From: Ezequiel Garcia <ezequiel@collabora.com>
To: Enric Balletbo i Serra <enric.balletbo@collabora.com>,
architt@codeaurora.org, inki.dae@samsung.com,
thierry.reding@gmail.com, hjc@rock-chips.com,
seanpaul@chromium.org, airlied@linux.ie, tfiga@chromium.org,
heiko@sntech.de
Cc: dri-devel@lists.freedesktop.org, dianders@chromium.org,
a.hajda@samsung.com, ykk@rock-chips.com, kernel@collabora.com,
m.szyprowski@samsung.com, linux-samsung-soc@vger.kernel.org,
jy0922.shim@samsung.com, rydberg@bitmath.org, krzk@kernel.org,
linux-rockchip@lists.infradead.org, kgene@kernel.org,
linux-input@vger.kernel.org, orjan.eide@arm.com,
wxt@rock-chips.com, jeffy.chen@rock-chips.com,
linux-arm-kernel@lists.infradead.org, mark.yao@rock-chips.com,
wzz@rock-chips.com, hl@rock-chips.com, jingoohan1@gmail.com,
sw0312.kim@samsung.com, linux-kernel@vger.kernel.org,
kyungmin.park@samsung.com, Laurent.pinchart@ideasonboard.com,
kuankuan.y@gmail.com, hshi@chromium.org,
"Kristian H. Kristensen" <hoegsberg@google.com>
Subject: Re: [PATCH v6 24/30] drm/rockchip: Disable PSR on input events
Date: Mon, 16 Apr 2018 16:42:29 -0300 [thread overview]
Message-ID: <aec7e2d36b4599f77bc419b8fe7c415815529c2f.camel@collabora.com> (raw)
In-Reply-To: <20180405095000.9756-25-enric.balletbo@collabora.com>
On Thu, 2018-04-05 at 11:49 +0200, Enric Balletbo i Serra wrote:
> From: "Kristian H. Kristensen" <hoegsberg@google.com>
>
> To improve PSR exit latency, we speculatively start exiting when we
> receive input events. Occasionally, this may lead to false positives,
> but most of the time we get a head start on coming out of PSR.
> Depending
> on how userspace takes to produce a new frame in response to the
> event,
> this can completely hide the exit latency. In case of Chrome OS, we
> typically get the input notifier 50ms or more before the dirty_fb
> triggered exit.
>
Why is this rockchip-specific? It sounds more like something
we'd want to integrate generically for drivers to leverage.
Regards,
Eze
WARNING: multiple messages have this Message-ID (diff)
From: ezequiel@collabora.com (Ezequiel Garcia)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v6 24/30] drm/rockchip: Disable PSR on input events
Date: Mon, 16 Apr 2018 16:42:29 -0300 [thread overview]
Message-ID: <aec7e2d36b4599f77bc419b8fe7c415815529c2f.camel@collabora.com> (raw)
In-Reply-To: <20180405095000.9756-25-enric.balletbo@collabora.com>
On Thu, 2018-04-05 at 11:49 +0200, Enric Balletbo i Serra wrote:
> From: "Kristian H. Kristensen" <hoegsberg@google.com>
>
> To improve PSR exit latency, we speculatively start exiting when we
> receive input events. Occasionally, this may lead to false positives,
> but most of the time we get a head start on coming out of PSR.
> Depending
> on how userspace takes to produce a new frame in response to the
> event,
> this can completely hide the exit latency. In case of Chrome OS, we
> typically get the input notifier 50ms or more before the dirty_fb
> triggered exit.
>
Why is this rockchip-specific? It sounds more like something
we'd want to integrate generically for drivers to leverage.
Regards,
Eze
next prev parent reply other threads:[~2018-04-16 19:43 UTC|newest]
Thread overview: 123+ messages / expand[flat|nested] mbox.gz Atom feed top
2018-04-05 9:49 [PATCH v6 00/30] DRM Rockchip rk3399 (Kevin) Enric Balletbo i Serra
2018-04-05 9:49 ` Enric Balletbo i Serra
2018-04-05 9:49 ` [PATCH v6 01/30] drm/bridge: analogix_dp: Move enable video into config_video() Enric Balletbo i Serra
2018-04-05 9:49 ` Enric Balletbo i Serra
2018-04-05 9:49 ` Enric Balletbo i Serra
2018-04-09 3:37 ` Sasha Levin
2018-04-05 9:49 ` [PATCH v6 02/30] drm/bridge: analogix_dp: Check AUX_EN status when doing AUX transfer Enric Balletbo i Serra
2018-04-05 9:49 ` Enric Balletbo i Serra
2018-04-05 9:49 ` [PATCH v6 03/30] drm/bridge: analogix_dp: Don't use fast link training when panel just powered up Enric Balletbo i Serra
2018-04-05 9:49 ` Enric Balletbo i Serra
2018-04-05 9:49 ` [PATCH v6 04/30] drm/bridge: analogix_dp: Retry bridge enable when it failed Enric Balletbo i Serra
2018-04-05 9:49 ` Enric Balletbo i Serra
2018-04-05 9:49 ` Enric Balletbo i Serra
2018-04-05 9:49 ` [PATCH v6 05/30] drm/bridge: analogix_dp: Wait for HPD signal before configuring link Enric Balletbo i Serra
2018-04-05 9:49 ` Enric Balletbo i Serra
2018-04-05 9:49 ` Enric Balletbo i Serra
2018-04-09 3:37 ` Sasha Levin
2018-04-09 3:37 ` Sasha Levin
2018-04-05 9:49 ` [PATCH v6 06/30] drm/bridge: analogix_dp: Set PD_INC_BG first when powering up edp phy Enric Balletbo i Serra
2018-04-05 9:49 ` Enric Balletbo i Serra
2018-04-05 9:49 ` Enric Balletbo i Serra
2018-04-09 3:36 ` Sasha Levin
2018-04-09 3:36 ` Sasha Levin
2018-04-05 9:49 ` [PATCH v6 07/30] drm/bridge: analogix_dp: Ensure edp is disabled when shutting down the panel Enric Balletbo i Serra
2018-04-05 9:49 ` Enric Balletbo i Serra
2018-04-09 3:36 ` Sasha Levin
2018-04-09 3:36 ` Sasha Levin
2018-04-05 9:49 ` [PATCH v6 08/30] drm/bridge: analogix_dp: Extend hpd check time to 100ms Enric Balletbo i Serra
2018-04-05 9:49 ` Enric Balletbo i Serra
2018-04-05 9:49 ` [PATCH v6 09/30] drm/bridge: analogix_dp: Fix incorrect usage of enhanced mode Enric Balletbo i Serra
2018-04-05 9:49 ` Enric Balletbo i Serra
2018-04-05 9:49 ` [PATCH v6 10/30] drm/bridge: analogix_dp: Check dpcd write/read status Enric Balletbo i Serra
2018-04-05 9:49 ` Enric Balletbo i Serra
2018-04-05 9:49 ` Enric Balletbo i Serra
2018-04-05 9:49 ` [PATCH v6 11/30] drm/bridge: analogix_dp: Fix AUX_PD bit for Rockchip Enric Balletbo i Serra
2018-04-05 9:49 ` Enric Balletbo i Serra
2018-04-05 9:49 ` Enric Balletbo i Serra
2018-04-05 9:49 ` [PATCH v6 12/30] drm/bridge: analogix_dp: Reset aux channel if an error occurred Enric Balletbo i Serra
2018-04-05 9:49 ` Enric Balletbo i Serra
2018-04-05 9:49 ` [PATCH v6 13/30] drm/rockchip: Restore psr->state when enable/disable psr failed Enric Balletbo i Serra
2018-04-05 9:49 ` Enric Balletbo i Serra
2018-04-05 9:49 ` [PATCH v6 14/30] drm/bridge: analogix_dp: Don't use ANALOGIX_DP_PLL_CTL to control pll Enric Balletbo i Serra
2018-04-05 9:49 ` Enric Balletbo i Serra
2018-04-05 9:49 ` [PATCH v6 15/30] drm/bridge: analogix_dp: Fix timeout of video streamclk config Enric Balletbo i Serra
2018-04-05 9:49 ` Enric Balletbo i Serra
2018-04-09 3:36 ` Sasha Levin
2018-04-09 3:36 ` Sasha Levin
2018-04-05 9:49 ` [PATCH v6 16/30] drm/bridge: analogix_dp: Fix incorrect operations with register ANALOGIX_DP_FUNC_EN_1 Enric Balletbo i Serra
2018-04-05 9:49 ` Enric Balletbo i Serra
2018-04-09 3:36 ` Sasha Levin
2018-04-09 3:36 ` Sasha Levin
2018-04-05 9:49 ` [PATCH v6 17/30] drm/bridge: analogix_dp: Move fast link training detect to set_bridge Enric Balletbo i Serra
2018-04-05 9:49 ` Enric Balletbo i Serra
2018-04-05 9:49 ` [PATCH v6 18/30] drm/bridge: analogix_dp: Reorder plat_data->power_off to happen sooner Enric Balletbo i Serra
2018-04-05 9:49 ` Enric Balletbo i Serra
2018-04-09 3:36 ` Sasha Levin
2018-04-05 9:49 ` [PATCH v6 19/30] drm/bridge: analogix_dp: Properly log AUX CH errors Enric Balletbo i Serra
2018-04-05 9:49 ` Enric Balletbo i Serra
2018-04-05 9:49 ` [PATCH v6 20/30] drm/bridge: analogix_dp: Properly disable aux chan retries on rockchip Enric Balletbo i Serra
2018-04-05 9:49 ` Enric Balletbo i Serra
2018-04-05 9:49 ` [PATCH v6 21/30] drm/rockchip: pre dither down when output bpc is 8bit Enric Balletbo i Serra
2018-04-05 9:49 ` Enric Balletbo i Serra
2018-04-09 3:36 ` Sasha Levin
2018-04-09 3:36 ` Sasha Levin
2018-04-05 9:49 ` [PATCH v6 22/30] drm/bridge: analogix_dp: Split the platform-specific poweron in two parts Enric Balletbo i Serra
2018-04-05 9:49 ` Enric Balletbo i Serra
2018-04-05 9:49 ` [PATCH v6 23/30] drm/rockchip: analogix_dp: Do not call Analogix code before bind Enric Balletbo i Serra
2018-04-05 9:49 ` Enric Balletbo i Serra
2018-04-09 3:36 ` Sasha Levin
2018-04-09 3:36 ` Sasha Levin
2018-04-12 9:54 ` Andrzej Hajda
2018-04-12 9:54 ` Andrzej Hajda
2018-04-12 9:54 ` Andrzej Hajda
2018-04-05 9:49 ` [PATCH v6 24/30] drm/rockchip: Disable PSR on input events Enric Balletbo i Serra
2018-04-05 9:49 ` Enric Balletbo i Serra
2018-04-16 7:19 ` Andrzej Hajda
2018-04-16 7:19 ` Andrzej Hajda
2018-04-16 7:19 ` Andrzej Hajda
2018-04-16 17:41 ` Dmitry Torokhov
2018-04-16 17:41 ` Dmitry Torokhov
2018-04-16 17:41 ` Dmitry Torokhov
2018-04-16 19:42 ` Ezequiel Garcia [this message]
2018-04-16 19:42 ` Ezequiel Garcia
2018-04-20 13:47 ` Andrzej Hajda
2018-04-20 13:47 ` Andrzej Hajda
2018-04-20 13:51 ` Enric Balletbo i Serra
2018-04-20 13:51 ` Enric Balletbo i Serra
2018-04-05 9:49 ` [PATCH v6 25/30] drm/rockchip: Cancel PSR enable work before changing the state Enric Balletbo i Serra
2018-04-05 9:49 ` Enric Balletbo i Serra
2018-04-16 8:55 ` Andrzej Hajda
2018-04-16 8:55 ` Andrzej Hajda
2018-04-16 8:55 ` Andrzej Hajda
2018-04-05 9:49 ` [PATCH v6 26/30] drm/rockchip: psr: Avoid redundant calls to .set() callback Enric Balletbo i Serra
2018-04-05 9:49 ` Enric Balletbo i Serra
2018-04-16 9:06 ` Andrzej Hajda
2018-04-16 9:06 ` Andrzej Hajda
2018-04-16 9:06 ` Andrzej Hajda
2018-04-05 9:49 ` [PATCH v6 27/30] drm/rockchip: psr: Sanitize semantics of allow/disallow API Enric Balletbo i Serra
2018-04-05 9:49 ` Enric Balletbo i Serra
2018-04-16 9:26 ` Andrzej Hajda
2018-04-16 9:26 ` Andrzej Hajda
2018-04-16 9:26 ` Andrzej Hajda
2018-04-05 9:49 ` [PATCH v6 28/30] drm/rockchip: Disable PSR from reboot notifier Enric Balletbo i Serra
2018-04-05 9:49 ` Enric Balletbo i Serra
2018-04-16 9:57 ` Andrzej Hajda
2018-04-16 9:57 ` Andrzej Hajda
2018-04-16 9:57 ` Andrzej Hajda
2018-04-16 13:12 ` Tomasz Figa
2018-04-16 13:12 ` Tomasz Figa
2018-04-16 13:12 ` Tomasz Figa
2018-04-18 9:18 ` Enric Balletbo Serra
2018-04-18 9:18 ` Enric Balletbo Serra
2018-04-18 9:18 ` Enric Balletbo Serra
2018-04-05 9:49 ` [PATCH v6 29/30] drm/rockchip: Disallow PSR for the whole atomic commit Enric Balletbo i Serra
2018-04-05 9:49 ` Enric Balletbo i Serra
2018-04-16 9:51 ` Andrzej Hajda
2018-04-16 9:51 ` Andrzej Hajda
2018-04-16 9:51 ` Andrzej Hajda
2018-04-05 9:50 ` [PATCH v6 30/30] drm/rockchip: psr: Remove flush by CRTC Enric Balletbo i Serra
2018-04-05 9:50 ` Enric Balletbo i Serra
2018-04-16 9:53 ` Andrzej Hajda
2018-04-16 9:53 ` Andrzej Hajda
2018-04-16 9:53 ` Andrzej Hajda
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