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>

drivers/gpu/drm/radeon/ci_dpm.c

@@ -27,6 +27,7 @@
 #include "r600_dpm.h"
 #include "ci_dpm.h"
 #include "atom.h"
+#include <linux/seq_file.h>
 
 #define MC_CG_ARB_FREQ_F0           0x0a
 #define MC_CG_ARB_FREQ_F1           0x0b
@@ -4965,6 +4966,16 @@ int ci_dpm_init(struct radeon_device *rdev)
 	return 0;
 }
 
+void ci_dpm_debugfs_print_current_performance_level(struct radeon_device *rdev,
+						    struct seq_file *m)
+{
+	u32 sclk = ci_get_average_sclk_freq(rdev);
+	u32 mclk = ci_get_average_mclk_freq(rdev);
+
+	seq_printf(m, "power level avg    sclk: %u mclk: %u\n",
+		   sclk, mclk);
+}
+
 void ci_dpm_print_power_state(struct radeon_device *rdev,
 			      struct radeon_ps *rps)
 {

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

drivers/gpu/drm/radeon/radeon_asic.c

@@ -2467,6 +2467,7 @@ static struct radeon_asic ci_asic = {
 		.get_sclk = &ci_dpm_get_sclk,
 		.get_mclk = &ci_dpm_get_mclk,
 		.print_power_state = &ci_dpm_print_power_state,
+		.debugfs_print_current_performance_level = &ci_dpm_debugfs_print_current_performance_level,
 	},
 	.pflip = {
 		.pre_page_flip = &evergreen_pre_page_flip,

drivers/gpu/drm/radeon/radeon_asic.h

@@ -763,6 +763,8 @@ u32 ci_dpm_get_sclk(struct radeon_device *rdev, bool low);
 u32 ci_dpm_get_mclk(struct radeon_device *rdev, bool low);
 void ci_dpm_print_power_state(struct radeon_device *rdev,
 			      struct radeon_ps *ps);
+void ci_dpm_debugfs_print_current_performance_level(struct radeon_device *rdev,
+						    struct seq_file *m);
 
 int kv_dpm_init(struct radeon_device *rdev);
 int kv_dpm_enable(struct radeon_device *rdev);