include/linux/ahci-remap.h

   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 */