xref: /kvm-unit-tests/lib/powerpc/asm/ppc_asm.h (revision 9c5e19134a2eb35a2f2d7684a66875eca8f3a373)
1 #ifndef _ASMPOWERPC_PPC_ASM_H
2 #define _ASMPOWERPC_PPC_ASM_H
3 
4 #include <asm/asm-offsets.h>
5 #include <asm/reg.h>
6 
7 #define SAVE_GPR(n, base)	std	n,GPR0+8*(n)(base)
8 #define REST_GPR(n, base)	ld	n,GPR0+8*(n)(base)
9 
10 #define LOAD_REG_IMMEDIATE(reg,expr)		\
11 	lis	reg,(expr)@highest;		\
12 	ori	reg,reg,(expr)@higher;		\
13 	rldicr	reg,reg,32,31;			\
14 	oris	reg,reg,(expr)@h;		\
15 	ori	reg,reg,(expr)@l;
16 
17 #define LOAD_REG_ADDR(reg,name)			\
18 	ld	reg,name@got(r2)
19 
20 #if __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
21 
22 #define FIXUP_ENDIAN
23 
24 #elif __BYTE_ORDER__ == __ORDER_LITTLE_ENDIAN__
25 
26 #define FIXUP_ENDIAN				\
27 	.long 0x05000048; /* bl . + 4        */ \
28 	.long 0xa602487d; /* mflr r10        */	\
29 	.long 0x20004a39; /* addi r10,r10,32 */	\
30 	.long 0xa600607d; /* mfmsr r11       */	\
31 	.long 0x01006b69; /* xori r11,r11,1  */	\
32 	.long 0xa6035a7d; /* mtsrr0 r10	     */	\
33 	.long 0xa6037b7d; /* mtsrr1 r11      */	\
34 	.long 0x2400004c; /* rfid            */ \
35 	.long 0x00000048; /* b .             */ \
36 
37 #endif /* __BYTE_ORDER__ */
38 
39 #endif /* _ASMPOWERPC_PPC_ASM_H */
40