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Source at commit 632 created 13 years 5 months ago.
By meklort, Modify ACPI patcher to save orig dsdt
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␊
28uint64_t acpi10_p;␊
29uint64_t acpi20_p;␊
30␊
31␊
32extern char* gSMBIOSBoardModel;␊
33␊
34// Slice: New signature compare function␊
35boolean_t tableSign(char *table, const char *sgn)␊
36{␊
37␉int i;␊
38␉for (i=0; i<4; i++) {␊
39␉␉if ((table[i] &~0x20) != (sgn[i] &~0x20)) {␊
40␉␉␉return false;␊
41␉␉}␊
42␉}␊
43␉return true;␊
44}␊
45␊
46/* Gets the ACPI 1.0 RSDP address */␊
47static struct acpi_2_rsdp* getAddressOfAcpiTable()␊
48{␊
49 /* TODO: Before searching the BIOS space we are supposed to search the first 1K of the EBDA */␊
50␉␊
51 void *acpi_addr = (void*)ACPI_RANGE_START;␊
52 for(; acpi_addr <= (void*)ACPI_RANGE_END; acpi_addr += 16)␊
53 {␊
54 if(*(uint64_t *)acpi_addr == ACPI_SIGNATURE_UINT64_LE)␊
55 {␊
56 uint8_t csum = checksum8(acpi_addr, 20);␊
57 if(csum == 0)␊
58 {␊
59 // Only return the table if it is a true version 1.0 table (Revision 0)␊
60 if(((struct acpi_2_rsdp*)acpi_addr)->Revision == 0)␊
61 return acpi_addr;␊
62 }␊
63 }␊
64 }␊
65 return NULL;␊
66}␊
67␊
68/* Gets the ACPI 2.0 RSDP address */␊
69static struct acpi_2_rsdp* getAddressOfAcpi20Table()␊
70{␊
71 /* TODO: Before searching the BIOS space we are supposed to search the first 1K of the EBDA */␊
72␉␊
73 void *acpi_addr = (void*)ACPI_RANGE_START;␊
74 for(; acpi_addr <= (void*)ACPI_RANGE_END; acpi_addr += 16)␊
75 {␊
76 if(*(uint64_t *)acpi_addr == ACPI_SIGNATURE_UINT64_LE)␊
77 {␊
78 uint8_t csum = checksum8(acpi_addr, 20);␊
79␉␉␉␊
80 /* Only assume this is a 2.0 or better table if the revision is greater than 0␊
81 * NOTE: ACPI 3.0 spec only seems to say that 1.0 tables have revision 1␊
82 * and that the current revision is 2.. I am going to assume that rev > 0 is 2.0.␊
83 */␊
84␉␉␉␊
85 if(csum == 0 && (((struct acpi_2_rsdp*)acpi_addr)->Revision > 0))␊
86 {␊
87 uint8_t csum2 = checksum8(acpi_addr, sizeof(struct acpi_2_rsdp));␊
88 if(csum2 == 0)␊
89 return acpi_addr;␊
90 }␊
91 }␊
92 }␊
93 return NULL;␊
94}␊
95/** The folowing ACPI Table search algo. should be reused anywhere needed:*/␊
96int search_and_get_acpi_fd(const char * filename, const char ** outDirspec)␊
97{␊
98␉int fd = -1;␊
99␉char dirSpec[512] = "";␊
100␉␊
101␉// Try finding 'filename' in the usual places␊
102␉// Start searching any potential location for ACPI Table␊
103␉␊
104␉if(gSMBIOSBoardModel)␊
105␉{␊
106␉␉sprintf(dirSpec,"%s.%s", gSMBIOSBoardModel, filename);␊
107␉␉fd = open(dirSpec, 0);␊
108␉}␊
109␉␊
110␉if (fd < 0)␊
111␉{␊
112␉␉sprintf(dirSpec, "%s", filename); ␊
113␉␉fd = open(dirSpec, 0);␊
114␉␉if (fd < 0)␊
115␉␉{␉␊
116␉␉␉if(gSMBIOSBoardModel)␊
117␉␉␉{␊
118␉␉␉␉sprintf(dirSpec, "/Extra/%s.%s", gSMBIOSBoardModel, filename);␊
119␉␉␉␉fd = open(dirSpec, 0);␊
120␉␉␉}␊
121␉␉␉if (fd < 0)␊
122␉␉␉{␊
123␉␉␉␉sprintf(dirSpec, "/Extra/%s", filename); ␊
124␉␉␉␉fd = open(dirSpec, 0);␊
125␉␉␉␉if (fd < 0)␊
126␉␉␉␉{␊
127␉␉␉␉␉if(gSMBIOSBoardModel)␊
128␉␉␉␉␉{␊
129␉␉␉␉␉␉sprintf(dirSpec, "bt(0,0)/Extra/%s.%s", gSMBIOSBoardModel, filename);␊
130␉␉␉␉␉␉fd = open(dirSpec, 0);␊
131␉␉␉␉␉}␊
132␉␉␉␉␉if (fd < 0)␊
133␉␉␉␉␉{␉␉␉␉␉␉␊
134␉␉␉␉␉␉sprintf(dirSpec, "bt(0,0)/Extra/%s", filename);␊
135␉␉␉␉␉␉fd = open(dirSpec, 0);␊
136␉␉␉␉␉}␊
137␉␉␉␉}␊
138␉␉␉␉␊
139␉␉␉}␊
140␉␉}␊
141␉}␊
142␉␊
143␉if (fd < 0)␊
144␉{␊
145␉␉// NOT FOUND:␊
146␉␉verbose("ACPI table not found: %s\n", filename);␊
147␉␉*dirSpec = '\0';␊
148␉}␊
149␊
150␉if (outDirspec) *outDirspec = dirSpec; ␊
151␉return fd;␊
152}␊
153␊
154␊
155void *loadACPITable (const char * filename)␊
156{␊
157␉void *tableAddr;␊
158␉const char * dirspec=NULL;␊
159␉␊
160␉int fd = search_and_get_acpi_fd(filename, &dirspec);␊
161␉␊
162␉if (fd>=0)␊
163␉{␊
164␉␉tableAddr=(void*)AllocateKernelMemory(file_size (fd));␊
165␉␉if (tableAddr)␊
166␉␉{␊
167␉␉␉if (read (fd, tableAddr, file_size (fd))!=file_size (fd))␊
168␉␉␉{␊
169␉␉␉␉printf("Couldn't read table %s\n",dirspec);␊
170␉␉␉␉free (tableAddr);␊
171␉␉␉␉close (fd);␊
172␉␉␉␉return NULL;␊
173␉␉␉}␊
174␉␉␉␊
175␉␉␉DBG("Table %s read and stored at: %x\n", dirspec, tableAddr);␊
176␉␉␉close (fd);␊
177␉␉␉return tableAddr;␊
178␉␉}␊
179␉␉close (fd);␊
180␉␉printf("Couldn't allocate memory for table \n", dirspec);␊
181␉} ␊
182␉//printf("Couldn't find table %s\n", filename);␊
183␉return NULL;␊
184}␊
185␊
186uint8_t␉acpi_cpu_count = 0;␊
187char* acpi_cpu_name[32];␊
188␊
189void get_acpi_cpu_names(unsigned char* dsdt, uint32_t length)␊
190{␊
191␉uint32_t i;␊
192␉␊
193␉for (i=0; i<length-7; i++) ␊
194␉{␊
195␉␉if (dsdt[i] == 0x5B && dsdt[i+1] == 0x83) // ProcessorOP␊
196␉␉{␊
197␉␉␉uint32_t offset = i + 3 + (dsdt[i+2] >> 6);␊
198␉␉␉␊
199␉␉␉bool add_name = true;␊
200␉␉␉␊
201␉␉␉uint8_t j;␊
202␉␉␉␊
203␉␉␉for (j=0; j<4; j++) ␊
204␉␉␉{␊
205␉␉␉␉char c = dsdt[offset+j];␊
206␉␉␉␉␊
207␉␉␉␉if (!aml_isvalidchar(c)) ␊
208␉␉␉␉{␊
209␉␉␉␉␉add_name = false;␊
210␉␉␉␉␉verbose("Invalid character found in ProcessorOP 0x%x!\n", c);␊
211␉␉␉␉␉break;␊
212␉␉␉␉}␊
213␉␉␉}␊
214␉␉␉␊
215␉␉␉if (add_name) ␊
216␉␉␉{␊
217␉␉␉␉acpi_cpu_name[acpi_cpu_count] = malloc(4);␊
218␉␉␉␉memcpy(acpi_cpu_name[acpi_cpu_count], dsdt+offset, 4);␊
219␉␉␉␉i = offset + 5;␊
220␉␉␉␉␊
221␉␉␉␉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]);␊
222␉␉␉␉␊
223␉␉␉␉if (++acpi_cpu_count == 32) return;␊
224␉␉␉}␊
225␉␉}␊
226␉}␊
227}␊
228␊
229struct acpi_2_ssdt *generate_cst_ssdt(struct acpi_2_fadt* fadt)␊
230{␊
231␉char ssdt_header[] =␊
232␉{␊
233␉␉0x53, 0x53, 0x44, 0x54, 0xE7, 0x00, 0x00, 0x00, /* SSDT.... */␊
234␉␉0x01, 0x17, 0x50, 0x6D, 0x52, 0x65, 0x66, 0x41, /* ..PmRefA */␊
235␉␉0x43, 0x70, 0x75, 0x43, 0x73, 0x74, 0x00, 0x00, /* CpuCst.. */␊
236␉␉0x00, 0x10, 0x00, 0x00, 0x49, 0x4E, 0x54, 0x4C, /* ....INTL */␊
237␉␉0x31, 0x03, 0x10, 0x20 ␉␉␉␉␉␉␉/* 1.._␉␉*/␊
238␉};␊
239␉␊
240␉char cstate_resource_template[] = ␊
241␉{␊
242␉␉0x11, 0x14, 0x0A, 0x11, 0x82, 0x0C, 0x00, 0x7F, ␊
243␉␉0x01, 0x02, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, ␊
244␉␉0x00, 0x00, 0x00, 0x79, 0x00␊
245␉};␊
246␉␊
247␉if (Platform->CPU.Vendor != 0x756E6547) {␊
248␉␉verbose ("Not an Intel platform: C-States will not be generated !!!\n");␊
249␉␉return NULL;␊
250␉}␊
251␉␊
252␉if (fadt == NULL) {␊
253␉␉verbose ("FACP not exists: C-States will not be generated !!!\n");␊
254␉␉return NULL;␊
255␉}␊
256␉␊
257␉struct acpi_2_dsdt* dsdt = (void*)fadt->DSDT;␊
258␉␊
259␉if (dsdt == NULL) {␊
260␉␉verbose ("DSDT not found: C-States will not be generated !!!\n");␊
261␉␉return NULL;␊
262␉}␊
263␉␊
264␉if (acpi_cpu_count == 0) ␊
265␉␉get_acpi_cpu_names((void*)dsdt, dsdt->Length);␊
266␉␊
267␉if (acpi_cpu_count > 0) ␊
268␉{␊
269␉␉bool c2_enabled = fadt->C2_Latency < 100;␊
270␉␉bool c3_enabled = fadt->C3_Latency < 1000;␊
271␉␉bool c4_enabled = false;␊
272␉␉␊
273␉␉getBoolForKey(kEnableC4States, &c4_enabled, &bootInfo->bootConfig);␊
274␉␉␊
275␉␉unsigned char cstates_count = 1 + (c2_enabled ? 1 : 0) + (c3_enabled ? 1 : 0);␊
276␉␉␊
277␉␉struct aml_chunk* root = aml_create_node(NULL);␊
278␉␉aml_add_buffer(root, ssdt_header, sizeof(ssdt_header)); // SSDT header␊
279␉␉struct aml_chunk* scop = aml_add_scope(root, "\\_PR_");␊
280␉␉struct aml_chunk* name = aml_add_name(scop, "CST_");␊
281␉␉struct aml_chunk* pack = aml_add_package(name);␊
282␉␉aml_add_byte(pack, cstates_count);␊
283␉␉␊
284␉␉struct aml_chunk* tmpl = aml_add_package(pack);␊
285␉␉cstate_resource_template[11] = 0x00; // C1␊
286␉␉aml_add_buffer(tmpl, cstate_resource_template, sizeof(cstate_resource_template));␊
287␉␉aml_add_byte(tmpl, 0x01); // C1␊
288␉␉aml_add_byte(tmpl, 0x01); // Latency␊
289␉␉aml_add_word(tmpl, 0x03e8); // Power␊
290␉␉␊
291␉␉// C2␊
292␉␉if (c2_enabled) ␊
293␉␉{␊
294␉␉␉tmpl = aml_add_package(pack);␊
295␉␉␉cstate_resource_template[11] = 0x10; // C2␊
296␉␉␉aml_add_buffer(tmpl, cstate_resource_template, sizeof(cstate_resource_template));␊
297␉␉␉aml_add_byte(tmpl, 0x02); // C2␊
298␉␉␉aml_add_byte(tmpl, fadt->C2_Latency);␊
299␉␉␉aml_add_word(tmpl, 0x01f4); // Power␊
300␉␉}␊
301␉␉// C4␊
302␉␉if (c4_enabled) ␊
303␉␉{␊
304␉␉␉tmpl = aml_add_package(pack);␊
305␉␉␉cstate_resource_template[11] = 0x30; // C4␊
306␉␉␉aml_add_buffer(tmpl, cstate_resource_template, sizeof(cstate_resource_template));␊
307␉␉␉aml_add_byte(tmpl, 0x04); // C4␊
308␉␉␉aml_add_word(tmpl, fadt->C3_Latency / 2); // TODO: right latency for C4␊
309␉␉␉aml_add_byte(tmpl, 0xfa); // Power␊
310␉␉}␊
311␉␉else␊
312␉␉␉// C3␊
313␉␉␉if (c3_enabled) ␊
314␉␉␉{␊
315␉␉␉␉tmpl = aml_add_package(pack);␊
316␉␉␉␉cstate_resource_template[11] = 0x20; // C3␊
317␉␉␉␉aml_add_buffer(tmpl, cstate_resource_template, sizeof(cstate_resource_template));␊
318␉␉␉␉aml_add_byte(tmpl, 0x03); // C3␊
319␉␉␉␉aml_add_word(tmpl, fadt->C3_Latency);␊
320␉␉␉␉aml_add_word(tmpl, 0x015e); // Power␊
321␉␉␉}␊
322␉␉␊
323␉␉␊
324␉␉// Aliaces␊
325␉␉int i;␊
326␉␉for (i = 0; i < acpi_cpu_count; i++) ␊
327␉␉{␊
328␉␉␉char name[9];␊
329␉␉␉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]);␊
330␉␉␉␊
331␉␉␉scop = aml_add_scope(root, name);␊
332␉␉␉aml_add_alias(scop, "CST_", "_CST");␊
333␉␉}␊
334␉␉␊
335␉␉aml_calculate_size(root);␊
336␉␉␊
337␉␉struct acpi_2_ssdt *ssdt = (struct acpi_2_ssdt *)AllocateKernelMemory(root->Size);␊
338␉␉␊
339␉␉aml_write_node(root, (void*)ssdt, 0);␊
340␉␉␊
341␉␉ssdt->Length = root->Size;␊
342␉␉ssdt->Checksum = 0;␊
343␉␉ssdt->Checksum = 256 - checksum8(ssdt, ssdt->Length);␊
344␉␉␊
345␉␉aml_destroy_node(root);␊
346␉␉␊
347␉␉//dumpPhysAddr("C-States SSDT content: ", ssdt, ssdt->Length);␊
348␉␉␊
349␉␉verbose ("SSDT with CPU C-States generated successfully\n");␊
350␉␉␊
351␉␉return ssdt;␊
352␉}␊
353␉else ␊
354␉{␊
355␉␉verbose ("ACPI CPUs not found: C-States not generated !!!\n");␊
356␉}␊
357␉␊
358␉return NULL;␊
359}␊
360␊
361struct acpi_2_ssdt *generate_pss_ssdt(struct acpi_2_dsdt* dsdt)␊
362{␉␊
363␉char ssdt_header[] =␊
364␉{␊
365␉␉0x53, 0x53, 0x44, 0x54, 0x7E, 0x00, 0x00, 0x00, /* SSDT.... */␊
366␉␉0x01, 0x6A, 0x50, 0x6D, 0x52, 0x65, 0x66, 0x00, /* ..PmRef. */␊
367␉␉0x43, 0x70, 0x75, 0x50, 0x6D, 0x00, 0x00, 0x00, /* CpuPm... */␊
368␉␉0x00, 0x30, 0x00, 0x00, 0x49, 0x4E, 0x54, 0x4C, /* .0..INTL */␊
369␉␉0x31, 0x03, 0x10, 0x20,␉␉␉␉␉␉␉/* 1.._␉␉*/␊
370␉};␊
371␉␊
372␉if (Platform->CPU.Vendor != 0x756E6547) {␊
373␉␉verbose ("Not an Intel platform: P-States will not be generated !!!\n");␊
374␉␉return NULL;␊
375␉}␊
376␉␊
377␉if (!(Platform->CPU.Features & CPU_FEATURE_MSR)) {␊
378␉␉verbose ("Unsupported CPU: P-States will not be generated !!!\n");␊
379␉␉return NULL;␊
380␉}␊
381␉␊
382␉if (acpi_cpu_count == 0) ␊
383␉␉get_acpi_cpu_names((void*)dsdt, dsdt->Length);␊
384␉␊
385␉if (acpi_cpu_count > 0) ␊
386␉{␊
387␉␉struct p_state initial, maximum, minimum, p_states[32];␊
388␉␉uint8_t p_states_count = 0;␉␉␊
389␉␉␊
390␉␉// Retrieving P-States, ported from code by superhai (c)␊
391␉␉switch (Platform->CPU.Family) {␊
392␉␉␉case 0x06: ␊
393␉␉␉{␊
394␉␉␉␉switch (Platform->CPU.Model) ␊
395␉␉␉␉{␊
396␉␉␉␉␉case 0x0D: // ?␊
397␉␉␉␉␉case CPU_MODEL_YONAH: // Yonah␊
398␉␉␉␉␉case CPU_MODEL_MEROM: // Merom␊
399␉␉␉␉␉case CPU_MODEL_PENRYN: // Penryn␊
400␉␉␉␉␉case CPU_MODEL_ATOM: // Intel Atom (45nm)␊
401␉␉␉␉␉{␊
402␉␉␉␉␉␉bool cpu_dynamic_fsb = false;␊
403␉␉␉␉␉␉␊
404␉␉␉␉␉␉if (rdmsr64(MSR_IA32_EXT_CONFIG) & (1 << 27)) ␊
405␉␉␉␉␉␉{␊
406␉␉␉␉␉␉␉wrmsr64(MSR_IA32_EXT_CONFIG, (rdmsr64(MSR_IA32_EXT_CONFIG) | (1 << 28))); ␊
407␉␉␉␉␉␉␉delay(1);␊
408␉␉␉␉␉␉␉cpu_dynamic_fsb = rdmsr64(MSR_IA32_EXT_CONFIG) & (1 << 28);␊
409␉␉␉␉␉␉}␊
410␉␉␉␉␉␉␊
411␉␉␉␉␉␉bool cpu_noninteger_bus_ratio = (rdmsr64(MSR_IA32_PERF_STATUS) & (1ULL << 46));␊
412␉␉␉␉␉␉␊
413␉␉␉␉␉␉initial.Control = rdmsr64(MSR_IA32_PERF_STATUS);␊
414␉␉␉␉␉␉␊
415␉␉␉␉␉␉maximum.Control = ((rdmsr64(MSR_IA32_PERF_STATUS) >> 32) & 0x1F3F) | (0x4000 * cpu_noninteger_bus_ratio);␊
416␉␉␉␉␉␉maximum.CID = ((maximum.FID & 0x1F) << 1) | cpu_noninteger_bus_ratio;␊
417␉␉␉␉␉␉␊
418␉␉␉␉␉␉minimum.FID = ((rdmsr64(MSR_IA32_PERF_STATUS) >> 24) & 0x1F) | (0x80 * cpu_dynamic_fsb);␊
419␉␉␉␉␉␉minimum.VID = ((rdmsr64(MSR_IA32_PERF_STATUS) >> 48) & 0x3F);␊
420␉␉␉␉␉␉␊
421␉␉␉␉␉␉if (minimum.FID == 0) ␊
422␉␉␉␉␉␉{␊
423␉␉␉␉␉␉␉uint64_t msr;␊
424␉␉␉␉␉␉␉uint8_t i;␊
425␉␉␉␉␉␉␉// Probe for lowest fid␊
426␉␉␉␉␉␉␉for (i = maximum.FID; i >= 0x6; i--) ␊
427␉␉␉␉␉␉␉{␊
428␉␉␉␉␉␉␉␉msr = rdmsr64(MSR_IA32_PERF_CONTROL);␊
429␉␉␉␉␉␉␉␉wrmsr64(MSR_IA32_PERF_CONTROL, (msr & 0xFFFFFFFFFFFF0000ULL) | (i << 8) | minimum.VID);␊
430␉␉␉␉␉␉␉␉intel_waitforsts();␊
431␉␉␉␉␉␉␉␉minimum.FID = (rdmsr64(MSR_IA32_PERF_STATUS) >> 8) & 0x1F; ␊
432␉␉␉␉␉␉␉␉delay(1);␊
433␉␉␉␉␉␉␉}␊
434␉␉␉␉␉␉␉␊
435␉␉␉␉␉␉␉msr = rdmsr64(MSR_IA32_PERF_CONTROL);␊
436␉␉␉␉␉␉␉wrmsr64(MSR_IA32_PERF_CONTROL, (msr & 0xFFFFFFFFFFFF0000ULL) | (maximum.FID << 8) | maximum.VID);␊
437␉␉␉␉␉␉␉intel_waitforsts();␊
438␉␉␉␉␉␉}␊
439␉␉␉␉␉␉␊
440␉␉␉␉␉␉if (minimum.VID == maximum.VID) ␊
441␉␉␉␉␉␉{␉␊
442␉␉␉␉␉␉␉uint64_t msr;␊
443␉␉␉␉␉␉␉uint8_t i;␊
444␉␉␉␉␉␉␉// Probe for lowest vid␊
445␉␉␉␉␉␉␉for (i = maximum.VID; i > 0xA; i--) ␊
446␉␉␉␉␉␉␉{␊
447␉␉␉␉␉␉␉␉msr = rdmsr64(MSR_IA32_PERF_CONTROL);␊
448␉␉␉␉␉␉␉␉wrmsr64(MSR_IA32_PERF_CONTROL, (msr & 0xFFFFFFFFFFFF0000ULL) | (minimum.FID << 8) | i);␊
449␉␉␉␉␉␉␉␉intel_waitforsts();␊
450␉␉␉␉␉␉␉␉minimum.VID = rdmsr64(MSR_IA32_PERF_STATUS) & 0x3F; ␊
451␉␉␉␉␉␉␉␉delay(1);␊
452␉␉␉␉␉␉␉}␊
453␉␉␉␉␉␉␉␊
454␉␉␉␉␉␉␉msr = rdmsr64(MSR_IA32_PERF_CONTROL);␊
455␉␉␉␉␉␉␉wrmsr64(MSR_IA32_PERF_CONTROL, (msr & 0xFFFFFFFFFFFF0000ULL) | (maximum.FID << 8) | maximum.VID);␊
456␉␉␉␉␉␉␉intel_waitforsts();␊
457␉␉␉␉␉␉}␊
458␉␉␉␉␉␉␊
459␉␉␉␉␉␉minimum.CID = ((minimum.FID & 0x1F) << 1) >> cpu_dynamic_fsb;␊
460␉␉␉␉␉␉␊
461␉␉␉␉␉␉// Sanity check␊
462␉␉␉␉␉␉if (maximum.CID < minimum.CID) ␊
463␉␉␉␉␉␉{␊
464␉␉␉␉␉␉␉DBG("Insane FID values!");␊
465␉␉␉␉␉␉␉p_states_count = 1;␊
466␉␉␉␉␉␉}␊
467␉␉␉␉␉␉else␊
468␉␉␉␉␉␉{␊
469␉␉␉␉␉␉␉// Finalize P-States␊
470␉␉␉␉␉␉␉// Find how many P-States machine supports␊
471␉␉␉␉␉␉␉p_states_count = maximum.CID - minimum.CID + 1;␊
472␉␉␉␉␉␉␉␊
473␉␉␉␉␉␉␉if (p_states_count > 32) ␊
474␉␉␉␉␉␉␉␉p_states_count = 32;␊
475␉␉␉␉␉␉␉␊
476␉␉␉␉␉␉␉uint8_t vidstep;␊
477␉␉␉␉␉␉␉uint8_t i = 0, u, invalid = 0;␊
478␉␉␉␉␉␉␉␊
479␉␉␉␉␉␉␉vidstep = ((maximum.VID << 2) - (minimum.VID << 2)) / (p_states_count - 1);␊
480␉␉␉␉␉␉␉␊
481␉␉␉␉␉␉␉for (u = 0; u < p_states_count; u++) ␊
482␉␉␉␉␉␉␉{␊
483␉␉␉␉␉␉␉␉i = u - invalid;␊
484␉␉␉␉␉␉␉␉␊
485␉␉␉␉␉␉␉␉p_states[i].CID = maximum.CID - u;␊
486␉␉␉␉␉␉␉␉p_states[i].FID = (p_states[i].CID >> 1);␊
487␉␉␉␉␉␉␉␉␊
488␉␉␉␉␉␉␉␉if (p_states[i].FID < 0x6) ␊
489␉␉␉␉␉␉␉␉{␊
490␉␉␉␉␉␉␉␉␉if (cpu_dynamic_fsb) ␊
491␉␉␉␉␉␉␉␉␉␉p_states[i].FID = (p_states[i].FID << 1) | 0x80;␊
492␉␉␉␉␉␉␉␉} ␊
493␉␉␉␉␉␉␉␉else if (cpu_noninteger_bus_ratio) ␊
494␉␉␉␉␉␉␉␉{␊
495␉␉␉␉␉␉␉␉␉p_states[i].FID = p_states[i].FID | (0x40 * (p_states[i].CID & 0x1));␊
496␉␉␉␉␉␉␉␉}␊
497␉␉␉␉␉␉␉␉␊
498␉␉␉␉␉␉␉␉if (i && p_states[i].FID == p_states[i-1].FID)␊
499␉␉␉␉␉␉␉␉␉invalid++;␊
500␉␉␉␉␉␉␉␉␊
501␉␉␉␉␉␉␉␉p_states[i].VID = ((maximum.VID << 2) - (vidstep * u)) >> 2;␊
502␉␉␉␉␉␉␉␉␊
503␉␉␉␉␉␉␉␉uint32_t multiplier = p_states[i].FID & 0x1f;␉␉// = 0x08␊
504␉␉␉␉␉␉␉␉bool half = p_states[i].FID & 0x40;␉␉␉␉␉// = 0x01␊
505␉␉␉␉␉␉␉␉bool dfsb = p_states[i].FID & 0x80;␉␉␉␉␉// = 0x00␊
506␉␉␉␉␉␉␉␉uint32_t fsb = Platform->CPU.FSBFrequency / 1000000; // = 400␊
507␉␉␉␉␉␉␉␉uint32_t halffsb = (fsb + 1) >> 1;␉␉␉␉␉// = 200␊
508␉␉␉␉␉␉␉␉uint32_t frequency = (multiplier * fsb);␉␉␉// = 3200␊
509␉␉␉␉␉␉␉␉␊
510␉␉␉␉␉␉␉␉p_states[i].Frequency = (frequency + (half * halffsb)) >> dfsb;␉// = 3200 + 200 = 3400␊
511␉␉␉␉␉␉␉}␊
512␉␉␉␉␉␉␉␊
513␉␉␉␉␉␉␉p_states_count -= invalid;␊
514␉␉␉␉␉␉}␊
515␉␉␉␉␉} break;␊
516␉␉␉␉␉case CPU_MODEL_FIELDS:␊
517␉␉␉␉␉case CPU_MODEL_DALES:␊
518␉␉␉␉␉case CPU_MODEL_DALES_32NM:␊
519␉␉␉␉␉case CPU_MODEL_NEHALEM: ␊
520␉␉␉␉␉case CPU_MODEL_NEHALEM_EX:␊
521␉␉␉␉␉case CPU_MODEL_WESTMERE:␊
522␉␉␉␉␉case CPU_MODEL_WESTMERE_EX:␊
523␉␉␉␉␉default:␊
524␉␉␉␉␉␉verbose ("Unsupported CPU: P-States not generated !!!\n");␊
525␉␉␉␉␉␉break;␊
526␉␉␉␉}␊
527␉␉␉}␊
528␉␉}␊
529␉␉␊
530␉␉// Generating SSDT␊
531␉␉if (p_states_count > 0) ␊
532␉␉{␉␊
533␉␉␉int i;␊
534␉␉␉␊
535␉␉␉struct aml_chunk* root = aml_create_node(NULL);␊
536␉␉␉aml_add_buffer(root, ssdt_header, sizeof(ssdt_header)); // SSDT header␊
537␉␉␉struct aml_chunk* scop = aml_add_scope(root, "\\_PR_");␊
538␉␉␉struct aml_chunk* name = aml_add_name(scop, "PSS_");␊
539␉␉␉struct aml_chunk* pack = aml_add_package(name);␊
540␉␉␉␊
541␉␉␉for (i = 0; i < p_states_count; i++) ␊
542␉␉␉{␊
543␉␉␉␉struct aml_chunk* pstt = aml_add_package(pack);␊
544␉␉␉␉␊
545␉␉␉␉aml_add_dword(pstt, p_states[i].Frequency);␊
546␉␉␉␉aml_add_dword(pstt, 0x00000000); // Power␊
547␉␉␉␉aml_add_dword(pstt, 0x0000000A); // Latency␊
548␉␉␉␉aml_add_dword(pstt, 0x0000000A); // Latency␊
549␉␉␉␉aml_add_dword(pstt, p_states[i].Control);␊
550␉␉␉␉aml_add_dword(pstt, i+1); // Status␊
551␉␉␉}␊
552␉␉␉␊
553␉␉␉// Add aliaces␊
554␉␉␉for (i = 0; i < acpi_cpu_count; i++) ␊
555␉␉␉{␊
556␉␉␉␉char name[9];␊
557␉␉␉␉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]);␊
558␉␉␉␉␊
559␉␉␉␉scop = aml_add_scope(root, name);␊
560␉␉␉␉aml_add_alias(scop, "PSS_", "_PSS");␊
561␉␉␉}␊
562␉␉␉␊
563␉␉␉aml_calculate_size(root);␊
564␉␉␉␊
565␉␉␉struct acpi_2_ssdt *ssdt = (struct acpi_2_ssdt *)AllocateKernelMemory(root->Size);␊
566␉␉␉␊
567␉␉␉aml_write_node(root, (void*)ssdt, 0);␊
568␉␉␉␊
569␉␉␉ssdt->Length = root->Size;␊
570␉␉␉ssdt->Checksum = 0;␊
571␉␉␉ssdt->Checksum = 256 - checksum8(ssdt, ssdt->Length);␊
572␉␉␉␊
573␉␉␉aml_destroy_node(root);␊
574␉␉␉␊
575␉␉␉//dumpPhysAddr("P-States SSDT content: ", ssdt, ssdt->Length);␊
576␉␉␉␊
577␉␉␉verbose ("SSDT with CPU P-States generated successfully\n");␊
578␉␉␉␊
579␉␉␉return ssdt;␊
580␉␉}␊
581␉}␊
582␉else ␊
583␉{␊
584␉␉verbose ("ACPI CPUs not found: P-States not generated !!!\n");␊
585␉}␊
586␉␊
587␉return NULL;␊
588}␊
589␊
590struct acpi_2_fadt *patch_fadt(struct acpi_2_fadt *fadt, struct acpi_2_dsdt *new_dsdt)␊
591{␊
592␉extern void setupSystemType(); ␊
593␉␊
594␉struct acpi_2_fadt *fadt_mod;␊
595␉bool fadt_rev2_needed = false;␊
596␉bool fix_restart;␊
597␉const char * value;␊
598␉␊
599␉// Restart Fix␊
600␉if (Platform->CPU.Vendor == 0x756E6547) {␉/* Intel */␊
601␉␉fix_restart = true;␊
602␉␉getBoolForKey(kRestartFix, &fix_restart, &bootInfo->bootConfig);␊
603␉} else {␊
604␉␉verbose ("Not an Intel platform: Restart Fix not applied !!!\n");␊
605␉␉fix_restart = false;␊
606␉}␊
607␉␊
608␉if (fix_restart) fadt_rev2_needed = true;␊
609␉␊
610␉// Allocate new fadt table␊
611␉if (fadt->Length < 0x84 && fadt_rev2_needed)␊
612␉{␊
613␉␉fadt_mod=(struct acpi_2_fadt *)AllocateKernelMemory(0x84);␊
614␉␉memcpy(fadt_mod, fadt, fadt->Length);␊
615␉␉fadt_mod->Length = 0x84;␊
616␉␉fadt_mod->Revision = 0x02; // FADT rev 2 (ACPI 1.0B MS extensions)␊
617␉}␊
618␉else␊
619␉{␊
620␉␉fadt_mod=(struct acpi_2_fadt *)AllocateKernelMemory(fadt->Length);␊
621␉␉memcpy(fadt_mod, fadt, fadt->Length);␊
622␉}␊
623␉// Determine system type / PM_Model␊
624␉if ( (value=getStringForKey(kSystemType, &bootInfo->bootConfig))!=NULL)␊
625␉{␊
626␉␉if (Platform->Type > 6) ␊
627␉␉{␊
628␉␉␉if(fadt_mod->PM_Profile<=6)␊
629␉␉␉␉Platform->Type = fadt_mod->PM_Profile; // get the fadt if correct␊
630␉␉␉else ␊
631␉␉␉␉Platform->Type = 1;␉␉/* Set a fixed value (Desktop) */␊
632␉␉␉verbose("Error: system-type must be 0..6. Defaulting to %d !\n", Platform->Type);␊
633␉␉}␊
634␉␉else␊
635␉␉␉Platform->Type = (unsigned char) strtoul(value, NULL, 10);␊
636␉}␊
637␉// Set PM_Profile from System-type if only user wanted this value to be forced␊
638␉if (fadt_mod->PM_Profile != Platform->Type) ␊
639␉{␊
640␉ if (value) ␊
641␉␉{ // user has overriden the SystemType so take care of it in FACP␊
642␉␉␉verbose("FADT: changing PM_Profile from 0x%02x to 0x%02x\n", fadt_mod->PM_Profile, Platform->Type);␊
643␉␉␉fadt_mod->PM_Profile = Platform->Type;␊
644␉ }␊
645␉ else␊
646␉ { // PM_Profile has a different value and no override has been set, so reflect the user value to ioregs␊
647␉␉␉Platform->Type = fadt_mod->PM_Profile <= 6 ? fadt_mod->PM_Profile : 1;␊
648␉ } ␊
649␉}␊
650␉// We now have to write the systemm-type in ioregs: we cannot do it before in setupDeviceTree()␊
651␉// because we need to take care of facp original content, if it is correct.␊
652␉setupSystemType();␊
653␉␊
654␉// Patch FADT to fix restart␊
655␉if (fix_restart)␊
656␉{␊
657␉␉fadt_mod->Flags|= 0x400;␊
658␉␉fadt_mod->Reset_SpaceID␉␉= 0x01; // System I/O␊
659␉␉fadt_mod->Reset_BitWidth␉= 0x08; // 1 byte␊
660␉␉fadt_mod->Reset_BitOffset␉= 0x00; // Offset 0␊
661␉␉fadt_mod->Reset_AccessWidth␉= 0x01; // Byte access␊
662␉␉fadt_mod->Reset_Address␉␉= 0x0cf9; // Address of the register␊
663␉␉fadt_mod->Reset_Value␉␉= 0x06; // Value to write to reset the system␊
664␉␉verbose("FADT: Restart Fix applied!\n");␊
665␉}␊
666␉␊
667␉// Patch DSDT Address if we have loaded DSDT.aml␊
668␉if(new_dsdt)␊
669␉{␊
670␉␉DBG("DSDT: Old @%x,%x, ",fadt_mod->DSDT,fadt_mod->X_DSDT);␊
671␉␉␊
672␉␉␊
673␉␉// Insert old dsdt into the IORegistery␊
674␉␉Node* node = DT__FindNode("/dsdt", false);␊
675␉␉if(node == NULL)␊
676␉␉{␊
677␉␉␉// Only add if not already here␊
678␉␉␉Node* node = DT__FindNode("/", false);␊
679␊
680␉␉␉if(node != NULL)␊
681␉␉␉{␊
682␉␉␉␉node = DT__AddChild(node, "dsdt");␊
683␉␉␉␉␊
684␉␉␉␉struct acpi_2_dsdt *dsdt;␊
685␉␉␉␉dsdt = (struct acpi_2_dsdt*) (fadt_mod->DSDT);␊
686␉␉␉␉DT__AddProperty(node, "originaldsdt", (dsdt->Length + sizeof(struct acpi_2_dsdt) - 1), (void*)dsdt);␉/// Insert old dsdt. Length is header length (36) + dsdt length␊
687␉␉␉␉␊
688␉␉␉}␊
689␉␉}␉␉␉␊
690␉␉␊
691␉␉fadt_mod->DSDT=(uint32_t)new_dsdt;␊
692␉␉if ((uint32_t)(&(fadt_mod->X_DSDT))-(uint32_t)fadt_mod+8<=fadt_mod->Length)␊
693␉␉␉fadt_mod->X_DSDT=(uint32_t)new_dsdt;␊
694␉␉␊
695␉␉DBG("New @%x,%x\n",fadt_mod->DSDT,fadt_mod->X_DSDT);␊
696␉␉␊
697␉␉verbose("FADT: Using custom DSDT!\n");␊
698␉}␊
699␉␊
700␉// Correct the checksum␊
701␉fadt_mod->Checksum=0;␊
702␉fadt_mod->Checksum=256-checksum8(fadt_mod,fadt_mod->Length);␊
703␉␊
704␉return fadt_mod;␊
705}␊
706␊
707/* Setup ACPI without replacing DSDT. */␊
708int setupAcpiNoMod()␊
709{␊
710␉//␉addConfigurationTable(&gEfiAcpiTableGuid, getAddressOfAcpiTable(), "ACPI");␊
711␉//␉addConfigurationTable(&gEfiAcpi20TableGuid, getAddressOfAcpi20Table(), "ACPI_20");␊
712␉/* XXX aserebln why uint32 cast if pointer is uint64 ? */␊
713␉acpi10_p = (uint32_t)getAddressOfAcpiTable();␊
714␉acpi20_p = (uint32_t)getAddressOfAcpi20Table();␊
715␉addConfigurationTable(&gEfiAcpiTableGuid, &acpi10_p, "ACPI");␊
716␉if(acpi20_p) addConfigurationTable(&gEfiAcpi20TableGuid, &acpi20_p, "ACPI_20");␊
717␉return 1;␊
718}␊
719␊
720/* Setup ACPI. Replace DSDT if DSDT.aml is found */␊
721int setupAcpi(void)␊
722{␊
723␉int version;␊
724␉void *new_dsdt;␊
725␉␊
726␉const char *filename;␊
727␉char dirSpec[128];␊
728␉int len = 0;␊
729␉␊
730␉// Try using the file specified with the DSDT option␊
731␉if (getValueForKey(kDSDT, &filename, &len, &bootInfo->bootConfig))␊
732␉{␊
733␉␉sprintf(dirSpec, filename);␊
734␉}␊
735␉else␊
736␉{␊
737␉␉sprintf(dirSpec, "DSDT.aml");␊
738␉}␊
739␉␊
740␉// Load replacement DSDT␊
741␉new_dsdt = loadACPITable(dirSpec);␊
742␉// Mozodojo: going to patch FACP and load SSDT's even if DSDT.aml is not present␊
743␉/*if (!new_dsdt)␊
744␉ {␊
745␉ return setupAcpiNoMod();␊
746␉ }*/␊
747␉␊
748␉// Mozodojo: Load additional SSDTs␊
749␉struct acpi_2_ssdt *new_ssdt[32]; // 30 + 2 additional tables for pss & cst␊
750␉int ssdt_count=0;␊
751␉␊
752␉// SSDT Options␊
753␉bool drop_ssdt=false, generate_pstates=false, generate_cstates=false; ␊
754␉␊
755␉getBoolForKey(kDropSSDT, &drop_ssdt, &bootInfo->bootConfig);␊
756␉getBoolForKey(kGeneratePStates, &generate_pstates, &bootInfo->bootConfig);␊
757␉getBoolForKey(kGenerateCStates, &generate_cstates, &bootInfo->bootConfig);␊
758␉␊
759␉{␊
760␉␉int i;␊
761␉␉␊
762␉␉for (i=0; i<30; i++)␊
763␉␉{␊
764␉␉␉char filename[512];␊
765␉␉␉␊
766␉␉␉sprintf(filename, i>0?"SSDT-%d.aml":"SSDT.aml", i);␊
767␉␉␉␊
768␉␉␉if(new_ssdt[ssdt_count] = loadACPITable(filename)) ␊
769␉␉␉{␉␉␉␉␊
770␉␉␉␉ssdt_count++;␊
771␉␉␉}␊
772␉␉␉else ␊
773␉␉␉{␊
774␉␉␉␉break;␊
775␉␉␉}␊
776␉␉}␊
777␉}␊
778␉␊
779␉// Do the same procedure for both versions of ACPI␊
780␉for (version=0; version<2; version++) {␊
781␉␉struct acpi_2_rsdp *rsdp, *rsdp_mod;␊
782␉␉struct acpi_2_rsdt *rsdt, *rsdt_mod;␊
783␉␉int rsdplength;␊
784␉␉␊
785␉␉// Find original rsdp␊
786␉␉rsdp=(struct acpi_2_rsdp *)(version?getAddressOfAcpi20Table():getAddressOfAcpiTable());␊
787␉␉if (!rsdp)␊
788␉␉{␊
789␉␉␉DBG("No ACPI version %d found. Ignoring\n", version+1);␊
790␉␉␉if (version)␊
791␉␉␉␉addConfigurationTable(&gEfiAcpi20TableGuid, NULL, "ACPI_20");␊
792␉␉␉else␊
793␉␉␉␉addConfigurationTable(&gEfiAcpiTableGuid, NULL, "ACPI");␊
794␉␉␉continue;␊
795␉␉}␊
796␉␉rsdplength=version?rsdp->Length:20;␊
797␉␉␊
798␉␉DBG("RSDP version %d found @%x. Length=%d\n",version+1,rsdp,rsdplength);␊
799␉␉␊
800␉␉/* FIXME: no check that memory allocation succeeded ␊
801␉␉ * Copy and patch RSDP,RSDT, XSDT and FADT␊
802␉␉ * For more info see ACPI Specification pages 110 and following␊
803␉␉ */␊
804␉␉␊
805␉␉rsdp_mod=(struct acpi_2_rsdp *) AllocateKernelMemory(rsdplength);␊
806␉␉memcpy(rsdp_mod, rsdp, rsdplength); ␊
807␉␉rsdt=(struct acpi_2_rsdt *)(rsdp->RsdtAddress);␊
808␉␉␊
809␉␉DBG("RSDT @%x, Length %d\n",rsdt, rsdt->Length);␊
810␉␉␊
811␉␉if (rsdt && (uint32_t)rsdt !=0xffffffff && rsdt->Length<0x10000)␊
812␉␉{␊
813␉␉␉uint32_t *rsdt_entries;␊
814␉␉␉int rsdt_entries_num;␊
815␉␉␉int dropoffset=0, i;␊
816␉␉␉␊
817␉␉␉// mozo: using malloc cos I didn't found how to free already allocated kernel memory␊
818␉␉␉rsdt_mod=(struct acpi_2_rsdt *)malloc(rsdt->Length); ␊
819␉␉␉memcpy (rsdt_mod, rsdt, rsdt->Length);␊
820␉␉␉rsdp_mod->RsdtAddress=(uint32_t)rsdt_mod;␊
821␉␉␉rsdt_entries_num=(rsdt_mod->Length-sizeof(struct acpi_2_rsdt))/4;␊
822␉␉␉rsdt_entries=(uint32_t *)(rsdt_mod+1);␊
823␉␉␉for (i=0;i<rsdt_entries_num;i++)␊
824␉␉␉{␊
825␉␉␉␉char *table=(char *)(rsdt_entries[i]);␊
826␉␉␉␉if (!table)␊
827␉␉␉␉␉continue;␊
828␉␉␉␉␊
829␉␉␉␉DBG("TABLE %c%c%c%c,",table[0],table[1],table[2],table[3]);␊
830␉␉␉␉␊
831␉␉␉␉rsdt_entries[i-dropoffset]=rsdt_entries[i];␊
832␉␉␉␉␊
833␉␉␉␉if (drop_ssdt && tableSign(table, "SSDT"))␊
834␉␉␉␉{␊
835␉␉␉␉␉dropoffset++;␊
836␉␉␉␉␉continue;␊
837␉␉␉␉}␊
838␉␉␉␉if (tableSign(table, "DSDT"))␊
839␉␉␉␉{␊
840␉␉␉␉␉DBG("DSDT found\n");␊
841␉␉␉␉␉␊
842␉␉␉␉␉if(new_dsdt)␊
843␉␉␉␉␉␉rsdt_entries[i-dropoffset]=(uint32_t)new_dsdt;␊
844␉␉␉␉␉␊
845␉␉␉␉␉continue;␊
846␉␉␉␉}␊
847␉␉␉␉if (tableSign(table, "FACP"))␊
848␉␉␉␉{␊
849␉␉␉␉␉struct acpi_2_fadt *fadt, *fadt_mod;␊
850␉␉␉␉␉fadt=(struct acpi_2_fadt *)rsdt_entries[i];␊
851␉␉␉␉␉␊
852␉␉␉␉␉DBG("FADT found @%x, Length %d\n",fadt, fadt->Length);␊
853␉␉␉␉␉␊
854␉␉␉␉␉if (!fadt || (uint32_t)fadt == 0xffffffff || fadt->Length>0x10000)␊
855␉␉␉␉␉{␊
856␉␉␉␉␉␉printf("FADT incorrect. Not modified\n");␊
857␉␉␉␉␉␉continue;␊
858␉␉␉␉␉}␊
859␉␉␉␉␉␊
860␉␉␉␉␉fadt_mod = patch_fadt(fadt, new_dsdt);␊
861␉␉␉␉␉rsdt_entries[i-dropoffset]=(uint32_t)fadt_mod;␊
862␉␉␉␉␉␊
863␉␉␉␉␉// Generate _CST SSDT␊
864␉␉␉␉␉if (generate_cstates && (new_ssdt[ssdt_count] = generate_cst_ssdt(fadt_mod)))␊
865␉␉␉␉␉{␊
866␉␉␉␉␉␉generate_cstates = false; // Generate SSDT only once!␊
867␉␉␉␉␉␉ssdt_count++;␊
868␉␉␉␉␉}␊
869␉␉␉␉␉␊
870␉␉␉␉␉// Generating _PSS SSDT␊
871␉␉␉␉␉if (generate_pstates && (new_ssdt[ssdt_count] = generate_pss_ssdt((void*)fadt_mod->DSDT)))␊
872␉␉␉␉␉{␊
873␉␉␉␉␉␉generate_pstates = false; // Generate SSDT only once!␊
874␉␉␉␉␉␉ssdt_count++;␊
875␉␉␉␉␉}␊
876␉␉␉␉␉␊
877␉␉␉␉␉continue;␊
878␉␉␉␉}␊
879␉␉␉}␊
880␉␉␉DBG("\n");␊
881␉␉␉␊
882␉␉␉// Allocate rsdt in Kernel memory area␊
883␉␉␉rsdt_mod->Length += 4*ssdt_count - 4*dropoffset;␊
884␉␉␉struct acpi_2_rsdt *rsdt_copy = (struct acpi_2_rsdt *)AllocateKernelMemory(rsdt_mod->Length);␊
885␉␉␉memcpy (rsdt_copy, rsdt_mod, rsdt_mod->Length);␊
886␉␉␉free(rsdt_mod); rsdt_mod = rsdt_copy;␊
887␉␉␉rsdp_mod->RsdtAddress=(uint32_t)rsdt_mod;␊
888␉␉␉rsdt_entries_num=(rsdt_mod->Length-sizeof(struct acpi_2_rsdt))/4;␊
889␉␉␉rsdt_entries=(uint32_t *)(rsdt_mod+1);␊
890␉␉␉␊
891␉␉␉// Mozodojo: Insert additional SSDTs into RSDT␊
892␉␉␉if(ssdt_count>0)␊
893␉␉␉{␊
894␉␉␉␉int j;␊
895␉␉␉␉␊
896␉␉␉␉for (j=0; j<ssdt_count; j++)␊
897␉␉␉␉␉rsdt_entries[i-dropoffset+j]=(uint32_t)new_ssdt[j];␊
898␉␉␉␉␊
899␉␉␉␉verbose("RSDT: Added %d SSDT table(s)\n", ssdt_count);␊
900␉␉␉}␊
901␉␉␉␊
902␉␉␉// Correct the checksum of RSDT␊
903␉␉␉DBG("RSDT: Original checksum %d, ", rsdt_mod->Checksum);␊
904␉␉␉␊
905␉␉␉rsdt_mod->Checksum=0;␊
906␉␉␉rsdt_mod->Checksum=256-checksum8(rsdt_mod,rsdt_mod->Length);␊
907␉␉␉␊
908␉␉␉DBG("New checksum %d at %x\n", rsdt_mod->Checksum,rsdt_mod);␊
909␉␉}␊
910␉␉else␊
911␉␉{␊
912␉␉␉rsdp_mod->RsdtAddress=0;␊
913␉␉␉printf("RSDT not found or RSDT incorrect\n");␊
914␉␉}␊
915␉␉␊
916␉␉if (version)␊
917␉␉{␊
918␉␉␉struct acpi_2_xsdt *xsdt, *xsdt_mod;␊
919␉␉␉␊
920␉␉␉// FIXME: handle 64-bit address correctly␊
921␉␉␉␊
922␉␉␉xsdt=(struct acpi_2_xsdt*) ((uint32_t)rsdp->XsdtAddress);␊
923␉␉␉DBG("XSDT @%x;%x, Length=%d\n", (uint32_t)(rsdp->XsdtAddress>>32),(uint32_t)rsdp->XsdtAddress,␊
924␉␉␉␉xsdt->Length);␊
925␉␉␉if (xsdt && (uint64_t)rsdp->XsdtAddress<0xffffffff && xsdt->Length<0x10000)␊
926␉␉␉{␊
927␉␉␉␉uint64_t *xsdt_entries;␊
928␉␉␉␉int xsdt_entries_num, i;␊
929␉␉␉␉int dropoffset=0;␊
930␉␉␉␉␊
931␉␉␉␉// mozo: using malloc cos I didn't found how to free already allocated kernel memory␊
932␉␉␉␉xsdt_mod=(struct acpi_2_xsdt*)malloc(xsdt->Length); ␊
933␉␉␉␉memcpy(xsdt_mod, xsdt, xsdt->Length);␊
934␉␉␉␉rsdp_mod->XsdtAddress=(uint32_t)xsdt_mod;␊
935␉␉␉␉xsdt_entries_num=(xsdt_mod->Length-sizeof(struct acpi_2_xsdt))/8;␊
936␉␉␉␉xsdt_entries=(uint64_t *)(xsdt_mod+1);␊
937␉␉␉␉for (i=0;i<xsdt_entries_num;i++)␊
938␉␉␉␉{␊
939␉␉␉␉␉char *table=(char *)((uint32_t)(xsdt_entries[i]));␊
940␉␉␉␉␉if (!table)␊
941␉␉␉␉␉␉continue;␊
942␉␉␉␉␉␊
943␉␉␉␉␉xsdt_entries[i-dropoffset]=xsdt_entries[i];␊
944␉␉␉␉␉␊
945␉␉␉␉␉if (drop_ssdt && tableSign(table, "SSDT"))␊
946␉␉␉␉␉{␊
947␉␉␉␉␉␉dropoffset++;␊
948␉␉␉␉␉␉continue;␊
949␉␉␉␉␉}␉␉␉␉␉␊
950␉␉␉␉␉if (tableSign(table, "DSDT"))␊
951␉␉␉␉␉{␊
952␉␉␉␉␉␉DBG("DSDT found\n");␊
953␉␉␉␉␉␉␊
954␉␉␉␉␉␉if (new_dsdt) ␊
955␉␉␉␉␉␉␉xsdt_entries[i-dropoffset]=(uint32_t)new_dsdt;␊
956␉␉␉␉␉␉␊
957␉␉␉␉␉␉DBG("TABLE %c%c%c%c@%x,",table[0],table[1],table[2],table[3],xsdt_entries[i]);␊
958␉␉␉␉␉␉␊
959␉␉␉␉␉␉continue;␊
960␉␉␉␉␉}␊
961␉␉␉␉␉if (tableSign(table, "FACP"))␊
962␉␉␉␉␉{␊
963␉␉␉␉␉␉struct acpi_2_fadt *fadt, *fadt_mod;␊
964␉␉␉␉␉␉fadt=(struct acpi_2_fadt *)(uint32_t)xsdt_entries[i];␊
965␉␉␉␉␉␉␊
966␉␉␉␉␉␉DBG("FADT found @%x,%x, Length %d\n",(uint32_t)(xsdt_entries[i]>>32),fadt, ␊
967␉␉␉␉␉␉␉fadt->Length);␊
968␉␉␉␉␉␉␊
969␉␉␉␉␉␉if (!fadt || (uint64_t)xsdt_entries[i] >= 0xffffffff || fadt->Length>0x10000)␊
970␉␉␉␉␉␉{␊
971␉␉␉␉␉␉␉verbose("FADT incorrect or after 4GB. Dropping XSDT\n");␊
972␉␉␉␉␉␉␉goto drop_xsdt;␊
973␉␉␉␉␉␉}␊
974␉␉␉␉␉␉␊
975␉␉␉␉␉␉fadt_mod = patch_fadt(fadt, new_dsdt);␊
976␉␉␉␉␉␉xsdt_entries[i-dropoffset]=(uint32_t)fadt_mod;␊
977␉␉␉␉␉␉␊
978␉␉␉␉␉␉DBG("TABLE %c%c%c%c@%x,",table[0],table[1],table[2],table[3],xsdt_entries[i]);␊
979␉␉␉␉␉␉␊
980␉␉␉␉␉␉// Generate _CST SSDT␊
981␉␉␉␉␉␉if (generate_cstates && (new_ssdt[ssdt_count] = generate_cst_ssdt(fadt_mod))) ␊
982␉␉␉␉␉␉{␊
983␉␉␉␉␉␉␉generate_cstates = false; // Generate SSDT only once!␊
984␉␉␉␉␉␉␉ssdt_count++;␊
985␉␉␉␉␉␉}␊
986␉␉␉␉␉␉␊
987␉␉␉␉␉␉// Generating _PSS SSDT␊
988␉␉␉␉␉␉if (generate_pstates && (new_ssdt[ssdt_count] = generate_pss_ssdt((void*)fadt_mod->DSDT)))␊
989␉␉␉␉␉␉{␊
990␉␉␉␉␉␉␉generate_pstates = false; // Generate SSDT only once!␊
991␉␉␉␉␉␉␉ssdt_count++;␊
992␉␉␉␉␉␉}␊
993␉␉␉␉␉␉␊
994␉␉␉␉␉␉continue;␊
995␉␉␉␉␉}␊
996␉␉␉␉␉␊
997␉␉␉␉␉DBG("TABLE %c%c%c%c@%x,",table[0],table[1],table[2],table[3],xsdt_entries[i]);␊
998␉␉␉␉␉␊
999␉␉␉␉}␊
1000␉␉␉␉␊
1001␉␉␉␉// Allocate xsdt in Kernel memory area␊
1002␉␉␉␉xsdt_mod->Length += 8*ssdt_count - 8*dropoffset;␊
1003␉␉␉␉struct acpi_2_xsdt *xsdt_copy = (struct acpi_2_xsdt *)AllocateKernelMemory(xsdt_mod->Length);␊
1004␉␉␉␉memcpy(xsdt_copy, xsdt_mod, xsdt_mod->Length);␊
1005␉␉␉␉free(xsdt_mod); xsdt_mod = xsdt_copy;␊
1006␉␉␉␉rsdp_mod->XsdtAddress=(uint32_t)xsdt_mod;␊
1007␉␉␉␉xsdt_entries_num=(xsdt_mod->Length-sizeof(struct acpi_2_xsdt))/8;␊
1008␉␉␉␉xsdt_entries=(uint64_t *)(xsdt_mod+1);␊
1009␉␉␉␉␊
1010␉␉␉␉// Mozodojo: Insert additional SSDTs into XSDT␊
1011␉␉␉␉if(ssdt_count>0)␊
1012␉␉␉␉{␊
1013␉␉␉␉␉int j;␊
1014␉␉␉␉␉␊
1015␉␉␉␉␉for (j=0; j<ssdt_count; j++)␊
1016␉␉␉␉␉␉xsdt_entries[i-dropoffset+j]=(uint32_t)new_ssdt[j];␊
1017␉␉␉␉␉␊
1018␉␉␉␉␉verbose("Added %d SSDT table(s) into XSDT\n", ssdt_count);␊
1019␉␉␉␉}␊
1020␉␉␉␉␊
1021␉␉␉␉// Correct the checksum of XSDT␊
1022␉␉␉␉xsdt_mod->Checksum=0;␊
1023␉␉␉␉xsdt_mod->Checksum=256-checksum8(xsdt_mod,xsdt_mod->Length);␊
1024␉␉␉}␊
1025␉␉␉else␊
1026␉␉␉{␊
1027␉␉␉drop_xsdt:␊
1028␉␉␉␉␊
1029␉␉␉␉DBG("About to drop XSDT\n");␊
1030␉␉␉␉␊
1031␉␉␉␉/*FIXME: Now we just hope that if MacOS doesn't find XSDT it reverts to RSDT. ␊
1032␉␉␉␉ * A Better strategy would be to generate␊
1033␉␉␉␉ */␊
1034␉␉␉␉␊
1035␉␉␉␉rsdp_mod->XsdtAddress=0xffffffffffffffffLL;␊
1036␉␉␉␉verbose("XSDT not found or XSDT incorrect\n");␊
1037␉␉␉}␊
1038␉␉}␊
1039␉␉␊
1040␉␉// Correct the checksum of RSDP ␊
1041␉␉␊
1042␉␉DBG("RSDP: Original checksum %d, ", rsdp_mod->Checksum);␊
1043␉␉␊
1044␉␉rsdp_mod->Checksum=0;␊
1045␉␉rsdp_mod->Checksum=256-checksum8(rsdp_mod,20);␊
1046␉␉␊
1047␉␉DBG("New checksum %d\n", rsdp_mod->Checksum);␊
1048␉␉␊
1049␉␉if (version)␊
1050␉␉{␊
1051␉␉␉DBG("RSDP: Original extended checksum %d", rsdp_mod->ExtendedChecksum);␊
1052␉␉␉␊
1053␉␉␉rsdp_mod->ExtendedChecksum=0;␊
1054␉␉␉rsdp_mod->ExtendedChecksum=256-checksum8(rsdp_mod,rsdp_mod->Length);␊
1055␉␉␉␊
1056␉␉␉DBG("New extended checksum %d\n", rsdp_mod->ExtendedChecksum);␊
1057␉␉␉␊
1058␉␉}␊
1059␉␉␊
1060␉␉//verbose("Patched ACPI version %d DSDT\n", version+1);␊
1061␉␉if (version)␊
1062␉␉{␊
1063␉␉␉/* XXX aserebln why uint32 cast if pointer is uint64 ? */␊
1064␉␉␉acpi20_p = (uint32_t)rsdp_mod;␊
1065␉␉␉addConfigurationTable(&gEfiAcpi20TableGuid, &acpi20_p, "ACPI_20");␊
1066␉␉}␊
1067␉␉else␊
1068␉␉{␊
1069␉␉␉/* XXX aserebln why uint32 cast if pointer is uint64 ? */␊
1070␉␉␉acpi10_p = (uint32_t)rsdp_mod;␊
1071␉␉␉addConfigurationTable(&gEfiAcpiTableGuid, &acpi10_p, "ACPI");␊
1072␉␉}␊
1073␉}␊
1074#if DEBUG_ACPI␊
1075␉printf("Press a key to continue... (DEBUG_ACPI)\n");␊
1076␉getc();␊
1077#endif␊
1078␉return 1;␊
1079}␊
1080

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