diff options
Diffstat (limited to 'include/asm-alpha/fpu.h')
| -rw-r--r-- | include/asm-alpha/fpu.h | 12 |
1 files changed, 12 insertions, 0 deletions
diff --git a/include/asm-alpha/fpu.h b/include/asm-alpha/fpu.h index 333e5caeb..5e56e7db2 100644 --- a/include/asm-alpha/fpu.h +++ b/include/asm-alpha/fpu.h @@ -81,6 +81,18 @@ ieee_swcr_to_fpcr(unsigned long sw) return fp; } +static inline unsigned long +ieee_fpcr_to_swcr(unsigned long fp) +{ + unsigned long sw; + sw = (fp >> 35) & IEEE_STATUS_MASK; + sw |= (~fp >> 48) & (IEEE_TRAP_ENABLE_INV + | IEEE_TRAP_ENABLE_DZE + | IEEE_TRAP_ENABLE_OVF); + sw |= (~fp >> 57) & (IEEE_TRAP_ENABLE_UNF | IEEE_TRAP_ENABLE_INE); + return sw; +} + #ifdef __KERNEL__ /* The following two functions don't need trapb/excb instructions |