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/plat/arm/board/fvp/fvp_pm.c b/plat/arm/board/fvp/fvp_pm.c
index 0ab5b82..13bd8f2 100644
--- a/plat/arm/board/fvp/fvp_pm.c
+++ b/plat/arm/board/fvp/fvp_pm.c
@@ -14,6 +14,7 @@
#include <plat_arm.h>
#include <platform.h>
#include <psci.h>
+#include <spe.h>
#include <v2m_def.h>
#include "drivers/pwrc/fvp_pwrc.h"
#include "fvp_def.h"
@@ -57,7 +58,7 @@
* On power down we need to disable statistical profiling extensions
* before exiting coherency.
*/
- arm_disable_spe();
+ spe_disable();
#endif
/* Disable coherency if this cluster is to be turned off */