linux-kernel - [PATCH v6 05/20] soc: mediatek: mtk-cmdq: Add cmdq_pkt_jump_rel_temp() for removing shift

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Message-ID: <20250601173355.1731140-6-jason-jh.lin@mediatek.com>
Date: Mon, 2 Jun 2025 01:31:37 +0800
From: Jason-JH Lin <jason-jh.lin@...iatek.com>
To: Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>, Jassi Brar <jassisinghbrar@...il.com>,
	Chun-Kuang Hu <chunkuang.hu@...nel.org>, AngeloGioacchino Del Regno
	<angelogioacchino.delregno@...labora.com>, Mauro Carvalho Chehab
	<mchehab@...nel.org>
CC: Matthias Brugger <matthias.bgg@...il.com>, Jason-JH Lin
	<jason-jh.lin@...iatek.com>, Nancy Lin <nancy.lin@...iatek.com>, Singo Chang
	<singo.chang@...iatek.com>, Paul-PL Chen <paul-pl.chen@...iatek.com>, Moudy
 Ho <moudy.ho@...iatek.com>, Xavier Chang <xavier.chang@...iatek.com>,
	Xiandong Wang <xiandong.wang@...iatek.com>, Sirius Wang
	<sirius.wang@...iatek.com>, Fei Shao <fshao@...omium.org>, Chen-yu Tsai
	<wenst@...omium.org>, <Project_Global_Chrome_Upstream_Group@...iatek.com>,
	<devicetree@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	<dri-devel@...ts.freedesktop.org>, <linux-mediatek@...ts.infradead.org>,
	<linux-arm-kernel@...ts.infradead.org>, <linux-media@...r.kernel.org>
Subject: [PATCH v6 05/20] soc: mediatek: mtk-cmdq: Add cmdq_pkt_jump_rel_temp() for removing shift_pa

Since shift_pa will be stored into the cmdq_mobx_priv of cmdq_pkt, all
the shif_pa parameters in CMDQ helper APIs can be removed.

Add cmdq_pkt_jump_rel_temp() for the current users of cmdq_pkt_jump_rel(),
and then remove shift_pa after all users have migrated to the new APIs.

Fixes: ade176534112 ("soc: mediatek: cmdq: Add parameter shift_pa to cmdq_pkt_jump()")
Signed-off-by: Jason-JH Lin <jason-jh.lin@...iatek.com>
---
 drivers/soc/mediatek/mtk-cmdq-helper.c | 6 ++++++
 include/linux/soc/mediatek/mtk-cmdq.h  | 9 +++++++++
 2 files changed, 15 insertions(+)

diff --git a/drivers/soc/mediatek/mtk-cmdq-helper.c b/drivers/soc/mediatek/mtk-cmdq-helper.c
index 8feeaa320359..4b1591e5b1ae 100644
--- a/drivers/soc/mediatek/mtk-cmdq-helper.c
+++ b/drivers/soc/mediatek/mtk-cmdq-helper.c
@@ -515,6 +515,12 @@ int cmdq_pkt_jump_rel(struct cmdq_pkt *pkt, s32 offset, u8 shift_pa)
 }
 EXPORT_SYMBOL(cmdq_pkt_jump_rel);
 
+int cmdq_pkt_jump_rel_temp(struct cmdq_pkt *pkt, s32 offset, u8 shift_pa)
+{
+	return cmdq_pkt_jump_rel(pkt, offset, shift_pa);
+}
+EXPORT_SYMBOL(cmdq_pkt_jump_rel_temp);
+
 int cmdq_pkt_eoc(struct cmdq_pkt *pkt)
 {
 	struct cmdq_instruction inst = {
diff --git a/include/linux/soc/mediatek/mtk-cmdq.h b/include/linux/soc/mediatek/mtk-cmdq.h
index 0c3906e8ad19..5e3a0e807980 100644
--- a/include/linux/soc/mediatek/mtk-cmdq.h
+++ b/include/linux/soc/mediatek/mtk-cmdq.h
@@ -377,6 +377,9 @@ static inline int cmdq_pkt_jump(struct cmdq_pkt *pkt, dma_addr_t addr, u8 shift_
  */
 int cmdq_pkt_jump_rel(struct cmdq_pkt *pkt, s32 offset, u8 shift_pa);
 
+/* This wrapper has to be removed after all users migrated to jump_rel */
+int cmdq_pkt_jump_rel_temp(struct cmdq_pkt *pkt, s32 offset, u8 shift_pa);
+
 /**
  * cmdq_pkt_eoc() - Append EOC and ask GCE to generate an IRQ at end of execution
  * @pkt:	The CMDQ packet
@@ -506,6 +509,12 @@ static inline int cmdq_pkt_jump_rel(struct cmdq_pkt *pkt, s32 offset, u8 shift_p
 	return -EINVAL;
 }
 
+/* This wrapper has to be removed after all users migrated to jump_rel */
+static inline int cmdq_pkt_jump_rel_temp(struct cmdq_pkt *pkt, s32 offset, u8 shift_pa)
+{
+	return -EIMVAL;
+}
+
 static inline int cmdq_pkt_eoc(struct cmdq_pkt *pkt)
 {
 	return -EINVAL;
-- 
2.43.0