This is one reason for some of the sporadic kms_flip failures.
One such is https://bugs.freedesktop.org/show_bug.cgi?id=59834.
v2:
- use unsigned long for KDSETMODE/KDGETMODE
- fix passing the parameter to KDGETMODE as it should be by value
- actually testing that it works..
v3:
- don't do an explicit DPMS_ON, only switch to graphics mode.
v4:
- use the newly added drmtest_set_vt_graphics_mode(), which will also
take care of restoring the original mode. (Daniel)
Signed-off-by: Imre Deak <imre.deak@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
We need to clear out the error_state. While at it also make sure that
the hang was indeed detected.
Whoever writes the next test to race against gpu hangs should probably
extract these two functions into the drmtest library. Which just one
user that's not really worth it right now.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
flip-vs-bad-tiling tests that page flipping to a Y-tiled buffer returns
an error correctly, rather than triggering kernel BUG for instance.
Create a third fb for this purpose. After the fb has been created,
change its tiling mode to Y. When performing a flip, target this
Y-tiled fb and make sure we get the expected error value.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
The flip-vs-panning-vs-hang is just like the regular flip-vs-panning
test, except it also hangs the GPU. This will test whether panning
works after a pending page flip has been cancelled by a GPU reset,
and also whether page flip events get delivered correctly.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Do not use the TEST_HANG flag to determine whether page flip events are
used. Add a new TEST_NOEVENT flag that can be used to disable the use
of events instead.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
autoconf can be configured to not generate a config.h but to give the
defines with command line arguments instead. In this case, there's no
config.h to include.
To work in both cases autoconf adds a HAVE_CONFIG_H define on the command
line to signal there's a config.h to include.
Signed-off-by: Damien Lespiau <damien.lespiau@intel.com>
The flip-vs-modeset-vs-hang test will:
1. simulate a GPU hang
2. exec a nop batch
3. schedule a page flip
4. perform a modeset operation
With the current buggy kernel driver, the modeset operation will
hang indefinitely waiting for the flip to complete. Since the
rings are stopped, that will never happen. The current GPU reset
code doesn't play well with page flips either, so a GPU reset
won't fix things.
Once the kernel driver is fixed, the eventual GPU reset will
save the day.
The nop batch buffer is required only because the kernel can't
currently detect GPU hangs, unless there is at least one user
submitted request pending.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Pass an argument to do_page_flip() telling it whether to request flip
events.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
