From: will.deacon@arm.com (Will Deacon)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH v3 0/9] MMU disabling code and kexec fixes
Date: Wed, 15 Jun 2011 18:23:11 +0100 [thread overview]
Message-ID: <1308158600-7169-1-git-send-email-will.deacon@arm.com> (raw)
Hello,
This is version 3 of the patches originally posted here:
v1: http://lists.infradead.org/pipermail/linux-arm-kernel/2011-June/052157.html
v2: http://lists.infradead.org/pipermail/linux-arm-kernel/2011-June/052559.html
Changes from v2 include:
* No longer remove locking from the L2 invalidation function. I had
previously misdiagnosed the problem here, so it's now fixed
correctly in the disabling code.
* The reserve stack is now aligned to PMD_SIZE instead of SZ_1M so
that it doesn't get clobbered by the identity mapping.
I've tested these patches with kexec on Versatile Express and
Realview-PBX without any problems. It would be nice to get any feedback
on how this can also be used by the hibernation code from Frank and
whether or not any changes are required.
Cheers,
Will
Will Deacon (9):
ARM: l2x0: fix disabling function to avoid deadlock
ARM: proc: add definition of cpu_reset for ARMv6 and ARMv7 cores
ARM: lib: add switch_stack function for safely changing stack
ARM: idmap: add header file for identity mapping functions
ARM: reset: allow kernelspace mappings to be flat mapped during reset
ARM: multi-cpu: remove arguments from CPU proc macros
ARM: reset: add reset functionality for jumping to a physical address
ARM: kexec: use arm_machine_reset for branching to the reboot buffer
ARM: stop: execute platform callback from cpu_stop code
arch/arm/Kconfig | 2 +-
arch/arm/include/asm/idmap.h | 23 +++++++++++++
arch/arm/include/asm/pgtable.h | 3 --
arch/arm/include/asm/proc-fns.h | 14 ++++----
arch/arm/include/asm/system.h | 1 +
arch/arm/kernel/machine_kexec.c | 14 +-------
arch/arm/kernel/process.c | 67 +++++++++++++++++++++++++++++++++------
arch/arm/kernel/smp.c | 5 +++
arch/arm/lib/Makefile | 3 +-
arch/arm/lib/switch_stack.S | 44 +++++++++++++++++++++++++
arch/arm/mm/cache-l2x0.c | 19 +++++++---
arch/arm/mm/idmap.c | 31 +++++++++++++-----
arch/arm/mm/proc-v6.S | 5 +++
arch/arm/mm/proc-v7.S | 7 ++++
14 files changed, 189 insertions(+), 49 deletions(-)
create mode 100644 arch/arm/include/asm/idmap.h
create mode 100644 arch/arm/lib/switch_stack.S
next reply other threads:[~2011-06-15 17:23 UTC|newest]
Thread overview: 11+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-15 17:23 Will Deacon [this message]
2011-06-15 17:23 ` [PATCH v3 1/9] ARM: l2x0: fix disabling function to avoid deadlock Will Deacon
2011-06-16 14:53 ` Catalin Marinas
2011-06-15 17:23 ` [PATCH v3 2/9] ARM: proc: add definition of cpu_reset for ARMv6 and ARMv7 cores Will Deacon
2011-06-15 17:23 ` [PATCH v3 3/9] ARM: lib: add switch_stack function for safely changing stack Will Deacon
2011-06-15 17:23 ` [PATCH v3 4/9] ARM: idmap: add header file for identity mapping functions Will Deacon
2011-06-15 17:23 ` [PATCH v3 5/9] ARM: reset: allow kernelspace mappings to be flat mapped during reset Will Deacon
2011-06-15 17:23 ` [PATCH v3 6/9] ARM: multi-cpu: remove arguments from CPU proc macros Will Deacon
2011-06-15 17:23 ` [PATCH v3 7/9] ARM: reset: add reset functionality for jumping to a physical address Will Deacon
2011-06-15 17:23 ` [PATCH v3 8/9] ARM: kexec: use arm_machine_reset for branching to the reboot buffer Will Deacon
2011-06-15 17:23 ` [PATCH v3 9/9] ARM: stop: execute platform callback from cpu_stop code Will Deacon
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