diff --git a/drivers/gpu/drm/i915/display/intel_display_power_well.c b/drivers/gpu/drm/i915/display/intel_display_power_well.c
index 751e49b880d6..b9b4359751cc 100644
--- a/drivers/gpu/drm/i915/display/intel_display_power_well.c
+++ b/drivers/gpu/drm/i915/display/intel_display_power_well.c
@@ -749,8 +749,9 @@ void gen9_sanitize_dc_state(struct intel_display *display)
 void gen9_set_dc_state(struct intel_display *display, u32 state)
 {
 	struct i915_power_domains *power_domains = &display->power.domains;
-	u32 val;
+	bool dc6_was_enabled, enable_dc6;
 	u32 mask;
+	u32 val;
 
 	if (!HAS_DISPLAY(display))
 		return;
@@ -769,11 +770,19 @@ void gen9_set_dc_state(struct intel_display *display, u32 state)
 		drm_err(display->drm, "DC state mismatch (0x%x -> 0x%x)\n",
 			power_domains->dc_state, val & mask);
 
+	enable_dc6 = state & DC_STATE_EN_UPTO_DC6;
+	dc6_was_enabled = val & DC_STATE_EN_UPTO_DC6;
+	if (!dc6_was_enabled && enable_dc6)
+		intel_dmc_update_dc6_allowed_count(display, true);
+
 	val &= ~mask;
 	val |= state;
 
 	gen9_write_dc_state(display, val);
 
+	if (!enable_dc6 && dc6_was_enabled)
+		intel_dmc_update_dc6_allowed_count(display, false);
+
 	power_domains->dc_state = val & mask;
 }
 
diff --git a/drivers/gpu/drm/i915/display/intel_dmc.c b/drivers/gpu/drm/i915/display/intel_dmc.c
index eb6b47ba0870..98f80a6c63e8 100644
--- a/drivers/gpu/drm/i915/display/intel_dmc.c
+++ b/drivers/gpu/drm/i915/display/intel_dmc.c
@@ -29,6 +29,7 @@
 #include "i915_reg.h"
 #include "intel_de.h"
 #include "intel_display_rpm.h"
+#include "intel_display_power_well.h"
 #include "intel_dmc.h"
 #include "intel_dmc_regs.h"
 #include "intel_step.h"
@@ -58,6 +59,10 @@ struct intel_dmc {
 	const char *fw_path;
 	u32 max_fw_size; /* bytes */
 	u32 version;
+	struct {
+		u32 dc5_start;
+		u32 count;
+	} dc6_allowed;
 	struct dmc_fw_info {
 		u32 mmio_count;
 		i915_reg_t mmioaddr[20];
@@ -1233,6 +1238,44 @@ void intel_dmc_snapshot_print(const struct intel_dmc_snapshot *snapshot, struct
 			   DMC_VERSION_MINOR(snapshot->version));
 }
 
+void intel_dmc_update_dc6_allowed_count(struct intel_display *display,
+					bool start_tracking)
+{
+	struct intel_dmc *dmc = display_to_dmc(display);
+	u32 dc5_cur_count;
+
+	if (DISPLAY_VER(dmc->display) < 14)
+		return;
+
+	dc5_cur_count = intel_de_read(dmc->display, DG1_DMC_DEBUG_DC5_COUNT);
+
+	if (!start_tracking)
+		dmc->dc6_allowed.count += dc5_cur_count - dmc->dc6_allowed.dc5_start;
+
+	dmc->dc6_allowed.dc5_start = dc5_cur_count;
+}
+
+static bool intel_dmc_get_dc6_allowed_count(struct intel_display *display, u32 *count)
+{
+	struct i915_power_domains *power_domains = &display->power.domains;
+	struct intel_dmc *dmc = display_to_dmc(display);
+	bool dc6_enabled;
+
+	if (DISPLAY_VER(display) < 14)
+		return false;
+
+	mutex_lock(&power_domains->lock);
+	dc6_enabled = intel_de_read(display, DC_STATE_EN) &
+		      DC_STATE_EN_UPTO_DC6;
+	if (dc6_enabled)
+		intel_dmc_update_dc6_allowed_count(display, false);
+
+	*count = dmc->dc6_allowed.count;
+	mutex_unlock(&power_domains->lock);
+
+	return true;
+}
+
 static int intel_dmc_debugfs_status_show(struct seq_file *m, void *unused)
 {
 	struct intel_display *display = m->private;
@@ -1240,6 +1283,7 @@ static int intel_dmc_debugfs_status_show(struct seq_file *m, void *unused)
 	struct intel_dmc *dmc = display_to_dmc(display);
 	struct ref_tracker *wakeref;
 	i915_reg_t dc5_reg, dc6_reg = INVALID_MMIO_REG;
+	u32 dc6_allowed_count;
 
 	if (!HAS_DMC(display))
 		return -ENODEV;
@@ -1288,7 +1332,11 @@ static int intel_dmc_debugfs_status_show(struct seq_file *m, void *unused)
 	}
 
 	seq_printf(m, "DC3 -> DC5 count: %d\n", intel_de_read(display, dc5_reg));
-	if (i915_mmio_reg_valid(dc6_reg))
+
+	if (intel_dmc_get_dc6_allowed_count(display, &dc6_allowed_count))
+		seq_printf(m, "DC5 -> DC6 allowed count: %d\n",
+			   dc6_allowed_count);
+	else if (i915_mmio_reg_valid(dc6_reg))
 		seq_printf(m, "DC5 -> DC6 count: %d\n",
 			   intel_de_read(display, dc6_reg));
 
diff --git a/drivers/gpu/drm/i915/display/intel_dmc.h b/drivers/gpu/drm/i915/display/intel_dmc.h
index 44cecef98e73..c78426eb4cd5 100644
--- a/drivers/gpu/drm/i915/display/intel_dmc.h
+++ b/drivers/gpu/drm/i915/display/intel_dmc.h
@@ -26,6 +26,7 @@ void intel_dmc_debugfs_register(struct intel_display *display);
 
 struct intel_dmc_snapshot *intel_dmc_snapshot_capture(struct intel_display *display);
 void intel_dmc_snapshot_print(const struct intel_dmc_snapshot *snapshot, struct drm_printer *p);
+void intel_dmc_update_dc6_allowed_count(struct intel_display *display, bool start_tracking);
 
 void assert_dmc_loaded(struct intel_display *display);