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1/*2 * Copyright 2015 Red Hat Inc.3 *4 * Permission is hereby granted, free of charge, to any person obtaining a5 * copy of this software and associated documentation files (the "Software"),6 * to deal in the Software without restriction, including without limitation7 * the rights to use, copy, modify, merge, publish, distribute, sublicense,8 * and/or sell copies of the Software, and to permit persons to whom the9 * Software is furnished to do so, subject to the following conditions:10 *11 * The above copyright notice and this permission notice shall be included in12 * all copies or substantial portions of the Software.13 *14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR18 * 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 OR20 * OTHER DEALINGS IN THE SOFTWARE.21 *22 * Authors: Ben Skeggs <bskeggs@redhat.com>23 */24#include "priv.h"25 26#include <core/pci.h>27 28/* MSI re-arm through the PRI appears to be broken on NV46/NV50/G84/G86/G92,29 * so we access it via alternate PCI config space mechanisms.30 */31void32nv46_pci_msi_rearm(struct nvkm_pci *pci)33{34 struct nvkm_device *device = pci->subdev.device;35 struct pci_dev *pdev = device->func->pci(device)->pdev;36 pci_write_config_byte(pdev, 0x68, 0xff);37}38 39static const struct nvkm_pci_func40nv46_pci_func = {41 .rd32 = nv40_pci_rd32,42 .wr08 = nv40_pci_wr08,43 .wr32 = nv40_pci_wr32,44 .msi_rearm = nv46_pci_msi_rearm,45};46 47int48nv46_pci_new(struct nvkm_device *device, enum nvkm_subdev_type type, int inst,49 struct nvkm_pci **ppci)50{51 return nvkm_pci_new_(&nv46_pci_func, device, type, inst, ppci);52}53