drm/radeon/rv6xx: implement get_current_sclk/mclk

[cascardo/linux.git] / drivers / gpu / drm / radeon / rv6xx_dpm.c

diff --git a/drivers/gpu/drm/radeon/rv6xx_dpm.c b/drivers/gpu/drm/radeon/rv6xx_dpm.c
index 6a5c233..97e5a6f 100644 (file)
--- a/drivers/gpu/drm/radeon/rv6xx_dpm.c
+++ b/drivers/gpu/drm/radeon/rv6xx_dpm.c
@@ -2050,6 +2050,52 @@ void rv6xx_dpm_debugfs_print_current_performance_level(struct radeon_device *rde
        }
 }
 
+/* get the current sclk in 10 khz units */
+u32 rv6xx_dpm_get_current_sclk(struct radeon_device *rdev)
+{
+       struct radeon_ps *rps = rdev->pm.dpm.current_ps;
+       struct rv6xx_ps *ps = rv6xx_get_ps(rps);
+       struct rv6xx_pl *pl;
+       u32 current_index =
+               (RREG32(TARGET_AND_CURRENT_PROFILE_INDEX) & CURRENT_PROFILE_INDEX_MASK) >>
+               CURRENT_PROFILE_INDEX_SHIFT;
+
+       if (current_index > 2) {
+               return 0;
+       } else {
+               if (current_index == 0)
+                       pl = &ps->low;
+               else if (current_index == 1)
+                       pl = &ps->medium;
+               else /* current_index == 2 */
+                       pl = &ps->high;
+               return pl->sclk;
+       }
+}
+
+/* get the current mclk in 10 khz units */
+u32 rv6xx_dpm_get_current_mclk(struct radeon_device *rdev)
+{
+       struct radeon_ps *rps = rdev->pm.dpm.current_ps;
+       struct rv6xx_ps *ps = rv6xx_get_ps(rps);
+       struct rv6xx_pl *pl;
+       u32 current_index =
+               (RREG32(TARGET_AND_CURRENT_PROFILE_INDEX) & CURRENT_PROFILE_INDEX_MASK) >>
+               CURRENT_PROFILE_INDEX_SHIFT;
+
+       if (current_index > 2) {
+               return 0;
+       } else {
+               if (current_index == 0)
+                       pl = &ps->low;
+               else if (current_index == 1)
+                       pl = &ps->medium;
+               else /* current_index == 2 */
+                       pl = &ps->high;
+               return pl->mclk;
+       }
+}
+
 void rv6xx_dpm_fini(struct radeon_device *rdev)
 {
        int i;