Merge tag 'iommu-updates-v3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull IOMMU Updates from Joerg Roedel:
 "Besides some fixes and cleanups in the code there are three more
  important changes to point out this time:

	* New IOMMU driver for the ARM SHMOBILE platform
	* An IOMMU-API extension for non-paging IOMMUs (required for
	  upcoming PAMU driver)
	* Rework of the way the Tegra IOMMU driver accesses its
	  registetrs - register windows are easier to extend now.

  There are also a few changes to non-iommu code, but that is acked by
  the respective maintainers."

* tag 'iommu-updates-v3.9' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu: (23 commits)
  iommu/tegra: assume CONFIG_OF in SMMU driver
  iommu/tegra: assume CONFIG_OF in gart driver
  iommu/amd: Remove redundant NULL check before dma_ops_domain_free().
  iommu/amd: Initialize device table after dma_ops
  iommu/vt-d: Zero out allocated memory in dmar_enable_qi
  iommu/tegra: smmu: Fix incorrect mask for regbase
  iommu/exynos: Make exynos_sysmmu_disable static
  ARM: mach-shmobile: r8a7740: Add IPMMU device
  ARM: mach-shmobile: sh73a0: Add IPMMU device
  ARM: mach-shmobile: sh7372: Add IPMMU device
  iommu/shmobile: Add iommu driver for Renesas IPMMU modules
  iommu: Add DOMAIN_ATTR_WINDOWS domain attribute
  iommu: Add domain window handling functions
  iommu: Implement DOMAIN_ATTR_PAGING attribute
  iommu: Check for valid pgsize_bitmap in iommu_map/unmap
  iommu: Make sure DOMAIN_ATTR_MAX is really the maximum
  iommu/tegra: smmu: Change SMMU's dependency on ARCH_TEGRA
  iommu/tegra: smmu: Use helper function to check for valid register offset
  iommu/tegra: smmu: Support variable MMIO ranges/blocks
  iommu/tegra: Add missing spinlock initialization
  ...

3 files changed, 103 insertions, 0 deletions

diff --git a/arch/arm/mach-shmobile/setup-r8a7740.c b/arch/arm/mach-shmobile/setup-r8a7740.c
index 30ac79c7c687..8b85d4d8fab6 100644
--- a/arch/arm/mach-shmobile/setup-r8a7740.c
+++ b/arch/arm/mach-shmobile/setup-r8a7740.c
@@ -27,6 +27,7 @@
 #include <linux/serial_sci.h>
 #include <linux/sh_dma.h>
 #include <linux/sh_timer.h>
+#include <linux/platform_data/sh_ipmmu.h>
 #include <mach/dma-register.h>
 #include <mach/r8a7740.h>
 #include <mach/pm-rmobile.h>
@@ -378,6 +379,37 @@ static struct platform_device tmu02_device = {
         .num_resources  = ARRAY_SIZE(tmu02_resources),
 };
 
+/* IPMMUI (an IPMMU module for ICB/LMB) */
+static struct resource ipmmu_resources[] = {
+        [0] = {
+                .name   = "IPMMUI",
+                .start  = 0xfe951000,
+                .end    = 0xfe9510ff,
+                .flags  = IORESOURCE_MEM,
+        },
+};
+
+static const char * const ipmmu_dev_names[] = {
+        "sh_mobile_lcdc_fb.0",
+        "sh_mobile_lcdc_fb.1",
+        "sh_mobile_ceu.0",
+};
+
+static struct shmobile_ipmmu_platform_data ipmmu_platform_data = {
+        .dev_names = ipmmu_dev_names,
+        .num_dev_names = ARRAY_SIZE(ipmmu_dev_names),
+};
+
+static struct platform_device ipmmu_device = {
+        .name           = "ipmmu",
+        .id             = -1,
+        .dev = {
+                .platform_data = &ipmmu_platform_data,
+        },
+        .resource       = ipmmu_resources,
+        .num_resources  = ARRAY_SIZE(ipmmu_resources),
+};
+
 static struct platform_device *r8a7740_early_devices[] __initdata = {
         &scif0_device,
         &scif1_device,
@@ -392,6 +424,7 @@ static struct platform_device *r8a7740_early_devices[] __initdata = {
         &tmu00_device,
         &tmu01_device,
         &tmu02_device,
+        &ipmmu_device,
 };
 
 /* DMA */
diff --git a/arch/arm/mach-shmobile/setup-sh7372.c b/arch/arm/mach-shmobile/setup-sh7372.c
index d2079d5e3334..59c7146bf66f 100644
--- a/arch/arm/mach-shmobile/setup-sh7372.c
+++ b/arch/arm/mach-shmobile/setup-sh7372.c
@@ -33,6 +33,7 @@
 #include <linux/sh_timer.h>
 #include <linux/pm_domain.h>
 #include <linux/dma-mapping.h>
+#include <linux/platform_data/sh_ipmmu.h>
 #include <mach/dma-register.h>
 #include <mach/hardware.h>
 #include <mach/irqs.h>
@@ -1008,6 +1009,43 @@ static struct platform_device spu1_device = {
         .num_resources  = ARRAY_SIZE(spu1_resources),
 };
 
+/* IPMMUI (an IPMMU module for ICB/LMB) */
+static struct resource ipmmu_resources[] = {
+        [0] = {
+                .name   = "IPMMUI",
+                .start  = 0xfe951000,
+                .end    = 0xfe9510ff,
+                .flags  = IORESOURCE_MEM,
+        },
+};
+
+static const char * const ipmmu_dev_names[] = {
+        "sh_mobile_lcdc_fb.0",
+        "sh_mobile_lcdc_fb.1",
+        "sh_mobile_ceu.0",
+        "uio_pdrv_genirq.0",
+        "uio_pdrv_genirq.1",
+        "uio_pdrv_genirq.2",
+        "uio_pdrv_genirq.3",
+        "uio_pdrv_genirq.4",
+        "uio_pdrv_genirq.5",
+};
+
+static struct shmobile_ipmmu_platform_data ipmmu_platform_data = {
+        .dev_names = ipmmu_dev_names,
+        .num_dev_names = ARRAY_SIZE(ipmmu_dev_names),
+};
+
+static struct platform_device ipmmu_device = {
+        .name           = "ipmmu",
+        .id             = -1,
+        .dev = {
+                .platform_data = &ipmmu_platform_data,
+        },
+        .resource       = ipmmu_resources,
+        .num_resources  = ARRAY_SIZE(ipmmu_resources),
+};
+
 static struct platform_device *sh7372_early_devices[] __initdata = {
         &scif0_device,
         &scif1_device,
@@ -1019,6 +1057,7 @@ static struct platform_device *sh7372_early_devices[] __initdata = {
         &cmt2_device,
         &tmu00_device,
         &tmu01_device,
+        &ipmmu_device,
 };
 
 static struct platform_device *sh7372_late_devices[] __initdata = {
diff --git a/arch/arm/mach-shmobile/setup-sh73a0.c b/arch/arm/mach-shmobile/setup-sh73a0.c
index 2ecd6681692f..bdab575f88bc 100644
--- a/arch/arm/mach-shmobile/setup-sh73a0.c
+++ b/arch/arm/mach-shmobile/setup-sh73a0.c
@@ -31,6 +31,7 @@
 #include <linux/sh_dma.h>
 #include <linux/sh_intc.h>
 #include <linux/sh_timer.h>
+#include <linux/platform_data/sh_ipmmu.h>
 #include <mach/dma-register.h>
 #include <mach/hardware.h>
 #include <mach/irqs.h>
@@ -780,6 +781,35 @@ static struct platform_device pmu_device = {
         .resource       = pmu_resources,
 };
 
+/* an IPMMU module for ICB */
+static struct resource ipmmu_resources[] = {
+        [0] = {
+                .name   = "IPMMU",
+                .start  = 0xfe951000,
+                .end    = 0xfe9510ff,
+                .flags  = IORESOURCE_MEM,
+        },
+};
+
+static const char * const ipmmu_dev_names[] = {
+        "sh_mobile_lcdc_fb.0",
+};
+
+static struct shmobile_ipmmu_platform_data ipmmu_platform_data = {
+        .dev_names = ipmmu_dev_names,
+        .num_dev_names = ARRAY_SIZE(ipmmu_dev_names),
+};
+
+static struct platform_device ipmmu_device = {
+        .name           = "ipmmu",
+        .id             = -1,
+        .dev = {
+                .platform_data = &ipmmu_platform_data,
+        },
+        .resource       = ipmmu_resources,
+        .num_resources  = ARRAY_SIZE(ipmmu_resources),
+};
+
 static struct platform_device *sh73a0_early_devices_dt[] __initdata = {
         &scif0_device,
         &scif1_device,
@@ -796,6 +826,7 @@ static struct platform_device *sh73a0_early_devices_dt[] __initdata = {
 static struct platform_device *sh73a0_early_devices[] __initdata = {
         &tmu00_device,
         &tmu01_device,
+        &ipmmu_device,
 };
 
 static struct platform_device *sh73a0_late_devices[] __initdata = {