cregit-Linux how code gets into the kernel

Release 4.14 arch/hexagon/lib/io.c

Directory: arch/hexagon/lib
/*
 * I/O access functions for Hexagon
 *
 * Copyright (c) 2010-2011, The Linux Foundation. All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 and
 * only version 2 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 * 02110-1301, USA.
 */

#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; }

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PersonTokensPropCommitsCommitProp
Richard Kuo72100.00%1100.00%
Total72100.00%1100.00%

/* * __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++; }

Contributors

PersonTokensPropCommitsCommitProp
Richard Kuo72100.00%1100.00%
Total72100.00%1100.00%

/* 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; }

Contributors

PersonTokensPropCommitsCommitProp
Richard Kuo68100.00%1100.00%
Total68100.00%1100.00%


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++; }

Contributors

PersonTokensPropCommitsCommitProp
Richard Kuo68100.00%1100.00%
Total68100.00%1100.00%


Overall Contributors

PersonTokensPropCommitsCommitProp
Richard Kuo288100.00%2100.00%
Total288100.00%2100.00%
Directory: arch/hexagon/lib
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