1 /*
2 * Copyright 2014 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
26 #include <subdev/fb.h>
27 #include <subdev/timer.h>
28
29 void
gm107_ltc_cbc_clear(struct nvkm_ltc * ltc,u32 start,u32 limit)30 gm107_ltc_cbc_clear(struct nvkm_ltc *ltc, u32 start, u32 limit)
31 {
32 struct nvkm_device *device = ltc->subdev.device;
33 nvkm_wr32(device, 0x17e270, start);
34 nvkm_wr32(device, 0x17e274, limit);
35 nvkm_mask(device, 0x17e26c, 0x00000000, 0x00000004);
36 }
37
38 void
gm107_ltc_cbc_wait(struct nvkm_ltc * ltc)39 gm107_ltc_cbc_wait(struct nvkm_ltc *ltc)
40 {
41 struct nvkm_device *device = ltc->subdev.device;
42 int c, s;
43 for (c = 0; c < ltc->ltc_nr; c++) {
44 for (s = 0; s < ltc->lts_nr; s++) {
45 const u32 addr = 0x14046c + (c * 0x2000) + (s * 0x200);
46 nvkm_wait_msec(device, 2000, addr,
47 0x00000004, 0x00000000);
48 }
49 }
50 }
51
52 void
gm107_ltc_zbc_clear_color(struct nvkm_ltc * ltc,int i,const u32 color[4])53 gm107_ltc_zbc_clear_color(struct nvkm_ltc *ltc, int i, const u32 color[4])
54 {
55 struct nvkm_device *device = ltc->subdev.device;
56 nvkm_mask(device, 0x17e338, 0x0000000f, i);
57 nvkm_wr32(device, 0x17e33c, color[0]);
58 nvkm_wr32(device, 0x17e340, color[1]);
59 nvkm_wr32(device, 0x17e344, color[2]);
60 nvkm_wr32(device, 0x17e348, color[3]);
61 }
62
63 void
gm107_ltc_zbc_clear_depth(struct nvkm_ltc * ltc,int i,const u32 depth)64 gm107_ltc_zbc_clear_depth(struct nvkm_ltc *ltc, int i, const u32 depth)
65 {
66 struct nvkm_device *device = ltc->subdev.device;
67 nvkm_mask(device, 0x17e338, 0x0000000f, i);
68 nvkm_wr32(device, 0x17e34c, depth);
69 }
70
71 void
gm107_ltc_intr_lts(struct nvkm_ltc * ltc,int c,int s)72 gm107_ltc_intr_lts(struct nvkm_ltc *ltc, int c, int s)
73 {
74 struct nvkm_subdev *subdev = <c->subdev;
75 struct nvkm_device *device = subdev->device;
76 u32 base = 0x140400 + (c * 0x2000) + (s * 0x200);
77 u32 intr = nvkm_rd32(device, base + 0x00c);
78 u16 stat = intr & 0x0000ffff;
79 char msg[128];
80
81 if (stat) {
82 nvkm_snprintbf(msg, sizeof(msg), gf100_ltc_lts_intr_name, stat);
83 nvkm_error(subdev, "LTC%d_LTS%d: %08x [%s]\n", c, s, intr, msg);
84 }
85
86 nvkm_wr32(device, base + 0x00c, intr);
87 }
88
89 void
gm107_ltc_intr(struct nvkm_ltc * ltc)90 gm107_ltc_intr(struct nvkm_ltc *ltc)
91 {
92 struct nvkm_device *device = ltc->subdev.device;
93 u32 mask;
94
95 mask = nvkm_rd32(device, 0x00017c);
96 while (mask) {
97 u32 s, c = __ffs(mask);
98 for (s = 0; s < ltc->lts_nr; s++)
99 gm107_ltc_intr_lts(ltc, c, s);
100 mask &= ~(1 << c);
101 }
102 }
103
104 static int
gm107_ltc_oneinit(struct nvkm_ltc * ltc)105 gm107_ltc_oneinit(struct nvkm_ltc *ltc)
106 {
107 struct nvkm_device *device = ltc->subdev.device;
108 const u32 parts = nvkm_rd32(device, 0x022438);
109 const u32 mask = nvkm_rd32(device, 0x021c14);
110 const u32 slice = nvkm_rd32(device, 0x17e280) >> 28;
111 int i;
112
113 for (i = 0; i < parts; i++) {
114 if (!(mask & (1 << i)))
115 ltc->ltc_nr++;
116 }
117 ltc->lts_nr = slice;
118
119 return gf100_ltc_oneinit_tag_ram(ltc);
120 }
121
122 static void
gm107_ltc_init(struct nvkm_ltc * ltc)123 gm107_ltc_init(struct nvkm_ltc *ltc)
124 {
125 struct nvkm_device *device = ltc->subdev.device;
126 u32 lpg128 = !(nvkm_rd32(device, 0x100c80) & 0x00000001);
127
128 nvkm_wr32(device, 0x17e27c, ltc->ltc_nr);
129 nvkm_wr32(device, 0x17e278, ltc->tag_base);
130 nvkm_mask(device, 0x17e264, 0x00000002, lpg128 ? 0x00000002 : 0x00000000);
131 }
132
133 static const struct nvkm_ltc_func
134 gm107_ltc = {
135 .oneinit = gm107_ltc_oneinit,
136 .init = gm107_ltc_init,
137 .intr = gm107_ltc_intr,
138 .cbc_clear = gm107_ltc_cbc_clear,
139 .cbc_wait = gm107_ltc_cbc_wait,
140 .zbc = 16,
141 .zbc_clear_color = gm107_ltc_zbc_clear_color,
142 .zbc_clear_depth = gm107_ltc_zbc_clear_depth,
143 .invalidate = gf100_ltc_invalidate,
144 .flush = gf100_ltc_flush,
145 };
146
147 int
gm107_ltc_new(struct nvkm_device * device,enum nvkm_subdev_type type,int inst,struct nvkm_ltc ** pltc)148 gm107_ltc_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
149 struct nvkm_ltc **pltc)
150 {
151 return nvkm_ltc_new_(&gm107_ltc, device, type, inst, pltc);
152 }
153