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 apic
->target_cpus
= target_cpus_cluster
;
24 apic
->irq_delivery_mode
= INT_DELIVERY_MODE_CLUSTER
;
25 apic
->irq_dest_mode
= INT_DEST_MODE_CLUSTER
;
26 apic
->no_balance_irq
= NO_BALANCE_IRQ_CLUSTER
;
28 apic
->init_apic_ldr
= init_apic_ldr_cluster
;
30 apic
->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)
47 mps_oem_check(struct mpc_table
*mpc
, char *oem
, char *productid
)
50 struct mpc_oemtable
*oem_table
=
51 (struct mpc_oemtable
*)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
es7000_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
es7000_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 apic_es7000
= {
106 .probe
= probe_es7000
,
107 .acpi_madt_oem_check
= es7000_acpi_madt_oem_check
,
108 .apic_id_registered
= es7000_apic_id_registered
,
110 .irq_delivery_mode
= dest_Fixed
,
111 /* phys delivery to target CPUs: */
114 .target_cpus
= es7000_target_cpus
,
117 .check_apicid_used
= es7000_check_apicid_used
,
118 .check_apicid_present
= es7000_check_apicid_present
,
120 .no_balance_irq
= NO_BALANCE_IRQ
,
121 .no_ioapic_check
= 0,
123 .vector_allocation_domain
= vector_allocation_domain
,
124 .init_apic_ldr
= init_apic_ldr
,
126 .ioapic_phys_id_map
= ioapic_phys_id_map
,
127 .setup_apic_routing
= setup_apic_routing
,
128 .multi_timer_check
= multi_timer_check
,
129 .apicid_to_node
= apicid_to_node
,
130 .cpu_to_logical_apicid
= cpu_to_logical_apicid
,
131 .cpu_present_to_apicid
= cpu_present_to_apicid
,
132 .apicid_to_cpu_present
= apicid_to_cpu_present
,
133 .setup_portio_remap
= setup_portio_remap
,
134 .check_phys_apicid_present
= check_phys_apicid_present
,
135 .enable_apic_mode
= enable_apic_mode
,
136 .phys_pkg_id
= phys_pkg_id
,
137 .mps_oem_check
= mps_oem_check
,
139 .get_apic_id
= get_apic_id
,
141 .apic_id_mask
= APIC_ID_MASK
,
143 .cpu_mask_to_apicid
= cpu_mask_to_apicid
,
144 .cpu_mask_to_apicid_and
= cpu_mask_to_apicid_and
,
146 .send_IPI_mask
= send_IPI_mask
,
147 .send_IPI_mask_allbutself
= NULL
,
148 .send_IPI_allbutself
= send_IPI_allbutself
,
149 .send_IPI_all
= send_IPI_all
,
150 .send_IPI_self
= NULL
,
153 .trampoline_phys_low
= TRAMPOLINE_PHYS_LOW
,
154 .trampoline_phys_high
= TRAMPOLINE_PHYS_HIGH
,
155 .wait_for_init_deassert
= wait_for_init_deassert
,
156 .smp_callin_clear_local_apic
= smp_callin_clear_local_apic
,
157 .store_NMI_vector
= store_NMI_vector
,
158 .restore_NMI_vector
= restore_NMI_vector
,
159 .inquire_remote_apic
= inquire_remote_apic
,