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drm/gem: add hooks to notify driver when object handle is created/destroyed 

Nouveau is going to use these hooks to map/unmap objects from a client's
private GPU address space.

Signed-off-by: Ben Skeggs <bskeggs@redhat.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>
This commit is contained in:
Ben Skeggs 2011-06-09 00:24:59 +00:00 committed by Dave Airlie
parent a377e187df
commit 304eda3292
2 changed files with 21 additions and 2 deletions
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19
drivers/gpu/drm/drm_gem.c
View File

@ -210,6 +210,8 @@ drm_gem_handle_delete(struct drm_file *filp, u32 handle)
idr_remove(&filp->object_idr, handle);
spin_unlock(&filp->table_lock);
if (dev->driver->gem_close_object)
dev->driver->gem_close_object(obj, filp);
drm_gem_object_handle_unreference_unlocked(obj);
return 0;
@ -226,6 +228,7 @@ drm_gem_handle_create(struct drm_file *file_priv,
struct drm_gem_object *obj,
u32 *handlep)
{
struct drm_device *dev = obj->dev;
int ret;
/*
@ -247,6 +250,15 @@ again:
return ret;
drm_gem_object_handle_reference(obj);
if (dev->driver->gem_open_object) {
ret = dev->driver->gem_open_object(obj, file_priv);
if (ret) {
drm_gem_handle_delete(file_priv, *handlep);
return ret;
}
}
return 0;
}
EXPORT_SYMBOL(drm_gem_handle_create);
@ -401,7 +413,12 @@ drm_gem_open(struct drm_device *dev, struct drm_file *file_private)
static int
drm_gem_object_release_handle(int id, void *ptr, void *data)
{
struct drm_file *file_priv = data;
struct drm_gem_object *obj = ptr;
struct drm_device *dev = obj->dev;
if (dev->driver->gem_close_object)
dev->driver->gem_close_object(obj, file_priv);
drm_gem_object_handle_unreference_unlocked(obj);
@ -417,7 +434,7 @@ void
drm_gem_release(struct drm_device *dev, struct drm_file *file_private)
{
idr_for_each(&file_private->object_idr,
&drm_gem_object_release_handle, NULL);
&drm_gem_object_release_handle, file_private);
idr_remove_all(&file_private->object_idr);
idr_destroy(&file_private->object_idr);

2
include/drm/drmP.h
View File

@ -886,6 +886,8 @@ struct drm_driver {
*/
int (*gem_init_object) (struct drm_gem_object *obj);
void (*gem_free_object) (struct drm_gem_object *obj);
int (*gem_open_object) (struct drm_gem_object *, struct drm_file *);
void (*gem_close_object) (struct drm_gem_object *, struct drm_file *);
/* vga arb irq handler */
void (*vgaarb_irq)(struct drm_device *dev, bool state);