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      1 /*	$NetBSD: nouveau_nvkm_engine_fifo_g84.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_fifo_g84.c,v 1.3 2021/12/18 23:45:35 riastradh Exp $");
     28 
     29 #include "nv50.h"
     30 #include "channv50.h"
     31 
     32 static void
     33 g84_fifo_uevent_fini(struct nvkm_fifo *fifo)
     34 {
     35 	struct nvkm_device *device = fifo->engine.subdev.device;
     36 	nvkm_mask(device, 0x002140, 0x40000000, 0x00000000);
     37 }
     38 
     39 static void
     40 g84_fifo_uevent_init(struct nvkm_fifo *fifo)
     41 {
     42 	struct nvkm_device *device = fifo->engine.subdev.device;
     43 	nvkm_mask(device, 0x002140, 0x40000000, 0x40000000);
     44 }
     45 
     46 static const struct nvkm_fifo_func
     47 g84_fifo = {
     48 	.dtor = nv50_fifo_dtor,
     49 	.oneinit = nv50_fifo_oneinit,
     50 	.init = nv50_fifo_init,
     51 	.intr = nv04_fifo_intr,
     52 	.pause = nv04_fifo_pause,
     53 	.start = nv04_fifo_start,
     54 	.uevent_init = g84_fifo_uevent_init,
     55 	.uevent_fini = g84_fifo_uevent_fini,
     56 	.chan = {
     57 		&g84_fifo_dma_oclass,
     58 		&g84_fifo_gpfifo_oclass,
     59 		NULL
     60 	},
     61 };
     62 
     63 int
     64 g84_fifo_new(struct nvkm_device *device, int index, struct nvkm_fifo **pfifo)
     65 {
     66 	return nv50_fifo_new_(&g84_fifo, device, index, pfifo);
     67 }
     68