cntl |= CLKF(dividers.whole_fb_div);
+	mpll_ad_func_cntl |= CLKFRAC(dividers.frac_fb_div);
+	mpll_ad_func_cntl |= IBIAS(ibias);
+
+	if (dividers.vco_mode)
+		mpll_ad_func_cntl_2 |= VCO_MODE;
+	else
+		mpll_ad_func_cntl_2 &= ~VCO_MODE;
+
+	if (pi->mem_gddr5) {
+		mpll_dq_func_cntl &= ~(CLKR_MASK |
+				       YCLK_POST_DIV_MASK |
+				       CLKF_MASK |
+				       CLKFRAC_MASK |
+				       IBIAS_MASK);
+		mpll_dq_func_cntl |= CLKR(dividers.ref_div);
+		mpll_dq_func_cntl |= YCLK_POST_DIV(dividers.post_div);
+		mpll_dq_func_cntl |= CLKF(dividers.whole_fb_div);
+		mpll_dq_func_cntl |= CLKFRAC(dividers.frac_fb_div);
+		mpll_dq_func_cntl |= IBIAS(ibias);
+
+		if (dividers.vco_mode)
+			mpll_dq_func_cntl_2 |= VCO_MODE;
+		else
+			mpll_dq_func_cntl_2 &= ~VCO_MODE;
+	}
+
+	if (pi->mclk_ss) {
+		struct radeon_atom_ss ss;
+		u32 vco_freq = memory_clock * dividers.post_div;
+
+		if (radeon_atombios_get_asic_ss_info(rdev, &ss,
+						     ASIC_INTERNAL_MEMORY_SS, vco_freq)) {
+			u32 reference_clock = rdev->clock.mpll.reference_freq;
+			u32 decoded_ref = rv740_get_decoded_reference_divider(dividers.ref_div);
+			u32 clk_s = reference_clock * 5 / (decoded_ref * ss.rate);
+			u32 clk_v = 0x40000 * ss.percentage *
+				(dividers.whole_fb_div + (dividers.frac_fb_div / 8)) / (clk_s * 10000);
+
+			mpll_ss1 &= ~CLKV_MASK;
+			mpll_ss1 |= CLKV(clk_v);
+
+			mpll_ss2 &= ~CLKS_MASK;
+			mpll_ss2 |= CLKS(clk_s);
+		}
+	}
+
+	dll_speed = rv740_get_dll_speed(pi->mem_gddr5,
+					memory_clock);
+
+	mclk_pwrmgt_cntl &= ~DLL_SPEED_MASK;
+	mclk_pwrmgt_cntl |= DLL_SPEED(dll_speed);
+
+	mclk->mclk770.mclk_value = cpu_to_be32(memory_clock);
+	mclk->mclk770.vMPLL_AD_FUNC_CNTL = cpu_to_be32(mpll_ad_func_cntl);
+	mclk->mclk770.vMPLL_AD_FUNC_CNTL_2 = cpu_to_be32(mpll_ad_func_cntl_2);
+	mclk->mclk770.vMPLL_DQ_FUNC_CNTL = cpu_to_be32(mpll_dq_func_cntl);
+	mclk->mclk770.vMPLL_DQ_FUNC_CNTL_2 = cpu_to_be32(mpll_dq_func_cntl_2);
+	mclk->mclk770.vMCLK_PWRMGT_CNTL = cpu_to_be32(mclk_pwrmgt_cntl);
+	mclk->mclk770.vDLL_CNTL = cpu_to_be32(dll_cntl);
+	mclk->mclk770.vMPLL_SS = cpu_to_be32(mpll_ss1);
+	mclk->mclk770.vMPLL_SS2 = cpu_to_be32(mpll_ss2);
+
+	return 0;
+}
+
+void rv740_read_clock_registers(struct radeon_device *rdev)
+{
+	struct rv7xx_power_info *pi = rv770_get_pi(rdev);
+
+	pi->clk_regs.rv770.cg_spll_func_cntl =
+		RREG32(CG_SPLL_FUNC_CNTL);
+	pi->clk_regs.rv770.cg_spll_func_cntl_2 =
+		RREG32(CG_SPLL_FUNC_CNTL_2);
+	pi->clk_regs.rv770.cg_spll_func_cntl_3 =
+		RREG32(CG_SPLL_FUNC_CNTL_3);
+	pi->clk_regs.rv770.cg_spll_spread_spectrum =
+		RREG32(CG_SPLL_SPREAD_SPECTRUM);
+	pi->clk_regs.rv770.cg_spll_spread_spectrum_2 =
+		RREG32(CG_SPLL_SPREAD_SPECTRUM_2);
+
+	pi->clk_regs.rv770.mpll_ad_func_cntl =
+		RREG32(MPLL_AD_FUNC_CNTL);
+	pi->clk_regs.rv770.mpll_ad_func_cntl_2 =
+		RREG32(MPLL_AD_FUNC_CNTL_2);
+	pi->clk_regs.rv770.mpll_dq_func_cntl =
+		RREG32(MPLL_DQ_FUNC_CNTL);
+	pi->clk_regs.rv770.mpll_dq_func_cntl_2 =
+		RREG32(MPLL_DQ_FUNC_CNTL_2);
+	pi->clk_regs.rv770.mclk_pwrmgt_cntl =
+		RREG32(MCLK_PWRMGT_CNTL);
+	pi->clk_regs.rv770.dll_cntl = RREG32(DLL_CNTL);
+	pi->clk_regs.rv770.mpll_ss1 = RREG32(MPLL_SS1);
+	pi->clk_regs.rv770.mpll_ss2 = RREG32(MPLL_SS2);
+}
+
+int rv740_populate_smc_acpi_state(struct radeon_device *rdev,
+				  RV770_SMC_STATETABLE *table)
+{
+	struct rv7xx_power_info *pi = rv770_get_pi(rdev);
+	u32 mpll_ad_func_cntl = pi->clk_regs.rv770.mpll_ad_func_cntl;
+	u32 mpll_ad_func_cntl_2 = pi->clk_regs.rv770.mpll_ad_func_cntl_2;
+	u32 mpll_dq_func_cntl = pi->clk_regs.rv770.mpll_dq_func_cntl;
+	u32 mpll_dq_func_cntl_2 = pi->clk_regs.rv770.mpll_dq_func_cntl_2;
+	u32 spll_func_cntl = pi->clk_regs.rv770.cg_spll_func_cntl;
+	u32 spll_func_cntl_2 = pi->clk_regs.rv770.cg_spll_func_cntl_2;
+	u32 spll_func_cntl_3 = pi->clk_regs.rv770.cg_spll_func_cntl_3;
+	u32 mclk_pwrmgt_cntl = pi->clk_regs.rv770.mclk_pwrmgt_cntl;
+	u32 dll_cntl = pi->clk_regs.rv770.dll_cntl;
+
+	table->ACPIState = table->initialState;
+
+	table->ACPIState.flags &= ~PPSMC_SWSTATE_FLAG_DC;
+
+	if (pi->acpi_vddc) {
+		rv770_populate_vddc_value(rdev, pi->acpi_vddc,
+					  &table->ACPIState.levels[0].vddc);
+		table->ACPIState.levels[0].gen2PCIE =
+			pi->pcie_gen2 ?
+			pi->acpi_pcie_gen2 : 0;
+		table->ACPIState.levels[0].gen2XSP =
+			pi->acpi_pcie_gen2;
+	} else {
+		rv770_populate_vddc_value(rdev, pi->min_vddc_in_table,
+					  &table->ACPIState.levels[0].vddc);
+		table->ACPIState.levels[0].gen2PCIE = 0;
+	}
+
+	mpll_ad_func_cntl_2 |= BIAS_GEN_PDNB | RESET_EN;
+
+	mpll_dq_func_cntl_2 |= BYPASS | BIAS_GEN_PDNB | RESET_EN;
+
+	mclk_pwrmgt_cntl |= (MRDCKA0_RESET |
+			     MRDCKA1_RESET |
+			     MRDCKB0_RESET |
+			     MRDCKB1_RESET |
+			     MRDCKC0_RESET |
+			     MRDCKC1_RESET |
+			     MRDCKD0_RESET |
+			     MRDCKD1_RESET);
+
+	dll_cntl |= (MRDCKA0_BYPASS |
+		     MRDCKA1_BYPASS |
+		     MRDCKB0_BYPASS |
+		     MRDCKB1_BYPASS |
+		     MRDCKC0_BYPASS |
+		     MRDCKC1_BYPASS |
+		     MRDCKD0_BYPASS |
+		     MRDCKD1_BYPASS);
+
+	spll_func_cntl |= SPLL_RESET | SPLL_SLEEP | SPLL_BYPASS_EN;
+
+	spll_func_cntl_2 &= ~SCLK_MUX_SEL_MASK;
+	spll_func_cntl_2 |= SCLK_MUX_SEL(4);
+
+	table->ACPIState.levels[0].mclk.mclk770.vMPLL_AD_FUNC_CNTL = cpu_to_be32(mpll_ad_func_cntl);
+	table->ACPIState.levels[0].mclk.mclk770.vMPLL_AD_FUNC_CNTL_2 = cpu_to_be32(mpll_ad_func_cntl_2);
+	table->ACPIState.levels[0].mclk.mclk770.vMPLL_DQ_FUNC_CNTL = cpu_to_be32(mpll_dq_func_cntl);
+	table->ACPIState.levels[0].mclk.mclk770.vMPLL_DQ_FUNC_CNTL_2 = cpu_to_be32(mpll_dq_func_cntl_2);
+	table->ACPIState.levels[0].mclk.mclk770.vMCLK_PWRMGT_CNTL = cpu_to_be32(mclk_pwrmgt_cntl);
+	table->ACPIState.levels[0].mclk.mclk770.vDLL_CNTL = cpu_to_be32(dll_cntl);
+
+	table->ACPIState.levels[0].mclk.mclk770.mclk_value = 0;
+
+	table->ACPIState.levels[0].sclk.vCG_SPLL_FUNC_CNTL = cpu_to_be32(spll_func_cntl);
+	table->ACPIState.levels[0].sclk.vCG_SPLL_FUNC_CNTL_2 = cpu_to_be32(spll_func_cntl_2);
+	table->ACPIState.levels[0].sclk.vCG_SPLL_FUNC_CNTL_3 = cpu_to_be32(spll_func_cntl_3);
+
+	table->ACPIState.levels[0].sclk.sclk_value = 0;
+
+	table->ACPIState.levels[1] = table->ACPIState.levels[0];
+	table->ACPIState.levels[2] = table->ACPIState.levels[0];
+
+	rv770_populate_mvdd_value(rdev, 0, &table->ACPIState.levels[0].mvdd);
+
+	return 0;
+}
+
+void rv740_enable_mclk_spread_spectrum(struct radeon_device *rdev,
+				       bool enable)
+{
+	if (enable)
+		WREG32_P(MPLL_CNTL_MODE, SS_SSEN, ~SS_SSEN);
+	else
+		WREG32_P(MPLL_CNTL_MODE, 0, ~SS_SSEN);
+}
+
+u8 rv740_get_mclk_frequency_ratio(u32 memory_clock)
+{
+	u8 mc_para_index;
+
+	if ((memory_clock < 10000) || (memory_clock > 47500))
+		mc_para_index = 0x00;
+	else
+		mc_para_index = (u8)((memory_clock - 10000) / 2500);
+
+	return mc_para_index;
+}

drivers/gpu/drm/radeon/rv740d.h

+/*
+ * 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.
+ *
+ */
+#ifndef RV740_H
+#define RV740_H
+
+#define	CG_SPLL_FUNC_CNTL				0x600
+#define		SPLL_RESET				(1 << 0)
+#define		SPLL_SLEEP				(1 << 1)
+#define		SPLL_BYPASS_EN				(1 << 3)
+#define		SPLL_REF_DIV(x)				((x) << 4)
+#define		SPLL_REF_DIV_MASK			(0x3f << 4)
+#define		SPLL_PDIV_A(x)				((x) << 20)
+#define		SPLL_PDIV_A_MASK			(0x7f << 20)
+#define	CG_SPLL_FUNC_CNTL_2				0x604
+#define		SCLK_MUX_SEL(x)				((x) << 0)
+#define		SCLK_MUX_SEL_MASK			(0x1ff << 0)
+#define	CG_SPLL_FUNC_CNTL_3				0x608
+#define		SPLL_FB_DIV(x)				((x) << 0)
+#define		SPLL_FB_DIV_MASK			(0x3ffffff << 0)
+#define		SPLL_DITHEN				(1 << 28)
+
+#define	MPLL_CNTL_MODE					0x61c
+#define		SS_SSEN					(1 << 24)
+
+#define	MPLL_AD_FUNC_CNTL				0x624
+#define		CLKF(x)					((x) << 0)
+#define		CLKF_MASK				(0x7f << 0)
+#define		CLKR(x)					((x) << 7)
+#define		CLKR_MASK				(0x1f << 7)
+#define		CLKFRAC(x)				((x) << 12)
+#define		CLKFRAC_MASK				(0x1f << 12)
+#define		YCLK_POST_DIV(x)			((x) << 17)
+#define		YCLK_POST_DIV_MASK			(3 << 17)
+#define		IBIAS(x)				((x) << 20)
+#define		IBIAS_MASK				(0x3ff << 20)
+#define		RESET					(1 << 30)
+#define		PDNB					(1 << 31)
+#define	MPLL_AD_FUNC_CNTL_2				0x628
+#define		BYPASS					(1 << 19)
+#define		BIAS_GEN_PDNB				(1 << 24)
+#define		RESET_EN				(1 << 25)
+#define		VCO_MODE				(1 << 29)
+#define	MPLL_DQ_FUNC_CNTL				0x62c
+#define	MPLL_DQ_FUNC_CNTL_2				0x630
+
+#define	MCLK_PWRMGT_CNTL				0x648
+#define		DLL_SPEED(x)				((x) << 0)
+#define		DLL_SPEED_MASK				(0x1f << 0)
+#       define MPLL_PWRMGT_OFF                          (1 << 5)
+#       define DLL_READY                                (1 << 6)
+#       define MC_INT_CNTL                              (1 << 7)
+#       define MRDCKA0_SLEEP                            (1 << 8)
+#       define MRDCKA1_SLEEP                            (1 << 9)
+#       define MRDCKB0_SLEEP                            (1 << 10)
+#       define MRDCKB1_SLEEP                            (1 << 11)
+#       define MRDCKC0_SLEEP                            (1 << 12)
+#       define MRDCKC1_SLEEP                            (1 << 13)
+#       define MRDCKD0_SLEEP                            (1 << 14)
+#       define MRDCKD1_SLEEP                            (1 << 15)
+#       define MRDCKA0_RESET                            (1 << 16)
+#       define MRDCKA1_RESET                            (1 << 17)
+#       define MRDCKB0_RESET                            (1 << 18)
+#       define MRDCKB1_RESET                            (1 << 19)
+#       define MRDCKC0_RESET                            (1 << 20)
+#       define MRDCKC1_RESET                            (1 << 21)
+#       define MRDCKD0_RESET                            (1 << 22)
+#       define MRDCKD1_RESET                            (1 << 23)
+#       define DLL_READY_READ                           (1 << 24)
+#       define USE_DISPLAY_GAP                          (1 << 25)
+#       define USE_DISPLAY_URGENT_NORMAL                (1 << 26)
+#       define MPLL_TURNOFF_D2                          (1 << 28)
+#define	DLL_CNTL					0x64c
+#       define MRDCKA0_BYPASS                           (1 << 24)
+#       define MRDCKA1_BYPASS                           (1 << 25)
+#       define MRDCKB0_BYPASS                           (1 << 26)
+#       define MRDCKB1_BYPASS                           (1 << 27)
+#       define MRDCKC0_BYPASS                           (1 << 28)
+#       define MRDCKC1_BYPASS                           (1 << 29)
+#       define MRDCKD0_BYPASS                           (1 << 30)
+#       define MRDCKD1_BYPASS                           (1 << 31)
+
+#define	CG_SPLL_SPREAD_SPECTRUM				0x790
+#define		SSEN					(1 << 0)
+#define		CLK_S(x)				((x) << 4)
+#define		CLK_S_MASK				(0xfff << 4)
+#define	CG_SPLL_SPREAD_SPECTRUM_2			0x794
+#define		CLK_V(x)				((x) << 0)
+#define		CLK_V_MASK				(0x3ffffff << 0)
+
+#define	MPLL_SS1					0x85c
+#define		CLKV(x)					((x) << 0)
+#define		CLKV_MASK				(0x3ffffff << 0)
+#define	MPLL_SS2					0x860
+#define		CLKS(x)					((x) << 0)
+#define		CLKS_MASK				(0xfff << 0)
+
+#endif

drivers/gpu/drm/radeon/rv770_dpm.h

+/*
+ * 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.
+ *
+ */
+#ifndef __RV770_DPM_H__
+#define __RV770_DPM_H__
+
+#include "rv770_smc.h"
+
+struct rv770_clock_registers {
+	u32 cg_spll_func_cntl;
+	u32 cg_spll_func_cntl_2;
+	u32 cg_spll_func_cntl_3;
+	u32 cg_spll_spread_spectrum;
+	u32 cg_spll_spread_spectrum_2;
+	u32 mpll_ad_func_cntl;
+	u32 mpll_ad_func_cntl_2;
+	u32 mpll_dq_func_cntl;
+	u32 mpll_dq_func_cntl_2;
+	u32 mclk_pwrmgt_cntl;
+	u32 dll_cntl;
+	u32 mpll_ss1;
+	u32 mpll_ss2;
+};
+
+struct rv730_clock_registers {
+	u32 cg_spll_func_cntl;
+	u32 cg_spll_func_cntl_2;
+	u32 cg_spll_func_cntl_3;
+	u32 cg_spll_spread_spectrum;
+	u32 cg_spll_spread_spectrum_2;
+	u32 mclk_pwrmgt_cntl;
+	u32 dll_cntl;
+	u32 mpll_func_cntl;
+	u32 mpll_func_cntl2;
+	u32 mpll_func_cntl3;
+	u32 mpll_ss;
+	u32 mpll_ss2;
+};
+
+union r7xx_clock_registers {
+	struct rv770_clock_registers rv770;
+	struct rv730_clock_registers rv730;
+};
+
+struct vddc_table_entry {
+	u16 vddc;
+	u8 vddc_index;
+	u8 high_smio;
+	u32 low_smio;
+};
+
+#define MAX_NO_OF_MVDD_VALUES 2
+#define MAX_NO_VREG_STEPS 32
+
+struct rv7xx_power_info {
+	/* flags */
+	bool mem_gddr5;
+	bool pcie_gen2;
+	bool dynamic_pcie_gen2;
+	bool acpi_pcie_gen2;
+	bool boot_in_gen2;
+	bool voltage_control; /* vddc */
+	bool mvdd_control;
+	bool sclk_ss;
+	bool mclk_ss;
+	bool dynamic_ss;
+	bool gfx_clock_gating;
+	bool mg_clock_gating;
+	bool mgcgtssm;
+	bool power_gating;
+	bool thermal_protection;
+	bool display_gap;
+	bool dcodt;
+	bool ulps;
+	/* registers */
+	union r7xx_clock_registers clk_regs;
+	u32 s0_vid_lower_smio_cntl;
+	/* voltage */
+	u32 vddc_mask_low;
+	u32 mvdd_mask_low;
+	u32 mvdd_split_frequency;
+	u32 mvdd_low_smio[MAX_NO_OF_MVDD_VALUES];
+	u16 max_vddc;
+	u16 max_vddc_in_table;
+	u16 min_vddc_in_table;
+	struct vddc_table_entry vddc_table[MAX_NO_VREG_STEPS];
+	u8 valid_vddc_entries;
+	/* dc odt */
+	u32 mclk_odt_threshold;
+	u8 odt_value_0[2];
+	u8 odt_value_1[2];
+	/* stored values */
+	u32 boot_sclk;
+	u16 acpi_vddc;
+	u32 ref_div;
+	u32 active_auto_throttle_sources;
+	u32 mclk_stutter_mode_threshold;
+	u32 mclk_strobe_mode_threshold;
+	u32 mclk_edc_enable_threshold;
+	u32 bsp;
+	u32 bsu;
+	u32 pbsp;
+	u32 pbsu;
+	u32 dsp;
+	u32 psp;
+	u32 asi;
+	u32 pasi;
+	u32 vrc;
+	u32 restricted_levels;
+	/* smc offsets */
+	u16 state_table_start;
+	u16 soft_regs_start;
+	u16 sram_end;
+	/* scratch structs */
+	RV770_SMC_STATETABLE smc_statetable;
+};
+
+struct rv7xx_pl {
+	u32 sclk;
+	u32 mclk;
+	u16 vddc;
+	u16 vddci; /* eg+ only */
+	u32 flags;
+};
+
+struct rv7xx_ps {
+	struct rv7xx_pl high;
+	struct rv7xx_pl medium;
+	struct rv7xx_pl low;
+	bool dc_compatible;
+};
+
+#define RV770_RLP_DFLT                                10
+#define RV770_RMP_DFLT                                25
+#define RV770_LHP_DFLT                                25
+#define RV770_LMP_DFLT                                10
+#define RV770_VRC_DFLT                                0x003f
+#define RV770_ASI_DFLT                                1000
+#define RV770_HASI_DFLT                               200000
+#define RV770_MGCGTTLOCAL0_DFLT                       0x00100000
+#define RV7XX_MGCGTTLOCAL0_DFLT                       0
+#define RV770_MGCGTTLOCAL1_DFLT                       0xFFFF0000
+#define RV770_MGCGCGTSSMCTRL_DFLT                     0x55940000
+
+#define MVDD_LOW_INDEX  0
+#define MVDD_HIGH_INDEX 1
+
+#define MVDD_LOW_VALUE  0
+#define MVDD_HIGH_VALUE 0xffff
+
+#define RV770_DEFAULT_VCLK_FREQ  53300 /* 10 khz */
+#define RV770_DEFAULT_DCLK_FREQ  40000 /* 10 khz */
+
+/* rv730/rv710 */
+int rv730_populate_sclk_value(struct radeon_device *rdev,
+			      u32 engine_clock,
+			      RV770_SMC_SCLK_VALUE *sclk);
+int rv730_populate_mclk_value(struct radeon_device *rdev,
+			      u32 engine_clock, u32 memory_clock,
+			      LPRV7XX_SMC_MCLK_VALUE mclk);
+void rv730_read_clock_registers(struct radeon_device *rdev);
+int rv730_populate_smc_acpi_state(struct radeon_device *rdev,
+				  RV770_SMC_STATETABLE *table);
+int rv730_populate_smc_initial_state(struct radeon_device *rdev,
+				     struct radeon_ps *radeon_initial_state,
+				     RV770_SMC_STATETABLE *table);
+void rv730_program_memory_timing_parameters(struct radeon_device *rdev,
+					    struct radeon_ps *radeon_state);
+void rv730_power_gating_enable(struct radeon_device *rdev,
+			       bool enable);
+void rv730_start_dpm(struct radeon_device *rdev);
+void rv730_stop_dpm(struct radeon_device *rdev);
+void rv730_program_dcodt(struct radeon_device *rdev, bool use_dcodt);
+void rv730_get_odt_values(struct radeon_device *rdev);
+
+/* rv740 */
+int rv740_populate_sclk_value(struct radeon_device *rdev, u32 engine_clock,
+			      RV770_SMC_SCLK_VALUE *sclk);
+int rv740_populate_mclk_value(struct radeon_device *rdev,
+			      u32 engine_clock, u32 memory_clock,
+			      RV7XX_SMC_MCLK_VALUE *mclk);
+void rv740_read_clock_registers(struct radeon_device *rdev);
+int rv740_populate_smc_acpi_state(struct radeon_device *rdev,
+				  RV770_SMC_STATETABLE *table);
+void rv740_enable_mclk_spread_spectrum(struct radeon_device *rdev,
+				       bool enable);
+u8 rv740_get_mclk_frequency_ratio(u32 memory_clock);
+u32 rv740_get_dll_speed(bool is_gddr5, u32 memory_clock);
+u32 rv740_get_decoded_reference_divider(u32 encoded_ref);
+
+/* rv770 */
+u32 rv770_map_clkf_to_ibias(struct radeon_device *rdev, u32 clkf);
+int rv770_populate_vddc_value(struct radeon_device *rdev, u16 vddc,
+			      RV770_SMC_VOLTAGE_VALUE *voltage);
+int rv770_populate_mvdd_value(struct radeon_device *rdev, u32 mclk,
+			      RV770_SMC_VOLTAGE_VALUE *voltage);
+u8 rv770_get_seq_value(struct radeon_device *rdev,
+		       struct rv7xx_pl *pl);
+int rv770_populate_initial_mvdd_value(struct radeon_device *rdev,
+				      RV770_SMC_VOLTAGE_VALUE *voltage);
+u32 rv770_calculate_memory_refresh_rate(struct radeon_device *rdev,
+					u32 engine_clock);
+void rv770_program_response_times(struct radeon_device *rdev);
+int rv770_populate_smc_sp(struct radeon_device *rdev,
+			  struct radeon_ps *radeon_state,
+			  RV770_SMC_SWSTATE *smc_state);
+int rv770_populate_smc_t(struct radeon_device *rdev,
+			 struct radeon_ps *radeon_state,
+			 RV770_SMC_SWSTATE *smc_state);
+void rv770_read_voltage_smio_registers(struct radeon_device *rdev);
+void rv770_get_memory_type(struct radeon_device *rdev);
+void r7xx_start_smc(struct radeon_device *rdev);
+u8 rv770_get_memory_module_index(struct radeon_device *rdev);
+void rv770_get_max_vddc(struct radeon_device *rdev);
+void rv770_get_pcie_gen2_status(struct radeon_device *rdev);
+void rv770_enable_acpi_pm(struct radeon_device *rdev);
+void rv770_restore_cgcg(struct radeon_device *rdev);
+bool rv770_dpm_enabled(struct radeon_device *rdev);
+void rv770_enable_voltage_control(struct radeon_device *rdev,
+				  bool enable);
+void rv770_enable_backbias(struct radeon_device *rdev,
+			   bool enable);
+void rv770_enable_thermal_protection(struct radeon_device *rdev,
+				     bool enable);
+void rv770_enable_auto_throttle_source(struct radeon_device *rdev,
+				       enum radeon_dpm_auto_throttle_src source,
+				       bool enable);
+void rv770_setup_bsp(struct radeon_device *rdev);
+void rv770_program_git(struct radeon_device *rdev);
+void rv770_program_tp(struct radeon_device *rdev);
+void rv770_program_tpp(struct radeon_device *rdev);
+void rv770_program_sstp(struct radeon_device *rdev);
+void rv770_program_engine_speed_parameters(struct radeon_device *rdev);
+void rv770_program_vc(struct radeon_device *rdev);
+void rv770_clear_vc(struct radeon_device *rdev);
+int rv770_upload_firmware(struct radeon_device *rdev);
+void rv770_stop_dpm(struct radeon_device *rdev);
+void r7xx_stop_smc(struct radeon_device *rdev);
+void rv770_reset_smio_status(struct radeon_device *rdev);
+int rv770_restrict_performance_levels_before_switch(struct radeon_device *rdev);
+int rv770_unrestrict_performance_levels_after_switch(struct radeon_device *rdev);
+int rv770_halt_smc(struct radeon_device *rdev);
+int rv770_resume_smc(struct radeon_device *rdev);
+int rv770_set_sw_state(struct radeon_device *rdev);
+int rv770_set_boot_state(struct radeon_device *rdev);
+int rv7xx_parse_power_table(struct radeon_device *rdev);
+
+/* smc */
+int rv770_read_smc_soft_register(struct radeon_device *rdev,
+				 u16 reg_offset, u32 *value);
+int rv770_write_smc_soft_register(struct radeon_device *rdev,
+				  u16 reg_offset, u32 value);
+
+#endif

drivers/gpu/drm/radeon/rv770_smc.c

+/*
+ * 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 <linux/firmware.h>
+#include "drmP.h"
+#include "radeon.h"
+#include "rv770d.h"
+#include "rv770_dpm.h"
+#include "rv770_smc.h"
+#include "atom.h"
+#include "radeon_ucode.h"
+
+#define FIRST_SMC_INT_VECT_REG 0xFFD8
+#define FIRST_INT_VECT_S19     0xFFC0
+
+static const u8 rv770_smc_int_vectors[] =
+{
+	0x08, 0x10, 0x08, 0x10,
+	0x08, 0x10, 0x08, 0x10,
+	0x08, 0x10, 0x08, 0x10,
+	0x08, 0x10, 0x08, 0x10,
+	0x08, 0x10, 0x08, 0x10,
+	0x08, 0x10, 0x08, 0x10,
+	0x08, 0x10, 0x08, 0x10,
+	0x08, 0x10, 0x08, 0x10,
+	0x08, 0x10, 0x08, 0x10,
+	0x08, 0x10, 0x08, 0x10,
+	0x08, 0x10, 0x08, 0x10,
+	0x08, 0x10, 0x08, 0x10,
+	0x08, 0x10, 0x0C, 0xD7,
+	0x08, 0x2B, 0x08, 0x10,
+	0x03, 0x51, 0x03, 0x51,
+	0x03, 0x51, 0x03, 0x51
+};
+
+static const u8 rv730_smc_int_vectors[] =
+{
+	0x08, 0x15, 0x08, 0x15,
+	0x08, 0x15, 0x08, 0x15,
+	0x08, 0x15, 0x08, 0x15,
+	0x08, 0x15, 0x08, 0x15,
+	0x08, 0x15, 0x08, 0x15,
+	0x08, 0x15, 0x08, 0x15,
+	0x08, 0x15, 0x08, 0x15,
+	0x08, 0x15, 0x08, 0x15,
+	0x08, 0x15, 0x08, 0x15,
+	0x08, 0x15, 0x08, 0x15,
+	0x08, 0x15, 0x08, 0x15,
+	0x08, 0x15, 0x08, 0x15,
+	0x08, 0x15, 0x0C, 0xBB,
+	0x08, 0x30, 0x08, 0x15,
+	0x03, 0x56, 0x03, 0x56,
+	0x03, 0x56, 0x03, 0x56
+};
+
+static const u8 rv710_smc_int_vectors[] =
+{
+	0x08, 0x04, 0x08, 0x04,
+	0x08, 0x04, 0x08, 0x04,
+	0x08, 0x04, 0x08, 0x04,
+	0x08, 0x04, 0x08, 0x04,
+	0x08, 0x04, 0x08, 0x04,
+	0x08, 0x04, 0x08, 0x04,
+	0x08, 0x04, 0x08, 0x04,
+	0x08, 0x04, 0x08, 0x04,
+	0x08, 0x04, 0x08, 0x04,
+	0x08, 0x04, 0x08, 0x04,
+	0x08, 0x04, 0x08, 0x04,
+	0x08, 0x04, 0x08, 0x04,
+	0x08, 0x04, 0x0C, 0xCB,
+	0x08, 0x1F, 0x08, 0x04,
+	0x03, 0x51, 0x03, 0x51,
+	0x03, 0x51, 0x03, 0x51
+};
+
+static const u8 rv740_smc_int_vectors[] =
+{
+	0x08, 0x10, 0x08, 0x10,
+	0x08, 0x10, 0x08, 0x10,
+	0x08, 0x10, 0x08, 0x10,
+	0x08, 0x10, 0x08, 0x10,
+	0x08, 0x10, 0x08, 0x10,
+	0x08, 0x10, 0x08, 0x10,
+	0x08, 0x10, 0x08, 0x10,
+	0x08, 0x10, 0x08, 0x10,
+	0x08, 0x10, 0x08, 0x10,
+	0x08, 0x10, 0x08, 0x10,
+	0x08, 0x10, 0x08, 0x10,
+	0x08, 0x10, 0x08, 0x10,
+	0x08, 0x10, 0x0C, 0xD7,
+	0x08, 0x2B, 0x08, 0x10,
+	0x03, 0x51, 0x03, 0x51,
+	0x03, 0x51, 0x03, 0x51
+};
+
+int rv770_set_smc_sram_address(struct radeon_device *rdev,
+			       u16 smc_address, u16 limit)
+{
+	u32 addr;
+
+	if (smc_address & 3)
+		return -EINVAL;
+	if ((smc_address + 3) > limit)
+		return -EINVAL;
+
+	addr = smc_address;
+	addr |= SMC_SRAM_AUTO_INC_DIS;
+
+	WREG32(SMC_SRAM_ADDR, addr);
+
+	return 0;
+}
+
+int rv770_copy_bytes_to_smc(struct radeon_device *rdev,
+			    u16 smc_start_address, const u8 *src,
+			    u16 byte_count, u16 limit)
+{
+	u32 data, original_data, extra_shift;
+	u16 addr;
+	int ret;
+
+	if (smc_start_address & 3)
+		return -EINVAL;
+	if ((smc_start_address + byte_count) > limit)
+		return -EINVAL;
+
+	addr = smc_start_address;
+
+	while (byte_count >= 4) {
+		/* SMC address space is BE */
+		data = (src[0] << 24) | (src[1] << 16) | (src[2] << 8) | src[3];
+
+		ret = rv770_set_smc_sram_address(rdev, addr, limit);
+		if (ret)
+			return ret;
+
+		WREG32(SMC_SRAM_DATA, data);
+
+		src += 4;
+		byte_count -= 4;
+		addr += 4;
+	}
+
+	/* RMW for final bytes */
+	if (byte_count > 0) {
+		data = 0;
+
+		ret = rv770_set_smc_sram_address(rdev, addr, limit);
+		if (ret)
+			return ret;
+
+		original_data = RREG32(SMC_SRAM_DATA);
+
+		extra_shift = 8 * (4 - byte_count);
+
+		while (byte_count > 0) {
+			/* SMC address space is BE */
+			data = (data << 8) + *src++;
+			byte_count--;
+		}
+
+		data <<= extra_shift;
+
+		data |= (original_data & ~((~0UL) << extra_shift));
+
+		ret = rv770_set_smc_sram_address(rdev, addr, limit);
+		if (ret)
+			return ret;
+
+		WREG32(SMC_SRAM_DATA, data);
+	}
+
+	return 0;
+}
+
+static int rv770_program_interrupt_vectors(struct radeon_device *rdev,
+					   u32 smc_first_vector, const u8 *src,
+					   u32 byte_count)
+{
+	u32 tmp, i;
+
+	if (byte_count % 4)
+		return -EINVAL;
+
+	if (smc_first_vector < FIRST_SMC_INT_VECT_REG) {
+		tmp = FIRST_SMC_INT_VECT_REG - smc_first_vector;
+
+		if (tmp > byte_count)
+			return 0;
+
+		byte_count -= tmp;
+		src += tmp;
+		smc_first_vector = FIRST_SMC_INT_VECT_REG;
+	}
+
+	for (i = 0; i < byte_count; i += 4) {
+		/* SMC address space is BE */
+		tmp = (src[i] << 24) | (src[i + 1] << 16) | (src[i + 2] << 8) | src[i + 3];
+
+		WREG32(SMC_ISR_FFD8_FFDB + i, tmp);
+	}
+
+	return 0;
+}
+
+void rv770_start_smc(struct radeon_device *rdev)
+{
+	WREG32_P(SMC_IO, SMC_RST_N, ~SMC_RST_N);
+}
+
+void rv770_reset_smc(struct radeon_device *rdev)
+{
+	WREG32_P(SMC_IO, 0, ~SMC_RST_N);
+}
+
+void rv770_stop_smc_clock(struct radeon_device *rdev)
+{
+	WREG32_P(SMC_IO, 0, ~SMC_CLK_EN);
+}
+
+void rv770_start_smc_clock(struct radeon_device *rdev)
+{
+	WREG32_P(SMC_IO, SMC_CLK_EN, ~SMC_CLK_EN);
+}
+
+bool rv770_is_smc_running(struct radeon_device *rdev)
+{
+	u32 tmp;
+
+	tmp = RREG32(SMC_IO);
+
+	if ((tmp & SMC_RST_N) && (tmp & SMC_CLK_EN))
+		return true;
+	else
+		return false;
+}
+
+PPSMC_Result rv770_send_msg_to_smc(struct radeon_device *rdev, PPSMC_Msg msg)
+{
+	u32 tmp;
+	int i;
+	PPSMC_Result result;
+
+	if (!rv770_is_smc_running(rdev))
+		return PPSMC_Result_Failed;
+
+	WREG32_P(SMC_MSG, HOST_SMC_MSG(msg), ~HOST_SMC_MSG_MASK);
+
+	for (i = 0; i < rdev->usec_timeout; i++) {
+		tmp = RREG32(SMC_MSG) & HOST_SMC_RESP_MASK;
+		tmp >>= HOST_SMC_RESP_SHIFT;
+		if (tmp != 0)
+			break;
+		udelay(1);
+	}
+
+	tmp = RREG32(SMC_MSG) & HOST_SMC_RESP_MASK;
+	tmp >>= HOST_SMC_RESP_SHIFT;
+
+	result = (PPSMC_Result)tmp;
+	return result;
+}
+
+PPSMC_Result rv770_wait_for_smc_inactive(struct radeon_device *rdev)
+{
+	int i;
+	PPSMC_Result result = PPSMC_Result_OK;
+
+	if (!rv770_is_smc_running(rdev))
+		return result;
+
+	for (i = 0; i < rdev->usec_timeout; i++) {
+		if (RREG32(SMC_IO) & SMC_STOP_MODE)
+			break;
+		udelay(1);
+	}
+
+	return result;
+}
+
+static void rv770_clear_smc_sram(struct radeon_device *rdev, u16 limit)
+{
+	u16 i;
+
+	for (i = 0;  i < limit; i += 4) {
+		rv770_set_smc_sram_address(rdev, i, limit);
+		WREG32(SMC_SRAM_DATA, 0);
+	}
+}
+
+int rv770_load_smc_ucode(struct radeon_device *rdev,
+			 u16 limit)
+{
+	int ret;
+	const u8 *int_vect;
+	u16 int_vect_start_address;
+	u16 int_vect_size;
+	const u8 *ucode_data;
+	u16 ucode_start_address;
+	u16 ucode_size;
+
+	if (!rdev->smc_fw)
+		return -EINVAL;
+
+	rv770_clear_smc_sram(rdev, limit);
+
+	switch (rdev->family) {
+	case CHIP_RV770:
+		ucode_start_address = RV770_SMC_UCODE_START;
+		ucode_size = RV770_SMC_UCODE_SIZE;
+		int_vect = (const u8 *)&rv770_smc_int_vectors;
+		int_vect_start_address = RV770_SMC_INT_VECTOR_START;
+		int_vect_size = RV770_SMC_INT_VECTOR_SIZE;
+		break;
+	case CHIP_RV730:
+		ucode_start_address = RV730_SMC_UCODE_START;
+		ucode_size = RV730_SMC_UCODE_SIZE;
+		int_vect = (const u8 *)&rv730_smc_int_vectors;
+		int_vect_start_address = RV730_SMC_INT_VECTOR_START;
+		int_vect_size = RV730_SMC_INT_VECTOR_SIZE;
+		break;
+	case CHIP_RV710:
+		ucode_start_address = RV710_SMC_UCODE_START;
+		ucode_size = RV710_SMC_UCODE_SIZE;
+		int_vect = (const u8 *)&rv710_smc_int_vectors;
+		int_vect_start_address = RV710_SMC_INT_VECTOR_START;
+		int_vect_size = RV710_SMC_INT_VECTOR_SIZE;
+		break;
+	case CHIP_RV740:
+		ucode_start_address = RV740_SMC_UCODE_START;
+		ucode_size = RV740_SMC_UCODE_SIZE;
+		int_vect = (const u8 *)&rv740_smc_int_vectors;
+		int_vect_start_address = RV740_SMC_INT_VECTOR_START;
+		int_vect_size = RV740_SMC_INT_VECTOR_SIZE;
+		break;
+	default:
+		DRM_ERROR("unknown asic in smc ucode loader\n");
+		BUG();
+	}
+
+	/* load the ucode */
+	ucode_data = (const u8 *)rdev->smc_fw->data;
+	ret = rv770_copy_bytes_to_smc(rdev, ucode_start_address,
+				      ucode_data, ucode_size, limit);
+	if (ret)
+		return ret;
+
+	/* set up the int vectors */
+	ret = rv770_program_interrupt_vectors(rdev, int_vect_start_address,
+					      int_vect, int_vect_size);
+	if (ret)
+		return ret;
+
+	return 0;
+}
+
+int rv770_read_smc_sram_dword(struct radeon_device *rdev,
+			      u16 smc_address, u32 *value, u16 limit)
+{
+	int ret;
+
+	ret = rv770_set_smc_sram_address(rdev, smc_address, limit);
+	if (ret)
+		return ret;
+
+	*value = RREG32(SMC_SRAM_DATA);
+
+	return 0;
+}
+
+int rv770_write_smc_sram_dword(struct radeon_device *rdev,
+			       u16 smc_address, u32 value, u16 limit)
+{
+	int ret;
+
+	ret = rv770_set_smc_sram_address(rdev, smc_address, limit);
+	if (ret)
+		return ret;
+
+	WREG32(SMC_SRAM_DATA, value);
+
+	return 0;
+}

drivers/gpu/drm/radeon/rv770_smc.h

+/*
+ * 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.
+ *
+ */
+#ifndef __RV770_SMC_H__
+#define __RV770_SMC_H__
+
+#include "ppsmc.h"
+
+#pragma pack(push, 1)
+
+#define RV770_SMC_TABLE_ADDRESS 0xB000
+
+#define RV770_SMC_PERFORMANCE_LEVELS_PER_SWSTATE    3
+
+struct RV770_SMC_SCLK_VALUE
+{
+    uint32_t        vCG_SPLL_FUNC_CNTL;
+    uint32_t        vCG_SPLL_FUNC_CNTL_2;
+    uint32_t        vCG_SPLL_FUNC_CNTL_3;
+    uint32_t        vCG_SPLL_SPREAD_SPECTRUM;
+    uint32_t        vCG_SPLL_SPREAD_SPECTRUM_2;
+    uint32_t        sclk_value;
+};
+
+typedef struct RV770_SMC_SCLK_VALUE RV770_SMC_SCLK_VALUE;
+
+struct RV770_SMC_MCLK_VALUE
+{
+    uint32_t        vMPLL_AD_FUNC_CNTL;
+    uint32_t        vMPLL_AD_FUNC_CNTL_2;
+    uint32_t        vMPLL_DQ_FUNC_CNTL;
+    uint32_t        vMPLL_DQ_FUNC_CNTL_2;
+    uint32_t        vMCLK_PWRMGT_CNTL;
+    uint32_t        vDLL_CNTL;
+    uint32_t        vMPLL_SS;
+    uint32_t        vMPLL_SS2;
+    uint32_t        mclk_value;
+};
+
+typedef struct RV770_SMC_MCLK_VALUE RV770_SMC_MCLK_VALUE;
+
+
+struct RV730_SMC_MCLK_VALUE
+{
+    uint32_t        vMCLK_PWRMGT_CNTL;
+    uint32_t        vDLL_CNTL;
+    uint32_t        vMPLL_FUNC_CNTL;
+    uint32_t        vMPLL_FUNC_CNTL2;
+    uint32_t        vMPLL_FUNC_CNTL3;
+    uint32_t        vMPLL_SS;
+    uint32_t        vMPLL_SS2;
+    uint32_t        mclk_value;
+};
+
+typedef struct RV730_SMC_MCLK_VALUE RV730_SMC_MCLK_VALUE;
+
+struct RV770_SMC_VOLTAGE_VALUE
+{
+    uint16_t             value;
+    uint8_t              index;
+    uint8_t              padding;
+};
+
+typedef struct RV770_SMC_VOLTAGE_VALUE RV770_SMC_VOLTAGE_VALUE;
+
+union RV7XX_SMC_MCLK_VALUE
+{
+    RV770_SMC_MCLK_VALUE    mclk770;
+    RV730_SMC_MCLK_VALUE    mclk730;
+};
+
+typedef union RV7XX_SMC_MCLK_VALUE RV7XX_SMC_MCLK_VALUE, *LPRV7XX_SMC_MCLK_VALUE;
+
+struct RV770_SMC_HW_PERFORMANCE_LEVEL
+{
+    uint8_t                 arbValue;
+    union{
+        uint8_t             seqValue;
+        uint8_t             ACIndex;
+    };
+    uint8_t                 displayWatermark;
+    uint8_t                 gen2PCIE;
+    uint8_t                 gen2XSP;
+    uint8_t                 backbias;
+    uint8_t                 strobeMode;
+    uint8_t                 mcFlags;
+    uint32_t                aT;
+    uint32_t                bSP;
+    RV770_SMC_SCLK_VALUE    sclk;
+    RV7XX_SMC_MCLK_VALUE    mclk;
+    RV770_SMC_VOLTAGE_VALUE vddc;
+    RV770_SMC_VOLTAGE_VALUE mvdd;
+    RV770_SMC_VOLTAGE_VALUE vddci;
+    uint8_t                 reserved1;
+    uint8_t                 reserved2;
+    uint8_t                 stateFlags;
+    uint8_t                 padding;
+};
+
+#define SMC_STROBE_RATIO    0x0F
+#define SMC_STROBE_ENABLE   0x10
+
+#define SMC_MC_EDC_RD_FLAG  0x01
+#define SMC_MC_EDC_WR_FLAG  0x02
+#define SMC_MC_RTT_ENABLE   0x04
+#define SMC_MC_STUTTER_EN   0x08
+
+typedef struct RV770_SMC_HW_PERFORMANCE_LEVEL RV770_SMC_HW_PERFORMANCE_LEVEL;
+
+struct RV770_SMC_SWSTATE
+{
+    uint8_t           flags;
+    uint8_t           padding1;
+    uint8_t           padding2;
+    uint8_t           padding3;
+    RV770_SMC_HW_PERFORMANCE_LEVEL levels[RV770_SMC_PERFORMANCE_LEVELS_PER_SWSTATE];
+};
+
+typedef struct RV770_SMC_SWSTATE RV770_SMC_SWSTATE;
+
+#define RV770_SMC_VOLTAGEMASK_VDDC 0
+#define RV770_SMC_VOLTAGEMASK_MVDD 1
+#define RV770_SMC_VOLTAGEMASK_VDDCI 2
+#define RV770_SMC_VOLTAGEMASK_MAX  4
+
+struct RV770_SMC_VOLTAGEMASKTABLE
+{
+    uint8_t  highMask[RV770_SMC_VOLTAGEMASK_MAX];
+    uint32_t lowMask[RV770_SMC_VOLTAGEMASK_MAX];
+};
+
+typedef struct RV770_SMC_VOLTAGEMASKTABLE RV770_SMC_VOLTAGEMASKTABLE;
+
+#define MAX_NO_VREG_STEPS 32
+
+struct RV770_SMC_STATETABLE
+{
+    uint8_t             thermalProtectType;
+    uint8_t             systemFlags;
+    uint8_t             maxVDDCIndexInPPTable;
+    uint8_t             extraFlags;
+    uint8_t             highSMIO[MAX_NO_VREG_STEPS];
+    uint32_t            lowSMIO[MAX_NO_VREG_STEPS];
+    RV770_SMC_VOLTAGEMASKTABLE voltageMaskTable;
+    RV770_SMC_SWSTATE   initialState;
+    RV770_SMC_SWSTATE   ACPIState;
+    RV770_SMC_SWSTATE   driverState;
+    RV770_SMC_SWSTATE   ULVState;
+};
+
+typedef struct RV770_SMC_STATETABLE RV770_SMC_STATETABLE;
+
+#define PPSMC_STATEFLAG_AUTO_PULSE_SKIP 0x01
+
+#pragma pack(pop)
+
+#define RV770_SMC_SOFT_REGISTERS_START        0x104
+
+#define RV770_SMC_SOFT_REGISTER_mclk_chg_timeout        0x0
+#define RV770_SMC_SOFT_REGISTER_baby_step_timer         0x8
+#define RV770_SMC_SOFT_REGISTER_delay_bbias             0xC
+#define RV770_SMC_SOFT_REGISTER_delay_vreg              0x10
+#define RV770_SMC_SOFT_REGISTER_delay_acpi              0x2C
+#define RV770_SMC_SOFT_REGISTER_seq_index               0x64
+#define RV770_SMC_SOFT_REGISTER_mvdd_chg_time           0x68
+#define RV770_SMC_SOFT_REGISTER_mclk_switch_lim         0x78
+#define RV770_SMC_SOFT_REGISTER_mc_block_delay          0x90
+#define RV770_SMC_SOFT_REGISTER_is_asic_lombok          0xA0
+
+int rv770_set_smc_sram_address(struct radeon_device *rdev,
+			       u16 smc_address, u16 limit);
+int rv770_copy_bytes_to_smc(struct radeon_device *rdev,
+			    u16 smc_start_address, const u8 *src,
+			    u16 byte_count, u16 limit);
+void rv770_start_smc(struct radeon_device *rdev);
+void rv770_reset_smc(struct radeon_device *rdev);
+void rv770_stop_smc_clock(struct radeon_device *rdev);
+void rv770_start_smc_clock(struct radeon_device *rdev);
+bool rv770_is_smc_running(struct radeon_device *rdev);
+PPSMC_Result rv770_send_msg_to_smc(struct radeon_device *rdev, PPSMC_Msg msg);
+PPSMC_Result rv770_wait_for_smc_inactive(struct radeon_device *rdev);
+int rv770_read_smc_sram_dword(struct radeon_device *rdev,
+			      u16 smc_address, u32 *value, u16 limit);
+int rv770_write_smc_sram_dword(struct radeon_device *rdev,
+			       u16 smc_address, u32 value, u16 limit);
+int rv770_load_smc_ucode(struct radeon_device *rdev,
+			 u16 limit);
+
+#endif