linux-kernel - [PATCH V9 0/3] powernv : Add support for OPAL-OCC command/response interface

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Message-Id: <1501486565-16079-1-git-send-email-shilpa.bhat@linux.vnet.ibm.com>
Date:   Mon, 31 Jul 2017 13:06:02 +0530
From:   Shilpasri G Bhat <shilpa.bhat@...ux.vnet.ibm.com>
To:     stewart@...ux.vnet.ibm.com, cyrilbur@...il.com
Cc:     linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
        benh@...nel.crashing.org, paulus@...ba.org, mpe@...erman.id.au,
        ego@...ux.vnet.ibm.com, svaidy@...ux.vnet.ibm.com,
        Shilpasri G Bhat <shilpa.bhat@...ux.vnet.ibm.com>
Subject: [PATCH V9 0/3] powernv : Add support for OPAL-OCC command/response interface

In P9, OCC (On-Chip-Controller) supports shared memory based
commad-response interface. Within the shared memory there is an OPAL
command buffer and OCC response buffer that can be used to send
inband commands to OCC. The following commands are supported:

1) Set system powercap
2) Set CPU-GPU power shifting ratio
3) Clear min/max for OCC sensor groups

Changes from V9:
- Fixed return after erroring from mutex_lock_interruptible()
- Added documentation

Shilpasri G Bhat (3):
  powernv: powercap: Add support for powercap framework
  powernv: Add support to set power-shifting-ratio
  powernv: Add support to clear sensor groups data

 .../ABI/testing/sysfs-firmware-opal-powercap       |  31 +++
 Documentation/ABI/testing/sysfs-firmware-opal-psr  |  18 ++
 .../bindings/powerpc/opal/sensor-groups.txt        |  23 ++
 arch/powerpc/include/asm/opal-api.h                |   8 +-
 arch/powerpc/include/asm/opal.h                    |   9 +
 arch/powerpc/include/uapi/asm/opal-occ.h           |  23 ++
 arch/powerpc/platforms/powernv/Makefile            |   2 +-
 arch/powerpc/platforms/powernv/opal-occ.c          | 116 ++++++++++
 arch/powerpc/platforms/powernv/opal-powercap.c     | 244 +++++++++++++++++++++
 arch/powerpc/platforms/powernv/opal-psr.c          | 175 +++++++++++++++
 arch/powerpc/platforms/powernv/opal-wrappers.S     |   5 +
 arch/powerpc/platforms/powernv/opal.c              |  10 +
 12 files changed, 662 insertions(+), 2 deletions(-)
 create mode 100644 Documentation/ABI/testing/sysfs-firmware-opal-powercap
 create mode 100644 Documentation/ABI/testing/sysfs-firmware-opal-psr
 create mode 100644 Documentation/devicetree/bindings/powerpc/opal/sensor-groups.txt
 create mode 100644 arch/powerpc/include/uapi/asm/opal-occ.h
 create mode 100644 arch/powerpc/platforms/powernv/opal-occ.c
 create mode 100644 arch/powerpc/platforms/powernv/opal-powercap.c
 create mode 100644 arch/powerpc/platforms/powernv/opal-psr.c

-- 
1.8.3.1