15ca02815Sjsg /* SPDX-License-Identifier: MIT */ 2c349dbc7Sjsg /* 3c349dbc7Sjsg * Copyright © 2008-2018 Intel Corporation 4c349dbc7Sjsg */ 5c349dbc7Sjsg 6c349dbc7Sjsg #ifndef I915_RESET_H 7c349dbc7Sjsg #define I915_RESET_H 8c349dbc7Sjsg 9c349dbc7Sjsg #include <linux/compiler.h> 10c349dbc7Sjsg #include <linux/types.h> 11c349dbc7Sjsg #include <linux/srcu.h> 12c349dbc7Sjsg 13c349dbc7Sjsg #include "intel_engine_types.h" 14c349dbc7Sjsg #include "intel_reset_types.h" 15c349dbc7Sjsg 16c349dbc7Sjsg struct i915_request; 17c349dbc7Sjsg struct intel_engine_cs; 18c349dbc7Sjsg struct intel_gt; 19c349dbc7Sjsg struct intel_guc; 20c349dbc7Sjsg 21c349dbc7Sjsg void intel_gt_init_reset(struct intel_gt *gt); 22c349dbc7Sjsg void intel_gt_fini_reset(struct intel_gt *gt); 23c349dbc7Sjsg 24c349dbc7Sjsg __printf(4, 5) 25c349dbc7Sjsg void intel_gt_handle_error(struct intel_gt *gt, 26c349dbc7Sjsg intel_engine_mask_t engine_mask, 27c349dbc7Sjsg unsigned long flags, 28c349dbc7Sjsg const char *fmt, ...); 29c349dbc7Sjsg #define I915_ERROR_CAPTURE BIT(0) 30c349dbc7Sjsg 31c349dbc7Sjsg void intel_gt_reset(struct intel_gt *gt, 32c349dbc7Sjsg intel_engine_mask_t stalled_mask, 33c349dbc7Sjsg const char *reason); 34c349dbc7Sjsg int intel_engine_reset(struct intel_engine_cs *engine, 35c349dbc7Sjsg const char *reason); 365ca02815Sjsg int __intel_engine_reset_bh(struct intel_engine_cs *engine, 375ca02815Sjsg const char *reason); 38c349dbc7Sjsg 39c349dbc7Sjsg void __i915_request_reset(struct i915_request *rq, bool guilty); 40c349dbc7Sjsg 41c349dbc7Sjsg int __must_check intel_gt_reset_trylock(struct intel_gt *gt, int *srcu); 42f005ef32Sjsg int __must_check intel_gt_reset_lock_interruptible(struct intel_gt *gt, int *srcu); 43c349dbc7Sjsg void intel_gt_reset_unlock(struct intel_gt *gt, int tag); 44c349dbc7Sjsg 45c349dbc7Sjsg void intel_gt_set_wedged(struct intel_gt *gt); 46c349dbc7Sjsg bool intel_gt_unset_wedged(struct intel_gt *gt); 47c349dbc7Sjsg int intel_gt_terminally_wedged(struct intel_gt *gt); 48c349dbc7Sjsg 49c349dbc7Sjsg /* 50c349dbc7Sjsg * There's no unset_wedged_on_init paired with this one. 51c349dbc7Sjsg * Once we're wedged on init, there's no going back. 52ad8b1aafSjsg * Same thing for unset_wedged_on_fini. 53c349dbc7Sjsg */ 54c349dbc7Sjsg void intel_gt_set_wedged_on_init(struct intel_gt *gt); 55ad8b1aafSjsg void intel_gt_set_wedged_on_fini(struct intel_gt *gt); 56c349dbc7Sjsg 57c349dbc7Sjsg int __intel_gt_reset(struct intel_gt *gt, intel_engine_mask_t engine_mask); 58c349dbc7Sjsg 59c349dbc7Sjsg int intel_reset_guc(struct intel_gt *gt); 60c349dbc7Sjsg 61c349dbc7Sjsg struct intel_wedge_me { 62c349dbc7Sjsg struct delayed_work work; 63c349dbc7Sjsg struct intel_gt *gt; 64c349dbc7Sjsg const char *name; 65c349dbc7Sjsg }; 66c349dbc7Sjsg 67c349dbc7Sjsg void __intel_init_wedge(struct intel_wedge_me *w, 68c349dbc7Sjsg struct intel_gt *gt, 69c349dbc7Sjsg long timeout, 70c349dbc7Sjsg const char *name); 71c349dbc7Sjsg void __intel_fini_wedge(struct intel_wedge_me *w); 72c349dbc7Sjsg 73c349dbc7Sjsg #define intel_wedge_on_timeout(W, GT, TIMEOUT) \ 74c349dbc7Sjsg for (__intel_init_wedge((W), (GT), (TIMEOUT), __func__); \ 75c349dbc7Sjsg (W)->gt; \ 76c349dbc7Sjsg __intel_fini_wedge((W))) 77c349dbc7Sjsg 78c349dbc7Sjsg bool intel_has_gpu_reset(const struct intel_gt *gt); 79c349dbc7Sjsg bool intel_has_reset_engine(const struct intel_gt *gt); 80c349dbc7Sjsg 81*176435d3Sjsg bool intel_engine_reset_needs_wa_22011802037(struct intel_gt *gt); 82*176435d3Sjsg 83c349dbc7Sjsg #endif /* I915_RESET_H */ 84