![Josef Sipek](/assets/img/avatar_default.png)
Signed-off-by: Josef Sipek <jsipek@fsl.cs.sunysb.edu> Signed-off-by: Andrew Morton <akpm@osdl.org> Signed-off-by: Linus Torvalds <torvalds@osdl.org>
1070 lines
31 KiB
C
1070 lines
31 KiB
C
/**
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* \file drm_ioc32.c
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*
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* 32-bit ioctl compatibility routines for the DRM.
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*
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* \author Paul Mackerras <paulus@samba.org>
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*
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* Copyright (C) Paul Mackerras 2005.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* THE AUTHOR BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
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* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
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* IN THE SOFTWARE.
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*/
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#include <linux/compat.h>
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#include "drmP.h"
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#include "drm_core.h"
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#define DRM_IOCTL_VERSION32 DRM_IOWR(0x00, drm_version32_t)
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#define DRM_IOCTL_GET_UNIQUE32 DRM_IOWR(0x01, drm_unique32_t)
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#define DRM_IOCTL_GET_MAP32 DRM_IOWR(0x04, drm_map32_t)
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#define DRM_IOCTL_GET_CLIENT32 DRM_IOWR(0x05, drm_client32_t)
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#define DRM_IOCTL_GET_STATS32 DRM_IOR( 0x06, drm_stats32_t)
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#define DRM_IOCTL_SET_UNIQUE32 DRM_IOW( 0x10, drm_unique32_t)
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#define DRM_IOCTL_ADD_MAP32 DRM_IOWR(0x15, drm_map32_t)
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#define DRM_IOCTL_ADD_BUFS32 DRM_IOWR(0x16, drm_buf_desc32_t)
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#define DRM_IOCTL_MARK_BUFS32 DRM_IOW( 0x17, drm_buf_desc32_t)
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#define DRM_IOCTL_INFO_BUFS32 DRM_IOWR(0x18, drm_buf_info32_t)
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#define DRM_IOCTL_MAP_BUFS32 DRM_IOWR(0x19, drm_buf_map32_t)
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#define DRM_IOCTL_FREE_BUFS32 DRM_IOW( 0x1a, drm_buf_free32_t)
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#define DRM_IOCTL_RM_MAP32 DRM_IOW( 0x1b, drm_map32_t)
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#define DRM_IOCTL_SET_SAREA_CTX32 DRM_IOW( 0x1c, drm_ctx_priv_map32_t)
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#define DRM_IOCTL_GET_SAREA_CTX32 DRM_IOWR(0x1d, drm_ctx_priv_map32_t)
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#define DRM_IOCTL_RES_CTX32 DRM_IOWR(0x26, drm_ctx_res32_t)
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#define DRM_IOCTL_DMA32 DRM_IOWR(0x29, drm_dma32_t)
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#define DRM_IOCTL_AGP_ENABLE32 DRM_IOW( 0x32, drm_agp_mode32_t)
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#define DRM_IOCTL_AGP_INFO32 DRM_IOR( 0x33, drm_agp_info32_t)
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#define DRM_IOCTL_AGP_ALLOC32 DRM_IOWR(0x34, drm_agp_buffer32_t)
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#define DRM_IOCTL_AGP_FREE32 DRM_IOW( 0x35, drm_agp_buffer32_t)
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#define DRM_IOCTL_AGP_BIND32 DRM_IOW( 0x36, drm_agp_binding32_t)
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#define DRM_IOCTL_AGP_UNBIND32 DRM_IOW( 0x37, drm_agp_binding32_t)
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#define DRM_IOCTL_SG_ALLOC32 DRM_IOW( 0x38, drm_scatter_gather32_t)
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#define DRM_IOCTL_SG_FREE32 DRM_IOW( 0x39, drm_scatter_gather32_t)
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#define DRM_IOCTL_WAIT_VBLANK32 DRM_IOWR(0x3a, drm_wait_vblank32_t)
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typedef struct drm_version_32 {
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int version_major; /**< Major version */
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int version_minor; /**< Minor version */
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int version_patchlevel; /**< Patch level */
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u32 name_len; /**< Length of name buffer */
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u32 name; /**< Name of driver */
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u32 date_len; /**< Length of date buffer */
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u32 date; /**< User-space buffer to hold date */
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u32 desc_len; /**< Length of desc buffer */
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u32 desc; /**< User-space buffer to hold desc */
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} drm_version32_t;
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static int compat_drm_version(struct file *file, unsigned int cmd,
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unsigned long arg)
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{
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drm_version32_t v32;
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drm_version_t __user *version;
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int err;
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if (copy_from_user(&v32, (void __user *)arg, sizeof(v32)))
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return -EFAULT;
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version = compat_alloc_user_space(sizeof(*version));
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if (!access_ok(VERIFY_WRITE, version, sizeof(*version)))
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return -EFAULT;
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if (__put_user(v32.name_len, &version->name_len)
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|| __put_user((void __user *)(unsigned long)v32.name,
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&version->name)
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|| __put_user(v32.date_len, &version->date_len)
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|| __put_user((void __user *)(unsigned long)v32.date,
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&version->date)
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|| __put_user(v32.desc_len, &version->desc_len)
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|| __put_user((void __user *)(unsigned long)v32.desc,
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&version->desc))
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return -EFAULT;
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err = drm_ioctl(file->f_path.dentry->d_inode, file,
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DRM_IOCTL_VERSION, (unsigned long)version);
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if (err)
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return err;
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if (__get_user(v32.version_major, &version->version_major)
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|| __get_user(v32.version_minor, &version->version_minor)
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|| __get_user(v32.version_patchlevel, &version->version_patchlevel)
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|| __get_user(v32.name_len, &version->name_len)
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|| __get_user(v32.date_len, &version->date_len)
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|| __get_user(v32.desc_len, &version->desc_len))
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return -EFAULT;
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if (copy_to_user((void __user *)arg, &v32, sizeof(v32)))
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return -EFAULT;
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return 0;
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}
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typedef struct drm_unique32 {
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u32 unique_len; /**< Length of unique */
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u32 unique; /**< Unique name for driver instantiation */
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} drm_unique32_t;
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static int compat_drm_getunique(struct file *file, unsigned int cmd,
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unsigned long arg)
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{
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drm_unique32_t uq32;
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drm_unique_t __user *u;
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int err;
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if (copy_from_user(&uq32, (void __user *)arg, sizeof(uq32)))
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return -EFAULT;
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u = compat_alloc_user_space(sizeof(*u));
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if (!access_ok(VERIFY_WRITE, u, sizeof(*u)))
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return -EFAULT;
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if (__put_user(uq32.unique_len, &u->unique_len)
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|| __put_user((void __user *)(unsigned long)uq32.unique,
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&u->unique))
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return -EFAULT;
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err = drm_ioctl(file->f_path.dentry->d_inode, file,
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DRM_IOCTL_GET_UNIQUE, (unsigned long)u);
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if (err)
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return err;
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if (__get_user(uq32.unique_len, &u->unique_len))
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return -EFAULT;
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if (copy_to_user((void __user *)arg, &uq32, sizeof(uq32)))
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return -EFAULT;
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return 0;
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}
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static int compat_drm_setunique(struct file *file, unsigned int cmd,
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unsigned long arg)
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{
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drm_unique32_t uq32;
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drm_unique_t __user *u;
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if (copy_from_user(&uq32, (void __user *)arg, sizeof(uq32)))
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return -EFAULT;
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u = compat_alloc_user_space(sizeof(*u));
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if (!access_ok(VERIFY_WRITE, u, sizeof(*u)))
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return -EFAULT;
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if (__put_user(uq32.unique_len, &u->unique_len)
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|| __put_user((void __user *)(unsigned long)uq32.unique,
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&u->unique))
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return -EFAULT;
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return drm_ioctl(file->f_path.dentry->d_inode, file,
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DRM_IOCTL_SET_UNIQUE, (unsigned long)u);
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}
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typedef struct drm_map32 {
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u32 offset; /**< Requested physical address (0 for SAREA)*/
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u32 size; /**< Requested physical size (bytes) */
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drm_map_type_t type; /**< Type of memory to map */
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drm_map_flags_t flags; /**< Flags */
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u32 handle; /**< User-space: "Handle" to pass to mmap() */
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int mtrr; /**< MTRR slot used */
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} drm_map32_t;
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static int compat_drm_getmap(struct file *file, unsigned int cmd,
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unsigned long arg)
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{
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drm_map32_t __user *argp = (void __user *)arg;
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drm_map32_t m32;
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drm_map_t __user *map;
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int idx, err;
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void *handle;
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if (get_user(idx, &argp->offset))
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return -EFAULT;
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map = compat_alloc_user_space(sizeof(*map));
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if (!access_ok(VERIFY_WRITE, map, sizeof(*map)))
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return -EFAULT;
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if (__put_user(idx, &map->offset))
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return -EFAULT;
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err = drm_ioctl(file->f_path.dentry->d_inode, file,
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DRM_IOCTL_GET_MAP, (unsigned long)map);
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if (err)
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return err;
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if (__get_user(m32.offset, &map->offset)
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|| __get_user(m32.size, &map->size)
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|| __get_user(m32.type, &map->type)
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|| __get_user(m32.flags, &map->flags)
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|| __get_user(handle, &map->handle)
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|| __get_user(m32.mtrr, &map->mtrr))
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return -EFAULT;
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m32.handle = (unsigned long)handle;
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if (copy_to_user(argp, &m32, sizeof(m32)))
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return -EFAULT;
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return 0;
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}
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static int compat_drm_addmap(struct file *file, unsigned int cmd,
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unsigned long arg)
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{
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drm_map32_t __user *argp = (void __user *)arg;
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drm_map32_t m32;
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drm_map_t __user *map;
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int err;
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void *handle;
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if (copy_from_user(&m32, argp, sizeof(m32)))
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return -EFAULT;
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map = compat_alloc_user_space(sizeof(*map));
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if (!access_ok(VERIFY_WRITE, map, sizeof(*map)))
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return -EFAULT;
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if (__put_user(m32.offset, &map->offset)
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|| __put_user(m32.size, &map->size)
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|| __put_user(m32.type, &map->type)
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|| __put_user(m32.flags, &map->flags))
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return -EFAULT;
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err = drm_ioctl(file->f_path.dentry->d_inode, file,
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DRM_IOCTL_ADD_MAP, (unsigned long)map);
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if (err)
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return err;
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if (__get_user(m32.offset, &map->offset)
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|| __get_user(m32.mtrr, &map->mtrr)
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|| __get_user(handle, &map->handle))
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return -EFAULT;
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m32.handle = (unsigned long)handle;
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if (m32.handle != (unsigned long)handle && printk_ratelimit())
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printk(KERN_ERR "compat_drm_addmap truncated handle"
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" %p for type %d offset %x\n",
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handle, m32.type, m32.offset);
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if (copy_to_user(argp, &m32, sizeof(m32)))
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return -EFAULT;
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return 0;
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}
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static int compat_drm_rmmap(struct file *file, unsigned int cmd,
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unsigned long arg)
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{
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drm_map32_t __user *argp = (void __user *)arg;
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drm_map_t __user *map;
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u32 handle;
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if (get_user(handle, &argp->handle))
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return -EFAULT;
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map = compat_alloc_user_space(sizeof(*map));
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if (!access_ok(VERIFY_WRITE, map, sizeof(*map)))
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return -EFAULT;
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if (__put_user((void *)(unsigned long)handle, &map->handle))
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return -EFAULT;
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return drm_ioctl(file->f_path.dentry->d_inode, file,
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DRM_IOCTL_RM_MAP, (unsigned long)map);
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}
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typedef struct drm_client32 {
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int idx; /**< Which client desired? */
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int auth; /**< Is client authenticated? */
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u32 pid; /**< Process ID */
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u32 uid; /**< User ID */
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u32 magic; /**< Magic */
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u32 iocs; /**< Ioctl count */
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} drm_client32_t;
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static int compat_drm_getclient(struct file *file, unsigned int cmd,
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unsigned long arg)
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{
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drm_client32_t c32;
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drm_client32_t __user *argp = (void __user *)arg;
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drm_client_t __user *client;
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int idx, err;
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if (get_user(idx, &argp->idx))
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return -EFAULT;
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client = compat_alloc_user_space(sizeof(*client));
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if (!access_ok(VERIFY_WRITE, client, sizeof(*client)))
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return -EFAULT;
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if (__put_user(idx, &client->idx))
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return -EFAULT;
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err = drm_ioctl(file->f_path.dentry->d_inode, file,
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DRM_IOCTL_GET_CLIENT, (unsigned long)client);
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if (err)
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return err;
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if (__get_user(c32.auth, &client->auth)
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|| __get_user(c32.pid, &client->pid)
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|| __get_user(c32.uid, &client->uid)
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|| __get_user(c32.magic, &client->magic)
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|| __get_user(c32.iocs, &client->iocs))
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return -EFAULT;
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if (copy_to_user(argp, &c32, sizeof(c32)))
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return -EFAULT;
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return 0;
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}
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typedef struct drm_stats32 {
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u32 count;
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struct {
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u32 value;
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drm_stat_type_t type;
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} data[15];
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} drm_stats32_t;
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static int compat_drm_getstats(struct file *file, unsigned int cmd,
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unsigned long arg)
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{
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drm_stats32_t s32;
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drm_stats32_t __user *argp = (void __user *)arg;
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drm_stats_t __user *stats;
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int i, err;
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stats = compat_alloc_user_space(sizeof(*stats));
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if (!access_ok(VERIFY_WRITE, stats, sizeof(*stats)))
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return -EFAULT;
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err = drm_ioctl(file->f_path.dentry->d_inode, file,
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DRM_IOCTL_GET_STATS, (unsigned long)stats);
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if (err)
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return err;
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if (__get_user(s32.count, &stats->count))
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return -EFAULT;
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for (i = 0; i < 15; ++i)
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if (__get_user(s32.data[i].value, &stats->data[i].value)
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|| __get_user(s32.data[i].type, &stats->data[i].type))
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return -EFAULT;
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if (copy_to_user(argp, &s32, sizeof(s32)))
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return -EFAULT;
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return 0;
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}
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typedef struct drm_buf_desc32 {
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int count; /**< Number of buffers of this size */
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int size; /**< Size in bytes */
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int low_mark; /**< Low water mark */
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int high_mark; /**< High water mark */
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int flags;
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u32 agp_start; /**< Start address in the AGP aperture */
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} drm_buf_desc32_t;
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static int compat_drm_addbufs(struct file *file, unsigned int cmd,
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unsigned long arg)
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{
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drm_buf_desc32_t __user *argp = (void __user *)arg;
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drm_buf_desc_t __user *buf;
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int err;
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unsigned long agp_start;
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buf = compat_alloc_user_space(sizeof(*buf));
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if (!access_ok(VERIFY_WRITE, buf, sizeof(*buf))
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|| !access_ok(VERIFY_WRITE, argp, sizeof(*argp)))
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return -EFAULT;
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if (__copy_in_user(buf, argp, offsetof(drm_buf_desc32_t, agp_start))
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|| __get_user(agp_start, &argp->agp_start)
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|| __put_user(agp_start, &buf->agp_start))
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return -EFAULT;
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err = drm_ioctl(file->f_path.dentry->d_inode, file,
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DRM_IOCTL_ADD_BUFS, (unsigned long)buf);
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if (err)
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return err;
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if (__copy_in_user(argp, buf, offsetof(drm_buf_desc32_t, agp_start))
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|| __get_user(agp_start, &buf->agp_start)
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|| __put_user(agp_start, &argp->agp_start))
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return -EFAULT;
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return 0;
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}
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static int compat_drm_markbufs(struct file *file, unsigned int cmd,
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unsigned long arg)
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{
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drm_buf_desc32_t b32;
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drm_buf_desc32_t __user *argp = (void __user *)arg;
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drm_buf_desc_t __user *buf;
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if (copy_from_user(&b32, argp, sizeof(b32)))
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return -EFAULT;
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buf = compat_alloc_user_space(sizeof(*buf));
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if (!access_ok(VERIFY_WRITE, buf, sizeof(*buf)))
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return -EFAULT;
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if (__put_user(b32.size, &buf->size)
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|| __put_user(b32.low_mark, &buf->low_mark)
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|| __put_user(b32.high_mark, &buf->high_mark))
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return -EFAULT;
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return drm_ioctl(file->f_path.dentry->d_inode, file,
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DRM_IOCTL_MARK_BUFS, (unsigned long)buf);
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}
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typedef struct drm_buf_info32 {
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int count; /**< Entries in list */
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u32 list;
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} drm_buf_info32_t;
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static int compat_drm_infobufs(struct file *file, unsigned int cmd,
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unsigned long arg)
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{
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drm_buf_info32_t req32;
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drm_buf_info32_t __user *argp = (void __user *)arg;
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drm_buf_desc32_t __user *to;
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drm_buf_info_t __user *request;
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drm_buf_desc_t __user *list;
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size_t nbytes;
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int i, err;
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int count, actual;
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if (copy_from_user(&req32, argp, sizeof(req32)))
|
|
return -EFAULT;
|
|
|
|
count = req32.count;
|
|
to = (drm_buf_desc32_t __user *) (unsigned long)req32.list;
|
|
if (count < 0)
|
|
count = 0;
|
|
if (count > 0
|
|
&& !access_ok(VERIFY_WRITE, to, count * sizeof(drm_buf_desc32_t)))
|
|
return -EFAULT;
|
|
|
|
nbytes = sizeof(*request) + count * sizeof(drm_buf_desc_t);
|
|
request = compat_alloc_user_space(nbytes);
|
|
if (!access_ok(VERIFY_WRITE, request, nbytes))
|
|
return -EFAULT;
|
|
list = (drm_buf_desc_t *) (request + 1);
|
|
|
|
if (__put_user(count, &request->count)
|
|
|| __put_user(list, &request->list))
|
|
return -EFAULT;
|
|
|
|
err = drm_ioctl(file->f_path.dentry->d_inode, file,
|
|
DRM_IOCTL_INFO_BUFS, (unsigned long)request);
|
|
if (err)
|
|
return err;
|
|
|
|
if (__get_user(actual, &request->count))
|
|
return -EFAULT;
|
|
if (count >= actual)
|
|
for (i = 0; i < actual; ++i)
|
|
if (__copy_in_user(&to[i], &list[i],
|
|
offsetof(drm_buf_desc_t, flags)))
|
|
return -EFAULT;
|
|
|
|
if (__put_user(actual, &argp->count))
|
|
return -EFAULT;
|
|
|
|
return 0;
|
|
}
|
|
|
|
typedef struct drm_buf_pub32 {
|
|
int idx; /**< Index into the master buffer list */
|
|
int total; /**< Buffer size */
|
|
int used; /**< Amount of buffer in use (for DMA) */
|
|
u32 address; /**< Address of buffer */
|
|
} drm_buf_pub32_t;
|
|
|
|
typedef struct drm_buf_map32 {
|
|
int count; /**< Length of the buffer list */
|
|
u32 virtual; /**< Mmap'd area in user-virtual */
|
|
u32 list; /**< Buffer information */
|
|
} drm_buf_map32_t;
|
|
|
|
static int compat_drm_mapbufs(struct file *file, unsigned int cmd,
|
|
unsigned long arg)
|
|
{
|
|
drm_buf_map32_t __user *argp = (void __user *)arg;
|
|
drm_buf_map32_t req32;
|
|
drm_buf_pub32_t __user *list32;
|
|
drm_buf_map_t __user *request;
|
|
drm_buf_pub_t __user *list;
|
|
int i, err;
|
|
int count, actual;
|
|
size_t nbytes;
|
|
void __user *addr;
|
|
|
|
if (copy_from_user(&req32, argp, sizeof(req32)))
|
|
return -EFAULT;
|
|
count = req32.count;
|
|
list32 = (void __user *)(unsigned long)req32.list;
|
|
|
|
if (count < 0)
|
|
return -EINVAL;
|
|
nbytes = sizeof(*request) + count * sizeof(drm_buf_pub_t);
|
|
request = compat_alloc_user_space(nbytes);
|
|
if (!access_ok(VERIFY_WRITE, request, nbytes))
|
|
return -EFAULT;
|
|
list = (drm_buf_pub_t *) (request + 1);
|
|
|
|
if (__put_user(count, &request->count)
|
|
|| __put_user(list, &request->list))
|
|
return -EFAULT;
|
|
|
|
err = drm_ioctl(file->f_path.dentry->d_inode, file,
|
|
DRM_IOCTL_MAP_BUFS, (unsigned long)request);
|
|
if (err)
|
|
return err;
|
|
|
|
if (__get_user(actual, &request->count))
|
|
return -EFAULT;
|
|
if (count >= actual)
|
|
for (i = 0; i < actual; ++i)
|
|
if (__copy_in_user(&list32[i], &list[i],
|
|
offsetof(drm_buf_pub_t, address))
|
|
|| __get_user(addr, &list[i].address)
|
|
|| __put_user((unsigned long)addr,
|
|
&list32[i].address))
|
|
return -EFAULT;
|
|
|
|
if (__put_user(actual, &argp->count)
|
|
|| __get_user(addr, &request->virtual)
|
|
|| __put_user((unsigned long)addr, &argp->virtual))
|
|
return -EFAULT;
|
|
|
|
return 0;
|
|
}
|
|
|
|
typedef struct drm_buf_free32 {
|
|
int count;
|
|
u32 list;
|
|
} drm_buf_free32_t;
|
|
|
|
static int compat_drm_freebufs(struct file *file, unsigned int cmd,
|
|
unsigned long arg)
|
|
{
|
|
drm_buf_free32_t req32;
|
|
drm_buf_free_t __user *request;
|
|
drm_buf_free32_t __user *argp = (void __user *)arg;
|
|
|
|
if (copy_from_user(&req32, argp, sizeof(req32)))
|
|
return -EFAULT;
|
|
|
|
request = compat_alloc_user_space(sizeof(*request));
|
|
if (!access_ok(VERIFY_WRITE, request, sizeof(*request)))
|
|
return -EFAULT;
|
|
if (__put_user(req32.count, &request->count)
|
|
|| __put_user((int __user *)(unsigned long)req32.list,
|
|
&request->list))
|
|
return -EFAULT;
|
|
|
|
return drm_ioctl(file->f_path.dentry->d_inode, file,
|
|
DRM_IOCTL_FREE_BUFS, (unsigned long)request);
|
|
}
|
|
|
|
typedef struct drm_ctx_priv_map32 {
|
|
unsigned int ctx_id; /**< Context requesting private mapping */
|
|
u32 handle; /**< Handle of map */
|
|
} drm_ctx_priv_map32_t;
|
|
|
|
static int compat_drm_setsareactx(struct file *file, unsigned int cmd,
|
|
unsigned long arg)
|
|
{
|
|
drm_ctx_priv_map32_t req32;
|
|
drm_ctx_priv_map_t __user *request;
|
|
drm_ctx_priv_map32_t __user *argp = (void __user *)arg;
|
|
|
|
if (copy_from_user(&req32, argp, sizeof(req32)))
|
|
return -EFAULT;
|
|
|
|
request = compat_alloc_user_space(sizeof(*request));
|
|
if (!access_ok(VERIFY_WRITE, request, sizeof(*request)))
|
|
return -EFAULT;
|
|
if (__put_user(req32.ctx_id, &request->ctx_id)
|
|
|| __put_user((void *)(unsigned long)req32.handle,
|
|
&request->handle))
|
|
return -EFAULT;
|
|
|
|
return drm_ioctl(file->f_path.dentry->d_inode, file,
|
|
DRM_IOCTL_SET_SAREA_CTX, (unsigned long)request);
|
|
}
|
|
|
|
static int compat_drm_getsareactx(struct file *file, unsigned int cmd,
|
|
unsigned long arg)
|
|
{
|
|
drm_ctx_priv_map_t __user *request;
|
|
drm_ctx_priv_map32_t __user *argp = (void __user *)arg;
|
|
int err;
|
|
unsigned int ctx_id;
|
|
void *handle;
|
|
|
|
if (!access_ok(VERIFY_WRITE, argp, sizeof(*argp))
|
|
|| __get_user(ctx_id, &argp->ctx_id))
|
|
return -EFAULT;
|
|
|
|
request = compat_alloc_user_space(sizeof(*request));
|
|
if (!access_ok(VERIFY_WRITE, request, sizeof(*request)))
|
|
return -EFAULT;
|
|
if (__put_user(ctx_id, &request->ctx_id))
|
|
return -EFAULT;
|
|
|
|
err = drm_ioctl(file->f_path.dentry->d_inode, file,
|
|
DRM_IOCTL_GET_SAREA_CTX, (unsigned long)request);
|
|
if (err)
|
|
return err;
|
|
|
|
if (__get_user(handle, &request->handle)
|
|
|| __put_user((unsigned long)handle, &argp->handle))
|
|
return -EFAULT;
|
|
|
|
return 0;
|
|
}
|
|
|
|
typedef struct drm_ctx_res32 {
|
|
int count;
|
|
u32 contexts;
|
|
} drm_ctx_res32_t;
|
|
|
|
static int compat_drm_resctx(struct file *file, unsigned int cmd,
|
|
unsigned long arg)
|
|
{
|
|
drm_ctx_res32_t __user *argp = (void __user *)arg;
|
|
drm_ctx_res32_t res32;
|
|
drm_ctx_res_t __user *res;
|
|
int err;
|
|
|
|
if (copy_from_user(&res32, argp, sizeof(res32)))
|
|
return -EFAULT;
|
|
|
|
res = compat_alloc_user_space(sizeof(*res));
|
|
if (!access_ok(VERIFY_WRITE, res, sizeof(*res)))
|
|
return -EFAULT;
|
|
if (__put_user(res32.count, &res->count)
|
|
|| __put_user((drm_ctx_t __user *) (unsigned long)res32.contexts,
|
|
&res->contexts))
|
|
return -EFAULT;
|
|
|
|
err = drm_ioctl(file->f_path.dentry->d_inode, file,
|
|
DRM_IOCTL_RES_CTX, (unsigned long)res);
|
|
if (err)
|
|
return err;
|
|
|
|
if (__get_user(res32.count, &res->count)
|
|
|| __put_user(res32.count, &argp->count))
|
|
return -EFAULT;
|
|
|
|
return 0;
|
|
}
|
|
|
|
typedef struct drm_dma32 {
|
|
int context; /**< Context handle */
|
|
int send_count; /**< Number of buffers to send */
|
|
u32 send_indices; /**< List of handles to buffers */
|
|
u32 send_sizes; /**< Lengths of data to send */
|
|
drm_dma_flags_t flags; /**< Flags */
|
|
int request_count; /**< Number of buffers requested */
|
|
int request_size; /**< Desired size for buffers */
|
|
u32 request_indices; /**< Buffer information */
|
|
u32 request_sizes;
|
|
int granted_count; /**< Number of buffers granted */
|
|
} drm_dma32_t;
|
|
|
|
static int compat_drm_dma(struct file *file, unsigned int cmd,
|
|
unsigned long arg)
|
|
{
|
|
drm_dma32_t d32;
|
|
drm_dma32_t __user *argp = (void __user *)arg;
|
|
drm_dma_t __user *d;
|
|
int err;
|
|
|
|
if (copy_from_user(&d32, argp, sizeof(d32)))
|
|
return -EFAULT;
|
|
|
|
d = compat_alloc_user_space(sizeof(*d));
|
|
if (!access_ok(VERIFY_WRITE, d, sizeof(*d)))
|
|
return -EFAULT;
|
|
|
|
if (__put_user(d32.context, &d->context)
|
|
|| __put_user(d32.send_count, &d->send_count)
|
|
|| __put_user((int __user *)(unsigned long)d32.send_indices,
|
|
&d->send_indices)
|
|
|| __put_user((int __user *)(unsigned long)d32.send_sizes,
|
|
&d->send_sizes)
|
|
|| __put_user(d32.flags, &d->flags)
|
|
|| __put_user(d32.request_count, &d->request_count)
|
|
|| __put_user((int __user *)(unsigned long)d32.request_indices,
|
|
&d->request_indices)
|
|
|| __put_user((int __user *)(unsigned long)d32.request_sizes,
|
|
&d->request_sizes))
|
|
return -EFAULT;
|
|
|
|
err = drm_ioctl(file->f_path.dentry->d_inode, file,
|
|
DRM_IOCTL_DMA, (unsigned long)d);
|
|
if (err)
|
|
return err;
|
|
|
|
if (__get_user(d32.request_size, &d->request_size)
|
|
|| __get_user(d32.granted_count, &d->granted_count)
|
|
|| __put_user(d32.request_size, &argp->request_size)
|
|
|| __put_user(d32.granted_count, &argp->granted_count))
|
|
return -EFAULT;
|
|
|
|
return 0;
|
|
}
|
|
|
|
#if __OS_HAS_AGP
|
|
typedef struct drm_agp_mode32 {
|
|
u32 mode; /**< AGP mode */
|
|
} drm_agp_mode32_t;
|
|
|
|
static int compat_drm_agp_enable(struct file *file, unsigned int cmd,
|
|
unsigned long arg)
|
|
{
|
|
drm_agp_mode32_t __user *argp = (void __user *)arg;
|
|
drm_agp_mode32_t m32;
|
|
drm_agp_mode_t __user *mode;
|
|
|
|
if (get_user(m32.mode, &argp->mode))
|
|
return -EFAULT;
|
|
|
|
mode = compat_alloc_user_space(sizeof(*mode));
|
|
if (put_user(m32.mode, &mode->mode))
|
|
return -EFAULT;
|
|
|
|
return drm_ioctl(file->f_path.dentry->d_inode, file,
|
|
DRM_IOCTL_AGP_ENABLE, (unsigned long)mode);
|
|
}
|
|
|
|
typedef struct drm_agp_info32 {
|
|
int agp_version_major;
|
|
int agp_version_minor;
|
|
u32 mode;
|
|
u32 aperture_base; /* physical address */
|
|
u32 aperture_size; /* bytes */
|
|
u32 memory_allowed; /* bytes */
|
|
u32 memory_used;
|
|
|
|
/* PCI information */
|
|
unsigned short id_vendor;
|
|
unsigned short id_device;
|
|
} drm_agp_info32_t;
|
|
|
|
static int compat_drm_agp_info(struct file *file, unsigned int cmd,
|
|
unsigned long arg)
|
|
{
|
|
drm_agp_info32_t __user *argp = (void __user *)arg;
|
|
drm_agp_info32_t i32;
|
|
drm_agp_info_t __user *info;
|
|
int err;
|
|
|
|
info = compat_alloc_user_space(sizeof(*info));
|
|
if (!access_ok(VERIFY_WRITE, info, sizeof(*info)))
|
|
return -EFAULT;
|
|
|
|
err = drm_ioctl(file->f_path.dentry->d_inode, file,
|
|
DRM_IOCTL_AGP_INFO, (unsigned long)info);
|
|
if (err)
|
|
return err;
|
|
|
|
if (__get_user(i32.agp_version_major, &info->agp_version_major)
|
|
|| __get_user(i32.agp_version_minor, &info->agp_version_minor)
|
|
|| __get_user(i32.mode, &info->mode)
|
|
|| __get_user(i32.aperture_base, &info->aperture_base)
|
|
|| __get_user(i32.aperture_size, &info->aperture_size)
|
|
|| __get_user(i32.memory_allowed, &info->memory_allowed)
|
|
|| __get_user(i32.memory_used, &info->memory_used)
|
|
|| __get_user(i32.id_vendor, &info->id_vendor)
|
|
|| __get_user(i32.id_device, &info->id_device))
|
|
return -EFAULT;
|
|
|
|
if (copy_to_user(argp, &i32, sizeof(i32)))
|
|
return -EFAULT;
|
|
|
|
return 0;
|
|
}
|
|
|
|
typedef struct drm_agp_buffer32 {
|
|
u32 size; /**< In bytes -- will round to page boundary */
|
|
u32 handle; /**< Used for binding / unbinding */
|
|
u32 type; /**< Type of memory to allocate */
|
|
u32 physical; /**< Physical used by i810 */
|
|
} drm_agp_buffer32_t;
|
|
|
|
static int compat_drm_agp_alloc(struct file *file, unsigned int cmd,
|
|
unsigned long arg)
|
|
{
|
|
drm_agp_buffer32_t __user *argp = (void __user *)arg;
|
|
drm_agp_buffer32_t req32;
|
|
drm_agp_buffer_t __user *request;
|
|
int err;
|
|
|
|
if (copy_from_user(&req32, argp, sizeof(req32)))
|
|
return -EFAULT;
|
|
|
|
request = compat_alloc_user_space(sizeof(*request));
|
|
if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
|
|
|| __put_user(req32.size, &request->size)
|
|
|| __put_user(req32.type, &request->type))
|
|
return -EFAULT;
|
|
|
|
err = drm_ioctl(file->f_path.dentry->d_inode, file,
|
|
DRM_IOCTL_AGP_ALLOC, (unsigned long)request);
|
|
if (err)
|
|
return err;
|
|
|
|
if (__get_user(req32.handle, &request->handle)
|
|
|| __get_user(req32.physical, &request->physical)
|
|
|| copy_to_user(argp, &req32, sizeof(req32))) {
|
|
drm_ioctl(file->f_path.dentry->d_inode, file,
|
|
DRM_IOCTL_AGP_FREE, (unsigned long)request);
|
|
return -EFAULT;
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int compat_drm_agp_free(struct file *file, unsigned int cmd,
|
|
unsigned long arg)
|
|
{
|
|
drm_agp_buffer32_t __user *argp = (void __user *)arg;
|
|
drm_agp_buffer_t __user *request;
|
|
u32 handle;
|
|
|
|
request = compat_alloc_user_space(sizeof(*request));
|
|
if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
|
|
|| get_user(handle, &argp->handle)
|
|
|| __put_user(handle, &request->handle))
|
|
return -EFAULT;
|
|
|
|
return drm_ioctl(file->f_path.dentry->d_inode, file,
|
|
DRM_IOCTL_AGP_FREE, (unsigned long)request);
|
|
}
|
|
|
|
typedef struct drm_agp_binding32 {
|
|
u32 handle; /**< From drm_agp_buffer */
|
|
u32 offset; /**< In bytes -- will round to page boundary */
|
|
} drm_agp_binding32_t;
|
|
|
|
static int compat_drm_agp_bind(struct file *file, unsigned int cmd,
|
|
unsigned long arg)
|
|
{
|
|
drm_agp_binding32_t __user *argp = (void __user *)arg;
|
|
drm_agp_binding32_t req32;
|
|
drm_agp_binding_t __user *request;
|
|
|
|
if (copy_from_user(&req32, argp, sizeof(req32)))
|
|
return -EFAULT;
|
|
|
|
request = compat_alloc_user_space(sizeof(*request));
|
|
if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
|
|
|| __put_user(req32.handle, &request->handle)
|
|
|| __put_user(req32.offset, &request->offset))
|
|
return -EFAULT;
|
|
|
|
return drm_ioctl(file->f_path.dentry->d_inode, file,
|
|
DRM_IOCTL_AGP_BIND, (unsigned long)request);
|
|
}
|
|
|
|
static int compat_drm_agp_unbind(struct file *file, unsigned int cmd,
|
|
unsigned long arg)
|
|
{
|
|
drm_agp_binding32_t __user *argp = (void __user *)arg;
|
|
drm_agp_binding_t __user *request;
|
|
u32 handle;
|
|
|
|
request = compat_alloc_user_space(sizeof(*request));
|
|
if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
|
|
|| get_user(handle, &argp->handle)
|
|
|| __put_user(handle, &request->handle))
|
|
return -EFAULT;
|
|
|
|
return drm_ioctl(file->f_path.dentry->d_inode, file,
|
|
DRM_IOCTL_AGP_UNBIND, (unsigned long)request);
|
|
}
|
|
#endif /* __OS_HAS_AGP */
|
|
|
|
typedef struct drm_scatter_gather32 {
|
|
u32 size; /**< In bytes -- will round to page boundary */
|
|
u32 handle; /**< Used for mapping / unmapping */
|
|
} drm_scatter_gather32_t;
|
|
|
|
static int compat_drm_sg_alloc(struct file *file, unsigned int cmd,
|
|
unsigned long arg)
|
|
{
|
|
drm_scatter_gather32_t __user *argp = (void __user *)arg;
|
|
drm_scatter_gather_t __user *request;
|
|
int err;
|
|
unsigned long x;
|
|
|
|
request = compat_alloc_user_space(sizeof(*request));
|
|
if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
|
|
|| !access_ok(VERIFY_WRITE, argp, sizeof(*argp))
|
|
|| __get_user(x, &argp->size)
|
|
|| __put_user(x, &request->size))
|
|
return -EFAULT;
|
|
|
|
err = drm_ioctl(file->f_path.dentry->d_inode, file,
|
|
DRM_IOCTL_SG_ALLOC, (unsigned long)request);
|
|
if (err)
|
|
return err;
|
|
|
|
/* XXX not sure about the handle conversion here... */
|
|
if (__get_user(x, &request->handle)
|
|
|| __put_user(x >> PAGE_SHIFT, &argp->handle))
|
|
return -EFAULT;
|
|
|
|
return 0;
|
|
}
|
|
|
|
static int compat_drm_sg_free(struct file *file, unsigned int cmd,
|
|
unsigned long arg)
|
|
{
|
|
drm_scatter_gather32_t __user *argp = (void __user *)arg;
|
|
drm_scatter_gather_t __user *request;
|
|
unsigned long x;
|
|
|
|
request = compat_alloc_user_space(sizeof(*request));
|
|
if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
|
|
|| !access_ok(VERIFY_WRITE, argp, sizeof(*argp))
|
|
|| __get_user(x, &argp->handle)
|
|
|| __put_user(x << PAGE_SHIFT, &request->handle))
|
|
return -EFAULT;
|
|
|
|
return drm_ioctl(file->f_path.dentry->d_inode, file,
|
|
DRM_IOCTL_SG_FREE, (unsigned long)request);
|
|
}
|
|
|
|
struct drm_wait_vblank_request32 {
|
|
drm_vblank_seq_type_t type;
|
|
unsigned int sequence;
|
|
u32 signal;
|
|
};
|
|
|
|
struct drm_wait_vblank_reply32 {
|
|
drm_vblank_seq_type_t type;
|
|
unsigned int sequence;
|
|
s32 tval_sec;
|
|
s32 tval_usec;
|
|
};
|
|
|
|
typedef union drm_wait_vblank32 {
|
|
struct drm_wait_vblank_request32 request;
|
|
struct drm_wait_vblank_reply32 reply;
|
|
} drm_wait_vblank32_t;
|
|
|
|
static int compat_drm_wait_vblank(struct file *file, unsigned int cmd,
|
|
unsigned long arg)
|
|
{
|
|
drm_wait_vblank32_t __user *argp = (void __user *)arg;
|
|
drm_wait_vblank32_t req32;
|
|
drm_wait_vblank_t __user *request;
|
|
int err;
|
|
|
|
if (copy_from_user(&req32, argp, sizeof(req32)))
|
|
return -EFAULT;
|
|
|
|
request = compat_alloc_user_space(sizeof(*request));
|
|
if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
|
|
|| __put_user(req32.request.type, &request->request.type)
|
|
|| __put_user(req32.request.sequence, &request->request.sequence)
|
|
|| __put_user(req32.request.signal, &request->request.signal))
|
|
return -EFAULT;
|
|
|
|
err = drm_ioctl(file->f_path.dentry->d_inode, file,
|
|
DRM_IOCTL_WAIT_VBLANK, (unsigned long)request);
|
|
if (err)
|
|
return err;
|
|
|
|
if (__get_user(req32.reply.type, &request->reply.type)
|
|
|| __get_user(req32.reply.sequence, &request->reply.sequence)
|
|
|| __get_user(req32.reply.tval_sec, &request->reply.tval_sec)
|
|
|| __get_user(req32.reply.tval_usec, &request->reply.tval_usec))
|
|
return -EFAULT;
|
|
|
|
if (copy_to_user(argp, &req32, sizeof(req32)))
|
|
return -EFAULT;
|
|
|
|
return 0;
|
|
}
|
|
|
|
drm_ioctl_compat_t *drm_compat_ioctls[] = {
|
|
[DRM_IOCTL_NR(DRM_IOCTL_VERSION32)] = compat_drm_version,
|
|
[DRM_IOCTL_NR(DRM_IOCTL_GET_UNIQUE32)] = compat_drm_getunique,
|
|
[DRM_IOCTL_NR(DRM_IOCTL_GET_MAP32)] = compat_drm_getmap,
|
|
[DRM_IOCTL_NR(DRM_IOCTL_GET_CLIENT32)] = compat_drm_getclient,
|
|
[DRM_IOCTL_NR(DRM_IOCTL_GET_STATS32)] = compat_drm_getstats,
|
|
[DRM_IOCTL_NR(DRM_IOCTL_SET_UNIQUE32)] = compat_drm_setunique,
|
|
[DRM_IOCTL_NR(DRM_IOCTL_ADD_MAP32)] = compat_drm_addmap,
|
|
[DRM_IOCTL_NR(DRM_IOCTL_ADD_BUFS32)] = compat_drm_addbufs,
|
|
[DRM_IOCTL_NR(DRM_IOCTL_MARK_BUFS32)] = compat_drm_markbufs,
|
|
[DRM_IOCTL_NR(DRM_IOCTL_INFO_BUFS32)] = compat_drm_infobufs,
|
|
[DRM_IOCTL_NR(DRM_IOCTL_MAP_BUFS32)] = compat_drm_mapbufs,
|
|
[DRM_IOCTL_NR(DRM_IOCTL_FREE_BUFS32)] = compat_drm_freebufs,
|
|
[DRM_IOCTL_NR(DRM_IOCTL_RM_MAP32)] = compat_drm_rmmap,
|
|
[DRM_IOCTL_NR(DRM_IOCTL_SET_SAREA_CTX32)] = compat_drm_setsareactx,
|
|
[DRM_IOCTL_NR(DRM_IOCTL_GET_SAREA_CTX32)] = compat_drm_getsareactx,
|
|
[DRM_IOCTL_NR(DRM_IOCTL_RES_CTX32)] = compat_drm_resctx,
|
|
[DRM_IOCTL_NR(DRM_IOCTL_DMA32)] = compat_drm_dma,
|
|
#if __OS_HAS_AGP
|
|
[DRM_IOCTL_NR(DRM_IOCTL_AGP_ENABLE32)] = compat_drm_agp_enable,
|
|
[DRM_IOCTL_NR(DRM_IOCTL_AGP_INFO32)] = compat_drm_agp_info,
|
|
[DRM_IOCTL_NR(DRM_IOCTL_AGP_ALLOC32)] = compat_drm_agp_alloc,
|
|
[DRM_IOCTL_NR(DRM_IOCTL_AGP_FREE32)] = compat_drm_agp_free,
|
|
[DRM_IOCTL_NR(DRM_IOCTL_AGP_BIND32)] = compat_drm_agp_bind,
|
|
[DRM_IOCTL_NR(DRM_IOCTL_AGP_UNBIND32)] = compat_drm_agp_unbind,
|
|
#endif
|
|
[DRM_IOCTL_NR(DRM_IOCTL_SG_ALLOC32)] = compat_drm_sg_alloc,
|
|
[DRM_IOCTL_NR(DRM_IOCTL_SG_FREE32)] = compat_drm_sg_free,
|
|
[DRM_IOCTL_NR(DRM_IOCTL_WAIT_VBLANK32)] = compat_drm_wait_vblank,
|
|
};
|
|
|
|
/**
|
|
* Called whenever a 32-bit process running under a 64-bit kernel
|
|
* performs an ioctl on /dev/drm.
|
|
*
|
|
* \param filp file pointer.
|
|
* \param cmd command.
|
|
* \param arg user argument.
|
|
* \return zero on success or negative number on failure.
|
|
*/
|
|
long drm_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
|
|
{
|
|
unsigned int nr = DRM_IOCTL_NR(cmd);
|
|
drm_ioctl_compat_t *fn;
|
|
int ret;
|
|
|
|
if (nr >= ARRAY_SIZE(drm_compat_ioctls))
|
|
return -ENOTTY;
|
|
|
|
fn = drm_compat_ioctls[nr];
|
|
|
|
lock_kernel(); /* XXX for now */
|
|
if (fn != NULL)
|
|
ret = (*fn) (filp, cmd, arg);
|
|
else
|
|
ret = drm_ioctl(filp->f_path.dentry->d_inode, filp, cmd, arg);
|
|
unlock_kernel();
|
|
|
|
return ret;
|
|
}
|
|
|
|
EXPORT_SYMBOL(drm_compat_ioctl);
|