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[68.147.8.254]) by smtp.gmail.com with ESMTPSA id c9sm12807953pfn.78.2020.09.21.17.10.11 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 21 Sep 2020 17:10:12 -0700 (PDT) From: Mathieu Poirier 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 Message-Id: <20200922001000.899956-10-mathieu.poirier@linaro.org> X-Mailer: git-send-email 2.25.1 In-Reply-To: <20200922001000.899956-1-mathieu.poirier@linaro.org> References: <20200922001000.899956-1-mathieu.poirier@linaro.org> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.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 --- 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