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| author | Brian Bakke <bbakke@us.ibm.com> | 2018-05-22 11:30:26 -0500 |
|---|---|---|
| committer | Daniel M. Crowell <dcrowell@us.ibm.com> | 2018-06-07 13:37:46 -0400 |
| commit | e364f91be1727019dd594c57d496e5ce43e8f5f0 (patch) | |
| tree | 3515d4777d5ca4705fc232b02110d6c480151eff /src/lib | |
| parent | 0c6d58230e615000dee1a1940bf4bc84ad5c1798 (diff) | |
| download | talos-hostboot-e364f91be1727019dd594c57d496e5ce43e8f5f0.tar.gz talos-hostboot-e364f91be1727019dd594c57d496e5ce43e8f5f0.zip | |
Fixes to node IPC messaging to handle non-zero base addresses
Current code has each Node calculate each Remote Node's IPC area
remote address by performing a fixed format calculation.
This change has each Node calculating its IPC area Remote address
and posting this value to a local SCOM register. A Node reads
a Remote Node's SCOM register to acquire the Remote IPC area
address.
Change-Id: I25260ce180e0d07e5e81990d4c1f99e249912491
RTC:191463
Reviewed-on: http://ralgit01.raleigh.ibm.com/gerrit1/59177
Tested-by: Jenkins Server <pfd-jenkins+hostboot@us.ibm.com>
Reviewed-by: William G. Hoffa <wghoffa@us.ibm.com>
Tested-by: Jenkins OP Build CI <op-jenkins+hostboot@us.ibm.com>
Tested-by: Jenkins OP HW <op-hw-jenkins+hostboot@us.ibm.com>
Tested-by: FSP CI Jenkins <fsp-CI-jenkins+hostboot@us.ibm.com>
Reviewed-by: Prachi Gupta <pragupta@us.ibm.com>
Reviewed-by: Daniel M. Crowell <dcrowell@us.ibm.com>
Diffstat (limited to 'src/lib')
| -rw-r--r-- | src/lib/syscall_msg.C | 30 |
1 files changed, 29 insertions, 1 deletions
diff --git a/src/lib/syscall_msg.C b/src/lib/syscall_msg.C index e5a63920f..9004461c4 100644 --- a/src/lib/syscall_msg.C +++ b/src/lib/syscall_msg.C @@ -5,7 +5,7 @@ /* */ /* OpenPOWER HostBoot Project */ /* */ -/* Contributors Listed Below - COPYRIGHT 2010,2015 */ +/* Contributors Listed Below - COPYRIGHT 2010,2018 */ /* [+] International Business Machines Corp. */ /* */ /* */ @@ -151,3 +151,31 @@ msg_t* msg_wait(msg_q_t q) return (msg_t*)_syscall1(MSG_WAIT, q); } +int updateRemoteIpcAddr(uint64_t i_Node, uint64_t i_RemoteAddr) +{ + return (int64_t)_syscall2(UPDATE_REMOTE_IPC_ADDR, + (void *)i_Node, + (void *)i_RemoteAddr); +} + +int qryLocalIpcInfo(uint64_t & o_Node, uint64_t & o_Addr) +{ + // need to allocate a buffer on the heap as Kernel cannot + // store back to user stack buffer + uint64_t * l_pTmpBfr = new uint64_t[2]; + l_pTmpBfr[0] = o_Node; // seed tmp bfr with contents of out bfr + l_pTmpBfr[1] = o_Addr; // to hide the existence of the + // intermediate tmp bfr + void * l_pNode = reinterpret_cast<void *>(&l_pTmpBfr[0]); + void * l_pAddr = reinterpret_cast<void *>(&l_pTmpBfr[1]); + + void * l_retVal = _syscall2( QRY_LOCAL_IPC_INFO, + l_pNode, + l_pAddr ); + + o_Node = l_pTmpBfr[0]; + o_Addr = l_pTmpBfr[1]; + delete [] l_pTmpBfr; + + return( reinterpret_cast<int64_t>(l_retVal) ); +} |
