[Skiboot] [PATCH v3 4/6] external/mambo: skiboot.tcl add Power11 config

[Nicholas Piggin]

On Thu Feb 6, 2025 at 11:56 PM AEST, Mahesh Salgaonkar wrote:
> Setup skiboot.tcl with Power11 config to be boot on Power11 mambo.

I don't use mambo much these days but it looks okay. AFAIKS just
a copy paste of the P10 entry with PVR changed and s/P10/P11?

Acked-by: Nicholas Piggin <npiggin at gmail.com>

>
> Signed-off-by: Mahesh Salgaonkar <mahesh at linux.ibm.com>
> ---
>  external/mambo/skiboot.tcl | 28 ++++++++++++++++++++++++++++
>  1 file changed, 28 insertions(+)
>
> diff --git a/external/mambo/skiboot.tcl b/external/mambo/skiboot.tcl
> index 6c0eb5a0d0..cce84d2058 100644
> --- a/external/mambo/skiboot.tcl
> +++ b/external/mambo/skiboot.tcl
> @@ -175,6 +175,34 @@ if { $default_config == "P10" } {
>      }
>  }
>  
> +if { $default_config == "P11" } {
> +    # PVR configured for POWER11 DD2.0, LPAR-per-thread
> +    myconf config processor/initial/SIM_CTRL  0x0c1dd60000000000
> +    if { $mconf(threads) == 8 } {
> +        # Big-core mode.
> +        myconf config processor/initial/PVR 0x00820200
> +        myconf config processor/initial/SIM_CTRL1 0xc0400c0400040a40
> +	puts "Set P11 big-core mode"
> +    } else {
> +        # Small-core mode.
> +        myconf config processor/initial/PVR 0x00821200
> +        myconf config processor/initial/SIM_CTRL1 0xc0400c0401040a40
> +        if { $mconf(threads) != 1 && $mconf(threads) != 2 && $mconf(threads) != 4 } {
> +            puts "ERROR: Bad threads configuration"
> +            exit
> +        }
> +        if { $mconf(threads) != 4 && $mconf(cpus) != 1 } {
> +            puts "ERROR: Bad threads, cpus configuration"
> +            exit
> +        }
> +
> +	puts "Set P11 small-core mode"
> +    }
> +
> +    if { $mconf(numa) } {
> +        myconf config memory_region_id_shift 44
> +    }
> +}
>  
>  if { $mconf(numa) } {
>      myconf config memory_regions $mconf(cpus)