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accel/amdxdna: Clear mailbox interrupt register during channel creation 

The mailbox interrupt register is not always cleared when a mailbox channel
is created. This can leave stale interrupt states from previous operations.

Fix this by explicitly clearing the interrupt register in the mailbox
channel creation function.

Fixes: b87f920b93 ("accel/amdxdna: Support hardware mailbox")
Reviewed-by: Maciej Falkowski <maciej.falkowski@linux.intel.com>
Signed-off-by: Lizhi Hou <lizhi.hou@amd.com>
Link: https://patch.msgid.link/20251107181115.1293158-1-lizhi.hou@amd.com
This commit is contained in:
Lizhi Hou 2025-11-07 10:11:15 -08:00
parent 0709abaf67
commit 6ff9385c07
1 changed files with 1 additions and 0 deletions
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1
drivers/accel/amdxdna/amdxdna_mailbox.c
View File

@ -516,6 +516,7 @@ xdna_mailbox_create_channel(struct mailbox *mb,
}
mb_chann->bad_state = false;
mailbox_reg_write(mb_chann, mb_chann->iohub_int_addr, 0);
MB_DBG(mb_chann, "Mailbox channel created (irq: %d)", mb_chann->msix_irq);
return mb_chann;