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1 | /* |
1 | /* |
2 | * Copyright (C) 2005 Jakub Jermar |
2 | * Copyright (C) 2005 Jakub Jermar |
3 | * All rights reserved. |
3 | * All rights reserved. |
4 | * |
4 | * |
5 | * Redistribution and use in source and binary forms, with or without |
5 | * Redistribution and use in source and binary forms, with or without |
6 | * modification, are permitted provided that the following conditions |
6 | * modification, are permitted provided that the following conditions |
7 | * are met: |
7 | * are met: |
8 | * |
8 | * |
9 | * - Redistributions of source code must retain the above copyright |
9 | * - Redistributions of source code must retain the above copyright |
10 | * notice, this list of conditions and the following disclaimer. |
10 | * notice, this list of conditions and the following disclaimer. |
11 | * - Redistributions in binary form must reproduce the above copyright |
11 | * - Redistributions in binary form must reproduce the above copyright |
12 | * notice, this list of conditions and the following disclaimer in the |
12 | * notice, this list of conditions and the following disclaimer in the |
13 | * documentation and/or other materials provided with the distribution. |
13 | * documentation and/or other materials provided with the distribution. |
14 | * - The name of the author may not be used to endorse or promote products |
14 | * - The name of the author may not be used to endorse or promote products |
15 | * derived from this software without specific prior written permission. |
15 | * derived from this software without specific prior written permission. |
16 | * |
16 | * |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
27 | */ |
27 | */ |
28 | 28 | ||
29 | #include <arch/types.h> |
29 | #include <arch/types.h> |
- | 30 | #include <typedefs.h> |
|
30 | #include <arch/acpi/acpi.h> |
31 | #include <arch/acpi/acpi.h> |
31 | #include <arch/acpi/madt.h> |
32 | #include <arch/acpi/madt.h> |
32 | #include <arch/smp/apic.h> |
33 | #include <arch/smp/apic.h> |
- | 34 | #include <arch/smp/smp.h> |
|
33 | #include <mm/page.h> |
35 | #include <mm/page.h> |
34 | #include <panic.h> |
36 | #include <panic.h> |
- | 37 | #include <debug.h> |
|
- | 38 | #include <config.h> |
|
35 | 39 | ||
36 | struct acpi_madt *acpi_madt = NULL; |
40 | struct acpi_madt *acpi_madt = NULL; |
37 | 41 | ||
38 | #ifdef __SMP__ |
42 | #ifdef __SMP__ |
39 | 43 | ||
40 | /* |
44 | /* |
41 | * NOTE: it is currently not completely clear to the authors of SPARTAN whether |
45 | * NOTE: it is currently not completely clear to the authors of SPARTAN whether |
42 | * MADT can exist in such a form that entries of the same type are not consecutive. |
46 | * MADT can exist in such a form that entries of the same type are not consecutive. |
43 | * Because of this uncertainity, some entry types are explicitly checked for |
47 | * Because of this uncertainity, some entry types are explicitly checked for |
44 | * being consecutive with other entries of the same kind. |
48 | * being consecutive with other entries of the same kind. |
45 | */ |
49 | */ |
46 | 50 | ||
47 | static void madt_l_apic_entry(struct madt_l_apic *la, __u8 prev_type); |
51 | static void madt_l_apic_entry(struct madt_l_apic *la, __u8 prev_type); |
48 | static void madt_io_apic_entry(struct madt_io_apic *ioa, __u8 prev_type); |
52 | static void madt_io_apic_entry(struct madt_io_apic *ioa, __u8 prev_type); |
49 | 53 | ||
50 | struct madt_l_apic *madt_l_apic_entries = NULL; |
54 | struct madt_l_apic *madt_l_apic_entries = NULL; |
51 | struct madt_io_apic *madt_io_apic_entries = NULL; |
55 | struct madt_io_apic *madt_io_apic_entries = NULL; |
52 | 56 | ||
53 | int madt_l_apic_entry_cnt = 0; |
57 | int madt_l_apic_entry_cnt = 0; |
54 | int madt_io_apic_entry_cnt = 0; |
58 | int madt_io_apic_entry_cnt = 0; |
55 | 59 | ||
56 | char *entry[] = { |
60 | char *entry[] = { |
57 | "L_APIC", |
61 | "L_APIC", |
58 | "IO_APIC", |
62 | "IO_APIC", |
59 | "INTR_SRC_OVRD", |
63 | "INTR_SRC_OVRD", |
60 | "NMI_SRC", |
64 | "NMI_SRC", |
61 | "L_APIC_NMI", |
65 | "L_APIC_NMI", |
62 | "L_APIC_ADDR_OVRD", |
66 | "L_APIC_ADDR_OVRD", |
63 | "IO_SAPIC", |
67 | "IO_SAPIC", |
64 | "L_SAPIC", |
68 | "L_SAPIC", |
65 | "PLATFORM_INTR_SRC" |
69 | "PLATFORM_INTR_SRC" |
66 | }; |
70 | }; |
67 | 71 | ||
- | 72 | /* |
|
- | 73 | * ACPI MADT Implementation of SMP configuration interface. |
|
- | 74 | */ |
|
- | 75 | static count_t madt_cpu_count(void); |
|
- | 76 | static bool madt_cpu_enabled(index_t i); |
|
- | 77 | static bool madt_cpu_bootstrap(index_t i); |
|
- | 78 | static __u8 madt_cpu_apic_id(index_t i); |
|
- | 79 | ||
- | 80 | struct smp_config_operations madt_config_operations = { |
|
- | 81 | .cpu_count = madt_cpu_count, |
|
- | 82 | .cpu_enabled = madt_cpu_enabled, |
|
- | 83 | .cpu_bootstrap = madt_cpu_bootstrap, |
|
- | 84 | .cpu_apic_id = madt_cpu_apic_id |
|
- | 85 | }; |
|
- | 86 | ||
- | 87 | static count_t madt_cpu_count(void) |
|
- | 88 | { |
|
- | 89 | return madt_l_apic_entry_cnt; |
|
- | 90 | } |
|
- | 91 | ||
- | 92 | static bool madt_cpu_enabled(index_t i) |
|
- | 93 | { |
|
- | 94 | ASSERT(i < madt_l_apic_entry_cnt); |
|
- | 95 | return madt_l_apic_entries[i].flags & 0x1; |
|
- | 96 | } |
|
- | 97 | ||
- | 98 | static bool madt_cpu_bootstrap(index_t i) |
|
- | 99 | { |
|
- | 100 | ASSERT(i < madt_l_apic_entry_cnt); |
|
- | 101 | return madt_l_apic_entries[i].apic_id == l_apic_id(); |
|
- | 102 | } |
|
- | 103 | ||
- | 104 | static __u8 madt_cpu_apic_id(index_t i) |
|
- | 105 | { |
|
- | 106 | ASSERT(i < madt_l_apic_entry_cnt); |
|
- | 107 | return madt_l_apic_entries[i].apic_id; |
|
- | 108 | } |
|
- | 109 | ||
68 | void acpi_madt_parse(void) |
110 | void acpi_madt_parse(void) |
69 | { |
111 | { |
70 | struct madt_apic_header *end = (struct madt_apic_header *) (((__u8 *) acpi_madt) + acpi_madt->header.length); |
112 | struct madt_apic_header *end = (struct madt_apic_header *) (((__u8 *) acpi_madt) + acpi_madt->header.length); |
71 | struct madt_apic_header *h = &acpi_madt->apic_header[0]; |
113 | struct madt_apic_header *h = &acpi_madt->apic_header[0]; |
72 | __u8 prev_type = 0; /* used to detect incosecutive entries */ |
114 | __u8 prev_type = 0; /* used to detect incosecutive entries */ |
73 | 115 | ||
74 | 116 | ||
75 | l_apic = (__u32 *) acpi_madt->l_apic_address; |
117 | l_apic = (__u32 *) acpi_madt->l_apic_address; |
76 | 118 | ||
77 | while (h < end) { |
119 | while (h < end) { |
78 | switch (h->type) { |
120 | switch (h->type) { |
79 | case MADT_L_APIC: |
121 | case MADT_L_APIC: |
80 | madt_l_apic_entry((struct madt_l_apic *) h, prev_type); |
122 | madt_l_apic_entry((struct madt_l_apic *) h, prev_type); |
81 | break; |
123 | break; |
82 | case MADT_IO_APIC: |
124 | case MADT_IO_APIC: |
83 | madt_io_apic_entry((struct madt_io_apic *) h, prev_type); |
125 | madt_io_apic_entry((struct madt_io_apic *) h, prev_type); |
84 | break; |
126 | break; |
85 | case MADT_INTR_SRC_OVRD: |
127 | case MADT_INTR_SRC_OVRD: |
86 | case MADT_NMI_SRC: |
128 | case MADT_NMI_SRC: |
87 | case MADT_L_APIC_NMI: |
129 | case MADT_L_APIC_NMI: |
88 | case MADT_L_APIC_ADDR_OVRD: |
130 | case MADT_L_APIC_ADDR_OVRD: |
89 | case MADT_IO_SAPIC: |
131 | case MADT_IO_SAPIC: |
90 | case MADT_L_SAPIC: |
132 | case MADT_L_SAPIC: |
91 | case MADT_PLATFORM_INTR_SRC: |
133 | case MADT_PLATFORM_INTR_SRC: |
92 | printf("MADT: skipping %s entry (type=%d)\n", entry[h->type], h->type); |
134 | printf("MADT: skipping %s entry (type=%d)\n", entry[h->type], h->type); |
93 | break; |
135 | break; |
94 | 136 | ||
95 | default: |
137 | default: |
96 | if (h->type >= MADT_RESERVED_SKIP_BEGIN && h->type <= MADT_RESERVED_SKIP_END) { |
138 | if (h->type >= MADT_RESERVED_SKIP_BEGIN && h->type <= MADT_RESERVED_SKIP_END) { |
97 | printf("MADT: skipping reserved entry (type=%d)\n", h->type); |
139 | printf("MADT: skipping reserved entry (type=%d)\n", h->type); |
98 | } |
140 | } |
99 | if (h->type >= MADT_RESERVED_OEM_BEGIN) { |
141 | if (h->type >= MADT_RESERVED_OEM_BEGIN) { |
100 | printf("MADT: skipping OEM entry (type=%d)\n", h->type); |
142 | printf("MADT: skipping OEM entry (type=%d)\n", h->type); |
101 | } |
143 | } |
102 | break; |
144 | break; |
103 | } |
145 | } |
104 | prev_type = h->type; |
146 | prev_type = h->type; |
105 | h = (struct madt_apic_header *) (((__u8 *) h) + h->length); |
147 | h = (struct madt_apic_header *) (((__u8 *) h) + h->length); |
106 | } |
148 | } |
107 | 149 | ||
- | 150 | if (madt_l_apic_entry_cnt) |
|
- | 151 | config.cpu_count = madt_l_apic_entry_cnt; |
|
108 | } |
152 | } |
109 | 153 | ||
110 | void madt_l_apic_entry(struct madt_l_apic *la, __u8 prev_type) |
154 | void madt_l_apic_entry(struct madt_l_apic *la, __u8 prev_type) |
111 | { |
155 | { |
112 | /* check for consecutiveness */ |
156 | /* check for consecutiveness */ |
113 | if (madt_l_apic_entry_cnt && prev_type != MADT_L_APIC) |
157 | if (madt_l_apic_entry_cnt && prev_type != MADT_L_APIC) |
114 | panic("%s entries are not consecuitve\n", entry[MADT_L_APIC]); |
158 | panic("%s entries are not consecuitve\n", entry[MADT_L_APIC]); |
115 | 159 | ||
116 | if (!madt_l_apic_entry_cnt++) |
160 | if (!madt_l_apic_entry_cnt++) |
117 | madt_l_apic_entries = la; |
161 | madt_l_apic_entries = la; |
118 | 162 | ||
119 | if (!(la->flags & 0x1)) { |
163 | if (!(la->flags & 0x1)) { |
120 | /* Processor is unusable, skip it. */ |
164 | /* Processor is unusable, skip it. */ |
121 | return; |
165 | return; |
122 | } |
166 | } |
123 | 167 | ||
124 | apic_id_mask |= 1<<la->apic_id; |
168 | apic_id_mask |= 1<<la->apic_id; |
125 | } |
169 | } |
126 | 170 | ||
127 | void madt_io_apic_entry(struct madt_io_apic *ioa, __u8 prev_type) |
171 | void madt_io_apic_entry(struct madt_io_apic *ioa, __u8 prev_type) |
128 | { |
172 | { |
129 | /* check for consecutiveness */ |
173 | /* check for consecutiveness */ |
130 | if (madt_io_apic_entry_cnt && prev_type != MADT_IO_APIC) |
174 | if (madt_io_apic_entry_cnt && prev_type != MADT_IO_APIC) |
131 | panic("%s entries are not consecuitve\n", entry[MADT_IO_APIC]); |
175 | panic("%s entries are not consecuitve\n", entry[MADT_IO_APIC]); |
132 | 176 | ||
133 | if (!madt_io_apic_entry_cnt++) { |
177 | if (!madt_io_apic_entry_cnt++) { |
134 | madt_io_apic_entries = ioa; |
178 | madt_io_apic_entries = ioa; |
135 | io_apic = (__u32 *) ioa->io_apic_address; |
179 | io_apic = (__u32 *) ioa->io_apic_address; |
136 | map_page_to_frame((__address) io_apic, (__address) io_apic, PAGE_NOT_CACHEABLE, 0); |
180 | map_page_to_frame((__address) io_apic, (__address) io_apic, PAGE_NOT_CACHEABLE, 0); |
137 | } |
181 | } |
138 | else { |
182 | else { |
139 | /* currently not supported */ |
183 | /* currently not supported */ |
140 | return; |
184 | return; |
141 | } |
185 | } |
142 | } |
186 | } |
143 | 187 | ||
144 | 188 | ||
145 | #endif /* __SMP__ */ |
189 | #endif /* __SMP__ */ |
146 | 190 |