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

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path: root/bsd-core/drm_agpsupport.c

Age	Commit message (Collapse)	Author
2007-11-18	Bug #13233: Chase move of agp headers on FreeBSD.	Robert Noland
2007-08-15	Fix dev->agp->base initialization on BSD, and fix addmap range check on Linux.	Eric Anholt
	With the previous linux commit, an AGP aperture at the end of the address space would have wrapped to 0 and the test would have failed.
2007-08-15	BSD: Replace brief description in each file's first line with doxygen later on.	Eric Anholt
	The brief descriptions usually had the wrong filename in them.
2007-07-20	Replace DRM_IOCTL_ARGS with (dev, data, file_priv) and remove DRM_DEVICE.	Eric Anholt
	The data is now in kernel space, copied in/out as appropriate according to the This results in DRM_COPY_{TO,FROM}_USER going away, and error paths to deal with those failures. This also means that XFree86 4.2.0 support for i810 DRM is lost.
2007-05-29	Update a bunch of FreeBSD port code.	Jung-uk Kim
	Tested on r200/r300. i915 updates still remain to be done.
2005-12-30	Merge patch from jhb to catch up with FreeBSD-current vgapci master device	Eric Anholt
	changes.
2005-12-05	Remove driver.device_is_agp code duplicated in drm_device_find_capability,	Eric Anholt
	when it really wanted to live in drm_device_is_agp.
2005-11-28	Fix AGP support guessing: Implement the same bridge checking in the MGA	Eric Anholt
	driver as Linux uses, and actually use the driver's device_is_agp if available (hopefully fixing i915).
2005-11-08	Fix FreeBSD DRM for latest MGA changes to agp support, which cleans things	Eric Anholt
	up a good bit, I think. Also, remove the agp_uninit() function which has lain around as a noop for years now. The FreeBSD DRM is now all compiling, with the exception of via. One known sleeping-with-lock-held issue remains.
2005-08-05	Rename the driver hooks in the DRM to something a little more	Eric Anholt
	understandable: preinit -> load postinit -> (removed) presetup -> firstopen postsetup -> (removed) open_helper -> open prerelease -> preclose free_filp_priv -> postclose pretakedown -> lastclose postcleanup -> unload release -> reclaim_buffers_locked version -> (removed) postinit and version were replaced with generic code in the Linux DRM (drivers now set their version numbers and description in the driver structure, like on BSD). postsetup wasn't used at all. Fixes the savage hooks for initializing and tearing down mappings at the right times. Testing involved at least starting X, running glxgears, killing glxgears, exiting X, and repeating. Tested on: FreeBSD (g200, g400, r200, r128) Linux (r200, savage4)
2005-07-20	Add latest r300 support from r300.sf.net CVS. Patch submitted by volodya,	Eric Anholt
	with BSD fix from jkim and the r300_reg.h license from Nicolai Haehnle. Big thanks to everyone involved!
2005-06-29	Get the BSD DRM compiling again after MGA and mapping changes. Note that	Eric Anholt
	i915 has been disabled for the moment, rather than working around linux-specific code in the shared dir.
2005-06-14	Adds support for PCI cards to MGA DRM	Ian Romanick
	This patch adds serveral new ioctls and a new query to get_param query to support PCI MGA cards. Two ioctls were added to implement interrupt based waiting. With this change, the client-side driver no longer needs to map the primary DMA region or the MMIO region. Previously, end-of-frame waiting was done by busy waiting in the client-side driver until one of the MMIO registers (the current DMA pointer) matched a pointer to the end of primary DMA space. By using interrupts, the busy waiting and the extra mappings are removed. A third ioctl was added to bootstrap DMA. This ioctl, which is used by the X-server, moves a *LOT* of code from the X-server into the kernel. This allows the kernel to do whatever needs to be done to setup DMA buffers. The entire process and the locations of the buffers are hidden from user-mode. Additionally, a get_param query was added to differentiate between G4x0 cards and G550 cards. A gap was left in the numbering sequence so that, if needed, G450 cards could be distinguished from G400 cards. According to Ville Syrjälä, the G4x0 cards and the G550 cards handle anisotropic filtering differently. This seems the most compatible way to let the client-side driver know which card it's own. Doing this very small change now eliminates the need to bump the DRM minor version twice. http://marc.theaimsgroup.com/?l=dri-devel&m=106625815319773&w=2 A number of ioctl handlers in linux-core were also modified so that they could be called in-kernel. In these cases, the in-kernel callable version kept the existing name (e.g., drm_agp_acquire) and the ioctl handler added _ioctl to the name (e.g., drm_agp_acquire_ioctl). This patch also replaces the drm_agp_do_release function with drm_agp_release. drm_agp_release (drm_core_agp_release in the previous patch) is very similar to drm_agp_do_release, and I saw no reason to have both. This commit *breaks the build* on BSD. Eric said that he would make the required updates to the BSD side soon. Xorg bug: 3259 Reviewed by: Eric Anholt
2005-05-27	Modify drm_driver::device_is_agp to return a tri-state value to indicate	Ian Romanick
	that a device absolutely is, absolutely is not, or may or may not be AGP. Modify the i915 DRM to use this to force all i9x5 devices to be "AGP" (even the PCI-e devices). Reported by: Lukas Hejtmanek
2005-05-16	Added device_is_agp callback to drm_driver. This function is called by the	Ian Romanick
	platform-specific drm_device_is_agp function. Added implementation of this function the the Linux-specific portion of the MGA driver to detect PCI G450 cards. Added code to the Linux-specific portion of the generic DRM layer to not initialize AGP infrastructure if the card is not AGP (this matches what already existed in BSD). Bumped the driver date and the driver patch-level for MGA. This mostly fixes bugzilla #3248. The BSD side still needs an implementation of mga_driver_device_is_agp.
2005-04-16	Use /*- to begin license blocks in BSD code to reduce diffs against FreeBSD	Eric Anholt
	CVS.
2005-01-17	Add detection of whether the device is AGP by walking the capabilities	Eric Anholt
	list.
2004-11-07	Now that the memory debug code is gone, and all 3 BSDs have M_ZERO, stop	Eric Anholt
	using drm_alloc/drm_free in the core and instead use plain malloc/free.
2004-11-06	Commit first pieces of port to OpenBSD, done by Martin Lexa (martin at	Eric Anholt
	martinlexa dot cz). Now that we've got porting for all three major BSDs (and the fourth being very similar to FreeBSD), move the mostly-duplication drm_os_* files into drmP.h. Remove some cruft from linux heritage and from pieces of the DRM that have since been removed. Note that things are still not quite working for even FreeBSD, but these are first steps at cleanup, and just a WIP checkpoint.
2004-11-06	Commit WIP of BSD conversion to core model. Compiles for r128, radeon, but	Eric Anholt
	doesn't run yet. Moves the ioctl definitions for these two drivers back to the shared code -- they aren't OS-specific.
2003-08-19	- Remove $FreeBSD$ tags as they weren't too useful and merges are now being	Eric Anholt
	done through perforce. - Add copyright headers to drm_os_*bsd.h, still need to research the other copyright-less files better.
2003-04-26	Remove #if 0'ed code.	Eric Anholt
2003-03-11	Merge back from FreeBSD-current, adding FreeBSD ID tags to aid future	Eric Anholt
	merging. Also includes an update to radeon PCI IDs.
2003-02-21	Merge from bsd-4-0-0-branch.	Eric Anholt
2002-09-26	Fix one warning.	Eric Anholt
2002-07-05	merged bsd-3-0-0-branch	Alan Hourihane
2002-01-27	Import of XFree86 4.2.0	David Dawes

generated by cgit v1.2.3 (git 2.25.1) at 2024-09-21 14:44:35 +0000

/**
 * \file drm_proc.h 
 * /proc support for DRM
 *
 * \author Rickard E. (Rik) Faith <faith@valinux.com>
 * \author Gareth Hughes <gareth@valinux.com>
 *
 * \par Acknowledgements:
 *    Matthew J Sottek <matthew.j.sottek@intel.com> sent in a patch to fix
 *    the problem with the proc files not outputting all their information.
 */

/*
 * Created: Mon Jan 11 09:48:47 1999 by faith@valinux.com
 *
 * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
 * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
 * 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
 * VA LINUX SYSTEMS AND/OR ITS SUPPLIERS 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.
 */

#define __NO_VERSION__
#include "drmP.h"

static int	   DRM(name_info)(char *buf, char **start, off_t offset,
				  int request, int *eof, void *data);
static int	   DRM(vm_info)(char *buf, char **start, off_t offset,
				int request, int *eof, void *data);
static int	   DRM(clients_info)(char *buf, char **start, off_t offset,
				     int request, int *eof, void *data);
static int	   DRM(queues_info)(char *buf, char **start, off_t offset,
				    int request, int *eof, void *data);
static int	   DRM(bufs_info)(char *buf, char **start, off_t offset,
				  int request, int *eof, void *data);
#if DRM_DEBUG_CODE
static int	   DRM(vma_info)(char *buf, char **start, off_t offset,
				 int request, int *eof, void *data);
#endif

/**
 * Proc file list.
 */
struct drm_proc_list {
	const char *name;	/**< file name */
	int	   (*f)(char *, char **, off_t, int, int *, void *);	/**< proc callback*/
} DRM(proc_list)[] = {
	{ "name",    DRM(name_info)    },
	{ "mem",     DRM(mem_info)     },
	{ "vm",	     DRM(vm_info)      },
	{ "clients", DRM(clients_info) },
	{ "queues",  DRM(queues_info)  },
	{ "bufs",    DRM(bufs_info)    },
#if DRM_DEBUG_CODE
	{ "vma",     DRM(vma_info)     },
#endif
};
#define DRM_PROC_ENTRIES (sizeof(DRM(proc_list))/sizeof(DRM(proc_list)[0]))

/**
 * Initialize the DRI proc filesystem for a device.
 *
 * \param dev DRM device.
 * \param minor device minor number.
 * \param root DRI proc dir entry.
 * \param dev_root resulting DRI device proc dir entry.
 * \return root entry pointer on success, or NULL on failure.
 * 
 * Create the DRI proc root entry "/proc/dri", the device proc root entry
 * "/proc/dri/%minor%/", and each entry in proc_list as
 * "/proc/dri/%minor%/%name%".
 */
struct proc_dir_entry *DRM(proc_init)(drm_device_t *dev, int minor,
				      struct proc_dir_entry *root,
				      struct proc_dir_entry **dev_root)
{
	struct proc_dir_entry *ent;
	int		      i, j;
	char                  name[64];

	if (!minor) root = create_proc_entry("dri", S_IFDIR, NULL);
	if (!root) {
		DRM_ERROR("Cannot create /proc/dri\n");
		return NULL;
	}

	sprintf(name, "%d", minor);
	*dev_root = create_proc_entry(name, S_IFDIR, root);
	if (!*dev_root) {
		DRM_ERROR("Cannot create /proc/dri/%s\n", name);
		return NULL;
	}

	for (i = 0; i < DRM_PROC_ENTRIES; i++) {
		ent = create_proc_entry(DRM(proc_list)[i].name,
					S_IFREG|S_IRUGO, *dev_root);
		if (!ent) {
			DRM_ERROR("Cannot create /proc/dri/%s/%s\n",
				  name, DRM(proc_list)[i].name);
			for (j = 0; j < i; j++)
				remove_proc_entry(DRM(proc_list)[i].name,
						  *dev_root);
			remove_proc_entry(name, root);
			if (!minor) remove_proc_entry("dri", NULL);
			return NULL;
		}
		ent->read_proc = DRM(proc_list)[i].f;
		ent->data      = dev;
	}

	return root;
}


/**
 * Cleanup the proc filesystem resources.
 *
 * \param minor device minor number.
 * \param root DRI proc dir entry.
 * \param dev_root DRI device proc dir entry.
 * \return always zero.
 *
 * Remove all proc entries created by proc_init().
 */
int DRM(proc_cleanup)(int minor, struct proc_dir_entry *root,
		      struct proc_dir_entry *dev_root)
{
	int  i;
	char name[64];

	if (!root || !dev_root) return 0;

	for (i = 0; i < DRM_PROC_ENTRIES; i++)
		remove_proc_entry(DRM(proc_list)[i].name, dev_root);
	sprintf(name, "%d", minor);
	remove_proc_entry(name, root);
	if (!minor) remove_proc_entry("dri", NULL);

	return 0;
}

/**
 * Called when "/proc/dri/.../name" is read.
 * 
 * \param buf output buffer.
 * \param start start of output data.
 * \param offset requested start offset.
 * \param request requested number of bytes.
 * \param eof whether there is no more data to return.
 * \param data private data.
 * \return number of written bytes.
 * 
 * Prints the device name together with the bus id if available.
 */
static int DRM(name_info)(char *buf, char **start, off_t offset, int request,
			  int *eof, void *data)
{
	drm_device_t *dev = (drm_device_t *)data;
	int          len  = 0;

	if (offset > DRM_PROC_LIMIT) {
		*eof = 1;
		return 0;
	}

	*start = &buf[offset];
	*eof   = 0;

	if (dev->unique) {
		DRM_PROC_PRINT("%s 0x%lx %s\n",
			       dev->name, (long)dev->device, dev->unique);
	} else {
		DRM_PROC_PRINT("%s 0x%lx\n", dev->name, (long)dev->device);
	}

	if (len > request + offset) return request;
	*eof = 1;
	return len - offset;
}

/**
 * Called when "/proc/dri/.../vm" is read.
 * 
 * \param buf output buffer.
 * \param start start of output data.
 * \param offset requested start offset.
 * \param request requested number of bytes.
 * \param eof whether there is no more data to return.
 * \param data private data.
 * \return number of written bytes.
 * 
 * Prints information about all mappings in drm_device::maplist.
 */
static int DRM(_vm_info)(char *buf, char **start, off_t offset, int request,
			 int *eof, void *data)
{
	drm_device_t *dev = (drm_device_t *)data;
	int          len  = 0;
	drm_map_t    *map;
	drm_map_list_t *r_list;
	struct list_head *list;

				/* Hardcoded from _DRM_FRAME_BUFFER,
                                   _DRM_REGISTERS, _DRM_SHM, _DRM_AGP, and
                                   _DRM_SCATTER_GATHER. */
	const char   *types[] = { "FB", "REG", "SHM", "AGP", "SG" };
	const char   *type;
	int	     i;

	if (offset > DRM_PROC_LIMIT) {
		*eof = 1;
		return 0;
	}

	*start = &buf[offset];
	*eof   = 0;

	DRM_PROC_PRINT("slot	 offset	      size type flags	 "
		       "address mtrr\n\n");
	i = 0;
	if (dev->maplist != NULL) list_for_each(list, &dev->maplist->head) {
		r_list = list_entry(list, drm_map_list_t, head);
		map = r_list->map;
		if(!map) continue;
		if (map->type < 0 || map->type > 4) type = "??";
		else				    type = types[map->type];
		DRM_PROC_PRINT("%4d 0x%08lx 0x%08lx %4.4s  0x%02x 0x%08lx ",
			       i,
			       map->offset,
			       map->size,
			       type,
			       map->flags,
			       (unsigned long)map->handle);
		if (map->mtrr < 0) {
			DRM_PROC_PRINT("none\n");
		} else {
			DRM_PROC_PRINT("%4d\n", map->mtrr);
		}
		i++;
	}

	if (len > request + offset) return request;
	*eof = 1;
	return len - offset;
}

/**
 * Simply calls _vm_info() while holding the drm_device::struct_sem lock.
 */
static int DRM(vm_info)(char *buf, char **start, off_t offset, int request,
			int *eof, void *data)
{
	drm_device_t *dev = (drm_device_t *)data;
	int	     ret;

	down(&dev->struct_sem);
	ret = DRM(_vm_info)(buf, start, offset, request, eof, data);
	up(&dev->struct_sem);
	return ret;
}

/**
 * Called when "/proc/dri/.../queues" is read.
 * 
 * \param buf output buffer.
 * \param start start of output data.
 * \param offset requested start offset.
 * \param request requested number of bytes.
 * \param eof whether there is no more data to return.
 * \param data private data.
 * \return number of written bytes.
 */
static int DRM(_queues_info)(char *buf, char **start, off_t offset,
			     int request, int *eof, void *data)
{
	drm_device_t *dev = (drm_device_t *)data;
	int          len  = 0;
	int	     i;
	drm_queue_t  *q;

	if (offset > DRM_PROC_LIMIT) {
		*eof = 1;
		return 0;
	}

	*start = &buf[offset];
	*eof   = 0;

	DRM_PROC_PRINT("  ctx/flags   use   fin"
		       "   blk/rw/rwf  wait    flushed	   queued"
		       "      locks\n\n");
	for (i = 0; i < dev->queue_count; i++) {
		q = dev->queuelist[i];
		atomic_inc(&q->use_count);
		DRM_PROC_PRINT_RET(atomic_dec(&q->use_count),
				   "%5d/0x%03x %5d %5d"
				   " %5d/%c%c/%c%c%c %5Zd\n",
				   i,
				   q->flags,
				   atomic_read(&q->use_count),
				   atomic_read(&q->finalization),
				   atomic_read(&q->block_count),
				   atomic_read(&q->block_read) ? 'r' : '-',
				   atomic_read(&q->block_write) ? 'w' : '-',
				   waitqueue_active(&q->read_queue) ? 'r':'-',
				   waitqueue_active(&q->write_queue) ? 'w':'-',
				   waitqueue_active(&q->flush_queue) ? 'f':'-',
				   DRM_BUFCOUNT(&q->waitlist));
		atomic_dec(&q->use_count);
	}

	if (len > request + offset) return request;
	*eof = 1;
	return len - offset;
}

/**
 * Simply calls _queues_info() while holding the drm_device::struct_sem lock.
 */
static int DRM(queues_info)(char *buf, char **start, off_t offset, int request,
			    int *eof, void *data)
{
	drm_device_t *dev = (drm_device_t *)data;
	int	     ret;

	down(&dev->struct_sem);
	ret = DRM(_queues_info)(buf, start, offset, request, eof, data);
	up(&dev->struct_sem);
	return ret;
}

/**
 * Called when "/proc/dri/.../bufs" is read.
 * 
 * \param buf output buffer.
 * \param start start of output data.
 * \param offset requested start offset.
 * \param request requested number of bytes.
 * \param eof whether there is no more data to return.
 * \param data private data.
 * \return number of written bytes.
 */
static int DRM(_bufs_info)(char *buf, char **start, off_t offset, int request,
			   int *eof, void *data)
{
	drm_device_t	 *dev = (drm_device_t *)data;
	int              len  = 0;
	drm_device_dma_t *dma = dev->dma;
	int		 i;

	if (!dma || offset > DRM_PROC_LIMIT) {
		*eof = 1;
		return 0;
	}

	*start = &buf[offset];
	*eof   = 0;

	DRM_PROC_PRINT(" o     size count  free	 segs pages    kB\n\n");
	for (i = 0; i <= DRM_MAX_ORDER; i++) {
		if (dma->bufs[i].buf_count)
			DRM_PROC_PRINT("%2d %8d %5d %5d %5d %5d %5ld\n",
				       i,
				       dma->bufs[i].buf_size,
				       dma->bufs[i].buf_count,
				       atomic_read(&dma->bufs[i]
						   .freelist.count),
				       dma->bufs[i].seg_count,
				       dma->bufs[i].seg_count
				       *(1 << dma->bufs[i].page_order),
				       (dma->bufs[i].seg_count
					* (1 << dma->bufs[i].page_order))
				       * PAGE_SIZE / 1024);
	}
	DRM_PROC_PRINT("\n");
	for (i = 0; i < dma->buf_count; i++) {
		if (i && !(i%32)) DRM_PROC_PRINT("\n");
		DRM_PROC_PRINT(" %d", dma->buflist[i]->list);
	}
	DRM_PROC_PRINT("\n");

	if (len > request + offset) return request;
	*eof = 1;
	return len - offset;
}

/**
 * Simply calls _bufs_info() while holding the drm_device::struct_sem lock.
 */
static int DRM(bufs_info)(char *buf, char **start, off_t offset, int request,
			  int *eof, void *data)
{
	drm_device_t *dev = (drm_device_t *)data;
	int	     ret;

	down(&dev->struct_sem);
	ret = DRM(_bufs_info)(buf, start, offset, request, eof, data);
	up(&dev->struct_sem);
	return ret;
}

/**
 * Called when "/proc/dri/.../clients" is read.
 * 
 * \param buf output buffer.
 * \param start start of output data.
 * \param offset requested start offset.
 * \param request requested number of bytes.
 * \param eof whether there is no more data to return.
 * \param data private data.
 * \return number of written bytes.
 */
static int DRM(_clients_info)(char *buf, char **start, off_t offset,
			      int request, int *eof, void *data)
{
	drm_device_t *dev = (drm_device_t *)data;
	int          len  = 0;
	drm_file_t   *priv;

	if (offset > DRM_PROC_LIMIT) {
		*eof = 1;
		return 0;
	}

	*start = &buf[offset];
	*eof   = 0;

	DRM_PROC_PRINT("a dev	pid    uid	magic	  ioctls\n\n");
	for (priv = dev->file_first; priv; priv = priv->next) {
		DRM_PROC_PRINT("%c %3d %5d %5d %10u %10lu\n",
			       priv->authenticated ? 'y' : 'n',
			       priv->minor,
			       priv->pid,
			       priv->uid,
			       priv->magic,
			       priv->ioctl_count);
	}

	if (len > request + offset) return request;
	*eof = 1;
	return len - offset;
}

/**
 * Simply calls _clients_info() while holding the drm_device::struct_sem lock.
 */
static int DRM(clients_info)(char *buf, char **start, off_t offset,
			     int request, int *eof, void *data)
{
	drm_device_t *dev = (drm_device_t *)data;
	int	     ret;

	down(&dev->struct_sem);
	ret = DRM(_clients_info)(buf, start, offset, request, eof, data);
	up(&dev->struct_sem);
	return ret;
}

#if DRM_DEBUG_CODE

static int DRM(_vma_info)(char *buf, char **start, off_t offset, int request,
			  int *eof, void *data)
{
	drm_device_t	      *dev = (drm_device_t *)data;
	int                   len  = 0;
	drm_vma_entry_t	      *pt;
	struct vm_area_struct *vma;
#if defined(__i386__)
	unsigned int	      pgprot;
#endif

	if (offset > DRM_PROC_LIMIT) {
		*eof = 1;
		return 0;
	}

	*start = &buf[offset];
	*eof   = 0;

	DRM_PROC_PRINT("vma use count: %d, high_memory = %p, 0x%08lx\n",
		       atomic_read(&dev->vma_count),
		       high_memory, virt_to_phys(high_memory));
	for (pt = dev->vmalist; pt; pt = pt->next) {
		if (!(vma = pt->vma)) continue;
		DRM_PROC_PRINT("\n%5d 0x%08lx-0x%08lx %c%c%c%c%c%c 0x%08lx",
			       pt->pid,
			       vma->vm_start,
			       vma->vm_end,
			       vma->vm_flags & VM_READ	   ? 'r' : '-',
			       vma->vm_flags & VM_WRITE	   ? 'w' : '-',
			       vma->vm_flags & VM_EXEC	   ? 'x' : '-',
			       vma->vm_flags & VM_MAYSHARE ? 's' : 'p',
			       vma->vm_flags & VM_LOCKED   ? 'l' : '-',
			       vma->vm_flags & VM_IO	   ? 'i' : '-',
			       VM_OFFSET(vma));

#if defined(__i386__)
		pgprot = pgprot_val(vma->vm_page_prot);
		DRM_PROC_PRINT(" %c%c%c%c%c%c%c%c%c",
			       pgprot & _PAGE_PRESENT  ? 'p' : '-',
			       pgprot & _PAGE_RW       ? 'w' : 'r',
			       pgprot & _PAGE_USER     ? 'u' : 's',
			       pgprot & _PAGE_PWT      ? 't' : 'b',
			       pgprot & _PAGE_PCD      ? 'u' : 'c',
			       pgprot & _PAGE_ACCESSED ? 'a' : '-',
			       pgprot & _PAGE_DIRTY    ? 'd' : '-',
			       pgprot & _PAGE_PSE      ? 'm' : 'k',
			       pgprot & _PAGE_GLOBAL   ? 'g' : 'l' );
#endif
		DRM_PROC_PRINT("\n");
	}

	if (len > request + offset) return request;
	*eof = 1;
	return len - offset;
}

static int DRM(vma_info)(char *buf, char **start, off_t offset, int request,
			 int *eof, void *data)
{
	drm_device_t *dev = (drm_device_t *)data;
	int	     ret;

	down(&dev->struct_sem);
	ret = DRM(_vma_info)(buf, start, offset, request, eof, data);
	up(&dev->struct_sem);
	return ret;
}
#endif