From: Philipp Zabel <p.zabel@pengutronix.de>
To: dri-devel@lists.freedesktop.org
Cc: Russell King <linux@arm.linux.org.uk>,
Dan MacDonald <allcoms@gmail.com>,
kernel@pengutronix.de
Subject: [PATCH v2 0/4] Fix DP busy wait and defer disabling overlay plane
Date: Mon, 27 Feb 2017 14:14:54 +0100 [thread overview]
Message-ID: <1488201298-7160-1-git-send-email-p.zabel@pengutronix.de> (raw)
Hi,
second try. This time keeping the IPU_SRM_PRI2 register values intact.
This series fixes an issue with the IPU DC/DP/IDMAC disable sequence. The
interrupt waiting code didn't work as expected, sometimes causing busy waits
longer than the timeout in drm_atomic_helper_wait_for_vblanks, which would
cause crashes similar to the reported "imxdrm issue on SABRE Lite" [1].
[1] http://www.spinics.net/lists/dri-devel/msg132485.html
I could only reproduce the error when the overlay plane was involved, using
weston with the atomic modeset patchset to trigger it, so I'm not sure if this
fixes the issue above, too.
regards
Philipp
Lucas Stach (1):
gpu: ipu-v3: remove IRQ dance on DC channel disable
Philipp Zabel (3):
gpu: ipu-v3: add unsynchronised DP channel disabling
drm/imx: call drm_atomic_helper_commit_hw_done after
drm_atomic_helper_wait_for_vblanks
drm/imx: add deferred plane disabling
drivers/gpu/drm/imx/imx-drm-core.c | 11 +++++--
drivers/gpu/drm/imx/ipuv3-crtc.c | 22 +++++++++++++-
drivers/gpu/drm/imx/ipuv3-plane.c | 24 ++++++++++-----
drivers/gpu/drm/imx/ipuv3-plane.h | 5 ++++
drivers/gpu/ipu-v3/ipu-common.c | 8 +++--
drivers/gpu/ipu-v3/ipu-dc.c | 61 +++-----------------------------------
drivers/gpu/ipu-v3/ipu-dp.c | 15 ++++------
drivers/gpu/ipu-v3/ipu-prv.h | 7 ++++-
include/video/imx-ipu-v3.h | 2 +-
9 files changed, 74 insertions(+), 81 deletions(-)
--
2.11.0
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next reply other threads:[~2017-02-27 13:15 UTC|newest]
Thread overview: 10+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-02-27 13:14 Philipp Zabel [this message]
2017-02-27 13:14 ` [PATCH v2 1/4] gpu: ipu-v3: remove IRQ dance on DC channel disable Philipp Zabel
2017-02-27 13:14 ` [PATCH v2 2/4] gpu: ipu-v3: add unsynchronised DP channel disabling Philipp Zabel
2017-02-27 13:35 ` Lucas Stach
2017-02-27 13:14 ` [PATCH v2 3/4] drm/imx: call drm_atomic_helper_commit_hw_done after drm_atomic_helper_wait_for_vblanks Philipp Zabel
2017-02-27 16:25 ` Daniel Vetter
2017-02-28 9:59 ` Philipp Zabel
2017-02-28 11:45 ` Daniel Vetter
2017-02-28 13:23 ` Philipp Zabel
2017-02-27 13:14 ` [PATCH v2 4/4] drm/imx: add deferred plane disabling Philipp Zabel
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