linux-kernel - [PATCH v1, 4/5] soc: mediatek: cmdq: add address shift in jump

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Date:   Sat, 5 Dec 2020 12:15:27 +0800
From:   Yongqiang Niu <yongqiang.niu@...iatek.com>
To:     Rob Herring <robh+dt@...nel.org>,
        Matthias Brugger <matthias.bgg@...il.com>,
        CK Hu <ck.hu@...iatek.com>
CC:     Jassi Brar <jassisinghbrar@...il.com>,
        Bibby Hsieh <bibby.hsieh@...iatek.com>,
        Yongqiang Niu <yongqiang.niu@...iatek.com>,
        Dennis YC Hsieh <dennis-yc.hsieh@...iatek.com>,
        <linux-arm-kernel@...ts.infradead.org>,
        <linux-mediatek@...ts.infradead.org>,
        <linux-kernel@...r.kernel.org>
Subject: [PATCH v1, 4/5] soc: mediatek: cmdq: add address shift in jump

Add address shift when compose jump instruction
to compatible with 35bit format.

Signed-off-by: Yongqiang Niu <yongqiang.niu@...iatek.com>
---
 drivers/mailbox/mtk-cmdq-mailbox.c | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/drivers/mailbox/mtk-cmdq-mailbox.c b/drivers/mailbox/mtk-cmdq-mailbox.c
index 1c01fe0..5ed39f8 100644
--- a/drivers/mailbox/mtk-cmdq-mailbox.c
+++ b/drivers/mailbox/mtk-cmdq-mailbox.c
@@ -174,7 +174,8 @@ static void cmdq_task_insert_into_thread(struct cmdq_task *task)
 	dma_sync_single_for_cpu(dev, prev_task->pa_base,
 				prev_task->pkt->cmd_buf_size, DMA_TO_DEVICE);
 	prev_task_base[CMDQ_NUM_CMD(prev_task->pkt) - 1] =
-		(u64)CMDQ_JUMP_BY_PA << 32 | task->pa_base;
+		(u64)CMDQ_JUMP_BY_PA << 32 |
+		(task->pa_base >> task->cmdq->shift_pa);
 	dma_sync_single_for_device(dev, prev_task->pa_base,
 				   prev_task->pkt->cmd_buf_size, DMA_TO_DEVICE);
 
-- 
1.8.1.1.dirty