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1/*␊
2 * Copyright 2008 mackerintel␊
3 * 2010 mojodojo, 2012 slice␊
4 */␊
5␊
6#include "libsaio.h"␊
7#include "boot.h"␊
8#include "bootstruct.h"␊
9#include "acpi.h"␊
10#include "efi_tables.h"␊
11#include "fake_efi.h"␊
12#include "acpi_patcher.h"␊
13#include "platform.h"␊
14#include "cpu.h"␊
15#include "aml_generator.h"␊
16␊
17#ifndef DEBUG_ACPI␊
18#define DEBUG_ACPI 0␊
19#endif␊
20␊
21#if DEBUG_ACPI==2␊
22#define DBG(x...) {printf(x); sleep(1);}␊
23#elif DEBUG_ACPI==1␊
24#define DBG(x...) printf(x)␊
25#else␊
26#define DBG(x...)␊
27#endif␊
28␊
29// Slice: New signature compare function␊
30boolean_t tableSign(char *table, const char *sgn)␊
31{␊
32␉int i;␊
33␉for (i=0; i<4; i++)␊
34␉{␊
35␉␉if ((table[i] &~0x20) != (sgn[i] &~0x20))␊
36␉␉{␊
37␉␉␉return false;␊
38␉␉}␊
39␉}␊
40␉return true;␊
41}␊
42␊
43/* Gets the ACPI 1.0 RSDP address */␊
44static struct acpi_2_rsdp* getAddressOfAcpiTable()␊
45{␊
46␉/* TODO: Before searching the BIOS space we are supposed to search the first 1K of the EBDA */␊
47␊
48␉void *acpi_addr = (void*)ACPI_RANGE_START;␊
49␉for(; acpi_addr <= (void*)ACPI_RANGE_END; acpi_addr += 16)␊
50␉{␊
51␉␉if(*(uint64_t *)acpi_addr == ACPI_SIGNATURE_UINT64_LE)␊
52␉␉{␊
53␉␉␉uint8_t csum = checksum8(acpi_addr, 20);␊
54␉␉␉if(csum == 0)␊
55␉␉␉{␊
56␉␉␉// Only return the table if it is a true version 1.0 table (Revision 0)␊
57␉␉␉␉if(((struct acpi_2_rsdp*)acpi_addr)->Revision == 0)␊
58␉␉␉␉return acpi_addr;␊
59␉␉␉}␊
60␉␉}␊
61␉}␊
62␉return NULL;␊
63}␊
64␊
65/* Gets the ACPI 2.0 RSDP address */␊
66static struct acpi_2_rsdp* getAddressOfAcpi20Table()␊
67{␊
68␉/* TODO: Before searching the BIOS space we are supposed to search the first 1K of the EBDA */␊
69␊
70␉void *acpi_addr = (void*)ACPI_RANGE_START;␊
71␉for(; acpi_addr <= (void*)ACPI_RANGE_END; acpi_addr += 16)␊
72␉{␊
73␉␉if(*(uint64_t *)acpi_addr == ACPI_SIGNATURE_UINT64_LE)␊
74␉␉{␊
75␉␉␉uint8_t csum = checksum8(acpi_addr, 20);␊
76␊
77␉␉␉/* Only assume this is a 2.0 or better table if the revision is greater than 0␊
78␉␉␉ * NOTE: ACPI 3.0 spec only seems to say that 1.0 tables have revision 1␊
79␉␉␉ * and that the current revision is 2.. I am going to assume that rev > 0 is 2.0.␊
80␉␉␉ */␊
81␊
82␉␉␉if(csum == 0 && (((struct acpi_2_rsdp*)acpi_addr)->Revision > 0))␊
83␉␉␉{␊
84␉␉␉␉uint8_t csum2 = checksum8(acpi_addr, sizeof(struct acpi_2_rsdp));␊
85␉␉␉␉if(csum2 == 0)␊
86␉␉␉␉{␊
87␉␉␉␉␉return acpi_addr;␊
88␉␉␉␉}␊
89␉␉␉}␊
90␉␉}␊
91␉}␊
92␉return NULL;␊
93}␊
94␊
95/* The folowing ACPI Table search algo. should be reused anywhere needed:*/␊
96int search_and_get_acpi_fd(const char * filename, const char ** outDirspec)␊
97{␊
98␉int fd = 0;␊
99␉char dirSpec[512];␊
100␊
101␉// Try finding 'filename' in the usual places␊
102␉// Start searching any potential location for ACPI Table␊
103␉sprintf(dirSpec, "%s", filename); ␊
104␉fd = open(dirSpec, 0);␊
105␉if (fd < 0)␊
106␉{␉␊
107␉␉sprintf(dirSpec, "/Extra/%s", filename);␊
108␉␉fd = open(dirSpec, 0);␊
109␉␉if (fd < 0)␊
110␉␉{␊
111␉␉␉sprintf(dirSpec, "bt(0,0)/Extra/%s", filename);␊
112␉␉␉fd = open(dirSpec, 0);␊
113␉␉}␊
114␉}␊
115␊
116␉if (fd < 0)␊
117␉{␊
118␉␉// NOT FOUND:␊
119␉␉verbose("ACPI Table not found: %s\n", filename);␊
120␉␉*dirSpec = '\0';␊
121␉}␊
122␊
123␉if (outDirspec) *outDirspec = dirSpec; ␊
124␉return fd;␊
125}␊
126␊
127void *loadACPITable (const char * filename)␊
128{␊
129␉void *tableAddr;␊
130␉const char * dirspec=NULL;␊
131␊
132␉int fd = search_and_get_acpi_fd(filename, &dirspec);␊
133␊
134␉if (fd>=0)␊
135␉{␊
136␉␉tableAddr=(void*)AllocateKernelMemory(file_size (fd));␊
137␉␉if (tableAddr)␊
138␉␉{␊
139␉␉␉if (read (fd, tableAddr, file_size (fd))!=file_size (fd))␊
140␉␉␉{␊
141␉␉␉␉printf("Couldn't read table %s\n",dirspec);␊
142␉␉␉␉free (tableAddr);␊
143␉␉␉␉close (fd);␊
144␉␉␉␉return NULL;␊
145␉␉␉}␊
146␊
147␉␉␉DBG("Table %s read and stored at: %x\n", dirspec, tableAddr);␊
148␉␉␉close (fd);␊
149␉␉␉return tableAddr;␊
150␉␉}␊
151␉␉close (fd);␊
152␉␉printf("Couldn't allocate memory for table \n", dirspec);␊
153␉} ␊
154␉//printf("Couldn't find table %s\n", filename);␊
155␉return NULL;␊
156}␊
157␊
158uint8_t␉acpi_cpu_count = 0;␊
159char* acpi_cpu_name[32];␊
160uint32_t acpi_cpu_p_blk = 0;␊
161␊
162void get_acpi_cpu_names(unsigned char* dsdt, uint32_t length)␊
163{␊
164␉uint32_t i;␊
165␊
166␉DBG("start finding cpu names. length %d\n", length);␊
167␊
168␉for (i=0; i<length-7; i++) ␊
169␉{␊
170␉␉if (dsdt[i] == 0x5B && dsdt[i+1] == 0x83) // ProcessorOP␊
171␉␉{␊
172␉␉␉DBG("dsdt: %x%x\n", dsdt[i], dsdt[i+1]);␊
173␊
174␉␉␉uint32_t offset = i + 3 + (dsdt[i+2] >> 6);␊
175␊
176␉␉␉bool add_name = true;␊
177␊
178␉␉␉uint8_t j;␊
179␊
180␉␉␉for (j=0; j<4; j++) ␊
181␉␉␉{␊
182␉␉␉␉char c = dsdt[offset+j];␊
183␊
184␉␉␉␉if (!aml_isvalidchar(c)) ␊
185␉␉␉␉{␊
186␉␉␉␉␉add_name = false;␊
187␉␉␉␉␉verbose("Invalid character found in ProcessorOP 0x%x!\n", c);␊
188␉␉␉␉␉break;␊
189␉␉␉␉}␊
190␉␉␉}␊
191␊
192␉␉␉if (add_name)␊
193␉␉␉{␊
194␉␉␉␉acpi_cpu_name[acpi_cpu_count] = malloc(4);␊
195␉␉␉␉memcpy(acpi_cpu_name[acpi_cpu_count], dsdt+offset, 4);␊
196␉␉␉␉i = offset + 5;␊
197␊
198␉␉␉␉if (acpi_cpu_count == 0)␊
199␉␉␉␉␉acpi_cpu_p_blk = dsdt[i] | (dsdt[i+1] << 8);␊
200␊
201␉␉␉␉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]);␊
202␊
203␉␉␉␉if (++acpi_cpu_count == 32)␊
204␉␉␉␉{␊
205␉␉␉␉␉return;␊
206␉␉␉␉}␊
207␉␉␉}␊
208␉␉}␊
209␉}␊
210␊
211␉DBG("end finding cpu names: cpu names found: %d\n", acpi_cpu_count);␊
212}␊
213␊
214struct acpi_2_ssdt *generate_cst_ssdt(struct acpi_2_fadt* fadt)␊
215{␊
216␉char ssdt_header[] =␊
217␉{␊
218␉␉0x53, 0x53, 0x44, 0x54, 0xE7, 0x00, 0x00, 0x00, /* SSDT.... */␊
219␉␉0x01, 0x17, 0x50, 0x6D, 0x52, 0x65, 0x66, 0x41, /* ..PmRefA */␊
220␉␉0x43, 0x70, 0x75, 0x43, 0x73, 0x74, 0x00, 0x00, /* CpuCst.. */␊
221␉␉0x00, 0x10, 0x00, 0x00, 0x49, 0x4E, 0x54, 0x4C, /* ....INTL */␊
222␉␉0x31, 0x03, 0x10, 0x20␉␉␉␉␉␉␉/* 1.._␉␉*/␊
223␉};␊
224␉␊
225␉char resource_template_register_fixedhw[] =␊
226␉{␊
227␉␉0x11, 0x14, 0x0A, 0x11, 0x82, 0x0C, 0x00, 0x7F,␊
228␉␉0x01, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,␊
229␉␉0x00, 0x00, 0x01, 0x79, 0x00␊
230␉};␊
231␊
232␉char resource_template_register_systemio[] =␊
233␉{␊
234␉␉0x11, 0x14, 0x0A, 0x11, 0x82, 0x0C, 0x00, 0x01,␊
235␉␉0x08, 0x00, 0x00, 0x15, 0x04, 0x00, 0x00, 0x00,␊
236␉␉0x00, 0x00, 0x00, 0x79, 0x00,␊
237␉};␊
238␊
239␉if (Platform.CPU.Vendor != 0x756E6547) {␊
240␉␉verbose ("Not an Intel platform: C-States will not be generated !!!\n");␊
241␉␉return NULL;␊
242␉}␊
243␊
244␉if (fadt == NULL) {␊
245␉␉verbose ("FACP not exists: C-States will not be generated !!!\n");␊
246␉␉return NULL;␊
247␉}␊
248␊
249␉struct acpi_2_dsdt* dsdt = (void*)fadt->DSDT;␊
250␊
251␉if (dsdt == NULL) {␊
252␉␉verbose ("DSDT not found: C-States will not be generated !!!\n");␊
253␉␉return NULL;␊
254␉}␊
255␊
256␉if (acpi_cpu_count == 0)␊
257␉␉get_acpi_cpu_names((void*)dsdt, dsdt->Length);␊
258␊
259␉if (acpi_cpu_count > 0)␊
260␉{␊
261␉␉bool c2_enabled = false;␊
262␉␉bool c3_enabled = false;␊
263␉␉bool c4_enabled = false;␊
264␉␉bool cst_using_systemio = false;␊
265␊
266␉␉getBoolForKey(kEnableC2State, &c2_enabled, &bootInfo->chameleonConfig);␊
267␉␉getBoolForKey(kEnableC3State, &c3_enabled, &bootInfo->chameleonConfig);␊
268␉␉getBoolForKey(kEnableC4State, &c4_enabled, &bootInfo->chameleonConfig);␊
269␉␉getBoolForKey(kCSTUsingSystemIO, &cst_using_systemio, &bootInfo->chameleonConfig);␊
270␊
271␉␉c2_enabled = c2_enabled | (fadt->C2_Latency < 100);␊
272␉␉c3_enabled = c3_enabled | (fadt->C3_Latency < 1000);␊
273␊
274␉␉unsigned char cstates_count = 1 + (c2_enabled ? 1 : 0) + (c3_enabled ? 1 : 0);␊
275␊
276␉␉struct aml_chunk* root = aml_create_node(NULL);␊
277␉␉aml_add_buffer(root, ssdt_header, sizeof(ssdt_header)); // SSDT header␊
278␉␉struct aml_chunk* scop = aml_add_scope(root, "\\_PR_");␊
279␉␉struct aml_chunk* name = aml_add_name(scop, "CST_");␊
280␉␉struct aml_chunk* pack = aml_add_package(name);␊
281␉␉aml_add_byte(pack, cstates_count);␊
282␊
283␉␉struct aml_chunk* tmpl = aml_add_package(pack);␊
284␉␉if (cst_using_systemio)␊
285␉␉{␊
286␉␉␉// C1␊
287␉␉␉resource_template_register_fixedhw[8] = 0x00;␊
288␉␉␉resource_template_register_fixedhw[9] = 0x00;␊
289␉␉␉resource_template_register_fixedhw[18] = 0x00;␊
290␉␉␉aml_add_buffer(tmpl, resource_template_register_fixedhw, sizeof(resource_template_register_fixedhw));␊
291␉␉␉aml_add_byte(tmpl, 0x01);␉␉// C1␊
292␉␉␉aml_add_word(tmpl, 0x0001);␉␉// Latency␊
293␉␉␉aml_add_dword(tmpl, 0x000003e8);␉// Power␊
294␊
295␉␉␉uint8_t p_blk_lo, p_blk_hi;␊
296␊
297␉␉␉if (c2_enabled) // C2␊
298␉␉␉{␊
299␉␉␉␉p_blk_lo = acpi_cpu_p_blk + 4;␊
300␉␉␉␉p_blk_hi = (acpi_cpu_p_blk + 4) >> 8;␊
301␊
302␉␉␉␉tmpl = aml_add_package(pack);␊
303␉␉␉␉resource_template_register_systemio[11] = p_blk_lo; // C2␊
304␉␉␉␉resource_template_register_systemio[12] = p_blk_hi; // C2␊
305␉␉␉␉aml_add_buffer(tmpl, resource_template_register_systemio, sizeof(resource_template_register_systemio));␊
306␉␉␉␉aml_add_byte(tmpl, 0x02);␉␉// C2␊
307␉␉␉␉aml_add_word(tmpl, 0x0040);␉␉// Latency␊
308␉␉␉␉aml_add_dword(tmpl, 0x000001f4);␉// Power␊
309␉␉␉}␊
310␊
311␉␉␉if (c4_enabled) // C4␊
312␉␉␉{␊
313␉␉␉␉p_blk_lo = acpi_cpu_p_blk + 5;␊
314␉␉␉␉p_blk_hi = (acpi_cpu_p_blk + 5) >> 8;␊
315␊
316␉␉␉␉tmpl = aml_add_package(pack);␊
317␉␉␉␉resource_template_register_systemio[11] = p_blk_lo; // C4␊
318␉␉␉␉resource_template_register_systemio[12] = p_blk_hi; // C4␊
319␉␉␉␉aml_add_buffer(tmpl, resource_template_register_systemio, sizeof(resource_template_register_systemio));␊
320␉␉␉␉aml_add_byte(tmpl, 0x04);␉␉// C4␊
321␉␉␉␉aml_add_word(tmpl, 0x0080);␉␉// Latency␊
322␉␉␉␉aml_add_dword(tmpl, 0x000000C8);␉// Power␊
323␉␉␉}␊
324␉␉␉else if (c3_enabled) // C3␊
325␉␉␉{␊
326␉␉␉␉p_blk_lo = acpi_cpu_p_blk + 5;␊
327␉␉␉␉p_blk_hi = (acpi_cpu_p_blk + 5) >> 8;␊
328␊
329␉␉␉␉tmpl = aml_add_package(pack);␊
330␉␉␉␉resource_template_register_systemio[11] = p_blk_lo; // C3␊
331␉␉␉␉resource_template_register_systemio[12] = p_blk_hi; // C3␊
332␉␉␉␉aml_add_buffer(tmpl, resource_template_register_systemio, sizeof(resource_template_register_systemio));␊
333␉␉␉␉aml_add_byte(tmpl, 0x03);␉␉// C3␊
334␉␉␉␉aml_add_word(tmpl, 0x0060);␉␉// Latency␊
335␉␉␉␉aml_add_dword(tmpl, 0x0000015e);␉// Power␊
336␉␉␉}␊
337␉␉}␊
338␉␉else␊
339␉␉{␊
340␉␉␉// C1␊
341␉␉␉resource_template_register_fixedhw[8] = 0x01;␊
342␉␉␉resource_template_register_fixedhw[9] = 0x02;␊
343␉␉␉resource_template_register_fixedhw[18] = 0x01;␊
344␊
345␉␉␉resource_template_register_fixedhw[11] = 0x00; // C1␊
346␉␉␉aml_add_buffer(tmpl, resource_template_register_fixedhw, sizeof(resource_template_register_fixedhw));␊
347␉␉␉aml_add_byte(tmpl, 0x01);␉␉// C1␊
348␉␉␉aml_add_word(tmpl, 0x0001);␉␉// Latency␊
349␉␉␉aml_add_dword(tmpl, 0x000003e8);␉// Power␊
350␊
351␉␉␉resource_template_register_fixedhw[18] = 0x03;␊
352␊
353␉␉␉if (c2_enabled) // C2␊
354␉␉␉{␊
355␉␉␉␉tmpl = aml_add_package(pack);␊
356␉␉␉␉resource_template_register_fixedhw[11] = 0x10; // C2␊
357␉␉␉␉aml_add_buffer(tmpl, resource_template_register_fixedhw, sizeof(resource_template_register_fixedhw));␊
358␉␉␉␉aml_add_byte(tmpl, 0x02);␉␉// C2␊
359␉␉␉␉aml_add_word(tmpl, 0x0040);␉␉// Latency␊
360␉␉␉␉aml_add_dword(tmpl, 0x000001f4);␉// Power␊
361␉␉␉}␊
362␊
363␉␉␉if (c4_enabled) // C4␊
364␉␉␉{␊
365␉␉␉␉tmpl = aml_add_package(pack);␊
366␉␉␉␉resource_template_register_fixedhw[11] = 0x30; // C4␊
367␉␉␉␉aml_add_buffer(tmpl, resource_template_register_fixedhw, sizeof(resource_template_register_fixedhw));␊
368␉␉␉␉aml_add_byte(tmpl, 0x04);␉␉// C4␊
369␉␉␉␉aml_add_word(tmpl, 0x0080);␉␉// Latency␊
370␉␉␉␉aml_add_dword(tmpl, 0x000000C8);␉// Power␊
371␉␉␉}␊
372␉␉␉else if (c3_enabled)␊
373␉␉␉{␊
374␉␉␉␉tmpl = aml_add_package(pack);␊
375␉␉␉␉resource_template_register_fixedhw[11] = 0x20; // C3␊
376␉␉␉␉aml_add_buffer(tmpl, resource_template_register_fixedhw, sizeof(resource_template_register_fixedhw));␊
377␉␉␉␉aml_add_byte(tmpl, 0x03);␉␉// C3␊
378␉␉␉␉aml_add_word(tmpl, 0x0060);␉␉// Latency␊
379␉␉␉␉aml_add_dword(tmpl, 0x0000015e);␉// Power␊
380␉␉␉}␊
381␉␉}␊
382␊
383␉␉// Aliaces␊
384␉␉int i;␊
385␉␉for (i = 0; i < acpi_cpu_count; i++) ␊
386␉␉{␊
387␉␉␉char name[9];␊
388␉␉␉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]);␊
389␊
390␉␉␉scop = aml_add_scope(root, name);␊
391␉␉␉␉aml_add_alias(scop, "CST_", "_CST");␊
392␉␉}␊
393␊
394␉␉aml_calculate_size(root);␊
395␊
396␉␉struct acpi_2_ssdt *ssdt = (struct acpi_2_ssdt *)AllocateKernelMemory(root->Size);␊
397␊
398␉␉aml_write_node(root, (void*)ssdt, 0);␊
399␊
400␉␉ssdt->Length = root->Size;␊
401␉␉ssdt->Checksum = 0;␊
402␉␉ssdt->Checksum = 256 - checksum8(ssdt, ssdt->Length);␊
403␊
404␉␉aml_destroy_node(root);␊
405␊
406␉␉// dumpPhysAddr("C-States SSDT content: ", ssdt, ssdt->Length);␊
407␉␉␊
408␉␉verbose ("SSDT with CPU C-States generated successfully\n");␊
409␊
410␉␉return ssdt;␊
411␉}␊
412␉else␊
413␉{␊
414␉␉verbose ("ACPI CPUs not found: C-States not generated !!!\n");␊
415␉}␊
416␊
417␉return NULL;␊
418}␊
419␊
420struct acpi_2_ssdt *generate_pss_ssdt(struct acpi_2_dsdt* dsdt)␊
421{␊
422␉char ssdt_header[] =␊
423␉{␊
424␉␉0x53, 0x53, 0x44, 0x54, 0x7E, 0x00, 0x00, 0x00, /* SSDT.... */␊
425␉␉0x01, 0x6A, 0x50, 0x6D, 0x52, 0x65, 0x66, 0x00, /* ..PmRef. */␊
426␉␉0x43, 0x70, 0x75, 0x50, 0x6D, 0x00, 0x00, 0x00, /* CpuPm... */␊
427␉␉0x00, 0x30, 0x00, 0x00, 0x49, 0x4E, 0x54, 0x4C, /* .0..INTL */␊
428␉␉0x31, 0x03, 0x10, 0x20,␉␉␉␉␉␉␉/* 1.._␉␉*/␊
429␉};␊
430␊
431␉if (Platform.CPU.Vendor != 0x756E6547)␊
432␉{␊
433␉␉verbose ("Not an Intel platform: P-States will not be generated !!!\n");␊
434␉␉return NULL;␊
435␉}␊
436␊
437␉if (!(Platform.CPU.Features & CPU_FEATURE_MSR))␊
438␉{␊
439␉␉verbose ("Unsupported CPU: P-States will not be generated !!! No MSR support\n");␊
440␉␉return NULL;␊
441␉}␊
442␊
443␉if (acpi_cpu_count == 0)␊
444␉␉get_acpi_cpu_names((void*)dsdt, dsdt->Length);␊
445␊
446␉if (acpi_cpu_count > 0)␊
447␉{␊
448␉␉struct p_state initial, maximum, minimum, p_states[32];␊
449␉␉uint8_t p_states_count = 0;␊
450␊
451␉␉// Retrieving P-States, ported from code by superhai (c)␊
452␉␉switch (Platform.CPU.Family) {␊
453␉␉␉case 0x06:␊
454␉␉␉{␊
455␉␉␉␉switch (Platform.CPU.Model) ␊
456␉␉␉␉{␊
457␉␉␉␉␉case CPU_MODEL_DOTHAN:␉// Intel Pentium M␊
458␉␉␉␉␉case CPU_MODEL_YONAH:␉// Intel Mobile Core Solo, Duo␊
459␉␉␉␉␉case CPU_MODEL_MEROM:␉// Intel Mobile Core 2 Solo, Duo, Xeon 30xx, Xeon 51xx, Xeon X53xx, Xeon E53xx, Xeon X32xx␊
460␉␉␉␉␉case CPU_MODEL_PENRYN:␉// Intel Core 2 Solo, Duo, Quad, Extreme, Xeon X54xx, Xeon X33xx␊
461␉␉␉␉␉case CPU_MODEL_ATOM:␉// Intel Atom (45nm)␊
462␉␉␉␉␉{␊
463␉␉␉␉␉␉bool cpu_dynamic_fsb = false;␊
464␊
465␉␉␉␉␉␉if (rdmsr64(MSR_IA32_EXT_CONFIG) & (1 << 27)) ␊
466␉␉␉␉␉␉{␊
467␉␉␉␉␉␉␉wrmsr64(MSR_IA32_EXT_CONFIG, (rdmsr64(MSR_IA32_EXT_CONFIG) | (1 << 28))); ␊
468␉␉␉␉␉␉␉delay(1);␊
469␉␉␉␉␉␉␉cpu_dynamic_fsb = rdmsr64(MSR_IA32_EXT_CONFIG) & (1 << 28);␊
470␉␉␉␉␉␉}␊
471␊
472␉␉␉␉␉␉bool cpu_noninteger_bus_ratio = (rdmsr64(MSR_IA32_PERF_STATUS) & (1ULL << 46));␊
473␊
474␉␉␉␉␉␉initial.Control = rdmsr64(MSR_IA32_PERF_STATUS);␊
475␊
476␉␉␉␉␉␉maximum.Control = ((rdmsr64(MSR_IA32_PERF_STATUS) >> 32) & 0x1F3F) | (0x4000 * cpu_noninteger_bus_ratio);␊
477␉␉␉␉␉␉maximum.CID = ((maximum.FID & 0x1F) << 1) | cpu_noninteger_bus_ratio;␊
478␊
479␉␉␉␉␉␉minimum.FID = ((rdmsr64(MSR_IA32_PERF_STATUS) >> 24) & 0x1F) | (0x80 * cpu_dynamic_fsb);␊
480␉␉␉␉␉␉minimum.VID = ((rdmsr64(MSR_IA32_PERF_STATUS) >> 48) & 0x3F);␊
481␊
482␉␉␉␉␉␉if (minimum.FID == 0) ␊
483␉␉␉␉␉␉{␊
484␉␉␉␉␉␉␉uint64_t msr;␊
485␉␉␉␉␉␉␉uint8_t i;␊
486␉␉␉␉␉␉␉// Probe for lowest fid␊
487␉␉␉␉␉␉␉for (i = maximum.FID; i >= 0x6; i--)␊
488␉␉␉␉␉␉␉{␊
489␉␉␉␉␉␉␉␉msr = rdmsr64(MSR_IA32_PERF_CONTROL);␊
490␉␉␉␉␉␉␉␉wrmsr64(MSR_IA32_PERF_CONTROL, (msr & 0xFFFFFFFFFFFF0000ULL) | (i << 8) | minimum.VID);␊
491␉␉␉␉␉␉␉␉intel_waitforsts();␊
492␉␉␉␉␉␉␉␉minimum.FID = (rdmsr64(MSR_IA32_PERF_STATUS) >> 8) & 0x1F; ␊
493␉␉␉␉␉␉␉␉delay(1);␊
494␉␉␉␉␉␉␉}␊
495␊
496␉␉␉␉␉␉␉msr = rdmsr64(MSR_IA32_PERF_CONTROL);␊
497␉␉␉␉␉␉␉wrmsr64(MSR_IA32_PERF_CONTROL, (msr & 0xFFFFFFFFFFFF0000ULL) | (maximum.FID << 8) | maximum.VID);␊
498␉␉␉␉␉␉␉intel_waitforsts();␊
499␉␉␉␉␉␉}␊
500␊
501␉␉␉␉␉␉if (minimum.VID == maximum.VID) ␊
502␉␉␉␉␉␉{␊
503␉␉␉␉␉␉␉uint64_t msr;␊
504␉␉␉␉␉␉␉uint8_t i;␊
505␉␉␉␉␉␉␉// Probe for lowest vid␊
506␉␉␉␉␉␉␉for (i = maximum.VID; i > 0xA; i--) ␊
507␉␉␉␉␉␉␉{␊
508␉␉␉␉␉␉␉␉msr = rdmsr64(MSR_IA32_PERF_CONTROL);␊
509␉␉␉␉␉␉␉␉wrmsr64(MSR_IA32_PERF_CONTROL, (msr & 0xFFFFFFFFFFFF0000ULL) | (minimum.FID << 8) | i);␊
510␉␉␉␉␉␉␉␉intel_waitforsts();␊
511␉␉␉␉␉␉␉␉minimum.VID = rdmsr64(MSR_IA32_PERF_STATUS) & 0x3F; ␊
512␉␉␉␉␉␉␉␉delay(1);␊
513␉␉␉␉␉␉␉}␊
514␊
515␉␉␉␉␉␉␉msr = rdmsr64(MSR_IA32_PERF_CONTROL);␊
516␉␉␉␉␉␉␉wrmsr64(MSR_IA32_PERF_CONTROL, (msr & 0xFFFFFFFFFFFF0000ULL) | (maximum.FID << 8) | maximum.VID);␊
517␉␉␉␉␉␉␉intel_waitforsts();␊
518␉␉␉␉␉␉}␊
519␊
520␉␉␉␉␉␉minimum.CID = ((minimum.FID & 0x1F) << 1) >> cpu_dynamic_fsb;␊
521␊
522␉␉␉␉␉␉// Sanity check␊
523␉␉␉␉␉␉if (maximum.CID < minimum.CID) ␊
524␉␉␉␉␉␉{␊
525␉␉␉␉␉␉␉DBG("P-States: Insane FID values!");␊
526␉␉␉␉␉␉␉p_states_count = 0;␊
527␉␉␉␉␉␉}␊
528␉␉␉␉␉␉else␊
529␉␉␉␉␉␉{␊
530␉␉␉␉␉␉␉// Finalize P-States␊
531␉␉␉␉␉␉␉// Find how many P-States machine supports␊
532␉␉␉␉␉␉␉p_states_count = maximum.CID - minimum.CID + 1;␊
533␊
534␉␉␉␉␉␉␉if (p_states_count > 32) ␊
535␉␉␉␉␉␉␉␉p_states_count = 32;␊
536␊
537␉␉␉␉␉␉␉uint8_t vidstep;␊
538␉␉␉␉␉␉␉uint8_t i = 0, u, invalid = 0;␊
539␊
540␉␉␉␉␉␉␉vidstep = ((maximum.VID << 2) - (minimum.VID << 2)) / (p_states_count - 1);␊
541␊
542␉␉␉␉␉␉␉for (u = 0; u < p_states_count; u++) ␊
543␉␉␉␉␉␉␉{␊
544␉␉␉␉␉␉␉␉i = u - invalid;␊
545␊
546␉␉␉␉␉␉␉␉p_states[i].CID = maximum.CID - u;␊
547␉␉␉␉␉␉␉␉p_states[i].FID = (p_states[i].CID >> 1);␊
548␊
549␉␉␉␉␉␉␉␉if (p_states[i].FID < 0x6) ␊
550␉␉␉␉␉␉␉␉{␊
551␉␉␉␉␉␉␉␉␉if (cpu_dynamic_fsb) ␊
552␉␉␉␉␉␉␉␉␉␉p_states[i].FID = (p_states[i].FID << 1) | 0x80;␊
553␉␉␉␉␉␉␉␉}␊
554␉␉␉␉␉␉␉␉else if (cpu_noninteger_bus_ratio) ␊
555␉␉␉␉␉␉␉␉{␊
556␉␉␉␉␉␉␉␉␉p_states[i].FID = p_states[i].FID | (0x40 * (p_states[i].CID & 0x1));␊
557␉␉␉␉␉␉␉␉}␊
558␊
559␉␉␉␉␉␉␉␉if (i && p_states[i].FID == p_states[i-1].FID)␊
560␉␉␉␉␉␉␉␉␉invalid++;␊
561␊
562␉␉␉␉␉␉␉␉p_states[i].VID = ((maximum.VID << 2) - (vidstep * u)) >> 2;␊
563␊
564␉␉␉␉␉␉␉␉uint32_t multiplier = p_states[i].FID & 0x1f;␉␉// = 0x08␊
565␉␉␉␉␉␉␉␉bool half = p_states[i].FID & 0x40;␉␉␉␉␉// = 0x01␊
566␉␉␉␉␉␉␉␉bool dfsb = p_states[i].FID & 0x80;␉␉␉␉␉// = 0x00␊
567␉␉␉␉␉␉␉␉uint32_t fsb = Platform.CPU.FSBFrequency / 1000000; // = 400␊
568␉␉␉␉␉␉␉␉uint32_t halffsb = (fsb + 1) >> 1;␉␉␉␉␉// = 200␊
569␉␉␉␉␉␉␉␉uint32_t frequency = (multiplier * fsb);␉␉␉// = 3200␊
570␊
571␉␉␉␉␉␉␉␉p_states[i].Frequency = (frequency + (half * halffsb)) >> dfsb;␉// = 3200 + 200 = 3400␊
572␉␉␉␉␉␉␉}␊
573␊
574␉␉␉␉␉␉␉p_states_count -= invalid;␊
575␉␉␉␉␉␉}␊
576␊
577␉␉␉␉␉␉break;␊
578␉␉␉␉␉}␊
579␉␉␉␉␉case CPU_MODEL_FIELDS:␉␉// Intel Core i5, i7, Xeon X34xx LGA1156 (45nm)␊
580␉␉␉␉␉case CPU_MODEL_DALES:␉␉␊
581␉␉␉␉␉case CPU_MODEL_CLARKDALE:␉// Intel Core i3, i5 LGA1156 (32nm)␊
582␉␉␉␉␉case CPU_MODEL_NEHALEM:␉␉// Intel Core i7, Xeon W35xx, Xeon X55xx, Xeon E55xx LGA1366 (45nm)␊
583␉␉␉␉␉case CPU_MODEL_NEHALEM_EX:␉// Intel Xeon X75xx, Xeon X65xx, Xeon E75xx, Xeon E65xx␊
584␉␉␉␉␉case CPU_MODEL_WESTMERE:␉// Intel Core i7, Xeon X56xx, Xeon E56xx, Xeon W36xx LGA1366 (32nm) 6 Core␊
585␉␉␉␉␉case CPU_MODEL_WESTMERE_EX:␉// Intel Xeon E7␊
586␉␉␉␉␉case CPU_MODEL_SANDYBRIDGE:␉// Intel Core i3, i5, i7 LGA1155 (32nm)␊
587␉␉␉␉␉case CPU_MODEL_IVYBRIDGE:␉// Intel Core i3, i5, i7 LGA1155 (22nm)␊
588␉␉␉␉␉case CPU_MODEL_IVYBRIDGE_E5:␊
589␉␉␉␉␉case CPU_MODEL_JAKETOWN:␉// Intel Core i7, Xeon E5 LGA2011 (32nm)␊
590␊
591␉␉␉␉␉{␊
592␉␉␉␉␉if ((Platform.CPU.Model == CPU_MODEL_SANDYBRIDGE) || (Platform.CPU.Model == CPU_MODEL_IVYBRIDGE) || (Platform.CPU.Model == CPU_MODEL_IVYBRIDGE_E5) ||(Platform.CPU.Model == CPU_MODEL_JAKETOWN))␊
593␉␉␉␉␉{␊
594␉␉␉␉␉␉maximum.Control = (rdmsr64(MSR_IA32_PERF_STATUS) >> 8) & 0xff;␊
595␉␉␉␉␉}␊
596␉␉␉␉␉else␊
597␉␉␉␉␉{␊
598␉␉␉␉␉␉maximum.Control = rdmsr64(MSR_IA32_PERF_STATUS) & 0xff;␊
599␉␉␉␉␉}␊
600␊
601␉␉␉␉␉minimum.Control = (rdmsr64(MSR_PLATFORM_INFO) >> 40) & 0xff;␊
602␊
603␉␉␉␉␉␉verbose("P-States: min 0x%x, max 0x%x\n", minimum.Control, maximum.Control);␉␉␉␊
604␊
605␉␉␉␉␉␉// Sanity check␊
606␉␉␉␉␉␉if (maximum.Control < minimum.Control) ␊
607␉␉␉␉␉␉{␊
608␉␉␉␉␉␉␉DBG("Insane control values!");␊
609␉␉␉␉␉␉␉p_states_count = 0;␊
610␉␉␉␉␉␉}␊
611␉␉␉␉␉␉else␊
612␉␉␉␉␉␉{␊
613␉␉␉␉␉␉␉uint8_t i;␊
614␉␉␉␉␉␉␉p_states_count = 0;␊
615␊
616␉␉␉␉␉␉␉for (i = maximum.Control; i >= minimum.Control; i--) ␊
617␉␉␉␉␉␉␉{␊
618␉␉␉␉␉␉␉␉p_states[p_states_count].Control = i;␊
619␉␉␉␉␉␉␉␉p_states[p_states_count].CID = p_states[p_states_count].Control << 1;␊
620␉␉␉␉␉␉␉␉p_states[p_states_count].Frequency = (Platform.CPU.FSBFrequency / 1000000) * i;␊
621␉␉␉␉␉␉␉␉p_states_count++;␊
622␉␉␉␉␉␉␉}␊
623␉␉␉␉␉␉}␊
624␉␉␉␉␉␉␊
625␉␉␉␉␉␉break;␊
626␉␉␉␉␉}␊
627␉␉␉␉␉default:␊
628␉␉␉␉␉␉verbose ("Unsupported CPU: P-States not generated !!! Unknown CPU Type\n");␊
629␉␉␉␉␉␉break;␊
630␉␉␉␉}␊
631␉␉␉}␊
632␉␉}␊
633␊
634␉␉// Generating SSDT␊
635␉␉if (p_states_count > 0)␊
636␉␉{␊
637␉␉␉int i;␊
638␊
639␉␉␉struct aml_chunk* root = aml_create_node(NULL);␊
640␉␉␉␉aml_add_buffer(root, ssdt_header, sizeof(ssdt_header)); // SSDT header␊
641␊
642␉␉␉␉␉struct aml_chunk* scop = aml_add_scope(root, "\\_PR_");␊
643␉␉␉␉␉␉struct aml_chunk* name = aml_add_name(scop, "PSS_");␊
644␉␉␉␉␉␉␉struct aml_chunk* pack = aml_add_package(name);␊
645␉␉␉␊
646␉␉␉␉␉␉␉␉for (i = 0; i < p_states_count; i++)␊
647␉␉␉␉␉␉␉␉{␊
648␉␉␉␉␉␉␉␉␉struct aml_chunk* pstt = aml_add_package(pack);␊
649␊
650␉␉␉␉␉␉␉␉␉aml_add_dword(pstt, p_states[i].Frequency);␊
651␉␉␉␉␉␉␉␉␉aml_add_dword(pstt, 0x00000000); // Power␊
652␉␉␉␉␉␉␉␉␉aml_add_dword(pstt, 0x0000000A); // Latency␊
653␉␉␉␉␉␉␉␉␉aml_add_dword(pstt, 0x0000000A); // Latency␊
654␉␉␉␉␉␉␉␉␉aml_add_dword(pstt, p_states[i].Control);␊
655␉␉␉␉␉␉␉␉␉aml_add_dword(pstt, i+1); // Status␊
656␉␉␉␉␉␉␉␉}␊
657␊
658␉␉␉// Add aliaces␊
659␉␉␉for (i = 0; i < acpi_cpu_count; i++) ␊
660␉␉␉{␊
661␉␉␉␉char name[9];␊
662␉␉␉␉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]);␊
663␊
664␉␉␉␉scop = aml_add_scope(root, name);␊
665␉␉␉␉aml_add_alias(scop, "PSS_", "_PSS");␊
666␉␉␉}␊
667␊
668␉␉␉aml_calculate_size(root);␊
669␊
670␉␉␉struct acpi_2_ssdt *ssdt = (struct acpi_2_ssdt *)AllocateKernelMemory(root->Size);␊
671␊
672␉␉␉aml_write_node(root, (void*)ssdt, 0);␊
673␊
674␉␉␉ssdt->Length = root->Size;␊
675␉␉␉ssdt->Checksum = 0;␊
676␉␉␉ssdt->Checksum = 256 - checksum8(ssdt, ssdt->Length);␊
677␊
678␉␉␉aml_destroy_node(root);␊
679␊
680␉␉␉//dumpPhysAddr("P-States SSDT content: ", ssdt, ssdt->Length);␊
681␊
682␉␉␉verbose ("SSDT with CPU P-States generated successfully\n");␊
683␊
684␉␉␉return ssdt;␊
685␉␉}␊
686␉}␊
687␉else ␊
688␉{␊
689␉␉verbose ("ACPI CPUs not found: P-States not generated !!!\n");␊
690␉}␊
691␊
692␉return NULL;␊
693}␊
694␊
695struct acpi_2_fadt *patch_fadt(struct acpi_2_fadt *fadt, struct acpi_2_dsdt *new_dsdt)␊
696{␊
697␉extern void setupSystemType(); ␊
698␊
699␉struct acpi_2_fadt *fadt_mod;␊
700␉bool fadt_rev2_needed = false;␊
701␉bool fix_restart;␊
702␉bool fix_restart_ps2;␊
703␉const char * value;␊
704␊
705␉// Restart Fix␊
706␉if (Platform.CPU.Vendor == 0x756E6547)␊
707␉{␉/* Intel */␊
708␉␉fix_restart = true;␊
709␉␉fix_restart_ps2 = false;␊
710␉␉if ( getBoolForKey(kPS2RestartFix, &fix_restart_ps2, &bootInfo->chameleonConfig) && fix_restart_ps2)␊
711␉␉{␊
712␉␉␉fix_restart = true;␊
713␉␉}␊
714␉␉else␊
715␉␉{␊
716␉␉␉getBoolForKey(kRestartFix, &fix_restart, &bootInfo->chameleonConfig);␊
717␉␉}␊
718␉}␊
719␉else␊
720␉{␊
721␉␉verbose ("Not an Intel platform: Restart Fix not applied !!!\n");␊
722␉␉fix_restart = false;␊
723␉}␊
724␊
725␉if (fix_restart)␊
726␉{␊
727␉␉fadt_rev2_needed = true;␊
728␉}␊
729␊
730␉// Allocate new fadt table␊
731␉if (fadt->Length < 0x84 && fadt_rev2_needed)␊
732␉{␊
733␉␉fadt_mod=(struct acpi_2_fadt *)AllocateKernelMemory(0x84);␊
734␉␉memcpy(fadt_mod, fadt, fadt->Length);␊
735␉␉fadt_mod->Length = 0x84;␊
736␉␉fadt_mod->Revision = 0x02; // FADT rev 2 (ACPI 1.0B MS extensions)␊
737␉}␊
738␉else␊
739␉{␊
740␉␉fadt_mod=(struct acpi_2_fadt *)AllocateKernelMemory(fadt->Length);␊
741␉␉memcpy(fadt_mod, fadt, fadt->Length);␊
742␉}␊
743␉// Determine system type / PM_Model␊
744␉if ( (value=getStringForKey(kSystemType, &bootInfo->chameleonConfig))!=NULL)␊
745␉{␊
746␉␉if (Platform.Type > 6) ␊
747␉␉{␊
748␉␉␉if(fadt_mod->PM_Profile<=6)␊
749␉␉␉{␊
750␉␉␉␉Platform.Type = fadt_mod->PM_Profile; // get the fadt if correct␊
751␉␉␉}␊
752␉␉␉else␊
753␉␉␉{␊
754␉␉␉␉Platform.Type = 1;␉␉/* Set a fixed value (Desktop) */␊
755␉␉␉}␊
756␉␉␉verbose("Error: system-type must be 0..6. Defaulting to %d !\n", Platform.Type);␊
757␉␉}␊
758␉␉else␊
759␉␉{␊
760␉␉␉Platform.Type = (unsigned char) strtoul(value, NULL, 10);␊
761␉␉}␊
762␉}␊
763␉// Set PM_Profile from System-type if only user wanted this value to be forced␊
764␉if (fadt_mod->PM_Profile != Platform.Type) ␊
765␉{␊
766␉␉if (value) ␊
767␉␉{␊
768␉␉␉// user has overriden the SystemType so take care of it in FACP␊
769␉␉␉verbose("FADT: changing PM_Profile from 0x%02x to 0x%02x\n", fadt_mod->PM_Profile, Platform.Type);␊
770␉␉␉fadt_mod->PM_Profile = Platform.Type;␊
771␉␉}␊
772␉␉else␊
773␉␉{␊
774␉␉␉// PM_Profile has a different value and no override has been set, so reflect the user value to ioregs␊
775␉␉␉Platform.Type = fadt_mod->PM_Profile <= 6 ? fadt_mod->PM_Profile : 1;␊
776␉␉}␊
777␉}␊
778␉// We now have to write the systemm-type in ioregs: we cannot do it before in setupDeviceTree()␊
779␉// because we need to take care of facp original content, if it is correct.␊
780␉setupSystemType();␊
781␊
782␉// Patch FADT to fix restart␊
783␉if (fix_restart)␊
784␉{␊
785␉␉if (fix_restart_ps2)␊
786␉␉{␊
787␉␉␉fadt_mod->Flags|= 0x400;␊
788␉␉␉fadt_mod->Reset_SpaceID␉␉= 0x01; // System I/O␊
789␉␉␉fadt_mod->Reset_BitWidth␉= 0x08; // 1 byte␊
790␉␉␉fadt_mod->Reset_BitOffset␉= 0x00; // Offset 0␊
791␉␉␉fadt_mod->Reset_AccessWidth␉= 0x01; // Byte access␊
792␉␉␉fadt_mod->Reset_Address␉␉= 0x64; // Address of the register␊
793␉␉␉fadt_mod->Reset_Value␉␉= 0xfe; // Value to write to reset the system␊
794␉␉␉msglog("FADT: PS2 Restart Fix applied!\n");␊
795␉␉}␊
796␉␉else␊
797␉␉{␊
798␉␉␉fadt_mod->Flags|= 0x400;␊
799␉␉␉fadt_mod->Reset_SpaceID␉␉= 0x01; // System I/O␊
800␉␉␉fadt_mod->Reset_BitWidth␉= 0x08; // 1 byte␊
801␉␉␉fadt_mod->Reset_BitOffset␉= 0x00; // Offset 0␊
802␉␉␉fadt_mod->Reset_AccessWidth␉= 0x01; // Byte access␊
803␉␉␉fadt_mod->Reset_Address␉␉= 0x0cf9; // Address of the register␊
804␉␉␉fadt_mod->Reset_Value␉␉= 0x06; // Value to write to reset the system␊
805␉␉␉verbose("FADT: ACPI Restart Fix applied!\n");␊
806␉␉}␊
807␊
808␉}␊
809␊
810␉// Patch DSDT Address if we have loaded DSDT.aml␊
811␉if(new_dsdt)␊
812␉{␊
813␉␉DBG("DSDT: Old @%x,%x, ",fadt_mod->DSDT,fadt_mod->X_DSDT);␊
814␊
815␉␉fadt_mod->DSDT=(uint32_t)new_dsdt;␊
816␉␉if ((uint32_t)(&(fadt_mod->X_DSDT))-(uint32_t)fadt_mod+8<=fadt_mod->Length)␊
817␉␉{␊
818␉␉␉fadt_mod->X_DSDT=(uint32_t)new_dsdt;␊
819␉␉}␊
820␊
821␉␉DBG("New @%x,%x\n",fadt_mod->DSDT,fadt_mod->X_DSDT);␊
822␊
823␉␉verbose("FADT: Using custom DSDT!\n");␊
824␉}␊
825␊
826␉// Correct the checksum␊
827␉fadt_mod->Checksum=0;␊
828␉fadt_mod->Checksum=256-checksum8(fadt_mod,fadt_mod->Length);␊
829␊
830␉return fadt_mod;␊
831}␊
832␊
833/* Setup ACPI without replacing DSDT. */␊
834int setupAcpiNoMod()␊
835{␊
836//␉addConfigurationTable(&gEfiAcpiTableGuid, getAddressOfAcpiTable(), "ACPI");␊
837//␉addConfigurationTable(&gEfiAcpi20TableGuid, getAddressOfAcpi20Table(), "ACPI_20");␊
838␉/* XXX aserebln why uint32 cast if pointer is uint64 ? */␊
839␉acpi10_p = (uint32_t)getAddressOfAcpiTable();␊
840␉acpi20_p = (uint32_t)getAddressOfAcpi20Table();␊
841␉addConfigurationTable(&gEfiAcpiTableGuid, &acpi10_p, "ACPI");␊
842␉if(acpi20_p) addConfigurationTable(&gEfiAcpi20TableGuid, &acpi20_p, "ACPI_20");␊
843␉return 1;␊
844}␊
845␊
846/* Setup ACPI. Replace DSDT if DSDT.aml is found */␊
847int setupAcpi(void)␊
848{␊
849␉int version;␊
850␉void *new_dsdt;␊
851␊
852␉const char *filename;␊
853␉char dirSpec[128];␊
854␉int len = 0;␊
855␊
856␉// always reset cpu count to 0 when injecting new acpi␊
857␉acpi_cpu_count = 0;␊
858␊
859␉// Try using the file specified with the DSDT option␊
860␉if (getValueForKey(kDSDT, &filename, &len, &bootInfo->chameleonConfig))␊
861␉{␊
862␉␉sprintf(dirSpec, filename);␊
863␉}␊
864␉else␊
865␉{␊
866␉␉sprintf(dirSpec, "DSDT.aml");␊
867␉}␊
868␊
869␉// Load replacement DSDT␊
870␉new_dsdt = loadACPITable(dirSpec);␊
871␉// Mozodojo: going to patch FACP and load SSDT's even if DSDT.aml is not present␊
872␉/*if (!new_dsdt)␊
873␉ {␊
874␉ return setupAcpiNoMod();␊
875␉ }*/␊
876␊
877␉// Mozodojo: Load additional SSDTs␊
878␉struct acpi_2_ssdt *new_ssdt[32]; // 30 + 2 additional tables for pss & cst␊
879␉int ssdt_count=0;␊
880␊
881␉// SSDT Options␊
882␉bool drop_ssdt=false, generate_pstates=false, generate_cstates=false; ␊
883␊
884␉getBoolForKey(kDropSSDT, &drop_ssdt, &bootInfo->chameleonConfig);␊
885␉getBoolForKey(kGeneratePStates, &generate_pstates, &bootInfo->chameleonConfig);␊
886␉getBoolForKey(kGenerateCStates, &generate_cstates, &bootInfo->chameleonConfig);␊
887␊
888␉DBG("generating p-states config: %d\n", generate_pstates);␊
889␉DBG("generating c-states config: %d\n", generate_cstates);␊
890␊
891␉{␊
892␉␉int i;␊
893␊
894␉␉for (i=0; i<30; i++)␊
895␉␉{␊
896␉␉␉char filename[512];␊
897␊
898␉␉␉sprintf(filename, i>0?"SSDT-%d.aml":"SSDT.aml", i);␊
899␊
900␉␉␉if ( (new_ssdt[ssdt_count] = loadACPITable(filename)) )␊
901␉␉␉{␊
902␉␉␉␉ssdt_count++;␊
903␉␉␉}␊
904␉␉␉else␊
905␉␉␉{␊
906␉␉␉␉break;␊
907␉␉␉}␊
908␉␉}␊
909␉}␊
910␊
911␉// Do the same procedure for both versions of ACPI␊
912␉for (version=0; version<2; version++)␊
913␉{␊
914␉␉struct acpi_2_rsdp *rsdp, *rsdp_mod;␊
915␉␉struct acpi_2_rsdt *rsdt, *rsdt_mod;␊
916␉␉int rsdplength;␊
917␊
918␉␉// Find original rsdp␊
919␉␉rsdp=(struct acpi_2_rsdp *)(version?getAddressOfAcpi20Table():getAddressOfAcpiTable());␊
920␉␉if (!rsdp)␊
921␉␉{␊
922␉␉␉DBG("No ACPI version %d found. Ignoring\n", version+1);␊
923␉␉␉if (version)␊
924␉␉␉{␊
925␉␉␉␉addConfigurationTable(&gEfiAcpi20TableGuid, NULL, "ACPI_20");␊
926␉␉␉}␊
927␉␉␉else␊
928␉␉␉{␊
929␉␉␉␉addConfigurationTable(&gEfiAcpiTableGuid, NULL, "ACPI");␊
930␉␉␉}␊
931␉␉␉continue;␊
932␉␉}␊
933␉␉rsdplength=version?rsdp->Length:20;␊
934␊
935␉␉DBG("RSDP version %d found @%x. Length=%d\n",version+1,rsdp,rsdplength);␊
936␊
937␉␉/* FIXME: no check that memory allocation succeeded ␊
938␉␉ * Copy and patch RSDP,RSDT, XSDT and FADT␊
939␉␉ * For more info see ACPI Specification pages 110 and following␊
940␉␉ */␊
941␊
942␉␉rsdp_mod=(struct acpi_2_rsdp *) AllocateKernelMemory(rsdplength);␊
943␉␉memcpy(rsdp_mod, rsdp, rsdplength);␊
944␊
945␉␉rsdt=(struct acpi_2_rsdt *)(rsdp->RsdtAddress);␊
946␊
947␉␉DBG("RSDT @%x, Length %d\n",rsdt, rsdt->Length);␊
948␉␉␊
949␉␉if (rsdt && (uint32_t)rsdt !=0xffffffff && rsdt->Length<0x10000)␊
950␉␉{␊
951␉␉␉uint32_t *rsdt_entries;␊
952␉␉␉int rsdt_entries_num;␊
953␉␉␉int dropoffset=0, i;␊
954␊
955␉␉␉// mozo: using malloc cos I didn't found how to free already allocated kernel memory␊
956␉␉␉rsdt_mod=(struct acpi_2_rsdt *)malloc(rsdt->Length); ␊
957␉␉␉memcpy (rsdt_mod, rsdt, rsdt->Length);␊
958␉␉␉rsdp_mod->RsdtAddress=(uint32_t)rsdt_mod;␊
959␉␉␉rsdt_entries_num=(rsdt_mod->Length-sizeof(struct acpi_2_rsdt))/4;␊
960␉␉␉rsdt_entries=(uint32_t *)(rsdt_mod+1);␊
961␉␉␉for (i=0;i<rsdt_entries_num;i++)␊
962␉␉␉{␊
963␉␉␉␉char *table=(char *)(rsdt_entries[i]);␊
964␉␉␉␉if (!table)␊
965␉␉␉␉{␊
966␉␉␉␉␉continue;␊
967␉␉␉␉}␊
968␊
969␉␉␉␉DBG("TABLE %c%c%c%c,",table[0],table[1],table[2],table[3]);␊
970␊
971␉␉␉␉rsdt_entries[i-dropoffset]=rsdt_entries[i];␊
972␊
973␉␉␉␉if (drop_ssdt && tableSign(table, "SSDT"))␊
974␉␉␉␉{␊
975␉␉␉␉␉dropoffset++;␊
976␉␉␉␉␉continue;␊
977␉␉␉␉}␊
978␉␉␉␉if (tableSign(table, "DSDT"))␊
979␉␉␉␉{␊
980␉␉␉␉␉DBG("DSDT found\n");␊
981␊
982␉␉␉␉␉if(new_dsdt)␊
983␉␉␉␉␉{␊
984␉␉␉␉␉␉rsdt_entries[i-dropoffset]=(uint32_t)new_dsdt;␊
985␉␉␉␉␉}␊
986␊
987␉␉␉␉␉continue;␊
988␉␉␉␉}␊
989␉␉␉␉if (tableSign(table, "FACP"))␊
990␉␉␉␉{␊
991␉␉␉␉␉struct acpi_2_fadt *fadt, *fadt_mod;␊
992␉␉␉␉␉fadt=(struct acpi_2_fadt *)rsdt_entries[i];␊
993␊
994␉␉␉␉␉DBG("FADT found @%x, Length %d\n",fadt, fadt->Length);␊
995␊
996␉␉␉␉␉if (!fadt || (uint32_t)fadt == 0xffffffff || fadt->Length>0x10000)␊
997␉␉␉␉␉{␊
998␉␉␉␉␉␉printf("FADT incorrect. Not modified\n");␊
999␉␉␉␉␉␉continue;␊
1000␉␉␉␉␉}␊
1001␉␉␉␉␉␊
1002␉␉␉␉␉fadt_mod = patch_fadt(fadt, new_dsdt);␊
1003␉␉␉␉␉rsdt_entries[i-dropoffset]=(uint32_t)fadt_mod;␊
1004␉␉␉␉␉␊
1005␉␉␉␉␉// Generate _CST SSDT␊
1006␉␉␉␉␉if (generate_cstates && (new_ssdt[ssdt_count] = generate_cst_ssdt(fadt_mod)))␊
1007␉␉␉␉␉{␊
1008␉␉␉␉␉␉DBG("C-States generated\n");␊
1009␉␉␉␉␉␉generate_cstates = false; // Generate SSDT only once!␊
1010␉␉␉␉␉␉ssdt_count++;␊
1011␉␉␉␉␉}␊
1012␊
1013␉␉␉␉␉// Generating _PSS SSDT␊
1014␉␉␉␉␉if (generate_pstates && (new_ssdt[ssdt_count] = generate_pss_ssdt((void*)fadt_mod->DSDT)))␊
1015␉␉␉␉␉{␊
1016␉␉␉␉␉␉DBG("P-States generated\n");␊
1017␉␉␉␉␉␉generate_pstates = false; // Generate SSDT only once!␊
1018␉␉␉␉␉␉ssdt_count++;␊
1019␉␉␉␉␉}␊
1020␊
1021␉␉␉␉␉continue;␊
1022␉␉␉␉}␊
1023␉␉␉}␊
1024␉␉␉DBG("\n");␊
1025␊
1026␉␉␉// Allocate rsdt in Kernel memory area␊
1027␉␉␉rsdt_mod->Length += 4*ssdt_count - 4*dropoffset;␊
1028␉␉␉struct acpi_2_rsdt *rsdt_copy = (struct acpi_2_rsdt *)AllocateKernelMemory(rsdt_mod->Length);␊
1029␉␉␉memcpy (rsdt_copy, rsdt_mod, rsdt_mod->Length);␊
1030␉␉␉free(rsdt_mod); rsdt_mod = rsdt_copy;␊
1031␉␉␉rsdp_mod->RsdtAddress=(uint32_t)rsdt_mod;␊
1032␉␉␉rsdt_entries_num=(rsdt_mod->Length-sizeof(struct acpi_2_rsdt))/4;␊
1033␉␉␉rsdt_entries=(uint32_t *)(rsdt_mod+1);␊
1034␊
1035␉␉␉// Mozodojo: Insert additional SSDTs into RSDT␊
1036␉␉␉if(ssdt_count>0)␊
1037␉␉␉{␊
1038␉␉␉␉int j;␊
1039␊
1040␉␉␉␉for (j=0; j<ssdt_count; j++)␊
1041␉␉␉␉␉rsdt_entries[i-dropoffset+j]=(uint32_t)new_ssdt[j];␊
1042␊
1043␉␉␉␉verbose("RSDT: Added %d SSDT table(s)\n", ssdt_count);␊
1044␊
1045␉␉␉}␊
1046␊
1047␉␉␉// Correct the checksum of RSDT␊
1048␉␉␉DBG("RSDT: Original checksum %d, ", rsdt_mod->Checksum);␊
1049␊
1050␉␉␉rsdt_mod->Checksum=0;␊
1051␉␉␉rsdt_mod->Checksum=256-checksum8(rsdt_mod,rsdt_mod->Length);␊
1052␊
1053␉␉␉DBG("New checksum %d at %x\n", rsdt_mod->Checksum,rsdt_mod);␊
1054␉␉}␊
1055␉␉else␊
1056␉␉{␊
1057␉␉␉rsdp_mod->RsdtAddress=0;␊
1058␉␉␉printf("RSDT not found or incorrect\n");␊
1059␉␉}␊
1060␊
1061␉␉if (version)␊
1062␉␉{␊
1063␉␉␉struct acpi_2_xsdt *xsdt, *xsdt_mod;␊
1064␊
1065␉␉␉// FIXME: handle 64-bit address correctly␊
1066␊
1067␉␉␉xsdt=(struct acpi_2_xsdt*) ((uint32_t)rsdp->XsdtAddress);␊
1068␉␉␉DBG("XSDT @%x;%x, Length=%d\n", (uint32_t)(rsdp->XsdtAddress>>32),(uint32_t)rsdp->XsdtAddress, xsdt->Length);␊
1069␊
1070␉␉␉if (xsdt && (uint64_t)rsdp->XsdtAddress<0xffffffff && xsdt->Length<0x10000)␊
1071␉␉␉{␊
1072␉␉␉␉uint64_t *xsdt_entries;␊
1073␉␉␉␉int xsdt_entries_num, i;␊
1074␉␉␉␉int dropoffset=0;␊
1075␊
1076␉␉␉␉// mozo: using malloc cos I didn't found how to free already allocated kernel memory␊
1077␉␉␉␉xsdt_mod=(struct acpi_2_xsdt*)malloc(xsdt->Length); ␊
1078␉␉␉␉memcpy(xsdt_mod, xsdt, xsdt->Length);␊
1079␊
1080␉␉␉␉rsdp_mod->XsdtAddress=(uint32_t)xsdt_mod;␊
1081␉␉␉␉xsdt_entries_num=(xsdt_mod->Length-sizeof(struct acpi_2_xsdt))/8;␊
1082␉␉␉␉xsdt_entries=(uint64_t *)(xsdt_mod+1);␊
1083␉␉␉␉for (i=0;i<xsdt_entries_num;i++)␊
1084␉␉␉␉{␊
1085␉␉␉␉␉char *table=(char *)((uint32_t)(xsdt_entries[i]));␊
1086␉␉␉␉␉if (!table)␊
1087␉␉␉␉␉{␊
1088␉␉␉␉␉␉continue;␊
1089␉␉␉␉␉}␊
1090␉␉␉␉␉xsdt_entries[i-dropoffset]=xsdt_entries[i];␊
1091␊
1092␉␉␉␉␉if (drop_ssdt && tableSign(table, "SSDT"))␊
1093␉␉␉␉␉{␊
1094␉␉␉␉␉␉dropoffset++;␊
1095␉␉␉␉␉␉continue;␊
1096␉␉␉␉␉}␊
1097␉␉␉␉␉if (tableSign(table, "DSDT"))␊
1098␉␉␉␉␉{␊
1099␉␉␉␉␉␉DBG("DSDT found\n");␊
1100␊
1101␉␉␉␉␉␉if (new_dsdt)␊
1102␉␉␉␉␉␉{␊
1103␉␉␉␉␉␉␉xsdt_entries[i-dropoffset]=(uint32_t)new_dsdt;␊
1104␉␉␉␉␉␉}␊
1105␊
1106␉␉␉␉␉␉DBG("TABLE %c%c%c%c@%x,",table[0],table[1],table[2],table[3],xsdt_entries[i]);␊
1107␉␉␉␉␉␉␊
1108␉␉␉␉␉␉continue;␊
1109␉␉␉␉␉}␊
1110␉␉␉␉␉if (tableSign(table, "FACP"))␊
1111␉␉␉␉␉{␊
1112␉␉␉␉␉␉struct acpi_2_fadt *fadt, *fadt_mod;␊
1113␉␉␉␉␉␉fadt=(struct acpi_2_fadt *)(uint32_t)xsdt_entries[i];␊
1114␊
1115␉␉␉␉␉␉DBG("FADT found @%x,%x, Length %d\n",(uint32_t)(xsdt_entries[i]>>32),fadt, ␊
1116␉␉␉␉␉␉␉fadt->Length);␊
1117␊
1118␉␉␉␉␉␉if (!fadt || (uint64_t)xsdt_entries[i] >= 0xffffffff || fadt->Length>0x10000)␊
1119␉␉␉␉␉␉{␊
1120␉␉␉␉␉␉␉verbose("FADT incorrect or after 4GB. Dropping XSDT\n");␊
1121␉␉␉␉␉␉␉goto drop_xsdt;␊
1122␉␉␉␉␉␉}␊
1123␊
1124␉␉␉␉␉␉fadt_mod = patch_fadt(fadt, new_dsdt);␊
1125␉␉␉␉␉␉xsdt_entries[i-dropoffset]=(uint32_t)fadt_mod;␊
1126␊
1127␉␉␉␉␉␉DBG("TABLE %c%c%c%c@%x,",table[0],table[1],table[2],table[3],xsdt_entries[i]);␊
1128␊
1129␉␉␉␉␉␉// Generate _CST SSDT␊
1130␉␉␉␉␉␉if (generate_cstates && (new_ssdt[ssdt_count] = generate_cst_ssdt(fadt_mod))) ␊
1131␉␉␉␉␉␉{␊
1132␉␉␉␉␉␉␉generate_cstates = false; // Generate SSDT only once!␊
1133␉␉␉␉␉␉␉ssdt_count++;␊
1134␉␉␉␉␉␉}␊
1135␊
1136␉␉␉␉␉␉// Generating _PSS SSDT␊
1137␉␉␉␉␉␉if (generate_pstates && (new_ssdt[ssdt_count] = generate_pss_ssdt((void*)fadt_mod->DSDT)))␊
1138␉␉␉␉␉␉{␊
1139␉␉␉␉␉␉␉generate_pstates = false; // Generate SSDT only once!␊
1140␉␉␉␉␉␉␉ssdt_count++;␊
1141␉␉␉␉␉␉}␊
1142␊
1143␉␉␉␉␉␉continue;␊
1144␉␉␉␉␉}␊
1145␊
1146␉␉␉␉␉DBG("TABLE %c%c%c%c@%x,",table[0],table[1],table[2],table[3],xsdt_entries[i]);␊
1147␊
1148␉␉␉␉}␊
1149␊
1150␉␉␉␉// Allocate xsdt in Kernel memory area␊
1151␉␉␉␉xsdt_mod->Length += 8*ssdt_count - 8*dropoffset;␊
1152␉␉␉␉struct acpi_2_xsdt *xsdt_copy = (struct acpi_2_xsdt *)AllocateKernelMemory(xsdt_mod->Length);␊
1153␉␉␉␉memcpy(xsdt_copy, xsdt_mod, xsdt_mod->Length);␊
1154␉␉␉␉free(xsdt_mod); xsdt_mod = xsdt_copy;␊
1155␉␉␉␉rsdp_mod->XsdtAddress=(uint32_t)xsdt_mod;␊
1156␉␉␉␉xsdt_entries_num=(xsdt_mod->Length-sizeof(struct acpi_2_xsdt))/8;␊
1157␉␉␉␉xsdt_entries=(uint64_t *)(xsdt_mod+1);␊
1158␊
1159␉␉␉␉// Mozodojo: Insert additional SSDTs into XSDT␊
1160␉␉␉␉if(ssdt_count>0)␊
1161␉␉␉␉{␊
1162␉␉␉␉␉int j;␊
1163␊
1164␉␉␉␉␉for (j=0; j<ssdt_count; j++)␊
1165␉␉␉␉␉␉xsdt_entries[i-dropoffset+j]=(uint32_t)new_ssdt[j];␊
1166␊
1167␉␉␉␉␉verbose("Added %d SSDT table(s) into XSDT\n", ssdt_count);␊
1168␊
1169␉␉␉␉}␊
1170␊
1171␉␉␉␉// Correct the checksum of XSDT␊
1172␉␉␉␉xsdt_mod->Checksum=0;␊
1173␉␉␉␉xsdt_mod->Checksum=256-checksum8(xsdt_mod,xsdt_mod->Length);␊
1174␉␉␉}␊
1175␉␉␉else␊
1176␉␉␉{␊
1177␉␉␉drop_xsdt:␊
1178␊
1179␉␉␉␉DBG("About to drop XSDT\n");␊
1180␊
1181␉␉␉␉/*FIXME: Now we just hope that if MacOS doesn't find XSDT it reverts to RSDT. ␊
1182␉␉␉␉ * A Better strategy would be to generate␊
1183␉␉␉␉ */␊
1184␊
1185␉␉␉␉rsdp_mod->XsdtAddress=0xffffffffffffffffLL;␊
1186␉␉␉␉verbose("XSDT not found or incorrect\n");␊
1187␉␉␉}␊
1188␉␉}␊
1189␊
1190␉␉// Correct the checksum of RSDP ␊
1191␊
1192␉␉DBG("RSDP: Original checksum %d, ", rsdp_mod->Checksum);␊
1193␊
1194␉␉rsdp_mod->Checksum=0;␊
1195␉␉rsdp_mod->Checksum=256-checksum8(rsdp_mod,20);␊
1196␊
1197␉␉DBG("New checksum %d\n", rsdp_mod->Checksum);␊
1198␊
1199␉␉if (version)␊
1200␉␉{␊
1201␉␉␉DBG("RSDP: Original extended checksum %d", rsdp_mod->ExtendedChecksum);␊
1202␊
1203␉␉␉rsdp_mod->ExtendedChecksum=0;␊
1204␉␉␉rsdp_mod->ExtendedChecksum=256-checksum8(rsdp_mod,rsdp_mod->Length);␊
1205␊
1206␉␉␉DBG("New extended checksum %d\n", rsdp_mod->ExtendedChecksum);␊
1207␊
1208␉␉}␊
1209␊
1210␉␉//verbose("Patched ACPI version %d DSDT\n", version+1);␊
1211␉␉if (version)␊
1212␉␉{␊
1213␉␉␉/* XXX aserebln why uint32 cast if pointer is uint64 ? */␊
1214␉␉␉acpi20_p = (uint32_t)rsdp_mod;␊
1215␉␉␉addConfigurationTable(&gEfiAcpi20TableGuid, &acpi20_p, "ACPI_20");␊
1216␉␉}␊
1217␉␉else␊
1218␉␉{␊
1219␉␉␉/* XXX aserebln why uint32 cast if pointer is uint64 ? */␊
1220␉␉␉acpi10_p = (uint32_t)rsdp_mod;␊
1221␉␉␉addConfigurationTable(&gEfiAcpiTableGuid, &acpi10_p, "ACPI");␊
1222␉␉}␊
1223␉}␊
1224#if DEBUG_ACPI␊
1225␉printf("Press a key to continue... (DEBUG_ACPI)\n");␊
1226␉getchar();␊
1227#endif␊
1228␉return 1;␊
1229}␊
1230

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