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| author | Michal Simek <monstr@monstr.eu> | 2007-05-07 23:58:31 +0200 |
|---|---|---|
| committer | Michal Simek <monstr@monstr.eu> | 2007-05-07 23:58:31 +0200 |
| commit | fb05f6da35ea1c15c553abe6f23f656bf18dc5db (patch) | |
| tree | 97d017c2c93576570338cd2a5d2034981f131bc8 /include/asm-microblaze | |
| parent | a7bac7e9b57ba948051beb19ec5be3a75ce75383 (diff) | |
| download | u-boot-midas-fb05f6da35ea1c15c553abe6f23f656bf18dc5db.tar.gz u-boot-midas-fb05f6da35ea1c15c553abe6f23f656bf18dc5db.tar.bz2 u-boot-midas-fb05f6da35ea1c15c553abe6f23f656bf18dc5db.zip | |
new: USE_MSR_INTR support
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 fcda31f4a8..c59854a860 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 |