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Move ia64_sapics and ia64_sapic_count from interrupt.c to sapic.c

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and declare them extern in interrupt.c. This eliminates the need
for ia64_add_sapic(), which is called from sapic.c.
While here, reformat ia64_enable() in interrupt.c to improve
indentation and add a sysctl (machdep.apic) to dump the I/O APIC
entries currently programmed into all I/O APICs. The latter can
help analyze interrupt problems.
Note that the sysctl is not intended as a userland (software)
interface. It may be changed in the future to include counters
so that vmstat -i can make use of it. It may also be removed...
This commit is contained in:
marcel 2003-01-06 02:09:08 +00:00
parent a2f9918dd0
commit 007da5a53d
2 changed files with 59 additions and 24 deletions
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25
sys/ia64/ia64/interrupt.c
View File

@ -207,11 +207,12 @@ struct ia64_intr {
volatile long *cntp; /* interrupt counter */
};
static struct sapic *ia64_sapics[16]; /* XXX make this resizable */
static int ia64_sapic_count;
static struct mtx ia64_intrs_lock;
static struct ia64_intr *ia64_intrs[256];
extern struct sapic *ia64_sapics[];
extern int ia64_sapic_count;
static void
ithds_init(void *dummy)
{
@ -220,13 +221,6 @@ ithds_init(void *dummy)
}
SYSINIT(ithds_init, SI_SUB_INTR, SI_ORDER_SECOND, ithds_init, NULL);
void
ia64_add_sapic(struct sapic *sa)
{
ia64_sapics[ia64_sapic_count++] = sa;
}
static void
ia64_enable(int vector)
{
@ -235,14 +229,11 @@ ia64_enable(int vector)
irq = vector - IA64_HARDWARE_IRQ_BASE;
for (i = 0; i < ia64_sapic_count; i++) {
struct sapic *sa = ia64_sapics[i];
if (irq >= sa->sa_base && irq <= sa->sa_limit)
sapic_enable(sa, irq - sa->sa_base, vector,
(irq < 16
? SAPIC_TRIGGER_EDGE
: SAPIC_TRIGGER_LEVEL),
(irq < 16
? SAPIC_POLARITY_HIGH
: SAPIC_POLARITY_LOW));
if (irq < sa->sa_base || irq > sa->sa_limit)
continue;
sapic_enable(sa, irq - sa->sa_base, vector,
(irq < 16) ? SAPIC_TRIGGER_EDGE : SAPIC_TRIGGER_LEVEL,
(irq < 16) ? SAPIC_POLARITY_HIGH : SAPIC_POLARITY_LOW);
}
}

58
sys/ia64/ia64/sapic.c
View File

@ -37,9 +37,18 @@
#include <sys/bus.h>
#include <machine/intr.h>
#include <machine/pal.h>
#include <sys/sysctl.h>
static MALLOC_DEFINE(M_SAPIC, "sapic", "I/O SAPIC devices");
static int sysctl_machdep_apic(SYSCTL_HANDLER_ARGS);
SYSCTL_OID(_machdep, OID_AUTO, apic, CTLTYPE_STRING|CTLFLAG_RD,
NULL, 0, sysctl_machdep_apic, "A", "(x)APIC redirection table entries");
struct sapic *ia64_sapics[16]; /* XXX make this resizable */
int ia64_sapic_count;
u_int64_t ia64_lapic_address = PAL_PIB_DEFAULT_ADDR;
struct sapic_rte {
@ -78,11 +87,8 @@ sapic_write(struct sapic *sa, int which, u_int32_t value)
ia64_mf();
}
#ifdef DDB
static void
sapic_read_rte(struct sapic *sa, int which,
struct sapic_rte *rte)
sapic_read_rte(struct sapic *sa, int which, struct sapic_rte *rte)
{
u_int32_t *p = (u_int32_t *) rte;
register_t c;
@ -93,8 +99,6 @@ sapic_read_rte(struct sapic *sa, int which,
intr_restore(c);
}
#endif
static void
sapic_write_rte(struct sapic *sa, int which,
struct sapic_rte *rte)
@ -125,7 +129,7 @@ sapic_create(int id, int base, u_int64_t address)
max = (sapic_read(sa, SAPIC_VERSION) >> 16) & 0xff;
sa->sa_limit = base + max;
ia64_add_sapic(sa);
ia64_sapics[ia64_sapic_count++] = sa;
return sa;
}
@ -156,6 +160,46 @@ sapic_eoi(struct sapic *sa, int vector)
ia64_mf();
}
static int
sysctl_machdep_apic(SYSCTL_HANDLER_ARGS)
{
char buf[80];
struct sapic_rte rte;
struct sapic *sa;
int apic, count, error, index, len;
len = sprintf(buf, "\n APIC Idx: Id,EId : RTE\n");
error = SYSCTL_OUT(req, buf, len);
if (error)
return (error);
for (apic = 0; apic < ia64_sapic_count; apic++) {
sa = ia64_sapics[apic];
count = sa->sa_limit - sa->sa_base + 1;
for (index = 0; index < count; index++) {
sapic_read_rte(sa, index, &rte);
if (rte.rte_mask != 0)
continue;
len = sprintf(buf,
" 0x%02x %3d: (%02x,%02x): %3d %d %d %s %s %s %s %s\n",
sa->sa_id, index,
rte.rte_destination_id, rte.rte_destination_eid,
rte.rte_vector, rte.rte_delivery_mode,
rte.rte_destination_mode,
rte.rte_delivery_status ? "DS" : " ",
rte.rte_polarity ? "low-active " : "high-active",
rte.rte_rirr ? "RIRR" : " ",
rte.rte_trigger_mode ? "level" : "edge ",
rte.rte_flushen ? "F" : " ");
error = SYSCTL_OUT(req, buf, len);
if (error)
return (error);
}
}
return (0);
}
#ifdef DDB
#include <ddb/ddb.h>