Merge branch 'core-fixes-for-linus' of git://git.kernel.org/pub/scm/linux/kernel...

[pandora-kernel.git] / drivers / pci / intel-iommu.h

diff --git a/drivers/pci/intel-iommu.h b/drivers/pci/intel-iommu.h
index 459ad1f..afc0ad9 100644 (file)
--- a/drivers/pci/intel-iommu.h
+++ b/drivers/pci/intel-iommu.h
@@ -14,8 +14,9 @@
  * this program; if not, write to the Free Software Foundation, Inc., 59 Temple
  * Place - Suite 330, Boston, MA 02111-1307 USA.
  *
- * Copyright (C) Ashok Raj <ashok.raj@intel.com>
- * Copyright (C) Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
+ * Copyright (C) 2006-2008 Intel Corporation
+ * Author: Ashok Raj <ashok.raj@intel.com>
+ * Author: Anil S Keshavamurthy <anil.s.keshavamurthy@intel.com>
  */
 
 #ifndef _INTEL_IOMMU_H_
@@ -23,9 +24,23 @@
 
 #include <linux/types.h>
 #include <linux/msi.h>
+#include <linux/sysdev.h>
 #include "iova.h"
 #include <linux/io.h>
 
+/*
+ * We need a fixed PAGE_SIZE of 4K irrespective of
+ * arch PAGE_SIZE for IOMMU page tables.
+ */
+#define PAGE_SHIFT_4K          (12)
+#define PAGE_SIZE_4K           (1UL << PAGE_SHIFT_4K)
+#define PAGE_MASK_4K           (((u64)-1) << PAGE_SHIFT_4K)
+#define PAGE_ALIGN_4K(addr)    (((addr) + PAGE_SIZE_4K - 1) & PAGE_MASK_4K)
+
+#define IOVA_PFN(addr)         ((addr) >> PAGE_SHIFT_4K)
+#define DMA_32BIT_PFN          IOVA_PFN(DMA_32BIT_MASK)
+#define DMA_64BIT_PFN          IOVA_PFN(DMA_64BIT_MASK)
+
 /*
  * Intel IOMMU register specification per version 1.0 public spec.
  */
@@ -126,6 +141,10 @@ static inline void dmar_writeq(void __iomem *addr, u64 val)
 #define DMA_TLB_IH_NONLEAF (((u64)1) << 6)
 #define DMA_TLB_MAX_SIZE (0x3f)
 
+/* PMEN_REG */
+#define DMA_PMEN_EPM (((u32)1)<<31)
+#define DMA_PMEN_PRS (((u32)1)<<0)
+
 /* GCMD_REG */
 #define DMA_GCMD_TE (((u32)1) << 31)
 #define DMA_GCMD_SRTP (((u32)1) << 30)