r300g: import the last bits of libdrm and cleanup the whole thing

Based on Dave's branch.

The majority of this commit is a cleanup, mainly renaming things.
There wasn't much code to import, just ioctl calls.

Also done:
- implemented unsynchronized bo_map (important optimization!)
- radeon_bo_is_referenced_by_cs is no longer a refcount hack
- dropped the libdrm_radeon dependency

I'm surprised that this has resulted in less code in the end.

1 files changed, 78 insertions, 0 deletions

diff --git a/src/gallium/winsys/radeon/drm/radeon_drm_bo.h b/src/gallium/winsys/radeon/drm/radeon_drm_bo.h
new file mode 100644
index 0000000000..092b5e693e
--- /dev/null
+++ b/src/gallium/winsys/radeon/drm/radeon_drm_bo.h
@@ -0,0 +1,78 @@
+/*
+ * Copyright © 2008 Jérôme Glisse
+ * All Rights Reserved.
+ *
+ * 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, sub license, 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 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
+ * NON-INFRINGEMENT. IN NO EVENT SHALL THE COPYRIGHT HOLDERS, AUTHORS
+ * AND/OR ITS SUPPLIERS 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.
+ *
+ * The above copyright notice and this permission notice (including the
+ * next paragraph) shall be included in all copies or substantial portions
+ * of the Software.
+ */
+/*
+ * Authors:
+ *      Jérôme Glisse <glisse@freedesktop.org>
+ */
+#ifndef RADEON_DRM_BUFFER_H
+#define RADEON_DRM_BUFFER_H
+
+#include "radeon_winsys.h"
+#include "pipebuffer/pb_bufmgr.h"
+
+#define RADEON_PB_USAGE_CACHE       (1 << 28)
+#define RADEON_PB_USAGE_DOMAIN_GTT  (1 << 29)
+#define RADEON_PB_USAGE_DOMAIN_VRAM (1 << 30)
+
+struct radeon_bomgr;
+
+struct radeon_bo {
+    struct pb_buffer base;
+    struct radeon_bomgr *mgr;
+
+    void *ptr;
+    uint32_t size;
+    uint32_t handle;
+    uint32_t name;
+
+    int cref;
+
+    boolean flinked;
+    uint32_t flink;
+};
+
+struct pb_manager *radeon_bomgr_create(struct radeon_drm_winsys *rws);
+struct pb_buffer *radeon_bomgr_create_bo_from_handle(struct pb_manager *_mgr,
+							      uint32_t handle);
+boolean radeon_bomgr_get_handle(struct pb_buffer *_buf,
+				     struct winsys_handle *whandle);
+void radeon_bomgr_init_functions(struct radeon_drm_winsys *ws);
+
+void radeon_bo_unref(struct radeon_bo *buf);
+
+
+static INLINE void radeon_bo_ref(struct radeon_bo *bo)
+{
+    p_atomic_inc(&bo->cref);
+}
+
+static INLINE struct pb_buffer *
+pb_buffer(struct r300_winsys_bo *buffer)
+{
+    return (struct pb_buffer *)buffer;
+}
+
+#endif