drm/radeon/dpm: add debugfs support for cayman
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/ni_dpm.c b/drivers/gpu/drm/radeon/ni_dpm.c
index 4712851..8497ca6 100644
--- a/drivers/gpu/drm/radeon/ni_dpm.c
+++ b/drivers/gpu/drm/radeon/ni_dpm.c
@@ -4287,6 +4287,26 @@
r600_dpm_print_ps_status(rdev, rps);
}
+void ni_dpm_debugfs_print_current_performance_level(struct radeon_device *rdev,
+ struct seq_file *m)
+{
+ struct radeon_ps *rps = rdev->pm.dpm.current_ps;
+ struct ni_ps *ps = ni_get_ps(rps);
+ struct rv7xx_pl *pl;
+ u32 current_index =
+ (RREG32(TARGET_AND_CURRENT_PROFILE_INDEX) & CURRENT_STATE_INDEX_MASK) >>
+ CURRENT_STATE_INDEX_SHIFT;
+
+ if (current_index >= ps->performance_level_count) {
+ seq_printf(m, "invalid dpm profile %d\n", current_index);
+ } else {
+ pl = &ps->performance_levels[current_index];
+ seq_printf(m, "uvd vclk: %d dclk: %d\n", rps->vclk, rps->dclk);
+ 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);
+ }
+}
+
u32 ni_dpm_get_sclk(struct radeon_device *rdev, bool low)
{
struct evergreen_power_info *eg_pi = evergreen_get_pi(rdev);