zephyr/include/drivers/interrupt_controller
Zide Chen d27f6cb5eb interrupt_controller: program local APIC LDR register for xAPIC
If IO APIC is in logical destination mode, local APICs compare their
logical APIC ID defined in LDR (Logical Destination Register) with
the destination code sent with the interrupt to determine whether or not
to accept the incoming interrupt.

This patch programs LDR in xAPIC mode to support IO APIC logical mode.

The local APIC ID from local APIC ID register can't be used as the
'logical APIC ID' because LAPIC ID may not be consecutive numbers hence
it makes it impossible for LDR to encode 8 IDs within 8 bits.

This patch chooses 0 for BSP, and for APs, cpu_number which is the index
to x86_cpuboot[], which ultimately assigned in z_smp_init[].

Signed-off-by: Zide Chen <zide.chen@intel.com>
2020-05-08 22:32:39 -04:00
..
exti_stm32.h drivers/interrup_controller: stm32: stm32_exti_enable could be void 2020-02-05 12:00:36 +01:00
gic.h drivers: add GIC V3 driver 2020-05-07 14:22:53 +02:00
ioapic.h
loapic.h interrupt_controller: program local APIC LDR register for xAPIC 2020-05-08 22:32:39 -04:00
sam0_eic.h include/drivers: Move 2 specific intc headers into public location 2019-12-18 21:49:46 +01:00
sysapic.h arch/x86: inline x2APIC EOI 2019-09-12 09:53:45 +08:00