Commit 111e9a5c authored by Russell King's avatar Russell King

ARM: phys-to-virt: improve Kconfig help texts

Improve the Kconfig help texts for the phys-to-virt patching feature.
Signed-off-by: default avatarRussell King <rmk+kernel@arm.linux.org.uk>
parent e8db89a2
......@@ -197,15 +197,21 @@ config ARM_PATCH_PHYS_VIRT
depends on !XIP_KERNEL && MMU
depends on !ARCH_REALVIEW || !SPARSEMEM
help
Patch phys-to-virt translation functions at runtime according to
the position of the kernel in system memory.
Patch phys-to-virt and virt-to-phys translation functions at
boot and module load time according to the position of the
kernel in system memory.
This can only be used with non-XIP with MMU kernels where
the base of physical memory is at a 16MB boundary.
This can only be used with non-XIP MMU kernels where the base
of physical memory is at a 16MB boundary, or theoretically 64K
for the MSM machine class.
config ARM_PATCH_PHYS_VIRT_16BIT
def_bool y
depends on ARM_PATCH_PHYS_VIRT && ARCH_MSM
help
This option extends the physical to virtual translation patching
to allow physical memory down to a theoretical minimum of 64K
boundaries.
source "init/Kconfig"
......
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