Orange Pi5 kernel

^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  2) #include <linux/dma-direct.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  3) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  4) dma_addr_t phys_to_dma(struct device *dev, phys_addr_t paddr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  5) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  6) 	return paddr | 0x80000000;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  7) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  8) 
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300  9) phys_addr_t dma_to_phys(struct device *dev, dma_addr_t dma_addr)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) 	if (dma_addr > 0x8fffffff)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) 		return dma_addr;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) 	return dma_addr & 0x0fffffff;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) }