From: Chris Wilson Date: Mon, 3 Oct 2016 12:45:16 +0000 (+0100) Subject: drm/i915: Use correct index for backtracking HUNG semaphores X-Git-Tag: v4.9-rc1~41^2~1^2~8 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=27399eeec28ff33a0c5216a80cf57cbc6ba3c15e;p=platform%2Fkernel%2Flinux-exynos.git drm/i915: Use correct index for backtracking HUNG semaphores When decoding the semaphores inside hangcheck, we need to use the hw-id and not the local array index. Fixes: de1add360522 ("drm/i915: Decouple execbuf uAPI ...") Testcase: igt/gem_exec_whisper/hang # gen6-7 Signed-off-by: Chris Wilson Cc: Mika Kuoppala Cc: Tvrtko Ursulin Cc: Daniel Vetter Cc: stable@vger.kernel.org Reviewed-by: Joonas Lahtinen Link: http://patchwork.freedesktop.org/patch/msgid/20161003124516.12388-3-chris@chris-wilson.co.uk (cherry picked from commit 348b9b1192144e13b779f8f9be301d492bebaff2) Signed-off-by: Jani Nikula --- diff --git a/drivers/gpu/drm/i915/i915_irq.c b/drivers/gpu/drm/i915/i915_irq.c index 13fae1c..3fc286cd 100644 --- a/drivers/gpu/drm/i915/i915_irq.c +++ b/drivers/gpu/drm/i915/i915_irq.c @@ -2822,7 +2822,7 @@ semaphore_wait_to_signaller_ring(struct intel_engine_cs *engine, u32 ipehr, if (engine == signaller) continue; - if (offset == signaller->semaphore.signal_ggtt[engine->id]) + if (offset == signaller->semaphore.signal_ggtt[engine->hw_id]) return signaller; } } else { @@ -2832,13 +2832,13 @@ semaphore_wait_to_signaller_ring(struct intel_engine_cs *engine, u32 ipehr, if(engine == signaller) continue; - if (sync_bits == signaller->semaphore.mbox.wait[engine->id]) + if (sync_bits == signaller->semaphore.mbox.wait[engine->hw_id]) return signaller; } } - DRM_DEBUG_DRIVER("No signaller ring found for ring %i, ipehr 0x%08x, offset 0x%016llx\n", - engine->id, ipehr, offset); + DRM_DEBUG_DRIVER("No signaller ring found for %s, ipehr 0x%08x, offset 0x%016llx\n", + engine->name, ipehr, offset); return ERR_PTR(-ENODEV); }