linux-kernel - RE: [PATCH v6 0/5] ARM: EXYNOS: cpuidle: fix AFTR mode on boards with secure firmware enabled

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Date:	Tue, 09 Sep 2014 12:34:21 +0900
From:	kgene@...nel.org
To:	'Bartlomiej Zolnierkiewicz' <b.zolnierkie@...sung.com>
Cc:	'Daniel Lezcano' <daniel.lezcano@...aro.org>,
	'Sachin Kamat' <sachin.kamat@...aro.org>,
	'Viresh Kumar' <viresh.kumar@...aro.org>,
	"'Rafael J. Wysocki'" <rjw@...ysocki.net>,
	'Kyungmin Park' <kyungmin.park@...sung.com>,
	linux-samsung-soc@...r.kernel.org,
	linux-arm-kernel@...ts.infradead.org, linux-pm@...r.kernel.org,
	linux-kernel@...r.kernel.org, linaro-kernel@...ts.linaro.org
Subject: RE: [PATCH v6 0/5] ARM: EXYNOS: cpuidle: fix AFTR mode on boards with
 secure firmware enabled

Bartlomiej Zolnierkiewicz wrote:
> 
> Hi,
> 
Hi,

> This patch series adds support for AFTR idle mode on boards with
> secure firmware enabled and allows EXYNOS cpuidle driver usage on
> Exynos4x12 SoCs.
> 
> It has been tested on Trats2 board (using Exynos4412 SoC with secure
> firmware enabled) on which AFTR mode reduces power consumption by ~12%

Nice.

> when EXYNOS cpuidle driver is enabled (in both cases the default
> exynos_defconfig config is used and CPU1-3 are offlined).
> 
> Currently Exynos4412 SoC support is limited to Trats2 board.
> 
> Depends on:
> - next-20140904 branch of linux-next kernel tree
> - "irqchip: Properly fetch the per cpu offset" patch
>   (https://www.mail-archive.com/linux-kernel@vger.kernel.org/msg716674.html)
> - [PATCH v3 0/5] Firmware-assisted suspend/resume of Exynos SoCs
>   (https://www.mail-archive.com/linux-samsung-soc@vger.kernel.org/msg35921.html)
> 
OK this series looks good to me, I will take this series once above patches are
landed.

Thanks,
Kukjin

> Changes since v5:
> - rebased on top of next-20140904 +
>   "irqchip: Properly fetch the per cpu offset" patch
>   (https://www.mail-archive.com/linux-kernel@vger.kernel.org/msg716674.html)
>   [PATCH v3 0/5] Firmware-assisted suspend/resume of Exynos SoCs
>   (https://www.mail-archive.com/linux-samsung-soc@vger.kernel.org/msg35921.html)
> - limit Exynos4412 SoC support to Trats2 board for now
> 
> Changes since v4:
> - rebased on top of next-20140804 +
>   [PATCH v5][next-20140804] ARM: EXYNOS: Fix suspend/resume sequences
>   (http://www.mail-archive.com/linux-samsung-soc@vger.kernel.org/msg35262.html)
>   [PATCH v2 0/2] Firmware-assisted suspend/resume of Exynos SoCs
>   (http://www.mail-archive.com/linux-samsung-soc@vger.kernel.org/msg34282.html)
> - call exynos_save_cp15() only on A9 type core (this is needed for the future
>   Exynos3250 SoC support)
> 
> Changes since v3:
> - rebased on top of next-20140804 +
>   [PATCH v4][next-20140804] ARM: EXYNOS: Fix suspend/resume sequences
>   (http://www.mail-archive.com/linux-samsung-soc@vger.kernel.org/msg35192.html)
>   [PATCH v2 0/2] Firmware-assisted suspend/resume of Exynos SoCs
>   (http://www.mail-archive.com/linux-samsung-soc@vger.kernel.org/msg34282.html)
> - (re-)added patch fixing S5P_CENTRAL_SEQ_OPTION register setup
> 
> Changes since v2:
> - rebased on top of next-20140708 +
>   [PATCH 5/6] ARM: EXYNOS: Fix suspend/resume sequencies
>   (http://www.mail-archive.com/linux-samsung-soc@vger.kernel.org/msg32809.html)
>   [with rejects fixed]
>   [PATCH 6/6] ARM: EXYNOS: Register cpuidle device only on Exynos4210 and 5250
>   (http://www.mail-archive.com/linux-samsung-soc@vger.kernel.org/msg32808.html)
>   [PATCH 0/2] Firmware-assisted suspend/resume of Exynos SoCs
>   (http://www.mail-archive.com/linux-samsung-soc@vger.kernel.org/msg32991.html)
>   [with rejects fixed in patch #2]
> - addressed review comments from Tomasz Figa and Daniel Lezcano
> 
> Changes since v1:
> - synced against next-20140602
> - added missing Acked-by-s
> 
> Best regards,
> --
> Bartlomiej Zolnierkiewicz
> Samsung R&D Institute Poland
> Samsung Electronics
> 
> 
> Bartlomiej Zolnierkiewicz (5):
>   ARM: EXYNOS: PM: replace EXYNOS_BOOT_VECTOR_* macros by static inlines
>   ARM: EXYNOS: add AFTR mode support to firmware do_idle method
>   ARM: EXYNOS: cpuidle: add secure firmware support to AFTR mode code
>   ARM: EXYNOS: PM: fix register setup for AFTR mode code
>   ARM: EXYNOS: cpuidle: allow driver usage on Exynos4x12 SoCs
> 
>  arch/arm/include/asm/firmware.h |  2 +-
>  arch/arm/mach-exynos/common.h   |  5 ++++
>  arch/arm/mach-exynos/exynos.c   |  5 +++-
>  arch/arm/mach-exynos/firmware.c | 34 ++++++++++++++++-------
>  arch/arm/mach-exynos/pm.c       | 60 ++++++++++++++++++++++++-----------------
>  5 files changed, 71 insertions(+), 35 deletions(-)
> 
> --
> 1.8.2.3

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