From: Linus Torvalds <torvalds@linux-foundation.org>
Date: Wed, 10 Jul 2013 21:46:40 +0000 (-0700)
Subject: Merge tag 'iommu-updates-v3.11' of git://git.kernel.org/pub/scm/linux/kernel/git... 
X-Git-Tag: accepted/tizen/common/20141203.182822~1884
X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=6664565681a1c0c95607ae2e30070352d9a563d0;p=platform%2Fkernel%2Flinux-arm64.git

Merge tag 'iommu-updates-v3.11' of git://git./linux/kernel/git/joro/iommu

Pull IOMMU updates from Joerg Roedel:
 "A few updates this time, most important and exiciting (to me) is:

   - The new ARM SMMU driver.  This is a common IOMMU driver that will
     hopefully be used in a lot of upcoming ARM chips.  So the mess in
     the past where every SOC had its own IOMMU will be over.

  Besides that:

   - Some important fixes in the IOMMU unmap path.  There are fixes in
     the common code and also in the AMD IOMMU driver.
   - Other random fixes"

* tag 'iommu-updates-v3.11' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
  MAINTAINERS: add entry for ARM system MMU driver
  iommu/arm: Add support for ARM Ltd. System MMU architecture
  documentation/iommu: Add description of ARM System MMU binding
  iommu: Use %pa and %zx instead of casting
  iommu/amd: Only unmap large pages from the first pte
  iommu: Fix compiler warning on pr_debug
  iommu/amd: Fix memory leak in free_pagetable
  iommu: Split iommu_unmaps
  iommu/{vt-d,amd}: Remove multifunction assumption around grouping
  iommu/omap: fix checkpatch warnings in omap iommu code
  iommu/omap: fix printk formats for dma_addr_t
  iommu/vt-d: DMAR reporting table needs at least one DRHD
  iommu/vt-d: Downgrade the warning if enabling irq remapping fails
---

6664565681a1c0c95607ae2e30070352d9a563d0
diff --cc MAINTAINERS
index 37f9a71,1eb2a72..af4c3be
--- a/MAINTAINERS
+++ b/MAINTAINERS
@@@ -1331,8 -1309,13 +1331,14 @@@ W:	http://wiki.xilinx.co
  T:	git git://git.xilinx.com/linux-xlnx.git
  S:	Supported
  F:	arch/arm/mach-zynq/
 +F:	drivers/cpuidle/cpuidle-zynq.c
  
+ ARM SMMU DRIVER
+ M:	Will Deacon <will.deacon@arm.com>
+ L:	linux-arm-kernel@lists.infradead.org (moderated for non-subscribers)
+ S:	Maintained
+ F:	drivers/iommu/arm-smmu.c
+ 
  ARM64 PORT (AARCH64 ARCHITECTURE)
  M:	Catalin Marinas <catalin.marinas@arm.com>
  M:	Will Deacon <will.deacon@arm.com>
diff --cc drivers/iommu/Kconfig
index 01730b2,957cfd4..820d85c
--- a/drivers/iommu/Kconfig
+++ b/drivers/iommu/Kconfig
@@@ -261,12 -261,17 +261,25 @@@ config SHMOBILE_IOMMU_L1SIZ
  	default 256 if SHMOBILE_IOMMU_ADDRSIZE_64MB
  	default 128 if SHMOBILE_IOMMU_ADDRSIZE_32MB
  
 +config SPAPR_TCE_IOMMU
 +	bool "sPAPR TCE IOMMU Support"
 +	depends on PPC_POWERNV || PPC_PSERIES
 +	select IOMMU_API
 +	help
 +	  Enables bits of IOMMU API required by VFIO. The iommu_ops
 +	  is not implemented as it is not necessary for VFIO.
 +
+ config ARM_SMMU
+ 	bool "ARM Ltd. System MMU (SMMU) Support"
+ 	depends on ARM64 || (ARM_LPAE && OF)
+ 	select IOMMU_API
+ 	select ARM_DMA_USE_IOMMU if ARM
+ 	help
+ 	  Support for implementations of the ARM System MMU architecture
+ 	  versions 1 and 2. The driver supports both v7l and v8l table
+ 	  formats with 4k and 64k page sizes.
+ 
+ 	  Say Y here if your SoC includes an IOMMU device implementing
+ 	  the ARM SMMU architecture.
+ 
  endif # IOMMU_SUPPORT