linux/include/linux/ahci-remap.h
Dan Williams bfa9cb3e11 ahci-remap.h: add ahci remapping definitions
Signed-off-by: Dan Williams <dan.j.williams@intel.com>
[hch: split into a separate header and commit]
Signed-off-by: Christoph Hellwig <hch@lst.de>
[tj: dropped duplicate definition of AHCI_VSCAP spotted by Sergei]
Cc: Sergei Shtylyov <sergei.shtylyov@cogentembedded.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
2016-12-05 14:31:24 -05:00

29 lines
568 B
C

#ifndef _LINUX_AHCI_REMAP_H
#define _LINUX_AHCI_REMAP_H
#include <linux/sizes.h>
#define AHCI_VSCAP 0xa4
#define AHCI_REMAP_CAP 0x800
/* device class code */
#define AHCI_REMAP_N_DCC 0x880
/* remap-device base relative to ahci-bar */
#define AHCI_REMAP_N_OFFSET SZ_16K
#define AHCI_REMAP_N_SIZE SZ_16K
#define AHCI_MAX_REMAP 3
static inline unsigned int ahci_remap_dcc(int i)
{
return AHCI_REMAP_N_DCC + i * 0x80;
}
static inline unsigned int ahci_remap_base(int i)
{
return AHCI_REMAP_N_OFFSET + i * AHCI_REMAP_N_SIZE;
}
#endif /* _LINUX_AHCI_REMAP_H */