diff options
Diffstat (limited to 'Software/Beignet.mdwn')
| -rw-r--r-- | Software/Beignet.mdwn | 35 |
1 files changed, 19 insertions, 16 deletions
diff --git a/Software/Beignet.mdwn b/Software/Beignet.mdwn index 7c84f502..eae15941 100644 --- a/Software/Beignet.mdwn +++ b/Software/Beignet.mdwn @@ -122,8 +122,8 @@ Supported Targets * 3rd Generation Intel Core Processors * Intel “Bay Trail” platforms with Intel HD Graphics - * 4th Generation Intel Core Processors, need kernel patch currently, see below - for details: + * 4th Generation Intel Core Processors, need kernel patch currently, see the "Known Issues" section. + * 5th Generation Intel Core Processors "Broadwell". Known Issues ------------ @@ -150,8 +150,8 @@ Known Issues `# echo 0 > /sys/module/i915/parameters/enable_cmd_parser` * Some unit test cases, maybe 20 to 30, fail on 4th Generation (HSW) platform. - The 4th Generation Intel Core Processors's support requires some Linux kernel - modification. You need to apply the patch at: + _The 4th Generation Intel Core Processors's support requires some Linux kernel + modification_. You need to apply the patch at: [https://01.org/zh/beignet/downloads/linux-kernel-patch-hsw-support](https://01.org/zh/beignet/downloads/linux-kernel-patch-hsw-support) * Precision issue. @@ -175,12 +175,12 @@ is also good which is about 99%. There are still some remains work items listed most of them are extension support and performance related. - Performance tuning. There are some major optimizations need to be done, - Peephole optimization, convert to structured BBs and leverage Gen's structured - instructions, and optimize the extreme slow software based sin/cos/... math - functions due to the native math instruction lack of necessary precision. - And all the code is inlined which will increase the icache miss rate - significantly. And many other things which are specified partially in - [[here|Beignet/Backend/TODO]]. + Peephole optimization, futher tuning the structurized BB transformation to + support more pattern such as self loop/while loop. And optimize the slow + software based sin/cos/... math functions due to the native math instruction + lack of necessary precision. And all the code is inlined which will increase + the icache miss rate significantly. And many other things which are specified + partially in [[here|Beignet/Backend/TODO]]. - Complete cl\_khr\_gl\_sharing support. We lack of some APIs implementation such as clCreateFromGLBuffer,clCreateFromGLRenderbuffer,clGetGLObjectInfo... Currently, @@ -194,9 +194,6 @@ most of them are extension support and performance related. (i.e. for each NDRangeKernels). This is really inefficient since some expensive pipe controls are issued for each batch buffer. -- Valgrind reports some leaks in libdrm. It sounds like a false positive but it - has to be checked. Idem for LLVM. There is one leak here to check. - More generally, everything in the run-time that triggers the "FATAL" macro means that something that must be supported is not implemented properly (either it does not comply with the standard or it is just missing) @@ -204,7 +201,7 @@ does not comply with the standard or it is just missing) Project repository ------------------ Right now, we host our project on fdo at: -[http://cgit.freedesktop.org/beignet/](http://cgit.freedesktop.org/beignet/). +[http://cgit.freedesktop.org/beignet/](http://cgit.freedesktop.org/beignet/). And the intel 01.org: [https://01.org/beignet](https://01.org/beignet) @@ -218,8 +215,14 @@ How to contribute ----------------- You are always welcome to contribute to this project, just need to subscribe to the beignet mail list and send patches to it for review. -The official mail list is as below: -[http://lists.freedesktop.org/mailman/listinfo/beignet](http://lists.freedesktop.org/mailman/listinfo/beignet) +The official mail list is as below: +[http://lists.freedesktop.org/mailman/listinfo/beignet](http://lists.freedesktop.org/mailman/listinfo/beignet) +The official bugzilla is at: +[https://bugs.freedesktop.org/enter_bug.cgi?product=Beignet](https://bugs.freedesktop.org/enter_bug.cgi?product=Beignet) +You are welcome to submit beignet bug. Please be noted, please specify the exact platform +information, such as BYT/IVB/HSW/BDW, and GT1/GT2/GT3. You can easily get this information +by running the beignet's unit test. + Documents for OpenCL application developers -------------------------------------- |