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-rw-r--r--arch/openrisc/Kconfig11
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/openrisc/Kconfig b/arch/openrisc/Kconfig
index a0f2e4a323c1d..356dd67a86ea8 100644
--- a/arch/openrisc/Kconfig
+++ b/arch/openrisc/Kconfig
@@ -124,6 +124,17 @@ config OPENRISC_NO_SPR_SR_DSX
Say N here if you know that your OpenRISC processor has
SPR_SR_DSX bit implemented. Say Y if you are unsure.
+config OPENRISC_HAVE_SHADOW_GPRS
+ bool "Support for shadow gpr files" if !SMP
+ default y if SMP
+ help
+ Say Y here if your OpenRISC processor features shadowed
+ register files. They will in such case be used as a
+ scratch reg storage on exception entry.
+
+ On SMP systems, this feature is mandatory.
+ On a unicore system it's safe to say N here if you are unsure.
+
config CMDLINE
string "Default kernel command string"
default ""