From: Santosh Shilimkar <santosh.shilimkar@ti.com>
Date: Thu, 1 Aug 2013 02:12:01 +0000 (+0100)
Subject: ARM: 7805/1: mm: change max*pfn to include the physical offset of memory
X-Git-Tag: v3.13-rc1~104^2
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=26ba47b18318abe7dadbe9294a611c0e932651d8;p=pandora-kernel.git

ARM: 7805/1: mm: change max*pfn to include the physical offset of memory

Most of the kernel code assumes that max*pfn is maximum pfns because
the physical start of memory is expected to be PFN0. Since this
assumption is not true on ARM architectures, the meaning of max*pfn
is number of memory pages. This is done to keep drivers happy which
are making use of of these variable to calculate the dma bounce limit
using dma_mask.

Now since we have a architecture override possibility for DMAable
maximum pfns, lets make meaning of max*pfns as maximum pnfs on ARM
as well.

Cc: Catalin Marinas <catalin.marinas@arm.com>
Cc: Will Deacon <will.deacon@arm.com>
Cc: Nicolas Pitre <nicolas.pitre@linaro.org>
Signed-off-by: Santosh Shilimkar <santosh.shilimkar@ti.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
---

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