--- zzzz-none-000/linux-4.9.279/drivers/misc/mei/hw-txe.h	2021-08-08 06:38:54.000000000 +0000
+++ puma7-atom-6591-750/linux-4.9.279/drivers/misc/mei/hw-txe.h	2023-02-08 11:43:42.000000000 +0000
@@ -21,6 +21,7 @@
 
 #include "hw.h"
 #include "hw-txe-regs.h"
+#include "mm-txe.h"
 
 #define MEI_TXI_RPM_TIMEOUT    500 /* ms */
 
@@ -53,6 +54,16 @@
 	wait_queue_head_t wait_aliveness_resp;
 
 	unsigned long intr_cause;
+
+	/** mei mm support */
+	struct mei_mm_device *mdev;
+
+	/** dma support */
+	void *pool_vaddr;
+	dma_addr_t pool_paddr;
+	size_t pool_size;
+
+	void (*pool_release)(struct mei_txe_hw *hw);
 };
 
 #define to_txe_hw(dev) (struct mei_txe_hw *)((dev)->hw)
@@ -71,5 +82,8 @@
 
 int mei_txe_setup_satt2(struct mei_device *dev, phys_addr_t addr, u32 range);
 
+int mei_txe_dma_setup(struct mei_device *dev);
+void mei_txe_dma_unset(struct mei_device *dev);
+
 
 #endif /* _MEI_HW_TXE_H_ */