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-rw-r--r--src/import/generic/memory/lib/utils/buffer_ops.H28
-rw-r--r--src/import/generic/memory/lib/utils/mcbist/gen_mss_mcbist_address.H18
2 files changed, 45 insertions, 1 deletions
diff --git a/src/import/generic/memory/lib/utils/buffer_ops.H b/src/import/generic/memory/lib/utils/buffer_ops.H
index 31e7f11a2..42b02b5d1 100644
--- a/src/import/generic/memory/lib/utils/buffer_ops.H
+++ b/src/import/generic/memory/lib/utils/buffer_ops.H
@@ -5,7 +5,7 @@
/* */
/* OpenPOWER HostBoot Project */
/* */
-/* Contributors Listed Below - COPYRIGHT 2015,2018 */
+/* Contributors Listed Below - COPYRIGHT 2015,2019 */
/* [+] International Business Machines Corp. */
/* */
/* */
@@ -103,6 +103,32 @@ static inline void reverse( T& io_buffer )
}
///
+/// @brief Reverse a given bit range of a buffer
+/// @tparam S start bit
+/// @tparam L length of bits to reverse
+/// @tparam T buffer type
+/// @param[in] io_buffer
+///
+template<uint64_t S, uint64_t L, typename T>
+static inline void reverse_range(fapi2::buffer<T>& io_buffer)
+{
+ const auto target_length = fapi2::parameterTraits<T>::bit_length();
+
+ static_assert(S < target_length,
+ "reverse_range(): Start is out of bounds");
+
+ static_assert((S + L) <= target_length,
+ "reverse_range(): (Start + Len) is out of bounds");
+
+ fapi2::buffer<T> l_tmp;
+
+ io_buffer.template extractToRight<S, L>(l_tmp);
+
+ l_tmp.reverse();
+ io_buffer.template insert<S, L>(l_tmp);
+}
+
+///
/// @brief Swizzle bits between two fapi2 buffers, and insert from source to destination
/// @tparam DS the start bit in the destination buffer - swizzle will count up from here
/// @tparam L how many bits to swizzle
diff --git a/src/import/generic/memory/lib/utils/mcbist/gen_mss_mcbist_address.H b/src/import/generic/memory/lib/utils/mcbist/gen_mss_mcbist_address.H
index b42c0e39b..37e35c48d 100644
--- a/src/import/generic/memory/lib/utils/mcbist/gen_mss_mcbist_address.H
+++ b/src/import/generic/memory/lib/utils/mcbist/gen_mss_mcbist_address.H
@@ -99,6 +99,15 @@ class address
}
///
+ /// @brief Construct an address from the provided buffer
+ /// @param[in] i_address fapi2::buffer address
+ ///
+ address(const fapi2::buffer<uint64_t>& i_address):
+ iv_address(i_address)
+ {
+ }
+
+ ///
/// @brief Conversion operator to uint64_t
/// @warn Right-aligns the address
///
@@ -412,6 +421,15 @@ class address
return get_field<BANK_GROUP>();
}
+ ///
+ /// @brief Get the buffer object for bit operations
+ /// @return fapi2::buffer<uint64_t>&
+ ///
+ inline fapi2::buffer<uint64_t> get_address_buffer() const
+ {
+ return iv_address;
+ }
+
private:
// We use a fapi2 buffer as it has static compile-time support
fapi2::buffer<uint64_t> iv_address;
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