diff options
Diffstat (limited to 'arch/blackfin/kernel/sys_bfin.c')
-rw-r--r-- | arch/blackfin/kernel/sys_bfin.c | 88 |
1 files changed, 0 insertions, 88 deletions
diff --git a/arch/blackfin/kernel/sys_bfin.c b/arch/blackfin/kernel/sys_bfin.c deleted file mode 100644 index d998383cb956..000000000000 --- a/arch/blackfin/kernel/sys_bfin.c +++ /dev/null @@ -1,88 +0,0 @@ -/* - * 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> -#include <asm/cachectl.h> -#include <asm/ptrace.h> - -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); -} - -#if defined(CONFIG_FB) || defined(CONFIG_FB_MODULE) -#include <linux/fb.h> -#include <linux/export.h> -unsigned long get_fb_unmapped_area(struct file *filp, unsigned long orig_addr, - unsigned long len, unsigned long pgoff, unsigned long flags) -{ - struct fb_info *info = filp->private_data; - return (unsigned long)info->screen_base; -} -EXPORT_SYMBOL(get_fb_unmapped_area); -#endif - -/* Needed for legacy userspace atomic emulation */ -static DEFINE_SPINLOCK(bfin_spinlock_lock); - -#ifdef CONFIG_SYS_BFIN_SPINLOCK_L1 -__attribute__((l1_text)) -#endif -asmlinkage int sys_bfin_spinlock(int *p) -{ - int ret, tmp = 0; - - spin_lock(&bfin_spinlock_lock); /* This would also hold kernel preemption. */ - ret = get_user(tmp, p); - if (likely(ret == 0)) { - if (unlikely(tmp)) - ret = 1; - else - put_user(1, p); - } - spin_unlock(&bfin_spinlock_lock); - - return ret; -} - -SYSCALL_DEFINE3(cacheflush, unsigned long, addr, unsigned long, len, int, op) -{ - if (is_user_addr_valid(current, addr, len) != 0) - return -EINVAL; - - if (op & DCACHE) - blackfin_dcache_flush_range(addr, addr + len); - if (op & ICACHE) - blackfin_icache_flush_range(addr, addr + len); - - return 0; -} |