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

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