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Date: Mon, 21 Sep 2020 18:09:55 -0600
From: Mathieu Poirier <mathieu.poirier@...aro.org>
To: ohad@...ery.com, bjorn.andersson@...aro.org,
guennadi.liakhovetski@...ux.intel.com
Cc: loic.pallardy@...com, linux-remoteproc@...r.kernel.org,
linux-kernel@...r.kernel.org
Subject: [PATCH 05/10] rpmsg: virtio: Move virtio RPMSG structures to private header
Move structure virtiproc_info and virtio_rpmsg_channel to rpmsg_internal.h
so that they can be used by rpmsg_ns.c
Signed-off-by: Mathieu Poirier <mathieu.poirier@...aro.org>
---
drivers/rpmsg/rpmsg_internal.h | 62 ++++++++++++++++++++++++++++++++
drivers/rpmsg/virtio_rpmsg_bus.c | 57 -----------------------------
2 files changed, 62 insertions(+), 57 deletions(-)
diff --git a/drivers/rpmsg/rpmsg_internal.h b/drivers/rpmsg/rpmsg_internal.h
index 587f723757d4..3ea9cec26fc0 100644
--- a/drivers/rpmsg/rpmsg_internal.h
+++ b/drivers/rpmsg/rpmsg_internal.h
@@ -12,12 +12,74 @@
#ifndef __RPMSG_INTERNAL_H__
#define __RPMSG_INTERNAL_H__
+#include <linux/idr.h>
+#include <linux/mutex.h>
#include <linux/rpmsg.h>
+#include <linux/types.h>
+#include <linux/virtio.h>
+#include <linux/wait.h>
#include <linux/poll.h>
#define to_rpmsg_device(d) container_of(d, struct rpmsg_device, dev)
#define to_rpmsg_driver(d) container_of(d, struct rpmsg_driver, drv)
+/**
+ * struct virtproc_info - virtual remote processor state
+ * @vdev: the virtio device
+ * @rvq: rx virtqueue
+ * @svq: tx virtqueue
+ * @rbufs: kernel address of rx buffers
+ * @sbufs: kernel address of tx buffers
+ * @num_bufs: total number of buffers for rx and tx
+ * @buf_size: size of one rx or tx buffer
+ * @last_sbuf: index of last tx buffer used
+ * @bufs_dma: dma base addr of the buffers
+ * @tx_lock: protects svq, sbufs and sleepers, to allow concurrent senders.
+ * sending a message might require waking up a dozing remote
+ * processor, which involves sleeping, hence the mutex.
+ * @endpoints: idr of local endpoints, allows fast retrieval
+ * @endpoints_lock: lock of the endpoints set
+ * @sendq: wait queue of sending contexts waiting for a tx buffers
+ * @sleepers: number of senders that are waiting for a tx buffer
+ * @ns_ept: the bus's name service endpoint
+ *
+ * This structure stores the rpmsg state of a given virtio remote processor
+ * device (there might be several virtio proc devices for each physical
+ * remote processor).
+ */
+struct virtproc_info {
+ struct virtio_device *vdev;
+ struct virtqueue *rvq, *svq;
+ void *rbufs, *sbufs;
+ unsigned int num_bufs;
+ unsigned int buf_size;
+ int last_sbuf;
+ dma_addr_t bufs_dma;
+ struct mutex tx_lock;
+ struct idr endpoints;
+ struct mutex endpoints_lock;
+ wait_queue_head_t sendq;
+ atomic_t sleepers;
+ struct rpmsg_endpoint *ns_ept;
+};
+
+/**
+ * struct virtio_rpmsg_channel - rpmsg channel descriptor
+ * @rpdev: the rpmsg channel device
+ * @vrp: the virtio remote processor device this channel belongs to
+ *
+ * This structure stores the channel that links the rpmsg device to the virtio
+ * remote processor device.
+ */
+struct virtio_rpmsg_channel {
+ struct rpmsg_device rpdev;
+
+ struct virtproc_info *vrp;
+};
+
+#define to_virtio_rpmsg_channel(_rpdev) \
+ container_of(_rpdev, struct virtio_rpmsg_channel, rpdev)
+
/**
* struct rpmsg_device_ops - indirection table for the rpmsg_device operations
* @create_channel: create backend-specific channel, optional
diff --git a/drivers/rpmsg/virtio_rpmsg_bus.c b/drivers/rpmsg/virtio_rpmsg_bus.c
index eaf3b2c012c8..0635d86d490f 100644
--- a/drivers/rpmsg/virtio_rpmsg_bus.c
+++ b/drivers/rpmsg/virtio_rpmsg_bus.c
@@ -32,63 +32,6 @@
#include "rpmsg_internal.h"
-/**
- * struct virtproc_info - virtual remote processor state
- * @vdev: the virtio device
- * @rvq: rx virtqueue
- * @svq: tx virtqueue
- * @rbufs: kernel address of rx buffers
- * @sbufs: kernel address of tx buffers
- * @num_bufs: total number of buffers for rx and tx
- * @buf_size: size of one rx or tx buffer
- * @last_sbuf: index of last tx buffer used
- * @bufs_dma: dma base addr of the buffers
- * @tx_lock: protects svq, sbufs and sleepers, to allow concurrent senders.
- * sending a message might require waking up a dozing remote
- * processor, which involves sleeping, hence the mutex.
- * @endpoints: idr of local endpoints, allows fast retrieval
- * @endpoints_lock: lock of the endpoints set
- * @sendq: wait queue of sending contexts waiting for a tx buffers
- * @sleepers: number of senders that are waiting for a tx buffer
- * @ns_ept: the bus's name service endpoint
- *
- * This structure stores the rpmsg state of a given virtio remote processor
- * device (there might be several virtio proc devices for each physical
- * remote processor).
- */
-struct virtproc_info {
- struct virtio_device *vdev;
- struct virtqueue *rvq, *svq;
- void *rbufs, *sbufs;
- unsigned int num_bufs;
- unsigned int buf_size;
- int last_sbuf;
- dma_addr_t bufs_dma;
- struct mutex tx_lock;
- struct idr endpoints;
- struct mutex endpoints_lock;
- wait_queue_head_t sendq;
- atomic_t sleepers;
- struct rpmsg_endpoint *ns_ept;
-};
-
-/**
- * struct virtio_rpmsg_channel - rpmsg channel descriptor
- * @rpdev: the rpmsg channel device
- * @vrp: the virtio remote processor device this channel belongs to
- *
- * This structure stores the channel that links the rpmsg device to the virtio
- * remote processor device.
- */
-struct virtio_rpmsg_channel {
- struct rpmsg_device rpdev;
-
- struct virtproc_info *vrp;
-};
-
-#define to_virtio_rpmsg_channel(_rpdev) \
- container_of(_rpdev, struct virtio_rpmsg_channel, rpdev)
-
/*
* Local addresses are dynamically allocated on-demand.
* We do not dynamically assign addresses from the low 1024 range,
--
2.25.1
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