On Tue, Jul 25, 2023 at 10:18 PM Steve Clevenger OS <scclevenger@xxxxxxxxxxxxxxxxxxxxxx> wrote: > > > Hi Rafael, Len, > > On 7/24/2023 9:25 AM, Suzuki K Poulose wrote: > > Hi Rafael/Len > > > > On 19/07/2023 11:11, Suzuki K Poulose wrote: > >> Rafael, Len > >> > >> Ping (packets 6, lost 100%). > >> > >> > >> On 10/07/2023 17:40, Suzuki K Poulose wrote: > >>> Rafael, Len > >>> > >>> On 10/07/2023 07:25, Anshuman Khandual wrote: > >>>> From: Suzuki K Poulose <suzuki.poulose@xxxxxxx> > >>>> > >>>> Drop ETM4X ACPI ID from the AMBA ACPI device list, and instead just > >>>> move it > >>>> inside the new ACPI devices list detected and used via platform driver. > >>>> > >>>> Cc: "Rafael J. Wysocki" <rafael@xxxxxxxxxx> > >>>> Cc: Len Brown <lenb@xxxxxxxxxx> > >>>> Cc: Mathieu Poirier <mathieu.poirier@xxxxxxxxxx> > >>>> Cc: Suzuki K Poulose <suzuki.poulose@xxxxxxx> > >>>> Cc: Mike Leach <mike.leach@xxxxxxxxxx> > >>>> Cc: Leo Yan <leo.yan@xxxxxxxxxx> > >>>> Cc: Sudeep Holla <sudeep.holla@xxxxxxx> > >>>> Cc: Lorenzo Pieralisi <lpieralisi@xxxxxxxxxx> > >>>> Cc: linux-acpi@xxxxxxxxxxxxxxx > >>>> Cc: coresight@xxxxxxxxxxxxxxxx > >>>> Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx > >>>> Cc: linux-kernel@xxxxxxxxxxxxxxx > >>>> Reviewed-by: Sudeep Holla <sudeep.holla@xxxxxxx> (for ACPI specific > >>>> changes) > >>>> Signed-off-by: Suzuki K Poulose <suzuki.poulose@xxxxxxx> > >>>> Signed-off-by: Anshuman Khandual <anshuman.khandual@xxxxxxx> > >>> > >>> We would like to queue this via coresight tree. The acpi_amba bits have > >>> been reviewed by Sudeep. Please could you give us an Ack, if you are > >>> happy with the proposal ? > >>> > > > > Please could one of you respond to this patch ? We are blocked on your > > Ack for queuing this. There are machines out there, which rely on this > > patch to use Arm self-hosted tracing based on CoreSight. > > > > Kind regards > > Suzuki > > Ampere Computing AmpereOne machines rely on this patch series to enable > System Register Access to the ETMv4. Ampere removed the ETM MMIO > descriptions from our CoreSight ACPI to use this. > > Suzuki's e-mail requests for review/Ack of this patch thread date back > to May 30. I've just talked to Suzuki about this: https://lore.kernel.org/linux-acpi/20230726140515.368981-1-suzuki.poulose@xxxxxxx This patch has received a Reviewed-by from Sudeep which for all purposes should be sufficient for any ARM-related ACPI material that doesn't affect any other architectures. An ACK from me (or Len for that matter) would not make any real difference from the technical perspective. I would appreciate assigning an official ARM maintainer to acpi_amba.c so as to avoid such unnecessary delays in the future.
