litmus-rt.git/arch/arm/Kconfig, branch wip-edzl-critique The LITMUS^RT kernel. ARM: Include LITMUS^RT KConfig 2010-11-11T22:57:38+00:00 Bjoern B. Brandenburg bbb@cs.unc.edu 2010-05-30T22:52:30+00:00 9907691855fa49ec8ed317fc54a626fcd137c73b Make the ARM built aware of the LITMUS^RT-specific options. 
Make the ARM built aware of the LITMUS^RT-specific options.
ARM: 6416/1: errata: faulty hazard checking in the Store Buffer may lead to data corruption 2010-10-04T18:20:14+00:00 Will Deacon will.deacon@arm.com 2010-09-28T13:02:02+00:00 475d92fc6e72cd123dc5dbb9e70cdb80b0cfdf2d On the r2p0, r2p1 and r2p2 versions of the Cortex-A9, data corruption can occur under very rare conditions due to a store buffer optimisation. This workaround sets a bit in the diagnostic register of the Cortex-A9, disabling the optimisation and preventing the problem from occurring. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
On the r2p0, r2p1 and r2p2 versions of the Cortex-A9, data corruption
can occur under very rare conditions due to a store buffer optimisation.

This workaround sets a bit in the diagnostic register of the Cortex-A9,
disabling the optimisation and preventing the problem from occurring.

Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
ARM: 6400/1: at91: fix arch_gettimeoffset fallout 2010-09-19T11:16:27+00:00 Peter Korsgaard jacmet@sunsite.dk 2010-09-18T18:55:10+00:00 79e27dc0677b969e2d53b76fa0fa58467cce946a 5cfc8ee0bb51 (ARM: convert arm to arch_gettimeoffset()) marked all of at91 AND at91x40 as needing ARCH_USES_GETTIMEOFFSET, and hence no high res timer support / accurate clock_gettime() - But only at91x40 needs it. Cc: stable@kernel.org Signed-off-by: Peter Korsgaard <peter.korsgaard@barco.com> Acked-by: John Stultz <johnstul@us.ibm.com> Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
5cfc8ee0bb51 (ARM: convert arm to arch_gettimeoffset()) marked all of
at91 AND at91x40 as needing ARCH_USES_GETTIMEOFFSET, and hence no high
res timer support / accurate clock_gettime() - But only at91x40 needs it.

Cc: stable@kernel.org
Signed-off-by: Peter Korsgaard <peter.korsgaard@barco.com>
Acked-by: John Stultz <johnstul@us.ibm.com>
Acked-by: Jean-Christophe PLAGNIOL-VILLARD <plagnioj@jcrosoft.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
ARM: 6389/1: errata: incorrect hazard handling in the SCU may lead to data corruption 2010-09-17T09:16:52+00:00 Will Deacon will.deacon@arm.com 2010-09-14T08:53:02+00:00 a672e99b129e286df2e2697a1b603d82321117f3 On the r2p0, r2p1 and r2p2 versions of the Cortex-A9, data corruption can occur if a shared cache line is replaced on one CPU as another CPU is accessing it. This workaround sets two bits in the diagnostic register of the Cortex-A9, reducing the linefill issuing capabilities of the processor and avoiding the erroneous behaviour. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
On the r2p0, r2p1 and r2p2 versions of the Cortex-A9, data corruption
can occur if a shared cache line is replaced on one CPU as another CPU
is accessing it.

This workaround sets two bits in the diagnostic register of the Cortex-A9,
reducing the linefill issuing capabilities of the processor and
avoiding the erroneous behaviour.

Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
ARM: 6388/1: errata: DMB operation may be faulty 2010-09-17T09:16:51+00:00 Will Deacon will.deacon@arm.com 2010-09-14T08:51:43+00:00 9f05027c7cb3cfe56a31892bd83391138d41a667 On versions of the Cortex-A9 up to and including r2p2, under rare circumstances, a DMB instruction between 2 write operations may not ensure the correct visibility ordering of the 2 writes. This workaround sets a bit in the diagnostic register of the Cortex-A9, causing the DMB instruction to behave like a DSB, which functions correctly on the affected cores. Acked-by: Catalin Marinas <catalin.marinas@arm.com> Signed-off-by: Will Deacon <will.deacon@arm.com> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
On versions of the Cortex-A9 up to and including r2p2, under rare
circumstances, a DMB instruction between 2 write operations may not
ensure the correct visibility ordering of the 2 writes.

This workaround sets a bit in the diagnostic register of the Cortex-A9,
causing the DMB instruction to behave like a DSB, which functions
correctly on the affected cores.

Acked-by: Catalin Marinas <catalin.marinas@arm.com>
Signed-off-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
ARM: Partially revert "Auto calculate ZRELADDR and provide option for exceptions" 2010-09-09T21:39:41+00:00 Russell King rmk+kernel@arm.linux.org.uk 2010-09-09T21:39:41+00:00 9e84ed63dc71e13b62cea5ec6b0049260cca0b7a Partially revert e69edc7, which introduced automatic zreladdr support. The change in the way the manual definition is defined seems to be error and conflict prone. Go back to the original way we were handling this for the time being, while keeping the automatic zreladdr facility. Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
Partially revert e69edc7, which introduced automatic zreladdr
support.  The change in the way the manual definition is defined
seems to be error and conflict prone.  Go back to the original way
we were handling this for the time being, while keeping the automatic
zreladdr facility.

Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
[ARM] tegra: Add ZRELADDR default for ARCH_TEGRA 2010-09-01T21:58:53+00:00 Erik Gilling konkers@android.com 2010-08-27T19:57:39+00:00 a9d8fb4d09ec8823045f44ebcde53a563fce2feb fixes the warning: .config:369:warning: symbol value '' invalid for ZRELADDR and the prompt for ZRELADDR on make Signed-off-by: Erik Gilling <konkers@android.com> 
fixes the warning:
.config:369:warning: symbol value '' invalid for ZRELADDR

and the prompt for ZRELADDR on make

Signed-off-by: Erik Gilling <konkers@android.com>
ARM: S5PV310: Fix on default ZRELADDR of ARCH_S5PV310 2010-08-27T06:29:11+00:00 Kukjin Kim kgene.kim@samsung.com 2010-08-18T12:03:24+00:00 68c1dbcb5aeb00eb17caf0c2e42c71b48baac902 This patch adds default zreladdr of ARCH_S5PV310. Signed-off-by: Kukjin Kim <kgene.kim@samsung.com> 
This patch adds default zreladdr of ARCH_S5PV310.

Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>
Merge branches 'master' and 'devel' into for-linus 2010-08-10T22:17:52+00:00 Russell King rmk+kernel@arm.linux.org.uk 2010-08-10T22:17:52+00:00 0b019a41553a919965bb02d07d54e3e6c57a796d Conflicts: arch/arm/Kconfig arch/arm/mm/Kconfig 
Conflicts:
	arch/arm/Kconfig
	arch/arm/mm/Kconfig
ARM: 6321/1: fix syntax error in main Kconfig file 2010-08-10T21:11:10+00:00 Uwe Kleine-König u.kleine-koenig@pengutronix.de 2010-08-10T20:14:12+00:00 ce45947b5687918dc6ce8e31938fbfd4059bf89e This fixes: scripts/kconfig/mconf arch/arm/Kconfig arch/arm/Kconfig:1187: invalid option make[1]: *** [menuconfig] Error 1 make: *** [menuconfig] Error 2 which was introduced by 1cea732 ([ARM] tegra: SMP support) Cc: Tanmay Upadhyay <tanmay.upadhyay@einfochips.com> Cc: xsecute@googlemail.com Cc: Eric Miao <eric.y.miao@gmail.com> Cc: Colin Cross <ccross@android.com> Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk> 
This fixes:

	scripts/kconfig/mconf arch/arm/Kconfig
	arch/arm/Kconfig:1187: invalid option
	make[1]: *** [menuconfig] Error 1
	make: *** [menuconfig] Error 2

which was introduced by

	1cea732 ([ARM] tegra: SMP support)

Cc: Tanmay Upadhyay <tanmay.upadhyay@einfochips.com>
Cc: xsecute@googlemail.com
Cc: Eric Miao <eric.y.miao@gmail.com>
Cc: Colin Cross <ccross@android.com>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>