Check for errno == EBADF in kmtIoctl to detect misuse of the kfd_fd
in a forked child process.
Detect being in a forked child process pro-actively by implementing
a pthread_atfork callback.
Make sure all mutexes get reinitialized in the child process to avoid
deadlocks.
Check for being in a forked child process in CHECK_KFD_OPENED so that
all hsaKmt functions will return the appropriate status
HSAKMT_STATUS_KERNEL_IO_CHANNEL_NOT_OPENED.
Update InvalidKFDHandleTest to expect that error code.
Change-Id: I0238e5fba344dcaa454e97a35db2e2dcc8d1f607
Signed-off-by: Felix Kuehling <Felix.Kuehling@amd.com>
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>