linux-toradex.git/arch/arm/include/asm/kexec.h, branch v3.10.8 Linux kernel for Apalis and Colibri modules [ARM] add machine-specific hook to machine_kexec 2011-03-03T21:26:55+00:00 Eric Cooper ecc@cmu.edu 2011-02-02T22:16:09+00:00 868d172b8ac23070418ec6265195e88e8d5dbe92 Provide the option to call a machine-specific function before kexec'ing a new kernel. Signed-off-by: Eric Cooper <ecc@cmu.edu> Signed-off-by: Nicolas Pitre <nico@fluxnic.net> 
Provide the option to call a machine-specific function
before kexec'ing a new kernel.

Signed-off-by: Eric Cooper <ecc@cmu.edu>
Signed-off-by: Nicolas Pitre <nico@fluxnic.net>
ARM: 6518/1: kexec: Fix crash_setup_regs() for ARMv7 and CONFIG_THUMB2_KERNEL 2010-12-04T11:00:53+00:00 Dave Martin dave.martin@linaro.org 2010-12-01T17:05:14+00:00 cd849ae9cd291117c0f7e0e8d531ab62a906e308 * Fix kexec build failure with CONFIG_THUMB2_KERNEL. * Avoids deprecated/forbidden sp and pc usage in for ARMv7 onwards, retaining compatibility with older architecture versions. * The pc value saved to newregs is now aligned on a predictable instruction boundary. (stmia { ... pc } or str pc has implementation-defined results in most versions of the ARM architecutre, and is prohibited (unpredictable) in Thumb-2.) * Switch to named inline asm arguments (else I get readily confused ...) The resulting code should be compatible with all architecture versions >= v3, with or without CONFIG_THUMB2_KERNEL. Reviewed-by: Will Deacon <will.deacon@arm.com> Tested-by: Mika Westerberg <mika.westerberg@iki.fi> Signed-off-by: Dave Martin <dave.martin@linaro.org> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
  * Fix kexec build failure with CONFIG_THUMB2_KERNEL.

  * Avoids deprecated/forbidden sp and pc usage in for ARMv7
    onwards, retaining compatibility with older architecture
    versions.

  * The pc value saved to newregs is now aligned on a predictable
    instruction boundary.

    (stmia { ... pc } or str pc has implementation-defined results
    in most versions of the ARM architecutre, and is prohibited
    (unpredictable) in Thumb-2.)

  * Switch to named inline asm arguments (else I get readily
    confused ...)

    The resulting code should be compatible with all architecture
    versions >= v3, with or without CONFIG_THUMB2_KERNEL.

Reviewed-by: Will Deacon <will.deacon@arm.com>
Tested-by: Mika Westerberg <mika.westerberg@iki.fi>
Signed-off-by: Dave Martin <dave.martin@linaro.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
ARM: 6517/1: kexec: Add missing memory clobber to inline asm in crash_setup_regs() 2010-12-04T11:00:52+00:00 Dave Martin dave.martin@linaro.org 2010-12-01T17:05:13+00:00 0946b8c5c5982088a26da7ad99e8bcf57f972fb5 Currently, the inline asm is passed &newregs->ARM_r0 as in input, when modifying multiple fields of newregs. It's plausible to assume that GCC will assume newregs->ARM_r0 is modified when passed the address, but unfortunately this assumption is incorrect. Also, GCC has no way to guess that the other ARM_r* fields are modified without the addition of a "memory" clobber. Signed-off-by: Dave Martin <dave.martin@linaro.org> Acked-by: Catalin Marinas <catalin.marinas@arm.com> Acked-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
Currently, the inline asm is passed &newregs->ARM_r0 as in input,
when modifying multiple fields of newregs.

It's plausible to assume that GCC will assume newregs->ARM_r0 is
modified when passed the address, but unfortunately this assumption
is incorrect.

Also, GCC has no way to guess that the other ARM_r* fields are
modified without the addition of a "memory" clobber.

Signed-off-by: Dave Martin <dave.martin@linaro.org>
Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
ARM: 6117/1: kdump: implement crash_setup_regs() 2010-07-09T14:00:51+00:00 Mika Westerberg mika.westerberg@iki.fi 2010-05-10T08:22:14+00:00 24b776bfb6396fded148167643ffaf8eb3f782b1 Implement machine specific function crash_setup_regs() which is responsible for storing machine state when crash occured. Signed-off-by: Mika Westerberg <ext-mika.1.westerberg@nokia.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
Implement machine specific function crash_setup_regs() which is
responsible for storing machine state when crash occured.

Signed-off-by: Mika Westerberg <ext-mika.1.westerberg@nokia.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
kexec jump: rename KEXEC_CONTROL_CODE_SIZE to KEXEC_CONTROL_PAGE_SIZE 2008-08-15T15:35:42+00:00 Huang Ying ying.huang@intel.com 2008-08-15T07:40:22+00:00 163f6876f5c3ff8215e900b93779e960a56b3694 Rename KEXEC_CONTROL_CODE_SIZE to KEXEC_CONTROL_PAGE_SIZE, because control page is used for not only code on some platform. For example in kexec jump, it is used for data and stack too. [akpm@linux-foundation.org: unbreak powerpc and arm, finish conversion] Signed-off-by: Huang Ying <ying.huang@intel.com> Cc: Pavel Machek <pavel@ucw.cz> Cc: "Rafael J. Wysocki" <rjw@sisk.pl> Cc: "Eric W. Biederman" <ebiederm@xmission.com> Cc: Vivek Goyal <vgoyal@redhat.com> Cc: Ingo Molnar <mingo@elte.hu> Cc: Russell King <rmk@arm.linux.org.uk> Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> 
Rename KEXEC_CONTROL_CODE_SIZE to KEXEC_CONTROL_PAGE_SIZE, because control
page is used for not only code on some platform.  For example in kexec
jump, it is used for data and stack too.

[akpm@linux-foundation.org: unbreak powerpc and arm, finish conversion]
Signed-off-by: Huang Ying <ying.huang@intel.com>
Cc: Pavel Machek <pavel@ucw.cz>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Cc: "Eric W. Biederman" <ebiederm@xmission.com>
Cc: Vivek Goyal <vgoyal@redhat.com>
Cc: Ingo Molnar <mingo@elte.hu>
Cc: Russell King <rmk@arm.linux.org.uk>
Cc: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
[ARM] move include/asm-arm to arch/arm/include/asm 2008-08-02T20:32:35+00:00 Russell King rmk@dyn-67.arm.linux.org.uk 2008-08-02T09:55:55+00:00 4baa9922430662431231ac637adedddbb0cfb2d7 Move platform independent header files to arch/arm/include/asm, leaving those in asm/arch* and asm/plat* alone. Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
Move platform independent header files to arch/arm/include/asm, leaving
those in asm/arch* and asm/plat* alone.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>