Chameleon

Chameleon Svn Source Tree

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

Archive Download this file

Revision: 2248