| /* |
| * This file is part of the coreboot project. |
| * |
| * Copyright (C) 2012 The ChromiumOS Authors. All rights reserved. |
| * |
| * This program is free software; you can redistribute it and/or modify |
| * it under the terms of the GNU General Public License as published by |
| * the Free Software Foundation; version 2 of the License. |
| * |
| * This program is distributed in the hope that it will be useful, |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| * GNU General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA |
| */ |
| |
| #ifndef __INCLUDE_ARCH_CBFS__ |
| #define __INCLUDE_ARCH_CBFS__ |
| |
| static void *walkcbfs(char *target) |
| { |
| void *entry; |
| asm volatile ( |
| "mov $1f, %%esp\n\t" |
| "jmp walkcbfs_asm\n\t" |
| "1:\n\t" : "=a" (entry) : "S" (target) : "ebx", "ecx", "edi", "esp"); |
| return entry; |
| } |
| |
| /* just enough to support findstage. copied because the original version doesn't easily pass through romcc */ |
| struct cbfs_stage_restricted { |
| unsigned long compression; |
| unsigned long entry; // this is really 64bit, but properly endianized |
| }; |
| |
| static inline unsigned long findstage(char* target) |
| { |
| return ((struct cbfs_stage_restricted *)walkcbfs(target))->entry; |
| } |
| |
| static inline void call(unsigned long addr, unsigned long bist) |
| { |
| asm volatile ("jmp *%0\n\t" : : "r" (addr), "a" (bist)); |
| } |
| #endif |
