2 * APIC driver for the IBM NUMAQ 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/numaq/apicdef.h>
15 #include <linux/smp.h>
16 #include <asm/numaq/apic.h>
17 #include <asm/numaq/ipi.h>
18 #include <asm/numaq/mpparse.h>
19 #include <asm/numaq/wakecpu.h>
20 #include <asm/numaq.h>
22 static int __numaq_mps_oem_check(struct mpc_table
*mpc
, char *oem
, char *productid
)
24 numaq_mps_oem_check(mpc
, oem
, productid
);
28 static int probe_numaq(void)
30 /* already know from get_memcfg_numaq() */
34 static void numaq_vector_allocation_domain(int cpu
, cpumask_t
*retmask
)
36 /* Careful. Some cpus do not strictly honor the set of cpus
37 * specified in the interrupt destination when using lowest
38 * priority interrupt delivery mode.
40 * In particular there was a hyperthreading cpu observed to
41 * deliver interrupts to the wrong hyperthread when only one
42 * hyperthread was specified in the interrupt desitination.
44 *retmask
= (cpumask_t
){ { [0] = APIC_ALL_CPUS
, } };
47 static void numaq_setup_portio_remap(void)
49 int num_quads
= num_online_nodes();
54 printk("Remapping cross-quad port I/O for %d quads\n", num_quads
);
55 xquad_portio
= ioremap(XQUAD_PORTIO_BASE
, num_quads
*XQUAD_PORTIO_QUAD
);
56 printk("xquad_portio vaddr 0x%08lx, len %08lx\n",
57 (u_long
) xquad_portio
, (u_long
) num_quads
*XQUAD_PORTIO_QUAD
);
60 struct genapic apic_numaq
= {
64 .acpi_madt_oem_check
= NULL
,
65 .apic_id_registered
= numaq_apic_id_registered
,
67 .irq_delivery_mode
= dest_LowestPrio
,
68 /* physical delivery on LOCAL quad: */
71 .target_cpus
= numaq_target_cpus
,
73 .dest_logical
= APIC_DEST_LOGICAL
,
74 .check_apicid_used
= numaq_check_apicid_used
,
75 .check_apicid_present
= numaq_check_apicid_present
,
77 .vector_allocation_domain
= numaq_vector_allocation_domain
,
78 .init_apic_ldr
= numaq_init_apic_ldr
,
80 .ioapic_phys_id_map
= numaq_ioapic_phys_id_map
,
81 .setup_apic_routing
= numaq_setup_apic_routing
,
82 .multi_timer_check
= numaq_multi_timer_check
,
83 .apicid_to_node
= numaq_apicid_to_node
,
84 .cpu_to_logical_apicid
= numaq_cpu_to_logical_apicid
,
85 .cpu_present_to_apicid
= numaq_cpu_present_to_apicid
,
86 .apicid_to_cpu_present
= numaq_apicid_to_cpu_present
,
87 .setup_portio_remap
= numaq_setup_portio_remap
,
88 .check_phys_apicid_present
= numaq_check_phys_apicid_present
,
89 .enable_apic_mode
= NULL
,
90 .phys_pkg_id
= numaq_phys_pkg_id
,
91 .mps_oem_check
= __numaq_mps_oem_check
,
93 .get_apic_id
= numaq_get_apic_id
,
95 .apic_id_mask
= 0x0F << 24,
97 .cpu_mask_to_apicid
= numaq_cpu_mask_to_apicid
,
98 .cpu_mask_to_apicid_and
= numaq_cpu_mask_to_apicid_and
,
100 .send_IPI_mask
= numaq_send_IPI_mask
,
101 .send_IPI_mask_allbutself
= NULL
,
102 .send_IPI_allbutself
= numaq_send_IPI_allbutself
,
103 .send_IPI_all
= numaq_send_IPI_all
,
104 .send_IPI_self
= NULL
,
107 .trampoline_phys_low
= NUMAQ_TRAMPOLINE_PHYS_LOW
,
108 .trampoline_phys_high
= NUMAQ_TRAMPOLINE_PHYS_HIGH
,
109 .wait_for_init_deassert
= wait_for_init_deassert
,
110 .smp_callin_clear_local_apic
= smp_callin_clear_local_apic
,
111 .store_NMI_vector
= store_NMI_vector
,
112 .restore_NMI_vector
= restore_NMI_vector
,
113 .inquire_remote_apic
= inquire_remote_apic
,