Am 21.11.25 um 17:08 schrieb Thomas Zimmermann:
Hi
Am 21.11.25 um 16:56 schrieb Ard Biesheuvel:
On Fri, 21 Nov 2025 at 16:53, Thomas Zimmermann <[email protected]>
wrote:
Hi
Am 21.11.25 um 16:16 schrieb Ard Biesheuvel:
On Fri, 21 Nov 2025 at 16:10, Arnd Bergmann <[email protected]> wrote:
On Fri, Nov 21, 2025, at 14:36, Thomas Zimmermann wrote:
Replace screen_info and edid_info with sysfb_primary_device of type
struct sysfb_display_info. Update all users.
Sysfb DRM drivers currently fetch the global edid_info directly,
when
they should get that information together with the screen_info
from their
device. Wrapping screen_info and edid_info in
sysfb_primary_display and
passing this to drivers enables this.
Replacing both with sysfb_primary_display has been motivate by
the EFI
stub. EFI wants to transfer EDID via config table in a single entry.
Using struct sysfb_display_info this will become easily possible.
Hence
accept some churn in architecture code for the long-term
improvements.
This all looks good to me,
Acked-by: Arnd Bergmann <[email protected]>
Thanks
It should also bring us one step closer to eventually
disconnecting the x86 boot ABI from the kernel-internal
sysfb_primary_display.
Agreed
Acked-by: Ard Biesheuvel <[email protected]>
Thanks
I can take patches 1-2 right away, if that helps during the next
cycle.
From my sysfb-focused POV, these patches would ideally all go through
the same tree, say efi or generic arch, or whatever fits best. Most of
the other code is only renames anyway.
I don't mind queueing all of it, but I did get a conflict on
drivers/pci/vgaarb.c
Probably from a78835b86a44 ("PCI/VGA: Select SCREEN_INFO on X86")
https://lore.kernel.org/all/[email protected]/
that I have in my tree. You can fix it by replacing screen_info with
sysfb_primary_display.screen. The later merge conflict seems manageable.
Best regards
Thomas
--
--
Thomas Zimmermann
Graphics Driver Developer
SUSE Software Solutions Germany GmbH
Frankenstr. 146, 90461 Nürnberg, Germany, www.suse.com
GF: Jochen Jaser, Andrew McDonald, Werner Knoblich, (HRB 36809, AG Nürnberg)
