+#define PLUTO_IOVA_BASE (1UL*1024*1024*1024) /* 1GB */
+#define PLUTO_IOVA_SIZE (1UL*1024*1024*1024) /* 1GB */
+#define PLUTO_GART_SIZE (PLUTO_IOVA_SIZE / 2)
+
+#define SBA_PDIR_VALID_BIT 0x8000000000000000ULL
+
+#define SBA_AGPGART_COOKIE 0x0000badbadc0ffeeULL
+
+#define SBA_FUNC_ID 0x0000 /* function id */
+#define SBA_FCLASS 0x0008 /* function class, bist, header, rev... */
+
+#define SBA_FUNC_SIZE 4096 /* SBA configuration function reg set */
+
+#define ASTRO_IOC_OFFSET (32 * SBA_FUNC_SIZE)
+#define PLUTO_IOC_OFFSET (1 * SBA_FUNC_SIZE)
+/* Ike's IOC's occupy functions 2 and 3 */
+#define IKE_IOC_OFFSET(p) ((p+2) * SBA_FUNC_SIZE)
+
+#define IOC_CTRL 0x8 /* IOC_CTRL offset */
+#define IOC_CTRL_TC (1 << 0) /* TOC Enable */
+#define IOC_CTRL_CE (1 << 1) /* Coalesce Enable */
+#define IOC_CTRL_DE (1 << 2) /* Dillon Enable */
+#define IOC_CTRL_RM (1 << 8) /* Real Mode */
+#define IOC_CTRL_NC (1 << 9) /* Non Coherent Mode */
+#define IOC_CTRL_D4 (1 << 11) /* Disable 4-byte coalescing */
+#define IOC_CTRL_DD (1 << 13) /* Disable distr. LMMIO range coalescing */
+
+/*
+** Offsets into MBIB (Function 0 on Ike and hopefully Astro)
+** Firmware programs this stuff. Don't touch it.
+*/
+#define LMMIO_DIRECT0_BASE 0x300
+#define LMMIO_DIRECT0_MASK 0x308
+#define LMMIO_DIRECT0_ROUTE 0x310
+
+#define LMMIO_DIST_BASE 0x360
+#define LMMIO_DIST_MASK 0x368
+#define LMMIO_DIST_ROUTE 0x370
+
+#define IOS_DIST_BASE 0x390
+#define IOS_DIST_MASK 0x398
+#define IOS_DIST_ROUTE 0x3A0
+
+#define IOS_DIRECT_BASE 0x3C0
+#define IOS_DIRECT_MASK 0x3C8
+#define IOS_DIRECT_ROUTE 0x3D0
+
+/*
+** Offsets into I/O TLB (Function 2 and 3 on Ike)
+*/
+#define ROPE0_CTL 0x200 /* "regbus pci0" */
+#define ROPE1_CTL 0x208
+#define ROPE2_CTL 0x210
+#define ROPE3_CTL 0x218
+#define ROPE4_CTL 0x220
+#define ROPE5_CTL 0x228
+#define ROPE6_CTL 0x230
+#define ROPE7_CTL 0x238
+
+#define IOC_ROPE0_CFG 0x500 /* pluto only */
+#define IOC_ROPE_AO 0x10 /* Allow "Relaxed Ordering" */
+
+#define HF_ENABLE 0x40
+
+#define IOC_IBASE 0x300 /* IO TLB */
+#define IOC_IMASK 0x308
+#define IOC_PCOM 0x310
+#define IOC_TCNFG 0x318
+#define IOC_PDIR_BASE 0x320
+
+/*
+** IOC supports 4/8/16/64KB page sizes (see TCNFG register)
+** It's safer (avoid memory corruption) to keep DMA page mappings
+** equivalently sized to VM PAGE_SIZE.
+**
+** We really can't avoid generating a new mapping for each
+** page since the Virtual Coherence Index has to be generated
+** and updated for each page.
+**
+** PAGE_SIZE could be greater than IOVP_SIZE. But not the inverse.
+*/
+#define IOVP_SIZE PAGE_SIZE
+#define IOVP_SHIFT PAGE_SHIFT
+#define IOVP_MASK PAGE_MASK
+
+#define SBA_PERF_CFG 0x708 /* Performance Counter stuff */
+#define SBA_PERF_MASK1 0x718
+#define SBA_PERF_MASK2 0x730
+
+/*
+** Offsets into PCI Performance Counters (functions 12 and 13)
+** Controlled by PERF registers in function 2 & 3 respectively.
+*/
+#define SBA_PERF_CNT1 0x200
+#define SBA_PERF_CNT2 0x208
+#define SBA_PERF_CNT3 0x210