Linux-2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 1560 insertions, 0 deletions

diff --git a/arch/sparc64/kernel/pci_psycho.c b/arch/sparc64/kernel/pci_psycho.c
new file mode 100644
index 00000000000..3567fa879e1
--- /dev/null
+++ b/arch/sparc64/kernel/pci_psycho.c
@@ -0,0 +1,1560 @@
+/* $Id: pci_psycho.c,v 1.33 2002/02/01 00:58:33 davem Exp $
+ * pci_psycho.c: PSYCHO/U2P specific PCI controller support.
+ *
+ * Copyright (C) 1997, 1998, 1999 David S. Miller (davem@caipfs.rutgers.edu)
+ * Copyright (C) 1998, 1999 Eddie C. Dost   (ecd@skynet.be)
+ * Copyright (C) 1999 Jakub Jelinek   (jakub@redhat.com)
+ */
+
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/pci.h>
+#include <linux/init.h>
+#include <linux/slab.h>
+#include <linux/interrupt.h>
+
+#include <asm/pbm.h>
+#include <asm/iommu.h>
+#include <asm/irq.h>
+#include <asm/starfire.h>
+
+#include "pci_impl.h"
+#include "iommu_common.h"
+
+/* All PSYCHO registers are 64-bits.  The following accessor
+ * routines are how they are accessed.  The REG parameter
+ * is a physical address.
+ */
+#define psycho_read(__reg) \
+({	u64 __ret; \
+	__asm__ __volatile__("ldxa [%1] %2, %0" \
+			     : "=r" (__ret) \
+			     : "r" (__reg), "i" (ASI_PHYS_BYPASS_EC_E) \
+			     : "memory"); \
+	__ret; \
+})
+#define psycho_write(__reg, __val) \
+	__asm__ __volatile__("stxa %0, [%1] %2" \
+			     : /* no outputs */ \
+			     : "r" (__val), "r" (__reg), \
+			       "i" (ASI_PHYS_BYPASS_EC_E) \
+			     : "memory")
+
+/* Misc. PSYCHO PCI controller register offsets and definitions. */
+#define PSYCHO_CONTROL		0x0010UL
+#define  PSYCHO_CONTROL_IMPL	 0xf000000000000000UL /* Implementation of this PSYCHO*/
+#define  PSYCHO_CONTROL_VER	 0x0f00000000000000UL /* Version of this PSYCHO       */
+#define  PSYCHO_CONTROL_MID	 0x00f8000000000000UL /* UPA Module ID of PSYCHO      */
+#define  PSYCHO_CONTROL_IGN	 0x0007c00000000000UL /* Interrupt Group Number       */
+#define  PSYCHO_CONTROL_RESV     0x00003ffffffffff0UL /* Reserved                     */
+#define  PSYCHO_CONTROL_APCKEN	 0x0000000000000008UL /* Address Parity Check Enable  */
+#define  PSYCHO_CONTROL_APERR	 0x0000000000000004UL /* Incoming System Addr Parerr  */
+#define  PSYCHO_CONTROL_IAP	 0x0000000000000002UL /* Invert UPA Parity            */
+#define  PSYCHO_CONTROL_MODE	 0x0000000000000001UL /* PSYCHO clock mode            */
+#define PSYCHO_PCIA_CTRL	0x2000UL
+#define PSYCHO_PCIB_CTRL	0x4000UL
+#define  PSYCHO_PCICTRL_RESV1	 0xfffffff000000000UL /* Reserved                     */
+#define  PSYCHO_PCICTRL_SBH_ERR	 0x0000000800000000UL /* Streaming byte hole error    */
+#define  PSYCHO_PCICTRL_SERR	 0x0000000400000000UL /* SERR signal asserted         */
+#define  PSYCHO_PCICTRL_SPEED	 0x0000000200000000UL /* PCI speed (1 is U2P clock)   */
+#define  PSYCHO_PCICTRL_RESV2	 0x00000001ffc00000UL /* Reserved                     */
+#define  PSYCHO_PCICTRL_ARB_PARK 0x0000000000200000UL /* PCI arbitration parking      */
+#define  PSYCHO_PCICTRL_RESV3	 0x00000000001ff800UL /* Reserved                     */
+#define  PSYCHO_PCICTRL_SBH_INT	 0x0000000000000400UL /* Streaming byte hole int enab */
+#define  PSYCHO_PCICTRL_WEN	 0x0000000000000200UL /* Power Mgmt Wake Enable       */
+#define  PSYCHO_PCICTRL_EEN	 0x0000000000000100UL /* PCI Error Interrupt Enable   */
+#define  PSYCHO_PCICTRL_RESV4	 0x00000000000000c0UL /* Reserved                     */
+#define  PSYCHO_PCICTRL_AEN	 0x000000000000003fUL /* PCI DVMA Arbitration Enable  */
+
+/* U2P Programmer's Manual, page 13-55, configuration space
+ * address format:
+ * 
+ *  32             24 23 16 15    11 10       8 7   2  1 0
+ * ---------------------------------------------------------
+ * |0 0 0 0 0 0 0 0 1| bus | device | function | reg | 0 0 |
+ * ---------------------------------------------------------
+ */
+#define PSYCHO_CONFIG_BASE(PBM)	\
+	((PBM)->config_space | (1UL << 24))
+#define PSYCHO_CONFIG_ENCODE(BUS, DEVFN, REG)	\
+	(((unsigned long)(BUS)   << 16) |	\
+	 ((unsigned long)(DEVFN) << 8)  |	\
+	 ((unsigned long)(REG)))
+
+static void *psycho_pci_config_mkaddr(struct pci_pbm_info *pbm,
+				      unsigned char bus,
+				      unsigned int devfn,
+				      int where)
+{
+	if (!pbm)
+		return NULL;
+	return (void *)
+		(PSYCHO_CONFIG_BASE(pbm) |
+		 PSYCHO_CONFIG_ENCODE(bus, devfn, where));
+}
+
+static int psycho_out_of_range(struct pci_pbm_info *pbm,
+			       unsigned char bus,
+			       unsigned char devfn)
+{
+	return ((pbm->parent == 0) ||
+		((pbm == &pbm->parent->pbm_B) &&
+		 (bus == pbm->pci_first_busno) &&
+		 PCI_SLOT(devfn) > 8) ||
+		((pbm == &pbm->parent->pbm_A) &&
+		 (bus == pbm->pci_first_busno) &&
+		 PCI_SLOT(devfn) > 8));
+}
+
+/* PSYCHO PCI configuration space accessors. */
+
+static int psycho_read_pci_cfg(struct pci_bus *bus_dev, unsigned int devfn,
+			       int where, int size, u32 *value)
+{
+	struct pci_pbm_info *pbm = bus_dev->sysdata;
+	unsigned char bus = bus_dev->number;
+	u32 *addr;
+	u16 tmp16;
+	u8 tmp8;
+
+	switch (size) {
+	case 1:
+		*value = 0xff;
+		break;
+	case 2:
+		*value = 0xffff;
+		break;
+	case 4:
+		*value = 0xffffffff;
+		break;
+	}
+
+	addr = psycho_pci_config_mkaddr(pbm, bus, devfn, where);
+	if (!addr)
+		return PCIBIOS_SUCCESSFUL;
+
+	if (psycho_out_of_range(pbm, bus, devfn))
+		return PCIBIOS_SUCCESSFUL;
+	switch (size) {
+	case 1:
+		pci_config_read8((u8 *)addr, &tmp8);
+		*value = (u32) tmp8;
+		break;
+
+	case 2:
+		if (where & 0x01) {
+			printk("pci_read_config_word: misaligned reg [%x]\n",
+			       where);
+			return PCIBIOS_SUCCESSFUL;
+		}
+		pci_config_read16((u16 *)addr, &tmp16);
+		*value = (u32) tmp16;
+		break;
+
+	case 4:
+		if (where & 0x03) {
+			printk("pci_read_config_dword: misaligned reg [%x]\n",
+			       where);
+			return PCIBIOS_SUCCESSFUL;
+		}
+		pci_config_read32(addr, value);
+		break;
+	}
+	return PCIBIOS_SUCCESSFUL;
+}
+
+static int psycho_write_pci_cfg(struct pci_bus *bus_dev, unsigned int devfn,
+				int where, int size, u32 value)
+{
+	struct pci_pbm_info *pbm = bus_dev->sysdata;
+	unsigned char bus = bus_dev->number;
+	u32 *addr;
+
+	addr = psycho_pci_config_mkaddr(pbm, bus, devfn, where);
+	if (!addr)
+		return PCIBIOS_SUCCESSFUL;
+
+	if (psycho_out_of_range(pbm, bus, devfn))
+		return PCIBIOS_SUCCESSFUL;
+
+	switch (size) {
+	case 1:
+		pci_config_write8((u8 *)addr, value);
+		break;
+
+	case 2:
+		if (where & 0x01) {
+			printk("pci_write_config_word: misaligned reg [%x]\n",
+			       where);
+			return PCIBIOS_SUCCESSFUL;
+		}
+		pci_config_write16((u16 *)addr, value);
+		break;
+
+	case 4:
+		if (where & 0x03) {
+			printk("pci_write_config_dword: misaligned reg [%x]\n",
+			       where);
+			return PCIBIOS_SUCCESSFUL;
+		}
+		pci_config_write32(addr, value);
+	}
+	return PCIBIOS_SUCCESSFUL;
+}
+
+static struct pci_ops psycho_ops = {
+	.read =		psycho_read_pci_cfg,
+	.write =	psycho_write_pci_cfg,
+};
+
+/* PSYCHO interrupt mapping support. */
+#define PSYCHO_IMAP_A_SLOT0	0x0c00UL
+#define PSYCHO_IMAP_B_SLOT0	0x0c20UL
+static unsigned long psycho_pcislot_imap_offset(unsigned long ino)
+{
+	unsigned int bus =  (ino & 0x10) >> 4;
+	unsigned int slot = (ino & 0x0c) >> 2;
+
+	if (bus == 0)
+		return PSYCHO_IMAP_A_SLOT0 + (slot * 8);
+	else
+		return PSYCHO_IMAP_B_SLOT0 + (slot * 8);
+}
+
+#define PSYCHO_IMAP_SCSI	0x1000UL
+#define PSYCHO_IMAP_ETH		0x1008UL
+#define PSYCHO_IMAP_BPP		0x1010UL
+#define PSYCHO_IMAP_AU_REC	0x1018UL
+#define PSYCHO_IMAP_AU_PLAY	0x1020UL
+#define PSYCHO_IMAP_PFAIL	0x1028UL
+#define PSYCHO_IMAP_KMS		0x1030UL
+#define PSYCHO_IMAP_FLPY	0x1038UL
+#define PSYCHO_IMAP_SHW		0x1040UL
+#define PSYCHO_IMAP_KBD		0x1048UL
+#define PSYCHO_IMAP_MS		0x1050UL
+#define PSYCHO_IMAP_SER		0x1058UL
+#define PSYCHO_IMAP_TIM0	0x1060UL
+#define PSYCHO_IMAP_TIM1	0x1068UL
+#define PSYCHO_IMAP_UE		0x1070UL
+#define PSYCHO_IMAP_CE		0x1078UL
+#define PSYCHO_IMAP_A_ERR	0x1080UL
+#define PSYCHO_IMAP_B_ERR	0x1088UL
+#define PSYCHO_IMAP_PMGMT	0x1090UL
+#define PSYCHO_IMAP_GFX		0x1098UL
+#define PSYCHO_IMAP_EUPA	0x10a0UL
+
+static unsigned long __onboard_imap_off[] = {
+/*0x20*/	PSYCHO_IMAP_SCSI,
+/*0x21*/	PSYCHO_IMAP_ETH,
+/*0x22*/	PSYCHO_IMAP_BPP,
+/*0x23*/	PSYCHO_IMAP_AU_REC,
+/*0x24*/	PSYCHO_IMAP_AU_PLAY,
+/*0x25*/	PSYCHO_IMAP_PFAIL,
+/*0x26*/	PSYCHO_IMAP_KMS,
+/*0x27*/	PSYCHO_IMAP_FLPY,
+/*0x28*/	PSYCHO_IMAP_SHW,
+/*0x29*/	PSYCHO_IMAP_KBD,
+/*0x2a*/	PSYCHO_IMAP_MS,
+/*0x2b*/	PSYCHO_IMAP_SER,
+/*0x2c*/	PSYCHO_IMAP_TIM0,
+/*0x2d*/	PSYCHO_IMAP_TIM1,
+/*0x2e*/	PSYCHO_IMAP_UE,
+/*0x2f*/	PSYCHO_IMAP_CE,
+/*0x30*/	PSYCHO_IMAP_A_ERR,
+/*0x31*/	PSYCHO_IMAP_B_ERR,
+/*0x32*/	PSYCHO_IMAP_PMGMT
+};
+#define PSYCHO_ONBOARD_IRQ_BASE		0x20
+#define PSYCHO_ONBOARD_IRQ_LAST		0x32
+#define psycho_onboard_imap_offset(__ino) \
+	__onboard_imap_off[(__ino) - PSYCHO_ONBOARD_IRQ_BASE]
+
+#define PSYCHO_ICLR_A_SLOT0	0x1400UL
+#define PSYCHO_ICLR_SCSI	0x1800UL
+
+#define psycho_iclr_offset(ino)					      \
+	((ino & 0x20) ? (PSYCHO_ICLR_SCSI + (((ino) & 0x1f) << 3)) :  \
+			(PSYCHO_ICLR_A_SLOT0 + (((ino) & 0x1f)<<3)))
+
+/* PCI PSYCHO INO number to Sparc PIL level. */
+static unsigned char psycho_pil_table[] = {
+/*0x00*/0, 0, 0, 0,	/* PCI A slot 0  Int A, B, C, D */
+/*0x04*/0, 0, 0, 0,	/* PCI A slot 1  Int A, B, C, D */
+/*0x08*/0, 0, 0, 0,	/* PCI A slot 2  Int A, B, C, D */
+/*0x0c*/0, 0, 0, 0,	/* PCI A slot 3  Int A, B, C, D */
+/*0x10*/0, 0, 0, 0,	/* PCI B slot 0  Int A, B, C, D */
+/*0x14*/0, 0, 0, 0,	/* PCI B slot 1  Int A, B, C, D */
+/*0x18*/0, 0, 0, 0,	/* PCI B slot 2  Int A, B, C, D */
+/*0x1c*/0, 0, 0, 0,	/* PCI B slot 3  Int A, B, C, D */
+/*0x20*/4,		/* SCSI				*/
+/*0x21*/5,		/* Ethernet			*/
+/*0x22*/8,		/* Parallel Port		*/
+/*0x23*/13,		/* Audio Record			*/
+/*0x24*/14,		/* Audio Playback		*/
+/*0x25*/15,		/* PowerFail			*/
+/*0x26*/4,		/* second SCSI			*/
+/*0x27*/11,		/* Floppy			*/
+/*0x28*/4,		/* Spare Hardware		*/
+/*0x29*/9,		/* Keyboard			*/
+/*0x2a*/4,		/* Mouse			*/
+/*0x2b*/12,		/* Serial			*/
+/*0x2c*/10,		/* Timer 0			*/
+/*0x2d*/11,		/* Timer 1			*/
+/*0x2e*/15,		/* Uncorrectable ECC		*/
+/*0x2f*/15,		/* Correctable ECC		*/
+/*0x30*/15,		/* PCI Bus A Error		*/
+/*0x31*/15,		/* PCI Bus B Error		*/
+/*0x32*/15,		/* Power Management		*/
+};
+
+static int __init psycho_ino_to_pil(struct pci_dev *pdev, unsigned int ino)
+{
+	int ret;
+
+	ret = psycho_pil_table[ino];
+	if (ret == 0 && pdev == NULL) {
+		ret = 4;
+	} else if (ret == 0) {
+		switch ((pdev->class >> 16) & 0xff) {
+		case PCI_BASE_CLASS_STORAGE:
+			ret = 4;
+			break;
+
+		case PCI_BASE_CLASS_NETWORK:
+			ret = 6;
+			break;
+
+		case PCI_BASE_CLASS_DISPLAY:
+			ret = 9;
+			break;
+
+		case PCI_BASE_CLASS_MULTIMEDIA:
+		case PCI_BASE_CLASS_MEMORY:
+		case PCI_BASE_CLASS_BRIDGE:
+		case PCI_BASE_CLASS_SERIAL:
+			ret = 10;
+			break;
+
+		default:
+			ret = 4;
+			break;
+		};
+	}
+
+	return ret;
+}
+
+static unsigned int __init psycho_irq_build(struct pci_pbm_info *pbm,
+					    struct pci_dev *pdev,
+					    unsigned int ino)
+{
+	struct ino_bucket *bucket;
+	unsigned long imap, iclr;
+	unsigned long imap_off, iclr_off;
+	int pil, inofixup = 0;
+
+	ino &= PCI_IRQ_INO;
+	if (ino < PSYCHO_ONBOARD_IRQ_BASE) {
+		/* PCI slot */
+		imap_off = psycho_pcislot_imap_offset(ino);
+	} else {
+		/* Onboard device */
+		if (ino > PSYCHO_ONBOARD_IRQ_LAST) {
+			prom_printf("psycho_irq_build: Wacky INO [%x]\n", ino);
+			prom_halt();
+		}
+		imap_off = psycho_onboard_imap_offset(ino);
+	}
+
+	/* Now build the IRQ bucket. */
+	pil = psycho_ino_to_pil(pdev, ino);
+
+	if (PIL_RESERVED(pil))
+		BUG();
+
+	imap = pbm->controller_regs + imap_off;
+	imap += 4;
+
+	iclr_off = psycho_iclr_offset(ino);
+	iclr = pbm->controller_regs + iclr_off;
+	iclr += 4;
+
+	if ((ino & 0x20) == 0)
+		inofixup = ino & 0x03;
+
+	bucket = __bucket(build_irq(pil, inofixup, iclr, imap));
+	bucket->flags |= IBF_PCI;
+
+	return __irq(bucket);
+}
+
+/* PSYCHO error handling support. */
+enum psycho_error_type {
+	UE_ERR, CE_ERR, PCI_ERR
+};
+
+/* Helper function of IOMMU error checking, which checks out
+ * the state of the streaming buffers.  The IOMMU lock is
+ * held when this is called.
+ *
+ * For the PCI error case we know which PBM (and thus which
+ * streaming buffer) caused the error, but for the uncorrectable
+ * error case we do not.  So we always check both streaming caches.
+ */
+#define PSYCHO_STRBUF_CONTROL_A 0x2800UL
+#define PSYCHO_STRBUF_CONTROL_B 0x4800UL
+#define  PSYCHO_STRBUF_CTRL_LPTR    0x00000000000000f0UL /* LRU Lock Pointer */
+#define  PSYCHO_STRBUF_CTRL_LENAB   0x0000000000000008UL /* LRU Lock Enable */
+#define  PSYCHO_STRBUF_CTRL_RRDIS   0x0000000000000004UL /* Rerun Disable */
+#define  PSYCHO_STRBUF_CTRL_DENAB   0x0000000000000002UL /* Diagnostic Mode Enable */
+#define  PSYCHO_STRBUF_CTRL_ENAB    0x0000000000000001UL /* Streaming Buffer Enable */
+#define PSYCHO_STRBUF_FLUSH_A   0x2808UL
+#define PSYCHO_STRBUF_FLUSH_B   0x4808UL
+#define PSYCHO_STRBUF_FSYNC_A   0x2810UL
+#define PSYCHO_STRBUF_FSYNC_B   0x4810UL
+#define PSYCHO_STC_DATA_A	0xb000UL
+#define PSYCHO_STC_DATA_B	0xc000UL
+#define PSYCHO_STC_ERR_A	0xb400UL
+#define PSYCHO_STC_ERR_B	0xc400UL
+#define  PSYCHO_STCERR_WRITE	 0x0000000000000002UL	/* Write Error */
+#define  PSYCHO_STCERR_READ	 0x0000000000000001UL	/* Read Error */
+#define PSYCHO_STC_TAG_A	0xb800UL
+#define PSYCHO_STC_TAG_B	0xc800UL
+#define  PSYCHO_STCTAG_PPN	 0x0fffffff00000000UL	/* Physical Page Number */
+#define  PSYCHO_STCTAG_VPN	 0x00000000ffffe000UL	/* Virtual Page Number */
+#define  PSYCHO_STCTAG_VALID	 0x0000000000000002UL	/* Valid */
+#define  PSYCHO_STCTAG_WRITE	 0x0000000000000001UL	/* Writable */
+#define PSYCHO_STC_LINE_A	0xb900UL
+#define PSYCHO_STC_LINE_B	0xc900UL
+#define  PSYCHO_STCLINE_LINDX	 0x0000000001e00000UL	/* LRU Index */
+#define  PSYCHO_STCLINE_SPTR	 0x00000000001f8000UL	/* Dirty Data Start Pointer */
+#define  PSYCHO_STCLINE_LADDR	 0x0000000000007f00UL	/* Line Address */
+#define  PSYCHO_STCLINE_EPTR	 0x00000000000000fcUL	/* Dirty Data End Pointer */
+#define  PSYCHO_STCLINE_VALID	 0x0000000000000002UL	/* Valid */
+#define  PSYCHO_STCLINE_FOFN	 0x0000000000000001UL	/* Fetch Outstanding / Flush Necessary */
+
+static DEFINE_SPINLOCK(stc_buf_lock);
+static unsigned long stc_error_buf[128];
+static unsigned long stc_tag_buf[16];
+static unsigned long stc_line_buf[16];
+
+static void __psycho_check_one_stc(struct pci_controller_info *p,
+				   struct pci_pbm_info *pbm,
+				   int is_pbm_a)
+{
+	struct pci_strbuf *strbuf = &pbm->stc;
+	unsigned long regbase = p->pbm_A.controller_regs;
+	unsigned long err_base, tag_base, line_base;
+	u64 control;
+	int i;
+
+	if (is_pbm_a) {
+		err_base = regbase + PSYCHO_STC_ERR_A;
+		tag_base = regbase + PSYCHO_STC_TAG_A;
+		line_base = regbase + PSYCHO_STC_LINE_A;
+	} else {
+		err_base = regbase + PSYCHO_STC_ERR_B;
+		tag_base = regbase + PSYCHO_STC_TAG_B;
+		line_base = regbase + PSYCHO_STC_LINE_B;
+	}
+
+	spin_lock(&stc_buf_lock);
+
+	/* This is __REALLY__ dangerous.  When we put the
+	 * streaming buffer into diagnostic mode to probe
+	 * it's tags and error status, we _must_ clear all
+	 * of the line tag valid bits before re-enabling
+	 * the streaming buffer.  If any dirty data lives
+	 * in the STC when we do this, we will end up
+	 * invalidating it before it has a chance to reach
+	 * main memory.
+	 */
+	control = psycho_read(strbuf->strbuf_control);
+	psycho_write(strbuf->strbuf_control,
+		     (control | PSYCHO_STRBUF_CTRL_DENAB));
+	for (i = 0; i < 128; i++) {
+		unsigned long val;
+
+		val = psycho_read(err_base + (i * 8UL));
+		psycho_write(err_base + (i * 8UL), 0UL);
+		stc_error_buf[i] = val;
+	}
+	for (i = 0; i < 16; i++) {
+		stc_tag_buf[i] = psycho_read(tag_base + (i * 8UL));
+		stc_line_buf[i] = psycho_read(line_base + (i * 8UL));
+		psycho_write(tag_base + (i * 8UL), 0UL);
+		psycho_write(line_base + (i * 8UL), 0UL);
+	}
+
+	/* OK, state is logged, exit diagnostic mode. */
+	psycho_write(strbuf->strbuf_control, control);
+
+	for (i = 0; i < 16; i++) {
+		int j, saw_error, first, last;
+
+		saw_error = 0;
+		first = i * 8;
+		last = first + 8;
+		for (j = first; j < last; j++) {
+			unsigned long errval = stc_error_buf[j];
+			if (errval != 0) {
+				saw_error++;
+				printk("PSYCHO%d(PBM%c): STC_ERR(%d)[wr(%d)rd(%d)]\n",
+				       p->index,
+				       (is_pbm_a ? 'A' : 'B'),
+				       j,
+				       (errval & PSYCHO_STCERR_WRITE) ? 1 : 0,
+				       (errval & PSYCHO_STCERR_READ) ? 1 : 0);
+			}
+		}
+		if (saw_error != 0) {
+			unsigned long tagval = stc_tag_buf[i];
+			unsigned long lineval = stc_line_buf[i];
+			printk("PSYCHO%d(PBM%c): STC_TAG(%d)[PA(%016lx)VA(%08lx)V(%d)W(%d)]\n",
+			       p->index,
+			       (is_pbm_a ? 'A' : 'B'),
+			       i,
+			       ((tagval & PSYCHO_STCTAG_PPN) >> 19UL),
+			       (tagval & PSYCHO_STCTAG_VPN),
+			       ((tagval & PSYCHO_STCTAG_VALID) ? 1 : 0),
+			       ((tagval & PSYCHO_STCTAG_WRITE) ? 1 : 0));
+			printk("PSYCHO%d(PBM%c): STC_LINE(%d)[LIDX(%lx)SP(%lx)LADDR(%lx)EP(%lx)"
+			       "V(%d)FOFN(%d)]\n",
+			       p->index,
+			       (is_pbm_a ? 'A' : 'B'),
+			       i,
+			       ((lineval & PSYCHO_STCLINE_LINDX) >> 21UL),
+			       ((lineval & PSYCHO_STCLINE_SPTR) >> 15UL),
+			       ((lineval & PSYCHO_STCLINE_LADDR) >> 8UL),
+			       ((lineval & PSYCHO_STCLINE_EPTR) >> 2UL),
+			       ((lineval & PSYCHO_STCLINE_VALID) ? 1 : 0),
+			       ((lineval & PSYCHO_STCLINE_FOFN) ? 1 : 0));
+		}
+	}
+
+	spin_unlock(&stc_buf_lock);
+}
+
+static void __psycho_check_stc_error(struct pci_controller_info *p,
+				     unsigned long afsr,
+				     unsigned long afar,
+				     enum psycho_error_type type)
+{
+	struct pci_pbm_info *pbm;
+
+	pbm = &p->pbm_A;
+	if (pbm->stc.strbuf_enabled)
+		__psycho_check_one_stc(p, pbm, 1);
+
+	pbm = &p->pbm_B;
+	if (pbm->stc.strbuf_enabled)
+		__psycho_check_one_stc(p, pbm, 0);
+}
+
+/* When an Uncorrectable Error or a PCI Error happens, we
+ * interrogate the IOMMU state to see if it is the cause.
+ */
+#define PSYCHO_IOMMU_CONTROL	0x0200UL
+#define  PSYCHO_IOMMU_CTRL_RESV     0xfffffffff9000000UL /* Reserved                      */
+#define  PSYCHO_IOMMU_CTRL_XLTESTAT 0x0000000006000000UL /* Translation Error Status      */
+#define  PSYCHO_IOMMU_CTRL_XLTEERR  0x0000000001000000UL /* Translation Error encountered */
+#define  PSYCHO_IOMMU_CTRL_LCKEN    0x0000000000800000UL /* Enable translation locking    */
+#define  PSYCHO_IOMMU_CTRL_LCKPTR   0x0000000000780000UL /* Translation lock pointer      */
+#define  PSYCHO_IOMMU_CTRL_TSBSZ    0x0000000000070000UL /* TSB Size                      */
+#define  PSYCHO_IOMMU_TSBSZ_1K      0x0000000000000000UL /* TSB Table 1024 8-byte entries */
+#define  PSYCHO_IOMMU_TSBSZ_2K      0x0000000000010000UL /* TSB Table 2048 8-byte entries */
+#define  PSYCHO_IOMMU_TSBSZ_4K      0x0000000000020000UL /* TSB Table 4096 8-byte entries */
+#define  PSYCHO_IOMMU_TSBSZ_8K      0x0000000000030000UL /* TSB Table 8192 8-byte entries */
+#define  PSYCHO_IOMMU_TSBSZ_16K     0x0000000000040000UL /* TSB Table 16k 8-byte entries  */
+#define  PSYCHO_IOMMU_TSBSZ_32K     0x0000000000050000UL /* TSB Table 32k 8-byte entries  */
+#define  PSYCHO_IOMMU_TSBSZ_64K     0x0000000000060000UL /* TSB Table 64k 8-byte entries  */
+#define  PSYCHO_IOMMU_TSBSZ_128K    0x0000000000070000UL /* TSB Table 128k 8-byte entries */
+#define  PSYCHO_IOMMU_CTRL_RESV2    0x000000000000fff8UL /* Reserved                      */
+#define  PSYCHO_IOMMU_CTRL_TBWSZ    0x0000000000000004UL /* Assumed page size, 0=8k 1=64k */
+#define  PSYCHO_IOMMU_CTRL_DENAB    0x0000000000000002UL /* Diagnostic mode enable        */
+#define  PSYCHO_IOMMU_CTRL_ENAB     0x0000000000000001UL /* IOMMU Enable                  */
+#define PSYCHO_IOMMU_TSBBASE	0x0208UL
+#define PSYCHO_IOMMU_FLUSH	0x0210UL
+#define PSYCHO_IOMMU_TAG	0xa580UL
+#define  PSYCHO_IOMMU_TAG_ERRSTS (0x3UL << 23UL)
+#define  PSYCHO_IOMMU_TAG_ERR	 (0x1UL << 22UL)
+#define  PSYCHO_IOMMU_TAG_WRITE	 (0x1UL << 21UL)
+#define  PSYCHO_IOMMU_TAG_STREAM (0x1UL << 20UL)
+#define  PSYCHO_IOMMU_TAG_SIZE	 (0x1UL << 19UL)
+#define  PSYCHO_IOMMU_TAG_VPAGE	 0x7ffffUL
+#define PSYCHO_IOMMU_DATA	0xa600UL
+#define  PSYCHO_IOMMU_DATA_VALID (1UL << 30UL)
+#define  PSYCHO_IOMMU_DATA_CACHE (1UL << 28UL)
+#define  PSYCHO_IOMMU_DATA_PPAGE 0xfffffffUL
+static void psycho_check_iommu_error(struct pci_controller_info *p,
+				     unsigned long afsr,
+				     unsigned long afar,
+				     enum psycho_error_type type)
+{
+	struct pci_iommu *iommu = p->pbm_A.iommu;
+	unsigned long iommu_tag[16];
+	unsigned long iommu_data[16];
+	unsigned long flags;
+	u64 control;
+	int i;
+
+	spin_lock_irqsave(&iommu->lock, flags);
+	control = psycho_read(iommu->iommu_control);
+	if (control & PSYCHO_IOMMU_CTRL_XLTEERR) {
+		char *type_string;
+
+		/* Clear the error encountered bit. */
+		control &= ~PSYCHO_IOMMU_CTRL_XLTEERR;
+		psycho_write(iommu->iommu_control, control);
+
+		switch((control & PSYCHO_IOMMU_CTRL_XLTESTAT) >> 25UL) {
+		case 0:
+			type_string = "Protection Error";
+			break;
+		case 1:
+			type_string = "Invalid Error";
+			break;
+		case 2:
+			type_string = "TimeOut Error";
+			break;
+		case 3:
+		default:
+			type_string = "ECC Error";
+			break;
+		};
+		printk("PSYCHO%d: IOMMU Error, type[%s]\n",
+		       p->index, type_string);
+
+		/* Put the IOMMU into diagnostic mode and probe
+		 * it's TLB for entries with error status.
+		 *
+		 * It is very possible for another DVMA to occur
+		 * while we do this probe, and corrupt the system
+		 * further.  But we are so screwed at this point
+		 * that we are likely to crash hard anyways, so
+		 * get as much diagnostic information to the
+		 * console as we can.
+		 */
+		psycho_write(iommu->iommu_control,
+			     control | PSYCHO_IOMMU_CTRL_DENAB);
+		for (i = 0; i < 16; i++) {
+			unsigned long base = p->pbm_A.controller_regs;
+
+			iommu_tag[i] =
+				psycho_read(base + PSYCHO_IOMMU_TAG + (i * 8UL));
+			iommu_data[i] =
+				psycho_read(base + PSYCHO_IOMMU_DATA + (i * 8UL));
+
+			/* Now clear out the entry. */
+			psycho_write(base + PSYCHO_IOMMU_TAG + (i * 8UL), 0);
+			psycho_write(base + PSYCHO_IOMMU_DATA + (i * 8UL), 0);
+		}
+
+		/* Leave diagnostic mode. */
+		psycho_write(iommu->iommu_control, control);
+
+		for (i = 0; i < 16; i++) {
+			unsigned long tag, data;
+
+			tag = iommu_tag[i];
+			if (!(tag & PSYCHO_IOMMU_TAG_ERR))
+				continue;
+
+			data = iommu_data[i];
+			switch((tag & PSYCHO_IOMMU_TAG_ERRSTS) >> 23UL) {
+			case 0:
+				type_string = "Protection Error";
+				break;
+			case 1:
+				type_string = "Invalid Error";
+				break;
+			case 2:
+				type_string = "TimeOut Error";
+				break;
+			case 3:
+			default:
+				type_string = "ECC Error";
+				break;
+			};
+			printk("PSYCHO%d: IOMMU TAG(%d)[error(%s) wr(%d) str(%d) sz(%dK) vpg(%08lx)]\n",
+			       p->index, i, type_string,
+			       ((tag & PSYCHO_IOMMU_TAG_WRITE) ? 1 : 0),
+			       ((tag & PSYCHO_IOMMU_TAG_STREAM) ? 1 : 0),
+			       ((tag & PSYCHO_IOMMU_TAG_SIZE) ? 64 : 8),
+			       (tag & PSYCHO_IOMMU_TAG_VPAGE) << IOMMU_PAGE_SHIFT);
+			printk("PSYCHO%d: IOMMU DATA(%d)[valid(%d) cache(%d) ppg(%016lx)]\n",
+			       p->index, i,
+			       ((data & PSYCHO_IOMMU_DATA_VALID) ? 1 : 0),
+			       ((data & PSYCHO_IOMMU_DATA_CACHE) ? 1 : 0),
+			       (data & PSYCHO_IOMMU_DATA_PPAGE) << IOMMU_PAGE_SHIFT);
+		}
+	}
+	__psycho_check_stc_error(p, afsr, afar, type);
+	spin_unlock_irqrestore(&iommu->lock, flags);
+}
+
+/* Uncorrectable Errors.  Cause of the error and the address are
+ * recorded in the UE_AFSR and UE_AFAR of PSYCHO.  They are errors
+ * relating to UPA interface transactions.
+ */
+#define PSYCHO_UE_AFSR	0x0030UL
+#define  PSYCHO_UEAFSR_PPIO	0x8000000000000000UL /* Primary PIO is cause         */
+#define  PSYCHO_UEAFSR_PDRD	0x4000000000000000UL /* Primary DVMA read is cause   */
+#define  PSYCHO_UEAFSR_PDWR	0x2000000000000000UL /* Primary DVMA write is cause  */
+#define  PSYCHO_UEAFSR_SPIO	0x1000000000000000UL /* Secondary PIO is cause       */
+#define  PSYCHO_UEAFSR_SDRD	0x0800000000000000UL /* Secondary DVMA read is cause */
+#define  PSYCHO_UEAFSR_SDWR	0x0400000000000000UL /* Secondary DVMA write is cause*/
+#define  PSYCHO_UEAFSR_RESV1	0x03ff000000000000UL /* Reserved                     */
+#define  PSYCHO_UEAFSR_BMSK	0x0000ffff00000000UL /* Bytemask of failed transfer  */
+#define  PSYCHO_UEAFSR_DOFF	0x00000000e0000000UL /* Doubleword Offset            */
+#define  PSYCHO_UEAFSR_MID	0x000000001f000000UL /* UPA MID causing the fault    */
+#define  PSYCHO_UEAFSR_BLK	0x0000000000800000UL /* Trans was block operation    */
+#define  PSYCHO_UEAFSR_RESV2	0x00000000007fffffUL /* Reserved                     */
+#define PSYCHO_UE_AFAR	0x0038UL
+
+static irqreturn_t psycho_ue_intr(int irq, void *dev_id, struct pt_regs *regs)
+{
+	struct pci_controller_info *p = dev_id;
+	unsigned long afsr_reg = p->pbm_A.controller_regs + PSYCHO_UE_AFSR;
+	unsigned long afar_reg = p->pbm_A.controller_regs + PSYCHO_UE_AFAR;
+	unsigned long afsr, afar, error_bits;
+	int reported;
+
+	/* Latch uncorrectable error status. */
+	afar = psycho_read(afar_reg);
+	afsr = psycho_read(afsr_reg);
+
+	/* Clear the primary/secondary error status bits. */
+	error_bits = afsr &
+		(PSYCHO_UEAFSR_PPIO | PSYCHO_UEAFSR_PDRD | PSYCHO_UEAFSR_PDWR |
+		 PSYCHO_UEAFSR_SPIO | PSYCHO_UEAFSR_SDRD | PSYCHO_UEAFSR_SDWR);
+	if (!error_bits)
+		return IRQ_NONE;
+	psycho_write(afsr_reg, error_bits);
+
+	/* Log the error. */
+	printk("PSYCHO%d: Uncorrectable Error, primary error type[%s]\n",
+	       p->index,
+	       (((error_bits & PSYCHO_UEAFSR_PPIO) ?
+		 "PIO" :
+		 ((error_bits & PSYCHO_UEAFSR_PDRD) ?
+		  "DMA Read" :
+		  ((error_bits & PSYCHO_UEAFSR_PDWR) ?
+		   "DMA Write" : "???")))));
+	printk("PSYCHO%d: bytemask[%04lx] dword_offset[%lx] UPA_MID[%02lx] was_block(%d)\n",
+	       p->index,
+	       (afsr & PSYCHO_UEAFSR_BMSK) >> 32UL,
+	       (afsr & PSYCHO_UEAFSR_DOFF) >> 29UL,
+	       (afsr & PSYCHO_UEAFSR_MID) >> 24UL,
+	       ((afsr & PSYCHO_UEAFSR_BLK) ? 1 : 0));
+	printk("PSYCHO%d: UE AFAR [%016lx]\n", p->index, afar);
+	printk("PSYCHO%d: UE Secondary errors [", p->index);
+	reported = 0;
+	if (afsr & PSYCHO_UEAFSR_SPIO) {
+		reported++;
+		printk("(PIO)");
+	}
+	if (afsr & PSYCHO_UEAFSR_SDRD) {
+		reported++;
+		printk("(DMA Read)");
+	}
+	if (afsr & PSYCHO_UEAFSR_SDWR) {
+		reported++;
+		printk("(DMA Write)");
+	}
+	if (!reported)
+		printk("(none)");
+	printk("]\n");
+
+	/* Interrogate IOMMU for error status. */
+	psycho_check_iommu_error(p, afsr, afar, UE_ERR);
+
+	return IRQ_HANDLED;
+}
+
+/* Correctable Errors. */
+#define PSYCHO_CE_AFSR	0x0040UL
+#define  PSYCHO_CEAFSR_PPIO	0x8000000000000000UL /* Primary PIO is cause         */
+#define  PSYCHO_CEAFSR_PDRD	0x4000000000000000UL /* Primary DVMA read is cause   */
+#define  PSYCHO_CEAFSR_PDWR	0x2000000000000000UL /* Primary DVMA write is cause  */
+#define  PSYCHO_CEAFSR_SPIO	0x1000000000000000UL /* Secondary PIO is cause       */
+#define  PSYCHO_CEAFSR_SDRD	0x0800000000000000UL /* Secondary DVMA read is cause */
+#define  PSYCHO_CEAFSR_SDWR	0x0400000000000000UL /* Secondary DVMA write is cause*/
+#define  PSYCHO_CEAFSR_RESV1	0x0300000000000000UL /* Reserved                     */
+#define  PSYCHO_CEAFSR_ESYND	0x00ff000000000000UL /* Syndrome Bits                */
+#define  PSYCHO_CEAFSR_BMSK	0x0000ffff00000000UL /* Bytemask of failed transfer  */
+#define  PSYCHO_CEAFSR_DOFF	0x00000000e0000000UL /* Double Offset                */
+#define  PSYCHO_CEAFSR_MID	0x000000001f000000UL /* UPA MID causing the fault    */
+#define  PSYCHO_CEAFSR_BLK	0x0000000000800000UL /* Trans was block operation    */
+#define  PSYCHO_CEAFSR_RESV2	0x00000000007fffffUL /* Reserved                     */
+#define PSYCHO_CE_AFAR	0x0040UL
+
+static irqreturn_t psycho_ce_intr(int irq, void *dev_id, struct pt_regs *regs)
+{
+	struct pci_controller_info *p = dev_id;
+	unsigned long afsr_reg = p->pbm_A.controller_regs + PSYCHO_CE_AFSR;
+	unsigned long afar_reg = p->pbm_A.controller_regs + PSYCHO_CE_AFAR;
+	unsigned long afsr, afar, error_bits;
+	int reported;
+
+	/* Latch error status. */
+	afar = psycho_read(afar_reg);
+	afsr = psycho_read(afsr_reg);
+
+	/* Clear primary/secondary error status bits. */
+	error_bits = afsr &
+		(PSYCHO_CEAFSR_PPIO | PSYCHO_CEAFSR_PDRD | PSYCHO_CEAFSR_PDWR |
+		 PSYCHO_CEAFSR_SPIO | PSYCHO_CEAFSR_SDRD | PSYCHO_CEAFSR_SDWR);
+	if (!error_bits)
+		return IRQ_NONE;
+	psycho_write(afsr_reg, error_bits);
+
+	/* Log the error. */
+	printk("PSYCHO%d: Correctable Error, primary error type[%s]\n",
+	       p->index,
+	       (((error_bits & PSYCHO_CEAFSR_PPIO) ?
+		 "PIO" :
+		 ((error_bits & PSYCHO_CEAFSR_PDRD) ?
+		  "DMA Read" :
+		  ((error_bits & PSYCHO_CEAFSR_PDWR) ?
+		   "DMA Write" : "???")))));
+
+	/* XXX Use syndrome and afar to print out module string just like
+	 * XXX UDB CE trap handler does... -DaveM
+	 */
+	printk("PSYCHO%d: syndrome[%02lx] bytemask[%04lx] dword_offset[%lx] "
+	       "UPA_MID[%02lx] was_block(%d)\n",
+	       p->index,
+	       (afsr & PSYCHO_CEAFSR_ESYND) >> 48UL,
+	       (afsr & PSYCHO_CEAFSR_BMSK) >> 32UL,
+	       (afsr & PSYCHO_CEAFSR_DOFF) >> 29UL,
+	       (afsr & PSYCHO_CEAFSR_MID) >> 24UL,
+	       ((afsr & PSYCHO_CEAFSR_BLK) ? 1 : 0));
+	printk("PSYCHO%d: CE AFAR [%016lx]\n", p->index, afar);
+	printk("PSYCHO%d: CE Secondary errors [", p->index);
+	reported = 0;
+	if (afsr & PSYCHO_CEAFSR_SPIO) {
+		reported++;
+		printk("(PIO)");
+	}
+	if (afsr & PSYCHO_CEAFSR_SDRD) {
+		reported++;
+		printk("(DMA Read)");
+	}
+	if (afsr & PSYCHO_CEAFSR_SDWR) {
+		reported++;
+		printk("(DMA Write)");
+	}
+	if (!reported)
+		printk("(none)");
+	printk("]\n");
+
+	return IRQ_HANDLED;
+}
+
+/* PCI Errors.  They are signalled by the PCI bus module since they
+ * are associated with a specific bus segment.
+ */
+#define PSYCHO_PCI_AFSR_A	0x2010UL
+#define PSYCHO_PCI_AFSR_B	0x4010UL
+#define  PSYCHO_PCIAFSR_PMA	0x8000000000000000UL /* Primary Master Abort Error   */
+#define  PSYCHO_PCIAFSR_PTA	0x4000000000000000UL /* Primary Target Abort Error   */
+#define  PSYCHO_PCIAFSR_PRTRY	0x2000000000000000UL /* Primary Excessive Retries    */
+#define  PSYCHO_PCIAFSR_PPERR	0x1000000000000000UL /* Primary Parity Error         */
+#define  PSYCHO_PCIAFSR_SMA	0x0800000000000000UL /* Secondary Master Abort Error */
+#define  PSYCHO_PCIAFSR_STA	0x0400000000000000UL /* Secondary Target Abort Error */
+#define  PSYCHO_PCIAFSR_SRTRY	0x0200000000000000UL /* Secondary Excessive Retries  */
+#define  PSYCHO_PCIAFSR_SPERR	0x0100000000000000UL /* Secondary Parity Error       */
+#define  PSYCHO_PCIAFSR_RESV1	0x00ff000000000000UL /* Reserved                     */
+#define  PSYCHO_PCIAFSR_BMSK	0x0000ffff00000000UL /* Bytemask of failed transfer  */
+#define  PSYCHO_PCIAFSR_BLK	0x0000000080000000UL /* Trans was block operation    */
+#define  PSYCHO_PCIAFSR_RESV2	0x0000000040000000UL /* Reserved                     */
+#define  PSYCHO_PCIAFSR_MID	0x000000003e000000UL /* MID causing the error        */
+#define  PSYCHO_PCIAFSR_RESV3	0x0000000001ffffffUL /* Reserved                     */
+#define PSYCHO_PCI_AFAR_A	0x2018UL
+#define PSYCHO_PCI_AFAR_B	0x4018UL
+
+static irqreturn_t psycho_pcierr_intr_other(struct pci_pbm_info *pbm, int is_pbm_a)
+{
+	unsigned long csr_reg, csr, csr_error_bits;
+	irqreturn_t ret = IRQ_NONE;
+	u16 stat;
+
+	if (is_pbm_a) {
+		csr_reg = pbm->controller_regs + PSYCHO_PCIA_CTRL;
+	} else {
+		csr_reg = pbm->controller_regs + PSYCHO_PCIB_CTRL;
+	}
+	csr = psycho_read(csr_reg);
+	csr_error_bits =
+		csr & (PSYCHO_PCICTRL_SBH_ERR | PSYCHO_PCICTRL_SERR);
+	if (csr_error_bits) {
+		/* Clear the errors.  */
+		psycho_write(csr_reg, csr);
+
+		/* Log 'em.  */
+		if (csr_error_bits & PSYCHO_PCICTRL_SBH_ERR)
+			printk("%s: PCI streaming byte hole error asserted.\n",
+			       pbm->name);
+		if (csr_error_bits & PSYCHO_PCICTRL_SERR)
+			printk("%s: PCI SERR signal asserted.\n", pbm->name);
+		ret = IRQ_HANDLED;
+	}
+	pci_read_config_word(pbm->pci_bus->self, PCI_STATUS, &stat);
+	if (stat & (PCI_STATUS_PARITY |
+		    PCI_STATUS_SIG_TARGET_ABORT |
+		    PCI_STATUS_REC_TARGET_ABORT |
+		    PCI_STATUS_REC_MASTER_ABORT |
+		    PCI_STATUS_SIG_SYSTEM_ERROR)) {
+		printk("%s: PCI bus error, PCI_STATUS[%04x]\n",
+		       pbm->name, stat);
+		pci_write_config_word(pbm->pci_bus->self, PCI_STATUS, 0xffff);
+		ret = IRQ_HANDLED;
+	}
+	return ret;
+}
+
+static irqreturn_t psycho_pcierr_intr(int irq, void *dev_id, struct pt_regs *regs)
+{
+	struct pci_pbm_info *pbm = dev_id;
+	struct pci_controller_info *p = pbm->parent;
+	unsigned long afsr_reg, afar_reg;
+	unsigned long afsr, afar, error_bits;
+	int is_pbm_a, reported;
+
+	is_pbm_a = (pbm == &pbm->parent->pbm_A);
+	if (is_pbm_a) {
+		afsr_reg = p->pbm_A.controller_regs + PSYCHO_PCI_AFSR_A;
+		afar_reg = p->pbm_A.controller_regs + PSYCHO_PCI_AFAR_A;
+	} else {
+		afsr_reg = p->pbm_A.controller_regs + PSYCHO_PCI_AFSR_B;
+		afar_reg = p->pbm_A.controller_regs + PSYCHO_PCI_AFAR_B;
+	}
+
+	/* Latch error status. */
+	afar = psycho_read(afar_reg);
+	afsr = psycho_read(afsr_reg);
+
+	/* Clear primary/secondary error status bits. */
+	error_bits = afsr &
+		(PSYCHO_PCIAFSR_PMA | PSYCHO_PCIAFSR_PTA |
+		 PSYCHO_PCIAFSR_PRTRY | PSYCHO_PCIAFSR_PPERR |
+		 PSYCHO_PCIAFSR_SMA | PSYCHO_PCIAFSR_STA |
+		 PSYCHO_PCIAFSR_SRTRY | PSYCHO_PCIAFSR_SPERR);
+	if (!error_bits)
+		return psycho_pcierr_intr_other(pbm, is_pbm_a);
+	psycho_write(afsr_reg, error_bits);
+
+	/* Log the error. */
+	printk("PSYCHO%d(PBM%c): PCI Error, primary error type[%s]\n",
+	       p->index, (is_pbm_a ? 'A' : 'B'),
+	       (((error_bits & PSYCHO_PCIAFSR_PMA) ?
+		 "Master Abort" :
+		 ((error_bits & PSYCHO_PCIAFSR_PTA) ?
+		  "Target Abort" :
+		  ((error_bits & PSYCHO_PCIAFSR_PRTRY) ?
+		   "Excessive Retries" :
+		   ((error_bits & PSYCHO_PCIAFSR_PPERR) ?
+		    "Parity Error" : "???"))))));
+	printk("PSYCHO%d(PBM%c): bytemask[%04lx] UPA_MID[%02lx] was_block(%d)\n",
+	       p->index, (is_pbm_a ? 'A' : 'B'),
+	       (afsr & PSYCHO_PCIAFSR_BMSK) >> 32UL,
+	       (afsr & PSYCHO_PCIAFSR_MID) >> 25UL,
+	       (afsr & PSYCHO_PCIAFSR_BLK) ? 1 : 0);
+	printk("PSYCHO%d(PBM%c): PCI AFAR [%016lx]\n",
+	       p->index, (is_pbm_a ? 'A' : 'B'), afar);
+	printk("PSYCHO%d(PBM%c): PCI Secondary errors [",
+	       p->index, (is_pbm_a ? 'A' : 'B'));
+	reported = 0;
+	if (afsr & PSYCHO_PCIAFSR_SMA) {
+		reported++;
+		printk("(Master Abort)");
+	}
+	if (afsr & PSYCHO_PCIAFSR_STA) {
+		reported++;
+		printk("(Target Abort)");
+	}
+	if (afsr & PSYCHO_PCIAFSR_SRTRY) {
+		reported++;
+		printk("(Excessive Retries)");
+	}
+	if (afsr & PSYCHO_PCIAFSR_SPERR) {
+		reported++;
+		printk("(Parity Error)");
+	}
+	if (!reported)
+		printk("(none)");
+	printk("]\n");
+
+	/* For the error types shown, scan PBM's PCI bus for devices
+	 * which have logged that error type.
+	 */
+
+	/* If we see a Target Abort, this could be the result of an
+	 * IOMMU translation error of some sort.  It is extremely
+	 * useful to log this information as usually it indicates
+	 * a bug in the IOMMU support code or a PCI device driver.
+	 */
+	if (error_bits & (PSYCHO_PCIAFSR_PTA | PSYCHO_PCIAFSR_STA)) {
+		psycho_check_iommu_error(p, afsr, afar, PCI_ERR);
+		pci_scan_for_target_abort(p, pbm, pbm->pci_bus);
+	}
+	if (error_bits & (PSYCHO_PCIAFSR_PMA | PSYCHO_PCIAFSR_SMA))
+		pci_scan_for_master_abort(p, pbm, pbm->pci_bus);
+
+	/* For excessive retries, PSYCHO/PBM will abort the device
+	 * and there is no way to specifically check for excessive
+	 * retries in the config space status registers.  So what
+	 * we hope is that we'll catch it via the master/target
+	 * abort events.
+	 */
+
+	if (error_bits & (PSYCHO_PCIAFSR_PPERR | PSYCHO_PCIAFSR_SPERR))
+		pci_scan_for_parity_error(p, pbm, pbm->pci_bus);
+
+	return IRQ_HANDLED;
+}
+
+/* XXX What about PowerFail/PowerManagement??? -DaveM */
+#define PSYCHO_ECC_CTRL		0x0020
+#define  PSYCHO_ECCCTRL_EE	 0x8000000000000000UL /* Enable ECC Checking */
+#define  PSYCHO_ECCCTRL_UE	 0x4000000000000000UL /* Enable UE Interrupts */
+#define  PSYCHO_ECCCTRL_CE	 0x2000000000000000UL /* Enable CE INterrupts */
+#define PSYCHO_UE_INO		0x2e
+#define PSYCHO_CE_INO		0x2f
+#define PSYCHO_PCIERR_A_INO	0x30
+#define PSYCHO_PCIERR_B_INO	0x31
+static void __init psycho_register_error_handlers(struct pci_controller_info *p)
+{
+	struct pci_pbm_info *pbm = &p->pbm_A; /* arbitrary */
+	unsigned long base = p->pbm_A.controller_regs;
+	unsigned int irq, portid = pbm->portid;
+	u64 tmp;
+
+	/* Build IRQs and register handlers. */
+	irq = psycho_irq_build(pbm, NULL, (portid << 6) | PSYCHO_UE_INO);
+	if (request_irq(irq, psycho_ue_intr,
+			SA_SHIRQ, "PSYCHO UE", p) < 0) {
+		prom_printf("PSYCHO%d: Cannot register UE interrupt.\n",
+			    p->index);
+		prom_halt();
+	}
+
+	irq = psycho_irq_build(pbm, NULL, (portid << 6) | PSYCHO_CE_INO);
+	if (request_irq(irq, psycho_ce_intr,
+			SA_SHIRQ, "PSYCHO CE", p) < 0) {
+		prom_printf("PSYCHO%d: Cannot register CE interrupt.\n",
+			    p->index);
+		prom_halt();
+	}
+
+	pbm = &p->pbm_A;
+	irq = psycho_irq_build(pbm, NULL, (portid << 6) | PSYCHO_PCIERR_A_INO);
+	if (request_irq(irq, psycho_pcierr_intr,
+			SA_SHIRQ, "PSYCHO PCIERR", &p->pbm_A) < 0) {
+		prom_printf("PSYCHO%d(PBMA): Cannot register PciERR interrupt.\n",
+			    p->index);
+		prom_halt();
+	}
+
+	pbm = &p->pbm_B;
+	irq = psycho_irq_build(pbm, NULL, (portid << 6) | PSYCHO_PCIERR_B_INO);
+	if (request_irq(irq, psycho_pcierr_intr,
+			SA_SHIRQ, "PSYCHO PCIERR", &p->pbm_B) < 0) {
+		prom_printf("PSYCHO%d(PBMB): Cannot register PciERR interrupt.\n",
+			    p->index);
+		prom_halt();
+	}
+
+	/* Enable UE and CE interrupts for controller. */
+	psycho_write(base + PSYCHO_ECC_CTRL,
+		     (PSYCHO_ECCCTRL_EE |
+		      PSYCHO_ECCCTRL_UE |
+		      PSYCHO_ECCCTRL_CE));
+
+	/* Enable PCI Error interrupts and clear error
+	 * bits for each PBM.
+	 */
+	tmp = psycho_read(base + PSYCHO_PCIA_CTRL);
+	tmp |= (PSYCHO_PCICTRL_SERR |
+		PSYCHO_PCICTRL_SBH_ERR |
+		PSYCHO_PCICTRL_EEN);
+	tmp &= ~(PSYCHO_PCICTRL_SBH_INT);
+	psycho_write(base + PSYCHO_PCIA_CTRL, tmp);
+		     
+	tmp = psycho_read(base + PSYCHO_PCIB_CTRL);
+	tmp |= (PSYCHO_PCICTRL_SERR |
+		PSYCHO_PCICTRL_SBH_ERR |
+		PSYCHO_PCICTRL_EEN);
+	tmp &= ~(PSYCHO_PCICTRL_SBH_INT);
+	psycho_write(base + PSYCHO_PCIB_CTRL, tmp);
+}
+
+/* PSYCHO boot time probing and initialization. */
+static void __init psycho_resource_adjust(struct pci_dev *pdev,
+					  struct resource *res,
+					  struct resource *root)
+{
+	res->start += root->start;
+	res->end += root->start;
+}
+
+static void __init psycho_base_address_update(struct pci_dev *pdev, int resource)
+{
+	struct pcidev_cookie *pcp = pdev->sysdata;
+	struct pci_pbm_info *pbm = pcp->pbm;
+	struct resource *res, *root;
+	u32 reg;
+	int where, size, is_64bit;
+
+	res = &pdev->resource[resource];
+	if (resource < 6) {
+		where = PCI_BASE_ADDRESS_0 + (resource * 4);
+	} else if (resource == PCI_ROM_RESOURCE) {
+		where = pdev->rom_base_reg;
+	} else {
+		/* Somebody might have asked allocation of a non-standard resource */
+		return;
+	}
+
+	is_64bit = 0;
+	if (res->flags & IORESOURCE_IO)
+		root = &pbm->io_space;
+	else {
+		root = &pbm->mem_space;
+		if ((res->flags & PCI_BASE_ADDRESS_MEM_TYPE_MASK)
+		    == PCI_BASE_ADDRESS_MEM_TYPE_64)
+			is_64bit = 1;
+	}
+
+	size = res->end - res->start;
+	pci_read_config_dword(pdev, where, &reg);
+	reg = ((reg & size) |
+	       (((u32)(res->start - root->start)) & ~size));
+	if (resource == PCI_ROM_RESOURCE) {
+		reg |= PCI_ROM_ADDRESS_ENABLE;
+		res->flags |= IORESOURCE_ROM_ENABLE;
+	}
+	pci_write_config_dword(pdev, where, reg);
+
+	/* This knows that the upper 32-bits of the address
+	 * must be zero.  Our PCI common layer enforces this.
+	 */
+	if (is_64bit)
+		pci_write_config_dword(pdev, where + 4, 0);
+}
+
+static void __init pbm_config_busmastering(struct pci_pbm_info *pbm)
+{
+	u8 *addr;
+
+	/* Set cache-line size to 64 bytes, this is actually
+	 * a nop but I do it for completeness.
+	 */
+	addr = psycho_pci_config_mkaddr(pbm, pbm->pci_first_busno,
+					0, PCI_CACHE_LINE_SIZE);
+	pci_config_write8(addr, 64 / sizeof(u32));
+
+	/* Set PBM latency timer to 64 PCI clocks. */
+	addr = psycho_pci_config_mkaddr(pbm, pbm->pci_first_busno,
+					0, PCI_LATENCY_TIMER);
+	pci_config_write8(addr, 64);
+}
+
+static void __init pbm_scan_bus(struct pci_controller_info *p,
+				struct pci_pbm_info *pbm)
+{
+	struct pcidev_cookie *cookie = kmalloc(sizeof(*cookie), GFP_KERNEL);
+
+	if (!cookie) {
+		prom_printf("PSYCHO: Critical allocation failure.\n");
+		prom_halt();
+	}
+
+	/* All we care about is the PBM. */
+	memset(cookie, 0, sizeof(*cookie));
+	cookie->pbm = pbm;
+
+	pbm->pci_bus = pci_scan_bus(pbm->pci_first_busno,
+				    p->pci_ops,
+				    pbm);
+	pci_fixup_host_bridge_self(pbm->pci_bus);
+	pbm->pci_bus->self->sysdata = cookie;
+
+	pci_fill_in_pbm_cookies(pbm->pci_bus, pbm, pbm->prom_node);
+	pci_record_assignments(pbm, pbm->pci_bus);
+	pci_assign_unassigned(pbm, pbm->pci_bus);
+	pci_fixup_irq(pbm, pbm->pci_bus);
+	pci_determine_66mhz_disposition(pbm, pbm->pci_bus);
+	pci_setup_busmastering(pbm, pbm->pci_bus);
+}
+
+static void __init psycho_scan_bus(struct pci_controller_info *p)
+{
+	pbm_config_busmastering(&p->pbm_B);
+	p->pbm_B.is_66mhz_capable = 0;
+	pbm_config_busmastering(&p->pbm_A);
+	p->pbm_A.is_66mhz_capable = 1;
+	pbm_scan_bus(p, &p->pbm_B);
+	pbm_scan_bus(p, &p->pbm_A);
+
+	/* After the PCI bus scan is complete, we can register
+	 * the error interrupt handlers.
+	 */
+	psycho_register_error_handlers(p);
+}
+
+static void __init psycho_iommu_init(struct pci_controller_info *p)
+{
+	struct pci_iommu *iommu = p->pbm_A.iommu;
+	unsigned long tsbbase, i;
+	u64 control;
+
+	/* Setup initial software IOMMU state. */
+	spin_lock_init(&iommu->lock);
+	iommu->iommu_cur_ctx = 0;
+
+	/* Register addresses. */
+	iommu->iommu_control  = p->pbm_A.controller_regs + PSYCHO_IOMMU_CONTROL;
+	iommu->iommu_tsbbase  = p->pbm_A.controller_regs + PSYCHO_IOMMU_TSBBASE;
+	iommu->iommu_flush    = p->pbm_A.controller_regs + PSYCHO_IOMMU_FLUSH;
+	/* PSYCHO's IOMMU lacks ctx flushing. */
+	iommu->iommu_ctxflush = 0;
+
+	/* We use the main control register of PSYCHO as the write
+	 * completion register.
+	 */
+	iommu->write_complete_reg = p->pbm_A.controller_regs + PSYCHO_CONTROL;
+
+	/*
+	 * Invalidate TLB Entries.
+	 */
+	control = psycho_read(p->pbm_A.controller_regs + PSYCHO_IOMMU_CONTROL);
+	control |= PSYCHO_IOMMU_CTRL_DENAB;
+	psycho_write(p->pbm_A.controller_regs + PSYCHO_IOMMU_CONTROL, control);
+	for(i = 0; i < 16; i++) {
+		psycho_write(p->pbm_A.controller_regs + PSYCHO_IOMMU_TAG + (i * 8UL), 0);
+		psycho_write(p->pbm_A.controller_regs + PSYCHO_IOMMU_DATA + (i * 8UL), 0);
+	}
+
+	/* Leave diag mode enabled for full-flushing done
+	 * in pci_iommu.c
+	 */
+
+	iommu->dummy_page = __get_free_pages(GFP_KERNEL, 0);
+	if (!iommu->dummy_page) {
+		prom_printf("PSYCHO_IOMMU: Error, gfp(dummy_page) failed.\n");
+		prom_halt();
+	}
+	memset((void *)iommu->dummy_page, 0, PAGE_SIZE);
+	iommu->dummy_page_pa = (unsigned long) __pa(iommu->dummy_page);
+
+	/* Using assumed page size 8K with 128K entries we need 1MB iommu page
+	 * table (128K ioptes * 8 bytes per iopte).  This is
+	 * page order 7 on UltraSparc.
+	 */
+	tsbbase = __get_free_pages(GFP_KERNEL, get_order(IO_TSB_SIZE));
+	if (!tsbbase) {
+		prom_printf("PSYCHO_IOMMU: Error, gfp(tsb) failed.\n");
+		prom_halt();
+	}
+	iommu->page_table = (iopte_t *)tsbbase;
+	iommu->page_table_sz_bits = 17;
+	iommu->page_table_map_base = 0xc0000000;
+	iommu->dma_addr_mask = 0xffffffff;
+	pci_iommu_table_init(iommu, IO_TSB_SIZE);
+
+	/* We start with no consistent mappings. */
+	iommu->lowest_consistent_map =
+		1 << (iommu->page_table_sz_bits - PBM_LOGCLUSTERS);
+
+	for (i = 0; i < PBM_NCLUSTERS; i++) {
+		iommu->alloc_info[i].flush = 0;
+		iommu->alloc_info[i].next = 0;
+	}
+
+	psycho_write(p->pbm_A.controller_regs + PSYCHO_IOMMU_TSBBASE, __pa(tsbbase));
+
+	control = psycho_read(p->pbm_A.controller_regs + PSYCHO_IOMMU_CONTROL);
+	control &= ~(PSYCHO_IOMMU_CTRL_TSBSZ | PSYCHO_IOMMU_CTRL_TBWSZ);
+	control |= (PSYCHO_IOMMU_TSBSZ_128K | PSYCHO_IOMMU_CTRL_ENAB);
+	psycho_write(p->pbm_A.controller_regs + PSYCHO_IOMMU_CONTROL, control);
+
+	/* If necessary, hook us up for starfire IRQ translations. */
+	if(this_is_starfire)
+		p->starfire_cookie = starfire_hookup(p->pbm_A.portid);
+	else
+		p->starfire_cookie = NULL;
+}
+
+#define PSYCHO_IRQ_RETRY	0x1a00UL
+#define PSYCHO_PCIA_DIAG	0x2020UL
+#define PSYCHO_PCIB_DIAG	0x4020UL
+#define  PSYCHO_PCIDIAG_RESV	 0xffffffffffffff80UL /* Reserved                     */
+#define  PSYCHO_PCIDIAG_DRETRY	 0x0000000000000040UL /* Disable retry limit          */
+#define  PSYCHO_PCIDIAG_DISYNC	 0x0000000000000020UL /* Disable DMA wr / irq sync    */
+#define  PSYCHO_PCIDIAG_DDWSYNC	 0x0000000000000010UL /* Disable DMA wr / PIO rd sync */
+#define  PSYCHO_PCIDIAG_IDDPAR	 0x0000000000000008UL /* Invert DMA data parity       */
+#define  PSYCHO_PCIDIAG_IPDPAR	 0x0000000000000004UL /* Invert PIO data parity       */
+#define  PSYCHO_PCIDIAG_IPAPAR	 0x0000000000000002UL /* Invert PIO address parity    */
+#define  PSYCHO_PCIDIAG_LPBACK	 0x0000000000000001UL /* Enable loopback mode         */
+
+static void psycho_controller_hwinit(struct pci_controller_info *p)
+{
+	u64 tmp;
+
+	/* PROM sets the IRQ retry value too low, increase it. */
+	psycho_write(p->pbm_A.controller_regs + PSYCHO_IRQ_RETRY, 0xff);
+
+	/* Enable arbiter for all PCI slots. */
+	tmp = psycho_read(p->pbm_A.controller_regs + PSYCHO_PCIA_CTRL);
+	tmp |= PSYCHO_PCICTRL_AEN;
+	psycho_write(p->pbm_A.controller_regs + PSYCHO_PCIA_CTRL, tmp);
+
+	tmp = psycho_read(p->pbm_A.controller_regs + PSYCHO_PCIB_CTRL);
+	tmp |= PSYCHO_PCICTRL_AEN;
+	psycho_write(p->pbm_A.controller_regs + PSYCHO_PCIB_CTRL, tmp);
+
+	/* Disable DMA write / PIO read synchronization on
+	 * both PCI bus segments.
+	 * [ U2P Erratum 1243770, STP2223BGA data sheet ]
+	 */
+	tmp = psycho_read(p->pbm_A.controller_regs + PSYCHO_PCIA_DIAG);
+	tmp |= PSYCHO_PCIDIAG_DDWSYNC;
+	psycho_write(p->pbm_A.controller_regs + PSYCHO_PCIA_DIAG, tmp);
+
+	tmp = psycho_read(p->pbm_A.controller_regs + PSYCHO_PCIB_DIAG);
+	tmp |= PSYCHO_PCIDIAG_DDWSYNC;
+	psycho_write(p->pbm_A.controller_regs + PSYCHO_PCIB_DIAG, tmp);
+}
+
+static void __init pbm_register_toplevel_resources(struct pci_controller_info *p,
+						   struct pci_pbm_info *pbm)
+{
+	char *name = pbm->name;
+
+	sprintf(name, "PSYCHO%d PBM%c",
+		p->index,
+		(pbm == &p->pbm_A ? 'A' : 'B'));
+	pbm->io_space.name = pbm->mem_space.name = name;
+
+	request_resource(&ioport_resource, &pbm->io_space);
+	request_resource(&iomem_resource, &pbm->mem_space);
+	pci_register_legacy_regions(&pbm->io_space,
+				    &pbm->mem_space);
+}
+
+static void psycho_pbm_strbuf_init(struct pci_controller_info *p,
+				   struct pci_pbm_info *pbm,
+				   int is_pbm_a)
+{
+	unsigned long base = pbm->controller_regs;
+	u64 control;
+
+	if (is_pbm_a) {
+		pbm->stc.strbuf_control  = base + PSYCHO_STRBUF_CONTROL_A;
+		pbm->stc.strbuf_pflush   = base + PSYCHO_STRBUF_FLUSH_A;
+		pbm->stc.strbuf_fsync    = base + PSYCHO_STRBUF_FSYNC_A;
+	} else {
+		pbm->stc.strbuf_control  = base + PSYCHO_STRBUF_CONTROL_B;
+		pbm->stc.strbuf_pflush   = base + PSYCHO_STRBUF_FLUSH_B;
+		pbm->stc.strbuf_fsync    = base + PSYCHO_STRBUF_FSYNC_B;
+	}
+	/* PSYCHO's streaming buffer lacks ctx flushing. */
+	pbm->stc.strbuf_ctxflush      = 0;
+	pbm->stc.strbuf_ctxmatch_base = 0;
+
+	pbm->stc.strbuf_flushflag = (volatile unsigned long *)
+		((((unsigned long)&pbm->stc.__flushflag_buf[0])
+		  + 63UL)
+		 & ~63UL);
+	pbm->stc.strbuf_flushflag_pa = (unsigned long)
+		__pa(pbm->stc.strbuf_flushflag);
+
+	/* Enable the streaming buffer.  We have to be careful
+	 * just in case OBP left it with LRU locking enabled.
+	 *
+	 * It is possible to control if PBM will be rerun on
+	 * line misses.  Currently I just retain whatever setting
+	 * OBP left us with.  All checks so far show it having
+	 * a value of zero.
+	 */
+#undef PSYCHO_STRBUF_RERUN_ENABLE
+#undef PSYCHO_STRBUF_RERUN_DISABLE
+	control = psycho_read(pbm->stc.strbuf_control);
+	control |= PSYCHO_STRBUF_CTRL_ENAB;
+	control &= ~(PSYCHO_STRBUF_CTRL_LENAB | PSYCHO_STRBUF_CTRL_LPTR);
+#ifdef PSYCHO_STRBUF_RERUN_ENABLE
+	control &= ~(PSYCHO_STRBUF_CTRL_RRDIS);
+#else
+#ifdef PSYCHO_STRBUF_RERUN_DISABLE
+	control |= PSYCHO_STRBUF_CTRL_RRDIS;
+#endif
+#endif
+	psycho_write(pbm->stc.strbuf_control, control);
+
+	pbm->stc.strbuf_enabled = 1;
+}
+
+#define PSYCHO_IOSPACE_A	0x002000000UL
+#define PSYCHO_IOSPACE_B	0x002010000UL
+#define PSYCHO_IOSPACE_SIZE	0x00000ffffUL
+#define PSYCHO_MEMSPACE_A	0x100000000UL
+#define PSYCHO_MEMSPACE_B	0x180000000UL
+#define PSYCHO_MEMSPACE_SIZE	0x07fffffffUL
+
+static void psycho_pbm_init(struct pci_controller_info *p,
+			    int prom_node, int is_pbm_a)
+{
+	unsigned int busrange[2];
+	struct pci_pbm_info *pbm;
+	int err;
+
+	if (is_pbm_a) {
+		pbm = &p->pbm_A;
+		pbm->pci_first_slot = 1;
+		pbm->io_space.start = pbm->controller_regs + PSYCHO_IOSPACE_A;
+		pbm->mem_space.start = pbm->controller_regs + PSYCHO_MEMSPACE_A;
+	} else {
+		pbm = &p->pbm_B;
+		pbm->pci_first_slot = 2;
+		pbm->io_space.start = pbm->controller_regs + PSYCHO_IOSPACE_B;
+		pbm->mem_space.start = pbm->controller_regs + PSYCHO_MEMSPACE_B;
+	}
+
+	pbm->chip_type = PBM_CHIP_TYPE_PSYCHO;
+	pbm->chip_version =
+		prom_getintdefault(prom_node, "version#", 0);
+	pbm->chip_revision =
+		prom_getintdefault(prom_node, "module-revision#", 0);
+
+	pbm->io_space.end = pbm->io_space.start + PSYCHO_IOSPACE_SIZE;
+	pbm->io_space.flags = IORESOURCE_IO;
+	pbm->mem_space.end = pbm->mem_space.start + PSYCHO_MEMSPACE_SIZE;
+	pbm->mem_space.flags = IORESOURCE_MEM;
+	pbm_register_toplevel_resources(p, pbm);
+
+	pbm->parent = p;
+	pbm->prom_node = prom_node;
+	prom_getstring(prom_node, "name",
+		       pbm->prom_name,
+		       sizeof(pbm->prom_name));
+
+	err = prom_getproperty(prom_node, "ranges",
+			       (char *)pbm->pbm_ranges,
+			       sizeof(pbm->pbm_ranges));
+	if (err != -1)
+		pbm->num_pbm_ranges =
+			(err / sizeof(struct linux_prom_pci_ranges));
+	else
+		pbm->num_pbm_ranges = 0;
+
+	err = prom_getproperty(prom_node, "interrupt-map",
+			       (char *)pbm->pbm_intmap,
+			       sizeof(pbm->pbm_intmap));
+	if (err != -1) {
+		pbm->num_pbm_intmap = (err / sizeof(struct linux_prom_pci_intmap));
+		err = prom_getproperty(prom_node, "interrupt-map-mask",
+				       (char *)&pbm->pbm_intmask,
+				       sizeof(pbm->pbm_intmask));
+		if (err == -1) {
+			prom_printf("PSYCHO-PBM: Fatal error, no "
+				    "interrupt-map-mask.\n");
+			prom_halt();
+		}
+	} else {
+		pbm->num_pbm_intmap = 0;
+		memset(&pbm->pbm_intmask, 0, sizeof(pbm->pbm_intmask));
+	}
+
+	err = prom_getproperty(prom_node, "bus-range",
+			       (char *)&busrange[0],
+			       sizeof(busrange));
+	if (err == 0 || err == -1) {
+		prom_printf("PSYCHO-PBM: Fatal error, no bus-range.\n");
+		prom_halt();
+	}
+	pbm->pci_first_busno = busrange[0];
+	pbm->pci_last_busno = busrange[1];
+
+	psycho_pbm_strbuf_init(p, pbm, is_pbm_a);
+}
+
+#define PSYCHO_CONFIGSPACE	0x001000000UL
+
+void __init psycho_init(int node, char *model_name)
+{
+	struct linux_prom64_registers pr_regs[3];
+	struct pci_controller_info *p;
+	struct pci_iommu *iommu;
+	u32 upa_portid;
+	int is_pbm_a, err;
+
+	upa_portid = prom_getintdefault(node, "upa-portid", 0xff);
+
+	for(p = pci_controller_root; p; p = p->next) {
+		if (p->pbm_A.portid == upa_portid) {
+			is_pbm_a = (p->pbm_A.prom_node == 0);
+			psycho_pbm_init(p, node, is_pbm_a);
+			return;
+		}
+	}
+
+	p = kmalloc(sizeof(struct pci_controller_info), GFP_ATOMIC);
+	if (!p) {
+		prom_printf("PSYCHO: Fatal memory allocation error.\n");
+		prom_halt();
+	}
+	memset(p, 0, sizeof(*p));
+	iommu = kmalloc(sizeof(struct pci_iommu), GFP_ATOMIC);
+	if (!iommu) {
+		prom_printf("PSYCHO: Fatal memory allocation error.\n");
+		prom_halt();
+	}
+	memset(iommu, 0, sizeof(*iommu));
+	p->pbm_A.iommu = p->pbm_B.iommu = iommu;
+
+	p->next = pci_controller_root;
+	pci_controller_root = p;
+
+	p->pbm_A.portid = upa_portid;
+	p->pbm_B.portid = upa_portid;
+	p->index = pci_num_controllers++;
+	p->pbms_same_domain = 0;
+	p->scan_bus = psycho_scan_bus;
+	p->irq_build = psycho_irq_build;
+	p->base_address_update = psycho_base_address_update;
+	p->resource_adjust = psycho_resource_adjust;
+	p->pci_ops = &psycho_ops;
+
+	err = prom_getproperty(node, "reg",
+			       (char *)&pr_regs[0],
+			       sizeof(pr_regs));
+	if (err == 0 || err == -1) {
+		prom_printf("PSYCHO: Fatal error, no reg property.\n");
+		prom_halt();
+	}
+
+	p->pbm_A.controller_regs = pr_regs[2].phys_addr;
+	p->pbm_B.controller_regs = pr_regs[2].phys_addr;
+	printk("PCI: Found PSYCHO, control regs at %016lx\n",
+	       p->pbm_A.controller_regs);
+
+	p->pbm_A.config_space = p->pbm_B.config_space =
+		(pr_regs[2].phys_addr + PSYCHO_CONFIGSPACE);
+	printk("PSYCHO: Shared PCI config space at %016lx\n",
+	       p->pbm_A.config_space);
+
+	/*
+	 * Psycho's PCI MEM space is mapped to a 2GB aligned area, so
+	 * we need to adjust our MEM space mask.
+	 */
+	pci_memspace_mask = 0x7fffffffUL;
+
+	psycho_controller_hwinit(p);
+
+	psycho_iommu_init(p);
+
+	is_pbm_a = ((pr_regs[0].phys_addr & 0x6000) == 0x2000);
+	psycho_pbm_init(p, node, is_pbm_a);
+}