mirror of
git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
synced 2025-09-04 20:19:47 +08:00
699618d422
Instead of providing crypto_shash algorithms for the arch-optimized SHA-256 code, instead implement the SHA-256 library. This is much simpler, it makes the SHA-256 library functions be arch-optimized, and it fixes the longstanding issue where the arch-optimized SHA-256 was disabled by default. SHA-256 still remains available through crypto_shash, but individual architectures no longer need to handle it. Signed-off-by: Eric Biggers <ebiggers@google.com> Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
79 lines
1.5 KiB
ArmAsm
79 lines
1.5 KiB
ArmAsm
/* SPDX-License-Identifier: GPL-2.0 */
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#include <linux/linkage.h>
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#include <asm/opcodes.h>
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#include <asm/visasm.h>
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ENTRY(sha256_sparc64_transform)
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/* %o0 = state, %o1 = data, %o2 = nblocks */
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VISEntryHalf
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ld [%o0 + 0x00], %f0
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ld [%o0 + 0x04], %f1
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ld [%o0 + 0x08], %f2
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ld [%o0 + 0x0c], %f3
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ld [%o0 + 0x10], %f4
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ld [%o0 + 0x14], %f5
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andcc %o1, 0x7, %g0
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ld [%o0 + 0x18], %f6
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bne,pn %xcc, 10f
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ld [%o0 + 0x1c], %f7
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1:
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ldd [%o1 + 0x00], %f8
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ldd [%o1 + 0x08], %f10
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ldd [%o1 + 0x10], %f12
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ldd [%o1 + 0x18], %f14
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ldd [%o1 + 0x20], %f16
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ldd [%o1 + 0x28], %f18
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ldd [%o1 + 0x30], %f20
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ldd [%o1 + 0x38], %f22
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SHA256
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subcc %o2, 1, %o2
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bne,pt %xcc, 1b
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add %o1, 0x40, %o1
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5:
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st %f0, [%o0 + 0x00]
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st %f1, [%o0 + 0x04]
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st %f2, [%o0 + 0x08]
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st %f3, [%o0 + 0x0c]
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st %f4, [%o0 + 0x10]
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st %f5, [%o0 + 0x14]
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st %f6, [%o0 + 0x18]
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st %f7, [%o0 + 0x1c]
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retl
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VISExitHalf
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10:
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alignaddr %o1, %g0, %o1
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ldd [%o1 + 0x00], %f10
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1:
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ldd [%o1 + 0x08], %f12
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ldd [%o1 + 0x10], %f14
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ldd [%o1 + 0x18], %f16
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ldd [%o1 + 0x20], %f18
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ldd [%o1 + 0x28], %f20
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ldd [%o1 + 0x30], %f22
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ldd [%o1 + 0x38], %f24
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ldd [%o1 + 0x40], %f26
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faligndata %f10, %f12, %f8
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faligndata %f12, %f14, %f10
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faligndata %f14, %f16, %f12
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faligndata %f16, %f18, %f14
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faligndata %f18, %f20, %f16
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faligndata %f20, %f22, %f18
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faligndata %f22, %f24, %f20
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faligndata %f24, %f26, %f22
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SHA256
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subcc %o2, 1, %o2
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fsrc2 %f26, %f10
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bne,pt %xcc, 1b
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add %o1, 0x40, %o1
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ba,a,pt %xcc, 5b
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ENDPROC(sha256_sparc64_transform)
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