I made test on already installed image. Connected with usb network dongle, cloned kernel-source git, made sequence-patch to 4.1 source, copied modified lpae kernel config then booted resulting kernel. This extra modules i tried to add to /etc/modules-load.d/ and system start fine this way without manual modprobing, but this is not same as dracut config as i understand.
I never tried to branch kernel-source repo on obs to create custom config, i can make this test also if you can give me please some directions on how to properly create modified kernel branch. --- Best Regards, Misha Komarovskiy zombahatgmaildotcom On Mon, Aug 17, 2015 at 2:53 PM, Guillaume Gardet <guillaume.gar...@free.fr> wrote: > > > Le 17/08/2015 13:30, Misha Komarovskiy a écrit : >> >> Just tested lpae config without CONFIG_EXYNOS_IOMMU on snow, system >> boots with black screen same, >> then modprobe cros_ec_devs, ptn3460, pwm-samsung makes panel start to >> work without kernel panic. > > > Thanks for your tests. > Could you add thoses modules to /etc/dracut.conf.d/exynos_modules.conf with > the new line: > add_drivers += "cros_ec_devs ptn3460 pwm-samsung" > > and recreate initrd with dracut and check if it boots fine? > > If it does not work, try 'force_drivers+=' instead of 'add_drivers +=' and > recreate initrd. > > > Guillaume > > >> >> --- >> Best Regards, >> Misha Komarovskiy >> zombahatgmaildotcom >> >> >> On Mon, Aug 17, 2015 at 12:01 PM, Misha Komarovskiy <zom...@gmail.com> >> wrote: >>> >>> Hello Guillaume, >>> I tested both exynos_defconfig and multi_v7_defconfig, they work fine. >>> But ill test lpae config without EXYNOS_IOMMU today and will report. >>> --- >>> Best Regards, >>> Misha Komarovskiy >>> zombahatgmaildotcom >>> >>> >>> On Mon, Aug 17, 2015 at 9:59 AM, Guillaume Gardet >>> <guillaume.gar...@free.fr> wrote: >>>> >>>> Hi, >>>> >>>> Le 16/08/2015 21:59, Misha Komarovskiy a écrit : >>>>> >>>>> Hello, >>>>> Maybe we can disable only Exynos IOMMU in configs for now? Same way it >>>>> is disabled in current exynos_defconfig here >>>>> >>>>> >>>>> https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/arch/arm/configs/exynos_defconfig?id=6562f3bd396ab6d2c9b455e95c67e33bab73bff5 >>>>> As i understand it is broken for all exynos devices not only snow. >>>> >>>> >>>> That is exactly what I would like to do since I read this thread: >>>> https://lkml.org/lkml/2015/2/17/163 >>>> >>>> Before submitting the idea here, I wanted to check if disabling Exynos >>>> IOMMU >>>> in config was enough. >>>> I had only time to test the exynos_defconfig with openSUSE kernel and it >>>> was >>>> OK (boot messages and login prompt displayed). >>>> >>>> >>>> Guillaume >>>> >>>> >>>>> --- >>>>> Best Regards, >>>>> Misha Komarovskiy >>>>> zombahatgmaildotcom >>>>> >>>>> >>>>> On Thu, Jul 23, 2015 at 4:29 PM, Alexander Graf <ag...@suse.de> wrote: >>>>>> >>>>>> >>>>>>> Am 23.07.2015 um 15:15 schrieb Andreas Färber <afaer...@suse.de>: >>>>>>> >>>>>>>> Am 23.07.2015 um 15:12 schrieb Alexander Graf: >>>>>>>>> >>>>>>>>> On 07/23/15 14:43, Andreas Färber wrote: >>>>>>>>>> >>>>>>>>>> Am 23.07.2015 um 14:22 schrieb Guillaume Gardet: >>>>>>>>>> Maybe some config options compiled as module (which?) and >>>>>>>>>> blacklisted >>>>>>>>>> for chromebooks could be ok? >>>>>>>>> >>>>>>>>> Maybe. Someone with a Chromebook needs to sit down and try. :) >>>>>>>> >>>>>>>> Hrm, rather than disable it one way or another manually, couldn't we >>>>>>>> just blacklist it inside the kernel? I doubt that we can load iommu >>>>>>>> as >>>>>>>> module... >>>>>>> >>>>>>> You mean as in patch the iommu probe code to check for "google,snow", >>>>>>> "google,spring", etc.? >>>>>> >>>>>> For example - or remove the respective dt node. Or as a property to >>>>>> the >>>>>> IOMMU dt node... >>>>>> >>>>>> Alex >>>>>> >>>>>>> Andreas >>>>>>> >>>>>>> -- >>>>>>> SUSE Linux GmbH, Maxfeldstr. 5, 90409 Nürnberg, Germany >>>>>>> GF: Felix Imendörffer, Jane Smithard, Dilip Upmanyu, Graham Norton; >>>>>>> HRB >>>>>>> 21284 (AG Nürnberg) >>>>>> >>>>>> -- >>>>>> To unsubscribe, e-mail: opensuse-arm+unsubscr...@opensuse.org >>>>>> To contact the owner, e-mail: opensuse-arm+ow...@opensuse.org >>>>>> > -- To unsubscribe, e-mail: opensuse-arm+unsubscr...@opensuse.org To contact the owner, e-mail: opensuse-arm+ow...@opensuse.org
