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5012bd2dc6
Drop 'inline' from all the *_mod_init_arch() functions so that the compiler will warn about any bugs where they are unused due to not being wired up properly. (There are no such bugs currently, so this just establishes a more robust convention for the future. Of course, these functions also tend to get inlined anyway, regardless of the keyword.) Link: https://lore.kernel.org/r/20250816020457.432040-1-ebiggers@kernel.org Signed-off-by: Eric Biggers <ebiggers@kernel.org>
43 lines
1.2 KiB
C
43 lines
1.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/*
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* SHA-512 accelerated using the sparc64 sha512 opcodes
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*
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* Copyright (c) Jean-Luc Cooke <jlcooke@certainkey.com>
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* Copyright (c) Andrew McDonald <andrew@mcdonald.org.uk>
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* Copyright (c) 2003 Kyle McMartin <kyle@debian.org>
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*/
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#include <asm/elf.h>
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#include <asm/opcodes.h>
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#include <asm/pstate.h>
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static __ro_after_init DEFINE_STATIC_KEY_FALSE(have_sha512_opcodes);
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asmlinkage void sha512_sparc64_transform(struct sha512_block_state *state,
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const u8 *data, size_t nblocks);
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static void sha512_blocks(struct sha512_block_state *state,
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const u8 *data, size_t nblocks)
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{
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if (static_branch_likely(&have_sha512_opcodes))
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sha512_sparc64_transform(state, data, nblocks);
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else
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sha512_blocks_generic(state, data, nblocks);
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}
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#define sha512_mod_init_arch sha512_mod_init_arch
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static void sha512_mod_init_arch(void)
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{
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unsigned long cfr;
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if (!(sparc64_elf_hwcap & HWCAP_SPARC_CRYPTO))
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return;
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__asm__ __volatile__("rd %%asr26, %0" : "=r" (cfr));
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if (!(cfr & CFR_SHA512))
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return;
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static_branch_enable(&have_sha512_opcodes);
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pr_info("Using sparc64 sha512 opcode optimized SHA-512/SHA-384 implementation\n");
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}
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