1 files changed, 43 insertions, 8 deletions

diff --git a/include/asm-sparc64/iommu.h b/include/asm-sparc64/iommu.h
index 0de7a3da79cd..e199594a1e9b 100644
--- a/include/asm-sparc64/iommu.h
+++ b/include/asm-sparc64/iommu.h
@@ -7,15 +7,50 @@
 #define _SPARC64_IOMMU_H
 
 /* The format of an iopte in the page tables. */
-#define IOPTE_VALID   0x8000000000000000UL /* IOPTE is valid                  */
-#define IOPTE_64K     0x2000000000000000UL /* IOPTE is for 64k page           */
-#define IOPTE_STBUF   0x1000000000000000UL /* DVMA can use streaming buffer   */
-#define IOPTE_INTRA   0x0800000000000000UL /* SBUS slot-->slot direct transfer*/
-#define IOPTE_CONTEXT 0x07ff800000000000UL /* Context number                  */
-#define IOPTE_PAGE    0x00007fffffffe000UL /* Physical page number (PA[42:13])*/
-#define IOPTE_CACHE   0x0000000000000010UL /* Cached (in UPA E-cache)         */
-#define IOPTE_WRITE   0x0000000000000002UL /* Writeable                       */
+#define IOPTE_VALID   0x8000000000000000UL
+#define IOPTE_64K     0x2000000000000000UL
+#define IOPTE_STBUF   0x1000000000000000UL
+#define IOPTE_INTRA   0x0800000000000000UL
+#define IOPTE_CONTEXT 0x07ff800000000000UL
+#define IOPTE_PAGE    0x00007fffffffe000UL
+#define IOPTE_CACHE   0x0000000000000010UL
+#define IOPTE_WRITE   0x0000000000000002UL
 
 #define IOMMU_NUM_CTXS  4096
 
+struct iommu_arena {
+        unsigned long   *map;
+        unsigned int    hint;
+        unsigned int    limit;
+};
+
+struct iommu {
+        spinlock_t              lock;
+        struct iommu_arena      arena;
+        iopte_t                 *page_table;
+        u32                     page_table_map_base;
+        unsigned long           iommu_control;
+        unsigned long           iommu_tsbbase;
+        unsigned long           iommu_flush;
+        unsigned long           iommu_ctxflush;
+        unsigned long           write_complete_reg;
+        unsigned long           dummy_page;
+        unsigned long           dummy_page_pa;
+        unsigned long           ctx_lowest_free;
+        DECLARE_BITMAP(ctx_bitmap, IOMMU_NUM_CTXS);
+        u32                     dma_addr_mask;
+};
+
+struct strbuf {
+        int                     strbuf_enabled;
+        unsigned long           strbuf_control;
+        unsigned long           strbuf_pflush;
+        unsigned long           strbuf_fsync;
+        unsigned long           strbuf_ctxflush;
+        unsigned long           strbuf_ctxmatch_base;
+        unsigned long           strbuf_flushflag_pa;
+        volatile unsigned long *strbuf_flushflag;
+        volatile unsigned long  __flushflag_buf[(64+(64-1)) / sizeof(long)];
+};
+
 #endif /* !(_SPARC_IOMMU_H) */