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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:*/␊
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␉␉␉if (fd < 0)␊
114␉␉␉{␊
115␉␉␉␉// NOT FOUND:␊
116␉␉␉␉verbose("ACPI Table not found: %s\n", filename);␊
117␉␉␉␉*dirSpec = '\0';␊
118␉␉␉}␊
119␉␉}␊
120␉}␊
121␊
122// Bungo␊
123/*** Moved above␊
124␉if (fd < 0)␊
125␉{␊
126␉␉// NOT FOUND:␊
127␉␉verbose("ACPI Table not found: %s\n", filename);␊
128␉␉*dirSpec = '\0';␊
129␉}␊
130***/␊
131␉if (outDirspec) *outDirspec = dirSpec; ␊
132␉return fd;␊
133}␊
134␊
135void *loadACPITable (const char * filename)␊
136{␊
137␉void *tableAddr;␊
138␉const char * dirspec=NULL;␊
139␊
140␉int fd = search_and_get_acpi_fd(filename, &dirspec);␊
141␊
142␉if (fd>=0)␊
143␉{␊
144␉␉tableAddr=(void*)AllocateKernelMemory(file_size (fd));␊
145␉␉if (tableAddr)␊
146␉␉{␊
147␉␉␉if (read (fd, tableAddr, file_size (fd))!=file_size (fd))␊
148␉␉␉{␊
149␉␉␉␉printf("Couldn't read table %s\n",dirspec);␊
150␉␉␉␉free (tableAddr);␊
151␉␉␉␉close (fd);␊
152␉␉␉␉return NULL;␊
153␉␉␉}␊
154␊
155␉␉␉DBG("Table %s read and stored at: %x\n", dirspec, tableAddr);␊
156␉␉␉close (fd);␊
157␉␉␉return tableAddr;␊
158␉␉}␊
159␉␉close (fd);␊
160␉␉printf("Couldn't allocate memory for table \n", dirspec);␊
161␉} ␊
162␉//printf("Couldn't find table %s\n", filename);␊
163␉return NULL;␊
164}␊
165␊
166uint8_t␉acpi_cpu_count = 0;␊
167char* acpi_cpu_name[32];␊
168uint32_t acpi_cpu_p_blk = 0;␊
169␊
170void get_acpi_cpu_names(unsigned char* dsdt, uint32_t length)␊
171{␊
172␉uint32_t i;␊
173␊
174␉DBG("start finding cpu names. length %d\n", length);␊
175␊
176␉for (i=0; i<length-7; i++) ␊
177␉{␊
178␉␉if (dsdt[i] == 0x5B && dsdt[i+1] == 0x83) // ProcessorOP␊
179␉␉{␊
180␉␉␉DBG("dsdt: %x%x\n", dsdt[i], dsdt[i+1]);␊
181␊
182␉␉␉uint32_t offset = i + 3 + (dsdt[i+2] >> 6);␊
183␊
184␉␉␉bool add_name = true;␊
185␊
186␉␉␉uint8_t j;␊
187␊
188␉␉␉for (j=0; j<4; j++) ␊
189␉␉␉{␊
190␉␉␉␉char c = dsdt[offset+j];␊
191␊
192␉␉␉␉if (!aml_isvalidchar(c))␊
193␉␉␉␉{␊
194␉␉␉␉␉add_name = false;␊
195␉␉␉␉␉verbose("Invalid character found in ProcessorOP 0x%x!\n", c);␊
196␉␉␉␉␉break;␊
197␉␉␉␉}␊
198␉␉␉}␊
199␊
200␉␉␉if (add_name)␊
201␉␉␉{␊
202␉␉␉␉acpi_cpu_name[acpi_cpu_count] = malloc(4);␊
203␉␉␉␉memcpy(acpi_cpu_name[acpi_cpu_count], dsdt+offset, 4);␊
204␉␉␉␉i = offset + 5;␊
205␊
206␉␉␉␉if (acpi_cpu_count == 0)␊
207␉␉␉␉␉acpi_cpu_p_blk = dsdt[i] | (dsdt[i+1] << 8);␊
208␊
209␉␉␉␉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]);␊
210␊
211␉␉␉␉if (++acpi_cpu_count == 32)␊
212␉␉␉␉{␊
213␉␉␉␉␉return;␊
214␉␉␉␉}␊
215␉␉␉}␊
216␉␉}␊
217␉}␊
218␊
219␉DBG("end finding cpu names: cpu names found: %d\n", acpi_cpu_count);␊
220}␊
221␊
222struct acpi_2_ssdt *generate_cst_ssdt(struct acpi_2_fadt* fadt)␊
223{␊
224␉char ssdt_header[] =␊
225␉{␊
226␉␉0x53, 0x53, 0x44, 0x54, 0xE7, 0x00, 0x00, 0x00, /* SSDT.... */␊
227␉␉0x01, 0x17, 0x50, 0x6D, 0x52, 0x65, 0x66, 0x41, /* ..PmRefA */␊
228␉␉0x43, 0x70, 0x75, 0x43, 0x73, 0x74, 0x00, 0x00, /* CpuCst.. */␊
229␉␉0x00, 0x10, 0x00, 0x00, 0x49, 0x4E, 0x54, 0x4C, /* ....INTL */␊
230␉␉0x31, 0x03, 0x10, 0x20␉␉␉␉␉␉␉/* 1.._␉␉*/␊
231␉};␊
232␉␊
233␉char resource_template_register_fixedhw[] =␊
234␉{␊
235␉␉0x11, 0x14, 0x0A, 0x11, 0x82, 0x0C, 0x00, 0x7F,␊
236␉␉0x01, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,␊
237␉␉0x00, 0x00, 0x01, 0x79, 0x00␊
238␉};␊
239␊
240␉char resource_template_register_systemio[] =␊
241␉{␊
242␉␉0x11, 0x14, 0x0A, 0x11, 0x82, 0x0C, 0x00, 0x01,␊
243␉␉0x08, 0x00, 0x00, 0x15, 0x04, 0x00, 0x00, 0x00,␊
244␉␉0x00, 0x00, 0x00, 0x79, 0x00,␊
245␉};␊
246␊
247␉if (Platform.CPU.Vendor != 0x756E6547) {␊
248␉␉verbose ("Not an Intel platform: C-States will not be generated !!!\n");␊
249␉␉return NULL;␊
250␉}␊
251␊
252␉if (fadt == NULL) {␊
253␉␉verbose ("FACP not exists: C-States will not be generated !!!\n");␊
254␉␉return NULL;␊
255␉}␊
256␊
257␉struct acpi_2_dsdt* dsdt = (void*)fadt->DSDT;␊
258␊
259␉if (dsdt == NULL) {␊
260␉␉verbose ("DSDT not found: C-States will not be generated !!!\n");␊
261␉␉return NULL;␊
262␉}␊
263␊
264␉if (acpi_cpu_count == 0)␊
265␉␉get_acpi_cpu_names((void*)dsdt, dsdt->Length);␊
266␊
267␉if (acpi_cpu_count > 0)␊
268␉{␊
269␉␉bool c2_enabled = false;␊
270␉␉bool c3_enabled = false;␊
271␉␉bool c4_enabled = false;␊
272␉␉bool cst_using_systemio = false;␊
273␊
274␉␉getBoolForKey(kEnableC2State, &c2_enabled, &bootInfo->chameleonConfig);␊
275␉␉getBoolForKey(kEnableC3State, &c3_enabled, &bootInfo->chameleonConfig);␊
276␉␉getBoolForKey(kEnableC4State, &c4_enabled, &bootInfo->chameleonConfig);␊
277␉␉getBoolForKey(kCSTUsingSystemIO, &cst_using_systemio, &bootInfo->chameleonConfig);␊
278␊
279␉␉c2_enabled = c2_enabled | (fadt->C2_Latency < 100);␊
280␉␉c3_enabled = c3_enabled | (fadt->C3_Latency < 1000);␊
281␊
282␉␉unsigned char cstates_count = 1 + (c2_enabled ? 1 : 0) + (c3_enabled ? 1 : 0);␊
283␊
284␉␉struct aml_chunk* root = aml_create_node(NULL);␊
285␉␉aml_add_buffer(root, ssdt_header, sizeof(ssdt_header)); // SSDT header␊
286␉␉struct aml_chunk* scop = aml_add_scope(root, "\\_PR_");␊
287␉␉struct aml_chunk* name = aml_add_name(scop, "CST_");␊
288␉␉struct aml_chunk* pack = aml_add_package(name);␊
289␉␉aml_add_byte(pack, cstates_count);␊
290␊
291␉␉struct aml_chunk* tmpl = aml_add_package(pack);␊
292␉␉if (cst_using_systemio)␊
293␉␉{␊
294␉␉␉// C1␊
295␉␉␉resource_template_register_fixedhw[8] = 0x00;␊
296␉␉␉resource_template_register_fixedhw[9] = 0x00;␊
297␉␉␉resource_template_register_fixedhw[18] = 0x00;␊
298␉␉␉aml_add_buffer(tmpl, resource_template_register_fixedhw, sizeof(resource_template_register_fixedhw));␊
299␉␉␉aml_add_byte(tmpl, 0x01); // C1␊
300␉␉␉aml_add_word(tmpl, 0x0001); // Latency␊
301␉␉␉aml_add_dword(tmpl, 0x000003e8); // Power␊
302␊
303␉␉␉uint8_t p_blk_lo, p_blk_hi;␊
304␊
305␉␉␉if (c2_enabled) // C2␊
306␉␉␉{␊
307␉␉␉␉p_blk_lo = acpi_cpu_p_blk + 4;␊
308␉␉␉␉p_blk_hi = (acpi_cpu_p_blk + 4) >> 8;␊
309␊
310␉␉␉␉tmpl = aml_add_package(pack);␊
311␉␉␉␉resource_template_register_systemio[11] = p_blk_lo; // C2␊
312␉␉␉␉resource_template_register_systemio[12] = p_blk_hi; // C2␊
313␉␉␉␉aml_add_buffer(tmpl, resource_template_register_systemio, sizeof(resource_template_register_systemio));␊
314␉␉␉␉aml_add_byte(tmpl, 0x02); // C2␊
315␉␉␉␉aml_add_word(tmpl, 0x0040); // Latency␊
316␉␉␉␉aml_add_dword(tmpl, 0x000001f4); // Power␊
317␉␉␉}␊
318␊
319␉␉␉if (c4_enabled) // C4␊
320␉␉␉{␊
321␉␉␉␉p_blk_lo = acpi_cpu_p_blk + 5;␊
322␉␉␉␉p_blk_hi = (acpi_cpu_p_blk + 5) >> 8;␊
323␊
324␉␉␉␉tmpl = aml_add_package(pack);␊
325␉␉␉␉resource_template_register_systemio[11] = p_blk_lo; // C4␊
326␉␉␉␉resource_template_register_systemio[12] = p_blk_hi; // C4␊
327␉␉␉␉aml_add_buffer(tmpl, resource_template_register_systemio, sizeof(resource_template_register_systemio));␊
328␉␉␉␉aml_add_byte(tmpl, 0x04); // C4␊
329␉␉␉␉aml_add_word(tmpl, 0x0080); // Latency␊
330␉␉␉␉aml_add_dword(tmpl, 0x000000C8); // Power␊
331␉␉␉}␊
332␉␉␉else if (c3_enabled) // C3␊
333␉␉␉{␊
334␉␉␉␉p_blk_lo = acpi_cpu_p_blk + 5;␊
335␉␉␉␉p_blk_hi = (acpi_cpu_p_blk + 5) >> 8;␊
336␊
337␉␉␉␉tmpl = aml_add_package(pack);␊
338␉␉␉␉resource_template_register_systemio[11] = p_blk_lo; // C3␊
339␉␉␉␉resource_template_register_systemio[12] = p_blk_hi; // C3␊
340␉␉␉␉aml_add_buffer(tmpl, resource_template_register_systemio, sizeof(resource_template_register_systemio));␊
341␉␉␉␉aml_add_byte(tmpl, 0x03);␉␉␉// C3␊
342␉␉␉␉aml_add_word(tmpl, 0x0060);␉␉␉// Latency␊
343␉␉␉␉aml_add_dword(tmpl, 0x0000015e);␉// Power␊
344␉␉␉}␊
345␉␉}␊
346␉␉else␊
347␉␉{␊
348␉␉␉// C1␊
349␉␉␉resource_template_register_fixedhw[11] = 0x00; // C1␊
350␉␉␉aml_add_buffer(tmpl, resource_template_register_fixedhw, sizeof(resource_template_register_fixedhw));␊
351␉␉␉aml_add_byte(tmpl, 0x01);␉␉␉// C1␊
352␉␉␉aml_add_word(tmpl, 0x0001);␉␉␉// Latency␊
353␉␉␉aml_add_dword(tmpl, 0x000003e8);␉// Power␊
354␊
355␉␉␉resource_template_register_fixedhw[18] = 0x03;␊
356␊
357␉␉␉if (c2_enabled) // C2␊
358␉␉␉{␊
359␉␉␉␉tmpl = aml_add_package(pack);␊
360␉␉␉␉resource_template_register_fixedhw[11] = 0x10; // C2␊
361␉␉␉␉aml_add_buffer(tmpl, resource_template_register_fixedhw, sizeof(resource_template_register_fixedhw));␊
362␉␉␉␉aml_add_byte(tmpl, 0x02);␉␉␉// C2␊
363␉␉␉␉aml_add_word(tmpl, 0x0040);␉␉␉// Latency␊
364␉␉␉␉aml_add_dword(tmpl, 0x000001f4);␉// Power␊
365␉␉␉}␊
366␊
367␉␉␉if (c4_enabled) // C4␊
368␉␉␉{␊
369␉␉␉␉tmpl = aml_add_package(pack);␊
370␉␉␉␉resource_template_register_fixedhw[11] = 0x30; // C4␊
371␉␉␉␉aml_add_buffer(tmpl, resource_template_register_fixedhw, sizeof(resource_template_register_fixedhw));␊
372␉␉␉␉aml_add_byte(tmpl, 0x04);␉␉␉// C4␊
373␉␉␉␉aml_add_word(tmpl, 0x0080);␉␉␉// Latency␊
374␉␉␉␉aml_add_dword(tmpl, 0x000000C8);␉// Power␊
375␉␉␉}␊
376␉␉␉else if (c3_enabled)␊
377␉␉␉{␊
378␉␉␉␉tmpl = aml_add_package(pack);␊
379␉␉␉␉resource_template_register_fixedhw[11] = 0x20; // C3␊
380␉␉␉␉aml_add_buffer(tmpl, resource_template_register_fixedhw, sizeof(resource_template_register_fixedhw));␊
381␉␉␉␉aml_add_byte(tmpl, 0x03);␉␉␉// C3␊
382␉␉␉␉aml_add_word(tmpl, 0x0060);␉␉␉// Latency␊
383␉␉␉␉aml_add_dword(tmpl, 0x0000015e);␉// Power␊
384␉␉␉}␊
385␉␉}␊
386␊
387␉␉// Aliaces␊
388␉␉int i;␊
389␉␉for (i = 0; i < acpi_cpu_count; i++) ␊
390␉␉{␊
391␉␉␉char name[9];␊
392␉␉␉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]);␊
393␊
394␉␉␉scop = aml_add_scope(root, name);␊
395␉␉␉␉aml_add_alias(scop, "CST_", "_CST");␊
396␉␉}␊
397␊
398␉␉aml_calculate_size(root);␊
399␊
400␉␉struct acpi_2_ssdt *ssdt = (struct acpi_2_ssdt *)AllocateKernelMemory(root->Size);␊
401␊
402␉␉aml_write_node(root, (void*)ssdt, 0);␊
403␊
404␉␉ssdt->Length = root->Size;␊
405␉␉ssdt->Checksum = 0;␊
406␉␉ssdt->Checksum = 256 - checksum8(ssdt, ssdt->Length);␊
407␊
408␉␉aml_destroy_node(root);␊
409␊
410␉␉// dumpPhysAddr("C-States SSDT content: ", ssdt, ssdt->Length);␊
411␉␉␊
412␉␉verbose ("SSDT with CPU C-States generated successfully\n");␊
413␊
414␉␉return ssdt;␊
415␉}␊
416␉else␊
417␉{␊
418␉␉verbose ("ACPI CPUs not found: C-States not generated !!!\n");␊
419␉}␊
420␊
421␉return NULL;␊
422}␊
423␊
424struct acpi_2_ssdt *generate_pss_ssdt(struct acpi_2_dsdt* dsdt)␊
425{␊
426␉char ssdt_header[] =␊
427␉{␊
428␉␉0x53, 0x53, 0x44, 0x54, 0x7E, 0x00, 0x00, 0x00, /* SSDT.... */␊
429␉␉0x01, 0x6A, 0x50, 0x6D, 0x52, 0x65, 0x66, 0x00, /* ..PmRef. */␊
430␉␉0x43, 0x70, 0x75, 0x50, 0x6D, 0x00, 0x00, 0x00, /* CpuPm... */␊
431␉␉0x00, 0x30, 0x00, 0x00, 0x49, 0x4E, 0x54, 0x4C, /* .0..INTL */␊
432␉␉0x31, 0x03, 0x10, 0x20,␉␉␉␉␉␉␉/* 1.._␉␉*/␊
433␉};␊
434␊
435␉if (Platform.CPU.Vendor != 0x756E6547) {␊
436␉␉verbose ("Not an Intel platform: P-States will not be generated !!!\n");␊
437␉␉return NULL;␊
438␉}␊
439␊
440␉if (!(Platform.CPU.Features & CPU_FEATURE_MSR)) {␊
441␉␉verbose ("Unsupported CPU: P-States will not be generated !!! No MSR support\n");␊
442␉␉return NULL;␊
443␉}␊
444␊
445␉if (acpi_cpu_count == 0)␊
446␉␉get_acpi_cpu_names((void*)dsdt, dsdt->Length);␊
447␊
448␉if (acpi_cpu_count > 0)␊
449␉{␊
450␉␉struct p_state initial, maximum, minimum, p_states[32];␊
451␉␉uint8_t p_states_count = 0;␊
452␊
453␉␉// Retrieving P-States, ported from code by superhai (c)␊
454␉␉switch (Platform.CPU.Family) {␊
455␉␉␉case 0x06:␊
456␉␉␉{␊
457␉␉␉␉switch (Platform.CPU.Model) ␊
458␉␉␉␉{␊
459␉␉␉␉␉case CPU_MODEL_DOTHAN:␉// Intel Pentium M␊
460␉␉␉␉␉case CPU_MODEL_YONAH:␉// Intel Mobile Core Solo, Duo␊
461␉␉␉␉␉case CPU_MODEL_MEROM:␉// Intel Mobile Core 2 Solo, Duo, Xeon 30xx, Xeon 51xx, Xeon X53xx, Xeon E53xx, Xeon X32xx␊
462␉␉␉␉␉case CPU_MODEL_PENRYN:␉// Intel Core 2 Solo, Duo, Quad, Extreme, Xeon X54xx, Xeon X33xx␊
463␉␉␉␉␉case CPU_MODEL_ATOM:␉// Intel Atom (45nm)␊
464␉␉␉␉␉{␊
465␉␉␉␉␉␉bool cpu_dynamic_fsb = false;␊
466␊
467␉␉␉␉␉␉if (rdmsr64(MSR_IA32_EXT_CONFIG) & (1 << 27)) ␊
468␉␉␉␉␉␉{␊
469␉␉␉␉␉␉␉wrmsr64(MSR_IA32_EXT_CONFIG, (rdmsr64(MSR_IA32_EXT_CONFIG) | (1 << 28))); ␊
470␉␉␉␉␉␉␉delay(1);␊
471␉␉␉␉␉␉␉cpu_dynamic_fsb = rdmsr64(MSR_IA32_EXT_CONFIG) & (1 << 28);␊
472␉␉␉␉␉␉}␊
473␊
474␉␉␉␉␉␉bool cpu_noninteger_bus_ratio = (rdmsr64(MSR_IA32_PERF_STATUS) & (1ULL << 46));␊
475␊
476␉␉␉␉␉␉initial.Control = rdmsr64(MSR_IA32_PERF_STATUS);␊
477␊
478␉␉␉␉␉␉maximum.Control = ((rdmsr64(MSR_IA32_PERF_STATUS) >> 32) & 0x1F3F) | (0x4000 * cpu_noninteger_bus_ratio);␊
479␉␉␉␉␉␉maximum.CID = ((maximum.FID & 0x1F) << 1) | cpu_noninteger_bus_ratio;␊
480␊
481␉␉␉␉␉␉minimum.FID = ((rdmsr64(MSR_IA32_PERF_STATUS) >> 24) & 0x1F) | (0x80 * cpu_dynamic_fsb);␊
482␉␉␉␉␉␉minimum.VID = ((rdmsr64(MSR_IA32_PERF_STATUS) >> 48) & 0x3F);␊
483␊
484␉␉␉␉␉␉if (minimum.FID == 0) ␊
485␉␉␉␉␉␉{␊
486␉␉␉␉␉␉␉uint64_t msr;␊
487␉␉␉␉␉␉␉uint8_t i;␊
488␉␉␉␉␉␉␉// Probe for lowest fid␊
489␉␉␉␉␉␉␉for (i = maximum.FID; i >= 0x6; i--)␊
490␉␉␉␉␉␉␉{␊
491␉␉␉␉␉␉␉␉msr = rdmsr64(MSR_IA32_PERF_CONTROL);␊
492␉␉␉␉␉␉␉␉wrmsr64(MSR_IA32_PERF_CONTROL, (msr & 0xFFFFFFFFFFFF0000ULL) | (i << 8) | minimum.VID);␊
493␉␉␉␉␉␉␉␉intel_waitforsts();␊
494␉␉␉␉␉␉␉␉minimum.FID = (rdmsr64(MSR_IA32_PERF_STATUS) >> 8) & 0x1F; ␊
495␉␉␉␉␉␉␉␉delay(1);␊
496␉␉␉␉␉␉␉}␊
497␊
498␉␉␉␉␉␉␉msr = rdmsr64(MSR_IA32_PERF_CONTROL);␊
499␉␉␉␉␉␉␉wrmsr64(MSR_IA32_PERF_CONTROL, (msr & 0xFFFFFFFFFFFF0000ULL) | (maximum.FID << 8) | maximum.VID);␊
500␉␉␉␉␉␉␉intel_waitforsts();␊
501␉␉␉␉␉␉}␊
502␊
503␉␉␉␉␉␉if (minimum.VID == maximum.VID) ␊
504␉␉␉␉␉␉{␊
505␉␉␉␉␉␉␉uint64_t msr;␊
506␉␉␉␉␉␉␉uint8_t i;␊
507␉␉␉␉␉␉␉// Probe for lowest vid␊
508␉␉␉␉␉␉␉for (i = maximum.VID; i > 0xA; i--) ␊
509␉␉␉␉␉␉␉{␊
510␉␉␉␉␉␉␉␉msr = rdmsr64(MSR_IA32_PERF_CONTROL);␊
511␉␉␉␉␉␉␉␉wrmsr64(MSR_IA32_PERF_CONTROL, (msr & 0xFFFFFFFFFFFF0000ULL) | (minimum.FID << 8) | i);␊
512␉␉␉␉␉␉␉␉intel_waitforsts();␊
513␉␉␉␉␉␉␉␉minimum.VID = rdmsr64(MSR_IA32_PERF_STATUS) & 0x3F; ␊
514␉␉␉␉␉␉␉␉delay(1);␊
515␉␉␉␉␉␉␉}␊
516␊
517␉␉␉␉␉␉␉msr = rdmsr64(MSR_IA32_PERF_CONTROL);␊
518␉␉␉␉␉␉␉wrmsr64(MSR_IA32_PERF_CONTROL, (msr & 0xFFFFFFFFFFFF0000ULL) | (maximum.FID << 8) | maximum.VID);␊
519␉␉␉␉␉␉␉intel_waitforsts();␊
520␉␉␉␉␉␉}␊
521␊
522␉␉␉␉␉␉minimum.CID = ((minimum.FID & 0x1F) << 1) >> cpu_dynamic_fsb;␊
523␊
524␉␉␉␉␉␉// Sanity check␊
525␉␉␉␉␉␉if (maximum.CID < minimum.CID) ␊
526␉␉␉␉␉␉{␊
527␉␉␉␉␉␉␉DBG("P-States: Insane FID values!");␊
528␉␉␉␉␉␉␉p_states_count = 0;␊
529␉␉␉␉␉␉}␊
530␉␉␉␉␉␉else␊
531␉␉␉␉␉␉{␊
532␉␉␉␉␉␉␉// Finalize P-States␊
533␉␉␉␉␉␉␉// Find how many P-States machine supports␊
534␉␉␉␉␉␉␉p_states_count = maximum.CID - minimum.CID + 1;␊
535␊
536␉␉␉␉␉␉␉if (p_states_count > 32) ␊
537␉␉␉␉␉␉␉␉p_states_count = 32;␊
538␊
539␉␉␉␉␉␉␉uint8_t vidstep;␊
540␉␉␉␉␉␉␉uint8_t i = 0, u, invalid = 0;␊
541␊
542␉␉␉␉␉␉␉vidstep = ((maximum.VID << 2) - (minimum.VID << 2)) / (p_states_count - 1);␊
543␊
544␉␉␉␉␉␉␉for (u = 0; u < p_states_count; u++) ␊
545␉␉␉␉␉␉␉{␊
546␉␉␉␉␉␉␉␉i = u - invalid;␊
547␊
548␉␉␉␉␉␉␉␉p_states[i].CID = maximum.CID - u;␊
549␉␉␉␉␉␉␉␉p_states[i].FID = (p_states[i].CID >> 1);␊
550␊
551␉␉␉␉␉␉␉␉if (p_states[i].FID < 0x6) ␊
552␉␉␉␉␉␉␉␉{␊
553␉␉␉␉␉␉␉␉␉if (cpu_dynamic_fsb) ␊
554␉␉␉␉␉␉␉␉␉␉p_states[i].FID = (p_states[i].FID << 1) | 0x80;␊
555␉␉␉␉␉␉␉␉}␊
556␉␉␉␉␉␉␉␉else if (cpu_noninteger_bus_ratio) ␊
557␉␉␉␉␉␉␉␉{␊
558␉␉␉␉␉␉␉␉␉p_states[i].FID = p_states[i].FID | (0x40 * (p_states[i].CID & 0x1));␊
559␉␉␉␉␉␉␉␉}␊
560␊
561␉␉␉␉␉␉␉␉if (i && p_states[i].FID == p_states[i-1].FID)␊
562␉␉␉␉␉␉␉␉␉invalid++;␊
563␊
564␉␉␉␉␉␉␉␉p_states[i].VID = ((maximum.VID << 2) - (vidstep * u)) >> 2;␊
565␊
566␉␉␉␉␉␉␉␉uint32_t multiplier = p_states[i].FID & 0x1f;␉␉// = 0x08␊
567␉␉␉␉␉␉␉␉bool half = p_states[i].FID & 0x40;␉␉␉␉␉// = 0x01␊
568␉␉␉␉␉␉␉␉bool dfsb = p_states[i].FID & 0x80;␉␉␉␉␉// = 0x00␊
569␉␉␉␉␉␉␉␉uint32_t fsb = Platform.CPU.FSBFrequency / 1000000; // = 400␊
570␉␉␉␉␉␉␉␉uint32_t halffsb = (fsb + 1) >> 1;␉␉␉␉␉// = 200␊
571␉␉␉␉␉␉␉␉uint32_t frequency = (multiplier * fsb);␉␉␉// = 3200␊
572␊
573␉␉␉␉␉␉␉␉p_states[i].Frequency = (frequency + (half * halffsb)) >> dfsb;␉// = 3200 + 200 = 3400␊
574␉␉␉␉␉␉␉}␊
575␊
576␉␉␉␉␉␉␉p_states_count -= invalid;␊
577␉␉␉␉␉␉}␊
578␊
579␉␉␉␉␉␉break;␊
580␉␉␉␉␉}␊
581␉␉␉␉␉case CPU_MODEL_FIELDS:␉␉// Intel Core i5, i7, Xeon X34xx LGA1156 (45nm)␊
582␉␉␉␉␉case CPU_MODEL_DALES:␉␉␊
583␉␉␉␉␉case CPU_MODEL_DALES_32NM:␉// Intel Core i3, i5 LGA1156 (32nm)␊
584␉␉␉␉␉case CPU_MODEL_NEHALEM:␉␉// Intel Core i7, Xeon W35xx, Xeon X55xx, Xeon E55xx LGA1366 (45nm)␊
585␉␉␉␉␉case CPU_MODEL_NEHALEM_EX:␉// Intel Xeon X75xx, Xeon X65xx, Xeon E75xx, Xeon E65xx␊
586␉␉␉␉␉case CPU_MODEL_WESTMERE:␉// Intel Core i7, Xeon X56xx, Xeon E56xx, Xeon W36xx LGA1366 (32nm) 6 Core␊
587␉␉␉␉␉case CPU_MODEL_WESTMERE_EX:␉// Intel Xeon E7␊
588␉␉␉␉␉case CPU_MODEL_SANDYBRIDGE:␉// Intel Core i3, i5, i7 LGA1155 (32nm)␊
589␉␉␉␉␉case CPU_MODEL_JAKETOWN:// Intel Core i7, Xeon E5 LGA2011 (32nm)␊
590␉␉␉␉␉case CPU_MODEL_IVYBRIDGE:␉// Intel Core i3, i5, i7 LGA1155 (22nm)␊
591␉␉␉␉␉case CPU_MODEL_HASWELL:␉//␊
592␉␉␉␉␉case CPU_MODEL_IVYBRIDGE_XEON: //␊
593␉␉␉␉␉//case CPU_MODEL_HASWELL_H:␉//␊
594␉␉␉␉␉case CPU_MODEL_HASWELL_MB:␉//␊
595␉␉␉␉␉case CPU_MODEL_HASWELL_ULT:␉//␊
596␉␉␉␉␉case CPU_MODEL_CRYSTALWELL:␉//␊
597␊
598␉␉␉␉␉{␊
599␉␉␉␉␉if ((Platform.CPU.Model == CPU_MODEL_SANDYBRIDGE) || (Platform.CPU.Model == CPU_MODEL_JAKETOWN) ||␊
600␉␉␉␉␉␉(Platform.CPU.Model == CPU_MODEL_IVYBRIDGE) || (Platform.CPU.Model == CPU_MODEL_HASWELL) ||␊
601␉␉␉␉␉␉(Platform.CPU.Model == CPU_MODEL_IVYBRIDGE_XEON) || (Platform.CPU.Model == CPU_MODEL_HASWELL_MB) ||␊
602␉␉␉␉␉␉(Platform.CPU.Model == CPU_MODEL_HASWELL_ULT) || (Platform.CPU.Model == CPU_MODEL_CRYSTALWELL))␊
603␉␉␉␉␉{␊
604␉␉␉␉␉␉maximum.Control = (rdmsr64(MSR_IA32_PERF_STATUS) >> 8) & 0xff;␊
605␉␉␉␉␉}␊
606␉␉␉␉␉else␊
607␉␉␉␉␉{␊
608␉␉␉␉␉␉maximum.Control = rdmsr64(MSR_IA32_PERF_STATUS) & 0xff;␊
609␉␉␉␉␉}␊
610␊
611␉␉␉␉␉minimum.Control = (rdmsr64(MSR_PLATFORM_INFO) >> 40) & 0xff;␊
612␊
613␉␉␉␉␉␉verbose("P-States: min 0x%x, max 0x%x\n", minimum.Control, maximum.Control);␉␉␉␊
614␊
615␉␉␉␉␉␉// Sanity check␊
616␉␉␉␉␉␉if (maximum.Control < minimum.Control) ␊
617␉␉␉␉␉␉{␊
618␉␉␉␉␉␉␉DBG("Insane control values!");␊
619␉␉␉␉␉␉␉p_states_count = 0;␊
620␉␉␉␉␉␉}␊
621␉␉␉␉␉␉else␊
622␉␉␉␉␉␉{␊
623␉␉␉␉␉␉␉uint8_t i;␊
624␉␉␉␉␉␉␉p_states_count = 0;␊
625␊
626␉␉␉␉␉␉␉for (i = maximum.Control; i >= minimum.Control; i--) ␊
627␉␉␉␉␉␉␉{␊
628␉␉␉␉␉␉␉␉p_states[p_states_count].Control = i;␊
629␉␉␉␉␉␉␉␉p_states[p_states_count].CID = p_states[p_states_count].Control << 1;␊
630␉␉␉␉␉␉␉␉p_states[p_states_count].Frequency = (Platform.CPU.FSBFrequency / 1000000) * i;␊
631␉␉␉␉␉␉␉␉p_states_count++;␊
632␉␉␉␉␉␉␉}␊
633␉␉␉␉␉␉}␊
634␉␉␉␉␉␉␊
635␉␉␉␉␉␉break;␊
636␉␉␉␉␉}␊
637␉␉␉␉␉default:␊
638␉␉␉␉␉␉verbose ("Unsupported CPU: P-States not generated !!! Unknown CPU Type\n");␊
639␉␉␉␉␉␉break;␊
640␉␉␉␉}␊
641␉␉␉}␊
642␉␉}␊
643␊
644␉␉// Generating SSDT␊
645␉␉if (p_states_count > 0)␊
646␉␉{␊
647␉␉␉int i;␊
648␊
649␉␉␉struct aml_chunk* root = aml_create_node(NULL);␊
650␉␉␉␉aml_add_buffer(root, ssdt_header, sizeof(ssdt_header)); // SSDT header␊
651␊
652␉␉␉␉␉struct aml_chunk* scop = aml_add_scope(root, "\\_PR_");␊
653␉␉␉␉␉␉struct aml_chunk* name = aml_add_name(scop, "PSS_");␊
654␉␉␉␉␉␉␉struct aml_chunk* pack = aml_add_package(name);␊
655␊
656␉␉␉␉␉␉␉␉for (i = 0; i < p_states_count; i++)␊
657␉␉␉␉␉␉␉␉{␊
658␉␉␉␉␉␉␉␉␉struct aml_chunk* pstt = aml_add_package(pack);␊
659␊
660␉␉␉␉␉␉␉␉␉aml_add_dword(pstt, p_states[i].Frequency);␊
661␉␉␉␉␉␉␉␉␉aml_add_dword(pstt, 0x00000000); // Power␊
662␉␉␉␉␉␉␉␉␉aml_add_dword(pstt, 0x0000000A); // Latency␊
663␉␉␉␉␉␉␉␉␉aml_add_dword(pstt, 0x0000000A); // Latency␊
664␉␉␉␉␉␉␉␉␉aml_add_dword(pstt, p_states[i].Control);␊
665␉␉␉␉␉␉␉␉␉aml_add_dword(pstt, i+1); // Status␊
666␉␉␉␉␉␉␉␉}␊
667␊
668␉␉␉// Add aliaces␊
669␉␉␉for (i = 0; i < acpi_cpu_count; i++) ␊
670␉␉␉{␊
671␉␉␉␉char name[9];␊
672␉␉␉␉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]);␊
673␊
674␉␉␉␉scop = aml_add_scope(root, name);␊
675␉␉␉␉aml_add_alias(scop, "PSS_", "_PSS");␊
676␉␉␉}␊
677␊
678␉␉␉aml_calculate_size(root);␊
679␊
680␉␉␉struct acpi_2_ssdt *ssdt = (struct acpi_2_ssdt *)AllocateKernelMemory(root->Size);␊
681␊
682␉␉␉aml_write_node(root, (void*)ssdt, 0);␊
683␊
684␉␉␉ssdt->Length = root->Size;␊
685␉␉␉ssdt->Checksum = 0;␊
686␉␉␉ssdt->Checksum = 256 - checksum8(ssdt, ssdt->Length);␊
687␊
688␉␉␉aml_destroy_node(root);␊
689␊
690␉␉␉//dumpPhysAddr("P-States SSDT content: ", ssdt, ssdt->Length);␊
691␊
692␉␉␉verbose ("SSDT with CPU P-States generated successfully\n");␊
693␊
694␉␉␉return ssdt;␊
695␉␉}␊
696␉}␊
697␉else ␊
698␉{␊
699␉␉verbose ("ACPI CPUs not found: P-States not generated !!!\n");␊
700␉}␊
701␊
702␉return NULL;␊
703}␊
704␊
705struct acpi_2_fadt *patch_fadt(struct acpi_2_fadt *fadt, struct acpi_2_dsdt *new_dsdt)␊
706{␊
707␉extern void setupSystemType(); ␊
708␊
709␉struct acpi_2_fadt *fadt_mod;␊
710␉bool fadt_rev2_needed = false;␊
711␉bool fix_restart;␊
712␉bool fix_restart_ps2;␊
713␉const char * value;␊
714␊
715␉// Restart Fix␊
716␉if (Platform.CPU.Vendor == 0x756E6547)␊
717␉{␉/* Intel */␊
718␉␉fix_restart = true;␊
719␉␉fix_restart_ps2 = false;␊
720␉␉if ( getBoolForKey(kPS2RestartFix, &fix_restart_ps2, &bootInfo->chameleonConfig) && fix_restart_ps2)␊
721␉␉{␊
722␉␉␉fix_restart = true;␊
723␉␉}␊
724␉␉else␊
725␉␉{␊
726␉␉␉getBoolForKey(kRestartFix, &fix_restart, &bootInfo->chameleonConfig);␊
727␉␉}␊
728␉}␊
729␉else␊
730␉{␊
731␉␉verbose ("Not an Intel platform: Restart Fix not applied !!!\n");␊
732␉␉fix_restart = false;␊
733␉}␊
734␊
735␉if (fix_restart)␊
736␉{␊
737␉␉fadt_rev2_needed = true;␊
738␉}␊
739␊
740␉// Allocate new fadt table␊
741␉if (fadt->Length < 0x84 && fadt_rev2_needed)␊
742␉{␊
743␉␉fadt_mod=(struct acpi_2_fadt *)AllocateKernelMemory(0x84);␊
744␉␉memcpy(fadt_mod, fadt, fadt->Length);␊
745␉␉fadt_mod->Length = 0x84;␊
746␉␉fadt_mod->Revision = 0x02; // FADT rev 2 (ACPI 1.0B MS extensions)␊
747␉}␊
748␉else␊
749␉{␊
750␉␉fadt_mod=(struct acpi_2_fadt *)AllocateKernelMemory(fadt->Length);␊
751␉␉memcpy(fadt_mod, fadt, fadt->Length);␊
752␉}␊
753␉// Determine system type / PM_Model␊
754␉if ( (value=getStringForKey(kSystemType, &bootInfo->chameleonConfig))!=NULL)␊
755␉{␊
756␉␉if (Platform.Type > 6) ␊
757␉␉{␊
758␉␉␉if(fadt_mod->PM_Profile<=6)␊
759␉␉␉{␊
760␉␉␉␉Platform.Type = fadt_mod->PM_Profile; // get the fadt if correct␊
761␉␉␉}␊
762␉␉␉else␊
763␉␉␉{␊
764␉␉␉␉Platform.Type = 1;␉␉/* Set a fixed value (Desktop) */␊
765␉␉␉}␊
766␉␉␉verbose("Error: system-type must be 0..6. Defaulting to %d !\n", Platform.Type);␊
767␉␉}␊
768␉␉else␊
769␉␉{␊
770␉␉␉Platform.Type = (unsigned char) strtoul(value, NULL, 10);␊
771␉␉}␊
772␉}␊
773␉// Set PM_Profile from System-type if only user wanted this value to be forced␊
774␉if (fadt_mod->PM_Profile != Platform.Type) ␊
775␉{␊
776␉␉if (value) ␊
777␉␉{␊
778␉␉␉// user has overriden the SystemType so take care of it in FACP␊
779␉␉␉verbose("FADT: changing PM_Profile from 0x%02x to 0x%02x\n", fadt_mod->PM_Profile, Platform.Type);␊
780␉␉␉fadt_mod->PM_Profile = Platform.Type;␊
781␉␉}␊
782␉␉else␊
783␉␉{␊
784␉␉␉// PM_Profile has a different value and no override has been set, so reflect the user value to ioregs␊
785␉␉␉Platform.Type = fadt_mod->PM_Profile <= 6 ? fadt_mod->PM_Profile : 1;␊
786␉␉}␊
787␉}␊
788␉// We now have to write the systemm-type in ioregs: we cannot do it before in setupDeviceTree()␊
789␉// because we need to take care of facp original content, if it is correct.␊
790␉setupSystemType();␊
791␊
792␉// Patch FADT to fix restart␊
793␉if (fix_restart)␊
794␉{␊
795␉␉if (fix_restart_ps2)␊
796␉␉{␊
797␉␉␉fadt_mod->Flags|= 0x400;␊
798␉␉␉fadt_mod->Reset_SpaceID␉␉= 0x01; // System I/O␊
799␉␉␉fadt_mod->Reset_BitWidth␉= 0x08; // 1 byte␊
800␉␉␉fadt_mod->Reset_BitOffset␉= 0x00; // Offset 0␊
801␉␉␉fadt_mod->Reset_AccessWidth␉= 0x01; // Byte access␊
802␉␉␉fadt_mod->Reset_Address␉␉= 0x64; // Address of the register␊
803␉␉␉fadt_mod->Reset_Value␉␉= 0xfe; // Value to write to reset the system␊
804␉␉␉msglog("FADT: PS2 Restart Fix applied!\n");␊
805␉␉}␊
806␉␉else␊
807␉␉{␊
808␉␉␉fadt_mod->Flags|= 0x400;␊
809␉␉␉fadt_mod->Reset_SpaceID␉␉= 0x01; // System I/O␊
810␉␉␉fadt_mod->Reset_BitWidth␉= 0x08; // 1 byte␊
811␉␉␉fadt_mod->Reset_BitOffset␉= 0x00; // Offset 0␊
812␉␉␉fadt_mod->Reset_AccessWidth␉= 0x01; // Byte access␊
813␉␉␉fadt_mod->Reset_Address␉␉= 0x0cf9; // Address of the register␊
814␉␉␉fadt_mod->Reset_Value␉␉= 0x06; // Value to write to reset the system␊
815␉␉␉verbose("FADT: ACPI Restart Fix applied!\n");␊
816␉␉}␊
817␊
818␉}␊
819␊
820␉// Patch DSDT Address if we have loaded DSDT.aml␊
821␉if(new_dsdt)␊
822␉{␊
823␉␉DBG("DSDT: Old @%x,%x, ",fadt_mod->DSDT,fadt_mod->X_DSDT);␊
824␊
825␉␉fadt_mod->DSDT=(uint32_t)new_dsdt;␊
826␉␉if ((uint32_t)(&(fadt_mod->X_DSDT))-(uint32_t)fadt_mod+8<=fadt_mod->Length)␊
827␉␉{␊
828␉␉␉fadt_mod->X_DSDT=(uint32_t)new_dsdt;␊
829␉␉}␊
830␊
831␉␉DBG("New @%x,%x\n",fadt_mod->DSDT,fadt_mod->X_DSDT);␊
832␊
833␉␉verbose("FADT: Using custom DSDT!\n");␊
834␉}␊
835␊
836␉// Correct the checksum␊
837␉fadt_mod->Checksum=0;␊
838␉fadt_mod->Checksum=256-checksum8(fadt_mod,fadt_mod->Length);␊
839␊
840␉return fadt_mod;␊
841}␊
842␊
843/* Setup ACPI without replacing DSDT. */␊
844int setupAcpiNoMod()␊
845{␊
846//␉addConfigurationTable(&gEfiAcpiTableGuid, getAddressOfAcpiTable(), "ACPI");␊
847//␉addConfigurationTable(&gEfiAcpi20TableGuid, getAddressOfAcpi20Table(), "ACPI_20");␊
848␉/* XXX aserebln why uint32 cast if pointer is uint64 ? */␊
849␉acpi10_p = (uint32_t)getAddressOfAcpiTable();␊
850␉acpi20_p = (uint32_t)getAddressOfAcpi20Table();␊
851␉addConfigurationTable(&gEfiAcpiTableGuid, &acpi10_p, "ACPI");␊
852␉if(acpi20_p) addConfigurationTable(&gEfiAcpi20TableGuid, &acpi20_p, "ACPI_20");␊
853␉return 1;␊
854}␊
855␊
856/* Setup ACPI. Replace DSDT if DSDT.aml is found */␊
857int setupAcpi(void)␊
858{␊
859␉int version;␊
860␉void *new_dsdt;␊
861␊
862␊
863␉const char *filename;␊
864␉char dirSpec[128];␊
865␉int len = 0;␊
866␊
867␉// always reset cpu count to 0 when injecting new acpi␊
868␉acpi_cpu_count = 0;␊
869␊
870␉/* Try using the file specified with the DSDT option */␊
871␉if (getValueForKey(kDSDT, &filename, &len, &bootInfo->chameleonConfig))␊
872␉{␊
873␉␉sprintf(dirSpec, filename);␊
874␉}␊
875␉else␊
876␉{␊
877␉␉sprintf(dirSpec, "DSDT.aml");␊
878␉}␊
879␊
880␉// Load replacement DSDT␊
881␉new_dsdt = loadACPITable(dirSpec);␊
882␉// Mozodojo: going to patch FACP and load SSDT's even if DSDT.aml is not present␊
883␉/*if (!new_dsdt)␊
884␉ {␊
885␉ return setupAcpiNoMod();␊
886␉ }*/␊
887␊
888␉// Mozodojo: Load additional SSDTs␊
889␉struct acpi_2_ssdt *new_ssdt[32]; // 30 + 2 additional tables for pss & cst␊
890␉int ssdt_count=0;␊
891␊
892␉// SSDT Options␊
893␉bool drop_ssdt=false, generate_pstates=false, generate_cstates=false;␊
894␊
895␉getBoolForKey(kDropSSDT, &drop_ssdt, &bootInfo->chameleonConfig);␊
896␉getBoolForKey(kGeneratePStates, &generate_pstates, &bootInfo->chameleonConfig);␊
897␉getBoolForKey(kGenerateCStates, &generate_cstates, &bootInfo->chameleonConfig);␊
898␊
899␉DBG("Generating P-States config: %d\n", generate_pstates);␊
900␉DBG("Generating C-States config: %d\n", generate_cstates);␊
901␊
902␉{␊
903␉␉int i;␊
904␊
905␉␉for (i=0; i<30; i++)␊
906␉␉{␊
907␉␉␉char filename[512];␊
908␊
909␉␉␉sprintf(filename, i>0?"SSDT-%d.aml":"SSDT.aml", i);␊
910␊
911␉␉␉if ( (new_ssdt[ssdt_count] = loadACPITable(filename)) )␊
912␉␉␉{␊
913␉␉␉␉ssdt_count++;␊
914␉␉␉}␊
915␉␉␉else␊
916␉␉␉{␊
917␉␉␉␉break;␊
918␉␉␉}␊
919␉␉}␊
920␉}␊
921␊
922␉// Do the same procedure for both versions of ACPI␊
923␉for (version=0; version<2; version++) {␊
924␉␉struct acpi_2_rsdp *rsdp, *rsdp_mod;␊
925␉␉struct acpi_2_rsdt *rsdt, *rsdt_mod;␊
926␉␉int rsdplength;␊
927␊
928␉␉// Find original rsdp␊
929␉␉rsdp=(struct acpi_2_rsdp *)(version?getAddressOfAcpi20Table():getAddressOfAcpiTable());␊
930␉␉if (!rsdp)␊
931␉␉{␊
932␉␉␉DBG("No ACPI version %d found. Ignoring\n", version+1);␊
933␉␉␉if (version)␊
934␉␉␉{␊
935␉␉␉␉addConfigurationTable(&gEfiAcpi20TableGuid, NULL, "ACPI_20");␊
936␉␉␉}␊
937␉␉␉else␊
938␉␉␉{␊
939␉␉␉␉addConfigurationTable(&gEfiAcpiTableGuid, NULL, "ACPI");␊
940␉␉␉}␊
941␉␉␉continue;␊
942␉␉}␊
943␉␉rsdplength=version?rsdp->Length:20;␊
944␊
945␉␉DBG("RSDP version %d found @%x. Length=%d\n",version+1,rsdp,rsdplength);␊
946␊
947␉␉/* FIXME: no check that memory allocation succeeded ␊
948␉␉ * Copy and patch RSDP,RSDT, XSDT and FADT␊
949␉␉ * For more info see ACPI Specification pages 110 and following␊
950␉␉ */␊
951␊
952␉␉rsdp_mod=(struct acpi_2_rsdp *) AllocateKernelMemory(rsdplength);␊
953␉␉memcpy(rsdp_mod, rsdp, rsdplength);␊
954␊
955␉␉rsdt=(struct acpi_2_rsdt *)(rsdp->RsdtAddress);␊
956␊
957␉␉DBG("RSDT @%x, Length %d\n",rsdt, rsdt->Length);␊
958␉␉␊
959␉␉if (rsdt && (uint32_t)rsdt !=0xffffffff && rsdt->Length<0x10000)␊
960␉␉{␊
961␉␉␉uint32_t *rsdt_entries;␊
962␉␉␉int rsdt_entries_num;␊
963␉␉␉int dropoffset=0, i;␊
964␊
965␉␉␉// mozo: using malloc cos I didn't found how to free already allocated kernel memory␊
966␉␉␉rsdt_mod=(struct acpi_2_rsdt *)malloc(rsdt->Length); ␊
967␉␉␉memcpy (rsdt_mod, rsdt, rsdt->Length);␊
968␉␉␉rsdp_mod->RsdtAddress=(uint32_t)rsdt_mod;␊
969␉␉␉rsdt_entries_num=(rsdt_mod->Length-sizeof(struct acpi_2_rsdt))/4;␊
970␉␉␉rsdt_entries=(uint32_t *)(rsdt_mod+1);␊
971␉␉␉for (i=0;i<rsdt_entries_num;i++)␊
972␉␉␉{␊
973␉␉␉␉char *table=(char *)(rsdt_entries[i]);␊
974␉␉␉␉if (!table)␊
975␉␉␉␉{␊
976␉␉␉␉␉continue;␊
977␉␉␉␉}␊
978␊
979␉␉␉␉DBG("TABLE %c%c%c%c,",table[0],table[1],table[2],table[3]);␊
980␊
981␉␉␉␉rsdt_entries[i-dropoffset]=rsdt_entries[i];␊
982␊
983␉␉␉␉if (drop_ssdt && tableSign(table, "SSDT"))␊
984␉␉␉␉{␊
985␉␉␉␉␉dropoffset++;␊
986␉␉␉␉␉continue;␊
987␉␉␉␉}␊
988␉␉␉␉if (tableSign(table, "DSDT"))␊
989␉␉␉␉{␊
990␉␉␉␉␉DBG("DSDT found\n");␊
991␊
992␉␉␉␉␉if(new_dsdt)␊
993␉␉␉␉␉{␊
994␉␉␉␉␉␉rsdt_entries[i-dropoffset]=(uint32_t)new_dsdt;␊
995␉␉␉␉␉}␊
996␊
997␉␉␉␉␉continue;␊
998␉␉␉␉}␊
999␊
1000␉␉␉␉if (tableSign(table, "FACP"))␊
1001␉␉␉␉{␊
1002␉␉␉␉␉struct acpi_2_fadt *fadt, *fadt_mod;␊
1003␉␉␉␉␉fadt=(struct acpi_2_fadt *)rsdt_entries[i];␊
1004␊
1005␉␉␉␉␉DBG("FADT found @%x, Length %d\n",fadt, fadt->Length);␊
1006␊
1007␉␉␉␉␉if (!fadt || (uint32_t)fadt == 0xffffffff || fadt->Length>0x10000)␊
1008␉␉␉␉␉{␊
1009␉␉␉␉␉␉printf("FADT incorrect. Not modified\n");␊
1010␉␉␉␉␉␉continue;␊
1011␉␉␉␉␉}␊
1012␉␉␉␉␉␊
1013␉␉␉␉␉fadt_mod = patch_fadt(fadt, new_dsdt);␊
1014␉␉␉␉␉rsdt_entries[i-dropoffset]=(uint32_t)fadt_mod;␊
1015␉␉␉␉␉␊
1016␉␉␉␉␉// Generate _CST SSDT␊
1017␉␉␉␉␉if (generate_cstates && (new_ssdt[ssdt_count] = generate_cst_ssdt(fadt_mod)))␊
1018␉␉␉␉␉{␊
1019␉␉␉␉␉␉DBG("C-States generated\n");␊
1020␉␉␉␉␉␉generate_cstates = false; // Generate SSDT only once!␊
1021␉␉␉␉␉␉ssdt_count++;␊
1022␉␉␉␉␉}␊
1023␊
1024␉␉␉␉␉// Generating _PSS SSDT␊
1025␉␉␉␉␉if (generate_pstates && (new_ssdt[ssdt_count] = generate_pss_ssdt((void*)fadt_mod->DSDT)))␊
1026␉␉␉␉␉{␊
1027␉␉␉␉␉␉DBG("P-States generated\n");␊
1028␉␉␉␉␉␉generate_pstates = false; // Generate SSDT only once!␊
1029␉␉␉␉␉␉ssdt_count++;␊
1030␉␉␉␉␉}␊
1031␊
1032␉␉␉␉␉continue;␊
1033␉␉␉␉}␊
1034␉␉␉}␊
1035␉␉␉DBG("\n");␊
1036␊
1037␉␉␉// Allocate rsdt in Kernel memory area␊
1038␉␉␉rsdt_mod->Length += 4*ssdt_count - 4*dropoffset;␊
1039␉␉␉struct acpi_2_rsdt *rsdt_copy = (struct acpi_2_rsdt *)AllocateKernelMemory(rsdt_mod->Length);␊
1040␉␉␉memcpy (rsdt_copy, rsdt_mod, rsdt_mod->Length);␊
1041␉␉␉free(rsdt_mod); rsdt_mod = rsdt_copy;␊
1042␉␉␉rsdp_mod->RsdtAddress=(uint32_t)rsdt_mod;␊
1043␉␉␉rsdt_entries_num=(rsdt_mod->Length-sizeof(struct acpi_2_rsdt))/4;␊
1044␉␉␉rsdt_entries=(uint32_t *)(rsdt_mod+1);␊
1045␊
1046␉␉␉// Mozodojo: Insert additional SSDTs into RSDT␊
1047␉␉␉if(ssdt_count>0)␊
1048␉␉␉{␊
1049␉␉␉␉int j;␊
1050␊
1051␉␉␉␉for (j=0; j<ssdt_count; j++)␊
1052␉␉␉␉␉rsdt_entries[i-dropoffset+j]=(uint32_t)new_ssdt[j];␊
1053␊
1054␉␉␉␉verbose("RSDT: Added %d SSDT table(s)\n", ssdt_count);␊
1055␊
1056␉␉␉}␊
1057␊
1058␉␉␉// Correct the checksum of RSDT␊
1059␉␉␉DBG("RSDT: Original checksum %d, ", rsdt_mod->Checksum);␊
1060␊
1061␉␉␉rsdt_mod->Checksum=0;␊
1062␉␉␉rsdt_mod->Checksum=256-checksum8(rsdt_mod,rsdt_mod->Length);␊
1063␊
1064␉␉␉DBG("New checksum %d at %x\n", rsdt_mod->Checksum,rsdt_mod);␊
1065␉␉}␊
1066␉␉else␊
1067␉␉{␊
1068␉␉␉rsdp_mod->RsdtAddress=0;␊
1069␉␉␉printf("RSDT not found or incorrect\n");␊
1070␉␉}␊
1071␊
1072␉␉if (version)␊
1073␉␉{␊
1074␉␉␉struct acpi_2_xsdt *xsdt, *xsdt_mod;␊
1075␊
1076␉␉␉// FIXME: handle 64-bit address correctly␊
1077␊
1078␉␉␉xsdt=(struct acpi_2_xsdt*) ((uint32_t)rsdp->XsdtAddress);␊
1079␉␉␉DBG("XSDT @%x;%x, Length=%d\n", (uint32_t)(rsdp->XsdtAddress>>32),(uint32_t)rsdp->XsdtAddress, xsdt->Length);␊
1080␊
1081␉␉␉if (xsdt && (uint64_t)rsdp->XsdtAddress<0xffffffff && xsdt->Length<0x10000)␊
1082␉␉␉{␊
1083␉␉␉␉uint64_t *xsdt_entries;␊
1084␉␉␉␉int xsdt_entries_num, i;␊
1085␉␉␉␉int dropoffset=0;␊
1086␊
1087␉␉␉␉// mozo: using malloc cos I didn't found how to free already allocated kernel memory␊
1088␉␉␉␉xsdt_mod=(struct acpi_2_xsdt*)malloc(xsdt->Length); ␊
1089␉␉␉␉memcpy(xsdt_mod, xsdt, xsdt->Length);␊
1090␊
1091␉␉␉␉rsdp_mod->XsdtAddress=(uint32_t)xsdt_mod;␊
1092␉␉␉␉xsdt_entries_num=(xsdt_mod->Length-sizeof(struct acpi_2_xsdt))/8;␊
1093␉␉␉␉xsdt_entries=(uint64_t *)(xsdt_mod+1);␊
1094␉␉␉␉for (i=0;i<xsdt_entries_num;i++)␊
1095␉␉␉␉{␊
1096␉␉␉␉␉char *table=(char *)((uint32_t)(xsdt_entries[i]));␊
1097␉␉␉␉␉if (!table)␊
1098␉␉␉␉␉{␊
1099␉␉␉␉␉␉continue;␊
1100␉␉␉␉␉}␊
1101␉␉␉␉␉xsdt_entries[i-dropoffset]=xsdt_entries[i];␊
1102␊
1103␉␉␉␉␉if (drop_ssdt && tableSign(table, "SSDT"))␊
1104␉␉␉␉␉{␊
1105␉␉␉␉␉␉dropoffset++;␊
1106␉␉␉␉␉␉continue;␊
1107␉␉␉␉␉}␊
1108␉␉␉␉␉if (tableSign(table, "DSDT"))␊
1109␉␉␉␉␉{␊
1110␉␉␉␉␉␉DBG("DSDT found\n");␊
1111␊
1112␉␉␉␉␉␉if (new_dsdt)␊
1113␉␉␉␉␉␉{␊
1114␉␉␉␉␉␉␉xsdt_entries[i-dropoffset]=(uint32_t)new_dsdt;␊
1115␉␉␉␉␉␉}␊
1116␊
1117␉␉␉␉␉␉DBG("TABLE %c%c%c%c@%x,",table[0],table[1],table[2],table[3],xsdt_entries[i]);␊
1118␉␉␉␉␉␉␊
1119␉␉␉␉␉␉continue;␊
1120␉␉␉␉␉}␊
1121␉␉␉␉␉if (tableSign(table, "FACP"))␊
1122␉␉␉␉␉{␊
1123␉␉␉␉␉␉struct acpi_2_fadt *fadt, *fadt_mod;␊
1124␉␉␉␉␉␉fadt=(struct acpi_2_fadt *)(uint32_t)xsdt_entries[i];␊
1125␊
1126␉␉␉␉␉␉DBG("FADT found @%x,%x, Length %d\n",(uint32_t)(xsdt_entries[i]>>32),fadt, ␊
1127␉␉␉␉␉␉␉fadt->Length);␊
1128␊
1129␉␉␉␉␉␉if (!fadt || (uint64_t)xsdt_entries[i] >= 0xffffffff || fadt->Length>0x10000)␊
1130␉␉␉␉␉␉{␊
1131␉␉␉␉␉␉␉verbose("FADT incorrect or after 4GB. Dropping XSDT\n");␊
1132␉␉␉␉␉␉␉goto drop_xsdt;␊
1133␉␉␉␉␉␉}␊
1134␊
1135␉␉␉␉␉␉fadt_mod = patch_fadt(fadt, new_dsdt);␊
1136␉␉␉␉␉␉xsdt_entries[i-dropoffset]=(uint32_t)fadt_mod;␊
1137␊
1138␉␉␉␉␉␉DBG("TABLE %c%c%c%c@%x,",table[0],table[1],table[2],table[3],xsdt_entries[i]);␊
1139␊
1140␉␉␉␉␉␉// Generate _CST SSDT␊
1141␉␉␉␉␉␉if (generate_cstates && (new_ssdt[ssdt_count] = generate_cst_ssdt(fadt_mod))) ␊
1142␉␉␉␉␉␉{␊
1143␉␉␉␉␉␉␉generate_cstates = false; // Generate SSDT only once!␊
1144␉␉␉␉␉␉␉ssdt_count++;␊
1145␉␉␉␉␉␉}␊
1146␊
1147␉␉␉␉␉␉// Generating _PSS SSDT␊
1148␉␉␉␉␉␉if (generate_pstates && (new_ssdt[ssdt_count] = generate_pss_ssdt((void*)fadt_mod->DSDT)))␊
1149␉␉␉␉␉␉{␊
1150␉␉␉␉␉␉␉generate_pstates = false; // Generate SSDT only once!␊
1151␉␉␉␉␉␉␉ssdt_count++;␊
1152␉␉␉␉␉␉}␊
1153␊
1154␉␉␉␉␉␉continue;␊
1155␉␉␉␉␉}␊
1156␊
1157␉␉␉␉␉DBG("TABLE %c%c%c%c@%x,",table[0],table[1],table[2],table[3],xsdt_entries[i]);␊
1158␊
1159␉␉␉␉}␊
1160␊
1161␉␉␉␉// Allocate xsdt in Kernel memory area␊
1162␉␉␉␉xsdt_mod->Length += 8*ssdt_count - 8*dropoffset;␊
1163␉␉␉␉struct acpi_2_xsdt *xsdt_copy = (struct acpi_2_xsdt *)AllocateKernelMemory(xsdt_mod->Length);␊
1164␉␉␉␉memcpy(xsdt_copy, xsdt_mod, xsdt_mod->Length);␊
1165␉␉␉␉free(xsdt_mod); xsdt_mod = xsdt_copy;␊
1166␉␉␉␉rsdp_mod->XsdtAddress=(uint32_t)xsdt_mod;␊
1167␉␉␉␉xsdt_entries_num=(xsdt_mod->Length-sizeof(struct acpi_2_xsdt))/8;␊
1168␉␉␉␉xsdt_entries=(uint64_t *)(xsdt_mod+1);␊
1169␊
1170␉␉␉␉// Mozodojo: Insert additional SSDTs into XSDT␊
1171␉␉␉␉if(ssdt_count>0)␊
1172␉␉␉␉{␊
1173␉␉␉␉␉int j;␊
1174␊
1175␉␉␉␉␉for (j=0; j<ssdt_count; j++)␊
1176␉␉␉␉␉␉xsdt_entries[i-dropoffset+j]=(uint32_t)new_ssdt[j];␊
1177␊
1178␉␉␉␉␉verbose("Added %d SSDT table(s) into XSDT\n", ssdt_count);␊
1179␊
1180␉␉␉␉}␊
1181␊
1182␉␉␉␉// Correct the checksum of XSDT␊
1183␉␉␉␉xsdt_mod->Checksum=0;␊
1184␉␉␉␉xsdt_mod->Checksum=256-checksum8(xsdt_mod,xsdt_mod->Length);␊
1185␉␉␉}␊
1186␉␉␉else␊
1187␉␉␉{␊
1188␉␉␉drop_xsdt:␊
1189␊
1190␉␉␉␉DBG("About to drop XSDT\n");␊
1191␊
1192␉␉␉␉/*FIXME: Now we just hope that if MacOS doesn't find XSDT it reverts to RSDT. ␊
1193␉␉␉␉ * A Better strategy would be to generate␊
1194␉␉␉␉ */␊
1195␊
1196␉␉␉␉rsdp_mod->XsdtAddress=0xffffffffffffffffLL;␊
1197␉␉␉␉verbose("XSDT not found or incorrect\n");␊
1198␉␉␉}␊
1199␉␉}␊
1200␊
1201␉␉// Correct the checksum of RSDP ␊
1202␊
1203␉␉DBG("RSDP: Original checksum %d, ", rsdp_mod->Checksum);␊
1204␊
1205␉␉rsdp_mod->Checksum=0;␊
1206␉␉rsdp_mod->Checksum=256-checksum8(rsdp_mod,20);␊
1207␊
1208␉␉DBG("New checksum %d\n", rsdp_mod->Checksum);␊
1209␊
1210␉␉if (version)␊
1211␉␉{␊
1212␉␉␉DBG("RSDP: Original extended checksum %d", rsdp_mod->ExtendedChecksum);␊
1213␊
1214␉␉␉rsdp_mod->ExtendedChecksum=0;␊
1215␉␉␉rsdp_mod->ExtendedChecksum=256-checksum8(rsdp_mod,rsdp_mod->Length);␊
1216␊
1217␉␉␉DBG("New extended checksum %d\n", rsdp_mod->ExtendedChecksum);␊
1218␊
1219␉␉}␊
1220␊
1221␉␉//verbose("Patched ACPI version %d DSDT\n", version+1);␊
1222␉␉if (version)␊
1223␉␉{␊
1224␉␉␉/* XXX aserebln why uint32 cast if pointer is uint64 ? */␊
1225␉␉␉acpi20_p = (uint32_t)rsdp_mod;␊
1226␉␉␉addConfigurationTable(&gEfiAcpi20TableGuid, &acpi20_p, "ACPI_20");␊
1227␉␉}␊
1228␉␉else␊
1229␉␉{␊
1230␉␉␉/* XXX aserebln why uint32 cast if pointer is uint64 ? */␊
1231␉␉␉acpi10_p = (uint32_t)rsdp_mod;␊
1232␉␉␉addConfigurationTable(&gEfiAcpiTableGuid, &acpi10_p, "ACPI");␊
1233␉␉}␊
1234␉}␊
1235#if DEBUG_ACPI␊
1236␉printf("Press a key to continue... (DEBUG_ACPI)\n");␊
1237␉getchar();␊
1238#endif␊
1239␉return 1;␊
1240}␊
1241

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