Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/linux-2.6-iommu

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/linux-2.6-iommu: (89 commits)
  AMD IOMMU: remove now unnecessary #ifdefs
  AMD IOMMU: prealloc_protection_domains should be static
  kvm/iommu: fix compile warning
  AMD IOMMU: add statistics about total number of map requests
  AMD IOMMU: add statistics about allocated io memory
  AMD IOMMU: add stats counter for domain tlb flushes
  AMD IOMMU: add stats counter for single iommu domain tlb flushes
  AMD IOMMU: add stats counter for cross-page request
  AMD IOMMU: add stats counter for free_coherent requests
  AMD IOMMU: add stats counter for alloc_coherent requests
  AMD IOMMU: add stats counter for unmap_sg requests
  AMD IOMMU: add stats counter for map_sg requests
  AMD IOMMU: add stats counter for unmap_single requests
  AMD IOMMU: add stats counter for map_single requests
  AMD IOMMU: add stats counter for completion wait events
  AMD IOMMU: add init code for statistic collection
  AMD IOMMU: add necessary header defines for stats counting
  AMD IOMMU: add Kconfig entry for statistic collection code
  AMD IOMMU: use dev_name in iommu_enable function
  AMD IOMMU: use calc_devid in prealloc_protection_domains
  ...

2 files changed, 43 insertions, 20 deletions

diff --git a/arch/x86/include/asm/amd_iommu_types.h b/arch/x86/include/asm/amd_iommu_types.h
index ac302a2fa339..95c8cd9d22b5 100644
--- a/arch/x86/include/asm/amd_iommu_types.h
+++ b/arch/x86/include/asm/amd_iommu_types.h
@@ -190,16 +190,23 @@
 /* FIXME: move this macro to <linux/pci.h> */
 #define PCI_BUS(x) (((x) >> 8) & 0xff)
 
+/* Protection domain flags */
+#define PD_DMA_OPS_MASK         (1UL << 0) /* domain used for dma_ops */
+#define PD_DEFAULT_MASK         (1UL << 1) /* domain is a default dma_ops
+                                              domain for an IOMMU */
+
 /*
  * This structure contains generic data for  IOMMU protection domains
  * independent of their use.
  */
 struct protection_domain {
-        spinlock_t lock; /* mostly used to lock the page table*/
-        u16 id;          /* the domain id written to the device table */
-        int mode;        /* paging mode (0-6 levels) */
-        u64 *pt_root;    /* page table root pointer */
-        void *priv;      /* private data */
+        spinlock_t lock;        /* mostly used to lock the page table*/
+        u16 id;                 /* the domain id written to the device table */
+        int mode;               /* paging mode (0-6 levels) */
+        u64 *pt_root;           /* page table root pointer */
+        unsigned long flags;    /* flags to find out type of domain */
+        unsigned dev_cnt;       /* devices assigned to this domain */
+        void *priv;             /* private data */
 };
 
 /*
@@ -295,7 +302,7 @@ struct amd_iommu {
         bool int_enabled;
 
         /* if one, we need to send a completion wait command */
-        int need_sync;
+        bool need_sync;
 
         /* default dma_ops domain for that IOMMU */
         struct dma_ops_domain *default_dom;
@@ -374,7 +381,7 @@ extern struct protection_domain **amd_iommu_pd_table;
 extern unsigned long *amd_iommu_pd_alloc_bitmap;
 
 /* will be 1 if device isolation is enabled */
-extern int amd_iommu_isolate;
+extern bool amd_iommu_isolate;
 
 /*
  * If true, the addresses will be flushed on unmap time, not when
@@ -382,18 +389,6 @@ extern int amd_iommu_isolate;
  */
 extern bool amd_iommu_unmap_flush;
 
-/* takes a PCI device id and prints it out in a readable form */
-static inline void print_devid(u16 devid, int nl)
-{
-        int bus = devid >> 8;
-        int dev = devid >> 3 & 0x1f;
-        int fn  = devid & 0x07;
-
-        printk("%02x:%02x.%x", bus, dev, fn);
-        if (nl)
-                printk("\n");
-}
-
 /* takes bus and device/function and returns the device id
  * FIXME: should that be in generic PCI code? */
 static inline u16 calc_devid(u8 bus, u8 devfn)
@@ -401,4 +396,32 @@ static inline u16 calc_devid(u8 bus, u8 devfn)
         return (((u16)bus) << 8) | devfn;
 }
 
+#ifdef CONFIG_AMD_IOMMU_STATS
+
+struct __iommu_counter {
+        char *name;
+        struct dentry *dent;
+        u64 value;
+};
+
+#define DECLARE_STATS_COUNTER(nm) \
+        static struct __iommu_counter nm = {    \
+                .name = #nm,                    \
+        }
+
+#define INC_STATS_COUNTER(name)         name.value += 1
+#define ADD_STATS_COUNTER(name, x)      name.value += (x)
+#define SUB_STATS_COUNTER(name, x)      name.value -= (x)
+
+#else /* CONFIG_AMD_IOMMU_STATS */
+
+#define DECLARE_STATS_COUNTER(name)
+#define INC_STATS_COUNTER(name)
+#define ADD_STATS_COUNTER(name, x)
+#define SUB_STATS_COUNTER(name, x)
+
+static inline void amd_iommu_stats_init(void) { }
+
+#endif /* CONFIG_AMD_IOMMU_STATS */
+
 #endif /* _ASM_X86_AMD_IOMMU_TYPES_H */
diff --git a/arch/x86/include/asm/kvm_host.h b/arch/x86/include/asm/kvm_host.h
index 97215a458e5f..730843d1d2fb 100644
--- a/arch/x86/include/asm/kvm_host.h
+++ b/arch/x86/include/asm/kvm_host.h
@@ -360,7 +360,7 @@ struct kvm_arch{
         struct list_head active_mmu_pages;
         struct list_head assigned_dev_head;
         struct list_head oos_global_pages;
-        struct dmar_domain *intel_iommu_domain;
+        struct iommu_domain *iommu_domain;
         struct kvm_pic *vpic;
         struct kvm_ioapic *vioapic;
         struct kvm_pit *vpit;