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| author |   Bibby Hsieh <bibby.hsieh@mediatek.com> | 2019-11-21 09:54:08 +0800 |
|---|---|---|
| committer |   Matthias Brugger <matthias.bgg@gmail.com> | 2020-01-08 12:59:53 +0100 |
| commit | b2ff2356bf93d66e7155acea63dcd503aca6c28f (patch) | |
| tree | b57f5b14c9c282264b876f8702b327ab868beff1 /include/linux/soc | |
| parent | soc: mediatek: cmdq: define the instruction struct (diff) | |
| download | wireguard-linux-b2ff2356bf93d66e7155acea63dcd503aca6c28f.tar.xz wireguard-linux-b2ff2356bf93d66e7155acea63dcd503aca6c28f.zip | |
soc: mediatek: cmdq: add polling function
add polling function in cmdq helper functions
Signed-off-by: Bibby Hsieh <bibby.hsieh@mediatek.com>
Reviewed-by: CK Hu <ck.hu@mediatek.com>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
Diffstat (limited to 'include/linux/soc')
| -rw-r--r-- | include/linux/soc/mediatek/mtk-cmdq.h | 32 |
1 files changed, 32 insertions, 0 deletions
diff --git a/include/linux/soc/mediatek/mtk-cmdq.h b/include/linux/soc/mediatek/mtk-cmdq.h index 9618debb9ceb..92bd5b5c6341 100644 --- a/include/linux/soc/mediatek/mtk-cmdq.h +++ b/include/linux/soc/mediatek/mtk-cmdq.h @@ -100,6 +100,38 @@ int cmdq_pkt_wfe(struct cmdq_pkt *pkt, u16 event); int cmdq_pkt_clear_event(struct cmdq_pkt *pkt, u16 event); /** + * cmdq_pkt_poll() - Append polling command to the CMDQ packet, ask GCE to + * execute an instruction that wait for a specified + * hardware register to check for the value w/o mask. + * All GCE hardware threads will be blocked by this + * instruction. + * @pkt: the CMDQ packet + * @subsys: the CMDQ sub system code + * @offset: register offset from CMDQ sub system + * @value: the specified target register value + * + * Return: 0 for success; else the error code is returned + */ +int cmdq_pkt_poll(struct cmdq_pkt *pkt, u8 subsys, + u16 offset, u32 value); + +/** + * cmdq_pkt_poll_mask() - Append polling command to the CMDQ packet, ask GCE to + * execute an instruction that wait for a specified + * hardware register to check for the value w/ mask. + * All GCE hardware threads will be blocked by this + * instruction. + * @pkt: the CMDQ packet + * @subsys: the CMDQ sub system code + * @offset: register offset from CMDQ sub system + * @value: the specified target register value + * @mask: the specified target register mask + * + * Return: 0 for success; else the error code is returned + */ +int cmdq_pkt_poll_mask(struct cmdq_pkt *pkt, u8 subsys, + u16 offset, u32 value, u32 mask); +/** * cmdq_pkt_flush_async() - trigger CMDQ to asynchronously execute the CMDQ * packet and call back at the end of done packet * @pkt: the CMDQ packet |