From fb70160c5f2ae1b0648801f39138b25990f7ae18 Mon Sep 17 00:00:00 2001 From: Alex Deucher Date: Fri, 28 Jun 2013 10:47:56 -0400 Subject: [PATCH] drm/radeon/dpm: add debugfs support for ON/LN This allows you to look at the current DPM state via debugfs. Signed-off-by: Alex Deucher --- drivers/gpu/drm/radeon/radeon_asic.c | 1 + drivers/gpu/drm/radeon/radeon_asic.h | 2 ++ drivers/gpu/drm/radeon/sumo_dpm.c | 28 ++++++++++++++++++++++++++++ 3 files changed, 31 insertions(+) diff --git a/drivers/gpu/drm/radeon/radeon_asic.c b/drivers/gpu/drm/radeon/radeon_asic.c index a2a34f8..6d4304c 100644 --- a/drivers/gpu/drm/radeon/radeon_asic.c +++ b/drivers/gpu/drm/radeon/radeon_asic.c @@ -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, diff --git a/drivers/gpu/drm/radeon/radeon_asic.h b/drivers/gpu/drm/radeon/radeon_asic.h index 39f5d96..958d30f 100644 --- a/drivers/gpu/drm/radeon/radeon_asic.h +++ b/drivers/gpu/drm/radeon/radeon_asic.h @@ -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 diff --git a/drivers/gpu/drm/radeon/sumo_dpm.c b/drivers/gpu/drm/radeon/sumo_dpm.c index 0c3d752..68fefb9 100644 --- a/drivers/gpu/drm/radeon/sumo_dpm.c +++ b/drivers/gpu/drm/radeon/sumo_dpm.c @@ -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; -- 2.7.4