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crypto: move x86 to the generic version of ablk_helper 

Move all users of ablk_helper under x86/ to the generic version
and delete the x86 specific version.

Acked-by: Jussi Kivilinna <jussi.kivilinna@iki.fi>
Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
hifive-unleashed-5.1
Ard Biesheuvel 2013-09-20 09:55:41 +02:00 committed by Herbert Xu
parent a62b01cd6c
commit 801201aa25
14 changed files with 30 additions and 205 deletions
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1
arch/x86/crypto/Makefile
View File

@ -6,7 +6,6 @@ avx_supported := $(call as-instr,vpxor %xmm0$(comma)%xmm0$(comma)%xmm0,yes,no)
avx2_supported := $(call as-instr,vpgatherdd %ymm0$(comma)(%eax$(comma)%ymm1\
$(comma)4)$(comma)%ymm2,yes,no)
obj-$(CONFIG_CRYPTO_ABLK_HELPER_X86) += ablk_helper.o
obj-$(CONFIG_CRYPTO_GLUE_HELPER_X86) += glue_helper.o
obj-$(CONFIG_CRYPTO_AES_586) += aes-i586.o

149
arch/x86/crypto/ablk_helper.c
View File

@ -1,149 +0,0 @@
/*
* Shared async block cipher helpers
*
* Copyright (c) 2012 Jussi Kivilinna <jussi.kivilinna@mbnet.fi>
*
* Based on aesni-intel_glue.c by:
* Copyright (C) 2008, Intel Corp.
* Author: Huang Ying <ying.huang@intel.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*
*/
#include <linux/kernel.h>
#include <linux/crypto.h>
#include <linux/init.h>
#include <linux/module.h>
#include <crypto/algapi.h>
#include <crypto/cryptd.h>
#include <asm/i387.h>
#include <asm/crypto/ablk_helper.h>
int ablk_set_key(struct crypto_ablkcipher *tfm, const u8 *key,
unsigned int key_len)
{
struct async_helper_ctx *ctx = crypto_ablkcipher_ctx(tfm);
struct crypto_ablkcipher *child = &ctx->cryptd_tfm->base;
int err;
crypto_ablkcipher_clear_flags(child, CRYPTO_TFM_REQ_MASK);
crypto_ablkcipher_set_flags(child, crypto_ablkcipher_get_flags(tfm)
& CRYPTO_TFM_REQ_MASK);
err = crypto_ablkcipher_setkey(child, key, key_len);
crypto_ablkcipher_set_flags(tfm, crypto_ablkcipher_get_flags(child)
& CRYPTO_TFM_RES_MASK);
return err;
}
EXPORT_SYMBOL_GPL(ablk_set_key);
int __ablk_encrypt(struct ablkcipher_request *req)
{
struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req);
struct async_helper_ctx *ctx = crypto_ablkcipher_ctx(tfm);
struct blkcipher_desc desc;
desc.tfm = cryptd_ablkcipher_child(ctx->cryptd_tfm);
desc.info = req->info;
desc.flags = 0;
return crypto_blkcipher_crt(desc.tfm)->encrypt(
&desc, req->dst, req->src, req->nbytes);
}
EXPORT_SYMBOL_GPL(__ablk_encrypt);
int ablk_encrypt(struct ablkcipher_request *req)
{
struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req);
struct async_helper_ctx *ctx = crypto_ablkcipher_ctx(tfm);
if (!irq_fpu_usable()) {
struct ablkcipher_request *cryptd_req =
ablkcipher_request_ctx(req);
memcpy(cryptd_req, req, sizeof(*req));
ablkcipher_request_set_tfm(cryptd_req, &ctx->cryptd_tfm->base);
return crypto_ablkcipher_encrypt(cryptd_req);
} else {
return __ablk_encrypt(req);
}
}
EXPORT_SYMBOL_GPL(ablk_encrypt);
int ablk_decrypt(struct ablkcipher_request *req)
{
struct crypto_ablkcipher *tfm = crypto_ablkcipher_reqtfm(req);
struct async_helper_ctx *ctx = crypto_ablkcipher_ctx(tfm);
if (!irq_fpu_usable()) {
struct ablkcipher_request *cryptd_req =
ablkcipher_request_ctx(req);
memcpy(cryptd_req, req, sizeof(*req));
ablkcipher_request_set_tfm(cryptd_req, &ctx->cryptd_tfm->base);
return crypto_ablkcipher_decrypt(cryptd_req);
} else {
struct blkcipher_desc desc;
desc.tfm = cryptd_ablkcipher_child(ctx->cryptd_tfm);
desc.info = req->info;
desc.flags = 0;
return crypto_blkcipher_crt(desc.tfm)->decrypt(
&desc, req->dst, req->src, req->nbytes);
}
}
EXPORT_SYMBOL_GPL(ablk_decrypt);
void ablk_exit(struct crypto_tfm *tfm)
{
struct async_helper_ctx *ctx = crypto_tfm_ctx(tfm);
cryptd_free_ablkcipher(ctx->cryptd_tfm);
}
EXPORT_SYMBOL_GPL(ablk_exit);
int ablk_init_common(struct crypto_tfm *tfm, const char *drv_name)
{
struct async_helper_ctx *ctx = crypto_tfm_ctx(tfm);
struct cryptd_ablkcipher *cryptd_tfm;
cryptd_tfm = cryptd_alloc_ablkcipher(drv_name, 0, 0);
if (IS_ERR(cryptd_tfm))
return PTR_ERR(cryptd_tfm);
ctx->cryptd_tfm = cryptd_tfm;
tfm->crt_ablkcipher.reqsize = sizeof(struct ablkcipher_request) +
crypto_ablkcipher_reqsize(&cryptd_tfm->base);
return 0;
}
EXPORT_SYMBOL_GPL(ablk_init_common);
int ablk_init(struct crypto_tfm *tfm)
{
char drv_name[CRYPTO_MAX_ALG_NAME];
snprintf(drv_name, sizeof(drv_name), "__driver-%s",
crypto_tfm_alg_driver_name(tfm));
return ablk_init_common(tfm, drv_name);
}
EXPORT_SYMBOL_GPL(ablk_init);
MODULE_LICENSE("GPL");

2
arch/x86/crypto/aesni-intel_glue.c
View File

@ -34,7 +34,7 @@
#include <asm/cpu_device_id.h>
#include <asm/i387.h>
#include <asm/crypto/aes.h>
#include <asm/crypto/ablk_helper.h>
#include <crypto/ablk_helper.h>
#include <crypto/scatterwalk.h>
#include <crypto/internal/aead.h>
#include <linux/workqueue.h>

2
arch/x86/crypto/camellia_aesni_avx2_glue.c
View File

@ -14,6 +14,7 @@
#include <linux/types.h>
#include <linux/crypto.h>
#include <linux/err.h>
#include <crypto/ablk_helper.h>
#include <crypto/algapi.h>
#include <crypto/ctr.h>
#include <crypto/lrw.h>
@ -21,7 +22,6 @@
#include <asm/xcr.h>
#include <asm/xsave.h>
#include <asm/crypto/camellia.h>
#include <asm/crypto/ablk_helper.h>
#include <asm/crypto/glue_helper.h>
#define CAMELLIA_AESNI_PARALLEL_BLOCKS 16

2
arch/x86/crypto/camellia_aesni_avx_glue.c
View File

@ -14,6 +14,7 @@
#include <linux/types.h>
#include <linux/crypto.h>
#include <linux/err.h>
#include <crypto/ablk_helper.h>
#include <crypto/algapi.h>
#include <crypto/ctr.h>
#include <crypto/lrw.h>
@ -21,7 +22,6 @@
#include <asm/xcr.h>
#include <asm/xsave.h>
#include <asm/crypto/camellia.h>
#include <asm/crypto/ablk_helper.h>
#include <asm/crypto/glue_helper.h>
#define CAMELLIA_AESNI_PARALLEL_BLOCKS 16

2
arch/x86/crypto/cast5_avx_glue.c
View File

@ -26,13 +26,13 @@
#include <linux/types.h>
#include <linux/crypto.h>
#include <linux/err.h>
#include <crypto/ablk_helper.h>
#include <crypto/algapi.h>
#include <crypto/cast5.h>
#include <crypto/cryptd.h>
#include <crypto/ctr.h>
#include <asm/xcr.h>
#include <asm/xsave.h>
#include <asm/crypto/ablk_helper.h>
#include <asm/crypto/glue_helper.h>
#define CAST5_PARALLEL_BLOCKS 16

2
arch/x86/crypto/cast6_avx_glue.c
View File

@ -28,6 +28,7 @@
#include <linux/types.h>
#include <linux/crypto.h>
#include <linux/err.h>
#include <crypto/ablk_helper.h>
#include <crypto/algapi.h>
#include <crypto/cast6.h>
#include <crypto/cryptd.h>
@ -37,7 +38,6 @@
#include <crypto/xts.h>
#include <asm/xcr.h>
#include <asm/xsave.h>
#include <asm/crypto/ablk_helper.h>
#include <asm/crypto/glue_helper.h>
#define CAST6_PARALLEL_BLOCKS 8

2
arch/x86/crypto/serpent_avx2_glue.c
View File

@ -14,6 +14,7 @@
#include <linux/types.h>
#include <linux/crypto.h>
#include <linux/err.h>
#include <crypto/ablk_helper.h>
#include <crypto/algapi.h>
#include <crypto/ctr.h>
#include <crypto/lrw.h>
@ -22,7 +23,6 @@
#include <asm/xcr.h>
#include <asm/xsave.h>
#include <asm/crypto/serpent-avx.h>
#include <asm/crypto/ablk_helper.h>
#include <asm/crypto/glue_helper.h>
#define SERPENT_AVX2_PARALLEL_BLOCKS 16

2
arch/x86/crypto/serpent_avx_glue.c
View File

@ -28,6 +28,7 @@
#include <linux/types.h>
#include <linux/crypto.h>
#include <linux/err.h>
#include <crypto/ablk_helper.h>
#include <crypto/algapi.h>
#include <crypto/serpent.h>
#include <crypto/cryptd.h>
@ -38,7 +39,6 @@
#include <asm/xcr.h>
#include <asm/xsave.h>
#include <asm/crypto/serpent-avx.h>
#include <asm/crypto/ablk_helper.h>
#include <asm/crypto/glue_helper.h>
/* 8-way parallel cipher functions */

2
arch/x86/crypto/serpent_sse2_glue.c
View File

@ -34,6 +34,7 @@
#include <linux/types.h>
#include <linux/crypto.h>
#include <linux/err.h>
#include <crypto/ablk_helper.h>
#include <crypto/algapi.h>
#include <crypto/serpent.h>
#include <crypto/cryptd.h>
@ -42,7 +43,6 @@
#include <crypto/lrw.h>
#include <crypto/xts.h>
#include <asm/crypto/serpent-sse2.h>
#include <asm/crypto/ablk_helper.h>
#include <asm/crypto/glue_helper.h>
static void serpent_decrypt_cbc_xway(void *ctx, u128 *dst, const u128 *src)

2
arch/x86/crypto/twofish_avx_glue.c
View File

@ -28,6 +28,7 @@
#include <linux/types.h>
#include <linux/crypto.h>
#include <linux/err.h>
#include <crypto/ablk_helper.h>
#include <crypto/algapi.h>
#include <crypto/twofish.h>
#include <crypto/cryptd.h>
@ -39,7 +40,6 @@
#include <asm/xcr.h>
#include <asm/xsave.h>
#include <asm/crypto/twofish.h>
#include <asm/crypto/ablk_helper.h>
#include <asm/crypto/glue_helper.h>
#include <crypto/scatterwalk.h>
#include <linux/workqueue.h>

31
arch/x86/include/asm/crypto/ablk_helper.h
View File

@ -1,31 +0,0 @@
/*
* Shared async block cipher helpers
*/
#ifndef _CRYPTO_ABLK_HELPER_H
#define _CRYPTO_ABLK_HELPER_H
#include <linux/crypto.h>
#include <linux/kernel.h>
#include <crypto/cryptd.h>
struct async_helper_ctx {
struct cryptd_ablkcipher *cryptd_tfm;
};
extern int ablk_set_key(struct crypto_ablkcipher *tfm, const u8 *key,
unsigned int key_len);
extern int __ablk_encrypt(struct ablkcipher_request *req);
extern int ablk_encrypt(struct ablkcipher_request *req);
extern int ablk_decrypt(struct ablkcipher_request *req);
extern void ablk_exit(struct crypto_tfm *tfm);
extern int ablk_init_common(struct crypto_tfm *tfm, const char *drv_name);
extern int ablk_init(struct crypto_tfm *tfm);
#endif /* _CRYPTO_ABLK_HELPER_H */

11
arch/x86/include/asm/simd.h 100644
View File

@ -0,0 +1,11 @@
#include <asm/i387.h>
/*
* may_use_simd - whether it is allowable at this time to issue SIMD
* instructions or access the SIMD register file
*/
static __must_check inline bool may_use_simd(void)
{
return irq_fpu_usable();
}

25
crypto/Kconfig
View File

@ -174,11 +174,6 @@ config CRYPTO_TEST
help
Quick & dirty crypto test module.
config CRYPTO_ABLK_HELPER_X86
tristate
depends on X86
select CRYPTO_CRYPTD
config CRYPTO_ABLK_HELPER
tristate
select CRYPTO_CRYPTD
@ -699,7 +694,7 @@ config CRYPTO_AES_NI_INTEL
select CRYPTO_AES_X86_64 if 64BIT
select CRYPTO_AES_586 if !64BIT
select CRYPTO_CRYPTD
select CRYPTO_ABLK_HELPER_X86
select CRYPTO_ABLK_HELPER
select CRYPTO_ALGAPI
select CRYPTO_GLUE_HELPER_X86 if 64BIT
select CRYPTO_LRW
@ -883,7 +878,7 @@ config CRYPTO_CAMELLIA_AESNI_AVX_X86_64
depends on CRYPTO
select CRYPTO_ALGAPI
select CRYPTO_CRYPTD
select CRYPTO_ABLK_HELPER_X86
select CRYPTO_ABLK_HELPER
select CRYPTO_GLUE_HELPER_X86
select CRYPTO_CAMELLIA_X86_64
select CRYPTO_LRW
@ -905,7 +900,7 @@ config CRYPTO_CAMELLIA_AESNI_AVX2_X86_64
depends on CRYPTO
select CRYPTO_ALGAPI
select CRYPTO_CRYPTD
select CRYPTO_ABLK_HELPER_X86
select CRYPTO_ABLK_HELPER
select CRYPTO_GLUE_HELPER_X86
select CRYPTO_CAMELLIA_X86_64
select CRYPTO_CAMELLIA_AESNI_AVX_X86_64
@ -957,7 +952,7 @@ config CRYPTO_CAST5_AVX_X86_64
depends on X86 && 64BIT
select CRYPTO_ALGAPI
select CRYPTO_CRYPTD
select CRYPTO_ABLK_HELPER_X86
select CRYPTO_ABLK_HELPER
select CRYPTO_CAST_COMMON
select CRYPTO_CAST5
help
@ -980,7 +975,7 @@ config CRYPTO_CAST6_AVX_X86_64
depends on X86 && 64BIT
select CRYPTO_ALGAPI
select CRYPTO_CRYPTD
select CRYPTO_ABLK_HELPER_X86
select CRYPTO_ABLK_HELPER
select CRYPTO_GLUE_HELPER_X86
select CRYPTO_CAST_COMMON
select CRYPTO_CAST6
@ -1098,7 +1093,7 @@ config CRYPTO_SERPENT_SSE2_X86_64
depends on X86 && 64BIT
select CRYPTO_ALGAPI
select CRYPTO_CRYPTD
select CRYPTO_ABLK_HELPER_X86
select CRYPTO_ABLK_HELPER
select CRYPTO_GLUE_HELPER_X86
select CRYPTO_SERPENT
select CRYPTO_LRW
@ -1120,7 +1115,7 @@ config CRYPTO_SERPENT_SSE2_586
depends on X86 && !64BIT
select CRYPTO_ALGAPI
select CRYPTO_CRYPTD
select CRYPTO_ABLK_HELPER_X86
select CRYPTO_ABLK_HELPER
select CRYPTO_GLUE_HELPER_X86
select CRYPTO_SERPENT
select CRYPTO_LRW
@ -1142,7 +1137,7 @@ config CRYPTO_SERPENT_AVX_X86_64
depends on X86 && 64BIT
select CRYPTO_ALGAPI
select CRYPTO_CRYPTD
select CRYPTO_ABLK_HELPER_X86
select CRYPTO_ABLK_HELPER
select CRYPTO_GLUE_HELPER_X86
select CRYPTO_SERPENT
select CRYPTO_LRW
@ -1164,7 +1159,7 @@ config CRYPTO_SERPENT_AVX2_X86_64
depends on X86 && 64BIT
select CRYPTO_ALGAPI
select CRYPTO_CRYPTD
select CRYPTO_ABLK_HELPER_X86
select CRYPTO_ABLK_HELPER
select CRYPTO_GLUE_HELPER_X86
select CRYPTO_SERPENT
select CRYPTO_SERPENT_AVX_X86_64
@ -1280,7 +1275,7 @@ config CRYPTO_TWOFISH_AVX_X86_64
depends on X86 && 64BIT
select CRYPTO_ALGAPI
select CRYPTO_CRYPTD
select CRYPTO_ABLK_HELPER_X86
select CRYPTO_ABLK_HELPER
select CRYPTO_GLUE_HELPER_X86
select CRYPTO_TWOFISH_COMMON
select CRYPTO_TWOFISH_X86_64