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/*
* Copyright (c) 2016, ARM Limited and Contributors. All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
*
* Redistributions of source code must retain the above copyright notice, this
* list of conditions and the following disclaimer.
*
* Redistributions in binary form must reproduce the above copyright notice,
* this list of conditions and the following disclaimer in the documentation
* and/or other materials provided with the distribution.
*
* Neither the name of ARM nor the names of its contributors may be used
* to endorse or promote products derived from this software without specific
* prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
* POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __PMF_H__
#define __PMF_H__
#include <cassert.h>
#include <pmf_helpers.h>
/*
* Constants used for/by PMF services.
*/
#define PMF_ARM_TIF_IMPL_ID (0x41000000)
#define PMF_TID_SHIFT 0
#define PMF_TID_MASK (0xFF << PMF_TID_SHIFT)
#define PMF_SVC_ID_SHIFT 10
#define PMF_SVC_ID_MASK (0x3F << PMF_SVC_ID_SHIFT)
#define PMF_IMPL_ID_SHIFT 24
#define PMF_IMPL_ID_MASK (0xFF << PMF_IMPL_ID_SHIFT)
/*
* Flags passed to PMF_REGISTER_SERVICE
*/
#define PMF_STORE_ENABLE (1 << 0)
#define PMF_DUMP_ENABLE (1 << 1)
/*
* Flags passed to PMF_GET_TIMESTAMP_XXX
* and PMF_CAPTURE_TIMESTAMP
*/
#define PMF_CACHE_MAINT (1 << 0)
#define PMF_NO_CACHE_MAINT 0
/*
* Defines for PMF SMC function ids.
*/
#define PMF_SMC_GET_TIMESTAMP_32 0x82000010
#define PMF_SMC_GET_TIMESTAMP_64 0xC2000010
#define PMF_NUM_SMC_CALLS 2
/*
* The macros below are used to identify
* PMF calls from the SMC function ID.
*/
#define PMF_FID_MASK 0xffe0u
#define PMF_FID_VALUE 0u
#define is_pmf_fid(_fid) (((_fid) & PMF_FID_MASK) == PMF_FID_VALUE)
/* Following are the supported PMF service IDs */
#define PMF_PSCI_STAT_SVC_ID 0
#if ENABLE_PMF
/*
* Convenience macros for capturing time-stamp.
*/
#define PMF_DECLARE_CAPTURE_TIMESTAMP(_name) \
void pmf_capture_timestamp_with_cache_maint_ ## _name( \
unsigned int tid, \
unsigned long long ts); \
void pmf_capture_timestamp_ ## _name( \
unsigned int tid, \
unsigned long long ts);
#define PMF_CAPTURE_TIMESTAMP(_name, _tid, _flags) \
do { \
unsigned long long ts = read_cntpct_el0(); \
if ((_flags) & PMF_CACHE_MAINT) \
pmf_capture_timestamp_with_cache_maint_ ## _name((_tid), ts);\
else \
pmf_capture_timestamp_ ## _name((_tid), ts); \
} while (0)
#define PMF_CAPTURE_AND_GET_TIMESTAMP(_name, _tid, _flags, _tsval) \
do { \
(_tsval) = read_cntpct_el0(); \
CASSERT(sizeof(_tsval) == sizeof(unsigned long long), invalid_tsval_size);\
if ((_flags) & PMF_CACHE_MAINT) \
pmf_capture_timestamp_with_cache_maint_ ## _name((_tid), (_tsval));\
else \
pmf_capture_timestamp_ ## _name((_tid), (_tsval));\
} while (0)
#define PMF_WRITE_TIMESTAMP(_name, _tid, _flags, _wrval) \
do { \
CASSERT(sizeof(_wrval) == sizeof(unsigned long long), invalid_wrval_size);\
if ((_flags) & PMF_CACHE_MAINT) \
pmf_capture_timestamp_with_cache_maint_ ## _name((_tid), (_wrval));\
else \
pmf_capture_timestamp_ ## _name((_tid), (_wrval));\
} while (0)
/*
* Convenience macros for retrieving time-stamp.
*/
#define PMF_DECLARE_GET_TIMESTAMP(_name) \
unsigned long long pmf_get_timestamp_by_index_ ## _name(\
unsigned int tid, \
unsigned int cpuid, \
unsigned int flags); \
unsigned long long pmf_get_timestamp_by_mpidr_ ## _name(\
unsigned int tid, \
u_register_t mpidr, \
unsigned int flags);
#define PMF_GET_TIMESTAMP_BY_MPIDR(_name, _tid, _mpidr, _flags, _tsval)\
_tsval = pmf_get_timestamp_by_mpidr_ ## _name(_tid, _mpidr, _flags)
#define PMF_GET_TIMESTAMP_BY_INDEX(_name, _tid, _cpuid, _flags, _tsval)\
_tsval = pmf_get_timestamp_by_index_ ## _name(_tid, _cpuid, _flags)
/* Convenience macros to register a PMF service.*/
/*
* This macro is used to register a PMF Service. It allocates PMF memory
* and defines default service-specific PMF functions.
*/
#define PMF_REGISTER_SERVICE(_name, _svcid, _totalid, _flags) \
PMF_ALLOCATE_TIMESTAMP_MEMORY(_name, _totalid) \
PMF_DEFINE_CAPTURE_TIMESTAMP(_name, _flags) \
PMF_DEFINE_GET_TIMESTAMP(_name)
/*
* This macro is used to register a PMF service, including an
* SMC interface to that service.
*/
#define PMF_REGISTER_SERVICE_SMC(_name, _svcid, _totalid, _flags)\
PMF_REGISTER_SERVICE(_name, _svcid, _totalid, _flags) \
PMF_DEFINE_SERVICE_DESC(_name, PMF_ARM_TIF_IMPL_ID, \
_svcid, _totalid, NULL, \
pmf_get_timestamp_by_mpidr_ ## _name)
/*
* This macro is used to register a PMF service that has an SMC interface
* but provides its own service-specific PMF functions.
*/
#define PMF_REGISTER_SERVICE_SMC_OWN(_name, _implid, _svcid, _totalid, \
_init, _getts) \
PMF_DEFINE_SERVICE_DESC(_name, _implid, _svcid, _totalid, \
_init, _getts)
#else
#define PMF_REGISTER_SERVICE(_name, _svcid, _totalid, _flags)
#define PMF_REGISTER_SERVICE_SMC(_name, _svcid, _totalid, _flags)
#define PMF_REGISTER_SERVICE_SMC_OWN(_name, _implid, _svcid, _totalid, \
_init, _getts)
#define PMF_DECLARE_CAPTURE_TIMESTAMP(_name)
#define PMF_DECLARE_GET_TIMESTAMP(_name)
#define PMF_CAPTURE_TIMESTAMP(_name, _tid, _flags)
#define PMF_GET_TIMESTAMP_BY_MPIDR(_name, _tid, _mpidr, _flags, _tsval)
#define PMF_GET_TIMESTAMP_BY_INDEX(_name, _tid, _cpuid, _flags, _tsval)
#endif /* ENABLE_PMF */
/*******************************************************************************
* Function & variable prototypes
******************************************************************************/
/* PMF common functions */
int pmf_get_timestamp_smc(unsigned int tid,
u_register_t mpidr,
unsigned int flags,
unsigned long long *ts);
int pmf_setup(void);
uintptr_t pmf_smc_handler(unsigned int smc_fid,
u_register_t x1,
u_register_t x2,
u_register_t x3,
u_register_t x4,
void *cookie,
void *handle,
u_register_t flags);
#endif /* __PMF_H__ */
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