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, 160 insertions, 0 deletions

diff --git a/include/drivers/arm/tzc400.h b/include/drivers/arm/tzc400.h
new file mode 100644
index 0000000..765c130
--- /dev/null
+++ b/include/drivers/arm/tzc400.h
@@ -0,0 +1,160 @@
+/*
+ * Copyright (c) 2014-2021, ARM Limited and Contributors. All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef TZC400_H
+#define TZC400_H
+
+#include <drivers/arm/tzc_common.h>
+#include <lib/utils_def.h>
+
+#define BUILD_CONFIG_OFF			U(0x000)
+#define GATE_KEEPER_OFF				U(0x008)
+#define SPECULATION_CTRL_OFF			U(0x00c)
+#define INT_STATUS				U(0x010)
+#define INT_CLEAR				U(0x014)
+
+#define FAIL_ADDRESS_LOW_OFF			U(0x020)
+#define FAIL_ADDRESS_HIGH_OFF			U(0x024)
+#define FAIL_CONTROL_OFF			U(0x028)
+#define FAIL_ID					U(0x02c)
+
+/* ID registers not common across different varieties of TZC */
+#define PID5					U(0xFD4)
+#define PID6					U(0xFD8)
+#define PID7					U(0xFDC)
+
+#define BUILD_CONFIG_NF_SHIFT			24
+#define BUILD_CONFIG_NF_MASK			U(0x3)
+#define BUILD_CONFIG_AW_SHIFT			8
+#define BUILD_CONFIG_AW_MASK			U(0x3f)
+#define BUILD_CONFIG_NR_SHIFT			0
+#define BUILD_CONFIG_NR_MASK			U(0x1f)
+
+/*
+ * Number of gate keepers is implementation defined. But we know the max for
+ * this device is 4. Get implementation details from BUILD_CONFIG.
+ */
+#define GATE_KEEPER_OS_SHIFT			16
+#define GATE_KEEPER_OS_MASK			U(0xf)
+#define GATE_KEEPER_OR_SHIFT			0
+#define GATE_KEEPER_OR_MASK			U(0xf)
+#define GATE_KEEPER_FILTER_MASK			U(0x1)
+
+/* Speculation is enabled by default. */
+#define SPECULATION_CTRL_WRITE_DISABLE		BIT_32(1)
+#define SPECULATION_CTRL_READ_DISABLE		BIT_32(0)
+
+/* Max number of filters allowed is 4. */
+#define INT_STATUS_OVERLAP_SHIFT		16
+#define INT_STATUS_OVERLAP_MASK			U(0xf)
+#define INT_STATUS_OVERRUN_SHIFT		8
+#define INT_STATUS_OVERRUN_MASK			U(0xf)
+#define INT_STATUS_STATUS_SHIFT			0
+#define INT_STATUS_STATUS_MASK			U(0xf)
+
+#define INT_CLEAR_CLEAR_SHIFT			0
+#define INT_CLEAR_CLEAR_MASK			U(0xf)
+
+#define FAIL_CONTROL_DIR_SHIFT			24
+#define FAIL_CONTROL_DIR_READ			U(0)
+#define FAIL_CONTROL_DIR_WRITE			U(1)
+#define FAIL_CONTROL_NS_SHIFT			21
+#define FAIL_CONTROL_NS_SECURE			U(0)
+#define FAIL_CONTROL_NS_NONSECURE		U(1)
+#define FAIL_CONTROL_PRIV_SHIFT			20
+#define FAIL_CONTROL_PRIV_UNPRIV		U(0)
+#define FAIL_CONTROL_PRIV_PRIV			U(1)
+
+/*
+ * FAIL_ID_ID_MASK depends on AID_WIDTH which is platform specific.
+ * Platform should provide the value on initialisation.
+ */
+#define FAIL_ID_VNET_SHIFT			24
+#define FAIL_ID_VNET_MASK			U(0xf)
+#define FAIL_ID_ID_SHIFT			0
+
+#define TZC_400_PERIPHERAL_ID			U(0x460)
+
+/* Filter enable bits in a TZC */
+#define TZC_400_REGION_ATTR_F_EN_MASK		U(0xf)
+#define TZC_400_REGION_ATTR_FILTER_BIT(x)	(U(1) << (x))
+#define TZC_400_REGION_ATTR_FILTER_BIT_ALL	TZC_400_REGION_ATTR_F_EN_MASK
+
+/*
+ * All TZC region configuration registers are placed one after another. It
+ * depicts size of block of registers for programming each region.
+ */
+#define TZC_400_REGION_SIZE			U(0x20)
+#define TZC_400_ACTION_OFF			U(0x4)
+
+#define FILTER_OFFSET				U(0x10)
+
+#ifndef __ASSEMBLER__
+
+#include <cdefs.h>
+#include <stdint.h>
+
+/*******************************************************************************
+ * Function & variable prototypes
+ ******************************************************************************/
+void tzc400_init(uintptr_t base);
+void tzc400_configure_region0(unsigned int sec_attr,
+			   unsigned int ns_device_access);
+void tzc400_configure_region(unsigned int filters,
+			  unsigned int region,
+			  unsigned long long region_base,
+			  unsigned long long region_top,
+			  unsigned int sec_attr,
+			  unsigned int nsaid_permissions);
+void tzc400_update_filters(unsigned int region, unsigned int filters);
+void tzc400_set_action(unsigned int action);
+void tzc400_enable_filters(void);
+void tzc400_disable_filters(void);
+int tzc400_it_handler(void);
+
+static inline void tzc_init(uintptr_t base)
+{
+	tzc400_init(base);
+}
+
+static inline void tzc_configure_region0(
+			unsigned int sec_attr,
+			unsigned int ns_device_access)
+{
+	tzc400_configure_region0(sec_attr, ns_device_access);
+}
+
+static inline void tzc_configure_region(
+			  unsigned int filters,
+			  unsigned int region,
+			  unsigned long long region_base,
+			  unsigned long long region_top,
+			  unsigned int sec_attr,
+			  unsigned int ns_device_access)
+{
+	tzc400_configure_region(filters, region, region_base,
+			region_top, sec_attr, ns_device_access);
+}
+
+static inline void tzc_set_action(unsigned int action)
+{
+	tzc400_set_action(action);
+}
+
+
+static inline void tzc_enable_filters(void)
+{
+	tzc400_enable_filters();
+}
+
+static inline void tzc_disable_filters(void)
+{
+	tzc400_disable_filters();
+}
+
+#endif /* __ASSEMBLER__ */
+
+#endif /* TZC400_H */