1 /* 2 * Copyright 2015 Red Hat Inc. 3 * 4 * Permission is hereby granted, free of charge, to any person obtaining a 5 * copy of this software and associated documentation files (the "Software"), 6 * to deal in the Software without restriction, including without limitation 7 * the rights to use, copy, modify, merge, publish, distribute, sublicense, 8 * and/or sell copies of the Software, and to permit persons to whom the 9 * Software is furnished to do so, subject to the following conditions: 10 * 11 * The above copyright notice and this permission notice shall be included in 12 * all copies or substantial portions of the Software. 13 * 14 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR 15 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, 16 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL 17 * THE COPYRIGHT HOLDER(S) OR AUTHOR(S) BE LIABLE FOR ANY CLAIM, DAMAGES OR 18 * 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 OR 20 * OTHER DEALINGS IN THE SOFTWARE. 21 * 22 * Authors: Ben Skeggs <bskeggs@redhat.com> 23 */ 24 #include "priv.h" 25 26 int 27 g94_pcie_version_supported(struct nvkm_pci *pci) 28 { 29 if ((nvkm_pci_rd32(pci, 0x460) & 0x200) == 0x200) 30 return 2; 31 return 1; 32 } 33 34 static const struct nvkm_pci_func 35 g94_pci_func = { 36 .init = g84_pci_init, 37 .rd32 = nv40_pci_rd32, 38 .wr08 = nv40_pci_wr08, 39 .wr32 = nv40_pci_wr32, 40 .msi_rearm = nv40_pci_msi_rearm, 41 42 .pcie.init = g84_pcie_init, 43 .pcie.set_link = g84_pcie_set_link, 44 45 .pcie.max_speed = g84_pcie_max_speed, 46 .pcie.cur_speed = g84_pcie_cur_speed, 47 48 .pcie.set_version = g84_pcie_set_version, 49 .pcie.version = g84_pcie_version, 50 .pcie.version_supported = g94_pcie_version_supported, 51 }; 52 53 int 54 g94_pci_new(struct nvkm_device *device, int index, struct nvkm_pci **ppci) 55 { 56 return nvkm_pci_new_(&g94_pci_func, device, index, ppci); 57 } 58