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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 <alexander.deucher@amd.com>
hifive-unleashed-5.1
Alex Deucher 2013-06-28 10:47:56 -04:00
parent bd210d11cd
commit fb70160c5f
3 changed files with 31 additions and 0 deletions
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1
drivers/gpu/drm/radeon/radeon_asic.c
View File

@ -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,

2
drivers/gpu/drm/radeon/radeon_asic.h
View File

@ -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

28
drivers/gpu/drm/radeon/sumo_dpm.c
View File

@ -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;