From 546b1b6a40999b6fb23cb45aaffa72d02076306c Mon Sep 17 00:00:00 2001 From: Chris Wilson Date: Mon, 15 Aug 2016 10:48:42 +0100 Subject: [PATCH] drm/i915: Store the active context object on all engines upon error With execlists, we have context objects everywhere, not just RCS. So store them for post-mortem debugging. This also has a secondary effect of removing one more unsafe list iteration with using preserved state from the hanging request. And now we can cross-reference the request's context state with that loaded by the GPU. Signed-off-by: Chris Wilson Reviewed-by: Joonas Lahtinen Link: http://patchwork.freedesktop.org/patch/msgid/1471254551-25805-3-git-send-email-chris@chris-wilson.co.uk --- drivers/gpu/drm/i915/i915_gpu_error.c | 28 ++++----------------------- 1 file changed, 4 insertions(+), 24 deletions(-) diff --git a/drivers/gpu/drm/i915/i915_gpu_error.c b/drivers/gpu/drm/i915/i915_gpu_error.c index 1c098fa65fbe..d11630bac188 100644 --- a/drivers/gpu/drm/i915/i915_gpu_error.c +++ b/drivers/gpu/drm/i915/i915_gpu_error.c @@ -1043,28 +1043,6 @@ static void error_record_engine_registers(struct drm_i915_error_state *error, } } -static void i915_gem_record_active_context(struct intel_engine_cs *engine, - struct drm_i915_error_state *error, - struct drm_i915_error_engine *ee) -{ - struct drm_i915_private *dev_priv = engine->i915; - struct drm_i915_gem_object *obj; - - /* Currently render ring is the only HW context user */ - if (engine->id != RCS || !error->ccid) - return; - - list_for_each_entry(obj, &dev_priv->mm.bound_list, global_list) { - if (!i915_gem_obj_ggtt_bound(obj)) - continue; - - if ((error->ccid & PAGE_MASK) == i915_gem_obj_ggtt_offset(obj)) { - ee->ctx = i915_error_ggtt_object_create(dev_priv, obj); - break; - } - } -} - static void i915_gem_record_rings(struct drm_i915_private *dev_priv, struct drm_i915_error_state *error) { @@ -1114,6 +1092,10 @@ static void i915_gem_record_rings(struct drm_i915_private *dev_priv, i915_error_ggtt_object_create(dev_priv, engine->scratch.obj); + ee->ctx = + i915_error_ggtt_object_create(dev_priv, + request->ctx->engine[i].state); + if (request->pid) { struct task_struct *task; @@ -1144,8 +1126,6 @@ static void i915_gem_record_rings(struct drm_i915_private *dev_priv, ee->wa_ctx = i915_error_ggtt_object_create(dev_priv, engine->wa_ctx.obj); - i915_gem_record_active_context(engine, error, ee); - count = 0; list_for_each_entry(request, &engine->request_list, link) count++; -- 2.20.1