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soc: mediatek: cmdq: add clear option in cmdq_pkt_wfe api 

Add clear parameter to let client decide if
event should be clear to 0 after GCE receive it.

Signed-off-by: Dennis YC Hsieh <dennis-yc.hsieh@mediatek.com>
Acked-by: Chun-Kuang Hu <chunkuang.hu@kernel.org>
Link: https://lore.kernel.org/r/1594136714-11650-9-git-send-email-dennis-yc.hsieh@mediatek.com
[mb: fix commit message]
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>
This commit is contained in:
Dennis YC Hsieh 2020-07-07 23:45:13 +08:00 committed by Matthias Brugger
parent 946f1792d3
commit 23c22299cd
4 changed files with 8 additions and 7 deletions
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2
drivers/gpu/drm/mediatek/mtk_drm_crtc.c
View File

@ -481,7 +481,7 @@ static void mtk_drm_crtc_hw_config(struct mtk_drm_crtc *mtk_crtc)
mbox_flush(mtk_crtc->cmdq_client->chan, 2000);
cmdq_handle = cmdq_pkt_create(mtk_crtc->cmdq_client, PAGE_SIZE);
cmdq_pkt_clear_event(cmdq_handle, mtk_crtc->cmdq_event);
cmdq_pkt_wfe(cmdq_handle, mtk_crtc->cmdq_event);
cmdq_pkt_wfe(cmdq_handle, mtk_crtc->cmdq_event, true);
mtk_crtc_ddp_config(crtc, cmdq_handle);
cmdq_pkt_finalize(cmdq_handle);
cmdq_pkt_flush_async(cmdq_handle, ddp_cmdq_cb, cmdq_handle);

5
drivers/soc/mediatek/mtk-cmdq-helper.c
View File

@ -316,15 +316,16 @@ int cmdq_pkt_write_s_mask_value(struct cmdq_pkt *pkt, u8 high_addr_reg_idx,
}
EXPORT_SYMBOL(cmdq_pkt_write_s_mask_value);
int cmdq_pkt_wfe(struct cmdq_pkt *pkt, u16 event)
int cmdq_pkt_wfe(struct cmdq_pkt *pkt, u16 event, bool clear)
{
struct cmdq_instruction inst = { {0} };
u32 clear_option = clear ? CMDQ_WFE_UPDATE : 0;
if (event >= CMDQ_MAX_EVENT)
return -EINVAL;
inst.op = CMDQ_CODE_WFE;
inst.value = CMDQ_WFE_OPTION;
inst.value = CMDQ_WFE_OPTION | clear_option;
inst.event = event;
return cmdq_pkt_append_command(pkt, inst);

3
include/linux/mailbox/mtk-cmdq-mailbox.h
View File

@ -28,8 +28,7 @@
* bit 16-27: update value
* bit 31: 1 - update, 0 - no update
*/
#define CMDQ_WFE_OPTION (CMDQ_WFE_UPDATE | CMDQ_WFE_WAIT | \
CMDQ_WFE_WAIT_VALUE)
#define CMDQ_WFE_OPTION (CMDQ_WFE_WAIT | CMDQ_WFE_WAIT_VALUE)
/** cmdq event maximum */
#define CMDQ_MAX_EVENT 0x3ff

5
include/linux/soc/mediatek/mtk-cmdq.h
View File

@ -182,11 +182,12 @@ int cmdq_pkt_write_s_mask_value(struct cmdq_pkt *pkt, u8 high_addr_reg_idx,
/**
* cmdq_pkt_wfe() - append wait for event command to the CMDQ packet
* @pkt: the CMDQ packet
* @event: the desired event type to "wait and CLEAR"
* @event: the desired event type to wait
* @clear: clear event or not after event arrive
*
* Return: 0 for success; else the error code is returned
*/
int cmdq_pkt_wfe(struct cmdq_pkt *pkt, u16 event);
int cmdq_pkt_wfe(struct cmdq_pkt *pkt, u16 event, bool clear);
/**
* cmdq_pkt_clear_event() - append clear event command to the CMDQ packet