/*
* LinuxBIOS ACPI Table support
* written by Stefan Reinauer <stepan@openbios.org>
- * (C) 2004 SUSE LINUX AG
+ * (C) 2004 SUSE LINUX AG
+ * (C) 2005 Stefan Reinauer
+ *
+ * ACPI FADT, FACS, and DSDT table support added by
+ * Nick Barker <nick.barker9@btinternet.com>, and those portions
+ * (C) Copyright 2004 Nick Barker
+ *
+ * Copyright 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 AMD Solo, Island Aruma or Via Epia-M port for more details.
*/
#include <console/console.h>
#include <string.h>
#include <arch/acpi.h>
+#include <device/pci.h>
-#define RSDP_SIG "RSD PTR " /* RSDT Pointer signature */
-#define RSDP_NAME "RSDP"
-
-#define RSDT_NAME "RSDT"
-#define HPET_NAME "HPET"
-#define MADT_NAME "APIC"
-
-#define RSDT_TABLE "RSDT "
-#define HPET_TABLE "AMD64 "
-#define MADT_TABLE "MADT "
-
-#define OEM_ID "LXBIOS"
-#define ASLC "NONE"
-
-static u8 acpi_checksum(u8 *table, u32 length)
+u8 acpi_checksum(u8 *table, u32 length)
{
u8 ret=0;
while (length--) {
* add an acpi table to rsdt structure, and recalculate checksum
*/
-static void acpi_add_table(acpi_rsdt_t *rsdt, void *table)
+void acpi_add_table(acpi_rsdt_t *rsdt, void *table)
{
int i;
-
- for (i=0; i<8; i++) {
+
+ int entries_num = sizeof(rsdt->entry)/sizeof(rsdt->entry[0]);
+
+ for (i=0; i<entries_num; i++) {
if(rsdt->entry[i]==0) {
rsdt->entry[i]=(u32)table;
+ /* fix length to stop kernel winging about invalid entries */
+ rsdt->header.length = sizeof(acpi_header_t) + (sizeof(u32) * (i+1));
/* fix checksum */
/* hope this won't get optimized away */
rsdt->header.checksum=0;
rsdt->header.checksum=acpi_checksum((u8 *)rsdt,
rsdt->header.length);
- printk_debug("ACPI: added table %d/8\n",i+1);
+ printk_debug("ACPI: added table %d/%d Length now %d\n",i+1, entries_num, rsdt->header.length);
return;
}
}
- printk_warning("ACPI: could not ACPI table. failed.\n");
+ printk_warning("ACPI: could not add ACPI table to RSDT. failed.\n");
}
-static int acpi_create_madt_lapic(acpi_madt_lapic_t *lapic, u8 cpu, u8 apic)
+int acpi_create_madt_lapic(acpi_madt_lapic_t *lapic, u8 cpu, u8 apic)
{
lapic->type=0;
lapic->length=sizeof(acpi_madt_lapic_t);
return(lapic->length);
}
-static int acpi_create_madt_ioapic(acpi_madt_ioapic_t *ioapic, u8 id, u32 addr)
+int acpi_create_madt_ioapic(acpi_madt_ioapic_t *ioapic, u8 id, u32 addr,u32 gsi_base)
{
ioapic->type=1;
ioapic->length=sizeof(acpi_madt_ioapic_t);
ioapic->reserved=0x00;
- ioapic->gsi_base=0x00000000;
+ ioapic->gsi_base=gsi_base;
ioapic->ioapic_id=id;
ioapic->ioapic_addr=addr;
return(ioapic->length);
}
-static int acpi_create_madt_irqoverride(acpi_madt_irqoverride_t *irqoverride,
+int acpi_create_madt_irqoverride(acpi_madt_irqoverride_t *irqoverride,
u8 bus, u8 source, u32 gsirq, u16 flags)
{
irqoverride->type=2;
irqoverride->length=sizeof(acpi_madt_irqoverride_t);
- irqoverride->flags=0x0001;
-
irqoverride->bus=bus;
irqoverride->source=source;
irqoverride->gsirq=gsirq;
return(irqoverride->length);
}
-static int acpi_create_madt_lapic_nmi(acpi_madt_lapic_nmi_t *lapic_nmi, u8 cpu,
+int acpi_create_madt_lapic_nmi(acpi_madt_lapic_nmi_t *lapic_nmi, u8 cpu,
u16 flags, u8 lint)
{
lapic_nmi->type=4;
return(lapic_nmi->length);
}
-static void acpi_create_madt(acpi_madt_t *madt)
+void acpi_create_madt(acpi_madt_t *madt)
{
#define LOCAL_APIC_ADDR 0xfee00000ULL
-#define IO_APIC_ADDR 0xfec00000UL
+
acpi_header_t *header=&(madt->header);
unsigned long current=(unsigned long)madt+sizeof(acpi_madt_t);
madt->lapic_addr= LOCAL_APIC_ADDR;
madt->flags = 0x1; /* PCAT_COMPAT */
-
- /* create all subtables for 1p */
- current += acpi_create_madt_lapic((acpi_madt_lapic_t *)current, 0, 0);
- current += acpi_create_madt_ioapic((acpi_madt_ioapic_t *)current, 2,
- IO_APIC_ADDR);
- current += acpi_create_madt_irqoverride( (acpi_madt_irqoverride_t *)
- current, 0, 0, 2, 1 /* active high */);
- current += acpi_create_madt_irqoverride( (acpi_madt_irqoverride_t *)
- current, 0, 9, 9, 0xf /* active low, level triggered */);
- current += acpi_create_madt_lapic_nmi( (acpi_madt_lapic_nmi_t *)
- current, 0, 5, 1);
+ current = acpi_fill_madt(current);
+
/* recalculate length */
header->length= current - (unsigned long)madt;
header->checksum = acpi_checksum((void *)madt, header->length);
}
+int acpi_create_srat_lapic(acpi_srat_lapic_t *lapic, u8 node, u8 apic)
+{
+ lapic->type=0;
+ lapic->length=sizeof(acpi_srat_lapic_t);
+ lapic->flags=1;
+
+ lapic->proximity_domain_7_0 = node;
+ 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;
+ 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);
+}
+
+void acpi_create_srat(acpi_srat_t *srat)
+{
+
+ 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_NAME, 4);
+ memcpy(header->oem_id, OEM_ID, 6);
+ memcpy(header->oem_table_id, SRAT_TABLE, 8);
+ memcpy(header->asl_compiler_id, ASLC, 4);
+
+ header->length = sizeof(acpi_srat_t);
+ header->revision = 1;
+
+ srat->resv = 0x1; /* BACK COMP */
+
+ current = acpi_fill_srat(current);
+
+ /* recalculate length */
+ header->length= current - (unsigned long)srat;
+
+ header->checksum = acpi_checksum((void *)srat, header->length);
+}
+
+void acpi_create_slit(acpi_slit_t *slit)
+{
+
+ 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_NAME, 4);
+ memcpy(header->oem_id, OEM_ID, 6);
+ memcpy(header->oem_table_id, SLIT_TABLE, 8);
+ memcpy(header->asl_compiler_id, ASLC, 4);
+
+ header->length = sizeof(acpi_slit_t);
+ header->revision = 1;
+
+// current = acpi_fill_slit(current);
+
+ /* recalculate length */
+ header->length= current - (unsigned long)slit;
-static void acpi_create_hpet(acpi_hpet_t *hpet)
+ header->checksum = acpi_checksum((void *)slit, header->length);
+}
+
+void acpi_create_hpet(acpi_hpet_t *hpet)
{
#define HPET_ADDR 0xfed00000ULL
acpi_header_t *header=&(hpet->header);
header->checksum = acpi_checksum((void *)hpet, sizeof(acpi_hpet_t));
}
-static void acpi_write_rsdt(acpi_rsdt_t *rsdt)
+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;
+}
+
+void acpi_write_rsdt(acpi_rsdt_t *rsdt)
{
acpi_header_t *header=&(rsdt->header);
header->checksum = acpi_checksum((void *)rsdt, sizeof(acpi_rsdt_t));
}
-static void acpi_write_rsdp(acpi_rsdp_t *rsdp, acpi_rsdt_t *rsdt)
+void acpi_write_rsdp(acpi_rsdp_t *rsdp, acpi_rsdt_t *rsdt)
{
memcpy(rsdp->signature, RSDP_SIG, 8);
memcpy(rsdp->oem_id, OEM_ID, 6);
rsdp->rsdt_address = (u32)rsdt;
rsdp->checksum = acpi_checksum((void *)rsdp, 20);
rsdp->ext_checksum = acpi_checksum((void *)rsdp, sizeof(acpi_rsdp_t));
-
}
-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;
-
- /* Align ACPI tables to 16byte */
- start = ( start + 0x0f ) & -0x10;
- current = start;
-
- printk_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);
- acpi_write_rsdt(rsdt);
-
- /*
- * We explicitly add these tables later on:
- */
-#define HAVE_ACPI_HPET
-#ifdef HAVE_ACPI_HPET
- printk_debug("ACPI: * HPET\n");
-
- hpet = (acpi_hpet_t *) current;
- current += sizeof(acpi_hpet_t);
- acpi_create_hpet(hpet);
- acpi_add_table(rsdt,hpet);
-
- /* If we want to use HPET Timers Linux wants an MADT */
- printk_debug("ACPI: * MADT\n");
-
- madt = (acpi_madt_t *) current;
- acpi_create_madt(madt);
- current+=madt->header.length;
- acpi_add_table(rsdt,madt);
-
-
-#endif
- printk_info("ACPI: done.\n");
- return current;
-}
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