soc: mediatek: cmdq: add polling function

add polling function in cmdq helper functions

Bibby Hsieh committed 6 years ago

Commit b2ff2351 parent 5c8b7183 files · +69 −0Browse files

Showing the changes to include/linux (2 of 3 files). Show all

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2 files

include/linux/mailbox/mtk-cmdq-mailbox.h +1 −0
include/linux/soc/mediatek/mtk-cmdq.h +32 −0

include/linux/mailbox/mtk-cmdq-mailbox.h+1−0

@@ -55,6 +55,7 @@ · 54 unmodified lines
55	enum cmdq_code {	55	enum cmdq_code {
56	CMDQ_CODE_MASK = 0x02,	56	CMDQ_CODE_MASK = 0x02,
57	CMDQ_CODE_WRITE = 0x04,	57	CMDQ_CODE_WRITE = 0x04,
		58	CMDQ_CODE_POLL = 0x08,
58	CMDQ_CODE_JUMP = 0x10,	59	CMDQ_CODE_JUMP = 0x10,
59	CMDQ_CODE_WFE = 0x20,	60	CMDQ_CODE_WFE = 0x20,
60	CMDQ_CODE_EOC = 0x40,	61	CMDQ_CODE_EOC = 0x40,

include/linux/soc/mediatek/mtk-cmdq.h+32−0

@@ -99,6 +99,38 @@ int cmdq_pkt_wfe(struct cmdq_pkt *pkt, u16 event); · 98 unmodified lines
99	*/	99	*/
100	int cmdq_pkt_clear_event(struct cmdq_pkt *pkt, u16 event);	100	int cmdq_pkt_clear_event(struct cmdq_pkt *pkt, u16 event);
101		101
		102	/**
		103	* cmdq_pkt_poll() - Append polling command to the CMDQ packet, ask GCE to
		104	* execute an instruction that wait for a specified
		105	* hardware register to check for the value w/o mask.
		106	* All GCE hardware threads will be blocked by this
		107	* instruction.
		108	* @pkt: the CMDQ packet
		109	* @subsys: the CMDQ sub system code
		110	* @offset: register offset from CMDQ sub system
		111	* @value: the specified target register value
		112	*
		113	* Return: 0 for success; else the error code is returned
		114	*/
		115	int cmdq_pkt_poll(struct cmdq_pkt *pkt, u8 subsys,
		116	u16 offset, u32 value);
		117
		118	/**
		119	* cmdq_pkt_poll_mask() - Append polling command to the CMDQ packet, ask GCE to
		120	* execute an instruction that wait for a specified
		121	* hardware register to check for the value w/ mask.
		122	* All GCE hardware threads will be blocked by this
		123	* instruction.
		124	* @pkt: the CMDQ packet
		125	* @subsys: the CMDQ sub system code
		126	* @offset: register offset from CMDQ sub system
		127	* @value: the specified target register value
		128	* @mask: the specified target register mask
		129	*
		130	* Return: 0 for success; else the error code is returned
		131	*/
		132	int cmdq_pkt_poll_mask(struct cmdq_pkt *pkt, u8 subsys,
		133	u16 offset, u32 value, u32 mask);
102	/**	134	/**
103	* cmdq_pkt_flush_async() - trigger CMDQ to asynchronously execute the CMDQ	135	* cmdq_pkt_flush_async() - trigger CMDQ to asynchronously execute the CMDQ
104	* packet and call back at the end of done packet	136	* packet and call back at the end of done packet