1c39f472eSBen Skeggs /*
2c39f472eSBen Skeggs * Copyright (C) 2010 Francisco Jerez.
3c39f472eSBen Skeggs * All Rights Reserved.
4c39f472eSBen Skeggs *
5c39f472eSBen Skeggs * Permission is hereby granted, free of charge, to any person obtaining
6c39f472eSBen Skeggs * a copy of this software and associated documentation files (the
7c39f472eSBen Skeggs * "Software"), to deal in the Software without restriction, including
8c39f472eSBen Skeggs * without limitation the rights to use, copy, modify, merge, publish,
9c39f472eSBen Skeggs * distribute, sublicense, and/or sell copies of the Software, and to
10c39f472eSBen Skeggs * permit persons to whom the Software is furnished to do so, subject to
11c39f472eSBen Skeggs * the following conditions:
12c39f472eSBen Skeggs *
13c39f472eSBen Skeggs * The above copyright notice and this permission notice (including the
14c39f472eSBen Skeggs * next paragraph) shall be included in all copies or substantial
15c39f472eSBen Skeggs * portions of the Software.
16c39f472eSBen Skeggs *
17c39f472eSBen Skeggs * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
18c39f472eSBen Skeggs * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
19c39f472eSBen Skeggs * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
20c39f472eSBen Skeggs * IN NO EVENT SHALL THE COPYRIGHT OWNER(S) AND/OR ITS SUPPLIERS BE
21c39f472eSBen Skeggs * LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
22c39f472eSBen Skeggs * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
23c39f472eSBen Skeggs * WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
24c39f472eSBen Skeggs *
25c39f472eSBen Skeggs */
2603c8952fSBen Skeggs #include "priv.h"
27d36a99d2SBen Skeggs #include "ram.h"
28c39f472eSBen Skeggs
29c39f472eSBen Skeggs void
nv30_fb_tile_init(struct nvkm_fb * fb,int i,u32 addr,u32 size,u32 pitch,u32 flags,struct nvkm_fb_tile * tile)30b1e4553cSBen Skeggs nv30_fb_tile_init(struct nvkm_fb *fb, int i, u32 addr, u32 size, u32 pitch,
31639c308eSBen Skeggs u32 flags, struct nvkm_fb_tile *tile)
32c39f472eSBen Skeggs {
33c39f472eSBen Skeggs /* for performance, select alternate bank offset for zeta */
34c39f472eSBen Skeggs if (!(flags & 4)) {
35c39f472eSBen Skeggs tile->addr = (0 << 4);
36c39f472eSBen Skeggs } else {
3703c8952fSBen Skeggs if (fb->func->tile.comp) /* z compression */
3803c8952fSBen Skeggs fb->func->tile.comp(fb, i, size, flags, tile);
39c39f472eSBen Skeggs tile->addr = (1 << 4);
40c39f472eSBen Skeggs }
41c39f472eSBen Skeggs
42c39f472eSBen Skeggs tile->addr |= 0x00000001; /* enable */
43c39f472eSBen Skeggs tile->addr |= addr;
44c39f472eSBen Skeggs tile->limit = max(1u, addr + size) - 1;
45c39f472eSBen Skeggs tile->pitch = pitch;
46c39f472eSBen Skeggs }
47c39f472eSBen Skeggs
48c39f472eSBen Skeggs static void
nv30_fb_tile_comp(struct nvkm_fb * fb,int i,u32 size,u32 flags,struct nvkm_fb_tile * tile)49b1e4553cSBen Skeggs nv30_fb_tile_comp(struct nvkm_fb *fb, int i, u32 size, u32 flags,
50639c308eSBen Skeggs struct nvkm_fb_tile *tile)
51c39f472eSBen Skeggs {
52c39f472eSBen Skeggs u32 tiles = DIV_ROUND_UP(size, 0x40);
53b1e4553cSBen Skeggs u32 tags = round_up(tiles / fb->ram->parts, 0x40);
54f5cfbd99SBen Skeggs if (!nvkm_mm_head(&fb->tags.mm, 0, 1, tags, tags, 1, &tile->tag)) {
55c39f472eSBen Skeggs if (flags & 2) tile->zcomp |= 0x01000000; /* Z16 */
56c39f472eSBen Skeggs else tile->zcomp |= 0x02000000; /* Z24S8 */
57c39f472eSBen Skeggs tile->zcomp |= ((tile->tag->offset ) >> 6);
58c39f472eSBen Skeggs tile->zcomp |= ((tile->tag->offset + tags - 1) >> 6) << 12;
59c39f472eSBen Skeggs #ifdef __BIG_ENDIAN
60c39f472eSBen Skeggs tile->zcomp |= 0x10000000;
61c39f472eSBen Skeggs #endif
62c39f472eSBen Skeggs }
63c39f472eSBen Skeggs }
64c39f472eSBen Skeggs
65c39f472eSBen Skeggs static int
calc_bias(struct nvkm_fb * fb,int k,int i,int j)66b1e4553cSBen Skeggs calc_bias(struct nvkm_fb *fb, int k, int i, int j)
67c39f472eSBen Skeggs {
6803c8952fSBen Skeggs struct nvkm_device *device = fb->subdev.device;
69c39f472eSBen Skeggs int b = (device->chipset > 0x30 ?
706758745bSBen Skeggs nvkm_rd32(device, 0x122c + 0x10 * k + 0x4 * j) >>
716758745bSBen Skeggs (4 * (i ^ 1)) :
72c39f472eSBen Skeggs 0) & 0xf;
73c39f472eSBen Skeggs
74c39f472eSBen Skeggs return 2 * (b & 0x8 ? b - 0x10 : b);
75c39f472eSBen Skeggs }
76c39f472eSBen Skeggs
77c39f472eSBen Skeggs static int
calc_ref(struct nvkm_fb * fb,int l,int k,int i)78b1e4553cSBen Skeggs calc_ref(struct nvkm_fb *fb, int l, int k, int i)
79c39f472eSBen Skeggs {
80c39f472eSBen Skeggs int j, x = 0;
81c39f472eSBen Skeggs
82c39f472eSBen Skeggs for (j = 0; j < 4; j++) {
83b1e4553cSBen Skeggs int m = (l >> (8 * i) & 0xff) + calc_bias(fb, k, i, j);
84c39f472eSBen Skeggs
85c39f472eSBen Skeggs x |= (0x80 | clamp(m, 0, 0x1f)) << (8 * j);
86c39f472eSBen Skeggs }
87c39f472eSBen Skeggs
88c39f472eSBen Skeggs return x;
89c39f472eSBen Skeggs }
90c39f472eSBen Skeggs
9103c8952fSBen Skeggs void
nv30_fb_init(struct nvkm_fb * fb)9203c8952fSBen Skeggs nv30_fb_init(struct nvkm_fb *fb)
93c39f472eSBen Skeggs {
9403c8952fSBen Skeggs struct nvkm_device *device = fb->subdev.device;
9503c8952fSBen Skeggs int i, j;
96c39f472eSBen Skeggs
97c39f472eSBen Skeggs /* Init the memory timing regs at 0x10037c/0x1003ac */
98c39f472eSBen Skeggs if (device->chipset == 0x30 ||
99c39f472eSBen Skeggs device->chipset == 0x31 ||
100c39f472eSBen Skeggs device->chipset == 0x35) {
101c39f472eSBen Skeggs /* Related to ROP count */
102c39f472eSBen Skeggs int n = (device->chipset == 0x31 ? 2 : 4);
1036758745bSBen Skeggs int l = nvkm_rd32(device, 0x1003d0);
104c39f472eSBen Skeggs
105c39f472eSBen Skeggs for (i = 0; i < n; i++) {
106c39f472eSBen Skeggs for (j = 0; j < 3; j++)
1076758745bSBen Skeggs nvkm_wr32(device, 0x10037c + 0xc * i + 0x4 * j,
108b1e4553cSBen Skeggs calc_ref(fb, l, 0, j));
109c39f472eSBen Skeggs
110c39f472eSBen Skeggs for (j = 0; j < 2; j++)
1116758745bSBen Skeggs nvkm_wr32(device, 0x1003ac + 0x8 * i + 0x4 * j,
112b1e4553cSBen Skeggs calc_ref(fb, l, 1, j));
113c39f472eSBen Skeggs }
114c39f472eSBen Skeggs }
115c39f472eSBen Skeggs }
116c39f472eSBen Skeggs
11703c8952fSBen Skeggs static const struct nvkm_fb_func
11803c8952fSBen Skeggs nv30_fb = {
119af793b8cSBen Skeggs .tags = nv20_fb_tags,
120c39f472eSBen Skeggs .init = nv30_fb_init,
121c39f472eSBen Skeggs .tile.regions = 8,
122c39f472eSBen Skeggs .tile.init = nv30_fb_tile_init,
123c39f472eSBen Skeggs .tile.comp = nv30_fb_tile_comp,
124c39f472eSBen Skeggs .tile.fini = nv20_fb_tile_fini,
125c39f472eSBen Skeggs .tile.prog = nv20_fb_tile_prog,
12603c8952fSBen Skeggs .ram_new = nv20_ram_new,
12703c8952fSBen Skeggs };
12803c8952fSBen Skeggs
12903c8952fSBen Skeggs int
nv30_fb_new(struct nvkm_device * device,enum nvkm_subdev_type type,int inst,struct nvkm_fb ** pfb)130*b7a9369aSBen Skeggs nv30_fb_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst, struct nvkm_fb **pfb)
13103c8952fSBen Skeggs {
132*b7a9369aSBen Skeggs return nvkm_fb_new_(&nv30_fb, device, type, inst, pfb);
13303c8952fSBen Skeggs }
134