diff options
| author | Marti Raudsepp <marti@juffo.org> | 2014-10-02 08:50:31 -0600 |
|---|---|---|
| committer | Bjorn Helgaas <bhelgaas@google.com> | 2014-10-02 08:50:31 -0600 |
| commit | 3587e625fe24a2d1cd1891fc660c3313151a368c (patch) | |
| tree | 1200f92fd3675818e363f15281e883ef619187d7 /drivers/pci | |
| parent | 100ebb2c48eaddd6a7ce9602d5d4c37f0a3c9232 (diff) | |
PCI: Add ACS quirk for AMD A88X southbridge devices
AMD has confirmed that peer-to-peer between two southbridge functions does
not occur.
Add a quirk to indicate that these functions are isolated even though they
don't have an ACS capability.
Link: https://bugzilla.kernel.org/show_bug.cgi?id=81841
Signed-off-by: Marti Raudsepp <marti@juffo.org>
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com>
Acked-by: Joel Schopp <joel.schopp@amd.com>
Diffstat (limited to 'drivers/pci')
| -rw-r--r-- | drivers/pci/quirks.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/pci/quirks.c b/drivers/pci/quirks.c index 322d577503bd..b1349b4dfb70 100644 --- a/drivers/pci/quirks.c +++ b/drivers/pci/quirks.c @@ -3533,6 +3533,11 @@ DECLARE_PCI_FIXUP_HEADER(0x8086, 0x244e, quirk_use_pcie_bridge_dma_alias); * 1002:439d SB7x0/SB8x0/SB9x0 LPC host controller * 1002:4384 SBx00 PCI to PCI Bridge * 1002:4399 SB7x0/SB8x0/SB9x0 USB OHCI2 Controller + * + * https://bugzilla.kernel.org/show_bug.cgi?id=81841#c15 + * + * 1022:780f [AMD] FCH PCI Bridge + * 1022:7809 [AMD] FCH USB OHCI Controller */ static int pci_quirk_amd_sb_acs(struct pci_dev *dev, u16 acs_flags) { @@ -3643,6 +3648,8 @@ static const struct pci_dev_acs_enabled { { PCI_VENDOR_ID_ATI, 0x439d, pci_quirk_amd_sb_acs }, { PCI_VENDOR_ID_ATI, 0x4384, pci_quirk_amd_sb_acs }, { PCI_VENDOR_ID_ATI, 0x4399, pci_quirk_amd_sb_acs }, + { PCI_VENDOR_ID_AMD, 0x780f, pci_quirk_amd_sb_acs }, + { PCI_VENDOR_ID_AMD, 0x7809, pci_quirk_amd_sb_acs }, { PCI_VENDOR_ID_SOLARFLARE, 0x0903, pci_quirk_mf_endpoint_acs }, { PCI_VENDOR_ID_SOLARFLARE, 0x0923, pci_quirk_mf_endpoint_acs }, { PCI_VENDOR_ID_INTEL, 0x10C6, pci_quirk_mf_endpoint_acs }, |