linux-kernel - [PATCH] remoteproc: virtio: support sharing vdev buffer

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Message-Id: <20200722131543.7024-1-peng.fan@nxp.com>
Date:   Wed, 22 Jul 2020 21:15:43 +0800
From:   Peng Fan <peng.fan@....com>
To:     bjorn.andersson@...aro.org, mathieu.poirier@...aro.org,
        ohad@...ery.com
Cc:     linux-remoteproc@...r.kernel.org, linux-kernel@...r.kernel.org,
        peng.fan@....com
Subject: [PATCH] remoteproc: virtio: support sharing vdev buffer

Support sharing vdev buffer between multiple vdevs by using name
"vdevbuffer".

Reviewed-by: Richard Zhu <hongxing.zhu@....com>
Signed-off-by: Peng Fan <peng.fan@....com>
---
 drivers/remoteproc/remoteproc_virtio.c | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/drivers/remoteproc/remoteproc_virtio.c b/drivers/remoteproc/remoteproc_virtio.c
index dfd3808c34fd..5d78ebea111e 100644
--- a/drivers/remoteproc/remoteproc_virtio.c
+++ b/drivers/remoteproc/remoteproc_virtio.c
@@ -343,6 +343,8 @@ int rproc_add_virtio_dev(struct rproc_vdev *rvdev, int id)
 
 	/* Try to find dedicated vdev buffer carveout */
 	mem = rproc_find_carveout_by_name(rproc, "vdev%dbuffer", rvdev->index);
+	if (!mem)
+		mem = rproc_find_carveout_by_name(rproc, "vdevbuffer");
 	if (mem) {
 		phys_addr_t pa;
 
-- 
2.16.4