drm: Extract <drm/drm_gem.h>

v2: Don't forget git add, noticed by David.

Cc: David Herrmann <dh.herrmann@gmail.com>

Signed-off-by: Daniel Vetter <daniel.vetter@intel.com>
Acked-by: David Herrmann <dh.herrmann@gmail.com>
Acked-by: Alex Deucher <alexander.deucher@amd.com>
Signed-off-by: Dave Airlie <airlied@redhat.com>

3 files changed, 185 insertions, 147 deletions

diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 6656fd7d64d4..d2c2b7f3a4e2 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -82,6 +82,7 @@ struct drm_agp_head;
 struct drm_local_map;
 struct drm_device_dma;
 struct drm_dma_handle;
+struct drm_gem_object;
 
 struct device_node;
 struct videomode;
@@ -331,93 +332,6 @@ struct drm_lock_data {
 };
 
 /**
- * This structure defines the drm_mm memory object, which will be used by the
- * DRM for its buffer objects.
- */
-struct drm_gem_object {
-        /** Reference count of this object */
-        struct kref refcount;
-
-        /**
-         * handle_count - gem file_priv handle count of this object
-         *
-         * Each handle also holds a reference. Note that when the handle_count
-         * drops to 0 any global names (e.g. the id in the flink namespace) will
-         * be cleared.
-         *
-         * Protected by dev->object_name_lock.
-         * */
-        unsigned handle_count;
-
-        /** Related drm device */
-        struct drm_device *dev;
-
-        /** File representing the shmem storage */
-        struct file *filp;
-
-        /* Mapping info for this object */
-        struct drm_vma_offset_node vma_node;
-
-        /**
-         * Size of the object, in bytes.  Immutable over the object's
-         * lifetime.
-         */
-        size_t size;
-
-        /**
-         * Global name for this object, starts at 1. 0 means unnamed.
-         * Access is covered by the object_name_lock in the related drm_device
-         */
-        int name;
-
-        /**
-         * Memory domains. These monitor which caches contain read/write data
-         * related to the object. When transitioning from one set of domains
-         * to another, the driver is called to ensure that caches are suitably
-         * flushed and invalidated
-         */
-        uint32_t read_domains;
-        uint32_t write_domain;
-
-        /**
-         * While validating an exec operation, the
-         * new read/write domain values are computed here.
-         * They will be transferred to the above values
-         * at the point that any cache flushing occurs
-         */
-        uint32_t pending_read_domains;
-        uint32_t pending_write_domain;
-
-        /**
-         * dma_buf - dma buf associated with this GEM object
-         *
-         * Pointer to the dma-buf associated with this gem object (either
-         * through importing or exporting). We break the resulting reference
-         * loop when the last gem handle for this object is released.
-         *
-         * Protected by obj->object_name_lock
-         */
-        struct dma_buf *dma_buf;
-
-        /**
-         * import_attach - dma buf attachment backing this object
-         *
-         * Any foreign dma_buf imported as a gem object has this set to the
-         * attachment point for the device. This is invariant over the lifetime
-         * of a gem object.
-         *
-         * The driver's ->gem_free_object callback is responsible for cleaning
-         * up the dma_buf attachment and references acquired at import time.
-         *
-         * Note that the drm gem/prime core does not depend upon drivers setting
-         * this field any more. So for drivers where this doesn't make sense
-         * (e.g. virtual devices or a displaylink behind an usb bus) they can
-         * simply leave it as NULL.
-         */
-        struct dma_buf_attachment *import_attach;
-};
-
-/**
  * struct drm_master - drm master structure
  *
  * @refcount: Refcount for this master object.
@@ -1073,10 +987,6 @@ extern int drm_prime_sg_to_page_addr_arrays(struct sg_table *sgt, struct page **
 extern struct sg_table *drm_prime_pages_to_sg(struct page **pages, int nr_pages);
 extern void drm_prime_gem_destroy(struct drm_gem_object *obj, struct sg_table *sg);
 
-int drm_gem_dumb_destroy(struct drm_file *file,
-                         struct drm_device *dev,
-                         uint32_t handle);
-
 
 extern struct drm_dma_handle *drm_pci_alloc(struct drm_device *dev, size_t size,
                                             size_t align);
@@ -1085,62 +995,6 @@ extern void drm_pci_free(struct drm_device *dev, struct drm_dma_handle * dmah);
                                /* sysfs support (drm_sysfs.c) */
 extern void drm_sysfs_hotplug_event(struct drm_device *dev);
 
-/* Graphics Execution Manager library functions (drm_gem.c) */
-void drm_gem_object_release(struct drm_gem_object *obj);
-void drm_gem_object_free(struct kref *kref);
-int drm_gem_object_init(struct drm_device *dev,
-                        struct drm_gem_object *obj, size_t size);
-void drm_gem_private_object_init(struct drm_device *dev,
-                                 struct drm_gem_object *obj, size_t size);
-void drm_gem_vm_open(struct vm_area_struct *vma);
-void drm_gem_vm_close(struct vm_area_struct *vma);
-int drm_gem_mmap_obj(struct drm_gem_object *obj, unsigned long obj_size,
-                     struct vm_area_struct *vma);
-int drm_gem_mmap(struct file *filp, struct vm_area_struct *vma);
-
-static inline void
-drm_gem_object_reference(struct drm_gem_object *obj)
-{
-        kref_get(&obj->refcount);
-}
-
-static inline void
-drm_gem_object_unreference(struct drm_gem_object *obj)
-{
-        if (obj != NULL)
-                kref_put(&obj->refcount, drm_gem_object_free);
-}
-
-static inline void
-drm_gem_object_unreference_unlocked(struct drm_gem_object *obj)
-{
-        if (obj && !atomic_add_unless(&obj->refcount.refcount, -1, 1)) {
-                struct drm_device *dev = obj->dev;
-
-                mutex_lock(&dev->struct_mutex);
-                if (likely(atomic_dec_and_test(&obj->refcount.refcount)))
-                        drm_gem_object_free(&obj->refcount);
-                mutex_unlock(&dev->struct_mutex);
-        }
-}
-
-int drm_gem_handle_create(struct drm_file *file_priv,
-                          struct drm_gem_object *obj,
-                          u32 *handlep);
-int drm_gem_handle_delete(struct drm_file *filp, u32 handle);
-
-
-void drm_gem_free_mmap_offset(struct drm_gem_object *obj);
-int drm_gem_create_mmap_offset(struct drm_gem_object *obj);
-int drm_gem_create_mmap_offset_size(struct drm_gem_object *obj, size_t size);
-
-struct page **drm_gem_get_pages(struct drm_gem_object *obj);
-void drm_gem_put_pages(struct drm_gem_object *obj, struct page **pages,
-                bool dirty, bool accessed);
-
-struct drm_gem_object *drm_gem_object_lookup(struct drm_device *dev,
-                                             struct drm_file *filp,
-                                             u32 handle);
 
 struct drm_device *drm_dev_alloc(struct drm_driver *driver,
                                  struct device *parent);
diff --git a/include/drm/drm_gem.h b/include/drm/drm_gem.h
new file mode 100644
index 000000000000..1e6ae1458f7a
--- /dev/null
+++ b/include/drm/drm_gem.h
@@ -0,0 +1,183 @@
+#ifndef __DRM_GEM_H__
+#define __DRM_GEM_H__
+
+/*
+ * GEM Graphics Execution Manager Driver Interfaces
+ *
+ * Copyright 1999 Precision Insight, Inc., Cedar Park, Texas.