1 /*
2  * Copyright 2016 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 "priv.h"
25 #include "cgrp.h"
26 #include "chan.h"
27 #include "chid.h"
28 #include "runl.h"
29 
30 #include <core/memory.h>
31 #include <subdev/timer.h>
32 
33 #include <nvif/class.h>
34 
35 void
36 gk110_chan_preempt(struct nvkm_chan *chan)
37 {
38 	struct nvkm_cgrp *cgrp = chan->cgrp;
39 
40 	if (cgrp->hw) {
41 		cgrp->func->preempt(cgrp);
42 		return;
43 	}
44 
45 	gf100_chan_preempt(chan);
46 }
47 
48 const struct nvkm_chan_func
49 gk110_chan = {
50 	.inst = &gf100_chan_inst,
51 	.userd = &gk104_chan_userd,
52 	.ramfc = &gk104_chan_ramfc,
53 	.bind = gk104_chan_bind,
54 	.unbind = gk104_chan_unbind,
55 	.start = gk104_chan_start,
56 	.stop = gk104_chan_stop,
57 	.preempt = gk110_chan_preempt,
58 };
59 
60 static void
61 gk110_cgrp_preempt(struct nvkm_cgrp *cgrp)
62 {
63 	nvkm_wr32(cgrp->runl->fifo->engine.subdev.device, 0x002634, 0x01000000 | cgrp->id);
64 }
65 
66 const struct nvkm_cgrp_func
67 gk110_cgrp = {
68 	.preempt = gk110_cgrp_preempt,
69 };
70 
71 void
72 gk110_runl_insert_cgrp(struct nvkm_cgrp *cgrp, struct nvkm_memory *memory, u64 offset)
73 {
74 	nvkm_wo32(memory, offset + 0, (cgrp->chan_nr << 26) | (128 << 18) |
75 				      (3 << 14) | 0x00002000 | cgrp->id);
76 	nvkm_wo32(memory, offset + 4, 0x00000000);
77 }
78 
79 const struct nvkm_runl_func
80 gk110_runl = {
81 	.size = 8,
82 	.update = nv50_runl_update,
83 	.insert_cgrp = gk110_runl_insert_cgrp,
84 	.insert_chan = gk104_runl_insert_chan,
85 	.commit = gk104_runl_commit,
86 	.wait = nv50_runl_wait,
87 	.pending = gk104_runl_pending,
88 	.block = gk104_runl_block,
89 	.allow = gk104_runl_allow,
90 	.fault_clear = gk104_runl_fault_clear,
91 	.preempt_pending = gf100_runl_preempt_pending,
92 };
93 
94 int
95 gk110_fifo_chid_ctor(struct nvkm_fifo *fifo, int nr)
96 {
97 	int ret;
98 
99 	ret = nvkm_chid_new(&nvkm_chan_event, &fifo->engine.subdev, nr, 0, nr, &fifo->cgid);
100 	if (ret)
101 		return ret;
102 
103 	return gf100_fifo_chid_ctor(fifo, nr);
104 }
105 
106 static const struct nvkm_fifo_func
107 gk110_fifo = {
108 	.chid_nr = gk104_fifo_chid_nr,
109 	.chid_ctor = gk110_fifo_chid_ctor,
110 	.runq_nr = gf100_fifo_runq_nr,
111 	.runl_ctor = gk104_fifo_runl_ctor,
112 	.init = gk104_fifo_init,
113 	.init_pbdmas = gk104_fifo_init_pbdmas,
114 	.intr = gk104_fifo_intr,
115 	.intr_mmu_fault_unit = gf100_fifo_intr_mmu_fault_unit,
116 	.intr_ctxsw_timeout = gf100_fifo_intr_ctxsw_timeout,
117 	.mmu_fault = &gk104_fifo_mmu_fault,
118 	.nonstall = &gf100_fifo_nonstall,
119 	.runl = &gk110_runl,
120 	.runq = &gk104_runq,
121 	.engn = &gk104_engn,
122 	.engn_ce = &gk104_engn_ce,
123 	.cgrp = {{ 0, 0, KEPLER_CHANNEL_GROUP_A  }, &gk110_cgrp },
124 	.chan = {{ 0, 0, KEPLER_CHANNEL_GPFIFO_B }, &gk110_chan },
125 };
126 
127 int
128 gk110_fifo_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
129 	       struct nvkm_fifo **pfifo)
130 {
131 	return nvkm_fifo_new_(&gk110_fifo, device, type, inst, pfifo);
132 }
133