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 "nouveau_drm.h"
26#include "nouveau_dma.h"
27#include "nouveau_fence.h"
28
29#include "nv50_display.h"
30
31static int
32nvc0_fence_emit32(struct nouveau_channel *chan, u64 virtual, u32 sequence)
33{
34	int ret = RING_SPACE(chan, 6);
35	if (ret == 0) {
36		BEGIN_NVC0(chan, 0, NV84_SUBCHAN_SEMAPHORE_ADDRESS_HIGH, 5);
37		OUT_RING  (chan, upper_32_bits(virtual));
38		OUT_RING  (chan, lower_32_bits(virtual));
39		OUT_RING  (chan, sequence);
40		OUT_RING  (chan, NV84_SUBCHAN_SEMAPHORE_TRIGGER_WRITE_LONG);
41		OUT_RING  (chan, 0x00000000);
42		FIRE_RING (chan);
43	}
44	return ret;
45}
46
47static int
48nvc0_fence_sync32(struct nouveau_channel *chan, u64 virtual, u32 sequence)
49{
50	int ret = RING_SPACE(chan, 5);
51	if (ret == 0) {
52		BEGIN_NVC0(chan, 0, NV84_SUBCHAN_SEMAPHORE_ADDRESS_HIGH, 4);
53		OUT_RING  (chan, upper_32_bits(virtual));
54		OUT_RING  (chan, lower_32_bits(virtual));
55		OUT_RING  (chan, sequence);
56		OUT_RING  (chan, NV84_SUBCHAN_SEMAPHORE_TRIGGER_ACQUIRE_GEQUAL |
57				 NVC0_SUBCHAN_SEMAPHORE_TRIGGER_YIELD);
58		FIRE_RING (chan);
59	}
60	return ret;
61}
62
63static int
64nvc0_fence_context_new(struct nouveau_channel *chan)
65{
66	int ret = nv84_fence_context_new(chan);
67	if (ret == 0) {
68		struct nv84_fence_chan *fctx = chan->fence;
69		fctx->base.emit32 = nvc0_fence_emit32;
70		fctx->base.sync32 = nvc0_fence_sync32;
71	}
72	return ret;
73}
74
75int
76nvc0_fence_create(struct nouveau_drm *drm)
77{
78	int ret = nv84_fence_create(drm);
79	if (ret == 0) {
80		struct nv84_fence_priv *priv = drm->fence;
81		priv->base.context_new = nvc0_fence_context_new;
82	}
83	return ret;
84}
85