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- // 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);
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