Re: [PATCH v5 1/5] powerpc: Move idle_loop_prolog()/epilog() functions to header file
From: Michael Ellerman
Date: Tue May 05 2020 - 22:51:09 EST
On Tue, 2020-04-07 at 08:47:39 UTC, "Gautham R. Shenoy" wrote:
> From: "Gautham R. Shenoy" <ego@xxxxxxxxxxxxxxxxxx>
>
> Currently prior to entering an idle state on a Linux Guest, the
> pseries cpuidle driver implement an idle_loop_prolog() and
> idle_loop_epilog() functions which ensure that idle_purr is correctly
> computed, and the hypervisor is informed that the CPU cycles have been
> donated.
>
> These prolog and epilog functions are also required in the default
> idle call, i.e pseries_lpar_idle(). Hence move these accessor
> functions to a common header file and call them from
> pseries_lpar_idle(). Since the existing header files such as
> asm/processor.h have enough clutter, create a new header file
> asm/idle.h. Finally rename idle_loop_prolog() and idle_loop_epilog()
> to pseries_idle_prolog() and pseries_idle_epilog() as they are only
> relavent for on pseries guests.
>
> Signed-off-by: Gautham R. Shenoy <ego@xxxxxxxxxxxxxxxxxx>
Series applied to powerpc next, thanks.
https://git.kernel.org/powerpc/c/e4a884cc28fa3f5d8b81de46998ffe29b4ad169e
cheers