drm/radeon/kms/pm: resurrect printing power states

debug only

agd5f: rebased

Signed-off-by: Rafał Miłecki <zajec5@gmail.com>
Signed-off-by: Alex Deucher <alexdeucher@gmail.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

1 files changed, 45 insertions, 0 deletions

diff --git a/drivers/gpu/drm/radeon/radeon_pm.c b/drivers/gpu/drm/radeon/radeon_pm.c
index 19fb3652c7bd..63f679a04b25 100644
--- a/drivers/gpu/drm/radeon/radeon_pm.c
+++ b/drivers/gpu/drm/radeon/radeon_pm.c
@@ -33,6 +33,14 @@
 #define RADEON_WAIT_VBLANK_TIMEOUT 200
 #define RADEON_WAIT_IDLE_TIMEOUT 200
 
+static const char *radeon_pm_state_type_name[5] = {
+        "Default",
+        "Powersave",
+        "Battery",
+        "Balanced",
+        "Performance",
+};
+
 static void radeon_dynpm_idle_work_handler(struct work_struct *work);
 static int radeon_debugfs_pm_init(struct radeon_device *rdev);
 static bool radeon_pm_in_vbl(struct radeon_device *rdev);
@@ -278,6 +286,42 @@ static void radeon_pm_set_clocks(struct radeon_device *rdev)
         mutex_unlock(&rdev->ddev->struct_mutex);
 }
 
+static void radeon_pm_print_states(struct radeon_device *rdev)
+{
+        int i, j;
+        struct radeon_power_state *power_state;
+        struct radeon_pm_clock_info *clock_info;
+
+        DRM_DEBUG("%d Power State(s)\n", rdev->pm.num_power_states);
+        for (i = 0; i < rdev->pm.num_power_states; i++) {
+                power_state = &rdev->pm.power_state[i];
+                DRM_DEBUG("State %d: %s\n", i,
+                        radeon_pm_state_type_name[power_state->type]);
+                if (i == rdev->pm.default_power_state_index)
+                        DRM_DEBUG("\tDefault");
+                if ((rdev->flags & RADEON_IS_PCIE) && !(rdev->flags & RADEON_IS_IGP))
+                        DRM_DEBUG("\t%d PCIE Lanes\n", power_state->pcie_lanes);
+                if (power_state->flags & RADEON_PM_STATE_SINGLE_DISPLAY_ONLY)
+                        DRM_DEBUG("\tSingle display only\n");
+                DRM_DEBUG("\t%d Clock Mode(s)\n", power_state->num_clock_modes);
+                for (j = 0; j < power_state->num_clock_modes; j++) {
+                        clock_info = &(power_state->clock_info[j]);
+                        if (rdev->flags & RADEON_IS_IGP)
+                                DRM_DEBUG("\t\t%d e: %d%s\n",
+                                        j,
+                                        clock_info->sclk * 10,
+                                        clock_info->flags & RADEON_PM_MODE_NO_DISPLAY ? "\tNo display only" : "");
+                        else
+                                DRM_DEBUG("\t\t%d e: %d\tm: %d\tv: %d%s\n",
+                                        j,
+                                        clock_info->sclk * 10,
+                                        clock_info->mclk * 10,
+                                        clock_info->voltage.voltage,
+                                        clock_info->flags & RADEON_PM_MODE_NO_DISPLAY ? "\tNo display only" : "");
+                }
+        }
+}
+
 static ssize_t radeon_get_pm_profile(struct device *dev,
                                      struct device_attribute *attr,
                                      char *buf)
@@ -410,6 +454,7 @@ int radeon_pm_init(struct radeon_device *rdev)
                         radeon_atombios_get_power_modes(rdev);
                 else
                         radeon_combios_get_power_modes(rdev);
+                radeon_pm_print_states(rdev);
                 radeon_pm_init_profile(rdev);
         }