mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2025-01-04 12:16:41 +00:00
ec72578ef9
Just couple of main additions:
1. Support for variable I/O width within ARM SCMI shared memory area.
Some shared memory areas might only support a certain access width,
such as 32-bit, which memcpy_{from,to}_io() does not adhere to at least
on ARM64 by making both 8-bit and 64-bit accesses to such memory.
This support updates the shmem layer to support reading from and
writing to such shared memory area using the specified I/O width
in the Device Tree. The various transport layers making use of the
shmem.c code are updated accordingly to pass the I/O accessors that
they store. The device tree bindings are also updated for the same.
2. Extension of SCMI transport bindings to add more properties
SCMI transports are characterized by a number of properties. The
values assumed by some of them tightly depend on the choices taken at
design time and on the overall archiecture of the specific platform:
things like timeouts, maximum message size and number of in-flight
messages are closely tied to the architecture of the platform like
number of SCMI agents on the system, physical memory available to the
SCMI platform and so on. Such details are not discoverable as they are
outside the scope of the SCMI protocol specification.
Currently such properties are simple default values defined at build
time, but the increasing number and variety of platforms using SCMI
with a wide range of designs has increased the need to have a way to
describe such properties across all these platforms.
Apart from the above two, there is one NULL pointer dereference fix for
very age old SCPI protocol driver which seems to be still in use on few
platforms.
-----BEGIN PGP SIGNATURE-----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=BbBY
-----END PGP SIGNATURE-----
gpgsig -----BEGIN PGP SIGNATURE-----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=rHuy
-----END PGP SIGNATURE-----
Merge tag 'scmi-updates-6.13' of https://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux into soc/drivers
Arm SCMI updates for v6.13
Just couple of main additions:
1. Support for variable I/O width within ARM SCMI shared memory area.
Some shared memory areas might only support a certain access width,
such as 32-bit, which memcpy_{from,to}_io() does not adhere to at least
on ARM64 by making both 8-bit and 64-bit accesses to such memory.
This support updates the shmem layer to support reading from and
writing to such shared memory area using the specified I/O width
in the Device Tree. The various transport layers making use of the
shmem.c code are updated accordingly to pass the I/O accessors that
they store. The device tree bindings are also updated for the same.
2. Extension of SCMI transport bindings to add more properties
SCMI transports are characterized by a number of properties. The
values assumed by some of them tightly depend on the choices taken at
design time and on the overall archiecture of the specific platform:
things like timeouts, maximum message size and number of in-flight
messages are closely tied to the architecture of the platform like
number of SCMI agents on the system, physical memory available to the
SCMI platform and so on. Such details are not discoverable as they are
outside the scope of the SCMI protocol specification.
Currently such properties are simple default values defined at build
time, but the increasing number and variety of platforms using SCMI
with a wide range of designs has increased the need to have a way to
describe such properties across all these platforms.
Apart from the above two, there is one NULL pointer dereference fix for
very age old SCPI protocol driver which seems to be still in use on few
platforms.
* tag 'scmi-updates-6.13' of https://git.kernel.org/pub/scm/linux/kernel/git/sudeep.holla/linux:
firmware: arm_scpi: Check the DVFS OPP count returned by the firmware
firmware: arm_scmi: Relocate atomic_threshold to scmi_desc
firmware: arm_scmi: Use max_msg and max_msg_size devicetree properties
dt-bindings: firmware: arm,scmi: Introduce more transport properties
firmware: arm_scmi: Calculate virtio PDU max size dynamically
firmware: arm_scmi: Account for SHMEM memory overhead
firmware: arm_scmi: Support 'reg-io-width' property for shared memory
dt-bindings: sram: Document reg-io-width property
firmware: arm_scmi: Use vendor string in max-rx-timeout-ms
dt-bindings: firmware: arm,scmi: Add missing vendor string
firmware: arm_scmi: Reject clear channel request on A2P
firmware: arm_scmi: Fix slab-use-after-free in scmi_bus_notifier()
Link: https://lore.kernel.org/r/20241106110727.4007489-1-sudeep.holla@arm.com
Signed-off-by: Arnd Bergmann <arnd@arndb.de>
|
||
|---|---|---|
| .. | ||
| allwinner,sun4i-a10-system-control.yaml | ||
| qcom,imem.yaml | ||
| qcom,ocmem.yaml | ||
| sram.yaml | ||