1 files changed, 52 insertions, 0 deletions
diff --git a/include/linux/pci-ats.h b/include/linux/pci-ats.h
new file mode 100644
index 000000000..df54cd5b1
--- /dev/null
+++ b/include/linux/pci-ats.h
@@ -0,0 +1,52 @@
+/* SPDX-License-Identifier: GPL-2.0 */
+#ifndef LINUX_PCI_ATS_H
+#define LINUX_PCI_ATS_H
+
+#include <linux/pci.h>
+
+#ifdef CONFIG_PCI_ATS
+/* Address Translation Service */
+bool pci_ats_supported(struct pci_dev *dev);
+int pci_enable_ats(struct pci_dev *dev, int ps);
+void pci_disable_ats(struct pci_dev *dev);
+int pci_ats_queue_depth(struct pci_dev *dev);
+int pci_ats_page_aligned(struct pci_dev *dev);
+#else /* CONFIG_PCI_ATS */
+static inline bool pci_ats_supported(struct pci_dev *d)
+{ return false; }
+static inline int pci_enable_ats(struct pci_dev *d, int ps)
+{ return -ENODEV; }
+static inline void pci_disable_ats(struct pci_dev *d) { }
+static inline int pci_ats_queue_depth(struct pci_dev *d)
+{ return -ENODEV; }
+static inline int pci_ats_page_aligned(struct pci_dev *dev)
+{ return 0; }
+#endif /* CONFIG_PCI_ATS */
+
+#ifdef CONFIG_PCI_PRI
+int pci_enable_pri(struct pci_dev *pdev, u32 reqs);
+void pci_disable_pri(struct pci_dev *pdev);
+int pci_reset_pri(struct pci_dev *pdev);
+int pci_prg_resp_pasid_required(struct pci_dev *pdev);
+bool pci_pri_supported(struct pci_dev *pdev);
+#else
+static inline bool pci_pri_supported(struct pci_dev *pdev)
+{ return false; }
+#endif /* CONFIG_PCI_PRI */
+
+#ifdef CONFIG_PCI_PASID
+int pci_enable_pasid(struct pci_dev *pdev, int features);
+void pci_disable_pasid(struct pci_dev *pdev);
+int pci_pasid_features(struct pci_dev *pdev);
+int pci_max_pasids(struct pci_dev *pdev);
+#else /* CONFIG_PCI_PASID */
+static inline int pci_enable_pasid(struct pci_dev *pdev, int features)
+{ return -EINVAL; }
+static inline void pci_disable_pasid(struct pci_dev *pdev) { }
+static inline int pci_pasid_features(struct pci_dev *pdev)
+{ return -EINVAL; }
+static inline int pci_max_pasids(struct pci_dev *pdev)
+{ return -EINVAL; }
+#endif /* CONFIG_PCI_PASID */
+
+#endif /* LINUX_PCI_ATS_H */