GK SDK 源码库: XMIPCLinuxV100R005C00SPC030 (kernel/tools/open_source excluded)

2026-09-06 03:52:57 +08:00
commit b1928b41c0
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+/*
+ * Copyright (c) 2015, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#include <asm_macros.S>
+#include <common/bl_common.h>
+#include <platform_def.h>
+
+	.globl  plat_report_exception
+
+
+	/* ---------------------------------------------
+	 * void plat_report_exception(unsigned int type)
+	 * Function to report an unhandled exception
+	 * with platform-specific means.
+	 * On FVP platform, it updates the LEDs
+	 * to indicate where we are
+	 * ---------------------------------------------
+	 */
+func plat_report_exception
+	mrs	x1, CurrentEl
+	lsr	x1, x1, #MODE_EL_SHIFT
+	lsl	x1, x1, #V2M_SYS_LED_EL_SHIFT
+	lsl	x0, x0, #V2M_SYS_LED_EC_SHIFT
+	mov	x2, #(SECURE << V2M_SYS_LED_SS_SHIFT)
+	orr	x0, x0, x2
+	orr	x0, x0, x1
+	mov	x1, #V2M_SYSREGS_BASE
+	add	x1, x1, #V2M_SYS_LED
+	str	w0, [x1]
+	ret
+endfunc plat_report_exception