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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
commit e948e06fc6
1 changed files with 111 additions and 1 deletions
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9
include/misc/ocxl.h
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@ -188,6 +188,15 @@ extern int ocxl_link_add_pe(void *link_handle, int pasid, u32 pidr, u32 tidr,
void (*xsl_err_cb)(void *data, u64 addr, u64 dsisr),
void *xsl_err_data);
/**
* Update values within a Process Element
*
* link_handle: the link handle associated with the process element
* pasid: the PASID for the AFU context
* tid: the new thread id for the process element
*/
extern int ocxl_link_update_pe(void *link_handle, int pasid, __u16 tid);
/*
* Remove a Process Element from the Shared Process Area for a link
*/