drm/radeon/tn: implement get_current_sclk/mclk

Will be used for exposing current clocks via INFO ioctl.

Tested-by: Marek Olšák <marek.olsak@amd.com>
Signed-off-by: Alex Deucher <alexander.deucher@amd.com>

3 files changed, 29 insertions, 0 deletions

diff --git a/drivers/gpu/drm/radeon/radeon_asic.c b/drivers/gpu/drm/radeon/radeon_asic.c
index 2b72c4a77be6..ce0cbd5823e9 100644
--- a/drivers/gpu/drm/radeon/radeon_asic.c
+++ b/drivers/gpu/drm/radeon/radeon_asic.c
@@ -1833,6 +1833,8 @@ static struct radeon_asic trinity_asic = {
                 .debugfs_print_current_performance_level = &trinity_dpm_debugfs_print_current_performance_level,
                 .force_performance_level = &trinity_dpm_force_performance_level,
                 .enable_bapm = &trinity_dpm_enable_bapm,
+                .get_current_sclk = &trinity_dpm_get_current_sclk,
+                .get_current_mclk = &trinity_dpm_get_current_mclk,
         },
         .pflip = {
                 .page_flip = &evergreen_page_flip,
diff --git a/drivers/gpu/drm/radeon/radeon_asic.h b/drivers/gpu/drm/radeon/radeon_asic.h
index e2887eb4a4d5..bab229377264 100644
--- a/drivers/gpu/drm/radeon/radeon_asic.h
+++ b/drivers/gpu/drm/radeon/radeon_asic.h
@@ -686,6 +686,8 @@ void trinity_dpm_debugfs_print_current_performance_level(struct radeon_device *r
 int trinity_dpm_force_performance_level(struct radeon_device *rdev,
                                         enum radeon_dpm_forced_level level);
 void trinity_dpm_enable_bapm(struct radeon_device *rdev, bool enable);
+u32 trinity_dpm_get_current_sclk(struct radeon_device *rdev);
+u32 trinity_dpm_get_current_mclk(struct radeon_device *rdev);
 
 /* 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 38dacb7a3689..a5b02c575d77 100644
--- a/drivers/gpu/drm/radeon/trinity_dpm.c
+++ b/drivers/gpu/drm/radeon/trinity_dpm.c
@@ -1964,6 +1964,31 @@ void trinity_dpm_debugfs_print_current_performance_level(struct radeon_device *r
         }
 }
 
+u32 trinity_dpm_get_current_sclk(struct radeon_device *rdev)
+{
+        struct trinity_power_info *pi = trinity_get_pi(rdev);
+        struct radeon_ps *rps = &pi->current_rps;
+        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) {
+                return 0;
+        } else {
+                pl = &ps->levels[current_index];
+                return pl->sclk;
+        }
+}
+
+u32 trinity_dpm_get_current_mclk(struct radeon_device *rdev)
+{
+        struct trinity_power_info *pi = trinity_get_pi(rdev);
+
+        return pi->sys_info.bootup_uma_clk;
+}
+
 void trinity_dpm_fini(struct radeon_device *rdev)
 {
         int i;