/* * 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); 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 */