#if defined(__SUNPRO_C) && defined(__sparcv9) # define ABI64 /* They've said -xarch=v9 at command line */ #elif defined(__GNUC__) && defined(__arch64__) # define ABI64 /* They've said -m64 at command line */ #endif #ifdef ABI64 .register %g2,#scratch .register %g3,#scratch # define FRAME -192 # define BIAS 2047 #else # define FRAME -96 # define BIAS 0 #endif .global _sparcv9_vis1_probe .align 8 _sparcv9_vis1_probe: add %sp,BIAS+2,%o1 .word 0xc19a5a40 !ldda [%o1]ASI_FP16_P,%f0 retl .word 0x81b00d80 !fxor %f0,%f0,%f0 .type _sparcv9_vis1_probe,#function .size _sparcv9_vis1_probe,.-_sparcv9_vis1_probe ! Probe and instrument VIS1 instruction. Output is number of cycles it ! takes to execute rdtick and pair of VIS1 instructions. US-Tx VIS unit ! is slow (documented to be 6 cycles on T2) and the core is in-order ! single-issue, it should be possible to distinguish Tx reliably... ! Observed return values are: ! ! UltraSPARC IIe 7 ! UltraSPARC III 7 ! UltraSPARC T1 24 ! ! Numbers for T2 and SPARC64 V-VII are more than welcomed. ! ! It would be possible to detect specifically US-T1 by instrumenting ! fmul8ulx16, which is emulated on T1 and as such accounts for quite ! a lot of %tick-s, couple of thousand on Linux... .global _sparcv9_vis1_instrument .align 8 _sparcv9_vis1_instrument: .word 0x91410000 !rd %tick,%o0 .word 0x81b00d80 !fxor %f0,%f0,%f0 .word 0x85b08d82 !fxor %f2,%f2,%f2 .word 0x93410000 !rd %tick,%o1 .word 0x81b00d80 !fxor %f0,%f0,%f0 .word 0x85b08d82 !fxor %f2,%f2,%f2 .word 0x95410000 !rd %tick,%o2 .word 0x81b00d80 !fxor %f0,%f0,%f0 .word 0x85b08d82 !fxor %f2,%f2,%f2 .word 0x97410000 !rd %tick,%o3 .word 0x81b00d80 !fxor %f0,%f0,%f0 .word 0x85b08d82 !fxor %f2,%f2,%f2 .word 0x99410000 !rd %tick,%o4 ! calculate intervals sub %o1,%o0,%o0 sub %o2,%o1,%o1 sub %o3,%o2,%o2 sub %o4,%o3,%o3 ! find minimum value cmp %o0,%o1 .word 0x38680002 !bgu,a %xcc,.+8 mov %o1,%o0 cmp %o0,%o2 .word 0x38680002 !bgu,a %xcc,.+8 mov %o2,%o0 cmp %o0,%o3 .word 0x38680002 !bgu,a %xcc,.+8 mov %o3,%o0 retl nop .type _sparcv9_vis1_instrument,#function .size _sparcv9_vis1_instrument,.-_sparcv9_vis1_instrument .global _sparcv9_vis2_probe .align 8 _sparcv9_vis2_probe: retl .word 0x81b00980 !bshuffle %f0,%f0,%f0 .type _sparcv9_vis2_probe,#function .size _sparcv9_vis2_probe,.-_sparcv9_vis2_probe .global _sparcv9_fmadd_probe .align 8 _sparcv9_fmadd_probe: .word 0x81b00d80 !fxor %f0,%f0,%f0 .word 0x85b08d82 !fxor %f2,%f2,%f2 retl .word 0x81b80440 !fmaddd %f0,%f0,%f2,%f0 .type _sparcv9_fmadd_probe,#function .size _sparcv9_fmadd_probe,.-_sparcv9_fmadd_probe .section ".init",#alloc,#execinstr call OPENSSL_cpuid_setup nop