diff options
Diffstat (limited to 'drivers/char/drm/r128_ioc32.c')
-rw-r--r-- | drivers/char/drm/r128_ioc32.c | 221 |
1 files changed, 0 insertions, 221 deletions
diff --git a/drivers/char/drm/r128_ioc32.c b/drivers/char/drm/r128_ioc32.c deleted file mode 100644 index d3cb676eee8..00000000000 --- a/drivers/char/drm/r128_ioc32.c +++ /dev/null @@ -1,221 +0,0 @@ -/** - * \file r128_ioc32.c - * - * 32-bit ioctl compatibility routines for the R128 DRM. - * - * \author Dave Airlie <airlied@linux.ie> with code from patches by Egbert Eich - * - * Copyright (C) Paul Mackerras 2005 - * Copyright (C) Egbert Eich 2003,2004 - * Copyright (C) Dave Airlie 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 - * the rights to use, copy, modify, merge, publish, distribute, sublicense, - * 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 NONINFRINGEMENT. IN NO EVENT SHALL - * THE AUTHOR 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. - */ -#include <linux/compat.h> - -#include "drmP.h" -#include "drm.h" -#include "r128_drm.h" - -typedef struct drm_r128_init32 { - int func; - unsigned int sarea_priv_offset; - int is_pci; - int cce_mode; - int cce_secure; - int ring_size; - int usec_timeout; - - unsigned int fb_bpp; - unsigned int front_offset, front_pitch; - unsigned int back_offset, back_pitch; - unsigned int depth_bpp; - unsigned int depth_offset, depth_pitch; - unsigned int span_offset; - - unsigned int fb_offset; - unsigned int mmio_offset; - unsigned int ring_offset; - unsigned int ring_rptr_offset; - unsigned int buffers_offset; - unsigned int agp_textures_offset; -} drm_r128_init32_t; - -static int compat_r128_init(struct file *file, unsigned int cmd, - unsigned long arg) -{ - drm_r128_init32_t init32; - drm_r128_init_t __user *init; - - if (copy_from_user(&init32, (void __user *)arg, sizeof(init32))) - return -EFAULT; - - init = compat_alloc_user_space(sizeof(*init)); - if (!access_ok(VERIFY_WRITE, init, sizeof(*init)) - || __put_user(init32.func, &init->func) - || __put_user(init32.sarea_priv_offset, &init->sarea_priv_offset) - || __put_user(init32.is_pci, &init->is_pci) - || __put_user(init32.cce_mode, &init->cce_mode) - || __put_user(init32.cce_secure, &init->cce_secure) - || __put_user(init32.ring_size, &init->ring_size) - || __put_user(init32.usec_timeout, &init->usec_timeout) - || __put_user(init32.fb_bpp, &init->fb_bpp) - || __put_user(init32.front_offset, &init->front_offset) - || __put_user(init32.front_pitch, &init->front_pitch) - || __put_user(init32.back_offset, &init->back_offset) - || __put_user(init32.back_pitch, &init->back_pitch) - || __put_user(init32.depth_bpp, &init->depth_bpp) - || __put_user(init32.depth_offset, &init->depth_offset) - || __put_user(init32.depth_pitch, &init->depth_pitch) - || __put_user(init32.span_offset, &init->span_offset) - || __put_user(init32.fb_offset, &init->fb_offset) - || __put_user(init32.mmio_offset, &init->mmio_offset) - || __put_user(init32.ring_offset, &init->ring_offset) - || __put_user(init32.ring_rptr_offset, &init->ring_rptr_offset) - || __put_user(init32.buffers_offset, &init->buffers_offset) - || __put_user(init32.agp_textures_offset, - &init->agp_textures_offset)) - return -EFAULT; - - return drm_ioctl(file->f_path.dentry->d_inode, file, - DRM_IOCTL_R128_INIT, (unsigned long)init); -} - -typedef struct drm_r128_depth32 { - int func; - int n; - u32 x; - u32 y; - u32 buffer; - u32 mask; -} drm_r128_depth32_t; - -static int compat_r128_depth(struct file *file, unsigned int cmd, - unsigned long arg) -{ - drm_r128_depth32_t depth32; - drm_r128_depth_t __user *depth; - - if (copy_from_user(&depth32, (void __user *)arg, sizeof(depth32))) - return -EFAULT; - - depth = compat_alloc_user_space(sizeof(*depth)); - if (!access_ok(VERIFY_WRITE, depth, sizeof(*depth)) - || __put_user(depth32.func, &depth->func) - || __put_user(depth32.n, &depth->n) - || __put_user((int __user *)(unsigned long)depth32.x, &depth->x) - || __put_user((int __user *)(unsigned long)depth32.y, &depth->y) - || __put_user((unsigned int __user *)(unsigned long)depth32.buffer, - &depth->buffer) - || __put_user((unsigned char __user *)(unsigned long)depth32.mask, - &depth->mask)) - return -EFAULT; - - return drm_ioctl(file->f_path.dentry->d_inode, file, - DRM_IOCTL_R128_DEPTH, (unsigned long)depth); - -} - -typedef struct drm_r128_stipple32 { - u32 mask; -} drm_r128_stipple32_t; - -static int compat_r128_stipple(struct file *file, unsigned int cmd, - unsigned long arg) -{ - drm_r128_stipple32_t stipple32; - drm_r128_stipple_t __user *stipple; - - if (copy_from_user(&stipple32, (void __user *)arg, sizeof(stipple32))) - return -EFAULT; - - stipple = compat_alloc_user_space(sizeof(*stipple)); - if (!access_ok(VERIFY_WRITE, stipple, sizeof(*stipple)) - || __put_user((unsigned int __user *)(unsigned long)stipple32.mask, - &stipple->mask)) - return -EFAULT; - - return drm_ioctl(file->f_path.dentry->d_inode, file, - DRM_IOCTL_R128_STIPPLE, (unsigned long)stipple); -} - -typedef struct drm_r128_getparam32 { - int param; - u32 value; -} drm_r128_getparam32_t; - -static int compat_r128_getparam(struct file *file, unsigned int cmd, - unsigned long arg) -{ - drm_r128_getparam32_t getparam32; - drm_r128_getparam_t __user *getparam; - - if (copy_from_user(&getparam32, (void __user *)arg, sizeof(getparam32))) - return -EFAULT; - - getparam = compat_alloc_user_space(sizeof(*getparam)); - if (!access_ok(VERIFY_WRITE, getparam, sizeof(*getparam)) - || __put_user(getparam32.param, &getparam->param) - || __put_user((void __user *)(unsigned long)getparam32.value, - &getparam->value)) - return -EFAULT; - - return drm_ioctl(file->f_path.dentry->d_inode, file, - DRM_IOCTL_R128_GETPARAM, (unsigned long)getparam); -} - -drm_ioctl_compat_t *r128_compat_ioctls[] = { - [DRM_R128_INIT] = compat_r128_init, - [DRM_R128_DEPTH] = compat_r128_depth, - [DRM_R128_STIPPLE] = compat_r128_stipple, - [DRM_R128_GETPARAM] = compat_r128_getparam, -}; - -/** - * 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 r128_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg) -{ - 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(r128_compat_ioctls)) - fn = r128_compat_ioctls[nr - DRM_COMMAND_BASE]; - - 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; -} |