/* SPDX-License-Identifier: GPL-2.0-only */ #include #include #include #include #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; } static void uncore_inject_dsdt(void) { struct iiostack_resource stack_info = {0}; get_iiostack_info(&stack_info); acpigen_write_scope("\\_SB"); for (uint8_t stack = 0; stack < stack_info.no_of_stacks; ++stack) { const STACK_RES *ri = &stack_info.res[stack]; char rtname[16]; snprintf(rtname, sizeof(rtname), "RT%02x", stack); acpigen_write_name(rtname); printk(BIOS_DEBUG, "\tCreating ResourceTemplate %s for stack: %d\n", rtname, stack); acpigen_write_resourcetemplate_header(); /* bus resource */ acpigen_resource_word(2, 0xc, 0, 0, ri->BusBase, ri->BusLimit, 0x0, (ri->BusLimit - ri->BusBase + 1)); /* additional io resources on socket 0 bus 0 */ if (stack == 0) { /* ACPI 6.4.2.5 I/O Port Descriptor */ acpigen_write_io16(0xCF8, 0xCFF, 0x1, 0x8, 1); /* IO decode CF8-CFF */ acpigen_resource_word(1, 0xc, 0x3, 0, 0x0000, 0x03AF, 0, 0x03B0); acpigen_resource_word(1, 0xc, 0x3, 0, 0x03E0, 0x0CF7, 0, 0x0918); acpigen_resource_word(1, 0xc, 0x3, 0, 0x03B0, 0x03BB, 0, 0x000C); acpigen_resource_word(1, 0xc, 0x3, 0, 0x03C0, 0x03DF, 0, 0x0020); } /* IO resource */ acpigen_resource_word(1, 0xc, 0x3, 0, ri->PciResourceIoBase, ri->PciResourceIoLimit, 0x0, (ri->PciResourceIoLimit - ri->PciResourceIoBase + 1)); /* additional mem32 resources on socket 0 bus 0 */ if (stack == 0) { acpigen_resource_dword(0, 0xc, 3, 0, VGA_BASE_ADDRESS, (VGA_BASE_ADDRESS + VGA_BASE_SIZE - 1), 0x0, VGA_BASE_SIZE); acpigen_resource_dword(0, 0xc, 1, 0, SPI_BASE_ADDRESS, (SPI_BASE_ADDRESS + SPI_BASE_SIZE - 1), 0x0, SPI_BASE_SIZE); } /* Mem32 resource */ acpigen_resource_dword(0, 0xc, 1, 0, ri->PciResourceMem32Base, ri->PciResourceMem32Limit, 0x0, (ri->PciResourceMem32Limit - ri->PciResourceMem32Base + 1)); /* Mem64 resource */ acpigen_resource_qword(0, 0xc, 1, 0, ri->PciResourceMem64Base, ri->PciResourceMem64Limit, 0x0, (ri->PciResourceMem64Limit - ri->PciResourceMem64Base + 1)); acpigen_write_resourcetemplate_footer(); } 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; uint8_t num_cpus = 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; current += acpi_create_madt_lapic((acpi_madt_lapic_t *)current, num_cpus, cpu->path.apic.apic_id); num_cpus++; } 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 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 */ /* TODO: Soc specific power states generation */ 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 = 1; 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 = 1; 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; 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_socket_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; }