On Sat, 04 Apr 2009 02:21:59 +0200, Carl-Daniel Hailfinger c-d.hailfinger.devel.2006@gmx.net wrote:
On 04.04.2009 01:06, Joseph Smith wrote:
On Sat, 04 Apr 2009 00:26:19 +0200, Carl-Daniel Hailfinger c-d.hailfinger.devel.2006@gmx.net wrote:
[ROMCC->CAR] Great. Will a bad reflash hurt you?
No, as long as it doesn't blow the thing up :-0
Heh. That won't happen unless an endless loop is too much for your cooling setup.
What you need to try this one out:
- a POST card or another way to fetch POST codes.
- tell me whether POST works by default or you need special setup.
- a will to try out v3 with some patches.
Ok, I have a PCI/Parallel Post Card. The RM4100 doesn't have eithor, the IP1000 does have a PCI slot so we can use that for testing.
Good. Can you verify that the PCI POST card works?
Sure
The idea is to test the v3 intel CAR code which has not been on real hardware yet, but it is a much cleaner and more readable implementation compared to v2. I'm hoping we don't need chipset specific stuff for
POST
to work.
Not sure, serial output works fine.
We'll debug very early code, before serial can be set up.
Oh ok.
I need info on the cache size of your processor, though. Unreliable CAR is not nearly as much fun as reliable CAR.
512k
Thanks. Can you find out L1 cache sizes as well? The spec page was not clear about that.
Hmm, Datasheet does not say: http://download.intel.com/design/PentiumIII/datashts/27367305.pdf
It just says: • On-die primary (L1) instruction and data caches — 4-way set associative, 32-byte line size, 1 line per sector — 16-Kbyte instruction cache and 16-Kbyte write-back data cache — Cacheable range controlled by processor programmable registers • On-die second level (L2) cache — 8-way set associative, 32-byte line size, 1 line per sector — Operates at full core speed — 512-Kbyte ECC protected cache data array
And is the processor hyperthreading capable?
No, hyperthreading was not introduced until later P4's
I'll follow up with a patch on Wednesday or Thursday.
Cool. I am going out of town this weekend but I will test out the post card as soon as I can.