#include <linux/module.h>
#include "drm_legacy.h"
#include "drm_internal.h"
+#include "drm_crtc_internal.h"
/* from BKL pushdown */
DEFINE_MUTEX(drm_global_mutex);
* specific implementations. For GEM-based drivers this is drm_gem_mmap().
*
* No other file operations are supported by the DRM userspace API. Overall the
- * following is an example #file_operations structure:
+ * following is an example #file_operations structure::
*
* static const example_drm_fops = {
* .owner = THIS_MODULE,
return 1;
}
-/*
- * drm_new_set_master - Allocate a new master object and become master for the
- * associated master realm.
- *
- * @dev: The associated device.
- * @fpriv: File private identifying the client.
- *
- * This function must be called with dev::struct_mutex held.
- * Returns negative error code on failure. Zero on success.
- */
-int drm_new_set_master(struct drm_device *dev, struct drm_file *fpriv)
-{
- struct drm_master *old_master;
- int ret;
-
- lockdep_assert_held_once(&dev->master_mutex);
-
- /* create a new master */
- fpriv->minor->master = drm_master_create(fpriv->minor);
- if (!fpriv->minor->master)
- return -ENOMEM;
-
- /* take another reference for the copy in the local file priv */
- old_master = fpriv->master;
- fpriv->master = drm_master_get(fpriv->minor->master);
-
- if (dev->driver->master_create) {
- ret = dev->driver->master_create(dev, fpriv->master);
- if (ret)
- goto out_err;
- }
- if (dev->driver->master_set) {
- ret = dev->driver->master_set(dev, fpriv, true);
- if (ret)
- goto out_err;
- }
-
- fpriv->is_master = 1;
- fpriv->allowed_master = 1;
- fpriv->authenticated = 1;
- if (old_master)
- drm_master_put(&old_master);
-
- return 0;
-
-out_err:
- /* drop both references and restore old master on failure */
- drm_master_put(&fpriv->minor->master);
- drm_master_put(&fpriv->master);
- fpriv->master = old_master;
-
- return ret;
-}
-
/*
* Called whenever a process opens /dev/drm.
*
goto out_prime_destroy;
}
- /* if there is no current master make this fd it, but do not create
- * any master object for render clients */
- mutex_lock(&dev->master_mutex);
- if (drm_is_primary_client(priv) && !priv->minor->master) {
- /* create a new master */
- ret = drm_new_set_master(dev, priv);
+ if (drm_is_primary_client(priv)) {
+ ret = drm_master_open(priv);
if (ret)
goto out_close;
- } else if (drm_is_primary_client(priv)) {
- /* get a reference to the master */
- priv->master = drm_master_get(priv->minor->master);
}
- mutex_unlock(&dev->master_mutex);
mutex_lock(&dev->filelist_mutex);
list_add(&priv->lhead, &dev->filelist);
return 0;
out_close:
- mutex_unlock(&dev->master_mutex);
if (dev->driver->postclose)
dev->driver->postclose(dev, priv);
out_prime_destroy:
return ret;
}
-static void drm_master_release(struct drm_device *dev, struct file *filp)
-{
- struct drm_file *file_priv = filp->private_data;
-
- if (drm_legacy_i_have_hw_lock(dev, file_priv)) {
- DRM_DEBUG("File %p released, freeing lock for context %d\n",
- filp, _DRM_LOCKING_CONTEXT(file_priv->master->lock.hw_lock->lock));
- drm_legacy_lock_free(&file_priv->master->lock,
- _DRM_LOCKING_CONTEXT(file_priv->master->lock.hw_lock->lock));
- }
-}
-
static void drm_events_release(struct drm_file *file_priv)
{
struct drm_device *dev = file_priv->minor->dev;
/* Remove unconsumed events */
list_for_each_entry_safe(e, et, &file_priv->event_list, link) {
list_del(&e->link);
- e->destroy(e);
+ kfree(e);
}
spin_unlock_irqrestore(&dev->event_lock, flags);
list_del(&file_priv->lhead);
mutex_unlock(&dev->filelist_mutex);
- mutex_lock(&dev->struct_mutex);
- if (file_priv->magic)
- idr_remove(&file_priv->master->magic_map, file_priv->magic);
- mutex_unlock(&dev->struct_mutex);
-
if (dev->driver->preclose)
dev->driver->preclose(dev, file_priv);
(long)old_encode_dev(file_priv->minor->kdev->devt),
dev->open_count);
- /* if the master has gone away we can't do anything with the lock */
- if (file_priv->minor->master)
- drm_master_release(dev, filp);
+ if (!drm_core_check_feature(dev, DRIVER_MODESET))
+ drm_legacy_lock_release(dev, filp);
if (drm_core_check_feature(dev, DRIVER_HAVE_DMA))
drm_legacy_reclaim_buffers(dev, file_priv);
drm_legacy_ctxbitmap_flush(dev, file_priv);
- mutex_lock(&dev->master_mutex);
-
- if (file_priv->is_master) {
- struct drm_master *master = file_priv->master;
-
- /*
- * Since the master is disappearing, so is the
- * possibility to lock.
- */
- mutex_lock(&dev->struct_mutex);
- 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);
- }
- mutex_unlock(&dev->struct_mutex);
-
- 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);
- }
- }
-
- /* drop the master reference held by the file priv */
- if (file_priv->master)
- drm_master_put(&file_priv->master);
- file_priv->is_master = 0;
- mutex_unlock(&dev->master_mutex);
+ if (drm_is_primary_client(file_priv))
+ drm_master_release(file_priv);
if (dev->driver->postclose)
dev->driver->postclose(dev, file_priv);
-
if (drm_core_check_feature(dev, DRIVER_PRIME))
drm_prime_destroy_file_private(&file_priv->prime);
}
ret += length;
- e->destroy(e);
+ kfree(e);
}
}
mutex_unlock(&file_priv->event_read_lock);
list_add(&p->pending_link, &file_priv->pending_event_list);
p->file_priv = file_priv;
- /* we *could* pass this in as arg, but everyone uses kfree: */
- p->destroy = (void (*) (struct drm_pending_event *)) kfree;
-
return 0;
}
EXPORT_SYMBOL(drm_event_reserve_init_locked);
list_del(&p->pending_link);
}
spin_unlock_irqrestore(&dev->event_lock, flags);
- p->destroy(p);
+ kfree(p);
}
EXPORT_SYMBOL(drm_event_cancel_free);
{
assert_spin_locked(&dev->event_lock);
+ if (e->completion) {
+ /* ->completion might disappear as soon as it signalled. */
+ complete_all(e->completion);
+ e->completion = NULL;
+ }
+
+ if (e->fence) {
+ fence_signal(e->fence);
+ fence_put(e->fence);
+ }
+
if (!e->file_priv) {
- e->destroy(e);
+ kfree(e);
return;
}
projects / cascardo / linux.git / blobdiff