Re: [PATCH 8/8] x86: simplify 32-bit instruction set selection
David Laight <[email protected]> Sat, 23 May 2026 11:02:16 +0100
| Newsgroups | org.infradead.lists.linux-um,org.kernel.vger.linux-kernel |
|---|---|
| Message-ID | <20260523110216.2724bf6b@pumpkin> |
On Sat, 23 May 2026 10:51:41 +0200 "Arnd Bergmann" <[email protected]> wrote: > On Fri, May 22, 2026, at 23:33, David Laight wrote: ... > > But neither is really anything like even Sandy bridge. > > Sandy Bridge was well into the 64-bit era. Even when that was > new, you wouldn't have run a 32-bit kernel on it (or cared > about CPU optimizations if you did). For x86-64 there is no > CPU selection and we just always build with -mtune=generic. > This works well with any out-of-order microarchitecture. For some reason I was thinking the same mtune list would apply to 64bit (even though some would clearly be pointless). I probably got fooled by you saying that the other ten are aliases. -- David > > Arnd