drivers/gpu/drm/nouveau/nvkm/engine/gr/ctxgp102.c

   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 int s = 12;
  42         const int b = mmio_vram(info, size, (1 << s), false);
  43         const int max_batches = 0xffff;
  44         u32 ao = 0;
  45         u32 bo = ao + grctx->alpha_nr_max * gr->tpc_total;
  46         int gpc, ppc, n = 0;
  47
  48         mmio_refn(info, 0x418810, 0x80000000, s, b);
  49         mmio_refn(info, 0x419848, 0x10000000, s, b);
  50         mmio_refn(info, 0x419c2c, 0x10000000, s, b);
  51         mmio_refn(info, 0x419b00, 0x00000000, s, b);
  52         mmio_wr32(info, 0x419b04, 0x80000000 | size >> 7);
  53         mmio_wr32(info, 0x405830, attrib);
  54         mmio_wr32(info, 0x40585c, alpha);
  55         mmio_wr32(info, 0x4064c4, ((alpha / 4) << 16) | max_batches);
  56
  57         for (gpc = 0; gpc < gr->gpc_nr; gpc++) {
  58                 for (ppc = 0; ppc < gr->ppc_nr[gpc]; ppc++, n++) {
  59                         const u32 as =  alpha * gr->ppc_tpc_nr[gpc][ppc];
  60                         const u32 bs = attrib * gr->ppc_tpc_nr[gpc][ppc];
  61                         const u32 u = 0x418ea0 + (n * 0x04);
  62                         const u32 o = PPC_UNIT(gpc, ppc, 0);
  63                         const u32 p = GPC_UNIT(gpc, 0xc44 + (ppc * 4));
  64                         if (!(gr->ppc_mask[gpc] & (1 << ppc)))
  65                                 continue;
  66                         mmio_wr32(info, o + 0xc0, bs);
  67                         mmio_wr32(info, p, bs);
  68                         mmio_wr32(info, o + 0xf4, bo);
  69                         mmio_wr32(info, o + 0xf0, bs);
  70                         bo += grctx->attrib_nr_max * gr->ppc_tpc_nr[gpc][ppc];
  71                         mmio_wr32(info, o + 0xe4, as);
  72                         mmio_wr32(info, o + 0xf8, ao);
  73                         ao += grctx->alpha_nr_max * gr->ppc_tpc_nr[gpc][ppc];
  74                         mmio_wr32(info, u, bs);
  75                 }
  76         }
  77
  78         mmio_wr32(info, 0x4181e4, 0x00000100);
  79         mmio_wr32(info, 0x41befc, 0x00000100);
  80 }
  81
  82 const struct gf100_grctx_func
  83 gp102_grctx = {
  84         .main = gp100_grctx_generate_main,
  85         .unkn = gk104_grctx_generate_unkn,
  86         .bundle = gm107_grctx_generate_bundle,
  87         .bundle_size = 0x3000,
  88         .bundle_min_gpm_fifo_depth = 0x180,
  89         .bundle_token_limit = 0x900,
  90         .pagepool = gp100_grctx_generate_pagepool,
  91         .pagepool_size = 0x20000,
  92         .attrib = gp102_grctx_generate_attrib,
  93         .attrib_nr_max = 0x5d4,
  94         .attrib_nr = 0x320,
  95         .alpha_nr_max = 0xc00,
  96         .alpha_nr = 0x800,
  97 };