/* * Copyright 2012 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. * */ #include "priv.h" #include <subdev/pci.h> static u32 nvbios_prom_read(void *data, u32 offset, u32 length, struct nvkm_bios *bios) { struct nvkm_device *device = data; u32 i; if (offset + length <= 0x00100000) { for (i = offset; i < offset + length; i += 4) *(u32 *)&bios->data[i] = nvkm_rd32(device, 0x300000 + i); return length; } return 0; } static void nvbios_prom_fini(void *data) { struct nvkm_device *device = data; nvkm_pci_rom_shadow(device->pci, true); } static void * nvbios_prom_init(struct nvkm_bios *bios, const char *name) { struct nvkm_device *device = bios->subdev.device; if (device->card_type == NV_40 && device->chipset >= 0x4c) return ERR_PTR(-ENODEV); nvkm_pci_rom_shadow(device->pci, false); return device; } const struct nvbios_source nvbios_prom = { .name = "PROM", .init = nvbios_prom_init, .fini = nvbios_prom_fini, .read = nvbios_prom_read, .rw = false, };