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authorJoerg Roedel <joro@8bytes.org>2012-12-03 18:40:59 +0100
committerJoerg Roedel <joro@8bytes.org>2012-12-03 18:40:59 +0100
commit18e170d03bcd17f5ccb35b271a95783f63145be7 (patch)
tree5ce68cab628b93119d4c160efc6092e1ba6fa93e /drivers/iommu/omap-iommu.c
parent9489e9dcae718d5fde988e4a684a0f55b5f94d17 (diff)
parent2ab7c84815cffd5fe4946a472fc67fefa8ac3c29 (diff)
downloadop-kernel-dev-18e170d03bcd17f5ccb35b271a95783f63145be7.zip
op-kernel-dev-18e170d03bcd17f5ccb35b271a95783f63145be7.tar.gz
Merge branch 'omap-for-v3.8/cleanup-headers-iommu' of git://git.kernel.org/pub/scm/linux/kernel/git/tmlind/linux-omap into arm/omap
Diffstat (limited to 'drivers/iommu/omap-iommu.c')
-rw-r--r--drivers/iommu/omap-iommu.c39
1 files changed, 37 insertions, 2 deletions
diff --git a/drivers/iommu/omap-iommu.c b/drivers/iommu/omap-iommu.c
index d0b1234..badc17c 100644
--- a/drivers/iommu/omap-iommu.c
+++ b/drivers/iommu/omap-iommu.c
@@ -19,14 +19,17 @@
#include <linux/clk.h>
#include <linux/platform_device.h>
#include <linux/iommu.h>
+#include <linux/omap-iommu.h>
#include <linux/mutex.h>
#include <linux/spinlock.h>
+#include <linux/io.h>
#include <asm/cacheflush.h>
-#include <plat/iommu.h>
+#include <linux/platform_data/iommu-omap.h>
-#include <plat/iopgtable.h>
+#include "omap-iopgtable.h"
+#include "omap-iommu.h"
#define for_each_iotlb_cr(obj, n, __i, cr) \
for (__i = 0; \
@@ -51,6 +54,21 @@ struct omap_iommu_domain {
spinlock_t lock;
};
+#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;
+};
+
/* accommodate the difference between omap1 and omap2/3 */
static const struct iommu_functions *arch_iommu;
@@ -1015,6 +1033,23 @@ static void iopte_cachep_ctor(void *iopte)
clean_dcache_area(iopte, IOPTE_TABLE_SIZE);
}
+static 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);
+}
+
static int omap_iommu_map(struct iommu_domain *domain, unsigned long da,
phys_addr_t pa, size_t bytes, int prot)
{
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