If we poison the request before we emit commands, it should be easier to spot when we execute an uninitialised request.
References: https://bugs.freedesktop.org/show_bug.cgi?id=100144 Signed-off-by: Chris Wilson <[email protected]> --- drivers/gpu/drm/i915/intel_ringbuffer.c | 1 + 1 file changed, 1 insertion(+) diff --git a/drivers/gpu/drm/i915/intel_ringbuffer.c b/drivers/gpu/drm/i915/intel_ringbuffer.c index 8c874996c617..1ec98851a621 100644 --- a/drivers/gpu/drm/i915/intel_ringbuffer.c +++ b/drivers/gpu/drm/i915/intel_ringbuffer.c @@ -1693,6 +1693,7 @@ u32 *intel_ring_begin(struct drm_i915_gem_request *req, int num_dwords) GEM_BUG_ON(ring->emit > ring->size - bytes); cs = ring->vaddr + ring->emit; + GEM_DEBUG_EXEC(memset(cs, POISON_INUSE, bytes)); ring->emit += bytes; ring->space -= bytes; GEM_BUG_ON(ring->space < 0); -- 2.11.0 _______________________________________________ Intel-gfx mailing list [email protected] https://lists.freedesktop.org/mailman/listinfo/intel-gfx
