/* * This file is part of the coreboot project. * * Copyright (C) 2015 Timothy Pearson , Raptor Engineering * Copyright (C) 2007 Advanced Micro Devices, Inc. * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License as published by * the Free Software Foundation; version 2 of the License. * * This program is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the * GNU General Public License for more details. */ #include #include #include #include #include #include #include #include #include "amdfam10.h" //it seems some functions can be moved arch/x86/boot/acpi.c unsigned long acpi_create_madt_lapic_nmis(unsigned long current, u16 flags, u8 lint) { device_t cpu; 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; } current += acpi_create_madt_lapic_nmi((acpi_madt_lapic_nmi_t *)current, cpu_index, flags, lint); cpu_index++; } return current; } unsigned long acpi_create_srat_lapics(unsigned long current) { device_t cpu; 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 long resk(uint64_t value) { unsigned long resultk; if (value < (1ULL << 42)) { resultk = value >> 10; } else { resultk = 0xffffffff; } return resultk; } struct acpi_srat_mem_state { unsigned long current; }; static void set_srat_mem(void *gp, struct device *dev, struct resource *res) { struct acpi_srat_mem_state *state = gp; unsigned long basek, sizek; basek = resk(res->base); sizek = resk(res->size); printk(BIOS_DEBUG, "set_srat_mem: dev %s, res->index=%04lx startk=%08lx, sizek=%08lx\n", dev_path(dev), res->index, basek, sizek); /* * 0-640K must be on node 0 * next range is from 1M--- * So will cut off before 1M in the mem range */ if((basek+sizek)<1024) return; if(basek<1024) { sizek -= 1024 - basek; basek = 1024; } // need to figure out NV if (res->index > 0xf) /* Exclude MMIO resources, e.g. as set in northbridge.c amdfam10_domain_read_resources() */ state->current += acpi_create_srat_mem((acpi_srat_mem_t *)state->current, (res->index & 0xf), basek, sizek, 1); } static unsigned long acpi_fill_srat(unsigned long current) { struct acpi_srat_mem_state srat_mem_state; /* create all subtables for processors */ current = acpi_create_srat_lapics(current); /* create all subteble for memory range */ /* 0-640K must be on node 0 */ current += acpi_create_srat_mem((acpi_srat_mem_t *)current, 0, 0, 640, 1);//enable srat_mem_state.current = current; search_global_resources( IORESOURCE_MEM | IORESOURCE_CACHEABLE, IORESOURCE_MEM | IORESOURCE_CACHEABLE, set_srat_mem, &srat_mem_state); current = srat_mem_state.current; return current; } static unsigned long acpi_fill_slit(unsigned long current) { /* Implement SLIT algorithm in BKDG Rev. 3.62 ยง 2.3.6.1 * Fill the first 8 bytes with the node number, * then fill the next num*num byte with the distance, * Distance entries vary with topology; the local node * is always 10. * * Fully connected: * Set all non-local nodes to 16 * * Partially connected; with probe filter: * Set all non-local nodes to 10+(num_hops*6) * * Partially connected; without probe filter: * Set all non-local nodes to 13 * * FIXME * The partially connected cases are not implemented; * once a means is found to detect partially connected * topologies, implement the remaining cases. */ u8 *p = (u8 *)current; int nodes = sysconf.nodes; int i,j; memset(p, 0, 8+nodes*nodes); *p = (u8) nodes; p += 8; for(i=0;i> 20); acpigen_write_name_dword("SBDN", sysconf.sbdn); acpigen_write_name("HCLK"); acpigen_write_package(HC_POSSIBLE_NUM); for(i=0;i> 12) & 0xff) { //sb chain on other than bus 0 CBST = (u8) (0x0f); } else { CBST = (u8) (0x00); } } acpigen_write_name_byte("CBST", CBST); if((CONFIG_CBB == 0xff) && (sysconf.nodes>32)) { CBS2 = 0x0f; CBB2 = (u8)(CONFIG_CBB-1); } else { CBS2 = 0x00; CBB2 = 0x00; } acpigen_write_name_byte("CBB2", CBB2); acpigen_write_name_byte("CBS2", CBS2); //minus opcode acpigen_pop_len(); } unsigned long northbridge_write_acpi_tables(device_t device, unsigned long current, struct acpi_rsdp *rsdp) { acpi_srat_t *srat; acpi_slit_t *slit; get_bus_conf(); /* it will get sblk, pci1234, hcdn, and sbdn */ /* 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; }