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>
---
 plat/mediatek/mt8183/aarch64/plat_helpers.S | 34 +++++++++++++++++++++++++++++
 1 file changed, 34 insertions(+)
 create mode 100644 plat/mediatek/mt8183/aarch64/plat_helpers.S

(limited to 'plat/mediatek/mt8183/aarch64/plat_helpers.S')

diff --git a/plat/mediatek/mt8183/aarch64/plat_helpers.S b/plat/mediatek/mt8183/aarch64/plat_helpers.S
new file mode 100644
index 0000000..5c39633
--- /dev/null
+++ b/plat/mediatek/mt8183/aarch64/plat_helpers.S
@@ -0,0 +1,34 @@
+/*
+ * Copyright (c) 2019, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <arch.h>
+#include <asm_macros.S>
+#include <platform_def.h>
+
+	.globl plat_is_my_cpu_primary
+	.globl plat_my_core_pos
+
+func plat_is_my_cpu_primary
+	mrs x0, mpidr_el1
+	and x0, x0, #(MPIDR_CLUSTER_MASK | MPIDR_CPU_MASK)
+	cmp x0, #PLAT_PRIMARY_CPU
+	cset x0, eq
+	ret
+endfunc plat_is_my_cpu_primary
+
+	/* -----------------------------------------------------
+	 * unsigned int plat_my_core_pos(void);
+	 *
+	 * result: CorePos = CoreId + (ClusterId << 2)
+	 * -----------------------------------------------------
+	 */
+func plat_my_core_pos
+	mrs     x0, mpidr_el1
+	and     x1, x0, #MPIDR_CPU_MASK
+	and     x0, x0, #MPIDR_CLUSTER_MASK
+	add     x0, x1, x0, LSR #6
+	ret
+endfunc plat_my_core_pos
-- 
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