96f1050d3d
Bill Gatliff & David Brownell pointed out we were missing some copyrights, and licensing terms in some of the files in ./arch/blackfin, so this fixes things, and cleans them up. It also removes: - verbose GPL text(refer to the top level ./COPYING file) - file names (you are looking at the file) - bug url (it's in the ./MAINTAINERS file) - "or later" on GPL-2, when we did not have that right It also allows some Blackfin-specific assembly files to be under a BSD like license (for people to use them outside of Linux). Signed-off-by: Robin Getz <robin.getz@analog.com> Signed-off-by: Mike Frysinger <vapier@gentoo.org>
72 lines
1.6 KiB
C
72 lines
1.6 KiB
C
/*
|
|
* contains various random system calls that have a non-standard
|
|
* calling sequence on the Linux/Blackfin platform.
|
|
*
|
|
* Copyright 2004-2009 Analog Devices Inc.
|
|
*
|
|
* Licensed under the GPL-2 or later
|
|
*/
|
|
|
|
#include <linux/spinlock.h>
|
|
#include <linux/sem.h>
|
|
#include <linux/msg.h>
|
|
#include <linux/shm.h>
|
|
#include <linux/syscalls.h>
|
|
#include <linux/mman.h>
|
|
#include <linux/file.h>
|
|
#include <linux/fs.h>
|
|
#include <linux/uaccess.h>
|
|
#include <linux/ipc.h>
|
|
#include <linux/unistd.h>
|
|
|
|
#include <asm/cacheflush.h>
|
|
#include <asm/dma.h>
|
|
|
|
/* common code for old and new mmaps */
|
|
static inline long
|
|
do_mmap2(unsigned long addr, unsigned long len,
|
|
unsigned long prot, unsigned long flags,
|
|
unsigned long fd, unsigned long pgoff)
|
|
{
|
|
int error = -EBADF;
|
|
struct file *file = NULL;
|
|
|
|
flags &= ~(MAP_EXECUTABLE | MAP_DENYWRITE);
|
|
if (!(flags & MAP_ANONYMOUS)) {
|
|
file = fget(fd);
|
|
if (!file)
|
|
goto out;
|
|
}
|
|
|
|
down_write(¤t->mm->mmap_sem);
|
|
error = do_mmap_pgoff(file, addr, len, prot, flags, pgoff);
|
|
up_write(¤t->mm->mmap_sem);
|
|
|
|
if (file)
|
|
fput(file);
|
|
out:
|
|
return error;
|
|
}
|
|
|
|
asmlinkage long sys_mmap2(unsigned long addr, unsigned long len,
|
|
unsigned long prot, unsigned long flags,
|
|
unsigned long fd, unsigned long pgoff)
|
|
{
|
|
return do_mmap2(addr, len, prot, flags, fd, pgoff);
|
|
}
|
|
|
|
asmlinkage void *sys_sram_alloc(size_t size, unsigned long flags)
|
|
{
|
|
return sram_alloc_with_lsl(size, flags);
|
|
}
|
|
|
|
asmlinkage int sys_sram_free(const void *addr)
|
|
{
|
|
return sram_free_with_lsl(addr);
|
|
}
|
|
|
|
asmlinkage void *sys_dma_memcpy(void *dest, const void *src, size_t len)
|
|
{
|
|
return safe_dma_memcpy(dest, src, len);
|
|
}
|