if(*(uint64_t *)acpi_addr == ACPI_SIGNATURE_UINT64_LE)␊ |
{␊ |
uint8_t csum = checksum8(acpi_addr, 20);␊ |
␉␉␉␊ |
␊ |
/* Only assume this is a 2.0 or better table if the revision is greater than 0␊ |
* NOTE: ACPI 3.0 spec only seems to say that 1.0 tables have revision 1␊ |
* and that the current revision is 2.. I am going to assume that rev > 0 is 2.0.␊ |
*/␊ |
␉␉␉␊ |
␊ |
if(csum == 0 && (((struct acpi_2_rsdp*)acpi_addr)->Revision > 0))␊ |
{␊ |
uint8_t csum2 = checksum8(acpi_addr, sizeof(struct acpi_2_rsdp));␊ |
|
}␊ |
return NULL;␊ |
}␊ |
/** The folowing ACPI Table search algo. should be reused anywhere needed:*/␊ |
␊ |
/* The folowing ACPI Table search algo. should be reused anywhere needed:*/␊ |
int search_and_get_acpi_fd(const char * filename, const char ** outDirspec)␊ |
{␊ |
␉int fd = 0;␊ |
|
␉fd = open(dirSpec, 0);␊ |
␉if (fd < 0)␊ |
␉{␉␊ |
␉␉sprintf(dirSpec, "/Extra/%s", filename); ␊ |
␉␉sprintf(dirSpec, "/Extra/%s", filename);␊ |
␉␉fd = open(dirSpec, 0);␊ |
␉␉if (fd < 0)␊ |
␉␉{␊ |
|
␉return fd;␊ |
}␊ |
␊ |
␊ |
void *loadACPITable (const char * filename)␊ |
{␊ |
␉void *tableAddr;␊ |
␉const char * dirspec=NULL;␊ |
␉␊ |
␊ |
␉int fd = search_and_get_acpi_fd(filename, &dirspec);␊ |
␉␊ |
␊ |
␉if (fd>=0)␊ |
␉{␊ |
␉␉tableAddr=(void*)AllocateKernelMemory(file_size (fd));␊ |
|
void get_acpi_cpu_names(unsigned char* dsdt, uint32_t length)␊ |
{␊ |
␉uint32_t i;␊ |
␊ |
␉// DBG("start finding cpu names. length %d\n", length);␊ |
␊ |
␉for (i=0; i<length-7; i++) ␊ |
␉{␊ |
␉␉if (dsdt[i] == 0x5B && dsdt[i+1] == 0x83) // ProcessorOP␊ |
|
␉␉// DBG("dsdt: %x%x\n", dsdt[i], dsdt[i+1]);␊ |
␊ |
␉␉␉uint32_t offset = i + 3 + (dsdt[i+2] >> 6);␊ |
␉␉␉␊ |
␊ |
␉␉␉bool add_name = true;␊ |
␊ |
␉␉␉uint8_t j;␊ |
␉␉␉␊ |
␊ |
␉␉␉for (j=0; j<4; j++) ␊ |
␉␉␉{␊ |
␉␉␉␉char c = dsdt[offset+j];␊ |
␉␉␉␉␊ |
␊ |
␉␉␉␉if (!aml_isvalidchar(c)) ␊ |
␉␉␉␉{␊ |
␉␉␉␉␉add_name = false;␊ |
|
␉␉␉␉␉break;␊ |
␉␉␉␉}␊ |
␉␉␉}␊ |
␉␉␉␊ |
␉␉␉if (add_name) ␊ |
␊ |
␉␉␉if (add_name)␊ |
␉␉␉{␊ |
␉␉␉␉acpi_cpu_name[acpi_cpu_count] = malloc(4);␊ |
␉␉␉␉memcpy(acpi_cpu_name[acpi_cpu_count], dsdt+offset, 4);␊ |
|
␉␉0x01, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,␊ |
␉␉0x00, 0x00, 0x01, 0x79, 0x00␊ |
␉};␊ |
␉␊ |
␊ |
␉char resource_template_register_systemio[] =␊ |
␉{␊ |
␉␉0x11, 0x14, 0x0A, 0x11, 0x82, 0x0C, 0x00, 0x01,␊ |
␉␉0x08, 0x00, 0x00, 0x15, 0x04, 0x00, 0x00, 0x00,␊ |
␉␉0x00, 0x00, 0x00, 0x79, 0x00,␊ |
␉};␊ |
␉␊ |
␊ |
␉if (Platform.CPU.Vendor != 0x756E6547) {␊ |
␉␉verbose ("Not an Intel platform: C-States will not be generated !!!\n");␊ |
␉␉return NULL;␊ |
␉}␊ |
␉␊ |
␊ |
␉if (fadt == NULL) {␊ |
␉␉verbose ("FACP not exists: C-States will not be generated !!!\n");␊ |
␉␉return NULL;␊ |
␉}␊ |
␉␊ |
␊ |
␉struct acpi_2_dsdt* dsdt = (void*)fadt->DSDT;␊ |
␉␊ |
␊ |
␉if (dsdt == NULL) {␊ |
␉␉verbose ("DSDT not found: C-States will not be generated !!!\n");␊ |
␉␉return NULL;␊ |
␉}␊ |
␉␊ |
␊ |
␉if (acpi_cpu_count == 0)␊ |
␉␉get_acpi_cpu_names((void*)dsdt, dsdt->Length);␊ |
␉␊ |
␊ |
␉if (acpi_cpu_count > 0)␊ |
␉{␊ |
␉␉bool c2_enabled = false;␊ |
␉␉bool c3_enabled = false;␊ |
␉␉bool c4_enabled = false;␊ |
␉␉bool cst_using_systemio = false;␊ |
␉␉␊ |
␊ |
␉␉getBoolForKey(kEnableC2State, &c2_enabled, &bootInfo->chameleonConfig);␊ |
␉␉getBoolForKey(kEnableC3State, &c3_enabled, &bootInfo->chameleonConfig);␊ |
␉␉getBoolForKey(kEnableC4State, &c4_enabled, &bootInfo->chameleonConfig);␊ |
␉␉getBoolForKey(kCSTUsingSystemIO, &cst_using_systemio, &bootInfo->chameleonConfig);␊ |
␉␉␊ |
␊ |
␉␉c2_enabled = c2_enabled | (fadt->C2_Latency < 100);␊ |
␉␉c3_enabled = c3_enabled | (fadt->C3_Latency < 1000);␊ |
␊ |
␉␉unsigned char cstates_count = 1 + (c2_enabled ? 1 : 0) + (c3_enabled ? 1 : 0);␊ |
␉␉␊ |
␊ |
␉␉struct aml_chunk* root = aml_create_node(NULL);␊ |
␉␉aml_add_buffer(root, ssdt_header, sizeof(ssdt_header)); // SSDT header␊ |
␉␉struct aml_chunk* scop = aml_add_scope(root, "\\_PR_");␊ |
␉␉struct aml_chunk* name = aml_add_name(scop, "CST_");␊ |
␉␉struct aml_chunk* pack = aml_add_package(name);␊ |
␉␉aml_add_byte(pack, cstates_count);␊ |
␉␉␊ |
␊ |
␉␉struct aml_chunk* tmpl = aml_add_package(pack);␊ |
␉␉if (cst_using_systemio)␊ |
␉␉{␊ |
|
␉␉␉aml_add_byte(tmpl, 0x01); // C1␊ |
␉␉␉aml_add_word(tmpl, 0x0001); // Latency␊ |
␉␉␉aml_add_dword(tmpl, 0x000003e8); // Power␊ |
␉␉␉␊ |
␊ |
␉␉␉uint8_t p_blk_lo, p_blk_hi;␊ |
␉␉␉␊ |
␊ |
␉␉␉if (c2_enabled) // C2␊ |
␉␉␉{␊ |
␉␉␉␉p_blk_lo = acpi_cpu_p_blk + 4;␊ |
␉␉␉␉p_blk_hi = (acpi_cpu_p_blk + 4) >> 8;␊ |
␉␉␉␉␊ |
␊ |
␉␉␉␉tmpl = aml_add_package(pack);␊ |
␉␉␉␉resource_template_register_systemio[11] = p_blk_lo; // C2␊ |
␉␉␉␉resource_template_register_systemio[12] = p_blk_hi; // C2␊ |
|
␉␉␉␉aml_add_word(tmpl, 0x0040); // Latency␊ |
␉␉␉␉aml_add_dword(tmpl, 0x000001f4); // Power␊ |
␉␉␉}␊ |
␉␉␉␊ |
␊ |
␉␉␉if (c4_enabled) // C4␊ |
␉␉␉{␊ |
␉␉␉␉p_blk_lo = acpi_cpu_p_blk + 5;␊ |
␉␉␉␉p_blk_hi = (acpi_cpu_p_blk + 5) >> 8;␊ |
␉␉␉␉␊ |
␊ |
␉␉␉␉tmpl = aml_add_package(pack);␊ |
␉␉␉␉resource_template_register_systemio[11] = p_blk_lo; // C4␊ |
␉␉␉␉resource_template_register_systemio[12] = p_blk_hi; // C4␊ |
|
␉␉␉{␊ |
␉␉␉␉p_blk_lo = acpi_cpu_p_blk + 5;␊ |
␉␉␉␉p_blk_hi = (acpi_cpu_p_blk + 5) >> 8;␊ |
␉␉␉␉␊ |
␊ |
␉␉␉␉tmpl = aml_add_package(pack);␊ |
␉␉␉␉resource_template_register_systemio[11] = p_blk_lo; // C3␊ |
␉␉␉␉resource_template_register_systemio[12] = p_blk_hi; // C3␊ |
|
␉␉␉aml_add_byte(tmpl, 0x01);␉␉␉// C1␊ |
␉␉␉aml_add_word(tmpl, 0x0001);␉␉␉// Latency␊ |
␉␉␉aml_add_dword(tmpl, 0x000003e8);␉// Power␊ |
␉␉␉␊ |
␊ |
␉␉␉resource_template_register_fixedhw[18] = 0x03;␊ |
␉␉␉␊ |
␊ |
␉␉␉if (c2_enabled) // C2␊ |
␉␉␉{␊ |
␉␉␉␉tmpl = aml_add_package(pack);␊ |
|
␉␉␉␉aml_add_word(tmpl, 0x0040);␉␉␉// Latency␊ |
␉␉␉␉aml_add_dword(tmpl, 0x000001f4);␉// Power␊ |
␉␉␉}␊ |
␉␉␉␊ |
␊ |
␉␉␉if (c4_enabled) // C4␊ |
␉␉␉{␊ |
␉␉␉␉tmpl = aml_add_package(pack);␊ |
|
␉␉␉␉aml_add_dword(tmpl, 0x0000015e);␉// Power␊ |
␉␉␉}␊ |
␉␉}␊ |
␉␉␊ |
␊ |
␉␉// Aliaces␊ |
␉␉int i;␊ |
␉␉for (i = 0; i < acpi_cpu_count; i++) ␊ |
␉␉{␊ |
␉␉␉char name[9];␊ |
␉␉␉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]);␊ |
␉␉␉␊ |
␊ |
␉␉␉scop = aml_add_scope(root, name);␊ |
␉␉␉␉aml_add_alias(scop, "CST_", "_CST");␊ |
␉␉}␊ |
␉␉␊ |
␊ |
␉␉aml_calculate_size(root);␊ |
␉␉␊ |
␊ |
␉␉struct acpi_2_ssdt *ssdt = (struct acpi_2_ssdt *)AllocateKernelMemory(root->Size);␊ |
␉␊ |
␊ |
␉␉aml_write_node(root, (void*)ssdt, 0);␊ |
␉␉␊ |
␊ |
␉␉ssdt->Length = root->Size;␊ |
␉␉ssdt->Checksum = 0;␊ |
␉␉ssdt->Checksum = 256 - checksum8(ssdt, ssdt->Length);␊ |
␉␉␊ |
␊ |
␉␉aml_destroy_node(root);␊ |
␉␉␊ |
␊ |
␉␉// dumpPhysAddr("C-States SSDT content: ", ssdt, ssdt->Length);␊ |
␉␉␊ |
␉␉verbose ("SSDT with CPU C-States generated successfully\n");␊ |
␉␉␊ |
␊ |
␉␉return ssdt;␊ |
␉}␊ |
␉else␊ |
|
}␊ |
␊ |
struct acpi_2_ssdt *generate_pss_ssdt(struct acpi_2_dsdt* dsdt)␊ |
{␉␊ |
{␊ |
␉char ssdt_header[] =␊ |
␉{␊ |
␉␉0x53, 0x53, 0x44, 0x54, 0x7E, 0x00, 0x00, 0x00, /* SSDT.... */␊ |
|
␉␉verbose ("Not an Intel platform: P-States will not be generated !!!\n");␊ |
␉␉return NULL;␊ |
␉}␊ |
␉␊ |
␊ |
␉if (!(Platform.CPU.Features & CPU_FEATURE_MSR)) {␊ |
␉␉verbose ("Unsupported CPU: P-States will not be generated !!! No MSR support\n");␊ |
␉␉return NULL;␊ |
␉}␊ |
␉␊ |
␉if (acpi_cpu_count == 0) ␊ |
␊ |
␉if (acpi_cpu_count == 0)␊ |
␉␉get_acpi_cpu_names((void*)dsdt, dsdt->Length);␊ |
␉␊ |
␉if (acpi_cpu_count > 0) ␊ |
␉if (acpi_cpu_count > 0)␊ |
␉{␊ |
␉␉struct p_state initial, maximum, minimum, p_states[32];␊ |
␉␉uint8_t p_states_count = 0;␉␉␊ |
␉␉␊ |
␉␉uint8_t p_states_count = 0;␊ |
␊ |
␉␉// Retrieving P-States, ported from code by superhai (c)␊ |
␉␉switch (Platform.CPU.Family) {␊ |
␉␉␉case 0x06: ␊ |
␉␉␉case 0x06:␊ |
␉␉␉{␊ |
␉␉␉␉switch (Platform.CPU.Model) ␊ |
␉␉␉␉{␊ |
|
␉␉␉␉␉case CPU_MODEL_ATOM:␉// Intel Atom (45nm)␊ |
␉␉␉␉␉{␊ |
␉␉␉␉␉␉bool cpu_dynamic_fsb = false;␊ |
␉␉␉␉␉␉␊ |
␊ |
␉␉␉␉␉␉if (rdmsr64(MSR_IA32_EXT_CONFIG) & (1 << 27)) ␊ |
␉␉␉␉␉␉{␊ |
␉␉␉␉␉␉␉wrmsr64(MSR_IA32_EXT_CONFIG, (rdmsr64(MSR_IA32_EXT_CONFIG) | (1 << 28))); ␊ |
␉␉␉␉␉␉␉delay(1);␊ |
␉␉␉␉␉␉␉cpu_dynamic_fsb = rdmsr64(MSR_IA32_EXT_CONFIG) & (1 << 28);␊ |
␉␉␉␉␉␉}␊ |
␉␉␉␉␉␉␊ |
␊ |
␉␉␉␉␉␉bool cpu_noninteger_bus_ratio = (rdmsr64(MSR_IA32_PERF_STATUS) & (1ULL << 46));␊ |
␉␉␉␉␉␉␊ |
␊ |
␉␉␉␉␉␉initial.Control = rdmsr64(MSR_IA32_PERF_STATUS);␊ |
␉␉␉␉␉␉␊ |
␊ |
␉␉␉␉␉␉maximum.Control = ((rdmsr64(MSR_IA32_PERF_STATUS) >> 32) & 0x1F3F) | (0x4000 * cpu_noninteger_bus_ratio);␊ |
␉␉␉␉␉␉maximum.CID = ((maximum.FID & 0x1F) << 1) | cpu_noninteger_bus_ratio;␊ |
␉␉␉␉␉␉␊ |
␊ |
␉␉␉␉␉␉minimum.FID = ((rdmsr64(MSR_IA32_PERF_STATUS) >> 24) & 0x1F) | (0x80 * cpu_dynamic_fsb);␊ |
␉␉␉␉␉␉minimum.VID = ((rdmsr64(MSR_IA32_PERF_STATUS) >> 48) & 0x3F);␊ |
␉␉␉␉␉␉␊ |
␊ |
␉␉␉␉␉␉if (minimum.FID == 0) ␊ |
␉␉␉␉␉␉{␊ |
␉␉␉␉␉␉␉uint64_t msr;␊ |
␉␉␉␉␉␉␉uint8_t i;␊ |
␉␉␉␉␉␉␉// Probe for lowest fid␊ |
␉␉␉␉␉␉␉for (i = maximum.FID; i >= 0x6; i--) ␊ |
␉␉␉␉␉␉␉for (i = maximum.FID; i >= 0x6; i--)␊ |
␉␉␉␉␉␉␉{␊ |
␉␉␉␉␉␉␉␉msr = rdmsr64(MSR_IA32_PERF_CONTROL);␊ |
␉␉␉␉␉␉␉␉wrmsr64(MSR_IA32_PERF_CONTROL, (msr & 0xFFFFFFFFFFFF0000ULL) | (i << 8) | minimum.VID);␊ |
|
␉␉␉␉␉␉␉␉minimum.FID = (rdmsr64(MSR_IA32_PERF_STATUS) >> 8) & 0x1F; ␊ |
␉␉␉␉␉␉␉␉delay(1);␊ |
␉␉␉␉␉␉␉}␊ |
␉␉␉␉␉␉␉␊ |
␊ |
␉␉␉␉␉␉␉msr = rdmsr64(MSR_IA32_PERF_CONTROL);␊ |
␉␉␉␉␉␉␉wrmsr64(MSR_IA32_PERF_CONTROL, (msr & 0xFFFFFFFFFFFF0000ULL) | (maximum.FID << 8) | maximum.VID);␊ |
␉␉␉␉␉␉␉intel_waitforsts();␊ |
␉␉␉␉␉␉}␊ |
␉␉␉␉␉␉␊ |
␊ |
␉␉␉␉␉␉if (minimum.VID == maximum.VID) ␊ |
␉␉␉␉␉␉{␉␊ |
␉␉␉␉␉␉{␊ |
␉␉␉␉␉␉␉uint64_t msr;␊ |
␉␉␉␉␉␉␉uint8_t i;␊ |
␉␉␉␉␉␉␉// Probe for lowest vid␊ |
|
␉␉␉␉␉␉␉␉minimum.VID = rdmsr64(MSR_IA32_PERF_STATUS) & 0x3F; ␊ |
␉␉␉␉␉␉␉␉delay(1);␊ |
␉␉␉␉␉␉␉}␊ |
␉␉␉␉␉␉␉␊ |
␊ |
␉␉␉␉␉␉␉msr = rdmsr64(MSR_IA32_PERF_CONTROL);␊ |
␉␉␉␉␉␉␉wrmsr64(MSR_IA32_PERF_CONTROL, (msr & 0xFFFFFFFFFFFF0000ULL) | (maximum.FID << 8) | maximum.VID);␊ |
␉␉␉␉␉␉␉intel_waitforsts();␊ |
␉␉␉␉␉␉}␊ |
␉␉␉␉␉␉␊ |
␊ |
␉␉␉␉␉␉minimum.CID = ((minimum.FID & 0x1F) << 1) >> cpu_dynamic_fsb;␊ |
␉␉␉␉␉␉␊ |
␊ |
␉␉␉␉␉␉// Sanity check␊ |
␉␉␉␉␉␉if (maximum.CID < minimum.CID) ␊ |
␉␉␉␉␉␉{␊ |
␉␉␉␉␉␉␉DBG("Insane FID values!");␊ |
␉␉␉␉␉␉␉DBG("P-States: Insane FID values!");␊ |
␉␉␉␉␉␉␉p_states_count = 0;␊ |
␉␉␉␉␉␉}␊ |
␉␉␉␉␉␉else␊ |
|
␉␉␉␉␉␉␉// Finalize P-States␊ |
␉␉␉␉␉␉␉// Find how many P-States machine supports␊ |
␉␉␉␉␉␉␉p_states_count = maximum.CID - minimum.CID + 1;␊ |
␉␉␉␉␉␉␉␊ |
␊ |
␉␉␉␉␉␉␉if (p_states_count > 32) ␊ |
␉␉␉␉␉␉␉␉p_states_count = 32;␊ |
␉␉␉␉␉␉␉␊ |
␊ |
␉␉␉␉␉␉␉uint8_t vidstep;␊ |
␉␉␉␉␉␉␉uint8_t i = 0, u, invalid = 0;␊ |
␉␉␉␉␉␉␉␊ |
␊ |
␉␉␉␉␉␉␉vidstep = ((maximum.VID << 2) - (minimum.VID << 2)) / (p_states_count - 1);␊ |
␉␉␉␉␉␉␉␊ |
␊ |
␉␉␉␉␉␉␉for (u = 0; u < p_states_count; u++) ␊ |
␉␉␉␉␉␉␉{␊ |
␉␉␉␉␉␉␉␉i = u - invalid;␊ |
␉␉␉␉␉␉␉␉␊ |
␊ |
␉␉␉␉␉␉␉␉p_states[i].CID = maximum.CID - u;␊ |
␉␉␉␉␉␉␉␉p_states[i].FID = (p_states[i].CID >> 1);␊ |
␉␉␉␉␉␉␉␉␊ |
␊ |
␉␉␉␉␉␉␉␉if (p_states[i].FID < 0x6) ␊ |
␉␉␉␉␉␉␉␉{␊ |
␉␉␉␉␉␉␉␉␉if (cpu_dynamic_fsb) ␊ |
␉␉␉␉␉␉␉␉␉␉p_states[i].FID = (p_states[i].FID << 1) | 0x80;␊ |
␉␉␉␉␉␉␉␉} ␊ |
␉␉␉␉␉␉␉␉}␊ |
␉␉␉␉␉␉␉␉else if (cpu_noninteger_bus_ratio) ␊ |
␉␉␉␉␉␉␉␉{␊ |
␉␉␉␉␉␉␉␉␉p_states[i].FID = p_states[i].FID | (0x40 * (p_states[i].CID & 0x1));␊ |
␉␉␉␉␉␉␉␉}␊ |
␉␉␉␉␉␉␉␉␊ |
␊ |
␉␉␉␉␉␉␉␉if (i && p_states[i].FID == p_states[i-1].FID)␊ |
␉␉␉␉␉␉␉␉␉invalid++;␊ |
␉␉␉␉␉␉␉␉␊ |
␊ |
␉␉␉␉␉␉␉␉p_states[i].VID = ((maximum.VID << 2) - (vidstep * u)) >> 2;␊ |
␉␉␉␉␉␉␉␉␊ |
␊ |
␉␉␉␉␉␉␉␉uint32_t multiplier = p_states[i].FID & 0x1f;␉␉// = 0x08␊ |
␉␉␉␉␉␉␉␉bool half = p_states[i].FID & 0x40;␉␉␉␉␉// = 0x01␊ |
␉␉␉␉␉␉␉␉bool dfsb = p_states[i].FID & 0x80;␉␉␉␉␉// = 0x00␊ |
␉␉␉␉␉␉␉␉uint32_t fsb = Platform.CPU.FSBFrequency / 1000000; // = 400␊ |
␉␉␉␉␉␉␉␉uint32_t halffsb = (fsb + 1) >> 1;␉␉␉␉␉// = 200␊ |
␉␉␉␉␉␉␉␉uint32_t frequency = (multiplier * fsb);␉␉␉// = 3200␊ |
␉␉␉␉␉␉␉␉␊ |
␊ |
␉␉␉␉␉␉␉␉p_states[i].Frequency = (frequency + (half * halffsb)) >> dfsb;␉// = 3200 + 200 = 3400␊ |
␉␉␉␉␉␉␉}␊ |
␉␉␉␉␉␉␉␊ |
␊ |
␉␉␉␉␉␉␉p_states_count -= invalid;␊ |
␉␉␉␉␉␉}␊ |
␉␉␉␉␉␉␊ |
␊ |
␉␉␉␉␉␉break;␊ |
␉␉␉␉␉} ␊ |
␉␉␉␉␉}␊ |
␉␉␉␉␉case CPU_MODEL_FIELDS:␉␉// Intel Core i5, i7, Xeon X34xx LGA1156 (45nm)␊ |
␉␉␉␉␉case CPU_MODEL_DALES:␉␉␊ |
␉␉␉␉␉case CPU_MODEL_DALES_32NM:␉// Intel Core i3, i5 LGA1156 (32nm)␊ |
|
minimum.Control = (rdmsr64(MSR_PLATFORM_INFO) >> 40) & 0xff;␊ |
␊ |
␉␉␉␉␉␉verbose("P-States: min 0x%x, max 0x%x\n", minimum.Control, maximum.Control);␉␉␉␊ |
␉␉␉␉␉␉␊ |
␊ |
␉␉␉␉␉␉// Sanity check␊ |
␉␉␉␉␉␉if (maximum.Control < minimum.Control) ␊ |
␉␉␉␉␉␉{␊ |
|
␉␉␉␉␉␉{␊ |
␉␉␉␉␉␉␉uint8_t i;␊ |
␉␉␉␉␉␉␉p_states_count = 0;␊ |
␉␉␉␉␉␉␉␊ |
␊ |
␉␉␉␉␉␉␉for (i = maximum.Control; i >= minimum.Control; i--) ␊ |
␉␉␉␉␉␉␉{␊ |
␉␉␉␉␉␉␉␉p_states[p_states_count].Control = i;␊ |
|
␉␉␉␉␉␉}␊ |
␉␉␉␉␉␉␊ |
␉␉␉␉␉␉break;␊ |
␉␉␉␉␉}␉␊ |
␉␉␉␉␉}␊ |
␉␉␉␉␉default:␊ |
␉␉␉␉␉␉verbose ("Unsupported CPU: P-States not generated !!! Unknown CPU Type\n");␊ |
␉␉␉␉␉␉break;␊ |
␉␉␉␉}␊ |
␉␉␉}␊ |
␉␉}␊ |
␉␉␊ |
␊ |
␉␉// Generating SSDT␊ |
␉␉if (p_states_count > 0) ␊ |
␉␉{␉␊ |
␉␉if (p_states_count > 0)␊ |
␉␉{␊ |
␉␉␉int i;␊ |
␉␉␉␊ |
␊ |
␉␉␉struct aml_chunk* root = aml_create_node(NULL);␊ |
␉␉␉␉aml_add_buffer(root, ssdt_header, sizeof(ssdt_header)); // SSDT header␊ |
␉␉␉␉␉struct aml_chunk* scop = aml_add_scope(root, "\\_PR_");␊ |
␉␉␉␉␉␉struct aml_chunk* name = aml_add_name(scop, "PSS_");␊ |
␉␉␉␉␉␉␉struct aml_chunk* pack = aml_add_package(name);␊ |
␉␉␉␊ |
␉␉␉␉␉␉␉␉for (i = 0; i < p_states_count; i++) ␊ |
␉␉␉␉␉␉␉␉for (i = 0; i < p_states_count; i++)␊ |
␉␉␉␉␉␉␉␉{␊ |
␉␉␉␉␉␉␉␉␉struct aml_chunk* pstt = aml_add_package(pack);␊ |
␉␉␉␉␉␉␉␉␉␊ |
␊ |
␉␉␉␉␉␉␉␉␉aml_add_dword(pstt, p_states[i].Frequency);␊ |
␉␉␉␉␉␉␉␉␉aml_add_dword(pstt, 0x00000000); // Power␊ |
␉␉␉␉␉␉␉␉␉aml_add_dword(pstt, 0x0000000A); // Latency␊ |
|
␉␉␉␉␉␉␉␉␉aml_add_dword(pstt, p_states[i].Control);␊ |
␉␉␉␉␉␉␉␉␉aml_add_dword(pstt, i+1); // Status␊ |
␉␉␉␉␉␉␉␉}␊ |
␉␉␉␉␊ |
␊ |
␉␉␉// Add aliaces␊ |
␉␉␉for (i = 0; i < acpi_cpu_count; i++) ␊ |
␉␉␉{␊ |
␉␉␉␉char name[9];␊ |
␉␉␉␉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]);␊ |
␉␉␉␉␊ |
␊ |
␉␉␉␉scop = aml_add_scope(root, name);␊ |
␉␉␉␉aml_add_alias(scop, "PSS_", "_PSS");␊ |
␉␉␉}␊ |
␉␉␉␊ |
␊ |
␉␉␉aml_calculate_size(root);␊ |
␉␉␉␊ |
␊ |
␉␉␉struct acpi_2_ssdt *ssdt = (struct acpi_2_ssdt *)AllocateKernelMemory(root->Size);␊ |
␉␉␉␊ |
␊ |
␉␉␉aml_write_node(root, (void*)ssdt, 0);␊ |
␉␉␉␊ |
␊ |
␉␉␉ssdt->Length = root->Size;␊ |
␉␉␉ssdt->Checksum = 0;␊ |
␉␉␉ssdt->Checksum = 256 - checksum8(ssdt, ssdt->Length);␊ |
␉␉␉␊ |
␊ |
␉␉␉aml_destroy_node(root);␊ |
␉␉␉␊ |
␊ |
␉␉␉//dumpPhysAddr("P-States SSDT content: ", ssdt, ssdt->Length);␊ |
␉␉␉␊ |
␊ |
␉␉␉verbose ("SSDT with CPU P-States generated successfully\n");␊ |
␉␉␉␊ |
␊ |
␉␉␉return ssdt;␊ |
␉␉}␊ |
␉}␊ |
|
␉{␊ |
␉␉verbose ("ACPI CPUs not found: P-States not generated !!!\n");␊ |
␉}␊ |
␉␊ |
␊ |
␉return NULL;␊ |
}␊ |
␊ |
|
␉bool fadt_rev2_needed = false;␊ |
␉bool fix_restart;␊ |
␉const char * value;␊ |
␉␊ |
␊ |
␉// Restart Fix␊ |
␉if (Platform.CPU.Vendor == 0x756E6547) {␉/* Intel */␊ |
␉␉fix_restart = true;␊ |
|
␉␉verbose ("Not an Intel platform: Restart Fix not applied !!!\n");␊ |
␉␉fix_restart = false;␊ |
␉}␊ |
␉␊ |
␊ |
␉if (fix_restart) fadt_rev2_needed = true;␊ |
␉␊ |
␊ |
␉// Allocate new fadt table␊ |
␉if (fadt->Length < 0x84 && fadt_rev2_needed)␊ |
␉{␊ |
|
␉if (fadt_mod->PM_Profile != Platform.Type) ␊ |
␉{␊ |
␉ if (value) ␊ |
␉␉{ // user has overriden the SystemType so take care of it in FACP␊ |
␉␉␉verbose("FADT: changing PM_Profile from 0x%02x to 0x%02x\n", fadt_mod->PM_Profile, Platform.Type);␊ |
␉␉␉fadt_mod->PM_Profile = Platform.Type;␊ |
␉ { // user has overriden the SystemType so take care of it in FACP␊ |
␉␉verbose("FADT: changing PM_Profile from 0x%02x to 0x%02x\n", fadt_mod->PM_Profile, Platform.Type);␊ |
␉␉fadt_mod->PM_Profile = Platform.Type;␊ |
␉ }␊ |
␉ else␊ |
␉ { // PM_Profile has a different value and no override has been set, so reflect the user value to ioregs␊ |
␉␉␉Platform.Type = fadt_mod->PM_Profile <= 6 ? fadt_mod->PM_Profile : 1;␊ |
␉ Platform.Type = fadt_mod->PM_Profile <= 6 ? fadt_mod->PM_Profile : 1;␊ |
␉ } ␊ |
␉}␊ |
␉// We now have to write the systemm-type in ioregs: we cannot do it before in setupDeviceTree()␊ |
␉// because we need to take care of facp original content, if it is correct.␊ |
␉setupSystemType();␊ |
␉␊ |
␊ |
␉// Patch FADT to fix restart␊ |
␉if (fix_restart)␊ |
␉{␊ |
|
␉␉fadt_mod->Reset_AccessWidth␉= 0x01; // Byte access␊ |
␉␉fadt_mod->Reset_Address␉␉= 0x0cf9; // Address of the register␊ |
␉␉fadt_mod->Reset_Value␉␉= 0x06; // Value to write to reset the system␊ |
␉␉verbose("FADT: Restart Fix applied!\n");␊ |
␉␉verbose("FADT: Restart Fix applied !\n");␊ |
␉}␊ |
␉␊ |
␊ |
␉// Patch DSDT Address if we have loaded DSDT.aml␊ |
␉if(new_dsdt)␊ |
␉{␊ |
␉␉DBG("DSDT: Old @%x,%x, ",fadt_mod->DSDT,fadt_mod->X_DSDT);␊ |
␉␉␊ |
␊ |
␉␉fadt_mod->DSDT=(uint32_t)new_dsdt;␊ |
␉␉if ((uint32_t)(&(fadt_mod->X_DSDT))-(uint32_t)fadt_mod+8<=fadt_mod->Length)␊ |
␉␉␉fadt_mod->X_DSDT=(uint32_t)new_dsdt;␊ |
␉␉␊ |
␊ |
␉␉DBG("New @%x,%x\n",fadt_mod->DSDT,fadt_mod->X_DSDT);␊ |
␉␉␊ |
␉␉verbose("FADT: Using custom DSDT!\n");␊ |
␉}␊ |
␉␊ |
␊ |
␉// Correct the checksum␊ |
␉fadt_mod->Checksum=0;␊ |
␉fadt_mod->Checksum=256-checksum8(fadt_mod,fadt_mod->Length);␊ |
␉␊ |
␊ |
␉return fadt_mod;␊ |
}␊ |
␊ |
/* Setup ACPI without replacing DSDT. */␊ |
int setupAcpiNoMod()␊ |
{␊ |
␉//␉addConfigurationTable(&gEfiAcpiTableGuid, getAddressOfAcpiTable(), "ACPI");␊ |
␉//␉addConfigurationTable(&gEfiAcpi20TableGuid, getAddressOfAcpi20Table(), "ACPI_20");␊ |
//␉addConfigurationTable(&gEfiAcpiTableGuid, getAddressOfAcpiTable(), "ACPI");␊ |
//␉addConfigurationTable(&gEfiAcpi20TableGuid, getAddressOfAcpi20Table(), "ACPI_20");␊ |
␉/* XXX aserebln why uint32 cast if pointer is uint64 ? */␊ |
␉acpi10_p = (uint32_t)getAddressOfAcpiTable();␊ |
␉acpi20_p = (uint32_t)getAddressOfAcpi20Table();␊ |
|
␉{␊ |
␉␉sprintf(dirSpec, "DSDT.aml");␊ |
␉}␊ |
␉␊ |
␊ |
␉// Load replacement DSDT␊ |
␉new_dsdt = loadACPITable(dirSpec);␊ |
␉// Mozodojo: going to patch FACP and load SSDT's even if DSDT.aml is not present␊ |
|
␉ {␊ |
␉ return setupAcpiNoMod();␊ |
␉ }*/␊ |
␉␊ |
␊ |
␉// Mozodojo: Load additional SSDTs␊ |
␉struct acpi_2_ssdt *new_ssdt[32]; // 30 + 2 additional tables for pss & cst␊ |
␉int ssdt_count=0;␊ |
␉␊ |
␊ |
␉// SSDT Options␊ |
␉bool drop_ssdt=false, generate_pstates=false, generate_cstates=false; ␊ |
␉␊ |
␊ |
␉getBoolForKey(kDropSSDT, &drop_ssdt, &bootInfo->chameleonConfig);␊ |
␉getBoolForKey(kGeneratePStates, &generate_pstates, &bootInfo->chameleonConfig);␊ |
␉getBoolForKey(kGenerateCStates, &generate_cstates, &bootInfo->chameleonConfig);␊ |
|
␊ |
␉{␊ |
␉␉int i;␊ |
␉␉␊ |
␊ |
␉␉for (i=0; i<30; i++)␊ |
␉␉{␊ |
␉␉␉char filename[512];␊ |
␊ |
␉␉␉sprintf(filename, i>0?"SSDT-%d.aml":"SSDT.aml", i);␊ |
␉␉␉␊ |
␊ |
␉␉␉if ( (new_ssdt[ssdt_count] = loadACPITable(filename)) )␊ |
␉␉␉{␉␉␉␉␊ |
␉␉␉{␊ |
␉␉␉␉ssdt_count++;␊ |
␉␉␉}␊ |
␉␉␉else ␊ |
|
␉␉␉}␊ |
␉␉}␊ |
␉}␊ |
␉␉␊ |
␊ |
␉// Do the same procedure for both versions of ACPI␊ |
␉for (version=0; version<2; version++) {␊ |
␉␉struct acpi_2_rsdp *rsdp, *rsdp_mod;␊ |
␉␉struct acpi_2_rsdt *rsdt, *rsdt_mod;␊ |
␉␉int rsdplength;␊ |
␉␉␊ |
␊ |
␉␉// Find original rsdp␊ |
␉␉rsdp=(struct acpi_2_rsdp *)(version?getAddressOfAcpi20Table():getAddressOfAcpiTable());␊ |
␉␉if (!rsdp)␊ |
|
␉␉␉continue;␊ |
␉␉}␊ |
␉␉rsdplength=version?rsdp->Length:20;␊ |
␉␉␊ |
␊ |
␉␉DBG("RSDP version %d found @%x. Length=%d\n",version+1,rsdp,rsdplength);␊ |
␉␉␊ |
␊ |
␉␉/* FIXME: no check that memory allocation succeeded ␊ |
␉␉ * Copy and patch RSDP,RSDT, XSDT and FADT␊ |
␉␉ * For more info see ACPI Specification pages 110 and following␊ |
␉␉ */␊ |
␉␉␊ |
␊ |
␉␉rsdp_mod=(struct acpi_2_rsdp *) AllocateKernelMemory(rsdplength);␊ |
␉␉memcpy(rsdp_mod, rsdp, rsdplength); ␊ |
␉␉memcpy(rsdp_mod, rsdp, rsdplength);␊ |
␊ |
␉␉rsdt=(struct acpi_2_rsdt *)(rsdp->RsdtAddress);␊ |
␉␉␊ |
␊ |
␉␉DBG("RSDT @%x, Length %d\n",rsdt, rsdt->Length);␊ |
␉␉␊ |
␉␉if (rsdt && (uint32_t)rsdt !=0xffffffff && rsdt->Length<0x10000)␊ |
|
␉␉␉␉char *table=(char *)(rsdt_entries[i]);␊ |
␉␉␉␉if (!table)␊ |
␉␉␉␉␉continue;␊ |
␉␉␉␉␊ |
␊ |
␉␉␉␉DBG("TABLE %c%c%c%c,",table[0],table[1],table[2],table[3]);␊ |
␉␉␉␉␊ |
␊ |
␉␉␉␉rsdt_entries[i-dropoffset]=rsdt_entries[i];␊ |
␉␉␉␉␊ |
␊ |
␉␉␉␉if (drop_ssdt && tableSign(table, "SSDT"))␊ |
␉␉␉␉{␊ |
␉␉␉␉␉dropoffset++;␊ |
|
␉␉␉␉if (tableSign(table, "DSDT"))␊ |
␉␉␉␉{␊ |
␉␉␉␉␉DBG("DSDT found\n");␊ |
␉␉␉␉␉␊ |
␊ |
␉␉␉␉␉if(new_dsdt)␊ |
␉␉␉␉␉␉rsdt_entries[i-dropoffset]=(uint32_t)new_dsdt;␊ |
␉␉␉␉␉␉␉␉␉␉␊ |
␊ |
␉␉␉␉␉continue;␊ |
␉␉␉␉}␊ |
␉␉␉␉if (tableSign(table, "FACP"))␊ |
␉␉␉␉{␊ |
␉␉␉␉␉struct acpi_2_fadt *fadt, *fadt_mod;␊ |
␉␉␉␉␉fadt=(struct acpi_2_fadt *)rsdt_entries[i];␊ |
␉␉␉␉␉␊ |
␊ |
␉␉␉␉␉DBG("FADT found @%x, Length %d\n",fadt, fadt->Length);␊ |
␉␉␉␉␉␊ |
␊ |
␉␉␉␉␉if (!fadt || (uint32_t)fadt == 0xffffffff || fadt->Length>0x10000)␊ |
␉␉␉␉␉{␊ |
␉␉␉␉␉␉printf("FADT incorrect. Not modified\n");␊ |
|
␉␉␉␉␉␉generate_pstates = false; // Generate SSDT only once!␊ |
␉␉␉␉␉␉ssdt_count++;␊ |
␉␉␉␉␉}␊ |
␉␉␉␉␉␊ |
␊ |
␉␉␉␉␉continue;␊ |
␉␉␉␉}␊ |
␉␉␉}␊ |
␉␉␉DBG("\n");␊ |
␉␉␉␊ |
␊ |
␉␉␉// Allocate rsdt in Kernel memory area␊ |
␉␉␉rsdt_mod->Length += 4*ssdt_count - 4*dropoffset;␊ |
␉␉␉struct acpi_2_rsdt *rsdt_copy = (struct acpi_2_rsdt *)AllocateKernelMemory(rsdt_mod->Length);␊ |
|
␉␉␉rsdp_mod->RsdtAddress=(uint32_t)rsdt_mod;␊ |
␉␉␉rsdt_entries_num=(rsdt_mod->Length-sizeof(struct acpi_2_rsdt))/4;␊ |
␉␉␉rsdt_entries=(uint32_t *)(rsdt_mod+1);␊ |
␉␉␉␊ |
␊ |
␉␉␉// Mozodojo: Insert additional SSDTs into RSDT␊ |
␉␉␉if(ssdt_count>0)␊ |
␉␉␉{␊ |
␉␉␉␉int j;␊ |
␉␉␉␉␊ |
␊ |
␉␉␉␉for (j=0; j<ssdt_count; j++)␊ |
␉␉␉␉␉rsdt_entries[i-dropoffset+j]=(uint32_t)new_ssdt[j];␊ |
␉␉␉␉␉␊ |
␊ |
␉␉␉␉verbose("RSDT: Added %d SSDT table(s)\n", ssdt_count);␊ |
␊ |
␉␉␉}␊ |
␊ |
␉␉␉// Correct the checksum of RSDT␊ |
␉␉␉DBG("RSDT: Original checksum %d, ", rsdt_mod->Checksum);␊ |
␉␉␉␊ |
␊ |
␉␉␉rsdt_mod->Checksum=0;␊ |
␉␉␉rsdt_mod->Checksum=256-checksum8(rsdt_mod,rsdt_mod->Length);␊ |
␉␉␉␊ |
␊ |
␉␉␉DBG("New checksum %d at %x\n", rsdt_mod->Checksum,rsdt_mod);␊ |
␉␉}␊ |
␉␉else␊ |
|
␉␉␉rsdp_mod->RsdtAddress=0;␊ |
␉␉␉printf("RSDT not found or RSDT incorrect\n");␊ |
␉␉}␊ |
␉␉␊ |
␊ |
␉␉if (version)␊ |
␉␉{␊ |
␉␉␉struct acpi_2_xsdt *xsdt, *xsdt_mod;␊ |
␉␉␉␊ |
␊ |
␉␉␉// FIXME: handle 64-bit address correctly␊ |
␉␉␉␊ |
␉␉␉xsdt=(struct acpi_2_xsdt*) ((uint32_t)rsdp->XsdtAddress);␊ |
␉␉␉DBG("XSDT @%x;%x, Length=%d\n", (uint32_t)(rsdp->XsdtAddress>>32),(uint32_t)rsdp->XsdtAddress,␊ |
␉␉␉␉xsdt->Length);␊ |
␉␉␉␉␉xsdt->Length);␊ |
␉␉␉if (xsdt && (uint64_t)rsdp->XsdtAddress<0xffffffff && xsdt->Length<0x10000)␊ |
␉␉␉{␊ |
␉␉␉␉uint64_t *xsdt_entries;␊ |
␉␉␉␉int xsdt_entries_num, i;␊ |
␉␉␉␉int dropoffset=0;␊ |
␉␉␉␉␊ |
␊ |
␉␉␉␉// mozo: using malloc cos I didn't found how to free already allocated kernel memory␊ |
␉␉␉␉xsdt_mod=(struct acpi_2_xsdt*)malloc(xsdt->Length); ␊ |
␉␉␉␉memcpy(xsdt_mod, xsdt, xsdt->Length);␊ |
␊ |
␉␉␉␉rsdp_mod->XsdtAddress=(uint32_t)xsdt_mod;␊ |
␉␉␉␉xsdt_entries_num=(xsdt_mod->Length-sizeof(struct acpi_2_xsdt))/8;␊ |
␉␉␉␉xsdt_entries=(uint64_t *)(xsdt_mod+1);␊ |
|
␉␉␉␉␉char *table=(char *)((uint32_t)(xsdt_entries[i]));␊ |
␉␉␉␉␉if (!table)␊ |
␉␉␉␉␉␉continue;␊ |
␉␉␉␉␉␊ |
␉␉␉␉␉xsdt_entries[i-dropoffset]=xsdt_entries[i];␊ |
␉␉␉␉␉␊ |
␉␉␉␉␉if (drop_ssdt && tableSign(table, "SSDT"))␊ |
␉␉␉␉␉{␊ |
␉␉␉␉␉␉dropoffset++;␊ |
␉␉␉␉␉␉continue;␊ |
␉␉␉␉␉}␉␉␉␉␉␊ |
␉␉␉␉␉}␊ |
␉␉␉␉␉if (tableSign(table, "DSDT"))␊ |
␉␉␉␉␉{␊ |
␉␉␉␉␉␉DBG("DSDT found\n");␊ |
␉␉␉␉␉␉␊ |
␊ |
␉␉␉␉␉␉if (new_dsdt) ␊ |
␉␉␉␉␉␉␉xsdt_entries[i-dropoffset]=(uint32_t)new_dsdt;␊ |
␉␉␉␉␉␉␊ |
␊ |
␉␉␉␉␉␉DBG("TABLE %c%c%c%c@%x,",table[0],table[1],table[2],table[3],xsdt_entries[i]);␊ |
␉␉␉␉␉␉␊ |
␉␉␉␉␉␉continue;␊ |
|
␉␉␉␉␉{␊ |
␉␉␉␉␉␉struct acpi_2_fadt *fadt, *fadt_mod;␊ |
␉␉␉␉␉␉fadt=(struct acpi_2_fadt *)(uint32_t)xsdt_entries[i];␊ |
␉␉␉␉␉␉␊ |
␊ |
␉␉␉␉␉␉DBG("FADT found @%x,%x, Length %d\n",(uint32_t)(xsdt_entries[i]>>32),fadt, ␊ |
␉␉␉␉␉␉␉fadt->Length);␊ |
␉␉␉␉␉␉␊ |
␊ |
␉␉␉␉␉␉if (!fadt || (uint64_t)xsdt_entries[i] >= 0xffffffff || fadt->Length>0x10000)␊ |
␉␉␉␉␉␉{␊ |
␉␉␉␉␉␉␉verbose("FADT incorrect or after 4GB. Dropping XSDT\n");␊ |
␉␉␉␉␉␉␉goto drop_xsdt;␊ |
␉␉␉␉␉␉}␊ |
␉␉␉␉␉␉␊ |
␊ |
␉␉␉␉␉␉fadt_mod = patch_fadt(fadt, new_dsdt);␊ |
␉␉␉␉␉␉xsdt_entries[i-dropoffset]=(uint32_t)fadt_mod;␊ |
␉␉␉␉␉␉␊ |
␊ |
␉␉␉␉␉␉DBG("TABLE %c%c%c%c@%x,",table[0],table[1],table[2],table[3],xsdt_entries[i]);␊ |
␉␉␉␉␉␉␊ |
␊ |
␉␉␉␉␉␉// Generate _CST SSDT␊ |
␉␉␉␉␉␉if (generate_cstates && (new_ssdt[ssdt_count] = generate_cst_ssdt(fadt_mod))) ␊ |
␉␉␉␉␉␉{␊ |
␉␉␉␉␉␉␉generate_cstates = false; // Generate SSDT only once!␊ |
␉␉␉␉␉␉␉ssdt_count++;␊ |
␉␉␉␉␉␉}␊ |
␉␉␉␉␉␉␊ |
␊ |
␉␉␉␉␉␉// Generating _PSS SSDT␊ |
␉␉␉␉␉␉if (generate_pstates && (new_ssdt[ssdt_count] = generate_pss_ssdt((void*)fadt_mod->DSDT)))␊ |
␉␉␉␉␉␉{␊ |
␉␉␉␉␉␉␉generate_pstates = false; // Generate SSDT only once!␊ |
␉␉␉␉␉␉␉ssdt_count++;␊ |
␉␉␉␉␉␉}␊ |
␉␉␉␉␉␉␊ |
␊ |
␉␉␉␉␉␉continue;␊ |
␉␉␉␉␉}␊ |
␉␉␉␉␉␊ |
␊ |
␉␉␉␉␉DBG("TABLE %c%c%c%c@%x,",table[0],table[1],table[2],table[3],xsdt_entries[i]);␊ |
␉␉␉␉␉␊ |
␊ |
␉␉␉␉}␊ |
␉␉␉␉␊ |
␊ |
␉␉␉␉// Allocate xsdt in Kernel memory area␊ |
␉␉␉␉xsdt_mod->Length += 8*ssdt_count - 8*dropoffset;␊ |
␉␉␉␉struct acpi_2_xsdt *xsdt_copy = (struct acpi_2_xsdt *)AllocateKernelMemory(xsdt_mod->Length);␊ |
|
␉␉␉␉rsdp_mod->XsdtAddress=(uint32_t)xsdt_mod;␊ |
␉␉␉␉xsdt_entries_num=(xsdt_mod->Length-sizeof(struct acpi_2_xsdt))/8;␊ |
␉␉␉␉xsdt_entries=(uint64_t *)(xsdt_mod+1);␊ |
␉␉␉␉␊ |
␊ |
␉␉␉␉// Mozodojo: Insert additional SSDTs into XSDT␊ |
␉␉␉␉if(ssdt_count>0)␊ |
␉␉␉␉{␊ |
␉␉␉␉␉int j;␊ |
␉␉␉␉␉␊ |
␊ |
␉␉␉␉␉for (j=0; j<ssdt_count; j++)␊ |
␉␉␉␉␉␉xsdt_entries[i-dropoffset+j]=(uint32_t)new_ssdt[j];␊ |
␉␉␉␉␉␉␊ |
␊ |
␉␉␉␉␉verbose("Added %d SSDT table(s) into XSDT\n", ssdt_count);␊ |
␊ |
␉␉␉␉}␊ |
␊ |
␉␉␉␉// Correct the checksum of XSDT␊ |
|
␉␉␉else␊ |
␉␉␉{␊ |
␉␉␉drop_xsdt:␊ |
␉␉␉␉␊ |
␊ |
␉␉␉␉DBG("About to drop XSDT\n");␊ |
␉␉␉␉␊ |
␊ |
␉␉␉␉/*FIXME: Now we just hope that if MacOS doesn't find XSDT it reverts to RSDT. ␊ |
␉␉␉␉ * A Better strategy would be to generate␊ |
␉␉␉␉ */␊ |
␉␉␉␉␊ |
␊ |
␉␉␉␉rsdp_mod->XsdtAddress=0xffffffffffffffffLL;␊ |
␉␉␉␉verbose("XSDT not found or XSDT incorrect\n");␊ |
␉␉␉␉verbose("XSDT not found or incorrect\n");␊ |
␉␉␉}␊ |
␉␉}␊ |
␉␉␊ |
␊ |
␉␉// Correct the checksum of RSDP ␊ |
␉␉␊ |
␊ |
␉␉DBG("RSDP: Original checksum %d, ", rsdp_mod->Checksum);␊ |
␉␉␊ |
␊ |
␉␉rsdp_mod->Checksum=0;␊ |
␉␉rsdp_mod->Checksum=256-checksum8(rsdp_mod,20);␊ |
␉␉␊ |
␊ |
␉␉DBG("New checksum %d\n", rsdp_mod->Checksum);␊ |
␉␉␊ |
␊ |
␉␉if (version)␊ |
␉␉{␊ |
␉␉␉DBG("RSDP: Original extended checksum %d", rsdp_mod->ExtendedChecksum);␊ |
␉␉␉␊ |
␊ |
␉␉␉rsdp_mod->ExtendedChecksum=0;␊ |
␉␉␉rsdp_mod->ExtendedChecksum=256-checksum8(rsdp_mod,rsdp_mod->Length);␊ |
␉␉␉␊ |
␊ |
␉␉␉DBG("New extended checksum %d\n", rsdp_mod->ExtendedChecksum);␊ |
␉␉␉␊ |
␊ |
␉␉}␊ |
␉␉␊ |
␉␉//verbose("Patched ACPI version %d DSDT\n", version+1);␊ |
|
␉␉}␊ |
␉␉else␊ |
␉␉{␊ |
␉␉␉/* XXX aserebln why uint32 cast if pointer is uint64 ? */␊ |
␉/* XXX aserebln why uint32 cast if pointer is uint64 ? */␊ |
␉␉␉acpi10_p = (uint32_t)rsdp_mod;␊ |
␉␉␉addConfigurationTable(&gEfiAcpiTableGuid, &acpi10_p, "ACPI");␊ |
␉␉}␊ |