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Message-Id: <1492693983-8175-3-git-send-email-gilad@benyossef.com>
Date: Thu, 20 Apr 2017 16:12:56 +0300
From: Gilad Ben-Yossef <gilad@...yossef.com>
To: Herbert Xu <herbert@...dor.apana.org.au>,
"David S. Miller" <davem@...emloft.net>,
Rob Herring <robh+dt@...nel.org>,
Mark Rutland <mark.rutland@....com>,
Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
devel@...verdev.osuosl.org
Cc: linux-crypto@...r.kernel.org, devicetree@...r.kernel.org,
linux-kernel@...r.kernel.org, gilad.benyossef@....com,
Binoy Jayan <binoy.jayan@...aro.org>,
Ofir Drang <ofir.drang@....com>,
Stuart Yoder <stuart.yoder@....com>
Subject: [PATCH v2 2/9] staging: ccree: add ahash support
Add CryptoCell async. hash and HMAC support.
Signed-off-by: Gilad Ben-Yossef <gilad@...yossef.com>
---
drivers/staging/ccree/Kconfig | 6 +
drivers/staging/ccree/Makefile | 2 +-
drivers/staging/ccree/cc_crypto_ctx.h | 22 +
drivers/staging/ccree/hash_defs.h | 78 +
drivers/staging/ccree/ssi_buffer_mgr.c | 311 +++-
drivers/staging/ccree/ssi_buffer_mgr.h | 6 +
drivers/staging/ccree/ssi_driver.c | 11 +-
drivers/staging/ccree/ssi_driver.h | 4 +-
drivers/staging/ccree/ssi_hash.c | 2732 ++++++++++++++++++++++++++++++++
drivers/staging/ccree/ssi_hash.h | 101 ++
drivers/staging/ccree/ssi_pm.c | 4 +
11 files changed, 3263 insertions(+), 14 deletions(-)
create mode 100644 drivers/staging/ccree/hash_defs.h
create mode 100644 drivers/staging/ccree/ssi_hash.c
create mode 100644 drivers/staging/ccree/ssi_hash.h
diff --git a/drivers/staging/ccree/Kconfig b/drivers/staging/ccree/Kconfig
index 0f723d7..a528a99 100644
--- a/drivers/staging/ccree/Kconfig
+++ b/drivers/staging/ccree/Kconfig
@@ -2,6 +2,12 @@ config CRYPTO_DEV_CCREE
tristate "Support for ARM TrustZone CryptoCell C7XX family of Crypto accelerators"
depends on CRYPTO_HW && OF && HAS_DMA
default n
+ select CRYPTO_HASH
+ select CRYPTO_SHA1
+ select CRYPTO_MD5
+ select CRYPTO_SHA256
+ select CRYPTO_SHA512
+ select CRYPTO_HMAC
help
Say 'Y' to enable a driver for the Arm TrustZone CryptoCell
C7xx. Currently only the CryptoCell 712 REE is supported.
diff --git a/drivers/staging/ccree/Makefile b/drivers/staging/ccree/Makefile
index 972af69..f94e225 100644
--- a/drivers/staging/ccree/Makefile
+++ b/drivers/staging/ccree/Makefile
@@ -1,2 +1,2 @@
obj-$(CONFIG_CRYPTO_DEV_CCREE) := ccree.o
-ccree-y := ssi_driver.o ssi_sysfs.o ssi_buffer_mgr.o ssi_request_mgr.o ssi_sram_mgr.o ssi_pm.o ssi_pm_ext.o
+ccree-y := ssi_driver.o ssi_sysfs.o ssi_buffer_mgr.o ssi_request_mgr.o ssi_hash.o ssi_sram_mgr.o ssi_pm.o ssi_pm_ext.o
diff --git a/drivers/staging/ccree/cc_crypto_ctx.h b/drivers/staging/ccree/cc_crypto_ctx.h
index 8b8aea2..fedf259 100644
--- a/drivers/staging/ccree/cc_crypto_ctx.h
+++ b/drivers/staging/ccree/cc_crypto_ctx.h
@@ -220,6 +220,28 @@ struct drv_ctx_generic {
} __attribute__((__may_alias__));
+struct drv_ctx_hash {
+ enum drv_crypto_alg alg; /* DRV_CRYPTO_ALG_HASH */
+ enum drv_hash_mode mode;
+ uint8_t digest[CC_DIGEST_SIZE_MAX];
+ /* reserve to end of allocated context size */
+ uint8_t reserved[CC_CTX_SIZE - 2 * sizeof(uint32_t) -
+ CC_DIGEST_SIZE_MAX];
+};
+
+/* !!!! drv_ctx_hmac should have the same structure as drv_ctx_hash except
+ k0, k0_size fields */
+struct drv_ctx_hmac {
+ enum drv_crypto_alg alg; /* DRV_CRYPTO_ALG_HMAC */
+ enum drv_hash_mode mode;
+ uint8_t digest[CC_DIGEST_SIZE_MAX];
+ uint32_t k0[CC_HMAC_BLOCK_SIZE_MAX/sizeof(uint32_t)];
+ uint32_t k0_size;
+ /* reserve to end of allocated context size */
+ uint8_t reserved[CC_CTX_SIZE - 3 * sizeof(uint32_t) -
+ CC_DIGEST_SIZE_MAX - CC_HMAC_BLOCK_SIZE_MAX];
+};
+
/*******************************************************************/
/***************** MESSAGE BASED CONTEXTS **************************/
/*******************************************************************/
diff --git a/drivers/staging/ccree/hash_defs.h b/drivers/staging/ccree/hash_defs.h
new file mode 100644
index 0000000..0cd6909
--- /dev/null
+++ b/drivers/staging/ccree/hash_defs.h
@@ -0,0 +1,78 @@
+/*
+ * Copyright (C) 2012-2016 ARM Limited or its affiliates.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#ifndef _HASH_DEFS_H__
+#define _HASH_DEFS_H__
+
+#include "cc_crypto_ctx.h"
+
+/* this files provides definitions required for hash engine drivers */
+#ifndef CC_CONFIG_HASH_SHA_512_SUPPORTED
+#define SEP_HASH_LENGTH_WORDS 2
+#else
+#define SEP_HASH_LENGTH_WORDS 4
+#endif
+
+#ifdef BIG__ENDIAN
+#define OPAD_CURRENT_LENGTH 0x40000000, 0x00000000 , 0x00000000, 0x00000000
+#define HASH_LARVAL_MD5 0x76543210, 0xFEDCBA98, 0x89ABCDEF, 0x01234567
+#define HASH_LARVAL_SHA1 0xF0E1D2C3, 0x76543210, 0xFEDCBA98, 0x89ABCDEF, 0x01234567
+#define HASH_LARVAL_SHA224 0XA44FFABE, 0XA78FF964, 0X11155868, 0X310BC0FF, 0X39590EF7, 0X17DD7030, 0X07D57C36, 0XD89E05C1
+#define HASH_LARVAL_SHA256 0X19CDE05B, 0XABD9831F, 0X8C68059B, 0X7F520E51, 0X3AF54FA5, 0X72F36E3C, 0X85AE67BB, 0X67E6096A
+#define HASH_LARVAL_SHA384 0X1D48B547, 0XA44FFABE, 0X0D2E0CDB, 0XA78FF964, 0X874AB48E, 0X11155868, 0X67263367, 0X310BC0FF, 0XD8EC2F15, 0X39590EF7, 0X5A015991, 0X17DD7030, 0X2A299A62, 0X07D57C36, 0X5D9DBBCB, 0XD89E05C1
+#define HASH_LARVAL_SHA512 0X19CDE05B, 0X79217E13, 0XABD9831F, 0X6BBD41FB, 0X8C68059B, 0X1F6C3E2B, 0X7F520E51, 0XD182E6AD, 0X3AF54FA5, 0XF1361D5F, 0X72F36E3C, 0X2BF894FE, 0X85AE67BB, 0X3BA7CA84, 0X67E6096A, 0X08C9BCF3
+#else
+#define OPAD_CURRENT_LENGTH 0x00000040, 0x00000000, 0x00000000, 0x00000000
+#define HASH_LARVAL_MD5 0x10325476, 0x98BADCFE, 0xEFCDAB89, 0x67452301
+#define HASH_LARVAL_SHA1 0xC3D2E1F0, 0x10325476, 0x98BADCFE, 0xEFCDAB89, 0x67452301
+#define HASH_LARVAL_SHA224 0xbefa4fa4, 0x64f98fa7, 0x68581511, 0xffc00b31, 0xf70e5939, 0x3070dd17, 0x367cd507, 0xc1059ed8
+#define HASH_LARVAL_SHA256 0x5be0cd19, 0x1f83d9ab, 0x9b05688c, 0x510e527f, 0xa54ff53a, 0x3c6ef372, 0xbb67ae85, 0x6a09e667
+#define HASH_LARVAL_SHA384 0X47B5481D, 0XBEFA4FA4, 0XDB0C2E0D, 0X64F98FA7, 0X8EB44A87, 0X68581511, 0X67332667, 0XFFC00B31, 0X152FECD8, 0XF70E5939, 0X9159015A, 0X3070DD17, 0X629A292A, 0X367CD507, 0XCBBB9D5D, 0XC1059ED8
+#define HASH_LARVAL_SHA512 0x5be0cd19, 0x137e2179, 0x1f83d9ab, 0xfb41bd6b, 0x9b05688c, 0x2b3e6c1f, 0x510e527f, 0xade682d1, 0xa54ff53a, 0x5f1d36f1, 0x3c6ef372, 0xfe94f82b, 0xbb67ae85, 0x84caa73b, 0x6a09e667, 0xf3bcc908
+#endif
+
+enum HashConfig1Padding {
+ HASH_PADDING_DISABLED = 0,
+ HASH_PADDING_ENABLED = 1,
+ HASH_DIGEST_RESULT_LITTLE_ENDIAN = 2,
+ HASH_CONFIG1_PADDING_RESERVE32 = INT32_MAX,
+};
+
+enum HashCipherDoPadding {
+ DO_NOT_PAD = 0,
+ DO_PAD = 1,
+ HASH_CIPHER_DO_PADDING_RESERVE32 = INT32_MAX,
+};
+
+typedef struct SepHashPrivateContext {
+ /* The current length is placed at the end of the context buffer because the hash
+ context is used for all HMAC operations as well. HMAC context includes a 64 bytes
+ K0 field. The size of struct drv_ctx_hash reserved field is 88/184 bytes depend if t
+ he SHA512 is supported ( in this case teh context size is 256 bytes).
+ The size of struct drv_ctx_hash reseved field is 20 or 52 depend if the SHA512 is supported.
+ This means that this structure size (without the reserved field can be up to 20 bytes ,
+ in case sha512 is not suppported it is 20 bytes (SEP_HASH_LENGTH_WORDS define to 2 ) and in the other
+ case it is 28 (SEP_HASH_LENGTH_WORDS define to 4) */
+ uint32_t reserved[(sizeof(struct drv_ctx_hash)/sizeof(uint32_t)) - SEP_HASH_LENGTH_WORDS - 3];
+ uint32_t CurrentDigestedLength[SEP_HASH_LENGTH_WORDS];
+ uint32_t KeyType;
+ uint32_t dataCompleted;
+ uint32_t hmacFinalization;
+ /* no space left */
+} SepHashPrivateContext_s;
+
+#endif /*_HASH_DEFS_H__*/
+
diff --git a/drivers/staging/ccree/ssi_buffer_mgr.c b/drivers/staging/ccree/ssi_buffer_mgr.c
index aca837d..5144eaa 100644
--- a/drivers/staging/ccree/ssi_buffer_mgr.c
+++ b/drivers/staging/ccree/ssi_buffer_mgr.c
@@ -17,6 +17,7 @@
#include <linux/crypto.h>
#include <linux/version.h>
#include <crypto/algapi.h>
+#include <crypto/hash.h>
#include <crypto/authenc.h>
#include <crypto/scatterwalk.h>
#include <linux/dmapool.h>
@@ -27,6 +28,7 @@
#include "ssi_buffer_mgr.h"
#include "cc_lli_defs.h"
+#include "ssi_hash.h"
#define LLI_MAX_NUM_OF_DATA_ENTRIES 128
#define LLI_MAX_NUM_OF_ASSOC_DATA_ENTRIES 4
@@ -281,11 +283,6 @@ static inline int ssi_buffer_mgr_render_scatterlist_to_mlli(
return 0;
}
-static int ssi_buffer_mgr_generate_mlli (
- struct device *dev,
- struct buffer_array *sg_data,
- struct mlli_params *mlli_params) __maybe_unused;
-
static int ssi_buffer_mgr_generate_mlli(
struct device *dev,
struct buffer_array *sg_data,
@@ -427,11 +424,6 @@ ssi_buffer_mgr_dma_map_sg(struct device *dev, struct scatterlist *sg, uint32_t n
return 0;
}
-static int ssi_buffer_mgr_map_scatterlist (struct device *dev,
- struct scatterlist *sg, unsigned int nbytes, int direction,
- uint32_t *nents, uint32_t max_sg_nents, uint32_t *lbytes,
- uint32_t *mapped_nents) __maybe_unused;
-
static int ssi_buffer_mgr_map_scatterlist(
struct device *dev, struct scatterlist *sg,
unsigned int nbytes, int direction,
@@ -493,6 +485,305 @@ static int ssi_buffer_mgr_map_scatterlist(
return 0;
}
+static inline int ssi_ahash_handle_curr_buf(struct device *dev,
+ struct ahash_req_ctx *areq_ctx,
+ uint8_t* curr_buff,
+ uint32_t curr_buff_cnt,
+ struct buffer_array *sg_data)
+{
+ SSI_LOG_DEBUG(" handle curr buff %x set to DLLI \n", curr_buff_cnt);
+ /* create sg for the current buffer */
+ sg_init_one(areq_ctx->buff_sg,curr_buff, curr_buff_cnt);
+ if (unlikely(dma_map_sg(dev, areq_ctx->buff_sg, 1,
+ DMA_TO_DEVICE) != 1)) {
+ SSI_LOG_ERR("dma_map_sg() "
+ "src buffer failed\n");
+ return -ENOMEM;
+ }
+ SSI_LOG_DEBUG("Mapped curr_buff: dma_address=0x%llX "
+ "page_link=0x%08lX addr=%pK "
+ "offset=%u length=%u\n",
+ (unsigned long long)sg_dma_address(areq_ctx->buff_sg),
+ areq_ctx->buff_sg->page_link,
+ sg_virt(areq_ctx->buff_sg),
+ areq_ctx->buff_sg->offset,
+ areq_ctx->buff_sg->length);
+ areq_ctx->data_dma_buf_type = SSI_DMA_BUF_DLLI;
+ areq_ctx->curr_sg = areq_ctx->buff_sg;
+ areq_ctx->in_nents = 0;
+ /* prepare for case of MLLI */
+ ssi_buffer_mgr_add_scatterlist_entry(sg_data, 1, areq_ctx->buff_sg,
+ curr_buff_cnt, 0, false, NULL);
+ return 0;
+}
+
+int ssi_buffer_mgr_map_hash_request_final(
+ struct ssi_drvdata *drvdata, void *ctx, struct scatterlist *src, unsigned int nbytes, bool do_update)
+{
+ struct ahash_req_ctx *areq_ctx = (struct ahash_req_ctx *)ctx;
+ struct device *dev = &drvdata->plat_dev->dev;
+ uint8_t* curr_buff = areq_ctx->buff_index ? areq_ctx->buff1 :
+ areq_ctx->buff0;
+ uint32_t *curr_buff_cnt = areq_ctx->buff_index ? &areq_ctx->buff1_cnt :
+ &areq_ctx->buff0_cnt;
+ struct mlli_params *mlli_params = &areq_ctx->mlli_params;
+ struct buffer_array sg_data;
+ struct buff_mgr_handle *buff_mgr = drvdata->buff_mgr_handle;
+ uint32_t dummy = 0;
+ uint32_t mapped_nents = 0;
+
+ SSI_LOG_DEBUG(" final params : curr_buff=%pK "
+ "curr_buff_cnt=0x%X nbytes = 0x%X "
+ "src=%pK curr_index=%u\n",
+ curr_buff, *curr_buff_cnt, nbytes,
+ src, areq_ctx->buff_index);
+ /* Init the type of the dma buffer */
+ areq_ctx->data_dma_buf_type = SSI_DMA_BUF_NULL;
+ mlli_params->curr_pool = NULL;
+ sg_data.num_of_buffers = 0;
+ areq_ctx->in_nents = 0;
+
+ if (unlikely(nbytes == 0 && *curr_buff_cnt == 0)) {
+ /* nothing to do */
+ return 0;
+ }
+
+ /*TODO: copy data in case that buffer is enough for operation */
+ /* map the previous buffer */
+ if (*curr_buff_cnt != 0 ) {
+ if (ssi_ahash_handle_curr_buf(dev, areq_ctx, curr_buff,
+ *curr_buff_cnt, &sg_data) != 0) {
+ return -ENOMEM;
+ }
+ }
+
+ if (src && (nbytes > 0) && do_update) {
+ if ( unlikely( ssi_buffer_mgr_map_scatterlist( dev,src,
+ nbytes,
+ DMA_TO_DEVICE,
+ &areq_ctx->in_nents,
+ LLI_MAX_NUM_OF_DATA_ENTRIES,
+ &dummy, &mapped_nents))){
+ goto unmap_curr_buff;
+ }
+ if ( src && (mapped_nents == 1)
+ && (areq_ctx->data_dma_buf_type == SSI_DMA_BUF_NULL) ) {
+ memcpy(areq_ctx->buff_sg,src,
+ sizeof(struct scatterlist));
+ areq_ctx->buff_sg->length = nbytes;
+ areq_ctx->curr_sg = areq_ctx->buff_sg;
+ areq_ctx->data_dma_buf_type = SSI_DMA_BUF_DLLI;
+ } else {
+ areq_ctx->data_dma_buf_type = SSI_DMA_BUF_MLLI;
+ }
+
+ }
+
+ /*build mlli */
+ if (unlikely(areq_ctx->data_dma_buf_type == SSI_DMA_BUF_MLLI)) {
+ mlli_params->curr_pool = buff_mgr->mlli_buffs_pool;
+ /* add the src data to the sg_data */
+ ssi_buffer_mgr_add_scatterlist_entry(&sg_data,
+ areq_ctx->in_nents,
+ src,
+ nbytes, 0,
+ true, &areq_ctx->mlli_nents);
+ if (unlikely(ssi_buffer_mgr_generate_mlli(dev, &sg_data,
+ mlli_params) != 0)) {
+ goto fail_unmap_din;
+ }
+ }
+ /* change the buffer index for the unmap function */
+ areq_ctx->buff_index = (areq_ctx->buff_index^1);
+ SSI_LOG_DEBUG("areq_ctx->data_dma_buf_type = %s\n",
+ GET_DMA_BUFFER_TYPE(areq_ctx->data_dma_buf_type));
+ return 0;
+
+fail_unmap_din:
+ dma_unmap_sg(dev, src, areq_ctx->in_nents, DMA_TO_DEVICE);
+
+unmap_curr_buff:
+ if (*curr_buff_cnt != 0 ) {
+ dma_unmap_sg(dev, areq_ctx->buff_sg, 1, DMA_TO_DEVICE);
+ }
+ return -ENOMEM;
+}
+
+int ssi_buffer_mgr_map_hash_request_update(
+ struct ssi_drvdata *drvdata, void *ctx, struct scatterlist *src, unsigned int nbytes, unsigned int block_size)
+{
+ struct ahash_req_ctx *areq_ctx = (struct ahash_req_ctx *)ctx;
+ struct device *dev = &drvdata->plat_dev->dev;
+ uint8_t* curr_buff = areq_ctx->buff_index ? areq_ctx->buff1 :
+ areq_ctx->buff0;
+ uint32_t *curr_buff_cnt = areq_ctx->buff_index ? &areq_ctx->buff1_cnt :
+ &areq_ctx->buff0_cnt;
+ uint8_t* next_buff = areq_ctx->buff_index ? areq_ctx->buff0 :
+ areq_ctx->buff1;
+ uint32_t *next_buff_cnt = areq_ctx->buff_index ? &areq_ctx->buff0_cnt :
+ &areq_ctx->buff1_cnt;
+ struct mlli_params *mlli_params = &areq_ctx->mlli_params;
+ unsigned int update_data_len;
+ uint32_t total_in_len = nbytes + *curr_buff_cnt;
+ struct buffer_array sg_data;
+ struct buff_mgr_handle *buff_mgr = drvdata->buff_mgr_handle;
+ unsigned int swap_index = 0;
+ uint32_t dummy = 0;
+ uint32_t mapped_nents = 0;
+
+ SSI_LOG_DEBUG(" update params : curr_buff=%pK "
+ "curr_buff_cnt=0x%X nbytes=0x%X "
+ "src=%pK curr_index=%u \n",
+ curr_buff, *curr_buff_cnt, nbytes,
+ src, areq_ctx->buff_index);
+ /* Init the type of the dma buffer */
+ areq_ctx->data_dma_buf_type = SSI_DMA_BUF_NULL;
+ mlli_params->curr_pool = NULL;
+ areq_ctx->curr_sg = NULL;
+ sg_data.num_of_buffers = 0;
+ areq_ctx->in_nents = 0;
+
+ if (unlikely(total_in_len < block_size)) {
+ SSI_LOG_DEBUG(" less than one block: curr_buff=%pK "
+ "*curr_buff_cnt=0x%X copy_to=%pK\n",
+ curr_buff, *curr_buff_cnt,
+ &curr_buff[*curr_buff_cnt]);
+ areq_ctx->in_nents =
+ ssi_buffer_mgr_get_sgl_nents(src,
+ nbytes,
+ &dummy, NULL);
+ sg_copy_to_buffer(src, areq_ctx->in_nents,
+ &curr_buff[*curr_buff_cnt], nbytes);
+ *curr_buff_cnt += nbytes;
+ return 1;
+ }
+
+ /* Calculate the residue size*/
+ *next_buff_cnt = total_in_len & (block_size - 1);
+ /* update data len */
+ update_data_len = total_in_len - *next_buff_cnt;
+
+ SSI_LOG_DEBUG(" temp length : *next_buff_cnt=0x%X "
+ "update_data_len=0x%X\n",
+ *next_buff_cnt, update_data_len);
+
+ /* Copy the new residue to next buffer */
+ if (*next_buff_cnt != 0) {
+ SSI_LOG_DEBUG(" handle residue: next buff %pK skip data %u"
+ " residue %u \n", next_buff,
+ (update_data_len - *curr_buff_cnt),
+ *next_buff_cnt);
+ ssi_buffer_mgr_copy_scatterlist_portion(next_buff, src,
+ (update_data_len -*curr_buff_cnt),
+ nbytes,SSI_SG_TO_BUF);
+ /* change the buffer index for next operation */
+ swap_index = 1;
+ }
+
+ if (*curr_buff_cnt != 0) {
+ if (ssi_ahash_handle_curr_buf(dev, areq_ctx, curr_buff,
+ *curr_buff_cnt, &sg_data) != 0) {
+ return -ENOMEM;
+ }
+ /* change the buffer index for next operation */
+ swap_index = 1;
+ }
+
+ if ( update_data_len > *curr_buff_cnt ) {
+ if ( unlikely( ssi_buffer_mgr_map_scatterlist( dev,src,
+ (update_data_len -*curr_buff_cnt),
+ DMA_TO_DEVICE,
+ &areq_ctx->in_nents,
+ LLI_MAX_NUM_OF_DATA_ENTRIES,
+ &dummy, &mapped_nents))){
+ goto unmap_curr_buff;
+ }
+ if ( (mapped_nents == 1)
+ && (areq_ctx->data_dma_buf_type == SSI_DMA_BUF_NULL) ) {
+ /* only one entry in the SG and no previous data */
+ memcpy(areq_ctx->buff_sg,src,
+ sizeof(struct scatterlist));
+ areq_ctx->buff_sg->length = update_data_len;
+ areq_ctx->data_dma_buf_type = SSI_DMA_BUF_DLLI;
+ areq_ctx->curr_sg = areq_ctx->buff_sg;
+ } else {
+ areq_ctx->data_dma_buf_type = SSI_DMA_BUF_MLLI;
+ }
+ }
+
+ if (unlikely(areq_ctx->data_dma_buf_type == SSI_DMA_BUF_MLLI)) {
+ mlli_params->curr_pool = buff_mgr->mlli_buffs_pool;
+ /* add the src data to the sg_data */
+ ssi_buffer_mgr_add_scatterlist_entry(&sg_data,
+ areq_ctx->in_nents,
+ src,
+ (update_data_len - *curr_buff_cnt), 0,
+ true, &areq_ctx->mlli_nents);
+ if (unlikely(ssi_buffer_mgr_generate_mlli(dev, &sg_data,
+ mlli_params) != 0)) {
+ goto fail_unmap_din;
+ }
+
+ }
+ areq_ctx->buff_index = (areq_ctx->buff_index^swap_index);
+
+ return 0;
+
+fail_unmap_din:
+ dma_unmap_sg(dev, src, areq_ctx->in_nents, DMA_TO_DEVICE);
+
+unmap_curr_buff:
+ if (*curr_buff_cnt != 0 ) {
+ dma_unmap_sg(dev, areq_ctx->buff_sg, 1, DMA_TO_DEVICE);
+ }
+ return -ENOMEM;
+}
+
+void ssi_buffer_mgr_unmap_hash_request(
+ struct device *dev, void *ctx, struct scatterlist *src, bool do_revert)
+{
+ struct ahash_req_ctx *areq_ctx = (struct ahash_req_ctx *)ctx;
+ uint32_t *prev_len = areq_ctx->buff_index ? &areq_ctx->buff0_cnt :
+ &areq_ctx->buff1_cnt;
+
+ /*In case a pool was set, a table was
+ allocated and should be released */
+ if (areq_ctx->mlli_params.curr_pool != NULL) {
+ SSI_LOG_DEBUG("free MLLI buffer: dma=0x%llX virt=%pK\n",
+ (unsigned long long)areq_ctx->mlli_params.mlli_dma_addr,
+ areq_ctx->mlli_params.mlli_virt_addr);
+ SSI_RESTORE_DMA_ADDR_TO_48BIT(areq_ctx->mlli_params.mlli_dma_addr);
+ dma_pool_free(areq_ctx->mlli_params.curr_pool,
+ areq_ctx->mlli_params.mlli_virt_addr,
+ areq_ctx->mlli_params.mlli_dma_addr);
+ }
+
+ if ((src) && likely(areq_ctx->in_nents != 0)) {
+ SSI_LOG_DEBUG("Unmapped sg src: virt=%pK dma=0x%llX len=0x%X\n",
+ sg_virt(src),
+ (unsigned long long)sg_dma_address(src),
+ sg_dma_len(src));
+ SSI_RESTORE_DMA_ADDR_TO_48BIT(sg_dma_address(src));
+ dma_unmap_sg(dev, src,
+ areq_ctx->in_nents, DMA_TO_DEVICE);
+ }
+
+ if (*prev_len != 0) {
+ SSI_LOG_DEBUG("Unmapped buffer: areq_ctx->buff_sg=%pK"
+ "dma=0x%llX len 0x%X\n",
+ sg_virt(areq_ctx->buff_sg),
+ (unsigned long long)sg_dma_address(areq_ctx->buff_sg),
+ sg_dma_len(areq_ctx->buff_sg));
+ dma_unmap_sg(dev, areq_ctx->buff_sg, 1, DMA_TO_DEVICE);
+ if (!do_revert) {
+ /* clean the previous data length for update operation */
+ *prev_len = 0;
+ } else {
+ areq_ctx->buff_index ^= 1;
+ }
+ }
+}
+
int ssi_buffer_mgr_init(struct ssi_drvdata *drvdata)
{
struct buff_mgr_handle *buff_mgr_handle;
diff --git a/drivers/staging/ccree/ssi_buffer_mgr.h b/drivers/staging/ccree/ssi_buffer_mgr.h
index 9b74d81..ccac5ce 100644
--- a/drivers/staging/ccree/ssi_buffer_mgr.h
+++ b/drivers/staging/ccree/ssi_buffer_mgr.h
@@ -55,6 +55,12 @@ int ssi_buffer_mgr_init(struct ssi_drvdata *drvdata);
int ssi_buffer_mgr_fini(struct ssi_drvdata *drvdata);
+int ssi_buffer_mgr_map_hash_request_final(struct ssi_drvdata *drvdata, void *ctx, struct scatterlist *src, unsigned int nbytes, bool do_update);
+
+int ssi_buffer_mgr_map_hash_request_update(struct ssi_drvdata *drvdata, void *ctx, struct scatterlist *src, unsigned int nbytes, unsigned int block_size);
+
+void ssi_buffer_mgr_unmap_hash_request(struct device *dev, void *ctx, struct scatterlist *src, bool do_revert);
+
void ssi_buffer_mgr_copy_scatterlist_portion(u8 *dest, struct scatterlist *sg, uint32_t to_skip, uint32_t end, enum ssi_sg_cpy_direct direct);
void ssi_buffer_mgr_zero_sgl(struct scatterlist *sgl, uint32_t data_len);
diff --git a/drivers/staging/ccree/ssi_driver.c b/drivers/staging/ccree/ssi_driver.c
index e70ad07..95e27c2 100644
--- a/drivers/staging/ccree/ssi_driver.c
+++ b/drivers/staging/ccree/ssi_driver.c
@@ -61,6 +61,7 @@
#include "ssi_request_mgr.h"
#include "ssi_buffer_mgr.h"
#include "ssi_sysfs.h"
+#include "ssi_hash.h"
#include "ssi_sram_mgr.h"
#include "ssi_pm.h"
@@ -218,8 +219,6 @@ static int init_cc_resources(struct platform_device *plat_dev)
goto init_cc_res_err;
}
- new_drvdata->inflight_counter = 0;
-
dev_set_drvdata(&plat_dev->dev, new_drvdata);
/* Get device resources */
/* First CC registers space */
@@ -344,12 +343,19 @@ static int init_cc_resources(struct platform_device *plat_dev)
goto init_cc_res_err;
}
+ rc = ssi_hash_alloc(new_drvdata);
+ if (unlikely(rc != 0)) {
+ SSI_LOG_ERR("ssi_hash_alloc failed\n");
+ goto init_cc_res_err;
+ }
+
return 0;
init_cc_res_err:
SSI_LOG_ERR("Freeing CC HW resources!\n");
if (new_drvdata != NULL) {
+ ssi_hash_free(new_drvdata);
ssi_power_mgr_fini(new_drvdata);
ssi_buffer_mgr_fini(new_drvdata);
request_mgr_fini(new_drvdata);
@@ -389,6 +395,7 @@ static void cleanup_cc_resources(struct platform_device *plat_dev)
struct ssi_drvdata *drvdata =
(struct ssi_drvdata *)dev_get_drvdata(&plat_dev->dev);
+ ssi_hash_free(drvdata);
ssi_power_mgr_fini(drvdata);
ssi_buffer_mgr_fini(drvdata);
request_mgr_fini(drvdata);
diff --git a/drivers/staging/ccree/ssi_driver.h b/drivers/staging/ccree/ssi_driver.h
index c4ccbfa..9aa5d30 100644
--- a/drivers/staging/ccree/ssi_driver.h
+++ b/drivers/staging/ccree/ssi_driver.h
@@ -32,6 +32,7 @@
#include <crypto/aes.h>
#include <crypto/sha.h>
#include <crypto/authenc.h>
+#include <crypto/hash.h>
#include <linux/version.h>
#ifndef INT32_MAX /* Missing in Linux kernel */
@@ -50,6 +51,7 @@
#define CC_SUPPORT_SHA DX_DEV_SHA_MAX
#include "cc_crypto_ctx.h"
#include "ssi_sysfs.h"
+#include "hash_defs.h"
#define DRV_MODULE_VERSION "3.0"
@@ -138,13 +140,13 @@ struct ssi_drvdata {
ssi_sram_addr_t mlli_sram_addr;
struct completion icache_setup_completion;
void *buff_mgr_handle;
+ void *hash_handle;
void *request_mgr_handle;
void *sram_mgr_handle;
#ifdef ENABLE_CYCLE_COUNT
cycles_t isr_exit_cycles; /* Save for isr-to-tasklet latency */
#endif
- uint32_t inflight_counter;
};
diff --git a/drivers/staging/ccree/ssi_hash.c b/drivers/staging/ccree/ssi_hash.c
new file mode 100644
index 0000000..cb7fde7
--- /dev/null
+++ b/drivers/staging/ccree/ssi_hash.c
@@ -0,0 +1,2732 @@
+/*
+ * Copyright (C) 2012-2016 ARM Limited or its affiliates.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/platform_device.h>
+#include <crypto/algapi.h>
+#include <crypto/hash.h>
+#include <crypto/sha.h>
+#include <crypto/md5.h>
+#include <crypto/internal/hash.h>
+
+#include "ssi_config.h"
+#include "ssi_driver.h"
+#include "ssi_request_mgr.h"
+#include "ssi_buffer_mgr.h"
+#include "ssi_sysfs.h"
+#include "ssi_hash.h"
+#include "ssi_sram_mgr.h"
+
+#define SSI_MAX_AHASH_SEQ_LEN 12
+#define SSI_MAX_HASH_OPAD_TMP_KEYS_SIZE MAX(SSI_MAX_HASH_BLCK_SIZE, 3 * AES_BLOCK_SIZE)
+
+struct ssi_hash_handle {
+ ssi_sram_addr_t digest_len_sram_addr; /* const value in SRAM*/
+ ssi_sram_addr_t larval_digest_sram_addr; /* const value in SRAM */
+ struct list_head hash_list;
+ struct completion init_comp;
+};
+
+static const uint32_t digest_len_init[] = {
+ 0x00000040, 0x00000000, 0x00000000, 0x00000000 };
+static const uint32_t md5_init[] = {
+ SHA1_H3, SHA1_H2, SHA1_H1, SHA1_H0 };
+static const uint32_t sha1_init[] = {
+ SHA1_H4, SHA1_H3, SHA1_H2, SHA1_H1, SHA1_H0 };
+static const uint32_t sha224_init[] = {
+ SHA224_H7, SHA224_H6, SHA224_H5, SHA224_H4,
+ SHA224_H3, SHA224_H2, SHA224_H1, SHA224_H0 };
+static const uint32_t sha256_init[] = {
+ SHA256_H7, SHA256_H6, SHA256_H5, SHA256_H4,
+ SHA256_H3, SHA256_H2, SHA256_H1, SHA256_H0 };
+#if (DX_DEV_SHA_MAX > 256)
+static const uint32_t digest_len_sha512_init[] = {
+ 0x00000080, 0x00000000, 0x00000000, 0x00000000 };
+static const uint64_t sha384_init[] = {
+ SHA384_H7, SHA384_H6, SHA384_H5, SHA384_H4,
+ SHA384_H3, SHA384_H2, SHA384_H1, SHA384_H0 };
+static const uint64_t sha512_init[] = {
+ SHA512_H7, SHA512_H6, SHA512_H5, SHA512_H4,
+ SHA512_H3, SHA512_H2, SHA512_H1, SHA512_H0 };
+#endif
+
+static void ssi_hash_create_xcbc_setup(
+ struct ahash_request *areq,
+ HwDesc_s desc[],
+ unsigned int *seq_size);
+
+static void ssi_hash_create_cmac_setup(struct ahash_request *areq,
+ HwDesc_s desc[],
+ unsigned int *seq_size);
+
+struct ssi_hash_alg {
+ struct list_head entry;
+ bool synchronize;
+ int hash_mode;
+ int hw_mode;
+ int inter_digestsize;
+ struct ssi_drvdata *drvdata;
+ union {
+ struct ahash_alg ahash_alg;
+ struct shash_alg shash_alg;
+ };
+};
+
+
+struct hash_key_req_ctx {
+ uint32_t keylen;
+ dma_addr_t key_dma_addr;
+};
+
+/* hash per-session context */
+struct ssi_hash_ctx {
+ struct ssi_drvdata *drvdata;
+ /* holds the origin digest; the digest after "setkey" if HMAC,*
+ the initial digest if HASH. */
+ uint8_t digest_buff[SSI_MAX_HASH_DIGEST_SIZE] ____cacheline_aligned;
+ uint8_t opad_tmp_keys_buff[SSI_MAX_HASH_OPAD_TMP_KEYS_SIZE] ____cacheline_aligned;
+ dma_addr_t opad_tmp_keys_dma_addr ____cacheline_aligned;
+ dma_addr_t digest_buff_dma_addr;
+ /* use for hmac with key large then mode block size */
+ struct hash_key_req_ctx key_params;
+ int hash_mode;
+ int hw_mode;
+ int inter_digestsize;
+ struct completion setkey_comp;
+ bool is_hmac;
+};
+
+static const struct crypto_type crypto_shash_type;
+
+static void ssi_hash_create_data_desc(
+ struct ahash_req_ctx *areq_ctx,
+ struct ssi_hash_ctx *ctx,
+ unsigned int flow_mode,HwDesc_s desc[],
+ bool is_not_last_data,
+ unsigned int *seq_size);
+
+static inline void ssi_set_hash_endianity(uint32_t mode, HwDesc_s *desc)
+{
+ if (unlikely((mode == DRV_HASH_MD5) ||
+ (mode == DRV_HASH_SHA384) ||
+ (mode == DRV_HASH_SHA512))) {
+ HW_DESC_SET_BYTES_SWAP(desc, 1);
+ } else {
+ HW_DESC_SET_CIPHER_CONFIG0(desc, HASH_DIGEST_RESULT_LITTLE_ENDIAN);
+ }
+}
+
+static int ssi_hash_map_result(struct device *dev,
+ struct ahash_req_ctx *state,
+ unsigned int digestsize)
+{
+ state->digest_result_dma_addr =
+ dma_map_single(dev, (void *)state->digest_result_buff,
+ digestsize,
+ DMA_BIDIRECTIONAL);
+ if (unlikely(dma_mapping_error(dev, state->digest_result_dma_addr))) {
+ SSI_LOG_ERR("Mapping digest result buffer %u B for DMA failed\n",
+ digestsize);
+ return -ENOMEM;
+ }
+ SSI_UPDATE_DMA_ADDR_TO_48BIT(state->digest_result_dma_addr,
+ digestsize);
+ SSI_LOG_DEBUG("Mapped digest result buffer %u B "
+ "at va=%pK to dma=0x%llX\n",
+ digestsize, state->digest_result_buff,
+ (unsigned long long)state->digest_result_dma_addr);
+
+ return 0;
+}
+
+static int ssi_hash_map_request(struct device *dev,
+ struct ahash_req_ctx *state,
+ struct ssi_hash_ctx *ctx)
+{
+ bool is_hmac = ctx->is_hmac;
+ ssi_sram_addr_t larval_digest_addr = ssi_ahash_get_larval_digest_sram_addr(
+ ctx->drvdata, ctx->hash_mode);
+ struct ssi_crypto_req ssi_req = {};
+ HwDesc_s desc;
+ int rc = -ENOMEM;
+
+ state->buff0 = kzalloc(SSI_MAX_HASH_BLCK_SIZE ,GFP_KERNEL|GFP_DMA);
+ if (!state->buff0) {
+ SSI_LOG_ERR("Allocating buff0 in context failed\n");
+ goto fail0;
+ }
+ state->buff1 = kzalloc(SSI_MAX_HASH_BLCK_SIZE ,GFP_KERNEL|GFP_DMA);
+ if (!state->buff1) {
+ SSI_LOG_ERR("Allocating buff1 in context failed\n");
+ goto fail_buff0;
+ }
+ state->digest_result_buff = kzalloc(SSI_MAX_HASH_DIGEST_SIZE ,GFP_KERNEL|GFP_DMA);
+ if (!state->digest_result_buff) {
+ SSI_LOG_ERR("Allocating digest_result_buff in context failed\n");
+ goto fail_buff1;
+ }
+ state->digest_buff = kzalloc(ctx->inter_digestsize, GFP_KERNEL|GFP_DMA);
+ if (!state->digest_buff) {
+ SSI_LOG_ERR("Allocating digest-buffer in context failed\n");
+ goto fail_digest_result_buff;
+ }
+
+ SSI_LOG_DEBUG("Allocated digest-buffer in context ctx->digest_buff=@%p\n", state->digest_buff);
+ if (ctx->hw_mode != DRV_CIPHER_XCBC_MAC) {
+ state->digest_bytes_len = kzalloc(HASH_LEN_SIZE, GFP_KERNEL|GFP_DMA);
+ if (!state->digest_bytes_len) {
+ SSI_LOG_ERR("Allocating digest-bytes-len in context failed\n");
+ goto fail1;
+ }
+ SSI_LOG_DEBUG("Allocated digest-bytes-len in context state->>digest_bytes_len=@%p\n", state->digest_bytes_len);
+ } else {
+ state->digest_bytes_len = NULL;
+ }
+
+ state->opad_digest_buff = kzalloc(ctx->inter_digestsize, GFP_KERNEL|GFP_DMA);
+ if (!state->opad_digest_buff) {
+ SSI_LOG_ERR("Allocating opad-digest-buffer in context failed\n");
+ goto fail2;
+ }
+ SSI_LOG_DEBUG("Allocated opad-digest-buffer in context state->digest_bytes_len=@%p\n", state->opad_digest_buff);
+
+ state->digest_buff_dma_addr = dma_map_single(dev, (void *)state->digest_buff, ctx->inter_digestsize, DMA_BIDIRECTIONAL);
+ if (dma_mapping_error(dev, state->digest_buff_dma_addr)) {
+ SSI_LOG_ERR("Mapping digest len %d B at va=%pK for DMA failed\n",
+ ctx->inter_digestsize, state->digest_buff);
+ goto fail3;
+ }
+ SSI_UPDATE_DMA_ADDR_TO_48BIT(state->digest_buff_dma_addr,
+ ctx->inter_digestsize);
+ SSI_LOG_DEBUG("Mapped digest %d B at va=%pK to dma=0x%llX\n",
+ ctx->inter_digestsize, state->digest_buff,
+ (unsigned long long)state->digest_buff_dma_addr);
+
+ if (is_hmac) {
+ SSI_RESTORE_DMA_ADDR_TO_48BIT(ctx->digest_buff_dma_addr);
+ dma_sync_single_for_cpu(dev, ctx->digest_buff_dma_addr, ctx->inter_digestsize, DMA_BIDIRECTIONAL);
+ SSI_UPDATE_DMA_ADDR_TO_48BIT(ctx->digest_buff_dma_addr,
+ ctx->inter_digestsize);
+ if ((ctx->hw_mode == DRV_CIPHER_XCBC_MAC) || (ctx->hw_mode == DRV_CIPHER_CMAC)) {
+ memset(state->digest_buff, 0, ctx->inter_digestsize);
+ } else { /*sha*/
+ memcpy(state->digest_buff, ctx->digest_buff, ctx->inter_digestsize);
+#if (DX_DEV_SHA_MAX > 256)
+ if (unlikely((ctx->hash_mode == DRV_HASH_SHA512) || (ctx->hash_mode == DRV_HASH_SHA384))) {
+ memcpy(state->digest_bytes_len, digest_len_sha512_init, HASH_LEN_SIZE);
+ } else {
+ memcpy(state->digest_bytes_len, digest_len_init, HASH_LEN_SIZE);
+ }
+#else
+ memcpy(state->digest_bytes_len, digest_len_init, HASH_LEN_SIZE);
+#endif
+ }
+ SSI_RESTORE_DMA_ADDR_TO_48BIT(state->digest_buff_dma_addr);
+ dma_sync_single_for_device(dev, state->digest_buff_dma_addr, ctx->inter_digestsize, DMA_BIDIRECTIONAL);
+ SSI_UPDATE_DMA_ADDR_TO_48BIT(state->digest_buff_dma_addr,
+ ctx->inter_digestsize);
+
+ if (ctx->hash_mode != DRV_HASH_NULL) {
+ SSI_RESTORE_DMA_ADDR_TO_48BIT(ctx->opad_tmp_keys_dma_addr);
+ dma_sync_single_for_cpu(dev, ctx->opad_tmp_keys_dma_addr, ctx->inter_digestsize, DMA_BIDIRECTIONAL);
+ memcpy(state->opad_digest_buff, ctx->opad_tmp_keys_buff, ctx->inter_digestsize);
+ SSI_UPDATE_DMA_ADDR_TO_48BIT(ctx->opad_tmp_keys_dma_addr,
+ ctx->inter_digestsize);
+ }
+ } else { /*hash*/
+ /* Copy the initial digests if hash flow. The SRAM contains the
+ initial digests in the expected order for all SHA* */
+ HW_DESC_INIT(&desc);
+ HW_DESC_SET_DIN_SRAM(&desc, larval_digest_addr, ctx->inter_digestsize);
+ HW_DESC_SET_DOUT_DLLI(&desc, state->digest_buff_dma_addr, ctx->inter_digestsize, NS_BIT, 0);
+ HW_DESC_SET_FLOW_MODE(&desc, BYPASS);
+
+ rc = send_request(ctx->drvdata, &ssi_req, &desc, 1, 0);
+ if (unlikely(rc != 0)) {
+ SSI_LOG_ERR("send_request() failed (rc=%d)\n", rc);
+ goto fail4;
+ }
+ }
+
+ if (ctx->hw_mode != DRV_CIPHER_XCBC_MAC) {
+ state->digest_bytes_len_dma_addr = dma_map_single(dev, (void *)state->digest_bytes_len, HASH_LEN_SIZE, DMA_BIDIRECTIONAL);
+ if (dma_mapping_error(dev, state->digest_bytes_len_dma_addr)) {
+ SSI_LOG_ERR("Mapping digest len %u B at va=%pK for DMA failed\n",
+ HASH_LEN_SIZE, state->digest_bytes_len);
+ goto fail4;
+ }
+ SSI_UPDATE_DMA_ADDR_TO_48BIT(state->digest_bytes_len_dma_addr,
+ HASH_LEN_SIZE);
+ SSI_LOG_DEBUG("Mapped digest len %u B at va=%pK to dma=0x%llX\n",
+ HASH_LEN_SIZE, state->digest_bytes_len,
+ (unsigned long long)state->digest_bytes_len_dma_addr);
+ } else {
+ state->digest_bytes_len_dma_addr = 0;
+ }
+
+ if (is_hmac && ctx->hash_mode != DRV_HASH_NULL) {
+ state->opad_digest_dma_addr = dma_map_single(dev, (void *)state->opad_digest_buff, ctx->inter_digestsize, DMA_BIDIRECTIONAL);
+ if (dma_mapping_error(dev, state->opad_digest_dma_addr)) {
+ SSI_LOG_ERR("Mapping opad digest %d B at va=%pK for DMA failed\n",
+ ctx->inter_digestsize, state->opad_digest_buff);
+ goto fail5;
+ }
+ SSI_UPDATE_DMA_ADDR_TO_48BIT(state->opad_digest_dma_addr,
+ ctx->inter_digestsize);
+ SSI_LOG_DEBUG("Mapped opad digest %d B at va=%pK to dma=0x%llX\n",
+ ctx->inter_digestsize, state->opad_digest_buff,
+ (unsigned long long)state->opad_digest_dma_addr);
+ } else {
+ state->opad_digest_dma_addr = 0;
+ }
+ state->buff0_cnt = 0;
+ state->buff1_cnt = 0;
+ state->buff_index = 0;
+ state->mlli_params.curr_pool = NULL;
+
+ return 0;
+
+fail5:
+ if (state->digest_bytes_len_dma_addr != 0) {
+ SSI_RESTORE_DMA_ADDR_TO_48BIT(state->digest_bytes_len_dma_addr);
+ dma_unmap_single(dev, state->digest_bytes_len_dma_addr, HASH_LEN_SIZE, DMA_BIDIRECTIONAL);
+ state->digest_bytes_len_dma_addr = 0;
+ }
+fail4:
+ if (state->digest_buff_dma_addr != 0) {
+ SSI_RESTORE_DMA_ADDR_TO_48BIT(state->digest_buff_dma_addr);
+ dma_unmap_single(dev, state->digest_buff_dma_addr, ctx->inter_digestsize, DMA_BIDIRECTIONAL);
+ state->digest_buff_dma_addr = 0;
+ }
+fail3:
+ if (state->opad_digest_buff != NULL)
+ kfree(state->opad_digest_buff);
+fail2:
+ if (state->digest_bytes_len != NULL)
+ kfree(state->digest_bytes_len);
+fail1:
+ if (state->digest_buff != NULL)
+ kfree(state->digest_buff);
+fail_digest_result_buff:
+ if (state->digest_result_buff != NULL) {
+ kfree(state->digest_result_buff);
+ state->digest_result_buff = NULL;
+ }
+fail_buff1:
+ if (state->buff1 != NULL) {
+ kfree(state->buff1);
+ state->buff1 = NULL;
+ }
+fail_buff0:
+ if (state->buff0 != NULL) {
+ kfree(state->buff0);
+ state->buff0 = NULL;
+ }
+fail0:
+ return rc;
+}
+
+static void ssi_hash_unmap_request(struct device *dev,
+ struct ahash_req_ctx *state,
+ struct ssi_hash_ctx *ctx)
+{
+ if (state->digest_buff_dma_addr != 0) {
+ SSI_RESTORE_DMA_ADDR_TO_48BIT(state->digest_buff_dma_addr);
+ dma_unmap_single(dev, state->digest_buff_dma_addr,
+ ctx->inter_digestsize, DMA_BIDIRECTIONAL);
+ SSI_LOG_DEBUG("Unmapped digest-buffer: digest_buff_dma_addr=0x%llX\n",
+ (unsigned long long)state->digest_buff_dma_addr);
+ state->digest_buff_dma_addr = 0;
+ }
+ if (state->digest_bytes_len_dma_addr != 0) {
+ SSI_RESTORE_DMA_ADDR_TO_48BIT(state->digest_bytes_len_dma_addr);
+ dma_unmap_single(dev, state->digest_bytes_len_dma_addr,
+ HASH_LEN_SIZE, DMA_BIDIRECTIONAL);
+ SSI_LOG_DEBUG("Unmapped digest-bytes-len buffer: digest_bytes_len_dma_addr=0x%llX\n",
+ (unsigned long long)state->digest_bytes_len_dma_addr);
+ state->digest_bytes_len_dma_addr = 0;
+ }
+ if (state->opad_digest_dma_addr != 0) {
+ SSI_RESTORE_DMA_ADDR_TO_48BIT(state->opad_digest_dma_addr);
+ dma_unmap_single(dev, state->opad_digest_dma_addr,
+ ctx->inter_digestsize, DMA_BIDIRECTIONAL);
+ SSI_LOG_DEBUG("Unmapped opad-digest: opad_digest_dma_addr=0x%llX\n",
+ (unsigned long long)state->opad_digest_dma_addr);
+ state->opad_digest_dma_addr = 0;
+ }
+
+ if (state->opad_digest_buff != NULL)
+ kfree(state->opad_digest_buff);
+ if (state->digest_bytes_len != NULL)
+ kfree(state->digest_bytes_len);
+ if (state->digest_buff != NULL)
+ kfree(state->digest_buff);
+ if (state->digest_result_buff != NULL)
+ kfree(state->digest_result_buff);
+ if (state->buff1 != NULL)
+ kfree(state->buff1);
+ if (state->buff0 != NULL)
+ kfree(state->buff0);
+}
+
+static void ssi_hash_unmap_result(struct device *dev,
+ struct ahash_req_ctx *state,
+ unsigned int digestsize, u8 *result)
+{
+ if (state->digest_result_dma_addr != 0) {
+ SSI_RESTORE_DMA_ADDR_TO_48BIT(state->digest_result_dma_addr);
+ dma_unmap_single(dev,
+ state->digest_result_dma_addr,
+ digestsize,
+ DMA_BIDIRECTIONAL);
+ SSI_LOG_DEBUG("unmpa digest result buffer "
+ "va (%pK) pa (%llx) len %u\n",
+ state->digest_result_buff,
+ (unsigned long long)state->digest_result_dma_addr,
+ digestsize);
+ memcpy(result,
+ state->digest_result_buff,
+ digestsize);
+ }
+ state->digest_result_dma_addr = 0;
+}
+
+static void ssi_hash_update_complete(struct device *dev, void *ssi_req, void __iomem *cc_base)
+{
+ struct ahash_request *req = (struct ahash_request *)ssi_req;
+ struct ahash_req_ctx *state = ahash_request_ctx(req);
+
+ SSI_LOG_DEBUG("req=%pK\n", req);
+
+ ssi_buffer_mgr_unmap_hash_request(dev, state, req->src, false);
+ req->base.complete(&req->base, 0);
+}
+
+static void ssi_hash_digest_complete(struct device *dev, void *ssi_req, void __iomem *cc_base)
+{
+ struct ahash_request *req = (struct ahash_request *)ssi_req;
+ struct ahash_req_ctx *state = ahash_request_ctx(req);
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct ssi_hash_ctx *ctx = crypto_ahash_ctx(tfm);
+ uint32_t digestsize = crypto_ahash_digestsize(tfm);
+
+ SSI_LOG_DEBUG("req=%pK\n", req);
+
+ ssi_buffer_mgr_unmap_hash_request(dev, state, req->src, false);
+ ssi_hash_unmap_result(dev, state, digestsize, req->result);
+ ssi_hash_unmap_request(dev, state, ctx);
+ req->base.complete(&req->base, 0);
+}
+
+static void ssi_hash_complete(struct device *dev, void *ssi_req, void __iomem *cc_base)
+{
+ struct ahash_request *req = (struct ahash_request *)ssi_req;
+ struct ahash_req_ctx *state = ahash_request_ctx(req);
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct ssi_hash_ctx *ctx = crypto_ahash_ctx(tfm);
+ uint32_t digestsize = crypto_ahash_digestsize(tfm);
+
+ SSI_LOG_DEBUG("req=%pK\n", req);
+
+ ssi_buffer_mgr_unmap_hash_request(dev, state, req->src, false);
+ ssi_hash_unmap_result(dev, state, digestsize, req->result);
+ ssi_hash_unmap_request(dev, state, ctx);
+ req->base.complete(&req->base, 0);
+}
+
+static int ssi_hash_digest(struct ahash_req_ctx *state,
+ struct ssi_hash_ctx *ctx,
+ unsigned int digestsize,
+ struct scatterlist *src,
+ unsigned int nbytes, u8 *result,
+ void *async_req)
+{
+ struct device *dev = &ctx->drvdata->plat_dev->dev;
+ bool is_hmac = ctx->is_hmac;
+ struct ssi_crypto_req ssi_req = {};
+ HwDesc_s desc[SSI_MAX_AHASH_SEQ_LEN];
+ ssi_sram_addr_t larval_digest_addr = ssi_ahash_get_larval_digest_sram_addr(
+ ctx->drvdata, ctx->hash_mode);
+ int idx = 0;
+ int rc = 0;
+
+
+ SSI_LOG_DEBUG("===== %s-digest (%d) ====\n", is_hmac?"hmac":"hash", nbytes);
+
+ if (unlikely(ssi_hash_map_request(dev, state, ctx) != 0)) {
+ SSI_LOG_ERR("map_ahash_source() failed\n");
+ return -ENOMEM;
+ }
+
+ if (unlikely(ssi_hash_map_result(dev, state, digestsize) != 0)) {
+ SSI_LOG_ERR("map_ahash_digest() failed\n");
+ return -ENOMEM;
+ }
+
+ if (unlikely(ssi_buffer_mgr_map_hash_request_final(ctx->drvdata, state, src, nbytes, 1) != 0)) {
+ SSI_LOG_ERR("map_ahash_request_final() failed\n");
+ return -ENOMEM;
+ }
+
+ if (async_req) {
+ /* Setup DX request structure */
+ ssi_req.user_cb = (void *)ssi_hash_digest_complete;
+ ssi_req.user_arg = (void *)async_req;
+#ifdef ENABLE_CYCLE_COUNT
+ ssi_req.op_type = STAT_OP_TYPE_ENCODE; /* Use "Encode" stats */
+#endif
+ }
+
+ /* If HMAC then load hash IPAD xor key, if HASH then load initial digest */
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_CIPHER_MODE(&desc[idx], ctx->hw_mode);
+ if (is_hmac) {
+ HW_DESC_SET_DIN_TYPE(&desc[idx], DMA_DLLI, state->digest_buff_dma_addr, ctx->inter_digestsize, NS_BIT);
+ } else {
+ HW_DESC_SET_DIN_SRAM(&desc[idx], larval_digest_addr, ctx->inter_digestsize);
+ }
+ HW_DESC_SET_FLOW_MODE(&desc[idx], S_DIN_to_HASH);
+ HW_DESC_SET_SETUP_MODE(&desc[idx], SETUP_LOAD_STATE0);
+ idx++;
+
+ /* Load the hash current length */
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_CIPHER_MODE(&desc[idx], ctx->hw_mode);
+
+ if (is_hmac) {
+ HW_DESC_SET_DIN_TYPE(&desc[idx], DMA_DLLI, state->digest_bytes_len_dma_addr, HASH_LEN_SIZE, NS_BIT);
+ } else {
+ HW_DESC_SET_DIN_CONST(&desc[idx], 0, HASH_LEN_SIZE);
+ if (likely(nbytes != 0)) {
+ HW_DESC_SET_CIPHER_CONFIG1(&desc[idx], HASH_PADDING_ENABLED);
+ } else {
+ HW_DESC_SET_CIPHER_DO(&desc[idx], DO_PAD);
+ }
+ }
+ HW_DESC_SET_FLOW_MODE(&desc[idx], S_DIN_to_HASH);
+ HW_DESC_SET_SETUP_MODE(&desc[idx], SETUP_LOAD_KEY0);
+ idx++;
+
+ ssi_hash_create_data_desc(state, ctx, DIN_HASH, desc, false, &idx);
+
+ if (is_hmac) {
+ /* HW last hash block padding (aka. "DO_PAD") */
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_CIPHER_MODE(&desc[idx], ctx->hw_mode);
+ HW_DESC_SET_DOUT_DLLI(&desc[idx], state->digest_buff_dma_addr, HASH_LEN_SIZE, NS_BIT, 0);
+ HW_DESC_SET_FLOW_MODE(&desc[idx], S_HASH_to_DOUT);
+ HW_DESC_SET_SETUP_MODE(&desc[idx], SETUP_WRITE_STATE1);
+ HW_DESC_SET_CIPHER_DO(&desc[idx], DO_PAD);
+ idx++;
+
+ /* store the hash digest result in the context */
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_CIPHER_MODE(&desc[idx], ctx->hw_mode);
+ HW_DESC_SET_DOUT_DLLI(&desc[idx], state->digest_buff_dma_addr, digestsize, NS_BIT, 0);
+ HW_DESC_SET_FLOW_MODE(&desc[idx], S_HASH_to_DOUT);
+ ssi_set_hash_endianity(ctx->hash_mode, &desc[idx]);
+ HW_DESC_SET_SETUP_MODE(&desc[idx], SETUP_WRITE_STATE0);
+ idx++;
+
+ /* Loading hash opad xor key state */
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_CIPHER_MODE(&desc[idx], ctx->hw_mode);
+ HW_DESC_SET_DIN_TYPE(&desc[idx], DMA_DLLI, state->opad_digest_dma_addr, ctx->inter_digestsize, NS_BIT);
+ HW_DESC_SET_FLOW_MODE(&desc[idx], S_DIN_to_HASH);
+ HW_DESC_SET_SETUP_MODE(&desc[idx], SETUP_LOAD_STATE0);
+ idx++;
+
+ /* Load the hash current length */
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_CIPHER_MODE(&desc[idx], ctx->hw_mode);
+ HW_DESC_SET_DIN_SRAM(&desc[idx], ssi_ahash_get_initial_digest_len_sram_addr(ctx->drvdata, ctx->hash_mode), HASH_LEN_SIZE);
+ HW_DESC_SET_CIPHER_CONFIG1(&desc[idx], HASH_PADDING_ENABLED);
+ HW_DESC_SET_FLOW_MODE(&desc[idx], S_DIN_to_HASH);
+ HW_DESC_SET_SETUP_MODE(&desc[idx], SETUP_LOAD_KEY0);
+ idx++;
+
+ /* Memory Barrier: wait for IPAD/OPAD axi write to complete */
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_DIN_NO_DMA(&desc[idx], 0, 0xfffff0);
+ HW_DESC_SET_DOUT_NO_DMA(&desc[idx], 0, 0, 1);
+ idx++;
+
+ /* Perform HASH update */
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_DIN_TYPE(&desc[idx], DMA_DLLI, state->digest_buff_dma_addr, digestsize, NS_BIT);
+ HW_DESC_SET_FLOW_MODE(&desc[idx], DIN_HASH);
+ idx++;
+ }
+
+ /* Get final MAC result */
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_CIPHER_MODE(&desc[idx], ctx->hw_mode);
+ HW_DESC_SET_DOUT_DLLI(&desc[idx], state->digest_result_dma_addr, digestsize, NS_BIT, async_req? 1:0); /*TODO*/
+ if (async_req) {
+ HW_DESC_SET_QUEUE_LAST_IND(&desc[idx]);
+ }
+ HW_DESC_SET_FLOW_MODE(&desc[idx], S_HASH_to_DOUT);
+ HW_DESC_SET_SETUP_MODE(&desc[idx], SETUP_WRITE_STATE0);
+ HW_DESC_SET_CIPHER_CONFIG1(&desc[idx], HASH_PADDING_DISABLED);
+ ssi_set_hash_endianity(ctx->hash_mode, &desc[idx]);
+ idx++;
+
+ if (async_req) {
+ rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 1);
+ if (unlikely(rc != -EINPROGRESS)) {
+ SSI_LOG_ERR("send_request() failed (rc=%d)\n", rc);
+ ssi_buffer_mgr_unmap_hash_request(dev, state, src, true);
+ ssi_hash_unmap_result(dev, state, digestsize, result);
+ ssi_hash_unmap_request(dev, state, ctx);
+ }
+ } else {
+ rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 0);
+ if (rc != 0) {
+ SSI_LOG_ERR("send_request() failed (rc=%d)\n", rc);
+ ssi_buffer_mgr_unmap_hash_request(dev, state, src, true);
+ } else {
+ ssi_buffer_mgr_unmap_hash_request(dev, state, src, false);
+ }
+ ssi_hash_unmap_result(dev, state, digestsize, result);
+ ssi_hash_unmap_request(dev, state, ctx);
+ }
+ return rc;
+}
+
+static int ssi_hash_update(struct ahash_req_ctx *state,
+ struct ssi_hash_ctx *ctx,
+ unsigned int block_size,
+ struct scatterlist *src,
+ unsigned int nbytes,
+ void *async_req)
+{
+ struct device *dev = &ctx->drvdata->plat_dev->dev;
+ struct ssi_crypto_req ssi_req = {};
+ HwDesc_s desc[SSI_MAX_AHASH_SEQ_LEN];
+ uint32_t idx = 0;
+ int rc;
+
+ SSI_LOG_DEBUG("===== %s-update (%d) ====\n", ctx->is_hmac ?
+ "hmac":"hash", nbytes);
+
+ if (nbytes == 0) {
+ /* no real updates required */
+ return 0;
+ }
+
+ if (unlikely(rc = ssi_buffer_mgr_map_hash_request_update(ctx->drvdata, state, src, nbytes, block_size))) {
+ if (rc == 1) {
+ SSI_LOG_DEBUG(" data size not require HW update %x\n",
+ nbytes);
+ /* No hardware updates are required */
+ return 0;
+ }
+ SSI_LOG_ERR("map_ahash_request_update() failed\n");
+ return -ENOMEM;
+ }
+
+ if (async_req) {
+ /* Setup DX request structure */
+ ssi_req.user_cb = (void *)ssi_hash_update_complete;
+ ssi_req.user_arg = async_req;
+#ifdef ENABLE_CYCLE_COUNT
+ ssi_req.op_type = STAT_OP_TYPE_ENCODE; /* Use "Encode" stats */
+#endif
+ }
+
+ /* Restore hash digest */
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_CIPHER_MODE(&desc[idx], ctx->hw_mode);
+ HW_DESC_SET_DIN_TYPE(&desc[idx], DMA_DLLI, state->digest_buff_dma_addr, ctx->inter_digestsize, NS_BIT);
+ HW_DESC_SET_FLOW_MODE(&desc[idx], S_DIN_to_HASH);
+ HW_DESC_SET_SETUP_MODE(&desc[idx], SETUP_LOAD_STATE0);
+ idx++;
+ /* Restore hash current length */
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_CIPHER_MODE(&desc[idx], ctx->hw_mode);
+ HW_DESC_SET_DIN_TYPE(&desc[idx], DMA_DLLI, state->digest_bytes_len_dma_addr, HASH_LEN_SIZE, NS_BIT);
+ HW_DESC_SET_FLOW_MODE(&desc[idx], S_DIN_to_HASH);
+ HW_DESC_SET_SETUP_MODE(&desc[idx], SETUP_LOAD_KEY0);
+ idx++;
+
+ ssi_hash_create_data_desc(state, ctx, DIN_HASH, desc, false, &idx);
+
+ /* store the hash digest result in context */
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_CIPHER_MODE(&desc[idx], ctx->hw_mode);
+ HW_DESC_SET_DOUT_DLLI(&desc[idx], state->digest_buff_dma_addr, ctx->inter_digestsize, NS_BIT, 0);
+ HW_DESC_SET_FLOW_MODE(&desc[idx], S_HASH_to_DOUT);
+ HW_DESC_SET_SETUP_MODE(&desc[idx], SETUP_WRITE_STATE0);
+ idx++;
+
+ /* store current hash length in context */
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_CIPHER_MODE(&desc[idx], ctx->hw_mode);
+ HW_DESC_SET_DOUT_DLLI(&desc[idx], state->digest_bytes_len_dma_addr, HASH_LEN_SIZE, NS_BIT, async_req? 1:0);
+ if (async_req) {
+ HW_DESC_SET_QUEUE_LAST_IND(&desc[idx]);
+ }
+ HW_DESC_SET_FLOW_MODE(&desc[idx], S_HASH_to_DOUT);
+ HW_DESC_SET_SETUP_MODE(&desc[idx], SETUP_WRITE_STATE1);
+ idx++;
+
+ if (async_req) {
+ rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 1);
+ if (unlikely(rc != -EINPROGRESS)) {
+ SSI_LOG_ERR("send_request() failed (rc=%d)\n", rc);
+ ssi_buffer_mgr_unmap_hash_request(dev, state, src, true);
+ }
+ } else {
+ rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 0);
+ if (rc != 0) {
+ SSI_LOG_ERR("send_request() failed (rc=%d)\n", rc);
+ ssi_buffer_mgr_unmap_hash_request(dev, state, src, true);
+ } else {
+ ssi_buffer_mgr_unmap_hash_request(dev, state, src, false);
+ }
+ }
+ return rc;
+}
+
+static int ssi_hash_finup(struct ahash_req_ctx *state,
+ struct ssi_hash_ctx *ctx,
+ unsigned int digestsize,
+ struct scatterlist *src,
+ unsigned int nbytes,
+ u8 *result,
+ void *async_req)
+{
+ struct device *dev = &ctx->drvdata->plat_dev->dev;
+ bool is_hmac = ctx->is_hmac;
+ struct ssi_crypto_req ssi_req = {};
+ HwDesc_s desc[SSI_MAX_AHASH_SEQ_LEN];
+ int idx = 0;
+ int rc;
+
+ SSI_LOG_DEBUG("===== %s-finup (%d) ====\n", is_hmac?"hmac":"hash", nbytes);
+
+ if (unlikely(ssi_buffer_mgr_map_hash_request_final(ctx->drvdata, state, src , nbytes, 1) != 0)) {
+ SSI_LOG_ERR("map_ahash_request_final() failed\n");
+ return -ENOMEM;
+ }
+ if (unlikely(ssi_hash_map_result(dev, state, digestsize) != 0)) {
+ SSI_LOG_ERR("map_ahash_digest() failed\n");
+ return -ENOMEM;
+ }
+
+ if (async_req) {
+ /* Setup DX request structure */
+ ssi_req.user_cb = (void *)ssi_hash_complete;
+ ssi_req.user_arg = async_req;
+#ifdef ENABLE_CYCLE_COUNT
+ ssi_req.op_type = STAT_OP_TYPE_ENCODE; /* Use "Encode" stats */
+#endif
+ }
+
+ /* Restore hash digest */
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_CIPHER_MODE(&desc[idx], ctx->hw_mode);
+ HW_DESC_SET_DIN_TYPE(&desc[idx], DMA_DLLI, state->digest_buff_dma_addr, ctx->inter_digestsize, NS_BIT);
+ HW_DESC_SET_FLOW_MODE(&desc[idx], S_DIN_to_HASH);
+ HW_DESC_SET_SETUP_MODE(&desc[idx], SETUP_LOAD_STATE0);
+ idx++;
+
+ /* Restore hash current length */
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_CIPHER_MODE(&desc[idx], ctx->hw_mode);
+ HW_DESC_SET_CIPHER_CONFIG1(&desc[idx], HASH_PADDING_ENABLED);
+ HW_DESC_SET_DIN_TYPE(&desc[idx], DMA_DLLI, state->digest_bytes_len_dma_addr, HASH_LEN_SIZE, NS_BIT);
+ HW_DESC_SET_FLOW_MODE(&desc[idx], S_DIN_to_HASH);
+ HW_DESC_SET_SETUP_MODE(&desc[idx], SETUP_LOAD_KEY0);
+ idx++;
+
+ ssi_hash_create_data_desc(state, ctx, DIN_HASH, desc, false, &idx);
+
+ if (is_hmac) {
+ /* Store the hash digest result in the context */
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_CIPHER_MODE(&desc[idx], ctx->hw_mode);
+ HW_DESC_SET_DOUT_DLLI(&desc[idx], state->digest_buff_dma_addr, digestsize, NS_BIT, 0);
+ ssi_set_hash_endianity(ctx->hash_mode,&desc[idx]);
+ HW_DESC_SET_FLOW_MODE(&desc[idx], S_HASH_to_DOUT);
+ HW_DESC_SET_SETUP_MODE(&desc[idx], SETUP_WRITE_STATE0);
+ idx++;
+
+ /* Loading hash OPAD xor key state */
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_CIPHER_MODE(&desc[idx], ctx->hw_mode);
+ HW_DESC_SET_DIN_TYPE(&desc[idx], DMA_DLLI, state->opad_digest_dma_addr, ctx->inter_digestsize, NS_BIT);
+ HW_DESC_SET_FLOW_MODE(&desc[idx], S_DIN_to_HASH);
+ HW_DESC_SET_SETUP_MODE(&desc[idx], SETUP_LOAD_STATE0);
+ idx++;
+
+ /* Load the hash current length */
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_CIPHER_MODE(&desc[idx], ctx->hw_mode);
+ HW_DESC_SET_DIN_SRAM(&desc[idx], ssi_ahash_get_initial_digest_len_sram_addr(ctx->drvdata, ctx->hash_mode), HASH_LEN_SIZE);
+ HW_DESC_SET_CIPHER_CONFIG1(&desc[idx], HASH_PADDING_ENABLED);
+ HW_DESC_SET_FLOW_MODE(&desc[idx], S_DIN_to_HASH);
+ HW_DESC_SET_SETUP_MODE(&desc[idx], SETUP_LOAD_KEY0);
+ idx++;
+
+ /* Memory Barrier: wait for IPAD/OPAD axi write to complete */
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_DIN_NO_DMA(&desc[idx], 0, 0xfffff0);
+ HW_DESC_SET_DOUT_NO_DMA(&desc[idx], 0, 0, 1);
+ idx++;
+
+ /* Perform HASH update on last digest */
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_DIN_TYPE(&desc[idx], DMA_DLLI, state->digest_buff_dma_addr, digestsize, NS_BIT);
+ HW_DESC_SET_FLOW_MODE(&desc[idx], DIN_HASH);
+ idx++;
+ }
+
+ /* Get final MAC result */
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_DOUT_DLLI(&desc[idx], state->digest_result_dma_addr, digestsize, NS_BIT, async_req? 1:0); /*TODO*/
+ if (async_req) {
+ HW_DESC_SET_QUEUE_LAST_IND(&desc[idx]);
+ }
+ HW_DESC_SET_FLOW_MODE(&desc[idx], S_HASH_to_DOUT);
+ HW_DESC_SET_CIPHER_CONFIG1(&desc[idx], HASH_PADDING_DISABLED);
+ HW_DESC_SET_SETUP_MODE(&desc[idx], SETUP_WRITE_STATE0);
+ ssi_set_hash_endianity(ctx->hash_mode,&desc[idx]);
+ HW_DESC_SET_CIPHER_MODE(&desc[idx], ctx->hw_mode);
+ idx++;
+
+ if (async_req) {
+ rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 1);
+ if (unlikely(rc != -EINPROGRESS)) {
+ SSI_LOG_ERR("send_request() failed (rc=%d)\n", rc);
+ ssi_buffer_mgr_unmap_hash_request(dev, state, src, true);
+ ssi_hash_unmap_result(dev, state, digestsize, result);
+ }
+ } else {
+ rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 0);
+ if (rc != 0) {
+ SSI_LOG_ERR("send_request() failed (rc=%d)\n", rc);
+ ssi_buffer_mgr_unmap_hash_request(dev, state, src, true);
+ ssi_hash_unmap_result(dev, state, digestsize, result);
+ } else {
+ ssi_buffer_mgr_unmap_hash_request(dev, state, src, false);
+ ssi_hash_unmap_result(dev, state, digestsize, result);
+ ssi_hash_unmap_request(dev, state, ctx);
+ }
+ }
+ return rc;
+}
+
+static int ssi_hash_final(struct ahash_req_ctx *state,
+ struct ssi_hash_ctx *ctx,
+ unsigned int digestsize,
+ struct scatterlist *src,
+ unsigned int nbytes,
+ u8 *result,
+ void *async_req)
+{
+ struct device *dev = &ctx->drvdata->plat_dev->dev;
+ bool is_hmac = ctx->is_hmac;
+ struct ssi_crypto_req ssi_req = {};
+ HwDesc_s desc[SSI_MAX_AHASH_SEQ_LEN];
+ int idx = 0;
+ int rc;
+
+ SSI_LOG_DEBUG("===== %s-final (%d) ====\n", is_hmac?"hmac":"hash", nbytes);
+
+ if (unlikely(ssi_buffer_mgr_map_hash_request_final(ctx->drvdata, state, src, nbytes, 0) != 0)) {
+ SSI_LOG_ERR("map_ahash_request_final() failed\n");
+ return -ENOMEM;
+ }
+
+ if (unlikely(ssi_hash_map_result(dev, state, digestsize) != 0)) {
+ SSI_LOG_ERR("map_ahash_digest() failed\n");
+ return -ENOMEM;
+ }
+
+ if (async_req) {
+ /* Setup DX request structure */
+ ssi_req.user_cb = (void *)ssi_hash_complete;
+ ssi_req.user_arg = async_req;
+#ifdef ENABLE_CYCLE_COUNT
+ ssi_req.op_type = STAT_OP_TYPE_ENCODE; /* Use "Encode" stats */
+#endif
+ }
+
+ /* Restore hash digest */
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_CIPHER_MODE(&desc[idx], ctx->hw_mode);
+ HW_DESC_SET_DIN_TYPE(&desc[idx], DMA_DLLI, state->digest_buff_dma_addr, ctx->inter_digestsize, NS_BIT);
+ HW_DESC_SET_FLOW_MODE(&desc[idx], S_DIN_to_HASH);
+ HW_DESC_SET_SETUP_MODE(&desc[idx], SETUP_LOAD_STATE0);
+ idx++;
+
+ /* Restore hash current length */
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_CIPHER_MODE(&desc[idx], ctx->hw_mode);
+ HW_DESC_SET_CIPHER_CONFIG1(&desc[idx], HASH_PADDING_DISABLED);
+ HW_DESC_SET_DIN_TYPE(&desc[idx], DMA_DLLI, state->digest_bytes_len_dma_addr, HASH_LEN_SIZE, NS_BIT);
+ HW_DESC_SET_FLOW_MODE(&desc[idx], S_DIN_to_HASH);
+ HW_DESC_SET_SETUP_MODE(&desc[idx], SETUP_LOAD_KEY0);
+ idx++;
+
+ ssi_hash_create_data_desc(state, ctx, DIN_HASH, desc, false, &idx);
+
+ /* "DO-PAD" must be enabled only when writing current length to HW */
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_CIPHER_DO(&desc[idx], DO_PAD);
+ HW_DESC_SET_CIPHER_MODE(&desc[idx], ctx->hw_mode);
+ HW_DESC_SET_DOUT_DLLI(&desc[idx], state->digest_bytes_len_dma_addr, HASH_LEN_SIZE, NS_BIT, 0);
+ HW_DESC_SET_SETUP_MODE(&desc[idx], SETUP_WRITE_STATE1);
+ HW_DESC_SET_FLOW_MODE(&desc[idx], S_HASH_to_DOUT);
+ idx++;
+
+ if (is_hmac) {
+ /* Store the hash digest result in the context */
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_CIPHER_MODE(&desc[idx], ctx->hw_mode);
+ HW_DESC_SET_DOUT_DLLI(&desc[idx], state->digest_buff_dma_addr, digestsize, NS_BIT, 0);
+ ssi_set_hash_endianity(ctx->hash_mode,&desc[idx]);
+ HW_DESC_SET_FLOW_MODE(&desc[idx], S_HASH_to_DOUT);
+ HW_DESC_SET_SETUP_MODE(&desc[idx], SETUP_WRITE_STATE0);
+ idx++;
+
+ /* Loading hash OPAD xor key state */
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_CIPHER_MODE(&desc[idx], ctx->hw_mode);
+ HW_DESC_SET_DIN_TYPE(&desc[idx], DMA_DLLI, state->opad_digest_dma_addr, ctx->inter_digestsize, NS_BIT);
+ HW_DESC_SET_FLOW_MODE(&desc[idx], S_DIN_to_HASH);
+ HW_DESC_SET_SETUP_MODE(&desc[idx], SETUP_LOAD_STATE0);
+ idx++;
+
+ /* Load the hash current length */
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_CIPHER_MODE(&desc[idx], ctx->hw_mode);
+ HW_DESC_SET_DIN_SRAM(&desc[idx], ssi_ahash_get_initial_digest_len_sram_addr(ctx->drvdata, ctx->hash_mode), HASH_LEN_SIZE);
+ HW_DESC_SET_CIPHER_CONFIG1(&desc[idx], HASH_PADDING_ENABLED);
+ HW_DESC_SET_FLOW_MODE(&desc[idx], S_DIN_to_HASH);
+ HW_DESC_SET_SETUP_MODE(&desc[idx], SETUP_LOAD_KEY0);
+ idx++;
+
+ /* Memory Barrier: wait for IPAD/OPAD axi write to complete */
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_DIN_NO_DMA(&desc[idx], 0, 0xfffff0);
+ HW_DESC_SET_DOUT_NO_DMA(&desc[idx], 0, 0, 1);
+ idx++;
+
+ /* Perform HASH update on last digest */
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_DIN_TYPE(&desc[idx], DMA_DLLI, state->digest_buff_dma_addr, digestsize, NS_BIT);
+ HW_DESC_SET_FLOW_MODE(&desc[idx], DIN_HASH);
+ idx++;
+ }
+
+ /* Get final MAC result */
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_DOUT_DLLI(&desc[idx], state->digest_result_dma_addr, digestsize, NS_BIT, async_req? 1:0);
+ if (async_req) {
+ HW_DESC_SET_QUEUE_LAST_IND(&desc[idx]);
+ }
+ HW_DESC_SET_FLOW_MODE(&desc[idx], S_HASH_to_DOUT);
+ HW_DESC_SET_CIPHER_CONFIG1(&desc[idx], HASH_PADDING_DISABLED);
+ HW_DESC_SET_SETUP_MODE(&desc[idx], SETUP_WRITE_STATE0);
+ ssi_set_hash_endianity(ctx->hash_mode,&desc[idx]);
+ HW_DESC_SET_CIPHER_MODE(&desc[idx], ctx->hw_mode);
+ idx++;
+
+ if (async_req) {
+ rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 1);
+ if (unlikely(rc != -EINPROGRESS)) {
+ SSI_LOG_ERR("send_request() failed (rc=%d)\n", rc);
+ ssi_buffer_mgr_unmap_hash_request(dev, state, src, true);
+ ssi_hash_unmap_result(dev, state, digestsize, result);
+ }
+ } else {
+ rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 0);
+ if (rc != 0) {
+ SSI_LOG_ERR("send_request() failed (rc=%d)\n", rc);
+ ssi_buffer_mgr_unmap_hash_request(dev, state, src, true);
+ ssi_hash_unmap_result(dev, state, digestsize, result);
+ } else {
+ ssi_buffer_mgr_unmap_hash_request(dev, state, src, false);
+ ssi_hash_unmap_result(dev, state, digestsize, result);
+ ssi_hash_unmap_request(dev, state, ctx);
+ }
+ }
+ return rc;
+}
+
+static int ssi_hash_init(struct ahash_req_ctx *state, struct ssi_hash_ctx *ctx)
+{
+ struct device *dev = &ctx->drvdata->plat_dev->dev;
+ state->xcbc_count = 0;
+
+ ssi_hash_map_request(dev, state, ctx);
+
+ return 0;
+}
+
+#ifdef EXPORT_FIXED
+static int ssi_hash_export(struct ssi_hash_ctx *ctx, void *out)
+{
+ memcpy(out, ctx, sizeof(struct ssi_hash_ctx));
+ return 0;
+}
+
+static int ssi_hash_import(struct ssi_hash_ctx *ctx, const void *in)
+{
+ memcpy(ctx, in, sizeof(struct ssi_hash_ctx));
+ return 0;
+}
+#endif
+
+static int ssi_hash_setkey(void *hash,
+ const u8 *key,
+ unsigned int keylen,
+ bool synchronize)
+{
+ unsigned int hmacPadConst[2] = { HMAC_IPAD_CONST, HMAC_OPAD_CONST };
+ struct ssi_crypto_req ssi_req = {};
+ struct ssi_hash_ctx *ctx = NULL;
+ int blocksize = 0;
+ int digestsize = 0;
+ int i, idx = 0, rc = 0;
+ HwDesc_s desc[SSI_MAX_AHASH_SEQ_LEN];
+ ssi_sram_addr_t larval_addr;
+
+ SSI_LOG_DEBUG("ssi_hash_setkey: start keylen: %d", keylen);
+
+ if (synchronize) {
+ ctx = crypto_shash_ctx(((struct crypto_shash *)hash));
+ blocksize = crypto_tfm_alg_blocksize(&((struct crypto_shash *)hash)->base);
+ digestsize = crypto_shash_digestsize(((struct crypto_shash *)hash));
+ } else {
+ ctx = crypto_ahash_ctx(((struct crypto_ahash *)hash));
+ blocksize = crypto_tfm_alg_blocksize(&((struct crypto_ahash *)hash)->base);
+ digestsize = crypto_ahash_digestsize(((struct crypto_ahash *)hash));
+ }
+
+ larval_addr = ssi_ahash_get_larval_digest_sram_addr(
+ ctx->drvdata, ctx->hash_mode);
+
+ /* The keylen value distinguishes HASH in case keylen is ZERO bytes,
+ any NON-ZERO value utilizes HMAC flow */
+ ctx->key_params.keylen = keylen;
+ ctx->key_params.key_dma_addr = 0;
+ ctx->is_hmac = true;
+
+ if (keylen != 0) {
+ ctx->key_params.key_dma_addr = dma_map_single(
+ &ctx->drvdata->plat_dev->dev,
+ (void *)key,
+ keylen, DMA_TO_DEVICE);
+ if (unlikely(dma_mapping_error(&ctx->drvdata->plat_dev->dev,
+ ctx->key_params.key_dma_addr))) {
+ SSI_LOG_ERR("Mapping key va=0x%p len=%u for"
+ " DMA failed\n", key, keylen);
+ return -ENOMEM;
+ }
+ SSI_UPDATE_DMA_ADDR_TO_48BIT(ctx->key_params.key_dma_addr, keylen);
+ SSI_LOG_DEBUG("mapping key-buffer: key_dma_addr=0x%llX "
+ "keylen=%u\n",
+ (unsigned long long)ctx->key_params.key_dma_addr,
+ ctx->key_params.keylen);
+
+ if (keylen > blocksize) {
+ /* Load hash initial state */
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_CIPHER_MODE(&desc[idx], ctx->hw_mode);
+ HW_DESC_SET_DIN_SRAM(&desc[idx], larval_addr,
+ ctx->inter_digestsize);
+ HW_DESC_SET_FLOW_MODE(&desc[idx], S_DIN_to_HASH);
+ HW_DESC_SET_SETUP_MODE(&desc[idx], SETUP_LOAD_STATE0);
+ idx++;
+
+ /* Load the hash current length*/
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_CIPHER_MODE(&desc[idx], ctx->hw_mode);
+ HW_DESC_SET_DIN_CONST(&desc[idx], 0, HASH_LEN_SIZE);
+ HW_DESC_SET_CIPHER_CONFIG1(&desc[idx], HASH_PADDING_ENABLED);
+ HW_DESC_SET_FLOW_MODE(&desc[idx], S_DIN_to_HASH);
+ HW_DESC_SET_SETUP_MODE(&desc[idx], SETUP_LOAD_KEY0);
+ idx++;
+
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_DIN_TYPE(&desc[idx], DMA_DLLI,
+ ctx->key_params.key_dma_addr,
+ keylen, NS_BIT);
+ HW_DESC_SET_FLOW_MODE(&desc[idx], DIN_HASH);
+ idx++;
+
+ /* Get hashed key */
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_CIPHER_MODE(&desc[idx], ctx->hw_mode);
+ HW_DESC_SET_DOUT_DLLI(&desc[idx], ctx->opad_tmp_keys_dma_addr,
+ digestsize, NS_BIT, 0);
+ HW_DESC_SET_FLOW_MODE(&desc[idx], S_HASH_to_DOUT);
+ HW_DESC_SET_SETUP_MODE(&desc[idx], SETUP_WRITE_STATE0);
+ HW_DESC_SET_CIPHER_CONFIG1(&desc[idx], HASH_PADDING_DISABLED);
+ ssi_set_hash_endianity(ctx->hash_mode,&desc[idx]);
+ idx++;
+
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_DIN_CONST(&desc[idx], 0, (blocksize - digestsize));
+ HW_DESC_SET_FLOW_MODE(&desc[idx], BYPASS);
+ HW_DESC_SET_DOUT_DLLI(&desc[idx],
+ (ctx->opad_tmp_keys_dma_addr + digestsize),
+ (blocksize - digestsize),
+ NS_BIT, 0);
+ idx++;
+ } else {
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_DIN_TYPE(&desc[idx], DMA_DLLI,
+ ctx->key_params.key_dma_addr,
+ keylen, NS_BIT);
+ HW_DESC_SET_FLOW_MODE(&desc[idx], BYPASS);
+ HW_DESC_SET_DOUT_DLLI(&desc[idx],
+ (ctx->opad_tmp_keys_dma_addr),
+ keylen, NS_BIT, 0);
+ idx++;
+
+ if ((blocksize - keylen) != 0) {
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_DIN_CONST(&desc[idx], 0, (blocksize - keylen));
+ HW_DESC_SET_FLOW_MODE(&desc[idx], BYPASS);
+ HW_DESC_SET_DOUT_DLLI(&desc[idx],
+ (ctx->opad_tmp_keys_dma_addr + keylen),
+ (blocksize - keylen),
+ NS_BIT, 0);
+ idx++;
+ }
+ }
+ } else {
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_DIN_CONST(&desc[idx], 0, blocksize);
+ HW_DESC_SET_FLOW_MODE(&desc[idx], BYPASS);
+ HW_DESC_SET_DOUT_DLLI(&desc[idx],
+ (ctx->opad_tmp_keys_dma_addr),
+ blocksize,
+ NS_BIT, 0);
+ idx++;
+ }
+
+ rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 0);
+ if (unlikely(rc != 0)) {
+ SSI_LOG_ERR("send_request() failed (rc=%d)\n", rc);
+ goto out;
+ }
+
+ /* calc derived HMAC key */
+ for (idx = 0, i = 0; i < 2; i++) {
+ /* Load hash initial state */
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_CIPHER_MODE(&desc[idx], ctx->hw_mode);
+ HW_DESC_SET_DIN_SRAM(&desc[idx], larval_addr,
+ ctx->inter_digestsize);
+ HW_DESC_SET_FLOW_MODE(&desc[idx], S_DIN_to_HASH);
+ HW_DESC_SET_SETUP_MODE(&desc[idx], SETUP_LOAD_STATE0);
+ idx++;
+
+ /* Load the hash current length*/
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_CIPHER_MODE(&desc[idx], ctx->hw_mode);
+ HW_DESC_SET_DIN_CONST(&desc[idx], 0, HASH_LEN_SIZE);
+ HW_DESC_SET_FLOW_MODE(&desc[idx], S_DIN_to_HASH);
+ HW_DESC_SET_SETUP_MODE(&desc[idx], SETUP_LOAD_KEY0);
+ idx++;
+
+ /* Prepare ipad key */
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_XOR_VAL(&desc[idx], hmacPadConst[i]);
+ HW_DESC_SET_CIPHER_MODE(&desc[idx], ctx->hw_mode);
+ HW_DESC_SET_FLOW_MODE(&desc[idx], S_DIN_to_HASH);
+ HW_DESC_SET_SETUP_MODE(&desc[idx], SETUP_LOAD_STATE1);
+ idx++;
+
+ /* Perform HASH update */
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_DIN_TYPE(&desc[idx], DMA_DLLI,
+ ctx->opad_tmp_keys_dma_addr,
+ blocksize, NS_BIT);
+ HW_DESC_SET_CIPHER_MODE(&desc[idx],ctx->hw_mode);
+ HW_DESC_SET_XOR_ACTIVE(&desc[idx]);
+ HW_DESC_SET_FLOW_MODE(&desc[idx], DIN_HASH);
+ idx++;
+
+ /* Get the IPAD/OPAD xor key (Note, IPAD is the initial digest of the first HASH "update" state) */
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_CIPHER_MODE(&desc[idx], ctx->hw_mode);
+ if (i > 0) /* Not first iteration */
+ HW_DESC_SET_DOUT_DLLI(&desc[idx],
+ ctx->opad_tmp_keys_dma_addr,
+ ctx->inter_digestsize,
+ NS_BIT, 0);
+ else /* First iteration */
+ HW_DESC_SET_DOUT_DLLI(&desc[idx],
+ ctx->digest_buff_dma_addr,
+ ctx->inter_digestsize,
+ NS_BIT, 0);
+ HW_DESC_SET_FLOW_MODE(&desc[idx], S_HASH_to_DOUT);
+ HW_DESC_SET_SETUP_MODE(&desc[idx], SETUP_WRITE_STATE0);
+ idx++;
+ }
+
+ rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 0);
+
+out:
+ if (rc != 0) {
+ if (synchronize) {
+ crypto_shash_set_flags((struct crypto_shash *)hash, CRYPTO_TFM_RES_BAD_KEY_LEN);
+ } else {
+ crypto_ahash_set_flags((struct crypto_ahash *)hash, CRYPTO_TFM_RES_BAD_KEY_LEN);
+ }
+ }
+
+ if (ctx->key_params.key_dma_addr) {
+ SSI_RESTORE_DMA_ADDR_TO_48BIT(ctx->key_params.key_dma_addr);
+ dma_unmap_single(&ctx->drvdata->plat_dev->dev,
+ ctx->key_params.key_dma_addr,
+ ctx->key_params.keylen, DMA_TO_DEVICE);
+ SSI_LOG_DEBUG("Unmapped key-buffer: key_dma_addr=0x%llX keylen=%u\n",
+ (unsigned long long)ctx->key_params.key_dma_addr,
+ ctx->key_params.keylen);
+ }
+ return rc;
+}
+
+
+static int ssi_xcbc_setkey(struct crypto_ahash *ahash,
+ const u8 *key, unsigned int keylen)
+{
+ struct ssi_crypto_req ssi_req = {};
+ struct ssi_hash_ctx *ctx = crypto_ahash_ctx(ahash);
+ int idx = 0, rc = 0;
+ HwDesc_s desc[SSI_MAX_AHASH_SEQ_LEN];
+
+ SSI_LOG_DEBUG("===== setkey (%d) ====\n", keylen);
+
+ switch (keylen) {
+ case AES_KEYSIZE_128:
+ case AES_KEYSIZE_192:
+ case AES_KEYSIZE_256:
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ ctx->key_params.keylen = keylen;
+
+ ctx->key_params.key_dma_addr = dma_map_single(
+ &ctx->drvdata->plat_dev->dev,
+ (void *)key,
+ keylen, DMA_TO_DEVICE);
+ if (unlikely(dma_mapping_error(&ctx->drvdata->plat_dev->dev,
+ ctx->key_params.key_dma_addr))) {
+ SSI_LOG_ERR("Mapping key va=0x%p len=%u for"
+ " DMA failed\n", key, keylen);
+ return -ENOMEM;
+ }
+ SSI_UPDATE_DMA_ADDR_TO_48BIT(ctx->key_params.key_dma_addr, keylen);
+ SSI_LOG_DEBUG("mapping key-buffer: key_dma_addr=0x%llX "
+ "keylen=%u\n",
+ (unsigned long long)ctx->key_params.key_dma_addr,
+ ctx->key_params.keylen);
+
+ ctx->is_hmac = true;
+ /* 1. Load the AES key */
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_DIN_TYPE(&desc[idx], DMA_DLLI, ctx->key_params.key_dma_addr, keylen, NS_BIT);
+ HW_DESC_SET_CIPHER_MODE(&desc[idx], DRV_CIPHER_ECB);
+ HW_DESC_SET_CIPHER_CONFIG0(&desc[idx], DRV_CRYPTO_DIRECTION_ENCRYPT);
+ HW_DESC_SET_KEY_SIZE_AES(&desc[idx], keylen);
+ HW_DESC_SET_FLOW_MODE(&desc[idx], S_DIN_to_AES);
+ HW_DESC_SET_SETUP_MODE(&desc[idx], SETUP_LOAD_KEY0);
+ idx++;
+
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_DIN_CONST(&desc[idx], 0x01010101, CC_AES_128_BIT_KEY_SIZE);
+ HW_DESC_SET_FLOW_MODE(&desc[idx], DIN_AES_DOUT);
+ HW_DESC_SET_DOUT_DLLI(&desc[idx], (ctx->opad_tmp_keys_dma_addr +
+ XCBC_MAC_K1_OFFSET),
+ CC_AES_128_BIT_KEY_SIZE, NS_BIT, 0);
+ idx++;
+
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_DIN_CONST(&desc[idx], 0x02020202, CC_AES_128_BIT_KEY_SIZE);
+ HW_DESC_SET_FLOW_MODE(&desc[idx], DIN_AES_DOUT);
+ HW_DESC_SET_DOUT_DLLI(&desc[idx], (ctx->opad_tmp_keys_dma_addr +
+ XCBC_MAC_K2_OFFSET),
+ CC_AES_128_BIT_KEY_SIZE, NS_BIT, 0);
+ idx++;
+
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_DIN_CONST(&desc[idx], 0x03030303, CC_AES_128_BIT_KEY_SIZE);
+ HW_DESC_SET_FLOW_MODE(&desc[idx], DIN_AES_DOUT);
+ HW_DESC_SET_DOUT_DLLI(&desc[idx], (ctx->opad_tmp_keys_dma_addr +
+ XCBC_MAC_K3_OFFSET),
+ CC_AES_128_BIT_KEY_SIZE, NS_BIT, 0);
+ idx++;
+
+ rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 0);
+
+ if (rc != 0)
+ crypto_ahash_set_flags(ahash, CRYPTO_TFM_RES_BAD_KEY_LEN);
+
+ SSI_RESTORE_DMA_ADDR_TO_48BIT(ctx->key_params.key_dma_addr);
+ dma_unmap_single(&ctx->drvdata->plat_dev->dev,
+ ctx->key_params.key_dma_addr,
+ ctx->key_params.keylen, DMA_TO_DEVICE);
+ SSI_LOG_DEBUG("Unmapped key-buffer: key_dma_addr=0x%llX keylen=%u\n",
+ (unsigned long long)ctx->key_params.key_dma_addr,
+ ctx->key_params.keylen);
+
+ return rc;
+}
+#if SSI_CC_HAS_CMAC
+static int ssi_cmac_setkey(struct crypto_ahash *ahash,
+ const u8 *key, unsigned int keylen)
+{
+ struct ssi_hash_ctx *ctx = crypto_ahash_ctx(ahash);
+ DECL_CYCLE_COUNT_RESOURCES;
+ SSI_LOG_DEBUG("===== setkey (%d) ====\n", keylen);
+
+ ctx->is_hmac = true;
+
+ switch (keylen) {
+ case AES_KEYSIZE_128:
+ case AES_KEYSIZE_192:
+ case AES_KEYSIZE_256:
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ ctx->key_params.keylen = keylen;
+
+ /* STAT_PHASE_1: Copy key to ctx */
+ START_CYCLE_COUNT();
+
+ SSI_RESTORE_DMA_ADDR_TO_48BIT(ctx->opad_tmp_keys_dma_addr);
+ dma_sync_single_for_cpu(&ctx->drvdata->plat_dev->dev,
+ ctx->opad_tmp_keys_dma_addr,
+ keylen, DMA_TO_DEVICE);
+
+ memcpy(ctx->opad_tmp_keys_buff, key, keylen);
+ if (keylen == 24)
+ memset(ctx->opad_tmp_keys_buff + 24, 0, CC_AES_KEY_SIZE_MAX - 24);
+
+ dma_sync_single_for_device(&ctx->drvdata->plat_dev->dev,
+ ctx->opad_tmp_keys_dma_addr,
+ keylen, DMA_TO_DEVICE);
+ SSI_UPDATE_DMA_ADDR_TO_48BIT(ctx->opad_tmp_keys_dma_addr, keylen);
+
+ ctx->key_params.keylen = keylen;
+
+ END_CYCLE_COUNT(STAT_OP_TYPE_SETKEY, STAT_PHASE_1);
+
+ return 0;
+}
+#endif
+
+static void ssi_hash_free_ctx(struct ssi_hash_ctx *ctx)
+{
+ struct device *dev = &ctx->drvdata->plat_dev->dev;
+
+ if (ctx->digest_buff_dma_addr != 0) {
+ SSI_RESTORE_DMA_ADDR_TO_48BIT(ctx->digest_buff_dma_addr);
+ dma_unmap_single(dev, ctx->digest_buff_dma_addr,
+ sizeof(ctx->digest_buff), DMA_BIDIRECTIONAL);
+ SSI_LOG_DEBUG("Unmapped digest-buffer: "
+ "digest_buff_dma_addr=0x%llX\n",
+ (unsigned long long)ctx->digest_buff_dma_addr);
+ ctx->digest_buff_dma_addr = 0;
+ }
+ if (ctx->opad_tmp_keys_dma_addr != 0) {
+ SSI_RESTORE_DMA_ADDR_TO_48BIT(ctx->opad_tmp_keys_dma_addr);
+ dma_unmap_single(dev, ctx->opad_tmp_keys_dma_addr,
+ sizeof(ctx->opad_tmp_keys_buff),
+ DMA_BIDIRECTIONAL);
+ SSI_LOG_DEBUG("Unmapped opad-digest: "
+ "opad_tmp_keys_dma_addr=0x%llX\n",
+ (unsigned long long)ctx->opad_tmp_keys_dma_addr);
+ ctx->opad_tmp_keys_dma_addr = 0;
+ }
+
+ ctx->key_params.keylen = 0;
+
+}
+
+
+static int ssi_hash_alloc_ctx(struct ssi_hash_ctx *ctx)
+{
+ struct device *dev = &ctx->drvdata->plat_dev->dev;
+
+ ctx->key_params.keylen = 0;
+
+ ctx->digest_buff_dma_addr = dma_map_single(dev, (void *)ctx->digest_buff, sizeof(ctx->digest_buff), DMA_BIDIRECTIONAL);
+ if (dma_mapping_error(dev, ctx->digest_buff_dma_addr)) {
+ SSI_LOG_ERR("Mapping digest len %zu B at va=%pK for DMA failed\n",
+ sizeof(ctx->digest_buff), ctx->digest_buff);
+ goto fail;
+ }
+ SSI_UPDATE_DMA_ADDR_TO_48BIT(ctx->digest_buff_dma_addr,
+ sizeof(ctx->digest_buff));
+ SSI_LOG_DEBUG("Mapped digest %zu B at va=%pK to dma=0x%llX\n",
+ sizeof(ctx->digest_buff), ctx->digest_buff,
+ (unsigned long long)ctx->digest_buff_dma_addr);
+
+ ctx->opad_tmp_keys_dma_addr = dma_map_single(dev, (void *)ctx->opad_tmp_keys_buff, sizeof(ctx->opad_tmp_keys_buff), DMA_BIDIRECTIONAL);
+ if (dma_mapping_error(dev, ctx->opad_tmp_keys_dma_addr)) {
+ SSI_LOG_ERR("Mapping opad digest %zu B at va=%pK for DMA failed\n",
+ sizeof(ctx->opad_tmp_keys_buff),
+ ctx->opad_tmp_keys_buff);
+ goto fail;
+ }
+ SSI_UPDATE_DMA_ADDR_TO_48BIT(ctx->opad_tmp_keys_dma_addr,
+ sizeof(ctx->opad_tmp_keys_buff));
+ SSI_LOG_DEBUG("Mapped opad_tmp_keys %zu B at va=%pK to dma=0x%llX\n",
+ sizeof(ctx->opad_tmp_keys_buff), ctx->opad_tmp_keys_buff,
+ (unsigned long long)ctx->opad_tmp_keys_dma_addr);
+
+ ctx->is_hmac = false;
+ return 0;
+
+fail:
+ ssi_hash_free_ctx(ctx);
+ return -ENOMEM;
+}
+
+static int ssi_shash_cra_init(struct crypto_tfm *tfm)
+{
+ struct ssi_hash_ctx *ctx = crypto_tfm_ctx(tfm);
+ struct shash_alg * shash_alg =
+ container_of(tfm->__crt_alg, struct shash_alg, base);
+ struct ssi_hash_alg *ssi_alg =
+ container_of(shash_alg, struct ssi_hash_alg, shash_alg);
+
+ ctx->hash_mode = ssi_alg->hash_mode;
+ ctx->hw_mode = ssi_alg->hw_mode;
+ ctx->inter_digestsize = ssi_alg->inter_digestsize;
+ ctx->drvdata = ssi_alg->drvdata;
+
+ return ssi_hash_alloc_ctx(ctx);
+}
+
+static int ssi_ahash_cra_init(struct crypto_tfm *tfm)
+{
+ struct ssi_hash_ctx *ctx = crypto_tfm_ctx(tfm);
+ struct hash_alg_common * hash_alg_common =
+ container_of(tfm->__crt_alg, struct hash_alg_common, base);
+ struct ahash_alg *ahash_alg =
+ container_of(hash_alg_common, struct ahash_alg, halg);
+ struct ssi_hash_alg *ssi_alg =
+ container_of(ahash_alg, struct ssi_hash_alg, ahash_alg);
+
+
+ crypto_ahash_set_reqsize(__crypto_ahash_cast(tfm),
+ sizeof(struct ahash_req_ctx));
+
+ ctx->hash_mode = ssi_alg->hash_mode;
+ ctx->hw_mode = ssi_alg->hw_mode;
+ ctx->inter_digestsize = ssi_alg->inter_digestsize;
+ ctx->drvdata = ssi_alg->drvdata;
+
+ return ssi_hash_alloc_ctx(ctx);
+}
+
+static void ssi_hash_cra_exit(struct crypto_tfm *tfm)
+{
+ struct ssi_hash_ctx *ctx = crypto_tfm_ctx(tfm);
+
+ SSI_LOG_DEBUG("ssi_hash_cra_exit");
+ ssi_hash_free_ctx(ctx);
+}
+
+static int ssi_mac_update(struct ahash_request *req)
+{
+ struct ahash_req_ctx *state = ahash_request_ctx(req);
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct ssi_hash_ctx *ctx = crypto_ahash_ctx(tfm);
+ struct device *dev = &ctx->drvdata->plat_dev->dev;
+ unsigned int block_size = crypto_tfm_alg_blocksize(&tfm->base);
+ struct ssi_crypto_req ssi_req = {};
+ HwDesc_s desc[SSI_MAX_AHASH_SEQ_LEN];
+ int rc;
+ uint32_t idx = 0;
+
+ if (req->nbytes == 0) {
+ /* no real updates required */
+ return 0;
+ }
+
+ state->xcbc_count++;
+
+ if (unlikely(rc = ssi_buffer_mgr_map_hash_request_update(ctx->drvdata, state, req->src, req->nbytes, block_size))) {
+ if (rc == 1) {
+ SSI_LOG_DEBUG(" data size not require HW update %x\n",
+ req->nbytes);
+ /* No hardware updates are required */
+ return 0;
+ }
+ SSI_LOG_ERR("map_ahash_request_update() failed\n");
+ return -ENOMEM;
+ }
+
+ if (ctx->hw_mode == DRV_CIPHER_XCBC_MAC) {
+ ssi_hash_create_xcbc_setup(req, desc, &idx);
+ } else {
+ ssi_hash_create_cmac_setup(req, desc, &idx);
+ }
+
+ ssi_hash_create_data_desc(state, ctx, DIN_AES_DOUT, desc, true, &idx);
+
+ /* store the hash digest result in context */
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_CIPHER_MODE(&desc[idx], ctx->hw_mode);
+ HW_DESC_SET_DOUT_DLLI(&desc[idx], state->digest_buff_dma_addr, ctx->inter_digestsize, NS_BIT, 1);
+ HW_DESC_SET_QUEUE_LAST_IND(&desc[idx]);
+ HW_DESC_SET_FLOW_MODE(&desc[idx], S_AES_to_DOUT);
+ HW_DESC_SET_SETUP_MODE(&desc[idx], SETUP_WRITE_STATE0);
+ idx++;
+
+ /* Setup DX request structure */
+ ssi_req.user_cb = (void *)ssi_hash_update_complete;
+ ssi_req.user_arg = (void *)req;
+#ifdef ENABLE_CYCLE_COUNT
+ ssi_req.op_type = STAT_OP_TYPE_ENCODE; /* Use "Encode" stats */
+#endif
+
+ rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 1);
+ if (unlikely(rc != -EINPROGRESS)) {
+ SSI_LOG_ERR("send_request() failed (rc=%d)\n", rc);
+ ssi_buffer_mgr_unmap_hash_request(dev, state, req->src, true);
+ }
+ return rc;
+}
+
+static int ssi_mac_final(struct ahash_request *req)
+{
+ struct ahash_req_ctx *state = ahash_request_ctx(req);
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct ssi_hash_ctx *ctx = crypto_ahash_ctx(tfm);
+ struct device *dev = &ctx->drvdata->plat_dev->dev;
+ struct ssi_crypto_req ssi_req = {};
+ HwDesc_s desc[SSI_MAX_AHASH_SEQ_LEN];
+ int idx = 0;
+ int rc = 0;
+ uint32_t keySize, keyLen;
+ uint32_t digestsize = crypto_ahash_digestsize(tfm);
+
+ uint32_t rem_cnt = state->buff_index ? state->buff1_cnt :
+ state->buff0_cnt;
+
+
+ if (ctx->hw_mode == DRV_CIPHER_XCBC_MAC) {
+ keySize = CC_AES_128_BIT_KEY_SIZE;
+ keyLen = CC_AES_128_BIT_KEY_SIZE;
+ } else {
+ keySize = (ctx->key_params.keylen == 24) ? AES_MAX_KEY_SIZE : ctx->key_params.keylen;
+ keyLen = ctx->key_params.keylen;
+ }
+
+ SSI_LOG_DEBUG("===== final xcbc reminder (%d) ====\n", rem_cnt);
+
+ if (unlikely(ssi_buffer_mgr_map_hash_request_final(ctx->drvdata, state, req->src, req->nbytes, 0) != 0)) {
+ SSI_LOG_ERR("map_ahash_request_final() failed\n");
+ return -ENOMEM;
+ }
+
+ if (unlikely(ssi_hash_map_result(dev, state, digestsize) != 0)) {
+ SSI_LOG_ERR("map_ahash_digest() failed\n");
+ return -ENOMEM;
+ }
+
+ /* Setup DX request structure */
+ ssi_req.user_cb = (void *)ssi_hash_complete;
+ ssi_req.user_arg = (void *)req;
+#ifdef ENABLE_CYCLE_COUNT
+ ssi_req.op_type = STAT_OP_TYPE_ENCODE; /* Use "Encode" stats */
+#endif
+
+ if (state->xcbc_count && (rem_cnt == 0)) {
+ /* Load key for ECB decryption */
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_CIPHER_MODE(&desc[idx], DRV_CIPHER_ECB);
+ HW_DESC_SET_CIPHER_CONFIG0(&desc[idx], DRV_CRYPTO_DIRECTION_DECRYPT);
+ HW_DESC_SET_DIN_TYPE(&desc[idx], DMA_DLLI,
+ (ctx->opad_tmp_keys_dma_addr +
+ XCBC_MAC_K1_OFFSET),
+ keySize, NS_BIT);
+ HW_DESC_SET_KEY_SIZE_AES(&desc[idx], keyLen);
+ HW_DESC_SET_FLOW_MODE(&desc[idx], S_DIN_to_AES);
+ HW_DESC_SET_SETUP_MODE(&desc[idx], SETUP_LOAD_KEY0);
+ idx++;
+
+
+ /* Initiate decryption of block state to previous block_state-XOR-M[n] */
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_DIN_TYPE(&desc[idx], DMA_DLLI, state->digest_buff_dma_addr, CC_AES_BLOCK_SIZE, NS_BIT);
+ HW_DESC_SET_DOUT_DLLI(&desc[idx], state->digest_buff_dma_addr, CC_AES_BLOCK_SIZE, NS_BIT,0);
+ HW_DESC_SET_FLOW_MODE(&desc[idx], DIN_AES_DOUT);
+ idx++;
+
+ /* Memory Barrier: wait for axi write to complete */
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_DIN_NO_DMA(&desc[idx], 0, 0xfffff0);
+ HW_DESC_SET_DOUT_NO_DMA(&desc[idx], 0, 0, 1);
+ idx++;
+ }
+
+ if (ctx->hw_mode == DRV_CIPHER_XCBC_MAC) {
+ ssi_hash_create_xcbc_setup(req, desc, &idx);
+ } else {
+ ssi_hash_create_cmac_setup(req, desc, &idx);
+ }
+
+ if (state->xcbc_count == 0) {
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_CIPHER_MODE(&desc[idx], ctx->hw_mode);
+ HW_DESC_SET_KEY_SIZE_AES(&desc[idx], keyLen);
+ HW_DESC_SET_CMAC_SIZE0_MODE(&desc[idx]);
+ HW_DESC_SET_FLOW_MODE(&desc[idx], S_DIN_to_AES);
+ idx++;
+ } else if (rem_cnt > 0) {
+ ssi_hash_create_data_desc(state, ctx, DIN_AES_DOUT, desc, false, &idx);
+ } else {
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_DIN_CONST(&desc[idx], 0x00, CC_AES_BLOCK_SIZE);
+ HW_DESC_SET_FLOW_MODE(&desc[idx], DIN_AES_DOUT);
+ idx++;
+ }
+
+ /* Get final MAC result */
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_DOUT_DLLI(&desc[idx], state->digest_result_dma_addr, digestsize, NS_BIT, 1); /*TODO*/
+ HW_DESC_SET_QUEUE_LAST_IND(&desc[idx]);
+ HW_DESC_SET_FLOW_MODE(&desc[idx], S_AES_to_DOUT);
+ HW_DESC_SET_SETUP_MODE(&desc[idx], SETUP_WRITE_STATE0);
+ HW_DESC_SET_CIPHER_MODE(&desc[idx], ctx->hw_mode);
+ idx++;
+
+ rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 1);
+ if (unlikely(rc != -EINPROGRESS)) {
+ SSI_LOG_ERR("send_request() failed (rc=%d)\n", rc);
+ ssi_buffer_mgr_unmap_hash_request(dev, state, req->src, true);
+ ssi_hash_unmap_result(dev, state, digestsize, req->result);
+ }
+ return rc;
+}
+
+static int ssi_mac_finup(struct ahash_request *req)
+{
+ struct ahash_req_ctx *state = ahash_request_ctx(req);
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct ssi_hash_ctx *ctx = crypto_ahash_ctx(tfm);
+ struct device *dev = &ctx->drvdata->plat_dev->dev;
+ struct ssi_crypto_req ssi_req = {};
+ HwDesc_s desc[SSI_MAX_AHASH_SEQ_LEN];
+ int idx = 0;
+ int rc = 0;
+ uint32_t key_len = 0;
+ uint32_t digestsize = crypto_ahash_digestsize(tfm);
+
+ SSI_LOG_DEBUG("===== finup xcbc(%d) ====\n", req->nbytes);
+
+ if (state->xcbc_count > 0 && req->nbytes == 0) {
+ SSI_LOG_DEBUG("No data to update. Call to fdx_mac_final \n");
+ return ssi_mac_final(req);
+ }
+
+ if (unlikely(ssi_buffer_mgr_map_hash_request_final(ctx->drvdata, state, req->src, req->nbytes, 1) != 0)) {
+ SSI_LOG_ERR("map_ahash_request_final() failed\n");
+ return -ENOMEM;
+ }
+ if (unlikely(ssi_hash_map_result(dev, state, digestsize) != 0)) {
+ SSI_LOG_ERR("map_ahash_digest() failed\n");
+ return -ENOMEM;
+ }
+
+ /* Setup DX request structure */
+ ssi_req.user_cb = (void *)ssi_hash_complete;
+ ssi_req.user_arg = (void *)req;
+#ifdef ENABLE_CYCLE_COUNT
+ ssi_req.op_type = STAT_OP_TYPE_ENCODE; /* Use "Encode" stats */
+#endif
+
+ if (ctx->hw_mode == DRV_CIPHER_XCBC_MAC) {
+ key_len = CC_AES_128_BIT_KEY_SIZE;
+ ssi_hash_create_xcbc_setup(req, desc, &idx);
+ } else {
+ key_len = ctx->key_params.keylen;
+ ssi_hash_create_cmac_setup(req, desc, &idx);
+ }
+
+ if (req->nbytes == 0) {
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_CIPHER_MODE(&desc[idx], ctx->hw_mode);
+ HW_DESC_SET_KEY_SIZE_AES(&desc[idx], key_len);
+ HW_DESC_SET_CMAC_SIZE0_MODE(&desc[idx]);
+ HW_DESC_SET_FLOW_MODE(&desc[idx], S_DIN_to_AES);
+ idx++;
+ } else {
+ ssi_hash_create_data_desc(state, ctx, DIN_AES_DOUT, desc, false, &idx);
+ }
+
+ /* Get final MAC result */
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_DOUT_DLLI(&desc[idx], state->digest_result_dma_addr, digestsize, NS_BIT, 1); /*TODO*/
+ HW_DESC_SET_QUEUE_LAST_IND(&desc[idx]);
+ HW_DESC_SET_FLOW_MODE(&desc[idx], S_AES_to_DOUT);
+ HW_DESC_SET_SETUP_MODE(&desc[idx], SETUP_WRITE_STATE0);
+ HW_DESC_SET_CIPHER_MODE(&desc[idx], ctx->hw_mode);
+ idx++;
+
+ rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 1);
+ if (unlikely(rc != -EINPROGRESS)) {
+ SSI_LOG_ERR("send_request() failed (rc=%d)\n", rc);
+ ssi_buffer_mgr_unmap_hash_request(dev, state, req->src, true);
+ ssi_hash_unmap_result(dev, state, digestsize, req->result);
+ }
+ return rc;
+}
+
+static int ssi_mac_digest(struct ahash_request *req)
+{
+ struct ahash_req_ctx *state = ahash_request_ctx(req);
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct ssi_hash_ctx *ctx = crypto_ahash_ctx(tfm);
+ struct device *dev = &ctx->drvdata->plat_dev->dev;
+ uint32_t digestsize = crypto_ahash_digestsize(tfm);
+ struct ssi_crypto_req ssi_req = {};
+ HwDesc_s desc[SSI_MAX_AHASH_SEQ_LEN];
+ uint32_t keyLen;
+ int idx = 0;
+ int rc;
+
+ SSI_LOG_DEBUG("===== -digest mac (%d) ====\n", req->nbytes);
+
+ if (unlikely(ssi_hash_map_request(dev, state, ctx) != 0)) {
+ SSI_LOG_ERR("map_ahash_source() failed\n");
+ return -ENOMEM;
+ }
+ if (unlikely(ssi_hash_map_result(dev, state, digestsize) != 0)) {
+ SSI_LOG_ERR("map_ahash_digest() failed\n");
+ return -ENOMEM;
+ }
+
+ if (unlikely(ssi_buffer_mgr_map_hash_request_final(ctx->drvdata, state, req->src, req->nbytes, 1) != 0)) {
+ SSI_LOG_ERR("map_ahash_request_final() failed\n");
+ return -ENOMEM;
+ }
+
+ /* Setup DX request structure */
+ ssi_req.user_cb = (void *)ssi_hash_digest_complete;
+ ssi_req.user_arg = (void *)req;
+#ifdef ENABLE_CYCLE_COUNT
+ ssi_req.op_type = STAT_OP_TYPE_ENCODE; /* Use "Encode" stats */
+#endif
+
+
+ if (ctx->hw_mode == DRV_CIPHER_XCBC_MAC) {
+ keyLen = CC_AES_128_BIT_KEY_SIZE;
+ ssi_hash_create_xcbc_setup(req, desc, &idx);
+ } else {
+ keyLen = ctx->key_params.keylen;
+ ssi_hash_create_cmac_setup(req, desc, &idx);
+ }
+
+ if (req->nbytes == 0) {
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_CIPHER_MODE(&desc[idx], ctx->hw_mode);
+ HW_DESC_SET_KEY_SIZE_AES(&desc[idx], keyLen);
+ HW_DESC_SET_CMAC_SIZE0_MODE(&desc[idx]);
+ HW_DESC_SET_FLOW_MODE(&desc[idx], S_DIN_to_AES);
+ idx++;
+ } else {
+ ssi_hash_create_data_desc(state, ctx, DIN_AES_DOUT, desc, false, &idx);
+ }
+
+ /* Get final MAC result */
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_DOUT_DLLI(&desc[idx], state->digest_result_dma_addr, CC_AES_BLOCK_SIZE, NS_BIT,1);
+ HW_DESC_SET_QUEUE_LAST_IND(&desc[idx]);
+ HW_DESC_SET_FLOW_MODE(&desc[idx], S_AES_to_DOUT);
+ HW_DESC_SET_SETUP_MODE(&desc[idx], SETUP_WRITE_STATE0);
+ HW_DESC_SET_CIPHER_CONFIG0(&desc[idx],DESC_DIRECTION_ENCRYPT_ENCRYPT);
+ HW_DESC_SET_CIPHER_MODE(&desc[idx], ctx->hw_mode);
+ idx++;
+
+ rc = send_request(ctx->drvdata, &ssi_req, desc, idx, 1);
+ if (unlikely(rc != -EINPROGRESS)) {
+ SSI_LOG_ERR("send_request() failed (rc=%d)\n", rc);
+ ssi_buffer_mgr_unmap_hash_request(dev, state, req->src, true);
+ ssi_hash_unmap_result(dev, state, digestsize, req->result);
+ ssi_hash_unmap_request(dev, state, ctx);
+ }
+ return rc;
+}
+
+//shash wrap functions
+#ifdef SYNC_ALGS
+static int ssi_shash_digest(struct shash_desc *desc,
+ const u8 *data, unsigned int len, u8 *out)
+{
+ struct ahash_req_ctx *state = shash_desc_ctx(desc);
+ struct crypto_shash *tfm = desc->tfm;
+ struct ssi_hash_ctx *ctx = crypto_shash_ctx(tfm);
+ uint32_t digestsize = crypto_shash_digestsize(tfm);
+ struct scatterlist src;
+
+ if (len == 0) {
+ return ssi_hash_digest(state, ctx, digestsize, NULL, 0, out, NULL);
+ }
+
+ /* sg_init_one may crash when len is 0 (depends on kernel configuration) */
+ sg_init_one(&src, (const void *)data, len);
+
+ return ssi_hash_digest(state, ctx, digestsize, &src, len, out, NULL);
+}
+
+static int ssi_shash_update(struct shash_desc *desc,
+ const u8 *data, unsigned int len)
+{
+ struct ahash_req_ctx *state = shash_desc_ctx(desc);
+ struct crypto_shash *tfm = desc->tfm;
+ struct ssi_hash_ctx *ctx = crypto_shash_ctx(tfm);
+ uint32_t blocksize = crypto_tfm_alg_blocksize(&tfm->base);
+ struct scatterlist src;
+
+ sg_init_one(&src, (const void *)data, len);
+
+ return ssi_hash_update(state, ctx, blocksize, &src, len, NULL);
+}
+
+static int ssi_shash_finup(struct shash_desc *desc,
+ const u8 *data, unsigned int len, u8 *out)
+{
+ struct ahash_req_ctx *state = shash_desc_ctx(desc);
+ struct crypto_shash *tfm = desc->tfm;
+ struct ssi_hash_ctx *ctx = crypto_shash_ctx(tfm);
+ uint32_t digestsize = crypto_shash_digestsize(tfm);
+ struct scatterlist src;
+
+ sg_init_one(&src, (const void *)data, len);
+
+ return ssi_hash_finup(state, ctx, digestsize, &src, len, out, NULL);
+}
+
+static int ssi_shash_final(struct shash_desc *desc, u8 *out)
+{
+ struct ahash_req_ctx *state = shash_desc_ctx(desc);
+ struct crypto_shash *tfm = desc->tfm;
+ struct ssi_hash_ctx *ctx = crypto_shash_ctx(tfm);
+ uint32_t digestsize = crypto_shash_digestsize(tfm);
+
+ return ssi_hash_final(state, ctx, digestsize, NULL, 0, out, NULL);
+}
+
+static int ssi_shash_init(struct shash_desc *desc)
+{
+ struct ahash_req_ctx *state = shash_desc_ctx(desc);
+ struct crypto_shash *tfm = desc->tfm;
+ struct ssi_hash_ctx *ctx = crypto_shash_ctx(tfm);
+
+ return ssi_hash_init(state, ctx);
+}
+
+#ifdef EXPORT_FIXED
+static int ssi_shash_export(struct shash_desc *desc, void *out)
+{
+ struct crypto_shash *tfm = desc->tfm;
+ struct ssi_hash_ctx *ctx = crypto_shash_ctx(tfm);
+
+ return ssi_hash_export(ctx, out);
+}
+
+static int ssi_shash_import(struct shash_desc *desc, const void *in)
+{
+ struct crypto_shash *tfm = desc->tfm;
+ struct ssi_hash_ctx *ctx = crypto_shash_ctx(tfm);
+
+ return ssi_hash_import(ctx, in);
+}
+#endif
+
+static int ssi_shash_setkey(struct crypto_shash *tfm,
+ const u8 *key, unsigned int keylen)
+{
+ return ssi_hash_setkey((void *) tfm, key, keylen, true);
+}
+
+#endif /* SYNC_ALGS */
+
+//ahash wrap functions
+static int ssi_ahash_digest(struct ahash_request *req)
+{
+ struct ahash_req_ctx *state = ahash_request_ctx(req);
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct ssi_hash_ctx *ctx = crypto_ahash_ctx(tfm);
+ uint32_t digestsize = crypto_ahash_digestsize(tfm);
+
+ return ssi_hash_digest(state, ctx, digestsize, req->src, req->nbytes, req->result, (void *)req);
+}
+
+static int ssi_ahash_update(struct ahash_request *req)
+{
+ struct ahash_req_ctx *state = ahash_request_ctx(req);
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct ssi_hash_ctx *ctx = crypto_ahash_ctx(tfm);
+ unsigned int block_size = crypto_tfm_alg_blocksize(&tfm->base);
+
+ return ssi_hash_update(state, ctx, block_size, req->src, req->nbytes, (void *)req);
+}
+
+static int ssi_ahash_finup(struct ahash_request *req)
+{
+ struct ahash_req_ctx *state = ahash_request_ctx(req);
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct ssi_hash_ctx *ctx = crypto_ahash_ctx(tfm);
+ uint32_t digestsize = crypto_ahash_digestsize(tfm);
+
+ return ssi_hash_finup(state, ctx, digestsize, req->src, req->nbytes, req->result, (void *)req);
+}
+
+static int ssi_ahash_final(struct ahash_request *req)
+{
+ struct ahash_req_ctx *state = ahash_request_ctx(req);
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct ssi_hash_ctx *ctx = crypto_ahash_ctx(tfm);
+ uint32_t digestsize = crypto_ahash_digestsize(tfm);
+
+ return ssi_hash_final(state, ctx, digestsize, req->src, req->nbytes, req->result, (void *)req);
+}
+
+static int ssi_ahash_init(struct ahash_request *req)
+{
+ struct ahash_req_ctx *state = ahash_request_ctx(req);
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(req);
+ struct ssi_hash_ctx *ctx = crypto_ahash_ctx(tfm);
+
+ SSI_LOG_DEBUG("===== init (%d) ====\n", req->nbytes);
+
+ return ssi_hash_init(state, ctx);
+}
+
+#ifdef EXPORT_FIXED
+static int ssi_ahash_export(struct ahash_request *req, void *out)
+{
+ struct crypto_ahash *ahash = crypto_ahash_reqtfm(req);
+ struct ssi_hash_ctx *ctx = crypto_ahash_ctx(ahash);
+
+ return ssi_hash_export(ctx, out);
+}
+
+static int ssi_ahash_import(struct ahash_request *req, const void *in)
+{
+ struct crypto_ahash *ahash = crypto_ahash_reqtfm(req);
+ struct ssi_hash_ctx *ctx = crypto_ahash_ctx(ahash);
+
+ return ssi_hash_import(ctx, in);
+}
+#endif
+
+static int ssi_ahash_setkey(struct crypto_ahash *ahash,
+ const u8 *key, unsigned int keylen)
+{
+ return ssi_hash_setkey((void *) ahash, key, keylen, false);
+}
+
+struct ssi_hash_template {
+ char name[CRYPTO_MAX_ALG_NAME];
+ char driver_name[CRYPTO_MAX_ALG_NAME];
+ char hmac_name[CRYPTO_MAX_ALG_NAME];
+ char hmac_driver_name[CRYPTO_MAX_ALG_NAME];
+ unsigned int blocksize;
+ bool synchronize;
+ union {
+ struct ahash_alg template_ahash;
+ struct shash_alg template_shash;
+ };
+ int hash_mode;
+ int hw_mode;
+ int inter_digestsize;
+ struct ssi_drvdata *drvdata;
+};
+
+/* hash descriptors */
+static struct ssi_hash_template driver_hash[] = {
+ //Asynchronize hash template
+ {
+ .name = "sha1",
+ .driver_name = "sha1-dx",
+ .hmac_name = "hmac(sha1)",
+ .hmac_driver_name = "hmac-sha1-dx",
+ .blocksize = SHA1_BLOCK_SIZE,
+ .synchronize = false,
+ .template_ahash = {
+ .init = ssi_ahash_init,
+ .update = ssi_ahash_update,
+ .final = ssi_ahash_final,
+ .finup = ssi_ahash_finup,
+ .digest = ssi_ahash_digest,
+#ifdef EXPORT_FIXED
+ .export = ssi_ahash_export,
+ .import = ssi_ahash_import,
+#endif
+ .setkey = ssi_ahash_setkey,
+ .halg = {
+ .digestsize = SHA1_DIGEST_SIZE,
+ .statesize = sizeof(struct sha1_state),
+ },
+ },
+ .hash_mode = DRV_HASH_SHA1,
+ .hw_mode = DRV_HASH_HW_SHA1,
+ .inter_digestsize = SHA1_DIGEST_SIZE,
+ },
+ {
+ .name = "sha256",
+ .driver_name = "sha256-dx",
+ .hmac_name = "hmac(sha256)",
+ .hmac_driver_name = "hmac-sha256-dx",
+ .blocksize = SHA256_BLOCK_SIZE,
+ .synchronize = false,
+ .template_ahash = {
+ .init = ssi_ahash_init,
+ .update = ssi_ahash_update,
+ .final = ssi_ahash_final,
+ .finup = ssi_ahash_finup,
+ .digest = ssi_ahash_digest,
+#ifdef EXPORT_FIXED
+ .export = ssi_ahash_export,
+ .import = ssi_ahash_import,
+#endif
+ .setkey = ssi_ahash_setkey,
+ .halg = {
+ .digestsize = SHA256_DIGEST_SIZE,
+ .statesize = sizeof(struct sha256_state),
+ },
+ },
+ .hash_mode = DRV_HASH_SHA256,
+ .hw_mode = DRV_HASH_HW_SHA256,
+ .inter_digestsize = SHA256_DIGEST_SIZE,
+ },
+ {
+ .name = "sha224",
+ .driver_name = "sha224-dx",
+ .hmac_name = "hmac(sha224)",
+ .hmac_driver_name = "hmac-sha224-dx",
+ .blocksize = SHA224_BLOCK_SIZE,
+ .synchronize = false,
+ .template_ahash = {
+ .init = ssi_ahash_init,
+ .update = ssi_ahash_update,
+ .final = ssi_ahash_final,
+ .finup = ssi_ahash_finup,
+ .digest = ssi_ahash_digest,
+#ifdef EXPORT_FIXED
+ .export = ssi_ahash_export,
+ .import = ssi_ahash_import,
+#endif
+ .setkey = ssi_ahash_setkey,
+ .halg = {
+ .digestsize = SHA224_DIGEST_SIZE,
+ .statesize = sizeof(struct sha256_state),
+ },
+ },
+ .hash_mode = DRV_HASH_SHA224,
+ .hw_mode = DRV_HASH_HW_SHA256,
+ .inter_digestsize = SHA256_DIGEST_SIZE,
+ },
+#if (DX_DEV_SHA_MAX > 256)
+ {
+ .name = "sha384",
+ .driver_name = "sha384-dx",
+ .hmac_name = "hmac(sha384)",
+ .hmac_driver_name = "hmac-sha384-dx",
+ .blocksize = SHA384_BLOCK_SIZE,
+ .synchronize = false,
+ .template_ahash = {
+ .init = ssi_ahash_init,
+ .update = ssi_ahash_update,
+ .final = ssi_ahash_final,
+ .finup = ssi_ahash_finup,
+ .digest = ssi_ahash_digest,
+#ifdef EXPORT_FIXED
+ .export = ssi_ahash_export,
+ .import = ssi_ahash_import,
+#endif
+ .setkey = ssi_ahash_setkey,
+ .halg = {
+ .digestsize = SHA384_DIGEST_SIZE,
+ .statesize = sizeof(struct sha512_state),
+ },
+ },
+ .hash_mode = DRV_HASH_SHA384,
+ .hw_mode = DRV_HASH_HW_SHA512,
+ .inter_digestsize = SHA512_DIGEST_SIZE,
+ },
+ {
+ .name = "sha512",
+ .driver_name = "sha512-dx",
+ .hmac_name = "hmac(sha512)",
+ .hmac_driver_name = "hmac-sha512-dx",
+ .blocksize = SHA512_BLOCK_SIZE,
+ .synchronize = false,
+ .template_ahash = {
+ .init = ssi_ahash_init,
+ .update = ssi_ahash_update,
+ .final = ssi_ahash_final,
+ .finup = ssi_ahash_finup,
+ .digest = ssi_ahash_digest,
+#ifdef EXPORT_FIXED
+ .export = ssi_ahash_export,
+ .import = ssi_ahash_import,
+#endif
+ .setkey = ssi_ahash_setkey,
+ .halg = {
+ .digestsize = SHA512_DIGEST_SIZE,
+ .statesize = sizeof(struct sha512_state),
+ },
+ },
+ .hash_mode = DRV_HASH_SHA512,
+ .hw_mode = DRV_HASH_HW_SHA512,
+ .inter_digestsize = SHA512_DIGEST_SIZE,
+ },
+#endif
+ {
+ .name = "md5",
+ .driver_name = "md5-dx",
+ .hmac_name = "hmac(md5)",
+ .hmac_driver_name = "hmac-md5-dx",
+ .blocksize = MD5_HMAC_BLOCK_SIZE,
+ .synchronize = false,
+ .template_ahash = {
+ .init = ssi_ahash_init,
+ .update = ssi_ahash_update,
+ .final = ssi_ahash_final,
+ .finup = ssi_ahash_finup,
+ .digest = ssi_ahash_digest,
+#ifdef EXPORT_FIXED
+ .export = ssi_ahash_export,
+ .import = ssi_ahash_import,
+#endif
+ .setkey = ssi_ahash_setkey,
+ .halg = {
+ .digestsize = MD5_DIGEST_SIZE,
+ .statesize = sizeof(struct md5_state),
+ },
+ },
+ .hash_mode = DRV_HASH_MD5,
+ .hw_mode = DRV_HASH_HW_MD5,
+ .inter_digestsize = MD5_DIGEST_SIZE,
+ },
+ {
+ .name = "xcbc(aes)",
+ .driver_name = "xcbc-aes-dx",
+ .blocksize = AES_BLOCK_SIZE,
+ .synchronize = false,
+ .template_ahash = {
+ .init = ssi_ahash_init,
+ .update = ssi_mac_update,
+ .final = ssi_mac_final,
+ .finup = ssi_mac_finup,
+ .digest = ssi_mac_digest,
+ .setkey = ssi_xcbc_setkey,
+#ifdef EXPORT_FIXED
+ .export = ssi_ahash_export,
+ .import = ssi_ahash_import,
+#endif
+ .halg = {
+ .digestsize = AES_BLOCK_SIZE,
+ .statesize = sizeof(struct aeshash_state),
+ },
+ },
+ .hash_mode = DRV_HASH_NULL,
+ .hw_mode = DRV_CIPHER_XCBC_MAC,
+ .inter_digestsize = AES_BLOCK_SIZE,
+ },
+#if SSI_CC_HAS_CMAC
+ {
+ .name = "cmac(aes)",
+ .driver_name = "cmac-aes-dx",
+ .blocksize = AES_BLOCK_SIZE,
+ .synchronize = false,
+ .template_ahash = {
+ .init = ssi_ahash_init,
+ .update = ssi_mac_update,
+ .final = ssi_mac_final,
+ .finup = ssi_mac_finup,
+ .digest = ssi_mac_digest,
+ .setkey = ssi_cmac_setkey,
+#ifdef EXPORT_FIXED
+ .export = ssi_ahash_export,
+ .import = ssi_ahash_import,
+#endif
+ .halg = {
+ .digestsize = AES_BLOCK_SIZE,
+ .statesize = sizeof(struct aeshash_state),
+ },
+ },
+ .hash_mode = DRV_HASH_NULL,
+ .hw_mode = DRV_CIPHER_CMAC,
+ .inter_digestsize = AES_BLOCK_SIZE,
+ },
+#endif
+
+};
+
+static struct ssi_hash_alg *
+ssi_hash_create_alg(struct ssi_hash_template *template, bool keyed)
+{
+ struct ssi_hash_alg *t_crypto_alg;
+ struct crypto_alg *alg;
+
+ t_crypto_alg = kzalloc(sizeof(struct ssi_hash_alg), GFP_KERNEL);
+ if (!t_crypto_alg) {
+ SSI_LOG_ERR("failed to allocate t_alg\n");
+ return ERR_PTR(-ENOMEM);
+ }
+
+ t_crypto_alg->synchronize = template->synchronize;
+ if (template->synchronize) {
+ struct shash_alg *halg;
+ t_crypto_alg->shash_alg = template->template_shash;
+ halg = &t_crypto_alg->shash_alg;
+ alg = &halg->base;
+ if (!keyed) halg->setkey = NULL;
+ } else {
+ struct ahash_alg *halg;
+ t_crypto_alg->ahash_alg = template->template_ahash;
+ halg = &t_crypto_alg->ahash_alg;
+ alg = &halg->halg.base;
+ if (!keyed) halg->setkey = NULL;
+ }
+
+ if (keyed) {
+ snprintf(alg->cra_name, CRYPTO_MAX_ALG_NAME, "%s",
+ template->hmac_name);
+ snprintf(alg->cra_driver_name, CRYPTO_MAX_ALG_NAME, "%s",
+ template->hmac_driver_name);
+ } else {
+ snprintf(alg->cra_name, CRYPTO_MAX_ALG_NAME, "%s",
+ template->name);
+ snprintf(alg->cra_driver_name, CRYPTO_MAX_ALG_NAME, "%s",
+ template->driver_name);
+ }
+ alg->cra_module = THIS_MODULE;
+ alg->cra_ctxsize = sizeof(struct ssi_hash_ctx);
+ alg->cra_priority = SSI_CRA_PRIO;
+ alg->cra_blocksize = template->blocksize;
+ alg->cra_alignmask = 0;
+ alg->cra_exit = ssi_hash_cra_exit;
+
+ if (template->synchronize) {
+ alg->cra_init = ssi_shash_cra_init;
+ alg->cra_flags = CRYPTO_ALG_TYPE_SHASH |
+ CRYPTO_ALG_KERN_DRIVER_ONLY;
+ alg->cra_type = &crypto_shash_type;
+ } else {
+ alg->cra_init = ssi_ahash_cra_init;
+ alg->cra_flags = CRYPTO_ALG_ASYNC | CRYPTO_ALG_TYPE_AHASH |
+ CRYPTO_ALG_KERN_DRIVER_ONLY;
+ alg->cra_type = &crypto_ahash_type;
+ }
+
+ t_crypto_alg->hash_mode = template->hash_mode;
+ t_crypto_alg->hw_mode = template->hw_mode;
+ t_crypto_alg->inter_digestsize = template->inter_digestsize;
+
+ return t_crypto_alg;
+}
+
+int ssi_hash_init_sram_digest_consts(struct ssi_drvdata *drvdata)
+{
+ struct ssi_hash_handle *hash_handle = drvdata->hash_handle;
+ ssi_sram_addr_t sram_buff_ofs = hash_handle->digest_len_sram_addr;
+ unsigned int larval_seq_len = 0;
+ HwDesc_s larval_seq[CC_DIGEST_SIZE_MAX/sizeof(uint32_t)];
+ int rc = 0;
+#if (DX_DEV_SHA_MAX > 256)
+ int i;
+#endif
+
+ /* Copy-to-sram digest-len */
+ ssi_sram_mgr_const2sram_desc(digest_len_init, sram_buff_ofs,
+ ARRAY_SIZE(digest_len_init), larval_seq, &larval_seq_len);
+ rc = send_request_init(drvdata, larval_seq, larval_seq_len);
+ if (unlikely(rc != 0))
+ goto init_digest_const_err;
+
+ sram_buff_ofs += sizeof(digest_len_init);
+ larval_seq_len = 0;
+
+#if (DX_DEV_SHA_MAX > 256)
+ /* Copy-to-sram digest-len for sha384/512 */
+ ssi_sram_mgr_const2sram_desc(digest_len_sha512_init, sram_buff_ofs,
+ ARRAY_SIZE(digest_len_sha512_init), larval_seq, &larval_seq_len);
+ rc = send_request_init(drvdata, larval_seq, larval_seq_len);
+ if (unlikely(rc != 0))
+ goto init_digest_const_err;
+
+ sram_buff_ofs += sizeof(digest_len_sha512_init);
+ larval_seq_len = 0;
+#endif
+
+ /* The initial digests offset */
+ hash_handle->larval_digest_sram_addr = sram_buff_ofs;
+
+ /* Copy-to-sram initial SHA* digests */
+ ssi_sram_mgr_const2sram_desc(md5_init, sram_buff_ofs,
+ ARRAY_SIZE(md5_init), larval_seq, &larval_seq_len);
+ rc = send_request_init(drvdata, larval_seq, larval_seq_len);
+ if (unlikely(rc != 0))
+ goto init_digest_const_err;
+ sram_buff_ofs += sizeof(md5_init);
+ larval_seq_len = 0;
+
+ ssi_sram_mgr_const2sram_desc(sha1_init, sram_buff_ofs,
+ ARRAY_SIZE(sha1_init), larval_seq, &larval_seq_len);
+ rc = send_request_init(drvdata, larval_seq, larval_seq_len);
+ if (unlikely(rc != 0))
+ goto init_digest_const_err;
+ sram_buff_ofs += sizeof(sha1_init);
+ larval_seq_len = 0;
+
+ ssi_sram_mgr_const2sram_desc(sha224_init, sram_buff_ofs,
+ ARRAY_SIZE(sha224_init), larval_seq, &larval_seq_len);
+ rc = send_request_init(drvdata, larval_seq, larval_seq_len);
+ if (unlikely(rc != 0))
+ goto init_digest_const_err;
+ sram_buff_ofs += sizeof(sha224_init);
+ larval_seq_len = 0;
+
+ ssi_sram_mgr_const2sram_desc(sha256_init, sram_buff_ofs,
+ ARRAY_SIZE(sha256_init), larval_seq, &larval_seq_len);
+ rc = send_request_init(drvdata, larval_seq, larval_seq_len);
+ if (unlikely(rc != 0))
+ goto init_digest_const_err;
+ sram_buff_ofs += sizeof(sha256_init);
+ larval_seq_len = 0;
+
+#if (DX_DEV_SHA_MAX > 256)
+ /* We are forced to swap each double-word larval before copying to sram */
+ for (i = 0; i < ARRAY_SIZE(sha384_init); i++) {
+ const uint32_t const0 = ((uint32_t *)((uint64_t *)&sha384_init[i]))[1];
+ const uint32_t const1 = ((uint32_t *)((uint64_t *)&sha384_init[i]))[0];
+
+ ssi_sram_mgr_const2sram_desc(&const0, sram_buff_ofs, 1,
+ larval_seq, &larval_seq_len);
+ sram_buff_ofs += sizeof(uint32_t);
+ ssi_sram_mgr_const2sram_desc(&const1, sram_buff_ofs, 1,
+ larval_seq, &larval_seq_len);
+ sram_buff_ofs += sizeof(uint32_t);
+ }
+ rc = send_request_init(drvdata, larval_seq, larval_seq_len);
+ if (unlikely(rc != 0)) {
+ SSI_LOG_ERR("send_request() failed (rc = %d)\n", rc);
+ goto init_digest_const_err;
+ }
+ larval_seq_len = 0;
+
+ for (i = 0; i < ARRAY_SIZE(sha512_init); i++) {
+ const uint32_t const0 = ((uint32_t *)((uint64_t *)&sha512_init[i]))[1];
+ const uint32_t const1 = ((uint32_t *)((uint64_t *)&sha512_init[i]))[0];
+
+ ssi_sram_mgr_const2sram_desc(&const0, sram_buff_ofs, 1,
+ larval_seq, &larval_seq_len);
+ sram_buff_ofs += sizeof(uint32_t);
+ ssi_sram_mgr_const2sram_desc(&const1, sram_buff_ofs, 1,
+ larval_seq, &larval_seq_len);
+ sram_buff_ofs += sizeof(uint32_t);
+ }
+ rc = send_request_init(drvdata, larval_seq, larval_seq_len);
+ if (unlikely(rc != 0)) {
+ SSI_LOG_ERR("send_request() failed (rc = %d)\n", rc);
+ goto init_digest_const_err;
+ }
+#endif
+
+init_digest_const_err:
+ return rc;
+}
+
+int ssi_hash_alloc(struct ssi_drvdata *drvdata)
+{
+ struct ssi_hash_handle *hash_handle;
+ ssi_sram_addr_t sram_buff;
+ uint32_t sram_size_to_alloc;
+ int rc = 0;
+ int alg;
+
+ hash_handle = kzalloc(sizeof(struct ssi_hash_handle), GFP_KERNEL);
+ if (hash_handle == NULL) {
+ SSI_LOG_ERR("kzalloc failed to allocate %zu B\n",
+ sizeof(struct ssi_hash_handle));
+ rc = -ENOMEM;
+ goto fail;
+ }
+
+ drvdata->hash_handle = hash_handle;
+
+ sram_size_to_alloc = sizeof(digest_len_init) +
+#if (DX_DEV_SHA_MAX > 256)
+ sizeof(digest_len_sha512_init) +
+ sizeof(sha384_init) +
+ sizeof(sha512_init) +
+#endif
+ sizeof(md5_init) +
+ sizeof(sha1_init) +
+ sizeof(sha224_init) +
+ sizeof(sha256_init);
+
+ sram_buff = ssi_sram_mgr_alloc(drvdata, sram_size_to_alloc);
+ if (sram_buff == NULL_SRAM_ADDR) {
+ SSI_LOG_ERR("SRAM pool exhausted\n");
+ rc = -ENOMEM;
+ goto fail;
+ }
+
+ /* The initial digest-len offset */
+ hash_handle->digest_len_sram_addr = sram_buff;
+
+ /*must be set before the alg registration as it is being used there*/
+ rc = ssi_hash_init_sram_digest_consts(drvdata);
+ if (unlikely(rc != 0)) {
+ SSI_LOG_ERR("Init digest CONST failed (rc=%d)\n", rc);
+ goto fail;
+ }
+
+ INIT_LIST_HEAD(&hash_handle->hash_list);
+
+ /* ahash registration */
+ for (alg = 0; alg < ARRAY_SIZE(driver_hash); alg++) {
+ struct ssi_hash_alg *t_alg;
+
+ /* register hmac version */
+
+ if ((((struct ssi_hash_template)driver_hash[alg]).hw_mode != DRV_CIPHER_XCBC_MAC) &&
+ (((struct ssi_hash_template)driver_hash[alg]).hw_mode != DRV_CIPHER_CMAC)) {
+ t_alg = ssi_hash_create_alg(&driver_hash[alg], true);
+ if (IS_ERR(t_alg)) {
+ rc = PTR_ERR(t_alg);
+ SSI_LOG_ERR("%s alg allocation failed\n",
+ driver_hash[alg].driver_name);
+ goto fail;
+ }
+ t_alg->drvdata = drvdata;
+
+ if (t_alg->synchronize) {
+ rc = crypto_register_shash(&t_alg->shash_alg);
+ if (unlikely(rc != 0)) {
+ SSI_LOG_ERR("%s alg registration failed\n",
+ t_alg->shash_alg.base.cra_driver_name);
+ kfree(t_alg);
+ goto fail;
+ } else
+ list_add_tail(&t_alg->entry, &hash_handle->hash_list);
+ } else {
+ rc = crypto_register_ahash(&t_alg->ahash_alg);
+ if (unlikely(rc != 0)) {
+ SSI_LOG_ERR("%s alg registration failed\n",
+ t_alg->ahash_alg.halg.base.cra_driver_name);
+ kfree(t_alg);
+ goto fail;
+ } else
+ list_add_tail(&t_alg->entry, &hash_handle->hash_list);
+ }
+ }
+
+ /* register hash version */
+ t_alg = ssi_hash_create_alg(&driver_hash[alg], false);
+ if (IS_ERR(t_alg)) {
+ rc = PTR_ERR(t_alg);
+ SSI_LOG_ERR("%s alg allocation failed\n",
+ driver_hash[alg].driver_name);
+ goto fail;
+ }
+ t_alg->drvdata = drvdata;
+
+ if (t_alg->synchronize) {
+ rc = crypto_register_shash(&t_alg->shash_alg);
+ if (unlikely(rc != 0)) {
+ SSI_LOG_ERR("%s alg registration failed\n",
+ t_alg->shash_alg.base.cra_driver_name);
+ kfree(t_alg);
+ goto fail;
+ } else
+ list_add_tail(&t_alg->entry, &hash_handle->hash_list);
+
+ } else {
+ rc = crypto_register_ahash(&t_alg->ahash_alg);
+ if (unlikely(rc != 0)) {
+ SSI_LOG_ERR("%s alg registration failed\n",
+ t_alg->ahash_alg.halg.base.cra_driver_name);
+ kfree(t_alg);
+ goto fail;
+ } else
+ list_add_tail(&t_alg->entry, &hash_handle->hash_list);
+ }
+ }
+
+ return 0;
+
+fail:
+
+ if (drvdata->hash_handle != NULL) {
+ kfree(drvdata->hash_handle);
+ drvdata->hash_handle = NULL;
+ }
+ return rc;
+}
+
+int ssi_hash_free(struct ssi_drvdata *drvdata)
+{
+ struct ssi_hash_alg *t_hash_alg, *hash_n;
+ struct ssi_hash_handle *hash_handle = drvdata->hash_handle;
+
+ if (hash_handle != NULL) {
+
+ list_for_each_entry_safe(t_hash_alg, hash_n, &hash_handle->hash_list, entry) {
+ if (t_hash_alg->synchronize) {
+ crypto_unregister_shash(&t_hash_alg->shash_alg);
+ } else {
+ crypto_unregister_ahash(&t_hash_alg->ahash_alg);
+ }
+ list_del(&t_hash_alg->entry);
+ kfree(t_hash_alg);
+ }
+
+ kfree(hash_handle);
+ drvdata->hash_handle = NULL;
+ }
+ return 0;
+}
+
+static void ssi_hash_create_xcbc_setup(struct ahash_request *areq,
+ HwDesc_s desc[],
+ unsigned int *seq_size) {
+ unsigned int idx = *seq_size;
+ struct ahash_req_ctx *state = ahash_request_ctx(areq);
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq);
+ struct ssi_hash_ctx *ctx = crypto_ahash_ctx(tfm);
+
+ /* Setup XCBC MAC K1 */
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_DIN_TYPE(&desc[idx], DMA_DLLI, (ctx->opad_tmp_keys_dma_addr
+ + XCBC_MAC_K1_OFFSET),
+ CC_AES_128_BIT_KEY_SIZE, NS_BIT);
+ HW_DESC_SET_SETUP_MODE(&desc[idx], SETUP_LOAD_KEY0);
+ HW_DESC_SET_CIPHER_MODE(&desc[idx], DRV_CIPHER_XCBC_MAC);
+ HW_DESC_SET_CIPHER_CONFIG0(&desc[idx], DESC_DIRECTION_ENCRYPT_ENCRYPT);
+ HW_DESC_SET_KEY_SIZE_AES(&desc[idx], CC_AES_128_BIT_KEY_SIZE);
+ HW_DESC_SET_FLOW_MODE(&desc[idx], S_DIN_to_AES);
+ idx++;
+
+ /* Setup XCBC MAC K2 */
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_DIN_TYPE(&desc[idx], DMA_DLLI, (ctx->opad_tmp_keys_dma_addr
+ + XCBC_MAC_K2_OFFSET),
+ CC_AES_128_BIT_KEY_SIZE, NS_BIT);
+ HW_DESC_SET_SETUP_MODE(&desc[idx], SETUP_LOAD_STATE1);
+ HW_DESC_SET_CIPHER_MODE(&desc[idx], DRV_CIPHER_XCBC_MAC);
+ HW_DESC_SET_CIPHER_CONFIG0(&desc[idx], DESC_DIRECTION_ENCRYPT_ENCRYPT);
+ HW_DESC_SET_KEY_SIZE_AES(&desc[idx], CC_AES_128_BIT_KEY_SIZE);
+ HW_DESC_SET_FLOW_MODE(&desc[idx], S_DIN_to_AES);
+ idx++;
+
+ /* Setup XCBC MAC K3 */
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_DIN_TYPE(&desc[idx], DMA_DLLI, (ctx->opad_tmp_keys_dma_addr
+ + XCBC_MAC_K3_OFFSET),
+ CC_AES_128_BIT_KEY_SIZE, NS_BIT);
+ HW_DESC_SET_SETUP_MODE(&desc[idx], SETUP_LOAD_STATE2);
+ HW_DESC_SET_CIPHER_MODE(&desc[idx], DRV_CIPHER_XCBC_MAC);
+ HW_DESC_SET_CIPHER_CONFIG0(&desc[idx], DESC_DIRECTION_ENCRYPT_ENCRYPT);
+ HW_DESC_SET_KEY_SIZE_AES(&desc[idx], CC_AES_128_BIT_KEY_SIZE);
+ HW_DESC_SET_FLOW_MODE(&desc[idx], S_DIN_to_AES);
+ idx++;
+
+ /* Loading MAC state */
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_DIN_TYPE(&desc[idx], DMA_DLLI, state->digest_buff_dma_addr, CC_AES_BLOCK_SIZE, NS_BIT);
+ HW_DESC_SET_SETUP_MODE(&desc[idx], SETUP_LOAD_STATE0);
+ HW_DESC_SET_CIPHER_MODE(&desc[idx], DRV_CIPHER_XCBC_MAC);
+ HW_DESC_SET_CIPHER_CONFIG0(&desc[idx], DESC_DIRECTION_ENCRYPT_ENCRYPT);
+ HW_DESC_SET_KEY_SIZE_AES(&desc[idx], CC_AES_128_BIT_KEY_SIZE);
+ HW_DESC_SET_FLOW_MODE(&desc[idx], S_DIN_to_AES);
+ idx++;
+ *seq_size = idx;
+}
+
+static void ssi_hash_create_cmac_setup(struct ahash_request *areq,
+ HwDesc_s desc[],
+ unsigned int *seq_size)
+{
+ unsigned int idx = *seq_size;
+ struct ahash_req_ctx *state = ahash_request_ctx(areq);
+ struct crypto_ahash *tfm = crypto_ahash_reqtfm(areq);
+ struct ssi_hash_ctx *ctx = crypto_ahash_ctx(tfm);
+
+ /* Setup CMAC Key */
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_DIN_TYPE(&desc[idx], DMA_DLLI, ctx->opad_tmp_keys_dma_addr,
+ ((ctx->key_params.keylen == 24) ? AES_MAX_KEY_SIZE : ctx->key_params.keylen), NS_BIT);
+ HW_DESC_SET_SETUP_MODE(&desc[idx], SETUP_LOAD_KEY0);
+ HW_DESC_SET_CIPHER_MODE(&desc[idx], DRV_CIPHER_CMAC);
+ HW_DESC_SET_CIPHER_CONFIG0(&desc[idx], DESC_DIRECTION_ENCRYPT_ENCRYPT);
+ HW_DESC_SET_KEY_SIZE_AES(&desc[idx], ctx->key_params.keylen);
+ HW_DESC_SET_FLOW_MODE(&desc[idx], S_DIN_to_AES);
+ idx++;
+
+ /* Load MAC state */
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_DIN_TYPE(&desc[idx], DMA_DLLI, state->digest_buff_dma_addr, CC_AES_BLOCK_SIZE, NS_BIT);
+ HW_DESC_SET_SETUP_MODE(&desc[idx], SETUP_LOAD_STATE0);
+ HW_DESC_SET_CIPHER_MODE(&desc[idx], DRV_CIPHER_CMAC);
+ HW_DESC_SET_CIPHER_CONFIG0(&desc[idx], DESC_DIRECTION_ENCRYPT_ENCRYPT);
+ HW_DESC_SET_KEY_SIZE_AES(&desc[idx], ctx->key_params.keylen);
+ HW_DESC_SET_FLOW_MODE(&desc[idx], S_DIN_to_AES);
+ idx++;
+ *seq_size = idx;
+}
+
+static void ssi_hash_create_data_desc(struct ahash_req_ctx *areq_ctx,
+ struct ssi_hash_ctx *ctx,
+ unsigned int flow_mode,
+ HwDesc_s desc[],
+ bool is_not_last_data,
+ unsigned int *seq_size)
+{
+ unsigned int idx = *seq_size;
+
+ if (likely(areq_ctx->data_dma_buf_type == SSI_DMA_BUF_DLLI)) {
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_DIN_TYPE(&desc[idx], DMA_DLLI,
+ sg_dma_address(areq_ctx->curr_sg),
+ areq_ctx->curr_sg->length, NS_BIT);
+ HW_DESC_SET_FLOW_MODE(&desc[idx], flow_mode);
+ idx++;
+ } else {
+ if (areq_ctx->data_dma_buf_type == SSI_DMA_BUF_NULL) {
+ SSI_LOG_DEBUG(" NULL mode\n");
+ /* nothing to build */
+ return;
+ }
+ /* bypass */
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_DIN_TYPE(&desc[idx], DMA_DLLI,
+ areq_ctx->mlli_params.mlli_dma_addr,
+ areq_ctx->mlli_params.mlli_len,
+ NS_BIT);
+ HW_DESC_SET_DOUT_SRAM(&desc[idx],
+ ctx->drvdata->mlli_sram_addr,
+ areq_ctx->mlli_params.mlli_len);
+ HW_DESC_SET_FLOW_MODE(&desc[idx], BYPASS);
+ idx++;
+ /* process */
+ HW_DESC_INIT(&desc[idx]);
+ HW_DESC_SET_DIN_TYPE(&desc[idx], DMA_MLLI,
+ ctx->drvdata->mlli_sram_addr,
+ areq_ctx->mlli_nents,
+ NS_BIT);
+ HW_DESC_SET_FLOW_MODE(&desc[idx], flow_mode);
+ idx++;
+ }
+ if (is_not_last_data) {
+ HW_DESC_SET_DIN_NOT_LAST_INDICATION(&desc[idx-1]);
+ }
+ /* return updated desc sequence size */
+ *seq_size = idx;
+}
+
+/*!
+ * Gets the address of the initial digest in SRAM
+ * according to the given hash mode
+ *
+ * \param drvdata
+ * \param mode The Hash mode. Supported modes: MD5/SHA1/SHA224/SHA256
+ *
+ * \return uint32_t The address of the inital digest in SRAM
+ */
+ssi_sram_addr_t ssi_ahash_get_larval_digest_sram_addr(void *drvdata, uint32_t mode)
+{
+ struct ssi_drvdata *_drvdata = (struct ssi_drvdata *)drvdata;
+ struct ssi_hash_handle *hash_handle = _drvdata->hash_handle;
+
+ switch (mode) {
+ case DRV_HASH_NULL:
+ break; /*Ignore*/
+ case DRV_HASH_MD5:
+ return (hash_handle->larval_digest_sram_addr);
+ case DRV_HASH_SHA1:
+ return (hash_handle->larval_digest_sram_addr +
+ sizeof(md5_init));
+ case DRV_HASH_SHA224:
+ return (hash_handle->larval_digest_sram_addr +
+ sizeof(md5_init) +
+ sizeof(sha1_init));
+ case DRV_HASH_SHA256:
+ return (hash_handle->larval_digest_sram_addr +
+ sizeof(md5_init) +
+ sizeof(sha1_init) +
+ sizeof(sha224_init));
+#if (DX_DEV_SHA_MAX > 256)
+ case DRV_HASH_SHA384:
+ return (hash_handle->larval_digest_sram_addr +
+ sizeof(md5_init) +
+ sizeof(sha1_init) +
+ sizeof(sha224_init) +
+ sizeof(sha256_init));
+ case DRV_HASH_SHA512:
+ return (hash_handle->larval_digest_sram_addr +
+ sizeof(md5_init) +
+ sizeof(sha1_init) +
+ sizeof(sha224_init) +
+ sizeof(sha256_init) +
+ sizeof(sha384_init));
+#endif
+ default:
+ SSI_LOG_ERR("Invalid hash mode (%d)\n", mode);
+ }
+
+ /*This is valid wrong value to avoid kernel crash*/
+ return hash_handle->larval_digest_sram_addr;
+}
+
+ssi_sram_addr_t
+ssi_ahash_get_initial_digest_len_sram_addr(void *drvdata, uint32_t mode)
+{
+ struct ssi_drvdata *_drvdata = (struct ssi_drvdata *)drvdata;
+ struct ssi_hash_handle *hash_handle = _drvdata->hash_handle;
+ ssi_sram_addr_t digest_len_addr = hash_handle->digest_len_sram_addr;
+
+ switch (mode) {
+ case DRV_HASH_SHA1:
+ case DRV_HASH_SHA224:
+ case DRV_HASH_SHA256:
+ case DRV_HASH_MD5:
+ return digest_len_addr;
+#if (DX_DEV_SHA_MAX > 256)
+ case DRV_HASH_SHA384:
+ case DRV_HASH_SHA512:
+ return digest_len_addr + sizeof(digest_len_init);
+#endif
+ default:
+ return digest_len_addr; /*to avoid kernel crash*/
+ }
+}
+
diff --git a/drivers/staging/ccree/ssi_hash.h b/drivers/staging/ccree/ssi_hash.h
new file mode 100644
index 0000000..f736e2b
--- /dev/null
+++ b/drivers/staging/ccree/ssi_hash.h
@@ -0,0 +1,101 @@
+/*
+ * Copyright (C) 2012-2016 ARM Limited or its affiliates.
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ * This program is distributed in the hope that it will be useful, but
+ * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
+ * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
+ * for more details.
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation,
+ * Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
+ */
+
+/* \file ssi_hash.h
+ ARM CryptoCell Hash Crypto API
+ */
+
+#ifndef __SSI_HASH_H__
+#define __SSI_HASH_H__
+
+#include "ssi_buffer_mgr.h"
+
+#define HMAC_IPAD_CONST 0x36363636
+#define HMAC_OPAD_CONST 0x5C5C5C5C
+#if (DX_DEV_SHA_MAX > 256)
+#define HASH_LEN_SIZE 16
+#define SSI_MAX_HASH_DIGEST_SIZE SHA512_DIGEST_SIZE
+#define SSI_MAX_HASH_BLCK_SIZE SHA512_BLOCK_SIZE
+#else
+#define HASH_LEN_SIZE 8
+#define SSI_MAX_HASH_DIGEST_SIZE SHA256_DIGEST_SIZE
+#define SSI_MAX_HASH_BLCK_SIZE SHA256_BLOCK_SIZE
+#endif
+
+#define XCBC_MAC_K1_OFFSET 0
+#define XCBC_MAC_K2_OFFSET 16
+#define XCBC_MAC_K3_OFFSET 32
+
+// this struct was taken from drivers/crypto/nx/nx-aes-xcbc.c and it is used for xcbc/cmac statesize
+struct aeshash_state {
+ u8 state[AES_BLOCK_SIZE];
+ unsigned int count;
+ u8 buffer[AES_BLOCK_SIZE];
+};
+
+/* ahash state */
+struct ahash_req_ctx {
+ uint8_t* buff0;
+ uint8_t* buff1;
+ uint8_t* digest_result_buff;
+ struct async_gen_req_ctx gen_ctx;
+ enum ssi_req_dma_buf_type data_dma_buf_type;
+ uint8_t *digest_buff;
+ uint8_t *opad_digest_buff;
+ uint8_t *digest_bytes_len;
+ dma_addr_t opad_digest_dma_addr;
+ dma_addr_t digest_buff_dma_addr;
+ dma_addr_t digest_bytes_len_dma_addr;
+ dma_addr_t digest_result_dma_addr;
+ uint32_t buff0_cnt;
+ uint32_t buff1_cnt;
+ uint32_t buff_index;
+ uint32_t xcbc_count; /* count xcbc update operatations */
+ struct scatterlist buff_sg[2];
+ struct scatterlist *curr_sg;
+ uint32_t in_nents;
+ uint32_t mlli_nents;
+ struct mlli_params mlli_params;
+};
+
+int ssi_hash_alloc(struct ssi_drvdata *drvdata);
+int ssi_hash_init_sram_digest_consts(struct ssi_drvdata *drvdata);
+int ssi_hash_free(struct ssi_drvdata *drvdata);
+
+/*!
+ * Gets the initial digest length
+ *
+ * \param drvdata
+ * \param mode The Hash mode. Supported modes: MD5/SHA1/SHA224/SHA256/SHA384/SHA512
+ *
+ * \return uint32_t returns the address of the initial digest length in SRAM
+ */
+ssi_sram_addr_t
+ssi_ahash_get_initial_digest_len_sram_addr(void *drvdata, uint32_t mode);
+
+/*!
+ * Gets the address of the initial digest in SRAM
+ * according to the given hash mode
+ *
+ * \param drvdata
+ * \param mode The Hash mode. Supported modes: MD5/SHA1/SHA224/SHA256/SHA384/SHA512
+ *
+ * \return uint32_t The address of the inital digest in SRAM
+ */
+ssi_sram_addr_t ssi_ahash_get_larval_digest_sram_addr(void *drvdata, uint32_t mode);
+
+#endif /*__SSI_HASH_H__*/
+
diff --git a/drivers/staging/ccree/ssi_pm.c b/drivers/staging/ccree/ssi_pm.c
index 8ee481b..da5f2d5 100644
--- a/drivers/staging/ccree/ssi_pm.c
+++ b/drivers/staging/ccree/ssi_pm.c
@@ -26,6 +26,7 @@
#include "ssi_request_mgr.h"
#include "ssi_sram_mgr.h"
#include "ssi_sysfs.h"
+#include "ssi_hash.h"
#include "ssi_pm.h"
#include "ssi_pm_ext.h"
@@ -79,6 +80,9 @@ int ssi_power_mgr_runtime_resume(struct device *dev)
return rc;
}
+ /* must be after the queue resuming as it uses the HW queue*/
+ ssi_hash_init_sram_digest_consts(drvdata);
+
return 0;
}
--
2.1.4
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