diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 454d8f9..f48a8ee 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -2083,6 +2083,7 @@ struct drm_i915_private {
 		 */
 		struct ida hw_ida;
 #define MAX_CONTEXT_HW_ID (1<<21) /* exclusive */
+#define GEN11_MAX_CONTEXT_HW_ID (1<<11) /* exclusive */
 	} contexts;
 
 	u32 fdi_rx_config;
diff --git a/drivers/gpu/drm/i915/i915_gem_context.c b/drivers/gpu/drm/i915/i915_gem_context.c
index 648e753..dbc50b9 100644
--- a/drivers/gpu/drm/i915/i915_gem_context.c
+++ b/drivers/gpu/drm/i915/i915_gem_context.c
@@ -211,9 +211,15 @@ static void context_close(struct i915_gem_context *ctx)
 static int assign_hw_id(struct drm_i915_private *dev_priv, unsigned *out)
 {
 	int ret;
+	unsigned int max;
+
+	if (INTEL_GEN(dev_priv) >= 11)
+		max = GEN11_MAX_CONTEXT_HW_ID;
+	else
+		max = MAX_CONTEXT_HW_ID;
 
 	ret = ida_simple_get(&dev_priv->contexts.hw_ida,
-			     0, MAX_CONTEXT_HW_ID, GFP_KERNEL);
+			     0, max, GFP_KERNEL);
 	if (ret < 0) {
 		/* Contexts are only released when no longer active.
 		 * Flush any pending retires to hopefully release some
@@ -221,7 +227,7 @@ static int assign_hw_id(struct drm_i915_private *dev_priv, unsigned *out)
 		 */
 		i915_gem_retire_requests(dev_priv);
 		ret = ida_simple_get(&dev_priv->contexts.hw_ida,
-				     0, MAX_CONTEXT_HW_ID, GFP_KERNEL);
+				     0, max, GFP_KERNEL);
 		if (ret < 0)
 			return ret;
 	}
@@ -462,6 +468,7 @@ int i915_gem_contexts_init(struct drm_i915_private *dev_priv)
 
 	/* Using the simple ida interface, the max is limited by sizeof(int) */
 	BUILD_BUG_ON(MAX_CONTEXT_HW_ID > INT_MAX);
+	BUILD_BUG_ON(GEN11_MAX_CONTEXT_HW_ID > INT_MAX);
 	ida_init(&dev_priv->contexts.hw_ida);
 
 	/* lowest priority; idle task */
diff --git a/drivers/gpu/drm/i915/i915_reg.h b/drivers/gpu/drm/i915/i915_reg.h
index 64933fd..2e4e6c7 100644
--- a/drivers/gpu/drm/i915/i915_reg.h
+++ b/drivers/gpu/drm/i915/i915_reg.h
@@ -3840,6 +3840,10 @@ enum {
 
 #define GEN8_CTX_ID_SHIFT 32
 #define GEN8_CTX_ID_WIDTH 21
+#define GEN11_SW_CTX_ID_SHIFT 37
+#define GEN11_SW_CTX_ID_WIDTH 11
+#define GEN11_ENGINE_CLASS_SHIFT 61
+#define GEN11_ENGINE_INSTANCE_SHIFT 48
 
 #define CHV_CLK_CTL1			_MMIO(0x101100)
 #define VLV_CLK_CTL2			_MMIO(0x101104)
diff --git a/drivers/gpu/drm/i915/intel_lrc.c b/drivers/gpu/drm/i915/intel_lrc.c
index 2fa328d..ac78fc2 100644
--- a/drivers/gpu/drm/i915/intel_lrc.c
+++ b/drivers/gpu/drm/i915/intel_lrc.c
@@ -188,6 +188,18 @@ static void execlists_init_reg_state(u32 *reg_state,
  *      bits 32-52:    ctx ID, a globally unique tag
  *      bits 53-54:    mbz, reserved for use by hardware
  *      bits 55-63:    group ID, currently unused and set to 0
+ *
+ * Starting from Gen11, the upper dword of the descriptor has a new format:
+ *
+ *      bits 32-36:    reserved
+ *      bits 37-47:    SW context ID
+ *      bits 48:53:    engine instance
+ *      bit 54:        mbz, reserved for use by hardware
+ *      bits 55-60:    SW counter
+ *      bits 61-63:    engine class
+ *
+ * engine info, SW context ID and SW counter need to form a unique number
+ * (Context ID) per lrc.
  */
 static void
 intel_lr_context_descriptor_update(struct i915_gem_context *ctx,
@@ -197,11 +209,25 @@ static void execlists_init_reg_state(u32 *reg_state,
 	u64 desc;
 
 	BUILD_BUG_ON(MAX_CONTEXT_HW_ID > (1<<GEN8_CTX_ID_WIDTH));
+	BUILD_BUG_ON(GEN11_MAX_CONTEXT_HW_ID > (1<<GEN11_SW_CTX_ID_WIDTH));
 
 	desc = ctx->desc_template;				/* bits  0-11 */
 	desc |= i915_ggtt_offset(ce->state) + LRC_HEADER_PAGES * PAGE_SIZE;
 								/* bits 12-31 */
-	desc |= (u64)ctx->hw_id << GEN8_CTX_ID_SHIFT;		/* bits 32-52 */
+
+	if (INTEL_GEN(ctx->i915) >= 11) {
+		desc |= (u64)engine->class << GEN11_ENGINE_CLASS_SHIFT;
+								/* bits 61-63 */
+
+		/* TODO: decide what to do with SW counter (bits 60-55) */
+
+		desc |= (u64)engine->instance << GEN11_ENGINE_INSTANCE_SHIFT;
+								/* bits 53-48 */
+		desc |= (u64)ctx->hw_id << GEN11_SW_CTX_ID_SHIFT;
+								/* bits 37-47 */
+	} else {
+		desc |= (u64)ctx->hw_id << GEN8_CTX_ID_SHIFT;	/* bits 32-52 */
+	}
 
 	ce->lrc_desc = desc;
 }
