[PATCH 1/6] openrisc: add Kconfig for l.lwa and l.swa atomic instructions

From: Stefan Kristiansson
Date: Wed Jul 23 2014 - 17:20:23 EST

Not all OpenRISC cpus have support for the l.lwa and l.swa,
this adds a config knob to opt them in and out.

Signed-off-by: Stefan Kristiansson <stefan.kristiansson@xxxxxxxxxxxxx>
arch/openrisc/Kconfig | 7 +++++++
1 file changed, 7 insertions(+)

diff --git a/arch/openrisc/Kconfig b/arch/openrisc/Kconfig
index 848bf96..e8065a3 100644
--- a/arch/openrisc/Kconfig
+++ b/arch/openrisc/Kconfig
@@ -103,6 +103,13 @@ config OPENRISC_HAVE_INST_DIV
default y
Select this if your implementation has a hardware divide instruction
+ bool "Have instruction l.lwa and l.swa"
+ help
+ Select this if your implementation have l.lwa and l.swa atomic
+ instructions.


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