diff --git a/drivers/gpu/drm/i915/gem/i915_gem_pages.c b/drivers/gpu/drm/i915/gem/i915_gem_pages.c
index ecd86130b74f..89fc8ea6bcfc 100644
--- a/drivers/gpu/drm/i915/gem/i915_gem_pages.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_pages.c
@@ -469,7 +469,10 @@ enum i915_map_type i915_coherent_map_type(struct drm_i915_private *i915,
 					  struct drm_i915_gem_object *obj,
 					  bool always_coherent)
 {
-	if (i915_gem_object_is_lmem(obj))
+	/*
+	 * Wa_22016122933: always return I915_MAP_WC for MTL
+	 */
+	if (i915_gem_object_is_lmem(obj) || IS_METEORLAKE(i915))
 		return I915_MAP_WC;
 	if (HAS_LLC(i915) || always_coherent)
 		return I915_MAP_WB;
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_gsc_fw.c b/drivers/gpu/drm/i915/gt/uc/intel_gsc_fw.c
index 1d9fdfb11268..236673c02f9a 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_gsc_fw.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_gsc_fw.c
@@ -110,6 +110,13 @@ static int gsc_fw_load_prepare(struct intel_gsc_uc *gsc)
 	if (obj->base.size < gsc->fw.size)
 		return -ENOSPC;
 
+	/*
+	 * Wa_22016122933: For MTL the shared memory needs to be mapped
+	 * as WC on CPU side and UC (PAT index 2) on GPU side
+	 */
+	if (IS_METEORLAKE(i915))
+		i915_gem_object_set_cache_coherency(obj, I915_CACHE_NONE);
+
 	dst = i915_gem_object_pin_map_unlocked(obj,
 					       i915_coherent_map_type(i915, obj, true));
 	if (IS_ERR(dst))
@@ -125,6 +132,12 @@ static int gsc_fw_load_prepare(struct intel_gsc_uc *gsc)
 	memset(dst, 0, obj->base.size);
 	memcpy(dst, src, gsc->fw.size);
 
+	/*
+	 * Wa_22016122933: Making sure the data in dst is
+	 * visible to GSC right away
+	 */
+	intel_guc_write_barrier(&gt->uc.guc);
+
 	i915_gem_object_unpin_map(gsc->fw.obj);
 	i915_gem_object_unpin_map(obj);
 
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc.c b/drivers/gpu/drm/i915/gt/uc/intel_guc.c
index d76508fa3af7..f9bddaa876d9 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc.c
@@ -743,6 +743,13 @@ struct i915_vma *intel_guc_allocate_vma(struct intel_guc *guc, u32 size)
 	if (IS_ERR(obj))
 		return ERR_CAST(obj);
 
+	/*
+	 * Wa_22016122933: For MTL the shared memory needs to be mapped
+	 * as WC on CPU side and UC (PAT index 2) on GPU side
+	 */
+	if (IS_METEORLAKE(gt->i915))
+		i915_gem_object_set_cache_coherency(obj, I915_CACHE_NONE);
+
 	vma = i915_vma_instance(obj, &gt->ggtt->vm, NULL);
 	if (IS_ERR(vma))
 		goto err;
diff --git a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c
index 1803a633ed64..99a0a89091e7 100644
--- a/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c
+++ b/drivers/gpu/drm/i915/gt/uc/intel_guc_ct.c
@@ -902,6 +902,12 @@ static int ct_read(struct intel_guc_ct *ct, struct ct_incoming_msg **msg)
 	/* now update descriptor */
 	WRITE_ONCE(desc->head, head);
 
+	/*
+	 * Wa_22016122933: Making sure the head update is
+	 * visible to GuC right away
+	 */
+	intel_guc_write_barrier(ct_to_guc(ct));
+
 	return available - len;
 
 corrupted: