![]() | |||||||||||||
Messages in this thread |
From: Benjamin Herrenschmidt <benh@kernel.crashing.org> Date: Sat, 09 Sep 2006 17:23:20 +1000 > I quite like mem_to_io_* (barrier/rb/wb) and io_to_mem_* in fact :) That > is probably more talkative to device driver writers and would allow more > fine grained barriers. I firmly believe that the average driver person is not going to be able to get these things right, even if you document it in big bold letters in some Documentation/*.txt file. This is like the Alpha OSF outb() interface for kernel drivers that had something like 8 arguments. And even if you define these things, and people start using it, only PowerPC and a few other systems (I guess IA64) will ever notice when this stuff is done wrong. That's really not a good plan from a testing coverage point of view. - 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/ | ||||||||||||
| Last update: 2006-09-09 09:41 [from the cache] ©2003-2008 | |||||||||||||