On Friday, June 22, 2018 09:54:22 AM Ard Biesheuvel wrote: > On 13 June 2018 at 18:08, Bartlomiej Zolnierkiewicz > <b.zolnierkie@xxxxxxxxxxx> wrote: > > On Wednesday, June 13, 2018 05:45:48 PM Ard Biesheuvel wrote: > >> On 18 May 2018 at 16:17, Sinan Kaya <okaya@xxxxxxxxxxxxxx> wrote: > >> > A host bridge is allowed to remap BAR addresses using _TRA attribute in > >> > _CRS windows. > >> > > >> > pci_bus 0000:00: root bus resource [mem 0x80100100000-0x8011fffffff window] (bus address [0x00100000-0x1fffffff]) > >> > pci 0000:02:00.0: reg 0x10: [mem 0x8011e000000-0x8011effffff] > >> > > >> > When a VGA device is behind such a host bridge and the resource is > >> > translated efifb driver is trying to do ioremap against bus address > >> > rather than the resource address and is failing to probe. > >> > > >> > efifb: probing for efifb > >> > efifb: cannot reserve video memory at 0x1e000000 > >> > efifb: framebuffer at 0x1e000000, using 1920k, total 1875k > >> > efifb: mode is 800x600x32, linelength=3200, pages=1 > >> > efifb: scrolling: redraw > >> > efifb: Truecolor: size=8:8:8:8, shift=24:16:8:0 > >> > > >> > Use the host bridge offset information to convert bus address to > >> > resource address in the fixup. > >> > > >> > Signed-off-by: Sinan Kaya <okaya@xxxxxxxxxxxxxx> > >> > >> Reviewed-by: Ard Biesheuvel <ard.biesheuvel@xxxxxxxxxx> > >> > >> Bartlomiej, could you please take these via the fbdev tree for v4.19? > > > > Sure, I will queue it after the current merge window. > > > >> Peter already gave his ack but Sinan dropped it (presumably because of > >> the split in v2) > > > > Peter, can I (re)add your ACK to V2 patches? > > > > Actually, it would be better if we could take this through the EFI > tree instead, with your ack. Would you mind? Fine with me. > There are some other efifb changes coming up, some of which depend on > core EFI changes, and taking these through different trees is going to > be more trouble than it's worth. Best regards, -- Bartlomiej Zolnierkiewicz Samsung R&D Institute Poland Samsung Electronics _______________________________________________ dri-devel mailing list dri-devel@xxxxxxxxxxxxxxxxxxxxx https://lists.freedesktop.org/mailman/listinfo/dri-devel
