drm/i915: extract gem/i915_gem_stolen.h from i915_drv.h

It used to be handy that we only had a couple of headers, but over time
i915_drv.h has become unwieldy. Extract declarations to a separate
header file corresponding to the implementation module, clarifying the
modularity of the driver.

Ensure the new header is self-contained, and do so with minimal further
includes, using forward declarations as needed. Include the new header
from i915_drv.h to avoid sprinkling includes all over the place; this
can be changed as a follow-up if necessary.

No functional changes.

Reviewed-by: Chris Wilson <chris@chris-wilson.co.uk>
Signed-off-by: Jani Nikula <jani.nikula@intel.com>
Link: https://patchwork.freedesktop.org/patch/msgid/0141b4e1f1bf2deb65730ce6973863a3a16ab38f.1565271681.git.jani.nikula@intel.com

diff --git a/drivers/gpu/drm/i915/gem/i915_gem_stolen.c b/drivers/gpu/drm/i915/gem/i915_gem_stolen.c
index 639c852..696dea5 100644 (file)
--- a/drivers/gpu/drm/i915/gem/i915_gem_stolen.c
+++ b/drivers/gpu/drm/i915/gem/i915_gem_stolen.c
@@ -11,6 +11,7 @@
 #include <drm/i915_drm.h>
 
 #include "i915_drv.h"
+#include "i915_gem_stolen.h"
 
 /*
  * The BIOS typically reserves some of the system's memory for the exclusive

diff --git a/drivers/gpu/drm/i915/gem/i915_gem_stolen.h b/drivers/gpu/drm/i915/gem/i915_gem_stolen.h
new file mode 100644 (file)
index 0000000..2289644
--- /dev/null
+++ b/drivers/gpu/drm/i915/gem/i915_gem_stolen.h
@@ -0,0 +1,35 @@
+/* SPDX-License-Identifier: MIT */
+/*
+ * Copyright © 2019 Intel Corporation
+ */
+
+#ifndef __I915_GEM_STOLEN_H__
+#define __I915_GEM_STOLEN_H__
+
+#include <linux/types.h>
+
+struct drm_i915_private;
+struct drm_mm_node;
+struct drm_i915_gem_object;
+
+int i915_gem_stolen_insert_node(struct drm_i915_private *dev_priv,
+                               struct drm_mm_node *node, u64 size,
+                               unsigned alignment);
+int i915_gem_stolen_insert_node_in_range(struct drm_i915_private *dev_priv,
+                                        struct drm_mm_node *node, u64 size,
+                                        unsigned alignment, u64 start,
+                                        u64 end);
+void i915_gem_stolen_remove_node(struct drm_i915_private *dev_priv,
+                                struct drm_mm_node *node);
+int i915_gem_init_stolen(struct drm_i915_private *dev_priv);
+void i915_gem_cleanup_stolen(struct drm_i915_private *dev_priv);
+struct drm_i915_gem_object *
+i915_gem_object_create_stolen(struct drm_i915_private *dev_priv,
+                             resource_size_t size);
+struct drm_i915_gem_object *
+i915_gem_object_create_stolen_for_preallocated(struct drm_i915_private *dev_priv,
+                                              resource_size_t stolen_offset,
+                                              resource_size_t gtt_offset,
+                                              resource_size_t size);
+
+#endif /* __I915_GEM_STOLEN_H__ */

diff --git a/drivers/gpu/drm/i915/gt/intel_gt.c b/drivers/gpu/drm/i915/gt/intel_gt.c
index 75d8c5e..c543467 100644 (file)
--- a/drivers/gpu/drm/i915/gt/intel_gt.c
+++ b/drivers/gpu/drm/i915/gt/intel_gt.c
@@ -4,7 +4,6 @@
  */
 
 #include "i915_drv.h"
-
 #include "intel_gt.h"
 #include "intel_gt_pm.h"
 #include "intel_uncore.h"

diff --git a/drivers/gpu/drm/i915/i915_drv.h b/drivers/gpu/drm/i915/i915_drv.h
index 42f611e..3b71115 100644 (file)
--- a/drivers/gpu/drm/i915/i915_drv.h
+++ b/drivers/gpu/drm/i915/i915_drv.h
@@ -70,6 +70,9 @@
 #include "display/intel_frontbuffer.h"
 #include "display/intel_opregion.h"
 
+#include "gem/i915_gem_context_types.h"
+#include "gem/i915_gem_stolen.h"
+
 #include "gt/intel_lrc.h"
 #include "gt/intel_engine.h"
 #include "gt/intel_gt_types.h"
@@ -84,7 +87,6 @@
 #include "intel_wopcm.h"
 
 #include "i915_gem.h"
-#include "gem/i915_gem_context_types.h"
 #include "i915_gem_fence_reg.h"
 #include "i915_gem_gtt.h"
 #include "i915_gpu_error.h"
@@ -2429,27 +2431,6 @@ int __must_check i915_gem_evict_for_node(struct i915_address_space *vm,
                                         unsigned int flags);
 int i915_gem_evict_vm(struct i915_address_space *vm);
 
-/* i915_gem_stolen.c */
-int i915_gem_stolen_insert_node(struct drm_i915_private *dev_priv,
-                               struct drm_mm_node *node, u64 size,
-                               unsigned alignment);
-int i915_gem_stolen_insert_node_in_range(struct drm_i915_private *dev_priv,
-                                        struct drm_mm_node *node, u64 size,
-                                        unsigned alignment, u64 start,
-                                        u64 end);
-void i915_gem_stolen_remove_node(struct drm_i915_private *dev_priv,
-                                struct drm_mm_node *node);
-int i915_gem_init_stolen(struct drm_i915_private *dev_priv);
-void i915_gem_cleanup_stolen(struct drm_i915_private *dev_priv);
-struct drm_i915_gem_object *
-i915_gem_object_create_stolen(struct drm_i915_private *dev_priv,
-                             resource_size_t size);
-struct drm_i915_gem_object *
-i915_gem_object_create_stolen_for_preallocated(struct drm_i915_private *dev_priv,
-                                              resource_size_t stolen_offset,
-                                              resource_size_t gtt_offset,
-                                              resource_size_t size);
-
 /* i915_gem_internal.c */
 struct drm_i915_gem_object *
 i915_gem_object_create_internal(struct drm_i915_private *dev_priv,