1 files changed, 80 insertions, 0 deletions
diff --git a/drivers/staging/ccree/ssi_sram_mgr.h b/drivers/staging/ccree/ssi_sram_mgr.h
new file mode 100644
index 000000000000..d71fbaf9ac44
--- /dev/null
+++ b/drivers/staging/ccree/ssi_sram_mgr.h
@@ -0,0 +1,80 @@
+/*
+ * 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/>.
+ */
+
+#ifndef __SSI_SRAM_MGR_H__
+#define __SSI_SRAM_MGR_H__
+
+
+#ifndef SSI_CC_SRAM_SIZE
+#define SSI_CC_SRAM_SIZE 4096
+#endif
+
+struct ssi_drvdata;
+
+/**
+ * Address (offset) within CC internal SRAM
+ */
+
+typedef uint64_t ssi_sram_addr_t;
+
+#define NULL_SRAM_ADDR ((ssi_sram_addr_t)-1)
+
+/*!
+ * Initializes SRAM pool. 
+ * The first X bytes of SRAM are reserved for ROM usage, hence, pool 
+ * starts right after X bytes. 
+ *  
+ * \param drvdata 
+ *  
+ * \return int Zero for success, negative value otherwise.
+ */
+int ssi_sram_mgr_init(struct ssi_drvdata *drvdata);
+
+/*!
+ * Uninits SRAM pool.
+ * 
+ * \param drvdata 
+ */
+void ssi_sram_mgr_fini(struct ssi_drvdata *drvdata);
+
+/*!
+ * 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
+ */
+ssi_sram_addr_t ssi_sram_mgr_alloc(struct ssi_drvdata *drvdata, uint32_t size);
+
+/**
+ * ssi_sram_mgr_const2sram_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 ssi_sram_mgr_const2sram_desc(
+	const uint32_t *src, ssi_sram_addr_t dst,
+	unsigned int nelement,
+	HwDesc_s *seq, unsigned int *seq_len);
+
+#endif /*__SSI_SRAM_MGR_H__*/