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authorOlof Johansson <olof@lixom.net>2015-01-18 16:45:21 -0800
committerOlof Johansson <olof@lixom.net>2015-01-18 16:46:31 -0800
commitf2c3c67f008f18f22a5fc68c0c279a6a59705042 (patch)
tree36f6255bccc425e78d5ce937481c144c30be15ff /arch/arm
parent966903a98fd80ae5f5c4a7ca121d36ea0ba23143 (diff)
downloadlinux-f2c3c67f008f18f22a5fc68c0c279a6a59705042.tar.gz
Merge tag 'mvebu-fixes-3.19-3' of git://git.infradead.org/linux-mvebu into fixes
Merge " mvebu fixes for 3.19-rc (part #3)" from Andrew Lunn: mvebu: completely disable hardware I/O coherency * tag 'mvebu-fixes-3.19-3' of git://git.infradead.org/linux-mvebu: ARM: mvebu: completely disable hardware I/O coherency Signed-off-by: Olof Johansson <olof@lixom.net>
Diffstat (limited to 'arch/arm')
-rw-r--r--arch/arm/mach-mvebu/coherency.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/arm/mach-mvebu/coherency.c b/arch/arm/mach-mvebu/coherency.c
index 3585cb394e9..caa21e9b8cd 100644
--- a/arch/arm/mach-mvebu/coherency.c
+++ b/arch/arm/mach-mvebu/coherency.c
@@ -246,9 +246,14 @@ static int coherency_type(void)
return type;
}
+/*
+ * As a precaution, we currently completely disable hardware I/O
+ * coherency, until enough testing is done with automatic I/O
+ * synchronization barriers to validate that it is a proper solution.
+ */
int coherency_available(void)
{
- return coherency_type() != COHERENCY_FABRIC_TYPE_NONE;
+ return false;
}
int __init coherency_init(void)