This source file includes following definitions.
- bigsmp_get_apic_id
- bigsmp_apic_id_registered
- bigsmp_check_apicid_used
- bigsmp_early_logical_apicid
- bigsmp_init_apic_ldr
- bigsmp_setup_apic_routing
- bigsmp_cpu_present_to_apicid
- bigsmp_ioapic_phys_id_map
- bigsmp_check_phys_apicid_present
- bigsmp_phys_pkg_id
- bigsmp_send_IPI_allbutself
- bigsmp_send_IPI_all
- hp_ht_bigsmp
- probe_bigsmp
- generic_bigsmp_probe
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6
7 #include <linux/cpumask.h>
8 #include <linux/dmi.h>
9 #include <linux/smp.h>
10
11 #include <asm/apic.h>
12
13 #include "local.h"
14
15 static unsigned bigsmp_get_apic_id(unsigned long x)
16 {
17 return (x >> 24) & 0xFF;
18 }
19
20 static int bigsmp_apic_id_registered(void)
21 {
22 return 1;
23 }
24
25 static bool bigsmp_check_apicid_used(physid_mask_t *map, int apicid)
26 {
27 return false;
28 }
29
30 static int bigsmp_early_logical_apicid(int cpu)
31 {
32
33 return early_per_cpu(x86_cpu_to_apicid, cpu);
34 }
35
36
37
38
39
40 static void bigsmp_init_apic_ldr(void)
41 {
42 }
43
44 static void bigsmp_setup_apic_routing(void)
45 {
46 printk(KERN_INFO
47 "Enabling APIC mode: Physflat. Using %d I/O APICs\n",
48 nr_ioapics);
49 }
50
51 static int bigsmp_cpu_present_to_apicid(int mps_cpu)
52 {
53 if (mps_cpu < nr_cpu_ids)
54 return (int) per_cpu(x86_bios_cpu_apicid, mps_cpu);
55
56 return BAD_APICID;
57 }
58
59 static void bigsmp_ioapic_phys_id_map(physid_mask_t *phys_map, physid_mask_t *retmap)
60 {
61
62 physids_promote(0xFFL, retmap);
63 }
64
65 static int bigsmp_check_phys_apicid_present(int phys_apicid)
66 {
67 return 1;
68 }
69
70 static int bigsmp_phys_pkg_id(int cpuid_apic, int index_msb)
71 {
72 return cpuid_apic >> index_msb;
73 }
74
75 static void bigsmp_send_IPI_allbutself(int vector)
76 {
77 default_send_IPI_mask_allbutself_phys(cpu_online_mask, vector);
78 }
79
80 static void bigsmp_send_IPI_all(int vector)
81 {
82 default_send_IPI_mask_sequence_phys(cpu_online_mask, vector);
83 }
84
85 static int dmi_bigsmp;
86
87 static int hp_ht_bigsmp(const struct dmi_system_id *d)
88 {
89 printk(KERN_NOTICE "%s detected: force use of apic=bigsmp\n", d->ident);
90 dmi_bigsmp = 1;
91
92 return 0;
93 }
94
95
96 static const struct dmi_system_id bigsmp_dmi_table[] = {
97 { hp_ht_bigsmp, "HP ProLiant DL760 G2",
98 { DMI_MATCH(DMI_BIOS_VENDOR, "HP"),
99 DMI_MATCH(DMI_BIOS_VERSION, "P44-"),
100 }
101 },
102
103 { hp_ht_bigsmp, "HP ProLiant DL740",
104 { DMI_MATCH(DMI_BIOS_VENDOR, "HP"),
105 DMI_MATCH(DMI_BIOS_VERSION, "P47-"),
106 }
107 },
108 { }
109 };
110
111 static int probe_bigsmp(void)
112 {
113 if (def_to_bigsmp)
114 dmi_bigsmp = 1;
115 else
116 dmi_check_system(bigsmp_dmi_table);
117
118 return dmi_bigsmp;
119 }
120
121 static struct apic apic_bigsmp __ro_after_init = {
122
123 .name = "bigsmp",
124 .probe = probe_bigsmp,
125 .acpi_madt_oem_check = NULL,
126 .apic_id_valid = default_apic_id_valid,
127 .apic_id_registered = bigsmp_apic_id_registered,
128
129 .irq_delivery_mode = dest_Fixed,
130
131 .irq_dest_mode = 0,
132
133 .disable_esr = 1,
134 .dest_logical = 0,
135 .check_apicid_used = bigsmp_check_apicid_used,
136
137 .init_apic_ldr = bigsmp_init_apic_ldr,
138
139 .ioapic_phys_id_map = bigsmp_ioapic_phys_id_map,
140 .setup_apic_routing = bigsmp_setup_apic_routing,
141 .cpu_present_to_apicid = bigsmp_cpu_present_to_apicid,
142 .apicid_to_cpu_present = physid_set_mask_of_physid,
143 .check_phys_apicid_present = bigsmp_check_phys_apicid_present,
144 .phys_pkg_id = bigsmp_phys_pkg_id,
145
146 .get_apic_id = bigsmp_get_apic_id,
147 .set_apic_id = NULL,
148
149 .calc_dest_apicid = apic_default_calc_apicid,
150
151 .send_IPI = default_send_IPI_single_phys,
152 .send_IPI_mask = default_send_IPI_mask_sequence_phys,
153 .send_IPI_mask_allbutself = NULL,
154 .send_IPI_allbutself = bigsmp_send_IPI_allbutself,
155 .send_IPI_all = bigsmp_send_IPI_all,
156 .send_IPI_self = default_send_IPI_self,
157
158 .inquire_remote_apic = default_inquire_remote_apic,
159
160 .read = native_apic_mem_read,
161 .write = native_apic_mem_write,
162 .eoi_write = native_apic_mem_write,
163 .icr_read = native_apic_icr_read,
164 .icr_write = native_apic_icr_write,
165 .wait_icr_idle = native_apic_wait_icr_idle,
166 .safe_wait_icr_idle = native_safe_apic_wait_icr_idle,
167
168 .x86_32_early_logical_apicid = bigsmp_early_logical_apicid,
169 };
170
171 void __init generic_bigsmp_probe(void)
172 {
173 unsigned int cpu;
174
175 if (!probe_bigsmp())
176 return;
177
178 apic = &apic_bigsmp;
179
180 for_each_possible_cpu(cpu) {
181 if (early_per_cpu(x86_cpu_to_logical_apicid,
182 cpu) == BAD_APICID)
183 continue;
184 early_per_cpu(x86_cpu_to_logical_apicid, cpu) =
185 bigsmp_early_logical_apicid(cpu);
186 }
187
188 pr_info("Overriding APIC driver with %s\n", apic_bigsmp.name);
189 }
190
191 apic_driver(apic_bigsmp);