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 pr_err("%s:%d GEM_BUG_ON(%s)\n", \ 33 __func__, __LINE__, __stringify(condition)); \ 34 GEM_TRACE("%s:%d GEM_BUG_ON(%s)\n", \ 35 __func__, __LINE__, __stringify(condition)); \ 36 BUG(); \ 37 } \ 38 } while(0) 39 #define GEM_WARN_ON(expr) WARN_ON(expr) 40 41 #define GEM_DEBUG_DECL(var) var 42 #define GEM_DEBUG_EXEC(expr) expr 43 #define GEM_DEBUG_BUG_ON(expr) GEM_BUG_ON(expr) 44 45 #else 46 #define GEM_BUG_ON(expr) BUILD_BUG_ON_INVALID(expr) 47 #define GEM_WARN_ON(expr) (BUILD_BUG_ON_INVALID(expr), 0) 48 49 #define GEM_DEBUG_DECL(var) 50 #define GEM_DEBUG_EXEC(expr) do { } while (0) 51 #define GEM_DEBUG_BUG_ON(expr) 52 #endif 53 54 #if IS_ENABLED(CONFIG_DRM_I915_TRACE_GEM) 55 #define GEM_TRACE(...) trace_printk(__VA_ARGS__) 56 #else 57 #define GEM_TRACE(...) do { } while (0) 58 #endif 59 60 #define I915_NUM_ENGINES 8 61 62 #endif /* __I915_GEM_H__ */ 63