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x86: set ->trampoline_phys_low/high on 64-bit too
[linux-2.6-omap-h63xx.git] / arch / x86 / kernel / genx2apic_phys.c
1 #include <linux/threads.h>
2 #include <linux/cpumask.h>
3 #include <linux/string.h>
4 #include <linux/kernel.h>
5 #include <linux/ctype.h>
6 #include <linux/init.h>
7 #include <linux/dmar.h>
8
9 #include <asm/smp.h>
10 #include <asm/ipi.h>
11 #include <asm/genapic.h>
12
13 static int x2apic_phys;
14
15 static int set_x2apic_phys_mode(char *arg)
16 {
17         x2apic_phys = 1;
18         return 0;
19 }
20 early_param("x2apic_phys", set_x2apic_phys_mode);
21
22 static int x2apic_acpi_madt_oem_check(char *oem_id, char *oem_table_id)
23 {
24         if (cpu_has_x2apic && x2apic_phys)
25                 return 1;
26
27         return 0;
28 }
29
30 /* Start with all IRQs pointing to boot CPU.  IRQ balancing will shift them. */
31
32 static const struct cpumask *x2apic_target_cpus(void)
33 {
34         return cpumask_of(0);
35 }
36
37 static void x2apic_vector_allocation_domain(int cpu, struct cpumask *retmask)
38 {
39         cpumask_clear(retmask);
40         cpumask_set_cpu(cpu, retmask);
41 }
42
43 static void __x2apic_send_IPI_dest(unsigned int apicid, int vector,
44                                    unsigned int dest)
45 {
46         unsigned long cfg;
47
48         cfg = __prepare_ICR(0, vector, dest);
49
50         /*
51          * send the IPI.
52          */
53         x2apic_icr_write(cfg, apicid);
54 }
55
56 static void x2apic_send_IPI_mask(const struct cpumask *mask, int vector)
57 {
58         unsigned long query_cpu;
59         unsigned long flags;
60
61         local_irq_save(flags);
62         for_each_cpu(query_cpu, mask) {
63                 __x2apic_send_IPI_dest(per_cpu(x86_cpu_to_apicid, query_cpu),
64                                        vector, APIC_DEST_PHYSICAL);
65         }
66         local_irq_restore(flags);
67 }
68
69 static void
70  x2apic_send_IPI_mask_allbutself(const struct cpumask *mask, int vector)
71 {
72         unsigned long this_cpu = smp_processor_id();
73         unsigned long query_cpu;
74         unsigned long flags;
75
76         local_irq_save(flags);
77         for_each_cpu(query_cpu, mask) {
78                 if (query_cpu != this_cpu)
79                         __x2apic_send_IPI_dest(
80                                 per_cpu(x86_cpu_to_apicid, query_cpu),
81                                 vector, APIC_DEST_PHYSICAL);
82         }
83         local_irq_restore(flags);
84 }
85
86 static void x2apic_send_IPI_allbutself(int vector)
87 {
88         unsigned long this_cpu = smp_processor_id();
89         unsigned long query_cpu;
90         unsigned long flags;
91
92         local_irq_save(flags);
93         for_each_online_cpu(query_cpu) {
94                 if (query_cpu == this_cpu)
95                         continue;
96                 __x2apic_send_IPI_dest(per_cpu(x86_cpu_to_apicid, query_cpu),
97                                        vector, APIC_DEST_PHYSICAL);
98         }
99         local_irq_restore(flags);
100 }
101
102 static void x2apic_send_IPI_all(int vector)
103 {
104         x2apic_send_IPI_mask(cpu_online_mask, vector);
105 }
106
107 static int x2apic_apic_id_registered(void)
108 {
109         return 1;
110 }
111
112 static unsigned int x2apic_cpu_mask_to_apicid(const struct cpumask *cpumask)
113 {
114         /*
115          * We're using fixed IRQ delivery, can only return one phys APIC ID.
116          * May as well be the first.
117          */
118         int cpu = cpumask_first(cpumask);
119
120         if ((unsigned)cpu < nr_cpu_ids)
121                 return per_cpu(x86_cpu_to_apicid, cpu);
122         else
123                 return BAD_APICID;
124 }
125
126 static unsigned int
127 x2apic_cpu_mask_to_apicid_and(const struct cpumask *cpumask,
128                               const struct cpumask *andmask)
129 {
130         int cpu;
131
132         /*
133          * We're using fixed IRQ delivery, can only return one phys APIC ID.
134          * May as well be the first.
135          */
136         for_each_cpu_and(cpu, cpumask, andmask) {
137                 if (cpumask_test_cpu(cpu, cpu_online_mask))
138                         break;
139         }
140
141         if (cpu < nr_cpu_ids)
142                 return per_cpu(x86_cpu_to_apicid, cpu);
143
144         return BAD_APICID;
145 }
146
147 static unsigned int x2apic_phys_get_apic_id(unsigned long x)
148 {
149         return x;
150 }
151
152 static unsigned long set_apic_id(unsigned int id)
153 {
154         return id;
155 }
156
157 static int x2apic_phys_pkg_id(int initial_apicid, int index_msb)
158 {
159         return current_cpu_data.initial_apicid >> index_msb;
160 }
161
162 static void x2apic_send_IPI_self(int vector)
163 {
164         apic_write(APIC_SELF_IPI, vector);
165 }
166
167 static void init_x2apic_ldr(void)
168 {
169 }
170
171 struct genapic apic_x2apic_phys = {
172
173         .name                           = "physical x2apic",
174         .probe                          = NULL,
175         .acpi_madt_oem_check            = x2apic_acpi_madt_oem_check,
176         .apic_id_registered             = x2apic_apic_id_registered,
177
178         .irq_delivery_mode              = dest_Fixed,
179         .irq_dest_mode                  = 0, /* physical */
180
181         .target_cpus                    = x2apic_target_cpus,
182         .disable_esr                    = 0,
183         .dest_logical                   = 0,
184         .check_apicid_used              = NULL,
185         .check_apicid_present           = NULL,
186
187         .vector_allocation_domain       = x2apic_vector_allocation_domain,
188         .init_apic_ldr                  = init_x2apic_ldr,
189
190         .ioapic_phys_id_map             = NULL,
191         .setup_apic_routing             = NULL,
192         .multi_timer_check              = NULL,
193         .apicid_to_node                 = NULL,
194         .cpu_to_logical_apicid          = NULL,
195         .cpu_present_to_apicid          = default_cpu_present_to_apicid,
196         .apicid_to_cpu_present          = NULL,
197         .setup_portio_remap             = NULL,
198         .check_phys_apicid_present      = default_check_phys_apicid_present,
199         .enable_apic_mode               = NULL,
200         .phys_pkg_id                    = x2apic_phys_pkg_id,
201         .mps_oem_check                  = NULL,
202
203         .get_apic_id                    = x2apic_phys_get_apic_id,
204         .set_apic_id                    = set_apic_id,
205         .apic_id_mask                   = 0xFFFFFFFFu,
206
207         .cpu_mask_to_apicid             = x2apic_cpu_mask_to_apicid,
208         .cpu_mask_to_apicid_and         = x2apic_cpu_mask_to_apicid_and,
209
210         .send_IPI_mask                  = x2apic_send_IPI_mask,
211         .send_IPI_mask_allbutself       = x2apic_send_IPI_mask_allbutself,
212         .send_IPI_allbutself            = x2apic_send_IPI_allbutself,
213         .send_IPI_all                   = x2apic_send_IPI_all,
214         .send_IPI_self                  = x2apic_send_IPI_self,
215
216         .wakeup_cpu                     = NULL,
217         .trampoline_phys_low            = DEFAULT_TRAMPOLINE_PHYS_LOW,
218         .trampoline_phys_high           = DEFAULT_TRAMPOLINE_PHYS_HIGH,
219         .wait_for_init_deassert         = NULL,
220         .smp_callin_clear_local_apic    = NULL,
221         .store_NMI_vector               = NULL,
222         .restore_NMI_vector             = NULL,
223         .inquire_remote_apic            = NULL,
224 };