From: santosh.shilimkar@ti•com (Santosh Shilimkar)
To: linux-arm-kernel@lists•infradead.org
Subject: [RFC PATCH 14/17] ARM: kernel: save/restore 1:1 page tables
Date: Thu, 07 Jul 2011 19:24:38 -0700 [thread overview]
Message-ID: <4E166A66.3020001@ti.com> (raw)
In-Reply-To: <1310053830-23779-15-git-send-email-lorenzo.pieralisi@arm.com>
On 7/7/2011 8:50 AM, Lorenzo Pieralisi wrote:
> This patch adds the code required to allocate and populate page tables
> that are needed by save/restore code to deal with MMU off/on
> transactions.
>
> MMU is enabled early in the resume path which allows to call into
> Linux subsystems with init_mm virtual mappings (cloned at boot).
>
> Current thread page table pointer and context id is saved on power
> down from active_mm and restored on warm boot.
> Currently the translation tables contains 1:1 mappings of the Linux
> kernel code and data, and 1:1 UNCACHED mapping of control code required when MMU
> is turned off in the restore code path.
>
> Signed-off-by: Lorenzo Pieralisi<lorenzo.pieralisi@arm•com>
> ---
> arch/arm/kernel/sr_mapping.c | 78 ++++++++++++++++++++++++++++++++++++++++++
> 1 files changed, 78 insertions(+), 0 deletions(-)
> create mode 100644 arch/arm/kernel/sr_mapping.c
>
> diff --git a/arch/arm/kernel/sr_mapping.c b/arch/arm/kernel/sr_mapping.c
> new file mode 100644
> index 0000000..32640dc
> --- /dev/null
> +++ b/arch/arm/kernel/sr_mapping.c
> @@ -0,0 +1,78 @@
> +/*
> + * Copyright (C) 2008-2011 ARM Limited
This is more of question so don't beat me if I am wrong here.
Above file doesn't exist in k.org from 2008 right ?
I noticed this in your other patches too.
Regards
santosh
next prev parent reply other threads:[~2011-07-08 2:24 UTC|newest]
Thread overview: 90+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-07 15:50 [RFC PATCH 00/17] ARM: common idle infrastructure Lorenzo Pieralisi
2011-07-07 15:50 ` [PATCH 01/17] ARM: proc: add definition of cpu_reset for ARMv6 and ARMv7 cores Lorenzo Pieralisi
2011-07-08 1:12 ` Santosh Shilimkar
2011-07-08 8:22 ` Will Deacon
2011-07-09 10:14 ` Russell King - ARM Linux
2011-07-10 11:00 ` Will Deacon
2011-07-10 11:52 ` Russell King - ARM Linux
2011-07-10 13:21 ` Will Deacon
2011-07-07 15:50 ` [PATCH 02/17] ARM: Add cpu power management notifiers Lorenzo Pieralisi
2011-07-08 1:14 ` Santosh Shilimkar
2011-07-09 10:15 ` Russell King - ARM Linux
2011-07-09 21:32 ` Colin Cross
2011-07-07 15:50 ` [PATCH 03/17] ARM: gic: Use cpu pm notifiers to save gic state Lorenzo Pieralisi
2011-07-08 1:35 ` Santosh Shilimkar
2011-07-08 1:41 ` Colin Cross
2011-07-08 2:07 ` Santosh Shilimkar
2011-07-08 7:08 ` Kukjin Kim
2011-07-09 10:21 ` Russell King - ARM Linux
2011-07-09 22:10 ` Colin Cross
2011-07-09 22:33 ` Russell King - ARM Linux
2011-07-09 23:01 ` Colin Cross
2011-07-09 23:05 ` Russell King - ARM Linux
2011-07-09 23:24 ` Colin Cross
2011-07-10 0:10 ` Santosh Shilimkar
2011-07-21 8:32 ` Santosh Shilimkar
2011-07-21 10:27 ` Lorenzo Pieralisi
2011-07-21 10:46 ` Santosh Shilimkar
2011-07-21 19:06 ` Colin Cross
2011-07-22 5:10 ` Santosh Shilimkar
2011-07-22 5:21 ` Colin Cross
2011-08-17 16:15 ` Santosh
2011-07-07 15:50 ` [PATCH 04/17] ARM: vfp: Use cpu pm notifiers to save vfp state Lorenzo Pieralisi
2011-07-09 10:44 ` Russell King - ARM Linux
2011-07-09 14:32 ` Russell King - ARM Linux
2011-07-07 15:50 ` [RFC PATCH 05/17] ARM: kernel: save/restore kernel IF Lorenzo Pieralisi
2011-07-08 1:45 ` Santosh Shilimkar
2011-07-08 8:39 ` Lorenzo Pieralisi
2011-07-08 16:12 ` Frank Hofmann
2011-07-11 14:00 ` Lorenzo Pieralisi
2011-07-11 14:31 ` Frank Hofmann
2011-07-11 16:02 ` Lorenzo Pieralisi
2011-07-11 16:57 ` Frank Hofmann
2011-07-11 18:05 ` Lorenzo Pieralisi
2011-07-11 18:40 ` Russell King - ARM Linux
2011-07-11 18:51 ` Colin Cross
2011-07-11 19:19 ` Russell King - ARM Linux
2011-07-11 19:38 ` Colin Cross
2011-07-11 20:09 ` Santosh Shilimkar
2011-07-11 20:05 ` Santosh Shilimkar
2011-07-11 20:14 ` Russell King - ARM Linux
2011-07-11 21:31 ` Santosh Shilimkar
2011-07-12 10:12 ` Lorenzo Pieralisi
2011-07-12 10:19 ` Russell King - ARM Linux
2011-07-09 8:38 ` Russell King - ARM Linux
2011-07-09 8:45 ` Russell King - ARM Linux
2011-07-11 15:36 ` Lorenzo Pieralisi
2011-07-07 15:50 ` [RFC PATCH 06/17] ARM: kernel: save/restore generic infrastructure Lorenzo Pieralisi
2011-07-08 1:58 ` Santosh Shilimkar
2011-07-08 10:33 ` Lorenzo Pieralisi
2011-07-09 10:01 ` Russell King - ARM Linux
2011-07-11 11:33 ` Lorenzo Pieralisi
2011-07-28 16:22 ` Amit Kachhap
2011-07-28 18:17 ` Lorenzo Pieralisi
2011-07-07 15:50 ` [RFC PATCH 07/17] ARM: kernel: save/restore v7 assembly helpers Lorenzo Pieralisi
2011-07-07 15:50 ` [RFC PATCH 08/17] ARM: kernel: save/restore arch runtime support Lorenzo Pieralisi
2011-07-07 15:50 ` [RFC PATCH 09/17] ARM: kernel: v7 resets support Lorenzo Pieralisi
2011-07-07 15:50 ` [RFC PATCH 10/17] ARM: kernel: save/restore v7 infrastructure support Lorenzo Pieralisi
2011-07-07 15:50 ` [RFC PATCH 11/17] ARM: kernel: add support for Lamport's bakery locks Lorenzo Pieralisi
2011-07-07 15:50 ` [RFC PATCH 12/17] ARM: kernel: add SCU reset hook Lorenzo Pieralisi
2011-07-08 2:14 ` Santosh Shilimkar
2011-07-08 9:47 ` Lorenzo Pieralisi
2011-07-07 15:50 ` [RFC PATCH 13/17] ARM: mm: L2x0 save/restore support Lorenzo Pieralisi
2011-07-07 22:06 ` Colin Cross
2011-07-08 8:25 ` Lorenzo Pieralisi
2011-07-08 2:19 ` Santosh Shilimkar
2011-07-08 10:54 ` Lorenzo Pieralisi
2011-07-07 15:50 ` [RFC PATCH 14/17] ARM: kernel: save/restore 1:1 page tables Lorenzo Pieralisi
2011-07-08 2:24 ` Santosh Shilimkar [this message]
2011-07-08 10:48 ` Lorenzo Pieralisi
2011-07-07 15:50 ` [RFC PATCH 15/17] ARM: perf: use cpu pm notifiers to save pmu state Lorenzo Pieralisi
2011-07-07 15:50 ` [RFC PATCH 16/17] ARM: PM: enhance idle pm notifiers Lorenzo Pieralisi
2011-07-07 21:20 ` Colin Cross
2011-07-08 9:04 ` Lorenzo Pieralisi
2011-07-07 15:50 ` [RFC PATCH 17/17] ARM: kernel: save/restore build infrastructure Lorenzo Pieralisi
2011-07-08 2:29 ` Santosh Shilimkar
2011-07-08 15:14 ` Lorenzo Pieralisi
2011-07-26 12:14 ` Amit Kachhap
2011-07-27 8:48 ` Lorenzo Pieralisi
2011-07-07 17:15 ` [RFC PATCH 00/17] ARM: common idle infrastructure Russell King - ARM Linux
2011-07-08 7:56 ` Lorenzo Pieralisi
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