return 0;
irb = (struct irb *) __LC_IRB;
/* Store interrupt response block to lowcore. */
- if (tsch (tpi_info->irq, irb) != 0)
+ if (tsch (tpi_info->schid, irb) != 0)
/* Not status pending or not operational. */
return 1;
sch = (struct subchannel *)(unsigned long)tpi_info->intparm;
else
sch->lpm = 0;
- stsch (sch->irq, &sch->schib);
+ stsch (sch->schid, &sch->schib);
CIO_MSG_EVENT(0, "cio_start: 'not oper' status for "
- "subchannel %04x!\n", sch->irq);
+ "subchannel %04x!\n", sch->schid.sch_no);
sprintf(dbf_text, "no%s", sch->dev.bus_id);
CIO_TRACE_EVENT(0, dbf_text);
CIO_HEX_EVENT(0, &sch->schib, sizeof (struct schib));
sch->orb.key = key >> 4;
/* issue "Start Subchannel" */
sch->orb.cpa = (__u32) __pa (cpa);
- ccode = ssch (sch->irq, &sch->orb);
+ ccode = ssch (sch->schid, &sch->orb);
/* process condition code */
sprintf (dbf_txt, "ccode:%d", ccode);
CIO_TRACE_EVENT (4, "resIO");
CIO_TRACE_EVENT (4, sch->dev.bus_id);
- ccode = rsch (sch->irq);
+ ccode = rsch (sch->schid);
sprintf (dbf_txt, "ccode:%d", ccode);
CIO_TRACE_EVENT (4, dbf_txt);
/*
* Issue "Halt subchannel" and process condition code
*/
- ccode = hsch (sch->irq);
+ ccode = hsch (sch->schid);
sprintf (dbf_txt, "ccode:%d", ccode);
CIO_TRACE_EVENT (2, dbf_txt);
/*
* Issue "Clear subchannel" and process condition code
*/
- ccode = csch (sch->irq);
+ ccode = csch (sch->schid);
sprintf (dbf_txt, "ccode:%d", ccode);
CIO_TRACE_EVENT (2, dbf_txt);
CIO_TRACE_EVENT (2, "cancelIO");
CIO_TRACE_EVENT (2, sch->dev.bus_id);
- ccode = xsch (sch->irq);
+ ccode = xsch (sch->schid);
sprintf (dbf_txt, "ccode:%d", ccode);
CIO_TRACE_EVENT (2, dbf_txt);
switch (ccode) {
case 0: /* success */
/* Update information in scsw. */
- stsch (sch->irq, &sch->schib);
+ stsch (sch->schid, &sch->schib);
return 0;
case 1: /* status pending */
return -EBUSY;
ret = 0;
for (retry = 0; retry < 5; retry++) {
- ccode = msch_err (sch->irq, &sch->schib);
+ ccode = msch_err (sch->schid, &sch->schib);
if (ccode < 0) /* -EIO if msch gets a program check. */
return ccode;
switch (ccode) {
CIO_TRACE_EVENT (2, "ensch");
CIO_TRACE_EVENT (2, sch->dev.bus_id);
- ccode = stsch (sch->irq, &sch->schib);
+ ccode = stsch (sch->schid, &sch->schib);
if (ccode)
return -ENODEV;
*/
sch->schib.pmcw.csense = 0;
if (ret == 0) {
- stsch (sch->irq, &sch->schib);
+ stsch (sch->schid, &sch->schib);
if (sch->schib.pmcw.ena)
break;
}
if (ret == -EBUSY) {
struct irb irb;
- if (tsch(sch->irq, &irb) != 0)
+ if (tsch(sch->schid, &irb) != 0)
break;
}
}
CIO_TRACE_EVENT (2, "dissch");
CIO_TRACE_EVENT (2, sch->dev.bus_id);
- ccode = stsch (sch->irq, &sch->schib);
+ ccode = stsch (sch->schid, &sch->schib);
if (ccode == 3) /* Not operational. */
return -ENODEV;
*/
break;
if (ret == 0) {
- stsch (sch->irq, &sch->schib);
+ stsch (sch->schid, &sch->schib);
if (!sch->schib.pmcw.ena)
break;
}
* -ENODEV for subchannels with invalid device number or blacklisted devices
*/
int
-cio_validate_subchannel (struct subchannel *sch, unsigned int irq)
+cio_validate_subchannel (struct subchannel *sch, struct subchannel_id schid)
{
char dbf_txt[15];
int ccode;
- sprintf (dbf_txt, "valsch%x", irq);
+ sprintf (dbf_txt, "valsch%x", schid.sch_no);
CIO_TRACE_EVENT (4, dbf_txt);
/* Nuke all fields. */
spin_lock_init(&sch->lock);
/* Set a name for the subchannel */
- snprintf (sch->dev.bus_id, BUS_ID_SIZE, "0.0.%04x", irq);
+ snprintf (sch->dev.bus_id, BUS_ID_SIZE, "0.0.%04x", schid.sch_no);
/*
* The first subchannel that is not-operational (ccode==3)
* indicates that there aren't any more devices available.
*/
- sch->irq = irq;
- ccode = stsch (irq, &sch->schib);
+ ccode = stsch (schid, &sch->schib);
if (ccode)
return -ENXIO;
+ sch->schid = schid;
/* Copy subchannel type from path management control word. */
sch->st = sch->schib.pmcw.st;
CIO_DEBUG(KERN_INFO, 0,
"Subchannel %04X reports "
"non-I/O subchannel type %04X\n",
- sch->irq, sch->st);
+ sch->schid.sch_no, sch->st);
/* We stop here for non-io subchannels. */
return sch->st;
}
CIO_DEBUG(KERN_INFO, 0,
"Detected device %04X on subchannel %04X"
" - PIM = %02X, PAM = %02X, POM = %02X\n",
- sch->schib.pmcw.dev, sch->irq, sch->schib.pmcw.pim,
+ sch->schib.pmcw.dev, sch->schid.sch_no, sch->schib.pmcw.pim,
sch->schib.pmcw.pam, sch->schib.pmcw.pom);
/*
if (sch)
spin_lock(&sch->lock);
/* Store interrupt response block to lowcore. */
- if (tsch (tpi_info->irq, irb) == 0 && sch) {
+ if (tsch (tpi_info->schid, irb) == 0 && sch) {
/* Keep subchannel information word up to date. */
memcpy (&sch->schib.scsw, &irb->scsw,
sizeof (irb->scsw));
static int
cio_console_irq(void)
{
- int irq;
+ struct subchannel_id schid;
+ init_subchannel_id(&schid);
if (console_irq != -1) {
/* VM provided us with the irq number of the console. */
- if (stsch(console_irq, &console_subchannel.schib) != 0 ||
+ schid.sch_no = console_irq;
+ if (stsch(schid, &console_subchannel.schib) != 0 ||
!console_subchannel.schib.pmcw.dnv)
return -1;
console_devno = console_subchannel.schib.pmcw.dev;
} else if (console_devno != -1) {
/* At least the console device number is known. */
- for (irq = 0; irq < __MAX_SUBCHANNELS; irq++) {
- if (stsch(irq, &console_subchannel.schib) != 0)
+ do {
+ if (stsch(schid, &console_subchannel.schib) != 0)
break;
if (console_subchannel.schib.pmcw.dnv &&
console_subchannel.schib.pmcw.dev ==
console_devno) {
- console_irq = irq;
+ console_irq = schid.sch_no;
break;
}
- }
+ } while (schid.sch_no++ < __MAX_SUBCHANNEL);
if (console_irq == -1)
return -1;
} else {
cio_probe_console(void)
{
int irq, ret;
+ struct subchannel_id schid;
if (xchg(&console_subchannel_in_use, 1) != 0)
return ERR_PTR(-EBUSY);
return ERR_PTR(-ENODEV);
}
memset(&console_subchannel, 0, sizeof(struct subchannel));
- ret = cio_validate_subchannel(&console_subchannel, irq);
+ init_subchannel_id(&schid);
+ schid.sch_no = irq;
+ ret = cio_validate_subchannel(&console_subchannel, schid);
if (ret) {
console_subchannel_in_use = 0;
return ERR_PTR(-ENODEV);
/* Bah... hack to catch console special sausages. */
int
-cio_is_console(int irq)
+cio_is_console(struct subchannel_id schid)
{
if (!console_subchannel_in_use)
return 0;
- return (irq == console_subchannel.irq);
+ return schid_equal(&schid, &console_subchannel.schid);
}
struct subchannel *
#endif
static inline int
-__disable_subchannel_easy(unsigned int schid, struct schib *schib)
+__disable_subchannel_easy(struct subchannel_id schid, struct schib *schib)
{
int retry, cc;
}
static inline int
-__clear_subchannel_easy(unsigned int schid)
+__clear_subchannel_easy(struct subchannel_id schid)
{
int retry;
struct tpi_info ti;
if (tpi(&ti)) {
- tsch(ti.irq, (struct irb *)__LC_IRB);
- if (ti.irq == schid)
+ tsch(ti.schid, (struct irb *)__LC_IRB);
+ if (schid_equal(&ti.schid, &schid))
return 0;
}
udelay(100);
void
clear_all_subchannels(void)
{
- unsigned int schid;
+ struct subchannel_id schid;
local_irq_disable();
- for (schid=0;schid<=highest_subchannel;schid++) {
+ init_subchannel_id(&schid);
+ do {
struct schib schib;
if (stsch(schid, &schib))
break; /* break out of the loop */
stsch(schid, &schib);
__disable_subchannel_easy(schid, &schib);
}
- }
+ } while (schid.sch_no++ < __MAX_SUBCHANNEL);
}
/* Make sure all subchannels are quiet before we re-ipl an lpar. */