drm/radeon/dpm: add debugfs support for CI

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/cikd.h b/drivers/gpu/drm/radeon/cikd.h
index 861fb3e..9716ffc 100644
--- a/drivers/gpu/drm/radeon/cikd.h
+++ b/drivers/gpu/drm/radeon/cikd.h
@@ -110,6 +110,14 @@
 #       define RESET_SCLK_CNT                             (1 << 5)
 #       define DYNAMIC_PM_EN                              (1 << 21)
 
+#define TARGET_AND_CURRENT_PROFILE_INDEX                  0xC0200014
+#       define CURRENT_STATE_MASK                         (0xf << 4)
+#       define CURRENT_STATE_SHIFT                        4
+#       define CURR_MCLK_INDEX_MASK                       (0xf << 8)
+#       define CURR_MCLK_INDEX_SHIFT                      8
+#       define CURR_SCLK_INDEX_MASK                       (0x1f << 16)
+#       define CURR_SCLK_INDEX_SHIFT                      16
+
 #define CG_SSP                                            0xC0200044
 #       define SST(x)                                     ((x) << 0)
 #       define SST_MASK                                   (0xffff << 0)
@@ -126,6 +134,10 @@
 #       define DISP_GAP_MCHG(x)                           ((x) << 24)
 #       define DISP_GAP_MCHG_MASK                         (3 << 24)
 
+#define TARGET_AND_CURRENT_PROFILE_INDEX_1                0xC02000F0
+#       define CURR_PCIE_INDEX_MASK                       (0xf << 24)
+#       define CURR_PCIE_INDEX_SHIFT                      24
+
 #define CG_ULV_PARAMETER                                  0xC0200158
 
 #define CG_FTV_0                                          0xC02001A8