1 files changed, 105 insertions, 0 deletions
diff --git a/drivers/staging/ccree/ssi_buffer_mgr.h b/drivers/staging/ccree/ssi_buffer_mgr.h
new file mode 100644
index 0000000..5f4b032
--- /dev/null
+++ b/drivers/staging/ccree/ssi_buffer_mgr.h
@@ -0,0 +1,105 @@
+/*
+ * Copyright (C) 2012-2017 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 version 2 as
+ * published by the Free Software Foundation.
+ * 
+ * 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, see <http://www.gnu.org/licenses/>.
+ */
+
+/* \file buffer_mgr.h
+   Buffer Manager
+ */
+
+#ifndef __SSI_BUFFER_MGR_H__
+#define __SSI_BUFFER_MGR_H__
+
+#include <crypto/algapi.h>
+
+#include "ssi_config.h"
+#include "ssi_driver.h"
+
+
+enum ssi_req_dma_buf_type {
+	SSI_DMA_BUF_NULL = 0,
+	SSI_DMA_BUF_DLLI,
+	SSI_DMA_BUF_MLLI
+};
+
+enum ssi_sg_cpy_direct {
+	SSI_SG_TO_BUF = 0,
+	SSI_SG_FROM_BUF = 1
+};
+
+struct ssi_mlli {
+	ssi_sram_addr_t sram_addr;
+	unsigned int nents; //sg nents
+	unsigned int mlli_nents; //mlli nents might be different than the above
+};
+
+struct mlli_params {
+	struct dma_pool *curr_pool;
+	uint8_t *mlli_virt_addr;
+	dma_addr_t mlli_dma_addr;
+	uint32_t mlli_len;  
+};
+
+int ssi_buffer_mgr_init(struct ssi_drvdata *drvdata);
+
+int ssi_buffer_mgr_fini(struct ssi_drvdata *drvdata);
+
+int ssi_buffer_mgr_map_blkcipher_request(
+	struct ssi_drvdata *drvdata,
+	void *ctx,
+	unsigned int ivsize,
+	unsigned int nbytes,
+	void *info,
+	struct scatterlist *src,
+	struct scatterlist *dst);
+
+void ssi_buffer_mgr_unmap_blkcipher_request(
+	struct device *dev, 
+	void *ctx,
+	unsigned int ivsize,
+	struct scatterlist *src,
+	struct scatterlist *dst);
+
+int ssi_buffer_mgr_map_aead_request(struct ssi_drvdata *drvdata, struct aead_request *req);
+
+void ssi_buffer_mgr_unmap_aead_request(struct device *dev, struct aead_request *req);
+
+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);
+
+
+#ifdef CC_DMA_48BIT_SIM
+dma_addr_t ssi_buff_mgr_update_dma_addr(dma_addr_t orig_addr, uint32_t data_len);
+dma_addr_t ssi_buff_mgr_restore_dma_addr(dma_addr_t orig_addr);
+
+#define SSI_UPDATE_DMA_ADDR_TO_48BIT(addr,size) addr = \
+					ssi_buff_mgr_update_dma_addr(addr,size)
+#define SSI_RESTORE_DMA_ADDR_TO_48BIT(addr) addr = \
+					ssi_buff_mgr_restore_dma_addr(addr)
+#else
+
+#define SSI_UPDATE_DMA_ADDR_TO_48BIT(addr,size) addr = addr
+#define SSI_RESTORE_DMA_ADDR_TO_48BIT(addr) addr = addr
+
+#endif
+
+#endif /*__BUFFER_MGR_H__*/
+