Initial import

1 files changed, 402 insertions, 0 deletions

diff --git a/openssl/crypto/sparccpuid.S b/openssl/crypto/sparccpuid.S
new file mode 100644
index 00000000..ae61f7f5
--- /dev/null
+++ b/openssl/crypto/sparccpuid.S
@@ -0,0 +1,402 @@
+#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
+
+.text
+.align	32
+.global	OPENSSL_wipe_cpu
+.type	OPENSSL_wipe_cpu,#function
+! Keep in mind that this does not excuse us from wiping the stack!
+! This routine wipes registers, but not the backing store [which
+! resides on the stack, toward lower addresses]. To facilitate for
+! stack wiping I return pointer to the top of stack of the *caller*.
+OPENSSL_wipe_cpu:
+	save	%sp,FRAME,%sp
+	nop
+#ifdef __sun
+#include <sys/trap.h>
+	ta	ST_CLEAN_WINDOWS
+#else
+	call	.walk.reg.wins
+#endif
+	nop
+	call	.PIC.zero.up
+	mov	.zero-(.-4),%o0
+	ld	[%o0],%f0
+	ld	[%o0],%f1
+
+	subcc	%g0,1,%o0
+	! Following is V9 "rd %ccr,%o0" instruction. However! V8
+	! specification says that it ("rd %asr2,%o0" in V8 terms) does
+	! not cause illegal_instruction trap. It therefore can be used
+	! to determine if the CPU the code is executing on is V8- or
+	! V9-compliant, as V9 returns a distinct value of 0x99,
+	! "negative" and "borrow" bits set in both %icc and %xcc.
+	.word	0x91408000	!rd	%ccr,%o0
+	cmp	%o0,0x99
+	bne	.v8
+	nop
+			! Even though we do not use %fp register bank,
+			! we wipe it as memcpy might have used it...
+			.word	0xbfa00040	!fmovd	%f0,%f62
+			.word	0xbba00040	!...
+			.word	0xb7a00040
+			.word	0xb3a00040
+			.word	0xafa00040
+			.word	0xaba00040
+			.word	0xa7a00040
+			.word	0xa3a00040
+			.word	0x9fa00040
+			.word	0x9ba00040
+			.word	0x97a00040
+			.word	0x93a00040
+			.word	0x8fa00040
+			.word	0x8ba00040
+			.word	0x87a00040
+			.word	0x83a00040	!fmovd	%f0,%f32
+.v8:			fmovs	%f1,%f31
+	clr	%o0
+			fmovs	%f0,%f30
+	clr	%o1
+			fmovs	%f1,%f29
+	clr	%o2
+			fmovs	%f0,%f28
+	clr	%o3
+			fmovs	%f1,%f27
+	clr	%o4
+			fmovs	%f0,%f26
+	clr	%o5
+			fmovs	%f1,%f25
+	clr	%o7
+			fmovs	%f0,%f24
+	clr	%l0
+			fmovs	%f1,%f23
+	clr	%l1
+			fmovs	%f0,%f22
+	clr	%l2
+			fmovs	%f1,%f21
+	clr	%l3
+			fmovs	%f0,%f20
+	clr	%l4
+			fmovs	%f1,%f19
+	clr	%l5
+			fmovs	%f0,%f18
+	clr	%l6
+			fmovs	%f1,%f17
+	clr	%l7
+			fmovs	%f0,%f16
+	clr	%i0
+			fmovs	%f1,%f15
+	clr	%i1
+			fmovs	%f0,%f14
+	clr	%i2
+			fmovs	%f1,%f13
+	clr	%i3
+			fmovs	%f0,%f12
+	clr	%i4
+			fmovs	%f1,%f11
+	clr	%i5
+			fmovs	%f0,%f10
+	clr	%g1
+			fmovs	%f1,%f9
+	clr	%g2
+			fmovs	%f0,%f8
+	clr	%g3
+			fmovs	%f1,%f7
+	clr	%g4
+			fmovs	%f0,%f6
+	clr	%g5
+			fmovs	%f1,%f5
+			fmovs	%f0,%f4
+			fmovs	%f1,%f3
+			fmovs	%f0,%f2
+
+	add	%fp,BIAS,%i0	! return pointer to callerīs top of stack
+
+	ret
+	restore
+
+.zero:	.long	0x0,0x0
+.PIC.zero.up:
+	retl
+	add	%o0,%o7,%o0
+#ifdef DEBUG
+.global	walk_reg_wins
+.type	walk_reg_wins,#function
+walk_reg_wins:
+#endif
+.walk.reg.wins:
+	save	%sp,FRAME,%sp
+	cmp	%i7,%o7
+	be	2f
+	clr	%o0
+	cmp	%o7,0	! compiler never cleans %o7...
+	be	1f	! could have been a leaf function...
+	clr	%o1
+	call	.walk.reg.wins
+	nop
+1:	clr	%o2
+	clr	%o3
+	clr	%o4
+	clr	%o5
+	clr	%o7
+	clr	%l0
+	clr	%l1
+	clr	%l2
+	clr	%l3
+	clr	%l4
+	clr	%l5
+	clr	%l6
+	clr	%l7
+	add	%o0,1,%i0	! used for debugging
+2:	ret
+	restore
+.size	OPENSSL_wipe_cpu,.-OPENSSL_wipe_cpu
+
+.global	OPENSSL_atomic_add
+.type	OPENSSL_atomic_add,#function
+.align	32
+OPENSSL_atomic_add:
+#ifndef ABI64
+	subcc	%g0,1,%o2
+	.word	0x95408000	!rd	%ccr,%o2, see comment above
+	cmp	%o2,0x99
+	be	.v9
+	nop
+	save	%sp,FRAME,%sp
+	ba	.enter
+	nop
+#ifdef __sun
+! Note that you do not have to link with libthread to call thr_yield,
+! as libc provides a stub, which is overloaded the moment you link
+! with *either* libpthread or libthread...
+#define	YIELD_CPU	thr_yield
+#else
+! applies at least to Linux and FreeBSD... Feedback expected...
+#define	YIELD_CPU	sched_yield
+#endif
+.spin:	call	YIELD_CPU
+	nop
+.enter:	ld	[%i0],%i2
+	cmp	%i2,-4096
+	be	.spin
+	mov	-1,%i2
+	swap	[%i0],%i2
+	cmp	%i2,-1
+	be	.spin
+	add	%i2,%i1,%i2
+	stbar
+	st	%i2,[%i0]
+	sra	%i2,%g0,%i0
+	ret
+	restore
+.v9:
+#endif
+	ld	[%o0],%o2
+1:	add	%o1,%o2,%o3
+	.word	0xd7e2100a	!cas [%o0],%o2,%o3, compare [%o0] with %o2 and swap %o3
+	cmp	%o2,%o3
+	bne	1b
+	mov	%o3,%o2		! cas is always fetching to dest. register
+	add	%o1,%o2,%o0	! OpenSSL expects the new value
+	retl
+	sra	%o0,%g0,%o0	! we return signed int, remember?
+.size	OPENSSL_atomic_add,.-OPENSSL_atomic_add
+
+.global	_sparcv9_rdtick
+.align	32
+_sparcv9_rdtick:
+	subcc	%g0,1,%o0
+	.word	0x91408000	!rd	%ccr,%o0
+	cmp	%o0,0x99
+	bne	.notick
+	xor	%o0,%o0,%o0
+	.word	0x91410000	!rd	%tick,%o0
+	retl
+	.word	0x93323020	!srlx	%o0,32,%o1
+.notick:
+	retl
+	xor	%o1,%o1,%o1
+.type	_sparcv9_rdtick,#function
+.size	_sparcv9_rdtick,.-_sparcv9_rdtick
+
+.global	_sparcv9_vis1_probe
+.align	8
+_sparcv9_vis1_probe:
+	.word	0x81b00d80	!fxor	%f0,%f0,%f0
+	add	%sp,BIAS+2,%o1
+	retl
+	.word	0xc19a5a40	!ldda	[%o1]ASI_FP16_P,%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 minumum 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
+
+.global	OPENSSL_cleanse
+.align	32
+OPENSSL_cleanse:
+	cmp	%o1,14
+	nop
+#ifdef ABI64
+	bgu	%xcc,.Lot
+#else
+	bgu	.Lot
+#endif
+	cmp	%o1,0
+	bne	.Little
+	nop
+	retl
+	nop
+
+.Little:
+	stb	%g0,[%o0]
+	subcc	%o1,1,%o1
+	bnz	.Little
+	add	%o0,1,%o0
+	retl
+	nop
+.align	32
+.Lot:
+#ifndef ABI64
+	subcc	%g0,1,%g1
+	! see above for explanation
+	.word	0x83408000	!rd	%ccr,%g1
+	cmp	%g1,0x99
+	bne	.v8lot
+	nop
+#endif
+
+.v9lot:	andcc	%o0,7,%g0
+	bz	.v9aligned
+	nop
+	stb	%g0,[%o0]
+	sub	%o1,1,%o1
+	ba	.v9lot
+	add	%o0,1,%o0
+.align	16,0x01000000
+.v9aligned:
+	.word	0xc0720000	!stx	%g0,[%o0]
+	sub	%o1,8,%o1
+	andcc	%o1,-8,%g0
+#ifdef ABI64
+	.word	0x126ffffd	!bnz	%xcc,.v9aligned
+#else
+	.word	0x124ffffd	!bnz	%icc,.v9aligned
+#endif
+	add	%o0,8,%o0
+
+	cmp	%o1,0
+	bne	.Little
+	nop
+	retl
+	nop
+#ifndef ABI64
+.v8lot:	andcc	%o0,3,%g0
+	bz	.v8aligned
+	nop
+	stb	%g0,[%o0]
+	sub	%o1,1,%o1
+	ba	.v8lot
+	add	%o0,1,%o0
+	nop
+.v8aligned:
+	st	%g0,[%o0]
+	sub	%o1,4,%o1
+	andcc	%o1,-4,%g0
+	bnz	.v8aligned
+	add	%o0,4,%o0
+
+	cmp	%o1,0
+	bne	.Little
+	nop
+	retl
+	nop
+#endif
+.type	OPENSSL_cleanse,#function
+.size	OPENSSL_cleanse,.-OPENSSL_cleanse
+
+.section	".init",#alloc,#execinstr
+	call	OPENSSL_cpuid_setup
+	nop