diff options
Diffstat (limited to 'include/asm-microblaze')
| -rwxr-xr-x[-rw-r--r--] | include/asm-microblaze/asm.h | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/include/asm-microblaze/asm.h b/include/asm-microblaze/asm.h index fcda31f..c59854a 100644..100755 --- a/include/asm-microblaze/asm.h +++ b/include/asm-microblaze/asm.h @@ -39,5 +39,42 @@ #define MTS(val) \ __asm__ __volatile__ ("mts rmsr, %0"::"r" (val)); +/* get return address from interrupt */ #define R14(val) \ __asm__ __volatile__ ("addi %0, r14, 0":"=r" (val)); + +/* use machine status registe USE_MSR_REG */ +#ifdef XILINX_USE_MSR_INSTR +#define MSRSET(val) \ + __asm__ __volatile__ ("msrset r0," #val ); + +#define MSRCLR(val) \ + __asm__ __volatile__ ("msrclr r0," #val ); + +#else +#define MSRSET(val) \ +{ \ + register unsigned tmp; \ + __asm__ __volatile__ (" \ + mfs %0, rmsr; \ + ori %0, %0, "#val"; \ + mts rmsr, %0; \ + nop;" \ + : "=r" (tmp) \ + : "d" (val) \ + : "memory"); \ +} + +#define MSRCLR(val) \ +{ \ + register unsigned tmp; \ + __asm__ __volatile__ (" \ + mfs %0, rmsr; \ + andi %0, %0, ~"#val"; \ + mts rmsr, %0; \ + nop;" \ + : "=r" (tmp) \ + : "d" (val) \ + : "memory"); \ +} +#endif |