Messages in this thread | | | Subject | Re: [PATCH][2.4.27] PowerPC 745x data corruption bug fix | From | Adrian Cox <> | Date | Mon, 16 Aug 2004 10:15:39 +0100 |
| |
On Mon, 2004-08-16 at 10:06, Paul Mackerras wrote: > Adrian Cox writes: > > > Pages should be marked coherent for the MPC106 as well as the MPC107,
> The MPC106 has an internal cache? I had a quick look in the 106 and > 107 manuals and I couldn't see in either one where it talks about a > cache. Do you know where I should be looking?
MPC106UM, section 8.1.3.1: PCI to System Memory Read Buffer (PCMRB) MPC107UM, section 12.1.3.1.1: PCI to Local Memory Read Buffer (PCMRB)
It's not a big cache, but it's large enough to hold the transmit descriptor of a pcnet32 ethernet. It's easy to miss this in the manual, and I only noticed it when my first 7450 board wouldn't work with NFS root.
- Adrian Cox Humboldt Solutions Ltd.
- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |