/* * APIC driver for the Unisys ES7000 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/es7000/apicdef.h> #include <linux/smp.h> #include <asm/es7000/apic.h> #include <asm/es7000/ipi.h> #include <asm/es7000/mpparse.h> #include <asm/es7000/wakecpu.h> static int probe_es7000(void) { /* probed later in mptable/ACPI hooks */ return 0; } extern void es7000_sw_apic(void); static void __init enable_apic_mode(void) { es7000_sw_apic(); return; } static __init int mps_oem_check(struct mp_config_table *mpc, char *oem, char *productid) { if (mpc->mpc_oemptr) { struct mp_config_oemtable *oem_table = (struct mp_config_oemtable *)mpc->mpc_oemptr; if (!strncmp(oem, "UNISYS", 6)) return parse_unisys_oem((char *)oem_table); } return 0; } #ifdef CONFIG_ACPI /* Hook from generic ACPI tables.c */ static int __init acpi_madt_oem_check(char *oem_id, char *oem_table_id) { unsigned long oem_addr = 0; int check_dsdt; int ret = 0; /* check dsdt at first to avoid clear fix_map for oem_addr */ check_dsdt = es7000_check_dsdt(); if (!find_unisys_acpi_oem_table(&oem_addr)) { if (check_dsdt) ret = parse_unisys_oem((char *)oem_addr); else { setup_unisys(); ret = 1; } /* * we need to unmap it */ unmap_unisys_acpi_oem_table(oem_addr); } return ret; } #else static int __init acpi_madt_oem_check(char *oem_id, char *oem_table_id) { return 0; } #endif 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 __initdata_refok apic_es7000 = APIC_INIT("es7000", probe_es7000);