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Disregard the values for polarity and trigger mode in the MP config table

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for ISA interrupts where the IOAPIC interrupt pin number is the same as
the ISA interrupt number (i.e. partial backout of previous commit)
This commit is contained in:
Tor Egge 1998-04-19 23:19:20 +00:00
parent 59bad7c53b
commit 9d66d1d696
1 changed files with 18 additions and 7 deletions
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25
sys/i386/i386/mpapic.c
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@ -22,7 +22,7 @@
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*
* $Id: mpapic.c,v 1.28 1998/03/03 19:54:49 tegge Exp $
* $Id: mpapic.c,v 1.29 1998/04/01 21:07:34 tegge Exp $
*/
#include "opt_smp.h"
@ -164,7 +164,7 @@ io_apic_setup(int apic)
if (apic == 0) {
maxpin = REDIRCNT_IOAPIC(apic); /* pins in APIC */
for (pin = 0; pin < maxpin; ++pin) {
int bus;
int bus, bustype;
/* we only deal with vectored INTs here */
if (apic_int_type(apic, pin) != 0)
@ -174,12 +174,23 @@ io_apic_setup(int apic)
bus = apic_src_bus_id(apic, pin);
if (bus == -1)
continue;
bustype = apic_bus_type(bus);
flags = DEFAULT_FLAGS;
level = trigger(apic, pin, &flags);
if (level == 1)
apic_pin_trigger[apic] |= (1 << pin);
polarity(apic, pin, &flags, level);
/* the "ISA" type INTerrupts */
if ((bustype == ISA) &&
(pin < IOAPIC_ISA_INTS) &&
(isa_apic_pin(pin) == pin)) {
flags = DEFAULT_ISA_FLAGS;
}
/* PCI or other bus */
else {
flags = DEFAULT_FLAGS;
level = trigger(apic, pin, &flags);
if (level == 1)
apic_pin_trigger[apic] |= (1 << pin);
polarity(apic, pin, &flags, level);
}
/* program the appropriate registers */
select = pin * 2 + IOAPIC_REDTBL0; /* register */