util/arm-spe-decoder/arm-spe-decoder.c

23 #include "arm-spe-decoder.h"
84 	struct arm_spe_decoder *decoder;
89 	decoder = zalloc(sizeof(struct arm_spe_decoder));
90 	if (!decoder)
93 	decoder->get_trace = params->get_trace;
94 	decoder->data = params->data;
96 	return decoder;
99 void arm_spe_decoder_free(struct arm_spe_decoder *decoder)
101 	free(decoder);
104 static int arm_spe_get_data(struct arm_spe_decoder *decoder)
110 	ret = decoder->get_trace(&buffer, decoder->data);
114 	decoder->buf = buffer.buf;
115 	decoder->len = buffer.len;
117 	if (!decoder->len)
120 	return decoder->len;
123 static int arm_spe_get_next_packet(struct arm_spe_decoder *decoder)
128 		if (!decoder->len) {
129 			ret = arm_spe_get_data(decoder);
136 		ret = arm_spe_get_packet(decoder->buf, decoder->len,
137 					 &decoder->packet);
140 			decoder->buf += 1;
141 			decoder->len -= 1;
145 		decoder->buf += ret;
146 		decoder->len -= ret;
147 	} while (decoder->packet.type == ARM_SPE_PAD);
152 static int arm_spe_read_record(struct arm_spe_decoder *decoder)
158 	memset(&decoder->record, 0x0, sizeof(decoder->record));
159 	decoder->record.context_id = (u64)-1;
162 		err = arm_spe_get_next_packet(decoder);
166 		idx = decoder->packet.index;
167 		payload = decoder->packet.payload;
169 		switch (decoder->packet.type) {
171 			decoder->record.timestamp = payload;
178 				decoder->record.from_ip = ip;
180 				decoder->record.to_ip = ip;
182 				decoder->record.virt_addr = ip;
184 				decoder->record.phys_addr = ip;
186 				decoder->record.prev_br_tgt = ip;
190 				decoder->record.latency = payload;
193 			decoder->record.context_id = payload;
198 				decoder->record.op |= ARM_SPE_OP_LDST;
200 					decoder->record.op |= ARM_SPE_OP_ST;
202 					decoder->record.op |= ARM_SPE_OP_LD;
204 					decoder->record.op |= ARM_SPE_OP_SVE_LDST;
207 				decoder->record.op |= ARM_SPE_OP_OTHER;
209 					decoder->record.op |= ARM_SPE_OP_SVE_OTHER;
212 				decoder->record.op |= ARM_SPE_OP_BRANCH_ERET;
214 					decoder->record.op |= ARM_SPE_OP_BR_COND;
216 					decoder->record.op |= ARM_SPE_OP_BR_INDIRECT;
218 					decoder->record.op |= ARM_SPE_OP_BR_GCS;
220 					decoder->record.op |= ARM_SPE_OP_BR_CR_BL;
222 					decoder->record.op |= ARM_SPE_OP_BR_CR_RET;
224 					decoder->record.op |= ARM_SPE_OP_BR_CR_NON_BL_RET;
233 				decoder->record.type |= ARM_SPE_L1D_MISS;
236 				decoder->record.type |= ARM_SPE_L1D_ACCESS;
239 				decoder->record.type |= ARM_SPE_TLB_MISS;
242 				decoder->record.type |= ARM_SPE_TLB_ACCESS;
245 				decoder->record.type |= ARM_SPE_LLC_MISS;
248 				decoder->record.type |= ARM_SPE_LLC_ACCESS;
251 				decoder->record.type |= ARM_SPE_REMOTE_ACCESS;
254 				decoder->record.type |= ARM_SPE_BRANCH_MISS;
257 				decoder->record.type |= ARM_SPE_BRANCH_NOT_TAKEN;
260 				decoder->record.type |= ARM_SPE_IN_TXN;
263 				decoder->record.type |= ARM_SPE_SVE_PARTIAL_PRED;
266 				decoder->record.type |= ARM_SPE_SVE_EMPTY_PRED;
270 			decoder->record.source = payload;
285 int arm_spe_decode(struct arm_spe_decoder *decoder)
287 	return arm_spe_read_record(decoder);