112 lines
3.2 KiB
C
112 lines
3.2 KiB
C
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/*
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* Copyright (c) 2013-2019, ARM Limited and Contributors. All rights reserved.
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*
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* SPDX-License-Identifier: BSD-3-Clause
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*/
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#ifndef TSP_H
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#define TSP_H
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/*
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* SMC function IDs that TSP uses to signal various forms of completions
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* to the secure payload dispatcher.
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*/
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#define TSP_ENTRY_DONE 0xf2000000
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#define TSP_ON_DONE 0xf2000001
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#define TSP_OFF_DONE 0xf2000002
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#define TSP_SUSPEND_DONE 0xf2000003
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#define TSP_RESUME_DONE 0xf2000004
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#define TSP_PREEMPTED 0xf2000005
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#define TSP_ABORT_DONE 0xf2000007
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#define TSP_SYSTEM_OFF_DONE 0xf2000008
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#define TSP_SYSTEM_RESET_DONE 0xf2000009
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/*
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* Function identifiers to handle S-EL1 interrupt through the synchronous
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* handling model. If the TSP was previously interrupted then control has to
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* be returned to the TSPD after handling the interrupt else execution can
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* remain in the TSP.
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*/
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#define TSP_HANDLED_S_EL1_INTR 0xf2000006
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/* SMC function ID that TSP uses to request service from secure monitor */
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#define TSP_GET_ARGS 0xf2001000
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/*
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* Identifiers for various TSP services. Corresponding function IDs (whether
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* fast or yielding) are generated by macros defined below
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*/
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#define TSP_ADD 0x2000
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#define TSP_SUB 0x2001
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#define TSP_MUL 0x2002
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#define TSP_DIV 0x2003
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#define TSP_HANDLE_SEL1_INTR_AND_RETURN 0x2004
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/*
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* Identify a TSP service from function ID filtering the last 16 bits from the
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* SMC function ID
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*/
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#define TSP_BARE_FID(fid) ((fid) & 0xffff)
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/*
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* Generate function IDs for TSP services to be used in SMC calls, by
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* appropriately setting bit 31 to differentiate yielding and fast SMC calls
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*/
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#define TSP_YIELD_FID(fid) ((TSP_BARE_FID(fid) | 0x72000000))
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#define TSP_FAST_FID(fid) ((TSP_BARE_FID(fid) | 0x72000000) | (1u << 31))
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/* SMC function ID to request a previously preempted yielding smc */
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#define TSP_FID_RESUME TSP_YIELD_FID(0x3000)
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/*
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* SMC function ID to request abortion of a previously preempted yielding SMC. A
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* fast SMC is used so that the TSP abort handler does not have to be
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* reentrant.
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*/
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#define TSP_FID_ABORT TSP_FAST_FID(0x3001)
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/*
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* Total number of function IDs implemented for services offered to NS clients.
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* The function IDs are defined above
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*/
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#define TSP_NUM_FID 0x5
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/* TSP implementation version numbers */
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#define TSP_VERSION_MAJOR 0x0 /* Major version */
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#define TSP_VERSION_MINOR 0x1 /* Minor version */
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/*
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* Standard Trusted OS Function IDs that fall under Trusted OS call range
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* according to SMC calling convention
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*/
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#define TOS_CALL_COUNT 0xbf00ff00 /* Number of calls implemented */
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#define TOS_UID 0xbf00ff01 /* Implementation UID */
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/* 0xbf00ff02 is reserved */
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#define TOS_CALL_VERSION 0xbf00ff03 /* Trusted OS Call Version */
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#ifndef __ASSEMBLER__
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#include <stdint.h>
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typedef uint32_t tsp_vector_isn_t;
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typedef struct tsp_vectors {
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tsp_vector_isn_t yield_smc_entry;
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tsp_vector_isn_t fast_smc_entry;
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tsp_vector_isn_t cpu_on_entry;
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tsp_vector_isn_t cpu_off_entry;
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tsp_vector_isn_t cpu_resume_entry;
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tsp_vector_isn_t cpu_suspend_entry;
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tsp_vector_isn_t sel1_intr_entry;
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tsp_vector_isn_t system_off_entry;
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tsp_vector_isn_t system_reset_entry;
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tsp_vector_isn_t abort_yield_smc_entry;
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} tsp_vectors_t;
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void tsp_setup(void);
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#endif /* __ASSEMBLER__ */
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#endif /* TSP_H */
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