From 102b0d2daa97dae68d3eed54d8fe37a9cc38a892 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sun, 28 Apr 2024 11:13:47 +0200
Subject: Adding upstream version 2.8.0+dfsg.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 lib/cpus/aarch64/cortex_a75_pubsub.c | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)
 create mode 100644 lib/cpus/aarch64/cortex_a75_pubsub.c

(limited to 'lib/cpus/aarch64/cortex_a75_pubsub.c')

diff --git a/lib/cpus/aarch64/cortex_a75_pubsub.c b/lib/cpus/aarch64/cortex_a75_pubsub.c
new file mode 100644
index 0000000..bd2c697
--- /dev/null
+++ b/lib/cpus/aarch64/cortex_a75_pubsub.c
@@ -0,0 +1,28 @@
+/*
+ * Copyright (c) 2017-2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <cortex_a75.h>
+#include <cpuamu.h>
+#include <lib/el3_runtime/pubsub_events.h>
+
+static void *cortex_a75_context_save(const void *arg)
+{
+	if (midr_match(CORTEX_A75_MIDR) != 0)
+		cpuamu_context_save(CORTEX_A75_AMU_NR_COUNTERS);
+
+	return (void *)0;
+}
+
+static void *cortex_a75_context_restore(const void *arg)
+{
+	if (midr_match(CORTEX_A75_MIDR) != 0)
+		cpuamu_context_restore(CORTEX_A75_AMU_NR_COUNTERS);
+
+	return (void *)0;
+}
+
+SUBSCRIBE_TO_EVENT(psci_suspend_pwrdown_start, cortex_a75_context_save);
+SUBSCRIBE_TO_EVENT(psci_suspend_pwrdown_finish, cortex_a75_context_restore);
-- 
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