1 /* SPDX-License-Identifier: GPL-2.0 */
5 #include <linux/auxiliary_bus.h>
6 #include <linux/bits.h>
8 #define VSEC_CAP_TELEMETRY BIT(0)
9 #define VSEC_CAP_WATCHER BIT(1)
10 #define VSEC_CAP_CRASHLOG BIT(2)
11 #define VSEC_CAP_SDSI BIT(3)
12 #define VSEC_CAP_TPMI BIT(4)
14 /* Intel DVSEC offsets */
15 #define INTEL_DVSEC_ENTRIES 0xA
16 #define INTEL_DVSEC_SIZE 0xB
17 #define INTEL_DVSEC_TABLE 0xC
18 #define INTEL_DVSEC_TABLE_BAR(x) ((x) & GENMASK(2, 0))
19 #define INTEL_DVSEC_TABLE_OFFSET(x) ((x) & GENMASK(31, 3))
20 #define TABLE_OFFSET_SHIFT 3
26 VSEC_ID_TELEMETRY = 2,
34 * struct intel_vsec_header - Common fields of Intel VSEC and DVSEC registers.
35 * @rev: Revision ID of the VSEC/DVSEC register space
36 * @length: Length of the VSEC/DVSEC register space
37 * @id: ID of the feature
38 * @num_entries: Number of instances of the feature
39 * @entry_size: Size of the discovery table for each feature
40 * @tbir: BAR containing the discovery tables
41 * @offset: BAR offset of start of the first discovery table
43 struct intel_vsec_header {
53 enum intel_vsec_quirks {
54 /* Watcher feature not supported */
55 VSEC_QUIRK_NO_WATCHER = BIT(0),
57 /* Crashlog feature not supported */
58 VSEC_QUIRK_NO_CRASHLOG = BIT(1),
60 /* Use shift instead of mask to read discovery table offset */
61 VSEC_QUIRK_TABLE_SHIFT = BIT(2),
63 /* DVSEC not present (provided in driver data) */
64 VSEC_QUIRK_NO_DVSEC = BIT(3),
66 /* Platforms requiring quirk in the auxiliary driver */
67 VSEC_QUIRK_EARLY_HW = BIT(4),
70 /* Platform specific data */
71 struct intel_vsec_platform_info {
72 struct device *parent;
73 struct intel_vsec_header **headers;
79 struct intel_vsec_device {
80 struct auxiliary_device auxdev;
81 struct pci_dev *pcidev;
82 struct resource *resource;
87 size_t priv_data_size;
92 int intel_vsec_add_aux(struct pci_dev *pdev, struct device *parent,
93 struct intel_vsec_device *intel_vsec_dev,
96 static inline struct intel_vsec_device *dev_to_ivdev(struct device *dev)
98 return container_of(dev, struct intel_vsec_device, auxdev.dev);
101 static inline struct intel_vsec_device *auxdev_to_ivdev(struct auxiliary_device *auxdev)
103 return container_of(auxdev, struct intel_vsec_device, auxdev);
106 void intel_vsec_register(struct pci_dev *pdev,
107 struct intel_vsec_platform_info *info);