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__ */