1 // SPDX-License-Identifier: GPL-2.0
3  *	linux/arch/alpha/kernel/sys_dp264.c
5  *	Copyright (C) 1995 David A Rusling
6  *	Copyright (C) 1996, 1999 Jay A Estabrook
7  *	Copyright (C) 1998, 1999 Richard Henderson
9  *	Modified by Christopher C. Chimelis, 2001 to
68 	dim0 = &cchip->dim0.csr;  in tsunami_update_irq_hw()
69 	dim1 = &cchip->dim1.csr;  in tsunami_update_irq_hw()
70 	dim2 = &cchip->dim2.csr;  in tsunami_update_irq_hw()
71 	dim3 = &cchip->dim3.csr;  in tsunami_update_irq_hw()
88 	if (bcpu == 0) dimB = &cchip->dim0.csr;  in tsunami_update_irq_hw()
89 	else if (bcpu == 1) dimB = &cchip->dim1.csr;  in tsunami_update_irq_hw()
90 	else if (bcpu == 2) dimB = &cchip->dim2.csr;  in tsunami_update_irq_hw()
91 	else dimB = &cchip->dim3.csr;  in tsunami_update_irq_hw()
103 	cached_irq_mask |= 1UL << d->irq;  in dp264_enable_irq()
112 	cached_irq_mask &= ~(1UL << d->irq);  in dp264_disable_irq()
121 	cached_irq_mask |= 1UL << (d->irq - 16);  in clipper_enable_irq()
130 	cached_irq_mask &= ~(1UL << (d->irq - 16));  in clipper_disable_irq()
155 	cpu_set_irq_affinity(d->irq, *affinity);  in dp264_set_affinity()
167 	cpu_set_irq_affinity(d->irq - 16, *affinity);  in clipper_set_affinity()
197 	pld = TSUNAMI_cchip->dir0.csr;  in dp264_device_interrupt()
205 		pld &= pld - 1; /* clear least bit set */  in dp264_device_interrupt()
218 	irq = (vector - 0x800) >> 4;  in dp264_srm_device_interrupt()
223 	 *	0x900 + (0x10 * DRIR-bit)  in dp264_srm_device_interrupt()
232 		irq -= 16;  in dp264_srm_device_interrupt()
242 	irq = (vector - 0x800) >> 4;  in clipper_srm_device_interrupt()
247 	 *	0x900 + (0x10 * DRIR-bit)  in clipper_srm_device_interrupt()
251 	 * CLIPPER uses bits 8-47 for PCI interrupts, so we do not need  in clipper_srm_device_interrupt()
309  * 0-17     Unused
313  *21        Interrupt Line C from slot 2 PCI0
317  *25        Interrupt Line C from slot 1 PCI0
321  *29        Interrupt Line C from slot 0 PCI0
326  *33        Interrupt Line C from slot 3 PCI1
330  *37        Interrupt Line C from slot 2 PCI1
334  *41        Interrupt Line C from slot 1 PCI1
338  *45        Interrupt Line C from slot 0 PCI1
341  *48-52     Unused
345  *56-60     Unused
380 		{    -1,    -1,    -1,    -1,    -1}, /* IdSel 5 ISA Bridge */  in dp264_map_irq()
388 	struct pci_controller *hose = dev->sysdata;  in dp264_map_irq()
392 		irq += 16 * hose->index;  in dp264_map_irq()
402 		{    45,    45,    45,    45,    45}, /* IdSel 3 21143 PCI1 */  in monet_map_irq()
403 		{    -1,    -1,    -1,    -1,    -1}, /* IdSel 4 unused */  in monet_map_irq()
404 		{    -1,    -1,    -1,    -1,    -1}, /* IdSel 5 unused */  in monet_map_irq()
406 		{    -1,    -1,    -1,    -1,    -1}, /* IdSel 7 ISA Bridge */  in monet_map_irq()
407 		{    -1,    -1,    -1,    -1,    -1}, /* IdSel 8 P2P PCI1 */  in monet_map_irq()
412 		{    -1,    -1,    -1,    -1,    -1}, /* IdSel 9 unused */  in monet_map_irq()
413 		{    -1,    -1,    -1,    -1,    -1}, /* IdSel 10 unused */  in monet_map_irq()
429 	struct pci_controller *hose = dev->sysdata;  in monet_swizzle()
432 	if (!dev->bus->parent) {  in monet_swizzle()
433 		slot = PCI_SLOT(dev->devfn);  in monet_swizzle()
435 	/* Check for the built-in bridge on hose 1. */  in monet_swizzle()
436 	else if (hose->index == 1 && PCI_SLOT(dev->bus->self->devfn) == 8) {  in monet_swizzle()
437 		slot = PCI_SLOT(dev->devfn);  in monet_swizzle()
439 		/* Must be a card-based bridge.  */  in monet_swizzle()
441 			/* Check for built-in bridge on hose 1. */  in monet_swizzle()
442 			if (hose->index == 1 &&  in monet_swizzle()
443 			    PCI_SLOT(dev->bus->self->devfn) == 8) {  in monet_swizzle()
444 				slot = PCI_SLOT(dev->devfn);  in monet_swizzle()
450 			dev = dev->bus->self;  in monet_swizzle()
452 			slot = PCI_SLOT(dev->devfn);  in monet_swizzle()
453 		} while (dev->bus->self);  in monet_swizzle()
464 		{    -1,    -1,    -1,    -1,    -1}, /* IdSel 7 ISA Bridge */  in webbrick_map_irq()
465 		{    -1,    -1,    -1,    -1,    -1}, /* IdSel 8 unused */  in webbrick_map_irq()
467 		{    -1,    -1,    -1,    -1,    -1}, /* IdSel 10 unused */  in webbrick_map_irq()
469 		{    -1,    -1,    -1,    -1,    -1}, /* IdSel 12 unused */  in webbrick_map_irq()
470 		{    -1,    -1,    -1,    -1,    -1}, /* IdSel 13 unused */  in webbrick_map_irq()
474 		{    47,    47,    46,    45,    44}, /* IdSel 17 slot 3 */  in webbrick_map_irq()
492 		{    -1,    -1,    -1,    -1,    -1}  /* IdSel 7 ISA Bridge */  in clipper_map_irq()
495 	struct pci_controller *hose = dev->sysdata;  in clipper_map_irq()
499 		irq += 16 * hose->index;  in clipper_map_irq()
534 	hose_head->sg_isa->align_entry = 4;  in webbrick_init_arch()
535 	hose_head->sg_pci->align_entry = 4;  in webbrick_init_arch()