[PATCH 2/3] ahci-remap.h: add ahci remapping definitions
From: Christoph Hellwig <hch@lst.de>
Date: 2016-12-02 18:31:02
Also in:
linux-nvme
Subsystem:
the rest · Maintainer:
Linus Torvalds
From: Dan Williams <redacted> Signed-off-by: Dan Williams <redacted> [hch: split into a separate header and commit] Signed-off-by: Christoph Hellwig <hch@lst.de> --- include/linux/ahci-remap.h | 29 +++++++++++++++++++++++++++++ 1 file changed, 29 insertions(+) create mode 100644 include/linux/ahci-remap.h
diff --git a/include/linux/ahci-remap.h b/include/linux/ahci-remap.h
new file mode 100644
index 0000000..883d366
--- /dev/null
+++ b/include/linux/ahci-remap.h@@ -0,0 +1,29 @@ +#ifndef _LINUX_AHCI_REMAP_H +#define _LINUX_AHCI_REMAP_H + +#include <linux/sizes.h> + +#define AHCI_VSCAP 0xa4 +#define AHCI_REMAP_CAP 0x800 +#define AHCI_VSCAP 0xa4 + +/* 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 */
--
2.1.4