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authorAlastair D'Silva <alastair@d-silva.org>2018-05-11 09:13:01 +0300
committerMichael Ellerman <mpe@ellerman.id.au>2018-06-03 13:40:32 +0300
commite948e06fc63a1c1e36ec4c8e5c510b881ff19c26 (patch)
tree59a49968a3211c2708b135d6c79f97af3c9b2cb1 /include/uapi/misc/ocxl.h
parent19df39581ce99eb1fcfb119945810c9c5bc3f8d4 (diff)
downloadlinux-e948e06fc63a1c1e36ec4c8e5c510b881ff19c26.tar.xz
ocxl: Expose the thread_id needed for wait on POWER9
In order to successfully issue as_notify, an AFU needs to know the TID to notify, which in turn means that this information should be available in userspace so it can be communicated to the AFU. Signed-off-by: Alastair D'Silva <alastair@d-silva.org> Acked-by: Andrew Donnellan <andrew.donnellan@au1.ibm.com> Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Diffstat (limited to 'include/uapi/misc/ocxl.h')
-rw-r--r--include/uapi/misc/ocxl.h8
1 files changed, 8 insertions, 0 deletions
diff --git a/include/uapi/misc/ocxl.h b/include/uapi/misc/ocxl.h
index 0af83d80fb3e..561e6f0dfcb7 100644
--- a/include/uapi/misc/ocxl.h
+++ b/include/uapi/misc/ocxl.h
@@ -48,6 +48,13 @@ struct ocxl_ioctl_metadata {
__u64 reserved[13]; // Total of 16*u64
};
+struct ocxl_ioctl_p9_wait {
+ __u16 thread_id; // The thread ID required to wake this thread
+ __u16 reserved1;
+ __u32 reserved2;
+ __u64 reserved3[3];
+};
+
struct ocxl_ioctl_irq_fd {
__u64 irq_offset;
__s32 eventfd;
@@ -62,5 +69,6 @@ struct ocxl_ioctl_irq_fd {
#define OCXL_IOCTL_IRQ_FREE _IOW(OCXL_MAGIC, 0x12, __u64)
#define OCXL_IOCTL_IRQ_SET_FD _IOW(OCXL_MAGIC, 0x13, struct ocxl_ioctl_irq_fd)
#define OCXL_IOCTL_GET_METADATA _IOR(OCXL_MAGIC, 0x14, struct ocxl_ioctl_metadata)
+#define OCXL_IOCTL_ENABLE_P9_WAIT _IOR(OCXL_MAGIC, 0x15, struct ocxl_ioctl_p9_wait)
#endif /* _UAPI_MISC_OCXL_H */