cannot boot with linux-libre>=5.7, amdgpu and cryptsetup

[edgarlux at tutanota.de]

My previous e-mail provider does not let me sent e-mails (super fishy). I have been trying to reply for days.

On 2020-07-20 19:57, Denis 'GNUtoo' Carikli wrote:
> On Sun, 19 Jul 2020 03:05:37 +0000
> edgar at openmail.cc wrote:
>
>> I guess that you mean in the Linux source code, not in Linux Libre,
>> right? (I was unable to find that line in my copy of linux-libre 5.7)
> Both will work. Here we're just testing some things so even if you use
> Linux for the tests, we can still re-incorporate the patch in
> linux-libre later on.

If you do a grep on the linux-libre source, that line does not exist:

  #+begin_QUOTE
  ... request_firmware ...
  #+end_QUOTE

I am assuming that you meant this:

  #+begin_SRC C
    err = reject_firmware(&adev->firmware.gpu_info_fw, fw_name, adev->dev);
  #+end_SRC

=request_firmware= from linux was replaced by =reject_firmware= in linux-libre

I followed the instructions from
#+begin_EXAMPLE
  I've also a more in depth howto here:
  https://libreplanet.org/wiki/Group:Hardware/research/gpu/radeon/How_to_patch_and_test_linux-libre_in_Parabola
#+end_EXAMPLE

I skipped the "Find the Linux driver file to patch", "Patching linux-libre" and "Deblobing Linux" parts and went directly to "Building linux-libre". I commented some sections as you suggested to build and install (see linux-libre.diff)

Basically,
1. I cloned linux-libre
   #+begin_SRC bash
     torsocks git clone https://jxself.org/git/linux-libre.git
   #+end_SRC

2. checked out the 5.7.9 branch into a new branch
   #+begin_SRC bash
     cd linux-libre
     git checkout v5.7.9-gnu -b amdgpu-test
   #+end_SRC

3. modified the source (see attachment)

4. set the kernel name
   #+begin_SRC bash
     sed 's#^CONFIG_LOCALVERSION=".*"$#CONFIG_LOCALVERSION="-amdgpu"#' -i .config
     sed 's/^CONFIG_LOCALVERSION_AUTO=y$/# CONFIG_LOCALVERSION_AUTO is not set/g' -i .config
   #+end_SRC

5. built the kernel
   #+begin_SRC bash
     make -j4; make -j4 modules
   #+end_SRC

6. chroot into the partition with systemD
   #+begin_SRC bash
     arch-chroot /mypart/
   #+end_SRC

7. installed the kernel
   #+begin_SRC bash
     make modules_install
     install arch/x86/boot/bzImage /boot/vmlinuz-linux-amdgpu
   #+end_SRC

   #+begin_SRC conf
     ALL_config="/etc/mkinitcpio.conf"
     ALL_kver="/boot/vmlinuz-linux-amdgpu"
     PRESETS=('default')
     default_image="/boot/initramfs-linux-amdgpu.img"
   #+end_SRC

   #+begin_SRC bash
     mkinitcpio -p linux-amdgpu
   #+end_SRC

8. Modified my boot loader and restarted

Still no joy. I am attaching the log :) . Let me know what is next. Thanks!


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