| // 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> |
| */ |
| |
| #include <linux/err.h> |
| #include <linux/list.h> |
| #include <stdlib.h> |
| #include <opencsd/c_api/opencsd_c_api.h> |
| #include <opencsd/etmv4/trc_pkt_types_etmv4.h> |
| #include <opencsd/ocsd_if_types.h> |
| |
| #include "cs-etm.h" |
| #include "cs-etm-decoder.h" |
| #include "intlist.h" |
| #include "util.h" |
| |
| #define MAX_BUFFER 1024 |
| |
| /* use raw logging */ |
| #ifdef CS_DEBUG_RAW |
| #define CS_LOG_RAW_FRAMES |
| #ifdef CS_RAW_PACKED |
| #define CS_RAW_DEBUG_FLAGS (OCSD_DFRMTR_UNPACKED_RAW_OUT | \ |
| OCSD_DFRMTR_PACKED_RAW_OUT) |
| #else |
| #define CS_RAW_DEBUG_FLAGS (OCSD_DFRMTR_UNPACKED_RAW_OUT) |
| #endif |
| #endif |
| |
| #define CS_ETM_INVAL_ADDR 0xdeadbeefdeadbeefUL |
| |
| struct cs_etm_decoder { |
| void *data; |
| void (*packet_printer)(const char *msg); |
| dcd_tree_handle_t dcd_tree; |
| cs_etm_mem_cb_type mem_access; |
| ocsd_datapath_resp_t prev_return; |
| u32 packet_count; |
| u32 head; |
| u32 tail; |
| struct cs_etm_packet packet_buffer[MAX_BUFFER]; |
| }; |
| |
| static u32 |
| cs_etm_decoder__mem_access(const void *context, |
| const ocsd_vaddr_t address, |
| const ocsd_mem_space_acc_t mem_space __maybe_unused, |
| const u32 req_size, |
| u8 *buffer) |
| { |
| struct cs_etm_decoder *decoder = (struct cs_etm_decoder *) context; |
| |
| return decoder->mem_access(decoder->data, |
| address, |
| req_size, |
| buffer); |
| } |
| |
| int cs_etm_decoder__add_mem_access_cb(struct cs_etm_decoder *decoder, |
| u64 start, u64 end, |
| cs_etm_mem_cb_type cb_func) |
| { |
| decoder->mem_access = cb_func; |
| |
| if (ocsd_dt_add_callback_mem_acc(decoder->dcd_tree, start, end, |
| OCSD_MEM_SPACE_ANY, |
| cs_etm_decoder__mem_access, decoder)) |
| return -1; |
| |
| return 0; |
| } |
| |
| int cs_etm_decoder__reset(struct cs_etm_decoder *decoder) |
| { |
| ocsd_datapath_resp_t dp_ret; |
| |
| decoder->prev_return = OCSD_RESP_CONT; |
| |
| dp_ret = ocsd_dt_process_data(decoder->dcd_tree, OCSD_OP_RESET, |
| 0, 0, NULL, NULL); |
| if (OCSD_DATA_RESP_IS_FATAL(dp_ret)) |
| return -1; |
| |
| return 0; |
| } |
| |
| int cs_etm_decoder__get_packet(struct cs_etm_decoder *decoder, |
| struct cs_etm_packet *packet) |
| { |
| if (!decoder || !packet) |
| return -EINVAL; |
| |
| /* Nothing to do, might as well just return */ |
| if (decoder->packet_count == 0) |
| return 0; |
| /* |
| * The queueing process in function cs_etm_decoder__buffer_packet() |
| * increments the tail *before* using it. This is somewhat counter |
| * intuitive but it has the advantage of centralizing tail management |
| * at a single location. Because of that we need to follow the same |
| * heuristic with the head, i.e we increment it before using its |
| * value. Otherwise the first element of the packet queue is not |
| * used. |
| */ |
| decoder->head = (decoder->head + 1) & (MAX_BUFFER - 1); |
| |
| *packet = decoder->packet_buffer[decoder->head]; |
| |
| decoder->packet_count--; |
| |
| return 1; |
| } |
| |
| static int cs_etm_decoder__gen_etmv3_config(struct cs_etm_trace_params *params, |
| ocsd_etmv3_cfg *config) |
| { |
| config->reg_idr = params->etmv3.reg_idr; |
| config->reg_ctrl = params->etmv3.reg_ctrl; |
| config->reg_ccer = params->etmv3.reg_ccer; |
| config->reg_trc_id = params->etmv3.reg_trc_id; |
| config->arch_ver = ARCH_V7; |
| config->core_prof = profile_CortexA; |
| |
| return 0; |
| } |
| |
| static void cs_etm_decoder__gen_etmv4_config(struct cs_etm_trace_params *params, |
| ocsd_etmv4_cfg *config) |
| { |
| config->reg_configr = params->etmv4.reg_configr; |
| config->reg_traceidr = params->etmv4.reg_traceidr; |
| config->reg_idr0 = params->etmv4.reg_idr0; |
| config->reg_idr1 = params->etmv4.reg_idr1; |
| config->reg_idr2 = params->etmv4.reg_idr2; |
| config->reg_idr8 = params->etmv4.reg_idr8; |
| config->reg_idr9 = 0; |
| config->reg_idr10 = 0; |
| config->reg_idr11 = 0; |
| config->reg_idr12 = 0; |
| config->reg_idr13 = 0; |
| config->arch_ver = ARCH_V8; |
| config->core_prof = profile_CortexA; |
| } |
| |
| static void cs_etm_decoder__print_str_cb(const void *p_context, |
| const char *msg, |
| const int str_len) |
| { |
| if (p_context && str_len) |
| ((struct cs_etm_decoder *)p_context)->packet_printer(msg); |
| } |
| |
| static int |
| cs_etm_decoder__init_def_logger_printing(struct cs_etm_decoder_params *d_params, |
| struct cs_etm_decoder *decoder) |
| { |
| int ret = 0; |
| |
| if (d_params->packet_printer == NULL) |
| return -1; |
| |
| decoder->packet_printer = d_params->packet_printer; |
| |
| /* |
| * Set up a library default logger to process any printers |
| * (packet/raw frame) we add later. |
| */ |
| ret = ocsd_def_errlog_init(OCSD_ERR_SEV_ERROR, 1); |
| if (ret != 0) |
| return -1; |
| |
| /* no stdout / err / file output */ |
| ret = ocsd_def_errlog_config_output(C_API_MSGLOGOUT_FLG_NONE, NULL); |
| if (ret != 0) |
| return -1; |
| |
| /* |
| * Set the string CB for the default logger, passes strings to |
| * perf print logger. |
| */ |
| ret = ocsd_def_errlog_set_strprint_cb(decoder->dcd_tree, |
| (void *)decoder, |
| cs_etm_decoder__print_str_cb); |
| if (ret != 0) |
| ret = -1; |
| |
| return 0; |
| } |
| |
| #ifdef CS_LOG_RAW_FRAMES |
| static void |
| cs_etm_decoder__init_raw_frame_logging(struct cs_etm_decoder_params *d_params, |
| struct cs_etm_decoder *decoder) |
| { |
| /* Only log these during a --dump operation */ |
| if (d_params->operation == CS_ETM_OPERATION_PRINT) { |
| /* set up a library default logger to process the |
| * raw frame printer we add later |
| */ |
| ocsd_def_errlog_init(OCSD_ERR_SEV_ERROR, 1); |
| |
| /* no stdout / err / file output */ |
| ocsd_def_errlog_config_output(C_API_MSGLOGOUT_FLG_NONE, NULL); |
| |
| /* set the string CB for the default logger, |
| * passes strings to perf print logger. |
| */ |
| ocsd_def_errlog_set_strprint_cb(decoder->dcd_tree, |
| (void *)decoder, |
| cs_etm_decoder__print_str_cb); |
| |
| /* use the built in library printer for the raw frames */ |
| ocsd_dt_set_raw_frame_printer(decoder->dcd_tree, |
| CS_RAW_DEBUG_FLAGS); |
| } |
| } |
| #else |
| static void |
| cs_etm_decoder__init_raw_frame_logging( |
| struct cs_etm_decoder_params *d_params __maybe_unused, |
| struct cs_etm_decoder *decoder __maybe_unused) |
| { |
| } |
| #endif |
| |
| static int cs_etm_decoder__create_packet_printer(struct cs_etm_decoder *decoder, |
| const char *decoder_name, |
| void *trace_config) |
| { |
| u8 csid; |
| |
| if (ocsd_dt_create_decoder(decoder->dcd_tree, decoder_name, |
| OCSD_CREATE_FLG_PACKET_PROC, |
| trace_config, &csid)) |
| return -1; |
| |
| if (ocsd_dt_set_pkt_protocol_printer(decoder->dcd_tree, csid, 0)) |
| return -1; |
| |
| return 0; |
| } |
| |
| static int |
| cs_etm_decoder__create_etm_packet_printer(struct cs_etm_trace_params *t_params, |
| struct cs_etm_decoder *decoder) |
| { |
| const char *decoder_name; |
| ocsd_etmv3_cfg config_etmv3; |
| ocsd_etmv4_cfg trace_config_etmv4; |
| void *trace_config; |
| |
| switch (t_params->protocol) { |
| case CS_ETM_PROTO_ETMV3: |
| case CS_ETM_PROTO_PTM: |
| cs_etm_decoder__gen_etmv3_config(t_params, &config_etmv3); |
| decoder_name = (t_params->protocol == CS_ETM_PROTO_ETMV3) ? |
| OCSD_BUILTIN_DCD_ETMV3 : |
| OCSD_BUILTIN_DCD_PTM; |
| trace_config = &config_etmv3; |
| break; |
| case CS_ETM_PROTO_ETMV4i: |
| cs_etm_decoder__gen_etmv4_config(t_params, &trace_config_etmv4); |
| decoder_name = OCSD_BUILTIN_DCD_ETMV4I; |
| trace_config = &trace_config_etmv4; |
| break; |
| default: |
| return -1; |
| } |
| |
| return cs_etm_decoder__create_packet_printer(decoder, |
| decoder_name, |
| trace_config); |
| } |
| |
| static void cs_etm_decoder__clear_buffer(struct cs_etm_decoder *decoder) |
| { |
| int i; |
| |
| decoder->head = 0; |
| decoder->tail = 0; |
| decoder->packet_count = 0; |
| for (i = 0; i < MAX_BUFFER; i++) { |
| decoder->packet_buffer[i].isa = CS_ETM_ISA_UNKNOWN; |
| decoder->packet_buffer[i].start_addr = CS_ETM_INVAL_ADDR; |
| decoder->packet_buffer[i].end_addr = CS_ETM_INVAL_ADDR; |
| decoder->packet_buffer[i].instr_count = 0; |
| decoder->packet_buffer[i].last_instr_taken_branch = false; |
| decoder->packet_buffer[i].last_instr_size = 0; |
| decoder->packet_buffer[i].last_instr_type = 0; |
| decoder->packet_buffer[i].last_instr_subtype = 0; |
| decoder->packet_buffer[i].last_instr_cond = 0; |
| decoder->packet_buffer[i].flags = 0; |
| decoder->packet_buffer[i].exception_number = UINT32_MAX; |
| decoder->packet_buffer[i].trace_chan_id = UINT8_MAX; |
| decoder->packet_buffer[i].cpu = INT_MIN; |
| } |
| } |
| |
| static ocsd_datapath_resp_t |
| cs_etm_decoder__buffer_packet(struct cs_etm_decoder *decoder, |
| const u8 trace_chan_id, |
| enum cs_etm_sample_type sample_type) |
| { |
| u32 et = 0; |
| int cpu; |
| |
| if (decoder->packet_count >= MAX_BUFFER - 1) |
| return OCSD_RESP_FATAL_SYS_ERR; |
| |
| if (cs_etm__get_cpu(trace_chan_id, &cpu) < 0) |
| return OCSD_RESP_FATAL_SYS_ERR; |
| |
| et = decoder->tail; |
| et = (et + 1) & (MAX_BUFFER - 1); |
| decoder->tail = et; |
| decoder->packet_count++; |
| |
| decoder->packet_buffer[et].sample_type = sample_type; |
| decoder->packet_buffer[et].isa = CS_ETM_ISA_UNKNOWN; |
| decoder->packet_buffer[et].cpu = cpu; |
| decoder->packet_buffer[et].start_addr = CS_ETM_INVAL_ADDR; |
| decoder->packet_buffer[et].end_addr = CS_ETM_INVAL_ADDR; |
| decoder->packet_buffer[et].instr_count = 0; |
| decoder->packet_buffer[et].last_instr_taken_branch = false; |
| decoder->packet_buffer[et].last_instr_size = 0; |
| decoder->packet_buffer[et].last_instr_type = 0; |
| decoder->packet_buffer[et].last_instr_subtype = 0; |
| decoder->packet_buffer[et].last_instr_cond = 0; |
| decoder->packet_buffer[et].flags = 0; |
| decoder->packet_buffer[et].exception_number = UINT32_MAX; |
| decoder->packet_buffer[et].trace_chan_id = trace_chan_id; |
| |
| if (decoder->packet_count == MAX_BUFFER - 1) |
| return OCSD_RESP_WAIT; |
| |
| return OCSD_RESP_CONT; |
| } |
| |
| static ocsd_datapath_resp_t |
| cs_etm_decoder__buffer_range(struct cs_etm_decoder *decoder, |
| const ocsd_generic_trace_elem *elem, |
| const uint8_t trace_chan_id) |
| { |
| int ret = 0; |
| struct cs_etm_packet *packet; |
| |
| ret = cs_etm_decoder__buffer_packet(decoder, trace_chan_id, |
| CS_ETM_RANGE); |
| if (ret != OCSD_RESP_CONT && ret != OCSD_RESP_WAIT) |
| return ret; |
| |
| packet = &decoder->packet_buffer[decoder->tail]; |
| |
| switch (elem->isa) { |
| case ocsd_isa_aarch64: |
| packet->isa = CS_ETM_ISA_A64; |
| break; |
| case ocsd_isa_arm: |
| packet->isa = CS_ETM_ISA_A32; |
| break; |
| case ocsd_isa_thumb2: |
| packet->isa = CS_ETM_ISA_T32; |
| break; |
| case ocsd_isa_tee: |
| case ocsd_isa_jazelle: |
| case ocsd_isa_custom: |
| case ocsd_isa_unknown: |
| default: |
| packet->isa = CS_ETM_ISA_UNKNOWN; |
| } |
| |
| packet->start_addr = elem->st_addr; |
| packet->end_addr = elem->en_addr; |
| packet->instr_count = elem->num_instr_range; |
| packet->last_instr_type = elem->last_i_type; |
| packet->last_instr_subtype = elem->last_i_subtype; |
| packet->last_instr_cond = elem->last_instr_cond; |
| |
| switch (elem->last_i_type) { |
| case OCSD_INSTR_BR: |
| case OCSD_INSTR_BR_INDIRECT: |
| packet->last_instr_taken_branch = elem->last_instr_exec; |
| break; |
| case OCSD_INSTR_ISB: |
| case OCSD_INSTR_DSB_DMB: |
| case OCSD_INSTR_WFI_WFE: |
| case OCSD_INSTR_OTHER: |
| default: |
| packet->last_instr_taken_branch = false; |
| break; |
| } |
| |
| packet->last_instr_size = elem->last_instr_sz; |
| |
| return ret; |
| } |
| |
| static ocsd_datapath_resp_t |
| cs_etm_decoder__buffer_discontinuity(struct cs_etm_decoder *decoder, |
| const uint8_t trace_chan_id) |
| { |
| return cs_etm_decoder__buffer_packet(decoder, trace_chan_id, |
| CS_ETM_DISCONTINUITY); |
| } |
| |
| static ocsd_datapath_resp_t |
| cs_etm_decoder__buffer_exception(struct cs_etm_decoder *decoder, |
| const ocsd_generic_trace_elem *elem, |
| const uint8_t trace_chan_id) |
| { int ret = 0; |
| struct cs_etm_packet *packet; |
| |
| ret = cs_etm_decoder__buffer_packet(decoder, trace_chan_id, |
| CS_ETM_EXCEPTION); |
| if (ret != OCSD_RESP_CONT && ret != OCSD_RESP_WAIT) |
| return ret; |
| |
| packet = &decoder->packet_buffer[decoder->tail]; |
| packet->exception_number = elem->exception_number; |
| |
| return ret; |
| } |
| |
| static ocsd_datapath_resp_t |
| cs_etm_decoder__buffer_exception_ret(struct cs_etm_decoder *decoder, |
| const uint8_t trace_chan_id) |
| { |
| return cs_etm_decoder__buffer_packet(decoder, trace_chan_id, |
| CS_ETM_EXCEPTION_RET); |
| } |
| |
| static ocsd_datapath_resp_t cs_etm_decoder__gen_trace_elem_printer( |
| const void *context, |
| const ocsd_trc_index_t indx __maybe_unused, |
| const u8 trace_chan_id __maybe_unused, |
| const ocsd_generic_trace_elem *elem) |
| { |
| ocsd_datapath_resp_t resp = OCSD_RESP_CONT; |
| struct cs_etm_decoder *decoder = (struct cs_etm_decoder *) context; |
| |
| switch (elem->elem_type) { |
| case OCSD_GEN_TRC_ELEM_UNKNOWN: |
| break; |
| case OCSD_GEN_TRC_ELEM_EO_TRACE: |
| case OCSD_GEN_TRC_ELEM_NO_SYNC: |
| case OCSD_GEN_TRC_ELEM_TRACE_ON: |
| resp = cs_etm_decoder__buffer_discontinuity(decoder, |
| trace_chan_id); |
| break; |
| case OCSD_GEN_TRC_ELEM_INSTR_RANGE: |
| resp = cs_etm_decoder__buffer_range(decoder, elem, |
| trace_chan_id); |
| break; |
| case OCSD_GEN_TRC_ELEM_EXCEPTION: |
| resp = cs_etm_decoder__buffer_exception(decoder, elem, |
| trace_chan_id); |
| break; |
| case OCSD_GEN_TRC_ELEM_EXCEPTION_RET: |
| resp = cs_etm_decoder__buffer_exception_ret(decoder, |
| trace_chan_id); |
| break; |
| case OCSD_GEN_TRC_ELEM_PE_CONTEXT: |
| case OCSD_GEN_TRC_ELEM_ADDR_NACC: |
| case OCSD_GEN_TRC_ELEM_TIMESTAMP: |
| case OCSD_GEN_TRC_ELEM_CYCLE_COUNT: |
| case OCSD_GEN_TRC_ELEM_ADDR_UNKNOWN: |
| case OCSD_GEN_TRC_ELEM_EVENT: |
| case OCSD_GEN_TRC_ELEM_SWTRACE: |
| case OCSD_GEN_TRC_ELEM_CUSTOM: |
| default: |
| break; |
| } |
| |
| return resp; |
| } |
| |
| static int cs_etm_decoder__create_etm_packet_decoder( |
| struct cs_etm_trace_params *t_params, |
| struct cs_etm_decoder *decoder) |
| { |
| const char *decoder_name; |
| ocsd_etmv3_cfg config_etmv3; |
| ocsd_etmv4_cfg trace_config_etmv4; |
| void *trace_config; |
| u8 csid; |
| |
| switch (t_params->protocol) { |
| case CS_ETM_PROTO_ETMV3: |
| case CS_ETM_PROTO_PTM: |
| cs_etm_decoder__gen_etmv3_config(t_params, &config_etmv3); |
| decoder_name = (t_params->protocol == CS_ETM_PROTO_ETMV3) ? |
| OCSD_BUILTIN_DCD_ETMV3 : |
| OCSD_BUILTIN_DCD_PTM; |
| trace_config = &config_etmv3; |
| break; |
| case CS_ETM_PROTO_ETMV4i: |
| cs_etm_decoder__gen_etmv4_config(t_params, &trace_config_etmv4); |
| decoder_name = OCSD_BUILTIN_DCD_ETMV4I; |
| trace_config = &trace_config_etmv4; |
| break; |
| default: |
| return -1; |
| } |
| |
| if (ocsd_dt_create_decoder(decoder->dcd_tree, |
| decoder_name, |
| OCSD_CREATE_FLG_FULL_DECODER, |
| trace_config, &csid)) |
| return -1; |
| |
| if (ocsd_dt_set_gen_elem_outfn(decoder->dcd_tree, |
| cs_etm_decoder__gen_trace_elem_printer, |
| decoder)) |
| return -1; |
| |
| return 0; |
| } |
| |
| static int |
| cs_etm_decoder__create_etm_decoder(struct cs_etm_decoder_params *d_params, |
| struct cs_etm_trace_params *t_params, |
| struct cs_etm_decoder *decoder) |
| { |
| if (d_params->operation == CS_ETM_OPERATION_PRINT) |
| return cs_etm_decoder__create_etm_packet_printer(t_params, |
| decoder); |
| else if (d_params->operation == CS_ETM_OPERATION_DECODE) |
| return cs_etm_decoder__create_etm_packet_decoder(t_params, |
| decoder); |
| |
| return -1; |
| } |
| |
| 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[]) |
| { |
| struct cs_etm_decoder *decoder; |
| ocsd_dcd_tree_src_t format; |
| u32 flags; |
| int i, ret; |
| |
| if ((!t_params) || (!d_params)) |
| return NULL; |
| |
| decoder = zalloc(sizeof(*decoder)); |
| |
| if (!decoder) |
| return NULL; |
| |
| decoder->data = d_params->data; |
| decoder->prev_return = OCSD_RESP_CONT; |
| cs_etm_decoder__clear_buffer(decoder); |
| format = (d_params->formatted ? OCSD_TRC_SRC_FRAME_FORMATTED : |
| OCSD_TRC_SRC_SINGLE); |
| flags = 0; |
| flags |= (d_params->fsyncs ? OCSD_DFRMTR_HAS_FSYNCS : 0); |
| flags |= (d_params->hsyncs ? OCSD_DFRMTR_HAS_HSYNCS : 0); |
| flags |= (d_params->frame_aligned ? OCSD_DFRMTR_FRAME_MEM_ALIGN : 0); |
| |
| /* |
| * Drivers may add barrier frames when used with perf, set up to |
| * handle this. Barriers const of FSYNC packet repeated 4 times. |
| */ |
| flags |= OCSD_DFRMTR_RESET_ON_4X_FSYNC; |
| |
| /* Create decode tree for the data source */ |
| decoder->dcd_tree = ocsd_create_dcd_tree(format, flags); |
| |
| if (decoder->dcd_tree == 0) |
| goto err_free_decoder; |
| |
| /* init library print logging support */ |
| ret = cs_etm_decoder__init_def_logger_printing(d_params, decoder); |
| if (ret != 0) |
| goto err_free_decoder_tree; |
| |
| /* init raw frame logging if required */ |
| cs_etm_decoder__init_raw_frame_logging(d_params, decoder); |
| |
| for (i = 0; i < num_cpu; i++) { |
| ret = cs_etm_decoder__create_etm_decoder(d_params, |
| &t_params[i], |
| decoder); |
| if (ret != 0) |
| goto err_free_decoder_tree; |
| } |
| |
| return decoder; |
| |
| err_free_decoder_tree: |
| ocsd_destroy_dcd_tree(decoder->dcd_tree); |
| err_free_decoder: |
| free(decoder); |
| return NULL; |
| } |
| |
| int cs_etm_decoder__process_data_block(struct cs_etm_decoder *decoder, |
| u64 indx, const u8 *buf, |
| size_t len, size_t *consumed) |
| { |
| int ret = 0; |
| ocsd_datapath_resp_t cur = OCSD_RESP_CONT; |
| ocsd_datapath_resp_t prev_return = decoder->prev_return; |
| size_t processed = 0; |
| u32 count; |
| |
| while (processed < len) { |
| if (OCSD_DATA_RESP_IS_WAIT(prev_return)) { |
| cur = ocsd_dt_process_data(decoder->dcd_tree, |
| OCSD_OP_FLUSH, |
| 0, |
| 0, |
| NULL, |
| NULL); |
| } else if (OCSD_DATA_RESP_IS_CONT(prev_return)) { |
| cur = ocsd_dt_process_data(decoder->dcd_tree, |
| OCSD_OP_DATA, |
| indx + processed, |
| len - processed, |
| &buf[processed], |
| &count); |
| processed += count; |
| } else { |
| ret = -EINVAL; |
| break; |
| } |
| |
| /* |
| * Return to the input code if the packet buffer is full. |
| * Flushing will get done once the packet buffer has been |
| * processed. |
| */ |
| if (OCSD_DATA_RESP_IS_WAIT(cur)) |
| break; |
| |
| prev_return = cur; |
| } |
| |
| decoder->prev_return = cur; |
| *consumed = processed; |
| |
| return ret; |
| } |
| |
| void cs_etm_decoder__free(struct cs_etm_decoder *decoder) |
| { |
| if (!decoder) |
| return; |
| |
| ocsd_destroy_dcd_tree(decoder->dcd_tree); |
| decoder->dcd_tree = NULL; |
| free(decoder); |
| } |