diff options
Diffstat (limited to 'sys/x86/x86/local_apic.c')
| -rw-r--r-- | sys/x86/x86/local_apic.c | 40 |
1 files changed, 39 insertions, 1 deletions
diff --git a/sys/x86/x86/local_apic.c b/sys/x86/x86/local_apic.c index f40026bb3037..7fec4f6cd69a 100644 --- a/sys/x86/x86/local_apic.c +++ b/sys/x86/x86/local_apic.c @@ -59,6 +59,7 @@ __FBSDID("$FreeBSD$"); #include <machine/frame.h> #include <machine/intr_machdep.h> #include <machine/apicvar.h> +#include <machine/mca.h> #include <machine/md_var.h> #include <machine/smp.h> #include <machine/specialreg.h> @@ -130,6 +131,7 @@ static struct lvt lvts[LVT_MAX + 1] = { { 1, 1, 0, 1, APIC_LVT_DM_FIXED, APIC_ERROR_INT }, /* Error */ { 1, 1, 1, 1, APIC_LVT_DM_NMI, 0 }, /* PMC */ { 1, 1, 1, 1, APIC_LVT_DM_FIXED, APIC_THERMAL_INT }, /* Thermal */ + { 1, 1, 1, 1, APIC_LVT_DM_FIXED, APIC_CMC_INT }, /* CMCI */ }; static inthand_t *ioint_handlers[] = { @@ -235,6 +237,9 @@ lapic_init(vm_paddr_t addr) setidt(APIC_ERROR_INT, IDTVEC(errorint), SDT_APIC, SEL_KPL, GSEL_APIC); /* XXX: Thermal interrupt */ + + /* Local APIC CMCI. */ + setidt(APIC_CMC_INT, IDTVEC(cmcint), SDT_APICT, SEL_KPL, GSEL_APIC); } /* @@ -260,7 +265,7 @@ lapic_create(u_int apic_id, int boot_cpu) */ lapics[apic_id].la_present = 1; lapics[apic_id].la_id = apic_id; - for (i = 0; i < LVT_MAX; i++) { + for (i = 0; i <= LVT_MAX; i++) { lapics[apic_id].la_lvts[i] = lvts[i]; lapics[apic_id].la_lvts[i].lvt_active = 0; } @@ -290,6 +295,7 @@ lapic_dump(const char* str) printf(" timer: 0x%08x therm: 0x%08x err: 0x%08x pmc: 0x%08x\n", lapic->lvt_timer, lapic->lvt_thermal, lapic->lvt_error, lapic->lvt_pcint); + printf(" cmci: 0x%08x\n", lapic->lvt_cmci); } void @@ -341,6 +347,10 @@ lapic_setup(int boot) /* XXX: Thermal LVT */ + /* Program the CMCI LVT entry if present. */ + if (maxlvt >= LVT_CMCI) + lapic->lvt_cmci = lvt_mode(la, LVT_CMCI, lapic->lvt_cmci); + intr_restore(eflags); } @@ -838,6 +848,34 @@ lapic_timer_enable_intr(void) } void +lapic_handle_cmc(void) +{ + + lapic_eoi(); + cmc_intr(); +} + +/* + * Called from the mca_init() to activate the CMC interrupt if this CPU is + * responsible for monitoring any MC banks for CMC events. Since mca_init() + * is called prior to lapic_setup() during boot, this just needs to unmask + * this CPU's LVT_CMCI entry. + */ +void +lapic_enable_cmc(void) +{ + u_int apic_id; + + apic_id = PCPU_GET(apic_id); + KASSERT(lapics[apic_id].la_present, + ("%s: missing APIC %u", __func__, apic_id)); + lapics[apic_id].la_lvts[LVT_CMCI].lvt_masked = 0; + lapics[apic_id].la_lvts[LVT_CMCI].lvt_active = 1; + if (bootverbose) + printf("lapic%u: CMCI unmasked\n", apic_id); +} + +void lapic_handle_error(void) { u_int32_t esr; |