index : renesas/drm.git	android live master
	libdrm, cloned from git://anongit.freedesktop.org/mesa/drm	Laurent Pinchart

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path: root/linux-core/drm_ioc32.c

blob: 8087a963639922e3e15a625332a2330c38a99f82 (plain)

258</* mach64_drm.h -- Public header for the mach64 driver -*- linux-c -*- * Created: Thu Nov 30 20:04:32 2000 by gareth@valinux.com */ /* * Copyright 2000 Gareth Hughes * Copyright 2002 Frank C. Earl * Copyright 2002-2003 Leif Delgass * 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 COPYRIGHT OWNER(S) 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. * * Authors: * Gareth Hughes <gareth@valinux.com> * Frank C. Earl <fearl@airmail.net> * Leif Delgass <ldelgass@retinalburn.net> */ #ifndef __MACH64_DRM_H__ #define __MACH64_DRM_H__ /* WARNING: If you change any of these defines, make sure to change the * defines in the Xserver file (mach64_sarea.h) */ #ifndef __MACH64_SAREA_DEFINES__ #define __MACH64_SAREA_DEFINES__ /* What needs to be changed for the current vertex buffer? * GH: We're going to be pedantic about this. We want the card to do as * little as possible, so let's avoid having it fetch a whole bunch of * register values that don't change all that often, if at all. */ #define MACH64_UPLOAD_DST_OFF_PITCH 0x0001 #define MACH64_UPLOAD_Z_OFF_PITCH 0x0002 #define MACH64_UPLOAD_Z_ALPHA_CNTL 0x0004 #define MACH64_UPLOAD_SCALE_3D_CNTL 0x0008 #define MACH64_UPLOAD_DP_FOG_CLR 0x0010 #define MACH64_UPLOAD_DP_WRITE_MASK 0x0020 #define MACH64_UPLOAD_DP_PIX_WIDTH 0x0040 #define MACH64_UPLOAD_SETUP_CNTL 0x0080 #define MACH64_UPLOAD_MISC 0x0100 #define MACH64_UPLOAD_TEXTURE 0x0200 #define MACH64_UPLOAD_TEX0IMAGE 0x0400 #define MACH64_UPLOAD_TEX1IMAGE 0x0800 #define MACH64_UPLOAD_CLIPRECTS 0x1000 /* handled client-side */ #define MACH64_UPLOAD_CONTEXT 0x00ff #define MACH64_UPLOAD_ALL 0x1fff /* DMA buffer size */ #define MACH64_BUFFER_SIZE 16384 /* Max number of swaps allowed on the ring * before the client must wait */ #define MACH64_MAX_QUEUED_FRAMES 3U /* Byte offsets for host blit buffer data */ #define MACH64_HOSTDATA_BLIT_OFFSET 104 /* Keep these small for testing. */ #define MACH64_NR_SAREA_CLIPRECTS 8 #define MACH64_CARD_HEAP 0 #define MACH64_AGP_HEAP 1 #define MACH64_NR_TEX_HEAPS 2 #define MACH64_NR_TEX_REGIONS 64 #define MACH64_LOG_TEX_GRANULARITY 16 #define MACH64_TEX_MAXLEVELS 1 #define MACH64_NR_CONTEXT_REGS 15 #define MACH64_NR_TEXTURE_REGS 4 #endif /* __MACH64_SAREA_DEFINES__ */ typedef struct { unsigned int dst_off_pitch; unsigned int z_off_pitch; unsigned int z_cntl; unsigned int alpha_tst_cntl; unsigned int scale_3d_cntl; unsigned int sc_left_right; unsigned int sc_top_bottom; unsigned int dp_fog_clr; unsigned int dp_write_mask; unsigned int dp_pix_width; unsigned int dp_mix; unsigned int dp_src; unsigned int clr_cmp_cntl; unsigned int gui_traj_cntl; unsigned int setup_cntl; unsigned int tex_size_pitch; unsigned int tex_cntl; unsigned int secondary_tex_off; unsigned int tex_offset; } drm_mach64_context_regs_t; typedef struct drm_mach64_sarea { /* The channel for communication of state information to the kernel * on firing a vertex dma buffer. */ drm_mach64_context_regs_t context_state; unsigned int dirty; unsigned int vertsize; /* The current cliprects, or a subset thereof. */ struct drm_clip_rect boxes[MACH64_NR_SAREA_CLIPRECTS]; unsigned int nbox; /* Counters for client-side throttling of rendering clients. */ unsigned int frames_queued; /* Texture memory LRU. */ struct drm_tex_region tex_list[MACH64_NR_TEX_HEAPS][MACH64_NR_TEX_REGIONS + 1]; unsigned int tex_age[MACH64_NR_TEX_HEAPS]; int ctx_owner; } drm_mach64_sarea_t; /* WARNING: If you change any of these defines, make sure to change the * defines in the Xserver file (mach64_common.h) */ /* Mach64 specific ioctls * The device specific ioctl range is 0x40 to 0x79. */ #define DRM_MACH64_INIT 0x00 #define DRM_MACH64_IDLE 0x01 #define DRM_MACH64_RESET 0x02 #define DRM_MACH64_SWAP 0x03 #define DRM_MACH64_CLEAR 0x04 #define DRM_MACH64_VERTEX 0x05 #define DRM_MACH64_BLIT 0x06 #define DRM_MACH64_FLUSH 0x07 #define DRM_MACH64_GETPARAM 0x08 #define DRM_IOCTL_MACH64_INIT DRM_IOW( DRM_COMMAND_BASE + DRM_MACH64_INIT, drm_mach64_init_t) #define DRM_IOCTL_MACH64_IDLE DRM_IO( DRM_COMMAND_BASE + DRM_MACH64_IDLE ) #define DRM_IOCTL_MACH64_RESET DRM_IO( DRM_COMMAND_BASE + DRM_MACH64_RESET ) #define DRM_IOCTL_MACH64_SWAP DRM_IO( DRM_COMMAND_BASE + DRM_MACH64_SWAP ) #define DRM_IOCTL_MACH64_CLEAR DRM_IOW( DRM_COMMAND_BASE + DRM_MACH64_CLEAR, drm_mach64_clear_t) #define DRM_IOCTL_MACH64_VERTEX DRM_IOW( DRM_COMMAND_BASE + DRM_MACH64_VERTEX, drm_mach64_vertex_t) #define DRM_IOCTL_MACH64_BLIT DRM_IOW( DRM_COMMAND_BASE + DRM_MACH64_BLIT, drm_mach64_blit_t) #define DRM_IOCTL_MACH64_FLUSH DRM_IO( DRM_COMMAND_BASE + DRM_MACH64_FLUSH ) #define DRM_IOCTL_MACH64_GETPARAM DRM_IOWR( DRM_COMMAND_BASE + DRM_MACH64_GETPARAM, drm_mach64_getparam_t) /* Buffer flags for clears */ #define MACH64_FRONT 0x1 #define MACH64_BACK 0x2 #define MACH64_DEPTH 0x4 /* Primitive types for vertex buffers */ #define MACH64_PRIM_POINTS 0x00000000 #define MACH64_PRIM_LINES 0x00000001 #define MACH64_PRIM_LINE_LOOP 0x00000002 #define MACH64_PRIM_LINE_STRIP 0x00000003 #define MACH64_PRIM_TRIANGLES 0x00000004 #define MACH64_PRIM_TRIANGLE_STRIP 0x00000005 #define MACH64_PRIM_TRIANGLE_FAN 0x00000006 #define MACH64_PRIM_QUADS 0x00000007 #define MACH64_PRIM_QUAD_STRIP 0x00000008 #define MACH64_PRIM_POLYGON 0x00000009 typedef enum _drm_mach64_dma_mode_t { MACH64_MODE_DMA_ASYNC, MACH64_MODE_DMA_SYNC, MACH64_MODE_MMIO } drm_mach64_dma_mode_t; typedef struct drm_mach64_init { enum { DRM_MACH64_INIT_DMA = 0x01, DRM_MACH64_CLEANUP_DMA = 0x02 } func; unsigned long sarea_priv_offset; int is_pci; drm_mach64_dma_mode_t dma_mode; 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 long fb_offset; unsigned long mmio_offset; unsigned long ring_offset; unsigned long buffers_offset; unsigned long agp_textures_offset; } drm_mach64_init_t; typedef struct drm_mach64_clear { unsigned int flags; int x, y, w, h; unsigned int clear_color; unsigned int clear_depth; } drm_mach64_clear_t; typedef struct drm_mach64_vertex { int prim; void *buf; /* Address of vertex buffer */ unsigned long used; /* Number of bytes in buffer */ int discard; /* Client finished with buffer? */ } drm_mach64_vertex_t; typedef struct drm_mach64_blit { void *buf; int pitch; int offset; int format; unsigned short x, y; unsigned short width, height; } drm_mach64_blit_t; typedef struct drm_mach64_getparam { enum { MACH64_PARAM_FRAMES_QUEUED = 0x01, MACH64_PARAM_IRQ_NR = 0x02 } param; void *value; } drm_mach64_getparam_t; #endif

generated by cgit v1.2.3 (git 2.25.1) at 2025-11-19 08:47:33 +0000

/**
 * \file drm_ioc32.c
 *
 * 32-bit ioctl compatibility routines for the DRM.
 *
 * \author Paul Mackerras <paulus@samba.org>
 *
 * Copyright (C) Paul Mackerras 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 <linux/ioctl32.h>

#include "drmP.h"
#include "drm_core.h"

#define DRM_IOCTL_VERSION32		DRM_IOWR(0x00, drm_version32_t)
#define DRM_IOCTL_GET_UNIQUE32		DRM_IOWR(0x01, drm_unique32_t)
#define DRM_IOCTL_GET_MAP32		DRM_IOWR(0x04, drm_map32_t)
#define DRM_IOCTL_GET_CLIENT32		DRM_IOWR(0x05, drm_client32_t)
#define DRM_IOCTL_GET_STATS32		DRM_IOR( 0x06, drm_stats32_t)

#define DRM_IOCTL_SET_UNIQUE32		DRM_IOW( 0x10, drm_unique32_t)
#define DRM_IOCTL_ADD_MAP32		DRM_IOWR(0x15, drm_map32_t)
#define DRM_IOCTL_ADD_BUFS32		DRM_IOWR(0x16, drm_buf_desc32_t)
#define DRM_IOCTL_MARK_BUFS32		DRM_IOW( 0x17, drm_buf_desc32_t)
#define DRM_IOCTL_INFO_BUFS32		DRM_IOWR(0x18, drm_buf_info32_t)
#define DRM_IOCTL_MAP_BUFS32		DRM_IOWR(0x19, drm_buf_map32_t)
#define DRM_IOCTL_FREE_BUFS32		DRM_IOW( 0x1a, drm_buf_free32_t)

#define DRM_IOCTL_RM_MAP32		DRM_IOW( 0x1b, drm_map32_t)

#define DRM_IOCTL_SET_SAREA_CTX32	DRM_IOW( 0x1c, drm_ctx_priv_map32_t)
#define DRM_IOCTL_GET_SAREA_CTX32	DRM_IOWR(0x1d, drm_ctx_priv_map32_t)

#define DRM_IOCTL_RES_CTX32		DRM_IOWR(0x26, drm_ctx_res32_t)
#define DRM_IOCTL_DMA32			DRM_IOWR(0x29, drm_dma32_t)

#define DRM_IOCTL_AGP_ENABLE32		DRM_IOW( 0x32, drm_agp_mode32_t)
#define DRM_IOCTL_AGP_INFO32		DRM_IOR( 0x33, drm_agp_info32_t)
#define DRM_IOCTL_AGP_ALLOC32		DRM_IOWR(0x34, drm_agp_buffer32_t)
#define DRM_IOCTL_AGP_FREE32		DRM_IOW( 0x35, drm_agp_buffer32_t)
#define DRM_IOCTL_AGP_BIND32		DRM_IOW( 0x36, drm_agp_binding32_t)
#define DRM_IOCTL_AGP_UNBIND32		DRM_IOW( 0x37, drm_agp_binding32_t)

#define DRM_IOCTL_SG_ALLOC32		DRM_IOW( 0x38, drm_scatter_gather32_t)
#define DRM_IOCTL_SG_FREE32		DRM_IOW( 0x39, drm_scatter_gather32_t)

#define DRM_IOCTL_WAIT_VBLANK32		DRM_IOWR(0x3a, drm_wait_vblank32_t)

typedef struct drm_version_32 {
	int	version_major;	  /**< Major version */
	int	version_minor;	  /**< Minor version */
	int	version_patchlevel;/**< Patch level */
	u32	name_len;	  /**< Length of name buffer */
	u32	name;		  /**< Name of driver */
	u32	date_len;	  /**< Length of date buffer */
	u32	date;		  /**< User-space buffer to hold date */
	u32	desc_len;	  /**< Length of desc buffer */
	u32	desc;		  /**< User-space buffer to hold desc */
} drm_version32_t;

static int compat_drm_version(struct file *file, unsigned int cmd,
			      unsigned long arg)
{
	drm_version32_t v32;
	drm_version_t __user *version;
	int err;

	if (copy_from_user(&v32, (void __user *) arg, sizeof(v32)))
		return -EFAULT;

	version = compat_alloc_user_space(sizeof(*version));
	if (!access_ok(VERIFY_WRITE, version, sizeof(*version)))
		return -EFAULT;
	if (__put_user(v32.name_len, &version->name_len)
	    || __put_user((void __user *)(unsigned long)v32.name,
			  &version->name)
	    || __put_user(v32.date_len, &version->date_len)
	    || __put_user((void __user *)(unsigned long)v32.date,
			  &version->date)
	    || __put_user(v32.desc_len, &version->desc_len)
	    || __put_user((void __user *)(unsigned long)v32.desc,
			  &version->desc))
		return -EFAULT;

	err = drm_ioctl(file->f_dentry->d_inode, file,
			DRM_IOCTL_VERSION, (unsigned long) version);
	if (err)
		return err;

	if (__get_user(v32.version_major, &version->version_major)
	    || __get_user(v32.version_minor, &version->version_minor)
	    || __get_user(v32.version_patchlevel, &version->version_patchlevel)
	    || __get_user(v32.name_len, &version->name_len)
	    || __get_user(v32.date_len, &version->date_len)
	    || __get_user(v32.desc_len, &version->desc_len))
		return -EFAULT;

	if (copy_to_user((void __user *) arg, &v32, sizeof(v32)))
		return -EFAULT;
	return 0;
}

typedef struct drm_unique32 {
	u32 unique_len;	/**< Length of unique */
	u32 unique;	/**< Unique name for driver instantiation */
} drm_unique32_t;

static int compat_drm_getunique(struct file *file, unsigned int cmd,
				unsigned long arg)
{
	drm_unique32_t uq32;
	drm_unique_t __user *u;
	int err;

	if (copy_from_user(&uq32, (void __user *) arg, sizeof(uq32)))
		return -EFAULT;

	u = compat_alloc_user_space(sizeof(*u));
	if (!access_ok(VERIFY_WRITE, u, sizeof(*u)))
		return -EFAULT;
	if (__put_user(uq32.unique_len, &u->unique_len)
	    || __put_user((void __user *)(unsigned long) uq32.unique,
			  &u->unique))
		return -EFAULT;

	err = drm_ioctl(file->f_dentry->d_inode, file,
			DRM_IOCTL_GET_UNIQUE, (unsigned long) u);
	if (err)
		return err;

	if (__get_user(uq32.unique_len, &u->unique_len))
		return -EFAULT;
	if (copy_to_user((void __user *) arg, &uq32, sizeof(uq32)))
		return -EFAULT;
	return 0;
}

static int compat_drm_setunique(struct file *file, unsigned int cmd,
				unsigned long arg)
{
	drm_unique32_t uq32;
	drm_unique_t __user *u;

	if (copy_from_user(&uq32, (void __user *) arg, sizeof(uq32)))
		return -EFAULT;

	u = compat_alloc_user_space(sizeof(*u));
	if (!access_ok(VERIFY_WRITE, u, sizeof(*u)))
		return -EFAULT;
	if (__put_user(uq32.unique_len, &u->unique_len)
	    || __put_user((void __user *)(unsigned long) uq32.unique,
			  &u->unique))
		return -EFAULT;

	return drm_ioctl(file->f_dentry->d_inode, file,
			 DRM_IOCTL_SET_UNIQUE, (unsigned long) u);
}

typedef struct drm_map32 {
	u32	offset;	 	/**< Requested physical address (0 for SAREA)*/
	u32	size;	 	/**< Requested physical size (bytes) */
	drm_map_type_t	type;	/**< Type of memory to map */
	drm_map_flags_t flags;	/**< Flags */
	u32	handle;		/**< User-space: "Handle" to pass to mmap() */
	int	mtrr;		/**< MTRR slot used */
} drm_map32_t;

static int compat_drm_getmap(struct file *file, unsigned int cmd,
			     unsigned long arg)
{
	drm_map32_t __user *argp = (void __user *)arg;
	drm_map32_t m32;
	drm_map_t __user *map;
	int idx, err;
	void *handle;

	if (get_user(idx, &argp->offset))
		return -EFAULT;

	map = compat_alloc_user_space(sizeof(*map));
	if (!access_ok(VERIFY_WRITE, map, sizeof(*map)))
		return -EFAULT;
	if (__put_user(idx, &map->offset))
		return -EFAULT;

	err = drm_ioctl(file->f_dentry->d_inode, file,
			DRM_IOCTL_GET_MAP, (unsigned long) map);
	if (err)
		return err;

	if (__get_user(m32.offset, &map->offset)
	    || __get_user(m32.size, &map->size)
	    || __get_user(m32.type, &map->type)
	    || __get_user(m32.flags, &map->flags)
	    || __get_user(handle, &map->handle)
	    || __get_user(m32.mtrr, &map->mtrr))
		return -EFAULT;

	m32.handle = (unsigned long) handle;
	if (copy_to_user(argp, &m32, sizeof(m32)))
		return -EFAULT;
	return 0;

}

static int compat_drm_addmap(struct file *file, unsigned int cmd,
			     unsigned long arg)
{
	drm_map32_t __user *argp = (void __user *)arg;
	drm_map32_t m32;
	drm_map_t __user *map;
	int err;
	void *handle;

	if (copy_from_user(&m32, argp, sizeof(m32)))
		return -EFAULT;

	map = compat_alloc_user_space(sizeof(*map));
	if (!access_ok(VERIFY_WRITE, map, sizeof(*map)))
		return -EFAULT;
	if (__put_user(m32.offset, &map->offset)
	    || __put_user(m32.size, &map->size)
	    || __put_user(m32.type, &map->type)
	    || __put_user(m32.flags, &map->flags))
		return -EFAULT;

	err = drm_ioctl(file->f_dentry->d_inode, file,
			DRM_IOCTL_ADD_MAP, (unsigned long) map);
	if (err)
		return err;

	if (__get_user(m32.offset, &map->offset)
	    || __get_user(m32.mtrr, &map->mtrr)
	    || __get_user(handle, &map->handle))
		return -EFAULT;

	m32.handle = (unsigned long) handle;
	if (m32.handle != (unsigned long) handle && printk_ratelimit())
		printk(KERN_ERR "compat_drm_addmap truncated handle"
		       " %p for type %d offset %x\n",
		       handle, m32.type, m32.offset);

	if (copy_to_user(argp, &m32, sizeof(m32)))
		return -EFAULT;

	return 0;
}

static int compat_drm_rmmap(struct file *file, unsigned int cmd,
			    unsigned long arg)
{
	drm_map32_t __user *argp = (void __user *)arg;
	drm_map_t __user *map;
	u32 handle;

	if (get_user(handle, &argp->handle))
		return -EFAULT;

	map = compat_alloc_user_space(sizeof(*map));
	if (!access_ok(VERIFY_WRITE, map, sizeof(*map)))
		return -EFAULT;
	if (__put_user((void *)(unsigned long) handle, &map->handle))
		return -EFAULT;

	return drm_ioctl(file->f_dentry->d_inode, file,
			 DRM_IOCTL_RM_MAP, (unsigned long) map);
}

typedef struct drm_client32 {
	int	idx;	/**< Which client desired? */
	int	auth;	/**< Is client authenticated? */
	u32	pid;	/**< Process ID */
	u32	uid;	/**< User ID */
	u32	magic;	/**< Magic */
	u32	iocs;	/**< Ioctl count */
} drm_client32_t;

static int compat_drm_getclient(struct file *file, unsigned int cmd,
				unsigned long arg)
{
	drm_client32_t c32;
	drm_client32_t __user *argp = (void __user *)arg;
	drm_client_t __user *client;
	int idx, err;

	if (get_user(idx, &argp->idx))
		return -EFAULT;

	client = compat_alloc_user_space(sizeof(*client));
	if (!access_ok(VERIFY_WRITE, client, sizeof(*client)))
		return -EFAULT;
	if (__put_user(idx, &client->idx))
		return -EFAULT;

	err = drm_ioctl(file->f_dentry->d_inode, file,
			DRM_IOCTL_GET_CLIENT, (unsigned long) client);
	if (err)
		return err;

	if (__get_user(c32.auth, &client->auth)
	    || __get_user(c32.pid, &client->pid)
	    || __get_user(c32.uid, &client->uid)
	    || __get_user(c32.magic, &client->magic)
	    || __get_user(c32.iocs, &client->iocs))
		return -EFAULT;

	if (copy_to_user(argp, &c32, sizeof(c32)))
		return -EFAULT;
	return 0;
}

typedef struct drm_stats32 {
	u32 count;
	struct {
		u32 value;
		drm_stat_type_t type;
	} data[15];
} drm_stats32_t;

static int compat_drm_getstats(struct file *file, unsigned int cmd,
			       unsigned long arg)
{
	drm_stats32_t s32;
	drm_stats32_t __user *argp = (void __user *)arg;
	drm_stats_t __user *stats;
	int i, err;

	stats = compat_alloc_user_space(sizeof(*stats));
	if (!access_ok(VERIFY_WRITE, stats, sizeof(*stats)))
		return -EFAULT;

	err = drm_ioctl(file->f_dentry->d_inode, file,
			DRM_IOCTL_GET_STATS, (unsigned long) stats);
	if (err)
		return err;

	if (__get_user(s32.count, &stats->count))
		return -EFAULT;
	for (i = 0; i < 15; ++i)
		if (__get_user(s32.data[i].value, &stats->data[i].value)
		    || __get_user(s32.data[i].type, &stats->data[i].type))
			return -EFAULT;

	if (copy_to_user(argp, &s32, sizeof(s32)))
		return -EFAULT;
	return 0;
}

typedef struct drm_buf_desc32 {
	int	      count;	 /**< Number of buffers of this size */
	int	      size;	 /**< Size in bytes */
	int	      low_mark;	 /**< Low water mark */
	int	      high_mark; /**< High water mark */
	int	      flags;
	u32	      agp_start; /**< Start address in the AGP aperture */
} drm_buf_desc32_t;

static int compat_drm_addbufs(struct file *file, unsigned int cmd,
			      unsigned long arg)
{
	drm_buf_desc32_t __user *argp = (void __user *)arg;
	drm_buf_desc_t __user *buf;
	int err;
	unsigned long agp_start;

	buf = compat_alloc_user_space(sizeof(*buf));
	if (!access_ok(VERIFY_WRITE, buf, sizeof(*buf))
	    || !access_ok(VERIFY_WRITE, argp, sizeof(*argp)))
		return -EFAULT;

	if (__copy_in_user(buf, argp, offsetof(drm_buf_desc32_t, agp_start))
	    || __get_user(agp_start, &argp->agp_start)
	    || __put_user(agp_start, &buf->agp_start))
		return -EFAULT;

	err = drm_ioctl(file->f_dentry->d_inode, file,
			DRM_IOCTL_ADD_BUFS, (unsigned long) buf);
	if (err)
		return err;

	if (__copy_in_user(argp, buf, offsetof(drm_buf_desc32_t, agp_start))
	    || __get_user(agp_start, &buf->agp_start)
	    || __put_user(agp_start, &argp->agp_start))
		return -EFAULT;

	return 0;
}

static int compat_drm_markbufs(struct file *file, unsigned int cmd,
			       unsigned long arg)
{
	drm_buf_desc32_t b32;
	drm_buf_desc32_t __user *argp = (void __user *)arg;
	drm_buf_desc_t __user *buf;

	if (copy_from_user(&b32, argp, sizeof(b32)))
		return -EFAULT;

	buf = compat_alloc_user_space(sizeof(*buf));
	if (!access_ok(VERIFY_WRITE, buf, sizeof(*buf)))
		return -EFAULT;

	if (__put_user(b32.size, &buf->size)
	    || __put_user(b32.low_mark, &buf->low_mark)
	    || __put_user(b32.high_mark, &buf->high_mark))
		return -EFAULT;

	return drm_ioctl(file->f_dentry->d_inode, file,
			 DRM_IOCTL_MARK_BUFS, (unsigned long) buf);
}

typedef struct drm_buf_info32 {
	int	       count;	/**< Entries in list */
	u32	       list;
} drm_buf_info32_t;

static int compat_drm_infobufs(struct file *file, unsigned int cmd,
			       unsigned long arg)
{
	drm_buf_info32_t req32;
	drm_buf_info32_t __user *argp = (void __user *)arg;
	drm_buf_desc32_t __user *to;
	drm_buf_info_t __user *request;
	drm_buf_desc_t __user *list;
	size_t nbytes;
	int i, err;
	int count, actual;

	if (copy_from_user(&req32, argp, sizeof(req32)))
		return -EFAULT;

	count = req32.count;
	to = (drm_buf_desc32_t __user *)(unsigned long) req32.list;
	if (count < 0)
		count = 0;
	if (count > 0
	    && !access_ok(VERIFY_WRITE, to, count * sizeof(drm_buf_desc32_t)))
		return -EFAULT;

	nbytes = sizeof(*request) + count * sizeof(drm_buf_desc_t);
	request = compat_alloc_user_space(nbytes);
	if (!access_ok(VERIFY_WRITE, request, nbytes))
		return -EFAULT;
	list = (drm_buf_desc_t *) (request + 1);

	if (__put_user(count, &request->count)
	    || __put_user(list, &request->list))
		return -EFAULT;

	err = drm_ioctl(file->f_dentry->d_inode, file,
			DRM_IOCTL_INFO_BUFS, (unsigned long) request);
	if (err)
		return err;

	if (__get_user(actual, &request->count))
		return -EFAULT;
	if (count >= actual)
		for (i = 0; i < actual; ++i)
			if (__copy_in_user(&to[i], &list[i],
					   offsetof(drm_buf_desc_t, flags)))
				return -EFAULT;

	if (__put_user(actual, &argp->count))
		return -EFAULT;

	return 0;
}

typedef struct drm_buf_pub32 {
	int	idx;		/**< Index into the master buffer list */
	int	total;		/**< Buffer size */
	int	used;		/**< Amount of buffer in use (for DMA) */
	u32	address;	/**< Address of buffer */
} drm_buf_pub32_t;

typedef struct drm_buf_map32 {
	int	count;		/**< Length of the buffer list */
	u32	virtual;	/**< Mmap'd area in user-virtual */
	u32	list;		/**< Buffer information */
} drm_buf_map32_t;

static int compat_drm_mapbufs(struct file *file, unsigned int cmd,
			      unsigned long arg)
{
	drm_buf_map32_t __user *argp = (void __user *)arg;
	drm_buf_map32_t req32;
	drm_buf_pub32_t __user *list32;
	drm_buf_map_t __user *request;
	drm_buf_pub_t __user *list;
	int i, err;
	int count, actual;
	size_t nbytes;
	void __user *addr;

	if (copy_from_user(&req32, argp, sizeof(req32)))
		return -EFAULT;
	count = req32.count;
	list32 = (void __user *)(unsigned long)req32.list;

	if (count < 0)
		return -EINVAL;
	nbytes = sizeof(*request) + count * sizeof(drm_buf_pub_t);
	request = compat_alloc_user_space(nbytes);
	if (!access_ok(VERIFY_WRITE, request, nbytes))
		return -EFAULT;
	list = (drm_buf_pub_t *) (request + 1);

	if (__put_user(count, &request->count)
	    || __put_user(list, &request->list))
		return -EFAULT;

	err = drm_ioctl(file->f_dentry->d_inode, file,
			DRM_IOCTL_MAP_BUFS, (unsigned long) request);
	if (err)
		return err;

	if (__get_user(actual, &request->count))
		return -EFAULT;
	if (count >= actual)
		for (i = 0; i < actual; ++i)
			if (__copy_in_user(&list32[i], &list[i],
					   offsetof(drm_buf_pub_t, address))
			    || __get_user(addr, &list[i].address)
			    || __put_user((unsigned long) addr,
					  &list32[i].address))
				return -EFAULT;

	if (__put_user(actual, &argp->count)
	    || __get_user(addr, &request->virtual)
	    || __put_user((unsigned long) addr, &argp->virtual))
		return -EFAULT;

	return 0;
}

typedef struct drm_buf_free32 {
	int	count;
	u32	list;
} drm_buf_free32_t;

static int compat_drm_freebufs(struct file *file, unsigned int cmd,
			       unsigned long arg)
{
	drm_buf_free32_t req32;
	drm_buf_free_t __user *request;
	drm_buf_free32_t __user *argp = (void __user *)arg;

	if (copy_from_user(&req32, argp, sizeof(req32)))
		return -EFAULT;

	request = compat_alloc_user_space(sizeof(*request));
	if (!access_ok(VERIFY_WRITE, request, sizeof(*request)))
		return -EFAULT;
	if (__put_user(req32.count, &request->count)
	    || __put_user((int __user *)(unsigned long) req32.list,
			  &request->list))
		return -EFAULT;

	return drm_ioctl(file->f_dentry->d_inode, file,
			 DRM_IOCTL_FREE_BUFS, (unsigned long) request);
}

typedef struct drm_ctx_priv_map32 {
	unsigned int	ctx_id;  /**< Context requesting private mapping */
	u32		handle; /**< Handle of map */
} drm_ctx_priv_map32_t;

static int compat_drm_setsareactx(struct file *file, unsigned int cmd,
				  unsigned long arg)
{
	drm_ctx_priv_map32_t req32;
	drm_ctx_priv_map_t __user *request;
	drm_ctx_priv_map32_t __user *argp = (void __user *)arg;

	if (copy_from_user(&req32, argp, sizeof(req32)))
		return -EFAULT;

	request = compat_alloc_user_space(sizeof(*request));
	if (!access_ok(VERIFY_WRITE, request, sizeof(*request)))
		return -EFAULT;
	if (__put_user(req32.ctx_id, &request->ctx_id)
	    || __put_user((void *)(unsigned long) req32.handle,
			  &request->handle))
		return -EFAULT;

	return drm_ioctl(file->f_dentry->d_inode, file,
			 DRM_IOCTL_SET_SAREA_CTX, (unsigned long) request);
}

static int compat_drm_getsareactx(struct file *file, unsigned int cmd,
				  unsigned long arg)
{
	drm_ctx_priv_map_t __user *request;
	drm_ctx_priv_map32_t __user *argp = (void __user *)arg;
	int err;
	unsigned int ctx_id;
	void *handle;

	if (!access_ok(VERIFY_WRITE, argp, sizeof(*argp))
	    || __get_user(ctx_id, &argp->ctx_id))
		return -EFAULT;

	request = compat_alloc_user_space(sizeof(*request));
	if (!access_ok(VERIFY_WRITE, request, sizeof(*request)))
		return -EFAULT;
	if (__put_user(ctx_id, &request->ctx_id))
		return -EFAULT;

	err = drm_ioctl(file->f_dentry->d_inode, file,
			DRM_IOCTL_GET_SAREA_CTX, (unsigned long) request);
	if (err)
		return err;

	if (__get_user(handle, &request->handle)
	    || __put_user((unsigned long) handle, &argp->handle))
		return -EFAULT;

	return 0;
}

typedef struct drm_ctx_res32 {
	int	count;
	u32	contexts;
} drm_ctx_res32_t;

static int compat_drm_resctx(struct file *file, unsigned int cmd,
			     unsigned long arg)
{
	drm_ctx_res32_t __user *argp = (void __user *)arg;
	drm_ctx_res32_t res32;
	drm_ctx_res_t __user *res;
	int err;

	if (copy_from_user(&res32, argp, sizeof(res32)))
		return -EFAULT;

	res = compat_alloc_user_space(sizeof(*res));
	if (!access_ok(VERIFY_WRITE, res, sizeof(*res)))
		return -EFAULT;
	if (__put_user(res32.count, &res->count)
	    || __put_user((drm_ctx_t __user *)(unsigned long) res32.contexts,
			  &res->contexts))
		return -EFAULT;

	err = drm_ioctl(file->f_dentry->d_inode, file,
			DRM_IOCTL_RES_CTX, (unsigned long) res);
	if (err)
		return err;

	if (__get_user(res32.count, &res->count)
	    || __put_user(res32.count, &argp->count))
		return -EFAULT;

	return 0;
}

typedef struct drm_dma32 {
	int	context;	  /**< Context handle */
	int	send_count;	  /**< Number of buffers to send */
	u32	send_indices;	  /**< List of handles to buffers */
	u32	send_sizes;	  /**< Lengths of data to send */
	drm_dma_flags_t flags;		  /**< Flags */
	int	request_count;	  /**< Number of buffers requested */
	int	request_size;	  /**< Desired size for buffers */
	u32	request_indices;  /**< Buffer information */
	u32	request_sizes;
	int	granted_count;	  /**< Number of buffers granted */
} drm_dma32_t;

static int compat_drm_dma(struct file *file, unsigned int cmd,
			  unsigned long arg)
{
	drm_dma32_t d32;
	drm_dma32_t __user *argp = (void __user *) arg;
	drm_dma_t __user *d;
	int err;

	if (copy_from_user(&d32, argp, sizeof(d32)))
		return -EFAULT;

	d = compat_alloc_user_space(sizeof(*d));
	if (!access_ok(VERIFY_WRITE, d, sizeof(*d)))
		return -EFAULT;

	if (__put_user(d32.context, &d->context)
	    || __put_user(d32.send_count, &d->send_count)
	    || __put_user((int __user *)(unsigned long) d32.send_indices,
			  &d->send_indices)
	    || __put_user((int __user *)(unsigned long) d32.send_sizes,
			  &d->send_sizes)
	    || __put_user(d32.flags, &d->flags)
	    || __put_user(d32.request_count, &d->request_count)
	    || __put_user((int __user *)(unsigned long) d32.request_indices,
			  &d->request_indices)
	    || __put_user((int __user *)(unsigned long) d32.request_sizes,
			  &d->request_sizes))
		return -EFAULT;

	err = drm_ioctl(file->f_dentry->d_inode, file,
			DRM_IOCTL_DMA, (unsigned long) d);
	if (err)
		return err;

	if (__get_user(d32.request_size, &d->request_size)
	    || __get_user(d32.granted_count, &d->granted_count)
	    || __put_user(d32.request_size, &argp->request_size)
	    || __put_user(d32.granted_count, &argp->granted_count))
		return -EFAULT;

	return 0;
}

#if __OS_HAS_AGP
typedef struct drm_agp_mode32 {
	u32 mode;	/**< AGP mode */
} drm_agp_mode32_t;

static int compat_drm_agp_enable(struct file *file, unsigned int cmd,
				 unsigned long arg)
{
	drm_agp_mode32_t __user *argp = (void __user *)arg;
	drm_agp_mode32_t m32;
	drm_agp_mode_t __user *mode;

	if (get_user(m32.mode, &argp->mode))
		return -EFAULT;

	mode = compat_alloc_user_space(sizeof(*mode));
	if (put_user(m32.mode, &mode->mode))
		return -EFAULT;

	return drm_ioctl(file->f_dentry->d_inode, file,
			 DRM_IOCTL_AGP_ENABLE, (unsigned long) mode);
}

typedef struct drm_agp_info32 {
	int       agp_version_major;
	int       agp_version_minor;
	u32	  mode;
	u32	  aperture_base;  /* physical address */
	u32	  aperture_size;  /* bytes */
	u32	  memory_allowed; /* bytes */
	u32	  memory_used;

				/* PCI information */
	unsigned short id_vendor;
	unsigned short id_device;
} drm_agp_info32_t;

static int compat_drm_agp_info(struct file *file, unsigned int cmd,
			       unsigned long arg)
{
	drm_agp_info32_t __user *argp = (void __user *)arg;
	drm_agp_info32_t i32;
	drm_agp_info_t __user *info;
	int err;

	info = compat_alloc_user_space(sizeof(*info));
	if (!access_ok(VERIFY_WRITE, info, sizeof(*info)))
		return -EFAULT;

	err = drm_ioctl(file->f_dentry->d_inode, file,
			DRM_IOCTL_AGP_INFO, (unsigned long) info);
	if (err)
		return err;

	if (__get_user(i32.agp_version_major, &info->agp_version_major)
	    || __get_user(i32.agp_version_minor, &info->agp_version_minor)
	    || __get_user(i32.mode, &info->mode)
	    || __get_user(i32.aperture_base, &info->aperture_base)
	    || __get_user(i32.aperture_size, &info->aperture_size)
	    || __get_user(i32.memory_allowed, &info->memory_allowed)
	    || __get_user(i32.memory_used, &info->memory_used)
	    || __get_user(i32.id_vendor, &info->id_vendor)
	    || __get_user(i32.id_device, &info->id_device))
		return -EFAULT;

	if (copy_to_user(argp, &i32, sizeof(i32)))
		return -EFAULT;

	return 0;
}

typedef struct drm_agp_buffer32 {
	u32 size;	/**< In bytes -- will round to page boundary */
	u32 handle;	/**< Used for binding / unbinding */
	u32 type;	/**< Type of memory to allocate */
        u32 physical;	/**< Physical used by i810 */
} drm_agp_buffer32_t;

static int compat_drm_agp_alloc(struct file *file, unsigned int cmd,
				unsigned long arg)
{
	drm_agp_buffer32_t __user *argp = (void __user *)arg;
	drm_agp_buffer32_t req32;
	drm_agp_buffer_t __user *request;
	int err;

	if (copy_from_user(&req32, argp, sizeof(req32)))
		return -EFAULT;

	request = compat_alloc_user_space(sizeof(*request));
	if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
	    || __put_user(req32.size, &request->size)
	    || __put_user(req32.type, &request->type))
		return -EFAULT;

	err = drm_ioctl(file->f_dentry->d_inode, file,
			DRM_IOCTL_AGP_ALLOC, (unsigned long) request);
	if (err)
		return err;

	if (__get_user(req32.handle, &request->handle)
	    || __get_user(req32.physical, &request->physical)
	    || copy_to_user(argp, &req32, sizeof(req32))) {
		drm_ioctl(file->f_dentry->d_inode, file,
			  DRM_IOCTL_AGP_FREE, (unsigned long) request);
		return -EFAULT;
	}

	return 0;
}

static int compat_drm_agp_free(struct file *file, unsigned int cmd,
			       unsigned long arg)
{
	drm_agp_buffer32_t __user *argp = (void __user *)arg;
	drm_agp_buffer_t __user *request;
	u32 handle;

	request = compat_alloc_user_space(sizeof(*request));
	if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
	    || get_user(handle, &argp->handle)
	    || __put_user(handle, &request->handle))
		return -EFAULT;

	return drm_ioctl(file->f_dentry->d_inode, file,
			 DRM_IOCTL_AGP_FREE, (unsigned long) request);
}

typedef struct drm_agp_binding32 {
	u32 handle;	/**< From drm_agp_buffer */
	u32 offset;	/**< In bytes -- will round to page boundary */
} drm_agp_binding32_t;

static int compat_drm_agp_bind(struct file *file, unsigned int cmd,
			       unsigned long arg)
{
	drm_agp_binding32_t __user *argp = (void __user *)arg;
	drm_agp_binding32_t req32;
	drm_agp_binding_t __user *request;

	if (copy_from_user(&req32, argp, sizeof(req32)))
		return -EFAULT;

	request = compat_alloc_user_space(sizeof(*request));
	if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
	    || __put_user(req32.handle, &request->handle)
	    || __put_user(req32.offset, &request->offset))
		return -EFAULT;

	return drm_ioctl(file->f_dentry->d_inode, file,
			 DRM_IOCTL_AGP_BIND, (unsigned long) request);
}

static int compat_drm_agp_unbind(struct file *file, unsigned int cmd,
				 unsigned long arg)
{
	drm_agp_binding32_t __user *argp = (void __user *)arg;
	drm_agp_binding_t __user *request;
	u32 handle;

	request = compat_alloc_user_space(sizeof(*request));
	if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
	    || get_user(handle, &argp->handle)
	    || __put_user(handle, &request->handle))
		return -EFAULT;

	return drm_ioctl(file->f_dentry->d_inode, file,
			 DRM_IOCTL_AGP_UNBIND, (unsigned long) request);
}
#endif /* __OS_HAS_AGP */

typedef struct drm_scatter_gather32 {
	u32 size;	/**< In bytes -- will round to page boundary */
	u32 handle;	/**< Used for mapping / unmapping */
} drm_scatter_gather32_t;

static int compat_drm_sg_alloc(struct file *file, unsigned int cmd,
			       unsigned long arg)
{
	drm_scatter_gather32_t __user *argp = (void __user *)arg;
	drm_scatter_gather_t __user *request;
	int err;
	unsigned long x;

	request = compat_alloc_user_space(sizeof(*request));
	if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
	    || !access_ok(VERIFY_WRITE, argp, sizeof(*argp))
	    || __get_user(x, &argp->size)
	    || __put_user(x, &request->size))
		return -EFAULT;

	err = drm_ioctl(file->f_dentry->d_inode, file,
			DRM_IOCTL_SG_ALLOC, (unsigned long) request);
	if (err)
		return err;

	/* XXX not sure about the handle conversion here... */
	if (__get_user(x, &request->handle)
	    || __put_user(x >> PAGE_SHIFT, &argp->handle))
		return -EFAULT;

	return 0;
}

static int compat_drm_sg_free(struct file *file, unsigned int cmd,
			      unsigned long arg)
{
	drm_scatter_gather32_t __user *argp = (void __user *)arg;
	drm_scatter_gather_t __user *request;
	unsigned long x;

	request = compat_alloc_user_space(sizeof(*request));
	if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
	    || !access_ok(VERIFY_WRITE, argp, sizeof(*argp))
	    || __get_user(x, &argp->handle)
	    || __put_user(x << PAGE_SHIFT, &request->handle))
		return -EFAULT;

	return drm_ioctl(file->f_dentry->d_inode, file,
			 DRM_IOCTL_SG_FREE, (unsigned long) request);
}

struct drm_wait_vblank_request32 {
	drm_vblank_seq_type_t type;
	unsigned int sequence;
	u32 signal;
};

struct drm_wait_vblank_reply32 {
	drm_vblank_seq_type_t type;
	unsigned int sequence;
	s32 tval_sec;
	s32 tval_usec;
};

typedef union drm_wait_vblank32 {
	struct drm_wait_vblank_request32 request;
	struct drm_wait_vblank_reply32 reply;
} drm_wait_vblank32_t;

static int compat_drm_wait_vblank(struct file *file, unsigned int cmd,
				  unsigned long arg)
{
	drm_wait_vblank32_t __user *argp = (void __user *)arg;
	drm_wait_vblank32_t req32;
	drm_wait_vblank_t __user *request;
	int err;

	if (copy_from_user(&req32, argp, sizeof(req32)))
		return -EFAULT;

	request = compat_alloc_user_space(sizeof(*request));
	if (!access_ok(VERIFY_WRITE, request, sizeof(*request))
	    || __put_user(req32.request.type, &request->request.type)
	    || __put_user(req32.request.sequence, &request->request.sequence)
	    || __put_user(req32.request.signal, &request->request.signal))
		return -EFAULT;

	err = drm_ioctl(file->f_dentry->d_inode, file,
			DRM_IOCTL_WAIT_VBLANK, (unsigned long) request);
	if (err)
		return err;

	if (__get_user(req32.reply.type, &request->reply.type)
	    || __get_user(req32.reply.sequence, &request->reply.sequence)
	    || __get_user(req32.reply.tval_sec, &request->reply.tval_sec)
	    || __get_user(req32.reply.tval_usec, &request->reply.tval_usec))
		return -EFAULT;

	if (copy_to_user(argp, &req32, sizeof(req32)))
		return -EFAULT;

	return 0;
}

drm_ioctl_compat_t *drm_compat_ioctls[] = {
	[DRM_IOCTL_NR(DRM_IOCTL_VERSION32)] = compat_drm_version,
	[DRM_IOCTL_NR(DRM_IOCTL_GET_UNIQUE32)] = compat_drm_getunique,
	[DRM_IOCTL_NR(DRM_IOCTL_GET_MAP32)] = compat_drm_getmap,
	[DRM_IOCTL_NR(DRM_IOCTL_GET_CLIENT32)] = compat_drm_getclient,
	[DRM_IOCTL_NR(DRM_IOCTL_GET_STATS32)] = compat_drm_getstats,
	[DRM_IOCTL_NR(DRM_IOCTL_SET_UNIQUE32)] = compat_drm_setunique,
	[DRM_IOCTL_NR(DRM_IOCTL_ADD_MAP32)] = compat_drm_addmap,
	[DRM_IOCTL_NR(DRM_IOCTL_ADD_BUFS32)] = compat_drm_addbufs,
	[DRM_IOCTL_NR(DRM_IOCTL_MARK_BUFS32)] = compat_drm_markbufs,
	[DRM_IOCTL_NR(DRM_IOCTL_INFO_BUFS32)] = compat_drm_infobufs,
	[DRM_IOCTL_NR(DRM_IOCTL_MAP_BUFS32)] = compat_drm_mapbufs,
	[DRM_IOCTL_NR(DRM_IOCTL_FREE_BUFS32)] = compat_drm_freebufs,
	[DRM_IOCTL_NR(DRM_IOCTL_RM_MAP32)] = compat_drm_rmmap,
	[DRM_IOCTL_NR(DRM_IOCTL_SET_SAREA_CTX32)] = compat_drm_setsareactx,
	[DRM_IOCTL_NR(DRM_IOCTL_GET_SAREA_CTX32)] = compat_drm_getsareactx,
	[DRM_IOCTL_NR(DRM_IOCTL_RES_CTX32)] = compat_drm_resctx,
	[DRM_IOCTL_NR(DRM_IOCTL_DMA32)] = compat_drm_dma,
#if __OS_HAS_AGP
	[DRM_IOCTL_NR(DRM_IOCTL_AGP_ENABLE32)] = compat_drm_agp_enable,
	[DRM_IOCTL_NR(DRM_IOCTL_AGP_INFO32)] = compat_drm_agp_info,
	[DRM_IOCTL_NR(DRM_IOCTL_AGP_ALLOC32)] = compat_drm_agp_alloc,
	[DRM_IOCTL_NR(DRM_IOCTL_AGP_FREE32)] = compat_drm_agp_free,
	[DRM_IOCTL_NR(DRM_IOCTL_AGP_BIND32)] = compat_drm_agp_bind,
	[DRM_IOCTL_NR(DRM_IOCTL_AGP_UNBIND32)] = compat_drm_agp_unbind,
#endif
	[DRM_IOCTL_NR(DRM_IOCTL_SG_ALLOC32)] = compat_drm_sg_alloc,
	[DRM_IOCTL_NR(DRM_IOCTL_SG_FREE32)] = compat_drm_sg_free,
	[DRM_IOCTL_NR(DRM_IOCTL_WAIT_VBLANK32)] = compat_drm_wait_vblank,
};

/**
 * Called whenever a 32-bit process running under a 64-bit kernel
 * performs an ioctl on /dev/drm.
 *
 * \param filp file pointer.
 * \param cmd command.
 * \param arg user argument.
 * \return zero on success or negative number on failure.
 */
long drm_compat_ioctl(struct file *filp, unsigned int cmd, unsigned long arg)
{
	unsigned int nr = DRM_IOCTL_NR(cmd);
	drm_ioctl_compat_t *fn;
	int ret;

	if (nr >= DRM_ARRAY_SIZE(drm_compat_ioctls))
		return -ENOTTY;

	fn = drm_compat_ioctls[nr];

	lock_kernel();		/* XXX for now */
	if (fn != NULL)
		ret = (*fn)(filp, cmd, arg);
	else
		ret = drm_ioctl(filp->f_dentry->d_inode, filp, cmd, arg);
	unlock_kernel();

	return ret;
}
EXPORT_SYMBOL(drm_compat_ioctl);