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

source/trusted-firmware/trusted-firmware-a-2.8/lib/cpus/aarch64/qemu_max.S

@@ -0,0 +1,81 @@
+/*
+ * Copyright (c) 2014-2021, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+#include <arch.h>
+#include <asm_macros.S>
+#include <cpu_macros.S>
+#include <qemu_max.h>
+
+func qemu_max_core_pwr_dwn
+	/* ---------------------------------------------
+	 * Disable the Data Cache.
+	 * ---------------------------------------------
+	 */
+	mrs	x1, sctlr_el3
+	bic	x1, x1, #SCTLR_C_BIT
+	msr	sctlr_el3, x1
+	isb
+
+	/* ---------------------------------------------
+	 * Flush L1 cache to L2.
+	 * ---------------------------------------------
+	 */
+	mov	x18, lr
+	mov	x0, #DCCISW
+	bl	dcsw_op_level1
+	mov	lr, x18
+	ret
+endfunc qemu_max_core_pwr_dwn
+
+func qemu_max_cluster_pwr_dwn
+	/* ---------------------------------------------
+	 * Disable the Data Cache.
+	 * ---------------------------------------------
+	 */
+	mrs	x1, sctlr_el3
+	bic	x1, x1, #SCTLR_C_BIT
+	msr	sctlr_el3, x1
+	isb
+
+	/* ---------------------------------------------
+	 * Flush all caches to PoC.
+	 * ---------------------------------------------
+	 */
+	mov	x0, #DCCISW
+	b	dcsw_op_all
+endfunc qemu_max_cluster_pwr_dwn
+
+#if REPORT_ERRATA
+/*
+ * Errata printing function for QEMU "max". Must follow AAPCS.
+ */
+func qemu_max_errata_report
+	ret
+endfunc qemu_max_errata_report
+#endif
+
+	/* ---------------------------------------------
+	 * This function provides cpu specific
+	 * register information for crash reporting.
+	 * It needs to return with x6 pointing to
+	 * a list of register names in ascii and
+	 * x8 - x15 having values of registers to be
+	 * reported.
+	 * ---------------------------------------------
+	 */
+.section .rodata.qemu_max_regs, "aS"
+qemu_max_regs:  /* The ascii list of register names to be reported */
+	.asciz	"" /* no registers to report */
+
+func qemu_max_cpu_reg_dump
+	adr	x6, qemu_max_regs
+	ret
+endfunc qemu_max_cpu_reg_dump
+
+
+/* cpu_ops for QEMU MAX */
+declare_cpu_ops qemu_max, QEMU_MAX_MIDR, CPU_NO_RESET_FUNC, \
+	qemu_max_core_pwr_dwn, \
+	qemu_max_cluster_pwr_dwn