Chameleon

Chameleon Svn Source Tree

Root/trunk/i386/libsaio/acpi_patcher.c

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␊
29boolean_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 */␊
41static 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 */␊
63static 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:*/␊
90int 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␊
122void *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␊
153uint8_t␉acpi_cpu_count = 0;␊
154char* acpi_cpu_name[32];␊
155uint32_t acpi_cpu_p_blk = 0;␊
156␊
157void 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␊
200struct 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, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, ␊
215␉␉0x00, 0x00, 0x00, 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(kEnableC2States, &c2_enabled, &bootInfo->chameleonConfig);␊
253␉␉getBoolForKey(kEnableC3States, &c3_enabled, &bootInfo->chameleonConfig);␊
254␉␉getBoolForKey(kEnableC4States, &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 resource_template_register_fixedhw[8] = 0x00; ␊
272 resource_template_register_fixedhw[9] = 0x00; ␊
273 resource_template_register_fixedhw[10] = 0x00; ␊
274 resource_template_register_fixedhw[11] = 0x00; // C1␊
275 aml_add_buffer(tmpl, resource_template_register_fixedhw, sizeof(resource_template_register_fixedhw));␊
276 aml_add_byte(tmpl, 0x01); // C1␊
277 aml_add_byte(tmpl, 0x20); // Latency␊
278 aml_add_word(tmpl, 0x03e8); // Power␊
279 ␊
280 uint8_t p_blk_lo = acpi_cpu_p_blk + 4;␊
281 uint8_t p_blk_hi = (acpi_cpu_p_blk + 4) >> 8;␊
282 ␊
283 // C2␊
284 if (c2_enabled) ␊
285 { ␊
286 tmpl = aml_add_package(pack);␊
287 resource_template_register_systemio[11] = p_blk_lo; // C2␊
288 resource_template_register_systemio[12] = p_blk_hi; // C2␊
289 aml_add_buffer(tmpl, resource_template_register_systemio, sizeof(resource_template_register_systemio));␊
290 aml_add_byte(tmpl, 0x02); // C2␊
291 aml_add_byte(tmpl, 0x60); // Latency␊
292 aml_add_word(tmpl, 0x01f4); // Power␊
293 }␊
294 ␊
295 p_blk_lo = acpi_cpu_p_blk + 5;␊
296 p_blk_hi = (acpi_cpu_p_blk + 5) >> 8;␊
297 ␊
298 // C4␊
299 if (c4_enabled) ␊
300 {␊
301 tmpl = aml_add_package(pack);␊
302 resource_template_register_systemio[11] = p_blk_lo; // C4␊
303 resource_template_register_systemio[12] = p_blk_hi; // C4␊
304 aml_add_buffer(tmpl, resource_template_register_systemio, sizeof(resource_template_register_systemio));␊
305 aml_add_byte(tmpl, 0x04); // C4␊
306 aml_add_word(tmpl, 0x0A); // Latency␊
307 aml_add_byte(tmpl, 0xC8); // Power␊
308 }␊
309 else␊
310 // C3␊
311 if (c3_enabled) ␊
312 {␊
313 tmpl = aml_add_package(pack);␊
314 resource_template_register_systemio[11] = p_blk_lo; // C3␊
315 resource_template_register_systemio[12] = p_blk_hi; // C3␊
316 aml_add_buffer(tmpl, resource_template_register_systemio, sizeof(resource_template_register_systemio));␊
317 aml_add_byte(tmpl, 0x03); // C3␊
318 aml_add_word(tmpl, 0x80); // Latency␊
319 aml_add_word(tmpl, 0x015e); // Power␊
320 }␊
321␊
322 }␊
323 else {␊
324 resource_template_register_fixedhw[11] = 0x00; // C1␊
325 aml_add_buffer(tmpl, resource_template_register_fixedhw, sizeof(resource_template_register_fixedhw));␊
326 aml_add_byte(tmpl, 0x01); // C1␊
327 aml_add_byte(tmpl, 0x01); // Latency␊
328 aml_add_word(tmpl, 0x03e8); // Power␊
329 ␊
330 // C2␊
331 if (c2_enabled) ␊
332 {␊
333 tmpl = aml_add_package(pack);␊
334 resource_template_register_fixedhw[11] = 0x10; // C2␊
335 aml_add_buffer(tmpl, resource_template_register_fixedhw, sizeof(resource_template_register_fixedhw));␊
336 aml_add_byte(tmpl, 0x02); // C2␊
337 aml_add_byte(tmpl, fadt->C2_Latency);␊
338 aml_add_word(tmpl, 0x01f4); // Power␊
339 }␊
340 // C4␊
341 if (c4_enabled) ␊
342 {␊
343 tmpl = aml_add_package(pack);␊
344 resource_template_register_fixedhw[11] = 0x30; // C4␊
345 aml_add_buffer(tmpl, resource_template_register_fixedhw, sizeof(resource_template_register_fixedhw));␊
346 aml_add_byte(tmpl, 0x04); // C4␊
347 aml_add_word(tmpl, 0x11); // TODO: right latency for C4␊
348 aml_add_byte(tmpl, 0xfa); // Power␊
349 }␊
350 else␊
351 // C3␊
352 if (c3_enabled) ␊
353 {␊
354 tmpl = aml_add_package(pack);␊
355 resource_template_register_fixedhw[11] = 0x20; // C3␊
356 aml_add_buffer(tmpl, resource_template_register_fixedhw, sizeof(resource_template_register_fixedhw));␊
357 aml_add_byte(tmpl, 0x03); // C3␊
358 aml_add_word(tmpl, fadt->C3_Latency);␊
359 aml_add_word(tmpl, 0x015e); // Power␊
360 }␊
361 }␊
362␉␉␉␉␉␉␉␉␉␉␉␉␉␊
363␉␉␉␊
364␉␉␉// Aliaces␊
365␉␉␉int i;␊
366␉␉␉for (i = 0; i < acpi_cpu_count; i++) ␊
367␉␉␉{␊
368␉␉␉␉char name[9];␊
369␉␉␉␉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]);␊
370␉␉␉␉␊
371␉␉␉␉scop = aml_add_scope(root, name);␊
372␉␉␉␉␉aml_add_alias(scop, "CST_", "_CST");␊
373␉␉␉}␊
374␉␉␊
375␉␉aml_calculate_size(root);␊
376␉␉␊
377␉␉struct acpi_2_ssdt *ssdt = (struct acpi_2_ssdt *)AllocateKernelMemory(root->Size);␊
378␉␊
379␉␉aml_write_node(root, (void*)ssdt, 0);␊
380␉␉␊
381␉␉ssdt->Length = root->Size;␊
382␉␉ssdt->Checksum = 0;␊
383␉␉ssdt->Checksum = 256 - checksum8(ssdt, ssdt->Length);␊
384␉␉␊
385␉␉aml_destroy_node(root);␊
386␉␉␊
387␉␉//dumpPhysAddr("C-States SSDT content: ", ssdt, ssdt->Length);␊
388␉␉␉␉␊
389␉␉verbose ("SSDT with CPU C-States generated successfully\n");␊
390␉␉␊
391␉␉return ssdt;␊
392␉}␊
393␉else ␊
394␉{␊
395␉␉verbose ("ACPI CPUs not found: C-States not generated !!!\n");␊
396␉}␊
397␊
398␉return NULL;␊
399}␊
400␊
401struct acpi_2_ssdt *generate_pss_ssdt(struct acpi_2_dsdt* dsdt)␊
402{␉␊
403␉char ssdt_header[] =␊
404␉{␊
405␉␉0x53, 0x53, 0x44, 0x54, 0x7E, 0x00, 0x00, 0x00, /* SSDT.... */␊
406␉␉0x01, 0x6A, 0x50, 0x6D, 0x52, 0x65, 0x66, 0x00, /* ..PmRef. */␊
407␉␉0x43, 0x70, 0x75, 0x50, 0x6D, 0x00, 0x00, 0x00, /* CpuPm... */␊
408␉␉0x00, 0x30, 0x00, 0x00, 0x49, 0x4E, 0x54, 0x4C, /* .0..INTL */␊
409␉␉0x31, 0x03, 0x10, 0x20,␉␉␉␉␉␉␉/* 1.._␉␉*/␊
410␉};␊
411␉␊
412␉if (Platform.CPU.Vendor != 0x756E6547) {␊
413␉␉verbose ("Not an Intel platform: P-States will not be generated !!!\n");␊
414␉␉return NULL;␊
415␉}␊
416␉␊
417␉if (!(Platform.CPU.Features & CPU_FEATURE_MSR)) {␊
418␉␉verbose ("Unsupported CPU: P-States will not be generated !!!\n");␊
419␉␉return NULL;␊
420␉}␊
421␉␊
422␉if (acpi_cpu_count == 0) ␊
423␉␉get_acpi_cpu_names((void*)dsdt, dsdt->Length);␊
424␉␊
425␉if (acpi_cpu_count > 0) ␊
426␉{␊
427␉␉struct p_state initial, maximum, minimum, p_states[32];␊
428␉␉uint8_t p_states_count = 0;␉␉␊
429␉␉␊
430␉␉// Retrieving P-States, ported from code by superhai (c)␊
431␉␉switch (Platform.CPU.Family) {␊
432␉␉␉case 0x06: ␊
433␉␉␉{␊
434␉␉␉␉switch (Platform.CPU.Model) ␊
435␉␉␉␉{␊
436␉␉␉␉␉case 0x0D:␉␉␉␉// ???␊
437␉␉␉␉␉case CPU_MODEL_YONAH:␉// Intel Mobile Core Solo, Duo␊
438␉␉␉␉␉case CPU_MODEL_MEROM:␉// Intel Mobile Core 2 Solo, Duo, Xeon 30xx, Xeon 51xx, Xeon X53xx, Xeon E53xx, Xeon X32xx␊
439␉␉␉␉␉case CPU_MODEL_PENRYN:␉// Intel Core 2 Solo, Duo, Quad, Extreme, Xeon X54xx, Xeon X33xx␊
440␉␉␉␉␉case CPU_MODEL_ATOM:␉// Intel Atom (45nm)␊
441␉␉␉␉␉{␊
442␉␉␉␉␉␉bool cpu_dynamic_fsb = false;␊
443␉␉␉␉␉␉␊
444␉␉␉␉␉␉if (rdmsr64(MSR_IA32_EXT_CONFIG) & (1 << 27)) ␊
445␉␉␉␉␉␉{␊
446␉␉␉␉␉␉␉wrmsr64(MSR_IA32_EXT_CONFIG, (rdmsr64(MSR_IA32_EXT_CONFIG) | (1 << 28))); ␊
447␉␉␉␉␉␉␉delay(1);␊
448␉␉␉␉␉␉␉cpu_dynamic_fsb = rdmsr64(MSR_IA32_EXT_CONFIG) & (1 << 28);␊
449␉␉␉␉␉␉}␊
450␉␉␉␉␉␉␊
451␉␉␉␉␉␉bool cpu_noninteger_bus_ratio = (rdmsr64(MSR_IA32_PERF_STATUS) & (1ULL << 46));␊
452␉␉␉␉␉␉␊
453␉␉␉␉␉␉initial.Control = rdmsr64(MSR_IA32_PERF_STATUS);␊
454␉␉␉␉␉␉␊
455␉␉␉␉␉␉maximum.Control = ((rdmsr64(MSR_IA32_PERF_STATUS) >> 32) & 0x1F3F) | (0x4000 * cpu_noninteger_bus_ratio);␊
456␉␉␉␉␉␉maximum.CID = ((maximum.FID & 0x1F) << 1) | cpu_noninteger_bus_ratio;␊
457␉␉␉␉␉␉␊
458␉␉␉␉␉␉minimum.FID = ((rdmsr64(MSR_IA32_PERF_STATUS) >> 24) & 0x1F) | (0x80 * cpu_dynamic_fsb);␊
459␉␉␉␉␉␉minimum.VID = ((rdmsr64(MSR_IA32_PERF_STATUS) >> 48) & 0x3F);␊
460␉␉␉␉␉␉␊
461␉␉␉␉␉␉if (minimum.FID == 0) ␊
462␉␉␉␉␉␉{␊
463␉␉␉␉␉␉␉uint64_t msr;␊
464␉␉␉␉␉␉␉uint8_t i;␊
465␉␉␉␉␉␉␉// Probe for lowest fid␊
466␉␉␉␉␉␉␉for (i = maximum.FID; i >= 0x6; i--) ␊
467␉␉␉␉␉␉␉{␊
468␉␉␉␉␉␉␉␉msr = rdmsr64(MSR_IA32_PERF_CONTROL);␊
469␉␉␉␉␉␉␉␉wrmsr64(MSR_IA32_PERF_CONTROL, (msr & 0xFFFFFFFFFFFF0000ULL) | (i << 8) | minimum.VID);␊
470␉␉␉␉␉␉␉␉intel_waitforsts();␊
471␉␉␉␉␉␉␉␉minimum.FID = (rdmsr64(MSR_IA32_PERF_STATUS) >> 8) & 0x1F; ␊
472␉␉␉␉␉␉␉␉delay(1);␊
473␉␉␉␉␉␉␉}␊
474␉␉␉␉␉␉␉␊
475␉␉␉␉␉␉␉msr = rdmsr64(MSR_IA32_PERF_CONTROL);␊
476␉␉␉␉␉␉␉wrmsr64(MSR_IA32_PERF_CONTROL, (msr & 0xFFFFFFFFFFFF0000ULL) | (maximum.FID << 8) | maximum.VID);␊
477␉␉␉␉␉␉␉intel_waitforsts();␊
478␉␉␉␉␉␉}␊
479␉␉␉␉␉␉␊
480␉␉␉␉␉␉if (minimum.VID == maximum.VID) ␊
481␉␉␉␉␉␉{␉␊
482␉␉␉␉␉␉␉uint64_t msr;␊
483␉␉␉␉␉␉␉uint8_t i;␊
484␉␉␉␉␉␉␉// Probe for lowest vid␊
485␉␉␉␉␉␉␉for (i = maximum.VID; i > 0xA; i--) ␊
486␉␉␉␉␉␉␉{␊
487␉␉␉␉␉␉␉␉msr = rdmsr64(MSR_IA32_PERF_CONTROL);␊
488␉␉␉␉␉␉␉␉wrmsr64(MSR_IA32_PERF_CONTROL, (msr & 0xFFFFFFFFFFFF0000ULL) | (minimum.FID << 8) | i);␊
489␉␉␉␉␉␉␉␉intel_waitforsts();␊
490␉␉␉␉␉␉␉␉minimum.VID = rdmsr64(MSR_IA32_PERF_STATUS) & 0x3F; ␊
491␉␉␉␉␉␉␉␉delay(1);␊
492␉␉␉␉␉␉␉}␊
493␉␉␉␉␉␉␉␊
494␉␉␉␉␉␉␉msr = rdmsr64(MSR_IA32_PERF_CONTROL);␊
495␉␉␉␉␉␉␉wrmsr64(MSR_IA32_PERF_CONTROL, (msr & 0xFFFFFFFFFFFF0000ULL) | (maximum.FID << 8) | maximum.VID);␊
496␉␉␉␉␉␉␉intel_waitforsts();␊
497␉␉␉␉␉␉}␊
498␉␉␉␉␉␉␊
499␉␉␉␉␉␉minimum.CID = ((minimum.FID & 0x1F) << 1) >> cpu_dynamic_fsb;␊
500␉␉␉␉␉␉␊
501␉␉␉␉␉␉// Sanity check␊
502␉␉␉␉␉␉if (maximum.CID < minimum.CID) ␊
503␉␉␉␉␉␉{␊
504␉␉␉␉␉␉␉DBG("Insane FID values!");␊
505␉␉␉␉␉␉␉p_states_count = 0;␊
506␉␉␉␉␉␉}␊
507␉␉␉␉␉␉else␊
508␉␉␉␉␉␉{␊
509␉␉␉␉␉␉␉// Finalize P-States␊
510␉␉␉␉␉␉␉// Find how many P-States machine supports␊
511␉␉␉␉␉␉␉p_states_count = maximum.CID - minimum.CID + 1;␊
512␉␉␉␉␉␉␉␊
513␉␉␉␉␉␉␉if (p_states_count > 32) ␊
514␉␉␉␉␉␉␉␉p_states_count = 32;␊
515␉␉␉␉␉␉␉␊
516␉␉␉␉␉␉␉uint8_t vidstep;␊
517␉␉␉␉␉␉␉uint8_t i = 0, u, invalid = 0;␊
518␉␉␉␉␉␉␉␊
519␉␉␉␉␉␉␉vidstep = ((maximum.VID << 2) - (minimum.VID << 2)) / (p_states_count - 1);␊
520␉␉␉␉␉␉␉␊
521␉␉␉␉␉␉␉for (u = 0; u < p_states_count; u++) ␊
522␉␉␉␉␉␉␉{␊
523␉␉␉␉␉␉␉␉i = u - invalid;␊
524␉␉␉␉␉␉␉␉␊
525␉␉␉␉␉␉␉␉p_states[i].CID = maximum.CID - u;␊
526␉␉␉␉␉␉␉␉p_states[i].FID = (p_states[i].CID >> 1);␊
527␉␉␉␉␉␉␉␉␊
528␉␉␉␉␉␉␉␉if (p_states[i].FID < 0x6) ␊
529␉␉␉␉␉␉␉␉{␊
530␉␉␉␉␉␉␉␉␉if (cpu_dynamic_fsb) ␊
531␉␉␉␉␉␉␉␉␉␉p_states[i].FID = (p_states[i].FID << 1) | 0x80;␊
532␉␉␉␉␉␉␉␉} ␊
533␉␉␉␉␉␉␉␉else if (cpu_noninteger_bus_ratio) ␊
534␉␉␉␉␉␉␉␉{␊
535␉␉␉␉␉␉␉␉␉p_states[i].FID = p_states[i].FID | (0x40 * (p_states[i].CID & 0x1));␊
536␉␉␉␉␉␉␉␉}␊
537␉␉␉␉␉␉␉␉␊
538␉␉␉␉␉␉␉␉if (i && p_states[i].FID == p_states[i-1].FID)␊
539␉␉␉␉␉␉␉␉␉invalid++;␊
540␉␉␉␉␉␉␉␉␊
541␉␉␉␉␉␉␉␉p_states[i].VID = ((maximum.VID << 2) - (vidstep * u)) >> 2;␊
542␉␉␉␉␉␉␉␉␊
543␉␉␉␉␉␉␉␉uint32_t multiplier = p_states[i].FID & 0x1f;␉␉// = 0x08␊
544␉␉␉␉␉␉␉␉bool half = p_states[i].FID & 0x40;␉␉␉␉␉// = 0x01␊
545␉␉␉␉␉␉␉␉bool dfsb = p_states[i].FID & 0x80;␉␉␉␉␉// = 0x00␊
546␉␉␉␉␉␉␉␉uint32_t fsb = Platform.CPU.FSBFrequency / 1000000; // = 400␊
547␉␉␉␉␉␉␉␉uint32_t halffsb = (fsb + 1) >> 1;␉␉␉␉␉// = 200␊
548␉␉␉␉␉␉␉␉uint32_t frequency = (multiplier * fsb);␉␉␉// = 3200␊
549␉␉␉␉␉␉␉␉␊
550␉␉␉␉␉␉␉␉p_states[i].Frequency = (frequency + (half * halffsb)) >> dfsb;␉// = 3200 + 200 = 3400␊
551␉␉␉␉␉␉␉}␊
552␉␉␉␉␉␉␉␊
553␉␉␉␉␉␉␉p_states_count -= invalid;␊
554␉␉␉␉␉␉}␊
555␉␉␉␉␉␉␊
556␉␉␉␉␉␉break;␊
557␉␉␉␉␉} ␊
558␉␉␉␉␉case CPU_MODEL_FIELDS:␉␉// Intel Core i5, i7, Xeon X34xx LGA1156 (45nm)␊
559␉␉␉␉␉case CPU_MODEL_DALES:␉␉␊
560␉␉␉␉␉case CPU_MODEL_DALES_32NM:␉// Intel Core i3, i5 LGA1156 (32nm)␊
561␉␉␉␉␉case CPU_MODEL_NEHALEM:␉␉// Intel Core i7, Xeon W35xx, Xeon X55xx, Xeon E55xx LGA1366 (45nm)␊
562␉␉␉␉␉case CPU_MODEL_NEHALEM_EX:␉// Intel Xeon X75xx, Xeon X65xx, Xeon E75xx, Xeon E65x␊
563␉␉␉␉␉case CPU_MODEL_WESTMERE:␉// Intel Core i7, Xeon X56xx, Xeon E56xx, Xeon W36xx LGA1366 (32nm) 6 Core␊
564␉␉␉␉␉case CPU_MODEL_WESTMERE_EX:␉// Intel Xeon E7␊
565 case CPU_MODEL_SANDY:␉␉// Intel Core i3, i5, i7 LGA1155 (32nm)␊
566 case CPU_MODEL_SANDY_XEON:␉// Intel Xeon E3␊
567␉␉␉␉␉{␊
568␉␉␉␉␉␉maximum.Control = rdmsr64(MSR_IA32_PERF_STATUS) & 0xff; // Seems it always contains maximum multiplier value (with turbo, that's we need)...␊
569␉␉␉␉␉␉minimum.Control = (rdmsr64(MSR_PLATFORM_INFO) >> 40) & 0xff;␊
570␉␉␉␉␉␉␊
571␉␉␉␉␉␉verbose("P-States: min 0x%x, max 0x%x\n", minimum.Control, maximum.Control);␉␉␉␊
572␉␉␉␉␉␉␊
573␉␉␉␉␉␉// Sanity check␊
574␉␉␉␉␉␉if (maximum.Control < minimum.Control) ␊
575␉␉␉␉␉␉{␊
576␉␉␉␉␉␉␉DBG("Insane control values!");␊
577␉␉␉␉␉␉␉p_states_count = 0;␊
578␉␉␉␉␉␉}␊
579␉␉␉␉␉␉else␊
580␉␉␉␉␉␉{␊
581␉␉␉␉␉␉␉uint8_t i;␊
582␉␉␉␉␉␉␉p_states_count = 0;␊
583␉␉␉␉␉␉␉␊
584␉␉␉␉␉␉␉for (i = maximum.Control; i >= minimum.Control; i--) ␊
585␉␉␉␉␉␉␉{␊
586␉␉␉␉␉␉␉␉p_states[p_states_count].Control = i;␊
587␉␉␉␉␉␉␉␉p_states[p_states_count].CID = p_states[p_states_count].Control << 1;␊
588␉␉␉␉␉␉␉␉p_states[p_states_count].Frequency = (Platform.CPU.FSBFrequency / 1000000) * i;␊
589␉␉␉␉␉␉␉␉p_states_count++;␊
590␉␉␉␉␉␉␉}␊
591␉␉␉␉␉␉}␊
592␉␉␉␉␉␉␊
593␉␉␉␉␉␉break;␊
594␉␉␉␉␉}␉␊
595␉␉␉␉␉default:␊
596␉␉␉␉␉␉verbose ("Unsupported CPU: P-States not generated !!!\n");␊
597␉␉␉␉␉␉break;␊
598␉␉␉␉}␊
599␉␉␉}␊
600␉␉}␊
601␉␉␊
602␉␉// Generating SSDT␊
603␉␉if (p_states_count > 0) ␊
604␉␉{␉␊
605␉␉␉int i;␊
606␉␉␉␊
607␉␉␉struct aml_chunk* root = aml_create_node(NULL);␊
608␉␉␉␉aml_add_buffer(root, ssdt_header, sizeof(ssdt_header)); // SSDT header␊
609␉␉␉␉␉struct aml_chunk* scop = aml_add_scope(root, "\\_PR_");␊
610␉␉␉␉␉␉struct aml_chunk* name = aml_add_name(scop, "PSS_");␊
611␉␉␉␉␉␉␉struct aml_chunk* pack = aml_add_package(name);␊
612␉␉␉␊
613␉␉␉␉␉␉␉␉for (i = 0; i < p_states_count; i++) ␊
614␉␉␉␉␉␉␉␉{␊
615␉␉␉␉␉␉␉␉␉struct aml_chunk* pstt = aml_add_package(pack);␊
616␉␉␉␉␉␉␉␉␉␊
617␉␉␉␉␉␉␉␉␉aml_add_dword(pstt, p_states[i].Frequency);␊
618␉␉␉␉␉␉␉␉␉aml_add_dword(pstt, 0x00000000); // Power␊
619␉␉␉␉␉␉␉␉␉aml_add_dword(pstt, 0x0000000A); // Latency␊
620␉␉␉␉␉␉␉␉␉aml_add_dword(pstt, 0x0000000A); // Latency␊
621␉␉␉␉␉␉␉␉␉aml_add_dword(pstt, p_states[i].Control);␊
622␉␉␉␉␉␉␉␉␉aml_add_dword(pstt, i+1); // Status␊
623␉␉␉␉␉␉␉␉}␊
624␉␉␉␉␊
625␉␉␉// Add aliaces␊
626␉␉␉for (i = 0; i < acpi_cpu_count; i++) ␊
627␉␉␉{␊
628␉␉␉␉char name[9];␊
629␉␉␉␉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]);␊
630␉␉␉␉␊
631␉␉␉␉scop = aml_add_scope(root, name);␊
632␉␉␉␉aml_add_alias(scop, "PSS_", "_PSS");␊
633␉␉␉}␊
634␉␉␉␊
635␉␉␉aml_calculate_size(root);␊
636␉␉␉␊
637␉␉␉struct acpi_2_ssdt *ssdt = (struct acpi_2_ssdt *)AllocateKernelMemory(root->Size);␊
638␉␉␉␊
639␉␉␉aml_write_node(root, (void*)ssdt, 0);␊
640␉␉␉␊
641␉␉␉ssdt->Length = root->Size;␊
642␉␉␉ssdt->Checksum = 0;␊
643␉␉␉ssdt->Checksum = 256 - checksum8(ssdt, ssdt->Length);␊
644␉␉␉␊
645␉␉␉aml_destroy_node(root);␊
646␉␉␉␊
647␉␉␉//dumpPhysAddr("P-States SSDT content: ", ssdt, ssdt->Length);␊
648␉␉␉␊
649␉␉␉verbose ("SSDT with CPU P-States generated successfully\n");␊
650␉␉␉␊
651␉␉␉return ssdt;␊
652␉␉}␊
653␉}␊
654␉else ␊
655␉{␊
656␉␉verbose ("ACPI CPUs not found: P-States not generated !!!\n");␊
657␉}␊
658␉␊
659␉return NULL;␊
660}␊
661␊
662struct acpi_2_fadt *patch_fadt(struct acpi_2_fadt *fadt, struct acpi_2_dsdt *new_dsdt)␊
663{␊
664␉extern void setupSystemType(); ␊
665␉␊
666␉struct acpi_2_fadt *fadt_mod;␊
667␉bool fadt_rev2_needed = false;␊
668␉bool fix_restart;␊
669␉const char * value;␊
670␉␊
671␉// Restart Fix␊
672␉if (Platform.CPU.Vendor == 0x756E6547) {␉/* Intel */␊
673␉␉fix_restart = true;␊
674␉␉getBoolForKey(kRestartFix, &fix_restart, &bootInfo->chameleonConfig);␊
675␉} else {␊
676␉␉verbose ("Not an Intel platform: Restart Fix not applied !!!\n");␊
677␉␉fix_restart = false;␊
678␉}␊
679␉␊
680␉if (fix_restart) fadt_rev2_needed = true;␊
681␉␊
682␉// Allocate new fadt table␊
683␉if (fadt->Length < 0x84 && fadt_rev2_needed)␊
684␉{␊
685␉␉fadt_mod=(struct acpi_2_fadt *)AllocateKernelMemory(0x84);␊
686␉␉memcpy(fadt_mod, fadt, fadt->Length);␊
687␉␉fadt_mod->Length = 0x84;␊
688␉␉fadt_mod->Revision = 0x02; // FADT rev 2 (ACPI 1.0B MS extensions)␊
689␉}␊
690␉else␊
691␉{␊
692␉␉fadt_mod=(struct acpi_2_fadt *)AllocateKernelMemory(fadt->Length);␊
693␉␉memcpy(fadt_mod, fadt, fadt->Length);␊
694␉}␊
695␉// Determine system type / PM_Model␊
696␉if ( (value=getStringForKey(kSystemType, &bootInfo->chameleonConfig))!=NULL)␊
697␉{␊
698␉␉if (Platform.Type > 6) ␊
699␉␉{␊
700␉␉␉if(fadt_mod->PM_Profile<=6)␊
701␉␉␉␉Platform.Type = fadt_mod->PM_Profile; // get the fadt if correct␊
702␉␉␉else ␊
703␉␉␉␉Platform.Type = 1;␉␉/* Set a fixed value (Desktop) */␊
704␉␉␉verbose("Error: system-type must be 0..6. Defaulting to %d !\n", Platform.Type);␊
705␉␉}␊
706␉␉else␊
707␉␉␉Platform.Type = (unsigned char) strtoul(value, NULL, 10);␊
708␉}␊
709␉// Set PM_Profile from System-type if only user wanted this value to be forced␊
710␉if (fadt_mod->PM_Profile != Platform.Type) ␊
711␉{␊
712␉ if (value) ␊
713␉␉{ // user has overriden the SystemType so take care of it in FACP␊
714␉␉␉verbose("FADT: changing PM_Profile from 0x%02x to 0x%02x\n", fadt_mod->PM_Profile, Platform.Type);␊
715␉␉␉fadt_mod->PM_Profile = Platform.Type;␊
716␉ }␊
717␉ else␊
718␉ { // PM_Profile has a different value and no override has been set, so reflect the user value to ioregs␊
719␉␉␉Platform.Type = fadt_mod->PM_Profile <= 6 ? fadt_mod->PM_Profile : 1;␊
720␉ } ␊
721␉}␊
722␉// We now have to write the systemm-type in ioregs: we cannot do it before in setupDeviceTree()␊
723␉// because we need to take care of facp original content, if it is correct.␊
724␉setupSystemType();␊
725␉␊
726␉// Patch FADT to fix restart␊
727␉if (fix_restart)␊
728␉{␊
729␉␉fadt_mod->Flags|= 0x400;␊
730␉␉fadt_mod->Reset_SpaceID␉␉= 0x01; // System I/O␊
731␉␉fadt_mod->Reset_BitWidth␉= 0x08; // 1 byte␊
732␉␉fadt_mod->Reset_BitOffset␉= 0x00; // Offset 0␊
733␉␉fadt_mod->Reset_AccessWidth␉= 0x01; // Byte access␊
734␉␉fadt_mod->Reset_Address␉␉= 0x0cf9; // Address of the register␊
735␉␉fadt_mod->Reset_Value␉␉= 0x06; // Value to write to reset the system␊
736␉␉verbose("FADT: Restart Fix applied!\n");␊
737␉}␊
738␉␊
739␉// Patch DSDT Address if we have loaded DSDT.aml␊
740␉if(new_dsdt)␊
741␉{␊
742␉␉DBG("DSDT: Old @%x,%x, ",fadt_mod->DSDT,fadt_mod->X_DSDT);␊
743␉␉␊
744␉␉fadt_mod->DSDT=(uint32_t)new_dsdt;␊
745␉␉if ((uint32_t)(&(fadt_mod->X_DSDT))-(uint32_t)fadt_mod+8<=fadt_mod->Length)␊
746␉␉␉fadt_mod->X_DSDT=(uint32_t)new_dsdt;␊
747␉␉␊
748␉␉DBG("New @%x,%x\n",fadt_mod->DSDT,fadt_mod->X_DSDT);␊
749␉␉␊
750␉␉verbose("FADT: Using custom DSDT!\n");␊
751␉}␊
752␉␊
753␉// Correct the checksum␊
754␉fadt_mod->Checksum=0;␊
755␉fadt_mod->Checksum=256-checksum8(fadt_mod,fadt_mod->Length);␊
756␉␊
757␉return fadt_mod;␊
758}␊
759␊
760/* Setup ACPI without replacing DSDT. */␊
761int setupAcpiNoMod()␊
762{␊
763␉//␉addConfigurationTable(&gEfiAcpiTableGuid, getAddressOfAcpiTable(), "ACPI");␊
764␉//␉addConfigurationTable(&gEfiAcpi20TableGuid, getAddressOfAcpi20Table(), "ACPI_20");␊
765␉/* XXX aserebln why uint32 cast if pointer is uint64 ? */␊
766␉acpi10_p = (uint32_t)getAddressOfAcpiTable();␊
767␉acpi20_p = (uint32_t)getAddressOfAcpi20Table();␊
768␉addConfigurationTable(&gEfiAcpiTableGuid, &acpi10_p, "ACPI");␊
769␉if(acpi20_p) addConfigurationTable(&gEfiAcpi20TableGuid, &acpi20_p, "ACPI_20");␊
770␉return 1;␊
771}␊
772␊
773/* Setup ACPI. Replace DSDT if DSDT.aml is found */␊
774int setupAcpi(void)␊
775{␊
776␉int version;␊
777␉void *new_dsdt;␊
778␊
779␉const char *filename;␊
780␉char dirSpec[128];␊
781␉int len = 0;␊
782␊
783␉// Try using the file specified with the DSDT option␊
784␉if (getValueForKey(kDSDT, &filename, &len, &bootInfo->chameleonConfig))␊
785␉{␊
786␉␉sprintf(dirSpec, filename);␊
787␉}␊
788␉else␊
789␉{␊
790␉␉sprintf(dirSpec, "DSDT.aml");␊
791␉}␊
792␉␊
793␉// Load replacement DSDT␊
794␉new_dsdt = loadACPITable(dirSpec);␊
795␉// Mozodojo: going to patch FACP and load SSDT's even if DSDT.aml is not present␊
796␉/*if (!new_dsdt)␊
797␉ {␊
798␉ return setupAcpiNoMod();␊
799␉ }*/␊
800␉␊
801␉// Mozodojo: Load additional SSDTs␊
802␉struct acpi_2_ssdt *new_ssdt[32]; // 30 + 2 additional tables for pss & cst␊
803␉int ssdt_count=0;␊
804␉␊
805␉// SSDT Options␊
806␉bool drop_ssdt=false, generate_pstates=false, generate_cstates=false; ␊
807␉␊
808␉getBoolForKey(kDropSSDT, &drop_ssdt, &bootInfo->chameleonConfig);␊
809␉getBoolForKey(kGeneratePStates, &generate_pstates, &bootInfo->chameleonConfig);␊
810␉getBoolForKey(kGenerateCStates, &generate_cstates, &bootInfo->chameleonConfig);␊
811␉␊
812␉{␊
813␉␉int i;␊
814␉␉␊
815␉␉for (i=0; i<30; i++)␊
816␉␉{␊
817␉␉␉char filename[512];␊
818␊
819␉␉␉sprintf(filename, i>0?"SSDT-%d.aml":"SSDT.aml", i);␊
820␉␉␉␊
821␉␉␉if(new_ssdt[ssdt_count] = loadACPITable(filename)) ␊
822␉␉␉{␉␉␉␉␊
823␉␉␉␉ssdt_count++;␊
824␉␉␉}␊
825␉␉␉else ␊
826␉␉␉{␊
827␉␉␉␉break;␊
828␉␉␉}␊
829␉␉}␊
830␉}␊
831␉␉␊
832␉// Do the same procedure for both versions of ACPI␊
833␉for (version=0; version<2; version++) {␊
834␉␉struct acpi_2_rsdp *rsdp, *rsdp_mod;␊
835␉␉struct acpi_2_rsdt *rsdt, *rsdt_mod;␊
836␉␉int rsdplength;␊
837␉␉␊
838␉␉// Find original rsdp␊
839␉␉rsdp=(struct acpi_2_rsdp *)(version?getAddressOfAcpi20Table():getAddressOfAcpiTable());␊
840␉␉if (!rsdp)␊
841␉␉{␊
842␉␉␉DBG("No ACPI version %d found. Ignoring\n", version+1);␊
843␉␉␉if (version)␊
844␉␉␉␉addConfigurationTable(&gEfiAcpi20TableGuid, NULL, "ACPI_20");␊
845␉␉␉else␊
846␉␉␉␉addConfigurationTable(&gEfiAcpiTableGuid, NULL, "ACPI");␊
847␉␉␉continue;␊
848␉␉}␊
849␉␉rsdplength=version?rsdp->Length:20;␊
850␉␉␊
851␉␉DBG("RSDP version %d found @%x. Length=%d\n",version+1,rsdp,rsdplength);␊
852␉␉␊
853␉␉/* FIXME: no check that memory allocation succeeded ␊
854␉␉ * Copy and patch RSDP,RSDT, XSDT and FADT␊
855␉␉ * For more info see ACPI Specification pages 110 and following␊
856␉␉ */␊
857␉␉␊
858␉␉rsdp_mod=(struct acpi_2_rsdp *) AllocateKernelMemory(rsdplength);␊
859␉␉memcpy(rsdp_mod, rsdp, rsdplength); ␊
860␉␉rsdt=(struct acpi_2_rsdt *)(rsdp->RsdtAddress);␊
861␉␉␊
862␉␉DBG("RSDT @%x, Length %d\n",rsdt, rsdt->Length);␊
863␉␉␊
864␉␉if (rsdt && (uint32_t)rsdt !=0xffffffff && rsdt->Length<0x10000)␊
865␉␉{␊
866␉␉␉uint32_t *rsdt_entries;␊
867␉␉␉int rsdt_entries_num;␊
868␉␉␉int dropoffset=0, i;␊
869␉␉␉␊
870␉␉␉// mozo: using malloc cos I didn't found how to free already allocated kernel memory␊
871␉␉␉rsdt_mod=(struct acpi_2_rsdt *)malloc(rsdt->Length); ␊
872␉␉␉memcpy (rsdt_mod, rsdt, rsdt->Length);␊
873␉␉␉rsdp_mod->RsdtAddress=(uint32_t)rsdt_mod;␊
874␉␉␉rsdt_entries_num=(rsdt_mod->Length-sizeof(struct acpi_2_rsdt))/4;␊
875␉␉␉rsdt_entries=(uint32_t *)(rsdt_mod+1);␊
876␉␉␉for (i=0;i<rsdt_entries_num;i++)␊
877␉␉␉{␊
878␉␉␉␉char *table=(char *)(rsdt_entries[i]);␊
879␉␉␉␉if (!table)␊
880␉␉␉␉␉continue;␊
881␉␉␉␉␊
882␉␉␉␉DBG("TABLE %c%c%c%c,",table[0],table[1],table[2],table[3]);␊
883␉␉␉␉␊
884␉␉␉␉rsdt_entries[i-dropoffset]=rsdt_entries[i];␊
885␉␉␉␉␊
886␉␉␉␉if (drop_ssdt && tableSign(table, "SSDT"))␊
887␉␉␉␉{␊
888␉␉␉␉␉dropoffset++;␊
889␉␉␉␉␉continue;␊
890␉␉␉␉}␊
891␉␉␉␉if (tableSign(table, "DSDT"))␊
892␉␉␉␉{␊
893␉␉␉␉␉DBG("DSDT found\n");␊
894␉␉␉␉␉␊
895␉␉␉␉␉if(new_dsdt)␊
896␉␉␉␉␉␉rsdt_entries[i-dropoffset]=(uint32_t)new_dsdt;␊
897␉␉␉␉␉␉␉␉␉␉␊
898␉␉␉␉␉continue;␊
899␉␉␉␉}␊
900␉␉␉␉if (tableSign(table, "FACP"))␊
901␉␉␉␉{␊
902␉␉␉␉␉struct acpi_2_fadt *fadt, *fadt_mod;␊
903␉␉␉␉␉fadt=(struct acpi_2_fadt *)rsdt_entries[i];␊
904␉␉␉␉␉␊
905␉␉␉␉␉DBG("FADT found @%x, Length %d\n",fadt, fadt->Length);␊
906␉␉␉␉␉␊
907␉␉␉␉␉if (!fadt || (uint32_t)fadt == 0xffffffff || fadt->Length>0x10000)␊
908␉␉␉␉␉{␊
909␉␉␉␉␉␉printf("FADT incorrect. Not modified\n");␊
910␉␉␉␉␉␉continue;␊
911␉␉␉␉␉}␊
912␉␉␉␉␉␊
913␉␉␉␉␉fadt_mod = patch_fadt(fadt, new_dsdt);␊
914␉␉␉␉␉rsdt_entries[i-dropoffset]=(uint32_t)fadt_mod;␊
915␉␉␉␉␉␊
916␉␉␉␉␉// Generate _CST SSDT␊
917␉␉␉␉␉if (generate_cstates && (new_ssdt[ssdt_count] = generate_cst_ssdt(fadt_mod)))␊
918␉␉␉␉␉{␊
919␉␉␉␉␉␉generate_cstates = false; // Generate SSDT only once!␊
920␉␉␉␉␉␉ssdt_count++;␊
921␉␉␉␉␉}␊
922␉␉␉␉␉␊
923␉␉␉␉␉// Generating _PSS SSDT␊
924␉␉␉␉␉if (generate_pstates && (new_ssdt[ssdt_count] = generate_pss_ssdt((void*)fadt_mod->DSDT)))␊
925␉␉␉␉␉{␊
926␉␉␉␉␉␉generate_pstates = false; // Generate SSDT only once!␊
927␉␉␉␉␉␉ssdt_count++;␊
928␉␉␉␉␉}␊
929␉␉␉␉␉␊
930␉␉␉␉␉continue;␊
931␉␉␉␉}␊
932␉␉␉}␊
933␉␉␉DBG("\n");␊
934␉␉␉␊
935␉␉␉// Allocate rsdt in Kernel memory area␊
936␉␉␉rsdt_mod->Length += 4*ssdt_count - 4*dropoffset;␊
937␉␉␉struct acpi_2_rsdt *rsdt_copy = (struct acpi_2_rsdt *)AllocateKernelMemory(rsdt_mod->Length);␊
938␉␉␉memcpy (rsdt_copy, rsdt_mod, rsdt_mod->Length);␊
939␉␉␉free(rsdt_mod); rsdt_mod = rsdt_copy;␊
940␉␉␉rsdp_mod->RsdtAddress=(uint32_t)rsdt_mod;␊
941␉␉␉rsdt_entries_num=(rsdt_mod->Length-sizeof(struct acpi_2_rsdt))/4;␊
942␉␉␉rsdt_entries=(uint32_t *)(rsdt_mod+1);␊
943␉␉␉␊
944␉␉␉// Mozodojo: Insert additional SSDTs into RSDT␊
945␉␉␉if(ssdt_count>0)␊
946␉␉␉{␊
947␉␉␉␉int j;␊
948␉␉␉␉␊
949␉␉␉␉for (j=0; j<ssdt_count; j++)␊
950␉␉␉␉␉rsdt_entries[i-dropoffset+j]=(uint32_t)new_ssdt[j];␊
951␉␉␉␉␉␊
952␉␉␉␉verbose("RSDT: Added %d SSDT table(s)\n", ssdt_count);␊
953␉␉␉}␊
954␊
955␉␉␉// Correct the checksum of RSDT␊
956␉␉␉DBG("RSDT: Original checksum %d, ", rsdt_mod->Checksum);␊
957␉␉␉␊
958␉␉␉rsdt_mod->Checksum=0;␊
959␉␉␉rsdt_mod->Checksum=256-checksum8(rsdt_mod,rsdt_mod->Length);␊
960␉␉␉␊
961␉␉␉DBG("New checksum %d at %x\n", rsdt_mod->Checksum,rsdt_mod);␊
962␉␉}␊
963␉␉else␊
964␉␉{␊
965␉␉␉rsdp_mod->RsdtAddress=0;␊
966␉␉␉printf("RSDT not found or RSDT incorrect\n");␊
967␉␉}␊
968␉␉␊
969␉␉if (version)␊
970␉␉{␊
971␉␉␉struct acpi_2_xsdt *xsdt, *xsdt_mod;␊
972␉␉␉␊
973␉␉␉// FIXME: handle 64-bit address correctly␊
974␉␉␉␊
975␉␉␉xsdt=(struct acpi_2_xsdt*) ((uint32_t)rsdp->XsdtAddress);␊
976␉␉␉DBG("XSDT @%x;%x, Length=%d\n", (uint32_t)(rsdp->XsdtAddress>>32),(uint32_t)rsdp->XsdtAddress,␊
977␉␉␉␉xsdt->Length);␊
978␉␉␉if (xsdt && (uint64_t)rsdp->XsdtAddress<0xffffffff && xsdt->Length<0x10000)␊
979␉␉␉{␊
980␉␉␉␉uint64_t *xsdt_entries;␊
981␉␉␉␉int xsdt_entries_num, i;␊
982␉␉␉␉int dropoffset=0;␊
983␉␉␉␉␊
984␉␉␉␉// mozo: using malloc cos I didn't found how to free already allocated kernel memory␊
985␉␉␉␉xsdt_mod=(struct acpi_2_xsdt*)malloc(xsdt->Length); ␊
986␉␉␉␉memcpy(xsdt_mod, xsdt, xsdt->Length);␊
987␉␉␉␉rsdp_mod->XsdtAddress=(uint32_t)xsdt_mod;␊
988␉␉␉␉xsdt_entries_num=(xsdt_mod->Length-sizeof(struct acpi_2_xsdt))/8;␊
989␉␉␉␉xsdt_entries=(uint64_t *)(xsdt_mod+1);␊
990␉␉␉␉for (i=0;i<xsdt_entries_num;i++)␊
991␉␉␉␉{␊
992␉␉␉␉␉char *table=(char *)((uint32_t)(xsdt_entries[i]));␊
993␉␉␉␉␉if (!table)␊
994␉␉␉␉␉␉continue;␊
995␉␉␉␉␉␊
996␉␉␉␉␉xsdt_entries[i-dropoffset]=xsdt_entries[i];␊
997␉␉␉␉␉␊
998␉␉␉␉␉if (drop_ssdt && tableSign(table, "SSDT"))␊
999␉␉␉␉␉{␊
1000␉␉␉␉␉␉dropoffset++;␊
1001␉␉␉␉␉␉continue;␊
1002␉␉␉␉␉}␉␉␉␉␉␊
1003␉␉␉␉␉if (tableSign(table, "DSDT"))␊
1004␉␉␉␉␉{␊
1005␉␉␉␉␉␉DBG("DSDT found\n");␊
1006␉␉␉␉␉␉␊
1007␉␉␉␉␉␉if (new_dsdt) ␊
1008␉␉␉␉␉␉␉xsdt_entries[i-dropoffset]=(uint32_t)new_dsdt;␊
1009␉␉␉␉␉␉␊
1010␉␉␉␉␉␉DBG("TABLE %c%c%c%c@%x,",table[0],table[1],table[2],table[3],xsdt_entries[i]);␊
1011␉␉␉␉␉␉␊
1012␉␉␉␉␉␉continue;␊
1013␉␉␉␉␉}␊
1014␉␉␉␉␉if (tableSign(table, "FACP"))␊
1015␉␉␉␉␉{␊
1016␉␉␉␉␉␉struct acpi_2_fadt *fadt, *fadt_mod;␊
1017␉␉␉␉␉␉fadt=(struct acpi_2_fadt *)(uint32_t)xsdt_entries[i];␊
1018␉␉␉␉␉␉␊
1019␉␉␉␉␉␉DBG("FADT found @%x,%x, Length %d\n",(uint32_t)(xsdt_entries[i]>>32),fadt, ␊
1020␉␉␉␉␉␉␉fadt->Length);␊
1021␉␉␉␉␉␉␊
1022␉␉␉␉␉␉if (!fadt || (uint64_t)xsdt_entries[i] >= 0xffffffff || fadt->Length>0x10000)␊
1023␉␉␉␉␉␉{␊
1024␉␉␉␉␉␉␉verbose("FADT incorrect or after 4GB. Dropping XSDT\n");␊
1025␉␉␉␉␉␉␉goto drop_xsdt;␊
1026␉␉␉␉␉␉}␊
1027␉␉␉␉␉␉␊
1028␉␉␉␉␉␉fadt_mod = patch_fadt(fadt, new_dsdt);␊
1029␉␉␉␉␉␉xsdt_entries[i-dropoffset]=(uint32_t)fadt_mod;␊
1030␉␉␉␉␉␉␊
1031␉␉␉␉␉␉DBG("TABLE %c%c%c%c@%x,",table[0],table[1],table[2],table[3],xsdt_entries[i]);␊
1032␉␉␉␉␉␉␊
1033␉␉␉␉␉␉// Generate _CST SSDT␊
1034␉␉␉␉␉␉if (generate_cstates && (new_ssdt[ssdt_count] = generate_cst_ssdt(fadt_mod))) ␊
1035␉␉␉␉␉␉{␊
1036␉␉␉␉␉␉␉generate_cstates = false; // Generate SSDT only once!␊
1037␉␉␉␉␉␉␉ssdt_count++;␊
1038␉␉␉␉␉␉}␊
1039␉␉␉␉␉␉␊
1040␉␉␉␉␉␉// Generating _PSS SSDT␊
1041␉␉␉␉␉␉if (generate_pstates && (new_ssdt[ssdt_count] = generate_pss_ssdt((void*)fadt_mod->DSDT)))␊
1042␉␉␉␉␉␉{␊
1043␉␉␉␉␉␉␉generate_pstates = false; // Generate SSDT only once!␊
1044␉␉␉␉␉␉␉ssdt_count++;␊
1045␉␉␉␉␉␉}␊
1046␉␉␉␉␉␉␊
1047␉␉␉␉␉␉continue;␊
1048␉␉␉␉␉}␊
1049␉␉␉␉␉␊
1050␉␉␉␉␉DBG("TABLE %c%c%c%c@%x,",table[0],table[1],table[2],table[3],xsdt_entries[i]);␊
1051␉␉␉␉␉␊
1052␉␉␉␉}␊
1053␉␉␉␉␊
1054␉␉␉␉// Allocate xsdt in Kernel memory area␊
1055␉␉␉␉xsdt_mod->Length += 8*ssdt_count - 8*dropoffset;␊
1056␉␉␉␉struct acpi_2_xsdt *xsdt_copy = (struct acpi_2_xsdt *)AllocateKernelMemory(xsdt_mod->Length);␊
1057␉␉␉␉memcpy(xsdt_copy, xsdt_mod, xsdt_mod->Length);␊
1058␉␉␉␉free(xsdt_mod); xsdt_mod = xsdt_copy;␊
1059␉␉␉␉rsdp_mod->XsdtAddress=(uint32_t)xsdt_mod;␊
1060␉␉␉␉xsdt_entries_num=(xsdt_mod->Length-sizeof(struct acpi_2_xsdt))/8;␊
1061␉␉␉␉xsdt_entries=(uint64_t *)(xsdt_mod+1);␊
1062␉␉␉␉␊
1063␉␉␉␉// Mozodojo: Insert additional SSDTs into XSDT␊
1064␉␉␉␉if(ssdt_count>0)␊
1065␉␉␉␉{␊
1066␉␉␉␉␉int j;␊
1067␉␉␉␉␉␊
1068␉␉␉␉␉for (j=0; j<ssdt_count; j++)␊
1069␉␉␉␉␉␉xsdt_entries[i-dropoffset+j]=(uint32_t)new_ssdt[j];␊
1070␉␉␉␉␉␉␊
1071␉␉␉␉␉verbose("Added %d SSDT table(s) into XSDT\n", ssdt_count);␊
1072␉␉␉␉}␊
1073␊
1074␉␉␉␉// Correct the checksum of XSDT␊
1075␉␉␉␉xsdt_mod->Checksum=0;␊
1076␉␉␉␉xsdt_mod->Checksum=256-checksum8(xsdt_mod,xsdt_mod->Length);␊
1077␉␉␉}␊
1078␉␉␉else␊
1079␉␉␉{␊
1080␉␉␉drop_xsdt:␊
1081␉␉␉␉␊
1082␉␉␉␉DBG("About to drop XSDT\n");␊
1083␉␉␉␉␊
1084␉␉␉␉/*FIXME: Now we just hope that if MacOS doesn't find XSDT it reverts to RSDT. ␊
1085␉␉␉␉ * A Better strategy would be to generate␊
1086␉␉␉␉ */␊
1087␉␉␉␉␊
1088␉␉␉␉rsdp_mod->XsdtAddress=0xffffffffffffffffLL;␊
1089␉␉␉␉verbose("XSDT not found or XSDT incorrect\n");␊
1090␉␉␉}␊
1091␉␉}␊
1092␉␉␊
1093␉␉// Correct the checksum of RSDP ␊
1094␉␉␊
1095␉␉DBG("RSDP: Original checksum %d, ", rsdp_mod->Checksum);␊
1096␉␉␊
1097␉␉rsdp_mod->Checksum=0;␊
1098␉␉rsdp_mod->Checksum=256-checksum8(rsdp_mod,20);␊
1099␉␉␊
1100␉␉DBG("New checksum %d\n", rsdp_mod->Checksum);␊
1101␉␉␊
1102␉␉if (version)␊
1103␉␉{␊
1104␉␉␉DBG("RSDP: Original extended checksum %d", rsdp_mod->ExtendedChecksum);␊
1105␉␉␉␊
1106␉␉␉rsdp_mod->ExtendedChecksum=0;␊
1107␉␉␉rsdp_mod->ExtendedChecksum=256-checksum8(rsdp_mod,rsdp_mod->Length);␊
1108␉␉␉␊
1109␉␉␉DBG("New extended checksum %d\n", rsdp_mod->ExtendedChecksum);␊
1110␉␉␉␊
1111␉␉}␊
1112␉␉␊
1113␉␉//verbose("Patched ACPI version %d DSDT\n", version+1);␊
1114␉␉if (version)␊
1115␉␉{␊
1116␉␉␉/* XXX aserebln why uint32 cast if pointer is uint64 ? */␊
1117␉␉␉acpi20_p = (uint32_t)rsdp_mod;␊
1118␉␉␉addConfigurationTable(&gEfiAcpi20TableGuid, &acpi20_p, "ACPI_20");␊
1119␉␉}␊
1120␉␉else␊
1121␉␉{␊
1122␉␉␉/* XXX aserebln why uint32 cast if pointer is uint64 ? */␊
1123␉␉␉acpi10_p = (uint32_t)rsdp_mod;␊
1124␉␉␉addConfigurationTable(&gEfiAcpiTableGuid, &acpi10_p, "ACPI");␊
1125␉␉}␊
1126␉}␊
1127#if DEBUG_ACPI␊
1128␉printf("Press a key to continue... (DEBUG_ACPI)\n");␊
1129␉getchar();␊
1130#endif␊
1131␉return 1;␊
1132}␊
1133

Archive Download this file

Revision: 1162