diff options
Diffstat (limited to 'openssl/crypto/ia64cpuid.S')
| -rw-r--r-- | openssl/crypto/ia64cpuid.S | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/openssl/crypto/ia64cpuid.S b/openssl/crypto/ia64cpuid.S new file mode 100644 index 00000000..d705fff7 --- /dev/null +++ b/openssl/crypto/ia64cpuid.S @@ -0,0 +1,167 @@ +// Works on all IA-64 platforms: Linux, HP-UX, Win64i... +// On Win64i compile with ias.exe. +.text + +.global OPENSSL_cpuid_setup# +.proc OPENSSL_cpuid_setup# +OPENSSL_cpuid_setup: +{ .mib; br.ret.sptk.many b0 };; +.endp OPENSSL_cpuid_setup# + +.global OPENSSL_rdtsc# +.proc OPENSSL_rdtsc# +OPENSSL_rdtsc: +{ .mib; mov r8=ar.itc + br.ret.sptk.many b0 };; +.endp OPENSSL_rdtsc# + +.global OPENSSL_atomic_add# +.proc OPENSSL_atomic_add# +.align 32 +OPENSSL_atomic_add: +{ .mii; ld4 r2=[r32] + nop.i 0 + nop.i 0 };; +.Lspin: +{ .mii; mov ar.ccv=r2 + add r8=r2,r33 + mov r3=r2 };; +{ .mmi; mf + cmpxchg4.acq r2=[r32],r8,ar.ccv + nop.i 0 };; +{ .mib; cmp.ne p6,p0=r2,r3 + nop.i 0 +(p6) br.dpnt .Lspin };; +{ .mib; nop.m 0 + sxt4 r8=r8 + br.ret.sptk.many b0 };; +.endp OPENSSL_atomic_add# + +// Returns a structure comprising pointer to the top of stack of +// the caller and pointer beyond backing storage for the current +// register frame. The latter is required, because it might be +// insufficient to wipe backing storage for the current frame +// (as this procedure does), one might have to go further, toward +// higher addresses to reach for whole "retroactively" saved +// context... +.global OPENSSL_wipe_cpu# +.proc OPENSSL_wipe_cpu# +.align 32 +OPENSSL_wipe_cpu: + .prologue + .fframe 0 + .save ar.pfs,r2 + .save ar.lc,r3 +{ .mib; alloc r2=ar.pfs,0,96,0,96 + mov r3=ar.lc + brp.loop.imp .L_wipe_top,.L_wipe_end-16 + };; +{ .mii; mov r9=ar.bsp + mov r8=pr + mov ar.lc=96 };; + .body +{ .mii; add r9=96*8-8,r9 + mov ar.ec=1 };; + +// One can sweep double as fast, but then we can't quarantee +// that backing storage is wiped... +.L_wipe_top: +{ .mfi; st8 [r9]=r0,-8 + mov f127=f0 + mov r127=r0 } +{ .mfb; nop.m 0 + nop.f 0 + br.ctop.sptk .L_wipe_top };; +.L_wipe_end: + +{ .mfi; mov r11=r0 + mov f6=f0 + mov r14=r0 } +{ .mfi; mov r15=r0 + mov f7=f0 + mov r16=r0 } +{ .mfi; mov r17=r0 + mov f8=f0 + mov r18=r0 } +{ .mfi; mov r19=r0 + mov f9=f0 + mov r20=r0 } +{ .mfi; mov r21=r0 + mov f10=f0 + mov r22=r0 } +{ .mfi; mov r23=r0 + mov f11=f0 + mov r24=r0 } +{ .mfi; mov r25=r0 + mov f12=f0 + mov r26=r0 } +{ .mfi; mov r27=r0 + mov f13=f0 + mov r28=r0 } +{ .mfi; mov r29=r0 + mov f14=f0 + mov r30=r0 } +{ .mfi; mov r31=r0 + mov f15=f0 + nop.i 0 } +{ .mfi; mov f16=f0 } +{ .mfi; mov f17=f0 } +{ .mfi; mov f18=f0 } +{ .mfi; mov f19=f0 } +{ .mfi; mov f20=f0 } +{ .mfi; mov f21=f0 } +{ .mfi; mov f22=f0 } +{ .mfi; mov f23=f0 } +{ .mfi; mov f24=f0 } +{ .mfi; mov f25=f0 } +{ .mfi; mov f26=f0 } +{ .mfi; mov f27=f0 } +{ .mfi; mov f28=f0 } +{ .mfi; mov f29=f0 } +{ .mfi; mov f30=f0 } +{ .mfi; add r9=96*8+8,r9 + mov f31=f0 + mov pr=r8,0x1ffff } +{ .mib; mov r8=sp + mov ar.lc=r3 + br.ret.sptk b0 };; +.endp OPENSSL_wipe_cpu# + +.global OPENSSL_cleanse# +.proc OPENSSL_cleanse# +OPENSSL_cleanse: +{ .mib; cmp.eq p6,p0=0,r33 // len==0 +#if defined(_HPUX_SOURCE) && !defined(_LP64) + addp4 r32=0,r32 +#endif +(p6) br.ret.spnt b0 };; +{ .mib; and r2=7,r32 + cmp.leu p6,p0=15,r33 // len>=15 +(p6) br.cond.dptk .Lot };; + +.Little: +{ .mib; st1 [r32]=r0,1 + cmp.ltu p6,p7=1,r33 } // len>1 +{ .mbb; add r33=-1,r33 // len-- +(p6) br.cond.dptk .Little +(p7) br.ret.sptk.many b0 };; + +.Lot: +{ .mib; cmp.eq p6,p0=0,r2 +(p6) br.cond.dptk .Laligned };; +{ .mmi; st1 [r32]=r0,1;; + and r2=7,r32 } +{ .mib; add r33=-1,r33 + br .Lot };; + +.Laligned: +{ .mmi; st8 [r32]=r0,8 + and r2=-8,r33 // len&~7 + add r33=-8,r33 };; // len-=8 +{ .mib; cmp.ltu p6,p0=8,r2 // ((len+8)&~7)>8 +(p6) br.cond.dptk .Laligned };; + +{ .mbb; cmp.eq p6,p7=r0,r33 +(p7) br.cond.dpnt .Little +(p6) br.ret.sptk.many b0 };; +.endp OPENSSL_cleanse# |