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-rw-r--r--nouveau/nouveau_pushbuf.h196
1 files changed, 196 insertions, 0 deletions
diff --git a/nouveau/nouveau_pushbuf.h b/nouveau/nouveau_pushbuf.h
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+++ b/nouveau/nouveau_pushbuf.h
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+/*
+ * 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.
+ */
+
+#ifndef __NOUVEAU_PUSHBUF_H__
+#define __NOUVEAU_PUSHBUF_H__
+
+#include <assert.h>
+#include <string.h>
+
+#include "nouveau_bo.h"
+#include "nouveau_grobj.h"
+
+struct nouveau_pushbuf {
+ struct nouveau_channel *channel;
+
+ unsigned remaining;
+ uint32_t *cur;
+};
+
+int
+nouveau_pushbuf_flush(struct nouveau_channel *, unsigned min);
+
+int
+nouveau_pushbuf_marker_emit(struct nouveau_channel *chan,
+ unsigned wait_dwords, unsigned wait_relocs);
+
+void
+nouveau_pushbuf_marker_undo(struct nouveau_channel *chan);
+
+int
+nouveau_pushbuf_emit_reloc(struct nouveau_channel *, void *ptr,
+ struct nouveau_bo *, uint32_t data, uint32_t data2,
+ uint32_t flags, uint32_t vor, uint32_t tor);
+
+/* Push buffer access macros */
+static __inline__ int
+MARK_RING(struct nouveau_channel *chan, unsigned dwords, unsigned relocs)
+{
+ return nouveau_pushbuf_marker_emit(chan, dwords, relocs);
+}
+
+static __inline__ void
+MARK_UNDO(struct nouveau_channel *chan)
+{
+ nouveau_pushbuf_marker_undo(chan);
+}
+
+static __inline__ void
+OUT_RING(struct nouveau_channel *chan, unsigned data)
+{
+ *(chan->pushbuf->cur++) = (data);
+}
+
+static __inline__ void
+OUT_RINGp(struct nouveau_channel *chan, const void *data, unsigned size)
+{
+ memcpy(chan->pushbuf->cur, data, size * 4);
+ chan->pushbuf->cur += size;
+}
+
+static __inline__ void
+OUT_RINGf(struct nouveau_channel *chan, float f)
+{
+ union { uint32_t i; float f; } c;
+ c.f = f;
+ OUT_RING(chan, c.i);
+}
+
+static __inline__ unsigned
+AVAIL_RING(struct nouveau_channel *chan)
+{
+ return chan->pushbuf->remaining;
+}
+
+static __inline__ void
+WAIT_RING(struct nouveau_channel *chan, unsigned size)
+{
+ if (chan->pushbuf->remaining < size)
+ nouveau_pushbuf_flush(chan, size);
+}
+
+static __inline__ void
+BEGIN_RING(struct nouveau_channel *chan, struct nouveau_grobj *gr,
+ unsigned mthd, unsigned size)
+{
+ if (gr->bound == NOUVEAU_GROBJ_UNBOUND)
+ nouveau_grobj_autobind(gr);
+ chan->subc[gr->subc].sequence = chan->subc_sequence++;
+
+ WAIT_RING(chan, size + 1);
+ OUT_RING(chan, (gr->subc << 13) | (size << 18) | mthd);
+ chan->pushbuf->remaining -= (size + 1);
+}
+
+static __inline__ void
+FIRE_RING(struct nouveau_channel *chan)
+{
+ nouveau_pushbuf_flush(chan, 0);
+}
+
+static __inline__ void
+BIND_RING(struct nouveau_channel *chan, struct nouveau_grobj *gr, unsigned sc)
+{
+ struct nouveau_subchannel *subc = &gr->channel->subc[sc];
+
+ if (subc->gr) {
+ if (subc->gr->bound == NOUVEAU_GROBJ_BOUND_EXPLICIT)
+ assert(0);
+ subc->gr->bound = NOUVEAU_GROBJ_UNBOUND;
+ }
+ subc->gr = gr;
+ subc->gr->subc = sc;
+ subc->gr->bound = NOUVEAU_GROBJ_BOUND_EXPLICIT;
+
+ BEGIN_RING(chan, gr, 0x0000, 1);
+ OUT_RING (chan, gr->handle);
+}
+
+static __inline__ int
+OUT_RELOC(struct nouveau_channel *chan, struct nouveau_bo *bo,
+ unsigned data, unsigned flags, unsigned vor, unsigned tor)
+{
+ return nouveau_pushbuf_emit_reloc(chan, chan->pushbuf->cur++, bo,
+ data, 0, flags, vor, tor);
+}
+
+static __inline__ int
+OUT_RELOC2(struct nouveau_channel *chan, struct nouveau_bo *bo,
+ unsigned data, unsigned data2, unsigned flags,
+ unsigned vor, unsigned tor)
+{
+ return nouveau_pushbuf_emit_reloc(chan, chan->pushbuf->cur++, bo,
+ data, data2, flags, vor, tor);
+}
+
+/* Raw data + flags depending on FB/TT buffer */
+static __inline__ int
+OUT_RELOCd(struct nouveau_channel *chan, struct nouveau_bo *bo,
+ unsigned data, unsigned flags, unsigned vor, unsigned tor)
+{
+ return OUT_RELOC(chan, bo, data, flags | NOUVEAU_BO_OR, vor, tor);
+}
+
+/* FB/TT object handle */
+static __inline__ int
+OUT_RELOCo(struct nouveau_channel *chan, struct nouveau_bo *bo,
+ unsigned flags)
+{
+ return OUT_RELOC(chan, bo, 0, flags | NOUVEAU_BO_OR,
+ chan->vram->handle, chan->gart->handle);
+}
+
+/* Low 32-bits of offset */
+static __inline__ int
+OUT_RELOCl(struct nouveau_channel *chan, struct nouveau_bo *bo,
+ unsigned delta, unsigned flags)
+{
+ return OUT_RELOC(chan, bo, delta, flags | NOUVEAU_BO_LOW, 0, 0);
+}
+
+/* Low 32-bits of offset + GPU linear access range info */
+static __inline__ int
+OUT_RELOCr(struct nouveau_channel *chan, struct nouveau_bo *bo,
+ unsigned delta, unsigned size, unsigned flags)
+{
+ return OUT_RELOC2(chan, bo, delta, size, flags | NOUVEAU_BO_LOW, 0, 0);
+}
+
+/* High 32-bits of offset */
+static __inline__ int
+OUT_RELOCh(struct nouveau_channel *chan, struct nouveau_bo *bo,
+ unsigned delta, unsigned flags)
+{
+ return OUT_RELOC(chan, bo, delta, flags | NOUVEAU_BO_HIGH, 0, 0);
+}
+
+#endif