Subject: Re: [PATCH] powerpc: Detect POWER9 architected mode

From: Michael Neuling <[email-masked]>
Date: Fri, 17 Feb 2017 11:57:26 +1100

Can you make the comment/title a bit more descriptive...  Have a look at
c674e703cb1028e468527163074810b4a17bf379 where we added the p8.

> Signed-off-by: Russell Currey <[email-masked]>

Other than that, the code looks good..

Acked-By: Michael Neuling <[email-masked]>

> ---
>  arch/powerpc/kernel/cputable.c | 19 +++++++++++++++++++
>  1 file changed, 19 insertions(+)
> 
> diff --git a/arch/powerpc/kernel/cputable.c b/arch/powerpc/kernel/cputable.c
> index 6a82ef039c50..d23a54b09436 100644
> --- a/arch/powerpc/kernel/cputable.c
> +++ b/arch/powerpc/kernel/cputable.c
> @@ -386,6 +386,25 @@ static struct cpu_spec __initdata cpu_specs[] = {
>  		.machine_check_early	=
> __machine_check_early_realmode_p8,
>  		.platform		= "power8",
>  	},
> +	{	/* 3.00-compliant processor, i.e. Power9 "architected" mode
> */
> +		.pvr_mask		= 0xffffffff,
> +		.pvr_value		= 0x0f000005,
> +		.cpu_name		= "POWER9 (architected)",
> +		.cpu_features		= CPU_FTRS_POWER9,
> +		.cpu_user_features	= COMMON_USER_POWER9,
> +		.cpu_user_features2	= COMMON_USER2_POWER9,
> +		.mmu_features		= MMU_FTRS_POWER9,
> +		.icache_bsize		= 128,
> +		.dcache_bsize		= 128,
> +		.num_pmcs		= 6,
> +		.pmc_type		= PPC_PMC_IBM,
> +		.oprofile_cpu_type	= "ppc64/ibm-compat-v1",
> +		.oprofile_type		= PPC_OPROFILE_INVALID,
> +		.cpu_setup		= __setup_cpu_power9,
> +		.cpu_restore		= __restore_cpu_power9,
> +		.flush_tlb		= __flush_tlb_power9,
> +		.platform		= "power9",
> +	},
>  	{	/* Power7 */
>  		.pvr_mask		= 0xffff0000,
>  		.pvr_value		= 0x003f0000,