aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/staging/ccree/cc_sram_mgr.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/staging/ccree/cc_sram_mgr.c')
-rw-r--r--drivers/staging/ccree/cc_sram_mgr.c107
1 files changed, 0 insertions, 107 deletions
diff --git a/drivers/staging/ccree/cc_sram_mgr.c b/drivers/staging/ccree/cc_sram_mgr.c
deleted file mode 100644
index d1f8a9cc1c0f..000000000000
--- a/drivers/staging/ccree/cc_sram_mgr.c
+++ /dev/null
@@ -1,107 +0,0 @@
-// SPDX-License-Identifier: GPL-2.0
-/* Copyright (C) 2012-2018 ARM Limited or its affiliates. */
-
-#include "cc_driver.h"
-#include "cc_sram_mgr.h"
-
-/**
- * struct cc_sram_ctx -Internal RAM context manager
- * @sram_free_offset: the offset to the non-allocated area
- */
-struct cc_sram_ctx {
- cc_sram_addr_t sram_free_offset;
-};
-
-/**
- * cc_sram_mgr_fini() - Cleanup SRAM pool.
- *
- * @drvdata: Associated device driver context
- */
-void cc_sram_mgr_fini(struct cc_drvdata *drvdata)
-{
- /* Free "this" context */
- kfree(drvdata->sram_mgr_handle);
-}
-
-/**
- * cc_sram_mgr_init() - Initializes SRAM pool.
- * The pool starts right at the beginning of SRAM.
- * Returns zero for success, negative value otherwise.
- *
- * @drvdata: Associated device driver context
- */
-int cc_sram_mgr_init(struct cc_drvdata *drvdata)
-{
- struct cc_sram_ctx *ctx;
-
- /* Allocate "this" context */
- ctx = kzalloc(sizeof(*ctx), GFP_KERNEL);
-
- if (!ctx)
- return -ENOMEM;
-
- drvdata->sram_mgr_handle = ctx;
-
- return 0;
-}
-
-/*!
- * Allocated buffer from SRAM pool.
- * Note: Caller is responsible to free the LAST allocated buffer.
- * This function does not taking care of any fragmentation may occur
- * by the order of calls to alloc/free.
- *
- * \param drvdata
- * \param size The requested bytes to allocate
- */
-cc_sram_addr_t cc_sram_alloc(struct cc_drvdata *drvdata, u32 size)
-{
- struct cc_sram_ctx *smgr_ctx = drvdata->sram_mgr_handle;
- struct device *dev = drvdata_to_dev(drvdata);
- cc_sram_addr_t p;
-
- if ((size & 0x3)) {
- dev_err(dev, "Requested buffer size (%u) is not multiple of 4",
- size);
- return NULL_SRAM_ADDR;
- }
- if (size > (CC_CC_SRAM_SIZE - smgr_ctx->sram_free_offset)) {
- dev_err(dev, "Not enough space to allocate %u B (at offset %llu)\n",
- size, smgr_ctx->sram_free_offset);
- return NULL_SRAM_ADDR;
- }
-
- p = smgr_ctx->sram_free_offset;
- smgr_ctx->sram_free_offset += size;
- dev_dbg(dev, "Allocated %u B @ %u\n", size, (unsigned int)p);
- return p;
-}
-
-/**
- * cc_set_sram_desc() - Create const descriptors sequence to
- * set values in given array into SRAM.
- * Note: each const value can't exceed word size.
- *
- * @src: A pointer to array of words to set as consts.
- * @dst: The target SRAM buffer to set into
- * @nelements: The number of words in "src" array
- * @seq: A pointer to the given IN/OUT descriptor sequence
- * @seq_len: A pointer to the given IN/OUT sequence length
- */
-void cc_set_sram_desc(const u32 *src, cc_sram_addr_t dst,
- unsigned int nelement, struct cc_hw_desc *seq,
- unsigned int *seq_len)
-{
- u32 i;
- unsigned int idx = *seq_len;
-
- for (i = 0; i < nelement; i++, idx++) {
- hw_desc_init(&seq[idx]);
- set_din_const(&seq[idx], src[i], sizeof(u32));
- set_dout_sram(&seq[idx], dst + (i * sizeof(u32)), sizeof(u32));
- set_flow_mode(&seq[idx], BYPASS);
- }
-
- *seq_len = idx;
-}
-