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| author | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-01-04 20:39:29 +0100 |
|---|---|---|
| committer | Russell King <rmk+kernel@arm.linux.org.uk> | 2011-02-18 00:27:33 +0100 |
| commit | cada3c0841e1deaec4c0f92654610b028dc683ff (patch) | |
| tree | 9c6085c8b8447795ddc749315a31fd3906a6159d /arch/arm/Kconfig | |
| parent | ARM: P2V: introduce phys_to_virt/virt_to_phys runtime patching (diff) | |
| download | linux-cada3c0841e1deaec4c0f92654610b028dc683ff.tar.xz linux-cada3c0841e1deaec4c0f92654610b028dc683ff.zip | |
ARM: P2V: extend to 16-bit translation offsets
MSM's memory is aligned to 2MB, which is more than we can do with our
existing method as we're limited to the upper 8 bits. Extend this by
using two instructions to 16 bits, automatically selected when MSM is
enabled.
Acked-by: Tony Lindgren <tony@atomide.com>
Reviewed-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Tested-by: Nicolas Pitre <nicolas.pitre@linaro.org>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
Diffstat (limited to 'arch/arm/Kconfig')
| -rw-r--r-- | arch/arm/Kconfig | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/arch/arm/Kconfig b/arch/arm/Kconfig index 4147f76e7988..b357c29e7dfc 100644 --- a/arch/arm/Kconfig +++ b/arch/arm/Kconfig @@ -195,7 +195,6 @@ config ARM_PATCH_PHYS_VIRT bool "Patch physical to virtual translations at runtime (EXPERIMENTAL)" depends on EXPERIMENTAL depends on !XIP_KERNEL && !THUMB2_KERNEL && MMU - depends on !ARCH_MSM depends on !ARCH_REALVIEW || !SPARSEMEM help Patch phys-to-virt translation functions at runtime according to @@ -204,6 +203,10 @@ config ARM_PATCH_PHYS_VIRT This can only be used with non-XIP, non-Thumb2, MMU kernels where the base of physical memory is at a 16MB boundary. +config ARM_PATCH_PHYS_VIRT_16BIT + def_bool y + depends on ARM_PATCH_PHYS_VIRT && ARCH_MSM + source "init/Kconfig" source "kernel/Kconfig.freezer" |