f8b7256096
New helper - sys_mmap_pgoff(); switch syscalls to using it. Acked-by: David S. Miller <davem@davemloft.net> Signed-off-by: Al Viro <viro@zeniv.linux.org.uk>
49 lines
1.2 KiB
C
49 lines
1.2 KiB
C
/*
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* contains various random system calls that have a non-standard
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* calling sequence on the Linux/Blackfin platform.
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*
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* Copyright 2004-2009 Analog Devices Inc.
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*
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* Licensed under the GPL-2 or later
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*/
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#include <linux/spinlock.h>
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#include <linux/sem.h>
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#include <linux/msg.h>
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#include <linux/shm.h>
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#include <linux/syscalls.h>
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#include <linux/mman.h>
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#include <linux/file.h>
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#include <linux/fs.h>
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#include <linux/uaccess.h>
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#include <linux/ipc.h>
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#include <linux/unistd.h>
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#include <asm/cacheflush.h>
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#include <asm/dma.h>
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asmlinkage void *sys_sram_alloc(size_t size, unsigned long flags)
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{
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return sram_alloc_with_lsl(size, flags);
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}
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asmlinkage int sys_sram_free(const void *addr)
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{
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return sram_free_with_lsl(addr);
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}
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asmlinkage void *sys_dma_memcpy(void *dest, const void *src, size_t len)
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{
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return safe_dma_memcpy(dest, src, len);
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}
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#if defined(CONFIG_FB) || defined(CONFIG_FB_MODULE)
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#include <linux/fb.h>
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unsigned long get_fb_unmapped_area(struct file *filp, unsigned long orig_addr,
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unsigned long len, unsigned long pgoff, unsigned long flags)
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{
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struct fb_info *info = filp->private_data;
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return (unsigned long)info->screen_base;
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}
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EXPORT_SYMBOL(get_fb_unmapped_area);
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#endif
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