linux-kernel - [PATCH 0/2] Make cppc acpi driver aware of pcc subspace ids

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Message-Id: <1497363431-10002-1-git-send-email-george.cherian@cavium.com>
Date:   Tue, 13 Jun 2017 14:17:09 +0000
From:   George Cherian <george.cherian@...ium.com>
To:     linux-acpi@...r.kernel.org, linux-kernel@...r.kernel.org,
        devel@...ica.org
Cc:     rjw@...ysocki.net, lenb@...nel.org, jassisinghbrar@...il.com,
        robert.moore@...el.com, lv.zheng@...el.com,
        George Cherian <george.cherian@...ium.com>
Subject: [PATCH 0/2] Make cppc acpi driver aware of pcc subspace ids

The current cppc acpi driver works with only one pcc subspace id.
It maintains and registers only one pcc channel even if the acpi table has 
different pcc subspace ids. 

As per ACPI 6.2 spec  all PCC registers, for all processors in the same 
performance domain (as defined by _PSD), must be defined to be in the same
subspace. The series tries to address the same by making cppc acpi driver 
aware of multiple possible pcc subspace ids.

Patch 1 : In preparation to share the MAX_PCC_SUBSPACE definition with cppc acpi
          driver
Patch 2 : Make the cppc acpi driver aware of multiple pcc subspace ids.


George Cherian (2):
  mailbox: PCC: Move the MAX_PCC_SUBSPACES definition to header file
  ACPI / CPPC: Make cppc acpi driver aware of pcc subspace ids

 drivers/acpi/cppc_acpi.c | 179 +++++++++++++++++++++++++----------------------
 drivers/mailbox/pcc.c    |   1 -
 include/acpi/pcc.h       |   1 +
 3 files changed, 97 insertions(+), 84 deletions(-)

-- 
2.7.4