[U-Boot] [PATCH 1/4] armv8: enable compilation with CONFIG_SYS_NONCACHED_MEMORY

[Tom Warren]

TomR,

Any chance of you taking a look at these ARM MMU patches and either taking them in to u-boot/master or ACKing them so I can take them in via the Tegra repo?

Thanks,

TomW

> -----Original Message-----
> From: Tom Warren
> Sent: Friday, November 06, 2015 9:32 AM
> To: 'Albert ARIBAUD' <albert.u.boot at aribaud.net>; 'Stephen Warren'
> <swarren at wwwdotorg.org>; Tom Rini (trini at konsulko.com)
> <trini at konsulko.com>
> Cc: 'u-boot at lists.denx.de' <u-boot at lists.denx.de>; 'Simon Glass'
> <sjg at chromium.org>; Stephen Warren <swarren at nvidia.com>; Thierry Reding
> <treding at nvidia.com>; 'York Sun' <yorksun at freescale.com>; 'Michal Simek'
> <michal.simek at xilinx.com>; 'tomcwarren3959 at gmail.com'
> <tomcwarren3959 at gmail.com>
> Subject: RE: [U-Boot] [PATCH 1/4] armv8: enable compilation with
> CONFIG_SYS_NONCACHED_MEMORY
> 
> Albert,
> 
> Ping!
> 
> > -----Original Message-----
> > From: Tom Warren
> > Sent: Tuesday, November 03, 2015 12:19 PM
> > To: 'Albert ARIBAUD' <albert.u.boot at aribaud.net>; 'Stephen Warren'
> > <swarren at wwwdotorg.org>; Tom Rini (trini at konsulko.com)
> > <trini at konsulko.com>
> > Cc: 'u-boot at lists.denx.de' <u-boot at lists.denx.de>; 'Simon Glass'
> > <sjg at chromium.org>; Stephen Warren <swarren at nvidia.com>; Thierry
> > Reding <treding at nvidia.com>; 'York Sun' <yorksun at freescale.com>; 'Michal
> Simek'
> > <michal.simek at xilinx.com>; 'tomcwarren3959 at gmail.com'
> > <tomcwarren3959 at gmail.com>
> > Subject: RE: [U-Boot] [PATCH 1/4] armv8: enable compilation with
> > CONFIG_SYS_NONCACHED_MEMORY
> >
> > Albert,
> >
> > > -----Original Message-----
> > > From: Tom Warren
> > > Sent: Tuesday, October 27, 2015 1:39 PM
> > > To: 'Albert ARIBAUD' <albert.u.boot at aribaud.net>; Stephen Warren
> > > <swarren at wwwdotorg.org>
> > > Cc: u-boot at lists.denx.de; Simon Glass <sjg at chromium.org>; Stephen
> > > Warren <swarren at nvidia.com>; Thierry Reding <treding at nvidia.com>;
> > > York Sun <yorksun at freescale.com>; Michal Simek
> > > <michal.simek at xilinx.com>
> > > Subject: RE: [U-Boot] [PATCH 1/4] armv8: enable compilation with
> > > CONFIG_SYS_NONCACHED_MEMORY
> > >
> > > Albert,
> > >
> > > > -----Original Message-----
> > > > From: Albert ARIBAUD [mailto:albert.u.boot at aribaud.net]
> > > > Sent: Wednesday, October 21, 2015 11:26 PM
> > > > To: Stephen Warren <swarren at wwwdotorg.org>
> > > > Cc: u-boot at lists.denx.de; Simon Glass <sjg at chromium.org>; Tom
> > > > Warren <TWarren at nvidia.com>; Stephen Warren
> <swarren at nvidia.com>;
> > > > Thierry Reding <treding at nvidia.com>; York Sun
> > > > <yorksun at freescale.com>; Michal Simek <michal.simek at xilinx.com>
> > > > Subject: Re: [U-Boot] [PATCH 1/4] armv8: enable compilation with
> > > > CONFIG_SYS_NONCACHED_MEMORY
> > > >
> > > > Hello Stephen,
> > > >
> > > > On Wed, 21 Oct 2015 10:35:59 -0600, Stephen Warren
> > > > <swarren at wwwdotorg.org> wrote:
> > > > > On 10/05/2015 12:08 PM, Stephen Warren wrote:
> > > > > > From: Stephen Warren <swarren at nvidia.com>
> > > > > >
> > > > > > The implementation of noncached_init() uses define
> > > MMU_SECTION_SIZE.
> > > > > > Define this on ARM64.
> > > > > >
> > > > > > Move the prototype of noncached_{init,alloc}() to a location
> > > > > > that doesn't depend on !defined(CONFIG_ARM64).
> > > > > >
> > > > > > Note that noncached_init() calls
> > > > > > mmu_set_region_dcache_behaviour() which relies on something
> > > > > > having set up translation tables with 2MB block
> > > > size.
> > > > > > The core ARMv8 MMU setup code does not do this by default, but
> > > > > > currently relies on SoC specific MMU setup code. Be aware of
> > > > > > this before enabling this feature on your platform!
> > > > >
> > > > > Albert, it looks like I forgot to add you to the CC on this email.
> > > > > Sorry! Could you please take a look at this series and tell me
> > > > > what you think? If you need a resend just let me know.
> > > > >
> > > > > Also note that this series is a dependency for PCIe support on
> > > > > 64-bit Tegra systems; I guess either Tom Warren would be looking
> > > > > for an ack so he can apply the series to the Tegra tree, or
> > > > > perhaps if you just apply the whole series, he can base his
> > > > > branch on the branch where you apply
> > > > this.
> > > >
> > > > I'll have a look at it in the coming days.
> > > Please let me know when this series is in arm/master (or
> > > u-boot/master), as I need it to base Stephen's PCI/PCIe/XUSB patches
> > > on before I can send a PR for u-boot-tegra/master. Thanks!
> > I need this patchset in before I can add Stephen's PCIe/XUSB patchsets
> > to Tegra U-Boot.
> >
> > If you can Ack them, I can take them in via the Tegra repo, and send
> > them upstream to TomR on my next PR. Or if you can let me know an ETA
> > for getting them in to the ARM/master repo, I can base my schedule off
> > of that. But I'm blocked until the ARMv8 MMU changes are in somewhere,
> > and I'd like to clear this from my plate.
> >
> > Thanks,
> >
> > Tom
> > --
> > nvpublic
> > >
> > > Tom
> --
> nvpublic
> > > >
> > > > Amicalement,
> > > > --
> > > > Albert.