Re: [U-Boot] OMAP3 performance regression in 2011.12

2012-01-17 Thread Måns Rullgård
Aneesh V writes: > Hi Joe, > > On Monday 09 January 2012 09:18 PM, Joe Woodward wrote: > >> If I take the 2011.12 uBoot release the kernel takes about twice the >> time to boot (compared to 2011.09), and the device is noticably >> slower. >> >> Then if I comment out the v7_out_cache_disable() lin

Re: [U-Boot] OMAP3 performance regression in 2011.12

2012-01-17 Thread Aneesh V
On Tuesday 17 January 2012 08:21 PM, Måns Rullgård wrote: Aneesh V writes: Hi Joe, On Monday 09 January 2012 09:18 PM, Joe Woodward wrote: If I take the 2011.12 uBoot release the kernel takes about twice the time to boot (compared to 2011.09), and the device is noticably slower. Then if I

Re: [U-Boot] OMAP3 performance regression in 2011.12

2012-01-17 Thread Aneesh V
Hi Joe, On Monday 09 January 2012 09:18 PM, Joe Woodward wrote: (apologies for previous top posting, wasn't paying attention to what I was doing!) I'm fairly certain... If I take the 2011.12 uBoot release the kernel takes about twice the time to boot (compared to 2011.09), and the device

Re: [U-Boot] OMAP3 performance regression in 2011.12

2012-01-16 Thread Andreas Müller
On Monday, January 16, 2012 05:34:12 PM Philip Balister wrote: > > I built u-boot with this change reverted and compared the amount of time > it took to build sip from source. > > Reverting the change improved compile time by about a factor of four, so > it looks like the kernel does not properly

Re: [U-Boot] OMAP3 performance regression in 2011.12

2012-01-16 Thread Philip Balister
>>> -Original Message- >>>> From: Tom Rini >>>> To: Joe Woodward >>>> Cc: u-boot@lists.denx.de >>>> Date: Mon, 9 Jan 2012 08:11:07 -0700 >>>> Subject: Re: [U-Boot] OMAP3 performance regression in 2011.12 >

Re: [U-Boot] OMAP3 performance regression in 2011.12

2012-01-16 Thread Joe Woodward
AP3 in Linux but haven't got round to it yet! Cheers, Joe > Philip > > On 01/09/2012 10:48 AM, Joe Woodward wrote: > >> -Original Message- > >> From: Tom Rini > >> To: Joe Woodward > >> Cc: u-boot@lists.denx.de > >> Date: Mon, 9

Re: [U-Boot] OMAP3 performance regression in 2011.12

2012-01-09 Thread Joe Woodward
> -Original Message- > From: Tom Rini > To: Joe Woodward > Cc: u-boot@lists.denx.de > Date: Mon, 9 Jan 2012 08:11:07 -0700 > Subject: Re: [U-Boot] OMAP3 performance regression in 2011.12 > > > On Mon, Jan 9, 2012 at 3:27 AM, Joe Woodward > wrote: > &g

Re: [U-Boot] OMAP3 performance regression in 2011.12

2012-01-09 Thread Joe Woodward
e way v7_out_cache_disable() disables L2 is not compatible with the way the kernel expects to re-enable it? Cheers, Joe -Original Message- From: Tom Rini To: Joe Woodward Cc: u-boot@lists.denx.de Date: Mon, 9 Jan 2012 08:11:07 -0700 Subject: Re: [U-Boot] OMAP3 performance regression in 20

Re: [U-Boot] OMAP3 performance regression in 2011.12

2012-01-09 Thread Tom Rini
On Mon, Jan 9, 2012 at 3:27 AM, Joe Woodward wrote: > Commit "armv7: disable L2 cache in cleanup_before_linux()" on 6th Dec 2011 by > Aneesh V adds the following: > > arch/arm/cpu/armv7/cpu.c:cleanup_before_linux() > > ... > v7_out_cache_disable(); > ... > > The commit message implies this change

[U-Boot] OMAP3 performance regression in 2011.12

2012-01-09 Thread Joe Woodward
Commit "armv7: disable L2 cache in cleanup_before_linux()" on 6th Dec 2011 by Aneesh V adds the following: arch/arm/cpu/armv7/cpu.c:cleanup_before_linux() ... v7_out_cache_disable(); ... The commit message implies this change was to make booting reliable on OMAP4 by disabling L2 cache before j