drm/i915: split out gem/i915_gem_domain.h from i915_drv.h

We already have the gem/i915_gem_domain.c file.

Cc: Tvrtko Ursulin <tvrtko.ursulin@linux.intel.com>
Cc: Daniel Vetter <daniel.vetter@ffwll.ch>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Acked-by: Tvrtko Ursulin <tvrtko.ursulin@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/8208321ad09f1fb0d1a61dc0f2449cce8b23a9b9.1644507885.git.jani.nikula@intel.com

drivers/gpu/drm/i915/display/intel_dpt.c

@@ -3,11 +3,13 @@
  * Copyright © 2021 Intel Corporation
  */
 
+#include "gem/i915_gem_domain.h"
+#include "gt/gen8_ppgtt.h"
+
 #include "i915_drv.h"
 #include "intel_display_types.h"
 #include "intel_dpt.h"
 #include "intel_fb.h"
-#include "gt/gen8_ppgtt.h"
 
 struct i915_dpt {
 	struct i915_address_space vm;

drivers/gpu/drm/i915/display/intel_fb_pin.c

@@ -7,6 +7,7 @@
  * DOC: display pinning helpers
  */
 
+#include "gem/i915_gem_domain.h"
 #include "gem/i915_gem_object.h"
 
 #include "i915_drv.h"

drivers/gpu/drm/i915/gem/i915_gem_domain.c

@@ -9,12 +9,13 @@
 
 #include "i915_drv.h"
 #include "i915_gem_clflush.h"
+#include "i915_gem_domain.h"
 #include "i915_gem_gtt.h"
 #include "i915_gem_ioctls.h"
-#include "i915_gem_object.h"
-#include "i915_vma.h"
 #include "i915_gem_lmem.h"
 #include "i915_gem_mman.h"
+#include "i915_gem_object.h"
+#include "i915_vma.h"
 
 static bool gpu_write_needs_clflush(struct drm_i915_gem_object *obj)
 {

drivers/gpu/drm/i915/gem/i915_gem_domain.h

+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2022 Intel Corporation
+ */
+
+#ifndef __I915_GEM_DOMAIN_H__
+#define __I915_GEM_DOMAIN_H__
+
+struct drm_i915_gem_object;
+enum i915_cache_level;
+
+int i915_gem_object_set_cache_level(struct drm_i915_gem_object *obj,
+				    enum i915_cache_level cache_level);
+
+#endif /* __I915_GEM_DOMAIN_H__ */

drivers/gpu/drm/i915/i915_drv.h

@@ -1618,9 +1618,6 @@ void i915_gem_driver_release(struct drm_i915_private *dev_priv);
 
 int i915_gem_open(struct drm_i915_private *i915, struct drm_file *file);
 
-int i915_gem_object_set_cache_level(struct drm_i915_gem_object *obj,
-				    enum i915_cache_level cache_level);
-
 static inline struct i915_address_space *
 i915_gem_vm_lookup(struct drm_i915_file_private *file_priv, u32 id)
 {