On 1/27/26 11:38 AM, Deepak Kumar Singh wrote: > From: Chris Lew <[email protected]> > > A remoteproc booted during earlier boot stages such as UEFI or the > bootloader, may need to be attached to without restarting the remoteproc > hardware. To do this the remoteproc will need to check the ready and > handover states in smp2p without an interrupt notification. Create > qcom_smp2p_start_in() to initialize the shadow state without notifying > clients because these early events happened in the past. > > Add support for the .irq_get_irqchip_state callback so remoteproc can > read the current state of the fatal, ready and handover bits. > > Signed-off-by: Chris Lew <[email protected]> > Signed-off-by: Deepak Kumar Singh <[email protected]> > --- > drivers/soc/qcom/smp2p.c | 55 > ++++++++++++++++++++++++++++++++++++++++++++++++ > 1 file changed, 55 insertions(+) > > diff --git a/drivers/soc/qcom/smp2p.c b/drivers/soc/qcom/smp2p.c > index cb515c2340c1..c27ffb44b825 100644 > --- a/drivers/soc/qcom/smp2p.c > +++ b/drivers/soc/qcom/smp2p.c > @@ -222,6 +222,39 @@ static void qcom_smp2p_negotiate(struct qcom_smp2p > *smp2p) > } > } > > +static void qcom_smp2p_start_in(struct qcom_smp2p *smp2p) > +{ > + unsigned int smem_id = smp2p->smem_items[SMP2P_INBOUND]; > + unsigned int pid = smp2p->remote_pid; > + char buf[SMP2P_MAX_ENTRY_NAME]; > + struct smp2p_smem_item *in; > + struct smp2p_entry *entry; > + size_t size; > + int i; > + > + in = qcom_smem_get(pid, smem_id, &size); > + if (IS_ERR(in)) > + return; > + > + smp2p->in = in; > + > + /* Check if version is initialized by the remote. */ > + if (in->version == 0) > + return; > + > + for (i = smp2p->valid_entries; i < in->valid_entries; i++) { > + list_for_each_entry(entry, &smp2p->inbound, node) { > + memcpy(buf, in->entries[i].name, sizeof(buf));
Is there a reason for this copy at all? [...] > + /* Check inbound entries in the case of early boot processor */ "in case a remote processor has already been started"? Konrad
