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Re: [PATCH 0/2] ppc/pnv: HOMER fixes and improvements


From: David Gibson
Subject: Re: [PATCH 0/2] ppc/pnv: HOMER fixes and improvements
Date: Thu, 12 Dec 2019 16:11:36 +1100
User-agent: Mutt/1.12.1 (2019-06-15)

On Wed, Dec 11, 2019 at 09:29:10AM +0100, Cédric Le Goater wrote:
> Hello,
> 
> The first patch introduces a new XSCOM region for the PBA bridge unit
> (Power Bus Access) which connects the OCC (On Chip Controller) to the
> Power bus and System Memory. The PBA is used to gather sensor data,
> for power management, for sleep states, for initial boot, among other
> things. This first patch also fixes :
> 
>  - BAR sizes and BAR masks
>  - The mapping of the OCC common area, which is common to all chips
>    and should be mapped once.  
>  - OCC common area is in BAR 3 on P8
> 
> and more globally, it fixes multichip support which is currently
> broken because of wrong mappings.
> 
> The OCC common area is mapped at a unique address on the system and
> each OCC is assigned a segment to expose its sensor data. This is
> fixed in the second patch.
> 
> Thanks,

Applied to ppc-for-5.0.


> 
> C. 
> 
> Cédric Le Goater (2):
>   ppc/pnv: Introduce PBA registers
>   ppc/pnv: Fix OCC common area region mapping
> 
>  include/hw/ppc/pnv.h       |  20 +++----
>  include/hw/ppc/pnv_homer.h |   3 +
>  include/hw/ppc/pnv_occ.h   |   8 ++-
>  include/hw/ppc/pnv_xscom.h |   6 ++
>  hw/ppc/pnv.c               |  12 +++-
>  hw/ppc/pnv_homer.c         | 109 +++++++++++++++++++++++++++++++++++++
>  hw/ppc/pnv_occ.c           |  11 ++--
>  hw/ppc/pnv_xscom.c         |  32 -----------
>  8 files changed, 148 insertions(+), 53 deletions(-)
> 

-- 
David Gibson                    | I'll have my music baroque, and my code
david AT gibson.dropbear.id.au  | minimalist, thank you.  NOT _the_ _other_
                                | _way_ _around_!
http://www.ozlabs.org/~dgibson

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