First pass at removing Alpha kernel support.

1 files changed, 0 insertions, 805 deletions

diff --git a/sys/alpha/mcbus/mcpcia.c b/sys/alpha/mcbus/mcpcia.c
deleted file mode 100644
index 3b2f378..0000000
--- a/sys/alpha/mcbus/mcpcia.c
+++ /dev/null
@@ -1,805 +0,0 @@
-/*-
- * Copyright (c) 2000 Matthew Jacob
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions
- * are met:
- * 1. Redistributions of source code must retain the above copyright
- *    notice, this list of conditions and the following disclaimer.
- * 2. Redistributions in binary form must reproduce the above copyright
- *    notice, this list of conditions and the following disclaimer in the
- *    documentation and/or other materials provided with the distribution.
- *
- * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
- * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
- * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
- * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
- * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
- * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
- * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
- * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
- * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
- * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
- * SUCH DAMAGE.
- */
-
-#include <sys/cdefs.h>
-__FBSDID("$FreeBSD$");
-
-#include <sys/param.h>
-#include <sys/systm.h>
-#include <sys/kernel.h>
-#include <sys/lock.h>
-#include <sys/malloc.h>
-#include <sys/module.h>
-#include <sys/mutex.h>
-#include <sys/bus.h>
-#include <sys/cons.h>
-#include <machine/bus.h>
-#include <machine/md_var.h>
-#include <sys/proc.h>
-#include <sys/rman.h>
-#include <sys/interrupt.h>
-
-#include <machine/swiz.h>
-#include <machine/intr.h>
-#include <machine/intrcnt.h>
-#include <machine/resource.h>
-#include <machine/sgmap.h>
-#include <machine/prom.h>
-#include <vm/vm.h>
-#include <vm/vm_page.h>
- 
-
-#include <alpha/mcbus/mcbusreg.h>
-#include <alpha/mcbus/mcbusvar.h>
-
-#include <alpha/mcbus/mcpciareg.h>
-#include <alpha/mcbus/mcpciavar.h>
-#include <alpha/pci/pcibus.h>
-#include <dev/pci/pcireg.h>
-#include <dev/pci/pcivar.h>
-
-#include "alphapci_if.h"
-#include "pcib_if.h"
-
-static devclass_t	mcpcia_devclass;
-
-/* We're only allowing for one MCBUS right now */
-static device_t		mcpcias[MCPCIA_PER_MCBUS];
-
-#define KV(pa)		((void *)ALPHA_PHYS_TO_K0SEG(pa))
-
-struct mcpcia_softc {
-	struct mcpcia_softc *next;
-	device_t	dev;		/* backpointer */
-	u_int64_t	sysbase;	/* shorthand */
-	vm_offset_t	dmem_base;	/* dense memory */
-	vm_offset_t	smem_base;	/* sparse memory */
-	vm_offset_t	io_base;	/* sparse i/o */
-	int		mcpcia_inst;	/* our mcpcia instance # */
-	struct swiz_space io_space;	/* accessor for ports */
-	struct swiz_space mem_space;	/* accessor for memory */
-	struct rman	io_rman;	/* resource manager for ports */
-	struct rman	mem_rman;	/* resource manager for memory */
-};
-static struct mcpcia_softc *mcpcia_eisa = NULL;
-extern void dec_kn300_cons_init(void);
-
-static driver_intr_t mcpcia_intr;
-static void mcpcia_enable_intr(struct mcpcia_softc *, int);
-static void mcpcia_disable_intr(struct mcpcia_softc *, int);
-
-/*
- * SGMAP window for ISA: 8M at 8M
- */
-#define	MCPCIA_ISA_SG_MAPPED_BASE	(8*1024*1024)
-#define	MCPCIA_ISA_SG_MAPPED_SIZE	(8*1024*1024)
-
-/*
- * Direct-mapped window: 2G at 2G
- */
-#define	MCPCIA_DIRECT_MAPPED_BASE	(2UL*1024UL*1024UL*1024UL)
-#define	MCPCIA_DIRECT_MAPPED_SIZE	(2UL*1024UL*1024UL*1024UL)
-
-/*
- * SGMAP window for PCI: 1G at 1G
- */
-#define	MCPCIA_PCI_SG_MAPPED_BASE	(1UL*1024UL*1024UL*1024UL)
-#define	MCPCIA_PCI_SG_MAPPED_SIZE	(1UL*1024UL*1024UL*1024UL)
-
-#define	MCPCIA_SGTLB_INVALIDATE(sc)					\
-do {									\
-	alpha_mb();							\
-	REGVAL(MCPCIA_SG_TBIA(sc)) = 0xdeadbeef;			\
-	alpha_mb();							\
-} while (0)
-
-static void mcpcia_dma_init(struct mcpcia_softc *);
-static void mcpcia_sgmap_map(void *, bus_addr_t, vm_offset_t);
-
-#define MCPCIA_SOFTC(dev)	(struct mcpcia_softc *) device_get_softc(dev)
-
-static struct mcpcia_softc *mcpcia_root;
-
-/*
- * Early console support requires us to partially probe the bus to
- * find the ISA bus resources.
- */
-void
-mcpcia_init(int gid, int mid)
-{
-	static struct swiz_space io_space;
-	static struct swiz_space mem_space;
-	u_int64_t sysbase;
-	vm_offset_t regs, io_base, smem_base;
-
-	sysbase = MCBUS_IOSPACE |
-		(((u_int64_t) gid) << MCBUS_GID_SHIFT) |
-		(((u_int64_t) mid) << MCBUS_MID_SHIFT);
-
-	if (EISA_PRESENT(REGVAL(sysbase
-				| MCPCIA_PCI_BRIDGE
-				| _MCPCIA_PCI_REV))) {
-		/*
-		 * Define temporary spaces for bootstrap i/o.
-		 */
-		regs	  = (vm_offset_t) KV(sysbase);
-		io_base	  = regs + MCPCIA_PCI_IOSPACE;
-		smem_base = regs + MCPCIA_PCI_SPARSE;
-
-		swiz_init_space(&io_space, io_base);
-		swiz_init_space(&mem_space, smem_base);
-
-		busspace_isa_io = (struct alpha_busspace *) &io_space;
-		busspace_isa_mem = (struct alpha_busspace *) &mem_space;
-	}
-}
-
-static int
-mcpcia_probe(device_t dev)
-{
-	device_t child;
-	int unit;
-	struct mcpcia_softc *xc, *sc = MCPCIA_SOFTC(dev);
-
-	unit = device_get_unit(dev);
-	if (mcpcias[unit]) {
-		printf("%s: already attached\n", device_get_nameunit(dev));
-		return EEXIST;
-	}
-	sc->mcpcia_inst = unit;
-	if ((xc = mcpcia_root) == NULL) {
-		chipset.pci_sgmap = NULL;
-		mcpcia_root = sc;
-	} else {
-		while (xc->next)
-			xc = xc->next;
-		xc->next = sc;
-	}
-	sc->dev = mcpcias[unit] = dev;
-	/* PROBE ? */
-	device_set_desc(dev, "MCPCIA PCI Adapter");
-	if (unit == 0) {
-		pci_init_resources();
-	}
-	child = device_add_child(dev, "pci", -1);
-	device_set_ivars(child, &sc->mcpcia_inst);
-	return (0);
-}
-
-static int
-mcpcia_attach(device_t dev)
-{
-	struct mcpcia_softc *sc = MCPCIA_SOFTC(dev);
-	device_t p = device_get_parent(dev);
-	vm_offset_t regs;
-	u_int32_t ctl;
-	int mid, gid, rval;
-	void *intr;
-
-	mid = mcbus_get_mid(dev);
-	gid = mcbus_get_gid(dev);
-
-	sc->sysbase = MCBUS_IOSPACE |
-	    (((u_int64_t) gid) << MCBUS_GID_SHIFT) | \
-	    (((u_int64_t) mid) << MCBUS_MID_SHIFT);
-	regs		= (vm_offset_t) KV(sc->sysbase);
-	sc->dmem_base	= regs + MCPCIA_PCI_DENSE;
-	sc->smem_base	= regs + MCPCIA_PCI_SPARSE;
-	sc->io_base	= regs + MCPCIA_PCI_IOSPACE;
-
-	swiz_init_space(&sc->io_space, sc->io_base);
-	swiz_init_space(&sc->mem_space, sc->smem_base);
-
-	sc->io_rman.rm_start = 0;
-	sc->io_rman.rm_end = ~0u;
-	sc->io_rman.rm_type = RMAN_ARRAY;
-	sc->io_rman.rm_descr = "I/O ports";
-	if (rman_init(&sc->io_rman)
-	    || rman_manage_region(&sc->io_rman, 0x0, (1L << 32)))
-		panic("mcpcia_attach: io_rman");
-
-	sc->mem_rman.rm_start = 0;
-	sc->mem_rman.rm_end = ~0u;
-	sc->mem_rman.rm_type = RMAN_ARRAY;
-	sc->mem_rman.rm_descr = "I/O memory";
-	if (rman_init(&sc->mem_rman)
-	    || rman_manage_region(&sc->mem_rman, 0x0, (1L << 32)))
-		panic("mcpcia_attach: mem_rman");
-
-	/*
- 	 * Disable interrupts and clear errors prior to probing
-	 */
-	REGVAL(MCPCIA_INT_MASK0(sc)) = 0;
-	REGVAL(MCPCIA_INT_MASK1(sc)) = 0;
-	REGVAL(MCPCIA_CAP_ERR(sc)) = 0xFFFFFFFF;
-	alpha_mb();
-
-	/*
-	 * Say who we are
-	 */
-	ctl = REGVAL(MCPCIA_PCI_REV(sc));
-	printf("%s: Horse Revision %d, %s Handed Saddle Revision %d,"
-	    " CAP Revision %d\n", device_get_nameunit(dev), HORSE_REV(ctl),
-	    (SADDLE_TYPE(ctl) & 1)? "Right": "Left", SADDLE_REV(ctl),
-	    CAP_REV(ctl));
-
-	/*
-	 * See if we're the fella with the EISA bus...
-	 */
-
-	if (EISA_PRESENT(REGVAL(MCPCIA_PCI_REV(sc)))) {
-		mcpcia_eisa = sc;
-	}
-
-	/*
-	 * Set up DMA stuff here.
-	 */
-
-	mcpcia_dma_init(sc);
-
-	/*
-	 * Register our interrupt service requirements with our parent.
-	 */
-	rval =
-	    BUS_SETUP_INTR(p, dev, NULL, INTR_TYPE_MISC, mcpcia_intr, 0, &intr);
-	if (rval == 0) {
-		if (sc == mcpcia_eisa) {
-			busspace_isa_io = (struct alpha_busspace *)
-				&sc->io_space;
-			busspace_isa_mem = (struct alpha_busspace *)
-				&sc->mem_space;
-			/*
-			 * Enable EISA interrupts.
-			 */
-			mcpcia_enable_intr(sc, 16);
-		}
-		bus_generic_attach(dev);
-	}
-	return (rval);
-}
-
-static void
-mcpcia_enable_intr(struct mcpcia_softc *sc, int irq)
-{
-
-	REGVAL(MCPCIA_INT_MASK0(sc)) |= (1 << irq);
-	alpha_mb();
-}
-
-static void
-mcpcia_disable_intr(struct mcpcia_softc *sc, int irq)
-{
-
-	/*
-	 * We need to write to INT_REQ as well as INT_MASK0 in case we
-	 * are trying to mask an interrupt which is already
-	 * asserted. Writing a 1 bit to INT_REQ clears the
-	 * corresponding bit in the register.
-	 */
- 	REGVAL(MCPCIA_INT_MASK0(sc)) &= ~(1 << irq);
-	REGVAL(MCPCIA_INT_REQ(sc)) = (1 << irq);
-	alpha_mb();
-}
-
-static void
-mcpcia_disable_intr_vec(uintptr_t vector)
-{
-	int mid, irq;
-	struct mcpcia_softc *sc = mcpcia_root;
-
-	if (vector < MCPCIA_VEC_PCI) {
-		printf("EISA disable (0x%lx)\n", vector);
-		return;
-	}
-
-	if (vector == MCPCIA_VEC_NCR) {
-		mid = 5;
-		irq = 16;
-	} else {
-		int tmp, slot;
-                tmp = vector - MCPCIA_VEC_PCI;
-                mid = (tmp / MCPCIA_VECWIDTH_PER_MCPCIA) + 4;
-		tmp &= (MCPCIA_VECWIDTH_PER_MCPCIA - 1);
-		slot = tmp / MCPCIA_VECWIDTH_PER_SLOT;
-		if (slot < 2 || slot > 5) {
-			printf("Bad slot (%d) for vector %lx\n", slot, vector);
-			return;
-		}
-		tmp -= (2 * MCPCIA_VECWIDTH_PER_SLOT);
-		irq = (tmp >> MCPCIA_VECWIDTH_PER_INTPIN) & 0xf;
-	}
-/*	printf("D<%03x>=%d,%d\n", vector, mid, irq); */
-	while (sc) {
-		if (mcbus_get_mid(sc->dev) == mid) {
-			break;
-		}
-		sc = sc->next;
-	}
-	if (sc == NULL) {
-		panic("couldn't find MCPCIA softc for vector 0x%lx", vector);
-	}
-	mtx_lock_spin(&icu_lock);
-	mcpcia_disable_intr(sc, irq);
-	mtx_unlock_spin(&icu_lock);
-}
-
-static void
-mcpcia_enable_intr_vec(uintptr_t vector)
-{
-	int mid, irq;
-	struct mcpcia_softc *sc = mcpcia_root;
-
-	if (vector < MCPCIA_VEC_PCI) {
-		printf("EISA ensable (0x%lx)\n", vector);
-		return;
-	}
-
-	if (vector == MCPCIA_VEC_NCR) {
-		mid = 5;
-		irq = 16;
-	} else {
-		int tmp, slot;
-                tmp = vector - MCPCIA_VEC_PCI;
-                mid = (tmp / MCPCIA_VECWIDTH_PER_MCPCIA) + 4;
-		tmp &= (MCPCIA_VECWIDTH_PER_MCPCIA - 1);
-		slot = tmp / MCPCIA_VECWIDTH_PER_SLOT;
-		if (slot < 2 || slot > 5) {
-			printf("Bad slot (%d) for vector %lx\n", slot, vector);
-			return;
-		}
-		tmp -= (2 * MCPCIA_VECWIDTH_PER_SLOT);
-		irq = (tmp >> MCPCIA_VECWIDTH_PER_INTPIN) & 0xf;
-	}
-/*	printf("E<%03x>=%d,%d\n", vector, mid, irq); */
-	while (sc) {
-		if (mcbus_get_mid(sc->dev) == mid) {
-			break;
-		}
-		sc = sc->next;
-	}
-	if (sc == NULL) {
-		panic("couldn't find MCPCIA softc for vector 0x%lx", vector);
-	}
-	mtx_lock_spin(&icu_lock);
-	mcpcia_enable_intr(sc, irq);
-	mtx_unlock_spin(&icu_lock);
-}
-
-static int
-mcpcia_pci_route_interrupt(device_t bus, device_t dev, int pin)
-{
-	int irq, slot, mid;
-
-	/*
-	 * Validate requested pin number.
-	 */
-	if ((pin < 1) || (pin > 4)) {
-		printf("mcpcia_pci_route_interrupt: bad interrupt pin %d\n",
-		    pin);
-		return(255);
-	}
-
-	slot = pci_get_slot(dev);
-	mid = mcbus_get_mid(bus);
-
-#if 0
-	printf("mcpcia_pci_route_interrupt: called for slot=%d, pin=%d, mid=%d\n", slot, pin, mid);
-#endif
-
-	if (mid == 5 && slot == 1) {
-		irq = 16;	/* MID 5, slot 1, is the internal NCR 53c810 */
-	} else if (slot >= 2 && slot <= 5) {
-		irq = ((slot - 2) * 4) + (pin - 1);
-	} else {
-		printf("mcpcia_pci_route_interrupt: weird device number %d\n",
-		    slot);
-		return (255);
-	}
-
-	return(irq);
-}
-
-static int
-mcpcia_setup_intr(device_t dev, device_t child, struct resource *ir, int flags,
-       driver_intr_t *intr, void *arg, void **cp)
-{
-	struct mcpcia_softc *sc = MCPCIA_SOFTC(dev);
-	int mid, birq, irq, error, h;
-	
-	irq = rman_get_start(ir);
-	mid = mcbus_get_mid(dev);
-
-	error = rman_activate_resource(ir);
-	if (error)
-		return error;
-
-	/*
-	 * We now construct a vector as the hardware would, unless
-	 * this is the internal NCR 53c810 interrupt.
-	 */
-	if (irq == 16) {
-		h = MCPCIA_VEC_NCR;
-	} else {
-		h = MCPCIA_VEC_PCI +
-		    ((mid - MCPCIA_PCI_MIDMIN) * MCPCIA_VECWIDTH_PER_MCPCIA) +
-		    irq * MCPCIA_VECWIDTH_PER_INTPIN +
-		    2 * MCPCIA_VECWIDTH_PER_SLOT;
-	}
-	birq = irq + INTRCNT_KN300_IRQ;
-	error = alpha_setup_intr(device_get_nameunit(child), h,
-	    intr, arg, flags, cp, &intrcnt[birq],
-	    mcpcia_disable_intr_vec, mcpcia_enable_intr_vec);
-	if (error)
-		return error;
-	mtx_lock_spin(&icu_lock);
-	mcpcia_enable_intr(sc, irq);
-	mtx_unlock_spin(&icu_lock);
-	device_printf(child, "interrupting at IRQ 0x%x (vec 0x%x)\n",
-	    irq , h);
-	return (0);
-}
-
-static int
-mcpcia_teardown_intr(device_t dev, device_t child, struct resource *i, void *c)
-{
-	struct mcpcia_softc *sc = MCPCIA_SOFTC(dev);
-
-	mtx_lock_spin(&icu_lock);
-	mcpcia_disable_intr(sc, rman_get_start(i));
-	mtx_unlock_spin(&icu_lock);
-	alpha_teardown_intr(c);
-	return (rman_deactivate_resource(i));
-}
-
-static int
-mcpcia_read_ivar(device_t dev, device_t child, int which, u_long *result)
-{
-	switch (which) {
-	case  PCIB_IVAR_BUS:
-		*result = 0;
-		return 0;
-	}
-	return ENOENT;
-}
-
-static void *
-mcpcia_cvt_dense(device_t dev, vm_offset_t addr)
-{
-	struct mcpcia_softc *sc = MCPCIA_SOFTC(dev);
-
-	addr &= 0xffffffffUL;
-	return (void *) KV(addr | sc->dmem_base);
-	
-}
-
-static struct alpha_busspace *
-mcpcia_get_bustag(device_t dev, int type)
-{
-	struct mcpcia_softc *sc = MCPCIA_SOFTC(dev);
-
-	switch (type) {
-	case SYS_RES_IOPORT:
-		return (struct alpha_busspace *) &sc->io_space;
-
-	case SYS_RES_MEMORY:
-		return (struct alpha_busspace *) &sc->mem_space;
-	}
-
-	return 0;
-}
-
-static struct rman *
-mcpcia_get_rman(device_t dev, int type)
-{
-	struct mcpcia_softc *sc = MCPCIA_SOFTC(dev);
-
-	switch (type) {
-	case SYS_RES_IOPORT:
-		return &sc->io_rman;
-
-	case SYS_RES_MEMORY:
-		return &sc->mem_rman;
-	}
-
-	return 0;
-}
-
-static int
-mcpcia_maxslots(device_t dev)
-{
-	return (MCPCIA_MAXDEV);
-}
-
-static u_int32_t
-mcpcia_read_config(device_t dev, int bus, int slot, int func,
-		   int off, int sz)
-{
-	struct mcpcia_softc *sc = MCPCIA_SOFTC(dev);
-	u_int32_t *dp, data, rvp;
-	u_int64_t paddr;
-
-	if ((off == PCIR_INTLINE) && (sz == 1)) {
-		/* SRM left bad value; let intr_route fill them in later */
-		return ~0;
-	}
-
-	rvp = data = ~0;
-
-	/*
-	 * There's nothing in slot 0 on a primary bus.
-	 */
-	if (bus == 0 && (slot < 1 || slot >= MCPCIA_MAXDEV))
-		return (data);
-
-	paddr = bus << 21;
-	paddr |= slot << 16;
-	paddr |= func << 13;
-	paddr |= ((sz - 1) << 3);
-	paddr |= ((unsigned long) ((off >> 2) << 7));
-	paddr |= MCPCIA_PCI_CONF;
-	paddr |= sc->sysbase;
-	dp = (u_int32_t *)KV(paddr);
-
-#if	0
-printf("CFGREAD MID %d %d.%d.%d sz %d off %d -> paddr 0x%x",
-mcbus_get_mid(dev), bus , slot, func, sz, off, paddr);
-#endif
-	if (badaddr(dp, sizeof (*dp)) == 0) {
-		data = *dp;
-	}
-	if (data != ~0) {
-		if (sz == 1) {
-			rvp = SPARSE_BYTE_EXTRACT(off, data);
-		} else if (sz == 2) {
-			rvp = SPARSE_WORD_EXTRACT(off, data);
-		} else {
-			rvp = data;
-		}
-	} else {
-		rvp = data;
-	}
-
-#if	0
-printf(" data 0x%x -> 0x%x\n", data, rvp);
-#endif
-	return (rvp);
-}
-
-static void
-mcpcia_write_config(device_t dev, int bus, int slot, int func,
-		    int off, u_int32_t data, int sz)
-{
-	struct mcpcia_softc *sc = MCPCIA_SOFTC(dev);
-	u_int32_t *dp;
-	u_int64_t paddr;
-
-	/*
-	 * There's nothing in slot 0 on a primary bus.
-	 */
-	if (bus != 0 && (slot < 1 || slot >= MCPCIA_MAXDEV))
-		return;
-
-	paddr = bus << 21;
-	paddr |= slot << 16;
-	paddr |= func << 13;
-	paddr |= ((sz - 1) << 3);
-	paddr |= ((unsigned long) ((off >> 2) << 7));
-	paddr |= MCPCIA_PCI_CONF;
-	paddr |= sc->sysbase;
-	dp = (u_int32_t *)KV(paddr);
-
-	if (badaddr(dp, sizeof (*dp)) == 0) {
-		u_int32_t new_data;
-		if (sz == 1) {
-			new_data = SPARSE_BYTE_INSERT(off, data);
-		} else if (sz == 2) {
-			new_data = SPARSE_WORD_INSERT(off, data);
-		} else  {
-			new_data = data;
-		}
-
-#if	0
-printf("CFGWRITE MID%d %d.%d.%d sz %d off %d paddr %lx, data %x new_data %x\n",
-mcbus_get_mid(dev), bus , slot, func, sz, off, paddr, data, new_data);
-#endif
-
-		*dp = new_data;
-	}
-}
-
-static void
-mcpcia_sgmap_map(void *arg, bus_addr_t ba, vm_offset_t pa)
-{
-	struct mcpcia_softc *sc;
-	u_int64_t *sgtable = arg;
-	int index = alpha_btop(ba - MCPCIA_ISA_SG_MAPPED_BASE);
-
-	if (pa) {
-		/* XXX */
-		if (pa > (1L<<32))
-			panic("mcpcia_sgmap_map: can't map address 0x%lx", pa);
-		sgtable[index] = ((pa >> 13) << 1) | 1;
-	} else {
-		sgtable[index] = 0;
-	}
-	alpha_mb();
-	if ((struct sgmap*)sgtable == chipset.sgmap) 
-		MCPCIA_SGTLB_INVALIDATE(mcpcia_eisa);
-	else {
-		for (sc = mcpcia_root; sc != NULL; sc = sc->next)
-			MCPCIA_SGTLB_INVALIDATE(sc);
-	}
-}
-
-static void
-mcpcia_dma_init(struct mcpcia_softc *sc)
-{
-	void *sgtable;
-
-	/*
-	 * Disable all windows first.
-	 */
-
-	REGVAL(MCPCIA_W0_BASE(sc)) = 0;
-	REGVAL(MCPCIA_W1_BASE(sc)) = 0;
-	REGVAL(MCPCIA_W2_BASE(sc)) = 0;
-	REGVAL(MCPCIA_W3_BASE(sc)) = 0;
-	REGVAL(MCPCIA_T0_BASE(sc)) = 0;
-	REGVAL(MCPCIA_T1_BASE(sc)) = 0;
-	REGVAL(MCPCIA_T2_BASE(sc)) = 0;
-	REGVAL(MCPCIA_T3_BASE(sc)) = 0;
-	alpha_mb();
-
-	/*
-	 * Set up window 0 as an 8MB SGMAP-mapped window starting at 8MB.
-	 * Do this only for the EISA carrying MCPCIA. Partly because
-	 * there's only one chipset sgmap thingie.
-	 */
-
-	if (sc == mcpcia_eisa) {
-		REGVAL(MCPCIA_W0_MASK(sc)) = MCPCIA_WMASK_8M;
-
-		sgtable = contigmalloc(8192, M_DEVBUF,
-		    M_NOWAIT, 0, 1L<<34, 32<<10, 1L<<34);
-
-		if (sgtable == NULL) {
-			panic("mcpcia_dma_init: cannot allocate sgmap");
-			/* NOTREACHED */
-		}
-		REGVAL(MCPCIA_T0_BASE(sc)) =
-		    pmap_kextract((vm_offset_t)sgtable) >> MCPCIA_TBASEX_SHIFT;
-
-		alpha_mb();
-		REGVAL(MCPCIA_W0_BASE(sc)) = MCPCIA_WBASE_EN |
-		    MCPCIA_WBASE_SG | MCPCIA_ISA_SG_MAPPED_BASE;
-		alpha_mb();
-		MCPCIA_SGTLB_INVALIDATE(sc);
-		chipset.sgmap = sgmap_map_create(MCPCIA_ISA_SG_MAPPED_BASE,
-		    MCPCIA_ISA_SG_MAPPED_BASE + MCPCIA_ISA_SG_MAPPED_SIZE - 1,
-		    mcpcia_sgmap_map, sgtable);
-	}
-
-	/*
-	 * Set up window 1 as a 2 GB Direct-mapped window starting at 2GB.
-	 */
-
-	chipset.dmsize = 2UL * 1024UL * 1024UL * 1024UL;
-	chipset.dmoffset = MCPCIA_DIRECT_MAPPED_BASE;
-	REGVAL(MCPCIA_W1_MASK(sc)) = MCPCIA_WMASK_2G;
-	REGVAL(MCPCIA_T1_BASE(sc)) = 0;
-	alpha_mb();
-	REGVAL(MCPCIA_W1_BASE(sc)) =
-		MCPCIA_DIRECT_MAPPED_BASE | MCPCIA_WBASE_EN;
-	alpha_mb();
-
-	if (alpha_ptob(Maxmem) <= chipset.dmsize)
-		return;
-
-	/*
-	 * Set up window 2 as a 1G SGMAP-mapped window starting at 1G.
-	 */
-
-	if (chipset.pci_sgmap == NULL) {
-		sgtable = contigmalloc(1048576, M_DEVBUF,
-		    M_NOWAIT, 0, 1L<<34, 32<<10, 1L<<34);
-		if (sgtable == NULL) {
-			panic("mcpcia_dma_init: cannot allocate pci_sgmap");
-			/* NOTREACHED */
-		}
-		chipset.pci_sgmap = sgmap_map_create(MCPCIA_PCI_SG_MAPPED_BASE,
-		    MCPCIA_PCI_SG_MAPPED_BASE + MCPCIA_PCI_SG_MAPPED_SIZE - 1,
-		    mcpcia_sgmap_map, sgtable);
-	}
-	REGVAL(MCPCIA_W2_MASK(sc)) = MCPCIA_WMASK_1G;
-	REGVAL(MCPCIA_T2_BASE(sc)) =
-	    pmap_kextract((vm_offset_t)chipset.pci_sgmap) >>
-	    MCPCIA_TBASEX_SHIFT;
-	alpha_mb();
-	REGVAL(MCPCIA_W2_BASE(sc)) =
-		MCPCIA_WBASE_EN | MCPCIA_WBASE_SG | MCPCIA_PCI_SG_MAPPED_BASE;
-	alpha_mb();
-	MCPCIA_SGTLB_INVALIDATE(sc);
-}
-
-/*
- */
-
-static void
-mcpcia_intr(void *arg)
-{
-	unsigned long vec = (unsigned long) arg;
-
-	/*
-	 * Check for I2C interrupts.  These are technically within
-	 * the PCI vector range, but no PCI device should ever map
-	 * to them.
-	 */
-	if (vec == MCPCIA_I2C_CVEC) {
-		printf("i2c: controller interrupt\n");
-		return;
-	}
-	if (vec == MCPCIA_I2C_BVEC) {
-		printf("i2c: bus interrupt\n");
-		return;
-	}
-
-	alpha_dispatch_intr(NULL, vec);
-}
-
-static device_method_t mcpcia_methods[] = {
-	/* Device interface */
-	DEVMETHOD(device_probe,			mcpcia_probe),
-	DEVMETHOD(device_attach,		mcpcia_attach),
-
-	/* Bus interface */
-	DEVMETHOD(bus_print_child,		bus_generic_print_child),
-	DEVMETHOD(bus_read_ivar,		mcpcia_read_ivar),
-	DEVMETHOD(bus_setup_intr,		mcpcia_setup_intr),
-	DEVMETHOD(bus_teardown_intr,		mcpcia_teardown_intr),
-	DEVMETHOD(bus_alloc_resource,		alpha_pci_alloc_resource),
-	DEVMETHOD(bus_release_resource,		pci_release_resource),
-	DEVMETHOD(bus_activate_resource,	pci_activate_resource),
-	DEVMETHOD(bus_deactivate_resource,	pci_deactivate_resource),
-
-	/* alphapci interface */
-	DEVMETHOD(alphapci_cvt_dense,		mcpcia_cvt_dense),
-	DEVMETHOD(alphapci_get_bustag,		mcpcia_get_bustag),
-	DEVMETHOD(alphapci_get_rman,		mcpcia_get_rman),
-
-	/* pcib interface */
-	DEVMETHOD(pcib_maxslots,		mcpcia_maxslots),
-	DEVMETHOD(pcib_read_config,		mcpcia_read_config),
-	DEVMETHOD(pcib_write_config,		mcpcia_write_config),
-	DEVMETHOD(pcib_route_interrupt,		mcpcia_pci_route_interrupt),
-
-	{ 0, 0 }
-};
-
-static driver_t mcpcia_driver = {
-	"pcib", mcpcia_methods, sizeof (struct mcpcia_softc)
-};
-
-DRIVER_MODULE(pcib, mcbus, mcpcia_driver, mcpcia_devclass, 0, 0);