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authorDennis YC Hsieh <dennis-yc.hsieh@mediatek.com>2020-07-07 17:45:13 +0200
committerMatthias Brugger <matthias.bgg@gmail.com>2020-09-25 17:27:39 +0200
commit23c22299cd290409c6b78f57c42b64f8dfb6dd92 (patch)
tree755d2e731f5cdf86147e3ab68057b7d478830de2
parentsoc: mediatek: cmdq: add jump function (diff)
downloadlinux-23c22299cd290409c6b78f57c42b64f8dfb6dd92.tar.xz
linux-23c22299cd290409c6b78f57c42b64f8dfb6dd92.zip
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>
-rw-r--r--drivers/gpu/drm/mediatek/mtk_drm_crtc.c2
-rw-r--r--drivers/soc/mediatek/mtk-cmdq-helper.c5
-rw-r--r--include/linux/mailbox/mtk-cmdq-mailbox.h3
-rw-r--r--include/linux/soc/mediatek/mtk-cmdq.h5
4 files changed, 8 insertions, 7 deletions
diff --git a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
index 3fc5511330b9..2a332e297ebf 100644
--- a/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
+++ b/drivers/gpu/drm/mediatek/mtk_drm_crtc.c
@@ -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);
diff --git a/drivers/soc/mediatek/mtk-cmdq-helper.c b/drivers/soc/mediatek/mtk-cmdq-helper.c
index d55dc3296105..505651b0d715 100644
--- a/drivers/soc/mediatek/mtk-cmdq-helper.c
+++ b/drivers/soc/mediatek/mtk-cmdq-helper.c
@@ -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);
diff --git a/include/linux/mailbox/mtk-cmdq-mailbox.h b/include/linux/mailbox/mtk-cmdq-mailbox.h
index efbd8a9eb2d1..d5a983d65f05 100644
--- a/include/linux/mailbox/mtk-cmdq-mailbox.h
+++ b/include/linux/mailbox/mtk-cmdq-mailbox.h
@@ -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
diff --git a/include/linux/soc/mediatek/mtk-cmdq.h b/include/linux/soc/mediatek/mtk-cmdq.h
index 34354e952f60..960704d75994 100644
--- a/include/linux/soc/mediatek/mtk-cmdq.h
+++ b/include/linux/soc/mediatek/mtk-cmdq.h
@@ -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