/* SPDX-License-Identifier: GPL-2.0-only */ #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include "chip.h" #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; } void southbridge_inject_dsdt(const struct device *device) { global_nvs_t *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 */ // smm_setup_structures(gnvs, NULL, NULL); /* 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(); } } void acpi_create_gnvs(struct global_nvs_t *gnvs) { config_t *config = config_of_soc(); (void) config; /* not implemented yet */ } 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); return current; } unsigned long acpi_fill_madt(unsigned long current) { /* Local APICs */ current = acpi_create_madt_lapics(current); /* IOAPIC */ current += acpi_create_madt_ioapic((void *)current, 2, IO_APIC_ADDR, 0); return acpi_madt_irq_overrides(current); } 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->pm1b_evt_blk = 0x0; fadt->pm1a_cnt_blk = pmbase + PM1_CNT; fadt->pm1b_cnt_blk = 0x0; 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->flush_size = 0x400; /* twice of cache size */ fadt->flush_stride = 0x10; /* Cache line width */ fadt->duty_offset = 1; fadt->day_alrm = 0xd; fadt->flags = ACPI_FADT_WBINVD | ACPI_FADT_C1_SUPPORTED | ACPI_FADT_C2_MP_SUPPORTED | ACPI_FADT_RESET_REGISTER | ACPI_FADT_PLATFORM_CLOCK; fadt->reset_reg.space_id = 1; fadt->reset_reg.bit_width = 8; fadt->reset_reg.addrl = RST_CNT; fadt->reset_reg.access_size = ACPI_ACCESS_SIZE_BYTE_ACCESS; fadt->reset_value = RST_CPU | SYS_RST; fadt->x_pm1a_evt_blk.space_id = 1; fadt->x_pm1a_evt_blk.bit_width = fadt->pm1_evt_len * 8; fadt->x_pm1a_evt_blk.addrl = pmbase + PM1_STS; fadt->x_pm1b_evt_blk.space_id = 1; fadt->x_pm1a_cnt_blk.space_id = 1; fadt->x_pm1a_cnt_blk.bit_width = fadt->pm1_cnt_len * 8; fadt->x_pm1a_cnt_blk.addrl = pmbase + PM1_CNT; fadt->x_pm1b_cnt_blk.space_id = 1; fadt->x_gpe1_blk.space_id = 1; 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_DWORD_ACCESS; fadt->x_gpe0_blk.addrl = fadt->gpe0_blk; fadt->x_gpe0_blk.addrh = 0; fadt->x_gpe1_blk.space_id = ACPI_ADDRESS_SPACE_IO; fadt->x_gpe1_blk.bit_width = 0; fadt->x_gpe1_blk.bit_offset = 0; fadt->x_gpe1_blk.access_size = 0; fadt->x_gpe1_blk.addrl = 0; fadt->x_gpe1_blk.addrh = 0; } unsigned long acpi_create_srat_lapics(unsigned long current) { struct device *cpu; unsigned int cpu_index = 0; for (cpu = all_devices; cpu; cpu = cpu->next) { if ((cpu->path.type != DEVICE_PATH_APIC) || (cpu->bus->dev->path.type != DEVICE_PATH_CPU_CLUSTER)) { continue; } if (!cpu->enabled) continue; printk(BIOS_DEBUG, "SRAT: lapic cpu_index=%02x, node_id=%02x, apic_id=%02x\n", cpu_index, cpu->path.apic.node_id, cpu->path.apic.apic_id); current += acpi_create_srat_lapic((acpi_srat_lapic_t *)current, cpu->path.apic.node_id, cpu->path.apic.apic_id); cpu_index++; } return current; } static unsigned int get_srat_memory_entries(acpi_srat_mem_t *srat_mem) { const struct SystemMemoryMapHob *memory_map; unsigned int mmap_index; memory_map = get_system_memory_map(); assert(memory_map != NULL); printk(BIOS_DEBUG, "memory_map: %p\n", memory_map); mmap_index = 0; for (int e = 0; e < memory_map->numberEntries; ++e) { const struct SystemMemoryMapElement *mem_element = &memory_map->Element[e]; uint64_t addr = (uint64_t) ((uint64_t)mem_element->BaseAddress << MEM_ADDR_64MB_SHIFT_BITS); uint64_t size = (uint64_t) ((uint64_t)mem_element->ElementSize << MEM_ADDR_64MB_SHIFT_BITS); printk(BIOS_DEBUG, "memory_map %d addr: 0x%llx, BaseAddress: 0x%x, size: 0x%llx, " "ElementSize: 0x%x, reserved: %d\n", e, addr, mem_element->BaseAddress, size, mem_element->ElementSize, (mem_element->Type & MEM_TYPE_RESERVED)); assert(mmap_index < MAX_ACPI_MEMORY_AFFINITY_COUNT); /* skip reserved memory region */ if (mem_element->Type & MEM_TYPE_RESERVED) continue; /* skip if this address is already added */ bool skip = false; for (int idx = 0; idx < mmap_index; ++idx) { uint64_t base_addr = ((uint64_t)srat_mem[idx].base_address_high << 32) + srat_mem[idx].base_address_low; if (addr == base_addr) { skip = true; break; } } if (skip) continue; srat_mem[mmap_index].type = 1; /* Memory affinity structure */ srat_mem[mmap_index].length = sizeof(acpi_srat_mem_t); srat_mem[mmap_index].base_address_low = (uint32_t) (addr & 0xffffffff); srat_mem[mmap_index].base_address_high = (uint32_t) (addr >> 32); srat_mem[mmap_index].length_low = (uint32_t) (size & 0xffffffff); srat_mem[mmap_index].length_high = (uint32_t) (size >> 32); srat_mem[mmap_index].proximity_domain = mem_element->SocketId; srat_mem[mmap_index].flags = SRAT_ACPI_MEMORY_ENABLED; if ((mem_element->Type & MEMTYPE_VOLATILE_MASK) == 0) srat_mem[mmap_index].flags |= SRAT_ACPI_MEMORY_NONVOLATILE; ++mmap_index; } return mmap_index; } static unsigned long acpi_fill_srat(unsigned long current) { acpi_srat_mem_t srat_mem[MAX_ACPI_MEMORY_AFFINITY_COUNT]; unsigned int mem_count; /* create all subtables for processors */ current = acpi_create_srat_lapics(current); mem_count = get_srat_memory_entries(srat_mem); for (int i = 0; i < mem_count; ++i) { printk(BIOS_DEBUG, "adding srat memory %d entry length: %d, addr: 0x%x%x, " "length: 0x%x%x, proximity_domain: %d, flags: %x\n", i, srat_mem[i].length, srat_mem[i].base_address_high, srat_mem[i].base_address_low, srat_mem[i].length_high, srat_mem[i].length_low, srat_mem[i].proximity_domain, srat_mem[i].flags); memcpy((acpi_srat_mem_t *)current, &srat_mem[i], sizeof(srat_mem[i])); current += srat_mem[i].length; } return current; } static unsigned long acpi_fill_slit(unsigned long current) { unsigned int nodes = xeon_sp_get_cpu_count(); uint8_t *p = (uint8_t *)current; memset(p, 0, 8 + nodes * nodes); *p = (uint8_t)nodes; p += 8; /* this assumes fully connected socket topology */ for (int i = 0; i < nodes; i++) { for (int j = 0; j < nodes; j++) { if (i == j) p[i*nodes+j] = 10; else p[i*nodes+j] = 16; } } current += 8 + nodes * nodes; return current; } unsigned long northbridge_write_acpi_tables(const struct device *device, unsigned long current, struct acpi_rsdp *rsdp) { acpi_srat_t *srat; acpi_slit_t *slit; /* SRAT */ current = ALIGN(current, 8); printk(BIOS_DEBUG, "ACPI: * SRAT at %lx\n", current); srat = (acpi_srat_t *) current; acpi_create_srat(srat, acpi_fill_srat); current += srat->header.length; acpi_add_table(rsdp, srat); /* SLIT */ current = ALIGN(current, 8); printk(BIOS_DEBUG, "ACPI: * SLIT at %lx\n", current); slit = (acpi_slit_t *) current; acpi_create_slit(slit, acpi_fill_slit); current += slit->header.length; acpi_add_table(rsdp, slit); return current; }