1 // SPDX-License-Identifier: GPL-2.0
5  *	Copyright (C) 1995 David A Rusling
6  *	Copyright (C) 1996 Jay A Estabrook
9  * Code supporting the NORITAKE (AlphaServer 1000A), 
10  * CORELLE (AlphaServer 800), and ALCOR Primo (AlphaStation 600A).
50 noritake_enable_irq(struct irq_data *d)  in noritake_enable_irq()  argument
52 	noritake_update_irq_hw(d->irq, cached_irq_mask |= 1 << (d->irq - 16));  in noritake_enable_irq()
56 noritake_disable_irq(struct irq_data *d)  in noritake_disable_irq()  argument
58 	noritake_update_irq_hw(d->irq, cached_irq_mask &= ~(1 << (d->irq - 16)));  in noritake_disable_irq()
86 		pld &= pld - 1; /* clear least bit set */  in noritake_device_interrupt()
100 	irq = (vector - 0x800) >> 4;  in noritake_srm_device_interrupt()
109 	 * So, here's this additional grotty hack... :-(  in noritake_srm_device_interrupt()
112 		irq = irq + 1;  in noritake_srm_device_interrupt()
142  * Summary @ 0x542, summary register #1:
145  * 1        QLOGIC ISP1020A SCSI
146  * 2        Interrupt Line A from slot 0
148  * 4        Interrupt Line A from slot 1
149  * 5        Interrupt line B from slot 1
150  * 6        Interrupt Line A from slot 2
152  * 8        Interrupt Line A from slot 3
153  * 9        Interrupt Line B from slot 3
154  *10        Interrupt Line A from slot 4
156  *12        Interrupt Line A from slot 5
158  *14        Interrupt Line A from slot 6
164  * 1        OR of secondary bus ints
166  * 3        Interrupt Line D from slot 0
167  * 4        Interrupt Line C from slot 1
168  * 5        Interrupt line D from slot 1
170  * 7        Interrupt Line D from slot 2
172  * 9        Interrupt Line D from slot 3
174  *11        Interrupt Line D from slot 4
176  *13        Interrupt Line D from slot 5
178  *15        Interrupt Line D from slot 6
183  *  7       Intel PCI-EISA bridge chip
184  *  8       DEC PCI-PCI bridge chip
186  * 12       PCI on board slot 1
201 		{ 16+1,  16+1,  16+1,  16+1,  16+1},  /* IdSel 16,  QLOGIC */  in noritake_map_irq()
202 		{   -1,    -1,    -1,    -1,    -1},  /* IdSel 17, S3 Trio64 */  in noritake_map_irq()
203 		{   -1,    -1,    -1,    -1,    -1},  /* IdSel 18,  PCEB */  in noritake_map_irq()
204 		{   -1,    -1,    -1,    -1,    -1},  /* IdSel 19,  PPB  */  in noritake_map_irq()
205 		{   -1,    -1,    -1,    -1,    -1},  /* IdSel 20,  ???? */  in noritake_map_irq()
206 		{   -1,    -1,    -1,    -1,    -1},  /* IdSel 21,  ???? */  in noritake_map_irq()
208 		{ 16+4,  16+4,  16+5,  32+4,  32+5},  /* IdSel 23,  slot 1 */  in noritake_map_irq()
210 		{ 16+8,  16+8,  16+9,  32+8,  32+9},  /* IdSel 25,  slot 3 */  in noritake_map_irq()
211 		/* The following 5 are actually on PCI bus 1, which is   in noritake_map_irq()
212 		   across the built-in bridge of the NORITAKE only.  */  in noritake_map_irq()
213 		{ 16+1,  16+1,  16+1,  16+1,  16+1},  /* IdSel 16,  QLOGIC */  in noritake_map_irq()
214 		{ 16+8,  16+8,  16+9,  32+8,  32+9},  /* IdSel 17,  slot 3 */  in noritake_map_irq()
228 	if (dev->bus->number == 0) {  in noritake_swizzle()
229 		slot = PCI_SLOT(dev->devfn);  in noritake_swizzle()
231 	/* Check for the built-in bridge */  in noritake_swizzle()
232 	else if (PCI_SLOT(dev->bus->self->devfn) == 8) {  in noritake_swizzle()
233 		slot = PCI_SLOT(dev->devfn) + 15; /* WAG! */  in noritake_swizzle()
237 		/* Must be a card-based bridge.  */  in noritake_swizzle()
239 			if (PCI_SLOT(dev->bus->self->devfn) == 8) {  in noritake_swizzle()
240 				slot = PCI_SLOT(dev->devfn) + 15;  in noritake_swizzle()
246 			dev = dev->bus->self;  in noritake_swizzle()
248 			slot = PCI_SLOT(dev->devfn);  in noritake_swizzle()
249 		} while (dev->bus->self);  in noritake_swizzle()
256 	.vector_name		= "Noritake-Primo",