From: Kylo Ginsberg <kylo.ginsberg@gmail•com>
To: linuxppc-embedded@ozlabs•org
Subject: Mapping full 1 GB of memory on a Freescale Book E part
Date: Thu, 9 Jun 2005 15:09:32 -0700 [thread overview]
Message-ID: <61cc712d0506091509527ee680@mail.gmail.com> (raw)
I'm running 2.6.11 on a Freescale 8555 with 1GB of DDR memory. =20
Looking in arch/ppc/mm/fsl_booke_mmu.c, I see that at most 3 TLB
entries will be used to map memory. Since the max tlb size on
Freescale Book E is 256 MB, this caps mapped in memory at 768 MB.
I've modified fsl_booke_mmu.c to use a 4th TLB, thus mapping the full
1 GB of memory. However, I'm new to linux memory management, so I'd
appreciate any comments as to whether there are tradeoffs or dangers
here that I am missing.
Thanks,
Kylo
next reply other threads:[~2005-06-09 22:09 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-06-09 22:09 Kylo Ginsberg [this message]
2005-06-09 23:07 ` Mapping full 1 GB of memory on a Freescale Book E part Kumar Gala
2005-06-09 23:25 ` Kylo Ginsberg
2005-06-10 1:08 ` Kumar Gala
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