nv-tegra-mirror/linux-nv-oot
1
0
Fork 0
mirror of git://nv-tegra.nvidia.com/linux-nv-oot.git synced 2025-12-24 02:01:36 +03:00
Code Issues Packages Projects Releases Wiki Activity

nvadsp: false trigger for adsp boot

Browse Source 
Change add spinlock protection for message enqueue to avoid possible
race condition between enqueue and dequeue of ADSP OS message.

Bug 2031075

Change-Id: Iad243fdf034db89a61e32411a8b03c817c19d81e
Signed-off-by: Dipesh Gandhi <dipeshg@nvidia.com>
Reviewed-on: https://git-master.nvidia.com/r/1613124
(cherry picked from commit 3d146a3ba4dbe4c1375d64d425ff0b9be7f7c272)
Reviewed-on: https://git-master.nvidia.com/r/1669402
Reviewed-by: Bharat Nihalani <bnihalani@nvidia.com>
Tested-by: Bharat Nihalani <bnihalani@nvidia.com>
Reviewed-by: svc-mobile-coverity <svc-mobile-coverity@nvidia.com>
Reviewed-by: Automatic_Commit_Validation_User
GVS: Gerrit_Virtual_Submit
Tested-by: Ajay Nandakumar M <anandakumarm@nvidia.com>
Reviewed-by: mobile promotions <svcmobile_promotions@nvidia.com>
Tested-by: mobile promotions <svcmobile_promotions@nvidia.com>
This commit is contained in:
Dipesh Gandhi
2018-03-06 13:47:55 +05:30
committed by Laxman Dewangan
parent c8f7a26db7
commit c844c3a973
1 changed files with 3 additions and 1 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
drivers/platform/tegra/nvadsp/mailbox.c
View File

@@ -56,19 +56,21 @@ static void mboxq_destroy(struct nvadsp_mbox_queue *queue)
static status_t mboxq_enqueue(struct nvadsp_mbox_queue *queue,
uint32_t data)
{
unsigned long flags;
int ret = 0;
if (is_mboxq_full(queue)) {
ret = -EINVAL;
goto out;
}
spin_lock_irqsave(&queue->lock, flags);
if (is_mboxq_empty(queue))
complete_all(&queue->comp);
queue->array[queue->tail] = data;
queue->tail = (queue->tail + 1) & NVADSP_MBOX_QUEUE_SIZE_MASK;
queue->count++;
spin_unlock_irqrestore(&queue->lock, flags);
out:
return ret;
}