drm/i915: split out i915_gem.c declarations to i915_gem.h

Declutter i915_drv.h by splitting out the declarations for
i915_gem.[ch].

Add a fixme comment about the rest of the stuff in i915_gem.h that
doesn't really belong there.
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Reviewed-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/82a353c5c4b52df2354f9413b547c7619a45d92d.1662390010.git.jani.nikula@intel.com

drivers/gpu/drm/i915/i915_drv.h

@@ -975,42 +975,6 @@ IS_SUBPLATFORM(const struct drm_i915_private *i915,
 
 #define HAS_ONE_EU_PER_FUSE_BIT(i915)	(INTEL_INFO(i915)->has_one_eu_per_fuse_bit)
 
-/* i915_gem.c */
-void i915_gem_init_early(struct drm_i915_private *dev_priv);
-void i915_gem_cleanup_early(struct drm_i915_private *dev_priv);
-
-void i915_gem_drain_freed_objects(struct drm_i915_private *i915);
-void i915_gem_drain_workqueue(struct drm_i915_private *i915);
-
-struct i915_vma * __must_check
-i915_gem_object_ggtt_pin_ww(struct drm_i915_gem_object *obj,
-			    struct i915_gem_ww_ctx *ww,
-			    const struct i915_ggtt_view *view,
-			    u64 size, u64 alignment, u64 flags);
-
-struct i915_vma * __must_check
-i915_gem_object_ggtt_pin(struct drm_i915_gem_object *obj,
-			 const struct i915_ggtt_view *view,
-			 u64 size, u64 alignment, u64 flags);
-
-int i915_gem_object_unbind(struct drm_i915_gem_object *obj,
-			   unsigned long flags);
-#define I915_GEM_OBJECT_UNBIND_ACTIVE BIT(0)
-#define I915_GEM_OBJECT_UNBIND_BARRIER BIT(1)
-#define I915_GEM_OBJECT_UNBIND_TEST BIT(2)
-#define I915_GEM_OBJECT_UNBIND_VM_TRYLOCK BIT(3)
-#define I915_GEM_OBJECT_UNBIND_ASYNC BIT(4)
-
-void i915_gem_runtime_suspend(struct drm_i915_private *dev_priv);
-
-int __must_check i915_gem_init(struct drm_i915_private *dev_priv);
-void i915_gem_driver_register(struct drm_i915_private *i915);
-void i915_gem_driver_unregister(struct drm_i915_private *i915);
-void i915_gem_driver_remove(struct drm_i915_private *dev_priv);
-void i915_gem_driver_release(struct drm_i915_private *dev_priv);
-
-int i915_gem_open(struct drm_i915_private *i915, struct drm_file *file);
-
 /* intel_device_info.c */
 static inline struct intel_device_info *
 mkwrite_device_info(struct drm_i915_private *dev_priv)

drivers/gpu/drm/i915/i915_gem.h

@@ -26,12 +26,55 @@
 #define __I915_GEM_H__
 
 #include <linux/bug.h>
+#include <linux/types.h>
 
 #include <drm/drm_drv.h>
 
 #include "i915_utils.h"
 
+struct drm_file;
+struct drm_i915_gem_object;
 struct drm_i915_private;
+struct i915_gem_ww_ctx;
+struct i915_ggtt_view;
+struct i915_vma;
+
+void i915_gem_init_early(struct drm_i915_private *i915);
+void i915_gem_cleanup_early(struct drm_i915_private *i915);
+
+void i915_gem_drain_freed_objects(struct drm_i915_private *i915);
+void i915_gem_drain_workqueue(struct drm_i915_private *i915);
+
+struct i915_vma * __must_check
+i915_gem_object_ggtt_pin_ww(struct drm_i915_gem_object *obj,
+			    struct i915_gem_ww_ctx *ww,
+			    const struct i915_ggtt_view *view,
+			    u64 size, u64 alignment, u64 flags);
+
+struct i915_vma * __must_check
+i915_gem_object_ggtt_pin(struct drm_i915_gem_object *obj,
+			 const struct i915_ggtt_view *view,
+			 u64 size, u64 alignment, u64 flags);
+
+int i915_gem_object_unbind(struct drm_i915_gem_object *obj,
+			   unsigned long flags);
+#define I915_GEM_OBJECT_UNBIND_ACTIVE BIT(0)
+#define I915_GEM_OBJECT_UNBIND_BARRIER BIT(1)
+#define I915_GEM_OBJECT_UNBIND_TEST BIT(2)
+#define I915_GEM_OBJECT_UNBIND_VM_TRYLOCK BIT(3)
+#define I915_GEM_OBJECT_UNBIND_ASYNC BIT(4)
+
+void i915_gem_runtime_suspend(struct drm_i915_private *i915);
+
+int __must_check i915_gem_init(struct drm_i915_private *i915);
+void i915_gem_driver_register(struct drm_i915_private *i915);
+void i915_gem_driver_unregister(struct drm_i915_private *i915);
+void i915_gem_driver_remove(struct drm_i915_private *i915);
+void i915_gem_driver_release(struct drm_i915_private *i915);
+
+int i915_gem_open(struct drm_i915_private *i915, struct drm_file *file);
+
+/* FIXME: All of the below belong somewhere else. */
 
 #ifdef CONFIG_DRM_I915_DEBUG_GEM