/* * Copyright (c) 2014-2021, ARM Limited and Contributors. All rights reserved. * * SPDX-License-Identifier: BSD-3-Clause */ #ifndef TZC400_H #define TZC400_H #include #include #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 #include /******************************************************************************* * 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 */