On Tue, 14 Jun 2011 15:49:29 +0200, Arnd Bergmann arnd@arndb.de wrote:
Please explain the exact requirements that lead you to defining multiple contexts.
On Tuesday 14 June 2011, Michal Nazarewicz wrote:
Some devices may have access only to some banks of memory. Some devices may use different banks of memory for different purposes.
On Tue, 14 Jun 2011 18:03:00 +0200, Arnd Bergmann wrote:
For all I know, that is something that is only true for a few very special Samsung devices,
Maybe. I'm just answering your question. :)
Ah yes, I forgot that separate regions for different purposes could decrease fragmentation.
I would suggest going forward without having multiple regions:
Is having support for multiple regions a bad thing? Frankly, removing this support will change code from reading context passed as argument to code reading context from global variable. Nothing is gained; functionality is lost.
- Remove the registration of specific addresses from the initial patch set (but keep the patch).
- Add a heuristic plus command-line override to automatically come up with a reasonable location+size for *one* CMA area in the system.
I'm not arguing those.