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authorDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
committerDaniel Baumann <daniel.baumann@progress-linux.org>2024-04-07 18:49:45 +0000
commit2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch)
tree848558de17fb3008cdf4d861b01ac7781903ce39 /arch/x86/mm/numa_32.c
parentInitial commit. (diff)
downloadlinux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz
linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'arch/x86/mm/numa_32.c')
-rw-r--r--arch/x86/mm/numa_32.c59
1 files changed, 59 insertions, 0 deletions
diff --git a/arch/x86/mm/numa_32.c b/arch/x86/mm/numa_32.c
new file mode 100644
index 000000000..104544359
--- /dev/null
+++ b/arch/x86/mm/numa_32.c
@@ -0,0 +1,59 @@
+/*
+ * Written by: Patricia Gaughen <gone@us.ibm.com>, IBM Corporation
+ * August 2002: added remote node KVA remap - Martin J. Bligh
+ *
+ * Copyright (C) 2002, IBM Corp.
+ *
+ * All rights reserved.
+ *
+ * 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, GOOD TITLE or
+ * NON INFRINGEMENT. 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., 675 Mass Ave, Cambridge, MA 02139, USA.
+ */
+
+#include <linux/memblock.h>
+#include <linux/init.h>
+
+#include "numa_internal.h"
+
+extern unsigned long highend_pfn, highstart_pfn;
+
+void __init initmem_init(void)
+{
+ x86_numa_init();
+
+#ifdef CONFIG_HIGHMEM
+ highstart_pfn = highend_pfn = max_pfn;
+ if (max_pfn > max_low_pfn)
+ highstart_pfn = max_low_pfn;
+ printk(KERN_NOTICE "%ldMB HIGHMEM available.\n",
+ pages_to_mb(highend_pfn - highstart_pfn));
+ high_memory = (void *) __va(highstart_pfn * PAGE_SIZE - 1) + 1;
+#else
+ high_memory = (void *) __va(max_low_pfn * PAGE_SIZE - 1) + 1;
+#endif
+ printk(KERN_NOTICE "%ldMB LOWMEM available.\n",
+ pages_to_mb(max_low_pfn));
+ printk(KERN_DEBUG "max_low_pfn = %lx, highstart_pfn = %lx\n",
+ max_low_pfn, highstart_pfn);
+
+ printk(KERN_DEBUG "Low memory ends at vaddr %08lx\n",
+ (ulong) pfn_to_kaddr(max_low_pfn));
+
+ printk(KERN_DEBUG "High memory starts at vaddr %08lx\n",
+ (ulong) pfn_to_kaddr(highstart_pfn));
+
+ __vmalloc_start_set = true;
+ setup_bootmem_allocator();
+}