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Removed several "magic numbers".

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This commit is contained in:
Steve Passe 1997-07-15 04:56:58 +00:00
parent 4ec664e4c1
commit 253db5c717
Notes: svn2git 2020-12-20 02:59:44 +00:00 
svn path=/head/; revision=27411
1 changed files with 3 additions and 13 deletions
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16
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 1.11 1997/07/15 00:09:53 smp Exp smp $
* $Id: mpapic.c,v 1.12 1997/07/15 02:51:19 fsmp Exp $
*/
#include "opt_smp.h"
@ -53,8 +53,6 @@ volatile ioapic_t *ioapic[NAPIC];
/*
* Enable APIC, configure interrupts.
*
* XXX FIXME: remove the magic numbers.
*/
void
apic_initialize(void)
@ -63,7 +61,7 @@ apic_initialize(void)
/* setup LVT1 as ExtINT */
temp = lapic.lvt_lint0;
temp &= 0xfffe58ff; /* preserve undefined fields */
temp &= ~(APIC_LVT_M | APIC_LVT_TM | APIC_LVT_IIPP | APIC_LVT_DM);
if (cpuid == 0)
temp |= 0x00000700; /* process ExtInts */
else
@ -72,7 +70,7 @@ apic_initialize(void)
/* setup LVT2 as NMI, masked till later... */
temp = lapic.lvt_lint1;
temp &= 0xfffe58ff; /* preserve undefined fields */
temp &= ~(APIC_LVT_M | APIC_LVT_TM | APIC_LVT_IIPP | APIC_LVT_DM);
temp |= 0x00010400; /* masked, edge trigger, active hi */
lapic.lvt_lint1 = temp;
@ -82,15 +80,7 @@ apic_initialize(void)
temp &= ~APIC_TPR_PRIO; /* clear priority field */
#if defined(TEST_LOPRIO)
#if 1
/* The new order of startup since private pages makes this possible. */
temp |= LOPRIO_LEVEL; /* allow INT arbitration */
#else
if (cpuid == 0)
temp |= 0x10; /* allow INT arbitration */
else
temp |= 0xff; /* disallow INT arbitration */
#endif
#endif /* TEST_LOPRIO */
lapic.tpr = temp;