1/*
2 * Copyright 2015 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 * Authors: Ben Skeggs <bskeggs@redhat.com>
23 */
24#include "nv50.h"
25
26#include <subdev/timer.h>
27
28void
29g84_bar_flush(struct nvkm_bar *bar)
30{
31	struct nvkm_device *device = bar->subdev.device;
32	unsigned long flags;
33	spin_lock_irqsave(&bar->lock, flags);
34	nvkm_wr32(device, 0x070000, 0x00000001);
35	nvkm_msec(device, 2000,
36		if (!(nvkm_rd32(device, 0x070000) & 0x00000002))
37			break;
38	);
39	spin_unlock_irqrestore(&bar->lock, flags);
40}
41
42static const struct nvkm_bar_func
43g84_bar_func = {
44	.dtor = nv50_bar_dtor,
45	.oneinit = nv50_bar_oneinit,
46	.init = nv50_bar_init,
47	.kmap = nv50_bar_kmap,
48	.umap = nv50_bar_umap,
49	.flush = g84_bar_flush,
50};
51
52int
53g84_bar_new(struct nvkm_device *device, int index, struct nvkm_bar **pbar)
54{
55	return nv50_bar_new_(&g84_bar_func, device, index, 0x200, pbar);
56}
57