diff options
Diffstat (limited to 'src/soc/intel')
| -rw-r--r-- | src/soc/intel/xeon_sp/cpx/acpi.c | 678 |
1 files changed, 339 insertions, 339 deletions
diff --git a/src/soc/intel/xeon_sp/cpx/acpi.c b/src/soc/intel/xeon_sp/cpx/acpi.c index cd497c597b..d7519b1382 100644 --- a/src/soc/intel/xeon_sp/cpx/acpi.c +++ b/src/soc/intel/xeon_sp/cpx/acpi.c @@ -27,22 +27,6 @@ #define SCI_INT_NUM 9 -unsigned long southbridge_write_acpi_tables(const struct device *device, - unsigned long current, struct acpi_rsdp *rsdp) -{ - current = acpi_write_hpet(device, current, rsdp); - current = (ALIGN(current, 16)); - printk(BIOS_DEBUG, "current = %lx\n", current); - return current; -} - -unsigned long acpi_fill_mcfg(unsigned long current) -{ - current += acpi_create_mcfg_mmconfig((acpi_mcfg_mmconfig_t *)current, - CONFIG_MMCONF_BASE_ADDRESS, 0, 0, 255); - return current; -} - static void uncore_inject_dsdt(void) { struct iiostack_resource stack_info = {0}; @@ -109,59 +93,6 @@ static void uncore_inject_dsdt(void) acpigen_pop_len(); } -void southbridge_inject_dsdt(const struct device *device) -{ - struct global_nvs *gnvs; - - gnvs = cbmem_find(CBMEM_ID_ACPI_GNVS); - if (!gnvs) { - gnvs = cbmem_add(CBMEM_ID_ACPI_GNVS, 0x2000); - if (gnvs) - memset(gnvs, 0, sizeof(*gnvs)); - } - - if (gnvs) { - acpi_create_gnvs(gnvs); - /* TODO: tell SMI about it, if HAVE_SMI_HANDLER */ - // apm_control(APM_CNT_GNVS_UPDATE); - - /* Add it to DSDT. */ - printk(BIOS_SPEW, "%s injecting NVSA with 0x%x\n", __FILE__, (uint32_t)gnvs); - acpigen_write_scope("\\"); - acpigen_write_name_dword("NVSA", (uint32_t)gnvs); - acpigen_pop_len(); - } - - /* Add IIOStack ACPI Resource Templates */ - uncore_inject_dsdt(); -} - -void acpi_create_gnvs(struct global_nvs *gnvs) -{ - /* CPU core count */ - gnvs->pcnt = dev_count_cpu(); - printk(BIOS_DEBUG, "%s gnvs->pcnt: %d\n", __func__, gnvs->pcnt); -} - -static unsigned long acpi_madt_irq_overrides(unsigned long current) -{ - int sci = SCI_INT_NUM; - uint16_t flags = MP_IRQ_TRIGGER_LEVEL; - - /* INT_SRC_OVR */ - current += acpi_create_madt_irqoverride((void *)current, 0, 0, 2, 0); - - flags |= soc_madt_sci_irq_polarity(sci); - - /* SCI */ - current += acpi_create_madt_irqoverride((void *)current, 0, sci, sci, flags); - - current += - acpi_create_madt_lapic_nmi((acpi_madt_lapic_nmi_t *) current, 0xff, 0x0d, 1); - - return current; -} - static unsigned long xeonsp_acpi_create_madt_lapics(unsigned long current) { struct device *cpu; @@ -182,276 +113,6 @@ static unsigned long xeonsp_acpi_create_madt_lapics(unsigned long current) return current; } -unsigned long acpi_fill_madt(unsigned long current) -{ - int cur_index; - struct iiostack_resource stack_info = {0}; - - int gsi_bases[] = { 0, 0x18, 0x20, 0x28, 0x30, 0x48, 0x50, 0x58, 0x60 }; - int ioapic_ids[] = { 0x8, 0x9, 0xa, 0xb, 0xc, 0xf, 0x10, 0x11, 0x12 }; - - /* Local APICs */ - current = xeonsp_acpi_create_madt_lapics(current); - - cur_index = 0; - get_iiostack_info(&stack_info); - - for (int stack = 0; stack < stack_info.no_of_stacks; ++stack) { - const STACK_RES *ri = &stack_info.res[stack]; - assert(cur_index < ARRAY_SIZE(ioapic_ids)); - assert(cur_index < ARRAY_SIZE(gsi_bases)); - int ioapic_id = ioapic_ids[cur_index]; - int gsi_base = gsi_bases[cur_index]; - printk(BIOS_DEBUG, "Adding MADT IOAPIC for stack: %d, ioapic_id: 0x%x, " - "ioapic_base: 0x%x, gsi_base: 0x%x\n", - stack, ioapic_id, ri->IoApicBase, gsi_base); - current += acpi_create_madt_ioapic( - (acpi_madt_ioapic_t *)current, - ioapic_id, ri->IoApicBase, gsi_base); - ++cur_index; - - /* - * Stack 0 has non-PCH IOAPIC and PCH IOAPIC. - * Add entry for PCH IOAPIC. - */ - if (stack == 0) { /* PCH IOAPIC */ - assert(cur_index < ARRAY_SIZE(ioapic_ids)); - assert(cur_index < ARRAY_SIZE(gsi_bases)); - ioapic_id = ioapic_ids[cur_index]; - gsi_base = gsi_bases[cur_index]; - printk(BIOS_DEBUG, "Adding MADT IOAPIC for stack: %d, ioapic_id: 0x%x, " - "ioapic_base: 0x%x, gsi_base: 0x%x\n", - stack, ioapic_id, - ri->IoApicBase + 0x1000, gsi_base); - current += acpi_create_madt_ioapic( - (acpi_madt_ioapic_t *)current, - ioapic_id, ri->IoApicBase + 0x1000, gsi_base); - ++cur_index; - } - } - - return acpi_madt_irq_overrides(current); -} - -static int calculate_power(int tdp, int p1_ratio, int ratio) -{ - u32 m; - u32 power; - - /* - * M = ((1.1 - ((p1_ratio - ratio) * 0.00625)) / 1.1) ^ 2 - * - * Power = (ratio / p1_ratio) * m * tdp - */ - - m = (110000 - ((p1_ratio - ratio) * 625)) / 11; - m = (m * m) / 1000; - - power = ((ratio * 100000 / p1_ratio) / 100); - power *= (m / 100) * (tdp / 1000); - power /= 1000; - - return (int)power; -} - -static void cpx_generate_p_state_entries(int core, int cores_per_package) -{ - int ratio_min, ratio_max, ratio_turbo, ratio_step; - int coord_type, power_max, power_unit, num_entries; - int ratio, power, clock, clock_max; - msr_t msr; - - /* Determine P-state coordination type from MISC_PWR_MGMT[0] */ - msr = rdmsr(MSR_MISC_PWR_MGMT); - if (msr.lo & MISC_PWR_MGMT_EIST_HW_DIS) - coord_type = SW_ANY; - else - coord_type = HW_ALL; - - /* Get bus ratio limits and calculate clock speeds */ - msr = rdmsr(MSR_PLATFORM_INFO); - ratio_min = (msr.hi >> (40-32)) & 0xff; /* Max Efficiency Ratio */ - - /* Determine if this CPU has configurable TDP */ - if (cpu_config_tdp_levels()) { - /* Set max ratio to nominal TDP ratio */ - msr = rdmsr(MSR_CONFIG_TDP_NOMINAL); - ratio_max = msr.lo & 0xff; - } else { - /* Max Non-Turbo Ratio */ - ratio_max = (msr.lo >> 8) & 0xff; - } - clock_max = ratio_max * CONFIG_CPU_BCLK_MHZ; - - /* Calculate CPU TDP in mW */ - msr = rdmsr(MSR_PKG_POWER_SKU_UNIT); - power_unit = 2 << ((msr.lo & 0xf) - 1); - msr = rdmsr(MSR_PKG_POWER_SKU); - power_max = ((msr.lo & 0x7fff) / power_unit) * 1000; - - /* Write _PCT indicating use of FFixedHW */ - acpigen_write_empty_PCT(); - - /* Write _PPC with no limit on supported P-state */ - acpigen_write_PPC_NVS(); - - /* Write PSD indicating configured coordination type */ - acpigen_write_PSD_package(core, 1, coord_type); - - /* Add P-state entries in _PSS table */ - acpigen_write_name("_PSS"); - - /* Determine ratio points */ - ratio_step = PSS_RATIO_STEP; - num_entries = ((ratio_max - ratio_min) / ratio_step) + 1; - if (num_entries > PSS_MAX_ENTRIES) { - ratio_step += 1; - num_entries = ((ratio_max - ratio_min) / ratio_step) + 1; - } - - /* P[T] is Turbo state if enabled */ - if (get_turbo_state() == TURBO_ENABLED) { - /* _PSS package count including Turbo */ - acpigen_write_package(num_entries + 2); - - msr = rdmsr(MSR_TURBO_RATIO_LIMIT); - ratio_turbo = msr.lo & 0xff; - - /* Add entry for Turbo ratio */ - acpigen_write_PSS_package( - clock_max + 1, /* MHz */ - power_max, /* mW */ - PSS_LATENCY_TRANSITION, /* lat1 */ - PSS_LATENCY_BUSMASTER, /* lat2 */ - ratio_turbo << 8, /* control */ - ratio_turbo << 8); /* status */ - } else { - /* _PSS package count without Turbo */ - acpigen_write_package(num_entries + 1); - } - - /* First regular entry is max non-turbo ratio */ - acpigen_write_PSS_package( - clock_max, /* MHz */ - power_max, /* mW */ - PSS_LATENCY_TRANSITION, /* lat1 */ - PSS_LATENCY_BUSMASTER, /* lat2 */ - ratio_max << 8, /* control */ - ratio_max << 8); /* status */ - - /* Generate the remaining entries */ - for (ratio = ratio_min + ((num_entries - 1) * ratio_step); - ratio >= ratio_min; ratio -= ratio_step) { - - /* Calculate power at this ratio */ - power = calculate_power(power_max, ratio_max, ratio); - clock = ratio * CONFIG_CPU_BCLK_MHZ; - //clock = 1; - acpigen_write_PSS_package( - clock, /* MHz */ - power, /* mW */ - PSS_LATENCY_TRANSITION, /* lat1 */ - PSS_LATENCY_BUSMASTER, /* lat2 */ - ratio << 8, /* control */ - ratio << 8); /* status */ - } - - /* Fix package length */ - acpigen_pop_len(); -} - -void generate_cpu_entries(const struct device *device) -{ - int core_id, cpu_id, pcontrol_blk = ACPI_BASE_ADDRESS; - int plen = 6; - int total_threads = dev_count_cpu(); - int threads_per_package = get_threads_per_package(); - int numcpus = total_threads / threads_per_package; - - printk(BIOS_DEBUG, "Found %d CPU(s) with %d core(s) each, totalcores: %d.\n", - numcpus, threads_per_package, total_threads); - - for (cpu_id = 0; cpu_id < numcpus; cpu_id++) { - for (core_id = 0; core_id < threads_per_package; core_id++) { - if (core_id > 0) { - pcontrol_blk = 0; - plen = 0; - } - - /* Generate processor \_PR.CPUx */ - acpigen_write_processor((cpu_id) * threads_per_package + - core_id, pcontrol_blk, plen); - - /* NOTE: Intel idle driver doesn't use ACPI C-state tables */ - - /* Generate P-state tables */ - cpx_generate_p_state_entries(core_id, threads_per_package); - acpigen_pop_len(); - } - } - /* PPKG is usually used for thermal management of the first and only package. */ - acpigen_write_processor_package("PPKG", 0, threads_per_package); - - /* Add a method to notify processor nodes */ - acpigen_write_processor_cnot(threads_per_package); -} - -int soc_madt_sci_irq_polarity(int sci) -{ - if (sci >= 20) - return MP_IRQ_POLARITY_LOW; - else - return MP_IRQ_POLARITY_HIGH; -} - -void acpi_fill_fadt(acpi_fadt_t *fadt) -{ - - const uint16_t pmbase = ACPI_BASE_ADDRESS; - - fadt->header.revision = get_acpi_table_revision(FADT); - fadt->sci_int = SCI_INT_NUM; - - fadt->pm1a_evt_blk = pmbase + PM1_STS; - fadt->pm1a_cnt_blk = pmbase + PM1_CNT; - - fadt->gpe0_blk = pmbase + GPE0_STS(0); - - fadt->pm1_evt_len = 4; - fadt->pm1_cnt_len = 2; - - /* GPE0 STS/EN pairs each 32 bits wide. */ - fadt->gpe0_blk_len = 2 * GPE0_REG_MAX * sizeof(uint32_t); - - fadt->duty_offset = 1; - fadt->day_alrm = 0xd; - - fadt->flags |= ACPI_FADT_WBINVD | ACPI_FADT_C1_SUPPORTED | ACPI_FADT_C2_MP_SUPPORTED | - ACPI_FADT_PLATFORM_CLOCK; - - fadt->x_pm1a_evt_blk.space_id = ACPI_ADDRESS_SPACE_IO; - fadt->x_pm1a_evt_blk.bit_width = fadt->pm1_evt_len * 8; - fadt->x_pm1a_evt_blk.addrl = pmbase + PM1_STS; - - fadt->x_pm1a_cnt_blk.space_id = ACPI_ADDRESS_SPACE_IO; - fadt->x_pm1a_cnt_blk.bit_width = fadt->pm1_cnt_len * 8; - fadt->x_pm1a_cnt_blk.addrl = pmbase + PM1_CNT; - - if (permanent_smi_handler()) { - fadt->smi_cmd = APM_CNT; - fadt->acpi_enable = APM_CNT_ACPI_ENABLE; - fadt->acpi_disable = APM_CNT_ACPI_DISABLE; - } - - /* General-Purpose Event Registers */ - fadt->x_gpe0_blk.space_id = ACPI_ADDRESS_SPACE_IO; - fadt->x_gpe0_blk.bit_width = 64; /* EventStatus + EventEnable */ - fadt->x_gpe0_blk.bit_offset = 0; - fadt->x_gpe0_blk.access_size = ACPI_ACCESS_SIZE_BYTE_ACCESS; - fadt->x_gpe0_blk.addrl = fadt->gpe0_blk; - fadt->x_gpe0_blk.addrh = 0; -} - unsigned long acpi_create_srat_lapics(unsigned long current) { struct device *cpu; @@ -912,3 +573,342 @@ unsigned long northbridge_write_acpi_tables(const struct device *device, return current; } + +int soc_madt_sci_irq_polarity(int sci) +{ + if (sci >= 20) + return MP_IRQ_POLARITY_LOW; + else + return MP_IRQ_POLARITY_HIGH; +} + +unsigned long acpi_fill_mcfg(unsigned long current) +{ + current += acpi_create_mcfg_mmconfig((acpi_mcfg_mmconfig_t *)current, + CONFIG_MMCONF_BASE_ADDRESS, 0, 0, 255); + return current; +} + +static unsigned long acpi_madt_irq_overrides(unsigned long current) +{ + int sci = SCI_INT_NUM; + uint16_t flags = MP_IRQ_TRIGGER_LEVEL; + + /* INT_SRC_OVR */ + current += acpi_create_madt_irqoverride((void *)current, 0, 0, 2, 0); + + flags |= soc_madt_sci_irq_polarity(sci); + + /* SCI */ + current += acpi_create_madt_irqoverride((void *)current, 0, sci, sci, flags); + + current += + acpi_create_madt_lapic_nmi((acpi_madt_lapic_nmi_t *) current, 0xff, 0x0d, 1); + + return current; +} + +unsigned long acpi_fill_madt(unsigned long current) +{ + int cur_index; + struct iiostack_resource stack_info = {0}; + + int gsi_bases[] = { 0, 0x18, 0x20, 0x28, 0x30, 0x48, 0x50, 0x58, 0x60 }; + int ioapic_ids[] = { 0x8, 0x9, 0xa, 0xb, 0xc, 0xf, 0x10, 0x11, 0x12 }; + + /* Local APICs */ + current = xeonsp_acpi_create_madt_lapics(current); + + cur_index = 0; + get_iiostack_info(&stack_info); + + for (int stack = 0; stack < stack_info.no_of_stacks; ++stack) { + const STACK_RES *ri = &stack_info.res[stack]; + assert(cur_index < ARRAY_SIZE(ioapic_ids)); + assert(cur_index < ARRAY_SIZE(gsi_bases)); + int ioapic_id = ioapic_ids[cur_index]; + int gsi_base = gsi_bases[cur_index]; + printk(BIOS_DEBUG, "Adding MADT IOAPIC for stack: %d, ioapic_id: 0x%x, " + "ioapic_base: 0x%x, gsi_base: 0x%x\n", + stack, ioapic_id, ri->IoApicBase, gsi_base); + current += acpi_create_madt_ioapic( + (acpi_madt_ioapic_t *)current, + ioapic_id, ri->IoApicBase, gsi_base); + ++cur_index; + + /* + * Stack 0 has non-PCH IOAPIC and PCH IOAPIC. + * Add entry for PCH IOAPIC. + */ + if (stack == 0) { /* PCH IOAPIC */ + assert(cur_index < ARRAY_SIZE(ioapic_ids)); + assert(cur_index < ARRAY_SIZE(gsi_bases)); + ioapic_id = ioapic_ids[cur_index]; + gsi_base = gsi_bases[cur_index]; + printk(BIOS_DEBUG, "Adding MADT IOAPIC for stack: %d, ioapic_id: 0x%x, " + "ioapic_base: 0x%x, gsi_base: 0x%x\n", + stack, ioapic_id, + ri->IoApicBase + 0x1000, gsi_base); + current += acpi_create_madt_ioapic( + (acpi_madt_ioapic_t *)current, + ioapic_id, ri->IoApicBase + 0x1000, gsi_base); + ++cur_index; + } + } + + return acpi_madt_irq_overrides(current); +} + +void acpi_fill_fadt(acpi_fadt_t *fadt) +{ + + const uint16_t pmbase = ACPI_BASE_ADDRESS; + + fadt->header.revision = get_acpi_table_revision(FADT); + fadt->sci_int = SCI_INT_NUM; + + fadt->pm1a_evt_blk = pmbase + PM1_STS; + fadt->pm1a_cnt_blk = pmbase + PM1_CNT; + + fadt->gpe0_blk = pmbase + GPE0_STS(0); + + fadt->pm1_evt_len = 4; + fadt->pm1_cnt_len = 2; + + /* GPE0 STS/EN pairs each 32 bits wide. */ + fadt->gpe0_blk_len = 2 * GPE0_REG_MAX * sizeof(uint32_t); + + fadt->duty_offset = 1; + fadt->day_alrm = 0xd; + + fadt->flags |= ACPI_FADT_WBINVD | ACPI_FADT_C1_SUPPORTED | ACPI_FADT_C2_MP_SUPPORTED | + ACPI_FADT_PLATFORM_CLOCK; + + fadt->x_pm1a_evt_blk.space_id = ACPI_ADDRESS_SPACE_IO; + fadt->x_pm1a_evt_blk.bit_width = fadt->pm1_evt_len * 8; + fadt->x_pm1a_evt_blk.addrl = pmbase + PM1_STS; + + fadt->x_pm1a_cnt_blk.space_id = ACPI_ADDRESS_SPACE_IO; + fadt->x_pm1a_cnt_blk.bit_width = fadt->pm1_cnt_len * 8; + fadt->x_pm1a_cnt_blk.addrl = pmbase + PM1_CNT; + + if (permanent_smi_handler()) { + fadt->smi_cmd = APM_CNT; + fadt->acpi_enable = APM_CNT_ACPI_ENABLE; + fadt->acpi_disable = APM_CNT_ACPI_DISABLE; + } + + /* General-Purpose Event Registers */ + fadt->x_gpe0_blk.space_id = ACPI_ADDRESS_SPACE_IO; + fadt->x_gpe0_blk.bit_width = 64; /* EventStatus + EventEnable */ + fadt->x_gpe0_blk.bit_offset = 0; + fadt->x_gpe0_blk.access_size = ACPI_ACCESS_SIZE_BYTE_ACCESS; + fadt->x_gpe0_blk.addrl = fadt->gpe0_blk; + fadt->x_gpe0_blk.addrh = 0; +} + +unsigned long southbridge_write_acpi_tables(const struct device *device, + unsigned long current, struct acpi_rsdp *rsdp) +{ + current = acpi_write_hpet(device, current, rsdp); + current = (ALIGN(current, 16)); + printk(BIOS_DEBUG, "current = %lx\n", current); + return current; +} + +void acpi_create_gnvs(struct global_nvs *gnvs) +{ + /* CPU core count */ + gnvs->pcnt = dev_count_cpu(); + printk(BIOS_DEBUG, "%s gnvs->pcnt: %d\n", __func__, gnvs->pcnt); +} + +void southbridge_inject_dsdt(const struct device *device) +{ + struct global_nvs *gnvs; + + gnvs = cbmem_find(CBMEM_ID_ACPI_GNVS); + if (!gnvs) { + gnvs = cbmem_add(CBMEM_ID_ACPI_GNVS, 0x2000); + if (gnvs) + memset(gnvs, 0, sizeof(*gnvs)); + } + + if (gnvs) { + acpi_create_gnvs(gnvs); + /* TODO: tell SMI about it, if HAVE_SMI_HANDLER */ + // apm_control(APM_CNT_GNVS_UPDATE); + + /* Add it to DSDT. */ + printk(BIOS_SPEW, "%s injecting NVSA with 0x%x\n", __FILE__, (uint32_t)gnvs); + acpigen_write_scope("\\"); + acpigen_write_name_dword("NVSA", (uint32_t)gnvs); + acpigen_pop_len(); + } + + /* Add IIOStack ACPI Resource Templates */ + uncore_inject_dsdt(); +} + +static int calculate_power(int tdp, int p1_ratio, int ratio) +{ + u32 m; + u32 power; + + /* + * M = ((1.1 - ((p1_ratio - ratio) * 0.00625)) / 1.1) ^ 2 + * + * Power = (ratio / p1_ratio) * m * tdp + */ + + m = (110000 - ((p1_ratio - ratio) * 625)) / 11; + m = (m * m) / 1000; + + power = ((ratio * 100000 / p1_ratio) / 100); + power *= (m / 100) * (tdp / 1000); + power /= 1000; + + return (int)power; +} + +static void cpx_generate_p_state_entries(int core, int cores_per_package) +{ + int ratio_min, ratio_max, ratio_turbo, ratio_step; + int coord_type, power_max, power_unit, num_entries; + int ratio, power, clock, clock_max; + msr_t msr; + + /* Determine P-state coordination type from MISC_PWR_MGMT[0] */ + msr = rdmsr(MSR_MISC_PWR_MGMT); + if (msr.lo & MISC_PWR_MGMT_EIST_HW_DIS) + coord_type = SW_ANY; + else + coord_type = HW_ALL; + + /* Get bus ratio limits and calculate clock speeds */ + msr = rdmsr(MSR_PLATFORM_INFO); + ratio_min = (msr.hi >> (40-32)) & 0xff; /* Max Efficiency Ratio */ + + /* Determine if this CPU has configurable TDP */ + if (cpu_config_tdp_levels()) { + /* Set max ratio to nominal TDP ratio */ + msr = rdmsr(MSR_CONFIG_TDP_NOMINAL); + ratio_max = msr.lo & 0xff; + } else { + /* Max Non-Turbo Ratio */ + ratio_max = (msr.lo >> 8) & 0xff; + } + clock_max = ratio_max * CONFIG_CPU_BCLK_MHZ; + + /* Calculate CPU TDP in mW */ + msr = rdmsr(MSR_PKG_POWER_SKU_UNIT); + power_unit = 2 << ((msr.lo & 0xf) - 1); + msr = rdmsr(MSR_PKG_POWER_SKU); + power_max = ((msr.lo & 0x7fff) / power_unit) * 1000; + + /* Write _PCT indicating use of FFixedHW */ + acpigen_write_empty_PCT(); + + /* Write _PPC with no limit on supported P-state */ + acpigen_write_PPC_NVS(); + + /* Write PSD indicating configured coordination type */ + acpigen_write_PSD_package(core, 1, coord_type); + + /* Add P-state entries in _PSS table */ + acpigen_write_name("_PSS"); + + /* Determine ratio points */ + ratio_step = PSS_RATIO_STEP; + num_entries = ((ratio_max - ratio_min) / ratio_step) + 1; + if (num_entries > PSS_MAX_ENTRIES) { + ratio_step += 1; + num_entries = ((ratio_max - ratio_min) / ratio_step) + 1; + } + + /* P[T] is Turbo state if enabled */ + if (get_turbo_state() == TURBO_ENABLED) { + /* _PSS package count including Turbo */ + acpigen_write_package(num_entries + 2); + + msr = rdmsr(MSR_TURBO_RATIO_LIMIT); + ratio_turbo = msr.lo & 0xff; + + /* Add entry for Turbo ratio */ + acpigen_write_PSS_package( + clock_max + 1, /* MHz */ + power_max, /* mW */ + PSS_LATENCY_TRANSITION, /* lat1 */ + PSS_LATENCY_BUSMASTER, /* lat2 */ + ratio_turbo << 8, /* control */ + ratio_turbo << 8); /* status */ + } else { + /* _PSS package count without Turbo */ + acpigen_write_package(num_entries + 1); + } + + /* First regular entry is max non-turbo ratio */ + acpigen_write_PSS_package( + clock_max, /* MHz */ + power_max, /* mW */ + PSS_LATENCY_TRANSITION, /* lat1 */ + PSS_LATENCY_BUSMASTER, /* lat2 */ + ratio_max << 8, /* control */ + ratio_max << 8); /* status */ + + /* Generate the remaining entries */ + for (ratio = ratio_min + ((num_entries - 1) * ratio_step); + ratio >= ratio_min; ratio -= ratio_step) { + + /* Calculate power at this ratio */ + power = calculate_power(power_max, ratio_max, ratio); + clock = ratio * CONFIG_CPU_BCLK_MHZ; + //clock = 1; + acpigen_write_PSS_package( + clock, /* MHz */ + power, /* mW */ + PSS_LATENCY_TRANSITION, /* lat1 */ + PSS_LATENCY_BUSMASTER, /* lat2 */ + ratio << 8, /* control */ + ratio << 8); /* status */ + } + + /* Fix package length */ + acpigen_pop_len(); +} + +void generate_cpu_entries(const struct device *device) +{ + int core_id, cpu_id, pcontrol_blk = ACPI_BASE_ADDRESS; + int plen = 6; + int total_threads = dev_count_cpu(); + int threads_per_package = get_threads_per_package(); + int numcpus = total_threads / threads_per_package; + + printk(BIOS_DEBUG, "Found %d CPU(s) with %d core(s) each, totalcores: %d.\n", + numcpus, threads_per_package, total_threads); + + for (cpu_id = 0; cpu_id < numcpus; cpu_id++) { + for (core_id = 0; core_id < threads_per_package; core_id++) { + if (core_id > 0) { + pcontrol_blk = 0; + plen = 0; + } + + /* Generate processor \_PR.CPUx */ + acpigen_write_processor((cpu_id) * threads_per_package + + core_id, pcontrol_blk, plen); + + /* NOTE: Intel idle driver doesn't use ACPI C-state tables */ + + /* Generate P-state tables */ + cpx_generate_p_state_entries(core_id, threads_per_package); + acpigen_pop_len(); + } + } + /* PPKG is usually used for thermal management of the first and only package. */ + acpigen_write_processor_package("PPKG", 0, threads_per_package); + + /* Add a method to notify processor nodes */ + acpigen_write_processor_cnot(threads_per_package); +} |