nvc0_fence.c revision 0ad72863ea426d46b2786cba9430e122a40aad0b 
1/*
2 * Copyright 2012 Red Hat Inc.
3 *
4 * Permission is hereby granted, free of charge, to any person obtaining a
5 * copy of this software and associated documentation files (the "Software"),
6 * to deal in the Software without restriction, including without limitation
7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
8 * and/or sell copies of the Software, and to permit persons to whom the
9 * Software is furnished to do so, subject to the following conditions:
10 *
11 * The above copyright notice and this permission notice shall be included in
12 * all copies or substantial portions of the Software.
13 *
14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
18 * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
19 * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
20 * OTHER DEALINGS IN THE SOFTWARE.
21 *
22 * Authors: Ben Skeggs
23 */
24
25#include <core/object.h>
26#include <core/client.h>
27#include <core/class.h>
28
29#include "nouveau_drm.h"
30#include "nouveau_dma.h"
31#include "nouveau_fence.h"
32
33#include "nv50_display.h"
34
35static int
36nvc0_fence_emit32(struct nouveau_channel *chan, u64 virtual, u32 sequence)
37{
38	int ret = RING_SPACE(chan, 6);
39	if (ret == 0) {
40		BEGIN_NVC0(chan, 0, NV84_SUBCHAN_SEMAPHORE_ADDRESS_HIGH, 5);
41		OUT_RING  (chan, upper_32_bits(virtual));
42		OUT_RING  (chan, lower_32_bits(virtual));
43		OUT_RING  (chan, sequence);
44		OUT_RING  (chan, NV84_SUBCHAN_SEMAPHORE_TRIGGER_WRITE_LONG);
45		OUT_RING  (chan, 0x00000000);
46		FIRE_RING (chan);
47	}
48	return ret;
49}
50
51static int
52nvc0_fence_sync32(struct nouveau_channel *chan, u64 virtual, u32 sequence)
53{
54	int ret = RING_SPACE(chan, 5);
55	if (ret == 0) {
56		BEGIN_NVC0(chan, 0, NV84_SUBCHAN_SEMAPHORE_ADDRESS_HIGH, 4);
57		OUT_RING  (chan, upper_32_bits(virtual));
58		OUT_RING  (chan, lower_32_bits(virtual));
59		OUT_RING  (chan, sequence);
60		OUT_RING  (chan, NV84_SUBCHAN_SEMAPHORE_TRIGGER_ACQUIRE_GEQUAL |
61				 NVC0_SUBCHAN_SEMAPHORE_TRIGGER_YIELD);
62		FIRE_RING (chan);
63	}
64	return ret;
65}
66
67static int
68nvc0_fence_context_new(struct nouveau_channel *chan)
69{
70	int ret = nv84_fence_context_new(chan);
71	if (ret == 0) {
72		struct nv84_fence_chan *fctx = chan->fence;
73		fctx->base.emit32 = nvc0_fence_emit32;
74		fctx->base.sync32 = nvc0_fence_sync32;
75	}
76	return ret;
77}
78
79int
80nvc0_fence_create(struct nouveau_drm *drm)
81{
82	int ret = nv84_fence_create(drm);
83	if (ret == 0) {
84		struct nv84_fence_priv *priv = drm->fence;
85		priv->base.context_new = nvc0_fence_context_new;
86	}
87	return ret;
88}
89