nouveau: add missing file.

1 files changed, 145 insertions, 0 deletions

diff --git a/linux-core/nouveau_buffer.c b/linux-core/nouveau_buffer.c
new file mode 100644
index 00000000..e9f09eb3
--- /dev/null
+++ b/linux-core/nouveau_buffer.c
@@ -0,0 +1,145 @@
+/*
+ * Copyright 2005 Stephane Marchesin.
+ * 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, 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
+ * VA LINUX SYSTEMS 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.
+ */
+/*
+ * Authors: Jeremy Kolb <jkolb@brandeis.edu>
+ */
+
+#include "drmP.h"
+#include "nouveau_drm.h"
+#include "nouveau_drv.h"
+
+#ifdef NOUVEAU_HAVE_BUFFER
+
+struct drm_ttm_backend *nouveau_create_ttm_backend_entry(struct drm_device * dev)
+{
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+
+	return drm_agp_init_ttm(dev);
+}
+
+int nouveau_fence_types(struct drm_buffer_object *bo,
+			uint32_t *fclass,
+			uint32_t *type)
+{
+	*fclass = 0;
+
+	if (bo->mem.mask & (DRM_BO_FLAG_READ | DRM_BO_FLAG_WRITE))
+		*type = 3;
+	else
+		*type = 1;
+	return 0;
+
+}
+int nouveau_invalidate_caches(struct drm_device *dev, uint64_t buffer_flags)
+{
+	/* We'll do this from user space. */
+	return 0;
+}
+
+int nouveau_init_mem_type(struct drm_device *dev,
+			  uint32_t type,
+			  struct drm_mem_type_manager *man)
+{
+	struct drm_nouveau_private *dev_priv = dev->dev_private;
+
+	switch (type) {
+		case DRM_BO_MEM_LOCAL:
+			man->flags = _DRM_FLAG_MEMTYPE_MAPPABLE |
+				_DRM_FLAG_MEMTYPE_CACHED;
+			man->drm_bus_maptype = 0;
+			break;
+
+		case DRM_BO_MEM_VRAM:
+			man->flags = _DRM_FLAG_MEMTYPE_FIXED |
+				_DRM_FLAG_MEMTYPE_MAPPABLE |
+				_DRM_FLAG_NEEDS_IOREMAP;
+			man->io_addr = NULL;
+			man->drm_bus_maptype = _DRM_FRAME_BUFFER;
+			man->io_offset = drm_get_resource_start(dev, 0);
+			man->io_size = drm_get_resource_len(dev, 0);
+			break;
+
+		case DRM_BO_MEM_TT:
+			if (!(drm_core_has_AGP(dev) && dev->agp)) {
+				DRM_ERROR("AGP is not enabled for memory type %u\n",
+						(unsigned)type);
+				return -EINVAL;
+			}
+
+			man->io_offset = dev->agp->agp_info.aper_base;
+			man->io_size = dev->agp->agp_info.aper_size * 1024 * 1024;
+			man->io_addr = NULL;
+			man->flags = _DRM_FLAG_MEMTYPE_MAPPABLE |
+				_DRM_FLAG_MEMTYPE_CSELECT | _DRM_FLAG_NEEDS_IOREMAP;
+			man->drm_bus_maptype = _DRM_AGP;
+			break;
+
+		default:
+			DRM_ERROR("Unsupported memory type %u\n", (unsigned)type);
+			return -EINVAL;
+	}
+	return 0;
+}
+
+uint32_t nouveau_evict_mask(struct drm_buffer_object *bo)
+{
+	switch (bo->mem.mem_type) {
+		case DRM_BO_MEM_LOCAL:
+		case DRM_BO_MEM_TT:
+			return DRM_BO_FLAG_MEM_LOCAL;
+		case DRM_BO_MEM_VRAM:
+			if (bo->mem.num_pages > 128)
+				return DRM_BO_MEM_TT;
+			else
+				return DRM_BO_MEM_LOCAL;
+		default:
+			return DRM_BO_FLAG_MEM_TT | DRM_BO_FLAG_CACHED;
+	}
+
+}
+
+int nouveau_move(struct drm_buffer_object *bo,
+		 int evict,
+		 int no_wait,
+		 struct drm_bo_mem_reg *new_mem)
+{
+	struct drm_bo_mem_reg *old_mem = &bo->mem;
+
+	if (old_mem->mem_type == DRM_BO_MEM_LOCAL) {
+		return drm_bo_move_memcpy(bo, evict, no_wait, new_mem);
+	else if (new_mem->mem_type == DRM_BO_MEM_LOCAL) {
+		return drm_bo_move_memcpy(bo, evict, no_wait, new_mem);
+	}
+	else {
+		return drm_bo_move_memcpy(bo, evict, no_wait, new_mem);
+	}
+	return 0;
+}
+
+void nouveau_flush_ttm(struct drm_ttm *ttm)
+{
+
+}
+
+#endif