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drm/vmwgfx: Fix unlocked ioctl and add proper access control 

This fixes up vmwgfx for the unlocked ioctl code to avoid
doing it in the driver. Also adds ioctl flags.

Signed-off-by: Thomas Hellstrom <thellstrom@vmware.com>
Signed-off-by: Jakob Bornecrantz <jakob@vmware.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Thomas Hellstrom 2009-12-08 12:57:51 +01:00 коммит произвёл Dave Airlie
Родитель 794f3141a1
Коммит e1f7800315
1 изменённых файлов: 19 добавлений и 28 удалений
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47
drivers/gpu/drm/vmwgfx/vmwgfx_drv.c
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@ -103,37 +103,39 @@
*/
static struct drm_ioctl_desc vmw_ioctls[] = {
VMW_IOCTL_DEF(DRM_IOCTL_VMW_GET_PARAM, vmw_getparam_ioctl, 0),
VMW_IOCTL_DEF(DRM_IOCTL_VMW_GET_PARAM, vmw_getparam_ioctl,
DRM_AUTH | DRM_UNLOCKED),
VMW_IOCTL_DEF(DRM_IOCTL_VMW_ALLOC_DMABUF, vmw_dmabuf_alloc_ioctl,
0),
DRM_AUTH | DRM_UNLOCKED),
VMW_IOCTL_DEF(DRM_IOCTL_VMW_UNREF_DMABUF, vmw_dmabuf_unref_ioctl,
0),
DRM_AUTH | DRM_UNLOCKED),
VMW_IOCTL_DEF(DRM_IOCTL_VMW_CURSOR_BYPASS,
vmw_kms_cursor_bypass_ioctl, 0),
vmw_kms_cursor_bypass_ioctl,
DRM_MASTER | DRM_CONTROL_ALLOW | DRM_UNLOCKED),
VMW_IOCTL_DEF(DRM_IOCTL_VMW_CONTROL_STREAM, vmw_overlay_ioctl,
0),
DRM_MASTER | DRM_CONTROL_ALLOW | DRM_UNLOCKED),
VMW_IOCTL_DEF(DRM_IOCTL_VMW_CLAIM_STREAM, vmw_stream_claim_ioctl,
0),
DRM_MASTER | DRM_CONTROL_ALLOW | DRM_UNLOCKED),
VMW_IOCTL_DEF(DRM_IOCTL_VMW_UNREF_STREAM, vmw_stream_unref_ioctl,
0),
DRM_MASTER | DRM_CONTROL_ALLOW | DRM_UNLOCKED),
VMW_IOCTL_DEF(DRM_IOCTL_VMW_CREATE_CONTEXT, vmw_context_define_ioctl,
0),
DRM_AUTH | DRM_UNLOCKED),
VMW_IOCTL_DEF(DRM_IOCTL_VMW_UNREF_CONTEXT, vmw_context_destroy_ioctl,
0),
DRM_AUTH | DRM_UNLOCKED),
VMW_IOCTL_DEF(DRM_IOCTL_VMW_CREATE_SURFACE, vmw_surface_define_ioctl,
0),
DRM_AUTH | DRM_UNLOCKED),
VMW_IOCTL_DEF(DRM_IOCTL_VMW_UNREF_SURFACE, vmw_surface_destroy_ioctl,
0),
DRM_AUTH | DRM_UNLOCKED),
VMW_IOCTL_DEF(DRM_IOCTL_VMW_REF_SURFACE, vmw_surface_reference_ioctl,
0),
DRM_AUTH | DRM_UNLOCKED),
VMW_IOCTL_DEF(DRM_IOCTL_VMW_EXECBUF, vmw_execbuf_ioctl,
0),
DRM_AUTH | DRM_UNLOCKED),
VMW_IOCTL_DEF(DRM_IOCTL_VMW_FIFO_DEBUG, vmw_fifo_debug_ioctl,
0),
DRM_AUTH | DRM_ROOT_ONLY | DRM_MASTER | DRM_UNLOCKED),
VMW_IOCTL_DEF(DRM_IOCTL_VMW_FENCE_WAIT, vmw_fence_wait_ioctl,
0)
DRM_AUTH | DRM_UNLOCKED)
};
static struct pci_device_id vmw_pci_id_list[] = {
@ -460,11 +462,9 @@ static long vmw_unlocked_ioctl(struct file *filp, unsigned int cmd,
struct drm_file *file_priv = filp->private_data;
struct drm_device *dev = file_priv->minor->dev;
unsigned int nr = DRM_IOCTL_NR(cmd);
long ret;
/*
* The driver private ioctls and TTM ioctls should be
* thread-safe.
* Do extra checking on driver private ioctls.
*/
if ((nr >= DRM_COMMAND_BASE) && (nr < DRM_COMMAND_END)
@ -477,18 +477,9 @@ static long vmw_unlocked_ioctl(struct file *filp, unsigned int cmd,
nr - DRM_COMMAND_BASE);
return -EINVAL;
}
return drm_ioctl(filp->f_path.dentry->d_inode,
filp, cmd, arg);
}
/*
* Not all old drm ioctls are thread-safe.
*/
lock_kernel();
ret = drm_ioctl(filp->f_path.dentry->d_inode, filp, cmd, arg);
unlock_kernel();
return ret;
return drm_ioctl(filp, cmd, arg);
}
static int vmw_firstopen(struct drm_device *dev)