On 06/20/2012 06:48 PM, Jesse Barnes wrote: > On SNB and IVB, there's an MSR (also exposed through MCHBAR) we can use > to read out the amount of energy used over time. Expose this in sysfs > to make it easy to do power comparisons with different configurations. > > If the platform supports it, the file will show up under the > drm/card0/power subdirectory of the PCI device in sysfs as gt_energy_uJ. > The value in the file is a running total of energy (in microjoules) > consumed by the graphics device. > > v2: move to sysfs (Ben, Daniel) > expose a simple value (Chris) > drop unrelated hunk (Ben) > > Signed-off-by: Jesse Barnes <jbarnes at virtuousgeek.org> (Assuming I haven't checked all the magic register values but I trust that they work): Reviewed-by: Eugeni Dodonov <eugeni.dodonov at intel.com> Eugeni
