--- /dev/null
+/*
+ * Copyright (c) 2010-2014, The Linux Foundation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 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.
+ */
+
+#include <linux/device.h>
+#include <linux/interrupt.h>
+#include <linux/types.h>
+#include <crypto/aes.h>
+#include <crypto/algapi.h>
+#include <crypto/des.h>
+
+#include "cipher.h"
+
+static LIST_HEAD(ablkcipher_algs);
+
+static void qce_ablkcipher_done(void *data)
+{
+ struct crypto_async_request *async_req = data;
+ struct ablkcipher_request *req = ablkcipher_request_cast(async_req);
+ struct qce_cipher_reqctx *rctx = ablkcipher_request_ctx(req);
+ struct qce_alg_template *tmpl = to_cipher_tmpl(async_req->tfm);
+ struct qce_device *qce = tmpl->qce;
+ enum dma_data_direction dir_src, dir_dst;
+ u32 status;
+ int error;
+ bool diff_dst;
+
+ diff_dst = (req->src != req->dst) ? true : false;
+ dir_src = diff_dst ? DMA_TO_DEVICE : DMA_BIDIRECTIONAL;
+ dir_dst = diff_dst ? DMA_FROM_DEVICE : DMA_BIDIRECTIONAL;
+
+ error = qce_dma_terminate_all(&qce->dma);
+ if (error)
+ dev_dbg(qce->dev, "ablkcipher dma termination error (%d)\n",
+ error);
+
+ if (diff_dst)
+ qce_unmapsg(qce->dev, rctx->src_sg, rctx->src_nents, dir_src,
+ rctx->dst_chained);
+ qce_unmapsg(qce->dev, rctx->dst_sg, rctx->dst_nents, dir_dst,
+ rctx->dst_chained);
+
+ sg_free_table(&rctx->dst_tbl);
+
+ error = qce_check_status(qce, &status);
+ if (error < 0)
+ dev_dbg(qce->dev, "ablkcipher operation error (%x)\n", status);
+
+ qce->async_req_done(tmpl->qce, error);
+}
+
+static int
+qce_ablkcipher_async_req_handle(struct crypto_async_request *async_req)
+{
+ struct ablkcipher_request *req = ablkcipher_request_cast(async_req);
+ struct qce_cipher_reqctx *rctx = ablkcipher_request_ctx(req);
+ struct crypto_ablkcipher *ablkcipher = crypto_ablkcipher_reqtfm(req);
+ struct qce_alg_template *tmpl = to_cipher_tmpl(async_req->tfm);
+ struct qce_device *qce = tmpl->qce;
+ enum dma_data_direction dir_src, dir_dst;
+ struct scatterlist *sg;
+ bool diff_dst;
+ gfp_t gfp;
+ int ret;
+
+ rctx->iv = req->info;
+ rctx->ivsize = crypto_ablkcipher_ivsize(ablkcipher);
+ rctx->cryptlen = req->nbytes;
+
+ diff_dst = (req->src != req->dst) ? true : false;
+ dir_src = diff_dst ? DMA_TO_DEVICE : DMA_BIDIRECTIONAL;
+ dir_dst = diff_dst ? DMA_FROM_DEVICE : DMA_BIDIRECTIONAL;
+
+ rctx->src_nents = qce_countsg(req->src, req->nbytes,
+ &rctx->src_chained);
+ if (diff_dst) {
+ rctx->dst_nents = qce_countsg(req->dst, req->nbytes,
+ &rctx->dst_chained);
+ } else {
+ rctx->dst_nents = rctx->src_nents;
+ rctx->dst_chained = rctx->src_chained;
+ }
+
+ rctx->dst_nents += 1;
+
+ gfp = (req->base.flags & CRYPTO_TFM_REQ_MAY_SLEEP) ?
+ GFP_KERNEL : GFP_ATOMIC;
+
+ ret = sg_alloc_table(&rctx->dst_tbl, rctx->dst_nents, gfp);
+ if (ret)
+ return ret;
+
+ sg_init_one(&rctx->result_sg, qce->dma.result_buf, QCE_RESULT_BUF_SZ);
+
+ sg = qce_sgtable_add(&rctx->dst_tbl, req->dst);
+ if (IS_ERR(sg)) {
+ ret = PTR_ERR(sg);
+ goto error_free;
+ }
+
+ sg = qce_sgtable_add(&rctx->dst_tbl, &rctx->result_sg);
+ if (IS_ERR(sg)) {
+ ret = PTR_ERR(sg);
+ goto error_free;
+ }
+
+ sg_mark_end(sg);
+ rctx->dst_sg = rctx->dst_tbl.sgl;
+
+ ret = qce_mapsg(qce->dev, rctx->dst_sg, rctx->dst_nents, dir_dst,
+ rctx->dst_chained);
+ if (ret < 0)
+ goto error_free;
+
+ if (diff_dst) {
+ ret = qce_mapsg(qce->dev, req->src, rctx->src_nents, dir_src,
+ rctx->src_chained);
+ if (ret < 0)
+ goto error_unmap_dst;
+ rctx->src_sg = req->src;
+ } else {
+ rctx->src_sg = rctx->dst_sg;
+ }
+
+ ret = qce_dma_prep_sgs(&qce->dma, rctx->src_sg, rctx->src_nents,
+ rctx->dst_sg, rctx->dst_nents,
+ qce_ablkcipher_done, async_req);
+ if (ret)
+ goto error_unmap_src;
+
+ qce_dma_issue_pending(&qce->dma);
+
+ ret = qce_start(async_req, tmpl->crypto_alg_type, req->nbytes, 0);
+ if (ret)
+ goto error_terminate;
+
+ return 0;
+
+error_terminate:
+ qce_dma_terminate_all(&qce->dma);
+error_unmap_src:
+ if (diff_dst)
+ qce_unmapsg(qce->dev, req->src, rctx->src_nents, dir_src,
+ rctx->src_chained);
+error_unmap_dst:
+ qce_unmapsg(qce->dev, rctx->dst_sg, rctx->dst_nents, dir_dst,
+ rctx->dst_chained);
+error_free:
+ sg_free_table(&rctx->dst_tbl);
+ return ret;
+}
+
+static int qce_ablkcipher_setkey(struct crypto_ablkcipher *ablk, const u8 *key,
+ unsigned int keylen)
+{
+ struct crypto_tfm *tfm = crypto_ablkcipher_tfm(ablk);
+ struct qce_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+ unsigned long flags = to_cipher_tmpl(tfm)->alg_flags;
+ int ret;
+
+ if (!key || !keylen)
+ return -EINVAL;
+
+ if (IS_AES(flags)) {
+ switch (keylen) {
+ case AES_KEYSIZE_128:
+ case AES_KEYSIZE_256:
+ break;
+ default:
+ goto fallback;
+ }
+ } else if (IS_DES(flags)) {
+ u32 tmp[DES_EXPKEY_WORDS];
+
+ ret = des_ekey(tmp, key);
+ if (!ret && crypto_ablkcipher_get_flags(ablk) &
+ CRYPTO_TFM_REQ_WEAK_KEY)
+ goto weakkey;
+ }
+
+ ctx->enc_keylen = keylen;
+ memcpy(ctx->enc_key, key, keylen);
+ return 0;
+fallback:
+ ret = crypto_ablkcipher_setkey(ctx->fallback, key, keylen);
+ if (!ret)
+ ctx->enc_keylen = keylen;
+ return ret;
+weakkey:
+ crypto_ablkcipher_set_flags(ablk, CRYPTO_TFM_RES_WEAK_KEY);
+ return -EINVAL;
+}
+
+static int qce_ablkcipher_crypt(struct ablkcipher_request *req, int encrypt)
+{
+ struct crypto_tfm *tfm =
+ crypto_ablkcipher_tfm(crypto_ablkcipher_reqtfm(req));
+ struct qce_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+ struct qce_cipher_reqctx *rctx = ablkcipher_request_ctx(req);
+ struct qce_alg_template *tmpl = to_cipher_tmpl(tfm);
+ int ret;
+
+ rctx->flags = tmpl->alg_flags;
+ rctx->flags |= encrypt ? QCE_ENCRYPT : QCE_DECRYPT;
+
+ if (IS_AES(rctx->flags) && ctx->enc_keylen != AES_KEYSIZE_128 &&
+ ctx->enc_keylen != AES_KEYSIZE_256) {
+ ablkcipher_request_set_tfm(req, ctx->fallback);
+ ret = encrypt ? crypto_ablkcipher_encrypt(req) :
+ crypto_ablkcipher_decrypt(req);
+ ablkcipher_request_set_tfm(req, __crypto_ablkcipher_cast(tfm));
+ return ret;
+ }
+
+ return tmpl->qce->async_req_enqueue(tmpl->qce, &req->base);
+}
+
+static int qce_ablkcipher_encrypt(struct ablkcipher_request *req)
+{
+ return qce_ablkcipher_crypt(req, 1);
+}
+
+static int qce_ablkcipher_decrypt(struct ablkcipher_request *req)
+{
+ return qce_ablkcipher_crypt(req, 0);
+}
+
+static int qce_ablkcipher_init(struct crypto_tfm *tfm)
+{
+ struct qce_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ memset(ctx, 0, sizeof(*ctx));
+ tfm->crt_ablkcipher.reqsize = sizeof(struct qce_cipher_reqctx);
+
+ ctx->fallback = crypto_alloc_ablkcipher(crypto_tfm_alg_name(tfm),
+ CRYPTO_ALG_TYPE_ABLKCIPHER,
+ CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_NEED_FALLBACK);
+ if (IS_ERR(ctx->fallback))
+ return PTR_ERR(ctx->fallback);
+
+ return 0;
+}
+
+static void qce_ablkcipher_exit(struct crypto_tfm *tfm)
+{
+ struct qce_cipher_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ crypto_free_ablkcipher(ctx->fallback);
+}
+
+struct qce_ablkcipher_def {
+ unsigned long flags;
+ const char *name;
+ const char *drv_name;
+ unsigned int blocksize;
+ unsigned int ivsize;
+ unsigned int min_keysize;
+ unsigned int max_keysize;
+};
+
+static const struct qce_ablkcipher_def ablkcipher_def[] = {
+ {
+ .flags = QCE_ALG_AES | QCE_MODE_ECB,
+ .name = "ecb(aes)",
+ .drv_name = "ecb-aes-qce",
+ .blocksize = AES_BLOCK_SIZE,
+ .ivsize = AES_BLOCK_SIZE,
+ .min_keysize = AES_MIN_KEY_SIZE,
+ .max_keysize = AES_MAX_KEY_SIZE,
+ },
+ {
+ .flags = QCE_ALG_AES | QCE_MODE_CBC,
+ .name = "cbc(aes)",
+ .drv_name = "cbc-aes-qce",
+ .blocksize = AES_BLOCK_SIZE,
+ .ivsize = AES_BLOCK_SIZE,
+ .min_keysize = AES_MIN_KEY_SIZE,
+ .max_keysize = AES_MAX_KEY_SIZE,
+ },
+ {
+ .flags = QCE_ALG_AES | QCE_MODE_CTR,
+ .name = "ctr(aes)",
+ .drv_name = "ctr-aes-qce",
+ .blocksize = AES_BLOCK_SIZE,
+ .ivsize = AES_BLOCK_SIZE,
+ .min_keysize = AES_MIN_KEY_SIZE,
+ .max_keysize = AES_MAX_KEY_SIZE,
+ },
+ {
+ .flags = QCE_ALG_AES | QCE_MODE_XTS,
+ .name = "xts(aes)",
+ .drv_name = "xts-aes-qce",
+ .blocksize = AES_BLOCK_SIZE,
+ .ivsize = AES_BLOCK_SIZE,
+ .min_keysize = AES_MIN_KEY_SIZE,
+ .max_keysize = AES_MAX_KEY_SIZE,
+ },
+ {
+ .flags = QCE_ALG_DES | QCE_MODE_ECB,
+ .name = "ecb(des)",
+ .drv_name = "ecb-des-qce",
+ .blocksize = DES_BLOCK_SIZE,
+ .ivsize = 0,
+ .min_keysize = DES_KEY_SIZE,
+ .max_keysize = DES_KEY_SIZE,
+ },
+ {
+ .flags = QCE_ALG_DES | QCE_MODE_CBC,
+ .name = "cbc(des)",
+ .drv_name = "cbc-des-qce",
+ .blocksize = DES_BLOCK_SIZE,
+ .ivsize = DES_BLOCK_SIZE,
+ .min_keysize = DES_KEY_SIZE,
+ .max_keysize = DES_KEY_SIZE,
+ },
+ {
+ .flags = QCE_ALG_3DES | QCE_MODE_ECB,
+ .name = "ecb(des3_ede)",
+ .drv_name = "ecb-3des-qce",
+ .blocksize = DES3_EDE_BLOCK_SIZE,
+ .ivsize = 0,
+ .min_keysize = DES3_EDE_KEY_SIZE,
+ .max_keysize = DES3_EDE_KEY_SIZE,
+ },
+ {
+ .flags = QCE_ALG_3DES | QCE_MODE_CBC,
+ .name = "cbc(des3_ede)",
+ .drv_name = "cbc-3des-qce",
+ .blocksize = DES3_EDE_BLOCK_SIZE,
+ .ivsize = DES3_EDE_BLOCK_SIZE,
+ .min_keysize = DES3_EDE_KEY_SIZE,
+ .max_keysize = DES3_EDE_KEY_SIZE,
+ },
+};
+
+static int qce_ablkcipher_register_one(const struct qce_ablkcipher_def *def,
+ struct qce_device *qce)
+{
+ struct qce_alg_template *tmpl;
+ struct crypto_alg *alg;
+ int ret;
+
+ tmpl = kzalloc(sizeof(*tmpl), GFP_KERNEL);
+ if (!tmpl)
+ return -ENOMEM;
+
+ alg = &tmpl->alg.crypto;
+
+ snprintf(alg->cra_name, CRYPTO_MAX_ALG_NAME, "%s", def->name);
+ snprintf(alg->cra_driver_name, CRYPTO_MAX_ALG_NAME, "%s",
+ def->drv_name);
+
+ alg->cra_blocksize = def->blocksize;
+ alg->cra_ablkcipher.ivsize = def->ivsize;
+ alg->cra_ablkcipher.min_keysize = def->min_keysize;
+ alg->cra_ablkcipher.max_keysize = def->max_keysize;
+ alg->cra_ablkcipher.setkey = qce_ablkcipher_setkey;
+ alg->cra_ablkcipher.encrypt = qce_ablkcipher_encrypt;
+ alg->cra_ablkcipher.decrypt = qce_ablkcipher_decrypt;
+
+ alg->cra_priority = 300;
+ alg->cra_flags = CRYPTO_ALG_TYPE_ABLKCIPHER | CRYPTO_ALG_ASYNC |
+ CRYPTO_ALG_NEED_FALLBACK;
+ alg->cra_ctxsize = sizeof(struct qce_cipher_ctx);
+ alg->cra_alignmask = 0;
+ alg->cra_type = &crypto_ablkcipher_type;
+ alg->cra_module = THIS_MODULE;
+ alg->cra_init = qce_ablkcipher_init;
+ alg->cra_exit = qce_ablkcipher_exit;
+ INIT_LIST_HEAD(&alg->cra_list);
+
+ INIT_LIST_HEAD(&tmpl->entry);
+ tmpl->crypto_alg_type = CRYPTO_ALG_TYPE_ABLKCIPHER;
+ tmpl->alg_flags = def->flags;
+ tmpl->qce = qce;
+
+ ret = crypto_register_alg(alg);
+ if (ret) {
+ kfree(tmpl);
+ dev_err(qce->dev, "%s registration failed\n", alg->cra_name);
+ return ret;
+ }
+
+ list_add_tail(&tmpl->entry, &ablkcipher_algs);
+ dev_dbg(qce->dev, "%s is registered\n", alg->cra_name);
+ return 0;
+}
+
+static void qce_ablkcipher_unregister(struct qce_device *qce)
+{
+ struct qce_alg_template *tmpl, *n;
+
+ list_for_each_entry_safe(tmpl, n, &ablkcipher_algs, entry) {
+ crypto_unregister_alg(&tmpl->alg.crypto);
+ list_del(&tmpl->entry);
+ kfree(tmpl);
+ }
+}
+
+static int qce_ablkcipher_register(struct qce_device *qce)
+{
+ int ret, i;
+
+ for (i = 0; i < ARRAY_SIZE(ablkcipher_def); i++) {
+ ret = qce_ablkcipher_register_one(&ablkcipher_def[i], qce);
+ if (ret)
+ goto err;
+ }
+
+ return 0;
+err:
+ qce_ablkcipher_unregister(qce);
+ return ret;
+}
+
+const struct qce_algo_ops ablkcipher_ops = {
+ .type = CRYPTO_ALG_TYPE_ABLKCIPHER,
+ .register_algs = qce_ablkcipher_register,
+ .unregister_algs = qce_ablkcipher_unregister,
+ .async_req_handle = qce_ablkcipher_async_req_handle,
+};
--- /dev/null
+/*
+ * Copyright (c) 2010-2014, The Linux Foundation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 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.
+ */
+
+#ifndef _CIPHER_H_
+#define _CIPHER_H_
+
+#include "common.h"
+#include "core.h"
+
+#define QCE_MAX_KEY_SIZE 64
+
+struct qce_cipher_ctx {
+ u8 enc_key[QCE_MAX_KEY_SIZE];
+ unsigned int enc_keylen;
+ struct crypto_ablkcipher *fallback;
+};
+
+/**
+ * struct qce_cipher_reqctx - holds private cipher objects per request
+ * @flags: operation flags
+ * @iv: pointer to the IV
+ * @ivsize: IV size
+ * @src_nents: source entries
+ * @dst_nents: destination entries
+ * @src_chained: is source chained
+ * @dst_chained: is destination chained
+ * @result_sg: scatterlist used for result buffer
+ * @dst_tbl: destination sg table
+ * @dst_sg: destination sg pointer table beginning
+ * @src_tbl: source sg table
+ * @src_sg: source sg pointer table beginning;
+ * @cryptlen: crypto length
+ */
+struct qce_cipher_reqctx {
+ unsigned long flags;
+ u8 *iv;
+ unsigned int ivsize;
+ int src_nents;
+ int dst_nents;
+ bool src_chained;
+ bool dst_chained;
+ struct scatterlist result_sg;
+ struct sg_table dst_tbl;
+ struct scatterlist *dst_sg;
+ struct sg_table src_tbl;
+ struct scatterlist *src_sg;
+ unsigned int cryptlen;
+};
+
+static inline struct qce_alg_template *to_cipher_tmpl(struct crypto_tfm *tfm)
+{
+ struct crypto_alg *alg = tfm->__crt_alg;
+ return container_of(alg, struct qce_alg_template, alg.crypto);
+}
+
+extern const struct qce_algo_ops ablkcipher_ops;
+
+#endif /* _CIPHER_H_ */
--- /dev/null
+/*
+ * Copyright (c) 2012-2014, The Linux Foundation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 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.
+ */
+
+#include <linux/err.h>
+#include <linux/interrupt.h>
+#include <linux/types.h>
+#include <crypto/scatterwalk.h>
+#include <crypto/sha.h>
+
+#include "cipher.h"
+#include "common.h"
+#include "core.h"
+#include "regs-v5.h"
+#include "sha.h"
+
+#define QCE_SECTOR_SIZE 512
+
+static inline u32 qce_read(struct qce_device *qce, u32 offset)
+{
+ return readl(qce->base + offset);
+}
+
+static inline void qce_write(struct qce_device *qce, u32 offset, u32 val)
+{
+ writel(val, qce->base + offset);
+}
+
+static inline void qce_write_array(struct qce_device *qce, u32 offset,
+ const u32 *val, unsigned int len)
+{
+ int i;
+
+ for (i = 0; i < len; i++)
+ qce_write(qce, offset + i * sizeof(u32), val[i]);
+}
+
+static inline void
+qce_clear_array(struct qce_device *qce, u32 offset, unsigned int len)
+{
+ int i;
+
+ for (i = 0; i < len; i++)
+ qce_write(qce, offset + i * sizeof(u32), 0);
+}
+
+static u32 qce_encr_cfg(unsigned long flags, u32 aes_key_size)
+{
+ u32 cfg = 0;
+
+ if (IS_AES(flags)) {
+ if (aes_key_size == AES_KEYSIZE_128)
+ cfg |= ENCR_KEY_SZ_AES128 << ENCR_KEY_SZ_SHIFT;
+ else if (aes_key_size == AES_KEYSIZE_256)
+ cfg |= ENCR_KEY_SZ_AES256 << ENCR_KEY_SZ_SHIFT;
+ }
+
+ if (IS_AES(flags))
+ cfg |= ENCR_ALG_AES << ENCR_ALG_SHIFT;
+ else if (IS_DES(flags) || IS_3DES(flags))
+ cfg |= ENCR_ALG_DES << ENCR_ALG_SHIFT;
+
+ if (IS_DES(flags))
+ cfg |= ENCR_KEY_SZ_DES << ENCR_KEY_SZ_SHIFT;
+
+ if (IS_3DES(flags))
+ cfg |= ENCR_KEY_SZ_3DES << ENCR_KEY_SZ_SHIFT;
+
+ switch (flags & QCE_MODE_MASK) {
+ case QCE_MODE_ECB:
+ cfg |= ENCR_MODE_ECB << ENCR_MODE_SHIFT;
+ break;
+ case QCE_MODE_CBC:
+ cfg |= ENCR_MODE_CBC << ENCR_MODE_SHIFT;
+ break;
+ case QCE_MODE_CTR:
+ cfg |= ENCR_MODE_CTR << ENCR_MODE_SHIFT;
+ break;
+ case QCE_MODE_XTS:
+ cfg |= ENCR_MODE_XTS << ENCR_MODE_SHIFT;
+ break;
+ case QCE_MODE_CCM:
+ cfg |= ENCR_MODE_CCM << ENCR_MODE_SHIFT;
+ cfg |= LAST_CCM_XFR << LAST_CCM_SHIFT;
+ break;
+ default:
+ return ~0;
+ }
+
+ return cfg;
+}
+
+static u32 qce_auth_cfg(unsigned long flags, u32 key_size)
+{
+ u32 cfg = 0;
+
+ if (IS_AES(flags) && (IS_CCM(flags) || IS_CMAC(flags)))
+ cfg |= AUTH_ALG_AES << AUTH_ALG_SHIFT;
+ else
+ cfg |= AUTH_ALG_SHA << AUTH_ALG_SHIFT;
+
+ if (IS_CCM(flags) || IS_CMAC(flags)) {
+ if (key_size == AES_KEYSIZE_128)
+ cfg |= AUTH_KEY_SZ_AES128 << AUTH_KEY_SIZE_SHIFT;
+ else if (key_size == AES_KEYSIZE_256)
+ cfg |= AUTH_KEY_SZ_AES256 << AUTH_KEY_SIZE_SHIFT;
+ }
+
+ if (IS_SHA1(flags) || IS_SHA1_HMAC(flags))
+ cfg |= AUTH_SIZE_SHA1 << AUTH_SIZE_SHIFT;
+ else if (IS_SHA256(flags) || IS_SHA256_HMAC(flags))
+ cfg |= AUTH_SIZE_SHA256 << AUTH_SIZE_SHIFT;
+ else if (IS_CMAC(flags))
+ cfg |= AUTH_SIZE_ENUM_16_BYTES << AUTH_SIZE_SHIFT;
+
+ if (IS_SHA1(flags) || IS_SHA256(flags))
+ cfg |= AUTH_MODE_HASH << AUTH_MODE_SHIFT;
+ else if (IS_SHA1_HMAC(flags) || IS_SHA256_HMAC(flags) ||
+ IS_CBC(flags) || IS_CTR(flags))
+ cfg |= AUTH_MODE_HMAC << AUTH_MODE_SHIFT;
+ else if (IS_AES(flags) && IS_CCM(flags))
+ cfg |= AUTH_MODE_CCM << AUTH_MODE_SHIFT;
+ else if (IS_AES(flags) && IS_CMAC(flags))
+ cfg |= AUTH_MODE_CMAC << AUTH_MODE_SHIFT;
+
+ if (IS_SHA(flags) || IS_SHA_HMAC(flags))
+ cfg |= AUTH_POS_BEFORE << AUTH_POS_SHIFT;
+
+ if (IS_CCM(flags))
+ cfg |= QCE_MAX_NONCE_WORDS << AUTH_NONCE_NUM_WORDS_SHIFT;
+
+ if (IS_CBC(flags) || IS_CTR(flags) || IS_CCM(flags) ||
+ IS_CMAC(flags))
+ cfg |= BIT(AUTH_LAST_SHIFT) | BIT(AUTH_FIRST_SHIFT);
+
+ return cfg;
+}
+
+static u32 qce_config_reg(struct qce_device *qce, int little)
+{
+ u32 beats = (qce->burst_size >> 3) - 1;
+ u32 pipe_pair = qce->pipe_pair_id;
+ u32 config;
+
+ config = (beats << REQ_SIZE_SHIFT) & REQ_SIZE_MASK;
+ config |= BIT(MASK_DOUT_INTR_SHIFT) | BIT(MASK_DIN_INTR_SHIFT) |
+ BIT(MASK_OP_DONE_INTR_SHIFT) | BIT(MASK_ERR_INTR_SHIFT);
+ config |= (pipe_pair << PIPE_SET_SELECT_SHIFT) & PIPE_SET_SELECT_MASK;
+ config &= ~HIGH_SPD_EN_N_SHIFT;
+
+ if (little)
+ config |= BIT(LITTLE_ENDIAN_MODE_SHIFT);
+
+ return config;
+}
+
+void qce_cpu_to_be32p_array(__be32 *dst, const u8 *src, unsigned int len)
+{
+ __be32 *d = dst;
+ const u8 *s = src;
+ unsigned int n;
+
+ n = len / sizeof(u32);
+ for (; n > 0; n--) {
+ *d = cpu_to_be32p((const __u32 *) s);
+ s += sizeof(__u32);
+ d++;
+ }
+}
+
+static void qce_xts_swapiv(__be32 *dst, const u8 *src, unsigned int ivsize)
+{
+ u8 swap[QCE_AES_IV_LENGTH];
+ u32 i, j;
+
+ if (ivsize > QCE_AES_IV_LENGTH)
+ return;
+
+ memset(swap, 0, QCE_AES_IV_LENGTH);
+
+ for (i = (QCE_AES_IV_LENGTH - ivsize), j = ivsize - 1;
+ i < QCE_AES_IV_LENGTH; i++, j--)
+ swap[i] = src[j];
+
+ qce_cpu_to_be32p_array(dst, swap, QCE_AES_IV_LENGTH);
+}
+
+static void qce_xtskey(struct qce_device *qce, const u8 *enckey,
+ unsigned int enckeylen, unsigned int cryptlen)
+{
+ u32 xtskey[QCE_MAX_CIPHER_KEY_SIZE / sizeof(u32)] = {0};
+ unsigned int xtsklen = enckeylen / (2 * sizeof(u32));
+ unsigned int xtsdusize;
+
+ qce_cpu_to_be32p_array(xtskey, enckey + enckeylen / 2, enckeylen / 2);
+ qce_write_array(qce, REG_ENCR_XTS_KEY0, xtskey, xtsklen);
+
+ /* xts du size 512B */
+ xtsdusize = min_t(u32, QCE_SECTOR_SIZE, cryptlen);
+ qce_write(qce, REG_ENCR_XTS_DU_SIZE, xtsdusize);
+}
+
+static void qce_setup_config(struct qce_device *qce)
+{
+ u32 config;
+
+ /* get big endianness */
+ config = qce_config_reg(qce, 0);
+
+ /* clear status */
+ qce_write(qce, REG_STATUS, 0);
+ qce_write(qce, REG_CONFIG, config);
+}
+
+static inline void qce_crypto_go(struct qce_device *qce)
+{
+ qce_write(qce, REG_GOPROC, BIT(GO_SHIFT) | BIT(RESULTS_DUMP_SHIFT));
+}
+
+static int qce_setup_regs_ahash(struct crypto_async_request *async_req,
+ u32 totallen, u32 offset)
+{
+ struct ahash_request *req = ahash_request_cast(async_req);
+ struct crypto_ahash *ahash = __crypto_ahash_cast(async_req->tfm);
+ struct qce_sha_reqctx *rctx = ahash_request_ctx(req);
+ struct qce_alg_template *tmpl = to_ahash_tmpl(async_req->tfm);
+ struct qce_device *qce = tmpl->qce;
+ unsigned int digestsize = crypto_ahash_digestsize(ahash);
+ unsigned int blocksize = crypto_tfm_alg_blocksize(async_req->tfm);
+ __be32 auth[SHA256_DIGEST_SIZE / sizeof(__be32)] = {0};
+ __be32 mackey[QCE_SHA_HMAC_KEY_SIZE / sizeof(__be32)] = {0};
+ u32 auth_cfg = 0, config;
+ unsigned int iv_words;
+
+ /* if not the last, the size has to be on the block boundary */
+ if (!rctx->last_blk && req->nbytes % blocksize)
+ return -EINVAL;
+
+ qce_setup_config(qce);
+
+ if (IS_CMAC(rctx->flags)) {
+ qce_write(qce, REG_AUTH_SEG_CFG, 0);
+ qce_write(qce, REG_ENCR_SEG_CFG, 0);
+ qce_write(qce, REG_ENCR_SEG_SIZE, 0);
+ qce_clear_array(qce, REG_AUTH_IV0, 16);
+ qce_clear_array(qce, REG_AUTH_KEY0, 16);
+ qce_clear_array(qce, REG_AUTH_BYTECNT0, 4);
+
+ auth_cfg = qce_auth_cfg(rctx->flags, rctx->authklen);
+ }
+
+ if (IS_SHA_HMAC(rctx->flags) || IS_CMAC(rctx->flags)) {
+ u32 authkey_words = rctx->authklen / sizeof(u32);
+
+ qce_cpu_to_be32p_array(mackey, rctx->authkey, rctx->authklen);
+ qce_write_array(qce, REG_AUTH_KEY0, mackey, authkey_words);
+ }
+
+ if (IS_CMAC(rctx->flags))
+ goto go_proc;
+
+ if (rctx->first_blk)
+ memcpy(auth, rctx->digest, digestsize);
+ else
+ qce_cpu_to_be32p_array(auth, rctx->digest, digestsize);
+
+ iv_words = (IS_SHA1(rctx->flags) || IS_SHA1_HMAC(rctx->flags)) ? 5 : 8;
+ qce_write_array(qce, REG_AUTH_IV0, auth, iv_words);
+
+ if (rctx->first_blk)
+ qce_clear_array(qce, REG_AUTH_BYTECNT0, 4);
+ else
+ qce_write_array(qce, REG_AUTH_BYTECNT0, rctx->byte_count, 2);
+
+ auth_cfg = qce_auth_cfg(rctx->flags, 0);
+
+ if (rctx->last_blk)
+ auth_cfg |= BIT(AUTH_LAST_SHIFT);
+ else
+ auth_cfg &= ~BIT(AUTH_LAST_SHIFT);
+
+ if (rctx->first_blk)
+ auth_cfg |= BIT(AUTH_FIRST_SHIFT);
+ else
+ auth_cfg &= ~BIT(AUTH_FIRST_SHIFT);
+
+go_proc:
+ qce_write(qce, REG_AUTH_SEG_CFG, auth_cfg);
+ qce_write(qce, REG_AUTH_SEG_SIZE, req->nbytes);
+ qce_write(qce, REG_AUTH_SEG_START, 0);
+ qce_write(qce, REG_ENCR_SEG_CFG, 0);
+ qce_write(qce, REG_SEG_SIZE, req->nbytes);
+
+ /* get little endianness */
+ config = qce_config_reg(qce, 1);
+ qce_write(qce, REG_CONFIG, config);
+
+ qce_crypto_go(qce);
+
+ return 0;
+}
+
+static int qce_setup_regs_ablkcipher(struct crypto_async_request *async_req,
+ u32 totallen, u32 offset)
+{
+ struct ablkcipher_request *req = ablkcipher_request_cast(async_req);
+ struct qce_cipher_reqctx *rctx = ablkcipher_request_ctx(req);
+ struct qce_cipher_ctx *ctx = crypto_tfm_ctx(async_req->tfm);
+ struct qce_alg_template *tmpl = to_cipher_tmpl(async_req->tfm);
+ struct qce_device *qce = tmpl->qce;
+ __be32 enckey[QCE_MAX_CIPHER_KEY_SIZE / sizeof(__be32)] = {0};
+ __be32 enciv[QCE_MAX_IV_SIZE / sizeof(__be32)] = {0};
+ unsigned int enckey_words, enciv_words;
+ unsigned int keylen;
+ u32 encr_cfg = 0, auth_cfg = 0, config;
+ unsigned int ivsize = rctx->ivsize;
+ unsigned long flags = rctx->flags;
+
+ qce_setup_config(qce);
+
+ if (IS_XTS(flags))
+ keylen = ctx->enc_keylen / 2;
+ else
+ keylen = ctx->enc_keylen;
+
+ qce_cpu_to_be32p_array(enckey, ctx->enc_key, keylen);
+ enckey_words = keylen / sizeof(u32);
+
+ qce_write(qce, REG_AUTH_SEG_CFG, auth_cfg);
+
+ encr_cfg = qce_encr_cfg(flags, keylen);
+
+ if (IS_DES(flags)) {
+ enciv_words = 2;
+ enckey_words = 2;
+ } else if (IS_3DES(flags)) {
+ enciv_words = 2;
+ enckey_words = 6;
+ } else if (IS_AES(flags)) {
+ if (IS_XTS(flags))
+ qce_xtskey(qce, ctx->enc_key, ctx->enc_keylen,
+ rctx->cryptlen);
+ enciv_words = 4;
+ } else {
+ return -EINVAL;
+ }
+
+ qce_write_array(qce, REG_ENCR_KEY0, enckey, enckey_words);
+
+ if (!IS_ECB(flags)) {
+ if (IS_XTS(flags))
+ qce_xts_swapiv(enciv, rctx->iv, ivsize);
+ else
+ qce_cpu_to_be32p_array(enciv, rctx->iv, ivsize);
+
+ qce_write_array(qce, REG_CNTR0_IV0, enciv, enciv_words);
+ }
+
+ if (IS_ENCRYPT(flags))
+ encr_cfg |= BIT(ENCODE_SHIFT);
+
+ qce_write(qce, REG_ENCR_SEG_CFG, encr_cfg);
+ qce_write(qce, REG_ENCR_SEG_SIZE, rctx->cryptlen);
+ qce_write(qce, REG_ENCR_SEG_START, offset & 0xffff);
+
+ if (IS_CTR(flags)) {
+ qce_write(qce, REG_CNTR_MASK, ~0);
+ qce_write(qce, REG_CNTR_MASK0, ~0);
+ qce_write(qce, REG_CNTR_MASK1, ~0);
+ qce_write(qce, REG_CNTR_MASK2, ~0);
+ }
+
+ qce_write(qce, REG_SEG_SIZE, totallen);
+
+ /* get little endianness */
+ config = qce_config_reg(qce, 1);
+ qce_write(qce, REG_CONFIG, config);
+
+ qce_crypto_go(qce);
+
+ return 0;
+}
+
+int qce_start(struct crypto_async_request *async_req, u32 type, u32 totallen,
+ u32 offset)
+{
+ switch (type) {
+ case CRYPTO_ALG_TYPE_ABLKCIPHER:
+ return qce_setup_regs_ablkcipher(async_req, totallen, offset);
+ case CRYPTO_ALG_TYPE_AHASH:
+ return qce_setup_regs_ahash(async_req, totallen, offset);
+ default:
+ return -EINVAL;
+ }
+}
+
+#define STATUS_ERRORS \
+ (BIT(SW_ERR_SHIFT) | BIT(AXI_ERR_SHIFT) | BIT(HSD_ERR_SHIFT))
+
+int qce_check_status(struct qce_device *qce, u32 *status)
+{
+ int ret = 0;
+
+ *status = qce_read(qce, REG_STATUS);
+
+ /*
+ * Don't use result dump status. The operation may not be complete.
+ * Instead, use the status we just read from device. In case, we need to
+ * use result_status from result dump the result_status needs to be byte
+ * swapped, since we set the device to little endian.
+ */
+ if (*status & STATUS_ERRORS || !(*status & BIT(OPERATION_DONE_SHIFT)))
+ ret = -ENXIO;
+
+ return ret;
+}
+
+void qce_get_version(struct qce_device *qce, u32 *major, u32 *minor, u32 *step)
+{
+ u32 val;
+
+ val = qce_read(qce, REG_VERSION);
+ *major = (val & CORE_MAJOR_REV_MASK) >> CORE_MAJOR_REV_SHIFT;
+ *minor = (val & CORE_MINOR_REV_MASK) >> CORE_MINOR_REV_SHIFT;
+ *step = (val & CORE_STEP_REV_MASK) >> CORE_STEP_REV_SHIFT;
+}
--- /dev/null
+/*
+ * Copyright (c) 2010-2014, The Linux Foundation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 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.
+ */
+
+#ifndef _COMMON_H_
+#define _COMMON_H_
+
+#include <linux/crypto.h>
+#include <linux/types.h>
+#include <crypto/aes.h>
+#include <crypto/hash.h>
+
+/* key size in bytes */
+#define QCE_SHA_HMAC_KEY_SIZE 64
+#define QCE_MAX_CIPHER_KEY_SIZE AES_KEYSIZE_256
+
+/* IV length in bytes */
+#define QCE_AES_IV_LENGTH AES_BLOCK_SIZE
+/* max of AES_BLOCK_SIZE, DES3_EDE_BLOCK_SIZE */
+#define QCE_MAX_IV_SIZE AES_BLOCK_SIZE
+
+/* maximum nonce bytes */
+#define QCE_MAX_NONCE 16
+#define QCE_MAX_NONCE_WORDS (QCE_MAX_NONCE / sizeof(u32))
+
+/* burst size alignment requirement */
+#define QCE_MAX_ALIGN_SIZE 64
+
+/* cipher algorithms */
+#define QCE_ALG_DES BIT(0)
+#define QCE_ALG_3DES BIT(1)
+#define QCE_ALG_AES BIT(2)
+
+/* hash and hmac algorithms */
+#define QCE_HASH_SHA1 BIT(3)
+#define QCE_HASH_SHA256 BIT(4)
+#define QCE_HASH_SHA1_HMAC BIT(5)
+#define QCE_HASH_SHA256_HMAC BIT(6)
+#define QCE_HASH_AES_CMAC BIT(7)
+
+/* cipher modes */
+#define QCE_MODE_CBC BIT(8)
+#define QCE_MODE_ECB BIT(9)
+#define QCE_MODE_CTR BIT(10)
+#define QCE_MODE_XTS BIT(11)
+#define QCE_MODE_CCM BIT(12)
+#define QCE_MODE_MASK GENMASK(12, 8)
+
+/* cipher encryption/decryption operations */
+#define QCE_ENCRYPT BIT(13)
+#define QCE_DECRYPT BIT(14)
+
+#define IS_DES(flags) (flags & QCE_ALG_DES)
+#define IS_3DES(flags) (flags & QCE_ALG_3DES)
+#define IS_AES(flags) (flags & QCE_ALG_AES)
+
+#define IS_SHA1(flags) (flags & QCE_HASH_SHA1)
+#define IS_SHA256(flags) (flags & QCE_HASH_SHA256)
+#define IS_SHA1_HMAC(flags) (flags & QCE_HASH_SHA1_HMAC)
+#define IS_SHA256_HMAC(flags) (flags & QCE_HASH_SHA256_HMAC)
+#define IS_CMAC(flags) (flags & QCE_HASH_AES_CMAC)
+#define IS_SHA(flags) (IS_SHA1(flags) || IS_SHA256(flags))
+#define IS_SHA_HMAC(flags) \
+ (IS_SHA1_HMAC(flags) || IS_SHA256_HMAC(flags))
+
+#define IS_CBC(mode) (mode & QCE_MODE_CBC)
+#define IS_ECB(mode) (mode & QCE_MODE_ECB)
+#define IS_CTR(mode) (mode & QCE_MODE_CTR)
+#define IS_XTS(mode) (mode & QCE_MODE_XTS)
+#define IS_CCM(mode) (mode & QCE_MODE_CCM)
+
+#define IS_ENCRYPT(dir) (dir & QCE_ENCRYPT)
+#define IS_DECRYPT(dir) (dir & QCE_DECRYPT)
+
+struct qce_alg_template {
+ struct list_head entry;
+ u32 crypto_alg_type;
+ unsigned long alg_flags;
+ const __be32 *std_iv;
+ union {
+ struct crypto_alg crypto;
+ struct ahash_alg ahash;
+ } alg;
+ struct qce_device *qce;
+};
+
+void qce_cpu_to_be32p_array(__be32 *dst, const u8 *src, unsigned int len);
+int qce_check_status(struct qce_device *qce, u32 *status);
+void qce_get_version(struct qce_device *qce, u32 *major, u32 *minor, u32 *step);
+int qce_start(struct crypto_async_request *async_req, u32 type, u32 totallen,
+ u32 offset);
+
+#endif /* _COMMON_H_ */
--- /dev/null
+/*
+ * Copyright (c) 2010-2014, The Linux Foundation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 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.
+ */
+
+#include <linux/clk.h>
+#include <linux/interrupt.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <linux/spinlock.h>
+#include <linux/types.h>
+#include <crypto/algapi.h>
+#include <crypto/internal/hash.h>
+#include <crypto/sha.h>
+
+#include "core.h"
+#include "cipher.h"
+#include "sha.h"
+
+#define QCE_MAJOR_VERSION5 0x05
+#define QCE_QUEUE_LENGTH 1
+
+static const struct qce_algo_ops *qce_ops[] = {
+ &ablkcipher_ops,
+ &ahash_ops,
+};
+
+static void qce_unregister_algs(struct qce_device *qce)
+{
+ const struct qce_algo_ops *ops;
+ int i;
+
+ for (i = 0; i < ARRAY_SIZE(qce_ops); i++) {
+ ops = qce_ops[i];
+ ops->unregister_algs(qce);
+ }
+}
+
+static int qce_register_algs(struct qce_device *qce)
+{
+ const struct qce_algo_ops *ops;
+ int i, ret = -ENODEV;
+
+ for (i = 0; i < ARRAY_SIZE(qce_ops); i++) {
+ ops = qce_ops[i];
+ ret = ops->register_algs(qce);
+ if (ret)
+ break;
+ }
+
+ return ret;
+}
+
+static int qce_handle_request(struct crypto_async_request *async_req)
+{
+ int ret = -EINVAL, i;
+ const struct qce_algo_ops *ops;
+ u32 type = crypto_tfm_alg_type(async_req->tfm);
+
+ for (i = 0; i < ARRAY_SIZE(qce_ops); i++) {
+ ops = qce_ops[i];
+ if (type != ops->type)
+ continue;
+ ret = ops->async_req_handle(async_req);
+ break;
+ }
+
+ return ret;
+}
+
+static int qce_handle_queue(struct qce_device *qce,
+ struct crypto_async_request *req)
+{
+ struct crypto_async_request *async_req, *backlog;
+ unsigned long flags;
+ int ret = 0, err;
+
+ spin_lock_irqsave(&qce->lock, flags);
+
+ if (req)
+ ret = crypto_enqueue_request(&qce->queue, req);
+
+ /* busy, do not dequeue request */
+ if (qce->req) {
+ spin_unlock_irqrestore(&qce->lock, flags);
+ return ret;
+ }
+
+ backlog = crypto_get_backlog(&qce->queue);
+ async_req = crypto_dequeue_request(&qce->queue);
+ if (async_req)
+ qce->req = async_req;
+
+ spin_unlock_irqrestore(&qce->lock, flags);
+
+ if (!async_req)
+ return ret;
+
+ if (backlog) {
+ spin_lock_bh(&qce->lock);
+ backlog->complete(backlog, -EINPROGRESS);
+ spin_unlock_bh(&qce->lock);
+ }
+
+ err = qce_handle_request(async_req);
+ if (err) {
+ qce->result = err;
+ tasklet_schedule(&qce->done_tasklet);
+ }
+
+ return ret;
+}
+
+static void qce_tasklet_req_done(unsigned long data)
+{
+ struct qce_device *qce = (struct qce_device *)data;
+ struct crypto_async_request *req;
+ unsigned long flags;
+
+ spin_lock_irqsave(&qce->lock, flags);
+ req = qce->req;
+ qce->req = NULL;
+ spin_unlock_irqrestore(&qce->lock, flags);
+
+ if (req)
+ req->complete(req, qce->result);
+
+ qce_handle_queue(qce, NULL);
+}
+
+static int qce_async_request_enqueue(struct qce_device *qce,
+ struct crypto_async_request *req)
+{
+ return qce_handle_queue(qce, req);
+}
+
+static void qce_async_request_done(struct qce_device *qce, int ret)
+{
+ qce->result = ret;
+ tasklet_schedule(&qce->done_tasklet);
+}
+
+static int qce_check_version(struct qce_device *qce)
+{
+ u32 major, minor, step;
+
+ qce_get_version(qce, &major, &minor, &step);
+
+ /*
+ * the driver does not support v5 with minor 0 because it has special
+ * alignment requirements.
+ */
+ if (major != QCE_MAJOR_VERSION5 || minor == 0)
+ return -ENODEV;
+
+ qce->burst_size = QCE_BAM_BURST_SIZE;
+ qce->pipe_pair_id = 1;
+
+ dev_dbg(qce->dev, "Crypto device found, version %d.%d.%d\n",
+ major, minor, step);
+
+ return 0;
+}
+
+static int qce_crypto_probe(struct platform_device *pdev)
+{
+ struct device *dev = &pdev->dev;
+ struct qce_device *qce;
+ struct resource *res;
+ int ret;
+
+ qce = devm_kzalloc(dev, sizeof(*qce), GFP_KERNEL);
+ if (!qce)
+ return -ENOMEM;
+
+ qce->dev = dev;
+ platform_set_drvdata(pdev, qce);
+
+ res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+ qce->base = devm_ioremap_resource(&pdev->dev, res);
+ if (IS_ERR(qce->base))
+ return PTR_ERR(qce->base);
+
+ ret = dma_set_mask_and_coherent(dev, DMA_BIT_MASK(32));
+ if (ret < 0)
+ return ret;
+
+ qce->core = devm_clk_get(qce->dev, "core");
+ if (IS_ERR(qce->core))
+ return PTR_ERR(qce->core);
+
+ qce->iface = devm_clk_get(qce->dev, "iface");
+ if (IS_ERR(qce->iface))
+ return PTR_ERR(qce->iface);
+
+ qce->bus = devm_clk_get(qce->dev, "bus");
+ if (IS_ERR(qce->bus))
+ return PTR_ERR(qce->bus);
+
+ ret = clk_prepare_enable(qce->core);
+ if (ret)
+ return ret;
+
+ ret = clk_prepare_enable(qce->iface);
+ if (ret)
+ goto err_clks_core;
+
+ ret = clk_prepare_enable(qce->bus);
+ if (ret)
+ goto err_clks_iface;
+
+ ret = qce_dma_request(qce->dev, &qce->dma);
+ if (ret)
+ goto err_clks;
+
+ ret = qce_check_version(qce);
+ if (ret)
+ goto err_clks;
+
+ spin_lock_init(&qce->lock);
+ tasklet_init(&qce->done_tasklet, qce_tasklet_req_done,
+ (unsigned long)qce);
+ crypto_init_queue(&qce->queue, QCE_QUEUE_LENGTH);
+
+ qce->async_req_enqueue = qce_async_request_enqueue;
+ qce->async_req_done = qce_async_request_done;
+
+ ret = qce_register_algs(qce);
+ if (ret)
+ goto err_dma;
+
+ return 0;
+
+err_dma:
+ qce_dma_release(&qce->dma);
+err_clks:
+ clk_disable_unprepare(qce->bus);
+err_clks_iface:
+ clk_disable_unprepare(qce->iface);
+err_clks_core:
+ clk_disable_unprepare(qce->core);
+ return ret;
+}
+
+static int qce_crypto_remove(struct platform_device *pdev)
+{
+ struct qce_device *qce = platform_get_drvdata(pdev);
+
+ tasklet_kill(&qce->done_tasklet);
+ qce_unregister_algs(qce);
+ qce_dma_release(&qce->dma);
+ clk_disable_unprepare(qce->bus);
+ clk_disable_unprepare(qce->iface);
+ clk_disable_unprepare(qce->core);
+ return 0;
+}
+
+static const struct of_device_id qce_crypto_of_match[] = {
+ { .compatible = "qcom,crypto-v5.1", },
+ {}
+};
+MODULE_DEVICE_TABLE(of, qce_crypto_of_match);
+
+static struct platform_driver qce_crypto_driver = {
+ .probe = qce_crypto_probe,
+ .remove = qce_crypto_remove,
+ .driver = {
+ .owner = THIS_MODULE,
+ .name = KBUILD_MODNAME,
+ .of_match_table = qce_crypto_of_match,
+ },
+};
+module_platform_driver(qce_crypto_driver);
+
+MODULE_LICENSE("GPL v2");
+MODULE_DESCRIPTION("Qualcomm crypto engine driver");
+MODULE_ALIAS("platform:" KBUILD_MODNAME);
+MODULE_AUTHOR("The Linux Foundation");
--- /dev/null
+/*
+ * Copyright (c) 2010-2014, The Linux Foundation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 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.
+ */
+
+#ifndef _CORE_H_
+#define _CORE_H_
+
+#include "dma.h"
+
+/**
+ * struct qce_device - crypto engine device structure
+ * @queue: crypto request queue
+ * @lock: the lock protects queue and req
+ * @done_tasklet: done tasklet object
+ * @req: current active request
+ * @result: result of current transform
+ * @base: virtual IO base
+ * @dev: pointer to device structure
+ * @core: core device clock
+ * @iface: interface clock
+ * @bus: bus clock
+ * @dma: pointer to dma data
+ * @burst_size: the crypto burst size
+ * @pipe_pair_id: which pipe pair id the device using
+ * @async_req_enqueue: invoked by every algorithm to enqueue a request
+ * @async_req_done: invoked by every algorithm to finish its request
+ */
+struct qce_device {
+ struct crypto_queue queue;
+ spinlock_t lock;
+ struct tasklet_struct done_tasklet;
+ struct crypto_async_request *req;
+ int result;
+ void __iomem *base;
+ struct device *dev;
+ struct clk *core, *iface, *bus;
+ struct qce_dma_data dma;
+ int burst_size;
+ unsigned int pipe_pair_id;
+ int (*async_req_enqueue)(struct qce_device *qce,
+ struct crypto_async_request *req);
+ void (*async_req_done)(struct qce_device *qce, int ret);
+};
+
+/**
+ * struct qce_algo_ops - algorithm operations per crypto type
+ * @type: should be CRYPTO_ALG_TYPE_XXX
+ * @register_algs: invoked by core to register the algorithms
+ * @unregister_algs: invoked by core to unregister the algorithms
+ * @async_req_handle: invoked by core to handle enqueued request
+ */
+struct qce_algo_ops {
+ u32 type;
+ int (*register_algs)(struct qce_device *qce);
+ void (*unregister_algs)(struct qce_device *qce);
+ int (*async_req_handle)(struct crypto_async_request *async_req);
+};
+
+#endif /* _CORE_H_ */
--- /dev/null
+/*
+ * Copyright (c) 2012-2014, The Linux Foundation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 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.
+ */
+
+#include <linux/dmaengine.h>
+#include <crypto/scatterwalk.h>
+
+#include "dma.h"
+
+int qce_dma_request(struct device *dev, struct qce_dma_data *dma)
+{
+ int ret;
+
+ dma->txchan = dma_request_slave_channel_reason(dev, "tx");
+ if (IS_ERR(dma->txchan))
+ return PTR_ERR(dma->txchan);
+
+ dma->rxchan = dma_request_slave_channel_reason(dev, "rx");
+ if (IS_ERR(dma->rxchan)) {
+ ret = PTR_ERR(dma->rxchan);
+ goto error_rx;
+ }
+
+ dma->result_buf = kmalloc(QCE_RESULT_BUF_SZ + QCE_IGNORE_BUF_SZ,
+ GFP_KERNEL);
+ if (!dma->result_buf) {
+ ret = -ENOMEM;
+ goto error_nomem;
+ }
+
+ dma->ignore_buf = dma->result_buf + QCE_RESULT_BUF_SZ;
+
+ return 0;
+error_nomem:
+ dma_release_channel(dma->rxchan);
+error_rx:
+ dma_release_channel(dma->txchan);
+ return ret;
+}
+
+void qce_dma_release(struct qce_dma_data *dma)
+{
+ dma_release_channel(dma->txchan);
+ dma_release_channel(dma->rxchan);
+ kfree(dma->result_buf);
+}
+
+int qce_mapsg(struct device *dev, struct scatterlist *sg, int nents,
+ enum dma_data_direction dir, bool chained)
+{
+ int err;
+
+ if (chained) {
+ while (sg) {
+ err = dma_map_sg(dev, sg, 1, dir);
+ if (!err)
+ return -EFAULT;
+ sg = scatterwalk_sg_next(sg);
+ }
+ } else {
+ err = dma_map_sg(dev, sg, nents, dir);
+ if (!err)
+ return -EFAULT;
+ }
+
+ return nents;
+}
+
+void qce_unmapsg(struct device *dev, struct scatterlist *sg, int nents,
+ enum dma_data_direction dir, bool chained)
+{
+ if (chained)
+ while (sg) {
+ dma_unmap_sg(dev, sg, 1, dir);
+ sg = scatterwalk_sg_next(sg);
+ }
+ else
+ dma_unmap_sg(dev, sg, nents, dir);
+}
+
+int qce_countsg(struct scatterlist *sglist, int nbytes, bool *chained)
+{
+ struct scatterlist *sg = sglist;
+ int nents = 0;
+
+ if (chained)
+ *chained = false;
+
+ while (nbytes > 0 && sg) {
+ nents++;
+ nbytes -= sg->length;
+ if (!sg_is_last(sg) && (sg + 1)->length == 0 && chained)
+ *chained = true;
+ sg = scatterwalk_sg_next(sg);
+ }
+
+ return nents;
+}
+
+struct scatterlist *
+qce_sgtable_add(struct sg_table *sgt, struct scatterlist *new_sgl)
+{
+ struct scatterlist *sg = sgt->sgl, *sg_last = NULL;
+
+ while (sg) {
+ if (!sg_page(sg))
+ break;
+ sg = sg_next(sg);
+ }
+
+ if (!sg)
+ return ERR_PTR(-EINVAL);
+
+ while (new_sgl && sg) {
+ sg_set_page(sg, sg_page(new_sgl), new_sgl->length,
+ new_sgl->offset);
+ sg_last = sg;
+ sg = sg_next(sg);
+ new_sgl = sg_next(new_sgl);
+ }
+
+ return sg_last;
+}
+
+static int qce_dma_prep_sg(struct dma_chan *chan, struct scatterlist *sg,
+ int nents, unsigned long flags,
+ enum dma_transfer_direction dir,
+ dma_async_tx_callback cb, void *cb_param)
+{
+ struct dma_async_tx_descriptor *desc;
+ dma_cookie_t cookie;
+
+ if (!sg || !nents)
+ return -EINVAL;
+
+ desc = dmaengine_prep_slave_sg(chan, sg, nents, dir, flags);
+ if (!desc)
+ return -EINVAL;
+
+ desc->callback = cb;
+ desc->callback_param = cb_param;
+ cookie = dmaengine_submit(desc);
+
+ return dma_submit_error(cookie);
+}
+
+int qce_dma_prep_sgs(struct qce_dma_data *dma, struct scatterlist *rx_sg,
+ int rx_nents, struct scatterlist *tx_sg, int tx_nents,
+ dma_async_tx_callback cb, void *cb_param)
+{
+ struct dma_chan *rxchan = dma->rxchan;
+ struct dma_chan *txchan = dma->txchan;
+ unsigned long flags = DMA_PREP_INTERRUPT | DMA_CTRL_ACK;
+ int ret;
+
+ ret = qce_dma_prep_sg(rxchan, rx_sg, rx_nents, flags, DMA_MEM_TO_DEV,
+ NULL, NULL);
+ if (ret)
+ return ret;
+
+ return qce_dma_prep_sg(txchan, tx_sg, tx_nents, flags, DMA_DEV_TO_MEM,
+ cb, cb_param);
+}
+
+void qce_dma_issue_pending(struct qce_dma_data *dma)
+{
+ dma_async_issue_pending(dma->rxchan);
+ dma_async_issue_pending(dma->txchan);
+}
+
+int qce_dma_terminate_all(struct qce_dma_data *dma)
+{
+ int ret;
+
+ ret = dmaengine_terminate_all(dma->rxchan);
+ return ret ?: dmaengine_terminate_all(dma->txchan);
+}
--- /dev/null
+/*
+ * Copyright (c) 2011-2014, The Linux Foundation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 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.
+ */
+
+#ifndef _DMA_H_
+#define _DMA_H_
+
+/* maximum data transfer block size between BAM and CE */
+#define QCE_BAM_BURST_SIZE 64
+
+#define QCE_AUTHIV_REGS_CNT 16
+#define QCE_AUTH_BYTECOUNT_REGS_CNT 4
+#define QCE_CNTRIV_REGS_CNT 4
+
+struct qce_result_dump {
+ u32 auth_iv[QCE_AUTHIV_REGS_CNT];
+ u32 auth_byte_count[QCE_AUTH_BYTECOUNT_REGS_CNT];
+ u32 encr_cntr_iv[QCE_CNTRIV_REGS_CNT];
+ u32 status;
+ u32 status2;
+};
+
+#define QCE_IGNORE_BUF_SZ (2 * QCE_BAM_BURST_SIZE)
+#define QCE_RESULT_BUF_SZ \
+ ALIGN(sizeof(struct qce_result_dump), QCE_BAM_BURST_SIZE)
+
+struct qce_dma_data {
+ struct dma_chan *txchan;
+ struct dma_chan *rxchan;
+ struct qce_result_dump *result_buf;
+ void *ignore_buf;
+};
+
+int qce_dma_request(struct device *dev, struct qce_dma_data *dma);
+void qce_dma_release(struct qce_dma_data *dma);
+int qce_dma_prep_sgs(struct qce_dma_data *dma, struct scatterlist *sg_in,
+ int in_ents, struct scatterlist *sg_out, int out_ents,
+ dma_async_tx_callback cb, void *cb_param);
+void qce_dma_issue_pending(struct qce_dma_data *dma);
+int qce_dma_terminate_all(struct qce_dma_data *dma);
+int qce_countsg(struct scatterlist *sg_list, int nbytes, bool *chained);
+void qce_unmapsg(struct device *dev, struct scatterlist *sg, int nents,
+ enum dma_data_direction dir, bool chained);
+int qce_mapsg(struct device *dev, struct scatterlist *sg, int nents,
+ enum dma_data_direction dir, bool chained);
+struct scatterlist *
+qce_sgtable_add(struct sg_table *sgt, struct scatterlist *sg_add);
+
+#endif /* _DMA_H_ */
--- /dev/null
+/*
+ * Copyright (c) 2012-2014, The Linux Foundation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 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.
+ */
+
+#ifndef _REGS_V5_H_
+#define _REGS_V5_H_
+
+#include <linux/bitops.h>
+
+#define REG_VERSION 0x000
+#define REG_STATUS 0x100
+#define REG_STATUS2 0x104
+#define REG_ENGINES_AVAIL 0x108
+#define REG_FIFO_SIZES 0x10c
+#define REG_SEG_SIZE 0x110
+#define REG_GOPROC 0x120
+#define REG_ENCR_SEG_CFG 0x200
+#define REG_ENCR_SEG_SIZE 0x204
+#define REG_ENCR_SEG_START 0x208
+#define REG_CNTR0_IV0 0x20c
+#define REG_CNTR1_IV1 0x210
+#define REG_CNTR2_IV2 0x214
+#define REG_CNTR3_IV3 0x218
+#define REG_CNTR_MASK 0x21C
+#define REG_ENCR_CCM_INT_CNTR0 0x220
+#define REG_ENCR_CCM_INT_CNTR1 0x224
+#define REG_ENCR_CCM_INT_CNTR2 0x228
+#define REG_ENCR_CCM_INT_CNTR3 0x22c
+#define REG_ENCR_XTS_DU_SIZE 0x230
+#define REG_CNTR_MASK2 0x234
+#define REG_CNTR_MASK1 0x238
+#define REG_CNTR_MASK0 0x23c
+#define REG_AUTH_SEG_CFG 0x300
+#define REG_AUTH_SEG_SIZE 0x304
+#define REG_AUTH_SEG_START 0x308
+#define REG_AUTH_IV0 0x310
+#define REG_AUTH_IV1 0x314
+#define REG_AUTH_IV2 0x318
+#define REG_AUTH_IV3 0x31c
+#define REG_AUTH_IV4 0x320
+#define REG_AUTH_IV5 0x324
+#define REG_AUTH_IV6 0x328
+#define REG_AUTH_IV7 0x32c
+#define REG_AUTH_IV8 0x330
+#define REG_AUTH_IV9 0x334
+#define REG_AUTH_IV10 0x338
+#define REG_AUTH_IV11 0x33c
+#define REG_AUTH_IV12 0x340
+#define REG_AUTH_IV13 0x344
+#define REG_AUTH_IV14 0x348
+#define REG_AUTH_IV15 0x34c
+#define REG_AUTH_INFO_NONCE0 0x350
+#define REG_AUTH_INFO_NONCE1 0x354
+#define REG_AUTH_INFO_NONCE2 0x358
+#define REG_AUTH_INFO_NONCE3 0x35c
+#define REG_AUTH_BYTECNT0 0x390
+#define REG_AUTH_BYTECNT1 0x394
+#define REG_AUTH_BYTECNT2 0x398
+#define REG_AUTH_BYTECNT3 0x39c
+#define REG_AUTH_EXP_MAC0 0x3a0
+#define REG_AUTH_EXP_MAC1 0x3a4
+#define REG_AUTH_EXP_MAC2 0x3a8
+#define REG_AUTH_EXP_MAC3 0x3ac
+#define REG_AUTH_EXP_MAC4 0x3b0
+#define REG_AUTH_EXP_MAC5 0x3b4
+#define REG_AUTH_EXP_MAC6 0x3b8
+#define REG_AUTH_EXP_MAC7 0x3bc
+#define REG_CONFIG 0x400
+#define REG_GOPROC_QC_KEY 0x1000
+#define REG_GOPROC_OEM_KEY 0x2000
+#define REG_ENCR_KEY0 0x3000
+#define REG_ENCR_KEY1 0x3004
+#define REG_ENCR_KEY2 0x3008
+#define REG_ENCR_KEY3 0x300c
+#define REG_ENCR_KEY4 0x3010
+#define REG_ENCR_KEY5 0x3014
+#define REG_ENCR_KEY6 0x3018
+#define REG_ENCR_KEY7 0x301c
+#define REG_ENCR_XTS_KEY0 0x3020
+#define REG_ENCR_XTS_KEY1 0x3024
+#define REG_ENCR_XTS_KEY2 0x3028
+#define REG_ENCR_XTS_KEY3 0x302c
+#define REG_ENCR_XTS_KEY4 0x3030
+#define REG_ENCR_XTS_KEY5 0x3034
+#define REG_ENCR_XTS_KEY6 0x3038
+#define REG_ENCR_XTS_KEY7 0x303c
+#define REG_AUTH_KEY0 0x3040
+#define REG_AUTH_KEY1 0x3044
+#define REG_AUTH_KEY2 0x3048
+#define REG_AUTH_KEY3 0x304c
+#define REG_AUTH_KEY4 0x3050
+#define REG_AUTH_KEY5 0x3054
+#define REG_AUTH_KEY6 0x3058
+#define REG_AUTH_KEY7 0x305c
+#define REG_AUTH_KEY8 0x3060
+#define REG_AUTH_KEY9 0x3064
+#define REG_AUTH_KEY10 0x3068
+#define REG_AUTH_KEY11 0x306c
+#define REG_AUTH_KEY12 0x3070
+#define REG_AUTH_KEY13 0x3074
+#define REG_AUTH_KEY14 0x3078
+#define REG_AUTH_KEY15 0x307c
+
+/* Register bits - REG_VERSION */
+#define CORE_STEP_REV_SHIFT 0
+#define CORE_STEP_REV_MASK GENMASK(15, 0)
+#define CORE_MINOR_REV_SHIFT 16
+#define CORE_MINOR_REV_MASK GENMASK(23, 16)
+#define CORE_MAJOR_REV_SHIFT 24
+#define CORE_MAJOR_REV_MASK GENMASK(31, 24)
+
+/* Register bits - REG_STATUS */
+#define MAC_FAILED_SHIFT 31
+#define DOUT_SIZE_AVAIL_SHIFT 26
+#define DOUT_SIZE_AVAIL_MASK GENMASK(30, 26)
+#define DIN_SIZE_AVAIL_SHIFT 21
+#define DIN_SIZE_AVAIL_MASK GENMASK(25, 21)
+#define HSD_ERR_SHIFT 20
+#define ACCESS_VIOL_SHIFT 19
+#define PIPE_ACTIVE_ERR_SHIFT 18
+#define CFG_CHNG_ERR_SHIFT 17
+#define DOUT_ERR_SHIFT 16
+#define DIN_ERR_SHIFT 15
+#define AXI_ERR_SHIFT 14
+#define CRYPTO_STATE_SHIFT 10
+#define CRYPTO_STATE_MASK GENMASK(13, 10)
+#define ENCR_BUSY_SHIFT 9
+#define AUTH_BUSY_SHIFT 8
+#define DOUT_INTR_SHIFT 7
+#define DIN_INTR_SHIFT 6
+#define OP_DONE_INTR_SHIFT 5
+#define ERR_INTR_SHIFT 4
+#define DOUT_RDY_SHIFT 3
+#define DIN_RDY_SHIFT 2
+#define OPERATION_DONE_SHIFT 1
+#define SW_ERR_SHIFT 0
+
+/* Register bits - REG_STATUS2 */
+#define AXI_EXTRA_SHIFT 1
+#define LOCKED_SHIFT 2
+
+/* Register bits - REG_CONFIG */
+#define REQ_SIZE_SHIFT 17
+#define REQ_SIZE_MASK GENMASK(20, 17)
+#define REQ_SIZE_ENUM_1_BEAT 0
+#define REQ_SIZE_ENUM_2_BEAT 1
+#define REQ_SIZE_ENUM_3_BEAT 2
+#define REQ_SIZE_ENUM_4_BEAT 3
+#define REQ_SIZE_ENUM_5_BEAT 4
+#define REQ_SIZE_ENUM_6_BEAT 5
+#define REQ_SIZE_ENUM_7_BEAT 6
+#define REQ_SIZE_ENUM_8_BEAT 7
+#define REQ_SIZE_ENUM_9_BEAT 8
+#define REQ_SIZE_ENUM_10_BEAT 9
+#define REQ_SIZE_ENUM_11_BEAT 10
+#define REQ_SIZE_ENUM_12_BEAT 11
+#define REQ_SIZE_ENUM_13_BEAT 12
+#define REQ_SIZE_ENUM_14_BEAT 13
+#define REQ_SIZE_ENUM_15_BEAT 14
+#define REQ_SIZE_ENUM_16_BEAT 15
+
+#define MAX_QUEUED_REQ_SHIFT 14
+#define MAX_QUEUED_REQ_MASK GENMASK(24, 16)
+#define ENUM_1_QUEUED_REQS 0
+#define ENUM_2_QUEUED_REQS 1
+#define ENUM_3_QUEUED_REQS 2
+
+#define IRQ_ENABLES_SHIFT 10
+#define IRQ_ENABLES_MASK GENMASK(13, 10)
+
+#define LITTLE_ENDIAN_MODE_SHIFT 9
+#define PIPE_SET_SELECT_SHIFT 5
+#define PIPE_SET_SELECT_MASK GENMASK(8, 5)
+
+#define HIGH_SPD_EN_N_SHIFT 4
+#define MASK_DOUT_INTR_SHIFT 3
+#define MASK_DIN_INTR_SHIFT 2
+#define MASK_OP_DONE_INTR_SHIFT 1
+#define MASK_ERR_INTR_SHIFT 0
+
+/* Register bits - REG_AUTH_SEG_CFG */
+#define COMP_EXP_MAC_SHIFT 24
+#define COMP_EXP_MAC_DISABLED 0
+#define COMP_EXP_MAC_ENABLED 1
+
+#define F9_DIRECTION_SHIFT 23
+#define F9_DIRECTION_UPLINK 0
+#define F9_DIRECTION_DOWNLINK 1
+
+#define AUTH_NONCE_NUM_WORDS_SHIFT 20
+#define AUTH_NONCE_NUM_WORDS_MASK GENMASK(22, 20)
+
+#define USE_PIPE_KEY_AUTH_SHIFT 19
+#define USE_HW_KEY_AUTH_SHIFT 18
+#define AUTH_FIRST_SHIFT 17
+#define AUTH_LAST_SHIFT 16
+
+#define AUTH_POS_SHIFT 14
+#define AUTH_POS_MASK GENMASK(15, 14)
+#define AUTH_POS_BEFORE 0
+#define AUTH_POS_AFTER 1
+
+#define AUTH_SIZE_SHIFT 9
+#define AUTH_SIZE_MASK GENMASK(13, 9)
+#define AUTH_SIZE_SHA1 0
+#define AUTH_SIZE_SHA256 1
+#define AUTH_SIZE_ENUM_1_BYTES 0
+#define AUTH_SIZE_ENUM_2_BYTES 1
+#define AUTH_SIZE_ENUM_3_BYTES 2
+#define AUTH_SIZE_ENUM_4_BYTES 3
+#define AUTH_SIZE_ENUM_5_BYTES 4
+#define AUTH_SIZE_ENUM_6_BYTES 5
+#define AUTH_SIZE_ENUM_7_BYTES 6
+#define AUTH_SIZE_ENUM_8_BYTES 7
+#define AUTH_SIZE_ENUM_9_BYTES 8
+#define AUTH_SIZE_ENUM_10_BYTES 9
+#define AUTH_SIZE_ENUM_11_BYTES 10
+#define AUTH_SIZE_ENUM_12_BYTES 11
+#define AUTH_SIZE_ENUM_13_BYTES 12
+#define AUTH_SIZE_ENUM_14_BYTES 13
+#define AUTH_SIZE_ENUM_15_BYTES 14
+#define AUTH_SIZE_ENUM_16_BYTES 15
+
+#define AUTH_MODE_SHIFT 6
+#define AUTH_MODE_MASK GENMASK(8, 6)
+#define AUTH_MODE_HASH 0
+#define AUTH_MODE_HMAC 1
+#define AUTH_MODE_CCM 0
+#define AUTH_MODE_CMAC 1
+
+#define AUTH_KEY_SIZE_SHIFT 3
+#define AUTH_KEY_SIZE_MASK GENMASK(5, 3)
+#define AUTH_KEY_SZ_AES128 0
+#define AUTH_KEY_SZ_AES256 2
+
+#define AUTH_ALG_SHIFT 0
+#define AUTH_ALG_MASK GENMASK(2, 0)
+#define AUTH_ALG_NONE 0
+#define AUTH_ALG_SHA 1
+#define AUTH_ALG_AES 2
+#define AUTH_ALG_KASUMI 3
+#define AUTH_ALG_SNOW3G 4
+#define AUTH_ALG_ZUC 5
+
+/* Register bits - REG_ENCR_XTS_DU_SIZE */
+#define ENCR_XTS_DU_SIZE_SHIFT 0
+#define ENCR_XTS_DU_SIZE_MASK GENMASK(19, 0)
+
+/* Register bits - REG_ENCR_SEG_CFG */
+#define F8_KEYSTREAM_ENABLE_SHIFT 17
+#define F8_KEYSTREAM_DISABLED 0
+#define F8_KEYSTREAM_ENABLED 1
+
+#define F8_DIRECTION_SHIFT 16
+#define F8_DIRECTION_UPLINK 0
+#define F8_DIRECTION_DOWNLINK 1
+
+#define USE_PIPE_KEY_ENCR_SHIFT 15
+#define USE_PIPE_KEY_ENCR_ENABLED 1
+#define USE_KEY_REGISTERS 0
+
+#define USE_HW_KEY_ENCR_SHIFT 14
+#define USE_KEY_REG 0
+#define USE_HW_KEY 1
+
+#define LAST_CCM_SHIFT 13
+#define LAST_CCM_XFR 1
+#define INTERM_CCM_XFR 0
+
+#define CNTR_ALG_SHIFT 11
+#define CNTR_ALG_MASK GENMASK(12, 11)
+#define CNTR_ALG_NIST 0
+
+#define ENCODE_SHIFT 10
+
+#define ENCR_MODE_SHIFT 6
+#define ENCR_MODE_MASK GENMASK(9, 6)
+#define ENCR_MODE_ECB 0
+#define ENCR_MODE_CBC 1
+#define ENCR_MODE_CTR 2
+#define ENCR_MODE_XTS 3
+#define ENCR_MODE_CCM 4
+
+#define ENCR_KEY_SZ_SHIFT 3
+#define ENCR_KEY_SZ_MASK GENMASK(5, 3)
+#define ENCR_KEY_SZ_DES 0
+#define ENCR_KEY_SZ_3DES 1
+#define ENCR_KEY_SZ_AES128 0
+#define ENCR_KEY_SZ_AES256 2
+
+#define ENCR_ALG_SHIFT 0
+#define ENCR_ALG_MASK GENMASK(2, 0)
+#define ENCR_ALG_NONE 0
+#define ENCR_ALG_DES 1
+#define ENCR_ALG_AES 2
+#define ENCR_ALG_KASUMI 4
+#define ENCR_ALG_SNOW_3G 5
+#define ENCR_ALG_ZUC 6
+
+/* Register bits - REG_GOPROC */
+#define GO_SHIFT 0
+#define CLR_CNTXT_SHIFT 1
+#define RESULTS_DUMP_SHIFT 2
+
+/* Register bits - REG_ENGINES_AVAIL */
+#define ENCR_AES_SEL_SHIFT 0
+#define DES_SEL_SHIFT 1
+#define ENCR_SNOW3G_SEL_SHIFT 2
+#define ENCR_KASUMI_SEL_SHIFT 3
+#define SHA_SEL_SHIFT 4
+#define SHA512_SEL_SHIFT 5
+#define AUTH_AES_SEL_SHIFT 6
+#define AUTH_SNOW3G_SEL_SHIFT 7
+#define AUTH_KASUMI_SEL_SHIFT 8
+#define BAM_PIPE_SETS_SHIFT 9
+#define BAM_PIPE_SETS_MASK GENMASK(12, 9)
+#define AXI_WR_BEATS_SHIFT 13
+#define AXI_WR_BEATS_MASK GENMASK(18, 13)
+#define AXI_RD_BEATS_SHIFT 19
+#define AXI_RD_BEATS_MASK GENMASK(24, 19)
+#define ENCR_ZUC_SEL_SHIFT 26
+#define AUTH_ZUC_SEL_SHIFT 27
+#define ZUC_ENABLE_SHIFT 28
+
+#endif /* _REGS_V5_H_ */
--- /dev/null
+/*
+ * Copyright (c) 2010-2014, The Linux Foundation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 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.
+ */
+
+#include <linux/device.h>
+#include <linux/interrupt.h>
+#include <crypto/internal/hash.h>
+
+#include "common.h"
+#include "core.h"
+#include "sha.h"
+
+/* crypto hw padding constant for first operation */
+#define SHA_PADDING 64
+#define SHA_PADDING_MASK (SHA_PADDING - 1)
+
+static LIST_HEAD(ahash_algs);
+
+static const __be32 std_iv_sha1[SHA256_DIGEST_SIZE / sizeof(__be32)] = {
+ SHA1_H0, SHA1_H1, SHA1_H2, SHA1_H3, SHA1_H4, 0, 0, 0
+};
+
+static const __be32 std_iv_sha256[SHA256_DIGEST_SIZE / sizeof(__be32)] = {
+ SHA256_H0, SHA256_H1, SHA256_H2, SHA256_H3,
+ SHA256_H4, SHA256_H5, SHA256_H6, SHA256_H7
+};
+
+static void qce_ahash_done(void *data)
+{
+ struct crypto_async_request *async_req = data;
+ struct ahash_request *req = ahash_request_cast(async_req);
+ struct crypto_ahash *ahash = crypto_ahash_reqtfm(req);
+ struct qce_sha_reqctx *rctx = ahash_request_ctx(req);
+ struct qce_alg_template *tmpl = to_ahash_tmpl(async_req->tfm);
+ struct qce_device *qce = tmpl->qce;
+ struct qce_result_dump *result = qce->dma.result_buf;
+ unsigned int digestsize = crypto_ahash_digestsize(ahash);
+ int error;
+ u32 status;
+
+ error = qce_dma_terminate_all(&qce->dma);
+ if (error)
+ dev_dbg(qce->dev, "ahash dma termination error (%d)\n", error);
+
+ qce_unmapsg(qce->dev, req->src, rctx->src_nents, DMA_TO_DEVICE,
+ rctx->src_chained);
+ qce_unmapsg(qce->dev, &rctx->result_sg, 1, DMA_FROM_DEVICE, 0);
+
+ memcpy(rctx->digest, result->auth_iv, digestsize);
+ if (req->result)
+ memcpy(req->result, result->auth_iv, digestsize);
+
+ rctx->byte_count[0] = cpu_to_be32(result->auth_byte_count[0]);
+ rctx->byte_count[1] = cpu_to_be32(result->auth_byte_count[1]);
+
+ error = qce_check_status(qce, &status);
+ if (error < 0)
+ dev_dbg(qce->dev, "ahash operation error (%x)\n", status);
+
+ req->src = rctx->src_orig;
+ req->nbytes = rctx->nbytes_orig;
+ rctx->last_blk = false;
+ rctx->first_blk = false;
+
+ qce->async_req_done(tmpl->qce, error);
+}
+
+static int qce_ahash_async_req_handle(struct crypto_async_request *async_req)
+{
+ struct ahash_request *req = ahash_request_cast(async_req);
+ struct qce_sha_reqctx *rctx = ahash_request_ctx(req);
+ struct qce_sha_ctx *ctx = crypto_tfm_ctx(async_req->tfm);
+ struct qce_alg_template *tmpl = to_ahash_tmpl(async_req->tfm);
+ struct qce_device *qce = tmpl->qce;
+ unsigned long flags = rctx->flags;
+ int ret;
+
+ if (IS_SHA_HMAC(flags)) {
+ rctx->authkey = ctx->authkey;
+ rctx->authklen = QCE_SHA_HMAC_KEY_SIZE;
+ } else if (IS_CMAC(flags)) {
+ rctx->authkey = ctx->authkey;
+ rctx->authklen = AES_KEYSIZE_128;
+ }
+
+ rctx->src_nents = qce_countsg(req->src, req->nbytes,
+ &rctx->src_chained);
+ ret = qce_mapsg(qce->dev, req->src, rctx->src_nents, DMA_TO_DEVICE,
+ rctx->src_chained);
+ if (ret < 0)
+ return ret;
+
+ sg_init_one(&rctx->result_sg, qce->dma.result_buf, QCE_RESULT_BUF_SZ);
+
+ ret = qce_mapsg(qce->dev, &rctx->result_sg, 1, DMA_FROM_DEVICE, 0);
+ if (ret < 0)
+ goto error_unmap_src;
+
+ ret = qce_dma_prep_sgs(&qce->dma, req->src, rctx->src_nents,
+ &rctx->result_sg, 1, qce_ahash_done, async_req);
+ if (ret)
+ goto error_unmap_dst;
+
+ qce_dma_issue_pending(&qce->dma);
+
+ ret = qce_start(async_req, tmpl->crypto_alg_type, 0, 0);
+ if (ret)
+ goto error_terminate;
+
+ return 0;
+
+error_terminate:
+ qce_dma_terminate_all(&qce->dma);
+error_unmap_dst:
+ qce_unmapsg(qce->dev, &rctx->result_sg, 1, DMA_FROM_DEVICE, 0);
+error_unmap_src:
+ qce_unmapsg(qce->dev, req->src, rctx->src_nents, DMA_TO_DEVICE,
+ rctx->src_chained);
+ return ret;
+}
+
+static int qce_ahash_init(struct ahash_request *req)
+{
+ struct qce_sha_reqctx *rctx = ahash_request_ctx(req);
+ struct qce_alg_template *tmpl = to_ahash_tmpl(req->base.tfm);
+ const __be32 *std_iv = tmpl->std_iv;
+
+ memset(rctx, 0, sizeof(*rctx));
+ rctx->first_blk = true;
+ rctx->last_blk = false;
+ rctx->flags = tmpl->alg_flags;
+ memcpy(rctx->digest, std_iv, sizeof(rctx->digest));
+
+ return 0;
+}
+
+static int qce_ahash_export(struct ahash_request *req, void *out)
+{
+ struct crypto_ahash *ahash = crypto_ahash_reqtfm(req);
+ struct qce_sha_reqctx *rctx = ahash_request_ctx(req);
+ unsigned long flags = rctx->flags;
+ unsigned int digestsize = crypto_ahash_digestsize(ahash);
+ unsigned int blocksize =
+ crypto_tfm_alg_blocksize(crypto_ahash_tfm(ahash));
+
+ if (IS_SHA1(flags) || IS_SHA1_HMAC(flags)) {
+ struct sha1_state *out_state = out;
+
+ out_state->count = rctx->count;
+ qce_cpu_to_be32p_array(out_state->state, rctx->digest,
+ digestsize);
+ memcpy(out_state->buffer, rctx->buf, blocksize);
+ } else if (IS_SHA256(flags) || IS_SHA256_HMAC(flags)) {
+ struct sha256_state *out_state = out;
+
+ out_state->count = rctx->count;
+ qce_cpu_to_be32p_array(out_state->state, rctx->digest,
+ digestsize);
+ memcpy(out_state->buf, rctx->buf, blocksize);
+ } else {
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int qce_import_common(struct ahash_request *req, u64 in_count,
+ const u32 *state, const u8 *buffer, bool hmac)
+{
+ struct crypto_ahash *ahash = crypto_ahash_reqtfm(req);
+ struct qce_sha_reqctx *rctx = ahash_request_ctx(req);
+ unsigned int digestsize = crypto_ahash_digestsize(ahash);
+ unsigned int blocksize;
+ u64 count = in_count;
+
+ blocksize = crypto_tfm_alg_blocksize(crypto_ahash_tfm(ahash));
+ rctx->count = in_count;
+ memcpy(rctx->buf, buffer, blocksize);
+
+ if (in_count <= blocksize) {
+ rctx->first_blk = 1;
+ } else {
+ rctx->first_blk = 0;
+ /*
+ * For HMAC, there is a hardware padding done when first block
+ * is set. Therefore the byte_count must be incremened by 64
+ * after the first block operation.
+ */
+ if (hmac)
+ count += SHA_PADDING;
+ }
+
+ rctx->byte_count[0] = (__be32)(count & ~SHA_PADDING_MASK);
+ rctx->byte_count[1] = (__be32)(count >> 32);
+ qce_cpu_to_be32p_array((__be32 *)rctx->digest, (const u8 *)state,
+ digestsize);
+ rctx->buflen = (unsigned int)(in_count & (blocksize - 1));
+
+ return 0;
+}
+
+static int qce_ahash_import(struct ahash_request *req, const void *in)
+{
+ struct qce_sha_reqctx *rctx = ahash_request_ctx(req);
+ unsigned long flags = rctx->flags;
+ bool hmac = IS_SHA_HMAC(flags);
+ int ret = -EINVAL;
+
+ if (IS_SHA1(flags) || IS_SHA1_HMAC(flags)) {
+ const struct sha1_state *state = in;
+
+ ret = qce_import_common(req, state->count, state->state,
+ state->buffer, hmac);
+ } else if (IS_SHA256(flags) || IS_SHA256_HMAC(flags)) {
+ const struct sha256_state *state = in;
+
+ ret = qce_import_common(req, state->count, state->state,
+ state->buf, hmac);
+ }
+
+ return ret;
+}
+
+static int qce_ahash_update(struct ahash_request *req)
+{
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct qce_sha_reqctx *rctx = ahash_request_ctx(req);
+ struct qce_alg_template *tmpl = to_ahash_tmpl(req->base.tfm);
+ struct qce_device *qce = tmpl->qce;
+ struct scatterlist *sg_last, *sg;
+ unsigned int total, len;
+ unsigned int hash_later;
+ unsigned int nbytes;
+ unsigned int blocksize;
+
+ blocksize = crypto_tfm_alg_blocksize(crypto_ahash_tfm(tfm));
+ rctx->count += req->nbytes;
+
+ /* check for buffer from previous updates and append it */
+ total = req->nbytes + rctx->buflen;
+
+ if (total <= blocksize) {
+ scatterwalk_map_and_copy(rctx->buf + rctx->buflen, req->src,
+ 0, req->nbytes, 0);
+ rctx->buflen += req->nbytes;
+ return 0;
+ }
+
+ /* save the original req structure fields */
+ rctx->src_orig = req->src;
+ rctx->nbytes_orig = req->nbytes;
+
+ /*
+ * if we have data from previous update copy them on buffer. The old
+ * data will be combined with current request bytes.
+ */
+ if (rctx->buflen)
+ memcpy(rctx->tmpbuf, rctx->buf, rctx->buflen);
+
+ /* calculate how many bytes will be hashed later */
+ hash_later = total % blocksize;
+ if (hash_later) {
+ unsigned int src_offset = req->nbytes - hash_later;
+ scatterwalk_map_and_copy(rctx->buf, req->src, src_offset,
+ hash_later, 0);
+ }
+
+ /* here nbytes is multiple of blocksize */
+ nbytes = total - hash_later;
+
+ len = rctx->buflen;
+ sg = sg_last = req->src;
+
+ while (len < nbytes && sg) {
+ if (len + sg_dma_len(sg) > nbytes)
+ break;
+ len += sg_dma_len(sg);
+ sg_last = sg;
+ sg = scatterwalk_sg_next(sg);
+ }
+
+ if (!sg_last)
+ return -EINVAL;
+
+ sg_mark_end(sg_last);
+
+ if (rctx->buflen) {
+ sg_init_table(rctx->sg, 2);
+ sg_set_buf(rctx->sg, rctx->tmpbuf, rctx->buflen);
+ scatterwalk_sg_chain(rctx->sg, 2, req->src);
+ req->src = rctx->sg;
+ }
+
+ req->nbytes = nbytes;
+ rctx->buflen = hash_later;
+
+ return qce->async_req_enqueue(tmpl->qce, &req->base);
+}
+
+static int qce_ahash_final(struct ahash_request *req)
+{
+ struct qce_sha_reqctx *rctx = ahash_request_ctx(req);
+ struct qce_alg_template *tmpl = to_ahash_tmpl(req->base.tfm);
+ struct qce_device *qce = tmpl->qce;
+
+ if (!rctx->buflen)
+ return 0;
+
+ rctx->last_blk = true;
+
+ rctx->src_orig = req->src;
+ rctx->nbytes_orig = req->nbytes;
+
+ memcpy(rctx->tmpbuf, rctx->buf, rctx->buflen);
+ sg_init_one(rctx->sg, rctx->tmpbuf, rctx->buflen);
+
+ req->src = rctx->sg;
+ req->nbytes = rctx->buflen;
+
+ return qce->async_req_enqueue(tmpl->qce, &req->base);
+}
+
+static int qce_ahash_digest(struct ahash_request *req)
+{
+ struct qce_sha_reqctx *rctx = ahash_request_ctx(req);
+ struct qce_alg_template *tmpl = to_ahash_tmpl(req->base.tfm);
+ struct qce_device *qce = tmpl->qce;
+ int ret;
+
+ ret = qce_ahash_init(req);
+ if (ret)
+ return ret;
+
+ rctx->src_orig = req->src;
+ rctx->nbytes_orig = req->nbytes;
+ rctx->first_blk = true;
+ rctx->last_blk = true;
+
+ return qce->async_req_enqueue(tmpl->qce, &req->base);
+}
+
+struct qce_ahash_result {
+ struct completion completion;
+ int error;
+};
+
+static void qce_digest_complete(struct crypto_async_request *req, int error)
+{
+ struct qce_ahash_result *result = req->data;
+
+ if (error == -EINPROGRESS)
+ return;
+
+ result->error = error;
+ complete(&result->completion);
+}
+
+static int qce_ahash_hmac_setkey(struct crypto_ahash *tfm, const u8 *key,
+ unsigned int keylen)
+{
+ unsigned int digestsize = crypto_ahash_digestsize(tfm);
+ struct qce_sha_ctx *ctx = crypto_tfm_ctx(&tfm->base);
+ struct qce_ahash_result result;
+ struct ahash_request *req;
+ struct scatterlist sg;
+ unsigned int blocksize;
+ struct crypto_ahash *ahash_tfm;
+ u8 *buf;
+ int ret;
+ const char *alg_name;
+
+ blocksize = crypto_tfm_alg_blocksize(crypto_ahash_tfm(tfm));
+ memset(ctx->authkey, 0, sizeof(ctx->authkey));
+
+ if (keylen <= blocksize) {
+ memcpy(ctx->authkey, key, keylen);
+ return 0;
+ }
+
+ if (digestsize == SHA1_DIGEST_SIZE)
+ alg_name = "sha1-qce";
+ else if (digestsize == SHA256_DIGEST_SIZE)
+ alg_name = "sha256-qce";
+ else
+ return -EINVAL;
+
+ ahash_tfm = crypto_alloc_ahash(alg_name, CRYPTO_ALG_TYPE_AHASH,
+ CRYPTO_ALG_TYPE_AHASH_MASK);
+ if (IS_ERR(ahash_tfm))
+ return PTR_ERR(ahash_tfm);
+
+ req = ahash_request_alloc(ahash_tfm, GFP_KERNEL);
+ if (!req) {
+ ret = -ENOMEM;
+ goto err_free_ahash;
+ }
+
+ init_completion(&result.completion);
+ ahash_request_set_callback(req, CRYPTO_TFM_REQ_MAY_BACKLOG,
+ qce_digest_complete, &result);
+ crypto_ahash_clear_flags(ahash_tfm, ~0);
+
+ buf = kzalloc(keylen + QCE_MAX_ALIGN_SIZE, GFP_KERNEL);
+ if (!buf) {
+ ret = -ENOMEM;
+ goto err_free_req;
+ }
+
+ memcpy(buf, key, keylen);
+ sg_init_one(&sg, buf, keylen);
+ ahash_request_set_crypt(req, &sg, ctx->authkey, keylen);
+
+ ret = crypto_ahash_digest(req);
+ if (ret == -EINPROGRESS || ret == -EBUSY) {
+ ret = wait_for_completion_interruptible(&result.completion);
+ if (!ret)
+ ret = result.error;
+ }
+
+ if (ret)
+ crypto_ahash_set_flags(tfm, CRYPTO_TFM_RES_BAD_KEY_LEN);
+
+ kfree(buf);
+err_free_req:
+ ahash_request_free(req);
+err_free_ahash:
+ crypto_free_ahash(ahash_tfm);
+ return ret;
+}
+
+static int qce_ahash_cra_init(struct crypto_tfm *tfm)
+{
+ struct crypto_ahash *ahash = __crypto_ahash_cast(tfm);
+ struct qce_sha_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ crypto_ahash_set_reqsize(ahash, sizeof(struct qce_sha_reqctx));
+ memset(ctx, 0, sizeof(*ctx));
+ return 0;
+}
+
+struct qce_ahash_def {
+ unsigned long flags;
+ const char *name;
+ const char *drv_name;
+ unsigned int digestsize;
+ unsigned int blocksize;
+ unsigned int statesize;
+ const __be32 *std_iv;
+};
+
+static const struct qce_ahash_def ahash_def[] = {
+ {
+ .flags = QCE_HASH_SHA1,
+ .name = "sha1",
+ .drv_name = "sha1-qce",
+ .digestsize = SHA1_DIGEST_SIZE,
+ .blocksize = SHA1_BLOCK_SIZE,
+ .statesize = sizeof(struct sha1_state),
+ .std_iv = std_iv_sha1,
+ },
+ {
+ .flags = QCE_HASH_SHA256,
+ .name = "sha256",
+ .drv_name = "sha256-qce",
+ .digestsize = SHA256_DIGEST_SIZE,
+ .blocksize = SHA256_BLOCK_SIZE,
+ .statesize = sizeof(struct sha256_state),
+ .std_iv = std_iv_sha256,
+ },
+ {
+ .flags = QCE_HASH_SHA1_HMAC,
+ .name = "hmac(sha1)",
+ .drv_name = "hmac-sha1-qce",
+ .digestsize = SHA1_DIGEST_SIZE,
+ .blocksize = SHA1_BLOCK_SIZE,
+ .statesize = sizeof(struct sha1_state),
+ .std_iv = std_iv_sha1,
+ },
+ {
+ .flags = QCE_HASH_SHA256_HMAC,
+ .name = "hmac(sha256)",
+ .drv_name = "hmac-sha256-qce",
+ .digestsize = SHA256_DIGEST_SIZE,
+ .blocksize = SHA256_BLOCK_SIZE,
+ .statesize = sizeof(struct sha256_state),
+ .std_iv = std_iv_sha256,
+ },
+};
+
+static int qce_ahash_register_one(const struct qce_ahash_def *def,
+ struct qce_device *qce)
+{
+ struct qce_alg_template *tmpl;
+ struct ahash_alg *alg;
+ struct crypto_alg *base;
+ int ret;
+
+ tmpl = kzalloc(sizeof(*tmpl), GFP_KERNEL);
+ if (!tmpl)
+ return -ENOMEM;
+
+ tmpl->std_iv = def->std_iv;
+
+ alg = &tmpl->alg.ahash;
+ alg->init = qce_ahash_init;
+ alg->update = qce_ahash_update;
+ alg->final = qce_ahash_final;
+ alg->digest = qce_ahash_digest;
+ alg->export = qce_ahash_export;
+ alg->import = qce_ahash_import;
+ if (IS_SHA_HMAC(def->flags))
+ alg->setkey = qce_ahash_hmac_setkey;
+ alg->halg.digestsize = def->digestsize;
+ alg->halg.statesize = def->statesize;
+
+ base = &alg->halg.base;
+ base->cra_blocksize = def->blocksize;
+ base->cra_priority = 300;
+ base->cra_flags = CRYPTO_ALG_ASYNC;
+ base->cra_ctxsize = sizeof(struct qce_sha_ctx);
+ base->cra_alignmask = 0;
+ base->cra_module = THIS_MODULE;
+ base->cra_init = qce_ahash_cra_init;
+ INIT_LIST_HEAD(&base->cra_list);
+
+ snprintf(base->cra_name, CRYPTO_MAX_ALG_NAME, "%s", def->name);
+ snprintf(base->cra_driver_name, CRYPTO_MAX_ALG_NAME, "%s",
+ def->drv_name);
+
+ INIT_LIST_HEAD(&tmpl->entry);
+ tmpl->crypto_alg_type = CRYPTO_ALG_TYPE_AHASH;
+ tmpl->alg_flags = def->flags;
+ tmpl->qce = qce;
+
+ ret = crypto_register_ahash(alg);
+ if (ret) {
+ kfree(tmpl);
+ dev_err(qce->dev, "%s registration failed\n", base->cra_name);
+ return ret;
+ }
+
+ list_add_tail(&tmpl->entry, &ahash_algs);
+ dev_dbg(qce->dev, "%s is registered\n", base->cra_name);
+ return 0;
+}
+
+static void qce_ahash_unregister(struct qce_device *qce)
+{
+ struct qce_alg_template *tmpl, *n;
+
+ list_for_each_entry_safe(tmpl, n, &ahash_algs, entry) {
+ crypto_unregister_ahash(&tmpl->alg.ahash);
+ list_del(&tmpl->entry);
+ kfree(tmpl);
+ }
+}
+
+static int qce_ahash_register(struct qce_device *qce)
+{
+ int ret, i;
+
+ for (i = 0; i < ARRAY_SIZE(ahash_def); i++) {
+ ret = qce_ahash_register_one(&ahash_def[i], qce);
+ if (ret)
+ goto err;
+ }
+
+ return 0;
+err:
+ qce_ahash_unregister(qce);
+ return ret;
+}
+
+const struct qce_algo_ops ahash_ops = {
+ .type = CRYPTO_ALG_TYPE_AHASH,
+ .register_algs = qce_ahash_register,
+ .unregister_algs = qce_ahash_unregister,
+ .async_req_handle = qce_ahash_async_req_handle,
+};
--- /dev/null
+/*
+ * Copyright (c) 2010-2014, The Linux Foundation. All rights reserved.
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 and
+ * only version 2 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.
+ */
+
+#ifndef _SHA_H_
+#define _SHA_H_
+
+#include <crypto/scatterwalk.h>
+#include <crypto/sha.h>
+
+#include "common.h"
+#include "core.h"
+
+#define QCE_SHA_MAX_BLOCKSIZE SHA256_BLOCK_SIZE
+#define QCE_SHA_MAX_DIGESTSIZE SHA256_DIGEST_SIZE
+
+struct qce_sha_ctx {
+ u8 authkey[QCE_SHA_MAX_BLOCKSIZE];
+};
+
+/**
+ * struct qce_sha_reqctx - holds private ahash objects per request
+ * @buf: used during update, import and export
+ * @tmpbuf: buffer for internal use
+ * @digest: calculated digest buffer
+ * @buflen: length of the buffer
+ * @flags: operation flags
+ * @src_orig: original request sg list
+ * @nbytes_orig: original request number of bytes
+ * @src_chained: is source scatterlist chained
+ * @src_nents: source number of entries
+ * @byte_count: byte count
+ * @count: save count in states during update, import and export
+ * @first_blk: is it the first block
+ * @last_blk: is it the last block
+ * @sg: used to chain sg lists
+ * @authkey: pointer to auth key in sha ctx
+ * @authklen: auth key length
+ * @result_sg: scatterlist used for result buffer
+ */
+struct qce_sha_reqctx {
+ u8 buf[QCE_SHA_MAX_BLOCKSIZE];
+ u8 tmpbuf[QCE_SHA_MAX_BLOCKSIZE];
+ u8 digest[QCE_SHA_MAX_DIGESTSIZE];
+ unsigned int buflen;
+ unsigned long flags;
+ struct scatterlist *src_orig;
+ unsigned int nbytes_orig;
+ bool src_chained;
+ int src_nents;
+ __be32 byte_count[2];
+ u64 count;
+ bool first_blk;
+ bool last_blk;
+ struct scatterlist sg[2];
+ u8 *authkey;
+ unsigned int authklen;
+ struct scatterlist result_sg;
+};
+
+static inline struct qce_alg_template *to_ahash_tmpl(struct crypto_tfm *tfm)
+{
+ struct crypto_ahash *ahash = __crypto_ahash_cast(tfm);
+ struct ahash_alg *alg = container_of(crypto_hash_alg_common(ahash),
+ struct ahash_alg, halg);
+
+ return container_of(alg, struct qce_alg_template, alg.ahash);
+}
+
+extern const struct qce_algo_ops ahash_ops;
+
+#endif /* _SHA_H_ */
projects / platform / kernel / linux-rpi.git / commitdiff