1 #ifndef __ASM_METAG_CORE_REG_H_
2 #define __ASM_METAG_CORE_REG_H_
4 #include <asm/metag_regs.h>
6 extern void core_reg_write(int unit, int reg, int thread, unsigned int val);
7 extern unsigned int core_reg_read(int unit, int reg, int thread);
10 * These macros allow direct access from C to any register known to the
11 * assembler. Example candidates are TXTACTCYC, TXIDLECYC, and TXPRIVEXT.
14 #define __core_reg_get(reg) ({ \
15 unsigned int __grvalue; \
16 asm volatile("MOV %0," #reg \
17 : "=r" (__grvalue)); \
21 #define __core_reg_set(reg, value) do { \
22 unsigned int __srvalue = (value); \
23 asm volatile("MOV " #reg ",%0" \
28 #define __core_reg_swap(reg, value) do { \
29 unsigned int __srvalue = (value); \
30 asm volatile("SWAP " #reg ",%0" \
31 : "+r" (__srvalue)); \
32 (value) = __srvalue; \