2 * APIC driver for the Unisys ES7000 chipset.
4 #define APIC_DEFINITION 1
5 #include <linux/threads.h>
6 #include <linux/cpumask.h>
7 #include <asm/mpspec.h>
8 #include <asm/genapic.h>
9 #include <asm/fixmap.h>
10 #include <asm/apicdef.h>
11 #include <linux/kernel.h>
12 #include <linux/string.h>
13 #include <linux/init.h>
14 #include <asm/es7000/apicdef.h>
15 #include <linux/smp.h>
16 #include <asm/es7000/apic.h>
17 #include <asm/es7000/ipi.h>
18 #include <asm/es7000/mpparse.h>
19 #include <asm/mach-default/mach_wakecpu.h>
21 void __init es7000_update_genapic_to_cluster(void)
23 genapic->target_cpus = target_cpus_cluster;
24 genapic->int_delivery_mode = INT_DELIVERY_MODE_CLUSTER;
25 genapic->int_dest_mode = INT_DEST_MODE_CLUSTER;
26 genapic->no_balance_irq = NO_BALANCE_IRQ_CLUSTER;
28 genapic->init_apic_ldr = init_apic_ldr_cluster;
30 genapic->cpu_mask_to_apicid = cpu_mask_to_apicid_cluster;
33 static int probe_es7000(void)
35 /* probed later in mptable/ACPI hooks */
39 extern void es7000_sw_apic(void);
40 static void __init enable_apic_mode(void)
46 static __init int mps_oem_check(struct mp_config_table *mpc, char *oem,
49 if (mpc->mpc_oemptr) {
50 struct mp_config_oemtable *oem_table =
51 (struct mp_config_oemtable *)mpc->mpc_oemptr;
52 if (!strncmp(oem, "UNISYS", 6))
53 return parse_unisys_oem((char *)oem_table);
59 /* Hook from generic ACPI tables.c */
60 static int __init acpi_madt_oem_check(char *oem_id, char *oem_table_id)
62 unsigned long oem_addr = 0;
66 /* check dsdt at first to avoid clear fix_map for oem_addr */
67 check_dsdt = es7000_check_dsdt();
69 if (!find_unisys_acpi_oem_table(&oem_addr)) {
71 ret = parse_unisys_oem((char *)oem_addr);
79 unmap_unisys_acpi_oem_table(oem_addr);
84 static int __init acpi_madt_oem_check(char *oem_id, char *oem_table_id)
90 static void vector_allocation_domain(int cpu, cpumask_t *retmask)
92 /* Careful. Some cpus do not strictly honor the set of cpus
93 * specified in the interrupt destination when using lowest
94 * priority interrupt delivery mode.
96 * In particular there was a hyperthreading cpu observed to
97 * deliver interrupts to the wrong hyperthread when only one
98 * hyperthread was specified in the interrupt desitination.
100 *retmask = (cpumask_t){ { [0] = APIC_ALL_CPUS, } };
103 struct genapic __initdata_refok apic_es7000 = APIC_INIT("es7000", probe_es7000);