1 /* SPDX-License-Identifier: GPL-2.0 */
2 #ifndef _LINUX_AHCI_REMAP_H
3 #define _LINUX_AHCI_REMAP_H
4
5 #include <linux/sizes.h>
6
7 #define AHCI_VSCAP 0xa4
8 #define AHCI_REMAP_CAP 0x800
9
10 /* device class code */
11 #define AHCI_REMAP_N_DCC 0x880
12
13 /* remap-device base relative to ahci-bar */
14 #define AHCI_REMAP_N_OFFSET SZ_16K
15 #define AHCI_REMAP_N_SIZE SZ_16K
16
17 #define AHCI_MAX_REMAP 3
18
19 static inline unsigned int ahci_remap_dcc(int i)
20 {
21 return AHCI_REMAP_N_DCC + i * 0x80;
22 }
23
24 static inline unsigned int ahci_remap_base(int i)
25 {
26 return AHCI_REMAP_N_OFFSET + i * AHCI_REMAP_N_SIZE;
27 }
28
29 #endif /* _LINUX_AHCI_REMAP_H */
30
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