ARM: gic: allow GIC to support non-banked setups

The GIC support code is heavily using the fact that hardware
implementations are exposing banked registers. Unfortunately, it
looks like at least one

ARM: gic: allow GIC to support non-banked setups

The GIC support code is heavily using the fact that hardware
implementations are exposing banked registers. Unfortunately, it
looks like at least one GIC implementation (EXYNOS) offers both
the distributor and the CPU interfaces at different addresses,
depending on the CPU.

This problem is solved by allowing the distributor and CPU interface
addresses to be per-cpu variables for the platforms that require it.
The EXYNOS code is updated not to mess with the GIC internals while
handling interrupts, and struct gic_chip_data is back to being private.
The DT binding for the gic is updated to allow an optional "cpu-offset"
value, which is used to compute the various base addresses.

Finally, a new config option (GIC_NON_BANKED) is used to control this
feature, so the overhead is only present on kernels compiled with
support for EXYNOS.

Tested on Origen (EXYNOS4) and Panda (OMAP4).

Cc: Kukjin Kim <kgene.kim@samsung.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Thomas Abraham <thomas.abraham@linaro.org>
Acked-by: Rob Herring <rob.herring@calxeda.com>
Signed-off-by: Marc Zyngier <marc.zyngier@arm.com>

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Merge branch 'master' into for-next

Sync with Linus tree to have 157550ff ("mtd: add GPMI-NAND driver
in the config and Makefile") as I have patch depending on that one.

Merge branches 'sh/pm-runtime' and 'common/clkfwk' into sh-fixes-for-linus

Merge branch 'for-3.2' into for-3.3

Merge branch 'fixes-modulesplit' into fixes

Merge branch 'fixes' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm

* 'fixes' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm:
ARM: PXA: fix in

Merge branch 'fixes' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm

* 'fixes' of http://ftp.arm.linux.org.uk/pub/linux/arm/kernel/git-cur/linux-2.6-arm:
ARM: PXA: fix includes in pxa2xx_cm_x2xx PCMCIA driver
ARM: PXA: fix gpio-pxa.h build errors
ARM: 7142/1: davinci: mark GPIO implementation complex
ARM: 7134/1: Revert "EXYNOS4: Fix routing timer interrupt to offline CPU"
ARM: PXA: eseries: fix eseries_register_clks section mismatch warning
ARM: PXA: fix lubbock PCMCIA driver build error

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Merge branch 'next/move' of git://git.linaro.org/people/arnd/arm-soc

* 'next/move' of git://git.linaro.org/people/arnd/arm-soc:
ARM: EXYNOS: Add ARCH_EXYNOS and reorganize arch/arm/mach-exynos
A

Merge branch 'next/move' of git://git.linaro.org/people/arnd/arm-soc

* 'next/move' of git://git.linaro.org/people/arnd/arm-soc:
ARM: EXYNOS: Add ARCH_EXYNOS and reorganize arch/arm/mach-exynos
ARM: EXYNOS4: convert MCT to percpu interrupt API
ARM: SAMSUNG: Add clk enable/disable of pwm
ARM: SAMSUNG: Fix compile error due to kfree

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ARM: EXYNOS: Add ARCH_EXYNOS and reorganize arch/arm/mach-exynos

The arch/arm/mach-exynos4 directory (CONFIG_ARCH_EXYNOS4) has
made for plaforms based on EXYNOS4 SoCs. But since upcoming
Samsung's S

ARM: EXYNOS: Add ARCH_EXYNOS and reorganize arch/arm/mach-exynos

The arch/arm/mach-exynos4 directory (CONFIG_ARCH_EXYNOS4) has
made for plaforms based on EXYNOS4 SoCs. But since upcoming
Samsung's SoCs such as EXYNOS5 (ARM Cortex A15) can reuse most
codes in current mach-exynos4, one mach-exynos directory will
be used for them.

This patch changes to CONFIG_ARCH_EXYNOS (arch/arm/mach-exynos)
but keeps original CONFIG_ARCH_EXYNOS4 in mach-exynos/Kconfig to
avoid changing in driver side.

Cc: Arnd Bergmann <arnd@arndb.de>
Cc: Russell King <rmk+kernel@arm.linux.org.uk>
Signed-off-by: Kukjin Kim <kgene.kim@samsung.com>

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