1 /* $NetBSD: nouveau_nvkm_engine_sw_gf100.c,v 1.3 2021/12/18 23:45:37 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 #include <sys/cdefs.h>
27 __KERNEL_RCSID(0, "$NetBSD: nouveau_nvkm_engine_sw_gf100.c,v 1.3 2021/12/18 23:45:37 riastradh Exp $");
28
29 #include "nv50.h"
30
31 #include <core/gpuobj.h>
32 #include <subdev/bar.h>
33 #include <engine/disp.h>
34 #include <engine/fifo.h>
35
36 #include <nvif/class.h>
37 #include <nvif/event.h>
38
39 /*******************************************************************************
40 * software context
41 ******************************************************************************/
42
43 static int
gf100_sw_chan_vblsem_release(struct nvkm_notify * notify)44 gf100_sw_chan_vblsem_release(struct nvkm_notify *notify)
45 {
46 struct nv50_sw_chan *chan =
47 container_of(notify, typeof(*chan), vblank.notify[notify->index]);
48 struct nvkm_sw *sw = chan->base.sw;
49 struct nvkm_device *device = sw->engine.subdev.device;
50 u32 inst = chan->base.fifo->inst->addr >> 12;
51
52 nvkm_wr32(device, 0x001718, 0x80000000 | inst);
53 nvkm_bar_flush(device->bar);
54 nvkm_wr32(device, 0x06000c, upper_32_bits(chan->vblank.offset));
55 nvkm_wr32(device, 0x060010, lower_32_bits(chan->vblank.offset));
56 nvkm_wr32(device, 0x060014, chan->vblank.value);
57
58 return NVKM_NOTIFY_DROP;
59 }
60
61 static bool
gf100_sw_chan_mthd(struct nvkm_sw_chan * base,int subc,u32 mthd,u32 data)62 gf100_sw_chan_mthd(struct nvkm_sw_chan *base, int subc, u32 mthd, u32 data)
63 {
64 struct nv50_sw_chan *chan = nv50_sw_chan(base);
65 struct nvkm_engine *engine = chan->base.object.engine;
66 struct nvkm_device *device = engine->subdev.device;
67 switch (mthd) {
68 case 0x0400:
69 chan->vblank.offset &= 0x00ffffffffULL;
70 chan->vblank.offset |= (u64)data << 32;
71 return true;
72 case 0x0404:
73 chan->vblank.offset &= 0xff00000000ULL;
74 chan->vblank.offset |= data;
75 return true;
76 case 0x0408:
77 chan->vblank.value = data;
78 return true;
79 case 0x040c:
80 if (data < device->disp->vblank.index_nr) {
81 nvkm_notify_get(&chan->vblank.notify[data]);
82 return true;
83 }
84 break;
85 case 0x600: /* MP.PM_UNK000 */
86 nvkm_wr32(device, 0x419e00, data);
87 return true;
88 case 0x644: /* MP.TRAP_WARP_ERROR_EN */
89 if (!(data & ~0x001ffffe)) {
90 nvkm_wr32(device, 0x419e44, data);
91 return true;
92 }
93 break;
94 case 0x6ac: /* MP.PM_UNK0AC */
95 nvkm_wr32(device, 0x419eac, data);
96 return true;
97 default:
98 break;
99 }
100 return false;
101 }
102
103 static const struct nvkm_sw_chan_func
104 gf100_sw_chan = {
105 .dtor = nv50_sw_chan_dtor,
106 .mthd = gf100_sw_chan_mthd,
107 };
108
109 static int
gf100_sw_chan_new(struct nvkm_sw * sw,struct nvkm_fifo_chan * fifoch,const struct nvkm_oclass * oclass,struct nvkm_object ** pobject)110 gf100_sw_chan_new(struct nvkm_sw *sw, struct nvkm_fifo_chan *fifoch,
111 const struct nvkm_oclass *oclass,
112 struct nvkm_object **pobject)
113 {
114 struct nvkm_disp *disp = sw->engine.subdev.device->disp;
115 struct nv50_sw_chan *chan;
116 int ret, i;
117
118 if (!(chan = kzalloc(sizeof(*chan), GFP_KERNEL)))
119 return -ENOMEM;
120 *pobject = &chan->base.object;
121
122 ret = nvkm_sw_chan_ctor(&gf100_sw_chan, sw, fifoch, oclass,
123 &chan->base);
124 if (ret)
125 return ret;
126
127 for (i = 0; disp && i < disp->vblank.index_nr; i++) {
128 ret = nvkm_notify_init(NULL, &disp->vblank,
129 gf100_sw_chan_vblsem_release, false,
130 &(struct nvif_notify_head_req_v0) {
131 .head = i,
132 },
133 sizeof(struct nvif_notify_head_req_v0),
134 sizeof(struct nvif_notify_head_rep_v0),
135 &chan->vblank.notify[i]);
136 if (ret)
137 return ret;
138 }
139
140 return 0;
141 }
142
143 /*******************************************************************************
144 * software engine/subdev functions
145 ******************************************************************************/
146
147 static const struct nvkm_sw_func
148 gf100_sw = {
149 .chan_new = gf100_sw_chan_new,
150 .sclass = {
151 { nvkm_nvsw_new, { -1, -1, NVIF_CLASS_SW_GF100 } },
152 {}
153 }
154 };
155
156 int
gf100_sw_new(struct nvkm_device * device,int index,struct nvkm_sw ** psw)157 gf100_sw_new(struct nvkm_device *device, int index, struct nvkm_sw **psw)
158 {
159 return nvkm_sw_new_(&gf100_sw, device, index, psw);
160 }
161