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 | |
42 | static int |
43 | nvc0_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 | |
58 | static int |
59 | nvc0_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 | |
74 | static int |
75 | nvc0_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 | |
86 | int |
87 | nvc0_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 | |