drm: Move legacy buffer structures to <drm/drm_legacy.h>

A few odd cases:
- mgag200 someho had a totally unused drm_dma_handle_t. Remove it.
- i915 still uses the legacy pci dma alloc api, so grows an include.

Everything else fairly standard.

v2: Include "drm_legacy.h" in drm.ko source files for consistency.

Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

3 files changed, 117 insertions, 113 deletions

diff --git a/include/drm/ati_pcigart.h b/include/drm/ati_pcigart.h
index da4bfcd81a37..5765648b5ef7 100644
--- a/include/drm/ati_pcigart.h
+++ b/include/drm/ati_pcigart.h
@@ -1,6 +1,8 @@
 #ifndef DRM_ATI_PCIGART_H
 #define DRM_ATI_PCIGART_H
 
+#include <drm/drm_legacy.h>
+
 /* location of GART table */
 #define DRM_ATI_GART_MAIN 1
 #define DRM_ATI_GART_FB   2
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 4a72db4b4329..0d68ecdb447a 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -79,6 +79,9 @@ struct module;
 struct drm_file;
 struct drm_device;
 struct drm_agp_head;
+struct drm_local_map;
+struct drm_device_dma;
+struct drm_dma_handle;
 
 struct device_node;
 struct videomode;
@@ -275,57 +278,6 @@ struct drm_ioctl_desc {
 #define DRM_IOCTL_DEF_DRV(ioctl, _func, _flags)                 \
         [DRM_IOCTL_NR(DRM_##ioctl)] = {.cmd = DRM_##ioctl, .func = _func, .flags = _flags, .cmd_drv = DRM_IOCTL_##ioctl, .name = #ioctl}
 
-/**
- * DMA buffer.
- */
-struct drm_buf {
-        int idx;                       /**< Index into master buflist */
-        int total;                     /**< Buffer size */
-        int order;                     /**< log-base-2(total) */
-        int used;                      /**< Amount of buffer in use (for DMA) */
-        unsigned long offset;          /**< Byte offset (used internally) */
-        void *address;                 /**< Address of buffer */
-        unsigned long bus_address;     /**< Bus address of buffer */
-        struct drm_buf *next;          /**< Kernel-only: used for free list */
-        __volatile__ int waiting;      /**< On kernel DMA queue */
-        __volatile__ int pending;      /**< On hardware DMA queue */
-        struct drm_file *file_priv;    /**< Private of holding file descr */
-        int context;                   /**< Kernel queue for this buffer */
-        int while_locked;              /**< Dispatch this buffer while locked */
-        enum {
-                DRM_LIST_NONE = 0,
-                DRM_LIST_FREE = 1,
-                DRM_LIST_WAIT = 2,
-                DRM_LIST_PEND = 3,
-                DRM_LIST_PRIO = 4,
-                DRM_LIST_RECLAIM = 5
-        } list;                        /**< Which list we're on */
-
-        int dev_priv_size;               /**< Size of buffer private storage */
-        void *dev_private;               /**< Per-buffer private storage */
-};
-
-typedef struct drm_dma_handle {
-        dma_addr_t busaddr;
-        void *vaddr;
-        size_t size;
-} drm_dma_handle_t;
-
-/**
- * Buffer entry.  There is one of this for each buffer size order.
- */
-struct drm_buf_entry {
-        int buf_size;                   /**< size */
-        int buf_count;                  /**< number of buffers */
-        struct drm_buf *buflist;                /**< buffer list */
-        int seg_count;
-        int page_order;
-        struct drm_dma_handle **seglist;
-
-        int low_mark;                   /**< Low water mark */
-        int high_mark;                  /**< High water mark */
-};
-
 /* Event queued up for userspace to read */
 struct drm_pending_event {
         struct drm_event *event;
@@ -404,65 +356,6 @@ struct drm_lock_data {
 };
 
 /**
- * DMA data.
- */
-struct drm_device_dma {
-
-        struct drm_buf_entry bufs[DRM_MAX_ORDER + 1];   /**< buffers, grouped by their size order */
-        int buf_count;                  /**< total number of buffers */
-        struct drm_buf **buflist;               /**< Vector of pointers into drm_device_dma::bufs */
-        int seg_count;
-        int page_count;                 /**< number of pages */
-        unsigned long *pagelist;        /**< page list */
-        unsigned long byte_count;
-        enum {
-                _DRM_DMA_USE_AGP = 0x01,
-                _DRM_DMA_USE_SG = 0x02,
-                _DRM_DMA_USE_FB = 0x04,
-                _DRM_DMA_USE_PCI_RO = 0x08
-        } flags;
-
-};
-
-/**
- * Scatter-gather memory.
- */
-struct drm_sg_mem {
-        unsigned long handle;
-        void *virtual;
-        int pages;
-        struct page **pagelist;
-        dma_addr_t *busaddr;
-};
-
-/**
- * Kernel side of a mapping
- */
-struct drm_local_map {
-        resource_size_t offset;  /**< Requested physical address (0 for SAREA)*/
-        unsigned long size;      /**< Requested physical size (bytes) */
-        enum drm_map_type type;  /**< Type of memory to map */
-        enum drm_map_flags flags;        /**< Flags */
-        void *handle;            /**< User-space: "Handle" to pass to mmap() */
-                                 /**< Kernel-space: kernel-virtual address */
-        int mtrr;                /**< MTRR slot used */
-};
-
-typedef struct drm_local_map drm_local_map_t;
-
-/**
- * Mappings list
- */
-struct drm_map_list {
-        struct list_head head;          /**< list head */
-        struct drm_hash_item hash;
-        struct drm_local_map *map;      /**< mapping */
-        uint64_t user_token;
-        struct drm_master *master;
-};
-
-
-/**
  * This structure defines the drm_mm memory object, which will be used by the
  * DRM for its buffer objects.
  */
@@ -1246,9 +1139,9 @@ int drm_gem_dumb_destroy(struct drm_file *file,
                          uint32_t handle);
 
 
-extern drm_dma_handle_t *drm_pci_alloc(struct drm_device *dev, size_t size,
-                                       size_t align);
-extern void drm_pci_free(struct drm_device *dev, drm_dma_handle_t * dmah);
+extern struct drm_dma_handle *drm_pci_alloc(struct drm_device *dev, size_t size,
+                                            size_t align);
+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);
diff --git a/include/drm/drm_legacy.h b/include/drm/drm_legacy.h
index cc6e528069a8..a0fabf7624ea 100644
--- a/include/drm/drm_legacy.h
+++ b/include/drm/drm_legacy.h
@@ -42,6 +42,115 @@
  * you're doing it terribly wrong.
  */
 
+/**
+ * DMA buffer.
+ */
+struct drm_buf {
+        int idx;                       /**< Index into master buflist */
+        int total;                     /**< Buffer size */
+        int order;                     /**< log-base-2(total) */
+        int used;                      /**< Amount of buffer in use (for DMA) */
+        unsigned long offset;          /**< Byte offset (used internally) */
+        void *address;                 /**< Address of buffer */
+        unsigned long bus_address;     /**< Bus address of buffer */
+        struct drm_buf *next;          /**< Kernel-only: used for free list */
+        __volatile__ int waiting;      /**< On kernel DMA queue */
+        __volatile__ int pending;      /**< On hardware DMA queue */
+        struct drm_file *file_priv;    /**< Private of holding file descr */
+        int context;                   /**< Kernel queue for this buffer */
+        int while_locked;              /**< Dispatch this buffer while locked */
+        enum {
+                DRM_LIST_NONE = 0,
+                DRM_LIST_FREE = 1,
+                DRM_LIST_WAIT = 2,
+                DRM_LIST_PEND = 3,
+                DRM_LIST_PRIO = 4,
+                DRM_LIST_RECLAIM = 5
+        } list;                        /**< Which list we're on */
+
+        int dev_priv_size;               /**< Size of buffer private storage */
+        void *dev_private;               /**< Per-buffer private storage */
+};
+
+typedef struct drm_dma_handle {
+        dma_addr_t busaddr;
+        void *vaddr;
+        size_t size;
+} drm_dma_handle_t;
+
+/**
+ * Buffer entry.  There is one of this for each buffer size order.
+ */
+struct drm_buf_entry {
+        int buf_size;                   /**< size */
+        int buf_count;                  /**< number of buffers */
+        struct drm_buf *buflist;                /**< buffer list */
+        int seg_count;
+        int page_order;
+        struct drm_dma_handle **seglist;
+
+        int low_mark;                   /**< Low water mark */
+        int high_mark;                  /**< High water mark */
+};
+
+/**
+ * DMA data.
+ */
+struct drm_device_dma {
+
+        struct drm_buf_entry bufs[DRM_MAX_ORDER + 1];   /**< buffers, grouped by their size order */
+        int buf_count;                  /**< total number of buffers */
+        struct drm_buf **buflist;               /**< Vector of pointers into drm_device_dma::bufs */
+        int seg_count;
+        int page_count;                 /**< number of pages */
+        unsigned long *pagelist;        /**< page list */
+        unsigned long byte_count;
+        enum {
+                _DRM_DMA_USE_AGP = 0x01,
+                _DRM_DMA_USE_SG = 0x02,
+                _DRM_DMA_USE_FB = 0x04,
+                _DRM_DMA_USE_PCI_RO = 0x08
+        } flags;
+
+};
+
+/**
+ * Scatter-gather memory.
+ */
+struct drm_sg_mem {
+        unsigned long handle;
+        void *virtual;
+        int pages;
+        struct page **pagelist;
+        dma_addr_t *busaddr;
+};
+
+/**
+ * Kernel side of a mapping
+ */
+struct drm_local_map {
+        resource_size_t offset;  /**< Requested physical address (0 for SAREA)*/
+        unsigned long size;      /**< Requested physical size (bytes) */
+        enum drm_map_type type;  /**< Type of memory to map */
+        enum drm_map_flags flags;        /**< Flags */
+        void *handle;            /**< User-space: "Handle" to pass to mmap() */
+                                 /**< Kernel-space: kernel-virtual address */
+        int mtrr;                /**< MTRR slot used */
+};
+
+typedef struct drm_local_map drm_local_map_t;
+
+/**
+ * Mappings list
+ */
+struct drm_map_list {
+        struct list_head head;          /**< list head */
+        struct drm_hash_item hash;
+        struct drm_local_map *map;      /**< mapping */
+        uint64_t user_token;
+        struct drm_master *master;
+};
+
 int drm_legacy_addmap(struct drm_device *d, resource_size_t offset,
                       unsigned int size, enum drm_map_type type,
                       enum drm_map_flags flags, struct drm_local_map **map_p);