diff options
Diffstat (limited to 'drivers/gpu/drm/mga/mga_ioc32.c')
-rw-r--r-- | drivers/gpu/drm/mga/mga_ioc32.c | 197 |
1 files changed, 0 insertions, 197 deletions
diff --git a/drivers/gpu/drm/mga/mga_ioc32.c b/drivers/gpu/drm/mga/mga_ioc32.c deleted file mode 100644 index 894472921c30..000000000000 --- a/drivers/gpu/drm/mga/mga_ioc32.c +++ /dev/null @@ -1,197 +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 "mga_drv.h" - -typedef struct drm32_mga_init { - int func; - u32 sarea_priv_offset; - struct_group(always32bit, - 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 init; - - if (copy_from_user(&init32, (void __user *)arg, sizeof(init32))) - return -EFAULT; - - init.func = init32.func; - init.sarea_priv_offset = init32.sarea_priv_offset; - memcpy(&init.always32bit, &init32.always32bit, - sizeof(init32.always32bit)); - init.fb_offset = init32.fb_offset; - init.mmio_offset = init32.mmio_offset; - init.status_offset = init32.status_offset; - init.warp_offset = init32.warp_offset; - init.primary_offset = init32.primary_offset; - init.buffers_offset = init32.buffers_offset; - - return drm_ioctl_kernel(file, mga_dma_init, &init, - DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY); -} - -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 getparam; - - if (copy_from_user(&getparam32, (void __user *)arg, sizeof(getparam32))) - return -EFAULT; - - getparam.param = getparam32.param; - getparam.value = compat_ptr(getparam32.value); - return drm_ioctl_kernel(file, mga_getparam, &getparam, DRM_AUTH); -} - -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 dma_bootstrap; - int err; - - if (copy_from_user(&dma_bootstrap32, (void __user *)arg, - sizeof(dma_bootstrap32))) - return -EFAULT; - - dma_bootstrap.texture_handle = dma_bootstrap32.texture_handle; - dma_bootstrap.texture_size = dma_bootstrap32.texture_size; - dma_bootstrap.primary_size = dma_bootstrap32.primary_size; - dma_bootstrap.secondary_bin_count = dma_bootstrap32.secondary_bin_count; - dma_bootstrap.secondary_bin_size = dma_bootstrap32.secondary_bin_size; - dma_bootstrap.agp_mode = dma_bootstrap32.agp_mode; - dma_bootstrap.agp_size = dma_bootstrap32.agp_size; - - err = drm_ioctl_kernel(file, mga_dma_bootstrap, &dma_bootstrap, - DRM_AUTH|DRM_MASTER|DRM_ROOT_ONLY); - if (err) - return err; - - dma_bootstrap32.texture_handle = dma_bootstrap.texture_handle; - dma_bootstrap32.texture_size = dma_bootstrap.texture_size; - dma_bootstrap32.primary_size = dma_bootstrap.primary_size; - dma_bootstrap32.secondary_bin_count = dma_bootstrap.secondary_bin_count; - dma_bootstrap32.secondary_bin_size = dma_bootstrap.secondary_bin_size; - dma_bootstrap32.agp_mode = dma_bootstrap.agp_mode; - dma_bootstrap32.agp_size = dma_bootstrap.agp_size; - if (copy_to_user((void __user *)arg, &dma_bootstrap32, - sizeof(dma_bootstrap32))) - return -EFAULT; - - return 0; -} - -static struct { - drm_ioctl_compat_t *fn; - char *name; -} mga_compat_ioctls[] = { -#define DRM_IOCTL32_DEF(n, f)[DRM_##n] = {.fn = f, .name = #n} - DRM_IOCTL32_DEF(MGA_INIT, compat_mga_init), - DRM_IOCTL32_DEF(MGA_GETPARAM, compat_mga_getparam), - DRM_IOCTL32_DEF(MGA_DMA_BOOTSTRAP, compat_mga_dma_bootstrap), -}; - -/** - * mga_compat_ioctl - Called whenever a 32-bit process running under - * a 64-bit kernel performs an ioctl on /dev/dri/card<n>. - * - * @filp: file pointer. - * @cmd: command. - * @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); - struct drm_file *file_priv = filp->private_data; - 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 + ARRAY_SIZE(mga_compat_ioctls)) - return drm_ioctl(filp, cmd, arg); - - fn = mga_compat_ioctls[nr - DRM_COMMAND_BASE].fn; - if (!fn) - return drm_ioctl(filp, cmd, arg); - - DRM_DEBUG("pid=%d, dev=0x%lx, auth=%d, %s\n", - task_pid_nr(current), - (long)old_encode_dev(file_priv->minor->kdev->devt), - file_priv->authenticated, - mga_compat_ioctls[nr - DRM_COMMAND_BASE].name); - ret = (*fn) (filp, cmd, arg); - if (ret) - DRM_DEBUG("ret = %d\n", ret); - return ret; -} |