diff mbox

[2/3] drm/etnaviv: Expose our reservation object when exporting a dmabuf.

Message ID 20170411014414.20280-2-eric@anholt.net (mailing list archive)
State New, archived
Headers show

Commit Message

Eric Anholt April 11, 2017, 1:44 a.m. UTC
Without this, polling on the dma-buf (and presumably other devices
synchronizing against our rendering) would return immediately, even
while the BO was busy.

Signed-off-by: Eric Anholt <eric@anholt.net>
Cc: stable@vger.kernel.org
Cc: Lucas Stach <l.stach@pengutronix.de>
Cc: Russell King <linux+etnaviv@armlinux.org.uk>
Cc: Christian Gmeiner <christian.gmeiner@gmail.com>
Cc: etnaviv@lists.freedesktop.org
---

Note: compile-tested only.

 drivers/gpu/drm/etnaviv/etnaviv_drv.c       | 1 +
 drivers/gpu/drm/etnaviv/etnaviv_drv.h       | 1 +
 drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c | 7 +++++++
 3 files changed, 9 insertions(+)

Comments

Daniel Vetter April 12, 2017, 12:47 p.m. UTC | #1
On Mon, Apr 10, 2017 at 06:44:13PM -0700, Eric Anholt wrote:
> Without this, polling on the dma-buf (and presumably other devices
> synchronizing against our rendering) would return immediately, even
> while the BO was busy.
> 
> Signed-off-by: Eric Anholt <eric@anholt.net>
> Cc: stable@vger.kernel.org
> Cc: Lucas Stach <l.stach@pengutronix.de>
> Cc: Russell King <linux+etnaviv@armlinux.org.uk>
> Cc: Christian Gmeiner <christian.gmeiner@gmail.com>
> Cc: etnaviv@lists.freedesktop.org

On the first 2 patches:

Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>

If you get an ack from Rob/Lucas I guess we could push these also through
drm-misc.
-Daniel

> ---
> 
> Note: compile-tested only.
> 
>  drivers/gpu/drm/etnaviv/etnaviv_drv.c       | 1 +
>  drivers/gpu/drm/etnaviv/etnaviv_drv.h       | 1 +
>  drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c | 7 +++++++
>  3 files changed, 9 insertions(+)
> 
> diff --git a/drivers/gpu/drm/etnaviv/etnaviv_drv.c b/drivers/gpu/drm/etnaviv/etnaviv_drv.c
> index 587e45043542..ff6db8f0d966 100644
> --- a/drivers/gpu/drm/etnaviv/etnaviv_drv.c
> +++ b/drivers/gpu/drm/etnaviv/etnaviv_drv.c
> @@ -495,6 +495,7 @@ static struct drm_driver etnaviv_drm_driver = {
>  	.prime_fd_to_handle = drm_gem_prime_fd_to_handle,
>  	.gem_prime_export   = drm_gem_prime_export,
>  	.gem_prime_import   = drm_gem_prime_import,
> +	.gem_prime_res_obj  = etnaviv_gem_prime_res_obj,
>  	.gem_prime_pin      = etnaviv_gem_prime_pin,
>  	.gem_prime_unpin    = etnaviv_gem_prime_unpin,
>  	.gem_prime_get_sg_table = etnaviv_gem_prime_get_sg_table,
> diff --git a/drivers/gpu/drm/etnaviv/etnaviv_drv.h b/drivers/gpu/drm/etnaviv/etnaviv_drv.h
> index e41f38667c1c..058389f93b69 100644
> --- a/drivers/gpu/drm/etnaviv/etnaviv_drv.h
> +++ b/drivers/gpu/drm/etnaviv/etnaviv_drv.h
> @@ -80,6 +80,7 @@ void *etnaviv_gem_prime_vmap(struct drm_gem_object *obj);
>  void etnaviv_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr);
>  int etnaviv_gem_prime_mmap(struct drm_gem_object *obj,
>  			   struct vm_area_struct *vma);
> +struct reservation_object *etnaviv_gem_prime_res_obj(struct drm_gem_object *obj);
>  struct drm_gem_object *etnaviv_gem_prime_import_sg_table(struct drm_device *dev,
>  	struct dma_buf_attachment *attach, struct sg_table *sg);
>  int etnaviv_gem_prime_pin(struct drm_gem_object *obj);
> diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c b/drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c
> index 62b47972a52e..abed6f781281 100644
> --- a/drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c
> +++ b/drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c
> @@ -150,3 +150,10 @@ struct drm_gem_object *etnaviv_gem_prime_import_sg_table(struct drm_device *dev,
>  
>  	return ERR_PTR(ret);
>  }
> +
> +struct reservation_object *etnaviv_gem_prime_res_obj(struct drm_gem_object *obj)
> +{
> +	struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
> +
> +	return etnaviv_obj->resv;
> +}
> -- 
> 2.11.0
> 
> _______________________________________________
> dri-devel mailing list
> dri-devel@lists.freedesktop.org
> https://lists.freedesktop.org/mailman/listinfo/dri-devel
Lucas Stach April 12, 2017, 12:54 p.m. UTC | #2
Am Mittwoch, den 12.04.2017, 14:47 +0200 schrieb Daniel Vetter:
> On Mon, Apr 10, 2017 at 06:44:13PM -0700, Eric Anholt wrote:
> > Without this, polling on the dma-buf (and presumably other devices
> > synchronizing against our rendering) would return immediately, even
> > while the BO was busy.
> > 
> > Signed-off-by: Eric Anholt <eric@anholt.net>
> > Cc: stable@vger.kernel.org
> > Cc: Lucas Stach <l.stach@pengutronix.de>
> > Cc: Russell King <linux+etnaviv@armlinux.org.uk>
> > Cc: Christian Gmeiner <christian.gmeiner@gmail.com>
> > Cc: etnaviv@lists.freedesktop.org
> 
> On the first 2 patches:
> 
> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
> 
> If you get an ack from Rob/Lucas I guess we could push these also through
> drm-misc.

Patch itself looks fine. I prefer to route the etnaviv change through my
tree, to give it the usual exposure to our testing.

Regards,
Lucas

> 
> > ---
> > 
> > Note: compile-tested only.
> > 
> >  drivers/gpu/drm/etnaviv/etnaviv_drv.c       | 1 +
> >  drivers/gpu/drm/etnaviv/etnaviv_drv.h       | 1 +
> >  drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c | 7 +++++++
> >  3 files changed, 9 insertions(+)
> > 
> > diff --git a/drivers/gpu/drm/etnaviv/etnaviv_drv.c b/drivers/gpu/drm/etnaviv/etnaviv_drv.c
> > index 587e45043542..ff6db8f0d966 100644
> > --- a/drivers/gpu/drm/etnaviv/etnaviv_drv.c
> > +++ b/drivers/gpu/drm/etnaviv/etnaviv_drv.c
> > @@ -495,6 +495,7 @@ static struct drm_driver etnaviv_drm_driver = {
> >  	.prime_fd_to_handle = drm_gem_prime_fd_to_handle,
> >  	.gem_prime_export   = drm_gem_prime_export,
> >  	.gem_prime_import   = drm_gem_prime_import,
> > +	.gem_prime_res_obj  = etnaviv_gem_prime_res_obj,
> >  	.gem_prime_pin      = etnaviv_gem_prime_pin,
> >  	.gem_prime_unpin    = etnaviv_gem_prime_unpin,
> >  	.gem_prime_get_sg_table = etnaviv_gem_prime_get_sg_table,
> > diff --git a/drivers/gpu/drm/etnaviv/etnaviv_drv.h b/drivers/gpu/drm/etnaviv/etnaviv_drv.h
> > index e41f38667c1c..058389f93b69 100644
> > --- a/drivers/gpu/drm/etnaviv/etnaviv_drv.h
> > +++ b/drivers/gpu/drm/etnaviv/etnaviv_drv.h
> > @@ -80,6 +80,7 @@ void *etnaviv_gem_prime_vmap(struct drm_gem_object *obj);
> >  void etnaviv_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr);
> >  int etnaviv_gem_prime_mmap(struct drm_gem_object *obj,
> >  			   struct vm_area_struct *vma);
> > +struct reservation_object *etnaviv_gem_prime_res_obj(struct drm_gem_object *obj);
> >  struct drm_gem_object *etnaviv_gem_prime_import_sg_table(struct drm_device *dev,
> >  	struct dma_buf_attachment *attach, struct sg_table *sg);
> >  int etnaviv_gem_prime_pin(struct drm_gem_object *obj);
> > diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c b/drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c
> > index 62b47972a52e..abed6f781281 100644
> > --- a/drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c
> > +++ b/drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c
> > @@ -150,3 +150,10 @@ struct drm_gem_object *etnaviv_gem_prime_import_sg_table(struct drm_device *dev,
> >  
> >  	return ERR_PTR(ret);
> >  }
> > +
> > +struct reservation_object *etnaviv_gem_prime_res_obj(struct drm_gem_object *obj)
> > +{
> > +	struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
> > +
> > +	return etnaviv_obj->resv;
> > +}
> > -- 
> > 2.11.0
> > 
> > _______________________________________________
> > dri-devel mailing list
> > dri-devel@lists.freedesktop.org
> > https://lists.freedesktop.org/mailman/listinfo/dri-devel
>
Eric Anholt April 12, 2017, 5:32 p.m. UTC | #3
Lucas Stach <l.stach@pengutronix.de> writes:

> Am Mittwoch, den 12.04.2017, 14:47 +0200 schrieb Daniel Vetter:
>> On Mon, Apr 10, 2017 at 06:44:13PM -0700, Eric Anholt wrote:
>> > Without this, polling on the dma-buf (and presumably other devices
>> > synchronizing against our rendering) would return immediately, even
>> > while the BO was busy.
>> > 
>> > Signed-off-by: Eric Anholt <eric@anholt.net>
>> > Cc: stable@vger.kernel.org
>> > Cc: Lucas Stach <l.stach@pengutronix.de>
>> > Cc: Russell King <linux+etnaviv@armlinux.org.uk>
>> > Cc: Christian Gmeiner <christian.gmeiner@gmail.com>
>> > Cc: etnaviv@lists.freedesktop.org
>> 
>> On the first 2 patches:
>> 
>> Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
>> 
>> If you get an ack from Rob/Lucas I guess we could push these also through
>> drm-misc.
>
> Patch itself looks fine. I prefer to route the etnaviv change through my
> tree, to give it the usual exposure to our testing.

Yeah, I'd rather you grab it so you can test it before it lands.
diff mbox

Patch

diff --git a/drivers/gpu/drm/etnaviv/etnaviv_drv.c b/drivers/gpu/drm/etnaviv/etnaviv_drv.c
index 587e45043542..ff6db8f0d966 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_drv.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_drv.c
@@ -495,6 +495,7 @@  static struct drm_driver etnaviv_drm_driver = {
 	.prime_fd_to_handle = drm_gem_prime_fd_to_handle,
 	.gem_prime_export   = drm_gem_prime_export,
 	.gem_prime_import   = drm_gem_prime_import,
+	.gem_prime_res_obj  = etnaviv_gem_prime_res_obj,
 	.gem_prime_pin      = etnaviv_gem_prime_pin,
 	.gem_prime_unpin    = etnaviv_gem_prime_unpin,
 	.gem_prime_get_sg_table = etnaviv_gem_prime_get_sg_table,
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_drv.h b/drivers/gpu/drm/etnaviv/etnaviv_drv.h
index e41f38667c1c..058389f93b69 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_drv.h
+++ b/drivers/gpu/drm/etnaviv/etnaviv_drv.h
@@ -80,6 +80,7 @@  void *etnaviv_gem_prime_vmap(struct drm_gem_object *obj);
 void etnaviv_gem_prime_vunmap(struct drm_gem_object *obj, void *vaddr);
 int etnaviv_gem_prime_mmap(struct drm_gem_object *obj,
 			   struct vm_area_struct *vma);
+struct reservation_object *etnaviv_gem_prime_res_obj(struct drm_gem_object *obj);
 struct drm_gem_object *etnaviv_gem_prime_import_sg_table(struct drm_device *dev,
 	struct dma_buf_attachment *attach, struct sg_table *sg);
 int etnaviv_gem_prime_pin(struct drm_gem_object *obj);
diff --git a/drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c b/drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c
index 62b47972a52e..abed6f781281 100644
--- a/drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c
+++ b/drivers/gpu/drm/etnaviv/etnaviv_gem_prime.c
@@ -150,3 +150,10 @@  struct drm_gem_object *etnaviv_gem_prime_import_sg_table(struct drm_device *dev,
 
 	return ERR_PTR(ret);
 }
+
+struct reservation_object *etnaviv_gem_prime_res_obj(struct drm_gem_object *obj)
+{
+	struct etnaviv_gem_object *etnaviv_obj = to_etnaviv_bo(obj);
+
+	return etnaviv_obj->resv;
+}