Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 213 insertions, 0 deletions

diff --git a/drivers/acpi/numa.c b/drivers/acpi/numa.c
new file mode 100644
index 000000000000..a82834b32752
--- /dev/null
+++ b/drivers/acpi/numa.c
@@ -0,0 +1,213 @@
+/*
+ *  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/module.h>
+#include <linux/config.h>
+#include <linux/init.h>
+#include <linux/kernel.h>
+#include <linux/types.h>
+#include <linux/errno.h>
+#include <linux/acpi.h>
+#include <acpi/acpi_bus.h>
+#include <acpi/acmacros.h>
+
+#define ACPI_NUMA	0x80000000
+#define _COMPONENT	ACPI_NUMA
+	ACPI_MODULE_NAME ("numa")
+
+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, unsigned int max_entries);
+
+void __init
+acpi_table_print_srat_entry (
+	acpi_table_entry_header	*header)
+{
+
+	ACPI_FUNCTION_NAME ("acpi_table_print_srat_entry");
+
+	if (!header)
+		return;
+
+	switch (header->type) {
+
+	case ACPI_SRAT_PROCESSOR_AFFINITY:
+#ifdef ACPI_DEBUG_OUTPUT
+	{
+		struct acpi_table_processor_affinity *p =
+			(struct acpi_table_processor_affinity*) header;
+		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "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"));
+	}
+#endif /* ACPI_DEBUG_OUTPUT */
+		break;
+
+	case ACPI_SRAT_MEMORY_AFFINITY:
+#ifdef ACPI_DEBUG_OUTPUT
+	{
+		struct acpi_table_memory_affinity *p =
+			(struct acpi_table_memory_affinity*) header;
+		ACPI_DEBUG_PRINT((ACPI_DB_INFO, "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" : ""));
+	}
+#endif /* ACPI_DEBUG_OUTPUT */
+		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;
+
+	acpi_numa_slit_init(slit);
+
+	return 0;
+}
+
+
+static int __init
+acpi_parse_processor_affinity (
+	acpi_table_entry_header *header,
+	const unsigned long end)
+{
+	struct acpi_table_processor_affinity *processor_affinity;
+
+	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,
+	const unsigned long end)
+{
+	struct acpi_table_memory_affinity *memory_affinity;
+
+	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;
+
+	if (!phys_addr || !size)
+		return -EINVAL;
+
+	srat = (struct acpi_table_srat *) __va(phys_addr);
+
+	return 0;
+}
+
+
+int __init
+acpi_table_parse_srat (
+	enum acpi_srat_entry_id	id,
+	acpi_madt_entry_handler	handler,
+	unsigned int max_entries)
+{
+	return acpi_table_parse_madt_family(ACPI_SRAT, sizeof(struct acpi_table_srat),
+					    id, handler, max_entries);
+}
+
+
+int __init
+acpi_numa_init(void)
+{
+	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,
+					       NR_CPUS);
+		result = acpi_table_parse_srat(ACPI_SRAT_MEMORY_AFFINITY,
+					       acpi_parse_memory_affinity,
+					       NR_NODE_MEMBLKS);	// IA64 specific
+	}
+
+	/* SLIT: System Locality Information Table */
+	result = acpi_table_parse(ACPI_SLIT, acpi_parse_slit);
+
+	acpi_numa_arch_fixup();
+	return 0;
+}
+
+int
+acpi_get_pxm(acpi_handle h)
+{
+	unsigned long pxm;
+	acpi_status status;
+	acpi_handle handle;
+	acpi_handle phandle = h;
+
+	do {
+		handle = phandle;
+		status = acpi_evaluate_integer(handle, "_PXM", NULL, &pxm);
+		if (ACPI_SUCCESS(status))
+			return (int)pxm;
+		status = acpi_get_parent(handle, &phandle);
+	} while(ACPI_SUCCESS(status));
+	return -1;
+}
+EXPORT_SYMBOL(acpi_get_pxm);