The patch titled
intel-iommu-PMEN-think-oh patch.
has been added to the -mm tree. Its filename is
intel-iommu-pmen-support-fix.patch
*** Remember to use Documentation/SubmitChecklist when testing your code ***
See http://www.zip.com.au/~akpm/linux/patches/stuff/added-to-mm.txt to find
out what to do about this
------------------------------------------------------
Subject: intel-iommu-PMEN-think-oh patch.
From: mark gross <mgross@xxxxxxxxxxxxxxx>
I screwed up with my earlier patch to enable the portected memroy. The
macro IOMMU_WAIT, exits when the condition goes true. Without this
patch the code will hang at boot and some ( all?) vtd enabled systems.
Signed-off-by: mark gross <mgross@xxxxxxxxxxxxxxx>
Cc: Muli Ben-Yehuda <muli@xxxxxxxxxx>
Signed-off-by: Andrew Morton <akpm@xxxxxxxxxxxxxxxxxxxx>
---
drivers/pci/intel-iommu.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff -puN drivers/pci/intel-iommu.c~intel-iommu-pmen-support-fix drivers/pci/intel-iommu.c
--- a/drivers/pci/intel-iommu.c~intel-iommu-pmen-support-fix
+++ a/drivers/pci/intel-iommu.c
@@ -704,7 +704,7 @@ static void iommu_disable_protect_mem_re
/* wait for the protected region status bit to clear */
IOMMU_WAIT_OP(iommu, DMAR_PMEN_REG,
- readl, (pmen & DMA_PMEN_PRS), pmen);
+ readl, !(pmen & DMA_PMEN_PRS), pmen);
spin_unlock_irqrestore(&iommu->register_lock, flags);
}
_
Patches currently in -mm which might be from mgross@xxxxxxxxxxxxxxx are
pm-qos-infrastructure-and-interface.patch
pm-qos-infrastructure-and-interface-static-initialization-with-blocking-notifiers.patch
pm-qos-remove-locks-around-blocking-notifier.patch
latencyc-use-qos-infrastructure.patch
intel-iommu-pmen-support.patch
intel-iommu-pmen-support-fix.patch
intel-iommu-fault_reason_index_cleanuppatch.patch
intel-iommu-fault_reason_index_cleanuppatch-fix.patch
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