[IA64-SGI] sn pci provider for TIOCE (pci

Altix patch to add an SN pci provider for TIOCE, which is SGI's 
PCI Express implementation.

Signed-off-by: Mark Maule <maule@sgi.com>
Signed-off-by: Tony Luck <tony.luck@intel.com>

6 files changed, 1544 insertions, 2 deletions

diff --git a/arch/ia64/sn/kernel/io_init.c b/arch/ia64/sn/kernel/io_init.c
index 829ea79..d1fc09b 100644
--- a/arch/ia64/sn/kernel/io_init.c
+++ b/arch/ia64/sn/kernel/io_init.c
@@ -18,6 +18,7 @@
 #include <asm/sn/simulator.h>
 #include <asm/sn/sn_sal.h>
 #include <asm/sn/tioca_provider.h>
+#include <asm/sn/tioce_provider.h>
 #include "xtalk/hubdev.h"
 #include "xtalk/xwidgetdev.h"
 
@@ -481,6 +482,7 @@ static int __init sn_pci_init(void)
 
 	pcibr_init_provider();
 	tioca_init_provider();
+	tioce_init_provider();
 
 	/*
 	 * This is needed to avoid bounce limit checks in the blk layer
diff --git a/arch/ia64/sn/pci/Makefile b/arch/ia64/sn/pci/Makefile
index 2f915bc..321576b 100644
--- a/arch/ia64/sn/pci/Makefile
+++ b/arch/ia64/sn/pci/Makefile
@@ -7,4 +7,4 @@
 #
 # Makefile for the sn pci general routines.
 
-obj-y := pci_dma.o tioca_provider.o pcibr/ 
+obj-y := pci_dma.o tioca_provider.o tioce_provider.o pcibr/
diff --git a/arch/ia64/sn/pci/tioce_provider.c b/arch/ia64/sn/pci/tioce_provider.c
new file mode 100644
index 0000000..d908136
--- /dev/null
+++ b/arch/ia64/sn/pci/tioce_provider.c
@@ -0,0 +1,733 @@
+/*
+ * This file is subject to the terms and conditions of the GNU General Public
+ * License.  See the file "COPYING" in the main directory of this archive
+ * for more details.
+ *
+ * Copyright (C) 2003-2005 Silicon Graphics, Inc.  All Rights Reserved.
+ */
+
+#include <linux/types.h>
+#include <linux/interrupt.h>
+#include <linux/pci.h>
+#include <asm/sn/sn_sal.h>
+#include <asm/sn/addrs.h>
+#include <asm/sn/pcidev.h>
+#include <asm/sn/pcibus_provider_defs.h>
+#include <asm/sn/tioce_provider.h>
+
+/**
+ * Bus address ranges for the 5 flavors of TIOCE DMA
+ */
+
+#define TIOCE_D64_MIN	0x8000000000000000UL
+#define TIOCE_D64_MAX	0xffffffffffffffffUL
+#define TIOCE_D64_ADDR(a)	((a) >= TIOCE_D64_MIN)
+
+#define TIOCE_D32_MIN	0x0000000080000000UL
+#define TIOCE_D32_MAX	0x00000000ffffffffUL
+#define TIOCE_D32_ADDR(a)	((a) >= TIOCE_D32_MIN && (a) <= TIOCE_D32_MAX)
+
+#define TIOCE_M32_MIN	0x0000000000000000UL
+#define TIOCE_M32_MAX	0x000000007fffffffUL
+#define TIOCE_M32_ADDR(a)	((a) >= TIOCE_M32_MIN && (a) <= TIOCE_M32_MAX)
+
+#define TIOCE_M40_MIN	0x0000004000000000UL
+#define TIOCE_M40_MAX	0x0000007fffffffffUL
+#define TIOCE_M40_ADDR(a)	((a) >= TIOCE_M40_MIN && (a) <= TIOCE_M40_MAX)
+
+#define TIOCE_M40S_MIN	0x0000008000000000UL
+#define TIOCE_M40S_MAX	0x000000ffffffffffUL
+#define TIOCE_M40S_ADDR(a)	((a) >= TIOCE_M40S_MIN && (a) <= TIOCE_M40S_MAX)
+
+/*
+ * ATE manipulation macros.
+ */
+
+#define ATE_PAGESHIFT(ps)	(__ffs(ps))
+#define ATE_PAGEMASK(ps)	((ps)-1)
+
+#define ATE_PAGE(x, ps) ((x) >> ATE_PAGESHIFT(ps))
+#define ATE_NPAGES(start, len, pagesize) \
+	(ATE_PAGE((start)+(len)-1, pagesize) - ATE_PAGE(start, pagesize) + 1)
+
+#define ATE_VALID(ate)	((ate) & (1UL << 63))
+#define ATE_MAKE(addr, ps) (((addr) & ~ATE_PAGEMASK(ps)) | (1UL << 63))
+
+/*
+ * Flavors of ate-based mapping supported by tioce_alloc_map()
+ */
+
+#define TIOCE_ATE_M32	1
+#define TIOCE_ATE_M40	2
+#define TIOCE_ATE_M40S	3
+
+#define KB(x)	((x) << 10)
+#define MB(x)	((x) << 20)
+#define GB(x)	((x) << 30)
+
+/**
+ * tioce_dma_d64 - create a DMA mapping using 64-bit direct mode
+ * @ct_addr: system coretalk address
+ *
+ * Map @ct_addr into 64-bit CE bus space.  No device context is necessary
+ * and no CE mapping are consumed.
+ *
+ * Bits 53:0 come from the coretalk address.  The remaining bits are set as
+ * follows:
+ *
+ * 63    - must be 1 to indicate d64 mode to CE hardware
+ * 62    - barrier bit ... controlled with tioce_dma_barrier()
+ * 61    - 0 since this is not an MSI transaction
+ * 60:54 - reserved, MBZ
+ */
+static uint64_t
+tioce_dma_d64(unsigned long ct_addr)
+{
+	uint64_t bus_addr;
+
+	bus_addr = ct_addr | (1UL << 63);
+
+	return bus_addr;
+}
+
+/**
+ * pcidev_to_tioce - return misc ce related pointers given a pci_dev
+ * @pci_dev: pci device context
+ * @base: ptr to store struct tioce_mmr * for the CE holding this device
+ * @kernel: ptr to store struct tioce_kernel * for the CE holding this device
+ * @port: ptr to store the CE port number that this device is on
+ *
+ * Return pointers to various CE-related structures for the CE upstream of
+ * @pci_dev.
+ */
+static inline void
+pcidev_to_tioce(struct pci_dev *pdev, struct tioce **base,
+		struct tioce_kernel **kernel, int *port)
+{
+	struct pcidev_info *pcidev_info;
+	struct tioce_common *ce_common;
+	struct tioce_kernel *ce_kernel;
+
+	pcidev_info = SN_PCIDEV_INFO(pdev);
+	ce_common = (struct tioce_common *)pcidev_info->pdi_pcibus_info;
+	ce_kernel = (struct tioce_kernel *)ce_common->ce_kernel_private;
+
+	if (base)
+		*base = (struct tioce *)ce_common->ce_pcibus.bs_base;
+	if (kernel)
+		*kernel = ce_kernel;
+
+	/*
+	 * we use port as a zero-based value internally, even though the
+	 * documentation is 1-based.
+	 */
+	if (port)
+		*port =
+		    (pdev->bus->number < ce_kernel->ce_port1_secondary) ? 0 : 1;
+}
+
+/**
+ * tioce_alloc_map - Given a coretalk address, map it to pcie bus address
+ * space using one of the various ATE-based address modes.
+ * @ce_kern: tioce context
+ * @type: map mode to use
+ * @port: 0-based port that the requesting device is downstream of
+ * @ct_addr: the coretalk address to map
+ * @len: number of bytes to map
+ *
+ * Given the addressing type, set up various paramaters that define the
+ * ATE pool to use.  Search for a contiguous block of entries to cover the
+ * length, and if enough resources exist, fill in the ATE's and construct a
+ * tioce_dmamap struct to track the mapping.
+ */
+static uint64_t
+tioce_alloc_map(struct tioce_kernel *ce_kern, int type, int port,
+		uint64_t ct_addr, int len)
+{
+	int i;
+	int j;
+	int first;
+	int last;
+	int entries;
+	int nates;
+	int pagesize;
+	uint64_t *ate_shadow;
+	uint64_t *ate_reg;
+	uint64_t addr;
+	struct tioce *ce_mmr;
+	uint64_t bus_base;
+	struct tioce_dmamap *map;
+
+	ce_mmr = (struct tioce *)ce_kern->ce_common->ce_pcibus.bs_base;
+
+	switch (type) {
+	case TIOCE_ATE_M32:
+		/*
+		 * The first 64 entries of the ate3240 pool are dedicated to
+		 * super-page (TIOCE_ATE_M40S) mode.
+		 */
+		first = 64;
+		entries = TIOCE_NUM_M3240_ATES - 64;
+		ate_shadow = ce_kern->ce_ate3240_shadow;
+		ate_reg = ce_mmr->ce_ure_ate3240;
+		pagesize = ce_kern->ce_ate3240_pagesize;
+		bus_base = TIOCE_M32_MIN;
+		break;
+	case TIOCE_ATE_M40:
+		first = 0;
+		entries = TIOCE_NUM_M40_ATES;
+		ate_shadow = ce_kern->ce_ate40_shadow;
+		ate_reg = ce_mmr->ce_ure_ate40;
+		pagesize = MB(64);
+		bus_base = TIOCE_M40_MIN;
+		break;
+	case TIOCE_ATE_M40S:
+		/*
+		 * ate3240 entries 0-31 are dedicated to port1 super-page
+		 * mappings.  ate3240 entries 32-63 are dedicated to port2.
+		 */
+		first = port * 32;
+		entries = 32;
+		ate_shadow = ce_kern->ce_ate3240_shadow;
+		ate_reg = ce_mmr->ce_ure_ate3240;
+		pagesize = GB(16);
+		bus_base = TIOCE_M40S_MIN;
+		break;
+	default:
+		return 0;
+	}
+
+	nates = ATE_NPAGES(ct_addr, len, pagesize);
+	if (nates > entries)
+		return 0;
+
+	last = first + entries - nates;
+	for (i = first; i <= last; i++) {
+		if (ATE_VALID(ate_shadow[i]))
+			continue;
+
+		for (j = i; j < i + nates; j++)
+			if (ATE_VALID(ate_shadow[j]))
+				break;
+
+		if (j >= i + nates)
+			break;
+	}
+
+	if (i > last)
+		return 0;
+
+	map = kcalloc(1, sizeof(struct tioce_dmamap), GFP_ATOMIC);
+	if (!map)
+		return 0;
+
+	addr = ct_addr;
+	for (j = 0; j < nates; j++) {
+		uint64_t ate;
+
+		ate = ATE_MAKE(addr, pagesize);
+		ate_shadow[i + j] = ate;
+		ate_reg[i + j] = ate;
+		addr += pagesize;
+	}
+
+	map->refcnt = 1;
+	map->nbytes = nates * pagesize;
+	map->ct_start = ct_addr & ~ATE_PAGEMASK(pagesize);
+	map->pci_start = bus_base + (i * pagesize);
+	map->ate_hw = &ate_reg[i];
+	map->ate_shadow = &ate_shadow[i];
+	map->ate_count = nates;
+
+	list_add(&map->ce_dmamap_list, &ce_kern->ce_dmamap_list);
+
+	return (map->pci_start + (ct_addr - map->ct_start));
+}
+
+/**
+ * tioce_dma_d32 - create a DMA mapping using 32-bit direct mode
+ * @pdev: linux pci_dev representing the function
+ * @paddr: system physical address
+ *
+ * Map @paddr into 32-bit bus space of the CE associated with @pcidev_info.
+ */
+static uint64_t
+tioce_dma_d32(struct pci_dev *pdev, uint64_t ct_addr)
+{
+	int dma_ok;
+	int port;
+	struct tioce *ce_mmr;
+	struct tioce_kernel *ce_kern;
+	uint64_t ct_upper;
+	uint64_t ct_lower;
+	dma_addr_t bus_addr;
+
+	ct_upper = ct_addr & ~0x3fffffffUL;
+	ct_lower = ct_addr & 0x3fffffffUL;
+
+	pcidev_to_tioce(pdev, &ce_mmr, &ce_kern, &port);
+
+	if (ce_kern->ce_port[port].dirmap_refcnt == 0) {
+		volatile uint64_t tmp;
+
+		ce_kern->ce_port[port].dirmap_shadow = ct_upper;
+		ce_mmr->ce_ure_dir_map[port] = ct_upper;
+		tmp = ce_mmr->ce_ure_dir_map[port];
+		dma_ok = 1;
+	} else
+		dma_ok = (ce_kern->ce_port[port].dirmap_shadow == ct_upper);
+
+	if (dma_ok) {
+		ce_kern->ce_port[port].dirmap_refcnt++;
+		bus_addr = TIOCE_D32_MIN + ct_lower;
+	} else
+		bus_addr = 0;
+
+	return bus_addr;
+}
+
+/**
+ * tioce_dma_barrier - swizzle a TIOCE bus address to include or exclude
+ * the barrier bit.
+ * @bus_addr:  bus address to swizzle
+ *
+ * Given a TIOCE bus address, set the appropriate bit to indicate barrier
+ * attributes.
+ */
+static uint64_t
+tioce_dma_barrier(uint64_t bus_addr, int on)
+{
+	uint64_t barrier_bit;
+
+	/* barrier not supported in M40/M40S mode */
+	if (TIOCE_M40_ADDR(bus_addr) || TIOCE_M40S_ADDR(bus_addr))
+		return bus_addr;
+
+	if (TIOCE_D64_ADDR(bus_addr))
+		barrier_bit = (1UL << 62);
+	else			/* must be m32 or d32 */
+		barrier_bit = (1UL << 30);
+
+	return (on) ? (bus_addr | barrier_bit) : (bus_addr & ~barrier_bit);
+}
+
+/**
+ * tioce_dma_unmap - release CE mapping resources
+ * @pdev: linux pci_dev representing the function
+ * @bus_addr: bus address returned by an earlier tioce_dma_map
+ * @dir: mapping direction (unused)
+ *
+ * Locate mapping resources associated with @bus_addr and release them.
+ * For mappings created using the direct modes there are no resources
+ * to release.
+ */
+void
+tioce_dma_unmap(struct pci_dev *pdev, dma_addr_t bus_addr, int dir)
+{
+	int i;
+	int port;
+	struct tioce_kernel *ce_kern;
+	struct tioce *ce_mmr;
+	unsigned long flags;
+
+	bus_addr = tioce_dma_barrier(bus_addr, 0);
+	pcidev_to_tioce(pdev, &ce_mmr, &ce_kern, &port);
+
+	/* nothing to do for D64 */
+
+	if (TIOCE_D64_ADDR(bus_addr))
+		return;
+
+	spin_lock_irqsave(&ce_kern->ce_lock, flags);
+
+	if (TIOCE_D32_ADDR(bus_addr)) {
+		if (--ce_kern->ce_port[port].dirmap_refcnt == 0) {
+			ce_kern->ce_port[port].dirmap_shadow = 0;
+			ce_mmr->ce_ure_dir_map[port] = 0;
+		}
+	} else {
+		struct tioce_dmamap *map;
+
+		list_for_each_entry(map, &ce_kern->ce_dmamap_list,
+				    ce_dmamap_list) {
+			uint64_t last;
+
+			last = map->pci_start + map->nbytes - 1;
+			if (bus_addr >= map->pci_start && bus_addr <= last)
+				break;
+		}
+
+		if (&map->ce_dmamap_list == &ce_kern->ce_dmamap_list) {
+			printk(KERN_WARNING
+			       "%s:  %s - no map found for bus_addr 0x%lx\n",
+			       __FUNCTION__, pci_name(pdev), bus_addr);
+		} else if (--map->refcnt == 0) {
+			for (i = 0; i < map->ate_count; i++) {
+				map->ate_shadow[i] = 0;
+				map->ate_hw[i] = 0;
+			}
+
+			list_del(&map->ce_dmamap_list);
+			kfree(map);
+		}
+	}
+
+	spin_unlock_irqrestore(&ce_kern->ce_lock, flags);
+}
+
+/**
+ * tioce_do_dma_map - map pages for PCI DMA
+ * @pdev: linux pci_dev representing the function
+ * @paddr: host physical address to map
+ * @byte_count: bytes to map
+ *
+ * This is the main wrapper for mapping host physical pages to CE PCI space.
+ * The mapping mode used is based on the device's dma_mask.
+ */
+static uint64_t
+tioce_do_dma_map(struct pci_dev *pdev, uint64_t paddr, size_t byte_count,
+		 int barrier)
+{
+	unsigned long flags;
+	uint64_t ct_addr;
+	uint64_t mapaddr = 0;
+	struct tioce_kernel *ce_kern;
+	struct tioce_dmamap *map;
+	int port;
+	uint64_t dma_mask;
+
+	dma_mask = (barrier) ? pdev->dev.coherent_dma_mask : pdev->dma_mask;
+
+	/* cards must be able to address at least 31 bits */
+	if (dma_mask < 0x7fffffffUL)
+		return 0;
+
+	ct_addr = PHYS_TO_TIODMA(paddr);
+
+	/*
+	 * If the device can generate 64 bit addresses, create a D64 map.
+	 * Since this should never fail, bypass the rest of the checks.
+	 */
+	if (dma_mask == ~0UL) {
+		mapaddr = tioce_dma_d64(ct_addr);
+		goto dma_map_done;
+	}
+
+	pcidev_to_tioce(pdev, NULL, &ce_kern, &port);
+
+	spin_lock_irqsave(&ce_kern->ce_lock, flags);
+
+	/*
+	 * D64 didn't work ... See if we have an existing map that covers
+	 * this address range.  Must account for devices dma_mask here since
+	 * an existing map might have been done in a mode using more pci
+	 * address bits than this device can support.
+	 */
+	list_for_each_entry(map, &ce_kern->ce_dmamap_list, ce_dmamap_list) {
+		uint64_t last;
+
+		last = map->ct_start + map->nbytes - 1;
+		if (ct_addr >= map->ct_start &&
+		    ct_addr + byte_count - 1 <= last &&
+		    map->pci_start <= dma_mask) {
+			map->refcnt++;
+			mapaddr = map->pci_start + (ct_addr - map->ct_start);
+			break;
+		}
+	}
+
+	/*
+	 * If we don't have a map yet, and the card can generate 40
+	 * bit addresses, try the M40/M40S modes.  Note these modes do not
+	 * support a barrier bit, so if we need a consistent map these
+	 * won't work.
+	 */
+	if (!mapaddr && !barrier && dma_mask >= 0xffffffffffUL) {
+		/*
+		 * We have two options for 40-bit mappings:  16GB "super" ATE's
+		 * and 64MB "regular" ATE's.  We'll try both if needed for a
+		 * given mapping but which one we try first depends on the
+		 * size.  For requests >64MB, prefer to use a super page with
+		 * regular as the fallback. Otherwise, try in the reverse order.
+		 */
+
+		if (byte_count > MB(64)) {
+			mapaddr = tioce_alloc_map(ce_kern, TIOCE_ATE_M40S,
+						  port, ct_addr, byte_count);
+			if (!mapaddr)
+				mapaddr =
+				    tioce_alloc_map(ce_kern, TIOCE_ATE_M40, -1,
+						    ct_addr, byte_count);
+		} else {
+			mapaddr = tioce_alloc_map(ce_kern, TIOCE_ATE_M40, -1,
+						  ct_addr, byte_count);
+			if (!mapaddr)
+				mapaddr =
+				    tioce_alloc_map(ce_kern, TIOCE_ATE_M40S,
+						    port, ct_addr, byte_count);
+		}
+	}
+
+	/*
+	 * 32-bit direct is the next mode to try
+	 */
+	if (!mapaddr && dma_mask >= 0xffffffffUL)
+		mapaddr = tioce_dma_d32(pdev, ct_addr);
+
+	/*
+	 * Last resort, try 32-bit ATE-based map.
+	 */
+	if (!mapaddr)
+		mapaddr =
+		    tioce_alloc_map(ce_kern, TIOCE_ATE_M32, -1, ct_addr,
+				    byte_count);
+
+	spin_unlock_irqrestore(&ce_kern->ce_lock, flags);
+
+dma_map_done:
+	if (mapaddr & barrier)
+		mapaddr = tioce_dma_barrier(mapaddr, 1);
+
+	return mapaddr;
+}
+
+/**
+ * tioce_dma - standard pci dma map interface
+ * @pdev: pci device requesting the map
+ * @paddr: system physical address to map into pci space
+ * @byte_count: # bytes to map
+ *
+ * Simply call tioce_do_dma_map() to create a map with the barrier bit clear
+ * in the address.
+ */
+static uint64_t
+tioce_dma(struct pci_dev *pdev, uint64_t paddr, size_t byte_count)
+{
+	return tioce_do_dma_map(pdev, paddr, byte_count, 0);
+}
+
+/**
+ * tioce_dma_consistent - consistent pci dma map interface
+ * @pdev: pci device requesting the map
+ * @paddr: system physical address to map into pci space
+ * @byte_count: # bytes to map
+ *
+ * Simply call tioce_do_dma_map() to create a map with the barrier bit set
+ * in the address.
+ */ static uint64_t
+tioce_dma_consistent(struct pci_dev *pdev, uint64_t paddr, size_t byte_count)
+{
+	return tioce_do_dma_map(pdev, paddr, byte_count, 1);
+}
+
+/**
+ * tioce_error_intr_handler - SGI TIO CE error interrupt handler
+ * @irq: unused
+ * @arg: pointer to tioce_common struct for the given CE
+ * @pt: unused
+ *
+ * Handle a CE error interrupt.  Simply a wrapper around a SAL call which
+ * defers processing to the SGI prom.
+ */ static irqreturn_t
+tioce_error_intr_handler(int irq, void *arg, struct pt_regs *pt)
+{
+	struct tioce_common *soft = arg;
+	struct ia64_sal_retval ret_stuff;
+	ret_stuff.status = 0;
+	ret_stuff.v0 = 0;
+
+	SAL_CALL_NOLOCK(ret_stuff, (u64) SN_SAL_IOIF_ERROR_INTERRUPT,
+			soft->ce_pcibus.bs_persist_segment,
+			soft->ce_pcibus.bs_persist_busnum, 0, 0, 0, 0, 0);
+
+	return IRQ_HANDLED;
+}
+
+/**
+ * tioce_kern_init - init kernel structures related to a given TIOCE
+ * @tioce_common: ptr to a cached tioce_common struct that originated in prom
+ */ static struct tioce_kernel *
+tioce_kern_init(struct tioce_common *tioce_common)
+{
+	int i;
+	uint32_t tmp;
+	struct tioce *tioce_mmr;
+	struct tioce_kernel *tioce_kern;
+
+	tioce_kern = kcalloc(1, sizeof(struct tioce_kernel), GFP_KERNEL);
+	if (!tioce_kern) {
+		return NULL;
+	}
+
+	tioce_kern->ce_common = tioce_common;
+	spin_lock_init(&tioce_kern->ce_lock);
+	INIT_LIST_HEAD(&tioce_kern->ce_dmamap_list);
+	tioce_common->ce_kernel_private = (uint64_t) tioce_kern;
+
+	/*
+	 * Determine the secondary bus number of the port2 logical PPB.
+	 * This is used to decide whether a given pci device resides on
+	 * port1 or port2.  Note:  We don't have enough plumbing set up
+	 * here to use pci_read_config_xxx() so use the raw_pci_ops vector.
+	 */
+
+	raw_pci_ops->read(tioce_common->ce_pcibus.bs_persist_segment,
+			  tioce_common->ce_pcibus.bs_persist_busnum,
+			  PCI_DEVFN(2, 0), PCI_SECONDARY_BUS, 1, &tmp);
+	tioce_kern->ce_port1_secondary = (uint8_t) tmp;
+
+	/*
+	 * Set PMU pagesize to the largest size available, and zero out
+	 * the ate's.
+	 */
+
+	tioce_mmr = (struct tioce *)tioce_common->ce_pcibus.bs_base;
+	tioce_mmr->ce_ure_page_map &= ~CE_URE_PAGESIZE_MASK;
+	tioce_mmr->ce_ure_page_map |= CE_URE_256K_PAGESIZE;
+	tioce_kern->ce_ate3240_pagesize = KB(256);
+
+	for (i = 0; i < TIOCE_NUM_M40_ATES; i++) {
+		tioce_kern->ce_ate40_shadow[i] = 0;
+		tioce_mmr->ce_ure_ate40[i] = 0;
+	}
+
+	for (i = 0; i < TIOCE_NUM_M3240_ATES; i++) {
+		tioce_kern->ce_ate3240_shadow[i] = 0;
+		tioce_mmr->ce_ure_ate3240[i] = 0;
+	}
+
+	return tioce_kern;
+}
+
+/**
+ * tioce_force_interrupt - implement altix force_interrupt() backend for CE
+ * @sn_irq_info: sn asic irq that we need an interrupt generated for
+ *
+ * Given an sn_irq_info struct, set the proper bit in ce_adm_force_int to
+ * force a secondary interrupt to be generated.  This is to work around an
+ * asic issue where there is a small window of opportunity for a legacy device
+ * interrupt to be lost.
+ */
+static void
+tioce_force_interrupt(struct sn_irq_info *sn_irq_info)
+{
+	struct pcidev_info *pcidev_info;
+	struct tioce_common *ce_common;
+	struct tioce *ce_mmr;
+	uint64_t force_int_val;
+
+	if (!sn_irq_info->irq_bridge)
+		return;
+
+	if (sn_irq_info->irq_bridge_type != PCIIO_ASIC_TYPE_TIOCE)
+		return;
+
+	pcidev_info = (struct pcidev_info *)sn_irq_info->irq_pciioinfo;
+	if (!pcidev_info)
+		return;
+
+	ce_common = (struct tioce_common *)pcidev_info->pdi_pcibus_info;
+	ce_mmr = (struct tioce *)ce_common->ce_pcibus.bs_base;
+
+	/*
+	 * irq_int_bit is originally set up by prom, and holds the interrupt
+	 * bit shift (not mask) as defined by the bit definitions in the
+	 * ce_adm_int mmr.  These shifts are not the same for the
+	 * ce_adm_force_int register, so do an explicit mapping here to make
+	 * things clearer.
+	 */
+
+	switch (sn_irq_info->irq_int_bit) {
+	case CE_ADM_INT_PCIE_PORT1_DEV_A_SHFT:
+		force_int_val = 1UL << CE_ADM_FORCE_INT_PCIE_PORT1_DEV_A_SHFT;
+		break;
+	case CE_ADM_INT_PCIE_PORT1_DEV_B_SHFT:
+		force_int_val = 1UL << CE_ADM_FORCE_INT_PCIE_PORT1_DEV_B_SHFT;
+		break;
+	case CE_ADM_INT_PCIE_PORT1_DEV_C_SHFT:
+		force_int_val = 1UL << CE_ADM_FORCE_INT_PCIE_PORT1_DEV_C_SHFT;
+		break;
+	case CE_ADM_INT_PCIE_PORT1_DEV_D_SHFT:
+		force_int_val = 1UL << CE_ADM_FORCE_INT_PCIE_PORT1_DEV_D_SHFT;
+		break;
+	case CE_ADM_INT_PCIE_PORT2_DEV_A_SHFT:
+		force_int_val = 1UL << CE_ADM_FORCE_INT_PCIE_PORT2_DEV_A_SHFT;
+		break;
+	case CE_ADM_INT_PCIE_PORT2_DEV_B_SHFT:
+		force_int_val = 1UL << CE_ADM_FORCE_INT_PCIE_PORT2_DEV_B_SHFT;
+		break;
+	case CE_ADM_INT_PCIE_PORT2_DEV_C_SHFT:
+		force_int_val = 1UL << CE_ADM_FORCE_INT_PCIE_PORT2_DEV_C_SHFT;
+		break;
+	case CE_ADM_INT_PCIE_PORT2_DEV_D_SHFT:
+		force_int_val = 1UL << CE_ADM_FORCE_INT_PCIE_PORT2_DEV_D_SHFT;
+		break;
+	default:
+		return;
+	}
+	ce_mmr->ce_adm_force_int = force_int_val;
+}
+
+/**
+ * tioce_bus_fixup - perform final PCI fixup for a TIO CE bus
+ * @prom_bussoft: Common prom/kernel struct representing the bus
+ *
+ * Replicates the tioce_common pointed to by @prom_bussoft in kernel
+ * space.  Allocates and initializes a kernel-only area for a given CE,
+ * and sets up an irq for handling CE error interrupts.
+ *
+ * On successful setup, returns the kernel version of tioce_common back to
+ * the caller.
+ */
+static void *
+tioce_bus_fixup(struct pcibus_bussoft *prom_bussoft, struct pci_controller *controller)
+{
+	struct tioce_common *tioce_common;
+
+	/*
+	 * Allocate kernel bus soft and copy from prom.
+	 */
+
+	tioce_common = kcalloc(1, sizeof(struct tioce_common), GFP_KERNEL);
+	if (!tioce_common)
+		return NULL;
+
+	memcpy(tioce_common, prom_bussoft, sizeof(struct tioce_common));
+	tioce_common->ce_pcibus.bs_base |= __IA64_UNCACHED_OFFSET;
+
+	if (tioce_kern_init(tioce_common) == NULL) {
+		kfree(tioce_common);
+		return NULL;
+	}
+
+	if (request_irq(SGI_PCIASIC_ERROR,
+			tioce_error_intr_handler,
+			SA_SHIRQ, "TIOCE error", (void *)tioce_common))
+		printk(KERN_WARNING
+		       "%s:  Unable to get irq %d.  "
+		       "Error interrupts won't be routed for "
+		       "TIOCE bus %04x:%02x\n",
+		       __FUNCTION__, SGI_PCIASIC_ERROR,
+		       tioce_common->ce_pcibus.bs_persist_segment,
+		       tioce_common->ce_pcibus.bs_persist_busnum);
+
+	return tioce_common;
+}
+
+static struct sn_pcibus_provider tioce_pci_interfaces = {
+	.dma_map = tioce_dma,
+	.dma_map_consistent = tioce_dma_consistent,
+	.dma_unmap = tioce_dma_unmap,
+	.bus_fixup = tioce_bus_fixup,
+	.force_interrupt = tioce_force_interrupt
+};
+
+/**
+ * tioce_init_provider - init SN PCI provider ops for TIO CE
+ */
+int
+tioce_init_provider(void)
+{
+	sn_pci_provider[PCIIO_ASIC_TYPE_TIOCE] = &tioce_pci_interfaces;
+	return 0;
+}
diff --git a/include/asm-ia64/sn/pcibus_provider_defs.h b/include/asm-ia64/sn/pcibus_provider_defs.h
index 5c3ba57..5a92f51 100644
--- a/include/asm-ia64/sn/pcibus_provider_defs.h
+++ b/include/asm-ia64/sn/pcibus_provider_defs.h
@@ -18,8 +18,9 @@
 #define PCIIO_ASIC_TYPE_PIC	2
 #define PCIIO_ASIC_TYPE_TIOCP	3
 #define PCIIO_ASIC_TYPE_TIOCA	4
+#define PCIIO_ASIC_TYPE_TIOCE	5
 
-#define PCIIO_ASIC_MAX_TYPES	5
+#define PCIIO_ASIC_MAX_TYPES	6
 
 /*
  * Common pciio bus provider data.  There should be one of these as the
diff --git a/include/asm-ia64/sn/tioce.h b/include/asm-ia64/sn/tioce.h
new file mode 100644
index 0000000..2287985
--- /dev/null
+++ b/include/asm-ia64/sn/tioce.h
@@ -0,0 +1,740 @@
+/**************************************************************************
+ *                                                                        *
+ *  Unpublished copyright (c) 2005, Silicon Graphics, Inc.                *
+ *  THIS IS UNPUBLISHED CONFIDENTIAL AND PROPRIETARY SOURCE CODE OF SGI.  *
+ *                                                                        *
+ *  The copyright notice above does  not evidence any actual or intended  *
+ *  publication  or  disclosure  of  this source  code,  which  includes  *
+ *  information that is confidential  and/or proprietary, and is a trade  *
+ *  secret, of  Silicon Graphics, Inc.   ANY REPRODUCTION, MODIFICATION,  *
+ *  DISTRIBUTION, PUBLIC  PERFORMANCE, OR  PUBLIC DISPLAY OF  OR THROUGH  *
+ *  USE  OF THIS  SOURCE CODE  WITHOUT  THE EXPRESS  WRITTEN CONSENT  OF  *
+ *  SILICON GRAPHICS, INC.  IS  STRICTLY PROHIBITED, AND IN VIOLATION OF  *
+ *  APPLICABLE  LAWS   AND  INTERNATIONAL  TREATIES.    THE  RECEIPT  OR  *
+ *  POSSESSION OF  THIS SOURCE CODE AND/OR RELATED  INFORMATION DOES NOT  *
+ *  CONVEY OR IMPLY ANY RIGHTS  TO REPRODUCE, DISCLOSE OR DISTRIBUTE ITS  *
+ *  CONTENTS,  OR TO  MANUFACTURE, USE,  OR  SELL ANYTHING  THAT IT  MAY  *
+ *  DESCRIBE, IN WHOLE OR IN PART.                                        *
+ *                                                                        *
+ **************************************************************************/
+
+#ifndef __ASM_IA64_SN_TIOCE_H__
+#define __ASM_IA64_SN_TIOCE_H__
+
+/* CE ASIC part & mfgr information  */
+#define TIOCE_PART_NUM			0xCE00
+#define TIOCE_MFGR_NUM			0x36
+#define TIOCE_REV_A			0x1
+
+/* CE Virtual PPB Vendor/Device IDs */
+#define CE_VIRT_PPB_VENDOR_ID		0x10a9
+#define CE_VIRT_PPB_DEVICE_ID		0x4002
+
+/* CE Host Bridge Vendor/Device IDs */
+#define CE_HOST_BRIDGE_VENDOR_ID	0x10a9
+#define CE_HOST_BRIDGE_DEVICE_ID	0x4003
+
+
+#define TIOCE_NUM_M40_ATES		4096
+#define TIOCE_NUM_M3240_ATES		2048
+#define TIOCE_NUM_PORTS			2
+
+/*
+ * Register layout for TIOCE.  MMR offsets are shown at the far right of the
+ * structure definition.
+ */
+typedef volatile struct tioce {
+	/*
+	 * ADMIN : Administration Registers
+	 */
+	uint64_t	ce_adm_id;				/* 0x000000 */
+	uint64_t	ce_pad_000008;				/* 0x000008 */
+	uint64_t	ce_adm_dyn_credit_status;		/* 0x000010 */
+	uint64_t	ce_adm_last_credit_status;		/* 0x000018 */
+	uint64_t	ce_adm_credit_limit;			/* 0x000020 */
+	uint64_t	ce_adm_force_credit;			/* 0x000028 */
+	uint64_t	ce_adm_control;				/* 0x000030 */
+	uint64_t	ce_adm_mmr_chn_timeout;			/* 0x000038 */
+	uint64_t	ce_adm_ssp_ure_timeout;			/* 0x000040 */
+	uint64_t	ce_adm_ssp_dre_timeout;			/* 0x000048 */
+	uint64_t	ce_adm_ssp_debug_sel;			/* 0x000050 */
+	uint64_t	ce_adm_int_status;			/* 0x000058 */
+	uint64_t	ce_adm_int_status_alias;		/* 0x000060 */
+	uint64_t	ce_adm_int_mask;			/* 0x000068 */
+	uint64_t	ce_adm_int_pending;			/* 0x000070 */
+	uint64_t	ce_adm_force_int;			/* 0x000078 */
+	uint64_t	ce_adm_ure_ups_buf_barrier_flush;	/* 0x000080 */
+	uint64_t	ce_adm_int_dest[15];	    /* 0x000088 -- 0x0000F8 */
+	uint64_t	ce_adm_error_summary;			/* 0x000100 */
+	uint64_t	ce_adm_error_summary_alias;		/* 0x000108 */
+	uint64_t	ce_adm_error_mask;			/* 0x000110 */
+	uint64_t	ce_adm_first_error;			/* 0x000118 */
+	uint64_t	ce_adm_error_overflow;			/* 0x000120 */
+	uint64_t	ce_adm_error_overflow_alias;		/* 0x000128 */
+	uint64_t	ce_pad_000130[2];	    /* 0x000130 -- 0x000138 */
+	uint64_t	ce_adm_tnum_error;			/* 0x000140 */
+	uint64_t	ce_adm_mmr_err_detail;			/* 0x000148 */
+	uint64_t	ce_adm_msg_sram_perr_detail;		/* 0x000150 */
+	uint64_t	ce_adm_bap_sram_perr_detail;		/* 0x000158 */
+	uint64_t	ce_adm_ce_sram_perr_detail;		/* 0x000160 */
+	uint64_t	ce_adm_ce_credit_oflow_detail;		/* 0x000168 */
+	uint64_t	ce_adm_tx_link_idle_max_timer;		/* 0x000170 */
+	uint64_t	ce_adm_pcie_debug_sel;			/* 0x000178 */
+	uint64_t	ce_pad_000180[16];	    /* 0x000180 -- 0x0001F8 */
+
+	uint64_t	ce_adm_pcie_debug_sel_top;		/* 0x000200 */
+	uint64_t	ce_adm_pcie_debug_lat_sel_lo_top;	/* 0x000208 */
+	uint64_t	ce_adm_pcie_debug_lat_sel_hi_top;	/* 0x000210 */
+	uint64_t	ce_adm_pcie_debug_trig_sel_top;		/* 0x000218 */
+	uint64_t	ce_adm_pcie_debug_trig_lat_sel_lo_top;	/* 0x000220 */
+	uint64_t	ce_adm_pcie_debug_trig_lat_sel_hi_top;	/* 0x000228 */
+	uint64_t	ce_adm_pcie_trig_compare_top;		/* 0x000230 */
+	uint64_t	ce_adm_pcie_trig_compare_en_top;	/* 0x000238 */
+	uint64_t	ce_adm_ssp_debug_sel_top;		/* 0x000240 */
+	uint64_t	ce_adm_ssp_debug_lat_sel_lo_top;	/* 0x000248 */
+	uint64_t	ce_adm_ssp_debug_lat_sel_hi_top;	/* 0x000250 */
+	uint64_t	ce_adm_ssp_debug_trig_sel_top;		/* 0x000258 */
+	uint64_t	ce_adm_ssp_debug_trig_lat_sel_lo_top;	/* 0x000260 */
+	uint64_t	ce_adm_ssp_debug_trig_lat_sel_hi_top;	/* 0x000268 */
+	uint64_t	ce_adm_ssp_trig_compare_top;		/* 0x000270 */
+	uint64_t	ce_adm_ssp_trig_compare_en_top;		/* 0x000278 */
+	uint64_t	ce_pad_000280[48];	    /* 0x000280 -- 0x0003F8 */
+
+	uint64_t	ce_adm_bap_ctrl;			/* 0x000400 */
+	uint64_t	ce_pad_000408[127];	    /* 0x000408 -- 0x0007F8 */
+
+	uint64_t	ce_msg_buf_data63_0[35];    /* 0x000800 -- 0x000918 */
+	uint64_t	ce_pad_000920[29];	    /* 0x000920 -- 0x0009F8 */
+
+	uint64_t	ce_msg_buf_data127_64[35];  /* 0x000A00 -- 0x000B18 */
+	uint64_t	ce_pad_000B20[29];	    /* 0x000B20 -- 0x000BF8 */
+
+	uint64_t	ce_msg_buf_parity[35];	    /* 0x000C00 -- 0x000D18 */
+	uint64_t	ce_pad_000D20[29];	    /* 0x000D20 -- 0x000DF8 */
+
+	uint64_t	ce_pad_000E00[576];	    /* 0x000E00 -- 0x001FF8 */
+
+	/*
+	 * LSI : LSI's PCI Express Link Registers (Link#1 and Link#2)
+	 * Link#1 MMRs at start at 0x002000, Link#2 MMRs at 0x003000
+	 * NOTE: the comment offsets at far right: let 'z' = {2 or 3}
+	 */
+	#define ce_lsi(link_num)	ce_lsi[link_num-1]
+	struct ce_lsi_reg {
+		uint64_t	ce_lsi_lpu_id;			/* 0x00z000 */
+		uint64_t	ce_lsi_rst;			/* 0x00z008 */
+		uint64_t	ce_lsi_dbg_stat;		/* 0x00z010 */
+		uint64_t	ce_lsi_dbg_cfg;			/* 0x00z018 */
+		uint64_t	ce_lsi_ltssm_ctrl;		/* 0x00z020 */
+		uint64_t	ce_lsi_lk_stat;			/* 0x00z028 */
+		uint64_t	ce_pad_00z030[2];   /* 0x00z030 -- 0x00z038 */
+		uint64_t	ce_lsi_int_and_stat;		/* 0x00z040 */
+		uint64_t	ce_lsi_int_mask;		/* 0x00z048 */
+		uint64_t	ce_pad_00z050[22];  /* 0x00z050 -- 0x00z0F8 */
+		uint64_t	ce_lsi_lk_perf_cnt_sel;		/* 0x00z100 */
+		uint64_t	ce_pad_00z108;			/* 0x00z108 */
+		uint64_t	ce_lsi_lk_perf_cnt_ctrl;	/* 0x00z110 */
+		uint64_t	ce_pad_00z118;			/* 0x00z118 */
+		uint64_t	ce_lsi_lk_perf_cnt1;		/* 0x00z120 */
+		uint64_t	ce_lsi_lk_perf_cnt1_test;	/* 0x00z128 */
+		uint64_t	ce_lsi_lk_perf_cnt2;		/* 0x00z130 */
+		uint64_t	ce_lsi_lk_perf_cnt2_test;	/* 0x00z138 */
+		uint64_t	ce_pad_00z140[24];  /* 0x00z140 -- 0x00z1F8 */
+		uint64_t	ce_lsi_lk_lyr_cfg;		/* 0x00z200 */
+		uint64_t	ce_lsi_lk_lyr_status;		/* 0x00z208 */
+		uint64_t	ce_lsi_lk_lyr_int_stat;		/* 0x00z210 */
+		uint64_t	ce_lsi_lk_ly_int_stat_test;	/* 0x00z218 */
+		uint64_t	ce_lsi_lk_ly_int_stat_mask;	/* 0x00z220 */
+		uint64_t	ce_pad_00z228[3];   /* 0x00z228 -- 0x00z238 */
+		uint64_t	ce_lsi_fc_upd_ctl;		/* 0x00z240 */
+		uint64_t	ce_pad_00z248[3];   /* 0x00z248 -- 0x00z258 */
+		uint64_t	ce_lsi_flw_ctl_upd_to_timer;	/* 0x00z260 */
+		uint64_t	ce_lsi_flw_ctl_upd_timer0;	/* 0x00z268 */
+		uint64_t	ce_lsi_flw_ctl_upd_timer1;	/* 0x00z270 */
+		uint64_t	ce_pad_00z278[49];  /* 0x00z278 -- 0x00z3F8 */
+		uint64_t	ce_lsi_freq_nak_lat_thrsh;	/* 0x00z400 */
+		uint64_t	ce_lsi_ack_nak_lat_tmr;		/* 0x00z408 */
+		uint64_t	ce_lsi_rply_tmr_thr;		/* 0x00z410 */
+		uint64_t	ce_lsi_rply_tmr;		/* 0x00z418 */
+		uint64_t	ce_lsi_rply_num_stat;		/* 0x00z420 */
+		uint64_t	ce_lsi_rty_buf_max_addr;	/* 0x00z428 */
+		uint64_t	ce_lsi_rty_fifo_ptr;		/* 0x00z430 */
+		uint64_t	ce_lsi_rty_fifo_rd_wr_ptr;	/* 0x00z438 */
+		uint64_t	ce_lsi_rty_fifo_cred;		/* 0x00z440 */
+		uint64_t	ce_lsi_seq_cnt;			/* 0x00z448 */
+		uint64_t	ce_lsi_ack_sent_seq_num;	/* 0x00z450 */
+		uint64_t	ce_lsi_seq_cnt_fifo_max_addr;	/* 0x00z458 */
+		uint64_t	ce_lsi_seq_cnt_fifo_ptr;	/* 0x00z460 */
+		uint64_t	ce_lsi_seq_cnt_rd_wr_ptr;	/* 0x00z468 */
+		uint64_t	ce_lsi_tx_lk_ts_ctl;		/* 0x00z470 */
+		uint64_t	ce_pad_00z478;			/* 0x00z478 */
+		uint64_t	ce_lsi_mem_addr_ctl;		/* 0x00z480 */
+		uint64_t	ce_lsi_mem_d_ld0;		/* 0x00z488 */
+		uint64_t	ce_lsi_mem_d_ld1;		/* 0x00z490 */
+		uint64_t	ce_lsi_mem_d_ld2;		/* 0x00z498 */
+		uint64_t	ce_lsi_mem_d_ld3;		/* 0x00z4A0 */
+		uint64_t	ce_lsi_mem_d_ld4;		/* 0x00z4A8 */
+		uint64_t	ce_pad_00z4B0[2];   /* 0x00z4B0 -- 0x00z4B8 */
+		uint64_t	ce_lsi_rty_d_cnt;		/* 0x00z4C0 */
+		uint64_t	ce_lsi_seq_buf_cnt;		/* 0x00z4C8 */
+		uint64_t	ce_lsi_seq_buf_bt_d;		/* 0x00z4D0 */
+		uint64_t	ce_pad_00z4D8;			/* 0x00z4D8 */
+		uint64_t	ce_lsi_ack_lat_thr;		/* 0x00z4E0 */
+		uint64_t	ce_pad_00z4E8[3];   /* 0x00z4E8 -- 0x00z4F8 */
+		uint64_t	ce_lsi_nxt_rcv_seq_1_cntr;	/* 0x00z500 */
+		uint64_t	ce_lsi_unsp_dllp_rcvd;		/* 0x00z508 */
+		uint64_t	ce_lsi_rcv_lk_ts_ctl;		/* 0x00z510 */
+		uint64_t	ce_pad_00z518[29];  /* 0x00z518 -- 0x00z5F8 */
+		uint64_t	ce_lsi_phy_lyr_cfg;		/* 0x00z600 */
+		uint64_t	ce_pad_00z608;			/* 0x00z608 */
+		uint64_t	ce_lsi_phy_lyr_int_stat;	/* 0x00z610 */
+		uint64_t	ce_lsi_phy_lyr_int_stat_test;	/* 0x00z618 */
+		uint64_t	ce_lsi_phy_lyr_int_mask;	/* 0x00z620 */
+		uint64_t	ce_pad_00z628[11];  /* 0x00z628 -- 0x00z678 */
+		uint64_t	ce_lsi_rcv_phy_cfg;		/* 0x00z680 */
+		uint64_t	ce_lsi_rcv_phy_stat1;		/* 0x00z688 */
+		uint64_t	ce_lsi_rcv_phy_stat2;		/* 0x00z690 */
+		uint64_t	ce_lsi_rcv_phy_stat3;		/* 0x00z698 */
+		uint64_t	ce_lsi_rcv_phy_int_stat;	/* 0x00z6A0 */
+		uint64_t	ce_lsi_rcv_phy_int_stat_test;	/* 0x00z6A8 */
+		uint64_t	ce_lsi_rcv_phy_int_mask;	/* 0x00z6B0 */
+		uint64_t	ce_pad_00z6B8[9];   /* 0x00z6B8 -- 0x00z6F8 */
+		uint64_t	ce_lsi_tx_phy_cfg;		/* 0x00z700 */
+		uint64_t	ce_lsi_tx_phy_stat;		/* 0x00z708 */
+		uint64_t	ce_lsi_tx_phy_int_stat;		/* 0x00z710 */
+		uint64_t	ce_lsi_tx_phy_int_stat_test;	/* 0x00z718 */
+		uint64_t	ce_lsi_tx_phy_int_mask;		/* 0x00z720 */
+		uint64_t	ce_lsi_tx_phy_stat2;		/* 0x00z728 */
+		uint64_t	ce_pad_00z730[10];  /* 0x00z730 -- 0x00z77F */
+		uint64_t	ce_lsi_ltssm_cfg1;		/* 0x00z780 */
+		uint64_t	ce_lsi_ltssm_cfg2;		/* 0x00z788 */
+		uint64_t	ce_lsi_ltssm_cfg3;		/* 0x00z790 */
+		uint64_t	ce_lsi_ltssm_cfg4;		/* 0x00z798 */
+		uint64_t	ce_lsi_ltssm_cfg5;		/* 0x00z7A0 */
+		uint64_t	ce_lsi_ltssm_stat1;		/* 0x00z7A8 */
+		uint64_t	ce_lsi_ltssm_stat2;		/* 0x00z7B0 */
+		uint64_t	ce_lsi_ltssm_int_stat;		/* 0x00z7B8 */
+		uint64_t	ce_lsi_ltssm_int_stat_test;	/* 0x00z7C0 */
+		uint64_t	ce_lsi_ltssm_int_mask;		/* 0x00z7C8 */
+		uint64_t	ce_lsi_ltssm_stat_wr_en;	/* 0x00z7D0 */
+		uint64_t	ce_pad_00z7D8[5];   /* 0x00z7D8 -- 0x00z7F8 */
+		uint64_t	ce_lsi_gb_cfg1;			/* 0x00z800 */
+		uint64_t	ce_lsi_gb_cfg2;			/* 0x00z808 */
+		uint64_t	ce_lsi_gb_cfg3;			/* 0x00z810 */
+		uint64_t	ce_lsi_gb_cfg4;			/* 0x00z818 */
+		uint64_t	ce_lsi_gb_stat;			/* 0x00z820 */
+		uint64_t	ce_lsi_gb_int_stat;		/* 0x00z828 */
+		uint64_t	ce_lsi_gb_int_stat_test;	/* 0x00z830 */
+		uint64_t	ce_lsi_gb_int_mask;		/* 0x00z838 */
+		uint64_t	ce_lsi_gb_pwr_dn1;		/* 0x00z840 */
+		uint64_t	ce_lsi_gb_pwr_dn2;		/* 0x00z848 */
+		uint64_t	ce_pad_00z850[246]; /* 0x00z850 -- 0x00zFF8 */
+	} ce_lsi[2];
+
+	uint64_t	ce_pad_004000[10];	    /* 0x004000 -- 0x004048 */
+
+	/*
+	 * CRM: Coretalk Receive Module Registers
+	 */
+	uint64_t	ce_crm_debug_mux;			/* 0x004050 */
+	uint64_t	ce_pad_004058;				/* 0x004058 */
+	uint64_t	ce_crm_ssp_err_cmd_wrd;			/* 0x004060 */
+	uint64_t	ce_crm_ssp_err_addr;			/* 0x004068 */
+	uint64_t	ce_crm_ssp_err_syn;			/* 0x004070 */
+
+	uint64_t	ce_pad_004078[499];	    /* 0x004078 -- 0x005008 */
+
+	/*
+         * CXM: Coretalk Xmit Module Registers
+         */
+	uint64_t	ce_cxm_dyn_credit_status;		/* 0x005010 */
+	uint64_t	ce_cxm_last_credit_status;		/* 0x005018 */
+	uint64_t	ce_cxm_credit_limit;			/* 0x005020 */
+	uint64_t	ce_cxm_force_credit;			/* 0x005028 */
+	uint64_t	ce_cxm_disable_bypass;			/* 0x005030 */
+	uint64_t	ce_pad_005038[3];	    /* 0x005038 -- 0x005048 */
+	uint64_t	ce_cxm_debug_mux;			/* 0x005050 */
+
+        uint64_t        ce_pad_005058[501];         /* 0x005058 -- 0x005FF8 */
+
+	/*
+	 * DTL: Downstream Transaction Layer Regs (Link#1 and Link#2)
+	 * DTL: Link#1 MMRs at start at 0x006000, Link#2 MMRs at 0x008000
+	 * DTL: the comment offsets at far right: let 'y' = {6 or 8}
+	 *
+	 * UTL: Downstream Transaction Layer Regs (Link#1 and Link#2)
+	 * UTL: Link#1 MMRs at start at 0x007000, Link#2 MMRs at 0x009000
+	 * UTL: the comment offsets at far right: let 'z' = {7 or 9}
+	 */
+	#define ce_dtl(link_num)	ce_dtl_utl[link_num-1]
+	#define ce_utl(link_num)	ce_dtl_utl[link_num-1]
+	struct ce_dtl_utl_reg {
+		/* DTL */
+		uint64_t	ce_dtl_dtdr_credit_limit;	/* 0x00y000 */
+		uint64_t	ce_dtl_dtdr_credit_force;	/* 0x00y008 */
+		uint64_t	ce_dtl_dyn_credit_status;	/* 0x00y010 */
+		uint64_t	ce_dtl_dtl_last_credit_stat;	/* 0x00y018 */
+		uint64_t	ce_dtl_dtl_ctrl;		/* 0x00y020 */
+		uint64_t	ce_pad_00y028[5];   /* 0x00y028 -- 0x00y048 */
+		uint64_t	ce_dtl_debug_sel;		/* 0x00y050 */
+		uint64_t	ce_pad_00y058[501]; /* 0x00y058 -- 0x00yFF8 */
+
+		/* UTL */
+		uint64_t	ce_utl_utl_ctrl;		/* 0x00z000 */
+		uint64_t	ce_utl_debug_sel;		/* 0x00z008 */
+		uint64_t	ce_pad_00z010[510]; /* 0x00z010 -- 0x00zFF8 */
+	} ce_dtl_utl[2];
+
+	uint64_t	ce_pad_00A000[514];	    /* 0x00A000 -- 0x00B008 */
+
+	/*
+	 * URE: Upstream Request Engine
+         */
+	uint64_t	ce_ure_dyn_credit_status;		/* 0x00B010 */
+	uint64_t	ce_ure_last_credit_status;		/* 0x00B018 */
+	uint64_t	ce_ure_credit_limit;			/* 0x00B020 */
+	uint64_t	ce_pad_00B028;				/* 0x00B028 */
+	uint64_t	ce_ure_control;				/* 0x00B030 */
+	uint64_t	ce_ure_status;				/* 0x00B038 */
+	uint64_t	ce_pad_00B040[2];	    /* 0x00B040 -- 0x00B048 */
+	uint64_t	ce_ure_debug_sel;			/* 0x00B050 */
+	uint64_t	ce_ure_pcie_debug_sel;			/* 0x00B058 */
+	uint64_t	ce_ure_ssp_err_cmd_wrd;			/* 0x00B060 */
+	uint64_t	ce_ure_ssp_err_addr;			/* 0x00B068 */
+	uint64_t	ce_ure_page_map;			/* 0x00B070 */
+	uint64_t	ce_ure_dir_map[TIOCE_NUM_PORTS];	/* 0x00B078 */
+	uint64_t	ce_ure_pipe_sel1;			/* 0x00B088 */
+	uint64_t	ce_ure_pipe_mask1;			/* 0x00B090 */
+	uint64_t	ce_ure_pipe_sel2;			/* 0x00B098 */
+	uint64_t	ce_ure_pipe_mask2;			/* 0x00B0A0 */
+	uint64_t	ce_ure_pcie1_credits_sent;		/* 0x00B0A8 */
+	uint64_t	ce_ure_pcie1_credits_used;		/* 0x00B0B0 */
+	uint64_t	ce_ure_pcie1_credit_limit;		/* 0x00B0B8 */
+	uint64_t	ce_ure_pcie2_credits_sent;		/* 0x00B0C0 */
+	uint64_t	ce_ure_pcie2_credits_used;		/* 0x00B0C8 */
+	uint64_t	ce_ure_pcie2_credit_limit;		/* 0x00B0D0 */
+	uint64_t	ce_ure_pcie_force_credit;		/* 0x00B0D8 */
+	uint64_t	ce_ure_rd_tnum_val;			/* 0x00B0E0 */
+	uint64_t	ce_ure_rd_tnum_rsp_rcvd;		/* 0x00B0E8 */
+	uint64_t	ce_ure_rd_tnum_esent_timer;		/* 0x00B0F0 */
+	uint64_t	ce_ure_rd_tnum_error;			/* 0x00B0F8 */
+	uint64_t	ce_ure_rd_tnum_first_cl;		/* 0x00B100 */
+	uint64_t	ce_ure_rd_tnum_link_buf;		/* 0x00B108 */
+	uint64_t	ce_ure_wr_tnum_val;			/* 0x00B110 */
+	uint64_t	ce_ure_sram_err_addr0;			/* 0x00B118 */
+	uint64_t	ce_ure_sram_err_addr1;			/* 0x00B120 */
+	uint64_t	ce_ure_sram_err_addr2;			/* 0x00B128 */
+	uint64_t	ce_ure_sram_rd_addr0;			/* 0x00B130 */
+	uint64_t	ce_ure_sram_rd_addr1;			/* 0x00B138 */
+	uint64_t	ce_ure_sram_rd_addr2;			/* 0x00B140 */
+	uint64_t	ce_ure_sram_wr_addr0;			/* 0x00B148 */
+	uint64_t	ce_ure_sram_wr_addr1;			/* 0x00B150 */
+	uint64_t	ce_ure_sram_wr_addr2;			/* 0x00B158 */
+	uint64_t	ce_ure_buf_flush10;			/* 0x00B160 */
+	uint64_t	ce_ure_buf_flush11;			/* 0x00B168 */
+	uint64_t	ce_ure_buf_flush12;			/* 0x00B170 */
+	uint64_t	ce_ure_buf_flush13;			/* 0x00B178 */
+	uint64_t	ce_ure_buf_flush20;			/* 0x00B180 */
+	uint64_t	ce_ure_buf_flush21;			/* 0x00B188 */
+	uint64_t	ce_ure_buf_flush22;			/* 0x00B190 */
+	uint64_t	ce_ure_buf_flush23;			/* 0x00B198 */
+	uint64_t	ce_ure_pcie_control1;			/* 0x00B1A0 */
+	uint64_t	ce_ure_pcie_control2;			/* 0x00B1A8 */
+
+	uint64_t	ce_pad_00B1B0[458];	    /* 0x00B1B0 -- 0x00BFF8 */
+
+	/* Upstream Data Buffer, Port1 */
+	struct ce_ure_maint_ups_dat1_data {
+		uint64_t	data63_0[512];	    /* 0x00C000 -- 0x00CFF8 */
+		uint64_t	data127_64[512];    /* 0x00D000 -- 0x00DFF8 */
+		uint64_t	parity[512];	    /* 0x00E000 -- 0x00EFF8 */
+	} ce_ure_maint_ups_dat1;
+
+	/* Upstream Header Buffer, Port1 */
+	struct ce_ure_maint_ups_hdr1_data {
+		uint64_t	data63_0[512];	    /* 0x00F000 -- 0x00FFF8 */
+		uint64_t	data127_64[512];    /* 0x010000 -- 0x010FF8 */
+		uint64_t	parity[512];	    /* 0x011000 -- 0x011FF8 */
+	} ce_ure_maint_ups_hdr1;
+
+	/* Upstream Data Buffer, Port2 */
+	struct ce_ure_maint_ups_dat2_data {
+		uint64_t	data63_0[512];	    /* 0x012000 -- 0x012FF8 */
+		uint64_t	data127_64[512];    /* 0x013000 -- 0x013FF8 */
+		uint64_t	parity[512];	    /* 0x014000 -- 0x014FF8 */
+	} ce_ure_maint_ups_dat2;
+
+	/* Upstream Header Buffer, Port2 */
+	struct ce_ure_maint_ups_hdr2_data {
+		uint64_t	data63_0[512];	    /* 0x015000 -- 0x015FF8 */
+		uint64_t	data127_64[512];    /* 0x016000 -- 0x016FF8 */
+		uint64_t	parity[512];	    /* 0x017000 -- 0x017FF8 */
+	} ce_ure_maint_ups_hdr2;
+
+	/* Downstream Data Buffer */
+	struct ce_ure_maint_dns_dat_data {
+		uint64_t	data63_0[512];	    /* 0x018000 -- 0x018FF8 */
+		uint64_t	data127_64[512];    /* 0x019000 -- 0x019FF8 */
+		uint64_t	parity[512];	    /* 0x01A000 -- 0x01AFF8 */
+	} ce_ure_maint_dns_dat;
+
+	/* Downstream Header Buffer */
+	struct	ce_ure_maint_dns_hdr_data {
+		uint64_t	data31_0[64];	    /* 0x01B000 -- 0x01B1F8 */
+		uint64_t	data95_32[64];	    /* 0x01B200 -- 0x01B3F8 */
+		uint64_t	parity[64];	    /* 0x01B400 -- 0x01B5F8 */
+	} ce_ure_maint_dns_hdr;
+
+	/* RCI Buffer Data */
+	struct	ce_ure_maint_rci_data {
+		uint64_t	data41_0[64];	    /* 0x01B600 -- 0x01B7F8 */
+		uint64_t	data69_42[64];	    /* 0x01B800 -- 0x01B9F8 */
+	} ce_ure_maint_rci;
+
+	/* Response Queue */
+	uint64_t	ce_ure_maint_rspq[64];	    /* 0x01BA00 -- 0x01BBF8 */
+
+	uint64_t	ce_pad_01C000[4224];	    /* 0x01BC00 -- 0x023FF8 */
+
+	/* Admin Build-a-Packet Buffer */
+	struct	ce_adm_maint_bap_buf_data {
+		uint64_t	data63_0[258];	    /* 0x024000 -- 0x024808 */
+		uint64_t	data127_64[258];    /* 0x024810 -- 0x025018 */
+		uint64_t	parity[258];	    /* 0x025020 -- 0x025828 */
+	} ce_adm_maint_bap_buf;
+
+	uint64_t	ce_pad_025830[5370];	    /* 0x025830 -- 0x02FFF8 */
+
+	/* URE: 40bit PMU ATE Buffer */		    /* 0x030000 -- 0x037FF8 */
+	uint64_t	ce_ure_ate40[TIOCE_NUM_M40_ATES];
+
+	/* URE: 32/40bit PMU ATE Buffer */	    /* 0x038000 -- 0x03BFF8 */
+	uint64_t	ce_ure_ate3240[TIOCE_NUM_M3240_ATES];
+
+	uint64_t	ce_pad_03C000[2050];	    /* 0x03C000 -- 0x040008 */
+
+	/*
+	 * DRE: Down Stream Request Engine
+         */
+	uint64_t	ce_dre_dyn_credit_status1;		/* 0x040010 */
+	uint64_t	ce_dre_dyn_credit_status2;		/* 0x040018 */
+	uint64_t	ce_dre_last_credit_status1;		/* 0x040020 */
+	uint64_t	ce_dre_last_credit_status2;		/* 0x040028 */
+	uint64_t	ce_dre_credit_limit1;			/* 0x040030 */
+	uint64_t	ce_dre_credit_limit2;			/* 0x040038 */
+	uint64_t	ce_dre_force_credit1;			/* 0x040040 */
+	uint64_t	ce_dre_force_credit2;			/* 0x040048 */
+	uint64_t	ce_dre_debug_mux1;			/* 0x040050 */
+	uint64_t	ce_dre_debug_mux2;			/* 0x040058 */
+	uint64_t	ce_dre_ssp_err_cmd_wrd;			/* 0x040060 */
+	uint64_t	ce_dre_ssp_err_addr;			/* 0x040068 */
+	uint64_t	ce_dre_comp_err_cmd_wrd;		/* 0x040070 */
+	uint64_t	ce_dre_comp_err_addr;			/* 0x040078 */
+	uint64_t	ce_dre_req_status;			/* 0x040080 */
+	uint64_t	ce_dre_config1;				/* 0x040088 */
+	uint64_t	ce_dre_config2;				/* 0x040090 */
+	uint64_t	ce_dre_config_req_status;		/* 0x040098 */
+	uint64_t	ce_pad_0400A0[12];	    /* 0x0400A0 -- 0x0400F8 */
+	uint64_t	ce_dre_dyn_fifo;			/* 0x040100 */
+	uint64_t	ce_pad_040108[3];	    /* 0x040108 -- 0x040118 */
+	uint64_t	ce_dre_last_fifo;			/* 0x040120 */
+
+	uint64_t	ce_pad_040128[27];	    /* 0x040128 -- 0x0401F8 */
+
+	/* DRE Downstream Head Queue */
+	struct	ce_dre_maint_ds_head_queue {
+		uint64_t	data63_0[32];	    /* 0x040200 -- 0x0402F8 */
+		uint64_t	data127_64[32];	    /* 0x040300 -- 0x0403F8 */
+		uint64_t	parity[32];	    /* 0x040400 -- 0x0404F8 */
+	} ce_dre_maint_ds_head_q;
+
+	uint64_t	ce_pad_040500[352];	    /* 0x040500 -- 0x040FF8 */
+
+	/* DRE Downstream Data Queue */
+	struct	ce_dre_maint_ds_data_queue {
+		uint64_t	data63_0[256];	    /* 0x041000 -- 0x0417F8 */
+		uint64_t	ce_pad_041800[256]; /* 0x041800 -- 0x041FF8 */
+		uint64_t	data127_64[256];    /* 0x042000 -- 0x0427F8 */
+		uint64_t	ce_pad_042800[256]; /* 0x042800 -- 0x042FF8 */
+		uint64_t	parity[256];	    /* 0x043000 -- 0x0437F8 */
+		uint64_t	ce_pad_043800[256]; /* 0x043800 -- 0x043FF8 */
+	} ce_dre_maint_ds_data_q;
+
+	/* DRE URE Upstream Response Queue */
+	struct	ce_dre_maint_ure_us_rsp_queue {
+		uint64_t	data63_0[8];	    /* 0x044000 -- 0x044038 */
+		uint64_t	ce_pad_044040[24];  /* 0x044040 -- 0x0440F8 */
+		uint64_t	data127_64[8];      /* 0x044100 -- 0x044138 */
+		uint64_t	ce_pad_044140[24];  /* 0x044140 -- 0x0441F8 */
+		uint64_t	parity[8];	    /* 0x044200 -- 0x044238 */
+		uint64_t	ce_pad_044240[24];  /* 0x044240 -- 0x0442F8 */
+	} ce_dre_maint_ure_us_rsp_q;
+
+	uint64_t 	ce_dre_maint_us_wrt_rsp[32];/* 0x044300 -- 0x0443F8 */
+
+	uint64_t	ce_end_of_struct;			/* 0x044400 */
+} tioce_t;
+
+
+/* ce_adm_int_mask/ce_adm_int_status register bit defines */
+#define CE_ADM_INT_CE_ERROR_SHFT		0
+#define CE_ADM_INT_LSI1_IP_ERROR_SHFT		1
+#define CE_ADM_INT_LSI2_IP_ERROR_SHFT		2
+#define CE_ADM_INT_PCIE_ERROR_SHFT		3
+#define CE_ADM_INT_PORT1_HOTPLUG_EVENT_SHFT	4
+#define CE_ADM_INT_PORT2_HOTPLUG_EVENT_SHFT	5
+#define CE_ADM_INT_PCIE_PORT1_DEV_A_SHFT	6
+#define CE_ADM_INT_PCIE_PORT1_DEV_B_SHFT	7
+#define CE_ADM_INT_PCIE_PORT1_DEV_C_SHFT	8
+#define CE_ADM_INT_PCIE_PORT1_DEV_D_SHFT	9
+#define CE_ADM_INT_PCIE_PORT2_DEV_A_SHFT	10
+#define CE_ADM_INT_PCIE_PORT2_DEV_B_SHFT	11
+#define CE_ADM_INT_PCIE_PORT2_DEV_C_SHFT	12
+#define CE_ADM_INT_PCIE_PORT2_DEV_D_SHFT	13
+#define CE_ADM_INT_PCIE_MSG_SHFT		14 /*see int_dest_14*/
+#define CE_ADM_INT_PCIE_MSG_SLOT_0_SHFT		14
+#define CE_ADM_INT_PCIE_MSG_SLOT_1_SHFT		15
+#define CE_ADM_INT_PCIE_MSG_SLOT_2_SHFT		16
+#define CE_ADM_INT_PCIE_MSG_SLOT_3_SHFT		17
+#define CE_ADM_INT_PORT1_PM_PME_MSG_SHFT	22
+#define CE_ADM_INT_PORT2_PM_PME_MSG_SHFT	23
+
+/* ce_adm_force_int register bit defines */
+#define CE_ADM_FORCE_INT_PCIE_PORT1_DEV_A_SHFT	0
+#define CE_ADM_FORCE_INT_PCIE_PORT1_DEV_B_SHFT	1
+#define CE_ADM_FORCE_INT_PCIE_PORT1_DEV_C_SHFT	2
+#define CE_ADM_FORCE_INT_PCIE_PORT1_DEV_D_SHFT	3
+#define CE_ADM_FORCE_INT_PCIE_PORT2_DEV_A_SHFT	4
+#define CE_ADM_FORCE_INT_PCIE_PORT2_DEV_B_SHFT	5
+#define CE_ADM_FORCE_INT_PCIE_PORT2_DEV_C_SHFT	6
+#define CE_ADM_FORCE_INT_PCIE_PORT2_DEV_D_SHFT	7
+#define CE_ADM_FORCE_INT_ALWAYS_SHFT		8
+
+/* ce_adm_int_dest register bit masks & shifts */
+#define INTR_VECTOR_SHFT			56
+
+/* ce_adm_error_mask and ce_adm_error_summary register bit masks */
+#define CE_ADM_ERR_CRM_SSP_REQ_INVALID			(0x1ULL <<  0)
+#define CE_ADM_ERR_SSP_REQ_HEADER			(0x1ULL <<  1)
+#define CE_ADM_ERR_SSP_RSP_HEADER			(0x1ULL <<  2)
+#define CE_ADM_ERR_SSP_PROTOCOL_ERROR			(0x1ULL <<  3)
+#define CE_ADM_ERR_SSP_SBE				(0x1ULL <<  4)
+#define CE_ADM_ERR_SSP_MBE				(0x1ULL <<  5)
+#define CE_ADM_ERR_CXM_CREDIT_OFLOW			(0x1ULL <<  6)
+#define CE_ADM_ERR_DRE_SSP_REQ_INVAL			(0x1ULL <<  7)
+#define CE_ADM_ERR_SSP_REQ_LONG				(0x1ULL <<  8)
+#define CE_ADM_ERR_SSP_REQ_OFLOW			(0x1ULL <<  9)
+#define CE_ADM_ERR_SSP_REQ_SHORT			(0x1ULL << 10)
+#define CE_ADM_ERR_SSP_REQ_SIDEBAND			(0x1ULL << 11)
+#define CE_ADM_ERR_SSP_REQ_ADDR_ERR			(0x1ULL << 12)
+#define CE_ADM_ERR_SSP_REQ_BAD_BE			(0x1ULL << 13)
+#define CE_ADM_ERR_PCIE_COMPL_TIMEOUT			(0x1ULL << 14)
+#define CE_ADM_ERR_PCIE_UNEXP_COMPL			(0x1ULL << 15)
+#define CE_ADM_ERR_PCIE_ERR_COMPL			(0x1ULL << 16)
+#define CE_ADM_ERR_DRE_CREDIT_OFLOW			(0x1ULL << 17)
+#define CE_ADM_ERR_DRE_SRAM_PE				(0x1ULL << 18)
+#define CE_ADM_ERR_SSP_RSP_INVALID			(0x1ULL << 19)
+#define CE_ADM_ERR_SSP_RSP_LONG				(0x1ULL << 20)
+#define CE_ADM_ERR_SSP_RSP_SHORT			(0x1ULL << 21)
+#define CE_ADM_ERR_SSP_RSP_SIDEBAND			(0x1ULL << 22)
+#define CE_ADM_ERR_URE_SSP_RSP_UNEXP			(0x1ULL << 23)
+#define CE_ADM_ERR_URE_SSP_WR_REQ_TIMEOUT		(0x1ULL << 24)
+#define CE_ADM_ERR_URE_SSP_RD_REQ_TIMEOUT		(0x1ULL << 25)
+#define CE_ADM_ERR_URE_ATE3240_PAGE_FAULT		(0x1ULL << 26)
+#define CE_ADM_ERR_URE_ATE40_PAGE_FAULT			(0x1ULL << 27)
+#define CE_ADM_ERR_URE_CREDIT_OFLOW			(0x1ULL << 28)
+#define CE_ADM_ERR_URE_SRAM_PE				(0x1ULL << 29)
+#define CE_ADM_ERR_ADM_SSP_RSP_UNEXP			(0x1ULL << 30)
+#define CE_ADM_ERR_ADM_SSP_REQ_TIMEOUT			(0x1ULL << 31)
+#define CE_ADM_ERR_MMR_ACCESS_ERROR			(0x1ULL << 32)
+#define CE_ADM_ERR_MMR_ADDR_ERROR			(0x1ULL << 33)
+#define CE_ADM_ERR_ADM_CREDIT_OFLOW			(0x1ULL << 34)
+#define CE_ADM_ERR_ADM_SRAM_PE				(0x1ULL << 35)
+#define CE_ADM_ERR_DTL1_MIN_PDATA_CREDIT_ERR		(0x1ULL << 36)
+#define CE_ADM_ERR_DTL1_INF_COMPL_CRED_UPDT_ERR		(0x1ULL << 37)
+#define CE_ADM_ERR_DTL1_INF_POSTED_CRED_UPDT_ERR	(0x1ULL << 38)
+#define CE_ADM_ERR_DTL1_INF_NPOSTED_CRED_UPDT_ERR	(0x1ULL << 39)
+#define CE_ADM_ERR_DTL1_COMP_HD_CRED_MAX_ERR		(0x1ULL << 40)
+#define CE_ADM_ERR_DTL1_COMP_D_CRED_MAX_ERR		(0x1ULL << 41)
+#define CE_ADM_ERR_DTL1_NPOSTED_HD_CRED_MAX_ERR		(0x1ULL << 42)
+#define CE_ADM_ERR_DTL1_NPOSTED_D_CRED_MAX_ERR		(0x1ULL << 43)
+#define CE_ADM_ERR_DTL1_POSTED_HD_CRED_MAX_ERR		(0x1ULL << 44)
+#define CE_ADM_ERR_DTL1_POSTED_D_CRED_MAX_ERR		(0x1ULL << 45)
+#define CE_ADM_ERR_DTL2_MIN_PDATA_CREDIT_ERR		(0x1ULL << 46)
+#define CE_ADM_ERR_DTL2_INF_COMPL_CRED_UPDT_ERR		(0x1ULL << 47)
+#define CE_ADM_ERR_DTL2_INF_POSTED_CRED_UPDT_ERR	(0x1ULL << 48)
+#define CE_ADM_ERR_DTL2_INF_NPOSTED_CRED_UPDT_ERR	(0x1ULL << 49)
+#define CE_ADM_ERR_DTL2_COMP_HD_CRED_MAX_ERR		(0x1ULL << 50)
+#define CE_ADM_ERR_DTL2_COMP_D_CRED_MAX_ERR		(0x1ULL << 51)
+#define CE_ADM_ERR_DTL2_NPOSTED_HD_CRED_MAX_ERR		(0x1ULL << 52)
+#define CE_ADM_ERR_DTL2_NPOSTED_D_CRED_MAX_ERR		(0x1ULL << 53)
+#define CE_ADM_ERR_DTL2_POSTED_HD_CRED_MAX_ERR		(0x1ULL << 54)
+#define CE_ADM_ERR_DTL2_POSTED_D_CRED_MAX_ERR		(0x1ULL << 55)
+#define CE_ADM_ERR_PORT1_PCIE_COR_ERR			(0x1ULL << 56)
+#define CE_ADM_ERR_PORT1_PCIE_NFAT_ERR			(0x1ULL << 57)
+#define CE_ADM_ERR_PORT1_PCIE_FAT_ERR			(0x1ULL << 58)
+#define CE_ADM_ERR_PORT2_PCIE_COR_ERR			(0x1ULL << 59)
+#define CE_ADM_ERR_PORT2_PCIE_NFAT_ERR			(0x1ULL << 60)
+#define CE_ADM_ERR_PORT2_PCIE_FAT_ERR			(0x1ULL << 61)
+
+/* ce_adm_ure_ups_buf_barrier_flush register bit masks and shifts */
+#define FLUSH_SEL_PORT1_PIPE0_SHFT	0
+#define FLUSH_SEL_PORT1_PIPE1_SHFT	4
+#define FLUSH_SEL_PORT1_PIPE2_SHFT	8
+#define FLUSH_SEL_PORT1_PIPE3_SHFT	12
+#define FLUSH_SEL_PORT2_PIPE0_SHFT	16
+#define FLUSH_SEL_PORT2_PIPE1_SHFT	20
+#define FLUSH_SEL_PORT2_PIPE2_SHFT	24
+#define FLUSH_SEL_PORT2_PIPE3_SHFT	28
+
+/* ce_dre_config1 register bit masks and shifts */
+#define CE_DRE_RO_ENABLE		(0x1ULL << 0)
+#define CE_DRE_DYN_RO_ENABLE		(0x1ULL << 1)
+#define CE_DRE_SUP_CONFIG_COMP_ERROR	(0x1ULL << 2)
+#define CE_DRE_SUP_IO_COMP_ERROR	(0x1ULL << 3)
+#define CE_DRE_ADDR_MODE_SHFT		4
+
+/* ce_dre_config_req_status register bit masks */
+#define CE_DRE_LAST_CONFIG_COMPLETION	(0x7ULL << 0)
+#define CE_DRE_DOWNSTREAM_CONFIG_ERROR	(0x1ULL << 3)
+#define CE_DRE_CONFIG_COMPLETION_VALID	(0x1ULL << 4)
+#define CE_DRE_CONFIG_REQUEST_ACTIVE	(0x1ULL << 5)
+
+/* ce_ure_control register bit masks & shifts */
+#define CE_URE_RD_MRG_ENABLE		(0x1ULL << 0)
+#define CE_URE_WRT_MRG_ENABLE1		(0x1ULL << 4)
+#define CE_URE_WRT_MRG_ENABLE2		(0x1ULL << 5)
+#define CE_URE_RSPQ_BYPASS_DISABLE	(0x1ULL << 24)
+#define CE_URE_UPS_DAT1_PAR_DISABLE	(0x1ULL << 32)
+#define CE_URE_UPS_HDR1_PAR_DISABLE	(0x1ULL << 33)
+#define CE_URE_UPS_DAT2_PAR_DISABLE	(0x1ULL << 34)
+#define CE_URE_UPS_HDR2_PAR_DISABLE	(0x1ULL << 35)
+#define CE_URE_ATE_PAR_DISABLE		(0x1ULL << 36)
+#define CE_URE_RCI_PAR_DISABLE		(0x1ULL << 37)
+#define CE_URE_RSPQ_PAR_DISABLE		(0x1ULL << 38)
+#define CE_URE_DNS_DAT_PAR_DISABLE	(0x1ULL << 39)
+#define CE_URE_DNS_HDR_PAR_DISABLE	(0x1ULL << 40)
+#define CE_URE_MALFORM_DISABLE		(0x1ULL << 44)
+#define CE_URE_UNSUP_DISABLE		(0x1ULL << 45)
+
+/* ce_ure_page_map register bit masks & shifts */
+#define CE_URE_ATE3240_ENABLE		(0x1ULL << 0)
+#define CE_URE_ATE40_ENABLE 		(0x1ULL << 1)
+#define CE_URE_PAGESIZE_SHFT		4
+#define CE_URE_PAGESIZE_MASK		(0x7ULL << CE_URE_PAGESIZE_SHFT)
+#define CE_URE_4K_PAGESIZE		(0x0ULL << CE_URE_PAGESIZE_SHFT)
+#define CE_URE_16K_PAGESIZE		(0x1ULL << CE_URE_PAGESIZE_SHFT)
+#define CE_URE_64K_PAGESIZE		(0x2ULL << CE_URE_PAGESIZE_SHFT)
+#define CE_URE_128K_PAGESIZE		(0x3ULL << CE_URE_PAGESIZE_SHFT)
+#define CE_URE_256K_PAGESIZE		(0x4ULL << CE_URE_PAGESIZE_SHFT)
+
+/* ce_ure_pipe_sel register bit masks & shifts */
+#define PKT_TRAFIC_SHRT			16
+#define BUS_SRC_ID_SHFT			8
+#define DEV_SRC_ID_SHFT			3
+#define FNC_SRC_ID_SHFT			0
+#define CE_URE_TC_MASK			(0x07ULL << PKT_TRAFIC_SHRT)
+#define CE_URE_BUS_MASK			(0xFFULL << BUS_SRC_ID_SHFT)
+#define CE_URE_DEV_MASK			(0x1FULL << DEV_SRC_ID_SHFT)
+#define CE_URE_FNC_MASK			(0x07ULL << FNC_SRC_ID_SHFT)
+#define CE_URE_PIPE_BUS(b)		(((uint64_t)(b) << BUS_SRC_ID_SHFT) & \
+					 CE_URE_BUS_MASK)
+#define CE_URE_PIPE_DEV(d)		(((uint64_t)(d) << DEV_SRC_ID_SHFT) & \
+					 CE_URE_DEV_MASK)
+#define CE_URE_PIPE_FNC(f)		(((uint64_t)(f) << FNC_SRC_ID_SHFT) & \
+					 CE_URE_FNC_MASK)
+
+#define CE_URE_SEL1_SHFT		0
+#define CE_URE_SEL2_SHFT		20
+#define CE_URE_SEL3_SHFT		40
+#define CE_URE_SEL1_MASK		(0x7FFFFULL << CE_URE_SEL1_SHFT)
+#define CE_URE_SEL2_MASK		(0x7FFFFULL << CE_URE_SEL2_SHFT)
+#define CE_URE_SEL3_MASK		(0x7FFFFULL << CE_URE_SEL3_SHFT)
+
+
+/* ce_ure_pipe_mask register bit masks & shifts */
+#define CE_URE_MASK1_SHFT		0
+#define CE_URE_MASK2_SHFT		20
+#define CE_URE_MASK3_SHFT		40
+#define CE_URE_MASK1_MASK		(0x7FFFFULL << CE_URE_MASK1_SHFT)
+#define CE_URE_MASK2_MASK		(0x7FFFFULL << CE_URE_MASK2_SHFT)
+#define CE_URE_MASK3_MASK		(0x7FFFFULL << CE_URE_MASK3_SHFT)
+
+
+/* ce_ure_pcie_control1 register bit masks & shifts */
+#define CE_URE_SI			(0x1ULL << 0)
+#define CE_URE_ELAL_SHFT		4
+#define CE_URE_ELAL_MASK		(0x7ULL << CE_URE_ELAL_SHFT)
+#define CE_URE_ELAL1_SHFT		8
+#define CE_URE_ELAL1_MASK		(0x7ULL << CE_URE_ELAL1_SHFT)
+#define CE_URE_SCC			(0x1ULL << 12)
+#define CE_URE_PN1_SHFT			16
+#define CE_URE_PN1_MASK			(0xFFULL << CE_URE_PN1_SHFT)
+#define CE_URE_PN2_SHFT			24
+#define CE_URE_PN2_MASK			(0xFFULL << CE_URE_PN2_SHFT)
+#define CE_URE_PN1_SET(n)		(((uint64_t)(n) << CE_URE_PN1_SHFT) & \
+					 CE_URE_PN1_MASK)
+#define CE_URE_PN2_SET(n)		(((uint64_t)(n) << CE_URE_PN2_SHFT) & \
+					 CE_URE_PN2_MASK)
+
+/* ce_ure_pcie_control2 register bit masks & shifts */
+#define CE_URE_ABP			(0x1ULL << 0)
+#define CE_URE_PCP			(0x1ULL << 1)
+#define CE_URE_MSP			(0x1ULL << 2)
+#define CE_URE_AIP			(0x1ULL << 3)
+#define CE_URE_PIP			(0x1ULL << 4)
+#define CE_URE_HPS			(0x1ULL << 5)
+#define CE_URE_HPC			(0x1ULL << 6)
+#define CE_URE_SPLV_SHFT		7
+#define CE_URE_SPLV_MASK		(0xFFULL << CE_URE_SPLV_SHFT)
+#define CE_URE_SPLS_SHFT		15
+#define CE_URE_SPLS_MASK		(0x3ULL << CE_URE_SPLS_SHFT)
+#define CE_URE_PSN1_SHFT		19
+#define CE_URE_PSN1_MASK		(0x1FFFULL << CE_URE_PSN1_SHFT)
+#define CE_URE_PSN2_SHFT		32
+#define CE_URE_PSN2_MASK		(0x1FFFULL << CE_URE_PSN2_SHFT)
+#define CE_URE_PSN1_SET(n)		(((uint64_t)(n) << CE_URE_PSN1_SHFT) & \
+					 CE_URE_PSN1_MASK)
+#define CE_URE_PSN2_SET(n)		(((uint64_t)(n) << CE_URE_PSN2_SHFT) & \
+					 CE_URE_PSN2_MASK)
+
+/*
+ * PIO address space ranges for CE
+ */
+
+/* Local CE Registers Space */
+#define CE_PIO_MMR			0x00000000
+#define CE_PIO_MMR_LEN			0x04000000
+
+/* PCI Compatible Config Space */
+#define CE_PIO_CONFIG_SPACE		0x04000000
+#define CE_PIO_CONFIG_SPACE_LEN		0x04000000
+
+/* PCI I/O Space Alias */
+#define CE_PIO_IO_SPACE_ALIAS		0x08000000
+#define CE_PIO_IO_SPACE_ALIAS_LEN	0x08000000
+
+/* PCI Enhanced Config Space */
+#define CE_PIO_E_CONFIG_SPACE		0x10000000
+#define CE_PIO_E_CONFIG_SPACE_LEN	0x10000000
+
+/* PCI I/O Space */
+#define CE_PIO_IO_SPACE			0x100000000
+#define CE_PIO_IO_SPACE_LEN		0x100000000
+
+/* PCI MEM Space */
+#define CE_PIO_MEM_SPACE		0x200000000
+#define CE_PIO_MEM_SPACE_LEN		TIO_HWIN_SIZE
+
+
+/*
+ * CE PCI Enhanced Config Space shifts & masks
+ */
+#define CE_E_CONFIG_BUS_SHFT		20
+#define CE_E_CONFIG_BUS_MASK		(0xFF << CE_E_CONFIG_BUS_SHFT)
+#define CE_E_CONFIG_DEVICE_SHFT		15
+#define CE_E_CONFIG_DEVICE_MASK		(0x1F << CE_E_CONFIG_DEVICE_SHFT)
+#define CE_E_CONFIG_FUNC_SHFT		12
+#define CE_E_CONFIG_FUNC_MASK		(0x7  << CE_E_CONFIG_FUNC_SHFT)
+
+#endif /* __ASM_IA64_SN_TIOCE_H__ */
diff --git a/include/asm-ia64/sn/tioce_provider.h b/include/asm-ia64/sn/tioce_provider.h
new file mode 100644
index 0000000..7f63dec
--- /dev/null
+++ b/include/asm-ia64/sn/tioce_provider.h
@@ -0,0 +1,66 @@
+/**************************************************************************
+ *             Copyright (C) 2005, Silicon Graphics, Inc.                 *
+ *									  *
+ *  These coded instructions, statements, and computer programs	 contain  *
+ *  unpublished	 proprietary  information of Silicon Graphics, Inc., and  *
+ *  are protected by Federal copyright law.  They  may	not be disclosed  *
+ *  to	third  parties	or copied or duplicated in any form, in whole or  *
+ *  in part, without the prior written consent of Silicon Graphics, Inc.  *
+ *									  *
+ **************************************************************************/
+
+#ifndef _ASM_IA64_SN_CE_PROVIDER_H
+#define _ASM_IA64_SN_CE_PROVIDER_H
+
+#include <asm/sn/pcibus_provider_defs.h>
+#include <asm/sn/tioce.h>
+
+/*
+ * Common TIOCE structure shared between the prom and kernel
+ *
+ * DO NOT CHANGE THIS STRUCT WITHOUT MAKING CORRESPONDING CHANGES TO THE
+ * PROM VERSION.
+ */
+struct tioce_common {
+	struct pcibus_bussoft	ce_pcibus;	/* common pciio header */
+
+	uint32_t		ce_rev;
+	uint64_t		ce_kernel_private;
+	uint64_t		ce_prom_private;
+};
+
+struct tioce_kernel {
+	struct tioce_common	*ce_common;
+	spinlock_t		ce_lock;
+	struct list_head	ce_dmamap_list;
+
+	uint64_t		ce_ate40_shadow[TIOCE_NUM_M40_ATES];
+	uint64_t		ce_ate3240_shadow[TIOCE_NUM_M3240_ATES];
+	uint32_t		ce_ate3240_pagesize;
+
+	uint8_t			ce_port1_secondary;
+
+	/* per-port resources */
+	struct {
+		int 		dirmap_refcnt;
+		uint64_t	dirmap_shadow;
+	} ce_port[TIOCE_NUM_PORTS];
+};
+
+struct tioce_dmamap {
+	struct list_head	ce_dmamap_list;	/* headed by tioce_kernel */
+	uint32_t		refcnt;
+
+	uint64_t		nbytes;		/* # bytes mapped */
+
+	uint64_t		ct_start;	/* coretalk start address */
+	uint64_t		pci_start;	/* bus start address */
+
+	uint64_t		*ate_hw;	/* hw ptr of first ate in map */
+	uint64_t		*ate_shadow;	/* shadow ptr of firat ate */
+	uint16_t		ate_count;	/* # ate's in the map */
+};
+
+extern int tioce_init_provider(void);
+
+#endif  /* __ASM_IA64_SN_CE_PROVIDER_H */