53 lines
1.8 KiB
C
53 lines
1.8 KiB
C
|
/*
|
||
|
|
* Copyright 2015 Red Hat Inc.
|
||
|
|
*
|
||
|
|
* Permission is hereby granted, free of charge, to any person obtaining a
|
||
|
|
* copy of this software and associated documentation files (the "Software"),
|
||
|
|
* to deal in the Software without restriction, including without limitation
|
||
|
|
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
|
||
|
|
* and/or sell copies of the Software, and to permit persons to whom the
|
||
|
|
* Software is furnished to do so, subject to the following conditions:
|
||
|
|
*
|
||
|
|
* The above copyright notice and this permission notice shall be included in
|
||
|
|
* all copies or substantial portions of the Software.
|
||
|
|
*
|
||
|
|
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
|
||
|
|
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
|
||
|
|
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
|
||
|
|
* THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR
|
||
|
|
* OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE,
|
||
|
|
* ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
|
||
|
|
* OTHER DEALINGS IN THE SOFTWARE.
|
||
|
|
*
|
||
|
|
* Authors: Ben Skeggs <bskeggs@redhat.com>
|
||
|
|
*/
|
||
|
|
#include "priv.h"
|
||
|
|
|
||
|
|
#include <core/pci.h>
|
||
|
|
|
||
|
|
/* MSI re-arm through the PRI appears to be broken on NV46/NV50/G84/G86/G92,
|
||
|
|
* so we access it via alternate PCI config space mechanisms.
|
||
|
|
*/
|
||
|
|
void
|
||
|
|
nv46_pci_msi_rearm(struct nvkm_pci *pci)
|
||
|
|
{
|
||
|
|
struct nvkm_device *device = pci->subdev.device;
|
||
|
|
struct pci_dev *pdev = device->func->pci(device)->pdev;
|
||
|
|
pci_write_config_byte(pdev, 0x68, 0xff);
|
||
|
|
}
|
||
|
|
|
||
|
|
static const struct nvkm_pci_func
|
||
|
|
nv46_pci_func = {
|
||
|
|
.rd32 = nv40_pci_rd32,
|
||
|
|
.wr08 = nv40_pci_wr08,
|
||
|
|
.wr32 = nv40_pci_wr32,
|
||
|
|
.msi_rearm = nv46_pci_msi_rearm,
|
||
|
|
};
|
||
|
|
|
||
|
|
int
|
||
|
|
nv46_pci_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,
|
||
|
|
struct nvkm_pci **ppci)
|
||
|
|
{
|
||
|
|
return nvkm_pci_new_(&nv46_pci_func, device, type, inst, ppci);
|
||
|
|
}
|