[L4alpha-cvscommit] Re: CVS: L4Alpha/pal/21264/macros dp264.mar,1.7,1.8

[Daniel P. <da...@cs...>]

And again, bad log message (I did commit these urgh).

Removing this (reasonably reduntant store) speeds up IPI's by about 200
cycles!

On Sun, 10 Feb 2002, Daniel Potts wrote:

> Update of /cvsroot/l4alpha/L4Alpha/pal/21264/macros
> In directory usw-pr-cvs1:/tmp/cvs-serv32332/pal/21264/macros
>
> Modified Files:
> 	dp264.mar
> Log Message:
> (Finally) added support for read-only pages.
>
> Tested on 21264 only.
> WARNING: The 21064 and 21164 updates will come in a later commit.
>
>
> Index: dp264.mar
> ===================================================================
> RCS file: /cvsroot/l4alpha/L4Alpha/pal/21264/macros/dp264.mar,v
> retrieving revision 1.7
> retrieving revision 1.8
> diff -C2 -d -r1.7 -r1.8
> *** dp264.mar	13 Apr 2001 05:45:52 -0000	1.7
> --- dp264.mar	10 Feb 2002 12:37:58 -0000	1.8
> ***************
> *** 65,69 ****
>   	sll	tmp1, #28, tmp1			; move into place
>   	stq_p	tmp2, ^x80(tmp1)		; write to 801.A000.0080
> ! 	ldq_p	tmp2, ^x80(tmp1)		; make sure write completes
>   	mb
>   .endm
> --- 65,69 ----
>   	sll	tmp1, #28, tmp1			; move into place
>   	stq_p	tmp2, ^x80(tmp1)		; write to 801.A000.0080
> ! ;	ldq_p	tmp2, ^x80(tmp1)		; make sure write completes
>   	mb
>   .endm
>

--
http://www.cse.unsw.edu.au/~danielp