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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 <typedefs.h> |
31 | #include <genarch/firmware/acpi/acpi.h> |
31 | #include <genarch/acpi/acpi.h> |
32 | #include <genarch/firmware/acpi/madt.h> |
32 | #include <genarch/acpi/madt.h> |
33 | #include <arch/smp/apic.h> |
33 | #include <arch/smp/apic.h> |
34 | #include <arch/smp/smp.h> |
34 | #include <arch/smp/smp.h> |
35 | #include <panic.h> |
35 | #include <panic.h> |
36 | #include <debug.h> |
36 | #include <debug.h> |
37 | #include <config.h> |
37 | #include <config.h> |
38 | #include <print.h> |
38 | #include <print.h> |
39 | #include <mm/heap.h> |
39 | #include <mm/heap.h> |
40 | #include <memstr.h> |
40 | #include <memstr.h> |
41 | #include <sort.h> |
41 | #include <sort.h> |
42 | 42 | ||
43 | struct acpi_madt *acpi_madt = NULL; |
43 | struct acpi_madt *acpi_madt = NULL; |
44 | 44 | ||
45 | #ifdef __SMP__ |
45 | #ifdef __SMP__ |
46 | 46 | ||
47 | static void madt_l_apic_entry(struct madt_l_apic *la, __u32 index); |
47 | static void madt_l_apic_entry(struct madt_l_apic *la, __u32 index); |
48 | static void madt_io_apic_entry(struct madt_io_apic *ioa, __u32 index); |
48 | static void madt_io_apic_entry(struct madt_io_apic *ioa, __u32 index); |
49 | static int madt_cmp(void * a, void * b); |
49 | static int madt_cmp(void * a, void * b); |
50 | 50 | ||
51 | struct madt_l_apic *madt_l_apic_entries = NULL; |
51 | struct madt_l_apic *madt_l_apic_entries = NULL; |
52 | struct madt_io_apic *madt_io_apic_entries = NULL; |
52 | struct madt_io_apic *madt_io_apic_entries = NULL; |
53 | 53 | ||
54 | index_t madt_l_apic_entry_index = 0; |
54 | index_t madt_l_apic_entry_index = 0; |
55 | index_t madt_io_apic_entry_index = 0; |
55 | index_t madt_io_apic_entry_index = 0; |
56 | count_t madt_l_apic_entry_cnt = 0; |
56 | count_t madt_l_apic_entry_cnt = 0; |
57 | count_t madt_io_apic_entry_cnt = 0; |
57 | count_t madt_io_apic_entry_cnt = 0; |
58 | count_t cpu_count = 0; |
58 | count_t cpu_count = 0; |
59 | 59 | ||
60 | struct madt_apic_header * * madt_entries_index = NULL; |
60 | struct madt_apic_header * * madt_entries_index = NULL; |
61 | int madt_entries_index_cnt = 0; |
61 | int madt_entries_index_cnt = 0; |
62 | 62 | ||
63 | char *entry[] = { |
63 | char *entry[] = { |
64 | "L_APIC", |
64 | "L_APIC", |
65 | "IO_APIC", |
65 | "IO_APIC", |
66 | "INTR_SRC_OVRD", |
66 | "INTR_SRC_OVRD", |
67 | "NMI_SRC", |
67 | "NMI_SRC", |
68 | "L_APIC_NMI", |
68 | "L_APIC_NMI", |
69 | "L_APIC_ADDR_OVRD", |
69 | "L_APIC_ADDR_OVRD", |
70 | "IO_SAPIC", |
70 | "IO_SAPIC", |
71 | "L_SAPIC", |
71 | "L_SAPIC", |
72 | "PLATFORM_INTR_SRC" |
72 | "PLATFORM_INTR_SRC" |
73 | }; |
73 | }; |
74 | 74 | ||
75 | /* |
75 | /* |
76 | * ACPI MADT Implementation of SMP configuration interface. |
76 | * ACPI MADT Implementation of SMP configuration interface. |
77 | */ |
77 | */ |
78 | static count_t madt_cpu_count(void); |
78 | static count_t madt_cpu_count(void); |
79 | static bool madt_cpu_enabled(index_t i); |
79 | static bool madt_cpu_enabled(index_t i); |
80 | static bool madt_cpu_bootstrap(index_t i); |
80 | static bool madt_cpu_bootstrap(index_t i); |
81 | static __u8 madt_cpu_apic_id(index_t i); |
81 | static __u8 madt_cpu_apic_id(index_t i); |
82 | 82 | ||
83 | struct smp_config_operations madt_config_operations = { |
83 | struct smp_config_operations madt_config_operations = { |
84 | .cpu_count = madt_cpu_count, |
84 | .cpu_count = madt_cpu_count, |
85 | .cpu_enabled = madt_cpu_enabled, |
85 | .cpu_enabled = madt_cpu_enabled, |
86 | .cpu_bootstrap = madt_cpu_bootstrap, |
86 | .cpu_bootstrap = madt_cpu_bootstrap, |
87 | .cpu_apic_id = madt_cpu_apic_id |
87 | .cpu_apic_id = madt_cpu_apic_id |
88 | }; |
88 | }; |
89 | 89 | ||
90 | static count_t madt_cpu_count(void) |
90 | static count_t madt_cpu_count(void) |
91 | { |
91 | { |
92 | return madt_l_apic_entry_cnt; |
92 | return madt_l_apic_entry_cnt; |
93 | } |
93 | } |
94 | 94 | ||
95 | static bool madt_cpu_enabled(index_t i) |
95 | static bool madt_cpu_enabled(index_t i) |
96 | { |
96 | { |
97 | ASSERT(i < madt_l_apic_entry_cnt); |
97 | ASSERT(i < madt_l_apic_entry_cnt); |
98 | return ((struct madt_l_apic *) madt_entries_index[madt_l_apic_entry_index + i])->flags & 0x1; |
98 | return ((struct madt_l_apic *) madt_entries_index[madt_l_apic_entry_index + i])->flags & 0x1; |
99 | 99 | ||
100 | } |
100 | } |
101 | 101 | ||
102 | static bool madt_cpu_bootstrap(index_t i) |
102 | static bool madt_cpu_bootstrap(index_t i) |
103 | { |
103 | { |
104 | ASSERT(i < madt_l_apic_entry_cnt); |
104 | ASSERT(i < madt_l_apic_entry_cnt); |
105 | return ((struct madt_l_apic *) madt_entries_index[madt_l_apic_entry_index + i])->apic_id == l_apic_id(); |
105 | return ((struct madt_l_apic *) madt_entries_index[madt_l_apic_entry_index + i])->apic_id == l_apic_id(); |
106 | } |
106 | } |
107 | 107 | ||
108 | static __u8 madt_cpu_apic_id(index_t i) |
108 | static __u8 madt_cpu_apic_id(index_t i) |
109 | { |
109 | { |
110 | ASSERT(i < madt_l_apic_entry_cnt); |
110 | ASSERT(i < madt_l_apic_entry_cnt); |
111 | return ((struct madt_l_apic *) madt_entries_index[madt_l_apic_entry_index + i])->apic_id; |
111 | return ((struct madt_l_apic *) madt_entries_index[madt_l_apic_entry_index + i])->apic_id; |
112 | } |
112 | } |
113 | 113 | ||
114 | int madt_cmp(void * a, void * b) |
114 | int madt_cmp(void * a, void * b) |
115 | { |
115 | { |
116 | return |
116 | return |
117 | (((struct madt_apic_header *) a)->type > ((struct madt_apic_header *) b)->type) ? |
117 | (((struct madt_apic_header *) a)->type > ((struct madt_apic_header *) b)->type) ? |
118 | 1 : |
118 | 1 : |
119 | ((((struct madt_apic_header *) a)->type < ((struct madt_apic_header *) b)->type) ? -1 : 0); |
119 | ((((struct madt_apic_header *) a)->type < ((struct madt_apic_header *) b)->type) ? -1 : 0); |
120 | } |
120 | } |
121 | 121 | ||
122 | void acpi_madt_parse(void) |
122 | void acpi_madt_parse(void) |
123 | { |
123 | { |
124 | struct madt_apic_header *end = (struct madt_apic_header *) (((__u8 *) acpi_madt) + acpi_madt->header.length); |
124 | struct madt_apic_header *end = (struct madt_apic_header *) (((__u8 *) acpi_madt) + acpi_madt->header.length); |
125 | struct madt_apic_header *h; |
125 | struct madt_apic_header *h; |
126 | 126 | ||
127 | l_apic = (__u32 *) (__native) acpi_madt->l_apic_address; |
127 | l_apic = (__u32 *) (__native) acpi_madt->l_apic_address; |
128 | 128 | ||
129 | /* calculate madt entries */ |
129 | /* calculate madt entries */ |
130 | for (h = &acpi_madt->apic_header[0]; h < end; h = (struct madt_apic_header *) (((__u8 *) h) + h->length)) { |
130 | for (h = &acpi_madt->apic_header[0]; h < end; h = (struct madt_apic_header *) (((__u8 *) h) + h->length)) { |
131 | madt_entries_index_cnt++; |
131 | madt_entries_index_cnt++; |
132 | } |
132 | } |
133 | 133 | ||
134 | /* create madt apic entries index array */ |
134 | /* create madt apic entries index array */ |
135 | madt_entries_index = (struct madt_apic_header * *) malloc(madt_entries_index_cnt * sizeof(struct madt_apic_header * *)); |
135 | madt_entries_index = (struct madt_apic_header * *) malloc(madt_entries_index_cnt * sizeof(struct madt_apic_header * *)); |
136 | 136 | ||
137 | __u32 index = 0; |
137 | __u32 index = 0; |
138 | 138 | ||
139 | for (h = &acpi_madt->apic_header[0]; h < end; h = (struct madt_apic_header *) (((__u8 *) h) + h->length)) { |
139 | for (h = &acpi_madt->apic_header[0]; h < end; h = (struct madt_apic_header *) (((__u8 *) h) + h->length)) { |
140 | madt_entries_index[index++] = h; |
140 | madt_entries_index[index++] = h; |
141 | } |
141 | } |
142 | 142 | ||
143 | /* Quicksort MADT index structure */ |
143 | /* Quicksort MADT index structure */ |
144 | qsort(madt_entries_index, madt_entries_index_cnt, sizeof(__address), &madt_cmp); |
144 | qsort(madt_entries_index, madt_entries_index_cnt, sizeof(__address), &madt_cmp); |
145 | 145 | ||
146 | /* Parse MADT entries */ |
146 | /* Parse MADT entries */ |
147 | for (index = 0; index < madt_entries_index_cnt - 1; index++) { |
147 | for (index = 0; index < madt_entries_index_cnt - 1; index++) { |
148 | h = madt_entries_index[index]; |
148 | h = madt_entries_index[index]; |
149 | switch (h->type) { |
149 | switch (h->type) { |
150 | case MADT_L_APIC: |
150 | case MADT_L_APIC: |
151 | madt_l_apic_entry((struct madt_l_apic *) h, index); |
151 | madt_l_apic_entry((struct madt_l_apic *) h, index); |
152 | break; |
152 | break; |
153 | case MADT_IO_APIC: |
153 | case MADT_IO_APIC: |
154 | madt_io_apic_entry((struct madt_io_apic *) h, index); |
154 | madt_io_apic_entry((struct madt_io_apic *) h, index); |
155 | break; |
155 | break; |
156 | case MADT_INTR_SRC_OVRD: |
156 | case MADT_INTR_SRC_OVRD: |
157 | case MADT_NMI_SRC: |
157 | case MADT_NMI_SRC: |
158 | case MADT_L_APIC_NMI: |
158 | case MADT_L_APIC_NMI: |
159 | case MADT_L_APIC_ADDR_OVRD: |
159 | case MADT_L_APIC_ADDR_OVRD: |
160 | case MADT_IO_SAPIC: |
160 | case MADT_IO_SAPIC: |
161 | case MADT_L_SAPIC: |
161 | case MADT_L_SAPIC: |
162 | case MADT_PLATFORM_INTR_SRC: |
162 | case MADT_PLATFORM_INTR_SRC: |
163 | printf("MADT: skipping %s entry (type=%d)\n", entry[h->type], h->type); |
163 | printf("MADT: skipping %s entry (type=%d)\n", entry[h->type], h->type); |
164 | break; |
164 | break; |
165 | 165 | ||
166 | default: |
166 | default: |
167 | if (h->type >= MADT_RESERVED_SKIP_BEGIN && h->type <= MADT_RESERVED_SKIP_END) { |
167 | if (h->type >= MADT_RESERVED_SKIP_BEGIN && h->type <= MADT_RESERVED_SKIP_END) { |
168 | printf("MADT: skipping reserved entry (type=%d)\n", h->type); |
168 | printf("MADT: skipping reserved entry (type=%d)\n", h->type); |
169 | } |
169 | } |
170 | if (h->type >= MADT_RESERVED_OEM_BEGIN) { |
170 | if (h->type >= MADT_RESERVED_OEM_BEGIN) { |
171 | printf("MADT: skipping OEM entry (type=%d)\n", h->type); |
171 | printf("MADT: skipping OEM entry (type=%d)\n", h->type); |
172 | } |
172 | } |
173 | break; |
173 | break; |
174 | } |
174 | } |
175 | 175 | ||
176 | 176 | ||
177 | } |
177 | } |
178 | 178 | ||
179 | 179 | ||
180 | if (cpu_count) |
180 | if (cpu_count) |
181 | config.cpu_count = cpu_count; |
181 | config.cpu_count = cpu_count; |
182 | } |
182 | } |
183 | 183 | ||
184 | 184 | ||
185 | void madt_l_apic_entry(struct madt_l_apic *la, __u32 index) |
185 | void madt_l_apic_entry(struct madt_l_apic *la, __u32 index) |
186 | { |
186 | { |
187 | if (!madt_l_apic_entry_cnt++) { |
187 | if (!madt_l_apic_entry_cnt++) { |
188 | madt_l_apic_entry_index = index; |
188 | madt_l_apic_entry_index = index; |
189 | } |
189 | } |
190 | 190 | ||
191 | if (!(la->flags & 0x1)) { |
191 | if (!(la->flags & 0x1)) { |
192 | /* Processor is unusable, skip it. */ |
192 | /* Processor is unusable, skip it. */ |
193 | return; |
193 | return; |
194 | } |
194 | } |
195 | 195 | ||
196 | cpu_count++; |
196 | cpu_count++; |
197 | apic_id_mask |= 1<<la->apic_id; |
197 | apic_id_mask |= 1<<la->apic_id; |
198 | } |
198 | } |
199 | 199 | ||
200 | void madt_io_apic_entry(struct madt_io_apic *ioa, __u32 index) |
200 | void madt_io_apic_entry(struct madt_io_apic *ioa, __u32 index) |
201 | { |
201 | { |
202 | if (!madt_io_apic_entry_cnt++) { |
202 | if (!madt_io_apic_entry_cnt++) { |
203 | /* remember index of the first io apic entry */ |
203 | /* remember index of the first io apic entry */ |
204 | madt_io_apic_entry_index = index; |
204 | madt_io_apic_entry_index = index; |
205 | io_apic = (__u32 *) (__native) ioa->io_apic_address; |
205 | io_apic = (__u32 *) (__native) ioa->io_apic_address; |
206 | } else { |
206 | } else { |
207 | /* currently not supported */ |
207 | /* currently not supported */ |
208 | return; |
208 | return; |
209 | } |
209 | } |
210 | } |
210 | } |
211 | 211 | ||
212 | 212 | ||
213 | #endif /* __SMP__ */ |
213 | #endif /* __SMP__ */ |
214 | 214 |