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Update documentation

pull/752/head
Jeffrey Walton 2018-11-30 08:22:30 -05:00
parent af7cdcdbec
commit 52613240ae
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1 changed files with 6 additions and 15 deletions
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21
cpu.h
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@ -610,9 +610,6 @@ void CRYPTOPP_API DetectPowerpcFeatures();
/// \details Runtime support requires compile time support. When compiling with GCC, you may /// \details Runtime support requires compile time support. When compiling with GCC, you may
/// need to compile with <tt>-mcpu=power4</tt>; while IBM XL C/C++ compilers require /// need to compile with <tt>-mcpu=power4</tt>; while IBM XL C/C++ compilers require
/// <tt>-qarch=pwr6 -qaltivec</tt>. Also see PowerPC's <tt>_ALTIVEC_</tt> preprocessor macro. /// <tt>-qarch=pwr6 -qaltivec</tt>. Also see PowerPC's <tt>_ALTIVEC_</tt> preprocessor macro.
/// \details Atilvec was first available in the early 2000's. However Crypto++ releies heavily
/// on unaligned loads and stores which is a Power7 feature. If the platform lacks Power7
/// extensions, then the GNUmakefile sets <tt>-DCRYPTOPP_DISABLE_POWER7</tt>.
/// \note This function is only available on PowerPC and PowerPC-64 platforms /// \note This function is only available on PowerPC and PowerPC-64 platforms
inline bool HasAltivec() inline bool HasAltivec()
{ {
@ -626,9 +623,6 @@ inline bool HasAltivec()
/// \details Runtime support requires compile time support. When compiling with GCC, you may /// \details Runtime support requires compile time support. When compiling with GCC, you may
/// need to compile with <tt>-mcpu=power7</tt>; while IBM XL C/C++ compilers require /// need to compile with <tt>-mcpu=power7</tt>; while IBM XL C/C++ compilers require
/// <tt>-qarch=pwr7 -qaltivec</tt>. Also see PowerPC's <tt>_ALTIVEC_</tt> preprocessor macro. /// <tt>-qarch=pwr7 -qaltivec</tt>. Also see PowerPC's <tt>_ALTIVEC_</tt> preprocessor macro.
/// \details Atilvec was first available in the early 2000's. However Crypto++ releies heavily
/// on unaligned loads and stores which is a Power7 feature. If the platform lacks Power7
/// extensions, then the GNUmakefile sets <tt>-DCRYPTOPP_DISABLE_POWER7</tt>.
/// \note This function is only available on PowerPC and PowerPC-64 platforms /// \note This function is only available on PowerPC and PowerPC-64 platforms
inline bool HasPower7() inline bool HasPower7()
{ {
@ -642,9 +636,6 @@ inline bool HasPower7()
/// \details Runtime support requires compile time support. When compiling with GCC, you may /// \details Runtime support requires compile time support. When compiling with GCC, you may
/// need to compile with <tt>-mcpu=power8</tt>; while IBM XL C/C++ compilers require /// need to compile with <tt>-mcpu=power8</tt>; while IBM XL C/C++ compilers require
/// <tt>-qarch=pwr8 -qaltivec</tt>. Also see PowerPC's <tt>_ALTIVEC_</tt> preprocessor macro. /// <tt>-qarch=pwr8 -qaltivec</tt>. Also see PowerPC's <tt>_ALTIVEC_</tt> preprocessor macro.
/// \details Atilvec was first available in the early 2000's. However Crypto++ releies heavily
/// on unaligned loads and stores which is a Power7 feature. If the platform lacks Power7
/// extensions, then the GNUmakefile sets <tt>-DCRYPTOPP_DISABLE_POWER7</tt>.
/// \note This function is only available on PowerPC and PowerPC-64 platforms /// \note This function is only available on PowerPC and PowerPC-64 platforms
inline bool HasPower8() inline bool HasPower8()
{ {
@ -658,9 +649,6 @@ inline bool HasPower8()
/// \details Runtime support requires compile time support. When compiling with GCC, you may /// \details Runtime support requires compile time support. When compiling with GCC, you may
/// need to compile with <tt>-mcpu=power9</tt>; while IBM XL C/C++ compilers require /// need to compile with <tt>-mcpu=power9</tt>; while IBM XL C/C++ compilers require
/// <tt>-qarch=pwr9 -qaltivec</tt>. Also see PowerPC's <tt>_ALTIVEC_</tt> preprocessor macro. /// <tt>-qarch=pwr9 -qaltivec</tt>. Also see PowerPC's <tt>_ALTIVEC_</tt> preprocessor macro.
/// \details Atilvec was first available in the early 2000's. However Crypto++ releies heavily
/// on unaligned loads and stores which is a Power7 feature. If the platform lacks Power7
/// extensions, then the GNUmakefile sets <tt>-DCRYPTOPP_DISABLE_POWER7</tt>.
/// \note This function is only available on PowerPC and PowerPC-64 platforms /// \note This function is only available on PowerPC and PowerPC-64 platforms
inline bool HasPower9() inline bool HasPower9()
{ {
@ -730,15 +718,18 @@ inline bool HasSHA512()
/// \details Runtime support requires compile time support. When compiling with GCC, you may /// \details Runtime support requires compile time support. When compiling with GCC, you may
/// need to compile with <tt>-mcpu=power9</tt>; while IBM XL C/C++ compilers require /// need to compile with <tt>-mcpu=power9</tt>; while IBM XL C/C++ compilers require
/// <tt>-qarch=pwr9 -qaltivec</tt>. Also see PowerPC's <tt>_ALTIVEC_</tt> preprocessor macro. /// <tt>-qarch=pwr9 -qaltivec</tt>. Also see PowerPC's <tt>_ALTIVEC_</tt> preprocessor macro.
/// \details Atilvec was first available in the early 2000's. However Crypto++ relies heavily
/// on unaligned loads and stores which is a Power7 feature. If the platform lacks Power7
/// extensions, then the GNUmakefile sets <tt>-DCRYPTOPP_DISABLE_POWER7</tt>.
/// \note This function is only available on PowerPC and PowerPC-64 platforms /// \note This function is only available on PowerPC and PowerPC-64 platforms
inline bool HasDARN() inline bool HasDARN()
{ {
if (!g_PowerpcDetectionDone) if (!g_PowerpcDetectionDone)
DetectPowerpcFeatures(); DetectPowerpcFeatures();
// see comments in cpu.cpp
#if defined(__ibmxl__) && defined(__linux__)
return false;
#else
return g_hasDARN; return g_hasDARN;
#endif
} }
/// \brief Provides the cache line size /// \brief Provides the cache line size