linux/drivers/crypto/inside-secure/safexcel_ring.c

// SPDX-License-Identifier: GPL-2.0
/*
 * Copyright (C) 2017 Marvell
 *
 * Antoine Tenart <[email protected]>
 */

#include <linux/dma-mapping.h>
#include <linux/spinlock.h>

#include "safexcel.h"

int safexcel_init_ring_descriptors(struct safexcel_crypto_priv *priv,
				   struct safexcel_desc_ring *cdr,
				   struct safexcel_desc_ring *rdr)
{ … }

inline int safexcel_select_ring(struct safexcel_crypto_priv *priv)
{ … }

static void *safexcel_ring_next_cwptr(struct safexcel_crypto_priv *priv,
				     struct safexcel_desc_ring *ring,
				     bool first,
				     struct safexcel_token **atoken)
{ … }

static void *safexcel_ring_next_rwptr(struct safexcel_crypto_priv *priv,
				     struct safexcel_desc_ring *ring,
				     struct result_data_desc **rtoken)
{ … }

void *safexcel_ring_next_rptr(struct safexcel_crypto_priv *priv,
			      struct safexcel_desc_ring *ring)
{ … }

inline void *safexcel_ring_curr_rptr(struct safexcel_crypto_priv *priv,
				     int ring)
{ … }

inline int safexcel_ring_first_rdr_index(struct safexcel_crypto_priv *priv,
					 int ring)
{ … }

inline int safexcel_ring_rdr_rdesc_index(struct safexcel_crypto_priv *priv,
					 int ring,
					 struct safexcel_result_desc *rdesc)
{ … }

void safexcel_ring_rollback_wptr(struct safexcel_crypto_priv *priv,
				 struct safexcel_desc_ring *ring)
{ … }

struct safexcel_command_desc *safexcel_add_cdesc(struct safexcel_crypto_priv *priv,
						 int ring_id,
						 bool first, bool last,
						 dma_addr_t data, u32 data_len,
						 u32 full_data_len,
						 dma_addr_t context,
						 struct safexcel_token **atoken)
{ … }

struct safexcel_result_desc *safexcel_add_rdesc(struct safexcel_crypto_priv *priv,
						int ring_id,
						bool first, bool last,
						dma_addr_t data, u32 len)
{ … }