kernel/include/linux/soc/mediatek/mtk-cmdq.h, branch linux-5.2.yHosts the 0x221E linux distro kernel.https://universe.0xinfinity.dev/distro/kernel/atom?h=linux-5.2.y2019-10-07T16:59:19Zmailbox: mediatek: cmdq: clear the event in cmdq initial flow2019-10-07T16:59:19ZBibby Hsiehbibby.hsieh@mediatek.com2019-08-29T01:48:12Zurn:sha1:15786d677bbc22a7a02fa2f6c443fe1e36b5af7b
[ Upstream commit 6058f11870b8e6d4f5cc7b591097c00bf69a000d ]
GCE hardware stored event information in own internal sysram,
if the initial value in those sysram is not zero value
it will cause a situation that gce can wait the event immediately
after client ask gce to wait event but not really trigger the
corresponding hardware.
In order to make sure that the wait event function is
exactly correct, we need to clear the sysram value in
cmdq initial flow.
Fixes: 623a6143a845 ("mailbox: mediatek: Add Mediatek CMDQ driver")
Signed-off-by: Bibby Hsieh <bibby.hsieh@mediatek.com>
Reviewed-by: CK Hu <ck.hu@mediatek.com>
Reviewed-by: Matthias Brugger <matthias.bgg@gmail.com>
Signed-off-by: Jassi Brar <jaswinder.singh@linaro.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
soc: mediatek: Add Mediatek CMDQ helper2018-12-02T19:46:10ZHoulong Weihoulong.wei@mediatek.com2018-11-29T03:37:09Zurn:sha1:576f1b4bc80220e1f88f1de5ecb25d99a6e9fa04
Add Mediatek CMDQ helper to create CMDQ packet and assemble GCE op code.
Signed-off-by: Houlong Wei <houlong.wei@mediatek.com>
Signed-off-by: HS Liao <hs.liao@mediatek.com>
Signed-off-by: Matthias Brugger <matthias.bgg@gmail.com>