[PATCH] riscv: acpi: Handle LPI architectural context loss flags

[Sudeep Holla]

On Tue, Jul 28, 2026 at 05:36:12PM +0800, Peixin Xie wrote:
> Commit 4785aa802853 ("cpuidle, ACPI: Evaluate LPI arch_flags for
> broadcast timer") replaced the generic nonzero check for LPI
> architectural context loss flags with arch_get_idle_state_flags().
> RISC-V does not implement the helper, so it falls back to the stub
> that returns 0. Consequently, CPUIDLE_FLAG_TIMER_STOP is not set when
> an LPI state loses the hart timer context, preventing cpuidle from
> using a broadcast timer for that state.
> 
> Implement the RISC-V helper and map the hart timer context loss flag
> to CPUIDLE_FLAG_TIMER_STOP.
> 

Acked-by: Sudeep Holla <sudeep.holla at kernel.org>

-- 
Regards,
Sudeep