1 /*
2 * Copyright 2018 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 #include "priv.h"
23 #include "cgrp.h"
24 #include "chan.h"
25 #include "runl.h"
26
27 #include <core/memory.h>
28 #include <subdev/mc.h>
29 #include <subdev/vfn.h>
30
31 #include <nvif/class.h>
32
33 static u32
tu102_chan_doorbell_handle(struct nvkm_chan * chan)34 tu102_chan_doorbell_handle(struct nvkm_chan *chan)
35 {
36 return (chan->cgrp->runl->id << 16) | chan->id;
37 }
38
39 static void
tu102_chan_start(struct nvkm_chan * chan)40 tu102_chan_start(struct nvkm_chan *chan)
41 {
42 struct nvkm_device *device = chan->cgrp->runl->fifo->engine.subdev.device;
43
44 gk104_chan_start(chan);
45 nvkm_wr32(device, device->vfn->addr.user + 0x0090, chan->func->doorbell_handle(chan));
46 }
47
48 static const struct nvkm_chan_func
49 tu102_chan = {
50 .inst = &gf100_chan_inst,
51 .userd = &gv100_chan_userd,
52 .ramfc = &gv100_chan_ramfc,
53 .bind = gk104_chan_bind_inst,
54 .unbind = gk104_chan_unbind,
55 .start = tu102_chan_start,
56 .stop = gk104_chan_stop,
57 .preempt = gk110_chan_preempt,
58 .doorbell_handle = tu102_chan_doorbell_handle,
59 };
60
61 static bool
tu102_runl_pending(struct nvkm_runl * runl)62 tu102_runl_pending(struct nvkm_runl *runl)
63 {
64 struct nvkm_device *device = runl->fifo->engine.subdev.device;
65
66 return nvkm_rd32(device, 0x002b0c + (runl->id * 0x10)) & 0x00008000;
67 }
68
69 static void
tu102_runl_commit(struct nvkm_runl * runl,struct nvkm_memory * memory,u32 start,int count)70 tu102_runl_commit(struct nvkm_runl *runl, struct nvkm_memory *memory, u32 start, int count)
71 {
72 struct nvkm_device *device = runl->fifo->engine.subdev.device;
73 u64 addr = nvkm_memory_addr(memory) + start;
74 /*XXX: target? */
75
76 nvkm_wr32(device, 0x002b00 + (runl->id * 0x10), lower_32_bits(addr));
77 nvkm_wr32(device, 0x002b04 + (runl->id * 0x10), upper_32_bits(addr));
78 nvkm_wr32(device, 0x002b08 + (runl->id * 0x10), count);
79 }
80
81 static const struct nvkm_runl_func
82 tu102_runl = {
83 .runqs = 2,
84 .size = 16,
85 .update = nv50_runl_update,
86 .insert_cgrp = gv100_runl_insert_cgrp,
87 .insert_chan = gv100_runl_insert_chan,
88 .commit = tu102_runl_commit,
89 .wait = nv50_runl_wait,
90 .pending = tu102_runl_pending,
91 .block = gk104_runl_block,
92 .allow = gk104_runl_allow,
93 .preempt = gv100_runl_preempt,
94 .preempt_pending = gf100_runl_preempt_pending,
95 };
96
97 static const struct nvkm_enum
98 tu102_fifo_mmu_fault_engine[] = {
99 { 0x01, "DISPLAY" },
100 { 0x03, "PTP" },
101 { 0x06, "PWR_PMU" },
102 { 0x08, "IFB", NULL, NVKM_ENGINE_IFB },
103 { 0x09, "PERF" },
104 { 0x1f, "PHYSICAL" },
105 { 0x20, "HOST0" },
106 { 0x21, "HOST1" },
107 { 0x22, "HOST2" },
108 { 0x23, "HOST3" },
109 { 0x24, "HOST4" },
110 { 0x25, "HOST5" },
111 { 0x26, "HOST6" },
112 { 0x27, "HOST7" },
113 { 0x28, "HOST8" },
114 { 0x29, "HOST9" },
115 { 0x2a, "HOST10" },
116 { 0x2b, "HOST11" },
117 { 0x2c, "HOST12" },
118 { 0x2d, "HOST13" },
119 { 0x2e, "HOST14" },
120 { 0x80, "BAR1", NULL, NVKM_SUBDEV_BAR },
121 { 0xc0, "BAR2", NULL, NVKM_SUBDEV_INSTMEM },
122 {}
123 };
124
125 const struct nvkm_fifo_func_mmu_fault
126 tu102_fifo_mmu_fault = {
127 .recover = gf100_fifo_mmu_fault_recover,
128 .access = gv100_fifo_mmu_fault_access,
129 .engine = tu102_fifo_mmu_fault_engine,
130 .reason = gv100_fifo_mmu_fault_reason,
131 .hubclient = gv100_fifo_mmu_fault_hubclient,
132 .gpcclient = gv100_fifo_mmu_fault_gpcclient,
133 };
134
135 void
tu102_fifo_intr_ctxsw_timeout_info(struct nvkm_engn * engn,u32 info)136 tu102_fifo_intr_ctxsw_timeout_info(struct nvkm_engn *engn, u32 info)
137 {
138 struct nvkm_runl *runl = engn->runl;
139 struct nvkm_cgrp *cgrp;
140 unsigned long flags;
141
142 /* Check that engine hasn't become unstuck since timeout raised. */
143 ENGN_DEBUG(engn, "CTXSW_TIMEOUT %08x", info);
144 if (info & 0xc0000000)
145 return;
146
147 /* Determine channel group the engine is stuck on, and schedule recovery. */
148 switch (info & 0x0000c000) {
149 case 0x00004000: /* LOAD */
150 cgrp = nvkm_runl_cgrp_get_cgid(runl, info & 0x3fff0000, &flags);
151 break;
152 case 0x00008000: /* SAVE */
153 case 0x0000c000: /* SWITCH */
154 cgrp = nvkm_runl_cgrp_get_cgid(runl, info & 0x00003fff, &flags);
155 break;
156 default:
157 cgrp = NULL;
158 break;
159 }
160
161 if (!WARN_ON(!cgrp)) {
162 nvkm_runl_rc_cgrp(cgrp);
163 nvkm_cgrp_put(&cgrp, flags);
164 }
165 }
166
167 static void
tu102_fifo_intr_ctxsw_timeout(struct nvkm_fifo * fifo)168 tu102_fifo_intr_ctxsw_timeout(struct nvkm_fifo *fifo)
169 {
170 struct nvkm_device *device = fifo->engine.subdev.device;
171 struct nvkm_runl *runl;
172 struct nvkm_engn *engn;
173 u32 engm = nvkm_rd32(device, 0x002a30);
174 u32 info;
175
176 nvkm_runl_foreach(runl, fifo) {
177 nvkm_runl_foreach_engn_cond(engn, runl, engm & BIT(engn->id)) {
178 info = nvkm_rd32(device, 0x003200 + (engn->id * 4));
179 tu102_fifo_intr_ctxsw_timeout_info(engn, info);
180 }
181 }
182
183 nvkm_wr32(device, 0x002a30, engm);
184 }
185
186 static void
tu102_fifo_intr_sched(struct nvkm_fifo * fifo)187 tu102_fifo_intr_sched(struct nvkm_fifo *fifo)
188 {
189 struct nvkm_subdev *subdev = &fifo->engine.subdev;
190 u32 intr = nvkm_rd32(subdev->device, 0x00254c);
191 u32 code = intr & 0x000000ff;
192
193 nvkm_error(subdev, "SCHED_ERROR %02x\n", code);
194 }
195
196 static irqreturn_t
tu102_fifo_intr(struct nvkm_inth * inth)197 tu102_fifo_intr(struct nvkm_inth *inth)
198 {
199 struct nvkm_fifo *fifo = container_of(inth, typeof(*fifo), engine.subdev.inth);
200 struct nvkm_subdev *subdev = &fifo->engine.subdev;
201 struct nvkm_device *device = subdev->device;
202 u32 mask = nvkm_rd32(device, 0x002140);
203 u32 stat = nvkm_rd32(device, 0x002100) & mask;
204
205 if (stat & 0x00000001) {
206 gk104_fifo_intr_bind(fifo);
207 nvkm_wr32(device, 0x002100, 0x00000001);
208 stat &= ~0x00000001;
209 }
210
211 if (stat & 0x00000002) {
212 tu102_fifo_intr_ctxsw_timeout(fifo);
213 stat &= ~0x00000002;
214 }
215
216 if (stat & 0x00000100) {
217 tu102_fifo_intr_sched(fifo);
218 nvkm_wr32(device, 0x002100, 0x00000100);
219 stat &= ~0x00000100;
220 }
221
222 if (stat & 0x00010000) {
223 gk104_fifo_intr_chsw(fifo);
224 nvkm_wr32(device, 0x002100, 0x00010000);
225 stat &= ~0x00010000;
226 }
227
228 if (stat & 0x20000000) {
229 if (gf100_fifo_intr_pbdma(fifo))
230 stat &= ~0x20000000;
231 }
232
233 if (stat & 0x40000000) {
234 gk104_fifo_intr_runlist(fifo);
235 stat &= ~0x40000000;
236 }
237
238 if (stat & 0x80000000) {
239 nvkm_wr32(device, 0x002100, 0x80000000);
240 nvkm_event_ntfy(&fifo->nonstall.event, 0, NVKM_FIFO_NONSTALL_EVENT);
241 stat &= ~0x80000000;
242 }
243
244 if (stat) {
245 nvkm_error(subdev, "INTR %08x\n", stat);
246 spin_lock(&fifo->lock);
247 nvkm_mask(device, 0x002140, stat, 0x00000000);
248 spin_unlock(&fifo->lock);
249 nvkm_wr32(device, 0x002100, stat);
250 }
251
252 return IRQ_HANDLED;
253 }
254
255 static void
tu102_fifo_init_pbdmas(struct nvkm_fifo * fifo,u32 mask)256 tu102_fifo_init_pbdmas(struct nvkm_fifo *fifo, u32 mask)
257 {
258 /* Not directly related to PBDMAs, but, enables doorbell to function. */
259 nvkm_mask(fifo->engine.subdev.device, 0xb65000, 0x80000000, 0x80000000);
260 }
261
262 static const struct nvkm_fifo_func
263 tu102_fifo = {
264 .chid_nr = gm200_fifo_chid_nr,
265 .chid_ctor = gk110_fifo_chid_ctor,
266 .runq_nr = gm200_fifo_runq_nr,
267 .runl_ctor = gk104_fifo_runl_ctor,
268 .init = gk104_fifo_init,
269 .init_pbdmas = tu102_fifo_init_pbdmas,
270 .intr = tu102_fifo_intr,
271 .mmu_fault = &tu102_fifo_mmu_fault,
272 .nonstall = &gf100_fifo_nonstall,
273 .runl = &tu102_runl,
274 .runq = &gv100_runq,
275 .engn = &gv100_engn,
276 .engn_ce = &gv100_engn_ce,
277 .cgrp = {{ 0, 0, KEPLER_CHANNEL_GROUP_A }, &gk110_cgrp, .force = true },
278 .chan = {{ 0, 0, TURING_CHANNEL_GPFIFO_A }, &tu102_chan },
279 };
280
281 int
tu102_fifo_new(struct nvkm_device * device,enum nvkm_subdev_type type,int inst,struct nvkm_fifo ** pfifo)282 tu102_fifo_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
283 struct nvkm_fifo **pfifo)
284 {
285 return nvkm_fifo_new_(&tu102_fifo, device, type, inst, pfifo);
286 }
287