Atsushi Nemoto wrote: > >>>>> On Sat, 17 May 2003 21:45:55 +0900 (JST), Atsushi Nemoto <anemo@xxxxxxxxxxxxx> said: > > anemo> On TX39/TX49, high 16MB in virtual address space > anemo> (0xff000000-0xffffffff) are reserved and can not be used as > anemo> normal mapped/cached segment. > > anemo> This patch fixes FIXADDR_TOP for TX39/TX49. FIXADDR_TOP is > anemo> used not only if CONFIG_HIGHMEM is enabled. It is also used > anemo> for high limit address for vmalloc. > > anemo> This patch can be applied to both 2.4 and 2.5. I'm not sure > anemo> whether subtracting 0x2000 is necessary or not but doing it is > anemo> a safe bet. Please apply. > > This patch can still be applied to 2.6. Could you apply? > > --- linux-mips/include/asm-mips/fixmap.h Sat Nov 27 00:39:25 2004 > +++ linux/include/asm-mips/fixmap.h Sat Dec 18 21:21:01 2004 > @@ -70,7 +70,11 @@ > * the start of the fixmap, and leave one page empty > * at the top of mem.. > */ > +#if defined(CONFIG_CPU_TX39XX) || defined(CONFIG_CPU_TX49XX) > +#define FIXADDR_TOP (0xff000000UL - 0x2000) > +#else > #define FIXADDR_TOP (0xffffe000UL) I figure it's PAGE_SIZE which should be subtracted here. (Or is it 2 * PAGE_SIZE for paired r4k-style TLBs?) Thiemo
