Fix the CAS spinlock implementation

[project/bcm63xx/atf.git] / Makefile

diff --git a/Makefile b/Makefile
index 32918c385e571f284a9080ab2e15e2dc98d68b0d..18800cb838ca8fdf5a2a0d775047192f4312427d 100644 (file)
--- a/Makefile
+++ b/Makefile
@@ -141,6 +141,15 @@ else
         $(error Unknown BRANCH_PROTECTION value ${BRANCH_PROTECTION})
 endif
 
+# USE_SPINLOCK_CAS requires AArch64 build
+ifeq (${USE_SPINLOCK_CAS},1)
+ifneq (${ARCH},aarch64)
+        $(error USE_SPINLOCK_CAS requires AArch64)
+else
+        $(info USE_SPINLOCK_CAS is an experimental feature)
+endif
+endif
+
 ################################################################################
 # Toolchain
 ################################################################################
@@ -690,6 +699,7 @@ $(eval $(call assert_boolean,WARMBOOT_ENABLE_DCACHE_EARLY))
 $(eval $(call assert_boolean,BL2_AT_EL3))
 $(eval $(call assert_boolean,BL2_IN_XIP_MEM))
 $(eval $(call assert_boolean,BL2_INV_DCACHE))
+$(eval $(call assert_boolean,USE_SPINLOCK_CAS))
 
 $(eval $(call assert_numeric,ARM_ARCH_MAJOR))
 $(eval $(call assert_numeric,ARM_ARCH_MINOR))
@@ -755,6 +765,7 @@ $(eval $(call add_define,WARMBOOT_ENABLE_DCACHE_EARLY))
 $(eval $(call add_define,BL2_AT_EL3))
 $(eval $(call add_define,BL2_IN_XIP_MEM))
 $(eval $(call add_define,BL2_INV_DCACHE))
+$(eval $(call add_define,USE_SPINLOCK_CAS))
 
 ifeq (${SANITIZE_UB},trap)
         $(eval $(call add_define,MONITOR_TRAPS))