^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 1) // SPDX-License-Identifier: GPL-2.0
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 2) /*
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 3) * sun8i-ce-hash.c - hardware cryptographic offloader for
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 4) * Allwinner H3/A64/H5/H2+/H6/R40 SoC
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 5) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 6) * Copyright (C) 2015-2020 Corentin Labbe <clabbe@baylibre.com>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 7) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 8) * This file add support for MD5 and SHA1/SHA224/SHA256/SHA384/SHA512.
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 9) *
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 10) * You could find the datasheet in Documentation/arm/sunxi.rst
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 11) */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 12) #include <linux/bottom_half.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 13) #include <linux/dma-mapping.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 14) #include <linux/pm_runtime.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 15) #include <linux/scatterlist.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 16) #include <crypto/internal/hash.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 17) #include <crypto/sha.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 18) #include <crypto/md5.h>
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 19) #include "sun8i-ce.h"
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 20)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 21) int sun8i_ce_hash_crainit(struct crypto_tfm *tfm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 22) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 23) struct sun8i_ce_hash_tfm_ctx *op = crypto_tfm_ctx(tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 24) struct ahash_alg *alg = __crypto_ahash_alg(tfm->__crt_alg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 25) struct sun8i_ce_alg_template *algt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 26) int err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 27)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 28) memset(op, 0, sizeof(struct sun8i_ce_hash_tfm_ctx));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 29)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 30) algt = container_of(alg, struct sun8i_ce_alg_template, alg.hash);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 31) op->ce = algt->ce;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 32)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 33) op->enginectx.op.do_one_request = sun8i_ce_hash_run;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 34) op->enginectx.op.prepare_request = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 35) op->enginectx.op.unprepare_request = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 36)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 37) /* FALLBACK */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 38) op->fallback_tfm = crypto_alloc_ahash(crypto_tfm_alg_name(tfm), 0,
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 39) CRYPTO_ALG_NEED_FALLBACK);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 40) if (IS_ERR(op->fallback_tfm)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 41) dev_err(algt->ce->dev, "Fallback driver could no be loaded\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 42) return PTR_ERR(op->fallback_tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 43) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 44)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 45) if (algt->alg.hash.halg.statesize < crypto_ahash_statesize(op->fallback_tfm))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 46) algt->alg.hash.halg.statesize = crypto_ahash_statesize(op->fallback_tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 47)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 48) crypto_ahash_set_reqsize(__crypto_ahash_cast(tfm),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 49) sizeof(struct sun8i_ce_hash_reqctx) +
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 50) crypto_ahash_reqsize(op->fallback_tfm));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 51)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 52) dev_info(op->ce->dev, "Fallback for %s is %s\n",
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 53) crypto_tfm_alg_driver_name(tfm),
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 54) crypto_tfm_alg_driver_name(&op->fallback_tfm->base));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 55) err = pm_runtime_get_sync(op->ce->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 56) if (err < 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 57) goto error_pm;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 58) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 59) error_pm:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 60) pm_runtime_put_noidle(op->ce->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 61) crypto_free_ahash(op->fallback_tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 62) return err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 63) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 64)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 65) void sun8i_ce_hash_craexit(struct crypto_tfm *tfm)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 66) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 67) struct sun8i_ce_hash_tfm_ctx *tfmctx = crypto_tfm_ctx(tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 68)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 69) crypto_free_ahash(tfmctx->fallback_tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 70) pm_runtime_put_sync_suspend(tfmctx->ce->dev);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 71) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 72)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 73) int sun8i_ce_hash_init(struct ahash_request *areq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 74) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 75) struct sun8i_ce_hash_reqctx *rctx = ahash_request_ctx(areq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 76) struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 77) struct sun8i_ce_hash_tfm_ctx *tfmctx = crypto_ahash_ctx(tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 78)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 79) memset(rctx, 0, sizeof(struct sun8i_ce_hash_reqctx));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 80)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 81) ahash_request_set_tfm(&rctx->fallback_req, tfmctx->fallback_tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 82) rctx->fallback_req.base.flags = areq->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 83)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 84) return crypto_ahash_init(&rctx->fallback_req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 85) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 86)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 87) int sun8i_ce_hash_export(struct ahash_request *areq, void *out)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 88) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 89) struct sun8i_ce_hash_reqctx *rctx = ahash_request_ctx(areq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 90) struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 91) struct sun8i_ce_hash_tfm_ctx *tfmctx = crypto_ahash_ctx(tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 92)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 93) ahash_request_set_tfm(&rctx->fallback_req, tfmctx->fallback_tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 94) rctx->fallback_req.base.flags = areq->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 95)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 96) return crypto_ahash_export(&rctx->fallback_req, out);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 97) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 98)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 99) int sun8i_ce_hash_import(struct ahash_request *areq, const void *in)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 100) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 101) struct sun8i_ce_hash_reqctx *rctx = ahash_request_ctx(areq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 102) struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 103) struct sun8i_ce_hash_tfm_ctx *tfmctx = crypto_ahash_ctx(tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 104)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 105) ahash_request_set_tfm(&rctx->fallback_req, tfmctx->fallback_tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 106) rctx->fallback_req.base.flags = areq->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 107)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 108) return crypto_ahash_import(&rctx->fallback_req, in);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 109) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 110)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 111) int sun8i_ce_hash_final(struct ahash_request *areq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 112) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 113) struct sun8i_ce_hash_reqctx *rctx = ahash_request_ctx(areq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 114) struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 115) struct sun8i_ce_hash_tfm_ctx *tfmctx = crypto_ahash_ctx(tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 116) #ifdef CONFIG_CRYPTO_DEV_SUN8I_CE_DEBUG
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 117) struct ahash_alg *alg = __crypto_ahash_alg(tfm->base.__crt_alg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 118) struct sun8i_ce_alg_template *algt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 119) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 120)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 121) ahash_request_set_tfm(&rctx->fallback_req, tfmctx->fallback_tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 122) rctx->fallback_req.base.flags = areq->base.flags &
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 123) CRYPTO_TFM_REQ_MAY_SLEEP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 124) rctx->fallback_req.result = areq->result;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 125)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 126) #ifdef CONFIG_CRYPTO_DEV_SUN8I_CE_DEBUG
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 127) algt = container_of(alg, struct sun8i_ce_alg_template, alg.hash);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 128) algt->stat_fb++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 129) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 130)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 131) return crypto_ahash_final(&rctx->fallback_req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 132) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 133)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 134) int sun8i_ce_hash_update(struct ahash_request *areq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 135) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 136) struct sun8i_ce_hash_reqctx *rctx = ahash_request_ctx(areq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 137) struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 138) struct sun8i_ce_hash_tfm_ctx *tfmctx = crypto_ahash_ctx(tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 139)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 140) ahash_request_set_tfm(&rctx->fallback_req, tfmctx->fallback_tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 141) rctx->fallback_req.base.flags = areq->base.flags &
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 142) CRYPTO_TFM_REQ_MAY_SLEEP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 143) rctx->fallback_req.nbytes = areq->nbytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 144) rctx->fallback_req.src = areq->src;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 145)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 146) return crypto_ahash_update(&rctx->fallback_req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 147) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 148)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 149) int sun8i_ce_hash_finup(struct ahash_request *areq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 150) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 151) struct sun8i_ce_hash_reqctx *rctx = ahash_request_ctx(areq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 152) struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 153) struct sun8i_ce_hash_tfm_ctx *tfmctx = crypto_ahash_ctx(tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 154) #ifdef CONFIG_CRYPTO_DEV_SUN8I_CE_DEBUG
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 155) struct ahash_alg *alg = __crypto_ahash_alg(tfm->base.__crt_alg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 156) struct sun8i_ce_alg_template *algt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 157) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 158)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 159) ahash_request_set_tfm(&rctx->fallback_req, tfmctx->fallback_tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 160) rctx->fallback_req.base.flags = areq->base.flags &
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 161) CRYPTO_TFM_REQ_MAY_SLEEP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 162)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 163) rctx->fallback_req.nbytes = areq->nbytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 164) rctx->fallback_req.src = areq->src;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 165) rctx->fallback_req.result = areq->result;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 166) #ifdef CONFIG_CRYPTO_DEV_SUN8I_CE_DEBUG
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 167) algt = container_of(alg, struct sun8i_ce_alg_template, alg.hash);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 168) algt->stat_fb++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 169) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 170)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 171) return crypto_ahash_finup(&rctx->fallback_req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 172) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 173)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 174) static int sun8i_ce_hash_digest_fb(struct ahash_request *areq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 175) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 176) struct sun8i_ce_hash_reqctx *rctx = ahash_request_ctx(areq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 177) struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 178) struct sun8i_ce_hash_tfm_ctx *tfmctx = crypto_ahash_ctx(tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 179) #ifdef CONFIG_CRYPTO_DEV_SUN8I_CE_DEBUG
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 180) struct ahash_alg *alg = __crypto_ahash_alg(tfm->base.__crt_alg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 181) struct sun8i_ce_alg_template *algt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 182) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 183)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 184) ahash_request_set_tfm(&rctx->fallback_req, tfmctx->fallback_tfm);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 185) rctx->fallback_req.base.flags = areq->base.flags &
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 186) CRYPTO_TFM_REQ_MAY_SLEEP;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 187)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 188) rctx->fallback_req.nbytes = areq->nbytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 189) rctx->fallback_req.src = areq->src;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 190) rctx->fallback_req.result = areq->result;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 191) #ifdef CONFIG_CRYPTO_DEV_SUN8I_CE_DEBUG
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 192) algt = container_of(alg, struct sun8i_ce_alg_template, alg.hash);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 193) algt->stat_fb++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 194) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 195)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 196) return crypto_ahash_digest(&rctx->fallback_req);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 197) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 198)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 199) static bool sun8i_ce_hash_need_fallback(struct ahash_request *areq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 200) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 201) struct scatterlist *sg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 202)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 203) if (areq->nbytes == 0)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 204) return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 205) /* we need to reserve one SG for padding one */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 206) if (sg_nents(areq->src) > MAX_SG - 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 207) return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 208) sg = areq->src;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 209) while (sg) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 210) if (sg->length % 4 || !IS_ALIGNED(sg->offset, sizeof(u32)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 211) return true;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 212) sg = sg_next(sg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 213) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 214) return false;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 215) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 216)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 217) int sun8i_ce_hash_digest(struct ahash_request *areq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 218) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 219) struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 220) struct ahash_alg *alg = __crypto_ahash_alg(tfm->base.__crt_alg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 221) struct sun8i_ce_hash_reqctx *rctx = ahash_request_ctx(areq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 222) struct sun8i_ce_alg_template *algt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 223) struct sun8i_ce_dev *ce;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 224) struct crypto_engine *engine;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 225) struct scatterlist *sg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 226) int nr_sgs, e, i;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 227)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 228) if (sun8i_ce_hash_need_fallback(areq))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 229) return sun8i_ce_hash_digest_fb(areq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 230)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 231) nr_sgs = sg_nents(areq->src);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 232) if (nr_sgs > MAX_SG - 1)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 233) return sun8i_ce_hash_digest_fb(areq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 234)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 235) for_each_sg(areq->src, sg, nr_sgs, i) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 236) if (sg->length % 4 || !IS_ALIGNED(sg->offset, sizeof(u32)))
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 237) return sun8i_ce_hash_digest_fb(areq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 238) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 239)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 240) algt = container_of(alg, struct sun8i_ce_alg_template, alg.hash);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 241) ce = algt->ce;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 242)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 243) e = sun8i_ce_get_engine_number(ce);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 244) rctx->flow = e;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 245) engine = ce->chanlist[e].engine;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 246)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 247) return crypto_transfer_hash_request_to_engine(engine, areq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 248) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 249)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 250) int sun8i_ce_hash_run(struct crypto_engine *engine, void *breq)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 251) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 252) struct ahash_request *areq = container_of(breq, struct ahash_request, base);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 253) struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 254) struct ahash_alg *alg = __crypto_ahash_alg(tfm->base.__crt_alg);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 255) struct sun8i_ce_hash_reqctx *rctx = ahash_request_ctx(areq);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 256) struct sun8i_ce_alg_template *algt;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 257) struct sun8i_ce_dev *ce;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 258) struct sun8i_ce_flow *chan;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 259) struct ce_task *cet;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 260) struct scatterlist *sg;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 261) int nr_sgs, flow, err;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 262) unsigned int len;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 263) u32 common;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 264) u64 byte_count;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 265) __le32 *bf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 266) void *buf = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 267) int j, i, todo;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 268) int nbw = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 269) u64 fill, min_fill;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 270) __be64 *bebits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 271) __le64 *lebits;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 272) void *result = NULL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 273) u64 bs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 274) int digestsize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 275) dma_addr_t addr_res, addr_pad;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 276)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 277) algt = container_of(alg, struct sun8i_ce_alg_template, alg.hash);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 278) ce = algt->ce;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 279)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 280) bs = algt->alg.hash.halg.base.cra_blocksize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 281) digestsize = algt->alg.hash.halg.digestsize;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 282) if (digestsize == SHA224_DIGEST_SIZE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 283) digestsize = SHA256_DIGEST_SIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 284) if (digestsize == SHA384_DIGEST_SIZE)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 285) digestsize = SHA512_DIGEST_SIZE;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 286)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 287) /* the padding could be up to two block. */
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 288) buf = kzalloc(bs * 2, GFP_KERNEL | GFP_DMA);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 289) if (!buf) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 290) err = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 291) goto theend;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 292) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 293) bf = (__le32 *)buf;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 294)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 295) result = kzalloc(digestsize, GFP_KERNEL | GFP_DMA);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 296) if (!result) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 297) err = -ENOMEM;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 298) goto theend;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 299) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 300)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 301) flow = rctx->flow;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 302) chan = &ce->chanlist[flow];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 303)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 304) #ifdef CONFIG_CRYPTO_DEV_SUN8I_CE_DEBUG
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 305) algt->stat_req++;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 306) #endif
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 307) dev_dbg(ce->dev, "%s %s len=%d\n", __func__, crypto_tfm_alg_name(areq->base.tfm), areq->nbytes);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 308)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 309) cet = chan->tl;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 310) memset(cet, 0, sizeof(struct ce_task));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 311)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 312) cet->t_id = cpu_to_le32(flow);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 313) common = ce->variant->alg_hash[algt->ce_algo_id];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 314) common |= CE_COMM_INT;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 315) cet->t_common_ctl = cpu_to_le32(common);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 316)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 317) cet->t_sym_ctl = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 318) cet->t_asym_ctl = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 319)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 320) nr_sgs = dma_map_sg(ce->dev, areq->src, sg_nents(areq->src), DMA_TO_DEVICE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 321) if (nr_sgs <= 0 || nr_sgs > MAX_SG) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 322) dev_err(ce->dev, "Invalid sg number %d\n", nr_sgs);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 323) err = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 324) goto theend;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 325) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 326)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 327) len = areq->nbytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 328) for_each_sg(areq->src, sg, nr_sgs, i) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 329) cet->t_src[i].addr = cpu_to_le32(sg_dma_address(sg));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 330) todo = min(len, sg_dma_len(sg));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 331) cet->t_src[i].len = cpu_to_le32(todo / 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 332) len -= todo;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 333) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 334) if (len > 0) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 335) dev_err(ce->dev, "remaining len %d\n", len);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 336) err = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 337) goto theend;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 338) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 339) addr_res = dma_map_single(ce->dev, result, digestsize, DMA_FROM_DEVICE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 340) cet->t_dst[0].addr = cpu_to_le32(addr_res);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 341) cet->t_dst[0].len = cpu_to_le32(digestsize / 4);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 342) if (dma_mapping_error(ce->dev, addr_res)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 343) dev_err(ce->dev, "DMA map dest\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 344) err = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 345) goto theend;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 346) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 347)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 348) byte_count = areq->nbytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 349) j = 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 350) bf[j++] = cpu_to_le32(0x80);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 351)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 352) if (bs == 64) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 353) fill = 64 - (byte_count % 64);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 354) min_fill = 2 * sizeof(u32) + (nbw ? 0 : sizeof(u32));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 355) } else {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 356) fill = 128 - (byte_count % 128);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 357) min_fill = 4 * sizeof(u32) + (nbw ? 0 : sizeof(u32));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 358) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 359)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 360) if (fill < min_fill)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 361) fill += bs;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 362)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 363) j += (fill - min_fill) / sizeof(u32);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 364)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 365) switch (algt->ce_algo_id) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 366) case CE_ID_HASH_MD5:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 367) lebits = (__le64 *)&bf[j];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 368) *lebits = cpu_to_le64(byte_count << 3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 369) j += 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 370) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 371) case CE_ID_HASH_SHA1:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 372) case CE_ID_HASH_SHA224:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 373) case CE_ID_HASH_SHA256:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 374) bebits = (__be64 *)&bf[j];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 375) *bebits = cpu_to_be64(byte_count << 3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 376) j += 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 377) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 378) case CE_ID_HASH_SHA384:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 379) case CE_ID_HASH_SHA512:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 380) bebits = (__be64 *)&bf[j];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 381) *bebits = cpu_to_be64(byte_count >> 61);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 382) j += 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 383) bebits = (__be64 *)&bf[j];
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 384) *bebits = cpu_to_be64(byte_count << 3);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 385) j += 2;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 386) break;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 387) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 388)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 389) addr_pad = dma_map_single(ce->dev, buf, j * 4, DMA_TO_DEVICE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 390) cet->t_src[i].addr = cpu_to_le32(addr_pad);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 391) cet->t_src[i].len = cpu_to_le32(j);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 392) if (dma_mapping_error(ce->dev, addr_pad)) {
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 393) dev_err(ce->dev, "DMA error on padding SG\n");
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 394) err = -EINVAL;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 395) goto theend;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 396) }
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 397)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 398) if (ce->variant->hash_t_dlen_in_bits)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 399) cet->t_dlen = cpu_to_le32((areq->nbytes + j * 4) * 8);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 400) else
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 401) cet->t_dlen = cpu_to_le32(areq->nbytes / 4 + j);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 402)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 403) chan->timeout = areq->nbytes;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 404)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 405) err = sun8i_ce_run_task(ce, flow, crypto_tfm_alg_name(areq->base.tfm));
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 406)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 407) dma_unmap_single(ce->dev, addr_pad, j * 4, DMA_TO_DEVICE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 408) dma_unmap_sg(ce->dev, areq->src, nr_sgs, DMA_TO_DEVICE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 409) dma_unmap_single(ce->dev, addr_res, digestsize, DMA_FROM_DEVICE);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 410)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 411)
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 412) memcpy(areq->result, result, algt->alg.hash.halg.digestsize);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 413) theend:
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 414) kfree(buf);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 415) kfree(result);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 416) local_bh_disable();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 417) crypto_finalize_hash_request(engine, breq, err);
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 418) local_bh_enable();
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 419) return 0;
^8f3ce5b39 (kx 2023-10-28 12:00:06 +0300 420) }