3 Commits

Author	SHA1	Message	Date
Daniel Vetter	8bf115ed99	lib/igt.cocci: Add stanza for for_each_pipe ... Damien dodged this ... Also run the script while at it. v2: Don't just capture identifiers for pipe, but also expressions. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>	2014-07-11 17:43:22 +02:00
Daniel Vetter	c9c554594e	tests: run igt.cocci ... Re-run with correct igt_fail rules. Again manually fixup missing includes for igt_core.h. Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>	2014-06-13 18:27:59 +02:00
Ville Syrjälä	78f79e4e95	tests/kms_fence_pin_leak: Exercise full ppgtt fence pin_count leak in the kernel ... The kernel full ppgtt support has a bug where it can drop a pinned fence to the floor, hence we leak the pin_count as the subsequent fence unpin becomes a nop. We can trigger it easily by unbinding a buffer from a ppgtt address space while the buffer is simultaneosly being used for scanout. Make the kernel leak the fence pin_count and trick it into picking a new fence register for the next scanout buffer. Looping like this for a while we leak the pin_count for all fence registers after which the kernel can no longer find a new fence register when it needs one. As a result we get back a SIGBUS from the GTT mmap access. Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>	2014-05-14 19:16:49 +03:00