diff options
Diffstat (limited to 'drivers/char/drm/mga_ioc32.c')
-rw-r--r-- | drivers/char/drm/mga_ioc32.c | 231 |
1 files changed, 0 insertions, 231 deletions
diff --git a/drivers/char/drm/mga_ioc32.c b/drivers/char/drm/mga_ioc32.c deleted file mode 100644 index 30d0047..0000000 --- a/drivers/char/drm/mga_ioc32.c +++ /dev/null @@ -1,231 +0,0 @@ -/** - * \file mga_ioc32.c - * - * 32-bit ioctl compatibility routines for the MGA 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 "mga_drm.h" - -typedef struct drm32_mga_init { - int func; - u32 sarea_priv_offset; - int chipset; - int sgram; - unsigned int maccess; - unsigned int fb_cpp; - unsigned int front_offset, front_pitch; - unsigned int back_offset, back_pitch; - unsigned int depth_cpp; - unsigned int depth_offset, depth_pitch; - unsigned int texture_offset[MGA_NR_TEX_HEAPS]; - unsigned int texture_size[MGA_NR_TEX_HEAPS]; - u32 fb_offset; - u32 mmio_offset; - u32 status_offset; - u32 warp_offset; - u32 primary_offset; - u32 buffers_offset; -} drm_mga_init32_t; - -static int compat_mga_init(struct file *file, unsigned int cmd, - unsigned long arg) -{ - drm_mga_init32_t init32; - drm_mga_init_t __user *init; - int err = 0, i; - - 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.chipset, &init->chipset) - || __put_user(init32.sgram, &init->sgram) - || __put_user(init32.maccess, &init->maccess) - || __put_user(init32.fb_cpp, &init->fb_cpp) - || __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_cpp, &init->depth_cpp) - || __put_user(init32.depth_offset, &init->depth_offset) - || __put_user(init32.depth_pitch, &init->depth_pitch) - || __put_user(init32.fb_offset, &init->fb_offset) - || __put_user(init32.mmio_offset, &init->mmio_offset) - || __put_user(init32.status_offset, &init->status_offset) - || __put_user(init32.warp_offset, &init->warp_offset) - || __put_user(init32.primary_offset, &init->primary_offset) - || __put_user(init32.buffers_offset, &init->buffers_offset)) - return -EFAULT; - - for (i = 0; i < MGA_NR_TEX_HEAPS; i++) { - err |= - __put_user(init32.texture_offset[i], - &init->texture_offset[i]); - err |= - __put_user(init32.texture_size[i], &init->texture_size[i]); - } - if (err) - return -EFAULT; - - return drm_ioctl(file->f_path.dentry->d_inode, file, - DRM_IOCTL_MGA_INIT, (unsigned long)init); -} - -typedef struct drm_mga_getparam32 { - int param; - u32 value; -} drm_mga_getparam32_t; - -static int compat_mga_getparam(struct file *file, unsigned int cmd, - unsigned long arg) -{ - drm_mga_getparam32_t getparam32; - drm_mga_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_MGA_GETPARAM, (unsigned long)getparam); -} - -typedef struct drm_mga_drm_bootstrap32 { - u32 texture_handle; - u32 texture_size; - u32 primary_size; - u32 secondary_bin_count; - u32 secondary_bin_size; - u32 agp_mode; - u8 agp_size; -} drm_mga_dma_bootstrap32_t; - -static int compat_mga_dma_bootstrap(struct file *file, unsigned int cmd, - unsigned long arg) -{ - drm_mga_dma_bootstrap32_t dma_bootstrap32; - drm_mga_dma_bootstrap_t __user *dma_bootstrap; - int err; - - if (copy_from_user(&dma_bootstrap32, (void __user *)arg, - sizeof(dma_bootstrap32))) - return -EFAULT; - - dma_bootstrap = compat_alloc_user_space(sizeof(*dma_bootstrap)); - if (!access_ok(VERIFY_WRITE, dma_bootstrap, sizeof(*dma_bootstrap)) - || __put_user(dma_bootstrap32.texture_handle, - &dma_bootstrap->texture_handle) - || __put_user(dma_bootstrap32.texture_size, - &dma_bootstrap->texture_size) - || __put_user(dma_bootstrap32.primary_size, - &dma_bootstrap->primary_size) - || __put_user(dma_bootstrap32.secondary_bin_count, - &dma_bootstrap->secondary_bin_count) - || __put_user(dma_bootstrap32.secondary_bin_size, - &dma_bootstrap->secondary_bin_size) - || __put_user(dma_bootstrap32.agp_mode, &dma_bootstrap->agp_mode) - || __put_user(dma_bootstrap32.agp_size, &dma_bootstrap->agp_size)) - return -EFAULT; - - err = drm_ioctl(file->f_path.dentry->d_inode, file, - DRM_IOCTL_MGA_DMA_BOOTSTRAP, - (unsigned long)dma_bootstrap); - if (err) - return err; - - if (__get_user(dma_bootstrap32.texture_handle, - &dma_bootstrap->texture_handle) - || __get_user(dma_bootstrap32.texture_size, - &dma_bootstrap->texture_size) - || __get_user(dma_bootstrap32.primary_size, - &dma_bootstrap->primary_size) - || __get_user(dma_bootstrap32.secondary_bin_count, - &dma_bootstrap->secondary_bin_count) - || __get_user(dma_bootstrap32.secondary_bin_size, - &dma_bootstrap->secondary_bin_size) - || __get_user(dma_bootstrap32.agp_mode, &dma_bootstrap->agp_mode) - || __get_user(dma_bootstrap32.agp_size, &dma_bootstrap->agp_size)) - return -EFAULT; - - if (copy_to_user((void __user *)arg, &dma_bootstrap32, - sizeof(dma_bootstrap32))) - return -EFAULT; - - return 0; -} - -drm_ioctl_compat_t *mga_compat_ioctls[] = { - [DRM_MGA_INIT] = compat_mga_init, - [DRM_MGA_GETPARAM] = compat_mga_getparam, - [DRM_MGA_DMA_BOOTSTRAP] = compat_mga_dma_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 mga_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(mga_compat_ioctls)) - fn = mga_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; -} |