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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
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25 #ifndef __I915_GEM_H__
26 #define __I915_GEM_H__
28 #include <linux/bug.h>
29 #include <linux/types.h>
31 #include <drm/drm_drv.h>
33 #include "i915_utils.h"
36 struct drm_i915_gem_object;
37 struct drm_i915_private;
38 struct i915_gem_ww_ctx;
42 void i915_gem_init_early(struct drm_i915_private *i915);
43 void i915_gem_cleanup_early(struct drm_i915_private *i915);
45 void i915_gem_drain_freed_objects(struct drm_i915_private *i915);
46 void i915_gem_drain_workqueue(struct drm_i915_private *i915);
48 struct i915_vma * __must_check
49 i915_gem_object_ggtt_pin_ww(struct drm_i915_gem_object *obj,
50 struct i915_gem_ww_ctx *ww,
51 const struct i915_gtt_view *view,
52 u64 size, u64 alignment, u64 flags);
54 struct i915_vma * __must_check
55 i915_gem_object_ggtt_pin(struct drm_i915_gem_object *obj,
56 const struct i915_gtt_view *view,
57 u64 size, u64 alignment, u64 flags);
59 int i915_gem_object_unbind(struct drm_i915_gem_object *obj,
61 #define I915_GEM_OBJECT_UNBIND_ACTIVE BIT(0)
62 #define I915_GEM_OBJECT_UNBIND_BARRIER BIT(1)
63 #define I915_GEM_OBJECT_UNBIND_TEST BIT(2)
64 #define I915_GEM_OBJECT_UNBIND_VM_TRYLOCK BIT(3)
65 #define I915_GEM_OBJECT_UNBIND_ASYNC BIT(4)
67 void i915_gem_runtime_suspend(struct drm_i915_private *i915);
69 int __must_check i915_gem_init(struct drm_i915_private *i915);
70 void i915_gem_driver_register(struct drm_i915_private *i915);
71 void i915_gem_driver_unregister(struct drm_i915_private *i915);
72 void i915_gem_driver_remove(struct drm_i915_private *i915);
73 void i915_gem_driver_release(struct drm_i915_private *i915);
75 int i915_gem_open(struct drm_i915_private *i915, struct drm_file *file);
77 /* FIXME: All of the below belong somewhere else. */
79 #ifdef CONFIG_DRM_I915_DEBUG_GEM
81 #define GEM_SHOW_DEBUG() drm_debug_enabled(DRM_UT_DRIVER)
83 #ifdef CONFIG_DRM_I915_DEBUG_GEM_ONCE
84 #define __GEM_BUG(cond) BUG()
86 #define __GEM_BUG(cond) \
87 WARN(1, "%s:%d GEM_BUG_ON(%s)\n", __func__, __LINE__, __stringify(cond))
90 #define GEM_BUG_ON(condition) do { if (unlikely((condition))) { \
91 GEM_TRACE_ERR("%s:%d GEM_BUG_ON(%s)\n", \
92 __func__, __LINE__, __stringify(condition)); \
94 __GEM_BUG(condition); \
97 #define GEM_WARN_ON(expr) WARN_ON(expr)
99 #define GEM_DEBUG_WARN_ON(expr) GEM_WARN_ON(expr)
103 #define GEM_SHOW_DEBUG() (0)
105 #define GEM_BUG_ON(expr) BUILD_BUG_ON_INVALID(expr)
106 #define GEM_WARN_ON(expr) ({ unlikely(!!(expr)); })
108 #define GEM_DEBUG_WARN_ON(expr) ({ BUILD_BUG_ON_INVALID(expr); 0; })
111 #if IS_ENABLED(CONFIG_DRM_I915_TRACE_GEM)
112 #define GEM_TRACE(...) trace_printk(__VA_ARGS__)
113 #define GEM_TRACE_ERR(...) do { \
114 pr_err(__VA_ARGS__); \
115 trace_printk(__VA_ARGS__); \
117 #define GEM_TRACE_DUMP() \
118 do { ftrace_dump(DUMP_ALL); __add_taint_for_CI(TAINT_WARN); } while (0)
119 #define GEM_TRACE_DUMP_ON(expr) \
120 do { if (expr) GEM_TRACE_DUMP(); } while (0)
122 #define GEM_TRACE(...) do { } while (0)
123 #define GEM_TRACE_ERR(...) do { } while (0)
124 #define GEM_TRACE_DUMP() do { } while (0)
125 #define GEM_TRACE_DUMP_ON(expr) BUILD_BUG_ON_INVALID(expr)
128 #define I915_GEM_IDLE_TIMEOUT (HZ / 5)
130 #endif /* __I915_GEM_H__ */