To simplify and speed up running interruptible tests, use a custom
ioctl() function that control the signaling and detect when we need no
more iterations to trigger an interruption.
We use a realtime timer to inject the signal after a certain delay,
increasing the delay on every loop to try and exercise different code
paths within the function. The first delay is very short such that we
hopefully enter the kernel with a pending signal.
Clients should use
struct igt_sigiter iter = {};
while (igt_sigiter_repeat(&iter, enable_interrupts=true))
do_test()
to automatically repeat the test until we can inject no more signals
into the ioctls. This is condensed into a macro
igt_interruptible(enable_interrupts=true)
do_test();
for convenience.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
The igt_command_line.sh script was moved by commit 685e577 (Move library
selftests to lib/tests), but the location of the tests and the test
lists was not updated.
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Thomas Wood <thomas.wood@intel.com>
The "check_" prefix ensures the test programs are not installed and are
only built when "make check" is run.
Signed-off-by: Thomas Wood <thomas.wood@intel.com>
Fix distcheck issues introduced by commit 685e577 (Move library
selftests to lib/tests).
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Thomas Wood <thomas.wood@intel.com>
Again they're not really igt testcases so are in the way of
running spatch unconditionally. Move them someplace else.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>