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Message-ID: <d0be3159-8094-aed1-d9b1-c4b16d88d67c@linaro.org>
Date: Thu, 29 Sep 2022 14:25:51 +0200
From: Daniel Lezcano <daniel.lezcano@...aro.org>
To: rafael@...nel.org
Cc: linux-kernel@...r.kernel.org, linux-pm@...r.kernel.org,
rui.zhang@...el.com, Raju Rangoju <rajur@...lsio.com>,
"David S. Miller" <davem@...emloft.net>,
Eric Dumazet <edumazet@...gle.com>,
Jakub Kicinski <kuba@...nel.org>,
Paolo Abeni <pabeni@...hat.com>,
Peter Kaestle <peter@...e.net>,
Hans de Goede <hdegoede@...hat.com>,
Mark Gross <markgross@...nel.org>,
Miquel Raynal <miquel.raynal@...tlin.com>,
Amit Kucheria <amitk@...nel.org>,
Nicolas Saenz Julienne <nsaenz@...nel.org>,
Broadcom Kernel Team <bcm-kernel-feedback-list@...adcom.com>,
Florian Fainelli <f.fainelli@...il.com>,
Ray Jui <rjui@...adcom.com>,
Scott Branden <sbranden@...adcom.com>,
Support Opensource <support.opensource@...semi.com>,
Lukasz Luba <lukasz.luba@....com>,
Shawn Guo <shawnguo@...nel.org>,
Sascha Hauer <s.hauer@...gutronix.de>,
Pengutronix Kernel Team <kernel@...gutronix.de>,
Fabio Estevam <festevam@...il.com>,
NXP Linux Team <linux-imx@....com>,
Thara Gopinath <thara.gopinath@...aro.org>,
Andy Gross <agross@...nel.org>,
Bjorn Andersson <bjorn.andersson@...aro.org>,
Niklas Söderlund <niklas.soderlund@...natech.se>,
Bartlomiej Zolnierkiewicz <bzolnier@...il.com>,
Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
Alim Akhtar <alim.akhtar@...sung.com>,
Thierry Reding <thierry.reding@...il.com>,
Jonathan Hunter <jonathanh@...dia.com>,
Eduardo Valentin <edubezval@...il.com>,
Keerthy <j-keerthy@...com>,
Kunihiko Hayashi <hayashi.kunihiko@...ionext.com>,
Masami Hiramatsu <mhiramat@...nel.org>,
Antoine Tenart <atenart@...nel.org>,
Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>,
Dmitry Osipenko <digetx@...il.com>, netdev@...r.kernel.org,
platform-driver-x86@...r.kernel.org,
linux-rpi-kernel@...ts.infradead.org,
linux-arm-kernel@...ts.infradead.org,
linux-arm-msm@...r.kernel.org, linux-renesas-soc@...r.kernel.org,
linux-samsung-soc@...r.kernel.org, linux-tegra@...r.kernel.org,
linux-omap@...r.kernel.org
Subject: Re: [PATCH v7 00/29] Rework the trip points creation
Hi Rafael,
are you happy with the changes? I would like to integrate those changes
with the thermal pull request
On 28/09/2022 23:00, Daniel Lezcano wrote:
> This work is the pre-requisite of handling correctly when the trip
> point are crossed. For that we need to rework how the trip points are
> declared and assigned to a thermal zone.
>
> Even if it appears to be a common sense to have the trip points being
> ordered, this no guarantee neither documentation telling that is the
> case.
>
> One solution could have been to create an ordered array of trips built
> when registering the thermal zone by calling the different get_trip*
> ops. However those ops receive a thermal zone pointer which is not
> known as it is in the process of creating it.
>
> This cyclic dependency shows we have to rework how we manage the trip
> points.
>
> Actually, all the trip points definition can be common to the backend
> sensor drivers and we can factor out the thermal trip structure in all
> of them.
>
> Then, as we register the thermal trips array, they will be available
> in the thermal zone structure and a core function can return the trip
> given its id.
>
> The get_trip_* ops won't be needed anymore and could be removed. The
> resulting code will be another step forward to a self encapsulated
> generic thermal framework.
>
> Most of the drivers can be converted more or less easily. This series
> does a first round with most of the drivers. Some remain and will be
> converted but with a smaller set of changes as the conversion is a bit
> more complex.
>
> Changelog:
> v7:
> - Added missing return 0 in the x86_pkg_temp driver
> v6:
> - Improved the code for the get_crit_temp() function as suggested by Rafael
> - Removed inner parenthesis in the set_trip_temp() function and invert the
> conditions. Check the type of the trip point is unchanged
> - Folded patch 4 with 1
> - Add per thermal zone info message in the bang-bang governor
> - Folded the fix for an uninitialized variable in int340x_thermal_zone_add()
> v5:
> - Fixed a deadlock when calling thermal_zone_get_trip() while
> handling the thermal zone lock
> - Remove an extra line in the sysfs change
> - Collected tags
> v4:
> - Remove extra lines on exynos changes as reported by Krzysztof Kozlowski
> - Collected tags
> v3:
> - Reorg the series to be git-bisect safe
> - Added the set_trip generic function
> - Added the get_crit_temp generic function
> - Removed more dead code in the thermal-of
> - Fixed the exynos changelog
> - Fixed the error check for the exynos drivers
> - Collected tags
> v2:
> - Added missing EXPORT_SYMBOL_GPL() for thermal_zone_get_trip()
> - Removed tab whitespace in the acerhdf driver
> - Collected tags
>
> Cc: Raju Rangoju <rajur@...lsio.com>
> Cc: "David S. Miller" <davem@...emloft.net>
> Cc: Eric Dumazet <edumazet@...gle.com>
> Cc: Jakub Kicinski <kuba@...nel.org>
> Cc: Paolo Abeni <pabeni@...hat.com>
> Cc: Peter Kaestle <peter@...e.net>
> Cc: Hans de Goede <hdegoede@...hat.com>
> Cc: Mark Gross <markgross@...nel.org>
> Cc: Miquel Raynal <miquel.raynal@...tlin.com>
> Cc: "Rafael J. Wysocki" <rafael@...nel.org>
> Cc: Daniel Lezcano <daniel.lezcano@...aro.org>
> Cc: Amit Kucheria <amitk@...nel.org>
> Cc: Zhang Rui <rui.zhang@...el.com>
> Cc: Nicolas Saenz Julienne <nsaenz@...nel.org>
> Cc: Broadcom Kernel Team <bcm-kernel-feedback-list@...adcom.com>
> Cc: Florian Fainelli <f.fainelli@...il.com>
> Cc: Ray Jui <rjui@...adcom.com>
> Cc: Scott Branden <sbranden@...adcom.com>
> Cc: Support Opensource <support.opensource@...semi.com>
> Cc: Lukasz Luba <lukasz.luba@....com>
> Cc: Shawn Guo <shawnguo@...nel.org>
> Cc: Sascha Hauer <s.hauer@...gutronix.de>
> Cc: Pengutronix Kernel Team <kernel@...gutronix.de>
> Cc: Fabio Estevam <festevam@...il.com>
> Cc: NXP Linux Team <linux-imx@....com>
> Cc: Thara Gopinath <thara.gopinath@...aro.org>
> Cc: Andy Gross <agross@...nel.org>
> Cc: Bjorn Andersson <bjorn.andersson@...aro.org>
> Cc: "Niklas Söderlund" <niklas.soderlund@...natech.se>
> Cc: Bartlomiej Zolnierkiewicz <bzolnier@...il.com>
> Cc: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
> Cc: Alim Akhtar <alim.akhtar@...sung.com>
> Cc: Thierry Reding <thierry.reding@...il.com>
> Cc: Jonathan Hunter <jonathanh@...dia.com>
> Cc: Eduardo Valentin <edubezval@...il.com>
> Cc: Keerthy <j-keerthy@...com>
> Cc: Kunihiko Hayashi <hayashi.kunihiko@...ionext.com>
> Cc: Masami Hiramatsu <mhiramat@...nel.org>
> Cc: Antoine Tenart <atenart@...nel.org>
> Cc: Srinivas Pandruvada <srinivas.pandruvada@...ux.intel.com>
> Cc: Dmitry Osipenko <digetx@...il.com>
> Cc: netdev@...r.kernel.org
> Cc: linux-kernel@...r.kernel.org
> Cc: platform-driver-x86@...r.kernel.org
> Cc: linux-pm@...r.kernel.org
> Cc: linux-rpi-kernel@...ts.infradead.org
> Cc: linux-arm-kernel@...ts.infradead.org
> Cc: linux-arm-msm@...r.kernel.org
> Cc: linux-renesas-soc@...r.kernel.org
> Cc: linux-samsung-soc@...r.kernel.org
> Cc: linux-tegra@...r.kernel.org
> Cc: linux-omap@...r.kernel.org
>
> Daniel Lezcano (29):
> thermal/core: Add a generic thermal_zone_get_trip() function
> thermal/sysfs: Always expose hysteresis attributes
> thermal/core: Add a generic thermal_zone_set_trip() function
> thermal/core/governors: Use thermal_zone_get_trip() instead of ops
> functions
> thermal/of: Use generic thermal_zone_get_trip() function
> thermal/of: Remove unused functions
> thermal/drivers/exynos: Use generic thermal_zone_get_trip() function
> thermal/drivers/exynos: of_thermal_get_ntrips()
> thermal/drivers/exynos: Replace of_thermal_is_trip_valid() by
> thermal_zone_get_trip()
> thermal/drivers/tegra: Use generic thermal_zone_get_trip() function
> thermal/drivers/uniphier: Use generic thermal_zone_get_trip() function
> thermal/drivers/hisi: Use generic thermal_zone_get_trip() function
> thermal/drivers/qcom: Use generic thermal_zone_get_trip() function
> thermal/drivers/armada: Use generic thermal_zone_get_trip() function
> thermal/drivers/rcar_gen3: Use the generic function to get the number
> of trips
> thermal/of: Remove of_thermal_get_ntrips()
> thermal/of: Remove of_thermal_is_trip_valid()
> thermal/of: Remove of_thermal_set_trip_hyst()
> thermal/of: Remove of_thermal_get_crit_temp()
> thermal/drivers/st: Use generic trip points
> thermal/drivers/imx: Use generic thermal_zone_get_trip() function
> thermal/drivers/rcar: Use generic thermal_zone_get_trip() function
> thermal/drivers/broadcom: Use generic thermal_zone_get_trip() function
> thermal/drivers/da9062: Use generic thermal_zone_get_trip() function
> thermal/drivers/ti: Remove unused macros ti_thermal_get_trip_value() /
> ti_thermal_trip_is_valid()
> thermal/drivers/acerhdf: Use generic thermal_zone_get_trip() function
> thermal/drivers/cxgb4: Use generic thermal_zone_get_trip() function
> thermal/intel/int340x: Replace parameter to simplify
> thermal/drivers/intel: Use generic thermal_zone_get_trip() function
>
> drivers/net/ethernet/chelsio/cxgb4/cxgb4.h | 2 -
> .../ethernet/chelsio/cxgb4/cxgb4_thermal.c | 41 +----
> drivers/platform/x86/acerhdf.c | 73 +++-----
> drivers/thermal/armada_thermal.c | 39 ++---
> drivers/thermal/broadcom/bcm2835_thermal.c | 8 +-
> drivers/thermal/da9062-thermal.c | 52 +-----
> drivers/thermal/gov_bang_bang.c | 39 +++--
> drivers/thermal/gov_fair_share.c | 18 +-
> drivers/thermal/gov_power_allocator.c | 51 +++---
> drivers/thermal/gov_step_wise.c | 22 ++-
> drivers/thermal/hisi_thermal.c | 11 +-
> drivers/thermal/imx_thermal.c | 72 +++-----
> .../int340x_thermal/int340x_thermal_zone.c | 33 ++--
> .../int340x_thermal/int340x_thermal_zone.h | 4 +-
> .../processor_thermal_device.c | 10 +-
> drivers/thermal/intel/x86_pkg_temp_thermal.c | 120 +++++++------
> drivers/thermal/qcom/qcom-spmi-temp-alarm.c | 39 ++---
> drivers/thermal/rcar_gen3_thermal.c | 2 +-
> drivers/thermal/rcar_thermal.c | 53 +-----
> drivers/thermal/samsung/exynos_tmu.c | 57 +++----
> drivers/thermal/st/st_thermal.c | 47 +----
> drivers/thermal/tegra/soctherm.c | 33 ++--
> drivers/thermal/tegra/tegra30-tsensor.c | 17 +-
> drivers/thermal/thermal_core.c | 161 +++++++++++++++---
> drivers/thermal/thermal_core.h | 24 +--
> drivers/thermal/thermal_helpers.c | 28 +--
> drivers/thermal/thermal_netlink.c | 21 +--
> drivers/thermal/thermal_of.c | 116 -------------
> drivers/thermal/thermal_sysfs.c | 133 +++++----------
> drivers/thermal/ti-soc-thermal/ti-thermal.h | 15 --
> drivers/thermal/uniphier_thermal.c | 27 ++-
> include/linux/thermal.h | 10 ++
> 32 files changed, 560 insertions(+), 818 deletions(-)
>
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