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200 lines
6.7 KiB
200 lines
6.7 KiB
/*
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* Copyright (c) 2016, 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 __PMF_H__
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#define __PMF_H__
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#include <cassert.h>
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#include <pmf_helpers.h>
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/*
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* Constants used for/by PMF services.
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*/
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#define PMF_ARM_TIF_IMPL_ID 0x41
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#define PMF_TID_SHIFT 0
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#define PMF_TID_MASK (0xFF << PMF_TID_SHIFT)
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#define PMF_SVC_ID_SHIFT 10
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#define PMF_SVC_ID_MASK (0x3F << PMF_SVC_ID_SHIFT)
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#define PMF_IMPL_ID_SHIFT 24
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#define PMF_IMPL_ID_MASK (0xFFU << PMF_IMPL_ID_SHIFT)
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/*
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* Flags passed to PMF_REGISTER_SERVICE
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*/
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#define PMF_STORE_ENABLE (1 << 0)
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#define PMF_DUMP_ENABLE (1 << 1)
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/*
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* Flags passed to PMF_GET_TIMESTAMP_XXX
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* and PMF_CAPTURE_TIMESTAMP
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*/
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#define PMF_CACHE_MAINT (1 << 0)
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#define PMF_NO_CACHE_MAINT 0
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/*
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* Defines for PMF SMC function ids.
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*/
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#define PMF_SMC_GET_TIMESTAMP_32 0x82000010
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#define PMF_SMC_GET_TIMESTAMP_64 0xC2000010
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#define PMF_NUM_SMC_CALLS 2
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/*
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* The macros below are used to identify
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* PMF calls from the SMC function ID.
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*/
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#define PMF_FID_MASK 0xffe0u
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#define PMF_FID_VALUE 0u
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#define is_pmf_fid(_fid) (((_fid) & PMF_FID_MASK) == PMF_FID_VALUE)
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/* Following are the supported PMF service IDs */
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#define PMF_PSCI_STAT_SVC_ID 0
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#define PMF_RT_INSTR_SVC_ID 1
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#if ENABLE_PMF
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/*
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* Convenience macros for capturing time-stamp.
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*/
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#define PMF_DECLARE_CAPTURE_TIMESTAMP(_name) \
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void pmf_capture_timestamp_with_cache_maint_ ## _name( \
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unsigned int tid, \
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unsigned long long ts); \
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void pmf_capture_timestamp_ ## _name( \
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unsigned int tid, \
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unsigned long long ts);
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#define PMF_CAPTURE_TIMESTAMP(_name, _tid, _flags) \
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do { \
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unsigned long long ts = read_cntpct_el0(); \
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if ((_flags) & PMF_CACHE_MAINT) \
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pmf_capture_timestamp_with_cache_maint_ ## _name((_tid), ts);\
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else \
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pmf_capture_timestamp_ ## _name((_tid), ts); \
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} while (0)
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#define PMF_CAPTURE_AND_GET_TIMESTAMP(_name, _tid, _flags, _tsval) \
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do { \
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(_tsval) = read_cntpct_el0(); \
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CASSERT(sizeof(_tsval) == sizeof(unsigned long long), invalid_tsval_size);\
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if ((_flags) & PMF_CACHE_MAINT) \
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pmf_capture_timestamp_with_cache_maint_ ## _name((_tid), (_tsval));\
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else \
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pmf_capture_timestamp_ ## _name((_tid), (_tsval));\
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} while (0)
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#define PMF_WRITE_TIMESTAMP(_name, _tid, _flags, _wrval) \
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do { \
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CASSERT(sizeof(_wrval) == sizeof(unsigned long long), invalid_wrval_size);\
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if ((_flags) & PMF_CACHE_MAINT) \
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pmf_capture_timestamp_with_cache_maint_ ## _name((_tid), (_wrval));\
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else \
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pmf_capture_timestamp_ ## _name((_tid), (_wrval));\
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} while (0)
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/*
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* Convenience macros for retrieving time-stamp.
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*/
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#define PMF_DECLARE_GET_TIMESTAMP(_name) \
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unsigned long long pmf_get_timestamp_by_index_ ## _name(\
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unsigned int tid, \
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unsigned int cpuid, \
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unsigned int flags); \
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unsigned long long pmf_get_timestamp_by_mpidr_ ## _name(\
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unsigned int tid, \
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u_register_t mpidr, \
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unsigned int flags);
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#define PMF_GET_TIMESTAMP_BY_MPIDR(_name, _tid, _mpidr, _flags, _tsval)\
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_tsval = pmf_get_timestamp_by_mpidr_ ## _name(_tid, _mpidr, _flags)
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#define PMF_GET_TIMESTAMP_BY_INDEX(_name, _tid, _cpuid, _flags, _tsval)\
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_tsval = pmf_get_timestamp_by_index_ ## _name(_tid, _cpuid, _flags)
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/* Convenience macros to register a PMF service.*/
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/*
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* This macro is used to register a PMF Service. It allocates PMF memory
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* and defines default service-specific PMF functions.
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*/
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#define PMF_REGISTER_SERVICE(_name, _svcid, _totalid, _flags) \
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PMF_ALLOCATE_TIMESTAMP_MEMORY(_name, _totalid) \
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PMF_DEFINE_CAPTURE_TIMESTAMP(_name, _flags) \
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PMF_DEFINE_GET_TIMESTAMP(_name)
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/*
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* This macro is used to register a PMF service, including an
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* SMC interface to that service.
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*/
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#define PMF_REGISTER_SERVICE_SMC(_name, _svcid, _totalid, _flags)\
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PMF_REGISTER_SERVICE(_name, _svcid, _totalid, _flags) \
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PMF_DEFINE_SERVICE_DESC(_name, PMF_ARM_TIF_IMPL_ID, \
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_svcid, _totalid, NULL, \
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pmf_get_timestamp_by_mpidr_ ## _name)
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/*
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* This macro is used to register a PMF service that has an SMC interface
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* but provides its own service-specific PMF functions.
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*/
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#define PMF_REGISTER_SERVICE_SMC_OWN(_name, _implid, _svcid, _totalid, \
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_init, _getts) \
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PMF_DEFINE_SERVICE_DESC(_name, _implid, _svcid, _totalid, \
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_init, _getts)
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#else
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#define PMF_REGISTER_SERVICE(_name, _svcid, _totalid, _flags)
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#define PMF_REGISTER_SERVICE_SMC(_name, _svcid, _totalid, _flags)
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#define PMF_REGISTER_SERVICE_SMC_OWN(_name, _implid, _svcid, _totalid, \
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_init, _getts)
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#define PMF_DECLARE_CAPTURE_TIMESTAMP(_name)
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#define PMF_DECLARE_GET_TIMESTAMP(_name)
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#define PMF_CAPTURE_TIMESTAMP(_name, _tid, _flags)
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#define PMF_GET_TIMESTAMP_BY_MPIDR(_name, _tid, _mpidr, _flags, _tsval)
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#define PMF_GET_TIMESTAMP_BY_INDEX(_name, _tid, _cpuid, _flags, _tsval)
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#endif /* ENABLE_PMF */
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/*******************************************************************************
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* Function & variable prototypes
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******************************************************************************/
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/* PMF common functions */
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int pmf_get_timestamp_smc(unsigned int tid,
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u_register_t mpidr,
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unsigned int flags,
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unsigned long long *ts);
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int pmf_setup(void);
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uintptr_t pmf_smc_handler(unsigned int smc_fid,
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u_register_t x1,
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u_register_t x2,
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u_register_t x3,
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u_register_t x4,
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void *cookie,
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void *handle,
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u_register_t flags);
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#endif /* __PMF_H__ */
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