*/
#include "drmP.h"
-#include "drm_sarea.h"
#include <linux/poll.h>
+#include <linux/slab.h>
#include <linux/smp_lock.h>
static int drm_open_helper(struct inode *inode, struct file *filp,
atomic_set(&dev->ioctl_count, 0);
atomic_set(&dev->vma_count, 0);
- dev->buf_use = 0;
- atomic_set(&dev->buf_alloc, 0);
- if (drm_core_check_feature(dev, DRIVER_HAVE_DMA)) {
+ if (drm_core_check_feature(dev, DRIVER_HAVE_DMA) &&
+ !drm_core_check_feature(dev, DRIVER_MODESET)) {
+ dev->buf_use = 0;
+ atomic_set(&dev->buf_alloc, 0);
+
i = drm_dma_setup(dev);
if (i < 0)
return i;
spin_lock(&dev->count_lock);
if (!dev->open_count++) {
spin_unlock(&dev->count_lock);
- return drm_setup(dev);
+ retcode = drm_setup(dev);
+ goto out;
}
spin_unlock(&dev->count_lock);
}
+out:
+ mutex_lock(&dev->struct_mutex);
+ if (minor->type == DRM_MINOR_LEGACY) {
+ BUG_ON((dev->dev_mapping != NULL) &&
+ (dev->dev_mapping != inode->i_mapping));
+ if (dev->dev_mapping == NULL)
+ dev->dev_mapping = inode->i_mapping;
+ }
+ mutex_unlock(&dev->struct_mutex);
return retcode;
}
old_fops = filp->f_op;
filp->f_op = fops_get(&dev->driver->fops);
+ if (filp->f_op == NULL) {
+ filp->f_op = old_fops;
+ goto out;
+ }
if (filp->f_op->open && (err = filp->f_op->open(inode, filp))) {
fops_put(filp->f_op);
filp->f_op = fops_get(old_fops);
DRM_DEBUG("pid = %d, minor = %d\n", task_pid_nr(current), minor_id);
- priv = drm_alloc(sizeof(*priv), DRM_MEM_FILES);
+ priv = kmalloc(sizeof(*priv), GFP_KERNEL);
if (!priv)
return -ENOMEM;
priv->lock_count = 0;
INIT_LIST_HEAD(&priv->lhead);
+ INIT_LIST_HEAD(&priv->fbs);
+ INIT_LIST_HEAD(&priv->event_list);
+ init_waitqueue_head(&priv->event_wait);
+ priv->event_space = 4096; /* set aside 4k for event buffer */
if (dev->driver->driver_features & DRIVER_GEM)
drm_gem_open(dev, priv);
/* create a new master */
priv->minor->master = drm_master_create(priv->minor);
if (!priv->minor->master) {
+ mutex_unlock(&dev->struct_mutex);
ret = -ENOMEM;
goto out_free;
}
goto out_free;
}
}
+ mutex_lock(&dev->struct_mutex);
+ if (dev->driver->master_set) {
+ ret = dev->driver->master_set(dev, priv, true);
+ if (ret) {
+ /* drop both references if this fails */
+ drm_master_put(&priv->minor->master);
+ drm_master_put(&priv->master);
+ mutex_unlock(&dev->struct_mutex);
+ goto out_free;
+ }
+ }
+ mutex_unlock(&dev->struct_mutex);
} else {
/* get a reference to the master */
priv->master = drm_master_get(priv->minor->master);
return 0;
out_free:
- drm_free(priv, sizeof(*priv), DRM_MEM_FILES);
+ kfree(priv);
filp->private_data = NULL;
return ret;
}
{
struct drm_file *priv = filp->private_data;
struct drm_device *dev = priv->minor->dev;
- int retcode;
DRM_DEBUG("fd = %d, device = 0x%lx\n", fd,
(long)old_encode_dev(priv->minor->device));
- retcode = fasync_helper(fd, filp, on, &dev->buf_async);
- if (retcode < 0)
- return retcode;
- return 0;
+ return fasync_helper(fd, filp, on, &dev->buf_async);
}
EXPORT_SYMBOL(drm_fasync);
}
}
+static void drm_events_release(struct drm_file *file_priv)
+{
+ struct drm_device *dev = file_priv->minor->dev;
+ struct drm_pending_event *e, *et;
+ struct drm_pending_vblank_event *v, *vt;
+ unsigned long flags;
+
+ spin_lock_irqsave(&dev->event_lock, flags);
+
+ /* Remove pending flips */
+ list_for_each_entry_safe(v, vt, &dev->vblank_event_list, base.link)
+ if (v->base.file_priv == file_priv) {
+ list_del(&v->base.link);
+ drm_vblank_put(dev, v->pipe);
+ v->base.destroy(&v->base);
+ }
+
+ /* Remove unconsumed events */
+ list_for_each_entry_safe(e, et, &file_priv->event_list, link)
+ e->destroy(e);
+
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+}
+
/**
* Release file.
*
if (file_priv->minor->master)
drm_master_release(dev, filp);
+ drm_events_release(file_priv);
+
if (dev->driver->driver_features & DRIVER_GEM)
drm_gem_release(dev, file_priv);
+ if (dev->driver->driver_features & DRIVER_MODESET)
+ drm_fb_release(file_priv);
+
mutex_lock(&dev->ctxlist_mutex);
if (!list_empty(&dev->ctxlist)) {
struct drm_ctx_list *pos, *n;
drm_ctxbitmap_free(dev, pos->handle);
list_del(&pos->head);
- drm_free(pos, sizeof(*pos), DRM_MEM_CTXLIST);
+ kfree(pos);
--dev->ctx_count;
}
}
mutex_lock(&dev->struct_mutex);
if (file_priv->is_master) {
+ struct drm_master *master = file_priv->master;
struct drm_file *temp;
list_for_each_entry(temp, &dev->filelist, lhead) {
if ((temp->master == file_priv->master) &&
temp->authenticated = 0;
}
+ /**
+ * Since the master is disappearing, so is the
+ * possibility to lock.
+ */
+
+ if (master->lock.hw_lock) {
+ if (dev->sigdata.lock == master->lock.hw_lock)
+ dev->sigdata.lock = NULL;
+ master->lock.hw_lock = NULL;
+ master->lock.file_priv = NULL;
+ wake_up_interruptible_all(&master->lock.lock_queue);
+ }
+
if (file_priv->minor->master == file_priv->master) {
/* drop the reference held my the minor */
+ if (dev->driver->master_drop)
+ dev->driver->master_drop(dev, file_priv, true);
drm_master_put(&file_priv->minor->master);
}
}
if (dev->driver->postclose)
dev->driver->postclose(dev, file_priv);
- drm_free(file_priv, sizeof(*file_priv), DRM_MEM_FILES);
+ kfree(file_priv);
/* ========================================================
* End inline drm_release
}
EXPORT_SYMBOL(drm_release);
-/** No-op. */
+static bool
+drm_dequeue_event(struct drm_file *file_priv,
+ size_t total, size_t max, struct drm_pending_event **out)
+{
+ struct drm_device *dev = file_priv->minor->dev;
+ struct drm_pending_event *e;
+ unsigned long flags;
+ bool ret = false;
+
+ spin_lock_irqsave(&dev->event_lock, flags);
+
+ *out = NULL;
+ if (list_empty(&file_priv->event_list))
+ goto out;
+ e = list_first_entry(&file_priv->event_list,
+ struct drm_pending_event, link);
+ if (e->event->length + total > max)
+ goto out;
+
+ file_priv->event_space += e->event->length;
+ list_del(&e->link);
+ *out = e;
+ ret = true;
+
+out:
+ spin_unlock_irqrestore(&dev->event_lock, flags);
+ return ret;
+}
+
+ssize_t drm_read(struct file *filp, char __user *buffer,
+ size_t count, loff_t *offset)
+{
+ struct drm_file *file_priv = filp->private_data;
+ struct drm_pending_event *e;
+ size_t total;
+ ssize_t ret;
+
+ ret = wait_event_interruptible(file_priv->event_wait,
+ !list_empty(&file_priv->event_list));
+ if (ret < 0)
+ return ret;
+
+ total = 0;
+ while (drm_dequeue_event(file_priv, total, count, &e)) {
+ if (copy_to_user(buffer + total,
+ e->event, e->event->length)) {
+ total = -EFAULT;
+ break;
+ }
+
+ total += e->event->length;
+ e->destroy(e);
+ }
+
+ return total;
+}
+EXPORT_SYMBOL(drm_read);
+
unsigned int drm_poll(struct file *filp, struct poll_table_struct *wait)
{
- return 0;
+ struct drm_file *file_priv = filp->private_data;
+ unsigned int mask = 0;
+
+ poll_wait(filp, &file_priv->event_wait, wait);
+
+ if (!list_empty(&file_priv->event_list))
+ mask |= POLLIN | POLLRDNORM;
+
+ return mask;
}
EXPORT_SYMBOL(drm_poll);
git://ftp.safe.ca / safe / jmp / linux-2.6 / blobdiff