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Diffstat (limited to 'Documentation/cma')
| -rw-r--r-- | Documentation/cma/debugfs.rst (renamed from Documentation/cma/debugfs.txt) | 8 |
1 files changed, 7 insertions, 1 deletions
diff --git a/Documentation/cma/debugfs.txt b/Documentation/cma/debugfs.rst index 6cef20a8cedc..518fe401b5ee 100644 --- a/Documentation/cma/debugfs.txt +++ b/Documentation/cma/debugfs.rst @@ -1,3 +1,9 @@ +:orphan: + +===================== +CMA Debugfs Interface +===================== + The CMA debugfs interface is useful to retrieve basic information out of the different CMA areas and to test allocation/release in each of the areas. @@ -12,7 +18,7 @@ The structure of the files created under that directory is as follows: - [RO] count: Amount of memory in the CMA area. - [RO] order_per_bit: Order of pages represented by one bit. - [RO] bitmap: The bitmap of page states in the zone. - - [WO] alloc: Allocate N pages from that CMA area. For example: + - [WO] alloc: Allocate N pages from that CMA area. For example:: echo 5 > <debugfs>/cma/cma-2/alloc |