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

On Mon, Aug 15, 2011 at 5:09 PM, Jean-Christophe PLAGNIOL-VILLARD
[off-list ref] wrote:

On 10:59 Mon 15 Aug ? ? , Arnd Bergmann wrote:

quoted

On Monday 15 August 2011 11:09:52 Leo Yan wrote:

quoted

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 <redacted>
---
?arch/arm/Kconfig ? ? ? ? ? ? ? ? ? ? ?| ? ?1 +
?arch/arm/mach-mmp/Makefile ? ? ? ? ? ?| ? ?2 +-
?arch/arm/mach-mmp/include/mach/sram.h | ? 35 +++++++
?arch/arm/mach-mmp/sram.c ? ? ? ? ? ? ?| ?168 +++++++++++++++++++++++++++++++++
?4 files changed, 205 insertions(+), 1 deletions(-)
?create mode 100644 arch/arm/mach-mmp/include/mach/sram.h
?create 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.

Thanks
Haojian