[deliverable/linux.git] / arch / alpha / kernel / sys_dp264.c

/*
 *	linux/arch/alpha/kernel/sys_dp264.c
 *
 *	Copyright (C) 1995 David A Rusling
 *	Copyright (C) 1996, 1999 Jay A Estabrook
 *	Copyright (C) 1998, 1999 Richard Henderson
 *
 *	Modified by Christopher C. Chimelis, 2001 to
 *	add support for the addition of Shark to the
 *	Tsunami family.
 *
 * Code supporting the DP264 (EV6+TSUNAMI).
 */

#include <linux/kernel.h>
#include <linux/types.h>
#include <linux/mm.h>
#include <linux/sched.h>
#include <linux/pci.h>
#include <linux/init.h>
#include <linux/bitops.h>

#include <asm/ptrace.h>
#include <asm/system.h>
#include <asm/dma.h>
#include <asm/irq.h>
#include <asm/mmu_context.h>
#include <asm/io.h>
#include <asm/pgtable.h>
#include <asm/core_tsunami.h>
#include <asm/hwrpb.h>
#include <asm/tlbflush.h>

#include "proto.h"
#include "irq_impl.h"
#include "pci_impl.h"
#include "machvec_impl.h"


/* Note mask bit is true for ENABLED irqs.  */
static unsigned long cached_irq_mask;
/* dp264 boards handle at max four CPUs */
static unsigned long cpu_irq_affinity[4] = { 0UL, 0UL, 0UL, 0UL };

DEFINE_SPINLOCK(dp264_irq_lock);

static void
tsunami_update_irq_hw(unsigned long mask)
{
	register tsunami_cchip *cchip = TSUNAMI_cchip;
	unsigned long isa_enable = 1UL << 55;
	register int bcpu = boot_cpuid;

#ifdef CONFIG_SMP
	volatile unsigned long *dim0, *dim1, *dim2, *dim3;
	unsigned long mask0, mask1, mask2, mask3, dummy;

	mask &= ~isa_enable;
	mask0 = mask & cpu_irq_affinity[0];
	mask1 = mask & cpu_irq_affinity[1];
	mask2 = mask & cpu_irq_affinity[2];
	mask3 = mask & cpu_irq_affinity[3];

	if (bcpu == 0) mask0 |= isa_enable;
	else if (bcpu == 1) mask1 |= isa_enable;
	else if (bcpu == 2) mask2 |= isa_enable;
	else mask3 |= isa_enable;

	dim0 = &cchip->dim0.csr;
	dim1 = &cchip->dim1.csr;
	dim2 = &cchip->dim2.csr;
	dim3 = &cchip->dim3.csr;
	if (!cpu_possible(0)) dim0 = &dummy;
	if (!cpu_possible(1)) dim1 = &dummy;
	if (!cpu_possible(2)) dim2 = &dummy;
	if (!cpu_possible(3)) dim3 = &dummy;

	*dim0 = mask0;
	*dim1 = mask1;
	*dim2 = mask2;
	*dim3 = mask3;
	mb();
	*dim0;
	*dim1;
	*dim2;
	*dim3;
#else
	volatile unsigned long *dimB;
	if (bcpu == 0) dimB = &cchip->dim0.csr;
	else if (bcpu == 1) dimB = &cchip->dim1.csr;
	else if (bcpu == 2) dimB = &cchip->dim2.csr;
	else dimB = &cchip->dim3.csr;

	*dimB = mask | isa_enable;
	mb();
	*dimB;
#endif
}

static void
dp264_enable_irq(unsigned int irq)
{
	spin_lock(&dp264_irq_lock);
	cached_irq_mask |= 1UL << irq;
	tsunami_update_irq_hw(cached_irq_mask);
	spin_unlock(&dp264_irq_lock);
}

static void
dp264_disable_irq(unsigned int irq)
{
	spin_lock(&dp264_irq_lock);
	cached_irq_mask &= ~(1UL << irq);
	tsunami_update_irq_hw(cached_irq_mask);
	spin_unlock(&dp264_irq_lock);
}

static unsigned int
dp264_startup_irq(unsigned int irq)
{ 
	dp264_enable_irq(irq);
	return 0; /* never anything pending */
}

static void
dp264_end_irq(unsigned int irq)
{ 
	if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
		dp264_enable_irq(irq);
}

static void
clipper_enable_irq(unsigned int irq)
{
	spin_lock(&dp264_irq_lock);
	cached_irq_mask |= 1UL << (irq - 16);
	tsunami_update_irq_hw(cached_irq_mask);
	spin_unlock(&dp264_irq_lock);
}

static void
clipper_disable_irq(unsigned int irq)
{
	spin_lock(&dp264_irq_lock);
	cached_irq_mask &= ~(1UL << (irq - 16));
	tsunami_update_irq_hw(cached_irq_mask);
	spin_unlock(&dp264_irq_lock);
}

static unsigned int
clipper_startup_irq(unsigned int irq)
{ 
	clipper_enable_irq(irq);
	return 0; /* never anything pending */
}

static void
clipper_end_irq(unsigned int irq)
{ 
	if (!(irq_desc[irq].status & (IRQ_DISABLED|IRQ_INPROGRESS)))
		clipper_enable_irq(irq);
}

static void
cpu_set_irq_affinity(unsigned int irq, cpumask_t affinity)
{
	int cpu;

	for (cpu = 0; cpu < 4; cpu++) {
		unsigned long aff = cpu_irq_affinity[cpu];
		if (cpu_isset(cpu, affinity))
			aff |= 1UL << irq;
		else
			aff &= ~(1UL << irq);
		cpu_irq_affinity[cpu] = aff;
	}
}

static int
dp264_set_affinity(unsigned int irq, const struct cpumask *affinity)
{ 
	spin_lock(&dp264_irq_lock);
	cpu_set_irq_affinity(irq, *affinity);
	tsunami_update_irq_hw(cached_irq_mask);
	spin_unlock(&dp264_irq_lock);

	return 0;
}

static int
clipper_set_affinity(unsigned int irq, const struct cpumask *affinity)
{ 
	spin_lock(&dp264_irq_lock);
	cpu_set_irq_affinity(irq - 16, *affinity);
	tsunami_update_irq_hw(cached_irq_mask);
	spin_unlock(&dp264_irq_lock);

	return 0;
}

static struct hw_interrupt_type dp264_irq_type = {
	.typename	= "DP264",
	.startup	= dp264_startup_irq,
	.shutdown	= dp264_disable_irq,
	.enable		= dp264_enable_irq,
	.disable	= dp264_disable_irq,
	.ack		= dp264_disable_irq,
	.end		= dp264_end_irq,
	.set_affinity	= dp264_set_affinity,
};

static struct hw_interrupt_type clipper_irq_type = {
	.typename	= "CLIPPER",
	.startup	= clipper_startup_irq,
	.shutdown	= clipper_disable_irq,
	.enable		= clipper_enable_irq,
	.disable	= clipper_disable_irq,
	.ack		= clipper_disable_irq,
	.end		= clipper_end_irq,
	.set_affinity	= clipper_set_affinity,
};

static void
dp264_device_interrupt(unsigned long vector)
{
#if 1
	printk("dp264_device_interrupt: NOT IMPLEMENTED YET!! \n");
#else
	unsigned long pld;
	unsigned int i;

	/* Read the interrupt summary register of TSUNAMI */
	pld = TSUNAMI_cchip->dir0.csr;

	/*
	 * Now for every possible bit set, work through them and call
	 * the appropriate interrupt handler.
	 */
	while (pld) {
		i = ffz(~pld);
		pld &= pld - 1; /* clear least bit set */
		if (i == 55)
			isa_device_interrupt(vector);
		else
			handle_irq(16 + i);
#if 0
		TSUNAMI_cchip->dir0.csr = 1UL << i; mb();
		tmp = TSUNAMI_cchip->dir0.csr;
#endif
	}
#endif
}

static void 
dp264_srm_device_interrupt(unsigned long vector)
{
	int irq;

	irq = (vector - 0x800) >> 4;

	/*
	 * The SRM console reports PCI interrupts with a vector calculated by:
	 *
	 *	0x900 + (0x10 * DRIR-bit)
	 *
	 * So bit 16 shows up as IRQ 32, etc.
	 * 
	 * On DP264/BRICK/MONET, we adjust it down by 16 because at least
	 * that many of the low order bits of the DRIR are not used, and
	 * so we don't count them.
	 */
	if (irq >= 32)
		irq -= 16;

	handle_irq(irq);
}

static void 
clipper_srm_device_interrupt(unsigned long vector)
{
	int irq;

	irq = (vector - 0x800) >> 4;

/*
	 * The SRM console reports PCI interrupts with a vector calculated by:
	 *
	 *	0x900 + (0x10 * DRIR-bit)
	 *
	 * So bit 16 shows up as IRQ 32, etc.
	 * 
	 * CLIPPER uses bits 8-47 for PCI interrupts, so we do not need
	 * to scale down the vector reported, we just use it.
	 *
	 * Eg IRQ 24 is DRIR bit 8, etc, etc
	 */
	handle_irq(irq);
}

static void __init
init_tsunami_irqs(struct hw_interrupt_type * ops, int imin, int imax)
{
	long i;
	for (i = imin; i <= imax; ++i) {
		irq_desc[i].status = IRQ_DISABLED | IRQ_LEVEL;
		irq_desc[i].chip = ops;
	}
}

static void __init
dp264_init_irq(void)
{
	outb(0, DMA1_RESET_REG);
	outb(0, DMA2_RESET_REG);
	outb(DMA_MODE_CASCADE, DMA2_MODE_REG);
	outb(0, DMA2_MASK_REG);

	if (alpha_using_srm)
		alpha_mv.device_interrupt = dp264_srm_device_interrupt;

	tsunami_update_irq_hw(0);

	init_i8259a_irqs();
	init_tsunami_irqs(&dp264_irq_type, 16, 47);
}

static void __init
clipper_init_irq(void)
{
	outb(0, DMA1_RESET_REG);
	outb(0, DMA2_RESET_REG);
	outb(DMA_MODE_CASCADE, DMA2_MODE_REG);
	outb(0, DMA2_MASK_REG);

	if (alpha_using_srm)
		alpha_mv.device_interrupt = clipper_srm_device_interrupt;

	tsunami_update_irq_hw(0);

	init_i8259a_irqs();
	init_tsunami_irqs(&clipper_irq_type, 24, 63);
}


/*
 * PCI Fixup configuration.
 *
 * Summary @ TSUNAMI_CSR_DIM0:
 * Bit      Meaning
 * 0-17     Unused
 *18        Interrupt SCSI B (Adaptec 7895 builtin)
 *19        Interrupt SCSI A (Adaptec 7895 builtin)
 *20        Interrupt Line D from slot 2 PCI0
 *21        Interrupt Line C from slot 2 PCI0
 *22        Interrupt Line B from slot 2 PCI0
 *23        Interrupt Line A from slot 2 PCI0
 *24        Interrupt Line D from slot 1 PCI0
 *25        Interrupt Line C from slot 1 PCI0
 *26        Interrupt Line B from slot 1 PCI0
 *27        Interrupt Line A from slot 1 PCI0
 *28        Interrupt Line D from slot 0 PCI0
 *29        Interrupt Line C from slot 0 PCI0
 *30        Interrupt Line B from slot 0 PCI0
 *31        Interrupt Line A from slot 0 PCI0
 *
 *32        Interrupt Line D from slot 3 PCI1
 *33        Interrupt Line C from slot 3 PCI1
 *34        Interrupt Line B from slot 3 PCI1
 *35        Interrupt Line A from slot 3 PCI1
 *36        Interrupt Line D from slot 2 PCI1
 *37        Interrupt Line C from slot 2 PCI1
 *38        Interrupt Line B from slot 2 PCI1
 *39        Interrupt Line A from slot 2 PCI1
 *40        Interrupt Line D from slot 1 PCI1
 *41        Interrupt Line C from slot 1 PCI1
 *42        Interrupt Line B from slot 1 PCI1
 *43        Interrupt Line A from slot 1 PCI1
 *44        Interrupt Line D from slot 0 PCI1
 *45        Interrupt Line C from slot 0 PCI1
 *46        Interrupt Line B from slot 0 PCI1
 *47        Interrupt Line A from slot 0 PCI1
 *48-52     Unused
 *53        PCI0 NMI (from Cypress)
 *54        PCI0 SMI INT (from Cypress)
 *55        PCI0 ISA Interrupt (from Cypress)
 *56-60     Unused
 *61        PCI1 Bus Error
 *62        PCI0 Bus Error
 *63        Reserved
 *
 * IdSel	
 *   5	 Cypress Bridge I/O
 *   6	 SCSI Adaptec builtin
 *   7	 64 bit PCI option slot 0 (all busses)
 *   8	 64 bit PCI option slot 1 (all busses)
 *   9	 64 bit PCI option slot 2 (all busses)
 *  10	 64 bit PCI option slot 3 (not bus 0)
 */

static int __init
isa_irq_fixup(struct pci_dev *dev, int irq)
{
	u8 irq8;

	if (irq > 0)
		return irq;

	/* This interrupt is routed via ISA bridge, so we'll
	   just have to trust whatever value the console might
	   have assigned.  */
	pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &irq8);

	return irq8 & 0xf;
}

static int __init
dp264_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
{
	static char irq_tab[6][5] __initdata = {
		/*INT    INTA   INTB   INTC   INTD */
		{    -1,    -1,    -1,    -1,    -1}, /* IdSel 5 ISA Bridge */
		{ 16+ 3, 16+ 3, 16+ 2, 16+ 2, 16+ 2}, /* IdSel 6 SCSI builtin*/
		{ 16+15, 16+15, 16+14, 16+13, 16+12}, /* IdSel 7 slot 0 */
		{ 16+11, 16+11, 16+10, 16+ 9, 16+ 8}, /* IdSel 8 slot 1 */
		{ 16+ 7, 16+ 7, 16+ 6, 16+ 5, 16+ 4}, /* IdSel 9 slot 2 */
		{ 16+ 3, 16+ 3, 16+ 2, 16+ 1, 16+ 0}  /* IdSel 10 slot 3 */
	};
	const long min_idsel = 5, max_idsel = 10, irqs_per_slot = 5;
	struct pci_controller *hose = dev->sysdata;
	int irq = COMMON_TABLE_LOOKUP;

	if (irq > 0)
		irq += 16 * hose->index;

	return isa_irq_fixup(dev, irq);
}

static int __init
monet_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
{
	static char irq_tab[13][5] __initdata = {
		/*INT    INTA   INTB   INTC   INTD */
		{    45,    45,    45,    45,    45}, /* IdSel 3 21143 PCI1 */
		{    -1,    -1,    -1,    -1,    -1}, /* IdSel 4 unused */
		{    -1,    -1,    -1,    -1,    -1}, /* IdSel 5 unused */
		{    47,    47,    47,    47,    47}, /* IdSel 6 SCSI PCI1 */
		{    -1,    -1,    -1,    -1,    -1}, /* IdSel 7 ISA Bridge */
		{    -1,    -1,    -1,    -1,    -1}, /* IdSel 8 P2P PCI1 */
#if 1
		{    28,    28,    29,    30,    31}, /* IdSel 14 slot 4 PCI2*/
		{    24,    24,    25,    26,    27}, /* IdSel 15 slot 5 PCI2*/
#else
		{    -1,    -1,    -1,    -1,    -1}, /* IdSel 9 unused */
		{    -1,    -1,    -1,    -1,    -1}, /* IdSel 10 unused */
#endif
		{    40,    40,    41,    42,    43}, /* IdSel 11 slot 1 PCI0*/
		{    36,    36,    37,    38,    39}, /* IdSel 12 slot 2 PCI0*/
		{    32,    32,    33,    34,    35}, /* IdSel 13 slot 3 PCI0*/
		{    28,    28,    29,    30,    31}, /* IdSel 14 slot 4 PCI2*/
		{    24,    24,    25,    26,    27}  /* IdSel 15 slot 5 PCI2*/
	};
	const long min_idsel = 3, max_idsel = 15, irqs_per_slot = 5;

	return isa_irq_fixup(dev, COMMON_TABLE_LOOKUP);
}

static u8 __init
monet_swizzle(struct pci_dev *dev, u8 *pinp)
{
	struct pci_controller *hose = dev->sysdata;
	int slot, pin = *pinp;

	if (!dev->bus->parent) {
		slot = PCI_SLOT(dev->devfn);
	}
	/* Check for the built-in bridge on hose 1. */
	else if (hose->index == 1 && PCI_SLOT(dev->bus->self->devfn) == 8) {
		slot = PCI_SLOT(dev->devfn);
	} else {
		/* Must be a card-based bridge.  */
		do {
			/* Check for built-in bridge on hose 1. */
			if (hose->index == 1 &&
			    PCI_SLOT(dev->bus->self->devfn) == 8) {
				slot = PCI_SLOT(dev->devfn);
				break;
			}
			pin = pci_swizzle_interrupt_pin(dev, pin);

			/* Move up the chain of bridges.  */
			dev = dev->bus->self;
			/* Slot of the next bridge.  */
			slot = PCI_SLOT(dev->devfn);
		} while (dev->bus->self);
	}
	*pinp = pin;
	return slot;
}

static int __init
webbrick_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
{
	static char irq_tab[13][5] __initdata = {
		/*INT    INTA   INTB   INTC   INTD */
		{    -1,    -1,    -1,    -1,    -1}, /* IdSel 7 ISA Bridge */
		{    -1,    -1,    -1,    -1,    -1}, /* IdSel 8 unused */
		{    29,    29,    29,    29,    29}, /* IdSel 9 21143 #1 */
		{    -1,    -1,    -1,    -1,    -1}, /* IdSel 10 unused */
		{    30,    30,    30,    30,    30}, /* IdSel 11 21143 #2 */
		{    -1,    -1,    -1,    -1,    -1}, /* IdSel 12 unused */
		{    -1,    -1,    -1,    -1,    -1}, /* IdSel 13 unused */
		{    35,    35,    34,    33,    32}, /* IdSel 14 slot 0 */
		{    39,    39,    38,    37,    36}, /* IdSel 15 slot 1 */
		{    43,    43,    42,    41,    40}, /* IdSel 16 slot 2 */
		{    47,    47,    46,    45,    44}, /* IdSel 17 slot 3 */
	};
	const long min_idsel = 7, max_idsel = 17, irqs_per_slot = 5;

	return isa_irq_fixup(dev, COMMON_TABLE_LOOKUP);
}

static int __init
clipper_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
{
	static char irq_tab[7][5] __initdata = {
		/*INT    INTA   INTB   INTC   INTD */
		{ 16+ 8, 16+ 8, 16+ 9, 16+10, 16+11}, /* IdSel 1 slot 1 */
		{ 16+12, 16+12, 16+13, 16+14, 16+15}, /* IdSel 2 slot 2 */
		{ 16+16, 16+16, 16+17, 16+18, 16+19}, /* IdSel 3 slot 3 */
		{ 16+20, 16+20, 16+21, 16+22, 16+23}, /* IdSel 4 slot 4 */
		{ 16+24, 16+24, 16+25, 16+26, 16+27}, /* IdSel 5 slot 5 */
		{ 16+28, 16+28, 16+29, 16+30, 16+31}, /* IdSel 6 slot 6 */
		{    -1,    -1,    -1,    -1,    -1}  /* IdSel 7 ISA Bridge */
	};
	const long min_idsel = 1, max_idsel = 7, irqs_per_slot = 5;
	struct pci_controller *hose = dev->sysdata;
	int irq = COMMON_TABLE_LOOKUP;

	if (irq > 0)
		irq += 16 * hose->index;

	return isa_irq_fixup(dev, irq);
}

static void __init
dp264_init_pci(void)
{
	common_init_pci();
	SMC669_Init(0);
	locate_and_init_vga(NULL);
}

static void __init
monet_init_pci(void)
{
	common_init_pci();
	SMC669_Init(1);
	es1888_init();
	locate_and_init_vga(NULL);
}

static void __init
clipper_init_pci(void)
{
	common_init_pci();
	locate_and_init_vga(NULL);
}

static void __init
webbrick_init_arch(void)
{
	tsunami_init_arch();

	/* Tsunami caches 4 PTEs at a time; DS10 has only 1 hose. */
	hose_head->sg_isa->align_entry = 4;
	hose_head->sg_pci->align_entry = 4;
}


/*
 * The System Vectors
 */

struct alpha_machine_vector dp264_mv __initmv = {
	.vector_name		= "DP264",
	DO_EV6_MMU,
	DO_DEFAULT_RTC,
	DO_TSUNAMI_IO,
	.machine_check		= tsunami_machine_check,
	.max_isa_dma_address	= ALPHA_MAX_ISA_DMA_ADDRESS,
	.min_io_address		= DEFAULT_IO_BASE,
	.min_mem_address	= DEFAULT_MEM_BASE,
	.pci_dac_offset		= TSUNAMI_DAC_OFFSET,

	.nr_irqs		= 64,
	.device_interrupt	= dp264_device_interrupt,

	.init_arch		= tsunami_init_arch,
	.init_irq		= dp264_init_irq,
	.init_rtc		= common_init_rtc,
	.init_pci		= dp264_init_pci,
	.kill_arch		= tsunami_kill_arch,
	.pci_map_irq		= dp264_map_irq,
	.pci_swizzle		= common_swizzle,
};
ALIAS_MV(dp264)

struct alpha_machine_vector monet_mv __initmv = {
	.vector_name		= "Monet",
	DO_EV6_MMU,
	DO_DEFAULT_RTC,
	DO_TSUNAMI_IO,
	.machine_check		= tsunami_machine_check,
	.max_isa_dma_address	= ALPHA_MAX_ISA_DMA_ADDRESS,
	.min_io_address		= DEFAULT_IO_BASE,
	.min_mem_address	= DEFAULT_MEM_BASE,
	.pci_dac_offset		= TSUNAMI_DAC_OFFSET,

	.nr_irqs		= 64,
	.device_interrupt	= dp264_device_interrupt,

	.init_arch		= tsunami_init_arch,
	.init_irq		= dp264_init_irq,
	.init_rtc		= common_init_rtc,
	.init_pci		= monet_init_pci,
	.kill_arch		= tsunami_kill_arch,
	.pci_map_irq		= monet_map_irq,
	.pci_swizzle		= monet_swizzle,
};

struct alpha_machine_vector webbrick_mv __initmv = {
	.vector_name		= "Webbrick",
	DO_EV6_MMU,
	DO_DEFAULT_RTC,
	DO_TSUNAMI_IO,
	.machine_check		= tsunami_machine_check,
	.max_isa_dma_address	= ALPHA_MAX_ISA_DMA_ADDRESS,
	.min_io_address		= DEFAULT_IO_BASE,
	.min_mem_address	= DEFAULT_MEM_BASE,
	.pci_dac_offset		= TSUNAMI_DAC_OFFSET,

	.nr_irqs		= 64,
	.device_interrupt	= dp264_device_interrupt,

	.init_arch		= webbrick_init_arch,
	.init_irq		= dp264_init_irq,
	.init_rtc		= common_init_rtc,
	.init_pci		= common_init_pci,
	.kill_arch		= tsunami_kill_arch,
	.pci_map_irq		= webbrick_map_irq,
	.pci_swizzle		= common_swizzle,
};

struct alpha_machine_vector clipper_mv __initmv = {
	.vector_name		= "Clipper",
	DO_EV6_MMU,
	DO_DEFAULT_RTC,
	DO_TSUNAMI_IO,
	.machine_check		= tsunami_machine_check,
	.max_isa_dma_address	= ALPHA_MAX_ISA_DMA_ADDRESS,
	.min_io_address		= DEFAULT_IO_BASE,
	.min_mem_address	= DEFAULT_MEM_BASE,
	.pci_dac_offset		= TSUNAMI_DAC_OFFSET,

	.nr_irqs		= 64,
	.device_interrupt	= dp264_device_interrupt,

	.init_arch		= tsunami_init_arch,
	.init_irq		= clipper_init_irq,
	.init_rtc		= common_init_rtc,
	.init_pci		= clipper_init_pci,
	.kill_arch		= tsunami_kill_arch,
	.pci_map_irq		= clipper_map_irq,
	.pci_swizzle		= common_swizzle,
};

/* Sharks strongly resemble Clipper, at least as far
 * as interrupt routing, etc, so we're using the
 * same functions as Clipper does
 */

struct alpha_machine_vector shark_mv __initmv = {
	.vector_name		= "Shark",
	DO_EV6_MMU,
	DO_DEFAULT_RTC,
	DO_TSUNAMI_IO,
	.machine_check		= tsunami_machine_check,
	.max_isa_dma_address	= ALPHA_MAX_ISA_DMA_ADDRESS,
	.min_io_address		= DEFAULT_IO_BASE,
	.min_mem_address	= DEFAULT_MEM_BASE,
	.pci_dac_offset		= TSUNAMI_DAC_OFFSET,

	.nr_irqs		= 64,
	.device_interrupt	= dp264_device_interrupt,

	.init_arch		= tsunami_init_arch,
	.init_irq		= clipper_init_irq,
	.init_rtc		= common_init_rtc,
	.init_pci		= common_init_pci,
	.kill_arch		= tsunami_kill_arch,
	.pci_map_irq		= clipper_map_irq,
	.pci_swizzle		= common_swizzle,
};

/* No alpha_mv alias for webbrick/monet/clipper, since we compile them
   in unconditionally with DP264; setup_arch knows how to cope.  */
Commit	Line	Data
1da177e4 LT	1	/*
	2	* linux/arch/alpha/kernel/sys_dp264.c
	3	*
	4	* Copyright (C) 1995 David A Rusling
	5	* Copyright (C) 1996, 1999 Jay A Estabrook
	6	* Copyright (C) 1998, 1999 Richard Henderson
	7	*
	8	* Modified by Christopher C. Chimelis, 2001 to
	9	* add support for the addition of Shark to the
	10	* Tsunami family.
	11	*
	12	* Code supporting the DP264 (EV6+TSUNAMI).
	13	*/
	14
1da177e4 LT	15	#include <linux/kernel.h>
	16	#include <linux/types.h>
	17	#include <linux/mm.h>
	18	#include <linux/sched.h>
	19	#include <linux/pci.h>
	20	#include <linux/init.h>
	21	#include <linux/bitops.h>
	22
	23	#include <asm/ptrace.h>
	24	#include <asm/system.h>
	25	#include <asm/dma.h>
	26	#include <asm/irq.h>
	27	#include <asm/mmu_context.h>
	28	#include <asm/io.h>
	29	#include <asm/pgtable.h>
	30	#include <asm/core_tsunami.h>
	31	#include <asm/hwrpb.h>
	32	#include <asm/tlbflush.h>
	33
	34	#include "proto.h"
	35	#include "irq_impl.h"
	36	#include "pci_impl.h"
	37	#include "machvec_impl.h"
	38
	39
	40	/* Note mask bit is true for ENABLED irqs. */
	41	static unsigned long cached_irq_mask;
	42	/* dp264 boards handle at max four CPUs */
	43	static unsigned long cpu_irq_affinity[4] = { 0UL, 0UL, 0UL, 0UL };
	44
	45	DEFINE_SPINLOCK(dp264_irq_lock);
	46
	47	static void
	48	tsunami_update_irq_hw(unsigned long mask)
	49	{
	50	register tsunami_cchip *cchip = TSUNAMI_cchip;
	51	unsigned long isa_enable = 1UL << 55;
	52	register int bcpu = boot_cpuid;
	53
	54	#ifdef CONFIG_SMP
	55	volatile unsigned long dim0, dim1, dim2, dim3;
	56	unsigned long mask0, mask1, mask2, mask3, dummy;
	57
	58	mask &= ~isa_enable;
	59	mask0 = mask & cpu_irq_affinity[0];
	60	mask1 = mask & cpu_irq_affinity[1];
	61	mask2 = mask & cpu_irq_affinity[2];
	62	mask3 = mask & cpu_irq_affinity[3];
	63
	64	if (bcpu == 0) mask0 \|= isa_enable;
	65	else if (bcpu == 1) mask1 \|= isa_enable;
	66	else if (bcpu == 2) mask2 \|= isa_enable;
	67	else mask3 \|= isa_enable;
	68
	69	dim0 = &cchip->dim0.csr;
	70	dim1 = &cchip->dim1.csr;
	71	dim2 = &cchip->dim2.csr;
	72	dim3 = &cchip->dim3.csr;
	73	if (!cpu_possible(0)) dim0 = &dummy;
	74	if (!cpu_possible(1)) dim1 = &dummy;
	75	if (!cpu_possible(2)) dim2 = &dummy;
	76	if (!cpu_possible(3)) dim3 = &dummy;
	77
	78	*dim0 = mask0;
79	*dim1 = mask1;
80	*dim2 = mask2;
81	*dim3 = mask3;
82	mb();
83	*dim0;
84	*dim1;
85	*dim2;
86	*dim3;
87	#else
88	volatile unsigned long *dimB;
89	if (bcpu == 0) dimB = &cchip->dim0.csr;
90	else if (bcpu == 1) dimB = &cchip->dim1.csr;
91	else if (bcpu == 2) dimB = &cchip->dim2.csr;
92	else dimB = &cchip->dim3.csr;
93
94	*dimB = mask \| isa_enable;
95	mb();
96	*dimB;
97	#endif
98	}
99
100	static void
101	dp264_enable_irq(unsigned int irq)
102	{
103	spin_lock(&dp264_irq_lock);
104	cached_irq_mask \|= 1UL << irq;
105	tsunami_update_irq_hw(cached_irq_mask);
106	spin_unlock(&dp264_irq_lock);
107	}
108
109	static void
110	dp264_disable_irq(unsigned int irq)
111	{
112	spin_lock(&dp264_irq_lock);
113	cached_irq_mask &= ~(1UL << irq);
114	tsunami_update_irq_hw(cached_irq_mask);
115	spin_unlock(&dp264_irq_lock);
116	}
117
118	static unsigned int
119	dp264_startup_irq(unsigned int irq)
120	{
121	dp264_enable_irq(irq);
122	return 0; /* never anything pending */
123	}
124
125	static void
126	dp264_end_irq(unsigned int irq)
127	{
128	if (!(irq_desc[irq].status & (IRQ_DISABLED\|IRQ_INPROGRESS)))
129	dp264_enable_irq(irq);
130	}
131
132	static void
133	clipper_enable_irq(unsigned int irq)
134	{
135	spin_lock(&dp264_irq_lock);
136	cached_irq_mask \|= 1UL << (irq - 16);
137	tsunami_update_irq_hw(cached_irq_mask);
138	spin_unlock(&dp264_irq_lock);
139	}
140
141	static void
142	clipper_disable_irq(unsigned int irq)
143	{
144	spin_lock(&dp264_irq_lock);
145	cached_irq_mask &= ~(1UL << (irq - 16));
146	tsunami_update_irq_hw(cached_irq_mask);
147	spin_unlock(&dp264_irq_lock);
148	}
149
150	static unsigned int
151	clipper_startup_irq(unsigned int irq)
152	{
153	clipper_enable_irq(irq);
154	return 0; /* never anything pending */
155	}
156
157	static void
158	clipper_end_irq(unsigned int irq)
159	{
160	if (!(irq_desc[irq].status & (IRQ_DISABLED\|IRQ_INPROGRESS)))
161	clipper_enable_irq(irq);
162	}
163
164	static void
165	cpu_set_irq_affinity(unsigned int irq, cpumask_t affinity)
166	{
167	int cpu;
168
169	for (cpu = 0; cpu < 4; cpu++) {
170	unsigned long aff = cpu_irq_affinity[cpu];
171	if (cpu_isset(cpu, affinity))
172	aff \|= 1UL << irq;
173	else
174	aff &= ~(1UL << irq);
175	cpu_irq_affinity[cpu] = aff;
176	}
177	}
178
d5dedd45	179	static int
0de26520	180	dp264_set_affinity(unsigned int irq, const struct cpumask *affinity)
1da177e4 LT	181	{
1da177e4 LT	182	spin_lock(&dp264_irq_lock);
0de26520	183	cpu_set_irq_affinity(irq, *affinity);
1da177e4 LT	184	tsunami_update_irq_hw(cached_irq_mask);
1da177e4 LT	185	spin_unlock(&dp264_irq_lock);
d5dedd45 YL	186
d5dedd45 YL	187	return 0;
1da177e4 LT	188	}
1da177e4 LT	189
d5dedd45	190	static int
0de26520	191	clipper_set_affinity(unsigned int irq, const struct cpumask *affinity)
1da177e4 LT	192	{
1da177e4 LT	193	spin_lock(&dp264_irq_lock);
0de26520	194	cpu_set_irq_affinity(irq - 16, *affinity);
1da177e4 LT	195	tsunami_update_irq_hw(cached_irq_mask);
1da177e4 LT	196	spin_unlock(&dp264_irq_lock);
d5dedd45 YL	197
d5dedd45 YL	198	return 0;
1da177e4 LT	199	}
	200
	201	static struct hw_interrupt_type dp264_irq_type = {
	202	.typename = "DP264",
	203	.startup = dp264_startup_irq,
	204	.shutdown = dp264_disable_irq,
	205	.enable = dp264_enable_irq,
	206	.disable = dp264_disable_irq,
	207	.ack = dp264_disable_irq,
	208	.end = dp264_end_irq,
	209	.set_affinity = dp264_set_affinity,
	210	};
	211
	212	static struct hw_interrupt_type clipper_irq_type = {
	213	.typename = "CLIPPER",
	214	.startup = clipper_startup_irq,
	215	.shutdown = clipper_disable_irq,
	216	.enable = clipper_enable_irq,
	217	.disable = clipper_disable_irq,
	218	.ack = clipper_disable_irq,
	219	.end = clipper_end_irq,
	220	.set_affinity = clipper_set_affinity,
	221	};
	222
	223	static void
7ca56053	224	dp264_device_interrupt(unsigned long vector)
1da177e4 LT	225	{
	226	#if 1
	227	printk("dp264_device_interrupt: NOT IMPLEMENTED YET!! \n");
	228	#else
	229	unsigned long pld;
	230	unsigned int i;
	231
	232	/* Read the interrupt summary register of TSUNAMI */
	233	pld = TSUNAMI_cchip->dir0.csr;
	234
	235	/*
	236	* Now for every possible bit set, work through them and call
	237	* the appropriate interrupt handler.
	238	*/
	239	while (pld) {
	240	i = ffz(~pld);
	241	pld &= pld - 1; /* clear least bit set */
	242	if (i == 55)
7ca56053	243	isa_device_interrupt(vector);
1da177e4	244	else
3dbb8c62	245	handle_irq(16 + i);
1da177e4 LT	246	#if 0
	247	TSUNAMI_cchip->dir0.csr = 1UL << i; mb();
	248	tmp = TSUNAMI_cchip->dir0.csr;
	249	#endif
	250	}
	251	#endif
	252	}
	253
	254	static void
7ca56053	255	dp264_srm_device_interrupt(unsigned long vector)
1da177e4 LT	256	{
	257	int irq;
	258
	259	irq = (vector - 0x800) >> 4;
	260
	261	/*
	262	* The SRM console reports PCI interrupts with a vector calculated by:
	263	*
	264	* 0x900 + (0x10 * DRIR-bit)
	265	*
	266	* So bit 16 shows up as IRQ 32, etc.
	267	*
	268	* On DP264/BRICK/MONET, we adjust it down by 16 because at least
	269	* that many of the low order bits of the DRIR are not used, and
	270	* so we don't count them.
	271	*/
	272	if (irq >= 32)
	273	irq -= 16;
	274
3dbb8c62	275	handle_irq(irq);
1da177e4 LT	276	}
	277
	278	static void
7ca56053	279	clipper_srm_device_interrupt(unsigned long vector)
1da177e4 LT	280	{
	281	int irq;
	282
	283	irq = (vector - 0x800) >> 4;
	284
	285	/*
	286	* The SRM console reports PCI interrupts with a vector calculated by:
	287	*
	288	* 0x900 + (0x10 * DRIR-bit)
	289	*
	290	* So bit 16 shows up as IRQ 32, etc.
	291	*
	292	* CLIPPER uses bits 8-47 for PCI interrupts, so we do not need
	293	* to scale down the vector reported, we just use it.
	294	*
	295	* Eg IRQ 24 is DRIR bit 8, etc, etc
	296	*/
3dbb8c62	297	handle_irq(irq);
1da177e4 LT	298	}
	299
	300	static void __init
	301	init_tsunami_irqs(struct hw_interrupt_type * ops, int imin, int imax)
	302	{
	303	long i;
	304	for (i = imin; i <= imax; ++i) {
	305	irq_desc[i].status = IRQ_DISABLED \| IRQ_LEVEL;
d1bef4ed	306	irq_desc[i].chip = ops;
1da177e4 LT	307	}
	308	}
	309
	310	static void __init
	311	dp264_init_irq(void)
	312	{
	313	outb(0, DMA1_RESET_REG);
	314	outb(0, DMA2_RESET_REG);
	315	outb(DMA_MODE_CASCADE, DMA2_MODE_REG);
	316	outb(0, DMA2_MASK_REG);
	317
	318	if (alpha_using_srm)
	319	alpha_mv.device_interrupt = dp264_srm_device_interrupt;
	320
	321	tsunami_update_irq_hw(0);
	322
	323	init_i8259a_irqs();
	324	init_tsunami_irqs(&dp264_irq_type, 16, 47);
	325	}
	326
	327	static void __init
	328	clipper_init_irq(void)
	329	{
	330	outb(0, DMA1_RESET_REG);
	331	outb(0, DMA2_RESET_REG);
	332	outb(DMA_MODE_CASCADE, DMA2_MODE_REG);
	333	outb(0, DMA2_MASK_REG);
	334
	335	if (alpha_using_srm)
	336	alpha_mv.device_interrupt = clipper_srm_device_interrupt;
	337
	338	tsunami_update_irq_hw(0);
	339
	340	init_i8259a_irqs();
	341	init_tsunami_irqs(&clipper_irq_type, 24, 63);
	342	}
	343
	344
	345	/*
	346	* PCI Fixup configuration.
	347	*
	348	* Summary @ TSUNAMI_CSR_DIM0:
	349	* Bit Meaning
	350	* 0-17 Unused
	351	*18 Interrupt SCSI B (Adaptec 7895 builtin)
	352	*19 Interrupt SCSI A (Adaptec 7895 builtin)
	353	*20 Interrupt Line D from slot 2 PCI0
	354	*21 Interrupt Line C from slot 2 PCI0
	355	*22 Interrupt Line B from slot 2 PCI0
	356	*23 Interrupt Line A from slot 2 PCI0
	357	*24 Interrupt Line D from slot 1 PCI0
	358	*25 Interrupt Line C from slot 1 PCI0
	359	*26 Interrupt Line B from slot 1 PCI0
	360	*27 Interrupt Line A from slot 1 PCI0
	361	*28 Interrupt Line D from slot 0 PCI0
	362	*29 Interrupt Line C from slot 0 PCI0
	363	*30 Interrupt Line B from slot 0 PCI0
	364	*31 Interrupt Line A from slot 0 PCI0
	365	*
	366	*32 Interrupt Line D from slot 3 PCI1
	367	*33 Interrupt Line C from slot 3 PCI1
	368	*34 Interrupt Line B from slot 3 PCI1
	369	*35 Interrupt Line A from slot 3 PCI1
	370	*36 Interrupt Line D from slot 2 PCI1
371	*37 Interrupt Line C from slot 2 PCI1
372	*38 Interrupt Line B from slot 2 PCI1
373	*39 Interrupt Line A from slot 2 PCI1
374	*40 Interrupt Line D from slot 1 PCI1
375	*41 Interrupt Line C from slot 1 PCI1
376	*42 Interrupt Line B from slot 1 PCI1
377	*43 Interrupt Line A from slot 1 PCI1
378	*44 Interrupt Line D from slot 0 PCI1
379	*45 Interrupt Line C from slot 0 PCI1
380	*46 Interrupt Line B from slot 0 PCI1
381	*47 Interrupt Line A from slot 0 PCI1
382	*48-52 Unused
383	*53 PCI0 NMI (from Cypress)
384	*54 PCI0 SMI INT (from Cypress)
385	*55 PCI0 ISA Interrupt (from Cypress)
386	*56-60 Unused
387	*61 PCI1 Bus Error
388	*62 PCI0 Bus Error
389	*63 Reserved
390	*
391	* IdSel
392	* 5 Cypress Bridge I/O
393	* 6 SCSI Adaptec builtin
394	* 7 64 bit PCI option slot 0 (all busses)
395	* 8 64 bit PCI option slot 1 (all busses)
396	* 9 64 bit PCI option slot 2 (all busses)
397	* 10 64 bit PCI option slot 3 (not bus 0)
398	*/
399
997a51ae IK	400	static int __init
	401	isa_irq_fixup(struct pci_dev *dev, int irq)
	402	{
	403	u8 irq8;
	404
	405	if (irq > 0)
	406	return irq;
	407
	408	/* This interrupt is routed via ISA bridge, so we'll
	409	just have to trust whatever value the console might
	410	have assigned. */
	411	pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &irq8);
	412
	413	return irq8 & 0xf;
	414	}
	415
1da177e4 LT	416	static int __init
	417	dp264_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
	418	{
	419	static char irq_tab[6][5] __initdata = {
	420	/INT INTA INTB INTC INTD /
	421	{ -1, -1, -1, -1, -1}, /* IdSel 5 ISA Bridge */
	422	{ 16+ 3, 16+ 3, 16+ 2, 16+ 2, 16+ 2}, /* IdSel 6 SCSI builtin*/
	423	{ 16+15, 16+15, 16+14, 16+13, 16+12}, /* IdSel 7 slot 0 */
	424	{ 16+11, 16+11, 16+10, 16+ 9, 16+ 8}, /* IdSel 8 slot 1 */
	425	{ 16+ 7, 16+ 7, 16+ 6, 16+ 5, 16+ 4}, /* IdSel 9 slot 2 */
	426	{ 16+ 3, 16+ 3, 16+ 2, 16+ 1, 16+ 0} /* IdSel 10 slot 3 */
	427	};
	428	const long min_idsel = 5, max_idsel = 10, irqs_per_slot = 5;
1da177e4 LT	429	struct pci_controller *hose = dev->sysdata;
	430	int irq = COMMON_TABLE_LOOKUP;
	431
997a51ae	432	if (irq > 0)
1da177e4	433	irq += 16 * hose->index;
1da177e4	434
997a51ae	435	return isa_irq_fixup(dev, irq);
1da177e4 LT	436	}
	437
	438	static int __init
	439	monet_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
	440	{
	441	static char irq_tab[13][5] __initdata = {
	442	/INT INTA INTB INTC INTD /
	443	{ 45, 45, 45, 45, 45}, /* IdSel 3 21143 PCI1 */
	444	{ -1, -1, -1, -1, -1}, /* IdSel 4 unused */
	445	{ -1, -1, -1, -1, -1}, /* IdSel 5 unused */
	446	{ 47, 47, 47, 47, 47}, /* IdSel 6 SCSI PCI1 */
	447	{ -1, -1, -1, -1, -1}, /* IdSel 7 ISA Bridge */
	448	{ -1, -1, -1, -1, -1}, /* IdSel 8 P2P PCI1 */
	449	#if 1
	450	{ 28, 28, 29, 30, 31}, /* IdSel 14 slot 4 PCI2*/
	451	{ 24, 24, 25, 26, 27}, /* IdSel 15 slot 5 PCI2*/
	452	#else
	453	{ -1, -1, -1, -1, -1}, /* IdSel 9 unused */
	454	{ -1, -1, -1, -1, -1}, /* IdSel 10 unused */
	455	#endif
	456	{ 40, 40, 41, 42, 43}, /* IdSel 11 slot 1 PCI0*/
	457	{ 36, 36, 37, 38, 39}, /* IdSel 12 slot 2 PCI0*/
	458	{ 32, 32, 33, 34, 35}, /* IdSel 13 slot 3 PCI0*/
	459	{ 28, 28, 29, 30, 31}, /* IdSel 14 slot 4 PCI2*/
	460	{ 24, 24, 25, 26, 27} /* IdSel 15 slot 5 PCI2*/
	461	};
	462	const long min_idsel = 3, max_idsel = 15, irqs_per_slot = 5;
997a51ae IK	463
997a51ae IK	464	return isa_irq_fixup(dev, COMMON_TABLE_LOOKUP);
1da177e4 LT	465	}
	466
	467	static u8 __init
	468	monet_swizzle(struct pci_dev dev, u8 pinp)
	469	{
	470	struct pci_controller *hose = dev->sysdata;
	471	int slot, pin = *pinp;
	472
	473	if (!dev->bus->parent) {
	474	slot = PCI_SLOT(dev->devfn);
	475	}
	476	/* Check for the built-in bridge on hose 1. */
	477	else if (hose->index == 1 && PCI_SLOT(dev->bus->self->devfn) == 8) {
	478	slot = PCI_SLOT(dev->devfn);
	479	} else {
	480	/* Must be a card-based bridge. */
	481	do {
	482	/* Check for built-in bridge on hose 1. */
	483	if (hose->index == 1 &&
	484	PCI_SLOT(dev->bus->self->devfn) == 8) {
	485	slot = PCI_SLOT(dev->devfn);
	486	break;
	487	}
1be9baa0	488	pin = pci_swizzle_interrupt_pin(dev, pin);
1da177e4 LT	489
	490	/* Move up the chain of bridges. */
	491	dev = dev->bus->self;
	492	/* Slot of the next bridge. */
	493	slot = PCI_SLOT(dev->devfn);
	494	} while (dev->bus->self);
	495	}
	496	*pinp = pin;
	497	return slot;
	498	}
	499
	500	static int __init
	501	webbrick_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
	502	{
	503	static char irq_tab[13][5] __initdata = {
	504	/INT INTA INTB INTC INTD /
	505	{ -1, -1, -1, -1, -1}, /* IdSel 7 ISA Bridge */
	506	{ -1, -1, -1, -1, -1}, /* IdSel 8 unused */
	507	{ 29, 29, 29, 29, 29}, /* IdSel 9 21143 #1 */
	508	{ -1, -1, -1, -1, -1}, /* IdSel 10 unused */
	509	{ 30, 30, 30, 30, 30}, /* IdSel 11 21143 #2 */
	510	{ -1, -1, -1, -1, -1}, /* IdSel 12 unused */
	511	{ -1, -1, -1, -1, -1}, /* IdSel 13 unused */
	512	{ 35, 35, 34, 33, 32}, /* IdSel 14 slot 0 */
	513	{ 39, 39, 38, 37, 36}, /* IdSel 15 slot 1 */
	514	{ 43, 43, 42, 41, 40}, /* IdSel 16 slot 2 */
	515	{ 47, 47, 46, 45, 44}, /* IdSel 17 slot 3 */
	516	};
	517	const long min_idsel = 7, max_idsel = 17, irqs_per_slot = 5;
997a51ae IK	518
997a51ae IK	519	return isa_irq_fixup(dev, COMMON_TABLE_LOOKUP);
1da177e4 LT	520	}
	521
	522	static int __init
	523	clipper_map_irq(struct pci_dev *dev, u8 slot, u8 pin)
	524	{
	525	static char irq_tab[7][5] __initdata = {
	526	/INT INTA INTB INTC INTD /
	527	{ 16+ 8, 16+ 8, 16+ 9, 16+10, 16+11}, /* IdSel 1 slot 1 */
	528	{ 16+12, 16+12, 16+13, 16+14, 16+15}, /* IdSel 2 slot 2 */
	529	{ 16+16, 16+16, 16+17, 16+18, 16+19}, /* IdSel 3 slot 3 */
	530	{ 16+20, 16+20, 16+21, 16+22, 16+23}, /* IdSel 4 slot 4 */
	531	{ 16+24, 16+24, 16+25, 16+26, 16+27}, /* IdSel 5 slot 5 */
	532	{ 16+28, 16+28, 16+29, 16+30, 16+31}, /* IdSel 6 slot 6 */
	533	{ -1, -1, -1, -1, -1} /* IdSel 7 ISA Bridge */
	534	};
	535	const long min_idsel = 1, max_idsel = 7, irqs_per_slot = 5;
1da177e4 LT	536	struct pci_controller *hose = dev->sysdata;
	537	int irq = COMMON_TABLE_LOOKUP;
	538
	539	if (irq > 0)
	540	irq += 16 * hose->index;
	541
997a51ae	542	return isa_irq_fixup(dev, irq);
1da177e4 LT	543	}
	544
	545	static void __init
	546	dp264_init_pci(void)
	547	{
	548	common_init_pci();
	549	SMC669_Init(0);
025a2215	550	locate_and_init_vga(NULL);
1da177e4 LT	551	}
	552
	553	static void __init
	554	monet_init_pci(void)
	555	{
	556	common_init_pci();
	557	SMC669_Init(1);
	558	es1888_init();
025a2215 JE	559	locate_and_init_vga(NULL);
	560	}
	561
	562	static void __init
	563	clipper_init_pci(void)
	564	{
	565	common_init_pci();
	566	locate_and_init_vga(NULL);
1da177e4 LT	567	}
	568
	569	static void __init
	570	webbrick_init_arch(void)
	571	{
	572	tsunami_init_arch();
	573
	574	/* Tsunami caches 4 PTEs at a time; DS10 has only 1 hose. */
	575	hose_head->sg_isa->align_entry = 4;
	576	hose_head->sg_pci->align_entry = 4;
	577	}
	578
	579
	580	/*
	581	* The System Vectors
	582	*/
	583
	584	struct alpha_machine_vector dp264_mv __initmv = {
	585	.vector_name = "DP264",
	586	DO_EV6_MMU,
	587	DO_DEFAULT_RTC,
	588	DO_TSUNAMI_IO,
	589	.machine_check = tsunami_machine_check,
	590	.max_isa_dma_address = ALPHA_MAX_ISA_DMA_ADDRESS,
	591	.min_io_address = DEFAULT_IO_BASE,
	592	.min_mem_address = DEFAULT_MEM_BASE,
	593	.pci_dac_offset = TSUNAMI_DAC_OFFSET,
	594
	595	.nr_irqs = 64,
	596	.device_interrupt = dp264_device_interrupt,
	597
	598	.init_arch = tsunami_init_arch,
	599	.init_irq = dp264_init_irq,
	600	.init_rtc = common_init_rtc,
	601	.init_pci = dp264_init_pci,
	602	.kill_arch = tsunami_kill_arch,
	603	.pci_map_irq = dp264_map_irq,
	604	.pci_swizzle = common_swizzle,
	605	};
	606	ALIAS_MV(dp264)
	607
	608	struct alpha_machine_vector monet_mv __initmv = {
	609	.vector_name = "Monet",
	610	DO_EV6_MMU,
	611	DO_DEFAULT_RTC,
	612	DO_TSUNAMI_IO,
	613	.machine_check = tsunami_machine_check,
	614	.max_isa_dma_address = ALPHA_MAX_ISA_DMA_ADDRESS,
	615	.min_io_address = DEFAULT_IO_BASE,
	616	.min_mem_address = DEFAULT_MEM_BASE,
	617	.pci_dac_offset = TSUNAMI_DAC_OFFSET,
	618
	619	.nr_irqs = 64,
	620	.device_interrupt = dp264_device_interrupt,
	621
	622	.init_arch = tsunami_init_arch,
	623	.init_irq = dp264_init_irq,
	624	.init_rtc = common_init_rtc,
	625	.init_pci = monet_init_pci,
	626	.kill_arch = tsunami_kill_arch,
	627	.pci_map_irq = monet_map_irq,
	628	.pci_swizzle = monet_swizzle,
	629	};
	630
631	struct alpha_machine_vector webbrick_mv __initmv = {
632	.vector_name = "Webbrick",
633	DO_EV6_MMU,
634	DO_DEFAULT_RTC,
635	DO_TSUNAMI_IO,
636	.machine_check = tsunami_machine_check,
637	.max_isa_dma_address = ALPHA_MAX_ISA_DMA_ADDRESS,
638	.min_io_address = DEFAULT_IO_BASE,
639	.min_mem_address = DEFAULT_MEM_BASE,
640	.pci_dac_offset = TSUNAMI_DAC_OFFSET,
641
642	.nr_irqs = 64,
643	.device_interrupt = dp264_device_interrupt,
644
645	.init_arch = webbrick_init_arch,
646	.init_irq = dp264_init_irq,
647	.init_rtc = common_init_rtc,
648	.init_pci = common_init_pci,
649	.kill_arch = tsunami_kill_arch,
650	.pci_map_irq = webbrick_map_irq,
651	.pci_swizzle = common_swizzle,
652	};
653
654	struct alpha_machine_vector clipper_mv __initmv = {
655	.vector_name = "Clipper",
656	DO_EV6_MMU,
657	DO_DEFAULT_RTC,
658	DO_TSUNAMI_IO,
659	.machine_check = tsunami_machine_check,
660	.max_isa_dma_address = ALPHA_MAX_ISA_DMA_ADDRESS,
661	.min_io_address = DEFAULT_IO_BASE,
662	.min_mem_address = DEFAULT_MEM_BASE,
663	.pci_dac_offset = TSUNAMI_DAC_OFFSET,
664
665	.nr_irqs = 64,
666	.device_interrupt = dp264_device_interrupt,
667
668	.init_arch = tsunami_init_arch,
669	.init_irq = clipper_init_irq,
670	.init_rtc = common_init_rtc,
025a2215	671	.init_pci = clipper_init_pci,
1da177e4 LT	672	.kill_arch = tsunami_kill_arch,
	673	.pci_map_irq = clipper_map_irq,
	674	.pci_swizzle = common_swizzle,
	675	};
	676
	677	/* Sharks strongly resemble Clipper, at least as far
	678	* as interrupt routing, etc, so we're using the
	679	* same functions as Clipper does
	680	*/
	681
	682	struct alpha_machine_vector shark_mv __initmv = {
	683	.vector_name = "Shark",
	684	DO_EV6_MMU,
	685	DO_DEFAULT_RTC,
	686	DO_TSUNAMI_IO,
	687	.machine_check = tsunami_machine_check,
	688	.max_isa_dma_address = ALPHA_MAX_ISA_DMA_ADDRESS,
	689	.min_io_address = DEFAULT_IO_BASE,
	690	.min_mem_address = DEFAULT_MEM_BASE,
	691	.pci_dac_offset = TSUNAMI_DAC_OFFSET,
	692
	693	.nr_irqs = 64,
	694	.device_interrupt = dp264_device_interrupt,
	695
	696	.init_arch = tsunami_init_arch,
	697	.init_irq = clipper_init_irq,
	698	.init_rtc = common_init_rtc,
	699	.init_pci = common_init_pci,
	700	.kill_arch = tsunami_kill_arch,
	701	.pci_map_irq = clipper_map_irq,
	702	.pci_swizzle = common_swizzle,
	703	};
	704
	705	/* No alpha_mv alias for webbrick/monet/clipper, since we compile them
	706	in unconditionally with DP264; setup_arch knows how to cope. */