| /* SPDX-License-Identifier: GPL-2.0-or-later */ |
| |
| #include <assert.h> |
| #include <acpi/acpi_gnvs.h> |
| #include <acpi/acpigen.h> |
| #include <arch/smp/mpspec.h> |
| #include <intelblocks/acpi.h> |
| #include <device/pci.h> |
| #include <cbmem.h> |
| #include <cpu/x86/smm.h> |
| #include <soc/acpi.h> |
| #include <soc/cpu.h> |
| #include <soc/pci_devs.h> |
| #include <soc/pm.h> |
| #include <soc/soc_util.h> |
| #include <soc/util.h> |
| #include <string.h> |
| |
| acpi_cstate_t *soc_get_cstate_map(size_t *entries) |
| { |
| *entries = 0; |
| return NULL; |
| } |
| |
| static int acpi_sci_irq(void) |
| { |
| int sci_irq = 9; |
| uint32_t scis; |
| |
| scis = soc_read_sci_irq_select(); |
| scis &= SCI_IRQ_SEL; |
| scis >>= SCI_IRQ_ADJUST; |
| |
| /* Determine how SCI is routed. */ |
| switch (scis) { |
| case SCIS_IRQ9: |
| case SCIS_IRQ10: |
| case SCIS_IRQ11: |
| sci_irq = scis - SCIS_IRQ9 + 9; |
| break; |
| case SCIS_IRQ20: |
| case SCIS_IRQ21: |
| case SCIS_IRQ22: |
| case SCIS_IRQ23: |
| sci_irq = scis - SCIS_IRQ20 + 20; |
| break; |
| default: |
| printk(BIOS_DEBUG, "Invalid SCI route! Defaulting to IRQ9.\n"); |
| sci_irq = 9; |
| break; |
| } |
| |
| printk(BIOS_DEBUG, "SCI is IRQ%d\n", sci_irq); |
| return sci_irq; |
| } |
| |
| static unsigned long acpi_madt_irq_overrides(unsigned long current) |
| { |
| int sci = acpi_sci_irq(); |
| 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 add_madt_ioapic(unsigned long current, int socket, int stack, |
| int ioapic_id, uint32_t ioapic_base, int gsi_base) |
| { |
| printk(BIOS_DEBUG, "Adding MADT IOAPIC for socket: %d, stack: %d, ioapic_id: 0x%x, " |
| "ioapic_base: 0x%x, gsi_base: 0x%x\n", |
| socket, stack, ioapic_id, ioapic_base, gsi_base); |
| return acpi_create_madt_ioapic((acpi_madt_ioapic_t *)current, ioapic_id, |
| ioapic_base, gsi_base); |
| } |
| |
| unsigned long acpi_fill_madt(unsigned long current) |
| { |
| int cur_index; |
| int ioapic_id; |
| int gsi_base; |
| const IIO_UDS *hob = get_iio_uds(); |
| |
| /* With XEON-SP FSP, PCH IOAPIC is allocated with first 120 GSIs. */ |
| #if (CONFIG(SOC_INTEL_COOPERLAKE_SP)) |
| const int gsi_bases[] = { 0, 0x78, 0x80, 0x88, 0x90, 0x98, 0xA0, 0xA8, 0xB0 }; |
| #endif |
| |
| #if (CONFIG(SOC_INTEL_SKYLAKE_SP)) |
| const int gsi_bases[] = { 0, 0x18, 0x20, 0x28, 0x30, 0x48, 0x50, 0x58, 0x60 }; |
| #endif |
| /* Local APICs */ |
| current = xeonsp_acpi_create_madt_lapics(current); |
| |
| cur_index = 0; |
| gsi_base = gsi_bases[cur_index]; |
| current += add_madt_ioapic(current, 0, 0, PCH_IOAPIC_ID, |
| hob->PlatformData.IIO_resource[0].StackRes[0].IoApicBase, |
| gsi_base); |
| ++cur_index; |
| |
| for (int socket = 0; socket < hob->PlatformData.numofIIO; ++socket) { |
| for (int stack = 0; stack < MAX_IIO_STACK; ++stack) { |
| const STACK_RES *ri = |
| &hob->PlatformData.IIO_resource[socket].StackRes[stack]; |
| if (!is_iio_stack_res(ri)) |
| continue; |
| assert(cur_index < ARRAY_SIZE(gsi_bases)); |
| ioapic_id = soc_get_iio_ioapicid(socket, stack); |
| gsi_base = gsi_bases[cur_index]; |
| uint32_t ioapic_base = ri->IoApicBase; |
| |
| /* |
| * Stack 0 has non-PCH IOAPIC and PCH IOAPIC. |
| * The IIO IOAPIC is placed at 0x1000 from the reported base. |
| */ |
| if (stack == 0 && socket == 0) |
| ioapic_base += 0x1000; |
| |
| current += add_madt_ioapic(current, socket, stack, ioapic_id, |
| ioapic_base, 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 = acpi_sci_irq(); |
| |
| if (permanent_smi_handler()) { |
| fadt->smi_cmd = APM_CNT; |
| fadt->acpi_enable = APM_CNT_ACPI_ENABLE; |
| fadt->acpi_disable = APM_CNT_ACPI_DISABLE; |
| } |
| |
| 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_SLEEP_BUTTON | |
| ACPI_FADT_SEALED_CASE | ACPI_FADT_S4_RTC_WAKE | |
| 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_evt_blk.access_size = ACPI_ACCESS_SIZE_WORD_ACCESS; |
| |
| 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; |
| fadt->x_pm1a_cnt_blk.access_size = ACPI_ACCESS_SIZE_WORD_ACCESS; |
| |
| /* |
| * Windows 10 requires x_gpe0_blk to be set starting with FADT revision 5. |
| * The bit_width field intentionally overflows here. |
| * The OSPM can instead use the values in `fadt->gpe0_blk{,_len}`, which |
| * seems to work fine on Linux 5.0 and Windows 10. |
| */ |
| fadt->x_gpe0_blk.space_id = ACPI_ADDRESS_SPACE_IO; |
| fadt->x_gpe0_blk.bit_width = fadt->gpe0_blk_len * 8; |
| 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 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, sizeof(*gnvs)); |
| 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(); |
| } |
| } |
| |
| 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; |
| } |
| |
| acpi_tstate_t *soc_get_tss_table(int *entries) |
| { |
| *entries = 0; |
| return NULL; |
| } |
| |
| 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 */ |
| |
| /* Soc specific power states generation */ |
| soc_power_states_generation(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); |
| } |