drivers/gpu/drm/i915/i915_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 struct drm_i915_private;
  15 struct intel_engine_cs;
  16 struct intel_guc;
  17
  18 __printf(4, 5)
  19 void i915_handle_error(struct drm_i915_private *i915,
  20                        u32 engine_mask,
  21                        unsigned long flags,
  22                        const char *fmt, ...);
  23 #define I915_ERROR_CAPTURE BIT(0)
  24
  25 void i915_clear_error_registers(struct drm_i915_private *i915);
  26
  27 void i915_reset(struct drm_i915_private *i915,
  28                 unsigned int stalled_mask,
  29                 const char *reason);
  30 int i915_reset_engine(struct intel_engine_cs *engine,
  31                       const char *reason);
  32
  33 void i915_reset_request(struct i915_request *rq, bool guilty);
  34 bool i915_reset_flush(struct drm_i915_private *i915);
  35
  36 int __must_check i915_reset_trylock(struct drm_i915_private *i915);
  37 void i915_reset_unlock(struct drm_i915_private *i915, int tag);
  38
  39 int i915_terminally_wedged(struct drm_i915_private *i915);
  40
  41 bool intel_has_gpu_reset(struct drm_i915_private *i915);
  42 bool intel_has_reset_engine(struct drm_i915_private *i915);
  43
  44 int intel_gpu_reset(struct drm_i915_private *i915, u32 engine_mask);
  45
  46 int intel_reset_guc(struct drm_i915_private *i915);
  47
  48 struct i915_wedge_me {
  49         struct delayed_work work;
  50         struct drm_i915_private *i915;
  51         const char *name;
  52 };
  53
  54 void __i915_init_wedge(struct i915_wedge_me *w,
  55                        struct drm_i915_private *i915,
  56                        long timeout,
  57                        const char *name);
  58 void __i915_fini_wedge(struct i915_wedge_me *w);
  59
  60 #define i915_wedge_on_timeout(W, DEV, TIMEOUT)                          \
  61         for (__i915_init_wedge((W), (DEV), (TIMEOUT), __func__);        \
  62              (W)->i915;                                                 \
  63              __i915_fini_wedge((W)))
  64
  65 #endif /* I915_RESET_H */