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

   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 "gt/intel_engine_types.h"
  15
  16 struct drm_i915_private;
  17 struct i915_request;
  18 struct intel_engine_cs;
  19 struct intel_guc;
  20
  21 __printf(4, 5)
  22 void i915_handle_error(struct drm_i915_private *i915,
  23                        intel_engine_mask_t engine_mask,
  24                        unsigned long flags,
  25                        const char *fmt, ...);
  26 #define I915_ERROR_CAPTURE BIT(0)
  27
  28 void i915_clear_error_registers(struct drm_i915_private *i915);
  29
  30 void i915_reset(struct drm_i915_private *i915,
  31                 intel_engine_mask_t stalled_mask,
  32                 const char *reason);
  33 int i915_reset_engine(struct intel_engine_cs *engine,
  34                       const char *reason);
  35
  36 void i915_reset_request(struct i915_request *rq, bool guilty);
  37
  38 int __must_check i915_reset_trylock(struct drm_i915_private *i915);
  39 void i915_reset_unlock(struct drm_i915_private *i915, int tag);
  40
  41 int i915_terminally_wedged(struct drm_i915_private *i915);
  42
  43 bool intel_has_gpu_reset(struct drm_i915_private *i915);
  44 bool intel_has_reset_engine(struct drm_i915_private *i915);
  45
  46 int intel_gpu_reset(struct drm_i915_private *i915,
  47                     intel_engine_mask_t engine_mask);
  48
  49 int intel_reset_guc(struct drm_i915_private *i915);
  50
  51 struct i915_wedge_me {
  52         struct delayed_work work;
  53         struct drm_i915_private *i915;
  54         const char *name;
  55 };
  56
  57 void __i915_init_wedge(struct i915_wedge_me *w,
  58                        struct drm_i915_private *i915,
  59                        long timeout,
  60                        const char *name);
  61 void __i915_fini_wedge(struct i915_wedge_me *w);
  62
  63 #define i915_wedge_on_timeout(W, DEV, TIMEOUT)                          \
  64         for (__i915_init_wedge((W), (DEV), (TIMEOUT), __func__);        \
  65              (W)->i915;                                                 \
  66              __i915_fini_wedge((W)))
  67
  68 #endif /* I915_RESET_H */