xref: /openbmc/linux/arch/ia64/include/asm/patch.h (revision 384740dc)
1 #ifndef _ASM_IA64_PATCH_H
2 #define _ASM_IA64_PATCH_H
3 
4 /*
5  * Copyright (C) 2003 Hewlett-Packard Co
6  *	David Mosberger-Tang <davidm@hpl.hp.com>
7  *
8  * There are a number of reasons for patching instructions.  Rather than duplicating code
9  * all over the place, we put the common stuff here.  Reasons for patching: in-kernel
10  * module-loader, virtual-to-physical patch-list, McKinley Errata 9 workaround, and gate
11  * shared library.  Undoubtedly, some of these reasons will disappear and others will
12  * be added over time.
13  */
14 #include <linux/elf.h>
15 #include <linux/types.h>
16 
17 extern void ia64_patch (u64 insn_addr, u64 mask, u64 val);	/* patch any insn slot */
18 extern void ia64_patch_imm64 (u64 insn_addr, u64 val);		/* patch "movl" w/abs. value*/
19 extern void ia64_patch_imm60 (u64 insn_addr, u64 val);		/* patch "brl" w/ip-rel value */
20 
21 extern void ia64_patch_mckinley_e9 (unsigned long start, unsigned long end);
22 extern void ia64_patch_vtop (unsigned long start, unsigned long end);
23 extern void ia64_patch_phys_stack_reg(unsigned long val);
24 extern void ia64_patch_rse (unsigned long start, unsigned long end);
25 extern void ia64_patch_gate (void);
26 
27 #endif /* _ASM_IA64_PATCH_H */
28