From: Daniel Lezcano <daniel.lezcano@linaro.org>
To: rui.zhang@intel.com
Cc: linux-kernel@vger.kernel.org, linux-pm@vger.kernel.org,
amit.kucheria@linaro.org
Subject: Re: [PATCH 1/2] thermal/drivers/core: Add init section table for self-encapsulation
Date: Mon, 24 Jun 2019 09:32:36 +0200 [thread overview]
Message-ID: <b6bbd5f4-a86a-d649-e3c0-2156f7975291@linaro.org> (raw)
In-Reply-To: <20190612201325.1150-1-daniel.lezcano@linaro.org>
Any chance this patch gets merged for v5.4?
Thanks
-- Daniel
On 12/06/2019 22:13, Daniel Lezcano wrote:
> Currently the governors are declared in their respective files but they
> export their [un]register functions which in turn call the [un]register
> governors core's functions. That implies a cyclic dependency which is
> not desirable. There is a way to self-encapsulate the governors by letting
> them to declare themselves in a __init section table.
>
> Define the table in the asm generic linker description like the other
> tables and provide the specific macros to deal with.
>
> Reviewed-by: Amit Kucheria <amit.kucheria@linaro.org>
> Signed-off-by: Daniel Lezcano <daniel.lezcano@linaro.org>
> ---
> drivers/thermal/thermal_core.h | 15 +++++++++++++++
> include/asm-generic/vmlinux.lds.h | 11 +++++++++++
> 2 files changed, 26 insertions(+)
>
> diff --git a/drivers/thermal/thermal_core.h b/drivers/thermal/thermal_core.h
> index 0df190ed82a7..be901e84aa65 100644
> --- a/drivers/thermal/thermal_core.h
> +++ b/drivers/thermal/thermal_core.h
> @@ -15,6 +15,21 @@
> /* Initial state of a cooling device during binding */
> #define THERMAL_NO_TARGET -1UL
>
> +/* Init section thermal table */
> +extern struct thermal_governor *__governor_thermal_table[];
> +extern struct thermal_governor *__governor_thermal_table_end[];
> +
> +#define THERMAL_TABLE_ENTRY(table, name) \
> + (static typeof(name) *__thermal_table_entry_##name \
> + __used __section(__##table##_thermal_table) = &name)
> +
> +#define THERMAL_GOVERNOR_DECLARE(name) THERMAL_TABLE_ENTRY(governor, name)
> +
> +#define for_each_governor_table(__governor) \
> + for (__governor = __governor_thermal_table; \
> + __governor < __governor_thermal_table_end; \
> + __governor++)
> +
> /*
> * This structure is used to describe the behavior of
> * a certain cooling device on a certain trip point
> diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h
> index f8f6f04c4453..8312fdc2b2fa 100644
> --- a/include/asm-generic/vmlinux.lds.h
> +++ b/include/asm-generic/vmlinux.lds.h
> @@ -239,6 +239,16 @@
> #define ACPI_PROBE_TABLE(name)
> #endif
>
> +#ifdef CONFIG_THERMAL
> +#define THERMAL_TABLE(name) \
> + . = ALIGN(8); \
> + __##name##_thermal_table = .; \
> + KEEP(*(__##name##_thermal_table)) \
> + __##name##_thermal_table_end = .;
> +#else
> +#define THERMAL_TABLE(name)
> +#endif
> +
> #define KERNEL_DTB() \
> STRUCT_ALIGN(); \
> __dtb_start = .; \
> @@ -609,6 +619,7 @@
> IRQCHIP_OF_MATCH_TABLE() \
> ACPI_PROBE_TABLE(irqchip) \
> ACPI_PROBE_TABLE(timer) \
> + THERMAL_TABLE(governor) \
> EARLYCON_TABLE() \
> LSM_TABLE()
>
>
--
<http://www.linaro.org/> Linaro.org │ Open source software for ARM SoCs
Follow Linaro: <http://www.facebook.com/pages/Linaro> Facebook |
<http://twitter.com/#!/linaroorg> Twitter |
<http://www.linaro.org/linaro-blog/> Blog
next prev parent reply other threads:[~2019-06-24 7:32 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-06-12 20:13 [PATCH 1/2] thermal/drivers/core: Add init section table for self-encapsulation Daniel Lezcano
2019-06-12 20:13 ` [PATCH 2/2] thermal/drivers/core: Use governor table to initialize Daniel Lezcano
2019-06-24 7:32 ` Daniel Lezcano [this message]
2019-06-27 13:21 ` [PATCH 1/2] thermal/drivers/core: Add init section table for self-encapsulation Zhang Rui
2019-06-27 13:31 ` Daniel Lezcano
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=b6bbd5f4-a86a-d649-e3c0-2156f7975291@linaro.org \
--to=daniel.lezcano@linaro.org \
--cc=amit.kucheria@linaro.org \
--cc=linux-kernel@vger.kernel.org \
--cc=linux-pm@vger.kernel.org \
--cc=rui.zhang@intel.com \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).