1 | /*␊ |
2 | * Copyright 2008 mackerintel␊ |
3 | */␊ |
4 | ␊ |
5 | #include "libsaio.h"␊ |
6 | #include "boot.h"␊ |
7 | #include "bootstruct.h"␊ |
8 | #include "acpi.h"␊ |
9 | #include "efi_tables.h"␊ |
10 | #include "fake_efi.h"␊ |
11 | #include "acpi_patcher.h"␊ |
12 | #include "platform.h"␊ |
13 | #include "cpu.h"␊ |
14 | #include "aml_generator.h"␊ |
15 | ␊ |
16 | #ifndef DEBUG_ACPI␊ |
17 | #define DEBUG_ACPI 0␊ |
18 | #endif␊ |
19 | ␊ |
20 | #if DEBUG_ACPI==2␊ |
21 | #define DBG(x...) {printf(x); sleep(1);}␊ |
22 | #elif DEBUG_ACPI==1␊ |
23 | #define DBG(x...) printf(x)␊ |
24 | #else␊ |
25 | #define DBG(x...)␊ |
26 | #endif␊ |
27 | ␊ |
28 | // Slice: New signature compare function␊ |
29 | boolean_t tableSign(char *table, const char *sgn)␊ |
30 | {␊ |
31 | ␉int i;␊ |
32 | ␉for (i=0; i<4; i++) {␊ |
33 | ␉␉if ((table[i] &~0x20) != (sgn[i] &~0x20)) {␊ |
34 | ␉␉␉return false;␊ |
35 | ␉␉}␊ |
36 | ␉}␊ |
37 | ␉return true;␊ |
38 | }␊ |
39 | ␊ |
40 | /* Gets the ACPI 1.0 RSDP address */␊ |
41 | static struct acpi_2_rsdp* getAddressOfAcpiTable()␊ |
42 | {␊ |
43 | /* TODO: Before searching the BIOS space we are supposed to search the first 1K of the EBDA */␊ |
44 | ␉␊ |
45 | void *acpi_addr = (void*)ACPI_RANGE_START;␊ |
46 | for(; acpi_addr <= (void*)ACPI_RANGE_END; acpi_addr += 16)␊ |
47 | {␊ |
48 | if(*(uint64_t *)acpi_addr == ACPI_SIGNATURE_UINT64_LE)␊ |
49 | {␊ |
50 | uint8_t csum = checksum8(acpi_addr, 20);␊ |
51 | if(csum == 0)␊ |
52 | {␊ |
53 | // Only return the table if it is a true version 1.0 table (Revision 0)␊ |
54 | if(((struct acpi_2_rsdp*)acpi_addr)->Revision == 0)␊ |
55 | return acpi_addr;␊ |
56 | }␊ |
57 | }␊ |
58 | }␊ |
59 | return NULL;␊ |
60 | }␊ |
61 | ␊ |
62 | /* Gets the ACPI 2.0 RSDP address */␊ |
63 | static struct acpi_2_rsdp* getAddressOfAcpi20Table()␊ |
64 | {␊ |
65 | /* TODO: Before searching the BIOS space we are supposed to search the first 1K of the EBDA */␊ |
66 | ␉␊ |
67 | void *acpi_addr = (void*)ACPI_RANGE_START;␊ |
68 | for(; acpi_addr <= (void*)ACPI_RANGE_END; acpi_addr += 16)␊ |
69 | {␊ |
70 | if(*(uint64_t *)acpi_addr == ACPI_SIGNATURE_UINT64_LE)␊ |
71 | {␊ |
72 | uint8_t csum = checksum8(acpi_addr, 20);␊ |
73 | ␉␉␉␊ |
74 | /* Only assume this is a 2.0 or better table if the revision is greater than 0␊ |
75 | * NOTE: ACPI 3.0 spec only seems to say that 1.0 tables have revision 1␊ |
76 | * and that the current revision is 2.. I am going to assume that rev > 0 is 2.0.␊ |
77 | */␊ |
78 | ␉␉␉␊ |
79 | if(csum == 0 && (((struct acpi_2_rsdp*)acpi_addr)->Revision > 0))␊ |
80 | {␊ |
81 | uint8_t csum2 = checksum8(acpi_addr, sizeof(struct acpi_2_rsdp));␊ |
82 | if(csum2 == 0)␊ |
83 | return acpi_addr;␊ |
84 | }␊ |
85 | }␊ |
86 | }␊ |
87 | return NULL;␊ |
88 | }␊ |
89 | /** The folowing ACPI Table search algo. should be reused anywhere needed:*/␊ |
90 | int search_and_get_acpi_fd(const char * filename, const char ** outDirspec)␊ |
91 | {␊ |
92 | ␉int fd = 0;␊ |
93 | ␉char dirSpec[512] = "";␊ |
94 | ␉␊ |
95 | ␉// Try finding 'filename' in the usual places␊ |
96 | ␉// Start searching any potential location for ACPI Table␊ |
97 | ␉sprintf(dirSpec, "%s", filename); ␊ |
98 | ␉fd = open(dirSpec, 0);␊ |
99 | ␉if (fd < 0)␊ |
100 | ␉{␉␊ |
101 | ␉␉sprintf(dirSpec, "/Extra/%s", filename); ␊ |
102 | ␉␉fd = open(dirSpec, 0);␊ |
103 | ␉␉if (fd < 0)␊ |
104 | ␉␉{␊ |
105 | ␉␉␉sprintf(dirSpec, "bt(0,0)/Extra/%s", filename);␊ |
106 | ␉␉␉fd = open(dirSpec, 0);␊ |
107 | ␉␉}␊ |
108 | ␉}␊ |
109 | ␊ |
110 | ␉if (fd < 0)␊ |
111 | ␉{␊ |
112 | ␉␉// NOT FOUND:␊ |
113 | ␉␉verbose("ACPI table not found: %s\n", filename);␊ |
114 | ␉␉*dirSpec = '\0';␊ |
115 | ␉}␊ |
116 | ␊ |
117 | ␉if (outDirspec) *outDirspec = dirSpec; ␊ |
118 | ␉return fd;␊ |
119 | }␊ |
120 | ␊ |
121 | ␊ |
122 | void *loadACPITable (const char * filename)␊ |
123 | {␊ |
124 | ␉void *tableAddr;␊ |
125 | ␉const char * dirspec=NULL;␊ |
126 | ␉␊ |
127 | ␉int fd = search_and_get_acpi_fd(filename, &dirspec);␊ |
128 | ␉␊ |
129 | ␉if (fd>=0)␊ |
130 | ␉{␊ |
131 | ␉␉tableAddr=(void*)AllocateKernelMemory(file_size (fd));␊ |
132 | ␉␉if (tableAddr)␊ |
133 | ␉␉{␊ |
134 | ␉␉␉if (read (fd, tableAddr, file_size (fd))!=file_size (fd))␊ |
135 | ␉␉␉{␊ |
136 | ␉␉␉␉printf("Couldn't read table %s\n",dirspec);␊ |
137 | ␉␉␉␉free (tableAddr);␊ |
138 | ␉␉␉␉close (fd);␊ |
139 | ␉␉␉␉return NULL;␊ |
140 | ␉␉␉}␊ |
141 | ␉␉␉␊ |
142 | ␉␉␉DBG("Table %s read and stored at: %x\n", dirspec, tableAddr);␊ |
143 | ␉␉␉close (fd);␊ |
144 | ␉␉␉return tableAddr;␊ |
145 | ␉␉}␊ |
146 | ␉␉close (fd);␊ |
147 | ␉␉printf("Couldn't allocate memory for table \n", dirspec);␊ |
148 | ␉} ␊ |
149 | ␉//printf("Couldn't find table %s\n", filename);␊ |
150 | ␉return NULL;␊ |
151 | }␊ |
152 | ␊ |
153 | uint8_t␉acpi_cpu_count = 0;␊ |
154 | char* acpi_cpu_name[32];␊ |
155 | uint32_t acpi_cpu_p_blk = 0;␊ |
156 | ␊ |
157 | void get_acpi_cpu_names(unsigned char* dsdt, uint32_t length)␊ |
158 | {␊ |
159 | ␉uint32_t i;␊ |
160 | ␉␊ |
161 | ␉for (i=0; i<length-7; i++) ␊ |
162 | ␉{␊ |
163 | ␉␉if (dsdt[i] == 0x5B && dsdt[i+1] == 0x83) // ProcessorOP␊ |
164 | ␉␉{␊ |
165 | ␉␉␉uint32_t offset = i + 3 + (dsdt[i+2] >> 6);␊ |
166 | ␉␉␉␊ |
167 | ␉␉␉bool add_name = true;␊ |
168 | ␊ |
169 | ␉␉␉uint8_t j;␊ |
170 | ␉␉␉␊ |
171 | ␉␉␉for (j=0; j<4; j++) ␊ |
172 | ␉␉␉{␊ |
173 | ␉␉␉␉char c = dsdt[offset+j];␊ |
174 | ␉␉␉␉␊ |
175 | ␉␉␉␉if (!aml_isvalidchar(c)) ␊ |
176 | ␉␉␉␉{␊ |
177 | ␉␉␉␉␉add_name = false;␊ |
178 | ␉␉␉␉␉verbose("Invalid character found in ProcessorOP 0x%x!\n", c);␊ |
179 | ␉␉␉␉␉break;␊ |
180 | ␉␉␉␉}␊ |
181 | ␉␉␉}␊ |
182 | ␉␉␉␊ |
183 | ␉␉␉if (add_name) ␊ |
184 | ␉␉␉{␊ |
185 | ␉␉␉␉acpi_cpu_name[acpi_cpu_count] = malloc(4);␊ |
186 | ␉␉␉␉memcpy(acpi_cpu_name[acpi_cpu_count], dsdt+offset, 4);␊ |
187 | ␉␉␉␉i = offset + 5;␊ |
188 | ␊ |
189 | if (acpi_cpu_count == 0)␊ |
190 | acpi_cpu_p_blk = dsdt[i] | (dsdt[i+1] << 8);␊ |
191 | ␉␉␉␉␊ |
192 | ␉␉␉␉verbose("Found ACPI CPU: %c%c%c%c\n", acpi_cpu_name[acpi_cpu_count][0], acpi_cpu_name[acpi_cpu_count][1], acpi_cpu_name[acpi_cpu_count][2], acpi_cpu_name[acpi_cpu_count][3]);␊ |
193 | ␉␉␉␉␊ |
194 | ␉␉␉␉if (++acpi_cpu_count == 32) return;␊ |
195 | ␉␉␉}␊ |
196 | ␉␉}␊ |
197 | ␉}␊ |
198 | }␊ |
199 | ␊ |
200 | struct acpi_2_ssdt *generate_cst_ssdt(struct acpi_2_fadt* fadt)␊ |
201 | {␊ |
202 | ␉char ssdt_header[] =␊ |
203 | ␉{␊ |
204 | ␉␉0x53, 0x53, 0x44, 0x54, 0xE7, 0x00, 0x00, 0x00, /* SSDT.... */␊ |
205 | ␉␉0x01, 0x17, 0x50, 0x6D, 0x52, 0x65, 0x66, 0x41, /* ..PmRefA */␊ |
206 | ␉␉0x43, 0x70, 0x75, 0x43, 0x73, 0x74, 0x00, 0x00, /* CpuCst.. */␊ |
207 | ␉␉0x00, 0x10, 0x00, 0x00, 0x49, 0x4E, 0x54, 0x4C, /* ....INTL */␊ |
208 | ␉␉0x31, 0x03, 0x10, 0x20 ␉␉␉␉␉␉␉/* 1.._␉␉*/␊ |
209 | ␉};␊ |
210 | ␉␊ |
211 | ␉char resource_template_register_fixedhw[] = ␊ |
212 | ␉{␊ |
213 | ␉␉0x11, 0x14, 0x0A, 0x11, 0x82, 0x0C, 0x00, 0x7F, ␊ |
214 | ␉␉0x01, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, ␊ |
215 | ␉␉0x00, 0x00, 0x01, 0x79, 0x00␊ |
216 | ␉};␊ |
217 | ␊ |
218 | char resource_template_register_systemio[] = ␊ |
219 | ␉{␊ |
220 | ␉␉0x11, 0x14, 0x0A, 0x11, 0x82, 0x0C, 0x00, 0x01,␊ |
221 | 0x08, 0x00, 0x00, 0x15, 0x04, 0x00, 0x00, 0x00,␊ |
222 | 0x00, 0x00, 0x00, 0x79, 0x00, ␉␊ |
223 | };␊ |
224 | ␊ |
225 | ␉if (Platform.CPU.Vendor != 0x756E6547) {␊ |
226 | ␉␉verbose ("Not an Intel platform: C-States will not be generated !!!\n");␊ |
227 | ␉␉return NULL;␊ |
228 | ␉}␊ |
229 | ␉␊ |
230 | ␉if (fadt == NULL) {␊ |
231 | ␉␉verbose ("FACP not exists: C-States will not be generated !!!\n");␊ |
232 | ␉␉return NULL;␊ |
233 | ␉}␊ |
234 | ␉␊ |
235 | ␉struct acpi_2_dsdt* dsdt = (void*)fadt->DSDT;␊ |
236 | ␉␊ |
237 | ␉if (dsdt == NULL) {␊ |
238 | ␉␉verbose ("DSDT not found: C-States will not be generated !!!\n");␊ |
239 | ␉␉return NULL;␊ |
240 | ␉}␊ |
241 | ␉␊ |
242 | ␉if (acpi_cpu_count == 0) ␊ |
243 | ␉␉get_acpi_cpu_names((void*)dsdt, dsdt->Length);␊ |
244 | ␉␊ |
245 | ␉if (acpi_cpu_count > 0) ␊ |
246 | ␉{␊ |
247 | ␉␉bool c2_enabled = false;␊ |
248 | ␉␉bool c3_enabled = false;␊ |
249 | ␉␉bool c4_enabled = false;␊ |
250 | bool cst_using_sustemio = false;␊ |
251 | ␉␉␊ |
252 | ␉␉getBoolForKey(kEnableC2State, &c2_enabled, &bootInfo->chameleonConfig);␊ |
253 | ␉␉getBoolForKey(kEnableC3State, &c3_enabled, &bootInfo->chameleonConfig);␊ |
254 | ␉␉getBoolForKey(kEnableC4State, &c4_enabled, &bootInfo->chameleonConfig);␊ |
255 | getBoolForKey(kCSTUsingSystemIO, &cst_using_sustemio, &bootInfo->chameleonConfig);␊ |
256 | ␉␉␊ |
257 | ␉␉c2_enabled = c2_enabled | (fadt->C2_Latency < 100);␊ |
258 | ␉␉c3_enabled = c3_enabled | (fadt->C3_Latency < 1000);␊ |
259 | ␊ |
260 | ␉␉unsigned char cstates_count = 1 + (c2_enabled ? 1 : 0) + (c3_enabled ? 1 : 0);␊ |
261 | ␉␉␊ |
262 | ␉␉struct aml_chunk* root = aml_create_node(NULL);␊ |
263 | ␉␉␉aml_add_buffer(root, ssdt_header, sizeof(ssdt_header)); // SSDT header␊ |
264 | ␉␉␉struct aml_chunk* scop = aml_add_scope(root, "\\_PR_");␊ |
265 | ␉␉␉␉struct aml_chunk* name = aml_add_name(scop, "CST_");␊ |
266 | ␉␉␉␉␉struct aml_chunk* pack = aml_add_package(name);␊ |
267 | ␉␉␉␉␉␉aml_add_byte(pack, cstates_count);␊ |
268 | ␉␉␊ |
269 | ␉␉␉␉␉␉struct aml_chunk* tmpl = aml_add_package(pack);␊ |
270 | if (cst_using_sustemio) ␊ |
271 | { ␊ |
272 | // C1␊ |
273 | resource_template_register_fixedhw[8] = 0x00; ␊ |
274 | resource_template_register_fixedhw[9] = 0x00; ␊ |
275 | resource_template_register_fixedhw[18] = 0x00; ␊ |
276 | aml_add_buffer(tmpl, resource_template_register_fixedhw, sizeof(resource_template_register_fixedhw));␊ |
277 | aml_add_byte(tmpl, 0x01); // C1␊ |
278 | aml_add_word(tmpl, 0x0001); // Latency␊ |
279 | aml_add_dword(tmpl, 0x000003e8); // Power␊ |
280 | ␊ |
281 | uint8_t p_blk_lo, p_blk_hi;␊ |
282 | ␊ |
283 | if (c2_enabled) // C2␊ |
284 | { ␊ |
285 | p_blk_lo = acpi_cpu_p_blk + 4;␊ |
286 | p_blk_hi = (acpi_cpu_p_blk + 4) >> 8;␊ |
287 | ␊ |
288 | tmpl = aml_add_package(pack);␊ |
289 | resource_template_register_systemio[11] = p_blk_lo; // C2␊ |
290 | resource_template_register_systemio[12] = p_blk_hi; // C2␊ |
291 | aml_add_buffer(tmpl, resource_template_register_systemio, sizeof(resource_template_register_systemio));␊ |
292 | aml_add_byte(tmpl, 0x02); // C2␊ |
293 | aml_add_word(tmpl, 0x0040); // Latency␊ |
294 | aml_add_dword(tmpl, 0x000001f4); // Power␊ |
295 | }␊ |
296 | ␊ |
297 | if (c4_enabled) // C4␊ |
298 | {␊ |
299 | p_blk_lo = acpi_cpu_p_blk + 5;␊ |
300 | p_blk_hi = (acpi_cpu_p_blk + 5) >> 8;␊ |
301 | ␊ |
302 | tmpl = aml_add_package(pack);␊ |
303 | resource_template_register_systemio[11] = p_blk_lo; // C4␊ |
304 | resource_template_register_systemio[12] = p_blk_hi; // C4␊ |
305 | aml_add_buffer(tmpl, resource_template_register_systemio, sizeof(resource_template_register_systemio));␊ |
306 | aml_add_byte(tmpl, 0x04); // C4␊ |
307 | aml_add_word(tmpl, 0x0080); // Latency␊ |
308 | aml_add_dword(tmpl, 0x000000C8); // Power␊ |
309 | }␊ |
310 | else if (c3_enabled) // C3␊ |
311 | {␊ |
312 | p_blk_lo = acpi_cpu_p_blk + 5;␊ |
313 | p_blk_hi = (acpi_cpu_p_blk + 5) >> 8;␊ |
314 | ␊ |
315 | tmpl = aml_add_package(pack);␊ |
316 | resource_template_register_systemio[11] = p_blk_lo; // C3␊ |
317 | resource_template_register_systemio[12] = p_blk_hi; // C3␊ |
318 | aml_add_buffer(tmpl, resource_template_register_systemio, sizeof(resource_template_register_systemio));␊ |
319 | aml_add_byte(tmpl, 0x03); // C3␊ |
320 | aml_add_word(tmpl, 0x0060); // Latency␊ |
321 | aml_add_dword(tmpl, 0x0000015e); // Power␊ |
322 | }␊ |
323 | ␊ |
324 | }␊ |
325 | else ␊ |
326 | {␊ |
327 | // C1␊ |
328 | resource_template_register_fixedhw[11] = 0x00; // C1␊ |
329 | aml_add_buffer(tmpl, resource_template_register_fixedhw, sizeof(resource_template_register_fixedhw));␊ |
330 | aml_add_byte(tmpl, 0x01); // C1␊ |
331 | aml_add_word(tmpl, 0x0001); // Latency␊ |
332 | aml_add_dword(tmpl, 0x000003e8); // Power␊ |
333 | ␊ |
334 | resource_template_register_fixedhw[18] = 0x03;␊ |
335 | ␊ |
336 | if (c2_enabled) // C2␊ |
337 | {␊ |
338 | tmpl = aml_add_package(pack);␊ |
339 | resource_template_register_fixedhw[11] = 0x10; // C2␊ |
340 | aml_add_buffer(tmpl, resource_template_register_fixedhw, sizeof(resource_template_register_fixedhw));␊ |
341 | aml_add_byte(tmpl, 0x02); // C2␊ |
342 | aml_add_word(tmpl, 0x0040); // Latency␊ |
343 | aml_add_dword(tmpl, 0x000001f4); // Power␊ |
344 | }␊ |
345 | ␊ |
346 | if (c4_enabled) // C4␊ |
347 | {␊ |
348 | tmpl = aml_add_package(pack);␊ |
349 | resource_template_register_fixedhw[11] = 0x30; // C4␊ |
350 | aml_add_buffer(tmpl, resource_template_register_fixedhw, sizeof(resource_template_register_fixedhw));␊ |
351 | aml_add_byte(tmpl, 0x04); // C4␊ |
352 | aml_add_word(tmpl, 0x0080); // Latency␊ |
353 | aml_add_dword(tmpl, 0x000000C8); // Power␊ |
354 | }␊ |
355 | else if (c3_enabled) ␊ |
356 | {␊ |
357 | tmpl = aml_add_package(pack);␊ |
358 | resource_template_register_fixedhw[11] = 0x20; // C3␊ |
359 | aml_add_buffer(tmpl, resource_template_register_fixedhw, sizeof(resource_template_register_fixedhw));␊ |
360 | aml_add_byte(tmpl, 0x03); // C3␊ |
361 | aml_add_word(tmpl, 0x0060); // Latency␊ |
362 | aml_add_dword(tmpl, 0x0000015e); // Power␊ |
363 | }␊ |
364 | }␊ |
365 | ␉␉␉␉␉␉␉␉␉␉␉␉␉␊ |
366 | ␉␉␉␊ |
367 | ␉␉␉// Aliaces␊ |
368 | ␉␉␉int i;␊ |
369 | ␉␉␉for (i = 0; i < acpi_cpu_count; i++) ␊ |
370 | ␉␉␉{␊ |
371 | ␉␉␉␉char name[9];␊ |
372 | ␉␉␉␉sprintf(name, "_PR_%c%c%c%c", acpi_cpu_name[i][0], acpi_cpu_name[i][1], acpi_cpu_name[i][2], acpi_cpu_name[i][3]);␊ |
373 | ␉␉␉␉␊ |
374 | ␉␉␉␉scop = aml_add_scope(root, name);␊ |
375 | ␉␉␉␉␉aml_add_alias(scop, "CST_", "_CST");␊ |
376 | ␉␉␉}␊ |
377 | ␉␉␊ |
378 | ␉␉aml_calculate_size(root);␊ |
379 | ␉␉␊ |
380 | ␉␉struct acpi_2_ssdt *ssdt = (struct acpi_2_ssdt *)AllocateKernelMemory(root->Size);␊ |
381 | ␉␊ |
382 | ␉␉aml_write_node(root, (void*)ssdt, 0);␊ |
383 | ␉␉␊ |
384 | ␉␉ssdt->Length = root->Size;␊ |
385 | ␉␉ssdt->Checksum = 0;␊ |
386 | ␉␉ssdt->Checksum = 256 - checksum8(ssdt, ssdt->Length);␊ |
387 | ␉␉␊ |
388 | ␉␉aml_destroy_node(root);␊ |
389 | ␉␉␊ |
390 | ␉␉//dumpPhysAddr("C-States SSDT content: ", ssdt, ssdt->Length);␊ |
391 | ␉␉␉␉␊ |
392 | ␉␉verbose ("SSDT with CPU C-States generated successfully\n");␊ |
393 | ␉␉␊ |
394 | ␉␉return ssdt;␊ |
395 | ␉}␊ |
396 | ␉else ␊ |
397 | ␉{␊ |
398 | ␉␉verbose ("ACPI CPUs not found: C-States not generated !!!\n");␊ |
399 | ␉}␊ |
400 | ␊ |
401 | ␉return NULL;␊ |
402 | }␊ |
403 | ␊ |
404 | struct acpi_2_ssdt *generate_pss_ssdt(struct acpi_2_dsdt* dsdt)␊ |
405 | {␉␊ |
406 | ␉char ssdt_header[] =␊ |
407 | ␉{␊ |
408 | ␉␉0x53, 0x53, 0x44, 0x54, 0x7E, 0x00, 0x00, 0x00, /* SSDT.... */␊ |
409 | ␉␉0x01, 0x6A, 0x50, 0x6D, 0x52, 0x65, 0x66, 0x00, /* ..PmRef. */␊ |
410 | ␉␉0x43, 0x70, 0x75, 0x50, 0x6D, 0x00, 0x00, 0x00, /* CpuPm... */␊ |
411 | ␉␉0x00, 0x30, 0x00, 0x00, 0x49, 0x4E, 0x54, 0x4C, /* .0..INTL */␊ |
412 | ␉␉0x31, 0x03, 0x10, 0x20,␉␉␉␉␉␉␉/* 1.._␉␉*/␊ |
413 | ␉};␊ |
414 | ␉␊ |
415 | ␉if (Platform.CPU.Vendor != 0x756E6547) {␊ |
416 | ␉␉verbose ("Not an Intel platform: P-States will not be generated !!!\n");␊ |
417 | ␉␉return NULL;␊ |
418 | ␉}␊ |
419 | ␉␊ |
420 | ␉if (!(Platform.CPU.Features & CPU_FEATURE_MSR)) {␊ |
421 | ␉␉verbose ("Unsupported CPU: P-States will not be generated !!!\n");␊ |
422 | ␉␉return NULL;␊ |
423 | ␉}␊ |
424 | ␉␊ |
425 | ␉if (acpi_cpu_count == 0) ␊ |
426 | ␉␉get_acpi_cpu_names((void*)dsdt, dsdt->Length);␊ |
427 | ␉␊ |
428 | ␉if (acpi_cpu_count > 0) ␊ |
429 | ␉{␊ |
430 | ␉␉struct p_state initial, maximum, minimum, p_states[32];␊ |
431 | ␉␉uint8_t p_states_count = 0;␉␉␊ |
432 | ␉␉␊ |
433 | ␉␉// Retrieving P-States, ported from code by superhai (c)␊ |
434 | ␉␉switch (Platform.CPU.Family) {␊ |
435 | ␉␉␉case 0x06: ␊ |
436 | ␉␉␉{␊ |
437 | ␉␉␉␉switch (Platform.CPU.Model) ␊ |
438 | ␉␉␉␉{␊ |
439 | ␉␉␉␉␉case CPU_MODEL_DOTHAN:␉// Intel Pentium M␊ |
440 | ␉␉␉␉␉case CPU_MODEL_YONAH:␉// Intel Mobile Core Solo, Duo␊ |
441 | ␉␉␉␉␉case CPU_MODEL_MEROM:␉// Intel Mobile Core 2 Solo, Duo, Xeon 30xx, Xeon 51xx, Xeon X53xx, Xeon E53xx, Xeon X32xx␊ |
442 | ␉␉␉␉␉case CPU_MODEL_PENRYN:␉// Intel Core 2 Solo, Duo, Quad, Extreme, Xeon X54xx, Xeon X33xx␊ |
443 | ␉␉␉␉␉case CPU_MODEL_ATOM:␉// Intel Atom (45nm)␊ |
444 | ␉␉␉␉␉{␊ |
445 | ␉␉␉␉␉␉bool cpu_dynamic_fsb = false;␊ |
446 | ␉␉␉␉␉␉␊ |
447 | ␉␉␉␉␉␉if (rdmsr64(MSR_IA32_EXT_CONFIG) & (1 << 27)) ␊ |
448 | ␉␉␉␉␉␉{␊ |
449 | ␉␉␉␉␉␉␉wrmsr64(MSR_IA32_EXT_CONFIG, (rdmsr64(MSR_IA32_EXT_CONFIG) | (1 << 28))); ␊ |
450 | ␉␉␉␉␉␉␉delay(1);␊ |
451 | ␉␉␉␉␉␉␉cpu_dynamic_fsb = rdmsr64(MSR_IA32_EXT_CONFIG) & (1 << 28);␊ |
452 | ␉␉␉␉␉␉}␊ |
453 | ␉␉␉␉␉␉␊ |
454 | ␉␉␉␉␉␉bool cpu_noninteger_bus_ratio = (rdmsr64(MSR_IA32_PERF_STATUS) & (1ULL << 46));␊ |
455 | ␉␉␉␉␉␉␊ |
456 | ␉␉␉␉␉␉initial.Control = rdmsr64(MSR_IA32_PERF_STATUS);␊ |
457 | ␉␉␉␉␉␉␊ |
458 | ␉␉␉␉␉␉maximum.Control = ((rdmsr64(MSR_IA32_PERF_STATUS) >> 32) & 0x1F3F) | (0x4000 * cpu_noninteger_bus_ratio);␊ |
459 | ␉␉␉␉␉␉maximum.CID = ((maximum.FID & 0x1F) << 1) | cpu_noninteger_bus_ratio;␊ |
460 | ␉␉␉␉␉␉␊ |
461 | ␉␉␉␉␉␉minimum.FID = ((rdmsr64(MSR_IA32_PERF_STATUS) >> 24) & 0x1F) | (0x80 * cpu_dynamic_fsb);␊ |
462 | ␉␉␉␉␉␉minimum.VID = ((rdmsr64(MSR_IA32_PERF_STATUS) >> 48) & 0x3F);␊ |
463 | ␉␉␉␉␉␉␊ |
464 | ␉␉␉␉␉␉if (minimum.FID == 0) ␊ |
465 | ␉␉␉␉␉␉{␊ |
466 | ␉␉␉␉␉␉␉uint64_t msr;␊ |
467 | ␉␉␉␉␉␉␉uint8_t i;␊ |
468 | ␉␉␉␉␉␉␉// Probe for lowest fid␊ |
469 | ␉␉␉␉␉␉␉for (i = maximum.FID; i >= 0x6; i--) ␊ |
470 | ␉␉␉␉␉␉␉{␊ |
471 | ␉␉␉␉␉␉␉␉msr = rdmsr64(MSR_IA32_PERF_CONTROL);␊ |
472 | ␉␉␉␉␉␉␉␉wrmsr64(MSR_IA32_PERF_CONTROL, (msr & 0xFFFFFFFFFFFF0000ULL) | (i << 8) | minimum.VID);␊ |
473 | ␉␉␉␉␉␉␉␉intel_waitforsts();␊ |
474 | ␉␉␉␉␉␉␉␉minimum.FID = (rdmsr64(MSR_IA32_PERF_STATUS) >> 8) & 0x1F; ␊ |
475 | ␉␉␉␉␉␉␉␉delay(1);␊ |
476 | ␉␉␉␉␉␉␉}␊ |
477 | ␉␉␉␉␉␉␉␊ |
478 | ␉␉␉␉␉␉␉msr = rdmsr64(MSR_IA32_PERF_CONTROL);␊ |
479 | ␉␉␉␉␉␉␉wrmsr64(MSR_IA32_PERF_CONTROL, (msr & 0xFFFFFFFFFFFF0000ULL) | (maximum.FID << 8) | maximum.VID);␊ |
480 | ␉␉␉␉␉␉␉intel_waitforsts();␊ |
481 | ␉␉␉␉␉␉}␊ |
482 | ␉␉␉␉␉␉␊ |
483 | ␉␉␉␉␉␉if (minimum.VID == maximum.VID) ␊ |
484 | ␉␉␉␉␉␉{␉␊ |
485 | ␉␉␉␉␉␉␉uint64_t msr;␊ |
486 | ␉␉␉␉␉␉␉uint8_t i;␊ |
487 | ␉␉␉␉␉␉␉// Probe for lowest vid␊ |
488 | ␉␉␉␉␉␉␉for (i = maximum.VID; i > 0xA; i--) ␊ |
489 | ␉␉␉␉␉␉␉{␊ |
490 | ␉␉␉␉␉␉␉␉msr = rdmsr64(MSR_IA32_PERF_CONTROL);␊ |
491 | ␉␉␉␉␉␉␉␉wrmsr64(MSR_IA32_PERF_CONTROL, (msr & 0xFFFFFFFFFFFF0000ULL) | (minimum.FID << 8) | i);␊ |
492 | ␉␉␉␉␉␉␉␉intel_waitforsts();␊ |
493 | ␉␉␉␉␉␉␉␉minimum.VID = rdmsr64(MSR_IA32_PERF_STATUS) & 0x3F; ␊ |
494 | ␉␉␉␉␉␉␉␉delay(1);␊ |
495 | ␉␉␉␉␉␉␉}␊ |
496 | ␉␉␉␉␉␉␉␊ |
497 | ␉␉␉␉␉␉␉msr = rdmsr64(MSR_IA32_PERF_CONTROL);␊ |
498 | ␉␉␉␉␉␉␉wrmsr64(MSR_IA32_PERF_CONTROL, (msr & 0xFFFFFFFFFFFF0000ULL) | (maximum.FID << 8) | maximum.VID);␊ |
499 | ␉␉␉␉␉␉␉intel_waitforsts();␊ |
500 | ␉␉␉␉␉␉}␊ |
501 | ␉␉␉␉␉␉␊ |
502 | ␉␉␉␉␉␉minimum.CID = ((minimum.FID & 0x1F) << 1) >> cpu_dynamic_fsb;␊ |
503 | ␉␉␉␉␉␉␊ |
504 | ␉␉␉␉␉␉// Sanity check␊ |
505 | ␉␉␉␉␉␉if (maximum.CID < minimum.CID) ␊ |
506 | ␉␉␉␉␉␉{␊ |
507 | ␉␉␉␉␉␉␉DBG("Insane FID values!");␊ |
508 | ␉␉␉␉␉␉␉p_states_count = 0;␊ |
509 | ␉␉␉␉␉␉}␊ |
510 | ␉␉␉␉␉␉else␊ |
511 | ␉␉␉␉␉␉{␊ |
512 | ␉␉␉␉␉␉␉// Finalize P-States␊ |
513 | ␉␉␉␉␉␉␉// Find how many P-States machine supports␊ |
514 | ␉␉␉␉␉␉␉p_states_count = maximum.CID - minimum.CID + 1;␊ |
515 | ␉␉␉␉␉␉␉␊ |
516 | ␉␉␉␉␉␉␉if (p_states_count > 32) ␊ |
517 | ␉␉␉␉␉␉␉␉p_states_count = 32;␊ |
518 | ␉␉␉␉␉␉␉␊ |
519 | ␉␉␉␉␉␉␉uint8_t vidstep;␊ |
520 | ␉␉␉␉␉␉␉uint8_t i = 0, u, invalid = 0;␊ |
521 | ␉␉␉␉␉␉␉␊ |
522 | ␉␉␉␉␉␉␉vidstep = ((maximum.VID << 2) - (minimum.VID << 2)) / (p_states_count - 1);␊ |
523 | ␉␉␉␉␉␉␉␊ |
524 | ␉␉␉␉␉␉␉for (u = 0; u < p_states_count; u++) ␊ |
525 | ␉␉␉␉␉␉␉{␊ |
526 | ␉␉␉␉␉␉␉␉i = u - invalid;␊ |
527 | ␉␉␉␉␉␉␉␉␊ |
528 | ␉␉␉␉␉␉␉␉p_states[i].CID = maximum.CID - u;␊ |
529 | ␉␉␉␉␉␉␉␉p_states[i].FID = (p_states[i].CID >> 1);␊ |
530 | ␉␉␉␉␉␉␉␉␊ |
531 | ␉␉␉␉␉␉␉␉if (p_states[i].FID < 0x6) ␊ |
532 | ␉␉␉␉␉␉␉␉{␊ |
533 | ␉␉␉␉␉␉␉␉␉if (cpu_dynamic_fsb) ␊ |
534 | ␉␉␉␉␉␉␉␉␉␉p_states[i].FID = (p_states[i].FID << 1) | 0x80;␊ |
535 | ␉␉␉␉␉␉␉␉} ␊ |
536 | ␉␉␉␉␉␉␉␉else if (cpu_noninteger_bus_ratio) ␊ |
537 | ␉␉␉␉␉␉␉␉{␊ |
538 | ␉␉␉␉␉␉␉␉␉p_states[i].FID = p_states[i].FID | (0x40 * (p_states[i].CID & 0x1));␊ |
539 | ␉␉␉␉␉␉␉␉}␊ |
540 | ␉␉␉␉␉␉␉␉␊ |
541 | ␉␉␉␉␉␉␉␉if (i && p_states[i].FID == p_states[i-1].FID)␊ |
542 | ␉␉␉␉␉␉␉␉␉invalid++;␊ |
543 | ␉␉␉␉␉␉␉␉␊ |
544 | ␉␉␉␉␉␉␉␉p_states[i].VID = ((maximum.VID << 2) - (vidstep * u)) >> 2;␊ |
545 | ␉␉␉␉␉␉␉␉␊ |
546 | ␉␉␉␉␉␉␉␉uint32_t multiplier = p_states[i].FID & 0x1f;␉␉// = 0x08␊ |
547 | ␉␉␉␉␉␉␉␉bool half = p_states[i].FID & 0x40;␉␉␉␉␉// = 0x01␊ |
548 | ␉␉␉␉␉␉␉␉bool dfsb = p_states[i].FID & 0x80;␉␉␉␉␉// = 0x00␊ |
549 | ␉␉␉␉␉␉␉␉uint32_t fsb = Platform.CPU.FSBFrequency / 1000000; // = 400␊ |
550 | ␉␉␉␉␉␉␉␉uint32_t halffsb = (fsb + 1) >> 1;␉␉␉␉␉// = 200␊ |
551 | ␉␉␉␉␉␉␉␉uint32_t frequency = (multiplier * fsb);␉␉␉// = 3200␊ |
552 | ␉␉␉␉␉␉␉␉␊ |
553 | ␉␉␉␉␉␉␉␉p_states[i].Frequency = (frequency + (half * halffsb)) >> dfsb;␉// = 3200 + 200 = 3400␊ |
554 | ␉␉␉␉␉␉␉}␊ |
555 | ␉␉␉␉␉␉␉␊ |
556 | ␉␉␉␉␉␉␉p_states_count -= invalid;␊ |
557 | ␉␉␉␉␉␉}␊ |
558 | ␉␉␉␉␉␉␊ |
559 | ␉␉␉␉␉␉break;␊ |
560 | ␉␉␉␉␉} ␊ |
561 | ␉␉␉␉␉case CPU_MODEL_FIELDS:␉␉// Intel Core i5, i7, Xeon X34xx LGA1156 (45nm)␊ |
562 | ␉␉␉␉␉case CPU_MODEL_DALES:␉␉␊ |
563 | ␉␉␉␉␉case CPU_MODEL_DALES_32NM:␉// Intel Core i3, i5 LGA1156 (32nm)␊ |
564 | ␉␉␉␉␉case CPU_MODEL_NEHALEM:␉␉// Intel Core i7, Xeon W35xx, Xeon X55xx, Xeon E55xx LGA1366 (45nm)␊ |
565 | ␉␉␉␉␉case CPU_MODEL_NEHALEM_EX:␉// Intel Xeon X75xx, Xeon X65xx, Xeon E75xx, Xeon E65xx␊ |
566 | ␉␉␉␉␉case CPU_MODEL_WESTMERE:␉// Intel Core i7, Xeon X56xx, Xeon E56xx, Xeon W36xx LGA1366 (32nm) 6 Core␊ |
567 | ␉␉␉␉␉case CPU_MODEL_WESTMERE_EX:␉// Intel Xeon E7␊ |
568 | case CPU_MODEL_SANDY:␉␉// Intel Core i3, i5, i7 LGA1155 (32nm)␊ |
569 | case CPU_MODEL_SANDY_XEON:␉// Intel Xeon E3␊ |
570 | ␉␉␉␉␉{␊ |
571 | ␉␉␉␉␉␉maximum.Control = rdmsr64(MSR_IA32_PERF_STATUS) & 0xff; // Seems it always contains maximum multiplier value (with turbo, that's we need)...␊ |
572 | ␉␉␉␉␉␉minimum.Control = (rdmsr64(MSR_PLATFORM_INFO) >> 40) & 0xff;␊ |
573 | ␉␉␉␉␉␉␊ |
574 | ␉␉␉␉␉␉verbose("P-States: min 0x%x, max 0x%x\n", minimum.Control, maximum.Control);␉␉␉␊ |
575 | ␉␉␉␉␉␉␊ |
576 | ␉␉␉␉␉␉// Sanity check␊ |
577 | ␉␉␉␉␉␉if (maximum.Control < minimum.Control) ␊ |
578 | ␉␉␉␉␉␉{␊ |
579 | ␉␉␉␉␉␉␉DBG("Insane control values!");␊ |
580 | ␉␉␉␉␉␉␉p_states_count = 0;␊ |
581 | ␉␉␉␉␉␉}␊ |
582 | ␉␉␉␉␉␉else␊ |
583 | ␉␉␉␉␉␉{␊ |
584 | ␉␉␉␉␉␉␉uint8_t i;␊ |
585 | ␉␉␉␉␉␉␉p_states_count = 0;␊ |
586 | ␉␉␉␉␉␉␉␊ |
587 | ␉␉␉␉␉␉␉for (i = maximum.Control; i >= minimum.Control; i--) ␊ |
588 | ␉␉␉␉␉␉␉{␊ |
589 | ␉␉␉␉␉␉␉␉p_states[p_states_count].Control = i;␊ |
590 | ␉␉␉␉␉␉␉␉p_states[p_states_count].CID = p_states[p_states_count].Control << 1;␊ |
591 | ␉␉␉␉␉␉␉␉p_states[p_states_count].Frequency = (Platform.CPU.FSBFrequency / 1000000) * i;␊ |
592 | ␉␉␉␉␉␉␉␉p_states_count++;␊ |
593 | ␉␉␉␉␉␉␉}␊ |
594 | ␉␉␉␉␉␉}␊ |
595 | ␉␉␉␉␉␉␊ |
596 | ␉␉␉␉␉␉break;␊ |
597 | ␉␉␉␉␉}␉␊ |
598 | ␉␉␉␉␉default:␊ |
599 | ␉␉␉␉␉␉verbose ("Unsupported CPU: P-States not generated !!!\n");␊ |
600 | ␉␉␉␉␉␉break;␊ |
601 | ␉␉␉␉}␊ |
602 | ␉␉␉}␊ |
603 | ␉␉}␊ |
604 | ␉␉␊ |
605 | ␉␉// Generating SSDT␊ |
606 | ␉␉if (p_states_count > 0) ␊ |
607 | ␉␉{␉␊ |
608 | ␉␉␉int i;␊ |
609 | ␉␉␉␊ |
610 | ␉␉␉struct aml_chunk* root = aml_create_node(NULL);␊ |
611 | ␉␉␉␉aml_add_buffer(root, ssdt_header, sizeof(ssdt_header)); // SSDT header␊ |
612 | ␉␉␉␉␉struct aml_chunk* scop = aml_add_scope(root, "\\_PR_");␊ |
613 | ␉␉␉␉␉␉struct aml_chunk* name = aml_add_name(scop, "PSS_");␊ |
614 | ␉␉␉␉␉␉␉struct aml_chunk* pack = aml_add_package(name);␊ |
615 | ␉␉␉␊ |
616 | ␉␉␉␉␉␉␉␉for (i = 0; i < p_states_count; i++) ␊ |
617 | ␉␉␉␉␉␉␉␉{␊ |
618 | ␉␉␉␉␉␉␉␉␉struct aml_chunk* pstt = aml_add_package(pack);␊ |
619 | ␉␉␉␉␉␉␉␉␉␊ |
620 | ␉␉␉␉␉␉␉␉␉aml_add_dword(pstt, p_states[i].Frequency);␊ |
621 | ␉␉␉␉␉␉␉␉␉aml_add_dword(pstt, 0x00000000); // Power␊ |
622 | ␉␉␉␉␉␉␉␉␉aml_add_dword(pstt, 0x0000000A); // Latency␊ |
623 | ␉␉␉␉␉␉␉␉␉aml_add_dword(pstt, 0x0000000A); // Latency␊ |
624 | ␉␉␉␉␉␉␉␉␉aml_add_dword(pstt, p_states[i].Control);␊ |
625 | ␉␉␉␉␉␉␉␉␉aml_add_dword(pstt, i+1); // Status␊ |
626 | ␉␉␉␉␉␉␉␉}␊ |
627 | ␉␉␉␉␊ |
628 | ␉␉␉// Add aliaces␊ |
629 | ␉␉␉for (i = 0; i < acpi_cpu_count; i++) ␊ |
630 | ␉␉␉{␊ |
631 | ␉␉␉␉char name[9];␊ |
632 | ␉␉␉␉sprintf(name, "_PR_%c%c%c%c", acpi_cpu_name[i][0], acpi_cpu_name[i][1], acpi_cpu_name[i][2], acpi_cpu_name[i][3]);␊ |
633 | ␉␉␉␉␊ |
634 | ␉␉␉␉scop = aml_add_scope(root, name);␊ |
635 | ␉␉␉␉aml_add_alias(scop, "PSS_", "_PSS");␊ |
636 | ␉␉␉}␊ |
637 | ␉␉␉␊ |
638 | ␉␉␉aml_calculate_size(root);␊ |
639 | ␉␉␉␊ |
640 | ␉␉␉struct acpi_2_ssdt *ssdt = (struct acpi_2_ssdt *)AllocateKernelMemory(root->Size);␊ |
641 | ␉␉␉␊ |
642 | ␉␉␉aml_write_node(root, (void*)ssdt, 0);␊ |
643 | ␉␉␉␊ |
644 | ␉␉␉ssdt->Length = root->Size;␊ |
645 | ␉␉␉ssdt->Checksum = 0;␊ |
646 | ␉␉␉ssdt->Checksum = 256 - checksum8(ssdt, ssdt->Length);␊ |
647 | ␉␉␉␊ |
648 | ␉␉␉aml_destroy_node(root);␊ |
649 | ␉␉␉␊ |
650 | ␉␉␉//dumpPhysAddr("P-States SSDT content: ", ssdt, ssdt->Length);␊ |
651 | ␉␉␉␊ |
652 | ␉␉␉verbose ("SSDT with CPU P-States generated successfully\n");␊ |
653 | ␉␉␉␊ |
654 | ␉␉␉return ssdt;␊ |
655 | ␉␉}␊ |
656 | ␉}␊ |
657 | ␉else ␊ |
658 | ␉{␊ |
659 | ␉␉verbose ("ACPI CPUs not found: P-States not generated !!!\n");␊ |
660 | ␉}␊ |
661 | ␉␊ |
662 | ␉return NULL;␊ |
663 | }␊ |
664 | ␊ |
665 | struct acpi_2_fadt *patch_fadt(struct acpi_2_fadt *fadt, struct acpi_2_dsdt *new_dsdt)␊ |
666 | {␊ |
667 | ␉extern void setupSystemType(); ␊ |
668 | ␉␊ |
669 | ␉struct acpi_2_fadt *fadt_mod;␊ |
670 | ␉bool fadt_rev2_needed = false;␊ |
671 | ␉bool fix_restart;␊ |
672 | ␉const char * value;␊ |
673 | ␉␊ |
674 | ␉// Restart Fix␊ |
675 | ␉if (Platform.CPU.Vendor == 0x756E6547) {␉/* Intel */␊ |
676 | ␉␉fix_restart = true;␊ |
677 | ␉␉getBoolForKey(kRestartFix, &fix_restart, &bootInfo->chameleonConfig);␊ |
678 | ␉} else {␊ |
679 | ␉␉verbose ("Not an Intel platform: Restart Fix not applied !!!\n");␊ |
680 | ␉␉fix_restart = false;␊ |
681 | ␉}␊ |
682 | ␉␊ |
683 | ␉if (fix_restart) fadt_rev2_needed = true;␊ |
684 | ␉␊ |
685 | ␉// Allocate new fadt table␊ |
686 | ␉if (fadt->Length < 0x84 && fadt_rev2_needed)␊ |
687 | ␉{␊ |
688 | ␉␉fadt_mod=(struct acpi_2_fadt *)AllocateKernelMemory(0x84);␊ |
689 | ␉␉memcpy(fadt_mod, fadt, fadt->Length);␊ |
690 | ␉␉fadt_mod->Length = 0x84;␊ |
691 | ␉␉fadt_mod->Revision = 0x02; // FADT rev 2 (ACPI 1.0B MS extensions)␊ |
692 | ␉}␊ |
693 | ␉else␊ |
694 | ␉{␊ |
695 | ␉␉fadt_mod=(struct acpi_2_fadt *)AllocateKernelMemory(fadt->Length);␊ |
696 | ␉␉memcpy(fadt_mod, fadt, fadt->Length);␊ |
697 | ␉}␊ |
698 | ␉// Determine system type / PM_Model␊ |
699 | ␉if ( (value=getStringForKey(kSystemType, &bootInfo->chameleonConfig))!=NULL)␊ |
700 | ␉{␊ |
701 | ␉␉if (Platform.Type > 6) ␊ |
702 | ␉␉{␊ |
703 | ␉␉␉if(fadt_mod->PM_Profile<=6)␊ |
704 | ␉␉␉␉Platform.Type = fadt_mod->PM_Profile; // get the fadt if correct␊ |
705 | ␉␉␉else ␊ |
706 | ␉␉␉␉Platform.Type = 1;␉␉/* Set a fixed value (Desktop) */␊ |
707 | ␉␉␉verbose("Error: system-type must be 0..6. Defaulting to %d !\n", Platform.Type);␊ |
708 | ␉␉}␊ |
709 | ␉␉else␊ |
710 | ␉␉␉Platform.Type = (unsigned char) strtoul(value, NULL, 10);␊ |
711 | ␉}␊ |
712 | ␉// Set PM_Profile from System-type if only user wanted this value to be forced␊ |
713 | ␉if (fadt_mod->PM_Profile != Platform.Type) ␊ |
714 | ␉{␊ |
715 | ␉ if (value) ␊ |
716 | ␉␉{ // user has overriden the SystemType so take care of it in FACP␊ |
717 | ␉␉␉verbose("FADT: changing PM_Profile from 0x%02x to 0x%02x\n", fadt_mod->PM_Profile, Platform.Type);␊ |
718 | ␉␉␉fadt_mod->PM_Profile = Platform.Type;␊ |
719 | ␉ }␊ |
720 | ␉ else␊ |
721 | ␉ { // PM_Profile has a different value and no override has been set, so reflect the user value to ioregs␊ |
722 | ␉␉␉Platform.Type = fadt_mod->PM_Profile <= 6 ? fadt_mod->PM_Profile : 1;␊ |
723 | ␉ } ␊ |
724 | ␉}␊ |
725 | ␉// We now have to write the systemm-type in ioregs: we cannot do it before in setupDeviceTree()␊ |
726 | ␉// because we need to take care of facp original content, if it is correct.␊ |
727 | ␉setupSystemType();␊ |
728 | ␉␊ |
729 | ␉// Patch FADT to fix restart␊ |
730 | ␉if (fix_restart)␊ |
731 | ␉{␊ |
732 | ␉␉fadt_mod->Flags|= 0x400;␊ |
733 | ␉␉fadt_mod->Reset_SpaceID␉␉= 0x01; // System I/O␊ |
734 | ␉␉fadt_mod->Reset_BitWidth␉= 0x08; // 1 byte␊ |
735 | ␉␉fadt_mod->Reset_BitOffset␉= 0x00; // Offset 0␊ |
736 | ␉␉fadt_mod->Reset_AccessWidth␉= 0x01; // Byte access␊ |
737 | ␉␉fadt_mod->Reset_Address␉␉= 0x0cf9; // Address of the register␊ |
738 | ␉␉fadt_mod->Reset_Value␉␉= 0x06; // Value to write to reset the system␊ |
739 | ␉␉verbose("FADT: Restart Fix applied!\n");␊ |
740 | ␉}␊ |
741 | ␉␊ |
742 | ␉// Patch DSDT Address if we have loaded DSDT.aml␊ |
743 | ␉if(new_dsdt)␊ |
744 | ␉{␊ |
745 | ␉␉DBG("DSDT: Old @%x,%x, ",fadt_mod->DSDT,fadt_mod->X_DSDT);␊ |
746 | ␉␉␊ |
747 | ␉␉fadt_mod->DSDT=(uint32_t)new_dsdt;␊ |
748 | ␉␉if ((uint32_t)(&(fadt_mod->X_DSDT))-(uint32_t)fadt_mod+8<=fadt_mod->Length)␊ |
749 | ␉␉␉fadt_mod->X_DSDT=(uint32_t)new_dsdt;␊ |
750 | ␉␉␊ |
751 | ␉␉DBG("New @%x,%x\n",fadt_mod->DSDT,fadt_mod->X_DSDT);␊ |
752 | ␉␉␊ |
753 | ␉␉verbose("FADT: Using custom DSDT!\n");␊ |
754 | ␉}␊ |
755 | ␉␊ |
756 | ␉// Correct the checksum␊ |
757 | ␉fadt_mod->Checksum=0;␊ |
758 | ␉fadt_mod->Checksum=256-checksum8(fadt_mod,fadt_mod->Length);␊ |
759 | ␉␊ |
760 | ␉return fadt_mod;␊ |
761 | }␊ |
762 | ␊ |
763 | /* Setup ACPI without replacing DSDT. */␊ |
764 | int setupAcpiNoMod()␊ |
765 | {␊ |
766 | ␉//␉addConfigurationTable(&gEfiAcpiTableGuid, getAddressOfAcpiTable(), "ACPI");␊ |
767 | ␉//␉addConfigurationTable(&gEfiAcpi20TableGuid, getAddressOfAcpi20Table(), "ACPI_20");␊ |
768 | ␉/* XXX aserebln why uint32 cast if pointer is uint64 ? */␊ |
769 | ␉acpi10_p = (uint32_t)getAddressOfAcpiTable();␊ |
770 | ␉acpi20_p = (uint32_t)getAddressOfAcpi20Table();␊ |
771 | ␉addConfigurationTable(&gEfiAcpiTableGuid, &acpi10_p, "ACPI");␊ |
772 | ␉if(acpi20_p) addConfigurationTable(&gEfiAcpi20TableGuid, &acpi20_p, "ACPI_20");␊ |
773 | ␉return 1;␊ |
774 | }␊ |
775 | ␊ |
776 | /* Setup ACPI. Replace DSDT if DSDT.aml is found */␊ |
777 | int setupAcpi(void)␊ |
778 | {␊ |
779 | ␉int version;␊ |
780 | ␉void *new_dsdt;␊ |
781 | ␊ |
782 | ␉const char *filename;␊ |
783 | ␉char dirSpec[128];␊ |
784 | ␉int len = 0;␊ |
785 | ␊ |
786 | ␉// Try using the file specified with the DSDT option␊ |
787 | ␉if (getValueForKey(kDSDT, &filename, &len, &bootInfo->chameleonConfig))␊ |
788 | ␉{␊ |
789 | ␉␉sprintf(dirSpec, filename);␊ |
790 | ␉}␊ |
791 | ␉else␊ |
792 | ␉{␊ |
793 | ␉␉sprintf(dirSpec, "DSDT.aml");␊ |
794 | ␉}␊ |
795 | ␉␊ |
796 | ␉// Load replacement DSDT␊ |
797 | ␉new_dsdt = loadACPITable(dirSpec);␊ |
798 | ␉// Mozodojo: going to patch FACP and load SSDT's even if DSDT.aml is not present␊ |
799 | ␉/*if (!new_dsdt)␊ |
800 | ␉ {␊ |
801 | ␉ return setupAcpiNoMod();␊ |
802 | ␉ }*/␊ |
803 | ␉␊ |
804 | ␉// Mozodojo: Load additional SSDTs␊ |
805 | ␉struct acpi_2_ssdt *new_ssdt[32]; // 30 + 2 additional tables for pss & cst␊ |
806 | ␉int ssdt_count=0;␊ |
807 | ␉␊ |
808 | ␉// SSDT Options␊ |
809 | ␉bool drop_ssdt=false, generate_pstates=false, generate_cstates=false; ␊ |
810 | ␉␊ |
811 | ␉getBoolForKey(kDropSSDT, &drop_ssdt, &bootInfo->chameleonConfig);␊ |
812 | ␉getBoolForKey(kGeneratePStates, &generate_pstates, &bootInfo->chameleonConfig);␊ |
813 | ␉getBoolForKey(kGenerateCStates, &generate_cstates, &bootInfo->chameleonConfig);␊ |
814 | ␉␊ |
815 | ␉{␊ |
816 | ␉␉int i;␊ |
817 | ␉␉␊ |
818 | ␉␉for (i=0; i<30; i++)␊ |
819 | ␉␉{␊ |
820 | ␉␉␉char filename[512];␊ |
821 | ␊ |
822 | ␉␉␉sprintf(filename, i>0?"SSDT-%d.aml":"SSDT.aml", i);␊ |
823 | ␉␉␉␊ |
824 | ␉␉␉if(new_ssdt[ssdt_count] = loadACPITable(filename)) ␊ |
825 | ␉␉␉{␉␉␉␉␊ |
826 | ␉␉␉␉ssdt_count++;␊ |
827 | ␉␉␉}␊ |
828 | ␉␉␉else ␊ |
829 | ␉␉␉{␊ |
830 | ␉␉␉␉break;␊ |
831 | ␉␉␉}␊ |
832 | ␉␉}␊ |
833 | ␉}␊ |
834 | ␉␉␊ |
835 | ␉// Do the same procedure for both versions of ACPI␊ |
836 | ␉for (version=0; version<2; version++) {␊ |
837 | ␉␉struct acpi_2_rsdp *rsdp, *rsdp_mod;␊ |
838 | ␉␉struct acpi_2_rsdt *rsdt, *rsdt_mod;␊ |
839 | ␉␉int rsdplength;␊ |
840 | ␉␉␊ |
841 | ␉␉// Find original rsdp␊ |
842 | ␉␉rsdp=(struct acpi_2_rsdp *)(version?getAddressOfAcpi20Table():getAddressOfAcpiTable());␊ |
843 | ␉␉if (!rsdp)␊ |
844 | ␉␉{␊ |
845 | ␉␉␉DBG("No ACPI version %d found. Ignoring\n", version+1);␊ |
846 | ␉␉␉if (version)␊ |
847 | ␉␉␉␉addConfigurationTable(&gEfiAcpi20TableGuid, NULL, "ACPI_20");␊ |
848 | ␉␉␉else␊ |
849 | ␉␉␉␉addConfigurationTable(&gEfiAcpiTableGuid, NULL, "ACPI");␊ |
850 | ␉␉␉continue;␊ |
851 | ␉␉}␊ |
852 | ␉␉rsdplength=version?rsdp->Length:20;␊ |
853 | ␉␉␊ |
854 | ␉␉DBG("RSDP version %d found @%x. Length=%d\n",version+1,rsdp,rsdplength);␊ |
855 | ␉␉␊ |
856 | ␉␉/* FIXME: no check that memory allocation succeeded ␊ |
857 | ␉␉ * Copy and patch RSDP,RSDT, XSDT and FADT␊ |
858 | ␉␉ * For more info see ACPI Specification pages 110 and following␊ |
859 | ␉␉ */␊ |
860 | ␉␉␊ |
861 | ␉␉rsdp_mod=(struct acpi_2_rsdp *) AllocateKernelMemory(rsdplength);␊ |
862 | ␉␉memcpy(rsdp_mod, rsdp, rsdplength); ␊ |
863 | ␉␉rsdt=(struct acpi_2_rsdt *)(rsdp->RsdtAddress);␊ |
864 | ␉␉␊ |
865 | ␉␉DBG("RSDT @%x, Length %d\n",rsdt, rsdt->Length);␊ |
866 | ␉␉␊ |
867 | ␉␉if (rsdt && (uint32_t)rsdt !=0xffffffff && rsdt->Length<0x10000)␊ |
868 | ␉␉{␊ |
869 | ␉␉␉uint32_t *rsdt_entries;␊ |
870 | ␉␉␉int rsdt_entries_num;␊ |
871 | ␉␉␉int dropoffset=0, i;␊ |
872 | ␉␉␉␊ |
873 | ␉␉␉// mozo: using malloc cos I didn't found how to free already allocated kernel memory␊ |
874 | ␉␉␉rsdt_mod=(struct acpi_2_rsdt *)malloc(rsdt->Length); ␊ |
875 | ␉␉␉memcpy (rsdt_mod, rsdt, rsdt->Length);␊ |
876 | ␉␉␉rsdp_mod->RsdtAddress=(uint32_t)rsdt_mod;␊ |
877 | ␉␉␉rsdt_entries_num=(rsdt_mod->Length-sizeof(struct acpi_2_rsdt))/4;␊ |
878 | ␉␉␉rsdt_entries=(uint32_t *)(rsdt_mod+1);␊ |
879 | ␉␉␉for (i=0;i<rsdt_entries_num;i++)␊ |
880 | ␉␉␉{␊ |
881 | ␉␉␉␉char *table=(char *)(rsdt_entries[i]);␊ |
882 | ␉␉␉␉if (!table)␊ |
883 | ␉␉␉␉␉continue;␊ |
884 | ␉␉␉␉␊ |
885 | ␉␉␉␉DBG("TABLE %c%c%c%c,",table[0],table[1],table[2],table[3]);␊ |
886 | ␉␉␉␉␊ |
887 | ␉␉␉␉rsdt_entries[i-dropoffset]=rsdt_entries[i];␊ |
888 | ␉␉␉␉␊ |
889 | ␉␉␉␉if (drop_ssdt && tableSign(table, "SSDT"))␊ |
890 | ␉␉␉␉{␊ |
891 | ␉␉␉␉␉dropoffset++;␊ |
892 | ␉␉␉␉␉continue;␊ |
893 | ␉␉␉␉}␊ |
894 | ␉␉␉␉if (tableSign(table, "DSDT"))␊ |
895 | ␉␉␉␉{␊ |
896 | ␉␉␉␉␉DBG("DSDT found\n");␊ |
897 | ␉␉␉␉␉␊ |
898 | ␉␉␉␉␉if(new_dsdt)␊ |
899 | ␉␉␉␉␉␉rsdt_entries[i-dropoffset]=(uint32_t)new_dsdt;␊ |
900 | ␉␉␉␉␉␉␉␉␉␉␊ |
901 | ␉␉␉␉␉continue;␊ |
902 | ␉␉␉␉}␊ |
903 | ␉␉␉␉if (tableSign(table, "FACP"))␊ |
904 | ␉␉␉␉{␊ |
905 | ␉␉␉␉␉struct acpi_2_fadt *fadt, *fadt_mod;␊ |
906 | ␉␉␉␉␉fadt=(struct acpi_2_fadt *)rsdt_entries[i];␊ |
907 | ␉␉␉␉␉␊ |
908 | ␉␉␉␉␉DBG("FADT found @%x, Length %d\n",fadt, fadt->Length);␊ |
909 | ␉␉␉␉␉␊ |
910 | ␉␉␉␉␉if (!fadt || (uint32_t)fadt == 0xffffffff || fadt->Length>0x10000)␊ |
911 | ␉␉␉␉␉{␊ |
912 | ␉␉␉␉␉␉printf("FADT incorrect. Not modified\n");␊ |
913 | ␉␉␉␉␉␉continue;␊ |
914 | ␉␉␉␉␉}␊ |
915 | ␉␉␉␉␉␊ |
916 | ␉␉␉␉␉fadt_mod = patch_fadt(fadt, new_dsdt);␊ |
917 | ␉␉␉␉␉rsdt_entries[i-dropoffset]=(uint32_t)fadt_mod;␊ |
918 | ␉␉␉␉␉␊ |
919 | ␉␉␉␉␉// Generate _CST SSDT␊ |
920 | ␉␉␉␉␉if (generate_cstates && (new_ssdt[ssdt_count] = generate_cst_ssdt(fadt_mod)))␊ |
921 | ␉␉␉␉␉{␊ |
922 | ␉␉␉␉␉␉generate_cstates = false; // Generate SSDT only once!␊ |
923 | ␉␉␉␉␉␉ssdt_count++;␊ |
924 | ␉␉␉␉␉}␊ |
925 | ␉␉␉␉␉␊ |
926 | ␉␉␉␉␉// Generating _PSS SSDT␊ |
927 | ␉␉␉␉␉if (generate_pstates && (new_ssdt[ssdt_count] = generate_pss_ssdt((void*)fadt_mod->DSDT)))␊ |
928 | ␉␉␉␉␉{␊ |
929 | ␉␉␉␉␉␉generate_pstates = false; // Generate SSDT only once!␊ |
930 | ␉␉␉␉␉␉ssdt_count++;␊ |
931 | ␉␉␉␉␉}␊ |
932 | ␉␉␉␉␉␊ |
933 | ␉␉␉␉␉continue;␊ |
934 | ␉␉␉␉}␊ |
935 | ␉␉␉}␊ |
936 | ␉␉␉DBG("\n");␊ |
937 | ␉␉␉␊ |
938 | ␉␉␉// Allocate rsdt in Kernel memory area␊ |
939 | ␉␉␉rsdt_mod->Length += 4*ssdt_count - 4*dropoffset;␊ |
940 | ␉␉␉struct acpi_2_rsdt *rsdt_copy = (struct acpi_2_rsdt *)AllocateKernelMemory(rsdt_mod->Length);␊ |
941 | ␉␉␉memcpy (rsdt_copy, rsdt_mod, rsdt_mod->Length);␊ |
942 | ␉␉␉free(rsdt_mod); rsdt_mod = rsdt_copy;␊ |
943 | ␉␉␉rsdp_mod->RsdtAddress=(uint32_t)rsdt_mod;␊ |
944 | ␉␉␉rsdt_entries_num=(rsdt_mod->Length-sizeof(struct acpi_2_rsdt))/4;␊ |
945 | ␉␉␉rsdt_entries=(uint32_t *)(rsdt_mod+1);␊ |
946 | ␉␉␉␊ |
947 | ␉␉␉// Mozodojo: Insert additional SSDTs into RSDT␊ |
948 | ␉␉␉if(ssdt_count>0)␊ |
949 | ␉␉␉{␊ |
950 | ␉␉␉␉int j;␊ |
951 | ␉␉␉␉␊ |
952 | ␉␉␉␉for (j=0; j<ssdt_count; j++)␊ |
953 | ␉␉␉␉␉rsdt_entries[i-dropoffset+j]=(uint32_t)new_ssdt[j];␊ |
954 | ␉␉␉␉␉␊ |
955 | ␉␉␉␉verbose("RSDT: Added %d SSDT table(s)\n", ssdt_count);␊ |
956 | ␉␉␉}␊ |
957 | ␊ |
958 | ␉␉␉// Correct the checksum of RSDT␊ |
959 | ␉␉␉DBG("RSDT: Original checksum %d, ", rsdt_mod->Checksum);␊ |
960 | ␉␉␉␊ |
961 | ␉␉␉rsdt_mod->Checksum=0;␊ |
962 | ␉␉␉rsdt_mod->Checksum=256-checksum8(rsdt_mod,rsdt_mod->Length);␊ |
963 | ␉␉␉␊ |
964 | ␉␉␉DBG("New checksum %d at %x\n", rsdt_mod->Checksum,rsdt_mod);␊ |
965 | ␉␉}␊ |
966 | ␉␉else␊ |
967 | ␉␉{␊ |
968 | ␉␉␉rsdp_mod->RsdtAddress=0;␊ |
969 | ␉␉␉printf("RSDT not found or RSDT incorrect\n");␊ |
970 | ␉␉}␊ |
971 | ␉␉␊ |
972 | ␉␉if (version)␊ |
973 | ␉␉{␊ |
974 | ␉␉␉struct acpi_2_xsdt *xsdt, *xsdt_mod;␊ |
975 | ␉␉␉␊ |
976 | ␉␉␉// FIXME: handle 64-bit address correctly␊ |
977 | ␉␉␉␊ |
978 | ␉␉␉xsdt=(struct acpi_2_xsdt*) ((uint32_t)rsdp->XsdtAddress);␊ |
979 | ␉␉␉DBG("XSDT @%x;%x, Length=%d\n", (uint32_t)(rsdp->XsdtAddress>>32),(uint32_t)rsdp->XsdtAddress,␊ |
980 | ␉␉␉␉xsdt->Length);␊ |
981 | ␉␉␉if (xsdt && (uint64_t)rsdp->XsdtAddress<0xffffffff && xsdt->Length<0x10000)␊ |
982 | ␉␉␉{␊ |
983 | ␉␉␉␉uint64_t *xsdt_entries;␊ |
984 | ␉␉␉␉int xsdt_entries_num, i;␊ |
985 | ␉␉␉␉int dropoffset=0;␊ |
986 | ␉␉␉␉␊ |
987 | ␉␉␉␉// mozo: using malloc cos I didn't found how to free already allocated kernel memory␊ |
988 | ␉␉␉␉xsdt_mod=(struct acpi_2_xsdt*)malloc(xsdt->Length); ␊ |
989 | ␉␉␉␉memcpy(xsdt_mod, xsdt, xsdt->Length);␊ |
990 | ␉␉␉␉rsdp_mod->XsdtAddress=(uint32_t)xsdt_mod;␊ |
991 | ␉␉␉␉xsdt_entries_num=(xsdt_mod->Length-sizeof(struct acpi_2_xsdt))/8;␊ |
992 | ␉␉␉␉xsdt_entries=(uint64_t *)(xsdt_mod+1);␊ |
993 | ␉␉␉␉for (i=0;i<xsdt_entries_num;i++)␊ |
994 | ␉␉␉␉{␊ |
995 | ␉␉␉␉␉char *table=(char *)((uint32_t)(xsdt_entries[i]));␊ |
996 | ␉␉␉␉␉if (!table)␊ |
997 | ␉␉␉␉␉␉continue;␊ |
998 | ␉␉␉␉␉␊ |
999 | ␉␉␉␉␉xsdt_entries[i-dropoffset]=xsdt_entries[i];␊ |
1000 | ␉␉␉␉␉␊ |
1001 | ␉␉␉␉␉if (drop_ssdt && tableSign(table, "SSDT"))␊ |
1002 | ␉␉␉␉␉{␊ |
1003 | ␉␉␉␉␉␉dropoffset++;␊ |
1004 | ␉␉␉␉␉␉continue;␊ |
1005 | ␉␉␉␉␉}␉␉␉␉␉␊ |
1006 | ␉␉␉␉␉if (tableSign(table, "DSDT"))␊ |
1007 | ␉␉␉␉␉{␊ |
1008 | ␉␉␉␉␉␉DBG("DSDT found\n");␊ |
1009 | ␉␉␉␉␉␉␊ |
1010 | ␉␉␉␉␉␉if (new_dsdt) ␊ |
1011 | ␉␉␉␉␉␉␉xsdt_entries[i-dropoffset]=(uint32_t)new_dsdt;␊ |
1012 | ␉␉␉␉␉␉␊ |
1013 | ␉␉␉␉␉␉DBG("TABLE %c%c%c%c@%x,",table[0],table[1],table[2],table[3],xsdt_entries[i]);␊ |
1014 | ␉␉␉␉␉␉␊ |
1015 | ␉␉␉␉␉␉continue;␊ |
1016 | ␉␉␉␉␉}␊ |
1017 | ␉␉␉␉␉if (tableSign(table, "FACP"))␊ |
1018 | ␉␉␉␉␉{␊ |
1019 | ␉␉␉␉␉␉struct acpi_2_fadt *fadt, *fadt_mod;␊ |
1020 | ␉␉␉␉␉␉fadt=(struct acpi_2_fadt *)(uint32_t)xsdt_entries[i];␊ |
1021 | ␉␉␉␉␉␉␊ |
1022 | ␉␉␉␉␉␉DBG("FADT found @%x,%x, Length %d\n",(uint32_t)(xsdt_entries[i]>>32),fadt, ␊ |
1023 | ␉␉␉␉␉␉␉fadt->Length);␊ |
1024 | ␉␉␉␉␉␉␊ |
1025 | ␉␉␉␉␉␉if (!fadt || (uint64_t)xsdt_entries[i] >= 0xffffffff || fadt->Length>0x10000)␊ |
1026 | ␉␉␉␉␉␉{␊ |
1027 | ␉␉␉␉␉␉␉verbose("FADT incorrect or after 4GB. Dropping XSDT\n");␊ |
1028 | ␉␉␉␉␉␉␉goto drop_xsdt;␊ |
1029 | ␉␉␉␉␉␉}␊ |
1030 | ␉␉␉␉␉␉␊ |
1031 | ␉␉␉␉␉␉fadt_mod = patch_fadt(fadt, new_dsdt);␊ |
1032 | ␉␉␉␉␉␉xsdt_entries[i-dropoffset]=(uint32_t)fadt_mod;␊ |
1033 | ␉␉␉␉␉␉␊ |
1034 | ␉␉␉␉␉␉DBG("TABLE %c%c%c%c@%x,",table[0],table[1],table[2],table[3],xsdt_entries[i]);␊ |
1035 | ␉␉␉␉␉␉␊ |
1036 | ␉␉␉␉␉␉// Generate _CST SSDT␊ |
1037 | ␉␉␉␉␉␉if (generate_cstates && (new_ssdt[ssdt_count] = generate_cst_ssdt(fadt_mod))) ␊ |
1038 | ␉␉␉␉␉␉{␊ |
1039 | ␉␉␉␉␉␉␉generate_cstates = false; // Generate SSDT only once!␊ |
1040 | ␉␉␉␉␉␉␉ssdt_count++;␊ |
1041 | ␉␉␉␉␉␉}␊ |
1042 | ␉␉␉␉␉␉␊ |
1043 | ␉␉␉␉␉␉// Generating _PSS SSDT␊ |
1044 | ␉␉␉␉␉␉if (generate_pstates && (new_ssdt[ssdt_count] = generate_pss_ssdt((void*)fadt_mod->DSDT)))␊ |
1045 | ␉␉␉␉␉␉{␊ |
1046 | ␉␉␉␉␉␉␉generate_pstates = false; // Generate SSDT only once!␊ |
1047 | ␉␉␉␉␉␉␉ssdt_count++;␊ |
1048 | ␉␉␉␉␉␉}␊ |
1049 | ␉␉␉␉␉␉␊ |
1050 | ␉␉␉␉␉␉continue;␊ |
1051 | ␉␉␉␉␉}␊ |
1052 | ␉␉␉␉␉␊ |
1053 | ␉␉␉␉␉DBG("TABLE %c%c%c%c@%x,",table[0],table[1],table[2],table[3],xsdt_entries[i]);␊ |
1054 | ␉␉␉␉␉␊ |
1055 | ␉␉␉␉}␊ |
1056 | ␉␉␉␉␊ |
1057 | ␉␉␉␉// Allocate xsdt in Kernel memory area␊ |
1058 | ␉␉␉␉xsdt_mod->Length += 8*ssdt_count - 8*dropoffset;␊ |
1059 | ␉␉␉␉struct acpi_2_xsdt *xsdt_copy = (struct acpi_2_xsdt *)AllocateKernelMemory(xsdt_mod->Length);␊ |
1060 | ␉␉␉␉memcpy(xsdt_copy, xsdt_mod, xsdt_mod->Length);␊ |
1061 | ␉␉␉␉free(xsdt_mod); xsdt_mod = xsdt_copy;␊ |
1062 | ␉␉␉␉rsdp_mod->XsdtAddress=(uint32_t)xsdt_mod;␊ |
1063 | ␉␉␉␉xsdt_entries_num=(xsdt_mod->Length-sizeof(struct acpi_2_xsdt))/8;␊ |
1064 | ␉␉␉␉xsdt_entries=(uint64_t *)(xsdt_mod+1);␊ |
1065 | ␉␉␉␉␊ |
1066 | ␉␉␉␉// Mozodojo: Insert additional SSDTs into XSDT␊ |
1067 | ␉␉␉␉if(ssdt_count>0)␊ |
1068 | ␉␉␉␉{␊ |
1069 | ␉␉␉␉␉int j;␊ |
1070 | ␉␉␉␉␉␊ |
1071 | ␉␉␉␉␉for (j=0; j<ssdt_count; j++)␊ |
1072 | ␉␉␉␉␉␉xsdt_entries[i-dropoffset+j]=(uint32_t)new_ssdt[j];␊ |
1073 | ␉␉␉␉␉␉␊ |
1074 | ␉␉␉␉␉verbose("Added %d SSDT table(s) into XSDT\n", ssdt_count);␊ |
1075 | ␉␉␉␉}␊ |
1076 | ␊ |
1077 | ␉␉␉␉// Correct the checksum of XSDT␊ |
1078 | ␉␉␉␉xsdt_mod->Checksum=0;␊ |
1079 | ␉␉␉␉xsdt_mod->Checksum=256-checksum8(xsdt_mod,xsdt_mod->Length);␊ |
1080 | ␉␉␉}␊ |
1081 | ␉␉␉else␊ |
1082 | ␉␉␉{␊ |
1083 | ␉␉␉drop_xsdt:␊ |
1084 | ␉␉␉␉␊ |
1085 | ␉␉␉␉DBG("About to drop XSDT\n");␊ |
1086 | ␉␉␉␉␊ |
1087 | ␉␉␉␉/*FIXME: Now we just hope that if MacOS doesn't find XSDT it reverts to RSDT. ␊ |
1088 | ␉␉␉␉ * A Better strategy would be to generate␊ |
1089 | ␉␉␉␉ */␊ |
1090 | ␉␉␉␉␊ |
1091 | ␉␉␉␉rsdp_mod->XsdtAddress=0xffffffffffffffffLL;␊ |
1092 | ␉␉␉␉verbose("XSDT not found or XSDT incorrect\n");␊ |
1093 | ␉␉␉}␊ |
1094 | ␉␉}␊ |
1095 | ␉␉␊ |
1096 | ␉␉// Correct the checksum of RSDP ␊ |
1097 | ␉␉␊ |
1098 | ␉␉DBG("RSDP: Original checksum %d, ", rsdp_mod->Checksum);␊ |
1099 | ␉␉␊ |
1100 | ␉␉rsdp_mod->Checksum=0;␊ |
1101 | ␉␉rsdp_mod->Checksum=256-checksum8(rsdp_mod,20);␊ |
1102 | ␉␉␊ |
1103 | ␉␉DBG("New checksum %d\n", rsdp_mod->Checksum);␊ |
1104 | ␉␉␊ |
1105 | ␉␉if (version)␊ |
1106 | ␉␉{␊ |
1107 | ␉␉␉DBG("RSDP: Original extended checksum %d", rsdp_mod->ExtendedChecksum);␊ |
1108 | ␉␉␉␊ |
1109 | ␉␉␉rsdp_mod->ExtendedChecksum=0;␊ |
1110 | ␉␉␉rsdp_mod->ExtendedChecksum=256-checksum8(rsdp_mod,rsdp_mod->Length);␊ |
1111 | ␉␉␉␊ |
1112 | ␉␉␉DBG("New extended checksum %d\n", rsdp_mod->ExtendedChecksum);␊ |
1113 | ␉␉␉␊ |
1114 | ␉␉}␊ |
1115 | ␉␉␊ |
1116 | ␉␉//verbose("Patched ACPI version %d DSDT\n", version+1);␊ |
1117 | ␉␉if (version)␊ |
1118 | ␉␉{␊ |
1119 | ␉␉␉/* XXX aserebln why uint32 cast if pointer is uint64 ? */␊ |
1120 | ␉␉␉acpi20_p = (uint32_t)rsdp_mod;␊ |
1121 | ␉␉␉addConfigurationTable(&gEfiAcpi20TableGuid, &acpi20_p, "ACPI_20");␊ |
1122 | ␉␉}␊ |
1123 | ␉␉else␊ |
1124 | ␉␉{␊ |
1125 | ␉␉␉/* XXX aserebln why uint32 cast if pointer is uint64 ? */␊ |
1126 | ␉␉␉acpi10_p = (uint32_t)rsdp_mod;␊ |
1127 | ␉␉␉addConfigurationTable(&gEfiAcpiTableGuid, &acpi10_p, "ACPI");␊ |
1128 | ␉␉}␊ |
1129 | ␉}␊ |
1130 | #if DEBUG_ACPI␊ |
1131 | ␉printf("Press a key to continue... (DEBUG_ACPI)\n");␊ |
1132 | ␉getchar();␊ |
1133 | #endif␊ |
1134 | ␉return 1;␊ |
1135 | }␊ |
1136 | |