2 * pcic.c: MicroSPARC-IIep PCI controller support
4 * Copyright (C) 1998 V. Roganov and G. Raiko
6 * Code is derived from Ultra/PCI PSYCHO controller support, see that
9 * Support for diverse IIep based platforms by Pete Zaitcev.
10 * CP-1200 by Eric Brower.
13 #include <linux/kernel.h>
14 #include <linux/types.h>
15 #include <linux/init.h>
17 #include <linux/slab.h>
18 #include <linux/jiffies.h>
20 #include <asm/swift.h> /* for cache flushing. */
23 #include <linux/ctype.h>
24 #include <linux/pci.h>
25 #include <linux/time.h>
26 #include <linux/timex.h>
27 #include <linux/interrupt.h>
30 #include <asm/oplib.h>
33 #include <asm/timex.h>
34 #include <asm/timer.h>
35 #include <asm/uaccess.h>
36 #include <asm/irq_regs.h>
41 * I studied different documents and many live PROMs both from 2.30
42 * family and 3.xx versions. I came to the amazing conclusion: there is
43 * absolutely no way to route interrupts in IIep systems relying on
44 * information which PROM presents. We must hardcode interrupt routing
45 * schematics. And this actually sucks. -- zaitcev 1999/05/12
47 * To find irq for a device we determine which routing map
48 * is in effect or, in other words, on which machine we are running.
49 * We use PROM name for this although other techniques may be used
50 * in special cases (Gleb reports a PROMless IIep based system).
51 * Once we know the map we take device configuration address and
52 * find PCIC pin number where INT line goes. Then we may either program
53 * preferred irq into the PCIC or supply the preexisting irq to the device.
56 unsigned char busno; /* PCI bus number */
57 unsigned char devfn; /* Configuration address */
58 unsigned char pin; /* PCIC external interrupt pin */
59 unsigned char irq; /* Preferred IRQ (mappable in PCIC) */
60 unsigned int force; /* Enforce preferred IRQ */
65 struct pcic_ca2irq *intmap;
70 * JavaEngine-1 apparently has different versions.
72 * According to communications with Sun folks, for P2 build 501-4628-03:
73 * pin 0 - parallel, audio;
76 * pin 3 - PS/2 kbd and mouse.
78 * OEM manual (805-1486):
82 * pin 3: Not connected
83 * OEM manual says that 501-4628 & 501-4811 are the same thing,
84 * only the latter has NAND flash in place.
86 * So far unofficial Sun wins over the OEM manual. Poor OEMs...
88 static struct pcic_ca2irq pcic_i_je1a[] = { /* 501-4811-03 */
89 { 0, 0x00, 2, 12, 0 }, /* EBus: hogs all */
90 { 0, 0x01, 1, 6, 1 }, /* Happy Meal */
91 { 0, 0x80, 0, 7, 0 }, /* IGA (unused) */
94 /* XXX JS-E entry is incomplete - PCI Slot 2 address (pin 7)? */
95 static struct pcic_ca2irq pcic_i_jse[] = {
96 { 0, 0x00, 0, 13, 0 }, /* Ebus - serial and keyboard */
97 { 0, 0x01, 1, 6, 0 }, /* hme */
98 { 0, 0x08, 2, 9, 0 }, /* VGA - we hope not used :) */
99 { 0, 0x10, 6, 8, 0 }, /* PCI INTA# in Slot 1 */
100 { 0, 0x18, 7, 12, 0 }, /* PCI INTA# in Slot 2, shared w. RTC */
101 { 0, 0x38, 4, 9, 0 }, /* All ISA devices. Read 8259. */
102 { 0, 0x80, 5, 11, 0 }, /* EIDE */
103 /* {0,0x88, 0,0,0} - unknown device... PMU? Probably no interrupt. */
104 { 0, 0xA0, 4, 9, 0 }, /* USB */
106 * Some pins belong to non-PCI devices, we hardcode them in drivers.
107 * sun4m timers - irq 10, 14
108 * PC style RTC - pin 7, irq 4 ?
109 * Smart card, Parallel - pin 4 shared with USB, ISA
110 * audio - pin 3, irq 5 ?
114 /* SPARCengine-6 was the original release name of CP1200.
115 * The documentation differs between the two versions
117 static struct pcic_ca2irq pcic_i_se6[] = {
118 { 0, 0x08, 0, 2, 0 }, /* SCSI */
119 { 0, 0x01, 1, 6, 0 }, /* HME */
120 { 0, 0x00, 3, 13, 0 }, /* EBus */
124 * Krups (courtesy of Varol Kaptan)
125 * No documentation available, but it was easy to guess
126 * because it was very similar to Espresso.
128 * pin 0 - kbd, mouse, serial;
130 * pin 2 - igs (we do not use it);
132 * pin 4,5,6 - unused;
133 * pin 7 - RTC (from P2 onwards as David B. says).
135 static struct pcic_ca2irq pcic_i_jk[] = {
136 { 0, 0x00, 0, 13, 0 }, /* Ebus - serial and keyboard */
137 { 0, 0x01, 1, 6, 0 }, /* hme */
141 * Several entries in this list may point to the same routing map
142 * as several PROMs may be installed on the same physical board.
144 #define SN2L_INIT(name, map) \
145 { name, map, ARRAY_SIZE(map) }
147 static struct pcic_sn2list pcic_known_sysnames[] = {
148 SN2L_INIT("SUNW,JavaEngine1", pcic_i_je1a), /* JE1, PROM 2.32 */
149 SN2L_INIT("SUNW,JS-E", pcic_i_jse), /* PROLL JavaStation-E */
150 SN2L_INIT("SUNW,SPARCengine-6", pcic_i_se6), /* SPARCengine-6/CP-1200 */
151 SN2L_INIT("SUNW,JS-NC", pcic_i_jk), /* PROLL JavaStation-NC */
152 SN2L_INIT("SUNW,JSIIep", pcic_i_jk), /* OBP JavaStation-NC */
157 * Only one PCIC per IIep,
158 * and since we have no SMP IIep, only one per system.
161 static struct linux_pcic pcic0;
163 void __iomem *pcic_regs;
164 volatile int pcic_speculative;
165 volatile int pcic_trapped;
168 #define CONFIG_CMD(bus, device_fn, where) (0x80000000 | (((unsigned int)bus) << 16) | (((unsigned int)device_fn) << 8) | (where & ~3))
170 static int pcic_read_config_dword(unsigned int busno, unsigned int devfn,
171 int where, u32 *value)
173 struct linux_pcic *pcic;
178 local_irq_save(flags);
179 #if 0 /* does not fail here */
180 pcic_speculative = 1;
183 writel(CONFIG_CMD(busno, devfn, where), pcic->pcic_config_space_addr);
184 #if 0 /* does not fail here */
187 local_irq_restore(flags);
192 pcic_speculative = 2;
194 *value = readl(pcic->pcic_config_space_data + (where&4));
197 pcic_speculative = 0;
198 local_irq_restore(flags);
202 pcic_speculative = 0;
203 local_irq_restore(flags);
207 static int pcic_read_config(struct pci_bus *bus, unsigned int devfn,
208 int where, int size, u32 *val)
212 if (bus->number != 0) return -EINVAL;
215 pcic_read_config_dword(bus->number, devfn, where&~3, &v);
216 *val = 0xff & (v >> (8*(where & 3)));
219 if (where&1) return -EINVAL;
220 pcic_read_config_dword(bus->number, devfn, where&~3, &v);
221 *val = 0xffff & (v >> (8*(where & 3)));
224 if (where&3) return -EINVAL;
225 pcic_read_config_dword(bus->number, devfn, where&~3, val);
231 static int pcic_write_config_dword(unsigned int busno, unsigned int devfn,
232 int where, u32 value)
234 struct linux_pcic *pcic;
239 local_irq_save(flags);
240 writel(CONFIG_CMD(busno, devfn, where), pcic->pcic_config_space_addr);
241 writel(value, pcic->pcic_config_space_data + (where&4));
242 local_irq_restore(flags);
246 static int pcic_write_config(struct pci_bus *bus, unsigned int devfn,
247 int where, int size, u32 val)
251 if (bus->number != 0) return -EINVAL;
254 pcic_read_config_dword(bus->number, devfn, where&~3, &v);
255 v = (v & ~(0xff << (8*(where&3)))) |
256 ((0xff&val) << (8*(where&3)));
257 return pcic_write_config_dword(bus->number, devfn, where&~3, v);
259 if (where&1) return -EINVAL;
260 pcic_read_config_dword(bus->number, devfn, where&~3, &v);
261 v = (v & ~(0xffff << (8*(where&3)))) |
262 ((0xffff&val) << (8*(where&3)));
263 return pcic_write_config_dword(bus->number, devfn, where&~3, v);
265 if (where&3) return -EINVAL;
266 return pcic_write_config_dword(bus->number, devfn, where, val);
271 static struct pci_ops pcic_ops = {
272 .read = pcic_read_config,
273 .write = pcic_write_config,
277 * On sparc64 pcibios_init() calls pci_controller_probe().
278 * We want PCIC probed little ahead so that interrupt controller
279 * would be operational.
281 int __init pcic_probe(void)
283 struct linux_pcic *pcic;
284 struct linux_prom_registers regs[PROMREG_MAX];
285 struct linux_pbm_info* pbm;
291 prom_printf("PCIC: called twice!\n");
296 node = prom_getchild (prom_root_node);
297 node = prom_searchsiblings (node, "pci");
301 * Map in PCIC register set, config space, and IO base
303 err = prom_getproperty(node, "reg", (char*)regs, sizeof(regs));
304 if (err == 0 || err == -1) {
305 prom_printf("PCIC: Error, cannot get PCIC registers "
312 pcic->pcic_res_regs.name = "pcic_registers";
313 pcic->pcic_regs = ioremap(regs[0].phys_addr, regs[0].reg_size);
314 if (!pcic->pcic_regs) {
315 prom_printf("PCIC: Error, cannot map PCIC registers.\n");
319 pcic->pcic_res_io.name = "pcic_io";
320 if ((pcic->pcic_io = (unsigned long)
321 ioremap(regs[1].phys_addr, 0x10000)) == 0) {
322 prom_printf("PCIC: Error, cannot map PCIC IO Base.\n");
326 pcic->pcic_res_cfg_addr.name = "pcic_cfg_addr";
327 if ((pcic->pcic_config_space_addr =
328 ioremap(regs[2].phys_addr, regs[2].reg_size * 2)) == 0) {
329 prom_printf("PCIC: Error, cannot map "
330 "PCI Configuration Space Address.\n");
335 * Docs say three least significant bits in address and data
336 * must be the same. Thus, we need adjust size of data.
338 pcic->pcic_res_cfg_data.name = "pcic_cfg_data";
339 if ((pcic->pcic_config_space_data =
340 ioremap(regs[3].phys_addr, regs[3].reg_size * 2)) == 0) {
341 prom_printf("PCIC: Error, cannot map "
342 "PCI Configuration Space Data.\n");
347 pbm->prom_node = node;
348 prom_getstring(node, "name", namebuf, 63); namebuf[63] = 0;
349 strcpy(pbm->prom_name, namebuf);
352 extern volatile int t_nmi[1];
353 extern int pcic_nmi_trap_patch[1];
355 t_nmi[0] = pcic_nmi_trap_patch[0];
356 t_nmi[1] = pcic_nmi_trap_patch[1];
357 t_nmi[2] = pcic_nmi_trap_patch[2];
358 t_nmi[3] = pcic_nmi_trap_patch[3];
359 swift_flush_dcache();
360 pcic_regs = pcic->pcic_regs;
363 prom_getstring(prom_root_node, "name", namebuf, 63); namebuf[63] = 0;
365 struct pcic_sn2list *p;
367 for (p = pcic_known_sysnames; p->sysname != NULL; p++) {
368 if (strcmp(namebuf, p->sysname) == 0)
371 pcic->pcic_imap = p->intmap;
372 pcic->pcic_imdim = p->mapdim;
374 if (pcic->pcic_imap == NULL) {
376 * We do not panic here for the sake of embedded systems.
378 printk("PCIC: System %s is unknown, cannot route interrupts\n",
385 static void __init pcic_pbm_scan_bus(struct linux_pcic *pcic)
387 struct linux_pbm_info *pbm = &pcic->pbm;
389 pbm->pci_bus = pci_scan_bus(pbm->pci_first_busno, &pcic_ops, pbm);
390 #if 0 /* deadwood transplanted from sparc64 */
391 pci_fill_in_pbm_cookies(pbm->pci_bus, pbm, pbm->prom_node);
392 pci_record_assignments(pbm, pbm->pci_bus);
393 pci_assign_unassigned(pbm, pbm->pci_bus);
394 pci_fixup_irq(pbm, pbm->pci_bus);
399 * Main entry point from the PCI subsystem.
401 static int __init pcic_init(void)
403 struct linux_pcic *pcic;
406 * PCIC should be initialized at start of the timer.
407 * So, here we report the presence of PCIC and do some magic passes.
414 * Switch off IOTLB translation.
416 writeb(PCI_DVMA_CONTROL_IOTLB_DISABLE,
417 pcic->pcic_regs+PCI_DVMA_CONTROL);
420 * Increase mapped size for PCI memory space (DMA access).
421 * Should be done in that order (size first, address second).
422 * Why we couldn't set up 4GB and forget about it? XXX
424 writel(0xF0000000UL, pcic->pcic_regs+PCI_SIZE_0);
425 writel(0+PCI_BASE_ADDRESS_SPACE_MEMORY,
426 pcic->pcic_regs+PCI_BASE_ADDRESS_0);
428 pcic_pbm_scan_bus(pcic);
433 int pcic_present(void)
438 static int __devinit pdev_to_pnode(struct linux_pbm_info *pbm,
439 struct pci_dev *pdev)
441 struct linux_prom_pci_registers regs[PROMREG_MAX];
443 int node = prom_getchild(pbm->prom_node);
446 err = prom_getproperty(node, "reg",
447 (char *)®s[0], sizeof(regs));
448 if(err != 0 && err != -1) {
449 unsigned long devfn = (regs[0].which_io >> 8) & 0xff;
450 if(devfn == pdev->devfn)
453 node = prom_getsibling(node);
458 static inline struct pcidev_cookie *pci_devcookie_alloc(void)
460 return kmalloc(sizeof(struct pcidev_cookie), GFP_ATOMIC);
463 static void pcic_map_pci_device(struct linux_pcic *pcic,
464 struct pci_dev *dev, int node)
467 unsigned long address;
471 if (node == 0 || node == -1) {
472 strcpy(namebuf, "???");
474 prom_getstring(node, "name", namebuf, 63); namebuf[63] = 0;
477 for (j = 0; j < 6; j++) {
478 address = dev->resource[j].start;
479 if (address == 0) break; /* are sequential */
480 flags = dev->resource[j].flags;
481 if ((flags & IORESOURCE_IO) != 0) {
482 if (address < 0x10000) {
484 * A device responds to I/O cycles on PCI.
485 * We generate these cycles with memory
486 * access into the fixed map (phys 0x30000000).
488 * Since a device driver does not want to
489 * do ioremap() before accessing PC-style I/O,
490 * we supply virtual, ready to access address.
492 * Note that request_region()
493 * works for these devices.
495 * XXX Neat trick, but it's a *bad* idea
496 * to shit into regions like that.
497 * What if we want to allocate one more
498 * PCI base address...
500 dev->resource[j].start =
501 pcic->pcic_io + address;
502 dev->resource[j].end = 1; /* XXX */
503 dev->resource[j].flags =
504 (flags & ~IORESOURCE_IO) | IORESOURCE_MEM;
507 * OOPS... PCI Spec allows this. Sun does
508 * not have any devices getting above 64K
509 * so it must be user with a weird I/O
510 * board in a PCI slot. We must remap it
511 * under 64K but it is not done yet. XXX
513 printk("PCIC: Skipping I/O space at 0x%lx, "
514 "this will Oops if a driver attaches "
515 "device '%s' at %02x:%02x)\n", address,
516 namebuf, dev->bus->number, dev->devfn);
523 pcic_fill_irq(struct linux_pcic *pcic, struct pci_dev *dev, int node)
525 struct pcic_ca2irq *p;
529 if (node == 0 || node == -1) {
530 strcpy(namebuf, "???");
532 prom_getstring(node, "name", namebuf, sizeof(namebuf));
535 if ((p = pcic->pcic_imap) == 0) {
539 for (i = 0; i < pcic->pcic_imdim; i++) {
540 if (p->busno == dev->bus->number && p->devfn == dev->devfn)
544 if (i >= pcic->pcic_imdim) {
545 printk("PCIC: device %s devfn %02x:%02x not found in %d\n",
546 namebuf, dev->bus->number, dev->devfn, pcic->pcic_imdim);
552 if (i >= 0 && i < 4) {
553 ivec = readw(pcic->pcic_regs+PCI_INT_SELECT_LO);
554 dev->irq = ivec >> (i << 2) & 0xF;
555 } else if (i >= 4 && i < 8) {
556 ivec = readw(pcic->pcic_regs+PCI_INT_SELECT_HI);
557 dev->irq = ivec >> ((i-4) << 2) & 0xF;
558 } else { /* Corrupted map */
559 printk("PCIC: BAD PIN %d\n", i); for (;;) {}
561 /* P3 */ /* printk("PCIC: device %s pin %d ivec 0x%x irq %x\n", namebuf, i, ivec, dev->irq); */
564 * dev->irq=0 means PROM did not bother to program the upper
565 * half of PCIC. This happens on JS-E with PROM 3.11, for instance.
567 if (dev->irq == 0 || p->force) {
568 if (p->irq == 0 || p->irq >= 15) { /* Corrupted map */
569 printk("PCIC: BAD IRQ %d\n", p->irq); for (;;) {}
571 printk("PCIC: setting irq %d at pin %d for device %02x:%02x\n",
572 p->irq, p->pin, dev->bus->number, dev->devfn);
577 ivec = readw(pcic->pcic_regs+PCI_INT_SELECT_HI);
578 ivec &= ~(0xF << ((i - 4) << 2));
579 ivec |= p->irq << ((i - 4) << 2);
580 writew(ivec, pcic->pcic_regs+PCI_INT_SELECT_HI);
582 ivec = readw(pcic->pcic_regs+PCI_INT_SELECT_LO);
583 ivec &= ~(0xF << (i << 2));
584 ivec |= p->irq << (i << 2);
585 writew(ivec, pcic->pcic_regs+PCI_INT_SELECT_LO);
593 * Normally called from {do_}pci_scan_bus...
595 void __devinit pcibios_fixup_bus(struct pci_bus *bus)
598 int i, has_io, has_mem;
600 struct linux_pcic *pcic;
601 /* struct linux_pbm_info* pbm = &pcic->pbm; */
603 struct pcidev_cookie *pcp;
606 printk("pcibios_fixup_bus: no PCIC\n");
612 * Next crud is an equivalent of pbm = pcic_bus_to_pbm(bus);
614 if (bus->number != 0) {
615 printk("pcibios_fixup_bus: nonzero bus 0x%x\n", bus->number);
619 list_for_each_entry(dev, &bus->devices, bus_list) {
622 * Comment from i386 branch:
623 * There are buggy BIOSes that forget to enable I/O and memory
624 * access to PCI devices. We try to fix this, but we need to
625 * be sure that the BIOS didn't forget to assign an address
626 * to the device. [mj]
627 * OBP is a case of such BIOS :-)
629 has_io = has_mem = 0;
631 unsigned long f = dev->resource[i].flags;
632 if (f & IORESOURCE_IO) {
634 } else if (f & IORESOURCE_MEM)
637 pcic_read_config(dev->bus, dev->devfn, PCI_COMMAND, 2, &cmd);
638 if (has_io && !(cmd & PCI_COMMAND_IO)) {
639 printk("PCIC: Enabling I/O for device %02x:%02x\n",
640 dev->bus->number, dev->devfn);
641 cmd |= PCI_COMMAND_IO;
642 pcic_write_config(dev->bus, dev->devfn,
643 PCI_COMMAND, 2, cmd);
645 if (has_mem && !(cmd & PCI_COMMAND_MEMORY)) {
646 printk("PCIC: Enabling memory for device %02x:%02x\n",
647 dev->bus->number, dev->devfn);
648 cmd |= PCI_COMMAND_MEMORY;
649 pcic_write_config(dev->bus, dev->devfn,
650 PCI_COMMAND, 2, cmd);
653 node = pdev_to_pnode(&pcic->pbm, dev);
658 pcp = pci_devcookie_alloc();
659 pcp->pbm = &pcic->pbm;
660 pcp->prom_node = of_find_node_by_phandle(node);
663 /* fixing I/O to look like memory */
664 if ((dev->class>>16) != PCI_BASE_CLASS_BRIDGE)
665 pcic_map_pci_device(pcic, dev, node);
667 pcic_fill_irq(pcic, dev, node);
672 * pcic_pin_to_irq() is exported to bus probing code
675 pcic_pin_to_irq(unsigned int pin, const char *name)
677 struct linux_pcic *pcic = &pcic0;
682 ivec = readw(pcic->pcic_regs+PCI_INT_SELECT_LO);
683 irq = ivec >> (pin << 2) & 0xF;
684 } else if (pin < 8) {
685 ivec = readw(pcic->pcic_regs+PCI_INT_SELECT_HI);
686 irq = ivec >> ((pin-4) << 2) & 0xF;
687 } else { /* Corrupted map */
688 printk("PCIC: BAD PIN %d FOR %s\n", pin, name);
689 for (;;) {} /* XXX Cannot panic properly in case of PROLL */
691 /* P3 */ /* printk("PCIC: dev %s pin %d ivec 0x%x irq %x\n", name, pin, ivec, irq); */
695 /* Makes compiler happy */
696 static volatile int pcic_timer_dummy;
698 static void pcic_clear_clock_irq(void)
700 pcic_timer_dummy = readl(pcic0.pcic_regs+PCI_SYS_LIMIT);
703 static irqreturn_t pcic_timer_handler (int irq, void *h)
705 write_seqlock(&xtime_lock); /* Dummy, to show that we remember */
706 pcic_clear_clock_irq();
708 write_sequnlock(&xtime_lock);
710 update_process_times(user_mode(get_irq_regs()));
715 #define USECS_PER_JIFFY 10000 /* We have 100HZ "standard" timer for sparc */
716 #define TICK_TIMER_LIMIT ((100*1000000/4)/100)
718 u32 pci_gettimeoffset(void)
721 * We divide all by 100
722 * to have microsecond resolution and to avoid overflow
724 unsigned long count =
725 readl(pcic0.pcic_regs+PCI_SYS_COUNTER) & ~PCI_SYS_COUNTER_OVERFLOW;
726 count = ((count/100)*USECS_PER_JIFFY) / (TICK_TIMER_LIMIT/100);
731 void __init pci_time_init(void)
733 struct linux_pcic *pcic = &pcic0;
737 do_arch_gettimeoffset = pci_gettimeoffset;
741 writel (TICK_TIMER_LIMIT, pcic->pcic_regs+PCI_SYS_LIMIT);
742 /* PROM should set appropriate irq */
743 v = readb(pcic->pcic_regs+PCI_COUNTER_IRQ);
744 timer_irq = PCI_COUNTER_IRQ_SYS(v);
745 writel (PCI_COUNTER_IRQ_SET(timer_irq, 0),
746 pcic->pcic_regs+PCI_COUNTER_IRQ);
747 irq = request_irq(timer_irq, pcic_timer_handler,
748 (IRQF_DISABLED | SA_STATIC_ALLOC), "timer", NULL);
750 prom_printf("time_init: unable to attach IRQ%d\n", timer_irq);
758 static void watchdog_reset() {
759 writeb(0, pcic->pcic_regs+PCI_SYS_STATUS);
764 * Other archs parse arguments here.
766 char * __devinit pcibios_setup(char *str)
771 resource_size_t pcibios_align_resource(void *data, const struct resource *res,
772 resource_size_t size, resource_size_t align)
777 int pcibios_enable_device(struct pci_dev *pdev, int mask)
785 void pcic_nmi(unsigned int pend, struct pt_regs *regs)
788 pend = flip_dword(pend);
790 if (!pcic_speculative || (pend & PCI_SYS_INT_PENDING_PIO) == 0) {
792 * XXX On CP-1200 PCI #SERR may happen, we do not know
793 * what to do about it yet.
795 printk("Aiee, NMI pend 0x%x pc 0x%x spec %d, hanging\n",
796 pend, (int)regs->pc, pcic_speculative);
799 pcic_speculative = 0;
801 regs->pc = regs->npc;
805 static inline unsigned long get_irqmask(int irq_nr)
810 static void pcic_disable_irq(unsigned int irq_nr)
812 unsigned long mask, flags;
814 mask = get_irqmask(irq_nr);
815 local_irq_save(flags);
816 writel(mask, pcic0.pcic_regs+PCI_SYS_INT_TARGET_MASK_SET);
817 local_irq_restore(flags);
820 static void pcic_enable_irq(unsigned int irq_nr)
822 unsigned long mask, flags;
824 mask = get_irqmask(irq_nr);
825 local_irq_save(flags);
826 writel(mask, pcic0.pcic_regs+PCI_SYS_INT_TARGET_MASK_CLEAR);
827 local_irq_restore(flags);
830 static void pcic_load_profile_irq(int cpu, unsigned int limit)
832 printk("PCIC: unimplemented code: FILE=%s LINE=%d", __FILE__, __LINE__);
835 /* We assume the caller has disabled local interrupts when these are called,
836 * or else very bizarre behavior will result.
838 static void pcic_disable_pil_irq(unsigned int pil)
840 writel(get_irqmask(pil), pcic0.pcic_regs+PCI_SYS_INT_TARGET_MASK_SET);
843 static void pcic_enable_pil_irq(unsigned int pil)
845 writel(get_irqmask(pil), pcic0.pcic_regs+PCI_SYS_INT_TARGET_MASK_CLEAR);
848 void __init sun4m_pci_init_IRQ(void)
850 BTFIXUPSET_CALL(enable_irq, pcic_enable_irq, BTFIXUPCALL_NORM);
851 BTFIXUPSET_CALL(disable_irq, pcic_disable_irq, BTFIXUPCALL_NORM);
852 BTFIXUPSET_CALL(enable_pil_irq, pcic_enable_pil_irq, BTFIXUPCALL_NORM);
853 BTFIXUPSET_CALL(disable_pil_irq, pcic_disable_pil_irq, BTFIXUPCALL_NORM);
854 BTFIXUPSET_CALL(clear_clock_irq, pcic_clear_clock_irq, BTFIXUPCALL_NORM);
855 BTFIXUPSET_CALL(load_profile_irq, pcic_load_profile_irq, BTFIXUPCALL_NORM);
858 int pcibios_assign_resource(struct pci_dev *pdev, int resource)
863 struct device_node *pci_device_to_OF_node(struct pci_dev *pdev)
865 struct pcidev_cookie *pc = pdev->sysdata;
867 return pc->prom_node;
869 EXPORT_SYMBOL(pci_device_to_OF_node);
872 * This probably belongs here rather than ioport.c because
873 * we do not want this crud linked into SBus kernels.
874 * Also, think for a moment about likes of floppy.c that
875 * include architecture specific parts. They may want to redefine ins/outs.
877 * We do not use horrible macros here because we want to
878 * advance pointer by sizeof(size).
880 void outsb(unsigned long addr, const void *src, unsigned long count)
884 outb(*(const char *)src, addr);
889 EXPORT_SYMBOL(outsb);
891 void outsw(unsigned long addr, const void *src, unsigned long count)
895 outw(*(const short *)src, addr);
900 EXPORT_SYMBOL(outsw);
902 void outsl(unsigned long addr, const void *src, unsigned long count)
906 outl(*(const long *)src, addr);
911 EXPORT_SYMBOL(outsl);
913 void insb(unsigned long addr, void *dst, unsigned long count)
917 *(unsigned char *)dst = inb(addr);
924 void insw(unsigned long addr, void *dst, unsigned long count)
928 *(unsigned short *)dst = inw(addr);
935 void insl(unsigned long addr, void *dst, unsigned long count)
940 * XXX I am sure we are in for an unaligned trap here.
942 *(unsigned long *)dst = inl(addr);
949 subsys_initcall(pcic_init);