diff options
Diffstat (limited to 'ANDROID_3.4.5/arch/powerpc/kernel/proc_powerpc.c')
-rw-r--r-- | ANDROID_3.4.5/arch/powerpc/kernel/proc_powerpc.c | 125 |
1 files changed, 0 insertions, 125 deletions
diff --git a/ANDROID_3.4.5/arch/powerpc/kernel/proc_powerpc.c b/ANDROID_3.4.5/arch/powerpc/kernel/proc_powerpc.c deleted file mode 100644 index c8ae3714..00000000 --- a/ANDROID_3.4.5/arch/powerpc/kernel/proc_powerpc.c +++ /dev/null @@ -1,125 +0,0 @@ -/* - * Copyright (C) 2001 Mike Corrigan & Dave Engebretsen IBM Corporation - * - * This program is free software; you can redistribute it and/or modify - * it under the terms of the GNU General Public License as published by - * the Free Software Foundation; either version 2 of the License, or - * (at your option) any later version. - * - * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA - */ - -#include <linux/init.h> -#include <linux/mm.h> -#include <linux/proc_fs.h> -#include <linux/kernel.h> - -#include <asm/machdep.h> -#include <asm/vdso_datapage.h> -#include <asm/rtas.h> -#include <asm/uaccess.h> -#include <asm/prom.h> - -#ifdef CONFIG_PPC64 - -static loff_t page_map_seek( struct file *file, loff_t off, int whence) -{ - loff_t new; - struct proc_dir_entry *dp = PDE(file->f_path.dentry->d_inode); - - switch(whence) { - case 0: - new = off; - break; - case 1: - new = file->f_pos + off; - break; - case 2: - new = dp->size + off; - break; - default: - return -EINVAL; - } - if ( new < 0 || new > dp->size ) - return -EINVAL; - return (file->f_pos = new); -} - -static ssize_t page_map_read( struct file *file, char __user *buf, size_t nbytes, - loff_t *ppos) -{ - struct proc_dir_entry *dp = PDE(file->f_path.dentry->d_inode); - return simple_read_from_buffer(buf, nbytes, ppos, dp->data, dp->size); -} - -static int page_map_mmap( struct file *file, struct vm_area_struct *vma ) -{ - struct proc_dir_entry *dp = PDE(file->f_path.dentry->d_inode); - - if ((vma->vm_end - vma->vm_start) > dp->size) - return -EINVAL; - - remap_pfn_range(vma, vma->vm_start, __pa(dp->data) >> PAGE_SHIFT, - dp->size, vma->vm_page_prot); - return 0; -} - -static const struct file_operations page_map_fops = { - .llseek = page_map_seek, - .read = page_map_read, - .mmap = page_map_mmap -}; - - -static int __init proc_ppc64_init(void) -{ - struct proc_dir_entry *pde; - - pde = proc_create_data("powerpc/systemcfg", S_IFREG|S_IRUGO, NULL, - &page_map_fops, vdso_data); - if (!pde) - return 1; - pde->size = PAGE_SIZE; - - return 0; -} -__initcall(proc_ppc64_init); - -#endif /* CONFIG_PPC64 */ - -/* - * Create the ppc64 and ppc64/rtas directories early. This allows us to - * assume that they have been previously created in drivers. - */ -static int __init proc_ppc64_create(void) -{ - struct proc_dir_entry *root; - - root = proc_mkdir("powerpc", NULL); - if (!root) - return 1; - -#ifdef CONFIG_PPC64 - if (!proc_symlink("ppc64", NULL, "powerpc")) - pr_err("Failed to create link /proc/ppc64 -> /proc/powerpc\n"); -#endif - - if (!of_find_node_by_path("/rtas")) - return 0; - - if (!proc_mkdir("rtas", root)) - return 1; - - if (!proc_symlink("rtas", NULL, "powerpc/rtas")) - return 1; - - return 0; -} -core_initcall(proc_ppc64_create); |