Skip to content

L
linux
Commit ab8085c1 authored by Ard Biesheuvel's avatar Ard Biesheuvel Committed by Herbert Xu
Browse files
Options

crypto: x86 - remove SHA multibuffer routines and mcryptd 

As it turns out, the AVX2 multibuffer SHA routines are currently
broken [0], in a way that would have likely been noticed if this
code were in wide use. Since the code is too complicated to be
maintained by anyone except the original authors, and since the
performance benefits for real-world use cases are debatable to
begin with, it is better to drop it entirely for the moment.

[0] https://marc.info/?l=linux-crypto-vger&m=153476243825350&w=2Suggested-by: default avatarEric Biggers <ebiggers@google.com>
Cc: Megha Dey <megha.dey@linux.intel.com>
Cc: Tim Chen <tim.c.chen@linux.intel.com>
Cc: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: Martin Schwidefsky <schwidefsky@de.ibm.com>
Cc: Heiko Carstens <heiko.carstens@de.ibm.com>
Cc: Thomas Gleixner <tglx@linutronix.de>
Cc: Ingo Molnar <mingo@redhat.com>
Signed-off-by: default avatarArd Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: default avatarHerbert Xu <herbert@gondor.apana.org.au>
parent 820684cc
Show whitespace changes
Inline Side-by-side
Showing with 0 additions and 8952 deletions
MAINTAINERS
View file @ ab8085c1
......@@ -7503,14 +7503,6 @@ S: Supported
F: drivers/infiniband/hw/i40iw/
F: include/uapi/rdma/i40iw-abi.h
INTEL SHA MULTIBUFFER DRIVER
M: Megha Dey <megha.dey@linux.intel.com>
R: Tim Chen <tim.c.chen@linux.intel.com>
L: linux-crypto@vger.kernel.org
S: Supported
F: arch/x86/crypto/sha*-mb/
F: crypto/mcryptd.c
INTEL TELEMETRY DRIVER
M: Souvik Kumar Chakravarty <souvik.k.chakravarty@intel.com>
L: platform-driver-x86@vger.kernel.org
......
arch/m68k/configs/amiga_defconfig
View file @ ab8085c1
......@@ -621,7 +621,6 @@ CONFIG_CRYPTO_ECDH=m
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_USER=m
CONFIG_CRYPTO_CRYPTD=m
CONFIG_CRYPTO_MCRYPTD=m
CONFIG_CRYPTO_TEST=m
CONFIG_CRYPTO_CHACHA20POLY1305=m
CONFIG_CRYPTO_AEGIS128=m
......
arch/m68k/configs/apollo_defconfig
View file @ ab8085c1
......@@ -578,7 +578,6 @@ CONFIG_CRYPTO_ECDH=m
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_USER=m
CONFIG_CRYPTO_CRYPTD=m
CONFIG_CRYPTO_MCRYPTD=m
CONFIG_CRYPTO_TEST=m
CONFIG_CRYPTO_CHACHA20POLY1305=m
CONFIG_CRYPTO_AEGIS128=m
......
arch/m68k/configs/atari_defconfig
View file @ ab8085c1
......@@ -599,7 +599,6 @@ CONFIG_CRYPTO_ECDH=m
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_USER=m
CONFIG_CRYPTO_CRYPTD=m
CONFIG_CRYPTO_MCRYPTD=m
CONFIG_CRYPTO_TEST=m
CONFIG_CRYPTO_CHACHA20POLY1305=m
CONFIG_CRYPTO_AEGIS128=m
......
arch/m68k/configs/bvme6000_defconfig
View file @ ab8085c1
......@@ -570,7 +570,6 @@ CONFIG_CRYPTO_ECDH=m
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_USER=m
CONFIG_CRYPTO_CRYPTD=m
CONFIG_CRYPTO_MCRYPTD=m
CONFIG_CRYPTO_TEST=m
CONFIG_CRYPTO_CHACHA20POLY1305=m
CONFIG_CRYPTO_AEGIS128=m
......
arch/m68k/configs/hp300_defconfig
View file @ ab8085c1
......@@ -580,7 +580,6 @@ CONFIG_CRYPTO_ECDH=m
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_USER=m
CONFIG_CRYPTO_CRYPTD=m
CONFIG_CRYPTO_MCRYPTD=m
CONFIG_CRYPTO_TEST=m
CONFIG_CRYPTO_CHACHA20POLY1305=m
CONFIG_CRYPTO_AEGIS128=m
......
arch/m68k/configs/mac_defconfig
View file @ ab8085c1
......@@ -602,7 +602,6 @@ CONFIG_CRYPTO_ECDH=m
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_USER=m
CONFIG_CRYPTO_CRYPTD=m
CONFIG_CRYPTO_MCRYPTD=m
CONFIG_CRYPTO_TEST=m
CONFIG_CRYPTO_CHACHA20POLY1305=m
CONFIG_CRYPTO_AEGIS128=m
......
arch/m68k/configs/multi_defconfig
View file @ ab8085c1
......@@ -684,7 +684,6 @@ CONFIG_CRYPTO_ECDH=m
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_USER=m
CONFIG_CRYPTO_CRYPTD=m
CONFIG_CRYPTO_MCRYPTD=m
CONFIG_CRYPTO_TEST=m
CONFIG_CRYPTO_CHACHA20POLY1305=m
CONFIG_CRYPTO_AEGIS128=m
......
arch/m68k/configs/mvme147_defconfig
View file @ ab8085c1
......@@ -570,7 +570,6 @@ CONFIG_CRYPTO_ECDH=m
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_USER=m
CONFIG_CRYPTO_CRYPTD=m
CONFIG_CRYPTO_MCRYPTD=m
CONFIG_CRYPTO_TEST=m
CONFIG_CRYPTO_CHACHA20POLY1305=m
CONFIG_CRYPTO_AEGIS128=m
......
arch/m68k/configs/mvme16x_defconfig
View file @ ab8085c1
......@@ -570,7 +570,6 @@ CONFIG_CRYPTO_ECDH=m
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_USER=m
CONFIG_CRYPTO_CRYPTD=m
CONFIG_CRYPTO_MCRYPTD=m
CONFIG_CRYPTO_TEST=m
CONFIG_CRYPTO_CHACHA20POLY1305=m
CONFIG_CRYPTO_AEGIS128=m
......
arch/m68k/configs/q40_defconfig
View file @ ab8085c1
......@@ -593,7 +593,6 @@ CONFIG_CRYPTO_ECDH=m
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_USER=m
CONFIG_CRYPTO_CRYPTD=m
CONFIG_CRYPTO_MCRYPTD=m
CONFIG_CRYPTO_TEST=m
CONFIG_CRYPTO_CHACHA20POLY1305=m
CONFIG_CRYPTO_AEGIS128=m
......
arch/m68k/configs/sun3_defconfig
View file @ ab8085c1
......@@ -571,7 +571,6 @@ CONFIG_CRYPTO_ECDH=m
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_USER=m
CONFIG_CRYPTO_CRYPTD=m
CONFIG_CRYPTO_MCRYPTD=m
CONFIG_CRYPTO_TEST=m
CONFIG_CRYPTO_CHACHA20POLY1305=m
CONFIG_CRYPTO_AEGIS128=m
......
arch/m68k/configs/sun3x_defconfig
View file @ ab8085c1
......@@ -572,7 +572,6 @@ CONFIG_CRYPTO_ECDH=m
CONFIG_CRYPTO_MANAGER=y
CONFIG_CRYPTO_USER=m
CONFIG_CRYPTO_CRYPTD=m
CONFIG_CRYPTO_MCRYPTD=m
CONFIG_CRYPTO_TEST=m
CONFIG_CRYPTO_CHACHA20POLY1305=m
CONFIG_CRYPTO_AEGIS128=m
......
arch/s390/configs/debug_defconfig
View file @ ab8085c1
......@@ -668,7 +668,6 @@ CONFIG_CRYPTO_USER=m
# CONFIG_CRYPTO_MANAGER_DISABLE_TESTS is not set
CONFIG_CRYPTO_PCRYPT=m
CONFIG_CRYPTO_CRYPTD=m
CONFIG_CRYPTO_MCRYPTD=m
CONFIG_CRYPTO_TEST=m
CONFIG_CRYPTO_CHACHA20POLY1305=m
CONFIG_CRYPTO_LRW=m
......
arch/s390/configs/performance_defconfig
View file @ ab8085c1
......@@ -610,7 +610,6 @@ CONFIG_CRYPTO_USER=m
# CONFIG_CRYPTO_MANAGER_DISABLE_TESTS is not set
CONFIG_CRYPTO_PCRYPT=m
CONFIG_CRYPTO_CRYPTD=m
CONFIG_CRYPTO_MCRYPTD=m
CONFIG_CRYPTO_TEST=m
CONFIG_CRYPTO_CHACHA20POLY1305=m
CONFIG_CRYPTO_LRW=m
......
arch/x86/crypto/Makefile
View file @ ab8085c1
......@@ -60,9 +60,6 @@ endif
ifeq ($(avx2_supported),yes)
obj-$(CONFIG_CRYPTO_CAMELLIA_AESNI_AVX2_X86_64) += camellia-aesni-avx2.o
obj-$(CONFIG_CRYPTO_SERPENT_AVX2_X86_64) += serpent-avx2.o
obj-$(CONFIG_CRYPTO_SHA1_MB) += sha1-mb/
obj-$(CONFIG_CRYPTO_SHA256_MB) += sha256-mb/
obj-$(CONFIG_CRYPTO_SHA512_MB) += sha512-mb/
obj-$(CONFIG_CRYPTO_MORUS1280_AVX2) += morus1280-avx2.o
endif
......
arch/x86/crypto/sha1-mb/Makefile deleted 100644 → 0
View file @ 820684cc
# SPDX-License-Identifier: GPL-2.0
#
# Arch-specific CryptoAPI modules.
#
OBJECT_FILES_NON_STANDARD := y
avx2_supported := $(call as-instr,vpgatherdd %ymm0$(comma)(%eax$(comma)%ymm1\
$(comma)4)$(comma)%ymm2,yes,no)
ifeq ($(avx2_supported),yes)
obj-$(CONFIG_CRYPTO_SHA1_MB) += sha1-mb.o
sha1-mb-y := sha1_mb.o sha1_mb_mgr_flush_avx2.o \
sha1_mb_mgr_init_avx2.o sha1_mb_mgr_submit_avx2.o sha1_x8_avx2.o
endif
arch/x86/crypto/sha1-mb/sha1_mb.c deleted 100644 → 0
View file @ 820684cc
/*
* Multi buffer SHA1 algorithm Glue Code
*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2014 Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* 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.
*
* Contact Information:
* Tim Chen <tim.c.chen@linux.intel.com>
*
* BSD LICENSE
*
* Copyright(c) 2014 Intel Corporation.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <crypto/internal/hash.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/mm.h>
#include <linux/cryptohash.h>
#include <linux/types.h>
#include <linux/list.h>
#include <crypto/scatterwalk.h>
#include <crypto/sha.h>
#include <crypto/mcryptd.h>
#include <crypto/crypto_wq.h>
#include <asm/byteorder.h>
#include <linux/hardirq.h>
#include <asm/fpu/api.h>
#include "sha1_mb_ctx.h"
#define FLUSH_INTERVAL 1000 /* in usec */
static struct mcryptd_alg_state sha1_mb_alg_state;
struct sha1_mb_ctx {
struct mcryptd_ahash *mcryptd_tfm;
};
static inline struct mcryptd_hash_request_ctx
*cast_hash_to_mcryptd_ctx(struct sha1_hash_ctx *hash_ctx)
{
struct ahash_request *areq;
areq = container_of((void *) hash_ctx, struct ahash_request, __ctx);
return container_of(areq, struct mcryptd_hash_request_ctx, areq);
}
static inline struct ahash_request
*cast_mcryptd_ctx_to_req(struct mcryptd_hash_request_ctx *ctx)
{
return container_of((void *) ctx, struct ahash_request, __ctx);
}
static void req_ctx_init(struct mcryptd_hash_request_ctx *rctx,
struct ahash_request *areq)
{
rctx->flag = HASH_UPDATE;
}
static asmlinkage void (*sha1_job_mgr_init)(struct sha1_mb_mgr *state);
static asmlinkage struct job_sha1* (*sha1_job_mgr_submit)
(struct sha1_mb_mgr *state, struct job_sha1 *job);
static asmlinkage struct job_sha1* (*sha1_job_mgr_flush)
(struct sha1_mb_mgr *state);
static asmlinkage struct job_sha1* (*sha1_job_mgr_get_comp_job)
(struct sha1_mb_mgr *state);
static inline uint32_t sha1_pad(uint8_t padblock[SHA1_BLOCK_SIZE * 2],
uint64_t total_len)
{
uint32_t i = total_len & (SHA1_BLOCK_SIZE - 1);
memset(&padblock[i], 0, SHA1_BLOCK_SIZE);
padblock[i] = 0x80;
i += ((SHA1_BLOCK_SIZE - 1) &
(0 - (total_len + SHA1_PADLENGTHFIELD_SIZE + 1)))
+ 1 + SHA1_PADLENGTHFIELD_SIZE;
#if SHA1_PADLENGTHFIELD_SIZE == 16
*((uint64_t *) &padblock[i - 16]) = 0;
#endif
*((uint64_t *) &padblock[i - 8]) = cpu_to_be64(total_len << 3);
/* Number of extra blocks to hash */
return i >> SHA1_LOG2_BLOCK_SIZE;
}
static struct sha1_hash_ctx *sha1_ctx_mgr_resubmit(struct sha1_ctx_mgr *mgr,
struct sha1_hash_ctx *ctx)
{
while (ctx) {
if (ctx->status & HASH_CTX_STS_COMPLETE) {
/* Clear PROCESSING bit */
ctx->status = HASH_CTX_STS_COMPLETE;
return ctx;
}
/*
* If the extra blocks are empty, begin hashing what remains
* in the user's buffer.
*/
if (ctx->partial_block_buffer_length == 0 &&
ctx->incoming_buffer_length) {
const void *buffer = ctx->incoming_buffer;
uint32_t len = ctx->incoming_buffer_length;
uint32_t copy_len;
/*
* Only entire blocks can be hashed.
* Copy remainder to extra blocks buffer.
*/
copy_len = len & (SHA1_BLOCK_SIZE-1);
if (copy_len) {
len -= copy_len;
memcpy(ctx->partial_block_buffer,
((const char *) buffer + len),
copy_len);
ctx->partial_block_buffer_length = copy_len;
}
ctx->incoming_buffer_length = 0;
/* len should be a multiple of the block size now */
assert((len % SHA1_BLOCK_SIZE) == 0);
/* Set len to the number of blocks to be hashed */
len >>= SHA1_LOG2_BLOCK_SIZE;
if (len) {
ctx->job.buffer = (uint8_t *) buffer;
ctx->job.len = len;
ctx = (struct sha1_hash_ctx *)sha1_job_mgr_submit(&mgr->mgr,
&ctx->job);
continue;
}
}
/*
* If the extra blocks are not empty, then we are
* either on the last block(s) or we need more
* user input before continuing.
*/
if (ctx->status & HASH_CTX_STS_LAST) {
uint8_t *buf = ctx->partial_block_buffer;
uint32_t n_extra_blocks =
sha1_pad(buf, ctx->total_length);
ctx->status = (HASH_CTX_STS_PROCESSING |
HASH_CTX_STS_COMPLETE);
ctx->job.buffer = buf;
ctx->job.len = (uint32_t) n_extra_blocks;
ctx = (struct sha1_hash_ctx *)
sha1_job_mgr_submit(&mgr->mgr, &ctx->job);
continue;
}
ctx->status = HASH_CTX_STS_IDLE;
return ctx;
}
return NULL;
}
static struct sha1_hash_ctx
*sha1_ctx_mgr_get_comp_ctx(struct sha1_ctx_mgr *mgr)
{
/*
* If get_comp_job returns NULL, there are no jobs complete.
* If get_comp_job returns a job, verify that it is safe to return to
* the user.
* If it is not ready, resubmit the job to finish processing.
* If sha1_ctx_mgr_resubmit returned a job, it is ready to be returned.
* Otherwise, all jobs currently being managed by the hash_ctx_mgr
* still need processing.
*/
struct sha1_hash_ctx *ctx;
ctx = (struct sha1_hash_ctx *) sha1_job_mgr_get_comp_job(&mgr->mgr);
return sha1_ctx_mgr_resubmit(mgr, ctx);
}
static void sha1_ctx_mgr_init(struct sha1_ctx_mgr *mgr)
{
sha1_job_mgr_init(&mgr->mgr);
}
static struct sha1_hash_ctx *sha1_ctx_mgr_submit(struct sha1_ctx_mgr *mgr,
struct sha1_hash_ctx *ctx,
const void *buffer,
uint32_t len,
int flags)
{
if (flags & ~(HASH_UPDATE | HASH_LAST)) {
/* User should not pass anything other than UPDATE or LAST */
ctx->error = HASH_CTX_ERROR_INVALID_FLAGS;
return ctx;
}
if (ctx->status & HASH_CTX_STS_PROCESSING) {
/* Cannot submit to a currently processing job. */
ctx->error = HASH_CTX_ERROR_ALREADY_PROCESSING;
return ctx;
}
if (ctx->status & HASH_CTX_STS_COMPLETE) {
/* Cannot update a finished job. */
ctx->error = HASH_CTX_ERROR_ALREADY_COMPLETED;
return ctx;
}
/*
* If we made it here, there were no errors during this call to
* submit
*/
ctx->error = HASH_CTX_ERROR_NONE;
/* Store buffer ptr info from user */
ctx->incoming_buffer = buffer;
ctx->incoming_buffer_length = len;
/*
* Store the user's request flags and mark this ctx as currently
* being processed.
*/
ctx->status = (flags & HASH_LAST) ?
(HASH_CTX_STS_PROCESSING | HASH_CTX_STS_LAST) :
HASH_CTX_STS_PROCESSING;
/* Advance byte counter */
ctx->total_length += len;
/*
* If there is anything currently buffered in the extra blocks,
* append to it until it contains a whole block.
* Or if the user's buffer contains less than a whole block,
* append as much as possible to the extra block.
*/
if (ctx->partial_block_buffer_length || len < SHA1_BLOCK_SIZE) {
/*
* Compute how many bytes to copy from user buffer into
* extra block
*/
uint32_t copy_len = SHA1_BLOCK_SIZE -
ctx->partial_block_buffer_length;
if (len < copy_len)
copy_len = len;
if (copy_len) {
/* Copy and update relevant pointers and counters */
memcpy(&ctx->partial_block_buffer[ctx->partial_block_buffer_length],
buffer, copy_len);
ctx->partial_block_buffer_length += copy_len;
ctx->incoming_buffer = (const void *)
((const char *)buffer + copy_len);
ctx->incoming_buffer_length = len - copy_len;
}
/*
* The extra block should never contain more than 1 block
* here
*/
assert(ctx->partial_block_buffer_length <= SHA1_BLOCK_SIZE);
/*
* If the extra block buffer contains exactly 1 block, it can
* be hashed.
*/
if (ctx->partial_block_buffer_length >= SHA1_BLOCK_SIZE) {
ctx->partial_block_buffer_length = 0;
ctx->job.buffer = ctx->partial_block_buffer;
ctx->job.len = 1;
ctx = (struct sha1_hash_ctx *)
sha1_job_mgr_submit(&mgr->mgr, &ctx->job);
}
}
return sha1_ctx_mgr_resubmit(mgr, ctx);
}
static struct sha1_hash_ctx *sha1_ctx_mgr_flush(struct sha1_ctx_mgr *mgr)
{
struct sha1_hash_ctx *ctx;
while (1) {
ctx = (struct sha1_hash_ctx *) sha1_job_mgr_flush(&mgr->mgr);
/* If flush returned 0, there are no more jobs in flight. */
if (!ctx)
return NULL;
/*
* If flush returned a job, resubmit the job to finish
* processing.
*/
ctx = sha1_ctx_mgr_resubmit(mgr, ctx);
/*
* If sha1_ctx_mgr_resubmit returned a job, it is ready to be
* returned. Otherwise, all jobs currently being managed by the
* sha1_ctx_mgr still need processing. Loop.
*/
if (ctx)
return ctx;
}
}
static int sha1_mb_init(struct ahash_request *areq)
{
struct sha1_hash_ctx *sctx = ahash_request_ctx(areq);
hash_ctx_init(sctx);
sctx->job.result_digest[0] = SHA1_H0;
sctx->job.result_digest[1] = SHA1_H1;
sctx->job.result_digest[2] = SHA1_H2;
sctx->job.result_digest[3] = SHA1_H3;
sctx->job.result_digest[4] = SHA1_H4;
sctx->total_length = 0;
sctx->partial_block_buffer_length = 0;
sctx->status = HASH_CTX_STS_IDLE;
return 0;
}
static int sha1_mb_set_results(struct mcryptd_hash_request_ctx *rctx)
{
int i;
struct sha1_hash_ctx *sctx = ahash_request_ctx(&rctx->areq);
__be32 *dst = (__be32 *) rctx->out;
for (i = 0; i < 5; ++i)
dst[i] = cpu_to_be32(sctx->job.result_digest[i]);
return 0;
}
static int sha_finish_walk(struct mcryptd_hash_request_ctx **ret_rctx,
struct mcryptd_alg_cstate *cstate, bool flush)
{
int flag = HASH_UPDATE;
int nbytes, err = 0;
struct mcryptd_hash_request_ctx *rctx = *ret_rctx;
struct sha1_hash_ctx *sha_ctx;
/* more work ? */
while (!(rctx->flag & HASH_DONE)) {
nbytes = crypto_ahash_walk_done(&rctx->walk, 0);
if (nbytes < 0) {
err = nbytes;
goto out;
}
/* check if the walk is done */
if (crypto_ahash_walk_last(&rctx->walk)) {
rctx->flag |= HASH_DONE;
if (rctx->flag & HASH_FINAL)
flag |= HASH_LAST;
}
sha_ctx = (struct sha1_hash_ctx *)
ahash_request_ctx(&rctx->areq);
kernel_fpu_begin();
sha_ctx = sha1_ctx_mgr_submit(cstate->mgr, sha_ctx,
rctx->walk.data, nbytes, flag);
if (!sha_ctx) {
if (flush)
sha_ctx = sha1_ctx_mgr_flush(cstate->mgr);
}
kernel_fpu_end();
if (sha_ctx)
rctx = cast_hash_to_mcryptd_ctx(sha_ctx);
else {
rctx = NULL;
goto out;
}
}
/* copy the results */
if (rctx->flag & HASH_FINAL)
sha1_mb_set_results(rctx);
out:
*ret_rctx = rctx;
return err;
}
static int sha_complete_job(struct mcryptd_hash_request_ctx *rctx,
struct mcryptd_alg_cstate *cstate,
int err)
{
struct ahash_request *req = cast_mcryptd_ctx_to_req(rctx);
struct sha1_hash_ctx *sha_ctx;
struct mcryptd_hash_request_ctx *req_ctx;
int ret;
/* remove from work list */
spin_lock(&cstate->work_lock);
list_del(&rctx->waiter);
spin_unlock(&cstate->work_lock);
if (irqs_disabled())
rctx->complete(&req->base, err);
else {
local_bh_disable();
rctx->complete(&req->base, err);
local_bh_enable();
}
/* check to see if there are other jobs that are done */
sha_ctx = sha1_ctx_mgr_get_comp_ctx(cstate->mgr);
while (sha_ctx) {
req_ctx = cast_hash_to_mcryptd_ctx(sha_ctx);
ret = sha_finish_walk(&req_ctx, cstate, false);
if (req_ctx) {
spin_lock(&cstate->work_lock);
list_del(&req_ctx->waiter);
spin_unlock(&cstate->work_lock);
req = cast_mcryptd_ctx_to_req(req_ctx);
if (irqs_disabled())
req_ctx->complete(&req->base, ret);
else {
local_bh_disable();
req_ctx->complete(&req->base, ret);
local_bh_enable();
}
}
sha_ctx = sha1_ctx_mgr_get_comp_ctx(cstate->mgr);
}
return 0;
}
static void sha1_mb_add_list(struct mcryptd_hash_request_ctx *rctx,
struct mcryptd_alg_cstate *cstate)
{
unsigned long next_flush;
unsigned long delay = usecs_to_jiffies(FLUSH_INTERVAL);
/* initialize tag */
rctx->tag.arrival = jiffies; /* tag the arrival time */
rctx->tag.seq_num = cstate->next_seq_num++;
next_flush = rctx->tag.arrival + delay;
rctx->tag.expire = next_flush;
spin_lock(&cstate->work_lock);
list_add_tail(&rctx->waiter, &cstate->work_list);
spin_unlock(&cstate->work_lock);
mcryptd_arm_flusher(cstate, delay);
}
static int sha1_mb_update(struct ahash_request *areq)
{
struct mcryptd_hash_request_ctx *rctx =
container_of(areq, struct mcryptd_hash_request_ctx, areq);
struct mcryptd_alg_cstate *cstate =
this_cpu_ptr(sha1_mb_alg_state.alg_cstate);
struct ahash_request *req = cast_mcryptd_ctx_to_req(rctx);
struct sha1_hash_ctx *sha_ctx;
int ret = 0, nbytes;
/* sanity check */
if (rctx->tag.cpu != smp_processor_id()) {
pr_err("mcryptd error: cpu clash\n");
goto done;
}
/* need to init context */
req_ctx_init(rctx, areq);
nbytes = crypto_ahash_walk_first(req, &rctx->walk);
if (nbytes < 0) {
ret = nbytes;
goto done;
}
if (crypto_ahash_walk_last(&rctx->walk))
rctx->flag |= HASH_DONE;
/* submit */
sha_ctx = (struct sha1_hash_ctx *) ahash_request_ctx(areq);
sha1_mb_add_list(rctx, cstate);
kernel_fpu_begin();
sha_ctx = sha1_ctx_mgr_submit(cstate->mgr, sha_ctx, rctx->walk.data,
nbytes, HASH_UPDATE);
kernel_fpu_end();
/* check if anything is returned */
if (!sha_ctx)
return -EINPROGRESS;
if (sha_ctx->error) {
ret = sha_ctx->error;
rctx = cast_hash_to_mcryptd_ctx(sha_ctx);
goto done;
}
rctx = cast_hash_to_mcryptd_ctx(sha_ctx);
ret = sha_finish_walk(&rctx, cstate, false);
if (!rctx)
return -EINPROGRESS;
done:
sha_complete_job(rctx, cstate, ret);
return ret;
}
static int sha1_mb_finup(struct ahash_request *areq)
{
struct mcryptd_hash_request_ctx *rctx =
container_of(areq, struct mcryptd_hash_request_ctx, areq);
struct mcryptd_alg_cstate *cstate =
this_cpu_ptr(sha1_mb_alg_state.alg_cstate);
struct ahash_request *req = cast_mcryptd_ctx_to_req(rctx);
struct sha1_hash_ctx *sha_ctx;
int ret = 0, flag = HASH_UPDATE, nbytes;
/* sanity check */
if (rctx->tag.cpu != smp_processor_id()) {
pr_err("mcryptd error: cpu clash\n");
goto done;
}
/* need to init context */
req_ctx_init(rctx, areq);
nbytes = crypto_ahash_walk_first(req, &rctx->walk);
if (nbytes < 0) {
ret = nbytes;
goto done;
}
if (crypto_ahash_walk_last(&rctx->walk)) {
rctx->flag |= HASH_DONE;
flag = HASH_LAST;
}
/* submit */
rctx->flag |= HASH_FINAL;
sha_ctx = (struct sha1_hash_ctx *) ahash_request_ctx(areq);
sha1_mb_add_list(rctx, cstate);
kernel_fpu_begin();
sha_ctx = sha1_ctx_mgr_submit(cstate->mgr, sha_ctx, rctx->walk.data,
nbytes, flag);
kernel_fpu_end();
/* check if anything is returned */
if (!sha_ctx)
return -EINPROGRESS;
if (sha_ctx->error) {
ret = sha_ctx->error;
goto done;
}
rctx = cast_hash_to_mcryptd_ctx(sha_ctx);
ret = sha_finish_walk(&rctx, cstate, false);
if (!rctx)
return -EINPROGRESS;
done:
sha_complete_job(rctx, cstate, ret);
return ret;
}
static int sha1_mb_final(struct ahash_request *areq)
{
struct mcryptd_hash_request_ctx *rctx =
container_of(areq, struct mcryptd_hash_request_ctx, areq);
struct mcryptd_alg_cstate *cstate =
this_cpu_ptr(sha1_mb_alg_state.alg_cstate);
struct sha1_hash_ctx *sha_ctx;
int ret = 0;
u8 data;
/* sanity check */
if (rctx->tag.cpu != smp_processor_id()) {
pr_err("mcryptd error: cpu clash\n");
goto done;
}
/* need to init context */
req_ctx_init(rctx, areq);
rctx->flag |= HASH_DONE | HASH_FINAL;
sha_ctx = (struct sha1_hash_ctx *) ahash_request_ctx(areq);
/* flag HASH_FINAL and 0 data size */
sha1_mb_add_list(rctx, cstate);
kernel_fpu_begin();
sha_ctx = sha1_ctx_mgr_submit(cstate->mgr, sha_ctx, &data, 0,
HASH_LAST);
kernel_fpu_end();
/* check if anything is returned */
if (!sha_ctx)
return -EINPROGRESS;
if (sha_ctx->error) {
ret = sha_ctx->error;
rctx = cast_hash_to_mcryptd_ctx(sha_ctx);
goto done;
}
rctx = cast_hash_to_mcryptd_ctx(sha_ctx);
ret = sha_finish_walk(&rctx, cstate, false);
if (!rctx)
return -EINPROGRESS;
done:
sha_complete_job(rctx, cstate, ret);
return ret;
}
static int sha1_mb_export(struct ahash_request *areq, void *out)
{
struct sha1_hash_ctx *sctx = ahash_request_ctx(areq);
memcpy(out, sctx, sizeof(*sctx));
return 0;
}
static int sha1_mb_import(struct ahash_request *areq, const void *in)
{
struct sha1_hash_ctx *sctx = ahash_request_ctx(areq);
memcpy(sctx, in, sizeof(*sctx));
return 0;
}
static int sha1_mb_async_init_tfm(struct crypto_tfm *tfm)
{
struct mcryptd_ahash *mcryptd_tfm;
struct sha1_mb_ctx *ctx = crypto_tfm_ctx(tfm);
struct mcryptd_hash_ctx *mctx;
mcryptd_tfm = mcryptd_alloc_ahash("__intel_sha1-mb",
CRYPTO_ALG_INTERNAL,
CRYPTO_ALG_INTERNAL);
if (IS_ERR(mcryptd_tfm))
return PTR_ERR(mcryptd_tfm);
mctx = crypto_ahash_ctx(&mcryptd_tfm->base);
mctx->alg_state = &sha1_mb_alg_state;
ctx->mcryptd_tfm = mcryptd_tfm;
crypto_ahash_set_reqsize(__crypto_ahash_cast(tfm),
sizeof(struct ahash_request) +
crypto_ahash_reqsize(&mcryptd_tfm->base));
return 0;
}
static void sha1_mb_async_exit_tfm(struct crypto_tfm *tfm)
{
struct sha1_mb_ctx *ctx = crypto_tfm_ctx(tfm);
mcryptd_free_ahash(ctx->mcryptd_tfm);
}
static int sha1_mb_areq_init_tfm(struct crypto_tfm *tfm)
{
crypto_ahash_set_reqsize(__crypto_ahash_cast(tfm),
sizeof(struct ahash_request) +
sizeof(struct sha1_hash_ctx));
return 0;
}
static void sha1_mb_areq_exit_tfm(struct crypto_tfm *tfm)
{
struct sha1_mb_ctx *ctx = crypto_tfm_ctx(tfm);
mcryptd_free_ahash(ctx->mcryptd_tfm);
}
static struct ahash_alg sha1_mb_areq_alg = {
.init = sha1_mb_init,
.update = sha1_mb_update,
.final = sha1_mb_final,
.finup = sha1_mb_finup,
.export = sha1_mb_export,
.import = sha1_mb_import,
.halg = {
.digestsize = SHA1_DIGEST_SIZE,
.statesize = sizeof(struct sha1_hash_ctx),
.base = {
.cra_name = "__sha1-mb",
.cra_driver_name = "__intel_sha1-mb",
.cra_priority = 100,
/*
* use ASYNC flag as some buffers in multi-buffer
* algo may not have completed before hashing thread
* sleep
*/
.cra_flags = CRYPTO_ALG_ASYNC |
CRYPTO_ALG_INTERNAL,
.cra_blocksize = SHA1_BLOCK_SIZE,
.cra_module = THIS_MODULE,
.cra_list = LIST_HEAD_INIT
(sha1_mb_areq_alg.halg.base.cra_list),
.cra_init = sha1_mb_areq_init_tfm,
.cra_exit = sha1_mb_areq_exit_tfm,
.cra_ctxsize = sizeof(struct sha1_hash_ctx),
}
}
};
static int sha1_mb_async_init(struct ahash_request *req)
{
struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
struct sha1_mb_ctx *ctx = crypto_ahash_ctx(tfm);
struct ahash_request *mcryptd_req = ahash_request_ctx(req);
struct mcryptd_ahash *mcryptd_tfm = ctx->mcryptd_tfm;
memcpy(mcryptd_req, req, sizeof(*req));
ahash_request_set_tfm(mcryptd_req, &mcryptd_tfm->base);
return crypto_ahash_init(mcryptd_req);
}
static int sha1_mb_async_update(struct ahash_request *req)
{
struct ahash_request *mcryptd_req = ahash_request_ctx(req);
struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
struct sha1_mb_ctx *ctx = crypto_ahash_ctx(tfm);
struct mcryptd_ahash *mcryptd_tfm = ctx->mcryptd_tfm;
memcpy(mcryptd_req, req, sizeof(*req));
ahash_request_set_tfm(mcryptd_req, &mcryptd_tfm->base);
return crypto_ahash_update(mcryptd_req);
}
static int sha1_mb_async_finup(struct ahash_request *req)
{
struct ahash_request *mcryptd_req = ahash_request_ctx(req);
struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
struct sha1_mb_ctx *ctx = crypto_ahash_ctx(tfm);
struct mcryptd_ahash *mcryptd_tfm = ctx->mcryptd_tfm;
memcpy(mcryptd_req, req, sizeof(*req));
ahash_request_set_tfm(mcryptd_req, &mcryptd_tfm->base);
return crypto_ahash_finup(mcryptd_req);
}
static int sha1_mb_async_final(struct ahash_request *req)
{
struct ahash_request *mcryptd_req = ahash_request_ctx(req);
struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
struct sha1_mb_ctx *ctx = crypto_ahash_ctx(tfm);
struct mcryptd_ahash *mcryptd_tfm = ctx->mcryptd_tfm;
memcpy(mcryptd_req, req, sizeof(*req));
ahash_request_set_tfm(mcryptd_req, &mcryptd_tfm->base);
return crypto_ahash_final(mcryptd_req);
}
static int sha1_mb_async_digest(struct ahash_request *req)
{
struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
struct sha1_mb_ctx *ctx = crypto_ahash_ctx(tfm);
struct ahash_request *mcryptd_req = ahash_request_ctx(req);
struct mcryptd_ahash *mcryptd_tfm = ctx->mcryptd_tfm;
memcpy(mcryptd_req, req, sizeof(*req));
ahash_request_set_tfm(mcryptd_req, &mcryptd_tfm->base);
return crypto_ahash_digest(mcryptd_req);
}
static int sha1_mb_async_export(struct ahash_request *req, void *out)
{
struct ahash_request *mcryptd_req = ahash_request_ctx(req);
struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
struct sha1_mb_ctx *ctx = crypto_ahash_ctx(tfm);
struct mcryptd_ahash *mcryptd_tfm = ctx->mcryptd_tfm;
memcpy(mcryptd_req, req, sizeof(*req));
ahash_request_set_tfm(mcryptd_req, &mcryptd_tfm->base);
return crypto_ahash_export(mcryptd_req, out);
}
static int sha1_mb_async_import(struct ahash_request *req, const void *in)
{
struct ahash_request *mcryptd_req = ahash_request_ctx(req);
struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
struct sha1_mb_ctx *ctx = crypto_ahash_ctx(tfm);
struct mcryptd_ahash *mcryptd_tfm = ctx->mcryptd_tfm;
struct crypto_ahash *child = mcryptd_ahash_child(mcryptd_tfm);
struct mcryptd_hash_request_ctx *rctx;
struct ahash_request *areq;
memcpy(mcryptd_req, req, sizeof(*req));
ahash_request_set_tfm(mcryptd_req, &mcryptd_tfm->base);
rctx = ahash_request_ctx(mcryptd_req);
areq = &rctx->areq;
ahash_request_set_tfm(areq, child);
ahash_request_set_callback(areq, CRYPTO_TFM_REQ_MAY_SLEEP,
rctx->complete, req);
return crypto_ahash_import(mcryptd_req, in);
}
static struct ahash_alg sha1_mb_async_alg = {
.init = sha1_mb_async_init,
.update = sha1_mb_async_update,
.final = sha1_mb_async_final,
.finup = sha1_mb_async_finup,
.digest = sha1_mb_async_digest,
.export = sha1_mb_async_export,
.import = sha1_mb_async_import,
.halg = {
.digestsize = SHA1_DIGEST_SIZE,
.statesize = sizeof(struct sha1_hash_ctx),
.base = {
.cra_name = "sha1",
.cra_driver_name = "sha1_mb",
/*
* Low priority, since with few concurrent hash requests
* this is extremely slow due to the flush delay. Users
* whose workloads would benefit from this can request
* it explicitly by driver name, or can increase its
* priority at runtime using NETLINK_CRYPTO.
*/
.cra_priority = 50,
.cra_flags = CRYPTO_ALG_ASYNC,
.cra_blocksize = SHA1_BLOCK_SIZE,
.cra_module = THIS_MODULE,
.cra_list = LIST_HEAD_INIT(sha1_mb_async_alg.halg.base.cra_list),
.cra_init = sha1_mb_async_init_tfm,
.cra_exit = sha1_mb_async_exit_tfm,
.cra_ctxsize = sizeof(struct sha1_mb_ctx),
.cra_alignmask = 0,
},
},
};
static unsigned long sha1_mb_flusher(struct mcryptd_alg_cstate *cstate)
{
struct mcryptd_hash_request_ctx *rctx;
unsigned long cur_time;
unsigned long next_flush = 0;
struct sha1_hash_ctx *sha_ctx;
cur_time = jiffies;
while (!list_empty(&cstate->work_list)) {
rctx = list_entry(cstate->work_list.next,
struct mcryptd_hash_request_ctx, waiter);
if (time_before(cur_time, rctx->tag.expire))
break;
kernel_fpu_begin();
sha_ctx = (struct sha1_hash_ctx *)
sha1_ctx_mgr_flush(cstate->mgr);
kernel_fpu_end();
if (!sha_ctx) {
pr_err("sha1_mb error: nothing got flushed for non-empty list\n");
break;
}
rctx = cast_hash_to_mcryptd_ctx(sha_ctx);
sha_finish_walk(&rctx, cstate, true);
sha_complete_job(rctx, cstate, 0);
}
if (!list_empty(&cstate->work_list)) {
rctx = list_entry(cstate->work_list.next,
struct mcryptd_hash_request_ctx, waiter);
/* get the hash context and then flush time */
next_flush = rctx->tag.expire;
mcryptd_arm_flusher(cstate, get_delay(next_flush));
}
return next_flush;
}
static int __init sha1_mb_mod_init(void)
{
int cpu;
int err;
struct mcryptd_alg_cstate *cpu_state;
/* check for dependent cpu features */
if (!boot_cpu_has(X86_FEATURE_AVX2) ||
!boot_cpu_has(X86_FEATURE_BMI2))
return -ENODEV;
/* initialize multibuffer structures */
sha1_mb_alg_state.alg_cstate = alloc_percpu(struct mcryptd_alg_cstate);
sha1_job_mgr_init = sha1_mb_mgr_init_avx2;
sha1_job_mgr_submit = sha1_mb_mgr_submit_avx2;
sha1_job_mgr_flush = sha1_mb_mgr_flush_avx2;
sha1_job_mgr_get_comp_job = sha1_mb_mgr_get_comp_job_avx2;
if (!sha1_mb_alg_state.alg_cstate)
return -ENOMEM;
for_each_possible_cpu(cpu) {
cpu_state = per_cpu_ptr(sha1_mb_alg_state.alg_cstate, cpu);
cpu_state->next_flush = 0;
cpu_state->next_seq_num = 0;
cpu_state->flusher_engaged = false;
INIT_DELAYED_WORK(&cpu_state->flush, mcryptd_flusher);
cpu_state->cpu = cpu;
cpu_state->alg_state = &sha1_mb_alg_state;
cpu_state->mgr = kzalloc(sizeof(struct sha1_ctx_mgr),
GFP_KERNEL);
if (!cpu_state->mgr)
goto err2;
sha1_ctx_mgr_init(cpu_state->mgr);
INIT_LIST_HEAD(&cpu_state->work_list);
spin_lock_init(&cpu_state->work_lock);
}
sha1_mb_alg_state.flusher = &sha1_mb_flusher;
err = crypto_register_ahash(&sha1_mb_areq_alg);
if (err)
goto err2;
err = crypto_register_ahash(&sha1_mb_async_alg);
if (err)
goto err1;
return 0;
err1:
crypto_unregister_ahash(&sha1_mb_areq_alg);
err2:
for_each_possible_cpu(cpu) {
cpu_state = per_cpu_ptr(sha1_mb_alg_state.alg_cstate, cpu);
kfree(cpu_state->mgr);
}
free_percpu(sha1_mb_alg_state.alg_cstate);
return -ENODEV;
}
static void __exit sha1_mb_mod_fini(void)
{
int cpu;
struct mcryptd_alg_cstate *cpu_state;
crypto_unregister_ahash(&sha1_mb_async_alg);
crypto_unregister_ahash(&sha1_mb_areq_alg);
for_each_possible_cpu(cpu) {
cpu_state = per_cpu_ptr(sha1_mb_alg_state.alg_cstate, cpu);
kfree(cpu_state->mgr);
}
free_percpu(sha1_mb_alg_state.alg_cstate);
}
module_init(sha1_mb_mod_init);
module_exit(sha1_mb_mod_fini);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("SHA1 Secure Hash Algorithm, multi buffer accelerated");
MODULE_ALIAS_CRYPTO("sha1");
arch/x86/crypto/sha1-mb/sha1_mb_ctx.h deleted 100644 → 0
View file @ 820684cc
/*
* Header file for multi buffer SHA context
*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2014 Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* 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.
*
* Contact Information:
* Tim Chen <tim.c.chen@linux.intel.com>
*
* BSD LICENSE
*
* Copyright(c) 2014 Intel Corporation.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _SHA_MB_CTX_INTERNAL_H
#define _SHA_MB_CTX_INTERNAL_H
#include "sha1_mb_mgr.h"
#define HASH_UPDATE 0x00
#define HASH_LAST 0x01
#define HASH_DONE 0x02
#define HASH_FINAL 0x04
#define HASH_CTX_STS_IDLE 0x00
#define HASH_CTX_STS_PROCESSING 0x01
#define HASH_CTX_STS_LAST 0x02
#define HASH_CTX_STS_COMPLETE 0x04
enum hash_ctx_error {
HASH_CTX_ERROR_NONE = 0,
HASH_CTX_ERROR_INVALID_FLAGS = -1,
HASH_CTX_ERROR_ALREADY_PROCESSING = -2,
HASH_CTX_ERROR_ALREADY_COMPLETED = -3,
#ifdef HASH_CTX_DEBUG
HASH_CTX_ERROR_DEBUG_DIGEST_MISMATCH = -4,
#endif
};
#define hash_ctx_user_data(ctx) ((ctx)->user_data)
#define hash_ctx_digest(ctx) ((ctx)->job.result_digest)
#define hash_ctx_processing(ctx) ((ctx)->status & HASH_CTX_STS_PROCESSING)
#define hash_ctx_complete(ctx) ((ctx)->status == HASH_CTX_STS_COMPLETE)
#define hash_ctx_status(ctx) ((ctx)->status)
#define hash_ctx_error(ctx) ((ctx)->error)
#define hash_ctx_init(ctx) \
do { \
(ctx)->error = HASH_CTX_ERROR_NONE; \
(ctx)->status = HASH_CTX_STS_COMPLETE; \
} while (0)
/* Hash Constants and Typedefs */
#define SHA1_DIGEST_LENGTH 5
#define SHA1_LOG2_BLOCK_SIZE 6
#define SHA1_PADLENGTHFIELD_SIZE 8
#ifdef SHA_MB_DEBUG
#define assert(expr) \
do { \
if (unlikely(!(expr))) { \
printk(KERN_ERR "Assertion failed! %s,%s,%s,line=%d\n", \
#expr, __FILE__, __func__, __LINE__); \
} \
} while (0)
#else
#define assert(expr) do {} while (0)
#endif
struct sha1_ctx_mgr {
struct sha1_mb_mgr mgr;
};
/* typedef struct sha1_ctx_mgr sha1_ctx_mgr; */
struct sha1_hash_ctx {
/* Must be at struct offset 0 */
struct job_sha1 job;
/* status flag */
int status;
/* error flag */
int error;
uint64_t total_length;
const void *incoming_buffer;
uint32_t incoming_buffer_length;
uint8_t partial_block_buffer[SHA1_BLOCK_SIZE * 2];
uint32_t partial_block_buffer_length;
void *user_data;
};
#endif
arch/x86/crypto/sha1-mb/sha1_mb_mgr.h deleted 100644 → 0
View file @ 820684cc
/*
* Header file for multi buffer SHA1 algorithm manager
*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2014 Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* 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.
*
* Contact Information:
* James Guilford <james.guilford@intel.com>
* Tim Chen <tim.c.chen@linux.intel.com>
*
* BSD LICENSE
*
* Copyright(c) 2014 Intel Corporation.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __SHA_MB_MGR_H
#define __SHA_MB_MGR_H
#include <linux/types.h>
#define NUM_SHA1_DIGEST_WORDS 5
enum job_sts { STS_UNKNOWN = 0,
STS_BEING_PROCESSED = 1,
STS_COMPLETED = 2,
STS_INTERNAL_ERROR = 3,
STS_ERROR = 4
};
struct job_sha1 {
u8 *buffer;
u32 len;
u32 result_digest[NUM_SHA1_DIGEST_WORDS] __aligned(32);
enum job_sts status;
void *user_data;
};
/* SHA1 out-of-order scheduler */
/* typedef uint32_t sha1_digest_array[5][8]; */
struct sha1_args_x8 {
uint32_t digest[5][8];
uint8_t *data_ptr[8];
};
struct sha1_lane_data {
struct job_sha1 *job_in_lane;
};
struct sha1_mb_mgr {
struct sha1_args_x8 args;
uint32_t lens[8];
/* each byte is index (0...7) of unused lanes */
uint64_t unused_lanes;
/* byte 4 is set to FF as a flag */
struct sha1_lane_data ldata[8];
};
#define SHA1_MB_MGR_NUM_LANES_AVX2 8
void sha1_mb_mgr_init_avx2(struct sha1_mb_mgr *state);
struct job_sha1 *sha1_mb_mgr_submit_avx2(struct sha1_mb_mgr *state,
struct job_sha1 *job);
struct job_sha1 *sha1_mb_mgr_flush_avx2(struct sha1_mb_mgr *state);
struct job_sha1 *sha1_mb_mgr_get_comp_job_avx2(struct sha1_mb_mgr *state);
#endif
arch/x86/crypto/sha1-mb/sha1_mb_mgr_datastruct.S deleted 100644 → 0
View file @ 820684cc
/*
* Header file for multi buffer SHA1 algorithm data structure
*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2014 Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* 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.
*
* Contact Information:
* James Guilford <james.guilford@intel.com>
* Tim Chen <tim.c.chen@linux.intel.com>
*
* BSD LICENSE
*
* Copyright(c) 2014 Intel Corporation.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
# Macros for defining data structures
# Usage example
#START_FIELDS # JOB_AES
### name size align
#FIELD _plaintext, 8, 8 # pointer to plaintext
#FIELD _ciphertext, 8, 8 # pointer to ciphertext
#FIELD _IV, 16, 8 # IV
#FIELD _keys, 8, 8 # pointer to keys
#FIELD _len, 4, 4 # length in bytes
#FIELD _status, 4, 4 # status enumeration
#FIELD _user_data, 8, 8 # pointer to user data
#UNION _union, size1, align1, \
# size2, align2, \
# size3, align3, \
# ...
#END_FIELDS
#%assign _JOB_AES_size _FIELD_OFFSET
#%assign _JOB_AES_align _STRUCT_ALIGN
#########################################################################
# Alternate "struc-like" syntax:
# STRUCT job_aes2
# RES_Q .plaintext, 1
# RES_Q .ciphertext, 1
# RES_DQ .IV, 1
# RES_B .nested, _JOB_AES_SIZE, _JOB_AES_ALIGN
# RES_U .union, size1, align1, \
# size2, align2, \
# ...
# ENDSTRUCT
# # Following only needed if nesting
# %assign job_aes2_size _FIELD_OFFSET
# %assign job_aes2_align _STRUCT_ALIGN
#
# RES_* macros take a name, a count and an optional alignment.
# The count in in terms of the base size of the macro, and the
# default alignment is the base size.
# The macros are:
# Macro Base size
# RES_B 1
# RES_W 2
# RES_D 4
# RES_Q 8
# RES_DQ 16
# RES_Y 32
# RES_Z 64
#
# RES_U defines a union. It's arguments are a name and two or more
# pairs of "size, alignment"
#
# The two assigns are only needed if this structure is being nested
# within another. Even if the assigns are not done, one can still use
# STRUCT_NAME_size as the size of the structure.
#
# Note that for nesting, you still need to assign to STRUCT_NAME_size.
#
# The differences between this and using "struc" directly are that each
# type is implicitly aligned to its natural length (although this can be
# over-ridden with an explicit third parameter), and that the structure
# is padded at the end to its overall alignment.
#
#########################################################################
#ifndef _SHA1_MB_MGR_DATASTRUCT_ASM_
#define _SHA1_MB_MGR_DATASTRUCT_ASM_
## START_FIELDS
.macro START_FIELDS
_FIELD_OFFSET = 0
_STRUCT_ALIGN = 0
.endm
## FIELD name size align
.macro FIELD name size align
_FIELD_OFFSET = (_FIELD_OFFSET + (\align) - 1) & (~ ((\align)-1))
\name = _FIELD_OFFSET
_FIELD_OFFSET = _FIELD_OFFSET + (\size)
.if (\align > _STRUCT_ALIGN)
_STRUCT_ALIGN = \align
.endif
.endm
## END_FIELDS
.macro END_FIELDS
_FIELD_OFFSET = (_FIELD_OFFSET + _STRUCT_ALIGN-1) & (~ (_STRUCT_ALIGN-1))
.endm
########################################################################
.macro STRUCT p1
START_FIELDS
.struc \p1
.endm
.macro ENDSTRUCT
tmp = _FIELD_OFFSET
END_FIELDS
tmp = (_FIELD_OFFSET - %%tmp)
.if (tmp > 0)
.lcomm tmp
.endif
.endstruc
.endm
## RES_int name size align
.macro RES_int p1 p2 p3
name = \p1
size = \p2
align = .\p3
_FIELD_OFFSET = (_FIELD_OFFSET + (align) - 1) & (~ ((align)-1))
.align align
.lcomm name size
_FIELD_OFFSET = _FIELD_OFFSET + (size)
.if (align > _STRUCT_ALIGN)
_STRUCT_ALIGN = align
.endif
.endm
# macro RES_B name, size [, align]
.macro RES_B _name, _size, _align=1
RES_int _name _size _align
.endm
# macro RES_W name, size [, align]
.macro RES_W _name, _size, _align=2
RES_int _name 2*(_size) _align
.endm
# macro RES_D name, size [, align]
.macro RES_D _name, _size, _align=4
RES_int _name 4*(_size) _align
.endm
# macro RES_Q name, size [, align]
.macro RES_Q _name, _size, _align=8
RES_int _name 8*(_size) _align
.endm
# macro RES_DQ name, size [, align]
.macro RES_DQ _name, _size, _align=16
RES_int _name 16*(_size) _align
.endm
# macro RES_Y name, size [, align]
.macro RES_Y _name, _size, _align=32
RES_int _name 32*(_size) _align
.endm
# macro RES_Z name, size [, align]
.macro RES_Z _name, _size, _align=64
RES_int _name 64*(_size) _align
.endm
#endif
########################################################################
#### Define constants
########################################################################
########################################################################
#### Define SHA1 Out Of Order Data Structures
########################################################################
START_FIELDS # LANE_DATA
### name size align
FIELD _job_in_lane, 8, 8 # pointer to job object
END_FIELDS
_LANE_DATA_size = _FIELD_OFFSET
_LANE_DATA_align = _STRUCT_ALIGN
########################################################################
START_FIELDS # SHA1_ARGS_X8
### name size align
FIELD _digest, 4*5*8, 16 # transposed digest
FIELD _data_ptr, 8*8, 8 # array of pointers to data
END_FIELDS
_SHA1_ARGS_X4_size = _FIELD_OFFSET
_SHA1_ARGS_X4_align = _STRUCT_ALIGN
_SHA1_ARGS_X8_size = _FIELD_OFFSET
_SHA1_ARGS_X8_align = _STRUCT_ALIGN
########################################################################
START_FIELDS # MB_MGR
### name size align
FIELD _args, _SHA1_ARGS_X4_size, _SHA1_ARGS_X4_align
FIELD _lens, 4*8, 8
FIELD _unused_lanes, 8, 8
FIELD _ldata, _LANE_DATA_size*8, _LANE_DATA_align
END_FIELDS
_MB_MGR_size = _FIELD_OFFSET
_MB_MGR_align = _STRUCT_ALIGN
_args_digest = _args + _digest
_args_data_ptr = _args + _data_ptr
########################################################################
#### Define constants
########################################################################
#define STS_UNKNOWN 0
#define STS_BEING_PROCESSED 1
#define STS_COMPLETED 2
########################################################################
#### Define JOB_SHA1 structure
########################################################################
START_FIELDS # JOB_SHA1
### name size align
FIELD _buffer, 8, 8 # pointer to buffer
FIELD _len, 4, 4 # length in bytes
FIELD _result_digest, 5*4, 32 # Digest (output)
FIELD _status, 4, 4
FIELD _user_data, 8, 8
END_FIELDS
_JOB_SHA1_size = _FIELD_OFFSET
_JOB_SHA1_align = _STRUCT_ALIGN
arch/x86/crypto/sha1-mb/sha1_mb_mgr_flush_avx2.S deleted 100644 → 0
View file @ 820684cc
/*
* Flush routine for SHA1 multibuffer
*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2014 Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* 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.
*
* Contact Information:
* James Guilford <james.guilford@intel.com>
* Tim Chen <tim.c.chen@linux.intel.com>
*
* BSD LICENSE
*
* Copyright(c) 2014 Intel Corporation.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <linux/linkage.h>
#include <asm/frame.h>
#include "sha1_mb_mgr_datastruct.S"
.extern sha1_x8_avx2
# LINUX register definitions
#define arg1 %rdi
#define arg2 %rsi
# Common definitions
#define state arg1
#define job arg2
#define len2 arg2
# idx must be a register not clobbered by sha1_x8_avx2
#define idx %r8
#define DWORD_idx %r8d
#define unused_lanes %rbx
#define lane_data %rbx
#define tmp2 %rbx
#define tmp2_w %ebx
#define job_rax %rax
#define tmp1 %rax
#define size_offset %rax
#define tmp %rax
#define start_offset %rax
#define tmp3 %arg1
#define extra_blocks %arg2
#define p %arg2
.macro LABEL prefix n
\prefix\n\():
.endm
.macro JNE_SKIP i
jne skip_\i
.endm
.altmacro
.macro SET_OFFSET _offset
offset = \_offset
.endm
.noaltmacro
# JOB* sha1_mb_mgr_flush_avx2(MB_MGR *state)
# arg 1 : rcx : state
ENTRY(sha1_mb_mgr_flush_avx2)
FRAME_BEGIN
push %rbx
# If bit (32+3) is set, then all lanes are empty
mov _unused_lanes(state), unused_lanes
bt $32+3, unused_lanes
jc return_null
# find a lane with a non-null job
xor idx, idx
offset = (_ldata + 1 * _LANE_DATA_size + _job_in_lane)
cmpq $0, offset(state)
cmovne one(%rip), idx
offset = (_ldata + 2 * _LANE_DATA_size + _job_in_lane)
cmpq $0, offset(state)
cmovne two(%rip), idx
offset = (_ldata + 3 * _LANE_DATA_size + _job_in_lane)
cmpq $0, offset(state)
cmovne three(%rip), idx
offset = (_ldata + 4 * _LANE_DATA_size + _job_in_lane)
cmpq $0, offset(state)
cmovne four(%rip), idx
offset = (_ldata + 5 * _LANE_DATA_size + _job_in_lane)
cmpq $0, offset(state)
cmovne five(%rip), idx
offset = (_ldata + 6 * _LANE_DATA_size + _job_in_lane)
cmpq $0, offset(state)
cmovne six(%rip), idx
offset = (_ldata + 7 * _LANE_DATA_size + _job_in_lane)
cmpq $0, offset(state)
cmovne seven(%rip), idx
# copy idx to empty lanes
copy_lane_data:
offset = (_args + _data_ptr)
mov offset(state,idx,8), tmp
I = 0
.rep 8
offset = (_ldata + I * _LANE_DATA_size + _job_in_lane)
cmpq $0, offset(state)
.altmacro
JNE_SKIP %I
offset = (_args + _data_ptr + 8*I)
mov tmp, offset(state)
offset = (_lens + 4*I)
movl $0xFFFFFFFF, offset(state)
LABEL skip_ %I
I = (I+1)
.noaltmacro
.endr
# Find min length
vmovdqu _lens+0*16(state), %xmm0
vmovdqu _lens+1*16(state), %xmm1
vpminud %xmm1, %xmm0, %xmm2 # xmm2 has {D,C,B,A}
vpalignr $8, %xmm2, %xmm3, %xmm3 # xmm3 has {x,x,D,C}
vpminud %xmm3, %xmm2, %xmm2 # xmm2 has {x,x,E,F}
vpalignr $4, %xmm2, %xmm3, %xmm3 # xmm3 has {x,x,x,E}
vpminud %xmm3, %xmm2, %xmm2 # xmm2 has min value in low dword
vmovd %xmm2, DWORD_idx
mov idx, len2
and $0xF, idx
shr $4, len2
jz len_is_0
vpand clear_low_nibble(%rip), %xmm2, %xmm2
vpshufd $0, %xmm2, %xmm2
vpsubd %xmm2, %xmm0, %xmm0
vpsubd %xmm2, %xmm1, %xmm1
vmovdqu %xmm0, _lens+0*16(state)
vmovdqu %xmm1, _lens+1*16(state)
# "state" and "args" are the same address, arg1
# len is arg2
call sha1_x8_avx2
# state and idx are intact
len_is_0:
# process completed job "idx"
imul $_LANE_DATA_size, idx, lane_data
lea _ldata(state, lane_data), lane_data
mov _job_in_lane(lane_data), job_rax
movq $0, _job_in_lane(lane_data)
movl $STS_COMPLETED, _status(job_rax)
mov _unused_lanes(state), unused_lanes
shl $4, unused_lanes
or idx, unused_lanes
mov unused_lanes, _unused_lanes(state)
movl $0xFFFFFFFF, _lens(state, idx, 4)
vmovd _args_digest(state , idx, 4) , %xmm0
vpinsrd $1, _args_digest+1*32(state, idx, 4), %xmm0, %xmm0
vpinsrd $2, _args_digest+2*32(state, idx, 4), %xmm0, %xmm0
vpinsrd $3, _args_digest+3*32(state, idx, 4), %xmm0, %xmm0
movl _args_digest+4*32(state, idx, 4), tmp2_w
vmovdqu %xmm0, _result_digest(job_rax)
offset = (_result_digest + 1*16)
mov tmp2_w, offset(job_rax)
return:
pop %rbx
FRAME_END
ret
return_null:
xor job_rax, job_rax
jmp return
ENDPROC(sha1_mb_mgr_flush_avx2)
#################################################################
.align 16
ENTRY(sha1_mb_mgr_get_comp_job_avx2)
push %rbx
## if bit 32+3 is set, then all lanes are empty
mov _unused_lanes(state), unused_lanes
bt $(32+3), unused_lanes
jc .return_null
# Find min length
vmovdqu _lens(state), %xmm0
vmovdqu _lens+1*16(state), %xmm1
vpminud %xmm1, %xmm0, %xmm2 # xmm2 has {D,C,B,A}
vpalignr $8, %xmm2, %xmm3, %xmm3 # xmm3 has {x,x,D,C}
vpminud %xmm3, %xmm2, %xmm2 # xmm2 has {x,x,E,F}
vpalignr $4, %xmm2, %xmm3, %xmm3 # xmm3 has {x,x,x,E}
vpminud %xmm3, %xmm2, %xmm2 # xmm2 has min value in low dword
vmovd %xmm2, DWORD_idx
test $~0xF, idx
jnz .return_null
# process completed job "idx"
imul $_LANE_DATA_size, idx, lane_data
lea _ldata(state, lane_data), lane_data
mov _job_in_lane(lane_data), job_rax
movq $0, _job_in_lane(lane_data)
movl $STS_COMPLETED, _status(job_rax)
mov _unused_lanes(state), unused_lanes
shl $4, unused_lanes
or idx, unused_lanes
mov unused_lanes, _unused_lanes(state)
movl $0xFFFFFFFF, _lens(state, idx, 4)
vmovd _args_digest(state, idx, 4), %xmm0
vpinsrd $1, _args_digest+1*32(state, idx, 4), %xmm0, %xmm0
vpinsrd $2, _args_digest+2*32(state, idx, 4), %xmm0, %xmm0
vpinsrd $3, _args_digest+3*32(state, idx, 4), %xmm0, %xmm0
movl _args_digest+4*32(state, idx, 4), tmp2_w
vmovdqu %xmm0, _result_digest(job_rax)
movl tmp2_w, _result_digest+1*16(job_rax)
pop %rbx
ret
.return_null:
xor job_rax, job_rax
pop %rbx
ret
ENDPROC(sha1_mb_mgr_get_comp_job_avx2)
.section .rodata.cst16.clear_low_nibble, "aM", @progbits, 16
.align 16
clear_low_nibble:
.octa 0x000000000000000000000000FFFFFFF0
.section .rodata.cst8, "aM", @progbits, 8
.align 8
one:
.quad 1
two:
.quad 2
three:
.quad 3
four:
.quad 4
five:
.quad 5
six:
.quad 6
seven:
.quad 7
arch/x86/crypto/sha1-mb/sha1_mb_mgr_init_avx2.c deleted 100644 → 0
View file @ 820684cc
/*
* Initialization code for multi buffer SHA1 algorithm for AVX2
*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2014 Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* 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.
*
* Contact Information:
* Tim Chen <tim.c.chen@linux.intel.com>
*
* BSD LICENSE
*
* Copyright(c) 2014 Intel Corporation.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "sha1_mb_mgr.h"
void sha1_mb_mgr_init_avx2(struct sha1_mb_mgr *state)
{
unsigned int j;
state->unused_lanes = 0xF76543210ULL;
for (j = 0; j < 8; j++) {
state->lens[j] = 0xFFFFFFFF;
state->ldata[j].job_in_lane = NULL;
}
}
arch/x86/crypto/sha1-mb/sha1_mb_mgr_submit_avx2.S deleted 100644 → 0
View file @ 820684cc
/*
* Buffer submit code for multi buffer SHA1 algorithm
*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2014 Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* 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.
*
* Contact Information:
* James Guilford <james.guilford@intel.com>
* Tim Chen <tim.c.chen@linux.intel.com>
*
* BSD LICENSE
*
* Copyright(c) 2014 Intel Corporation.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <linux/linkage.h>
#include <asm/frame.h>
#include "sha1_mb_mgr_datastruct.S"
.extern sha1_x8_avx
# LINUX register definitions
arg1 = %rdi
arg2 = %rsi
size_offset = %rcx
tmp2 = %rcx
extra_blocks = %rdx
# Common definitions
#define state arg1
#define job %rsi
#define len2 arg2
#define p2 arg2
# idx must be a register not clobberred by sha1_x8_avx2
idx = %r8
DWORD_idx = %r8d
last_len = %r8
p = %r11
start_offset = %r11
unused_lanes = %rbx
BYTE_unused_lanes = %bl
job_rax = %rax
len = %rax
DWORD_len = %eax
lane = %r12
tmp3 = %r12
tmp = %r9
DWORD_tmp = %r9d
lane_data = %r10
# JOB* submit_mb_mgr_submit_avx2(MB_MGR *state, job_sha1 *job)
# arg 1 : rcx : state
# arg 2 : rdx : job
ENTRY(sha1_mb_mgr_submit_avx2)
FRAME_BEGIN
push %rbx
push %r12
mov _unused_lanes(state), unused_lanes
mov unused_lanes, lane
and $0xF, lane
shr $4, unused_lanes
imul $_LANE_DATA_size, lane, lane_data
movl $STS_BEING_PROCESSED, _status(job)
lea _ldata(state, lane_data), lane_data
mov unused_lanes, _unused_lanes(state)
movl _len(job), DWORD_len
mov job, _job_in_lane(lane_data)
shl $4, len
or lane, len
movl DWORD_len, _lens(state , lane, 4)
# Load digest words from result_digest
vmovdqu _result_digest(job), %xmm0
mov _result_digest+1*16(job), DWORD_tmp
vmovd %xmm0, _args_digest(state, lane, 4)
vpextrd $1, %xmm0, _args_digest+1*32(state , lane, 4)
vpextrd $2, %xmm0, _args_digest+2*32(state , lane, 4)
vpextrd $3, %xmm0, _args_digest+3*32(state , lane, 4)
movl DWORD_tmp, _args_digest+4*32(state , lane, 4)
mov _buffer(job), p
mov p, _args_data_ptr(state, lane, 8)
cmp $0xF, unused_lanes
jne return_null
start_loop:
# Find min length
vmovdqa _lens(state), %xmm0
vmovdqa _lens+1*16(state), %xmm1
vpminud %xmm1, %xmm0, %xmm2 # xmm2 has {D,C,B,A}
vpalignr $8, %xmm2, %xmm3, %xmm3 # xmm3 has {x,x,D,C}
vpminud %xmm3, %xmm2, %xmm2 # xmm2 has {x,x,E,F}
vpalignr $4, %xmm2, %xmm3, %xmm3 # xmm3 has {x,x,x,E}
vpminud %xmm3, %xmm2, %xmm2 # xmm2 has min value in low dword
vmovd %xmm2, DWORD_idx
mov idx, len2
and $0xF, idx
shr $4, len2
jz len_is_0
vpand clear_low_nibble(%rip), %xmm2, %xmm2
vpshufd $0, %xmm2, %xmm2
vpsubd %xmm2, %xmm0, %xmm0
vpsubd %xmm2, %xmm1, %xmm1
vmovdqa %xmm0, _lens + 0*16(state)
vmovdqa %xmm1, _lens + 1*16(state)
# "state" and "args" are the same address, arg1
# len is arg2
call sha1_x8_avx2
# state and idx are intact
len_is_0:
# process completed job "idx"
imul $_LANE_DATA_size, idx, lane_data
lea _ldata(state, lane_data), lane_data
mov _job_in_lane(lane_data), job_rax
mov _unused_lanes(state), unused_lanes
movq $0, _job_in_lane(lane_data)
movl $STS_COMPLETED, _status(job_rax)
shl $4, unused_lanes
or idx, unused_lanes
mov unused_lanes, _unused_lanes(state)
movl $0xFFFFFFFF, _lens(state, idx, 4)
vmovd _args_digest(state, idx, 4), %xmm0
vpinsrd $1, _args_digest+1*32(state , idx, 4), %xmm0, %xmm0
vpinsrd $2, _args_digest+2*32(state , idx, 4), %xmm0, %xmm0
vpinsrd $3, _args_digest+3*32(state , idx, 4), %xmm0, %xmm0
movl _args_digest+4*32(state, idx, 4), DWORD_tmp
vmovdqu %xmm0, _result_digest(job_rax)
movl DWORD_tmp, _result_digest+1*16(job_rax)
return:
pop %r12
pop %rbx
FRAME_END
ret
return_null:
xor job_rax, job_rax
jmp return
ENDPROC(sha1_mb_mgr_submit_avx2)
.section .rodata.cst16.clear_low_nibble, "aM", @progbits, 16
.align 16
clear_low_nibble:
.octa 0x000000000000000000000000FFFFFFF0
arch/x86/crypto/sha1-mb/sha1_x8_avx2.S deleted 100644 → 0
View file @ 820684cc
/*
* Multi-buffer SHA1 algorithm hash compute routine
*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2014 Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* 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.
*
* Contact Information:
* James Guilford <james.guilford@intel.com>
* Tim Chen <tim.c.chen@linux.intel.com>
*
* BSD LICENSE
*
* Copyright(c) 2014 Intel Corporation.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <linux/linkage.h>
#include "sha1_mb_mgr_datastruct.S"
## code to compute oct SHA1 using SSE-256
## outer calling routine takes care of save and restore of XMM registers
## Function clobbers: rax, rcx, rdx, rbx, rsi, rdi, r9-r15# ymm0-15
##
## Linux clobbers: rax rbx rcx rdx rsi r9 r10 r11 r12 r13 r14 r15
## Linux preserves: rdi rbp r8
##
## clobbers ymm0-15
# TRANSPOSE8 r0, r1, r2, r3, r4, r5, r6, r7, t0, t1
# "transpose" data in {r0...r7} using temps {t0...t1}
# Input looks like: {r0 r1 r2 r3 r4 r5 r6 r7}
# r0 = {a7 a6 a5 a4 a3 a2 a1 a0}
# r1 = {b7 b6 b5 b4 b3 b2 b1 b0}
# r2 = {c7 c6 c5 c4 c3 c2 c1 c0}
# r3 = {d7 d6 d5 d4 d3 d2 d1 d0}
# r4 = {e7 e6 e5 e4 e3 e2 e1 e0}
# r5 = {f7 f6 f5 f4 f3 f2 f1 f0}
# r6 = {g7 g6 g5 g4 g3 g2 g1 g0}
# r7 = {h7 h6 h5 h4 h3 h2 h1 h0}
#
# Output looks like: {r0 r1 r2 r3 r4 r5 r6 r7}
# r0 = {h0 g0 f0 e0 d0 c0 b0 a0}
# r1 = {h1 g1 f1 e1 d1 c1 b1 a1}
# r2 = {h2 g2 f2 e2 d2 c2 b2 a2}
# r3 = {h3 g3 f3 e3 d3 c3 b3 a3}
# r4 = {h4 g4 f4 e4 d4 c4 b4 a4}
# r5 = {h5 g5 f5 e5 d5 c5 b5 a5}
# r6 = {h6 g6 f6 e6 d6 c6 b6 a6}
# r7 = {h7 g7 f7 e7 d7 c7 b7 a7}
#
.macro TRANSPOSE8 r0 r1 r2 r3 r4 r5 r6 r7 t0 t1
# process top half (r0..r3) {a...d}
vshufps $0x44, \r1, \r0, \t0 # t0 = {b5 b4 a5 a4 b1 b0 a1 a0}
vshufps $0xEE, \r1, \r0, \r0 # r0 = {b7 b6 a7 a6 b3 b2 a3 a2}
vshufps $0x44, \r3, \r2, \t1 # t1 = {d5 d4 c5 c4 d1 d0 c1 c0}
vshufps $0xEE, \r3, \r2, \r2 # r2 = {d7 d6 c7 c6 d3 d2 c3 c2}
vshufps $0xDD, \t1, \t0, \r3 # r3 = {d5 c5 b5 a5 d1 c1 b1 a1}
vshufps $0x88, \r2, \r0, \r1 # r1 = {d6 c6 b6 a6 d2 c2 b2 a2}
vshufps $0xDD, \r2, \r0, \r0 # r0 = {d7 c7 b7 a7 d3 c3 b3 a3}
vshufps $0x88, \t1, \t0, \t0 # t0 = {d4 c4 b4 a4 d0 c0 b0 a0}
# use r2 in place of t0
# process bottom half (r4..r7) {e...h}
vshufps $0x44, \r5, \r4, \r2 # r2 = {f5 f4 e5 e4 f1 f0 e1 e0}
vshufps $0xEE, \r5, \r4, \r4 # r4 = {f7 f6 e7 e6 f3 f2 e3 e2}
vshufps $0x44, \r7, \r6, \t1 # t1 = {h5 h4 g5 g4 h1 h0 g1 g0}
vshufps $0xEE, \r7, \r6, \r6 # r6 = {h7 h6 g7 g6 h3 h2 g3 g2}
vshufps $0xDD, \t1, \r2, \r7 # r7 = {h5 g5 f5 e5 h1 g1 f1 e1}
vshufps $0x88, \r6, \r4, \r5 # r5 = {h6 g6 f6 e6 h2 g2 f2 e2}
vshufps $0xDD, \r6, \r4, \r4 # r4 = {h7 g7 f7 e7 h3 g3 f3 e3}
vshufps $0x88, \t1, \r2, \t1 # t1 = {h4 g4 f4 e4 h0 g0 f0 e0}
vperm2f128 $0x13, \r1, \r5, \r6 # h6...a6
vperm2f128 $0x02, \r1, \r5, \r2 # h2...a2
vperm2f128 $0x13, \r3, \r7, \r5 # h5...a5
vperm2f128 $0x02, \r3, \r7, \r1 # h1...a1
vperm2f128 $0x13, \r0, \r4, \r7 # h7...a7
vperm2f128 $0x02, \r0, \r4, \r3 # h3...a3
vperm2f128 $0x13, \t0, \t1, \r4 # h4...a4
vperm2f128 $0x02, \t0, \t1, \r0 # h0...a0
.endm
##
## Magic functions defined in FIPS 180-1
##
# macro MAGIC_F0 F,B,C,D,T ## F = (D ^ (B & (C ^ D)))
.macro MAGIC_F0 regF regB regC regD regT
vpxor \regD, \regC, \regF
vpand \regB, \regF, \regF
vpxor \regD, \regF, \regF
.endm
# macro MAGIC_F1 F,B,C,D,T ## F = (B ^ C ^ D)
.macro MAGIC_F1 regF regB regC regD regT
vpxor \regC, \regD, \regF
vpxor \regB, \regF, \regF
.endm
# macro MAGIC_F2 F,B,C,D,T ## F = ((B & C) | (B & D) | (C & D))
.macro MAGIC_F2 regF regB regC regD regT
vpor \regC, \regB, \regF
vpand \regC, \regB, \regT
vpand \regD, \regF, \regF
vpor \regT, \regF, \regF
.endm
# macro MAGIC_F3 F,B,C,D,T ## F = (B ^ C ^ D)
.macro MAGIC_F3 regF regB regC regD regT
MAGIC_F1 \regF,\regB,\regC,\regD,\regT
.endm
# PROLD reg, imm, tmp
.macro PROLD reg imm tmp
vpsrld $(32-\imm), \reg, \tmp
vpslld $\imm, \reg, \reg
vpor \tmp, \reg, \reg
.endm
.macro PROLD_nd reg imm tmp src
vpsrld $(32-\imm), \src, \tmp
vpslld $\imm, \src, \reg
vpor \tmp, \reg, \reg
.endm
.macro SHA1_STEP_00_15 regA regB regC regD regE regT regF memW immCNT MAGIC
vpaddd \immCNT, \regE, \regE
vpaddd \memW*32(%rsp), \regE, \regE
PROLD_nd \regT, 5, \regF, \regA
vpaddd \regT, \regE, \regE
\MAGIC \regF, \regB, \regC, \regD, \regT
PROLD \regB, 30, \regT
vpaddd \regF, \regE, \regE
.endm
.macro SHA1_STEP_16_79 regA regB regC regD regE regT regF memW immCNT MAGIC
vpaddd \immCNT, \regE, \regE
offset = ((\memW - 14) & 15) * 32
vmovdqu offset(%rsp), W14
vpxor W14, W16, W16
offset = ((\memW - 8) & 15) * 32
vpxor offset(%rsp), W16, W16
offset = ((\memW - 3) & 15) * 32
vpxor offset(%rsp), W16, W16
vpsrld $(32-1), W16, \regF
vpslld $1, W16, W16
vpor W16, \regF, \regF
ROTATE_W
offset = ((\memW - 0) & 15) * 32
vmovdqu \regF, offset(%rsp)
vpaddd \regF, \regE, \regE
PROLD_nd \regT, 5, \regF, \regA
vpaddd \regT, \regE, \regE
\MAGIC \regF,\regB,\regC,\regD,\regT ## FUN = MAGIC_Fi(B,C,D)
PROLD \regB,30, \regT
vpaddd \regF, \regE, \regE
.endm
########################################################################
########################################################################
########################################################################
## FRAMESZ plus pushes must be an odd multiple of 8
YMM_SAVE = (15-15)*32
FRAMESZ = 32*16 + YMM_SAVE
_YMM = FRAMESZ - YMM_SAVE
#define VMOVPS vmovups
IDX = %rax
inp0 = %r9
inp1 = %r10
inp2 = %r11
inp3 = %r12
inp4 = %r13
inp5 = %r14
inp6 = %r15
inp7 = %rcx
arg1 = %rdi
arg2 = %rsi
RSP_SAVE = %rdx
# ymm0 A
# ymm1 B
# ymm2 C
# ymm3 D
# ymm4 E
# ymm5 F AA
# ymm6 T0 BB
# ymm7 T1 CC
# ymm8 T2 DD
# ymm9 T3 EE
# ymm10 T4 TMP
# ymm11 T5 FUN
# ymm12 T6 K
# ymm13 T7 W14
# ymm14 T8 W15
# ymm15 T9 W16
A = %ymm0
B = %ymm1
C = %ymm2
D = %ymm3
E = %ymm4
F = %ymm5
T0 = %ymm6
T1 = %ymm7
T2 = %ymm8
T3 = %ymm9
T4 = %ymm10
T5 = %ymm11
T6 = %ymm12
T7 = %ymm13
T8 = %ymm14
T9 = %ymm15
AA = %ymm5
BB = %ymm6
CC = %ymm7
DD = %ymm8
EE = %ymm9
TMP = %ymm10
FUN = %ymm11
K = %ymm12
W14 = %ymm13
W15 = %ymm14
W16 = %ymm15
.macro ROTATE_ARGS
TMP_ = E
E = D
D = C
C = B
B = A
A = TMP_
.endm
.macro ROTATE_W
TMP_ = W16
W16 = W15
W15 = W14
W14 = TMP_
.endm
# 8 streams x 5 32bit words per digest x 4 bytes per word
#define DIGEST_SIZE (8*5*4)
.align 32
# void sha1_x8_avx2(void **input_data, UINT128 *digest, UINT32 size)
# arg 1 : pointer to array[4] of pointer to input data
# arg 2 : size (in blocks) ;; assumed to be >= 1
#
ENTRY(sha1_x8_avx2)
# save callee-saved clobbered registers to comply with C function ABI
push %r12
push %r13
push %r14
push %r15
#save rsp
mov %rsp, RSP_SAVE
sub $FRAMESZ, %rsp
#align rsp to 32 Bytes
and $~0x1F, %rsp
## Initialize digests
vmovdqu 0*32(arg1), A
vmovdqu 1*32(arg1), B
vmovdqu 2*32(arg1), C
vmovdqu 3*32(arg1), D
vmovdqu 4*32(arg1), E
## transpose input onto stack
mov _data_ptr+0*8(arg1),inp0
mov _data_ptr+1*8(arg1),inp1
mov _data_ptr+2*8(arg1),inp2
mov _data_ptr+3*8(arg1),inp3
mov _data_ptr+4*8(arg1),inp4
mov _data_ptr+5*8(arg1),inp5
mov _data_ptr+6*8(arg1),inp6
mov _data_ptr+7*8(arg1),inp7
xor IDX, IDX
lloop:
vmovdqu PSHUFFLE_BYTE_FLIP_MASK(%rip), F
I=0
.rep 2
VMOVPS (inp0, IDX), T0
VMOVPS (inp1, IDX), T1
VMOVPS (inp2, IDX), T2
VMOVPS (inp3, IDX), T3
VMOVPS (inp4, IDX), T4
VMOVPS (inp5, IDX), T5
VMOVPS (inp6, IDX), T6
VMOVPS (inp7, IDX), T7
TRANSPOSE8 T0, T1, T2, T3, T4, T5, T6, T7, T8, T9
vpshufb F, T0, T0
vmovdqu T0, (I*8)*32(%rsp)
vpshufb F, T1, T1
vmovdqu T1, (I*8+1)*32(%rsp)
vpshufb F, T2, T2
vmovdqu T2, (I*8+2)*32(%rsp)
vpshufb F, T3, T3
vmovdqu T3, (I*8+3)*32(%rsp)
vpshufb F, T4, T4
vmovdqu T4, (I*8+4)*32(%rsp)
vpshufb F, T5, T5
vmovdqu T5, (I*8+5)*32(%rsp)
vpshufb F, T6, T6
vmovdqu T6, (I*8+6)*32(%rsp)
vpshufb F, T7, T7
vmovdqu T7, (I*8+7)*32(%rsp)
add $32, IDX
I = (I+1)
.endr
# save old digests
vmovdqu A,AA
vmovdqu B,BB
vmovdqu C,CC
vmovdqu D,DD
vmovdqu E,EE
##
## perform 0-79 steps
##
vmovdqu K00_19(%rip), K
## do rounds 0...15
I = 0
.rep 16
SHA1_STEP_00_15 A,B,C,D,E, TMP,FUN, I, K, MAGIC_F0
ROTATE_ARGS
I = (I+1)
.endr
## do rounds 16...19
vmovdqu ((16 - 16) & 15) * 32 (%rsp), W16
vmovdqu ((16 - 15) & 15) * 32 (%rsp), W15
.rep 4
SHA1_STEP_16_79 A,B,C,D,E, TMP,FUN, I, K, MAGIC_F0
ROTATE_ARGS
I = (I+1)
.endr
## do rounds 20...39
vmovdqu K20_39(%rip), K
.rep 20
SHA1_STEP_16_79 A,B,C,D,E, TMP,FUN, I, K, MAGIC_F1
ROTATE_ARGS
I = (I+1)
.endr
## do rounds 40...59
vmovdqu K40_59(%rip), K
.rep 20
SHA1_STEP_16_79 A,B,C,D,E, TMP,FUN, I, K, MAGIC_F2
ROTATE_ARGS
I = (I+1)
.endr
## do rounds 60...79
vmovdqu K60_79(%rip), K
.rep 20
SHA1_STEP_16_79 A,B,C,D,E, TMP,FUN, I, K, MAGIC_F3
ROTATE_ARGS
I = (I+1)
.endr
vpaddd AA,A,A
vpaddd BB,B,B
vpaddd CC,C,C
vpaddd DD,D,D
vpaddd EE,E,E
sub $1, arg2
jne lloop
# write out digests
vmovdqu A, 0*32(arg1)
vmovdqu B, 1*32(arg1)
vmovdqu C, 2*32(arg1)
vmovdqu D, 3*32(arg1)
vmovdqu E, 4*32(arg1)
# update input pointers
add IDX, inp0
add IDX, inp1
add IDX, inp2
add IDX, inp3
add IDX, inp4
add IDX, inp5
add IDX, inp6
add IDX, inp7
mov inp0, _data_ptr (arg1)
mov inp1, _data_ptr + 1*8(arg1)
mov inp2, _data_ptr + 2*8(arg1)
mov inp3, _data_ptr + 3*8(arg1)
mov inp4, _data_ptr + 4*8(arg1)
mov inp5, _data_ptr + 5*8(arg1)
mov inp6, _data_ptr + 6*8(arg1)
mov inp7, _data_ptr + 7*8(arg1)
################
## Postamble
mov RSP_SAVE, %rsp
# restore callee-saved clobbered registers
pop %r15
pop %r14
pop %r13
pop %r12
ret
ENDPROC(sha1_x8_avx2)
.section .rodata.cst32.K00_19, "aM", @progbits, 32
.align 32
K00_19:
.octa 0x5A8279995A8279995A8279995A827999
.octa 0x5A8279995A8279995A8279995A827999
.section .rodata.cst32.K20_39, "aM", @progbits, 32
.align 32
K20_39:
.octa 0x6ED9EBA16ED9EBA16ED9EBA16ED9EBA1
.octa 0x6ED9EBA16ED9EBA16ED9EBA16ED9EBA1
.section .rodata.cst32.K40_59, "aM", @progbits, 32
.align 32
K40_59:
.octa 0x8F1BBCDC8F1BBCDC8F1BBCDC8F1BBCDC
.octa 0x8F1BBCDC8F1BBCDC8F1BBCDC8F1BBCDC
.section .rodata.cst32.K60_79, "aM", @progbits, 32
.align 32
K60_79:
.octa 0xCA62C1D6CA62C1D6CA62C1D6CA62C1D6
.octa 0xCA62C1D6CA62C1D6CA62C1D6CA62C1D6
.section .rodata.cst32.PSHUFFLE_BYTE_FLIP_MASK, "aM", @progbits, 32
.align 32
PSHUFFLE_BYTE_FLIP_MASK:
.octa 0x0c0d0e0f08090a0b0405060700010203
.octa 0x0c0d0e0f08090a0b0405060700010203
arch/x86/crypto/sha256-mb/Makefile deleted 100644 → 0
View file @ 820684cc
# SPDX-License-Identifier: GPL-2.0
#
# Arch-specific CryptoAPI modules.
#
OBJECT_FILES_NON_STANDARD := y
avx2_supported := $(call as-instr,vpgatherdd %ymm0$(comma)(%eax$(comma)%ymm1\
$(comma)4)$(comma)%ymm2,yes,no)
ifeq ($(avx2_supported),yes)
obj-$(CONFIG_CRYPTO_SHA256_MB) += sha256-mb.o
sha256-mb-y := sha256_mb.o sha256_mb_mgr_flush_avx2.o \
sha256_mb_mgr_init_avx2.o sha256_mb_mgr_submit_avx2.o sha256_x8_avx2.o
endif
arch/x86/crypto/sha256-mb/sha256_mb.c deleted 100644 → 0
View file @ 820684cc
/*
* Multi buffer SHA256 algorithm Glue Code
*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2016 Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* 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.
*
* Contact Information:
* Megha Dey <megha.dey@linux.intel.com>
*
* BSD LICENSE
*
* Copyright(c) 2016 Intel Corporation.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <crypto/internal/hash.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/mm.h>
#include <linux/cryptohash.h>
#include <linux/types.h>
#include <linux/list.h>
#include <crypto/scatterwalk.h>
#include <crypto/sha.h>
#include <crypto/mcryptd.h>
#include <crypto/crypto_wq.h>
#include <asm/byteorder.h>
#include <linux/hardirq.h>
#include <asm/fpu/api.h>
#include "sha256_mb_ctx.h"
#define FLUSH_INTERVAL 1000 /* in usec */
static struct mcryptd_alg_state sha256_mb_alg_state;
struct sha256_mb_ctx {
struct mcryptd_ahash *mcryptd_tfm;
};
static inline struct mcryptd_hash_request_ctx
*cast_hash_to_mcryptd_ctx(struct sha256_hash_ctx *hash_ctx)
{
struct ahash_request *areq;
areq = container_of((void *) hash_ctx, struct ahash_request, __ctx);
return container_of(areq, struct mcryptd_hash_request_ctx, areq);
}
static inline struct ahash_request
*cast_mcryptd_ctx_to_req(struct mcryptd_hash_request_ctx *ctx)
{
return container_of((void *) ctx, struct ahash_request, __ctx);
}
static void req_ctx_init(struct mcryptd_hash_request_ctx *rctx,
struct ahash_request *areq)
{
rctx->flag = HASH_UPDATE;
}
static asmlinkage void (*sha256_job_mgr_init)(struct sha256_mb_mgr *state);
static asmlinkage struct job_sha256* (*sha256_job_mgr_submit)
(struct sha256_mb_mgr *state, struct job_sha256 *job);
static asmlinkage struct job_sha256* (*sha256_job_mgr_flush)
(struct sha256_mb_mgr *state);
static asmlinkage struct job_sha256* (*sha256_job_mgr_get_comp_job)
(struct sha256_mb_mgr *state);
inline uint32_t sha256_pad(uint8_t padblock[SHA256_BLOCK_SIZE * 2],
uint64_t total_len)
{
uint32_t i = total_len & (SHA256_BLOCK_SIZE - 1);
memset(&padblock[i], 0, SHA256_BLOCK_SIZE);
padblock[i] = 0x80;
i += ((SHA256_BLOCK_SIZE - 1) &
(0 - (total_len + SHA256_PADLENGTHFIELD_SIZE + 1)))
+ 1 + SHA256_PADLENGTHFIELD_SIZE;
#if SHA256_PADLENGTHFIELD_SIZE == 16
*((uint64_t *) &padblock[i - 16]) = 0;
#endif
*((uint64_t *) &padblock[i - 8]) = cpu_to_be64(total_len << 3);
/* Number of extra blocks to hash */
return i >> SHA256_LOG2_BLOCK_SIZE;
}
static struct sha256_hash_ctx
*sha256_ctx_mgr_resubmit(struct sha256_ctx_mgr *mgr,
struct sha256_hash_ctx *ctx)
{
while (ctx) {
if (ctx->status & HASH_CTX_STS_COMPLETE) {
/* Clear PROCESSING bit */
ctx->status = HASH_CTX_STS_COMPLETE;
return ctx;
}
/*
* If the extra blocks are empty, begin hashing what remains
* in the user's buffer.
*/
if (ctx->partial_block_buffer_length == 0 &&
ctx->incoming_buffer_length) {
const void *buffer = ctx->incoming_buffer;
uint32_t len = ctx->incoming_buffer_length;
uint32_t copy_len;
/*
* Only entire blocks can be hashed.
* Copy remainder to extra blocks buffer.
*/
copy_len = len & (SHA256_BLOCK_SIZE-1);
if (copy_len) {
len -= copy_len;
memcpy(ctx->partial_block_buffer,
((const char *) buffer + len),
copy_len);
ctx->partial_block_buffer_length = copy_len;
}
ctx->incoming_buffer_length = 0;
/* len should be a multiple of the block size now */
assert((len % SHA256_BLOCK_SIZE) == 0);
/* Set len to the number of blocks to be hashed */
len >>= SHA256_LOG2_BLOCK_SIZE;
if (len) {
ctx->job.buffer = (uint8_t *) buffer;
ctx->job.len = len;
ctx = (struct sha256_hash_ctx *)
sha256_job_mgr_submit(&mgr->mgr, &ctx->job);
continue;
}
}
/*
* If the extra blocks are not empty, then we are
* either on the last block(s) or we need more
* user input before continuing.
*/
if (ctx->status & HASH_CTX_STS_LAST) {
uint8_t *buf = ctx->partial_block_buffer;
uint32_t n_extra_blocks =
sha256_pad(buf, ctx->total_length);
ctx->status = (HASH_CTX_STS_PROCESSING |
HASH_CTX_STS_COMPLETE);
ctx->job.buffer = buf;
ctx->job.len = (uint32_t) n_extra_blocks;
ctx = (struct sha256_hash_ctx *)
sha256_job_mgr_submit(&mgr->mgr, &ctx->job);
continue;
}
ctx->status = HASH_CTX_STS_IDLE;
return ctx;
}
return NULL;
}
static struct sha256_hash_ctx
*sha256_ctx_mgr_get_comp_ctx(struct sha256_ctx_mgr *mgr)
{
/*
* If get_comp_job returns NULL, there are no jobs complete.
* If get_comp_job returns a job, verify that it is safe to return to
* the user. If it is not ready, resubmit the job to finish processing.
* If sha256_ctx_mgr_resubmit returned a job, it is ready to be
* returned. Otherwise, all jobs currently being managed by the
* hash_ctx_mgr still need processing.
*/
struct sha256_hash_ctx *ctx;
ctx = (struct sha256_hash_ctx *) sha256_job_mgr_get_comp_job(&mgr->mgr);
return sha256_ctx_mgr_resubmit(mgr, ctx);
}
static void sha256_ctx_mgr_init(struct sha256_ctx_mgr *mgr)
{
sha256_job_mgr_init(&mgr->mgr);
}
static struct sha256_hash_ctx *sha256_ctx_mgr_submit(struct sha256_ctx_mgr *mgr,
struct sha256_hash_ctx *ctx,
const void *buffer,
uint32_t len,
int flags)
{
if (flags & ~(HASH_UPDATE | HASH_LAST)) {
/* User should not pass anything other than UPDATE or LAST */
ctx->error = HASH_CTX_ERROR_INVALID_FLAGS;
return ctx;
}
if (ctx->status & HASH_CTX_STS_PROCESSING) {
/* Cannot submit to a currently processing job. */
ctx->error = HASH_CTX_ERROR_ALREADY_PROCESSING;
return ctx;
}
if (ctx->status & HASH_CTX_STS_COMPLETE) {
/* Cannot update a finished job. */
ctx->error = HASH_CTX_ERROR_ALREADY_COMPLETED;
return ctx;
}
/* If we made it here, there was no error during this call to submit */
ctx->error = HASH_CTX_ERROR_NONE;
/* Store buffer ptr info from user */
ctx->incoming_buffer = buffer;
ctx->incoming_buffer_length = len;
/*
* Store the user's request flags and mark this ctx as currently
* being processed.
*/
ctx->status = (flags & HASH_LAST) ?
(HASH_CTX_STS_PROCESSING | HASH_CTX_STS_LAST) :
HASH_CTX_STS_PROCESSING;
/* Advance byte counter */
ctx->total_length += len;
/*
* If there is anything currently buffered in the extra blocks,
* append to it until it contains a whole block.
* Or if the user's buffer contains less than a whole block,
* append as much as possible to the extra block.
*/
if (ctx->partial_block_buffer_length || len < SHA256_BLOCK_SIZE) {
/*
* Compute how many bytes to copy from user buffer into
* extra block
*/
uint32_t copy_len = SHA256_BLOCK_SIZE -
ctx->partial_block_buffer_length;
if (len < copy_len)
copy_len = len;
if (copy_len) {
/* Copy and update relevant pointers and counters */
memcpy(
&ctx->partial_block_buffer[ctx->partial_block_buffer_length],
buffer, copy_len);
ctx->partial_block_buffer_length += copy_len;
ctx->incoming_buffer = (const void *)
((const char *)buffer + copy_len);
ctx->incoming_buffer_length = len - copy_len;
}
/* The extra block should never contain more than 1 block */
assert(ctx->partial_block_buffer_length <= SHA256_BLOCK_SIZE);
/*
* If the extra block buffer contains exactly 1 block,
* it can be hashed.
*/
if (ctx->partial_block_buffer_length >= SHA256_BLOCK_SIZE) {
ctx->partial_block_buffer_length = 0;
ctx->job.buffer = ctx->partial_block_buffer;
ctx->job.len = 1;
ctx = (struct sha256_hash_ctx *)
sha256_job_mgr_submit(&mgr->mgr, &ctx->job);
}
}
return sha256_ctx_mgr_resubmit(mgr, ctx);
}
static struct sha256_hash_ctx *sha256_ctx_mgr_flush(struct sha256_ctx_mgr *mgr)
{
struct sha256_hash_ctx *ctx;
while (1) {
ctx = (struct sha256_hash_ctx *)
sha256_job_mgr_flush(&mgr->mgr);
/* If flush returned 0, there are no more jobs in flight. */
if (!ctx)
return NULL;
/*
* If flush returned a job, resubmit the job to finish
* processing.
*/
ctx = sha256_ctx_mgr_resubmit(mgr, ctx);
/*
* If sha256_ctx_mgr_resubmit returned a job, it is ready to
* be returned. Otherwise, all jobs currently being managed by
* the sha256_ctx_mgr still need processing. Loop.
*/
if (ctx)
return ctx;
}
}
static int sha256_mb_init(struct ahash_request *areq)
{
struct sha256_hash_ctx *sctx = ahash_request_ctx(areq);
hash_ctx_init(sctx);
sctx->job.result_digest[0] = SHA256_H0;
sctx->job.result_digest[1] = SHA256_H1;
sctx->job.result_digest[2] = SHA256_H2;
sctx->job.result_digest[3] = SHA256_H3;
sctx->job.result_digest[4] = SHA256_H4;
sctx->job.result_digest[5] = SHA256_H5;
sctx->job.result_digest[6] = SHA256_H6;
sctx->job.result_digest[7] = SHA256_H7;
sctx->total_length = 0;
sctx->partial_block_buffer_length = 0;
sctx->status = HASH_CTX_STS_IDLE;
return 0;
}
static int sha256_mb_set_results(struct mcryptd_hash_request_ctx *rctx)
{
int i;
struct sha256_hash_ctx *sctx = ahash_request_ctx(&rctx->areq);
__be32 *dst = (__be32 *) rctx->out;
for (i = 0; i < 8; ++i)
dst[i] = cpu_to_be32(sctx->job.result_digest[i]);
return 0;
}
static int sha_finish_walk(struct mcryptd_hash_request_ctx **ret_rctx,
struct mcryptd_alg_cstate *cstate, bool flush)
{
int flag = HASH_UPDATE;
int nbytes, err = 0;
struct mcryptd_hash_request_ctx *rctx = *ret_rctx;
struct sha256_hash_ctx *sha_ctx;
/* more work ? */
while (!(rctx->flag & HASH_DONE)) {
nbytes = crypto_ahash_walk_done(&rctx->walk, 0);
if (nbytes < 0) {
err = nbytes;
goto out;
}
/* check if the walk is done */
if (crypto_ahash_walk_last(&rctx->walk)) {
rctx->flag |= HASH_DONE;
if (rctx->flag & HASH_FINAL)
flag |= HASH_LAST;
}
sha_ctx = (struct sha256_hash_ctx *)
ahash_request_ctx(&rctx->areq);
kernel_fpu_begin();
sha_ctx = sha256_ctx_mgr_submit(cstate->mgr, sha_ctx,
rctx->walk.data, nbytes, flag);
if (!sha_ctx) {
if (flush)
sha_ctx = sha256_ctx_mgr_flush(cstate->mgr);
}
kernel_fpu_end();
if (sha_ctx)
rctx = cast_hash_to_mcryptd_ctx(sha_ctx);
else {
rctx = NULL;
goto out;
}
}
/* copy the results */
if (rctx->flag & HASH_FINAL)
sha256_mb_set_results(rctx);
out:
*ret_rctx = rctx;
return err;
}
static int sha_complete_job(struct mcryptd_hash_request_ctx *rctx,
struct mcryptd_alg_cstate *cstate,
int err)
{
struct ahash_request *req = cast_mcryptd_ctx_to_req(rctx);
struct sha256_hash_ctx *sha_ctx;
struct mcryptd_hash_request_ctx *req_ctx;
int ret;
/* remove from work list */
spin_lock(&cstate->work_lock);
list_del(&rctx->waiter);
spin_unlock(&cstate->work_lock);
if (irqs_disabled())
rctx->complete(&req->base, err);
else {
local_bh_disable();
rctx->complete(&req->base, err);
local_bh_enable();
}
/* check to see if there are other jobs that are done */
sha_ctx = sha256_ctx_mgr_get_comp_ctx(cstate->mgr);
while (sha_ctx) {
req_ctx = cast_hash_to_mcryptd_ctx(sha_ctx);
ret = sha_finish_walk(&req_ctx, cstate, false);
if (req_ctx) {
spin_lock(&cstate->work_lock);
list_del(&req_ctx->waiter);
spin_unlock(&cstate->work_lock);
req = cast_mcryptd_ctx_to_req(req_ctx);
if (irqs_disabled())
req_ctx->complete(&req->base, ret);
else {
local_bh_disable();
req_ctx->complete(&req->base, ret);
local_bh_enable();
}
}
sha_ctx = sha256_ctx_mgr_get_comp_ctx(cstate->mgr);
}
return 0;
}
static void sha256_mb_add_list(struct mcryptd_hash_request_ctx *rctx,
struct mcryptd_alg_cstate *cstate)
{
unsigned long next_flush;
unsigned long delay = usecs_to_jiffies(FLUSH_INTERVAL);
/* initialize tag */
rctx->tag.arrival = jiffies; /* tag the arrival time */
rctx->tag.seq_num = cstate->next_seq_num++;
next_flush = rctx->tag.arrival + delay;
rctx->tag.expire = next_flush;
spin_lock(&cstate->work_lock);
list_add_tail(&rctx->waiter, &cstate->work_list);
spin_unlock(&cstate->work_lock);
mcryptd_arm_flusher(cstate, delay);
}
static int sha256_mb_update(struct ahash_request *areq)
{
struct mcryptd_hash_request_ctx *rctx =
container_of(areq, struct mcryptd_hash_request_ctx, areq);
struct mcryptd_alg_cstate *cstate =
this_cpu_ptr(sha256_mb_alg_state.alg_cstate);
struct ahash_request *req = cast_mcryptd_ctx_to_req(rctx);
struct sha256_hash_ctx *sha_ctx;
int ret = 0, nbytes;
/* sanity check */
if (rctx->tag.cpu != smp_processor_id()) {
pr_err("mcryptd error: cpu clash\n");
goto done;
}
/* need to init context */
req_ctx_init(rctx, areq);
nbytes = crypto_ahash_walk_first(req, &rctx->walk);
if (nbytes < 0) {
ret = nbytes;
goto done;
}
if (crypto_ahash_walk_last(&rctx->walk))
rctx->flag |= HASH_DONE;
/* submit */
sha_ctx = (struct sha256_hash_ctx *) ahash_request_ctx(areq);
sha256_mb_add_list(rctx, cstate);
kernel_fpu_begin();
sha_ctx = sha256_ctx_mgr_submit(cstate->mgr, sha_ctx, rctx->walk.data,
nbytes, HASH_UPDATE);
kernel_fpu_end();
/* check if anything is returned */
if (!sha_ctx)
return -EINPROGRESS;
if (sha_ctx->error) {
ret = sha_ctx->error;
rctx = cast_hash_to_mcryptd_ctx(sha_ctx);
goto done;
}
rctx = cast_hash_to_mcryptd_ctx(sha_ctx);
ret = sha_finish_walk(&rctx, cstate, false);
if (!rctx)
return -EINPROGRESS;
done:
sha_complete_job(rctx, cstate, ret);
return ret;
}
static int sha256_mb_finup(struct ahash_request *areq)
{
struct mcryptd_hash_request_ctx *rctx =
container_of(areq, struct mcryptd_hash_request_ctx, areq);
struct mcryptd_alg_cstate *cstate =
this_cpu_ptr(sha256_mb_alg_state.alg_cstate);
struct ahash_request *req = cast_mcryptd_ctx_to_req(rctx);
struct sha256_hash_ctx *sha_ctx;
int ret = 0, flag = HASH_UPDATE, nbytes;
/* sanity check */
if (rctx->tag.cpu != smp_processor_id()) {
pr_err("mcryptd error: cpu clash\n");
goto done;
}
/* need to init context */
req_ctx_init(rctx, areq);
nbytes = crypto_ahash_walk_first(req, &rctx->walk);
if (nbytes < 0) {
ret = nbytes;
goto done;
}
if (crypto_ahash_walk_last(&rctx->walk)) {
rctx->flag |= HASH_DONE;
flag = HASH_LAST;
}
/* submit */
rctx->flag |= HASH_FINAL;
sha_ctx = (struct sha256_hash_ctx *) ahash_request_ctx(areq);
sha256_mb_add_list(rctx, cstate);
kernel_fpu_begin();
sha_ctx = sha256_ctx_mgr_submit(cstate->mgr, sha_ctx, rctx->walk.data,
nbytes, flag);
kernel_fpu_end();
/* check if anything is returned */
if (!sha_ctx)
return -EINPROGRESS;
if (sha_ctx->error) {
ret = sha_ctx->error;
goto done;
}
rctx = cast_hash_to_mcryptd_ctx(sha_ctx);
ret = sha_finish_walk(&rctx, cstate, false);
if (!rctx)
return -EINPROGRESS;
done:
sha_complete_job(rctx, cstate, ret);
return ret;
}
static int sha256_mb_final(struct ahash_request *areq)
{
struct mcryptd_hash_request_ctx *rctx =
container_of(areq, struct mcryptd_hash_request_ctx,
areq);
struct mcryptd_alg_cstate *cstate =
this_cpu_ptr(sha256_mb_alg_state.alg_cstate);
struct sha256_hash_ctx *sha_ctx;
int ret = 0;
u8 data;
/* sanity check */
if (rctx->tag.cpu != smp_processor_id()) {
pr_err("mcryptd error: cpu clash\n");
goto done;
}
/* need to init context */
req_ctx_init(rctx, areq);
rctx->flag |= HASH_DONE | HASH_FINAL;
sha_ctx = (struct sha256_hash_ctx *) ahash_request_ctx(areq);
/* flag HASH_FINAL and 0 data size */
sha256_mb_add_list(rctx, cstate);
kernel_fpu_begin();
sha_ctx = sha256_ctx_mgr_submit(cstate->mgr, sha_ctx, &data, 0,
HASH_LAST);
kernel_fpu_end();
/* check if anything is returned */
if (!sha_ctx)
return -EINPROGRESS;
if (sha_ctx->error) {
ret = sha_ctx->error;
rctx = cast_hash_to_mcryptd_ctx(sha_ctx);
goto done;
}
rctx = cast_hash_to_mcryptd_ctx(sha_ctx);
ret = sha_finish_walk(&rctx, cstate, false);
if (!rctx)
return -EINPROGRESS;
done:
sha_complete_job(rctx, cstate, ret);
return ret;
}
static int sha256_mb_export(struct ahash_request *areq, void *out)
{
struct sha256_hash_ctx *sctx = ahash_request_ctx(areq);
memcpy(out, sctx, sizeof(*sctx));
return 0;
}
static int sha256_mb_import(struct ahash_request *areq, const void *in)
{
struct sha256_hash_ctx *sctx = ahash_request_ctx(areq);
memcpy(sctx, in, sizeof(*sctx));
return 0;
}
static int sha256_mb_async_init_tfm(struct crypto_tfm *tfm)
{
struct mcryptd_ahash *mcryptd_tfm;
struct sha256_mb_ctx *ctx = crypto_tfm_ctx(tfm);
struct mcryptd_hash_ctx *mctx;
mcryptd_tfm = mcryptd_alloc_ahash("__intel_sha256-mb",
CRYPTO_ALG_INTERNAL,
CRYPTO_ALG_INTERNAL);
if (IS_ERR(mcryptd_tfm))
return PTR_ERR(mcryptd_tfm);
mctx = crypto_ahash_ctx(&mcryptd_tfm->base);
mctx->alg_state = &sha256_mb_alg_state;
ctx->mcryptd_tfm = mcryptd_tfm;
crypto_ahash_set_reqsize(__crypto_ahash_cast(tfm),
sizeof(struct ahash_request) +
crypto_ahash_reqsize(&mcryptd_tfm->base));
return 0;
}
static void sha256_mb_async_exit_tfm(struct crypto_tfm *tfm)
{
struct sha256_mb_ctx *ctx = crypto_tfm_ctx(tfm);
mcryptd_free_ahash(ctx->mcryptd_tfm);
}
static int sha256_mb_areq_init_tfm(struct crypto_tfm *tfm)
{
crypto_ahash_set_reqsize(__crypto_ahash_cast(tfm),
sizeof(struct ahash_request) +
sizeof(struct sha256_hash_ctx));
return 0;
}
static void sha256_mb_areq_exit_tfm(struct crypto_tfm *tfm)
{
struct sha256_mb_ctx *ctx = crypto_tfm_ctx(tfm);
mcryptd_free_ahash(ctx->mcryptd_tfm);
}
static struct ahash_alg sha256_mb_areq_alg = {
.init = sha256_mb_init,
.update = sha256_mb_update,
.final = sha256_mb_final,
.finup = sha256_mb_finup,
.export = sha256_mb_export,
.import = sha256_mb_import,
.halg = {
.digestsize = SHA256_DIGEST_SIZE,
.statesize = sizeof(struct sha256_hash_ctx),
.base = {
.cra_name = "__sha256-mb",
.cra_driver_name = "__intel_sha256-mb",
.cra_priority = 100,
/*
* use ASYNC flag as some buffers in multi-buffer
* algo may not have completed before hashing thread
* sleep
*/
.cra_flags = CRYPTO_ALG_ASYNC |
CRYPTO_ALG_INTERNAL,
.cra_blocksize = SHA256_BLOCK_SIZE,
.cra_module = THIS_MODULE,
.cra_list = LIST_HEAD_INIT
(sha256_mb_areq_alg.halg.base.cra_list),
.cra_init = sha256_mb_areq_init_tfm,
.cra_exit = sha256_mb_areq_exit_tfm,
.cra_ctxsize = sizeof(struct sha256_hash_ctx),
}
}
};
static int sha256_mb_async_init(struct ahash_request *req)
{
struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
struct sha256_mb_ctx *ctx = crypto_ahash_ctx(tfm);
struct ahash_request *mcryptd_req = ahash_request_ctx(req);
struct mcryptd_ahash *mcryptd_tfm = ctx->mcryptd_tfm;
memcpy(mcryptd_req, req, sizeof(*req));
ahash_request_set_tfm(mcryptd_req, &mcryptd_tfm->base);
return crypto_ahash_init(mcryptd_req);
}
static int sha256_mb_async_update(struct ahash_request *req)
{
struct ahash_request *mcryptd_req = ahash_request_ctx(req);
struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
struct sha256_mb_ctx *ctx = crypto_ahash_ctx(tfm);
struct mcryptd_ahash *mcryptd_tfm = ctx->mcryptd_tfm;
memcpy(mcryptd_req, req, sizeof(*req));
ahash_request_set_tfm(mcryptd_req, &mcryptd_tfm->base);
return crypto_ahash_update(mcryptd_req);
}
static int sha256_mb_async_finup(struct ahash_request *req)
{
struct ahash_request *mcryptd_req = ahash_request_ctx(req);
struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
struct sha256_mb_ctx *ctx = crypto_ahash_ctx(tfm);
struct mcryptd_ahash *mcryptd_tfm = ctx->mcryptd_tfm;
memcpy(mcryptd_req, req, sizeof(*req));
ahash_request_set_tfm(mcryptd_req, &mcryptd_tfm->base);
return crypto_ahash_finup(mcryptd_req);
}
static int sha256_mb_async_final(struct ahash_request *req)
{
struct ahash_request *mcryptd_req = ahash_request_ctx(req);
struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
struct sha256_mb_ctx *ctx = crypto_ahash_ctx(tfm);
struct mcryptd_ahash *mcryptd_tfm = ctx->mcryptd_tfm;
memcpy(mcryptd_req, req, sizeof(*req));
ahash_request_set_tfm(mcryptd_req, &mcryptd_tfm->base);
return crypto_ahash_final(mcryptd_req);
}
static int sha256_mb_async_digest(struct ahash_request *req)
{
struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
struct sha256_mb_ctx *ctx = crypto_ahash_ctx(tfm);
struct ahash_request *mcryptd_req = ahash_request_ctx(req);
struct mcryptd_ahash *mcryptd_tfm = ctx->mcryptd_tfm;
memcpy(mcryptd_req, req, sizeof(*req));
ahash_request_set_tfm(mcryptd_req, &mcryptd_tfm->base);
return crypto_ahash_digest(mcryptd_req);
}
static int sha256_mb_async_export(struct ahash_request *req, void *out)
{
struct ahash_request *mcryptd_req = ahash_request_ctx(req);
struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
struct sha256_mb_ctx *ctx = crypto_ahash_ctx(tfm);
struct mcryptd_ahash *mcryptd_tfm = ctx->mcryptd_tfm;
memcpy(mcryptd_req, req, sizeof(*req));
ahash_request_set_tfm(mcryptd_req, &mcryptd_tfm->base);
return crypto_ahash_export(mcryptd_req, out);
}
static int sha256_mb_async_import(struct ahash_request *req, const void *in)
{
struct ahash_request *mcryptd_req = ahash_request_ctx(req);
struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
struct sha256_mb_ctx *ctx = crypto_ahash_ctx(tfm);
struct mcryptd_ahash *mcryptd_tfm = ctx->mcryptd_tfm;
struct crypto_ahash *child = mcryptd_ahash_child(mcryptd_tfm);
struct mcryptd_hash_request_ctx *rctx;
struct ahash_request *areq;
memcpy(mcryptd_req, req, sizeof(*req));
ahash_request_set_tfm(mcryptd_req, &mcryptd_tfm->base);
rctx = ahash_request_ctx(mcryptd_req);
areq = &rctx->areq;
ahash_request_set_tfm(areq, child);
ahash_request_set_callback(areq, CRYPTO_TFM_REQ_MAY_SLEEP,
rctx->complete, req);
return crypto_ahash_import(mcryptd_req, in);
}
static struct ahash_alg sha256_mb_async_alg = {
.init = sha256_mb_async_init,
.update = sha256_mb_async_update,
.final = sha256_mb_async_final,
.finup = sha256_mb_async_finup,
.export = sha256_mb_async_export,
.import = sha256_mb_async_import,
.digest = sha256_mb_async_digest,
.halg = {
.digestsize = SHA256_DIGEST_SIZE,
.statesize = sizeof(struct sha256_hash_ctx),
.base = {
.cra_name = "sha256",
.cra_driver_name = "sha256_mb",
/*
* Low priority, since with few concurrent hash requests
* this is extremely slow due to the flush delay. Users
* whose workloads would benefit from this can request
* it explicitly by driver name, or can increase its
* priority at runtime using NETLINK_CRYPTO.
*/
.cra_priority = 50,
.cra_flags = CRYPTO_ALG_ASYNC,
.cra_blocksize = SHA256_BLOCK_SIZE,
.cra_module = THIS_MODULE,
.cra_list = LIST_HEAD_INIT
(sha256_mb_async_alg.halg.base.cra_list),
.cra_init = sha256_mb_async_init_tfm,
.cra_exit = sha256_mb_async_exit_tfm,
.cra_ctxsize = sizeof(struct sha256_mb_ctx),
.cra_alignmask = 0,
},
},
};
static unsigned long sha256_mb_flusher(struct mcryptd_alg_cstate *cstate)
{
struct mcryptd_hash_request_ctx *rctx;
unsigned long cur_time;
unsigned long next_flush = 0;
struct sha256_hash_ctx *sha_ctx;
cur_time = jiffies;
while (!list_empty(&cstate->work_list)) {
rctx = list_entry(cstate->work_list.next,
struct mcryptd_hash_request_ctx, waiter);
if (time_before(cur_time, rctx->tag.expire))
break;
kernel_fpu_begin();
sha_ctx = (struct sha256_hash_ctx *)
sha256_ctx_mgr_flush(cstate->mgr);
kernel_fpu_end();
if (!sha_ctx) {
pr_err("sha256_mb error: nothing got"
" flushed for non-empty list\n");
break;
}
rctx = cast_hash_to_mcryptd_ctx(sha_ctx);
sha_finish_walk(&rctx, cstate, true);
sha_complete_job(rctx, cstate, 0);
}
if (!list_empty(&cstate->work_list)) {
rctx = list_entry(cstate->work_list.next,
struct mcryptd_hash_request_ctx, waiter);
/* get the hash context and then flush time */
next_flush = rctx->tag.expire;
mcryptd_arm_flusher(cstate, get_delay(next_flush));
}
return next_flush;
}
static int __init sha256_mb_mod_init(void)
{
int cpu;
int err;
struct mcryptd_alg_cstate *cpu_state;
/* check for dependent cpu features */
if (!boot_cpu_has(X86_FEATURE_AVX2) ||
!boot_cpu_has(X86_FEATURE_BMI2))
return -ENODEV;
/* initialize multibuffer structures */
sha256_mb_alg_state.alg_cstate = alloc_percpu
(struct mcryptd_alg_cstate);
sha256_job_mgr_init = sha256_mb_mgr_init_avx2;
sha256_job_mgr_submit = sha256_mb_mgr_submit_avx2;
sha256_job_mgr_flush = sha256_mb_mgr_flush_avx2;
sha256_job_mgr_get_comp_job = sha256_mb_mgr_get_comp_job_avx2;
if (!sha256_mb_alg_state.alg_cstate)
return -ENOMEM;
for_each_possible_cpu(cpu) {
cpu_state = per_cpu_ptr(sha256_mb_alg_state.alg_cstate, cpu);
cpu_state->next_flush = 0;
cpu_state->next_seq_num = 0;
cpu_state->flusher_engaged = false;
INIT_DELAYED_WORK(&cpu_state->flush, mcryptd_flusher);
cpu_state->cpu = cpu;
cpu_state->alg_state = &sha256_mb_alg_state;
cpu_state->mgr = kzalloc(sizeof(struct sha256_ctx_mgr),
GFP_KERNEL);
if (!cpu_state->mgr)
goto err2;
sha256_ctx_mgr_init(cpu_state->mgr);
INIT_LIST_HEAD(&cpu_state->work_list);
spin_lock_init(&cpu_state->work_lock);
}
sha256_mb_alg_state.flusher = &sha256_mb_flusher;
err = crypto_register_ahash(&sha256_mb_areq_alg);
if (err)
goto err2;
err = crypto_register_ahash(&sha256_mb_async_alg);
if (err)
goto err1;
return 0;
err1:
crypto_unregister_ahash(&sha256_mb_areq_alg);
err2:
for_each_possible_cpu(cpu) {
cpu_state = per_cpu_ptr(sha256_mb_alg_state.alg_cstate, cpu);
kfree(cpu_state->mgr);
}
free_percpu(sha256_mb_alg_state.alg_cstate);
return -ENODEV;
}
static void __exit sha256_mb_mod_fini(void)
{
int cpu;
struct mcryptd_alg_cstate *cpu_state;
crypto_unregister_ahash(&sha256_mb_async_alg);
crypto_unregister_ahash(&sha256_mb_areq_alg);
for_each_possible_cpu(cpu) {
cpu_state = per_cpu_ptr(sha256_mb_alg_state.alg_cstate, cpu);
kfree(cpu_state->mgr);
}
free_percpu(sha256_mb_alg_state.alg_cstate);
}
module_init(sha256_mb_mod_init);
module_exit(sha256_mb_mod_fini);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("SHA256 Secure Hash Algorithm, multi buffer accelerated");
MODULE_ALIAS_CRYPTO("sha256");
arch/x86/crypto/sha256-mb/sha256_mb_ctx.h deleted 100644 → 0
View file @ 820684cc
/*
* Header file for multi buffer SHA256 context
*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2016 Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* 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.
*
* Contact Information:
* Megha Dey <megha.dey@linux.intel.com>
*
* BSD LICENSE
*
* Copyright(c) 2016 Intel Corporation.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _SHA_MB_CTX_INTERNAL_H
#define _SHA_MB_CTX_INTERNAL_H
#include "sha256_mb_mgr.h"
#define HASH_UPDATE 0x00
#define HASH_LAST 0x01
#define HASH_DONE 0x02
#define HASH_FINAL 0x04
#define HASH_CTX_STS_IDLE 0x00
#define HASH_CTX_STS_PROCESSING 0x01
#define HASH_CTX_STS_LAST 0x02
#define HASH_CTX_STS_COMPLETE 0x04
enum hash_ctx_error {
HASH_CTX_ERROR_NONE = 0,
HASH_CTX_ERROR_INVALID_FLAGS = -1,
HASH_CTX_ERROR_ALREADY_PROCESSING = -2,
HASH_CTX_ERROR_ALREADY_COMPLETED = -3,
#ifdef HASH_CTX_DEBUG
HASH_CTX_ERROR_DEBUG_DIGEST_MISMATCH = -4,
#endif
};
#define hash_ctx_user_data(ctx) ((ctx)->user_data)
#define hash_ctx_digest(ctx) ((ctx)->job.result_digest)
#define hash_ctx_processing(ctx) ((ctx)->status & HASH_CTX_STS_PROCESSING)
#define hash_ctx_complete(ctx) ((ctx)->status == HASH_CTX_STS_COMPLETE)
#define hash_ctx_status(ctx) ((ctx)->status)
#define hash_ctx_error(ctx) ((ctx)->error)
#define hash_ctx_init(ctx) \
do { \
(ctx)->error = HASH_CTX_ERROR_NONE; \
(ctx)->status = HASH_CTX_STS_COMPLETE; \
} while (0)
/* Hash Constants and Typedefs */
#define SHA256_DIGEST_LENGTH 8
#define SHA256_LOG2_BLOCK_SIZE 6
#define SHA256_PADLENGTHFIELD_SIZE 8
#ifdef SHA_MB_DEBUG
#define assert(expr) \
do { \
if (unlikely(!(expr))) { \
printk(KERN_ERR "Assertion failed! %s,%s,%s,line=%d\n", \
#expr, __FILE__, __func__, __LINE__); \
} \
} while (0)
#else
#define assert(expr) do {} while (0)
#endif
struct sha256_ctx_mgr {
struct sha256_mb_mgr mgr;
};
/* typedef struct sha256_ctx_mgr sha256_ctx_mgr; */
struct sha256_hash_ctx {
/* Must be at struct offset 0 */
struct job_sha256 job;
/* status flag */
int status;
/* error flag */
int error;
uint64_t total_length;
const void *incoming_buffer;
uint32_t incoming_buffer_length;
uint8_t partial_block_buffer[SHA256_BLOCK_SIZE * 2];
uint32_t partial_block_buffer_length;
void *user_data;
};
#endif
arch/x86/crypto/sha256-mb/sha256_mb_mgr.h deleted 100644 → 0
View file @ 820684cc
/*
* Header file for multi buffer SHA256 algorithm manager
*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2016 Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* 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.
*
* Contact Information:
* Megha Dey <megha.dey@linux.intel.com>
*
* BSD LICENSE
*
* Copyright(c) 2016 Intel Corporation.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __SHA_MB_MGR_H
#define __SHA_MB_MGR_H
#include <linux/types.h>
#define NUM_SHA256_DIGEST_WORDS 8
enum job_sts { STS_UNKNOWN = 0,
STS_BEING_PROCESSED = 1,
STS_COMPLETED = 2,
STS_INTERNAL_ERROR = 3,
STS_ERROR = 4
};
struct job_sha256 {
u8 *buffer;
u32 len;
u32 result_digest[NUM_SHA256_DIGEST_WORDS] __aligned(32);
enum job_sts status;
void *user_data;
};
/* SHA256 out-of-order scheduler */
/* typedef uint32_t sha8_digest_array[8][8]; */
struct sha256_args_x8 {
uint32_t digest[8][8];
uint8_t *data_ptr[8];
};
struct sha256_lane_data {
struct job_sha256 *job_in_lane;
};
struct sha256_mb_mgr {
struct sha256_args_x8 args;
uint32_t lens[8];
/* each byte is index (0...7) of unused lanes */
uint64_t unused_lanes;
/* byte 4 is set to FF as a flag */
struct sha256_lane_data ldata[8];
};
#define SHA256_MB_MGR_NUM_LANES_AVX2 8
void sha256_mb_mgr_init_avx2(struct sha256_mb_mgr *state);
struct job_sha256 *sha256_mb_mgr_submit_avx2(struct sha256_mb_mgr *state,
struct job_sha256 *job);
struct job_sha256 *sha256_mb_mgr_flush_avx2(struct sha256_mb_mgr *state);
struct job_sha256 *sha256_mb_mgr_get_comp_job_avx2(struct sha256_mb_mgr *state);
#endif
arch/x86/crypto/sha256-mb/sha256_mb_mgr_datastruct.S deleted 100644 → 0
View file @ 820684cc
/*
* Header file for multi buffer SHA256 algorithm data structure
*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2016 Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* 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.
*
* Contact Information:
* Megha Dey <megha.dey@linux.intel.com>
*
* BSD LICENSE
*
* Copyright(c) 2016 Intel Corporation.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
# Macros for defining data structures
# Usage example
#START_FIELDS # JOB_AES
### name size align
#FIELD _plaintext, 8, 8 # pointer to plaintext
#FIELD _ciphertext, 8, 8 # pointer to ciphertext
#FIELD _IV, 16, 8 # IV
#FIELD _keys, 8, 8 # pointer to keys
#FIELD _len, 4, 4 # length in bytes
#FIELD _status, 4, 4 # status enumeration
#FIELD _user_data, 8, 8 # pointer to user data
#UNION _union, size1, align1, \
# size2, align2, \
# size3, align3, \
# ...
#END_FIELDS
#%assign _JOB_AES_size _FIELD_OFFSET
#%assign _JOB_AES_align _STRUCT_ALIGN
#########################################################################
# Alternate "struc-like" syntax:
# STRUCT job_aes2
# RES_Q .plaintext, 1
# RES_Q .ciphertext, 1
# RES_DQ .IV, 1
# RES_B .nested, _JOB_AES_SIZE, _JOB_AES_ALIGN
# RES_U .union, size1, align1, \
# size2, align2, \
# ...
# ENDSTRUCT
# # Following only needed if nesting
# %assign job_aes2_size _FIELD_OFFSET
# %assign job_aes2_align _STRUCT_ALIGN
#
# RES_* macros take a name, a count and an optional alignment.
# The count in in terms of the base size of the macro, and the
# default alignment is the base size.
# The macros are:
# Macro Base size
# RES_B 1
# RES_W 2
# RES_D 4
# RES_Q 8
# RES_DQ 16
# RES_Y 32
# RES_Z 64
#
# RES_U defines a union. It's arguments are a name and two or more
# pairs of "size, alignment"
#
# The two assigns are only needed if this structure is being nested
# within another. Even if the assigns are not done, one can still use
# STRUCT_NAME_size as the size of the structure.
#
# Note that for nesting, you still need to assign to STRUCT_NAME_size.
#
# The differences between this and using "struc" directly are that each
# type is implicitly aligned to its natural length (although this can be
# over-ridden with an explicit third parameter), and that the structure
# is padded at the end to its overall alignment.
#
#########################################################################
#ifndef _DATASTRUCT_ASM_
#define _DATASTRUCT_ASM_
#define SZ8 8*SHA256_DIGEST_WORD_SIZE
#define ROUNDS 64*SZ8
#define PTR_SZ 8
#define SHA256_DIGEST_WORD_SIZE 4
#define MAX_SHA256_LANES 8
#define SHA256_DIGEST_WORDS 8
#define SHA256_DIGEST_ROW_SIZE (MAX_SHA256_LANES * SHA256_DIGEST_WORD_SIZE)
#define SHA256_DIGEST_SIZE (SHA256_DIGEST_ROW_SIZE * SHA256_DIGEST_WORDS)
#define SHA256_BLK_SZ 64
# START_FIELDS
.macro START_FIELDS
_FIELD_OFFSET = 0
_STRUCT_ALIGN = 0
.endm
# FIELD name size align
.macro FIELD name size align
_FIELD_OFFSET = (_FIELD_OFFSET + (\align) - 1) & (~ ((\align)-1))
\name = _FIELD_OFFSET
_FIELD_OFFSET = _FIELD_OFFSET + (\size)
.if (\align > _STRUCT_ALIGN)
_STRUCT_ALIGN = \align
.endif
.endm
# END_FIELDS
.macro END_FIELDS
_FIELD_OFFSET = (_FIELD_OFFSET + _STRUCT_ALIGN-1) & (~ (_STRUCT_ALIGN-1))
.endm
########################################################################
.macro STRUCT p1
START_FIELDS
.struc \p1
.endm
.macro ENDSTRUCT
tmp = _FIELD_OFFSET
END_FIELDS
tmp = (_FIELD_OFFSET - %%tmp)
.if (tmp > 0)
.lcomm tmp
.endif
.endstruc
.endm
## RES_int name size align
.macro RES_int p1 p2 p3
name = \p1
size = \p2
align = .\p3
_FIELD_OFFSET = (_FIELD_OFFSET + (align) - 1) & (~ ((align)-1))
.align align
.lcomm name size
_FIELD_OFFSET = _FIELD_OFFSET + (size)
.if (align > _STRUCT_ALIGN)
_STRUCT_ALIGN = align
.endif
.endm
# macro RES_B name, size [, align]
.macro RES_B _name, _size, _align=1
RES_int _name _size _align
.endm
# macro RES_W name, size [, align]
.macro RES_W _name, _size, _align=2
RES_int _name 2*(_size) _align
.endm
# macro RES_D name, size [, align]
.macro RES_D _name, _size, _align=4
RES_int _name 4*(_size) _align
.endm
# macro RES_Q name, size [, align]
.macro RES_Q _name, _size, _align=8
RES_int _name 8*(_size) _align
.endm
# macro RES_DQ name, size [, align]
.macro RES_DQ _name, _size, _align=16
RES_int _name 16*(_size) _align
.endm
# macro RES_Y name, size [, align]
.macro RES_Y _name, _size, _align=32
RES_int _name 32*(_size) _align
.endm
# macro RES_Z name, size [, align]
.macro RES_Z _name, _size, _align=64
RES_int _name 64*(_size) _align
.endm
#endif
########################################################################
#### Define SHA256 Out Of Order Data Structures
########################################################################
START_FIELDS # LANE_DATA
### name size align
FIELD _job_in_lane, 8, 8 # pointer to job object
END_FIELDS
_LANE_DATA_size = _FIELD_OFFSET
_LANE_DATA_align = _STRUCT_ALIGN
########################################################################
START_FIELDS # SHA256_ARGS_X4
### name size align
FIELD _digest, 4*8*8, 4 # transposed digest
FIELD _data_ptr, 8*8, 8 # array of pointers to data
END_FIELDS
_SHA256_ARGS_X4_size = _FIELD_OFFSET
_SHA256_ARGS_X4_align = _STRUCT_ALIGN
_SHA256_ARGS_X8_size = _FIELD_OFFSET
_SHA256_ARGS_X8_align = _STRUCT_ALIGN
#######################################################################
START_FIELDS # MB_MGR
### name size align
FIELD _args, _SHA256_ARGS_X4_size, _SHA256_ARGS_X4_align
FIELD _lens, 4*8, 8
FIELD _unused_lanes, 8, 8
FIELD _ldata, _LANE_DATA_size*8, _LANE_DATA_align
END_FIELDS
_MB_MGR_size = _FIELD_OFFSET
_MB_MGR_align = _STRUCT_ALIGN
_args_digest = _args + _digest
_args_data_ptr = _args + _data_ptr
#######################################################################
START_FIELDS #STACK_FRAME
### name size align
FIELD _data, 16*SZ8, 1 # transposed digest
FIELD _digest, 8*SZ8, 1 # array of pointers to data
FIELD _ytmp, 4*SZ8, 1
FIELD _rsp, 8, 1
END_FIELDS
_STACK_FRAME_size = _FIELD_OFFSET
_STACK_FRAME_align = _STRUCT_ALIGN
#######################################################################
########################################################################
#### Define constants
########################################################################
#define STS_UNKNOWN 0
#define STS_BEING_PROCESSED 1
#define STS_COMPLETED 2
########################################################################
#### Define JOB_SHA256 structure
########################################################################
START_FIELDS # JOB_SHA256
### name size align
FIELD _buffer, 8, 8 # pointer to buffer
FIELD _len, 8, 8 # length in bytes
FIELD _result_digest, 8*4, 32 # Digest (output)
FIELD _status, 4, 4
FIELD _user_data, 8, 8
END_FIELDS
_JOB_SHA256_size = _FIELD_OFFSET
_JOB_SHA256_align = _STRUCT_ALIGN
arch/x86/crypto/sha256-mb/sha256_mb_mgr_flush_avx2.S deleted 100644 → 0
View file @ 820684cc
/*
* Flush routine for SHA256 multibuffer
*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2016 Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* 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.
*
* Contact Information:
* Megha Dey <megha.dey@linux.intel.com>
*
* BSD LICENSE
*
* Copyright(c) 2016 Intel Corporation.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <linux/linkage.h>
#include <asm/frame.h>
#include "sha256_mb_mgr_datastruct.S"
.extern sha256_x8_avx2
#LINUX register definitions
#define arg1 %rdi
#define arg2 %rsi
# Common register definitions
#define state arg1
#define job arg2
#define len2 arg2
# idx must be a register not clobberred by sha1_mult
#define idx %r8
#define DWORD_idx %r8d
#define unused_lanes %rbx
#define lane_data %rbx
#define tmp2 %rbx
#define tmp2_w %ebx
#define job_rax %rax
#define tmp1 %rax
#define size_offset %rax
#define tmp %rax
#define start_offset %rax
#define tmp3 %arg1
#define extra_blocks %arg2
#define p %arg2
.macro LABEL prefix n
\prefix\n\():
.endm
.macro JNE_SKIP i
jne skip_\i
.endm
.altmacro
.macro SET_OFFSET _offset
offset = \_offset
.endm
.noaltmacro
# JOB_SHA256* sha256_mb_mgr_flush_avx2(MB_MGR *state)
# arg 1 : rcx : state
ENTRY(sha256_mb_mgr_flush_avx2)
FRAME_BEGIN
push %rbx
# If bit (32+3) is set, then all lanes are empty
mov _unused_lanes(state), unused_lanes
bt $32+3, unused_lanes
jc return_null
# find a lane with a non-null job
xor idx, idx
offset = (_ldata + 1 * _LANE_DATA_size + _job_in_lane)
cmpq $0, offset(state)
cmovne one(%rip), idx
offset = (_ldata + 2 * _LANE_DATA_size + _job_in_lane)
cmpq $0, offset(state)
cmovne two(%rip), idx
offset = (_ldata + 3 * _LANE_DATA_size + _job_in_lane)
cmpq $0, offset(state)
cmovne three(%rip), idx
offset = (_ldata + 4 * _LANE_DATA_size + _job_in_lane)
cmpq $0, offset(state)
cmovne four(%rip), idx
offset = (_ldata + 5 * _LANE_DATA_size + _job_in_lane)
cmpq $0, offset(state)
cmovne five(%rip), idx
offset = (_ldata + 6 * _LANE_DATA_size + _job_in_lane)
cmpq $0, offset(state)
cmovne six(%rip), idx
offset = (_ldata + 7 * _LANE_DATA_size + _job_in_lane)
cmpq $0, offset(state)
cmovne seven(%rip), idx
# copy idx to empty lanes
copy_lane_data:
offset = (_args + _data_ptr)
mov offset(state,idx,8), tmp
I = 0
.rep 8
offset = (_ldata + I * _LANE_DATA_size + _job_in_lane)
cmpq $0, offset(state)
.altmacro
JNE_SKIP %I
offset = (_args + _data_ptr + 8*I)
mov tmp, offset(state)
offset = (_lens + 4*I)
movl $0xFFFFFFFF, offset(state)
LABEL skip_ %I
I = (I+1)
.noaltmacro
.endr
# Find min length
vmovdqu _lens+0*16(state), %xmm0
vmovdqu _lens+1*16(state), %xmm1
vpminud %xmm1, %xmm0, %xmm2 # xmm2 has {D,C,B,A}
vpalignr $8, %xmm2, %xmm3, %xmm3 # xmm3 has {x,x,D,C}
vpminud %xmm3, %xmm2, %xmm2 # xmm2 has {x,x,E,F}
vpalignr $4, %xmm2, %xmm3, %xmm3 # xmm3 has {x,x,x,E}
vpminud %xmm3, %xmm2, %xmm2 # xmm2 has min val in low dword
vmovd %xmm2, DWORD_idx
mov idx, len2
and $0xF, idx
shr $4, len2
jz len_is_0
vpand clear_low_nibble(%rip), %xmm2, %xmm2
vpshufd $0, %xmm2, %xmm2
vpsubd %xmm2, %xmm0, %xmm0
vpsubd %xmm2, %xmm1, %xmm1
vmovdqu %xmm0, _lens+0*16(state)
vmovdqu %xmm1, _lens+1*16(state)
# "state" and "args" are the same address, arg1
# len is arg2
call sha256_x8_avx2
# state and idx are intact
len_is_0:
# process completed job "idx"
imul $_LANE_DATA_size, idx, lane_data
lea _ldata(state, lane_data), lane_data
mov _job_in_lane(lane_data), job_rax
movq $0, _job_in_lane(lane_data)
movl $STS_COMPLETED, _status(job_rax)
mov _unused_lanes(state), unused_lanes
shl $4, unused_lanes
or idx, unused_lanes
mov unused_lanes, _unused_lanes(state)
movl $0xFFFFFFFF, _lens(state,idx,4)
vmovd _args_digest(state , idx, 4) , %xmm0
vpinsrd $1, _args_digest+1*32(state, idx, 4), %xmm0, %xmm0
vpinsrd $2, _args_digest+2*32(state, idx, 4), %xmm0, %xmm0
vpinsrd $3, _args_digest+3*32(state, idx, 4), %xmm0, %xmm0
vmovd _args_digest+4*32(state, idx, 4), %xmm1
vpinsrd $1, _args_digest+5*32(state, idx, 4), %xmm1, %xmm1
vpinsrd $2, _args_digest+6*32(state, idx, 4), %xmm1, %xmm1
vpinsrd $3, _args_digest+7*32(state, idx, 4), %xmm1, %xmm1
vmovdqu %xmm0, _result_digest(job_rax)
offset = (_result_digest + 1*16)
vmovdqu %xmm1, offset(job_rax)
return:
pop %rbx
FRAME_END
ret
return_null:
xor job_rax, job_rax
jmp return
ENDPROC(sha256_mb_mgr_flush_avx2)
##############################################################################
.align 16
ENTRY(sha256_mb_mgr_get_comp_job_avx2)
push %rbx
## if bit 32+3 is set, then all lanes are empty
mov _unused_lanes(state), unused_lanes
bt $(32+3), unused_lanes
jc .return_null
# Find min length
vmovdqu _lens(state), %xmm0
vmovdqu _lens+1*16(state), %xmm1
vpminud %xmm1, %xmm0, %xmm2 # xmm2 has {D,C,B,A}
vpalignr $8, %xmm2, %xmm3, %xmm3 # xmm3 has {x,x,D,C}
vpminud %xmm3, %xmm2, %xmm2 # xmm2 has {x,x,E,F}
vpalignr $4, %xmm2, %xmm3, %xmm3 # xmm3 has {x,x,x,E}
vpminud %xmm3, %xmm2, %xmm2 # xmm2 has min val in low dword
vmovd %xmm2, DWORD_idx
test $~0xF, idx
jnz .return_null
# process completed job "idx"
imul $_LANE_DATA_size, idx, lane_data
lea _ldata(state, lane_data), lane_data
mov _job_in_lane(lane_data), job_rax
movq $0, _job_in_lane(lane_data)
movl $STS_COMPLETED, _status(job_rax)
mov _unused_lanes(state), unused_lanes
shl $4, unused_lanes
or idx, unused_lanes
mov unused_lanes, _unused_lanes(state)
movl $0xFFFFFFFF, _lens(state, idx, 4)
vmovd _args_digest(state, idx, 4), %xmm0
vpinsrd $1, _args_digest+1*32(state, idx, 4), %xmm0, %xmm0
vpinsrd $2, _args_digest+2*32(state, idx, 4), %xmm0, %xmm0
vpinsrd $3, _args_digest+3*32(state, idx, 4), %xmm0, %xmm0
vmovd _args_digest+4*32(state, idx, 4), %xmm1
vpinsrd $1, _args_digest+5*32(state, idx, 4), %xmm1, %xmm1
vpinsrd $2, _args_digest+6*32(state, idx, 4), %xmm1, %xmm1
vpinsrd $3, _args_digest+7*32(state, idx, 4), %xmm1, %xmm1
vmovdqu %xmm0, _result_digest(job_rax)
offset = (_result_digest + 1*16)
vmovdqu %xmm1, offset(job_rax)
pop %rbx
ret
.return_null:
xor job_rax, job_rax
pop %rbx
ret
ENDPROC(sha256_mb_mgr_get_comp_job_avx2)
.section .rodata.cst16.clear_low_nibble, "aM", @progbits, 16
.align 16
clear_low_nibble:
.octa 0x000000000000000000000000FFFFFFF0
.section .rodata.cst8, "aM", @progbits, 8
.align 8
one:
.quad 1
two:
.quad 2
three:
.quad 3
four:
.quad 4
five:
.quad 5
six:
.quad 6
seven:
.quad 7
arch/x86/crypto/sha256-mb/sha256_mb_mgr_init_avx2.c deleted 100644 → 0
View file @ 820684cc
/*
* Initialization code for multi buffer SHA256 algorithm for AVX2
*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2016 Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* 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.
*
* Contact Information:
* Megha Dey <megha.dey@linux.intel.com>
*
* BSD LICENSE
*
* Copyright(c) 2016 Intel Corporation.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "sha256_mb_mgr.h"
void sha256_mb_mgr_init_avx2(struct sha256_mb_mgr *state)
{
unsigned int j;
state->unused_lanes = 0xF76543210ULL;
for (j = 0; j < 8; j++) {
state->lens[j] = 0xFFFFFFFF;
state->ldata[j].job_in_lane = NULL;
}
}
arch/x86/crypto/sha256-mb/sha256_mb_mgr_submit_avx2.S deleted 100644 → 0
View file @ 820684cc
/*
* Buffer submit code for multi buffer SHA256 algorithm
*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2016 Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* 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.
*
* Contact Information:
* Megha Dey <megha.dey@linux.intel.com>
*
* BSD LICENSE
*
* Copyright(c) 2016 Intel Corporation.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <linux/linkage.h>
#include <asm/frame.h>
#include "sha256_mb_mgr_datastruct.S"
.extern sha256_x8_avx2
# LINUX register definitions
arg1 = %rdi
arg2 = %rsi
size_offset = %rcx
tmp2 = %rcx
extra_blocks = %rdx
# Common definitions
#define state arg1
#define job %rsi
#define len2 arg2
#define p2 arg2
# idx must be a register not clobberred by sha1_x8_avx2
idx = %r8
DWORD_idx = %r8d
last_len = %r8
p = %r11
start_offset = %r11
unused_lanes = %rbx
BYTE_unused_lanes = %bl
job_rax = %rax
len = %rax
DWORD_len = %eax
lane = %r12
tmp3 = %r12
tmp = %r9
DWORD_tmp = %r9d
lane_data = %r10
# JOB* sha256_mb_mgr_submit_avx2(MB_MGR *state, JOB_SHA256 *job)
# arg 1 : rcx : state
# arg 2 : rdx : job
ENTRY(sha256_mb_mgr_submit_avx2)
FRAME_BEGIN
push %rbx
push %r12
mov _unused_lanes(state), unused_lanes
mov unused_lanes, lane
and $0xF, lane
shr $4, unused_lanes
imul $_LANE_DATA_size, lane, lane_data
movl $STS_BEING_PROCESSED, _status(job)
lea _ldata(state, lane_data), lane_data
mov unused_lanes, _unused_lanes(state)
movl _len(job), DWORD_len
mov job, _job_in_lane(lane_data)
shl $4, len
or lane, len
movl DWORD_len, _lens(state , lane, 4)
# Load digest words from result_digest
vmovdqu _result_digest(job), %xmm0
vmovdqu _result_digest+1*16(job), %xmm1
vmovd %xmm0, _args_digest(state, lane, 4)
vpextrd $1, %xmm0, _args_digest+1*32(state , lane, 4)
vpextrd $2, %xmm0, _args_digest+2*32(state , lane, 4)
vpextrd $3, %xmm0, _args_digest+3*32(state , lane, 4)
vmovd %xmm1, _args_digest+4*32(state , lane, 4)
vpextrd $1, %xmm1, _args_digest+5*32(state , lane, 4)
vpextrd $2, %xmm1, _args_digest+6*32(state , lane, 4)
vpextrd $3, %xmm1, _args_digest+7*32(state , lane, 4)
mov _buffer(job), p
mov p, _args_data_ptr(state, lane, 8)
cmp $0xF, unused_lanes
jne return_null
start_loop:
# Find min length
vmovdqa _lens(state), %xmm0
vmovdqa _lens+1*16(state), %xmm1
vpminud %xmm1, %xmm0, %xmm2 # xmm2 has {D,C,B,A}
vpalignr $8, %xmm2, %xmm3, %xmm3 # xmm3 has {x,x,D,C}
vpminud %xmm3, %xmm2, %xmm2 # xmm2 has {x,x,E,F}
vpalignr $4, %xmm2, %xmm3, %xmm3 # xmm3 has {x,x,x,E}
vpminud %xmm3, %xmm2, %xmm2 # xmm2 has min val in low dword
vmovd %xmm2, DWORD_idx
mov idx, len2
and $0xF, idx
shr $4, len2
jz len_is_0
vpand clear_low_nibble(%rip), %xmm2, %xmm2
vpshufd $0, %xmm2, %xmm2
vpsubd %xmm2, %xmm0, %xmm0
vpsubd %xmm2, %xmm1, %xmm1
vmovdqa %xmm0, _lens + 0*16(state)
vmovdqa %xmm1, _lens + 1*16(state)
# "state" and "args" are the same address, arg1
# len is arg2
call sha256_x8_avx2
# state and idx are intact
len_is_0:
# process completed job "idx"
imul $_LANE_DATA_size, idx, lane_data
lea _ldata(state, lane_data), lane_data
mov _job_in_lane(lane_data), job_rax
mov _unused_lanes(state), unused_lanes
movq $0, _job_in_lane(lane_data)
movl $STS_COMPLETED, _status(job_rax)
shl $4, unused_lanes
or idx, unused_lanes
mov unused_lanes, _unused_lanes(state)
movl $0xFFFFFFFF, _lens(state,idx,4)
vmovd _args_digest(state, idx, 4), %xmm0
vpinsrd $1, _args_digest+1*32(state , idx, 4), %xmm0, %xmm0
vpinsrd $2, _args_digest+2*32(state , idx, 4), %xmm0, %xmm0
vpinsrd $3, _args_digest+3*32(state , idx, 4), %xmm0, %xmm0
vmovd _args_digest+4*32(state, idx, 4), %xmm1
vpinsrd $1, _args_digest+5*32(state , idx, 4), %xmm1, %xmm1
vpinsrd $2, _args_digest+6*32(state , idx, 4), %xmm1, %xmm1
vpinsrd $3, _args_digest+7*32(state , idx, 4), %xmm1, %xmm1
vmovdqu %xmm0, _result_digest(job_rax)
vmovdqu %xmm1, _result_digest+1*16(job_rax)
return:
pop %r12
pop %rbx
FRAME_END
ret
return_null:
xor job_rax, job_rax
jmp return
ENDPROC(sha256_mb_mgr_submit_avx2)
.section .rodata.cst16.clear_low_nibble, "aM", @progbits, 16
.align 16
clear_low_nibble:
.octa 0x000000000000000000000000FFFFFFF0
arch/x86/crypto/sha256-mb/sha256_x8_avx2.S deleted 100644 → 0
View file @ 820684cc
/*
* Multi-buffer SHA256 algorithm hash compute routine
*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2016 Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* 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.
*
* Contact Information:
* Megha Dey <megha.dey@linux.intel.com>
*
* BSD LICENSE
*
* Copyright(c) 2016 Intel Corporation.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <linux/linkage.h>
#include "sha256_mb_mgr_datastruct.S"
## code to compute oct SHA256 using SSE-256
## outer calling routine takes care of save and restore of XMM registers
## Logic designed/laid out by JDG
## Function clobbers: rax, rcx, rdx, rbx, rsi, rdi, r9-r15; %ymm0-15
## Linux clobbers: rax rbx rcx rdx rsi r9 r10 r11 r12 r13 r14 r15
## Linux preserves: rdi rbp r8
##
## clobbers %ymm0-15
arg1 = %rdi
arg2 = %rsi
reg3 = %rcx
reg4 = %rdx
# Common definitions
STATE = arg1
INP_SIZE = arg2
IDX = %rax
ROUND = %rbx
TBL = reg3
inp0 = %r9
inp1 = %r10
inp2 = %r11
inp3 = %r12
inp4 = %r13
inp5 = %r14
inp6 = %r15
inp7 = reg4
a = %ymm0
b = %ymm1
c = %ymm2
d = %ymm3
e = %ymm4
f = %ymm5
g = %ymm6
h = %ymm7
T1 = %ymm8
a0 = %ymm12
a1 = %ymm13
a2 = %ymm14
TMP = %ymm15
TMP0 = %ymm6
TMP1 = %ymm7
TT0 = %ymm8
TT1 = %ymm9
TT2 = %ymm10
TT3 = %ymm11
TT4 = %ymm12
TT5 = %ymm13
TT6 = %ymm14
TT7 = %ymm15
# Define stack usage
# Assume stack aligned to 32 bytes before call
# Therefore FRAMESZ mod 32 must be 32-8 = 24
#define FRAMESZ 0x388
#define VMOVPS vmovups
# TRANSPOSE8 r0, r1, r2, r3, r4, r5, r6, r7, t0, t1
# "transpose" data in {r0...r7} using temps {t0...t1}
# Input looks like: {r0 r1 r2 r3 r4 r5 r6 r7}
# r0 = {a7 a6 a5 a4 a3 a2 a1 a0}
# r1 = {b7 b6 b5 b4 b3 b2 b1 b0}
# r2 = {c7 c6 c5 c4 c3 c2 c1 c0}
# r3 = {d7 d6 d5 d4 d3 d2 d1 d0}
# r4 = {e7 e6 e5 e4 e3 e2 e1 e0}
# r5 = {f7 f6 f5 f4 f3 f2 f1 f0}
# r6 = {g7 g6 g5 g4 g3 g2 g1 g0}
# r7 = {h7 h6 h5 h4 h3 h2 h1 h0}
#
# Output looks like: {r0 r1 r2 r3 r4 r5 r6 r7}
# r0 = {h0 g0 f0 e0 d0 c0 b0 a0}
# r1 = {h1 g1 f1 e1 d1 c1 b1 a1}
# r2 = {h2 g2 f2 e2 d2 c2 b2 a2}
# r3 = {h3 g3 f3 e3 d3 c3 b3 a3}
# r4 = {h4 g4 f4 e4 d4 c4 b4 a4}
# r5 = {h5 g5 f5 e5 d5 c5 b5 a5}
# r6 = {h6 g6 f6 e6 d6 c6 b6 a6}
# r7 = {h7 g7 f7 e7 d7 c7 b7 a7}
#
.macro TRANSPOSE8 r0 r1 r2 r3 r4 r5 r6 r7 t0 t1
# process top half (r0..r3) {a...d}
vshufps $0x44, \r1, \r0, \t0 # t0 = {b5 b4 a5 a4 b1 b0 a1 a0}
vshufps $0xEE, \r1, \r0, \r0 # r0 = {b7 b6 a7 a6 b3 b2 a3 a2}
vshufps $0x44, \r3, \r2, \t1 # t1 = {d5 d4 c5 c4 d1 d0 c1 c0}
vshufps $0xEE, \r3, \r2, \r2 # r2 = {d7 d6 c7 c6 d3 d2 c3 c2}
vshufps $0xDD, \t1, \t0, \r3 # r3 = {d5 c5 b5 a5 d1 c1 b1 a1}
vshufps $0x88, \r2, \r0, \r1 # r1 = {d6 c6 b6 a6 d2 c2 b2 a2}
vshufps $0xDD, \r2, \r0, \r0 # r0 = {d7 c7 b7 a7 d3 c3 b3 a3}
vshufps $0x88, \t1, \t0, \t0 # t0 = {d4 c4 b4 a4 d0 c0 b0 a0}
# use r2 in place of t0
# process bottom half (r4..r7) {e...h}
vshufps $0x44, \r5, \r4, \r2 # r2 = {f5 f4 e5 e4 f1 f0 e1 e0}
vshufps $0xEE, \r5, \r4, \r4 # r4 = {f7 f6 e7 e6 f3 f2 e3 e2}
vshufps $0x44, \r7, \r6, \t1 # t1 = {h5 h4 g5 g4 h1 h0 g1 g0}
vshufps $0xEE, \r7, \r6, \r6 # r6 = {h7 h6 g7 g6 h3 h2 g3 g2}
vshufps $0xDD, \t1, \r2, \r7 # r7 = {h5 g5 f5 e5 h1 g1 f1 e1}
vshufps $0x88, \r6, \r4, \r5 # r5 = {h6 g6 f6 e6 h2 g2 f2 e2}
vshufps $0xDD, \r6, \r4, \r4 # r4 = {h7 g7 f7 e7 h3 g3 f3 e3}
vshufps $0x88, \t1, \r2, \t1 # t1 = {h4 g4 f4 e4 h0 g0 f0 e0}
vperm2f128 $0x13, \r1, \r5, \r6 # h6...a6
vperm2f128 $0x02, \r1, \r5, \r2 # h2...a2
vperm2f128 $0x13, \r3, \r7, \r5 # h5...a5
vperm2f128 $0x02, \r3, \r7, \r1 # h1...a1
vperm2f128 $0x13, \r0, \r4, \r7 # h7...a7
vperm2f128 $0x02, \r0, \r4, \r3 # h3...a3
vperm2f128 $0x13, \t0, \t1, \r4 # h4...a4
vperm2f128 $0x02, \t0, \t1, \r0 # h0...a0
.endm
.macro ROTATE_ARGS
TMP_ = h
h = g
g = f
f = e
e = d
d = c
c = b
b = a
a = TMP_
.endm
.macro _PRORD reg imm tmp
vpslld $(32-\imm),\reg,\tmp
vpsrld $\imm,\reg, \reg
vpor \tmp,\reg, \reg
.endm
# PRORD_nd reg, imm, tmp, src
.macro _PRORD_nd reg imm tmp src
vpslld $(32-\imm), \src, \tmp
vpsrld $\imm, \src, \reg
vpor \tmp, \reg, \reg
.endm
# PRORD dst/src, amt
.macro PRORD reg imm
_PRORD \reg,\imm,TMP
.endm
# PRORD_nd dst, src, amt
.macro PRORD_nd reg tmp imm
_PRORD_nd \reg, \imm, TMP, \tmp
.endm
# arguments passed implicitly in preprocessor symbols i, a...h
.macro ROUND_00_15 _T1 i
PRORD_nd a0,e,5 # sig1: a0 = (e >> 5)
vpxor g, f, a2 # ch: a2 = f^g
vpand e,a2, a2 # ch: a2 = (f^g)&e
vpxor g, a2, a2 # a2 = ch
PRORD_nd a1,e,25 # sig1: a1 = (e >> 25)
vmovdqu \_T1,(SZ8*(\i & 0xf))(%rsp)
vpaddd (TBL,ROUND,1), \_T1, \_T1 # T1 = W + K
vpxor e,a0, a0 # sig1: a0 = e ^ (e >> 5)
PRORD a0, 6 # sig1: a0 = (e >> 6) ^ (e >> 11)
vpaddd a2, h, h # h = h + ch
PRORD_nd a2,a,11 # sig0: a2 = (a >> 11)
vpaddd \_T1,h, h # h = h + ch + W + K
vpxor a1, a0, a0 # a0 = sigma1
PRORD_nd a1,a,22 # sig0: a1 = (a >> 22)
vpxor c, a, \_T1 # maj: T1 = a^c
add $SZ8, ROUND # ROUND++
vpand b, \_T1, \_T1 # maj: T1 = (a^c)&b
vpaddd a0, h, h
vpaddd h, d, d
vpxor a, a2, a2 # sig0: a2 = a ^ (a >> 11)
PRORD a2,2 # sig0: a2 = (a >> 2) ^ (a >> 13)
vpxor a1, a2, a2 # a2 = sig0
vpand c, a, a1 # maj: a1 = a&c
vpor \_T1, a1, a1 # a1 = maj
vpaddd a1, h, h # h = h + ch + W + K + maj
vpaddd a2, h, h # h = h + ch + W + K + maj + sigma0
ROTATE_ARGS
.endm
# arguments passed implicitly in preprocessor symbols i, a...h
.macro ROUND_16_XX _T1 i
vmovdqu (SZ8*((\i-15)&0xf))(%rsp), \_T1
vmovdqu (SZ8*((\i-2)&0xf))(%rsp), a1
vmovdqu \_T1, a0
PRORD \_T1,11
vmovdqu a1, a2
PRORD a1,2
vpxor a0, \_T1, \_T1
PRORD \_T1, 7
vpxor a2, a1, a1
PRORD a1, 17
vpsrld $3, a0, a0
vpxor a0, \_T1, \_T1
vpsrld $10, a2, a2
vpxor a2, a1, a1
vpaddd (SZ8*((\i-16)&0xf))(%rsp), \_T1, \_T1
vpaddd (SZ8*((\i-7)&0xf))(%rsp), a1, a1
vpaddd a1, \_T1, \_T1
ROUND_00_15 \_T1,\i
.endm
# SHA256_ARGS:
# UINT128 digest[8]; // transposed digests
# UINT8 *data_ptr[4];
# void sha256_x8_avx2(SHA256_ARGS *args, UINT64 bytes);
# arg 1 : STATE : pointer to array of pointers to input data
# arg 2 : INP_SIZE : size of input in blocks
# general registers preserved in outer calling routine
# outer calling routine saves all the XMM registers
# save rsp, allocate 32-byte aligned for local variables
ENTRY(sha256_x8_avx2)
# save callee-saved clobbered registers to comply with C function ABI
push %r12
push %r13
push %r14
push %r15
mov %rsp, IDX
sub $FRAMESZ, %rsp
and $~0x1F, %rsp
mov IDX, _rsp(%rsp)
# Load the pre-transposed incoming digest.
vmovdqu 0*SHA256_DIGEST_ROW_SIZE(STATE),a
vmovdqu 1*SHA256_DIGEST_ROW_SIZE(STATE),b
vmovdqu 2*SHA256_DIGEST_ROW_SIZE(STATE),c
vmovdqu 3*SHA256_DIGEST_ROW_SIZE(STATE),d
vmovdqu 4*SHA256_DIGEST_ROW_SIZE(STATE),e
vmovdqu 5*SHA256_DIGEST_ROW_SIZE(STATE),f
vmovdqu 6*SHA256_DIGEST_ROW_SIZE(STATE),g
vmovdqu 7*SHA256_DIGEST_ROW_SIZE(STATE),h
lea K256_8(%rip),TBL
# load the address of each of the 4 message lanes
# getting ready to transpose input onto stack
mov _args_data_ptr+0*PTR_SZ(STATE),inp0
mov _args_data_ptr+1*PTR_SZ(STATE),inp1
mov _args_data_ptr+2*PTR_SZ(STATE),inp2
mov _args_data_ptr+3*PTR_SZ(STATE),inp3
mov _args_data_ptr+4*PTR_SZ(STATE),inp4
mov _args_data_ptr+5*PTR_SZ(STATE),inp5
mov _args_data_ptr+6*PTR_SZ(STATE),inp6
mov _args_data_ptr+7*PTR_SZ(STATE),inp7
xor IDX, IDX
lloop:
xor ROUND, ROUND
# save old digest
vmovdqu a, _digest(%rsp)
vmovdqu b, _digest+1*SZ8(%rsp)
vmovdqu c, _digest+2*SZ8(%rsp)
vmovdqu d, _digest+3*SZ8(%rsp)
vmovdqu e, _digest+4*SZ8(%rsp)
vmovdqu f, _digest+5*SZ8(%rsp)
vmovdqu g, _digest+6*SZ8(%rsp)
vmovdqu h, _digest+7*SZ8(%rsp)
i = 0
.rep 2
VMOVPS i*32(inp0, IDX), TT0
VMOVPS i*32(inp1, IDX), TT1
VMOVPS i*32(inp2, IDX), TT2
VMOVPS i*32(inp3, IDX), TT3
VMOVPS i*32(inp4, IDX), TT4
VMOVPS i*32(inp5, IDX), TT5
VMOVPS i*32(inp6, IDX), TT6
VMOVPS i*32(inp7, IDX), TT7
vmovdqu g, _ytmp(%rsp)
vmovdqu h, _ytmp+1*SZ8(%rsp)
TRANSPOSE8 TT0, TT1, TT2, TT3, TT4, TT5, TT6, TT7, TMP0, TMP1
vmovdqu PSHUFFLE_BYTE_FLIP_MASK(%rip), TMP1
vmovdqu _ytmp(%rsp), g
vpshufb TMP1, TT0, TT0
vpshufb TMP1, TT1, TT1
vpshufb TMP1, TT2, TT2
vpshufb TMP1, TT3, TT3
vpshufb TMP1, TT4, TT4
vpshufb TMP1, TT5, TT5
vpshufb TMP1, TT6, TT6
vpshufb TMP1, TT7, TT7
vmovdqu _ytmp+1*SZ8(%rsp), h
vmovdqu TT4, _ytmp(%rsp)
vmovdqu TT5, _ytmp+1*SZ8(%rsp)
vmovdqu TT6, _ytmp+2*SZ8(%rsp)
vmovdqu TT7, _ytmp+3*SZ8(%rsp)
ROUND_00_15 TT0,(i*8+0)
vmovdqu _ytmp(%rsp), TT0
ROUND_00_15 TT1,(i*8+1)
vmovdqu _ytmp+1*SZ8(%rsp), TT1
ROUND_00_15 TT2,(i*8+2)
vmovdqu _ytmp+2*SZ8(%rsp), TT2
ROUND_00_15 TT3,(i*8+3)
vmovdqu _ytmp+3*SZ8(%rsp), TT3
ROUND_00_15 TT0,(i*8+4)
ROUND_00_15 TT1,(i*8+5)
ROUND_00_15 TT2,(i*8+6)
ROUND_00_15 TT3,(i*8+7)
i = (i+1)
.endr
add $64, IDX
i = (i*8)
jmp Lrounds_16_xx
.align 16
Lrounds_16_xx:
.rep 16
ROUND_16_XX T1, i
i = (i+1)
.endr
cmp $ROUNDS,ROUND
jb Lrounds_16_xx
# add old digest
vpaddd _digest+0*SZ8(%rsp), a, a
vpaddd _digest+1*SZ8(%rsp), b, b
vpaddd _digest+2*SZ8(%rsp), c, c
vpaddd _digest+3*SZ8(%rsp), d, d
vpaddd _digest+4*SZ8(%rsp), e, e
vpaddd _digest+5*SZ8(%rsp), f, f
vpaddd _digest+6*SZ8(%rsp), g, g
vpaddd _digest+7*SZ8(%rsp), h, h
sub $1, INP_SIZE # unit is blocks
jne lloop
# write back to memory (state object) the transposed digest
vmovdqu a, 0*SHA256_DIGEST_ROW_SIZE(STATE)
vmovdqu b, 1*SHA256_DIGEST_ROW_SIZE(STATE)
vmovdqu c, 2*SHA256_DIGEST_ROW_SIZE(STATE)
vmovdqu d, 3*SHA256_DIGEST_ROW_SIZE(STATE)
vmovdqu e, 4*SHA256_DIGEST_ROW_SIZE(STATE)
vmovdqu f, 5*SHA256_DIGEST_ROW_SIZE(STATE)
vmovdqu g, 6*SHA256_DIGEST_ROW_SIZE(STATE)
vmovdqu h, 7*SHA256_DIGEST_ROW_SIZE(STATE)
# update input pointers
add IDX, inp0
mov inp0, _args_data_ptr+0*8(STATE)
add IDX, inp1
mov inp1, _args_data_ptr+1*8(STATE)
add IDX, inp2
mov inp2, _args_data_ptr+2*8(STATE)
add IDX, inp3
mov inp3, _args_data_ptr+3*8(STATE)
add IDX, inp4
mov inp4, _args_data_ptr+4*8(STATE)
add IDX, inp5
mov inp5, _args_data_ptr+5*8(STATE)
add IDX, inp6
mov inp6, _args_data_ptr+6*8(STATE)
add IDX, inp7
mov inp7, _args_data_ptr+7*8(STATE)
# Postamble
mov _rsp(%rsp), %rsp
# restore callee-saved clobbered registers
pop %r15
pop %r14
pop %r13
pop %r12
ret
ENDPROC(sha256_x8_avx2)
.section .rodata.K256_8, "a", @progbits
.align 64
K256_8:
.octa 0x428a2f98428a2f98428a2f98428a2f98
.octa 0x428a2f98428a2f98428a2f98428a2f98
.octa 0x71374491713744917137449171374491
.octa 0x71374491713744917137449171374491
.octa 0xb5c0fbcfb5c0fbcfb5c0fbcfb5c0fbcf
.octa 0xb5c0fbcfb5c0fbcfb5c0fbcfb5c0fbcf
.octa 0xe9b5dba5e9b5dba5e9b5dba5e9b5dba5
.octa 0xe9b5dba5e9b5dba5e9b5dba5e9b5dba5
.octa 0x3956c25b3956c25b3956c25b3956c25b
.octa 0x3956c25b3956c25b3956c25b3956c25b
.octa 0x59f111f159f111f159f111f159f111f1
.octa 0x59f111f159f111f159f111f159f111f1
.octa 0x923f82a4923f82a4923f82a4923f82a4
.octa 0x923f82a4923f82a4923f82a4923f82a4
.octa 0xab1c5ed5ab1c5ed5ab1c5ed5ab1c5ed5
.octa 0xab1c5ed5ab1c5ed5ab1c5ed5ab1c5ed5
.octa 0xd807aa98d807aa98d807aa98d807aa98
.octa 0xd807aa98d807aa98d807aa98d807aa98
.octa 0x12835b0112835b0112835b0112835b01
.octa 0x12835b0112835b0112835b0112835b01
.octa 0x243185be243185be243185be243185be
.octa 0x243185be243185be243185be243185be
.octa 0x550c7dc3550c7dc3550c7dc3550c7dc3
.octa 0x550c7dc3550c7dc3550c7dc3550c7dc3
.octa 0x72be5d7472be5d7472be5d7472be5d74
.octa 0x72be5d7472be5d7472be5d7472be5d74
.octa 0x80deb1fe80deb1fe80deb1fe80deb1fe
.octa 0x80deb1fe80deb1fe80deb1fe80deb1fe
.octa 0x9bdc06a79bdc06a79bdc06a79bdc06a7
.octa 0x9bdc06a79bdc06a79bdc06a79bdc06a7
.octa 0xc19bf174c19bf174c19bf174c19bf174
.octa 0xc19bf174c19bf174c19bf174c19bf174
.octa 0xe49b69c1e49b69c1e49b69c1e49b69c1
.octa 0xe49b69c1e49b69c1e49b69c1e49b69c1
.octa 0xefbe4786efbe4786efbe4786efbe4786
.octa 0xefbe4786efbe4786efbe4786efbe4786
.octa 0x0fc19dc60fc19dc60fc19dc60fc19dc6
.octa 0x0fc19dc60fc19dc60fc19dc60fc19dc6
.octa 0x240ca1cc240ca1cc240ca1cc240ca1cc
.octa 0x240ca1cc240ca1cc240ca1cc240ca1cc
.octa 0x2de92c6f2de92c6f2de92c6f2de92c6f
.octa 0x2de92c6f2de92c6f2de92c6f2de92c6f
.octa 0x4a7484aa4a7484aa4a7484aa4a7484aa
.octa 0x4a7484aa4a7484aa4a7484aa4a7484aa
.octa 0x5cb0a9dc5cb0a9dc5cb0a9dc5cb0a9dc
.octa 0x5cb0a9dc5cb0a9dc5cb0a9dc5cb0a9dc
.octa 0x76f988da76f988da76f988da76f988da
.octa 0x76f988da76f988da76f988da76f988da
.octa 0x983e5152983e5152983e5152983e5152
.octa 0x983e5152983e5152983e5152983e5152
.octa 0xa831c66da831c66da831c66da831c66d
.octa 0xa831c66da831c66da831c66da831c66d
.octa 0xb00327c8b00327c8b00327c8b00327c8
.octa 0xb00327c8b00327c8b00327c8b00327c8
.octa 0xbf597fc7bf597fc7bf597fc7bf597fc7
.octa 0xbf597fc7bf597fc7bf597fc7bf597fc7
.octa 0xc6e00bf3c6e00bf3c6e00bf3c6e00bf3
.octa 0xc6e00bf3c6e00bf3c6e00bf3c6e00bf3
.octa 0xd5a79147d5a79147d5a79147d5a79147
.octa 0xd5a79147d5a79147d5a79147d5a79147
.octa 0x06ca635106ca635106ca635106ca6351
.octa 0x06ca635106ca635106ca635106ca6351
.octa 0x14292967142929671429296714292967
.octa 0x14292967142929671429296714292967
.octa 0x27b70a8527b70a8527b70a8527b70a85
.octa 0x27b70a8527b70a8527b70a8527b70a85
.octa 0x2e1b21382e1b21382e1b21382e1b2138
.octa 0x2e1b21382e1b21382e1b21382e1b2138
.octa 0x4d2c6dfc4d2c6dfc4d2c6dfc4d2c6dfc
.octa 0x4d2c6dfc4d2c6dfc4d2c6dfc4d2c6dfc
.octa 0x53380d1353380d1353380d1353380d13
.octa 0x53380d1353380d1353380d1353380d13
.octa 0x650a7354650a7354650a7354650a7354
.octa 0x650a7354650a7354650a7354650a7354
.octa 0x766a0abb766a0abb766a0abb766a0abb
.octa 0x766a0abb766a0abb766a0abb766a0abb
.octa 0x81c2c92e81c2c92e81c2c92e81c2c92e
.octa 0x81c2c92e81c2c92e81c2c92e81c2c92e
.octa 0x92722c8592722c8592722c8592722c85
.octa 0x92722c8592722c8592722c8592722c85
.octa 0xa2bfe8a1a2bfe8a1a2bfe8a1a2bfe8a1
.octa 0xa2bfe8a1a2bfe8a1a2bfe8a1a2bfe8a1
.octa 0xa81a664ba81a664ba81a664ba81a664b
.octa 0xa81a664ba81a664ba81a664ba81a664b
.octa 0xc24b8b70c24b8b70c24b8b70c24b8b70
.octa 0xc24b8b70c24b8b70c24b8b70c24b8b70
.octa 0xc76c51a3c76c51a3c76c51a3c76c51a3
.octa 0xc76c51a3c76c51a3c76c51a3c76c51a3
.octa 0xd192e819d192e819d192e819d192e819
.octa 0xd192e819d192e819d192e819d192e819
.octa 0xd6990624d6990624d6990624d6990624
.octa 0xd6990624d6990624d6990624d6990624
.octa 0xf40e3585f40e3585f40e3585f40e3585
.octa 0xf40e3585f40e3585f40e3585f40e3585
.octa 0x106aa070106aa070106aa070106aa070
.octa 0x106aa070106aa070106aa070106aa070
.octa 0x19a4c11619a4c11619a4c11619a4c116
.octa 0x19a4c11619a4c11619a4c11619a4c116
.octa 0x1e376c081e376c081e376c081e376c08
.octa 0x1e376c081e376c081e376c081e376c08
.octa 0x2748774c2748774c2748774c2748774c
.octa 0x2748774c2748774c2748774c2748774c
.octa 0x34b0bcb534b0bcb534b0bcb534b0bcb5
.octa 0x34b0bcb534b0bcb534b0bcb534b0bcb5
.octa 0x391c0cb3391c0cb3391c0cb3391c0cb3
.octa 0x391c0cb3391c0cb3391c0cb3391c0cb3
.octa 0x4ed8aa4a4ed8aa4a4ed8aa4a4ed8aa4a
.octa 0x4ed8aa4a4ed8aa4a4ed8aa4a4ed8aa4a
.octa 0x5b9cca4f5b9cca4f5b9cca4f5b9cca4f
.octa 0x5b9cca4f5b9cca4f5b9cca4f5b9cca4f
.octa 0x682e6ff3682e6ff3682e6ff3682e6ff3
.octa 0x682e6ff3682e6ff3682e6ff3682e6ff3
.octa 0x748f82ee748f82ee748f82ee748f82ee
.octa 0x748f82ee748f82ee748f82ee748f82ee
.octa 0x78a5636f78a5636f78a5636f78a5636f
.octa 0x78a5636f78a5636f78a5636f78a5636f
.octa 0x84c8781484c8781484c8781484c87814
.octa 0x84c8781484c8781484c8781484c87814
.octa 0x8cc702088cc702088cc702088cc70208
.octa 0x8cc702088cc702088cc702088cc70208
.octa 0x90befffa90befffa90befffa90befffa
.octa 0x90befffa90befffa90befffa90befffa
.octa 0xa4506ceba4506ceba4506ceba4506ceb
.octa 0xa4506ceba4506ceba4506ceba4506ceb
.octa 0xbef9a3f7bef9a3f7bef9a3f7bef9a3f7
.octa 0xbef9a3f7bef9a3f7bef9a3f7bef9a3f7
.octa 0xc67178f2c67178f2c67178f2c67178f2
.octa 0xc67178f2c67178f2c67178f2c67178f2
.section .rodata.cst32.PSHUFFLE_BYTE_FLIP_MASK, "aM", @progbits, 32
.align 32
PSHUFFLE_BYTE_FLIP_MASK:
.octa 0x0c0d0e0f08090a0b0405060700010203
.octa 0x0c0d0e0f08090a0b0405060700010203
.section .rodata.cst256.K256, "aM", @progbits, 256
.align 64
.global K256
K256:
.int 0x428a2f98,0x71374491,0xb5c0fbcf,0xe9b5dba5
.int 0x3956c25b,0x59f111f1,0x923f82a4,0xab1c5ed5
.int 0xd807aa98,0x12835b01,0x243185be,0x550c7dc3
.int 0x72be5d74,0x80deb1fe,0x9bdc06a7,0xc19bf174
.int 0xe49b69c1,0xefbe4786,0x0fc19dc6,0x240ca1cc
.int 0x2de92c6f,0x4a7484aa,0x5cb0a9dc,0x76f988da
.int 0x983e5152,0xa831c66d,0xb00327c8,0xbf597fc7
.int 0xc6e00bf3,0xd5a79147,0x06ca6351,0x14292967
.int 0x27b70a85,0x2e1b2138,0x4d2c6dfc,0x53380d13
.int 0x650a7354,0x766a0abb,0x81c2c92e,0x92722c85
.int 0xa2bfe8a1,0xa81a664b,0xc24b8b70,0xc76c51a3
.int 0xd192e819,0xd6990624,0xf40e3585,0x106aa070
.int 0x19a4c116,0x1e376c08,0x2748774c,0x34b0bcb5
.int 0x391c0cb3,0x4ed8aa4a,0x5b9cca4f,0x682e6ff3
.int 0x748f82ee,0x78a5636f,0x84c87814,0x8cc70208
.int 0x90befffa,0xa4506ceb,0xbef9a3f7,0xc67178f2
arch/x86/crypto/sha512-mb/Makefile deleted 100644 → 0
View file @ 820684cc
# SPDX-License-Identifier: GPL-2.0
#
# Arch-specific CryptoAPI modules.
#
avx2_supported := $(call as-instr,vpgatherdd %ymm0$(comma)(%eax$(comma)%ymm1\
$(comma)4)$(comma)%ymm2,yes,no)
ifeq ($(avx2_supported),yes)
obj-$(CONFIG_CRYPTO_SHA512_MB) += sha512-mb.o
sha512-mb-y := sha512_mb.o sha512_mb_mgr_flush_avx2.o \
sha512_mb_mgr_init_avx2.o sha512_mb_mgr_submit_avx2.o sha512_x4_avx2.o
endif
arch/x86/crypto/sha512-mb/sha512_mb.c deleted 100644 → 0
View file @ 820684cc
/*
* Multi buffer SHA512 algorithm Glue Code
*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2016 Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* 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.
*
* Contact Information:
* Megha Dey <megha.dey@linux.intel.com>
*
* BSD LICENSE
*
* Copyright(c) 2016 Intel Corporation.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
#include <crypto/internal/hash.h>
#include <linux/init.h>
#include <linux/module.h>
#include <linux/mm.h>
#include <linux/cryptohash.h>
#include <linux/types.h>
#include <linux/list.h>
#include <crypto/scatterwalk.h>
#include <crypto/sha.h>
#include <crypto/mcryptd.h>
#include <crypto/crypto_wq.h>
#include <asm/byteorder.h>
#include <linux/hardirq.h>
#include <asm/fpu/api.h>
#include "sha512_mb_ctx.h"
#define FLUSH_INTERVAL 1000 /* in usec */
static struct mcryptd_alg_state sha512_mb_alg_state;
struct sha512_mb_ctx {
struct mcryptd_ahash *mcryptd_tfm;
};
static inline struct mcryptd_hash_request_ctx
*cast_hash_to_mcryptd_ctx(struct sha512_hash_ctx *hash_ctx)
{
struct ahash_request *areq;
areq = container_of((void *) hash_ctx, struct ahash_request, __ctx);
return container_of(areq, struct mcryptd_hash_request_ctx, areq);
}
static inline struct ahash_request
*cast_mcryptd_ctx_to_req(struct mcryptd_hash_request_ctx *ctx)
{
return container_of((void *) ctx, struct ahash_request, __ctx);
}
static void req_ctx_init(struct mcryptd_hash_request_ctx *rctx,
struct ahash_request *areq)
{
rctx->flag = HASH_UPDATE;
}
static asmlinkage void (*sha512_job_mgr_init)(struct sha512_mb_mgr *state);
static asmlinkage struct job_sha512* (*sha512_job_mgr_submit)
(struct sha512_mb_mgr *state,
struct job_sha512 *job);
static asmlinkage struct job_sha512* (*sha512_job_mgr_flush)
(struct sha512_mb_mgr *state);
static asmlinkage struct job_sha512* (*sha512_job_mgr_get_comp_job)
(struct sha512_mb_mgr *state);
inline uint32_t sha512_pad(uint8_t padblock[SHA512_BLOCK_SIZE * 2],
uint64_t total_len)
{
uint32_t i = total_len & (SHA512_BLOCK_SIZE - 1);
memset(&padblock[i], 0, SHA512_BLOCK_SIZE);
padblock[i] = 0x80;
i += ((SHA512_BLOCK_SIZE - 1) &
(0 - (total_len + SHA512_PADLENGTHFIELD_SIZE + 1)))
+ 1 + SHA512_PADLENGTHFIELD_SIZE;
#if SHA512_PADLENGTHFIELD_SIZE == 16
*((uint64_t *) &padblock[i - 16]) = 0;
#endif
*((uint64_t *) &padblock[i - 8]) = cpu_to_be64(total_len << 3);
/* Number of extra blocks to hash */
return i >> SHA512_LOG2_BLOCK_SIZE;
}
static struct sha512_hash_ctx *sha512_ctx_mgr_resubmit
(struct sha512_ctx_mgr *mgr, struct sha512_hash_ctx *ctx)
{
while (ctx) {
if (ctx->status & HASH_CTX_STS_COMPLETE) {
/* Clear PROCESSING bit */
ctx->status = HASH_CTX_STS_COMPLETE;
return ctx;
}
/*
* If the extra blocks are empty, begin hashing what remains
* in the user's buffer.
*/
if (ctx->partial_block_buffer_length == 0 &&
ctx->incoming_buffer_length) {
const void *buffer = ctx->incoming_buffer;
uint32_t len = ctx->incoming_buffer_length;
uint32_t copy_len;
/*
* Only entire blocks can be hashed.
* Copy remainder to extra blocks buffer.
*/
copy_len = len & (SHA512_BLOCK_SIZE-1);
if (copy_len) {
len -= copy_len;
memcpy(ctx->partial_block_buffer,
((const char *) buffer + len),
copy_len);
ctx->partial_block_buffer_length = copy_len;
}
ctx->incoming_buffer_length = 0;
/* len should be a multiple of the block size now */
assert((len % SHA512_BLOCK_SIZE) == 0);
/* Set len to the number of blocks to be hashed */
len >>= SHA512_LOG2_BLOCK_SIZE;
if (len) {
ctx->job.buffer = (uint8_t *) buffer;
ctx->job.len = len;
ctx = (struct sha512_hash_ctx *)
sha512_job_mgr_submit(&mgr->mgr,
&ctx->job);
continue;
}
}
/*
* If the extra blocks are not empty, then we are
* either on the last block(s) or we need more
* user input before continuing.
*/
if (ctx->status & HASH_CTX_STS_LAST) {
uint8_t *buf = ctx->partial_block_buffer;
uint32_t n_extra_blocks =
sha512_pad(buf, ctx->total_length);
ctx->status = (HASH_CTX_STS_PROCESSING |
HASH_CTX_STS_COMPLETE);
ctx->job.buffer = buf;
ctx->job.len = (uint32_t) n_extra_blocks;
ctx = (struct sha512_hash_ctx *)
sha512_job_mgr_submit(&mgr->mgr, &ctx->job);
continue;
}
if (ctx)
ctx->status = HASH_CTX_STS_IDLE;
return ctx;
}
return NULL;
}
static struct sha512_hash_ctx
*sha512_ctx_mgr_get_comp_ctx(struct mcryptd_alg_cstate *cstate)
{
/*
* If get_comp_job returns NULL, there are no jobs complete.
* If get_comp_job returns a job, verify that it is safe to return to
* the user.
* If it is not ready, resubmit the job to finish processing.
* If sha512_ctx_mgr_resubmit returned a job, it is ready to be
* returned.
* Otherwise, all jobs currently being managed by the hash_ctx_mgr
* still need processing.
*/
struct sha512_ctx_mgr *mgr;
struct sha512_hash_ctx *ctx;
unsigned long flags;
mgr = cstate->mgr;
spin_lock_irqsave(&cstate->work_lock, flags);
ctx = (struct sha512_hash_ctx *)
sha512_job_mgr_get_comp_job(&mgr->mgr);
ctx = sha512_ctx_mgr_resubmit(mgr, ctx);
spin_unlock_irqrestore(&cstate->work_lock, flags);
return ctx;
}
static void sha512_ctx_mgr_init(struct sha512_ctx_mgr *mgr)
{
sha512_job_mgr_init(&mgr->mgr);
}
static struct sha512_hash_ctx
*sha512_ctx_mgr_submit(struct mcryptd_alg_cstate *cstate,
struct sha512_hash_ctx *ctx,
const void *buffer,
uint32_t len,
int flags)
{
struct sha512_ctx_mgr *mgr;
unsigned long irqflags;
mgr = cstate->mgr;
spin_lock_irqsave(&cstate->work_lock, irqflags);
if (flags & ~(HASH_UPDATE | HASH_LAST)) {
/* User should not pass anything other than UPDATE or LAST */
ctx->error = HASH_CTX_ERROR_INVALID_FLAGS;
goto unlock;
}
if (ctx->status & HASH_CTX_STS_PROCESSING) {
/* Cannot submit to a currently processing job. */
ctx->error = HASH_CTX_ERROR_ALREADY_PROCESSING;
goto unlock;
}
if (ctx->status & HASH_CTX_STS_COMPLETE) {
/* Cannot update a finished job. */
ctx->error = HASH_CTX_ERROR_ALREADY_COMPLETED;
goto unlock;
}
/*
* If we made it here, there were no errors during this call to
* submit
*/
ctx->error = HASH_CTX_ERROR_NONE;
/* Store buffer ptr info from user */
ctx->incoming_buffer = buffer;
ctx->incoming_buffer_length = len;
/*
* Store the user's request flags and mark this ctx as currently being
* processed.
*/
ctx->status = (flags & HASH_LAST) ?
(HASH_CTX_STS_PROCESSING | HASH_CTX_STS_LAST) :
HASH_CTX_STS_PROCESSING;
/* Advance byte counter */
ctx->total_length += len;
/*
* If there is anything currently buffered in the extra blocks,
* append to it until it contains a whole block.
* Or if the user's buffer contains less than a whole block,
* append as much as possible to the extra block.
*/
if (ctx->partial_block_buffer_length || len < SHA512_BLOCK_SIZE) {
/* Compute how many bytes to copy from user buffer into extra
* block
*/
uint32_t copy_len = SHA512_BLOCK_SIZE -
ctx->partial_block_buffer_length;
if (len < copy_len)
copy_len = len;
if (copy_len) {
/* Copy and update relevant pointers and counters */
memcpy
(&ctx->partial_block_buffer[ctx->partial_block_buffer_length],
buffer, copy_len);
ctx->partial_block_buffer_length += copy_len;
ctx->incoming_buffer = (const void *)
((const char *)buffer + copy_len);
ctx->incoming_buffer_length = len - copy_len;
}
/* The extra block should never contain more than 1 block
* here
*/
assert(ctx->partial_block_buffer_length <= SHA512_BLOCK_SIZE);
/* If the extra block buffer contains exactly 1 block, it can
* be hashed.
*/
if (ctx->partial_block_buffer_length >= SHA512_BLOCK_SIZE) {
ctx->partial_block_buffer_length = 0;
ctx->job.buffer = ctx->partial_block_buffer;
ctx->job.len = 1;
ctx = (struct sha512_hash_ctx *)
sha512_job_mgr_submit(&mgr->mgr, &ctx->job);
}
}
ctx = sha512_ctx_mgr_resubmit(mgr, ctx);
unlock:
spin_unlock_irqrestore(&cstate->work_lock, irqflags);
return ctx;
}
static struct sha512_hash_ctx *sha512_ctx_mgr_flush(struct mcryptd_alg_cstate *cstate)
{
struct sha512_ctx_mgr *mgr;
struct sha512_hash_ctx *ctx;
unsigned long flags;
mgr = cstate->mgr;
spin_lock_irqsave(&cstate->work_lock, flags);
while (1) {
ctx = (struct sha512_hash_ctx *)
sha512_job_mgr_flush(&mgr->mgr);
/* If flush returned 0, there are no more jobs in flight. */
if (!ctx)
break;
/*
* If flush returned a job, resubmit the job to finish
* processing.
*/
ctx = sha512_ctx_mgr_resubmit(mgr, ctx);
/*
* If sha512_ctx_mgr_resubmit returned a job, it is ready to
* be returned. Otherwise, all jobs currently being managed by
* the sha512_ctx_mgr still need processing. Loop.
*/
if (ctx)
break;
}
spin_unlock_irqrestore(&cstate->work_lock, flags);
return ctx;
}
static int sha512_mb_init(struct ahash_request *areq)
{
struct sha512_hash_ctx *sctx = ahash_request_ctx(areq);
hash_ctx_init(sctx);
sctx->job.result_digest[0] = SHA512_H0;
sctx->job.result_digest[1] = SHA512_H1;
sctx->job.result_digest[2] = SHA512_H2;
sctx->job.result_digest[3] = SHA512_H3;
sctx->job.result_digest[4] = SHA512_H4;
sctx->job.result_digest[5] = SHA512_H5;
sctx->job.result_digest[6] = SHA512_H6;
sctx->job.result_digest[7] = SHA512_H7;
sctx->total_length = 0;
sctx->partial_block_buffer_length = 0;
sctx->status = HASH_CTX_STS_IDLE;
return 0;
}
static int sha512_mb_set_results(struct mcryptd_hash_request_ctx *rctx)
{
int i;
struct sha512_hash_ctx *sctx = ahash_request_ctx(&rctx->areq);
__be64 *dst = (__be64 *) rctx->out;
for (i = 0; i < 8; ++i)
dst[i] = cpu_to_be64(sctx->job.result_digest[i]);
return 0;
}
static int sha_finish_walk(struct mcryptd_hash_request_ctx **ret_rctx,
struct mcryptd_alg_cstate *cstate, bool flush)
{
int flag = HASH_UPDATE;
int nbytes, err = 0;
struct mcryptd_hash_request_ctx *rctx = *ret_rctx;
struct sha512_hash_ctx *sha_ctx;
/* more work ? */
while (!(rctx->flag & HASH_DONE)) {
nbytes = crypto_ahash_walk_done(&rctx->walk, 0);
if (nbytes < 0) {
err = nbytes;
goto out;
}
/* check if the walk is done */
if (crypto_ahash_walk_last(&rctx->walk)) {
rctx->flag |= HASH_DONE;
if (rctx->flag & HASH_FINAL)
flag |= HASH_LAST;
}
sha_ctx = (struct sha512_hash_ctx *)
ahash_request_ctx(&rctx->areq);
kernel_fpu_begin();
sha_ctx = sha512_ctx_mgr_submit(cstate, sha_ctx,
rctx->walk.data, nbytes, flag);
if (!sha_ctx) {
if (flush)
sha_ctx = sha512_ctx_mgr_flush(cstate);
}
kernel_fpu_end();
if (sha_ctx)
rctx = cast_hash_to_mcryptd_ctx(sha_ctx);
else {
rctx = NULL;
goto out;
}
}
/* copy the results */
if (rctx->flag & HASH_FINAL)
sha512_mb_set_results(rctx);
out:
*ret_rctx = rctx;
return err;
}
static int sha_complete_job(struct mcryptd_hash_request_ctx *rctx,
struct mcryptd_alg_cstate *cstate,
int err)
{
struct ahash_request *req = cast_mcryptd_ctx_to_req(rctx);
struct sha512_hash_ctx *sha_ctx;
struct mcryptd_hash_request_ctx *req_ctx;
int ret;
unsigned long flags;
/* remove from work list */
spin_lock_irqsave(&cstate->work_lock, flags);
list_del(&rctx->waiter);
spin_unlock_irqrestore(&cstate->work_lock, flags);
if (irqs_disabled())
rctx->complete(&req->base, err);
else {
local_bh_disable();
rctx->complete(&req->base, err);
local_bh_enable();
}
/* check to see if there are other jobs that are done */
sha_ctx = sha512_ctx_mgr_get_comp_ctx(cstate);
while (sha_ctx) {
req_ctx = cast_hash_to_mcryptd_ctx(sha_ctx);
ret = sha_finish_walk(&req_ctx, cstate, false);
if (req_ctx) {
spin_lock_irqsave(&cstate->work_lock, flags);
list_del(&req_ctx->waiter);
spin_unlock_irqrestore(&cstate->work_lock, flags);
req = cast_mcryptd_ctx_to_req(req_ctx);
if (irqs_disabled())
req_ctx->complete(&req->base, ret);
else {
local_bh_disable();
req_ctx->complete(&req->base, ret);
local_bh_enable();
}
}
sha_ctx = sha512_ctx_mgr_get_comp_ctx(cstate);
}
return 0;
}
static void sha512_mb_add_list(struct mcryptd_hash_request_ctx *rctx,
struct mcryptd_alg_cstate *cstate)
{
unsigned long next_flush;
unsigned long delay = usecs_to_jiffies(FLUSH_INTERVAL);
unsigned long flags;
/* initialize tag */
rctx->tag.arrival = jiffies; /* tag the arrival time */
rctx->tag.seq_num = cstate->next_seq_num++;
next_flush = rctx->tag.arrival + delay;
rctx->tag.expire = next_flush;
spin_lock_irqsave(&cstate->work_lock, flags);
list_add_tail(&rctx->waiter, &cstate->work_list);
spin_unlock_irqrestore(&cstate->work_lock, flags);
mcryptd_arm_flusher(cstate, delay);
}
static int sha512_mb_update(struct ahash_request *areq)
{
struct mcryptd_hash_request_ctx *rctx =
container_of(areq, struct mcryptd_hash_request_ctx,
areq);
struct mcryptd_alg_cstate *cstate =
this_cpu_ptr(sha512_mb_alg_state.alg_cstate);
struct ahash_request *req = cast_mcryptd_ctx_to_req(rctx);
struct sha512_hash_ctx *sha_ctx;
int ret = 0, nbytes;
/* sanity check */
if (rctx->tag.cpu != smp_processor_id()) {
pr_err("mcryptd error: cpu clash\n");
goto done;
}
/* need to init context */
req_ctx_init(rctx, areq);
nbytes = crypto_ahash_walk_first(req, &rctx->walk);
if (nbytes < 0) {
ret = nbytes;
goto done;
}
if (crypto_ahash_walk_last(&rctx->walk))
rctx->flag |= HASH_DONE;
/* submit */
sha_ctx = (struct sha512_hash_ctx *) ahash_request_ctx(areq);
sha512_mb_add_list(rctx, cstate);
kernel_fpu_begin();
sha_ctx = sha512_ctx_mgr_submit(cstate, sha_ctx, rctx->walk.data,
nbytes, HASH_UPDATE);
kernel_fpu_end();
/* check if anything is returned */
if (!sha_ctx)
return -EINPROGRESS;
if (sha_ctx->error) {
ret = sha_ctx->error;
rctx = cast_hash_to_mcryptd_ctx(sha_ctx);
goto done;
}
rctx = cast_hash_to_mcryptd_ctx(sha_ctx);
ret = sha_finish_walk(&rctx, cstate, false);
if (!rctx)
return -EINPROGRESS;
done:
sha_complete_job(rctx, cstate, ret);
return ret;
}
static int sha512_mb_finup(struct ahash_request *areq)
{
struct mcryptd_hash_request_ctx *rctx =
container_of(areq, struct mcryptd_hash_request_ctx,
areq);
struct mcryptd_alg_cstate *cstate =
this_cpu_ptr(sha512_mb_alg_state.alg_cstate);
struct ahash_request *req = cast_mcryptd_ctx_to_req(rctx);
struct sha512_hash_ctx *sha_ctx;
int ret = 0, flag = HASH_UPDATE, nbytes;
/* sanity check */
if (rctx->tag.cpu != smp_processor_id()) {
pr_err("mcryptd error: cpu clash\n");
goto done;
}
/* need to init context */
req_ctx_init(rctx, areq);
nbytes = crypto_ahash_walk_first(req, &rctx->walk);
if (nbytes < 0) {
ret = nbytes;
goto done;
}
if (crypto_ahash_walk_last(&rctx->walk)) {
rctx->flag |= HASH_DONE;
flag = HASH_LAST;
}
/* submit */
rctx->flag |= HASH_FINAL;
sha_ctx = (struct sha512_hash_ctx *) ahash_request_ctx(areq);
sha512_mb_add_list(rctx, cstate);
kernel_fpu_begin();
sha_ctx = sha512_ctx_mgr_submit(cstate, sha_ctx, rctx->walk.data,
nbytes, flag);
kernel_fpu_end();
/* check if anything is returned */
if (!sha_ctx)
return -EINPROGRESS;
if (sha_ctx->error) {
ret = sha_ctx->error;
goto done;
}
rctx = cast_hash_to_mcryptd_ctx(sha_ctx);
ret = sha_finish_walk(&rctx, cstate, false);
if (!rctx)
return -EINPROGRESS;
done:
sha_complete_job(rctx, cstate, ret);
return ret;
}
static int sha512_mb_final(struct ahash_request *areq)
{
struct mcryptd_hash_request_ctx *rctx =
container_of(areq, struct mcryptd_hash_request_ctx,
areq);
struct mcryptd_alg_cstate *cstate =
this_cpu_ptr(sha512_mb_alg_state.alg_cstate);
struct sha512_hash_ctx *sha_ctx;
int ret = 0;
u8 data;
/* sanity check */
if (rctx->tag.cpu != smp_processor_id()) {
pr_err("mcryptd error: cpu clash\n");
goto done;
}
/* need to init context */
req_ctx_init(rctx, areq);
rctx->flag |= HASH_DONE | HASH_FINAL;
sha_ctx = (struct sha512_hash_ctx *) ahash_request_ctx(areq);
/* flag HASH_FINAL and 0 data size */
sha512_mb_add_list(rctx, cstate);
kernel_fpu_begin();
sha_ctx = sha512_ctx_mgr_submit(cstate, sha_ctx, &data, 0, HASH_LAST);
kernel_fpu_end();
/* check if anything is returned */
if (!sha_ctx)
return -EINPROGRESS;
if (sha_ctx->error) {
ret = sha_ctx->error;
rctx = cast_hash_to_mcryptd_ctx(sha_ctx);
goto done;
}
rctx = cast_hash_to_mcryptd_ctx(sha_ctx);
ret = sha_finish_walk(&rctx, cstate, false);
if (!rctx)
return -EINPROGRESS;
done:
sha_complete_job(rctx, cstate, ret);
return ret;
}
static int sha512_mb_export(struct ahash_request *areq, void *out)
{
struct sha512_hash_ctx *sctx = ahash_request_ctx(areq);
memcpy(out, sctx, sizeof(*sctx));
return 0;
}
static int sha512_mb_import(struct ahash_request *areq, const void *in)
{
struct sha512_hash_ctx *sctx = ahash_request_ctx(areq);
memcpy(sctx, in, sizeof(*sctx));
return 0;
}
static int sha512_mb_async_init_tfm(struct crypto_tfm *tfm)
{
struct mcryptd_ahash *mcryptd_tfm;
struct sha512_mb_ctx *ctx = crypto_tfm_ctx(tfm);
struct mcryptd_hash_ctx *mctx;
mcryptd_tfm = mcryptd_alloc_ahash("__intel_sha512-mb",
CRYPTO_ALG_INTERNAL,
CRYPTO_ALG_INTERNAL);
if (IS_ERR(mcryptd_tfm))
return PTR_ERR(mcryptd_tfm);
mctx = crypto_ahash_ctx(&mcryptd_tfm->base);
mctx->alg_state = &sha512_mb_alg_state;
ctx->mcryptd_tfm = mcryptd_tfm;
crypto_ahash_set_reqsize(__crypto_ahash_cast(tfm),
sizeof(struct ahash_request) +
crypto_ahash_reqsize(&mcryptd_tfm->base));
return 0;
}
static void sha512_mb_async_exit_tfm(struct crypto_tfm *tfm)
{
struct sha512_mb_ctx *ctx = crypto_tfm_ctx(tfm);
mcryptd_free_ahash(ctx->mcryptd_tfm);
}
static int sha512_mb_areq_init_tfm(struct crypto_tfm *tfm)
{
crypto_ahash_set_reqsize(__crypto_ahash_cast(tfm),
sizeof(struct ahash_request) +
sizeof(struct sha512_hash_ctx));
return 0;
}
static void sha512_mb_areq_exit_tfm(struct crypto_tfm *tfm)
{
struct sha512_mb_ctx *ctx = crypto_tfm_ctx(tfm);
mcryptd_free_ahash(ctx->mcryptd_tfm);
}
static struct ahash_alg sha512_mb_areq_alg = {
.init = sha512_mb_init,
.update = sha512_mb_update,
.final = sha512_mb_final,
.finup = sha512_mb_finup,
.export = sha512_mb_export,
.import = sha512_mb_import,
.halg = {
.digestsize = SHA512_DIGEST_SIZE,
.statesize = sizeof(struct sha512_hash_ctx),
.base = {
.cra_name = "__sha512-mb",
.cra_driver_name = "__intel_sha512-mb",
.cra_priority = 100,
/*
* use ASYNC flag as some buffers in multi-buffer
* algo may not have completed before hashing thread
* sleep
*/
.cra_flags = CRYPTO_ALG_ASYNC |
CRYPTO_ALG_INTERNAL,
.cra_blocksize = SHA512_BLOCK_SIZE,
.cra_module = THIS_MODULE,
.cra_list = LIST_HEAD_INIT
(sha512_mb_areq_alg.halg.base.cra_list),
.cra_init = sha512_mb_areq_init_tfm,
.cra_exit = sha512_mb_areq_exit_tfm,
.cra_ctxsize = sizeof(struct sha512_hash_ctx),
}
}
};
static int sha512_mb_async_init(struct ahash_request *req)
{
struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
struct sha512_mb_ctx *ctx = crypto_ahash_ctx(tfm);
struct ahash_request *mcryptd_req = ahash_request_ctx(req);
struct mcryptd_ahash *mcryptd_tfm = ctx->mcryptd_tfm;
memcpy(mcryptd_req, req, sizeof(*req));
ahash_request_set_tfm(mcryptd_req, &mcryptd_tfm->base);
return crypto_ahash_init(mcryptd_req);
}
static int sha512_mb_async_update(struct ahash_request *req)
{
struct ahash_request *mcryptd_req = ahash_request_ctx(req);
struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
struct sha512_mb_ctx *ctx = crypto_ahash_ctx(tfm);
struct mcryptd_ahash *mcryptd_tfm = ctx->mcryptd_tfm;
memcpy(mcryptd_req, req, sizeof(*req));
ahash_request_set_tfm(mcryptd_req, &mcryptd_tfm->base);
return crypto_ahash_update(mcryptd_req);
}
static int sha512_mb_async_finup(struct ahash_request *req)
{
struct ahash_request *mcryptd_req = ahash_request_ctx(req);
struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
struct sha512_mb_ctx *ctx = crypto_ahash_ctx(tfm);
struct mcryptd_ahash *mcryptd_tfm = ctx->mcryptd_tfm;
memcpy(mcryptd_req, req, sizeof(*req));
ahash_request_set_tfm(mcryptd_req, &mcryptd_tfm->base);
return crypto_ahash_finup(mcryptd_req);
}
static int sha512_mb_async_final(struct ahash_request *req)
{
struct ahash_request *mcryptd_req = ahash_request_ctx(req);
struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
struct sha512_mb_ctx *ctx = crypto_ahash_ctx(tfm);
struct mcryptd_ahash *mcryptd_tfm = ctx->mcryptd_tfm;
memcpy(mcryptd_req, req, sizeof(*req));
ahash_request_set_tfm(mcryptd_req, &mcryptd_tfm->base);
return crypto_ahash_final(mcryptd_req);
}
static int sha512_mb_async_digest(struct ahash_request *req)
{
struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
struct sha512_mb_ctx *ctx = crypto_ahash_ctx(tfm);
struct ahash_request *mcryptd_req = ahash_request_ctx(req);
struct mcryptd_ahash *mcryptd_tfm = ctx->mcryptd_tfm;
memcpy(mcryptd_req, req, sizeof(*req));
ahash_request_set_tfm(mcryptd_req, &mcryptd_tfm->base);
return crypto_ahash_digest(mcryptd_req);
}
static int sha512_mb_async_export(struct ahash_request *req, void *out)
{
struct ahash_request *mcryptd_req = ahash_request_ctx(req);
struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
struct sha512_mb_ctx *ctx = crypto_ahash_ctx(tfm);
struct mcryptd_ahash *mcryptd_tfm = ctx->mcryptd_tfm;
memcpy(mcryptd_req, req, sizeof(*req));
ahash_request_set_tfm(mcryptd_req, &mcryptd_tfm->base);
return crypto_ahash_export(mcryptd_req, out);
}
static int sha512_mb_async_import(struct ahash_request *req, const void *in)
{
struct ahash_request *mcryptd_req = ahash_request_ctx(req);
struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
struct sha512_mb_ctx *ctx = crypto_ahash_ctx(tfm);
struct mcryptd_ahash *mcryptd_tfm = ctx->mcryptd_tfm;
struct crypto_ahash *child = mcryptd_ahash_child(mcryptd_tfm);
struct mcryptd_hash_request_ctx *rctx;
struct ahash_request *areq;
memcpy(mcryptd_req, req, sizeof(*req));
ahash_request_set_tfm(mcryptd_req, &mcryptd_tfm->base);
rctx = ahash_request_ctx(mcryptd_req);
areq = &rctx->areq;
ahash_request_set_tfm(areq, child);
ahash_request_set_callback(areq, CRYPTO_TFM_REQ_MAY_SLEEP,
rctx->complete, req);
return crypto_ahash_import(mcryptd_req, in);
}
static struct ahash_alg sha512_mb_async_alg = {
.init = sha512_mb_async_init,
.update = sha512_mb_async_update,
.final = sha512_mb_async_final,
.finup = sha512_mb_async_finup,
.digest = sha512_mb_async_digest,
.export = sha512_mb_async_export,
.import = sha512_mb_async_import,
.halg = {
.digestsize = SHA512_DIGEST_SIZE,
.statesize = sizeof(struct sha512_hash_ctx),
.base = {
.cra_name = "sha512",
.cra_driver_name = "sha512_mb",
/*
* Low priority, since with few concurrent hash requests
* this is extremely slow due to the flush delay. Users
* whose workloads would benefit from this can request
* it explicitly by driver name, or can increase its
* priority at runtime using NETLINK_CRYPTO.
*/
.cra_priority = 50,
.cra_flags = CRYPTO_ALG_ASYNC,
.cra_blocksize = SHA512_BLOCK_SIZE,
.cra_module = THIS_MODULE,
.cra_list = LIST_HEAD_INIT
(sha512_mb_async_alg.halg.base.cra_list),
.cra_init = sha512_mb_async_init_tfm,
.cra_exit = sha512_mb_async_exit_tfm,
.cra_ctxsize = sizeof(struct sha512_mb_ctx),
.cra_alignmask = 0,
},
},
};
static unsigned long sha512_mb_flusher(struct mcryptd_alg_cstate *cstate)
{
struct mcryptd_hash_request_ctx *rctx;
unsigned long cur_time;
unsigned long next_flush = 0;
struct sha512_hash_ctx *sha_ctx;
cur_time = jiffies;
while (!list_empty(&cstate->work_list)) {
rctx = list_entry(cstate->work_list.next,
struct mcryptd_hash_request_ctx, waiter);
if time_before(cur_time, rctx->tag.expire)
break;
kernel_fpu_begin();
sha_ctx = (struct sha512_hash_ctx *)
sha512_ctx_mgr_flush(cstate);
kernel_fpu_end();
if (!sha_ctx) {
pr_err("sha512_mb error: nothing got flushed for"
" non-empty list\n");
break;
}
rctx = cast_hash_to_mcryptd_ctx(sha_ctx);
sha_finish_walk(&rctx, cstate, true);
sha_complete_job(rctx, cstate, 0);
}
if (!list_empty(&cstate->work_list)) {
rctx = list_entry(cstate->work_list.next,
struct mcryptd_hash_request_ctx, waiter);
/* get the hash context and then flush time */
next_flush = rctx->tag.expire;
mcryptd_arm_flusher(cstate, get_delay(next_flush));
}
return next_flush;
}
static int __init sha512_mb_mod_init(void)
{
int cpu;
int err;
struct mcryptd_alg_cstate *cpu_state;
/* check for dependent cpu features */
if (!boot_cpu_has(X86_FEATURE_AVX2) ||
!boot_cpu_has(X86_FEATURE_BMI2))
return -ENODEV;
/* initialize multibuffer structures */
sha512_mb_alg_state.alg_cstate =
alloc_percpu(struct mcryptd_alg_cstate);
sha512_job_mgr_init = sha512_mb_mgr_init_avx2;
sha512_job_mgr_submit = sha512_mb_mgr_submit_avx2;
sha512_job_mgr_flush = sha512_mb_mgr_flush_avx2;
sha512_job_mgr_get_comp_job = sha512_mb_mgr_get_comp_job_avx2;
if (!sha512_mb_alg_state.alg_cstate)
return -ENOMEM;
for_each_possible_cpu(cpu) {
cpu_state = per_cpu_ptr(sha512_mb_alg_state.alg_cstate, cpu);
cpu_state->next_flush = 0;
cpu_state->next_seq_num = 0;
cpu_state->flusher_engaged = false;
INIT_DELAYED_WORK(&cpu_state->flush, mcryptd_flusher);
cpu_state->cpu = cpu;
cpu_state->alg_state = &sha512_mb_alg_state;
cpu_state->mgr = kzalloc(sizeof(struct sha512_ctx_mgr),
GFP_KERNEL);
if (!cpu_state->mgr)
goto err2;
sha512_ctx_mgr_init(cpu_state->mgr);
INIT_LIST_HEAD(&cpu_state->work_list);
spin_lock_init(&cpu_state->work_lock);
}
sha512_mb_alg_state.flusher = &sha512_mb_flusher;
err = crypto_register_ahash(&sha512_mb_areq_alg);
if (err)
goto err2;
err = crypto_register_ahash(&sha512_mb_async_alg);
if (err)
goto err1;
return 0;
err1:
crypto_unregister_ahash(&sha512_mb_areq_alg);
err2:
for_each_possible_cpu(cpu) {
cpu_state = per_cpu_ptr(sha512_mb_alg_state.alg_cstate, cpu);
kfree(cpu_state->mgr);
}
free_percpu(sha512_mb_alg_state.alg_cstate);
return -ENODEV;
}
static void __exit sha512_mb_mod_fini(void)
{
int cpu;
struct mcryptd_alg_cstate *cpu_state;
crypto_unregister_ahash(&sha512_mb_async_alg);
crypto_unregister_ahash(&sha512_mb_areq_alg);
for_each_possible_cpu(cpu) {
cpu_state = per_cpu_ptr(sha512_mb_alg_state.alg_cstate, cpu);
kfree(cpu_state->mgr);
}
free_percpu(sha512_mb_alg_state.alg_cstate);
}
module_init(sha512_mb_mod_init);
module_exit(sha512_mb_mod_fini);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("SHA512 Secure Hash Algorithm, multi buffer accelerated");
MODULE_ALIAS("sha512");
arch/x86/crypto/sha512-mb/sha512_mb_ctx.h deleted 100644 → 0
View file @ 820684cc
/*
* Header file for multi buffer SHA512 context
*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2016 Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* 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.
*
* Contact Information:
* Megha Dey <megha.dey@linux.intel.com>
*
* BSD LICENSE
*
* Copyright(c) 2016 Intel Corporation.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef _SHA_MB_CTX_INTERNAL_H
#define _SHA_MB_CTX_INTERNAL_H
#include "sha512_mb_mgr.h"
#define HASH_UPDATE 0x00
#define HASH_LAST 0x01
#define HASH_DONE 0x02
#define HASH_FINAL 0x04
#define HASH_CTX_STS_IDLE 0x00
#define HASH_CTX_STS_PROCESSING 0x01
#define HASH_CTX_STS_LAST 0x02
#define HASH_CTX_STS_COMPLETE 0x04
enum hash_ctx_error {
HASH_CTX_ERROR_NONE = 0,
HASH_CTX_ERROR_INVALID_FLAGS = -1,
HASH_CTX_ERROR_ALREADY_PROCESSING = -2,
HASH_CTX_ERROR_ALREADY_COMPLETED = -3,
};
#define hash_ctx_user_data(ctx) ((ctx)->user_data)
#define hash_ctx_digest(ctx) ((ctx)->job.result_digest)
#define hash_ctx_processing(ctx) ((ctx)->status & HASH_CTX_STS_PROCESSING)
#define hash_ctx_complete(ctx) ((ctx)->status == HASH_CTX_STS_COMPLETE)
#define hash_ctx_status(ctx) ((ctx)->status)
#define hash_ctx_error(ctx) ((ctx)->error)
#define hash_ctx_init(ctx) \
do { \
(ctx)->error = HASH_CTX_ERROR_NONE; \
(ctx)->status = HASH_CTX_STS_COMPLETE; \
} while (0)
/* Hash Constants and Typedefs */
#define SHA512_DIGEST_LENGTH 8
#define SHA512_LOG2_BLOCK_SIZE 7
#define SHA512_PADLENGTHFIELD_SIZE 16
#ifdef SHA_MB_DEBUG
#define assert(expr) \
do { \
if (unlikely(!(expr))) { \
printk(KERN_ERR "Assertion failed! %s,%s,%s,line=%d\n", \
#expr, __FILE__, __func__, __LINE__); \
} \
} while (0)
#else
#define assert(expr) do {} while (0)
#endif
struct sha512_ctx_mgr {
struct sha512_mb_mgr mgr;
};
/* typedef struct sha512_ctx_mgr sha512_ctx_mgr; */
struct sha512_hash_ctx {
/* Must be at struct offset 0 */
struct job_sha512 job;
/* status flag */
int status;
/* error flag */
int error;
uint64_t total_length;
const void *incoming_buffer;
uint32_t incoming_buffer_length;
uint8_t partial_block_buffer[SHA512_BLOCK_SIZE * 2];
uint32_t partial_block_buffer_length;
void *user_data;
};
#endif
arch/x86/crypto/sha512-mb/sha512_mb_mgr.h deleted 100644 → 0
View file @ 820684cc
/*
* Header file for multi buffer SHA512 algorithm manager
*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2016 Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* 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.
*
* Contact Information:
* Megha Dey <megha.dey@linux.intel.com>
*
* BSD LICENSE
*
* Copyright(c) 2016 Intel Corporation.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#ifndef __SHA_MB_MGR_H
#define __SHA_MB_MGR_H
#include <linux/types.h>
#define NUM_SHA512_DIGEST_WORDS 8
enum job_sts {STS_UNKNOWN = 0,
STS_BEING_PROCESSED = 1,
STS_COMPLETED = 2,
STS_INTERNAL_ERROR = 3,
STS_ERROR = 4
};
struct job_sha512 {
u8 *buffer;
u64 len;
u64 result_digest[NUM_SHA512_DIGEST_WORDS] __aligned(32);
enum job_sts status;
void *user_data;
};
struct sha512_args_x4 {
uint64_t digest[8][4];
uint8_t *data_ptr[4];
};
struct sha512_lane_data {
struct job_sha512 *job_in_lane;
};
struct sha512_mb_mgr {
struct sha512_args_x4 args;
uint64_t lens[4];
/* each byte is index (0...7) of unused lanes */
uint64_t unused_lanes;
/* byte 4 is set to FF as a flag */
struct sha512_lane_data ldata[4];
};
#define SHA512_MB_MGR_NUM_LANES_AVX2 4
void sha512_mb_mgr_init_avx2(struct sha512_mb_mgr *state);
struct job_sha512 *sha512_mb_mgr_submit_avx2(struct sha512_mb_mgr *state,
struct job_sha512 *job);
struct job_sha512 *sha512_mb_mgr_flush_avx2(struct sha512_mb_mgr *state);
struct job_sha512 *sha512_mb_mgr_get_comp_job_avx2(struct sha512_mb_mgr *state);
#endif
arch/x86/crypto/sha512-mb/sha512_mb_mgr_datastruct.S deleted 100644 → 0
View file @ 820684cc
/*
* Header file for multi buffer SHA256 algorithm data structure
*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2016 Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* 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.
*
* Contact Information:
* Megha Dey <megha.dey@linux.intel.com>
*
* BSD LICENSE
*
* Copyright(c) 2016 Intel Corporation.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
# Macros for defining data structures
# Usage example
#START_FIELDS # JOB_AES
### name size align
#FIELD _plaintext, 8, 8 # pointer to plaintext
#FIELD _ciphertext, 8, 8 # pointer to ciphertext
#FIELD _IV, 16, 8 # IV
#FIELD _keys, 8, 8 # pointer to keys
#FIELD _len, 4, 4 # length in bytes
#FIELD _status, 4, 4 # status enumeration
#FIELD _user_data, 8, 8 # pointer to user data
#UNION _union, size1, align1, \
# size2, align2, \
# size3, align3, \
# ...
#END_FIELDS
#%assign _JOB_AES_size _FIELD_OFFSET
#%assign _JOB_AES_align _STRUCT_ALIGN
#########################################################################
# Alternate "struc-like" syntax:
# STRUCT job_aes2
# RES_Q .plaintext, 1
# RES_Q .ciphertext, 1
# RES_DQ .IV, 1
# RES_B .nested, _JOB_AES_SIZE, _JOB_AES_ALIGN
# RES_U .union, size1, align1, \
# size2, align2, \
# ...
# ENDSTRUCT
# # Following only needed if nesting
# %assign job_aes2_size _FIELD_OFFSET
# %assign job_aes2_align _STRUCT_ALIGN
#
# RES_* macros take a name, a count and an optional alignment.
# The count in in terms of the base size of the macro, and the
# default alignment is the base size.
# The macros are:
# Macro Base size
# RES_B 1
# RES_W 2
# RES_D 4
# RES_Q 8
# RES_DQ 16
# RES_Y 32
# RES_Z 64
#
# RES_U defines a union. It's arguments are a name and two or more
# pairs of "size, alignment"
#
# The two assigns are only needed if this structure is being nested
# within another. Even if the assigns are not done, one can still use
# STRUCT_NAME_size as the size of the structure.
#
# Note that for nesting, you still need to assign to STRUCT_NAME_size.
#
# The differences between this and using "struc" directly are that each
# type is implicitly aligned to its natural length (although this can be
# over-ridden with an explicit third parameter), and that the structure
# is padded at the end to its overall alignment.
#
#########################################################################
#ifndef _DATASTRUCT_ASM_
#define _DATASTRUCT_ASM_
#define PTR_SZ 8
#define SHA512_DIGEST_WORD_SIZE 8
#define SHA512_MB_MGR_NUM_LANES_AVX2 4
#define NUM_SHA512_DIGEST_WORDS 8
#define SZ4 4*SHA512_DIGEST_WORD_SIZE
#define ROUNDS 80*SZ4
#define SHA512_DIGEST_ROW_SIZE (SHA512_MB_MGR_NUM_LANES_AVX2 * 8)
# START_FIELDS
.macro START_FIELDS
_FIELD_OFFSET = 0
_STRUCT_ALIGN = 0
.endm
# FIELD name size align
.macro FIELD name size align
_FIELD_OFFSET = (_FIELD_OFFSET + (\align) - 1) & (~ ((\align)-1))
\name = _FIELD_OFFSET
_FIELD_OFFSET = _FIELD_OFFSET + (\size)
.if (\align > _STRUCT_ALIGN)
_STRUCT_ALIGN = \align
.endif
.endm
# END_FIELDS
.macro END_FIELDS
_FIELD_OFFSET = (_FIELD_OFFSET + _STRUCT_ALIGN-1) & (~ (_STRUCT_ALIGN-1))
.endm
.macro STRUCT p1
START_FIELDS
.struc \p1
.endm
.macro ENDSTRUCT
tmp = _FIELD_OFFSET
END_FIELDS
tmp = (_FIELD_OFFSET - ##tmp)
.if (tmp > 0)
.lcomm tmp
.endm
## RES_int name size align
.macro RES_int p1 p2 p3
name = \p1
size = \p2
align = .\p3
_FIELD_OFFSET = (_FIELD_OFFSET + (align) - 1) & (~ ((align)-1))
.align align
.lcomm name size
_FIELD_OFFSET = _FIELD_OFFSET + (size)
.if (align > _STRUCT_ALIGN)
_STRUCT_ALIGN = align
.endif
.endm
# macro RES_B name, size [, align]
.macro RES_B _name, _size, _align=1
RES_int _name _size _align
.endm
# macro RES_W name, size [, align]
.macro RES_W _name, _size, _align=2
RES_int _name 2*(_size) _align
.endm
# macro RES_D name, size [, align]
.macro RES_D _name, _size, _align=4
RES_int _name 4*(_size) _align
.endm
# macro RES_Q name, size [, align]
.macro RES_Q _name, _size, _align=8
RES_int _name 8*(_size) _align
.endm
# macro RES_DQ name, size [, align]
.macro RES_DQ _name, _size, _align=16
RES_int _name 16*(_size) _align
.endm
# macro RES_Y name, size [, align]
.macro RES_Y _name, _size, _align=32
RES_int _name 32*(_size) _align
.endm
# macro RES_Z name, size [, align]
.macro RES_Z _name, _size, _align=64
RES_int _name 64*(_size) _align
.endm
#endif
###################################################################
### Define SHA512 Out Of Order Data Structures
###################################################################
START_FIELDS # LANE_DATA
### name size align
FIELD _job_in_lane, 8, 8 # pointer to job object
END_FIELDS
_LANE_DATA_size = _FIELD_OFFSET
_LANE_DATA_align = _STRUCT_ALIGN
####################################################################
START_FIELDS # SHA512_ARGS_X4
### name size align
FIELD _digest, 8*8*4, 4 # transposed digest
FIELD _data_ptr, 8*4, 8 # array of pointers to data
END_FIELDS
_SHA512_ARGS_X4_size = _FIELD_OFFSET
_SHA512_ARGS_X4_align = _STRUCT_ALIGN
#####################################################################
START_FIELDS # MB_MGR
### name size align
FIELD _args, _SHA512_ARGS_X4_size, _SHA512_ARGS_X4_align
FIELD _lens, 8*4, 8
FIELD _unused_lanes, 8, 8
FIELD _ldata, _LANE_DATA_size*4, _LANE_DATA_align
END_FIELDS
_MB_MGR_size = _FIELD_OFFSET
_MB_MGR_align = _STRUCT_ALIGN
_args_digest = _args + _digest
_args_data_ptr = _args + _data_ptr
#######################################################################
#######################################################################
#### Define constants
#######################################################################
#define STS_UNKNOWN 0
#define STS_BEING_PROCESSED 1
#define STS_COMPLETED 2
#######################################################################
#### Define JOB_SHA512 structure
#######################################################################
START_FIELDS # JOB_SHA512
### name size align
FIELD _buffer, 8, 8 # pointer to buffer
FIELD _len, 8, 8 # length in bytes
FIELD _result_digest, 8*8, 32 # Digest (output)
FIELD _status, 4, 4
FIELD _user_data, 8, 8
END_FIELDS
_JOB_SHA512_size = _FIELD_OFFSET
_JOB_SHA512_align = _STRUCT_ALIGN
arch/x86/crypto/sha512-mb/sha512_mb_mgr_flush_avx2.S deleted 100644 → 0
View file @ 820684cc
/*
* Flush routine for SHA512 multibuffer
*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2016 Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* 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.
*
* Contact Information:
* Megha Dey <megha.dey@linux.intel.com>
*
* BSD LICENSE
*
* Copyright(c) 2016 Intel Corporation.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <linux/linkage.h>
#include <asm/frame.h>
#include "sha512_mb_mgr_datastruct.S"
.extern sha512_x4_avx2
# LINUX register definitions
#define arg1 %rdi
#define arg2 %rsi
# idx needs to be other than arg1, arg2, rbx, r12
#define idx %rdx
# Common definitions
#define state arg1
#define job arg2
#define len2 arg2
#define unused_lanes %rbx
#define lane_data %rbx
#define tmp2 %rbx
#define job_rax %rax
#define tmp1 %rax
#define size_offset %rax
#define tmp %rax
#define start_offset %rax
#define tmp3 arg1
#define extra_blocks arg2
#define p arg2
#define tmp4 %r8
#define lens0 %r8
#define lens1 %r9
#define lens2 %r10
#define lens3 %r11
.macro LABEL prefix n
\prefix\n\():
.endm
.macro JNE_SKIP i
jne skip_\i
.endm
.altmacro
.macro SET_OFFSET _offset
offset = \_offset
.endm
.noaltmacro
# JOB* sha512_mb_mgr_flush_avx2(MB_MGR *state)
# arg 1 : rcx : state
ENTRY(sha512_mb_mgr_flush_avx2)
FRAME_BEGIN
push %rbx
# If bit (32+3) is set, then all lanes are empty
mov _unused_lanes(state), unused_lanes
bt $32+7, unused_lanes
jc return_null
# find a lane with a non-null job
xor idx, idx
offset = (_ldata + 1*_LANE_DATA_size + _job_in_lane)
cmpq $0, offset(state)
cmovne one(%rip), idx
offset = (_ldata + 2*_LANE_DATA_size + _job_in_lane)
cmpq $0, offset(state)
cmovne two(%rip), idx
offset = (_ldata + 3*_LANE_DATA_size + _job_in_lane)
cmpq $0, offset(state)
cmovne three(%rip), idx
# copy idx to empty lanes
copy_lane_data:
offset = (_args + _data_ptr)
mov offset(state,idx,8), tmp
I = 0
.rep 4
offset = (_ldata + I * _LANE_DATA_size + _job_in_lane)
cmpq $0, offset(state)
.altmacro
JNE_SKIP %I
offset = (_args + _data_ptr + 8*I)
mov tmp, offset(state)
offset = (_lens + 8*I +4)
movl $0xFFFFFFFF, offset(state)
LABEL skip_ %I
I = (I+1)
.noaltmacro
.endr
# Find min length
mov _lens + 0*8(state),lens0
mov lens0,idx
mov _lens + 1*8(state),lens1
cmp idx,lens1
cmovb lens1,idx
mov _lens + 2*8(state),lens2
cmp idx,lens2
cmovb lens2,idx
mov _lens + 3*8(state),lens3
cmp idx,lens3
cmovb lens3,idx
mov idx,len2
and $0xF,idx
and $~0xFF,len2
jz len_is_0
sub len2, lens0
sub len2, lens1
sub len2, lens2
sub len2, lens3
shr $32,len2
mov lens0, _lens + 0*8(state)
mov lens1, _lens + 1*8(state)
mov lens2, _lens + 2*8(state)
mov lens3, _lens + 3*8(state)
# "state" and "args" are the same address, arg1
# len is arg2
call sha512_x4_avx2
# state and idx are intact
len_is_0:
# process completed job "idx"
imul $_LANE_DATA_size, idx, lane_data
lea _ldata(state, lane_data), lane_data
mov _job_in_lane(lane_data), job_rax
movq $0, _job_in_lane(lane_data)
movl $STS_COMPLETED, _status(job_rax)
mov _unused_lanes(state), unused_lanes
shl $8, unused_lanes
or idx, unused_lanes
mov unused_lanes, _unused_lanes(state)
movl $0xFFFFFFFF, _lens+4(state, idx, 8)
vmovq _args_digest+0*32(state, idx, 8), %xmm0
vpinsrq $1, _args_digest+1*32(state, idx, 8), %xmm0, %xmm0
vmovq _args_digest+2*32(state, idx, 8), %xmm1
vpinsrq $1, _args_digest+3*32(state, idx, 8), %xmm1, %xmm1
vmovq _args_digest+4*32(state, idx, 8), %xmm2
vpinsrq $1, _args_digest+5*32(state, idx, 8), %xmm2, %xmm2
vmovq _args_digest+6*32(state, idx, 8), %xmm3
vpinsrq $1, _args_digest+7*32(state, idx, 8), %xmm3, %xmm3
vmovdqu %xmm0, _result_digest(job_rax)
vmovdqu %xmm1, _result_digest+1*16(job_rax)
vmovdqu %xmm2, _result_digest+2*16(job_rax)
vmovdqu %xmm3, _result_digest+3*16(job_rax)
return:
pop %rbx
FRAME_END
ret
return_null:
xor job_rax, job_rax
jmp return
ENDPROC(sha512_mb_mgr_flush_avx2)
.align 16
ENTRY(sha512_mb_mgr_get_comp_job_avx2)
push %rbx
mov _unused_lanes(state), unused_lanes
bt $(32+7), unused_lanes
jc .return_null
# Find min length
mov _lens(state),lens0
mov lens0,idx
mov _lens+1*8(state),lens1
cmp idx,lens1
cmovb lens1,idx
mov _lens+2*8(state),lens2
cmp idx,lens2
cmovb lens2,idx
mov _lens+3*8(state),lens3
cmp idx,lens3
cmovb lens3,idx
test $~0xF,idx
jnz .return_null
and $0xF,idx
#process completed job "idx"
imul $_LANE_DATA_size, idx, lane_data
lea _ldata(state, lane_data), lane_data
mov _job_in_lane(lane_data), job_rax
movq $0, _job_in_lane(lane_data)
movl $STS_COMPLETED, _status(job_rax)
mov _unused_lanes(state), unused_lanes
shl $8, unused_lanes
or idx, unused_lanes
mov unused_lanes, _unused_lanes(state)
movl $0xFFFFFFFF, _lens+4(state, idx, 8)
vmovq _args_digest(state, idx, 8), %xmm0
vpinsrq $1, _args_digest+1*32(state, idx, 8), %xmm0, %xmm0
vmovq _args_digest+2*32(state, idx, 8), %xmm1
vpinsrq $1, _args_digest+3*32(state, idx, 8), %xmm1, %xmm1
vmovq _args_digest+4*32(state, idx, 8), %xmm2
vpinsrq $1, _args_digest+5*32(state, idx, 8), %xmm2, %xmm2
vmovq _args_digest+6*32(state, idx, 8), %xmm3
vpinsrq $1, _args_digest+7*32(state, idx, 8), %xmm3, %xmm3
vmovdqu %xmm0, _result_digest+0*16(job_rax)
vmovdqu %xmm1, _result_digest+1*16(job_rax)
vmovdqu %xmm2, _result_digest+2*16(job_rax)
vmovdqu %xmm3, _result_digest+3*16(job_rax)
pop %rbx
ret
.return_null:
xor job_rax, job_rax
pop %rbx
ret
ENDPROC(sha512_mb_mgr_get_comp_job_avx2)
.section .rodata.cst8.one, "aM", @progbits, 8
.align 8
one:
.quad 1
.section .rodata.cst8.two, "aM", @progbits, 8
.align 8
two:
.quad 2
.section .rodata.cst8.three, "aM", @progbits, 8
.align 8
three:
.quad 3
arch/x86/crypto/sha512-mb/sha512_mb_mgr_init_avx2.c deleted 100644 → 0
View file @ 820684cc
/*
* Initialization code for multi buffer SHA256 algorithm for AVX2
*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2016 Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* 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.
*
* Contact Information:
* Megha Dey <megha.dey@linux.intel.com>
*
* BSD LICENSE
*
* Copyright(c) 2016 Intel Corporation.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "sha512_mb_mgr.h"
void sha512_mb_mgr_init_avx2(struct sha512_mb_mgr *state)
{
unsigned int j;
/* initially all lanes are unused */
state->lens[0] = 0xFFFFFFFF00000000;
state->lens[1] = 0xFFFFFFFF00000001;
state->lens[2] = 0xFFFFFFFF00000002;
state->lens[3] = 0xFFFFFFFF00000003;
state->unused_lanes = 0xFF03020100;
for (j = 0; j < 4; j++)
state->ldata[j].job_in_lane = NULL;
}
arch/x86/crypto/sha512-mb/sha512_mb_mgr_submit_avx2.S deleted 100644 → 0
View file @ 820684cc
/*
* Buffer submit code for multi buffer SHA512 algorithm
*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2016 Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* 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.
*
* Contact Information:
* Megha Dey <megha.dey@linux.intel.com>
*
* BSD LICENSE
*
* Copyright(c) 2016 Intel Corporation.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include <linux/linkage.h>
#include <asm/frame.h>
#include "sha512_mb_mgr_datastruct.S"
.extern sha512_x4_avx2
#define arg1 %rdi
#define arg2 %rsi
#define idx %rdx
#define last_len %rdx
#define size_offset %rcx
#define tmp2 %rcx
# Common definitions
#define state arg1
#define job arg2
#define len2 arg2
#define p2 arg2
#define p %r11
#define start_offset %r11
#define unused_lanes %rbx
#define job_rax %rax
#define len %rax
#define lane %r12
#define tmp3 %r12
#define lens3 %r12
#define extra_blocks %r8
#define lens0 %r8
#define tmp %r9
#define lens1 %r9
#define lane_data %r10
#define lens2 %r10
#define DWORD_len %eax
# JOB* sha512_mb_mgr_submit_avx2(MB_MGR *state, JOB *job)
# arg 1 : rcx : state
# arg 2 : rdx : job
ENTRY(sha512_mb_mgr_submit_avx2)
FRAME_BEGIN
push %rbx
push %r12
mov _unused_lanes(state), unused_lanes
movzb %bl,lane
shr $8, unused_lanes
imul $_LANE_DATA_size, lane,lane_data
movl $STS_BEING_PROCESSED, _status(job)
lea _ldata(state, lane_data), lane_data
mov unused_lanes, _unused_lanes(state)
movl _len(job), DWORD_len
mov job, _job_in_lane(lane_data)
movl DWORD_len,_lens+4(state , lane, 8)
# Load digest words from result_digest
vmovdqu _result_digest+0*16(job), %xmm0
vmovdqu _result_digest+1*16(job), %xmm1
vmovdqu _result_digest+2*16(job), %xmm2
vmovdqu _result_digest+3*16(job), %xmm3
vmovq %xmm0, _args_digest(state, lane, 8)
vpextrq $1, %xmm0, _args_digest+1*32(state , lane, 8)
vmovq %xmm1, _args_digest+2*32(state , lane, 8)
vpextrq $1, %xmm1, _args_digest+3*32(state , lane, 8)
vmovq %xmm2, _args_digest+4*32(state , lane, 8)
vpextrq $1, %xmm2, _args_digest+5*32(state , lane, 8)
vmovq %xmm3, _args_digest+6*32(state , lane, 8)
vpextrq $1, %xmm3, _args_digest+7*32(state , lane, 8)
mov _buffer(job), p
mov p, _args_data_ptr(state, lane, 8)
cmp $0xFF, unused_lanes
jne return_null
start_loop:
# Find min length
mov _lens+0*8(state),lens0
mov lens0,idx
mov _lens+1*8(state),lens1
cmp idx,lens1
cmovb lens1, idx
mov _lens+2*8(state),lens2
cmp idx,lens2
cmovb lens2,idx
mov _lens+3*8(state),lens3
cmp idx,lens3
cmovb lens3,idx
mov idx,len2
and $0xF,idx
and $~0xFF,len2
jz len_is_0
sub len2,lens0
sub len2,lens1
sub len2,lens2
sub len2,lens3
shr $32,len2
mov lens0, _lens + 0*8(state)
mov lens1, _lens + 1*8(state)
mov lens2, _lens + 2*8(state)
mov lens3, _lens + 3*8(state)
# "state" and "args" are the same address, arg1
# len is arg2
call sha512_x4_avx2
# state and idx are intact
len_is_0:
# process completed job "idx"
imul $_LANE_DATA_size, idx, lane_data
lea _ldata(state, lane_data), lane_data
mov _job_in_lane(lane_data), job_rax
mov _unused_lanes(state), unused_lanes
movq $0, _job_in_lane(lane_data)
movl $STS_COMPLETED, _status(job_rax)
shl $8, unused_lanes
or idx, unused_lanes
mov unused_lanes, _unused_lanes(state)
movl $0xFFFFFFFF,_lens+4(state,idx,8)
vmovq _args_digest+0*32(state , idx, 8), %xmm0
vpinsrq $1, _args_digest+1*32(state , idx, 8), %xmm0, %xmm0
vmovq _args_digest+2*32(state , idx, 8), %xmm1
vpinsrq $1, _args_digest+3*32(state , idx, 8), %xmm1, %xmm1
vmovq _args_digest+4*32(state , idx, 8), %xmm2
vpinsrq $1, _args_digest+5*32(state , idx, 8), %xmm2, %xmm2
vmovq _args_digest+6*32(state , idx, 8), %xmm3
vpinsrq $1, _args_digest+7*32(state , idx, 8), %xmm3, %xmm3
vmovdqu %xmm0, _result_digest + 0*16(job_rax)
vmovdqu %xmm1, _result_digest + 1*16(job_rax)
vmovdqu %xmm2, _result_digest + 2*16(job_rax)
vmovdqu %xmm3, _result_digest + 3*16(job_rax)
return:
pop %r12
pop %rbx
FRAME_END
ret
return_null:
xor job_rax, job_rax
jmp return
ENDPROC(sha512_mb_mgr_submit_avx2)
/* UNUSED?
.section .rodata.cst16, "aM", @progbits, 16
.align 16
H0: .int 0x6a09e667
H1: .int 0xbb67ae85
H2: .int 0x3c6ef372
H3: .int 0xa54ff53a
H4: .int 0x510e527f
H5: .int 0x9b05688c
H6: .int 0x1f83d9ab
H7: .int 0x5be0cd19
*/
arch/x86/crypto/sha512-mb/sha512_x4_avx2.S deleted 100644 → 0
View file @ 820684cc
/*
* Multi-buffer SHA512 algorithm hash compute routine
*
* This file is provided under a dual BSD/GPLv2 license. When using or
* redistributing this file, you may do so under either license.
*
* GPL LICENSE SUMMARY
*
* Copyright(c) 2016 Intel Corporation.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
* published by the Free Software Foundation.
*
* 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.
*
* Contact Information:
* Megha Dey <megha.dey@linux.intel.com>
*
* BSD LICENSE
*
* Copyright(c) 2016 Intel Corporation.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
*
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
* * Neither the name of Intel Corporation nor the names of its
* contributors may be used to endorse or promote products derived
* from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
# code to compute quad SHA512 using AVX2
# use YMMs to tackle the larger digest size
# outer calling routine takes care of save and restore of XMM registers
# Logic designed/laid out by JDG
# Function clobbers: rax, rcx, rdx, rbx, rsi, rdi, r9-r15; ymm0-15
# Stack must be aligned to 32 bytes before call
# Linux clobbers: rax rbx rcx rsi r8 r9 r10 r11 r12
# Linux preserves: rcx rdx rdi rbp r13 r14 r15
# clobbers ymm0-15
#include <linux/linkage.h>
#include "sha512_mb_mgr_datastruct.S"
arg1 = %rdi
arg2 = %rsi
# Common definitions
STATE = arg1
INP_SIZE = arg2
IDX = %rax
ROUND = %rbx
TBL = %r8
inp0 = %r9
inp1 = %r10
inp2 = %r11
inp3 = %r12
a = %ymm0
b = %ymm1
c = %ymm2
d = %ymm3
e = %ymm4
f = %ymm5
g = %ymm6
h = %ymm7
a0 = %ymm8
a1 = %ymm9
a2 = %ymm10
TT0 = %ymm14
TT1 = %ymm13
TT2 = %ymm12
TT3 = %ymm11
TT4 = %ymm10
TT5 = %ymm9
T1 = %ymm14
TMP = %ymm15
# Define stack usage
STACK_SPACE1 = SZ4*16 + NUM_SHA512_DIGEST_WORDS*SZ4 + 24
#define VMOVPD vmovupd
_digest = SZ4*16
# transpose r0, r1, r2, r3, t0, t1
# "transpose" data in {r0..r3} using temps {t0..t3}
# Input looks like: {r0 r1 r2 r3}
# r0 = {a7 a6 a5 a4 a3 a2 a1 a0}
# r1 = {b7 b6 b5 b4 b3 b2 b1 b0}
# r2 = {c7 c6 c5 c4 c3 c2 c1 c0}
# r3 = {d7 d6 d5 d4 d3 d2 d1 d0}
#
# output looks like: {t0 r1 r0 r3}
# t0 = {d1 d0 c1 c0 b1 b0 a1 a0}
# r1 = {d3 d2 c3 c2 b3 b2 a3 a2}
# r0 = {d5 d4 c5 c4 b5 b4 a5 a4}
# r3 = {d7 d6 c7 c6 b7 b6 a7 a6}
.macro TRANSPOSE r0 r1 r2 r3 t0 t1
vshufps $0x44, \r1, \r0, \t0 # t0 = {b5 b4 a5 a4 b1 b0 a1 a0}
vshufps $0xEE, \r1, \r0, \r0 # r0 = {b7 b6 a7 a6 b3 b2 a3 a2}
vshufps $0x44, \r3, \r2, \t1 # t1 = {d5 d4 c5 c4 d1 d0 c1 c0}
vshufps $0xEE, \r3, \r2, \r2 # r2 = {d7 d6 c7 c6 d3 d2 c3 c2}
vperm2f128 $0x20, \r2, \r0, \r1 # h6...a6
vperm2f128 $0x31, \r2, \r0, \r3 # h2...a2
vperm2f128 $0x31, \t1, \t0, \r0 # h5...a5
vperm2f128 $0x20, \t1, \t0, \t0 # h1...a1
.endm
.macro ROTATE_ARGS
TMP_ = h
h = g
g = f
f = e
e = d
d = c
c = b
b = a
a = TMP_
.endm
# PRORQ reg, imm, tmp
# packed-rotate-right-double
# does a rotate by doing two shifts and an or
.macro _PRORQ reg imm tmp
vpsllq $(64-\imm),\reg,\tmp
vpsrlq $\imm,\reg, \reg
vpor \tmp,\reg, \reg
.endm
# non-destructive
# PRORQ_nd reg, imm, tmp, src
.macro _PRORQ_nd reg imm tmp src
vpsllq $(64-\imm), \src, \tmp
vpsrlq $\imm, \src, \reg
vpor \tmp, \reg, \reg
.endm
# PRORQ dst/src, amt
.macro PRORQ reg imm
_PRORQ \reg, \imm, TMP
.endm
# PRORQ_nd dst, src, amt
.macro PRORQ_nd reg tmp imm
_PRORQ_nd \reg, \imm, TMP, \tmp
.endm
#; arguments passed implicitly in preprocessor symbols i, a...h
.macro ROUND_00_15 _T1 i
PRORQ_nd a0, e, (18-14) # sig1: a0 = (e >> 4)
vpxor g, f, a2 # ch: a2 = f^g
vpand e,a2, a2 # ch: a2 = (f^g)&e
vpxor g, a2, a2 # a2 = ch
PRORQ_nd a1,e,41 # sig1: a1 = (e >> 25)
offset = SZ4*(\i & 0xf)
vmovdqu \_T1,offset(%rsp)
vpaddq (TBL,ROUND,1), \_T1, \_T1 # T1 = W + K
vpxor e,a0, a0 # sig1: a0 = e ^ (e >> 5)
PRORQ a0, 14 # sig1: a0 = (e >> 6) ^ (e >> 11)
vpaddq a2, h, h # h = h + ch
PRORQ_nd a2,a,6 # sig0: a2 = (a >> 11)
vpaddq \_T1,h, h # h = h + ch + W + K
vpxor a1, a0, a0 # a0 = sigma1
vmovdqu a,\_T1
PRORQ_nd a1,a,39 # sig0: a1 = (a >> 22)
vpxor c, \_T1, \_T1 # maj: T1 = a^c
add $SZ4, ROUND # ROUND++
vpand b, \_T1, \_T1 # maj: T1 = (a^c)&b
vpaddq a0, h, h
vpaddq h, d, d
vpxor a, a2, a2 # sig0: a2 = a ^ (a >> 11)
PRORQ a2,28 # sig0: a2 = (a >> 2) ^ (a >> 13)
vpxor a1, a2, a2 # a2 = sig0
vpand c, a, a1 # maj: a1 = a&c
vpor \_T1, a1, a1 # a1 = maj
vpaddq a1, h, h # h = h + ch + W + K + maj
vpaddq a2, h, h # h = h + ch + W + K + maj + sigma0
ROTATE_ARGS
.endm
#; arguments passed implicitly in preprocessor symbols i, a...h
.macro ROUND_16_XX _T1 i
vmovdqu SZ4*((\i-15)&0xf)(%rsp), \_T1
vmovdqu SZ4*((\i-2)&0xf)(%rsp), a1
vmovdqu \_T1, a0
PRORQ \_T1,7
vmovdqu a1, a2
PRORQ a1,42
vpxor a0, \_T1, \_T1
PRORQ \_T1, 1
vpxor a2, a1, a1
PRORQ a1, 19
vpsrlq $7, a0, a0
vpxor a0, \_T1, \_T1
vpsrlq $6, a2, a2
vpxor a2, a1, a1
vpaddq SZ4*((\i-16)&0xf)(%rsp), \_T1, \_T1
vpaddq SZ4*((\i-7)&0xf)(%rsp), a1, a1
vpaddq a1, \_T1, \_T1
ROUND_00_15 \_T1,\i
.endm
# void sha512_x4_avx2(void *STATE, const int INP_SIZE)
# arg 1 : STATE : pointer to input data
# arg 2 : INP_SIZE : size of data in blocks (assumed >= 1)
ENTRY(sha512_x4_avx2)
# general registers preserved in outer calling routine
# outer calling routine saves all the XMM registers
# save callee-saved clobbered registers to comply with C function ABI
push %r12
push %r13
push %r14
push %r15
sub $STACK_SPACE1, %rsp
# Load the pre-transposed incoming digest.
vmovdqu 0*SHA512_DIGEST_ROW_SIZE(STATE),a
vmovdqu 1*SHA512_DIGEST_ROW_SIZE(STATE),b
vmovdqu 2*SHA512_DIGEST_ROW_SIZE(STATE),c
vmovdqu 3*SHA512_DIGEST_ROW_SIZE(STATE),d
vmovdqu 4*SHA512_DIGEST_ROW_SIZE(STATE),e
vmovdqu 5*SHA512_DIGEST_ROW_SIZE(STATE),f
vmovdqu 6*SHA512_DIGEST_ROW_SIZE(STATE),g
vmovdqu 7*SHA512_DIGEST_ROW_SIZE(STATE),h
lea K512_4(%rip),TBL
# load the address of each of the 4 message lanes
# getting ready to transpose input onto stack
mov _data_ptr+0*PTR_SZ(STATE),inp0
mov _data_ptr+1*PTR_SZ(STATE),inp1
mov _data_ptr+2*PTR_SZ(STATE),inp2
mov _data_ptr+3*PTR_SZ(STATE),inp3
xor IDX, IDX
lloop:
xor ROUND, ROUND
# save old digest
vmovdqu a, _digest(%rsp)
vmovdqu b, _digest+1*SZ4(%rsp)
vmovdqu c, _digest+2*SZ4(%rsp)
vmovdqu d, _digest+3*SZ4(%rsp)
vmovdqu e, _digest+4*SZ4(%rsp)
vmovdqu f, _digest+5*SZ4(%rsp)
vmovdqu g, _digest+6*SZ4(%rsp)
vmovdqu h, _digest+7*SZ4(%rsp)
i = 0
.rep 4
vmovdqu PSHUFFLE_BYTE_FLIP_MASK(%rip), TMP
VMOVPD i*32(inp0, IDX), TT2
VMOVPD i*32(inp1, IDX), TT1
VMOVPD i*32(inp2, IDX), TT4
VMOVPD i*32(inp3, IDX), TT3
TRANSPOSE TT2, TT1, TT4, TT3, TT0, TT5
vpshufb TMP, TT0, TT0
vpshufb TMP, TT1, TT1
vpshufb TMP, TT2, TT2
vpshufb TMP, TT3, TT3
ROUND_00_15 TT0,(i*4+0)
ROUND_00_15 TT1,(i*4+1)
ROUND_00_15 TT2,(i*4+2)
ROUND_00_15 TT3,(i*4+3)
i = (i+1)
.endr
add $128, IDX
i = (i*4)
jmp Lrounds_16_xx
.align 16
Lrounds_16_xx:
.rep 16
ROUND_16_XX T1, i
i = (i+1)
.endr
cmp $0xa00,ROUND
jb Lrounds_16_xx
# add old digest
vpaddq _digest(%rsp), a, a
vpaddq _digest+1*SZ4(%rsp), b, b
vpaddq _digest+2*SZ4(%rsp), c, c
vpaddq _digest+3*SZ4(%rsp), d, d
vpaddq _digest+4*SZ4(%rsp), e, e
vpaddq _digest+5*SZ4(%rsp), f, f
vpaddq _digest+6*SZ4(%rsp), g, g
vpaddq _digest+7*SZ4(%rsp), h, h
sub $1, INP_SIZE # unit is blocks
jne lloop
# write back to memory (state object) the transposed digest
vmovdqu a, 0*SHA512_DIGEST_ROW_SIZE(STATE)
vmovdqu b, 1*SHA512_DIGEST_ROW_SIZE(STATE)
vmovdqu c, 2*SHA512_DIGEST_ROW_SIZE(STATE)
vmovdqu d, 3*SHA512_DIGEST_ROW_SIZE(STATE)
vmovdqu e, 4*SHA512_DIGEST_ROW_SIZE(STATE)
vmovdqu f, 5*SHA512_DIGEST_ROW_SIZE(STATE)
vmovdqu g, 6*SHA512_DIGEST_ROW_SIZE(STATE)
vmovdqu h, 7*SHA512_DIGEST_ROW_SIZE(STATE)
# update input data pointers
add IDX, inp0
mov inp0, _data_ptr+0*PTR_SZ(STATE)
add IDX, inp1
mov inp1, _data_ptr+1*PTR_SZ(STATE)
add IDX, inp2
mov inp2, _data_ptr+2*PTR_SZ(STATE)
add IDX, inp3
mov inp3, _data_ptr+3*PTR_SZ(STATE)
#;;;;;;;;;;;;;;;
#; Postamble
add $STACK_SPACE1, %rsp
# restore callee-saved clobbered registers
pop %r15
pop %r14
pop %r13
pop %r12
# outer calling routine restores XMM and other GP registers
ret
ENDPROC(sha512_x4_avx2)
.section .rodata.K512_4, "a", @progbits
.align 64
K512_4:
.octa 0x428a2f98d728ae22428a2f98d728ae22,\
0x428a2f98d728ae22428a2f98d728ae22
.octa 0x7137449123ef65cd7137449123ef65cd,\
0x7137449123ef65cd7137449123ef65cd
.octa 0xb5c0fbcfec4d3b2fb5c0fbcfec4d3b2f,\
0xb5c0fbcfec4d3b2fb5c0fbcfec4d3b2f
.octa 0xe9b5dba58189dbbce9b5dba58189dbbc,\
0xe9b5dba58189dbbce9b5dba58189dbbc
.octa 0x3956c25bf348b5383956c25bf348b538,\
0x3956c25bf348b5383956c25bf348b538
.octa 0x59f111f1b605d01959f111f1b605d019,\
0x59f111f1b605d01959f111f1b605d019
.octa 0x923f82a4af194f9b923f82a4af194f9b,\
0x923f82a4af194f9b923f82a4af194f9b
.octa 0xab1c5ed5da6d8118ab1c5ed5da6d8118,\
0xab1c5ed5da6d8118ab1c5ed5da6d8118
.octa 0xd807aa98a3030242d807aa98a3030242,\
0xd807aa98a3030242d807aa98a3030242
.octa 0x12835b0145706fbe12835b0145706fbe,\
0x12835b0145706fbe12835b0145706fbe
.octa 0x243185be4ee4b28c243185be4ee4b28c,\
0x243185be4ee4b28c243185be4ee4b28c
.octa 0x550c7dc3d5ffb4e2550c7dc3d5ffb4e2,\
0x550c7dc3d5ffb4e2550c7dc3d5ffb4e2
.octa 0x72be5d74f27b896f72be5d74f27b896f,\
0x72be5d74f27b896f72be5d74f27b896f
.octa 0x80deb1fe3b1696b180deb1fe3b1696b1,\
0x80deb1fe3b1696b180deb1fe3b1696b1
.octa 0x9bdc06a725c712359bdc06a725c71235,\
0x9bdc06a725c712359bdc06a725c71235
.octa 0xc19bf174cf692694c19bf174cf692694,\
0xc19bf174cf692694c19bf174cf692694
.octa 0xe49b69c19ef14ad2e49b69c19ef14ad2,\
0xe49b69c19ef14ad2e49b69c19ef14ad2
.octa 0xefbe4786384f25e3efbe4786384f25e3,\
0xefbe4786384f25e3efbe4786384f25e3
.octa 0x0fc19dc68b8cd5b50fc19dc68b8cd5b5,\
0x0fc19dc68b8cd5b50fc19dc68b8cd5b5
.octa 0x240ca1cc77ac9c65240ca1cc77ac9c65,\
0x240ca1cc77ac9c65240ca1cc77ac9c65
.octa 0x2de92c6f592b02752de92c6f592b0275,\
0x2de92c6f592b02752de92c6f592b0275
.octa 0x4a7484aa6ea6e4834a7484aa6ea6e483,\
0x4a7484aa6ea6e4834a7484aa6ea6e483
.octa 0x5cb0a9dcbd41fbd45cb0a9dcbd41fbd4,\
0x5cb0a9dcbd41fbd45cb0a9dcbd41fbd4
.octa 0x76f988da831153b576f988da831153b5,\
0x76f988da831153b576f988da831153b5
.octa 0x983e5152ee66dfab983e5152ee66dfab,\
0x983e5152ee66dfab983e5152ee66dfab
.octa 0xa831c66d2db43210a831c66d2db43210,\
0xa831c66d2db43210a831c66d2db43210
.octa 0xb00327c898fb213fb00327c898fb213f,\
0xb00327c898fb213fb00327c898fb213f
.octa 0xbf597fc7beef0ee4bf597fc7beef0ee4,\
0xbf597fc7beef0ee4bf597fc7beef0ee4
.octa 0xc6e00bf33da88fc2c6e00bf33da88fc2,\
0xc6e00bf33da88fc2c6e00bf33da88fc2
.octa 0xd5a79147930aa725d5a79147930aa725,\
0xd5a79147930aa725d5a79147930aa725
.octa 0x06ca6351e003826f06ca6351e003826f,\
0x06ca6351e003826f06ca6351e003826f
.octa 0x142929670a0e6e70142929670a0e6e70,\
0x142929670a0e6e70142929670a0e6e70
.octa 0x27b70a8546d22ffc27b70a8546d22ffc,\
0x27b70a8546d22ffc27b70a8546d22ffc
.octa 0x2e1b21385c26c9262e1b21385c26c926,\
0x2e1b21385c26c9262e1b21385c26c926
.octa 0x4d2c6dfc5ac42aed4d2c6dfc5ac42aed,\
0x4d2c6dfc5ac42aed4d2c6dfc5ac42aed
.octa 0x53380d139d95b3df53380d139d95b3df,\
0x53380d139d95b3df53380d139d95b3df
.octa 0x650a73548baf63de650a73548baf63de,\
0x650a73548baf63de650a73548baf63de
.octa 0x766a0abb3c77b2a8766a0abb3c77b2a8,\
0x766a0abb3c77b2a8766a0abb3c77b2a8
.octa 0x81c2c92e47edaee681c2c92e47edaee6,\
0x81c2c92e47edaee681c2c92e47edaee6
.octa 0x92722c851482353b92722c851482353b,\
0x92722c851482353b92722c851482353b
.octa 0xa2bfe8a14cf10364a2bfe8a14cf10364,\
0xa2bfe8a14cf10364a2bfe8a14cf10364
.octa 0xa81a664bbc423001a81a664bbc423001,\
0xa81a664bbc423001a81a664bbc423001
.octa 0xc24b8b70d0f89791c24b8b70d0f89791,\
0xc24b8b70d0f89791c24b8b70d0f89791
.octa 0xc76c51a30654be30c76c51a30654be30,\
0xc76c51a30654be30c76c51a30654be30
.octa 0xd192e819d6ef5218d192e819d6ef5218,\
0xd192e819d6ef5218d192e819d6ef5218
.octa 0xd69906245565a910d69906245565a910,\
0xd69906245565a910d69906245565a910
.octa 0xf40e35855771202af40e35855771202a,\
0xf40e35855771202af40e35855771202a
.octa 0x106aa07032bbd1b8106aa07032bbd1b8,\
0x106aa07032bbd1b8106aa07032bbd1b8
.octa 0x19a4c116b8d2d0c819a4c116b8d2d0c8,\
0x19a4c116b8d2d0c819a4c116b8d2d0c8
.octa 0x1e376c085141ab531e376c085141ab53,\
0x1e376c085141ab531e376c085141ab53
.octa 0x2748774cdf8eeb992748774cdf8eeb99,\
0x2748774cdf8eeb992748774cdf8eeb99
.octa 0x34b0bcb5e19b48a834b0bcb5e19b48a8,\
0x34b0bcb5e19b48a834b0bcb5e19b48a8
.octa 0x391c0cb3c5c95a63391c0cb3c5c95a63,\
0x391c0cb3c5c95a63391c0cb3c5c95a63
.octa 0x4ed8aa4ae3418acb4ed8aa4ae3418acb,\
0x4ed8aa4ae3418acb4ed8aa4ae3418acb
.octa 0x5b9cca4f7763e3735b9cca4f7763e373,\
0x5b9cca4f7763e3735b9cca4f7763e373
.octa 0x682e6ff3d6b2b8a3682e6ff3d6b2b8a3,\
0x682e6ff3d6b2b8a3682e6ff3d6b2b8a3
.octa 0x748f82ee5defb2fc748f82ee5defb2fc,\
0x748f82ee5defb2fc748f82ee5defb2fc
.octa 0x78a5636f43172f6078a5636f43172f60,\
0x78a5636f43172f6078a5636f43172f60
.octa 0x84c87814a1f0ab7284c87814a1f0ab72,\
0x84c87814a1f0ab7284c87814a1f0ab72
.octa 0x8cc702081a6439ec8cc702081a6439ec,\
0x8cc702081a6439ec8cc702081a6439ec
.octa 0x90befffa23631e2890befffa23631e28,\
0x90befffa23631e2890befffa23631e28
.octa 0xa4506cebde82bde9a4506cebde82bde9,\
0xa4506cebde82bde9a4506cebde82bde9
.octa 0xbef9a3f7b2c67915bef9a3f7b2c67915,\
0xbef9a3f7b2c67915bef9a3f7b2c67915
.octa 0xc67178f2e372532bc67178f2e372532b,\
0xc67178f2e372532bc67178f2e372532b
.octa 0xca273eceea26619cca273eceea26619c,\
0xca273eceea26619cca273eceea26619c
.octa 0xd186b8c721c0c207d186b8c721c0c207,\
0xd186b8c721c0c207d186b8c721c0c207
.octa 0xeada7dd6cde0eb1eeada7dd6cde0eb1e,\
0xeada7dd6cde0eb1eeada7dd6cde0eb1e
.octa 0xf57d4f7fee6ed178f57d4f7fee6ed178,\
0xf57d4f7fee6ed178f57d4f7fee6ed178
.octa 0x06f067aa72176fba06f067aa72176fba,\
0x06f067aa72176fba06f067aa72176fba
.octa 0x0a637dc5a2c898a60a637dc5a2c898a6,\
0x0a637dc5a2c898a60a637dc5a2c898a6
.octa 0x113f9804bef90dae113f9804bef90dae,\
0x113f9804bef90dae113f9804bef90dae
.octa 0x1b710b35131c471b1b710b35131c471b,\
0x1b710b35131c471b1b710b35131c471b
.octa 0x28db77f523047d8428db77f523047d84,\
0x28db77f523047d8428db77f523047d84
.octa 0x32caab7b40c7249332caab7b40c72493,\
0x32caab7b40c7249332caab7b40c72493
.octa 0x3c9ebe0a15c9bebc3c9ebe0a15c9bebc,\
0x3c9ebe0a15c9bebc3c9ebe0a15c9bebc
.octa 0x431d67c49c100d4c431d67c49c100d4c,\
0x431d67c49c100d4c431d67c49c100d4c
.octa 0x4cc5d4becb3e42b64cc5d4becb3e42b6,\
0x4cc5d4becb3e42b64cc5d4becb3e42b6
.octa 0x597f299cfc657e2a597f299cfc657e2a,\
0x597f299cfc657e2a597f299cfc657e2a
.octa 0x5fcb6fab3ad6faec5fcb6fab3ad6faec,\
0x5fcb6fab3ad6faec5fcb6fab3ad6faec
.octa 0x6c44198c4a4758176c44198c4a475817,\
0x6c44198c4a4758176c44198c4a475817
.section .rodata.cst32.PSHUFFLE_BYTE_FLIP_MASK, "aM", @progbits, 32
.align 32
PSHUFFLE_BYTE_FLIP_MASK: .octa 0x08090a0b0c0d0e0f0001020304050607
.octa 0x18191a1b1c1d1e1f1011121314151617
crypto/Kconfig
View file @ ab8085c1
......@@ -213,20 +213,6 @@ config CRYPTO_CRYPTD
converts an arbitrary synchronous software crypto algorithm
into an asynchronous algorithm that executes in a kernel thread.
config CRYPTO_MCRYPTD
tristate "Software async multi-buffer crypto daemon"
select CRYPTO_BLKCIPHER
select CRYPTO_HASH
select CRYPTO_MANAGER
select CRYPTO_WORKQUEUE
help
This is a generic software asynchronous crypto daemon that
provides the kernel thread to assist multi-buffer crypto
algorithms for submitting jobs and flushing jobs in multi-buffer
crypto algorithms. Multi-buffer crypto algorithms are executed
in the context of this kernel thread and drivers can post
their crypto request asynchronously to be processed by this daemon.
config CRYPTO_AUTHENC
tristate "Authenc support"
select CRYPTO_AEAD
......@@ -848,54 +834,6 @@ config CRYPTO_SHA1_PPC_SPE
SHA-1 secure hash standard (DFIPS 180-4) implemented
using powerpc SPE SIMD instruction set.
config CRYPTO_SHA1_MB
tristate "SHA1 digest algorithm (x86_64 Multi-Buffer, Experimental)"
depends on X86 && 64BIT
select CRYPTO_SHA1
select CRYPTO_HASH
select CRYPTO_MCRYPTD
help
SHA-1 secure hash standard (FIPS 180-1/DFIPS 180-2) implemented
using multi-buffer technique. This algorithm computes on
multiple data lanes concurrently with SIMD instructions for
better throughput. It should not be enabled by default but
used when there is significant amount of work to keep the keep
the data lanes filled to get performance benefit. If the data
lanes remain unfilled, a flush operation will be initiated to
process the crypto jobs, adding a slight latency.
config CRYPTO_SHA256_MB
tristate "SHA256 digest algorithm (x86_64 Multi-Buffer, Experimental)"
depends on X86 && 64BIT
select CRYPTO_SHA256
select CRYPTO_HASH
select CRYPTO_MCRYPTD
help
SHA-256 secure hash standard (FIPS 180-1/DFIPS 180-2) implemented
using multi-buffer technique. This algorithm computes on
multiple data lanes concurrently with SIMD instructions for
better throughput. It should not be enabled by default but
used when there is significant amount of work to keep the keep
the data lanes filled to get performance benefit. If the data
lanes remain unfilled, a flush operation will be initiated to
process the crypto jobs, adding a slight latency.
config CRYPTO_SHA512_MB
tristate "SHA512 digest algorithm (x86_64 Multi-Buffer, Experimental)"
depends on X86 && 64BIT
select CRYPTO_SHA512
select CRYPTO_HASH
select CRYPTO_MCRYPTD
help
SHA-512 secure hash standard (FIPS 180-1/DFIPS 180-2) implemented
using multi-buffer technique. This algorithm computes on
multiple data lanes concurrently with SIMD instructions for
better throughput. It should not be enabled by default but
used when there is significant amount of work to keep the keep
the data lanes filled to get performance benefit. If the data
lanes remain unfilled, a flush operation will be initiated to
process the crypto jobs, adding a slight latency.
config CRYPTO_SHA256
tristate "SHA224 and SHA256 digest algorithm"
select CRYPTO_HASH
......
crypto/Makefile
View file @ ab8085c1
......@@ -93,7 +93,6 @@ obj-$(CONFIG_CRYPTO_MORUS640) += morus640.o
obj-$(CONFIG_CRYPTO_MORUS1280) += morus1280.o
obj-$(CONFIG_CRYPTO_PCRYPT) += pcrypt.o
obj-$(CONFIG_CRYPTO_CRYPTD) += cryptd.o
obj-$(CONFIG_CRYPTO_MCRYPTD) += mcryptd.o
obj-$(CONFIG_CRYPTO_DES) += des_generic.o
obj-$(CONFIG_CRYPTO_FCRYPT) += fcrypt.o
obj-$(CONFIG_CRYPTO_BLOWFISH) += blowfish_generic.o
......
crypto/mcryptd.c deleted 100644 → 0
View file @ 820684cc
/*
* Software multibuffer async crypto daemon.
*
* Copyright (c) 2014 Tim Chen <tim.c.chen@linux.intel.com>
*
* Adapted from crypto daemon.
*
* 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.
*
*/
#include <crypto/algapi.h>
#include <crypto/internal/hash.h>
#include <crypto/internal/aead.h>
#include <crypto/mcryptd.h>
#include <crypto/crypto_wq.h>
#include <linux/err.h>
#include <linux/init.h>
#include <linux/kernel.h>
#include <linux/list.h>
#include <linux/module.h>
#include <linux/scatterlist.h>
#include <linux/sched.h>
#include <linux/sched/stat.h>
#include <linux/slab.h>
#define MCRYPTD_MAX_CPU_QLEN 100
#define MCRYPTD_BATCH 9
static void *mcryptd_alloc_instance(struct crypto_alg *alg, unsigned int head,
unsigned int tail);
struct mcryptd_flush_list {
struct list_head list;
struct mutex lock;
};
static struct mcryptd_flush_list __percpu *mcryptd_flist;
struct hashd_instance_ctx {
struct crypto_ahash_spawn spawn;
struct mcryptd_queue *queue;
};
static void mcryptd_queue_worker(struct work_struct *work);
void mcryptd_arm_flusher(struct mcryptd_alg_cstate *cstate, unsigned long delay)
{
struct mcryptd_flush_list *flist;
if (!cstate->flusher_engaged) {
/* put the flusher on the flush list */
flist = per_cpu_ptr(mcryptd_flist, smp_processor_id());
mutex_lock(&flist->lock);
list_add_tail(&cstate->flush_list, &flist->list);
cstate->flusher_engaged = true;
cstate->next_flush = jiffies + delay;
queue_delayed_work_on(smp_processor_id(), kcrypto_wq,
&cstate->flush, delay);
mutex_unlock(&flist->lock);
}
}
EXPORT_SYMBOL(mcryptd_arm_flusher);
static int mcryptd_init_queue(struct mcryptd_queue *queue,
unsigned int max_cpu_qlen)
{
int cpu;
struct mcryptd_cpu_queue *cpu_queue;
queue->cpu_queue = alloc_percpu(struct mcryptd_cpu_queue);
pr_debug("mqueue:%p mcryptd_cpu_queue %p\n", queue, queue->cpu_queue);
if (!queue->cpu_queue)
return -ENOMEM;
for_each_possible_cpu(cpu) {
cpu_queue = per_cpu_ptr(queue->cpu_queue, cpu);
pr_debug("cpu_queue #%d %p\n", cpu, queue->cpu_queue);
crypto_init_queue(&cpu_queue->queue, max_cpu_qlen);
INIT_WORK(&cpu_queue->work, mcryptd_queue_worker);
spin_lock_init(&cpu_queue->q_lock);
}
return 0;
}
static void mcryptd_fini_queue(struct mcryptd_queue *queue)
{
int cpu;
struct mcryptd_cpu_queue *cpu_queue;
for_each_possible_cpu(cpu) {
cpu_queue = per_cpu_ptr(queue->cpu_queue, cpu);
BUG_ON(cpu_queue->queue.qlen);
}
free_percpu(queue->cpu_queue);
}
static int mcryptd_enqueue_request(struct mcryptd_queue *queue,
struct crypto_async_request *request,
struct mcryptd_hash_request_ctx *rctx)
{
int cpu, err;
struct mcryptd_cpu_queue *cpu_queue;
cpu_queue = raw_cpu_ptr(queue->cpu_queue);
spin_lock(&cpu_queue->q_lock);
cpu = smp_processor_id();
rctx->tag.cpu = smp_processor_id();
err = crypto_enqueue_request(&cpu_queue->queue, request);
pr_debug("enqueue request: cpu %d cpu_queue %p request %p\n",
cpu, cpu_queue, request);
spin_unlock(&cpu_queue->q_lock);
queue_work_on(cpu, kcrypto_wq, &cpu_queue->work);
return err;
}
/*
* Try to opportunisticlly flush the partially completed jobs if
* crypto daemon is the only task running.
*/
static void mcryptd_opportunistic_flush(void)
{
struct mcryptd_flush_list *flist;
struct mcryptd_alg_cstate *cstate;
flist = per_cpu_ptr(mcryptd_flist, smp_processor_id());
while (single_task_running()) {
mutex_lock(&flist->lock);
cstate = list_first_entry_or_null(&flist->list,
struct mcryptd_alg_cstate, flush_list);
if (!cstate || !cstate->flusher_engaged) {
mutex_unlock(&flist->lock);
return;
}
list_del(&cstate->flush_list);
cstate->flusher_engaged = false;
mutex_unlock(&flist->lock);
cstate->alg_state->flusher(cstate);
}
}
/*
* Called in workqueue context, do one real cryption work (via
* req->complete) and reschedule itself if there are more work to
* do.
*/
static void mcryptd_queue_worker(struct work_struct *work)
{
struct mcryptd_cpu_queue *cpu_queue;
struct crypto_async_request *req, *backlog;
int i;
/*
* Need to loop through more than once for multi-buffer to
* be effective.
*/
cpu_queue = container_of(work, struct mcryptd_cpu_queue, work);
i = 0;
while (i < MCRYPTD_BATCH || single_task_running()) {
spin_lock_bh(&cpu_queue->q_lock);
backlog = crypto_get_backlog(&cpu_queue->queue);
req = crypto_dequeue_request(&cpu_queue->queue);
spin_unlock_bh(&cpu_queue->q_lock);
if (!req) {
mcryptd_opportunistic_flush();
return;
}
if (backlog)
backlog->complete(backlog, -EINPROGRESS);
req->complete(req, 0);
if (!cpu_queue->queue.qlen)
return;
++i;
}
if (cpu_queue->queue.qlen)
queue_work_on(smp_processor_id(), kcrypto_wq, &cpu_queue->work);
}
void mcryptd_flusher(struct work_struct *__work)
{
struct mcryptd_alg_cstate *alg_cpu_state;
struct mcryptd_alg_state *alg_state;
struct mcryptd_flush_list *flist;
int cpu;
cpu = smp_processor_id();
alg_cpu_state = container_of(to_delayed_work(__work),
struct mcryptd_alg_cstate, flush);
alg_state = alg_cpu_state->alg_state;
if (alg_cpu_state->cpu != cpu)
pr_debug("mcryptd error: work on cpu %d, should be cpu %d\n",
cpu, alg_cpu_state->cpu);
if (alg_cpu_state->flusher_engaged) {
flist = per_cpu_ptr(mcryptd_flist, cpu);
mutex_lock(&flist->lock);
list_del(&alg_cpu_state->flush_list);
alg_cpu_state->flusher_engaged = false;
mutex_unlock(&flist->lock);
alg_state->flusher(alg_cpu_state);
}
}
EXPORT_SYMBOL_GPL(mcryptd_flusher);
static inline struct mcryptd_queue *mcryptd_get_queue(struct crypto_tfm *tfm)
{
struct crypto_instance *inst = crypto_tfm_alg_instance(tfm);
struct mcryptd_instance_ctx *ictx = crypto_instance_ctx(inst);
return ictx->queue;
}
static void *mcryptd_alloc_instance(struct crypto_alg *alg, unsigned int head,
unsigned int tail)
{
char *p;
struct crypto_instance *inst;
int err;
p = kzalloc(head + sizeof(*inst) + tail, GFP_KERNEL);
if (!p)
return ERR_PTR(-ENOMEM);
inst = (void *)(p + head);
err = -ENAMETOOLONG;
if (snprintf(inst->alg.cra_driver_name, CRYPTO_MAX_ALG_NAME,
"mcryptd(%s)", alg->cra_driver_name) >= CRYPTO_MAX_ALG_NAME)
goto out_free_inst;
memcpy(inst->alg.cra_name, alg->cra_name, CRYPTO_MAX_ALG_NAME);
inst->alg.cra_priority = alg->cra_priority + 50;
inst->alg.cra_blocksize = alg->cra_blocksize;
inst->alg.cra_alignmask = alg->cra_alignmask;
out:
return p;
out_free_inst:
kfree(p);
p = ERR_PTR(err);
goto out;
}
static inline bool mcryptd_check_internal(struct rtattr **tb, u32 *type,
u32 *mask)
{
struct crypto_attr_type *algt;
algt = crypto_get_attr_type(tb);
if (IS_ERR(algt))
return false;
*type |= algt->type & CRYPTO_ALG_INTERNAL;
*mask |= algt->mask & CRYPTO_ALG_INTERNAL;
if (*type & *mask & CRYPTO_ALG_INTERNAL)
return true;
else
return false;
}
static int mcryptd_hash_init_tfm(struct crypto_tfm *tfm)
{
struct crypto_instance *inst = crypto_tfm_alg_instance(tfm);
struct hashd_instance_ctx *ictx = crypto_instance_ctx(inst);
struct crypto_ahash_spawn *spawn = &ictx->spawn;
struct mcryptd_hash_ctx *ctx = crypto_tfm_ctx(tfm);
struct crypto_ahash *hash;
hash = crypto_spawn_ahash(spawn);
if (IS_ERR(hash))
return PTR_ERR(hash);
ctx->child = hash;
crypto_ahash_set_reqsize(__crypto_ahash_cast(tfm),
sizeof(struct mcryptd_hash_request_ctx) +
crypto_ahash_reqsize(hash));
return 0;
}
static void mcryptd_hash_exit_tfm(struct crypto_tfm *tfm)
{
struct mcryptd_hash_ctx *ctx = crypto_tfm_ctx(tfm);
crypto_free_ahash(ctx->child);
}
static int mcryptd_hash_setkey(struct crypto_ahash *parent,
const u8 *key, unsigned int keylen)
{
struct mcryptd_hash_ctx *ctx = crypto_ahash_ctx(parent);
struct crypto_ahash *child = ctx->child;
int err;
crypto_ahash_clear_flags(child, CRYPTO_TFM_REQ_MASK);
crypto_ahash_set_flags(child, crypto_ahash_get_flags(parent) &
CRYPTO_TFM_REQ_MASK);
err = crypto_ahash_setkey(child, key, keylen);
crypto_ahash_set_flags(parent, crypto_ahash_get_flags(child) &
CRYPTO_TFM_RES_MASK);
return err;
}
static int mcryptd_hash_enqueue(struct ahash_request *req,
crypto_completion_t complete)
{
int ret;
struct mcryptd_hash_request_ctx *rctx = ahash_request_ctx(req);
struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
struct mcryptd_queue *queue =
mcryptd_get_queue(crypto_ahash_tfm(tfm));
rctx->complete = req->base.complete;
req->base.complete = complete;
ret = mcryptd_enqueue_request(queue, &req->base, rctx);
return ret;
}
static void mcryptd_hash_init(struct crypto_async_request *req_async, int err)
{
struct mcryptd_hash_ctx *ctx = crypto_tfm_ctx(req_async->tfm);
struct crypto_ahash *child = ctx->child;
struct ahash_request *req = ahash_request_cast(req_async);
struct mcryptd_hash_request_ctx *rctx = ahash_request_ctx(req);
struct ahash_request *desc = &rctx->areq;
if (unlikely(err == -EINPROGRESS))
goto out;
ahash_request_set_tfm(desc, child);
ahash_request_set_callback(desc, CRYPTO_TFM_REQ_MAY_SLEEP,
rctx->complete, req_async);
rctx->out = req->result;
err = crypto_ahash_init(desc);
out:
local_bh_disable();
rctx->complete(&req->base, err);
local_bh_enable();
}
static int mcryptd_hash_init_enqueue(struct ahash_request *req)
{
return mcryptd_hash_enqueue(req, mcryptd_hash_init);
}
static void mcryptd_hash_update(struct crypto_async_request *req_async, int err)
{
struct ahash_request *req = ahash_request_cast(req_async);
struct mcryptd_hash_request_ctx *rctx = ahash_request_ctx(req);
if (unlikely(err == -EINPROGRESS))
goto out;
rctx->out = req->result;
err = crypto_ahash_update(&rctx->areq);
if (err) {
req->base.complete = rctx->complete;
goto out;
}
return;
out:
local_bh_disable();
rctx->complete(&req->base, err);
local_bh_enable();
}
static int mcryptd_hash_update_enqueue(struct ahash_request *req)
{
return mcryptd_hash_enqueue(req, mcryptd_hash_update);
}
static void mcryptd_hash_final(struct crypto_async_request *req_async, int err)
{
struct ahash_request *req = ahash_request_cast(req_async);
struct mcryptd_hash_request_ctx *rctx = ahash_request_ctx(req);
if (unlikely(err == -EINPROGRESS))
goto out;
rctx->out = req->result;
err = crypto_ahash_final(&rctx->areq);
if (err) {
req->base.complete = rctx->complete;
goto out;
}
return;
out:
local_bh_disable();
rctx->complete(&req->base, err);
local_bh_enable();
}
static int mcryptd_hash_final_enqueue(struct ahash_request *req)
{
return mcryptd_hash_enqueue(req, mcryptd_hash_final);
}
static void mcryptd_hash_finup(struct crypto_async_request *req_async, int err)
{
struct ahash_request *req = ahash_request_cast(req_async);
struct mcryptd_hash_request_ctx *rctx = ahash_request_ctx(req);
if (unlikely(err == -EINPROGRESS))
goto out;
rctx->out = req->result;
err = crypto_ahash_finup(&rctx->areq);
if (err) {
req->base.complete = rctx->complete;
goto out;
}
return;
out:
local_bh_disable();
rctx->complete(&req->base, err);
local_bh_enable();
}
static int mcryptd_hash_finup_enqueue(struct ahash_request *req)
{
return mcryptd_hash_enqueue(req, mcryptd_hash_finup);
}
static void mcryptd_hash_digest(struct crypto_async_request *req_async, int err)
{
struct mcryptd_hash_ctx *ctx = crypto_tfm_ctx(req_async->tfm);
struct crypto_ahash *child = ctx->child;
struct ahash_request *req = ahash_request_cast(req_async);
struct mcryptd_hash_request_ctx *rctx = ahash_request_ctx(req);
struct ahash_request *desc = &rctx->areq;
if (unlikely(err == -EINPROGRESS))
goto out;
ahash_request_set_tfm(desc, child);
ahash_request_set_callback(desc, CRYPTO_TFM_REQ_MAY_SLEEP,
rctx->complete, req_async);
rctx->out = req->result;
err = crypto_ahash_init(desc) ?: crypto_ahash_finup(desc);
out:
local_bh_disable();
rctx->complete(&req->base, err);
local_bh_enable();
}
static int mcryptd_hash_digest_enqueue(struct ahash_request *req)
{
return mcryptd_hash_enqueue(req, mcryptd_hash_digest);
}
static int mcryptd_hash_export(struct ahash_request *req, void *out)
{
struct mcryptd_hash_request_ctx *rctx = ahash_request_ctx(req);
return crypto_ahash_export(&rctx->areq, out);
}
static int mcryptd_hash_import(struct ahash_request *req, const void *in)
{
struct mcryptd_hash_request_ctx *rctx = ahash_request_ctx(req);
return crypto_ahash_import(&rctx->areq, in);
}
static int mcryptd_create_hash(struct crypto_template *tmpl, struct rtattr **tb,
struct mcryptd_queue *queue)
{
struct hashd_instance_ctx *ctx;
struct ahash_instance *inst;
struct hash_alg_common *halg;
struct crypto_alg *alg;
u32 type = 0;
u32 mask = 0;
int err;
if (!mcryptd_check_internal(tb, &type, &mask))
return -EINVAL;
halg = ahash_attr_alg(tb[1], type, mask);
if (IS_ERR(halg))
return PTR_ERR(halg);
alg = &halg->base;
pr_debug("crypto: mcryptd hash alg: %s\n", alg->cra_name);
inst = mcryptd_alloc_instance(alg, ahash_instance_headroom(),
sizeof(*ctx));
err = PTR_ERR(inst);
if (IS_ERR(inst))
goto out_put_alg;
ctx = ahash_instance_ctx(inst);
ctx->queue = queue;
err = crypto_init_ahash_spawn(&ctx->spawn, halg,
ahash_crypto_instance(inst));
if (err)
goto out_free_inst;
inst->alg.halg.base.cra_flags = CRYPTO_ALG_ASYNC |
(alg->cra_flags & (CRYPTO_ALG_INTERNAL |
CRYPTO_ALG_OPTIONAL_KEY));
inst->alg.halg.digestsize = halg->digestsize;
inst->alg.halg.statesize = halg->statesize;
inst->alg.halg.base.cra_ctxsize = sizeof(struct mcryptd_hash_ctx);
inst->alg.halg.base.cra_init = mcryptd_hash_init_tfm;
inst->alg.halg.base.cra_exit = mcryptd_hash_exit_tfm;
inst->alg.init = mcryptd_hash_init_enqueue;
inst->alg.update = mcryptd_hash_update_enqueue;
inst->alg.final = mcryptd_hash_final_enqueue;
inst->alg.finup = mcryptd_hash_finup_enqueue;
inst->alg.export = mcryptd_hash_export;
inst->alg.import = mcryptd_hash_import;
if (crypto_hash_alg_has_setkey(halg))
inst->alg.setkey = mcryptd_hash_setkey;
inst->alg.digest = mcryptd_hash_digest_enqueue;
err = ahash_register_instance(tmpl, inst);
if (err) {
crypto_drop_ahash(&ctx->spawn);
out_free_inst:
kfree(inst);
}
out_put_alg:
crypto_mod_put(alg);
return err;
}
static struct mcryptd_queue mqueue;
static int mcryptd_create(struct crypto_template *tmpl, struct rtattr **tb)
{
struct crypto_attr_type *algt;
algt = crypto_get_attr_type(tb);
if (IS_ERR(algt))
return PTR_ERR(algt);
switch (algt->type & algt->mask & CRYPTO_ALG_TYPE_MASK) {
case CRYPTO_ALG_TYPE_DIGEST:
return mcryptd_create_hash(tmpl, tb, &mqueue);
break;
}
return -EINVAL;
}
static void mcryptd_free(struct crypto_instance *inst)
{
struct mcryptd_instance_ctx *ctx = crypto_instance_ctx(inst);
struct hashd_instance_ctx *hctx = crypto_instance_ctx(inst);
switch (inst->alg.cra_flags & CRYPTO_ALG_TYPE_MASK) {
case CRYPTO_ALG_TYPE_AHASH:
crypto_drop_ahash(&hctx->spawn);
kfree(ahash_instance(inst));
return;
default:
crypto_drop_spawn(&ctx->spawn);
kfree(inst);
}
}
static struct crypto_template mcryptd_tmpl = {
.name = "mcryptd",
.create = mcryptd_create,
.free = mcryptd_free,
.module = THIS_MODULE,
};
struct mcryptd_ahash *mcryptd_alloc_ahash(const char *alg_name,
u32 type, u32 mask)
{
char mcryptd_alg_name[CRYPTO_MAX_ALG_NAME];
struct crypto_ahash *tfm;
if (snprintf(mcryptd_alg_name, CRYPTO_MAX_ALG_NAME,
"mcryptd(%s)", alg_name) >= CRYPTO_MAX_ALG_NAME)
return ERR_PTR(-EINVAL);
tfm = crypto_alloc_ahash(mcryptd_alg_name, type, mask);
if (IS_ERR(tfm))
return ERR_CAST(tfm);
if (tfm->base.__crt_alg->cra_module != THIS_MODULE) {
crypto_free_ahash(tfm);
return ERR_PTR(-EINVAL);
}
return __mcryptd_ahash_cast(tfm);
}
EXPORT_SYMBOL_GPL(mcryptd_alloc_ahash);
struct crypto_ahash *mcryptd_ahash_child(struct mcryptd_ahash *tfm)
{
struct mcryptd_hash_ctx *ctx = crypto_ahash_ctx(&tfm->base);
return ctx->child;
}
EXPORT_SYMBOL_GPL(mcryptd_ahash_child);
struct ahash_request *mcryptd_ahash_desc(struct ahash_request *req)
{
struct mcryptd_hash_request_ctx *rctx = ahash_request_ctx(req);
return &rctx->areq;
}
EXPORT_SYMBOL_GPL(mcryptd_ahash_desc);
void mcryptd_free_ahash(struct mcryptd_ahash *tfm)
{
crypto_free_ahash(&tfm->base);
}
EXPORT_SYMBOL_GPL(mcryptd_free_ahash);
static int __init mcryptd_init(void)
{
int err, cpu;
struct mcryptd_flush_list *flist;
mcryptd_flist = alloc_percpu(struct mcryptd_flush_list);
for_each_possible_cpu(cpu) {
flist = per_cpu_ptr(mcryptd_flist, cpu);
INIT_LIST_HEAD(&flist->list);
mutex_init(&flist->lock);
}
err = mcryptd_init_queue(&mqueue, MCRYPTD_MAX_CPU_QLEN);
if (err) {
free_percpu(mcryptd_flist);
return err;
}
err = crypto_register_template(&mcryptd_tmpl);
if (err) {
mcryptd_fini_queue(&mqueue);
free_percpu(mcryptd_flist);
}
return err;
}
static void __exit mcryptd_exit(void)
{
mcryptd_fini_queue(&mqueue);
crypto_unregister_template(&mcryptd_tmpl);
free_percpu(mcryptd_flist);
}
subsys_initcall(mcryptd_init);
module_exit(mcryptd_exit);
MODULE_LICENSE("GPL");
MODULE_DESCRIPTION("Software async multibuffer crypto daemon");
MODULE_ALIAS_CRYPTO("mcryptd");
include/crypto/mcryptd.h deleted 100644 → 0
View file @ 820684cc
/* SPDX-License-Identifier: GPL-2.0 */
/*
* Software async multibuffer crypto daemon headers
*
* Author:
* Tim Chen <tim.c.chen@linux.intel.com>
*
* Copyright (c) 2014, Intel Corporation.
*/
#ifndef _CRYPTO_MCRYPT_H
#define _CRYPTO_MCRYPT_H
#include <linux/crypto.h>
#include <linux/kernel.h>
#include <crypto/hash.h>
struct mcryptd_ahash {
struct crypto_ahash base;
};
static inline struct mcryptd_ahash *__mcryptd_ahash_cast(
struct crypto_ahash *tfm)
{
return (struct mcryptd_ahash *)tfm;
}
struct mcryptd_cpu_queue {
struct crypto_queue queue;
spinlock_t q_lock;
struct work_struct work;
};
struct mcryptd_queue {
struct mcryptd_cpu_queue __percpu *cpu_queue;
};
struct mcryptd_instance_ctx {
struct crypto_spawn spawn;
struct mcryptd_queue *queue;
};
struct mcryptd_hash_ctx {
struct crypto_ahash *child;
struct mcryptd_alg_state *alg_state;
};
struct mcryptd_tag {
/* seq number of request */
unsigned seq_num;
/* arrival time of request */
unsigned long arrival;
unsigned long expire;
int cpu;
};
struct mcryptd_hash_request_ctx {
struct list_head waiter;
crypto_completion_t complete;
struct mcryptd_tag tag;
struct crypto_hash_walk walk;
u8 *out;
int flag;
struct ahash_request areq;
};
struct mcryptd_ahash *mcryptd_alloc_ahash(const char *alg_name,
u32 type, u32 mask);
struct crypto_ahash *mcryptd_ahash_child(struct mcryptd_ahash *tfm);
struct ahash_request *mcryptd_ahash_desc(struct ahash_request *req);
void mcryptd_free_ahash(struct mcryptd_ahash *tfm);
void mcryptd_flusher(struct work_struct *work);
enum mcryptd_req_type {
MCRYPTD_NONE,
MCRYPTD_UPDATE,
MCRYPTD_FINUP,
MCRYPTD_DIGEST,
MCRYPTD_FINAL
};
struct mcryptd_alg_cstate {
unsigned long next_flush;
unsigned next_seq_num;
bool flusher_engaged;
struct delayed_work flush;
int cpu;
struct mcryptd_alg_state *alg_state;
void *mgr;
spinlock_t work_lock;
struct list_head work_list;
struct list_head flush_list;
};
struct mcryptd_alg_state {
struct mcryptd_alg_cstate __percpu *alg_cstate;
unsigned long (*flusher)(struct mcryptd_alg_cstate *cstate);
};
/* return delay in jiffies from current time */
static inline unsigned long get_delay(unsigned long t)
{
long delay;
delay = (long) t - (long) jiffies;
if (delay <= 0)
return 0;
else
return (unsigned long) delay;
}
void mcryptd_arm_flusher(struct mcryptd_alg_cstate *cstate, unsigned long delay);
#endif
Markdown is supported
0% or
You are about to add 0 people to the discussion. Proceed with caution.
Finish editing this message first!
Please register or to comment
GitLab Nexedi Edition | About GitLab | About Nexedi | 沪ICP备2021021310号-2 | 沪ICP备2021021310号-7