@@ -237,6 +237,53 @@ static int sbefifo_pib_write(struct pib *pib, uint64_t addr, uint64_t val)
return sbefifo_scom_put(sctx, addr, val);
}
+static int sbefifo_pib_thread_op(struct pib *pib, uint32_t oper)
+{
+ struct sbefifo *sbefifo = target_to_sbefifo(pib->target.parent);
+ struct sbefifo_context *sctx = sbefifo->get_sbefifo_context(sbefifo);
+ uint32_t core_id, thread_id;
+ uint8_t mode = 0;
+
+ /*
+ * core_id = 0xff (all SMT4 cores)
+ * thread_id = 0xf (all 4 threads in the SMT4 core)
+ */
+ core_id = 0xff;
+ thread_id = 0xf;
+
+ /* Enforce special-wakeup for thread stop and sreset */
+ if ((oper & 0xf) == SBEFIFO_INSN_OP_STOP ||
+ (oper & 0xf) == SBEFIFO_INSN_OP_SRESET)
+ mode = 0x2;
+
+ return sbefifo_control_insn(sctx, core_id, thread_id, oper, mode);
+}
+
+static int sbefifo_pib_thread_start(struct pib *pib)
+{
+ return sbefifo_pib_thread_op(pib, SBEFIFO_INSN_OP_START);
+}
+
+static int sbefifo_pib_thread_stop(struct pib *pib)
+{
+ return sbefifo_pib_thread_op(pib, SBEFIFO_INSN_OP_STOP);
+}
+
+static int sbefifo_pib_thread_step(struct pib *pib, int count)
+{
+ int i, rc = 0;
+
+ for (i = 0; i < count; i++)
+ rc |= sbefifo_pib_thread_op(pib, SBEFIFO_INSN_OP_STEP);
+
+ return rc;
+}
+
+static int sbefifo_pib_thread_sreset(struct pib *pib)
+{
+ return sbefifo_pib_thread_op(pib, SBEFIFO_INSN_OP_SRESET);
+}
+
static int sbefifo_thread_probe(struct pdbg_target *target)
{
struct thread *thread = target_to_thread(target);
@@ -371,6 +418,10 @@ static struct pib sbefifo_pib = {
},
.read = sbefifo_pib_read,
.write = sbefifo_pib_write,
+ .thread_start_all = sbefifo_pib_thread_start,
+ .thread_stop_all = sbefifo_pib_thread_stop,
+ .thread_step_all = sbefifo_pib_thread_step,
+ .thread_sreset_all = sbefifo_pib_thread_sreset,
.fd = -1,
};
DECLARE_HW_UNIT(sbefifo_pib);
Signed-off-by: Amitay Isaacs <amitay@ozlabs.org> --- libpdbg/sbefifo.c | 51 +++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 51 insertions(+)