LXR linux/drivers/gpu/drm/nouveau/dispnv50/ovly.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 "ovly.h"
  23#include "oimm.h"
  24
  25#include <nvif/class.h>
  26
  27int
  28nv50_ovly_new(struct nouveau_drm *drm, int head, struct nv50_wndw **pwndw)
  29{
  30        static const struct {
  31                s32 oclass;
  32                int version;
  33                int (*new)(struct nouveau_drm *, int, s32, struct nv50_wndw **);
  34        } ovlys[] = {
  35                { GK104_DISP_OVERLAY_CONTROL_DMA, 0, ovly917e_new },
  36                { GF110_DISP_OVERLAY_CONTROL_DMA, 0, ovly907e_new },
  37                { GT214_DISP_OVERLAY_CHANNEL_DMA, 0, ovly827e_new },
  38                { GT200_DISP_OVERLAY_CHANNEL_DMA, 0, ovly827e_new },
  39                {   G82_DISP_OVERLAY_CHANNEL_DMA, 0, ovly827e_new },
  40                {  NV50_DISP_OVERLAY_CHANNEL_DMA, 0, ovly507e_new },
  41                {}
  42        };
  43        struct nv50_disp *disp = nv50_disp(drm->dev);
  44        int cid, ret;
  45
  46        cid = nvif_mclass(&disp->disp->object, ovlys);
  47        if (cid < 0) {
  48                NV_ERROR(drm, "No supported overlay class\n");
  49                return cid;
  50        }
  51
  52        ret = ovlys[cid].new(drm, head, ovlys[cid].oclass, pwndw);
  53        if (ret)
  54                return ret;
  55
  56        return nv50_oimm_init(drm, *pwndw);
  57}
  58