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Preliminary support for Xspuriousint.

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Preliminary support for stopcpus()/restartcpus().
This commit is contained in:
fsmp 1997-07-06 23:59:31 +00:00
parent ef1c697eb8
commit 5542a98e9b
1 changed files with 16 additions and 4 deletions
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20
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 1.6 1997/05/31 03:29:57 fsmp Exp $
* $Id: mpapic.c,v 1.5 1997/07/06 23:56:12 smp Exp smp $
*/
#include "opt_smp.h"
@ -33,10 +33,12 @@
#include <machine/smp.h>
#include <machine/mpapic.h>
#include <machine/smptests.h> /** TEST_LOPRIO, TEST_IPI */
#include <machine/smptests.h> /** TEST_LOPRIO, TEST_IPI, TEST_CPUSTOP */
#include <machine/cpufunc.h>
#include <machine/segments.h>
#include <i386/isa/intr_machdep.h> /* Xspuriousint() */
/* EISA Edge/Level trigger control registers */
#define ELCR0 0x4d0 /* eisa irq 0-7 */
#define ELCR1 0x4d1 /* eisa irq 8-15 */
@ -87,6 +89,13 @@ apic_initialize(int is_bsp)
temp = lapic.svr;
temp |= APIC_SVR_SWEN; /* software enable APIC */
temp &= ~APIC_SVR_FOCUS;/* enable 'focus processor' */
#if defined(TEST_CPUSTOP)
if ((XSPURIOUSINT_OFFSET & 0xf) != 0xf)
panic("bad XSPURIOUSINT_OFFSET: 0x%08x", XSPURIOUSINT_OFFSET);
temp &= ~0xff; /* clear vector field */
temp |= XSPURIOUSINT_OFFSET;
printf(">>> SVR: 0x%08x\n", temp);
#endif /* TEST_CPUSTOP */
#if 0
temp |= 0x20; /** FIXME: 2f == strayIRQ15 */
#endif
@ -632,9 +641,12 @@ selected_apic_ipi(u_int target, int vector, int delivery_mode)
icr_hi = lapic.icr_hi & ~APIC_ID_MASK;
icr_hi |= (CPU_TO_ID(x) << 24);
lapic.icr_hi = icr_hi;
#if 1
db_printf( "icr_hi: 0x%08x\n", lapic.icr_hi );
#endif
/* send the IPI */
if (apic_ipi(APIC_DEST_DESTFLD, vector, delivery_mode) == -1)
if (apic_ipi(APIC_DEST_DESTFLD, vector,
delivery_mode) == -1)
status |= (1 << x);
}
return status;