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/* SPDX-License-Identifier: GPL-2.0 */
/*
* arm_spe_decoder.h: Arm Statistical Profiling Extensions support
* Copyright (c) 2019-2020, Arm Ltd.
*/
#ifndef INCLUDE__ARM_SPE_DECODER_H__
#define INCLUDE__ARM_SPE_DECODER_H__
#include <stdbool.h>
#include <stddef.h>
#include <stdint.h>
#include "arm-spe-pkt-decoder.h"
enum arm_spe_sample_type {
ARM_SPE_L1D_ACCESS = 1 << 0,
ARM_SPE_L1D_MISS = 1 << 1,
ARM_SPE_LLC_ACCESS = 1 << 2,
ARM_SPE_LLC_MISS = 1 << 3,
ARM_SPE_TLB_ACCESS = 1 << 4,
ARM_SPE_TLB_MISS = 1 << 5,
ARM_SPE_BRANCH_MISS = 1 << 6,
ARM_SPE_REMOTE_ACCESS = 1 << 7,
ARM_SPE_SVE_PARTIAL_PRED = 1 << 8,
ARM_SPE_SVE_EMPTY_PRED = 1 << 9,
};
enum arm_spe_op_type {
/* First level operation type */
ARM_SPE_OP_OTHER = 1 << 0,
ARM_SPE_OP_LDST = 1 << 1,
ARM_SPE_OP_BRANCH_ERET = 1 << 2,
/* Second level operation type for OTHER */
ARM_SPE_OP_SVE_OTHER = 1 << 16,
ARM_SPE_OP_SVE_FP = 1 << 17,
ARM_SPE_OP_SVE_PRED_OTHER = 1 << 18,
/* Second level operation type for LDST */
ARM_SPE_OP_LD = 1 << 16,
ARM_SPE_OP_ST = 1 << 17,
ARM_SPE_OP_ATOMIC = 1 << 18,
ARM_SPE_OP_EXCL = 1 << 19,
ARM_SPE_OP_AR = 1 << 20,
ARM_SPE_OP_SIMD_FP = 1 << 21,
ARM_SPE_OP_GP_REG = 1 << 22,
ARM_SPE_OP_UNSPEC_REG = 1 << 23,
ARM_SPE_OP_NV_SYSREG = 1 << 24,
ARM_SPE_OP_SVE_LDST = 1 << 25,
ARM_SPE_OP_SVE_PRED_LDST = 1 << 26,
ARM_SPE_OP_SVE_SG = 1 << 27,
/* Second level operation type for BRANCH_ERET */
ARM_SPE_OP_BR_COND = 1 << 16,
ARM_SPE_OP_BR_INDIRECT = 1 << 17,
};
enum arm_spe_common_data_source {
ARM_SPE_COMMON_DS_L1D = 0x0,
ARM_SPE_COMMON_DS_L2 = 0x8,
ARM_SPE_COMMON_DS_PEER_CORE = 0x9,
ARM_SPE_COMMON_DS_LOCAL_CLUSTER = 0xa,
ARM_SPE_COMMON_DS_SYS_CACHE = 0xb,
ARM_SPE_COMMON_DS_PEER_CLUSTER = 0xc,
ARM_SPE_COMMON_DS_REMOTE = 0xd,
ARM_SPE_COMMON_DS_DRAM = 0xe,
};
struct arm_spe_record {
enum arm_spe_sample_type type;
int err;
u32 op;
u32 latency;
u64 from_ip;
u64 to_ip;
u64 timestamp;
u64 virt_addr;
u64 phys_addr;
u64 context_id;
u16 source;
};
struct arm_spe_insn;
struct arm_spe_buffer {
const unsigned char *buf;
size_t len;
u64 offset;
u64 trace_nr;
};
struct arm_spe_params {
int (*get_trace)(struct arm_spe_buffer *buffer, void *data);
void *data;
};
struct arm_spe_decoder {
int (*get_trace)(struct arm_spe_buffer *buffer, void *data);
void *data;
struct arm_spe_record record;
const unsigned char *buf;
size_t len;
struct arm_spe_pkt packet;
};
struct arm_spe_decoder *arm_spe_decoder_new(struct arm_spe_params *params);
void arm_spe_decoder_free(struct arm_spe_decoder *decoder);
int arm_spe_decode(struct arm_spe_decoder *decoder);
#endif
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