arch/Config.in.x86: add Intel and AMD GCC targets
Sync the Intel and AMD CPU target list with GCC 13.
Multiple references are used for flags and synonyms [0] [1] [2] [3].
For Intel:
Add Ivy Bridge, Sierra Forest, Grand Ridge, Knights Landing, Knights
Mill, Granite Rapids, and Granite Rapids-D.
The Sapphire Rapids CPU target supports Emerald Rapids.
The Alder Lake CPU target supports Raptor Lake and Meteor Lake.
Note: Knights Landing/Mills are based on Xeon Phi and do support
some AVX512 extensions, but not the full subset required by
BR2_X86_CPU_HAS_AVX512
For AMD:
Add Bobcat, Bulldozer, Piledriver, Excavator, and Zen 1-4.
Add a comment to BR2_X86_CPU_HAS_AVX512 to explain the expected
extensions supported by the CPU. This flag was first selected by
skylake-avx512 and encompasses what appears to be a standard subset
across CPUs [3] and chapter 3 of the x86-64 psABI [4]:
AVX512F, AVX512BW, AVX512CD, AVX512DQ, AVX512VL
CPUs selecting this flag should, at a minimum, support this subset of
AVX512 extensions.
[0]: https://gcc.gnu.org/onlinedocs/gcc-13.2.0/gcc/x86-Options.html
[1]: https://gcc.gnu.org/git/?p=gcc.git;a=blob_plain;f=gcc/config/i386/i386.h;hb=refs/tags/releases/gcc-13.2.0
[2]: https://gcc.gnu.org/git/?p=gcc.git;a=blob_plain;f=gcc/common/config/i386/i386-common.cc;hb=refs/tags/releases/gcc-13.2.0
[3]: https://en.wikipedia.org/wiki/AVX-512#CPUs_with_AVX-512
[4]: https://gitlab.com/x86-psABIs/x86-64-ABI/-/raw/master/x86-64-ABI/low-level-sys-info.tex
Signed-off-by: Vincent Fazio <vfazio@gmail.com>
Signed-off-by: Thomas Petazzoni <thomas.petazzoni@bootlin.com>
22e476d788