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Diffstat (limited to 'lib/sprt/sprt_queue.c')
-rw-r--r--lib/sprt/sprt_queue.c104
1 files changed, 0 insertions, 104 deletions
diff --git a/lib/sprt/sprt_queue.c b/lib/sprt/sprt_queue.c
deleted file mode 100644
index 2bd4139ea4..0000000000
--- a/lib/sprt/sprt_queue.c
+++ /dev/null
@@ -1,104 +0,0 @@
-/*
- * Copyright (c) 2018, Arm Limited. All rights reserved.
- *
- * SPDX-License-Identifier: BSD-3-Clause
- */
-
-#include <assert.h>
-#include <errno.h>
-#include <stdint.h>
-#include <string.h>
-
-#include "sprt_queue.h"
-
-void sprt_queue_init(void *queue_base, uint32_t entry_num, uint32_t entry_size)
-{
- assert(queue_base != NULL);
- assert(entry_size > 0U);
- assert(entry_num > 0U);
-
- struct sprt_queue *queue = (struct sprt_queue *)queue_base;
-
- queue->entry_num = entry_num;
- queue->entry_size = entry_size;
- queue->idx_write = 0U;
- queue->idx_read = 0U;
-
- memset(queue->data, 0, entry_num * entry_size);
-}
-
-int sprt_queue_is_empty(void *queue_base)
-{
- assert(queue_base != NULL);
-
- struct sprt_queue *queue = (struct sprt_queue *)queue_base;
-
- return (queue->idx_write == queue->idx_read);
-}
-
-int sprt_queue_is_full(void *queue_base)
-{
- assert(queue_base != NULL);
-
- struct sprt_queue *queue = (struct sprt_queue *)queue_base;
-
- uint32_t idx_next_write = (queue->idx_write + 1) % queue->entry_num;
-
- return (idx_next_write == queue->idx_read);
-}
-
-int sprt_queue_push(void *queue_base, const void *entry)
-{
- assert(entry != NULL);
- assert(queue_base != NULL);
-
- if (sprt_queue_is_full(queue_base) != 0) {
- return -ENOMEM;
- }
-
- struct sprt_queue *queue = (struct sprt_queue *)queue_base;
-
- uint8_t *dst_entry = &queue->data[queue->entry_size * queue->idx_write];
-
- memcpy(dst_entry, entry, queue->entry_size);
-
- /*
- * Make sure that the message data is visible before increasing the
- * counter of available messages.
- */
- __asm__ volatile("dmb st" ::: "memory");
-
- queue->idx_write = (queue->idx_write + 1) % queue->entry_num;
-
- __asm__ volatile("dmb st" ::: "memory");
-
- return 0;
-}
-
-int sprt_queue_pop(void *queue_base, void *entry)
-{
- assert(entry != NULL);
- assert(queue_base != NULL);
-
- if (sprt_queue_is_empty(queue_base) != 0) {
- return -ENOENT;
- }
-
- struct sprt_queue *queue = (struct sprt_queue *)queue_base;
-
- uint8_t *src_entry = &queue->data[queue->entry_size * queue->idx_read];
-
- memcpy(entry, src_entry, queue->entry_size);
-
- /*
- * Make sure that the message data is visible before increasing the
- * counter of read messages.
- */
- __asm__ volatile("dmb st" ::: "memory");
-
- queue->idx_read = (queue->idx_read + 1) % queue->entry_num;
-
- __asm__ volatile("dmb st" ::: "memory");
-
- return 0;
-}