linux-kernel - [PATCH v6 5/8] mailbox: mediatek: Move reuseable definition to header for secure driver

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Message-ID: <20240525230810.24623-6-jason-jh.lin@mediatek.com>
Date: Sun, 26 May 2024 07:08:07 +0800
From: Jason-JH.Lin <jason-jh.lin@...iatek.com>
To: Jassi Brar <jassisinghbrar@...il.com>, Krzysztof Kozlowski
	<krzysztof.kozlowski+dt@...aro.org>, Rob Herring <robh+dt@...nel.org>,
	Matthias Brugger <matthias.bgg@...il.com>, Chun-Kuang Hu
	<chunkuang.hu@...nel.org>, AngeloGioacchino Del Regno
	<angelogioacchino.delregno@...labora.com>
CC: Conor Dooley <conor+dt@...nel.org>, Jason-ch Chen
	<jason-ch.chen@...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>, <linux-kernel@...r.kernel.org>,
	<devicetree@...r.kernel.org>, <linux-arm-kernel@...ts.infradead.org>,
	<linux-mediatek@...ts.infradead.org>, <dri-devel@...ts.freedesktop.org>,
	<Project_Global_Chrome_Upstream_Group@...iatek.com>
Subject: [PATCH v6 5/8] mailbox: mediatek: Move reuseable definition to header for secure driver

To support CMDQ secure driver, move some reuseable definition to header.
- define: e.g. CMDQ_GCE_NUM_MAX, CMDQ_THR_BASE, CMDQ_THR_SIZE.
- struct: e.g. cmdq_thread, cmdq, cmdq_task.
- include: e.g. <linux/clk.h>.

Add "#include <linux/mailbox_controller.h>" for the function that takes
"struct mbox_chan * chan" as a parameter. That may occur a build error
if secure driver header includes the mtk-cmdq-mailbox.h.
- function: e.g. cmdq_get_shift_pa(struct mbox_chan *chan).

Signed-off-by: Jason-JH.Lin <jason-jh.lin@...iatek.com>
Signed-off-by: Hsiao Chien Sung <shawn.sung@...iatek.com>
---
 drivers/mailbox/mtk-cmdq-mailbox.c       | 30 ---------------------
 include/linux/mailbox/mtk-cmdq-mailbox.h | 33 ++++++++++++++++++++++++
 2 files changed, 33 insertions(+), 30 deletions(-)

diff --git a/drivers/mailbox/mtk-cmdq-mailbox.c b/drivers/mailbox/mtk-cmdq-mailbox.c
index 618023011d31..025e53549a45 100644
--- a/drivers/mailbox/mtk-cmdq-mailbox.c
+++ b/drivers/mailbox/mtk-cmdq-mailbox.c
@@ -3,7 +3,6 @@
 // Copyright (c) 2018 MediaTek Inc.
 
 #include <linux/bitops.h>
-#include <linux/clk.h>
 #include <linux/clk-provider.h>
 #include <linux/dma-mapping.h>
 #include <linux/errno.h>
@@ -22,13 +21,10 @@
 
 #define CMDQ_OP_CODE_MASK		(0xff << CMDQ_OP_CODE_SHIFT)
 #define CMDQ_NUM_CMD(t)			(t->cmd_buf_size / CMDQ_INST_SIZE)
-#define CMDQ_GCE_NUM_MAX		(2)
 
 #define CMDQ_CURR_IRQ_STATUS		0x10
 #define CMDQ_SYNC_TOKEN_UPDATE		0x68
 #define CMDQ_THR_SLOT_CYCLES		0x30
-#define CMDQ_THR_BASE			0x100
-#define CMDQ_THR_SIZE			0x80
 #define CMDQ_THR_WARM_RESET		0x00
 #define CMDQ_THR_ENABLE_TASK		0x04
 #define CMDQ_THR_SUSPEND_TASK		0x08
@@ -59,32 +55,6 @@
 #define CMDQ_JUMP_BY_OFFSET		0x10000000
 #define CMDQ_JUMP_BY_PA			0x10000001
 
-struct cmdq_thread {
-	struct mbox_chan	*chan;
-	void __iomem		*base;
-	struct list_head	task_busy_list;
-	u32			priority;
-};
-
-struct cmdq_task {
-	struct cmdq		*cmdq;
-	struct list_head	list_entry;
-	dma_addr_t		pa_base;
-	struct cmdq_thread	*thread;
-	struct cmdq_pkt		*pkt; /* the packet sent from mailbox client */
-};
-
-struct cmdq {
-	struct mbox_controller	mbox;
-	void __iomem		*base;
-	int			irq;
-	u32			irq_mask;
-	const struct gce_plat	*pdata;
-	struct cmdq_thread	*thread;
-	struct clk_bulk_data	clocks[CMDQ_GCE_NUM_MAX];
-	bool			suspended;
-};
-
 struct gce_plat {
 	u32 thread_nr;
 	u8 shift;
diff --git a/include/linux/mailbox/mtk-cmdq-mailbox.h b/include/linux/mailbox/mtk-cmdq-mailbox.h
index f78a08e7c6ed..43eae45a08c9 100644
--- a/include/linux/mailbox/mtk-cmdq-mailbox.h
+++ b/include/linux/mailbox/mtk-cmdq-mailbox.h
@@ -7,10 +7,17 @@
 #ifndef __MTK_CMDQ_MAILBOX_H__
 #define __MTK_CMDQ_MAILBOX_H__
 
+#include <linux/clk.h>
+#include <linux/mailbox_controller.h>
 #include <linux/platform_device.h>
 #include <linux/slab.h>
 #include <linux/types.h>
 
+#define CMDQ_GCE_NUM_MAX		2
+
+#define CMDQ_THR_BASE			0x100
+#define CMDQ_THR_SIZE			0x80
+
 #define CMDQ_INST_SIZE			8 /* instruction is 64-bit */
 #define CMDQ_SUBSYS_SHIFT		16
 #define CMDQ_OP_CODE_SHIFT		24
@@ -79,6 +86,32 @@ struct cmdq_pkt {
 	bool			loop;
 };
 
+struct cmdq_thread {
+	struct mbox_chan	*chan;
+	void __iomem		*base;
+	struct list_head	task_busy_list;
+	u32			priority;
+};
+
+struct cmdq {
+	struct mbox_controller	mbox;
+	void __iomem		*base;
+	int			irq;
+	u32			irq_mask;
+	const struct gce_plat	*pdata;
+	struct cmdq_thread	*thread;
+	struct clk_bulk_data	clocks[CMDQ_GCE_NUM_MAX];
+	bool			suspended;
+};
+
+struct cmdq_task {
+	struct cmdq		*cmdq;
+	struct list_head	list_entry;
+	dma_addr_t		pa_base;
+	struct cmdq_thread	*thread;
+	struct cmdq_pkt		*pkt; /* the packet sent from mailbox client */
+};
+
 u8 cmdq_get_shift_pa(struct mbox_chan *chan);
 
 #endif /* __MTK_CMDQ_MAILBOX_H__ */
-- 
2.18.0