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      1 /*	$NetBSD: nouveau_nvkm_engine_disp_oimmnv50.c,v 1.3 2021/12/18 23:45:35 riastradh Exp $	*/
      2 
      3 /*
      4  * Copyright 2012 Red Hat Inc.
      5  *
      6  * Permission is hereby granted, free of charge, to any person obtaining a
      7  * copy of this software and associated documentation files (the "Software"),
      8  * to deal in the Software without restriction, including without limitation
      9  * the rights to use, copy, modify, merge, publish, distribute, sublicense,
     10  * and/or sell copies of the Software, and to permit persons to whom the
     11  * Software is furnished to do so, subject to the following conditions:
     12  *
     13  * The above copyright notice and this permission notice shall be included in
     14  * all copies or substantial portions of the Software.
     15  *
     16  * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
     17  * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
     18  * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.  IN NO EVENT SHALL
     19  * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
     20  * OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
     21  * ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
     22  * OTHER DEALINGS IN THE SOFTWARE.
     23  *
     24  * Authors: Ben Skeggs
     25  */
     26 #include <sys/cdefs.h>
     27 __KERNEL_RCSID(0, "$NetBSD: nouveau_nvkm_engine_disp_oimmnv50.c,v 1.3 2021/12/18 23:45:35 riastradh Exp $");
     28 
     29 #include "channv50.h"
     30 #include "head.h"
     31 
     32 #include <core/client.h>
     33 
     34 #include <nvif/cl507b.h>
     35 #include <nvif/unpack.h>
     36 
     37 int
     38 nv50_disp_oimm_new_(const struct nv50_disp_chan_func *func,
     39 		    struct nv50_disp *disp, int ctrl, int user,
     40 		    const struct nvkm_oclass *oclass, void *argv, u32 argc,
     41 		    struct nvkm_object **pobject)
     42 {
     43 	union {
     44 		struct nv50_disp_overlay_v0 v0;
     45 	} *args = argv;
     46 	struct nvkm_object *parent = oclass->parent;
     47 	int head, ret = -ENOSYS;
     48 
     49 	nvif_ioctl(parent, "create disp overlay size %d\n", argc);
     50 	if (!(ret = nvif_unpack(ret, &argv, &argc, args->v0, 0, 0, false))) {
     51 		nvif_ioctl(parent, "create disp overlay vers %d head %d\n",
     52 			   args->v0.version, args->v0.head);
     53 		if (!nvkm_head_find(&disp->base, args->v0.head))
     54 			return -EINVAL;
     55 		head = args->v0.head;
     56 	} else
     57 		return ret;
     58 
     59 	return nv50_disp_chan_new_(func, NULL, disp, ctrl + head, user + head,
     60 				   head, oclass, pobject);
     61 }
     62 
     63 int
     64 nv50_disp_oimm_new(const struct nvkm_oclass *oclass, void *argv, u32 argc,
     65 		   struct nv50_disp *disp, struct nvkm_object **pobject)
     66 {
     67 	return nv50_disp_oimm_new_(&nv50_disp_pioc_func, disp, 5, 5,
     68 				   oclass, argv, argc, pobject);
     69 }
     70