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authorSuman Anna <[email protected]>2011-05-04 17:45:37 -0500
committerOhad Ben-Cohen <[email protected]>2011-07-04 15:07:45 +0300
commit7e20b6f39aef541d890eba1fdf493f33b39d29e4 (patch)
tree83874cac3d3bbe9b0e61ce513f7237ca37178bd9
parent61c4f2c81c61f73549928dfd9f3e8f26aa36a8cf (diff)
omap: iommu: fix pte programming
Fix the pte programming to set the page attributes correctly by replacing the bitwise check with an explicit values check. Otherwise, 16MB entries will be erroneously programmed like 4KB entries, which is not what the hardware expects. Signed-off-by: Suman Anna <[email protected]> Acked-by: Hiroshi DOYU <[email protected]> Signed-off-by: Ohad Ben-Cohen <[email protected]>
-rw-r--r--arch/arm/mach-omap2/iommu2.c4
1 files changed, 2 insertions, 2 deletions
diff --git a/arch/arm/mach-omap2/iommu2.c b/arch/arm/mach-omap2/iommu2.c
index adb083e41acd..f286012783c6 100644
--- a/arch/arm/mach-omap2/iommu2.c
+++ b/arch/arm/mach-omap2/iommu2.c
@@ -225,8 +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;
}