Messages in this thread | | | From | Ingo Oeser <> | Subject | Re: Driver-level memory management | Date | Mon, 13 Aug 2007 02:37:50 +0200 |
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Hi Michael,
On Sunday 12 August 2007, Michael Bourgeous wrote: > I'm working on a driver for older HDTV cards based on the TL880 chip. > These cards typically have 16MB of their own memory, which is > available to me over the PCI bus. Various functions of the card > require me to manage this memory, allocating and freeing chunks of it > as necessary. I can easily include my own allocation and management > code,
Ok.
> but I'm sure this is a problem that has been solved before.
Yes!
in your Kconfig
select GENERIC_ALLOCATOR
in your driver.c
#include <linux/genalloc.h>
Code is in lib/genalloc.c, if you like to take a look.
Memory for MANAGING free/allocated space is NOT taken from your on-card memory! That allocator is explicitly developed for such use cases.
Happy hacking!
Best regards
Ingo Oeser - 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/
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