| Message ID | 1724050675-17136-2-git-send-email-wangfeifei@hygon.cn |
|---|---|
| State | New |
| Headers | show |
| Series | x86: Add support for Hygon processors | expand |
On Sun, Aug 18, 2024 at 11:58 PM Feifei Wang <wangfeifei@hygon.cn> wrote: > > Add a new architecture type arch_kind_hygon to spilt Hygon branch > from AMD. This is to facilitate the Hygon processors to make settings > that are suitable for its own characteristics. > > Signed-off-by: Feifei Wang <wangfeifei@hygon.cn> > Reviewed-by: Jing Li <lijing@hygon.cn> > --- > sysdeps/x86/cpu-features.c | 19 ++++++++++++++++--- > sysdeps/x86/include/cpu-features.h | 1 + > 2 files changed, 17 insertions(+), 3 deletions(-) > > diff --git a/sysdeps/x86/cpu-features.c b/sysdeps/x86/cpu-features.c > index 0fb50f9432..e6139e2837 100644 > --- a/sysdeps/x86/cpu-features.c > +++ b/sysdeps/x86/cpu-features.c > @@ -986,9 +986,8 @@ https://www.intel.com/content/www/us/en/support/articles/000059422/processors.ht > cpu_features->preferred[index_arch_Avoid_Short_Distance_REP_MOVSB] > |= bit_arch_Avoid_Short_Distance_REP_MOVSB; > } > - /* This spells out "AuthenticAMD" or "HygonGenuine". */ > - else if ((ebx == 0x68747541 && ecx == 0x444d4163 && edx == 0x69746e65) > - || (ebx == 0x6f677948 && ecx == 0x656e6975 && edx == 0x6e65476e)) > + /* This spells out "AuthenticAMD". */ > + else if (ebx == 0x68747541 && ecx == 0x444d4163 && edx == 0x69746e65) > { > unsigned int extended_model; > > @@ -1104,6 +1103,20 @@ https://www.intel.com/content/www/us/en/support/articles/000059422/processors.ht > } > } > } > + /* This spells out "HygonGenuine". */ > + else if (ebx == 0x6f677948 && ecx == 0x656e6975 && edx == 0x6e65476e) > + { > + unsigned int extended_model; > + > + kind = arch_kind_hygon; > + > + get_common_indices (cpu_features, &family, &model, &extended_model, > + &stepping); > + > + get_extended_indices (cpu_features); > + > + update_active (cpu_features); > + } > else > { > kind = arch_kind_other; > diff --git a/sysdeps/x86/include/cpu-features.h b/sysdeps/x86/include/cpu-features.h > index aaae44f0e1..b8e790c8fd 100644 > --- a/sysdeps/x86/include/cpu-features.h > +++ b/sysdeps/x86/include/cpu-features.h > @@ -881,6 +881,7 @@ enum cpu_features_kind > arch_kind_intel, > arch_kind_amd, > arch_kind_zhaoxin, > + arch_kind_hygon, > arch_kind_other > }; > > -- > 2.43.0 > LGTM. Reviewed-by: H.J. Lu <hjl.tools@gmail.com> Thanks.
diff --git a/sysdeps/x86/cpu-features.c b/sysdeps/x86/cpu-features.c index 0fb50f9432..e6139e2837 100644 --- a/sysdeps/x86/cpu-features.c +++ b/sysdeps/x86/cpu-features.c @@ -986,9 +986,8 @@ https://www.intel.com/content/www/us/en/support/articles/000059422/processors.ht cpu_features->preferred[index_arch_Avoid_Short_Distance_REP_MOVSB] |= bit_arch_Avoid_Short_Distance_REP_MOVSB; } - /* This spells out "AuthenticAMD" or "HygonGenuine". */ - else if ((ebx == 0x68747541 && ecx == 0x444d4163 && edx == 0x69746e65) - || (ebx == 0x6f677948 && ecx == 0x656e6975 && edx == 0x6e65476e)) + /* This spells out "AuthenticAMD". */ + else if (ebx == 0x68747541 && ecx == 0x444d4163 && edx == 0x69746e65) { unsigned int extended_model; @@ -1104,6 +1103,20 @@ https://www.intel.com/content/www/us/en/support/articles/000059422/processors.ht } } } + /* This spells out "HygonGenuine". */ + else if (ebx == 0x6f677948 && ecx == 0x656e6975 && edx == 0x6e65476e) + { + unsigned int extended_model; + + kind = arch_kind_hygon; + + get_common_indices (cpu_features, &family, &model, &extended_model, + &stepping); + + get_extended_indices (cpu_features); + + update_active (cpu_features); + } else { kind = arch_kind_other; diff --git a/sysdeps/x86/include/cpu-features.h b/sysdeps/x86/include/cpu-features.h index aaae44f0e1..b8e790c8fd 100644 --- a/sysdeps/x86/include/cpu-features.h +++ b/sysdeps/x86/include/cpu-features.h @@ -881,6 +881,7 @@ enum cpu_features_kind arch_kind_intel, arch_kind_amd, arch_kind_zhaoxin, + arch_kind_hygon, arch_kind_other };