xref: /netbsd-src/sys/external/bsd/drm2/dist/drm/nouveau/nvkm/subdev/pci/nouveau_nvkm_subdev_pci_gp100.c (revision 41ec02673d281bbb3d38e6c78504ce6e30c228c1)
1 /*	$NetBSD: nouveau_nvkm_subdev_pci_gp100.c,v 1.2 2021/12/18 23:45:41 riastradh Exp $	*/
2 
3 /*
4  * Copyright 2015 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 <bskeggs@redhat.com>
25  */
26 #include <sys/cdefs.h>
27 __KERNEL_RCSID(0, "$NetBSD: nouveau_nvkm_subdev_pci_gp100.c,v 1.2 2021/12/18 23:45:41 riastradh Exp $");
28 
29 #include "priv.h"
30 
31 static void
gp100_pci_msi_rearm(struct nvkm_pci * pci)32 gp100_pci_msi_rearm(struct nvkm_pci *pci)
33 {
34 	nvkm_pci_wr32(pci, 0x0704, 0x00000000);
35 }
36 
37 static const struct nvkm_pci_func
38 gp100_pci_func = {
39 	.rd32 = nv40_pci_rd32,
40 	.wr08 = nv40_pci_wr08,
41 	.wr32 = nv40_pci_wr32,
42 	.msi_rearm = gp100_pci_msi_rearm,
43 };
44 
45 int
gp100_pci_new(struct nvkm_device * device,int index,struct nvkm_pci ** ppci)46 gp100_pci_new(struct nvkm_device *device, int index, struct nvkm_pci **ppci)
47 {
48 	return nvkm_pci_new_(&gp100_pci_func, device, index, ppci);
49 }
50