drm/i915: Record more information about the hanging contexts

Include extra information such as the user_handle and hw_id so that
userspace can identify which of their contexts hung, useful if they are
performing self-diagnositics.

Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Cc: Mika Kuoppala <mika.kuoppala@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170129092433.10483-1-chris@chris-wilson.co.uk
Reviewed-by: Mika Kuoppala <mika.kuoppala@intel.com>
diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 457129b..448e5d8 100644
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -969,6 +969,16 @@ struct drm_i915_error_state {
 		u32 semaphore_mboxes[I915_NUM_ENGINES - 1];
 		struct intel_instdone instdone;
 
+		struct drm_i915_error_context {
+			char comm[TASK_COMM_LEN];
+			pid_t pid;
+			u32 handle;
+			u32 hw_id;
+			int ban_score;
+			int active;
+			int guilty;
+		} context;
+
 		struct drm_i915_error_object {
 			u64 gtt_offset;
 			u64 gtt_size;
@@ -1002,10 +1012,6 @@ struct drm_i915_error_state {
 				u32 pp_dir_base;
 			};
 		} vm_info;
-
-		pid_t pid;
-		char comm[TASK_COMM_LEN];
-		int context_bans;
 	} engine[I915_NUM_ENGINES];
 
 	struct drm_i915_error_buffer {