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Diffstat (limited to 'libdrm/nouveau/nouveau_grobj.c')
-rw-r--r--libdrm/nouveau/nouveau_grobj.c138
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);
+}
+