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Root/trunk/i386/libsaio/acpi_patcher.c

1/*␊
2 * Copyright 2008 mackerintel␊
3 */␊
4␊
5#include "libsaio.h"␊
6#include "boot.h"␊
7#include "bootstruct.h"␊
8#include "acpi.h"␊
9#include "efi_tables.h"␊
10#include "fake_efi.h"␊
11#include "acpi_patcher.h"␊
12#include "platform.h"␊
13#include "cpu.h"␊
14#include "aml_generator.h"␊
15␊
16#ifndef DEBUG_ACPI␊
17#define DEBUG_ACPI 0␊
18#endif␊
19␊
20#if DEBUG_ACPI==2␊
21#define DBG(x...) {printf(x); sleep(1);}␊
22#elif DEBUG_ACPI==1␊
23#define DBG(x...) printf(x)␊
24#else␊
25#define DBG(x...)␊
26#endif␊
27␊
28// Slice: New signature compare function␊
29boolean_t tableSign(char *table, const char *sgn)␊
30{␊
31␉int i;␊
32␉for (i=0; i<4; i++) {␊
33␉␉if ((table[i] &~0x20) != (sgn[i] &~0x20)) {␊
34␉␉␉return false;␊
35␉␉}␊
36␉}␊
37␉return true;␊
38}␊
39␊
40/* Gets the ACPI 1.0 RSDP address */␊
41static struct acpi_2_rsdp* getAddressOfAcpiTable()␊
42{␊
43 /* TODO: Before searching the BIOS space we are supposed to search the first 1K of the EBDA */␊
44␉␊
45 void *acpi_addr = (void*)ACPI_RANGE_START;␊
46 for(; acpi_addr <= (void*)ACPI_RANGE_END; acpi_addr += 16)␊
47 {␊
48 if(*(uint64_t *)acpi_addr == ACPI_SIGNATURE_UINT64_LE)␊
49 {␊
50 uint8_t csum = checksum8(acpi_addr, 20);␊
51 if(csum == 0)␊
52 {␊
53 // Only return the table if it is a true version 1.0 table (Revision 0)␊
54 if(((struct acpi_2_rsdp*)acpi_addr)->Revision == 0)␊
55 return acpi_addr;␊
56 }␊
57 }␊
58 }␊
59 return NULL;␊
60}␊
61␊
62/* Gets the ACPI 2.0 RSDP address */␊
63static struct acpi_2_rsdp* getAddressOfAcpi20Table()␊
64{␊
65 /* TODO: Before searching the BIOS space we are supposed to search the first 1K of the EBDA */␊
66␉␊
67 void *acpi_addr = (void*)ACPI_RANGE_START;␊
68 for(; acpi_addr <= (void*)ACPI_RANGE_END; acpi_addr += 16)␊
69 {␊
70 if(*(uint64_t *)acpi_addr == ACPI_SIGNATURE_UINT64_LE)␊
71 {␊
72 uint8_t csum = checksum8(acpi_addr, 20);␊
73␉␉␉␊
74 /* Only assume this is a 2.0 or better table if the revision is greater than 0␊
75 * NOTE: ACPI 3.0 spec only seems to say that 1.0 tables have revision 1␊
76 * and that the current revision is 2.. I am going to assume that rev > 0 is 2.0.␊
77 */␊
78␉␉␉␊
79 if(csum == 0 && (((struct acpi_2_rsdp*)acpi_addr)->Revision > 0))␊
80 {␊
81 uint8_t csum2 = checksum8(acpi_addr, sizeof(struct acpi_2_rsdp));␊
82 if(csum2 == 0)␊
83 return acpi_addr;␊
84 }␊
85 }␊
86 }␊
87 return NULL;␊
88}␊
89/** The folowing ACPI Table search algo. should be reused anywhere needed:*/␊
90int search_and_get_acpi_fd(const char * filename, const char ** outDirspec)␊
91{␊
92␉int fd = 0;␊
93␉char dirSpec[512];␊
94␉␊
95␉// Try finding 'filename' in the usual places␊
96␉// Start searching any potential location for ACPI Table␊
97␉sprintf(dirSpec, "%s", filename); ␊
98␉fd = open(dirSpec, 0);␊
99␉if (fd < 0)␊
100␉{␉␊
101␉␉sprintf(dirSpec, "/Extra/%s", filename); ␊
102␉␉fd = open(dirSpec, 0);␊
103␉␉if (fd < 0)␊
104␉␉{␊
105␉␉␉sprintf(dirSpec, "bt(0,0)/Extra/%s", filename);␊
106␉␉␉fd = open(dirSpec, 0);␊
107␉␉}␊
108␉}␊
109␊
110␉if (fd < 0)␊
111␉{␊
112␉␉// NOT FOUND:␊
113␉␉verbose("ACPI table not found: %s\n", filename);␊
114␉␉*dirSpec = '\0';␊
115␉}␊
116␊
117␉if (outDirspec) *outDirspec = dirSpec; ␊
118␉return fd;␊
119}␊
120␊
121␊
122void *loadACPITable (const char * filename)␊
123{␊
124␉void *tableAddr;␊
125␉const char * dirspec=NULL;␊
126␉␊
127␉int fd = search_and_get_acpi_fd(filename, &dirspec);␊
128␉␊
129␉if (fd>=0)␊
130␉{␊
131␉␉tableAddr=(void*)AllocateKernelMemory(file_size (fd));␊
132␉␉if (tableAddr)␊
133␉␉{␊
134␉␉␉if (read (fd, tableAddr, file_size (fd))!=file_size (fd))␊
135␉␉␉{␊
136␉␉␉␉printf("Couldn't read table %s\n",dirspec);␊
137␉␉␉␉free (tableAddr);␊
138␉␉␉␉close (fd);␊
139␉␉␉␉return NULL;␊
140␉␉␉}␊
141␉␉␉␊
142␉␉␉DBG("Table %s read and stored at: %x\n", dirspec, tableAddr);␊
143␉␉␉close (fd);␊
144␉␉␉return tableAddr;␊
145␉␉}␊
146␉␉close (fd);␊
147␉␉printf("Couldn't allocate memory for table \n", dirspec);␊
148␉} ␊
149␉//printf("Couldn't find table %s\n", filename);␊
150␉return NULL;␊
151}␊
152␊
153uint8_t␉acpi_cpu_count = 0;␊
154char* acpi_cpu_name[32];␊
155uint32_t acpi_cpu_p_blk = 0;␊
156␊
157void get_acpi_cpu_names(unsigned char* dsdt, uint32_t length)␊
158{␊
159␉uint32_t i;␊
160␉␊
161 DBG("start finding cpu names. length %d\n", length);␊
162 ␊
163␉for (i=0; i<length-7; i++) ␊
164␉{␊
165␉␉if (dsdt[i] == 0x5B && dsdt[i+1] == 0x83) // ProcessorOP␊
166␉␉{␊
167 DBG("dsdt: %x%x\n", dsdt[i], dsdt[i+1]);␊
168␊
169␉␉␉uint32_t offset = i + 3 + (dsdt[i+2] >> 6);␊
170␉␉␉␊
171␉␉␉bool add_name = true;␊
172␊
173␉␉␉uint8_t j;␊
174␉␉␉␊
175␉␉␉for (j=0; j<4; j++) ␊
176␉␉␉{␊
177␉␉␉␉char c = dsdt[offset+j];␊
178␉␉␉␉␊
179␉␉␉␉if (!aml_isvalidchar(c)) ␊
180␉␉␉␉{␊
181␉␉␉␉␉add_name = false;␊
182␉␉␉␉␉verbose("Invalid character found in ProcessorOP 0x%x!\n", c);␊
183␉␉␉␉␉break;␊
184␉␉␉␉}␊
185␉␉␉}␊
186␉␉␉␊
187␉␉␉if (add_name) ␊
188␉␉␉{␊
189␉␉␉␉acpi_cpu_name[acpi_cpu_count] = malloc(4);␊
190␉␉␉␉memcpy(acpi_cpu_name[acpi_cpu_count], dsdt+offset, 4);␊
191␉␉␉␉i = offset + 5;␊
192 ␊
193 if (acpi_cpu_count == 0)␊
194 acpi_cpu_p_blk = dsdt[i] | (dsdt[i+1] << 8);␊
195␉␉␉␉␊
196␉␉␉␉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]);␊
197␉␉␉␉␊
198␉␉␉␉if (++acpi_cpu_count == 32) return;␊
199␉␉␉}␊
200␉␉}␊
201␉}␊
202 ␊
203 DBG("end finding cpu names: cpu names found: %d\n", acpi_cpu_count);␊
204}␊
205␊
206struct acpi_2_ssdt *generate_cst_ssdt(struct acpi_2_fadt* fadt)␊
207{␊
208␉char ssdt_header[] =␊
209␉{␊
210␉␉0x53, 0x53, 0x44, 0x54, 0xE7, 0x00, 0x00, 0x00, /* SSDT.... */␊
211␉␉0x01, 0x17, 0x50, 0x6D, 0x52, 0x65, 0x66, 0x41, /* ..PmRefA */␊
212␉␉0x43, 0x70, 0x75, 0x43, 0x73, 0x74, 0x00, 0x00, /* CpuCst.. */␊
213␉␉0x00, 0x10, 0x00, 0x00, 0x49, 0x4E, 0x54, 0x4C, /* ....INTL */␊
214␉␉0x31, 0x03, 0x10, 0x20␉␉␉␉␉␉␉/* 1.._␉␉*/␊
215␉};␊
216␉␊
217␉char resource_template_register_fixedhw[] =␊
218␉{␊
219␉␉0x11, 0x14, 0x0A, 0x11, 0x82, 0x0C, 0x00, 0x7F,␊
220␉␉0x01, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,␊
221␉␉0x00, 0x00, 0x01, 0x79, 0x00␊
222␉};␊
223␉␊
224␉char resource_template_register_systemio[] =␊
225␉{␊
226␉␉0x11, 0x14, 0x0A, 0x11, 0x82, 0x0C, 0x00, 0x01,␊
227␉␉0x08, 0x00, 0x00, 0x15, 0x04, 0x00, 0x00, 0x00,␊
228␉␉0x00, 0x00, 0x00, 0x79, 0x00,␊
229␉};␊
230␉␊
231␉if (Platform.CPU.Vendor != 0x756E6547) {␊
232␉␉verbose ("Not an Intel platform: C-States will not be generated !!!\n");␊
233␉␉return NULL;␊
234␉}␊
235␉␊
236␉if (fadt == NULL) {␊
237␉␉verbose ("FACP not exists: C-States will not be generated !!!\n");␊
238␉␉return NULL;␊
239␉}␊
240␉␊
241␉struct acpi_2_dsdt* dsdt = (void*)fadt->DSDT;␊
242␉␊
243␉if (dsdt == NULL) {␊
244␉␉verbose ("DSDT not found: C-States will not be generated !!!\n");␊
245␉␉return NULL;␊
246␉}␊
247␉␊
248␉if (acpi_cpu_count == 0)␊
249␉␉get_acpi_cpu_names((void*)dsdt, dsdt->Length);␊
250␉␊
251␉if (acpi_cpu_count > 0)␊
252␉{␊
253␉␉bool c2_enabled = false;␊
254␉␉bool c3_enabled = false;␊
255␉␉bool c4_enabled = false;␊
256␉␉bool cst_using_systemio = false;␊
257␉␉␊
258␉␉getBoolForKey(kEnableC2State, &c2_enabled, &bootInfo->chameleonConfig);␊
259␉␉getBoolForKey(kEnableC3State, &c3_enabled, &bootInfo->chameleonConfig);␊
260␉␉getBoolForKey(kEnableC4State, &c4_enabled, &bootInfo->chameleonConfig);␊
261␉␉getBoolForKey(kCSTUsingSystemIO, &cst_using_systemio, &bootInfo->chameleonConfig);␊
262␉␉␊
263␉␉c2_enabled = c2_enabled | (fadt->C2_Latency < 100);␊
264␉␉c3_enabled = c3_enabled | (fadt->C3_Latency < 1000);␊
265␉␉␊
266␉␉unsigned char cstates_count = 1 + (c2_enabled ? 1 : 0) + (c3_enabled ? 1 : 0);␊
267␉␉␊
268␉␉struct aml_chunk* root = aml_create_node(NULL);␊
269␉␉aml_add_buffer(root, ssdt_header, sizeof(ssdt_header)); // SSDT header␊
270␉␉struct aml_chunk* scop = aml_add_scope(root, "\\_PR_");␊
271␉␉struct aml_chunk* name = aml_add_name(scop, "CST_");␊
272␉␉struct aml_chunk* pack = aml_add_package(name);␊
273␉␉aml_add_byte(pack, cstates_count);␊
274␉␉␊
275␉␉struct aml_chunk* tmpl = aml_add_package(pack);␊
276␉␉if (cst_using_systemio)␊
277␉␉{␊
278␉␉␉// C1␊
279␉␉␉resource_template_register_fixedhw[8] = 0x00;␊
280␉␉␉resource_template_register_fixedhw[9] = 0x00;␊
281␉␉␉resource_template_register_fixedhw[18] = 0x00;␊
282␉␉␉aml_add_buffer(tmpl, resource_template_register_fixedhw, sizeof(resource_template_register_fixedhw));␊
283␉␉␉aml_add_byte(tmpl, 0x01); // C1␊
284␉␉␉aml_add_word(tmpl, 0x0001); // Latency␊
285␉␉␉aml_add_dword(tmpl, 0x000003e8); // Power␊
286␉␉␉␊
287␉␉␉uint8_t p_blk_lo, p_blk_hi;␊
288␉␉␉␊
289␉␉␉if (c2_enabled) // C2␊
290␉␉␉{␊
291␉␉␉␉p_blk_lo = acpi_cpu_p_blk + 4;␊
292␉␉␉␉p_blk_hi = (acpi_cpu_p_blk + 4) >> 8;␊
293␉␉␉␉␊
294␉␉␉␉tmpl = aml_add_package(pack);␊
295␉␉␉␉resource_template_register_systemio[11] = p_blk_lo; // C2␊
296␉␉␉␉resource_template_register_systemio[12] = p_blk_hi; // C2␊
297␉␉␉␉aml_add_buffer(tmpl, resource_template_register_systemio, sizeof(resource_template_register_systemio));␊
298␉␉␉␉aml_add_byte(tmpl, 0x02); // C2␊
299␉␉␉␉aml_add_word(tmpl, 0x0040); // Latency␊
300␉␉␉␉aml_add_dword(tmpl, 0x000001f4); // Power␊
301␉␉␉}␊
302␉␉␉␊
303␉␉␉if (c4_enabled) // C4␊
304␉␉␉{␊
305␉␉␉␉p_blk_lo = acpi_cpu_p_blk + 5;␊
306␉␉␉␉p_blk_hi = (acpi_cpu_p_blk + 5) >> 8;␊
307␉␉␉␉␊
308␉␉␉␉tmpl = aml_add_package(pack);␊
309␉␉␉␉resource_template_register_systemio[11] = p_blk_lo; // C4␊
310␉␉␉␉resource_template_register_systemio[12] = p_blk_hi; // C4␊
311␉␉␉␉aml_add_buffer(tmpl, resource_template_register_systemio, sizeof(resource_template_register_systemio));␊
312␉␉␉␉aml_add_byte(tmpl, 0x04); // C4␊
313␉␉␉␉aml_add_word(tmpl, 0x0080); // Latency␊
314␉␉␉␉aml_add_dword(tmpl, 0x000000C8); // Power␊
315␉␉␉}␊
316␉␉␉else if (c3_enabled) // C3␊
317␉␉␉{␊
318␉␉␉␉p_blk_lo = acpi_cpu_p_blk + 5;␊
319␉␉␉␉p_blk_hi = (acpi_cpu_p_blk + 5) >> 8;␊
320␉␉␉␉␊
321␉␉␉␉tmpl = aml_add_package(pack);␊
322␉␉␉␉resource_template_register_systemio[11] = p_blk_lo; // C3␊
323␉␉␉␉resource_template_register_systemio[12] = p_blk_hi; // C3␊
324␉␉␉␉aml_add_buffer(tmpl, resource_template_register_systemio, sizeof(resource_template_register_systemio));␊
325␉␉␉␉aml_add_byte(tmpl, 0x03);␉␉␉// C3␊
326␉␉␉␉aml_add_word(tmpl, 0x0060);␉␉␉// Latency␊
327␉␉␉␉aml_add_dword(tmpl, 0x0000015e);␉// Power␊
328␉␉␉}␊
329␉␉}␊
330␉␉else␊
331␉␉{␊
332␉␉␉// C1␊
333␉␉␉resource_template_register_fixedhw[11] = 0x00; // C1␊
334␉␉␉aml_add_buffer(tmpl, resource_template_register_fixedhw, sizeof(resource_template_register_fixedhw));␊
335␉␉␉aml_add_byte(tmpl, 0x01);␉␉␉// C1␊
336␉␉␉aml_add_word(tmpl, 0x0001);␉␉␉// Latency␊
337␉␉␉aml_add_dword(tmpl, 0x000003e8);␉// Power␊
338␉␉␉␊
339␉␉␉resource_template_register_fixedhw[18] = 0x03;␊
340␉␉␉␊
341␉␉␉if (c2_enabled) // C2␊
342␉␉␉{␊
343␉␉␉␉tmpl = aml_add_package(pack);␊
344␉␉␉␉resource_template_register_fixedhw[11] = 0x10; // C2␊
345␉␉␉␉aml_add_buffer(tmpl, resource_template_register_fixedhw, sizeof(resource_template_register_fixedhw));␊
346␉␉␉␉aml_add_byte(tmpl, 0x02);␉␉␉// C2␊
347␉␉␉␉aml_add_word(tmpl, 0x0040);␉␉␉// Latency␊
348␉␉␉␉aml_add_dword(tmpl, 0x000001f4);␉// Power␊
349␉␉␉}␊
350␉␉␉␊
351␉␉␉if (c4_enabled) // C4␊
352␉␉␉{␊
353␉␉␉␉tmpl = aml_add_package(pack);␊
354␉␉␉␉resource_template_register_fixedhw[11] = 0x30; // C4␊
355␉␉␉␉aml_add_buffer(tmpl, resource_template_register_fixedhw, sizeof(resource_template_register_fixedhw));␊
356␉␉␉␉aml_add_byte(tmpl, 0x04);␉␉␉// C4␊
357␉␉␉␉aml_add_word(tmpl, 0x0080);␉␉␉// Latency␊
358␉␉␉␉aml_add_dword(tmpl, 0x000000C8);␉// Power␊
359␉␉␉}␊
360␉␉␉else if (c3_enabled)␊
361␉␉␉{␊
362␉␉␉␉tmpl = aml_add_package(pack);␊
363␉␉␉␉resource_template_register_fixedhw[11] = 0x20; // C3␊
364␉␉␉␉aml_add_buffer(tmpl, resource_template_register_fixedhw, sizeof(resource_template_register_fixedhw));␊
365␉␉␉␉aml_add_byte(tmpl, 0x03);␉␉␉// C3␊
366␉␉␉␉aml_add_word(tmpl, 0x0060);␉␉␉// Latency␊
367␉␉␉␉aml_add_dword(tmpl, 0x0000015e);␉// Power␊
368␉␉␉}␊
369␉␉}␊
370␉␉␊
371␉␉// Aliaces␊
372␉␉int i;␊
373␉␉for (i = 0; i < acpi_cpu_count; i++) ␊
374␉␉{␊
375␉␉␉char name[9];␊
376␉␉␉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]);␊
377␉␉␉␊
378␉␉␉scop = aml_add_scope(root, name);␊
379␉␉␉␉aml_add_alias(scop, "CST_", "_CST");␊
380␉␉}␊
381␉␉␊
382␉␉aml_calculate_size(root);␊
383␉␉␊
384␉␉struct acpi_2_ssdt *ssdt = (struct acpi_2_ssdt *)AllocateKernelMemory(root->Size);␊
385␉␉␊
386␉␉aml_write_node(root, (void*)ssdt, 0);␊
387␉␉␊
388␉␉ssdt->Length = root->Size;␊
389␉␉ssdt->Checksum = 0;␊
390␉␉ssdt->Checksum = 256 - checksum8(ssdt, ssdt->Length);␊
391␉␉␊
392␉␉aml_destroy_node(root);␊
393␉␉␊
394␉␉// dumpPhysAddr("C-States SSDT content: ", ssdt, ssdt->Length);␊
395␉␉␊
396␉␉verbose ("SSDT with CPU C-States generated successfully\n");␊
397␉␉␊
398␉␉return ssdt;␊
399␉}␊
400␉else␊
401␉{␊
402␉␉verbose ("ACPI CPUs not found: C-States not generated !!!\n");␊
403␉}␊
404␉␊
405␉return NULL;␊
406}␊
407␊
408struct acpi_2_ssdt *generate_pss_ssdt(struct acpi_2_dsdt* dsdt)␊
409{␉␊
410␉char ssdt_header[] =␊
411␉{␊
412␉␉0x53, 0x53, 0x44, 0x54, 0x7E, 0x00, 0x00, 0x00, /* SSDT.... */␊
413␉␉0x01, 0x6A, 0x50, 0x6D, 0x52, 0x65, 0x66, 0x00, /* ..PmRef. */␊
414␉␉0x43, 0x70, 0x75, 0x50, 0x6D, 0x00, 0x00, 0x00, /* CpuPm... */␊
415␉␉0x00, 0x30, 0x00, 0x00, 0x49, 0x4E, 0x54, 0x4C, /* .0..INTL */␊
416␉␉0x31, 0x03, 0x10, 0x20,␉␉␉␉␉␉␉/* 1.._␉␉*/␊
417␉};␊
418␉␊
419␉if (Platform.CPU.Vendor != 0x756E6547) {␊
420␉␉verbose ("Not an Intel platform: P-States will not be generated !!!\n");␊
421␉␉return NULL;␊
422␉}␊
423␉␊
424␉if (!(Platform.CPU.Features & CPU_FEATURE_MSR)) {␊
425␉␉verbose ("Unsupported CPU: P-States will not be generated !!! No MSR support\n");␊
426␉␉return NULL;␊
427␉}␊
428␉␊
429␉if (acpi_cpu_count == 0) ␊
430␉␉get_acpi_cpu_names((void*)dsdt, dsdt->Length);␊
431␉␊
432␉if (acpi_cpu_count > 0) ␊
433␉{␊
434␉␉struct p_state initial, maximum, minimum, p_states[32];␊
435␉␉uint8_t p_states_count = 0;␉␉␊
436␉␉␊
437␉␉// Retrieving P-States, ported from code by superhai (c)␊
438␉␉switch (Platform.CPU.Family) {␊
439␉␉␉case 0x06: ␊
440␉␉␉{␊
441␉␉␉␉switch (Platform.CPU.Model) ␊
442␉␉␉␉{␊
443␉␉␉␉␉case CPU_MODEL_DOTHAN:␉// Intel Pentium M␊
444␉␉␉␉␉case CPU_MODEL_YONAH:␉// Intel Mobile Core Solo, Duo␊
445␉␉␉␉␉case CPU_MODEL_MEROM:␉// Intel Mobile Core 2 Solo, Duo, Xeon 30xx, Xeon 51xx, Xeon X53xx, Xeon E53xx, Xeon X32xx␊
446␉␉␉␉␉case CPU_MODEL_PENRYN:␉// Intel Core 2 Solo, Duo, Quad, Extreme, Xeon X54xx, Xeon X33xx␊
447␉␉␉␉␉case CPU_MODEL_ATOM:␉// Intel Atom (45nm)␊
448␉␉␉␉␉{␊
449␉␉␉␉␉␉bool cpu_dynamic_fsb = false;␊
450␉␉␉␉␉␉␊
451␉␉␉␉␉␉if (rdmsr64(MSR_IA32_EXT_CONFIG) & (1 << 27)) ␊
452␉␉␉␉␉␉{␊
453␉␉␉␉␉␉␉wrmsr64(MSR_IA32_EXT_CONFIG, (rdmsr64(MSR_IA32_EXT_CONFIG) | (1 << 28))); ␊
454␉␉␉␉␉␉␉delay(1);␊
455␉␉␉␉␉␉␉cpu_dynamic_fsb = rdmsr64(MSR_IA32_EXT_CONFIG) & (1 << 28);␊
456␉␉␉␉␉␉}␊
457␉␉␉␉␉␉␊
458␉␉␉␉␉␉bool cpu_noninteger_bus_ratio = (rdmsr64(MSR_IA32_PERF_STATUS) & (1ULL << 46));␊
459␉␉␉␉␉␉␊
460␉␉␉␉␉␉initial.Control = rdmsr64(MSR_IA32_PERF_STATUS);␊
461␉␉␉␉␉␉␊
462␉␉␉␉␉␉maximum.Control = ((rdmsr64(MSR_IA32_PERF_STATUS) >> 32) & 0x1F3F) | (0x4000 * cpu_noninteger_bus_ratio);␊
463␉␉␉␉␉␉maximum.CID = ((maximum.FID & 0x1F) << 1) | cpu_noninteger_bus_ratio;␊
464␉␉␉␉␉␉␊
465␉␉␉␉␉␉minimum.FID = ((rdmsr64(MSR_IA32_PERF_STATUS) >> 24) & 0x1F) | (0x80 * cpu_dynamic_fsb);␊
466␉␉␉␉␉␉minimum.VID = ((rdmsr64(MSR_IA32_PERF_STATUS) >> 48) & 0x3F);␊
467␉␉␉␉␉␉␊
468␉␉␉␉␉␉if (minimum.FID == 0) ␊
469␉␉␉␉␉␉{␊
470␉␉␉␉␉␉␉uint64_t msr;␊
471␉␉␉␉␉␉␉uint8_t i;␊
472␉␉␉␉␉␉␉// Probe for lowest fid␊
473␉␉␉␉␉␉␉for (i = maximum.FID; i >= 0x6; i--) ␊
474␉␉␉␉␉␉␉{␊
475␉␉␉␉␉␉␉␉msr = rdmsr64(MSR_IA32_PERF_CONTROL);␊
476␉␉␉␉␉␉␉␉wrmsr64(MSR_IA32_PERF_CONTROL, (msr & 0xFFFFFFFFFFFF0000ULL) | (i << 8) | minimum.VID);␊
477␉␉␉␉␉␉␉␉intel_waitforsts();␊
478␉␉␉␉␉␉␉␉minimum.FID = (rdmsr64(MSR_IA32_PERF_STATUS) >> 8) & 0x1F; ␊
479␉␉␉␉␉␉␉␉delay(1);␊
480␉␉␉␉␉␉␉}␊
481␉␉␉␉␉␉␉␊
482␉␉␉␉␉␉␉msr = rdmsr64(MSR_IA32_PERF_CONTROL);␊
483␉␉␉␉␉␉␉wrmsr64(MSR_IA32_PERF_CONTROL, (msr & 0xFFFFFFFFFFFF0000ULL) | (maximum.FID << 8) | maximum.VID);␊
484␉␉␉␉␉␉␉intel_waitforsts();␊
485␉␉␉␉␉␉}␊
486␉␉␉␉␉␉␊
487␉␉␉␉␉␉if (minimum.VID == maximum.VID) ␊
488␉␉␉␉␉␉{␉␊
489␉␉␉␉␉␉␉uint64_t msr;␊
490␉␉␉␉␉␉␉uint8_t i;␊
491␉␉␉␉␉␉␉// Probe for lowest vid␊
492␉␉␉␉␉␉␉for (i = maximum.VID; i > 0xA; i--) ␊
493␉␉␉␉␉␉␉{␊
494␉␉␉␉␉␉␉␉msr = rdmsr64(MSR_IA32_PERF_CONTROL);␊
495␉␉␉␉␉␉␉␉wrmsr64(MSR_IA32_PERF_CONTROL, (msr & 0xFFFFFFFFFFFF0000ULL) | (minimum.FID << 8) | i);␊
496␉␉␉␉␉␉␉␉intel_waitforsts();␊
497␉␉␉␉␉␉␉␉minimum.VID = rdmsr64(MSR_IA32_PERF_STATUS) & 0x3F; ␊
498␉␉␉␉␉␉␉␉delay(1);␊
499␉␉␉␉␉␉␉}␊
500␉␉␉␉␉␉␉␊
501␉␉␉␉␉␉␉msr = rdmsr64(MSR_IA32_PERF_CONTROL);␊
502␉␉␉␉␉␉␉wrmsr64(MSR_IA32_PERF_CONTROL, (msr & 0xFFFFFFFFFFFF0000ULL) | (maximum.FID << 8) | maximum.VID);␊
503␉␉␉␉␉␉␉intel_waitforsts();␊
504␉␉␉␉␉␉}␊
505␉␉␉␉␉␉␊
506␉␉␉␉␉␉minimum.CID = ((minimum.FID & 0x1F) << 1) >> cpu_dynamic_fsb;␊
507␉␉␉␉␉␉␊
508␉␉␉␉␉␉// Sanity check␊
509␉␉␉␉␉␉if (maximum.CID < minimum.CID) ␊
510␉␉␉␉␉␉{␊
511␉␉␉␉␉␉␉DBG("Insane FID values!");␊
512␉␉␉␉␉␉␉p_states_count = 0;␊
513␉␉␉␉␉␉}␊
514␉␉␉␉␉␉else␊
515␉␉␉␉␉␉{␊
516␉␉␉␉␉␉␉// Finalize P-States␊
517␉␉␉␉␉␉␉// Find how many P-States machine supports␊
518␉␉␉␉␉␉␉p_states_count = maximum.CID - minimum.CID + 1;␊
519␉␉␉␉␉␉␉␊
520␉␉␉␉␉␉␉if (p_states_count > 32) ␊
521␉␉␉␉␉␉␉␉p_states_count = 32;␊
522␉␉␉␉␉␉␉␊
523␉␉␉␉␉␉␉uint8_t vidstep;␊
524␉␉␉␉␉␉␉uint8_t i = 0, u, invalid = 0;␊
525␉␉␉␉␉␉␉␊
526␉␉␉␉␉␉␉vidstep = ((maximum.VID << 2) - (minimum.VID << 2)) / (p_states_count - 1);␊
527␉␉␉␉␉␉␉␊
528␉␉␉␉␉␉␉for (u = 0; u < p_states_count; u++) ␊
529␉␉␉␉␉␉␉{␊
530␉␉␉␉␉␉␉␉i = u - invalid;␊
531␉␉␉␉␉␉␉␉␊
532␉␉␉␉␉␉␉␉p_states[i].CID = maximum.CID - u;␊
533␉␉␉␉␉␉␉␉p_states[i].FID = (p_states[i].CID >> 1);␊
534␉␉␉␉␉␉␉␉␊
535␉␉␉␉␉␉␉␉if (p_states[i].FID < 0x6) ␊
536␉␉␉␉␉␉␉␉{␊
537␉␉␉␉␉␉␉␉␉if (cpu_dynamic_fsb) ␊
538␉␉␉␉␉␉␉␉␉␉p_states[i].FID = (p_states[i].FID << 1) | 0x80;␊
539␉␉␉␉␉␉␉␉} ␊
540␉␉␉␉␉␉␉␉else if (cpu_noninteger_bus_ratio) ␊
541␉␉␉␉␉␉␉␉{␊
542␉␉␉␉␉␉␉␉␉p_states[i].FID = p_states[i].FID | (0x40 * (p_states[i].CID & 0x1));␊
543␉␉␉␉␉␉␉␉}␊
544␉␉␉␉␉␉␉␉␊
545␉␉␉␉␉␉␉␉if (i && p_states[i].FID == p_states[i-1].FID)␊
546␉␉␉␉␉␉␉␉␉invalid++;␊
547␉␉␉␉␉␉␉␉␊
548␉␉␉␉␉␉␉␉p_states[i].VID = ((maximum.VID << 2) - (vidstep * u)) >> 2;␊
549␉␉␉␉␉␉␉␉␊
550␉␉␉␉␉␉␉␉uint32_t multiplier = p_states[i].FID & 0x1f;␉␉// = 0x08␊
551␉␉␉␉␉␉␉␉bool half = p_states[i].FID & 0x40;␉␉␉␉␉// = 0x01␊
552␉␉␉␉␉␉␉␉bool dfsb = p_states[i].FID & 0x80;␉␉␉␉␉// = 0x00␊
553␉␉␉␉␉␉␉␉uint32_t fsb = Platform.CPU.FSBFrequency / 1000000; // = 400␊
554␉␉␉␉␉␉␉␉uint32_t halffsb = (fsb + 1) >> 1;␉␉␉␉␉// = 200␊
555␉␉␉␉␉␉␉␉uint32_t frequency = (multiplier * fsb);␉␉␉// = 3200␊
556␉␉␉␉␉␉␉␉␊
557␉␉␉␉␉␉␉␉p_states[i].Frequency = (frequency + (half * halffsb)) >> dfsb;␉// = 3200 + 200 = 3400␊
558␉␉␉␉␉␉␉}␊
559␉␉␉␉␉␉␉␊
560␉␉␉␉␉␉␉p_states_count -= invalid;␊
561␉␉␉␉␉␉}␊
562␉␉␉␉␉␉␊
563␉␉␉␉␉␉break;␊
564␉␉␉␉␉} ␊
565␉␉␉␉␉case CPU_MODEL_FIELDS:␉␉// Intel Core i5, i7, Xeon X34xx LGA1156 (45nm)␊
566␉␉␉␉␉case CPU_MODEL_DALES:␉␉␊
567␉␉␉␉␉case CPU_MODEL_DALES_32NM:␉// Intel Core i3, i5 LGA1156 (32nm)␊
568␉␉␉␉␉case CPU_MODEL_NEHALEM:␉␉// Intel Core i7, Xeon W35xx, Xeon X55xx, Xeon E55xx LGA1366 (45nm)␊
569␉␉␉␉␉case CPU_MODEL_NEHALEM_EX:␉// Intel Xeon X75xx, Xeon X65xx, Xeon E75xx, Xeon E65xx␊
570␉␉␉␉␉case CPU_MODEL_WESTMERE:␉// Intel Core i7, Xeon X56xx, Xeon E56xx, Xeon W36xx LGA1366 (32nm) 6 Core␊
571␉␉␉␉␉case CPU_MODEL_WESTMERE_EX:␉// Intel Xeon E7␊
572␉␉␉␉␉case CPU_MODEL_SANDYBRIDGE:␉// Intel Core i3, i5, i7 LGA1155 (32nm)␊
573␉␉␉␉␉case CPU_MODEL_IVYBRIDGE:␉// Intel Core i3, i5, i7 LGA1155 (22nm)␊
574␉␉␉␉␉case CPU_MODEL_JAKETOWN:␉// Intel Core i7, Xeon E5 LGA2011 (32nm)␊
575␊
576␉␉␉␉␉{␊
577␉␉␉␉␉␉if ((Platform.CPU.Model == CPU_MODEL_SANDYBRIDGE) ||␊
578 (Platform.CPU.Model == CPU_MODEL_JAKETOWN))␊
579 {␊
580 maximum.Control = (rdmsr64(MSR_IA32_PERF_STATUS) >> 8) & 0xff;␊
581 } else {␊
582 maximum.Control = rdmsr64(MSR_IA32_PERF_STATUS) & 0xff; ␊
583 }␊
584 minimum.Control = (rdmsr64(MSR_PLATFORM_INFO) >> 40) & 0xff;␊
585␉␉␉␉␉␉␊
586␉␉␉␉␉␉verbose("P-States: min 0x%x, max 0x%x\n", minimum.Control, maximum.Control);␉␉␉␊
587␉␉␉␉␉␉␊
588␉␉␉␉␉␉// Sanity check␊
589␉␉␉␉␉␉if (maximum.Control < minimum.Control) ␊
590␉␉␉␉␉␉{␊
591␉␉␉␉␉␉␉DBG("Insane control values!");␊
592␉␉␉␉␉␉␉p_states_count = 0;␊
593␉␉␉␉␉␉}␊
594␉␉␉␉␉␉else␊
595␉␉␉␉␉␉{␊
596␉␉␉␉␉␉␉uint8_t i;␊
597␉␉␉␉␉␉␉p_states_count = 0;␊
598␉␉␉␉␉␉␉␊
599␉␉␉␉␉␉␉for (i = maximum.Control; i >= minimum.Control; i--) ␊
600␉␉␉␉␉␉␉{␊
601␉␉␉␉␉␉␉␉p_states[p_states_count].Control = i;␊
602␉␉␉␉␉␉␉␉p_states[p_states_count].CID = p_states[p_states_count].Control << 1;␊
603␉␉␉␉␉␉␉␉p_states[p_states_count].Frequency = (Platform.CPU.FSBFrequency / 1000000) * i;␊
604␉␉␉␉␉␉␉␉p_states_count++;␊
605␉␉␉␉␉␉␉}␊
606␉␉␉␉␉␉}␊
607␉␉␉␉␉␉␊
608␉␉␉␉␉␉break;␊
609␉␉␉␉␉}␉␊
610␉␉␉␉␉default:␊
611␉␉␉␉␉␉verbose ("Unsupported CPU: P-States not generated !!! Unknown CPU Type\n");␊
612␉␉␉␉␉␉break;␊
613␉␉␉␉}␊
614␉␉␉}␊
615␉␉}␊
616␉␉␊
617␉␉// Generating SSDT␊
618␉␉if (p_states_count > 0) ␊
619␉␉{␉␊
620␉␉␉int i;␊
621␉␉␉␊
622␉␉␉struct aml_chunk* root = aml_create_node(NULL);␊
623␉␉␉␉aml_add_buffer(root, ssdt_header, sizeof(ssdt_header)); // SSDT header␊
624␉␉␉␉␉struct aml_chunk* scop = aml_add_scope(root, "\\_PR_");␊
625␉␉␉␉␉␉struct aml_chunk* name = aml_add_name(scop, "PSS_");␊
626␉␉␉␉␉␉␉struct aml_chunk* pack = aml_add_package(name);␊
627␉␉␉␊
628␉␉␉␉␉␉␉␉for (i = 0; i < p_states_count; i++) ␊
629␉␉␉␉␉␉␉␉{␊
630␉␉␉␉␉␉␉␉␉struct aml_chunk* pstt = aml_add_package(pack);␊
631␉␉␉␉␉␉␉␉␉␊
632␉␉␉␉␉␉␉␉␉aml_add_dword(pstt, p_states[i].Frequency);␊
633␉␉␉␉␉␉␉␉␉aml_add_dword(pstt, 0x00000000); // Power␊
634␉␉␉␉␉␉␉␉␉aml_add_dword(pstt, 0x0000000A); // Latency␊
635␉␉␉␉␉␉␉␉␉aml_add_dword(pstt, 0x0000000A); // Latency␊
636␉␉␉␉␉␉␉␉␉aml_add_dword(pstt, p_states[i].Control);␊
637␉␉␉␉␉␉␉␉␉aml_add_dword(pstt, i+1); // Status␊
638␉␉␉␉␉␉␉␉}␊
639␉␉␉␉␊
640␉␉␉// Add aliaces␊
641␉␉␉for (i = 0; i < acpi_cpu_count; i++) ␊
642␉␉␉{␊
643␉␉␉␉char name[9];␊
644␉␉␉␉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]);␊
645␉␉␉␉␊
646␉␉␉␉scop = aml_add_scope(root, name);␊
647␉␉␉␉aml_add_alias(scop, "PSS_", "_PSS");␊
648␉␉␉}␊
649␉␉␉␊
650␉␉␉aml_calculate_size(root);␊
651␉␉␉␊
652␉␉␉struct acpi_2_ssdt *ssdt = (struct acpi_2_ssdt *)AllocateKernelMemory(root->Size);␊
653␉␉␉␊
654␉␉␉aml_write_node(root, (void*)ssdt, 0);␊
655␉␉␉␊
656␉␉␉ssdt->Length = root->Size;␊
657␉␉␉ssdt->Checksum = 0;␊
658␉␉␉ssdt->Checksum = 256 - checksum8(ssdt, ssdt->Length);␊
659␉␉␉␊
660␉␉␉aml_destroy_node(root);␊
661␉␉␉␊
662␉␉␉//dumpPhysAddr("P-States SSDT content: ", ssdt, ssdt->Length);␊
663␉␉␉␊
664␉␉␉verbose ("SSDT with CPU P-States generated successfully\n");␊
665␉␉␉␊
666␉␉␉return ssdt;␊
667␉␉}␊
668␉}␊
669␉else ␊
670␉{␊
671␉␉verbose ("ACPI CPUs not found: P-States not generated !!!\n");␊
672␉}␊
673␉␊
674␉return NULL;␊
675}␊
676␊
677struct acpi_2_fadt *patch_fadt(struct acpi_2_fadt *fadt, struct acpi_2_dsdt *new_dsdt)␊
678{␊
679␉extern void setupSystemType(); ␊
680␉␊
681␉struct acpi_2_fadt *fadt_mod;␊
682␉bool fadt_rev2_needed = false;␊
683␉bool fix_restart;␊
684␉bool fix_restart_ps2;␊
685␉const char * value;␊
686␉␊
687␉// Restart Fix␊
688␉if (Platform.CPU.Vendor == 0x756E6547) {␉/* Intel */␊
689␉␉fix_restart = true;␊
690␉␉fix_restart_ps2 = false;␊
691␉␉if ( getBoolForKey(kPS2RestartFix, &fix_restart_ps2, &bootInfo->chameleonConfig) && fix_restart_ps2)␊
692␉␉␉fix_restart = true;␊
693␉␉else ␊
694␉␉␉getBoolForKey(kRestartFix, &fix_restart, &bootInfo->chameleonConfig);␊
695␉␉␊
696␉} else {␊
697␉␉verbose ("Not an Intel platform: Restart Fix not applied !!!\n");␊
698␉␉fix_restart = false;␊
699␉}␊
700␉␊
701␉if (fix_restart) fadt_rev2_needed = true;␊
702␉␊
703␉// Allocate new fadt table␊
704␉if (fadt->Length < 0x84 && fadt_rev2_needed)␊
705␉{␊
706␉␉fadt_mod=(struct acpi_2_fadt *)AllocateKernelMemory(0x84);␊
707␉␉memcpy(fadt_mod, fadt, fadt->Length);␊
708␉␉fadt_mod->Length = 0x84;␊
709␉␉fadt_mod->Revision = 0x02; // FADT rev 2 (ACPI 1.0B MS extensions)␊
710␉}␊
711␉else␊
712␉{␊
713␉␉fadt_mod=(struct acpi_2_fadt *)AllocateKernelMemory(fadt->Length);␊
714␉␉memcpy(fadt_mod, fadt, fadt->Length);␊
715␉}␊
716␉// Determine system type / PM_Model␊
717␉if ( (value=getStringForKey(kSystemType, &bootInfo->chameleonConfig))!=NULL)␊
718␉{␊
719␉␉if (Platform.Type > 6) ␊
720␉␉{␊
721␉␉␉if(fadt_mod->PM_Profile<=6)␊
722␉␉␉␉Platform.Type = fadt_mod->PM_Profile; // get the fadt if correct␊
723␉␉␉else ␊
724␉␉␉␉Platform.Type = 1;␉␉/* Set a fixed value (Desktop) */␊
725␉␉␉verbose("Error: system-type must be 0..6. Defaulting to %d !\n", Platform.Type);␊
726␉␉}␊
727␉␉else␊
728␉␉␉Platform.Type = (unsigned char) strtoul(value, NULL, 10);␊
729␉}␊
730␉// Set PM_Profile from System-type if only user wanted this value to be forced␊
731␉if (fadt_mod->PM_Profile != Platform.Type) ␊
732␉{␊
733␉ if (value) ␊
734␉␉{ // user has overriden the SystemType so take care of it in FACP␊
735␉␉␉verbose("FADT: changing PM_Profile from 0x%02x to 0x%02x\n", fadt_mod->PM_Profile, Platform.Type);␊
736␉␉␉fadt_mod->PM_Profile = Platform.Type;␊
737␉ }␊
738␉ else␊
739␉ { // PM_Profile has a different value and no override has been set, so reflect the user value to ioregs␊
740␉␉␉Platform.Type = fadt_mod->PM_Profile <= 6 ? fadt_mod->PM_Profile : 1;␊
741␉ } ␊
742␉}␊
743␉// We now have to write the systemm-type in ioregs: we cannot do it before in setupDeviceTree()␊
744␉// because we need to take care of facp original content, if it is correct.␊
745␉setupSystemType();␊
746␉␊
747␉// Patch FADT to fix restart␊
748␉if (fix_restart)␊
749␉{␊
750␉␉if (fix_restart_ps2) {␊
751␉␉␉fadt_mod->Flags|= 0x400;␊
752␉␉␉fadt_mod->Reset_SpaceID␉␉= 0x01; // System I/O␊
753␉␉␉fadt_mod->Reset_BitWidth␉= 0x08; // 1 byte␊
754␉␉␉fadt_mod->Reset_BitOffset␉= 0x00; // Offset 0␊
755␉␉␉fadt_mod->Reset_AccessWidth␉= 0x01; // Byte access␊
756␉␉␉fadt_mod->Reset_Address␉␉= 0x64; // Address of the register␊
757␉␉␉fadt_mod->Reset_Value␉␉= 0xfe; // Value to write to reset the system␊
758␉␉␉msglog("FADT: PS2 Restart Fix applied!\n");␊
759␉␉}␊
760␉␉else {␊
761␉␉␉fadt_mod->Flags|= 0x400;␊
762␉␉␉fadt_mod->Reset_SpaceID␉␉= 0x01; // System I/O␊
763␉␉␉fadt_mod->Reset_BitWidth␉= 0x08; // 1 byte␊
764␉␉␉fadt_mod->Reset_BitOffset␉= 0x00; // Offset 0␊
765␉␉␉fadt_mod->Reset_AccessWidth␉= 0x01; // Byte access␊
766␉␉␉fadt_mod->Reset_Address␉␉= 0x0cf9; // Address of the register␊
767␉␉␉fadt_mod->Reset_Value␉␉= 0x06; // Value to write to reset the system␊
768␉␉␉verbose("FADT: ACPI Restart Fix applied!\n");␊
769␉␉}␊
770␊
771␉}␊
772␉␊
773␉// Patch DSDT Address if we have loaded DSDT.aml␊
774␉if(new_dsdt)␊
775␉{␊
776␉␉DBG("DSDT: Old @%x,%x, ",fadt_mod->DSDT,fadt_mod->X_DSDT);␊
777␉␉␊
778␉␉fadt_mod->DSDT=(uint32_t)new_dsdt;␊
779␉␉if ((uint32_t)(&(fadt_mod->X_DSDT))-(uint32_t)fadt_mod+8<=fadt_mod->Length)␊
780␉␉␉fadt_mod->X_DSDT=(uint32_t)new_dsdt;␊
781␉␉␊
782␉␉DBG("New @%x,%x\n",fadt_mod->DSDT,fadt_mod->X_DSDT);␊
783␉␉␊
784␉␉verbose("FADT: Using custom DSDT!\n");␊
785␉}␊
786␉␊
787␉// Correct the checksum␊
788␉fadt_mod->Checksum=0;␊
789␉fadt_mod->Checksum=256-checksum8(fadt_mod,fadt_mod->Length);␊
790␉␊
791␉return fadt_mod;␊
792}␊
793␊
794/* Setup ACPI without replacing DSDT. */␊
795int setupAcpiNoMod()␊
796{␊
797␉//␉addConfigurationTable(&gEfiAcpiTableGuid, getAddressOfAcpiTable(), "ACPI");␊
798␉//␉addConfigurationTable(&gEfiAcpi20TableGuid, getAddressOfAcpi20Table(), "ACPI_20");␊
799␉/* XXX aserebln why uint32 cast if pointer is uint64 ? */␊
800␉acpi10_p = (uint32_t)getAddressOfAcpiTable();␊
801␉acpi20_p = (uint32_t)getAddressOfAcpi20Table();␊
802␉addConfigurationTable(&gEfiAcpiTableGuid, &acpi10_p, "ACPI");␊
803␉if(acpi20_p) addConfigurationTable(&gEfiAcpi20TableGuid, &acpi20_p, "ACPI_20");␊
804␉return 1;␊
805}␊
806␊
807/* Setup ACPI. Replace DSDT if DSDT.aml is found */␊
808int setupAcpi(void)␊
809{␊
810␉int version;␊
811␉void *new_dsdt;␊
812␊
813 ␊
814␉const char *filename;␊
815␉char dirSpec[128];␊
816␉int len = 0;␊
817␊
818 // always reset cpu count to 0 when injecting new acpi␊
819 acpi_cpu_count = 0;␊
820 ␊
821␉// Try using the file specified with the DSDT option␊
822␉if (getValueForKey(kDSDT, &filename, &len, &bootInfo->chameleonConfig))␊
823␉{␊
824␉␉sprintf(dirSpec, filename);␊
825␉}␊
826␉else␊
827␉{␊
828␉␉sprintf(dirSpec, "DSDT.aml");␊
829␉}␊
830␉␊
831␉// Load replacement DSDT␊
832␉new_dsdt = loadACPITable(dirSpec);␊
833␉// Mozodojo: going to patch FACP and load SSDT's even if DSDT.aml is not present␊
834␉/*if (!new_dsdt)␊
835␉ {␊
836␉ return setupAcpiNoMod();␊
837␉ }*/␊
838␉␊
839␉// Mozodojo: Load additional SSDTs␊
840␉struct acpi_2_ssdt *new_ssdt[32]; // 30 + 2 additional tables for pss & cst␊
841␉int ssdt_count=0;␊
842␉␊
843␉// SSDT Options␊
844␉bool drop_ssdt=false, generate_pstates=false, generate_cstates=false; ␊
845␉␊
846␉getBoolForKey(kDropSSDT, &drop_ssdt, &bootInfo->chameleonConfig);␊
847␉getBoolForKey(kGeneratePStates, &generate_pstates, &bootInfo->chameleonConfig);␊
848␉getBoolForKey(kGenerateCStates, &generate_cstates, &bootInfo->chameleonConfig);␊
849␉␊
850 DBG("generating p-states config: %d\n", generate_pstates);␊
851 DBG("generating c-states config: %d\n", generate_cstates);␊
852 ␊
853␉{␊
854␉␉int i;␊
855␉␉␊
856␉␉for (i=0; i<30; i++)␊
857␉␉{␊
858␉␉␉char filename[512];␊
859␊
860␉␉␉sprintf(filename, i>0?"SSDT-%d.aml":"SSDT.aml", i);␊
861␉␉␉␊
862␉␉␉if ( (new_ssdt[ssdt_count] = loadACPITable(filename)) )␊
863␉␉␉{␉␉␉␉␊
864␉␉␉␉ssdt_count++;␊
865␉␉␉}␊
866␉␉␉else ␊
867␉␉␉{␊
868␉␉␉␉break;␊
869␉␉␉}␊
870␉␉}␊
871␉}␊
872␉␉␊
873␉// Do the same procedure for both versions of ACPI␊
874␉for (version=0; version<2; version++) {␊
875␉␉struct acpi_2_rsdp *rsdp, *rsdp_mod;␊
876␉␉struct acpi_2_rsdt *rsdt, *rsdt_mod;␊
877␉␉int rsdplength;␊
878␉␉␊
879␉␉// Find original rsdp␊
880␉␉rsdp=(struct acpi_2_rsdp *)(version?getAddressOfAcpi20Table():getAddressOfAcpiTable());␊
881␉␉if (!rsdp)␊
882␉␉{␊
883␉␉␉DBG("No ACPI version %d found. Ignoring\n", version+1);␊
884␉␉␉if (version)␊
885␉␉␉␉addConfigurationTable(&gEfiAcpi20TableGuid, NULL, "ACPI_20");␊
886␉␉␉else␊
887␉␉␉␉addConfigurationTable(&gEfiAcpiTableGuid, NULL, "ACPI");␊
888␉␉␉continue;␊
889␉␉}␊
890␉␉rsdplength=version?rsdp->Length:20;␊
891␉␉␊
892␉␉DBG("RSDP version %d found @%x. Length=%d\n",version+1,rsdp,rsdplength);␊
893␉␉␊
894␉␉/* FIXME: no check that memory allocation succeeded ␊
895␉␉ * Copy and patch RSDP,RSDT, XSDT and FADT␊
896␉␉ * For more info see ACPI Specification pages 110 and following␊
897␉␉ */␊
898␉␉␊
899␉␉rsdp_mod=(struct acpi_2_rsdp *) AllocateKernelMemory(rsdplength);␊
900␉␉memcpy(rsdp_mod, rsdp, rsdplength); ␊
901␉␉rsdt=(struct acpi_2_rsdt *)(rsdp->RsdtAddress);␊
902␉␉␊
903␉␉DBG("RSDT @%x, Length %d\n",rsdt, rsdt->Length);␊
904␉␉␊
905␉␉if (rsdt && (uint32_t)rsdt !=0xffffffff && rsdt->Length<0x10000)␊
906␉␉{␊
907␉␉␉uint32_t *rsdt_entries;␊
908␉␉␉int rsdt_entries_num;␊
909␉␉␉int dropoffset=0, i;␊
910␉␉␉␊
911␉␉␉// mozo: using malloc cos I didn't found how to free already allocated kernel memory␊
912␉␉␉rsdt_mod=(struct acpi_2_rsdt *)malloc(rsdt->Length); ␊
913␉␉␉memcpy (rsdt_mod, rsdt, rsdt->Length);␊
914␉␉␉rsdp_mod->RsdtAddress=(uint32_t)rsdt_mod;␊
915␉␉␉rsdt_entries_num=(rsdt_mod->Length-sizeof(struct acpi_2_rsdt))/4;␊
916␉␉␉rsdt_entries=(uint32_t *)(rsdt_mod+1);␊
917␉␉␉for (i=0;i<rsdt_entries_num;i++)␊
918␉␉␉{␊
919␉␉␉␉char *table=(char *)(rsdt_entries[i]);␊
920␉␉␉␉if (!table)␊
921␉␉␉␉␉continue;␊
922␉␉␉␉␊
923␉␉␉␉DBG("TABLE %c%c%c%c,",table[0],table[1],table[2],table[3]);␊
924␉␉␉␉␊
925␉␉␉␉rsdt_entries[i-dropoffset]=rsdt_entries[i];␊
926␉␉␉␉␊
927␉␉␉␉if (drop_ssdt && tableSign(table, "SSDT"))␊
928␉␉␉␉{␊
929␉␉␉␉␉dropoffset++;␊
930␉␉␉␉␉continue;␊
931␉␉␉␉}␊
932␉␉␉␉if (tableSign(table, "DSDT"))␊
933␉␉␉␉{␊
934␉␉␉␉␉DBG("DSDT found\n");␊
935␉␉␉␉␉␊
936␉␉␉␉␉if(new_dsdt)␊
937␉␉␉␉␉␉rsdt_entries[i-dropoffset]=(uint32_t)new_dsdt;␊
938␉␉␉␉␉␉␉␉␉␉␊
939␉␉␉␉␉continue;␊
940␉␉␉␉}␊
941␉␉␉␉if (tableSign(table, "FACP"))␊
942␉␉␉␉{␊
943␉␉␉␉␉struct acpi_2_fadt *fadt, *fadt_mod;␊
944␉␉␉␉␉fadt=(struct acpi_2_fadt *)rsdt_entries[i];␊
945␉␉␉␉␉␊
946␉␉␉␉␉DBG("FADT found @%x, Length %d\n",fadt, fadt->Length);␊
947␉␉␉␉␉␊
948␉␉␉␉␉if (!fadt || (uint32_t)fadt == 0xffffffff || fadt->Length>0x10000)␊
949␉␉␉␉␉{␊
950␉␉␉␉␉␉printf("FADT incorrect. Not modified\n");␊
951␉␉␉␉␉␉continue;␊
952␉␉␉␉␉}␊
953␉␉␉␉␉␊
954␉␉␉␉␉fadt_mod = patch_fadt(fadt, new_dsdt);␊
955␉␉␉␉␉rsdt_entries[i-dropoffset]=(uint32_t)fadt_mod;␊
956␉␉␉␉␉␊
957␉␉␉␉␉// Generate _CST SSDT␊
958␉␉␉␉␉if (generate_cstates && (new_ssdt[ssdt_count] = generate_cst_ssdt(fadt_mod)))␊
959␉␉␉␉␉{␊
960 DBG("c-states generated\n");␊
961␉␉␉␉␉␉generate_cstates = false; // Generate SSDT only once!␊
962␉␉␉␉␉␉ssdt_count++;␊
963␉␉␉␉␉}␊
964␉␉␉␉␉␊
965␉␉␉␉␉// Generating _PSS SSDT␊
966␉␉␉␉␉if (generate_pstates && (new_ssdt[ssdt_count] = generate_pss_ssdt((void*)fadt_mod->DSDT)))␊
967␉␉␉␉␉{␊
968 DBG("p-states generated\n");␊
969␉␉␉␉␉␉generate_pstates = false; // Generate SSDT only once!␊
970␉␉␉␉␉␉ssdt_count++;␊
971␉␉␉␉␉}␊
972␉␉␉␉␉␊
973␉␉␉␉␉continue;␊
974␉␉␉␉}␊
975␉␉␉}␊
976␉␉␉DBG("\n");␊
977␉␉␉␊
978␉␉␉// Allocate rsdt in Kernel memory area␊
979␉␉␉rsdt_mod->Length += 4*ssdt_count - 4*dropoffset;␊
980␉␉␉struct acpi_2_rsdt *rsdt_copy = (struct acpi_2_rsdt *)AllocateKernelMemory(rsdt_mod->Length);␊
981␉␉␉memcpy (rsdt_copy, rsdt_mod, rsdt_mod->Length);␊
982␉␉␉free(rsdt_mod); rsdt_mod = rsdt_copy;␊
983␉␉␉rsdp_mod->RsdtAddress=(uint32_t)rsdt_mod;␊
984␉␉␉rsdt_entries_num=(rsdt_mod->Length-sizeof(struct acpi_2_rsdt))/4;␊
985␉␉␉rsdt_entries=(uint32_t *)(rsdt_mod+1);␊
986␉␉␉␊
987␉␉␉// Mozodojo: Insert additional SSDTs into RSDT␊
988␉␉␉if(ssdt_count>0)␊
989␉␉␉{␊
990␉␉␉␉int j;␊
991␉␉␉␉␊
992␉␉␉␉for (j=0; j<ssdt_count; j++)␊
993␉␉␉␉␉rsdt_entries[i-dropoffset+j]=(uint32_t)new_ssdt[j];␊
994␉␉␉␉␉␊
995␉␉␉␉verbose("RSDT: Added %d SSDT table(s)\n", ssdt_count);␊
996␉␉␉}␊
997␊
998␉␉␉// Correct the checksum of RSDT␊
999␉␉␉DBG("RSDT: Original checksum %d, ", rsdt_mod->Checksum);␊
1000␉␉␉␊
1001␉␉␉rsdt_mod->Checksum=0;␊
1002␉␉␉rsdt_mod->Checksum=256-checksum8(rsdt_mod,rsdt_mod->Length);␊
1003␉␉␉␊
1004␉␉␉DBG("New checksum %d at %x\n", rsdt_mod->Checksum,rsdt_mod);␊
1005␉␉}␊
1006␉␉else␊
1007␉␉{␊
1008␉␉␉rsdp_mod->RsdtAddress=0;␊
1009␉␉␉printf("RSDT not found or RSDT incorrect\n");␊
1010␉␉}␊
1011␉␉␊
1012␉␉if (version)␊
1013␉␉{␊
1014␉␉␉struct acpi_2_xsdt *xsdt, *xsdt_mod;␊
1015␉␉␉␊
1016␉␉␉// FIXME: handle 64-bit address correctly␊
1017␉␉␉␊
1018␉␉␉xsdt=(struct acpi_2_xsdt*) ((uint32_t)rsdp->XsdtAddress);␊
1019␉␉␉DBG("XSDT @%x;%x, Length=%d\n", (uint32_t)(rsdp->XsdtAddress>>32),(uint32_t)rsdp->XsdtAddress,␊
1020␉␉␉␉xsdt->Length);␊
1021␉␉␉if (xsdt && (uint64_t)rsdp->XsdtAddress<0xffffffff && xsdt->Length<0x10000)␊
1022␉␉␉{␊
1023␉␉␉␉uint64_t *xsdt_entries;␊
1024␉␉␉␉int xsdt_entries_num, i;␊
1025␉␉␉␉int dropoffset=0;␊
1026␉␉␉␉␊
1027␉␉␉␉// mozo: using malloc cos I didn't found how to free already allocated kernel memory␊
1028␉␉␉␉xsdt_mod=(struct acpi_2_xsdt*)malloc(xsdt->Length); ␊
1029␉␉␉␉memcpy(xsdt_mod, xsdt, xsdt->Length);␊
1030␉␉␉␉rsdp_mod->XsdtAddress=(uint32_t)xsdt_mod;␊
1031␉␉␉␉xsdt_entries_num=(xsdt_mod->Length-sizeof(struct acpi_2_xsdt))/8;␊
1032␉␉␉␉xsdt_entries=(uint64_t *)(xsdt_mod+1);␊
1033␉␉␉␉for (i=0;i<xsdt_entries_num;i++)␊
1034␉␉␉␉{␊
1035␉␉␉␉␉char *table=(char *)((uint32_t)(xsdt_entries[i]));␊
1036␉␉␉␉␉if (!table)␊
1037␉␉␉␉␉␉continue;␊
1038␉␉␉␉␉␊
1039␉␉␉␉␉xsdt_entries[i-dropoffset]=xsdt_entries[i];␊
1040␉␉␉␉␉␊
1041␉␉␉␉␉if (drop_ssdt && tableSign(table, "SSDT"))␊
1042␉␉␉␉␉{␊
1043␉␉␉␉␉␉dropoffset++;␊
1044␉␉␉␉␉␉continue;␊
1045␉␉␉␉␉}␉␉␉␉␉␊
1046␉␉␉␉␉if (tableSign(table, "DSDT"))␊
1047␉␉␉␉␉{␊
1048␉␉␉␉␉␉DBG("DSDT found\n");␊
1049␉␉␉␉␉␉␊
1050␉␉␉␉␉␉if (new_dsdt) ␊
1051␉␉␉␉␉␉␉xsdt_entries[i-dropoffset]=(uint32_t)new_dsdt;␊
1052␉␉␉␉␉␉␊
1053␉␉␉␉␉␉DBG("TABLE %c%c%c%c@%x,",table[0],table[1],table[2],table[3],xsdt_entries[i]);␊
1054␉␉␉␉␉␉␊
1055␉␉␉␉␉␉continue;␊
1056␉␉␉␉␉}␊
1057␉␉␉␉␉if (tableSign(table, "FACP"))␊
1058␉␉␉␉␉{␊
1059␉␉␉␉␉␉struct acpi_2_fadt *fadt, *fadt_mod;␊
1060␉␉␉␉␉␉fadt=(struct acpi_2_fadt *)(uint32_t)xsdt_entries[i];␊
1061␉␉␉␉␉␉␊
1062␉␉␉␉␉␉DBG("FADT found @%x,%x, Length %d\n",(uint32_t)(xsdt_entries[i]>>32),fadt, ␊
1063␉␉␉␉␉␉␉fadt->Length);␊
1064␉␉␉␉␉␉␊
1065␉␉␉␉␉␉if (!fadt || (uint64_t)xsdt_entries[i] >= 0xffffffff || fadt->Length>0x10000)␊
1066␉␉␉␉␉␉{␊
1067␉␉␉␉␉␉␉verbose("FADT incorrect or after 4GB. Dropping XSDT\n");␊
1068␉␉␉␉␉␉␉goto drop_xsdt;␊
1069␉␉␉␉␉␉}␊
1070␉␉␉␉␉␉␊
1071␉␉␉␉␉␉fadt_mod = patch_fadt(fadt, new_dsdt);␊
1072␉␉␉␉␉␉xsdt_entries[i-dropoffset]=(uint32_t)fadt_mod;␊
1073␉␉␉␉␉␉␊
1074␉␉␉␉␉␉DBG("TABLE %c%c%c%c@%x,",table[0],table[1],table[2],table[3],xsdt_entries[i]);␊
1075␉␉␉␉␉␉␊
1076␉␉␉␉␉␉// Generate _CST SSDT␊
1077␉␉␉␉␉␉if (generate_cstates && (new_ssdt[ssdt_count] = generate_cst_ssdt(fadt_mod))) ␊
1078␉␉␉␉␉␉{␊
1079␉␉␉␉␉␉␉generate_cstates = false; // Generate SSDT only once!␊
1080␉␉␉␉␉␉␉ssdt_count++;␊
1081␉␉␉␉␉␉}␊
1082␉␉␉␉␉␉␊
1083␉␉␉␉␉␉// Generating _PSS SSDT␊
1084␉␉␉␉␉␉if (generate_pstates && (new_ssdt[ssdt_count] = generate_pss_ssdt((void*)fadt_mod->DSDT)))␊
1085␉␉␉␉␉␉{␊
1086␉␉␉␉␉␉␉generate_pstates = false; // Generate SSDT only once!␊
1087␉␉␉␉␉␉␉ssdt_count++;␊
1088␉␉␉␉␉␉}␊
1089␉␉␉␉␉␉␊
1090␉␉␉␉␉␉continue;␊
1091␉␉␉␉␉}␊
1092␉␉␉␉␉␊
1093␉␉␉␉␉DBG("TABLE %c%c%c%c@%x,",table[0],table[1],table[2],table[3],xsdt_entries[i]);␊
1094␉␉␉␉␉␊
1095␉␉␉␉}␊
1096␉␉␉␉␊
1097␉␉␉␉// Allocate xsdt in Kernel memory area␊
1098␉␉␉␉xsdt_mod->Length += 8*ssdt_count - 8*dropoffset;␊
1099␉␉␉␉struct acpi_2_xsdt *xsdt_copy = (struct acpi_2_xsdt *)AllocateKernelMemory(xsdt_mod->Length);␊
1100␉␉␉␉memcpy(xsdt_copy, xsdt_mod, xsdt_mod->Length);␊
1101␉␉␉␉free(xsdt_mod); xsdt_mod = xsdt_copy;␊
1102␉␉␉␉rsdp_mod->XsdtAddress=(uint32_t)xsdt_mod;␊
1103␉␉␉␉xsdt_entries_num=(xsdt_mod->Length-sizeof(struct acpi_2_xsdt))/8;␊
1104␉␉␉␉xsdt_entries=(uint64_t *)(xsdt_mod+1);␊
1105␉␉␉␉␊
1106␉␉␉␉// Mozodojo: Insert additional SSDTs into XSDT␊
1107␉␉␉␉if(ssdt_count>0)␊
1108␉␉␉␉{␊
1109␉␉␉␉␉int j;␊
1110␉␉␉␉␉␊
1111␉␉␉␉␉for (j=0; j<ssdt_count; j++)␊
1112␉␉␉␉␉␉xsdt_entries[i-dropoffset+j]=(uint32_t)new_ssdt[j];␊
1113␉␉␉␉␉␉␊
1114␉␉␉␉␉verbose("Added %d SSDT table(s) into XSDT\n", ssdt_count);␊
1115␉␉␉␉}␊
1116␊
1117␉␉␉␉// Correct the checksum of XSDT␊
1118␉␉␉␉xsdt_mod->Checksum=0;␊
1119␉␉␉␉xsdt_mod->Checksum=256-checksum8(xsdt_mod,xsdt_mod->Length);␊
1120␉␉␉}␊
1121␉␉␉else␊
1122␉␉␉{␊
1123␉␉␉drop_xsdt:␊
1124␉␉␉␉␊
1125␉␉␉␉DBG("About to drop XSDT\n");␊
1126␉␉␉␉␊
1127␉␉␉␉/*FIXME: Now we just hope that if MacOS doesn't find XSDT it reverts to RSDT. ␊
1128␉␉␉␉ * A Better strategy would be to generate␊
1129␉␉␉␉ */␊
1130␉␉␉␉␊
1131␉␉␉␉rsdp_mod->XsdtAddress=0xffffffffffffffffLL;␊
1132␉␉␉␉verbose("XSDT not found or XSDT incorrect\n");␊
1133␉␉␉}␊
1134␉␉}␊
1135␉␉␊
1136␉␉// Correct the checksum of RSDP ␊
1137␉␉␊
1138␉␉DBG("RSDP: Original checksum %d, ", rsdp_mod->Checksum);␊
1139␉␉␊
1140␉␉rsdp_mod->Checksum=0;␊
1141␉␉rsdp_mod->Checksum=256-checksum8(rsdp_mod,20);␊
1142␉␉␊
1143␉␉DBG("New checksum %d\n", rsdp_mod->Checksum);␊
1144␉␉␊
1145␉␉if (version)␊
1146␉␉{␊
1147␉␉␉DBG("RSDP: Original extended checksum %d", rsdp_mod->ExtendedChecksum);␊
1148␉␉␉␊
1149␉␉␉rsdp_mod->ExtendedChecksum=0;␊
1150␉␉␉rsdp_mod->ExtendedChecksum=256-checksum8(rsdp_mod,rsdp_mod->Length);␊
1151␉␉␉␊
1152␉␉␉DBG("New extended checksum %d\n", rsdp_mod->ExtendedChecksum);␊
1153␉␉␉␊
1154␉␉}␊
1155␉␉␊
1156␉␉//verbose("Patched ACPI version %d DSDT\n", version+1);␊
1157␉␉if (version)␊
1158␉␉{␊
1159␉␉␉/* XXX aserebln why uint32 cast if pointer is uint64 ? */␊
1160␉␉␉acpi20_p = (uint32_t)rsdp_mod;␊
1161␉␉␉addConfigurationTable(&gEfiAcpi20TableGuid, &acpi20_p, "ACPI_20");␊
1162␉␉}␊
1163␉␉else␊
1164␉␉{␊
1165␉␉␉/* XXX aserebln why uint32 cast if pointer is uint64 ? */␊
1166␉␉␉acpi10_p = (uint32_t)rsdp_mod;␊
1167␉␉␉addConfigurationTable(&gEfiAcpiTableGuid, &acpi10_p, "ACPI");␊
1168␉␉}␊
1169␉}␊
1170#if DEBUG_ACPI␊
1171␉printf("Press a key to continue... (DEBUG_ACPI)\n");␊
1172␉getchar();␊
1173#endif␊
1174␉return 1;␊
1175}␊
1176

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