Re: [PATCH] PCI: Add ACS quirk for Intel 300 series chipset

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On Fri, Apr 27, 2018 at 01:44:23PM +0300, Mika Westerberg wrote:
> Intel 300 series chipset still has the same ACS issue than the previous
> generations so extend the ACS quirk to cover it as well.
> 
> Signed-off-by: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx>

Applied to pci/virtualization for v4.18, thanks!

Stable tag here, too?

> ---
>  drivers/pci/quirks.c | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c
> index 2990ad1e7c99..7a0f41176369 100644
> --- a/drivers/pci/quirks.c
> +++ b/drivers/pci/quirks.c
> @@ -4230,6 +4230,11 @@ static int pci_quirk_qcom_rp_acs(struct pci_dev *dev, u16 acs_flags)
>   * 0xa290-0xa29f PCI Express Root port #{0-16}
>   * 0xa2e7-0xa2ee PCI Express Root port #{17-24}
>   *
> + * The 300 series chipset suffers from the same bug so include those root
> + * ports here as well.
> + *
> + * 0xa32c-0xa343 PCI Express Root port #{0-24}
> + *
>   * [1] http://www.intel.com/content/www/us/en/chipsets/100-series-chipset-datasheet-vol-2.html
>   * [2] http://www.intel.com/content/www/us/en/chipsets/100-series-chipset-datasheet-vol-1.html
>   * [3] http://www.intel.com/content/www/us/en/chipsets/100-series-chipset-spec-update.html
> @@ -4244,6 +4249,7 @@ static bool pci_quirk_intel_spt_pch_acs_match(struct pci_dev *dev)
>  	switch (dev->device) {
>  	case 0xa110 ... 0xa11f: case 0xa167 ... 0xa16a: /* Sunrise Point */
>  	case 0xa290 ... 0xa29f: case 0xa2e7 ... 0xa2ee: /* Union Point */
> +	case 0xa32c ... 0xa343:				/* 300 series */
>  		return true;
>  	}
>  
> -- 
> 2.17.0
> 



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