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crypto: arm64 - convert to use crypto_simd_usable()

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Replace all calls to may_use_simd() in the arm64 crypto code with
crypto_simd_usable(), in order to allow testing the no-SIMD code paths.

Signed-off-by: Eric Biggers <ebiggers@google.com>
Reviewed-by: Ard Biesheuvel <ard.biesheuvel@linaro.org>
Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au>
This commit is contained in:
Eric Biggers 2019-03-12 22:12:50 -07:00 committed by Herbert Xu
parent 99680c5e91
commit e52b7023cd
15 changed files with 47 additions and 34 deletions
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7
arch/arm64/crypto/aes-ce-ccm-glue.c
View File

@ -14,6 +14,7 @@
#include <crypto/aes.h>
#include <crypto/scatterwalk.h>
#include <crypto/internal/aead.h>
#include <crypto/internal/simd.h>
#include <crypto/internal/skcipher.h>
#include <linux/module.h>
@ -109,7 +110,7 @@ static int ccm_init_mac(struct aead_request *req, u8 maciv[], u32 msglen)
static void ccm_update_mac(struct crypto_aes_ctx *key, u8 mac[], u8 const in[],
u32 abytes, u32 *macp)
{
if (may_use_simd()) {
if (crypto_simd_usable()) {
kernel_neon_begin();
ce_aes_ccm_auth_data(mac, in, abytes, macp, key->key_enc,
num_rounds(key));
@ -255,7 +256,7 @@ static int ccm_encrypt(struct aead_request *req)
err = skcipher_walk_aead_encrypt(&walk, req, false);
if (may_use_simd()) {
if (crypto_simd_usable()) {
while (walk.nbytes) {
u32 tail = walk.nbytes % AES_BLOCK_SIZE;
@ -313,7 +314,7 @@ static int ccm_decrypt(struct aead_request *req)
err = skcipher_walk_aead_decrypt(&walk, req, false);
if (may_use_simd()) {
if (crypto_simd_usable()) {
while (walk.nbytes) {
u32 tail = walk.nbytes % AES_BLOCK_SIZE;

5
arch/arm64/crypto/aes-ce-glue.c
View File

@ -12,6 +12,7 @@
#include <asm/simd.h>
#include <asm/unaligned.h>
#include <crypto/aes.h>
#include <crypto/internal/simd.h>
#include <linux/cpufeature.h>
#include <linux/crypto.h>
#include <linux/module.h>
@ -52,7 +53,7 @@ static void aes_cipher_encrypt(struct crypto_tfm *tfm, u8 dst[], u8 const src[])
{
struct crypto_aes_ctx *ctx = crypto_tfm_ctx(tfm);
if (!may_use_simd()) {
if (!crypto_simd_usable()) {
__aes_arm64_encrypt(ctx->key_enc, dst, src, num_rounds(ctx));
return;
}
@ -66,7 +67,7 @@ static void aes_cipher_decrypt(struct crypto_tfm *tfm, u8 dst[], u8 const src[])
{
struct crypto_aes_ctx *ctx = crypto_tfm_ctx(tfm);
if (!may_use_simd()) {
if (!crypto_simd_usable()) {
__aes_arm64_decrypt(ctx->key_dec, dst, src, num_rounds(ctx));
return;
}

4
arch/arm64/crypto/aes-glue.c
View File

@ -405,7 +405,7 @@ static int ctr_encrypt_sync(struct skcipher_request *req)
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct crypto_aes_ctx *ctx = crypto_skcipher_ctx(tfm);
if (!may_use_simd())
if (!crypto_simd_usable())
return aes_ctr_encrypt_fallback(ctx, req);
return ctr_encrypt(req);
@ -642,7 +642,7 @@ static void mac_do_update(struct crypto_aes_ctx *ctx, u8 const in[], int blocks,
{
int rounds = 6 + ctx->key_length / 4;
if (may_use_simd()) {
if (crypto_simd_usable()) {
kernel_neon_begin();
aes_mac_update(in, ctx->key_enc, rounds, blocks, dg, enc_before,
enc_after);

2
arch/arm64/crypto/aes-neonbs-glue.c
View File

@ -288,7 +288,7 @@ static int ctr_encrypt_sync(struct skcipher_request *req)
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct aesbs_ctr_ctx *ctx = crypto_skcipher_ctx(tfm);
if (!may_use_simd())
if (!crypto_simd_usable())
return aes_ctr_encrypt_fallback(&ctx->fallback, req);
return ctr_encrypt(req);

5
arch/arm64/crypto/chacha-neon-glue.c
View File

@ -21,6 +21,7 @@
#include <crypto/algapi.h>
#include <crypto/chacha.h>
#include <crypto/internal/simd.h>
#include <crypto/internal/skcipher.h>
#include <linux/kernel.h>
#include <linux/module.h>
@ -90,7 +91,7 @@ static int chacha_neon(struct skcipher_request *req)
struct crypto_skcipher *tfm = crypto_skcipher_reqtfm(req);
struct chacha_ctx *ctx = crypto_skcipher_ctx(tfm);
if (req->cryptlen <= CHACHA_BLOCK_SIZE || !may_use_simd())
if (req->cryptlen <= CHACHA_BLOCK_SIZE || !crypto_simd_usable())
return crypto_chacha_crypt(req);
return chacha_neon_stream_xor(req, ctx, req->iv);
@ -104,7 +105,7 @@ static int xchacha_neon(struct skcipher_request *req)
u32 state[16];
u8 real_iv[16];
if (req->cryptlen <= CHACHA_BLOCK_SIZE || !may_use_simd())
if (req->cryptlen <= CHACHA_BLOCK_SIZE || !crypto_simd_usable())
return crypto_xchacha_crypt(req);
crypto_chacha_init(state, ctx, req->iv);

5
arch/arm64/crypto/crct10dif-ce-glue.c
View File

@ -16,6 +16,7 @@
#include <linux/string.h>
#include <crypto/internal/hash.h>
#include <crypto/internal/simd.h>
#include <asm/neon.h>
#include <asm/simd.h>
@ -38,7 +39,7 @@ static int crct10dif_update_pmull_p8(struct shash_desc *desc, const u8 *data,
{
u16 *crc = shash_desc_ctx(desc);
if (length >= CRC_T10DIF_PMULL_CHUNK_SIZE && may_use_simd()) {
if (length >= CRC_T10DIF_PMULL_CHUNK_SIZE && crypto_simd_usable()) {
kernel_neon_begin();
*crc = crc_t10dif_pmull_p8(*crc, data, length);
kernel_neon_end();
@ -54,7 +55,7 @@ static int crct10dif_update_pmull_p64(struct shash_desc *desc, const u8 *data,
{
u16 *crc = shash_desc_ctx(desc);
if (length >= CRC_T10DIF_PMULL_CHUNK_SIZE && may_use_simd()) {
if (length >= CRC_T10DIF_PMULL_CHUNK_SIZE && crypto_simd_usable()) {
kernel_neon_begin();
*crc = crc_t10dif_pmull_p64(*crc, data, length);
kernel_neon_end();

7
arch/arm64/crypto/ghash-ce-glue.c
View File

@ -17,6 +17,7 @@
#include <crypto/gf128mul.h>
#include <crypto/internal/aead.h>
#include <crypto/internal/hash.h>
#include <crypto/internal/simd.h>
#include <crypto/internal/skcipher.h>
#include <crypto/scatterwalk.h>
#include <linux/cpufeature.h>
@ -89,7 +90,7 @@ static void ghash_do_update(int blocks, u64 dg[], const char *src,
struct ghash_key const *k,
const char *head))
{
if (likely(may_use_simd())) {
if (likely(crypto_simd_usable())) {
kernel_neon_begin();
simd_update(blocks, dg, src, key, head);
kernel_neon_end();
@ -441,7 +442,7 @@ static int gcm_encrypt(struct aead_request *req)
err = skcipher_walk_aead_encrypt(&walk, req, false);
if (likely(may_use_simd() && walk.total >= 2 * AES_BLOCK_SIZE)) {
if (likely(crypto_simd_usable() && walk.total >= 2 * AES_BLOCK_SIZE)) {
u32 const *rk = NULL;
kernel_neon_begin();
@ -565,7 +566,7 @@ static int gcm_decrypt(struct aead_request *req)
err = skcipher_walk_aead_decrypt(&walk, req, false);
if (likely(may_use_simd() && walk.total >= 2 * AES_BLOCK_SIZE)) {
if (likely(crypto_simd_usable() && walk.total >= 2 * AES_BLOCK_SIZE)) {
u32 const *rk = NULL;
kernel_neon_begin();

3
arch/arm64/crypto/nhpoly1305-neon-glue.c
View File

@ -9,6 +9,7 @@
#include <asm/neon.h>
#include <asm/simd.h>
#include <crypto/internal/hash.h>
#include <crypto/internal/simd.h>
#include <crypto/nhpoly1305.h>
#include <linux/module.h>
@ -25,7 +26,7 @@ static void _nh_neon(const u32 *key, const u8 *message, size_t message_len,
static int nhpoly1305_neon_update(struct shash_desc *desc,
const u8 *src, unsigned int srclen)
{
if (srclen < 64 || !may_use_simd())
if (srclen < 64 || !crypto_simd_usable())
return crypto_nhpoly1305_update(desc, src, srclen);
do {

7
arch/arm64/crypto/sha1-ce-glue.c
View File

@ -12,6 +12,7 @@
#include <asm/simd.h>
#include <asm/unaligned.h>
#include <crypto/internal/hash.h>
#include <crypto/internal/simd.h>
#include <crypto/sha.h>
#include <crypto/sha1_base.h>
#include <linux/cpufeature.h>
@ -38,7 +39,7 @@ static int sha1_ce_update(struct shash_desc *desc, const u8 *data,
{
struct sha1_ce_state *sctx = shash_desc_ctx(desc);
if (!may_use_simd())
if (!crypto_simd_usable())
return crypto_sha1_update(desc, data, len);
sctx->finalize = 0;
@ -56,7 +57,7 @@ static int sha1_ce_finup(struct shash_desc *desc, const u8 *data,
struct sha1_ce_state *sctx = shash_desc_ctx(desc);
bool finalize = !sctx->sst.count && !(len % SHA1_BLOCK_SIZE);
if (!may_use_simd())
if (!crypto_simd_usable())
return crypto_sha1_finup(desc, data, len, out);
/*
@ -78,7 +79,7 @@ static int sha1_ce_final(struct shash_desc *desc, u8 *out)
{
struct sha1_ce_state *sctx = shash_desc_ctx(desc);
if (!may_use_simd())
if (!crypto_simd_usable())
return crypto_sha1_finup(desc, NULL, 0, out);
sctx->finalize = 0;

7
arch/arm64/crypto/sha2-ce-glue.c
View File

@ -12,6 +12,7 @@
#include <asm/simd.h>
#include <asm/unaligned.h>
#include <crypto/internal/hash.h>
#include <crypto/internal/simd.h>
#include <crypto/sha.h>
#include <crypto/sha256_base.h>
#include <linux/cpufeature.h>
@ -42,7 +43,7 @@ static int sha256_ce_update(struct shash_desc *desc, const u8 *data,
{
struct sha256_ce_state *sctx = shash_desc_ctx(desc);
if (!may_use_simd())
if (!crypto_simd_usable())
return sha256_base_do_update(desc, data, len,
(sha256_block_fn *)sha256_block_data_order);
@ -61,7 +62,7 @@ static int sha256_ce_finup(struct shash_desc *desc, const u8 *data,
struct sha256_ce_state *sctx = shash_desc_ctx(desc);
bool finalize = !sctx->sst.count && !(len % SHA256_BLOCK_SIZE);
if (!may_use_simd()) {
if (!crypto_simd_usable()) {
if (len)
sha256_base_do_update(desc, data, len,
(sha256_block_fn *)sha256_block_data_order);
@ -90,7 +91,7 @@ static int sha256_ce_final(struct shash_desc *desc, u8 *out)
{
struct sha256_ce_state *sctx = shash_desc_ctx(desc);
if (!may_use_simd()) {
if (!crypto_simd_usable()) {
sha256_base_do_finalize(desc,
(sha256_block_fn *)sha256_block_data_order);
return sha256_base_finish(desc, out);

5
arch/arm64/crypto/sha256-glue.c
View File

@ -14,6 +14,7 @@
#include <asm/neon.h>
#include <asm/simd.h>
#include <crypto/internal/hash.h>
#include <crypto/internal/simd.h>
#include <crypto/sha.h>
#include <crypto/sha256_base.h>
#include <linux/cryptohash.h>
@ -89,7 +90,7 @@ static int sha256_update_neon(struct shash_desc *desc, const u8 *data,
{
struct sha256_state *sctx = shash_desc_ctx(desc);
if (!may_use_simd())
if (!crypto_simd_usable())
return sha256_base_do_update(desc, data, len,
(sha256_block_fn *)sha256_block_data_order);
@ -119,7 +120,7 @@ static int sha256_update_neon(struct shash_desc *desc, const u8 *data,
static int sha256_finup_neon(struct shash_desc *desc, const u8 *data,
unsigned int len, u8 *out)
{
if (!may_use_simd()) {
if (!crypto_simd_usable()) {
if (len)
sha256_base_do_update(desc, data, len,
(sha256_block_fn *)sha256_block_data_order);

5
arch/arm64/crypto/sha3-ce-glue.c
View File

@ -14,6 +14,7 @@
#include <asm/simd.h>
#include <asm/unaligned.h>
#include <crypto/internal/hash.h>
#include <crypto/internal/simd.h>
#include <crypto/sha3.h>
#include <linux/cpufeature.h>
#include <linux/crypto.h>
@ -32,7 +33,7 @@ static int sha3_update(struct shash_desc *desc, const u8 *data,
struct sha3_state *sctx = shash_desc_ctx(desc);
unsigned int digest_size = crypto_shash_digestsize(desc->tfm);
if (!may_use_simd())
if (!crypto_simd_usable())
return crypto_sha3_update(desc, data, len);
if ((sctx->partial + len) >= sctx->rsiz) {
@ -76,7 +77,7 @@ static int sha3_final(struct shash_desc *desc, u8 *out)
__le64 *digest = (__le64 *)out;
int i;
if (!may_use_simd())
if (!crypto_simd_usable())
return crypto_sha3_final(desc, out);
sctx->buf[sctx->partial++] = 0x06;

7
arch/arm64/crypto/sha512-ce-glue.c
View File

@ -13,6 +13,7 @@
#include <asm/simd.h>
#include <asm/unaligned.h>
#include <crypto/internal/hash.h>
#include <crypto/internal/simd.h>
#include <crypto/sha.h>
#include <crypto/sha512_base.h>
#include <linux/cpufeature.h>
@ -31,7 +32,7 @@ asmlinkage void sha512_block_data_order(u64 *digest, u8 const *src, int blocks);
static int sha512_ce_update(struct shash_desc *desc, const u8 *data,
unsigned int len)
{
if (!may_use_simd())
if (!crypto_simd_usable())
return sha512_base_do_update(desc, data, len,
(sha512_block_fn *)sha512_block_data_order);
@ -46,7 +47,7 @@ static int sha512_ce_update(struct shash_desc *desc, const u8 *data,
static int sha512_ce_finup(struct shash_desc *desc, const u8 *data,
unsigned int len, u8 *out)
{
if (!may_use_simd()) {
if (!crypto_simd_usable()) {
if (len)
sha512_base_do_update(desc, data, len,
(sha512_block_fn *)sha512_block_data_order);
@ -65,7 +66,7 @@ static int sha512_ce_finup(struct shash_desc *desc, const u8 *data,
static int sha512_ce_final(struct shash_desc *desc, u8 *out)
{
if (!may_use_simd()) {
if (!crypto_simd_usable()) {
sha512_base_do_finalize(desc,
(sha512_block_fn *)sha512_block_data_order);
return sha512_base_finish(desc, out);

7
arch/arm64/crypto/sm3-ce-glue.c
View File

@ -12,6 +12,7 @@
#include <asm/simd.h>
#include <asm/unaligned.h>
#include <crypto/internal/hash.h>
#include <crypto/internal/simd.h>
#include <crypto/sm3.h>
#include <crypto/sm3_base.h>
#include <linux/cpufeature.h>
@ -28,7 +29,7 @@ asmlinkage void sm3_ce_transform(struct sm3_state *sst, u8 const *src,
static int sm3_ce_update(struct shash_desc *desc, const u8 *data,
unsigned int len)
{
if (!may_use_simd())
if (!crypto_simd_usable())
return crypto_sm3_update(desc, data, len);
kernel_neon_begin();
@ -40,7 +41,7 @@ static int sm3_ce_update(struct shash_desc *desc, const u8 *data,
static int sm3_ce_final(struct shash_desc *desc, u8 *out)
{
if (!may_use_simd())
if (!crypto_simd_usable())
return crypto_sm3_finup(desc, NULL, 0, out);
kernel_neon_begin();
@ -53,7 +54,7 @@ static int sm3_ce_final(struct shash_desc *desc, u8 *out)
static int sm3_ce_finup(struct shash_desc *desc, const u8 *data,
unsigned int len, u8 *out)
{
if (!may_use_simd())
if (!crypto_simd_usable())
return crypto_sm3_finup(desc, data, len, out);
kernel_neon_begin();

5
arch/arm64/crypto/sm4-ce-glue.c
View File

@ -3,6 +3,7 @@
#include <asm/neon.h>
#include <asm/simd.h>
#include <crypto/sm4.h>
#include <crypto/internal/simd.h>
#include <linux/module.h>
#include <linux/cpufeature.h>
#include <linux/crypto.h>
@ -20,7 +21,7 @@ static void sm4_ce_encrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in)
{
const struct crypto_sm4_ctx *ctx = crypto_tfm_ctx(tfm);
if (!may_use_simd()) {
if (!crypto_simd_usable()) {
crypto_sm4_encrypt(tfm, out, in);
} else {
kernel_neon_begin();
@ -33,7 +34,7 @@ static void sm4_ce_decrypt(struct crypto_tfm *tfm, u8 *out, const u8 *in)
{
const struct crypto_sm4_ctx *ctx = crypto_tfm_ctx(tfm);
if (!may_use_simd()) {
if (!crypto_simd_usable()) {
crypto_sm4_decrypt(tfm, out, in);
} else {
kernel_neon_begin();