LXR linux/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
  32void
  33gp102_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
  83const struct gf100_grctx_func
  84gp102_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