linux-kernel - Re: -mm merge plans for 2.6.20

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Date:	Wed, 6 Dec 2006 11:26:03 -0800
From:	Randy Dunlap <randy.dunlap@...cle.com>
To:	conke.hu@...il.com
Cc:	Andrew Morton <akpm@...l.org>, Jeff Garzik <jeff@...zik.org>,
	linux-kernel@...r.kernel.org,
	"linux-ide@...r.kernel.org" <linux-ide@...r.kernel.org>,
	Alan Cox <alan@...rguk.ukuu.org.uk>
Subject: Re: -mm merge plans for 2.6.20

On Thu, 07 Dec 2006 03:19:40 +0800 Conke Hu wrote:

> On Mon, 2006-12-04 at 21:41 -0800, Andrew Morton wrote:
> > On Mon, 04 Dec 2006 23:56:42 -0500
> > Jeff Garzik <jeff@...zik.org> wrote:
> > 
> > > Andrew Morton wrote:
> > > > via-pata-controller-xfer-fixes.patch
> > > > via-pata-controller-xfer-fixes-fix.patch
> > > 
> > > Tejun's 3d3cca37559e3ab2b574eda11ed5207ccdb8980a has been ack'd by the 
> > > reporter as fixing things, so these two shouldn't be needed.
> > 
> > OK thanks, I dropped it.
> > 
> > > 
> > > > libata_resume_fix.patch
> > > 
> > > I thought this was resolved long ago?  Are there still open reports that 
> > > this solves, where upstream doesn't work?
> > 
> > Heck, I don't know.
> > 
> > > 
> > > > ahci-ati-sb600-sata-support-for-various-modes.patch
> > > 
> > > With the PCI quirk, I thought ATI was finally sorted?
> > 
> > Was it?  I don't know that either.
> > 
> > I'll drop these too.
> > -
> 
> Hi Jeff, Andrew
>     The following patch is ATI's final solution. It was ACKed by Alan.
>     Jeff, you're the maintainer of libata, but this patch is based on
> pci/quirks.c, so I don't know who will apply this patch? You or somebody
> else?
>     Andrew, could you please drop ATI's previous patch and add this one
> in next -mm patch? The previous patch I sent
> (ahci-ati-sb600-sata-support-for-various-modes.patch) is not as good as
> this one :)
> 
> 
> Best regards,
> Conke @AMD/ATI
> 
> 
> [------------------PATCH------------------]
> 
> --- linux-2.6.19-rc6-git4/drivers/pci/quirks.c.orig     2006-11-23
> 19:45:49.000000000 +0800
> +++ linux-2.6.19-rc6-git4/drivers/pci/quirks.c  2006-11-23
> 19:34:23.000000000 +0800
> @@ -795,6 +795,25 @@ static void __init quirk_mediagx_master(
>        }
>  }
>  DECLARE_PCI_FIXUP_FINAL(PCI_VENDOR_ID_CYRIX,
> PCI_DEVICE_ID_CYRIX_PCI_MASTER, quirk_mediagx_master );
> +
> +#if defined(CONFIG_SATA_AHCI) || defined(CONFIG_SATA_AHCI_MODULE)
> +static void __devinit quirk_sb600_sata(struct pci_dev *pdev)
> +{
> +       /* set sb600 sata to ahci mode */
> +       if ((pdev->class >> 8) == PCI_CLASS_STORAGE_IDE) {
> +               u8 tmp;
> +
> +               pci_read_config_byte(pdev, 0x40, &tmp);
> +               pci_write_config_byte(pdev, 0x40, tmp|1);
> +               pci_write_config_byte(pdev, 0x9, 1);
> +               pci_write_config_byte(pdev, 0xa, 6);
> +               pci_write_config_byte(pdev, 0x40, tmp);
> +
> +               pdev->class = 0x010601;
> +       }
> +}
> +DECLARE_PCI_FIXUP_HEADER(PCI_VENDOR_ID_ATI,
> PCI_DEVICE_ID_ATI_IXP600_SATA, quirk_sb600_sata);
> +#endif
> 
>  /*
>  * As per PCI spec, ignore base address registers 0-3 of the IDE
> controllers


Can you use fewer magic numbers, please?
At least some of those are already #defined in
include/linux/pci_regs.h.

---
~Randy
-
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