Rev 334 | Rev 370 | Go to most recent revision | Details | Compare with Previous | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
---|---|---|---|
33 | jermar | 1 | /* |
2 | * Copyright (C) 2005 Jakub Jermar |
||
3 | * All rights reserved. |
||
4 | * |
||
5 | * Redistribution and use in source and binary forms, with or without |
||
6 | * modification, are permitted provided that the following conditions |
||
7 | * are met: |
||
8 | * |
||
9 | * - Redistributions of source code must retain the above copyright |
||
10 | * notice, this list of conditions and the following disclaimer. |
||
11 | * - Redistributions in binary form must reproduce the above copyright |
||
12 | * notice, this list of conditions and the following disclaimer in the |
||
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 |
||
15 | * derived from this software without specific prior written permission. |
||
16 | * |
||
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 |
||
19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. |
||
20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, |
||
21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT |
||
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 |
||
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 |
||
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
||
27 | */ |
||
28 | |||
34 | jermar | 29 | #include <arch/types.h> |
129 | jermar | 30 | #include <typedefs.h> |
33 | jermar | 31 | #include <arch/acpi/acpi.h> |
32 | #include <arch/acpi/madt.h> |
||
34 | jermar | 33 | #include <arch/smp/apic.h> |
129 | jermar | 34 | #include <arch/smp/smp.h> |
127 | jermar | 35 | #include <panic.h> |
129 | jermar | 36 | #include <debug.h> |
37 | #include <config.h> |
||
195 | vana | 38 | #include <print.h> |
310 | bondari | 39 | #include <mm/heap.h> |
40 | #include <memstr.h> |
||
331 | bondari | 41 | #include <sort.h> |
33 | jermar | 42 | |
43 | struct acpi_madt *acpi_madt = NULL; |
||
34 | jermar | 44 | |
45 | #ifdef __SMP__ |
||
46 | |||
310 | bondari | 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); |
||
331 | bondari | 49 | static int madt_cmp(void * a, void * b); |
127 | jermar | 50 | |
51 | struct madt_l_apic *madt_l_apic_entries = NULL; |
||
52 | struct madt_io_apic *madt_io_apic_entries = NULL; |
||
53 | |||
310 | bondari | 54 | __u32 madt_l_apic_entry_index = 0; |
55 | __u32 madt_io_apic_entry_index = 0; |
||
127 | jermar | 56 | int madt_l_apic_entry_cnt = 0; |
57 | int madt_io_apic_entry_cnt = 0; |
||
58 | |||
310 | bondari | 59 | struct madt_apic_header * * madt_entries_index = NULL; |
60 | int madt_entries_index_cnt = 0; |
||
61 | |||
34 | jermar | 62 | char *entry[] = { |
63 | "L_APIC", |
||
64 | "IO_APIC", |
||
65 | "INTR_SRC_OVRD", |
||
66 | "NMI_SRC", |
||
67 | "L_APIC_NMI", |
||
68 | "L_APIC_ADDR_OVRD", |
||
69 | "IO_SAPIC", |
||
70 | "L_SAPIC", |
||
71 | "PLATFORM_INTR_SRC" |
||
72 | }; |
||
73 | |||
129 | jermar | 74 | /* |
75 | * ACPI MADT Implementation of SMP configuration interface. |
||
76 | */ |
||
77 | static count_t madt_cpu_count(void); |
||
78 | static bool madt_cpu_enabled(index_t i); |
||
79 | static bool madt_cpu_bootstrap(index_t i); |
||
80 | static __u8 madt_cpu_apic_id(index_t i); |
||
81 | |||
82 | struct smp_config_operations madt_config_operations = { |
||
83 | .cpu_count = madt_cpu_count, |
||
84 | .cpu_enabled = madt_cpu_enabled, |
||
85 | .cpu_bootstrap = madt_cpu_bootstrap, |
||
86 | .cpu_apic_id = madt_cpu_apic_id |
||
87 | }; |
||
88 | |||
89 | static count_t madt_cpu_count(void) |
||
90 | { |
||
91 | return madt_l_apic_entry_cnt; |
||
92 | } |
||
93 | |||
94 | static bool madt_cpu_enabled(index_t i) |
||
95 | { |
||
96 | ASSERT(i < madt_l_apic_entry_cnt); |
||
310 | bondari | 97 | return ((struct madt_l_apic *) madt_entries_index[madt_l_apic_entry_index + i])->flags & 0x1; |
98 | |||
129 | jermar | 99 | } |
100 | |||
101 | static bool madt_cpu_bootstrap(index_t i) |
||
102 | { |
||
103 | ASSERT(i < madt_l_apic_entry_cnt); |
||
310 | bondari | 104 | return ((struct madt_l_apic *) madt_entries_index[madt_l_apic_entry_index + i])->apic_id == l_apic_id(); |
129 | jermar | 105 | } |
106 | |||
107 | static __u8 madt_cpu_apic_id(index_t i) |
||
108 | { |
||
109 | ASSERT(i < madt_l_apic_entry_cnt); |
||
310 | bondari | 110 | return ((struct madt_l_apic *) madt_entries_index[madt_l_apic_entry_index + i])->apic_id; |
129 | jermar | 111 | } |
112 | |||
331 | bondari | 113 | int madt_cmp(void * a, void * b) |
114 | { |
||
349 | jermar | 115 | return |
116 | (((struct madt_apic_header *) a)->type > ((struct madt_apic_header *) b)->type) ? |
||
117 | 1 : |
||
118 | ((((struct madt_apic_header *) a)->type < ((struct madt_apic_header *) b)->type) ? -1 : 0); |
||
331 | bondari | 119 | } |
120 | |||
34 | jermar | 121 | void acpi_madt_parse(void) |
122 | { |
||
123 | struct madt_apic_header *end = (struct madt_apic_header *) (((__u8 *) acpi_madt) + acpi_madt->header.length); |
||
310 | bondari | 124 | struct madt_apic_header *h; |
311 | bondari | 125 | |
126 | l_apic = (__u32 *) (__native) acpi_madt->l_apic_address; |
||
34 | jermar | 127 | |
310 | bondari | 128 | /* calculate madt entries */ |
129 | for (h = &acpi_madt->apic_header[0]; h < end; h = (struct madt_apic_header *) (((__u8 *) h) + h->length)) { |
||
130 | madt_entries_index_cnt++; |
||
131 | } |
||
127 | jermar | 132 | |
310 | bondari | 133 | /* create madt apic entries index array */ |
134 | madt_entries_index = (struct madt_apic_header * *) malloc(madt_entries_index_cnt * sizeof(struct madt_apic_header * *)); |
||
34 | jermar | 135 | |
310 | bondari | 136 | __u32 index = 0; |
137 | |||
138 | for (h = &acpi_madt->apic_header[0]; h < end; h = (struct madt_apic_header *) (((__u8 *) h) + h->length)) { |
||
139 | madt_entries_index[index++] = h; |
||
140 | } |
||
141 | |||
331 | bondari | 142 | /* Quicksort MADT index structure */ |
143 | qsort(madt_entries_index, madt_entries_index_cnt, sizeof(__address), &madt_cmp); |
||
310 | bondari | 144 | |
145 | /* Parse MADT entries */ |
||
146 | for (index = 0; index < madt_entries_index_cnt - 1; index++) { |
||
147 | h = madt_entries_index[index]; |
||
34 | jermar | 148 | switch (h->type) { |
149 | case MADT_L_APIC: |
||
310 | bondari | 150 | madt_l_apic_entry((struct madt_l_apic *) h, index); |
127 | jermar | 151 | break; |
34 | jermar | 152 | case MADT_IO_APIC: |
310 | bondari | 153 | madt_io_apic_entry((struct madt_io_apic *) h, index); |
127 | jermar | 154 | break; |
34 | jermar | 155 | case MADT_INTR_SRC_OVRD: |
156 | case MADT_NMI_SRC: |
||
157 | case MADT_L_APIC_NMI: |
||
158 | case MADT_L_APIC_ADDR_OVRD: |
||
159 | case MADT_IO_SAPIC: |
||
160 | case MADT_L_SAPIC: |
||
161 | case MADT_PLATFORM_INTR_SRC: |
||
162 | printf("MADT: skipping %s entry (type=%d)\n", entry[h->type], h->type); |
||
163 | break; |
||
164 | |||
165 | default: |
||
166 | if (h->type >= MADT_RESERVED_SKIP_BEGIN && h->type <= MADT_RESERVED_SKIP_END) { |
||
167 | printf("MADT: skipping reserved entry (type=%d)\n", h->type); |
||
168 | } |
||
169 | if (h->type >= MADT_RESERVED_OEM_BEGIN) { |
||
170 | printf("MADT: skipping OEM entry (type=%d)\n", h->type); |
||
171 | } |
||
172 | break; |
||
173 | } |
||
310 | bondari | 174 | |
175 | |||
34 | jermar | 176 | } |
310 | bondari | 177 | |
34 | jermar | 178 | |
129 | jermar | 179 | if (madt_l_apic_entry_cnt) |
180 | config.cpu_count = madt_l_apic_entry_cnt; |
||
34 | jermar | 181 | } |
127 | jermar | 182 | |
310 | bondari | 183 | |
184 | void madt_l_apic_entry(struct madt_l_apic *la, __u32 index) |
||
127 | jermar | 185 | { |
310 | bondari | 186 | if (!madt_l_apic_entry_cnt++) { |
187 | madt_l_apic_entry_index = index; |
||
188 | } |
||
127 | jermar | 189 | |
190 | if (!(la->flags & 0x1)) { |
||
191 | /* Processor is unusable, skip it. */ |
||
192 | return; |
||
193 | } |
||
194 | |||
195 | apic_id_mask |= 1<<la->apic_id; |
||
196 | } |
||
197 | |||
310 | bondari | 198 | void madt_io_apic_entry(struct madt_io_apic *ioa, __u32 index) |
127 | jermar | 199 | { |
200 | if (!madt_io_apic_entry_cnt++) { |
||
310 | bondari | 201 | /* remember index of the first io apic entry */ |
202 | madt_io_apic_entry_index = index; |
||
268 | palkovsky | 203 | io_apic = (__u32 *) (__native) ioa->io_apic_address; |
310 | bondari | 204 | } else { |
127 | jermar | 205 | /* currently not supported */ |
206 | return; |
||
207 | } |
||
208 | } |
||
209 | |||
210 | |||
34 | jermar | 211 | #endif /* __SMP__ */ |