2 * Copyright © 2016 Intel Corporation
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:
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
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
25 #ifndef __I915_GEM_H__
26 #define __I915_GEM_H__
28 #include <linux/bug.h>
30 #include <drm/drm_drv.h>
32 #include "i915_utils.h"
34 struct drm_i915_private;
36 #ifdef CONFIG_DRM_I915_DEBUG_GEM
38 #define GEM_SHOW_DEBUG() drm_debug_enabled(DRM_UT_DRIVER)
40 #ifdef CONFIG_DRM_I915_DEBUG_GEM_ONCE
41 #define __GEM_BUG(cond) BUG()
43 #define __GEM_BUG(cond) \
44 WARN(1, "%s:%d GEM_BUG_ON(%s)\n", __func__, __LINE__, __stringify(cond))
47 #define GEM_BUG_ON(condition) do { if (unlikely((condition))) { \
48 GEM_TRACE_ERR("%s:%d GEM_BUG_ON(%s)\n", \
49 __func__, __LINE__, __stringify(condition)); \
51 __GEM_BUG(condition); \
54 #define GEM_WARN_ON(expr) WARN_ON(expr)
56 #define GEM_DEBUG_WARN_ON(expr) GEM_WARN_ON(expr)
60 #define GEM_SHOW_DEBUG() (0)
62 #define GEM_BUG_ON(expr) BUILD_BUG_ON_INVALID(expr)
63 #define GEM_WARN_ON(expr) ({ unlikely(!!(expr)); })
65 #define GEM_DEBUG_WARN_ON(expr) ({ BUILD_BUG_ON_INVALID(expr); 0; })
68 #if IS_ENABLED(CONFIG_DRM_I915_TRACE_GEM)
69 #define GEM_TRACE(...) trace_printk(__VA_ARGS__)
70 #define GEM_TRACE_ERR(...) do { \
71 pr_err(__VA_ARGS__); \
72 trace_printk(__VA_ARGS__); \
74 #define GEM_TRACE_DUMP() \
75 do { ftrace_dump(DUMP_ALL); __add_taint_for_CI(TAINT_WARN); } while (0)
76 #define GEM_TRACE_DUMP_ON(expr) \
77 do { if (expr) GEM_TRACE_DUMP(); } while (0)
79 #define GEM_TRACE(...) do { } while (0)
80 #define GEM_TRACE_ERR(...) do { } while (0)
81 #define GEM_TRACE_DUMP() do { } while (0)
82 #define GEM_TRACE_DUMP_ON(expr) BUILD_BUG_ON_INVALID(expr)
85 #define I915_GEM_IDLE_TIMEOUT (HZ / 5)
87 #endif /* __I915_GEM_H__ */