Implement sDMA copy packet broadcast.
Each time sDMA will copy its local vram to sysbuf and next GPU's vram.
That will verify where the p2p link is broken.
Currently we just test push of p2p.
test result on 2 cpus, 4 gpus, numa enabled system.
[ RUN ] KFDQMTest.P2PTest
[ ] Test 2 -> 3
[ ] PASS 2 -> 3
[ ] Test 3 -> 4
[ ] PASS 3 -> 4
[ ] Test 4 -> 5
[ ] PASS 4 -> 5
[ ] Test 5 -> 0
[ ] PASS 5 -> 0
[ OK ] KFDQMTest.P2PTest (190 ms)
Change-Id: Ie6fb2604109e39465b8a873b3bb42abc6259825a
The code is a snapshot up to this commit around July 31 2018.
commit b00fadff36a3
Author: xinhui pan <xinhui.pan@amd.com>
Date: Mon Jul 30 09:53:03 2018 +0800
kfdtest: skip MMapLarge test on apu
Change-Id: I40e9a5a18e5c8f075e5290bb80532f1a3f689058
Signed-off-by: Yong Zhao <yong.zhao@amd.com>
xinhui pan
Yong Zhao