[snip] > >> Willy is correct - writes to this IO space (0xf0000000) address is > >> uncached. > > mmm, is it the reason why you (I mean hp engineers) call it "f-space": IO > > space addresses starting by 0xf? > > Yes. > > grant > Cool ;<) Btw, a while back, I dream to use relayfs to grab debug info. (<http://lists.parisc-linux.org/pipermail/parisc-linux/2006-April/053237.html>) Somebody else write it: <http://lkml.org/lkml/2007/11/13/208> Obviously, I have to instrument things manually but I test it succesfully. Here is already some primarily data test: [snip] :1201001199222127606:ccio_map_single_1:ccio_map_single() 0x1eb91896 -> 0x63b4896 size: 0x1000 :1201001199222203288:ccio_map_single_2: pdir 1fcb1da0 038100000eb91017 :1201001199222391065:ccio_map_single_1:ccio_map_single() 0x1febc096 -> 0x63b5096 size: 0x1000 :1201001199222460820:ccio_map_single_2: pdir 1fcb1da8 02a800000febc017 :1201001199222687339:ccio_map_single_1:ccio_map_single() 0x1eae7896 -> 0x63b6896 size: 0x1000 :1201001199222759615:ccio_map_single_2: pdir 1fcb1db0 02fb00000eae7017 :1201001199223529366:ccio_unmap_single_1:ccio_unmap_single() iovp 0x63b4896/5ea :1201001199226080604:ccio_unmap_single_1:ccio_unmap_single() iovp 0x63b5096/5ea :1201001199226146742:ccio_unmap_single_1:ccio_unmap_single() iovp 0x63b6896/5ea :1201001199226443370:ccio_map_single_1:ccio_map_single() 0x1dc5f096 -> 0x63b7096 size: 0x1000 :1201001199226517113:ccio_map_single_2: pdir 1fcb1db8 005700000dc5f017 :1201001199226737227:ccio_map_single_1:ccio_map_single() 0x1dc7b096 -> 0x63b8096 size: 0x1000 :1201001199226807153:ccio_map_single_2: pdir 1fcb1dc0 007700000dc7b017 :1201001199226990619:ccio_map_single_1:ccio_map_single() 0x1dedf896 -> 0x63b9896 size: 0x1000 :1201001199227060207:ccio_map_single_2: pdir 1fcb1dc8 02c700000dedf017 :1201001199227877694:ccio_unmap_single_1:ccio_unmap_single() iovp 0x63b7096/5ea :1201001199230211964:ccio_unmap_single_1:ccio_unmap_single() iovp 0x63b8096/5ea :1201001199230277457:ccio_unmap_single_1:ccio_unmap_single() iovp 0x63b9896/3aa :1201001199932184243:ccio_map_single_1:ccio_map_single() 0x1dedf896 -> 0x63ba896 size: 0x1000 :1201001199932262292:ccio_map_single_2: pdir 1fcb1dd0 02c700000dedf017 :1201001199932471488:ccio_map_single_1:ccio_map_single() 0x1dc7b096 -> 0x63bb096 size: 0x1000 :1201001199932540658:ccio_map_single_2: pdir 1fcb1dd8 007700000dc7b017 :1201001199932742704:ccio_map_single_1:ccio_map_single() 0x1dc5f096 -> 0x63bc096 size: 0x1000 [snip] Exciting results? (just what would give me DEBUG_RUN() printk() but without degrading system performance) I still have to had some more DEBUG_RUN_SG() stuff and hope to be able to collect more. Cheers, r. --- Scarlet One, ADSL 6 Mbps + Telephone, from EUR 29,95... http://www.scarlet.be/ - To unsubscribe from this list: send the line "unsubscribe linux-parisc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html