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Commit 8b5e6b7f authored by Alex Deucher's avatar Alex Deucher
Browse files

drm/radeon/dpm: implement force performance levels for 7xx/eg/btc 



Allows you to limit the selected power levels via sysfs.

Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 70d01a5e

drivers/gpu/drm/radeon/btc_dpm.c

+2 −2
Original line number Diff line number Diff line
@@ -2326,9 +2326,9 @@ int btc_dpm_set_power_state(struct radeon_device *rdev) 
		return ret;

	}



	ret = rv770_unrestrict_performance_levels_after_switch(rdev);

	ret = rv770_dpm_force_performance_level(rdev, RADEON_DPM_FORCED_LEVEL_AUTO);

	if (ret) {

		DRM_ERROR("rv770_unrestrict_performance_levels_after_switch failed\n");

		DRM_ERROR("rv770_dpm_force_performance_level failed\n");

		return ret;

	}

drivers/gpu/drm/radeon/cypress_dpm.c

+2 −2
Original line number Diff line number Diff line
@@ -2014,9 +2014,9 @@ int cypress_dpm_set_power_state(struct radeon_device *rdev) 
	if (eg_pi->pcie_performance_request)

		cypress_notify_link_speed_change_after_state_change(rdev, new_ps, old_ps);



	ret = rv770_unrestrict_performance_levels_after_switch(rdev);

	ret = rv770_dpm_force_performance_level(rdev, RADEON_DPM_FORCED_LEVEL_AUTO);

	if (ret) {

		DRM_ERROR("rv770_unrestrict_performance_levels_after_switch failed\n");

		DRM_ERROR("rv770_dpm_force_performance_level failed\n");

		return ret;

	}

drivers/gpu/drm/radeon/ppsmc.h

+2 −0
Original line number Diff line number Diff line
@@ -71,6 +71,8 @@ typedef uint8_t PPSMC_Result; 
#define PPSMC_MSG_SwitchToSwState           ((uint8_t)0x20)

#define PPSMC_MSG_SwitchToInitialState      ((uint8_t)0x40)

#define PPSMC_MSG_NoForcedLevel             ((uint8_t)0x41)

#define PPSMC_MSG_ForceHigh                 ((uint8_t)0x42)

#define PPSMC_MSG_ForceMediumOrHigh         ((uint8_t)0x43)

#define PPSMC_MSG_SwitchToMinimumPower      ((uint8_t)0x51)

#define PPSMC_MSG_ResumeFromMinimumPower    ((uint8_t)0x52)

#define PPSMC_MSG_EnableCac                 ((uint8_t)0x53)

drivers/gpu/drm/radeon/radeon_asic.c

+3 −0
Original line number Diff line number Diff line
@@ -1393,6 +1393,7 @@ static struct radeon_asic rv770_asic = { 
		.get_mclk = &rv770_dpm_get_mclk,

		.print_power_state = &rv770_dpm_print_power_state,

		.debugfs_print_current_performance_level = &rv770_dpm_debugfs_print_current_performance_level,

		.force_performance_level = &rv770_dpm_force_performance_level,

	},

	.pflip = {

		.pre_page_flip = &rs600_pre_page_flip,
@@ -1516,6 +1517,7 @@ static struct radeon_asic evergreen_asic = { 
		.get_mclk = &rv770_dpm_get_mclk,

		.print_power_state = &rv770_dpm_print_power_state,

		.debugfs_print_current_performance_level = &rv770_dpm_debugfs_print_current_performance_level,

		.force_performance_level = &rv770_dpm_force_performance_level,

	},

	.pflip = {

		.pre_page_flip = &evergreen_pre_page_flip,
@@ -1762,6 +1764,7 @@ static struct radeon_asic btc_asic = { 
		.get_mclk = &btc_dpm_get_mclk,

		.print_power_state = &rv770_dpm_print_power_state,

		.debugfs_print_current_performance_level = &rv770_dpm_debugfs_print_current_performance_level,

		.force_performance_level = &rv770_dpm_force_performance_level,

	},

	.pflip = {

		.pre_page_flip = &evergreen_pre_page_flip,

drivers/gpu/drm/radeon/radeon_asic.h

+2 −0
Original line number Diff line number Diff line
@@ -478,6 +478,8 @@ void rv770_dpm_print_power_state(struct radeon_device *rdev, 
				 struct radeon_ps *ps);

void rv770_dpm_debugfs_print_current_performance_level(struct radeon_device *rdev,

						       struct seq_file *m);

int rv770_dpm_force_performance_level(struct radeon_device *rdev,

				      enum radeon_dpm_forced_level level);



/*

 * evergreen