drivers/gpu/drm/i915/i915_gem.h

   1 /*
   2  * Copyright © 2016 Intel Corporation
   3  *
   4  * Permission is hereby granted, free of charge, to any person obtaining a
   5  * copy of this software and associated documentation files (the "Software"),
   6  * to deal in the Software without restriction, including without limitation
   7  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
   8  * and/or sell copies of the Software, and to permit persons to whom the
   9  * Software is furnished to do so, subject to the following conditions:
  10  *
  11  * The above copyright notice and this permission notice (including the next
  12  * paragraph) shall be included in all copies or substantial portions of the
  13  * Software.
  14  *
  15  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
  16  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
  17  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
  18  * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
  19  * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
  20  * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
  21  * IN THE SOFTWARE.
  22  *
  23  */
  24
  25 #ifndef __I915_GEM_H__
  26 #define __I915_GEM_H__
  27
  28 #include <linux/bug.h>
  29
  30 #ifdef CONFIG_DRM_I915_DEBUG_GEM
  31 #define GEM_BUG_ON(condition) do { if (unlikely((condition))) { \
  32                 printk(KERN_ERR "GEM_BUG_ON(%s)\n", __stringify(condition)); \
  33                 BUG(); \
  34                 } \
  35         } while(0)
  36 #define GEM_WARN_ON(expr) WARN_ON(expr)
  37
  38 #define GEM_DEBUG_DECL(var) var
  39 #define GEM_DEBUG_EXEC(expr) expr
  40 #define GEM_DEBUG_BUG_ON(expr) GEM_BUG_ON(expr)
  41
  42 #else
  43 #define GEM_BUG_ON(expr) BUILD_BUG_ON_INVALID(expr)
  44 #define GEM_WARN_ON(expr) (BUILD_BUG_ON_INVALID(expr), 0)
  45
  46 #define GEM_DEBUG_DECL(var)
  47 #define GEM_DEBUG_EXEC(expr) do { } while (0)
  48 #define GEM_DEBUG_BUG_ON(expr)
  49 #endif
  50
  51 #if IS_ENABLED(CONFIG_DRM_I915_TRACE_GEM)
  52 #define GEM_TRACE(...) trace_printk(__VA_ARGS__)
  53 #else
  54 #define GEM_TRACE(...) do { } while (0)
  55 #endif
  56
  57 #define I915_NUM_ENGINES 5
  58
  59 #endif /* __I915_GEM_H__ */