Re: [PATCH v2 1/9] PCI/VGA: Move vgaarb to drivers/pci

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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




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