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#include "nouveau_drv.h"
25#include "nouveau_dma.h"
26#include "nouveau_fence.h"
27
28#include "nv50_display.h"
29
30#include <nvif/push906f.h>
31
32#include <nvhw/class/cl906f.h>
33
34static int
35nvc0_fence_emit32(struct nouveau_channel *chan, u64 virtual, u32 sequence)
36{
37	struct nvif_push *push = chan->chan.push;
38	int ret = PUSH_WAIT(push, 6);
39	if (ret == 0) {
40		PUSH_MTHD(push, NV906F, SEMAPHOREA,
41			  NVVAL(NV906F, SEMAPHOREA, OFFSET_UPPER, upper_32_bits(virtual)),
42
43					SEMAPHOREB, lower_32_bits(virtual),
44					SEMAPHOREC, sequence,
45
46					SEMAPHORED,
47			  NVDEF(NV906F, SEMAPHORED, OPERATION, RELEASE) |
48			  NVDEF(NV906F, SEMAPHORED, RELEASE_WFI, EN) |
49			  NVDEF(NV906F, SEMAPHORED, RELEASE_SIZE, 16BYTE),
50
51					NON_STALL_INTERRUPT, 0);
52		PUSH_KICK(push);
53	}
54	return ret;
55}
56
57static int
58nvc0_fence_sync32(struct nouveau_channel *chan, u64 virtual, u32 sequence)
59{
60	struct nvif_push *push = chan->chan.push;
61	int ret = PUSH_WAIT(push, 5);
62	if (ret == 0) {
63		PUSH_MTHD(push, NV906F, SEMAPHOREA,
64			  NVVAL(NV906F, SEMAPHOREA, OFFSET_UPPER, upper_32_bits(virtual)),
65
66					SEMAPHOREB, lower_32_bits(virtual),
67					SEMAPHOREC, sequence,
68
69					SEMAPHORED,
70			  NVDEF(NV906F, SEMAPHORED, OPERATION, ACQ_GEQ) |
71			  NVDEF(NV906F, SEMAPHORED, ACQUIRE_SWITCH, ENABLED));
72		PUSH_KICK(push);
73	}
74	return ret;
75}
76
77static int
78nvc0_fence_context_new(struct nouveau_channel *chan)
79{
80	int ret = nv84_fence_context_new(chan);
81	if (ret == 0) {
82		struct nv84_fence_chan *fctx = chan->fence;
83		fctx->base.emit32 = nvc0_fence_emit32;
84		fctx->base.sync32 = nvc0_fence_sync32;
85	}
86	return ret;
87}
88
89int
90nvc0_fence_create(struct nouveau_drm *drm)
91{
92	int ret = nv84_fence_create(drm);
93	if (ret == 0) {
94		struct nv84_fence_priv *priv = drm->fence;
95		priv->base.context_new = nvc0_fence_context_new;
96	}
97	return ret;
98}