// SPDX-License-Identifier: GPL-2.0-only /* * I/O access functions for Hexagon * * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved. */ #include <asm/io.h> /* These are all FIFO routines! */ /* * __raw_readsw - read words a short at a time * @addr: source address * @data: data address * @len: number of shorts to read */ void __raw_readsw(const void __iomem *addr, void *data, int len) { const volatile short int *src = (short int *) addr; short int *dst = (short int *) data; if ((u32)data & 0x1) panic("unaligned pointer to readsw"); while (len-- > 0) *dst++ = *src; } EXPORT_SYMBOL(__raw_readsw); /* * __raw_writesw - read words a short at a time * @addr: source address * @data: data address * @len: number of shorts to read */ void __raw_writesw(void __iomem *addr, const void *data, int len) { const short int *src = (short int *)data; volatile short int *dst = (short int *)addr; if ((u32)data & 0x1) panic("unaligned pointer to writesw"); while (len-- > 0) *dst = *src++; } EXPORT_SYMBOL(__raw_writesw); /* Pretty sure len is pre-adjusted for the length of the access already */ void __raw_readsl(const void __iomem *addr, void *data, int len) { const volatile long *src = (long *) addr; long *dst = (long *) data; if ((u32)data & 0x3) panic("unaligned pointer to readsl"); while (len-- > 0) *dst++ = *src; } EXPORT_SYMBOL(__raw_readsl); void __raw_writesl(void __iomem *addr, const void *data, int len) { const long *src = (long *)data; volatile long *dst = (long *)addr; if ((u32)data & 0x3) panic("unaligned pointer to writesl"); while (len-- > 0) *dst = *src++; } EXPORT_SYMBOL(__raw_writesl);