/* * SPDX-License-Identifier: GPL-2.0 * * Copyright(C) 2015-2018 Linaro Limited. * * Author: Tor Jeremiassen <tor@ti.com> * Author: Mathieu Poirier <mathieu.poirier@linaro.org> */ #ifndef INCLUDE__CS_ETM_DECODER_H__ #define INCLUDE__CS_ETM_DECODER_H__ #include <linux/types.h> #include <stdio.h> struct cs_etm_decoder; struct cs_etm_buffer { const unsigned char *buf; size_t len; u64 offset; u64 ref_timestamp; }; enum cs_etm_sample_type { CS_ETM_EMPTY = 0, CS_ETM_RANGE = 1 << 0, CS_ETM_TRACE_ON = 1 << 1, }; struct cs_etm_packet { enum cs_etm_sample_type sample_type; u64 start_addr; u64 end_addr; u8 last_instr_taken_branch; u8 exc; u8 exc_ret; int cpu; }; struct cs_etm_queue; typedef u32 (*cs_etm_mem_cb_type)(struct cs_etm_queue *, u64, size_t, u8 *); struct cs_etmv4_trace_params { u32 reg_idr0; u32 reg_idr1; u32 reg_idr2; u32 reg_idr8; u32 reg_configr; u32 reg_traceidr; }; struct cs_etm_trace_params { int protocol; union { struct cs_etmv4_trace_params etmv4; }; }; struct cs_etm_decoder_params { int operation; void (*packet_printer)(const char *msg); cs_etm_mem_cb_type mem_acc_cb; u8 formatted; u8 fsyncs; u8 hsyncs; u8 frame_aligned; void *data; }; /* * The following enums are indexed starting with 1 to align with the * open source coresight trace decoder library. */ enum { CS_ETM_PROTO_ETMV3 = 1, CS_ETM_PROTO_ETMV4i, CS_ETM_PROTO_ETMV4d, }; enum { CS_ETM_OPERATION_PRINT = 1, CS_ETM_OPERATION_DECODE, }; int cs_etm_decoder__process_data_block(struct cs_etm_decoder *decoder, u64 indx, const u8 *buf, size_t len, size_t *consumed); struct cs_etm_decoder * cs_etm_decoder__new(int num_cpu, struct cs_etm_decoder_params *d_params, struct cs_etm_trace_params t_params[]); void cs_etm_decoder__free(struct cs_etm_decoder *decoder); int cs_etm_decoder__add_mem_access_cb(struct cs_etm_decoder *decoder, u64 start, u64 end, cs_etm_mem_cb_type cb_func); int cs_etm_decoder__get_packet(struct cs_etm_decoder *decoder, struct cs_etm_packet *packet); int cs_etm_decoder__reset(struct cs_etm_decoder *decoder); #endif /* INCLUDE__CS_ETM_DECODER_H__ */