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PCI: Extract ATS disabling to a helper function

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commit f18b1137d38c091cc8c16365219f0a1d4a30b3d1 upstream.

Introduce quirk_no_ats() helper function to provide a standard way to
disable ATS capability in PCI quirks.

Suggested-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Link: https://lore.kernel.org/r/20230908143606.685930-2-bartosz.pawlowski@intel.com
Signed-off-by: Bartosz Pawlowski <bartosz.pawlowski@intel.com>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Reviewed-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Bartosz Pawlowski 2023-09-08 14:36:05 +00:00 committed by Greg Kroah-Hartman
parent 8711fa0c06
commit c6141c49bc
1 changed files with 7 additions and 2 deletions
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9
drivers/pci/quirks.c
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@ -5389,6 +5389,12 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, 0x0420, quirk_no_ext_tags);
DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SERVERWORKS, 0x0422, quirk_no_ext_tags);
#ifdef CONFIG_PCI_ATS
static void quirk_no_ats(struct pci_dev *pdev)
{
pci_info(pdev, "disabling ATS\n");
pdev->ats_cap = 0;
}
/*
* Some devices require additional driver setup to enable ATS. Don't use
* ATS for those devices as ATS will be enabled before the driver has had a
@ -5401,8 +5407,7 @@ static void quirk_amd_harvest_no_ats(struct pci_dev *pdev)
(pdev->device == 0x7341 && pdev->revision != 0x00))
return;
pci_info(pdev, "disabling ATS\n");
pdev->ats_cap = 0;
quirk_no_ats(pdev);
}
/* AMD Stoney platform GPU */