linux-toradex.git/arch/arm/boot, branch v3.0.63 Linux kernel for Apalis and Colibri modules ARM: 7532/1: decompressor: reset SCTLR.TRE for VMSA ARMv7 cores 2012-10-02T16:47:27+00:00 Matthew Leach matthew.leach@arm.com 2012-09-11T16:56:57+00:00 ae9973c90989ac2893398af11b02351d6d623450 commit e1e5b7e4251c7538ca08c2c5545b0c2fbd8a6635 upstream. This patch zeroes the SCTLR.TRE bit prior to setting the mapping as cacheable for ARMv7 cores in the decompressor, ensuring that the memory region attributes are obtained from the C and B bits, not from the page tables. Cc: Nicolas Pitre <nico@fluxnic.net> Reviewed-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Matthew Leach <matthew.leach@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org> 
commit e1e5b7e4251c7538ca08c2c5545b0c2fbd8a6635 upstream.

This patch zeroes the SCTLR.TRE bit prior to setting the mapping as
cacheable for ARMv7 cores in the decompressor, ensuring that the
memory region attributes are obtained from the C and B bits, not from
the page tables.

Cc: Nicolas Pitre <nico@fluxnic.net>
Reviewed-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Matthew Leach <matthew.leach@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
ARM: 6961/1: zImage: Add build-time check for correctly-sized proc_type entries 2011-06-21T10:33:20+00:00 Dave Martin dave.martin@linaro.org 2011-06-14T13:20:44+00:00 946a105e16651c35e9cc670bff23812761f1ad35 It is easy to mis-maintain the proc_types table such that the entries become wrongly-sized and misaligned when the kernel is built in Thumb-2. This patch adds an assembly-time check which will turn most common size/alignment mistakes in this table into build failures, to avoid having to debug the boot-time kernel hang which would happen if the resulting kernel were actually booted. Signed-off-by: Dave Martin <dave.martin@linaro.org> Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
It is easy to mis-maintain the proc_types table such that the
entries become wrongly-sized and misaligned when the kernel is
built in Thumb-2.

This patch adds an assembly-time check which will turn most common
size/alignment mistakes in this table into build failures, to avoid
having to debug the boot-time kernel hang which would happen if the
resulting kernel were actually booted.

Signed-off-by: Dave Martin <dave.martin@linaro.org>
Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
ARM: 6954/1: zImage: fix Thumb2 breakage 2011-06-09T09:15:06+00:00 Nicolas Pitre nicolas.pitre@linaro.org 2011-06-09T04:05:27+00:00 720c60e1943a06cfd9472ad5a9967dec304e4394 Commit af3e4fd37a "ARM: 6859/1: Add writethrough dcache support for ARM926EJS processor" broke Thumb2 compilation by omitting to maintain the wide encoding for the added branch instructions which made the ARM926EJ-S record smaller than expected, breaking the record walk code. Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org> Cc: Mark A. Greer <mgreer@mvista.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
Commit af3e4fd37a "ARM: 6859/1: Add writethrough dcache support for
ARM926EJS processor" broke Thumb2 compilation by omitting to maintain
the wide encoding for the added branch instructions which made the
ARM926EJ-S record smaller than expected, breaking the record walk code.

Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Cc: Mark A. Greer <mgreer@mvista.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Merge branch 'devel-stable' into for-linus 2011-05-23T18:28:04+00:00 Russell King rmk+kernel@arm.linux.org.uk 2011-05-23T18:28:04+00:00 9a55d9752d8abfc62f1ab05ccc790d22a0c8e7c0 Conflicts: arch/arm/Kconfig arch/arm/mach-ns9xxx/include/mach/uncompress.h 
Conflicts:
	arch/arm/Kconfig
	arch/arm/mach-ns9xxx/include/mach/uncompress.h
Merge branches 'consolidate', 'ep93xx', 'fixes', 'misc', 'mmci', 'remove' and 'spear' into for-linus 2011-05-23T18:27:40+00:00 Russell King rmk+kernel@arm.linux.org.uk 2011-05-23T18:27:40+00:00 ec19628d72cff8f80220b7cedba089074ac6a599 






ARM: 6859/1: Add writethrough dcache support for ARM926EJS processor
2011-05-12T09:07:00+00:00

Mark A. Greer
mgreer@mvista.com

2011-04-01T14:41:26+00:00

af3e4fd37a18f2e5a00175bc96061541d1364a3b

The ARM kernel supports writethrough data cache via the
CONFIG_CPU_DCACHE_WRITETHROUGH option.  However, that
functionality wasn't implemented in the arch/arm/boot/compressed
code.  It is now necessary due to a new ARM926EJS processor
that has an issue with writeback data cache.

Signed-off-by: Mark A. Greer <mgreer@mvista.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>





The ARM kernel supports writethrough data cache via the
CONFIG_CPU_DCACHE_WRITETHROUGH option.  However, that
functionality wasn't implemented in the arch/arm/boot/compressed
code.  It is now necessary due to a new ARM926EJS processor
that has an issue with writeback data cache.

Signed-off-by: Mark A. Greer <mgreer@mvista.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>







Merge first four commits of 'zImage_fixes' of git://git.linaro.org/people/nico/linux into fixes
2011-05-07T07:34:40+00:00

Russell King
rmk+kernel@arm.linux.org.uk

2011-05-07T07:34:36+00:00

362607df9faa01fea6ae437b1a50645f33f393c0












Merge branch 'zImage_fixes' of git://git.linaro.org/people/nico/linux into devel-stable
2011-05-07T07:34:02+00:00

Russell King
rmk+kernel@arm.linux.org.uk

2011-05-07T07:34:02+00:00

7b76415375ba91f5a06f8d5179278c03d6151d16












ARM: zImage: make sure no GOTOFF relocs are used with .bss symbols
2011-05-07T04:08:03+00:00

Nicolas Pitre
nicolas.pitre@linaro.org

2011-04-27T18:54:39+00:00

8d7e4cc2c8ea1d180d32d902eb899f27d3ee53d7

To be able to relocate the .bss section at run time independently from
the rest of the code, we must make sure that no GOTOFF relocations are
used with .bss symbols.  This usually means that no global variables can
be marked static unless they're also const.

To enforce this, suffice to fail the build whenever a private symbol
is allocated to .bss and list those symbols for convenience.

The user_stack and user_stack_end labels in head.S were converted into
non exported symbols to remove false positives.

Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Tested-by: Tony Lindgren <tony@atomide.com>





To be able to relocate the .bss section at run time independently from
the rest of the code, we must make sure that no GOTOFF relocations are
used with .bss symbols.  This usually means that no global variables can
be marked static unless they're also const.

To enforce this, suffice to fail the build whenever a private symbol
is allocated to .bss and list those symbols for convenience.

The user_stack and user_stack_end labels in head.S were converted into
non exported symbols to remove false positives.

Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Tested-by: Tony Lindgren <tony@atomide.com>







ARM: zImage: don't ignore error returned from decompress()
2011-05-07T04:08:01+00:00

Nicolas Pitre
nicolas.pitre@linaro.org

2011-04-22T01:59:49+00:00

ccc1c7c6c25661f0071a7ebe997abcbf529df3e9

If decompress() returns an error without calling error(), we must
not attempt to boot the resulting kernel.

Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Tested-by: Shawn Guo <shawn.guo@linaro.org>
Tested-by: Tony Lindgren <tony@atomide.com>





If decompress() returns an error without calling error(), we must
not attempt to boot the resulting kernel.

Signed-off-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Tested-by: Shawn Guo <shawn.guo@linaro.org>
Tested-by: Tony Lindgren <tony@atomide.com>