Some i915.ko features have very nice IGT tests, which are never
executed because the features are disabled by default. This leads to
unnoticed regressions both in the Kernel and in the IGT tests. We
have seen this multiple times, for example, on FBC and PSR.
We want to be able to run IGT and actually test these
disabled-by-default features in order to make sure we at least don't
break them even more. Sometimes they may be disabled for some specific
reason, and we don't want to increase the set of reasons without
noticing.
To help solving this problem, this commit adds some helper functions
that should make it easier to change certain i915.ko parameters and
then restore their original values at the end of the test. With this,
I'm hoping QA will be able to detect any regressions and automatically
bisect them - or, with PRTS, reject the patches before they are even
merged.
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
Just a little helper for code that needs to wait for a certain
condition to happen. It has the nice advantage that it can survive the
signal helper.
Despite the callers added in this patch, there is another that will go
in a separate patch, and another in a new IGT test file that I plan to
push later.
v2: Check COND again before returning in case we hit the timeout.
Signed-off-by: Paulo Zanoni <paulo.r.zanoni@intel.com>
This is an extention of igt_debug_wait_for_keypress that also can have
customized message and return key pressed.
v2: This is actualy a v2. V1 was an extension of original
igt_debug_wait_for_keypress but it was nacked.
v3: Make [Y/n] check inside aux function as suggested by Daniel.
Also renaming and adding first use case along with the axu function.
v4: Simplify function name and make it assert pressed key
is different from n/N as suggested by Daniel.
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
intel-gpu-tools currently has a bunch of tests for suspend,
but currently none (that I could find) for hibernate.
Attached is a rudimentary patch to add said test. It does so
by repurposing the drv_suspend driver to handle both suspend
and hibernate, since the difference is miniscule.
I decided to split the suspend/autoresume functions in
igt_aux.c though, to be able to leave the igt_system_uspend_autoresume()
function unchanged (the other option would be to
introduce a boolean function argument and have that
decide what parameters to pass to rtcwake).
The timeout passed to rtcwake probably needs tuning (it might
even need to be dynamically adjusted, since the time hibernation takes
varies wildly depending on the amount of non-cache memory in use).
Signed-off-by: David Weinehall <david.weinehall@intel.com>
Reviewed-by: Imre Deak <imre.deak@intel.com>
Also move forcewake and stop_rings code from igt_debugfs to igt_gt
since it fits better. And move the hang injection fork helpers from
igt_aux to igt_gt, too.
Also push the intel_gen call into igt_hang_ring while at it.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
It collides with the subtest naming convention glossary entry for swap.
Which makes the docbook xml stuff unhappy.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Use cmdline variable for interactive debug instead of env var.
v2: Make interactive-debug domain optional and use "all" when not set.
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Add a function to lock memory into RAM and use it in the
gem_tiled_swapping test to reduce the amount of allocated memory
required to force swapping. This also reduces the amount of time
required for the test to complete, since the data set is smaller.
The following durations were recorded with gem_tiled_swapping on a
haswell system before the change:
Subtest non-threaded: SUCCESS (55.889s)
Subtest threaded: SUCCESS (810.532s)
and after:
Subtest non-threaded: SUCCESS (11.804s)
Subtest threaded: SUCCESS (268.336s)
v2: add various assertions and requirements and make sure
gem_tiled_swapping works on systems with less RAM (Daniel Vetter)
v3: fix allocation size calculation
Signed-off-by: Thomas Wood <thomas.wood@intel.com>
swap() will swap its two arguments while keeping the required
tmp variable hidden. Makes for neater code.
Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
More in line with the usual igt pattern and simplifies the code -
every called just wrapped it in igt_require.
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
This triggers a device suspended WARN in the kernel in
gen6_ggtt_insert_entries() while calling the GEM pwrite ioctl.
The sequence is suggested by Daniel.
Signed-off-by: Imre Deak <imre.deak@intel.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Regression from:
commit be4710a541b517b5f8663448bffed5656d59b47b
Author: Thomas Wood <thomas.wood@intel.com>
Date: Fri Oct 10 11:20:35 2014 +0100
lib: add common min and max macros
Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=85218
Tested-by: Guo Jinxian <jinxianx.guo@intel.com>
Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>
- Use keys in just one env variable to enable/disable it.
- Add an informational message so that the users knows when to press
the key (more useful over ssh than when run on the terminal ofc).
- Improve the documentation so that it's clearer how to use this
when running tests.
Cc: Rodrigo Vivi <rodrigo.vivi@intel.com>
Cc: Damien Lespiau <damien.lespiau@intel.com>
Acked-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Reset the system to a vanilla state before we query how much RAM/swap
space is available for our testing.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
If there is not enough free RAM+swap for us to execute our test, we will
hit OOM, so check first.
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
So I wasn't really happy with env_set since it's way too close to
setenv(), whic actually _sets_ and environment variable. So use check
instead of set as the verb (well adjective for env_set).
Also sprinkle in some hints that we talk about a boolean setting here.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
And shovel all the various helpers in there.
Also move igt_set_vt_graphics_mode to igt_kms.h since the function is
implemented in igt_kms.c. And it fits better. I kinda missed this in
the prep work.
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
