lkml.org 
[lkml]   [2017]   [Apr]   [11]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
/
Date
From
SubjectRe: [PATCH 3/3] drm/vc4: Add support for dma-buf fencing.
On Mon, Apr 10, 2017 at 06:44:14PM -0700, Eric Anholt wrote:
> This is needed for proper synchronization with display on another DRM
> device (pl111 or tinydrm) with buffers produced by vc4 V3D. Fixes the
> new igt vc4_dmabuf_poll testcase, and rendering of one of the glmark2
> desktop tests on pl111+vc4.
>
> This doesn't yet introduce waits on other device's fences before vc4's
> rendering/display, because I don't have testcases for them.
>
> Signed-off-by: Eric Anholt <eric@anholt.net>
> Cc: Gustavo Padovan <gustavo.padovan@collabora.com>
> ---
> +static void vc4_fence_release(struct dma_fence *fence)
> +{
> + struct vc4_fence *f = to_vc4_fence(fence);
> +
> + kfree_rcu(f, base.rcu);
> +}

Unless you have a plan to do more here, looks like you can just use
the default dma_fence_free as the release callback.
-Chris

--
Chris Wilson, Intel Open Source Technology Centre

\
 
 \ /
  Last update: 2017-04-11 11:36    [W:0.384 / U:0.020 seconds]
©2003-2020 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site