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platform: nvadsp: dump mailbox queue on error

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Dump mailbox queue, if it's not empty, when mailbox
is getting closed.

Also, change errornos in mailbox APIs such that those
are unique in that function.

Bug 200295526

Change-Id: I69e83146c049bb51d7cac5e954183c6c7cc97956
Signed-off-by: Nitin Kumbhar <nkumbhar@nvidia.com>
Reviewed-on: http://git-master/r/1496890
(cherry picked from commit dec73d1e0ab5c6ccddf043bd4ae7ce65d1d478e2)
Reviewed-on: https://git-master/r/1513587
Reviewed-on: https://git-master.nvidia.com/r/1537331
Reviewed-by: Automatic_Commit_Validation_User
Reviewed-by: svccoveritychecker <svccoveritychecker@nvidia.com>
GVS: Gerrit_Virtual_Submit
This commit is contained in:
Nitin Kumbhar
2017-06-06 16:17:33 +05:30
committed by Laxman Dewangan
parent c196dc0fff
commit 412366151b
1 changed files with 29 additions and 4 deletions
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33
drivers/platform/tegra/nvadsp/mailbox.c
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@@ -1,7 +1,7 @@
/*
* ADSP mailbox manager
*
* Copyright (c) 2014-2016, NVIDIA CORPORATION. All rights reserved.
* Copyright (c) 2014-2017, NVIDIA CORPORATION. All rights reserved.
*
* This program is free software; you can redistribute it and/or modify it
* under the terms and conditions of the GNU General Public License,
@@ -105,6 +105,30 @@ static status_t mboxq_dequeue(struct nvadsp_mbox_queue *queue,
return ret;
}
static void mboxq_dump(struct nvadsp_mbox_queue *queue)
{
unsigned long flags;
uint16_t head, count;
uint32_t data;
spin_lock_irqsave(&queue->lock, flags);
count = queue->count;
pr_info("nvadsp: queue %p count:%d\n", queue, count);
pr_info("nvadsp: queue data: ");
head = queue->head;
while (count) {
data = queue->array[head];
head = (head + 1) & NVADSP_MBOX_QUEUE_SIZE_MASK;
count--;
pr_info("0x%x ", data);
}
pr_info(" dumped\n");
spin_unlock_irqrestore(&queue->lock, flags);
}
static uint16_t nvadsp_mbox_alloc_mboxid(void)
{
unsigned long start = NVADSP_MAILBOX_START;
@@ -157,13 +181,13 @@ status_t nvadsp_mbox_open(struct nvadsp_mbox *mbox, uint16_t *mid,
if (*mid >= NVADSP_MAILBOX_MAX) {
pr_debug("%s: Invalid mailbox %d.\n",
__func__, *mid);
ret = -EINVAL;
ret = -ERANGE;
goto out;
}
if (nvadsp_drv_data->mboxes[*mid]) {
pr_debug("%s: mailbox %d already opened.\n",
__func__, *mid);
ret = -EINVAL;
ret = -EADDRINUSE;
goto out;
}
mbox->id = *mid;
@@ -288,7 +312,8 @@ status_t nvadsp_mbox_close(struct nvadsp_mbox *mbox)
}
if (!is_mboxq_empty(&mbox->recv_queue)) {
ret = -EINVAL;
ret = -ENOTEMPTY;
mboxq_dump(&mbox->recv_queue);
goto out;
}