drm/radeon/dpm: add debugfs support for TN
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 6d4304c..6916547 100644
--- a/drivers/gpu/drm/radeon/radeon_asic.c
+++ b/drivers/gpu/drm/radeon/radeon_asic.c
@@ -2108,6 +2108,7 @@
.get_sclk = &trinity_dpm_get_sclk,
.get_mclk = &trinity_dpm_get_mclk,
.print_power_state = &trinity_dpm_print_power_state,
+ .debugfs_print_current_performance_level = &trinity_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 958d30f..5904d89 100644
--- a/drivers/gpu/drm/radeon/radeon_asic.h
+++ b/drivers/gpu/drm/radeon/radeon_asic.h
@@ -626,6 +626,8 @@
u32 trinity_dpm_get_mclk(struct radeon_device *rdev, bool low);
void trinity_dpm_print_power_state(struct radeon_device *rdev,
struct radeon_ps *ps);
+void trinity_dpm_debugfs_print_current_performance_level(struct radeon_device *rdev,
+ struct seq_file *m);
/* DCE6 - SI */
void dce6_bandwidth_update(struct radeon_device *rdev);
diff --git a/drivers/gpu/drm/radeon/trinity_dpm.c b/drivers/gpu/drm/radeon/trinity_dpm.c
index fce825e..502d915 100644
--- a/drivers/gpu/drm/radeon/trinity_dpm.c
+++ b/drivers/gpu/drm/radeon/trinity_dpm.c
@@ -1855,6 +1855,27 @@
r600_dpm_print_ps_status(rdev, rps);
}
+void trinity_dpm_debugfs_print_current_performance_level(struct radeon_device *rdev,
+ struct seq_file *m)
+{
+ struct radeon_ps *rps = rdev->pm.dpm.current_ps;
+ struct trinity_ps *ps = trinity_get_ps(rps);
+ struct trinity_pl *pl;
+ u32 current_index =
+ (RREG32(TARGET_AND_CURRENT_PROFILE_INDEX) & CURRENT_STATE_MASK) >>
+ CURRENT_STATE_SHIFT;
+
+ 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,
+ trinity_convert_voltage_index_to_value(rdev, pl->vddc_index));
+ }
+}
+
void trinity_dpm_fini(struct radeon_device *rdev)
{
int i;