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path: root/drivers/char/drm/mga_ioc32.c
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Diffstat (limited to 'drivers/char/drm/mga_ioc32.c')
-rw-r--r--drivers/char/drm/mga_ioc32.c231
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 30d00478dde..00000000000
--- 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;
-}