Re: [PATCH v19 00/10] Implement PSCI reboot mode driver for PSCI resets

[Shivendra Pratap]

On 1/26/2026 7:08 PM, Lorenzo Pieralisi wrote:
> On Sat, Jan 24, 2026 at 04:08:11PM +0530, Shivendra Pratap wrote:
>>
>>
>> On 1/6/2026 4:38 PM, Shivendra Pratap wrote:
>>>
>>>
>>> On 12/28/2025 10:50 PM, Shivendra Pratap wrote:
>>>> Userspace should be able to initiate device reboots using the various
>>>> PSCI SYSTEM_RESET and SYSTEM_RESET2 types defined by PSCI spec. This
>>>> patch series introduces psci-reboot-mode driver that registers with
>>>> reboot-mode framework to provide this functionality.
>>>>
>>>> The PSCI system reset calls takes two arguments: reset_type and cookie.
>>>> It defines predefined reset types, such as warm and cold reset, and
>>>> vendor-specific reset types which are SoC vendor specific. To support
>>>> these requirements, the reboot-mode framework is enhanced in two key
>>>> ways:
>>>> 1. 64-bit magic support: Extend reboot-mode to handle two 32-bit
>>>> arguments (reset_type and cookie) by encoding them into a single 64-bit
>>>> magic value.
>>>> 2. Predefined modes: Add support for predefined reboot modes in the
>>>> framework.
>>>>
>>>> With these enhancements, the patch series enables:
>>>>  - Warm reset and cold reset as predefined reboot modes.
>>>>  - Vendor-specific resets exposed as tunables, configurable via the
>>>>    SoC-specific device tree.
>>>>
>>>> Together, these changes allow userspace to trigger all above PSCI resets
>>>> from userspace.
>>>>
>>>
>>> Hi Lorenzo,
>>>
>>> Is this patch series now converging towards the design changes you
>>> proposed in v17? We’d like to conclude the design so we can move it
>>> towards closure.
>>
>> Hi Lorenzo,
>>
>> Can you please review if the design aligns with your proposed changes?
> 
> I will try to do it this week.

Hi Lorenzo,

Any pointers, if the change aligns towards your suggestions about the 
psci_sys_resets?

thanks,
Shivendra