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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 | /** @addtogroup genarch |
29 | /** @addtogroup genarch |
30 | * @{ |
30 | * @{ |
31 | */ |
31 | */ |
32 | /** |
32 | /** |
33 | * @file |
33 | * @file |
34 | * @brief Multiple APIC Description Table (MADT) parsing. |
34 | * @brief Multiple APIC Description Table (MADT) parsing. |
35 | */ |
35 | */ |
36 | 36 | ||
37 | #include <arch/types.h> |
37 | #include <arch/types.h> |
38 | #include <genarch/acpi/acpi.h> |
38 | #include <genarch/acpi/acpi.h> |
39 | #include <genarch/acpi/madt.h> |
39 | #include <genarch/acpi/madt.h> |
40 | #include <arch/smp/apic.h> |
40 | #include <arch/smp/apic.h> |
41 | #include <arch/smp/smp.h> |
41 | #include <arch/smp/smp.h> |
42 | #include <panic.h> |
42 | #include <panic.h> |
43 | #include <debug.h> |
43 | #include <debug.h> |
44 | #include <config.h> |
44 | #include <config.h> |
45 | #include <print.h> |
45 | #include <print.h> |
46 | #include <mm/slab.h> |
46 | #include <mm/slab.h> |
47 | #include <memstr.h> |
47 | #include <memstr.h> |
48 | #include <sort.h> |
48 | #include <sort.h> |
49 | 49 | ||
50 | struct acpi_madt *acpi_madt = NULL; |
50 | struct acpi_madt *acpi_madt = NULL; |
51 | 51 | ||
52 | #ifdef CONFIG_SMP |
52 | #ifdef CONFIG_SMP |
53 | 53 | ||
54 | /** Standard ISA IRQ map; can be overriden by Interrupt Source Override entries of MADT. */ |
54 | /** Standard ISA IRQ map; can be overriden by Interrupt Source Override entries of MADT. */ |
55 | int isa_irq_map[] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 }; |
55 | int isa_irq_map[] = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15 }; |
56 | 56 | ||
57 | static void madt_l_apic_entry(struct madt_l_apic *la, uint32_t index); |
57 | static void madt_l_apic_entry(struct madt_l_apic *la, uint32_t index); |
58 | static void madt_io_apic_entry(struct madt_io_apic *ioa, uint32_t index); |
58 | static void madt_io_apic_entry(struct madt_io_apic *ioa, uint32_t index); |
59 | static void madt_intr_src_ovrd_entry(struct madt_intr_src_ovrd *override, uint32_t index); |
59 | static void madt_intr_src_ovrd_entry(struct madt_intr_src_ovrd *override, uint32_t index); |
60 | static int madt_cmp(void * a, void * b); |
60 | static int madt_cmp(void * a, void * b); |
61 | 61 | ||
62 | struct madt_l_apic *madt_l_apic_entries = NULL; |
62 | struct madt_l_apic *madt_l_apic_entries = NULL; |
63 | struct madt_io_apic *madt_io_apic_entries = NULL; |
63 | struct madt_io_apic *madt_io_apic_entries = NULL; |
64 | 64 | ||
65 | index_t madt_l_apic_entry_index = 0; |
65 | index_t madt_l_apic_entry_index = 0; |
66 | index_t madt_io_apic_entry_index = 0; |
66 | index_t madt_io_apic_entry_index = 0; |
67 | count_t madt_l_apic_entry_cnt = 0; |
67 | count_t madt_l_apic_entry_cnt = 0; |
68 | count_t madt_io_apic_entry_cnt = 0; |
68 | count_t madt_io_apic_entry_cnt = 0; |
69 | count_t cpu_count = 0; |
69 | count_t cpu_count = 0; |
70 | 70 | ||
71 | struct madt_apic_header * * madt_entries_index = NULL; |
71 | struct madt_apic_header * * madt_entries_index = NULL; |
72 | unsigned int madt_entries_index_cnt = 0; |
72 | unsigned int madt_entries_index_cnt = 0; |
73 | 73 | ||
74 | char *entry[] = { |
74 | char *entry[] = { |
75 | "L_APIC", |
75 | "L_APIC", |
76 | "IO_APIC", |
76 | "IO_APIC", |
77 | "INTR_SRC_OVRD", |
77 | "INTR_SRC_OVRD", |
78 | "NMI_SRC", |
78 | "NMI_SRC", |
79 | "L_APIC_NMI", |
79 | "L_APIC_NMI", |
80 | "L_APIC_ADDR_OVRD", |
80 | "L_APIC_ADDR_OVRD", |
81 | "IO_SAPIC", |
81 | "IO_SAPIC", |
82 | "L_SAPIC", |
82 | "L_SAPIC", |
83 | "PLATFORM_INTR_SRC" |
83 | "PLATFORM_INTR_SRC" |
84 | }; |
84 | }; |
85 | 85 | ||
86 | /* |
86 | /* |
87 | * ACPI MADT Implementation of SMP configuration interface. |
87 | * ACPI MADT Implementation of SMP configuration interface. |
88 | */ |
88 | */ |
89 | static count_t madt_cpu_count(void); |
89 | static count_t madt_cpu_count(void); |
90 | static bool madt_cpu_enabled(index_t i); |
90 | static bool madt_cpu_enabled(index_t i); |
91 | static bool madt_cpu_bootstrap(index_t i); |
91 | static bool madt_cpu_bootstrap(index_t i); |
92 | static uint8_t madt_cpu_apic_id(index_t i); |
92 | static uint8_t madt_cpu_apic_id(index_t i); |
93 | static int madt_irq_to_pin(unsigned int irq); |
93 | static int madt_irq_to_pin(unsigned int irq); |
94 | 94 | ||
95 | struct smp_config_operations madt_config_operations = { |
95 | struct smp_config_operations madt_config_operations = { |
96 | .cpu_count = madt_cpu_count, |
96 | .cpu_count = madt_cpu_count, |
97 | .cpu_enabled = madt_cpu_enabled, |
97 | .cpu_enabled = madt_cpu_enabled, |
98 | .cpu_bootstrap = madt_cpu_bootstrap, |
98 | .cpu_bootstrap = madt_cpu_bootstrap, |
99 | .cpu_apic_id = madt_cpu_apic_id, |
99 | .cpu_apic_id = madt_cpu_apic_id, |
100 | .irq_to_pin = madt_irq_to_pin |
100 | .irq_to_pin = madt_irq_to_pin |
101 | }; |
101 | }; |
102 | 102 | ||
103 | count_t madt_cpu_count(void) |
103 | count_t madt_cpu_count(void) |
104 | { |
104 | { |
105 | return madt_l_apic_entry_cnt; |
105 | return madt_l_apic_entry_cnt; |
106 | } |
106 | } |
107 | 107 | ||
108 | bool madt_cpu_enabled(index_t i) |
108 | bool madt_cpu_enabled(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])->flags & 0x1; |
111 | return ((struct madt_l_apic *) madt_entries_index[madt_l_apic_entry_index + i])->flags & 0x1; |
112 | 112 | ||
113 | } |
113 | } |
114 | 114 | ||
115 | bool madt_cpu_bootstrap(index_t i) |
115 | bool madt_cpu_bootstrap(index_t i) |
116 | { |
116 | { |
117 | ASSERT(i < madt_l_apic_entry_cnt); |
117 | ASSERT(i < madt_l_apic_entry_cnt); |
118 | return ((struct madt_l_apic *) madt_entries_index[madt_l_apic_entry_index + i])->apic_id == l_apic_id(); |
118 | return ((struct madt_l_apic *) madt_entries_index[madt_l_apic_entry_index + i])->apic_id == l_apic_id(); |
119 | } |
119 | } |
120 | 120 | ||
121 | uint8_t madt_cpu_apic_id(index_t i) |
121 | uint8_t madt_cpu_apic_id(index_t i) |
122 | { |
122 | { |
123 | ASSERT(i < madt_l_apic_entry_cnt); |
123 | ASSERT(i < madt_l_apic_entry_cnt); |
124 | return ((struct madt_l_apic *) madt_entries_index[madt_l_apic_entry_index + i])->apic_id; |
124 | return ((struct madt_l_apic *) madt_entries_index[madt_l_apic_entry_index + i])->apic_id; |
125 | } |
125 | } |
126 | 126 | ||
127 | int madt_irq_to_pin(unsigned int irq) |
127 | int madt_irq_to_pin(unsigned int irq) |
128 | { |
128 | { |
129 | ASSERT(irq < sizeof(isa_irq_map) / sizeof(int)); |
129 | ASSERT(irq < sizeof(isa_irq_map) / sizeof(int)); |
130 | return isa_irq_map[irq]; |
130 | return isa_irq_map[irq]; |
131 | } |
131 | } |
132 | 132 | ||
133 | int madt_cmp(void * a, void * b) |
133 | int madt_cmp(void * a, void * b) |
134 | { |
134 | { |
135 | return |
135 | return |
136 | (((struct madt_apic_header *) a)->type > ((struct madt_apic_header *) b)->type) ? |
136 | (((struct madt_apic_header *) a)->type > ((struct madt_apic_header *) b)->type) ? |
137 | 1 : |
137 | 1 : |
138 | ((((struct madt_apic_header *) a)->type < ((struct madt_apic_header *) b)->type) ? -1 : 0); |
138 | ((((struct madt_apic_header *) a)->type < ((struct madt_apic_header *) b)->type) ? -1 : 0); |
139 | } |
139 | } |
140 | 140 | ||
141 | void acpi_madt_parse(void) |
141 | void acpi_madt_parse(void) |
142 | { |
142 | { |
143 | struct madt_apic_header *end = (struct madt_apic_header *) (((uint8_t *) acpi_madt) + acpi_madt->header.length); |
143 | struct madt_apic_header *end = (struct madt_apic_header *) (((uint8_t *) acpi_madt) + acpi_madt->header.length); |
144 | struct madt_apic_header *h; |
144 | struct madt_apic_header *h; |
145 | 145 | ||
146 | l_apic = (uint32_t *) (unative_t) acpi_madt->l_apic_address; |
146 | l_apic = (uint32_t *) (unative_t) acpi_madt->l_apic_address; |
147 | 147 | ||
148 | /* calculate madt entries */ |
148 | /* calculate madt entries */ |
149 | for (h = &acpi_madt->apic_header[0]; h < end; h = (struct madt_apic_header *) (((uint8_t *) h) + h->length)) { |
149 | for (h = &acpi_madt->apic_header[0]; h < end; h = (struct madt_apic_header *) (((uint8_t *) h) + h->length)) { |
150 | madt_entries_index_cnt++; |
150 | madt_entries_index_cnt++; |
151 | } |
151 | } |
152 | 152 | ||
153 | /* create madt apic entries index array */ |
153 | /* create madt apic entries index array */ |
154 | madt_entries_index = (struct madt_apic_header * *) malloc(madt_entries_index_cnt * sizeof(struct madt_apic_header * *), FRAME_ATOMIC); |
154 | madt_entries_index = (struct madt_apic_header * *) malloc(madt_entries_index_cnt * sizeof(struct madt_apic_header * *), FRAME_ATOMIC); |
155 | if (!madt_entries_index) |
155 | if (!madt_entries_index) |
156 | panic("Memory allocation error."); |
156 | panic("Memory allocation error."); |
157 | 157 | ||
158 | uint32_t index = 0; |
158 | uint32_t index = 0; |
159 | 159 | ||
160 | for (h = &acpi_madt->apic_header[0]; h < end; h = (struct madt_apic_header *) (((uint8_t *) h) + h->length)) { |
160 | for (h = &acpi_madt->apic_header[0]; h < end; h = (struct madt_apic_header *) (((uint8_t *) h) + h->length)) { |
161 | madt_entries_index[index++] = h; |
161 | madt_entries_index[index++] = h; |
162 | } |
162 | } |
163 | 163 | ||
164 | /* Quicksort MADT index structure */ |
164 | /* Quicksort MADT index structure */ |
165 | qsort(madt_entries_index, madt_entries_index_cnt, sizeof(uintptr_t), &madt_cmp); |
165 | qsort(madt_entries_index, madt_entries_index_cnt, sizeof(uintptr_t), &madt_cmp); |
166 | 166 | ||
167 | /* Parse MADT entries */ |
167 | /* Parse MADT entries */ |
168 | if (madt_entries_index_cnt > 0) { |
168 | if (madt_entries_index_cnt > 0) { |
169 | for (index = 0; index < madt_entries_index_cnt - 1; index++) { |
169 | for (index = 0; index < madt_entries_index_cnt - 1; index++) { |
170 | h = madt_entries_index[index]; |
170 | h = madt_entries_index[index]; |
171 | switch (h->type) { |
171 | switch (h->type) { |
172 | case MADT_L_APIC: |
172 | case MADT_L_APIC: |
173 | madt_l_apic_entry((struct madt_l_apic *) h, index); |
173 | madt_l_apic_entry((struct madt_l_apic *) h, index); |
174 | break; |
174 | break; |
175 | case MADT_IO_APIC: |
175 | case MADT_IO_APIC: |
176 | madt_io_apic_entry((struct madt_io_apic *) h, index); |
176 | madt_io_apic_entry((struct madt_io_apic *) h, index); |
177 | break; |
177 | break; |
178 | case MADT_INTR_SRC_OVRD: |
178 | case MADT_INTR_SRC_OVRD: |
179 | madt_intr_src_ovrd_entry((struct madt_intr_src_ovrd *) h, index); |
179 | madt_intr_src_ovrd_entry((struct madt_intr_src_ovrd *) h, index); |
180 | break; |
180 | break; |
181 | case MADT_NMI_SRC: |
181 | case MADT_NMI_SRC: |
182 | case MADT_L_APIC_NMI: |
182 | case MADT_L_APIC_NMI: |
183 | case MADT_L_APIC_ADDR_OVRD: |
183 | case MADT_L_APIC_ADDR_OVRD: |
184 | case MADT_IO_SAPIC: |
184 | case MADT_IO_SAPIC: |
185 | case MADT_L_SAPIC: |
185 | case MADT_L_SAPIC: |
186 | case MADT_PLATFORM_INTR_SRC: |
186 | case MADT_PLATFORM_INTR_SRC: |
187 | printf("MADT: skipping %s entry (type=%" PRIu8 ")\n", entry[h->type], h->type); |
187 | printf("MADT: skipping %s entry (type=%" PRIu8 ")\n", entry[h->type], h->type); |
188 | break; |
188 | break; |
189 | 189 | ||
190 | default: |
190 | default: |
191 | if (h->type >= MADT_RESERVED_SKIP_BEGIN && h->type <= MADT_RESERVED_SKIP_END) { |
191 | if (h->type >= MADT_RESERVED_SKIP_BEGIN && h->type <= MADT_RESERVED_SKIP_END) { |
192 | printf("MADT: skipping reserved entry (type=%" PRIu8 ")\n", h->type); |
192 | printf("MADT: skipping reserved entry (type=%" PRIu8 ")\n", h->type); |
193 | } |
193 | } |
194 | if (h->type >= MADT_RESERVED_OEM_BEGIN) { |
194 | if (h->type >= MADT_RESERVED_OEM_BEGIN) { |
195 | printf("MADT: skipping OEM entry (type=%" PRIu8 ")\n", h->type); |
195 | printf("MADT: skipping OEM entry (type=%" PRIu8 ")\n", h->type); |
196 | } |
196 | } |
197 | break; |
197 | break; |
198 | } |
198 | } |
199 | } |
199 | } |
200 | } |
200 | } |
201 | 201 | ||
202 | if (cpu_count) |
202 | if (cpu_count) |
203 | config.cpu_count = cpu_count; |
203 | config.cpu_count = cpu_count; |
204 | } |
204 | } |
205 | 205 | ||
206 | 206 | ||
207 | void madt_l_apic_entry(struct madt_l_apic *la, uint32_t index) |
207 | void madt_l_apic_entry(struct madt_l_apic *la, uint32_t index) |
208 | { |
208 | { |
209 | if (!madt_l_apic_entry_cnt++) { |
209 | if (!madt_l_apic_entry_cnt++) { |
210 | madt_l_apic_entry_index = index; |
210 | madt_l_apic_entry_index = index; |
211 | } |
211 | } |
212 | 212 | ||
213 | if (!(la->flags & 0x1)) { |
213 | if (!(la->flags & 0x1)) { |
214 | /* Processor is unusable, skip it. */ |
214 | /* Processor is unusable, skip it. */ |
215 | return; |
215 | return; |
216 | } |
216 | } |
217 | 217 | ||
218 | cpu_count++; |
218 | cpu_count++; |
219 | apic_id_mask |= 1<<la->apic_id; |
219 | apic_id_mask |= 1<<la->apic_id; |
220 | } |
220 | } |
221 | 221 | ||
222 | void madt_io_apic_entry(struct madt_io_apic *ioa, uint32_t index) |
222 | void madt_io_apic_entry(struct madt_io_apic *ioa, uint32_t index) |
223 | { |
223 | { |
224 | if (!madt_io_apic_entry_cnt++) { |
224 | if (!madt_io_apic_entry_cnt++) { |
225 | /* remember index of the first io apic entry */ |
225 | /* remember index of the first io apic entry */ |
226 | madt_io_apic_entry_index = index; |
226 | madt_io_apic_entry_index = index; |
227 | io_apic = (uint32_t *) (unative_t) ioa->io_apic_address; |
227 | io_apic = (uint32_t *) (unative_t) ioa->io_apic_address; |
228 | } else { |
228 | } else { |
229 | /* currently not supported */ |
229 | /* currently not supported */ |
230 | return; |
230 | return; |
231 | } |
231 | } |
232 | } |
232 | } |
233 | 233 | ||
234 | void madt_intr_src_ovrd_entry(struct madt_intr_src_ovrd *override, uint32_t index) |
234 | void madt_intr_src_ovrd_entry(struct madt_intr_src_ovrd *override, uint32_t index) |
235 | { |
235 | { |
236 | ASSERT(override->source < sizeof(isa_irq_map) / sizeof(int)); |
236 | ASSERT(override->source < sizeof(isa_irq_map) / sizeof(int)); |
237 | printf("MADT: ignoring %s entry: bus=%" PRIu8 ", source=%" PRIu8 ", global_int=%" PRIu32 ", flags=%#" PRIx16 "\n", |
237 | printf("MADT: ignoring %s entry: bus=%" PRIu8 ", source=%" PRIu8 ", global_int=%" PRIu32 ", flags=%#" PRIx16 "\n", |
238 | entry[override->header.type], override->bus, override->source, |
238 | entry[override->header.type], override->bus, override->source, |
239 | override->global_int, override->flags); |
239 | override->global_int, override->flags); |
240 | } |
240 | } |
241 | 241 | ||
242 | #endif /* CONFIG_SMP */ |
242 | #endif /* CONFIG_SMP */ |
243 | 243 | ||
244 | /** @} |
244 | /** @} |
245 | */ |
245 | */ |
246 | 246 |