98 static ssize_t read_mem(struct file *file, char __user *buf,  in read_mem()  argument
158 static ssize_t write_mem(struct file *file, const char __user *buf,  in write_mem()  argument
223 int __weak phys_mem_access_prot_allowed(struct file *file,  in phys_mem_access_prot_allowed()  argument
237 static int uncached_access(struct file *file, phys_addr_t addr)  in uncached_access()  argument
247 		extern int __uncached_access(struct file *file,  in uncached_access()
250 		return __uncached_access(file, addr);  in uncached_access()
258 	if (file->f_flags & O_DSYNC)  in uncached_access()
265 static pgprot_t phys_mem_access_prot(struct file *file, unsigned long pfn,  in phys_mem_access_prot()  argument
271 	if (uncached_access(file, offset))  in phys_mem_access_prot()
279 static unsigned long get_unmapped_area_mem(struct file *file,  in get_unmapped_area_mem()  argument
291 static unsigned memory_mmap_capabilities(struct file *file)  in memory_mmap_capabilities()  argument
297 static unsigned zero_mmap_capabilities(struct file *file)  in zero_mmap_capabilities()  argument
321 static int mmap_mem(struct file *file, struct vm_area_struct *vma)  in mmap_mem()  argument
334 	if (!phys_mem_access_prot_allowed(file, vma->vm_pgoff, size,  in mmap_mem()
338 	vma->vm_page_prot = phys_mem_access_prot(file, vma->vm_pgoff,  in mmap_mem()
355 static int mmap_kmem(struct file *file, struct vm_area_struct *vma)  in mmap_kmem()  argument
373 	return mmap_mem(file, vma);  in mmap_kmem()
379 static ssize_t read_kmem(struct file *file, char __user *buf,  in read_kmem()  argument
506 static ssize_t write_kmem(struct file *file, const char __user *buf,  in write_kmem()  argument
556 static ssize_t read_port(struct file *file, char __user *buf,  in read_port()  argument
574 static ssize_t write_port(struct file *file, const char __user *buf,  in write_port()  argument
598 static ssize_t read_null(struct file *file, char __user *buf,  in read_null()  argument
604 static ssize_t write_null(struct file *file, const char __user *buf,  in write_null()  argument
628 static ssize_t splice_write_null(struct pipe_inode_info *pipe, struct file *out,  in splice_write_null()
654 static int mmap_zero(struct file *file, struct vm_area_struct *vma)  in mmap_zero()  argument
664 static ssize_t write_full(struct file *file, const char __user *buf,  in write_full()  argument
675 static loff_t null_lseek(struct file *file, loff_t offset, int orig)  in null_lseek()  argument
677 	return file->f_pos = 0;  in null_lseek()
688 static loff_t memory_lseek(struct file *file, loff_t offset, int orig)  in memory_lseek()  argument
692 	mutex_lock(&file_inode(file)->i_mutex);  in memory_lseek()
695 		offset += file->f_pos;  in memory_lseek()
702 		file->f_pos = offset;  in memory_lseek()
703 		ret = file->f_pos;  in memory_lseek()
709 	mutex_unlock(&file_inode(file)->i_mutex);  in memory_lseek()
713 static int open_port(struct inode *inode, struct file *filp)  in open_port()
807 static int memory_open(struct inode *inode, struct file *filp)  in memory_open()