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Root/trunk/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␉␉snprintf(dirSpec, sizeof(dirSpec), "/Extra/%s", filename); ␊
108␉␉fd = open(dirSpec, 0);␊
109␉␉if (fd < 0)␊
110␉␉{␊
111␉␉␉snprintf(dirSpec, sizeof(dirSpec), "bt(0,0)/Extra/%s", filename);␊
112␉␉␉fd = open(dirSpec, 0);␊
113␉␉␉if (fd < 0) {␊
114␉␉␉␉// NOT FOUND:␊
115␉␉␉␉verbose("ACPI Table not found: %s\n", filename);␊
116␉␉␉␉*dirSpec = '\0';␊
117␉␉␉}␊
118␉␉}␊
119␉}␊
120␊
121␉if (outDirspec) *outDirspec = dirSpec; ␊
122␉return fd;␊
123}␊
124␊
125void *loadACPITable (const char * filename)␊
126{␊
127␉void *tableAddr;␊
128␉const char * dirspec=NULL;␊
129␊
130␉int fd = search_and_get_acpi_fd(filename, &dirspec);␊
131␊
132␉if (fd>=0)␊
133␉{␊
134␉␉tableAddr=(void*)AllocateKernelMemory(file_size (fd));␊
135␉␉if (tableAddr)␊
136␉␉{␊
137␉␉␉if (read (fd, tableAddr, file_size (fd))!=file_size (fd))␊
138␉␉␉{␊
139␉␉␉␉printf("Couldn't read table %s\n",dirspec);␊
140␉␉␉␉free (tableAddr);␊
141␉␉␉␉close (fd);␊
142␉␉␉␉return NULL;␊
143␉␉␉}␊
144␊
145␉␉␉DBG("Table %s read and stored at: %x\n", dirspec, tableAddr);␊
146␉␉␉close (fd);␊
147␉␉␉return tableAddr;␊
148␉␉}␊
149␉␉close (fd);␊
150␉␉printf("Couldn't allocate memory for table \n", dirspec);␊
151␉} ␊
152␉//printf("Couldn't find table %s\n", filename);␊
153␉return NULL;␊
154}␊
155␊
156uint8_t␉acpi_cpu_count = 0;␊
157char* acpi_cpu_name[32];␊
158uint32_t acpi_cpu_p_blk = 0;␊
159␊
160void get_acpi_cpu_names(unsigned char* dsdt, uint32_t length)␊
161{␊
162␉uint32_t i;␊
163␊
164␉DBG("start finding cpu names. length %d\n", length);␊
165␊
166␉for (i=0; i<length-7; i++) ␊
167␉{␊
168␉␉if (dsdt[i] == 0x5B && dsdt[i+1] == 0x83) // ProcessorOP␊
169␉␉{␊
170␉␉␉DBG("dsdt: %x%x\n", dsdt[i], dsdt[i+1]);␊
171␊
172␉␉␉uint32_t offset = i + 3 + (dsdt[i+2] >> 6);␊
173␊
174␉␉␉bool add_name = true;␊
175␊
176␉␉␉uint8_t j;␊
177␊
178␉␉␉for (j=0; j<4; j++) ␊
179␉␉␉{␊
180␉␉␉␉char c = dsdt[offset+j];␊
181␊
182␉␉␉␉if (!aml_isvalidchar(c))␊
183␉␉␉␉{␊
184␉␉␉␉␉add_name = false;␊
185␉␉␉␉␉verbose("Invalid character found in ProcessorOP 0x%x!\n", c);␊
186␉␉␉␉␉break;␊
187␉␉␉␉}␊
188␉␉␉}␊
189␊
190␉␉␉if (add_name)␊
191␉␉␉{␊
192␉␉␉␉acpi_cpu_name[acpi_cpu_count] = malloc(4);␊
193␉␉␉␉memcpy(acpi_cpu_name[acpi_cpu_count], dsdt+offset, 4);␊
194␉␉␉␉i = offset + 5;␊
195␊
196␉␉␉␉if (acpi_cpu_count == 0)␊
197␉␉␉␉␉acpi_cpu_p_blk = dsdt[i] | (dsdt[i+1] << 8);␊
198␊
199␉␉␉␉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]);␊
200␊
201␉␉␉␉if (++acpi_cpu_count == 32)␊
202␉␉␉␉{␊
203␉␉␉␉␉return;␊
204␉␉␉␉}␊
205␉␉␉}␊
206␉␉}␊
207␉}␊
208␊
209␉DBG("end finding cpu names: cpu names found: %d\n", acpi_cpu_count);␊
210}␊
211␊
212struct acpi_2_ssdt *generate_cst_ssdt(struct acpi_2_fadt* fadt)␊
213{␊
214␉char ssdt_header[] =␊
215␉{␊
216␉␉0x53, 0x53, 0x44, 0x54, 0xE7, 0x00, 0x00, 0x00, /* SSDT.... */␊
217␉␉0x01, 0x17, 0x50, 0x6D, 0x52, 0x65, 0x66, 0x41, /* ..PmRefA */␊
218␉␉0x43, 0x70, 0x75, 0x43, 0x73, 0x74, 0x00, 0x00, /* CpuCst.. */␊
219␉␉0x00, 0x10, 0x00, 0x00, 0x49, 0x4E, 0x54, 0x4C, /* ....INTL */␊
220␉␉0x31, 0x03, 0x10, 0x20␉␉␉␉␉␉␉/* 1.._␉␉*/␊
221␉};␊
222␉␊
223␉char resource_template_register_fixedhw[] =␊
224␉{␊
225␉␉0x11, 0x14, 0x0A, 0x11, 0x82, 0x0C, 0x00, 0x7F,␊
226␉␉0x01, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,␊
227␉␉0x00, 0x00, 0x01, 0x79, 0x00␊
228␉};␊
229␊
230␉char resource_template_register_systemio[] =␊
231␉{␊
232␉␉0x11, 0x14, 0x0A, 0x11, 0x82, 0x0C, 0x00, 0x01,␊
233␉␉0x08, 0x00, 0x00, 0x15, 0x04, 0x00, 0x00, 0x00,␊
234␉␉0x00, 0x00, 0x00, 0x79, 0x00,␊
235␉};␊
236␊
237␉if (Platform.CPU.Vendor != 0x756E6547) {␊
238␉␉verbose ("Not an Intel platform: C-States will not be generated !!!\n");␊
239␉␉return NULL;␊
240␉}␊
241␊
242␉if (fadt == NULL) {␊
243␉␉verbose ("FACP not exists: C-States will not be generated !!!\n");␊
244␉␉return NULL;␊
245␉}␊
246␊
247␉struct acpi_2_dsdt* dsdt = (void*)fadt->DSDT;␊
248␊
249␉if (dsdt == NULL) {␊
250␉␉verbose ("DSDT not found: C-States will not be generated !!!\n");␊
251␉␉return NULL;␊
252␉}␊
253␊
254␉if (acpi_cpu_count == 0)␊
255␉␉get_acpi_cpu_names((void*)dsdt, dsdt->Length);␊
256␊
257␉if (acpi_cpu_count > 0)␊
258␉{␊
259␉␉bool c2_enabled = false;␊
260␉␉bool c3_enabled = false;␊
261␉␉bool c4_enabled = false;␊
262␉␉bool cst_using_systemio = false;␊
263␊
264␉␉getBoolForKey(kEnableC2State, &c2_enabled, &bootInfo->chameleonConfig);␊
265␉␉getBoolForKey(kEnableC3State, &c3_enabled, &bootInfo->chameleonConfig);␊
266␉␉getBoolForKey(kEnableC4State, &c4_enabled, &bootInfo->chameleonConfig);␊
267␉␉getBoolForKey(kCSTUsingSystemIO, &cst_using_systemio, &bootInfo->chameleonConfig);␊
268␊
269␉␉c2_enabled = c2_enabled | (fadt->C2_Latency < 100);␊
270␉␉c3_enabled = c3_enabled | (fadt->C3_Latency < 1000);␊
271␊
272␉␉unsigned char cstates_count = 1 + (c2_enabled ? 1 : 0) + (c3_enabled ? 1 : 0);␊
273␊
274␉␉AML_CHUNK* root = aml_create_node(NULL);␊
275␉␉aml_add_buffer(root, ssdt_header, sizeof(ssdt_header)); // SSDT header␊
276␉␉AML_CHUNK* scop = aml_add_scope(root, "\\_PR_");␊
277␉␉AML_CHUNK* name = aml_add_name(scop, "CST_");␊
278␉␉AML_CHUNK* pack = aml_add_package(name);␊
279␉␉aml_add_byte(pack, cstates_count);␊
280␊
281␉␉AML_CHUNK* tmpl = aml_add_package(pack);␊
282␉␉if (cst_using_systemio)␊
283␉␉{␊
284␉␉␉// C1␊
285␉␉␉resource_template_register_fixedhw[8] = 0x00;␊
286␉␉␉resource_template_register_fixedhw[9] = 0x00;␊
287␉␉␉resource_template_register_fixedhw[18] = 0x00;␊
288␉␉␉aml_add_buffer(tmpl, resource_template_register_fixedhw, sizeof(resource_template_register_fixedhw));␊
289␉␉␉aml_add_byte(tmpl, 0x01);␉␉// C1␊
290␉␉␉aml_add_word(tmpl, 0x0001);␉␉// Latency␊
291␉␉␉aml_add_dword(tmpl, 0x000003e8);␉// Power␊
292␊
293␉␉␉uint8_t p_blk_lo, p_blk_hi;␊
294␊
295␉␉␉if (c2_enabled) // C2␊
296␉␉␉{␊
297␉␉␉␉p_blk_lo = acpi_cpu_p_blk + 4;␊
298␉␉␉␉p_blk_hi = (acpi_cpu_p_blk + 4) >> 8;␊
299␊
300␉␉␉␉tmpl = aml_add_package(pack);␊
301␉␉␉␉resource_template_register_systemio[11] = p_blk_lo; // C2␊
302␉␉␉␉resource_template_register_systemio[12] = p_blk_hi; // C2␊
303␉␉␉␉aml_add_buffer(tmpl, resource_template_register_systemio, sizeof(resource_template_register_systemio));␊
304␉␉␉␉aml_add_byte(tmpl, 0x02);␉␉// C2␊
305␉␉␉␉aml_add_word(tmpl, 0x0040);␉␉// Latency␊
306␉␉␉␉aml_add_dword(tmpl, 0x000001f4);␉// Power␊
307␉␉␉}␊
308␊
309␉␉␉if (c4_enabled) // C4␊
310␉␉␉{␊
311␉␉␉␉p_blk_lo = acpi_cpu_p_blk + 5;␊
312␉␉␉␉p_blk_hi = (acpi_cpu_p_blk + 5) >> 8;␊
313␊
314␉␉␉␉tmpl = aml_add_package(pack);␊
315␉␉␉␉resource_template_register_systemio[11] = p_blk_lo; // C4␊
316␉␉␉␉resource_template_register_systemio[12] = p_blk_hi; // C4␊
317␉␉␉␉aml_add_buffer(tmpl, resource_template_register_systemio, sizeof(resource_template_register_systemio));␊
318␉␉␉␉aml_add_byte(tmpl, 0x04);␉␉// C4␊
319␉␉␉␉aml_add_word(tmpl, 0x0080);␉␉// Latency␊
320␉␉␉␉aml_add_dword(tmpl, 0x000000C8);␉// Power␊
321␉␉␉}␊
322␉␉␉else if (c3_enabled) // C3␊
323␉␉␉{␊
324␉␉␉␉p_blk_lo = acpi_cpu_p_blk + 5;␊
325␉␉␉␉p_blk_hi = (acpi_cpu_p_blk + 5) >> 8;␊
326␊
327␉␉␉␉tmpl = aml_add_package(pack);␊
328␉␉␉␉resource_template_register_systemio[11] = p_blk_lo; // C3␊
329␉␉␉␉resource_template_register_systemio[12] = p_blk_hi; // C3␊
330␉␉␉␉aml_add_buffer(tmpl, resource_template_register_systemio, sizeof(resource_template_register_systemio));␊
331␉␉␉␉aml_add_byte(tmpl, 0x03);␉␉// C3␊
332␉␉␉␉aml_add_word(tmpl, 0x0060);␉␉// Latency␊
333␉␉␉␉aml_add_dword(tmpl, 0x0000015e);␉// Power␊
334␉␉␉}␊
335␉␉}␊
336␉␉else␊
337␉␉{␊
338␉␉␉// C1␊
339␉␉␉resource_template_register_fixedhw[11] = 0x00; // C1␊
340␉␉␉aml_add_buffer(tmpl, resource_template_register_fixedhw, sizeof(resource_template_register_fixedhw));␊
341␉␉␉aml_add_byte(tmpl, 0x01);␉␉// C1␊
342␉␉␉aml_add_word(tmpl, 0x0001);␉␉// Latency␊
343␉␉␉aml_add_dword(tmpl, 0x000003e8);␉// Power␊
344␊
345␉␉␉resource_template_register_fixedhw[18] = 0x03;␊
346␊
347␉␉␉if (c2_enabled) // C2␊
348␉␉␉{␊
349␉␉␉␉tmpl = aml_add_package(pack);␊
350␉␉␉␉resource_template_register_fixedhw[11] = 0x10; // C2␊
351␉␉␉␉aml_add_buffer(tmpl, resource_template_register_fixedhw, sizeof(resource_template_register_fixedhw));␊
352␉␉␉␉aml_add_byte(tmpl, 0x02);␉␉// C2␊
353␉␉␉␉aml_add_word(tmpl, 0x0040);␉␉// Latency␊
354␉␉␉␉aml_add_dword(tmpl, 0x000001f4);␉// Power␊
355␉␉␉}␊
356␊
357␉␉␉if (c4_enabled) // C4␊
358␉␉␉{␊
359␉␉␉␉tmpl = aml_add_package(pack);␊
360␉␉␉␉resource_template_register_fixedhw[11] = 0x30; // C4␊
361␉␉␉␉aml_add_buffer(tmpl, resource_template_register_fixedhw, sizeof(resource_template_register_fixedhw));␊
362␉␉␉␉aml_add_byte(tmpl, 0x04);␉␉// C4␊
363␉␉␉␉aml_add_word(tmpl, 0x0080);␉␉// Latency␊
364␉␉␉␉aml_add_dword(tmpl, 0x000000C8);␉// Power␊
365␉␉␉}␊
366␉␉␉else if (c3_enabled)␊
367␉␉␉{␊
368␉␉␉␉tmpl = aml_add_package(pack);␊
369␉␉␉␉resource_template_register_fixedhw[11] = 0x20; // C3␊
370␉␉␉␉aml_add_buffer(tmpl, resource_template_register_fixedhw, sizeof(resource_template_register_fixedhw));␊
371␉␉␉␉aml_add_byte(tmpl, 0x03);␉␉// C3␊
372␉␉␉␉aml_add_word(tmpl, 0x0060);␉␉// Latency␊
373␉␉␉␉aml_add_dword(tmpl, 0x0000015e);␉// Power␊
374␉␉␉}␊
375␉␉}␊
376␊
377␉␉// Aliaces␊
378␉␉int i;␊
379␉␉for (i = 0; i < acpi_cpu_count; i++) ␊
380␉␉{␊
381␉␉␉char name[9];␊
382␉␉␉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]);␊
383␊
384␉␉␉scop = aml_add_scope(root, name);␊
385␉␉␉␉aml_add_alias(scop, "CST_", "_CST");␊
386␉␉}␊
387␊
388␉␉aml_calculate_size(root);␊
389␊
390␉␉struct acpi_2_ssdt *ssdt = (struct acpi_2_ssdt *)AllocateKernelMemory(root->Size);␊
391␊
392␉␉aml_write_node(root, (void*)ssdt, 0);␊
393␊
394␉␉ssdt->Length = root->Size;␊
395␉␉ssdt->Checksum = 0;␊
396␉␉ssdt->Checksum = 256 - checksum8(ssdt, ssdt->Length);␊
397␊
398␉␉aml_destroy_node(root);␊
399␊
400␉␉// dumpPhysAddr("C-States SSDT content: ", ssdt, ssdt->Length);␊
401␉␉␊
402␉␉verbose ("SSDT with CPU C-States generated successfully\n");␊
403␊
404␉␉return ssdt;␊
405␉}␊
406␉else␊
407␉{␊
408␉␉verbose ("ACPI CPUs not found: C-States not generated !!!\n");␊
409␉}␊
410␊
411␉return NULL;␊
412}␊
413␊
414struct acpi_2_ssdt *generate_pss_ssdt(struct acpi_2_dsdt* dsdt)␊
415{␊
416␉char ssdt_header[] =␊
417␉{␊
418␉␉0x53, 0x53, 0x44, 0x54, 0x7E, 0x00, 0x00, 0x00, /* SSDT.... */␊
419␉␉0x01, 0x6A, 0x50, 0x6D, 0x52, 0x65, 0x66, 0x00, /* ..PmRef. */␊
420␉␉0x43, 0x70, 0x75, 0x50, 0x6D, 0x00, 0x00, 0x00, /* CpuPm... */␊
421␉␉0x00, 0x30, 0x00, 0x00, 0x49, 0x4E, 0x54, 0x4C, /* .0..INTL */␊
422␉␉0x31, 0x03, 0x10, 0x20,␉␉␉␉␉␉␉/* 1.._␉␉*/␊
423␉};␊
424␊
425␉if (Platform.CPU.Vendor != 0x756E6547) {␊
426␉␉verbose ("Not an Intel platform: P-States will not be generated !!!\n");␊
427␉␉return NULL;␊
428␉}␊
429␊
430␉if (!(Platform.CPU.Features & CPU_FEATURE_MSR)) {␊
431␉␉verbose ("Unsupported CPU: P-States will not be generated !!! No MSR support\n");␊
432␉␉return NULL;␊
433␉}␊
434␊
435␉if (acpi_cpu_count == 0)␊
436␉␉get_acpi_cpu_names((void*)dsdt, dsdt->Length);␊
437␊
438␉if (acpi_cpu_count > 0)␊
439␉{␊
440␉␉struct p_state initial, maximum, minimum, p_states[32];␊
441␉␉uint8_t p_states_count = 0;␊
442␊
443␉␉// Retrieving P-States, ported from code by superhai (c)␊
444␉␉switch (Platform.CPU.Family) {␊
445␉␉␉case 0x06:␊
446␉␉␉{␊
447␉␉␉␉switch (Platform.CPU.Model) ␊
448␉␉␉␉{␊
449␉␉␉␉␉case CPU_MODEL_DOTHAN:␉// Intel Pentium M␊
450␉␉␉␉␉case CPU_MODEL_YONAH:␉// Intel Mobile Core Solo, Duo␊
451␉␉␉␉␉case CPU_MODEL_MEROM:␉// Intel Mobile Core 2 Solo, Duo, Xeon 30xx, Xeon 51xx, Xeon X53xx, Xeon E53xx, Xeon X32xx␊
452␉␉␉␉␉case CPU_MODEL_PENRYN:␉// Intel Core 2 Solo, Duo, Quad, Extreme, Xeon X54xx, Xeon X33xx␊
453␉␉␉␉␉case CPU_MODEL_ATOM:␉// Intel Atom (45nm)␊
454␉␉␉␉␉{␊
455␉␉␉␉␉␉bool cpu_dynamic_fsb = false;␊
456␊
457␉␉␉␉␉␉if (rdmsr64(MSR_IA32_EXT_CONFIG) & (1 << 27)) ␊
458␉␉␉␉␉␉{␊
459␉␉␉␉␉␉␉wrmsr64(MSR_IA32_EXT_CONFIG, (rdmsr64(MSR_IA32_EXT_CONFIG) | (1 << 28))); ␊
460␉␉␉␉␉␉␉delay(1);␊
461␉␉␉␉␉␉␉cpu_dynamic_fsb = rdmsr64(MSR_IA32_EXT_CONFIG) & (1 << 28);␊
462␉␉␉␉␉␉}␊
463␊
464␉␉␉␉␉␉bool cpu_noninteger_bus_ratio = (rdmsr64(MSR_IA32_PERF_STATUS) & (1ULL << 46));␊
465␊
466␉␉␉␉␉␉initial.Control = rdmsr64(MSR_IA32_PERF_STATUS);␊
467␊
468␉␉␉␉␉␉maximum.Control = ((rdmsr64(MSR_IA32_PERF_STATUS) >> 32) & 0x1F3F) | (0x4000 * cpu_noninteger_bus_ratio);␊
469␉␉␉␉␉␉maximum.CID = ((maximum.FID & 0x1F) << 1) | cpu_noninteger_bus_ratio;␊
470␊
471␉␉␉␉␉␉minimum.FID = ((rdmsr64(MSR_IA32_PERF_STATUS) >> 24) & 0x1F) | (0x80 * cpu_dynamic_fsb);␊
472␉␉␉␉␉␉minimum.VID = ((rdmsr64(MSR_IA32_PERF_STATUS) >> 48) & 0x3F);␊
473␊
474␉␉␉␉␉␉if (minimum.FID == 0) ␊
475␉␉␉␉␉␉{␊
476␉␉␉␉␉␉␉uint64_t msr;␊
477␉␉␉␉␉␉␉uint8_t i;␊
478␉␉␉␉␉␉␉// Probe for lowest fid␊
479␉␉␉␉␉␉␉for (i = maximum.FID; i >= 0x6; i--)␊
480␉␉␉␉␉␉␉{␊
481␉␉␉␉␉␉␉␉msr = rdmsr64(MSR_IA32_PERF_CONTROL);␊
482␉␉␉␉␉␉␉␉wrmsr64(MSR_IA32_PERF_CONTROL, (msr & 0xFFFFFFFFFFFF0000ULL) | (i << 8) | minimum.VID);␊
483␉␉␉␉␉␉␉␉intel_waitforsts();␊
484␉␉␉␉␉␉␉␉minimum.FID = (rdmsr64(MSR_IA32_PERF_STATUS) >> 8) & 0x1F; ␊
485␉␉␉␉␉␉␉␉delay(1);␊
486␉␉␉␉␉␉␉}␊
487␊
488␉␉␉␉␉␉␉msr = rdmsr64(MSR_IA32_PERF_CONTROL);␊
489␉␉␉␉␉␉␉wrmsr64(MSR_IA32_PERF_CONTROL, (msr & 0xFFFFFFFFFFFF0000ULL) | (maximum.FID << 8) | maximum.VID);␊
490␉␉␉␉␉␉␉intel_waitforsts();␊
491␉␉␉␉␉␉}␊
492␊
493␉␉␉␉␉␉if (minimum.VID == maximum.VID) ␊
494␉␉␉␉␉␉{␊
495␉␉␉␉␉␉␉uint64_t msr;␊
496␉␉␉␉␉␉␉uint8_t i;␊
497␉␉␉␉␉␉␉// Probe for lowest vid␊
498␉␉␉␉␉␉␉for (i = maximum.VID; i > 0xA; i--) ␊
499␉␉␉␉␉␉␉{␊
500␉␉␉␉␉␉␉␉msr = rdmsr64(MSR_IA32_PERF_CONTROL);␊
501␉␉␉␉␉␉␉␉wrmsr64(MSR_IA32_PERF_CONTROL, (msr & 0xFFFFFFFFFFFF0000ULL) | (minimum.FID << 8) | i);␊
502␉␉␉␉␉␉␉␉intel_waitforsts();␊
503␉␉␉␉␉␉␉␉minimum.VID = rdmsr64(MSR_IA32_PERF_STATUS) & 0x3F; ␊
504␉␉␉␉␉␉␉␉delay(1);␊
505␉␉␉␉␉␉␉}␊
506␊
507␉␉␉␉␉␉␉msr = rdmsr64(MSR_IA32_PERF_CONTROL);␊
508␉␉␉␉␉␉␉wrmsr64(MSR_IA32_PERF_CONTROL, (msr & 0xFFFFFFFFFFFF0000ULL) | (maximum.FID << 8) | maximum.VID);␊
509␉␉␉␉␉␉␉intel_waitforsts();␊
510␉␉␉␉␉␉}␊
511␊
512␉␉␉␉␉␉minimum.CID = ((minimum.FID & 0x1F) << 1) >> cpu_dynamic_fsb;␊
513␊
514␉␉␉␉␉␉// Sanity check␊
515␉␉␉␉␉␉if (maximum.CID < minimum.CID) ␊
516␉␉␉␉␉␉{␊
517␉␉␉␉␉␉␉DBG("P-States: Insane FID values!");␊
518␉␉␉␉␉␉␉p_states_count = 0;␊
519␉␉␉␉␉␉}␊
520␉␉␉␉␉␉else␊
521␉␉␉␉␉␉{␊
522␉␉␉␉␉␉␉// Finalize P-States␊
523␉␉␉␉␉␉␉// Find how many P-States machine supports␊
524␉␉␉␉␉␉␉p_states_count = maximum.CID - minimum.CID + 1;␊
525␊
526␉␉␉␉␉␉␉if (p_states_count > 32) ␊
527␉␉␉␉␉␉␉␉p_states_count = 32;␊
528␊
529␉␉␉␉␉␉␉uint8_t vidstep;␊
530␉␉␉␉␉␉␉uint8_t i = 0, u, invalid = 0;␊
531␊
532␉␉␉␉␉␉␉vidstep = ((maximum.VID << 2) - (minimum.VID << 2)) / (p_states_count - 1);␊
533␊
534␉␉␉␉␉␉␉for (u = 0; u < p_states_count; u++) ␊
535␉␉␉␉␉␉␉{␊
536␉␉␉␉␉␉␉␉i = u - invalid;␊
537␊
538␉␉␉␉␉␉␉␉p_states[i].CID = maximum.CID - u;␊
539␉␉␉␉␉␉␉␉p_states[i].FID = (p_states[i].CID >> 1);␊
540␊
541␉␉␉␉␉␉␉␉if (p_states[i].FID < 0x6) ␊
542␉␉␉␉␉␉␉␉{␊
543␉␉␉␉␉␉␉␉␉if (cpu_dynamic_fsb) ␊
544␉␉␉␉␉␉␉␉␉␉p_states[i].FID = (p_states[i].FID << 1) | 0x80;␊
545␉␉␉␉␉␉␉␉}␊
546␉␉␉␉␉␉␉␉else if (cpu_noninteger_bus_ratio) ␊
547␉␉␉␉␉␉␉␉{␊
548␉␉␉␉␉␉␉␉␉p_states[i].FID = p_states[i].FID | (0x40 * (p_states[i].CID & 0x1));␊
549␉␉␉␉␉␉␉␉}␊
550␊
551␉␉␉␉␉␉␉␉if (i && p_states[i].FID == p_states[i-1].FID)␊
552␉␉␉␉␉␉␉␉␉invalid++;␊
553␊
554␉␉␉␉␉␉␉␉p_states[i].VID = ((maximum.VID << 2) - (vidstep * u)) >> 2;␊
555␊
556␉␉␉␉␉␉␉␉uint32_t multiplier = p_states[i].FID & 0x1f;␉␉// = 0x08␊
557␉␉␉␉␉␉␉␉bool half = p_states[i].FID & 0x40;␉␉␉␉␉// = 0x01␊
558␉␉␉␉␉␉␉␉bool dfsb = p_states[i].FID & 0x80;␉␉␉␉␉// = 0x00␊
559␉␉␉␉␉␉␉␉uint32_t fsb = Platform.CPU.FSBFrequency / 1000000; // = 400␊
560␉␉␉␉␉␉␉␉uint32_t halffsb = (fsb + 1) >> 1;␉␉␉␉␉// = 200␊
561␉␉␉␉␉␉␉␉uint32_t frequency = (multiplier * fsb);␉␉␉// = 3200␊
562␊
563␉␉␉␉␉␉␉␉p_states[i].Frequency = (frequency + (half * halffsb)) >> dfsb;␉// = 3200 + 200 = 3400␊
564␉␉␉␉␉␉␉}␊
565␊
566␉␉␉␉␉␉␉p_states_count -= invalid;␊
567␉␉␉␉␉␉}␊
568␊
569␉␉␉␉␉␉break;␊
570␉␉␉␉␉}␊
571␉␉␉␉␉case CPU_MODEL_FIELDS:␉␉// Intel Core i5, i7, Xeon X34xx LGA1156 (45nm)␊
572␉␉␉␉␉case CPU_MODEL_DALES:␉␉␊
573␉␉␉␉␉case CPU_MODEL_DALES_32NM:␉// Intel Core i3, i5 LGA1156 (32nm)␊
574␉␉␉␉␉case CPU_MODEL_NEHALEM:␉␉// Intel Core i7, Xeon W35xx, Xeon X55xx, Xeon E55xx LGA1366 (45nm)␊
575␉␉␉␉␉case CPU_MODEL_NEHALEM_EX:␉// Intel Xeon X75xx, Xeon X65xx, Xeon E75xx, Xeon E65xx␊
576␉␉␉␉␉case CPU_MODEL_WESTMERE:␉// Intel Core i7, Xeon X56xx, Xeon E56xx, Xeon W36xx LGA1366 (32nm) 6 Core␊
577␉␉␉␉␉case CPU_MODEL_WESTMERE_EX:␉// Intel Xeon E7␊
578␉␉␉␉␉case CPU_MODEL_SANDYBRIDGE:␉// Intel Core i3, i5, i7 LGA1155 (32nm)␊
579␉␉␉␉␉case CPU_MODEL_JAKETOWN:// Intel Core i7, Xeon E5 LGA2011 (32nm)␊
580␉␉␉␉␉case CPU_MODEL_IVYBRIDGE:␉// Intel Core i3, i5, i7 LGA1155 (22nm)␊
581␉␉␉␉␉case CPU_MODEL_HASWELL:␉//␊
582␉␉␉␉␉case CPU_MODEL_IVYBRIDGE_XEON: //␊
583␉␉␉␉␉//case CPU_MODEL_HASWELL_H:␉//␊
584␉␉␉␉␉case CPU_MODEL_HASWELL_MB:␉//␊
585␉␉␉␉␉case CPU_MODEL_HASWELL_ULT:␉//␊
586␉␉␉␉␉case CPU_MODEL_CRYSTALWELL:␉//␊
587␊
588␉␉␉␉␉{␊
589␉␉␉␉␉if ((Platform.CPU.Model == CPU_MODEL_SANDYBRIDGE) || (Platform.CPU.Model == CPU_MODEL_JAKETOWN) ||␊
590␉␉␉␉␉␉(Platform.CPU.Model == CPU_MODEL_IVYBRIDGE) || (Platform.CPU.Model == CPU_MODEL_HASWELL) ||␊
591␉␉␉␉␉␉(Platform.CPU.Model == CPU_MODEL_IVYBRIDGE_XEON) || (Platform.CPU.Model == CPU_MODEL_HASWELL_MB) ||␊
592␉␉␉␉␉␉(Platform.CPU.Model == CPU_MODEL_HASWELL_ULT) || (Platform.CPU.Model == CPU_MODEL_CRYSTALWELL))␊
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␉␉␉AML_CHUNK* root = aml_create_node(NULL);␊
640␉␉␉␉aml_add_buffer(root, ssdt_header, sizeof(ssdt_header)); // SSDT header␊
641␊
642␉␉␉␉␉AML_CHUNK* scop = aml_add_scope(root, "\\_PR_");␊
643␉␉␉␉␉␉AML_CHUNK* name = aml_add_name(scop, "PSS_");␊
644␉␉␉␉␉␉␉AML_CHUNK* pack = aml_add_package(name);␊
645␊
646␉␉␉␉␉␉␉␉for (i = 0; i < p_states_count; i++)␊
647␉␉␉␉␉␉␉␉{␊
648␉␉␉␉␉␉␉␉␉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␊
853␉const char *filename;␊
854␉char dirSpec[128];␊
855␉int len = 0;␊
856␊
857␉// always reset cpu count to 0 when injecting new acpi␊
858␉acpi_cpu_count = 0;␊
859␊
860␉/* Try using the file specified with the DSDT option */␊
861␉if (getValueForKey(kDSDT, &filename, &len, &bootInfo->chameleonConfig))␊
862␉{␊
863␉␉snprintf(dirSpec, sizeof(dirSpec), filename);␊
864␉}␊
865␉else␊
866␉{␊
867␉␉sprintf(dirSpec, "DSDT.aml");␊
868␉␉//verbose("dirSpec, DSDT.aml");␊
869␉}␊
870␊
871␉// Load replacement DSDT␊
872␉new_dsdt = loadACPITable(dirSpec);␊
873␉// Mozodojo: going to patch FACP and load SSDT's even if DSDT.aml is not present␊
874␉/*if (!new_dsdt)␊
875␉ {␊
876␉ return setupAcpiNoMod();␊
877␉ }*/␊
878␊
879␉// Mozodojo: Load additional SSDTs␊
880␉struct acpi_2_ssdt *new_ssdt[32]; // 30 + 2 additional tables for pss & cst␊
881␉int ssdt_count=0;␊
882␊
883␉// SSDT Options␊
884␉bool drop_ssdt=false, generate_pstates=false, generate_cstates=false;␊
885␊
886␉getBoolForKey(kDropSSDT, &drop_ssdt, &bootInfo->chameleonConfig);␊
887␉getBoolForKey(kGeneratePStates, &generate_pstates, &bootInfo->chameleonConfig);␊
888␉getBoolForKey(kGenerateCStates, &generate_cstates, &bootInfo->chameleonConfig);␊
889␊
890␉DBG("Generating P-States config: %d\n", generate_pstates);␊
891␉DBG("Generating C-States config: %d\n", generate_cstates);␊
892␊
893␉{␊
894␉␉int i;␊
895␊
896␉␉for (i = 0; i < 30; i++)␊
897␉␉{␊
898␉␉␉char filename[512];␊
899␊
900␉␉␉sprintf(filename, i > 0?"SSDT-%d.aml":"SSDT.aml", i);␊
901␊
902␉␉␉if ( (new_ssdt[ssdt_count] = loadACPITable(filename)) )␊
903␉␉␉{␊
904␉␉␉␉ssdt_count++;␊
905␉␉␉}␊
906␉␉␉else␊
907␉␉␉{␊
908␉␉␉␉break;␊
909␉␉␉}␊
910␉␉}␊
911␉}␊
912␊
913␉// Do the same procedure for both versions of ACPI␊
914␉for (version = 0; version < 2; version++) {␊
915␉␉struct acpi_2_rsdp *rsdp, *rsdp_mod;␊
916␉␉struct acpi_2_rsdt *rsdt, *rsdt_mod;␊
917␉␉int rsdplength;␊
918␊
919␉␉// Find original rsdp␊
920␉␉rsdp=(struct acpi_2_rsdp *)(version?getAddressOfAcpi20Table():getAddressOfAcpiTable());␊
921␉␉if (!rsdp)␊
922␉␉{␊
923␉␉␉DBG("No ACPI version %d found. Ignoring\n", version+1);␊
924␉␉␉if (version)␊
925␉␉␉{␊
926␉␉␉␉addConfigurationTable(&gEfiAcpi20TableGuid, NULL, "ACPI_20");␊
927␉␉␉}␊
928␉␉␉else␊
929␉␉␉{␊
930␉␉␉␉addConfigurationTable(&gEfiAcpiTableGuid, NULL, "ACPI");␊
931␉␉␉}␊
932␉␉␉continue;␊
933␉␉}␊
934␉␉rsdplength=version?rsdp->Length:20;␊
935␊
936␉␉DBG("RSDP version %d found @%x. Length=%d\n",version+1,rsdp,rsdplength);␊
937␊
938␉␉/* FIXME: no check that memory allocation succeeded ␊
939␉␉ * Copy and patch RSDP,RSDT, XSDT and FADT␊
940␉␉ * For more info see ACPI Specification pages 110 and following␊
941␉␉ */␊
942␊
943␉␉rsdp_mod=(struct acpi_2_rsdp *) AllocateKernelMemory(rsdplength);␊
944␉␉memcpy(rsdp_mod, rsdp, rsdplength);␊
945␊
946␉␉rsdt=(struct acpi_2_rsdt *)(rsdp->RsdtAddress);␊
947␊
948␉␉DBG("RSDT @%x, Length %d\n",rsdt, rsdt->Length);␊
949␉␉␊
950␉␉if (rsdt && (uint32_t)rsdt !=0xffffffff && rsdt->Length<0x10000)␊
951␉␉{␊
952␉␉␉uint32_t *rsdt_entries;␊
953␉␉␉int rsdt_entries_num;␊
954␉␉␉int dropoffset=0, i;␊
955␊
956␉␉␉// mozo: using malloc cos I didn't found how to free already allocated kernel memory␊
957␉␉␉rsdt_mod=(struct acpi_2_rsdt *)malloc(rsdt->Length); ␊
958␉␉␉memcpy (rsdt_mod, rsdt, rsdt->Length);␊
959␉␉␉rsdp_mod->RsdtAddress=(uint32_t)rsdt_mod;␊
960␉␉␉rsdt_entries_num=(rsdt_mod->Length-sizeof(struct acpi_2_rsdt))/4;␊
961␉␉␉rsdt_entries=(uint32_t *)(rsdt_mod+1);␊
962␉␉␉for (i=0;i<rsdt_entries_num;i++)␊
963␉␉␉{␊
964␉␉␉␉char *table=(char *)(rsdt_entries[i]);␊
965␉␉␉␉if (!table)␊
966␉␉␉␉{␊
967␉␉␉␉␉continue;␊
968␉␉␉␉}␊
969␊
970␉␉␉␉DBG("TABLE %c%c%c%c,",table[0],table[1],table[2],table[3]);␊
971␊
972␉␉␉␉rsdt_entries[i-dropoffset]=rsdt_entries[i];␊
973␊
974␉␉␉␉if (drop_ssdt && tableSign(table, "SSDT"))␊
975␉␉␉␉{␊
976␉␉␉␉␉verbose("OEM SSDT tables was dropped\n");␊
977␉␉␉␉␉dropoffset++;␊
978␉␉␉␉␉continue;␊
979␉␉␉␉}␊
980␉␉␉␉if (tableSign(table, "DSDT"))␊
981␉␉␉␉{␊
982␉␉␉␉␉DBG("DSDT found\n");␊
983␉␉␉␉␉verbose("Custom DSDT table was found\n");␊
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␉␉␉␉␉␉verbose("OEM SSDT tables was dropped\n");␊
1098␉␉␉␉␉␉dropoffset++;␊
1099␉␉␉␉␉␉continue;␊
1100␉␉␉␉␉}␊
1101␉␉␉␉␉if (tableSign(table, "DSDT"))␊
1102␉␉␉␉␉{␊
1103␉␉␉␉␉␉DBG("DSDT found\n");␊
1104␊
1105␉␉␉␉␉␉if (new_dsdt)␊
1106␉␉␉␉␉␉{␊
1107␉␉␉␉␉␉␉xsdt_entries[i-dropoffset]=(uint32_t)new_dsdt;␊
1108␉␉␉␉␉␉}␊
1109␊
1110␉␉␉␉␉␉DBG("TABLE %c%c%c%c@%x,",table[0],table[1],table[2],table[3],xsdt_entries[i]);␊
1111␉␉␉␉␉␉␊
1112␉␉␉␉␉␉continue;␊
1113␉␉␉␉␉}␊
1114␉␉␉␉␉if (tableSign(table, "FACP"))␊
1115␉␉␉␉␉{␊
1116␉␉␉␉␉␉struct acpi_2_fadt *fadt, *fadt_mod;␊
1117␉␉␉␉␉␉fadt=(struct acpi_2_fadt *)(uint32_t)xsdt_entries[i];␊
1118␊
1119␉␉␉␉␉␉DBG("FADT found @%x,%x, Length %d\n",(uint32_t)(xsdt_entries[i]>>32),fadt, ␊
1120␉␉␉␉␉␉␉fadt->Length);␊
1121␊
1122␉␉␉␉␉␉if (!fadt || (uint64_t)xsdt_entries[i] >= 0xffffffff || fadt->Length>0x10000)␊
1123␉␉␉␉␉␉{␊
1124␉␉␉␉␉␉␉verbose("FADT incorrect or after 4GB. Dropping XSDT\n");␊
1125␉␉␉␉␉␉␉goto drop_xsdt;␊
1126␉␉␉␉␉␉}␊
1127␊
1128␉␉␉␉␉␉fadt_mod = patch_fadt(fadt, new_dsdt);␊
1129␉␉␉␉␉␉xsdt_entries[i-dropoffset]=(uint32_t)fadt_mod;␊
1130␊
1131␉␉␉␉␉␉DBG("TABLE %c%c%c%c@%x,",table[0],table[1],table[2],table[3],xsdt_entries[i]);␊
1132␊
1133␉␉␉␉␉␉// Generate _CST SSDT␊
1134␉␉␉␉␉␉if (generate_cstates && (new_ssdt[ssdt_count] = generate_cst_ssdt(fadt_mod))) ␊
1135␉␉␉␉␉␉{␊
1136␉␉␉␉␉␉␉generate_cstates = false; // Generate SSDT only once!␊
1137␉␉␉␉␉␉␉ssdt_count++;␊
1138␉␉␉␉␉␉}␊
1139␊
1140␉␉␉␉␉␉// Generating _PSS SSDT␊
1141␉␉␉␉␉␉if (generate_pstates && (new_ssdt[ssdt_count] = generate_pss_ssdt((void*)fadt_mod->DSDT)))␊
1142␉␉␉␉␉␉{␊
1143␉␉␉␉␉␉␉generate_pstates = false; // Generate SSDT only once!␊
1144␉␉␉␉␉␉␉ssdt_count++;␊
1145␉␉␉␉␉␉}␊
1146␊
1147␉␉␉␉␉␉continue;␊
1148␉␉␉␉␉}␊
1149␊
1150␉␉␉␉␉DBG("TABLE %c%c%c%c@%x,",table[0],table[1],table[2],table[3],xsdt_entries[i]);␊
1151␊
1152␉␉␉␉}␊
1153␊
1154␉␉␉␉// Allocate xsdt in Kernel memory area␊
1155␉␉␉␉xsdt_mod->Length += 8*ssdt_count - 8*dropoffset;␊
1156␉␉␉␉struct acpi_2_xsdt *xsdt_copy = (struct acpi_2_xsdt *)AllocateKernelMemory(xsdt_mod->Length);␊
1157␉␉␉␉memcpy(xsdt_copy, xsdt_mod, xsdt_mod->Length);␊
1158␉␉␉␉free(xsdt_mod); xsdt_mod = xsdt_copy;␊
1159␉␉␉␉rsdp_mod->XsdtAddress=(uint32_t)xsdt_mod;␊
1160␉␉␉␉xsdt_entries_num=(xsdt_mod->Length-sizeof(struct acpi_2_xsdt))/8;␊
1161␉␉␉␉xsdt_entries=(uint64_t *)(xsdt_mod+1);␊
1162␊
1163␉␉␉␉// Mozodojo: Insert additional SSDTs into XSDT␊
1164␉␉␉␉if(ssdt_count > 0)␊
1165␉␉␉␉{␊
1166␉␉␉␉␉int j;␊
1167␊
1168␉␉␉␉␉for (j=0; j<ssdt_count; j++)␊
1169␉␉␉␉␉␉xsdt_entries[i-dropoffset+j]=(uint32_t)new_ssdt[j];␊
1170␊
1171␉␉␉␉␉verbose("Added %d SSDT table(s) into XSDT\n", ssdt_count);␊
1172␊
1173␉␉␉␉}␊
1174␊
1175␉␉␉␉// Correct the checksum of XSDT␊
1176␉␉␉␉xsdt_mod->Checksum=0;␊
1177␉␉␉␉xsdt_mod->Checksum=256-checksum8(xsdt_mod,xsdt_mod->Length);␊
1178␉␉␉}␊
1179␉␉␉else␊
1180␉␉␉{␊
1181␉␉␉drop_xsdt:␊
1182␊
1183␉␉␉␉DBG("About to drop XSDT\n");␊
1184␊
1185␉␉␉␉/*FIXME: Now we just hope that if MacOS doesn't find XSDT it reverts to RSDT. ␊
1186␉␉␉␉ * A Better strategy would be to generate␊
1187␉␉␉␉ */␊
1188␊
1189␉␉␉␉rsdp_mod->XsdtAddress=0xffffffffffffffffLL;␊
1190␉␉␉␉verbose("XSDT not found or incorrect\n");␊
1191␉␉␉}␊
1192␉␉}␊
1193␊
1194␉␉// Correct the checksum of RSDP ␊
1195␊
1196␉␉DBG("RSDP: Original checksum %d, ", rsdp_mod->Checksum);␊
1197␊
1198␉␉rsdp_mod->Checksum=0;␊
1199␉␉rsdp_mod->Checksum=256-checksum8(rsdp_mod,20);␊
1200␊
1201␉␉DBG("New checksum %d\n", rsdp_mod->Checksum);␊
1202␊
1203␉␉if (version)␊
1204␉␉{␊
1205␉␉␉DBG("RSDP: Original extended checksum %d", rsdp_mod->ExtendedChecksum);␊
1206␊
1207␉␉␉rsdp_mod->ExtendedChecksum=0;␊
1208␉␉␉rsdp_mod->ExtendedChecksum=256-checksum8(rsdp_mod,rsdp_mod->Length);␊
1209␊
1210␉␉␉DBG("New extended checksum %d\n", rsdp_mod->ExtendedChecksum);␊
1211␊
1212␉␉}␊
1213␊
1214␉␉//verbose("Patched ACPI version %d DSDT\n", version+1);␊
1215␉␉if (version)␊
1216␉␉{␊
1217␉␉␉/* XXX aserebln why uint32 cast if pointer is uint64 ? */␊
1218␉␉␉acpi20_p = (uint32_t)rsdp_mod;␊
1219␉␉␉addConfigurationTable(&gEfiAcpi20TableGuid, &acpi20_p, "ACPI_20");␊
1220␉␉}␊
1221␉␉else␊
1222␉␉{␊
1223␉␉␉/* XXX aserebln why uint32 cast if pointer is uint64 ? */␊
1224␉␉␉acpi10_p = (uint32_t)rsdp_mod;␊
1225␉␉␉addConfigurationTable(&gEfiAcpiTableGuid, &acpi10_p, "ACPI");␊
1226␉␉}␊
1227␉}␊
1228#if DEBUG_ACPI␊
1229␉printf("Press a key to continue... (DEBUG_ACPI)\n");␊
1230␉getchar();␊
1231#endif␊
1232␉return 1;␊
1233}␊
1234

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