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a168da31 |
| 12-Feb-2024 |
Thomas Zimmermann <tzimmermann@suse.de> |
firmware/sysfb: Update screen_info for relocated EFI framebuffers
[ Upstream commit 78aa89d1dfba1e3cf4a2e053afa3b4c4ec622371 ]
On ARM PCI systems, the PCI hierarchy might be reconfigured during boo
firmware/sysfb: Update screen_info for relocated EFI framebuffers
[ Upstream commit 78aa89d1dfba1e3cf4a2e053afa3b4c4ec622371 ]
On ARM PCI systems, the PCI hierarchy might be reconfigured during boot and the firmware framebuffer might move as a result of that. The values in screen_info will then be invalid.
Work around this problem by tracking the framebuffer's initial location before it get relocated; then fix the screen_info state between reloaction and creating the firmware framebuffer's device.
This functionality has been lifted from efifb. See the commit message of commit 55d728a40d36 ("efi/fb: Avoid reconfiguration of BAR that covers the framebuffer") for more information.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240212090736.11464-8-tzimmermann@suse.de Stable-dep-of: c2bc958b2b03 ("fbdev: vesafb: Detect VGA compatibility from screen info's VESA attributes") Signed-off-by: Sasha Levin <sashal@kernel.org>
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f5dce77f |
| 12-Feb-2024 |
Thomas Zimmermann <tzimmermann@suse.de> |
video: Provide screen_info_get_pci_dev() to find screen_info's PCI device
[ Upstream commit 036105e3a776b6fc2fe0d262896a23ff2cc2e6b1 ]
Add screen_info_get_pci_dev() to find the PCI device of an ins
video: Provide screen_info_get_pci_dev() to find screen_info's PCI device
[ Upstream commit 036105e3a776b6fc2fe0d262896a23ff2cc2e6b1 ]
Add screen_info_get_pci_dev() to find the PCI device of an instance of screen_info. Does nothing on systems without PCI bus.
v3: * search PCI device with pci_get_base_class() (Sui) v2: * remove ret from screen_info_pci_dev() (Javier)
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de> Reviewed-by: Javier Martinez Canillas <javierm@redhat.com> Link: https://patchwork.freedesktop.org/patch/msgid/20240212090736.11464-3-tzimmermann@suse.de Stable-dep-of: c2bc958b2b03 ("fbdev: vesafb: Detect VGA compatibility from screen info's VESA attributes") Signed-off-by: Sasha Levin <sashal@kernel.org>
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