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/*
* Copyright (c) 2015-2019, ARM Limited and Contributors. All rights reserved.
*
* SPDX-License-Identifier: BSD-3-Clause
*/
#ifndef PLAT_ARM_H
#define PLAT_ARM_H
#include <stdint.h>
#include <drivers/arm/tzc_common.h>
#include <lib/bakery_lock.h>
#include <lib/cassert.h>
#include <lib/el3_runtime/cpu_data.h>
#include <lib/spinlock.h>
#include <lib/utils_def.h>
#include <lib/xlat_tables/xlat_tables_compat.h>
/*******************************************************************************
* Forward declarations
******************************************************************************/
struct meminfo;
struct image_info;
struct bl_params;
typedef struct arm_tzc_regions_info {
unsigned long long base;
unsigned long long end;
unsigned int sec_attr;
unsigned int nsaid_permissions;
} arm_tzc_regions_info_t;
/*******************************************************************************
* Default mapping definition of the TrustZone Controller for ARM standard
* platforms.
* Configure:
* - Region 0 with no access;
* - Region 1 with secure access only;
* - the remaining DRAM regions access from the given Non-Secure masters.
******************************************************************************/
#if ENABLE_SPM && SPM_MM
#define ARM_TZC_REGIONS_DEF \
{ARM_AP_TZC_DRAM1_BASE, ARM_EL3_TZC_DRAM1_END, \
TZC_REGION_S_RDWR, 0}, \
{ARM_NS_DRAM1_BASE, ARM_NS_DRAM1_END, ARM_TZC_NS_DRAM_S_ACCESS, \
PLAT_ARM_TZC_NS_DEV_ACCESS}, \
{ARM_DRAM2_BASE, ARM_DRAM2_END, ARM_TZC_NS_DRAM_S_ACCESS, \
PLAT_ARM_TZC_NS_DEV_ACCESS}, \
{PLAT_SP_IMAGE_NS_BUF_BASE, (PLAT_SP_IMAGE_NS_BUF_BASE + \
PLAT_SP_IMAGE_NS_BUF_SIZE) - 1, TZC_REGION_S_NONE, \
PLAT_ARM_TZC_NS_DEV_ACCESS}
#else
#define ARM_TZC_REGIONS_DEF \
{ARM_AP_TZC_DRAM1_BASE, ARM_EL3_TZC_DRAM1_END, \
TZC_REGION_S_RDWR, 0}, \
{ARM_NS_DRAM1_BASE, ARM_NS_DRAM1_END, ARM_TZC_NS_DRAM_S_ACCESS, \
PLAT_ARM_TZC_NS_DEV_ACCESS}, \
{ARM_DRAM2_BASE, ARM_DRAM2_END, ARM_TZC_NS_DRAM_S_ACCESS, \
PLAT_ARM_TZC_NS_DEV_ACCESS}
#endif
#define ARM_CASSERT_MMAP \
CASSERT((ARRAY_SIZE(plat_arm_mmap) - 1) <= PLAT_ARM_MMAP_ENTRIES, \
assert_plat_arm_mmap_mismatch); \
CASSERT((PLAT_ARM_MMAP_ENTRIES + ARM_BL_REGIONS) \
<= MAX_MMAP_REGIONS, \
assert_max_mmap_regions);
void arm_setup_romlib(void);
#if defined(IMAGE_BL31) || (!defined(__aarch64__) && defined(IMAGE_BL32))
/*
* Use this macro to instantiate lock before it is used in below
* arm_lock_xxx() macros
*/
#define ARM_INSTANTIATE_LOCK static DEFINE_BAKERY_LOCK(arm_lock)
#define ARM_LOCK_GET_INSTANCE (&arm_lock)
#if !HW_ASSISTED_COHERENCY
#define ARM_SCMI_INSTANTIATE_LOCK DEFINE_BAKERY_LOCK(arm_scmi_lock)
#else
#define ARM_SCMI_INSTANTIATE_LOCK spinlock_t arm_scmi_lock
#endif
#define ARM_SCMI_LOCK_GET_INSTANCE (&arm_scmi_lock)
/*
* These are wrapper macros to the Coherent Memory Bakery Lock API.
*/
#define arm_lock_init() bakery_lock_init(&arm_lock)
#define arm_lock_get() bakery_lock_get(&arm_lock)
#define arm_lock_release() bakery_lock_release(&arm_lock)
#else
/*
* Empty macros for all other BL stages other than BL31 and BL32
*/
#define ARM_INSTANTIATE_LOCK static int arm_lock __unused
#define ARM_LOCK_GET_INSTANCE 0
#define arm_lock_init()
#define arm_lock_get()
#define arm_lock_release()
#endif /* defined(IMAGE_BL31) || (!defined(__aarch64__) && defined(IMAGE_BL32)) */
#if ARM_RECOM_STATE_ID_ENC
/*
* Macros used to parse state information from State-ID if it is using the
* recommended encoding for State-ID.
*/
#define ARM_LOCAL_PSTATE_WIDTH 4
#define ARM_LOCAL_PSTATE_MASK ((1 << ARM_LOCAL_PSTATE_WIDTH) - 1)
/* Macros to construct the composite power state */
/* Make composite power state parameter till power level 0 */
#if PSCI_EXTENDED_STATE_ID
#define arm_make_pwrstate_lvl0(lvl0_state, pwr_lvl, type) \
(((lvl0_state) << PSTATE_ID_SHIFT) | ((type) << PSTATE_TYPE_SHIFT))
#else
#define arm_make_pwrstate_lvl0(lvl0_state, pwr_lvl, type) \
(((lvl0_state) << PSTATE_ID_SHIFT) | \
((pwr_lvl) << PSTATE_PWR_LVL_SHIFT) | \
((type) << PSTATE_TYPE_SHIFT))
#endif /* __PSCI_EXTENDED_STATE_ID__ */
/* Make composite power state parameter till power level 1 */
#define arm_make_pwrstate_lvl1(lvl1_state, lvl0_state, pwr_lvl, type) \
(((lvl1_state) << ARM_LOCAL_PSTATE_WIDTH) | \
arm_make_pwrstate_lvl0(lvl0_state, pwr_lvl, type))
/* Make composite power state parameter till power level 2 */
#define arm_make_pwrstate_lvl2(lvl2_state, lvl1_state, lvl0_state, pwr_lvl, type) \
(((lvl2_state) << (ARM_LOCAL_PSTATE_WIDTH * 2)) | \
arm_make_pwrstate_lvl1(lvl1_state, lvl0_state, pwr_lvl, type))
#endif /* __ARM_RECOM_STATE_ID_ENC__ */
/* ARM State switch error codes */
#define STATE_SW_E_PARAM (-2)
#define STATE_SW_E_DENIED (-3)
/* IO storage utility functions */
void arm_io_setup(void);
/* Security utility functions */
void arm_tzc400_setup(const arm_tzc_regions_info_t *tzc_regions);
struct tzc_dmc500_driver_data;
void arm_tzc_dmc500_setup(struct tzc_dmc500_driver_data *plat_driver_data,
const arm_tzc_regions_info_t *tzc_regions);
/* Console utility functions */
void arm_console_boot_init(void);
void arm_console_boot_end(void);
void arm_console_runtime_init(void);
void arm_console_runtime_end(void);
/* Systimer utility function */
void arm_configure_sys_timer(void);
/* PM utility functions */
int arm_validate_power_state(unsigned int power_state,
psci_power_state_t *req_state);
int arm_validate_psci_entrypoint(uintptr_t entrypoint);
int arm_validate_ns_entrypoint(uintptr_t entrypoint);
void arm_system_pwr_domain_save(void);
void arm_system_pwr_domain_resume(void);
int arm_psci_read_mem_protect(int *enabled);
int arm_nor_psci_write_mem_protect(int val);
void arm_nor_psci_do_static_mem_protect(void);
void arm_nor_psci_do_dyn_mem_protect(void);
int arm_psci_mem_protect_chk(uintptr_t base, u_register_t length);
/* Topology utility function */
int arm_check_mpidr(u_register_t mpidr);
/* BL1 utility functions */
void arm_bl1_early_platform_setup(void);
void arm_bl1_platform_setup(void);
void arm_bl1_plat_arch_setup(void);
/* BL2 utility functions */
void arm_bl2_early_platform_setup(uintptr_t tb_fw_config, struct meminfo *mem_layout);
void arm_bl2_platform_setup(void);
void arm_bl2_plat_arch_setup(void);
uint32_t arm_get_spsr_for_bl32_entry(void);
uint32_t arm_get_spsr_for_bl33_entry(void);
int arm_bl2_plat_handle_post_image_load(unsigned int image_id);
int arm_bl2_handle_post_image_load(unsigned int image_id);
struct bl_params *arm_get_next_bl_params(void);
/* BL2 at EL3 functions */
void arm_bl2_el3_early_platform_setup(void);
void arm_bl2_el3_plat_arch_setup(void);
/* BL2U utility functions */
void arm_bl2u_early_platform_setup(struct meminfo *mem_layout,
void *plat_info);
void arm_bl2u_platform_setup(void);
void arm_bl2u_plat_arch_setup(void);
/* BL31 utility functions */
void arm_bl31_early_platform_setup(void *from_bl2, uintptr_t soc_fw_config,
uintptr_t hw_config, void *plat_params_from_bl2);
void arm_bl31_platform_setup(void);
void arm_bl31_plat_runtime_setup(void);
void arm_bl31_plat_arch_setup(void);
/* TSP utility functions */
void arm_tsp_early_platform_setup(void);
/* SP_MIN utility functions */
void arm_sp_min_early_platform_setup(void *from_bl2, uintptr_t tos_fw_config,
uintptr_t hw_config, void *plat_params_from_bl2);
void arm_sp_min_plat_runtime_setup(void);
/* FIP TOC validity check */
int arm_io_is_toc_valid(void);
/* Utility functions for Dynamic Config */
void arm_load_tb_fw_config(void);
void arm_bl2_set_tb_cfg_addr(void *dtb);
void arm_bl2_dyn_cfg_init(void);
void arm_bl1_set_mbedtls_heap(void);
int arm_get_mbedtls_heap(void **heap_addr, size_t *heap_size);
/*
* Free the memory storing initialization code only used during an images boot
* time so it can be reclaimed for runtime data
*/
void arm_free_init_memory(void);
/*
* Mandatory functions required in ARM standard platforms
*/
unsigned int plat_arm_get_cluster_core_count(u_register_t mpidr);
void plat_arm_gic_driver_init(void);
void plat_arm_gic_init(void);
void plat_arm_gic_cpuif_enable(void);
void plat_arm_gic_cpuif_disable(void);
void plat_arm_gic_redistif_on(void);
void plat_arm_gic_redistif_off(void);
void plat_arm_gic_pcpu_init(void);
void plat_arm_gic_save(void);
void plat_arm_gic_resume(void);
void plat_arm_security_setup(void);
void plat_arm_pwrc_setup(void);
void plat_arm_interconnect_init(void);
void plat_arm_interconnect_enter_coherency(void);
void plat_arm_interconnect_exit_coherency(void);
void plat_arm_program_trusted_mailbox(uintptr_t address);
int plat_arm_bl1_fwu_needed(void);
__dead2 void plat_arm_error_handler(int err);
/*
* Optional function in ARM standard platforms
*/
void plat_arm_override_gicr_frames(const uintptr_t *plat_gicr_frames);
#if ARM_PLAT_MT
unsigned int plat_arm_get_cpu_pe_count(u_register_t mpidr);
#endif
/*
* This function is called after loading SCP_BL2 image and it is used to perform
* any platform-specific actions required to handle the SCP firmware.
*/
int plat_arm_bl2_handle_scp_bl2(struct image_info *scp_bl2_image_info);
/*
* Optional functions required in ARM standard platforms
*/
void plat_arm_io_setup(void);
int plat_arm_get_alt_image_source(
unsigned int image_id,
uintptr_t *dev_handle,
uintptr_t *image_spec);
unsigned int plat_arm_calc_core_pos(u_register_t mpidr);
const mmap_region_t *plat_arm_get_mmap(void);
/* Allow platform to override psci_pm_ops during runtime */
const plat_psci_ops_t *plat_arm_psci_override_pm_ops(plat_psci_ops_t *ops);
/* Execution state switch in ARM platforms */
int arm_execution_state_switch(unsigned int smc_fid,
uint32_t pc_hi,
uint32_t pc_lo,
uint32_t cookie_hi,
uint32_t cookie_lo,
void *handle);
/* Optional functions for SP_MIN */
void plat_arm_sp_min_early_platform_setup(u_register_t arg0, u_register_t arg1,
u_register_t arg2, u_register_t arg3);
/* global variables */
extern plat_psci_ops_t plat_arm_psci_pm_ops;
extern const mmap_region_t plat_arm_mmap[];
extern const unsigned int arm_pm_idle_states[];
/* secure watchdog */
void plat_arm_secure_wdt_start(void);
void plat_arm_secure_wdt_stop(void);
#endif /* PLAT_ARM_H */