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Diffstat (limited to 'include/lib/pmf/pmf.h')
| -rw-r--r-- | include/lib/pmf/pmf.h | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/include/lib/pmf/pmf.h b/include/lib/pmf/pmf.h new file mode 100644 index 00000000..cdff7635 --- /dev/null +++ b/include/lib/pmf/pmf.h @@ -0,0 +1,176 @@ +/* + * Copyright (c) 2016, ARM Limited and Contributors. All rights reserved. + * + * SPDX-License-Identifier: BSD-3-Clause + */ + +#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 0x41 +#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 (0xFFU << 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 +#define PMF_RT_INSTR_SVC_ID 1 + +#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__ */ |