Commit 88a2ffc4 authored by Dennis YC Hsieh's avatar Dennis YC Hsieh Committed by Matthias Brugger
Browse files

soc: mediatek: cmdq: add write_s_mask value function 



add write_s_mask_value function in cmdq helper functions which
writes a constant value to address with mask and large dma
access support.

Signed-off-by: default avatarDennis YC Hsieh <dennis-yc.hsieh@mediatek.com>
Link: https://lore.kernel.org/r/1594136714-11650-7-git-send-email-dennis-yc.hsieh@mediatek.com


Signed-off-by: default avatarMatthias Brugger <matthias.bgg@gmail.com>
parent 1af43fce

drivers/soc/mediatek/mtk-cmdq-helper.c

+21 −0
Original line number Diff line number Diff line
@@ -294,6 +294,27 @@ int cmdq_pkt_write_s_value(struct cmdq_pkt *pkt, u8 high_addr_reg_idx, 
}

EXPORT_SYMBOL(cmdq_pkt_write_s_value);



int cmdq_pkt_write_s_mask_value(struct cmdq_pkt *pkt, u8 high_addr_reg_idx,

				u16 addr_low, u32 value, u32 mask)

{

	struct cmdq_instruction inst = {};

	int err;



	inst.op = CMDQ_CODE_MASK;

	inst.mask = ~mask;

	err = cmdq_pkt_append_command(pkt, inst);

	if (err < 0)

		return err;



	inst.op = CMDQ_CODE_WRITE_S_MASK;

	inst.sop = high_addr_reg_idx;

	inst.offset = addr_low;

	inst.value = value;



	return cmdq_pkt_append_command(pkt, inst);

}

EXPORT_SYMBOL(cmdq_pkt_write_s_mask_value);



int cmdq_pkt_wfe(struct cmdq_pkt *pkt, u16 event)

{

	struct cmdq_instruction inst = { {0} };

include/linux/soc/mediatek/mtk-cmdq.h

+15 −0
Original line number Diff line number Diff line
@@ -164,6 +164,21 @@ int cmdq_pkt_write_s_mask(struct cmdq_pkt *pkt, u16 high_addr_reg_idx, 
int cmdq_pkt_write_s_value(struct cmdq_pkt *pkt, u8 high_addr_reg_idx,

			   u16 addr_low, u32 value);



/**

 * cmdq_pkt_write_s_mask_value() - append write_s command with mask to the CMDQ

 *				   packet which write value to a physical

 *				   address

 * @pkt:	the CMDQ packet

 * @high_addr_reg_idx:	internal register ID which contains high address of pa

 * @addr_low:	low address of pa

 * @value:	the specified target value

 * @mask:	the specified target mask

 *

 * Return: 0 for success; else the error code is returned

 */

int cmdq_pkt_write_s_mask_value(struct cmdq_pkt *pkt, u8 high_addr_reg_idx,

				u16 addr_low, u32 value, u32 mask);



/**

 * cmdq_pkt_wfe() - append wait for event command to the CMDQ packet

 * @pkt:	the CMDQ packet

CRA Git | Maintained and supported by SUSTech CRA and CCSE