Commit 0e4ed1c1 authored by Alex Deucher's avatar Alex Deucher
Browse files

drm/radeon/dpm: add thermal dpm support for CI 



Not currently used.

Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent e03cea36

drivers/gpu/drm/radeon/ci_dpm.c

+27 −0
Original line number Diff line number Diff line
@@ -714,6 +714,25 @@ static int ci_enable_smc_cac(struct radeon_device *rdev, bool enable) 
	return ret;

}



static int ci_enable_thermal_based_sclk_dpm(struct radeon_device *rdev,

					    bool enable)

{

	struct ci_power_info *pi = ci_get_pi(rdev);

	PPSMC_Result smc_result = PPSMC_Result_OK;



	if (pi->thermal_sclk_dpm_enabled) {

		if (enable)

			smc_result = ci_send_msg_to_smc(rdev, PPSMC_MSG_ENABLE_THERMAL_DPM);

		else

			smc_result = ci_send_msg_to_smc(rdev, PPSMC_MSG_DISABLE_THERMAL_DPM);

	}



	if (smc_result == PPSMC_Result_OK)

		return 0;

	else

		return -EINVAL;

}



static int ci_power_control_set_level(struct radeon_device *rdev)

{

	struct ci_power_info *pi = ci_get_pi(rdev);
@@ -5177,6 +5196,12 @@ int ci_dpm_enable(struct radeon_device *rdev) 


	ci_enable_auto_throttle_source(rdev, RADEON_DPM_AUTO_THROTTLE_SRC_THERMAL, true);



	ret = ci_enable_thermal_based_sclk_dpm(rdev, true);

	if (ret) {

		DRM_ERROR("ci_enable_thermal_based_sclk_dpm failed\n");

		return ret;

	}



	ci_thermal_start_thermal_controller(rdev);



	ci_update_current_ps(rdev, boot_ps);
@@ -5240,6 +5265,7 @@ void ci_dpm_disable(struct radeon_device *rdev) 
	ci_reset_to_default(rdev);

	ci_dpm_stop_smc(rdev);

	ci_force_switch_to_arb_f0(rdev);

	ci_enable_thermal_based_sclk_dpm(rdev, false);



	ci_update_current_ps(rdev, boot_ps);

}
@@ -5639,6 +5665,7 @@ int ci_dpm_init(struct radeon_device *rdev) 
	pi->sclk_dpm_key_disabled = 0;

	pi->mclk_dpm_key_disabled = 0;

	pi->pcie_dpm_key_disabled = 0;

	pi->thermal_sclk_dpm_enabled = 0;



	/* mclk dpm is unstable on some R7 260X cards with the old mc ucode */

	if ((rdev->pdev->device == 0x6658) &&

drivers/gpu/drm/radeon/ci_dpm.h

+1 −0
Original line number Diff line number Diff line
@@ -239,6 +239,7 @@ struct ci_power_info { 
	u32 sclk_dpm_key_disabled;

	u32 mclk_dpm_key_disabled;

	u32 pcie_dpm_key_disabled;

	u32 thermal_sclk_dpm_enabled;

	struct ci_pcie_perf_range pcie_gen_performance;

	struct ci_pcie_perf_range pcie_lane_performance;

	struct ci_pcie_perf_range pcie_gen_powersaving;

drivers/gpu/drm/radeon/ppsmc.h

+3 −0
Original line number Diff line number Diff line
@@ -162,6 +162,9 @@ typedef uint8_t PPSMC_Result; 
#define PPSMC_MSG_Remove_DC_Clamp             ((uint16_t) 0x191)

#define PPSMC_MSG_SetFanPwmMax                ((uint16_t) 0x19A)



#define PPSMC_MSG_ENABLE_THERMAL_DPM          ((uint16_t) 0x19C)

#define PPSMC_MSG_DISABLE_THERMAL_DPM         ((uint16_t) 0x19D)



#define PPSMC_MSG_API_GetSclkFrequency        ((uint16_t) 0x200)

#define PPSMC_MSG_API_GetMclkFrequency        ((uint16_t) 0x201)