208 lines
6.8 KiB
C
208 lines
6.8 KiB
C
/*
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* Copyright (c) 2013-2014, ARM Limited and Contributors. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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*
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* Neither the name of ARM nor the names of its contributors may be used
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* to endorse or promote products derived from this software without specific
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* prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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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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/*
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* Function identifiers to handle FIQs through the synchronous handling model.
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* If the TSP was previously interrupted then control has to be returned to
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* the TSPD after handling the interrupt else execution can remain in the TSP.
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*/
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#define TSP_HANDLED_S_EL1_FIQ 0xf2000006
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#define TSP_EL3_FIQ 0xf2000007
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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 standard) 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_FIQ_AND_RETURN 0x2004
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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 standard and fast SMC calls
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*/
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#define TSP_STD_FID(fid) ((fid) | 0x72000000 | (0 << 31))
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#define TSP_FAST_FID(fid) ((fid) | 0x72000000 | (1 << 31))
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/* SMC function ID to request a previously preempted std smc */
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#define TSP_FID_RESUME TSP_STD_FID(0x3000)
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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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* 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 0x4
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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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/* Definitions to help the assembler access the SMC/ERET args structure */
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#define TSP_ARGS_SIZE 0x40
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#define TSP_ARG0 0x0
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#define TSP_ARG1 0x8
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#define TSP_ARG2 0x10
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#define TSP_ARG3 0x18
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#define TSP_ARG4 0x20
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#define TSP_ARG5 0x28
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#define TSP_ARG6 0x30
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#define TSP_ARG7 0x38
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#define TSP_ARGS_END 0x40
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#ifndef __ASSEMBLY__
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#include <cassert.h>
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#include <platform_def.h> /* For CACHE_WRITEBACK_GRANULE */
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#include <spinlock.h>
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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 std_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 fiq_entry;
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} tsp_vectors_t;
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typedef struct work_statistics {
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uint32_t fiq_count; /* Number of FIQs on this cpu */
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uint32_t irq_count; /* Number of IRQs on this cpu */
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uint32_t sync_fiq_count; /* Number of sync. fiqs on this cpu */
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uint32_t sync_fiq_ret_count; /* Number of fiq returns on this cpu */
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uint32_t smc_count; /* Number of returns on this cpu */
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uint32_t eret_count; /* Number of entries on this cpu */
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uint32_t cpu_on_count; /* Number of cpu on requests */
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uint32_t cpu_off_count; /* Number of cpu off requests */
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uint32_t cpu_suspend_count; /* Number of cpu suspend requests */
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uint32_t cpu_resume_count; /* Number of cpu resume requests */
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} __aligned(CACHE_WRITEBACK_GRANULE) work_statistics_t;
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typedef struct tsp_args {
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uint64_t _regs[TSP_ARGS_END >> 3];
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} __aligned(CACHE_WRITEBACK_GRANULE) tsp_args_t;
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/* Macros to access members of the above structure using their offsets */
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#define read_sp_arg(args, offset) ((args)->_regs[offset >> 3])
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#define write_sp_arg(args, offset, val) (((args)->_regs[offset >> 3]) \
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= val)
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/*
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* Ensure that the assembler's view of the size of the tsp_args is the
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* same as the compilers
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*/
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CASSERT(TSP_ARGS_SIZE == sizeof(tsp_args_t), assert_sp_args_size_mismatch);
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void tsp_get_magic(uint64_t args[4]);
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tsp_args_t *tsp_cpu_resume_main(uint64_t arg0,
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uint64_t arg1,
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uint64_t arg2,
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uint64_t arg3,
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uint64_t arg4,
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uint64_t arg5,
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uint64_t arg6,
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uint64_t arg7);
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tsp_args_t *tsp_cpu_suspend_main(uint64_t arg0,
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uint64_t arg1,
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uint64_t arg2,
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uint64_t arg3,
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uint64_t arg4,
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uint64_t arg5,
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uint64_t arg6,
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uint64_t arg7);
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tsp_args_t *tsp_cpu_on_main(void);
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tsp_args_t *tsp_cpu_off_main(uint64_t arg0,
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uint64_t arg1,
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uint64_t arg2,
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uint64_t arg3,
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uint64_t arg4,
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uint64_t arg5,
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uint64_t arg6,
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uint64_t arg7);
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/* Generic Timer functions */
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void tsp_generic_timer_start(void);
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void tsp_generic_timer_handler(void);
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void tsp_generic_timer_stop(void);
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void tsp_generic_timer_save(void);
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void tsp_generic_timer_restore(void);
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/* FIQ management functions */
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void tsp_update_sync_fiq_stats(uint32_t type, uint64_t elr_el3);
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/* Data structure to keep track of TSP statistics */
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extern spinlock_t console_lock;
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extern work_statistics_t tsp_stats[PLATFORM_CORE_COUNT];
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/* Vector table of jumps */
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extern tsp_vectors_t tsp_vector_table;
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#endif /* __ASSEMBLY__ */
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#endif /* __BL2_H__ */
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