drm: Extract drm_prime.h

Plus a little bit more documentation.

v2: Untangle the missing forward decls to make drm_prime|gem.h
free-standing.

Reviewed-by: Gustavo Padovan <gustavo.padovan@collabora.com>
Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/20170308141257.12119-3-daniel.vetter@ffwll.ch

diff --git a/Documentation/gpu/drm-mm.rst b/Documentation/gpu/drm-mm.rst
index fd35998acefc1d96ee39013827d202eb472b6625..d7a29d41789f03541ad89ef8ce97cae36a02ad12 100644 (file)
--- a/Documentation/gpu/drm-mm.rst
+++ b/Documentation/gpu/drm-mm.rst
@@ -449,6 +449,9 @@ PRIME Helper Functions
 PRIME Function References
 -------------------------
 
+.. kernel-doc:: include/drm/drm_prime.h
+   :internal:
+
 .. kernel-doc:: drivers/gpu/drm/drm_prime.c
    :export:
 

diff --git a/drivers/gpu/drm/drm_prime.c b/drivers/gpu/drm/drm_prime.c
index 866b294e7c6137d7ede59c55eb95ad9ec9849879..9fb65b736a90f132591e3b1722fd8f533696e3f6 100644 (file)
--- a/drivers/gpu/drm/drm_prime.c
+++ b/drivers/gpu/drm/drm_prime.c
@@ -29,8 +29,9 @@
 #include <linux/export.h>
 #include <linux/dma-buf.h>
 #include <linux/rbtree.h>
-#include <drm/drmP.h>
+#include <drm/drm_prime.h>
 #include <drm/drm_gem.h>
+#include <drm/drmP.h>
 
 #include "drm_internal.h"
 

diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 6105c050d7bcdbb3cc23b2a14be946346680e7a0..5f829d2372da2ec6f303f803bedfd210d4c0ea9a 100644 (file)
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -51,13 +51,13 @@
 #include <linux/platform_device.h>
 #include <linux/poll.h>
 #include <linux/ratelimit.h>
-#include <linux/rbtree.h>
 #include <linux/sched.h>
 #include <linux/slab.h>
 #include <linux/types.h>
 #include <linux/vmalloc.h>
 #include <linux/workqueue.h>
 #include <linux/dma-fence.h>
+#include <linux/module.h>
 
 #include <asm/mman.h>
 #include <asm/pgalloc.h>
@@ -75,8 +75,8 @@
 #include <drm/drm_mm.h>
 #include <drm/drm_os_linux.h>
 #include <drm/drm_sarea.h>
-#include <drm/drm_vma_manager.h>
 #include <drm/drm_drv.h>
+#include <drm/drm_prime.h>
 
 struct module;
 
@@ -89,6 +89,7 @@ struct drm_dma_handle;
 struct drm_gem_object;
 struct drm_master;
 struct drm_vblank_crtc;
+struct drm_vma_offset_manager;
 
 struct device_node;
 struct videomode;
@@ -370,12 +371,6 @@ struct drm_pending_event {
                      we deliver the event, for tracing only */
 };
 
-struct drm_prime_file_private {
-       struct mutex lock;
-       struct rb_root dmabufs;
-       struct rb_root handles;
-};
-
 /** File private data */
 struct drm_file {
        unsigned authenticated :1;
@@ -759,27 +754,6 @@ static inline int drm_debugfs_remove_files(const struct drm_info_list *files,
 }
 #endif
 
-struct dma_buf_export_info;
-
-extern struct dma_buf *drm_gem_prime_export(struct drm_device *dev,
-                                           struct drm_gem_object *obj,
-                                           int flags);
-extern int drm_gem_prime_handle_to_fd(struct drm_device *dev,
-               struct drm_file *file_priv, uint32_t handle, uint32_t flags,
-               int *prime_fd);
-extern struct drm_gem_object *drm_gem_prime_import(struct drm_device *dev,
-               struct dma_buf *dma_buf);
-extern int drm_gem_prime_fd_to_handle(struct drm_device *dev,
-               struct drm_file *file_priv, int prime_fd, uint32_t *handle);
-struct dma_buf *drm_gem_dmabuf_export(struct drm_device *dev,
-                                     struct dma_buf_export_info *exp_info);
-extern void drm_gem_dmabuf_release(struct dma_buf *dma_buf);
-
-extern int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, struct page **pages,
-                                           dma_addr_t *addrs, int max_pages);
-extern struct sg_table *drm_prime_pages_to_sg(struct page **pages, unsigned int nr_pages);
-extern void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg);
-
 
 extern struct drm_dma_handle *drm_pci_alloc(struct drm_device *dev, size_t size,
                                            size_t align);

diff --git a/include/drm/drm_gem.h b/include/drm/drm_gem.h
index 3b2a28f7f49fbd5174a13e2c9daf86a1cf16be50..b9ade75ecd82ebd9502176187af40a68d5c47548 100644 (file)
--- a/include/drm/drm_gem.h
+++ b/include/drm/drm_gem.h
@@ -34,6 +34,10 @@
  * OTHER DEALINGS IN THE SOFTWARE.
  */
 
+#include <linux/kref.h>
+
+#include <drm/drm_vma_manager.h>
+
 /**
  * struct drm_gem_object - GEM buffer object
  *

diff --git a/include/drm/drm_prime.h b/include/drm/drm_prime.h
new file mode 100644 (file)
index 0000000..77ceca7
--- /dev/null
+++ b/include/drm/drm_prime.h
@@ -0,0 +1,79 @@
+/*
+ * Copyright © 2012 Red Hat
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.
+ * Copyright 2000 VA Linux Systems, Inc., Sunnyvale, California.
+ * Copyright (c) 2009-2010, Code Aurora Forum.
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining a
+ * copy of this software and associated documentation files (the "Software"),
+ * to deal in the Software without restriction, including without limitation
+ * the rights to use, copy, modify, merge, publish, distribute, sublicense,
+ * and/or sell copies of the Software, and to permit persons to whom the
+ * Software is furnished to do so, subject to the following conditions:
+ *
+ * The above copyright notice and this permission notice (including the next
+ * paragraph) shall be included in all copies or substantial portions of the
+ * Software.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+ * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+ * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
+ * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+ * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
+ * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS
+ * IN THE SOFTWARE.
+ *
+ * Authors:
+ *      Dave Airlie <airlied@redhat.com>
+ *      Rob Clark <rob.clark@linaro.org>
+ *
+ */
+
+#ifndef __DRM_PRIME_H__
+#define __DRM_PRIME_H__
+
+#include <linux/mutex.h>
+#include <linux/rbtree.h>
+
+/**
+ * struct drm_prime_file_private - per-file tracking for PRIME
+ *
+ * This just contains the internal &struct dma_buf and handle caches for each
+ * &struct drm_file used by the PRIME core code.
+ */
+
+struct drm_prime_file_private {
+/* private: */
+       struct mutex lock;
+       struct rb_root dmabufs;
+       struct rb_root handles;
+};
+
+struct dma_buf_export_info;
+struct dma_buf;
+
+struct drm_device;
+struct drm_gem_object;
+struct drm_file;
+
+extern struct dma_buf *drm_gem_prime_export(struct drm_device *dev,
+                                           struct drm_gem_object *obj,
+                                           int flags);
+extern int drm_gem_prime_handle_to_fd(struct drm_device *dev,
+               struct drm_file *file_priv, uint32_t handle, uint32_t flags,
+               int *prime_fd);
+extern struct drm_gem_object *drm_gem_prime_import(struct drm_device *dev,
+               struct dma_buf *dma_buf);
+extern int drm_gem_prime_fd_to_handle(struct drm_device *dev,
+               struct drm_file *file_priv, int prime_fd, uint32_t *handle);
+struct dma_buf *drm_gem_dmabuf_export(struct drm_device *dev,
+                                     struct dma_buf_export_info *exp_info);
+extern void drm_gem_dmabuf_release(struct dma_buf *dma_buf);
+
+extern int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, struct page **pages,
+                                           dma_addr_t *addrs, int max_pages);
+extern struct sg_table *drm_prime_pages_to_sg(struct page **pages, unsigned int nr_pages);
+extern void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg);
+
+
+#endif /* __DRM_PRIME_H__ */

diff --git a/include/drm/drm_vma_manager.h b/include/drm/drm_vma_manager.h
index 9c03895dc479dae56b84b8dd2f912bd499709eef..d84d52f6d2b119bd450af591eb2ccde38908ba15 100644 (file)
--- a/include/drm/drm_vma_manager.h
+++ b/include/drm/drm_vma_manager.h
@@ -25,7 +25,6 @@
 
 #include <drm/drm_mm.h>
 #include <linux/mm.h>
-#include <linux/module.h>
 #include <linux/rbtree.h>
 #include <linux/spinlock.h>
 #include <linux/types.h>