nouveau/dispnv50/ovly.c

0001 /*
0002  * Copyright 2018 Red Hat Inc.
0003  *
0004  * Permission is hereby granted, free of charge, to any person obtaining a
0005  * copy of this software and associated documentation files (the "Software"),
0006  * to deal in the Software without restriction, including without limitation
0007  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
0008  * and/or sell copies of the Software, and to permit persons to whom the
0009  * Software is furnished to do so, subject to the following conditions:
0010  *
0011  * The above copyright notice and this permission notice shall be included in
0012  * all copies or substantial portions of the Software.
0013  *
0014  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
0015  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
0016  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
0017  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
0018  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
0019  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
0020  * OTHER DEALINGS IN THE SOFTWARE.
0021  */
0022 #include "ovly.h"
0023 #include "oimm.h"
0024
0025 #include <nvif/class.h>
0026
0027 int
0028 nv50_ovly_new(struct nouveau_drm *drm, int head, struct nv50_wndw **pwndw)
0029 {
0030     static const struct {
0031         s32 oclass;
0032         int version;
0033         int (*new)(struct nouveau_drm *, int, s32, struct nv50_wndw **);
0034     } ovlys[] = {
0035         { GK104_DISP_OVERLAY_CONTROL_DMA, 0, ovly917e_new },
0036         { GF110_DISP_OVERLAY_CONTROL_DMA, 0, ovly907e_new },
0037         { GT214_DISP_OVERLAY_CHANNEL_DMA, 0, ovly827e_new },
0038         { GT200_DISP_OVERLAY_CHANNEL_DMA, 0, ovly827e_new },
0039         {   G82_DISP_OVERLAY_CHANNEL_DMA, 0, ovly827e_new },
0040         {  NV50_DISP_OVERLAY_CHANNEL_DMA, 0, ovly507e_new },
0041         {}
0042     };
0043     struct nv50_disp *disp = nv50_disp(drm->dev);
0044     int cid, ret;
0045
0046     cid = nvif_mclass(&disp->disp->object, ovlys);
0047     if (cid < 0) {
0048         NV_ERROR(drm, "No supported overlay class\n");
0049         return cid;
0050     }
0051
0052     ret = ovlys[cid].new(drm, head, ovlys[cid].oclass, pwndw);
0053     if (ret)
0054         return ret;
0055
0056     return nv50_oimm_init(drm, *pwndw);
0057 }