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tests/lib: make sure the GPU is idle at test start and exit

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Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=64270

v2:
- Make sure also that the GPU is idle at start and error exit of any
  test using drm_open_any(). (Daniel)
v3:
- actually call gem_quiescent_gpu() at exit

Signed-off-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
This commit is contained in:
Imre Deak 2013-05-28 17:35:32 +03:00 committed by Daniel Vetter
parent a3b47dbe69
commit 1cb4f90946
1 changed files with 26 additions and 1 deletions
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27
lib/drmtest.c
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@ -228,7 +228,7 @@ int drm_get_card(int master)
}
/** Open the first DRM device we can find, searching up to 16 device nodes */
int drm_open_any(void)
static int __drm_open_any(void)
{
char *name;
int ret, fd;
@ -248,6 +248,31 @@ int drm_open_any(void)
return fd;
}
static void quiescent_gpu_at_exit(int sig)
{
int fd;
fd = __drm_open_any();
if (fd >= 0) {
gem_quiescent_gpu(fd);
close(fd);
}
}
int drm_open_any(void)
{
static int open_count;
int fd = __drm_open_any();
if (fd < 0 || __sync_fetch_and_add(&open_count, 1))
return fd;
gem_quiescent_gpu(fd);
drmtest_install_exit_handler(quiescent_gpu_at_exit);
return fd;
}
/**
* Open the first DRM device we can find where we end up being the master.
*/