For most targets it's known if the CPU supports alternative SMRR
registers or not. Only on model_6fx runtime detection is necessary.
On all platforms this allows the compiler to optimize the code and
thus shrink the code size if alternative SMRR aren't supported.
TEST=On Lenovo X220 the ramstage is 308 bytes smaller.
Change-Id: I3a965d142f79ad587b8cedc9b4646b05e2a45f8b
Signed-off-by: Patrick Rudolph <patrick.rudolph@9elements.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/91014
Reviewed-by: Paul Menzel <paulepanter@mailbox.org>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Angel Pons <th3fanbus@gmail.com>
fd2cdf206d