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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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