subdev/pci/nv40.c

0001 /*
0002  * Copyright 2015 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  * Authors: Ben Skeggs <bskeggs@redhat.com>
0023  */
0024 #include "priv.h"
0025
0026 u32
0027 nv40_pci_rd32(struct nvkm_pci *pci, u16 addr)
0028 {
0029     struct nvkm_device *device = pci->subdev.device;
0030     return nvkm_rd32(device, 0x088000 + addr);
0031 }
0032
0033 void
0034 nv40_pci_wr08(struct nvkm_pci *pci, u16 addr, u8 data)
0035 {
0036     struct nvkm_device *device = pci->subdev.device;
0037     nvkm_wr08(device, 0x088000 + addr, data);
0038 }
0039
0040 void
0041 nv40_pci_wr32(struct nvkm_pci *pci, u16 addr, u32 data)
0042 {
0043     struct nvkm_device *device = pci->subdev.device;
0044     nvkm_wr32(device, 0x088000 + addr, data);
0045 }
0046
0047 void
0048 nv40_pci_msi_rearm(struct nvkm_pci *pci)
0049 {
0050     nvkm_pci_wr08(pci, 0x0068, 0xff);
0051 }
0052
0053 static const struct nvkm_pci_func
0054 nv40_pci_func = {
0055     .rd32 = nv40_pci_rd32,
0056     .wr08 = nv40_pci_wr08,
0057     .wr32 = nv40_pci_wr32,
0058     .msi_rearm = nv40_pci_msi_rearm,
0059 };
0060
0061 int
0062 nv40_pci_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
0063          struct nvkm_pci **ppci)
0064 {
0065     return nvkm_pci_new_(&nv40_pci_func, device, type, inst, ppci);
0066 }