From 2140e102f942edf7982cee2a3f00caf234551687 Mon Sep 17 00:00:00 2001
From: Eric Anholt <eric@anholt.net>
Date: Thu, 1 May 2008 11:39:06 -0700
Subject: checkpoint: rename to GEM and a few more i915 bits.

---
 linux-core/i915_gem.c | 140 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 140 insertions(+)
 create mode 100644 linux-core/i915_gem.c

(limited to 'linux-core/i915_gem.c')

diff --git a/linux-core/i915_gem.c b/linux-core/i915_gem.c
new file mode 100644
index 00000000..0685a1b9
--- /dev/null
+++ b/linux-core/i915_gem.c
@@ -0,0 +1,140 @@
+/*
+ * Copyright © 2008 Intel Corporation
+ *
+ * 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:
+ *    Eric Anholt <eric@anholt.net>
+ *
+ */
+
+#include "drmP.h"
+#include "drm.h"
+#include "i915_drm.h"
+#include "i915_drv.h"
+
+int
+i915_gem_init_ioctl(struct drm_device *dev, void *data,
+		    struct drm_file *file_priv)
+{
+	drm_i915_private_t *dev_priv = dev->dev_private;
+	struct drm_i915_gem_init *args = data;
+
+	if (args->gtt_start >= args->gtt_end ||
+	    (args->gtt_start & (PAGE_SIZE - 1)) != 0 ||
+	    (args->gtt_end & (PAGE_SIZE - 1)) != 0)
+		return -EINVAL;
+
+	drm_memrange_init(&dev_priv->mm.gtt_space, args->gtt_start,
+	    args->gtt_end);
+
+	return 0;
+}
+
+static void
+i915_gem_evict_object(struct drm_device *dev, struct drm_gem_object *obj)
+{
+	
+}
+
+static int
+evict_callback(struct drm_memrange_node *node, void *data)
+{
+	struct drm_device *dev = data;
+	struct drm_gem_object *obj = node->private;
+	struct drm_i915_gem_object *obj_priv = obj->driver_private;
+
+	if (obj_priv->pin_count == 0)
+		i915_gem_evict_object(dev, obj);
+
+	return 0;
+}
+
+int
+i915_gem_execbuffer(struct drm_device *dev, void *data,
+		   struct drm_file *file_priv)
+{
+	drm_i915_private_t *dev_priv = dev->dev_private;
+	struct drm_i915_gem_execbuffer *args = data;
+	struct drm_i915_gem_validate_entry *validate_list;
+	int ret, i;
+	RING_LOCALS;
+
+	LOCK_TEST_WITH_RETURN(dev, file_priv);
+
+	/* Big hammer: flush and idle the hardware so we can map things in/out.
+	 */
+	BEGIN_LP_RING(2);
+	OUT_RING(CMD_MI_FLUSH | MI_READ_FLUSH | MI_EXE_FLUSH);
+	OUT_RING(0); /* noop */
+	ADVANCE_LP_RING();
+	ret = i915_quiescent(dev);
+	if (ret != 0)
+		return ret;
+
+	/* Evict everything so we have space for sure. */
+	drm_memrange_for_each(&dev_priv->mm.gtt_space, evict_callback);
+
+	/* Copy in the validate list from userland */
+	validate_list = drm_calloc(sizeof(*validate_list), args->buffer_count,
+				   DRM_MEM_DRIVER);
+	ret = copy_from_user(validate_list,
+			     (struct drm_i915_relocation_entry __user*)
+			     args->buffers,
+			     sizeof(*validate_list) * args->buffer_count);
+	if (ret != 0) {
+		drm_free(validate_list,
+			 sizeof(*validate_list) * args->buffer_count,
+			 DRM_MEM_DRIVER);
+		return ret;
+	}
+
+	/* Perform the relocations */
+	for (i = 0; i < args->buffer_count; i++) {
+		intel_gem_reloc_and_validate_buffer(dev, &validate_list[i]);
+	}
+
+	/* Exec the batchbuffer */
+
+
+	drm_free(validate_list, sizeof(*validate_list) * args->buffer_count,
+		 DRM_MEM_DRIVER);
+
+	return 0;
+}
+
+int i915_gem_init_object(struct drm_device *dev, struct drm_gem_object *obj)
+{
+	struct drm_i915_gem_object *obj_priv;
+
+	obj_priv = drm_calloc(1, sizeof(*obj_priv), DRM_MEM_DRIVER);
+	if (obj_priv == NULL)
+		return -ENOMEM;
+
+	obj->driver_private = obj_priv;
+
+	return 0;
+}
+
+void i915_gem_free_object(struct drm_device *dev, struct drm_gem_object *obj)
+{
+	drm_free(obj->driver_private, 1, DRM_MEM_DRIVER);
+}
+
-- 
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