ARM: Add support for 64 bit register reads/writes

Add macros to read and write to 64 bit registers.

Signed-off-by: Olav Haugan <ohaugan@codeaurora.org>

Conflicts:
	arch/arm/include/asm/io.h

Change-Id: Ied2b38e6a3803377cd271fe7b13f6cf0fc586e70
msm: scm: Add scm_call_atomic3

Some drivers need to pass three arguments atomically. Add support
for it.

Change-Id: I0077d26eeab0e6a3828f994fd4aabc4d73d48b31
Signed-off-by: Stephen Boyd <sboyd@codeaurora.org>
driver core: Add iommu_group tracking to struct device

IOMMU groups allow IOMMU drivers to represent DMA visibility
and isolation of devices.  Multiple devices may be grouped
together for the purposes of DMA.  Placing a pointer on
struct device enable easy access for things like streaming
DMA programming and drivers like VFIO.

Change-Id: I0a92a94aea0ac699676914a033477243a70dd0b0
Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
Acked-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Acked-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Olav Haugan <ohaugan@codeaurora.org>
msm: Fix mem leak when using per-process pages

When GPU is using per process page tables the code creates
a new page table (domain) for every process. There is also
some associated structures allocated to keep track of each
domain. However, when cleaning up the memory used for a page
table only the domain is freed and not the associated structures.

Add a function to allow a client to properly unregister a domain
which will free all the memory associated with a domain.
Call the unregister function from kgsl driver code.

CRs-fixed: 480801
Signed-off-by: Olav Haugan <ohaugan@codeaurora.org>
Signed-off-by: Willi Ye <williye97@gmail.com>

Conflicts:
	arch/arm/mach-msm/iommu_domains.c

Change-Id: I78365cac8afb900450b512527f0cb71da5e9ddb2

Conflicts:
	arch/arm/mach-msm/iommu_domains.c
fix derps

Change-Id: I327cecbd3159621b7655f51033f14f87589c03ed