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 <bskeggs@redhat.com>
23  */
24 #include "ctxgf100.h"
25 
26 #include <subdev/fb.h>
27 
28 /*******************************************************************************
29  * PGRAPH context implementation
30  ******************************************************************************/
31 
32 void
33 gp102_grctx_generate_attrib(struct gf100_grctx *info)
34 {
35 	struct gf100_gr *gr = info->gr;
36 	const struct gf100_grctx_func *grctx = gr->func->grctx;
37 	const u32  alpha = grctx->alpha_nr;
38 	const u32 attrib = grctx->attrib_nr;
39 	const u32 pertpc = 0x20 * (grctx->attrib_nr_max + grctx->alpha_nr_max);
40 	const u32   size = roundup(gr->tpc_total * pertpc, 0x80);
41 	const u32 access = NV_MEM_ACCESS_RW;
42 	const int s = 12;
43 	const int b = mmio_vram(info, size, (1 << s), access);
44 	const int max_batches = 0xffff;
45 	u32 ao = 0;
46 	u32 bo = ao + grctx->alpha_nr_max * gr->tpc_total;
47 	int gpc, ppc, n = 0;
48 
49 	mmio_refn(info, 0x418810, 0x80000000, s, b);
50 	mmio_refn(info, 0x419848, 0x10000000, s, b);
51 	mmio_refn(info, 0x419c2c, 0x10000000, s, b);
52 	mmio_refn(info, 0x419b00, 0x00000000, s, b);
53 	mmio_wr32(info, 0x419b04, 0x80000000 | size >> 7);
54 	mmio_wr32(info, 0x405830, attrib);
55 	mmio_wr32(info, 0x40585c, alpha);
56 	mmio_wr32(info, 0x4064c4, ((alpha / 4) << 16) | max_batches);
57 
58 	for (gpc = 0; gpc < gr->gpc_nr; gpc++) {
59 		for (ppc = 0; ppc < gr->ppc_nr[gpc]; ppc++, n++) {
60 			const u32 as =  alpha * gr->ppc_tpc_nr[gpc][ppc];
61 			const u32 bs = attrib * gr->ppc_tpc_nr[gpc][ppc];
62 			const u32 u = 0x418ea0 + (n * 0x04);
63 			const u32 o = PPC_UNIT(gpc, ppc, 0);
64 			const u32 p = GPC_UNIT(gpc, 0xc44 + (ppc * 4));
65 			if (!(gr->ppc_mask[gpc] & (1 << ppc)))
66 				continue;
67 			mmio_wr32(info, o + 0xc0, bs);
68 			mmio_wr32(info, p, bs);
69 			mmio_wr32(info, o + 0xf4, bo);
70 			mmio_wr32(info, o + 0xf0, bs);
71 			bo += grctx->attrib_nr_max * gr->ppc_tpc_nr[gpc][ppc];
72 			mmio_wr32(info, o + 0xe4, as);
73 			mmio_wr32(info, o + 0xf8, ao);
74 			ao += grctx->alpha_nr_max * gr->ppc_tpc_nr[gpc][ppc];
75 			mmio_wr32(info, u, bs);
76 		}
77 	}
78 
79 	mmio_wr32(info, 0x4181e4, 0x00000100);
80 	mmio_wr32(info, 0x41befc, 0x00000100);
81 }
82 
83 const struct gf100_grctx_func
84 gp102_grctx = {
85 	.main = gp100_grctx_generate_main,
86 	.unkn = gk104_grctx_generate_unkn,
87 	.bundle = gm107_grctx_generate_bundle,
88 	.bundle_size = 0x3000,
89 	.bundle_min_gpm_fifo_depth = 0x180,
90 	.bundle_token_limit = 0x900,
91 	.pagepool = gp100_grctx_generate_pagepool,
92 	.pagepool_size = 0x20000,
93 	.attrib = gp102_grctx_generate_attrib,
94 	.attrib_nr_max = 0x5d4,
95 	.attrib_nr = 0x320,
96 	.alpha_nr_max = 0xc00,
97 	.alpha_nr = 0x800,
98 };
99