On 7/22/21 2:29 PM, Bjorn Helgaas wrote:
> From: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
>
> The VGA arbiter is really PCI-specific and doesn't depend on any GPU
> things. Move it to the PCI subsystem.
>
> Signed-off-by: Bjorn Helgaas <bhelgaas@xxxxxxxxxx>
> ---
> drivers/gpu/vga/Kconfig | 19 -------------------
> drivers/gpu/vga/Makefile | 1 -
> drivers/pci/Kconfig | 19 +++++++++++++++++++
> drivers/pci/Makefile | 1 +
> drivers/{gpu/vga => pci}/vgaarb.c | 0
> 5 files changed, 20 insertions(+), 20 deletions(-)
> rename drivers/{gpu/vga => pci}/vgaarb.c (100%)
>
> diff --git a/drivers/pci/Kconfig b/drivers/pci/Kconfig
> index 0c473d75e625..7c9e56d7b857 100644
> --- a/drivers/pci/Kconfig
> +++ b/drivers/pci/Kconfig
> @@ -252,6 +252,25 @@ config PCIE_BUS_PEER2PEER
>
> endchoice
>
> +config VGA_ARB
> + bool "VGA Arbitration" if EXPERT
> + default y
> + depends on (PCI && !S390)
You can drop the PCI part above.
> + help
> + Some "legacy" VGA devices implemented on PCI typically have the same
> + hard-decoded addresses as they did on ISA. When multiple PCI devices
> + are accessed at same time they need some kind of coordination. Please
> + see Documentation/gpu/vgaarbiter.rst for more details. Select this to
Move that Doc file also...
> + enable VGA arbiter.
> +
--
~Randy
