/* * Copyright 2013 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 */ #include "ram.h" int nv1a_ram_new(struct nvkm_fb *fb, struct nvkm_ram **pram) { struct pci_dev *bridge; u32 mem, mib; int domain = 0; struct pci_dev *pdev = NULL; if (dev_is_pci(fb->subdev.device->dev)) pdev = to_pci_dev(fb->subdev.device->dev); if (pdev) domain = pci_domain_nr(pdev->bus); bridge = pci_get_domain_bus_and_slot(domain, 0, PCI_DEVFN(0, 1)); if (!bridge) { nvkm_error(&fb->subdev, "no bridge device\n"); return -ENODEV; } if (fb->subdev.device->chipset == 0x1a) { pci_read_config_dword(bridge, 0x7c, &mem); mib = ((mem >> 6) & 31) + 1; } else { pci_read_config_dword(bridge, 0x84, &mem); mib = ((mem >> 4) & 127) + 1; } return nvkm_ram_new_(&nv04_ram_func, fb, NVKM_RAM_TYPE_STOLEN, mib * 1024 * 1024, pram); }