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Commit fb70160c authored by Alex Deucher's avatar Alex Deucher
Browse files

drm/radeon/dpm: add debugfs support for ON/LN 



This allows you to look at the current DPM state via
debugfs.

Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent bd210d11

drivers/gpu/drm/radeon/radeon_asic.c

+1 −0
Original line number Diff line number Diff line
@@ -1638,6 +1638,7 @@ static struct radeon_asic sumo_asic = { 
		.get_sclk = &sumo_dpm_get_sclk,

		.get_mclk = &sumo_dpm_get_mclk,

		.print_power_state = &sumo_dpm_print_power_state,

		.debugfs_print_current_performance_level = &sumo_dpm_debugfs_print_current_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
@@ -565,6 +565,8 @@ u32 sumo_dpm_get_sclk(struct radeon_device *rdev, bool low); 
u32 sumo_dpm_get_mclk(struct radeon_device *rdev, bool low);

void sumo_dpm_print_power_state(struct radeon_device *rdev,

				struct radeon_ps *ps);

void sumo_dpm_debugfs_print_current_performance_level(struct radeon_device *rdev,

						      struct seq_file *m);



/*

 * cayman

drivers/gpu/drm/radeon/sumo_dpm.c

+28 −0
Original line number Diff line number Diff line
@@ -1752,6 +1752,34 @@ void sumo_dpm_print_power_state(struct radeon_device *rdev, 
	r600_dpm_print_ps_status(rdev, rps);

}



void sumo_dpm_debugfs_print_current_performance_level(struct radeon_device *rdev,

						      struct seq_file *m)

{

	struct sumo_power_info *pi = sumo_get_pi(rdev);

	struct radeon_ps *rps = rdev->pm.dpm.current_ps;

	struct sumo_ps *ps = sumo_get_ps(rps);

	struct sumo_pl *pl;

	u32 current_index =

		(RREG32(TARGET_AND_CURRENT_PROFILE_INDEX) & CURR_INDEX_MASK) >>

		CURR_INDEX_SHIFT;



	if (current_index == BOOST_DPM_LEVEL) {

		pl = &pi->boost_pl;

		seq_printf(m, "uvd    vclk: %d dclk: %d\n", rps->vclk, rps->dclk);

		seq_printf(m, "power level %d    sclk: %u vddc: %u\n",

			   current_index, pl->sclk,

			   sumo_convert_voltage_index_to_value(rdev, pl->vddc_index));

	} else if (current_index >= ps->num_levels) {

		seq_printf(m, "invalid dpm profile %d\n", current_index);

	} else {

		pl = &ps->levels[current_index];

		seq_printf(m, "uvd    vclk: %d dclk: %d\n", rps->vclk, rps->dclk);

		seq_printf(m, "power level %d    sclk: %u vddc: %u\n",

			   current_index, pl->sclk,

			   sumo_convert_voltage_index_to_value(rdev, pl->vddc_index));

	}

}



void sumo_dpm_fini(struct radeon_device *rdev)

{

	int i;