linux-kernel - [PATCH 2/2] mailbox: mtk-cmdq: Add set GCE thread timeout interface

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Date: Wed, 10 Jan 2024 23:51:48 +0800
From: Jason-JH.Lin <jason-jh.lin@...iatek.com>
To: Jassi Brar <jassisinghbrar@...il.com>, Matthias Brugger
	<matthias.bgg@...il.com>, AngeloGioacchino Del Regno
	<angelogioacchino.delregno@...labora.com>, Chun-Kuang Hu
	<chunkuang.hu@...nel.org>
CC: <linux-kernel@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>,
	<linux-mediatek@...ts.infradead.org>, Jason-ch Chen
	<jason-ch.chen@...iatek.com>, Johnson Wang <johnson.wang@...iatek.com>,
	"Jason-JH . Lin" <jason-jh.lin@...iatek.com>, Singo Chang
	<singo.chang@...iatek.com>, Nancy Lin <nancy.lin@...iatek.com>, Shawn Sung
	<shawn.sung@...iatek.com>,
	<Project_Global_Chrome_Upstream_Group@...iatek.com>
Subject: [PATCH 2/2] mailbox: mtk-cmdq: Add set GCE thread timeout interface

Add cmdq_mbox_set_thread_timeout() to configue interrupt timeout
for the GCE thread used by CMDQ client drivers.

Signed-off-by: Jason-JH.Lin <jason-jh.lin@...iatek.com>
---
 drivers/mailbox/mtk-cmdq-mailbox.c       | 11 +++++++++++
 include/linux/mailbox/mtk-cmdq-mailbox.h |  1 +
 2 files changed, 12 insertions(+)

diff --git a/drivers/mailbox/mtk-cmdq-mailbox.c b/drivers/mailbox/mtk-cmdq-mailbox.c
index 89567f837513..9c0b5a43bf9f 100644
--- a/drivers/mailbox/mtk-cmdq-mailbox.c
+++ b/drivers/mailbox/mtk-cmdq-mailbox.c
@@ -122,6 +122,17 @@ u8 cmdq_get_shift_pa(struct mbox_chan *chan)
 }
 EXPORT_SYMBOL(cmdq_get_shift_pa);
 
+void cmdq_mbox_set_thread_timeout(void *chan, u32 timeout)
+{
+	struct cmdq_thread *thread = ((struct mbox_chan *)chan)->con_priv;
+	unsigned long flags;
+
+	spin_lock_irqsave(&thread->chan->lock, flags);
+	thread->timeout_ms = timeout;
+	spin_unlock_irqrestore(&thread->chan->lock, flags);
+}
+EXPORT_SYMBOL(cmdq_mbox_set_thread_timeout);
+
 static int cmdq_thread_suspend(struct cmdq *cmdq, struct cmdq_thread *thread)
 {
 	u32 status;
diff --git a/include/linux/mailbox/mtk-cmdq-mailbox.h b/include/linux/mailbox/mtk-cmdq-mailbox.h
index 4973b2ec37db..59c9f8ebd01f 100644
--- a/include/linux/mailbox/mtk-cmdq-mailbox.h
+++ b/include/linux/mailbox/mtk-cmdq-mailbox.h
@@ -82,5 +82,6 @@ struct cmdq_pkt {
 };
 
 u8 cmdq_get_shift_pa(struct mbox_chan *chan);
+void cmdq_mbox_set_thread_timeout(void *chan, u32 timeout);
 
 #endif /* __MTK_CMDQ_MAILBOX_H__ */
-- 
2.18.0