1 files changed, 100 insertions, 0 deletions
diff --git a/src/vendorcode/cavium/include/bdk/libbdk-arch/bdk-lmt.h b/src/vendorcode/cavium/include/bdk/libbdk-arch/bdk-lmt.h
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+++ b/src/vendorcode/cavium/include/bdk/libbdk-arch/bdk-lmt.h
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+/***********************license start***********************************
+* Copyright (c) 2003-2017  Cavium Inc. (support@cavium.com). All rights
+* reserved.
+*
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are
+* met:
+*
+*   * Redistributions of source code must retain the above copyright
+*     notice, this list of conditions and the following disclaimer.
+*
+*   * Redistributions in binary form must reproduce the above
+*     copyright notice, this list of conditions and the following
+*     disclaimer in the documentation and/or other materials provided
+*     with the distribution.
+*
+*   * Neither the name of Cavium Inc. nor the names of
+*     its contributors may be used to endorse or promote products
+*     derived from this software without specific prior written
+*     permission.
+*
+* This Software, including technical data, may be subject to U.S. export
+* control laws, including the U.S. Export Administration Act and its
+* associated regulations, and may be subject to export or import
+* regulations in other countries.
+*
+* TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
+* AND WITH ALL FAULTS AND CAVIUM INC. MAKES NO PROMISES, REPRESENTATIONS OR
+* WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT
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+* QUIET POSSESSION OR CORRESPONDENCE TO DESCRIPTION. THE ENTIRE  RISK
+* ARISING OUT OF USE OR PERFORMANCE OF THE SOFTWARE LIES WITH YOU.
+***********************license end**************************************/
+
+/**
+ * @file
+ *
+ * Defiens and functions for performing LMT operations, such as
+ * LMTST and LMTCANCEL
+ *
+ * @defgroup lmt Local Memory Transaction (LMT) support
+ * @{
+ */
+#include "libbdk-arch/bdk-csrs-lmt.h"
+
+/**
+ * Address of the LMT store area in physical memory
+ */
+#define __BDK_LMTLINE_CN83XX 0x87F100000000ull
+
+/**
+ * Flush the LMTLINE area of all previous writes and clear the valid flag
+ */
+static inline void bdk_lmt_cancel(void)
+{
+    if (CAVIUM_IS_MODEL(CAVIUM_CN83XX))
+        *(volatile uint64_t *)(__BDK_LMTLINE_CN83XX | (1 << 10)) = 0;
+    else
+        BDK_CSR_WRITE(bdk_numa_local(), BDK_LMT_LF_LMTCANCEL, 0);
+}
+
+/**
+ * Return a volatile pointer to the LMTLINE area in 64bit words. Good programming
+ * practice would to always store sequencially, incrementing the pointer for each
+ * word written.
+ *
+ * @return Voltaile uint64_t pointer to LMTLINE
+ */
+static inline volatile uint64_t *bdk_lmt_store_ptr(void)
+{
+    if (CAVIUM_IS_MODEL(CAVIUM_CN83XX))
+        return (volatile uint64_t *)__BDK_LMTLINE_CN83XX;
+    else
+        return (volatile uint64_t *)BDK_LMT_LF_LMTLINEX(0);
+}
+
+/**
+ * Send the data stored to LMTLINE to an IO block. This call may
+ * fail if the hardware has invalidated the LMTLINE area. If it
+ * fails, you must issue all LMT stores again and redo this
+ * call. Note the return status of this function is backwards
+ * to most BDK functions. It matches the LMTST hardware result.
+ *
+ * @param io_address 48 bit IO address where the LMTLINE data will be sent
+ *
+ * @return Zero on failure, non-zero on success
+ */
+static inline int bdk_lmt_submit(uint64_t io_address)
+{
+    int64_t result = 0;
+    asm volatile ("LDEOR xzr,%x[rf],[%[rs]]" : [rf] "=r"(result): [rs] "r"(io_address));
+    return bdk_le64_to_cpu(result);
+}
+
+/** @} */