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No support for cfboost in Tegra SOCs

Open YaroST12 opened this issue 8 years ago • 5 comments

paths to files "/sys/module/input_cfboost/parameters/boost_freq" CPU boost clock "/sys/module/input_cfboost/parameters/boost_emc" emc boost clock "/sys/module/input_cfboost/parameters/boost_gpu" GPU boost clock "/sys/module/input_cfboost/parameters/boost_time" boost time "/sys/module/input_cfboost/parameters/boost_cpus" the number of cores to boost The GPU available clocks can be found in /sys/kernel/tegra_gpu/gpu_available_rates For EMC /sys/kernel/tegra_emc/emc_available_rates

YaroST12 avatar Apr 24 '17 09:04 YaroST12

More information needed. What are the values? Exact description?

Grarak avatar May 04 '17 23:05 Grarak

Boost freq - to which freq to boost CPU, emc boost - EMC freq to boost memory controller, gpu boost - freq to boost GPU, boost time is obvious, boost CPUs - how many CPUs to boost to boost freq(looks like it doesn't work). Do you really need exact values? They vary a lot depending on Tegra version.

YaroST12 avatar May 05 '17 05:05 YaroST12

Oh, and the gpu_wakeup file, same location, 0 or 1 value, wakes up the GPU on touch boost.

YaroST12 avatar May 05 '17 05:05 YaroST12

What are the values?

Grarak avatar Jun 16 '17 16:06 Grarak

For both tegras K1(32 and 64 bit) GPU - 72000 108000 180000 252000 324000 396000 468000 540000 612000 648000 684000 708000 756000 804000 852000 900000 924000 EMC - 204000 300000 396000 528000 600000 792000 924000 CPU for tegra k1-32 bit 204000 312000 564000 696000 828000 960000 1044000 1122000 1224000 1326000 1428000 1530000 1632000 1734000 1836000 1938000 2014500 2116500 2218500 2320500 2397000 2499000 although the set of clock speeds depends on kernel and files that i mentioned in first message are much more reliable.

YaroST12 avatar Jun 16 '17 16:06 YaroST12