[PATCH] powerpc: Detect POWER9 architected mode

[Suraj Jitindar Singh]

On Fri, 2017-02-17 at 10:59 +1100, Russell Currey wrote:
> Signed-off-by: Russell Currey <ruscur at russell.cc>
Tested-in-QEMU-by: Suraj Jitindar Singh <sjitindarsingh at gmail.com>
> ---
>  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,