tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
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linux
1/* SPDX-License-Identifier: GPL-2.0 */
2#ifndef LINUX_PCI_ATS_H
3#define LINUX_PCI_ATS_H
4
5#include <linux/pci.h>
6
7#ifdef CONFIG_PCI_ATS
8/* Address Translation Service */
9int pci_enable_ats(struct pci_dev *dev, int ps);
10void pci_disable_ats(struct pci_dev *dev);
11int pci_ats_queue_depth(struct pci_dev *dev);
12int pci_ats_page_aligned(struct pci_dev *dev);
13#else /* CONFIG_PCI_ATS */
14static inline int pci_enable_ats(struct pci_dev *d, int ps)
15{ return -ENODEV; }
16static inline void pci_disable_ats(struct pci_dev *d) { }
17static inline int pci_ats_queue_depth(struct pci_dev *d)
18{ return -ENODEV; }
19static inline int pci_ats_page_aligned(struct pci_dev *dev)
20{ return 0; }
21#endif /* CONFIG_PCI_ATS */
22
23#ifdef CONFIG_PCI_PRI
24int pci_enable_pri(struct pci_dev *pdev, u32 reqs);
25void pci_disable_pri(struct pci_dev *pdev);
26int pci_reset_pri(struct pci_dev *pdev);
27int pci_prg_resp_pasid_required(struct pci_dev *pdev);
28#endif /* CONFIG_PCI_PRI */
29
30#ifdef CONFIG_PCI_PASID
31int pci_enable_pasid(struct pci_dev *pdev, int features);
32void pci_disable_pasid(struct pci_dev *pdev);
33int pci_pasid_features(struct pci_dev *pdev);
34int pci_max_pasids(struct pci_dev *pdev);
35#else /* CONFIG_PCI_PASID */
36static inline int pci_pasid_features(struct pci_dev *pdev)
37{ return -EINVAL; }
38static inline int pci_max_pasids(struct pci_dev *pdev)
39{ return -EINVAL; }
40#endif /* CONFIG_PCI_PASID */
41
42#endif /* LINUX_PCI_ATS_H */