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ocxl: Expose the thread_id needed for wait on POWER9

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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>
This commit is contained in:
Alastair D'Silva
2018-05-11 16:13:01 +10:00
committed by Michael Ellerman
parent 19df39581c
commit e948e06fc6
6 changed files with 111 additions and 1 deletions
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8
include/uapi/misc/ocxl.h
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@@ -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 */