>From d9e59b16738684ccbc8a82db5b46ab6c0daf507e Mon Sep 17 00:00:00 2001
Message-Id: <d9e59b16738684ccbc8a82db5b46ab6c0daf507e.1387201899.git.ian.lister@xxxxxxxxx>
In-Reply-To: <cover.1387201899.git.ian.lister@xxxxxxxxx>
References: <cover.1387201899.git.ian.lister@xxxxxxxxx>
From: ian-lister <ian.lister@xxxxxxxxx>
Date: Tue, 10 Dec 2013 14:56:06 +0000
Subject: [RFC 07/13] drm/i915: Additional debug for TDR
Additional debug in i915_request_guilty and gen6_do_reset.
Signed-off-by: ian-lister <ian.lister@xxxxxxxxx>
---
drivers/gpu/drm/i915/i915_gem.c | 4 ++++
drivers/gpu/drm/i915/intel_uncore.c | 2 ++
2 files changed, 6 insertions(+)
diff --git a/drivers/gpu/drm/i915/i915_gem.c b/drivers/gpu/drm/i915/i915_gem.c
index 42a1647..5b76da4 100644
--- a/drivers/gpu/drm/i915/i915_gem.c
+++ b/drivers/gpu/drm/i915/i915_gem.c
@@ -2251,12 +2251,16 @@ static bool i915_request_guilty(struct drm_i915_gem_request *request,
if (i915_head_inside_object(acthd, request->batch_obj,
request_to_vm(request))) {
*inside = true;
+ DRM_DEBUG_TDR("Head in obj 0x%08x\n",
+ request->batch_obj);
return true;
}
}
if (i915_head_inside_request(acthd, request->head, request->tail)) {
*inside = false;
+ DRM_DEBUG_TDR("Head in req 0x%08x (HD: 0x%08x TL: 0x%08x)\n",
+ request, request->head, request->tail);
return true;
}
diff --git a/drivers/gpu/drm/i915/intel_uncore.c b/drivers/gpu/drm/i915/intel_uncore.c
index 8ab5385..79182bd 100644
--- a/drivers/gpu/drm/i915/intel_uncore.c
+++ b/drivers/gpu/drm/i915/intel_uncore.c
@@ -959,6 +959,8 @@ static int gen6_do_reset(struct drm_device *dev)
int ret;
unsigned long irqflags;
+ DRM_ERROR("Reset GPU (GPU Hang)\n");
+
/* Hold uncore.lock across reset to prevent any register access
* with forcewake not set correctly
*/
--
1.8.5.1
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