linux-kernel - Re: [PATCH v3 3/6] MIPS: ralink: set PCI_IOBASE to 'mips_io_port

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Message-ID: <20211003160720.GB4984@alpha.franken.de>
Date:   Sun, 3 Oct 2021 18:07:20 +0200
From:   Thomas Bogendoerfer <tsbogend@...ha.franken.de>
To:     Sergio Paracuellos <sergio.paracuellos@...il.com>
Cc:     robh@...nel.org, arnd@...db.de, catalin.marinas@....com,
        Liviu.Dudau@....com, bhelgaas@...gle.com, matthias.bgg@...il.com,
        gregkh@...uxfoundation.org, linux-mips@...r.kernel.org,
        linux-pci@...r.kernel.org, linux-staging@...ts.linux.dev,
        neil@...wn.name, linux-kernel@...r.kernel.org
Subject: Re: [PATCH v3 3/6] MIPS: ralink: set PCI_IOBASE to
 'mips_io_port_base'

On Sat, Sep 25, 2021 at 10:32:21PM +0200, Sergio Paracuellos wrote:
> By default MIPS architecture use function 'set_io_port_base()' to set the
> virtual address of the first IO port. This function at the end sets variable
> 'mips_io_port_base' with the desired address. To align things and allow
> to change first IO port location address for PCI, set PCI_IOBASE definition
> as 'mips_io_port_base'.
> 
> Fixes: 222b27713d7f ("MIPS: ralink: Define PCI_IOBASE")
> Acked-by: Arnd Bergmann <arnd@...db.de>
> Signed-off-by: Sergio Paracuellos <sergio.paracuellos@...il.com>
> ---
>  arch/mips/include/asm/mach-ralink/spaces.h | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/arch/mips/include/asm/mach-ralink/spaces.h b/arch/mips/include/asm/mach-ralink/spaces.h
> index 87d085c9ad61..05d14c21c417 100644
> --- a/arch/mips/include/asm/mach-ralink/spaces.h
> +++ b/arch/mips/include/asm/mach-ralink/spaces.h
> @@ -2,8 +2,8 @@
>  #ifndef __ASM_MACH_RALINK_SPACES_H_
>  #define __ASM_MACH_RALINK_SPACES_H_
>  
> -#define PCI_IOBASE	_AC(0xa0000000, UL)
> -#define PCI_IOSIZE	SZ_16M
> +#define PCI_IOBASE	mips_io_port_base
> +#define PCI_IOSIZE	SZ_64K
>  #define IO_SPACE_LIMIT	(PCI_IOSIZE - 1)
>  
>  #include <asm/mach-generic/spaces.h>

Acked-by: Thomas Bogendoerfer <tsbogend@...ha.franken.de>

-- 
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