290598be0e
This patch adds functions to communicate with the openCSD trace decoder, more specifically to access program memory, fetch trace packets and reset the decoder. Co-authored-by: Tor Jeremiassen <tor@ti.com> Signed-off-by: Mathieu Poirier <mathieu.poirier@linaro.org> Acked-by: Jiri Olsa <jolsa@redhat.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Kim Phillips <kim.phillips@arm.com> Cc: Mike Leach <mike.leach@arm.com> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Suzuki Poulouse <suzuki.poulose@arm.com> Cc: linux-arm-kernel@lists.infradead.org Link: http://lkml.kernel.org/r/1516211539-5166-7-git-send-email-mathieu.poirier@linaro.org Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
106 lines
2.1 KiB
C
106 lines
2.1 KiB
C
/*
|
|
* 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_RANGE = 1 << 0,
|
|
};
|
|
|
|
struct cs_etm_packet {
|
|
enum cs_etm_sample_type sample_type;
|
|
u64 start_addr;
|
|
u64 end_addr;
|
|
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__ */
|