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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_HELPERS_H__
#define __PMF_HELPERS_H__
#include <arch_helpers.h>
#include <assert.h>
#include <bl_common.h>
#include <platform.h>
#include <pmf.h>
#include <stdint.h>
#include <stddef.h>
/*
* Prototype for PMF service functions.
*/
typedef int (*pmf_svc_init_t)(void);
typedef unsigned long long (*pmf_svc_get_ts_t)(unsigned int tid,
u_register_t mpidr,
unsigned int flags);
/*
* This is the definition of PMF service desc.
*/
typedef struct pmf_svc_desc {
/* Structure version information */
param_header_t h;
/* Name of the PMF service */
const char *name;
/* PMF service config: Implementer id, Service id and total id*/
unsigned int svc_config;
/* PMF service initialization handler */
pmf_svc_init_t init;
/* PMF service time-stamp retrieval handler */
pmf_svc_get_ts_t get_ts;
} pmf_svc_desc_t;
/*
* Convenience macro to allocate memory for a PMF service.
*/
#define PMF_ALLOCATE_TIMESTAMP_MEMORY(_name, _total_id) \
unsigned long long pmf_ts_mem_ ## _name[_total_id] \
__aligned(CACHE_WRITEBACK_GRANULE) \
__section("pmf_timestamp_array") \
__used;
/*
* Convenience macro to validate tid index for the given TS array.
*/
#define PMF_VALIDATE_TID(_name, _tid) \
assert((_tid & PMF_TID_MASK) < (ARRAY_SIZE(pmf_ts_mem_ ## _name)))
/*
* Convenience macros for capturing time-stamp.
*/
#define PMF_DEFINE_CAPTURE_TIMESTAMP(_name, _flags) \
void pmf_capture_timestamp_ ## _name( \
unsigned int tid, \
unsigned long long ts) \
{ \
CASSERT(_flags, select_proper_config); \
PMF_VALIDATE_TID(_name, tid); \
uintptr_t base_addr = (uintptr_t) pmf_ts_mem_ ## _name; \
if ((_flags) & PMF_STORE_ENABLE) \
__pmf_store_timestamp(base_addr, tid, ts); \
if ((_flags) & PMF_DUMP_ENABLE) \
__pmf_dump_timestamp(tid, ts); \
} \
void pmf_capture_timestamp_with_cache_maint_ ## _name( \
unsigned int tid, \
unsigned long long ts) \
{ \
CASSERT(_flags, select_proper_config); \
PMF_VALIDATE_TID(_name, tid); \
uintptr_t base_addr = (uintptr_t) pmf_ts_mem_ ## _name; \
if ((_flags) & PMF_STORE_ENABLE) \
__pmf_store_timestamp_with_cache_maint(base_addr, tid, ts);\
if ((_flags) & PMF_DUMP_ENABLE) \
__pmf_dump_timestamp(tid, ts); \
}
/*
* Convenience macros for retrieving time-stamp.
*/
#define PMF_DEFINE_GET_TIMESTAMP(_name) \
unsigned long long pmf_get_timestamp_by_index_ ## _name( \
unsigned int tid, unsigned int cpuid, unsigned int flags)\
{ \
PMF_VALIDATE_TID(_name, tid); \
uintptr_t base_addr = (uintptr_t) pmf_ts_mem_ ## _name; \
return __pmf_get_timestamp(base_addr, tid, cpuid, flags);\
} \
unsigned long long pmf_get_timestamp_by_mpidr_ ## _name( \
unsigned int tid, u_register_t mpidr, unsigned int flags)\
{ \
PMF_VALIDATE_TID(_name, tid); \
uintptr_t base_addr = (uintptr_t) pmf_ts_mem_ ## _name; \
return __pmf_get_timestamp(base_addr, tid, \
plat_core_pos_by_mpidr(mpidr), flags); \
}
/*
* Convenience macro to register a PMF service.
* This is needed for services that require SMC handling.
*/
#define PMF_DEFINE_SERVICE_DESC(_name, _implid, _svcid, _totalid, \
_init, _getts_by_mpidr) \
static const pmf_svc_desc_t __pmf_desc_ ## _name \
__section("pmf_svc_descs") __used = { \
.h.type = PARAM_EP, \
.h.version = VERSION_1, \
.h.size = sizeof(pmf_svc_desc_t), \
.h.attr = 0, \
.name = #_name, \
.svc_config = ((((_implid) << PMF_IMPL_ID_SHIFT) & \
PMF_IMPL_ID_MASK) | \
(((_svcid) << PMF_SVC_ID_SHIFT) & \
PMF_SVC_ID_MASK) | \
(((_totalid) << PMF_TID_SHIFT) & \
PMF_TID_MASK)), \
.init = _init, \
.get_ts = _getts_by_mpidr \
};
/* PMF internal functions */
void __pmf_dump_timestamp(unsigned int tid, unsigned long long ts);
void __pmf_store_timestamp(uintptr_t base_addr,
unsigned int tid,
unsigned long long ts);
void __pmf_store_timestamp_with_cache_maint(uintptr_t base_addr,
unsigned int tid,
unsigned long long ts);
unsigned long long __pmf_get_timestamp(uintptr_t base_addr,
unsigned int tid,
unsigned int cpuid,
unsigned int flags);
#endif /* __PMF_HELPERS_H__ */
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