1/* $NetBSD: nouveau_nvc0_fence.c,v 1.1.1.1 2014/08/06 12:36:23 riastradh Exp $ */
2
3/*
4 * Copyright 2012 Red Hat Inc.
5 *
6 * Permission is hereby granted, free of charge, to any person obtaining a
7 * copy of this software and associated documentation files (the "Software"),
8 * to deal in the Software without restriction, including without limitation
9 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
10 * and/or sell copies of the Software, and to permit persons to whom the
11 * Software is furnished to do so, subject to the following conditions:
12 *
13 * The above copyright notice and this permission notice shall be included in
14 * all copies or substantial portions of the Software.
15 *
16 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
17 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
18 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
19 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
20 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
21 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
22 * OTHER DEALINGS IN THE SOFTWARE.
23 *
24 * Authors: Ben Skeggs
25 */
26
27#include <sys/cdefs.h>
28__KERNEL_RCSID(0, "$NetBSD: nouveau_nvc0_fence.c,v 1.1.1.1 2014/08/06 12:36:23 riastradh Exp $");
29
30#include <core/object.h>
31#include <core/client.h>
32#include <core/class.h>
33
34#include <engine/fifo.h>
35
36#include "nouveau_drm.h"
37#include "nouveau_dma.h"
38#include "nouveau_fence.h"
39
40#include "nv50_display.h"
41
42static int
43nvc0_fence_emit32(struct nouveau_channel *chan, u64 virtual, u32 sequence)
44{
45 int ret = RING_SPACE(chan, 6);
46 if (ret == 0) {
47 BEGIN_NVC0(chan, 0, NV84_SUBCHAN_SEMAPHORE_ADDRESS_HIGH, 5);
48 OUT_RING (chan, upper_32_bits(virtual));
49 OUT_RING (chan, lower_32_bits(virtual));
50 OUT_RING (chan, sequence);
51 OUT_RING (chan, NV84_SUBCHAN_SEMAPHORE_TRIGGER_WRITE_LONG);
52 OUT_RING (chan, 0x00000000);
53 FIRE_RING (chan);
54 }
55 return ret;
56}
57
58static int
59nvc0_fence_sync32(struct nouveau_channel *chan, u64 virtual, u32 sequence)
60{
61 int ret = RING_SPACE(chan, 5);
62 if (ret == 0) {
63 BEGIN_NVC0(chan, 0, NV84_SUBCHAN_SEMAPHORE_ADDRESS_HIGH, 4);
64 OUT_RING (chan, upper_32_bits(virtual));
65 OUT_RING (chan, lower_32_bits(virtual));
66 OUT_RING (chan, sequence);
67 OUT_RING (chan, NV84_SUBCHAN_SEMAPHORE_TRIGGER_ACQUIRE_GEQUAL |
68 NVC0_SUBCHAN_SEMAPHORE_TRIGGER_YIELD);
69 FIRE_RING (chan);
70 }
71 return ret;
72}
73
74static int
75nvc0_fence_context_new(struct nouveau_channel *chan)
76{
77 int ret = nv84_fence_context_new(chan);
78 if (ret == 0) {
79 struct nv84_fence_chan *fctx = chan->fence;
80 fctx->base.emit32 = nvc0_fence_emit32;
81 fctx->base.sync32 = nvc0_fence_sync32;
82 }
83 return ret;
84}
85
86int
87nvc0_fence_create(struct nouveau_drm *drm)
88{
89 int ret = nv84_fence_create(drm);
90 if (ret == 0) {
91 struct nv84_fence_priv *priv = drm->fence;
92 priv->base.context_new = nvc0_fence_context_new;
93 }
94 return ret;
95}
96