diff options
author | jsing <> | 2024-10-19 11:55:32 +0000 |
---|---|---|
committer | jsing <> | 2024-10-19 11:55:32 +0000 |
commit | d2377970fef7d1c8e41cbb1d93b5e43185f032fc (patch) | |
tree | e262e353cde0d9c0bc08c5d4c53fe7fcd20971b3 /src/lib/libcrypto/sparccpuid.S | |
parent | 72bb07c05c2f77944ec97d3b037b16ca08be47ae (diff) | |
download | openbsd-d2377970fef7d1c8e41cbb1d93b5e43185f032fc.tar.gz openbsd-d2377970fef7d1c8e41cbb1d93b5e43185f032fc.tar.bz2 openbsd-d2377970fef7d1c8e41cbb1d93b5e43185f032fc.zip |
Remove unused sparc CPU capability detection code.
This has been unused for a long time - it can be found in the attic if
someone wants to clean it up and enable it in the future.
ok tb@
Diffstat (limited to 'src/lib/libcrypto/sparccpuid.S')
-rw-r--r-- | src/lib/libcrypto/sparccpuid.S | 101 |
1 files changed, 0 insertions, 101 deletions
diff --git a/src/lib/libcrypto/sparccpuid.S b/src/lib/libcrypto/sparccpuid.S deleted file mode 100644 index 5d314d5d88..0000000000 --- a/src/lib/libcrypto/sparccpuid.S +++ /dev/null | |||
@@ -1,101 +0,0 @@ | |||
1 | #if defined(__SUNPRO_C) && defined(__sparcv9) | ||
2 | # define ABI64 /* They've said -xarch=v9 at command line */ | ||
3 | #elif defined(__GNUC__) && defined(__arch64__) | ||
4 | # define ABI64 /* They've said -m64 at command line */ | ||
5 | #endif | ||
6 | |||
7 | #ifdef ABI64 | ||
8 | .register %g2,#scratch | ||
9 | .register %g3,#scratch | ||
10 | # define FRAME -192 | ||
11 | # define BIAS 2047 | ||
12 | #else | ||
13 | # define FRAME -96 | ||
14 | # define BIAS 0 | ||
15 | #endif | ||
16 | |||
17 | .global _sparcv9_vis1_probe | ||
18 | .align 8 | ||
19 | _sparcv9_vis1_probe: | ||
20 | add %sp,BIAS+2,%o1 | ||
21 | .word 0xc19a5a40 !ldda [%o1]ASI_FP16_P,%f0 | ||
22 | retl | ||
23 | .word 0x81b00d80 !fxor %f0,%f0,%f0 | ||
24 | .type _sparcv9_vis1_probe,#function | ||
25 | .size _sparcv9_vis1_probe,.-_sparcv9_vis1_probe | ||
26 | |||
27 | ! Probe and instrument VIS1 instruction. Output is number of cycles it | ||
28 | ! takes to execute rdtick and pair of VIS1 instructions. US-Tx VIS unit | ||
29 | ! is slow (documented to be 6 cycles on T2) and the core is in-order | ||
30 | ! single-issue, it should be possible to distinguish Tx reliably... | ||
31 | ! Observed return values are: | ||
32 | ! | ||
33 | ! UltraSPARC IIe 7 | ||
34 | ! UltraSPARC III 7 | ||
35 | ! UltraSPARC T1 24 | ||
36 | ! | ||
37 | ! Numbers for T2 and SPARC64 V-VII are more than welcomed. | ||
38 | ! | ||
39 | ! It would be possible to detect specifically US-T1 by instrumenting | ||
40 | ! fmul8ulx16, which is emulated on T1 and as such accounts for quite | ||
41 | ! a lot of %tick-s, couple of thousand on Linux... | ||
42 | .global _sparcv9_vis1_instrument | ||
43 | .align 8 | ||
44 | _sparcv9_vis1_instrument: | ||
45 | .word 0x91410000 !rd %tick,%o0 | ||
46 | .word 0x81b00d80 !fxor %f0,%f0,%f0 | ||
47 | .word 0x85b08d82 !fxor %f2,%f2,%f2 | ||
48 | .word 0x93410000 !rd %tick,%o1 | ||
49 | .word 0x81b00d80 !fxor %f0,%f0,%f0 | ||
50 | .word 0x85b08d82 !fxor %f2,%f2,%f2 | ||
51 | .word 0x95410000 !rd %tick,%o2 | ||
52 | .word 0x81b00d80 !fxor %f0,%f0,%f0 | ||
53 | .word 0x85b08d82 !fxor %f2,%f2,%f2 | ||
54 | .word 0x97410000 !rd %tick,%o3 | ||
55 | .word 0x81b00d80 !fxor %f0,%f0,%f0 | ||
56 | .word 0x85b08d82 !fxor %f2,%f2,%f2 | ||
57 | .word 0x99410000 !rd %tick,%o4 | ||
58 | |||
59 | ! calculate intervals | ||
60 | sub %o1,%o0,%o0 | ||
61 | sub %o2,%o1,%o1 | ||
62 | sub %o3,%o2,%o2 | ||
63 | sub %o4,%o3,%o3 | ||
64 | |||
65 | ! find minimum value | ||
66 | cmp %o0,%o1 | ||
67 | .word 0x38680002 !bgu,a %xcc,.+8 | ||
68 | mov %o1,%o0 | ||
69 | cmp %o0,%o2 | ||
70 | .word 0x38680002 !bgu,a %xcc,.+8 | ||
71 | mov %o2,%o0 | ||
72 | cmp %o0,%o3 | ||
73 | .word 0x38680002 !bgu,a %xcc,.+8 | ||
74 | mov %o3,%o0 | ||
75 | |||
76 | retl | ||
77 | nop | ||
78 | .type _sparcv9_vis1_instrument,#function | ||
79 | .size _sparcv9_vis1_instrument,.-_sparcv9_vis1_instrument | ||
80 | |||
81 | .global _sparcv9_vis2_probe | ||
82 | .align 8 | ||
83 | _sparcv9_vis2_probe: | ||
84 | retl | ||
85 | .word 0x81b00980 !bshuffle %f0,%f0,%f0 | ||
86 | .type _sparcv9_vis2_probe,#function | ||
87 | .size _sparcv9_vis2_probe,.-_sparcv9_vis2_probe | ||
88 | |||
89 | .global _sparcv9_fmadd_probe | ||
90 | .align 8 | ||
91 | _sparcv9_fmadd_probe: | ||
92 | .word 0x81b00d80 !fxor %f0,%f0,%f0 | ||
93 | .word 0x85b08d82 !fxor %f2,%f2,%f2 | ||
94 | retl | ||
95 | .word 0x81b80440 !fmaddd %f0,%f0,%f2,%f0 | ||
96 | .type _sparcv9_fmadd_probe,#function | ||
97 | .size _sparcv9_fmadd_probe,.-_sparcv9_fmadd_probe | ||
98 | |||
99 | .section ".init",#alloc,#execinstr | ||
100 | call OPENSSL_cpuid_setup | ||
101 | nop | ||