Linux 3.16 Aims To Enable Radeon BAPM By Default
Written by Michael Larabel in AMD on 2 July 2014 at 06:18 PM EDT. 6 Comments
A DRM-fixes pull request for the open-source Radeon Linux graphics driver for the Linux 3.16 kernel is going to enable BAPM by default for some APU systems.

BAPM is a power management feature that handles power budgeting between the CPU/GPUs on APUs. Up to now BAPM has been disabled by default, but for fixing some power-related bugs, this feature is looking to be turned on post-3.16 merge window for some AMD APU hardware.

The BAPM functionality will be enabled by default for Kaveri and Kabini along with Trinity and Richland boards. Besides enabling this power management feature, the latest Radeon Linux 3.16 fixes queue has also some other basic fixes. The main reason for enabling this APU power feature now is to address outstanding bugs. The BAPM support was already found within the Radeon kernel driver but disabled by default as the code still required further work.

The Radeon fixes pull can be found via this pull request, which was already submitted to Linus Torvalds by DRM sub-system maintainer David Airlie.
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Michael Larabel is the principal author of Phoronix.com and founded the site in 2004 with a focus on enriching the Linux hardware experience. Michael has written more than 10,000 articles covering the state of Linux hardware support, Linux performance, graphics drivers, and other topics. Michael is also the lead developer of the Phoronix Test Suite, Phoromatic, and OpenBenchmarking.org automated benchmarking software. He can be followed via Twitter or contacted via MichaelLarabel.com.

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