linux-kernel - [PATCH v2 02/12] soc: mediatek: cmdq: Add parameter shift_pa to cmdq_pkt

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Message-Id: <20240222154120.16959-3-chunkuang.hu@kernel.org>
Date: Thu, 22 Feb 2024 15:41:10 +0000
From: Chun-Kuang Hu <chunkuang.hu@...nel.org>
To: Matthias Brugger <matthias.bgg@...il.com>,
	AngeloGioacchino Del Regno <angelogioacchino.delregno@...labora.com>,
	Mauro Carvalho Chehab <mchehab@...nel.org>,
	Moudy Ho <moudy.ho@...iatek.com>,
	"Jason-JH . Lin" <jason-jh.lin@...iatek.com>,
	linux-arm-kernel@...ts.infradead.org,
	linux-mediatek@...ts.infradead.org,
	dri-devel@...ts.freedesktop.org,
	linux-kernel@...r.kernel.org,
	linux-media@...r.kernel.org
Cc: Chun-Kuang Hu <chunkuang.hu@...nel.org>
Subject: [PATCH v2 02/12] soc: mediatek: cmdq: Add parameter shift_pa to cmdq_pkt_jump()

In original design, cmdq_pkt_jump() call cmdq_get_shift_pa() every
time to get shift_pa. But the shift_pa is constant value for each
SoC, so client driver just need to call cmdq_get_shift_pa() once
and pass shift_pa to cmdq_pkt_jump() to prevent frequent function
call.

Signed-off-by: Chun-Kuang Hu <chunkuang.hu@...nel.org>
---
 drivers/soc/mediatek/mtk-cmdq-helper.c | 5 ++---
 include/linux/soc/mediatek/mtk-cmdq.h  | 6 ++++--
 2 files changed, 6 insertions(+), 5 deletions(-)

diff --git a/drivers/soc/mediatek/mtk-cmdq-helper.c b/drivers/soc/mediatek/mtk-cmdq-helper.c
index 0b2e5690dacf..3380e56dd69b 100644
--- a/drivers/soc/mediatek/mtk-cmdq-helper.c
+++ b/drivers/soc/mediatek/mtk-cmdq-helper.c
@@ -393,14 +393,13 @@ int cmdq_pkt_assign(struct cmdq_pkt *pkt, u16 reg_idx, u32 value)
 }
 EXPORT_SYMBOL(cmdq_pkt_assign);
 
-int cmdq_pkt_jump(struct cmdq_pkt *pkt, dma_addr_t addr)
+int cmdq_pkt_jump(struct cmdq_pkt *pkt, dma_addr_t addr, u8 shift_pa)
 {
 	struct cmdq_instruction inst = {};
 
 	inst.op = CMDQ_CODE_JUMP;
 	inst.offset = CMDQ_JUMP_ABSOLUTE;
-	inst.value = addr >>
-		cmdq_get_shift_pa(((struct cmdq_client *)pkt->cl)->chan);
+	inst.value = addr >> shift_pa;
 	return cmdq_pkt_append_command(pkt, inst);
 }
 EXPORT_SYMBOL(cmdq_pkt_jump);
diff --git a/include/linux/soc/mediatek/mtk-cmdq.h b/include/linux/soc/mediatek/mtk-cmdq.h
index 649955d2cf5c..72adfd867cd9 100644
--- a/include/linux/soc/mediatek/mtk-cmdq.h
+++ b/include/linux/soc/mediatek/mtk-cmdq.h
@@ -253,10 +253,12 @@ int cmdq_pkt_assign(struct cmdq_pkt *pkt, u16 reg_idx, u32 value);
  *		     a physical address which should contains more instruction.
  * @pkt:        the CMDQ packet
  * @addr:       physical address of target instruction buffer
+ * @shift_pa:	shift bits of physical address in CMDQ instruction. This value
+ *		is got by cmdq_get_shift_pa().
  *
  * Return: 0 for success; else the error code is returned
  */
-int cmdq_pkt_jump(struct cmdq_pkt *pkt, dma_addr_t addr);
+int cmdq_pkt_jump(struct cmdq_pkt *pkt, dma_addr_t addr, u8 shift_pa);
 
 /**
  * cmdq_pkt_finalize() - Append EOC and jump command to pkt.
@@ -374,7 +376,7 @@ static inline int cmdq_pkt_assign(struct cmdq_pkt *pkt, u16 reg_idx, u32 value)
 	return -EINVAL;
 }
 
-static inline int cmdq_pkt_jump(struct cmdq_pkt *pkt, dma_addr_t addr)
+static inline int cmdq_pkt_jump(struct cmdq_pkt *pkt, dma_addr_t addr, u8 shift_pa)
 {
 	return -EINVAL;
 }
-- 
2.34.1