/* * This file is part of the coreboot project. * * Copyright (C) 2011 - 2012 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. * * You should have received a copy of the GNU General Public License * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA */ #include #include #include #include #include #include #include #include #include #include #include #include "agesawrapper.h" #define DUMP_ACPI_TABLES 0 #if DUMP_ACPI_TABLES == 1 static void dump_mem(u32 start, u32 end) { u32 i; print_debug("dump_mem:"); for (i = start; i < end; i++) { if ((i & 0xf) == 0) { printk(BIOS_DEBUG, "\n%08x:", i); } printk(BIOS_DEBUG, " %02x", (u8)*((u8 *)i)); } print_debug("\n"); } #endif extern const unsigned char AmlCode[]; unsigned long acpi_fill_mcfg(unsigned long current) { /* Just a dummy */ return current; } unsigned long acpi_fill_madt(unsigned long current) { device_t dev; u32 dword; u32 gsi_base = 0; u32 apicid_sp5100; u32 apicid_sr5650; /* * AGESA v5 Apply apic enumeration rules * For systems with >= 16 APICs, put the IO-APICs at 0..n and * put the local-APICs at m..z * For systems with < 16 APICs, put the Local-APICs at 0..n and * put the IO-APICs at (n + 1)..z */ if (CONFIG_MAX_CPUS >= 16) apicid_sp5100 = 0x0; else apicid_sp5100 = CONFIG_MAX_CPUS + 1; apicid_sr5650 = apicid_sp5100 + 1; /* create all subtables for processors */ current = acpi_create_madt_lapics(current); /* Write sp5100 IOAPIC, only one */ current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *) current, apicid_sp5100, IO_APIC_ADDR, 0 ); /* IOAPIC on rs5690 */ gsi_base += IO_APIC_INTERRUPTS; /* SP5100 has 24 IOAPIC entries. */ dev = dev_find_slot(0, PCI_DEVFN(0, 0)); if (dev) { pci_write_config32(dev, 0xF8, 0x1); dword = pci_read_config32(dev, 0xFC) & 0xfffffff0; current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *) current, apicid_sr5650, dword, gsi_base ); } current += acpi_create_madt_irqoverride((acpi_madt_irqoverride_t *) current, 0, //BUS 0, //SOURCE 2, //gsirq 0 //flags ); /* 0: mean bus 0--->ISA */ /* 0: PIC 0 */ /* 2: APIC 2 */ /* 5 mean: 0101 --> Edige-triggered, Active high */ /* create all subtables for processors */ current += acpi_create_madt_lapic_nmi((acpi_madt_lapic_nmi_t *)current, 0, 5, 1); current += acpi_create_madt_lapic_nmi((acpi_madt_lapic_nmi_t *)current, 1, 5, 1); /* 1: LINT1 connect to NMI */ return current; } unsigned long acpi_fill_slit(unsigned long current) { // Not implemented return current; } unsigned long acpi_fill_srat(unsigned long current) { /* No NUMA, no SRAT */ return current; } unsigned long acpi_fill_ssdt_generator(unsigned long current, const char *oem_table_id) { int lens; msr_t msr; char pscope[] = "\\_SB.PCI0"; lens = acpigen_write_scope(pscope); msr = rdmsr(TOP_MEM); lens += acpigen_write_name_dword("TOM1", msr.lo); msr = rdmsr(TOP_MEM2); /* * Since XP only implements parts of ACPI 2.0, we can't use a qword * here. * See http://www.acpi.info/presentations/S01USMOBS169_OS%2520new.ppt * slide 22ff. * Shift value right by 20 bit to make it fit into 32bit, * giving us 1MB granularity and a limit of almost 4Exabyte of memory. */ lens += acpigen_write_name_dword("TOM2", (msr.hi << 12) | msr.lo >> 20); acpigen_patch_len(lens - 1); return (unsigned long) (acpigen_get_current()); } unsigned long write_acpi_tables(unsigned long start) { unsigned long current; acpi_rsdp_t *rsdp; acpi_rsdt_t *rsdt; //acpi_hpet_t *hpet; acpi_madt_t *madt; acpi_srat_t *srat; acpi_slit_t *slit; acpi_fadt_t *fadt; acpi_facs_t *facs; acpi_header_t *dsdt; acpi_header_t *ssdt; acpi_header_t *ssdt2; acpi_header_t *alib; get_bus_conf(); /* it will get sblk, pci1234, hcdn, and sbdn */ /* Align ACPI tables to 16 bytes */ start = ALIGN(start, 16); current = start; printk(BIOS_INFO, "ACPI: Writing ACPI tables at %lx...\n", start); /* We need at least an RSDP and an RSDT Table */ rsdp = (acpi_rsdp_t *) current; current += sizeof(acpi_rsdp_t); rsdt = (acpi_rsdt_t *) current; current += sizeof(acpi_rsdt_t); /* clear all table memory */ memset((void *)start, 0, current - start); acpi_write_rsdp(rsdp, rsdt, NULL); acpi_write_rsdt(rsdt); /* FACS */ printk(BIOS_DEBUG, "ACPI: * FACS\n"); facs = (acpi_facs_t *) current; current += sizeof(acpi_facs_t); acpi_create_facs(facs); /* DSDT */ printk(BIOS_DEBUG, "ACPI: * DSDT\n"); dsdt = (acpi_header_t *)current; memcpy(dsdt, &AmlCode, sizeof(acpi_header_t)); current += dsdt->length; memcpy(dsdt, &AmlCode, dsdt->length); printk(BIOS_DEBUG, "ACPI: * DSDT @ %p Length %x\n", dsdt, dsdt->length); /* FADT */ printk(BIOS_DEBUG, "ACPI: * FADT\n"); fadt = (acpi_fadt_t *) current; current += sizeof(acpi_fadt_t); acpi_create_fadt(fadt, facs, dsdt); acpi_add_table(rsdp, fadt); /* * We explicitly add these tables later on: */ #ifdef UNUSED_CODE // Don't need HPET table. we have one in dsdt current = ALIGN(current, 8); printk(BIOS_DEBUG, "ACPI: * HPET at %lx\n", current); hpet = (acpi_hpet_t *) current; current += sizeof(acpi_hpet_t); acpi_create_hpet(hpet); acpi_add_table(rsdp, hpet); #endif /* If we want to use HPET Timers Linux wants an MADT */ current = ALIGN(current, 8); printk(BIOS_DEBUG, "ACPI: * MADT at %lx\n",current); madt = (acpi_madt_t *) current; acpi_create_madt(madt); current += madt->header.length; acpi_add_table(rsdp, madt); /* SRAT */ current = ALIGN(current, 8); printk(BIOS_DEBUG, "ACPI: * SRAT at %lx\n", current); srat = (acpi_srat_t *) agesawrapper_getlateinitptr (PICK_SRAT); if (srat != NULL) { memcpy((void *)current, srat, srat->header.length); srat = (acpi_srat_t *) current; //acpi_create_srat(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 *) agesawrapper_getlateinitptr (PICK_SLIT); if (slit != NULL) { memcpy((void *)current, slit, slit->header.length); slit = (acpi_slit_t *) current; //acpi_create_slit(slit); current += slit->header.length; acpi_add_table(rsdp, slit); } /* SSDT */ current = ALIGN(current, 16); printk(BIOS_DEBUG, "ACPI: * AGESA ALIB SSDT at %lx\n", current); alib = (acpi_header_t *)agesawrapper_getlateinitptr (PICK_ALIB); if (alib != NULL) { memcpy((void *)current, alib, alib->length); ssdt = (acpi_header_t *) current; current += alib->length; acpi_add_table(rsdp,alib); } else { printk(BIOS_DEBUG, " AGESA ALIB SSDT table NULL. Skipping.\n"); } /* The DSDT needs additional work for the AGESA SSDT Pstate table */ current = ALIGN(current, 16); printk(BIOS_DEBUG, "ACPI: * AGESA SSDT Pstate at %lx\n", current); ssdt = (acpi_header_t *)agesawrapper_getlateinitptr (PICK_PSTATE); if (ssdt != NULL) { memcpy((void *)current, ssdt, ssdt->length); ssdt = (acpi_header_t *) current; current += ssdt->length; acpi_add_table(rsdp,ssdt); } else { printk(BIOS_DEBUG, " AGESA SSDT table NULL. Skipping.\n"); } current = ALIGN(current, 16); printk(BIOS_DEBUG, "ACPI: * coreboot TOM SSDT2 at %lx\n", current); ssdt2 = (acpi_header_t *) current; acpi_create_ssdt_generator(ssdt2, ACPI_TABLE_CREATOR); current += ssdt2->length; acpi_add_table(rsdp,ssdt2); #if DUMP_ACPI_TABLES == 1 printk(BIOS_DEBUG, "rsdp\n"); dump_mem(rsdp, ((void *)rsdp) + sizeof(acpi_rsdp_t)); printk(BIOS_DEBUG, "rsdt\n"); dump_mem(rsdt, ((void *)rsdt) + sizeof(acpi_rsdt_t)); printk(BIOS_DEBUG, "madt\n"); dump_mem(madt, ((void *)madt) + madt->header.length); printk(BIOS_DEBUG, "srat\n"); dump_mem(srat, ((void *)srat) + srat->header.length); printk(BIOS_DEBUG, "slit\n"); dump_mem(slit, ((void *)slit) + slit->header.length); printk(BIOS_DEBUG, "ssdt\n"); dump_mem(ssdt, ((void *)ssdt) + ssdt->length); printk(BIOS_DEBUG, "fadt\n"); dump_mem(fadt, ((void *)fadt) + fadt->header.length); #endif printk(BIOS_INFO, "ACPI: done.\n"); return current; }