Merge branches 'core', 'arm/omap', 'iommu/fixes', 'arm/tegra', 'arm/shmobile',...

Merge branches 'core', 'arm/omap', 'iommu/fixes', 'arm/tegra', 'arm/shmobile', 'arm/exynos', 'x86/vt-d' and 'x86/amd' into next

arch/arm/mach-exynos/Kconfig

@@ -105,11 +105,6 @@ config EXYNOS4_SETUP_FIMD0
 	help
 	  Common setup code for FIMD0.
 
-config EXYNOS_DEV_SYSMMU
-	bool
-	help
-	  Common setup code for SYSTEM MMU in EXYNOS platforms
-
 config EXYNOS4_DEV_USB_OHCI
 	bool
 	help

arch/arm/mach-exynos/Makefile

@@ -52,7 +52,6 @@ obj-$(CONFIG_ARCH_EXYNOS4)		+= dev-audio.o
 obj-$(CONFIG_EXYNOS4_DEV_AHCI)		+= dev-ahci.o
 obj-$(CONFIG_EXYNOS_DEV_DMA)		+= dma.o
 obj-$(CONFIG_EXYNOS4_DEV_USB_OHCI)	+= dev-ohci.o
-obj-$(CONFIG_EXYNOS_DEV_SYSMMU)		+= dev-sysmmu.o
 
 obj-$(CONFIG_ARCH_EXYNOS)		+= setup-i2c0.o
 obj-$(CONFIG_EXYNOS4_SETUP_FIMC)	+= setup-fimc.o

arch/arm/mach-exynos/clock-exynos4.c

@@ -24,7 +24,6 @@
 
 #include <mach/map.h>
 #include <mach/regs-clock.h>
-#include <mach/sysmmu.h>
 
 #include "common.h"
 #include "clock-exynos4.h"
@@ -709,53 +708,53 @@ static struct clk exynos4_init_clocks_off[] = {
 		.enable		= exynos4_clk_ip_peril_ctrl,
 		.ctrlbit	= (1 << 14),
 	}, {
-		.name		= SYSMMU_CLOCK_NAME,
-		.devname	= SYSMMU_CLOCK_DEVNAME(mfc_l, 0),
+		.name		= "sysmmu",
+		.devname	= "exynos-sysmmu.0",
 		.enable		= exynos4_clk_ip_mfc_ctrl,
 		.ctrlbit	= (1 << 1),
 	}, {
-		.name		= SYSMMU_CLOCK_NAME,
-		.devname	= SYSMMU_CLOCK_DEVNAME(mfc_r, 1),
+		.name		= "sysmmu",
+		.devname	= "exynos-sysmmu.1",
 		.enable		= exynos4_clk_ip_mfc_ctrl,
 		.ctrlbit	= (1 << 2),
 	}, {
-		.name		= SYSMMU_CLOCK_NAME,
-		.devname	= SYSMMU_CLOCK_DEVNAME(tv, 2),
+		.name		= "sysmmu",
+		.devname	= "exynos-sysmmu.2",
 		.enable		= exynos4_clk_ip_tv_ctrl,
 		.ctrlbit	= (1 << 4),
 	}, {
-		.name		= SYSMMU_CLOCK_NAME,
-		.devname	= SYSMMU_CLOCK_DEVNAME(jpeg, 3),
+		.name		= "sysmmu",
+		.devname	= "exynos-sysmmu.3",
 		.enable		= exynos4_clk_ip_cam_ctrl,
 		.ctrlbit	= (1 << 11),
 	}, {
-		.name		= SYSMMU_CLOCK_NAME,
-		.devname	= SYSMMU_CLOCK_DEVNAME(rot, 4),
+		.name		= "sysmmu",
+		.devname	= "exynos-sysmmu.4",
 		.enable		= exynos4_clk_ip_image_ctrl,
 		.ctrlbit	= (1 << 4),
 	}, {
-		.name		= SYSMMU_CLOCK_NAME,
-		.devname	= SYSMMU_CLOCK_DEVNAME(fimc0, 5),
+		.name		= "sysmmu",
+		.devname	= "exynos-sysmmu.5",
 		.enable		= exynos4_clk_ip_cam_ctrl,
 		.ctrlbit	= (1 << 7),
 	}, {
-		.name		= SYSMMU_CLOCK_NAME,
-		.devname	= SYSMMU_CLOCK_DEVNAME(fimc1, 6),
+		.name		= "sysmmu",
+		.devname	= "exynos-sysmmu.6",
 		.enable		= exynos4_clk_ip_cam_ctrl,
 		.ctrlbit	= (1 << 8),
 	}, {
-		.name		= SYSMMU_CLOCK_NAME,
-		.devname	= SYSMMU_CLOCK_DEVNAME(fimc2, 7),
+		.name		= "sysmmu",
+		.devname	= "exynos-sysmmu.7",
 		.enable		= exynos4_clk_ip_cam_ctrl,
 		.ctrlbit	= (1 << 9),
 	}, {
-		.name		= SYSMMU_CLOCK_NAME,
-		.devname	= SYSMMU_CLOCK_DEVNAME(fimc3, 8),
+		.name		= "sysmmu",
+		.devname	= "exynos-sysmmu.8",
 		.enable		= exynos4_clk_ip_cam_ctrl,
 		.ctrlbit	= (1 << 10),
 	}, {
-		.name		= SYSMMU_CLOCK_NAME,
-		.devname	= SYSMMU_CLOCK_DEVNAME(fimd0, 10),
+		.name		= "sysmmu",
+		.devname	= "exynos-sysmmu.10",
 		.enable		= exynos4_clk_ip_lcd0_ctrl,
 		.ctrlbit	= (1 << 4),
 	}

arch/arm/mach-exynos/clock-exynos4210.c

@@ -26,7 +26,6 @@
 #include <mach/hardware.h>
 #include <mach/map.h>
 #include <mach/regs-clock.h>
-#include <mach/sysmmu.h>
 
 #include "common.h"
 #include "clock-exynos4.h"
@@ -129,13 +128,13 @@ static struct clk init_clocks_off[] = {
 		.enable		= exynos4_clk_ip_lcd1_ctrl,
 		.ctrlbit	= (1 << 0),
 	}, {
-		.name		= SYSMMU_CLOCK_NAME,
-		.devname	= SYSMMU_CLOCK_DEVNAME(2d, 14),
+		.name		= "sysmmu",
+		.devname	= "exynos-sysmmu.9",
 		.enable		= exynos4_clk_ip_image_ctrl,
 		.ctrlbit	= (1 << 3),
 	}, {
-		.name		= SYSMMU_CLOCK_NAME,
-		.devname	= SYSMMU_CLOCK_DEVNAME(fimd1, 11),
+		.name		= "sysmmu",
+		.devname	= "exynos-sysmmu.11",
 		.enable		= exynos4_clk_ip_lcd1_ctrl,
 		.ctrlbit	= (1 << 4),
 	}, {

arch/arm/mach-exynos/clock-exynos4212.c

@@ -26,7 +26,6 @@
 #include <mach/hardware.h>
 #include <mach/map.h>
 #include <mach/regs-clock.h>
-#include <mach/sysmmu.h>
 
 #include "common.h"
 #include "clock-exynos4.h"
@@ -111,20 +110,30 @@ static struct clksrc_clk clksrcs[] = {
 
 static struct clk init_clocks_off[] = {
 	{
-		.name		= SYSMMU_CLOCK_NAME,
-		.devname	= SYSMMU_CLOCK_DEVNAME(2d, 14),
+		.name		= "sysmmu",
+		.devname	= "exynos-sysmmu.9",
 		.enable		= exynos4_clk_ip_dmc_ctrl,
 		.ctrlbit	= (1 << 24),
 	}, {
-		.name		= SYSMMU_CLOCK_NAME,
-		.devname	= SYSMMU_CLOCK_DEVNAME(isp, 9),
+		.name		= "sysmmu",
+		.devname	= "exynos-sysmmu.12",
 		.enable		= exynos4212_clk_ip_isp0_ctrl,
 		.ctrlbit	= (7 << 8),
 	}, {
-		.name		= SYSMMU_CLOCK_NAME2,
-		.devname	= SYSMMU_CLOCK_DEVNAME(isp, 9),
+		.name		= "sysmmu",
+		.devname	= "exynos-sysmmu.13",
 		.enable		= exynos4212_clk_ip_isp1_ctrl,
 		.ctrlbit	= (1 << 4),
+	}, {
+		.name		= "sysmmu",
+		.devname	= "exynos-sysmmu.14",
+		.enable		= exynos4212_clk_ip_isp0_ctrl,
+		.ctrlbit	= (1 << 11),
+	}, {
+		.name		= "sysmmu",
+		.devname	= "exynos-sysmmu.15",
+		.enable		= exynos4212_clk_ip_isp0_ctrl,
+		.ctrlbit	= (1 << 12),
 	}, {
 		.name		= "flite",
 		.devname	= "exynos-fimc-lite.0",

arch/arm/mach-exynos/clock-exynos5.c

@@ -24,7 +24,6 @@
 
 #include <mach/map.h>
 #include <mach/regs-clock.h>
-#include <mach/sysmmu.h>
 
 #include "common.h"
 
@@ -859,73 +858,78 @@ static struct clk exynos5_init_clocks_off[] = {
 		.enable		= exynos5_clk_ip_gscl_ctrl,
 		.ctrlbit	= (1 << 3),
 	}, {
-		.name		= SYSMMU_CLOCK_NAME,
-		.devname	= SYSMMU_CLOCK_DEVNAME(mfc_l, 0),
+		.name		= "sysmmu",
+		.devname	= "exynos-sysmmu.1",
 		.enable		= &exynos5_clk_ip_mfc_ctrl,
 		.ctrlbit	= (1 << 1),
 	}, {
-		.name		= SYSMMU_CLOCK_NAME,
-		.devname	= SYSMMU_CLOCK_DEVNAME(mfc_r, 1),
+		.name		= "sysmmu",
+		.devname	= "exynos-sysmmu.0",
 		.enable		= &exynos5_clk_ip_mfc_ctrl,
 		.ctrlbit	= (1 << 2),
 	}, {
-		.name		= SYSMMU_CLOCK_NAME,
-		.devname	= SYSMMU_CLOCK_DEVNAME(tv, 2),
+		.name		= "sysmmu",
+		.devname	= "exynos-sysmmu.2",
 		.enable		= &exynos5_clk_ip_disp1_ctrl,
 		.ctrlbit	= (1 << 9)
 	}, {
-		.name		= SYSMMU_CLOCK_NAME,
-		.devname	= SYSMMU_CLOCK_DEVNAME(jpeg, 3),
+		.name		= "sysmmu",
+		.devname	= "exynos-sysmmu.3",
 		.enable		= &exynos5_clk_ip_gen_ctrl,
 		.ctrlbit	= (1 << 7),
 	}, {
-		.name		= SYSMMU_CLOCK_NAME,
-		.devname	= SYSMMU_CLOCK_DEVNAME(rot, 4),
+		.name		= "sysmmu",
+		.devname	= "exynos-sysmmu.4",
 		.enable		= &exynos5_clk_ip_gen_ctrl,
 		.ctrlbit	= (1 << 6)
 	}, {
-		.name		= SYSMMU_CLOCK_NAME,
-		.devname	= SYSMMU_CLOCK_DEVNAME(gsc0, 5),
+		.name		= "sysmmu",
+		.devname	= "exynos-sysmmu.5",
 		.enable		= &exynos5_clk_ip_gscl_ctrl,
 		.ctrlbit	= (1 << 7),
 	}, {
-		.name		= SYSMMU_CLOCK_NAME,
-		.devname	= SYSMMU_CLOCK_DEVNAME(gsc1, 6),
+		.name		= "sysmmu",
+		.devname	= "exynos-sysmmu.6",
 		.enable		= &exynos5_clk_ip_gscl_ctrl,
 		.ctrlbit	= (1 << 8),
 	}, {
-		.name		= SYSMMU_CLOCK_NAME,
-		.devname	= SYSMMU_CLOCK_DEVNAME(gsc2, 7),
+		.name		= "sysmmu",
+		.devname	= "exynos-sysmmu.7",
 		.enable		= &exynos5_clk_ip_gscl_ctrl,
 		.ctrlbit	= (1 << 9),
 	}, {
-		.name		= SYSMMU_CLOCK_NAME,
-		.devname	= SYSMMU_CLOCK_DEVNAME(gsc3, 8),
+		.name		= "sysmmu",
+		.devname	= "exynos-sysmmu.8",
 		.enable		= &exynos5_clk_ip_gscl_ctrl,
 		.ctrlbit	= (1 << 10),
 	}, {
-		.name		= SYSMMU_CLOCK_NAME,
-		.devname	= SYSMMU_CLOCK_DEVNAME(isp, 9),
+		.name		= "sysmmu",
+		.devname	= "exynos-sysmmu.9",
 		.enable		= &exynos5_clk_ip_isp0_ctrl,
 		.ctrlbit	= (0x3F << 8),
 	}, {
-		.name		= SYSMMU_CLOCK_NAME2,
-		.devname	= SYSMMU_CLOCK_DEVNAME(isp, 9),
+		.name		= "sysmmu",
+		.devname	= "exynos-sysmmu.10",
 		.enable		= &exynos5_clk_ip_isp1_ctrl,
 		.ctrlbit	= (0xF << 4),
 	}, {
-		.name		= SYSMMU_CLOCK_NAME,
-		.devname	= SYSMMU_CLOCK_DEVNAME(camif0, 12),
+		.name		= "sysmmu",
+		.devname	= "exynos-sysmmu.11",
+		.enable		= &exynos5_clk_ip_disp1_ctrl,
+		.ctrlbit	= (1 << 8)
+	}, {
+		.name		= "sysmmu",
+		.devname	= "exynos-sysmmu.12",
 		.enable		= &exynos5_clk_ip_gscl_ctrl,
 		.ctrlbit	= (1 << 11),
 	}, {
-		.name		= SYSMMU_CLOCK_NAME,
-		.devname	= SYSMMU_CLOCK_DEVNAME(camif1, 13),
+		.name		= "sysmmu",
+		.devname	= "exynos-sysmmu.13",
 		.enable		= &exynos5_clk_ip_gscl_ctrl,
 		.ctrlbit	= (1 << 12),
 	}, {
-		.name		= SYSMMU_CLOCK_NAME,
-		.devname	= SYSMMU_CLOCK_DEVNAME(2d, 14),
+		.name		= "sysmmu",
+		.devname	= "exynos-sysmmu.14",
 		.enable		= &exynos5_clk_ip_acp_ctrl,
 		.ctrlbit	= (1 << 7)
 	}

arch/arm/mach-exynos/dev-sysmmu.c

-/* linux/arch/arm/mach-exynos/dev-sysmmu.c
- *
- * Copyright (c) 2010-2012 Samsung Electronics Co., Ltd.
- *		http://www.samsung.com
- *
- * EXYNOS - System MMU support
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#include <linux/platform_device.h>
-#include <linux/dma-mapping.h>
-
-#include <plat/cpu.h>
-
-#include <mach/map.h>
-#include <mach/irqs.h>
-#include <mach/sysmmu.h>
-
-static u64 exynos_sysmmu_dma_mask = DMA_BIT_MASK(32);
-
-#define SYSMMU_PLATFORM_DEVICE(ipname, devid)				\
-static struct sysmmu_platform_data platdata_##ipname = {		\
-	.dbgname = #ipname,						\
-};									\
-struct platform_device SYSMMU_PLATDEV(ipname) =				\
-{									\
-	.name		= SYSMMU_DEVNAME_BASE,				\
-	.id		= devid,					\
-	.dev		= {						\
-		.dma_mask		= &exynos_sysmmu_dma_mask,	\
-		.coherent_dma_mask	= DMA_BIT_MASK(32),		\
-		.platform_data		= &platdata_##ipname,		\
-	},								\
-}
-
-SYSMMU_PLATFORM_DEVICE(mfc_l,	0);
-SYSMMU_PLATFORM_DEVICE(mfc_r,	1);
-SYSMMU_PLATFORM_DEVICE(tv,	2);
-SYSMMU_PLATFORM_DEVICE(jpeg,	3);
-SYSMMU_PLATFORM_DEVICE(rot,	4);
-SYSMMU_PLATFORM_DEVICE(fimc0,	5); /* fimc* and gsc* exist exclusively */
-SYSMMU_PLATFORM_DEVICE(fimc1,	6);
-SYSMMU_PLATFORM_DEVICE(fimc2,	7);
-SYSMMU_PLATFORM_DEVICE(fimc3,	8);
-SYSMMU_PLATFORM_DEVICE(gsc0,	5);
-SYSMMU_PLATFORM_DEVICE(gsc1,	6);
-SYSMMU_PLATFORM_DEVICE(gsc2,	7);
-SYSMMU_PLATFORM_DEVICE(gsc3,	8);
-SYSMMU_PLATFORM_DEVICE(isp,	9);
-SYSMMU_PLATFORM_DEVICE(fimd0,	10);
-SYSMMU_PLATFORM_DEVICE(fimd1,	11);
-SYSMMU_PLATFORM_DEVICE(camif0,	12);
-SYSMMU_PLATFORM_DEVICE(camif1,	13);
-SYSMMU_PLATFORM_DEVICE(2d,	14);
-
-#define SYSMMU_RESOURCE_NAME(core, ipname) sysmmures_##core##_##ipname
-
-#define SYSMMU_RESOURCE(core, ipname)					\
-	static struct resource SYSMMU_RESOURCE_NAME(core, ipname)[] __initdata =
-
-#define DEFINE_SYSMMU_RESOURCE(core, mem, irq)				\
-	DEFINE_RES_MEM_NAMED(core##_PA_SYSMMU_##mem, SZ_4K, #mem),	\
-	DEFINE_RES_IRQ_NAMED(core##_IRQ_SYSMMU_##irq##_0, #mem)
-
-#define SYSMMU_RESOURCE_DEFINE(core, ipname, mem, irq)			\
-	SYSMMU_RESOURCE(core, ipname) {					\
-		DEFINE_SYSMMU_RESOURCE(core, mem, irq)			\
-	}
-
-struct sysmmu_resource_map {
-	struct platform_device *pdev;
-	struct resource *res;
-	u32 rnum;
-	struct device *pdd;
-	char *clocknames;
-};
-
-#define SYSMMU_RESOURCE_MAPPING(core, ipname, resname) {		\
-	.pdev = &SYSMMU_PLATDEV(ipname),				\
-	.res = SYSMMU_RESOURCE_NAME(EXYNOS##core, resname),		\
-	.rnum = ARRAY_SIZE(SYSMMU_RESOURCE_NAME(EXYNOS##core, resname)),\
-	.clocknames = SYSMMU_CLOCK_NAME,				\
-}
-
-#define SYSMMU_RESOURCE_MAPPING_MC(core, ipname, resname, pdata) {	\
-	.pdev = &SYSMMU_PLATDEV(ipname),				\
-	.res = SYSMMU_RESOURCE_NAME(EXYNOS##core, resname),		\
-	.rnum = ARRAY_SIZE(SYSMMU_RESOURCE_NAME(EXYNOS##core, resname)),\
-	.clocknames = SYSMMU_CLOCK_NAME "," SYSMMU_CLOCK_NAME2,		\
-}
-
-#ifdef CONFIG_EXYNOS_DEV_PD
-#define SYSMMU_RESOURCE_MAPPING_PD(core, ipname, resname, pd) {		\
-	.pdev = &SYSMMU_PLATDEV(ipname),				\
-	.res = &SYSMMU_RESOURCE_NAME(EXYNOS##core, resname),		\
-	.rnum = ARRAY_SIZE(SYSMMU_RESOURCE_NAME(EXYNOS##core, resname)),\
-	.clocknames = SYSMMU_CLOCK_NAME,				\
-	.pdd = &exynos##core##_device_pd[pd].dev,			\
-}
-
-#define SYSMMU_RESOURCE_MAPPING_MCPD(core, ipname, resname, pd, pdata) {\
-	.pdev = &SYSMMU_PLATDEV(ipname),				\
-	.res = &SYSMMU_RESOURCE_NAME(EXYNOS##core, resname),		\
-	.rnum = ARRAY_SIZE(SYSMMU_RESOURCE_NAME(EXYNOS##core, resname)),\
-	.clocknames = SYSMMU_CLOCK_NAME "," SYSMMU_CLOCK_NAME2,		\
-	.pdd = &exynos##core##_device_pd[pd].dev,			\
-}
-#else
-#define SYSMMU_RESOURCE_MAPPING_PD(core, ipname, resname, pd)		\
-		SYSMMU_RESOURCE_MAPPING(core, ipname, resname)
-#define SYSMMU_RESOURCE_MAPPING_MCPD(core, ipname, resname, pd, pdata)	\
-		SYSMMU_RESOURCE_MAPPING_MC(core, ipname, resname, pdata)
-
-#endif /* CONFIG_EXYNOS_DEV_PD */
-
-#ifdef CONFIG_ARCH_EXYNOS4
-SYSMMU_RESOURCE_DEFINE(EXYNOS4, fimc0,	FIMC0,	FIMC0);
-SYSMMU_RESOURCE_DEFINE(EXYNOS4, fimc1,	FIMC1,	FIMC1);
-SYSMMU_RESOURCE_DEFINE(EXYNOS4, fimc2,	FIMC2,	FIMC2);
-SYSMMU_RESOURCE_DEFINE(EXYNOS4, fimc3,	FIMC3,	FIMC3);
-SYSMMU_RESOURCE_DEFINE(EXYNOS4, jpeg,	JPEG,	JPEG);
-SYSMMU_RESOURCE_DEFINE(EXYNOS4, 2d,	G2D,	2D);
-SYSMMU_RESOURCE_DEFINE(EXYNOS4, tv,	TV,	TV_M0);
-SYSMMU_RESOURCE_DEFINE(EXYNOS4, 2d_acp,	2D_ACP,	2D);
-SYSMMU_RESOURCE_DEFINE(EXYNOS4, rot,	ROTATOR, ROTATOR);
-SYSMMU_RESOURCE_DEFINE(EXYNOS4, fimd0,	FIMD0,	LCD0_M0);
-SYSMMU_RESOURCE_DEFINE(EXYNOS4, fimd1,	FIMD1,	LCD1_M1);
-SYSMMU_RESOURCE_DEFINE(EXYNOS4, flite0,	FIMC_LITE0, FIMC_LITE0);
-SYSMMU_RESOURCE_DEFINE(EXYNOS4, flite1,	FIMC_LITE1, FIMC_LITE1);
-SYSMMU_RESOURCE_DEFINE(EXYNOS4, mfc_r,	MFC_R,	MFC_M0);
-SYSMMU_RESOURCE_DEFINE(EXYNOS4, mfc_l,	MFC_L,	MFC_M1);
-SYSMMU_RESOURCE(EXYNOS4, isp) {
-	DEFINE_SYSMMU_RESOURCE(EXYNOS4, FIMC_ISP, FIMC_ISP),
-	DEFINE_SYSMMU_RESOURCE(EXYNOS4, FIMC_DRC, FIMC_DRC),
-	DEFINE_SYSMMU_RESOURCE(EXYNOS4, FIMC_FD, FIMC_FD),
-	DEFINE_SYSMMU_RESOURCE(EXYNOS4, ISPCPU, FIMC_CX),
-};
-
-static struct sysmmu_resource_map sysmmu_resmap4[] __initdata = {
-	SYSMMU_RESOURCE_MAPPING_PD(4, fimc0,	fimc0,	PD_CAM),
-	SYSMMU_RESOURCE_MAPPING_PD(4, fimc1,	fimc1,	PD_CAM),
-	SYSMMU_RESOURCE_MAPPING_PD(4, fimc2,	fimc2,	PD_CAM),
-	SYSMMU_RESOURCE_MAPPING_PD(4, fimc3,	fimc3,	PD_CAM),
-	SYSMMU_RESOURCE_MAPPING_PD(4, tv,	tv,	PD_TV),
-	SYSMMU_RESOURCE_MAPPING_PD(4, mfc_r,	mfc_r,	PD_MFC),
-	SYSMMU_RESOURCE_MAPPING_PD(4, mfc_l,	mfc_l,	PD_MFC),
-	SYSMMU_RESOURCE_MAPPING_PD(4, rot,	rot,	PD_LCD0),
-	SYSMMU_RESOURCE_MAPPING_PD(4, jpeg,	jpeg,	PD_CAM),
-	SYSMMU_RESOURCE_MAPPING_PD(4, fimd0,	fimd0,	PD_LCD0),
-};
-
-static struct sysmmu_resource_map sysmmu_resmap4210[] __initdata = {
-	SYSMMU_RESOURCE_MAPPING_PD(4, 2d,	2d,	PD_LCD0),
-	SYSMMU_RESOURCE_MAPPING_PD(4, fimd1,	fimd1,	PD_LCD1),
-};
-
-static struct sysmmu_resource_map sysmmu_resmap4212[] __initdata = {
-	SYSMMU_RESOURCE_MAPPING(4,	2d,	2d_acp),
-	SYSMMU_RESOURCE_MAPPING_PD(4,	camif0, flite0,	PD_ISP),
-	SYSMMU_RESOURCE_MAPPING_PD(4,	camif1, flite1,	PD_ISP),
-	SYSMMU_RESOURCE_MAPPING_PD(4,	isp,	isp,	PD_ISP),
-};
-#endif /* CONFIG_ARCH_EXYNOS4 */
-
-#ifdef CONFIG_ARCH_EXYNOS5
-SYSMMU_RESOURCE_DEFINE(EXYNOS5, jpeg,	JPEG,	JPEG);
-SYSMMU_RESOURCE_DEFINE(EXYNOS5, fimd1,	FIMD1,	FIMD1);
-SYSMMU_RESOURCE_DEFINE(EXYNOS5, 2d,	2D,	2D);
-SYSMMU_RESOURCE_DEFINE(EXYNOS5, rot,	ROTATOR, ROTATOR);
-SYSMMU_RESOURCE_DEFINE(EXYNOS5, tv,	TV,	TV);
-SYSMMU_RESOURCE_DEFINE(EXYNOS5, flite0,	LITE0,	LITE0);
-SYSMMU_RESOURCE_DEFINE(EXYNOS5, flite1,	LITE1,	LITE1);
-SYSMMU_RESOURCE_DEFINE(EXYNOS5, gsc0,	GSC0,	GSC0);
-SYSMMU_RESOURCE_DEFINE(EXYNOS5, gsc1,	GSC1,	GSC1);
-SYSMMU_RESOURCE_DEFINE(EXYNOS5, gsc2,	GSC2,	GSC2);
-SYSMMU_RESOURCE_DEFINE(EXYNOS5, gsc3,	GSC3,	GSC3);
-SYSMMU_RESOURCE_DEFINE(EXYNOS5, mfc_r,	MFC_R,	MFC_R);
-SYSMMU_RESOURCE_DEFINE(EXYNOS5, mfc_l,	MFC_L,	MFC_L);
-SYSMMU_RESOURCE(EXYNOS5, isp) {
-	DEFINE_SYSMMU_RESOURCE(EXYNOS5, ISP, ISP),
-	DEFINE_SYSMMU_RESOURCE(EXYNOS5, DRC, DRC),
-	DEFINE_SYSMMU_RESOURCE(EXYNOS5, FD, FD),
-	DEFINE_SYSMMU_RESOURCE(EXYNOS5, ISPCPU, MCUISP),
-	DEFINE_SYSMMU_RESOURCE(EXYNOS5, SCALERC, SCALERCISP),
-	DEFINE_SYSMMU_RESOURCE(EXYNOS5, SCALERP, SCALERPISP),
-	DEFINE_SYSMMU_RESOURCE(EXYNOS5,	ODC, ODC),
-	DEFINE_SYSMMU_RESOURCE(EXYNOS5, DIS0, DIS0),
-	DEFINE_SYSMMU_RESOURCE(EXYNOS5, DIS1, DIS1),
-	DEFINE_SYSMMU_RESOURCE(EXYNOS5, 3DNR, 3DNR),
-};
-
-static struct sysmmu_resource_map sysmmu_resmap5[] __initdata = {
-	SYSMMU_RESOURCE_MAPPING(5,	jpeg,	jpeg),
-	SYSMMU_RESOURCE_MAPPING(5,	fimd1,	fimd1),
-	SYSMMU_RESOURCE_MAPPING(5,	2d,	2d),
-	SYSMMU_RESOURCE_MAPPING(5,	rot,	rot),
-	SYSMMU_RESOURCE_MAPPING_PD(5,	tv,	tv,	PD_DISP1),
-	SYSMMU_RESOURCE_MAPPING_PD(5,	camif0,	flite0,	PD_GSCL),
-	SYSMMU_RESOURCE_MAPPING_PD(5,	camif1,	flite1,	PD_GSCL),
-	SYSMMU_RESOURCE_MAPPING_PD(5,	gsc0,	gsc0,	PD_GSCL),
-	SYSMMU_RESOURCE_MAPPING_PD(5,	gsc1,	gsc1,	PD_GSCL),
-	SYSMMU_RESOURCE_MAPPING_PD(5,	gsc2,	gsc2,	PD_GSCL),
-	SYSMMU_RESOURCE_MAPPING_PD(5,	gsc3,	gsc3,	PD_GSCL),
-	SYSMMU_RESOURCE_MAPPING_PD(5,	mfc_r,	mfc_r,	PD_MFC),
-	SYSMMU_RESOURCE_MAPPING_PD(5,	mfc_l,	mfc_l,	PD_MFC),
-	SYSMMU_RESOURCE_MAPPING_MCPD(5,	isp,	isp,	PD_ISP, mc_platdata),
-};
-#endif /* CONFIG_ARCH_EXYNOS5 */
-
-static int __init init_sysmmu_platform_device(void)
-{
-	int i, j;
-	struct sysmmu_resource_map *resmap[2] = {NULL, NULL};
-	int nmap[2] = {0, 0};
-
-#ifdef CONFIG_ARCH_EXYNOS5
-	if (soc_is_exynos5250()) {
-		resmap[0] = sysmmu_resmap5;
-		nmap[0] = ARRAY_SIZE(sysmmu_resmap5);
-		nmap[1] = 0;
-	}
-#endif
-
-#ifdef CONFIG_ARCH_EXYNOS4
-	if (resmap[0] == NULL) {
-		resmap[0] = sysmmu_resmap4;
-		nmap[0] = ARRAY_SIZE(sysmmu_resmap4);
-	}
-
-	if (soc_is_exynos4210()) {
-		resmap[1] = sysmmu_resmap4210;
-		nmap[1] = ARRAY_SIZE(sysmmu_resmap4210);
-	}
-
-	if (soc_is_exynos4412() || soc_is_exynos4212()) {
-		resmap[1] = sysmmu_resmap4212;
-		nmap[1] = ARRAY_SIZE(sysmmu_resmap4212);
-	}
-#endif
-
-	for (j = 0; j < 2; j++) {
-		for (i = 0; i < nmap[j]; i++) {
-			struct sysmmu_resource_map *map;
-			struct sysmmu_platform_data *platdata;
-
-			map = &resmap[j][i];
-
-			map->pdev->dev.parent = map->pdd;
-
-			platdata = map->pdev->dev.platform_data;
-			platdata->clockname = map->clocknames;
-
-			if (platform_device_add_resources(map->pdev, map->res,
-								map->rnum)) {
-				pr_err("%s: Failed to add device resources for "
-						"%s.%d\n", __func__,
-						map->pdev->name, map->pdev->id);
-				continue;
-			}
-
-			if (platform_device_register(map->pdev)) {
-				pr_err("%s: Failed to register %s.%d\n",
-					__func__, map->pdev->name,
-						map->pdev->id);
-			}
-		}
-	}
-
-	return 0;
-}
-arch_initcall(init_sysmmu_platform_device);

arch/arm/mach-exynos/include/mach/sysmmu.h

-/*
- * Copyright (c) 2011-2012 Samsung Electronics Co., Ltd.
- *		http://www.samsung.com
- *
- * EXYNOS - System MMU support
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License version 2 as
- * published by the Free Software Foundation.
- */
-
-#ifndef _ARM_MACH_EXYNOS_SYSMMU_H_
-#define _ARM_MACH_EXYNOS_SYSMMU_H_
-
-struct sysmmu_platform_data {
-	char *dbgname;
-	/* comma(,) separated list of clock names for clock gating */
-	char *clockname;
-};
-
-#define SYSMMU_DEVNAME_BASE "exynos-sysmmu"
-
-#define SYSMMU_CLOCK_NAME "sysmmu"
-#define SYSMMU_CLOCK_NAME2 "sysmmu_mc"
-
-#ifdef CONFIG_EXYNOS_DEV_SYSMMU
-#include <linux/device.h>
-struct platform_device;
-
-#define SYSMMU_PLATDEV(ipname) exynos_device_sysmmu_##ipname
-
-extern struct platform_device SYSMMU_PLATDEV(mfc_l);
-extern struct platform_device SYSMMU_PLATDEV(mfc_r);
-extern struct platform_device SYSMMU_PLATDEV(tv);
-extern struct platform_device SYSMMU_PLATDEV(jpeg);
-extern struct platform_device SYSMMU_PLATDEV(rot);
-extern struct platform_device SYSMMU_PLATDEV(fimc0);
-extern struct platform_device SYSMMU_PLATDEV(fimc1);
-extern struct platform_device SYSMMU_PLATDEV(fimc2);
-extern struct platform_device SYSMMU_PLATDEV(fimc3);
-extern struct platform_device SYSMMU_PLATDEV(gsc0);
-extern struct platform_device SYSMMU_PLATDEV(gsc1);
-extern struct platform_device SYSMMU_PLATDEV(gsc2);
-extern struct platform_device SYSMMU_PLATDEV(gsc3);
-extern struct platform_device SYSMMU_PLATDEV(isp);
-extern struct platform_device SYSMMU_PLATDEV(fimd0);
-extern struct platform_device SYSMMU_PLATDEV(fimd1);
-extern struct platform_device SYSMMU_PLATDEV(camif0);
-extern struct platform_device SYSMMU_PLATDEV(camif1);
-extern struct platform_device SYSMMU_PLATDEV(2d);
-
-#ifdef CONFIG_IOMMU_API
-static inline void platform_set_sysmmu(
-				struct device *sysmmu, struct device *dev)
-{
-	dev->archdata.iommu = sysmmu;
-}
-#endif
-
-#else /* !CONFIG_EXYNOS_DEV_SYSMMU */
-#define platform_set_sysmmu(sysmmu, dev) do { } while (0)
-#endif
-
-#define SYSMMU_CLOCK_DEVNAME(ipname, id) (SYSMMU_DEVNAME_BASE "." #id)
-
-#endif /* _ARM_MACH_EXYNOS_SYSMMU_H_ */

arch/arm/mach-exynos/mach-exynos4-dt.c

@@ -80,6 +80,40 @@ static const struct of_dev_auxdata exynos4_auxdata_lookup[] __initconst = {
 	OF_DEV_AUXDATA("arm,pl330", EXYNOS4_PA_MDMA1, "dma-pl330.2", NULL),
 	OF_DEV_AUXDATA("samsung,exynos4210-tmu", EXYNOS4_PA_TMU,
 				"exynos-tmu", NULL),
+	OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x13620000,
+			"exynos-sysmmu.0", NULL), /* MFC_L */
+	OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x13630000,
+			"exynos-sysmmu.1", NULL), /* MFC_R */
+	OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x13E20000,
+			"exynos-sysmmu.2", NULL), /* TV */
+	OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x11A60000,
+			"exynos-sysmmu.3", NULL), /* JPEG */
+	OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x12A30000,
+			"exynos-sysmmu.4", NULL), /* ROTATOR */
+	OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x11A20000,
+			"exynos-sysmmu.5", NULL), /* FIMC0 */
+	OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x11A30000,
+			"exynos-sysmmu.6", NULL), /* FIMC1 */
+	OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x11A40000,
+			"exynos-sysmmu.7", NULL), /* FIMC2 */
+	OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x11A50000,
+			"exynos-sysmmu.8", NULL), /* FIMC3 */
+	OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x12A20000,
+			"exynos-sysmmu.9", NULL), /* G2D(4210) */
+	OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x10A40000,
+			"exynos-sysmmu.9", NULL), /* G2D(4x12) */
+	OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x11E20000,
+			"exynos-sysmmu.10", NULL), /* FIMD0 */
+	OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x12220000,
+			"exynos-sysmmu.11", NULL), /* FIMD1(4210) */
+	OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x12260000,
+			"exynos-sysmmu.12", NULL), /* IS0(4x12) */
+	OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x122B0000,
+			"exynos-sysmmu.13", NULL), /* IS1(4x12) */
+	OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x123B0000,
+			"exynos-sysmmu.14", NULL), /* FIMC-LITE0(4x12) */
+	OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x123C0000,
+			"exynos-sysmmu.15", NULL), /* FIMC-LITE1(4x12) */
 	{},
 };
 

arch/arm/mach-exynos/mach-exynos5-dt.c

@@ -104,6 +104,36 @@ static const struct of_dev_auxdata exynos5250_auxdata_lookup[] __initconst = {
 	OF_DEV_AUXDATA("samsung,mfc-v6", 0x11000000, "s5p-mfc-v6", NULL),
 	OF_DEV_AUXDATA("samsung,exynos5250-tmu", 0x10060000,
 				"exynos-tmu", NULL),
+	OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x11210000,
+			"exynos-sysmmu.0", "mfc"), /* MFC_L */
+	OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x11200000,
+			"exynos-sysmmu.1", "mfc"), /* MFC_R */
+	OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x14650000,
+			"exynos-sysmmu.2", NULL), /* TV */
+	OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x11F20000,
+			"exynos-sysmmu.3", "jpeg"), /* JPEG */
+	OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x11D40000,
+			"exynos-sysmmu.4", NULL), /* ROTATOR */
+	OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x13E80000,
+			"exynos-sysmmu.5", "gscl"), /* GSCL0 */
+	OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x13E90000,
+			"exynos-sysmmu.6", "gscl"), /* GSCL1 */
+	OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x13EA0000,
+			"exynos-sysmmu.7", "gscl"), /* GSCL2 */
+	OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x13EB0000,
+			"exynos-sysmmu.8", "gscl"), /* GSCL3 */
+	OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x13260000,
+			"exynos-sysmmu.9", NULL), /* FIMC-IS0 */
+	OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x132C0000,
+			"exynos-sysmmu.10", NULL), /* FIMC-IS1 */
+	OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x14640000,
+			"exynos-sysmmu.11", NULL), /* FIMD1 */
+	OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x13C40000,
+			"exynos-sysmmu.12", NULL), /* FIMC-LITE0 */
+	OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x13C50000,
+			"exynos-sysmmu.13", NULL), /* FIMC-LITE1 */
+	OF_DEV_AUXDATA("samsung,exynos-sysmmu", 0x10A60000,
+			"exynos-sysmmu.14", NULL), /* G2D */
 	{},
 };
 

arch/arm/mach-shmobile/setup-r8a7740.c

@@ -28,6 +28,7 @@
 #include <linux/sh_dma.h>
 #include <linux/sh_timer.h>
 #include <linux/dma-mapping.h>
+#include <linux/platform_data/sh_ipmmu.h>
 #include <mach/dma-register.h>
 #include <mach/r8a7740.h>
 #include <mach/pm-rmobile.h>
@@ -262,6 +263,37 @@ static struct platform_device cmt10_device = {
 	.num_resources	= ARRAY_SIZE(cmt10_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,
@@ -273,6 +305,7 @@ static struct platform_device *r8a7740_early_devices[] __initdata = {
 	&scif7_device,
 	&scifb_device,
 	&cmt10_device,
+	&ipmmu_device,
 };
 
 /* DMA */

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>
@@ -982,6 +983,43 @@ 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,
@@ -993,6 +1031,7 @@ static struct platform_device *sh7372_early_devices[] __initdata = {
 	&cmt2_device,
 	&tmu00_device,
 	&tmu01_device,
+	&ipmmu_device,
 };
 
 static struct platform_device *sh7372_late_devices[] __initdata = {

arch/arm/mach-shmobile/setup-sh73a0.c

@@ -30,6 +30,7 @@
 #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>
@@ -754,6 +755,35 @@ 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[] __initdata = {
 	&scif0_device,
 	&scif1_device,
@@ -767,6 +797,7 @@ static struct platform_device *sh73a0_early_devices[] __initdata = {
 	&cmt10_device,
 	&tmu00_device,
 	&tmu01_device,
+	&ipmmu_device,
 };
 
 static struct platform_device *sh73a0_late_devices[] __initdata = {

drivers/iommu/Kconfig

@@ -158,7 +158,7 @@ config TEGRA_IOMMU_GART
 
 config TEGRA_IOMMU_SMMU
 	bool "Tegra SMMU IOMMU Support"
-	depends on ARCH_TEGRA_3x_SOC && TEGRA_AHB
+	depends on ARCH_TEGRA && TEGRA_AHB
 	select IOMMU_API
 	help
 	  Enables support for remapping discontiguous physical memory
@@ -187,4 +187,78 @@ config EXYNOS_IOMMU_DEBUG
 
 	  Say N unless you need kernel log message for IOMMU debugging
 
+config SHMOBILE_IPMMU
+	bool
+
+config SHMOBILE_IPMMU_TLB
+	bool
+
+config SHMOBILE_IOMMU
+	bool "IOMMU for Renesas IPMMU/IPMMUI"
+	default n
+	depends on (ARM && ARCH_SHMOBILE)
+	select IOMMU_API
+	select ARM_DMA_USE_IOMMU
+	select SHMOBILE_IPMMU
+	select SHMOBILE_IPMMU_TLB
+	help
+	  Support for Renesas IPMMU/IPMMUI. This option enables
+	  remapping of DMA memory accesses from all of the IP blocks
+	  on the ICB.
+
+	  Warning: Drivers (including userspace drivers of UIO
+	  devices) of the IP blocks on the ICB *must* use addresses
+	  allocated from the IPMMU (iova) for DMA with this option
+	  enabled.
+
+	  If unsure, say N.
+
+choice
+	prompt "IPMMU/IPMMUI address space size"
+	default SHMOBILE_IOMMU_ADDRSIZE_2048MB
+	depends on SHMOBILE_IOMMU
+	help
+	  This option sets IPMMU/IPMMUI address space size by
+	  adjusting the 1st level page table size. The page table size
+	  is calculated as follows:
+
+	      page table size = number of page table entries * 4 bytes
+	      number of page table entries = address space size / 1 MiB
+
+	  For example, when the address space size is 2048 MiB, the
+	  1st level page table size is 8192 bytes.
+
+	config SHMOBILE_IOMMU_ADDRSIZE_2048MB
+		bool "2 GiB"
+
+	config SHMOBILE_IOMMU_ADDRSIZE_1024MB
+		bool "1 GiB"
+
+	config SHMOBILE_IOMMU_ADDRSIZE_512MB
+		bool "512 MiB"
+
+	config SHMOBILE_IOMMU_ADDRSIZE_256MB
+		bool "256 MiB"
+
+	config SHMOBILE_IOMMU_ADDRSIZE_128MB
+		bool "128 MiB"
+
+	config SHMOBILE_IOMMU_ADDRSIZE_64MB
+		bool "64 MiB"
+
+	config SHMOBILE_IOMMU_ADDRSIZE_32MB
+		bool "32 MiB"
+
+endchoice
+
+config SHMOBILE_IOMMU_L1SIZE
+	int
+	default 8192 if SHMOBILE_IOMMU_ADDRSIZE_2048MB
+	default 4096 if SHMOBILE_IOMMU_ADDRSIZE_1024MB
+	default 2048 if SHMOBILE_IOMMU_ADDRSIZE_512MB
+	default 1024 if SHMOBILE_IOMMU_ADDRSIZE_256MB
+	default 512 if SHMOBILE_IOMMU_ADDRSIZE_128MB
+	default 256 if SHMOBILE_IOMMU_ADDRSIZE_64MB
+	default 128 if SHMOBILE_IOMMU_ADDRSIZE_32MB
+
 endif # IOMMU_SUPPORT

drivers/iommu/Makefile

@@ -13,3 +13,5 @@ obj-$(CONFIG_OMAP_IOMMU_DEBUG) += omap-iommu-debug.o
 obj-$(CONFIG_TEGRA_IOMMU_GART) += tegra-gart.o
 obj-$(CONFIG_TEGRA_IOMMU_SMMU) += tegra-smmu.o
 obj-$(CONFIG_EXYNOS_IOMMU) += exynos-iommu.o
+obj-$(CONFIG_SHMOBILE_IOMMU) += shmobile-iommu.o
+obj-$(CONFIG_SHMOBILE_IPMMU) += shmobile-ipmmu.o

drivers/iommu/amd_iommu.c

@@ -3187,7 +3187,6 @@ int __init amd_iommu_init_dma_ops(void)
 free_domains:
 
 	for_each_iommu(iommu) {
-		if (iommu->default_dom)
 		dma_ops_domain_free(iommu->default_dom);
 	}
 

drivers/iommu/amd_iommu_init.c

@@ -1876,11 +1876,6 @@ static int amd_iommu_init_dma(void)
 	struct amd_iommu *iommu;
 	int ret;
 
-	init_device_table_dma();
-
-	for_each_iommu(iommu)
-		iommu_flush_all_caches(iommu);
-
 	if (iommu_pass_through)
 		ret = amd_iommu_init_passthrough();
 	else
@@ -1889,6 +1884,11 @@ static int amd_iommu_init_dma(void)
 	if (ret)
 		return ret;
 
+	init_device_table_dma();
+
+	for_each_iommu(iommu)
+		iommu_flush_all_caches(iommu);
+
 	amd_iommu_init_api();
 
 	amd_iommu_init_notifier();

drivers/iommu/dmar.c

@@ -1040,7 +1040,7 @@ int dmar_enable_qi(struct intel_iommu *iommu)
 
 	qi->desc = page_address(desc_page);
 
-	qi->desc_status = kmalloc(QI_LENGTH * sizeof(int), GFP_ATOMIC);
+	qi->desc_status = kzalloc(QI_LENGTH * sizeof(int), GFP_ATOMIC);
 	if (!qi->desc_status) {
 		free_page((unsigned long) qi->desc);
 		kfree(qi);

drivers/iommu/exynos-iommu.c

@@ -511,7 +511,7 @@ int exynos_sysmmu_enable(struct device *dev, unsigned long pgtable)
 	return ret;
 }
 
-bool exynos_sysmmu_disable(struct device *dev)
+static bool exynos_sysmmu_disable(struct device *dev)
 {
 	struct sysmmu_drvdata *data = dev_get_drvdata(dev->archdata.iommu);
 	bool disabled;

drivers/iommu/iommu.c

@@ -734,7 +734,8 @@ int iommu_map(struct iommu_domain *domain, unsigned long iova,
 	size_t orig_size = size;
 	int ret = 0;
 
-	if (unlikely(domain->ops->map == NULL))
+	if (unlikely(domain->ops->unmap == NULL ||
+		     domain->ops->pgsize_bitmap == 0UL))
 		return -ENODEV;
 
 	/* find out the minimum page size supported */
@@ -808,7 +809,8 @@ size_t iommu_unmap(struct iommu_domain *domain, unsigned long iova, size_t size)
 	size_t unmapped_page, unmapped = 0;
 	unsigned int min_pagesz;
 
-	if (unlikely(domain->ops->unmap == NULL))
+	if (unlikely(domain->ops->unmap == NULL ||
+		     domain->ops->pgsize_bitmap == 0UL))
 		return -ENODEV;
 
 	/* find out the minimum page size supported */
@@ -850,6 +852,26 @@ size_t iommu_unmap(struct iommu_domain *domain, unsigned long iova, size_t size)
 }
 EXPORT_SYMBOL_GPL(iommu_unmap);
 
+
+int iommu_domain_window_enable(struct iommu_domain *domain, u32 wnd_nr,
+			       phys_addr_t paddr, u64 size)
+{
+	if (unlikely(domain->ops->domain_window_enable == NULL))
+		return -ENODEV;
+
+	return domain->ops->domain_window_enable(domain, wnd_nr, paddr, size);
+}
+EXPORT_SYMBOL_GPL(iommu_domain_window_enable);
+
+void iommu_domain_window_disable(struct iommu_domain *domain, u32 wnd_nr)
+{
+	if (unlikely(domain->ops->domain_window_disable == NULL))
+		return;
+
+	return domain->ops->domain_window_disable(domain, wnd_nr);
+}
+EXPORT_SYMBOL_GPL(iommu_domain_window_disable);
+
 static int __init iommu_init(void)
 {
 	iommu_group_kset = kset_create_and_add("iommu_groups",
@@ -861,19 +883,34 @@ static int __init iommu_init(void)
 
 	return 0;
 }
-subsys_initcall(iommu_init);
+arch_initcall(iommu_init);
 
 int iommu_domain_get_attr(struct iommu_domain *domain,
 			  enum iommu_attr attr, void *data)
 {
 	struct iommu_domain_geometry *geometry;
+	bool *paging;
 	int ret = 0;
+	u32 *count;
 
 	switch (attr) {
 	case DOMAIN_ATTR_GEOMETRY:
 		geometry  = data;
 		*geometry = domain->geometry;
 
+		break;
+	case DOMAIN_ATTR_PAGING:
+		paging  = data;
+		*paging = (domain->ops->pgsize_bitmap != 0UL);
+		break;
+	case DOMAIN_ATTR_WINDOWS:
+		count = data;
+
+		if (domain->ops->domain_get_windows != NULL)
+			*count = domain->ops->domain_get_windows(domain);
+		else
+			ret = -ENODEV;
+
 		break;
 	default:
 		if (!domain->ops->domain_get_attr)
@@ -889,9 +926,26 @@ EXPORT_SYMBOL_GPL(iommu_domain_get_attr);
 int iommu_domain_set_attr(struct iommu_domain *domain,
 			  enum iommu_attr attr, void *data)
 {
-	if (!domain->ops->domain_set_attr)
+	int ret = 0;
+	u32 *count;
+
+	switch (attr) {
+	case DOMAIN_ATTR_WINDOWS:
+		count = data;
+
+		if (domain->ops->domain_set_windows != NULL)
+			ret = domain->ops->domain_set_windows(domain, *count);
+		else
+			ret = -ENODEV;
+
+		break;
+	default:
+		if (domain->ops->domain_set_attr == NULL)
 			return -EINVAL;
 
-	return domain->ops->domain_set_attr(domain, attr, data);
+		ret = domain->ops->domain_set_attr(domain, attr, data);
+	}
+
+	return ret;
 }
 EXPORT_SYMBOL_GPL(iommu_domain_set_attr);

drivers/iommu/omap-iommu.c

@@ -146,7 +146,7 @@ static int iommu_enable(struct omap_iommu *obj)
 	struct platform_device *pdev = to_platform_device(obj->dev);
 	struct iommu_platform_data *pdata = pdev->dev.platform_data;
 
-	if (!obj || !pdata)
+	if (!pdata)
 		return -EINVAL;
 
 	if (!arch_iommu)
@@ -172,7 +172,7 @@ static void iommu_disable(struct omap_iommu *obj)
 	struct platform_device *pdev = to_platform_device(obj->dev);
 	struct iommu_platform_data *pdata = pdev->dev.platform_data;
 
-	if (!obj || !pdata)
+	if (!pdata)
 		return;
 
 	arch_iommu->disable(obj);

drivers/iommu/shmobile-iommu.c

+/*
+ * IOMMU for IPMMU/IPMMUI
+ * Copyright (C) 2012  Hideki EIRAKU
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ */
+
+#include <linux/dma-mapping.h>
+#include <linux/io.h>
+#include <linux/iommu.h>
+#include <linux/platform_device.h>
+#include <linux/sizes.h>
+#include <linux/slab.h>
+#include <asm/dma-iommu.h>
+#include "shmobile-ipmmu.h"
+
+#define L1_SIZE CONFIG_SHMOBILE_IOMMU_L1SIZE
+#define L1_LEN (L1_SIZE / 4)
+#define L1_ALIGN L1_SIZE
+#define L2_SIZE SZ_1K
+#define L2_LEN (L2_SIZE / 4)
+#define L2_ALIGN L2_SIZE
+
+struct shmobile_iommu_domain_pgtable {
+	uint32_t *pgtable;
+	dma_addr_t handle;
+};
+
+struct shmobile_iommu_archdata {
+	struct list_head attached_list;
+	struct dma_iommu_mapping *iommu_mapping;
+	spinlock_t attach_lock;
+	struct shmobile_iommu_domain *attached;
+	int num_attached_devices;
+	struct shmobile_ipmmu *ipmmu;
+};
+
+struct shmobile_iommu_domain {
+	struct shmobile_iommu_domain_pgtable l1, l2[L1_LEN];
+	spinlock_t map_lock;
+	spinlock_t attached_list_lock;
+	struct list_head attached_list;
+};
+
+static struct shmobile_iommu_archdata *ipmmu_archdata;
+static struct kmem_cache *l1cache, *l2cache;
+
+static int pgtable_alloc(struct shmobile_iommu_domain_pgtable *pgtable,
+			 struct kmem_cache *cache, size_t size)
+{
+	pgtable->pgtable = kmem_cache_zalloc(cache, GFP_ATOMIC);
+	if (!pgtable->pgtable)
+		return -ENOMEM;
+	pgtable->handle = dma_map_single(NULL, pgtable->pgtable, size,
+					 DMA_TO_DEVICE);
+	return 0;
+}
+
+static void pgtable_free(struct shmobile_iommu_domain_pgtable *pgtable,
+			 struct kmem_cache *cache, size_t size)
+{
+	dma_unmap_single(NULL, pgtable->handle, size, DMA_TO_DEVICE);
+	kmem_cache_free(cache, pgtable->pgtable);
+}
+
+static uint32_t pgtable_read(struct shmobile_iommu_domain_pgtable *pgtable,
+			     unsigned int index)
+{
+	return pgtable->pgtable[index];
+}
+
+static void pgtable_write(struct shmobile_iommu_domain_pgtable *pgtable,
+			  unsigned int index, unsigned int count, uint32_t val)
+{
+	unsigned int i;
+
+	for (i = 0; i < count; i++)
+		pgtable->pgtable[index + i] = val;
+	dma_sync_single_for_device(NULL, pgtable->handle + index * sizeof(val),
+				   sizeof(val) * count, DMA_TO_DEVICE);
+}
+
+static int shmobile_iommu_domain_init(struct iommu_domain *domain)
+{
+	struct shmobile_iommu_domain *sh_domain;
+	int i, ret;
+
+	sh_domain = kmalloc(sizeof(*sh_domain), GFP_KERNEL);
+	if (!sh_domain)
+		return -ENOMEM;
+	ret = pgtable_alloc(&sh_domain->l1, l1cache, L1_SIZE);
+	if (ret < 0) {
+		kfree(sh_domain);
+		return ret;
+	}
+	for (i = 0; i < L1_LEN; i++)
+		sh_domain->l2[i].pgtable = NULL;
+	spin_lock_init(&sh_domain->map_lock);
+	spin_lock_init(&sh_domain->attached_list_lock);
+	INIT_LIST_HEAD(&sh_domain->attached_list);
+	domain->priv = sh_domain;
+	return 0;
+}
+
+static void shmobile_iommu_domain_destroy(struct iommu_domain *domain)
+{
+	struct shmobile_iommu_domain *sh_domain = domain->priv;
+	int i;
+
+	for (i = 0; i < L1_LEN; i++) {
+		if (sh_domain->l2[i].pgtable)
+			pgtable_free(&sh_domain->l2[i], l2cache, L2_SIZE);
+	}
+	pgtable_free(&sh_domain->l1, l1cache, L1_SIZE);
+	kfree(sh_domain);
+	domain->priv = NULL;
+}
+
+static int shmobile_iommu_attach_device(struct iommu_domain *domain,
+					struct device *dev)
+{
+	struct shmobile_iommu_archdata *archdata = dev->archdata.iommu;
+	struct shmobile_iommu_domain *sh_domain = domain->priv;
+	int ret = -EBUSY;
+
+	if (!archdata)
+		return -ENODEV;
+	spin_lock(&sh_domain->attached_list_lock);
+	spin_lock(&archdata->attach_lock);
+	if (archdata->attached != sh_domain) {
+		if (archdata->attached)
+			goto err;
+		ipmmu_tlb_set(archdata->ipmmu, sh_domain->l1.handle, L1_SIZE,
+			      0);
+		ipmmu_tlb_flush(archdata->ipmmu);
+		archdata->attached = sh_domain;
+		archdata->num_attached_devices = 0;
+		list_add(&archdata->attached_list, &sh_domain->attached_list);
+	}
+	archdata->num_attached_devices++;
+	ret = 0;
+err:
+	spin_unlock(&archdata->attach_lock);
+	spin_unlock(&sh_domain->attached_list_lock);
+	return ret;
+}
+
+static void shmobile_iommu_detach_device(struct iommu_domain *domain,
+					 struct device *dev)
+{
+	struct shmobile_iommu_archdata *archdata = dev->archdata.iommu;
+	struct shmobile_iommu_domain *sh_domain = domain->priv;
+
+	if (!archdata)
+		return;
+	spin_lock(&sh_domain->attached_list_lock);
+	spin_lock(&archdata->attach_lock);
+	archdata->num_attached_devices--;
+	if (!archdata->num_attached_devices) {
+		ipmmu_tlb_set(archdata->ipmmu, 0, 0, 0);
+		ipmmu_tlb_flush(archdata->ipmmu);
+		archdata->attached = NULL;
+		list_del(&archdata->attached_list);
+	}
+	spin_unlock(&archdata->attach_lock);
+	spin_unlock(&sh_domain->attached_list_lock);
+}
+
+static void domain_tlb_flush(struct shmobile_iommu_domain *sh_domain)
+{
+	struct shmobile_iommu_archdata *archdata;
+
+	spin_lock(&sh_domain->attached_list_lock);
+	list_for_each_entry(archdata, &sh_domain->attached_list, attached_list)
+		ipmmu_tlb_flush(archdata->ipmmu);
+	spin_unlock(&sh_domain->attached_list_lock);
+}
+
+static int l2alloc(struct shmobile_iommu_domain *sh_domain,
+		   unsigned int l1index)
+{
+	int ret;
+
+	if (!sh_domain->l2[l1index].pgtable) {
+		ret = pgtable_alloc(&sh_domain->l2[l1index], l2cache, L2_SIZE);
+		if (ret < 0)
+			return ret;
+	}
+	pgtable_write(&sh_domain->l1, l1index, 1,
+		      sh_domain->l2[l1index].handle | 0x1);
+	return 0;
+}
+
+static void l2realfree(struct shmobile_iommu_domain_pgtable *l2)
+{
+	if (l2->pgtable)
+		pgtable_free(l2, l2cache, L2_SIZE);
+}
+
+static void l2free(struct shmobile_iommu_domain *sh_domain,
+		   unsigned int l1index,
+		   struct shmobile_iommu_domain_pgtable *l2)
+{
+	pgtable_write(&sh_domain->l1, l1index, 1, 0);
+	if (sh_domain->l2[l1index].pgtable) {
+		*l2 = sh_domain->l2[l1index];
+		sh_domain->l2[l1index].pgtable = NULL;
+	}
+}
+
+static int shmobile_iommu_map(struct iommu_domain *domain, unsigned long iova,
+			      phys_addr_t paddr, size_t size, int prot)
+{
+	struct shmobile_iommu_domain_pgtable l2 = { .pgtable = NULL };
+	struct shmobile_iommu_domain *sh_domain = domain->priv;
+	unsigned int l1index, l2index;
+	int ret;
+
+	l1index = iova >> 20;
+	switch (size) {
+	case SZ_4K:
+		l2index = (iova >> 12) & 0xff;
+		spin_lock(&sh_domain->map_lock);
+		ret = l2alloc(sh_domain, l1index);
+		if (!ret)
+			pgtable_write(&sh_domain->l2[l1index], l2index, 1,
+				      paddr | 0xff2);
+		spin_unlock(&sh_domain->map_lock);
+		break;
+	case SZ_64K:
+		l2index = (iova >> 12) & 0xf0;
+		spin_lock(&sh_domain->map_lock);
+		ret = l2alloc(sh_domain, l1index);
+		if (!ret)
+			pgtable_write(&sh_domain->l2[l1index], l2index, 0x10,
+				      paddr | 0xff1);
+		spin_unlock(&sh_domain->map_lock);
+		break;
+	case SZ_1M:
+		spin_lock(&sh_domain->map_lock);
+		l2free(sh_domain, l1index, &l2);
+		pgtable_write(&sh_domain->l1, l1index, 1, paddr | 0xc02);
+		spin_unlock(&sh_domain->map_lock);
+		ret = 0;
+		break;
+	default:
+		ret = -EINVAL;
+	}
+	if (!ret)
+		domain_tlb_flush(sh_domain);
+	l2realfree(&l2);
+	return ret;
+}
+
+static size_t shmobile_iommu_unmap(struct iommu_domain *domain,
+				   unsigned long iova, size_t size)
+{
+	struct shmobile_iommu_domain_pgtable l2 = { .pgtable = NULL };
+	struct shmobile_iommu_domain *sh_domain = domain->priv;
+	unsigned int l1index, l2index;
+	uint32_t l2entry = 0;
+	size_t ret = 0;
+
+	l1index = iova >> 20;
+	if (!(iova & 0xfffff) && size >= SZ_1M) {
+		spin_lock(&sh_domain->map_lock);
+		l2free(sh_domain, l1index, &l2);
+		spin_unlock(&sh_domain->map_lock);
+		ret = SZ_1M;
+		goto done;
+	}
+	l2index = (iova >> 12) & 0xff;
+	spin_lock(&sh_domain->map_lock);
+	if (sh_domain->l2[l1index].pgtable)
+		l2entry = pgtable_read(&sh_domain->l2[l1index], l2index);
+	switch (l2entry & 3) {
+	case 1:
+		if (l2index & 0xf)
+			break;
+		pgtable_write(&sh_domain->l2[l1index], l2index, 0x10, 0);
+		ret = SZ_64K;
+		break;
+	case 2:
+		pgtable_write(&sh_domain->l2[l1index], l2index, 1, 0);
+		ret = SZ_4K;
+		break;
+	}
+	spin_unlock(&sh_domain->map_lock);
+done:
+	if (ret)
+		domain_tlb_flush(sh_domain);
+	l2realfree(&l2);
+	return ret;
+}
+
+static phys_addr_t shmobile_iommu_iova_to_phys(struct iommu_domain *domain,
+					       unsigned long iova)
+{
+	struct shmobile_iommu_domain *sh_domain = domain->priv;
+	uint32_t l1entry = 0, l2entry = 0;
+	unsigned int l1index, l2index;
+
+	l1index = iova >> 20;
+	l2index = (iova >> 12) & 0xff;
+	spin_lock(&sh_domain->map_lock);
+	if (sh_domain->l2[l1index].pgtable)
+		l2entry = pgtable_read(&sh_domain->l2[l1index], l2index);
+	else
+		l1entry = pgtable_read(&sh_domain->l1, l1index);
+	spin_unlock(&sh_domain->map_lock);
+	switch (l2entry & 3) {
+	case 1:
+		return (l2entry & ~0xffff) | (iova & 0xffff);
+	case 2:
+		return (l2entry & ~0xfff) | (iova & 0xfff);
+	default:
+		if ((l1entry & 3) == 2)
+			return (l1entry & ~0xfffff) | (iova & 0xfffff);
+		return 0;
+	}
+}
+
+static int find_dev_name(struct shmobile_ipmmu *ipmmu, const char *dev_name)
+{
+	unsigned int i, n = ipmmu->num_dev_names;
+
+	for (i = 0; i < n; i++) {
+		if (strcmp(ipmmu->dev_names[i], dev_name) == 0)
+			return 1;
+	}
+	return 0;
+}
+
+static int shmobile_iommu_add_device(struct device *dev)
+{
+	struct shmobile_iommu_archdata *archdata = ipmmu_archdata;
+	struct dma_iommu_mapping *mapping;
+
+	if (!find_dev_name(archdata->ipmmu, dev_name(dev)))
+		return 0;
+	mapping = archdata->iommu_mapping;
+	if (!mapping) {
+		mapping = arm_iommu_create_mapping(&platform_bus_type, 0,
+						   L1_LEN << 20, 0);
+		if (IS_ERR(mapping))
+			return PTR_ERR(mapping);
+		archdata->iommu_mapping = mapping;
+	}
+	dev->archdata.iommu = archdata;
+	if (arm_iommu_attach_device(dev, mapping))
+		pr_err("arm_iommu_attach_device failed\n");
+	return 0;
+}
+
+static struct iommu_ops shmobile_iommu_ops = {
+	.domain_init = shmobile_iommu_domain_init,
+	.domain_destroy = shmobile_iommu_domain_destroy,
+	.attach_dev = shmobile_iommu_attach_device,
+	.detach_dev = shmobile_iommu_detach_device,
+	.map = shmobile_iommu_map,
+	.unmap = shmobile_iommu_unmap,
+	.iova_to_phys = shmobile_iommu_iova_to_phys,
+	.add_device = shmobile_iommu_add_device,
+	.pgsize_bitmap = SZ_1M | SZ_64K | SZ_4K,
+};
+
+int ipmmu_iommu_init(struct shmobile_ipmmu *ipmmu)
+{
+	static struct shmobile_iommu_archdata *archdata;
+
+	l1cache = kmem_cache_create("shmobile-iommu-pgtable1", L1_SIZE,
+				    L1_ALIGN, SLAB_HWCACHE_ALIGN, NULL);
+	if (!l1cache)
+		return -ENOMEM;
+	l2cache = kmem_cache_create("shmobile-iommu-pgtable2", L2_SIZE,
+				    L2_ALIGN, SLAB_HWCACHE_ALIGN, NULL);
+	if (!l2cache) {
+		kmem_cache_destroy(l1cache);
+		return -ENOMEM;
+	}
+	archdata = kmalloc(sizeof(*archdata), GFP_KERNEL);
+	if (!archdata) {
+		kmem_cache_destroy(l1cache);
+		kmem_cache_destroy(l2cache);
+		return -ENOMEM;
+	}
+	spin_lock_init(&archdata->attach_lock);
+	archdata->attached = NULL;
+	archdata->ipmmu = ipmmu;
+	ipmmu_archdata = archdata;
+	bus_set_iommu(&platform_bus_type, &shmobile_iommu_ops);
+	return 0;
+}

drivers/iommu/shmobile-ipmmu.c

+/*
+ * IPMMU/IPMMUI
+ * Copyright (C) 2012  Hideki EIRAKU
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ */
+
+#include <linux/err.h>
+#include <linux/export.h>
+#include <linux/io.h>
+#include <linux/platform_device.h>
+#include <linux/slab.h>
+#include <linux/platform_data/sh_ipmmu.h>
+#include "shmobile-ipmmu.h"
+
+#define IMCTR1 0x000
+#define IMCTR2 0x004
+#define IMASID 0x010
+#define IMTTBR 0x014
+#define IMTTBCR 0x018
+
+#define IMCTR1_TLBEN (1 << 0)
+#define IMCTR1_FLUSH (1 << 1)
+
+static void ipmmu_reg_write(struct shmobile_ipmmu *ipmmu, unsigned long reg_off,
+			    unsigned long data)
+{
+	iowrite32(data, ipmmu->ipmmu_base + reg_off);
+}
+
+void ipmmu_tlb_flush(struct shmobile_ipmmu *ipmmu)
+{
+	if (!ipmmu)
+		return;
+
+	mutex_lock(&ipmmu->flush_lock);
+	if (ipmmu->tlb_enabled)
+		ipmmu_reg_write(ipmmu, IMCTR1, IMCTR1_FLUSH | IMCTR1_TLBEN);
+	else
+		ipmmu_reg_write(ipmmu, IMCTR1, IMCTR1_FLUSH);
+	mutex_unlock(&ipmmu->flush_lock);
+}
+
+void ipmmu_tlb_set(struct shmobile_ipmmu *ipmmu, unsigned long phys, int size,
+		   int asid)
+{
+	if (!ipmmu)
+		return;
+
+	mutex_lock(&ipmmu->flush_lock);
+	switch (size) {
+	default:
+		ipmmu->tlb_enabled = 0;
+		break;
+	case 0x2000:
+		ipmmu_reg_write(ipmmu, IMTTBCR, 1);
+		ipmmu->tlb_enabled = 1;
+		break;
+	case 0x1000:
+		ipmmu_reg_write(ipmmu, IMTTBCR, 2);
+		ipmmu->tlb_enabled = 1;
+		break;
+	case 0x800:
+		ipmmu_reg_write(ipmmu, IMTTBCR, 3);
+		ipmmu->tlb_enabled = 1;
+		break;
+	case 0x400:
+		ipmmu_reg_write(ipmmu, IMTTBCR, 4);
+		ipmmu->tlb_enabled = 1;
+		break;
+	case 0x200:
+		ipmmu_reg_write(ipmmu, IMTTBCR, 5);
+		ipmmu->tlb_enabled = 1;
+		break;
+	case 0x100:
+		ipmmu_reg_write(ipmmu, IMTTBCR, 6);
+		ipmmu->tlb_enabled = 1;
+		break;
+	case 0x80:
+		ipmmu_reg_write(ipmmu, IMTTBCR, 7);
+		ipmmu->tlb_enabled = 1;
+		break;
+	}
+	ipmmu_reg_write(ipmmu, IMTTBR, phys);
+	ipmmu_reg_write(ipmmu, IMASID, asid);
+	mutex_unlock(&ipmmu->flush_lock);
+}
+
+static int ipmmu_probe(struct platform_device *pdev)
+{
+	struct shmobile_ipmmu *ipmmu;
+	struct resource *res;
+	struct shmobile_ipmmu_platform_data *pdata = pdev->dev.platform_data;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res) {
+		dev_err(&pdev->dev, "cannot get platform resources\n");
+		return -ENOENT;
+	}
+	ipmmu = devm_kzalloc(&pdev->dev, sizeof(*ipmmu), GFP_KERNEL);
+	if (!ipmmu) {
+		dev_err(&pdev->dev, "cannot allocate device data\n");
+		return -ENOMEM;
+	}
+	mutex_init(&ipmmu->flush_lock);
+	ipmmu->dev = &pdev->dev;
+	ipmmu->ipmmu_base = devm_ioremap_nocache(&pdev->dev, res->start,
+						resource_size(res));
+	if (!ipmmu->ipmmu_base) {
+		dev_err(&pdev->dev, "ioremap_nocache failed\n");
+		return -ENOMEM;
+	}
+	ipmmu->dev_names = pdata->dev_names;
+	ipmmu->num_dev_names = pdata->num_dev_names;
+	platform_set_drvdata(pdev, ipmmu);
+	ipmmu_reg_write(ipmmu, IMCTR1, 0x0); /* disable TLB */
+	ipmmu_reg_write(ipmmu, IMCTR2, 0x0); /* disable PMB */
+	ipmmu_iommu_init(ipmmu);
+	return 0;
+}
+
+static struct platform_driver ipmmu_driver = {
+	.probe = ipmmu_probe,
+	.driver = {
+		.owner = THIS_MODULE,
+		.name = "ipmmu",
+	},
+};
+
+static int __init ipmmu_init(void)
+{
+	return platform_driver_register(&ipmmu_driver);
+}
+subsys_initcall(ipmmu_init);

drivers/iommu/shmobile-ipmmu.h

+/* shmobile-ipmmu.h
+ *
+ * Copyright (C) 2012  Hideki EIRAKU
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ */
+
+#ifndef __SHMOBILE_IPMMU_H__
+#define __SHMOBILE_IPMMU_H__
+
+struct shmobile_ipmmu {
+	struct device *dev;
+	void __iomem *ipmmu_base;
+	int tlb_enabled;
+	struct mutex flush_lock;
+	const char * const *dev_names;
+	unsigned int num_dev_names;
+};
+
+#ifdef CONFIG_SHMOBILE_IPMMU_TLB
+void ipmmu_tlb_flush(struct shmobile_ipmmu *ipmmu);
+void ipmmu_tlb_set(struct shmobile_ipmmu *ipmmu, unsigned long phys, int size,
+		   int asid);
+int ipmmu_iommu_init(struct shmobile_ipmmu *ipmmu);
+#else
+static inline int ipmmu_iommu_init(struct shmobile_ipmmu *ipmmu)
+{
+	return -EINVAL;
+}
+#endif
+
+#endif /* __SHMOBILE_IPMMU_H__ */

drivers/iommu/tegra-gart.c

@@ -430,13 +430,11 @@ const struct dev_pm_ops tegra_gart_pm_ops = {
 	.resume		= tegra_gart_resume,
 };
 
-#ifdef CONFIG_OF
 static struct of_device_id tegra_gart_of_match[] = {
 	{ .compatible = "nvidia,tegra20-gart", },
 	{ },
 };
 MODULE_DEVICE_TABLE(of, tegra_gart_of_match);
-#endif
 
 static struct platform_driver tegra_gart_driver = {
 	.probe		= tegra_gart_probe,
@@ -445,7 +443,7 @@ static struct platform_driver tegra_gart_driver = {
 		.owner	= THIS_MODULE,
 		.name	= "tegra-gart",
 		.pm	= &tegra_gart_pm_ops,
-		.of_match_table = of_match_ptr(tegra_gart_of_match),
+		.of_match_table = tegra_gart_of_match,
 	},
 };
 

drivers/iommu/tegra-smmu.c

 /*
  * IOMMU API for SMMU in Tegra30
  *
- * Copyright (c) 2011-2012, NVIDIA CORPORATION.  All rights reserved.
+ * Copyright (c) 2011-2013, NVIDIA CORPORATION.  All rights reserved.
  *
  * This program is free software; you can redistribute it and/or modify it
  * under the terms and conditions of the GNU General Public License,
@@ -293,7 +293,11 @@ struct smmu_debugfs_info {
  * Per SMMU device - IOMMU device
  */
 struct smmu_device {
-	void __iomem	*regs[NUM_SMMU_REG_BANKS];
+	void __iomem	*regbase;	/* register offset base */
+	void __iomem	**regs;		/* register block start address array */
+	void __iomem	**rege;		/* register block end address array */
+	int		nregs;		/* number of register blocks */
+
 	unsigned long	iovmm_base;	/* remappable base address */
 	unsigned long	page_count;	/* total remappable size */
 	spinlock_t	lock;
@@ -323,38 +327,37 @@ static struct smmu_device *smmu_handle; /* unique for a system */
 /*
  *	SMMU register accessors
  */
+static bool inline smmu_valid_reg(struct smmu_device *smmu,
+				  void __iomem *addr)
+{
+	int i;
+
+	for (i = 0; i < smmu->nregs; i++) {
+		if (addr < smmu->regs[i])
+			break;
+		if (addr <= smmu->rege[i])
+			return true;
+	}
+
+	return false;
+}
+
 static inline u32 smmu_read(struct smmu_device *smmu, size_t offs)
 {
-	BUG_ON(offs < 0x10);
-	if (offs < 0x3c)
-		return readl(smmu->regs[0] + offs - 0x10);
-	BUG_ON(offs < 0x1f0);
-	if (offs < 0x200)
-		return readl(smmu->regs[1] + offs - 0x1f0);
-	BUG_ON(offs < 0x228);
-	if (offs < 0x284)
-		return readl(smmu->regs[2] + offs - 0x228);
-	BUG();
+	void __iomem *addr = smmu->regbase + offs;
+
+	BUG_ON(!smmu_valid_reg(smmu, addr));
+
+	return readl(addr);
 }
 
 static inline void smmu_write(struct smmu_device *smmu, u32 val, size_t offs)
 {
-	BUG_ON(offs < 0x10);
-	if (offs < 0x3c) {
-		writel(val, smmu->regs[0] + offs - 0x10);
-		return;
-	}
-	BUG_ON(offs < 0x1f0);
-	if (offs < 0x200) {
-		writel(val, smmu->regs[1] + offs - 0x1f0);
-		return;
-	}
-	BUG_ON(offs < 0x228);
-	if (offs < 0x284) {
-		writel(val, smmu->regs[2] + offs - 0x228);
-		return;
-	}
-	BUG();
+	void __iomem *addr = smmu->regbase + offs;
+
+	BUG_ON(!smmu_valid_reg(smmu, addr));
+
+	writel(val, addr);
 }
 
 #define VA_PAGE_TO_PA(va, page)	\
@@ -1170,7 +1173,13 @@ static int tegra_smmu_probe(struct platform_device *pdev)
 		return -ENOMEM;
 	}
 
-	for (i = 0; i < ARRAY_SIZE(smmu->regs); i++) {
+	smmu->nregs = pdev->num_resources;
+	smmu->regs = devm_kzalloc(dev, 2 * smmu->nregs * sizeof(*smmu->regs),
+				  GFP_KERNEL);
+	smmu->rege = smmu->regs + smmu->nregs;
+	if (!smmu->regs)
+		return -ENOMEM;
+	for (i = 0; i < smmu->nregs; i++) {
 		struct resource *res;
 
 		res = platform_get_resource(pdev, IORESOURCE_MEM, i);
@@ -1179,7 +1188,10 @@ static int tegra_smmu_probe(struct platform_device *pdev)
 		smmu->regs[i] = devm_request_and_ioremap(&pdev->dev, res);
 		if (!smmu->regs[i])
 			return -EBUSY;
+		smmu->rege[i] = smmu->regs[i] + resource_size(res) - 1;
 	}
+	/* Same as "mc" 1st regiter block start address */
+	smmu->regbase = (void __iomem *)((u32)smmu->regs[0] & PAGE_MASK);
 
 	err = of_get_dma_window(dev->of_node, NULL, 0, NULL, &base, &size);
 	if (err)
@@ -1216,6 +1228,7 @@ static int tegra_smmu_probe(struct platform_device *pdev)
 		as->pte_attr = _PTE_ATTR;
 
 		spin_lock_init(&as->lock);
+		spin_lock_init(&as->client_lock);
 		INIT_LIST_HEAD(&as->client);
 	}
 	spin_lock_init(&smmu->lock);
@@ -1254,13 +1267,11 @@ const struct dev_pm_ops tegra_smmu_pm_ops = {
 	.resume		= tegra_smmu_resume,
 };
 
-#ifdef CONFIG_OF
 static struct of_device_id tegra_smmu_of_match[] = {
 	{ .compatible = "nvidia,tegra30-smmu", },
 	{ },
 };
 MODULE_DEVICE_TABLE(of, tegra_smmu_of_match);
-#endif
 
 static struct platform_driver tegra_smmu_driver = {
 	.probe		= tegra_smmu_probe,
@@ -1269,7 +1280,7 @@ static struct platform_driver tegra_smmu_driver = {
 		.owner	= THIS_MODULE,
 		.name	= "tegra-smmu",
 		.pm	= &tegra_smmu_pm_ops,
-		.of_match_table = of_match_ptr(tegra_smmu_of_match),
+		.of_match_table = tegra_smmu_of_match,
 	},
 };
 

include/linux/iommu.h

@@ -58,8 +58,10 @@ struct iommu_domain {
 #define IOMMU_CAP_INTR_REMAP		0x2	/* isolates device intrs */
 
 enum iommu_attr {
-	DOMAIN_ATTR_MAX,
 	DOMAIN_ATTR_GEOMETRY,
+	DOMAIN_ATTR_PAGING,
+	DOMAIN_ATTR_WINDOWS,
+	DOMAIN_ATTR_MAX,
 };
 
 #ifdef CONFIG_IOMMU_API
@@ -100,6 +102,16 @@ struct iommu_ops {
 			       enum iommu_attr attr, void *data);
 	int (*domain_set_attr)(struct iommu_domain *domain,
 			       enum iommu_attr attr, void *data);
+
+	/* Window handling functions */
+	int (*domain_window_enable)(struct iommu_domain *domain, u32 wnd_nr,
+				    phys_addr_t paddr, u64 size);
+	void (*domain_window_disable)(struct iommu_domain *domain, u32 wnd_nr);
+	/* Set the numer of window per domain */
+	int (*domain_set_windows)(struct iommu_domain *domain, u32 w_count);
+	/* Get the numer of window per domain */
+	u32 (*domain_get_windows)(struct iommu_domain *domain);
+
 	unsigned long pgsize_bitmap;
 };
 
@@ -157,6 +169,10 @@ extern int iommu_domain_get_attr(struct iommu_domain *domain, enum iommu_attr,
 extern int iommu_domain_set_attr(struct iommu_domain *domain, enum iommu_attr,
 				 void *data);
 
+/* Window handling function prototypes */
+extern int iommu_domain_window_enable(struct iommu_domain *domain, u32 wnd_nr,
+				      phys_addr_t offset, u64 size);
+extern void iommu_domain_window_disable(struct iommu_domain *domain, u32 wnd_nr);
 /**
  * report_iommu_fault() - report about an IOMMU fault to the IOMMU framework
  * @domain: the iommu domain where the fault has happened
@@ -239,6 +255,18 @@ static inline int iommu_unmap(struct iommu_domain *domain, unsigned long iova,
 	return -ENODEV;
 }
 
+static inline int iommu_domain_window_enable(struct iommu_domain *domain,
+					     u32 wnd_nr, phys_addr_t paddr,
+					     u64 size)
+{
+	return -ENODEV;
+}
+
+static inline void iommu_domain_window_disable(struct iommu_domain *domain,
+					       u32 wnd_nr)
+{
+}
+
 static inline phys_addr_t iommu_iova_to_phys(struct iommu_domain *domain,
 					     unsigned long iova)
 {

include/linux/platform_data/sh_ipmmu.h

+/* sh_ipmmu.h
+ *
+ * Copyright (C) 2012  Hideki EIRAKU
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; version 2 of the License.
+ */
+
+#ifndef __SH_IPMMU_H__
+#define __SH_IPMMU_H__
+
+struct shmobile_ipmmu_platform_data {
+	const char * const *dev_names;
+	unsigned int num_dev_names;
+};
+
+#endif /* __SH_IPMMU_H__ */