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Update documentation for IPC handles

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Explicitly mention that IPC handles can only be created on GPU agents.

Change-Id: I19bc3578d6e5243c795bf6fbf981ea4bd3bfc2e8


[ROCm/ROCR-Runtime commit: 5e4490f180]
This commit is contained in:
David Yat Sin
2023-06-06 10:06:00 -04:00
parent 1772d866c9
commit 8c3acb3974
1 changed files with 3 additions and 2 deletions
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projects/rocr-runtime/runtime/hsa-runtime/inc/hsa_ext_amd.h
+3 -2
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@@ -2062,9 +2062,10 @@ typedef struct hsa_amd_ipc_memory_s {
* region has been attached (via hsa_amd_ipc_memory_attach) in the remote
* process prior to releasing that memory in the local process.
* Repeated calls for the same allocation may, but are not required to, return
* unique handles.
* unique handles. The allocation needs to be on memory on an agent of type
* HSA_DEVICE_TYPE_GPU.
*
* @param[in] ptr Pointer to memory allocated via ROCr APIs to prepare for
* @param[in] ptr Pointer to device memory allocated via ROCr APIs to prepare for
* sharing.
*
* @param[in] len Length in bytes of the allocation to share.