lkml.org 
[lkml]   [2011]   [Mar]   [1]   [last100]   RSS Feed
Views: [wrap][no wrap]   [headers]  [forward] 
 
Messages in this thread
Patch in this message
/
From
Subject[PATCH] OMAP:iommu - pgd and pte entries weren't getting flushed out
Date
From: Hari Kanigeri <h-kanigeri2@ti.com>

pgd and pte entries weren't getting flushed out leading to MMU faults.

Signed-off-by: Hari Kanigeri <h-kanigeri2@ti.com>
---
arch/arm/plat-omap/iommu.c | 12 ++++++------
1 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/arch/arm/plat-omap/iommu.c b/arch/arm/plat-omap/iommu.c
index aeb2c33..e9473ff 100644
--- a/arch/arm/plat-omap/iommu.c
+++ b/arch/arm/plat-omap/iommu.c
@@ -508,7 +508,7 @@ static u32 *iopte_alloc(struct iommu *obj, u32 *iopgd, u32 da)
return ERR_PTR(-ENOMEM);

*iopgd = virt_to_phys(iopte) | IOPGD_TABLE;
- flush_iopgd_range(iopgd, iopgd);
+ flush_iopgd_range(iopgd, iopgd + 1);

dev_vdbg(obj->dev, "%s: a new pte:%p\n", __func__, iopte);
} else {
@@ -537,7 +537,7 @@ static int iopgd_alloc_section(struct iommu *obj, u32 da, u32 pa, u32 prot)
}

*iopgd = (pa & IOSECTION_MASK) | prot | IOPGD_SECTION;
- flush_iopgd_range(iopgd, iopgd);
+ flush_iopgd_range(iopgd, iopgd + 1);
return 0;
}

@@ -554,7 +554,7 @@ static int iopgd_alloc_super(struct iommu *obj, u32 da, u32 pa, u32 prot)

for (i = 0; i < 16; i++)
*(iopgd + i) = (pa & IOSUPER_MASK) | prot | IOPGD_SUPER;
- flush_iopgd_range(iopgd, iopgd + 15);
+ flush_iopgd_range(iopgd, iopgd + 16);
return 0;
}

@@ -567,7 +567,7 @@ static int iopte_alloc_page(struct iommu *obj, u32 da, u32 pa, u32 prot)
return PTR_ERR(iopte);

*iopte = (pa & IOPAGE_MASK) | prot | IOPTE_SMALL;
- flush_iopte_range(iopte, iopte);
+ flush_iopte_range(iopte, iopte + 1);

dev_vdbg(obj->dev, "%s: da:%08x pa:%08x pte:%p *pte:%08x\n",
__func__, da, pa, iopte, *iopte);
@@ -592,7 +592,7 @@ static int iopte_alloc_large(struct iommu *obj, u32 da, u32 pa, u32 prot)

for (i = 0; i < 16; i++)
*(iopte + i) = (pa & IOLARGE_MASK) | prot | IOPTE_LARGE;
- flush_iopte_range(iopte, iopte + 15);
+ flush_iopte_range(iopte, iopte + 16);
return 0;
}

@@ -763,7 +763,7 @@ void iopgtable_clear_entry_all(struct iommu *obj)
iopte_free(iopte_offset(iopgd, 0));

*iopgd = 0;
- flush_iopgd_range(iopgd, iopgd);
+ flush_iopgd_range(iopgd, iopgd + 1);
}

flush_iotlb_all(obj);
--
1.7.0.4


\
 
 \ /
  Last update: 2011-03-01 20:49    [W:0.052 / U:0.916 seconds]
©2003-2018 Jasper Spaans|hosted at Digital Ocean and TransIP|Read the blog|Advertise on this site