nouveau: match gallium code reorginisation.

That was... fun..

1 files changed, 215 insertions, 0 deletions

diff --git a/src/gallium/winsys/dri/nouveau/nouveau_fence.c b/src/gallium/winsys/dri/nouveau/nouveau_fence.c
new file mode 100644
index 00000000000..7714e6f2485
--- /dev/null
+++ b/src/gallium/winsys/dri/nouveau/nouveau_fence.c
@@ -0,0 +1,215 @@
+/*
+ * 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 <assert.h>
+
+#include "nouveau_drmif.h"
+#include "nouveau_dma.h"
+#include "nouveau_local.h"
+
+static void
+nouveau_fence_del_unsignalled(struct nouveau_fence *fence)
+{
+	struct nouveau_channel_priv *nvchan = nouveau_channel(fence->channel);
+	struct nouveau_fence *le;
+
+	if (nvchan->fence_head == fence) {
+		nvchan->fence_head = nouveau_fence(fence)->next;
+		if (nvchan->fence_head == NULL)
+			nvchan->fence_tail = NULL;
+		return;
+	}
+
+	le = nvchan->fence_head;
+	while (le && nouveau_fence(le)->next != fence)
+		le = nouveau_fence(le)->next;
+	assert(le && nouveau_fence(le)->next == fence);
+	nouveau_fence(le)->next = nouveau_fence(fence)->next;
+	if (nvchan->fence_tail == fence)
+		nvchan->fence_tail = le;
+}
+
+static void
+nouveau_fence_del(struct nouveau_fence **fence)
+{
+	struct nouveau_fence_priv *nvfence;
+
+	if (!fence || !*fence)
+		return;
+	nvfence = nouveau_fence(*fence);
+	*fence = NULL;
+
+	if (--nvfence->refcount)
+		return;
+
+	if (nvfence->emitted && !nvfence->signalled) {
+		if (nvfence->signal_cb) {
+			nvfence->refcount++;
+			nouveau_fence_wait((void *)&nvfence);
+			return;
+		}
+
+		nouveau_fence_del_unsignalled(&nvfence->base);
+	}
+	free(nvfence);
+}
+
+int
+nouveau_fence_new(struct nouveau_channel *chan, struct nouveau_fence **fence)
+{
+	struct nouveau_fence_priv *nvfence;
+
+	if (!chan || !fence || *fence)
+		return -EINVAL;
+	
+	nvfence = calloc(1, sizeof(struct nouveau_fence_priv));
+	if (!nvfence)
+		return -ENOMEM;
+	nvfence->base.channel = chan;
+	nvfence->refcount = 1;
+
+	*fence = &nvfence->base;
+	return 0;
+}
+
+int
+nouveau_fence_ref(struct nouveau_fence *ref, struct nouveau_fence **fence)
+{
+	struct nouveau_fence_priv *nvfence;
+
+	if (!fence)
+		return -EINVAL;
+
+	if (*fence) {
+		nouveau_fence_del(fence);
+		*fence = NULL;
+	}
+
+	if (ref) {
+		nvfence = nouveau_fence(ref);
+		nvfence->refcount++;	
+		*fence = &nvfence->base;
+	}
+
+	return 0;
+}
+
+int
+nouveau_fence_signal_cb(struct nouveau_fence *fence, void (*func)(void *),
+			void *priv)
+{
+	struct nouveau_fence_priv *nvfence = nouveau_fence(fence);
+	struct nouveau_fence_cb *cb;
+
+	if (!nvfence || !func)
+		return -EINVAL;
+
+	cb = malloc(sizeof(struct nouveau_fence_cb));
+	if (!cb)
+		return -ENOMEM;
+
+	cb->func = func;
+	cb->priv = priv;
+	cb->next = nvfence->signal_cb;
+	nvfence->signal_cb = cb;
+	return 0;
+}
+
+void
+nouveau_fence_emit(struct nouveau_fence *fence)
+{
+	struct nouveau_channel_priv *nvchan = nouveau_channel(fence->channel);
+	struct nouveau_fence_priv *nvfence = nouveau_fence(fence);
+
+	nvfence->emitted = 1;
+	nvfence->sequence = ++nvchan->fence_sequence;
+	if (nvfence->sequence == 0xffffffff)
+		NOUVEAU_ERR("AII wrap unhandled\n");
+
+	/*XXX: assumes subc 0 is populated */
+	RING_SPACE_CH(fence->channel, 2);
+	OUT_RING_CH  (fence->channel, 0x00040050);
+	OUT_RING_CH  (fence->channel, nvfence->sequence);
+
+	if (nvchan->fence_tail) {
+		nouveau_fence(nvchan->fence_tail)->next = fence;
+	} else {
+		nvchan->fence_head = fence;
+	}
+	nvchan->fence_tail = fence;
+}
+
+void
+nouveau_fence_flush(struct nouveau_channel *chan)
+{
+	struct nouveau_channel_priv *nvchan = nouveau_channel(chan);
+	uint32_t sequence = *nvchan->ref_cnt;
+
+	while (nvchan->fence_head) {
+		struct nouveau_fence_priv *nvfence;
+	
+		nvfence = nouveau_fence(nvchan->fence_head);
+		if (nvfence->sequence > sequence)
+			break;
+
+		nouveau_fence_del_unsignalled(&nvfence->base);
+		nvfence->signalled = 1;
+
+		if (nvfence->signal_cb) {
+			struct nouveau_fence *fence = NULL;
+
+			nouveau_fence_ref(nvchan->fence_head, &fence);
+
+			while (nvfence->signal_cb) {
+				struct nouveau_fence_cb *cb;
+				
+				cb = nvfence->signal_cb;
+				nvfence->signal_cb = cb->next;
+				cb->func(cb->priv);
+				free(cb);
+			}
+
+			nouveau_fence_ref(NULL, &fence);
+		}
+	}
+}
+
+int
+nouveau_fence_wait(struct nouveau_fence **fence)
+{
+	struct nouveau_fence_priv *nvfence;
+	
+	if (!fence || !*fence)
+		return -EINVAL;
+	nvfence = nouveau_fence(*fence);
+
+	if (nvfence->emitted) {
+		while (!nvfence->signalled)
+			nouveau_fence_flush(nvfence->base.channel);
+	}
+	nouveau_fence_ref(NULL, fence);
+
+	return 0;
+}
+