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soc: mediatek: cmdq: add write_s_mask value function

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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: Dennis 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: Matthias Brugger <matthias.bgg@gmail.com>
This commit is contained in:
Dennis YC Hsieh 2020-07-07 23:45:11 +08:00 committed by Matthias Brugger
parent 1af43fce81
commit 88a2ffc48d
2 changed files with 36 additions and 0 deletions
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21
drivers/soc/mediatek/mtk-cmdq-helper.c
View File

@ -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} };

15
include/linux/soc/mediatek/mtk-cmdq.h
View File

@ -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