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) 2016-2018, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef TZC_COMMON_H
+#define TZC_COMMON_H
+
+#include <lib/utils_def.h>
+
+/*
+ * Offset of core registers from the start of the base of configuration
+ * registers for each region.
+ */
+
+/* ID Registers */
+#define PID0_OFF					U(0xfe0)
+#define PID1_OFF					U(0xfe4)
+#define PID2_OFF					U(0xfe8)
+#define PID3_OFF					U(0xfec)
+#define PID4_OFF					U(0xfd0)
+#define CID0_OFF					U(0xff0)
+#define CID1_OFF					U(0xff4)
+#define CID2_OFF					U(0xff8)
+#define CID3_OFF					U(0xffc)
+
+/*
+ * What type of action is expected when an access violation occurs.
+ * The memory requested is returned as zero. But we can also raise an event to
+ * let the system know it happened.
+ * We can raise an interrupt(INT) and/or cause an exception(ERR).
+ *  TZC_ACTION_NONE    - No interrupt, no Exception
+ *  TZC_ACTION_ERR     - No interrupt, raise exception -> sync external
+ *                       data abort
+ *  TZC_ACTION_INT     - Raise interrupt, no exception
+ *  TZC_ACTION_ERR_INT - Raise interrupt, raise exception -> sync
+ *                       external data abort
+ */
+#define TZC_ACTION_NONE			U(0)
+#define TZC_ACTION_ERR			U(1)
+#define TZC_ACTION_INT			U(2)
+#define TZC_ACTION_ERR_INT		(TZC_ACTION_ERR | TZC_ACTION_INT)
+
+/* Bit positions of TZC_ACTION registers */
+#define TZC_ACTION_RV_SHIFT				0
+#define TZC_ACTION_RV_MASK				U(0x3)
+#define TZC_ACTION_RV_LOWOK				U(0x0)
+#define TZC_ACTION_RV_LOWERR				U(0x1)
+#define TZC_ACTION_RV_HIGHOK				U(0x2)
+#define TZC_ACTION_RV_HIGHERR				U(0x3)
+
+/*
+ * Controls secure access to a region. If not enabled secure access is not
+ * allowed to region.
+ */
+#define TZC_REGION_S_NONE		U(0)
+#define TZC_REGION_S_RD			U(1)
+#define TZC_REGION_S_WR			U(2)
+#define TZC_REGION_S_RDWR		(TZC_REGION_S_RD | TZC_REGION_S_WR)
+
+#define TZC_REGION_ATTR_S_RD_SHIFT			30
+#define TZC_REGION_ATTR_S_WR_SHIFT			31
+#define TZC_REGION_ATTR_F_EN_SHIFT			0
+#define TZC_REGION_ATTR_SEC_SHIFT			30
+#define TZC_REGION_ATTR_S_RD_MASK			U(0x1)
+#define TZC_REGION_ATTR_S_WR_MASK			U(0x1)
+#define TZC_REGION_ATTR_SEC_MASK			U(0x3)
+
+#define TZC_REGION_ACCESS_WR_EN_SHIFT			16
+#define TZC_REGION_ACCESS_RD_EN_SHIFT			0
+#define TZC_REGION_ACCESS_ID_MASK			U(0xf)
+
+/* Macros for allowing Non-Secure access to a region based on NSAID */
+#define TZC_REGION_ACCESS_RD(nsaid)				\
+	((U(1) << ((nsaid) & TZC_REGION_ACCESS_ID_MASK)) <<	\
+	 TZC_REGION_ACCESS_RD_EN_SHIFT)
+#define TZC_REGION_ACCESS_WR(nsaid)				\
+	((U(1) << ((nsaid) & TZC_REGION_ACCESS_ID_MASK)) <<	\
+	 TZC_REGION_ACCESS_WR_EN_SHIFT)
+#define TZC_REGION_ACCESS_RDWR(nsaid)				\
+	(TZC_REGION_ACCESS_RD(nsaid) |				\
+	TZC_REGION_ACCESS_WR(nsaid))
+
+/* Returns offset of registers to program for a given region no */
+#define TZC_REGION_OFFSET(region_size, region_no)	\
+				((region_size) * (region_no))
+
+#endif /* TZC_COMMON_H */