1 files changed, 138 insertions, 0 deletions
diff --git a/libdrm/nouveau/nouveau_grobj.c b/libdrm/nouveau/nouveau_grobj.c
new file mode 100644
index 00000000..2b6e53a5
--- /dev/null
+++ b/libdrm/nouveau/nouveau_grobj.c
@@ -0,0 +1,138 @@
+/*
+ * Copyright 2007 Nouveau Project
+ *
+ * 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 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 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.
+ */
+
+#include <stdlib.h>
+#include <errno.h>
+
+#include "nouveau_private.h"
+
+int
+nouveau_grobj_alloc(struct nouveau_channel *chan, uint32_t handle,
+		    int class, struct nouveau_grobj **grobj)
+{
+	struct nouveau_device_priv *nvdev = nouveau_device(chan->device);
+	struct nouveau_grobj_priv *nvgrobj;
+	struct drm_nouveau_grobj_alloc g;
+	int ret;
+
+	if (!nvdev || !grobj || *grobj)
+		return -EINVAL;
+
+	nvgrobj = calloc(1, sizeof(*nvgrobj));
+	if (!nvgrobj)
+		return -ENOMEM;
+	nvgrobj->base.channel = chan;
+	nvgrobj->base.handle  = handle;
+	nvgrobj->base.grclass = class;
+	nvgrobj->base.bound   = NOUVEAU_GROBJ_UNBOUND;
+	nvgrobj->base.subc    = -1;
+
+	g.channel = chan->id;
+	g.handle  = handle;
+	g.class   = class;
+	ret = drmCommandWrite(nvdev->fd, DRM_NOUVEAU_GROBJ_ALLOC,
+			      &g, sizeof(g));
+	if (ret) {
+		nouveau_grobj_free((void *)&nvgrobj);
+		return ret;
+	}
+
+	*grobj = &nvgrobj->base;
+	return 0;
+}
+
+int
+nouveau_grobj_ref(struct nouveau_channel *chan, uint32_t handle,
+		  struct nouveau_grobj **grobj)
+{
+	struct nouveau_grobj_priv *nvgrobj;
+
+	if (!chan || !grobj || *grobj)
+		return -EINVAL;
+
+	nvgrobj = calloc(1, sizeof(struct nouveau_grobj_priv));
+	if (!nvgrobj)
+		return -ENOMEM;
+	nvgrobj->base.channel = chan;
+	nvgrobj->base.handle = handle;
+	nvgrobj->base.grclass = 0;
+
+	*grobj = &nvgrobj->base;
+	return 0;
+}
+
+void
+nouveau_grobj_free(struct nouveau_grobj **grobj)
+{
+	struct nouveau_device_priv *nvdev;
+	struct nouveau_channel_priv *chan;
+	struct nouveau_grobj_priv *nvgrobj;
+
+	if (!grobj || !*grobj)
+		return;
+	nvgrobj = nouveau_grobj(*grobj);
+	*grobj = NULL;
+
+
+	chan = nouveau_channel(nvgrobj->base.channel);
+	nvdev = nouveau_device(chan->base.device);
+
+	if (nvgrobj->base.grclass) {
+		struct drm_nouveau_gpuobj_free f;
+
+		f.channel = chan->drm.channel;
+		f.handle  = nvgrobj->base.handle;
+		drmCommandWrite(nvdev->fd, DRM_NOUVEAU_GPUOBJ_FREE,
+				&f, sizeof(f));	
+	}
+	free(nvgrobj);
+}
+
+void
+nouveau_grobj_autobind(struct nouveau_grobj *grobj)
+{
+	struct nouveau_subchannel *subc = NULL;
+	int i;
+
+	for (i = 0; i < 8; i++) {
+		struct nouveau_subchannel *scc = &grobj->channel->subc[i];
+
+		if (scc->gr && scc->gr->bound == NOUVEAU_GROBJ_BOUND_EXPLICIT)
+			continue;
+
+		if (!subc || scc->sequence < subc->sequence)
+			subc = scc;
+	}
+
+	if (subc->gr) {
+		subc->gr->bound = NOUVEAU_GROBJ_UNBOUND;
+		subc->gr->subc  = -1;
+	}
+
+	subc->gr = grobj;
+	subc->gr->bound = NOUVEAU_GROBJ_BOUND;
+	subc->gr->subc  = subc - &grobj->channel->subc[0];
+
+	BEGIN_RING(grobj->channel, grobj, 0x0000, 1);
+	OUT_RING  (grobj->channel, grobj->handle);
+}
+