| /* |
| * Copyright 2014 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 <subdev/bios.h> |
| #include <subdev/bios/npde.h> |
| #include <subdev/bios/pcir.h> |
| |
| u32 |
| nvbios_npdeTe(struct nvkm_bios *bios, u32 base) |
| { |
| struct nvbios_pcirT pcir; |
| u8 ver; u16 hdr; |
| u32 data = nvbios_pcirTp(bios, base, &ver, &hdr, &pcir); |
| if (data = (data + hdr + 0x0f) & ~0x0f, data) { |
| switch (nvbios_rd32(bios, data + 0x00)) { |
| case 0x4544504e: /* NPDE */ |
| break; |
| default: |
| nvkm_debug(&bios->subdev, |
| "%08x: NPDE signature (%08x) unknown\n", |
| data, nvbios_rd32(bios, data + 0x00)); |
| data = 0; |
| break; |
| } |
| } |
| return data; |
| } |
| |
| u32 |
| nvbios_npdeTp(struct nvkm_bios *bios, u32 base, struct nvbios_npdeT *info) |
| { |
| u32 data = nvbios_npdeTe(bios, base); |
| memset(info, 0x00, sizeof(*info)); |
| if (data) { |
| info->image_size = nvbios_rd16(bios, data + 0x08) * 512; |
| info->last = nvbios_rd08(bios, data + 0x0a) & 0x80; |
| } |
| return data; |
| } |
