summaryrefslogtreecommitdiff
path: root/arch/sparc
diff options
context:
space:
mode:
Diffstat (limited to 'arch/sparc')
-rw-r--r--arch/sparc/crypto/Kconfig10
-rw-r--r--arch/sparc/crypto/Makefile4
-rw-r--r--arch/sparc/crypto/md5_asm.S70
-rw-r--r--arch/sparc/crypto/md5_glue.c174
-rw-r--r--arch/sparc/include/asm/bitops_64.h8
5 files changed, 4 insertions, 262 deletions
diff --git a/arch/sparc/crypto/Kconfig b/arch/sparc/crypto/Kconfig
index f5b2e720fec3..f755da979534 100644
--- a/arch/sparc/crypto/Kconfig
+++ b/arch/sparc/crypto/Kconfig
@@ -16,16 +16,6 @@ config CRYPTO_DES_SPARC64
Architecture: sparc64
-config CRYPTO_MD5_SPARC64
- tristate "Digests: MD5"
- depends on SPARC64
- select CRYPTO_MD5
- select CRYPTO_HASH
- help
- MD5 message digest algorithm (RFC1321)
-
- Architecture: sparc64 using crypto instructions, when available
-
config CRYPTO_AES_SPARC64
tristate "Ciphers: AES, modes: ECB, CBC, CTR"
depends on SPARC64
diff --git a/arch/sparc/crypto/Makefile b/arch/sparc/crypto/Makefile
index 0d05a17988c4..7b4796842ddd 100644
--- a/arch/sparc/crypto/Makefile
+++ b/arch/sparc/crypto/Makefile
@@ -3,14 +3,10 @@
# Arch-specific CryptoAPI modules.
#
-obj-$(CONFIG_CRYPTO_MD5_SPARC64) += md5-sparc64.o
-
obj-$(CONFIG_CRYPTO_AES_SPARC64) += aes-sparc64.o
obj-$(CONFIG_CRYPTO_DES_SPARC64) += des-sparc64.o
obj-$(CONFIG_CRYPTO_CAMELLIA_SPARC64) += camellia-sparc64.o
-md5-sparc64-y := md5_asm.o md5_glue.o
-
aes-sparc64-y := aes_asm.o aes_glue.o
des-sparc64-y := des_asm.o des_glue.o
camellia-sparc64-y := camellia_asm.o camellia_glue.o
diff --git a/arch/sparc/crypto/md5_asm.S b/arch/sparc/crypto/md5_asm.S
deleted file mode 100644
index 60b544e4d205..000000000000
--- a/arch/sparc/crypto/md5_asm.S
+++ /dev/null
@@ -1,70 +0,0 @@
-/* SPDX-License-Identifier: GPL-2.0 */
-#include <linux/linkage.h>
-#include <asm/opcodes.h>
-#include <asm/visasm.h>
-
-ENTRY(md5_sparc64_transform)
- /* %o0 = digest, %o1 = data, %o2 = rounds */
- VISEntryHalf
- ld [%o0 + 0x00], %f0
- ld [%o0 + 0x04], %f1
- andcc %o1, 0x7, %g0
- ld [%o0 + 0x08], %f2
- bne,pn %xcc, 10f
- ld [%o0 + 0x0c], %f3
-
-1:
- ldd [%o1 + 0x00], %f8
- ldd [%o1 + 0x08], %f10
- ldd [%o1 + 0x10], %f12
- ldd [%o1 + 0x18], %f14
- ldd [%o1 + 0x20], %f16
- ldd [%o1 + 0x28], %f18
- ldd [%o1 + 0x30], %f20
- ldd [%o1 + 0x38], %f22
-
- MD5
-
- subcc %o2, 1, %o2
- bne,pt %xcc, 1b
- add %o1, 0x40, %o1
-
-5:
- st %f0, [%o0 + 0x00]
- st %f1, [%o0 + 0x04]
- st %f2, [%o0 + 0x08]
- st %f3, [%o0 + 0x0c]
- retl
- VISExitHalf
-10:
- alignaddr %o1, %g0, %o1
-
- ldd [%o1 + 0x00], %f10
-1:
- ldd [%o1 + 0x08], %f12
- ldd [%o1 + 0x10], %f14
- ldd [%o1 + 0x18], %f16
- ldd [%o1 + 0x20], %f18
- ldd [%o1 + 0x28], %f20
- ldd [%o1 + 0x30], %f22
- ldd [%o1 + 0x38], %f24
- ldd [%o1 + 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
-
- MD5
-
- subcc %o2, 1, %o2
- fsrc2 %f26, %f10
- bne,pt %xcc, 1b
- add %o1, 0x40, %o1
-
- ba,a,pt %xcc, 5b
-ENDPROC(md5_sparc64_transform)
diff --git a/arch/sparc/crypto/md5_glue.c b/arch/sparc/crypto/md5_glue.c
deleted file mode 100644
index b3615f0cdf62..000000000000
--- a/arch/sparc/crypto/md5_glue.c
+++ /dev/null
@@ -1,174 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0-only
-/* Glue code for MD5 hashing optimized for sparc64 crypto opcodes.
- *
- * This is based largely upon arch/x86/crypto/sha1_ssse3_glue.c
- * and crypto/md5.c which are:
- *
- * Copyright (c) Alan Smithee.
- * Copyright (c) Andrew McDonald <andrew@mcdonald.org.uk>
- * Copyright (c) Jean-Francois Dive <jef@linuxbe.org>
- * Copyright (c) Mathias Krause <minipli@googlemail.com>
- * Copyright (c) Cryptoapi developers.
- * Copyright (c) 2002 James Morris <jmorris@intercode.com.au>
- */
-
-#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
-
-#include <asm/elf.h>
-#include <asm/opcodes.h>
-#include <asm/pstate.h>
-#include <crypto/internal/hash.h>
-#include <crypto/md5.h>
-#include <linux/errno.h>
-#include <linux/kernel.h>
-#include <linux/module.h>
-#include <linux/string.h>
-#include <linux/unaligned.h>
-
-struct sparc_md5_state {
- __le32 hash[MD5_HASH_WORDS];
- u64 byte_count;
-};
-
-asmlinkage void md5_sparc64_transform(__le32 *digest, const char *data,
- unsigned int rounds);
-
-static int md5_sparc64_init(struct shash_desc *desc)
-{
- struct sparc_md5_state *mctx = shash_desc_ctx(desc);
-
- mctx->hash[0] = cpu_to_le32(MD5_H0);
- mctx->hash[1] = cpu_to_le32(MD5_H1);
- mctx->hash[2] = cpu_to_le32(MD5_H2);
- mctx->hash[3] = cpu_to_le32(MD5_H3);
- mctx->byte_count = 0;
-
- return 0;
-}
-
-static int md5_sparc64_update(struct shash_desc *desc, const u8 *data,
- unsigned int len)
-{
- struct sparc_md5_state *sctx = shash_desc_ctx(desc);
-
- sctx->byte_count += round_down(len, MD5_HMAC_BLOCK_SIZE);
- md5_sparc64_transform(sctx->hash, data, len / MD5_HMAC_BLOCK_SIZE);
- return len - round_down(len, MD5_HMAC_BLOCK_SIZE);
-}
-
-/* Add padding and return the message digest. */
-static int md5_sparc64_finup(struct shash_desc *desc, const u8 *src,
- unsigned int offset, u8 *out)
-{
- struct sparc_md5_state *sctx = shash_desc_ctx(desc);
- __le64 block[MD5_BLOCK_WORDS] = {};
- u8 *p = memcpy(block, src, offset);
- __le32 *dst = (__le32 *)out;
- __le64 *pbits;
- int i;
-
- src = p;
- p += offset;
- *p++ = 0x80;
- sctx->byte_count += offset;
- pbits = &block[(MD5_BLOCK_WORDS / (offset > 55 ? 1 : 2)) - 1];
- *pbits = cpu_to_le64(sctx->byte_count << 3);
- md5_sparc64_transform(sctx->hash, src, (pbits - block + 1) / 8);
- memzero_explicit(block, sizeof(block));
-
- /* Store state in digest */
- for (i = 0; i < MD5_HASH_WORDS; i++)
- dst[i] = sctx->hash[i];
-
- return 0;
-}
-
-static int md5_sparc64_export(struct shash_desc *desc, void *out)
-{
- struct sparc_md5_state *sctx = shash_desc_ctx(desc);
- union {
- u8 *u8;
- u32 *u32;
- u64 *u64;
- } p = { .u8 = out };
- int i;
-
- for (i = 0; i < MD5_HASH_WORDS; i++)
- put_unaligned(le32_to_cpu(sctx->hash[i]), p.u32++);
- put_unaligned(sctx->byte_count, p.u64);
- return 0;
-}
-
-static int md5_sparc64_import(struct shash_desc *desc, const void *in)
-{
- struct sparc_md5_state *sctx = shash_desc_ctx(desc);
- union {
- const u8 *u8;
- const u32 *u32;
- const u64 *u64;
- } p = { .u8 = in };
- int i;
-
- for (i = 0; i < MD5_HASH_WORDS; i++)
- sctx->hash[i] = cpu_to_le32(get_unaligned(p.u32++));
- sctx->byte_count = get_unaligned(p.u64);
- return 0;
-}
-
-static struct shash_alg alg = {
- .digestsize = MD5_DIGEST_SIZE,
- .init = md5_sparc64_init,
- .update = md5_sparc64_update,
- .finup = md5_sparc64_finup,
- .export = md5_sparc64_export,
- .import = md5_sparc64_import,
- .descsize = sizeof(struct sparc_md5_state),
- .statesize = sizeof(struct sparc_md5_state),
- .base = {
- .cra_name = "md5",
- .cra_driver_name= "md5-sparc64",
- .cra_priority = SPARC_CR_OPCODE_PRIORITY,
- .cra_flags = CRYPTO_AHASH_ALG_BLOCK_ONLY,
- .cra_blocksize = MD5_HMAC_BLOCK_SIZE,
- .cra_module = THIS_MODULE,
- }
-};
-
-static bool __init sparc64_has_md5_opcode(void)
-{
- unsigned long cfr;
-
- if (!(sparc64_elf_hwcap & HWCAP_SPARC_CRYPTO))
- return false;
-
- __asm__ __volatile__("rd %%asr26, %0" : "=r" (cfr));
- if (!(cfr & CFR_MD5))
- return false;
-
- return true;
-}
-
-static int __init md5_sparc64_mod_init(void)
-{
- if (sparc64_has_md5_opcode()) {
- pr_info("Using sparc64 md5 opcode optimized MD5 implementation\n");
- return crypto_register_shash(&alg);
- }
- pr_info("sparc64 md5 opcode not available.\n");
- return -ENODEV;
-}
-
-static void __exit md5_sparc64_mod_fini(void)
-{
- crypto_unregister_shash(&alg);
-}
-
-module_init(md5_sparc64_mod_init);
-module_exit(md5_sparc64_mod_fini);
-
-MODULE_LICENSE("GPL");
-MODULE_DESCRIPTION("MD5 Message Digest Algorithm, sparc64 md5 opcode accelerated");
-
-MODULE_ALIAS_CRYPTO("md5");
-
-#include "crop_devid.c"
diff --git a/arch/sparc/include/asm/bitops_64.h b/arch/sparc/include/asm/bitops_64.h
index 005a8ae858f1..2c7d33b3ec2e 100644
--- a/arch/sparc/include/asm/bitops_64.h
+++ b/arch/sparc/include/asm/bitops_64.h
@@ -23,8 +23,8 @@ void set_bit(unsigned long nr, volatile unsigned long *addr);
void clear_bit(unsigned long nr, volatile unsigned long *addr);
void change_bit(unsigned long nr, volatile unsigned long *addr);
-int fls(unsigned int word);
-int __fls(unsigned long word);
+int __attribute_const__ fls(unsigned int word);
+int __attribute_const__ __fls(unsigned long word);
#include <asm-generic/bitops/non-atomic.h>
@@ -32,8 +32,8 @@ int __fls(unsigned long word);
#ifdef __KERNEL__
-int ffs(int x);
-unsigned long __ffs(unsigned long);
+int __attribute_const__ ffs(int x);
+unsigned long __attribute_const__ __ffs(unsigned long);
#include <asm-generic/bitops/ffz.h>
#include <asm-generic/bitops/sched.h>
generated by cgit v1.2.3 (git 2.46.0) at 2025-09-30 16:44:42 +0000