diff options
Diffstat (limited to 'drivers/pci/pci.c')
| -rw-r--r-- | drivers/pci/pci.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/pci/pci.c b/drivers/pci/pci.c index 1da93e6e8623..b345d20227b8 100644 --- a/drivers/pci/pci.c +++ b/drivers/pci/pci.c @@ -112,6 +112,14 @@ unsigned int pcibios_max_latency = 255; /* If set, the PCIe ARI capability will not be used. */ static bool pcie_ari_disabled; +/* If set, the PCIe ATS capability will not be used. */ +static bool pcie_ats_disabled; + +bool pci_ats_disabled(void) +{ + return pcie_ats_disabled; +} + /* Disable bridge_d3 for all PCIe ports */ static bool pci_bridge_d3_disable; /* Force bridge_d3 for all PCIe ports */ @@ -5777,6 +5785,9 @@ static int __init pci_setup(char *str) if (*str && (str = pcibios_setup(str)) && *str) { if (!strcmp(str, "nomsi")) { pci_no_msi(); + } else if (!strncmp(str, "noats", 5)) { + pr_info("PCIe: ATS is disabled\n"); + pcie_ats_disabled = true; } else if (!strcmp(str, "noaer")) { pci_no_aer(); } else if (!strncmp(str, "realloc=", 8)) { |
