root/drivers/gpu/drm/i915/gt/intel_reset.h

INCLUDED FROM

DEFINITIONS

1. __intel_reset_failed

   1 /*
   2  * SPDX-License-Identifier: MIT
   3  *
   4  * Copyright © 2008-2018 Intel Corporation
   5  */
   6 
   7 #ifndef I915_RESET_H
   8 #define I915_RESET_H
   9 
  10 #include <linux/compiler.h>
  11 #include <linux/types.h>
  12 #include <linux/srcu.h>
  13 
  14 #include "intel_engine_types.h"
  15 #include "intel_reset_types.h"
  16 
  17 struct drm_i915_private;
  18 struct i915_request;
  19 struct intel_engine_cs;
  20 struct intel_gt;
  21 struct intel_guc;
  22 
  23 void intel_gt_init_reset(struct intel_gt *gt);
  24 void intel_gt_fini_reset(struct intel_gt *gt);
  25 
  26 __printf(4, 5)
  27 void intel_gt_handle_error(struct intel_gt *gt,
  28                            intel_engine_mask_t engine_mask,
  29                            unsigned long flags,
  30                            const char *fmt, ...);
  31 #define I915_ERROR_CAPTURE BIT(0)
  32 
  33 void intel_gt_reset(struct intel_gt *gt,
  34                     intel_engine_mask_t stalled_mask,
  35                     const char *reason);
  36 int intel_engine_reset(struct intel_engine_cs *engine,
  37                        const char *reason);
  38 
  39 void __i915_request_reset(struct i915_request *rq, bool guilty);
  40 
  41 int __must_check intel_gt_reset_trylock(struct intel_gt *gt, int *srcu);
  42 void intel_gt_reset_unlock(struct intel_gt *gt, int tag);
  43 
  44 void intel_gt_set_wedged(struct intel_gt *gt);
  45 bool intel_gt_unset_wedged(struct intel_gt *gt);
  46 int intel_gt_terminally_wedged(struct intel_gt *gt);
  47 
  48 int __intel_gt_reset(struct intel_gt *gt, intel_engine_mask_t engine_mask);
  49 
  50 int intel_reset_guc(struct intel_gt *gt);
  51 
  52 struct intel_wedge_me {
  53         struct delayed_work work;
  54         struct intel_gt *gt;
  55         const char *name;
  56 };
  57 
  58 void __intel_init_wedge(struct intel_wedge_me *w,
  59                         struct intel_gt *gt,
  60                         long timeout,
  61                         const char *name);
  62 void __intel_fini_wedge(struct intel_wedge_me *w);
  63 
  64 #define intel_wedge_on_timeout(W, GT, TIMEOUT)                          \
  65         for (__intel_init_wedge((W), (GT), (TIMEOUT), __func__);        \
  66              (W)->gt;                                                   \
  67              __intel_fini_wedge((W)))
  68 
  69 static inline bool __intel_reset_failed(const struct intel_reset *reset)
  70 {
  71         return unlikely(test_bit(I915_WEDGED, &reset->flags));
  72 }
  73 
  74 bool intel_has_gpu_reset(struct drm_i915_private *i915);
  75 bool intel_has_reset_engine(struct drm_i915_private *i915);
  76 
  77 #endif /* I915_RESET_H */