[RFC v1 10/10] powerpc: Add MMU_FTRS_POSSIBLE & MMU_FTRS_ALWAYS

[Christophe Leroy (CS GROUP)]

Le 25/02/2026 à 12:04, Ritesh Harjani (IBM) a écrit :
> Similar to CPU_FTRS_[POSSIBLE|ALWAYS], let's also print
> MMU_FTRS_[ALWAYS|ALWAYS]. This has some useful data to capture during
> bootup.

The patch subject is misleading, should be something like:

powerpc: Print MMU_FTRS_POSSIBLE & MMU_FTRS_ALWAYS at startup

With that fixed, Reviewed-by: Christophe Leroy (CS GROUP) 
<chleroy at kernel.org>



> 
> Signed-off-by: Ritesh Harjani (IBM) <ritesh.list at gmail.com>
> ---
>   arch/powerpc/kernel/setup-common.c | 4 ++++
>   1 file changed, 4 insertions(+)
> 
> diff --git a/arch/powerpc/kernel/setup-common.c b/arch/powerpc/kernel/setup-common.c
> index cb5b73adc250..002b312eb7e9 100644
> --- a/arch/powerpc/kernel/setup-common.c
> +++ b/arch/powerpc/kernel/setup-common.c
> @@ -866,6 +866,10 @@ static __init void print_system_info(void)
>   		cur_cpu_spec->cpu_user_features,
>   		cur_cpu_spec->cpu_user_features2);
>   	pr_info("mmu_features      = 0x%08x\n", cur_cpu_spec->mmu_features);
> +	pr_info("  possible        = 0x%016lx\n",
> +		(unsigned long)MMU_FTRS_POSSIBLE);
> +	pr_info("  always          = 0x%016lx\n",
> +		(unsigned long)MMU_FTRS_ALWAYS);
>   #ifdef CONFIG_PPC64
>   	pr_info("firmware_features = 0x%016lx\n", powerpc_firmware_features);
>   #ifdef CONFIG_PPC_BOOK3S
> --
> 2.53.0
>