2 * SPDX-License-Identifier: MIT
4 * Copyright © 2008-2018 Intel Corporation
10 #include <linux/compiler.h>
11 #include <linux/types.h>
12 #include <linux/srcu.h>
14 #include "intel_engine_types.h"
15 #include "intel_reset_types.h"
18 struct intel_engine_cs;
22 void intel_gt_init_reset(struct intel_gt *gt);
23 void intel_gt_fini_reset(struct intel_gt *gt);
26 void intel_gt_handle_error(struct intel_gt *gt,
27 intel_engine_mask_t engine_mask,
29 const char *fmt, ...);
30 #define I915_ERROR_CAPTURE BIT(0)
32 void intel_gt_reset(struct intel_gt *gt,
33 intel_engine_mask_t stalled_mask,
35 int intel_engine_reset(struct intel_engine_cs *engine,
38 void __i915_request_reset(struct i915_request *rq, bool guilty);
40 int __must_check intel_gt_reset_trylock(struct intel_gt *gt, int *srcu);
41 void intel_gt_reset_unlock(struct intel_gt *gt, int tag);
43 void intel_gt_set_wedged(struct intel_gt *gt);
44 bool intel_gt_unset_wedged(struct intel_gt *gt);
45 int intel_gt_terminally_wedged(struct intel_gt *gt);
48 * There's no unset_wedged_on_init paired with this one.
49 * Once we're wedged on init, there's no going back.
51 void intel_gt_set_wedged_on_init(struct intel_gt *gt);
53 int __intel_gt_reset(struct intel_gt *gt, intel_engine_mask_t engine_mask);
55 int intel_reset_guc(struct intel_gt *gt);
57 struct intel_wedge_me {
58 struct delayed_work work;
63 void __intel_init_wedge(struct intel_wedge_me *w,
67 void __intel_fini_wedge(struct intel_wedge_me *w);
69 #define intel_wedge_on_timeout(W, GT, TIMEOUT) \
70 for (__intel_init_wedge((W), (GT), (TIMEOUT), __func__); \
72 __intel_fini_wedge((W)))
74 static inline bool __intel_reset_failed(const struct intel_reset *reset)
76 GEM_BUG_ON(test_bit(I915_WEDGED_ON_INIT, &reset->flags) ?
77 !test_bit(I915_WEDGED, &reset->flags) : false);
79 return unlikely(test_bit(I915_WEDGED, &reset->flags));
82 bool intel_has_gpu_reset(const struct intel_gt *gt);
83 bool intel_has_reset_engine(const struct intel_gt *gt);
85 #endif /* I915_RESET_H */