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Commit 242916a5 authored by Alex Deucher's avatar Alex Deucher
Browse files

drm/radeon/dpm: add debugfs support for rv6xx 



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

Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 1316b792

drivers/gpu/drm/radeon/radeon_asic.c

+1 −0
Original line number Diff line number Diff line
@@ -1160,6 +1160,7 @@ static struct radeon_asic rv6xx_asic = { 
		.get_sclk = &rv6xx_dpm_get_sclk,

		.get_mclk = &rv6xx_dpm_get_mclk,

		.print_power_state = &rv6xx_dpm_print_power_state,

		.debugfs_print_current_performance_level = &rv6xx_dpm_debugfs_print_current_performance_level,

	},

	.pflip = {

		.pre_page_flip = &rs600_pre_page_flip,

drivers/gpu/drm/radeon/radeon_asic.h

+2 −0
Original line number Diff line number Diff line
@@ -416,6 +416,8 @@ u32 rv6xx_dpm_get_sclk(struct radeon_device *rdev, bool low); 
u32 rv6xx_dpm_get_mclk(struct radeon_device *rdev, bool low);

void rv6xx_dpm_print_power_state(struct radeon_device *rdev,

				 struct radeon_ps *ps);

void rv6xx_dpm_debugfs_print_current_performance_level(struct radeon_device *rdev,

						       struct seq_file *m);

/* rs780 dpm */

int rs780_dpm_init(struct radeon_device *rdev);

int rs780_dpm_enable(struct radeon_device *rdev);

drivers/gpu/drm/radeon/rv6xx_dpm.c

+25 −0
Original line number Diff line number Diff line
@@ -2027,6 +2027,31 @@ void rv6xx_dpm_print_power_state(struct radeon_device *rdev, 
	r600_dpm_print_ps_status(rdev, rps);

}



void rv6xx_dpm_debugfs_print_current_performance_level(struct radeon_device *rdev,

						       struct seq_file *m)

{

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

	struct rv6xx_ps *ps = rv6xx_get_ps(rps);

	struct rv6xx_pl *pl;

	u32 current_index =

		(RREG32(TARGET_AND_CURRENT_PROFILE_INDEX) & CURRENT_PROFILE_INDEX_MASK) >>

		CURRENT_PROFILE_INDEX_SHIFT;



	if (current_index > 2) {

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

	} else {

		if (current_index == 0)

			pl = &ps->low;

		else if (current_index == 1)

			pl = &ps->medium;

		else /* current_index == 2 */

			pl = &ps->high;

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

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

			   current_index, pl->sclk, pl->mclk, pl->vddc);

	}

}



void rv6xx_dpm_fini(struct radeon_device *rdev)

{

	int i;