diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
index ca385ed15bc6..b61c641b5be4 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_device.c
@@ -2529,7 +2529,11 @@ static int amdgpu_device_ip_init(struct amdgpu_device *adev)
 	if (r)
 		goto init_failed;
 
-	amdgpu_ttm_enable_buffer_funcs(adev);
+	/* If SDMA is not brought up during hwini, the ttm buffer funcs enablement
+	 * is delayed after reset-on-init completes.
+	 */
+	if (amdgpu_ip_member_of_hwini(adev, AMD_IP_BLOCK_TYPE_SDMA))
+		amdgpu_ttm_enable_buffer_funcs(adev);
 
 	/* Don't init kfd if whole hive need to be reset during init */
 	if (adev->init_lvl->level != AMDGPU_INIT_LEVEL_MINIMAL_XGMI) {
@@ -5174,8 +5178,6 @@ int amdgpu_device_reinit_after_reset(struct amdgpu_reset_context *reset_context)
 				if (r)
 					goto out;
 
-				amdgpu_ttm_enable_buffer_funcs(tmp_adev);
-
 				r = amdgpu_device_ip_resume_phase3(tmp_adev);
 				if (r)
 					goto out;
diff --git a/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c b/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c
index 2725230aa5e3..45e31b3daf06 100644
--- a/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c
+++ b/drivers/gpu/drm/amd/amdgpu/amdgpu_xgmi.c
@@ -1380,6 +1380,9 @@ static void amdgpu_xgmi_reset_on_init_work(struct work_struct *work)
 	amdgpu_device_unlock_reset_domain(tmp_adev->reset_domain);
 
 	list_for_each_entry(tmp_adev, &hive->device_list, gmc.xgmi.head) {
+		/* Enable ttm buffers funcs after the reset lock has been dropped. */
+		amdgpu_ttm_enable_buffer_funcs(tmp_adev);
+
 		r = amdgpu_ras_init_badpage_info(tmp_adev);
 		if (r && r != -EHWPOISON)
 			dev_err(tmp_adev->dev,