Re: [PATCH 1/3] ARM: mmp: add sram allocator

[Tony Lindgren]

* Haojian Zhuang <haojian.zhuang@xxxxxxxxx> [110815 01:57]:
> On Mon, Aug 15, 2011 at 5:09 PM, Jean-Christophe PLAGNIOL-VILLARD
> <plagnioj@xxxxxxxxxxxx> wrote:
> > On 10:59 Mon 15 Aug   , Arnd Bergmann wrote:
> >> On Monday 15 August 2011 11:09:52 Leo Yan wrote:
> >> > On mmp platform, there have two sram banks:
> >> > audio sram and internal sram. The audio sram is mainly for audio;
> >> > the internal sram is for video, wtm and power management.
> >> > So add the sram allocator using genalloc to manage them.
> >> >
> >> > Every sram bank will register its own platform device
> >> > info, after the sram allocator create the generic pool
> >> > for the sram bank, the user module can use the pool's
> >> > name to get the pool handler; then it can use the handler
> >> > to alloc/free memory with genalloc APIs.
> >> >
> >> > Signed-off-by: Leo Yan <leoy@xxxxxxxxxxx>
> >> > ---
> >> > Âarch/arm/Kconfig           Â|  Â1 +
> >> > Âarch/arm/mach-mmp/Makefile      Â|  Â2 +-
> >> > Âarch/arm/mach-mmp/include/mach/sram.h | Â 35 +++++++
> >> > Âarch/arm/mach-mmp/sram.c       Â| Â168 +++++++++++++++++++++++++++++++++
> >> > Â4 files changed, 205 insertions(+), 1 deletions(-)
> >> > Âcreate mode 100644 arch/arm/mach-mmp/include/mach/sram.h
> >> > Âcreate mode 100644 arch/arm/mach-mmp/sram.c
> >>
> >> Some time ago, there was talk of merging the existing sram drivers
> >> and creating a common driver that is easy to hook into.
> >>
> >> What has happened with that? My feeling is that we should stop adding
> >> more drivers like this in the platform code but rather put an
> >> authoritative copy into arch/arm/mm/ or even the top-level mm/ directory
> >> and change over the existing drivers to hook into that one.
> > no need anymore I send patch to add the support of phys/virt to genalloc so
> > now we just have to use it
> >
> > Best Regards,
> > J.
> >
> Exactly, and Russel already gave up on original patch. genpool is already a
> common driver.

Yeah but it seems that we can make arch/arm/mach-mmp/sram.c posted
in this thread a generic driver instead.

Regards,

Tony
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/