From 32aee8415dac5ef71d53cacc28e25a8d312cc47b Mon Sep 17 00:00:00 2001
From: Roberto Vargas <roberto.vargas@arm.com>
Date: Mon, 13 Nov 2017 13:41:58 +0000
Subject: scmi: Optimize bakery locks when HW_ASSISTED_COHERENCY is enabled

When HW_ASSISTED_COHERENCY is enabled we can use spinlocks
instead of using the more complex and slower bakery algorithm.

Change-Id: I9d791a70050d599241169b9160a67e57d5506564
Signed-off-by: Roberto Vargas <roberto.vargas@arm.com>
---
 include/plat/arm/common/plat_arm.h | 9 +++++++++
 1 file changed, 9 insertions(+)

(limited to 'include')

diff --git a/include/plat/arm/common/plat_arm.h b/include/plat/arm/common/plat_arm.h
index d543894d7..848f4eea8 100644
--- a/include/plat/arm/common/plat_arm.h
+++ b/include/plat/arm/common/plat_arm.h
@@ -11,6 +11,7 @@
 #include <cassert.h>
 #include <cpu_data.h>
 #include <stdint.h>
+#include <spinlock.h>
 #include <tzc_common.h>
 #include <utils_def.h>
 
@@ -80,6 +81,14 @@ void arm_setup_romlib(void);
  */
 #define ARM_INSTANTIATE_LOCK	static DEFINE_BAKERY_LOCK(arm_lock)
 #define ARM_LOCK_GET_INSTANCE	(&arm_lock)
+
+#if !HW_ASSISTED_COHERENCY
+#define ARM_SCMI_INSTANTIATE_LOCK	DEFINE_BAKERY_LOCK(arm_scmi_lock)
+#else
+#define ARM_SCMI_INSTANTIATE_LOCK	spinlock_t arm_scmi_lock
+#endif
+#define ARM_SCMI_LOCK_GET_INSTANCE	(&arm_scmi_lock)
+
 /*
  * These are wrapper macros to the Coherent Memory Bakery Lock API.
  */
-- 
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