summary refs log tree commit diff
path: root/sysdeps/sparc/sparc64/multiarch/sha256-crop.S
diff options
context:
space:
mode:
Diffstat (limited to 'sysdeps/sparc/sparc64/multiarch/sha256-crop.S')
-rw-r--r--sysdeps/sparc/sparc64/multiarch/sha256-crop.S101
1 files changed, 101 insertions, 0 deletions
diff --git a/sysdeps/sparc/sparc64/multiarch/sha256-crop.S b/sysdeps/sparc/sparc64/multiarch/sha256-crop.S
new file mode 100644
index 0000000000..b79f536c48
--- /dev/null
+++ b/sysdeps/sparc/sparc64/multiarch/sha256-crop.S
@@ -0,0 +1,101 @@
+/* SHA256 using sparc crypto opcodes.
+   Copyright (C) 2012 Free Software Foundation, Inc.
+   This file is part of the GNU C Library.
+   Contributed by David S. Miller (davem@davemloft.net)
+
+   The GNU C Library is free software; you can redistribute it and/or
+   modify it under the terms of the GNU Lesser General Public
+   License as published by the Free Software Foundation; either
+   version 2.1 of the License, or (at your option) any later version.
+
+   The GNU C Library is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+   Lesser General Public License for more details.
+
+   You should have received a copy of the GNU Lesser General Public
+   License along with the GNU C Library; if not, see
+   <http://www.gnu.org/licenses/>.  */
+
+#include <sysdep.h>
+
+#define SHA256		\
+	.word	0x81b02840;
+
+	.text
+	.align	32
+ENTRY(__sha256_process_block_crop)
+	/* %o0=buffer, %o1=len, %o2=CTX */
+	ldx	[%o2 + 0x20], %g1
+	add	%g1, %o1, %g1
+	stx	%g1, [%o2 + 0x20]
+
+	ld	[%o2 + 0x00], %f0
+	ld	[%o2 + 0x04], %f1
+	ld	[%o2 + 0x08], %f2
+	ld	[%o2 + 0x0c], %f3
+	ld	[%o2 + 0x10], %f4
+	ld	[%o2 + 0x14], %f5
+	andcc	%o1, 0x7, %g0
+	ld	[%o2 + 0x18], %f6
+	bne,pn	%xcc, 10f
+	 ld	[%o2 + 0x1c], %f7
+
+1:
+	ldd	[%o0 + 0x00], %f8
+	ldd	[%o0 + 0x08], %f10
+	ldd	[%o0 + 0x10], %f12
+	ldd	[%o0 + 0x18], %f14
+	ldd	[%o0 + 0x20], %f16
+	ldd	[%o0 + 0x28], %f18
+	ldd	[%o0 + 0x30], %f20
+	ldd	[%o0 + 0x38], %f22
+
+	SHA256
+
+	subcc	%o1, 0x40, %o1
+	bne,pt	%xcc, 1b
+	 add	%o0, 0x40, %o0
+
+5:
+	st	%f0, [%o2 + 0x00]
+	st	%f1, [%o2 + 0x04]
+	st	%f2, [%o2 + 0x08]
+	st	%f3, [%o2 + 0x0c]
+	st	%f4, [%o2 + 0x10]
+	st	%f5, [%o2 + 0x14]
+	st	%f6, [%o2 + 0x18]
+	retl
+	 st	%f7, [%o2 + 0x1c]
+10:
+	alignaddr %o0, %g0, %o0
+
+	ldd	[%o0 + 0x00], %f10
+1:
+	ldd	[%o0 + 0x08], %f12
+	ldd	[%o0 + 0x10], %f14
+	ldd	[%o0 + 0x18], %f16
+	ldd	[%o0 + 0x20], %f18
+	ldd	[%o0 + 0x28], %f20
+	ldd	[%o0 + 0x30], %f22
+	ldd	[%o0 + 0x38], %f24
+	ldd	[%o0 + 0x40], %f26
+
+	faligndata %f10, %f12, %f8
+	faligndata %f12, %f14, %f10
+	faligndata %f14, %f16, %f12
+	faligndata %f16, %f18, %f14
+	faligndata %f18, %f20, %f16
+	faligndata %f20, %f22, %f18
+	faligndata %f22, %f24, %f20
+	faligndata %f24, %f26, %f22
+
+	SHA256
+
+	subcc	%o1, 0x40, %o1
+	fsrc2	%f26, %f10
+	bne,pt	%xcc, 1b
+	 add	%o0, 0x40, %o0
+
+	ba,a,pt	%xcc, 5b
+END(__sha256_process_block_crop)