[PATCH 2/4] ARM: OMAP2+: Make some definitions local
Tony Lindgren
tony at atomide.com
Mon Oct 15 20:36:38 EDT 2012
From: Ido Yariv <ido at wizery.com>
Move some of the definitions in plat/iommu.h that can be made local to
either drivers/iommu or arch/arm/mach-omap2. This minimizes the number
of global definitions once plat/iommu.h moves to platform_data/ as part
of the single zImage effort.
Cc: Joerg Roedel <joerg.roedel at amd.com>
Cc: Ohad Ben-Cohen <ohad at wizery.com>
Signed-off-by: Ido Yariv <ido at wizery.com>
Signed-off-by: Tony Lindgren <tony at atomide.com>
---
arch/arm/mach-omap2/iommu2.c | 6 +++
arch/arm/plat-omap/include/plat/iommu.h | 55 -----------------------------
drivers/iommu/omap-iommu-debug.c | 2 +
drivers/iommu/omap-iommu.c | 2 +
drivers/iommu/omap-iommu.h | 59 +++++++++++++++++++++++++++++++
drivers/iommu/omap-iovmm.c | 2 +
6 files changed, 71 insertions(+), 55 deletions(-)
create mode 100644 drivers/iommu/omap-iommu.h
diff --git a/arch/arm/mach-omap2/iommu2.c b/arch/arm/mach-omap2/iommu2.c
index eefc379..c986880 100644
--- a/arch/arm/mach-omap2/iommu2.c
+++ b/arch/arm/mach-omap2/iommu2.c
@@ -65,6 +65,12 @@
((pgsz) == MMU_CAM_PGSZ_64K) ? 0xffff0000 : \
((pgsz) == MMU_CAM_PGSZ_4K) ? 0xfffff000 : 0)
+/* 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)
static void __iommu_set_twl(struct omap_iommu *obj, bool on)
{
diff --git a/arch/arm/plat-omap/include/plat/iommu.h b/arch/arm/plat-omap/include/plat/iommu.h
index 7e8c7b6..35a0245 100644
--- a/arch/arm/plat-omap/include/plat/iommu.h
+++ b/arch/arm/plat-omap/include/plat/iommu.h
@@ -77,11 +77,6 @@ struct cr_regs {
};
};
-struct iotlb_lock {
- short base;
- short vict;
-};
-
/* architecture specific functions */
struct iommu_functions {
unsigned long version;
@@ -145,26 +140,6 @@ struct omap_iommu_arch_data {
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)
-
/*
* MMU Register offsets
*/
@@ -192,16 +167,6 @@ static inline struct omap_iommu *dev_to_omap_iommu(struct device *dev)
/*
* 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)
@@ -257,32 +222,12 @@ static inline struct omap_iommu *dev_to_omap_iommu(struct device *dev)
/*
* 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);
-
/*
* register accessors
*/
diff --git a/drivers/iommu/omap-iommu-debug.c b/drivers/iommu/omap-iommu-debug.c
index f55fc5d..a0b0309 100644
--- a/drivers/iommu/omap-iommu-debug.c
+++ b/drivers/iommu/omap-iommu-debug.c
@@ -24,6 +24,8 @@
#include <plat/iopgtable.h>
+#include "omap-iommu.h"
+
#define MAXCOLUMN 100 /* for short messages */
static DEFINE_MUTEX(iommu_debug_lock);
diff --git a/drivers/iommu/omap-iommu.c b/drivers/iommu/omap-iommu.c
index d0b1234..80844b3 100644
--- a/drivers/iommu/omap-iommu.c
+++ b/drivers/iommu/omap-iommu.c
@@ -28,6 +28,8 @@
#include <plat/iopgtable.h>
+#include "omap-iommu.h"
+
#define for_each_iotlb_cr(obj, n, __i, cr) \
for (__i = 0; \
(__i < (n)) && (cr = __iotlb_read_cr((obj), __i), true); \
diff --git a/drivers/iommu/omap-iommu.h b/drivers/iommu/omap-iommu.h
new file mode 100644
index 0000000..51fd00c
--- /dev/null
+++ b/drivers/iommu/omap-iommu.h
@@ -0,0 +1,59 @@
+/*
+ * omap iommu: miscellaneous iommu functions and structures
+ *
+ * Copyright (C) 2008-2009 Nokia Corporation
+ * Copyright (C) 2012 Texas Instruments
+ *
+ * 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 _OMAP_IOMMU_H
+#define _OMAP_IOMMU_H
+
+/*
+ * 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)
+
+struct iotlb_lock {
+ short base;
+ short vict;
+};
+
+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_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);
+
+/**
+ * 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
diff --git a/drivers/iommu/omap-iovmm.c b/drivers/iommu/omap-iovmm.c
index 2e10c3e..b362fb5 100644
--- a/drivers/iommu/omap-iovmm.c
+++ b/drivers/iommu/omap-iovmm.c
@@ -26,6 +26,8 @@
#include <plat/iopgtable.h>
+#include "omap-iommu.h"
+
static struct kmem_cache *iovm_area_cachep;
/* return the offset of the first scatterlist entry in a sg table */
More information about the linux-arm-kernel
mailing list