From: s-anna@ti.com (Suman Anna)
To: linux-arm-kernel@lists.infradead.org
Subject: [PATCH] omap: iommu: fix pte attributes for super section
Date: Wed, 4 May 2011 17:45:37 -0500 [thread overview]
Message-ID: <mailman.223.1305048323.1530.linux-arm-kernel@lists.infradead.org> (raw)
The PTE programming causes a 16MB entry to be interpreted
as a 4K entry because of the bitwise check, and therefore does
not set the attributes properly in the first-level descriptor
table. The bitwise check has been replaced appropriately.
Signed-off-by: Suman Anna <s-anna@ti.com>
---
arch/arm/mach-omap2/iommu2.c | 3 ++-
1 files changed, 2 insertions(+), 1 deletions(-)
diff --git a/arch/arm/mach-omap2/iommu2.c b/arch/arm/mach-omap2/iommu2.c
index adb083e..c21fbe6 100644
--- a/arch/arm/mach-omap2/iommu2.c
+++ b/arch/arm/mach-omap2/iommu2.c
@@ -225,7 +225,8 @@ static u32 omap2_get_pte_attr(struct iotlb_entry *e)
attr = e->mixed << 5;
attr |= e->endian;
attr |= e->elsz >> 3;
- attr <<= ((e->pgsz & MMU_CAM_PGSZ_4K) ? 0 : 6);
+ attr <<= (((e->pgsz == MMU_CAM_PGSZ_4K) ||
+ (e->pgsz == MMU_CAM_PGSZ_64K)) ? 0 : 6);
return attr;
}
--
1.7.0.4
next reply other threads:[~2011-05-04 22:45 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-05-04 22:45 Suman Anna [this message]
-- strict thread matches above, loose matches on Subject: below --
2011-05-10 17:25 [PATCH] omap: iommu: fix pte attributes for super section Anna, Suman
2011-05-16 7:11 ` Hiroshi DOYU
2011-06-28 19:46 ` Anna, Suman
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