linux-kernel - [PATCH] drm/syncobj : Enable signaling on fence for syncobj

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Date:   Thu, 20 Oct 2022 16:30:03 +0530
From:   Arvind Yadav <Arvind.Yadav@....com>
To:     <Christian.Koenig@....com>, <andrey.grodzovsky@....com>,
        <shashank.sharma@....com>, <amaranath.somalapuram@....com>,
        <Arunpravin.PaneerSelvam@....com>,
        <maarten.lankhorst@...ux.intel.com>, <mripard@...nel.org>,
        <tzimmermann@...e.de>, <airlied@...ux.ie>, <daniel@...ll.ch>,
        <dri-devel@...ts.freedesktop.org>, <linux-kernel@...r.kernel.org>
CC:     Arvind Yadav <Arvind.Yadav@....com>
Subject: [PATCH] drm/syncobj : Enable signaling on fence for syncobj

Here's enabling software signaling on fence for syncobj.

Signed-off-by: Arvind Yadav <Arvind.Yadav@....com>
---
 drivers/gpu/drm/drm_syncobj.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/gpu/drm/drm_syncobj.c b/drivers/gpu/drm/drm_syncobj.c
index 0c2be8360525..2ab7a1a9eeb4 100644
--- a/drivers/gpu/drm/drm_syncobj.c
+++ b/drivers/gpu/drm/drm_syncobj.c
@@ -302,6 +302,8 @@ void drm_syncobj_add_point(struct drm_syncobj *syncobj,
 	dma_fence_chain_init(chain, prev, fence, point);
 	rcu_assign_pointer(syncobj->fence, &chain->base);
 
+	dma_fence_enable_sw_signaling(&chain->base);
+
 	list_for_each_entry_safe(cur, tmp, &syncobj->cb_list, node)
 		syncobj_wait_syncobj_func(syncobj, cur);
 	spin_unlock(&syncobj->lock);
-- 
2.25.1