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 "nv50.h"
25
26 #include <subdev/timer.h>
27
28 #include <nvif/class.h>
29
30 static const struct nvkm_bitfield nv50_gr_status[] = {
31 { 0x00000001, "BUSY" }, /* set when any bit is set */
32 { 0x00000002, "DISPATCH" },
33 { 0x00000004, "UNK2" },
34 { 0x00000008, "UNK3" },
35 { 0x00000010, "UNK4" },
36 { 0x00000020, "UNK5" },
37 { 0x00000040, "M2MF" },
38 { 0x00000080, "UNK7" },
39 { 0x00000100, "CTXPROG" },
40 { 0x00000200, "VFETCH" },
41 { 0x00000400, "CCACHE_PREGEOM" },
42 { 0x00000800, "STRMOUT_VATTR_POSTGEOM" },
43 { 0x00001000, "VCLIP" },
44 { 0x00002000, "RATTR_APLANE" },
45 { 0x00004000, "TRAST" },
46 { 0x00008000, "CLIPID" },
47 { 0x00010000, "ZCULL" },
48 { 0x00020000, "ENG2D" },
49 { 0x00040000, "RMASK" },
50 { 0x00080000, "TPC_RAST" },
51 { 0x00100000, "TPC_PROP" },
52 { 0x00200000, "TPC_TEX" },
53 { 0x00400000, "TPC_GEOM" },
54 { 0x00800000, "TPC_MP" },
55 { 0x01000000, "ROP" },
56 {}
57 };
58
59 static const struct nvkm_bitfield
60 nv50_gr_vstatus_0[] = {
61 { 0x01, "VFETCH" },
62 { 0x02, "CCACHE" },
63 { 0x04, "PREGEOM" },
64 { 0x08, "POSTGEOM" },
65 { 0x10, "VATTR" },
66 { 0x20, "STRMOUT" },
67 { 0x40, "VCLIP" },
68 {}
69 };
70
71 static const struct nvkm_bitfield
72 nv50_gr_vstatus_1[] = {
73 { 0x01, "TPC_RAST" },
74 { 0x02, "TPC_PROP" },
75 { 0x04, "TPC_TEX" },
76 { 0x08, "TPC_GEOM" },
77 { 0x10, "TPC_MP" },
78 {}
79 };
80
81 static const struct nvkm_bitfield
82 nv50_gr_vstatus_2[] = {
83 { 0x01, "RATTR" },
84 { 0x02, "APLANE" },
85 { 0x04, "TRAST" },
86 { 0x08, "CLIPID" },
87 { 0x10, "ZCULL" },
88 { 0x20, "ENG2D" },
89 { 0x40, "RMASK" },
90 { 0x80, "ROP" },
91 {}
92 };
93
94 static void
nvkm_gr_vstatus_print(struct nv50_gr * gr,int r,const struct nvkm_bitfield * units,u32 status)95 nvkm_gr_vstatus_print(struct nv50_gr *gr, int r,
96 const struct nvkm_bitfield *units, u32 status)
97 {
98 struct nvkm_subdev *subdev = &gr->base.engine.subdev;
99 u32 stat = status;
100 u8 mask = 0x00;
101 char msg[64];
102 int i;
103
104 for (i = 0; units[i].name && status; i++) {
105 if ((status & 7) == 1)
106 mask |= (1 << i);
107 status >>= 3;
108 }
109
110 nvkm_snprintbf(msg, sizeof(msg), units, mask);
111 nvkm_error(subdev, "PGRAPH_VSTATUS%d: %08x [%s]\n", r, stat, msg);
112 }
113
114 int
g84_gr_tlb_flush(struct nvkm_gr * base)115 g84_gr_tlb_flush(struct nvkm_gr *base)
116 {
117 struct nv50_gr *gr = nv50_gr(base);
118 struct nvkm_subdev *subdev = &gr->base.engine.subdev;
119 struct nvkm_device *device = subdev->device;
120 struct nvkm_timer *tmr = device->timer;
121 bool idle, timeout = false;
122 unsigned long flags;
123 char status[128];
124 u64 start;
125 u32 tmp;
126
127 spin_lock_irqsave(&gr->lock, flags);
128 nvkm_mask(device, 0x400500, 0x00000001, 0x00000000);
129
130 start = nvkm_timer_read(tmr);
131 do {
132 idle = true;
133
134 for (tmp = nvkm_rd32(device, 0x400380); tmp && idle; tmp >>= 3) {
135 if ((tmp & 7) == 1)
136 idle = false;
137 }
138
139 for (tmp = nvkm_rd32(device, 0x400384); tmp && idle; tmp >>= 3) {
140 if ((tmp & 7) == 1)
141 idle = false;
142 }
143
144 for (tmp = nvkm_rd32(device, 0x400388); tmp && idle; tmp >>= 3) {
145 if ((tmp & 7) == 1)
146 idle = false;
147 }
148 } while (!idle &&
149 !(timeout = nvkm_timer_read(tmr) - start > 2000000000));
150
151 if (timeout) {
152 nvkm_error(subdev, "PGRAPH TLB flush idle timeout fail\n");
153
154 tmp = nvkm_rd32(device, 0x400700);
155 nvkm_snprintbf(status, sizeof(status), nv50_gr_status, tmp);
156 nvkm_error(subdev, "PGRAPH_STATUS %08x [%s]\n", tmp, status);
157
158 nvkm_gr_vstatus_print(gr, 0, nv50_gr_vstatus_0,
159 nvkm_rd32(device, 0x400380));
160 nvkm_gr_vstatus_print(gr, 1, nv50_gr_vstatus_1,
161 nvkm_rd32(device, 0x400384));
162 nvkm_gr_vstatus_print(gr, 2, nv50_gr_vstatus_2,
163 nvkm_rd32(device, 0x400388));
164 }
165
166
167 nvkm_wr32(device, 0x100c80, 0x00000001);
168 nvkm_msec(device, 2000,
169 if (!(nvkm_rd32(device, 0x100c80) & 0x00000001))
170 break;
171 );
172 nvkm_mask(device, 0x400500, 0x00000001, 0x00000001);
173 spin_unlock_irqrestore(&gr->lock, flags);
174 return timeout ? -EBUSY : 0;
175 }
176
177 static const struct nvkm_gr_func
178 g84_gr = {
179 .init = nv50_gr_init,
180 .intr = nv50_gr_intr,
181 .chan_new = nv50_gr_chan_new,
182 .tlb_flush = g84_gr_tlb_flush,
183 .units = nv50_gr_units,
184 .sclass = {
185 { -1, -1, NV_NULL_CLASS, &nv50_gr_object },
186 { -1, -1, NV50_TWOD, &nv50_gr_object },
187 { -1, -1, NV50_MEMORY_TO_MEMORY_FORMAT, &nv50_gr_object },
188 { -1, -1, NV50_COMPUTE, &nv50_gr_object },
189 { -1, -1, G82_TESLA, &nv50_gr_object },
190 {}
191 }
192 };
193
194 int
g84_gr_new(struct nvkm_device * device,enum nvkm_subdev_type type,int inst,struct nvkm_gr ** pgr)195 g84_gr_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, struct nvkm_gr **pgr)
196 {
197 return nv50_gr_new_(&g84_gr, device, type, inst, pgr);
198 }
199