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authorMuli Ben-Yehuda <muli@il.ibm.com>2006-12-07 02:14:07 +0100
committerAndi Kleen <andi@basil.nowhere.org>2006-12-07 02:14:07 +0100
commitbff6547bb6a4e82c399d74e7fba78b12d2f162ed (patch)
treefaeb4e95d243b0eb5cd6337739e4c14d154b282f /include
parent[PATCH] Calgary: check BBAR ioremap success when ioremapping (diff)
downloadlinux-bff6547bb6a4e82c399d74e7fba78b12d2f162ed.tar.xz
linux-bff6547bb6a4e82c399d74e7fba78b12d2f162ed.zip
[PATCH] Calgary: allow compiling Calgary in but not using it by default
This patch makes it possible to compile Calgary in but not use it by default. In this mode, use 'iommu=calgary' to activate it. Signed-off-by: Muli Ben-Yehuda <muli@il.ibm.com> Signed-off-by: Jon Mason <jdmason@kudzu.us> Signed-off-by: Andi Kleen <ak@suse.de>
Diffstat (limited to 'include')
-rw-r--r--include/asm-x86_64/calgary.h2
1 files changed, 2 insertions, 0 deletions
diff --git a/include/asm-x86_64/calgary.h b/include/asm-x86_64/calgary.h
index 6b93f5a3a5c8..7ee900645719 100644
--- a/include/asm-x86_64/calgary.h
+++ b/include/asm-x86_64/calgary.h
@@ -51,6 +51,8 @@ struct iommu_table {
#define TCE_TABLE_SIZE_4M 6
#define TCE_TABLE_SIZE_8M 7
+extern int use_calgary;
+
#ifdef CONFIG_CALGARY_IOMMU
extern int calgary_iommu_init(void);
extern void detect_calgary(void);