Hi,
On 2023/7/20 04:43, Bjorn Helgaas wrote:
On Wed, Jul 12, 2023 at 12:43:02AM +0800, Sui Jingfeng wrote:
From: Sui Jingfeng <suijingfeng@xxxxxxxxxxx>
This patch adds the aperture_contain_firmware_fb() function to do the
determination. Unfortunately, due to the fact that the apertures list
will be freed dynamically, the location and size information of the
firmware FB will be lost after dedicated drivers call
aperture_remove_conflicting_devices(),
aperture_remove_conflicting_pci_devices() or
aperture_remove_all_conflicting_devices() functions
We solve this problem by introducing two static variables that record the
firmware framebuffer's start addrness and end addrness. It assumes that the
system has only one active firmware framebuffer driver at a time. We don't
use the global structure screen_info here, because PCI resources may get
reallocated (the VRAM BAR could be moved) during the kernel boot stage.
s/addrness/address/ (twice)
Will be fixed at the next version, thanks.
