[coreboot] Patch merged into coreboot/master: e31c0ed Persimmon DSDT: Add OSC method

gerrit at coreboot.org gerrit at coreboot.org
Fri Mar 15 17:06:28 CET 2013

the following patch was just integrated into master:
commit e31c0ed9b5f789cb0207740c588c769f7eda5f0e
Author: Mike Loptien <mike.loptien at se-eng.com>
Date:   Tue Mar 12 10:21:24 2013 -0600

    Persimmon DSDT: Add OSC method
    The _OSC method is used to tell the OS what capabilities
    it can take control over from the firmware.  This method
    is described in chapter 6.2.9 of the ACPI spec v3.0.
    The method takes 4 inputs (UUID, Rev ID, Input Count,
    and Capabilities Buffer) and returns a Capabilites
    Buffer the same size as the input Buffer.  This Buffer
    is generally 3 Dwords long consisting of an Errors
    Dword, a Supported Capabilities Dword, and a Control
    Dword.  The OS will request control of certain
    capabilities and the firmware must grant or deny control
    of those features.  We do not want to have control over
    anything so let the OS control as much as it can.
    The _OSC method is required for PCIe devices and dmesg
    checks for its existence and issues an error if it is
    not found.
    Change-Id: I1494285def7440972f0549b7cb73eb94dafc72c2
    Signed-off-by: Mike Loptien <mike.loptien at se-eng.com>
    Reviewed-on: http://review.coreboot.org/2684
    Tested-by: build bot (Jenkins)
    Reviewed-by: Stefan Reinauer <stefan.reinauer at coreboot.org>

Build-Tested: build bot (Jenkins) at Fri Mar 15 01:01:24 2013, giving +1
Reviewed-By: Stefan Reinauer <stefan.reinauer at coreboot.org> at Fri Mar 15 17:06:23 2013, giving +2
See http://review.coreboot.org/2684 for details.


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