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1/*2 * Copyright © 2016 Intel Corporation3 *4 * Permission is hereby granted, free of charge, to any person obtaining a5 * copy of this software and associated documentation files (the "Software"),6 * to deal in the Software without restriction, including without limitation7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,8 * and/or sell copies of the Software, and to permit persons to whom the9 * Software is furnished to do so, subject to the following conditions:10 *11 * The above copyright notice and this permission notice (including the next12 * paragraph) shall be included in all copies or substantial portions of the13 * Software.14 *15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR16 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,17 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL18 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER19 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING20 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS21 * IN THE SOFTWARE.22 *23 */24 25#ifndef __I915_GEM_H__26#define __I915_GEM_H__27 28#include <linux/bug.h>29#include <linux/types.h>30 31#include <drm/drm_drv.h>32 33#include "i915_utils.h"34 35struct drm_file;36struct drm_i915_gem_object;37struct drm_i915_private;38struct i915_gem_ww_ctx;39struct i915_gtt_view;40struct i915_vma;41 42#define I915_GEM_GPU_DOMAINS \43 (I915_GEM_DOMAIN_RENDER | \44 I915_GEM_DOMAIN_SAMPLER | \45 I915_GEM_DOMAIN_COMMAND | \46 I915_GEM_DOMAIN_INSTRUCTION | \47 I915_GEM_DOMAIN_VERTEX)48 49void i915_gem_init_early(struct drm_i915_private *i915);50void i915_gem_cleanup_early(struct drm_i915_private *i915);51 52void i915_gem_drain_freed_objects(struct drm_i915_private *i915);53void i915_gem_drain_workqueue(struct drm_i915_private *i915);54 55struct i915_vma * __must_check56i915_gem_object_ggtt_pin_ww(struct drm_i915_gem_object *obj,57 struct i915_gem_ww_ctx *ww,58 const struct i915_gtt_view *view,59 u64 size, u64 alignment, u64 flags);60 61struct i915_vma * __must_check62i915_gem_object_ggtt_pin(struct drm_i915_gem_object *obj,63 const struct i915_gtt_view *view,64 u64 size, u64 alignment, u64 flags);65 66int i915_gem_object_unbind(struct drm_i915_gem_object *obj,67 unsigned long flags);68#define I915_GEM_OBJECT_UNBIND_ACTIVE BIT(0)69#define I915_GEM_OBJECT_UNBIND_BARRIER BIT(1)70#define I915_GEM_OBJECT_UNBIND_TEST BIT(2)71#define I915_GEM_OBJECT_UNBIND_VM_TRYLOCK BIT(3)72#define I915_GEM_OBJECT_UNBIND_ASYNC BIT(4)73 74void i915_gem_runtime_suspend(struct drm_i915_private *i915);75 76int __must_check i915_gem_init(struct drm_i915_private *i915);77void i915_gem_driver_register(struct drm_i915_private *i915);78void i915_gem_driver_unregister(struct drm_i915_private *i915);79void i915_gem_driver_remove(struct drm_i915_private *i915);80void i915_gem_driver_release(struct drm_i915_private *i915);81 82int i915_gem_open(struct drm_i915_private *i915, struct drm_file *file);83 84/* FIXME: All of the below belong somewhere else. */85 86#ifdef CONFIG_DRM_I915_DEBUG_GEM87 88#define GEM_SHOW_DEBUG() drm_debug_enabled(DRM_UT_DRIVER)89 90#ifdef CONFIG_DRM_I915_DEBUG_GEM_ONCE91#define __GEM_BUG(cond) BUG()92#else93#define __GEM_BUG(cond) \94 WARN(1, "%s:%d GEM_BUG_ON(%s)\n", __func__, __LINE__, __stringify(cond))95#endif96 97#define GEM_BUG_ON(condition) do { if (unlikely((condition))) { \98 GEM_TRACE_ERR("%s:%d GEM_BUG_ON(%s)\n", \99 __func__, __LINE__, __stringify(condition)); \100 GEM_TRACE_DUMP(); \101 __GEM_BUG(condition); \102 } \103 } while(0)104#define GEM_WARN_ON(expr) WARN_ON(expr)105 106#define GEM_DEBUG_WARN_ON(expr) GEM_WARN_ON(expr)107 108#else109 110#define GEM_SHOW_DEBUG() (0)111 112#define GEM_BUG_ON(expr) BUILD_BUG_ON_INVALID(expr)113#define GEM_WARN_ON(expr) ({ unlikely(!!(expr)); })114 115#define GEM_DEBUG_WARN_ON(expr) ({ BUILD_BUG_ON_INVALID(expr); 0; })116#endif117 118#if IS_ENABLED(CONFIG_DRM_I915_TRACE_GEM)119#define GEM_TRACE(...) trace_printk(__VA_ARGS__)120#define GEM_TRACE_ERR(...) do { \121 pr_err(__VA_ARGS__); \122 trace_printk(__VA_ARGS__); \123} while (0)124#define GEM_TRACE_DUMP() \125 do { ftrace_dump(DUMP_ALL); __add_taint_for_CI(TAINT_WARN); } while (0)126#define GEM_TRACE_DUMP_ON(expr) \127 do { if (expr) GEM_TRACE_DUMP(); } while (0)128#else129#define GEM_TRACE(...) do { } while (0)130#define GEM_TRACE_ERR(...) do { } while (0)131#define GEM_TRACE_DUMP() do { } while (0)132#define GEM_TRACE_DUMP_ON(expr) BUILD_BUG_ON_INVALID(expr)133#endif134 135#define I915_GEM_IDLE_TIMEOUT (HZ / 5)136 137#endif /* __I915_GEM_H__ */138