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authorRalf Baechle <ralf@linux-mips.org>2007-07-14 13:24:05 +0100
committerRalf Baechle <ralf@linux-mips.org>2007-07-20 18:57:39 +0100
commit17099b1142f6c0359fca60a3464dea8fb30badea (patch)
tree26b9f3955dca84ccab594a76680c2a71e166768a /arch/mips
parented203dadcd1373e80e95b04075e1eefc554a914b (diff)
[MIPS] Make support for weakly ordered LL/SC a config option.
None of weakly ordered processor supported in tree need this but it seems like this could change ... Signed-off-by: Ralf Baechle <ralf@linux-mips.org>
Diffstat (limited to 'arch/mips')
-rw-r--r--arch/mips/Kconfig11
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/mips/Kconfig b/arch/mips/Kconfig
index 5c863bcd561..1e3aeccd732 100644
--- a/arch/mips/Kconfig
+++ b/arch/mips/Kconfig
@@ -1190,8 +1190,19 @@ config SYS_HAS_CPU_RM9000
config SYS_HAS_CPU_SB1
bool
+#
+# CPU may reorder R->R, R->W, W->R, W->W
+# Reordering beyond LL and SC is handled in WEAK_REORDERING_BEYOND_LLSC
+#
config WEAK_ORDERING
bool
+
+#
+# CPU may reorder reads and writes beyond LL/SC
+# CPU may reorder R->LL, R->LL, W->LL, W->LL, R->SC, R->SC, W->SC, W->SC
+#
+config WEAK_REORDERING_BEYOND_LLSC
+ bool
endmenu
#