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authorjsing <>2024-10-19 11:55:32 +0000
committerjsing <>2024-10-19 11:55:32 +0000
commitd2377970fef7d1c8e41cbb1d93b5e43185f032fc (patch)
treee262e353cde0d9c0bc08c5d4c53fe7fcd20971b3 /src/lib/libcrypto/sparccpuid.S
parent72bb07c05c2f77944ec97d3b037b16ca08be47ae (diff)
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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.S101
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