Adding upstream version 2.8.0+dfsg.upstream/2.8.0+dfsgupstream

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 42 insertions, 0 deletions

diff --git a/lib/el3_runtime/aarch32/cpu_data.S b/lib/el3_runtime/aarch32/cpu_data.S
new file mode 100644
index 0000000..bdad2c1
--- /dev/null
+++ b/lib/el3_runtime/aarch32/cpu_data.S
@@ -0,0 +1,42 @@
+/*
+ * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <asm_macros.S>
+#include <lib/el3_runtime/cpu_data.h>
+
+	.globl	_cpu_data
+	.globl	_cpu_data_by_index
+
+/* -----------------------------------------------------------------
+ * cpu_data_t *_cpu_data(void)
+ *
+ * Return the cpu_data structure for the current CPU.
+ * -----------------------------------------------------------------
+ */
+func _cpu_data
+	/* r12 is pushed to meet the 8 byte stack alignment requirement */
+	push	{r12, lr}
+	bl	plat_my_core_pos
+	pop	{r12, lr}
+	b	_cpu_data_by_index
+endfunc _cpu_data
+
+/* -----------------------------------------------------------------
+ * cpu_data_t *_cpu_data_by_index(uint32_t cpu_index)
+ *
+ * Return the cpu_data structure for the CPU with given linear index
+ *
+ * This can be called without a valid stack.
+ * clobbers: r0, r1
+ * -----------------------------------------------------------------
+ */
+func _cpu_data_by_index
+	mov_imm	r1, CPU_DATA_SIZE
+	mul	r0, r0, r1
+	ldr	r1, =percpu_data
+	add	r0, r0, r1
+	bx	lr
+endfunc _cpu_data_by_index