patch-2.4.22 linux-2.4.22/drivers/acpi/numa.c

• Lines: 188
• Date: 2003-08-25 04:44:41.000000000 -0700
• Orig file: linux-2.4.21/drivers/acpi/numa.c
• Orig date: 1969-12-31 16:00:00.000000000 -0800

diff -urN linux-2.4.21/drivers/acpi/numa.c linux-2.4.22/drivers/acpi/numa.c
@@ -0,0 +1,187 @@
+/*
+ *  acpi_numa.c - ACPI NUMA support
+ *
+ *  Copyright (C) 2002 Takayoshi Kochi <t-kochi@bq.jp.nec.com>
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ *  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; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ *
+ * ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
+ *
+ */
+
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/acpi.h>
+
+#define PREFIX			"ACPI: "
+
+extern int __init acpi_table_parse_madt_family (enum acpi_table_id id, unsigned long madt_size, int entry_id, acpi_madt_entry_handler handler);
+
+void __init
+acpi_table_print_srat_entry (
+	acpi_table_entry_header	*header)
+{
+	if (!header)
+		return;
+
+	switch (header->type) {
+
+	case ACPI_SRAT_PROCESSOR_AFFINITY:
+	{
+		struct acpi_table_processor_affinity *p =
+			(struct acpi_table_processor_affinity*) header;
+		printk(KERN_INFO PREFIX "SRAT Processor (id[0x%02x] eid[0x%02x]) in proximity domain %d %s\n",
+		       p->apic_id, p->lsapic_eid, p->proximity_domain,
+		       p->flags.enabled?"enabled":"disabled");
+	}
+		break;
+
+	case ACPI_SRAT_MEMORY_AFFINITY:
+	{
+		struct acpi_table_memory_affinity *p =
+			(struct acpi_table_memory_affinity*) header;
+		printk(KERN_INFO PREFIX "SRAT Memory (0x%08x%08x length 0x%08x%08x type 0x%x) in proximity domain %d %s%s\n",
+		       p->base_addr_hi, p->base_addr_lo, p->length_hi, p->length_lo,
+		       p->memory_type, p->proximity_domain,
+		       p->flags.enabled ? "enabled" : "disabled",
+		       p->flags.hot_pluggable ? " hot-pluggable" : "");
+	}
+		break;
+
+	default:
+		printk(KERN_WARNING PREFIX "Found unsupported SRAT entry (type = 0x%x)\n",
+			header->type);
+		break;
+	}
+}
+
+
+static int __init
+acpi_parse_slit (unsigned long phys_addr, unsigned long size)
+{
+	struct acpi_table_slit	*slit;
+	u32			localities;
+
+	if (!phys_addr || !size)
+		return -EINVAL;
+
+	slit = (struct acpi_table_slit *) __va(phys_addr);
+
+	/* downcast just for %llu vs %lu for i386/ia64  */
+	localities = (u32) slit->localities;
+
+	printk(KERN_INFO PREFIX "SLIT localities %ux%u\n", localities, localities);
+
+	acpi_numa_slit_init(slit);
+
+	return 0;
+}
+
+
+static int __init
+acpi_parse_processor_affinity (acpi_table_entry_header *header)
+{
+	struct acpi_table_processor_affinity *processor_affinity = NULL;
+
+	processor_affinity = (struct acpi_table_processor_affinity*) header;
+	if (!processor_affinity)
+		return -EINVAL;
+
+	acpi_table_print_srat_entry(header);
+
+	/* let architecture-dependent part to do it */
+	acpi_numa_processor_affinity_init(processor_affinity);
+
+	return 0;
+}
+
+
+static int __init
+acpi_parse_memory_affinity (acpi_table_entry_header *header)
+{
+	struct acpi_table_memory_affinity *memory_affinity = NULL;
+
+	memory_affinity = (struct acpi_table_memory_affinity*) header;
+	if (!memory_affinity)
+		return -EINVAL;
+
+	acpi_table_print_srat_entry(header);
+
+	/* let architecture-dependent part to do it */
+	acpi_numa_memory_affinity_init(memory_affinity);
+
+	return 0;
+}
+
+
+static int __init
+acpi_parse_srat (unsigned long phys_addr, unsigned long size)
+{
+	struct acpi_table_srat	*srat = NULL;
+
+	if (!phys_addr || !size)
+		return -EINVAL;
+
+	srat = (struct acpi_table_srat *) __va(phys_addr);
+
+	printk(KERN_INFO PREFIX "SRAT revision %d\n", srat->table_revision);
+
+	return 0;
+}
+
+
+int __init
+acpi_table_parse_srat (
+	enum acpi_srat_entry_id	id,
+	acpi_madt_entry_handler	handler)
+{
+	return acpi_table_parse_madt_family(ACPI_SRAT, sizeof(struct acpi_table_srat),
+					    id, handler);
+}
+
+
+int __init
+acpi_numa_init()
+{
+	int			result;
+
+	/* SRAT: Static Resource Affinity Table */
+	result = acpi_table_parse(ACPI_SRAT, acpi_parse_srat);
+
+	if (result > 0) {
+		result = acpi_table_parse_srat(ACPI_SRAT_PROCESSOR_AFFINITY,
+					       acpi_parse_processor_affinity);
+		result = acpi_table_parse_srat(ACPI_SRAT_MEMORY_AFFINITY,
+					       acpi_parse_memory_affinity);
+	} else {
+		/* FIXME */
+		printk("Warning: acpi_table_parse(ACPI_SRAT) returned %d!\n",result);
+	}
+
+	/* SLIT: System Locality Information Table */
+	result = acpi_table_parse(ACPI_SLIT, acpi_parse_slit);
+	if (result < 1) {
+		/* FIXME */
+		printk("Warning: acpi_table_parse(ACPI_SLIT) returned %d!\n",result);
+	}
+
+	acpi_numa_arch_fixup();
+	return 0;
+}