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1/* SPDX-License-Identifier: MIT */2/*3 * Copyright © 2008-2018 Intel Corporation4 */5 6#ifndef I915_RESET_H7#define I915_RESET_H8 9#include <linux/compiler.h>10#include <linux/types.h>11#include <linux/srcu.h>12 13#include "intel_engine_types.h"14#include "intel_reset_types.h"15 16struct i915_request;17struct intel_engine_cs;18struct intel_gt;19struct intel_guc;20 21void intel_gt_init_reset(struct intel_gt *gt);22void intel_gt_fini_reset(struct intel_gt *gt);23 24__printf(4, 5)25void intel_gt_handle_error(struct intel_gt *gt,26 intel_engine_mask_t engine_mask,27 unsigned long flags,28 const char *fmt, ...);29#define I915_ERROR_CAPTURE BIT(0)30 31void intel_gt_reset(struct intel_gt *gt,32 intel_engine_mask_t stalled_mask,33 const char *reason);34int intel_engine_reset(struct intel_engine_cs *engine,35 const char *reason);36int __intel_engine_reset_bh(struct intel_engine_cs *engine,37 const char *reason);38 39void __i915_request_reset(struct i915_request *rq, bool guilty);40 41int __must_check intel_gt_reset_trylock(struct intel_gt *gt, int *srcu);42int __must_check intel_gt_reset_lock_interruptible(struct intel_gt *gt, int *srcu);43void intel_gt_reset_unlock(struct intel_gt *gt, int tag);44 45void intel_gt_set_wedged(struct intel_gt *gt);46bool intel_gt_unset_wedged(struct intel_gt *gt);47int intel_gt_terminally_wedged(struct intel_gt *gt);48 49/*50 * There's no unset_wedged_on_init paired with this one.51 * Once we're wedged on init, there's no going back.52 * Same thing for unset_wedged_on_fini.53 */54void intel_gt_set_wedged_on_init(struct intel_gt *gt);55void intel_gt_set_wedged_on_fini(struct intel_gt *gt);56 57int intel_gt_reset_engine(struct intel_engine_cs *engine);58int intel_gt_reset_all_engines(struct intel_gt *gt);59 60int intel_reset_guc(struct intel_gt *gt);61 62struct intel_wedge_me {63 struct delayed_work work;64 struct intel_gt *gt;65 const char *name;66};67 68void __intel_init_wedge(struct intel_wedge_me *w,69 struct intel_gt *gt,70 long timeout,71 const char *name);72void __intel_fini_wedge(struct intel_wedge_me *w);73 74#define intel_wedge_on_timeout(W, GT, TIMEOUT) \75 for (__intel_init_wedge((W), (GT), (TIMEOUT), __func__); \76 (W)->gt; \77 __intel_fini_wedge((W)))78 79bool intel_has_gpu_reset(const struct intel_gt *gt);80bool intel_has_reset_engine(const struct intel_gt *gt);81 82bool intel_engine_reset_needs_wa_22011802037(struct intel_gt *gt);83 84#endif /* I915_RESET_H */85