On Oct 8, 2009, at 12:22 PM, Joakim Tjernlund wrote:
hare are comments in the kernel that dcbst wrongly generates TLB Errors with store set on 8xx. Is this really so? Should dcbst always trap as a load?
There are many comments written about 8xx as various behavior was discovered. Worse, some of these details would be different among the different processor versions. You need to be careful and test as many different part versions as possible to ensure you have everything covered..... then someone will find a part that doesn't quite work, "fix" it, and break others :-) In this particular case, the PEM does state dcbst is treated as a load, but from experience we know 8xx doesn't work that way. Of course, since dcbst is a store operation, you could argue that 8xx got it correct :-) Have fun! -- Dan _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev