From: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> Make sure DSPSURF will change during the panning operation in flip-vs-panning-vs-hang. This will now test agains bugs between the kernel's mmio vs. CS flip race handling and GPU resets. If the kernel is buggy if will fail to notice that the panning operation changed the base address before the GPU reset had a chance to deal with the pending page flips, and so the flip would never complete due to DSPSURFLIVE not matching the expected value. Signed-off-by: Ville Syrjälä <ville.syrjala@xxxxxxxxxxxxxxx> --- tests/kms_flip.c | 4 ++++ 1 file changed, 4 insertions(+) diff --git a/tests/kms_flip.c b/tests/kms_flip.c index dd64182..6711f09 100644 --- a/tests/kms_flip.c +++ b/tests/kms_flip.c @@ -923,6 +923,10 @@ static unsigned int run_test_step(struct test_output *o) o->flip_state.count : o->vblank_state.count; int x_ofs = count * 10 > o->fb_width - o->kmode[0].hdisplay ? o->fb_width - o->kmode[0].hdisplay : count * 10; + /* Make sure DSPSURF changes value */ + if (o->flags & TEST_HANG) + o->current_fb_id = !o->current_fb_id; + igt_assert_f(set_mode(o, o->fb_ids[o->current_fb_id], x_ofs, 0) == 0, "failed to pan (%dx%d@%dHz)+%d: %s\n", o->kmode[0].hdisplay, o->kmode[0].vdisplay, o->kmode[0].vrefresh, -- 1.8.5.5 _______________________________________________ Intel-gfx mailing list Intel-gfx@xxxxxxxxxxxxxxxxxxxxx http://lists.freedesktop.org/mailman/listinfo/intel-gfx
