patch - KGDB read and write of IO registers

patch - KGDB read and write of IO registers

[Frank Rowand]

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Tom,

Please apply the attached patch to linuxppc_2_4_devel.

The patch allows IO device registers to be accessed by KGDB via word
(or halfword) loads and stores for word (or halfword) sized objects
when naturally aligned.  The previous behaviour was to always do
byte load and stores which can result in side effects when accessing
an IO device register.

A second fix in the patch is to pass the correct address to
flush_icache_range() when writing to memory in hex2mem().

Thanks!

-Frank
--
Frank Rowand <frank_rowand@mvista.com>
MontaVista Software, Inc

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Re: patch - KGDB read and write of IO registers

[Tom Rini]

On Fri, Dec 21, 2001 at 02:49:47PM -0800, Frank Rowand wrote:

> The patch allows IO device registers to be accessed by KGDB via word
> (or halfword) loads and stores for word (or halfword) sized objects
> when naturally aligned.  The previous behaviour was to always do
> byte load and stores which can result in side effects when accessing
> an IO device register.
>
> A second fix in the patch is to pass the correct address to
> flush_icache_range() when writing to memory in hex2mem().

Looks good, applied.

--
Tom

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