On Tue, Aug 20, 2013 at 10:29:23AM +0100, Chris Wilson wrote: > From: Jesse Barnes <jbarnes@xxxxxxxxxxxxxxxx> > > 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@xxxxxxxxxxxxxxxx> > > v3: by Ben > Tied it into existing rc6 sysfs entries and named that a more generic > "power attrs." Fixed rebase conflicts. > > Signed-off-by: Ben Widawsky <ben@xxxxxxxxxxxx> > > v4: Since RAPL is a real driver that already exists to serve power > monitoring, place our entry in debugfs. This gives me a fallback > location for systems that do not expose it otherwise. > > Signed-off-by: Chris Wilson <chris@xxxxxxxxxxxxxxxxxx> Yeah, makes sense to keep this handy for our own tooling. Queued for -next, thanks for the patch. -Daniel -- Daniel Vetter Software Engineer, Intel Corporation +41 (0) 79 365 57 48 - http://blog.ffwll.ch _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
