Chameleon

Chameleon Svn Source Tree

Root/branches/chucko/i386/libsaio/acpi_patcher.c

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:*/␊
96/* WARNING: outDirspec string will be overwritten by subsequent calls! */␊
97int search_and_get_acpi_fd(const char * filename, const char ** outDirspec)␊
98{␊
99␉int fd = 0;␊
100␉static char dirSpec[512];␊
101␊
102␉// Try finding 'filename' in the usual places␊
103␉// Start searching any potential location for ACPI Table␊
104␉snprintf(dirSpec, sizeof(dirSpec), "%s", filename); ␊
105␉fd = open(dirSpec, 0);␊
106␉if (fd < 0)␊
107 {␉␊
108 snprintf(dirSpec, sizeof(dirSpec), "/Extra/%s", filename); ␊
109 fd = open(dirSpec, 0);␊
110 if (fd < 0)␊
111␉␉{␊
112 snprintf(dirSpec, sizeof(dirSpec), "bt(0,0)/Extra/%s", filename);␊
113 fd = open(dirSpec, 0);␊
114 if (fd < 0)␊
115␉␉␉{␊
116 // NOT FOUND:␊
117 verbose("ACPI Table not found: %s\n", filename);␊
118 *dirSpec = '\0';␊
119␉␉␉}␊
120␉␉}␊
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[11] = 0x00; // C1␊
342␉␉␉aml_add_buffer(tmpl, resource_template_register_fixedhw, sizeof(resource_template_register_fixedhw));␊
343␉␉␉aml_add_byte(tmpl, 0x01);␉␉␉// C1␊
344␉␉␉aml_add_word(tmpl, 0x0001);␉␉␉// Latency␊
345␉␉␉aml_add_dword(tmpl, 0x000003e8);␉// Power␊
346␊
347␉␉␉resource_template_register_fixedhw[18] = 0x03;␊
348␊
349␉␉␉if (c2_enabled) // C2␊
350␉␉␉{␊
351␉␉␉␉tmpl = aml_add_package(pack);␊
352␉␉␉␉resource_template_register_fixedhw[11] = 0x10; // C2␊
353␉␉␉␉aml_add_buffer(tmpl, resource_template_register_fixedhw, sizeof(resource_template_register_fixedhw));␊
354␉␉␉␉aml_add_byte(tmpl, 0x02);␉␉␉// C2␊
355␉␉␉␉aml_add_word(tmpl, 0x0040);␉␉␉// Latency␊
356␉␉␉␉aml_add_dword(tmpl, 0x000001f4);␉// Power␊
357␉␉␉}␊
358␊
359␉␉␉if (c4_enabled) // C4␊
360␉␉␉{␊
361␉␉␉␉tmpl = aml_add_package(pack);␊
362␉␉␉␉resource_template_register_fixedhw[11] = 0x30; // C4␊
363␉␉␉␉aml_add_buffer(tmpl, resource_template_register_fixedhw, sizeof(resource_template_register_fixedhw));␊
364␉␉␉␉aml_add_byte(tmpl, 0x04);␉␉␉// C4␊
365␉␉␉␉aml_add_word(tmpl, 0x0080);␉␉␉// Latency␊
366␉␉␉␉aml_add_dword(tmpl, 0x000000C8);␉// Power␊
367␉␉␉}␊
368␉␉␉else if (c3_enabled)␊
369␉␉␉{␊
370␉␉␉␉tmpl = aml_add_package(pack);␊
371␉␉␉␉resource_template_register_fixedhw[11] = 0x20; // C3␊
372␉␉␉␉aml_add_buffer(tmpl, resource_template_register_fixedhw, sizeof(resource_template_register_fixedhw));␊
373␉␉␉␉aml_add_byte(tmpl, 0x03);␉␉␉// C3␊
374␉␉␉␉aml_add_word(tmpl, 0x0060);␉␉␉// Latency␊
375␉␉␉␉aml_add_dword(tmpl, 0x0000015e);␉// Power␊
376␉␉␉}␊
377␉␉}␊
378␊
379␉␉// Aliaces␊
380␉␉int i;␊
381␉␉for (i = 0; i < acpi_cpu_count; i++) ␊
382␉␉{␊
383␉␉␉char name[9];␊
384␉␉␉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]);␊
385␊
386␉␉␉scop = aml_add_scope(root, name);␊
387␉␉␉␉aml_add_alias(scop, "CST_", "_CST");␊
388␉␉}␊
389␊
390␉␉aml_calculate_size(root);␊
391␊
392␉␉struct acpi_2_ssdt *ssdt = (struct acpi_2_ssdt *)AllocateKernelMemory(root->Size);␊
393␊
394␉␉aml_write_node(root, (void*)ssdt, 0);␊
395␊
396␉␉ssdt->Length = root->Size;␊
397␉␉ssdt->Checksum = 0;␊
398␉␉ssdt->Checksum = 256 - checksum8(ssdt, ssdt->Length);␊
399␊
400␉␉aml_destroy_node(root);␊
401␊
402␉␉// dumpPhysAddr("C-States SSDT content: ", ssdt, ssdt->Length);␊
403␉␉␊
404␉␉verbose ("SSDT with CPU C-States generated successfully\n");␊
405␊
406␉␉return ssdt;␊
407␉}␊
408␉else␊
409␉{␊
410␉␉verbose ("ACPI CPUs not found: C-States not generated !!!\n");␊
411␉}␊
412␊
413␉return NULL;␊
414}␊
415␊
416struct acpi_2_ssdt *generate_pss_ssdt(struct acpi_2_dsdt* dsdt)␊
417{␊
418␉char ssdt_header[] =␊
419␉{␊
420␉␉0x53, 0x53, 0x44, 0x54, 0x7E, 0x00, 0x00, 0x00, /* SSDT.... */␊
421␉␉0x01, 0x6A, 0x50, 0x6D, 0x52, 0x65, 0x66, 0x00, /* ..PmRef. */␊
422␉␉0x43, 0x70, 0x75, 0x50, 0x6D, 0x00, 0x00, 0x00, /* CpuPm... */␊
423␉␉0x00, 0x30, 0x00, 0x00, 0x49, 0x4E, 0x54, 0x4C, /* .0..INTL */␊
424␉␉0x31, 0x03, 0x10, 0x20,␉␉␉␉␉␉␉/* 1.._␉␉*/␊
425␉};␊
426␊
427␉if (Platform.CPU.Vendor != 0x756E6547) {␊
428␉␉verbose ("Not an Intel platform: P-States will not be generated !!!\n");␊
429␉␉return NULL;␊
430␉}␊
431␊
432␉if (!(Platform.CPU.Features & CPU_FEATURE_MSR)) {␊
433␉␉verbose ("Unsupported CPU: P-States will not be generated !!! No MSR support\n");␊
434␉␉return NULL;␊
435␉}␊
436␊
437␉if (acpi_cpu_count == 0)␊
438␉␉get_acpi_cpu_names((void*)dsdt, dsdt->Length);␊
439␊
440␉if (acpi_cpu_count > 0)␊
441␉{␊
442␉␉struct p_state initial, maximum, minimum, p_states[32];␊
443␉␉uint8_t p_states_count = 0;␊
444␊
445␉␉// Retrieving P-States, ported from code by superhai (c)␊
446␉␉switch (Platform.CPU.Family) {␊
447␉␉␉case 0x06:␊
448␉␉␉{␊
449␉␉␉␉switch (Platform.CPU.Model) ␊
450␉␉␉␉{␊
451␉␉␉␉␉case CPU_MODEL_DOTHAN:␉// Intel Pentium M␊
452␉␉␉␉␉case CPU_MODEL_YONAH:␉// Intel Mobile Core Solo, Duo␊
453␉␉␉␉␉case CPU_MODEL_MEROM:␉// Intel Mobile Core 2 Solo, Duo, Xeon 30xx, Xeon 51xx, Xeon X53xx, Xeon E53xx, Xeon X32xx␊
454␉␉␉␉␉case CPU_MODEL_PENRYN:␉// Intel Core 2 Solo, Duo, Quad, Extreme, Xeon X54xx, Xeon X33xx␊
455␉␉␉␉␉case CPU_MODEL_ATOM:␉// Intel Atom (45nm)␊
456␉␉␉␉␉{␊
457␉␉␉␉␉␉bool cpu_dynamic_fsb = false;␊
458␊
459␉␉␉␉␉␉if (rdmsr64(MSR_IA32_EXT_CONFIG) & (1 << 27)) ␊
460␉␉␉␉␉␉{␊
461␉␉␉␉␉␉␉wrmsr64(MSR_IA32_EXT_CONFIG, (rdmsr64(MSR_IA32_EXT_CONFIG) | (1 << 28))); ␊
462␉␉␉␉␉␉␉delay(1);␊
463␉␉␉␉␉␉␉cpu_dynamic_fsb = rdmsr64(MSR_IA32_EXT_CONFIG) & (1 << 28);␊
464␉␉␉␉␉␉}␊
465␊
466␉␉␉␉␉␉bool cpu_noninteger_bus_ratio = (rdmsr64(MSR_IA32_PERF_STATUS) & (1ULL << 46));␊
467␊
468␉␉␉␉␉␉initial.Control = rdmsr64(MSR_IA32_PERF_STATUS);␊
469␊
470␉␉␉␉␉␉maximum.Control = ((rdmsr64(MSR_IA32_PERF_STATUS) >> 32) & 0x1F3F) | (0x4000 * cpu_noninteger_bus_ratio);␊
471␉␉␉␉␉␉maximum.CID = ((maximum.FID & 0x1F) << 1) | cpu_noninteger_bus_ratio;␊
472␊
473␉␉␉␉␉␉minimum.FID = ((rdmsr64(MSR_IA32_PERF_STATUS) >> 24) & 0x1F) | (0x80 * cpu_dynamic_fsb);␊
474␉␉␉␉␉␉minimum.VID = ((rdmsr64(MSR_IA32_PERF_STATUS) >> 48) & 0x3F);␊
475␊
476␉␉␉␉␉␉if (minimum.FID == 0) ␊
477␉␉␉␉␉␉{␊
478␉␉␉␉␉␉␉uint64_t msr;␊
479␉␉␉␉␉␉␉uint8_t i;␊
480␉␉␉␉␉␉␉// Probe for lowest fid␊
481␉␉␉␉␉␉␉for (i = maximum.FID; i >= 0x6; i--)␊
482␉␉␉␉␉␉␉{␊
483␉␉␉␉␉␉␉␉msr = rdmsr64(MSR_IA32_PERF_CONTROL);␊
484␉␉␉␉␉␉␉␉wrmsr64(MSR_IA32_PERF_CONTROL, (msr & 0xFFFFFFFFFFFF0000ULL) | (i << 8) | minimum.VID);␊
485␉␉␉␉␉␉␉␉intel_waitforsts();␊
486␉␉␉␉␉␉␉␉minimum.FID = (rdmsr64(MSR_IA32_PERF_STATUS) >> 8) & 0x1F; ␊
487␉␉␉␉␉␉␉␉delay(1);␊
488␉␉␉␉␉␉␉}␊
489␊
490␉␉␉␉␉␉␉msr = rdmsr64(MSR_IA32_PERF_CONTROL);␊
491␉␉␉␉␉␉␉wrmsr64(MSR_IA32_PERF_CONTROL, (msr & 0xFFFFFFFFFFFF0000ULL) | (maximum.FID << 8) | maximum.VID);␊
492␉␉␉␉␉␉␉intel_waitforsts();␊
493␉␉␉␉␉␉}␊
494␊
495␉␉␉␉␉␉if (minimum.VID == maximum.VID) ␊
496␉␉␉␉␉␉{␊
497␉␉␉␉␉␉␉uint64_t msr;␊
498␉␉␉␉␉␉␉uint8_t i;␊
499␉␉␉␉␉␉␉// Probe for lowest vid␊
500␉␉␉␉␉␉␉for (i = maximum.VID; i > 0xA; i--) ␊
501␉␉␉␉␉␉␉{␊
502␉␉␉␉␉␉␉␉msr = rdmsr64(MSR_IA32_PERF_CONTROL);␊
503␉␉␉␉␉␉␉␉wrmsr64(MSR_IA32_PERF_CONTROL, (msr & 0xFFFFFFFFFFFF0000ULL) | (minimum.FID << 8) | i);␊
504␉␉␉␉␉␉␉␉intel_waitforsts();␊
505␉␉␉␉␉␉␉␉minimum.VID = rdmsr64(MSR_IA32_PERF_STATUS) & 0x3F; ␊
506␉␉␉␉␉␉␉␉delay(1);␊
507␉␉␉␉␉␉␉}␊
508␊
509␉␉␉␉␉␉␉msr = rdmsr64(MSR_IA32_PERF_CONTROL);␊
510␉␉␉␉␉␉␉wrmsr64(MSR_IA32_PERF_CONTROL, (msr & 0xFFFFFFFFFFFF0000ULL) | (maximum.FID << 8) | maximum.VID);␊
511␉␉␉␉␉␉␉intel_waitforsts();␊
512␉␉␉␉␉␉}␊
513␊
514␉␉␉␉␉␉minimum.CID = ((minimum.FID & 0x1F) << 1) >> cpu_dynamic_fsb;␊
515␊
516␉␉␉␉␉␉// Sanity check␊
517␉␉␉␉␉␉if (maximum.CID < minimum.CID) ␊
518␉␉␉␉␉␉{␊
519␉␉␉␉␉␉␉DBG("P-States: Insane FID values!");␊
520␉␉␉␉␉␉␉p_states_count = 0;␊
521␉␉␉␉␉␉}␊
522␉␉␉␉␉␉else␊
523␉␉␉␉␉␉{␊
524␉␉␉␉␉␉␉// Finalize P-States␊
525␉␉␉␉␉␉␉// Find how many P-States machine supports␊
526␉␉␉␉␉␉␉p_states_count = maximum.CID - minimum.CID + 1;␊
527␊
528␉␉␉␉␉␉␉if (p_states_count > 32) ␊
529␉␉␉␉␉␉␉␉p_states_count = 32;␊
530␊
531␉␉␉␉␉␉␉uint8_t vidstep;␊
532␉␉␉␉␉␉␉uint8_t i = 0, u, invalid = 0;␊
533␊
534␉␉␉␉␉␉␉vidstep = ((maximum.VID << 2) - (minimum.VID << 2)) / (p_states_count - 1);␊
535␊
536␉␉␉␉␉␉␉for (u = 0; u < p_states_count; u++) ␊
537␉␉␉␉␉␉␉{␊
538␉␉␉␉␉␉␉␉i = u - invalid;␊
539␊
540␉␉␉␉␉␉␉␉p_states[i].CID = maximum.CID - u;␊
541␉␉␉␉␉␉␉␉p_states[i].FID = (p_states[i].CID >> 1);␊
542␊
543␉␉␉␉␉␉␉␉if (p_states[i].FID < 0x6) ␊
544␉␉␉␉␉␉␉␉{␊
545␉␉␉␉␉␉␉␉␉if (cpu_dynamic_fsb) ␊
546␉␉␉␉␉␉␉␉␉␉p_states[i].FID = (p_states[i].FID << 1) | 0x80;␊
547␉␉␉␉␉␉␉␉}␊
548␉␉␉␉␉␉␉␉else if (cpu_noninteger_bus_ratio) ␊
549␉␉␉␉␉␉␉␉{␊
550␉␉␉␉␉␉␉␉␉p_states[i].FID = p_states[i].FID | (0x40 * (p_states[i].CID & 0x1));␊
551␉␉␉␉␉␉␉␉}␊
552␊
553␉␉␉␉␉␉␉␉if (i && p_states[i].FID == p_states[i-1].FID)␊
554␉␉␉␉␉␉␉␉␉invalid++;␊
555␊
556␉␉␉␉␉␉␉␉p_states[i].VID = ((maximum.VID << 2) - (vidstep * u)) >> 2;␊
557␊
558␉␉␉␉␉␉␉␉uint32_t multiplier = p_states[i].FID & 0x1f;␉␉// = 0x08␊
559␉␉␉␉␉␉␉␉bool half = p_states[i].FID & 0x40;␉␉␉␉␉// = 0x01␊
560␉␉␉␉␉␉␉␉bool dfsb = p_states[i].FID & 0x80;␉␉␉␉␉// = 0x00␊
561␉␉␉␉␉␉␉␉uint32_t fsb = Platform.CPU.FSBFrequency / 1000000; // = 400␊
562␉␉␉␉␉␉␉␉uint32_t halffsb = (fsb + 1) >> 1;␉␉␉␉␉// = 200␊
563␉␉␉␉␉␉␉␉uint32_t frequency = (multiplier * fsb);␉␉␉// = 3200␊
564␊
565␉␉␉␉␉␉␉␉p_states[i].Frequency = (frequency + (half * halffsb)) >> dfsb;␉// = 3200 + 200 = 3400␊
566␉␉␉␉␉␉␉}␊
567␊
568␉␉␉␉␉␉␉p_states_count -= invalid;␊
569␉␉␉␉␉␉}␊
570␊
571␉␉␉␉␉␉break;␊
572␉␉␉␉␉}␊
573␉␉␉␉␉case CPU_MODEL_FIELDS:␉␉// Intel Core i5, i7, Xeon X34xx LGA1156 (45nm)␊
574␉␉␉␉␉case CPU_MODEL_DALES:␉␉␊
575␉␉␉␉␉case CPU_MODEL_DALES_32NM:␉// Intel Core i3, i5 LGA1156 (32nm)␊
576␉␉␉␉␉case CPU_MODEL_NEHALEM:␉␉// Intel Core i7, Xeon W35xx, Xeon X55xx, Xeon E55xx LGA1366 (45nm)␊
577␉␉␉␉␉case CPU_MODEL_NEHALEM_EX:␉// Intel Xeon X75xx, Xeon X65xx, Xeon E75xx, Xeon E65xx␊
578␉␉␉␉␉case CPU_MODEL_WESTMERE:␉// Intel Core i7, Xeon X56xx, Xeon E56xx, Xeon W36xx LGA1366 (32nm) 6 Core␊
579␉␉␉␉␉case CPU_MODEL_WESTMERE_EX:␉// Intel Xeon E7␊
580␉␉␉␉␉case CPU_MODEL_SANDYBRIDGE:␉// Intel Core i3, i5, i7 LGA1155 (32nm)␊
581␉␉␉␉␉case CPU_MODEL_JAKETOWN:// Intel Core i7, Xeon E5 LGA2011 (32nm)␊
582␉␉␉␉␉case CPU_MODEL_IVYBRIDGE:␉// Intel Core i3, i5, i7 LGA1155 (22nm)␊
583␉␉␉␉␉case CPU_MODEL_HASWELL:␉//␊
584␉␉␉␉␉case CPU_MODEL_IVYBRIDGE_XEON: //␊
585␉␉␉␉␉//case CPU_MODEL_HASWELL_H:␉//␊
586␉␉␉␉␉case CPU_MODEL_HASWELL_MB:␉//␊
587␉␉␉␉␉case CPU_MODEL_HASWELL_ULT:␉//␊
588␉␉␉␉␉case CPU_MODEL_CRYSTALWELL:␉//␊
589␊
590␉␉␉␉␉{␊
591␉␉␉␉␉if ((Platform.CPU.Model == CPU_MODEL_SANDYBRIDGE) || (Platform.CPU.Model == CPU_MODEL_JAKETOWN) ||␊
592␉␉␉␉␉␉(Platform.CPU.Model == CPU_MODEL_IVYBRIDGE) || (Platform.CPU.Model == CPU_MODEL_HASWELL) ||␊
593␉␉␉␉␉␉(Platform.CPU.Model == CPU_MODEL_IVYBRIDGE_XEON) || (Platform.CPU.Model == CPU_MODEL_HASWELL_MB) ||␊
594␉␉␉␉␉␉(Platform.CPU.Model == CPU_MODEL_HASWELL_ULT) || (Platform.CPU.Model == CPU_MODEL_CRYSTALWELL))␊
595␉␉␉␉␉{␊
596␉␉␉␉␉␉maximum.Control = (rdmsr64(MSR_IA32_PERF_STATUS) >> 8) & 0xff;␊
597␉␉␉␉␉}␊
598␉␉␉␉␉else␊
599␉␉␉␉␉{␊
600␉␉␉␉␉␉maximum.Control = rdmsr64(MSR_IA32_PERF_STATUS) & 0xff;␊
601␉␉␉␉␉}␊
602␊
603␉␉␉␉␉minimum.Control = (rdmsr64(MSR_PLATFORM_INFO) >> 40) & 0xff;␊
604␊
605␉␉␉␉␉␉verbose("P-States: min 0x%x, max 0x%x\n", minimum.Control, maximum.Control);␉␉␉␊
606␊
607␉␉␉␉␉␉// Sanity check␊
608␉␉␉␉␉␉if (maximum.Control < minimum.Control) ␊
609␉␉␉␉␉␉{␊
610␉␉␉␉␉␉␉DBG("Insane control values!");␊
611␉␉␉␉␉␉␉p_states_count = 0;␊
612␉␉␉␉␉␉}␊
613␉␉␉␉␉␉else␊
614␉␉␉␉␉␉{␊
615␉␉␉␉␉␉␉uint8_t i;␊
616␉␉␉␉␉␉␉p_states_count = 0;␊
617␊
618␉␉␉␉␉␉␉for (i = maximum.Control; i >= minimum.Control; i--) ␊
619␉␉␉␉␉␉␉{␊
620␉␉␉␉␉␉␉␉p_states[p_states_count].Control = i;␊
621␉␉␉␉␉␉␉␉p_states[p_states_count].CID = p_states[p_states_count].Control << 1;␊
622␉␉␉␉␉␉␉␉p_states[p_states_count].Frequency = (Platform.CPU.FSBFrequency / 1000000) * i;␊
623␉␉␉␉␉␉␉␉p_states_count++;␊
624␉␉␉␉␉␉␉}␊
625␉␉␉␉␉␉}␊
626␉␉␉␉␉␉␊
627␉␉␉␉␉␉break;␊
628␉␉␉␉␉}␊
629␉␉␉␉␉default:␊
630␉␉␉␉␉␉verbose ("Unsupported CPU: P-States not generated !!! Unknown CPU Type\n");␊
631␉␉␉␉␉␉break;␊
632␉␉␉␉}␊
633␉␉␉}␊
634␉␉}␊
635␊
636␉␉// Generating SSDT␊
637␉␉if (p_states_count > 0)␊
638␉␉{␊
639␉␉␉int i;␊
640␊
641␉␉␉struct aml_chunk* root = aml_create_node(NULL);␊
642␉␉␉␉aml_add_buffer(root, ssdt_header, sizeof(ssdt_header)); // SSDT header␊
643␊
644␉␉␉␉␉struct aml_chunk* scop = aml_add_scope(root, "\\_PR_");␊
645␉␉␉␉␉␉struct aml_chunk* name = aml_add_name(scop, "PSS_");␊
646␉␉␉␉␉␉␉struct aml_chunk* pack = aml_add_package(name);␊
647␊
648␉␉␉␉␉␉␉␉for (i = 0; i < p_states_count; i++)␊
649␉␉␉␉␉␉␉␉{␊
650␉␉␉␉␉␉␉␉␉struct aml_chunk* pstt = aml_add_package(pack);␊
651␊
652␉␉␉␉␉␉␉␉␉aml_add_dword(pstt, p_states[i].Frequency);␊
653␉␉␉␉␉␉␉␉␉aml_add_dword(pstt, 0x00000000); // Power␊
654␉␉␉␉␉␉␉␉␉aml_add_dword(pstt, 0x0000000A); // Latency␊
655␉␉␉␉␉␉␉␉␉aml_add_dword(pstt, 0x0000000A); // Latency␊
656␉␉␉␉␉␉␉␉␉aml_add_dword(pstt, p_states[i].Control);␊
657␉␉␉␉␉␉␉␉␉aml_add_dword(pstt, i+1); // Status␊
658␉␉␉␉␉␉␉␉}␊
659␊
660␉␉␉// Add aliaces␊
661␉␉␉for (i = 0; i < acpi_cpu_count; i++) ␊
662␉␉␉{␊
663␉␉␉␉char name[9];␊
664␉␉␉␉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]);␊
665␊
666␉␉␉␉scop = aml_add_scope(root, name);␊
667␉␉␉␉aml_add_alias(scop, "PSS_", "_PSS");␊
668␉␉␉}␊
669␊
670␉␉␉aml_calculate_size(root);␊
671␊
672␉␉␉struct acpi_2_ssdt *ssdt = (struct acpi_2_ssdt *)AllocateKernelMemory(root->Size);␊
673␊
674␉␉␉aml_write_node(root, (void*)ssdt, 0);␊
675␊
676␉␉␉ssdt->Length = root->Size;␊
677␉␉␉ssdt->Checksum = 0;␊
678␉␉␉ssdt->Checksum = 256 - checksum8(ssdt, ssdt->Length);␊
679␊
680␉␉␉aml_destroy_node(root);␊
681␊
682␉␉␉//dumpPhysAddr("P-States SSDT content: ", ssdt, ssdt->Length);␊
683␊
684␉␉␉verbose ("SSDT with CPU P-States generated successfully\n");␊
685␊
686␉␉␉return ssdt;␊
687␉␉}␊
688␉}␊
689␉else ␊
690␉{␊
691␉␉verbose ("ACPI CPUs not found: P-States not generated !!!\n");␊
692␉}␊
693␊
694␉return NULL;␊
695}␊
696␊
697struct acpi_2_fadt *patch_fadt(struct acpi_2_fadt *fadt, struct acpi_2_dsdt *new_dsdt)␊
698{␊
699␉extern void setupSystemType(); ␊
700␊
701␉struct acpi_2_fadt *fadt_mod;␊
702␉bool fadt_rev2_needed = false;␊
703␉bool fix_restart;␊
704␉bool fix_restart_ps2;␊
705␉const char * value;␊
706␊
707␉// Restart Fix␊
708␉if (Platform.CPU.Vendor == 0x756E6547)␊
709␉{␉/* Intel */␊
710␉␉fix_restart = true;␊
711␉␉fix_restart_ps2 = false;␊
712␉␉if ( getBoolForKey(kPS2RestartFix, &fix_restart_ps2, &bootInfo->chameleonConfig) && fix_restart_ps2)␊
713␉␉{␊
714␉␉␉fix_restart = true;␊
715␉␉}␊
716␉␉else␊
717␉␉{␊
718␉␉␉getBoolForKey(kRestartFix, &fix_restart, &bootInfo->chameleonConfig);␊
719␉␉}␊
720␉}␊
721␉else␊
722␉{␊
723␉␉verbose ("Not an Intel platform: Restart Fix not applied !!!\n");␊
724␉␉fix_restart = false;␊
725␉}␊
726␊
727␉if (fix_restart)␊
728␉{␊
729␉␉fadt_rev2_needed = true;␊
730␉}␊
731␊
732␉// Allocate new fadt table␊
733␉if (fadt->Length < 0x84 && fadt_rev2_needed)␊
734␉{␊
735␉␉fadt_mod=(struct acpi_2_fadt *)AllocateKernelMemory(0x84);␊
736␉␉memcpy(fadt_mod, fadt, fadt->Length);␊
737␉␉fadt_mod->Length = 0x84;␊
738␉␉fadt_mod->Revision = 0x02; // FADT rev 2 (ACPI 1.0B MS extensions)␊
739␉}␊
740␉else␊
741␉{␊
742␉␉fadt_mod=(struct acpi_2_fadt *)AllocateKernelMemory(fadt->Length);␊
743␉␉memcpy(fadt_mod, fadt, fadt->Length);␊
744␉}␊
745␉// Determine system type / PM_Model␊
746␉if ( (value=getStringForKey(kSystemType, &bootInfo->chameleonConfig))!=NULL)␊
747␉{␊
748␉␉if (Platform.Type > 6) ␊
749␉␉{␊
750␉␉␉if(fadt_mod->PM_Profile<=6)␊
751␉␉␉{␊
752␉␉␉␉Platform.Type = fadt_mod->PM_Profile; // get the fadt if correct␊
753␉␉␉}␊
754␉␉␉else␊
755␉␉␉{␊
756␉␉␉␉Platform.Type = 1;␉␉/* Set a fixed value (Desktop) */␊
757␉␉␉}␊
758␉␉␉verbose("Error: system-type must be 0..6. Defaulting to %d !\n", Platform.Type);␊
759␉␉}␊
760␉␉else␊
761␉␉{␊
762␉␉␉Platform.Type = (unsigned char) strtoul(value, NULL, 10);␊
763␉␉}␊
764␉}␊
765␉// Set PM_Profile from System-type if only user wanted this value to be forced␊
766␉if (fadt_mod->PM_Profile != Platform.Type) ␊
767␉{␊
768␉␉if (value) ␊
769␉␉{␊
770␉␉␉// user has overriden the SystemType so take care of it in FACP␊
771␉␉␉verbose("FADT: changing PM_Profile from 0x%02x to 0x%02x\n", fadt_mod->PM_Profile, Platform.Type);␊
772␉␉␉fadt_mod->PM_Profile = Platform.Type;␊
773␉␉}␊
774␉␉else␊
775␉␉{␊
776␉␉␉// PM_Profile has a different value and no override has been set, so reflect the user value to ioregs␊
777␉␉␉Platform.Type = fadt_mod->PM_Profile <= 6 ? fadt_mod->PM_Profile : 1;␊
778␉␉}␊
779␉}␊
780␉// We now have to write the systemm-type in ioregs: we cannot do it before in setupDeviceTree()␊
781␉// because we need to take care of facp original content, if it is correct.␊
782␉setupSystemType();␊
783␊
784␉// Patch FADT to fix restart␊
785␉if (fix_restart)␊
786␉{␊
787␉␉if (fix_restart_ps2)␊
788␉␉{␊
789␉␉␉fadt_mod->Flags|= 0x400;␊
790␉␉␉fadt_mod->Reset_SpaceID␉␉= 0x01; // System I/O␊
791␉␉␉fadt_mod->Reset_BitWidth␉= 0x08; // 1 byte␊
792␉␉␉fadt_mod->Reset_BitOffset␉= 0x00; // Offset 0␊
793␉␉␉fadt_mod->Reset_AccessWidth␉= 0x01; // Byte access␊
794␉␉␉fadt_mod->Reset_Address␉␉= 0x64; // Address of the register␊
795␉␉␉fadt_mod->Reset_Value␉␉= 0xfe; // Value to write to reset the system␊
796␉␉␉msglog("FADT: PS2 Restart Fix applied!\n");␊
797␉␉}␊
798␉␉else␊
799␉␉{␊
800␉␉␉fadt_mod->Flags|= 0x400;␊
801␉␉␉fadt_mod->Reset_SpaceID␉␉= 0x01; // System I/O␊
802␉␉␉fadt_mod->Reset_BitWidth␉= 0x08; // 1 byte␊
803␉␉␉fadt_mod->Reset_BitOffset␉= 0x00; // Offset 0␊
804␉␉␉fadt_mod->Reset_AccessWidth␉= 0x01; // Byte access␊
805␉␉␉fadt_mod->Reset_Address␉␉= 0x0cf9; // Address of the register␊
806␉␉␉fadt_mod->Reset_Value␉␉= 0x06; // Value to write to reset the system␊
807␉␉␉verbose("FADT: ACPI Restart Fix applied!\n");␊
808␉␉}␊
809␊
810␉}␊
811␊
812␉// Patch DSDT Address if we have loaded DSDT.aml␊
813␉if(new_dsdt)␊
814␉{␊
815␉␉DBG("DSDT: Old @%x,%x, ",fadt_mod->DSDT,fadt_mod->X_DSDT);␊
816␊
817␉␉fadt_mod->DSDT=(uint32_t)new_dsdt;␊
818␉␉if ((uint32_t)(&(fadt_mod->X_DSDT))-(uint32_t)fadt_mod+8<=fadt_mod->Length)␊
819␉␉{␊
820␉␉␉fadt_mod->X_DSDT=(uint32_t)new_dsdt;␊
821␉␉}␊
822␊
823␉␉DBG("New @%x,%x\n",fadt_mod->DSDT,fadt_mod->X_DSDT);␊
824␊
825␉␉verbose("FADT: Using custom DSDT!\n");␊
826␉}␊
827␊
828␉// Correct the checksum␊
829␉fadt_mod->Checksum=0;␊
830␉fadt_mod->Checksum=256-checksum8(fadt_mod,fadt_mod->Length);␊
831␊
832␉return fadt_mod;␊
833}␊
834␊
835/* Setup ACPI without replacing DSDT. */␊
836int setupAcpiNoMod()␊
837{␊
838//␉addConfigurationTable(&gEfiAcpiTableGuid, getAddressOfAcpiTable(), "ACPI");␊
839//␉addConfigurationTable(&gEfiAcpi20TableGuid, getAddressOfAcpi20Table(), "ACPI_20");␊
840␉/* XXX aserebln why uint32 cast if pointer is uint64 ? */␊
841␉acpi10_p = (uint32_t)getAddressOfAcpiTable();␊
842␉acpi20_p = (uint32_t)getAddressOfAcpi20Table();␊
843␉addConfigurationTable(&gEfiAcpiTableGuid, &acpi10_p, "ACPI");␊
844␉if(acpi20_p) addConfigurationTable(&gEfiAcpi20TableGuid, &acpi20_p, "ACPI_20");␊
845␉return 1;␊
846}␊
847␊
848/* Setup ACPI. Replace DSDT if DSDT.aml is found */␊
849int setupAcpi(void)␊
850{␊
851␉int version;␊
852␉void *new_dsdt;␊
853␊
854␊
855␉const char *filename;␊
856␉char dirSpec[128];␊
857␉int len = 0;␊
858␊
859␉// always reset cpu count to 0 when injecting new acpi␊
860␉acpi_cpu_count = 0;␊
861␊
862␉/* Try using the file specified with the DSDT option */␊
863␉if (getValueForKey(kDSDT, &filename, &len, &bootInfo->chameleonConfig))␊
864␉{␊
865 snprintf(dirSpec, sizeof(dirSpec), filename);␊
866␉}␊
867␉else␊
868␉{␊
869␉␉sprintf(dirSpec, "DSDT.aml");␊
870␉}␊
871␊
872␉// Load replacement DSDT␊
873␉new_dsdt = loadACPITable(dirSpec);␊
874␉// Mozodojo: going to patch FACP and load SSDT's even if DSDT.aml is not present␊
875␉/*if (!new_dsdt)␊
876␉ {␊
877␉ return setupAcpiNoMod();␊
878␉ }*/␊
879␊
880␉// Mozodojo: Load additional SSDTs␊
881␉struct acpi_2_ssdt *new_ssdt[32]; // 30 + 2 additional tables for pss & cst␊
882␉int ssdt_count=0;␊
883␊
884␉// SSDT Options␊
885␉bool drop_ssdt=false, generate_pstates=false, generate_cstates=false;␊
886␊
887␉getBoolForKey(kDropSSDT, &drop_ssdt, &bootInfo->chameleonConfig);␊
888␉getBoolForKey(kGeneratePStates, &generate_pstates, &bootInfo->chameleonConfig);␊
889␉getBoolForKey(kGenerateCStates, &generate_cstates, &bootInfo->chameleonConfig);␊
890␊
891␉DBG("Generating P-States config: %d\n", generate_pstates);␊
892␉DBG("Generating C-States config: %d\n", generate_cstates);␊
893␊
894␉{␊
895␉␉int i;␊
896␊
897␉␉for (i=0; i<30; i++)␊
898␉␉{␊
899␉␉␉char filename[512];␊
900␊
901␉␉␉sprintf(filename, i>0?"SSDT-%d.aml":"SSDT.aml", i);␊
902␊
903␉␉␉if ( (new_ssdt[ssdt_count] = loadACPITable(filename)) )␊
904␉␉␉{␊
905␉␉␉␉ssdt_count++;␊
906␉␉␉}␊
907␉␉␉else␊
908␉␉␉{␊
909␉␉␉␉break;␊
910␉␉␉}␊
911␉␉}␊
912␉}␊
913␊
914␉// Do the same procedure for both versions of ACPI␊
915␉for (version=0; version<2; version++) {␊
916␉␉struct acpi_2_rsdp *rsdp, *rsdp_mod;␊
917␉␉struct acpi_2_rsdt *rsdt, *rsdt_mod;␊
918␉␉int rsdplength;␊
919␊
920␉␉// Find original rsdp␊
921␉␉rsdp=(struct acpi_2_rsdp *)(version?getAddressOfAcpi20Table():getAddressOfAcpiTable());␊
922␉␉if (!rsdp)␊
923␉␉{␊
924␉␉␉DBG("No ACPI version %d found. Ignoring\n", version+1);␊
925␉␉␉if (version)␊
926␉␉␉{␊
927␉␉␉␉addConfigurationTable(&gEfiAcpi20TableGuid, NULL, "ACPI_20");␊
928␉␉␉}␊
929␉␉␉else␊
930␉␉␉{␊
931␉␉␉␉addConfigurationTable(&gEfiAcpiTableGuid, NULL, "ACPI");␊
932␉␉␉}␊
933␉␉␉continue;␊
934␉␉}␊
935␉␉rsdplength=version?rsdp->Length:20;␊
936␊
937␉␉DBG("RSDP version %d found @%x. Length=%d\n",version+1,rsdp,rsdplength);␊
938␊
939␉␉/* FIXME: no check that memory allocation succeeded ␊
940␉␉ * Copy and patch RSDP,RSDT, XSDT and FADT␊
941␉␉ * For more info see ACPI Specification pages 110 and following␊
942␉␉ */␊
943␊
944␉␉rsdp_mod=(struct acpi_2_rsdp *) AllocateKernelMemory(rsdplength);␊
945␉␉memcpy(rsdp_mod, rsdp, rsdplength);␊
946␊
947␉␉rsdt=(struct acpi_2_rsdt *)(rsdp->RsdtAddress);␊
948␊
949␉␉DBG("RSDT @%x, Length %d\n",rsdt, rsdt->Length);␊
950␉␉␊
951␉␉if (rsdt && (uint32_t)rsdt !=0xffffffff && rsdt->Length<0x10000)␊
952␉␉{␊
953␉␉␉uint32_t *rsdt_entries;␊
954␉␉␉int rsdt_entries_num;␊
955␉␉␉int dropoffset=0, i;␊
956␊
957␉␉␉// mozo: using malloc cos I didn't found how to free already allocated kernel memory␊
958␉␉␉rsdt_mod=(struct acpi_2_rsdt *)malloc(rsdt->Length); ␊
959␉␉␉memcpy (rsdt_mod, rsdt, rsdt->Length);␊
960␉␉␉rsdp_mod->RsdtAddress=(uint32_t)rsdt_mod;␊
961␉␉␉rsdt_entries_num=(rsdt_mod->Length-sizeof(struct acpi_2_rsdt))/4;␊
962␉␉␉rsdt_entries=(uint32_t *)(rsdt_mod+1);␊
963␉␉␉for (i=0;i<rsdt_entries_num;i++)␊
964␉␉␉{␊
965␉␉␉␉char *table=(char *)(rsdt_entries[i]);␊
966␉␉␉␉if (!table)␊
967␉␉␉␉{␊
968␉␉␉␉␉continue;␊
969␉␉␉␉}␊
970␊
971␉␉␉␉DBG("TABLE %c%c%c%c,",table[0],table[1],table[2],table[3]);␊
972␊
973␉␉␉␉rsdt_entries[i-dropoffset]=rsdt_entries[i];␊
974␊
975␉␉␉␉if (drop_ssdt && tableSign(table, "SSDT"))␊
976␉␉␉␉{␊
977␉␉␉␉␉dropoffset++;␊
978␉␉␉␉␉continue;␊
979␉␉␉␉}␊
980␉␉␉␉if (tableSign(table, "DSDT"))␊
981␉␉␉␉{␊
982␉␉␉␉␉DBG("DSDT found\n");␊
983␊
984␉␉␉␉␉if(new_dsdt)␊
985␉␉␉␉␉{␊
986␉␉␉␉␉␉rsdt_entries[i-dropoffset]=(uint32_t)new_dsdt;␊
987␉␉␉␉␉}␊
988␊
989␉␉␉␉␉continue;␊
990␉␉␉␉}␊
991␊
992␉␉␉␉if (tableSign(table, "FACP"))␊
993␉␉␉␉{␊
994␉␉␉␉␉struct acpi_2_fadt *fadt, *fadt_mod;␊
995␉␉␉␉␉fadt=(struct acpi_2_fadt *)rsdt_entries[i];␊
996␊
997␉␉␉␉␉DBG("FADT found @%x, Length %d\n",fadt, fadt->Length);␊
998␊
999␉␉␉␉␉if (!fadt || (uint32_t)fadt == 0xffffffff || fadt->Length>0x10000)␊
1000␉␉␉␉␉{␊
1001␉␉␉␉␉␉printf("FADT incorrect. Not modified\n");␊
1002␉␉␉␉␉␉continue;␊
1003␉␉␉␉␉}␊
1004␉␉␉␉␉␊
1005␉␉␉␉␉fadt_mod = patch_fadt(fadt, new_dsdt);␊
1006␉␉␉␉␉rsdt_entries[i-dropoffset]=(uint32_t)fadt_mod;␊
1007␉␉␉␉␉␊
1008␉␉␉␉␉// Generate _CST SSDT␊
1009␉␉␉␉␉if (generate_cstates && (new_ssdt[ssdt_count] = generate_cst_ssdt(fadt_mod)))␊
1010␉␉␉␉␉{␊
1011␉␉␉␉␉␉DBG("C-States generated\n");␊
1012␉␉␉␉␉␉generate_cstates = false; // Generate SSDT only once!␊
1013␉␉␉␉␉␉ssdt_count++;␊
1014␉␉␉␉␉}␊
1015␊
1016␉␉␉␉␉// Generating _PSS SSDT␊
1017␉␉␉␉␉if (generate_pstates && (new_ssdt[ssdt_count] = generate_pss_ssdt((void*)fadt_mod->DSDT)))␊
1018␉␉␉␉␉{␊
1019␉␉␉␉␉␉DBG("P-States generated\n");␊
1020␉␉␉␉␉␉generate_pstates = false; // Generate SSDT only once!␊
1021␉␉␉␉␉␉ssdt_count++;␊
1022␉␉␉␉␉}␊
1023␊
1024␉␉␉␉␉continue;␊
1025␉␉␉␉}␊
1026␉␉␉}␊
1027␉␉␉DBG("\n");␊
1028␊
1029␉␉␉// Allocate rsdt in Kernel memory area␊
1030␉␉␉rsdt_mod->Length += 4*ssdt_count - 4*dropoffset;␊
1031␉␉␉struct acpi_2_rsdt *rsdt_copy = (struct acpi_2_rsdt *)AllocateKernelMemory(rsdt_mod->Length);␊
1032␉␉␉memcpy (rsdt_copy, rsdt_mod, rsdt_mod->Length);␊
1033␉␉␉free(rsdt_mod); rsdt_mod = rsdt_copy;␊
1034␉␉␉rsdp_mod->RsdtAddress=(uint32_t)rsdt_mod;␊
1035␉␉␉rsdt_entries_num=(rsdt_mod->Length-sizeof(struct acpi_2_rsdt))/4;␊
1036␉␉␉rsdt_entries=(uint32_t *)(rsdt_mod+1);␊
1037␊
1038␉␉␉// Mozodojo: Insert additional SSDTs into RSDT␊
1039␉␉␉if(ssdt_count>0)␊
1040␉␉␉{␊
1041␉␉␉␉int j;␊
1042␊
1043␉␉␉␉for (j=0; j<ssdt_count; j++)␊
1044␉␉␉␉␉rsdt_entries[i-dropoffset+j]=(uint32_t)new_ssdt[j];␊
1045␊
1046␉␉␉␉verbose("RSDT: Added %d SSDT table(s)\n", ssdt_count);␊
1047␊
1048␉␉␉}␊
1049␊
1050␉␉␉// Correct the checksum of RSDT␊
1051␉␉␉DBG("RSDT: Original checksum %d, ", rsdt_mod->Checksum);␊
1052␊
1053␉␉␉rsdt_mod->Checksum=0;␊
1054␉␉␉rsdt_mod->Checksum=256-checksum8(rsdt_mod,rsdt_mod->Length);␊
1055␊
1056␉␉␉DBG("New checksum %d at %x\n", rsdt_mod->Checksum,rsdt_mod);␊
1057␉␉}␊
1058␉␉else␊
1059␉␉{␊
1060␉␉␉rsdp_mod->RsdtAddress=0;␊
1061␉␉␉printf("RSDT not found or incorrect\n");␊
1062␉␉}␊
1063␊
1064␉␉if (version)␊
1065␉␉{␊
1066␉␉␉struct acpi_2_xsdt *xsdt, *xsdt_mod;␊
1067␊
1068␉␉␉// FIXME: handle 64-bit address correctly␊
1069␊
1070␉␉␉xsdt=(struct acpi_2_xsdt*) ((uint32_t)rsdp->XsdtAddress);␊
1071␉␉␉DBG("XSDT @%x;%x, Length=%d\n", (uint32_t)(rsdp->XsdtAddress>>32),(uint32_t)rsdp->XsdtAddress, xsdt->Length);␊
1072␊
1073␉␉␉if (xsdt && (uint64_t)rsdp->XsdtAddress<0xffffffff && xsdt->Length<0x10000)␊
1074␉␉␉{␊
1075␉␉␉␉uint64_t *xsdt_entries;␊
1076␉␉␉␉int xsdt_entries_num, i;␊
1077␉␉␉␉int dropoffset=0;␊
1078␊
1079␉␉␉␉// mozo: using malloc cos I didn't found how to free already allocated kernel memory␊
1080␉␉␉␉xsdt_mod=(struct acpi_2_xsdt*)malloc(xsdt->Length); ␊
1081␉␉␉␉memcpy(xsdt_mod, xsdt, xsdt->Length);␊
1082␊
1083␉␉␉␉rsdp_mod->XsdtAddress=(uint32_t)xsdt_mod;␊
1084␉␉␉␉xsdt_entries_num=(xsdt_mod->Length-sizeof(struct acpi_2_xsdt))/8;␊
1085␉␉␉␉xsdt_entries=(uint64_t *)(xsdt_mod+1);␊
1086␉␉␉␉for (i=0;i<xsdt_entries_num;i++)␊
1087␉␉␉␉{␊
1088␉␉␉␉␉char *table=(char *)((uint32_t)(xsdt_entries[i]));␊
1089␉␉␉␉␉if (!table)␊
1090␉␉␉␉␉{␊
1091␉␉␉␉␉␉continue;␊
1092␉␉␉␉␉}␊
1093␉␉␉␉␉xsdt_entries[i-dropoffset]=xsdt_entries[i];␊
1094␊
1095␉␉␉␉␉if (drop_ssdt && tableSign(table, "SSDT"))␊
1096␉␉␉␉␉{␊
1097␉␉␉␉␉␉dropoffset++;␊
1098␉␉␉␉␉␉continue;␊
1099␉␉␉␉␉}␊
1100␉␉␉␉␉if (tableSign(table, "DSDT"))␊
1101␉␉␉␉␉{␊
1102␉␉␉␉␉␉DBG("DSDT found\n");␊
1103␊
1104␉␉␉␉␉␉if (new_dsdt)␊
1105␉␉␉␉␉␉{␊
1106␉␉␉␉␉␉␉xsdt_entries[i-dropoffset]=(uint32_t)new_dsdt;␊
1107␉␉␉␉␉␉}␊
1108␊
1109␉␉␉␉␉␉DBG("TABLE %c%c%c%c@%x,",table[0],table[1],table[2],table[3],xsdt_entries[i]);␊
1110␉␉␉␉␉␉␊
1111␉␉␉␉␉␉continue;␊
1112␉␉␉␉␉}␊
1113␉␉␉␉␉if (tableSign(table, "FACP"))␊
1114␉␉␉␉␉{␊
1115␉␉␉␉␉␉struct acpi_2_fadt *fadt, *fadt_mod;␊
1116␉␉␉␉␉␉fadt=(struct acpi_2_fadt *)(uint32_t)xsdt_entries[i];␊
1117␊
1118␉␉␉␉␉␉DBG("FADT found @%x,%x, Length %d\n",(uint32_t)(xsdt_entries[i]>>32),fadt, ␊
1119␉␉␉␉␉␉␉fadt->Length);␊
1120␊
1121␉␉␉␉␉␉if (!fadt || (uint64_t)xsdt_entries[i] >= 0xffffffff || fadt->Length>0x10000)␊
1122␉␉␉␉␉␉{␊
1123␉␉␉␉␉␉␉verbose("FADT incorrect or after 4GB. Dropping XSDT\n");␊
1124␉␉␉␉␉␉␉goto drop_xsdt;␊
1125␉␉␉␉␉␉}␊
1126␊
1127␉␉␉␉␉␉fadt_mod = patch_fadt(fadt, new_dsdt);␊
1128␉␉␉␉␉␉xsdt_entries[i-dropoffset]=(uint32_t)fadt_mod;␊
1129␊
1130␉␉␉␉␉␉DBG("TABLE %c%c%c%c@%x,",table[0],table[1],table[2],table[3],xsdt_entries[i]);␊
1131␊
1132␉␉␉␉␉␉// Generate _CST SSDT␊
1133␉␉␉␉␉␉if (generate_cstates && (new_ssdt[ssdt_count] = generate_cst_ssdt(fadt_mod))) ␊
1134␉␉␉␉␉␉{␊
1135␉␉␉␉␉␉␉generate_cstates = false; // Generate SSDT only once!␊
1136␉␉␉␉␉␉␉ssdt_count++;␊
1137␉␉␉␉␉␉}␊
1138␊
1139␉␉␉␉␉␉// Generating _PSS SSDT␊
1140␉␉␉␉␉␉if (generate_pstates && (new_ssdt[ssdt_count] = generate_pss_ssdt((void*)fadt_mod->DSDT)))␊
1141␉␉␉␉␉␉{␊
1142␉␉␉␉␉␉␉generate_pstates = false; // Generate SSDT only once!␊
1143␉␉␉␉␉␉␉ssdt_count++;␊
1144␉␉␉␉␉␉}␊
1145␊
1146␉␉␉␉␉␉continue;␊
1147␉␉␉␉␉}␊
1148␊
1149␉␉␉␉␉DBG("TABLE %c%c%c%c@%x,",table[0],table[1],table[2],table[3],xsdt_entries[i]);␊
1150␊
1151␉␉␉␉}␊
1152␊
1153␉␉␉␉// Allocate xsdt in Kernel memory area␊
1154␉␉␉␉xsdt_mod->Length += 8*ssdt_count - 8*dropoffset;␊
1155␉␉␉␉struct acpi_2_xsdt *xsdt_copy = (struct acpi_2_xsdt *)AllocateKernelMemory(xsdt_mod->Length);␊
1156␉␉␉␉memcpy(xsdt_copy, xsdt_mod, xsdt_mod->Length);␊
1157␉␉␉␉free(xsdt_mod); xsdt_mod = xsdt_copy;␊
1158␉␉␉␉rsdp_mod->XsdtAddress=(uint32_t)xsdt_mod;␊
1159␉␉␉␉xsdt_entries_num=(xsdt_mod->Length-sizeof(struct acpi_2_xsdt))/8;␊
1160␉␉␉␉xsdt_entries=(uint64_t *)(xsdt_mod+1);␊
1161␊
1162␉␉␉␉// Mozodojo: Insert additional SSDTs into XSDT␊
1163␉␉␉␉if(ssdt_count>0)␊
1164␉␉␉␉{␊
1165␉␉␉␉␉int j;␊
1166␊
1167␉␉␉␉␉for (j=0; j<ssdt_count; j++)␊
1168␉␉␉␉␉␉xsdt_entries[i-dropoffset+j]=(uint32_t)new_ssdt[j];␊
1169␊
1170␉␉␉␉␉verbose("Added %d SSDT table(s) into XSDT\n", ssdt_count);␊
1171␊
1172␉␉␉␉}␊
1173␊
1174␉␉␉␉// Correct the checksum of XSDT␊
1175␉␉␉␉xsdt_mod->Checksum=0;␊
1176␉␉␉␉xsdt_mod->Checksum=256-checksum8(xsdt_mod,xsdt_mod->Length);␊
1177␉␉␉}␊
1178␉␉␉else␊
1179␉␉␉{␊
1180␉␉␉drop_xsdt:␊
1181␊
1182␉␉␉␉DBG("About to drop XSDT\n");␊
1183␊
1184␉␉␉␉/*FIXME: Now we just hope that if MacOS doesn't find XSDT it reverts to RSDT. ␊
1185␉␉␉␉ * A Better strategy would be to generate␊
1186␉␉␉␉ */␊
1187␊
1188␉␉␉␉rsdp_mod->XsdtAddress=0xffffffffffffffffLL;␊
1189␉␉␉␉verbose("XSDT not found or incorrect\n");␊
1190␉␉␉}␊
1191␉␉}␊
1192␊
1193␉␉// Correct the checksum of RSDP ␊
1194␊
1195␉␉DBG("RSDP: Original checksum %d, ", rsdp_mod->Checksum);␊
1196␊
1197␉␉rsdp_mod->Checksum=0;␊
1198␉␉rsdp_mod->Checksum=256-checksum8(rsdp_mod,20);␊
1199␊
1200␉␉DBG("New checksum %d\n", rsdp_mod->Checksum);␊
1201␊
1202␉␉if (version)␊
1203␉␉{␊
1204␉␉␉DBG("RSDP: Original extended checksum %d", rsdp_mod->ExtendedChecksum);␊
1205␊
1206␉␉␉rsdp_mod->ExtendedChecksum=0;␊
1207␉␉␉rsdp_mod->ExtendedChecksum=256-checksum8(rsdp_mod,rsdp_mod->Length);␊
1208␊
1209␉␉␉DBG("New extended checksum %d\n", rsdp_mod->ExtendedChecksum);␊
1210␊
1211␉␉}␊
1212␊
1213␉␉//verbose("Patched ACPI version %d DSDT\n", version+1);␊
1214␉␉if (version)␊
1215␉␉{␊
1216␉␉␉/* XXX aserebln why uint32 cast if pointer is uint64 ? */␊
1217␉␉␉acpi20_p = (uint32_t)rsdp_mod;␊
1218␉␉␉addConfigurationTable(&gEfiAcpi20TableGuid, &acpi20_p, "ACPI_20");␊
1219␉␉}␊
1220␉␉else␊
1221␉␉{␊
1222␉␉␉/* XXX aserebln why uint32 cast if pointer is uint64 ? */␊
1223␉␉␉acpi10_p = (uint32_t)rsdp_mod;␊
1224␉␉␉addConfigurationTable(&gEfiAcpiTableGuid, &acpi10_p, "ACPI");␊
1225␉␉}␊
1226␉}␊
1227#if DEBUG_ACPI␊
1228␉printf("Press a key to continue... (DEBUG_ACPI)\n");␊
1229␉getchar();␊
1230#endif␊
1231␉return 1;␊
1232}␊
1233

Archive Download this file

Revision: 2297