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-rw-r--r--arch/xtensa/kernel/entry.S11
1 files changed, 11 insertions, 0 deletions
diff --git a/arch/xtensa/kernel/entry.S b/arch/xtensa/kernel/entry.S
index 98515c24d9b2..703cf6205efe 100644
--- a/arch/xtensa/kernel/entry.S
+++ b/arch/xtensa/kernel/entry.S
@@ -374,6 +374,11 @@ common_exception:
s32i a2, a1, PT_LCOUNT
#endif
+#if XCHAL_HAVE_EXCLUSIVE
+ /* Clear exclusive access monitor set by interrupted code */
+ clrex
+#endif
+
/* It is now save to restore the EXC_TABLE_FIXUP variable. */
rsr a2, exccause
@@ -2020,6 +2025,12 @@ ENTRY(_switch_to)
s32i a3, a4, THREAD_CPENABLE
#endif
+#if XCHAL_HAVE_EXCLUSIVE
+ l32i a3, a5, THREAD_ATOMCTL8
+ getex a3
+ s32i a3, a4, THREAD_ATOMCTL8
+#endif
+
/* Flush register file. */
spill_registers_kernel