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

[Stefan Kristiansson]

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
 	help
 	  Select this if your implementation has a hardware divide instruction
+
+config OPENRISC_HAVE_INST_LWA_SWA
+	bool "Have instruction l.lwa and l.swa"
+	help
+	  Select this if your implementation have l.lwa and l.swa atomic
+	  instructions.
+
 endmenu
 
 
-- 
1.8.3.2

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