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>
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 @@
.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_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 @@
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;