1/* SPDX-License-Identifier: MIT */ 2/* 3 * Copyright �� 2008-2018 Intel Corporation 4 */ 5 6#ifndef I915_RESET_H 7#define I915_RESET_H 8 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(struct intel_gt *gt, intel_engine_mask_t engine_mask); 58 59int intel_reset_guc(struct intel_gt *gt); 60 61struct intel_wedge_me { 62 struct delayed_work work; 63 struct intel_gt *gt; 64 const char *name; 65}; 66 67void __intel_init_wedge(struct intel_wedge_me *w, 68 struct intel_gt *gt, 69 long timeout, 70 const char *name); 71void __intel_fini_wedge(struct intel_wedge_me *w); 72 73#define intel_wedge_on_timeout(W, GT, TIMEOUT) \ 74 for (__intel_init_wedge((W), (GT), (TIMEOUT), __func__); \ 75 (W)->gt; \ 76 __intel_fini_wedge((W))) 77 78bool intel_has_gpu_reset(const struct intel_gt *gt); 79bool intel_has_reset_engine(const struct intel_gt *gt); 80 81bool intel_engine_reset_needs_wa_22011802037(struct intel_gt *gt); 82 83#endif /* I915_RESET_H */ 84