1*ba82664cSAlexander ShishkinWhat: /sys/bus/intel_th/devices/<intel_th_id>-msc<msc-id>/wrap 2*ba82664cSAlexander ShishkinDate: June 2015 3*ba82664cSAlexander ShishkinKernelVersion: 4.3 4*ba82664cSAlexander ShishkinContact: Alexander Shishkin <alexander.shishkin@linux.intel.com> 5*ba82664cSAlexander ShishkinDescription: (RW) Configure MSC buffer wrapping. 1 == wrapping enabled. 6*ba82664cSAlexander Shishkin 7*ba82664cSAlexander ShishkinWhat: /sys/bus/intel_th/devices/<intel_th_id>-msc<msc-id>/mode 8*ba82664cSAlexander ShishkinDate: June 2015 9*ba82664cSAlexander ShishkinKernelVersion: 4.3 10*ba82664cSAlexander ShishkinContact: Alexander Shishkin <alexander.shishkin@linux.intel.com> 11*ba82664cSAlexander ShishkinDescription: (RW) Configure MSC operating mode: 12*ba82664cSAlexander Shishkin - "single", for contiguous buffer mode (high-order alloc); 13*ba82664cSAlexander Shishkin - "multi", for multiblock mode; 14*ba82664cSAlexander Shishkin - "ExI", for DCI handler mode; 15*ba82664cSAlexander Shishkin - "debug", for debug mode. 16*ba82664cSAlexander Shishkin If operating mode changes, existing buffer is deallocated, 17*ba82664cSAlexander Shishkin provided there are no active users and tracing is not enabled, 18*ba82664cSAlexander Shishkin otherwise the write will fail. 19*ba82664cSAlexander Shishkin 20*ba82664cSAlexander ShishkinWhat: /sys/bus/intel_th/devices/<intel_th_id>-msc<msc-id>/nr_pages 21*ba82664cSAlexander ShishkinDate: June 2015 22*ba82664cSAlexander ShishkinKernelVersion: 4.3 23*ba82664cSAlexander ShishkinContact: Alexander Shishkin <alexander.shishkin@linux.intel.com> 24*ba82664cSAlexander ShishkinDescription: (RW) Configure MSC buffer size for "single" or "multi" modes. 25*ba82664cSAlexander Shishkin In single mode, this is a single number of pages, has to be 26*ba82664cSAlexander Shishkin power of 2. In multiblock mode, this is a comma-separated list 27*ba82664cSAlexander Shishkin of numbers of pages for each window to be allocated. Number of 28*ba82664cSAlexander Shishkin windows is not limited. 29*ba82664cSAlexander Shishkin Writing to this file deallocates existing buffer (provided 30*ba82664cSAlexander Shishkin there are no active users and tracing is not enabled) and then 31*ba82664cSAlexander Shishkin allocates a new one. 32*ba82664cSAlexander Shishkin 33*ba82664cSAlexander Shishkin 34