* [PATCH v4 0/6] Initialise thermal framework and cpufreq earlier during boot
@ 2019-10-18 8:51 Amit Kucheria
2019-10-18 8:52 ` [PATCH v4 5/6] clk: qcom: Initialise clock drivers earlier Amit Kucheria
0 siblings, 1 reply; 3+ messages in thread
From: Amit Kucheria @ 2019-10-18 8:51 UTC (permalink / raw)
To: linux-kernel, linux-arm-msm, daniel.lezcano, viresh.kumar,
sudeep.holla, bjorn.andersson, edubezval, agross, tdas, swboyd,
ilina, Rafael J. Wysocki, Amit Kucheria, Ben Segall,
Dietmar Eggemann, Ingo Molnar, Juri Lelli, Mel Gorman,
Peter Zijlstra, Steven Rostedt, Vincent Guittot, Zhang Rui
Cc: linux-clk, linux-doc, linux-pm
Changes since v3:
- Init schedutil governor earlier too
- Simplified changes to thermal_init() error path
- Collects Acks
Changes since v2:
- Missed one patch when posting v2. Respinning.
Changes since v1:
- Completely get rid of netlink support in the thermal framework.
- This changes the early init patch to a single line - change to
core_initcall. Changed authorship of patch since it is nothing like the
original. Lina, let me know if you feel otherwise.
- I've tested to make sure that the qcom-cpufreq-hw driver continues to
work correctly as a module so this won't impact Android's GKI plans.
- Collected Acks
Device boot needs to be as fast as possible while keeping under the thermal
envelope. Now that thermal framework is built-in to the kernel, we can
initialize it earlier to enable thermal mitigation during boot.
We also need the cpufreq HW drivers to be initialised earlier to act as the
cooling devices. This series only converts over the qcom-hw driver to
initialize earlier but can be extended to other platforms as well.
Amit Kucheria (6):
thermal: Remove netlink support
thermal: Initialize thermal subsystem earlier
cpufreq: Initialise the governors in core_initcall
cpufreq: Initialize cpufreq-dt driver earlier
clk: qcom: Initialise clock drivers earlier
cpufreq: qcom-hw: Move driver initialisation earlier
.../driver-api/thermal/sysfs-api.rst | 26 +----
drivers/clk/qcom/clk-rpmh.c | 2 +-
drivers/clk/qcom/gcc-qcs404.c | 2 +-
drivers/clk/qcom/gcc-sdm845.c | 2 +-
drivers/cpufreq/cpufreq-dt-platdev.c | 2 +-
drivers/cpufreq/cpufreq_conservative.c | 2 +-
drivers/cpufreq/cpufreq_ondemand.c | 2 +-
drivers/cpufreq/cpufreq_performance.c | 2 +-
drivers/cpufreq/cpufreq_powersave.c | 2 +-
drivers/cpufreq/cpufreq_userspace.c | 2 +-
drivers/cpufreq/qcom-cpufreq-hw.c | 2 +-
drivers/thermal/thermal_core.c | 103 +-----------------
include/linux/thermal.h | 11 --
kernel/sched/cpufreq_schedutil.c | 2 +-
14 files changed, 19 insertions(+), 143 deletions(-)
--
2.17.1
^ permalink raw reply [flat|nested] 3+ messages in thread
* [PATCH v4 5/6] clk: qcom: Initialise clock drivers earlier
2019-10-18 8:51 [PATCH v4 0/6] Initialise thermal framework and cpufreq earlier during boot Amit Kucheria
@ 2019-10-18 8:52 ` Amit Kucheria
2019-10-18 9:52 ` Viresh Kumar
0 siblings, 1 reply; 3+ messages in thread
From: Amit Kucheria @ 2019-10-18 8:52 UTC (permalink / raw)
To: linux-kernel, linux-arm-msm, daniel.lezcano, viresh.kumar,
sudeep.holla, bjorn.andersson, edubezval, agross, tdas, swboyd,
ilina, Rafael J. Wysocki, Amit Kucheria, Ben Segall,
Dietmar Eggemann, Ingo Molnar, Juri Lelli, Mel Gorman,
Peter Zijlstra, Steven Rostedt, Vincent Guittot, Zhang Rui
Cc: linux-clk
Initialise the clock drivers on sdm845 and qcs404 in core_initcall so we
can have earlier access to cpufreq during booting.
Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
Acked-by: Stephen Boyd <sboyd@kernel.org>
---
drivers/clk/qcom/clk-rpmh.c | 2 +-
drivers/clk/qcom/gcc-qcs404.c | 2 +-
drivers/clk/qcom/gcc-sdm845.c | 2 +-
3 files changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/clk/qcom/clk-rpmh.c b/drivers/clk/qcom/clk-rpmh.c
index 96a36f6ff667d..20d4258f125b9 100644
--- a/drivers/clk/qcom/clk-rpmh.c
+++ b/drivers/clk/qcom/clk-rpmh.c
@@ -487,7 +487,7 @@ static int __init clk_rpmh_init(void)
{
return platform_driver_register(&clk_rpmh_driver);
}
-subsys_initcall(clk_rpmh_init);
+core_initcall(clk_rpmh_init);
static void __exit clk_rpmh_exit(void)
{
diff --git a/drivers/clk/qcom/gcc-qcs404.c b/drivers/clk/qcom/gcc-qcs404.c
index bd32212f37e64..9b0c4ce2ef4ec 100644
--- a/drivers/clk/qcom/gcc-qcs404.c
+++ b/drivers/clk/qcom/gcc-qcs404.c
@@ -2855,7 +2855,7 @@ static int __init gcc_qcs404_init(void)
{
return platform_driver_register(&gcc_qcs404_driver);
}
-subsys_initcall(gcc_qcs404_init);
+core_initcall(gcc_qcs404_init);
static void __exit gcc_qcs404_exit(void)
{
diff --git a/drivers/clk/qcom/gcc-sdm845.c b/drivers/clk/qcom/gcc-sdm845.c
index 95be125c3bddf..49dcff1af2db1 100644
--- a/drivers/clk/qcom/gcc-sdm845.c
+++ b/drivers/clk/qcom/gcc-sdm845.c
@@ -3628,7 +3628,7 @@ static int __init gcc_sdm845_init(void)
{
return platform_driver_register(&gcc_sdm845_driver);
}
-subsys_initcall(gcc_sdm845_init);
+core_initcall(gcc_sdm845_init);
static void __exit gcc_sdm845_exit(void)
{
--
2.17.1
^ permalink raw reply related [flat|nested] 3+ messages in thread
* Re: [PATCH v4 5/6] clk: qcom: Initialise clock drivers earlier
2019-10-18 8:52 ` [PATCH v4 5/6] clk: qcom: Initialise clock drivers earlier Amit Kucheria
@ 2019-10-18 9:52 ` Viresh Kumar
0 siblings, 0 replies; 3+ messages in thread
From: Viresh Kumar @ 2019-10-18 9:52 UTC (permalink / raw)
To: Amit Kucheria
Cc: linux-kernel, linux-arm-msm, daniel.lezcano, sudeep.holla,
bjorn.andersson, edubezval, agross, tdas, swboyd, ilina,
Rafael J. Wysocki, Amit Kucheria, Ben Segall, Dietmar Eggemann,
Ingo Molnar, Juri Lelli, Mel Gorman, Peter Zijlstra,
Steven Rostedt, Vincent Guittot, Zhang Rui, linux-clk
On 18-10-19, 14:22, Amit Kucheria wrote:
> Initialise the clock drivers on sdm845 and qcs404 in core_initcall so we
> can have earlier access to cpufreq during booting.
>
> Signed-off-by: Amit Kucheria <amit.kucheria@linaro.org>
> Acked-by: Stephen Boyd <sboyd@kernel.org>
> ---
> drivers/clk/qcom/clk-rpmh.c | 2 +-
> drivers/clk/qcom/gcc-qcs404.c | 2 +-
> drivers/clk/qcom/gcc-sdm845.c | 2 +-
> 3 files changed, 3 insertions(+), 3 deletions(-)
Acked-by: Viresh Kumar <viresh.kumar@linaro.org>
--
viresh
^ permalink raw reply [flat|nested] 3+ messages in thread
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2019-10-18 8:51 [PATCH v4 0/6] Initialise thermal framework and cpufreq earlier during boot Amit Kucheria
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