Steve Gehlbach steve@nexpath.com writes:
Eric W. Biederman wrote:
Error. Communications failure. I meant this situation is exactly what it is designed for.
Sorry. I misunderstood.
I am also assuming the Via C3 has the variable MTRRs, that may not be a
correct
assumption. The Intel book says P6 family.
Very good question what does the C3 have? I recall the strange clones not following intels variable mtrrs.
Hard to get this out of Via, they don't do datasheets for ordinary folks, but posts on the newsgroups seem to indicate p6 compatibility in some versions anyway:
From a post in linux.kernel: cat /proc/cpuinfo:
processor : 0 vendor_id : CentaurHauls cpu family : 6 model : 8 model name : VIA C3 Ezra stepping : 9 cpu MHz : 999.910 cache size : 64 KB fdiv_bug : no hlt_bug : no f00f_bug : no coma_bug : no fpu : yes fpu_exception : yes cpuid level : 1 wp : yes flags : fpu de tsc msr cx8 mtrr pge mmx 3dnow bogomips : 1989.22
I'll try the XIP_ROM_SIZE etc tomorrow.
So it looks like they have the normal mtrrs.
For the strange cpus they should be supported in the linux kernel and have code behind /proc/mtrr.
Eric