[PATCH 0/2] ARM: EXYNOS4: Enhancement of System MMU

Kyungmin Park wrote:

quoted

Cc'ed Marek.

As I said before, Marek's SystemMMU driver has some problems.

One is that it allocates 4MB virtual memory at once. It is really a

problem

quoted

because, the device memory manager must knows the peculiarity and

handles

quoted

it. Otherwise, page tables can be overwritten...

Are there device drivers using system MMU at mainline? or example codes?
In case of Marek's patches, he posted drivers codes and tested at
multimedia stack.

Another one is what's the difference between MFC drivers case and

SystemMMU

one?

This driver does not have dependency on other device drivers, I thought.

and I hope you read this mail thread.
http://www.mentby.com/Group/linux-kernel/patch-maintainers-update-msm-
maintainers.html

Cite from Linus words.
Actually, "the community" (not that there really is any such cohesive
thing) generally asks that vendors be "involved". Not that vendors be
"exclusively in control". There's a big difference.

Already I read his comments at that time.

I feel you control the s5p codes for vendor purpose.

I'm afraid that you think so. I will try my best to advancement of Linux.

Thanks.

Best regards,
Kgene.
--
Kukjin Kim [off-list ref], Senior Engineer,
SW Solution Development Team, Samsung Electronics Co., Ltd.