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aes/sha: use a shared lazy allocated GDMA channel for AES and SHA

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Removed the old dynamically allocated GDMA channel approach.
It proved too unreliable as we couldn't not ensure consumers of the mbedtls
would properly free the channels after use.

Replaced by a single shared GDMA channel for AES and SHA, which won't be
released unless user specifically calls API for releasing it.
This commit is contained in:
Marius Vikhammer
2021-02-25 15:06:41 +08:00
parent d4263c2558
commit 1c8fd4041e
19 changed files with 401 additions and 434 deletions
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4
components/mbedtls/port/aes/dma/esp_aes.c
View File

@@ -54,8 +54,8 @@
#endif
#if SOC_AES_GDMA
#define AES_LOCK() esp_crypto_aes_lock_acquire()
#define AES_RELEASE() esp_crypto_aes_lock_release()
#define AES_LOCK() esp_crypto_sha_aes_lock_acquire()
#define AES_RELEASE() esp_crypto_sha_aes_lock_release()
#elif SOC_AES_CRYPTO_DMA
#define AES_LOCK() esp_crypto_dma_lock_acquire()
#define AES_RELEASE() esp_crypto_dma_lock_release()

147
components/mbedtls/port/aes/dma/esp_aes_gdma_impl.c
View File

@@ -11,157 +11,16 @@
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "esp_aes_dma_priv.h"
#include <sys/lock.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "driver/periph_ctrl.h"
#include "hal/gdma_ll.h"
#include "soc/soc_caps.h"
#include "esp_private/gdma.h"
#include "esp_log.h"
#define NEW_CHANNEL_TIMEOUT_MS 1000
#define NEW_CHANNEL_DELAY_MS 100
static const char *TAG = "esp_aes_gdma";
static _lock_t gdma_ch_lock;
/* For GDMA we allocate and reserve a single DMA pair for AES at esp_aes_init
and release it esp_aes_free
This is done to avoid the GDMA associated overhead when doing multiple AES transforms in a row.
The channel is shared between any AES operations that are running in parallel,
access will be limited by the peripheral lock
*/
static uint8_t ref_counts;
/* The GDMA channel is protected from concurrent access by the general AES peripheral lock */
static gdma_channel_handle_t tx_channel;
static gdma_channel_handle_t rx_channel;
/* Allocate a new GDMA channel, will keep trying until NEW_CHANNEL_TIMEOUT_MS */
static inline esp_err_t esp_aes_gdma_new_channel(gdma_channel_alloc_config_t *channel_config, gdma_channel_handle_t *channel)
{
esp_err_t ret;
int time_waited_ms = 0;
while(1) {
ret = gdma_new_channel(channel_config, channel);
if (ret == ESP_OK) {
break;
} else if (time_waited_ms >= NEW_CHANNEL_TIMEOUT_MS) {
*channel = NULL;
break;
}
time_waited_ms += NEW_CHANNEL_DELAY_MS;
vTaskDelay(NEW_CHANNEL_DELAY_MS / portTICK_PERIOD_MS);
}
return ret;
}
/* Initialize GDMA module and channels */
static inline void esp_aes_gdma_init(void)
{
esp_err_t ret;
gdma_channel_alloc_config_t channel_config = {
.direction = GDMA_CHANNEL_DIRECTION_TX,
};
ret = esp_aes_gdma_new_channel(&channel_config, &tx_channel);
if (ret != ESP_OK) {
goto err;
}
channel_config.direction = GDMA_CHANNEL_DIRECTION_RX;
ret = esp_aes_gdma_new_channel(&channel_config, &rx_channel);
if (ret != ESP_OK) {
gdma_del_channel(tx_channel); // Clean up already allocated TX channel
goto err;
}
gdma_connect(tx_channel, GDMA_MAKE_TRIGGER(GDMA_TRIG_PERIPH_AES, 0));
gdma_connect(rx_channel, GDMA_MAKE_TRIGGER(GDMA_TRIG_PERIPH_AES, 0));
return;
err:
/* mbedtls_aes_init do not have a way of signaling errors to the caller
so we set the channel to NULL and detect it in esp_aes_dma_start */
ESP_LOGE(TAG, "Failed to acquire DMA channel, Err=0x%X", ret);
tx_channel = NULL;
rx_channel = NULL;
}
void esp_aes_dma_init()
{
_lock_acquire(&gdma_ch_lock);
if (ref_counts == 0) {
esp_aes_gdma_init();
}
ref_counts++;
_lock_release(&gdma_ch_lock);
}
static inline void esp_aes_gdma_free(void)
{
gdma_disconnect(tx_channel);
gdma_disconnect(rx_channel);
gdma_del_channel(tx_channel);
gdma_del_channel(rx_channel);
tx_channel = NULL;
rx_channel = NULL;
}
void esp_aes_dma_free()
{
_lock_acquire(&gdma_ch_lock);
ref_counts--;
if (ref_counts == 0) {
esp_aes_gdma_free();
}
_lock_release(&gdma_ch_lock);
}
#include "esp_crypto_shared_gdma.h"
esp_err_t esp_aes_dma_start(const lldesc_t *input, const lldesc_t *output)
{
#if SOC_GDMA_SUPPORT_EXTMEM
int tx_ch_id = 0;
int rx_ch_id = 0;
#endif //SOC_GDMA_SUPPORT_EXTMEM
if (!tx_channel || !rx_channel) {
/* Will happen if no channel was acquired before timeout */
return ESP_FAIL;
}
#if SOC_GDMA_SUPPORT_EXTMEM
gdma_get_channel_id(tx_channel, &tx_ch_id);
gdma_get_channel_id(rx_channel, &rx_ch_id);
/* An L2 FIFO bigger than 40 bytes is need when accessing external ram */
gdma_ll_tx_extend_fifo_size_to(&GDMA, tx_ch_id, 40);
gdma_ll_rx_extend_l2_fifo_size_to(&GDMA, rx_ch_id, 40);
gdma_ll_tx_set_block_size_psram(&GDMA, tx_ch_id, GDMA_OUT_EXT_MEM_BK_SIZE_16B);
gdma_ll_rx_set_block_size_psram(&GDMA, rx_ch_id, GDMA_OUT_EXT_MEM_BK_SIZE_16B);
#endif //SOC_GDMA_SUPPORT_EXTMEM
gdma_start(tx_channel, (intptr_t)input);
gdma_start(rx_channel, (intptr_t)output);
return ESP_OK;
return esp_crypto_shared_gdma_start(input, output, GDMA_TRIG_PERIPH_AES);
}
bool esp_aes_dma_done(const lldesc_t *output)
{
return (output->owner == 0);

21
components/mbedtls/port/aes/dma/include/esp_aes_dma_priv.h
View File

@@ -22,27 +22,6 @@
extern "C" {
#endif
#if SOC_AES_GDMA
/**
* @brief Initialize the GDMA channel
*
* @note Allocate and initialize a DMA channel (rx and tx) for the AES peripheral
* Only one channel will be initialized at any given time. If two or more AES operations are
* run in parallel the channel will be shared sequentially.
*
*/
void esp_aes_dma_init(void);
/**
* @brief Free the GDMA channel
*
* @note The channel will only be freed if there are no other AES operations currently using it
*
*/
void esp_aes_dma_free(void);
#endif //SOC_AES_GDMA
/**
* @brief Start the DMA engine
*

8
components/mbedtls/port/aes/esp_aes_common.c
View File

@@ -54,10 +54,6 @@ bool valid_key_length(const esp_aes_context *ctx)
void esp_aes_init( esp_aes_context *ctx )
{
bzero( ctx, sizeof( esp_aes_context ) );
#if SOC_AES_GDMA
esp_aes_dma_init();
#endif
}
void esp_aes_free( esp_aes_context *ctx )
@@ -66,10 +62,6 @@ void esp_aes_free( esp_aes_context *ctx )
return;
}
#if SOC_AES_GDMA
esp_aes_dma_free();
#endif
bzero( ctx, sizeof( esp_aes_context ) );
}

170
components/mbedtls/port/crypto_shared_gdma/esp_crypto_shared_gdma.c Normal file
View File

@@ -0,0 +1,170 @@
// Copyright 2021 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "esp_crypto_shared_gdma.h"
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "hal/gdma_ll.h"
#include "soc/soc_caps.h"
#include "esp_log.h"
#include "esp_err.h"
#include "esp_crypto_lock.h"
#define NEW_CHANNEL_TIMEOUT_MS 1000
#define NEW_CHANNEL_DELAY_MS 100
static const char *TAG = "crypto_shared_gdma";
static gdma_channel_handle_t rx_channel;
static gdma_channel_handle_t tx_channel;
/* Allocate a new GDMA channel, will keep trying until NEW_CHANNEL_TIMEOUT_MS */
static inline esp_err_t crypto_shared_gdma_new_channel(gdma_channel_alloc_config_t *channel_config, gdma_channel_handle_t *channel)
{
esp_err_t ret;
int time_waited_ms = 0;
while(1) {
ret = gdma_new_channel(channel_config, channel);
if (ret == ESP_OK) {
break;
} else if (time_waited_ms >= NEW_CHANNEL_TIMEOUT_MS) {
*channel = NULL;
break;
}
time_waited_ms += NEW_CHANNEL_DELAY_MS;
vTaskDelay(NEW_CHANNEL_DELAY_MS / portTICK_PERIOD_MS);
}
return ret;
}
#if SOC_GDMA_SUPPORT_EXTMEM
/* Initialize external memory specific DMA configs */
static void esp_crypto_shared_dma_init_extmem(void)
{
int tx_ch_id = 0;
int rx_ch_id = 0;
gdma_get_channel_id(tx_channel, &tx_ch_id);
gdma_get_channel_id(rx_channel, &rx_ch_id);
/* An L2 FIFO bigger than 40 bytes is need when accessing external ram */
gdma_ll_tx_extend_fifo_size_to(&GDMA, tx_ch_id, 40);
gdma_ll_rx_extend_l2_fifo_size_to(&GDMA, rx_ch_id, 40);
gdma_ll_tx_set_block_size_psram(&GDMA, tx_ch_id, GDMA_OUT_EXT_MEM_BK_SIZE_16B);
gdma_ll_rx_set_block_size_psram(&GDMA, rx_ch_id, GDMA_OUT_EXT_MEM_BK_SIZE_16B);
}
#endif //SOC_GDMA_SUPPORT_EXTMEM
/* Initialize GDMA module and channels */
static esp_err_t crypto_shared_gdma_init(void)
{
esp_err_t ret;
gdma_channel_alloc_config_t channel_config_tx = {
.direction = GDMA_CHANNEL_DIRECTION_TX,
};
gdma_channel_alloc_config_t channel_config_rx = {
.direction = GDMA_CHANNEL_DIRECTION_RX,
};
ret = crypto_shared_gdma_new_channel(&channel_config_tx, &tx_channel);
if (ret != ESP_OK) {
goto err;
}
ret = crypto_shared_gdma_new_channel(&channel_config_rx, &rx_channel);
if (ret != ESP_OK) {
gdma_del_channel(tx_channel); // Clean up already allocated TX channel
goto err;
}
#if SOC_GDMA_SUPPORT_EXTMEM
esp_crypto_shared_dma_init_extmem();
#endif //SOC_GDMA_SUPPORT_EXTMEM
gdma_connect(rx_channel, GDMA_MAKE_TRIGGER(GDMA_TRIG_PERIPH_AES, 0));
gdma_connect(tx_channel, GDMA_MAKE_TRIGGER(GDMA_TRIG_PERIPH_AES, 0));
return ESP_OK;
err:
ESP_LOGE(TAG, "Failed to acquire DMA channel, Err=0x%X", ret);
tx_channel = NULL;
rx_channel = NULL;
return ret;
}
esp_err_t esp_crypto_shared_gdma_start(const lldesc_t *input, const lldesc_t *output, gdma_trigger_peripheral_t peripheral)
{
int rx_ch_id = 0;
esp_err_t ret = ESP_OK;
if (tx_channel == NULL) {
/* Allocate a pair of RX and TX for crypto, should only happen the first time we use the GMDA
or if user called esp_crypto_shared_gdma_release */
ret = crypto_shared_gdma_init();
}
if (ret != ESP_OK) {
return ret;
}
/* Tx channel is shared between AES and SHA, need to connect to peripheral every time */
gdma_disconnect(tx_channel);
if (peripheral == GDMA_TRIG_PERIPH_SHA) {
gdma_connect(tx_channel, GDMA_MAKE_TRIGGER(GDMA_TRIG_PERIPH_SHA, 0));
} else if (peripheral == GDMA_TRIG_PERIPH_AES) {
gdma_connect(tx_channel, GDMA_MAKE_TRIGGER(GDMA_TRIG_PERIPH_AES, 0));
} else {
return ESP_ERR_INVALID_ARG;
}
/* tx channel is reset by gdma_connect(), also reset rx to ensure a known state */
gdma_get_channel_id(tx_channel, &rx_ch_id);
gdma_ll_rx_reset_channel(&GDMA, rx_ch_id);
gdma_start(tx_channel, (intptr_t)input);
gdma_start(rx_channel, (intptr_t)output);
return ESP_OK;
}
void esp_crypto_shared_gdma_free()
{
esp_crypto_sha_aes_lock_acquire();
if (rx_channel != NULL) {
gdma_disconnect(rx_channel);
gdma_del_channel(rx_channel);
rx_channel = NULL;
}
if (tx_channel != NULL) {
gdma_disconnect(tx_channel);
gdma_del_channel(tx_channel);
tx_channel = NULL;
}
esp_crypto_sha_aes_lock_release();
}

55
components/mbedtls/port/include/esp_crypto_shared_gdma.h Normal file
View File

@@ -0,0 +1,55 @@
// Copyright 2021 Espressif Systems (Shanghai) PTE LTD
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#pragma once
#include "soc/lldesc.h"
#include "esp_private/gdma.h"
#include "esp_err.h"
#ifdef __cplusplus
extern "C" {
#endif
/**
* @brief Start a GDMA transfer on the shared crypto DMA channel
*
* @note Will allocate a GDMA channel for AES & SHA if no such channel is already allocated
*
* @param input Input linked list descriptor
* @param output Output linked list descriptor
* @param peripheral Crypto peripheral to connect the DMA to, either GDMA_TRIG_PERIPH_AES or
* GDMA_TRIG_PERIPH_SHA
* @return esp_err_t ESP_FAIL if no GDMA channel available
*/
esp_err_t esp_crypto_shared_gdma_start(const lldesc_t *input, const lldesc_t *output, gdma_trigger_peripheral_t peripheral);
/**
* @brief Frees any shared crypto DMA channel, if esp_crypto_shared_gdma_start is called after
* this, new GDMA channels will be allocated.
*
* @note Function is meant to be called from user code, and thus takes AES/SHA lock.
* This means this function should not be called from code which already takes these locks,
* i.e. inside our AES/SHA code.
*
* If you are continously using AES/SHA (e.g. because of a wifi connection) then it's not recommended
* to use this API. Freeing the channel is mainly for use cases where you are finished with the crypto peripherals
* and need the DMA channel for other peripherals. An example would be doing some processing after disconnecting WiFi
*/
void esp_crypto_shared_gdma_free(void);
#ifdef __cplusplus
}
#endif

12
components/mbedtls/port/sha/dma/esp_sha1.c
View File

@@ -47,10 +47,6 @@
#include "sha/sha_dma.h"
#if SOC_SHA_GDMA
#include "esp_sha_dma_priv.h"
#endif
/* Implementation that should never be optimized out by the compiler */
static void mbedtls_zeroize( void *v, size_t n )
{
@@ -77,10 +73,6 @@ static void mbedtls_zeroize( void *v, size_t n )
void mbedtls_sha1_init( mbedtls_sha1_context *ctx )
{
memset( ctx, 0, sizeof( mbedtls_sha1_context ) );
#if SOC_SHA_GDMA
esp_sha_dma_init();
#endif
}
void mbedtls_sha1_free( mbedtls_sha1_context *ctx )
@@ -88,10 +80,6 @@ void mbedtls_sha1_free( mbedtls_sha1_context *ctx )
if ( ctx == NULL ) {
return;
}
#if SOC_SHA_GDMA
esp_sha_dma_free();
#endif
mbedtls_zeroize( ctx, sizeof( mbedtls_sha1_context ) );
}

12
components/mbedtls/port/sha/dma/esp_sha256.c
View File

@@ -48,10 +48,6 @@
#include "sha/sha_dma.h"
#if SOC_SHA_GDMA
#include "esp_sha_dma_priv.h"
#endif
/* Implementation that should never be optimized out by the compiler */
static void mbedtls_zeroize( void *v, size_t n )
{
@@ -87,10 +83,6 @@ do { \
void mbedtls_sha256_init( mbedtls_sha256_context *ctx )
{
memset( ctx, 0, sizeof( mbedtls_sha256_context ) );
#if SOC_SHA_GDMA
esp_sha_dma_init();
#endif
}
void mbedtls_sha256_free( mbedtls_sha256_context *ctx )
@@ -99,10 +91,6 @@ void mbedtls_sha256_free( mbedtls_sha256_context *ctx )
return;
}
#if SOC_SHA_GDMA
esp_sha_dma_free();
#endif
mbedtls_zeroize( ctx, sizeof( mbedtls_sha256_context ) );
}

12
components/mbedtls/port/sha/dma/esp_sha512.c
View File

@@ -54,10 +54,6 @@
#include "sha/sha_dma.h"
#if SOC_SHA_GDMA
#include "esp_sha_dma_priv.h"
#endif
/* Implementation that should never be optimized out by the compiler */
static void mbedtls_zeroize( void *v, size_t n )
{
@@ -109,10 +105,6 @@ void esp_sha512_set_t( mbedtls_sha512_context *ctx, uint16_t t_val)
void mbedtls_sha512_init( mbedtls_sha512_context *ctx )
{
memset( ctx, 0, sizeof( mbedtls_sha512_context ) );
#if SOC_SHA_GDMA
esp_sha_dma_init();
#endif
}
void mbedtls_sha512_free( mbedtls_sha512_context *ctx )
@@ -121,10 +113,6 @@ void mbedtls_sha512_free( mbedtls_sha512_context *ctx )
return;
}
#if SOC_SHA_GDMA
esp_sha_dma_free();
#endif
mbedtls_zeroize( ctx, sizeof( mbedtls_sha512_context ) );
}

125
components/mbedtls/port/sha/dma/esp_sha_gdma_impl.c
View File

@@ -11,130 +11,11 @@
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include "esp_sha_dma_priv.h"
#include <sys/lock.h>
#include "freertos/FreeRTOS.h"
#include "freertos/task.h"
#include "driver/periph_ctrl.h"
#include "hal/gdma_ll.h"
#include "soc/soc_caps.h"
#include "esp_private/gdma.h"
#include "esp_log.h"
#define NEW_CHANNEL_TIMEOUT_MS 1000
#define NEW_CHANNEL_DELAY_MS 100
static const char *TAG = "esp_sha_gdma";
static _lock_t gdma_ch_lock;
/* For GDMA we allocate and reserve a single DMA pair for sha at esp_sha_init
and release it esp_sha_free
This is done to avoid the GDMA associated overhead when doing multiple sha transforms in a row.
The channel is shared between any sha operations that are running in parallel,
access will be limited by the peripheral lock
*/
static uint8_t ref_counts;
/* The GDMA channel is protected from concurrent access by the general sha peripheral lock */
static gdma_channel_handle_t tx_channel;
/* Allocate a new GDMA channel, will keep trying until NEW_CHANNEL_TIMEOUT_MS */
static inline esp_err_t esp_sha_gdma_new_channel(gdma_channel_alloc_config_t *channel_config, gdma_channel_handle_t *channel)
{
esp_err_t ret;
int time_waited_ms = 0;
while(1) {
ret = gdma_new_channel(channel_config, channel);
if (ret == ESP_OK) {
break;
} else if (time_waited_ms >= 1
) {
*channel = NULL;
break;
}
time_waited_ms += NEW_CHANNEL_DELAY_MS;
vTaskDelay(NEW_CHANNEL_DELAY_MS / portTICK_PERIOD_MS);
}
return ret;
}
/* Initialize GDMA module and channels */
static inline void esp_sha_gdma_init(void)
{
esp_err_t ret;
gdma_channel_alloc_config_t channel_config = {
.direction = GDMA_CHANNEL_DIRECTION_TX,
};
ret = esp_sha_gdma_new_channel(&channel_config, &tx_channel);
if (ret != ESP_OK) {
/* mbedtls_sha_init do not have a way of signaling errors to the caller
so we set the channel to NULL and detect it in esp_sha_dma_start */
ESP_LOGE(TAG, "Failed to acquire DMA channel, Err=0x%X", ret);
tx_channel = NULL;
return;
}
gdma_connect(tx_channel, GDMA_MAKE_TRIGGER(GDMA_TRIG_PERIPH_SHA, 0));
}
void esp_sha_dma_init()
{
_lock_acquire(&gdma_ch_lock);
if (ref_counts == 0) {
esp_sha_gdma_init();
}
ref_counts++;
_lock_release(&gdma_ch_lock);
}
static inline void esp_sha_gdma_free(void)
{
gdma_disconnect(tx_channel);
gdma_del_channel(tx_channel);
tx_channel = NULL;
}
void esp_sha_dma_free()
{
_lock_acquire(&gdma_ch_lock);
ref_counts--;
if (ref_counts == 0) {
esp_sha_gdma_free();
}
_lock_release(&gdma_ch_lock);
}
#include "esp_crypto_shared_gdma.h"
esp_err_t esp_sha_dma_start(const lldesc_t *input)
{
#if SOC_GDMA_SUPPORT_EXTMEM
int tx_ch_id = 0;
#endif //SOC_GDMA_SUPPORT_EXTMEM
if (!tx_channel) {
/* Will happen if no channel was acquired before timeout */
return ESP_FAIL;
}
#if SOC_GDMA_SUPPORT_EXTMEM
gdma_get_channel_id(tx_channel, &tx_ch_id);
/* An L2 FIFO bigger than 40 bytes is need when accessing external ram */
gdma_ll_tx_extend_fifo_size_to(&GDMA, tx_ch_id, 40);
gdma_ll_tx_set_block_size_psram(&GDMA, tx_ch_id, GDMA_OUT_EXT_MEM_BK_SIZE_16B);
#endif //SOC_GDMA_SUPPORT_EXTMEM
gdma_start(tx_channel, (intptr_t)input);
return ESP_OK;
return esp_crypto_shared_gdma_start(input, NULL, GDMA_TRIG_PERIPH_SHA);
}

21
components/mbedtls/port/sha/dma/include/esp_sha_dma_priv.h
View File

@@ -22,27 +22,6 @@
extern "C" {
#endif
#if SOC_SHA_GDMA
/**
* @brief Initialize the GDMA channel
*
* @note Allocate and initialize a DMA channel (tx) for the SHA peripheral
* Only one channel will be initialized at any given time. If two or more SHA operations are
* run in parallel the channel will be shared sequentially.
*
*/
void esp_sha_dma_init(void);
/**
* @brief Free the GDMA channel
*
* @note The channel will only be freed if there are no other SHA operations currently using it
*
*/
void esp_sha_dma_free(void);
#endif //SOC_SHA_GDMA
/**
* @brief Start the DMA engine
*

6
components/mbedtls/port/sha/dma/sha.c
View File

@@ -55,13 +55,11 @@
#endif
#if SOC_SHA_GDMA
#define SHA_LOCK() esp_crypto_sha_lock_acquire()
#define SHA_RELEASE() esp_crypto_sha_lock_release()
#define SHA_LOCK() esp_crypto_sha_aes_lock_acquire()
#define SHA_RELEASE() esp_crypto_sha_aes_lock_release()
#elif SOC_SHA_CRYPTO_DMA
#define SHA_LOCK() esp_crypto_dma_lock_acquire()
#define SHA_RELEASE() esp_crypto_dma_lock_release()
#else
#define SHA_LOCK() ()
#endif
const static char *TAG = "esp-sha";