From: Dan Williams <dan.j.williams@xxxxxxxxx>
Signed-off-by: Dan Williams <dan.j.williams@xxxxxxxxx>
[hch: split into a separate header and commit]
Signed-off-by: Christoph Hellwig <hch@xxxxxx>
---
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
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