Re: [PATCH] IOMMU: function flush_iotlb_page is not flushing correct entry

[Hiroshi DOYU]

From: "ext Guzman Lugo, Fernando" 
Subject: [PATCH] IOMMU: function flush_iotlb_page is not flushing correct entry
Date: Wed, 10 Jun 2009 20:43:39 +0200

> 
> Hi,
> 
> The function flush_iotlb_page is not loading into the CAM register 
> the entry to be removed, so it function removes the last entry loaded into 
> the CAM register, so it is leaving a mapped address which maybe would not be 
> validad.
> 
> From 14aef69914856e4bc679bdacfaf48d9214f8dfc9 Mon Sep 17 00:00:00 2001
> From: Fernando Guzman Lugo 
> Date: Wed, 10 Jun 2009 13:32:14 -0500
> Subject: [PATCH] IOMMU: function flush_iotlb_page is not flushing correct 
> entry
> 
> The function flush_iotlb_page is not loading the CAM register with
> the correct entry to be flushed, so it is flushing other entry
> 
> Signed-off-by: Fernando Guzman Lugo 

Thanks, it's queued for next merge.
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[PATCH] IOMMU: function flush_iotlb_page is not flushing correct entry

[Guzman Lugo, Fernando]

Hi,

The function flush_iotlb_page is not loading into the CAM register the 
entry to be removed, so it function removes the last entry loaded into the CAM 
register, so it is leaving a mapped address which maybe would not be validad.

>From 14aef69914856e4bc679bdacfaf48d9214f8dfc9 Mon Sep 17 00:00:00 2001
From: Fernando Guzman Lugo 
Date: Wed, 10 Jun 2009 13:32:14 -0500
Subject: [PATCH] IOMMU: function flush_iotlb_page is not flushing correct entry

The function flush_iotlb_page is not loading the CAM register with
the correct entry to be flushed, so it is flushing other entry

Signed-off-by: Fernando Guzman Lugo 
---
 arch/arm/plat-omap/iommu.c |2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)
 mode change 100644 => 100755 arch/arm/plat-omap/iommu.c

diff --git a/arch/arm/plat-omap/iommu.c b/arch/arm/plat-omap/iommu.c
old mode 100644
new mode 100755
index 4cf449f..4a03013
--- a/arch/arm/plat-omap/iommu.c
+++ b/arch/arm/plat-omap/iommu.c
@@ -298,7 +298,7 @@ void flush_iotlb_page(struct iommu *obj, u32 da)
if ((start <= da) && (da < start + bytes)) {
dev_dbg(obj->dev, "%s: %08x<=%08x(%x)\n",
__func__, start, da, bytes);
-
+   iotlb_load_cr(obj, &cr);
iommu_write_reg(obj, 1, MMU_FLUSH_ENTRY);
}
}
-- 
1.5.6.4
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