5.4-stable review patch. If anyone has any objections, please let me know.
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From: Bartosz Pawlowski bartosz.pawlowski@intel.com
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.co... 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 --- drivers/pci/quirks.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-)
--- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -5389,6 +5389,12 @@ DECLARE_PCI_FIXUP_EARLY(PCI_VENDOR_ID_SE 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(str (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 */