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Commit bd210d11 authored by Alex Deucher's avatar Alex Deucher
Browse files

drm/radeon/dpm: add debugfs support for 7xx/evergreen/btc 



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

Signed-off-by: default avatarAlex Deucher <alexander.deucher@amd.com>
parent 242916a5

drivers/gpu/drm/radeon/radeon_asic.c

+3 −0
Original line number Diff line number Diff line
@@ -1392,6 +1392,7 @@ static struct radeon_asic rv770_asic = { 
		.get_sclk = &rv770_dpm_get_sclk,

		.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,

	},

	.pflip = {

		.pre_page_flip = &rs600_pre_page_flip,
@@ -1514,6 +1515,7 @@ static struct radeon_asic evergreen_asic = { 
		.get_sclk = &rv770_dpm_get_sclk,

		.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,

	},

	.pflip = {

		.pre_page_flip = &evergreen_pre_page_flip,
@@ -1758,6 +1760,7 @@ static struct radeon_asic btc_asic = { 
		.get_sclk = &btc_dpm_get_sclk,

		.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,

	},

	.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
@@ -476,6 +476,8 @@ 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);

void rv770_dpm_debugfs_print_current_performance_level(struct radeon_device *rdev,

						       struct seq_file *m);



/*

 * evergreen

drivers/gpu/drm/radeon/rv770_dpm.c

+30 −0
Original line number Diff line number Diff line
@@ -2430,6 +2430,36 @@ void rv770_dpm_print_power_state(struct radeon_device *rdev, 
	r600_dpm_print_ps_status(rdev, rps);

}



void rv770_dpm_debugfs_print_current_performance_level(struct radeon_device *rdev,

						       struct seq_file *m)

{

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

	struct rv7xx_ps *ps = rv770_get_ps(rps);

	struct rv7xx_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);

		if (rdev->family >= CHIP_CEDAR) {

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

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

		} else {

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

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

		}

	}

}



void rv770_dpm_fini(struct radeon_device *rdev)

{

	int i;

drivers/gpu/drm/radeon/rv770d.h

+4 −0
Original line number Diff line number Diff line
@@ -207,6 +207,10 @@ 
#       define MUX_TCLK_TO_XCLK                           (1 << 8)

#       define XTALIN_DIVIDE                              (1 << 9)



#define TARGET_AND_CURRENT_PROFILE_INDEX                  0x66c

#       define CURRENT_PROFILE_INDEX_MASK                 (0xf << 4)

#       define CURRENT_PROFILE_INDEX_SHIFT                4



#define S0_VID_LOWER_SMIO_CNTL                            0x678

#define S1_VID_LOWER_SMIO_CNTL                            0x67c

#define S2_VID_LOWER_SMIO_CNTL                            0x680