xref: /openbmc/linux/arch/ia64/include/asm/patch.h (revision ae213c44)
1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _ASM_IA64_PATCH_H
3 #define _ASM_IA64_PATCH_H
4 
5 /*
6  * Copyright (C) 2003 Hewlett-Packard Co
7  *	David Mosberger-Tang <davidm@hpl.hp.com>
8  *
9  * There are a number of reasons for patching instructions.  Rather than duplicating code
10  * all over the place, we put the common stuff here.  Reasons for patching: in-kernel
11  * module-loader, virtual-to-physical patch-list, McKinley Errata 9 workaround, and gate
12  * shared library.  Undoubtedly, some of these reasons will disappear and others will
13  * be added over time.
14  */
15 #include <linux/elf.h>
16 #include <linux/types.h>
17 
18 extern void ia64_patch (u64 insn_addr, u64 mask, u64 val);	/* patch any insn slot */
19 extern void ia64_patch_imm64 (u64 insn_addr, u64 val);		/* patch "movl" w/abs. value*/
20 extern void ia64_patch_imm60 (u64 insn_addr, u64 val);		/* patch "brl" w/ip-rel value */
21 
22 extern void ia64_patch_mckinley_e9 (unsigned long start, unsigned long end);
23 extern void ia64_patch_vtop (unsigned long start, unsigned long end);
24 extern void ia64_patch_phys_stack_reg(unsigned long val);
25 extern void ia64_patch_rse (unsigned long start, unsigned long end);
26 extern void ia64_patch_gate (void);
27 
28 #endif /* _ASM_IA64_PATCH_H */
29