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authorStefan Reinauer <stefan.reinauer@coreboot.org>2015-07-13 09:39:15 +0200
committerStefan Reinauer <stefan.reinauer@coreboot.org>2015-07-13 21:04:56 +0200
commit6cb3a59fd5e754c3627b79db21c5bcc284bfd721 (patch)
treee83db5b11ee4a29d496dcf2798d024b6b8455ab7 /src/arch/x86/acpi.c
parent9693885ad88d21ead7bd9ebc32f3e4901841b18b (diff)
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x86: flatten hierarchy4.14.1
It never made sense to have bootblock_* in init, but pirq_routing.c in boot, and some ld scripts on the main level while others live in subdirectories. This patch flattens the directory hierarchy and makes x86 more similar to the other architectures. Change-Id: I4056038fe7813e4d3d3042c441e7ab6076a36384 Signed-off-by: Stefan Reinauer <stefan.reinauer@coreboot.org> Reviewed-on: http://review.coreboot.org/10901 Tested-by: build bot (Jenkins) Tested-by: Raptor Engineering Automated Test Stand <noreply@raptorengineeringinc.com> Reviewed-by: Ronald G. Minnich <rminnich@gmail.com>
Diffstat (limited to 'src/arch/x86/acpi.c')
-rw-r--r--src/arch/x86/acpi.c1137
1 files changed, 1137 insertions, 0 deletions
diff --git a/src/arch/x86/acpi.c b/src/arch/x86/acpi.c
new file mode 100644
index 000000000000..134e43782ea6
--- /dev/null
+++ b/src/arch/x86/acpi.c
@@ -0,0 +1,1137 @@
+/*
+ * This file is part of the coreboot project.
+ *
+ * coreboot ACPI Table support
+ * written by Stefan Reinauer <stepan@openbios.org>
+ *
+ * Copyright (C) 2004 SUSE LINUX AG
+ * Copyright (C) 2005-2009 coresystems GmbH
+ *
+ * ACPI FADT, FACS, and DSDT table support added by
+ * Nick Barker <nick.barker9@btinternet.com>, and those portions
+ * Copyright (C) 2004 Nick Barker
+ *
+ * Copyright (C) 2005 ADVANCED MICRO DEVICES, INC. All Rights Reserved.
+ * 2005.9 yhlu add SRAT table generation
+ */
+
+/*
+ * Each system port implementing ACPI has to provide two functions:
+ *
+ * write_acpi_tables()
+ * acpi_dump_apics()
+ *
+ * See Kontron 986LCD-M port for a good example of an ACPI implementation
+ * in coreboot.
+ */
+
+#include <console/console.h>
+#include <string.h>
+#include <arch/acpi.h>
+#include <arch/acpigen.h>
+#include <device/pci.h>
+#include <cbmem.h>
+#include <cpu/x86/lapic_def.h>
+#include <cpu/cpu.h>
+#include <cbfs.h>
+#include <timestamp.h>
+#include <romstage_handoff.h>
+
+/* FIXME: Kconfig doesn't support overridable defaults :-( */
+#ifndef CONFIG_HPET_MIN_TICKS
+#define CONFIG_HPET_MIN_TICKS 0x1000
+#endif
+
+u8 acpi_checksum(u8 *table, u32 length)
+{
+ u8 ret = 0;
+ while (length--) {
+ ret += *table;
+ table++;
+ }
+ return -ret;
+}
+
+/**
+ * Add an ACPI table to the RSDT (and XSDT) structure, recalculate length
+ * and checksum.
+ */
+void acpi_add_table(acpi_rsdp_t *rsdp, void *table)
+{
+ int i, entries_num;
+ acpi_rsdt_t *rsdt;
+ acpi_xsdt_t *xsdt = NULL;
+
+ /* The RSDT is mandatory... */
+ rsdt = (acpi_rsdt_t *)(uintptr_t)rsdp->rsdt_address;
+
+ /* ...while the XSDT is not. */
+ if (rsdp->xsdt_address)
+ xsdt = (acpi_xsdt_t *)((uintptr_t)rsdp->xsdt_address);
+
+ /* This should always be MAX_ACPI_TABLES. */
+ entries_num = ARRAY_SIZE(rsdt->entry);
+
+ for (i = 0; i < entries_num; i++) {
+ if (rsdt->entry[i] == 0)
+ break;
+ }
+
+ if (i >= entries_num) {
+ printk(BIOS_ERR, "ACPI: Error: Could not add ACPI table, "
+ "too many tables.\n");
+ return;
+ }
+
+ /* Add table to the RSDT. */
+ rsdt->entry[i] = (uintptr_t)table;
+
+ /* Fix RSDT length or the kernel will assume invalid entries. */
+ rsdt->header.length = sizeof(acpi_header_t) + (sizeof(u32) * (i + 1));
+
+ /* Re-calculate checksum. */
+ rsdt->header.checksum = 0; /* Hope this won't get optimized away */
+ rsdt->header.checksum = acpi_checksum((u8 *)rsdt, rsdt->header.length);
+
+ /*
+ * And now the same thing for the XSDT. We use the same index as for
+ * now we want the XSDT and RSDT to always be in sync in coreboot.
+ */
+ if (xsdt) {
+ /* Add table to the XSDT. */
+ xsdt->entry[i] = (u64)(uintptr_t)table;
+
+ /* Fix XSDT length. */
+ xsdt->header.length = sizeof(acpi_header_t) +
+ (sizeof(u64) * (i + 1));
+
+ /* Re-calculate checksum. */
+ xsdt->header.checksum = 0;
+ xsdt->header.checksum = acpi_checksum((u8 *)xsdt,
+ xsdt->header.length);
+ }
+
+ printk(BIOS_DEBUG, "ACPI: added table %d/%d, length now %d\n",
+ i + 1, entries_num, rsdt->header.length);
+}
+
+int acpi_create_mcfg_mmconfig(acpi_mcfg_mmconfig_t *mmconfig, u32 base,
+ u16 seg_nr, u8 start, u8 end)
+{
+ memset(mmconfig, 0, sizeof(*mmconfig));
+ mmconfig->base_address = base;
+ mmconfig->base_reserved = 0;
+ mmconfig->pci_segment_group_number = seg_nr;
+ mmconfig->start_bus_number = start;
+ mmconfig->end_bus_number = end;
+
+ return sizeof(acpi_mcfg_mmconfig_t);
+}
+
+int acpi_create_madt_lapic(acpi_madt_lapic_t *lapic, u8 cpu, u8 apic)
+{
+ lapic->type = 0; /* Local APIC structure */
+ lapic->length = sizeof(acpi_madt_lapic_t);
+ lapic->flags = (1 << 0); /* Processor/LAPIC enabled */
+ lapic->processor_id = cpu;
+ lapic->apic_id = apic;
+
+ return lapic->length;
+}
+
+unsigned long acpi_create_madt_lapics(unsigned long current)
+{
+ struct device *cpu;
+ int 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((acpi_madt_lapic_t *)current,
+ index, cpu->path.apic.apic_id);
+ index++;
+ }
+
+ return current;
+}
+
+int acpi_create_madt_ioapic(acpi_madt_ioapic_t *ioapic, u8 id, u32 addr,
+ u32 gsi_base)
+{
+ ioapic->type = 1; /* I/O APIC structure */
+ ioapic->length = sizeof(acpi_madt_ioapic_t);
+ ioapic->reserved = 0x00;
+ ioapic->gsi_base = gsi_base;
+ ioapic->ioapic_id = id;
+ ioapic->ioapic_addr = addr;
+
+ return ioapic->length;
+}
+
+int acpi_create_madt_irqoverride(acpi_madt_irqoverride_t *irqoverride,
+ u8 bus, u8 source, u32 gsirq, u16 flags)
+{
+ irqoverride->type = 2; /* Interrupt source override */
+ irqoverride->length = sizeof(acpi_madt_irqoverride_t);
+ irqoverride->bus = bus;
+ irqoverride->source = source;
+ irqoverride->gsirq = gsirq;
+ irqoverride->flags = flags;
+
+ return irqoverride->length;
+}
+
+int acpi_create_madt_lapic_nmi(acpi_madt_lapic_nmi_t *lapic_nmi, u8 cpu,
+ u16 flags, u8 lint)
+{
+ lapic_nmi->type = 4; /* Local APIC NMI structure */
+ lapic_nmi->length = sizeof(acpi_madt_lapic_nmi_t);
+ lapic_nmi->flags = flags;
+ lapic_nmi->processor_id = cpu;
+ lapic_nmi->lint = lint;
+
+ return lapic_nmi->length;
+}
+
+void acpi_create_madt(acpi_madt_t *madt)
+{
+ acpi_header_t *header = &(madt->header);
+ unsigned long current = (unsigned long)madt + sizeof(acpi_madt_t);
+
+ memset((void *)madt, 0, sizeof(acpi_madt_t));
+
+ /* Fill out header fields. */
+ memcpy(header->signature, "APIC", 4);
+ memcpy(header->oem_id, OEM_ID, 6);
+ memcpy(header->oem_table_id, ACPI_TABLE_CREATOR, 8);
+ memcpy(header->asl_compiler_id, ASLC, 4);
+
+ header->length = sizeof(acpi_madt_t);
+ header->revision = 1; /* ACPI 1.0/2.0: 1, ACPI 3.0: 2, ACPI 4.0: 3 */
+
+ madt->lapic_addr = LOCAL_APIC_ADDR;
+ madt->flags = 0x1; /* PCAT_COMPAT */
+
+ current = acpi_fill_madt(current);
+
+ /* (Re)calculate length and checksum. */
+ header->length = current - (unsigned long)madt;
+
+ header->checksum = acpi_checksum((void *)madt, header->length);
+}
+
+/* MCFG is defined in the PCI Firmware Specification 3.0. */
+void acpi_create_mcfg(acpi_mcfg_t *mcfg)
+{
+ acpi_header_t *header = &(mcfg->header);
+ unsigned long current = (unsigned long)mcfg + sizeof(acpi_mcfg_t);
+
+ memset((void *)mcfg, 0, sizeof(acpi_mcfg_t));
+
+ /* Fill out header fields. */
+ memcpy(header->signature, "MCFG", 4);
+ memcpy(header->oem_id, OEM_ID, 6);
+ memcpy(header->oem_table_id, ACPI_TABLE_CREATOR, 8);
+ memcpy(header->asl_compiler_id, ASLC, 4);
+
+ header->length = sizeof(acpi_mcfg_t);
+ header->revision = 1;
+
+ current = acpi_fill_mcfg(current);
+
+ /* (Re)calculate length and checksum. */
+ header->length = current - (unsigned long)mcfg;
+ header->checksum = acpi_checksum((void *)mcfg, header->length);
+}
+
+static void *get_tcpa_log(u32 *size)
+{
+ const struct cbmem_entry *ce;
+ const u32 tcpa_default_log_len = 0x10000;
+ void *lasa;
+ ce = cbmem_entry_find(CBMEM_ID_TCPA_LOG);
+ if (ce) {
+ lasa = cbmem_entry_start(ce);
+ *size = cbmem_entry_size(ce);
+ printk(BIOS_DEBUG, "TCPA log found at %p\n", lasa);
+ return lasa;
+ }
+ lasa = cbmem_add(CBMEM_ID_TCPA_LOG, tcpa_default_log_len);
+ if (!lasa) {
+ printk(BIOS_ERR, "TCPA log creation failed\n");
+ return NULL;
+ }
+
+ printk(BIOS_DEBUG, "TCPA log created at %p\n", lasa);
+ memset (lasa, 0, tcpa_default_log_len);
+
+ *size = tcpa_default_log_len;
+ return lasa;
+}
+
+static void acpi_create_tcpa(acpi_tcpa_t *tcpa)
+{
+ acpi_header_t *header = &(tcpa->header);
+ u32 tcpa_log_len;
+ void *lasa;
+
+ memset((void *)tcpa, 0, sizeof(acpi_tcpa_t));
+
+ lasa = get_tcpa_log(&tcpa_log_len);
+ if (!lasa) {
+ return;
+ }
+
+ /* Fill out header fields. */
+ memcpy(header->signature, "TCPA", 4);
+ memcpy(header->oem_id, OEM_ID, 6);
+ memcpy(header->oem_table_id, ACPI_TABLE_CREATOR, 8);
+ memcpy(header->asl_compiler_id, ASLC, 4);
+
+ header->length = sizeof(acpi_tcpa_t);
+ header->revision = 2;
+
+ tcpa->platform_class = 0;
+ tcpa->laml = tcpa_log_len;
+ tcpa->lasa = (uintptr_t) lasa;
+
+ /* Calculate checksum. */
+ header->checksum = acpi_checksum((void *)tcpa, header->length);
+}
+
+void acpi_create_ssdt_generator(acpi_header_t *ssdt, const char *oem_table_id)
+{
+ unsigned long current = (unsigned long)ssdt + sizeof(acpi_header_t);
+
+ memset((void *)ssdt, 0, sizeof(acpi_header_t));
+
+ memcpy(&ssdt->signature, "SSDT", 4);
+ ssdt->revision = 2; /* ACPI 1.0/2.0: ?, ACPI 3.0/4.0: 2 */
+ memcpy(&ssdt->oem_id, OEM_ID, 6);
+ memcpy(&ssdt->oem_table_id, oem_table_id, 8);
+ ssdt->oem_revision = 42;
+ memcpy(&ssdt->asl_compiler_id, ASLC, 4);
+ ssdt->asl_compiler_revision = 42;
+ ssdt->length = sizeof(acpi_header_t);
+
+ acpigen_set_current((char *) current);
+ {
+ struct device *dev;
+ for (dev = all_devices; dev; dev = dev->next)
+ if (dev->ops && dev->ops->acpi_fill_ssdt_generator) {
+ dev->ops->acpi_fill_ssdt_generator(dev);
+ }
+ current = (unsigned long) acpigen_get_current();
+ }
+
+ /* (Re)calculate length and checksum. */
+ ssdt->length = current - (unsigned long)ssdt;
+ ssdt->checksum = acpi_checksum((void *)ssdt, ssdt->length);
+}
+
+int acpi_create_srat_lapic(acpi_srat_lapic_t *lapic, u8 node, u8 apic)
+{
+ memset((void *)lapic, 0, sizeof(acpi_srat_lapic_t));
+
+ lapic->type = 0; /* Processor local APIC/SAPIC affinity structure */
+ lapic->length = sizeof(acpi_srat_lapic_t);
+ lapic->flags = (1 << 0); /* Enabled (the use of this structure). */
+ lapic->proximity_domain_7_0 = node;
+ /* TODO: proximity_domain_31_8, local SAPIC EID, clock domain. */
+ lapic->apic_id = apic;
+
+ return lapic->length;
+}
+
+int acpi_create_srat_mem(acpi_srat_mem_t *mem, u8 node, u32 basek, u32 sizek,
+ u32 flags)
+{
+ mem->type = 1; /* Memory affinity structure */
+ mem->length = sizeof(acpi_srat_mem_t);
+ mem->base_address_low = (basek << 10);
+ mem->base_address_high = (basek >> (32 - 10));
+ mem->length_low = (sizek << 10);
+ mem->length_high = (sizek >> (32 - 10));
+ mem->proximity_domain = node;
+ mem->flags = flags;
+
+ return mem->length;
+}
+
+/* http://www.microsoft.com/whdc/system/sysinternals/sratdwn.mspx */
+void acpi_create_srat(acpi_srat_t *srat,
+ unsigned long (*acpi_fill_srat)(unsigned long current))
+{
+ acpi_header_t *header = &(srat->header);
+ unsigned long current = (unsigned long)srat + sizeof(acpi_srat_t);
+
+ memset((void *)srat, 0, sizeof(acpi_srat_t));
+
+ /* Fill out header fields. */
+ memcpy(header->signature, "SRAT", 4);
+ memcpy(header->oem_id, OEM_ID, 6);
+ memcpy(header->oem_table_id, ACPI_TABLE_CREATOR, 8);
+ memcpy(header->asl_compiler_id, ASLC, 4);
+
+ header->length = sizeof(acpi_srat_t);
+ header->revision = 1; /* ACPI 1.0: N/A, 2.0: 1, 3.0: 2, 4.0: 3 */
+
+ srat->resv = 1; /* Spec: Reserved to 1 for backwards compatibility. */
+
+ current = acpi_fill_srat(current);
+
+ /* (Re)calculate length and checksum. */
+ header->length = current - (unsigned long)srat;
+ header->checksum = acpi_checksum((void *)srat, header->length);
+}
+
+void acpi_create_dmar(acpi_dmar_t *dmar,
+ unsigned long (*acpi_fill_dmar) (unsigned long))
+{
+ acpi_header_t *header = &(dmar->header);
+ unsigned long current = (unsigned long)dmar + sizeof(acpi_dmar_t);
+
+ memset((void *)dmar, 0, sizeof(acpi_dmar_t));
+
+ /* Fill out header fields. */
+ memcpy(header->signature, "DMAR", 4);
+ memcpy(header->oem_id, OEM_ID, 6);
+ memcpy(header->oem_table_id, ACPI_TABLE_CREATOR, 8);
+ memcpy(header->asl_compiler_id, ASLC, 4);
+
+ header->length = sizeof(acpi_dmar_t);
+ header->revision = 1;
+
+ dmar->host_address_width = 40 - 1; /* FIXME: == MTRR size? */
+ dmar->flags = 0;
+
+ current = acpi_fill_dmar(current);
+
+ /* (Re)calculate length and checksum. */
+ header->length = current - (unsigned long)dmar;
+ header->checksum = acpi_checksum((void *)dmar, header->length);
+}
+
+unsigned long acpi_create_dmar_drhd(unsigned long current, u8 flags,
+ u16 segment, u32 bar)
+{
+ dmar_entry_t *drhd = (dmar_entry_t *)current;
+ memset(drhd, 0, sizeof(*drhd));
+ drhd->type = DMAR_DRHD;
+ drhd->length = sizeof(*drhd); /* will be fixed up later */
+ drhd->flags = flags;
+ drhd->segment = segment;
+ drhd->bar = bar;
+
+ return drhd->length;
+}
+
+void acpi_dmar_drhd_fixup(unsigned long base, unsigned long current)
+{
+ dmar_entry_t *drhd = (dmar_entry_t *)base;
+ drhd->length = current - base;
+}
+
+unsigned long acpi_create_dmar_drhd_ds_pci(unsigned long current, u8 segment,
+ u8 dev, u8 fn)
+{
+ dev_scope_t *ds = (dev_scope_t *)current;
+ memset(ds, 0, sizeof(*ds));
+ ds->type = SCOPE_PCI_ENDPOINT;
+ ds->length = sizeof(*ds) + 2; /* we don't support longer paths yet */
+ ds->start_bus = segment;
+ ds->path[0].dev = dev;
+ ds->path[0].fn = fn;
+
+ return ds->length;
+}
+
+/* http://h21007.www2.hp.com/portal/download/files/unprot/Itanium/slit.pdf */
+void acpi_create_slit(acpi_slit_t *slit,
+ unsigned long (*acpi_fill_slit)(unsigned long current))
+{
+ acpi_header_t *header = &(slit->header);
+ unsigned long current = (unsigned long)slit + sizeof(acpi_slit_t);
+
+ memset((void *)slit, 0, sizeof(acpi_slit_t));
+
+ /* Fill out header fields. */
+ memcpy(header->signature, "SLIT", 4);
+ memcpy(header->oem_id, OEM_ID, 6);
+ memcpy(header->oem_table_id, ACPI_TABLE_CREATOR, 8);
+ memcpy(header->asl_compiler_id, ASLC, 4);
+
+ header->length = sizeof(acpi_slit_t);
+ header->revision = 1; /* ACPI 1.0: N/A, ACPI 2.0/3.0/4.0: 1 */
+
+ current = acpi_fill_slit(current);
+
+ /* (Re)calculate length and checksum. */
+ header->length = current - (unsigned long)slit;
+ header->checksum = acpi_checksum((void *)slit, header->length);
+}
+
+/* http://www.intel.com/hardwaredesign/hpetspec_1.pdf */
+void acpi_create_hpet(acpi_hpet_t *hpet)
+{
+ acpi_header_t *header = &(hpet->header);
+ acpi_addr_t *addr = &(hpet->addr);
+
+ memset((void *)hpet, 0, sizeof(acpi_hpet_t));
+
+ /* Fill out header fields. */
+ memcpy(header->signature, "HPET", 4);
+ memcpy(header->oem_id, OEM_ID, 6);
+ memcpy(header->oem_table_id, ACPI_TABLE_CREATOR, 8);
+ memcpy(header->asl_compiler_id, ASLC, 4);
+
+ header->length = sizeof(acpi_hpet_t);
+ header->revision = 1; /* Currently 1. Table added in ACPI 2.0. */
+
+ /* Fill out HPET address. */
+ addr->space_id = 0; /* Memory */
+ addr->bit_width = 64;
+ addr->bit_offset = 0;
+ addr->addrl = CONFIG_HPET_ADDRESS & 0xffffffff;
+ addr->addrh = ((unsigned long long)CONFIG_HPET_ADDRESS) >> 32;
+
+ hpet->id = *(unsigned int*)CONFIG_HPET_ADDRESS;
+ hpet->number = 0;
+ hpet->min_tick = CONFIG_HPET_MIN_TICKS;
+
+ header->checksum = acpi_checksum((void *)hpet, sizeof(acpi_hpet_t));
+}
+
+unsigned long acpi_write_hpet(device_t device, unsigned long current, acpi_rsdp_t *rsdp)
+{
+ acpi_hpet_t *hpet;
+
+ /*
+ * We explicitly add these tables later on:
+ */
+ printk(BIOS_DEBUG, "ACPI: * HPET\n");
+
+ hpet = (acpi_hpet_t *) current;
+ current += sizeof(acpi_hpet_t);
+ current = ALIGN(current, 16);
+ acpi_create_hpet(hpet);
+ acpi_add_table(rsdp, hpet);
+
+ return current;
+}
+
+void acpi_create_facs(acpi_facs_t *facs)
+{
+ memset((void *)facs, 0, sizeof(acpi_facs_t));
+
+ memcpy(facs->signature, "FACS", 4);
+ facs->length = sizeof(acpi_facs_t);
+ facs->hardware_signature = 0;
+ facs->firmware_waking_vector = 0;
+ facs->global_lock = 0;
+ facs->flags = 0;
+ facs->x_firmware_waking_vector_l = 0;
+ facs->x_firmware_waking_vector_h = 0;
+ facs->version = 1; /* ACPI 1.0: 0, ACPI 2.0/3.0: 1, ACPI 4.0: 2 */
+}
+
+static void acpi_write_rsdt(acpi_rsdt_t *rsdt, char *oem_id, char *oem_table_id)
+{
+ acpi_header_t *header = &(rsdt->header);
+
+ /* Fill out header fields. */
+ memcpy(header->signature, "RSDT", 4);
+ memcpy(header->oem_id, oem_id, 6);
+ memcpy(header->oem_table_id, oem_table_id, 8);
+ memcpy(header->asl_compiler_id, ASLC, 4);
+
+ header->length = sizeof(acpi_rsdt_t);
+ header->revision = 1; /* ACPI 1.0/2.0/3.0/4.0: 1 */
+
+ /* Entries are filled in later, we come with an empty set. */
+
+ /* Fix checksum. */
+ header->checksum = acpi_checksum((void *)rsdt, sizeof(acpi_rsdt_t));
+}
+
+static void acpi_write_xsdt(acpi_xsdt_t *xsdt, char *oem_id, char *oem_table_id)
+{
+ acpi_header_t *header = &(xsdt->header);
+
+ /* Fill out header fields. */
+ memcpy(header->signature, "XSDT", 4);
+ memcpy(header->oem_id, oem_id, 6);
+ memcpy(header->oem_table_id, oem_table_id, 8);
+ memcpy(header->asl_compiler_id, ASLC, 4);
+
+ header->length = sizeof(acpi_xsdt_t);
+ header->revision = 1; /* ACPI 1.0: N/A, 2.0/3.0/4.0: 1 */
+
+ /* Entries are filled in later, we come with an empty set. */
+
+ /* Fix checksum. */
+ header->checksum = acpi_checksum((void *)xsdt, sizeof(acpi_xsdt_t));
+}
+
+static void acpi_write_rsdp(acpi_rsdp_t *rsdp, acpi_rsdt_t *rsdt,
+ acpi_xsdt_t *xsdt, char *oem_id)
+{
+ memset(rsdp, 0, sizeof(acpi_rsdp_t));
+
+ memcpy(rsdp->signature, RSDP_SIG, 8);
+ memcpy(rsdp->oem_id, oem_id, 6);
+
+ rsdp->length = sizeof(acpi_rsdp_t);
+ rsdp->rsdt_address = (uintptr_t)rsdt;
+
+ /*
+ * Revision: ACPI 1.0: 0, ACPI 2.0/3.0/4.0: 2.
+ *
+ * Some OSes expect an XSDT to be present for RSD PTR revisions >= 2.
+ * If we don't have an ACPI XSDT, force ACPI 1.0 (and thus RSD PTR
+ * revision 0).
+ */
+ if (xsdt == NULL) {
+ rsdp->revision = 0;
+ } else {
+ rsdp->xsdt_address = (u64)(uintptr_t)xsdt;
+ rsdp->revision = 2;
+ }
+
+ /* Calculate checksums. */
+ rsdp->checksum = acpi_checksum((void *)rsdp, 20);
+ rsdp->ext_checksum = acpi_checksum((void *)rsdp, sizeof(acpi_rsdp_t));
+}
+
+unsigned long acpi_create_hest_error_source(acpi_hest_t *hest, acpi_hest_esd_t *esd, u16 type, void *data, u16 data_len)
+{
+ acpi_header_t *header = &(hest->header);
+ acpi_hest_hen_t *hen;
+ void *pos;
+ u16 len;
+
+ pos = esd;
+ memset(pos, 0, sizeof(acpi_hest_esd_t));
+ len = 0;
+ esd->type = type; /* MCE */
+ esd->source_id = hest->error_source_count;
+ esd->flags = 0; /* FIRMWARE_FIRST */
+ esd->enabled = 1;
+ esd->prealloc_erecords = 1;
+ esd->max_section_per_record = 0x1;
+
+ len += sizeof(acpi_hest_esd_t);
+ pos = esd + 1;
+
+ switch (type) {
+ case 0: /* MCE */
+ break;
+ case 1: /* CMC */
+ hen = (acpi_hest_hen_t *) (pos);
+ memset(pos, 0, sizeof(acpi_hest_hen_t));
+ hen->type = 3; /* SCI? */
+ hen->length = sizeof(acpi_hest_hen_t);
+ hen->conf_we = 0; /* Configuration Write Enable. */
+ hen->poll_interval = 0;
+ hen->vector = 0;
+ hen->sw2poll_threshold_val = 0;
+ hen->sw2poll_threshold_win = 0;
+ hen->error_threshold_val = 0;
+ hen->error_threshold_win = 0;
+ len += sizeof(acpi_hest_hen_t);
+ pos = hen + 1;
+ break;
+ case 2: /* NMI */
+ case 6: /* AER Root Port */
+ case 7: /* AER Endpoint */
+ case 8: /* AER Bridge */
+ case 9: /* Generic Hardware Error Source. */
+ /* TODO: */
+ break;
+ default:
+ printk(BIOS_DEBUG, "Invalid type of Error Source.");
+ break;
+ }
+ hest->error_source_count ++;
+
+ memcpy(pos, data, data_len);
+ len += data_len;
+ header->length += len;
+
+ return len;
+}
+
+/* ACPI 4.0 */
+void acpi_write_hest(acpi_hest_t *hest,
+ unsigned long (*acpi_fill_hest)(acpi_hest_t *hest))
+{
+ acpi_header_t *header = &(hest->header);
+
+ memset(hest, 0, sizeof(acpi_hest_t));
+
+ memcpy(header->signature, "HEST", 4);
+ memcpy(header->oem_id, OEM_ID, 6);
+ memcpy(header->oem_table_id, ACPI_TABLE_CREATOR, 8);
+ memcpy(header->asl_compiler_id, ASLC, 4);
+ header->length += sizeof(acpi_hest_t);
+ header->revision = 1;
+
+ acpi_fill_hest(hest);
+
+ /* Calculate checksums. */
+ header->checksum = acpi_checksum((void *)hest, header->length);
+}
+
+#if IS_ENABLED(CONFIG_COMMON_FADT)
+void acpi_create_fadt(acpi_fadt_t *fadt,acpi_facs_t *facs, void *dsdt)
+{
+ acpi_header_t *header = &(fadt->header);
+
+ memset((void *) fadt, 0, sizeof(acpi_fadt_t));
+ memcpy(header->signature, "FACP", 4);
+ header->length = sizeof(acpi_fadt_t);
+ header->revision = 4;
+ memcpy(header->oem_id, OEM_ID, 6);
+ memcpy(header->oem_table_id, ACPI_TABLE_CREATOR, 8);
+ memcpy(header->asl_compiler_id, ASLC, 4);
+ header->asl_compiler_revision = 0;
+
+ fadt->firmware_ctrl = (unsigned long) facs;
+ fadt->dsdt = (unsigned long) dsdt;
+
+ fadt->x_firmware_ctl_l = (unsigned long)facs;
+ fadt->x_firmware_ctl_h = 0;
+ fadt->x_dsdt_l = (unsigned long)dsdt;
+ fadt->x_dsdt_h = 0;
+
+ if(IS_ENABLED(CONFIG_SYSTEM_TYPE_LAPTOP)) {
+ fadt->preferred_pm_profile = PM_MOBILE;
+ } else {
+ fadt->preferred_pm_profile = PM_DESKTOP;
+ }
+
+ acpi_fill_fadt(fadt);
+
+ header->checksum =
+ acpi_checksum((void *) fadt, header->length);
+}
+#endif
+
+unsigned long __attribute__ ((weak)) fw_cfg_acpi_tables(unsigned long start)
+{
+ return 0;
+}
+
+#define ALIGN_CURRENT current = (ALIGN(current, 16))
+unsigned long write_acpi_tables(unsigned long start)
+{
+ unsigned long current;
+ acpi_rsdp_t *rsdp;
+ acpi_rsdt_t *rsdt;
+ acpi_xsdt_t *xsdt;
+ acpi_fadt_t *fadt;
+ acpi_facs_t *facs;
+ acpi_header_t *slic_file, *slic;
+ acpi_header_t *ssdt;
+ acpi_header_t *dsdt_file, *dsdt;
+ acpi_mcfg_t *mcfg;
+ acpi_tcpa_t *tcpa;
+ acpi_madt_t *madt;
+ struct device *dev;
+ unsigned long fw;
+ size_t slic_size, dsdt_size;
+ char oem_id[6], oem_table_id[8];
+
+ current = start;
+
+ /* Align ACPI tables to 16byte */
+ ALIGN_CURRENT;
+
+ fw = fw_cfg_acpi_tables(current);
+ if (fw)
+ return fw;
+
+#if CONFIG_COMPILE_IN_DSDT
+ extern char _binary_dsdt_aml_start;
+ extern char _binary_dsdt_aml_end;
+ dsdt_file = (acpi_header_t *)&_binary_dsdt_aml_start;
+ dsdt_size = (size_t)(&_binary_dsdt_aml_end - &_binary_dsdt_aml_start);
+#else
+ dsdt_file = cbfs_boot_map_with_leak(
+ CONFIG_CBFS_PREFIX "/dsdt.aml",
+ CBFS_TYPE_RAW, &dsdt_size);
+#endif
+ if (!dsdt_file) {
+ printk(BIOS_ERR, "No DSDT file, skipping ACPI tables\n");
+ return current;
+ }
+
+ if (dsdt_file->length > dsdt_size
+ || dsdt_file->length < sizeof (acpi_header_t)
+ || memcmp(dsdt_file->signature, "DSDT", 4) != 0) {
+ printk(BIOS_ERR, "Invalid DSDT file, skipping ACPI tables\n");
+ return current;
+ }
+
+ slic_file = cbfs_boot_map_with_leak(CONFIG_CBFS_PREFIX "/slic",
+ CBFS_TYPE_RAW, &slic_size);
+ if (slic_file
+ && (slic_file->length > slic_size
+ || slic_file->length < sizeof (acpi_header_t)
+ || memcmp(slic_file->signature, "SLIC", 4) != 0)) {
+ slic_file = 0;
+ }
+
+ if (slic_file) {
+ memcpy(oem_id, slic_file->oem_id, 6);
+ memcpy(oem_table_id, slic_file->oem_table_id, 8);
+ } else {
+ memcpy(oem_id, OEM_ID, 6);
+ memcpy(oem_table_id, ACPI_TABLE_CREATOR, 8);
+ }
+
+ 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);
+ ALIGN_CURRENT;
+ rsdt = (acpi_rsdt_t *) current;
+ current += sizeof(acpi_rsdt_t);
+ ALIGN_CURRENT;
+ xsdt = (acpi_xsdt_t *) current;
+ current += sizeof(acpi_xsdt_t);
+ ALIGN_CURRENT;
+
+ /* clear all table memory */
+ memset((void *) start, 0, current - start);
+
+ acpi_write_rsdp(rsdp, rsdt, xsdt, oem_id);
+ acpi_write_rsdt(rsdt, oem_id, oem_table_id);
+ acpi_write_xsdt(xsdt, oem_id, oem_table_id);
+
+ printk(BIOS_DEBUG, "ACPI: * FACS\n");
+ facs = (acpi_facs_t *) current;
+ current += sizeof(acpi_facs_t);
+ ALIGN_CURRENT;
+ acpi_create_facs(facs);
+
+ printk(BIOS_DEBUG, "ACPI: * DSDT\n");
+ dsdt = (acpi_header_t *) current;
+ memcpy(dsdt, dsdt_file, sizeof(acpi_header_t));
+ if (dsdt->length >= sizeof(acpi_header_t)) {
+ current += sizeof(acpi_header_t);
+
+ acpigen_set_current((char *) current);
+ for (dev = all_devices; dev; dev = dev->next)
+ if (dev->ops && dev->ops->acpi_inject_dsdt_generator) {
+ dev->ops->acpi_inject_dsdt_generator(dev);
+ }
+ current = (unsigned long) acpigen_get_current();
+ memcpy((char *)current,
+ (char *)dsdt_file + sizeof(acpi_header_t),
+ dsdt->length - sizeof(acpi_header_t));
+ current += dsdt->length - sizeof(acpi_header_t);
+
+ /* (Re)calculate length and checksum. */
+ dsdt->length = current - (unsigned long)dsdt;
+ dsdt->checksum = 0;
+ dsdt->checksum = acpi_checksum((void *)dsdt, dsdt->length);
+ }
+
+ ALIGN_CURRENT;
+
+ printk(BIOS_DEBUG, "ACPI: * FADT\n");
+ fadt = (acpi_fadt_t *) current;
+ current += sizeof(acpi_fadt_t);
+ ALIGN_CURRENT;
+
+ acpi_create_fadt(fadt, facs, dsdt);
+ acpi_add_table(rsdp, fadt);
+
+ if (slic_file) {
+ printk(BIOS_DEBUG, "ACPI: * SLIC\n");
+ slic = (acpi_header_t *)current;
+ memcpy(slic, slic_file, slic_file->length);
+ current += slic_file->length;
+ ALIGN_CURRENT;
+ acpi_add_table(rsdp, slic);
+ }
+
+ printk(BIOS_DEBUG, "ACPI: * SSDT\n");
+ ssdt = (acpi_header_t *)current;
+ acpi_create_ssdt_generator(ssdt, ACPI_TABLE_CREATOR);
+ if (ssdt->length > sizeof(acpi_header_t)) {
+ current += ssdt->length;
+ acpi_add_table(rsdp, ssdt);
+ ALIGN_CURRENT;
+ }
+
+ printk(BIOS_DEBUG, "ACPI: * MCFG\n");
+ mcfg = (acpi_mcfg_t *) current;
+ acpi_create_mcfg(mcfg);
+ if (mcfg->header.length > sizeof(acpi_mcfg_t)) {
+ current += mcfg->header.length;
+ ALIGN_CURRENT;
+ acpi_add_table(rsdp, mcfg);
+ }
+
+ printk(BIOS_DEBUG, "ACPI: * TCPA\n");
+ tcpa = (acpi_tcpa_t *) current;
+ acpi_create_tcpa(tcpa);
+ if (tcpa->header.length >= sizeof(acpi_tcpa_t)) {
+ current += tcpa->header.length;
+ ALIGN_CURRENT;
+ acpi_add_table(rsdp, tcpa);
+ }
+
+ printk(BIOS_DEBUG, "ACPI: * MADT\n");
+
+ madt = (acpi_madt_t *) current;
+ acpi_create_madt(madt);
+ if (madt->header.length > sizeof(acpi_madt_t)) {
+ current+=madt->header.length;
+ acpi_add_table(rsdp,madt);
+ }
+ ALIGN_CURRENT;
+
+ printk(BIOS_DEBUG, "current = %lx\n", current);
+
+ for (dev = all_devices; dev; dev = dev->next) {
+ if (dev->ops && dev->ops->write_acpi_tables) {
+ current = dev->ops->write_acpi_tables(dev, current, rsdp);
+ ALIGN_CURRENT;
+ }
+ }
+
+ printk(BIOS_INFO, "ACPI: done.\n");
+ return current;
+}
+
+#if CONFIG_HAVE_ACPI_RESUME
+void __attribute__((weak)) mainboard_suspend_resume(void)
+{
+}
+
+void acpi_resume(void *wake_vec)
+{
+#if CONFIG_HAVE_SMI_HANDLER
+ u32 *gnvs_address = cbmem_find(CBMEM_ID_ACPI_GNVS_PTR);
+
+ /* Restore GNVS pointer in SMM if found */
+ if (gnvs_address && *gnvs_address) {
+ printk(BIOS_DEBUG, "Restore GNVS pointer to 0x%08x\n",
+ *gnvs_address);
+ smm_setup_structures((void *)*gnvs_address, NULL, NULL);
+ }
+#endif
+
+ /* Call mainboard resume handler first, if defined. */
+ mainboard_suspend_resume();
+
+ post_code(POST_OS_RESUME);
+ acpi_jump_to_wakeup(wake_vec);
+}
+
+/* This is filled with acpi_is_wakeup() call early in ramstage. */
+int acpi_slp_type = -1;
+
+#if IS_ENABLED(CONFIG_EARLY_CBMEM_INIT)
+int acpi_get_sleep_type(void)
+{
+ struct romstage_handoff *handoff;
+
+ handoff = cbmem_find(CBMEM_ID_ROMSTAGE_INFO);
+
+ if (handoff == NULL) {
+ printk(BIOS_DEBUG, "Unknown boot method, assuming normal.\n");
+ return 0;
+ } else if (handoff->s3_resume) {
+ printk(BIOS_DEBUG, "S3 Resume.\n");
+ return 3;
+ } else {
+ printk(BIOS_DEBUG, "Normal boot.\n");
+ return 0;
+ }
+}
+#endif
+
+static void acpi_handoff_wakeup(void)
+{
+ if (acpi_slp_type < 0)
+ acpi_slp_type = acpi_get_sleep_type();
+}
+
+int acpi_is_wakeup(void)
+{
+ acpi_handoff_wakeup();
+ /* Both resume from S2 and resume from S3 restart at CPU reset */
+ return (acpi_slp_type == 3 || acpi_slp_type == 2);
+}
+
+int acpi_is_wakeup_s3(void)
+{
+ acpi_handoff_wakeup();
+ return (acpi_slp_type == 3);
+}
+
+void acpi_fail_wakeup(void)
+{
+ if (acpi_slp_type == 3 || acpi_slp_type == 2)
+ acpi_slp_type = 0;
+}
+
+void acpi_prepare_resume_backup(void)
+{
+ if (!acpi_s3_resume_allowed())
+ return;
+
+ /* Let's prepare the ACPI S3 Resume area now already, so we can rely on
+ * it being there during reboot time. We don't need the pointer, nor
+ * the result right now. If it fails, ACPI resume will be disabled.
+ */
+
+ if (HIGH_MEMORY_SAVE)
+ cbmem_add(CBMEM_ID_RESUME, HIGH_MEMORY_SAVE);
+}
+
+static acpi_rsdp_t *valid_rsdp(acpi_rsdp_t *rsdp)
+{
+ if (strncmp((char *)rsdp, RSDP_SIG, sizeof(RSDP_SIG) - 1) != 0)
+ return NULL;
+
+ printk(BIOS_DEBUG, "Looking on %p for valid checksum\n", rsdp);
+
+ if (acpi_checksum((void *)rsdp, 20) != 0)
+ return NULL;
+ printk(BIOS_DEBUG, "Checksum 1 passed\n");
+
+ if ((rsdp->revision > 1) && (acpi_checksum((void *)rsdp,
+ rsdp->length) != 0))
+ return NULL;
+ printk(BIOS_DEBUG, "Checksum 2 passed all OK\n");
+
+ return rsdp;
+}
+
+static acpi_rsdp_t *rsdp;
+
+void *acpi_get_wakeup_rsdp(void)
+{
+ return rsdp;
+}
+
+void *acpi_find_wakeup_vector(void)
+{
+ char *p, *end;
+ acpi_rsdt_t *rsdt;
+ acpi_facs_t *facs;
+ acpi_fadt_t *fadt = NULL;
+ void *wake_vec;
+ int i;
+
+ rsdp = NULL;
+
+ if (!acpi_is_wakeup())
+ return NULL;
+
+ printk(BIOS_DEBUG, "Trying to find the wakeup vector...\n");
+
+ /* Find RSDP. */
+ for (p = (char *)0xe0000; p < (char *)0xfffff; p += 16) {
+ if ((rsdp = valid_rsdp((acpi_rsdp_t *)p)))
+ break;
+ }
+
+ if (rsdp == NULL)
+ return NULL;
+
+ printk(BIOS_DEBUG, "RSDP found at %p\n", rsdp);
+ rsdt = (acpi_rsdt_t *) rsdp->rsdt_address;
+
+ end = (char *)rsdt + rsdt->header.length;
+ printk(BIOS_DEBUG, "RSDT found at %p ends at %p\n", rsdt, end);
+
+ for (i = 0; ((char *)&rsdt->entry[i]) < end; i++) {
+ fadt = (acpi_fadt_t *)rsdt->entry[i];
+ if (strncmp((char *)fadt, "FACP", 4) == 0)
+ break;
+ fadt = NULL;
+ }
+
+ if (fadt == NULL)
+ return NULL;
+
+ printk(BIOS_DEBUG, "FADT found at %p\n", fadt);
+ facs = (acpi_facs_t *)fadt->firmware_ctrl;
+
+ if (facs == NULL) {
+ printk(BIOS_DEBUG, "No FACS found, wake up from S3 not "
+ "possible.\n");
+ return NULL;
+ }
+
+ printk(BIOS_DEBUG, "FACS found at %p\n", facs);
+ wake_vec = (void *)facs->firmware_waking_vector;
+ printk(BIOS_DEBUG, "OS waking vector is %p\n", wake_vec);
+
+ return wake_vec;
+}
+
+#if CONFIG_SMP
+extern char *lowmem_backup;
+extern char *lowmem_backup_ptr;
+extern int lowmem_backup_size;
+#endif
+
+#define WAKEUP_BASE 0x600
+
+void (*acpi_do_wakeup)(u32 vector, u32 backup_source, u32 backup_target,
+ u32 backup_size) asmlinkage = (void *)WAKEUP_BASE;
+
+extern unsigned char __wakeup;
+extern unsigned int __wakeup_size;
+
+void acpi_jump_to_wakeup(void *vector)
+{
+ u32 acpi_backup_memory = 0;
+
+ if (HIGH_MEMORY_SAVE && acpi_s3_resume_allowed()) {
+ acpi_backup_memory = (u32)cbmem_find(CBMEM_ID_RESUME);
+
+ if (!acpi_backup_memory) {
+ printk(BIOS_WARNING, "ACPI: Backup memory missing. "
+ "No S3 resume.\n");
+ return;
+ }
+ }
+
+#if CONFIG_SMP
+ // FIXME: This should go into the ACPI backup memory, too. No pork sausages.
+ /*
+ * Just restore the SMP trampoline and continue with wakeup on
+ * assembly level.
+ */
+ memcpy(lowmem_backup_ptr, lowmem_backup, lowmem_backup_size);
+#endif
+
+ /* Copy wakeup trampoline in place. */
+ memcpy((void *)WAKEUP_BASE, &__wakeup, __wakeup_size);
+
+ timestamp_add_now(TS_ACPI_WAKE_JUMP);
+
+ acpi_do_wakeup((u32)vector, acpi_backup_memory, CONFIG_RAMBASE,
+ HIGH_MEMORY_SAVE);
+}
+#endif
+
+void acpi_save_gnvs(u32 gnvs_address)
+{
+ u32 *gnvs = cbmem_add(CBMEM_ID_ACPI_GNVS_PTR, sizeof(*gnvs));
+ if (gnvs)
+ *gnvs = gnvs_address;
+}