2005-04-16 15:20:36 -07:00
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/**
|
2005-09-24 21:28:13 -07:00
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* \file drm_fops.c
|
2005-04-16 15:20:36 -07:00
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* File operations for DRM
|
2005-09-24 21:28:13 -07:00
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*
|
2005-04-16 15:20:36 -07:00
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* \author Rickard E. (Rik) Faith <faith@valinux.com>
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* \author Daryll Strauss <daryll@valinux.com>
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* \author Gareth Hughes <gareth@valinux.com>
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*/
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/*
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* Created: Mon Jan 4 08:58:31 1999 by faith@valinux.com
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*
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* Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
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* Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
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* All Rights Reserved.
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*
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* Permission is hereby granted, free of charge, to any person obtaining a
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* copy of this software and associated documentation files (the "Software"),
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* to deal in the Software without restriction, including without limitation
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* the rights to use, copy, modify, merge, publish, distribute, sublicense,
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* and/or sell copies of the Software, and to permit persons to whom the
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* Software is furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice (including the next
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* paragraph) shall be included in all copies or substantial portions of the
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* Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
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* VA LINUX SYSTEMS AND/OR ITS SUPPLIERS BE LIABLE FOR ANY CLAIM, DAMAGES OR
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* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
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* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
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* OTHER DEALINGS IN THE SOFTWARE.
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*/
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#include "drmP.h"
|
2006-01-02 03:32:48 -07:00
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|
#include "drm_sarea.h"
|
2005-04-16 15:20:36 -07:00
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|
#include <linux/poll.h>
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|
2005-09-24 21:28:13 -07:00
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|
|
static int drm_open_helper(struct inode *inode, struct file *filp,
|
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|
|
drm_device_t * dev);
|
2005-07-07 04:03:38 -07:00
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|
|
2005-09-24 21:28:13 -07:00
|
|
|
static int drm_setup(drm_device_t * dev)
|
2005-04-16 15:20:36 -07:00
|
|
|
{
|
2006-01-02 03:32:48 -07:00
|
|
|
drm_local_map_t *map;
|
2005-04-16 15:20:36 -07:00
|
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|
int i;
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|
|
int ret;
|
2007-02-17 23:13:39 -07:00
|
|
|
u32 sareapage;
|
2005-04-16 15:20:36 -07:00
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|
|
2005-11-10 04:16:34 -07:00
|
|
|
if (dev->driver->firstopen) {
|
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|
|
ret = dev->driver->firstopen(dev);
|
2005-09-24 21:28:13 -07:00
|
|
|
if (ret != 0)
|
2005-04-16 15:20:36 -07:00
|
|
|
return ret;
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|
|
|
}
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|
2006-08-17 23:37:10 -07:00
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|
dev->magicfree.next = NULL;
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|
|
|
2006-01-02 03:32:48 -07:00
|
|
|
/* prebuild the SAREA */
|
2007-03-18 15:08:21 -07:00
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|
|
sareapage = max_t(unsigned, SAREA_MAX, PAGE_SIZE);
|
2007-02-17 23:13:39 -07:00
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|
|
i = drm_addmap(dev, 0, sareapage, _DRM_SHM, _DRM_CONTAINS_LOCK, &map);
|
2006-01-02 03:32:48 -07:00
|
|
|
if (i != 0)
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|
|
return i;
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|
2005-09-24 21:28:13 -07:00
|
|
|
atomic_set(&dev->ioctl_count, 0);
|
|
|
|
atomic_set(&dev->vma_count, 0);
|
2005-04-16 15:20:36 -07:00
|
|
|
dev->buf_use = 0;
|
2005-09-24 21:28:13 -07:00
|
|
|
atomic_set(&dev->buf_alloc, 0);
|
2005-04-16 15:20:36 -07:00
|
|
|
|
2005-09-24 21:28:13 -07:00
|
|
|
if (drm_core_check_feature(dev, DRIVER_HAVE_DMA)) {
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|
|
|
i = drm_dma_setup(dev);
|
|
|
|
if (i < 0)
|
2005-04-16 15:20:36 -07:00
|
|
|
return i;
|
|
|
|
}
|
|
|
|
|
2006-08-07 03:07:43 -07:00
|
|
|
for (i = 0; i < ARRAY_SIZE(dev->counts); i++)
|
2005-09-24 21:28:13 -07:00
|
|
|
atomic_set(&dev->counts[i], 0);
|
2005-04-16 15:20:36 -07:00
|
|
|
|
2006-08-07 05:22:10 -07:00
|
|
|
drm_ht_create(&dev->magiclist, DRM_MAGIC_HASH_ORDER);
|
|
|
|
INIT_LIST_HEAD(&dev->magicfree);
|
2005-04-16 15:20:36 -07:00
|
|
|
|
2005-09-24 21:28:13 -07:00
|
|
|
dev->ctxlist = drm_alloc(sizeof(*dev->ctxlist), DRM_MEM_CTXLIST);
|
|
|
|
if (dev->ctxlist == NULL)
|
|
|
|
return -ENOMEM;
|
2005-04-16 15:20:36 -07:00
|
|
|
memset(dev->ctxlist, 0, sizeof(*dev->ctxlist));
|
|
|
|
INIT_LIST_HEAD(&dev->ctxlist->head);
|
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|
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|
|
dev->vmalist = NULL;
|
2007-02-17 23:13:39 -07:00
|
|
|
dev->sigdata.lock = NULL;
|
2005-09-24 21:28:13 -07:00
|
|
|
init_waitqueue_head(&dev->lock.lock_queue);
|
2005-04-16 15:20:36 -07:00
|
|
|
dev->queue_count = 0;
|
|
|
|
dev->queue_reserved = 0;
|
|
|
|
dev->queue_slots = 0;
|
|
|
|
dev->queuelist = NULL;
|
|
|
|
dev->irq_enabled = 0;
|
|
|
|
dev->context_flag = 0;
|
|
|
|
dev->interrupt_flag = 0;
|
|
|
|
dev->dma_flag = 0;
|
|
|
|
dev->last_context = 0;
|
|
|
|
dev->last_switch = 0;
|
|
|
|
dev->last_checked = 0;
|
2005-09-24 21:28:13 -07:00
|
|
|
init_waitqueue_head(&dev->context_wait);
|
2005-04-16 15:20:36 -07:00
|
|
|
dev->if_version = 0;
|
|
|
|
|
|
|
|
dev->ctx_start = 0;
|
|
|
|
dev->lck_start = 0;
|
|
|
|
|
|
|
|
dev->buf_async = NULL;
|
2005-09-24 21:28:13 -07:00
|
|
|
init_waitqueue_head(&dev->buf_readers);
|
|
|
|
init_waitqueue_head(&dev->buf_writers);
|
2005-04-16 15:20:36 -07:00
|
|
|
|
2005-09-24 21:28:13 -07:00
|
|
|
DRM_DEBUG("\n");
|
2005-04-16 15:20:36 -07:00
|
|
|
|
|
|
|
/*
|
|
|
|
* The kernel's context could be created here, but is now created
|
2005-09-24 21:28:13 -07:00
|
|
|
* in drm_dma_enqueue. This is more resource-efficient for
|
2005-04-16 15:20:36 -07:00
|
|
|
* hardware that does not do DMA, but may mean that
|
|
|
|
* drm_select_queue fails between the time the interrupt is
|
|
|
|
* initialized and the time the queues are initialized.
|
|
|
|
*/
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Open file.
|
2005-09-24 21:28:13 -07:00
|
|
|
*
|
2005-04-16 15:20:36 -07:00
|
|
|
* \param inode device inode
|
|
|
|
* \param filp file pointer.
|
|
|
|
* \return zero on success or a negative number on failure.
|
|
|
|
*
|
|
|
|
* Searches the DRM device with the same minor number, calls open_helper(), and
|
|
|
|
* increments the device open count. If the open count was previous at zero,
|
|
|
|
* i.e., it's the first that the device is open, then calls setup().
|
|
|
|
*/
|
2005-09-24 21:28:13 -07:00
|
|
|
int drm_open(struct inode *inode, struct file *filp)
|
2005-04-16 15:20:36 -07:00
|
|
|
{
|
|
|
|
drm_device_t *dev = NULL;
|
|
|
|
int minor = iminor(inode);
|
|
|
|
int retcode = 0;
|
|
|
|
|
|
|
|
if (!((minor >= 0) && (minor < drm_cards_limit)))
|
|
|
|
return -ENODEV;
|
2005-09-24 21:28:13 -07:00
|
|
|
|
2005-04-16 15:20:36 -07:00
|
|
|
if (!drm_heads[minor])
|
|
|
|
return -ENODEV;
|
|
|
|
|
|
|
|
if (!(dev = drm_heads[minor]->dev))
|
|
|
|
return -ENODEV;
|
2005-09-24 21:28:13 -07:00
|
|
|
|
|
|
|
retcode = drm_open_helper(inode, filp, dev);
|
|
|
|
if (!retcode) {
|
|
|
|
atomic_inc(&dev->counts[_DRM_STAT_OPENS]);
|
|
|
|
spin_lock(&dev->count_lock);
|
|
|
|
if (!dev->open_count++) {
|
|
|
|
spin_unlock(&dev->count_lock);
|
|
|
|
return drm_setup(dev);
|
2005-04-16 15:20:36 -07:00
|
|
|
}
|
2005-09-24 21:28:13 -07:00
|
|
|
spin_unlock(&dev->count_lock);
|
2005-04-16 15:20:36 -07:00
|
|
|
}
|
|
|
|
|
|
|
|
return retcode;
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(drm_open);
|
|
|
|
|
2006-01-02 03:32:48 -07:00
|
|
|
/**
|
|
|
|
* File \c open operation.
|
|
|
|
*
|
|
|
|
* \param inode device inode.
|
|
|
|
* \param filp file pointer.
|
|
|
|
*
|
|
|
|
* Puts the dev->fops corresponding to the device minor number into
|
|
|
|
* \p filp, call the \c open method, and restore the file operations.
|
|
|
|
*/
|
|
|
|
int drm_stub_open(struct inode *inode, struct file *filp)
|
|
|
|
{
|
|
|
|
drm_device_t *dev = NULL;
|
|
|
|
int minor = iminor(inode);
|
|
|
|
int err = -ENODEV;
|
2006-03-28 02:56:41 -07:00
|
|
|
const struct file_operations *old_fops;
|
2006-01-02 03:32:48 -07:00
|
|
|
|
|
|
|
DRM_DEBUG("\n");
|
|
|
|
|
|
|
|
if (!((minor >= 0) && (minor < drm_cards_limit)))
|
|
|
|
return -ENODEV;
|
|
|
|
|
|
|
|
if (!drm_heads[minor])
|
|
|
|
return -ENODEV;
|
|
|
|
|
|
|
|
if (!(dev = drm_heads[minor]->dev))
|
|
|
|
return -ENODEV;
|
|
|
|
|
|
|
|
old_fops = filp->f_op;
|
|
|
|
filp->f_op = fops_get(&dev->driver->fops);
|
|
|
|
if (filp->f_op->open && (err = filp->f_op->open(inode, filp))) {
|
|
|
|
fops_put(filp->f_op);
|
|
|
|
filp->f_op = fops_get(old_fops);
|
|
|
|
}
|
|
|
|
fops_put(old_fops);
|
|
|
|
|
|
|
|
return err;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Check whether DRI will run on this CPU.
|
|
|
|
*
|
|
|
|
* \return non-zero if the DRI will run on this CPU, or zero otherwise.
|
|
|
|
*/
|
|
|
|
static int drm_cpu_valid(void)
|
|
|
|
{
|
|
|
|
#if defined(__i386__)
|
|
|
|
if (boot_cpu_data.x86 == 3)
|
|
|
|
return 0; /* No cmpxchg on a 386 */
|
|
|
|
#endif
|
|
|
|
#if defined(__sparc__) && !defined(__sparc_v9__)
|
|
|
|
return 0; /* No cmpxchg before v9 sparc. */
|
|
|
|
#endif
|
|
|
|
return 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Called whenever a process opens /dev/drm.
|
|
|
|
*
|
|
|
|
* \param inode device inode.
|
|
|
|
* \param filp file pointer.
|
|
|
|
* \param dev device.
|
|
|
|
* \return zero on success or a negative number on failure.
|
|
|
|
*
|
|
|
|
* Creates and initializes a drm_file structure for the file private data in \p
|
|
|
|
* filp and add it into the double linked list in \p dev.
|
|
|
|
*/
|
|
|
|
static int drm_open_helper(struct inode *inode, struct file *filp,
|
|
|
|
drm_device_t * dev)
|
|
|
|
{
|
|
|
|
int minor = iminor(inode);
|
|
|
|
drm_file_t *priv;
|
|
|
|
int ret;
|
|
|
|
|
|
|
|
if (filp->f_flags & O_EXCL)
|
|
|
|
return -EBUSY; /* No exclusive opens */
|
|
|
|
if (!drm_cpu_valid())
|
|
|
|
return -EINVAL;
|
|
|
|
|
|
|
|
DRM_DEBUG("pid = %d, minor = %d\n", current->pid, minor);
|
|
|
|
|
|
|
|
priv = drm_alloc(sizeof(*priv), DRM_MEM_FILES);
|
|
|
|
if (!priv)
|
|
|
|
return -ENOMEM;
|
|
|
|
|
|
|
|
memset(priv, 0, sizeof(*priv));
|
|
|
|
filp->private_data = priv;
|
|
|
|
priv->uid = current->euid;
|
|
|
|
priv->pid = current->pid;
|
|
|
|
priv->minor = minor;
|
|
|
|
priv->head = drm_heads[minor];
|
|
|
|
priv->ioctl_count = 0;
|
|
|
|
/* for compatibility root is always authenticated */
|
|
|
|
priv->authenticated = capable(CAP_SYS_ADMIN);
|
|
|
|
priv->lock_count = 0;
|
|
|
|
|
|
|
|
if (dev->driver->open) {
|
|
|
|
ret = dev->driver->open(dev, priv);
|
|
|
|
if (ret < 0)
|
|
|
|
goto out_free;
|
|
|
|
}
|
|
|
|
|
2006-02-02 01:37:46 -07:00
|
|
|
mutex_lock(&dev->struct_mutex);
|
2006-01-02 03:32:48 -07:00
|
|
|
if (!dev->file_last) {
|
|
|
|
priv->next = NULL;
|
|
|
|
priv->prev = NULL;
|
|
|
|
dev->file_first = priv;
|
|
|
|
dev->file_last = priv;
|
|
|
|
/* first opener automatically becomes master */
|
|
|
|
priv->master = 1;
|
|
|
|
} else {
|
|
|
|
priv->next = NULL;
|
|
|
|
priv->prev = dev->file_last;
|
|
|
|
dev->file_last->next = priv;
|
|
|
|
dev->file_last = priv;
|
|
|
|
}
|
2006-02-02 01:37:46 -07:00
|
|
|
mutex_unlock(&dev->struct_mutex);
|
2006-01-02 03:32:48 -07:00
|
|
|
|
|
|
|
#ifdef __alpha__
|
|
|
|
/*
|
|
|
|
* Default the hose
|
|
|
|
*/
|
|
|
|
if (!dev->hose) {
|
|
|
|
struct pci_dev *pci_dev;
|
|
|
|
pci_dev = pci_get_class(PCI_CLASS_DISPLAY_VGA << 8, NULL);
|
|
|
|
if (pci_dev) {
|
|
|
|
dev->hose = pci_dev->sysdata;
|
|
|
|
pci_dev_put(pci_dev);
|
|
|
|
}
|
|
|
|
if (!dev->hose) {
|
|
|
|
struct pci_bus *b = pci_bus_b(pci_root_buses.next);
|
|
|
|
if (b)
|
|
|
|
dev->hose = b->sysdata;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
#endif
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
out_free:
|
|
|
|
drm_free(priv, sizeof(*priv), DRM_MEM_FILES);
|
|
|
|
filp->private_data = NULL;
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
/** No-op. */
|
|
|
|
int drm_fasync(int fd, struct file *filp, int on)
|
|
|
|
{
|
|
|
|
drm_file_t *priv = filp->private_data;
|
|
|
|
drm_device_t *dev = priv->head->dev;
|
|
|
|
int retcode;
|
|
|
|
|
|
|
|
DRM_DEBUG("fd = %d, device = 0x%lx\n", fd,
|
|
|
|
(long)old_encode_dev(priv->head->device));
|
|
|
|
retcode = fasync_helper(fd, filp, on, &dev->buf_async);
|
|
|
|
if (retcode < 0)
|
|
|
|
return retcode;
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(drm_fasync);
|
|
|
|
|
2005-04-16 15:20:36 -07:00
|
|
|
/**
|
|
|
|
* Release file.
|
|
|
|
*
|
|
|
|
* \param inode device inode
|
|
|
|
* \param filp file pointer.
|
|
|
|
* \return zero on success or a negative number on failure.
|
|
|
|
*
|
|
|
|
* If the hardware lock is held then free it, and take it again for the kernel
|
|
|
|
* context since it's necessary to reclaim buffers. Unlink the file private
|
|
|
|
* data from its list and free it. Decreases the open count and if it reaches
|
2005-11-10 04:16:34 -07:00
|
|
|
* zero calls drm_lastclose().
|
2005-04-16 15:20:36 -07:00
|
|
|
*/
|
2005-09-24 21:28:13 -07:00
|
|
|
int drm_release(struct inode *inode, struct file *filp)
|
2005-04-16 15:20:36 -07:00
|
|
|
{
|
|
|
|
drm_file_t *priv = filp->private_data;
|
|
|
|
drm_device_t *dev;
|
|
|
|
int retcode = 0;
|
|
|
|
|
|
|
|
lock_kernel();
|
|
|
|
dev = priv->head->dev;
|
|
|
|
|
2005-09-24 21:28:13 -07:00
|
|
|
DRM_DEBUG("open_count = %d\n", dev->open_count);
|
2005-04-16 15:20:36 -07:00
|
|
|
|
2005-11-10 04:16:34 -07:00
|
|
|
if (dev->driver->preclose)
|
|
|
|
dev->driver->preclose(dev, filp);
|
2005-04-16 15:20:36 -07:00
|
|
|
|
|
|
|
/* ========================================================
|
|
|
|
* Begin inline drm_release
|
|
|
|
*/
|
|
|
|
|
2005-09-24 21:28:13 -07:00
|
|
|
DRM_DEBUG("pid = %d, device = 0x%lx, open_count = %d\n",
|
|
|
|
current->pid, (long)old_encode_dev(priv->head->device),
|
|
|
|
dev->open_count);
|
|
|
|
|
2007-03-22 19:28:33 -07:00
|
|
|
if (dev->driver->reclaim_buffers_locked && dev->lock.hw_lock) {
|
|
|
|
if (drm_i_have_hw_lock(filp)) {
|
2005-11-10 04:16:34 -07:00
|
|
|
dev->driver->reclaim_buffers_locked(dev, filp);
|
2007-03-22 19:28:33 -07:00
|
|
|
} else {
|
|
|
|
unsigned long _end=jiffies + 3*DRM_HZ;
|
|
|
|
int locked = 0;
|
|
|
|
|
|
|
|
drm_idlelock_take(&dev->lock);
|
|
|
|
|
|
|
|
/*
|
|
|
|
* Wait for a while.
|
|
|
|
*/
|
|
|
|
|
|
|
|
do{
|
|
|
|
spin_lock(&dev->lock.spinlock);
|
|
|
|
locked = dev->lock.idle_has_lock;
|
|
|
|
spin_unlock(&dev->lock.spinlock);
|
|
|
|
if (locked)
|
|
|
|
break;
|
|
|
|
schedule();
|
|
|
|
} while (!time_after_eq(jiffies, _end));
|
|
|
|
|
|
|
|
if (!locked) {
|
|
|
|
DRM_ERROR("reclaim_buffers_locked() deadlock. Please rework this\n"
|
|
|
|
"\tdriver to use reclaim_buffers_idlelocked() instead.\n"
|
|
|
|
"\tI will go on reclaiming the buffers anyway.\n");
|
2005-04-16 15:20:36 -07:00
|
|
|
}
|
2007-03-22 19:28:33 -07:00
|
|
|
|
2005-11-10 04:16:34 -07:00
|
|
|
dev->driver->reclaim_buffers_locked(dev, filp);
|
2007-03-22 19:28:33 -07:00
|
|
|
drm_idlelock_release(&dev->lock);
|
2005-04-16 15:20:36 -07:00
|
|
|
}
|
|
|
|
}
|
2005-09-24 21:28:13 -07:00
|
|
|
|
2007-03-22 19:28:33 -07:00
|
|
|
if (dev->driver->reclaim_buffers_idlelocked && dev->lock.hw_lock) {
|
|
|
|
|
|
|
|
drm_idlelock_take(&dev->lock);
|
|
|
|
dev->driver->reclaim_buffers_idlelocked(dev, filp);
|
|
|
|
drm_idlelock_release(&dev->lock);
|
|
|
|
|
|
|
|
}
|
|
|
|
|
|
|
|
if (drm_i_have_hw_lock(filp)) {
|
|
|
|
DRM_DEBUG("File %p released, freeing lock for context %d\n",
|
|
|
|
filp, _DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock));
|
|
|
|
|
|
|
|
drm_lock_free(&dev->lock,
|
|
|
|
_DRM_LOCKING_CONTEXT(dev->lock.hw_lock->lock));
|
|
|
|
}
|
|
|
|
|
|
|
|
|
2005-11-10 04:16:34 -07:00
|
|
|
if (drm_core_check_feature(dev, DRIVER_HAVE_DMA) &&
|
|
|
|
!dev->driver->reclaim_buffers_locked) {
|
2005-04-16 15:20:36 -07:00
|
|
|
dev->driver->reclaim_buffers(dev, filp);
|
|
|
|
}
|
|
|
|
|
2005-09-24 21:28:13 -07:00
|
|
|
drm_fasync(-1, filp, 0);
|
2005-04-16 15:20:36 -07:00
|
|
|
|
2006-02-02 01:37:46 -07:00
|
|
|
mutex_lock(&dev->ctxlist_mutex);
|
2005-09-24 21:28:13 -07:00
|
|
|
if (dev->ctxlist && (!list_empty(&dev->ctxlist->head))) {
|
2005-04-16 15:20:36 -07:00
|
|
|
drm_ctx_list_t *pos, *n;
|
|
|
|
|
2005-09-24 21:28:13 -07:00
|
|
|
list_for_each_entry_safe(pos, n, &dev->ctxlist->head, head) {
|
|
|
|
if (pos->tag == priv &&
|
|
|
|
pos->handle != DRM_KERNEL_CONTEXT) {
|
2005-04-16 15:20:36 -07:00
|
|
|
if (dev->driver->context_dtor)
|
2005-09-24 21:28:13 -07:00
|
|
|
dev->driver->context_dtor(dev,
|
|
|
|
pos->handle);
|
2005-04-16 15:20:36 -07:00
|
|
|
|
2005-09-24 21:28:13 -07:00
|
|
|
drm_ctxbitmap_free(dev, pos->handle);
|
2005-04-16 15:20:36 -07:00
|
|
|
|
2005-09-24 21:28:13 -07:00
|
|
|
list_del(&pos->head);
|
|
|
|
drm_free(pos, sizeof(*pos), DRM_MEM_CTXLIST);
|
2005-04-16 15:20:36 -07:00
|
|
|
--dev->ctx_count;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
2006-02-02 01:37:46 -07:00
|
|
|
mutex_unlock(&dev->ctxlist_mutex);
|
2005-04-16 15:20:36 -07:00
|
|
|
|
2006-02-02 01:37:46 -07:00
|
|
|
mutex_lock(&dev->struct_mutex);
|
2005-09-24 21:28:13 -07:00
|
|
|
if (priv->remove_auth_on_close == 1) {
|
2005-04-16 15:20:36 -07:00
|
|
|
drm_file_t *temp = dev->file_first;
|
2005-09-24 21:28:13 -07:00
|
|
|
while (temp) {
|
2005-04-16 15:20:36 -07:00
|
|
|
temp->authenticated = 0;
|
|
|
|
temp = temp->next;
|
|
|
|
}
|
|
|
|
}
|
2005-09-24 21:28:13 -07:00
|
|
|
if (priv->prev) {
|
2005-04-16 15:20:36 -07:00
|
|
|
priv->prev->next = priv->next;
|
|
|
|
} else {
|
2005-09-24 21:28:13 -07:00
|
|
|
dev->file_first = priv->next;
|
2005-04-16 15:20:36 -07:00
|
|
|
}
|
2005-09-24 21:28:13 -07:00
|
|
|
if (priv->next) {
|
2005-04-16 15:20:36 -07:00
|
|
|
priv->next->prev = priv->prev;
|
|
|
|
} else {
|
2005-09-24 21:28:13 -07:00
|
|
|
dev->file_last = priv->prev;
|
2005-04-16 15:20:36 -07:00
|
|
|
}
|
2006-02-02 01:37:46 -07:00
|
|
|
mutex_unlock(&dev->struct_mutex);
|
2005-09-24 21:28:13 -07:00
|
|
|
|
2005-11-10 04:16:34 -07:00
|
|
|
if (dev->driver->postclose)
|
|
|
|
dev->driver->postclose(dev, priv);
|
2005-09-24 21:28:13 -07:00
|
|
|
drm_free(priv, sizeof(*priv), DRM_MEM_FILES);
|
2005-04-16 15:20:36 -07:00
|
|
|
|
|
|
|
/* ========================================================
|
|
|
|
* End inline drm_release
|
|
|
|
*/
|
|
|
|
|
2005-09-24 21:28:13 -07:00
|
|
|
atomic_inc(&dev->counts[_DRM_STAT_CLOSES]);
|
|
|
|
spin_lock(&dev->count_lock);
|
|
|
|
if (!--dev->open_count) {
|
|
|
|
if (atomic_read(&dev->ioctl_count) || dev->blocked) {
|
|
|
|
DRM_ERROR("Device busy: %d %d\n",
|
|
|
|
atomic_read(&dev->ioctl_count), dev->blocked);
|
|
|
|
spin_unlock(&dev->count_lock);
|
2005-04-16 15:20:36 -07:00
|
|
|
unlock_kernel();
|
|
|
|
return -EBUSY;
|
|
|
|
}
|
2005-09-24 21:28:13 -07:00
|
|
|
spin_unlock(&dev->count_lock);
|
2005-04-16 15:20:36 -07:00
|
|
|
unlock_kernel();
|
2005-11-10 04:16:34 -07:00
|
|
|
return drm_lastclose(dev);
|
2005-04-16 15:20:36 -07:00
|
|
|
}
|
2005-09-24 21:28:13 -07:00
|
|
|
spin_unlock(&dev->count_lock);
|
2005-04-16 15:20:36 -07:00
|
|
|
|
|
|
|
unlock_kernel();
|
|
|
|
|
|
|
|
return retcode;
|
|
|
|
}
|
|
|
|
EXPORT_SYMBOL(drm_release);
|
|
|
|
|
|
|
|
/** No-op. */
|
|
|
|
unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait)
|
|
|
|
{
|
|
|
|
return 0;
|
|
|
|
}
|
2005-09-24 21:28:13 -07:00
|
|
|
EXPORT_SYMBOL(drm_poll);
|