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

--
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch

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