115 lines
2.5 KiB
C
115 lines
2.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* arm_spe_decoder.h: Arm Statistical Profiling Extensions support
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* Copyright (c) 2019-2020, Arm Ltd.
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*/
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#ifndef INCLUDE__ARM_SPE_DECODER_H__
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#define INCLUDE__ARM_SPE_DECODER_H__
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#include <stdbool.h>
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#include <stddef.h>
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#include <stdint.h>
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#include "arm-spe-pkt-decoder.h"
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enum arm_spe_sample_type {
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ARM_SPE_L1D_ACCESS = 1 << 0,
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ARM_SPE_L1D_MISS = 1 << 1,
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ARM_SPE_LLC_ACCESS = 1 << 2,
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ARM_SPE_LLC_MISS = 1 << 3,
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ARM_SPE_TLB_ACCESS = 1 << 4,
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ARM_SPE_TLB_MISS = 1 << 5,
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ARM_SPE_BRANCH_MISS = 1 << 6,
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ARM_SPE_REMOTE_ACCESS = 1 << 7,
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ARM_SPE_SVE_PARTIAL_PRED = 1 << 8,
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ARM_SPE_SVE_EMPTY_PRED = 1 << 9,
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};
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enum arm_spe_op_type {
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/* First level operation type */
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ARM_SPE_OP_OTHER = 1 << 0,
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ARM_SPE_OP_LDST = 1 << 1,
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ARM_SPE_OP_BRANCH_ERET = 1 << 2,
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/* Second level operation type for OTHER */
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ARM_SPE_OP_SVE_OTHER = 1 << 16,
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ARM_SPE_OP_SVE_FP = 1 << 17,
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ARM_SPE_OP_SVE_PRED_OTHER = 1 << 18,
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/* Second level operation type for LDST */
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ARM_SPE_OP_LD = 1 << 16,
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ARM_SPE_OP_ST = 1 << 17,
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ARM_SPE_OP_ATOMIC = 1 << 18,
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ARM_SPE_OP_EXCL = 1 << 19,
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ARM_SPE_OP_AR = 1 << 20,
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ARM_SPE_OP_SIMD_FP = 1 << 21,
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ARM_SPE_OP_GP_REG = 1 << 22,
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ARM_SPE_OP_UNSPEC_REG = 1 << 23,
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ARM_SPE_OP_NV_SYSREG = 1 << 24,
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ARM_SPE_OP_SVE_LDST = 1 << 25,
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ARM_SPE_OP_SVE_PRED_LDST = 1 << 26,
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ARM_SPE_OP_SVE_SG = 1 << 27,
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/* Second level operation type for BRANCH_ERET */
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ARM_SPE_OP_BR_COND = 1 << 16,
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ARM_SPE_OP_BR_INDIRECT = 1 << 17,
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};
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enum arm_spe_neoverse_data_source {
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ARM_SPE_NV_L1D = 0x0,
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ARM_SPE_NV_L2 = 0x8,
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ARM_SPE_NV_PEER_CORE = 0x9,
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ARM_SPE_NV_LOCAL_CLUSTER = 0xa,
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ARM_SPE_NV_SYS_CACHE = 0xb,
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ARM_SPE_NV_PEER_CLUSTER = 0xc,
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ARM_SPE_NV_REMOTE = 0xd,
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ARM_SPE_NV_DRAM = 0xe,
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};
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struct arm_spe_record {
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enum arm_spe_sample_type type;
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int err;
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u32 op;
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u32 latency;
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u64 from_ip;
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u64 to_ip;
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u64 timestamp;
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u64 virt_addr;
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u64 phys_addr;
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u64 context_id;
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u16 source;
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};
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struct arm_spe_insn;
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struct arm_spe_buffer {
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const unsigned char *buf;
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size_t len;
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u64 offset;
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u64 trace_nr;
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};
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struct arm_spe_params {
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int (*get_trace)(struct arm_spe_buffer *buffer, void *data);
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void *data;
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};
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struct arm_spe_decoder {
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int (*get_trace)(struct arm_spe_buffer *buffer, void *data);
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void *data;
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struct arm_spe_record record;
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const unsigned char *buf;
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size_t len;
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struct arm_spe_pkt packet;
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};
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struct arm_spe_decoder *arm_spe_decoder_new(struct arm_spe_params *params);
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void arm_spe_decoder_free(struct arm_spe_decoder *decoder);
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int arm_spe_decode(struct arm_spe_decoder *decoder);
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#endif
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