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path: root/overlay/power.c
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2018-03-27overlay: Call setlocale around strtodChris Wilson
strtod() is locale-dependent. The decimal conversion depends on the radix character ('.' for some of us like myself) varies by locale. As the kernel reports its values using the "C" locale, we need to switch to that when parsing; and switch back before reporting to the user. Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=105712 Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk> Cc: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
2017-11-22intel-gpu-overlay: Use RAPL PMU for power readingTvrtko Ursulin
Wire up to the RAPL PMU for GPU energy readings. The only complication is that we have to add code to parse: # cat /sys/devices/power/events/energy-gpu.scale 2.3283064365386962890625e-10 v2: Link with -lm. v3: strtod can handle scientific notation, even though my initial reading of the man page did not spot that. (Chris Wilson) v4: Meson fix. Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
2017-11-22intel-gpu-overlay: Catch-up to new i915 PMUTvrtko Ursulin
v2: Update for i915 changes. v3: Use 1eN for large numbers. (Chris Wilson) v4: Update for upstream engine class enum. Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
2017-11-22intel-gpu-overlay: Consolidate perf PMU access to libraryTvrtko Ursulin
Various tool modules implement their owm PMU open wrapper which can be replaced by calling the library one. v2: * Remove extra newline. (Chris Wilson) * Commit msg. Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
2017-11-22intel-gpu-overlay: Move local perf implementation to a libraryTvrtko Ursulin
Idea is to avoid duplication across multiple users in upcoming patches. v2: Commit message and use a separate library instead of piggy- backing to libintel_tools. (Chris Wilson) v3: Add Petri's meson build recipe. Signed-off-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com> Cc: Petri Latvala <petri.latvala@intel.com> Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
2015-11-18overlay: Show power consumption without i915-pmuChris Wilson
The power metter was not showing up due to an erroneous check for a failure to open the i915 perf interface. Reported-by: Marius Vlad <marius.c.vlad@intel.com> Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2013-08-27overlay: Read power from perf_eventsChris Wilson
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2013-08-23overlay: Fix power reading from debugfsChris Wilson
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2013-08-23overlay: Distinguish the root debugfs path and our dri nodeChris Wilson
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2013-08-23overlay: Search for right debugfs pathChris Wilson
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2013-08-20overlay: Add copyright statementsChris Wilson
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2013-08-20overlay: Sample power every secondChris Wilson
Found the bug, but still only read the msr once every second - mainly as an exercise in handling different sample rates. Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2013-08-20overlay: Fix counting failChris Wilson
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
2013-08-20overlay: Add graph for GPU power consumptionChris Wilson
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
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