From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ben Skeggs Subject: Re: [PATCH] drm/gem: add hooks to notify driver when object handle is created/destroyed Date: Thu, 09 Jun 2011 10:26:19 +1000 Message-ID: <1307579181.2359.0.camel@nisroch> References: <1307518438-20547-1-git-send-email-skeggsb@gmail.com> <1307579099-3793-1-git-send-email-skeggsb@gmail.com> Reply-To: bskeggs@redhat.com Mime-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Return-path: Received: from mx1.redhat.com (mx1.redhat.com [209.132.183.28]) by gabe.freedesktop.org (Postfix) with ESMTP id 09AA19E747 for ; Wed, 8 Jun 2011 17:23:46 -0700 (PDT) Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id p590Nkv6025374 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Wed, 8 Jun 2011 20:23:46 -0400 Received: from [10.64.1.118] (dhcp-1-118.bne.redhat.com [10.64.1.118]) by int-mx09.intmail.prod.int.phx2.redhat.com (8.14.4/8.14.4) with ESMTP id p590Niqr027657 for ; Wed, 8 Jun 2011 20:23:45 -0400 In-Reply-To: <1307579099-3793-1-git-send-email-skeggsb@gmail.com> List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org Errors-To: dri-devel-bounces+sf-dri-devel=m.gmane.org@lists.freedesktop.org To: dri-devel@lists.freedesktop.org List-Id: dri-devel@lists.freedesktop.org On Thu, 2011-06-09 at 10:24 +1000, skeggsb@gmail.com wrote: > From: Ben Skeggs > > Nouveau is going to use these hooks to map/unmap objects from a client's > private GPU address space. Forgot the v2 notes.. inlined below.. > > Signed-off-by: Ben Skeggs > --- > drivers/gpu/drm/drm_gem.c | 21 +++++++++++++++++++-- > include/drm/drmP.h | 2 ++ > 2 files changed, 21 insertions(+), 2 deletions(-) > > diff --git a/drivers/gpu/drm/drm_gem.c b/drivers/gpu/drm/drm_gem.c > index 74e4ff5..bad3359 100644 > --- a/drivers/gpu/drm/drm_gem.c > +++ b/drivers/gpu/drm/drm_gem.c > @@ -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); This is the only change, moved the call to the driver hook outside of the spinlock. Ben. > > return 0; > @@ -226,7 +228,8 @@ drm_gem_handle_create(struct drm_file *file_priv, > struct drm_gem_object *obj, > u32 *handlep) > { > - int ret; > + struct drm_device *dev = obj->dev; > + int ret; > > /* > * Get the user-visible handle using idr. > @@ -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); > diff --git a/include/drm/drmP.h b/include/drm/drmP.h > index 738b3a5..4912cb7 100644 > --- a/include/drm/drmP.h > +++ b/include/drm/drmP.h > @@ -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);