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| author |   Dennis YC Hsieh <dennis-yc.hsieh@mediatek.com> | 2020-07-07 23:45:12 +0800 |
|---|---|---|
| committer |   Matthias Brugger <matthias.bgg@gmail.com> | 2020-09-25 17:27:38 +0200 |
| commit | 946f1792d3d7942acfbc6afa9a733f608f4622d6 (patch) | |
| tree | f7044c16d244f55a422e5ea8376329f3a52318f0 /include/linux/soc | |
| parent | soc: mediatek: cmdq: add write_s_mask value function (diff) | |
| download | linux-dev-946f1792d3d7942acfbc6afa9a733f608f4622d6.tar.xz linux-dev-946f1792d3d7942acfbc6afa9a733f608f4622d6.zip | |
soc: mediatek: cmdq: add jump function
Add jump function so that client can jump to any address which
contains instruction.
Signed-off-by: Dennis YC Hsieh <dennis-yc.hsieh@mediatek.com>
Link: https://lore.kernel.org/r/1594136714-11650-8-git-send-email-dennis-yc.hsieh@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 | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/include/linux/soc/mediatek/mtk-cmdq.h b/include/linux/soc/mediatek/mtk-cmdq.h index d9390d76ee14..34354e952f60 100644 --- a/include/linux/soc/mediatek/mtk-cmdq.h +++ b/include/linux/soc/mediatek/mtk-cmdq.h @@ -253,6 +253,17 @@ int cmdq_pkt_poll_mask(struct cmdq_pkt *pkt, u8 subsys, int cmdq_pkt_assign(struct cmdq_pkt *pkt, u16 reg_idx, u32 value); /** + * cmdq_pkt_jump() - Append jump command to the CMDQ packet, ask GCE + * to execute an instruction that change current thread PC to + * a physical address which should contains more instruction. + * @pkt: the CMDQ packet + * @addr: physical address of target instruction buffer + * + * Return: 0 for success; else the error code is returned + */ +int cmdq_pkt_jump(struct cmdq_pkt *pkt, dma_addr_t addr); + +/** * cmdq_pkt_finalize() - Append EOC and jump command to pkt. * @pkt: the CMDQ packet * |