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>
28
#include <linux/export.h>
31
#include <asm/oplib.h>
34
#include <asm/timex.h>
35
#include <asm/timer.h>
36
#include <asm/uaccess.h>
37
#include <asm/irq_regs.h>
42
* I studied different documents and many live PROMs both from 2.30
43
* family and 3.xx versions. I came to the amazing conclusion: there is
44
* absolutely no way to route interrupts in IIep systems relying on
45
* information which PROM presents. We must hardcode interrupt routing
46
* schematics. And this actually sucks. -- zaitcev 1999/05/12
48
* To find irq for a device we determine which routing map
49
* is in effect or, in other words, on which machine we are running.
50
* We use PROM name for this although other techniques may be used
51
* in special cases (Gleb reports a PROMless IIep based system).
52
* Once we know the map we take device configuration address and
53
* find PCIC pin number where INT line goes. Then we may either program
54
* preferred irq into the PCIC or supply the preexisting irq to the device.
57
unsigned char busno; /* PCI bus number */
58
unsigned char devfn; /* Configuration address */
59
unsigned char pin; /* PCIC external interrupt pin */
60
unsigned char irq; /* Preferred IRQ (mappable in PCIC) */
61
unsigned int force; /* Enforce preferred IRQ */
66
struct pcic_ca2irq *intmap;
71
* JavaEngine-1 apparently has different versions.
73
* According to communications with Sun folks, for P2 build 501-4628-03:
74
* pin 0 - parallel, audio;
77
* pin 3 - PS/2 kbd and mouse.
79
* OEM manual (805-1486):
83
* pin 3: Not connected
84
* OEM manual says that 501-4628 & 501-4811 are the same thing,
85
* only the latter has NAND flash in place.
87
* So far unofficial Sun wins over the OEM manual. Poor OEMs...
89
static struct pcic_ca2irq pcic_i_je1a[] = { /* 501-4811-03 */
90
{ 0, 0x00, 2, 12, 0 }, /* EBus: hogs all */
91
{ 0, 0x01, 1, 6, 1 }, /* Happy Meal */
92
{ 0, 0x80, 0, 7, 0 }, /* IGA (unused) */
95
/* XXX JS-E entry is incomplete - PCI Slot 2 address (pin 7)? */
96
static struct pcic_ca2irq pcic_i_jse[] = {
97
{ 0, 0x00, 0, 13, 0 }, /* Ebus - serial and keyboard */
98
{ 0, 0x01, 1, 6, 0 }, /* hme */
99
{ 0, 0x08, 2, 9, 0 }, /* VGA - we hope not used :) */
100
{ 0, 0x10, 6, 8, 0 }, /* PCI INTA# in Slot 1 */
101
{ 0, 0x18, 7, 12, 0 }, /* PCI INTA# in Slot 2, shared w. RTC */
102
{ 0, 0x38, 4, 9, 0 }, /* All ISA devices. Read 8259. */
103
{ 0, 0x80, 5, 11, 0 }, /* EIDE */
104
/* {0,0x88, 0,0,0} - unknown device... PMU? Probably no interrupt. */
105
{ 0, 0xA0, 4, 9, 0 }, /* USB */
107
* Some pins belong to non-PCI devices, we hardcode them in drivers.
108
* sun4m timers - irq 10, 14
109
* PC style RTC - pin 7, irq 4 ?
110
* Smart card, Parallel - pin 4 shared with USB, ISA
111
* audio - pin 3, irq 5 ?
115
/* SPARCengine-6 was the original release name of CP1200.
116
* The documentation differs between the two versions
118
static struct pcic_ca2irq pcic_i_se6[] = {
119
{ 0, 0x08, 0, 2, 0 }, /* SCSI */
120
{ 0, 0x01, 1, 6, 0 }, /* HME */
121
{ 0, 0x00, 3, 13, 0 }, /* EBus */
125
* Krups (courtesy of Varol Kaptan)
126
* No documentation available, but it was easy to guess
127
* because it was very similar to Espresso.
129
* pin 0 - kbd, mouse, serial;
131
* pin 2 - igs (we do not use it);
133
* pin 4,5,6 - unused;
134
* pin 7 - RTC (from P2 onwards as David B. says).
136
static struct pcic_ca2irq pcic_i_jk[] = {
137
{ 0, 0x00, 0, 13, 0 }, /* Ebus - serial and keyboard */
138
{ 0, 0x01, 1, 6, 0 }, /* hme */
142
* Several entries in this list may point to the same routing map
143
* as several PROMs may be installed on the same physical board.
145
#define SN2L_INIT(name, map) \
146
{ name, map, ARRAY_SIZE(map) }
148
static struct pcic_sn2list pcic_known_sysnames[] = {
149
SN2L_INIT("SUNW,JavaEngine1", pcic_i_je1a), /* JE1, PROM 2.32 */
150
SN2L_INIT("SUNW,JS-E", pcic_i_jse), /* PROLL JavaStation-E */
151
SN2L_INIT("SUNW,SPARCengine-6", pcic_i_se6), /* SPARCengine-6/CP-1200 */
152
SN2L_INIT("SUNW,JS-NC", pcic_i_jk), /* PROLL JavaStation-NC */
153
SN2L_INIT("SUNW,JSIIep", pcic_i_jk), /* OBP JavaStation-NC */
158
* Only one PCIC per IIep,
159
* and since we have no SMP IIep, only one per system.
162
static struct linux_pcic pcic0;
164
void __iomem *pcic_regs;
165
volatile int pcic_speculative;
166
volatile int pcic_trapped;
169
unsigned int pcic_build_device_irq(struct platform_device *op,
170
unsigned int real_irq);
172
#define CONFIG_CMD(bus, device_fn, where) (0x80000000 | (((unsigned int)bus) << 16) | (((unsigned int)device_fn) << 8) | (where & ~3))
174
static int pcic_read_config_dword(unsigned int busno, unsigned int devfn,
175
int where, u32 *value)
177
struct linux_pcic *pcic;
182
local_irq_save(flags);
183
#if 0 /* does not fail here */
184
pcic_speculative = 1;
187
writel(CONFIG_CMD(busno, devfn, where), pcic->pcic_config_space_addr);
188
#if 0 /* does not fail here */
191
local_irq_restore(flags);
196
pcic_speculative = 2;
198
*value = readl(pcic->pcic_config_space_data + (where&4));
201
pcic_speculative = 0;
202
local_irq_restore(flags);
206
pcic_speculative = 0;
207
local_irq_restore(flags);
211
static int pcic_read_config(struct pci_bus *bus, unsigned int devfn,
212
int where, int size, u32 *val)
216
if (bus->number != 0) return -EINVAL;
219
pcic_read_config_dword(bus->number, devfn, where&~3, &v);
220
*val = 0xff & (v >> (8*(where & 3)));
223
if (where&1) return -EINVAL;
224
pcic_read_config_dword(bus->number, devfn, where&~3, &v);
225
*val = 0xffff & (v >> (8*(where & 3)));
228
if (where&3) return -EINVAL;
229
pcic_read_config_dword(bus->number, devfn, where&~3, val);
235
static int pcic_write_config_dword(unsigned int busno, unsigned int devfn,
236
int where, u32 value)
238
struct linux_pcic *pcic;
243
local_irq_save(flags);
244
writel(CONFIG_CMD(busno, devfn, where), pcic->pcic_config_space_addr);
245
writel(value, pcic->pcic_config_space_data + (where&4));
246
local_irq_restore(flags);
250
static int pcic_write_config(struct pci_bus *bus, unsigned int devfn,
251
int where, int size, u32 val)
255
if (bus->number != 0) return -EINVAL;
258
pcic_read_config_dword(bus->number, devfn, where&~3, &v);
259
v = (v & ~(0xff << (8*(where&3)))) |
260
((0xff&val) << (8*(where&3)));
261
return pcic_write_config_dword(bus->number, devfn, where&~3, v);
263
if (where&1) return -EINVAL;
264
pcic_read_config_dword(bus->number, devfn, where&~3, &v);
265
v = (v & ~(0xffff << (8*(where&3)))) |
266
((0xffff&val) << (8*(where&3)));
267
return pcic_write_config_dword(bus->number, devfn, where&~3, v);
269
if (where&3) return -EINVAL;
270
return pcic_write_config_dword(bus->number, devfn, where, val);
275
static struct pci_ops pcic_ops = {
276
.read = pcic_read_config,
277
.write = pcic_write_config,
281
* On sparc64 pcibios_init() calls pci_controller_probe().
282
* We want PCIC probed little ahead so that interrupt controller
283
* would be operational.
285
int __init pcic_probe(void)
287
struct linux_pcic *pcic;
288
struct linux_prom_registers regs[PROMREG_MAX];
289
struct linux_pbm_info* pbm;
295
prom_printf("PCIC: called twice!\n");
300
node = prom_getchild (prom_root_node);
301
node = prom_searchsiblings (node, "pci");
305
* Map in PCIC register set, config space, and IO base
307
err = prom_getproperty(node, "reg", (char*)regs, sizeof(regs));
308
if (err == 0 || err == -1) {
309
prom_printf("PCIC: Error, cannot get PCIC registers "
316
pcic->pcic_res_regs.name = "pcic_registers";
317
pcic->pcic_regs = ioremap(regs[0].phys_addr, regs[0].reg_size);
318
if (!pcic->pcic_regs) {
319
prom_printf("PCIC: Error, cannot map PCIC registers.\n");
323
pcic->pcic_res_io.name = "pcic_io";
324
if ((pcic->pcic_io = (unsigned long)
325
ioremap(regs[1].phys_addr, 0x10000)) == 0) {
326
prom_printf("PCIC: Error, cannot map PCIC IO Base.\n");
330
pcic->pcic_res_cfg_addr.name = "pcic_cfg_addr";
331
if ((pcic->pcic_config_space_addr =
332
ioremap(regs[2].phys_addr, regs[2].reg_size * 2)) == 0) {
333
prom_printf("PCIC: Error, cannot map "
334
"PCI Configuration Space Address.\n");
339
* Docs say three least significant bits in address and data
340
* must be the same. Thus, we need adjust size of data.
342
pcic->pcic_res_cfg_data.name = "pcic_cfg_data";
343
if ((pcic->pcic_config_space_data =
344
ioremap(regs[3].phys_addr, regs[3].reg_size * 2)) == 0) {
345
prom_printf("PCIC: Error, cannot map "
346
"PCI Configuration Space Data.\n");
351
pbm->prom_node = node;
352
prom_getstring(node, "name", namebuf, 63); namebuf[63] = 0;
353
strcpy(pbm->prom_name, namebuf);
356
extern volatile int t_nmi[4];
357
extern int pcic_nmi_trap_patch[4];
359
t_nmi[0] = pcic_nmi_trap_patch[0];
360
t_nmi[1] = pcic_nmi_trap_patch[1];
361
t_nmi[2] = pcic_nmi_trap_patch[2];
362
t_nmi[3] = pcic_nmi_trap_patch[3];
363
swift_flush_dcache();
364
pcic_regs = pcic->pcic_regs;
367
prom_getstring(prom_root_node, "name", namebuf, 63); namebuf[63] = 0;
369
struct pcic_sn2list *p;
371
for (p = pcic_known_sysnames; p->sysname != NULL; p++) {
372
if (strcmp(namebuf, p->sysname) == 0)
375
pcic->pcic_imap = p->intmap;
376
pcic->pcic_imdim = p->mapdim;
378
if (pcic->pcic_imap == NULL) {
380
* We do not panic here for the sake of embedded systems.
382
printk("PCIC: System %s is unknown, cannot route interrupts\n",
389
static void __init pcic_pbm_scan_bus(struct linux_pcic *pcic)
391
struct linux_pbm_info *pbm = &pcic->pbm;
393
pbm->pci_bus = pci_scan_bus(pbm->pci_first_busno, &pcic_ops, pbm);
394
#if 0 /* deadwood transplanted from sparc64 */
395
pci_fill_in_pbm_cookies(pbm->pci_bus, pbm, pbm->prom_node);
396
pci_record_assignments(pbm, pbm->pci_bus);
397
pci_assign_unassigned(pbm, pbm->pci_bus);
398
pci_fixup_irq(pbm, pbm->pci_bus);
403
* Main entry point from the PCI subsystem.
405
static int __init pcic_init(void)
407
struct linux_pcic *pcic;
410
* PCIC should be initialized at start of the timer.
411
* So, here we report the presence of PCIC and do some magic passes.
418
* Switch off IOTLB translation.
420
writeb(PCI_DVMA_CONTROL_IOTLB_DISABLE,
421
pcic->pcic_regs+PCI_DVMA_CONTROL);
424
* Increase mapped size for PCI memory space (DMA access).
425
* Should be done in that order (size first, address second).
426
* Why we couldn't set up 4GB and forget about it? XXX
428
writel(0xF0000000UL, pcic->pcic_regs+PCI_SIZE_0);
429
writel(0+PCI_BASE_ADDRESS_SPACE_MEMORY,
430
pcic->pcic_regs+PCI_BASE_ADDRESS_0);
432
pcic_pbm_scan_bus(pcic);
437
int pcic_present(void)
442
static int __devinit pdev_to_pnode(struct linux_pbm_info *pbm,
443
struct pci_dev *pdev)
445
struct linux_prom_pci_registers regs[PROMREG_MAX];
447
phandle node = prom_getchild(pbm->prom_node);
450
err = prom_getproperty(node, "reg",
451
(char *)®s[0], sizeof(regs));
452
if(err != 0 && err != -1) {
453
unsigned long devfn = (regs[0].which_io >> 8) & 0xff;
454
if(devfn == pdev->devfn)
457
node = prom_getsibling(node);
462
static inline struct pcidev_cookie *pci_devcookie_alloc(void)
464
return kmalloc(sizeof(struct pcidev_cookie), GFP_ATOMIC);
467
static void pcic_map_pci_device(struct linux_pcic *pcic,
468
struct pci_dev *dev, int node)
471
unsigned long address;
475
if (node == 0 || node == -1) {
476
strcpy(namebuf, "???");
478
prom_getstring(node, "name", namebuf, 63); namebuf[63] = 0;
481
for (j = 0; j < 6; j++) {
482
address = dev->resource[j].start;
483
if (address == 0) break; /* are sequential */
484
flags = dev->resource[j].flags;
485
if ((flags & IORESOURCE_IO) != 0) {
486
if (address < 0x10000) {
488
* A device responds to I/O cycles on PCI.
489
* We generate these cycles with memory
490
* access into the fixed map (phys 0x30000000).
492
* Since a device driver does not want to
493
* do ioremap() before accessing PC-style I/O,
494
* we supply virtual, ready to access address.
496
* Note that request_region()
497
* works for these devices.
499
* XXX Neat trick, but it's a *bad* idea
500
* to shit into regions like that.
501
* What if we want to allocate one more
502
* PCI base address...
504
dev->resource[j].start =
505
pcic->pcic_io + address;
506
dev->resource[j].end = 1; /* XXX */
507
dev->resource[j].flags =
508
(flags & ~IORESOURCE_IO) | IORESOURCE_MEM;
511
* OOPS... PCI Spec allows this. Sun does
512
* not have any devices getting above 64K
513
* so it must be user with a weird I/O
514
* board in a PCI slot. We must remap it
515
* under 64K but it is not done yet. XXX
517
printk("PCIC: Skipping I/O space at 0x%lx, "
518
"this will Oops if a driver attaches "
519
"device '%s' at %02x:%02x)\n", address,
520
namebuf, dev->bus->number, dev->devfn);
527
pcic_fill_irq(struct linux_pcic *pcic, struct pci_dev *dev, int node)
529
struct pcic_ca2irq *p;
530
unsigned int real_irq;
534
if (node == 0 || node == -1) {
535
strcpy(namebuf, "???");
537
prom_getstring(node, "name", namebuf, sizeof(namebuf));
540
if ((p = pcic->pcic_imap) == 0) {
544
for (i = 0; i < pcic->pcic_imdim; i++) {
545
if (p->busno == dev->bus->number && p->devfn == dev->devfn)
549
if (i >= pcic->pcic_imdim) {
550
printk("PCIC: device %s devfn %02x:%02x not found in %d\n",
551
namebuf, dev->bus->number, dev->devfn, pcic->pcic_imdim);
557
if (i >= 0 && i < 4) {
558
ivec = readw(pcic->pcic_regs+PCI_INT_SELECT_LO);
559
real_irq = ivec >> (i << 2) & 0xF;
560
} else if (i >= 4 && i < 8) {
561
ivec = readw(pcic->pcic_regs+PCI_INT_SELECT_HI);
562
real_irq = ivec >> ((i-4) << 2) & 0xF;
563
} else { /* Corrupted map */
564
printk("PCIC: BAD PIN %d\n", i); for (;;) {}
566
/* P3 */ /* printk("PCIC: device %s pin %d ivec 0x%x irq %x\n", namebuf, i, ivec, dev->irq); */
568
/* real_irq means PROM did not bother to program the upper
569
* half of PCIC. This happens on JS-E with PROM 3.11, for instance.
571
if (real_irq == 0 || p->force) {
572
if (p->irq == 0 || p->irq >= 15) { /* Corrupted map */
573
printk("PCIC: BAD IRQ %d\n", p->irq); for (;;) {}
575
printk("PCIC: setting irq %d at pin %d for device %02x:%02x\n",
576
p->irq, p->pin, dev->bus->number, dev->devfn);
581
ivec = readw(pcic->pcic_regs+PCI_INT_SELECT_HI);
582
ivec &= ~(0xF << ((i - 4) << 2));
583
ivec |= p->irq << ((i - 4) << 2);
584
writew(ivec, pcic->pcic_regs+PCI_INT_SELECT_HI);
586
ivec = readw(pcic->pcic_regs+PCI_INT_SELECT_LO);
587
ivec &= ~(0xF << (i << 2));
588
ivec |= p->irq << (i << 2);
589
writew(ivec, pcic->pcic_regs+PCI_INT_SELECT_LO);
592
dev->irq = pcic_build_device_irq(NULL, real_irq);
596
* Normally called from {do_}pci_scan_bus...
598
void __devinit pcibios_fixup_bus(struct pci_bus *bus)
601
int i, has_io, has_mem;
603
struct linux_pcic *pcic;
604
/* struct linux_pbm_info* pbm = &pcic->pbm; */
606
struct pcidev_cookie *pcp;
609
printk("pcibios_fixup_bus: no PCIC\n");
615
* Next crud is an equivalent of pbm = pcic_bus_to_pbm(bus);
617
if (bus->number != 0) {
618
printk("pcibios_fixup_bus: nonzero bus 0x%x\n", bus->number);
622
list_for_each_entry(dev, &bus->devices, bus_list) {
625
* Comment from i386 branch:
626
* There are buggy BIOSes that forget to enable I/O and memory
627
* access to PCI devices. We try to fix this, but we need to
628
* be sure that the BIOS didn't forget to assign an address
629
* to the device. [mj]
630
* OBP is a case of such BIOS :-)
632
has_io = has_mem = 0;
634
unsigned long f = dev->resource[i].flags;
635
if (f & IORESOURCE_IO) {
637
} else if (f & IORESOURCE_MEM)
640
pcic_read_config(dev->bus, dev->devfn, PCI_COMMAND, 2, &cmd);
641
if (has_io && !(cmd & PCI_COMMAND_IO)) {
642
printk("PCIC: Enabling I/O for device %02x:%02x\n",
643
dev->bus->number, dev->devfn);
644
cmd |= PCI_COMMAND_IO;
645
pcic_write_config(dev->bus, dev->devfn,
646
PCI_COMMAND, 2, cmd);
648
if (has_mem && !(cmd & PCI_COMMAND_MEMORY)) {
649
printk("PCIC: Enabling memory for device %02x:%02x\n",
650
dev->bus->number, dev->devfn);
651
cmd |= PCI_COMMAND_MEMORY;
652
pcic_write_config(dev->bus, dev->devfn,
653
PCI_COMMAND, 2, cmd);
656
node = pdev_to_pnode(&pcic->pbm, dev);
661
pcp = pci_devcookie_alloc();
662
pcp->pbm = &pcic->pbm;
663
pcp->prom_node = of_find_node_by_phandle(node);
666
/* fixing I/O to look like memory */
667
if ((dev->class>>16) != PCI_BASE_CLASS_BRIDGE)
668
pcic_map_pci_device(pcic, dev, node);
670
pcic_fill_irq(pcic, dev, node);
675
* pcic_pin_to_irq() is exported to bus probing code
678
pcic_pin_to_irq(unsigned int pin, const char *name)
680
struct linux_pcic *pcic = &pcic0;
685
ivec = readw(pcic->pcic_regs+PCI_INT_SELECT_LO);
686
irq = ivec >> (pin << 2) & 0xF;
687
} else if (pin < 8) {
688
ivec = readw(pcic->pcic_regs+PCI_INT_SELECT_HI);
689
irq = ivec >> ((pin-4) << 2) & 0xF;
690
} else { /* Corrupted map */
691
printk("PCIC: BAD PIN %d FOR %s\n", pin, name);
692
for (;;) {} /* XXX Cannot panic properly in case of PROLL */
694
/* P3 */ /* printk("PCIC: dev %s pin %d ivec 0x%x irq %x\n", name, pin, ivec, irq); */
698
/* Makes compiler happy */
699
static volatile int pcic_timer_dummy;
701
static void pcic_clear_clock_irq(void)
703
pcic_timer_dummy = readl(pcic0.pcic_regs+PCI_SYS_LIMIT);
706
static irqreturn_t pcic_timer_handler (int irq, void *h)
708
pcic_clear_clock_irq();
711
update_process_times(user_mode(get_irq_regs()));
716
#define USECS_PER_JIFFY 10000 /* We have 100HZ "standard" timer for sparc */
717
#define TICK_TIMER_LIMIT ((100*1000000/4)/100)
719
u32 pci_gettimeoffset(void)
722
* We divide all by 100
723
* to have microsecond resolution and to avoid overflow
725
unsigned long count =
726
readl(pcic0.pcic_regs+PCI_SYS_COUNTER) & ~PCI_SYS_COUNTER_OVERFLOW;
727
count = ((count/100)*USECS_PER_JIFFY) / (TICK_TIMER_LIMIT/100);
732
void __init pci_time_init(void)
734
struct linux_pcic *pcic = &pcic0;
739
do_arch_gettimeoffset = pci_gettimeoffset;
743
writel (TICK_TIMER_LIMIT, pcic->pcic_regs+PCI_SYS_LIMIT);
744
/* PROM should set appropriate irq */
745
v = readb(pcic->pcic_regs+PCI_COUNTER_IRQ);
746
timer_irq = PCI_COUNTER_IRQ_SYS(v);
747
writel (PCI_COUNTER_IRQ_SET(timer_irq, 0),
748
pcic->pcic_regs+PCI_COUNTER_IRQ);
749
irq = pcic_build_device_irq(NULL, timer_irq);
750
err = request_irq(irq, pcic_timer_handler,
751
IRQF_TIMER, "timer", NULL);
753
prom_printf("time_init: unable to attach IRQ%d\n", timer_irq);
761
static void watchdog_reset() {
762
writeb(0, pcic->pcic_regs+PCI_SYS_STATUS);
767
* Other archs parse arguments here.
769
char * __devinit pcibios_setup(char *str)
774
resource_size_t pcibios_align_resource(void *data, const struct resource *res,
775
resource_size_t size, resource_size_t align)
780
int pcibios_enable_device(struct pci_dev *pdev, int mask)
788
void pcic_nmi(unsigned int pend, struct pt_regs *regs)
791
pend = flip_dword(pend);
793
if (!pcic_speculative || (pend & PCI_SYS_INT_PENDING_PIO) == 0) {
795
* XXX On CP-1200 PCI #SERR may happen, we do not know
796
* what to do about it yet.
798
printk("Aiee, NMI pend 0x%x pc 0x%x spec %d, hanging\n",
799
pend, (int)regs->pc, pcic_speculative);
802
pcic_speculative = 0;
804
regs->pc = regs->npc;
808
static inline unsigned long get_irqmask(int irq_nr)
813
static void pcic_mask_irq(struct irq_data *data)
815
unsigned long mask, flags;
817
mask = (unsigned long)data->chip_data;
818
local_irq_save(flags);
819
writel(mask, pcic0.pcic_regs+PCI_SYS_INT_TARGET_MASK_SET);
820
local_irq_restore(flags);
823
static void pcic_unmask_irq(struct irq_data *data)
825
unsigned long mask, flags;
827
mask = (unsigned long)data->chip_data;
828
local_irq_save(flags);
829
writel(mask, pcic0.pcic_regs+PCI_SYS_INT_TARGET_MASK_CLEAR);
830
local_irq_restore(flags);
833
static unsigned int pcic_startup_irq(struct irq_data *data)
836
pcic_unmask_irq(data);
840
static struct irq_chip pcic_irq = {
842
.irq_startup = pcic_startup_irq,
843
.irq_mask = pcic_mask_irq,
844
.irq_unmask = pcic_unmask_irq,
847
unsigned int pcic_build_device_irq(struct platform_device *op,
848
unsigned int real_irq)
854
mask = get_irqmask(real_irq);
858
irq = irq_alloc(real_irq, real_irq);
862
irq_set_chip_and_handler_name(irq, &pcic_irq,
863
handle_level_irq, "PCIC");
864
irq_set_chip_data(irq, (void *)mask);
871
static void pcic_load_profile_irq(int cpu, unsigned int limit)
873
printk("PCIC: unimplemented code: FILE=%s LINE=%d", __FILE__, __LINE__);
876
void __init sun4m_pci_init_IRQ(void)
878
sparc_irq_config.build_device_irq = pcic_build_device_irq;
880
BTFIXUPSET_CALL(clear_clock_irq, pcic_clear_clock_irq, BTFIXUPCALL_NORM);
881
BTFIXUPSET_CALL(load_profile_irq, pcic_load_profile_irq, BTFIXUPCALL_NORM);
884
int pcibios_assign_resource(struct pci_dev *pdev, int resource)
890
* This probably belongs here rather than ioport.c because
891
* we do not want this crud linked into SBus kernels.
892
* Also, think for a moment about likes of floppy.c that
893
* include architecture specific parts. They may want to redefine ins/outs.
895
* We do not use horrible macros here because we want to
896
* advance pointer by sizeof(size).
898
void outsb(unsigned long addr, const void *src, unsigned long count)
902
outb(*(const char *)src, addr);
907
EXPORT_SYMBOL(outsb);
909
void outsw(unsigned long addr, const void *src, unsigned long count)
913
outw(*(const short *)src, addr);
918
EXPORT_SYMBOL(outsw);
920
void outsl(unsigned long addr, const void *src, unsigned long count)
924
outl(*(const long *)src, addr);
929
EXPORT_SYMBOL(outsl);
931
void insb(unsigned long addr, void *dst, unsigned long count)
935
*(unsigned char *)dst = inb(addr);
942
void insw(unsigned long addr, void *dst, unsigned long count)
946
*(unsigned short *)dst = inw(addr);
953
void insl(unsigned long addr, void *dst, unsigned long count)
958
* XXX I am sure we are in for an unaligned trap here.
960
*(unsigned long *)dst = inl(addr);
967
subsys_initcall(pcic_init);