My patch in attach --- Best Regards, Misha Komarovskiy zombahatgmaildotcom On Mon, Aug 17, 2015 at 4:13 PM, Guillaume Gardet <guillaume.gardet@free.fr> wrote:
Perfect!
I submitted an update request to include it: https://build.opensuse.org/request/show/323645
We still need to update our kernel config to disable exynos IOMMU. But kernel repo is currently broken for master. Could send your config patch against stable kernel (4.1), please?
Guillaume
Le 17/08/2015 14:31, Misha Komarovskiy a écrit :
Adding them with force_drivers do the trick. --- Best Regards, Misha Komarovskiy zombahatgmaildotcom
On Mon, Aug 17, 2015 at 3:09 PM, Guillaume Gardet <guillaume.gardet@free.fr> wrote:
You do not need to modify your kernel for that. Remove your /etc/modules-load.d/ file to get back in non-auto loading.
Open the file '/etc/dracut.conf.d/exynos_modules.conf' and add the following line: add_drivers += "cros_ec_devs ptn3460 pwm-samsung"
Then recreate your initrd with: dracut -f and reboot.
If it does not help, replace: add_drivers += "cros_ec_devs ptn3460 pwm-samsung" by: force_drivers += "cros_ec_devs ptn3460 pwm-samsung"
Then recreate your initrd with: dracut -f and reboot.
Guillaume
Le 17/08/2015 14:04, Misha Komarovskiy a écrit :
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.gardet@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 <zombah@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.gardet@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/... >>> 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 <agraf@suse.de> >>> wrote: >>>> >>>> >>>>> Am 23.07.2015 um 15:15 schrieb Andreas Färber <afaerber@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+unsubscribe@opensuse.org >>>> To contact the owner, e-mail: opensuse-arm+owner@opensuse.org >>>>