On Mon, 07 Feb 2005 19:24:50 +0900 (JST)
Atsushi Nemoto <firstname.lastname@example.org> wrote:
> >>>>> On Fri, 4 Feb 2005 15:58:03 +0100, Ralf Baechle <email@example.com>
> >>>>> said:
> ralf> That's not a new feature in the MIPS world; the R10000 family
> ralf> introduced that first and Linux knows how to make use of it. So
> ralf> now I just need to teach c-r4k.c to check the AR bit on the 24K.
> 20KC Users Manual says it has physically indexed data cache.
> --- linux-mips.org/arch/mips/mm/c-r4k.c 2005-02-07 19:06:54.598390493
> +++ linux-mips/arch/mips/mm/c-r4k.c 2005-02-07 19:10:38.779771207 +0900
> @@ -1016,6 +1016,8 @@
> case CPU_R10000:
> case CPU_R12000:
> + case CPU_20KC: /* physically indexed */
> + break;
> case CPU_24K:
> if (!(read_c0_config7() & (1 << 16)))
> For other MIPS64 core, 5Kc has virtually indexed cache. How about 25KF?
25Kf also has virtually indexed cache.