#include "drmP.h"
#include "drm_core.h"
-unsigned int drm_cards_limit = 16; /* Enough for one machine */
unsigned int drm_debug = 0; /* 1 to enable debug output */
EXPORT_SYMBOL(drm_debug);
MODULE_AUTHOR(CORE_AUTHOR);
MODULE_DESCRIPTION(CORE_DESC);
MODULE_LICENSE("GPL and additional rights");
-MODULE_PARM_DESC(cards_limit, "Maximum number of graphics cards");
MODULE_PARM_DESC(debug, "Enable debug output");
-module_param_named(cards_limit, drm_cards_limit, int, S_IRUGO);
-module_param_named(debug, drm_debug, int, S_IRUGO|S_IWUGO);
+module_param_named(debug, drm_debug, int, 0600);
-drm_head_t **drm_heads;
-struct drm_sysfs_class *drm_class;
+struct idr drm_minors_idr;
+
+struct class *drm_class;
struct proc_dir_entry *drm_proc_root;
-drm_cache_t drm_cache =
-{ .mm = NULL,
- .fence_object = NULL
-};
+static int drm_minor_get_id(struct drm_device *dev, int type)
+{
+ int new_id;
+ int ret;
+ int base = 0, limit = 63;
+
+ if (type == DRM_MINOR_CONTROL) {
+ base += 64;
+ limit = base + 127;
+ } else if (type == DRM_MINOR_RENDER) {
+ base += 128;
+ limit = base + 255;
+ }
+
+again:
+ if (idr_pre_get(&drm_minors_idr, GFP_KERNEL) == 0) {
+ DRM_ERROR("Out of memory expanding drawable idr\n");
+ return -ENOMEM;
+ }
+ mutex_lock(&dev->struct_mutex);
+ ret = idr_get_new_above(&drm_minors_idr, NULL,
+ base, &new_id);
+ mutex_unlock(&dev->struct_mutex);
+ if (ret == -EAGAIN) {
+ goto again;
+ } else if (ret) {
+ return ret;
+ }
+
+ if (new_id >= limit) {
+ idr_remove(&drm_minors_idr, new_id);
+ return -EINVAL;
+ }
+ return new_id;
+}
+
+int drm_setmaster_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ if (file_priv->minor->master && file_priv->minor->master != file_priv->master)
+ return -EINVAL;
+
+ if (!file_priv->master)
+ return -EINVAL;
+
+ if (!file_priv->minor->master && file_priv->minor->master != file_priv->master)
+ file_priv->minor->master = file_priv->master;
+ return 0;
+}
+
+int drm_dropmaster_ioctl(struct drm_device *dev, void *data,
+ struct drm_file *file_priv)
+{
+ if (!file_priv->master)
+ return -EINVAL;
+ file_priv->minor->master = NULL;
+ return 0;
+}
+
+struct drm_master *drm_get_master(struct drm_minor *minor)
+{
+ struct drm_master *master;
+
+ master = drm_calloc(1, sizeof(*master), DRM_MEM_DRIVER);
+ if (!master)
+ return NULL;
+
+// INIT_LIST_HEAD(&master->filelist);
+ spin_lock_init(&master->lock.spinlock);
+ init_waitqueue_head(&master->lock.lock_queue);
+ drm_ht_create(&master->magiclist, DRM_MAGIC_HASH_ORDER);
+ INIT_LIST_HEAD(&master->magicfree);
+ master->minor = minor;
-static int drm_fill_in_dev(drm_device_t * dev, struct pci_dev *pdev,
- const struct pci_device_id *ent,
- struct drm_driver *driver)
+ list_add_tail(&master->head, &minor->master_list);
+
+ return master;
+}
+
+void drm_put_master(struct drm_master *master)
+{
+ struct drm_magic_entry *pt, *next;
+ struct drm_device *dev = master->minor->dev;
+
+ list_del(&master->head);
+
+ if (dev->driver->master_destroy)
+ dev->driver->master_destroy(dev, master);
+
+ if (master->unique) {
+ drm_free(master->unique, strlen(master->unique) + 1, DRM_MEM_DRIVER);
+ master->unique = NULL;
+ master->unique_len = 0;
+ }
+
+ list_for_each_entry_safe(pt, next, &master->magicfree, head) {
+ list_del(&pt->head);
+ drm_ht_remove_item(&master->magiclist, &pt->hash_item);
+ drm_free(pt, sizeof(*pt), DRM_MEM_MAGIC);
+ }
+
+ drm_ht_remove(&master->magiclist);
+
+ if (master->lock.hw_lock) {
+ if (dev->sigdata.lock == master->lock.hw_lock)
+ dev->sigdata.lock = NULL;
+ master->lock.hw_lock = NULL; /* SHM removed */
+ master->lock.file_priv = NULL;
+ wake_up_interruptible(&master->lock.lock_queue);
+ }
+
+ drm_free(master, sizeof(*master), DRM_MEM_DRIVER);
+}
+
+static int drm_fill_in_dev(struct drm_device * dev, struct pci_dev *pdev,
+ const struct pci_device_id *ent,
+ struct drm_driver *driver)
{
int retcode;
+ INIT_LIST_HEAD(&dev->ctxlist);
+ INIT_LIST_HEAD(&dev->vmalist);
+ INIT_LIST_HEAD(&dev->maplist);
+ INIT_LIST_HEAD(&dev->filelist);
+
spin_lock_init(&dev->count_lock);
spin_lock_init(&dev->drw_lock);
spin_lock_init(&dev->tasklet_lock);
+// spin_lock_init(&dev->lock.spinlock);
init_timer(&dev->timer);
mutex_init(&dev->struct_mutex);
mutex_init(&dev->ctxlist_mutex);
- mutex_init(&dev->bm.init_mutex);
+ mutex_init(&dev->bm.evict_mutex);
+
+ idr_init(&dev->drw_idr);
dev->pdev = pdev;
dev->pci_device = pdev->device;
dev->hose = pdev->sysdata;
#endif
dev->irq = pdev->irq;
+ dev->irq_enabled = 0;
- if (drm_ht_create(&dev->map_hash, DRM_MAP_HASH_ORDER)) {
- drm_free(dev->maplist, sizeof(*dev->maplist), DRM_MEM_MAPS);
+ if (drm_ht_create(&dev->map_hash, DRM_MAP_HASH_ORDER))
return -ENOMEM;
- }
- if (drm_mm_init(&dev->offset_manager, DRM_FILE_PAGE_OFFSET_START,
+
+ if (drm_mm_init(&dev->offset_manager, DRM_FILE_PAGE_OFFSET_START,
DRM_FILE_PAGE_OFFSET_SIZE)) {
- drm_free(dev->maplist, sizeof(*dev->maplist), DRM_MEM_MAPS);
drm_ht_remove(&dev->map_hash);
return -ENOMEM;
}
if (drm_ht_create(&dev->object_hash, DRM_OBJECT_HASH_ORDER)) {
- drm_free(dev->maplist, sizeof(*dev->maplist), DRM_MEM_MAPS);
drm_ht_remove(&dev->map_hash);
drm_mm_takedown(&dev->offset_manager);
return -ENOMEM;
}
- dev->maplist = drm_calloc(1, sizeof(*dev->maplist), DRM_MEM_MAPS);
- if (dev->maplist == NULL)
- return -ENOMEM;
- INIT_LIST_HEAD(&dev->maplist->head);
-
/* the DRM has 6 counters */
dev->counters = 6;
dev->types[0] = _DRM_STAT_LOCK;
dev->driver = driver;
- if (dev->driver->load)
- if ((retcode = dev->driver->load(dev, ent->driver_data)))
- goto error_out_unreg;
-
if (drm_core_has_AGP(dev)) {
if (drm_device_is_agp(dev))
dev->agp = drm_agp_init(dev);
* create the proc init entry via proc_init(). This routines assigns
* minor numbers to secondary heads of multi-headed cards
*/
-static int drm_get_head(drm_device_t * dev, drm_head_t * head)
+static int drm_get_minor(struct drm_device *dev, struct drm_minor **minor, int type)
{
- drm_head_t **heads = drm_heads;
+ struct drm_minor *new_minor;
int ret;
- int minor;
+ int minor_id;
DRM_DEBUG("\n");
- for (minor = 0; minor < drm_cards_limit; minor++, heads++) {
- if (!*heads) {
-
- *head = (drm_head_t) {
- .dev = dev,
- .device = MKDEV(DRM_MAJOR, minor),
- .minor = minor,
- };
- if ((ret =
- drm_proc_init(dev, minor, drm_proc_root,
- &head->dev_root))) {
- printk(KERN_ERR
- "DRM: Failed to initialize /proc/dri.\n");
- goto err_g1;
- }
-
- head->dev_class = drm_sysfs_device_add(drm_class, head);
- if (IS_ERR(head->dev_class)) {
- printk(KERN_ERR
- "DRM: Error sysfs_device_add.\n");
- ret = PTR_ERR(head->dev_class);
- goto err_g2;
- }
- *heads = head;
-
- DRM_DEBUG("new minor assigned %d\n", minor);
- return 0;
+ minor_id = drm_minor_get_id(dev, type);
+ if (minor_id < 0)
+ return minor_id;
+
+ new_minor = kzalloc(sizeof(struct drm_minor), GFP_KERNEL);
+ if (!new_minor) {
+ ret = -ENOMEM;
+ goto err_idr;
+ }
+
+ new_minor->type = type;
+ new_minor->device = MKDEV(DRM_MAJOR, minor_id);
+ new_minor->dev = dev;
+ new_minor->index = minor_id;
+ INIT_LIST_HEAD(&new_minor->master_list);
+
+ idr_replace(&drm_minors_idr, new_minor, minor_id);
+
+ if (type == DRM_MINOR_LEGACY) {
+ ret = drm_proc_init(new_minor, minor_id, drm_proc_root);
+ if (ret) {
+ DRM_ERROR("DRM: Failed to initialize /proc/dri.\n");
+ goto err_mem;
}
+ } else
+ new_minor->dev_root = NULL;
+
+ ret = drm_sysfs_device_add(new_minor);
+ if (ret) {
+ printk(KERN_ERR
+ "DRM: Error sysfs_device_add.\n");
+ goto err_g2;
}
- DRM_ERROR("out of minors\n");
- return -ENOMEM;
+ *minor = new_minor;
+
+ DRM_DEBUG("new minor assigned %d\n", minor_id);
+ return 0;
+
+
err_g2:
- drm_proc_cleanup(minor, drm_proc_root, head->dev_root);
-err_g1:
- *head = (drm_head_t) {
- .dev = NULL};
+ if (new_minor->type == DRM_MINOR_LEGACY)
+ drm_proc_cleanup(new_minor, drm_proc_root);
+err_mem:
+ kfree(new_minor);
+err_idr:
+ idr_remove(&drm_minors_idr, minor_id);
+ *minor = NULL;
return ret;
}
* Try and register, if we fail to register, backout previous work.
*/
int drm_get_dev(struct pci_dev *pdev, const struct pci_device_id *ent,
- struct drm_driver *driver)
+ struct drm_driver *driver)
{
- drm_device_t *dev;
+ struct drm_device *dev;
int ret;
DRM_DEBUG("\n");
if (!drm_fb_loaded) {
pci_set_drvdata(pdev, dev);
- pci_request_regions(pdev, driver->pci_driver.name);
+ ret = pci_request_regions(pdev, driver->pci_driver.name);
+ if (ret)
+ goto err_g1;
}
- pci_enable_device(pdev);
+ ret = pci_enable_device(pdev);
+ if (ret)
+ goto err_g2;
pci_set_master(pdev);
if ((ret = drm_fill_in_dev(dev, pdev, ent, driver))) {
printk(KERN_ERR "DRM: fill_in_dev failed\n");
- goto err_g1;
+ goto err_g3;
}
- if ((ret = drm_get_head(dev, &dev->primary)))
- goto err_g1;
- DRM_INFO("Initialized %s %d.%d.%d %s on minor %d: %s\n",
+ /* only add the control node on a modesetting platform */
+ if (drm_core_check_feature(dev, DRIVER_MODESET))
+ if ((ret = drm_get_minor(dev, &dev->control, DRM_MINOR_CONTROL)))
+ goto err_g3;
+
+ if ((ret = drm_get_minor(dev, &dev->primary, DRM_MINOR_LEGACY)))
+ goto err_g4;
+
+ if (dev->driver->load)
+ if ((ret = dev->driver->load(dev, ent->driver_data)))
+ goto err_g5;
+
+ /* setup the grouping for the legacy output */
+ if (drm_core_check_feature(dev, DRIVER_MODESET))
+ if (drm_mode_group_init_legacy_group(dev, &dev->primary->mode_group))
+ goto err_g5;
+
+ DRM_INFO("Initialized %s %d.%d.%d %s on minor %d\n",
driver->name, driver->major, driver->minor, driver->patchlevel,
- driver->date, dev->primary.minor, pci_pretty_name(dev->pdev));
+ driver->date, dev->primary->index);
return 0;
-
+err_g5:
+ drm_put_minor(&dev->primary);
+err_g4:
+ if (drm_core_check_feature(dev, DRIVER_MODESET))
+ drm_put_minor(&dev->control);
+err_g3:
+ if (!drm_fb_loaded)
+ pci_disable_device(pdev);
+err_g2:
+ if (!drm_fb_loaded)
+ pci_release_regions(pdev);
err_g1:
- if (!drm_fb_loaded) {
+ if (!drm_fb_loaded)
pci_set_drvdata(pdev, NULL);
- pci_release_regions(pdev);
- pci_disable_device(pdev);
- }
+
drm_free(dev, sizeof(*dev), DRM_MEM_STUB);
printk(KERN_ERR "DRM: drm_get_dev failed.\n");
return ret;
* "drm" data, otherwise unregisters the "drm" data, frees the dev list and
* unregisters the character device.
*/
-int drm_put_dev(drm_device_t * dev)
+int drm_put_dev(struct drm_device * dev)
{
DRM_DEBUG("release primary %s\n", dev->driver->pci_driver.name);
- if (dev->unique) {
- drm_free(dev->unique, strlen(dev->unique) + 1, DRM_MEM_DRIVER);
- dev->unique = NULL;
- dev->unique_len = 0;
- }
if (dev->devname) {
drm_free(dev->devname, strlen(dev->devname) + 1,
DRM_MEM_DRIVER);
* last minor released.
*
*/
-int drm_put_head(drm_head_t * head)
+int drm_put_minor(struct drm_minor **minor_p)
{
- int minor = head->minor;
-
- DRM_DEBUG("release secondary minor %d\n", minor);
+ struct drm_minor *minor = *minor_p;
+ DRM_DEBUG("release secondary minor %d\n", minor->index);
- drm_proc_cleanup(minor, drm_proc_root, head->dev_root);
- drm_sysfs_device_remove(head->dev_class);
+ if (minor->type == DRM_MINOR_LEGACY)
+ drm_proc_cleanup(minor, drm_proc_root);
+ drm_sysfs_device_remove(minor);
- *head = (drm_head_t){.dev = NULL};
+ idr_remove(&drm_minors_idr, minor->index);
- drm_heads[minor] = NULL;
+ kfree(minor);
+ *minor_p = NULL;
return 0;
}
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