[Linaro-mm-sig] [PATCH 08/10] mm: cma: Contiguous Memory Allocator added
mina86 at mina86.com
Tue Jun 14 16:58:35 UTC 2011
>> On Tue, 14 Jun 2011 15:49:29 +0200, Arnd Bergmann <arnd at 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
> 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.
Best regards, _ _
.o. | Liege of Serenely Enlightened Majesty of o' \,=./ `o
..o | Computer Science, Michal "mina86" Nazarewicz (o o)
ooo +-----<email/xmpp: mnazarewicz at google.com>-----ooO--(_)--Ooo--
More information about the Linaro-mm-sig