diff options
Diffstat (limited to 'linux-core/xgi_ioc32.c')
| -rw-r--r-- | linux-core/xgi_ioc32.c | 140 |
1 files changed, 0 insertions, 140 deletions
diff --git a/linux-core/xgi_ioc32.c b/linux-core/xgi_ioc32.c deleted file mode 100644 index e4338417..00000000 --- a/linux-core/xgi_ioc32.c +++ /dev/null @@ -1,140 +0,0 @@ -/* - * (C) Copyright IBM Corporation 2007 - * Copyright (C) Paul Mackerras 2005. - * All Rights Reserved. - * - * Permission is hereby granted, free of charge, to any person obtaining a - * copy of this software and associated documentation files (the "Software"), - * to deal in the Software without restriction, including without limitation - * on the rights to use, copy, modify, merge, publish, distribute, sub - * license, and/or sell copies of the Software, and to permit persons to whom - * the Software is furnished to do so, subject to the following conditions: - * - * The above copyright notice and this permission notice (including the next - * paragraph) shall be included in all copies or substantial portions of the - * Software. - * - * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR - * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT. IN NO EVENT SHALL - * THE AUTHORS AND/OR THEIR SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR - * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, - * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR - * OTHER DEALINGS IN THE SOFTWARE. - * - * Authors: - * Ian Romanick <idr@us.ibm.com> - */ - -#include <linux/compat.h> - -#include "drmP.h" -#include "drm.h" - -#include "xgi_drm.h" - -/* This is copied from drm_ioc32.c. - */ -struct drm_map32 { - u32 offset; /**< Requested physical address (0 for SAREA)*/ - u32 size; /**< Requested physical size (bytes) */ - enum drm_map_type type; /**< Type of memory to map */ - enum drm_map_flags flags; /**< Flags */ - u32 handle; /**< User-space: "Handle" to pass to mmap() */ - int mtrr; /**< MTRR slot used */ -}; - -struct drm32_xgi_bootstrap { - struct drm_map32 gart; -}; - - -extern int xgi_bootstrap(struct drm_device *, void *, struct drm_file *); - -static int compat_xgi_bootstrap(struct file *filp, unsigned int cmd, - unsigned long arg) -{ - struct drm32_xgi_bootstrap __user *const argp = (void __user *)arg; - struct drm32_xgi_bootstrap bs32; - struct xgi_bootstrap __user *bs; - int err; - void *handle; - - - if (copy_from_user(&bs32, argp, sizeof(bs32))) { - return -EFAULT; - } - - bs = compat_alloc_user_space(sizeof(*bs)); - if (!access_ok(VERIFY_WRITE, bs, sizeof(*bs))) { - return -EFAULT; - } - - if (__put_user(bs32.gart.offset, &bs->gart.offset) - || __put_user(bs32.gart.size, &bs->gart.size) - || __put_user(bs32.gart.type, &bs->gart.type) - || __put_user(bs32.gart.flags, &bs->gart.flags)) { - return -EFAULT; - } - - err = drm_ioctl(filp->f_dentry->d_inode, filp, XGI_IOCTL_BOOTSTRAP, - (unsigned long)bs); - if (err) { - return err; - } - - if (__get_user(bs32.gart.offset, &bs->gart.offset) - || __get_user(bs32.gart.mtrr, &bs->gart.mtrr) - || __get_user(handle, &bs->gart.handle)) { - return -EFAULT; - } - - bs32.gart.handle = (unsigned long)handle; - if (bs32.gart.handle != (unsigned long)handle && printk_ratelimit()) { - printk(KERN_ERR "%s truncated handle %p for type %d " - "offset %x\n", - __func__, handle, bs32.gart.type, bs32.gart.offset); - } - - if (copy_to_user(argp, &bs32, sizeof(bs32))) { - return -EFAULT; - } - - return 0; -} - - -drm_ioctl_compat_t *xgi_compat_ioctls[] = { - [DRM_XGI_BOOTSTRAP] = compat_xgi_bootstrap, -}; - -/** - * Called whenever a 32-bit process running under a 64-bit kernel - * performs an ioctl on /dev/dri/card<n>. - * - * \param filp file pointer. - * \param cmd command. - * \param arg user argument. - * \return zero on success or negative number on failure. - */ -long xgi_compat_ioctl(struct file *filp, unsigned int cmd, - unsigned long arg) -{ - const unsigned int nr = DRM_IOCTL_NR(cmd); - drm_ioctl_compat_t *fn = NULL; - int ret; - - if (nr < DRM_COMMAND_BASE) - return drm_compat_ioctl(filp, cmd, arg); - - if (nr < DRM_COMMAND_BASE + DRM_ARRAY_SIZE(xgi_compat_ioctls)) - fn = xgi_compat_ioctls[nr - DRM_COMMAND_BASE]; - - lock_kernel(); - ret = (fn != NULL) - ? (*fn)(filp, cmd, arg) - : drm_ioctl(filp->f_dentry->d_inode, filp, cmd, arg); - unlock_kernel(); - - return ret; -} |