AArch64 has support for PSCI. This is especially useful for SMP because
PSCI is used to power on the secordary cores.
When the PSCI driver was introduced in Zephyr it was designed to rely on
a very PSCI-centric subsystem / interface.
There are two kinds of problems with this choice:
1. PSCI is only defined for the non-secure world and it is designed to
boot CPU cores into non-secure state (that means that PSCI is only
supposed to work if Zephyr is running in non-secure state)
2. There can be other ways or standards used to start / stop a core
different from PSCI
This patch is trying to fix the original wrong assumption by making the
interface / subsystem a generic one, called 'pm_cpu_ops', and using PSCI
only as an actual driver that is a user of this new interface /
subsystem.
For now the new subsystem is only exposing two methods: cpu_on and
cpu_off, others will probably follow according to the needs.
Signed-off-by: Carlo Caione <ccaione@baylibre.com>
Add Nuvoton developers, ChiHuaL and WealianLiao, as collaborators for
Nuvoton platforms in MAINTAINERS.yaml.
Signed-off-by: Mulin Chao <mlchao@nuvoton.com>
The changes here are the result of running all open pull-requests
through a script to identify the assignee and findi ng many gaps or old
data. Some of the changes here are coming from pending PRs that were
waiting for some TSC confirm ation, others are done based on pending
maintainer and collaborator changes that were not submitting yet.
Two noteable changes:
- CMake/Build system: This is now limited to just the infrastructure and
not every single Cmake file in the tree. - Documentation: ditto, this
is just for the doc infrastructure and not for every RST file in the
tree.
The reason for the above two changes is the fact that most PRs would
have some cmake or doc changes and assignees in this case should not be
the owners of the build system or the doc infra, instead we should
assign to the subsystem being changed. (Otherwise majority of PRs would
be assigned to the doc and build system maintainers).
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
Firmware implementing the PSCI functions described in ARM document
number ARM DEN 0022A ("Power State Coordination Interface System
Software on ARM processors") can be used by Zephyr to initiate various
CPU-centric power operations.
It is needed for virtualization, it is used to coordinate OSes and
hypervisors and it provides the functions used for SMP bring-up such as
CPU_ON and CPU_OFF.
A new PSCI driver is introduced to setup a proper subsystem used to
communicate with the PSCI firmware, implementing the basic operations:
get_version, cpu_on, cpu_off and affinity_info.
The current implementation only supports PSCI 0.2 and PSCI 1.0
The PSCI conduit (SMC or HVC) is setup reading the corresponding
property in the DTS node.
Signed-off-by: Carlo Caione <ccaione@baylibre.com>
Do not include every single Kconfig file as part of this area, Kconfigs
in different areas are maintained by the repective component
maintainers.
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
- Status is now orphaned.
- There has been a bit of activity in this area over the last
few months and I'm sure one or more of these new stake holders
would make a fine maintainer.
Signed-off-by: Michael Scott <mike@foundries.io>
Commit: 11de84a6b4ec4be23bed92bf2d8d36f3876189b6 moved shell core
tests from tests/shell to tests/subsys/shell. Remove obsolete path
from MAINTAINERS.yml accordingly.
Signed-off-by: Jakub Rzeszutko <jakub.rzeszutko@nordicsemi.no>
Currently there is no maintainer and active collaborator in watchdog
subsystem area. I hope this helps to encourage Zephyr developments.
Signed-off-by: Katsuhiro Suzuki <katsuhiro@katsuster.net>
This patch gathers and adds all RISCV related directories into
'RISCV arch' entry.
It is preliminary modification until suitable maintainer (or entry)
for each RISCV boards or sub-architecture appears in the future.
Signed-off-by: Katsuhiro Suzuki <katsuhiro@katsuster.net>
Cleanup comments: # Provisional entry, subject to approval
That's because the MAINTAINERS file was reviewed in the
last TSC F2F and the entries are not provisional any more.
Signed-off-by: Ioannis Glaropoulos <Ioannis.Glaropoulos@nordicsemi.no>
Currently there is no maintainer and active collaborator in RISCV
subsys area. I hope this helps to encourage RISCV developments.
Signed-off-by: Katsuhiro Suzuki <katsuhiro@katsuster.net>
There are two issues in MAINTAINERS.yml.
tests/subsys/fs/littlefs/ specified under Little FS doesn't have the
trailing slash (/).
The commit 0eaa495ccb renamed
samples/drivers/CAN to can but MAINTAINERS.yml wasn't.
Signed-off-by: Yasushi SHOJI <yasushi.shoji@gmail.com>
In order to be able to add more entries under 'subsys/mgmt', move the
current contents of it, which relate exclusively to MCUMgr, to its own
folder.
Signed-off-by: Carles Cufi <carles.cufi@nordicsemi.no>
