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authorOlof Johansson <olof@lixom.net>2012-11-30 21:40:59 -0800
committerOlof Johansson <olof@lixom.net>2012-11-30 21:40:59 -0800
commit8556650dd3370a927217f16444aac5cc0c71e61b (patch)
treea392b07b5d72a6522d3d5f1561b8fe2b64ca8021 /arch
parentfbac7d7d6c1f873c89d88ca6ab8a2891ac837796 (diff)
parent2ab7c84815cffd5fe4946a472fc67fefa8ac3c29 (diff)
downloadtalos-obmc-linux-8556650dd3370a927217f16444aac5cc0c71e61b.tar.gz
talos-obmc-linux-8556650dd3370a927217f16444aac5cc0c71e61b.zip
Merge tag 'omap-for-v3.8/cleanup-headers-iommu-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into next/headers
From Tony Lindgren: Move most of remaining omap iommu code to drivers/iommu. This is needed for the multiplatform kernels as the plat and mach headers cannot be included. These changes were agreed to be merged via the arm-soc tree by Joerg and Ohad as these will cause some merge conflicts with the other related clean-up branches. So omap-for-v3.8/cleanup-headers-iommu should be added as one of the depends branches for arm-soc. * tag 'omap-for-v3.8/cleanup-headers-iommu-signed' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap: ARM: OMAP2+: Move iommu/iovmm headers to platform_data ARM: OMAP2+: Make some definitions local ARM: OMAP2+: Move iommu2 to drivers/iommu/omap-iommu2.c ARM: OMAP2+: Move plat/iovmm.h to include/linux/omap-iommu.h ARM: OMAP2+: Move iopgtable header to drivers/iommu/ ARM: OMAP: Merge iommu2.h into iommu.h Conflicts due to surrounding changes in: arch/arm/mach-omap2/omap_hwmod_44xx_data.c drivers/media/platform/omap3isp/ispvideo.c Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'arch')
-rw-r--r--arch/arm/mach-omap2/Makefile2
-rw-r--r--arch/arm/mach-omap2/devices.c2
-rw-r--r--arch/arm/mach-omap2/iommu2.c361
-rw-r--r--arch/arm/mach-omap2/omap-iommu.c2
-rw-r--r--arch/arm/mach-omap2/omap_hwmod_3xxx_data.c2
-rw-r--r--arch/arm/mach-omap2/omap_hwmod_44xx_data.c2
-rw-r--r--arch/arm/plat-omap/include/plat/iommu.h221
-rw-r--r--arch/arm/plat-omap/include/plat/iommu2.h96
-rw-r--r--arch/arm/plat-omap/include/plat/iopgtable.h120
-rw-r--r--arch/arm/plat-omap/include/plat/iovmm.h89
10 files changed, 4 insertions, 893 deletions
diff --git a/arch/arm/mach-omap2/Makefile b/arch/arm/mach-omap2/Makefile
index c94d495b8d95..d5e834a9075d 100644
--- a/arch/arm/mach-omap2/Makefile
+++ b/arch/arm/mach-omap2/Makefile
@@ -196,8 +196,6 @@ obj-$(CONFIG_HW_PERF_EVENTS) += pmu.o
obj-$(CONFIG_OMAP_MBOX_FWK) += mailbox_mach.o
mailbox_mach-objs := mailbox.o
-obj-$(CONFIG_OMAP_IOMMU) += iommu2.o
-
iommu-$(CONFIG_OMAP_IOMMU) := omap-iommu.o
obj-y += $(iommu-m) $(iommu-y)
diff --git a/arch/arm/mach-omap2/devices.c b/arch/arm/mach-omap2/devices.c
index 2ad491d6910b..9adbdc846ceb 100644
--- a/arch/arm/mach-omap2/devices.c
+++ b/arch/arm/mach-omap2/devices.c
@@ -128,7 +128,7 @@ static struct platform_device omap2cam_device = {
#if defined(CONFIG_IOMMU_API)
-#include <plat/iommu.h>
+#include <linux/platform_data/iommu-omap.h>
static struct resource omap3isp_resources[] = {
{
diff --git a/arch/arm/mach-omap2/iommu2.c b/arch/arm/mach-omap2/iommu2.c
deleted file mode 100644
index eefc37912ef3..000000000000
--- a/arch/arm/mach-omap2/iommu2.c
+++ /dev/null
@@ -1,361 +0,0 @@
-/*
- * omap iommu: omap2/3 architecture specific functions
- *
- * Copyright (C) 2008-2009 Nokia Corporation
- *
- * Written by Hiroshi DOYU <Hiroshi.DOYU@nokia.com>,
- * Paul Mundt and Toshihiro Kobayashi
- *
- * 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/err.h>
-#include <linux/device.h>
-#include <linux/jiffies.h>
-#include <linux/module.h>
-#include <linux/slab.h>
-#include <linux/stringify.h>
-
-#include <plat/iommu.h>
-
-/*
- * omap2 architecture specific register bit definitions
- */
-#define IOMMU_ARCH_VERSION 0x00000011
-
-/* SYSCONF */
-#define MMU_SYS_IDLE_SHIFT 3
-#define MMU_SYS_IDLE_FORCE (0 << MMU_SYS_IDLE_SHIFT)
-#define MMU_SYS_IDLE_NONE (1 << MMU_SYS_IDLE_SHIFT)
-#define MMU_SYS_IDLE_SMART (2 << MMU_SYS_IDLE_SHIFT)
-#define MMU_SYS_IDLE_MASK (3 << MMU_SYS_IDLE_SHIFT)
-
-#define MMU_SYS_SOFTRESET (1 << 1)
-#define MMU_SYS_AUTOIDLE 1
-
-/* SYSSTATUS */
-#define MMU_SYS_RESETDONE 1
-
-/* IRQSTATUS & IRQENABLE */
-#define MMU_IRQ_MULTIHITFAULT (1 << 4)
-#define MMU_IRQ_TABLEWALKFAULT (1 << 3)
-#define MMU_IRQ_EMUMISS (1 << 2)
-#define MMU_IRQ_TRANSLATIONFAULT (1 << 1)
-#define MMU_IRQ_TLBMISS (1 << 0)
-
-#define __MMU_IRQ_FAULT \
- (MMU_IRQ_MULTIHITFAULT | MMU_IRQ_EMUMISS | MMU_IRQ_TRANSLATIONFAULT)
-#define MMU_IRQ_MASK \
- (__MMU_IRQ_FAULT | MMU_IRQ_TABLEWALKFAULT | MMU_IRQ_TLBMISS)
-#define MMU_IRQ_TWL_MASK (__MMU_IRQ_FAULT | MMU_IRQ_TABLEWALKFAULT)
-#define MMU_IRQ_TLB_MISS_MASK (__MMU_IRQ_FAULT | MMU_IRQ_TLBMISS)
-
-/* MMU_CNTL */
-#define MMU_CNTL_SHIFT 1
-#define MMU_CNTL_MASK (7 << MMU_CNTL_SHIFT)
-#define MMU_CNTL_EML_TLB (1 << 3)
-#define MMU_CNTL_TWL_EN (1 << 2)
-#define MMU_CNTL_MMU_EN (1 << 1)
-
-#define get_cam_va_mask(pgsz) \
- (((pgsz) == MMU_CAM_PGSZ_16M) ? 0xff000000 : \
- ((pgsz) == MMU_CAM_PGSZ_1M) ? 0xfff00000 : \
- ((pgsz) == MMU_CAM_PGSZ_64K) ? 0xffff0000 : \
- ((pgsz) == MMU_CAM_PGSZ_4K) ? 0xfffff000 : 0)
-
-
-static void __iommu_set_twl(struct omap_iommu *obj, bool on)
-{
- u32 l = iommu_read_reg(obj, MMU_CNTL);
-
- if (on)
- iommu_write_reg(obj, MMU_IRQ_TWL_MASK, MMU_IRQENABLE);
- else
- iommu_write_reg(obj, MMU_IRQ_TLB_MISS_MASK, MMU_IRQENABLE);
-
- l &= ~MMU_CNTL_MASK;
- if (on)
- l |= (MMU_CNTL_MMU_EN | MMU_CNTL_TWL_EN);
- else
- l |= (MMU_CNTL_MMU_EN);
-
- iommu_write_reg(obj, l, MMU_CNTL);
-}
-
-
-static int omap2_iommu_enable(struct omap_iommu *obj)
-{
- u32 l, pa;
- unsigned long timeout;
-
- if (!obj->iopgd || !IS_ALIGNED((u32)obj->iopgd, SZ_16K))
- return -EINVAL;
-
- pa = virt_to_phys(obj->iopgd);
- if (!IS_ALIGNED(pa, SZ_16K))
- return -EINVAL;
-
- iommu_write_reg(obj, MMU_SYS_SOFTRESET, MMU_SYSCONFIG);
-
- timeout = jiffies + msecs_to_jiffies(20);
- do {
- l = iommu_read_reg(obj, MMU_SYSSTATUS);
- if (l & MMU_SYS_RESETDONE)
- break;
- } while (!time_after(jiffies, timeout));
-
- if (!(l & MMU_SYS_RESETDONE)) {
- dev_err(obj->dev, "can't take mmu out of reset\n");
- return -ENODEV;
- }
-
- l = iommu_read_reg(obj, MMU_REVISION);
- dev_info(obj->dev, "%s: version %d.%d\n", obj->name,
- (l >> 4) & 0xf, l & 0xf);
-
- l = iommu_read_reg(obj, MMU_SYSCONFIG);
- l &= ~MMU_SYS_IDLE_MASK;
- l |= (MMU_SYS_IDLE_SMART | MMU_SYS_AUTOIDLE);
- iommu_write_reg(obj, l, MMU_SYSCONFIG);
-
- iommu_write_reg(obj, pa, MMU_TTB);
-
- __iommu_set_twl(obj, true);
-
- return 0;
-}
-
-static void omap2_iommu_disable(struct omap_iommu *obj)
-{
- u32 l = iommu_read_reg(obj, MMU_CNTL);
-
- l &= ~MMU_CNTL_MASK;
- iommu_write_reg(obj, l, MMU_CNTL);
- iommu_write_reg(obj, MMU_SYS_IDLE_FORCE, MMU_SYSCONFIG);
-
- dev_dbg(obj->dev, "%s is shutting down\n", obj->name);
-}
-
-static void omap2_iommu_set_twl(struct omap_iommu *obj, bool on)
-{
- __iommu_set_twl(obj, false);
-}
-
-static u32 omap2_iommu_fault_isr(struct omap_iommu *obj, u32 *ra)
-{
- u32 stat, da;
- u32 errs = 0;
-
- stat = iommu_read_reg(obj, MMU_IRQSTATUS);
- stat &= MMU_IRQ_MASK;
- if (!stat) {
- *ra = 0;
- return 0;
- }
-
- da = iommu_read_reg(obj, MMU_FAULT_AD);
- *ra = da;
-
- if (stat & MMU_IRQ_TLBMISS)
- errs |= OMAP_IOMMU_ERR_TLB_MISS;
- if (stat & MMU_IRQ_TRANSLATIONFAULT)
- errs |= OMAP_IOMMU_ERR_TRANS_FAULT;
- if (stat & MMU_IRQ_EMUMISS)
- errs |= OMAP_IOMMU_ERR_EMU_MISS;
- if (stat & MMU_IRQ_TABLEWALKFAULT)
- errs |= OMAP_IOMMU_ERR_TBLWALK_FAULT;
- if (stat & MMU_IRQ_MULTIHITFAULT)
- errs |= OMAP_IOMMU_ERR_MULTIHIT_FAULT;
- iommu_write_reg(obj, stat, MMU_IRQSTATUS);
-
- return errs;
-}
-
-static void omap2_tlb_read_cr(struct omap_iommu *obj, struct cr_regs *cr)
-{
- cr->cam = iommu_read_reg(obj, MMU_READ_CAM);
- cr->ram = iommu_read_reg(obj, MMU_READ_RAM);
-}
-
-static void omap2_tlb_load_cr(struct omap_iommu *obj, struct cr_regs *cr)
-{
- iommu_write_reg(obj, cr->cam | MMU_CAM_V, MMU_CAM);
- iommu_write_reg(obj, cr->ram, MMU_RAM);
-}
-
-static u32 omap2_cr_to_virt(struct cr_regs *cr)
-{
- u32 page_size = cr->cam & MMU_CAM_PGSZ_MASK;
- u32 mask = get_cam_va_mask(cr->cam & page_size);
-
- return cr->cam & mask;
-}
-
-static struct cr_regs *omap2_alloc_cr(struct omap_iommu *obj,
- struct iotlb_entry *e)
-{
- struct cr_regs *cr;
-
- if (e->da & ~(get_cam_va_mask(e->pgsz))) {
- dev_err(obj->dev, "%s:\twrong alignment: %08x\n", __func__,
- e->da);
- return ERR_PTR(-EINVAL);
- }
-
- cr = kmalloc(sizeof(*cr), GFP_KERNEL);
- if (!cr)
- return ERR_PTR(-ENOMEM);
-
- cr->cam = (e->da & MMU_CAM_VATAG_MASK) | e->prsvd | e->pgsz | e->valid;
- cr->ram = e->pa | e->endian | e->elsz | e->mixed;
-
- return cr;
-}
-
-static inline int omap2_cr_valid(struct cr_regs *cr)
-{
- return cr->cam & MMU_CAM_V;
-}
-
-static u32 omap2_get_pte_attr(struct iotlb_entry *e)
-{
- u32 attr;
-
- attr = e->mixed << 5;
- attr |= e->endian;
- attr |= e->elsz >> 3;
- attr <<= (((e->pgsz == MMU_CAM_PGSZ_4K) ||
- (e->pgsz == MMU_CAM_PGSZ_64K)) ? 0 : 6);
- return attr;
-}
-
-static ssize_t
-omap2_dump_cr(struct omap_iommu *obj, struct cr_regs *cr, char *buf)
-{
- char *p = buf;
-
- /* FIXME: Need more detail analysis of cam/ram */
- p += sprintf(p, "%08x %08x %01x\n", cr->cam, cr->ram,
- (cr->cam & MMU_CAM_P) ? 1 : 0);
-
- return p - buf;
-}
-
-#define pr_reg(name) \
- do { \
- ssize_t bytes; \
- const char *str = "%20s: %08x\n"; \
- const int maxcol = 32; \
- bytes = snprintf(p, maxcol, str, __stringify(name), \
- iommu_read_reg(obj, MMU_##name)); \
- p += bytes; \
- len -= bytes; \
- if (len < maxcol) \
- goto out; \
- } while (0)
-
-static ssize_t
-omap2_iommu_dump_ctx(struct omap_iommu *obj, char *buf, ssize_t len)
-{
- char *p = buf;
-
- pr_reg(REVISION);
- pr_reg(SYSCONFIG);
- pr_reg(SYSSTATUS);
- pr_reg(IRQSTATUS);
- pr_reg(IRQENABLE);
- pr_reg(WALKING_ST);
- pr_reg(CNTL);
- pr_reg(FAULT_AD);
- pr_reg(TTB);
- pr_reg(LOCK);
- pr_reg(LD_TLB);
- pr_reg(CAM);
- pr_reg(RAM);
- pr_reg(GFLUSH);
- pr_reg(FLUSH_ENTRY);
- pr_reg(READ_CAM);
- pr_reg(READ_RAM);
- pr_reg(EMU_FAULT_AD);
-out:
- return p - buf;
-}
-
-static void omap2_iommu_save_ctx(struct omap_iommu *obj)
-{
- int i;
- u32 *p = obj->ctx;
-
- for (i = 0; i < (MMU_REG_SIZE / sizeof(u32)); i++) {
- p[i] = iommu_read_reg(obj, i * sizeof(u32));
- dev_dbg(obj->dev, "%s\t[%02d] %08x\n", __func__, i, p[i]);
- }
-
- BUG_ON(p[0] != IOMMU_ARCH_VERSION);
-}
-
-static void omap2_iommu_restore_ctx(struct omap_iommu *obj)
-{
- int i;
- u32 *p = obj->ctx;
-
- for (i = 0; i < (MMU_REG_SIZE / sizeof(u32)); i++) {
- iommu_write_reg(obj, p[i], i * sizeof(u32));
- dev_dbg(obj->dev, "%s\t[%02d] %08x\n", __func__, i, p[i]);
- }
-
- BUG_ON(p[0] != IOMMU_ARCH_VERSION);
-}
-
-static void omap2_cr_to_e(struct cr_regs *cr, struct iotlb_entry *e)
-{
- e->da = cr->cam & MMU_CAM_VATAG_MASK;
- e->pa = cr->ram & MMU_RAM_PADDR_MASK;
- e->valid = cr->cam & MMU_CAM_V;
- e->pgsz = cr->cam & MMU_CAM_PGSZ_MASK;
- e->endian = cr->ram & MMU_RAM_ENDIAN_MASK;
- e->elsz = cr->ram & MMU_RAM_ELSZ_MASK;
- e->mixed = cr->ram & MMU_RAM_MIXED;
-}
-
-static const struct iommu_functions omap2_iommu_ops = {
- .version = IOMMU_ARCH_VERSION,
-
- .enable = omap2_iommu_enable,
- .disable = omap2_iommu_disable,
- .set_twl = omap2_iommu_set_twl,
- .fault_isr = omap2_iommu_fault_isr,
-
- .tlb_read_cr = omap2_tlb_read_cr,
- .tlb_load_cr = omap2_tlb_load_cr,
-
- .cr_to_e = omap2_cr_to_e,
- .cr_to_virt = omap2_cr_to_virt,
- .alloc_cr = omap2_alloc_cr,
- .cr_valid = omap2_cr_valid,
- .dump_cr = omap2_dump_cr,
-
- .get_pte_attr = omap2_get_pte_attr,
-
- .save_ctx = omap2_iommu_save_ctx,
- .restore_ctx = omap2_iommu_restore_ctx,
- .dump_ctx = omap2_iommu_dump_ctx,
-};
-
-static int __init omap2_iommu_init(void)
-{
- return omap_install_iommu_arch(&omap2_iommu_ops);
-}
-module_init(omap2_iommu_init);
-
-static void __exit omap2_iommu_exit(void)
-{
- omap_uninstall_iommu_arch(&omap2_iommu_ops);
-}
-module_exit(omap2_iommu_exit);
-
-MODULE_AUTHOR("Hiroshi DOYU, Paul Mundt and Toshihiro Kobayashi");
-MODULE_DESCRIPTION("omap iommu: omap2/3 architecture specific functions");
-MODULE_LICENSE("GPL v2");
diff --git a/arch/arm/mach-omap2/omap-iommu.c b/arch/arm/mach-omap2/omap-iommu.c
index df298d46707c..a6a4ff8744b7 100644
--- a/arch/arm/mach-omap2/omap-iommu.c
+++ b/arch/arm/mach-omap2/omap-iommu.c
@@ -13,7 +13,7 @@
#include <linux/module.h>
#include <linux/platform_device.h>
-#include <plat/iommu.h>
+#include <linux/platform_data/iommu-omap.h>
#include "soc.h"
#include "common.h"
diff --git a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
index abe66ced903f..1150f823f24e 100644
--- a/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_3xxx_data.c
@@ -24,8 +24,8 @@
#include "l4_3xxx.h"
#include <linux/platform_data/asoc-ti-mcbsp.h>
#include <linux/platform_data/spi-omap2-mcspi.h>
+#include <linux/platform_data/iommu-omap.h>
#include <plat/dmtimer.h>
-#include <plat/iommu.h>
#include "am35xx.h"
diff --git a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
index 7a6132848f5d..224bbaf73f32 100644
--- a/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
+++ b/arch/arm/mach-omap2/omap_hwmod_44xx_data.c
@@ -27,8 +27,8 @@
#include <linux/platform_data/spi-omap2-mcspi.h>
#include <linux/platform_data/asoc-ti-mcbsp.h>
+#include <linux/platform_data/iommu-omap.h>
#include <plat/dmtimer.h>
-#include <plat/iommu.h>
#include "omap_hwmod.h"
#include "omap_hwmod_common_data.h"
diff --git a/arch/arm/plat-omap/include/plat/iommu.h b/arch/arm/plat-omap/include/plat/iommu.h
deleted file mode 100644
index 68b5f0362f35..000000000000
--- a/arch/arm/plat-omap/include/plat/iommu.h
+++ /dev/null
@@ -1,221 +0,0 @@
-/*
- * omap iommu: main structures
- *
- * Copyright (C) 2008-2009 Nokia Corporation
- *
- * Written by Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
- *
- * 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 __MACH_IOMMU_H
-#define __MACH_IOMMU_H
-
-struct iotlb_entry {
- u32 da;
- u32 pa;
- u32 pgsz, prsvd, valid;
- union {
- u16 ap;
- struct {
- u32 endian, elsz, mixed;
- };
- };
-};
-
-struct omap_iommu {
- const char *name;
- struct module *owner;
- struct clk *clk;
- void __iomem *regbase;
- struct device *dev;
- void *isr_priv;
- struct iommu_domain *domain;
-
- unsigned int refcount;
- spinlock_t iommu_lock; /* global for this whole object */
-
- /*
- * We don't change iopgd for a situation like pgd for a task,
- * but share it globally for each iommu.
- */
- u32 *iopgd;
- spinlock_t page_table_lock; /* protect iopgd */
-
- int nr_tlb_entries;
-
- struct list_head mmap;
- struct mutex mmap_lock; /* protect mmap */
-
- void *ctx; /* iommu context: registres saved area */
- u32 da_start;
- u32 da_end;
-};
-
-struct cr_regs {
- union {
- struct {
- u16 cam_l;
- u16 cam_h;
- };
- u32 cam;
- };
- union {
- struct {
- u16 ram_l;
- u16 ram_h;
- };
- u32 ram;
- };
-};
-
-struct iotlb_lock {
- short base;
- short vict;
-};
-
-/* architecture specific functions */
-struct iommu_functions {
- unsigned long version;
-
- int (*enable)(struct omap_iommu *obj);
- void (*disable)(struct omap_iommu *obj);
- void (*set_twl)(struct omap_iommu *obj, bool on);
- u32 (*fault_isr)(struct omap_iommu *obj, u32 *ra);
-
- void (*tlb_read_cr)(struct omap_iommu *obj, struct cr_regs *cr);
- void (*tlb_load_cr)(struct omap_iommu *obj, struct cr_regs *cr);
-
- struct cr_regs *(*alloc_cr)(struct omap_iommu *obj,
- struct iotlb_entry *e);
- int (*cr_valid)(struct cr_regs *cr);
- u32 (*cr_to_virt)(struct cr_regs *cr);
- void (*cr_to_e)(struct cr_regs *cr, struct iotlb_entry *e);
- ssize_t (*dump_cr)(struct omap_iommu *obj, struct cr_regs *cr,
- char *buf);
-
- u32 (*get_pte_attr)(struct iotlb_entry *e);
-
- void (*save_ctx)(struct omap_iommu *obj);
- void (*restore_ctx)(struct omap_iommu *obj);
- ssize_t (*dump_ctx)(struct omap_iommu *obj, char *buf, ssize_t len);
-};
-
-/**
- * struct omap_mmu_dev_attr - OMAP mmu device attributes for omap_hwmod
- * @da_start: device address where the va space starts.
- * @da_end: device address where the va space ends.
- * @nr_tlb_entries: number of entries supported by the translation
- * look-aside buffer (TLB).
- */
-struct omap_mmu_dev_attr {
- u32 da_start;
- u32 da_end;
- int nr_tlb_entries;
-};
-
-struct iommu_platform_data {
- const char *name;
- const char *clk_name;
- const int nr_tlb_entries;
- u32 da_start;
- u32 da_end;
-};
-
-/**
- * struct iommu_arch_data - omap iommu private data
- * @name: name of the iommu device
- * @iommu_dev: handle of the iommu device
- *
- * This is an omap iommu private data object, which binds an iommu user
- * to its iommu device. This object should be placed at the iommu user's
- * dev_archdata so generic IOMMU API can be used without having to
- * utilize omap-specific plumbing anymore.
- */
-struct omap_iommu_arch_data {
- const char *name;
- struct omap_iommu *iommu_dev;
-};
-
-#ifdef CONFIG_IOMMU_API
-/**
- * dev_to_omap_iommu() - retrieves an omap iommu object from a user device
- * @dev: iommu client device
- */
-static inline struct omap_iommu *dev_to_omap_iommu(struct device *dev)
-{
- struct omap_iommu_arch_data *arch_data = dev->archdata.iommu;
-
- return arch_data->iommu_dev;
-}
-#endif
-
-/* IOMMU errors */
-#define OMAP_IOMMU_ERR_TLB_MISS (1 << 0)
-#define OMAP_IOMMU_ERR_TRANS_FAULT (1 << 1)
-#define OMAP_IOMMU_ERR_EMU_MISS (1 << 2)
-#define OMAP_IOMMU_ERR_TBLWALK_FAULT (1 << 3)
-#define OMAP_IOMMU_ERR_MULTIHIT_FAULT (1 << 4)
-
-#if defined(CONFIG_ARCH_OMAP1)
-#error "iommu for this processor not implemented yet"
-#else
-#include <plat/iommu2.h>
-#endif
-
-/*
- * utilities for super page(16MB, 1MB, 64KB and 4KB)
- */
-
-#define iopgsz_max(bytes) \
- (((bytes) >= SZ_16M) ? SZ_16M : \
- ((bytes) >= SZ_1M) ? SZ_1M : \
- ((bytes) >= SZ_64K) ? SZ_64K : \
- ((bytes) >= SZ_4K) ? SZ_4K : 0)
-
-#define bytes_to_iopgsz(bytes) \
- (((bytes) == SZ_16M) ? MMU_CAM_PGSZ_16M : \
- ((bytes) == SZ_1M) ? MMU_CAM_PGSZ_1M : \
- ((bytes) == SZ_64K) ? MMU_CAM_PGSZ_64K : \
- ((bytes) == SZ_4K) ? MMU_CAM_PGSZ_4K : -1)
-
-#define iopgsz_to_bytes(iopgsz) \
- (((iopgsz) == MMU_CAM_PGSZ_16M) ? SZ_16M : \
- ((iopgsz) == MMU_CAM_PGSZ_1M) ? SZ_1M : \
- ((iopgsz) == MMU_CAM_PGSZ_64K) ? SZ_64K : \
- ((iopgsz) == MMU_CAM_PGSZ_4K) ? SZ_4K : 0)
-
-#define iopgsz_ok(bytes) (bytes_to_iopgsz(bytes) >= 0)
-
-/*
- * global functions
- */
-extern u32 omap_iommu_arch_version(void);
-
-extern void omap_iotlb_cr_to_e(struct cr_regs *cr, struct iotlb_entry *e);
-
-extern int
-omap_iopgtable_store_entry(struct omap_iommu *obj, struct iotlb_entry *e);
-
-extern int omap_iommu_set_isr(const char *name,
- int (*isr)(struct omap_iommu *obj, u32 da, u32 iommu_errs,
- void *priv),
- void *isr_priv);
-
-extern void omap_iommu_save_ctx(struct device *dev);
-extern void omap_iommu_restore_ctx(struct device *dev);
-
-extern int omap_install_iommu_arch(const struct iommu_functions *ops);
-extern void omap_uninstall_iommu_arch(const struct iommu_functions *ops);
-
-extern int omap_foreach_iommu_device(void *data,
- int (*fn)(struct device *, void *));
-
-extern ssize_t
-omap_iommu_dump_ctx(struct omap_iommu *obj, char *buf, ssize_t len);
-extern size_t
-omap_dump_tlb_entries(struct omap_iommu *obj, char *buf, ssize_t len);
-
-#endif /* __MACH_IOMMU_H */
diff --git a/arch/arm/plat-omap/include/plat/iommu2.h b/arch/arm/plat-omap/include/plat/iommu2.h
deleted file mode 100644
index d4116b595e40..000000000000
--- a/arch/arm/plat-omap/include/plat/iommu2.h
+++ /dev/null
@@ -1,96 +0,0 @@
-/*
- * omap iommu: omap2 architecture specific definitions
- *
- * Copyright (C) 2008-2009 Nokia Corporation
- *
- * Written by Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
- *
- * 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 __MACH_IOMMU2_H
-#define __MACH_IOMMU2_H
-
-#include <linux/io.h>
-
-/*
- * MMU Register offsets
- */
-#define MMU_REVISION 0x00
-#define MMU_SYSCONFIG 0x10
-#define MMU_SYSSTATUS 0x14
-#define MMU_IRQSTATUS 0x18
-#define MMU_IRQENABLE 0x1c
-#define MMU_WALKING_ST 0x40
-#define MMU_CNTL 0x44
-#define MMU_FAULT_AD 0x48
-#define MMU_TTB 0x4c
-#define MMU_LOCK 0x50
-#define MMU_LD_TLB 0x54
-#define MMU_CAM 0x58
-#define MMU_RAM 0x5c
-#define MMU_GFLUSH 0x60
-#define MMU_FLUSH_ENTRY 0x64
-#define MMU_READ_CAM 0x68
-#define MMU_READ_RAM 0x6c
-#define MMU_EMU_FAULT_AD 0x70
-
-#define MMU_REG_SIZE 256
-
-/*
- * MMU Register bit definitions
- */
-#define MMU_LOCK_BASE_SHIFT 10
-#define MMU_LOCK_BASE_MASK (0x1f << MMU_LOCK_BASE_SHIFT)
-#define MMU_LOCK_BASE(x) \
- ((x & MMU_LOCK_BASE_MASK) >> MMU_LOCK_BASE_SHIFT)
-
-#define MMU_LOCK_VICT_SHIFT 4
-#define MMU_LOCK_VICT_MASK (0x1f << MMU_LOCK_VICT_SHIFT)
-#define MMU_LOCK_VICT(x) \
- ((x & MMU_LOCK_VICT_MASK) >> MMU_LOCK_VICT_SHIFT)
-
-#define MMU_CAM_VATAG_SHIFT 12
-#define MMU_CAM_VATAG_MASK \
- ((~0UL >> MMU_CAM_VATAG_SHIFT) << MMU_CAM_VATAG_SHIFT)
-#define MMU_CAM_P (1 << 3)
-#define MMU_CAM_V (1 << 2)
-#define MMU_CAM_PGSZ_MASK 3
-#define MMU_CAM_PGSZ_1M (0 << 0)
-#define MMU_CAM_PGSZ_64K (1 << 0)
-#define MMU_CAM_PGSZ_4K (2 << 0)
-#define MMU_CAM_PGSZ_16M (3 << 0)
-
-#define MMU_RAM_PADDR_SHIFT 12
-#define MMU_RAM_PADDR_MASK \
- ((~0UL >> MMU_RAM_PADDR_SHIFT) << MMU_RAM_PADDR_SHIFT)
-#define MMU_RAM_ENDIAN_SHIFT 9
-#define MMU_RAM_ENDIAN_MASK (1 << MMU_RAM_ENDIAN_SHIFT)
-#define MMU_RAM_ENDIAN_BIG (1 << MMU_RAM_ENDIAN_SHIFT)
-#define MMU_RAM_ENDIAN_LITTLE (0 << MMU_RAM_ENDIAN_SHIFT)
-#define MMU_RAM_ELSZ_SHIFT 7
-#define MMU_RAM_ELSZ_MASK (3 << MMU_RAM_ELSZ_SHIFT)
-#define MMU_RAM_ELSZ_8 (0 << MMU_RAM_ELSZ_SHIFT)
-#define MMU_RAM_ELSZ_16 (1 << MMU_RAM_ELSZ_SHIFT)
-#define MMU_RAM_ELSZ_32 (2 << MMU_RAM_ELSZ_SHIFT)
-#define MMU_RAM_ELSZ_NONE (3 << MMU_RAM_ELSZ_SHIFT)
-#define MMU_RAM_MIXED_SHIFT 6
-#define MMU_RAM_MIXED_MASK (1 << MMU_RAM_MIXED_SHIFT)
-#define MMU_RAM_MIXED MMU_RAM_MIXED_MASK
-
-/*
- * register accessors
- */
-static inline u32 iommu_read_reg(struct omap_iommu *obj, size_t offs)
-{
- return __raw_readl(obj->regbase + offs);
-}
-
-static inline void iommu_write_reg(struct omap_iommu *obj, u32 val, size_t offs)
-{
- __raw_writel(val, obj->regbase + offs);
-}
-
-#endif /* __MACH_IOMMU2_H */
diff --git a/arch/arm/plat-omap/include/plat/iopgtable.h b/arch/arm/plat-omap/include/plat/iopgtable.h
deleted file mode 100644
index 66a813977d52..000000000000
--- a/arch/arm/plat-omap/include/plat/iopgtable.h
+++ /dev/null
@@ -1,120 +0,0 @@
-/*
- * omap iommu: pagetable definitions
- *
- * Copyright (C) 2008-2010 Nokia Corporation
- *
- * Written by Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
- *
- * 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 __PLAT_OMAP_IOMMU_H
-#define __PLAT_OMAP_IOMMU_H
-
-/*
- * "L2 table" address mask and size definitions.
- */
-#define IOPGD_SHIFT 20
-#define IOPGD_SIZE (1UL << IOPGD_SHIFT)
-#define IOPGD_MASK (~(IOPGD_SIZE - 1))
-
-/*
- * "section" address mask and size definitions.
- */
-#define IOSECTION_SHIFT 20
-#define IOSECTION_SIZE (1UL << IOSECTION_SHIFT)
-#define IOSECTION_MASK (~(IOSECTION_SIZE - 1))
-
-/*
- * "supersection" address mask and size definitions.
- */
-#define IOSUPER_SHIFT 24
-#define IOSUPER_SIZE (1UL << IOSUPER_SHIFT)
-#define IOSUPER_MASK (~(IOSUPER_SIZE - 1))
-
-#define PTRS_PER_IOPGD (1UL << (32 - IOPGD_SHIFT))
-#define IOPGD_TABLE_SIZE (PTRS_PER_IOPGD * sizeof(u32))
-
-/*
- * "small page" address mask and size definitions.
- */
-#define IOPTE_SHIFT 12
-#define IOPTE_SIZE (1UL << IOPTE_SHIFT)
-#define IOPTE_MASK (~(IOPTE_SIZE - 1))
-
-/*
- * "large page" address mask and size definitions.
- */
-#define IOLARGE_SHIFT 16
-#define IOLARGE_SIZE (1UL << IOLARGE_SHIFT)
-#define IOLARGE_MASK (~(IOLARGE_SIZE - 1))
-
-#define PTRS_PER_IOPTE (1UL << (IOPGD_SHIFT - IOPTE_SHIFT))
-#define IOPTE_TABLE_SIZE (PTRS_PER_IOPTE * sizeof(u32))
-
-#define IOPAGE_MASK IOPTE_MASK
-
-/**
- * omap_iommu_translate() - va to pa translation
- * @d: omap iommu descriptor
- * @va: virtual address
- * @mask: omap iommu descriptor mask
- *
- * va to pa translation
- */
-static inline phys_addr_t omap_iommu_translate(u32 d, u32 va, u32 mask)
-{
- return (d & mask) | (va & (~mask));
-}
-
-/*
- * some descriptor attributes.
- */
-#define IOPGD_TABLE (1 << 0)
-#define IOPGD_SECTION (2 << 0)
-#define IOPGD_SUPER (1 << 18 | 2 << 0)
-
-#define iopgd_is_table(x) (((x) & 3) == IOPGD_TABLE)
-#define iopgd_is_section(x) (((x) & (1 << 18 | 3)) == IOPGD_SECTION)
-#define iopgd_is_super(x) (((x) & (1 << 18 | 3)) == IOPGD_SUPER)
-
-#define IOPTE_SMALL (2 << 0)
-#define IOPTE_LARGE (1 << 0)
-
-#define iopte_is_small(x) (((x) & 2) == IOPTE_SMALL)
-#define iopte_is_large(x) (((x) & 3) == IOPTE_LARGE)
-
-/* to find an entry in a page-table-directory */
-#define iopgd_index(da) (((da) >> IOPGD_SHIFT) & (PTRS_PER_IOPGD - 1))
-#define iopgd_offset(obj, da) ((obj)->iopgd + iopgd_index(da))
-
-#define iopgd_page_paddr(iopgd) (*iopgd & ~((1 << 10) - 1))
-#define iopgd_page_vaddr(iopgd) ((u32 *)phys_to_virt(iopgd_page_paddr(iopgd)))
-
-/* to find an entry in the second-level page table. */
-#define iopte_index(da) (((da) >> IOPTE_SHIFT) & (PTRS_PER_IOPTE - 1))
-#define iopte_offset(iopgd, da) (iopgd_page_vaddr(iopgd) + iopte_index(da))
-
-static inline u32 iotlb_init_entry(struct iotlb_entry *e, u32 da, u32 pa,
- u32 flags)
-{
- memset(e, 0, sizeof(*e));
-
- e->da = da;
- e->pa = pa;
- e->valid = 1;
- /* FIXME: add OMAP1 support */
- e->pgsz = flags & MMU_CAM_PGSZ_MASK;
- e->endian = flags & MMU_RAM_ENDIAN_MASK;
- e->elsz = flags & MMU_RAM_ELSZ_MASK;
- e->mixed = flags & MMU_RAM_MIXED_MASK;
-
- return iopgsz_to_bytes(e->pgsz);
-}
-
-#define to_iommu(dev) \
- (struct omap_iommu *)platform_get_drvdata(to_platform_device(dev))
-
-#endif /* __PLAT_OMAP_IOMMU_H */
diff --git a/arch/arm/plat-omap/include/plat/iovmm.h b/arch/arm/plat-omap/include/plat/iovmm.h
deleted file mode 100644
index 498e57cda6cd..000000000000
--- a/arch/arm/plat-omap/include/plat/iovmm.h
+++ /dev/null
@@ -1,89 +0,0 @@
-/*
- * omap iommu: simple virtual address space management
- *
- * Copyright (C) 2008-2009 Nokia Corporation
- *
- * Written by Hiroshi DOYU <Hiroshi.DOYU@nokia.com>
- *
- * 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 __IOMMU_MMAP_H
-#define __IOMMU_MMAP_H
-
-#include <linux/iommu.h>
-
-struct iovm_struct {
- struct omap_iommu *iommu; /* iommu object which this belongs to */
- u32 da_start; /* area definition */
- u32 da_end;
- u32 flags; /* IOVMF_: see below */
- struct list_head list; /* linked in ascending order */
- const struct sg_table *sgt; /* keep 'page' <-> 'da' mapping */
- void *va; /* mpu side mapped address */
-};
-
-/*
- * IOVMF_FLAGS: attribute for iommu virtual memory area(iovma)
- *
- * lower 16 bit is used for h/w and upper 16 bit is for s/w.
- */
-#define IOVMF_SW_SHIFT 16
-
-/*
- * iovma: h/w flags derived from cam and ram attribute
- */
-#define IOVMF_CAM_MASK (~((1 << 10) - 1))
-#define IOVMF_RAM_MASK (~IOVMF_CAM_MASK)
-
-#define IOVMF_PGSZ_MASK (3 << 0)
-#define IOVMF_PGSZ_1M MMU_CAM_PGSZ_1M
-#define IOVMF_PGSZ_64K MMU_CAM_PGSZ_64K
-#define IOVMF_PGSZ_4K MMU_CAM_PGSZ_4K
-#define IOVMF_PGSZ_16M MMU_CAM_PGSZ_16M
-
-#define IOVMF_ENDIAN_MASK (1 << 9)
-#define IOVMF_ENDIAN_BIG MMU_RAM_ENDIAN_BIG
-#define IOVMF_ENDIAN_LITTLE MMU_RAM_ENDIAN_LITTLE
-
-#define IOVMF_ELSZ_MASK (3 << 7)
-#define IOVMF_ELSZ_8 MMU_RAM_ELSZ_8
-#define IOVMF_ELSZ_16 MMU_RAM_ELSZ_16
-#define IOVMF_ELSZ_32 MMU_RAM_ELSZ_32
-#define IOVMF_ELSZ_NONE MMU_RAM_ELSZ_NONE
-
-#define IOVMF_MIXED_MASK (1 << 6)
-#define IOVMF_MIXED MMU_RAM_MIXED
-
-/*
- * iovma: s/w flags, used for mapping and umapping internally.
- */
-#define IOVMF_MMIO (1 << IOVMF_SW_SHIFT)
-#define IOVMF_ALLOC (2 << IOVMF_SW_SHIFT)
-#define IOVMF_ALLOC_MASK (3 << IOVMF_SW_SHIFT)
-
-/* "superpages" is supported just with physically linear pages */
-#define IOVMF_DISCONT (1 << (2 + IOVMF_SW_SHIFT))
-#define IOVMF_LINEAR (2 << (2 + IOVMF_SW_SHIFT))
-#define IOVMF_LINEAR_MASK (3 << (2 + IOVMF_SW_SHIFT))
-
-#define IOVMF_DA_FIXED (1 << (4 + IOVMF_SW_SHIFT))
-
-
-extern struct iovm_struct *omap_find_iovm_area(struct device *dev, u32 da);
-extern u32
-omap_iommu_vmap(struct iommu_domain *domain, struct device *dev, u32 da,
- const struct sg_table *sgt, u32 flags);
-extern struct sg_table *omap_iommu_vunmap(struct iommu_domain *domain,
- struct device *dev, u32 da);
-extern u32
-omap_iommu_vmalloc(struct iommu_domain *domain, struct device *dev,
- u32 da, size_t bytes, u32 flags);
-extern void
-omap_iommu_vfree(struct iommu_domain *domain, struct device *dev,
- const u32 da);
-extern void *omap_da_to_va(struct device *dev, u32 da);
-
-#endif /* __IOMMU_MMAP_H */
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