pci_psycho.c
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- /* $Id: pci_psycho.c,v 1.30.2.2 2002/02/01 00:57:47 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 <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 0xf000000000000000 /* Implementation of this PSYCHO*/
- #define PSYCHO_CONTROL_VER 0x0f00000000000000 /* Version of this PSYCHO */
- #define PSYCHO_CONTROL_MID 0x00f8000000000000 /* UPA Module ID of PSYCHO */
- #define PSYCHO_CONTROL_IGN 0x0007c00000000000 /* Interrupt Group Number */
- #define PSYCHO_CONTROL_RESV 0x00003ffffffffff0 /* Reserved */
- #define PSYCHO_CONTROL_APCKEN 0x0000000000000008 /* Address Parity Check Enable */
- #define PSYCHO_CONTROL_APERR 0x0000000000000004 /* Incoming System Addr Parerr */
- #define PSYCHO_CONTROL_IAP 0x0000000000000002 /* Invert UPA Parity */
- #define PSYCHO_CONTROL_MODE 0x0000000000000001 /* PSYCHO clock mode */
- #define PSYCHO_PCIA_CTRL 0x2000UL
- #define PSYCHO_PCIB_CTRL 0x4000UL
- #define PSYCHO_PCICTRL_RESV1 0xfffffff000000000 /* Reserved */
- #define PSYCHO_PCICTRL_SBH_ERR 0x0000000800000000 /* Streaming byte hole error */
- #define PSYCHO_PCICTRL_SERR 0x0000000400000000 /* SERR signal asserted */
- #define PSYCHO_PCICTRL_SPEED 0x0000000200000000 /* PCI speed (1 is U2P clock) */
- #define PSYCHO_PCICTRL_RESV2 0x00000001ffc00000 /* Reserved */
- #define PSYCHO_PCICTRL_ARB_PARK 0x0000000000200000 /* PCI arbitration parking */
- #define PSYCHO_PCICTRL_RESV3 0x00000000001ff800 /* Reserved */
- #define PSYCHO_PCICTRL_SBH_INT 0x0000000000000400 /* Streaming byte hole int enab */
- #define PSYCHO_PCICTRL_WEN 0x0000000000000200 /* Power Mgmt Wake Enable */
- #define PSYCHO_PCICTRL_EEN 0x0000000000000100 /* PCI Error Interrupt Enable */
- #define PSYCHO_PCICTRL_RESV4 0x00000000000000c0 /* Reserved */
- #define PSYCHO_PCICTRL_AEN 0x000000000000003f /* 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_byte(struct pci_dev *dev, int where, u8 *value)
- {
- struct pci_pbm_info *pbm = pci_bus2pbm[dev->bus->number];
- unsigned char bus = dev->bus->number;
- unsigned int devfn = dev->devfn;
- u8 *addr;
- *value = 0xff;
- 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;
- pci_config_read8(addr, value);
- return PCIBIOS_SUCCESSFUL;
- }
- static int psycho_read_word(struct pci_dev *dev, int where, u16 *value)
- {
- struct pci_pbm_info *pbm = pci_bus2pbm[dev->bus->number];
- unsigned char bus = dev->bus->number;
- unsigned int devfn = dev->devfn;
- u16 *addr;
- *value = 0xffff;
- 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;
- if (where & 0x01) {
- printk("pcibios_read_config_word: misaligned reg [%x]n",
- where);
- return PCIBIOS_SUCCESSFUL;
- }
- pci_config_read16(addr, value);
- return PCIBIOS_SUCCESSFUL;
- }
- static int psycho_read_dword(struct pci_dev *dev, int where, u32 *value)
- {
- struct pci_pbm_info *pbm = pci_bus2pbm[dev->bus->number];
- unsigned char bus = dev->bus->number;
- unsigned int devfn = dev->devfn;
- u32 *addr;
- *value = 0xffffffff;
- 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;
- if (where & 0x03) {
- printk("pcibios_read_config_dword: misaligned reg [%x]n",
- where);
- return PCIBIOS_SUCCESSFUL;
- }
- pci_config_read32(addr, value);
- return PCIBIOS_SUCCESSFUL;
- }
- static int psycho_write_byte(struct pci_dev *dev, int where, u8 value)
- {
- struct pci_pbm_info *pbm = pci_bus2pbm[dev->bus->number];
- unsigned char bus = dev->bus->number;
- unsigned int devfn = dev->devfn;
- u8 *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;
- pci_config_write8(addr, value);
- return PCIBIOS_SUCCESSFUL;
- }
- static int psycho_write_word(struct pci_dev *dev, int where, u16 value)
- {
- struct pci_pbm_info *pbm = pci_bus2pbm[dev->bus->number];
- unsigned char bus = dev->bus->number;
- unsigned int devfn = dev->devfn;
- u16 *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;
- if (where & 0x01) {
- printk("pcibios_write_config_word: misaligned reg [%x]n",
- where);
- return PCIBIOS_SUCCESSFUL;
- }
- pci_config_write16(addr, value);
- return PCIBIOS_SUCCESSFUL;
- }
- static int psycho_write_dword(struct pci_dev *dev, int where, u32 value)
- {
- struct pci_pbm_info *pbm = pci_bus2pbm[dev->bus->number];
- unsigned char bus = dev->bus->number;
- unsigned int devfn = dev->devfn;
- 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;
- if (where & 0x03) {
- printk("pcibios_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 = {
- psycho_read_byte,
- psycho_read_word,
- psycho_read_dword,
- psycho_write_byte,
- psycho_write_word,
- psycho_write_dword
- };
- /* 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*/3, /* SCSI */
- /*0x21*/5, /* Ethernet */
- /*0x22*/8, /* Parallel Port */
- /*0x23*/13, /* Audio Record */
- /*0x24*/14, /* Audio Playback */
- /*0x25*/15, /* PowerFail */
- /*0x26*/3, /* second SCSI */
- /*0x27*/11, /* Floppy */
- /*0x28*/2, /* 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*/1, /* 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 = 1;
- } 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 = 1;
- break;
- };
- }
- return ret;
- }
- static unsigned int __init psycho_irq_build(struct pci_pbm_info *pbm,
- struct pci_dev *pdev,
- unsigned int ino)
- {
- struct pci_controller_info *p = pbm->parent;
- 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);
- imap = p->controller_regs + imap_off;
- imap += 4;
- iclr_off = psycho_iclr_offset(ino);
- iclr = p->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 0x00000000000000f0 /* LRU Lock Pointer */
- #define PSYCHO_STRBUF_CTRL_LENAB 0x0000000000000008 /* LRU Lock Enable */
- #define PSYCHO_STRBUF_CTRL_RRDIS 0x0000000000000004 /* Rerun Disable */
- #define PSYCHO_STRBUF_CTRL_DENAB 0x0000000000000002 /* Diagnostic Mode Enable */
- #define PSYCHO_STRBUF_CTRL_ENAB 0x0000000000000001 /* 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 0x0000000000000002 /* Write Error */
- #define PSYCHO_STCERR_READ 0x0000000000000001 /* Read Error */
- #define PSYCHO_STC_TAG_A 0xb800UL
- #define PSYCHO_STC_TAG_B 0xc800UL
- #define PSYCHO_STCTAG_PPN 0x0fffffff00000000 /* Physical Page Number */
- #define PSYCHO_STCTAG_VPN 0x00000000ffffe000 /* Virtual Page Number */
- #define PSYCHO_STCTAG_VALID 0x0000000000000002 /* Valid */
- #define PSYCHO_STCTAG_WRITE 0x0000000000000001 /* Writable */
- #define PSYCHO_STC_LINE_A 0xb900UL
- #define PSYCHO_STC_LINE_B 0xc900UL
- #define PSYCHO_STCLINE_LINDX 0x0000000001e00000 /* LRU Index */
- #define PSYCHO_STCLINE_SPTR 0x00000000001f8000 /* Dirty Data Start Pointer */
- #define PSYCHO_STCLINE_LADDR 0x0000000000007f00 /* Line Address */
- #define PSYCHO_STCLINE_EPTR 0x00000000000000fc /* Dirty Data End Pointer */
- #define PSYCHO_STCLINE_VALID 0x0000000000000002 /* Valid */
- #define PSYCHO_STCLINE_FOFN 0x0000000000000001 /* Fetch Outstanding / Flush Necessary */
- static spinlock_t stc_buf_lock = SPIN_LOCK_UNLOCKED;
- 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->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_A;
- tag_base = regbase + PSYCHO_STC_TAG_A;
- line_base = regbase + PSYCHO_STC_LINE_A;
- }
- 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 0xfffffffff9000000 /* Reserved */
- #define PSYCHO_IOMMU_CTRL_XLTESTAT 0x0000000006000000 /* Translation Error Status */
- #define PSYCHO_IOMMU_CTRL_XLTEERR 0x0000000001000000 /* Translation Error encountered */
- #define PSYCHO_IOMMU_CTRL_LCKEN 0x0000000000800000 /* Enable translation locking */
- #define PSYCHO_IOMMU_CTRL_LCKPTR 0x0000000000780000 /* Translation lock pointer */
- #define PSYCHO_IOMMU_CTRL_TSBSZ 0x0000000000070000 /* TSB Size */
- #define PSYCHO_IOMMU_TSBSZ_1K 0x0000000000000000 /* TSB Table 1024 8-byte entries */
- #define PSYCHO_IOMMU_TSBSZ_2K 0x0000000000010000 /* TSB Table 2048 8-byte entries */
- #define PSYCHO_IOMMU_TSBSZ_4K 0x0000000000020000 /* TSB Table 4096 8-byte entries */
- #define PSYCHO_IOMMU_TSBSZ_8K 0x0000000000030000 /* TSB Table 8192 8-byte entries */
- #define PSYCHO_IOMMU_TSBSZ_16K 0x0000000000040000 /* TSB Table 16k 8-byte entries */
- #define PSYCHO_IOMMU_TSBSZ_32K 0x0000000000050000 /* TSB Table 32k 8-byte entries */
- #define PSYCHO_IOMMU_TSBSZ_64K 0x0000000000060000 /* TSB Table 64k 8-byte entries */
- #define PSYCHO_IOMMU_TSBSZ_128K 0x0000000000070000 /* TSB Table 128k 8-byte entries */
- #define PSYCHO_IOMMU_CTRL_RESV2 0x000000000000fff8 /* Reserved */
- #define PSYCHO_IOMMU_CTRL_TBWSZ 0x0000000000000004 /* Assumed page size, 0=8k 1=64k */
- #define PSYCHO_IOMMU_CTRL_DENAB 0x0000000000000002 /* Diagnostic mode enable */
- #define PSYCHO_IOMMU_CTRL_ENAB 0x0000000000000001 /* 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->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 0x8000000000000000 /* Primary PIO is cause */
- #define PSYCHO_UEAFSR_PDRD 0x4000000000000000 /* Primary DVMA read is cause */
- #define PSYCHO_UEAFSR_PDWR 0x2000000000000000 /* Primary DVMA write is cause */
- #define PSYCHO_UEAFSR_SPIO 0x1000000000000000 /* Secondary PIO is cause */
- #define PSYCHO_UEAFSR_SDRD 0x0800000000000000 /* Secondary DVMA read is cause */
- #define PSYCHO_UEAFSR_SDWR 0x0400000000000000 /* Secondary DVMA write is cause*/
- #define PSYCHO_UEAFSR_RESV1 0x03ff000000000000 /* Reserved */
- #define PSYCHO_UEAFSR_BMSK 0x0000ffff00000000 /* Bytemask of failed transfer */
- #define PSYCHO_UEAFSR_DOFF 0x00000000e0000000 /* Doubleword Offset */
- #define PSYCHO_UEAFSR_MID 0x000000001f000000 /* UPA MID causing the fault */
- #define PSYCHO_UEAFSR_BLK 0x0000000000800000 /* Trans was block operation */
- #define PSYCHO_UEAFSR_RESV2 0x00000000007fffff /* Reserved */
- #define PSYCHO_UE_AFAR 0x0038UL
- static void psycho_ue_intr(int irq, void *dev_id, struct pt_regs *regs)
- {
- struct pci_controller_info *p = dev_id;
- unsigned long afsr_reg = p->controller_regs + PSYCHO_UE_AFSR;
- unsigned long afar_reg = p->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;
- 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);
- }
- /* Correctable Errors. */
- #define PSYCHO_CE_AFSR 0x0040UL
- #define PSYCHO_CEAFSR_PPIO 0x8000000000000000 /* Primary PIO is cause */
- #define PSYCHO_CEAFSR_PDRD 0x4000000000000000 /* Primary DVMA read is cause */
- #define PSYCHO_CEAFSR_PDWR 0x2000000000000000 /* Primary DVMA write is cause */
- #define PSYCHO_CEAFSR_SPIO 0x1000000000000000 /* Secondary PIO is cause */
- #define PSYCHO_CEAFSR_SDRD 0x0800000000000000 /* Secondary DVMA read is cause */
- #define PSYCHO_CEAFSR_SDWR 0x0400000000000000 /* Secondary DVMA write is cause*/
- #define PSYCHO_CEAFSR_RESV1 0x0300000000000000 /* Reserved */
- #define PSYCHO_CEAFSR_ESYND 0x00ff000000000000 /* Syndrome Bits */
- #define PSYCHO_CEAFSR_BMSK 0x0000ffff00000000 /* Bytemask of failed transfer */
- #define PSYCHO_CEAFSR_DOFF 0x00000000e0000000 /* Double Offset */
- #define PSYCHO_CEAFSR_MID 0x000000001f000000 /* UPA MID causing the fault */
- #define PSYCHO_CEAFSR_BLK 0x0000000000800000 /* Trans was block operation */
- #define PSYCHO_CEAFSR_RESV2 0x00000000007fffff /* Reserved */
- #define PSYCHO_CE_AFAR 0x0040UL
- static void psycho_ce_intr(int irq, void *dev_id, struct pt_regs *regs)
- {
- struct pci_controller_info *p = dev_id;
- unsigned long afsr_reg = p->controller_regs + PSYCHO_CE_AFSR;
- unsigned long afar_reg = p->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;
- 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");
- }
- /* PCI Errors. They are signalled by the PCI bus module since they
- * are assosciated with a specific bus segment.
- */
- #define PSYCHO_PCI_AFSR_A 0x2010UL
- #define PSYCHO_PCI_AFSR_B 0x4010UL
- #define PSYCHO_PCIAFSR_PMA 0x8000000000000000 /* Primary Master Abort Error */
- #define PSYCHO_PCIAFSR_PTA 0x4000000000000000 /* Primary Target Abort Error */
- #define PSYCHO_PCIAFSR_PRTRY 0x2000000000000000 /* Primary Excessive Retries */
- #define PSYCHO_PCIAFSR_PPERR 0x1000000000000000 /* Primary Parity Error */
- #define PSYCHO_PCIAFSR_SMA 0x0800000000000000 /* Secondary Master Abort Error */
- #define PSYCHO_PCIAFSR_STA 0x0400000000000000 /* Secondary Target Abort Error */
- #define PSYCHO_PCIAFSR_SRTRY 0x0200000000000000 /* Secondary Excessive Retries */
- #define PSYCHO_PCIAFSR_SPERR 0x0100000000000000 /* Secondary Parity Error */
- #define PSYCHO_PCIAFSR_RESV1 0x00ff000000000000 /* Reserved */
- #define PSYCHO_PCIAFSR_BMSK 0x0000ffff00000000 /* Bytemask of failed transfer */
- #define PSYCHO_PCIAFSR_BLK 0x0000000080000000 /* Trans was block operation */
- #define PSYCHO_PCIAFSR_RESV2 0x0000000040000000 /* Reserved */
- #define PSYCHO_PCIAFSR_MID 0x000000003e000000 /* MID causing the error */
- #define PSYCHO_PCIAFSR_RESV3 0x0000000001ffffff /* Reserved */
- #define PSYCHO_PCI_AFAR_A 0x2018UL
- #define PSYCHO_PCI_AFAR_B 0x4018UL
- static void 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->controller_regs + PSYCHO_PCI_AFSR_A;
- afar_reg = p->controller_regs + PSYCHO_PCI_AFAR_A;
- } else {
- afsr_reg = p->controller_regs + PSYCHO_PCI_AFSR_B;
- afar_reg = p->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_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);
- }
- /* XXX What about PowerFail/PowerManagement??? -DaveM */
- #define PSYCHO_ECC_CTRL 0x0020
- #define PSYCHO_ECCCTRL_EE 0x8000000000000000 /* Enable ECC Checking */
- #define PSYCHO_ECCCTRL_UE 0x4000000000000000 /* Enable UE Interrupts */
- #define PSYCHO_ECCCTRL_CE 0x2000000000000000 /* 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->controller_regs;
- unsigned int irq, portid = p->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();
- }
- 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();
- }
- 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_SBH_ERR |
- PSYCHO_PCICTRL_SERR |
- PSYCHO_PCICTRL_SBH_INT |
- PSYCHO_PCICTRL_EEN);
- psycho_write(base + PSYCHO_PCIA_CTRL, tmp);
-
- tmp = psycho_read(base + PSYCHO_PCIB_CTRL);
- tmp |= (PSYCHO_PCICTRL_SBH_ERR |
- PSYCHO_PCICTRL_SERR |
- PSYCHO_PCICTRL_SBH_INT |
- PSYCHO_PCICTRL_EEN);
- 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];
- where = PCI_BASE_ADDRESS_0 + (resource * 4);
- 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 & size) |
- (((u32)(res->start - root->start)) & ~size));
- 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);
- }
- /* We have to do the config space accesses by hand, thus... */
- #define PBM_BRIDGE_BUS 0x40
- #define PBM_BRIDGE_SUBORDINATE 0x41
- static void __init pbm_renumber(struct pci_pbm_info *pbm, u8 orig_busno)
- {
- u8 *addr, busno;
- int nbus;
- busno = pci_highest_busnum;
- nbus = pbm->pci_last_busno - pbm->pci_first_busno;
- addr = psycho_pci_config_mkaddr(pbm, orig_busno,
- 0, PBM_BRIDGE_BUS);
- pci_config_write8(addr, busno);
- addr = psycho_pci_config_mkaddr(pbm, busno,
- 0, PBM_BRIDGE_SUBORDINATE);
- pci_config_write8(addr, busno + nbus);
- pbm->pci_first_busno = busno;
- pbm->pci_last_busno = busno + nbus;
- pci_highest_busnum = busno + nbus + 1;
- do {
- pci_bus2pbm[busno++] = pbm;
- } while (nbus--);
- }
- /* We have to do the config space accesses by hand here since
- * the pci_bus2pbm array is not ready yet.
- */
- static void __init pbm_pci_bridge_renumber(struct pci_pbm_info *pbm,
- u8 busno)
- {
- u32 devfn, l, class;
- u8 hdr_type;
- int is_multi = 0;
- for(devfn = 0; devfn < 0xff; ++devfn) {
- u32 *dwaddr;
- u8 *baddr;
- if (PCI_FUNC(devfn) != 0 && is_multi == 0)
- continue;
- /* Anything there? */
- dwaddr = psycho_pci_config_mkaddr(pbm, busno, devfn, PCI_VENDOR_ID);
- l = 0xffffffff;
- pci_config_read32(dwaddr, &l);
- if (l == 0xffffffff || l == 0x00000000 ||
- l == 0x0000ffff || l == 0xffff0000) {
- is_multi = 0;
- continue;
- }
- baddr = psycho_pci_config_mkaddr(pbm, busno, devfn, PCI_HEADER_TYPE);
- pci_config_read8(baddr, &hdr_type);
- if (PCI_FUNC(devfn) == 0)
- is_multi = hdr_type & 0x80;
- dwaddr = psycho_pci_config_mkaddr(pbm, busno, devfn, PCI_CLASS_REVISION);
- class = 0xffffffff;
- pci_config_read32(dwaddr, &class);
- if ((class >> 16) == PCI_CLASS_BRIDGE_PCI) {
- u32 buses = 0xffffffff;
- dwaddr = psycho_pci_config_mkaddr(pbm, busno, devfn,
- PCI_PRIMARY_BUS);
- pci_config_read32(dwaddr, &buses);
- pbm_pci_bridge_renumber(pbm, (buses >> 8) & 0xff);
- buses &= 0xff000000;
- pci_config_write32(dwaddr, buses);
- }
- }
- }
- static void __init pbm_bridge_reconfigure(struct pci_controller_info *p)
- {
- struct pci_pbm_info *pbm;
- u8 *addr;
- /* Clear out primary/secondary/subordinate bus numbers on
- * all PCI-to-PCI bridges under each PBM. The generic bus
- * probing will fix them up.
- */
- pbm_pci_bridge_renumber(&p->pbm_B, p->pbm_B.pci_first_busno);
- pbm_pci_bridge_renumber(&p->pbm_A, p->pbm_A.pci_first_busno);
- /* Move PBM A out of the way. */
- pbm = &p->pbm_A;
- addr = psycho_pci_config_mkaddr(pbm, pbm->pci_first_busno,
- 0, PBM_BRIDGE_BUS);
- pci_config_write8(addr, 0xff);
- addr = psycho_pci_config_mkaddr(pbm, 0xff,
- 0, PBM_BRIDGE_SUBORDINATE);
- pci_config_write8(addr, 0xff);
- /* Now we can safely renumber both PBMs. */
- pbm_renumber(&p->pbm_B, p->pbm_B.pci_first_busno);
- pbm_renumber(&p->pbm_A, 0xff);
- }
- 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_bridge_reconfigure(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->controller_regs + PSYCHO_IOMMU_CONTROL;
- iommu->iommu_tsbbase = p->controller_regs + PSYCHO_IOMMU_TSBBASE;
- iommu->iommu_flush = p->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->controller_regs + PSYCHO_CONTROL;
- /*
- * Invalidate TLB Entries.
- */
- control = psycho_read(p->controller_regs + PSYCHO_IOMMU_CONTROL);
- control |= PSYCHO_IOMMU_CTRL_DENAB;
- psycho_write(p->controller_regs + PSYCHO_IOMMU_CONTROL, control);
- for(i = 0; i < 16; i++) {
- psycho_write(p->controller_regs + PSYCHO_IOMMU_TAG + (i * 8UL), 0);
- psycho_write(p->controller_regs + PSYCHO_IOMMU_DATA + (i * 8UL), 0);
- }
- /* Leave diag mode enabled for full-flushing done
- * in pci_iommu.c
- */
- /* 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;
- memset((char *)tsbbase, 0, 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->controller_regs + PSYCHO_IOMMU_TSBBASE, __pa(tsbbase));
- control = psycho_read(p->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->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->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 0xffffffffffffff80 /* Reserved */
- #define PSYCHO_PCIDIAG_DRETRY 0x0000000000000040 /* Disable retry limit */
- #define PSYCHO_PCIDIAG_DISYNC 0x0000000000000020 /* Disable DMA wr / irq sync */
- #define PSYCHO_PCIDIAG_DDWSYNC 0x0000000000000010 /* Disable DMA wr / PIO rd sync */
- #define PSYCHO_PCIDIAG_IDDPAR 0x0000000000000008 /* Invert DMA data parity */
- #define PSYCHO_PCIDIAG_IPDPAR 0x0000000000000004 /* Invert PIO data parity */
- #define PSYCHO_PCIDIAG_IPAPAR 0x0000000000000002 /* Invert PIO address parity */
- #define PSYCHO_PCIDIAG_LPBACK 0x0000000000000001 /* 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->controller_regs + PSYCHO_IRQ_RETRY, 0xff);
- /* Enable arbiter for all PCI slots. */
- tmp = psycho_read(p->controller_regs + PSYCHO_PCIA_CTRL);
- tmp |= PSYCHO_PCICTRL_AEN;
- psycho_write(p->controller_regs + PSYCHO_PCIA_CTRL, tmp);
- tmp = psycho_read(p->controller_regs + PSYCHO_PCIB_CTRL);
- tmp |= PSYCHO_PCICTRL_AEN;
- psycho_write(p->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->controller_regs + PSYCHO_PCIA_DIAG);
- tmp |= PSYCHO_PCIDIAG_DDWSYNC;
- psycho_write(p->controller_regs + PSYCHO_PCIA_DIAG, tmp);
- tmp = psycho_read(p->controller_regs + PSYCHO_PCIB_DIAG);
- tmp |= PSYCHO_PCIDIAG_DDWSYNC;
- psycho_write(p->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 = p->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 = p->controller_regs + PSYCHO_IOSPACE_A;
- pbm->mem_space.start = p->controller_regs + PSYCHO_MEMSPACE_A;
- } else {
- pbm = &p->pbm_B;
- pbm->pci_first_slot = 2;
- pbm->io_space.start = p->controller_regs + PSYCHO_IOSPACE_B;
- pbm->mem_space.start = p->controller_regs + PSYCHO_MEMSPACE_B;
- }
- 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;
- unsigned long flags;
- u32 upa_portid;
- int is_pbm_a, err;
- upa_portid = prom_getintdefault(node, "upa-portid", 0xff);
- spin_lock_irqsave(&pci_controller_lock, flags);
- for(p = pci_controller_root; p; p = p->next) {
- if (p->portid == upa_portid) {
- spin_unlock_irqrestore(&pci_controller_lock, flags);
- is_pbm_a = (p->pbm_A.prom_node == 0);
- psycho_pbm_init(p, node, is_pbm_a);
- return;
- }
- }
- spin_unlock_irqrestore(&pci_controller_lock, flags);
- 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;
- spin_lock_irqsave(&pci_controller_lock, flags);
- p->next = pci_controller_root;
- pci_controller_root = p;
- spin_unlock_irqrestore(&pci_controller_lock, flags);
- p->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->controller_regs = pr_regs[2].phys_addr;
- printk("PCI: Found PSYCHO, control regs at %016lxn",
- p->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 %016lxn",
- 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);
- }