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Commit | Line | Data |
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ba82664c AS |
1 | What: /sys/bus/intel_th/devices/<intel_th_id>-msc<msc-id>/wrap |
2 | Date: June 2015 | |
3 | KernelVersion: 4.3 | |
4 | Contact: Alexander Shishkin <alexander.shishkin@linux.intel.com> | |
5 | Description: (RW) Configure MSC buffer wrapping. 1 == wrapping enabled. | |
6 | ||
7 | What: /sys/bus/intel_th/devices/<intel_th_id>-msc<msc-id>/mode | |
8 | Date: June 2015 | |
9 | KernelVersion: 4.3 | |
10 | Contact: Alexander Shishkin <alexander.shishkin@linux.intel.com> | |
11 | Description: (RW) Configure MSC operating mode: | |
12 | - "single", for contiguous buffer mode (high-order alloc); | |
13 | - "multi", for multiblock mode; | |
14 | - "ExI", for DCI handler mode; | |
15 | - "debug", for debug mode. | |
16 | If operating mode changes, existing buffer is deallocated, | |
17 | provided there are no active users and tracing is not enabled, | |
18 | otherwise the write will fail. | |
19 | ||
20 | What: /sys/bus/intel_th/devices/<intel_th_id>-msc<msc-id>/nr_pages | |
21 | Date: June 2015 | |
22 | KernelVersion: 4.3 | |
23 | Contact: Alexander Shishkin <alexander.shishkin@linux.intel.com> | |
24 | Description: (RW) Configure MSC buffer size for "single" or "multi" modes. | |
25 | In single mode, this is a single number of pages, has to be | |
26 | power of 2. In multiblock mode, this is a comma-separated list | |
27 | of numbers of pages for each window to be allocated. Number of | |
28 | windows is not limited. | |
29 | Writing to this file deallocates existing buffer (provided | |
30 | there are no active users and tracing is not enabled) and then | |
31 | allocates a new one. | |
32 | ||
33 |