Enable DCache Streaming Switch and Write Allocate for Sheeva

[Masanobu SAITOH <msaitoh%execsw.org@localhost>]

 Hi.

 Before this change:

(pkgsrc/benchmarks/ramspeed)
> openrd(msaitoh)% ramspeed -b 1
> RAMspeed (GENERIC) v2.6.0 by Rhett M. Hollander and Paul V. Bolotoff, 2002-09
>
> 8Gb per pass mode
>
> INTEGER & WRITING         1 Kb block: 432.88 MB/s
> INTEGER & WRITING         2 Kb block: 433.11 MB/s
> INTEGER & WRITING         4 Kb block: 432.87 MB/s
> INTEGER & WRITING         8 Kb block: 431.78 MB/s
> INTEGER & WRITING        16 Kb block: 431.40 MB/s
> INTEGER & WRITING        32 Kb block: 431.45 MB/s
> INTEGER & WRITING        64 Kb block: 431.97 MB/s
> INTEGER & WRITING       128 Kb block: 431.55 MB/s
> INTEGER & WRITING       256 Kb block: 428.63 MB/s
> INTEGER & WRITING       512 Kb block: 428.64 MB/s
> INTEGER & WRITING      1024 Kb block: 428.24 MB/s
> INTEGER & WRITING      2048 Kb block: 427.69 MB/s
> INTEGER & WRITING      4096 Kb block: 428.33 MB/s
> INTEGER & WRITING      8192 Kb block: 428.53 MB/s
> INTEGER & WRITING     16384 Kb block: 428.48 MB/s
> INTEGER & WRITING     32768 Kb block: 428.50 MB/s

 After this change:

> openrd(msaitoh)% ramspeed -b 1
> RAMspeed (GENERIC) v2.6.0 by Rhett M. Hollander and Paul V. Bolotoff, 2002-09
>
> 8Gb per pass mode
>
> INTEGER & WRITING         1 Kb block: 4158.32 MB/s
> INTEGER & WRITING         2 Kb block: 4296.43 MB/s
> INTEGER & WRITING         4 Kb block: 4368.23 MB/s
> INTEGER & WRITING         8 Kb block: 4394.32 MB/s
> INTEGER & WRITING        16 Kb block: 4199.11 MB/s
> INTEGER & WRITING        32 Kb block: 610.54 MB/s
> INTEGER & WRITING        64 Kb block: 490.19 MB/s
> INTEGER & WRITING       128 Kb block: 446.70 MB/s
> INTEGER & WRITING       256 Kb block: 431.96 MB/s
> INTEGER & WRITING       512 Kb block: 430.25 MB/s
> INTEGER & WRITING      1024 Kb block: 450.19 MB/s
> INTEGER & WRITING      2048 Kb block: 448.82 MB/s
> INTEGER & WRITING      4096 Kb block: 447.88 MB/s
> INTEGER & WRITING      8192 Kb block: 448.24 MB/s
> INTEGER & WRITING     16384 Kb block: 448.39 MB/s
> INTEGER & WRITING     32768 Kb block: 448.36 MB/s

 Have fun!


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Date: Fri, 28 Dec 2012 03:48:00 +0000
From: SAITOH Masanobu <msaitoh%netbsd.org@localhost>
Subject: CVS commit: src/sys/arch/arm/arm
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Module Name:    src
Committed By:   msaitoh
Date:           Fri Dec 28 03:48:00 UTC 2012

Modified Files:
        src/sys/arch/arm/arm: cpufunc.c

Log Message:
Enable DCache Streaming Switch and Write Allocate.
This change improve system performance significantly.


To generate a diff of this commit:
cvs rdiff -u -r1.118 -r1.119 src/sys/arch/arm/arm/cpufunc.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.