CONFIG_ARM_PATCH_PHYS_VIRT is not available for thedefaultarchitecture x86.
Result is shown for architecture arm

Patch physical to virtual translations at runtime (EXPERIMENTAL)

configname: CONFIG_ARM_PATCH_PHYS_VIRT

Linux Kernel Configuration
└─>Patch physical to virtual translations at runtime (EXPERIMENTAL)
In linux kernel since version 2.6.39 (release Date: 2011-05-18)  
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 MMU kernels where the base
of physical memory is at a 16MB boundary, or theoretically 64K
for the MSM machine class.

depends
CONFIG_EXPERIMENTAL
CONFIG_MMU
NOT CONFIG_XIP_KERNEL
NOT CONFIG_ARCH_REALVIEW or  NOT CONFIG_SPARSEMEM

is selected by
CONFIG_ARCH_DAVINCI_DA850

is depended by
CONFIG_ARCH_AT91