Adding upstream version 6.6.15.upstream/6.6.15

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 81 insertions, 0 deletions

diff --git a/drivers/gpu/drm/i915/gt/intel_reset.h b/drivers/gpu/drm/i915/gt/intel_reset.h
new file mode 100644
index 000000000..25c975b6e
--- /dev/null
+++ b/drivers/gpu/drm/i915/gt/intel_reset.h
@@ -0,0 +1,81 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2008-2018 Intel Corporation
+ */
+
+#ifndef I915_RESET_H
+#define I915_RESET_H
+
+#include <linux/compiler.h>
+#include <linux/types.h>
+#include <linux/srcu.h>
+
+#include "intel_engine_types.h"
+#include "intel_reset_types.h"
+
+struct i915_request;
+struct intel_engine_cs;
+struct intel_gt;
+struct intel_guc;
+
+void intel_gt_init_reset(struct intel_gt *gt);
+void intel_gt_fini_reset(struct intel_gt *gt);
+
+__printf(4, 5)
+void intel_gt_handle_error(struct intel_gt *gt,
+			   intel_engine_mask_t engine_mask,
+			   unsigned long flags,
+			   const char *fmt, ...);
+#define I915_ERROR_CAPTURE BIT(0)
+
+void intel_gt_reset(struct intel_gt *gt,
+		    intel_engine_mask_t stalled_mask,
+		    const char *reason);
+int intel_engine_reset(struct intel_engine_cs *engine,
+		       const char *reason);
+int __intel_engine_reset_bh(struct intel_engine_cs *engine,
+			    const char *reason);
+
+void __i915_request_reset(struct i915_request *rq, bool guilty);
+
+int __must_check intel_gt_reset_trylock(struct intel_gt *gt, int *srcu);
+int __must_check intel_gt_reset_lock_interruptible(struct intel_gt *gt, int *srcu);
+void intel_gt_reset_unlock(struct intel_gt *gt, int tag);
+
+void intel_gt_set_wedged(struct intel_gt *gt);
+bool intel_gt_unset_wedged(struct intel_gt *gt);
+int intel_gt_terminally_wedged(struct intel_gt *gt);
+
+/*
+ * There's no unset_wedged_on_init paired with this one.
+ * Once we're wedged on init, there's no going back.
+ * Same thing for unset_wedged_on_fini.
+ */
+void intel_gt_set_wedged_on_init(struct intel_gt *gt);
+void intel_gt_set_wedged_on_fini(struct intel_gt *gt);
+
+int __intel_gt_reset(struct intel_gt *gt, intel_engine_mask_t engine_mask);
+
+int intel_reset_guc(struct intel_gt *gt);
+
+struct intel_wedge_me {
+	struct delayed_work work;
+	struct intel_gt *gt;
+	const char *name;
+};
+
+void __intel_init_wedge(struct intel_wedge_me *w,
+			struct intel_gt *gt,
+			long timeout,
+			const char *name);
+void __intel_fini_wedge(struct intel_wedge_me *w);
+
+#define intel_wedge_on_timeout(W, GT, TIMEOUT)				\
+	for (__intel_init_wedge((W), (GT), (TIMEOUT), __func__);	\
+	     (W)->gt;							\
+	     __intel_fini_wedge((W)))
+
+bool intel_has_gpu_reset(const struct intel_gt *gt);
+bool intel_has_reset_engine(const struct intel_gt *gt);
+
+#endif /* I915_RESET_H */