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From: Mathieu Poirier <mathieu.poirier@linaro.org>
To: ohad@wizery.com, bjorn.andersson@linaro.org,
	guennadi.liakhovetski@linux.intel.com
Cc: loic.pallardy@st.com, linux-remoteproc@vger.kernel.org,
	linux-kernel@vger.kernel.org
Subject: [PATCH 09/10] rpmsg: virtio: Make endianness conversion virtIO specific
Date: Mon, 21 Sep 2020 18:09:59 -0600	[thread overview]
Message-ID: <20200922001000.899956-10-mathieu.poirier@linaro.org> (raw)
In-Reply-To: <20200922001000.899956-1-mathieu.poirier@linaro.org>

Introduce rpmsg operations to make byte conversion specific to the
virtIO transport layer, therefore avoiding the protocol code from
being aware of the virtIO transport specification.

Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org>
---
 drivers/rpmsg/virtio_rpmsg_bus.c | 36 ++++++++++++++++++++++++++++++++
 1 file changed, 36 insertions(+)

diff --git a/drivers/rpmsg/virtio_rpmsg_bus.c b/drivers/rpmsg/virtio_rpmsg_bus.c
index 1c0be0ee790c..15cc383a85cc 100644
--- a/drivers/rpmsg/virtio_rpmsg_bus.c
+++ b/drivers/rpmsg/virtio_rpmsg_bus.c
@@ -157,6 +157,38 @@ static struct rpmsg_endpoint *__rpmsg_create_ept(struct virtproc_info *vrp,
 	return NULL;
 }
 
+static u16 virtio_rpmsg_transport16_to_cpu(struct rpmsg_device *rpdev, u16 val)
+{
+	struct virtio_rpmsg_channel *vch = to_virtio_rpmsg_channel(rpdev);
+	struct virtproc_info *vrp = vch->vrp;
+
+	return virtio16_to_cpu(vrp->vdev, val);
+}
+
+static u16 virtio_rpmsg_cpu_to_transport16(struct rpmsg_device *rpdev, u16 val)
+{
+	struct virtio_rpmsg_channel *vch = to_virtio_rpmsg_channel(rpdev);
+	struct virtproc_info *vrp = vch->vrp;
+
+	return cpu_to_virtio16(vrp->vdev, val);
+}
+
+static u32 virtio_rpmsg_transport32_to_cpu(struct rpmsg_device *rpdev, u32 val)
+{
+	struct virtio_rpmsg_channel *vch = to_virtio_rpmsg_channel(rpdev);
+	struct virtproc_info *vrp = vch->vrp;
+
+	return virtio32_to_cpu(vrp->vdev, val);
+}
+
+static u32 virtio_rpmsg_cpu_to_transport32(struct rpmsg_device *rpdev, u32 val)
+{
+	struct virtio_rpmsg_channel *vch = to_virtio_rpmsg_channel(rpdev);
+	struct virtproc_info *vrp = vch->vrp;
+
+	return cpu_to_virtio32(vrp->vdev, val);
+}
+
 static struct rpmsg_device *
 virtio_rpmsg_create_channel(struct rpmsg_device *rpdev,
 			    struct rpmsg_channel_info *chinfo)
@@ -268,6 +300,10 @@ static int virtio_rpmsg_announce_destroy(struct rpmsg_device *rpdev)
 }
 
 static const struct rpmsg_device_ops virtio_rpmsg_ops = {
+	.transport16_to_cpu = virtio_rpmsg_transport16_to_cpu,
+	.cpu_to_transport16 = virtio_rpmsg_cpu_to_transport16,
+	.transport32_to_cpu = virtio_rpmsg_transport32_to_cpu,
+	.cpu_to_transport32 = virtio_rpmsg_cpu_to_transport32,
 	.create_channel = virtio_rpmsg_create_channel,
 	.release_channel = virtio_rpmsg_release_channel,
 	.create_ept = virtio_rpmsg_create_ept,
-- 
2.25.1


  parent reply	other threads:[~2020-09-22  0:10 UTC|newest]

Thread overview: 42+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-09-22  0:09 [PATCH 00/10] rpmsg: Make RPMSG name service modular Mathieu Poirier
2020-09-22  0:09 ` [PATCH 01/10] rpmsg: virtio: rename rpmsg_create_channel Mathieu Poirier
2020-09-22  7:06   ` Guennadi Liakhovetski
2020-09-22 19:22     ` Mathieu Poirier
2020-09-22  0:09 ` [PATCH 02/10] rpmsg: core: Add channel creation internal API Mathieu Poirier
2020-09-30  6:35   ` Guennadi Liakhovetski
2020-10-01 14:46     ` Arnaud POULIQUEN
2020-09-22  0:09 ` [PATCH 03/10] rpmsg: virtio: Add rpmsg channel device ops Mathieu Poirier
2020-09-22  0:09 ` [PATCH 04/10] rpmsg: Move common structures and defines to headers Mathieu Poirier
2020-09-22 14:26   ` Arnaud POULIQUEN
2020-09-22 19:36     ` Mathieu Poirier
2020-09-30  6:54   ` Guennadi Liakhovetski
2020-09-22  0:09 ` [PATCH 05/10] rpmsg: virtio: Move virtio RPMSG structures to private header Mathieu Poirier
2020-09-22 14:27   ` Arnaud POULIQUEN
2020-09-30  7:03   ` Guennadi Liakhovetski
2020-10-07 17:14     ` Mathieu Poirier
2020-09-22  0:09 ` [PATCH 06/10] rpmsg: Turn name service into a stand alone driver Mathieu Poirier
2020-09-23  1:23   ` kernel test robot
2020-09-23  1:23     ` kernel test robot
2020-09-30  7:09   ` Guennadi Liakhovetski
2020-10-01 16:14     ` Arnaud POULIQUEN
2020-09-22  0:09 ` [PATCH 07/10] rpmsg: virtio: use rpmsg ns device for the ns announcement Mathieu Poirier
2020-09-22  0:09 ` [PATCH 08/10] rpmsg: core: Add RPMSG byte conversion operations Mathieu Poirier
2020-09-22  1:07   ` Randy Dunlap
2020-09-22 14:34   ` Arnaud POULIQUEN
2020-09-22 19:46     ` Mathieu Poirier
2020-09-23 11:56   ` Dan Carpenter
2020-09-23 11:56     ` Dan Carpenter
2020-09-23 11:56     ` Dan Carpenter
2020-09-30  7:11   ` Guennadi Liakhovetski
2020-09-22  0:09 ` Mathieu Poirier [this message]
2020-09-23  1:08   ` [PATCH 09/10] rpmsg: virtio: Make endianness conversion virtIO specific kernel test robot
2020-09-23  1:08     ` kernel test robot
2020-09-22  0:10 ` [PATCH 10/10] rpmsg: ns: Make Name service module transport agnostic Mathieu Poirier
2020-09-23  2:39   ` kernel test robot
2020-09-23  2:39     ` kernel test robot
2020-09-30  7:13   ` Guennadi Liakhovetski
2020-10-07 17:26     ` Mathieu Poirier
2020-09-22  8:09 ` [PATCH 00/10] rpmsg: Make RPMSG name service modular Guennadi Liakhovetski
2020-09-22 19:12   ` Mathieu Poirier
2020-09-24  6:53     ` Guennadi Liakhovetski
2020-09-24 18:18       ` Mathieu Poirier

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