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From: Pavel Machek <pavel@ucw.cz>
To: James Morse <james.morse@arm.com>
Cc: linux-arm-kernel@lists.infradead.org,
	Will Deacon <will.deacon@arm.com>,
	Sudeep Holla <sudeep.holla@arm.com>,
	Kevin Kang <kkang@intrinsyc.com>,
	Geoff Levand <geoff@infradead.org>,
	Catalin Marinas <catalin.marinas@arm.com>,
	Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>,
	Mark Rutland <mark.rutland@arm.com>,
	AKASHI Takahiro <takahiro.akashi@linaro.org>,
	wangfei <w.f@huawei.com>, Marc Zyngier <marc.zyngier@arm.com>,
	"Rafael J . Wysocki" <rjw@rjwysocki.net>,
	linux-pm@vger.kernel.org
Subject: Re: [PATCH v3 10/10] arm64: kernel: Add support for hibernate/suspend-to-disk.
Date: Tue, 1 Dec 2015 10:31:43 +0100	[thread overview]
Message-ID: <20151201093143.GD21222@amd> (raw)
In-Reply-To: <1448559168-8363-11-git-send-email-james.morse@arm.com>

Hi!

> Suspend borrows code from cpu_suspend() to write cpu state onto the stack,
> before calling swsusp_save() to save the memory image.
> 
> Restore creates a set of temporary page tables, covering the kernel and the
> linear map, copies the restore code to a 'safe' page, then uses the copy to
> restore the memory image. It calls into cpu_resume(),
> and then follows the normal cpu_suspend() path back into the suspend code.
> 
> The implementation assumes that exactly the same kernel is booted on the
> same hardware, and that the kernel is loaded at the same physical address.
> 
> Signed-off-by: James Morse <james.morse@arm.com>
> Acked-by: Pavel Machek <pavel@ucw.cz>

> diff --git a/arch/arm64/include/asm/suspend.h b/arch/arm64/include/asm/suspend.h
> index 5faa3ce1fa3a..e75ad7aa268c 100644
> --- a/arch/arm64/include/asm/suspend.h
> +++ b/arch/arm64/include/asm/suspend.h
> @@ -1,3 +1,5 @@
> +#include <linux/suspend.h>
> +
>  #ifndef __ASM_SUSPEND_H
>  #define __ASM_SUSPEND_H
>

Actually... even additional includes should go after the #ifdef
guards.

Thanks,
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

WARNING: multiple messages have this Message-ID (diff)
From: pavel@ucw.cz (Pavel Machek)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3 10/10] arm64: kernel: Add support for hibernate/suspend-to-disk.
Date: Tue, 1 Dec 2015 10:31:43 +0100	[thread overview]
Message-ID: <20151201093143.GD21222@amd> (raw)
In-Reply-To: <1448559168-8363-11-git-send-email-james.morse@arm.com>

Hi!

> Suspend borrows code from cpu_suspend() to write cpu state onto the stack,
> before calling swsusp_save() to save the memory image.
> 
> Restore creates a set of temporary page tables, covering the kernel and the
> linear map, copies the restore code to a 'safe' page, then uses the copy to
> restore the memory image. It calls into cpu_resume(),
> and then follows the normal cpu_suspend() path back into the suspend code.
> 
> The implementation assumes that exactly the same kernel is booted on the
> same hardware, and that the kernel is loaded at the same physical address.
> 
> Signed-off-by: James Morse <james.morse@arm.com>
> Acked-by: Pavel Machek <pavel@ucw.cz>

> diff --git a/arch/arm64/include/asm/suspend.h b/arch/arm64/include/asm/suspend.h
> index 5faa3ce1fa3a..e75ad7aa268c 100644
> --- a/arch/arm64/include/asm/suspend.h
> +++ b/arch/arm64/include/asm/suspend.h
> @@ -1,3 +1,5 @@
> +#include <linux/suspend.h>
> +
>  #ifndef __ASM_SUSPEND_H
>  #define __ASM_SUSPEND_H
>

Actually... even additional includes should go after the #ifdef
guards.

Thanks,
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

  reply	other threads:[~2015-12-01  9:31 UTC|newest]

Thread overview: 50+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-11-26 17:32 [PATCH v3 00/10] arm64: kernel: Add support for hibernate/suspend-to-disk James Morse
2015-11-26 17:32 ` James Morse
2015-11-26 17:32 ` [PATCH v3 01/10] arm64: Fold proc-macros.S into assembler.h James Morse
2015-11-26 17:32   ` James Morse
2015-12-01  9:18   ` Pavel Machek
2015-12-01  9:18     ` Pavel Machek
2015-11-26 17:32 ` [PATCH v3 02/10] arm64: Convert hcalls to use HVC immediate value James Morse
2015-11-26 17:32   ` James Morse
2015-11-26 17:32 ` [PATCH v3 03/10] arm64: Add new hcall HVC_CALL_FUNC James Morse
2015-11-26 17:32   ` James Morse
2015-11-26 17:32 ` [PATCH v3 04/10] arm64: kvm: allows kvm cpu hotplug James Morse
2015-11-26 17:32   ` James Morse
2015-11-26 17:32 ` [PATCH v3 05/10] arm64: kernel: Rework finisher callback out of __cpu_suspend_enter() James Morse
2015-11-26 17:32   ` James Morse
2015-11-26 17:32 ` [PATCH v3 06/10] arm64: Change cpu_resume() to enable mmu early then access sleep_sp by va James Morse
2015-11-26 17:32   ` James Morse
2015-11-26 17:32 ` [PATCH v3 07/10] arm64: kernel: Include _AC definition in page.h James Morse
2015-11-26 17:32   ` James Morse
2015-12-01  9:28   ` Pavel Machek
2015-12-01  9:28     ` Pavel Machek
2015-11-26 17:32 ` [PATCH v3 08/10] arm64: Promote KERNEL_START/KERNEL_END definitions to a header file James Morse
2015-11-26 17:32   ` James Morse
2015-12-01  9:28   ` Pavel Machek
2015-12-01  9:28     ` Pavel Machek
2015-11-26 17:32 ` [PATCH v3 09/10] PM / Hibernate: Publish pages restored in-place to arch code James Morse
2015-11-26 17:32   ` James Morse
2015-12-03 12:09   ` Lorenzo Pieralisi
2015-12-03 12:09     ` Lorenzo Pieralisi
2015-12-04 16:26     ` James Morse
2015-12-04 16:26       ` James Morse
2015-12-05  9:35   ` Pavel Machek
2015-12-05  9:35     ` Pavel Machek
2015-12-07 11:28     ` James Morse
2015-12-07 11:28       ` James Morse
2015-12-08  8:19       ` Pavel Machek
2015-12-08  8:19         ` Pavel Machek
2015-12-16  9:55         ` James Morse
2015-12-16  9:55           ` James Morse
2015-11-26 17:32 ` [PATCH v3 10/10] arm64: kernel: Add support for hibernate/suspend-to-disk James Morse
2015-11-26 17:32   ` James Morse
2015-12-01  9:31   ` Pavel Machek [this message]
2015-12-01  9:31     ` Pavel Machek
2015-12-08 10:39     ` James Morse
2015-12-08 10:39       ` James Morse
2015-12-08 11:48   ` [PATCH] fixup! " James Morse
2015-12-08 11:48     ` James Morse
2015-12-15 17:42   ` [PATCH v3 10/10] " Catalin Marinas
2015-12-15 17:42     ` Catalin Marinas
2015-12-18 11:37 ` [ALT-PATCH v3 9/10] PM / Hibernate: Call flush_icache_range() on pages restored in-place James Morse
2015-12-18 11:37   ` James Morse

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