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| author | Yang Rong <rong.r.yang@intel.com> | 2014-09-05 11:25:05 +0800 |
|---|---|---|
| committer | Zhigang Gong <zhigang.gong@intel.com> | 2014-09-09 17:52:30 +0800 |
| commit | 452081dd196c7586bfa38c10b9667fdb91707ba1 (patch) | |
| tree | 98a15a4b9776ab9ab99f259a624d25b6e1d7db22 | |
| parent | d68ab34bf958b965522856e1c9f361aa5ba3c075 (diff) | |
| download | beignet-452081dd196c7586bfa38c10b9667fdb91707ba1.tar.gz | |
Update README for the command parser in drm kernel.
Signed-off-by: Yang Rong <rong.r.yang@intel.com>
Reviewed-by: Zhigang Gong <zhigang.gong@linux.intel.com>
| -rw-r--r-- | docs/Beignet.mdwn | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/docs/Beignet.mdwn b/docs/Beignet.mdwn index 1cbffa4c..d47f3dc9 100644 --- a/docs/Beignet.mdwn +++ b/docs/Beignet.mdwn @@ -72,6 +72,14 @@ really recent C++11 features, you may expect problems with older compilers. Last time I tried, the code breaks ICC 12 and Clang with internal compiler errors while compiling anonymous nested lambda functions. +**Note about Linux Kernel** +* There is a known issue in some versions of linux kernel which enable register whitelist feature + but miss some necessary registers which are required for beignet. The problematic version are + around 3.15 and 3.16 which have commit f0a346b... but haven't commit c9224f... If it is the case, + you can apply c9224f... manually and rebuild the kernel or just disable the parse command by + invoke the following command (use Ubuntu as an example): + `# echo 0 > /sys/module/i915/parameters/enable_cmd_parser` + How to build and install ------------------------ |