1 /*
2  * This file is subject to the terms and conditions of the GNU General Public
3  * License.  See the file "COPYING" in the main directory of this archive
4  * for more details.
5  */
6 #ifndef __ASM_UPROBES_H
7 #define __ASM_UPROBES_H
8 
9 #include <linux/notifier.h>
10 #include <linux/types.h>
11 
12 #include <asm/break.h>
13 #include <asm/inst.h>
14 
15 /*
16  * We want this to be defined as union loongarch_instruction but that makes the
17  * generic code blow up.
18  */
19 typedef u32 uprobe_opcode_t;
20 
21 #define MAX_UINSN_BYTES			8
22 #define UPROBE_XOL_SLOT_BYTES		128	/* Max. cache line size */
23 
24 #define UPROBE_BRK_UPROBE		0x002a000c	/* break 12 */
25 #define UPROBE_BRK_UPROBE_XOL		0x002a000d	/* break 13 */
26 
27 #define UPROBE_SWBP_INSN		UPROBE_BRK_UPROBE
28 #define UPROBE_SWBP_INSN_SIZE		4
29 
30 struct arch_uprobe {
31 	unsigned long	resume_era;
32 	u32	insn[2];
33 	u32	ixol[2];
34 };
35 
36 struct arch_uprobe_task {
37 	unsigned long saved_trap_nr;
38 };
39 
40 #endif /* __ASM_UPROBES_H */
41