690 lines
		
	
	
	
		
			18 KiB
			
		
	
	
	
		
			C
		
	
	
	
	
	
		
		
			
		
	
	
			690 lines
		
	
	
	
		
			18 KiB
			
		
	
	
	
		
			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/config.h>
 | ||
|  | #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 void | ||
|  | dp264_set_affinity(unsigned int irq, cpumask_t affinity) | ||
|  | {  | ||
|  | 	spin_lock(&dp264_irq_lock); | ||
|  | 	cpu_set_irq_affinity(irq, affinity); | ||
|  | 	tsunami_update_irq_hw(cached_irq_mask); | ||
|  | 	spin_unlock(&dp264_irq_lock); | ||
|  | } | ||
|  | 
 | ||
|  | static void | ||
|  | clipper_set_affinity(unsigned int irq, cpumask_t 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); | ||
|  | } | ||
|  | 
 | ||
|  | 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, struct pt_regs * regs) | ||
|  | { | ||
|  | #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, regs); | ||
|  | 		else | ||
|  | 			handle_irq(16 + i, 16 + i, regs); | ||
|  | #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, struct pt_regs * regs) | ||
|  | { | ||
|  | 	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, regs); | ||
|  | } | ||
|  | 
 | ||
|  | static void  | ||
|  | clipper_srm_device_interrupt(unsigned long vector, struct pt_regs * regs) | ||
|  | { | ||
|  | 	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, regs); | ||
|  | } | ||
|  | 
 | ||
|  | 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].handler = 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 | ||
|  | 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; | ||
|  | 	} else { | ||
|  | 		/* ??? The Contaq IDE controller on the ISA bridge uses
 | ||
|  | 		   "legacy" interrupts 14 and 15.  I don't know if anything | ||
|  | 		   can wind up at the same slot+pin on hose1, so we'll | ||
|  | 		   just have to trust whatever value the console might | ||
|  | 		   have assigned.  */ | ||
|  | 
 | ||
|  | 		u8 irq8; | ||
|  | 		pci_read_config_byte(dev, PCI_INTERRUPT_LINE, &irq8); | ||
|  | 		irq = irq8; | ||
|  | 	} | ||
|  | 
 | ||
|  | 	return 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 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 = bridge_swizzle(pin, PCI_SLOT(dev->devfn)) ; | ||
|  | 
 | ||
|  | 			/* 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 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 irq; | ||
|  | } | ||
|  | 
 | ||
|  | static void __init | ||
|  | dp264_init_pci(void) | ||
|  | { | ||
|  | 	common_init_pci(); | ||
|  | 	SMC669_Init(0); | ||
|  | } | ||
|  | 
 | ||
|  | static void __init | ||
|  | monet_init_pci(void) | ||
|  | { | ||
|  | 	common_init_pci(); | ||
|  | 	SMC669_Init(1); | ||
|  | 	es1888_init(); | ||
|  | } | ||
|  | 
 | ||
|  | 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		= common_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.  */ |