/* * 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>
staticint
g84_pcie_version_supported(struct nvkm_pci *pci)
{ /* g84 and g86 report wrong information about what they support */ return 1;
}
void
g84_pci_init(struct nvkm_pci *pci)
{ /* The following only concerns PCIe cards. */ if (!pci_is_pcie(pci->pdev)) return;
/* Tag field is 8-bit long, regardless of EXT_TAG. * However, if EXT_TAG is disabled, only the lower 5 bits of the tag * field should be used, limiting the number of request to 32. * * Apparently, 0x041c stores some limit on the number of requests * possible, so if EXT_TAG is disabled, limit that requests number to * 32 * * Fixes fdo#86537
*/ if (nvkm_pci_rd32(pci, 0x007c) & 0x00000020)
nvkm_pci_mask(pci, 0x0080, 0x00000100, 0x00000100); else
nvkm_pci_mask(pci, 0x041c, 0x00000060, 0x00000000);
}
Die Informationen auf dieser Webseite wurden
nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit,
noch Qualität der bereit gestellten Informationen zugesichert.
Bemerkung:
Die farbliche Syntaxdarstellung und die Messung sind noch experimentell.