Refactor Statistical Profiling Extensions implementation
Factor out SPE operations in a separate file. Use the publish
subscribe framework to drain the SPE buffers before entering secure
world. Additionally, enable SPE before entering normal world.
A side effect of this change is that the profiling buffers are now
only drained when a transition from normal world to secure world
happens. Previously they were drained also on return from secure
world, which is unnecessary as SPE is not supported in S-EL1.
Change-Id: I17582c689b4b525770dbb6db098b3a0b5777b70a
Signed-off-by: Dimitris Papastamos <dimitris.papastamos@arm.com>
diff --git a/bl31/bl31.mk b/bl31/bl31.mk
index 336c295..fccdc8a 100644
--- a/bl31/bl31.mk
+++ b/bl31/bl31.mk
@@ -46,6 +46,10 @@
services/std_svc/sdei/sdei_state.c
endif
+ifeq (${ENABLE_SPE_FOR_LOWER_ELS},1)
+BL31_SOURCES += lib/extensions/spe/spe.c
+endif
+
BL31_LINKERFILE := bl31/bl31.ld.S
# Flag used to indicate if Crash reporting via console should be included