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rpmsg updates for v5.13

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In addition to some bug fixes and cleanups this adds support for
 exposing the virtio based transport to user space using the rpmsg_char
 driver.
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Merge tag 'rpmsg-v5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc

Pull rpmsg updates from Bjorn Andersson:
 "In addition to some bug fixes and cleanups this adds support for
  exposing the virtio based transport to user space using the rpmsg_char
  driver"

* tag 'rpmsg-v5.13' of git://git.kernel.org/pub/scm/linux/kernel/git/andersson/remoteproc:
  rpmsg: qcom_glink_native: fix error return code of qcom_glink_rx_data()
  rpmsg: char: Return an error if device already open
  rpmsg: virtio: Register the rpmsg_char device
  rpmsg: char: Use rpmsg_sendto to specify the message destination address
  rpmsg: Add short description of the IOCTL defined in UAPI.
  rpmsg: Move RPMSG_ADDR_ANY in user API
  rpmsg: char: Rename rpmsg_char_init to rpmsg_chrdev_init
This commit is contained in:
Linus Torvalds 2021-05-04 11:08:51 -07:00
commit a01d9524ca
6 changed files with 109 additions and 13 deletions
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13
include/uapi/linux/rpmsg.h
View file

@ -9,11 +9,13 @@
#include <linux/ioctl.h>
#include <linux/types.h>
#define RPMSG_ADDR_ANY 0xFFFFFFFF
/**
* struct rpmsg_endpoint_info - endpoint info representation
* @name: name of service
* @src: local address
* @dst: destination address
* @src: local address. To set to RPMSG_ADDR_ANY if not used.
* @dst: destination address. To set to RPMSG_ADDR_ANY if not used.
*/
struct rpmsg_endpoint_info {
char name[32];
@ -21,7 +23,14 @@ struct rpmsg_endpoint_info {
__u32 dst;
};
/**
* Instantiate a new rmpsg char device endpoint.
*/
#define RPMSG_CREATE_EPT_IOCTL _IOW(0xb5, 0x1, struct rpmsg_endpoint_info)
/**
* Destroy a rpmsg char device endpoint created by the RPMSG_CREATE_EPT_IOCTL.
*/
#define RPMSG_DESTROY_EPT_IOCTL _IO(0xb5, 0x2)
#endif