Ejemplo n.º 1
0
Archivo: acpi.c Proyecto: af00/coreboot
void southbridge_inject_dsdt(device_t device)
{
	struct global_nvs_t *gnvs;

	gnvs = cbmem_find(CBMEM_ID_ACPI_GNVS);

	if (gnvs) {
		acpi_create_gnvs(gnvs);
		acpi_save_gnvs((uintptr_t)gnvs);
		/* And tell SMI about it */
		smm_setup_structures(gnvs, NULL, NULL);

		/* Add it to DSDT.  */
		acpigen_write_scope("\\");
		acpigen_write_name_dword("NVSA", (uintptr_t)gnvs);
		acpigen_pop_len();
	}
}
Ejemplo n.º 2
0
void southcluster_inject_dsdt(device_t device)
{
	global_nvs_t *gnvs;

	gnvs = cbmem_find(CBMEM_ID_ACPI_GNVS);
	if (!gnvs) {
		gnvs = cbmem_add(CBMEM_ID_ACPI_GNVS, sizeof (*gnvs));
		if (gnvs)
			memset(gnvs, 0, sizeof(*gnvs));
	}

	if (gnvs) {
		acpi_create_gnvs(gnvs);
		acpi_save_gnvs((unsigned long)gnvs);
		/* And tell SMI about it */
		smm_setup_structures(gnvs, NULL, NULL);

		/* Add it to DSDT.  */
		acpigen_write_scope("\\");
		acpigen_write_name_dword("NVSA", (u32) gnvs);
		acpigen_pop_len();
	}
}
Ejemplo n.º 3
0
unsigned long write_acpi_tables(unsigned long start)
{
	unsigned long current;
	int i;
	acpi_rsdp_t *rsdp;
	acpi_rsdt_t *rsdt;
	acpi_xsdt_t *xsdt;
	acpi_hpet_t *hpet;
	acpi_madt_t *madt;
	acpi_mcfg_t *mcfg;
	acpi_fadt_t *fadt;
	acpi_facs_t *facs;
#if CONFIG_HAVE_ACPI_SLIC
	acpi_header_t *slic;
#endif
	acpi_header_t *ssdt;
	acpi_header_t *dsdt;
	global_nvs_t *gnvs;

	current = start;

	/* Align ACPI tables to 16byte */
	ALIGN_CURRENT;

	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);
	acpi_write_rsdt(rsdt);
	acpi_write_xsdt(xsdt);

	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, &AmlCode, sizeof(acpi_header_t));
	current += dsdt->length;
	memcpy(dsdt, &AmlCode, 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);

	/*
	 * We explicitly add these tables later on:
	 */
	printk(BIOS_DEBUG, "ACPI:    * HPET\n");

	hpet = (acpi_hpet_t *) current;
	current += sizeof(acpi_hpet_t);
	ALIGN_CURRENT;
	acpi_create_intel_hpet(hpet);
	acpi_add_table(rsdp, hpet);

	/* If we want to use HPET Timers Linux wants an MADT */
	printk(BIOS_DEBUG, "ACPI:    * MADT\n");

	madt = (acpi_madt_t *) current;
	acpi_create_madt(madt);
	current += madt->header.length;
	ALIGN_CURRENT;
	acpi_add_table(rsdp, madt);

	printk(BIOS_DEBUG, "ACPI:    * MCFG\n");
	mcfg = (acpi_mcfg_t *) current;
	acpi_create_mcfg(mcfg);
	current += mcfg->header.length;
	ALIGN_CURRENT;
	acpi_add_table(rsdp, mcfg);

	/* Update GNVS pointer into CBMEM */
	gnvs = cbmem_find(CBMEM_ID_ACPI_GNVS);
	if (!gnvs) {
		printk(BIOS_DEBUG, "ACPI: Could not find CBMEM GNVS\n");
		gnvs = (global_nvs_t *)current;
	}

	for (i=0; i < dsdt->length; i++) {
		if (*(u32*)(((u32)dsdt) + i) == 0xC0DEBABE) {
			printk(BIOS_DEBUG, "ACPI: Patching up global NVS in "
			       "DSDT at offset 0x%04x -> %p\n", i, gnvs);
			*(u32*)(((u32)dsdt) + i) = (unsigned long)gnvs;
			acpi_save_gnvs((unsigned long)gnvs);
			break;
		}
	}

	/* And fill it */
	acpi_create_gnvs(gnvs);

	/* And tell SMI about it */
	smm_setup_structures(gnvs, NULL, NULL);

	current += sizeof(global_nvs_t);
	ALIGN_CURRENT;

	/* We patched up the DSDT, so we need to recalculate the checksum */
	dsdt->checksum = 0;
	dsdt->checksum = acpi_checksum((void *)dsdt, dsdt->length);

	printk(BIOS_DEBUG, "ACPI:     * DSDT @ %p Length %x\n", dsdt,
		     dsdt->length);

#if CONFIG_HAVE_ACPI_SLIC
	printk(BIOS_DEBUG, "ACPI:     * SLIC\n");
	slic = (acpi_header_t *)current;
	current += acpi_create_slic(current);
	ALIGN_CURRENT;
	acpi_add_table(rsdp, slic);
#endif

	printk(BIOS_DEBUG, "ACPI:     * SSDT\n");
	ssdt = (acpi_header_t *)current;
	acpi_create_ssdt_generator(ssdt, ACPI_TABLE_CREATOR);
	current += ssdt->length;
	acpi_add_table(rsdp, ssdt);
	ALIGN_CURRENT;

	printk(BIOS_DEBUG, "ACPI:     * SSDT2\n");
	ssdt = (acpi_header_t *)current;
	acpi_create_serialio_ssdt(ssdt);
	current += ssdt->length;
	acpi_add_table(rsdp, ssdt);
	ALIGN_CURRENT;

	printk(BIOS_DEBUG, "current = %lx\n", current);
	printk(BIOS_INFO, "ACPI: done.\n");
	return current;
}