Re: [PATCH 00/17][linux-yocto-3.0:meta] preempt-rt update (3.0.1-rt8 scc's)

[Bruce Ashfield <bruce.ashfield@windriver.com>]

On 11-08-11 04:23 AM, Darren Hart wrote:
> The following series adds the necessary scc files in support of preempt-rt
> for the following machines. These have all been build tested, issues
> are noted below.  A handful have been boot tested, also noted.
> 	sugarbay
> 	common-pc (boots)
> 	common-pc-64
> 	jasperforest
> 	fri2
> 	fishriver
> 	emenlow
> 	crownbay (boots)add5f74557fb069f6f15d25bd5d953c148e5d18b
> 	qemuarm (arm-versatile-926ejs, boots)
> 	qemumips (mti-malta32-be, panics on boot)
> 	qemuppc (boot hangs with lost interrupts for hda)
> 	routerstationpro (build fails)
> 	mpc8315e-rdb
> 	beagleboard (build fails)

Ack'd. This is good data, and we'll pull this in, since
it improves the situation greatly. There is no guarantee
that -rt will build and boot on ALL bsps, so having some
non-functional boards is consistent with that approach.

I recall you mentioning that you'd open bugs for the issue,
and that is a good idea. We can use it to track any efforts
on this in the 1.1 and 1.1+ timeframe. We can disable
the support in recipe space, or in the kernel before 1.1
is released, if we don't get any of the issues you raise
addressed.

>
> Also included in the series are some preempt-rt related configuration
> changes and a minor correction to a fix made for the mpc8315e-rdb compilation
> breakage with -Os in the boot Makefile.

I just made a similar fix here, so we'll keep it pushed down, but
keep the patch validation step happy.

>
> The accompanying linux-yocto-rt recipes will follow once these are committed,
> and I have SRC_REVs to include in the recipes.
>
> note: approximately 17 hadrosaurs were converted to electricity to complete
>        the necessary test builds.

17!

> The following changes since commit c692a2320dd10c7f3ac89f474f4bdd302da56634:
>
>    meta/rt: remove explicit patch references (2011-08-10 00:16:17 -0400)
>
> are available in the git repository at:
>    git://git.kernel.org/pub/scm/linux/kernel/git/dvhart/yocto/linux-yocto-3.0.git dvhart/meta

Merging has commenced, it will be in the upcoming pull
request.

Bruce

>
> Darren Hart (17):
>    meta/rt: use CONFIG_PREEMPT_RT_FULL for 3.0 kernels
>    meta/rt: beagleboard preempt-rt support
>    meta/rt: mpc8315 preempt-rt support
>    meta-rt: rsp preempt-rt support
>    meta/rt: qemu-ppc32 preempt-rt support
>    meta/rt: mti-malta32-be preempt-rt support
>    meta/rt: arm-versatile-926ejs preempt-rt support
>    meta/rt: crownbay preempt-rt support
>    meta/rt: emenlow preempt-rt support
>    meta/rt: fishriver preempt-rt support
>    meta/rt: fri2 preempt-rt support
>    meta/rt: jasperforest preempt-rt support
>    meta/rt: common-pc[-64] preempt-rt no branch fix
>    meta/rt: sugarbay preempt-rt support
>    mpc8315e-rdb: remove boot -Os patch which is now in base
>    routerstationpro: add remove-superfluous-endif patch to scc
>    routerstationpro: remove CONFIG_PREEMPT* definitions
>
>   .../arm-versatile-926ejs-preempt-rt.scc            |    7 ++++
>   .../bsp/beagleboard/beagleboard-preempt-rt.scc     |    7 ++++
>   .../bsp/common-pc-64/common-pc-64-preempt-rt.scc   |    4 +-
>   .../bsp/common-pc/common-pc-preempt-rt.scc         |    4 +-
>   .../bsp/crownbay/crownbay-preempt-rt.scc           |    7 ++++
>   .../bsp/emenlow/emenlow-preempt-rt.scc             |    7 ++++
>   .../bsp/fishriver/fishriver-preempt-rt.scc         |    7 ++++
>   meta/cfg/kernel-cache/bsp/fri2/fri2-preempt-rt.scc |    7 ++++
>   .../fsl-mpc8315e-rdb-preempt-rt.scc                |    7 ++++
>   .../bsp/fsl-mpc8315e-rdb/fsl-mpc8315e-rdb.scc      |    1 -
>   .../powerpc-boot-remove-Os-from-BOOTFLAGS.patch    |   35 -------------------
>   .../bsp/jasperforest/jasperforest-preempt-rt.scc   |    8 ++++
>   .../bsp/mti-malta32/mti-malta32-be-preempt-rt.scc  |    8 ++++
>   .../bsp/qemu-ppc32/qemu-ppc32-preempt-rt.scc       |    7 ++++
>   .../remove-superfluous-endif-in-gpio-Kconfig.patch |   36 ++++++++++++++++++++
>   .../routerstationpro-preempt-rt.scc                |    7 ++++
>   .../bsp/routerstationpro/routerstationpro.cfg      |    3 --
>   .../bsp/routerstationpro/routerstationpro.scc      |    1 +
>   .../bsp/sugarbay/sugarbay-preempt-rt.scc           |    8 ++++
>   .../kernel-cache/ktypes/preempt-rt/preempt-rt.cfg  |    2 +-
>   20 files changed, 129 insertions(+), 44 deletions(-)
>   create mode 100644 meta/cfg/kernel-cache/bsp/arm-versatile-926ejs/arm-versatile-926ejs-preempt-rt.scc
>   create mode 100644 meta/cfg/kernel-cache/bsp/beagleboard/beagleboard-preempt-rt.scc
>   create mode 100644 meta/cfg/kernel-cache/bsp/crownbay/crownbay-preempt-rt.scc
>   create mode 100644 meta/cfg/kernel-cache/bsp/emenlow/emenlow-preempt-rt.scc
>   create mode 100644 meta/cfg/kernel-cache/bsp/fishriver/fishriver-preempt-rt.scc
>   create mode 100644 meta/cfg/kernel-cache/bsp/fri2/fri2-preempt-rt.scc
>   create mode 100644 meta/cfg/kernel-cache/bsp/fsl-mpc8315e-rdb/fsl-mpc8315e-rdb-preempt-rt.scc
>   delete mode 100644 meta/cfg/kernel-cache/bsp/fsl-mpc8315e-rdb/powerpc-boot-remove-Os-from-BOOTFLAGS.patch
>   create mode 100644 meta/cfg/kernel-cache/bsp/jasperforest/jasperforest-preempt-rt.scc
>   create mode 100644 meta/cfg/kernel-cache/bsp/mti-malta32/mti-malta32-be-preempt-rt.scc
>   create mode 100644 meta/cfg/kernel-cache/bsp/qemu-ppc32/qemu-ppc32-preempt-rt.scc
>   create mode 100644 meta/cfg/kernel-cache/bsp/routerstationpro/remove-superfluous-endif-in-gpio-Kconfig.patch
>   create mode 100644 meta/cfg/kernel-cache/bsp/routerstationpro/routerstationpro-preempt-rt.scc
>   create mode 100644 meta/cfg/kernel-cache/bsp/sugarbay/sugarbay-preempt-rt.scc
>