[PATCH v3 09/12] x86: Enable SSE in 64-bit mode

[Simon Glass]

Hi Bin,

On Sun, 5 Nov 2023 at 14:05, Bin Meng <bmeng.cn at gmail.com> wrote:
>
> Hi Simon,
>
> On Mon, Oct 2, 2023 at 9:15 AM Simon Glass <sjg at chromium.org> wrote:
> >
> > This is needed to support Truetype fonts. In any case, the compiler
> > expects SSE to be available in 64-bit mode. Enable it.
> >
> > Signed-off-by: Simon Glass <sjg at chromium.org>
> > Suggested-by: Bin Meng <bmeng.cn at gmail.com>
> > ---
> >
> > (no changes since v1)
> >
> >  arch/x86/config.mk        |  1 -
> >  arch/x86/cpu/x86_64/cpu.c | 11 +++++++++++
> >  2 files changed, 11 insertions(+), 1 deletion(-)
> >
>
> I didn't suggest we enable SSE for x86. This is the wrong approach.
>
> We should rewrite the Truetype support codes to avoid using float/double types.
>
> This way the Truetype codes can be used on any other architectures
> without the need for the compiler to emit explicit floating
> instructions.

I am not aware of any such library. At present, enabling truetype on
coreboot64 causes a hang.

Regards,
Simon