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rpmsg: glink_cma: Add msg type to reclaim inbuf

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There are cases where the device receives an inbuf msg type related to
an ack and hold on to the buffer without it being reclaimed by the
driver. Add a new msg type, MSG_INBUF_RECLAIM, so the driver can reclaim
inbuf that the device no longer needs.

Change-Id: Id92371f06134569031ee3ea4454104f83f790561
Signed-off-by: Tony Truong <quic_truong@quicinc.com>
This commit is contained in:
Tony Truong 2024-08-08 16:24:32 -07:00
parent f2ee42036a
commit f49cd77f73
1 changed files with 5 additions and 0 deletions
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5
drivers/rpmsg/virtio_glink_cma.c
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@ -51,6 +51,7 @@ enum {
MSG_SSR_AFTER_POWERUP, /* outbound */
MSG_SSR_SETUP, /* inbound */
MSG_SSR_SETUP_ACK, /* outbound */
MSG_INBUF_RECLAIM, /* inbound */
MSG_MAX,
MSG_ERR = 0xff,
};
@ -121,6 +122,7 @@ static int virtio_glink_bridge_msg_type_supported(u32 msg_type)
switch (msg_type) {
case MSG_SETUP:
case MSG_SSR_SETUP:
case MSG_INBUF_RECLAIM:
return true;
default:
return false;
@ -264,6 +266,9 @@ static void virtio_glink_bridge_rx_work(struct work_struct *work)
goto out;
}
if (msg_type == MSG_INBUF_RECLAIM)
return;
msg_ack_type = virtio_glink_bridge_to_msg_ack_type(msg_type);
dsp_info = virtio_glink_bridge_get_dsp_info(vgbridge, label);