LXR linux/drivers/gpu/drm/nouveau/nvkm/engine/disp/wimmgv100.c

   1/*
   2 * Copyright 2018 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#include "channv50.h"
  23
  24#include <core/client.h>
  25
  26#include <nvif/clc37b.h>
  27#include <nvif/unpack.h>
  28
  29static void
  30gv100_disp_wimm_intr(struct nv50_disp_chan *chan, bool en)
  31{
  32        struct nvkm_device *device = chan->disp->base.engine.subdev.device;
  33        const u32 mask = 0x00000001 << chan->head;
  34        const u32 data = en ? mask : 0;
  35        nvkm_mask(device, 0x611da8, mask, data);
  36}
  37
  38const struct nv50_disp_chan_func
  39gv100_disp_wimm = {
  40        .init = gv100_disp_dmac_init,
  41        .fini = gv100_disp_dmac_fini,
  42        .intr = gv100_disp_wimm_intr,
  43        .user = gv100_disp_chan_user,
  44};
  45
  46static int
  47gv100_disp_wimm_new_(const struct nv50_disp_chan_func *func,
  48                     const struct nv50_disp_chan_mthd *mthd,
  49                     struct nv50_disp *disp, int chid,
  50                     const struct nvkm_oclass *oclass, void *argv, u32 argc,
  51                     struct nvkm_object **pobject)
  52{
  53        union {
  54                struct nvc37b_window_imm_channel_dma_v0 v0;
  55        } *args = argv;
  56        struct nvkm_object *parent = oclass->parent;
  57        int wndw, ret = -ENOSYS;
  58        u64 push;
  59
  60        nvif_ioctl(parent, "create window imm channel dma size %d\n", argc);
  61        if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))) {
  62                nvif_ioctl(parent, "create window imm channel dma vers %d "
  63                                   "pushbuf %016llx index %d\n",
  64                           args->v0.version, args->v0.pushbuf, args->v0.index);
  65                if (!(disp->wndw.mask & BIT(args->v0.index)))
  66                        return -EINVAL;
  67                push = args->v0.pushbuf;
  68                wndw = args->v0.index;
  69        } else
  70                return ret;
  71
  72        return nv50_disp_dmac_new_(func, mthd, disp, chid + wndw,
  73                                   wndw, push, oclass, pobject);
  74}
  75
  76int
  77gv100_disp_wimm_new(const struct nvkm_oclass *oclass, void *argv, u32 argc,
  78                    struct nv50_disp *disp, struct nvkm_object **pobject)
  79{
  80        return gv100_disp_wimm_new_(&gv100_disp_wimm, NULL, disp, 33,
  81                                    oclass, argv, argc, pobject);
  82}
  83