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ARM: enable ARM_PATCH_PHYS_VIRT by default

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Enable virtual to physical translation patching by default in all
kernels.  Hide the option behind EMBEDDED.

This can still be turned off if people desire, and they know what
they're doing, to shrink the size of the kernel to a minimum.

Acked-by: Will Deacon <will.deacon@arm.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
This commit is contained in:
Russell King 2011-08-10 10:23:45 +01:00
parent 4eb979d4d1
commit c1becedc88
1 changed files with 6 additions and 2 deletions
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8
arch/arm/Kconfig
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@ -195,7 +195,8 @@ config VECTORS_BASE
The base address of exception vectors.
config ARM_PATCH_PHYS_VIRT
bool "Patch physical to virtual translations at runtime"
bool "Patch physical to virtual translations at runtime" if EMBEDDED
default y
depends on !XIP_KERNEL && MMU
depends on !ARCH_REALVIEW || !SPARSEMEM
help
@ -207,6 +208,10 @@ config ARM_PATCH_PHYS_VIRT
of physical memory is at a 16MB boundary, or theoretically 64K
for the MSM machine class.
Only disable this option if you know that you do not require
this feature (eg, building a kernel for a single machine) and
you need to shrink the kernel to the minimal size.
config ARM_PATCH_PHYS_VIRT_16BIT
def_bool y
depends on ARM_PATCH_PHYS_VIRT && ARCH_MSM
@ -301,7 +306,6 @@ config ARCH_AT91
select ARCH_REQUIRE_GPIOLIB
select HAVE_CLK
select CLKDEV_LOOKUP
select ARM_PATCH_PHYS_VIRT if MMU
help
This enables support for systems based on the Atmel AT91RM9200,
AT91SAM9 and AT91CAP9 processors.