| /* |
| * APIC driver for the IBM "Summit" chipset. |
| */ |
| #define APIC_DEFINITION 1 |
| #include <linux/threads.h> |
| #include <linux/cpumask.h> |
| #include <asm/mpspec.h> |
| #include <asm/genapic.h> |
| #include <asm/fixmap.h> |
| #include <asm/apicdef.h> |
| #include <linux/kernel.h> |
| #include <linux/string.h> |
| #include <linux/init.h> |
| #include <asm/summit/apicdef.h> |
| #include <linux/smp.h> |
| #include <asm/summit/apic.h> |
| #include <asm/summit/ipi.h> |
| #include <asm/summit/mpparse.h> |
| |
| static int probe_summit(void) |
| { |
| /* probed later in mptable/ACPI hooks */ |
| return 0; |
| } |
| |
| static cpumask_t vector_allocation_domain(int cpu) |
| { |
| /* Careful. Some cpus do not strictly honor the set of cpus |
| * specified in the interrupt destination when using lowest |
| * priority interrupt delivery mode. |
| * |
| * In particular there was a hyperthreading cpu observed to |
| * deliver interrupts to the wrong hyperthread when only one |
| * hyperthread was specified in the interrupt desitination. |
| */ |
| cpumask_t domain = { { [0] = APIC_ALL_CPUS, } }; |
| return domain; |
| } |
| |
| struct genapic apic_summit = APIC_INIT("summit", probe_summit); |
