[PATCH] ARM: provide improved virt_to_idmap() functionality

[santosh shilimkar]

On 4/14/2016 12:42 PM, Russell King wrote:
> For kexec, we need more functionality from the IDMAP system.  We need to
> be able to convert physical addresses to their identity mappped versions
> as well as virtual addresses.
>
> Convert the existing arch_virt_to_idmap() to deal with physical
> addresses instead.
>
> Signed-off-by: Russell King <rmk+kernel at arm.linux.org.uk>
> ---
> Obviously, this is for Keystone 2 Kexec with its weird physical memory
> layout.
>
Nice !!
Acked-by: Santosh Shilimkar <ssantosh at kernel.org>